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排序方式: 共有137条查询结果,搜索用时 15 毫秒
91.
Tricia Z. King Eileen B. Fennell Lorna Williams James Algina Stephen Boggs Bruce Crosson 《Child neuropsychology》2013,19(2):76-88
Several critical neuroanatomical structures and pathways for memory performance are located in the third ventricle region. This led us to predict that verbal memory abilities would be more impaired in children treated for third ventricle tumors compared to those treated for cerebellar tumors. Archival data was obtained from 24 pediatric patients with third ventricle region tumors and 18 pediatric patients with cerebellar tumors. Neuroradiological verifications of tumor involvement and hydrocephalus severity (i.e., Evans Index) on preoperative scans and MRIs proximal to the time of the neuropsychological evaluation were conducted. The potential confounds of hydrocephalus severity, seizure medication, age, radiation treatment, and chemotherapy were addressed. Verbal IQ was comparable between tumor groups and in the Average range. The third ventricle region group performed significantly worse on list learning and delayed list recall compared to the cerebellar group. Their mean performance was in the clinically impaired range on both trials. The third ventricle region tumor group performed better than the cerebellar tumor group on Digit Span, a basic repetition, attention span task. These findings support the hypothesis that pediatric patients with third ventricle region brain tumors are more likely to be impaired on verbal recall tasks compared to pediatric patients with cerebellar brain tumors. In contrast, patients who were treated for cerebellar tumors were more impaired on the basic repetition, attention span task compared to patients who were treated for third ventricle tumors. Future studies should examine the specific neuroanatomical structures and pathways that are damaged and may influence differential cognitive impairments in children. 相似文献
92.
It has been found that laminate composites of longitudinally magnetized magnetostrictive and transversely poled piezoelectric layers (an L–T laminate composite) have a giant magnetoelectric (ME) effect. Relatively high ME coupling, that is significant exchange between magnetization and polarization, is demonstrated. 相似文献
93.
94.
Keiji Tanaka † 《Philosophical Magazine Letters》2013,93(9):601-606
Photo-induced phenomena in glasses excited by two-photon absorption have been studied and compared with those produced by bandgap illumination. The two-photon excitation of As2S3 gives a refractive-index increase, unaccompanied by photodarkening. Raman-scattering spectra show that the excitation increases the density of ‘wrong’ bonds. These observations are discussed and compared with photo-induced changes in SiO2. 相似文献
95.
Abstract Fluorescence transitions in LiNdP4O12: 4 F3/2→4I9/2 (0·90μm), 4F3/2→4I11/2 (1·05μm), 4F3/2→4I13/2 (1·32μm), 4F3/2→4I15/2 (1·77μm), and in LiErYP4O12: 4S3/2→4I11/2 (1·3μm), 4I13/2→4I15/2 (1·53μm), have been obtained at room temperature. The positions of the energy levels related to the excitation, nonradiative and radiative processes have been established from complementary absorption measurements. The fluorescence lifetimes of the above-mentioned transitions have been determined from single exponential decays. 相似文献
96.
97.
Different psychotherapeutic theories provide contradictory accounts of adult narcissism as the product of either parental coldness or excessive parental admiration during childhood. Yet, none of these theories has been tested systematically in a nonclinical sample. The authors compared four structural equation models predicting overt and covert narcissism among 120 United Kingdom adults. Both forms of narcissism were predicted by both recollections of parental coldness and recollections of excessive parental admiration. Moreover, a suppression relationship was detected between these predictors: The effects of each were stronger when modeled together than separately. These effects were found after controlling for working models of attachment; covert narcissism was predicted also by attachment anxiety. This combination of childhood experiences may help to explain the paradoxical combination of grandiosity and fragility in adult narcissism. 相似文献
98.
Attributes associated with concept representations, such as familiarity, typicality, and age of acquisition, have been shown
to be important influences on lexical-semantic processing. In most previous studies of healthy and pathological aging, these
attributes are not equated for younger and older adults separately on the stimuli used. In this study, normative data were
collected to test whether there exist any age differences in these attributes. The results demonstrate that the ratings given
by younger and older adults on natural and manmade category items correlated positively. However, age differences were also
apparent, whereby older adults provided higher ratings overall than younger adults. Suggestions and hypotheses are presented
to explain this pattern of age differences, which relate to how category concepts may be represented by healthy younger and
older adults. Also, the possible implications for these differential age ratings on lexical-semantic processing are discussed.
The age differences apparent in this study demonstrate the need to consider age-appropriate normative ratings in the selection
of stimuli for use in lexical-semantic processing studies of aging, and the normative data presented provide a means of equating
category stimuli. The complete list of all the means is available at www.psychonomic.org/archive. 相似文献
99.
Lorna Simon Robin Gaul Myrna L. Friedlander Laurie Heatherington 《Journal of counseling and development : JCD》1992,71(1):48-52
Researchers of this study questioned: Are clients (male or female) with self-reported “masculine” versus “feminine” role orientations viewed more favorably by counselors? Which is more predictive of the counselor's impressions: the client's gender or his or her sex role orientation? Results suggested that highly masculine and highly feminine clients (regardless of gender) are perceived as more socially skilled and likely to experience a positive therapeutic outcome. Gender did not uniquely predict counselors' impressions. Highly feminine women clients, however, were viewed as more socially skilled than were highly feminine men. On average, clients were viewed as friendly and submissive. 相似文献
100.
P. G. KLANDERMANS† 《Journal of Occupational & Organizational Psychology》1984,57(2):107-120
The mobilization of trade union members to participate in the activities of their union is a complex process of persuading and activating. Curiously, the literature on union participation has paid little attention to this process. In this paper an expectancy-value theory of willingness to participate in action is presented. Central to this theory is the assumption that the willingness to participate in an activity or action of a trade union is a function of the perceived costs and benefits for participants of involvement in that activity or action. In the light of this theory two kinds of mobilization are distinguished: consensus mobilization and action mobilization. The theory was applied in studying three mobilization campaigns of a Dutch trade union: (a) a campaign concerning an imminent conflict about a planned reorganization, and (b) two campaigns over the annual negotiations for a collective labour agreement. This paper describes the developed theory and uses results from the three studies to test and illustrate it. 相似文献