Knowledge,tracking, a bell here and a whistle there: Response to Ramachandran

Ramachandran (2015) has offered a new tracking analysis of knowledge which avoids the main difficulties afflicting the original tracking analyses of Dretske (1971) and Nozick (1981). This paper examines various problem cases for the analysis. We show that modifications can be made to handle most of the cases. But even when the bells and whistles we suggest are in place, counterexamples remain.

The first section describes Ramachandran's analysis and its many advantages. The next section shows that, as stated, the analysans fails to be necessary. The third section raises a problem for one of the analysis's two sufficiency conditions, while the fourth raises a problem for the other sufficiency condition. The fifth section draws conclusions.     

Class and Ethnicity in the Global Market for Organs: The Case of Korean Cinema

While organ transplantation has been established in the medical imagination since the 1960s, this technology is currently undergoing a popular re-imagination in the era of global capitalism. As transplantation procedures have become routine in medical centers in non-Western and developing nations and as organ sales and transplant tourism become increasingly common, organs that function as a material resource increasingly derive from subaltern bodies. This essay explores this development as represented in Korean filmmaker Park Chan-wook's 2002 Sympathy for Mr. Vengeance, focusing on the ethnic and class characteristics of the global market in organs and possible modes of counter-logic to transplant technologies and related ethical discourses.     

How does perfectionism affect academic achievement? Examining the mediating role of accurate self-assessment

Perfectionism, a multidimensional disposition encompassing both positive and negative attributes, has been widely examined in a number of different fields, one of which is academics. However, results of research on the precise connection between perfectionism and academic success remain largely inconclusive. The present study, therefore, attempted to identify this underlying mechanism by examining the mediating role of accurate self-assessment in the relationship between perfectionism and academic achievement of college students. The results revealed that while perfectionistic concerns and strivings did not directly affect academic achievement, their indirect effects were statistically significant. Perfectionistic concerns negatively predicted academic achievement through inaccurate self-assessment, whereas perfectionistic strivings positively predicted academic achievement through accurate self-assessment. These findings are expected to promote a practical and balanced understanding of academic perfectionism by explaining the relationship between the sub-dimensions of perfectionism and academic achievement.     

Artistic beauty and religious sublimity in literature: a Levinasian reproach of estheticism in light of Kant’s third Critique

International Journal for Philosophy of Religion - Emmanuel Levinas’s doubts about the ethical value of artistic beauty have been widely acknowledged by the vast majority of Levinas’s...     

Self-concept clarity’s role in meaning in life among American college students: A latent growth approach

Meaning in life (MIL) is a fundamental building block of well-being, and MIL theory heavily emphasizes the importance of using self-knowledge to identify what makes life meaningful and to select suitable purposes to pursue in life. However, few studies have investigated this important theoretical point. The purpose of the present study was to investigate individual growth trajectories of self-knowledge, measured with a construct of self-concept clarity (SCC), and MIL. This study also examined whether the change of SCC predicts the change pattern of MIL using cross-domain latent growth analyses, controlling for the level of perceived stress. A longitudinal data-set with seventh measurement points was gathered from a total of 285 college students at a large Midwest university in the US during the period of 8 weeks. On average, a student’s levels of MIL and SCC tend to show a small amount of linear increase during the first semester of college, with individual differences in patterns of change. From a change perspective, SCC significantly predicted the sense of MIL, supporting the significance of having a clear self-view in perceiving life as more meaningful.     

Laboratory Safety and Nanotechnology Workers: an Analysis of Current Guidelines in the USA

Although some regulatory frameworks for the occupational health and safety of nanotechnology workers have been developed, worker safety and health issues in these laboratory environments have received less attention than many other areas of nanotechnology regulation. In addition, workers in nanotechnology labs are likely to face unknown risks and hazards because few of the guidelines and rules for worker safety are mandatory. In this article, we provide an overview of the current health and safety guidelines for nanotechnology laboratory workers by exploring guidelines from different organizations, including the Department of Energy Nanoscale Science Research Centers (DOE-NSRC), Massachusetts Institute of Technology (MIT), the National Institutes of Health (NIH), the National Institute for Occupational Safety and Health (NIOSH), the Occupational Safety and Health Administration (OSHA), Texas A&M University (TAMU), and University of Massachusetts-Lowell (UML). After discussing these current guidelines, we apply an ethical framework to each set of guidelines to explore any gaps that might exist in them. By conducting this gap analysis, we are able to highlight some of the weaknesses that might be important for future policy development in this area. We conclude by outlining how future guidelines might address some of these gaps, specifically the issue of workers’ participation in the process of establishing safety measures and the development and enforcement of more unified (and mandatory) guidelines.     

Toward an Understanding of (Em)Power(Ment) for HIV/AIDS Prevention with Adolescent Women

Adolescent females, particularly urban and low-income youth of color, are at particular risk for HIV infection. This article uses an empowerment perspective to consider the degree to which intrapersonal and interpersonal power dynamics in heterosexual relations have an impact on condom use among high-risk youth. Participants in this study were 333 African American and European American urban youth, ages 14–19 years, who were heterosexually active. Measures focused on interpersonal and intrapersonal factors thought to be associated with condom use. This model was most useful in predicting condom use among women and least useful in predicting condom use among male participants. Implications for empowerment theory and future research are discussed.     

Interplay between Attachment to Peers and Parents in Korean Adolescents’ Behavior Problems

The present study investigated the relative contribution of style of peer attachment (secure, anxious, avoidant) and quality of attachment to parents on behavior problems in Korean adolescents. In addition, we examined the role of paternal and maternal attachment separately as a potential moderator in the relationship between style of peer attachment and internalizing and externalizing behavior problems. Middle school students (245 males, 209 females) completed the Korean version of the Adolescent Friendship Attachment Scale, Inventory of Parental and Peer Attachment-Revised, and Youth Self-Report. Attachment to peers and parents as predictors of behavior problems were tested via hierarchical multiple regression analyses. Results revealed that anxious peer attachment remained the strongest predictor of behavior problems among adolescents (internalizing behavior problems β?=?.18, p?<?.01; externalizing behavior problems β?=?.21, p? <?.001), indicating the relative importance of peer relationship compared to attachment to parents. Paternal attachment significantly moderated the relationship between avoidant peer attachment and externalizing behavior problems (β?=?.15, p?<?.05), even when the main effect of avoidant peer attachment on externalizing behavior problems was not significant. Results highlight the role of both attachments to peers and parents on adolescents’ psychological adjustment.     

Morphological changes in dendritic spines of Purkinje cells associated with motor learning

Experience-dependent changes of spine structure and number may contribute to long-term memory storage. Although several studies demonstrated structural spine plasticity following associative learning, there is limited evidence associating motor learning with alteration of spine morphology. Here, we investigated this issue in the cerebellar Purkinje cells using high voltage electron microscopy (HVEM). Adult rats were trained in an obstacle course, demanding significant motor coordination to complete. Control animals either traversed an obstacle-free runway or remained sedentary. Quantitative analysis of spine morphology showed that the density and length of dendritic spines along the distal dendrites of Purkinje cells were significantly increased in the rats that learned complex motor skills compared to active or inactive controls. Classification of spines into shape categories indicated that the increased spine density and length after motor learning was mainly attributable to an increase in thin spines. These findings suggest that motor learning induces structural spine plasticity in the cerebellar Purkinje neurons, which may play a crucial role in acquiring complex motor skills.