Spiceland Academy Students Perform a Chemistry Experiment
Five young men who appear to be Spiceland Academy students pretend to do a chemistry experiment in the photographer's studio. They have a table set up with test tubes, bottles, beakers, and mortar and pestle, and each student performs a task. All are wearing suits and ties and one is an African American.
ComScience est un outil en ligne de l'INSA de Toulouse qui aide à la préparation d'intervention orale en anglais dans le domaine des sciences. (en version test). Des centaines de phrases ou morceaux de phrases ont été extraites de présentations anglaises en science et regroupées en partie puis en sous-thèmes dans le but de faciliter l'organisation d'une présentation, l'articulation de différentes parties et la prononciation des phrases. Seule la version anglaise des sons est disponible
This site contains a list of books about gas chromatography with their tables of contents. Potentially useful for practictioners or research students needing an introduction to GC. Some links (such as those to spectroscopy, NMR, and LC) do not yield any useful information.
This site contains complete notes in a PowerPoint-like presentation for a chemical separations course. It covers a wide variety of topics, including distillation, extraction, gas chromatography, liquid chromatograpy, chromatography theory, instrumentation, electrophoresis, field flow fractionation, and affinity chromatography. It covers these topics thoroughly using a clear, consistent, and simple presentation style. Links to major topics like GC, LC, and electrophoresis provide specific informa
This site provides an excellent experiment involving cyclic voltammetry at a gold electrode. The experiment includes a detailed introduction to the topics of electrode capacitance, electrode reactions, and flux of the electroactive species to electrode surface. Lab report guidelines and post-lab questions are included.
CL-1: Field-tested Learning Assessment Guide (FLAG)
This page gives Field-tested Learning Assessment Guides (FLAG) for use in a college or university setting in mathematics, science or engineering. There is a writing intensive portfolio that can be accessed, but most of the material focuses on general and organic chemistry courses that can be used by faculty or graduate student.
Using Documentary Film to Explore Family History and Memory
In the third lesson in the Family, History and Memory module, students explore their family stories in a historical context. The PBS documentary Daughter From Danang is used to illustrate the dramatic impact that the Vietnam War had on the family and identity of an Amerasian child as she grew into womanhood. The lessons can be delivered as a module or as individual units.
What does life need?
Here's an interactive exercise about the needs of all living things. The introduction explains that scientists can use the knowledge of life requirements to guide their search for life on Mars. Players identify which of these six items are necessary for life: sunlight, oxygen, water, meat, energy, and raw materials. If any wrong answers are given, players are shown the number of correct answers and are given access to Learn More buttons. All the Learn More sections are similar. In them, players
Middle School Portal: Math and Science Pathways (MSP2)
This web site offers families, teachers, and tutors 80 mathematical challenges helpful for encouraging problem solving with students in grades 6 to 8. The math challenges focus on concepts and objects found in everyday life, such as how fast your heart beats, what shape container holds the most popcorn, and how much of me shows in a mirror. Each challenge contains an initial problem with a solution hint, a complete explanation of the answer, and additional problems related to the same challenge.
From Algorithms to Z-Scores: Probabilistic and Statistical Modeling in Computer Science
The materials here form a textbook for a course in mathematical probability and statistics for computer science students. Computer science examples are used throughout, in areas such as: computer networks; data and text mining; computer security; remote sensing; computer performance evaluation; software engineering; data management; etc.
Prostate Cancer Screening Decision Making Under Controversy: Implications for Health Promotion Pract
Prostate cancer is a major health problem for U.S. men and is characterized by paradoxes and controversies. Despite the wide availability of the prostate-specific antigen (PSA) test, prostate cancer screening remains a controversial practice mainly because the direct impact of screening on mortality is not yet proven. As the relative value of screening, early detection, and treatment strategies continue to be debated, glaring racial-ethnic disparities persist with African American men experienci
Guidelines for Teaching Middle and High School Students to Read and Write Well
Most classroom teachers work hard planning lessons, choosing materials, teaching classes, working with individual students, and assessing student progress. Yet some schools and teachers seem to be more successful than others. What makes the difference? This booklet is designed for middle and high school teachers and administrators who wish to improve their English programs. Guidelines for Teaching Middle and High School Students to Read and Write Well draw upon a series of research reports and c
Evaluation of springback prediction capability using uniform pure bending
The aim of this study is to develop uniform pure bending as an objective test for determining the accuracy of springback prediction by employing different FEA techniques. A complete theoretical solution for the bending moment and change in sheet thickness is available only for uniform pure bending of perfectly plastic sheets. However, plastic hinging develops naturally in simulations of bending perfectly plastic sheets. We have developed a method to prevent plastic hinging and achieve uniform pu
Design and evaluation of composite car-front subframe rails in a sedan and its corresponding occupan
Today occupant safety is of a prime concern to every car manufacturer. New standards are being set for the safety of the occupant in different crash scenarios like frontal head on collision, angle impacts, side impacts, rear impacts and rollover. Among these standards, frontal impact is one of the fatal crash scenarios that lead to death of scores of people in the United States and across the globe. The automotive mid-rail is the main load carrying/energy-absorbing component in a event of fronta
Thesis (M.F. A.)--Wichita State University, Dept. of English.,"May 2006."
Characterization of mechanical systems with real joints and flexible links
The field of multibody simulations has seen great strides in recent years. Most multibody simulations are carried out under the assumption that the joints involved are ideal. However many real joints are not ideal; they possess some clearance between their components. The existence of these clearances allows for the freeflight motion of some of the joint’s constituent components. This motion is usually followed by an impact leading to load amplification and chaotic motion. The effects of impac
Novel inhibitors of human leukocyte proteinase 3
Chronic obstructive pulmonary disease (COPD) is a multifactorial disorder that is associated with an influx of macrophages, neutrophils and T-lymphocytes to the lungs and the extracellular release of several proteases, including serine (proteinase 3, elastase, cathepsin G), cysteine (cathepsin S) and metallo- (macrophage metalloelastase, MMP-12) proteases, leading to a protease/antiprotease imbalance. The pathogenesis of COPD arises from an imbalance between the levels of proteases and their end
Literature circles in the high school setting: an inquiry from comprehension to synthesis
The purpose of this study is to determine the efficacy of literature circles in a high school English classroom setting. Specifically, the purpose of this is to determine if literature circles improve reading comprehension and student involvement in reading and class discussions. As a sub-inquiry of this study, it is the purpose of this researcher to determine if the prescribed roles often used as guidelines for literature circles create perfunctory responses in small group discussions, and if i
Analysis of honeycomb core properties under different parametric conditions for the head injury crit
There has been enormous boom in the air travel in recent times. There is increasing demand for the technological advancement nowadays towards the safety of the onboard passengers. Certification of aircrafts requires engineers to demonstrate that a head contact with any aircraft interior complies with the Head injury criteria (HIC) threshold of 1000 units specified in 14CFR 23.562, 25.562, 27.562. Analyzing injuries to the head of the occupant when it comes to contact with any aircraft cabin inte
Are women still experiencing gender discrimination in income and employment positions?
The purpose of this research is to examine the gender pay-gap and the potential factors that contribute to income inequality. Since passing the Equal Pay Act the median weekly earnings of women is still just $0.72 for every dollar men earn. To put this in context the pay-gap in 1970 was $0.62 and in 1992 it was $0.75 (Institute for Women’s Policy Research, 1993). Secondary data analysis of the 2003 American Time Use Survey purports the potential reasons why the pay-gap still continues. This re