共查询到20条相似文献，搜索用时 15 毫秒
1.
Howard M. Reid 《Learning & behavior》1987,15(4):375-378
SJL/J mice underwent one-trial passive avoidance training, followed immediately by either electroconvulsive shock (ES) or sound-induced seizure. Testing of the passive avoidance response occurred 72 h later. It was found that an ES-induced seizure, but not a sound-induced seizure, caused amnesia for the passive avoidance learning. 相似文献
2.
Three emotionally divergent strains of mice (SWR/J, A/HeJ, and SJL/J) were mated to produce three populations: a pure strain population (N = 90), an F1 population (N = 120), and an F2 population (N = 96). All Ss were tested on a battery of measures of emotionality. Each population was factored separately by principal components factoring with varimax and promax rotations. Factorial invariance was assessed quantitatively by congruence coefficients. Eight of the resultant factors were found to be replicable across populations. These were autonomic balance, motor discharge, territorial marking, acrophobia, tunneling-1, tunneling-2, underwater swimming, and audiogenic reactivity. Of the eight factors, motor discharge was most distinct in each population and tunneling-1 was least distinct. 相似文献
3.
高校学生信息管理系统采用J2EE技术和多层体系结构,其包括运行在客户端机器上的客户层组件、运行在J2EE服务器上的Web层组件、运行在J2EE服务器上的业务逻辑层组件和运行在EJS服务器上的数据服务器。该系统EJB的设计也采用了多层结构,设计了25个实体Bean与学生信息管理系统的25个数据表一一对应,然后采用了二个无状态会话Bean来管理上述25个实体Bean。 相似文献
4.
通过对J2ME和J2EE技术的研究,设计了一个移动的网上教学信息发布系统的总体框架,分析了系统中J2ME客户端和J2EE服务器端的关键技术,并对其实现方法进行详细介绍,最后展示了系统的运行结果。 相似文献
5.
Ping Xiang Ron E. McBride Shuqiong Lin Zan Gao Xueying Francis 《Journal of Experimental Education》2018,86(2):233-246
Two hundred forty-six students (132 boys, 114 girls) were tracked from fifth to eighth grades, and changes in gender stereotypes about running as a male sport, running performance, interest in running, and intention for future running participation were assessed. Results revealed that neither sex held gender stereotypes about running as a male sport and students were less likely to hold such stereotypes as they progressed through school. Compared to girls, boys were more likely to perceive running to be more appropriate for boys. Girls with higher gender stereotyping mean scores reported lower interest in running and intentions for future running participation, while boys recording increases in running stereotyping were more likely to retain interest in running and future running participation. This study provides empirical documentation of running as a gender-neutral activity over time in a physical education/athletic setting. From the expectancy-value lens, including gender-neutral activities such as running may encourage interest and participation levels among boys and girls alike. 相似文献
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Vowels with extreme articulatory-acoustic properties act as natural referents. Infant perceptual asymmetries point to an underlying bias favoring these referent vowels. However, as language experience is gathered, distributional frequency of speech sounds could modify this initial bias. The perception of the /i/-/e/ contrast was explored in 144 Catalan- and Spanish-learning infants (2 languages with a different distribution of vowel frequency of occurrence) at 4, 6, and 12 months. The results confirmed an acoustic bias at 4 and 6 months in all infants. However, at 12 months, discrimination was not affected by the acoustic bias but by the frequency of occurrence of the vowel. 相似文献
8.
实验室是高等学校培养实践型、创新型人才的重要场所,对实验室信息进行有效的管理就显得尤其重要。针对目前基于WEB的实验室信息管理系统不能及时将相关信息传达给用户的不足,提出利用J2ME和J2EE相结合的技术,以手机作为接收消息的客户端,让用户能随时随地了解实验室相关信息,服务器端利用J2EE技术实现。开通GPRS后,用户通过手机方便了解实验室相关信息。系统运行过程中,数据流量少,操作简单,能有效促进实验室管理和教学。 相似文献
9.
钟志强 《鞍山师范学院学报》2007,9(6):47-50
在J2ME开发实践基础上,探索了优化J2ME程序的几种方法.主要包括测试基准、优化代码运行速度、优化内存、使用缓存、图形界面的优化、打包应用程序与混淆器优化. 相似文献
10.
赵聪 《湖州师范学院学报》2006,28(5):12-16
“多”和“少”在作状语时,语法上有不对称现象,主要有两种情况:意义不对称,结构对称;意义不对称,结构不对称。以认知语法理论、“三个平面”理论方法为指导,对“多/少 VP/AP”中的不对称现象进行考察和描写,并进一步作出阐释。 相似文献
11.
