Danh sách bài viết của Nguyễn Mỹ Hương

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Bài viết của Nguyễn Mỹ Hương

Muscle Tissue and Motion

Muscle tissue is characterized by properties that allow movement. Muscle cells are excitable; they respond to a stimulus. They are contractile, meaning they can shorten and generate a pulling force. When attached between two movable objects, in other words, ...

Tác giả: Nguyễn Mỹ Hương viết 15:21 ngày 25/05/2018 chỉnh sửa

The Adaptive Immune Response: B-lymphocytes and Antibodies

Antibodies were the first component of the adaptive immune response to be characterized by scientists working on the immune system. It was already known that individuals who survived a bacterial infection were immune to re-infection with the same pathogen. ...

Tác giả: Nguyễn Mỹ Hương viết 15:21 ngày 25/05/2018 chỉnh sửa

The Law of Refraction

It is easy to notice some odd things when looking into a fish tank. For example, you may see the same fish appearing to be in two different places. (See [link].) This is because light coming from the fish to us changes direction when it leaves the tank, and in ...

Tác giả: Nguyễn Mỹ Hương viết 15:21 ngày 25/05/2018 chỉnh sửa

Bacterial Diseases in Humans

Devastating pathogen-borne diseases and plagues, both viral and bacterial in nature, have affected humans since the beginning of human history. The true cause of these diseases was not understood at the time, and some people thought that diseases were a ...

Tác giả: Nguyễn Mỹ Hương viết 15:20 ngày 25/05/2018 chỉnh sửa

The Wave Nature of Matter

In 1923 a French physics graduate student named Prince Louis-Victor de Broglie (1892–1987) made a radical proposal based on the hope that nature is symmetric. If EM radiation has both particle and wave properties, then nature would be symmetric if ...

Tác giả: Nguyễn Mỹ Hương viết 15:20 ngày 25/05/2018 chỉnh sửa

Development of Joints

Joints form during embryonic development in conjunction with the formation and growth of the associated bones. The embryonic tissue that gives rise to all bones, cartilages, and connective tissues of the body is called mesenchyme. In the head, mesenchyme will ...

Tác giả: Nguyễn Mỹ Hương viết 15:19 ngày 25/05/2018 chỉnh sửa

Challenges Families Face

As the structure of family changes over time, so do the challenges families face. Events like divorce and remarriage present new difficulties for families and individuals. Other long-standing domestic issues such as abuse continue to strain the health and ...

Tác giả: Nguyễn Mỹ Hương viết 15:19 ngày 25/05/2018 chỉnh sửa

What Is Social Stratification?

In the upper echelons of the working world, people with the most power reach the top. These people make the decisions and earn the most money. The majority of Americans will never see the view from the top. (Photo ...

Tác giả: Nguyễn Mỹ Hương viết 15:19 ngày 25/05/2018 chỉnh sửa

Back Emf

It has been noted that motors and generators are very similar. Generators convert mechanical energy into electrical energy, whereas motors convert electrical energy into mechanical energy. Furthermore, motors and generators have the same construction. ...

Tác giả: Nguyễn Mỹ Hương viết 15:19 ngày 25/05/2018 chỉnh sửa

Nutritional Adaptations of Plants

Plants obtain food in two different ways. Autotrophic plants can make their own food from inorganic raw materials, such as carbon dioxide and water, through photosynthesis in the presence of sunlight. Green plants are included in this group. Some plants, ...

Tác giả: Nguyễn Mỹ Hương viết 15:19 ngày 25/05/2018 chỉnh sửa

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Muscle Tissue and Motion

The Adaptive Immune Response: B-lymphocytes and Antibodies

The Law of Refraction

Bacterial Diseases in Humans

The Wave Nature of Matter

Development of Joints

Challenges Families Face

What Is Social Stratification?

Back Emf

Nutritional Adaptations of Plants

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