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Smoke Detector/Alarm
Description of the principle of operation of a smoke detector/alarm that uses ionising radiation. Diagrams and a simplified circuit are included.
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Farmers' markets
Op het einde van deze les kun je inhoudsvragen over een interview over de Farmers' Markets (boerenmarkten) beantwoorden.
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Marine Mapping
The marine environment is unique and requires technologies that can use sound to gather information since there is little light underwater. The sea-floor is characterized using underwater sound and acoustical systems. Current technological innovations are allowing scientists to further understand and apply information about animal locations and habitat. Remote sensing and exploration with underwater vehicles allows scientists to map and understand the sea floor. Similar technologies also aid in
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2011 Elsie M. Hood Award
English professor Ethel Young Minor has been selected as the 2011 Elsie Hood Teacher of the Year.
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Chemical Engineering Centennial Seminars - March 22, 2011
Aditya Bhan, assistant professor of chemical engineering and materials science at the University of Minnesota, discussed Catalytic Consequences of Spatial Constraints in Acidic Zeolites during the Centennial Seminar on March 22, 2011. https://engineering.purdue.edu/ChE/AboutUs/Centennial/seminars.html
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Entrepreneurship and Corporate Venturing
Course Goals: a) Students will gain an understanding the economic, technological, societal, and global dimensions of entrepreneurship and intrapreneurship. b) Students will understand the major differences between personal entrepreneurship and intrapreneurship, which often occurs in larger mature organizations. c) Students will understand the relationships between personal goals, competencies, and experience to assess what they bring to all types of ventures. d) Students will understand and prac
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Political Cartoons
In this activity, students will research a political issue that is highlighted and discussed on the TakingITGlobal website. Students will pick one issue and write a one page satire on the event/issue. Part 2 of the assignment is for the students to create their own political cartoon using Photoshop or similar software.
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The Language of Algebra
This site provides a brief review of many aspects of algebraic language and use, from symbol sets and fractions to exponents and factoring. Intended as a reference for students already familiar with algebra, it is the first section of the online text Introductory Statistics: Concepts, Models, and Applications. This resource is part of the Teaching Quantitative Skills in the Geosciences collection. http://serc.carleton.edu/quantskills/
Author(s): David Stockburger

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Methods in Biostatistics I
Presents fundamental concepts in applied probability, exploratory data analysis, and statistical inference, focusing on probability and analysis of one and two samples. Topics include discrete and continuous probability models; expectation and variance; central limit theorem; inference, including hypothesis testing and confidence for means, proportions, and counts; maximum likelihood estimation; sample size determinations; elementary non-parametric methods; graphical displays; and data transform
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"Dynamic Optimization Methods with Applications, Fall 2009"
"This course focuses on dynamic optimization methods, both in discrete and in continuous time. We approach these problems from a dynamic programming and optimal control perspective. We also study the dynamic systems that come from the solutions to these problems. The course will illustrate how these techniques are useful in various applications, drawing on many economic examples. However, the focus will remain on gaining a general command of the tools so that they can be applied later in other c
Author(s): Lorenzoni, Guido

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Induction of Nitrate Reductase in Plant Shoots
A laboratory exercise that uses colormetric assay and corn seedling shoots to study the induction of enzyme activity by a substrate.
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Poverty in the United States
In addition to a quantitative analysis that involves univariate, bivariate, and multivariate analysis, this module reinforces research terms introduced in Intro to Sociology (independent, dependent and control variables and includes the opportunity to discuss sample vs. population (in the comparison of national poverty data vs. the poverty rate in the sample) and value vs. variable (poverty as a value and a variable and the recoding of the values in the household data). The module also uses the
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Diversity of leaves
The diversity of land plants can be seen in the diversity of their leaves. Leaves vary by color, vein arrangement, shape, texture, and thickness.
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How do I pay?
Op het einde van deze les kun je bepalen met welke betaalmiddelen jij de congestion charge misschien wel zou betalen en met welk betaalmiddel zeker niet.
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What's Wrong with the Big Bang Theory?
What's Wrong with the Big Bang Theory? - Radio astronomer, award-winning writer and broadcaster Marcus Chown talks to fellow stargazer Fred Watson about what's wrong with the Big Bang theory. (03:07)
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Improved transport shipment of different varieties of bananas
A report on the study done to (1) identify the existing handling practices in the transport shipment of bananas using the modified non-refrigerated vans, (2) determine the profitability of the existing and improved practices in banana transport, (3) reduce losses in mixed varieties of banana through development of local and export-oriented postharvest technology packages, (4) create awareness of the basic concepts of handling, packaging, storage and transport of bananas and; (5) develop product
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Exercice 15 (Arithmétique dans Z) [00349]

Exo7. Exercices de mathématiques pour les étudiants.
Retrouvez la correction écrite sur http://exo7.emath.fr

Nombres premiers de la forme a^n+1.

Bonus (à 3'49'') : nombres de Fermat, exercice.


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Exercice 17 (Arithmétique dans Z) [00341]

Exo7. Exercices de mathématiques pour les étudiants.
Retrouvez la correction écrite sur http://exo7.emath.fr

Bonus (à 7'18'') : principe des tiroirs.


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