The emotion disgust motivates costly behavioral strategies that mitigate against potentially larger costs associated with pathogens, sexual behavior, and moral transgressions. Because disgust thereby ...regulates exposure to harm, it is by definition a mechanism for calibrating decision making under risk. Understanding this illuminates two features of the demographic distribution of this emotion. First, this approach predicts and explains sex differences in disgust. Greater female disgust propensity is often reported and discussed in the literature, but, to date, conclusions have been based on informal comparisons across a small number of studies, while existing functionalist explanations are at best incomplete. We report the results of an extensive meta-analysis documenting this sex difference, arguing that key features of this pattern are best explained as one manifestation of a broad principle of the evolutionary biology of risk-taking: for a given potential benefit, males in an effectively polygynous mating system accept the risk of harm more willingly than do females. Second, viewing disgust as a mechanism for decision making under risk likewise predicts that individual differences in disgust propensity should correlate with individual differences in various forms of risky behavior, because situational and dispositional factors that influence valuation of opportunity and hazard are often correlated across multiple decision contexts. In two large-sample online studies, we find consistent associations between disgust and risk avoidance. We conclude that disgust and related emotions can be usefully examined through the theoretical lens of decision making under risk in light of human evolution.
This paper represents the first study to focus on quantifying racial/ethnic group differences in older adults' involvement with adult protective services (APS). Across 3 independent county programs, ...the rate of APS reports was about twice as high for Black older adults compared to White older adults. These differences were greater for clients who were older and male but remained similar across allegation type. The percent of reports validated was slightly but consistently lower for Black clients than for White clients, and a lower percentage of Black clients' cases were closed due to investigation or service refusal. Findings for Hispanic clients differed by county, so it was impossible to generalize about their APS experience. Researchers should distinguish racial/ethnic group differences that persist across multiple programs from those that are program-specific. Further studies with larger data sets are needed to guide APS practice and ensure equity for all clients served. .
This study uses data from consecutive England and Wales censuses to examine the intragenerational economic mobility of individuals with different ethnicities, religions and genders between 1971 and ...2011, over time and across cohorts. The findings suggest more downward and less upward mobility among Black Caribbean, Indian Sikh and Muslim people with Bangladeshi, Indian and Pakistani ethnicities, relative to white British groups, and more positive relative progress among Indian Hindu people, but also some variation in the experiences of social mobility between individuals even in the same ethnic groups. For some groups, those becoming adults or migrating to the UK since 1971 occupy an improved position compared with older or longer resident people, but this is not universal. Findings suggest that these persistent inequalities will only be effectively addressed with attention to the structural factors which disadvantage particular ethnic and religious groups, and the specific ways in which these affect women.
Attachment studies mostly follow the Western middle-class model in theory and methods. To demonstrate that the assessment of children's caregiving context is an often neglected, but crucial ...prerequisite for attachment studies, we (a) conducted a literature analysis of attachment research in non-Western contexts and (b) empirically investigated the caregiving arrangements and cultural concepts of attachment figures in three cultural groups in Costa Rica: rural Guanacaste, urban San José, and rural indigenous Bribri. All persons involved in caring for 65 infants (7-20 months) participated in the study, resulting in a total of 179 semistructured interviews. The samples showed differences in caregiving practices, with the urban sample resembling Western middle-class contexts emphasizing the maternal importance; the two rural samples showing extensive caregiving networks; however, differently composed. Moreover, the three samples revealed culturally specific concepts of potential attachment figures. The study emphasizes the need for culturally sensitive conceptual and methodological approaches in attachment research.
Five studies show that being the target of a positive stereotype is a negative interpersonal experience for those from individualistic cultures because positive stereotypes interfere with their ...desire to be seen as individuals separate from their groups. U.S.-born Asian Americans and women who heard a positive stereotype about their group in an intergroup interaction (e.g., "Asians are good at math," "women are nurturing") derogated their partner and experienced greater negative emotions than those who heard no stereotype. Negative reactions were mediated by a sense of being depersonalized, or "lumped together" with others in one's group, by the positive stereotype (Studies 1-3). Cross-cultural differences (Study 4) and an experimental manipulation of cultural self-construal (Study 5) demonstrated that those with an independent self-construal reacted more negatively to positive stereotypes than those with an interdependent self-construal. By bringing together research on stereotypes from the target's perspective with research on culture, this work demonstrates how cultural self-construals inform the way people interpret and respond to being the target of positive stereotypes.
Accumulating evidence suggests that distinct aspects of successful navigation—path integration, spatial-knowledge acquisition, and navigation strategies—change with advanced age. Yet few studies have ...established whether navigation deficits emerge early in the aging process (prior to age 65) or whether early age-related deficits vary by sex. Here, we probed healthy young adults (ages 18–28) and midlife adults (ages 43–61) on three essential aspects of navigation. We found, first, that path-integration ability shows negligible effects of sex or age. Second, robust sex differences in spatial-knowledge acquisition are observed not only in young adulthood but also, although with diminished effect, at midlife. Third, by midlife, men and women show decreased ability to acquire spatial knowledge and increased reliance on taking habitual paths. Together, our findings indicate that age-related changes in navigation ability and strategy are evident as early as midlife and that path-integration ability is spared, to some extent, in the transition from youth to middle age.
