The Ways in “Caching” for Speeding Up Web Server – Part 1

In database systems, the word “caching” means store something temporarily, then retrieved again for near future use.

As suggested by Price (2011: Web Performance Optimization, Part 1: Web Server Caching) that there are several goals of caching.

Fig 01- Painting by David Hockney, illustration only

The purposes of caching are following:

- Increasing the speed of content delivery.

- Reducing the amount of redundant work

- and putting a file in memory to re-use to save millions of drive accesses.

At the end, caching is supposed to improve server performance.

Moreover, three Ways for “Caching” to speed up Web server performance that are:

1. Via (meta) tags (<meta http-equiv="Expires"...>)

2. Programmatically setting HTTP headers (CGI scripts etc.)

3. Through web server configuration files (httpd.conf)

Fig 02- Public safety, illustration only

Fig 03- Flowers at the garden

First, Kyrnin (2015: Force Your Page to Always Load from the Server Not the Web Cach) mentioned that a meta tag could control browser “caching,” then Web server could be speeding up.

Search engine optimization (SEO) often apply meta tag. The simple reason is to attract people to click our sites. Thus it will affect on traffic and your site ranking.

# To be continued to Part 2

## Previous postings:

- Do You Know these by Catching Fish Species?

- Why Puffin Birds Population are Decreasing?

- How Important Credit Score to Mortgage Rate?

- Can Abnormal Blood Sugar Lead to Seizure? - Diabetes 8

Zinnia Flower and Vincent Van Gogh – Part 1 - Art 3

The sunflower is one of well known flowers painted by a Dutch painter, Vincent Van Gogh.

The cost almost reached US$ 40 million in 1987 auction. It is estimated for about US$ 98 million today.

Fig 01- Zinnia elegans with butterfly

There are two series of Van Gogh’s sunflowers (Tournesols in French) :

- Paris series, 1887

- Arles series, 1888

Paris series was characterized by sunflower lying, while the Arles series was painting of sunflowers in the vase.

There are five well known paintings of sunflowers in the vase which are belong to museums around the globe now days.

Actually, the painter has other flowers as painting objects as reported by Teresa Bernard, 2015: The Flower Paintings of Vincent van Gogh).

Fig 02- Zinia flowers, painted by Van Gogh

Fig 03- Irises flowers, painted by Van Gogh

Fig 04- Sunflowers, painted by Van Gogh

The flowers include:

- irises

- roses

- poppies

- corn flowers

- myosotys

- chrysanthemums and almond blossom

- red poppies and daisies

- pink roses

# Continue to Part 2

## Previous postings:

- The Short Story of Japanese Kino Enigmatic Life – Part 2

- What are Attractive Products Sold by Amazon?

- Would You Like to Try Uber Helicopter?

- What is Hypoxia and How Its Relates to Diabetes? - Diabetes 7

Could Microchips Detect Covid 19 Virus in the Blood? - Part 2 - Virus 39

You may read the previous posting (Part 1):

- Could Microchips Detect Covid 19 Virus in the Blood? - Part 1 - Virus 39

Fig 01- Empty garden in the early morning

In fact, a vaccine such as Biontech - Pfizer contains the following ingredients (What are Ingredients in the Biontech-Pfizer Vaccine? – Virus 33):

- Active ingredient called mRNA

- Lipid

- Sugar

- Salts

Moreover, the Defense Advanced Research Projects Agency (DARPA) have developed a microchip to detect the present of Covid 19 virus in our blood.

Fig 02- Red chili, just for illustration

Fig 03- Mug, just illustration.

By implanting the Microchip under the skin, it will give a signal if virus enter our body.

This is a kind of early warning, make the patients could get further examinations and even early treatments.

Yes, this method might end the pandemic soon.

The question then: will people or army accept it?

What do you think?

# Previous posting:

- Why Income Annuity is Getting Favorite?

- Why 3 billion Birds Have Lost in North America?

- How Lipotoxicity Relate to Diabetes? - Diabetes 6

## Some source of readings:

- Daily Mail, April 12, 2021

- Independent, April 12, 2021

- Money Control, April 13, 2021

Do you Favor to Certain Chicken Egg Colors? - Part 1

I know that chicken eggs have many colors in nature, but 3 colors are stick in my “head” only:

- brown

- green

- white

Fig 01- Several colors of eggs.

What factors determine eggs colors?

Michigan State University Extension (December 29, 2013) said that genetics which relate to breeds are primary factor to decide eggs colors.

Nutritional foods which are consumed by hen may affect on egg colors such as (just few examples):

- water quality

- non-starch polysaccharides

- enzymes

- calcium

- phosphorus

- vitamins

Fig 02- Chicken playing on the yard

Other factors are believed to contribute to colors of chicken eggs:

- general stress

- heat stress

- disease

- production system

- hen’s age

Fig 03- Just for illustration

It is facts that 60 breeds are recorded in the USA, and chicken breeds are estimated hundreds, at least 500 breeds in the world.

