World TB Day Tuberculosis in the 21st Century: Payam Nahid
Payam Nahid, M.D., Associate Professor at the University of California San Francisco, counteracts the stigma of TB as an ancient disease and addresses the reason why the disease is prevalent in the present.
World TB Day Tuberculosis in the 21st Century: Christy Hanson
Christy Hanson, Ph.D., Chief of the Infectious Disease Division, USAID, talks about the role of the USAID in fighting tuberculosis around the world.
Portugal buys time with bond sale
Debt-laden Portugal raised 1.65 billion euros in a surprisingly strong bond sale but analysts predict its high cost of borrowing will still force it into an international bailout within months.
8 UN staff killed in Afghan Koran burning protest
At least eight UN staff are killed in Mazar-i-Sharif, Afghanistan following an anti-U.S. demonstration condemning the burning of the Islamic holy book in Florida. Jon Decker reports.
Analytical Chemistry 2.0
A complete textbook for Quantitative Analysis is freely downloadable. Teach yourself Analytical Chemistry, or be part of a class on the subject.
The Laboratory Notebook
This site provides well-organized instructions for keeping a laboratory notebook. In addition to the providing an overview of general rules and organization, the site also discusses organization of conclusions around three central types of outlines for measurement experiments, synthesis experiments and reporting of physical phenomena.
All about Electrochemistry
Site contains introductory material in basic electrochemistry. Topics include galvanic cells, electrodes, cell potentials and thermodynamics, Nernst, batteries and fuel cells.
Analytical Electrochemistry: A Laboratory Manual
This labware module contains directions for seven experiments in analytical electrochemistry. The experiments are designed to illustrate fundamentals of electrode reactions as applied to readily accessible redox reactants. They provide insight to dynamic electrochemistry for scientists at all levels of training. Activation procedures to prepare glassy carbon electrodes are provided in a TechNote.
Synthesis of a Sonogel-Carbon Modified Sensor Electrode with Titanium Oxide (TiO2) to Detect Catecho
This experiment demonstrates cyclic voltammetry, surface modification, selectivity, and bioanalysis in assaying catechols in the presence of ascorbic acid. Pre- or post-lab questions are included, along with sample student data and instructor\'s notes.
Electrochemistry and Detection of Organic and Biological Molecules such as Catechols
This ASDL online article describes a lab experiment whereby students learn how to prepare a conducting thin-film polymer electrode for the analysis of catechol and the effect of ascorbic acid on the cyclic voltammetric results.
Active Learning in Advanced Analytical Chemistry, a course for first year graduate students
The introductory lecture course for graduate-level analytical chemistry is commonly understood to require students to be broadly aware of analytical tools, current problems, and methods for linking problems and measurements. This article describes an active learning approach to this course, using review articles to focus discussion and reveal gaps in student knowledge. Students give most of the course\'s lectures, with grades based on lectures, exams, and a term paper.
Chromatography and Mass Spec Lectures
This site contains mass spectrometry and chromatography lecture notes for a graduate course. They are subdivided by topic (history, theory, etc.) and are easy to browse. They may be helpful to someone constructing their own course in chromatography and/or mass spectrometry. The notes are fairly complete. The historical sections may particularly save time in preparing courses. The notes also provide good information and a helpful outline to follow. The site also has some nice mass spectrometr
Animation of diode array detection in HPLC
This animation site deals specifically with diode array detection for liquid chromatography. The animations are short (one to two minutes) and can easily be shown in class as part of a lecture. They are extremely helpful in illustrating key components and concepts of chromatographic systems. Users are encouraged to explore the site and the other brief animations as well. Separate links to other simulations by the same company (TRSL) are also listed on ASDL. This site requires FLASH version 7 or
Animation of GC flame ionization detector
This site is one in a series of sites with very good animations related to separations. This animation deals specifically with flame ionization detection in GC. The animations are short (one to two minutes) and can easily be shown in class as part of a lecture. They are extremely helpful in illustrating key components and concepts of chromatographic systems. Users are encouraged to explore the site and the other brief animations as well. Separate links to other simulations by the same company (T
Chromatography Nomenclature and Definitions
This website gives the IUPAC approved definitions in the field of chromatography. It is critical for students to appreciate the importance of using standardized nomenclature and definitions.
DNA Evidence Training
These training modules are intended to provide interactive training that covers basic information about the identification, preservation, and collection of DNA evidence at virtual crime scenes related homicide, sexual assault, and burglary. Information addressed in this interactive training program is delivered in two modules. The Beginning Level Module focuses on issues that arise for the first-responding law enforcement officer. The Advanced Level Module delivers more in-depth information for
Light sources - Technical Information
This is a commercial site with some detailed information included with product announcements. The discussion of light collection is an exceptional introduction to matching optical elements with maximum throughput. There are also illustrative spectra of typical sources and descriptions of laws of radiation and radiation units.
This commercial site is an extensive description of the fundamentals and applications of photomultipliers including their characteristics, structures, operating parameters, and applications areas. The contents are provided in 14 chapters covering 323 pages that include nearly everything that you ever wanted to know about photomultiplier tubes. Reading the text and accompanying illustrations with patience and care, you can become an expert on the subject. It will allow the practitioner to use th
Analytical Electrochemistry: Basic concepts
This module focuses on the basic concepts involved in dynamic electrochemistry when the net current is not zero - the combination of mass transfer and electrochemical reactions at the interface between solids and fluids. It is at an introductory level appropriate for undergraduates in their sophomore or junior years.
M.E. Muller Institute for Microscopy
This website is a nice primer for those who are interested in atomic-level surface imaging of biological samples with atomic force microscopy (AFM). The accompanying graphics are illustrative of what can be done and at what resolution. Note the material is a little dated (1996), but is still very useful. If one is interested in learning about biological imaging with other methods as well, it is recommended to open the home page site (http://www.mih.unibas.ch/Booklet/Booklet96/Intro/Intro.ht