死亡原因

Ultimately, vulnerable groups of neurons atrophy and die in a process that may involve excitotoxicity (overstimulation of neurotransmitter receptors on neuronal surface membranes), collapse of calcium homeostasis, inflammation, and depletion of energy and growth factors. A form of apolipoprotein E, apoE4, contributes to the abnormal accumulation of A and tau, but probably also damages mitochondria and the cellular cytoskeleton. A , tau, apoE and -synuclein interact with many other molecules and modulate diverse signalling cascades that regulate neuronal activity and survival.

最后，易感神经元会萎缩直至死亡，原因可能有兴奋性中毒（神经递质对神经元表面受体的过度刺激引起），钙稳态失衡，炎症反应，能量和生长因子的耗尽。apoE4的产生可导致A肽和tau蛋白的异常聚合，可能也损害线粒体和细胞骨架。A肽、tau蛋白、apoE和突触核蛋白可与很多分子反应，也可调节不同信号级联反应，这些级联反应对于维持神经元活动性和生存性意义重大。

Gentleman orchid drenchs rot the root dies after water, the likelihood has the reason of two respects, it is basin earth too wet, because gentleman Lan Xihuan is loose,understand the edaphic requirement that appear, once basin earth is medium moisture is too big, its bulky flesh pledges the root arrived to will come in October between November, already entered stop to grow or grow very slow condition, do not need how many moisture, need to hold basin ground only wet can, drench water causes those who rot the root is unavoidable too much; 2 it is you drench when water, flow into the phyllome center of plant the dirt that will have smudgy part along with all the others, and at this moment water of blade rising bad news is less, sewage accumulating is inside Xie Cong, also can choose sodden heart sodden root.

君子兰淋水后烂根死亡，可能有两个方面的原因，一是盆土过湿，因君子兰喜欢疏松通透的土壤条件，一旦盆土中水分过大，其粗大的肉质根到了10月至11月间，已进入停止生长或生长很慢的状态，不需要多少水分，只需要保持盆土湿润即可，淋水过多造成烂根是在所难免的；二是你淋水时，将会有脏污成分的尘土等一并流入植株的叶丛中心，而这时叶片蒸腾耗水较少，脏水积在叶丛内，也会选成烂心烂根。

The primary efficacy end point was the incidence of asymptomatic deep-ein thrombosis determined by bilateral enography, objectiely confirmed symptomatic deep-ein thrombosis or pulmonary embolism, and death from all causes during treatment.

观察的初始效果及最终指标包括：通过双侧静脉造影发现的无症状的深部静脉血栓形成，有症状客观存在的深部静脉血栓或肺栓塞及由于各种原因在治疗过程中死亡数等。

For some reason the earth gets too cold too fast causing death for many polar and temperate region animals.

地球因各种原因气温突然变的过低导致了极地和温带的动物死亡。

The purpose of a postmortem is to discover the cause of death.

验尸的目的是发现死亡的原因。

They are breathing these gases while they are still potent and this is what causes crib death.

他们是呼吸，这些气体的同时，他们仍然是烈性，这是什么原因垛死亡。

For example,many developing countries do not have safe waters and mix the containated water with pounder fumular is a commen cause of death among events.

这就是为什么母乳喂养的孩子更少患腹泻、更少患呼吸道感染的原因，特别是减少了像腹泻和肺炎这类普通儿童疾病导致的死亡风险。

In most wild populations, human predation is the predominant form of mortality, he notes.

他认为："对大多数野生动物种群来说，人类的捕猎才是造成死亡的主要原因。"

Environmental pollution is believed to be the cause of health problems, including chronic tracheitis, deaths from premature delivery, asthma and the list continues.

环境污染被相信是健康问题的原因，包括慢性支气管炎，早产儿死亡，气喘等，相关项目的清单还在增加着。

Prematurity is the leading cause of death in newborn babies.

早产是新生儿死亡的一个重要原因。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。