This study assessed rates of learning disabilities (LD) by several psychometric definitions in children with epilepsy and identified risk factors. Participants (N = 173, ages 8-15 years) completed IQ screening, academic achievement testing, and structured interviews. Children with significant head injury, chronic physical conditions, or mental retardation were excluded. Using an IQ-achievement discrepancy definition, 48% exceeded the cutoff for LD in at least one academic area; using low-achievement definitions, 41% to 62% exceeded cutoffs in at least one academic area. Younger children with generalized nonabsence seizures were at increased risk for math LD using the IQ-achievement discrepancy definition; age of seizure onset and attention-deficit/hyperactivity disorder (ADHD) were risk factors for reading and math LD using low-achievement definitions. Writing was the most common domain affected, but neither ADHD nor seizure variables reliably identified children at risk for writing LD. Although children with earlier seizure onset, generalized nonabsence seizures, and comorbid ADHD appear to be at increased risk for some types of LD by some definitions, these findings largely suggest that all children with epilepsy should be considered vulnerable to LD. A diagnosis of epilepsy (even with controlled seizures and less severe seizure types) should provide sufficient cause to screen school-age children for LD and comorbid ADHD. 相似文献
12.
Previous research in both humans and nonhuman primates suggests that subtle asymmetries in tympanic membrane (TM) temperatures may be related to aspects of cognition and socioaffective behavior. Such associations could plausibly reflect lateralities in cerebral blood flow that support side-to-side differences in regional cortical activation. Asymmetries in activation of the left and right frontal cortex, for example, are correlates of temperamental differences in child behavior and markers of risk status for affective and anxiety disorders. Tympanic membrane temperatures might thus reflect the neural asymmetries that subserve individual differences in temperament and behavior. This report merged findings from four geographically and demographically distinctive studies, which utilized identical thermometry methods to examine associations between TM temperature asymmetries and biobehavioral attributes of 4- to 8-year-old children (N = 468). The four studies produced shared patterns of associations that linked TM temperature lateralities to individual differences in behavior and socioaffective difficulties. Warmer left TMs were associated with "surgent," affectively positive behaviors, whereas warmer right TMs were related to problematic, affectively negative behaviors. Taken together, these findings suggest that asymmetries in TM temperatures could be associated with behavior problems that signal risk for developmental psychopathology. 相似文献
13.
目的：观察戊四氮（PTZ）致痫大鼠海马神经元caspase-3表达以及中药复方AAP的脑保护作用.方法：144只健康成年雄性Wistar大鼠随机分为对照组（CK组）、模型组（PTZ组）、中药大剂量组（AAPl组）、中药中剂量组（AAPm组）、中药小剂量组（AAPs组）和丙戊酸钠组（VPA组）;每组各6只.CK组和PTZ组分别给予生理盐水（4mL/kg.d）灌胃;中药各组分别给予中药复方大、中、小剂量（10.26g/kg、5.13g/kg、2.56g/kg）灌胃,每天1次;VPA组腹腔注射VPA（20mg/kg.d）.造模第一天,除CK组外,其余各组大鼠均腹腔注射戊四氮（PTZ）75mg/kg,观察记录大鼠行为学变化;于致痫后12h、2d、5d、7d相应时间点取材,制备脑标本;免疫组化检测caspase-3表达.结果：致痫后,除CK组外,其余各组海马区caspase-3阳性表达增强;7天,与PTZ组相比,AAPl组、AAPm组和AAPs组海马CA3区caspase-3阳性表达减弱（P〈0.05）.结论：caspase-3参与致痫大鼠海马神经元凋亡过程;AAP能降低caspase-3表达,减少神经元凋亡,有神经保护作用. 相似文献
14.
The existence of information asymmetry has ascended to a significant role in higher education systems. The article makes an attempt to conceptualise the interaction of universities with their environment, stakeholders, and the state by paying special attention to the role and substance of information asymmetry. The existence of information asymmetries has spurred a range of actions by external stakeholders of universities to overcome information asymmetries. The article specifies the nature of these actions and analyses their impact and potential for the reduction of information asymmetry.
相似文献15.
