Conductance oscillations through an aharonov-bohm ring with a quantum gate     

SHI Yao ming CHEN Hang de XU Shi yue 《上海大学学报(英文版)》1999,3(3):203-207

１　Ｉｎｔｒｏｄｕｃｔｉｏｎ　Ｑｕａｎｔｕｍｃｏｈｅｒｅｎｔｔｒａｎｓｐｏｒｔｉｎｍｅｓｏｓｃｏｐｉｃｓｙｓｔｅｍｈａｓｂｅｅｎｉｎｖｅｓｔｉｇａｔｅｄｅｘｔｅｎｓｉｖｅｌｙｉｎｔｈｅｐａｓｔｄｅｃａｄｅ．Ｍｏｔｉｖａｔｅｄｂｙｓｏｍｅｒｅｃｅｎｔｅｘｐｅｒｉｍｅｎｔｓ,ｍａｄｅｂｙＹａｃｏｂｙｅｔａｌ．［１］ａｎｄＢｕｋｓｅｔａｌ．［２］,ｐｈａｓｅｓｅｎｓｉｔｉｖｅｔｒａｎｓｐｒｏｔｉｎａｎＡｈａｒｏｎｏｖｂｏｈｍ（ＡＢ）ｒｉｎｇｗｉｔｈａｑｕａｎｔｕｍｄｏｔ（ＱＤ）ｅｍｂｅｄｄｅｄ…  相似文献   

我国独立R&D机构的管理现状和发展趋势--对独立R＆D机构研究与发展管理初步研究     

甘伟兵  S. J. de Boer  单国刚 《科研管理》1999,20(5)

二十年来改革开放和社会主义市场经济建设对我国研究与发展(R＆D)管理产生了重大影响,使R＆D管理发生了深刻变化.本文将讨论我国R＆D管理的状况,并对一个综合研究设计院(BSRI)进行个案研究,以确定R＆D管理面临的主要问题,最后,对今后我国R＆D管理发展趋势进行了初步探讨.  相似文献   

我的另类留学生活     

广州苦咖啡 《高中生》2006,(21)

大学是人生非常重要的一个阶段,也是一个承上启下的阶段。进入大学以后,我们要努力的不仅仅是读书而已,更重要的是对自身各方面能力的培养。要想真正成为一个现代化的人才,思维能力、实践能力、创新能力、竞争能力等都是不可或缺的。国外的大学就非常重视对学生能力的培养,他们提倡全面的素质教育,实行个性化的教学方式,将能力培养贯穿在每一个学习环节中。  相似文献   

What do we know about deaf clients after thirteen years of ambulatory mental health care? An analysis of the PsyDon database, 1987-1999     

de Bruin E  de Graaf R 《American annals of the deaf》2004,149(5):384-393

Little is known about demographic, deafness-related, and diagnostic characteristics of deaf and partially hearing people with psychosocial or psychiatric problems. A study was conducted derived from data from intake assessment interviews of people with hearing loss treated at a Dutch ambulatory mental health center for the deaf between 1987 and 1999. Both sexes were equally represented. People who were postlingually deaf, hard of hearing, below age 22 years, or above age 65 years were less likely to ask for help than other groups in the study. Men presented more psychiatric disorders, and women more psychosocial problems, especially partially hearing women. The authors recommend stronger emphasis on mental health care for postlingually deaf people, severely hard of hearing people, adolescents, and retirement-age people. They also recommend development of skills for rational and emotional self-expression in the education and rearing of children with hearing loss.  相似文献   

Rapid automatic naming: Easy to measure,hard to improve (quickly)     

de Jong PF  Vrielink LO 《Annals of dyslexia》2004,54(1):65-88

One explanation for the relationship between serial rapid naming (SRN) and reading is that SRN affects the temporal proximity of the phonological activation of the letters in a word, which, in turn, influences the acquisition of orthographic knowledge. To test this hypothesis, a group of Dutch first grade children was trained in the rapid serial naming of letter sounds. In addition, a no-training control group and a serial addition training group were included. Various measures of SRN and of reading were administered to evaluate the effect of the training. Before the training, we found a symbol-specific relationship between SRN and reading: the relationship of reading with letter-sound naming was higher than its relationship with number naming. The training of serial letter-sound naming was not successful. In contrast, the serial addition training was highly effective. We conclude that it might be difficult to quickly improve the serial rapid naming of letter sounds in beginning readers.  相似文献   

