PH 106 Exam 2
4/16 (Wed), 2014
1. A point particle with mass (m=3 g) and an electric charge (q=0.002 C) has
an initial velocity of v=( 1, 3, 0) m/s and a constant acceleration of a=(2, 0, -8)
m/s^2 in a region where uniform electric and magnetic fields ar
Course & Section: PH106-00_ Name:_ Date: Feb. 27
1. Two point charges are placed at
(1-1) Express the electric potential V(x, y, z) at a point (x, y, z).
(1-2) Find a point P =(p, 0, 0), where the potential becomes 0, i.e. V(p, 0, 0)=0 .
How to use the simulation app
Do not use the controls under AUTO PLOTTING in this simulation.
Selecting and placing charges
1. Click on ADD/MODIFY button
2. To select a charge of a particular magnitude and sign, slide the slider bar to the left or right.
Week 4 - Learning objectives & assignments
Understand the basic structure and function of DNA and chromosomes Understand the relationship between DNA, RNA and protein (the 'central dogma' of molecular
biology) Understand the various
Week 4 - Introductory Material - Introduction to DNA
What is DNA?
DNA, or deoxyribonucleic acid, is the hereditary material in humans and almost all other organisms. Nearly every cell in a person's body has the same DNA. Most DNA is located in the cell nu
Week 4 - Introductory Material - Genes
What are proteins and what do they do?
Proteins are large, complex molecules that play many critical roles in the body. They do most of the work in cells and are required for the structure, function, and regulation o
Week 4 - Introduction to Mutagenesis
Genetic toxicology is the branch of toxicology that is concerned with the effects of chemical and physical agents on DNA and the genetic processes of living cells. Genetic toxicology broadly encompasses both genotoxici
Week 4 - Chemical Carcinogens
Although there is continued debate of the molecular mechanisms involved in carcinogenesis, there is no debate over the fact that certain chemicals can act as carcinogens. Evidence for this comes from both epidemiological and
Week 4 - Carcinogenesis
Cancer has long been considered a cellular disease since cancers are composed of cells that grow without restraint in various areas of the body. Such growths of cancerous cells can replace normal cells or tissues causing sev
DNA IS NOT DESTINY
By Ethan Watters
The new science of epigenetics rewrites the rules of disease, heredity, and identity
The study of the epigenome-the suite of biochemical signals that determine which genes in an individual's DNA can be turned on or off-
Human & Experimental Toxicology
http:/het.sagepub.com Epigenetic mechanisms of chemical carcinogenesis
J E Klaunig, L M Kamendulis and Yong Xu Hum Exp Toxicol 2000; 19; 543 DOI: 10.1191/096032700701546442 The online version of this article can be found at
Week 12 - Learning objectives & assignments
Learning objectives: Describe the difference between innate and acquired immunity Identify the components of the immune system, including the differences between B cells, T-cytotoxic lymphocytes, and T-helper ce
Week 12 - Methods in immunotoxicology Assays to Assess Immune System Function
The immune system is possibly the most complex system in the body due to the diverse locations of lymphoid tissues and cells, and the large number of antibodies, cytokines, chem
Week 12 - Immune responses to toxicants
Immune responses to toxicants can be divided into two broad categories: suppression or stimulation of the immune system.
Inhibition of immune system function, either through decreased activity or r
Week 12 - Basic review of the immune system
The role of the immune system is to protect the body against invaders, such as bacteria and viruses, as well as any "home-grown" threats to the body, such as malignant cells. When the immune system is exposed to
Week 10 - Selected Nephrotoxicants
Many metals (e.g. cadmium, chromium, lead, mercury, platinum and uranium) are nephrotoxic. The nature and severity of nephrotoxicity depends upon the form of the metal. For example, inorganic mercury salts a
Week 10 - Pathophysiological Responses of the Kidney
Toxicant-induced damage to the kidney may be mild or severe, reversible or irreversible, depending upon the toxic agent and the dose. A wide variety of xenobiotics (drugs, environmental chemicals and me
Week 10 - Learning Objectives and Assignments
Understand the basic structure and function of the kidney
Understand why the kidney is uniquely susceptible to toxicity Understand the various types of cellular responses to injury in re
Week 10 - Kidney Physiology
The kidneys are excretory organs that provide regulatory support for body homeostasis. One specific function of the kidneys is to excrete waste (including soluble xenobiotics and conjugates) from the blood through the
Pathophysiology of Nephrotoxic Acute Renal Failure
Rick G. Schnellmann Katrina J. Kelly
umans are exposed intentionally and unintentionally to a variety of diverse chemicals that harm the kidney. As the list of drugs, natural products, industrial chemic
reactive intermediates can initiate toxicity via binding to cellular macromolecules or via generation of reactive oxygen species, which may lead to peroxidative damage of Walter Pfaller and Gerhard Gstraunthaler functionally crucial cellular structures su
Week 11 - Specific examples of neurotoxicants
Organophosphate pesticides (OPs), such as malathion and parathion, are widely used in agriculture for insect control. OPs bind tightly to acetylcholinesterase, the enzyme that breaks
Week 11 - Review of the nervous system
This section provides a brief review of basic principles of neural structure and function. For a more in-depth review, please consult Berne and Levy, Chapters 3, 4 and 6.
Neural cells Structure and Function
Week 11 - Protection against neurotoxicity The brain is a sensitive target for toxicants because 1) it is critically important for maintaining physiological operation of the body, and 2) it is very active metabolically, making it highly sensitive to toxic
Week 11 - Methods in neurotoxicology
A large number of in vivo and in vitro tests exist for studying neurotoxicity. A few representative approaches are discussed below.
In Vivo Neurotoxicology Tests
A large number of in vivo neurotoxicity tests are behavi
Week 11 - Learning objectives & assignments
Describe fundamental differences between the different cells of the nervous system, and between the autonomic and central nervous systems Understand basic principles of neurotransmission,
Week 11 - How toxicants interact with the nervous system Given the complex nature of the nervous system, it is not surprising that there are a number of mechanisms for causing neurotoxicity, including interference of electrical conduction; effects on syna
April 30, 2007
Does 'the dose make the poison?'
Extensive results challenge a core assumption in toxicology
by Pete Myers, Ph.D. and Wendy Hessler The "dose makes the poison" is a common adage in toxicology. It implies that larger doses have greater effec
#1 Part(1 of 2) In a series RLC circuit, the resistance is 22 , the capacitance is 70 F and the inductance is 55 mH. The AC generator provides an rms voltage of 100 V operating at 1000 rad/s. Find the power supplied by the source. Answer in units of W. 00
Revised Syllabus PHYUT501 CLASSICAL MECHANICS 1 Constrained Motion
Constraints, Classification of Constraints, Principal of Virtual Work, DAlemberts principal and its applications (Problems only), (One or Two Problems should be discussed with DAlemberts,