The high-tech sector is concentrated in a small number of cities. ten largest clusters computer science, semiconductors, and biology account for 69 percent, 77 59 percent all US inventors, respectively. Using longitudinal data on 109,846 I find that geographical agglomeration results significant productivity gains. When an inventor moves to city with large cluster inventors the same field, she ...

Both genomics and environmental stressors play a significant role in increases in blood pressure (BP). In an attempt to further explain the hypertension (HTN) disparity among African Americans (AA), both genetic underpinnings (selected candidate genes) and stress due to perceived racial discrimination (as reported in the literature) have independently been linked to increased BP among AAs. Alth...

BACKGROUND AND PURPOSE Saccular intracranial aneurysm is a common disease that may cause devastating intracranial hemorrhage. Hemodynamics, wall remodeling, and wall inflammation have been associated with saccular intracranial aneurysm rupture. We investigated how saccular intracranial aneurysm hemodynamics is associated with wall remodeling and inflammation of the saccular intracranial aneurys...

OBJECTIVE Elevated plasma adrenomedullin (ADM) levels are associated with cardiovascular diseases. Single nucleotide polymorphisms (SNPs) in the gene encoding ADM (ADM) are associated with plasma ADM levels. The presence of a nuclear factor for interleukin-6 (IL-6) expression binding site in the promoter region of the ADM gene suggests a possible relationship between the expression of the ADM a...

Abstract We present the results of a detailed investigation poorly studied X-ray pulsar (XRP) XTE J1858+034 based on data obtained with NuSTAR observatory during outburst source in 2019. The spectral analysis resulted discovery cyclotron absorption feature spectrum at ∼48 keV both pulse phase-averaged and resolved spectra. Accurate localization using Chandra observatories allowed us to accurate...

Short-term consumption of flavanol-rich cocoa has been demonstrated to improve various facets of vascular health. The purpose of the present study was to determine the effect of 4 weeks of natural cocoa consumption on selected cardiovascular disease (CVD) biomarkers in young (19-35 years) women of differing body mass indices (BMI; normal, overweight or obese). Subjects (n = 24) consumed a natur...

OBJECTIVE The brachiobasilic arteriovenous fistula (BBAVF) can be formed in one or two stages. This study examined the failure rates and functional patencies of one-stage vs two-stage brachiobasilic transposition fistulas to compare the two surgical techniques. METHODS We retrospectively identified all the patients who underwent BBAVF access surgery at King's College Hospital between January ...