Fig 04- Eggs without shells

There are more than 10 common chicken breeds in the USA, some of them are:

- California Gray Chicken

- Brahma Chicken

- Buckeye Chicken

- Holland Chicken

- Delaware Chicken

Hence, not surprising that we might find many different egg’s colors either in the groceries or in the community farmings.

# To be continued to Part 2

## Previous postings:

- Could Medicines Affect on Pancreas to Produce Insulin? - Diabetes 4

- Why Consuming Trash Fish could Help Environmental Protection?

- The oldest human Ancestor is Discovered

- Effect of Metabolic on Beta Cells in the Pancreas - Diabetes 5

Women Equality as Conflict Paradigm Example – Part 3

You may read previous posts (Part 1 and 2):

- Women Equality as Conflict Paradigm Example – Part 1

- Women Equality as Conflict Paradigm Example – Part 2

Fig 01- Peasant women, painted by Vincent Van Gogh

In case of “Women Equality,” it is an example of conflict paradigm, where one group (male) is dominant over another group (female) in a society for long time period.

Moreover, in order to get equality is not easy in the USA, it is a very long time fight.

Even to get voting right, women waited until August 18, 1920 where all American women have the right to vote after Congress passed the 19th amendment.

Fig 02- White flowers at backyard

As reported by Mignucci (2017: Why Do We Celebrate Women’s Equality Day Today? Thank The Fight For The Equal Rights Amendment. Bustle) that just until 1970, congress designed Augustus 26 as “women’s equality day.”

Then, women celebrate their equal rights in the USA every year. 

Fig 03- Roses at backyard

I don’t in other countries: do women have to fight for voting rights and equality?

I believe that fighting for women right in many fronts is continuing until today everywhere, especially in developing countries such as in regions or continent of:

- Asia

- Africa

- Middle East

- South America

# Previous postings:

- Will Electric Cars Take Over Gasoline Car in Near Future?

- Why the Moon Has Thousands of Small Aliens?

- Reliefs on the Largest Buddha Temple in the World, Borobudur – part 2

- Do You Want to Have International Flights for Few Dollars?

Could Microchips Detect Covid 19 Virus in the Blood? - Part 1 - Virus 39

During Covid 19 pandemic, especially at early stage of pandemic wave, we might familiar with many “words” whether to make us confuse, clear (doubtless) or in between.

Fig 01- Improvement of a little garden in our city, just illustration.

Some words include:

- PCR machine test.

- testing kits

- vaccines

- microchip (in the vaccines)

Great developments to detect Covid 19 virus infection recently. The improvements are in terms of:

- accuracy

- shorter time to know the testing results

- cheaper

- easy to find testing sites

Fig 02- Lemon fruit in the backyard.

As of today, we may detect the virus even in our home, free of charge from US government, then our health insurance is planning to send the testing kit 8 times a month soon.

Fig 03- Illustration only

It was several days to even weeks to know the results whether we get infection or free of virus.

Today, we need several minutes only.

Accuracy of detection was improved from about 70% - 90% to nearly 100% now days.

One of “conspiracy theory” suggested a vaccine contain “microchips” to tracks people (citizens) every moves.

Is it true?

# To be continued to part 2

## Previous postings:

- China Turns Military Robots to Help Civilians

- The Butterfly Farm is One of Popular Tourist Destinations in Kentucky

- Why Many Big Cities are Sinking?

- Why Pancreas of Type 2 Diabetic Persons Produce Less Insulin? - Diabetes 3

Using Woods for Fireplace in the Winter – Part 2

You may read previous posting (Part 1)

- Using Woods for Fireplace in the Winter – Part 1

In certain level, the poisonous substance from woods burning may be life threatening

Fig 01- Woods with discount price

The poisonous substances that may come from woods, including:

- Poison Ivy

- Poison Sumac

- Poison Oak

So, what are good woods for burning purposes?.

Some suggested the following:

- birch

- maple

- oak

- ash

- most fruit trees

Fig 02- Illustration only

Fig 03- Oak rocker antique, illustration

These woods are believed to have several advantages:

- giving us a quite longer burning hours, and hotter

- least pitch and sap

- generally cleaner to handle.

In our neighborhood, the price of 1 chord woods (4 feet x 8 feet size) is US$ 150, plus delivery cost for US 50.

Do you know someone who uses woods for heating in the winter or for any purposes?

# Previous Postings:

- The Short Story of Japanese Kino Enigmatic Life – Part 1

- Can America Buy Greenland from Denmark?

- What is the Relationship between Eggs and Diabetes? - Diabetes 2

- Do You Know the Meaning of Your Dreams?

- What colors of Lobsters are Rare in Nature?