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排序方式: 共有620条查询结果,搜索用时 31 毫秒
611.
This article examines the narratives, imaginaries, and subjectivities that underpin the far-right, ethnic nationalist “defense leagues” that have emerged in Australia (and across Europe) in the past decade. Referencing three, interrelated nationalist events in Australia—the Cronulla Riots, Cronulla Memorial Day, and the “race-riot” that occurred in Melbourne on January 5, 2019—I argue that defense leagues resist conceptualization through existing theories of nationalism and community, including those articulated by Anderson, Hage, and Esposito. Drawing on Lacanian psychoanalytic theory, I argue that unlike other nationalists, defense nationalists are not primarily concerned with realizing their avowed political projects (such as fortifying national borders, halting immigration, and preserving so-called national values). Instead, they are focused on constructing and enjoying themselves as the privileged national subjects who get to do the nation's defending. As I elaborate, the enjoyment they derive from defending the nation—which is approximate to the Lacanian concept of jouissance—means that paradoxically, that which threatens the nation legitimizes and fortifies the nationalist, because the more the nation is threatened, the more the nationalist's perceived role within it is secured. Ultimately, I argue this jouissance salvages a symbolic life within the nation that is always-already dead.  相似文献   
612.
Science and Engineering Ethics - Wearable robots and exoskeletons are relatively new technologies designed for assisting and augmenting human motor functions. Due to their different possible design...  相似文献   
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614.
All suicides and related prior attempts occurring in Northern Ireland over two years were analyzed, focusing on number and timing of attempts, method, and mental health diagnoses. Cases were derived from coroner's records, with 90% subsequently linked to associated general practice records. Of those included, 45% recorded at least one prior attempt (with 59% switching from less to more lethal methods between attempt and suicide). Compared with those recording one attempt, those with 2+  attempts were more likely to have used less lethal methods at the suicide (OR = 2.77: 95% CI = 1.06, 7.23); and those using less lethal methods at the attempts were more likely to persist with these into the suicide (OR = 3.21: 0.79, 13.07). Finally, those with preexisting mental problems were more likely to use less lethal methods in the suicide: severe mental illness (OR = 7.88: 1.58, 39.43); common mental problems (OR = 3.68: 0.83, 16.30); and alcohol/drugs related (OR = 2.02: 0.41, 9.95). This analysis uses readily available data to highlight the persisting use of less lethal methods by visible and vulnerable attempters who eventually complete their suicide. Further analysis of such conditions could allow more effective prevention strategies to be developed.  相似文献   
615.
Abstract

To reveal how the CNS copes with load uncertainty in catching, electromyography (EMG) was recorded in 15 females and 14 males while catching visually identical balls of known and unknown weights under varied (1–10?s) and constant (1?s) foreperiods (warning time). EMG integrals, which represented total muscle activity, were computed for three time intervals prior to the catch (anticipatory), and one interval after (compensatory). Load uncertainty caused the CNS to utilize an anticipatory strategy in several muscles, primarily during the ball-flight interval, characterized by preparation to catch balls of unknown weight by utilizing an average of 99.7% of the muscle activation used to catch the heaviest ball under the known weight condition. The constant 1?s foreperiod, which permitted precise temporal anticipation of ball release, did not influence the anticipatory strategy adopted by the CNS to cope with load uncertainty. There were no observed differences in the neuromotor control used by men and women to manage load uncertainty in catching, although there was an interesting difference in the way men and women employed the triceps to prepare to catch balls of a known weight.  相似文献   
616.
Since visible persistence of grating patterns increases with spatial frequency, it is often inferred that the perceived duration of a grating is also longer at higher spatial frequencies. However, other work has demonstrated that the perceived onset of a grating is also delayed at higher spatial frequencies. Thus it is impossible to infer the subjective duration from the results of visible persistence studies alone. In order to estimate perceived duration in the present study, reaction times (RTs) to grating onsets and offsets were measured for a range of spatial frequencies. The results indicate that although the perceived duration (ie the difference between offset and onset RTs) was consistently longer than the physical duration, the estimates of perceived duration did not vary with changes in spatial frequency. Differences between the present results and earlier findings are interpreted in the context of the different methods used to measure perceived offset.  相似文献   
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618.
Youth suicide attempters presenting to the emergency department (ED) are frequently admitted to psychiatric inpatient hospitals, yet little is known about how clinicians decide which youths to admit versus discharge to outpatient care. We examine predictors of inpatient hospitalization and describe service use outcomes associated with hospitalization in 181 youths drawn from consecutive ED admissions for suicidality. Predictors of hospitalization include ED site, suicide plan, and parent report of problems. Hospitalization was associated with improved linkage to outpatient treatment and more intensive service use. Future research is needed to understand the best service delivery and treatments for these high‐risk youth.  相似文献   
619.
Extended pausing during discriminable transitions from rich-to-lean conditions can be viewed as escape (i.e., rich-to-lean transitions function aversively). Thus, an anxiolytic drug would be predicted to mitigate the aversiveness and decrease pausing. In the current experiment, pigeons' key pecking was maintained by a multiple fixed-ratio fixed-ratio schedule of rich (i.e., larger) or lean (i.e., smaller) reinforcers. Intermediate doses (3.0-10.0 mg/kg) of chlordiazepoxide differentially decreased median pauses during rich-to-lean transitions. Relatively small decreases in pauses occurred during lean-to-lean and rich-to-rich transitions. Effects of chlordiazepoxide on pausing occurred without appreciable effects on run rates. These findings suggest that signaled rich-to-lean transitions function aversively.  相似文献   
620.
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