Cécile Barnaud Guy Trébuil Tanya Promburom François Bousquet 《The Journal of Agricultural Education and Extension》2013,19(1):55-74
Abstract Although stakeholder participation is expected to promote equitable and sustainable natural resource management, lessons from the past tell us that more careful attention needs to be paid to achieving equitable impacts. Now the question is how to address social inequities and power asymmetries. Some authors emphasize the need for more dialogue, while others prefer a critical perspective, arguing that dialogue might not be sufficient to avert the risk of a process deepening existing social inequities. This article aims to enrich this debate and question the practical implications of the critical perspective through an in-depth analysis of power games in a participatory process. A Companion Modelling (ComMod) process was conducted in an Akha community of Northern Thailand with a critical perspective, i.e. with a concern for the less influent stakeholders. Simulation tools such as role-playing games were used to mediate a cross-cultural learning process among researchers, farmers and administrators about a local irrigation water management problem. The detailed analysis of power games in this learning and negotiation process reveals that in spite of initial power asymmetries, the poorest farmers of the community started to voice and assert their interests. This was very much due to the role of a Western researcher who put the equity issue on the public agenda and to the strategic support of a charismatic Christian leader. We identify a set of practical facilitation methods that helped to manage power asymmetries and to level the playing field, but we also discuss the main limits of our cultural-embedded methodological choices. Acknowledging that ‘the facilitators’ neutrality' is an illusion, this study allows us to raise the question of their social legitimacy. We suggest that they should systematically make explicit and reflect on their cultural-ideological background and methodological hypothesis and choices and their effects on the socio-political context. This article is an original attempt to accept this challenge. 相似文献
16.
Daniel Enstedt 《Educational theory》2020,70(1):57-72
The world religions paradigm (WRP), often regarded as hegemonic in research and education in religious studies, has long been criticized for being modeled on predominantly Protestant, Christian, and Western ideas about religion, and thus running the risk of reductionism and of a failure to recognize expressions of religion that do not fit this framework. Despite this, it is difficult to get rid of the prevailing WRP, especially in education. In addition, nonconfessional, nonreligious, secular education in religion may be biased by norms and values that assume that religion as such is outdated and irrational. The seemingly neutral, nonreligious, or agnostic position that is present in religious studies at the higher education level can then be seen as aligned with an institutional, not necessarily personal, secular bias that rules out religion from the very outset. Consequently, higher level education about religion runs the risk of presenting religion in terms of flawed stereotypes. In this article, Daniel Enstedt addresses these two interrelated and subject-specific problems by examining them through the lens of Gert J. J. Biesta's educational philosophy, and in particular in relation to his discussion about the three domains of education: qualification, socialization, and subjectification. 相似文献
17.
现代高校办学模式的基本特征分析 总被引：16，自引：0，他引：16
高校办学模式是在一定社会历史条件制约与一定办学理念支配下形成的 ,包括办学目标、投资方式、办学方式、教育结构、管理体制和运行机制在内的具有某些典型特征的理论模型或操作式样。现代高校办学模式具有内涵丰富性与研究多维性、客观制约性与主观选择性、整体优化性与特色鲜明性等基本特征。 相似文献
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Daniel B. Hier M.D. 《Annals of dyslexia》1979,29(1):74-83
Conclusions Sex differences exist in the prevalence of dyslexia as well as in overall verbal ability. These sex differences may reflect
sex differences in hemispheric specialization: males show strong left hemisphere specialization for verbal processing and
strong right hemisphere specialization for spatial processing whereas females show greater bihemispheric participation in
both verbal and spatial processing. The greater hemispheric specialization observed in males may have implications including:
(1) lower verbal ability than in females, (2) higher spatial ability than in females, (3) reduced potential for shifting language
to the right hemisphere after early life left hemisphere injury, and (4) diminished capacity to compensate for unfavorable
left-right anatomic asymmetries of the posterior language zone. Lower overall verbal ability as well as an inability to spare
certain language skills effectively in the face of either unfavorable cerebral asymmetries or early life left hemisphere insults
may partially explain the excess of developmental language disorders (and dyslexia in particular) in boys.
Dr. Hier is a neurologist at the Massachusetts Rehabilitation Hospital, an Instructor in Neurology at the Harvard Medical
School, and Clinical and Research Fellow at the Massachusetts General Hospital, Boston. The work reported in this paper was
supported in part by NINCDS Fellowship NS05917-01 and presented at a meeting of the New Branch of The Orton Society in October
1978. 相似文献
20.
Richard P. Bagozzi 《Structural equation modeling》2013,20(3):222-252
This study explores the impact of arousal on key relations in attitude theory. Specifically, arousal was hypothesized and found to (a) increase the association between positive cognitions about the consequences of an act and attitudes toward the act and (b) decrease the association between negative cognitions and attitudes, thereby producing positive‐negative asymmetries. No positive‐negative asymmetries were predicted and found, however, for the association between positive or negative affective reactions toward the consequences of the act and attitudes. Finally, arousal was hypothesized and also found to induce a unitization in general affective and cognitive evaluations. High arousal and low arousal were manipulated through the controlled viewing of slides in a fully randomized, two‐group design with measurement error taken into account and electrodermal activity monitored to demonstrate changes in arousal. Subjects were 220 male students who provided judgments, evaluations, and attitudes toward the act of giving blood. Knowledge‐assembly theory and the semantic network theory of memory were used to frame hypotheses that, in turn, are based on a cognitive social learning theory of the self‐regulation of one's emotional states. 相似文献