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Bài viết của Nguyễn Mỹ Hương

Water Balance

On a typical day, the average adult will take in about 2500 mL (almost 3 quarts) of aqueous fluids. Although most of the intake comes through the digestive tract, about 230 mL (8 ounces) per day is generated metabolically, in the last steps of aerobic ...

Tác giả: Nguyễn Mỹ Hương viết 15:32 ngày 25/05/2018 chỉnh sửa

Development and Regeneration of Muscle Tissue

Most muscle tissue of the body arises from embryonic mesoderm. Paraxial mesodermal cells adjacent to the neural tube form blocks of cells called somites . Skeletal muscles, excluding those of the head and limbs, develop from mesodermal somites, whereas ...

Tác giả: Nguyễn Mỹ Hương viết 15:32 ngày 25/05/2018 chỉnh sửa

Communication Between Neurons

The electrical changes taking place within a neuron, as described in the previous section, are similar to a light switch being turned on. A stimulus starts the depolarization, but the action potential runs on its own once a threshold has been reached. The ...

Tác giả: Nguyễn Mỹ Hương viết 15:32 ngày 25/05/2018 chỉnh sửa

Transport of Water and Solutes in Plants

The structure of plant roots, stems, and leaves facilitates the transport of water, nutrients, and photosynthates throughout the plant. The phloem and xylem are the main tissues responsible for this movement. Water potential, evapotranspiration, and stomatal ...

Tác giả: Nguyễn Mỹ Hương viết 15:31 ngày 25/05/2018 chỉnh sửa

Hooke’s Law: Stress and Strain Revisited

When displaced from its vertical equilibrium position, this plastic ruler oscillates back and forth because of the restoring force opposing displacement. When the ruler is on the left, there is a force to the right, and vice ...

Tác giả: Nguyễn Mỹ Hương viết 15:31 ngày 25/05/2018 chỉnh sửa

Antibodies

An antibody , also known as an immunoglobulin (Ig), is a protein that is produced by plasma cells after stimulation by an antigen. are the functional basis of humoral immunity. occur in the blood, in gastric and mucus secretions, and in breast milk. in ...

Tác giả: Nguyễn Mỹ Hương viết 15:31 ngày 25/05/2018 chỉnh sửa

Ecology of Protists

Protists function in various ecological niches. Whereas some protist species are essential components of the food chain and generators of biomass, others function in the decomposition of organic materials. Still other protists are dangerous human pathogens or ...

Tác giả: Nguyễn Mỹ Hương viết 15:31 ngày 25/05/2018 chỉnh sửa

Introduction to Sociological Research

Concertgoers enjoy a show. What makes listening to live music among a crowd of people appealing? How are the motivations and behaviors of groups of people at concerts different from those of groups in other ...

Tác giả: Nguyễn Mỹ Hương viết 15:30 ngày 25/05/2018 chỉnh sửa

Body Fluids and Fluid Compartments

The chemical reactions of life take place in aqueous solutions. The dissolved substances in a solution are called solutes. In the human body, solutes vary in different parts of the body, but may include proteins—including those that transport lipids, ...

Tác giả: Nguyễn Mỹ Hương viết 15:30 ngày 25/05/2018 chỉnh sửa

Linear Momentum and Force

The scientific definition of linear momentum is consistent with most people’s intuitive understanding of momentum: a large, fast-moving object has greater momentum than a smaller, slower object. Linear momentum is defined as the product of a ...

Tác giả: Nguyễn Mỹ Hương viết 15:30 ngày 25/05/2018 chỉnh sửa