It has been almost 4 years since the revised F-tag 501 medical director was released by the Centers for Medicare and Medicaid Services (CMS). There was much consternation at that time regarding the impact it would have on the future of long-term care and medical director–facility relationship. Much has been written on what the medical director should be doing given the new regulations. The ques...

These notes are based on the two lectures1 I gave in Stat 501, Probability Theory I, as a substitute for Professor Cheng Ouyang. There is a brief discussion of the so-called “basic grouping lemma” concerning independent σ-algebras, followed by a more detailed discussion of the Borel–Cantelli lemma, some applications, and some elaborations on independence. Independence, and the basic grouping le...

Reusing experience in the form of processes, products, and other forms of knowledge is essential for improvement, in other words: reuse of knowledge is the basis for improvement [4]. Approaches to systematically support reuse are the Quality Improvement Paradigm and the Experience Factory. This paper describes experiences with the application of these approaches to the project CoDEx, which was ...

VERITAS, the Very Energetic Radiation Telescope Imaging Array System, is an array of four imaging Atmospheric Cherenkov telescopes in southern Arizona. It is sensitive to gamma rays at energies above 100GeV. Here, we discuss the results of observations of two well known VHE blazars, Markarian 421 and Markarian 501, during Spring 2006 which were made with the first two telescopes during the comi...

The major envelope glycoprotein genes (ORF5) of seven Czech isolates of porcine reproductive and respiratory syndrome virus (PRRSV) were amplified and their nucleotide sequences were determined. ORF5 displayed nucleotide and amino acid identities of 87.5-100% and 87. 6-100%, respectively, among the isolates. In a phylogenetic tree, all European isolates were grouped in a genotype distinct from ...

Sirtuins represent a novel family of enzymes that are collectively well situated to help regulate nutrient sensing and utilization, metabolic rate and ultimately metabolic disease. Activation of one of these enzymes, SIRT1, leads to enhanced activity of multiple proteins, including peroxisome-proliferator activated receptor coactivator-1alpha (PGC-1alpha), which helps to mediate some of the in ...

The possible association between the risk of death from sudden infant death syndrome (SIDS) and the levels of magnesium in drinking water from municipal supplies was investigated in a matched case-control study in Taiwan. Characteristics for all SIDS deaths (501 cases) among Taiwan residents from 1988 through 1997 were compared with those of people who died from other causes (501 controls). The...

Harwit, Protheroe, and Biermann (1999) recently proposed that BoseEinstein photon bunching might significantly affect the interpretation of Cerenkov counts of TeV gamma photons. Here, we show that a combination of two recent results of Aharonian et al. (2000) and Aharonian et al. (2001) permits us to set new, more stringent upper limits of ∼< 10% on the fractional amount of photon bunching in t...

Blazars, a class of Active Galactic Nuclei (AGN) characterized by a close orientation of their relativistic outflows (jets) towards the line of sight, are a well established extragalactic TeV γ-ray emitters. Since 2006, three nearby and TeV bright blazars, Markarian (Mrk) 421, Mrk 501 and 1ES 1959+650, are regularly observed by the MAGIC telescope with single exposures of 30 to 60 minutes. The ...

Rocha e Silva and Rosenthal (1) have reported that the exudates from burnt rat skin contain histamine, bradykinin, adenosine derivatives and possibly serotonin and other as yet unidentified pharmacologically active and toxic substances. Hodson (2) has reported the peripheral antiserotonin activity of B.W. 501 C 67 (&alpha;-anilino-N-2-m-chlorophenoxypropyl acetamidine hydrochloride monohydrate)...