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991.
992.
目的:用滤膜荧光法检测大肠菌群,并将该法与标准滤膜法进行比较。方法:将菌种于肉汤培养基中培养至对数生长期,稀释,用微孔滤膜过滤,将滤膜置于含MUGAL的培养液的衬垫上,置37℃培养,在不同时间取出观察,并作荧光斑点扫描。结果:经实验室模拟水样和列车餐车水样检验,滤膜荧光法和标准滤膜法结果无差别。结论:滤膜荧光法与标准滤膜法相比具有快速、适用于现场检测的特点 相似文献
993.
中国病理生理杂志第6—10卷论著的引文分析与比较 总被引:1,自引:0,他引:1
林影 《中国病理生理杂志》1995,11(6):562-566
中国病理生理杂志于1985年创刊,是目前国内唯一的病理生理学科高级学术刊物。本文对该刊第6-10卷所发表的论著做出版周期和引文分析。 相似文献
994.
K Resnicow M Davis M Smith T Baranowski L S Lin J Baranowski C Doyle D T Wang 《American journal of public health》1998,88(2):250-257
OBJECTIVE: This study examined whether providing a school-based teacher wellness program enhances the impact of a health curriculum on student outcomes and improves cognitive, behavioral, and physiological outcomes among participating teachers. METHODS: Thirty-two elementary schools were randomly assigned to experimental or comparison conditions. Comparison group schools received the Gimme-5 program, a curriculum designed to increase fourth and fifty graders' consumption of fruits and vegetables. Experimental schools received Gimme-5 and the teacher wellness program, which included 54 workshops over 2 years, along with several schoolwide health activities. Physiological, behavioral, and cognitive outcomes were assessed in teachers and students. RESULTS: There was no evidence that the intervention favorably modified any student or teacher end points; nor did intervention teachers deliver the Gimme-5 program with greater fidelity than comparison teachers. CONCLUSION: Confidence in the null results is bolstered by the randomized design, baseline sample equivalence, appropriate mixed-model analyses, and lack of selective or differential attrition. Insufficient participation in the wellness program appears a likely explanation for the lack of teacher and student effects. Factors specific to the school setting and intervention may have diminished participation and, thus, intervention effects. 相似文献
995.
一期动静脉转流与并加压破坏深静脉瓣对比的实验研究 总被引:1,自引:0,他引:1
目的:改进一期动静脉转流术的疗效。方法:10只狗双后肢,随机选择一侧后肢行一期动静脉转流,另一侧行一期动静脉转流加水压破坏深静脉瓣。术后30天通过动脉造影进行对比研究。结果:后者能更有效地加速远段深静脉瓣的破坏,使动脉血逆行更远,同时形成更为丰富的侧枝循环,而不会增加肢体肿胀和深静脉血栓的机会。结论:一期动静脉转流加水压破坏深静脉瓣可能是治疗严重肢体缺血更为有效的方法。 相似文献
996.
本文报告两例持续性交界区反复性心动过速(PJRT)患者,应用导管射频消融术治疗,成功地阻断了位于后间隔具有递减传导特性的稳若旁路.随访7~10个月.病人无心动过速发作,提示导管射频消融术是治疗PJRT的有效方法. 相似文献
997.
998.
999.
It has been reported that the two types of muscarinic receptors, "M1" and "M2", exist in the opossum lower esophageal sphincter. The presence of these muscarinic receptor subtypes had been confirmed with the discovery of the M1 selective antagonist, pirenzepine. But little is known about muscarinic receptor subtypes in gastric smooth muscle. The aim of this study was to identify the muscarinic receptor subtypes on the gastric smooth muscle responsible for the contraction of rat gastric muscle strip. Also, we examined the mechanism of the action of aclatonium napadisilate on rat gastric smooth muscle in vitro. The stimulation of M2 receptor caused the contraction of the gastric smooth muscle. McN-A-343, selective M1 agonist, caused weak contraction of the gastric smooth muscle, and this response was not affected by the selective M1 antagonist, pirenzepine. Aclatonium napadisilate stimulated M2 receptor and caused the gastric smooth muscle contraction. We conclude that the contraction of the gastric smooth muscle is caused by the stimulation of the M2 receptor and this reaction was not affected by tetrodotoxin, suggesting the M2 receptor is located directly on the gastric smooth muscle. The weak contraction of the gastric smooth muscle caused by McN-A-343 was not affected by the selective M1 antagonist, pirenzepine, suggesting that McN-A-343 may not be a pure M1 selective agonist. The action of aclatonium napadisilate is supposed to stimulate the M2 receptor. 相似文献
1000.
Ching-Yuang Lin 《Pediatric nephrology (Berlin, Germany)》1988,2(2):224-228
Secondary IgG response to a tetanus toxoid booster and in vitro measurement of immunoglobulin synthesis, antibody-dependent cellular cytotoxicity (ADCC) and -interferon (IFN-) production were evaluated in 20 healthy controls and in 17 children with minimal change nephrotic syndrome (MCNS), during the acute nephrotic phase and 6 months after remission. Defective responses were observed in all but IFN- production during the acute nephrotic phase; these improved with disease remission. There was a significant correlation between decreases in vitro IgG production and ADCC reaction. These data indicate that defective antibody production is associated with decreased ADCC during the acute nephrotic phase of MCNS. 相似文献