The issue of truck accidents on urban freeways is a vital concern for both traffic managers and the general public. The passage of the Surface Transportation Assistance Act of 1982 and recently the North American Free Trade Agreement has increased the numbers of large combination vehicles on the highway system. The rise in truck volume (defined as vehicles exceeding 4.5 Mg (10,000 lbs), the int...

The discovery of the first naturally occurring high gain hydrogen recombination line (HRL) maser, in the millimeter and submillimeter spectrum of the emission line star MWC349, requires an expansion of current paradigms about HRLs. In this paper we re-examine in general the physics of non-LTE populations in recombining hydrogen and specify the conditions necessary for high-gain masing and lasin...

Following the WHO declaration for COVID-19 as a pandemic, this disease has caused an international crisis with severe impact on economic and health care systems. After first cases reported in China, progressively widespread worldwide where all affected countries adapted specific safety protocols tried to find new therapies order face disease. The final objective is evaluate overall of stringenc...

We examine five different popular rigid water models (SPC, SPCE, TIP3P, TIP4P, and TIP5P) using molecular dynamics simulations in order to investigate the hydrophobic hydration and interaction of apolar Lennard-Jones solutes as a function of temperature in the range between 275 and 375 K along the 0.1 MPa isobar. For all investigated models and state points we calculate the excess chemical pote...

Robert Hummer and Erin Hamilton note that the prevalence of fragile families varies substantially by race and ethnicity. African Americans and Hispanics have the highest prevalence; Asian Americans, the lowest; and whites fall somewhere in the middle. The share of unmarried births is lower among most foreign-born mothers than among their U.S.-born ethnic counterparts. Immigrant-native differenc...

 Received transportation to and from the campus in excess of my actual round-trip transportation costs on a direct route between my home (or site of my athletics competition or educational institution) and the institution’s campus for an official visit;  Any knowledge that my friends or relative received reimbursement or cost-free transportation or travel expenses for the visit;  Received tr...

This study focused on alcohol consumption and college adjustment of 227 students classified as either first-generational college students (FGCS) or non-first generational college students (NFGCS). Chi-square analyses were used to examine differences in frequency of alcohol consumption and binge drinking. A MANCOVA was used to assess differences in social and academic adjustment by generational ...

TOPIC: Chest Infections TYPE: Medical Student/Resident Case Reports INTRODUCTION: Quadricuspid aortic valve (QAV) is a very rare congenital cardiac anomaly with an incidence of 0.05-1%. Inevitably, patients QAV are at increased risk infective endocarditis. The main structural sequela predominantly regurgitant (aortic insufficiency). Approximately 1 in 5 cases require surgical intervention and t...

The australopithecines and Homo habilis have been publicized for years as examples of evolutionary transitional forms that launched our own human lineage. Dogmatic evolutionists have rationalized these claims on the basis of brain expansion, encephalization quotients, and bipedalism. However, any evolutionary justification for brain expansion in these extinct creatures must rest in a precise mo...