Danh sách bài viết của Nguyễn Mỹ Hương

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Bài viết của Nguyễn Mỹ Hương

Embryonic Development of the Respiratory System

Development of the respiratory system begins early in the fetus. It is a complex process that includes many structures, most of which arise from the endoderm. Towards the end of development, the fetus can be observed making breathing movements. Until birth, ...

Tác giả: Nguyễn Mỹ Hương viết 15:05 ngày 25/05/2018 chỉnh sửa

Resistors in Series and Parallel

Most circuits have more than one component, called a resistor that limits the flow of charge in the circuit. A measure of this limit on charge flow is called resistance . The simplest combinations of resistors are the series and parallel connections ...

Tác giả: Nguyễn Mỹ Hương viết 15:05 ngày 25/05/2018 chỉnh sửa

Characteristics and Traits

The seven characteristics that Mendel evaluated in his pea plants were each expressed as one of two versions, or traits. The physical expression of characteristics is accomplished through the expression of genes carried on chromosomes. The genetic makeup of ...

Tác giả: Nguyễn Mỹ Hương viết 15:05 ngày 25/05/2018 chỉnh sửa

Threats to Biodiversity

The core threat to biodiversity on the planet, and therefore a threat to human welfare, is the combination of human population growth and resource exploitation. The human population requires resources to survive and grow, and those resources are being removed ...

Tác giả: Nguyễn Mỹ Hương viết 15:05 ngày 25/05/2018 chỉnh sửa

Hormonal Control of Osmoregulatory Functions

While the kidneys operate to maintain osmotic balance and blood pressure in the body, they also act in concert with hormones. Hormones are small molecules that act as messengers within the body. Hormones are typically secreted from one cell and travel in the ...

Tác giả: Nguyễn Mỹ Hương viết 15:05 ngày 25/05/2018 chỉnh sửa

Cancer and Gene Regulation

Cancer is not a single disease but includes many different diseases. In cancer cells, mutations modify cell-cycle control and cells don’t stop growing as they normally would. Mutations can also alter the growth rate or the progression of the cell through ...

Tác giả: Nguyễn Mỹ Hương viết 15:05 ngày 25/05/2018 chỉnh sửa

Carnot’s Perfect Heat Engine: The Second Law of Thermodynamics Restated

This novelty toy, known as the drinking bird, is an example of Carnot’s engine. It contains methylene chloride (mixed with a dye) in the abdomen, which boils at a very low temperature—about 100ºF . To operate, one gets ...

Tác giả: Nguyễn Mỹ Hương viết 15:04 ngày 25/05/2018 chỉnh sửa

Innate Immunity

The vertebrate, including human, immune system is a complex multilayered system for defending against external and internal threats to the integrity of the body. The system can be divided into two types of defense systems: the innate immune system, which is ...

Tác giả: Nguyễn Mỹ Hương viết 15:04 ngày 25/05/2018 chỉnh sửa

Nutritional Requirements of Plants

Plants are unique organisms that can absorb nutrients and water through their root system, as well as carbon dioxide from the atmosphere. Soil quality and climate are the major determinants of plant distribution and growth. The combination of soil nutrients, ...

Tác giả: Nguyễn Mỹ Hương viết 15:03 ngày 25/05/2018 chỉnh sửa

Applying Genomics

The introduction of DNA sequencing and whole genome sequencing projects, particularly the Human Genome project, has expanded the applicability of DNA sequence information. Genomics is now being used in a wide variety of fields, such as metagenomics, ...

Tác giả: Nguyễn Mỹ Hương viết 15:03 ngày 25/05/2018 chỉnh sửa

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Embryonic Development of the Respiratory System

Resistors in Series and Parallel

Characteristics and Traits

Threats to Biodiversity

Hormonal Control of Osmoregulatory Functions

Cancer and Gene Regulation

Carnot’s Perfect Heat Engine: The Second Law of Thermodynamics Restated

Innate Immunity

Nutritional Requirements of Plants

Applying Genomics

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