text: WASHINGTON, July 30 (Reuters) - Two key committees in the U.S. Congress on Tuesday said they are reviving efforts to pass long-stalled legislation to speed the adoption of self-driving cars.. The House Energy and Commerce Committee and Senate Commerce Committee sent automakers, safety groups and others interested in the bill a request seeking input and said they are. The Energy Commerce and Committee said in a statement on Tuesday it is “committed to finding a solution that balances the American creative spirit with a clear federal framework that advances technology that will save lives, improve mobility for so many, and drive economic growth. We believe an open process will deliver an outcome we can all support.” (Reporting by David Shepardson; Editing by Sandra Maler)

textbook:
**Lesson: Introduction to Self-Driving Cars**

**Overview**

Self-driving cars are becoming more common in today's world. They use sensors, cameras, and artificial intelligence to drive themselves without any human intervention. In this lesson, we will learn about the basics of self-driving cars, their benefits, and challenges.

**Section 1: What are Self-Driving Cars?**

Self-driving cars are vehicles that can navigate roads and traffic without any human intervention. They use various technologies like LiDAR, Radar, Cameras, and AI algorithms to sense their environment and make decisions.

**Section 2: Benefits of Self-Driving Cars**

There are several benefits of self-driving cars, including:

- Improved Safety: Self-driving cars can reduce accidents caused by human errors like drunk driving, distracted driving, and drowsy driving.
- Increased Efficiency: Self-driving cars can optimize their routes and reduce fuel consumption, leading to cost savings and reduced emissions.
- Increased Accessibility: Self-driving cars can provide transportation for people who cannot drive, such as the elderly or people with disabilities.

**Section 3: Challenges of Self-Driving Cars**

While self-driving cars have many benefits, there are also some challenges to overcome:

- Regulation: Governments need to create rules and regulations for self-driving cars to ensure safety and fairness.
- Cost: Self-driving cars are expensive to develop and implement, which may limit their widespread adoption.
- Liability: There is uncertainty around who would be held responsible in case of an accident involving a self-driving car.

**Section 4: Practical Examples**

Let's consider a scenario where a self-driving car is approaching a roundabout. The car needs to decide whether to enter the roundabout or continue on the straight road. It uses its sensors and cameras to detect the presence of other vehicles, pedestrians, and cyclists. It then analyzes this data using AI algorithms to determine the safest and most efficient route.

**Section 5: Conclusion**

Self-driving cars are an exciting development in the field of transportation. They have the potential to improve safety, efficiency, and accessibility. However, there are still challenges to overcome, such as regulation, cost, and liability. As we continue to develop and implement self-driving cars, we must carefully consider these challenges and work towards finding solutions.

**Glossary**

- LiDAR: Light Detection and Ranging, a remote sensing technology that uses laser beams to measure distances and create digital elevation models.
- Radar: Radio Detection and Ranging, a system that uses radio waves to determine the range, angle, or velocity of objects.
- AI: Artificial Intelligence, the simulation of human intelligence processes by computer systems. These processes include learning, reasoning, and self-correction.

**Conclusion**

In this lesson, we learned about the basics of self-driving cars, their benefits, and challenges. We also explored a practical example of how a self-driving car might navigate a roundabout. As we continue to develop and implement self-driving cars, it is essential to consider the challenges and work towards finding solutions. By doing so, we can harness the potential of self-driving cars to improve our lives and the world around us.


text: since 1988. Pisano’s research, teaching, and consulting have focused on technology strategy, the management of innovation and intellectual property, competitive strategy, and manufacturing and outsourcing strategy.), one of the most widely cited publications in economics and business since 1995., Pfizer,.

source: refinedweb

textbook:
Lesson: The Importance of Research in Business

Introduction:
Research is an essential part of any business. It helps businesses to understand their customers, competitors, and market trends. It also helps them to make informed decisions and improve their products and services. In this lesson, we will learn about the importance of research in business and how it can benefit a company.

Section 1: Understanding Research in Business

Topic 1: What is Research?
- Research is the process of collecting, analyzing, and interpreting data to gain insights and make decisions.
- It involves gathering information from various sources such as surveys, interviews, observations, and secondary sources like books, journals, and online databases.

Topic 2: Why is Research Important in Business?
- Research helps businesses to identify their target audience, understand their needs and preferences, and develop products and services that meet those needs.
- It also helps businesses to stay ahead of their competitors by identifying market trends and consumer behavior.
- Research can also help businesses to reduce risks by testing new products or services before launching them in the market.

Section 2: Types of Research in Business

Topic 1: Primary vs. Secondary Research
- Primary research involves collecting data directly from the source, such as conducting surveys or interviews.
- Secondary research involves using existing data from sources like government reports, industry publications, or academic journals.

Topic 2: Quantitative vs. Qualitative Research
- Quantitative research involves collecting numerical data that can be quantified and analyzed using statistical methods.
- Qualitative research involves collecting non-numerical data, such as opinions, attitudes, or experiences, which can be analyzed using qualitative methods like content analysis or thematic analysis.

Section 3: Conducting Research in Business

Topic 1: Developing a Research Plan
- A research plan outlines the objectives, methodology, and timeline for conducting research.
- It includes identifying the research question, selecting the appropriate research method, and determining the sample size and data collection methods.

Topic 2: Collecting and Analyzing Data
- Collecting data involves using various methods such as surveys, interviews, observations, or secondary sources.
- Analyzing data involves using statistical methods to summarize, describe, and interpret the data to answer the research question.

Section 4: Applying Research in Business

Topic 1: Making Informed Decisions
- Research helps businesses to make informed decisions by providing insights into customer needs, market trends, and competitor strategies.
- By using research data, businesses can identify opportunities and risks and make decisions based on evidence rather than assumptions.

Topic 2: Improving Products and Services
- Research helps businesses to understand their customers' needs and preferences, allowing them to develop products and services that meet those needs.
- By conducting user testing or focus groups, businesses can gather feedback on their products and services and make improvements based on customer input.

Glossary:
- Research: The process of collecting, analyzing, and interpreting data to gain insights and make decisions.
- Primary research: Collecting data directly from the source, such as conducting surveys or interviews.
- Secondary research: Using existing data from sources like government reports, industry publications, or academic journals.
- Quantitative research: Collecting numerical data that can be quantified and analyzed using statistical methods.
- Qualitative research: Collecting non-numerical data, such as opinions, attitudes, or experiences, which can be analyzed using qualitative methods like content analysis or thematic analysis.

Conclusion:
In conclusion, research is an essential tool for businesses to understand their customers, competitors, and market trends. By conducting research, businesses can make informed decisions, improve their products and services, and stay ahead of their competitors. The skills gained from this topic can be applied to various scenarios, from conducting market research to analyzing data for decision-making.


text:
Q:

Perl one-liner recipe: Convert lists into 'comma-separated strings in single quotes' OR 'multiple lines' on the fly

Q: How to convert lists in a swift and convenient way on the fly for further processing?
The focus is on a general approach to achive a fully fluent workflow (without the hassle of handling files, pipes, cut & past and so on) for further processing.
Q1) Convert lists into comma-separated strings in single quotes
Mostly needed to INSERT values in databases like MySQL, MariaDB, Oracle and so on.
Convert A B C into  'A','B','C'
Q2: How to convert list of ids into a list of commands using the ids
Mostly needed to repeat a single command with, lets say, multiple process numbers in order to terminate numerous isakmp sessions (VPN) on a Cisco router due to a lack of shell-capabilities (like for-loops or xargs) on the IOS command line (despite the fact it could be achived using the Cisco IOS tclsh).
Convert 23828 11281 22873 3765 1234 into
clear crypto isakmp 23828
clear crypto isakmp 22873
clear crypto isakmp 11281
clear crypto isakmp 22873
clear crypto isakmp  3765
clear crypto isakmp  1234

Addtion to the main focus about this question
I am fully aware about the risk of SQL injection attacks. But security is not the point here, as I know what kind of data my lists carry. The main focus is to have a more generic approach to convert lists on the fly, while being as much flexible as possible. Certainly, some tasks can be better achieved using the appropriate tool like sed, awk, tr, cut or whatever tool buzz around. Unfortunately, everytime choosing the best tool for a specific task you have to fiddle around with the syntax, switches and aside how the tool work. This is exactly the hassle I want to avoid having a more generic approach at hand.
Hence, bear the topic in mind: Calling a Perl one-liner just by pressing a keystroke which can be easily adjusted/edited in the shell before executing it. My approach - see the answer by myself and this as a side node - fulfills exactly this requirement.
So, it could be a good idea to read my answer before just posting a solution or suggestion to question. ;-)

A:

Both can be done quickly and easily using a short perl one-liner.
A1: Build one string (i. e. one single line) with comma-separated strings in single quotes
First create a list to be used in the following (SQL) examples:
cat > list.txt <<EOF
A
B
C
D
EOF

Or in Perl style:
perl -le 'print foreach (A..D)' > list.txt

Create the comma separated list with single quoted strings:
In order to avoid struggling with bash's interpreation of single quotes use the two-digit hex ASCII value \x27 for the single quote < ' >.
perl -e 'print join ",", map { chomp; qq(\x27$_\x27) } <>' list.txt     # 'A','B','C','D'

Same principle, just using the octal ASCII value \047:
 perl -e 'print join ",", map { chomp; qq(\047$_\047) } <>' list.txt    # 'A','B','C','D'

For other purposes (non SQL) where double quotes are needed:
 perl -e 'print join ",", map { chomp; qq("$_") } <>' list.txt          # "A","B","C","D"

In case #, ; or : is needed as separator, just replace the , within the double-quotes of  join ",", into what is required.
For example:
join "#",
join ";",
join ":",
As in most cases lists are taken by cut & paste from somewhere else. So, the usage of pbpaste on Mac OS X | macos can substantially shorten the workflow. btw: Any hint for an equivalent Linux command would be highly appreciated. To test the following example first fill the clipboard with the above created list: cat list.txt | pbcopy
 pbpaste | perl -e 'print join ",", map { chomp; qq(\x27$_\x27) } <>'

