简介:摘要:地铁和轨道交通等人口密集的场所采用常规的阻燃电缆已经不能满足安全要求,需要采用B1级高阻燃电缆.以达到更好的阻燃防火效果。本文着重介绍无卤低烟阻燃B 1 级电缆的高效加工方法,解决产品量产的问题。
简介:生性乐观的小华,平时身体壮得像头牛。白天还和同伴们一起在绿菌场上奔跑,夜晚突然一睡不起,致使亲朋好友都惊愕不已,难以相信。后经医院的大夫尸检发现,小华猝死的原因主要是体内维生素B1缺乏所引起的。难道维生素B1缺乏也会引起猝死吗?要回答这个问题,有必要还是先了解一下维生素B1对人体健康的生理作用。现代医学认为,维生素B1具有维持循环、消化、神经和肌肉的正常生理功能,同时可抑制胆碱酯酶的活性,调整胃肠道的功能,参与糖的代谢,与人体的健康密切相关。倘若人体内缺乏维生素B1,就容易使机体内的丙酮酸氧化脱羧发生障碍,致使糖的氧化受阻,从而导致低血糖。医学
简介:AbstractBackground:Intracerebral hemorrhage (ICH) is fatal and detrimental to quality of life. Clinically, options for monitoring are often limited, potentially missing subtle neurological changes. Integrin β 1 (ITGB1) and β 3 (ITGB3) are the main components of integrin family receptors, which regulate the formation and stability of blood vessels. This study explored the relationship between the expression of ITGB1 and ITGB3 in intracerebral hemorrhage (ICH) to analyze their functional and clinical relevance.Methods:The expression of ITGB1 and ITGB3 in ICH was accomplished by immunohistochemical (IHC) staining and western blotting (WB) analysis, respectively.Results:Furthermore, the results demonstrated that ITGB1 was expressed in ICH tissues, but ITGB3 was not expressed in ICH tissues.Conclusions:In summary, the clinical progression of ICH was related to the expression of ITGB1. ITGB1 may be a potential biomarker and contribute to the treatment of ICH.
简介:WeinvestigateindetailtheeffectsofR-parityleptonnumberviolationonthedecay~↑b1→b~↑x1^0intheR-parityviolatingminimalsupersymmetricstandardmodel(Rp-MSSM)underthepresentexperimentalconstraintsonRpparameters.Inournumericalcalculationsweconsidertwocasesofinputparametersofthesquarkandsleptonsectors,MsquarkMslepton,forcomparison.TheresultsshowthattherelativeR-parityviolatingcorrectionisnotverysensitivetothemassofthelightestneutralino-0↑x1andthedegenerateR-parityviolatingcouplingparameterλ2′,butstronglydependsonMsquark,Mslepton,tanβandthedegenerateR-parityviolatingcouplingparameterλ1′.Therelativecorrectionisabout-4~3%andcanexceed-6%insomeregionofparameterspace.Therefore,preciseexperimentanalysesonthedecay~↑b1→b~↑x1^0mayprovideaprobeoftheR-parityviolation.