161 research outputs found

    Filial obligations to elderly parents: a duty to care?

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    A continuing need for care for elderly, combined with looser family structures prompt the question what filial obligations are. Do adult children of elderly have a duty to care? Several theories of filial obligation are reviewed. The reciprocity argument is not sensitive to the parent–child relationship after childhood. A theory of friendship does not offer a correct parallel for the relationship between adult child and elderly parent. Arguments based on need or vulnerability run the risk of being unjust to those on whom a needs-based claim is laid. To compare filial obligations with promises makes too much of parents’ expectations, however reasonable they may be. The good of being in an unchosen relationship seems the best basis for filial obligations, with an according duty to maintain the relationship when possible. We suggest this relationship should be maintained even if one of the parties is no longer capable of consciously contributing to it. We argue that this entails a duty to care about one’s parents, not for one’s parents. This implies that care for the elderly is not in the first place a task for adult children

    Age adjustment in ecological studies: using a study on arsenic ingestion and bladder cancer as an example

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    <p>Abstract</p> <p>Background</p> <p>Despite its limitations, ecological study design is widely applied in epidemiology. In most cases, adjustment for age is necessary, but different methods may lead to different conclusions. To compare three methods of age adjustment, a study on the associations between arsenic in drinking water and incidence of bladder cancer in 243 townships in Taiwan was used as an example.</p> <p>Methods</p> <p>A total of 3068 cases of bladder cancer, including 2276 men and 792 women, were identified during a ten-year study period in the study townships. Three methods were applied to analyze the same data set on the ten-year study period. The first (Direct Method) applied direct standardization to obtain standardized incidence rate and then used it as the dependent variable in the regression analysis. The second (Indirect Method) applied indirect standardization to obtain standardized incidence ratio and then used it as the dependent variable in the regression analysis instead. The third (Variable Method) used proportions of residents in different age groups as a part of the independent variables in the multiple regression models.</p> <p>Results</p> <p>All three methods showed a statistically significant positive association between arsenic exposure above 0.64 mg/L and incidence of bladder cancer in men and women, but different results were observed for the other exposure categories. In addition, the risk estimates obtained by different methods for the same exposure category were all different.</p> <p>Conclusions</p> <p>Using an empirical example, the current study confirmed the argument made by other researchers previously that whereas the three different methods of age adjustment may lead to different conclusions, only the third approach can obtain unbiased estimates of the risks. The third method can also generate estimates of the risk associated with each age group, but the other two are unable to evaluate the effects of age directly.</p

    Deregulation of MUC4 in gastric adenocarcinoma: potential pathobiological implication in poorly differentiated non-signet ring cell type gastric cancer

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    MUC4 is a large, heavily glycosylated transmembrane mucin, that is implicated in the pathogenesis of various types of cancers. To date, no extensive study has been done to check the expression and functional significance of MUC4 in different types of gastric adenocarcinomas. Here, we report the expression profile of MUC4 in gastric adenocarcinomas and its function in poorly differentiated gastric non-signet ring cell carcinoma (non-SRCC) type cells. Immunohistochemical analysis using tissue microarray (TMA) showed a significant difference in MUC4 expression between normal adjacent (n=45) and gastric adenocarcinoma (n=83; P<0.001). MUC4 expression was not associated with tumour type, stage or with the degree of differentiation. To gain further insight into the significance of MUC4 expression in gastric non-SRCC cells, MUC4 was ectopically expressed in AGS, a poorly differentiated gastric non-signet ring cell line. The MUC4 overexpressing cells (AGS-MUC4) showed a significant increase (P<0.005) in cell motility and a decrease in cellular aggregation as compared with the vector-transfected cells. Furthermore, in vivo tumorigenicity analysis revealed that animals transplanted with the MUC4 overexpressing cells (AGS-MUC4) had a greater incidence of tumours (83%) in comparison to empty vector control (17%). In addition, the expression of MUC4 resulted in enhanced expression of total cellular ErbB2 and phosphorylated ErbB2. In conclusion, our results showed that MUC4 is overexpressed in gastric adenocarcinoma tissues, and that it has a role in promoting aggressive properties in poorly differentiated gastric non-SRCC cells through the activation of the ErbB2 oncoprotein

    Contrasting vertical and horizontal representations of affect in emotional visual search

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    The final publication is available at Springer via http://dx.doi.org/ 10.3758/s13423-015-0884-6Independent lines of evidence suggest that the representation of emotional evaluation recruits both vertical and horizontal spatial mappings. These two spatial mappings differ in their experiential origins and their productivity, and available data suggest that they differ in their saliency. Yet, no study has so far compared their relative strength in an attentional orienting reaction time task that affords the simultaneous manifestation of both of them. Here we investigated this question using a visual search task with emotional faces. We presented angry and happy face targets and neutral distracter faces in top, bottom, left, and right locations on the computer screen. Conceptual congruency effects were observed along the vertical dimension supporting the ‘up=good’ metaphor, but not along the horizontal dimension. This asymmetrical processing pattern was observed when faces were presented in a cropped (Experiment 1) and whole (Experiment 2) format. These findings suggest that the ‘up=good’ metaphor is more salient and readily activated than the ‘right=good’ metaphor, and that the former outcompetes the latter when the task context affords the simultaneous activation of both mappings