Evaluations, attributions, affect, and disciplinary choices in mothers at high and low risk for child physical abuse     

Montes MP  de Paúl J  Milner JS 《Child abuse & neglect》2001,25(8):1015-1036

OBJECTIVE: The present study investigated several components of a social information-processing model of child physical abuse. The main objective was to examine the extent to which high-risk, relative to low-risk, mothers differed in their evaluations, attributions, negative affect, and disciplinary choices for children's behavior, and to explore whether these differences may be expressed in interactions between risk status and mitigating information. METHOD: Nineteen high- and 19 matched low-risk mothers' evaluations of children transgressions, attributions, affect, and choices of disciplinary techniques were examined using six vignettes depicting a child engaging in moral, conventional, and personal transgressions. One-half of the vignettes contained mitigating information and one-half did not. High- and low-risk mothers were chosen based on their potential for physical child abuse. A three-factor (2 x 3 x 2) design was used to assess the dependent variables. RESULTS: As expected, high-risk, relative to low-risk, mothers reported more hostile intent, stable and global attributions, aversiveness, annoyance, and use of power-assertion discipline. A risk group by type of transgression interaction was found for evaluation and indifference and a risk group by mitigating information interaction was found for evaluation of wrongness, internal attributions, and aversiveness. A risk by type of transgression by mitigating information interaction was found for global/specific attributions, aversiveness, and indifference toward child transgressions. CONCLUSIONS: Results support a social information processing model of child physical abuse, which suggests that high-risk, compared to low-risk, mothers process child-related information differently and use more power-assertive disciplinary techniques.  相似文献   

Detection of child abuse by Dutch preventive child-healthcare doctors and nurses: has it changed?     

Reijneveld SA  de Meer G  Wiefferink CH  Crone MR 《Child abuse & neglect》2008,32(9):831-837

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Quality perinatal nursing education through coteaching     

Dumas L  de Montigny F 《The Journal of perinatal education》1999,8(4):27-35

Collaboration in teaching can take different forms, including the model of coteaching. This educational strategy requires time, effort, commitment, and collaboration between partners in order to ensure an enhanced teaching and learning experience. Little has been written recently on the theory of coteaching. The literature does not address the subject of coteaching or team teaching from a combined theoretical and clinical perspective. Two professors in nursing sciences present their experience in coteaching over a 4-year period, covering a theoretical course and a clinical practicum at the basic baccalaureate level, as well as the supervision of clinical preceptors for this same practicum. They describe the conceptual, personal, and environmental conditions that enabled them to use this particular form of teaching at this point in their careers. They discuss how the concept works as well as the advantages and disadvantages from the perspective of professors, students, and preceptors. Recommendations are made for implementing such a strategy while minimizing the risks for the program, the teachers, the students, and the educational milieux. Their discussion may provide insight for programs that prepare childbirth educators.  相似文献   

萝卜硫烷对脑线粒体的影响:机理观点和未来发展方向     

Fernanda Rafaela JARDIM  Fhelipe Jolner Souza de ALMEIDA  Matheus Dargesso LUCKACHAKI  Marcos Roberto de OLIVEIRA 《Journal of Zhejiang University. Science. B》2020,21(4):263-279

有机硫化物萝卜硫烷(SFN)是一种有效的细胞保护剂,在体外和体内实验模型中均可促进抗氧化、抗炎、抗糖化和抗菌作用。因为氧化磷酸化系统的存在,所以线粒体是三磷酸腺苷(ATP)的主要产生部位。同时,线粒体也是具核人体细胞中产生活性氧的主要场所。线粒体损伤在多种人类疾病中起着重要作用,包括神经退行性病变和代谢异常。本文描述和讨论了SFN调节哺乳动物细胞中线粒体功能和动力学的作用和机理,以及其对肿瘤细胞中线粒体促凋亡途径的促进作用。SFN对线粒体的调节作用使得它在一定程度上被认为是一种细胞保护剂。本文还指出了几个需要通过进一步实验解决的问题,即未来的可能研究方向,这可能会对该领域的研究人员具有指导作用。  相似文献   

Developing Flexible Dual Master＇s Degree Programs at UPAEP （Universidad Popular Autonoma del Estado de Puebla） and OSU （Oklahoma State University）     

Mafia G. Fabregas-Janeiro  Pablo Nuno de la Parra 《美中教育评论》2012,(2):223-228

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