Why Turtles Produce almost All Female Hatchlings Recently? - Part 2

You may read previous post (Part 1):

- Why Turtles Produce almost All Female Hatchlings Recently? - Part 1

Fig 01- Green turtle as one of endangered species.

Sex ratio of turtle when eggs put in incubator with varies temperatures are following:

- at C 28.5 (F 83.3) degree will produce equally males and females broods.

- above C 30 (F 86) degree produces all females hatchlings

- below C 25 (F 77) degrees produce all males turtle babies.

Then, why temperature become warmer in the sand of the Great Barrier Reef beaches?

Fig 02- Old tower, illustration

Fig 03- Box turtle in the hand

Many scientists have concluded that “climates changes” which relate to increasing of temperature responsible to more females in Great Barrier Reef turtle broods.

In short term, in order to get equal or natural sex ratio of marine turtles, then scientists design:

- lower nest temperatures

- optimal nest temperatures

The resutls are promising. Moreover, hope, world could handle the climate changes in near future.

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Talented Students to Display Their Paintings – Part 2 - Art 4

You may like to see previous post (Part 1):

- Talented Students to Display Their Paintings – Part 1 - Art 4

Fig 01- A cup of ginseng, painted by Hay AnhTon

The first, second and third paintings portrait daily live such as drink a cup of ginseng, have a pet and dancing.

Moreover, these talented students are identified through talented art program by East Baton Rouge Parish School System.

Art programs include:

- visual arts
- music
- theater

Fig 02- A dog, painted by Sydney Goldberg

Fig 03- Dance, painted by Annisa

In term the number of schools in East Baton Rouge Parish School System are following:

- Primary schools, 54
- Middle schools, 16
- High schools, 18

These public schools get funding from several resources:

- local, state and federal governments
- some portion from private resources

Hope, this talented program could produce excellent works in arts, and promote great artists in the near future.

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Special Parking for Low Emission Vehicles - Sign 3

I have known the special signs stand up in the city library parking lots very long time ago.

However, I don’t know the “exact” meaning of these two phrases:

- low emission

- fuel efficient

Fig 01- Sign of parking for low emission and fuel-efficient cars.

I searched through internet to get the meaning and what kind of cars refer to those phrases.

Low emission cars emit low carbon dioxide (CO2) compared to normal car. Electric and hybrid cars are included in this category.

Numerous green cars which are low emission emitter, few examples are:

- Toyota Corolla

- Tesla model 3

- Volvo XC40 T5 Recharge.

- BMW 3 Series 330e.

- Kia e-Niro.

Fig 02- Sky over the roof

Fig 03- White flowers

Fig 04- A sign for low emission car

Fuel efficient refers to fuel consumed per mile. Lower consumption means energy efficiency.

Some fuel-efficient cars include:

- Toyota Yaris 1.5 Hybrid

- Suzuki Ignis 1.2 Dualjet Hybrid

- Volkswagen Up 1.0 75

- Vauxhall Astra 1.6 CDTi 110 Ecoflex

- Renault Kadjar 1.5 dCi 110

- Chevrolet Bolt 2LT

Have you ever parked your car with this sign?

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The Ways in “Caching” for Speeding Up Web Server – Part 3

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

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

- The Ways in “Caching” for Speeding Up Web Server – Part 2

Fig 01- Spring, painted by David Hockney

By configuration file, we have several following advantages:

- web easily accessed

- shorter time to access

- built-in validation mechanisms for both the schema and the form

- and XML in the configuration becomes much more intelligible.

However, there is no the best way to implement cache strategy, so there is possibility to set up catching by mistake.

 Fig 02- Mask, for illustration only

Fig 03- Garage sales at neighborhood, illustration

Fig 04- Felled trees by David Hockney

The wrong set up means browser not able to validate the cached content. Another possibility that page could load wrong content.

In case of hacking the caching server, all users will get negative impacts on their computers.

Several other disadvantages:

- more expensive

- data are stored temporarily

- store capacity not that much

- less proxy updating

- data may loss due to shutdown of computer

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Why Turtles Produce almost All Female Hatchlings Recently? - Part 1

When I was walking with my dad in remote beaches in the tropical country along long time ago, we found turtle eggs in the beaches sometimes.

Off course eggs are hiding in the nests within the sands.

Fig 01- A turtle crossed a little garden, illustration

Number of sea turtle eggs could reach about 200 eggs at one time, but, the number depend very much on species.

As examples, number of eggs at one time from 3 different species:

- Flatback turtle, about 50 eggs

- Leatherback sea turtle, about 110 eggs

- Hawkbill turtle, about 200 eggs

After incubation of 60 days, we did not know the natural sex ratio of male and female turtle hatch-lings.

Fig 02- Just for illustration

Fig 03 – Eggs of sea turtle (credit to Plumlee Gulf Beach Realty)

Fig 04- A shy turtle in the garden

We just guessed equally the same with little bit higher for females as other animals on the earth.

It is stunning to know that scientists found new hatch-lings to have almost all females sex identity in the Great Barrier Reef, Australia.

Why?

Naturally, temperature decide sex ratio of turtles, higher temperature means female more.

On the contrary, lower temperature will cause plenty of males than females turtles.

# To be continued to Part 2

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Talented Students to Display Their Paintings – Part 1 - Art 4

I noticed there are no art gallery or show in public spaces during more than one year of Covid 19 pandemic.

The pandemic makes everybody almost “crazy.”

Fig 01- The sign of student art show.

Recently, our city library showed paintings of talented students. These students come from:

- elementary

- middle school

- high school.

In this posting, I just focus on paintings by high school students, I may post paintings of elementary and middle school students by next times.

The chosen paintings from talented students are displayed on entrance wall of library. 

Fig 02- Skate, painted by Bailey Steven

Some paintings have price tags.

How much the price?

Fig 03- Science and art, Tiffany Pham

Many of them just about US$ 50. Few are couple hundred dollars.

In the last 5 years, we bought one painting only. Good painting from a high school student.

Then, Tiffany Pham’s painting is one of painting examples from a typical high school student at a recent art show.

She tried to describe the power of brain to create city, agriculture and art (music) through her painting.

Other paintings are quite representing of human beings. About their daily interest and activities.

# To be continued to Part 2

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Vaccinated but Mask Up - Sign 2

300 million or more Americans have been vaccinated as of today, and positive cases of Covid 19 have been decreased very much.

With these facts, people should back to normal without masks.

Fig 01- People need to wear mask

However, in entrance of one of our city parks, we saw a big sign:

Mask Up, Baton Rouge!

Until recently, face masks are required in many public spaces include:

- library

- traditional shops or ethnic groceries

- farmer markets

- book stores

- super markets

- banks

- drug stores

Fig 02- Sunset in the corner of our city

Fig 03- Mini palm tree in the bush.

Fig 04- One corner of city at night

We saw “crowd” in many places, but, yes, almost all are wearing mask and have social distances.

Moreover, in our city as of today, people are not encouraged to visit love ones in the following public facilities:

- hospital

- nursing home

- skilled nursing facility

- other residential care facilities

How about in your places or cities?

Are people required to wear mask until today?

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