Global warming, also known as climate change, is a phenomenon that has been impacting the planet for several decades now. It is the gradual increase in the Earth's surface temperature caused by human activities such as burning fossil fuels, deforestation, and other industrial activities. The consequences of global warming are already being felt worldwide, and its effects are expected to worsen in the coming years.
Exposures to environmental pollutants have been associated with respiratory diseases in humans and Continuous exposure to non-combusted liquefied petroleum gas (LPG) is suspected as a leading hazardous factor that might result in the development of impaired pulmonary functions. The study is aimed at assessing the effects of chronic exposure to non-combusted LPG on the prevalence of respiratory symptoms and appraising the potential pulmonary impairments among LPG vendors. Seventy five (75) apparently healthy LPG vendors and Seventy five (75) apparently healthy non LPG vendors, aged 18 to 50 years were recruited into this study. The Forced expiratory volume in 1second (FEV1), forced vital capacity (FVC) and peak expiratory flow (PEF) were obtained using a Spirometer while FEV1/FVC was calculated. Independent t-test was applied to determine the mean difference between the exposed and control groups at 5% level of significance. Chi-square test/Fisher’s exact test was used to investigate all forms of associations in the study. The prevalence of respiratory symptoms in LPG vendors was highest in nasal irritation/sneezing (56%), followed by cough (53.3%), wheeze (40%) and chest tightness (26.7%), respectively. Only the symptoms of nasal irritation/sneezing and cough showed significant association with the LPG vendors (P<0.05). Association between respiratory symptoms and age, association between respiratory symptoms and duration of exposure were not significant (P >0.05). There was a recorded significant decrease in FEV1, FVC, PEF except FEV1/FVC for the LPG vendors (P <0.05) compared to the non LPG vendors. The health implications of exposure to LPG are high prevalence rate of respiratory symptoms (nasal irritation/sneezing and cough) and impaired pulmonary functions. Journal Name: Journal of Biodiversity and Environmental Sciences | JBES
Nat Biotechnol. 2013 Sep;31(9):814-21. doi: 10.1038/nbt.2676. Epub 2013 Aug 25. Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.
Zeigt die Chancen der Clouds im Bereich der Applikationen auf.Um das volle Potential von Cloud Applikationen nutzen zu können, braucht es eine ganzheitliche Betrachtungsweise. Gerade KMU neigen dazu, die Vor- und Nachteile von Cloud Applikationen an ihren bestehenden Prozessen zu messen. Die Chance dabei auch bestehende Prozesse zu optimieren, wird oft vernachlässigt. Moderne Cloud Applikationen verfügen ausserdem oftmals über eine intuitivere und schlankere Bedienung.
POTLIB is an online library of global and semiglobal potential energy surface subprograms for calculating Born-Oppenheimer energies as a function of nuclear geometry. The library currently features more than 250 potential energy routines for a wide range of chemical systems. Our goal is to facilitate chemical dynamics research by collecting and disseminating a comprehensive collection of state-of-the-art potential energy routines (developed by a wide, international group of researchers) with systematic and well-defined interfaces for use with chemical dynamics programs.
We select, curate, and index 1000s of scientific studies from MEDLINE, CAB Abstracts, and Agricola so you can review the evidence of animals as "early warning" sentinels of human health hazards.
Haibun is open to a huge range of expression: from the surreal and dreamlike to straight discursive narrative -- even journalism: from impressionistic writing to exposition and storytelling, meditation and the personal diary -- an exploration of the wilde