西双版纳石灰岩山建群树种——油朴的研究

油朴（Ｃｅｌｔｉｓｗｉｇｈｔｉ）为榆科常绿大乔木，是一种很有价值的油料植物。它在中国仅产于西双版纳，并几乎只生长在石灰岩山森林群落中，而常为该森林群落的建群树种。根据野外调查及萌发裁培试验，我们从生物学、生态学及种群等方面对它进行了分析研究。并且，为了探讨油朴与石灰岩山钙基质的相关性，我们在种子萌发及幼苗生长试验中，均采用了不同土壤基质，对它们进行了对比分析研究。在其种群的调查中，对株高５ｍ以下的幼苗、幼树及株高５ｍ以上的成年大树均进行了样方调查及高度级统计分析。初步总结了这种植物种子萌发的特性；幼苗生长的规律；种在石灰岩山森林分布的一般规律及它们在各群落的种群结构状况等。通过本文，基本上可了解油朴在西双版纳的生长、分布规律及生态。

四川省对公路汽车客运收取油料差价

最近,四川省物价局、交通厅以川交生(1992)70号文通知各地,鉴于1091年以来汽车用燃、润油料价格调高,计划供油指标减少,以及车辆配件价上涨、运输成本上升,企业出现大面积亏损等实际情况,为使企业增加的支出得到适当弥补,

论我国野生可食植物资源的开发利用

一、重大意义 (一)温饱的需要 我国是一个七山二水一分田的国家,人均耕地只有1.27亩,只相当于世界人均耕地的1/3,尤其是当前我国的耕地正以每年500多万亩的速度在减少,而人口却以每年1500万的速度在增长。预计到2000年,我国的人口将达到13亿(人均耕地1.1亩),约需粮食5158.5亿kg,若按常规的增产速度计算,我国可能出现550亿kg粮食的缺口。预计到2050年,我国则不得不用大约10亿亩耕地来养活15亿以上的人口。如果不是科学地、全面地开发我国的食物资源,那么我国的耕地显然不足以维持中华民族的温饱。

中班“10以内序数”活动设计

情况分析我园因人数少,不能像正规幼儿园那样分班。只能2.5～3.5岁为小班,3.5～6岁为中班。这样,幼儿在年龄、智力上有很大差异,给教学带来很大困难。年龄大、智力强的幼儿会正确点数10以内物体,并能说出总数,能目测10以内物体。年龄小、智力弱的幼儿只能认读5以内的数,点数物体时,速度较慢,有时还会说错总数。在教学时,如果提出统一的要求,进行同一的内容,是不可能取得理想的教学效果的。因此,在指导幼儿给物体编序。

ANTI-INFLAMMATORY EFFECTS OF MAGNOLIAE FARGESII VOLATILE OIL

Objective To explore the anti-inflammatory effects of magnoliae fargesii volatile oil.Methods Human umbilical vein endothelial cells (HUVECs) were stimulated by TNF-α to express the adhesion molecules. Then the anti-adhesion effects of magnoliae fargesii volatile oil between HUVECs and human peripheral neutrophils were observed. The ischemia-reperfusion animal models were established by 60min renal ischemia followed by 1, 3, 6 and 24h reperfusion. Rats were randomly divided into the following groups: the sham-operation controls, ischemic group only treated with normal saline, and treated group infused magnoliae fargesii volatile oil before reperfusion. Then the renal injury of rats was detected. Results High rate of cell adhesion between HUVECs and neutrophils was observed. Magnoliae fargesii volatile oil could inhibit the adhesion process at the concentration of 0.5μL/mL (191.6±8.6), 1.0μL/mL (158.2±9.0) and 2.0μL/mL (155.2±9.7) (P<0.05). The anti-adhesion effects were strengthened with the increase of volatile oil concentration. Blood urea nitrogen and creatinine levels of the animal models were significantly increased after 24h reperfusion while the increase was remarkably attenuated by the treatment with magnoliae fargesii volatile oil. The renal injury was severe after 1h reperfusion, which was significantly attenuated by the treatment of magnoliae fargesii volatile oil. Conclusion Magnoliae fargesii volatile oil has anti-inflammatory effects.

关於杭州国立艺专教师们的生活体验

承嘱介绍杭州国立艺专的教师们参加实际生活的情况,因为手边没有当时小组研究和观摩会的材料,所以无法介绍得很完整。共中如有不正确的地方,希望大家指正。