Detectable Civilizations in Our Galaxy, Part 5
Using a well-known formula, Mr. Khan focuses on a framework for thinking about how many detectable civilizations are out there. He uses computer software for instruction. (05:09In this segment, Mr. Khan tries to explain the reasons why we haven't detected any other civilizations yet.
PediNeuroLogic Exam: Newborn: Normal: Reflexes - Plantar Reflex
The normal response to stroking the lateral aspect of the plantar surface of the foot is extension of the great toe and fanning of the other toes. If the stimulus is brought across the ball of the foot then a grasp reflex will be elicited and the toes will plantar flex. The up going toes or 'Babinski sign' is normal in the infant and may be present for the first year of life because of the incomplete myelination of the corticospinal tracts. A neuroscience tutorial focusing on those aspects of th
Maryland Drought: Side by Side Comparison of Loch Raven in May and August, 1999
Side-by-side comparison of Loch Raven, Maryland in May and August, 1999, from Landsat imagery
Introduction to drug clearance
Provides a definition of clearance and a basic explanation of the processes
Photo Slideshow: UA Poetry Center Holds First Summer Camp
The UA Poetry Center is hosting its first camps for middle and high school students this summer. The first, Creative Writing in 3D, will be followed by others on myth making and detective skills, engaging youth in interactive and creative events.
This patient education program discusses Lyme disease including the cause, symptoms, diagnosis, treatment, and prevention. This resource is a MedlinePlus Interactive Health Tutorial from the National Library of Medicine, designed and developed by the Patient Education Institute.
USC Dentistry: International Periodontal & Implant Symposium 2011 (Cho)
George C. Cho presented a lecture titled "Optimum Implant Gingival Esthetics: With or Without Cad/Cam?" as part of the 36th annual USC Periodontal and Implant Symposium held in Los Angeles in 2011. An associate professor in the Division of Restorative Sciences, co-director of advanced education in prosthodontics and director of predoctoral implant dentistry at the Herman Ostrow School of Dentistry of USC, Cho received his dental degree in 1987, graduated from the Ostrow School's Advanced Educat
4.42J Fundamentals of Energy in Buildings (MIT)
This design-based subject provides a first course in energy and thermo-sciences with applications to sustainable energy-efficient architecture and building technology. No previous experience with subject matter is assumed. After taking this subject, students will understand introductory thermodynamics and heat transfer, know the leading order factors in building energy use, and have creatively employed their understanding of energy fundamentals and knowledge of building energy use in innovative
How does the board of governors of a school work? This unit looks at the roles of Chair of Governors, Vice-chair and Clerk to the board and examines how the workload can be shared between the members. The governing body should focus on the quality and delivery of education provided by the school, not on daily management.
Zoom into an Arbitrary Field near Des Moines, Iowa
This Landsat Thematic Mapper image uses shortwave infrared, infrared, and visible (green) channels to show the city of Des Moines, Iowa and the agricultural regions around it.
Mitochondrial DNA from Lumbriculus variegatus: Isolation and Restriction Digest Analysis
In this activity, mitochondria are isolated from the California blackworm, Lumbriculus variegatus, by homogenization and differential centrifugation. A modified plasmid miniprep procedure (alkaline lysis) is then used to isolate DNA from these mitochondria. Single and double enzyme restriction digests of mitochondrial DNA (mtDNA) are analyzed by agarose gel electrophoresis. Sizes of mtDNA restriction fragments are estimated from gel results and are used to determine the total size of the L. vari
16.06.2011 – Langsam gesprochene Nachrichten
Trainieren Sie Ihr Hörverstehen mit authentischen Materialien. Nutzen Sie die Nachrichten der Deutschen Welle von Donnerstag – als Text und als verständlich gesprochene Audio-Datei.Der Ministerpräsident des hoch verschuldeten Griechenlands, Giorgos Papandreou, hat unter dem Druck von Massenprotesten gegen seinen Sparkurs für diesen Donnerstag eine Umbildung seines Kabinetts angekündigt. Am Sonntag wolle er im Parlament die Vertrauensfrage stellen, sagte der sozialistische Politiker im Fer
HTML Training Video
This video is broken down into sections from the introductions, source code, editing, mark-up language, page structure, tags, links, to going live. Each step is very clear with examples. (84:27)
Life Of Birds; Meat Eaters
This is a 50-minute BBC documentary on birds that eat meat. This video is suitable for middle school and high school students. 49:16
This student made music video teaches the conjugation rules for Spanish grammar. The music video is sung to a Justin Timberlake tune. Lyrics are also provided on the screen. Run time 03:02.
Plastics Go Green
ChemMatters is celebrating the 40th anniversary of Earth Day with its second episode, which highlights how scientists are trying to make plastic, one of the world's most abundant man-made materials, more environmentally friendly. In this episode, find out how scientists are developing more environmentally friendly plastics using plant materials. By 2020, these “bioplastics” could provide an alternative for about a fifth of the estimated 200 billion pounds of plastics manufactures produce eac
Learn about hurricanes, how they form and what you can do to stay safe in this short, computer-animated video. Key concepts include: hurricane formation, hurricanes over water, hurricanes over land, tropical storms, meteorologists, hurrican watches, hurricane warmings, hurricane safety, and hurricane classification.
How Hurricanes are born from NASA
A downloadable video that shows how hurricanes are born by following the birth of Isabel from Africa to the United States. Needs some vocabulary to be fully understood. Also needs a large class map to help follow the video. Good explanation of how warm and cold ocean waters impact hurricanes. Effective video best downloaded.
Sesame Street - Rap#19
This short, animated video from "Sesame Street" is a rap that talks about the number 19. It shows a wide variety of groups of 19 items and shows the number several times.