不同位置男篮运动员血乳酸与心率的测定

通过对体育学院篮球专项学生比赛时血乳酸和心率的测定,发现运动员血乳酸值的增加具有显著的统计学意义,且不同位置的运动员血乳酸值并不相同,其比赛时能量供应的特征也不一样。     

Breast cancer in developing population: A nutrition caveat

From January 1992-January 1998, 1404 patients attended the “Breast Clinic” of R.N.T. Medical College M.B. Hospital, Udaipur. Out of these, 11% and 81% patients had breast cancer (B.C.) and benign breast cancer (B.B.D.) respectively. The oxidative load in B.C. was 2.32 times higher than controls, but comparable to B.B.D. β-Carotene deficiency was uncommon in patients, whereas vitamin A deficiency was almost equally common in both B.C. and controls. Most of the patients had almost depleted levels of α-tocopherol and ascorbic acid but their TBAR levels were in normal range. The data in the present study when compared with B.B.D. and other local normal subjects point out: a) oxidative burden in B.C. is a consequence and not the cause of the disease, (b) oxidative stress could be one of the etiological factors in tumor expression, which need not to be malignant and c) α-tocopherol and ascorbic acid are not importantly responsible for higher oxidative burden in B.C.     

三元混配化合物的极谱研究--Phosphonic-、Amino-acid-Eu体系稳定性

以脉冲极谱法研究了用有机磷酸和氨基酸作为配体与Eu(Ⅲ)形成两元及三元体系配合物的极谱行为.模拟生理条件,在μ=O.1(NaCl)、T=310±0.2K条件下,电极过程为准可逆;测定了配合物的稳定常数;讨论了复杂体系各配合物稳定性差异及其影响因素.     

4'──乙酰基缩氨脲基苯并15冠5的合成

报道了在多聚磷酸（PPA）中将醚酰化的方法,合成了4'─乙酰基苯并15冠5,以此为原料,在酸性条仟下与氨基脲作用,合成了4'乙酰基缩氨脲基苯并15冠5．经由IR、MS和元素分析仪对合成的两种新物质的结构进行了鉴定．     

Effect of iron deficiency on developing rat brain

Iron deficiency evolves, slowly through several stages. Early iron deficiency caused a depletion in iron stores as shown by a reduction in the levels of hepatic non heme iron (44%) in the 7 days old pups born to iron deficient mothers. The hemoglobin levels and PCV (packed cell volume) were significantly reduced only after the age of three weeks. The activities of GABA (γ-amino butyric acid) shunt enzymes viz. GDH, GAD and GABA-T (glutamate dehydrogenase, glutamate decarboxylase and GABA-transaminase, respectively) and GABA content were found to decrease during gestation and/or lactation iron deficiency at 1 week (wk), 2wk, 3wk and 4wk of age in the developing rat brains. However GABA binding showed a significant increase at different age groups. The iron deficiency during lactational exposure showed significant alteration in most of the parameters only at the age of 3 weeks onwards. On rehabilitation with iron supplemented diet for 2 weeks, these altered parameters could not attain corresponding control values. A prolonged iron deficiency causing alterations in GABA may lead to neurological and behavioral alterations.     

对高水平散手运动员赛前训练部分生化指标的监测分析

通过文献资料法、实验法、数理统计法和系统方法,对湖北省参加2004年全国散打锦标赛的高水平运动员在赛前训练的部分生化指标进行了监测。结论表明:通过对赛前血色素、血尿素、血清肌酸激酶变化的观察,其能反映高水平运动员对赛前运动负荷的适应情况以及身体机能的状况。安静时血乳酸值对周训练后运动员机能水平变化的反映不灵敏,运动后血乳酸值可反映赛前训练对抗强度及运动员的无氧能力。     

稀土配合物Sm（hq）2Ac的标准摩尔生成焓的测定

用具有恒温环境的溶解-反应量热计,测定了在T = 298.15K时[SmCl3 6H2O (s) + 2Hhq (s)+NaAc(s)]和[Sm(hq)2Ac(s)+NaCl(s)+2HCl(g)+6H2O(l)]反应的标准摩尔反应焓为(213.6±1.5)kJ mol-l,根据上述标准摩尔反应焓和其它的热力学数据可求得在T = 298.15 K时Sm(hq)2Ac-l的标准生成焓是 (1217.7±3.4)kJ mol.     

肺炎衣原体与急性心梗、心绞痛型冠心病的关系

目的：探讨肺炎衣原体（TWAR）与急性心梗（AMI）、心绞痛（Angina）型冠心病之间的关系。方法：采用多聚合酶链反应（PCR）技术对200例冠心病（急性心梗56例,不稳定心绞痛124例,稳定心绞痛20例）和180例非冠心病患者进行全血标本肺炎衣原体DNA检测。结果：急性心梗组肺炎衣原体DNA阳性率为73.2%,不稳定心绞痛组为52.4%,稳定心绞痛组为45.0%;对照组为21.1%,三组与对照组相比,差异均有显著性（P〈0.01,P〈0.01,P〈0.05）。结论：肺炎衣原体感染与急性心梗、心绞痛型冠心病存在密切关系。     

紫外分光光度法测定莽草酸的解离常数

根据光度法测定酸解离常数的原理,采用紫外分光光度法测定了莽草酸的解离常数。在选定波长(215、220、224、226、230 nm)处测定不同pH值的莽草酸溶液吸光度值,得到莽草酸的离解常数为3.87±0.08。方法简便,结果可靠。     

Ge-DDMBA-PF在氯乙酸介质中光度法测定锗

本文介绍在氯乙酸存在下,Ge—DDMBA—PF形成红色配合物测定锗的方法。配合物的组成为Ge:PF=1:2,最大吸收λ=530nm,摩尔吸光系数ε=1.45×10~51·mol~(-1)·cm~(-1);锗含量在0～5ug/25ml符合比尔定律。方法操作简单,显色快且稳定,用于铅锌矿渣中锗的测定,结果满意。