Protesters call for coalition help.
Over 600 protesters call on coalition forces to strike Gaddafi forces while in Azizyah, residents attend the funeral of a man they say was killed in a Western airstrike.
1.2.3 Pie charts: Nuclear power stations
This Unit will introduce you to a number of ways of representing data graphically and of summarising data numerically. You will learn the uses for pie charts, bar charts, histograms and scatterplots. You will also be introduced to various ways of summarising data and methods for assessing location and dispersion.
1.3.2: Pie charts: surgical removal of tattoos
This Unit will introduce you to a number of ways of representing data graphically and of summarising data numerically. You will learn the uses for pie charts, bar charts, histograms and scatterplots. You will also be introduced to various ways of summarising data and methods for assessing location and dispersion.
2.3.1 Introduction
This Unit will introduce you to a number of ways of representing data graphically and of summarising data numerically. You will learn the uses for pie charts, bar charts, histograms and scatterplots. You will also be introduced to various ways of summarising data and methods for assessing location and dispersion.
1.1.9 Data and questions: summary
This Unit will introduce you to a number of ways of representing data graphically and of summarising data numerically. You will learn the uses for pie charts, bar charts, histograms and scatterplots. You will also be introduced to various ways of summarising data and methods for assessing location and dispersion.
LC Calc (TM) Online. A handy calculator for HPLC computations.
This site contains several on-line calculators for use in liquid chromatography. These include pressure unit conversion, buffer pH, and scale-up factors. Some links may be broken.
SSSPD_Chapter 6_Part 7_Introduction to ATHENA2_Process Simulator
Bijay_Kumar Sharma
SSPD_Chapter 6_Part 7 is continuation of "Creating Device Structures".Here we give 'geometrical etch','reducing grid points','reflecting the half structure to get the full structure','specifying […]
Passover Matzo (3:15)
In this video watchers learn why the matzo is traditionally eaten during Passover. This explains how it is made.
1.04.2011 – Langsam gesprochene Nachrichten
Trainieren Sie Ihr Hörverstehen mit authentischen Materialien. Nutzen Sie die Nachrichten der Deutschen Welle von Freitag – als Text und als verständlich gesprochene Audio-Datei. Bei der Messung der Radioaktivität im havarierten japanischen Atomkraftwerk Fukushima 1 hat der Betreiber Tepco ein weiteres Mal geschlampt. Die japanische Atomaufsichtsbehörde teilte mit, die Messwerte vom Grundwasser rund um den Meiler seien teilweise fehlerhaft. Das Grundwasser sei jedoch sehr wahrscheinlich de
World TB Day Tuberculosis in the 21st Century: Jon Sawyer
Moderator Jon Sawyer, Executive Director of the Pulitzer Center on Crisis Reporting, introduces the event and the four panelists.
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.
Gaddafi's government rejects Libyan rebel truce offer
Muammar Gaddafi's forces intensified their onslaught in the western rebel outpost of Misrata on Friday and his government scorned rebel conditions for a nationwide ceasefire. Jon Decker reports.
When Computers Changed the World from the Revolution Exhibition
"When Computers Changed the World" is just one of more than 100 videos in the Computer History Museum's new exhibition: "Revolution: the First 2000 Years of Computing." In the span of a single lifetime, computers have gone from large, incredibly expensive and rare devices to small, low-cost, ubiquitous tools that we can't imagine living without. Yet, few people know the history of how this came to be.
Revolution: The First 2000 Years of Computing is a rich, multimedia exhibition that traces the
WebGURU
This site is a wonderful resource for undergraduate researchers and their mentors. Topics covered include research nuts and bolts, funding your science, scientific ethics, lab safety, communicating your science and mentoring issues. The site makes good use of case studies, self-study questions and references on each topic.
Cell Phone Spectrophotometer
Instructions and software are provided to allow students to build an inexpensive spectrophotometer, using digital cameras or cell phone cameras as array detectors. Supplementary materials include instructions for high school teachers and laboratory instructions for both high school and college students. Software source code allows customization.
Split Injection GC
This animation site deals specifically with split injection in gas 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.
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.
Chromatography Theory
James Hardy has produced a number of powerpoint type lecture modules for analytical chemistry. This is another very good module that covers the introductory theory of chromatography. Includes chromatography types, plate and kinetic theories. Level of presentation is at the introductory analytical chemistry level. It is a colorful and well planned presentation of the introduction to chromatography that could be used as the basis for lectures on chromatography at the introductory analytical chemis
Quantitative Spectroscopic Calibration
Spectroscopic calibration is the process of using mathematical calculations to relate spectroscopic measurements to chemical composition. Several algorithms can be used to perform these calculations. Success depends on selecting a suitable set of calibration samples to train the system, using the correct algorithm to match the characteristics of the measured data, and properly evaluating and validating the calibration model developed. Various aspects of calibrating spectroscopic instruments
