90 results found for biology

View Grid List
Sort A-Z By date
00:35:00

Telomeres: Telling Tails

by Elizabeth Blackburn
Telomeres: Telling Tails
for 18-22 and upwards,
Lectures | 18-22 and upwards | 8 years ago | 1849 views
Rating:

Telomeres protect chromosome ends and help stabilize the genome. Throughout human life and in aging, telomeres often erode down, eventually causing cells to malfunction or die. The highly regulated cellular enzyme telomerase adds telomeric DNA to tel....

More details | Watch now
00:29:00

The Killer Defence

by Peter Doherty
The Killer Defence
for 18-22 and upwards,
Lectures | 18-22 and upwards | 8 years ago | 1460 views
Rating:

Immune surveillance by virus-specific CD8+ cytotoxic T lymphocytes (CTLs), or killer T cells, has long been known to be central to the control of acute infections and some cancers, though the role of CTL memory in the rapid recall of immune protectio....

More details | Watch now
00:31:00

Minimizing a Bacterial Genome by Global Design and Synthesis

by Hamilton Smith
Minimizing a Bacterial Genome by Global Design and Synthesis
for 18-22 and upwards,
Lectures | 18-22 and upwards | 8 years ago | 2137 views
Rating:

In 2010, we chemically synthesized the 1078 Kb Mycoplasma mycoides genome and transplanted it into a recipient cell cytoplasm to create a 'synthetic cell', JCVI-syn1.0 (Science, 329, 52-56, 2010). We identified several hundred non-essential genes by ....

More details | Watch now
00:39:00

Role of Nitric Oxide and Cyclic GMP in Cell Signaling and Drug Development

by Ferid Murad
Role of Nitric Oxide and Cyclic GMP in Cell Signaling and Drug Development
for 18-22 and upwards,
Lectures | 18-22 and upwards | 8 years ago | 1778 views
Rating:

Nitric oxide research has grown rapidly with about 150,000 research publications describing its biological effects. It is an important messenger molecule that affects most tissues and biological processes. Many effects of nitric oxide are mediated by....

More details | Watch now
00:30:00

Ion Channels: Their Discovery, their Function and their Role in Diseases

by Erwin Neher
Ion Channels: Their Discovery, their Function and their Role in Diseases
for 18-22 and upwards,
Lectures | 18-22 and upwards | 8 years ago | 1559 views
Rating:

The concept of bioelectricity emerged in the late 18th century, based on the experiments of Galvani and Volta. Sixty years ago, Hodgkin and Huxley showed that the nerve impulse is a result of permeability changes of the nerve membrane. This raised th....

More details | Watch now
00:31:00

The Origins of Cellular Life

by Jack Szostak
The Origins of Cellular Life
for 18-22 and upwards,
Lectures | 18-22 and upwards | 8 years ago | 1612 views
Rating:

The complexity of modern biological life has long made it difficult to understand how life could emerge spontaneously from the chemistry of the early earth. We are attempting to synthesize simple artificial cells in order to discover plausible pathwa....

More details | Watch now
00:30:00

The Origin of Reversible Protein Phosphorylation as a Regulatory Mechanism

by Edmond Fischer
The Origin of Reversible Protein Phosphorylation as a Regulatory Mechanism
for 18-22 and upwards,
Lectures | 18-22 and upwards | 8 years ago | 1658 views
Rating:

Reversible protein phosphorylation can be considered one of the most prevalent mechanism by which eukaryotic cellular events are regulated. It is directly involved in numerous pathological conditions, and bacterial and viral diseases. This process wa....

More details | Watch now
00:27:00

A Crime against Humanity

by Richard Roberts
A Crime against Humanity
for 18-22 and upwards,
Lectures | 18-22 and upwards | 8 years ago | 1707 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....

More details | Watch now
00:31:00

Finding Mutations that Affect Immunity

by Bruce Beutler
Finding Mutations that Affect Immunity
for 18-22 and upwards,
Lectures | 18-22 and upwards | 8 years ago | 1606 views
Rating:

Beginning with an exception to normal function caused by a genetic aberration, one may hope to find at least one protein with non-redundant function in a certain biological process. This approach permitted the identification of the receptor for bacte....