Even shorter; replace the clipboard's content with the transformed list on the fly using pbcopy:
 pbpaste | perl -e 'print join ",", map { chomp; qq(\x27$_\x27) } <>' | pbcopy

In order to having it at hand when needed (e. g. by pressing ctrl + x + c ~ c to convert), just write this line to $HOME/.inputrc
"\C-xc": "pbpaste | perl -e 'print join ",", map { chomp; qq(\x27$_\x27) } <>' | pbcopy"

Activate the key-binding (see readline or the many questions tagged readline to learn more):
 bind -f $HOME/.inputrc     # read/activate settings
 bind -s                    # show key-bindings

Now just hit ctrl + x + c for a fully automated conversion of your SQL INSERT Values.
For the sake of completeness some annotations about SQL-quoting
Excerpt taken from this very good clarification about quotes and backticks: Single quotes should be used for string values like in the VALUES() list. Double quotes are supported by MySQL for string values as well, but single quotes are more widely accepted by other RDBMS, so it is a good habit to use single quotes instead of double quotes.
A2: Create a command list (i. e. many lines) from a list (e. g. process numbers)
This approach builds - in contrast to A1 - multiple lines (a repetition of commands with process ids).
Again: First create a list to be used for the following (Cisco) example:
perl -le 'print foreach (1000..1010)' | pbcopy

In reality copy the real process ids to the clipboard; after that transform the plain list of numbers into the appropriate command list:
pbpaste | perl -wle 'while (<>) {chomp; print "clear crypto isakmp $_"}'

This gives:
clear crypto isakmp 1000
clear crypto isakmp 1001
clear crypto isakmp 1002
clear crypto isakmp 1003
clear crypto isakmp 1004
clear crypto isakmp 1005
clear crypto isakmp 1006
clear crypto isakmp 1007
clear crypto isakmp 1008
clear crypto isakmp 1009
clear crypto isakmp 1010

To have it also at hand when needed (e. g. by pressing ctrl + x + p ~ p for process list), just write this line to $HOME/.inputrc
"\C-xc": "pbpaste | perl -wle 'while (<>) {chomp; print "clear crypto isakmp $_"}' | pbcopy"

source: minipile

textbook:
Lesson: Converting Lists into Comma-Separated Strings in Single Quotes or Multiple Lines on the Fly Using Perl One-Liners

**Objective:** The goal of this lesson is to teach students how to convert lists into comma-separated strings in single quotes or multiple lines on the fly using Perl one-liners.

**Prerequisites:** Students should have a basic understanding of Perl programming and the concept of one-liners. They should also know how to use the command line and navigate directories.

**Introduction:** In many programming tasks, we need to work with lists of data. However, sometimes we need to convert these lists into a different format, such as a comma-separated string in single quotes or multiple lines, for further processing. This can be time-consuming and tedious, especially when dealing with large datasets. In this lesson, we will learn how to use Perl one-liners to quickly and efficiently convert lists into the desired format on the fly.

**Section 1: Converting Lists into Comma-Separated Strings in Single Quotes**

**Question:** How can we convert a list of values into a comma-separated string in single quotes using Perl one-liners?

**Answer:** We can use the `join` function in Perl to concatenate the elements of a list into a string separated by commas and enclosed in single quotes. Here's an example:

```
echo "A,B,C" | perl -lne 'print "'" . join(",", @F) . "'"'
```

This one-liner takes the output of the `echo` command and processes it line by line using Perl. The `perl -lne` option tells Perl to read the input line by line. The `print` command prints the string enclosed in single quotes, which contains the comma-separated list of values obtained from the input.

**Example:** Let's say we have a list of values in a file called `data.txt`. We can use the following one-liner to convert the list into a comma-separated string in single quotes:

```
cat data.txt | perl -lne 'print "'" . join(",", @F) . "'"'
```

**Section 2: Converting Lists into Multiple Lines**

**Question:** How can we convert a list of process numbers into a list of commands using the process numbers?

**Answer:** We can use the `map` function in Perl to iterate over the elements of a list and apply a function to each element. Here's an example:

```
echo 23828 11281 22873 3765 1234 | perl -lne 'print "clear crypto isakmp $_\n"'
```

This one-liner takes the output of the `echo` command and processes it line by line using Perl. The `perl -lne` option tells Perl to read the input line by line. The `print` command prints the string containing the command that uses the current element of the list as the process number.

**Example:** Let's say we have a list of process numbers in a file called `processes.txt`. We can use the following one-liner to convert the list into a list of commands:

```
cat processes.txt | perl -lne 'print "clear crypto isakmp $_\n"'
```

**Conclusion:** In this lesson, we learned how to use Perl one-liners to convert lists into comma-separated strings in single quotes or multiple lines on the fly. We covered two scenarios: converting a list into a comma-separated string in single quotes and converting a list of process numbers into a list of commands. These techniques can be applied to many other scenarios where we need to manipulate lists in a quick and convenient way.


text:
SHANGHAI: China's spoilt generation of single children is rapidly becoming overweight, a report shows, while their parents are also growing obese faster than any other country apart from Mexico.

There has been a 25 per cent rise in obesity in Shanghai's primary school children over the past decade, with 13 per cent overweight and almost half of those also obese, said the report from Jiao Tong University.

Epidemic ... obesity has risen in the past decade. Credit:AP

Officials have blamed China's rush to emulate Western culture, the plethora of fast food outlets and the tendency of parents in one-child families to express their affection through food.

''The kids have a bad diet, a sedentary lifestyle and very little knowledge about sports,'' said Paul French, the author of Fat China, a book about China's changing diet.

textbook:
Lesson: Understanding the Causes and Consequences of Obesity in Shanghai

Introduction:
Obesity is a global health problem that has been on the rise in recent years. In this lesson, we will explore the causes and consequences of obesity in Shanghai, China. We will examine the factors that contribute to obesity, such as diet, physical activity, and cultural norms. We will also discuss the health risks associated with obesity and the steps that individuals and communities can take to prevent and manage this condition.

Section 1: Understanding Obesity

**Definition:** Obesity is a medical condition characterized by excess body fat that increases the risk of health problems such as heart disease, diabetes, and certain cancers.

**Causes:** There are several factors that contribute to obesity, including genetic factors, lifestyle choices, and environmental factors. In Shanghai, some of the contributing factors include the rapid westernization of the diet, the availability of fast food, and a sedentary lifestyle.

**Consequences:** Obesity can lead to several health problems, including high blood pressure, high cholesterol, type 2 diabetes, and heart disease. It can also lead to social and psychological issues, such as stigma and discrimination.

Section 2: Understanding the Obesity Epidemic in Shanghai

**Statistics:** According to a report from Jiao Tong University, there has been a 25% rise in obesity in Shanghai's primary school children over the past decade.

**Factors:** The rise in obesity in Shanghai can be attributed to several factors, including the westernization of the diet, the availability of fast food, and the tendency of parents to express their affection through food.

**Solutions:** To address the obesity epidemic in Shanghai, several measures can be taken, such as promoting healthy eating habits, increasing physical activity, and educating parents and children about the dangers of obesity.

Section 3: Preventing and Managing Obesity

**Prevention:** Individuals can prevent obesity by maintaining a healthy diet, engaging in regular physical activity, and limiting sedentary behavior. Communities can also play a role in preventing obesity by providing access to healthy food options and safe places for physical activity.

**Management:** For individuals who are already obese, managing the condition involves making lifestyle changes, such as adopting a healthy diet and engaging in regular physical activity. In some cases, medical intervention may be necessary, such as medication or surgery.

Conclusion:
Understanding the causes and consequences of obesity in Shanghai is crucial in addressing this global health problem. By promoting healthy eating habits, increasing physical activity, and educating individuals and communities about the dangers of obesity, we can work towards preventing and managing this condition.


text: Agile Moves to the Broker Buddha platform.. Pennsylvania-based Agile Insurance Services relies on a consultative, collaborative approach to deliver tailored coverage. It also constantly seeks out solutions to improve the insurance process for its clients, and turned to Broker Buddha to transform its renewal and application process.. “Completing applications can be an administrative challenge for everyone, and create road blocks on the way to securing the best policy in a timely fashion,” noted Zach Frederick, Chief Operating Officer at Agile. “With Broker Buddha, we have streamlined the information gathering process, and our customers aren’t struggling with complex forms or clunky PDFs.”. Agile is one of many new additions to our roster at Broker Buddha, as more agencies look for insurtech solutions that deliver true ROI. If you want to learn how our software can help your agency, schedule a demo on our calendar.. Welcome Agile Insurance Services!. Published on:. Friday, March 5, 2021

textbook:
Lesson: Introduction to Agile Insurance Services and Broker Buddha Platform
## I. What is Agile Insurance Services?
Agile Insurance Services is an insurance agency based in Pennsylvania that offers tailored coverage to its clients through a consultative and collaborative approach. They are always looking for solutions to improve the insurance process for their clients.
## II. What is Broker Buddha Platform?
Broker Buddha is an insurtech platform that helps insurance agencies like Agile Insurance Services to streamline their renewal and application process. It eliminates the need for complex forms and clunky PDFs by providing a simple and efficient way to gather information from customers.
## III. How does Broker Buddha Platform help Agile Insurance Services?
By using Broker Buddha Platform, Agile Insurance Services has been able to streamline the information gathering process for their customers. This means that their clients no longer have to struggle with complex forms or clunky PDFs when applying for insurance. This has resulted in faster turnaround times and better customer satisfaction.
## IV. Conclusion
In conclusion, Agile Insurance Services has partnered with Broker Buddha Platform to improve their insurance process for their clients. By using this insurtech solution, they have been able to streamline the application process and provide a better experience for their customers. This demonstrates the importance of staying up-to-date with the latest technology and insurtech solutions to remain competitive in the insurance industry.


text:
Disruption of the epilepsy KCNQ2 gene results in neural hyperexcitability.
Benign familial neonatal convulsion (BFNC) is a common idiopathic epilepsy with autosomal dominant inheritance. Recently, two novel voltage-dependent potassium channel genes, KCNQ2 and KCNQ3, were identified by positional cloning as being responsible for BFNC. Heterotetramers of the products of these genes form M-channels and regulate the threshold of electrical excitability of neurons. We disrupted the mouse KCNQ2 gene via gene targeting to study the relationship between KCNQ2 and epilepsy. Homozygous pups (KCNQ2 -/-) died within a few hours after birth owing to pulmonary atelectasis that was not due to the status of epileptic seizures, although their development was morphologically normal. Heterozygous mice had decreased expression of KCNQ2 and showed hypersensitivity to pentylenetetrazole, an inducer of seizure. These data indicate that the decreased expression of KCNQ2 might cause a hyperexcitability of the CNS, which accounts for the mechanism of BFNC.

textbook:
Lesson: Understanding Epilepsy and Genetic Mutations

Introduction:
Epilepsy is a neurological disorder that affects millions of people worldwide. It is characterized by recurrent seizures, which are sudden bursts of electrical activity in the brain. In this lesson, we will explore the genetic basis of epilepsy, specifically focusing on the KCNQ2 gene and its role in neural hyperexcitability.

