Showing posts with label Science. Show all posts
Showing posts with label Science. Show all posts

Saturday, 26 November 2022

Learning Process Based on My Own Experienced – Part 1 – Science 28

During my human medicine study at a college, one of courses was Pathophysiology class (BIOL-4310).

Image 1- Learning process level of Bloom’s Taxonomy 
(credit to Cehdclass)

The last session of the class was the student presentation. I chose pathophysiology of shock from the list of assignment.

Before presentation we were assigned to do research from the journals with the peer reviews, and then we write certain pages of term paper about the assigned topic.

The professor would check the paper before we present it and give some feedback, include comments, suggestions and recommendation for further improvement.

Image 2- Neighborhood, just illustration

Whenever, everything in the "the right tracts", the topic then was ready to be presented.

Image 3- Wrap, Illustration only

Shock is a manifestation of pathological condition rather than diseases as many people know.

I understand that diagnosis and management of shocks are require extensive knowledge and clinical experience.

At the beginning, I identified and retrieved my knowledge in Anatomy and Physiology class about how does our heart work (remembering level).

# To be continued to part 2

## Previous posting:

Tuesday, 15 November 2022

May Tomato Increase Our Brainpower? - Science 27

I always eat tomatoes, not daily, but at least one a week. I love its taste, and know that tomato is good for health.

Image 1- Tomatoes, one of healthy foods

By reading articles, one of them is written by Jerajani, D (2022: 5 Everyday Foods That Are Good for Brain Health!). it is said that tomatoes could improve our brainpower.

Other excellent foods for brain health are:

- spinach
- dark chocolate
- whole grain
- avocado

Image 2- Slices of tomato on Omelet

Just to let you know, we have talked about Avocado as “super food” at previous posts:

Image 3- Tomatoes in the bowl

Then, I myself wonder that: What is brainpower? And why is tomato good for brain health?

Brainpower could be mean as brain ability and capacity in respect to mental, learning, intelligence, comprehend and understand.

Tomato is good for brain health because tomatoes contain two important antioxidants that are beta-carotene and lycopene.

These two antioxidants are needed to prevent brain damage and protect brain cells.

Finally, do you like tomatoes?

# Previous postings:

Thursday, 10 November 2022

The Winter Hummingbird at Our Community – Science 26

Generally, hummingbirds have visited our state by late February to early March and gone by late Summer.

Image 1- Immature Rufous

In case of winter hummingbirds, sure, they will arrive and stay in our areas during winter seasons. Southern states winter is a little bit friendly than frozen winter in northern states.

There are many species of winter hummingbirds, but three the most seen in our neighborhoods:

- Rufous hummingbird
- Calliope hummingbird
- and Allen's hummingbird

Image 2- Flowers which attract hummingbirds

What make us wonder that why does Rufous hummingbird show up early in our neighborhood?

What are factors trigger them to do migration early?

Image 3- A hummingbird sitting on the branch

First, I read it is due to daylight changes. I don’t know whether this reason is true or false. Quite strange for me.

Second, shortage of food resources such as insects, nectar and flower in areas where winter hummingbirds come from.

Finally, severe temperature in northern part of America. Frozen temperature may trigger winter hummingbirds to arrive early in our areas.

# Previous postings:

Wednesday, 26 October 2022

Canadian Geese Live Permanently in Neighborhood – Part 2- Science 23

You may read previous post (Part 1):

- Canadian Geese Live Permanently in Neighborhood – Part 1- Science 23

Image 1- Flock of Canadian geese at a corner of our neighborhood

The Canadian geese was believed to disappear in USA once, then they are surprisingly found in Minnesota in 1950.

Since then, they are introduced and conserved in many states, especially in Northern states across USA.

There are at least two species of Canadian geese which visit or stay in our city, they are:

- Branta canadensis, well known as Canadian geese
- Branta hutchinsii, also recognized as Cackling goose.

Image 2- A geese playing at nearby lake

Image 3- A geese tried to find food.

We mainly found giant Canadian geese in our city, Branta canadensis maxima, with wingspan could reach 7.3 feet (2.2 meter).

Some residents feel intimidating with growing population of Canadian geese in several parts of the city. Male Canadian geese is aggressive during breeding seasons.

Have you encountered Canadian geese during breeding seasons?

What do you think?

# Previous postings:

Sunday, 23 October 2022

What Critters are Consumed by Carnivorous Plants in Louisiana? - Science 25

We have talked about carnivorous plants in Louisiana, you may read the previous post: What is the Reason Specific Plants to Trap Animals? – Science 18

Image 1- Louisiana carnivorous plants

Actually, carnivorous plants, especially smaller ones, favor to consume trapped microorganisms like protozoa or bacteria.

Surprisingly, the plants may digest animals such as:

- reptiles
- small mammals
- small fish
- and crustaceans

Image 2- Bee is one of critters digested by carnivorous plants

# Other previous postings:

Image 3- Another insect consumed by carnivorous plants

However, the most common critters to be eaten by this carnivorous are variety of insects.

