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A shock scrambler using photoelectric conductors which operate relays is described. The scrambler has advantages of low cost and reliable operation. 相似文献
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A. M. Levi 《Applied cognitive psychology》1998,12(3):265-275
Can the traditional lineup procedure be modified in such a way as to still secure positive identifications of guilty persons while minimizing the risk of misidentifications? Witnesses interacted with a ‘culprit’ who they were later called upon to identify from a 20-person sequential video lineup. Both culprit-present and culprit-absent lineups were employed and witnesses could choose more than one suspect. In 61 culprit-present lineups 43% chose only the suspect, while in 93 culprit-absent lineups no-one did. In culprit-present lineups 25% chose him along with foils, while 5% did so in culprit-absent lineups. Larger lineup size, and the ability to make multiple choices, helped lower the probability of choosing only an innocent suspect. Using Baysian analysis, the probability that a chosen defendant was innocent, based on the lineup alone, equalled 0.03, compared to 0.258 in traditional lineups. © 1998 John Wiley & Sons, Ltd. 相似文献
25.
Levi Checketts 《Theology & Science》2017,15(1):116-127
This paper explores the relationship between Christianity and new technologies. I contend that the “Christ and Culture” model of H. Richard Niebuhr, while influential for many authors, is inadequate to grasp the real relationship. Authors who follow this framework tend to overlook the reality of the situation due to in-built biases. Actor-Network Theory, which attends carefully to intricate networks of relations, is a better lens through which to understand this relation. This allows us to see that Christianity interplays with new technologies, sometimes shaping them and sometimes being shaped by them. 相似文献
26.
Ofir Levi 《Psychoanalytic Social Work》2017,24(1):54-74
Hope and language are part of the human development process starting from birth and continuing through all the stages of development. They are tools that help us to cope in complex situations. Environmental failure produces trauma, which damages the “self” and impairs the development of hope and language. The individual experiences “pessimistic hope” and “drained hope” and begins using “concrete language” and “pseudo-language.” Such profiles and languages indicate functional difficulties, including the inability to establish mature intimate personal relationships. When traumatic events such as those experienced in military combat compound childhood trauma (environmental failure), mental and functional difficulties buried by our defense systems may rise to the surface and worsen and chronic complex trauma may ensue. Psychotherapy for chronic complex trauma is complex. The therapeutic approach that is used in the “hope phenomenon” model includes five therapy stages that allow us to examine the effect of a trauma on personality and function. Here we examine the link between the five stages of therapy and the use of language. According to my experience, patients use concrete language and pseudo-language in the beginning of the therapeutic connection. As this connection and therapist-patient alliance evolves and deepens and the client and therapist move through the various stages, the patient then starts to use “plural language.” Concrete language and pseudo-language are used in the pessimistic hope and drawn hope stages, respectively, until a profile characterized by a realistic and mature hope emerges. This profile goes hand in hand with an ability to use plural language. This article examines the development of hope and language in a complex posttraumatic stress disorder (PTSD) patient who was treated using the hope phenomenon model. Consent for the therapy details to be used in this article was given by the patient. 相似文献
27.
Crowding, the inability to recognize objects in clutter, sets a fundamental limit on conscious visual perception and object recognition throughout most of the visual field. Despite how widespread and essential it is to object recognition, reading and visually guided action, a solid operational definition of what crowding is has only recently become clear. The goal of this review is to provide a broad-based synthesis of the most recent findings in this area, to define what crowding is and is not, and to set the stage for future work that will extend our understanding of crowding well beyond low-level vision. Here we define six diagnostic criteria for what counts as crowding, and further describe factors that both escape and break crowding. All of these lead to the conclusion that crowding occurs at multiple stages in the visual hierarchy. 相似文献
28.
Poor handwriting is a diagnostic criterion for developmental coordination disorder. Typical of poor handwriting is its low overall quality and the high variability of the spatial characteristics of the letters, usually assessed with a subjective handwriting scale. Recently, Dynamic Time Warping (DTW), a technique originally developed for speech recognition, was introduced for pattern recognition in handwriting. The present study evaluates its application to analyze poor handwriting. Forty children attending Dutch mainstream primary schools were recruited and based on their scores on the Concise Evaluation Scale for Children's Handwriting (Dutch abbreviation: BHK), 20 good and 20 poor writers (of whom 13 were scheduled for handwriting intervention) were identified. The groups were matched for age (7-9 years), school grade (grades 2 and 3) and handedness. The children subsequently wrote sequences of the letter "a" on a graphics tablet in three conditions (normal, fast, and accurate). Classical kinematics were obtained and for each individual letter DTW was used to calculate the distance from the mean shape. The DTW data revealed much higher variability in the letter forms of the poor writers that was independent of the kinematic results of larger trajectories, faster movements, and higher pen pressure. The current results suggest that DTW is a valid and objective technique for letter-form analysis in handwriting and may hence be useful to evaluate the rehabilitation treatments of children suffering from poor handwriting. In education research it may be exploited to explore how children (should) learn to write. 相似文献
29.
Social psychologists have given considerable theoretical and research attention to whether motivational variables bias the attributions people make for behavior. Some theorists maintain that motivational constructs must be invoked to explain certain attributional phenomena; other theorists maintain that information-processing variables can adequately explain these phenomena. The present article critically examines existing cognitive and motivational approaches to attribution and analyzes the assumptions underlying the cognition-motivation debate. We argue that cognitive and motivational theories are currently empirically indistinguishable. In particular, its is possible to construct information-processing explanations for virtually all evidence for motivated bias. We conclude by examining the implications of this indeterminacy of cognitive and motivational explanations. Future research in the area can most profitably be addressed to improving the specificity of cognitive and motivational theories rather than to resolving the between-theory confrontation. 相似文献
30.
Helm Stierlin M.D. Ph.D L. David Levi M.D. Robert J. Savard Ph.D. 《Family process》1971,10(4):411-427
Newer models of familial interaction emphasize the importance of parental perceptions of the child as determinants for his self-image and interpersonal functioning. This paper examines this issue in detail as it bears on the developmental phase of separation and individuation in adolescence. 相似文献