共查询到20条相似文献,搜索用时 31 毫秒
1.
David Hakken 《American anthropologist》2001,103(2):535-539
The Machine in Me: An Anthropologist Sits among Computer Engineers. Gary Downey. New York: Routledge, 1998. 288 pp.
Cyborg Babies: From Techno-Sex to Techno-Tots. Robbie Davis-Floyd and Joseph Dumit. eds. New York: Routledge, 1998. 358 pp.
Modest_Witness. Second_Millennium. FemaleMan© _Meets_OncoMouse™ . Feminism and Technoscience. Donna Haraway. New York: Routledge, 1996 361 pp.
Silicon Second Nature: Culturing Artificial Life in. Digital World. Stefan Helmreich. Berkeley: University of California Press, 1998. 314 pp. 相似文献
Cyborg Babies: From Techno-Sex to Techno-Tots. Robbie Davis-Floyd and Joseph Dumit. eds. New York: Routledge, 1998. 358 pp.
Modest_Witness. Second_Millennium. FemaleMan
Silicon Second Nature: Culturing Artificial Life in. Digital World. Stefan Helmreich. Berkeley: University of California Press, 1998. 314 pp. 相似文献
2.
Carol A. Smith 《American anthropologist》1997,99(2):381-383
Articulating Hidden Histories: Exploring the Influence of Eric R. Wolf. Jane Schneider and Rayna Rapp. eds. Berkeley: University of California Press, 1995.400 pp.
Reconceptualizing the Peasantry: Anthropology in Global Perspective. Michael Kearney. Boulder, CO. Westview Press, 1996. 210 pp. 相似文献
Reconceptualizing the Peasantry: Anthropology in Global Perspective. Michael Kearney. Boulder, CO. Westview Press, 1996. 210 pp. 相似文献
3.
DefinitionMenopause begins one year after the last menstrual period. Symptoms often begin in the perimenopausal years.Incidence/prevalenceIn the United Kingdom the mean age for the menopause is 50 years 9 months. The median onset of the perimenopause is between 45.5 and 47.5 years. One Scottish survey (of 6096 women aged 45 to 54 years) found that 84% had experienced at least one of the classic menopausal symptoms, with 45% finding one or more symptoms a problem.1
Interventions
- Beneficial:OestrogensTibolone
- Likely to be beneficial:ProgestogensClonidine
- Unknown effectiveness:Phyto-oestrogensTestosteroneAntidepressants
4.
Sokolov EN Nezlina NI Polianskiĭ VB Evtikhin DV 《Zhurnal vysshe? nervno? deiatelnosti imeni I P Pavlova》2001,51(4):421-437
The concept of orienting reflex based on the principle of vector coding of cognitive and executive processes is proposed. The orienting reflex to non-signal and signal stimuli is a set of orienting reactions: motor, autonomic, neuronal, and subjective emphasizing new and significant stimuli. Two basic mechanisms can be identified within the orienting reflex: a "targeting reaction" and a "searchlight of attention". In the visual system the first one consists in a foveation of a target stimulus. The foveation is performed with participation of premotor neurons excited by saccadic command neurons of the superior colliculi. The "searchlight of attention" is based on the resonance of gamma-oscillations in the reticular thalamus selectively enhancing responses of cortical neurons (involuntary attention). The novelty signal is generated in novelty neurons of the hippocampus, which are selectively tuned to a repeatedly presented standard stimulus. The selective tuning is caused by the depression of plastic synapses representing a "neuronal model" of the standard stimulus. A mismatch of the novel stimulus with the established neuronal model gives rise to a "novelty signal" enhancing the novel input. The novelty signal inhibits current conditioned reflexes (external inhibition) contributing to redirecting the behavior. By triggering the expression of early genes the novelty signal initiates the formation of the long-term memory connected with neoneurogenesis. 相似文献
5.
Chinchilla "big" and "little" gastrins 总被引:1,自引:0,他引:1
Gastrin heptadecapeptides (gastrins I and II which differ in the presence of sulfate on the tyrosine of the latter) have been purified and sequenced from several mammalian species including pig, dog, cat, sheep, cow, human and rat. A 34 amino acid precursor ("big" gastrin), generally accounting for only 5% of total gastrin immunoreactivity, has been purified and sequenced only from the pig, human, dog and goat. Recently we have demonstrated that guinea pig (GP) "little" gastrin is a hexadecapeptide due to a deletion of a glutamic acid in the region 6-9 from its NH2-terminus and that GP "big" gastrin is a 33 amino acid peptide. The chinchilla, like the GP, is a New World hystricomorph. This report describes the extraction and purification of "little" and "big" gastrins from 31 chinchilla antra. Chinchilla "little" gastrin is a hexadecapeptide with a sequence identical to that of the GP and its "big" gastrin is a 33 amino acid peptide with the following sequence: (See text) 相似文献
6.
