We report the discovery of PSR J1747−2958, a radio pulsar with period P = 98 ms and dispersion measure DM = 101 cm−3 pc, in a deep observation with the Parkes telescope of the axially-symmetric “Mouse” radio nebula (G359.23−0.82). Timing measurements of the newly discovered pulsar reveal a characteristic age P/2Ṗ = 25 kyr and spin-down luminosity Ė = 2.5×1036 erg s−1. The pulsar (timing) positi...

Shock tubes have been widely used since the 1950s to study physical phenomena such as shock waves, combustion chemistry, and the response of materiel to blast loading. Recently, laboratory-scale shock tubes driven by oxy-acetylene were described. It was estimated that these shock tubes would not have a significant “jet effect” of expanding gases following the shock front because the combustion ...

Dr. Borjas is the Robert W. Scrivner Professor of Economics and Social Policy at the John F. Kennedy School of Government, Harvard University. This Backgrounder is an expansion of Dr. Borjas’ article, “The Labor Demand Curve Is Downward Sloping: Reexamining the Impact of Immigration on the Labor Market,” published in the November 2003 issue of the Quarterly Journal of Economics (pp. 1335-1374)....

The relationship between weight change and risk of hip fracture is still controversial. We searched PubMed and Embase for studies on weight change and risk of hip fracture. Eight prospective studies were included. The weight loss studies included 85592 participants with 1374 hip fractures, and the weight gain studies included 80768 participants with 732 hip fractures. Weight loss is more likely...

It has been suggested that platelet-activating factor (PAF) plays a prominent role in the control of glomerular hemodynamics in various physiological and pathological conditions. We examined the direct effect of PAF on rabbit glomerular afferent arterioles (Af-Arts) microperfused in vitro and tested whether endothelium-derived relaxing factor/nitric oxide (EDNO) and cyclooxygenase products are ...

Data for ongoing and completed clinical trials (Phases I-III) were extracted from the European Union Clinical Trials Register five EU-EECs (Bulgaria, Hungary, Poland, Romania Slovakia) (from January 1, 2012 to September 30, 2022). Based on almost 11-year period Poland (n = 4134) Hungary 3845) represent largest share of trials, with over 250–300 a year. Bulgaria (with population 7 mill. inhabita...

A violência, independentemente de sua natureza, é um dos principais obstáculos para a garantia direitos humanos e da liberdade individual mulheres, afeta-a em todas as fases vida. O objetivo do estudo foi identificar os casos violência contra mulher no estado Acre período compreendido entre 2017 2021. Trata-se transversal, retrospectivo abordagem quantitativa, cuja coleta dados realizada Depart...