冷季性草坪--高羊茅病害及其防治

高羊茅又叫苇状羊茅,是一种优质草坪草,适应于各种土壤类型,有很强的抗高温、干旱能力,耐磨性好,在暖温带和亚热带地区的家庭、路边、公园普遍种植.近几年来,我国各地高羊茅病害屡见发生,严重发生时会造成草坪质量下降,使草坪失去漂亮的外观,甚至毁灭整个草坪.防治高羊茅病害,对保证草坪的质量有着重要意义.     

福建烟草气候斑点病病斑症状的分型认定研究

关于烟草气候斑点病病斑症状分型与否，国外报道不一，国内尚无专题。多年来，国内多持一种症状的描述。９３年高乔婉首先提出广东有三种异型高斑症状，这是我国唯一的症状明确分型报道。笔者认为对这一非侵染性病斑病状分型与否的讨论很重要，并在回顾国内外症状认识史实和分析我国大气污染型后，依据田间普查、图文对照，致病模拟，赞同症状分型的学术观点，致病模拟，赞同症状分型的学术观点，认定福建烟草该病病斑有白点型、褐斑     

科学面对"非典"

一、传染性非典型肺炎的特点和传播途径 传染性非典型肺炎,原来叫非典型肺炎,简称"非典",是指最近发生的,目前病原还没最后确定的一种传染性肺炎.世界卫生组织建议称其为"严重急性呼吸道综合征"(Severe Acute RespiratorySyndromes),简称SARS.典型性肺炎通常是指由肺炎链球菌等常见细菌引起的肺炎.症状比较典型,如发烧、胸痛、咳嗽、咳脓痰等,血常规化验白细胞通常会增高.非典型肺炎,是指由病毒、支原体、衣原体、立克次体和军团菌等引起的肺炎.其临床表现多为干咳,相对典型性肺炎来说症状不典型.     

Antiphospholipid syndrome：a survey of clinical characters in ten cases

Objective: To gain further understanding of the antiphospholipid syndrome(APS) . Methods : Analysing clinical and laboratory data on ten cases of APS. Results: Thrombocytopenia appeared in all cases.Venous thrombi of limbs appeared in five eases and neurological abnormalities in two cases. Renal impairments were found in three cases. One case manifested left renal venous thrombi and the other two cases thrombotic microangiopathy. Budd-Chiari syndrome was found in one case. One of the ten cases was catastrophic APS(CAPS) presented as acute diffuse swelling, cyanosis, pain, ischemia and necrosis in fingers and limbs,recurrem shock, ascites, hepatic and respiratory dysfunction. Anticoagulams and corticosteroids could be effective for dealing with APS. It was critical to treat catastrophic APS with anticoagulants or plasmapheresis as early as possible. Conclusions: APS shows variable manifestations for good prognosis, but catastrophic APS has fatal risk. The main treatment for APS is the use of anticoagulams and immunosuppressives.