Element Concentration Game
The computer will display a number of cards with the names and symbols of the elements. After you have had time to study the cards, the computer will flip them over and ask you to find a particular element. Click on the card that contains that element.
Students use a Although atoms contain both negatively and positively charged particles, they do so in equal amounts and carry no net charge. This balance can be temporarily disrupted by rubbing one material against another. One device, known as a Van de Graaff generator, uses a fast moving rubber belt to charge a metallic dome to nearly 200,000 Volts. This activity uses a Van de Graaff generator to study the behavior of electrical charges.
NASA CONNECT Data Analysis and Measurement: Dancing in the Night Sky
In NASA CONNECT Dancing in the Night Sky, students will learn about the Aurora Borealis or Northern Lights. They will learn the many legends and myths that have revolved around the aurora throughout the history of mankind. Students will also discover how NASA scientists and engineers use satellite technology to measure and analyze aurora data. They will see how Norwegian scientists apply the concepts of data analysis and measurement to study the Northern Lights by using ground-based instruments
O processo de desenvolvimento da ferramenta cidade interativa [The Developmental Process of an Inter
This paper exposes site .Cidade Interativa. development process, based on: a reflection about importance of users. points of view.s incorporation for space remodelling; a study about theoretical and practical experiences which, in different ways, approached potencialities of participation of a community.s members in a project; and, finally, a investigation of propagation alternatives of individual readings as information source for urban project, trying to enhance points of view that generally r
NASA CONNECT Better Health from Space to Earth
In NASA CONNECT Better Health From Space to Earth, students will learn about the importance of good nutrition and exercise. They will investigate what we can learn in space about our bodies here on Earth. Students will see how researchers and scientists apply the mathematics concepts of measurement and estimation to study the loss of calcium in bones and the loss of muscle mass while astronauts are living and working in space. Grades 6-8.
Lecsture on ‘Sir J.G.Frazer: Science and Sensibility’
The Frazer Lecture on the legacy of J.G.Frazer, which Godfrey Lienhardt suggests is greater in the field of literature (through its influence on people like T.S.Elliot in the ‘Waste Land’ than on the science of anthropology.,The Frazer Lecture was given in Cambridge by Godfrey Lienhardt on 5th March 1992, well after he had retired. It was chaired by Dr. Alan Macfarlane and was filmed by Humphrey Hinton, using a video 8 camera. The lecture lasts about 45 minutes.
Reflections on using film in fieldwork
These reflections on filming among the Gurungs were made in the autumn of 2000 A.D. Alan Macfarlane talked into the camera in order to capture some of the types of film he made, the changing technologies, and some tips on how to film in the field. This was filmed on 3-chip digital video. The clips should be viewed over broadband.,The history of my early filming and photography on an 8mm film camera, 1968-1987 Filming on video from 1988; the advantages What should one film? Finding a theme Fil
Medicine Games: Incredible Megacell Game
Play a game and find out about a Nobel Prize awarded discovery or work! The compartments of the cell, the organelles, are so small that it was impossible to study their structure until the electron microscope became available in 1938. Albert Claude, Christian de Duve and George E. Palade were awarded the Nobel Prize in Physiology or Medicine in 1974 for developing methods making it possible to take a closer look at the organelles and for discovering some of them.
Alternative small scale meteorology input to a chemical transport model
In order to respond to the increasing demand for better understanding of the environment, air quality studies at different scales are required. The Community Multi-scale Air Quality Model (CMAQ) chemical transport model is designed to handle all major scales of interest. However, the meteorology input to the model has to represent adequately the atmospheric conditions at these scales. So far, the meteorological input to CMAQ has been supplied by the Fifth-Generation Pennsylvania State University
Joint source-channel decoding for robust transmission of video
Motivated by the need for robust transmission of video, an approach to joint-source channel decoding is presented. While this work is focused on transmission of video, the results are applicable to most forms of multimedia. A general overview of the proposed video coding system is given and its individual components are introduced. Since correct reception of synchronization patterns is essential for successful decoding of compressed bitstreams, detection of a periodically embedded synchronizatio
Model testing of passive site stabilization
Passive site stabilization is a new technology proposed for use in mitigation of liquefaction risk at developed sites. Liquefaction is the rapid loss of strength caused by earthquakes, typically found in saturated sands or loose fills, which causes the formation to flow like later. Liquefaction has been known to be a very costly occurrence claiming many lives, damaging structures and businesses, and costing billions of dollars in repairs; however, sites can be remediated to prevent liquefaction.
