Thông tin liên hệ
Bài viết của Nguyễn Mỹ Hương

Introduction to Media and Technology

Facebook does more than expand one’s circle of friends from a few dozen to a few hundred. It changes the way we interact with our world. (Photo courtesy of Frederick M. Drocks/flickr) How many good friends do you have? How many ...

Tác giả: Nguyễn Mỹ Hương viết 15:09 ngày 25/05/2018 chỉnh sửa

Bulk Transport

In addition to moving small ions and molecules through the membrane, cells also need to remove and take in larger molecules and particles (see [link] for examples). Some cells are even capable of engulfing entire unicellular microorganisms. You might have ...

Tác giả: Nguyễn Mỹ Hương viết 15:09 ngày 25/05/2018 chỉnh sửa

Citric Acid Cycle and Oxidative Phosphorylation

In eukaryotic cells, the pyruvate molecules produced at the end of glycolysis are transported into mitochondria, which are sites of cellular respiration. If oxygen is available, aerobic respiration will go forward. In mitochondria, pyruvate will be ...

Tác giả: Nguyễn Mỹ Hương viết 15:08 ngày 25/05/2018 chỉnh sửa

Digestive System Regulation

The brain is the control center for the sensation of hunger and satiety. The functions of the digestive system are regulated through neural and hormonal responses. In reaction to the smell, sight, or thought of food, like that shown in [link], the first ...

Tác giả: Nguyễn Mỹ Hương viết 15:08 ngày 25/05/2018 chỉnh sửa

Endocrine System

The endocrine system produces hormones that function to control and regulate many different body processes. The endocrine system coordinates with the nervous system to control the functions of the other organ systems. Cells of the endocrine system produce ...

Tác giả: Nguyễn Mỹ Hương viết 15:08 ngày 25/05/2018 chỉnh sửa

Limits of Resolution: The Rayleigh Criterion

Light diffracts as it moves through space, bending around obstacles, interfering constructively and destructively. While this can be used as a spectroscopic tool—a diffraction grating disperses light according to wavelength, for example, and is used to ...

Tác giả: Nguyễn Mỹ Hương viết 15:08 ngày 25/05/2018 chỉnh sửa

Bone Classification

The 206 bones that compose the adult skeleton are divided into five categories based on their shapes ([link]). Their shapes and their functions are related such that each categorical shape of bone has a distinct function. Classifications of Bones Bones ...

Tác giả: Nguyễn Mỹ Hương viết 15:07 ngày 25/05/2018 chỉnh sửa

Physics: An Introduction

The flight formations of migratory birds such as Canada geese are governed by the laws of physics. (credit: David Merrett) The physical universe is enormously complex in its detail. Every day, each of us observes a great variety of ...

Tác giả: Nguyễn Mỹ Hương viết 15:07 ngày 25/05/2018 chỉnh sửa

Force on a Moving Charge in a Magnetic Field: Examples and Applications

Magnetic force can cause a charged particle to move in a circular or spiral path. Cosmic rays are energetic charged particles in outer space, some of which approach the Earth. They can be forced into spiral paths by the Earth’s magnetic field. Protons ...

Tác giả: Nguyễn Mỹ Hương viết 15:07 ngày 25/05/2018 chỉnh sửa

Introduction to Race and Ethnicity

Race and ethnicity are part of the human experience. How do racial and ethnic diversity play in a role in who we are? (Photo courtesy of Agecom Bahia/flickr) In a mixed vocational/academic high school, Ms. Ellis grades papers for her ...

Tác giả: Nguyễn Mỹ Hương viết 15:07 ngày 25/05/2018 chỉnh sửa