11.4 Signal duration Since hearing is largely a matter of stimulus reception over time, we would expect time to influence the perception of sound. It has been known for many years that both absolute thresholds and the loudness of sounds depend upon signal duration. The studies of absolute threshold described earlier were all carried out with tone bursts of relatively long duration. For durations exceeding 500 ms, the sound intensity at threshold is roughly independent of duration. However for durations of less th
Arithmetic Sequences
OpenStax College
In this section, you will:
Sick Insurance: Making Private Health Insurance Markets Work for Patients and Providers
The USC Schaeffer Center for Health Policy and Economics hosted a conference Oct. 22, 2010, titled, "Health Reform and the Economy: Are They Good for Each Other?" Conference panels examined critical reform issues related to reducing costs, improving quality, ensuring innovation and changing health care delivery. The assembly of renowned speakers from government, academia and industry presented different views -- some were concerned that health reform will not control costs, while others believed
12.753 Geodynamics Seminar (MIT)
The Earth's crust is primarily composed of melting products from mantle plumes and mid-ocean ridges - both presently and over the course of Earth history. While both systems represent upwelling features in a convective mantle, they can be viewed as end-member systems in that plumes represent buoyant flow whereas mid-ocean ridges represent passive corner flow. This paradigm is not strict - flow beneath ridges may be buoyant in some places, for example, but it does provide a reasonable framework f
4 Working with other stakeholders When considering the accountability of the governing body, we need to think about the context of the school and the community it serves. The DfES states quite clearly that the school and its governing body are accountable to anyone who has a ‘legitimate interest’. You might like to spend some time considering who these people are. In terms of providing both high-quality education and, consequently, an educated workforce, pupils, parents and the wider community are the ‘customersâ€
18.465 Topics in Statistics: Statistical Learning Theory (MIT)
The main goal of this course is to study the generalization ability of a number of popular machine learning algorithms such as boosting, support vector machines and neural networks. Topics include Vapnik-Chervonenkis theory, concentration inequalities in product spaces, and other elements of empirical process theory.
3.1 Introduction The binding of features emerges as being a very significant process when displays are brief, because there is so little time in which to unite them. With normal viewing, such as when you examine the letters and words on this page, it is not obvious to introspection that binding is taking place. However, if, as explained above, it is a necessary precursor to conscious awareness, the process must also occur when we examine long-lived visual displays. Researchers have attempted to demonstrate th
7.345 Survival in Extreme Conditions: The Bacterial Stress Response (MIT)
Bacteria survive in almost all environments on Earth, including some considered extremely harsh. From the steaming hot springs of Yellowstone to the frozen tundra of the arctic to the barren deserts of Chile, microbes have been found thriving. Their tenacity to survive in such extreme and varied conditions allows them to play fundamental roles in global nutrient cycling. Microbes also cause a wide range of human diseases and can survive inhospitable conditions found in the human body. In this co
21F.704 Spanish IV (MIT)
Spanish IV aims at developing and improving student's oral and written communication through the continued study of the language, literature and culture of Spain, Latin America and Hispanic communities in the United States. It also seeks to improve students' ability to read and appreciate literary and non-literary texts in Spanish, deepening this way students' awareness and understanding of the cultural diversity of the Spanish-speaking world. The course is organized by themes based on contempor
RockeTHON at UT
Media Coverage
Terry Hodgkinson Inaugural Lecture
Terry has led the Regional Development Agency, Yorkshire Forward, as its Chair for seven years, overseeing the Agency in growing the economy of the Yorkshire and Humber region. He was honoured in the Queen’s Birthday Honours 2010 with the award of a CBE for services to business and regeneration and was recently appointed as a Deputy Lieutenant for West Yorkshire. He has recently launched his new business, entitled ‘Inspiration for Industry Education and Regeneration’. He holds a Visiting P
Virtual Maths Data Handling - Light Meter tool
Light Meter simulation tool
1.4.2 Displacements and bearings The displacement from a point P to a point
Q is the change of position between the two points, as
described by the displacement vector
If P and Q represent places on the
ground, then it is natural to use a bearing
The painted garden
Freelance garden historian Russell Bowes looks at the history of gardening giving a virtual tour of some of the great art galleries of the world.
Evaluation of 'Business Enterprise' Module
This report outlines a process of evaluation for a business enterprise module. This exploratory research investigates the impact of 'contextual' based evaluation of enterprise education curricula
Edu365. Relato de un náufrago
0 min. VÃdeo. Generalitat de Catalunya (Departament d'Ensenyament).
Aquest arxiu d'à udio reprodueix els sons de les gavines que sentia el nà ufrag del llibre Relato de un náufrago, de G. GarcÃa Márquez.  
Undefined Terms: Point, Line, and Plane
In Geometry, there are three undefined terms: point, line, and plane. This video describes these terms and explains how all other terms in Geometry can be defined from these three undefined terms. (3:24)
Inverse Laplace Transforms Example 2b
John Taylor
Demonstrates the use of a table to find the inverse Laplace transform of a rational expression involving a quadratic.
Some Rights Res
Chapter 1 Reading of ;Lord of the Flies
An excerpt is read from chapter 1 of Lord of the Flies by William Golding. The background in the video is a beach scene.
3.3.1 Mapmaking for the twenty-first century In early mapmaking history, maps were compiled from travellers’ tales, sailors’ logs and other maps. Information could, therefore, come from various sources and different dates. By the nineteenth century, maps were being made by more technically and scientifically rigorous procedures. Recently, mapmaking has benefited from developments in electronic surveillance techniques and computer programming. The Ordnance Surveys are now using aerial photography coupled with detailed checking on the