Core Value:
The core value of this lesson is understanding the relationship between genetic mutations and epilepsy. By studying the KCNQ2 gene, we can gain insights into how genetic mutations can lead to neural hyperexcitability and contribute to the development of epilepsy.

Section 1: Introduction to Epilepsy
- What is epilepsy?
- How common is epilepsy?
- What causes epilepsy?

Section 2: The KCNQ2 Gene and Neural Hyperexcitability
- What is the KCNQ2 gene?
- What is the role of the KCNQ2 gene in neural hyperexcitability?
- What is the relationship between the KCNQ2 gene and epilepsy?

Section 3: Genetic Mutations and Epilepsy
- What is a genetic mutation?
- How can genetic mutations contribute to epilepsy?
- Can genetic mutations be inherited?

Section 4: Practical Examples
- How does the KCNQ2 gene contribute to benign familial neonatal convulsion (BFNC)?
- Can other genetic mutations contribute to epilepsy?
- How can understanding genetic mutations help in the treatment of epilepsy?

Glossary:
- Epilepsy: A neurological disorder characterized by recurrent seizures.
- Neural hyperexcitability: A condition where neurons in the brain become overly sensitive to stimuli, leading to increased electrical activity.
- Genetic mutation: A change in the DNA sequence that can be passed down from generation to generation.
- KCNQ2 gene: A gene that codes for a protein involved in regulating electrical activity in the brain.

Conclusion:
Understanding the genetic basis of epilepsy is crucial for developing effective treatments and interventions. By studying the KCNQ2 gene and its role in neural hyperexcitability, we can gain valuable insights into the mechanisms underlying epilepsy. As we continue to uncover more about the genetic basis of epilepsy, we can work towards developing targeted therapies that address the root cause of the disorder.


text:
Q:

Multiple Components of the same type, accessing a shared Resource in Angular 2

I'm fairly new to Angular, so i just need to clarify on something that has to do with accessing data, that are placed within a Service by multiple instances of a Component.
My question, mostly comes from the fact that all the angular examples i have seen over the internet or the documentation are basic examples, passing on string messages and not segments of Arrays.
Okay to start with, the basic architecture of the App is this:
(App-root)
(Child-1) | (Child-2) | ... | (Child-n)|
I have my AppComponent and nested inside the HTML template are some ChildComponents, which are created with an *ngFor.
I used *ngFor because i won't know from the beginning of the app, the exact number of ChildComponents that i will have to create. Let's say that i will be getting that number from a JSON file after an API call.
The JSON file from the API call, has also certain information in the format of :
[
{info for ChildComp},
{info for ChildComp},
{info for ChildComp}
]

(As you can see the number of the ChildComponents is the length of the JSON Array.)
The solution that i have thought of, for my first problem, is getting the data from the JSON in a Service, which can be accessed through out the whole application, but then i ran into the next problem:
How can i distribute the objects found within the array of the JSON file, to the ChildComponents and keeping track which Child got which data...
I tried using the @input method from the parentComponent, but the problem is that i don't want to pass on the whole Array, just parts of it and i would like to keep track of what is being passed over, so that i know the ChildComponents got their share of the data and no duplicates are to be found(except if the {info for ChildComp} is duplicated).
To me it seems as a parallel resource access problem, but the thing is that i haven't found a way to separate the generated ChildComponents and grant them access.
Your views on this problem will be much appreciated and welcome.
(i haven't posted code due to the fact that i haven't implemented anything yet and i am still stuck at the app component mapping stage)

A:

@ViewChildren -> Do-able but it gets really messy when there's DOM changes involved, especially when you get the "Expression has changed after it was checked" error...
Shared Service and emitting a Subject value -> Nice clean way but a bit messy around the part of indexing objects.
*ngFor and @Input passing on Index and other data -> Best solution up to the moment!!
Using Resolvers -> Great aproach, but only when you have the data ready and do not want it on demand.

textbook:
ng the data from the API call and storing it into a Service. Then, i will inject that service into each of my ChildComponents, so that they can access the information that they need.
However, i am a bit confused about how to handle the sharing of the data, among the multiple instances of the ChildComponents.
I don't want to create a new instance of the data for each ChildComponent, because that would mean that i would have n instances of the same data, which would be redundant and inefficient.
What i want to do, is to have one single instance of the data, and share it among all the ChildComponents.
So, my question is:
How can i achieve this in Angular 2?
Do i need to use the OnPush change detection strategy, to avoid multiple instances of the data being created?
Or is there a better way to achieve this?
Thank you very much for your time and help!


text: 1913, San Pedro, Argentina. - 1982, Paris, France. After studying at the School of Fine Arts in Buenos Aires, Alicia Penalba moved to Paris in 1948. For three years she worked alongside the Russian Cubist sculptor and painter, Ossip Zadkine, in his workshop where she was inspired by his abstract sculptural works. Her first solo show came in 1957, and two years later she took part in Documenta II in Kasel and in 1968 she exhibited in Totems et Tabous, alongside fellow Latin American artists Wifredo Lam and Roberto Matta organised by the Musée d'Art Moderne de la Ville de Paris.. In the later 1960s and early 1970s Penalba started making jewellery in Paris that were produced in numbered editions first by F&F Gennadi and later by Artcurial. According to her then assistant, the sculptress Hedva Ser, Penalba would use the soft doughy centre of her morning croissant as her modelling agent - it is even possible to see the impressions of the stretched dogs on the finished pieces.

textbook:
Lesson: The Life and Works of Alicia Penalba

Introduction:
Alicia Penalba was an Argentinian sculptor who lived between 1913 and 1982. She is known for her abstract sculptures that were inspired by the works of Russian Cubist sculptor and painter, Ossip Zadkine. In this lesson, we will learn about Penalba's life, her works, and her contribution to the art world.

Section 1: Early Life and Education

Topic: The Life of Alicia Penalba

Theoretical Concept: Biography

Practical Example: Create a timeline of Penalba's life, including her birth, education, and major milestones in her career.

Questions and Answers:
1. When and where was Penalba born?
Answer: Penalba was born in San Pedro, Argentina, in 1913.

2. What was her education like?
Answer: Penalba studied at the School of Fine Arts in Buenos Aires.

3. When did she move to Paris?
Answer: Penalba moved to Paris in 1948.

Section 2: The Works of Alicia Penalba

Topic: The Sculptures of Alicia Penalba

Theoretical Concept: Abstract Sculpture

Practical Example: Analyze one of Penalba's sculptures, focusing on its form, texture, and color.

Questions and Answers:
1. What materials did Penalba use in her sculptures?
Answer: Penalba used a variety of materials in her sculptures, including stone, wood, and bronze.

2. How would you describe the style of Penalba's sculptures?
Answer: Penalba's sculptures are abstract, meaning they do not represent any specific object or person. They are often characterized by their organic forms, smooth surfaces, and bold colors.

Section 3: The Contribution of Alicia Penalba to the Art World

Topic: Penalba's Impact on the Art World

Theoretical Concept: Influence

Practical Example: Discuss how Penalba's work influenced other artists and movements in the art world.

Questions and Answers:
1. How did Penalba's work influence other artists?
Answer: Penalba's abstract sculptures were influential in the development of modern sculpture, particularly in Latin America. Her work was also exhibited alongside that of other prominent artists, such as Wifredo Lam and Roberto Matta, and was included in major international exhibitions like Documenta II in Kasel.

2. How did Penalba's work contribute to the art world?
Answer: Penalba's sculptures helped to establish the reputation of Latin American artists on the international stage and paved the way for future generations of artists to explore abstract forms and techniques.

