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801.
Place learning is impaired when a single plus maze is moved between adjacent locations 33-120 cm apart. This maze translation creates distinct start locations but maintains a single goal location with respect to distal cues. Hippocampal cell recording data suggest the majority of place fields are tied to apparatus boundaries, not to distal cues, when an apparatus is moved these distances to the left or right. Thus, rats may fail to appreciate the existence of multiple start locations with respect to distal cues when the maze is moved in this way and their start location on the surface is constant. Performance on the single plus maze problem was improved when texture cues were correlated with different start locations. Place learning was supported when multiple start locations were provided on a single large surface (double plus maze), even though rats did not explore the entire surface. Place learning was also supported when random extensions were added to a double plus maze such that start locations, relative to surface boundaries, were not informative as to goal location. This outcome suggests sensitivity to multiple start locations is required for distal cue use in translational place problems.  相似文献   
802.
HomeNetToo is a longitudinal field study designed to examine the antecedents and consequences of home Internet use in low-income families. Participants included 140 children, mostly 13-year-old African American (83%) boys (58%), living in single-parent households (75%) where the median annual income was $15,000 (USD). This report focuses on children's Internet activities, socio-demographic characteristics related to their Internet activities, and the relationship between academic performance and Internet activities. Overall, findings indicate that low-income children initially use the Internet primarily for entertainment. As home Internet use loses its novelty children become more focused in their Internet activities, reducing the number of websites they visit and visiting more websites targeted to their specific interests. Pornography websites are popular initially, especially among boys, but their popularity decreases dramatically after 3 months. Age, race, and sex have little influence on which websites are most popular. Academic performance predicts subsequent Internet activities, and Internet activities predict subsequent academic performance. Directions for future research to identify mechanisms that mediate the relationship between Internet activities and academic performance and implications for the digital divide are discussed.  相似文献   
803.
804.
This paper explores a novel philosophy of ethical care in the face of burgeoning biomedical technologies. I respond to a serious challenge facing traditional bioethics with its roots in analytic philosophy. The hallmarks of these traditional approaches are reason and autonomy, founded on a belief in the liberal humanist subject. In recent years, however, there have been mounting challenges to this view of human subjectivity, emerging from poststructuralist critiques, such as Michel Foucault's, but increasingly also as a result of advances in biotechnology itself. In the face of these developments, I argue that the theoretical relevance and practical application of mainstream bioethics is increasingly under strain. Traditionalists will undoubtedly resist. Together, professional philosopher-bioethicists, public health policymakers, and the global commercial healthcare industry tend to respond conservatively by shoring up the liberal humanist subject as the foundation for medical ethics and consumer decision-making, appealing to the familiar tropes of reason, autonomy, and freedom.  相似文献   
805.
The attitudes of students toward technologies related to conception were assessed in 1984 and again in 1999. It was expected that increased routinization of such technologies over time would result in higher approval ratings in the second survey. This hypothesis was not supported by the results; there were no changes in approval for most methods that were included in both surveys, and in some cases, approval decreased. It was also hypothesized that methods included in the 1984 survey would receive higher approval than would newer technologies added in 1999, and this was supported by the data. Differences in approval of specific items were found by the gender and religion of respondents. Results suggest that methods involving donors continue to be unacceptable to most students, that the "older" methods are not becoming more acceptable, and that newer methods (gestational surrogacy, egg donation, and cloning) are even more problematic.  相似文献   
806.
807.
A subset of violent criminals fixates on deviant (and often grossly misogynistic) sexual fantasies, or engages in sexually sadistic behavior toward victims. Although the role of psychosexual deviancy is quite common among many notorious serial killers (e.g., Ted Bundy, Gary Ridgway, Dennis Rader), it appears to be a motivating factor for some recent mass killers as well. Evidence indicates that the killer’s psychosexual issues were a motivating factor for mass killers (e.g., George Sodini, Jared Lee Loughner, and Elliot Rodger) in their assault. This article will compare and contrast the role and influence of a deviant sexual/misogynistic fantasy formation process for mass and serial killers.  相似文献   
808.
In the last decade, an increasing number of cardiac conditions have been shown to have a genetic basis. Cardiovascular genetic counseling has emerged as a subspecialty aiming to identify unaffected at-risk individuals. An important sector of this at-risk population also includes expectant mothers, in whom unique clinical challenges may arise. Genetic counselors, especially those in cardiovascular and prenatal settings, have an opportunity to identify and assist women who may benefit from cardiovascular care during pregnancy. This paper provides basic management and genetic evaluation principles for affected women, as well as guidance on identifying those who are at risk. We provide considerations for cardiac surveillance in pregnancy and the post-partum period. Finally, key psychosocial issues that appraise how to best provide support to at risk women as they make informed decisions are discussed. We propose that a team approach including cardiology, maternal fetal medicine, and genetic counseling best serves this patient population. Ongoing questions addressing an evidence based approach to cardiovascular genetic conditions in pregnancy still remain. Thus, well-designed research protocols are essential to mark progress in this area.  相似文献   
809.
810.
Existing research demonstrates the potential value of arts-based interventions for survivors of abuse and other forms of trauma. The See the Triumph Healing Arts Workshops were designed to provide survivors of intimate partner violence and sexual assault with an opportunity to express themselves and connect with others through arts-based interventions. When appropriate, using the art developed through the workshops to create an art exhibit can be useful for raising awareness and giving voice to survivors in the local community. The preliminary results of the pilot evaluation suggest that the workshops were well-received and allowed participants to experience emotional expression, connection with others, and greater self-awareness.  相似文献   
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