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William S. Maki 《Learning & behavior》1975,3(4):312-316
In a study of sustained attention (“vigilance”), pigeons performed a conditional discrimination in a 3-key operant chamber. Pecking a white center key initiated a 0.2- or 2.0-sec cue (a red or green disk). The side keys then displayed white disks, and a peck on the right or left key was reinforced depending on whether the preceding cue was red or green. Pecks on the white center key initiated the cue according to one of two schedules of cue production (FR 1 or VI 7.5 sec). Control of side key choices by 0.2-sec cues was disturbed by transition from FR 1 to VI 7.5, and recovered after the schedule of cue production changed from VI 7.5 back to FR 1. Control of choices by 2.0-sec cues was not affected by changing schedules of cue production. Rates of pecking the cue were higher than rates of cue-producing responses. 相似文献
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This study aims to compare representations of Japanese personal and corporate name authority data in Japan, South Korea, China (including Hong Kong and Taiwan), and the Library of Congress (LC) in order to identify differences and to bring to light issues affecting name authority data sharing projects, such as the Virtual International Authority File (VIAF). For this purpose, actual data, manuals, formats, and case reports of organizations as research objects were collected. Supplemental e-mail and face-to-face interviews were also conducted. Subsequently, five check points considered to be important in creating Japanese name authority data were set, and the data of each organization were compared from these five perspectives. Before the comparison, an overview of authority control in Chinese, Japanese, Korean-speaking (CJK) countries was also provided. The findings of the study are as follows: (1) the databases of China and South Korea have mixed headings in Kanji and other Chinese characters; (2) few organizations display the correspondence between Kanji and their yomi; (3) romanization is not mandatory in some organizations and is different among organizations; (4) some organizations adopt representations in their local language; and (5) some names in hiragana are not linked with their local forms and might elude a search. 相似文献
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A new set of standards to guide professional development in assessment among student affairs professionals and faculty members is poised to revolutionize how educators learn to conduct this essential work. 相似文献
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Tohru Murakami Yuki Tajika Hitoshi Ueno Sachiko Awata Satoshi Hirasawa Maki Sugimoto Yoshihiko Kominato Yoshito Tsushima Keigo Endo Hiroshi Yorifuji 《Anatomical sciences education》2014,7(6):438-449
It is essential for medical students to learn and comprehend human anatomy in three dimensions (3D). With this in mind, a new system was designed in order to integrate anatomical dissections with diagnostic computed tomography (CT) radiology. Cadavers were scanned by CT scanners, and students then consulted the postmortem CT images during cadaver dissection to gain a better understanding of 3D human anatomy and diagnostic radiology. Students used handheld digital imaging and communications in medicine viewers at the bench‐side (OsiriX on iPod touch or iPad), which enabled “pixel‐to‐tissue” direct comparisons of CT images and cadavers. Students had lectures and workshops on diagnostic radiology, and they completed study assignments where they discussed findings in the anatomy laboratory compared with CT radiology findings. This teaching method for gross and radiological anatomy was used beginning in 2009, and it yielded strongly positive student perspectives and significant improvements in radiology skills in later clinical courses. Anat Sci Educ 7: 438–449. © 2014 American Association of Anatomists. 相似文献
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The purpose of this study was to build a flexible mechanical system with a hydrostatic skeleton. The main components of this system are two type flexible bags. One is a structural bag with constant inner pressure. The other is an actuator bag with controlled inner pressure. To design the system, it was necessary to estimate both structural deformation and driving force. Nu- merical analysis of flexible bags, however, is difficult because of large nonlinear deformation. This study analyzed structural strength and driving force of flexible bags with the nonlinear finite element analysis （FEA） software ABAQUS. The stress con- centration dependency on the bag shape is described and the driving force is calculated to include the large deformation. From the analytical results, this study derives an empirical equation of driving force. The validity of the equation was confirmed by condition-changed analyses and experimental results. 相似文献
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Treatments that interfere with animals’ short-term retention (e.g., in delayed matching-to-sample) were studied using a spatial memory task. Rats performed in an eight-arm radial maze in which choosing each arm without repetition was the optimal behavior. Performances were interrupted between fourth and fifth choices for a delay of 15 sec to 2 min. A variety of events occurring during the delay interval did not disrupt memories for prior choices (as assessed by the accuracy of postdelay choices). The ineffective treatments included variations in visual and auditory environments, removal from the maze, food consumed during the delay, a distinctive odor added to the maze, or combinations of these manipulations. Additionally, performance on another spatial task (a four-arm maze) during the delay between Choices 4 and 5 did not interfere with performance in the eight-arm maze. These findings suggest that rats’ memories for spatial locations are immune to retroactive interference, at least within the range of conditions reported, and that the rat can successfully segregate memories for spatial locations established in different contexts. 相似文献
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Maki Kimura 《British Journal of Sociology of Education》2014,35(4):523-540
Universities in the United Kingdom have experienced a transformation in the context of the government’s initiatives to widen participation and rapid socio-economic changes locally and globally. With more diverse students entering higher education, universities need to consider how they can create an inclusive environment. Indeed, in order to stress their openness and (international) excellence, many universities proclaim their ‘commitment’ to diversity and difference. However, as Sara Ahmed suggests, institutional speech acts, such as a claim to promote equality and diversity, do not go beyond pluralist understandings of diversity and are non-performative. Through the examination of policies and practices concerning issues of equality and diversity in English universities, this article, firstly, considers whether universities are successful in promoting equality amongst different (ethnic) groups. Then, through a case study of a university, it examines how students become raced, classed, gendered, or nationed subjects, while they struggle to form their own agency. 相似文献
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Shannon M. Maki Melanie Booth-Butterfield Audra McMullen 《Communication quarterly》2013,61(5):649-664
In this article, researchers explain how individuals' similarities in humor orientation influence dyadic cohesion and satisfaction. The researchers in this study investigated the impact of communication appropriateness as a mediating variable in relationships. Relational partners (n = 151 dyads) completed measures of both self and other regarding humor orientation, cohesion, and satisfaction. A couple's humor orientation was positively correlated with both dyadic satisfaction and cohesion. Communication appropriateness was a mediating factor in both the relationship between a couple's humor orientation and dyadic cohesion, and humor orientation and satisfaction. The overall dyadic humor orientation was more important than a couple's humor discrepancy, or either partner's scores. 相似文献
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Kristin G. Maki 《Communication Research Reports》2018,35(1):12-21
Prior research links social support with several positive health outcomes. However, less is known about the association between social support and Type 2 diabetes risk factors, such as glycemic control. This study uses a nationally representative sample from the National Longitudinal Study of Adolescent to Adult Health (Add Health) to examine the relationship between social support and glycated hemoglobin A1c (HbA1c) levels. The data were analyzed through hierarchical logistic regression. Results indicate an inverse relationship between elevated HbA1c levels and individuals’ satisfaction with their partners’ daily interactions. Implications include the possibility of reducing Type 2 diabetes risk through communication interventions highlighting the importance of maintaining positive daily interactions. 相似文献