269 research outputs found

    Age-Related Increases in Verbal Knowledge Are Not Associated With Word Finding Problems in the Cam-CAN Cohort: What You Know Won't Hurt You.

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    Objective: We tested the claim that age-related increases in knowledge interfere with word retrieval, leading to word finding failures. We did this by relating a measure of crystallized intelligence to tip-of-the-tongue (TOT) states and picture naming accuracy. Method: Participants were from a large (N = 708), cross-sectional (aged 18-88 years), population-based sample from the Cambridge Centre for Ageing and Neuroscience cohort (Cam-CAN; www.cam-can.com). They completed (a) the Spot-the-Word Test (STW), a measure of crystallized intelligence in which participants circled the real word in word/nonword pairs, (b) a TOT-inducing task, and (c) a picture naming task. Results: Age and STW independently predicted TOTs, with higher TOTs for older adults and for participants with lower STW scores. Tests of a moderator model examining interactions between STW and age indicated that STW was a significant negative predictor of TOTs in younger adults, but with increasing age, the effect size gradually approached zero. Results using picture naming accuracy replicated these findings. Discussion: These results do not support the hypothesis that lifelong knowledge acquisition leads to interference that causes an age-related increase in TOTs. Instead, crystallized intelligence supports successful word retrieval, although this relationship weakens across adulthood

    Thoracostomy Tube Placement: Resident Experience and Confidence at a Large Academic Medical Center

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    The goal of this study was to investigate TT placement patterns and resident confidence at one academic medical center. In addition, our second objective was to gather quantitative data on the frequency and context of TT placement, rates of complications, and factors associated with complications among residents at TJUH

    From theorising radicalisation to surveillance practices:Muslims in the cross hairs of scrutiny

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    This research was funded by the Leverhulme Trust and the Scottish Institute of Policing Research.There are several psychological analyses of the processes of radicalisation resulting in terrorism. However, we know little about how those in authority (e.g., the police) conceptualise the psychological dynamics to radicalisation. Accordingly, we present a detailed account of an official UK counter-terrorism intervention, the Workshop to Raise Awareness of Prevent, designed to enlist front-line professionals in identifying and referring those at risk of radicalisation. Specifically, we report data gathered during an observation of this intervention delivered by the police in Scotland. This provides insight into the psychological model of radicalisation being disseminated in the UK and we evaluate the merits of this model in the light of current psychological theory. First, we consider how this model may overlook certain social dynamics relevant to understanding radicalisation. Second, we discuss how this neglect limits consideration of how the surveillance warranted by the official model may lead Muslims to disengage from majority group members. Our analysis points to how political psychology’s analysis of social identities and citizenship can inform public policy and practice.PostprintPeer reviewe

    Early implementation of the US Forest Service's shared stewardship strategy in the Eastern United States

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    38 pagesIn 2018, in response to Congress’ calls for a renewed approach to forest management, the U.S. Forest Service (USFS) announced the Shared Stewardship Strategy - an initiative aimed at increasing the pace and scale of cross-boundary forest management activities (USFS, 2018). In 2019, our team started conducting independent research through semi-structured interviews on the implementation and development of Shared Stewardship efforts in the western U.S. (Phase 1, detailed in Kooistra et al., 2021b). In late 2020, we began investigating states east of the Rocky Mountains (Phase 2), which we refer to herein for ease as “eastern” or “Phase 2” states, although our study included states as far west as Nebraska. This Executive Summary provides an overview of our key findings across Phase 2 states (also see Table A) and our observations on the future of Shared Stewardship.This study was made possible with funding from the USDA Forest Service State and Private Forestry and Rocky Mountain Research Station

    In-situ coating of silicon-rich films on tokamak plasma-facing components with real-time Si material injection

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    Experiments have been conducted in the DIII-D tokamak to explore the in-situ growth of silicon-rich layers as a potential technique for real-time replenishment of surface coatings on plasma-facing components (PFCs) during steady-state long-pulse reactor operation. Silicon (Si) pellets of 1 mm diameter were injected into low- and high-confinement (L-mode and H-mode) plasma discharges with densities ranging from 3.97.5×10193.9-7.5\times10^{19} m3^{-3} and input powers ranging from 5.5-9 MW. The small Si pellets were delivered with the impurity granule injector (IGI) at frequencies ranging from 4-16 Hz corresponding to mass flow rates of 5-19 mg/s (14.2×10201-4.2\times10^{20} Si/s) at cumulative amounts of up to 34 mg of Si per five-second discharge. Graphite samples were exposed to the scrape-off layer and private flux region plasmas through the divertor material evaluation system (DiMES) to evaluate the Si deposition on the divertor targets. The Si II emission at the sample correlates with silicon injection and suggests net surface Si-deposition in measurable amounts. Post-mortem analysis showed Si-rich coatings of varying morphology mainly containing silicon oxides, with SiO2_2 being the dominant component. No evidence of SiC was found, which is attributed to low divertor surface temperatures. The Si-rich coating growth rates were found to be at least 0.40.70.4-0.7 nm/s, and the erosion rate was 0.10.30.1-0.3 nm/s. The technique is estimated to coat a surface area of at least 0.94 m2^2 on the outer divertor. These results demonstrate the potential of using real-time material injection to grow silicon-rich layers on divertor PFCs during reactor operation