Glossary:
- Biography: A written account of a person's life
- Abstract Sculpture: A sculpture that does not represent any specific object or person
- Influence: The power to change or affect someone or something

Conclusion:
In this lesson, we learned about the life and works of Alicia Penalba, an Argentinian sculptor who made significant contributions to the art world. We explored her early life and education, analyzed her abstract sculptures, and discussed her impact on the art world. By studying Penalba's work, we can gain a deeper understanding of the history of modern sculpture and the importance of artistic expression.


text: Marine communication involves ship-to-ship and ship-to-shore communication. Two of the methods used to communicate at sea include navigation lights and lighthouses.. Click on the images below to learn more about how each method works and the history behind their use.. Designed by Langara Design Formation students Aaron Phillip, Ana Rivera, Brooke Dunbar, Lara Torres and Zoey Nguyen in collaboration with the VMM curatorial team

textbook:
Lesson: Introduction to Marine Communication
## I. Overview
In this lesson, we will learn about marine communication, which is the process of transmitting information between ships and shore stations. We will explore two methods of marine communication: navigation lights and lighthouses. By the end of this lesson, you will be able to understand the importance of marine communication, identify different types of navigation lights, and explain the role of lighthouses in maritime safety.
## II. Navigation Lights
Navigation lights are visual signals that help ships identify other vessels, obstacles, and hazards on the water. They are essential for safe navigation, especially during low visibility conditions such as fog or nighttime. There are specific rules and guidelines for using navigation lights, which are established by the International Association of Lighthouse Authorities (IALA).
### A. Types of Navigation Lights
1. Anchor lights: These are red lights that are displayed when a vessel is anchored.
2. Stern lights: These are green or red lights that are displayed at the back of the vessel.
3. Port and starboard lights: These are green and red lights that are displayed on both sides of the vessel.
4. Masthead lights: These are white lights that are displayed at the top of the vessel's mast.
5. All-around lights: These are yellow or white lights that are displayed on both sides of the vessel and at the stern.
### B. Navigation Light Rules
1. The lights must be visible in all directions.
2. The lights must be positioned at an height that is higher than the sidelights.
3. The lights must be visible from a distance of at least 2 miles.
4. The lights must be visible in fog, smoke, or rain.
### C. Examples of Navigation Lights
1. A vessel anchored in a harbor would display a red anchor light.
2. A vessel underway would display a green or red stern light, depending on whether it is moving in or out of traffic.
3. A vessel approaching another vessel from either side would display a green or red port or starboard light, respectively.
4. A vessel underway would display a white masthead light.
5. A vessel engaged in fishing would display an all-around yellow or white light.
## III. Lighthouses
Lighthouses are structures that are built on coastal locations to warn ships of danger and guide them safely to their destinations. They are equipped with lighting systems that emit beams of light that can be seen for miles. The first lighthouse was built in ancient Egypt around 600 BC, and since then, they have become an essential part of maritime safety.
### A. Types of Lighthouses
1. Tower lighthouses: These are tall structures that are built on land or on an offshore location.
2. Lightvessels: These are vessels that are converted into floating lighthouses.
3. Buoyant lighthouses: These are buoys that are equipped with lighting systems.
### B. Lighthouse Signals
Lighthouses use different types of signals to warn ships of danger and guide them safely to their destinations. These signals include:
1. Fixed white light: This signal indicates that the water is deep and safe for navigation.
2. Flashing white light: This signal indicates that there is a hazard ahead, such as a reef or shoal.
3. Red light: This signal indicates that there is a danger to the left of the vessel.
4. Green light: This signal indicates that there is a danger to the right of the vessel.
5. Flashing red light: This signal indicates that there is a danger ahead, such as a rocky outcropping.
## IV. Conclusion
In conclusion, marine communication is essential for safe navigation at sea. Navigation lights and lighthouses are two important methods of marine communication that help ships identify other vessels, obstacles, and hazards on the water. By understanding the importance of marine communication and the different types of navigation lights and lighthouse signals, we can improve maritime safety and prevent accidents at sea.


text: The Nature Education Centre sells and lends out natural history specimens and kits to it's members so that children are encouraged to study animals and their habitats by coming into direct contact with them.. The Centre, which is run as a non-profit organisation, is administered by a Committee drawn from education and animal management fields and was set up as a project by the South Australian Science Teacher's Association.. "I learnt that frogs breathe through their skin.". Kimberly. "I learnt that the bettong is nocturnal.". Courtney. "I liked Luther the snake!". Emily

textbook:
Lesson: Introduction to Natural History Specimens and Kits

## Section 1: What are Natural History Specimens and Kits?

Natural history specimens are physical objects that represent living organisms or their remains. These can include animal skeletons, preserved insects, plant pressings, and other items that help us learn about nature. Kits are collections of these specimens, along with educational materials, designed to teach children about the natural world.

## Section 2: Why Study Natural History with Specimens and Kits?

Studying natural history with specimens and kits is an excellent way to learn about animals, their habitats, and the world around us. By coming into direct contact with natural history specimens, we can gain a better understanding of how these organisms live and interact with their environment. This hands-on approach to learning can also spark curiosity and interest in science, leading to a lifelong passion for discovery and exploration.

## Section 3: How do I Use Natural History Specimens and Kits?

There are many ways to use natural history specimens and kits in your studies. Here are some ideas:

1. Observe and Record: Take time to carefully observe each specimen and record your observations in a notebook or journal. You can also draw or take photographs of the specimens to help you remember details.

2. Compare and Contrast: Compare different specimens to see how they are similar or different. For example, you could compare the skeletons of different animals to see how their bone structures are adapted for different functions.

3. Conduct Experiments: Design and conduct experiments using natural history specimens and kits to test hypotheses and learn more about the natural world. For example, you could experiment with different types of soil to see how it affects plant growth.

4. Create Projects: Use natural history specimens and kits to create projects such as models, dioramas, or even your own museum exhibit.

## Glossary:
- Natural history: The study of living organisms and their interactions with the environment
- Specimens: Physical objects representing living organisms or their remains
- Kits: Collections of specimens and educational materials
- Curiosity: A strong desire to learn or know something
- Exploration: The act of investigating an unfamiliar area or topic

## Conclusion:
In this lesson, we learned about natural history specimens and kits, why they are useful for studying nature, and how to use them in our studies. By incorporating these resources into our learning, we can develop a deeper understanding of the natural world and ignite our passion for science.


text: County Gardening and Landscaping. Do you need help in your garden?. 0800 056 2319. Fencing services for the homes, gardens and businesses of Eps Epsom. We also have access to a wide range of fencing products that we can supply as part of the job or, if preferred, we can provide an install or repair only fencing service.. We realise that Epsom has a good choice of fencing contractors, working in Epsom we are confident many will do a good job – So why choose County?. We make sure we fully understand your fencing project, the type of fencing you want, what will look best, easiest to maintain be it in Epsom or further afield. Our fencers are professional, friendly & courteous too.. It wouldn’t be right for “Us” to say we’re Epsom’s best "Fencing Contractors", we’ll let you decide!. We work across Epsom – our work takes us far and wide, not just Epsom. Have a look at some of the Fencing products and services below.

textbook:
Title: Introduction to Fencing Services

## Chapter 1: Understanding Fencing Services

Fencing services refer to the installation, maintenance, and repair of fences around homes, gardens, and businesses. These services are essential for ensuring the security and safety of properties while also enhancing their aesthetic appeal. In this lesson, we will explore the different types of fencing services, their benefits, and how they can be used to improve your property.

## Chapter 2: Types of Fencing Services

There are several types of fencing services available, including:

1. Wooden fences: These are made of wooden planks or posts and are often used for privacy or decoration. They come in various styles, such as picket, panel, and post-and-rail fences.

2. Vinyl fences: These are made of PVC (polyvinyl chloride) and are known for their durability, low maintenance, and resistance to weather and UV rays. They are available in various styles, such as lattice, panel, and post-and-rail fences.

3. Chain-link fences: These are made of steel wire and are commonly used for security purposes in commercial properties. They come in various thicknesses and colors.

4. Aluminum fences: These are made of aluminum and are known for their lightweight, corrosion-resistant, and low-maintenance features. They are available in various styles, such as panel, post-and-rail, and ornamental fences.

5. Iron fences: These are made of wrought iron or cast iron and are known for their strength, durability, and classic appearance. They come in various styles, such as picket, panel, and post-and-rail fences.

## Chapter 3: Benefits of Fencing Services

Fencing services offer several benefits, including:

1. Security: Fences can help prevent unauthorized access to your property, deter theft, and protect your belongings.

2. Privacy: Fences can provide privacy by blocking views and sounds from neighboring properties.

3. Aesthetics: Fences can enhance the visual appeal of your property by defining its boundaries and creating a sense of style.

4. Functionality: Fences can serve practical purposes, such as containing pets or children, providing support for climbing plants, or marking the boundary between two properties.

## Chapter 4: How to Choose the Right Fencing Service

To choose the right fencing service, consider the following factors:

1. Material: Choose a material that is durable, low-maintenance, and suited to your climate and environment.

2. Style: Select a style that complements your property's architecture and overall design.

3. Height: Determine the appropriate height for your fence based on its intended purpose, such as security or privacy.

4. Cost: Compare quotes from different fencing contractors to ensure you get the best value for your money.

5. Reputation: Research the contractor's reputation and track record to ensure they deliver quality work and excellent customer service.

## Chapter 5: Self-Debate Discussion

Is it worth investing in a high-quality fencing service for my property? Why or why not?

## Glossary

- Fencing: A structure made of wood, metal, or other materials used to enclose an area and provide security, privacy, or decoration.
- Fencing services: A range of services related to the installation, maintenance, and repair of fences.
- Fencing contractors: Companies or individuals who specialize in providing fencing services.
- Vinyl: A synthetic polymer used to make various products, such as fences, that are resistant to weather and UV rays.
- Aluminum: A lightweight, corrosion-resistant metal used to make fences that require low maintenance.


text: The learning systems; the Learning Propensity Assessment Device (LPAD) and Instrumental Enrichment (IE). The goal of the LPAD is to identify an individuals learning potential - to literally decipher which cognitive "buttons" need to "pressed" in order to tap into their latent abilities and maximize their learning potential.. The IE cognitive intervention program is comprised of a series of 14 (IE Standard) or 11 (IE Basic, for children age 8 and younger) instruments. They are a collection.. Due to its adaptability and ease of use, the Feuerstein Method is employed in over forty countries around the world, and in a variety of settings. It has not only withstood the test of time, but has proven to be as useful in the classroom as it is in a clinical setting, with the elderly, and as part of vocational training.

textbook:
Lesson: Understanding Learning Systems and Cognitive Interventions

**Introduction**

In this lesson, we will explore two learning systems: the Learning Propensity Assessment Device (LPAD) and Instrumental Enrichment (IE). We will also discuss cognitive interventions and their importance in education.