目的:探讨概念图策略在高职护理专业生理学教学实践中的效果。方法:随机抽取57名学生作为实验组,54名学生作为对照组;实验组施行概念图策略教学法,对照组则采用传统教学法。分别比较两组学生的单元测验成绩和期末考试成绩,并于全部课程结束后进行问卷调查,分析调查结果。结果:实验组学生的单元测试成绩和期末考试成绩均明显高于对照组学生,差异具有统计学意义(P<0.05);实验组94.34%的学生认为教学能够提高学习主动性,而对照组为64.81%;实验组84.21%的学生认为教学有助于提升对课程内容的理解,而对照组为64.11%;实验组87.72%的学生认为教学促进师生互动,而对照组为38.89%;实验组84.21%的学生认为教学可增强团队合作精神,而对照组为57.41%。实验组的调查结果明显优于对照组,差异具有统计学意义(P<0.05)。结论:将概念图策略引入高职护理专业的生理学课程教学实践中,能够更好的帮助学生掌握生理学的理论体系,提升教学质量,提高学生的专业知识水平。 相似文献
7.
Golub MS Kaufman FL Campbell MA Li LH Donald JM 《Birth defects research. Part B, Developmental and reproductive toxicology》2006,77(5):455-470
BACKGROUND: A variety of progestational agents have been used therapeutically and evaluated for adverse effects over the last 50 years. However, progesterone itself has come into use as a therapeutic agent only recently with the development of an orally bioavailable "micronized" preparation. METHODS: The current review examines progesterone adverse effects as identified in the larger literature on the toxicity of progestational agents and pharmacokinetics. RESULTS: Progesterone has cytoplasmic and membrane receptors in a variety of reproductive and nonreproductive tissues including the brain and is a potent inhibitor of GnRH. Limited information is available on progesterone receptors and actions in the fetus. Concern about exogenous progestagen effects on fetal reproductive tract development have led to considerable human research over the years, but this literature review demonstrates that contemporary developmental toxicology research on progesterone is lacking. CONCLUSIONS: Progesterone is a potent, multi-faceted endocrine agent with an expanding therapeutic profile and a minimal scientific database for evaluating safe use during pregnancy. 相似文献
8.
Paola Felippucci 《American anthropologist》1999,101(3):690-691
Italy's "Southern Question": Orientalism in One Country. Jane Schneider. ed. New York: Berg, 1998. 299 pp. 相似文献
9.
Analysis of the cytoskeleton in morphogenetically active plant cells allows us to propose a unified concept for the structural organization of eukaryotic cells. Their cytoarchitecture is determined by two principal structural complexes: nucleus-microtubule-based cell bodies ("bugs") and plasma-membrane-F-actin-based cell periphery complexes ("cages"). There are dynamic interactions between each of these entities in response to extracellular and intracellular signals. In the case of the cell body, these signals determine its polarization, rotation and migration. Interactions between cell body and cell periphery complexes determine cell growth polarity and morphogenesis throughout the eukaryotic kingdom. 相似文献
10.
Diane M. Nelson 《American anthropologist》1997,99(2):383-386
Imperial Leather: Race, Gender and Sexuality in the Colonial Contest. Anne McClintock. New York: Routledge, 1995. 449 pp.
Race and the Education of Desire: Foucault's History of Sexuality and the Colonial Order of Things. Ann Laura Stoler. Durham, NC: Duke University Press, 1995. 238 pp.
Colonial Desire: Hybridity in Theory, Culture, and Race. Robert J. C. Young. London: Routledge, 1995.236 pp. 相似文献
Race and the Education of Desire: Foucault's History of Sexuality and the Colonial Order of Things. Ann Laura Stoler. Durham, NC: Duke University Press, 1995. 238 pp.
Colonial Desire: Hybridity in Theory, Culture, and Race. Robert J. C. Young. London: Routledge, 1995.236 pp. 相似文献
11.
