Born this Way–or Not? The Relationship Between Essentialism and Sexual Minorities’ LGBTQ+ Identification and Belonging

Archives of Sexual Behavior - Bisexual people experience lower levels of belonging in the LGBTQ+ community than gay and lesbian people. We investigated one of the factors that may reduce bisexual...     

慢性肺源性心脏病人血液触变特性

本文用Low Shear 30流变测定仪,测定了55例肺心病患者全血触变特性的变化,分析了这些变化与肺心病发生和发展的关系。结果表明:肺心病患者血液的触变特性发生了异常改变。HCT、τ_o、η_s、μ、(η_s-μ)、A、ARC均升高,并随病情加重而逐渐明显。其原因主要在于肺心病缺氧所致的继发性红细胞增多及血液氧分压降低,和二氧化碳分压升高所致的红细胞变形性降低。血液触交特性的改变又使血液循环外周阻力增大,右心负荷增加,从而进一步加重了病情的发展。     

Enhancement of the anaphylactoid reaction in rats by phenylalanine enamine

Low doses of phenylalanine enamine, administered at the same time as dextran, significantly enhanced the onset, height and duration of the anaphylactoid reaction in rats. The enhancement occurred after intraperitoneal or local administration. The enamine did not modify the histamine or 5-hydroxytryptamine responses in rat paws, so its effect on dextran may be due to modification of the release mechanism of the two amines from tissue mast cells.     

Viral hepatitis

Viral hepatitis is the most common serious contagious disease caused by viruses that attack the liver. Approximately 70,000 cases are reported to the Centers for Disease Control each year, representing only a fraction of U.S. cases. There are five types of viral hepatitis currently known: Hepatitis A--formerly called infectious hepatitis; Hepatitis B--formerly called serum hepatitis, and the most serious form; Hepatitis C--formerly called non-A, non-B hepatitis; Hepatitis D--formerly called delta hepatitis; Hepatitis E--formerly called enteric or epidemic non-A, non-B hepatitis. The following Open Forum, prepared by leading EMS experts, explores the differences among the types of hepatitis, signs and symptoms, and EMS implications.     

抑制血管生成对颊粘膜鳞癌微血管构筑的影响

目的 了解抑制血管生成对颊癌微血系统空间配布的影响,进而了解对肿瘤局部生长、浸润及转移的作用。方法 应用鱼精蛋白进行实验治疗,结合扫描电镜肿瘤生血管系统的变化规律。结果 鱼精蛋白确有抑制智力;这生成的作用,主要表现为延缓肿瘤血管生成的发和因管空间结构的建立,促进血管成熟,因此而抑制肿瘤生长、浸润和转移。结论 通过抑制血和生成有可效地阻止肿瘤生长和转移所依赖的血和系统建立和发展,从而限制肿瘤细胞局部