How to Pronounce Sialic
Learn how to say Sialic correctly with EmmaSaying #39;s "how do you pronounce" free tutorials. Definition of sialic acid (oxford dictionary): noun [mass noun] Biochemistry a substance present in saliva which consists of acyl derivatives of neuraminic acid. Origin: 1950s: sialic from Greek sialon #39;saliva #39; + -ic http://www.emmasaying.com Take a look at my comparison tutorials here http://www.youtube.com Subscribe to my channel here : http://www.youtube.com

By: Emma Saying

More here:
How to Pronounce Sialic - Video

Joseph Hibbeln - Omega-3 Fatty Acids and Mental Health
Joseph Hibbeln discusses the important role Omega 3 Fatty acids play in Mental Health and overall well-being. Lead Clinical Investigator, Unit on Nutrition in Psychiatry, NIAAA, Washington USA; and a Commander in the United States Public Health Service CAPT Joseph R Hibbeln MD is Acting Chief of Section of Nutritional Neurosciences, Laboratory of Membrane Biophysics and Biochemistry, National Institute on Alcohol Abuse and Alcoholism at the National Institutes of Health, Bethesda, Maryland, USA.

By: FroggyTWrite

See the original post here:
Joseph Hibbeln - Omega-3 Fatty Acids and Mental Health - Video

How to Pronounce Backbone
Learn how to say Backbone correctly with EmmaSaying #39;s "how do you pronounce" free tutorials. Definition of backbone (oxford dictionary): noun 1the series of vertebrae extending from the skull to the pelvis; the spine: prickles of sweat broke out along her backbone figurative the great Pennine range is the backbone of England US the spine of a book. Biochemistry the main chain of a polymeric molecule. 2the chief support of a system or organization: these firms are the backbone of our industrial sector [mass noun] strength of character: he has enough backbone to see us through this difficulty 3 Computing Telecommunications a high-speed, high-capacity digital connection which forms the axis of a local or wide area network. http://www.emmasaying.com Take a look at my comparison tutorials here http://www.youtube.com Subscribe to my channel here : http://www.youtube.com

By: Emma Saying

The rest is here:
How to Pronounce Backbone - Video

How to Pronounce Backbones
Learn how to say Backbones correctly with EmmaSaying #39;s "how do you pronounce" free tutorials. Definition of backbone (oxford dictionary): noun 1the series of vertebrae extending from the skull to the pelvis; the spine: prickles of sweat broke out along her backbone figurative the great Pennine range is the backbone of England US the spine of a book. Biochemistry the main chain of a polymeric molecule. 2the chief support of a system or organization: these firms are the backbone of our industrial sector [mass noun] strength of character: he has enough backbone to see us through this difficulty 3 Computing Telecommunications a high-speed, high-capacity digital connection which forms the axis of a local or wide area network. http://www.emmasaying.com Take a look at my comparison tutorials here http://www.youtube.com Subscribe to my channel here : http://www.youtube.com

By: Emma Saying

Read the rest here:
How to Pronounce Backbones - Video

George FR Ellis, On the Nature of Cosmology Today (2012 Copernicus Center Lecture)
Cosmology is today a precision science with masses of high quality data every increasing our understanding of the physical universe, but paradoxically theoretical cosmology is simultaneously increasingly proposing theories based on ever more hypothetical physics, or concepts that are untestable even in principle (such as the multiverse). We are also seeing ever more dogmatic claims about how scientific cosmology can solve philosophical problems that have been with us for millenia. This talk comments in these trends, carefully distinguishing what is and what is not testable in scientific cosmology, and relating this solid scientific background to some of the recent philosophical claims made about how scientific cosmology relates to issues of meaning. The fourth Copernicus Center Lecture - "On the Nature of Cosmology Today" - was delivered by Professor George Ellis, a famous cosmologist, mathematician, philosopher of science as well as researcher of the relationship between science and religion, currently Emeritus Distinguished Professor of Complex Systems in the Department of Mathematics at the University of Cape Town in South Africa. The 2012 Copernicus Center Lecture was part of the 16th Kraków Methodological Conference - "The Causal Universe", which was co-organized by the Copenicus Center for Interdisciplinary Studies. Conference website: causal-universe.philosophyinscience.com Photos of the conference Organizers #39; comment: To date, the natural sciences provide ...