**Main Topics**

1. Learning Propensity Assessment Device (LPAD)
2. Instrumental Enrichment (IE)
3. Cognitive Interventions

**Sub-Topics**

- Identifying an individual's learning potential
- The role of LPAD in maximizing learning potential
- The components of the IE cognitive intervention program
- The benefits of cognitive interventions in education
- The Feuerstein Method and its applications

**Theoretical Concepts**

- Learning propensity assessment
- Cognitive interventions
- Instrumental enrichment
- The Feuerstein Method

**Practical Examples**

- Case study: A student with dyslexia who uses LPAD to improve reading skills
- Case study: A child with ADHD who benefits from IE cognitive intervention program
- Real-world scenario: How cognitive interventions can improve workplace productivity

**Glossary**

- Learning propensity: The natural ability to learn and acquire new knowledge
- Cognitive intervention: A method that enhances cognitive functioning and improves learning outcomes
- Instrumental enrichment: A cognitive intervention program that develops cognitive flexibility and problem-solving skills
- Feuerstein Method: A cognitive intervention program that uses mediated learning experiences to improve cognitive functioning

**Conclusion**

Understanding learning systems and cognitive interventions is crucial in today's educational landscape. By identifying an individual's learning potential and providing appropriate cognitive interventions, we can help students overcome learning challenges and reach their full potential. The LPAD and IE are two such learning systems that have proven to be effective in enhancing cognitive functioning and improving learning outcomes. By applying these concepts to new problems, we can continue to innovate and improve education for all learners.


text: Web2NewYork @ Gallery Bar. Don’t miss Tuesday’s Web2NewYork networking party at air-conditioned Gallery Bar. Join us for cold drinks, presentations and networking.. ExpoTV, a site focused on user-generated reviews and product demonstrations, has been added as second presenter next to AssociatedContent.. ExpoTV received $6 million funding by Masthead Venture Partners and Prism VentureWorks in December and has presented before at the NY Tech Meetup..

textbook:
Lesson: Introduction to Networking Parties

**Overview**: In this lesson, we will learn about networking parties and why they are important. We will cover the basics of what happens at a networking party, who attends them, and how to make the most out of them.

**Section 1: What is a Networking Party?**

A networking party is an event where people come together to meet new people, share ideas, and form connections. These events are usually organized around a particular industry or interest, such as technology, art, or business.

**Section 2: Who Attends Networking Parties?**

People who attend networking parties come from all walks of life. They may be entrepreneurs, professionals, students, or just people who are interested in meeting new people and learning new things.

**Section 3: How to Make the Most Out of Networking Parties**

To make the most out of networking parties, you should:

1. Dress appropriately - Dressing appropriately for the occasion will help you feel more confident and comfortable.

2. Bring business cards - Business cards are a great way to exchange contact information with others.

3. Be open and friendly - Be approachable and friendly to everyone you meet. You never know who might be able to help you in the future.

4. Listen more than you talk - People appreciate those who listen and ask thoughtful questions.

5. Follow up - After the event, follow up with the people you met by email or social media.

**Section 4: Practical Examples**

Let's say you are attending a networking party for entrepreneurs. You could use this opportunity to:

1. Meet other entrepreneurs who may have similar interests or goals as you do.

2. Learn about new products or services that may benefit your business.

3. Discuss common challenges and find ways to collaborate or support each other.

**Section 5: Conclusion**

Networking parties are important because they provide opportunities for people to connect and form relationships. By attending these events, you can learn about new industries, meet like-minded individuals, and discover new opportunities. Remember to dress appropriately, bring business cards, be open and friendly, listen more than you talk, and follow up after the event.

**Glossary**

- Networking: The act of building relationships and exchanging information with other people.
- Event: A planned public or social occasion.
- Industry: A group of companies involved in the same craft or trade.
- Interest: A feeling of curiosity or concern about something.

**Conclusion**

By attending networking parties, you can expand your knowledge, form new connections, and discover new opportunities. Remember to dress appropriately, be open and friendly, and follow up after the event. The skills you gain from attending networking parties can be applied to many different scenarios and can help you succeed in your personal and professional life.


text:
The right break room supplies go a long way toward energizing your team. Stock up on snacks, bottled water, coffee and tea. Provide cups, plates, napkins, and utensils for meals. How about a remedy for that afternoon headache that pops up? Choose aspirin, pain relievers and other first aid supplies for easy access.

Breakroom Supplies Keep the Office Humming

Breakroom appliances and supplies are essential ingredients for a highly organized and productive office. Browse the wide selection available at Office Depot.

Add extra microwaves, refrigerators and toasters to reduce breakfast and lunchtime jams. Your employees can make a quick breakfast by dropping a bagel in the break room toaster and save time by bringing lunch to work. Give them the option to keep their lunch cool in the refrigerator or heat it in the microwave.

The traditional drip coffee maker is what you find in most, if not all, offices. Choose one that brews just a few cups for a small office…or consider a three-warmer unit for larger offices. Hosting a large event? Buy an urn-sized model that brews coffee for up to 50 guests at once. Many models are programmable to save you time. Simply pour the water and add the coffee before you leave for the day...you'll find it brewed and ready to pour when you arrive the next morning! There’s also a selection of K-Cup models available.

From light to dark roast, decaffeinated to flavored, old-fashioned to organic, you'll find the perfect brew for all your coffee drinkers. Office Depot carries the brands you've loved for decades as well as the "coffee house" blends. Choose from a wide range of quantities to suit the needs of your business…from cases of single-brew packets to jumbo canisters and boxes.

And don’t stop at one flavor! While some people like Columbian coffee, others prefer vanilla or hazelnut, and still others want a cup of decaf or French roast. Make them ALL happy with our huge variety of K-Cup coffees

textbook:
Lesson:
Introduction

Breakroom supplies are essential for any office environment. They help keep employees happy, healthy, and productive. In this lesson, we will explore the importance of breakroom supplies and how they can benefit your workplace.

Section 1: The Importance of Breakroom Supplies

Topic 1: Snacks and Beverages

Snacks and beverages are crucial for keeping employees energized throughout the day. Providing a variety of snacks, such as chips, cookies, and fruit, can help satisfy cravings and prevent employees from leaving the office to buy unhealthy food. Additionally, providing beverages like coffee, tea, and water can help keep employees hydrated and alert.

Topic 2: First Aid Supplies

Accidents happen, and having first aid supplies on hand can help employees feel safe and secure in the workplace. Having bandages, pain relievers, and other essentials can quickly treat minor injuries and prevent them from becoming more serious.

Topic 3: Convenience

Providing convenient breakroom supplies can save employees time and effort. For example, having a microwave and refrigerator can help employees quickly heat up lunches and store leftovers. This convenience can help reduce stress and increase productivity.

Section 2: Benefits of Breakroom Supplies

Topic 1: Improved Morale

Providing breakroom supplies can improve morale and create a positive work environment. When employees feel valued and cared for, they are more likely to feel happy and motivated to work.

Topic 2: Increased Productivity

Breakroom supplies can also increase productivity by helping employees stay focused and energized. Providing snacks and beverages can prevent energy crashes, while first aid supplies can quickly address minor injuries before they become more serious.

Topic 3: Attraction and Retention of Employees

Offering breakroom supplies can also help attract and retain employees. When potential employees see that an office provides snacks, beverages, and first aid supplies, they may be more likely to accept a job offer. Additionally, existing employees may be more likely to stay if they feel valued and cared for.

Section 3: Conclusion

In conclusion, breakroom supplies are an essential part of any office environment. They can improve morale, increase productivity, and attract and retain employees. By providing snacks, beverages, and first aid supplies, you can create a positive work environment that encourages success.

Glossary:
- Breakroom: a room in an office where employees can relax and socialize during breaks
- Microwave: a kitchen appliance that cooks or heats food quickly using microwave radiation
- Refrigerator: a device that keeps food and drinks cold
- Toaster: an appliance that toasts bread or other food

Self-Debate Discussion:

Do you think breakroom supplies are necessary for a productive workplace? Why or why not?


text: It’s empty in here!. {"articleCount":0,"shippingCostsFormatted":"€0.00","subTotalFormatted":"€0.00"}. Service Links. Product Search. KONG Snugga Wubba. Fave toy for my 18wk old puppy: "I bought this as my husky border collie X prefers plush toys, but I wanted something a bit more robust. This is perfect. I bring it out for a treat after a training session and he'll play with it on his own or as an interactive toy with me and the kids....". Delivery in 3-5 working days ...more All prices include tax, additional shipping costs may apply.. - Small. Was €5.99. Now €4.99. Carry on saving. - Large. Was €7.99. Now €6.99. Carry on saving

textbook:
Lesson: Comparing Prices and Making Purchasing Decisions
Introduction:
In this lesson, we will learn about comparing prices and making informed purchasing decisions. We will explore different strategies and techniques for comparing prices, evaluating product features, and identifying the best deals.
Section 1: Understanding Price Comparison
Topic 1: Comparing prices
- What does it mean to compare prices?
- Why is comparing prices important when making purchasing decisions?
- What are some common methods for comparing prices?
- How can you evaluate product features when comparing prices?
- What are some factors to consider when comparing prices?
Section 2: Evaluating Product Features
Topic 2: Identifying the best deals
- What does it mean to identify the best deals?
- How can you identify the best deals when comparing prices?
- What are some factors to consider when identifying the best deals?
- How can you evaluate product features when identifying the best deals?
- What are some common mistakes people make when identifying the best deals?
Section 3: Applying Price Comparison Strategies
Topic 3: Making informed purchasing decisions
- What does it mean to make informed purchasing decisions?
- How can you apply price comparison strategies when making purchasing decisions?
- What are some common mistakes people make when making purchasing decisions?
- How can you avoid these mistakes?
Conclusion:
In conclusion, comparing prices and making informed purchasing decisions is an essential skill that can help you save money and get the most value for your purchase. By understanding the importance of comparing prices, evaluating product features, and identifying the best deals, you can make smarter purchasing decisions and avoid common mistakes. Remember to always consider the factors that matter most to you and use price comparison strategies to find the best deals.


text:
Results in Rose Gold 18Carat Fine Rings without Stones

1-25 of 183

The beautiful ring is made with three different colours of gold, yellow gold, rose gold and white gold, which have been woven together to alternate and replicate all the way around the band. The eternal weaving design symbolises eternity and loyalty.

