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11.
Urbanization threatens biodiversity, yet the number and scope of studies on urban arthropod biodiversity are relatively limited. We sampled ant communities in three urban habitats (forest remnants, community gardens, vacant lots) in Detroit and Toledo, USA, to compare species richness, abundance, and species composition. We measured 24 site characteristics to examine relationships between richness and composition and habitat patch size, vegetation, and urban features. Ant richness was higher in forests (26) than in gardens (14) and intermediate in vacant lots (20). Ant richness in gardens and vacant lots negatively correlated with abundance of an exotic ant species (Tetramorium caespitum); thus this ant may affect native ant richness in urban habitats. Ant composition differed with habitat type, and abundance was lowest in forests. Site characteristics varied with habitat type: forests were larger, had more woody plants, higher woody plant richness, more branches, and leaf litter whereas lots and gardens had more concrete and buildings. Vacant lots had taller herbaceous vegetation, and gardens had higher forb richness, density, and more bare ground. Differences in vegetation did not correlate with ant richness, but several vegetation factors (e.g. patch size, number and size of trees, leaf litter, and amount of concrete and buildings) correlated with differences in ant species composition. Additional factors relating to soil, nests, or microclimatic factors may also be important for urban ant communities. Implications for biodiversity conservation in urban ecosystems are discussed.  相似文献   
12.
The aim of the study was to examine sex differences in self‐reported psychological distress, behavioural and emotional problems, and substance use in young people living in out‐of‐home care (OoHC). One hundred seventy‐six young people aged 12–17 years (females 53.4%) in OoHC in metropolitan Melbourne, Australia, were interviewed. Participants completed self‐report measures: Kessler Psychological Distress Scale, Strengths and Difficulties Questionnaire, and the World Health Organization Alcohol, Smoking, and Substance Involvement Screening Test—Youth Version. Girls had more OoHC placement instability over the past year compared with boys (p = .019). Compared with boys, the girls had significantly higher levels of distress (p < .001) (p = .007), were more likely to have self‐reported emotional symptoms (p < .001) and peer relationship problems (p = .043) and were more likely to use sedatives (p = .004). Girls had more psychological distress, behavioural disturbance, and sedative abuse; placement instability might contribute to these problems. Greater integration across OoHC, mental health, and substance use sectors is required. Girls in OoHC may benefit from interventions targeting problems with peer relationship and substance use and supporting prosocial behaviour; such targets may reduce distress and emotional symptoms and possibly prevent longer term problems.  相似文献   
13.
Population and Environment - Of growing research and policy interest are the experiences of people living under conditions of climate change–induced environmental stress, which either are...  相似文献   
14.
Returning the disabled worker to maximum productivity is a shared responsibility between the treating health practitioners and employers, with the insurer as an overseer of the injury management plan. Allied health professionals have responded to the need for standardized tools to assess work capacity by developing Functional Capacity Evaluations (FCEs). Literature exists outlining the limitations of FCEs in injury management systems; however, little is known about their uses and perceived usefulness. Questionnaires were posted to managers and therapists of accredited rehabilitation providers. The questionnaires consisted of both open and closed format questions. The response rate for the managers' questionnaire was 53%, while the therapists' questionnaire was 27%. The majority of rehabilitation providers use an assessment of their Own Design. Eight commercial FCEs were identified as being used. The majority of therapists use only one type of FCE. Therapists rated FCEs highly on their flexibility with Own Design assessment rated as significantly more flexible than the most frequently used commercial FCEs. From the data collected, it appears that cost is the main factor influencing choice of assessment. Level of evidence supporting capabilities of particular assessments does not appear to influence use. It seems that, despite there being poor research evidence to support the use of many brands of FCEs, they are still commonly used by rehabilitation providers. To achieve optimal use of FCEs, further research is required on the types of adaptations therapists make to commercial assessments and properties of Own Design assessments, including reliability and validity studies.  相似文献   
15.
The observed wage gap between men and women is widely attributed to discrimination in the workplace. Yet within the context of the standard neoclassical framework, discrimination is neither a necessary nor sufficient condition. This paper presents a modified neoclassical model which supports equilibrium wage differentials and which has testable implications. The paper also surmounts a difficulty that has plagued many earlier assessments–separating prejudice from other explanations of the wage gap. By directing attention away from wages to other implied effects of discrimination, our model offers cleaner tests of the impact of prejudice in labor markets. Results of such tests are reported.  相似文献   
16.
Sex-related distress is integral to the diagnosis of hypoactive sexual desire disorder (HSDD). This article describes the results of three prospective, non-treatment validation studies (two North American and one European), each testing over 200 participants with HSDD, other types of female sexual dysfunction (FSD), or no FSD in which the 12-item Female Sexual Distress Scale© (FSDS©), the 13-item FSDS–Revised©(FSDS–R©), and a single question asked using a daily electronic diary (the eDiary For HSDD Trials©; eDiary) were used to measure sex-related distress. FSDS results with 30- and seven-day recall were equivalent. The results observed with FSDS–R Item 13 (a single question assessing concern due to low sexual desire) were comparable to the FSDS. Mean eDiary monthly distress scores were closer to the minimum possible score (equivalent to “a little bit” of distress) and were about twice as variable as FSDS or FSDS–R Item 13 scores in participants with HSDD. All three measures confirmed that there is more distress in women with HSDD compared to women with no sexual dysfunction at all time points, demonstrating discriminant validity.  相似文献   
17.
Urban green spaces, such as forest fragments, vacant lots, and community gardens, are increasingly highlighted as biodiversity refuges and are of growing interest to conservation. At the same time, the burgeoning urban garden movement partially seeks to ameliorate problems of food security. Arthropods link these two issues (conservation and food security) given their abundance, diversity, and role as providers of ecosystem services like pollination and pest control. Many previous studies of urban arthropods focused on a single taxon (e.g. order or family), and examined either local habitat drivers or effects of landscape characteristics. In contrast, we examined both local and landscape drivers of community patterns, and examined differences in abundance, richness, and trophic structure of arthropod communities in urban forest fragments, vacant lots, and community gardens. We sampled ground-foraging arthropods, collected data on 24 local habitat features (e.g., vegetation, ground cover, concrete), and examined land-cover types within 2 km of 12 study sites in Toledo, Ohio. We found that abundance and richness of urban arthropods differed by habitat type and that richness of ants and spiders, in particular, varied among lots, gardens, and forests. Several local and landscape factors correlated with changes in abundance, richness, and trophic composition of arthropods, and different factors were important for specific arthropod groups. Overwhelmingly, local factors were the predominant (80 % of interactions) driver of arthropods in this urban environment. These results indicate that park managers and gardeners alike may be able to manage forests and gardens to promote biodiversity of desired organisms and potentially improve ecosystem services within the urban landscape.  相似文献   
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Important scientific, ethical and sociological debates are emerging over the trans-humanist goal to achieve therapeutic treatments to ‘cure’ the debilitation of age-related illness and extend the healthy life span of individuals through “interventive biogerontological research”. The scientific and moral discourses surrounding this contentious scientific field are mapped out, followed by a normative argument favouring ‘strong’ deliberative democratic control of human life extension research. This proposal incorporates insights from constructive and participatory technology assessment, upstream public engagement and back-casting analysis; to outline a programme of participatory approaches to encourage two-way dialogue between scientific and citizen perspectives, and foster the long-term deliberative democratic governance of this developing field.  相似文献   
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