    Writing in Britain and Ireland, c. 400 to c. 800

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    No abstract available

    The Multiple In-group Identity Framework

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    The effects of team identification on sport consumer behaviour are well established. Recent research, however, has moved beyond this perspective to examine how groups within and beyond the team identity influence consumption. Assimilating previous research findings, we advance a Multiple In-group Identity Framework (MIIF), which consists of three levels: (1) superordinate (e.g., team identity), (2) subgroup (e.g., specific stadium area), and (3) relational group (e.g., friends or family). In the MIIF, we conceptualise the complex array of groups to which a consumer may belong within a superordinate identity. Each level includes groups with varying degrees of inclusiveness, homogeneity, and interpersonal attachment to other consumers between members. Individuals seek out sub and relational group membership because solely identifying at the superordinate level may not provide optimal distinctiveness or sufficient interpersonal attachment to other consumers. This provides self-concept benefits that nourish and operate in complement with the superordinate identification. The extent that different in-group identities influence behaviour relates to their importance in a consumer's self-concept and relevance to context. We provide implications for theory and practice

    Taking a Feminist Disability Studies Approach to Fundamental British Values: Do “Fundamental” “British” Values Encourage the Appreciation of Marginalized Identity Groups, or Lead to the Performance of Inclusion?

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    In this article, Fundamental British Values (FBV) are understood as a token attempt toward societal inclusion and empowerment of all citizens. Rather than providing meaningful routes for all individuals to be included in British citizenship, FBV are built on foundations of “inclusionism” — the inclusion of marginalized identity groups in society, on the premise that existing social structures are not threatened. Disabled women’s responses to sociocultural stereotypes surrounding disability and gender are interpreted through a feminist disability studies lens. Empirical data, gathered within a larger research project which examined disabled women’s responses to the representation of disabled women in Anglo-American advertising, are drawn on and connections are made between the growing trend of promoting diversity in advertising, and superficial approaches to diversity and empowerment of all citizens, enacted in FBV. Two key themes underpin this critical discussion: participant resistance to “pity” narratives surrounding the portrayal of disabled women in advertising and disabled women’s navigation of “belonging” in exclusionary environments

    Effects of Wolves on Elk and Cattle Behaviors: Implications for Livestock Production and Wolf Conservation

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    BACKGROUND: In many areas, livestock are grazed within wolf (Canis lupus) range. Predation and harassment of livestock by wolves creates conflict and is a significant challenge for wolf conservation. Wild prey, such as elk (Cervus elaphus), perform anti-predator behaviors. Artificial selection of cattle (Bos taurus) might have resulted in attenuation or absence of anti-predator responses, or in erratic and inconsistent responses. Regardless, such responses might have implications on stress and fitness. METHODOLOGY/PRINCIPAL FINDINGS: We compared elk and cattle anti-predator responses to wolves in southwest Alberta, Canada within home ranges and livestock pastures, respectively. We deployed satellite- and GPS-telemetry collars on wolves, elk, and cattle (n = 16, 10 and 78, respectively) and measured seven prey response variables during periods of wolf presence and absence (speed, path sinuosity, time spent head-up, distance to neighboring animals, terrain ruggedness, slope and distance to forest). During independent periods of wolf presence (n = 72), individual elk increased path sinuosity (Z = -2.720, P = 0.007) and used more rugged terrain (Z = -2.856, P = 0.004) and steeper slopes (Z = -3.065, P = 0.002). For cattle, individual as well as group behavioral analyses were feasible and these indicated increased path sinuosity (Z = -2.720, P = 0.007) and decreased distance to neighbors (Z = -2.551, P = 0.011). In addition, cattle groups showed a number of behavioral changes concomitant to wolf visits, with variable direction in changes. CONCLUSIONS/SIGNIFICANCE: Our results suggest both elk and cattle modify their behavior in relation to wolf presence, with potential energetic costs. Our study does not allow evaluating the efficacy of anti-predator behaviors, but indicates that artificial selection did not result in their absence in cattle. The costs of wolf predation on livestock are often compensated considering just the market value of the animal killed. However, society might consider refunding some additional costs (e.g., weight loss and reduced reproduction) that might be associated with the changes in cattle behaviors that we documented

    Re-Arrest Among Juvenile Justice-Involved Youth: An Examination Of The Static And Dynamic Risk Factors

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    The purpose of this study is to investigate the static and dynamic risk factors for re-arrest among detained youth by examining gender, race/ethnicity, age, special education and mental health variables (i.e., anger/irritability, depression/anxiety, somatic complaints, suicide ideation, thought disturbances, and traumatic experiences). The demographic profiles of detained youth with one admit were also compared with those with multiple admits to the juvenile detention center. With regards to static risk factors, older, white, and special education were significantly at risk of re-arrest. Concerning dynamic risk factors, only anger/irritability predicted re-arrest. Practice implications are also discussed
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