Phylogenetic Systematics: Developing an Hypothesis of Amniote Relationships
Biodiversity studies begin with patterns of evolutionary diversification, made possible by phylogenetic systematics. Phylogenetics clusters species into groups depicting their common ancestry based on shared derived characters unique to that group. It is quantifiable, reproducible, and scientifically testable, and has three assumptions: evolution has occurred, there is a single phylogeny of life resulting from evolutionary diversification, and characteristics are passed from generation to genera
Port of London Aquatic Sports (1925)
This Topical Budget newsreel was shot in the Surrey Commercial Docks. Dockworkers, their families and friends can be seen relaxing and participating in various events, including swimming, water polo and high diving. The main trade of these docks is much in evidence in the open-ended timber storage sheds, the floating baulks used as pontoons and the wooden diving tower. Established in 1909, the Port of London Authority continued with the swimming galas organised by its predecessor dock companies
4.4 Plate motion on a spherical Earth
Plate tectonics is an earth sciences topic that attracts a good deal of interest, given that it a topic very often featured in popular science programmes on TV and radio. It is a subject that have strong visual appeal. The coverage is S279 is self-contained, up to date and is written in a way that will be accessible to those with interest and motivation, all the more so for those who have some pre-existing scientific understanding.
Time Dilation Video
Is time different to observers moving at different speeds? For more information, see the World Year of Physics 2005 feature.
Video Transcript: Two spaceships are traveling together through the galaxy at close to the speed of light. Mounted on one ship is a laser that can fire pulses of light, and on the other, a mirror. The pilot of the first ship fires a pulse at the mirror, and watches as it is reflected back. A clock on board measures how long the round trip takes.
But now suppose that he d
WERNER SYNDROME
"Progeria" derives from Greek for 'prematurely old' because the disease usually appears as wrinkling and aging of the face. Progeria occurs in two forms: Progeria of childhood, described by Jonathan Hutchinson (1886) and Hastings Gilford (1897), diagnosed in the first or second year of life and Progeria adultorum commonly indicated as Werner Syndrome. Werner Syndrome is a very rare disorder, with incidence of 1000 cases reported worldwide. Incidence is higher in Sardinia and in Japan with 800 ca
Smoke, Mirrors, and Inflation Expectations Some influential commentators believe that the Federal Reserve's timing for the withdrawal of its record monetary stimulus could be determined by inflation expectations. (A popular measure of inflation expectations is the difference between the interest rate on the 10-year Treasury note and the interest rate on the 10-year Treasury inflation protected security [TIPS]). After settling at 1.5 p
CEOs are overpaid!
Over confident, highly incentivised chief executives fall short of shareholder expectations, a new study reveals
Killdeer eggs
Killdeer are birds, and they lay eggs just like all other birds do. Killdeer lay their eggs on the ground, in gravel, on rooftops, or wherever the splotchy pattern of the eggs may be hidden best. The eggshells are hard for added protection.
5.2 Body size and metabolic rate
From pygmy shrews to armadillos, a wide range of mammals survive on a diet made up largely of insects. Many of these have fascinating adaptations suited to catching or rooting out their prey. In this unit you will learn about these adaptations, along with survival strategies for when food is scarce. This is the second unit in the ‘Studying mammals’ series.
3.8.1 Standard deviation: finding how reproducible a series of measurements are
You might not realise it, but maths is an essential component of healthcare. In fact, sloppy calculations can have fatal consequences. This unit is a taster of Level 1 course materials for a Foundation Degree in health sciences, and is designed for those contemplating a future in the health services industry.
3.3 Types of graphs and their uses
You might not realise it, but maths is an essential component of healthcare. In fact, sloppy calculations can have fatal consequences. This unit is a taster of Level 1 course materials for a Foundation Degree in health sciences, and is designed for those contemplating a future in the health services industry.
The Harlem Renaissance (2:53)
As African Americans flocked to Northern cities in the 1920s, they created a new social and cultural landscape and this video shows how this helped provide the ingredients that resulted in an abundance of creativity from writers, to artists, to singers. Excellent overview.
3 spots left for J-Pop & J-Rock Program!
Thank you to those who have already signed up! どうもありがとうございます♪ We are going to learn very useful vocabulary from the newest Bleach ending theme, called, Aoi tori. There are 3 spots left! If you enjoy listening to J-Pop or J-Rock, then don’t miss this opportunity! Starts: Monday, June 20 Ends: Friday, June 24 3 [...]
Practising Open Education (ART & DESIGN)
Practising Open Education (ART & DESIGN)
Six Little Ducks Animated Song with Words
Cute version of Six Little Ducks. Words appear at bottom of screen as the narrator sings. Cute animation plays. This is a good resource for the early childhood classroom. (1:13)
Five Little Monkeys Jumping on the Bed Animated Song with Words
Cute version of Five Little Monkeys Jumping on the Bed. The words appear at bottom of screen as the narrators reads the rhyme. This is a good resource for the early childhood classroom. (1:20)
Improving the Odds for a Nation of Mothers
Throughout the world, over 350,000 women die each year from pregnancy-related complications. In this report, Pulitzer Center's grantee Samantha Danis shows how Belize tries to improve maternal health care in hopes of reducing the risks for pregnant women.
This is one of the winning stories from Pulitzer Center's Youtube Project: Report 2010. You can find the other winners here: http://bit.ly/pfLI4U
