207 results found for biology

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Witch-weed 00:12:00

‘Witch Weed’ – breaking the spell

by Various
‘Witch Weed’ – breaking the spell
for 14-19 and upwards,
Lectures | 14-19 and upwards | 3 years ago | 1120 views
Rating:

Striga (witchweed) is a parasitic weed that seriously constrains the productivity of staples such as maize, sorghum, millet and upland rice on some farms in Uganda.  Kilimo Trust supported this initiative to try and control its spread.

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Slide49 00:03:00

2014 3MT Competition Finals: A Behavioral and Molecular Examination of “Umami” Taste

by Kimberly Smith
2014 3MT Competition Finals: A Behavioral and Molecular Examination of “Umami” Taste
for 18-22 and upwards22 and upwards,
Postgraduate presentations | 18-22 and upwards22 and upwards | 3 years ago | 7062 views
Rating:

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Slide1 00:03:00

2014 3MT Competition Finals: Histone Variant H3.3 is Required for DNA Repair

by Sarah Burkhart
2014 3MT Competition Finals: Histone Variant H3.3 is Required for DNA Repair
for 18-22 and upwards22 and upwards,
Postgraduate presentations | 18-22 and upwards22 and upwards | 3 years ago | 2850 views
Rating:

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Slide63 00:03:00

2014 3MT Competition Finals: Resistance Training & Protein Supplementation on Body Composition in Breast Cancer Survivors

by Takudzwa Madzima
2014 3MT Competition Finals: Resistance Training & Protein Supplementation on Body Composition in Breast Cancer Survivors
for 18-22 and upwards22 and upwards,
Postgraduate presentations | 18-22 and upwards22 and upwards | 3 years ago | 910 views
Rating:

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Liss 00:14:00

A biochemist investigating Parkinson’s Disease

by Birgit Liss
A biochemist investigating Parkinson’s Disease
for 14-19 and upwards,
Lectures | 14-19 and upwards | 9 years ago | 1220 views
Rating:

Dr Liss investigates Parkinson's disease with genetics

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a crime 00:27:00

A Crime against Humanity

by Richard Roberts
A Crime against Humanity
for 18-22 and upwards,
Lectures | 18-22 and upwards | 3 years ago | 845 views
Rating:

When Monsanto first tried to introduce GMO seeds into Europe there was a backlash by the Green parties and their political allies, who feared that American agro-business was about to take over their food supply. Thus began a massive campaign not agai....

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Fisher 01:16:00

A molecular window into speech and language

by Simon Fisher
A molecular window into speech and language
for 18-22 and upwards,
Lectures | 18-22 and upwards | 8 years ago | 1061 views
Rating:

Our capacity for complex speech and language remains one of the most intriguing aspects of being human. It has long been suspected that some answers to this enigma will be found buried within the genome. With recent advances in genetic technologies, ....

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A Personal View - L-N - Wuthrich - Meddicine 2014 00:36:00

A Personal View of the History of Nuclear Magnetic Resonance in Biology and Medicine

by Kurt Wurthrich
A Personal View of the History of Nuclear Magnetic Resonance in Biology and Medicine
for 18-22 and upwards,
Lectures | 18-22 and upwards | 4 years ago | 946 views
Rating:

In 1952, Felix Bloch and Edward Purcell were awarded the Nobel Prize in Physics for the description of the phenomenon of nuclear magnetic resonance (NMR). Over the years, NMR has been used in a wide range of fundamental studies in physics, and in the....

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A Worm's Tale 01:12:00

A Worm’s Tale: Secrets of Inheritance and Immortality

by Craig Mello
A Worm’s Tale: Secrets of Inheritance and Immortality
for 14-19 and upwards,
Lectures | 14-19 and upwards | 3 years ago | 927 views
Rating:

Intracellular synthesis is immensely fast and complex.

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Moncada 01:09:00

Adventures in vascular biology

by Salvador Moncada
Adventures in vascular biology
for 18-22 and upwards,
Lectures | 18-22 and upwards | 8 years ago | 948 views
Rating:

Thirty years ago it was thought that the endothelium, a layer of thin, flat cells that line the interior surface of blood vessels was inert. However, major discoveries since then have demonstrated that it is a highly metabolic organ involved in maint....

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Hill 00:10:00

Anti-oxidants

by Ryan Hill
Anti-oxidants
for 14-19 and upwards,
Lectures | 14-19 and upwards | 8 years ago | 1103 views
Rating:

Anti-oxidants and their importance in diet

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CapturFiles_17 00:53:00

Are Genetically Modified Foods Safe?

by Various Presenters
Are Genetically Modified Foods Safe?
for 18-22 and upwards,
Discussions | 18-22 and upwards | 9 years ago | 1101 views
Rating:

There have been many arguments for and against GM Foods, but the question still stands - are they potential saviors of mankind or a disaster waiting to happen? This award winning video covers a range of important issues, discussed by scientists with ....