This is for a stunning antique 18ct rose gold engraved wedding ring. The antique gold has the most delightful, rosy colour, distinctive with gold of a certain age. The box measures Length 32.37mm x width 24.40mm x depth 30.11mm, and is presented in good condition.

This authentic band ring is by Bulgari from the B.Zero1 collection, it is finely crafted from solid 18k rose gold with a high polished finish. It features an 12mm wide band with black marble in between.

It is English hallmarked 18ct and the picture is of the actual ring you are buying, and not just a scan from a catalogue. The ring weighs 5.8 grams, not an estimate, I have just weighed it. The ring size is an L.

Ring Sizes. We have technology that can detect worn jewellery. Jewellery is hallmarked in accordance with United Kingdom hallmarking laws. Jewelco London will replace or repair faulty goods, providing we are advised of the fault upon receipt of the item.

"Can be re-size for free of cost. Gold Weight: 4.10 gms . The weight mentioned is approximate. The weight can vary. Ring Specification. Double your traffic. Metal Purity: 18kt. The images uploaded will not match exactly with the Original Photos as the images are edited .

textbook:
Lesson: Introduction to Gold

Gold is a chemical element with the symbol Au and atomic number 79. It is a soft, dense, yellow-colored metal and is one of the transition metals. Gold has been used as a form of currency, a store of value, and an art medium for thousands of years. In this lesson, we will explore the properties of gold, its uses, and its history.

Section 1: Properties of Gold

Gold is a soft metal that is often used in jewelry due to its attractive color and resistance to tarnish. It is also highly malleable, meaning it can be hammered into thin sheets without breaking. Gold is a good conductor of electricity and is often used in electronic devices. Additionally, gold is a noble metal, meaning it does not corrode or tarnish when exposed to air or water.

Section 2: Uses of Gold

Gold has many uses, including:

1. Jewelry - Gold is often used in the manufacture of rings, necklaces, bracelets, and other pieces of jewelry due to its attractive appearance and durability.
2. Coins - Many countries use gold coins as legal tender, and gold coins are also collected as investments.
3. Dentistry - Gold is used in dental work because it is resistant to corrosion and is biocompatible.
4. Electronics - Gold is used in electronics because it is a good conductor of electricity and does not corrode.
5. Medicine - Gold is used in medicine to treat various conditions, including rheumatoid arthritis and cancer.

Section 3: History of Gold

Gold has been valued for thousands of years and has played an important role in human history. Ancient civilizations such as the Egyptians, Greeks, and Romans used gold as currency and as a symbol of wealth and power. During the Middle Ages, gold was mined in Europe and used to finance wars and other important events. Today, gold is still valued as a form of currency and is traded on global markets.

Section 4: Conclusion

Gold is a unique and valuable metal that has been used for thousands of years in various ways. From jewelry to medicine to electronics, gold has proven to be a versatile and useful material. By understanding the properties of gold and its many uses, we can appreciate this precious metal even more.

Glossary:
- Noble metal: A metal that does not corrode or tarnish when exposed to air or water.
- Hallmark: A mark or set of marks stamped on gold or silver to indicate its purity and origin.
- Malleable: Able to be hammered into thin sheets without breaking.
- Conductor: A substance that allows electricity to flow through it.
- Corrode: To destroy or damage (metal) due to chemical reactions with the environment.
- Tarnish: To become dull or discolored due to oxidation or reaction with the environment.


text: These two are quick and fairly easy, normally. The only tricky part is crossing Indian Brook, which in high water makes these ‘easy’ peaks impassible. I met a new friend at breakfast and convinced him to hike Street & Nye, mainly due to the cool weather being the last good chance for a bit before the El Niño warms things up.. Tom & I had both done long hikes the day before, so we kept a decent but not outlandish pace along this 8-mile out-and-back hike. There is a decent ‘up’ as well as some late gain at the end of the hike, for about 3,000 total vertical feet.. We started late, and these two aren’t known for their views. They were good, but a bit obscured, so these pics are more documenting what was there than anything artistic. It was a beautiful, sunny day.

textbook:
Lesson: Introduction to Hiking

## Section 1: What is Hiking?
Hiking is an outdoor activity that involves walking or trekking on natural trails, often in mountainous or wooded areas. It is a form of exercise and adventure that allows individuals to explore and appreciate the beauty of nature. Hiking can be done alone or with a group, and it requires proper planning, equipment, and physical fitness.

## Section 2: Why Hike?
Hiking offers numerous benefits, including improved physical health, mental well-being, and environmental awareness. Regular hiking can help individuals maintain a healthy weight, increase muscle strength, and improve cardiovascular health. Additionally, spending time in nature can reduce stress, anxiety, and depression, while also fostering a sense of appreciation for the natural world.

## Section 3: How to Prepare for a Hike
To prepare for a hike, individuals should research the trail they plan to hike and gather necessary information such as distance, elevation gain, and difficulty level. They should also pack a backpack with essential items such as water, snacks, a first aid kit, a map and compass, sunscreen, insect repellent, and appropriate clothing layers. It is also important to wear comfortable, sturdy shoes and to inform someone of their planned route and expected return time.

## Section 4: Types of Hiking Trails
There are several types of hiking trails, including:

1. Nature Trails: These trails are typically short and easy, with minimal elevation changes and few technical challenges. They are designed to showcase the natural beauty of an area and may feature interpretive signs or guided tours.

2. Backcountry Trails: These trails are typically longer and more remote, with significant elevation changes and technical challenges such as streams to cross or steep inclines. They may require navigation skills and specialized gear.

3. Scenic Trails: These trails offer stunning views and scenery, often featuring landmarks or natural wonders such as waterfalls or overlooks. They may be short or long, depending on the location.

4. Historic Trails: These trails follow old routes or paths used by indigenous peoples or early settlers. They may offer cultural or historical insights and may require some degree of research or study.

## Section 5: Safety Tips for Hiking
To ensure a safe and enjoyable hiking experience, individuals should follow these safety tips:

1. Stay on the trail: Do not venture off the marked trail, as this can cause damage to the environment and put yourself at risk.

2. Carry plenty of water: Stay hydrated by drinking water regularly throughout the hike.

3. Wear appropriate clothing: Dress in layers, depending on the weather, and wear sturdy shoes that provide good support and traction.

4. Be aware of your limitations: Do not push yourself beyond your physical abilities, as this can lead to injury or exhaustion.

5. Tell someone your plans: Let someone know where you are going and when you expect to be back.

## Glossary:
- Trail: A path or route designed for hiking or walking in natural areas.
- Elevation gain: The amount of vertical distance covered during a hike.
- Technical challenges: Obstacles or difficulties that require specialized skills or equipment to overcome.
- Landmarks: Natural or man-made features that serve as points of reference or interest.
- Overlooks: High points that offer panoramic views of the surrounding landscape.
- Indigenous peoples: Groups of people who inhabited an area before European colonization.

## Conclusion:
Hiking is a fun and rewarding outdoor activity that promotes physical fitness, mental well-being, and environmental awareness. By following the tips and guidelines outlined in this lesson, individuals can safely and responsibly enjoy the many benefits of hiking while exploring the natural world.


text: Comparators - ST LM393M, Low power dual voltage comparator consisting of two independent low voltage comparators designed specifically to operate from a single supply over a wide range of voltages. Operation from split power supplies is also possible. These comparators have a unique characteristic in that the input common-mode voltage range includes ground even when operated from a single power supply voltage. ST LM393M Dual Compartor (SMD)Check stock and price

textbook:
Lesson: Comparators and Their Applications

## Section 1: Introduction

In this lesson, we will learn about comparators and their applications. A comparator is an electronic circuit that compares two voltages or currents and outputs a signal indicating which is larger. Comparators are used in many electronic devices, such as computers, smartphones, and cars.

## Section 2: Theory

A comparator works by comparing two inputs, usually called the positive input and the negative input. The positive input is compared to a reference voltage, usually called the threshold voltage. If the positive input is greater than the threshold voltage, the output of the comparator is high (usually 1). If the positive input is less than the threshold voltage, the output of the comparator is low (usually 0).

## Section 3: Practice

Let's look at an example of how a comparator might be used in a real-world application. Suppose you are building a robot that needs to detect obstacles. You could use a comparator to compare the voltage of an infrared sensor with a reference voltage. If the sensor detects an object, its voltage will be higher than the reference voltage, causing the comparator output to go high, triggering an action.

## Section 4: Glossary

- Comparator: An electronic circuit that compares two voltages or currents and outputs a signal indicating which is larger.
- Threshold voltage: A reference voltage used by a comparator to compare two inputs.

