Hibernation is an ingenious adaptation that some animals employ to survive difficult conditions in winter. This unit examines the differences between hibernation and torpor, and discusses the characteristic signs of hibernation behaviour. It explores the triggers that bring on hibernation, and whether internal signals or external season cues are predominant. It also examines the physiological adaptations that occur in hibernating animals. This unit builds on and develops ideas introduced in the
Private Equity Steps Up in Africa – Part II
This second part of a two-part podcast on the new face of private equity (PE) in Africa looks at the areas of the economy most ripe for growth, and also at some business models that PE firms are pursuing.
På fredagen berättade Klartext om 23 kvinnor som är misstänkta för att ha samlat på olagliga sex-bilder på barn. Vi berättade också vilka personer som har chansen att bli nya ledare för Miljöpartiet.
Strength of Materials
Students learn about the variety of materials used by engineers in the design and construction of modern bridges. They also find out about the material properties important to bridge construction and consider the advantages and disadvantages of steel and concrete as common bridge-building materials to handle compressive and tensile forces.
Ferns attached to a forest rock
Ferns have small, branched leaves, not to reduce gas exchange and water loss, but to increase the surface area for spore producing structures. This demonstrates that plants develop certain characteristics for very different reasons.
Skyscrapers: Engineering Up!
Skyscrapers are one of the most glorified products of Civil Engineering and contain an interesting history of progress and development. In this lesson, the students will learn about the history of the world's tallest free standing structures and the basic design principles behind their success. Students will build their own newspaper skyscrapers with limited materials and time, trying to achieve a maximum height and the ability to withstand a "hurricane wind" force. Discussion will concentrate o
Pathophysiology of Infectious Diseases
Medical Microbiology is a vast and ever expanding complex field. The role of microbes in chronic illness, like coronary disease and arthritis, continues to evolve. For example, in the Emerging Infections and Agents of Biological Warfare Lecture, one will learn that while advances in identification, culture techniques, diagnosis and treatment have led to remarkable improvements in the consequences of infectious diseases worldwide in the past quarter century, newly identified pathogens continue to
Trace Elements and Isotopes
This 93-slide PowerPoint presentation is part of the Whitman College petrology course. The presentation discusses the compatibility of elements, addressing Goldschmidt's Rules, fractionation, and bulk distribution coefficients. Other topics described include batch melting, fractional crystallization, Rayleigh fractionation, rare-earth elements, large-ion-lithophile and high field strength elements. This resource is part of the Teaching Petrology collection. http://serc.carleton.edu/NAGTWorkshops
Tardigrade Species Distribution Project: Lesson Plan
This online lesson plan was designed for students taking part in the active research project to document the distribution of a new species of tardigrade, a microscopic invertebrate animal. The project is part of a nationwide online collaborative research project. The lesson plan offers instructional procedures for teachers and lists materials and procedures for collecting, observing, and culturing tardigrades. The lesson involves collecting samples in the field, examining and classifying tartigr
Cleaning Your Trombone
Nick LaRivere demonstrates how to clean your trombone.
Chinese Chestnut Tree Identification
The Chinese Chestnut is commonly mistaken for the American Chestnut. Here are some pointers on the differences between the two. The American Chestnut Society is attempting to re-establish the latter in the North American forest, and biotype diversity requires many American Chestnut crosses with resistant forms.
Annelids are segmented animals. They have soft bodies and no legs. They usually move by crawling.
Animal Studies: Turtle
This turtle has a back full of green, mossy algae. When the turtle is stationary in the water, it can camouflage itself to look like a moss-covered rock.
In this video from Outdoor Nevada, learn about the habitat, diet, and defense mechanisms of horned lizards.
Primary Lateral Sclerosis - Cranial Nerves Exam - Facial Nerve (CN VII) Sub-exam - Patient 14
This video features a 54-year-old white male who presented for evaluation of progressive spastic paraparesis. He stated that symptoms first started in 1997 when "things were different with my legs" (i.e., leg weakness, imbalance, and speech problems). Symptoms started in his left foot, when he couldn't keep time to music. His feet started dragging and he also noticed problems with balance. In 1999, he started falling and sought medical attention. He was diagnosed with spastic paraparesis after
Spastic Paraplegia - Motor Exam - Muscle Strength Sub-exam - Patient 5
This video features a 54-year-old white male with a history of spastic paraplegia (diagnosed in 1994) and no previous history of heart disease or cardiac workup. He presented to the Emergency Room complaining of three days on-and-off retrosternal chest pain. Patient presented to the ER complaining of three days on-and-off retrosternal chest pain, rated 3/10, lasting approximately 30 minutes, occurring multiple times daily at rest or during activity. The first episode occurred three days before
science experiment with acetic acid and sodium bicarbonate
Science experiment with acetic acid and sodium bicarbonate (baking soda and vinegar) giving off carbon dioxide among other things
Don't Crack Humpty
Student groups are provided with a generic car base. The groups then design a device/enclosure that will protect an egg on or in the car as it is rolled down a ramp at increasing slopes. Students will be expected to perform basic mathematical calculations using their data.
Vocabulary, writing, grammar: Guten Tag, liebe Freunde!
You learn write a personal small ad in which you introduce yourself. You practice the declension of the articles.
No Valve in Vain
In this activity, students will design and create their own heart valves out of a variety of materials given to them, including: waterproof tape, plastic tubing, flexible plastic sheets, foam sheets, scissors, clay, etc. This activity will not only test their understanding of how a one-way valve works and its purpose, but will also allow them a chance to think outside of the box and practice engineering problem-solving.