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891.
Livestock production has been confronted with several epidemics over the last decades. The morality of common animal disease
strategies—stamping out and vaccination—is being debated and provokes controversies among farmers, authorities and the broader
public. Given the complexity and controversy of choosing an appropriate control strategy, this article explores the potential
of nano-enabled diagnostics in future livestock production. At first glance, these applications offer promising opportunities
for better animal disease surveillance. By significantly shortening the reaction time from diagnosis to appropriate control,
they could complement the current disease management strategies. Although nano-enabled diagnostics will not make livestock
disease eradication strategies redundant or completely free of the culling of infected animals, these diagnostics could significantly
reduce the number of culled animals and animal suffering. This article aims to demonstrate that the ethical assessment of
advanced diagnostics can build on the experiences with decision making in biomedical ethics where nonmaleficence, beneficence,
autonomy and justice serve as important benchmarks. Nano-enabled diagnostics may be an ethically sound solution if it can
resolve the dilemma between stamping out and vaccination in favor of the latter and if it can balance the autonomy–paternalism
dilemma between farmers and authorities. The technology should allow to be switched on and off by farmers, whilst simultaneously
allowing for a weak paternalism on behalf of authorities in order to benefit the farmer and broader society and to protect
them from harm.
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892.
893.
Daniel Frings Ian P. Albery Kimberly Rolph Anna Leczfalvy Stefan Smaczny Antony C. Moss 《Journal of applied social psychology》2017,47(3):148-157
An experiment tested the effects of dyad membership and the prospect of completing a motor‐skills task on alcohol placebo consumption and task confidence. Participants (n = 115) completed a taste preference task while alone or in dyads. Half the individuals and half the dyads expected to subsequently complete a motor‐skills task and rated task confidence pre and post‐consumption. Individuals expecting the task consumed less than those in the non‐task condition and felt less confident in their abilities post‐consumption. Among those expecting the task, dyad members' consumption did not reduce and their post‐consumption confidence was higher than individuals'. Findings suggest dyad membership can lead to overconfidence. Attempts to reduce alcohol related harms must balance the protective properties of dyads with risks of overconfidence. 相似文献
894.
Five experiments are reported related to control of arm movement in the sagittal and transverse planes when making paced and unpaced movements. A single group of 12 participants and the same equipment were used in the main experiments to allow comparisons across conditions. As well as the 2 different directions of movement, there were movements that were time-constrained (as in the W. D. A. Beggs &; C. I. Howarth, 1971, 1972a,b paradigm) and movements that were constrained by the ending tolerance (as in Fitts' paradigm). Results showed that, for movement times as high as 900 ms, the Schmidt and Beggs and Howarth models appeared to describe the time for movements that had time constraint. Fitts' law (P. M. Fitts, 1954; P. M. Fitts &; J. R. Peterson, 1964) applied to movements that were constrained by final accuracy. These results were independent of whether the target was in the aiming or stopping movement direction. A new interpretation of data for movements with time constraint is presented, based on the possible number of accuracy submovements available when near the target. This model suggests that the standard deviation of hits at the target is not dependent on the time spent in reaching the target region, but largely on the time remaining in order to produce final accuracy at the target. 相似文献
895.
Nicolas Guéguen Angélique Martin Jordy Stefan 《European journal of social psychology》2017,47(5):539-552
Research has shown that exposure to the national flag alters people's behavior and political and intergroup judgments. In several field studies conducted in an area of France with a strong regional identity, we examined the effect of the presence of the regional flag versus the national flag versus no flag on behaviors. Various situations (e.g., money solicitation, implicit helping behavior, food tasting) were tested in Brittany, on the French west Atlantic coast. Car drivers, passersby in the street, and patrons in bakeries were exposed to no flag versus the French flag versus the Brittany flag held by requesters or presented on a product or on a car. Findings showed that the regional flag increased helping behavior dramatically. Other studies also revealed that the presence of the Brittany flag reduced aggressiveness and influenced preference for food products. The power of a flag as a symbol that could increase in‐group membership is discussed. 相似文献
896.
Ample research demonstrated that empathizing with someone in need promotes helping that person. Two studies examined whether this effect of empathy on helping behavior holds across different emotional reactions expressed by a target in need. Results of Study 1 indicate that perspective taking with a sad needy target increased empathic concern which, in turn, fostered helping the individual. This relation was not found for participants taking the perspective of angry or disgusted needy targets. Study 2 provides further support for the underlying mechanism of the results of Study 1. Perspective taking with a sad needy target increased empathizers’ empathic concern because perception of target neediness was increased. Again, this pattern was not found for perspective taking with an angry needy target. The findings correspond to theorizing on the role of emotions in person perception. Hence, the current research provides insights regarding the boundary conditions of the empathy-helping association. 相似文献
897.