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Atmosphere - L-N - Crutzen - Chem 2009 00:31:00

Atmosphere Climate and Chemistry in the Anthropocene

by Paul Crutzen
Atmosphere Climate and Chemistry in the Anthropocene
for 18-22 and upwards,
Lectures | 18-22 and upwards | 4 years ago | 755 views
Rating:

Despite their relatively small mass, 10-5% of the earth biosphere as a whole, generations of ambitious 'homo sapiens' have already played a major and increasing role in changing basic properties of the atmosphere and the earth's surface. Human activ....

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Bacterial cell walls, antibiotics and the origins of life 01:10:00

Bacterial cell walls, antibiotics and the origins of life

by Jeff Errington
Bacterial cell walls, antibiotics and the origins of life
for 14-19 and upwards,
Lectures | 14-19 and upwards | 3 years ago | 525 views
Rating:

The cell wall is a crucial structure found in almost all bacteria. It is the target for our best antibiotics and fragments of the wall trigger powerful innate immune responses against infection. Surprisingly, many bacteria can switch almost effortl....

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Sakmann 00:04:00

Bert Sakmann

by Bert Sakmann
Bert Sakmann
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 865 views
Rating:

Winner of the Nobel Prize 1991 in Physiology / Medicine 1991 together with Erwin Neher 'for their discoveries concerning the function of single ion channels in cells'

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Lander 01:19:00

Beyond the human genome project

by Eric Lander
Beyond the human genome project
for 18-22 and upwards,
Lectures | 18-22 and upwards | 8 years ago | 1055 views
Rating:

Dr Lander and his colleagues have developed many of the key tools and generated many of the key information resources for modern mammalian genomics. Their work includes mapping and sequencing of the human, mouse, and other genomes. He was elected a m....

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Rueda 00:10:00

Bioenergetics of Cancer Cells

by Elda Rueda
Bioenergetics of Cancer Cells
for 18-22 and upwards,
Lectures | 18-22 and upwards | 7 years ago | 872 views
Rating:

A brief summary from the literature about cancer cells' metabolism; 1) the major pathways cancer cells use to generate energy and macromolecules efficiently and rapidly and 2) the enzymes cancer cells up-regulate to control those pathways.

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Biological Evolution - Lindau-Nobel - Werner Arber - Medicine 2014 00:31:00

Biological Evolution in the Context of Cosmic Evolution and of Cultural Evolution

by Werner Arber
Biological Evolution in the Context of Cosmic Evolution and of Cultural Evolution
for 18-22 and upwards,
Lectures | 18-22 and upwards | 4 years ago | 778 views
Rating:

After reconsidering the very long time periods in cosmic evolution, we will focus our attention to the evolutionary development of living organisms on our planet Earth. The genetic variants (mutations), which are occasionally produced, are alteratio....

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Purcell 00:11:00

Body Fuel for Long Distances

by Sarah Purcell
Body Fuel for Long Distances
for 14-19 and upwards,
Undergraduate presentations | 14-19 and upwards | 8 years ago | 950 views
Rating:

In my geoset project I will be discussing the effects of nutrition in long distance endurance. Topics include saturating carbohydrate stores before a race, the Krebs (citric acid) cycle, the effects of dehydration and hyponatremia, and replenishing y....

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Tessier-Lavigne2 01:12:00

Brain development and brain repair.

by Marc Tessier-Lavigne
Brain development and brain repair.
for 18-22 and upwards,
Lectures | 18-22 and upwards | 8 years ago | 865 views
Rating:

The human brain is made up of close to a trillion nerve cells (or neurons), each of which makes connections with, on average, hundreds of other nerve cells, to form the complex neuronal circuits that control all brain activities, including perception....

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Medina 00:09:00

Breast Cancer Susceptibility Gene BRCA2

by Angelica Medina
Breast Cancer Susceptibility Gene BRCA2
for 18-22 and upwards,
Lectures | 18-22 and upwards | 7 years ago | 754 views
Rating:

BRAC2 is a tumor suppressor gene. Its protein product interacts with other proteins to assist regulation of DNA repair, transcription and cell cycle checkpoints. BRAC2 gene disruption may lead to protein truncation, mutations and loss of function. Ce....

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Toybox 10 ecoli 00:03:00

Bugs and trash

by Various Presenters
Bugs and trash
for 18-22 and upwards,
Lectures | 18-22 and upwards | 6 years ago | 1224 views
Rating:

Using microorganisms to clear pollution.

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Can the wheat 00:05:00

Can the wheat which grows in dry areas solve the food crisis?

by Chiho Motokawa
Can the wheat which grows in dry areas solve the food crisis?
for 14-19 and upwards,
Highschool presentations | 14-19 and upwards | 3 years ago | 709 views
Rating:

Chiho describes her important work in looking for varieties of wheat which could help increase food production in arid areas.

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Merrel 00:07:00

Cape Gannets

by Sarah Merrel
Cape Gannets
for 14-19 and upwards,
Undergraduate presentations | 14-19 and upwards | 8 years ago | 934 views
Rating:

Study on Cape Gannets, a new prey for quickly adapting Great White Pelicans on Malgas Island, South Africa. First observed in 2008. Result of indirect human involvement; Cape Gannets should be reconsidered for conservation management.

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