More details | Watch now
00:34:00

Insight into the Laws of Nature for Biological Evolution

by Werner Arber
Insight into the Laws of Nature for Biological Evolution
for 18-22 and upwards,
Lectures | 18-22 and upwards | 8 years ago | 1708 views
Rating:

Both evolutionary biology and genetics have their roots 150 years ago in work with phenotypic variants of plants and animals. In contrast, microbial genetics originating as recently as the 1940s, rapidly revealed that filamentous DNA molecules are th....

More details | Watch now
00:29:00

From Proto-oncogenes to Precision Oncology

by Harold Varmus
From Proto-oncogenes to Precision Oncology
for 18-22 and upwards,
Lectures | 18-22 and upwards | 8 years ago | 1814 views
Rating:

The diagnosis, classification, and treatment of human cancers are being transformed by scientific discoveries that were strongly influenced by the discovery of the c-src proto-oncogene, as described in the lecture by Michael Bishop. The path to this ....

More details | Watch now
00:32:00

Tickling Worms – Surprises from Basic Research

by Martin Chalfie
Tickling Worms – Surprises from Basic Research
for 18-22 and upwards,
Lectures | 18-22 and upwards | 8 years ago | 1350 views
Rating:

Research, at least my research, has never been linear. I have found that my lab and I often double back on problems after years of inactivity or go off in entirely new directions as dictated by the work and people's interests This lack of direction r....

More details | Watch now
00:29:00

How to Model the Action of Complex Biological Systems on a Molecular Level

by Arieh Warshel
How to Model the Action of Complex Biological Systems on a Molecular Level
for 18-22 and upwards,
Lectures | 18-22 and upwards | 8 years ago | 2103 views
Rating:

Despite the enormous advances in structural studies of biological systems we are frequently left without a clear structure function correlation and cannot fully describe how different systems actually work. This introduces a major challenge for compu....

More details | Watch now
00:25:00

Physical perspective on cytoplasmic streaming

by Ray Goldstein
Physical perspective on cytoplasmic streaming
for 18-22 and upwards,
Lectures | 18-22 and upwards | 8 years ago | 1280 views
Rating:

Professor Ray Goldstein FRS is the Schlumberger Professor of Complex Physical Systems at the University of Cambridge. Here he describes a biological example of topological inversion, with relevance to engineering problems in human technology.

More details | Watch now
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 | 9 years ago | 1948 views
Rating:

More details | Watch now
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 | 9 years ago | 4496 views
Rating:

More details | Watch now
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 | 9 years ago | 12092 views
Rating:

More details | Watch now
00:37:00

Generating the Fuel of Life

by John Walker
Generating the Fuel of Life
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1372 views
Rating:

The lecture will be devoted to the topic of how the biological world supplies itself with energy to make biology work, and what medical consequences ensue when the energy supply chain in our bodies is damaged or defective. We derive our energy from ....

More details | Watch now
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 | 9 years ago | 1589 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....

More details | Watch now
00:33:00

Structural Biology and its Translation into Practice and Business: My Experience

by Robert Huber
Structural Biology and its Translation into Practice and Business: My Experience
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1588 views
Rating:

As a student in the early 1960s, I had the privilege to attend winter seminars organized by my mentor, W. Hoppe, and by M. Perutz, which took place in a small guesthouse in the Bavarian-Austrian Alps. The entire community of a handful of protein cry....

More details | Watch now
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 | 9 years ago | 1755 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....

More details | Watch now
00:34:00

Synthetic Biology for Genetic Engineering in the 21st Century

by Hamilton Smith
Synthetic Biology for Genetic Engineering in the 21st Century
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1349 views
Rating:

Synthetic biologists seek to design, build, and test novel biological systems. We have chemically synthesized a bacterial genome (Mycoplsama mycoides, 1078Kb) and brought it to life by transplantation into the cytoplasm of a related species. We are....

More details | Watch now
00:32:00

The Revolution of Personalized Medicine: Are We Going to Cure All Diseases and at What Price?

by Aaron Ciechanover
The Revolution of Personalized Medicine: Are We Going to Cure All Diseases and at What Price?
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1467 views
Rating:

Many important drugs such as penicillin, aspirin, or digitalis, were discovered by serendipity - some by curious researchers who accidentally noted a "strange" phenomenon, and some by isolation of active ingredients form plants known for centuries to....

More details | Watch now
00:31:00

Multiscale Simulations of the Functions of Biological Molecules

by Arieh Warshel
Multiscale Simulations of the Functions of Biological Molecules
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 2771 views
Rating:

Despite enormous advances in structural studies of biological systems we are frequently left without a clear structure-function correlation and cannot fully describe how different systems actually work. This introduces a major challenge for computer....

