87 results found for biology

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00:03:00

Is there life in your PC?

by Norman Billingham
Is there life in your PC?
for 14-19 and upwards,
Discussions | 14-19 and upwards | 4 years ago | 761 views
Rating:

What is there in your computer which is attractive to bacteria and fungi?

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01:14:00

Cuckoos and their victims

by Nick Davies
Cuckoos and their victims
for 14-19 and upwards,
Lectures | 14-19 and upwards | 4 years ago | 741 views
Rating:

The sight of a little warbler feeding an enormous cuckoo chick has astonished observers since ancient times. It was once thought that cuckoos were unable to raise their own young because of defective anatomy and behaviour, and so other birds were onl....

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00:04:00

The Science of Chillies

by Various Presenters
The Science of Chillies
for 14-19 and upwards,
Highschool presentations | 14-19 and upwards | 4 years ago | 1042 views
Rating:

These things are HOT! - and have a variety of biochemical effects.

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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 | 4 years ago | 860 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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00:05:00

Growing gold-banded lilies with fungi

by Tomoha Miyazaki
Growing gold-banded lilies with fungi
for 14-19 and upwards,
Highschool presentations | 14-19 and upwards | 4 years ago | 841 views
Rating:

Tomoha describes her work in helping preserve this threatened species of plant.

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00:07:00

Wheat gets over global warming.

by Nao Sato
Wheat gets over global warming.
for 14-19 and upwards,
Highschool presentations | 14-19 and upwards | 4 years ago | 734 views
Rating:

Nao describes her work in investigating the ways in which wheat can be made to cope with the higher temperatures expected from global warming.

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00:06:00

Soil Recovery by Re-use

by Akira Ise
Soil Recovery by Re-use
for 14-19 and upwards,
Highschool presentations | 14-19 and upwards | 4 years ago | 923 views
Rating:

Aki decribes her experiments in improving soils using various buffering materials.

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00:07:00

Hydrogen fermentation with iron powders

by Yuto Yonebayashi
Hydrogen fermentation with iron powders
for 14-19 and upwards,
Highschool presentations | 14-19 and upwards | 4 years ago | 728 views
Rating:

How iron powder can catalyse bacterial production of hydrogen.

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00:06:00

Stream affect barnacles shell direction

by Shokichi Sugihara
Stream affect barnacles shell direction
for 14-19 and upwards,
Highschool presentations | 14-19 and upwards | 4 years ago | 798 views
Rating:

An interesting look at how the direction of water flow affects shell growth in barnacles.

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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 | 4 years ago | 691 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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01:09:00

Green Fluorescent Protein: Lighting up Life

by Martin Chalfie
Green Fluorescent Protein: Lighting up Life
for 14-19 and upwards,
Lectures | 14-19 and upwards | 5 years ago | 842 views
Rating:

The accidental discovery of this wonderful tool has changed the face of biology.

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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 | 5 years ago | 1108 views
Rating:

Intracellular synthesis is immensely fast and complex.

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01:16:00

The End of Disease

by Roger Kornberg
The End of Disease
for 14-19 and upwards,
Lectures | 14-19 and upwards | 5 years ago | 1005 views
Rating:

The importance of transcription in cells and its effect on disease.

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00:57:00

Understanding the Cell cycle

by Paul Nurse
Understanding the Cell cycle
for 14-19 and upwards,
Lectures | 14-19 and upwards | 5 years ago | 898 views
Rating:

How genes act to control the functioning of cells.

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00:09:00

The biology of Striga

by Various
The biology of Striga
for 14-19 and upwards,
Lectures | 14-19 and upwards | 5 years ago | 912 views
Rating:

One of the major parasites is striga, a weed that sucks the juice and nutrients from cereal crops such as millet, sorghum and maize and causes great yield losses. A single striga plant can produce hundreds of thousands of seeds. The seeds are so tiny....

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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 | 5 years ago | 1396 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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00:05:00

Why the Preservation of the Rhino is Destroying our Planet

by Sam Mackay
Why the Preservation of the Rhino is Destroying our Planet
for 14-19 and upwards,
Highschool presentations | 14-19 and upwards | 5 years ago | 790 views
Rating:

Is there a collision between conserving a single rare species and much wider habitat preservation.

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01:01:00

Genetic control and the mammalian radiation

by Duncan Odom
Genetic control and the mammalian radiation
for 14-19 and upwards,
Lectures | 14-19 and upwards | 5 years ago | 623 views
Rating:

To grow tissues in our body two key types of DNA control how, where and when to build essential proteins. Recent comparisons of mammal genomes show that instructions coding how to build proteins are similar across diverse species. In contrast the gen....

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01:13:00

Targeting the human kinome: cancer drug discovery

by Nicholas Lydon
Targeting the human kinome: cancer drug discovery
for 14-19 and upwards,
Lectures | 14-19 and upwards | 5 years ago | 652 views
Rating:

This lecture discusses how the discovery of the Philadelphia chromosome provided the first example of a link between cancer and a recurrent genetic abnormality. This chromosomal translocation, which results in activation of the Abl protein kinase, re....

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01:01:00

How embryos build organs to last a lifetime

by Brigid Hogan
How embryos build organs to last a lifetime
for 14-19 and upwards,
Lectures | 14-19 and upwards | 5 years ago | 536 views
Rating:

All the organs of our body originate from small founder populations of cells which multiply into complex structures. ÊAdult stem cells are used to maintain organs throughout adult life and to repair or regenerate them after damage.Ê Focusing on the....

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01:02:00

NeuroNavigation: how the brain represents the space we live in and finds our way around

by John O'Keefe
NeuroNavigation: how the brain represents the space we live in and finds our way around
for 14-19 and upwards,
Lectures | 14-19 and upwards | 6 years ago | 1079 views
Rating:

Learning about new environments or locating ourselves in familiar environments are some of the most fundamental tasks that the brain performs. Information is not stored in response to biological needs such as hunger or thirst but on the basis of cogn....

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00:47:00

From bench to bedside: KATP channels and neonatal diabetes

by Frances Ashcroft
From bench to bedside: KATP channels and neonatal diabetes
for 14-19 and upwards,
Lectures | 14-19 and upwards | 6 years ago | 827 views
Rating:

Whether you eat a whole box of chocolates or fast for the day, the pancreatic beta-cells ensure that your blood glucose level remains relatively constant by regulating the release of insulin from the pancreatic beta-cells. Diabetes results when insul....

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01:01:00

Genetic fingerprinting: past, present and future

by Alec Jeffreys
Genetic fingerprinting: past, present and future
for 14-19 and upwards,
Lectures | 14-19 and upwards | 7 years ago | 5746 views
Rating:

Alec Jeffreys presents the origins of DNA fingerprinting through to the latest developments and their social impact

 

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00:10:00

Producing Biogas and Identifying Bacteria

by Yuji Sunaoshi
Producing Biogas and Identifying Bacteria
for 14-19 and upwards,
Highschool presentations | 14-19 and upwards | 7 years ago | 7523 views
Rating:

Bacteria which adhere to plants have ability to produce gases such as hydrogen, methane or ammonia. These are called biogas. Biogas is recognized as new and clean source of energy. I wanted to know what kind of bacteria produce biogas. I isolated bac....

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