We prove a generalization of both Pascal’s Theorem and its converse, the Braikenridge–Maclaurin Theorem: If two sets of k lines meet in k2 distinct points, and if dk of those points lie on an irreducible curve C of degree d , then the remaining k(k − d) points lie on a unique curve S of degree k − d. If S is a curve of degree k − d produced in this manner using a curve C of degree d , we say th...

background and objectives: there is convincing evidence that subjects concomitantly affected by type 2 diabetes (t2d) and metabolic syndrome (mes) are at greater risk for cardiovascular disease (cvd). many metabolic derangements in t2d might be attributed to poor vitamin d status. the purpose of this study was to investigate the associations among vitamin d status, mes and glycemic status in su...

It is well known that a-adrenoceptors have been classified into the a1-type in postsynaptic sites and the a2-type in presynaptic sites (1). Prazosin and yohimbine are selective an tagonists of a1 and a2-adrenoceptors, re spectively (2). Norepinephrine (NE) exerts a non-selective agonistic action at each type of a-adrenoceptors (3, 4). Recent reports present evidence that postsynaptic a2 as well...

Using the published photometry and an empirical model of the temporal evolution of the apparent magnitudes in the UBVRI passbands, we have constructed a continuous optical bolometric, or “quasi-bolometric”, light curve of the well-observed Type Ia supernova SN 1994D. The optical bolometric light curve is found to have a maximum luminosity of about 8.8 × 1042 × ( D 13.7Mpc) 2 erg/s, which is rea...

in this research, 272977 test day records collected from 659 herds during years 2001 to 2011 by the iranian animal breeding center were used. in the first section the ability of different models to predict daily milk yield from alternative milk recording was tested. the result showed that a complex model including noon milking time plus the effect of lactation curve of ali and schaeffer functio...

background: angiotensin i converting enzyme (ace) is a zinc metalloproteinase, converts ang-i to ang- ii, a pro-inflammatory agent which may contribute to pathophysiology of some diseases like type 2 diabetes. objective: to investigate the relationship between ace i/d polymorphism and type 2 diabetes in 261 iranian casecontrol pairs. methods: 170 patients (85 type 2 diabetics with nephropathy a...

The 16-item Vitamin D Status Predictor (VDSP) tool identifies healthy older community-dwellers at risk of hypovitaminosis D and may guide the use of blood tests in this population. The objective of the present hospital-based study was to test the efficacy of the VDSP to identify geriatric patients with hypovitaminosis D. The study included 199 nonsupplemented geriatric in- and outpatients conse...

background there are many risky behaviors that threat adolescents and must receive specific attention. research has shown that personality pattern behaviors have a significant relationship with risky behaviors. objectives the objective of this study was to clarify the role of personality pattern behaviors in risky behaviors of high school students in chabahar city. patients and methods three hu...