More details | Watch now
00:35:00

GFP and After

by Martin Chalfie
GFP and After
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1696 views
Rating:

Since its introduction as a biological marker, the Aequorea victoria Green Fluorescent Protein (GFP) has had a strong impact in biology, being used in an ever-increasing variety of ways. I will review a bit of the history of GFP and show how having ....

More details | Watch now
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 | 9 years ago | 1346 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....

More details | Watch now
00:47:00

Nanomaterials as growth effectors and imaging agents in rice plants and its scope in plant science

by Remya Nair
Nanomaterials as growth effectors and imaging agents in rice plants and its scope in plant science
for 18-22 and upwards,
Postgraduate presentations | 18-22 and upwards | 10 years ago | 2169 views
Rating:

Ramya talks about the ways in which nanomaterials can affect rice-plant growth and also be used for imaging purposes.  This talk was part of her PhD thesis defence.

More details | Watch now
00:56:00

Prospects of extremophiles and sulfated polysaccharides in bionanotechnology and biomedicine

by Sreejith Raveendran
Prospects of extremophiles and sulfated polysaccharides in bionanotechnology and biomedicine
for 18-22 and upwards,
Postgraduate presentations | 18-22 and upwards | 10 years ago | 1848 views
Rating:

During his PhD thesis defence lecture, Sreejith looks at some novel prospects for biomedicine.

More details | Watch now
00:58:00

Investigating the ribosome inactivating protein-curcin, as a protent therapeutic candidate in nano-drug delivery systems

by Mohamed Seikh Mohamed
Investigating the ribosome inactivating protein-curcin, as a protent therapeutic candidate in nano-drug delivery systems
for 18-22 and upwards,
Postgraduate presentations | 18-22 and upwards | 10 years ago | 1653 views
Rating:

During the defence of his doctoral thesis, Mohamed describes his work and investigation of curcin, the ribosome-inactivating protein and the ways it may be used in the treatment of cancer.

More details | Watch now
00:33:00

Synthesis and characterization of targeted nano-regulators as potential therapeutic agents for controlling Alzheimer’s disease

by Anila Mathew
Synthesis and characterization of targeted nano-regulators as potential therapeutic agents for controlling Alzheimer’s disease
for 18-22 and upwards,
Postgraduate presentations | 18-22 and upwards | 10 years ago | 1456 views
Rating:

In her PhD dissertation lecture, Anila describes the use of nano-particles in the treatment of Alzheimer's Disease.

More details | Watch now
00:42:00

Development of electrical and electrochemical biosensors based on aptamer-conjugated carbon nanotubes and glucose oxidase immobilized carbon nanotubes

by Saino Hanna Varghese
Development of electrical and electrochemical biosensors based on aptamer-conjugated carbon nanotubes and glucose oxidase immobilized carbon nanotubes
for 18-22 and upwards,
Postgraduate presentations | 18-22 and upwards | 10 years ago | 2194 views
Rating:

Saino describes her success in developing electrochemical biosensors during her PhD course at Toyo University.

More details | Watch now
01:17:00

Genetics, epigenetics and disease

by Adrian Bird
Genetics, epigenetics and disease
for 18-22 and upwards,
Lectures | 18-22 and upwards | 11 years ago | 1804 views
Rating:

The human genome sequence has been available for more than a decade, but its significance is still not fully understood. While most human genes have been identified, there is much to learn about the DNA signals that control them. This lecture describ....

More details | Watch now
01:04:00

Molecular chaperones: how cells stop proteins from misbehaving

by R. John Ellis
Molecular chaperones: how cells stop proteins from misbehaving
for 18-22 and upwards,
Lectures | 18-22 and upwards | 11 years ago | 2567 views
Rating:

Proteins are the action molecules of all cells, and to function properly, protein chains must fold and assemble correctly. But each chain of every protein runs the risk that it will combine with one or more identical chains to form nonfunctional aggr....

More details | Watch now
01:03:00

From bears’ winter-sleep to advanced antibiotics

by Ada Yonath
From bears’ winter-sleep to advanced antibiotics
for 18-22 and upwards,
Lectures | 18-22 and upwards | 11 years ago | 1412 views
Rating:

Professor Ada Yonath, Weizmann Institute of Science, Israel.  To facilitate instant recovery of active life once bears wake up from their winter sleep, nature provides ingenious mechanism based on periodic packing of their ribosomes, the cellular ma....

