Ravitch on Education
Diane Ravitch of NYU talks with EconTalk host Russ Roberts about the ideas in her new book, The Death and Life of the Great American School System: How Testing and Choice Are Undermining Education. Ravitch argues that the two most popular education reform movements, accountability and choice, have had unintended consequences that have done great harm to the current generation of students. She argues that the accountability and testing provisions in legislation like No Child Left Behind and simil
Munger on Private and Public Rent-Seeking (and Chilean Buses)
Mike Munger of Duke University talks with EconTalk host Russ Roberts about private and public rent-seeking. When firms compete for either private profit opportunities or government contracts, there are inevitably firms or people who spend resources but end up earning little or nothing. What are the differences, if any between these two forms of competition? How do they related to competitions that award prizes for discovering new technologies? The conversation begins with a discussion of a recen
Strategic Plan for a website
Strategic planning for the Bazaar Ceramics website. The client is considering upgrading to an e-commerce site. It has therefore been decided to review the organisation's strategic plan and develop a gap analysis before proceeding. Your task is to review the strategic plan and current system, perform a gap analysis and develop an action plan based on any recommendations for improvements.
Systems Testing for a website
The company you work for have expanded their operations to include web-hosting services. This project involves investigating systems testing tools and using these tools to ensure the web server/websites function as required. You are required to develop a test plan and prepare the test environment for testing the web server and individual websites. You then need to conduct testing of the individual and system components and analyse test results.
Determine control mechanisms and corrective actions for food safety hazards
The monitoring system within a food safety program indicates whether the critical control point is under control. It provides feedback that the product is being produced safely. The main types of monitoring are visual inspections, time and temperature measurements, chemical measurements and microbial measurements. When it is determined that a critical control point has not been controlled during production, corrective action must be taken to overcome the problem and bring
Practical exercise designed to develop skills in basic image and video editing and presentation using Windows Movie Maker, a freely available editing software that is part of the Windows Operating System. A local travel agency, Top Travel has asked us to produce a 30-second multimedia presentation for their web site promoting the various attractions on offer in this region.
Investigate sustainable water cycle management
This Unit of Competency focuses on the understanding and management of the water cycle, sustainable water usage and the testing of water quality. It contains information, activities and suggested assessment tasks that enable learners to understand the link between the services and systems of the water organisation and its supply to and use by consumers. Learners find out about a range of water systems that we use to capture, store and distribute water and discover that the water services we rely
Design a basic water system model
This Unit of Competency focuses on the features of basic water and wastewater systems. It contains information, activities and suggested assessment tasks that enable learners to understand the characteristics of simple water and wastewater systems, together with the basic scientific principles used in the development of a working water system model. Learners discover how water flows and find out about the operations behind a working water system and use this knowledge to design a water system mo
Facetted aluminium dendrites
In this system, pro-eutectic aluminium dendrites form with facetted morphologies. Such morphologies are uncommon but are a consequence of the diluteness of the aluminium in the melt. The rest of the melt has solidified as a fine Al-Sn eutectic.
Together, We Can Stop the Flu PSA
Collaboration between Durham County Department of Public Health and Duke Medicine Team members to encourage flu vaccination
Cu 70, Sn 30 (wt%) bronze, as cast
High tin Cu-Sn alloy. The phase diagram of this system is complicated, at room temperature the equilibrium phases are α (copper) and ε.
Historical skills : dating documents
Explains the different dating conventions employed in historical documents. For example, the system of dating by reference to a religious feast day and the year of the reigning monarch has little in common with the modern calendar. Even where a recognisable date is provided, it may not be what it at first appears.... The resource includes a glossary, bibliography and translation of relevant Latin numbers/phrases. Illustrative images of items from our collections appear throughout.
TALAT Lecture 4601: Introduction to Brazing of Aluminium Alloys
This lecture describes the characteristics of brazing aluminium and the process involved; it helps to understand the use potential and the limitations of brazing aluminium. Basic knowledge of aluminium alloys designation system, surface treatment and corrosion behaviour is assumed.
Flash animation in which a virtual patient is provided to test pupillary (consensual) light reflex, palpbral and corneal reflexes in addition to testing nervous control of extraocular muscles of the eye.
This is a module framework. It can be viewed online or downloaded as a zip file. As taught Autumn semester 2009 Infections are a major cause of morbidity and mortality worldwide. The body fights infection through the functions of the immune system, whose power has been harnessed by the development of vaccination (immunisation). Suitable for study at: Undergraduate levels 1 and 2. Dr Ian Todd, School of Molecular Medical Sciences Dr Ian Todd is Associate Professor & Reader in Cellular Immunopatho
TALAT Lecture 1204: Precipitation Hardening
This lecture provides an introduction to the metallurgy of precipitation hardening, with a presentation of the fundamental mechanisms involved and illustrations from alloys which form the basis for engineering alloys. The Al-Mg2Si system is discussed in some detail because of its commercial importance. The microstructural aspects of precipitation hardening are illustrated by examples, many of which were obtained by electron microscopy; an outline of the background to electron microsco
Glass ceramic, heat treated at 750°C for 3 hours
Glass ceramics are materials that are cooled from the melt in the form of a glass, and then heat treated to induce controlled crystallisation of the glass. Heterogeneous nucleation is carried out at a temperature to maximise the nucleation rate (common nucleating agents include TiO2 and ZrO2), and the temperature is then raised sufficiently to cause the nuclei formed to grow rapidly. Glass ceramics are strong, reasonably tough, transparent to IR radiation, have a low coefficient of thermal expan
Final report: Accommodating students of Drexel University
A significant problem for Drexel University is insufficient quality student housing and the inadequate capacity and inconvenient location of the Handshumacher Dining Center. WLHK2 has proposed a new dormitory and food court on the existing volleyball courts at the southwest corner of 33rd and Arch Streets. The site encompasses approximately 26,000 square feet, with a grade difference of 10 feet from the high elevation at the north to the low elevation at the south. The grade difference is utiliz
Gender, crime and justice
This level 6 unit critically evaluates contemporary understandings of gendered crimes. Providing an understanding of the theoretical perspectives, definitions and understandings of the concept of gender and the crimes men and women are involved in, the unit will seek to assist students’ exploration of current attitudes towards gender within contemporary society and the criminal justice system.
This topic describes the components of the conducting system of the heart and their individual roles. An image illustrates the overall process and shows their relative locations. The topic concludes with a schematic diagram illustrating the direction of blood flow and whether it is oxygenated or de-oxygenated.