NOCTURNAL HEART RATE AND CARDIAC REPOLARIZATION IN LOWLANDERS WITH CHRONIC OBSTRUCTIVE PULMONARY DISEASE AT HIGH ALTITUDE: DATA FROM A RANDOMIZED, PLACEBO-CONTROLLED TRIAL OF NOCTURNAL OXYGEN THERAPY

Background: Chronic obstructive pulmonary disease (COPD) is associated with cardiovascular disease.We investigated whether sleeping at altitude increases nocturnal heart rate (HR) and other markers of cardiovascular risk or arrhythmias in lowlanders with COPD and whether this can be prevented by nocturnal oxygen therapy (NOT).Methods: Twenty-four C

High nitrogen (N) uptake is one of the main reasons for invasive alien plant invasions.However, little effort has been made to compare the effects of different N forms on N uptake between invasive and native plants, especially those on N form acquisition strategies (preference and plasticity), which influence N uptake, and thus exotic plant invasio

This paper examines the role of rainfall in the urban development of Kenya.The rainfall characteristics have been analysed and their influence on agricultural and urban development assessed.It is noted that since Eldoret is one of the rapidly expanding Ski Jackets towns in Kenya located in highly potential agricultural region, variability of rainfa

Ovarian follicular granulosa cells surround and nurture oocytes, and produce sex steroid hormones.It is believed that during development the ovarian surface epithelial cells penetrate into the ovary and develop into granulosa cells when associating with oogonia to form follicles.Using bovine fetal ovaries (n = 80) we identified a novel cell type, t

Introduction.The topic of implementing a dual-band mode of operation for director dipole antennas is represented by a wide range of works, almost all of which are dedicated to studying the properties of a classic dipole.However, the issue of end Body Sponges excitation of radiators for dual-band director antennas remains open.The development of suc