More details | Watch now
01:07:00

Finding patterns in genes and proteins: decoding the logic of molecular interactions

by Sara Teichmann
Finding patterns in genes and proteins: decoding the logic of molecular interactions
for 18-22 and upwards,
Lectures | 18-22 and upwards | 11 years ago | 1662 views
Rating:

Dr Sarah Teichmann is based at the MRC Laboratory of Molecular Biology at the University of Cambridge.  In the post-genomic era, high-throughput methods are providing us with a deluge of data about genes and proteins. What knowledge about biology do....

More details | Watch now
00:58:00

Regenerating organs and other small challenges

by Molly Stevens
Regenerating organs and other small challenges
for 18-22 and upwards,
Lectures | 18-22 and upwards | 11 years ago | 1265 views
Rating:

A disagreeable side effect of longer life-spans is the failure of one part of the body – the knees, for example – before the body as a whole is ready to surrender. The search for replacement body parts has fueled the highly interdisciplinary fiel....

More details | Watch now
00:16:00

Using polymers to reduce bacteria in wounds

by Sheila MacNeil
Using polymers to reduce bacteria in wounds
for 18-22 and upwards,
Lectures | 18-22 and upwards | 11 years ago | 1887 views
Rating:

A research group provide details of their work in helping wounds to heal by developing polymers that will reduce the bacterial infections

More details | Watch now
00:13:00

How plants colonised the land millions of years ago

by Claire Humphreys
How plants colonised the land millions of years ago
for 18-22 and upwards,
Lectures | 18-22 and upwards | 11 years ago | 1557 views
Rating:

Functional nature of mycorrhizal-like symbiosis in a liverwort

More details | Watch now
00:29:00

Social and anti-social cells

by Dawn Walker
Social and anti-social cells
for 18-22 and upwards,
Lectures | 18-22 and upwards | 11 years ago | 1438 views
Rating:

More details | Watch now
00:18:00

Using synthetic biology techniques to manipulate carotenoid biosynthetic pathways

by Paul Davison
Using synthetic biology techniques to manipulate carotenoid biosynthetic pathways
for 18-22 and upwards,
Lectures | 18-22 and upwards | 11 years ago | 10002 views
Rating:

More details | Watch now
00:13:00

Tisue Engineering of the Cleft Palate

by Frazer Bye
Tisue Engineering of the Cleft Palate
for 18-22 and upwards,
Postgraduate presentations | 18-22 and upwards | 11 years ago | 1491 views
Rating:

Overview of research that seeks to find a better intervention to correct a cleft palate

More details | Watch now
00:14:00

Tissue engineering

by Nadir Osman
Tissue engineering
for 18-22 and upwards,
Lectures | 18-22 and upwards | 11 years ago | 1452 views
Rating:

The challenge of tissue-engineering - a repair material for use in pelvic floor surgery

More details | Watch now
00:03:00

The social life of cells

by Rod Smallwood
The social life of cells
for 18-22 and upwards,
Lectures | 18-22 and upwards | 11 years ago | 1433 views
Rating:

How do cells communicate with each other?

More details | Watch now
00:02:00

Using polymers to detect bacteria

by Sheila MacNeil
Using polymers to detect bacteria
for 18-22 and upwards,
Lectures | 18-22 and upwards | 11 years ago | 1966 views
Rating:

How can we make early detection of bacterial wound infection easier.

More details | Watch now
00:01:00

Making bacteria glow to aid healing

by Sheila MacNeil
Making bacteria glow to aid healing
for 18-22 and upwards,
Lectures | 18-22 and upwards | 11 years ago | 3372 views
Rating:

Sheila MacNeil outlines an interesting technique.

More details | Watch now
00:02:00

Raman spectra of bacteria on nano particles

by Wei Huang
Raman spectra of bacteria on nano particles
for 18-22 and upwards,
Lectures | 18-22 and upwards | 11 years ago | 5057 views
Rating:

How we can use the Raman spectra of bacteria on nano particles

More details | Watch now
00:03:00

Bugs and trash

by Various Presenters
Bugs and trash
for 18-22 and upwards,
Lectures | 18-22 and upwards | 11 years ago | 2091 views
Rating:

Using microorganisms to clear pollution.

More details | Watch now
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 | 12 years ago | 1385 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....

More details | Watch now

Items per page: