地方病

By means of the semigroup theory, spectrum theory, positive cone theory, integrated equation theory and optimal control theory, we obtain the existence of thresholds of these models, the existence and stability of the infection- free equilibrium and the endemic steady state, and the existence of optimal vaccination strategies, etc.

运用泛函分析中的半群理论、谱理论、正锥理论以及积分方程理论和最优控制理论，系统地研究了这些模型的阈值的存在性，无病平衡态和地方病平衡态的存在性和稳定性，最优接种疫苗策略的存在性等。

Before the reform and open policy the partial infectious diseases , endemic disease which controls was started to resurge , the new health , the healthy question also unceasingly appear .

改革开放前已被控制的部分传染病，地方病又开始死灰复燃，新的卫生，健康问题也不断出现。

Snail fever, Kaschin-Beck disease, the Keshan disease and other endemic diseases have come under control.

血吸虫病、大骨节病、克山病等地方病的流行得到了控制。

For the model with exponent input, the endemic equilibrium is locally asymptotically stable when the period of latency is small enough; the endemic equilibrium is unstable when the period of latency is large enough.

对于带有指数输入的情形，发现地方病平衡点当潜伏期充分小时是局部渐近稳定的，当潜伏期充分大时是不稳定的。

As an important grain production base of North China, Hetao area can provide high-grade farm products. But there are some serious eco-geochemical problems including soil salification, which restricts regional agricultural development, and endemic diseases of arseniasis and fluorosis, which badly affect the human health.

作为我国北方重要的粮食生产基地可以为全国生产出优质的绿色产品；但河套地区也具有比较严重的生态地球化学问题，首先是土壤的盐渍化制约了河套地区农业的发展，其次是全区以砷氟中毒为主的地方病比较严重，极大地影响了该区人民的身体健康。

Besides the technologies of fluorine fixation and decreation, changes in the living habits of the residents, for example, the chili washed by water, the corn husked before it was processed into corn powder, will remove a certain content of fluorine absorbed on the corn husk and will play a important role in endemic fluorosis prevention.

除了采用固氟技术以外，病区居民改变生活习惯，在食用辣椒前用清水淘洗，把玉米粒加工成玉米面前进行脱皮处理，可以除去食物表面相当一部分氟，对预防地方病氟中毒有重要作用。

Jiggers is endemic in Latin America the Columbia, and Sub-Saharan Africa, it's common in poor communities without paved streets where residents walk bare foot.

沙蚤是拉美洲哥伦比亚、撒哈拉沙漠以南非洲的地方病，通常是在贫穷的没有铺路社区，在这些地方人们都是光着脚走动。

A 44-year-old woman suffered feer, headache and meningism during a summer stay in a region of central Italy where sand-fly feer is endemic.

夏季，在意大利的一个中心区域，白蛉热是那里的地方病，一位44岁的妇女遭受着发热，头痛和假性脑膜炎。

Awards and Publications: Dr. Liang was awarded progressor in the handling of the first outbreak 0f plague in Guangxi (2001) and progressor in the field of endemic diseases prevention and control .

科研成果以及论文发表情况：获广西区人民政府颁发的&广西首次鼠疫疫情处理工作先进个人（2001）&和&广西地方病防治工作先进个人（2002）&。

In recent three years, researches in SDU are increasing in quantity and quality as well as diversity. The university has acquired 20 national research projects, 109 provincially projects.

学校在全面加强学科专业建设的同时，发挥自身优势，紧密结合实际，开展了煤炭深加工、辽金文学、北魏文化、云冈石窟保护、地方民俗、地方病防治、高寒地区作物等领域的研究。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。