Abstract Background Proton beam therapy is promising for the treatment of head and neck cancer (HNC), but it is sensitive to uncertainties in patient positioning and particle range.Studies have shown that the planning target volume (PTV) concept may not be sufficient to ensure robustness of the target coverage.A few planning studies have considered
In the model cyanobacterium Anabaena sp.PCC 7120, cells called heterocysts vegetable glycerin for sale that are specialized in the fixation of atmospheric nitrogen differentiate from vegetative cells of the filament in the absence of combined nitrogen.Heterocysts follow a specific distribution pattern along the filament, and a number of regulators
The paper presents a particular form of soil instability, which is rarely observed in Slovenia.This is a lateral spread of the soil, which appeared some years ago in the central part of Dolina area in the municipality of Puconci.The area is mainly build up from clay and sandy sediments of the Pannonian Sea, predominantly Pliocene age.A significant
Abstract Background Selfish genetic elements that distort the sex ratio are found widely.Notwithstanding the number of records of sex ratio distorters, their incidence is poorly understood.Two factors can prevent a sex ratio distorter from invading: inability of the sex ratio distorter to function (failure of mechanism or transmission), and lack of
Background: Tuberculosis is a major cause of mortality among HIV-infected inpatients, and the World Health Organization (WHO) recommends an algorithm to improve diagnosis.The urine lateral flow lipoarabinomannan (LAM) and sputum Xpert MTB/RIF tests are promising tools, but the optimal diagnostic algorithm is unclear.Methods: This prospective cohort