Image 4- Other carnivorous plants

The insects, off course small in term of size and coexist with carnivorous plants, they may include:

- bees
- beetles
- ants
- mosquitoes, and their larvae
- flies
- moths and gnats

Have you seen any animals trapped by carinivorous plants in nature?

# Previous postings:

Friday, 14 October 2022

A Young Red Tail Hawk Caught a Squirrel – Science – 24

I have posted A Red Tail Hawk in Our Neighborhood; you may read the previous post: A Red Tail Hawk in Our Neighborhood – Science – 20

Image 1 – Red tail hawk caught squirrels.

We could see hawk eat a squirrel on the ground at previous post. Now, you see the hawk hold the “victim” and fly to secure places (Images 1 and 2) somewhere on the branch of tree.

A Red Tail Hawk will perch in a tree, usually a big and old tree, waiting for the perfect opportunity to grab a squirrel and other small animals.

The predator will poke out the eyes so the victim can't run. I know it's nature but We may don't want to see the cruelty.

Image 2- Hawk flying with victim

My neighbors believe that Red Tail Hawk together with other predators are able to control rat population in our neighborhood.

Image 3- A predator sitting on the tree

Some other small critters consumed by Red Tail Hawk in our near by areas, just for examples are:

- reptiles, include snakes
- rabbits
- voles
- frogs and toads

Have you seen this predator in nature?

# Previous postings:

Thursday, 13 October 2022

Using of Cordless Electrostatic Sprayer for Killing Virus - Part 2 – Science 21

You may read previous part (Part 1):

- Using of Cordless Electrostatic Sprayer for Killing Virus - Part 1 – Science 21

Image 1- Cordless sprayer, sold by Amazon 

Hotels have promised to sanitize their rooms and areas to make sure free from SARS-CoV-2.

Much more hotels sanitized their rooms nowadays. Since the pandemic, these hotels include:
- Westin
- Renaissance
- Sheraton
- the Ritz-Carlton

Image 2- Room at Westin Hotel, New Orlean, Pleasant Holidays

Price depends on brand, weight, size and easiness to use. I saw at Amazon price of Cordless sprayer are:

- the cheapest price was US$ 27.88
- medium price US$ 59.95
- the most expensive was US$ 149.98

Image 3- A cat, illustration only

In term of price, the medium price US$ 59.95 was favorite one for customers. It may due to its reasonable price and quality.

They use this machine with standard disinfectants ruled by “the Centers for Disease Control and Prevention” (CDC) and “the World Health Organization.” (WHO).

If you are planning to travel in the near future, hope, you will feel safe to stay in hotels.

# Previous Postings:

Saturday, 8 October 2022

Canadian Geese Live Permanently in Neighborhood – Part 1- Science 23

Yes, a Canadian goose is one of migratory birds, they visit our city when freezing temperature happen in the North of America, include Canada.

Fig 01- A Lonely Canadian geese

However, at least, since 10 years ago, I saw several of them stay all seasons, hence, it could be mean that these geese live “permanently.”

We find this critter in the lakes, especially urban lakes of our state or cities, and even at our neighborhood.

I just wonder that why some geese have chosen to live in the southern states such as Louisiana, Alabama Texas or Florida?

Image 2- Canadian geese hang out at our neighborhood

Image 3- Ducklings feel comfort

Temporary answer that they might be able to adjust to warmer temperature or other reasons.

As reported by “digbr” (2016), some reasonable reasons are:

- availability of food
- decent habitats
- many lakes and ponds are available for nesting during breeding seasons.
- less predators
- migration makes geese stress.

# To be continued to Part 2

## Previous postings:

Saturday, 1 October 2022

Blue Crab Turns Red Crab – Science 22

Fish, shrimp and crawfish are our favorite items when we buy seafood in the market. They mainly harvest from our state waters.

Image 1- Raw and fresh blue crab

At least two kinds of crabs are sold in our areas, blue crabs (Callinectes sapidus) and Dungeness (Metacarcinus sp). The Dungeness crab has been posted previously:

I believe you know that all crab and lobster will turn red when cooked by boiling or steaming it.

The question then: Why?

Image 2- Dungeness crabs sold in the market

Image 3- Crab turns red when we cook it.

As you might know, the process of crab, prawn, lobster or crustaceans turns red when cooked:

- first, heat due to grilling or boiling will destroy protein called crustacyanin.
- second, releasing of astaxanthin
- finally, shell turns red (bright red).

Many people love to consume crustaceans, but few people don’t like them because of many reasons.

Some of my friends have allergic if they eat crustaceans.

How about you? Do you like to eat lobster, crab or shrimp?

# Previous postings:

Learning Process Based on My Own Experienced – Part 1 – Science 28

During my human medicine study at a college, one of courses wa s Pathophysiology class (BIOL-4310). Image 1- Learning process level of Bloom...