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https://wis-wander.weizmann.ac.il/life-sciences/thesaurus-brain’s-“language”
November 20, 2015
The neurons in our brain communicate in a language that is encoded within patterns of joint electrical activity. We could try to catalog a “dictionary” of the individual words in those patterns, but learning from such a dictionary would be impractical: There are a huge number of...
https://wis-wander.weizmann.ac.il/life-sciences/molecular-machinery-finding-missing-ninth-piece
October 26, 2015
he so-called COP9 signalosome was thought to be made of eight different proteins that operate as a single machine. Its function is to regulate ubiquitination – a process in which proteins that need to be eliminated from the cell are first marked with a small tag called ubiquitin....
https://wis-wander.weizmann.ac.il/life-sciences/blood-forming-stem-cells-balancing-act
November 3, 2015
When you cut your finger and bleed, the clotting that begins right away prevents blood loss and infection. At the same time, rare blood-forming stem cells far off in your bone marrow are called upon to replace the lost blood cells and provide healing immune cells. Recent Weizmann...
https://wis-wander.weizmann.ac.il/chemistry/stick-and-slip
September 1, 2015
What do the sounds of a creaky old hinge and a cello have in common? Both rely on the same kind of friction: two surfaces that alternately stick and slide against one another. This physical phenomenon is called stick-slip and, in the case of the creaky hinge, it is often mitigate...
https://wis-wander.weizmann.ac.il/space-physics/dr-boaz-katz-new-model-stellar-explosions
October 22, 2015
A threesome is a potentially explosive arrangement. That may be as true for the stars as it is for people: Dr. Boaz Katz believes that a three-body model could explain many of the huge stellar explosions known as supernovae. In this model, which he and his colleagues Drs. Subo Do...
https://wis-wander.weizmann.ac.il/math-computer-science/therapy-numbers
October 20, 2015
Mathematical computations, equations and computer languages are not the first thing one thinks of when looking for ways to improve therapies that treat patients with drawing, painting, music or dance. But Dr. Billie Sandak, in the research group of Prof. David Harel of the Weizma...
https://wis-wander.weizmann.ac.il/life-sciences/how-cells-spit-it-out
January 1, 2016
Saliva, teardrops, bile – all kinds of vital bodily fluids are produced in specialized cells whose sole function is to secrete one particular substance on demand. These cells are essentially closed, walled systems. How are they able to move large amounts of these substances to th...
https://wis-wander.weizmann.ac.il/life-sciences/blood-sugar-levels-response-foods-are-highly-individual
November 19, 2015
Which is more likely to raise blood sugar levels: sushi or ice cream? According to a Weizmann Institute study reported in the November 19 issue of the journal Cell, the answer varies from one person to another. The study, which continuously monitored blood sugar levels in...
https://wis-wander.weizmann.ac.il/space-physics/xenon1t-dark-matter-experiment-launched
November 12, 2015
There is five times more dark matter in the Universe than so-called normal matter – the atoms and molecules that we know. Yet we still don’t know what makes up this dark component. Yesterday, an international collaboration of scientists inaugurated the new XENON1T experiment, whi...
https://wis-wander.weizmann.ac.il/life-sciences/rare-disease-lens-cancer
November 24, 2015
What can a rare genetic childhood disease teach us about cancer? Dr. Ayelet Erez of the Weizmann Institute’s Biological Regulation Department says: “A single-mutation disease can act as a ‘lens.’ If we find exactly what malfunctions in the sick child, we can zoom in and understan...
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18.11.2020
Times of Israel
18.11.2020