Alcohol Intoxication and Metamemory: Little Evidence that Moderate Intoxication Impairs Metacognitive Monitoring Processes
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Jacqueline R. Evans Nadja Schreiber Compo Rolando N. Carol Bennett L. Schwartz Howard Holness Stefan Rose Kenneth G. Furton 《Applied cognitive psychology》2017,31(6):573-585
There is minimal research on metacognition in alcohol‐intoxicated participants. Study 1 examined metacognition across sober, intoxicated, and placebo groups, with the intoxicated group's breath alcohol concentration reaching 0.074 g/210 L on average immediately prior to the metacognition task. Participants answered cued recall general knowledge questions and provided confidence ratings and feeling‐of‐knowing judgments. They then completed a recognition (i.e., multiple choice) version of the same task, indicating an answer and a confidence rating for each question. Findings suggest that metacognitive accuracy generally did not vary across intoxication levels, although the control group's retrospective confidence judgments better discriminated between accurate and inaccurate responses than the alcohol groups in the recognition task. Study 2 surveyed academic psychologists about their expectations regarding the relation between alcohol and metacognition. Study 1's results were counter to their expectations, as respondents generally predicted a relation would be present. We discuss the implications for alcohol and memory.Copyright © 2017 John Wiley & Sons, Ltd. 相似文献
898.
Prospective memory performance can be enhanced by task importance, for example by promising a reward. Typically, this comes at costs in the ongoing task. However, previous research has suggested that social importance (e.g., providing a social motive) can enhance prospective memory performance without additional monitoring costs in activity-based and time-based tasks. The aim of the present study was to investigate the influence of social importance in an event-based task. We compared four conditions: social importance, promising a reward, both social importance and promising a reward, and standard prospective memory instructions (control condition). The results showed enhanced prospective memory performance for all importance conditions compared to the control condition. Although ongoing task performance was slowed in all conditions with a prospective memory task when compared to a baseline condition with no prospective memory task, additional costs occurred only when both the social importance and reward were present simultaneously. Alone, neither social importance nor promising a reward produced an additional slowing when compared to the cost in the standard (control) condition. Thus, social importance and reward can enhance event-based prospective memory at no additional cost. 相似文献
899.
Maren Stropahl Sebastian Schellhardt Stefan Debener 《Psychonomic bulletin & review》2017,24(3):863-872
The concurrent presentation of different auditory and visual syllables may result in the perception of a third syllable, reflecting an illusory fusion of visual and auditory information. This well-known McGurk effect is frequently used for the study of audio-visual integration. Recently, it was shown that the McGurk effect is strongly stimulus-dependent, which complicates comparisons across perceivers and inferences across studies. To overcome this limitation, we developed the freely available Oldenburg audio-visual speech stimuli (OLAVS), consisting of 8 different talkers and 12 different syllable combinations. The quality of the OLAVS set was evaluated with 24 normal-hearing subjects. All 96 stimuli were characterized based on their stimulus disparity, which was obtained from a probabilistic model (cf. Magnotti & Beauchamp, 2015). Moreover, the McGurk effect was studied in eight adult cochlear implant (CI) users. By applying the individual, stimulus-independent parameters of the probabilistic model, the predicted effect of stronger audio-visual integration in CI users could be confirmed, demonstrating the validity of the new stimulus material. 相似文献
900.
Stefan Schröder 《Journal of Contemporary Religion》2017,32(1):33-49
This article provides a comparison of the New Atheism with German organized Humanism in terms of agendas and strategies. It draws on British and American as well as German discourses on the New Atheism and fieldwork on the Giordano Bruno Foundation (Giordano Bruno Stiftung) and the German Humanist Association (Humanistischer Verband Deutschlands). With reference to Johannes Quack’s nonreligion approach, contextual differences are highlighted in order to explain heterogeneities between the New Atheism and organized Humanism in Germany. However, further differences between the two organizations show that context is not everything. The article concludes by raising the question of how these differences should be interpreted: in contrast to the widespread opinion that organized nonreligion is constituted of small competing splinter groups, it suggests that we may observe the development of an international or even transnational movement, which is heckling its religious opponents from different directions. 相似文献