## Conclusion

Comparators are useful electronic components that can be used to detect differences in voltage or current. They have many applications in electronic devices, from detecting obstacles to controlling power supplies. By understanding how comparators work and how they can be used in real-world applications, you can develop useful and practical skills in electronics.


text: Can you guarantee an increase in conversion rate?. No I cannot, since there are many factors involved that I can't control - for example the right implementation, page speed or search engine optimization. What I can guarantee you is, that I use business best-practices with a high potential of increasing your conversion rate.. How many actionable tips do I get?. This differs from website to website / app to app. Usually there are 5-20 actionable tips with a high potential of increasing your conversion rate/reducing your churn rate.. What is the main user journey in an app?. The main user journey describes the steps a user takes to reach his goal. For example, if you use WhatsApp, your main user journey is to text your friends.!.

textbook:
Lesson: How to Improve Conversion Rate
Introduction:
In this lesson, we will learn about the importance of conversion rate and how to improve it. We will cover the following topics:
1. What is conversion rate?
2. Why is conversion rate important?
3. How to improve conversion rate?
4. Actionable tips to increase conversion rate
5. Main user journey in an app
What is conversion rate?
Conversion rate is the percentage of visitors to a website or app who complete a desired action, such as making a purchase or filling out a form. It is a key metric used to measure the effectiveness of a website or app.
Why is conversion rate important?
Conversion rate is important because it directly impacts the bottom line of a business. A higher conversion rate means more revenue and profit. It also helps to increase customer loyalty and reduce churn rate.
How to improve conversion rate?
There are several ways to improve conversion rate, including:
1. Use business best practices: Follow industry standards and best practices to ensure a smooth and seamless user experience.
2. Optimize website speed: A slow website can lead to a high bounce rate and low conversion rate. Ensure that your website loads quickly to keep users engaged.
3. Use A/B testing: Test different versions of your website or app to see which one converts better.
4. Use persuasive design: Use design elements such as colors, fonts, and images to persuade users to take action.
5. Provide social proof: Use reviews, testimonials, and ratings to build trust and credibility with users.
Actionable tips to increase conversion rate
Here are some actionable tips to increase conversion rate:
1. Simplify the checkout process: Remove any unnecessary steps or fields in the checkout process to make it easier for users to complete their purchase.
2. Use clear calls-to-action: Use clear and concise calls-to-action to guide users towards taking action.
3. Offer free trials: Offer free trials or demos to allow users to try your product or service before they buy.
4. Use scarcity tactics: Use scarcity tactics such as limited time offers or limited inventory to create a sense of urgency and encourage users to take action.
5. Personalize the user experience: Use data and analytics to personalize the user experience and provide relevant content and offers.
Main user journey in an app
The main user journey describes the steps a user takes to reach his goal. For example, if you use WhatsApp, your main user journey is to text your friends. The user journey can be broken down into several stages, such as onboarding, exploration, retention, and monetization.
Conclusion
In conclusion, improving conversion rate is crucial for the success of a website or app. By following business best practices, optimizing website speed, using persuasive design, providing social proof, and offering free trials, you can increase conversion rate. Understanding the main user journey in an app is also important to ensure that users can reach their goals easily and efficiently. By applying these techniques, you can improve conversion rate and increase revenue and profit.


text: South Central Village of Clarksville Apartments is a 134-unit senior apartment complex located in Clarksville, Tennessee. It consists of one (1), three story residential building with a partial basement below grade on a 7-acre site. The building is Type I-B construction, and consists of 1 and 2-bedroom units. It was originally built in 1979, and the project based HAP contract was just renewed for 20 years. This property was purchased in March of 2017, and will undergo approximately $6.1 million in renovation.. Finding Solutions - Creating Community - Developing Dreams

textbook:
Lesson: Real Estate Investment and Management

Introduction:
Real estate investment and management is the process of acquiring, developing, and operating properties to generate income and capital gains. This lesson will cover the basics of real estate investment and management, including the different types of properties, how to evaluate them, and how to manage them effectively.

Section 1: Types of Properties
There are several types of properties that can be invested in, including residential, commercial, industrial, and land. Each type of property has its own unique characteristics and risks.

Residential properties include single-family homes, duplexes, triplexes, and apartment buildings. These properties are typically rented out to tenants who pay rent on a monthly basis.

Commercial properties include office buildings, retail spaces, and warehouses. These properties are usually leased to businesses who use the space for their operations.

Industrial properties include factories, warehouses, and other facilities used for manufacturing or distribution. These properties are typically leased to businesses who use the space for their operations.

Land properties include vacant lots, farmland, and undeveloped land. These properties can be held for investment purposes or developed into new properties.

Section 2: Evaluating Properties
To evaluate a property, investors and managers use several metrics, including cash flow, cap rate, and ROI.

Cash flow is the amount of money left over after all expenses have been paid. It is calculated by subtracting the operating expenses from the total revenue generated by the property.

Cap rate is the rate of return on investment, expressed as a percentage. It is calculated by dividing the net operating income by the property's value.

ROI is the percentage return on investment, which takes into account both the cash flow and any appreciation in the property's value.

Section 3: Managing Properties
Once a property has been acquired, it needs to be managed effectively to generate income and increase its value. This includes finding and retaining good tenants, maintaining the property, and keeping up with market trends.

Finding good tenants involves screening potential tenants to ensure they have a good credit history and stable employment. Retaining good tenants involves providing excellent customer service and addressing any maintenance issues promptly.

Maintaining the property involves regular inspections, repairs, and upkeep. This includes fixing any damages, cleaning common areas, and ensuring that the property is safe and habitable.

Keeping up with market trends involves staying informed about local real estate conditions, such as average rental rates, vacancy rates, and property values. This information can be used to make informed decisions about rent increases, renovations, and property improvements.

Conclusion:
Real estate investment and management can be a lucrative and rewarding venture, but it requires careful planning and attention to detail. By understanding the different types of properties, evaluating them effectively, and managing them well, investors and managers can generate income and increase the value of their properties over time.

Glossary:
- Cash flow: The amount of money left over after all expenses have been paid
- Cap rate: The rate of return on investment, expressed as a percentage
- ROI: The percentage return on investment, which takes into account both the cash flow and any appreciation in the property's value
- Net operating income: The income generated by a property after all expenses have been paid
- Vacancy rate: The percentage of units that are unoccupied in a given property
- Property value: The market value of a piece of real estate

Self-Debating Discussion:
Why is it important to evaluate properties effectively?
Answer: Evaluating properties effectively is important because it helps investors and managers make informed decisions about which properties to invest in, how much to pay for them, and how to manage them effectively. By understanding the different metrics and market trends, investors and managers can maximize their returns and minimize their risks.


text: JULY 2-8. JULY 2-8; Two Apples for Gore. By JODI WILGOREN. Published: July 9, 2000. As expected, Vice President Al Gore received overwhelming endorsements from the two national teachers unions and enormous ovations when he visited their conventions. Mr. Gore spoke first to the American Federation of Teachers in Philadelphia, then flew to Chicago to address the National Education Association.. The teachers are part of a large labor coalition backing Mr. Gore candidacy, and have been energized by his staunch opposition to vouchers, which would allow public money to be used for private-school tuition. His opponent, Gov. George W. Bush, supports them. JODI WILGOREN

textbook:
Lesson: Understanding News Articles

**Introduction**

In this lesson, we will learn how to read and understand news articles. We will start by understanding the structure of a news article, followed by learning how to identify the main idea, and finally, we will learn how to analyze the information presented in the article.

**Section 1: Understanding the Structure of a News Article**

A news article typically has the following structure:

1. Headline: This is the title of the article, which summarizes the main idea of the story.
2. Byline: This is the name of the journalist who wrote the article.
3. Date: This is the date on which the article was published.
4. Lead: This is the first paragraph of the article, which introduces the story and provides essential background information.
5. Body: This is the main part of the article, which contains additional details and information about the story.
6. Conclusion: This is the last paragraph of the article, which summarizes the main points and provides closure to the story.

**Section 2: Identifying the Main Idea**

The main idea of a news article is the central message or point that the journalist wants to convey to the reader. It is usually stated in the lead or the conclusion of the article. To identify the main idea, ask yourself the following questions:

1. What is the topic of the article?
2. What is the central message or point that the journalist wants to convey?
3. What is the main argument or thesis of the article?

**Section 3: Analyzing the Information Presented in the Article**

Once you have identified the main idea of the article, you can begin to analyze the information presented. Ask yourself the following questions:

1. Who is the target audience of the article?
2. What is the tone of the article? Is it positive, negative, or neutral?
3. What is the evidence presented to support the main idea?
4. Are there any counterarguments or opposing views? If so, how are they addressed?
5. What is the significance of the article? Why is it important?

**Conclusion**

In conclusion, reading and understanding news articles is an important skill that will help you stay informed about current events and issues. By understanding the structure of a news article, identifying the main idea, and analyzing the information presented, you can become a more critical and informed reader.


text: The use of videogames by the military has long be a subject of criticism and curiosity by journalists and those who view games solely as purveyors of entertainment. Now a new trend seems to be starting for application of games to soldiers' lives: as a form of therapy for recovering veterans. The Christian Science Monitor reports on the issue:.. This mirrors a larger trend in videogame design and play for therapeutic and health benefits. Will games soon be used for humanitarian relief efforts as well? Now that people realize games aren't just meant to be fun, it's hard to imagine all the possible iterations for health care in the coming years.. [via The Christian Science Monitor]

textbook:
Lesson: Using Videogames for Therapy

Introduction:
Videogames are no longer just for entertainment. They have become a tool for education, training, and even therapy. In this lesson, we will explore how videogames are being used to help recovering military veterans cope with their experiences.

Section 1: Understanding the Benefits of Videogames for Therapy

Topic 1: What are the benefits of using videogames for therapy?
- Videogames can help recovering veterans process their experiences and emotions.
- Videogames can provide a safe and controlled environment for veterans to deal with trauma.
- Videogames can help veterans develop coping mechanisms and build resilience.

Topic 2: How do videogames provide these benefits?
- Videogames allow veterans to relive their experiences in a controlled environment.
- Videogames can provide a sense of accomplishment and mastery, which can help boost self-esteem and confidence.
- Videogames can also provide social support and a sense of community, which can be helpful for recovering veterans.

Section 2: Examples of Videogames for Therapy

Topic 1: What types of videogames are used for therapy?
- First-person shooter games: These games can help veterans relive their experiences and process their emotions.
- Simulation games: These games can provide a controlled environment for veterans to deal with trauma.
- Role-playing games: These games can help veterans develop coping mechanisms and build resilience.

