Daily application of parathyroid hormone (PTH 1-34) is used for treatment of osteoporosis. It was investigated whether orchiectomy-induced osteoporotic changes in spine can be ameliorated by every 48h administration of PTH in aged male rats. Eight-month-old male Sprague-Dawley rats were sham operated (n=24) or orchiectomized (Orx, n=36) and maintained untreated over 12 weeks. Thereafter, both t...

عصاره گیاه رزماری، 4 برابر آنتی­اکسیدان‌­های مصنوعی مانند BHT و BHA خاصیت آنتی­اکسیدانی دارد. رزمارینیک اسید نه تنها به دلیل خواص قوی مورد توجه است بلکه خصوصیات ضدالتهابی، ضدتوموری، ضدباکتریایی، ضدویروسی ضدسرطانی را نیز در پژوهش‌­های مختلف نشان داده است. هدف از این تحقیق، بررسی اثرات دما، زمان، pH غلظت پرتودیده نشان‌دارسازی آن با رادیوایزوتوپ گالیم-67 عنوان یک عامل تصویربرداری وضوح بالا برای تو...

In 1914 S. Ramanujan recorded a list of 17 series for 1/π. We survey the methods of proofs of Ramanujan’s formulae and indicate recently discovered generalisations, some of which are not yet proven. Let us start with two significant events of the 20th century, in the opposite historical order. At first glance, the stories might be thought of a different nature. In 1978, R. Apéry showed the irra...

In 1914 S. Ramanujan recorded a list of 17 series for 1/π. We survey the methods of proofs of Ramanujan’s formulae and indicate recently discovered generalizations, some of which are not yet proven. The twentieth century was full of mathematical discoveries. Here we expose two significant contributions from that time, in reverse chronological order. At first glance, the stories might be thought...

Endothelial cell proteinase activated receptors (PARs) belong to a family of heterotrimeric G protein-coupled receptors that are implicated in leukocyte accumulation and potentiation of reperfusion injury. We characterized the effect and the signal transduction pathways recruited after stimulation of endothelial PAR2. We used von Willebrand Factor (vWF) release and monolayer permeability to per...

Applying Zeilberger’s algorithm of creative telescoping to a family of certain very-well-poised hypergeometric series involving linear forms in Catalan’s constant with rational coefficients, we obtain a second-order difference equation for these forms and their coefficients. As a consequence we obtain a new way of fast calculation of Catalan’s constant as well as a new continued-fraction expans...

The region of n-dimensional Euclidean space comprising the points xi = p44)), i = 1, 2, ..., n, for all distributions 0 is the reduced moment space Bn. The region comprising the points of the form xi = ,ui(It) = t' is a twisted curve, denoted by Q.n. an is closed and convex, and for n > 2 its set of extreme points is precisely @17n. THEOREM. If x is in the boundary of Bn then there is a unique ...

The damage and signaling to cells and tissues with subsequent stimulatory responses induced by low doses of ionizing radiation were reviewed in Part 1 (J Nucl Med. 2001;42[7]:17N–27N). In the intact organism, these responses are expressions of complex adaptive systems that maintain homeostatic control essential for survival. The antimutagenic DNA damage-control system is the central component o...

Received 18danuary 1978 Revised 28 August 19(8 ., For a permutation (J"of the integers from 1 to n, let f((J")be the smallest number of prefix reversalsthal'will transform (J"to the identity permutation, and let f(n) be the largest such f(lr) for all (J"in (the symmetric group) Sn' We show that f(n) "'"(5n + 5)/3, and that f(n) ~ 17n/16 for n a multiple of 16. if, furthermore, each integer is r...