Female-headed families comprise a larger proportion of the poor than they did the preceding year; the observer concludes that female-headed families are worse off. Blacks consistently make up the overwhelming majority of freshmen disqualified from participation in intercollegiate athletics by Proposition 48, the academic requirement introduced by the National Collegiate Athletic Association to ...

IT is the purpose of this paper to compare the results of the lability test of Bloomfield and Lambert (1945) with those of its two components, the venous-congestion test of Schoenberg (1929) (referred to as the "cuff test") and the coldpressure test of Kahler and Sallmann (1929) (referred to as the "ice test"), on a number of normal and glaucomatous eyes, in conditions which correspond as close...

GH stimulation tests are widely used in the diagnosis of GH deficiency (GHD), although they are associated with a high false positive rate. Serum IGF-I levels are monitored during GH replacement treatment in subjects with GH deficiency (GHD) to guide GH dose adjustment and to minimize occurrence of GHrelated side-effects. The need for reliance on provocative testing is based on evidence that th...

Horizontal canal (HC) benign paroxysmal positional vertigo (HC-BPPV) is a vestibular disorder characterized by bouts of horizontal ocular nystagmus induced during reorientation of the head relative to gravity. The present report addresses the application of a morphologically descriptive 3-canal biomechanical model of the human membranous labyrinth to study gravity-dependent semicircular canal r...

In 2011, The National Cancer Institute (NCI) has announced 24 provocative questions on cancer. Some of these questions have been already answered in "NCI's provocative questions on cancer: some answers to ignite discussion" (published in Oncotarget, 2011, 2: 1352.) The questions included "Why do many cancer cells die when suddenly deprived of a protein encoded by an oncogene?" "Can we extend pa...

In studies of asthma prevalence bronchial responsiveness has usually been measured as the provocative dose of bronchoconstrictor causing a 20% fall in FEV1 (PD20FEV1). This is relatively insensitive and only 10-20% of subjects in a general population sample will show such a response. Attempts to increase sensitivity, such as the use of the provocative dose causing a 10% fall in FEV1 (PD10FEV1),...

BACKGROUND Physical examination is a traditional outcome measure in epidemiological research. Its value as a reliable measure depends, in part, on the prevalence of positive findings. The purpose of this paper is to determine the empirical reliability of physical examination and anthropometry in a field study of upper extremity disorders among keyboard operators. METHODS Two experienced exami...

In a time of scientific and technological developments and budgetary constraints, the National Cancer Institute's (NCI) Provocative Questions Project offers a novel funding mechanism for cancer epidemiologists. We reviewed the purposes underlying the Provocative Questions Project, present information on the contributions of epidemiologic research to the current Provocative Questions portfolio, ...

become useful as a provocative and predictive test for early renal abnormalities. In summary, our data indicate that exercise microalbuminuria is not detected in most kidney donors and support the notion that the uninephrectomized state does not result in a progressive hyperfiltration nephropathy. In addition, longitudinal studies could reveal whether. a particular subset of donors with abnorma...