Study of Non-Newtonian viscosity and yield stress of blood in a scanning capillary-tube rheometer (A Abstract: The study of hemorheology has been of great interest in the fields of biomedical engineering and medical researches for many years. Although a number of researchers have investigated correlations between whole blood viscosity and arterial diseases, stroke, hypertension, diabetes, smoking, aging, and gender, the medi
Study of Non-Newtonian viscosity and yield stress of blood in a scanning capillary-tube rheometer (A). Ph.D. dissertation. Mechanical Engineering and Mechanics. 2002.
Abstract: The study of hemorheology has been of great interest in the fields of biomedical engineering and medical researches for many years. Although a number of researchers have investigated correlations between whole blood viscosity and arterial diseases, stroke, hypertension, diabetes, smoking, aging, and gender, the medi
Synthesis and characterization of the properties of Ti3SiC2/SiC and Ti3SiC2/TiC composites
In 1996, the ternary compound titanium silicon carbide (Ti3SiC2) was for the first timesynthesized as a single-phase, fully dense compound. Its characterization revealed aunique combination of properties. For its high fracture toughness, low hardness toelastic modulus ratio and excellent damage tolerance, it was dubbed a soft ceramic. Italso displayed good thermal shock and oxidation resistance. In this work, thereinforcement of this material with silicon carbide and titanium carbide particles w
Type 1 diabetic model (A)
Diabetes mellitus is a chronic metabolic disease characterized by the uncoupling of bloodglucose levels and insulin secretion, causing abnormal glycemic excursions. Type 1diabetes is characterized by a complete insulin deficiency. Treatment consists ofattempting to match exogenous insulin delivery to the metabolic needs of the patientduring meals, exercise, and sleep. The objective is to minimize the frequency and severityof glycemic excursions and, more importantly, avoid hypoglycemic episodes.
Implications of resource management in La Parguera, Puerto Rico (The)
A recent rezoning of La Parguera, southwest Puerto Rico, as a tourist zone has resulted in an imbalance between development and appropriate resource management. Development associated with tourism is destroying the sub-tropical dry forest and adding pressure on the marine resources through increased boat traffic and marine structures. Declining water quality and benthic community health are two of the impacts seen in La Parguera associated with these land use changes. This study is three-fold. F
Fault-tolerant distributed shared memory on a broadcast-based interconnection architecture
This thesis focuses on the issue of reliability and fault tolerance in Distributed Shared Memory Multiprocessors, and on the performance impact of implementing fault tolerance protocols that allow for Backward Error Recovery through the use of synchronized checkpointing. High Performance Parallel computing systems that implement Distributed Shared Memory (DSM) require interconnection networks capable of providing low latency and high bandwidth and efficient support for multicast and synchronizat
Numerical simulation of chlorine disinfection processes in non-ideal reactors
The efficacy of disinfection processes in water purification systems is governed by several key factors including reactor hydraulics, disinfectant chemistry and microbial inactivation kinetics. The objective of this work was to develop a computational fluid dynamics (CFD) model to predict flow structure, mass transport, chlorine decay and microbial inactivation in a continuous flow reactor. The significance of this dissertation is that comprehensive 3D numerical model was developed to address al
Novel organic-inorganic hybrid mesoporous materials and nanocomposites
Organic-inorganic hybrid mesoporous materials have been prepared successfully via the nonsurfactant templated sol-gel pathway using dibenzoyl-L-tartaric acid (DBTA) as the templating compound. Styrene and methyl methacrylate polymers have been incorporated into the mesoporous silica matrix on the molecular level. The synthetic conditions have been systematically studied and optimized. Titania based mesoporous materials have also been made using nonionic polyethylene glycol surfactant as the pore
Africa: Peace Corps
offers lessons on stories, letters, photos, and study units from experiences of Peace Corps volunteers across Africa. Topics include folk tales and patterns in them, racial prejudice in South Africa, life in a village of Tanzania, traditional healers and HIV/AIDS, the meaning of wealth, sharing and generosity, what it takes to be a hero, time and punctuality, perspectives of different cultures, and water.
Recording School Desegregation: Conduct Your Own Oral History Project
In this unit, students will research the history of school desegregation, and bring that history to life by listening to oral histories of North Carolinians who lived through desegregation. Students will then become historians, recording their own oral histories with relatives or community members, and reflecting on the experience through writing. The oral histories will be collected into a final project and placed in the school’s library for students and teachers to study in the future.