Topic 2: What are some examples of videogames used for therapy?
- "Call of Duty" - This game has been used to treat post-traumatic stress disorder (PTSD) in veterans.
- "Eye of the Storm" - This game is designed to help veterans cope with trauma and build resilience.
- "Spent" - This game is designed to help homeless veterans understand the challenges they face and find resources for assistance.

Section 3: Applying Videogames for Therapy

Topic 1: How can we apply the benefits of videogames for therapy?
- We can create more games specifically designed for therapy purposes.
- We can integrate videogames into existing therapy programs.
- We can train therapists to use videogames as part of their practice.

Topic 2: What challenges do we face when applying videogames for therapy?
- Some veterans may not be comfortable playing games as part of their therapy.
- Not all games are appropriate for therapy purposes.
- There may be resistance from traditional therapists to incorporate games into their practice.

Glossary:
- Videogames: Electronic games played on a computer or console.
- Post-traumatic stress disorder (PTSD): A mental health condition that can develop after a person has experienced or witnessed a traumatic event.
- Resilience: The ability to bounce back from difficult situations.

Conclusion:
Videogames have proven to be a powerful tool for therapy, especially for recovering military veterans. By providing a safe and controlled environment, videogames can help veterans process their experiences, develop coping mechanisms, and build resilience. As we continue to explore the benefits of videogames for therapy, we can apply these principles to other areas of healthcare and humanitarian relief efforts.


text: This info-graphic helps to understand the effect of vaccines in the health, specially on children. The statistic that shocked me most was 1.5 million: the number of kids under 5 years old who die of vaccine-preventable diseases each year.. Di you know how vaccines work?. Vaccines work by introducing a harmless form of virus or bacterium into a person’s immune system. A healthy person’s body recognizes the foreign antigen as unusual and responds by devising a defense (immunity) against it.. Haemophilus, Pertussis, Measles, Tetanus, Pneumococcal disease and Rotavirus are some of the diseases that are immunized by correct vaccine application. May be for us, we never heard because our country has an efficient vaccination plan, but the truth is that these are killing million children every year ... If you care, share these numbers!

textbook:
Lesson: Introduction to Vaccines

## Section 1: Theoretical Concepts

A vaccine is a substance used to stimulate the body's immune system to produce immunity to a specific disease. Vaccines are usually made from weakened or killed forms of the disease-causing microorganisms, or parts of the microorganism such as proteins. This allows the immune system to recognize the microorganism and learn how to fight it without causing the disease.

## Section 2: Practical Examples

Let's take the example of measles. Measles is a highly contagious viral illness that can cause severe complications, including pneumonia and encephalitis. Before the introduction of the measles vaccine in 1963, an estimated 3-4 million people got measles each year in the United States, and about 400-500 people died from it annually. Today, thanks to the vaccine, measles is considered eliminated in the U.S., meaning that there is no ongoing transmission of the virus.

## Section 3: Real-World Scenarios

In many parts of the world, vaccines are not readily available or affordable. This means that children are at risk of getting sick from preventable diseases. For example, in some countries, polio is still a threat. Polio is a virus that can cause paralysis and even death. However, with the use of vaccines, polio cases have decreased by 99% since 1988.

## Glossary

- Vaccine: a substance used to stimulate the body's immune system to produce immunity to a specific disease
- Immune system: the body's defense against infection and disease
- Antigen: a foreign substance that triggers an immune response in the body
- Microorganism: a living organism too small to be visible with the naked eye, such as a bacterium or virus
- Encephalitis: inflammation of the brain
- Pneumonia: an infection that inflames the air sacs in one or both lungs

## Conclusion

Vaccines are an important tool in preventing disease and saving lives, especially among children. By understanding how vaccines work and the importance of getting vaccinated, we can help protect ourselves and others from preventable illnesses.


text: A HISTORY OF delivering. the highest roi for our clients. in their direct marketing efforts.. Direct mail. Direct mail is a critical part of an integrated marketing campaign. And it is a powerful closer, with the highest response rates of any medium.. The foundation of our campaigns is based on our data accuracy. The money is in the list.. Digital Services. Businesses have quickly learned that digital marketing is a highly effective way to reach and convert target audiences into paying customers. Digital marketing also provides robust tracking and analytics so you can monitor your prospects behavior.

textbook:
Lesson: Introduction to Direct Marketing

### Section 1: What is Direct Marketing?
Direct marketing is a form of advertising that involves communicating directly with potential customers, typically through email, phone, or direct mail. It is a powerful tool for businesses to promote their products or services and build relationships with their customers.

### Section 2: Why is Direct Marketing Important?
Direct marketing is important because it allows businesses to target specific groups of people who are most likely to be interested in their products or services. This helps businesses save money and time by avoiding broad, general advertising campaigns that may not be effective.

### Section 3: How does Direct Marketing Work?
Direct marketing works by identifying potential customers through data analysis and then reaching out to them directly with personalized messages. This can be done through email campaigns, telemarketing, or direct mail. The goal is to create a relationship with the customer and encourage them to take action, such as making a purchase or signing up for a newsletter.

### Section 4: Examples of Direct Marketing
Examples of direct marketing include:
- Email campaigns that offer special discounts or promotions to subscribers
- Telemarketing calls that offer free trials or consultations
- Direct mail pieces that include personalized offers or coupons

### Section 5: Conclusion
Direct marketing is a powerful tool for businesses to connect with potential customers directly. By using data analysis to identify targeted groups and personalized messaging to create relationships, businesses can save money and time while increasing their chances of success.


text: Starting to use BEM for CSS in 2013/14 gave us a distinct boost to quality and performance.. It’s not that we didn’t know how to write modular CSS before. But BEM is like burning down your venue, leaving only low level CSS specificity.. And once you’ve figured out there’s some (element type based) pseudo scope with BEM, you’re about to write even more modular CSS.. As long as CSS does not provide scope, I think BEM is the best workaround we have.. #BEM is all about low level CSS specificity and sort of scope by means of unique CSS classes per element. #b_— DECAF (@_DECAF) 25. Juni 2015. Read more: ‘Why BEM?’ in a nutshell

textbook:
Lesson: Introduction to BEM Methodology

## Section 1: What is BEM?
BEM is an acronym that stands for "Block, Element, Modifier." It is a CSS class naming convention and methodology that helps developers create modular and maintainable front-end code. BEM is not a new concept but has been around since 2010, created by Yandex, a Russian search engine company.

In this lesson, we will cover the following topics:

1. What is BEM?
2. Why use BEM?
3. How to implement BEM in your projects?

## Section 2: Understanding BEM
BEM is a naming convention for CSS classes that separates the stylesheets into reusable blocks, elements, and modifiers. A block is a group of related elements, an element is a single HTML tag, and a modifier is a variation of an element. For example, consider a website with a header section that has a logo, navigation menu, and search bar. The header block would contain all the styles related to the header section, while the logo element would style the text within the logo. A modifier could be used to change the color or size of the logo.

## Section 3: Implementing BEM in your projects
To implement BEM in your projects, follow these steps:

1. Define your blocks, elements, and modifiers.
2. Create unique class names for each block, element, and modifier.
3. Use the class names in your CSS to style your HTML elements.
4. Use BEM methods to organize your CSS into reusable chunks.

## Section 4: Conclusion
BEM is a powerful methodology that can help you create clean, maintainable, and scalable front-end code. By following the BEM methodology, you can reduce the amount of code you need to write and make it easier to understand and modify. As you continue to work with BEM, you will find that it becomes second nature, and your code will become more organized and efficient.


text: Hi everyone,. I’m currently working on a perspective project which is accessible via a public facing IP. I’m using an Apache webserver with a proxy to redirect the traffic to port 8088. This setup works if I want to access the gateway homepage, however, if I configure the proxy with the path to the client login it can’t connect (it displays the webserver homepage instead).. I’ve tried several different configurations of ProxyPass and ProxyPassReverse with no luck. Checking the Apache error and access logs hasn’t provided any insights. Is there anything that needs to be configured on the Ignition side to enable this?. I have the proxy configured as follows - any help would be greatly appreciated.. <VirtualHost *:80>. ProxyPreserveHost On. ProxyRequests Off. ServerName. ServerAlias website.com. ProxyPass /data/perspective/client/project/. ProxyPassReverse /data/perspective/client/project/

textbook:
Lesson: Introduction to Web Servers and Proxies
## Section 1: What is a Web Server?
A web server is a computer system that hosts web applications and responds to requests from users. It sends a response back to the user's web browser, which then displays the requested content.
## Section 2: What is a Proxy?
A proxy is a software or hardware system that acts as an intermediary between a user and the web server. It receives requests from the user, sends them to the web server, and then returns the response back to the user.
## Section 3: How does a Proxy work?
When a user sends a request to a web server, the proxy intercepts the request and forwards it to the appropriate web server. The proxy then receives the response from the web server and forwards it back to the user.
## Section 4: Why use a Proxy?
There are several reasons why someone might use a proxy. One reason is to filter or block content. For example, a school might use a proxy to block social media sites during school hours. Another reason is to improve security by preventing unauthorized access to a network.
## Section 5: Configuring a Proxy
To configure a proxy, you need to know the IP address of the web server and the port number that the proxy is listening on. You also need to specify the path to the client login page.
## Section 6: Troubleshooting Proxy Issues
If you are having trouble configuring a proxy, there are several things you can do to troubleshoot the issue. First, check the Apache error and access logs to see if there are any errors or warnings. Next, check the proxy configuration to make sure it is correct. Finally, test the proxy by accessing the web server directly to see if it is working properly.
## Conclusion
In conclusion, understanding how web servers and proxies work is important for anyone who wants to work with web applications. By following the steps outlined in this lesson, you can configure a proxy and troubleshoot issues as needed.