The pet dogs ability for learning from a human demonstrator in a detour task is independent from the breed and age

Theta bandwidth determines human visual

Theta bandwidth determines human visual working memory capacity Human visual short term memory (VSTM) is capacity limited1. The neurophysiological basis for this limitation is, however, currently unknown. Here we apply the principle of efficient information transfer, derived from communications theory, to provide a mechanistic account of VSTM capacity. Shannon's information theory states that to increase the capacity of information encoded along a frequency axis, it is more efficient to expand the bandwidth than to increase the transmitted power for a given level of noise2. By applying Shannon's principles to human magnetoencephalography (MEG) recordings of oscillatory activity in the theta band during a VSTM task, we demonstrate that increasing memory load to capacity induces a parametric shift in theta frequency band during the delay period, from 4 to 8 Hz, in a right fronto-parietal network. Critically, we show that an individual's VSTM capacity is proportional to that parametric shift. Thus, the adherence of cortical neuronal oscillations to a fundamental principle of efficient information transfer appears to underlie the limited nature of visual representation in short-term memory.

✍ Moran, R.J.; Strange, B.A.; Campo, P.; Dolan, R.J. 📂 Article 📅 2009 🏛 Elsevier Science 🌐 English ⚖ 142 KB

Louis Farrakhan: from Mosque Maryam , at

Louis Farrakhan: from Mosque Maryam , attack on America -David Duke: Una carta abierta al Presidente de los EE.UU.¡Pero por favor díganos toda la verdad!Learning from the September 11 Attacks - By Mark Weber - IHR -Nous ne sommes pas des Américainspar , Serge Thion - David Duke´s letter to the President of the United States -To President Bush: halt funding for Israel: We must cut off the source of terrorism -Jews and Crime - Radio Islam - Ahmed Rami - Palestine - Judaism - Zionism - America supported the Israeli ethnic cleansing of 700,000 Palestinians - human rights! America is accused of supporting terrorism for backing Israel, to killed 40,000 Lebanese - How the President of the United States could dinein the White House with Israel Sharon, a man with a proven history of massacring civilians, and who even Israel held responsible for the cold-blooded murder of 2000 people at the Sabra and Shatila camps in Lebanon. America is also called a terrorist state for causing the death of more than 500,000 Iraqi children.

✍ Farrakhan 📂 Fiction 📅 0 🌐 Spanish ⚖ 37 KB 👁 1 views

Renal insufficiency and anemia are indep

Renal insufficiency and anemia are independent risk factors for death among patients with acute myocardial infarction1,21As published material, the contents of this manuscript may not be cited, quoted, reproduced or published without the consent of the authors.2The analyses upon which this publication is based were performed under Contract Number 500-96-P704, entitled âOperation Utilization and Quality Control Peer Review Organization (PRO) for the State of Georgiaâ and sponsored by the Centers for Medicare and Medicaid Services (CMS), Department of Health and Human Services. The conclusions and opinions expressed, and methods used herein are those of the authors. They do not necessarily reflect CMS policy. The authors assume full responsibility for the accuracy and completeness of the ideas presented. This article is a direct result of the Health Care Quality Improvement Program initiated by CMS, which has encouraged identification of quality improvement projects derived from analysis of patterns of care, and therefore required no special funding on the part of this Contractor. Ideas and contributions to the authors concerning experience in engaging with issues presented are welcomed.

✍ Langston, Robert D.; Presley, Rodney; Flanders, W. Dana; Mcclellan, William M. 📂 Article 📅 2003 🏛 Nature Publishing Group 🌐 English ⚖ 373 KB

Bio-Assays for Oxidative Stress Status |

Bio-Assays for Oxidative Stress Status || IN VIVO TOTAL ANTIOXIDANT CAPACITY: COMPARISON OF DIFFERENT ANALYTICAL METHODS11Mention of a trade name, proprietary product, or specific equipment does not constitute a guarantee by the U.S. Department of Agriculture and does not imply its approval to the exclusion of other products that may be suitable.Address correspondence to: R. L. Prior, Ph.D., USDA, ARS, HNRCA, 711 Washington St., Boston, MA 02111, USA; Tel: (617) 556–3311; Fax: (617) 556-3222; E-Mail: [email protected]. Ronald Prior is a Nutritionist and Laboratory Chief of the Phytochemical Laboratory at the Jean Mayer USDA Human Nutrition Research Center on Aging (HNRCA) at Tufts University, Boston, MA. Dr. Prior received his B.S. degree with honors from the University of Nebraska and he received his Ph.D. in Nutrition and Biochemistry from Cornell University in 1972. Dr. Prior has worked with the USDA for more than 20 years.During the past 12 years at the HNRCA, he has been Scientific Program Officer and has directed research activities dealing with the role of flavonoid and other phenolic food components on antioxidant status, their metabolism, and relationships to diseases of aging.Guohua Cao, M.D., Ph.D., is currently a Scientist II at HNRCA. Dr. Cao studied medicine in Nantong Medical College in 1979 and at Nanjing Medical University in 1984. He obtained his Ph.D. in nutritional biochemistry from Beijing Medical University in 1990. Dr. Cao came to the United States in 1991 and worked at NIH where he was instrumental in developing the ORAC method.

✍ PRIOR, RONALD L. 📂 Article 📅 2001 🏛 Elsevier 🌐 English ⚖ 986 KB

This work contains over thirty chapters by leading researchers in the field of oxidative biology, originally presented as articles in an extended Forum in the highly-cited journal, *Free Radical Biology & Medicine*. The papers in this Forum (or Symposium-in-print) spanned seven issues of the journal

Evaluation of the endocrine response of

Evaluation of the endocrine response of cattle during the relocation process☆☆☆☆The U.S. Department of Agriculture (USDA) prohibits discrimination in all its programs and activities on the basis of race, color, national origin, age, disability, and where applicable, sex, marital status, familial status, parental status, religion, sexual orientation, genetic information, political beliefs, reprisal, or because all or part of an individual's income is derived from any public assistance program. (Not all prohibited bases apply to all programs.) Persons with disabilities who require alternative means for communication of program information (Braille, large print, audiotape, etc.) should contact USDA's TARGET Center at (202) 720-2600 (voice and TDD). To file a complaint of discrimination, write to USDA, Director, Office of Civil Rights, 1400 Independence Avenue, S.W., Washington, D.C. 20250-9410, or call (800) 795-3272 (voice) or (202) 720-6382 (TDD). USDA is an equal opportunity provider and employer.

✍ Falkenberg, S.M.; Carroll, J.A.; Keisler, D.H.; Sartin, J.L.; Elsasser, T.H.; Bu 📂 Article 📅 2013 🏛 Elsevier Science 🌐 English ⚖ 561 KB