By: CopernicusCenter

Here is the original post:
George FR Ellis, On the Nature of Cosmology Today (2012 Copernicus Center Lecture) - Video

Basic Tutorial on Chemical Reactions With Cinnamon Rolls
http://www.sciencetutoronline.com This week #39;s video covers some basic terms and rules regarding chemical reactions. We #39;ll also take a quick look at conservation of matter and stoichiometry. If you #39;re at all familiar with chemistry already, you #39;ll be able to skip this one. It #39;s meant for a complete beginner. Check out last week #39;s video on chemical bonds, or the videos on metabolism, photosynthesis and biochemistry. But don #39;t forget to head on over to my website to download a recipe for the cinnamon rolls featured in the video. http

By: ScienceTutorOnline

The rest is here:
Basic Tutorial on Chemical Reactions With Cinnamon Rolls - Video

Irritable Bowel Syndrome Symptoms In Women
ibs-cure.plus101.com Irritable Bowel Syndrome Symptoms In Women. During my years at University studying biochemistry and nutrition, I learned that given the right nutrients and natural substances, the body can heal itself of practically any condition or disease. My training thought me how specific nutrients and extracts can lower blood pressure, reduce cholesterol, treat depression, reverse atherosclerosis, cure eczema, restore color to graying hair, shrink warts, halt and even reverse the growth of tumors... I couldn #39;t help but be convinced that somewhere in nature, there was a cure for my IBS. I NEEDED to find that cure... Irritable, Bowel, Syndrome, Symptoms, In, Women, cure for ibs, cures for ibs, natural cures for ibs, ibs diet, ibs symptoms, ibs treatment, treatment for ibs, how to cure ibs, how to treat ibs, ibs symptoms in men, ibs symptoms in women, ibs foods to avoid, ibs treatments, treatments for ibs, irritable bowl syndrome, probiotics for ibs, foods to avoid with ibs, causes of ibs, ibs remedies, best treatment for ibs, ibs with constipation

By: CureHomeHealth

Go here to read the rest:
Irritable Bowel Syndrome Symptoms In Women - Video

Jan. 28, 2013 To ensure that the genetic material is equally and accurately distributed to the two daughter cells during cell division, the DNA fibers must have an ordered structure and be closely packed. At the Max Planck Institute of Biochemistry in Martinsried near Munich scientists have now elucidated the structure of a ring-shaped protein complex (SMC-kleisin), which ensures order in this packaging process. Together with their cooperation partners at the Korea Advanced Institute of Science and Technology, they studied these proteins in bacteria and found structural analogies to the human complex.

The findings have now been published in the journal Nature Structural & Molecular Biology.

In each cell about two meters of DNA must fit into a cell nucleus that has a diameter of only a few thousandths of a millimeter. There the DNA is organized in individual chromosomes in the form of very long filaments. If they are not equally and accurately distributed to the daughter cells during cell division, this can result in cancer or genetic defects such as trisomy 21. Therefore, to ensure safe transport of DNA during cell division the long and coiled DNA fibers must be tightly packed.

Scientists have only a sketchy understanding of this step. The SMC-kleisin protein complexes play a key role in this process. They consist of two arms (SMC) and a bridge (kleisin). The arms wrap around the DNA like a ring and thus can connect duplicated chromosomes or two distant parts of the same chromosome with each other.

Learning from bacteria Simple organisms like bacteria also use this method of DNA packaging. The scientists, in collaboration with colleagues from South Korea, have now elucidated the structure of a precursor of human SMC-kleisin complexes of the bacterium Bacillus subtilis. The researchers showed that the bacterial SMC-kleisin complex has two arms made of identical SMC proteins that form a ring. The arms differ in their function only through the different ends of the kleisin protein with which they are connected.

In humans the DNA packaging machinery is similarly organized. "We suspect that this asymmetric structure plays an important role in the opening and closing of the ring around the DNA," explains Frank Brmann, PhD student in the research group 'Chromosome Organization and Dynamics' of Stephan Gruber. In addition, the scientists discovered how the ends of the kleisin can distinguish between correct and wrong binding sites on one pair of arms.

The cohesion of chromosomes is of critical importance for reproduction as well. In human eggs this cohesion must be maintained for decades to ensure error-free meiosis of the egg cell. Failure of cohesion is a likely cause for decreased fertility due to age or the occurrence of genetic defects such as trisomy 21. "The elucidation of the structure of SMC-kleisin protein complexes is an important milestone in understanding the intricate organization of chromosomes," says group leader Stephan Gruber.

Share this story on Facebook, Twitter, and Google:

Other social bookmarking and sharing tools:

Story Source:

Read the original:
What holds chromosomes together? Structure of DNA-packaging proteins described