Opossum (Didelphis virginiana) "little" and "big" gastrins 总被引:1,自引:0,他引:1
Y Shinomura J Eng S C Rattan R S Yalow 《Comparative biochemistry and physiology. B, Comparative biochemistry》1990,96(2):239-242
1. "Little" gastrins from most mammalian species are 17 amino acid peptides and the precursor "big" gastrins are 34 amino acid peptides. 2. "Little" gastrins of the New World hystricomorphs, guinea-pig and chinchilla, are 16 amino acid peptides due to deletion of a glutamic acid in the region 6-9 from their NH2-terminus and the corresponding "big" gastrins are 33 amino acid peptides. 3. Antral gastrins from the opossum, a New World marsupial, have a glutamic acid deletion in the same region as the hystricomorph gastrins. 4. Opossum "big" gastrin is a 33 amino acid peptide with the following sequence: less than ELGPQDLPYLTADLSKKQGPWLEEEEAYGWMDF#. 相似文献
12.
Abstract: The structures of purified "soluble"and "detergent-soluble"bovine caudate nucleus acetylcholinesterases were compared by peptide mapping on polyacrylamide gels. The digestion products generated from the two acetylcholinesterases on proteolysis by a given protease ( Staphylococcus aureus V8 protease, α-chymotrypsin, or papain) are remarkably similar as judged from the electrophoretic band patterns. We conclude that the "soluble"and "detergent-soluble"acetylcholinesterases from bovine caudate nucleus share a common evolutionary origin. 相似文献
13.
Al-Qattan MM 《Plastic and reconstructive surgery》2001,108(2):336-342
Pericranial flaps are thin and, hence, their volumes are small. Therefore, their use for soft-tissue augmentation has not been popular. In this article, the author introduces a new concept: the use of a multifolded pericranial flap as a "plug" or a "pad" for localized contour defects. Eight patients were included in the study. In all cases, an anteriorly based pericranial flap was used, and the flap was folded on itself several times to increase its bulk. The results were satisfactory in all patients. The literature on the topic is reviewed, and the blood supply of pericranial flaps is discussed. 相似文献
14.
Weighting improves the "new Haseman-Elston" method 总被引:6,自引:0,他引:6
Forrest WF 《Human heredity》2001,52(1):47-54
Elston et al. [Genet Epidemiol, in press] apply the results of Wright [Am J Hum Genet 1997;60:740-742] and Drigalenko [Am J Hum Genet 1998;63:1242-1245] to extend the traditional Haseman-Elston regression scheme [Haseman and Elston, Behav Genet 1972;2:3-19] to include not only linkage information contained in the sib pair's squared difference, but also information in their mean-corrected squared sum. The new algorithm detects linkage to a quantitative trait locus by modelling sib pair trait covariance as a function of identity-by-descent status. We demonstrate why this new estimator is suboptimal and can in some cases be inferior to the original Haseman-Elston method. We also describe a simple approach to estimation which improves on this new Haseman-Elston method by incorporating variance-based weights into the test statistic while staying within the linear modelling framework. In support of our theoretical claim, we conduct both a sib pair simulation and an application to GAW 10 sib pair data showing that our new estimator is superior to both the old and new Haseman-Elston schemes currently implemented in the analysis package S.A.G.E. 4.0. 相似文献
15.
Objective: The causes of adult weight gain leading to obesity are uncertain. We examined the association of adult weight gain and obesity with subscales of eating behavior characteristics in older women. Methods and Procedures: Current height and weight, eating behavior subscales (disinhibition subscales—habitual, situational, and emotional; restraint subscales—flexible and rigid; hunger subscales—internal and external) as assessed using the Eating Inventory (EI), and self‐reported body weight at six prior age intervals were reported by 535 women aged 55–65 years. Multiple regression analysis was used to examine the relationships between EI subscale scores and weight change from the age interval of 30–39 to 55–60 years and current BMI. Results: The strongest correlate of weight gain over 20 years was susceptibility to overeating in response to everyday cues within the environment (habitual disinhibition; partial correlation coefficient (r) = 0.25, P < 0.001); susceptibility to overeating in response to emotional states such as depression (emotional disinhibition) was a quantitatively weaker but significant correlate (partial r = 0.17, P < 0.001), and susceptibility to overeating in response to specific situations such as social occasions (situational disinhibition) was not associated with weight gain. Flexible control of dietary restraint attenuated the influence of habitual disinhibition in particular on weight gain and BMI, and was less effective in attenuating associations of emotional or situational disinhibition. Discussion: Lifestyle modification programs for prevention and treatment of adult‐onset obesity currently focus on reducing situational and emotional overeating; the results of this study suggest that a stronger emphasis on strategies that target habitual overeating may be warranted. 相似文献
16.