The objective of the study is to analyse the regions, age and sex differences in the incidence of knee osteoarthritis (KOA).
Data were extracted from the global burden of diseases (GBD) 2019 study, ...including incidence, years lived with disability (YLD), disability-adjusted life-years (DALYs) and risk factors. Estimated annual percentage changes (EAPCs) were calculated to quantify the temporal trends in age standardized rate (ASR) of KOA. Paired t-test, paired Wilcoxon signed-rank test and spearman correlation were performed to analyze the association of sex disparity in KOA and socio-demographic index (SDI).
There were significant regional differences in the incidence of knee osteoarthritis. In 2019, South Korea had the highest incidence of knee osteoarthritis (474.85,95%UI:413.34-539.64) and Thailand had the highest increase in incidence of knee osteoarthritis (EAPC = 0.56, 95%CI = 0.54-0.58). Notably, higher incidence, YLD and DALYs of knee osteoarthritis were associated with areas with a high socio-demographic index (r = 0.336, p < 0.001; r = 0.324, p < 0.001; r = 0.324, p < 0.001). In terms of age differences, the greatest increase in the incidence of knee osteoarthritis was between the 35-39 and 40-44 age groups. (EAPC = 0.52, 95%CI = 0.40-0.63; 0.47, 95%CI = 0.36-0.58). In addition, there were significant sex differences in the disease burden of knee osteoarthritis (P < 0.001).
The incidence of knee osteoarthritis is significantly different with regions, age and sex.
In human populations, women consistently outlive men, which suggests profound biological foundations for sex differences in survival. Quantifying whether such sex differences are also pervasive in ...wild mammals is a crucial challenge in both evolutionary biology and biogerontology. Here, we compile demographic data from 134 mammal populations, encompassing 101 species, to show that the female’s median lifespan is on average 18.6% longer than that of conspecific males, whereas in humans the female advantage is on average 7.8%. On the contrary, we do not find any consistent sex differences in aging rates. In addition, sex differences in median adult lifespan and aging rates are both highly variable across species. Our analyses suggest that the magnitude of sex differences in mammalian mortality patterns is likely shaped by local environmental conditions in interaction with the sex-specific costs of sexual selection.
Abstract Muscle morphological architecture, a crucial determinant of muscle function, has fascinated researchers since the Renaissance. Imaging techniques enable the assessment of parameters such as ...muscle thickness (MT), pennation angle (PA), and fascicle length (FL), which may vary with growth, sex, and physical activity. Despite known interrelationships, robust mathematical models like causal mediation analysis have not been extensively applied to large population samples. We recruited 109 males and females, measuring knee flexor and extensor, and plantar flexor MT, PA, and FL using real-time ultrasound imaging at rest. A mixed-effects model explored sex, leg (dominant vs. non-dominant), and muscle region differences. Males exhibited greater MT in all muscles (0.1 to 2.1 cm, p < 0.01), with no sex differences in FL. Dominant legs showed greater rectus femoris (RF) MT (0.1 cm, p = 0.01) and PA (1.5°, p = 0.01), while vastus lateralis (VL) had greater FL (1.2 cm, p < 0.001) and PA (0.6°, p = 0.02). Regional differences were observed in VL, RF, and biceps femoris long head (BFlh). Causal mediation analyses highlighted MT’s influence on PA, mediated by FL. Moderated mediation occurred in BFlh, with FL differences. Gastrocnemius medialis and lateralis exhibited FL-mediated MT and PA relationships. This study unveils the intricate interplay of MT, FL, and PA in muscle architecture.
Women, race and place in US Agriculture Pilgeram, Ryanne; Dentzman, Katherine; Lewin, Paul
Agriculture and human values,
12/2022, Letnik:
39, Številka:
4
Journal Article
Recenzirano
Odprti dostop
Research on women in U.S. agriculture highlights how, despite real challenges, women have made and continue to make spaces for themselves in this male-dominated profession. We argue that, partly due ...to data accessibility limitations, this work has tended to use white women’s experiences in agriculture as universal. Analyzing micro-data from the 2017 Census of Agriculture, this paper offers descriptive statistics about women and race in U.S. agriculture. We examine numerous characteristics of U.S. farms, including their spatial distribution, the average number of acres farmed, predominant crop types, and other characteristics to describe how white, Black, Indigenous, and Pacific Islander/Asian women farmers are faring. Our findings suggest significant differences in women’s farms by race. We argue that these are related to the history of forced and voluntary migration within the U.S. Our results indicate that understanding women’s experiences in farming requires understanding the impact of race and these broader historical patterns. Finally, because of these differences across races, we suggest that supporting “women in agriculture” may require tailored responses from agricultural policy and programming that addresses unique needs in specific communities.
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