中职与高职衔接：西藏高职教育可持续发展必由之路

提高技能型人才培养的社会适应性是西藏中高职衔接的主要目标。基于对于高职衔接基本内涵的把握,结合中高职衔接的理论和现实依据,西藏可持续发展高职教育的重要途径,一是借鉴国内外成功经验,选择适合西藏高职发展的学制衔接模式;二是结合藏区职教发展现状,探索贯穿西藏职业教育的要素衔接途径。     

温度与微生物制剂对小麦秸秆腐解及土壤碳氮的影响

【目的】探讨不同温度和添加微生物制剂条件下,小麦秸秆腐解对土壤中不同形态碳、氮含量的影响,为评价秸秆还田措施补充土壤养分、改善土壤肥力的贡献提供理论依据。【方法】采用室内模拟恒温培养方法,于15和20 ℃条件下,在装有127.5 g风干土样的培养盆中,分别添加不同量秸秆（0.961,0 g/盆）和微生物制剂（2.88,0.961,0 mg/盆）,后培养75 d,测定秸秆腐解期间CO₂释放量及腐解后土壤中不同形态碳、氮的含量。【结果】温度对秸秆腐解和养分释放影响较大,而微生物制剂未表现出作用效果。经75 d腐解培养后,添加秸秆与对照相比,15 ℃下秸秆CO₂-C的净累积释放量较20 ℃下低37.1%,而土壤有机碳和微生物量碳净增量分别增加了260%和949%;同时,15 ℃下土壤全氮和铵态氮含量分别较20 ℃下降低了100%和18.4%,微生物量氮提高了262%。【结论】较低的温度有利于秸秆对土壤有机碳和微生物量碳、氮的截留和保蓄,而较高的温度会加速秸秆有机碳向无机碳转化,同时微生物制剂在本研究的水热条件下未能发挥作用。     

滨州学院校园环境噪声监测与评价

通过监测山东省滨州学院不同功能区的昼夜间环境噪声值,计算出滨州学院校园的实际连续噪声等级值,与国家规定的大学校园应执行的噪声管理标准进行比较来评价校园环境噪声的污染现状。在调查、分析的基础上,确定对噪声状况影响较大的污染源。结果表明:学校除了南门口、大学生服务中心、15号宿舍楼噪声污染较大外,其余区域的噪声在昼间基本上均不对师生学习和工作造成影响,但在夜间文教区与学生宿舍的噪声值超标较多,并且已对师生们的学习和休息造成一定影响。总体上讲,学校声环境质量良好。     

Epinephrine-induced ventricular arrhythmias in dogs anesthetized with halothane: potentiation by thiamylal and thiopental

Epinephrine-induced ventricular arrhythmias were studied in 8 dogs anesthetized at weekly intervals with halothane (1.09% end-tidal concentration) preceded by thiamylal or thiopental (20 mg/kg of body weight). Lead II, bundle of His and high right atrial electrograms, and femoral artery and airway pressures were recorded. Epinephrine was infused in logarithmically spaced increasing rates (initial rate = 0.25 micrograms/kg/min) for a maximum of 2.5 minutes. The maximal (greater than or equal to 4 ventricular premature depolarizations within 15 s of each other) and minimal (all other ventricular or junctional rhythms) arrhythmogenic doses were calculated (infusion rate X time to arrhythmia). The mean (+/- SD) minimal arrhythmogenic dosages for the thiamylal-halothane, thiopental-halothane, and halothane-only groups were 1.84 +/- 0.66, 1.83 +/- 0.64, and 3.69 +/- 1.32 micrograms/kg, respectively; the mean (+/- SD) maximal arrhythmogenic dosages were 2.32 +/- 0.77, 3.37 +/- 1.30, and 8.86 +/- 4.40 micrograms/kg, respectively, with no change after 4 hours of anesthesia. During infusion of the maximal arrhythmogenic dosages, the mean infusion of the maximal arrhythmogenic dosages, the mean percentage increase in serum K+ for thiamylal-halothane, thiopental-halothane, and halothane-only groups was 33 +/- 14%, 31 +/- 13%, and 38 +/- 18%, respectively.     

脑包净脑室内注射治疗羊脑包虫病效果观察

为了驱治羊脑包虫病，采用自制的“脑包净”注射液进行侧脑室和包囊内注射治疗。病羊４１ 只，治愈３１ 只，治愈率７５．６１％ ；其中侧脑室注射的治愈率８４．６２％ ，但需较长时间才痊愈；包囊内注射的治愈率７１．４３％ ，但痊愈较快，较彻底。脑内注射给药治疗羊脑包虫病较手术疗法施治面宽，无复发隐患，安全性好，操作简便；较其它途径给药疗法用药量少，疗效高，副作用小     

Changes in endothelial glycocalyx in ischemia-reperfusion injury and their relationship with microvascular permeability

AIM: To determine the role of the glycocalyx in microvascular permeability. METHODS: Dextran was intravenously injected and quatitatively examined in the rat transient cerebral ischemic model. At the same time, endothelial glycocalyx(anionic sites) was labelled with the probe cationic gold colloid(CGC) using post-embedding technique and examined with electron microscope. RESULTS: The labeling of CGC decreased significantly following ischemia, meanwhile, microvascular permeability to dextran increased. CONCLUSION:Endothelial glycocalyx is very sensitive to ischemia or anoxia. Its disruption may be the initiator of the dysfunction of endothelium and the determinant of increased permeability.     

Lower Extremity Amputation and Application of a Prosthetic Device in a 1-Month-Old Calf

During correction of a dystocia, a fracture occurred involving the right third and fourth metacarpus of a calf. Application of a plaster cast resulted in devitalization of the limb. The distal limb was amputated, and a prosthetic device capable of periodic lengthening was fitted. The calf was able to walk well 1 month following surgery.     

HBV相关性慢加急性肝衰竭患者短期预后模型的建立与评估

目的 探讨影响HBV相关性慢加急性肝衰竭(HBV-ACLF)患者短期生存预后的危险因素并建立预后模型.方法 收集72例HBV-ACLF患者临床资料,根据90 d生存情况分为生存组(33例)和死亡组(39例),采用logistic回归分析危险因素,并构建预后预测模型.结果 死亡组年龄、中性粒/淋巴细胞比值及血清谷丙转氨酶...     

城市土地资源经济的理论与应用分析

从理论和应用两个层面,分析了土地资源具有的经济特性,并利用西方经济学的边际产出原理,剖析了地租的形成与类型,阐述了地租与地价的关系;最后,探讨了影响土地与房地产市场的主要因素以及房地产供求关系。文章的观点和结论对政府有效管理土地和投资者开发经营房地产,都具有指导和参考价值。