Previous studies suggest cardiovascular pathologists are less accurate than noncardiovascular pathologists (e.g., clinical pathologists) in estimating the degree of coronary artery stenosis. To further investigate the effect of training on accurate estimation of coronary artery stenosis, we designed a study to compare the accuracy of estimates made by forensic pathologists versus medical students. Six forensic pathologists and twelve medical students each independently examined 24 images of coronary artery cross sections and gave an estimate of the degree of stenosis. When comparing all 24 images, the forensic pathologists had a median difference between the estimated percentage of stenosis and actual percentage of stenosis of −12.380 and the medical students had a median difference of −16.50 (p-value of 0.08542). In estimating the percentage of stenosis, training in forensic pathology does not guarantee significantly improved accuracy compared with medical students. Our study showed no consistent statistically significant difference between estimates given by forensic pathologists and by medical students. 相似文献
The Journal of Technology Transfer - University technology transfer is often associated with formal transmission of science-based inventions, for instance through the licensing of patented... 相似文献
There is broad agreement that neighborhood contexts are important for adolescent development, but there is less consensus about their association with adolescent smoking and alcohol use. Few studies have examined associations between neighborhood socioeconomic contexts and smoking and alcohol use while also accounting for differences in family and peer risk factors for substance use. Data drawn from the Seattle Social Development Project (N?=?808), a gender-balanced (female?=?49%), multiethnic, theory-driven longitudinal study originating in Seattle, WA, were used to estimate trajectories of smoking and alcohol use from 5th to 9th grade. Time-varying measures of neighborhood socioeconomic, family, and peer factors were associated with smoking and alcohol use at each wave after accounting for average growth in smoking and alcohol use over time and demographic differences. Results indicated that living in more socioeconomically disadvantaged neighborhoods, lower family income, lower family general functioning, more permissive family smoking environments, and affiliation with deviant peers were independently associated with increased smoking. Lower family functioning, more permissive family alcohol use environments, and deviant peers were independently associated with increased alcohol use. The effect of neighborhood disadvantage on smoking was mediated by family income and deviant peers while the effect of neighborhood disadvantage on alcohol use was mediated by deviant peers alone. Family functioning and family substance use did not mediate associations between neighborhood disadvantage and smoking or alcohol use. The results highlight the importance of neighborhood, family, and peer factors in early adolescent smoking and alcohol use. Future studies should examine the unique association of neighborhood disadvantage with adolescent smoking net of family socioeconomics, functioning, and substance use, as well as peer affiliations. Better understanding of the role of contextual factors in early adolescent smoking and alcohol use can help bolster efforts to prevent both short and long harms from substance use. 相似文献
The study has two main purposes. First, the study explores core ethical values and behaviors from the perspective of Thai public service organizational leaders. Second, the study investigates the extent to which public sector leaders in Thailand consider Buddhist-based mindfulness practice to be a potentially effective mechanism for reinforcing core ethical values and behaviors in the public sector in Thailand. Using interview data derived from in-depth semi-structured interviews with 12 senior public sector officials in Thailand, the analysis elicits four dimensions of core ethical values and behaviors that are perceived by Thai public service organizational leaders as central to ethical behavior in the public sector. The study also sheds light on the interviewees' positive perceptions towards mindfulness and the role its associated practices can play in promoting ethical decision making and behavior in the public sector in Thailand. 相似文献
Concerns over the unethical conduct of leaders and public officials have led to the renaissance of interest in public service ethics and values. Although national and organizational systems and structures have been instituted to either eradicate or ameliorate unethical behaviours in the public service of countries, the practice still persists with devastating consequences. As one way forward, spirituality has been touted as having the potential of stimulating the moral thoughts of individuals who are dealing with ethical issues, thereby reducing unethical behaviour and generating positive organizational behaviour. Drawing from the perspectives of developing and transitional countries, this special issue empirically examines the extent to which ethics, values and spirituality can reduce unethical behaviours. 相似文献
This paper examines how the means through which social benefits are delivered—either through a direct government program, or through a tax expenditure program—affects how citizens view social welfare programs and their beneficiaries. Attitudes toward social spending in the United States are strongly conditioned by both racial considerations and perceptions of the deservingness of recipients. We argue that the political cues given by spending conducted through the tax code differ from those given by direct spending in a way that both de-racializes spending attitudes and changes the lens through which citizens evaluate the deservingness of beneficiaries. Through a series of survey experiments, we demonstrate that social benefits delivered through the tax code are less likely to activate racialized thinking than similar or identical benefits delivered directly. This is true, at least in part, because recipients of tax expenditures are perceived as more deserving than recipients of otherwise identical direct spending.
This article uses social media network analysis (SMNA) to examine whether there was an astroturfing campaign on Twitter in support of the Adani Carmichael coal mine in 2017. It shows that SMNA can be used to visualize and analyze outsider lobbying activity in issue arenas and is capable of identifying networks of fake opinion. This study found that in April 2017, there was a small network of accounts that made a series of suspiciously similar pro‐Adani tweets that could be considered a form of duplicitous lobbying. However, this study concludes that these posts were likely a weak influence on public opinion in Australia and largely ineffectual as a lobbying tactic. Nevertheless, this analysis shows how communitas public interests can be subverted by covert social media campaigns used in support of corporatas goals, as well as the role digital research methods can play in protecting the integrity on public debates by exposing disingenuous actors. 相似文献
In an effort to increase both adolescents’ engagement with school and academic achievement, school districts across the United
States have created small high schools. However, despite the widespread adoption of size reduction reforms, relatively little
is known about the relationship between size, engagement and outcomes in high school. In response, this article employs a
composite measure of engagement that combines organizational, sociological, and psychological theories. We use this composite
measure with the most recent nationally-representative dataset of tenth graders, Educational Longitudinal Study: 2002, (N = 10,946, 46% female) to better assess a generalizable relationship among school engagement, mathematics achievement and
school size with specific focus on cohort size. Findings confirm these measures to be highly related to student engagement.
Furthermore, results derived from multilevel regression analysis indicate that, as with school size, moderately sized cohorts
or grade-level groups provide the greatest engagement advantage for all students and that there are potentially harmful changes
when cohorts grow beyond 400 students. However, it is important to note that each group size affects different students differently,
eliminating the ability to prescribe an ideal cohort or school size. 相似文献
Intentional self regulation describes how people make choices, plan actions to reach their goals, and regulate the execution
of their actions, making processes of intentional self regulation central to healthy human functioning. Prior research has
confirmed the presence of three processes of intentional self regulation—elective selection (ES), optimization (O), and compensation
(C)—in middle adolescence (Grades 8 through 10) and concurrent and predictive relationships with measures of Positive Youth
Development (PYD). A fourth process, loss-based selection (LBS), should also develop by the end of middle adolescence. The
present study used data from the 4-H Study of PYD to confirm the presence of a four-scale structure of intentional self regulation
(ES, O, C, and LBS) in a sample of 2,357 racially diverse Grade 10 youth (63% female) and examine its covariation with indicators
of positive and problematic development. Results supported the identification of a four-part structure of intentional self
regulation, and scores covaried positively with indicators of PYD and negatively with substance use, delinquency, and depressive
symptoms. Implications of the findings for the understanding of self-regulatory actions in adolescence and for future research
are discussed. 相似文献