In the guinea pig cerebellar cortex, three types of Purkinje cells were identified according to the properties of complex spikes: fast, intermediate, and slow cells. Fast Purkinje cells have following properties as compared with slow Purkinje cells: (i) salient components with short intervals in complex impulses (on the average, five components with a period of about 2 ms versus two components with a period of about 4 ms); (ii) a short duration of simple spikes (in the average, 2.13 +/- 0.53 ms versus 3.9 +/- 0.65 ms) and a quick restoration of their amplitude after preceding simple spikes (in the mean, 2.83 +/- 0.75 ms versus 11.0 +/- 2.82 ms); and (iii) a more pronounced rebound in the auto-correlation histogram of simple spikes (3.09 +/- 2.12 versus 1.45 +/- 0.36) and a short-latency excitation of simple spikes after complex spikes (2.81 +/- 1.64 versus 1.26 +/- 0.52). A decrease of interspike intervals in simple spike activity of all Purkinje cells was revealed (5.25 +/- 2.71 ms versus 9.71 +/- 3.48 ms in activity fragments without complex spikes). It is supposed that the properties of complex spikes depend on the type of Purkinje cells and may be one of the basic factors determining the interactions between the inputs of climbing and parallel fibers in Purkinje cells. 相似文献
17.
《Journal of Russian & East European Psychology》2013,51(2):70-84
Soviet and foreign linguists and educators continually stress the importance of studying a foreign language within its cultural context. Accordingly, a new field of applied linguistics has emerged, at the borderline between linguistics and foreign language instruction, that we have termed "glossoethnography" [see 1, 2, 4, 61. This new area of linguistics has not yet sufficiently delimited i t s subject matter: it abuts on other areas that are also relatively new and as yet ill defined, such as sociolinguistics, ethnolinguistics, linguistic anthropology, linguistic typology (for the various definitions of these disciplines, see reference 7). The many interesting examples adduced in studies in this new area all deal with specific national features of linguistic means of expression (sometimes in combination with paralinguistic means). However, these specific features exist on different levels: there are the specific features of the real objects expressed in language, and then there are those of the linguistic forms themselves, which are independent of the properties of the real objects to which they refer. 相似文献
18.
Lucien Taylor 《American anthropologist》1998,100(2):534-237
Rethinking Visual Anthropology. Marcus Banks and Howard Morphy. eds. New Haven, CT: Yale University Press, 1997. 306 pp.
Principles of Visual Anthropology. Paul Hockings. ed. Berlin: Mouton de Gruyter, 1995. 562 pp.
Fields of Vision: Essays in Film Studies, Visual Anthropology, and Photography. Leslie Devereaux and Roger Hillman. eds. Berkeley: University of California Press, 1995. 362 pp. 相似文献
Principles of Visual Anthropology. Paul Hockings. ed. Berlin: Mouton de Gruyter, 1995. 562 pp.
Fields of Vision: Essays in Film Studies, Visual Anthropology, and Photography. Leslie Devereaux and Roger Hillman. eds. Berkeley: University of California Press, 1995. 362 pp. 相似文献
19.
J R Koke P D Gupta S K Malhotra 《Biochemical and biophysical research communications》1971,42(3):576-582
20.
D Wender 《BMJ (Clinical research ed.)》1987,295(6613):1595-1597
For a stroke victim there may be at least three types of strange occurrences: incorrect saying, seeing, and thinking. To the patient only the third seems to be "crazy". After a stroke (left hemisphere), which mainly produced serious aphasia, I (the patient) felt crazy two or three times when someone said something I expected him to say. On the other hand, my initial aphasic "gibberish speech" and an occasional false vision did not seem crazy. In my case the vision is always a car or a child, seen on my extreme right, where I am otherwise blind from the stroke. I am always driving when it happens; in recent years this phenomenon occurs when I am tired or tense, or the light is poor. These rapid visions do not seem insane but merely physical problems in my eyes, much like ordinary people''s dreams. 相似文献