您的云是什么样的

如果要在下图的天空里描绘云朵，您会描绘出什么样的云？请从下面的选项中选择。 这是根据图画而诊断人的性格的心理测验。在所描绘的画中可以反映人的性格。尤其是一些像云一样的暧昧不明的物体，更能凸显人的个性。     

由帕勒莫的点球想到的

在一场足球比赛中，我们把同一个球员射进三个进球称为“帽子戏法”，通常射术高超的球员在比赛中完成一次“帽子戏法”往往能给球迷带来无限的享受。当然，对球员来说，要想在比赛中完成“帽子戏法”也是一件非常不容易的事情，     

用于生物材料的聚乙烯醇的研究进展

聚乙烯醇(PVA)是一种用途很广的高分子聚合物,其毒性低,生物相容性好,亲水性强,有良好的成膜性、黏结力和乳化性,在生物医学领域有广泛应用.主要介绍聚乙烯醇在支架材料、骨材料、药物释放系统、膜剂、涂膜剂及外科手术等中的应用研究.对聚乙烯醇的进一步研究和开发,将赋予其更广泛的医药应用前景. Abstract： Polyvinyl alcohol (PVA) is a very useful polymer, which has low toxicity, good bioeompatibility and high hydrophilieity and good abilities of film-forming, adhering and high emulsification. It has been widely used in many biomedical areas. In this review, we mainly focused on introducing the applications of PVA in scaf-fold material, bone material, drug delivery system(DDS), film, surgery and so on. With further research and devel-opment, PVA will be given a wider range of pharmaceutical and medical applications.     

适合的就是好的

我习惯于中学时有老师指导的学习方式，字习成绩优秀，而且顺利地考上了重点高中。可是进了高中，我才发现自己不但没有优势，而且由于没有养成好的学习习惯，甚至根本不会学习（也许说不会自己学习更确切）。由于住校，也不能及时地得到父母的帮助，这一问题显得更加突出。我虽然作过各种努力，但始终效果不佳，学习成绩也受到影响。眼看离高考的时间越来越近，我真的非常焦急。恳求您教我一个在短时间内能见效的、好的学习方法!     

基于Watersnake的视神经纤维的自动识别

在视神经横切面图像中，将每个神经纤维的边界精确地分割出来，是视神经形态分析的重要环节。由于神经纤维数量巨大、形态各异，单纯采用一种分割方法无法获得满意效果。采用基于Watersnake的分割方法，整合Watershed和Snake在图像分割方面的优势，分两步进行纤维分割。首先由Watershed获取纤维的粗轮廓，在此基础上由Snake经曲线演化获得纤维的精细轮廓。实验结果表明，Watersnake能较好地识别神经纤维的内外轮廓，为后续的神经纤维形态分析奠定基础。     

您的云是什么样的

<正>如果要在下图的天空里描绘云朵,您会描绘出什么样的云?请从下面的选项中选择。这是根据图画而诊断人的性格的心理测验。在所描绘的画中可以反映人的性格。尤其是一些像云一样的暧昧不明的物体,更能凸显人的个性。     

我的婆婆，我的家

女人选老公，除了要看他对自己好不好，还要看他的家庭对你够不够好，这对于今后的家庭生活很关键。老公第一次带我去见他的父母时，我就感受到了公婆的热情不是“装”出来的，是发自内心的呵护，彼此之间都给对方留下了良好印象。     

我的长发 你的眷恋

春天的梦幻 刚到医院上班的那年春天,由于性格孤僻,每每值夜班的时候,我总是一个人躲在屋子里看书或是听收音机。很偶然的,我发现每晚8点,市电台有个“佳作欣赏”栏目,主持人青青用他那浑厚而有磁性的嗓音朗诵一篇又一篇优美的文章,总是能恰到好处地把作者与主人公的心声读出来,让听众感同身受。慢慢的,我喜欢上了这个节目,即使不值班,只要没有特殊的事情,每晚8点,我都会准时打开收音机。听青青的声音,成了一种享受,     

你的缺陷,我的最爱

在看电影《心灵捕手》时,我曾被其中的一个细节深深地打动:绝顶聪明而又叛逆不羁的威尔因为出身卑微,拒绝了出身中产阶级的哈佛女友史凯兰的追求,可是他的内心又痛苦万     

TGF-β的信号转导的调控

TGF- β家族通过调节靶基因的表达发挥作用 ,其细胞内信号转导通路是 TGF- β的膜受体与靶基因之间的桥梁。TGF- β信号转导的调控是多层次、多水平的。凡能够调控以上信号转导过程中蛋白质 -蛋白质和蛋白质- DNA相互作用的因子就能在各个环节上影响 TGF- β家族的信号转导 ,从而产生多种多样的生物学效应     

Modeling life

We seek to construct physical and mathematical models of life. Such models allow us to test our understanding of how living systems function and how they respond to human imposed stimuli. One system is a genomically and chemically complete model of a minimal cell. This cell is a hypothetical bacterium with the fewest number of genes possible. Such a minimal cell provides a platform to ask about the essential features of a living cell and forms a platform to investigate “synthetic biology.” A second system is “Body-on-a-Chip” which is a microfabricated microfluidic system with cells or tissue constructs representing various organs in the body. It can be constructed from human or animal cells and used in drug discovery development. That model is a physical representation of a physiologically based pharmacokinetic model. Both the computer and the physical models provide insight into the underlying biology and provide new tools to make use of that understanding to provide benefits to society.     

Early life environment, life history and risk of endometrial cancer

Endometrial cancer risk is influenced by reproductive behaviours, including parity and breastfeeding, and timing of life history events such as age at menarche and menopause. One potential mechanism by which altered reproductive strategies may influence endometrial cancer risk is through exposure to reproductive hormones. Current theory suggests that high lifetime exposure to oestrogen, unopposed by progesterone, increases endometrial cancer risk; here we suggest that progesterone deficiency itself may also play a significant role. Additionally, given that reproductive profile variables are themselves influenced by early childhood conditions, we hypothesise that endometrial cancer risk may be influenced by the childhood psychosocial environment as mediated through changes to adolescent and adult reproductive behaviours and hormone exposures. Investigating reproductive cancers, including endometrial cancer, using a life history approach may help to increase understanding of why these cancers occur and potentially help implementation of early detection and screening processes in the future.