    Correlation between driving-related skill and alcohol use in young-adults from six European countries: the TEN-D by Night Project

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    <p>Abstract</p> <p>Background</p> <p>Only few studies with small experimental samples investigated the impact of psychoactive substances on driving performance. We conducted a multicenter international cross-sectional study to evaluate the correlation between alcohol use and driving-related skill as measured by brake reaction time (RT).</p> <p>Methods</p> <p>Before and after the entrance into randomly selected recreational sites from six European countries, all subjects aged 16-35 years, owning a driver license, were asked to compile a structured socio-demographic questionnaire and measure RT (SimuNomad3 driving simulator), breath alcohol concentration (BAC; Drager Alcoltest), and drug use (Oratect III saliva test, only at the exit). Mixed regression modeling was used to evaluate the independent association between RT and alcohol concentration or drug use.</p> <p>Results</p> <p>Before the entrance into the recreational site, 4534 subjects completed all assessments and composed the final sample. Their mean age was 23.1 ± 4.2y; 68.3% were males; 54.7% had BAC > 0 g/L (assumed alcoholics); 7.5% declared illegal drug assumption (mostly cannabis). After the exit, 3019 also completed the second assessment: 71.7% showed BAC > 0 g/L. Controlling for age, gender, educational level, occupation, driver license years, and drug use, BAC was positively associated with RT, achieving significance, however, only when BAC was higher than 0.49 g/L. Significant interaction terms were found between BAC and female gender or drug use, with highest RTs (> 1 sec.) recorded among drug users with BAC > = 1 g/L.</p> <p>Conclusions</p> <p>This field study confirms previous experimental data on the negative impact of alcohol use on driving-related skill, supporting regulations and educational campaigns aimed at discouraging driving after consumption of psychoactive substances.</p

    Adolescents at risk of self-harm in Ghana: a qualitative interview study exploring the views and experiences of key adult informants

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    Background In Ghana, rates of self-harm in young people are as high as they are in high income countries. Self-reported interpersonal, familial and societal stressors form the most important background, and self-harm is seen by young people as a way of responding to that stress. In the present study, we obtained the views of key adult informants about self-harm among adolescents in Ghana – what they thought as possible reasons for self-harm in young people and what actions might be needed at an individual or population level to respond to the problem. Methods We interviewed face-to-face 11 adults, using a semi-structured interview guide. We used an experiential thematic analysis technique to analyse the transcribed interviews. Results The analysis identified five themes: “underestimating the prevalence of self-harm in adolescents”, “life on the streets makes self-harm less likely”, “self-harm in adolescents is socially and psychologically understandable”, “ambivalence about responding to adolescent self-harm”, and “few immediate opportunities for self-harm prevention in Ghana”. Adolescent self-harm was acknowledged but its scale was underestimated. The participants offered explanations for adolescent self-harm in social and psychological terms that are recognisable from accounts in high income countries. Low rates among street-connected young people were explained by their overarching orientation for survival. Participants agreed that identification was important, but they expressed a sense of inadequacy in identifying and supporting adolescents at risk of self-harm. Again, the participants agreed that self-harm in adolescents should be prevented, but they recognised that relevant policies were not in place or if there were policies they were not implemented – mental health and self-harm were not high on public or political priorities. Conclusions The adults we interviewed about young people who self-harm see themselves as having a role in identifying adolescents at risk of self-harm and see the organisations in which they work as having a role in responding to individual young people in need. These are encouraging findings that point to at least one strand of a policy in Ghana for addressing the problem of self-harm in young people

    As Far as the Eye Can See: Relationship between Psychopathic Traits and Pupil Response to Affective Stimuli

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    Psychopathic individuals show a range of affective processing deficits, typically associated with the interpersonal/affective component of psychopathy. However, previous research has been inconsistent as to whether psychopathy, within both offender and community populations, is associated with deficient autonomic responses to the simple presentation of affective stimuli. Changes in pupil diameter occur in response to emotionally arousing stimuli and can be used as an objective indicator of physiological reactivity to emotion. This study used pupillometry to explore whether psychopathic traits within a community sample were associated with hypo-responsivity to the affective content of stimuli. Pupil activity was recorded for 102 adult (52 female) community participants in response to affective (both negative and positive affect) and affectively neutral stimuli, that included images of scenes, static facial expressions, dynamic facial expressions and sound-clips. Psychopathic traits were measured using the Triarchic Psychopathy Measure. Pupil diameter was larger in response to negative stimuli, but comparable pupil size was demonstrated across pleasant and neutral stimuli. A linear relationship between subjective arousal and pupil diameter was found in response to sound-clips, but was not evident in response to scenes. Contrary to predictions, psychopathy was unrelated to emotional modulation of pupil diameter across all stimuli. The findings were the same when participant gender was considered. This suggests that psychopathy within a community sample is not associated with autonomic hypo-responsivity to affective stimuli, and this effect is discussed in relation to later defensive/appetitive mobilisation deficits
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