大熊猫阴道角化细胞变化的连续监测

对一只旅居美国的青年雌性大熊猫在休情期和发情期的阴道角化细胞变化作了连续监测.结果表明:休情期间低于35%,发情期间平均高于80%.当角化率上升到70%左右时,提示动物发情期开始;上升至90%左右,表明已进入发情高潮期,是配种良机.其结果与尿激素水平和行为表现相比较,三者具有高度一致性,证明阴道角化细胞变化监测对判定大熊猫的发情及配种时机具有良好的指示意义.     

Elder care as "frustrating" and "boring": Understanding the persistence of negative attitudes toward older patients among physicians-in-training

ObjectivesThis study explores the attitudes of physicians-in-training toward older patients. Specifically, we examine why, despite increasing exposure to geriatrics in medical school curricula, medical students and residents continue to have negative attitudes toward caring for older patients.MethodsThis study used ethnography, a technique used by anthropologists that includes participant-observation, semi-structured interviews, and facilitated group discussions. Research was conducted at two tertiary-care academic hospitals in urban Northern California, and focused on eliciting the opinions, beliefs, and practices of physicians-in-training toward geriatrics.ResultsWe found that the majority of physicians-in-training in this study expressed a mix of positive and negative views about caring for older patients. We argue that physicians-in-trainings' attitudes toward older patients are shaped by a number of heterogeneous and frequently conflicting factors, including both the formal and so-called “hidden” curricula in medical education, institutional demands on physicians to encourage speed and efficiency of care, and portrayals of the process of aging as simultaneously as a “problem” of inevitable biological decay and an opportunity for medical intervention.DiscussionEfforts to educate medical students and residents about appropriate geriatric care tend to reproduce the paradoxes and uncertainties surrounding aging in biomedicine. These ambiguities contribute to the tendency of physicians-in-training to develop moralizing attitudes about older patients and other patient groups labeled “frustrating” or “boring”.     

A comparative study between enteric parasites of Coyotes in a protected and suburban habitat

Coyotes (Canis latrans) have inhabited Florida (USA) since the 1960s and are currently found throughout the state. Our objective was to obtain information on enteric parasites of coyotes from two different habitats. Fresh coyote fecal samples were collected from protected and suburban habitats in Pinellas County, Florida, USA (27^o54′ N, 82^o41′W) from May 2005 to March 2007. A standard fecal flotation examination and formalin-ethyl acetate sedimentation protocol were utilized on fecal samples from both habitats. Five newly documented coyote parasites were documented: one cestode (Hymenolepis spp.), one nematode (Ascaris spp.), and three protozoa (Balantidium coli, Blastocystis spp., and Entamoeba histolytica). Nine hitherto unreported parasites for FL coyotes were also discovered: two cestodes (Diphyllobothrium latum and Dipylidium caninum), two nematodes (Toxocara canis and Uncinaria stenocephala), one trematode (Paragonimus spp.), and four protozoa (Cryptosporidium spp., Giardia canis, Cystoisospora spp., and Sarcocystis cruzi). The protected area supported significantly more undocumented (i.e., newly identified) parasites for FL coyotes, and Protozoa as compared to the suburban area. Florida coyotes are likely more susceptible to infection by novel parasites because of their rapid range expansion and lack of acquired immunity. In addition, rapid habitat loss and urbanization in Florida may increase the probability of disease transmission between wild and domestic canids. We suggest preventative measures that may lower the risk of parasitic infection and promote co-existence with coyotes in urban landscapes.     

The economic significance of laws relating to employment protection and different forms of employment: Analysis of a panel of 117 countries, 1990–2013

The authors use time series econometric analysis applying non‐stationary panel data methods to estimate the relationships between employment protection legislation and legal protection of different forms of employment (part‐time, fixed‐term and agency work), and economic outcomes, with a data set based on the Centre for Business Research Labour Regulation Index (CBR–LRI), covering 117 countries from 1970 to 2013. Findings suggest that these laws have become significantly more protective over time and that strengthening worker protection is associated with an increase in labour's share of national income, rising labour force participation, rising employment, and falling unemployment, although the observed magnitudes are small when set against wider economic trends.     

Hybrid Strategies: Allocating Involvement in the Digital Age

An important trait of mobile phones is their capacity to superimpose multiple social interactions in time and space. Little research examines how individuals choose between face‐to‐face and digitally mediated interactions in specific social contexts. Drawing upon focus group interviews with a diverse sample of university students in the United States, we argue that, contrary to a perspective that is popular in theory and journalistic commentary, mobile phone users do not experience the digital and the face‐to‐face as distinct realms. In deciding where to direct their attention, users enmesh the distant and the present, making moves that are expressive and strategic in their own right that reveal the interest, intimacy and urgency that users place in multiple, coinciding social involvements.     

SAME-GENDER SEX IN THE UNITED STATES IMPACT OF T-ACASI ON PREVALENCE ESTIMATES

Well-conducted telephone surveys provide an economical meansof estimating the prevalence of sexual and reproductive behaviorsin a population. There is, however, a nontrivial potential forbias since respondents must report sensitive information toa human interviewer. The National STD and Behavior MeasurementExperiment (NSBME) evaluates a new survey technology—telephoneaudio computer-assisted self-interviewing (T-ACASI)—thateliminates this requirement. The NSBME embedded a randomizedexperiment in a survey of probability samples of 1,543 U.S.and 744 Baltimore adults ages 18 to 45. Compared with NSBMErespondents interviewed by human interviewers, respondents interviewedby T-ACASI were 1.5 to 1.6 times more likely to report same-gendersexual attraction, experience, and genital contact. The impactof T-ACASI was more pronounced (odds ratio = 2.5) for residentsof locales that have historically been less tolerant of same-gendersexual behaviors and for respondents in households with children(odds ratio = 3.0).     

We are strong and we are resilient: Career experiences of women engineers

With the purpose of breaking down socially derived, implicit assumptions regarding women and highlighting their resilience and strength within organizations, this study focused upon career experiences of women engineers. Findings indicated women constantly navigated gendered social and organizational norms to develop their careers. We found them to employ three distinct coping strategies, conforming to play by the rules, negotiating to play around the rules and defying to establish own rules. The ways in which participants arrived at and enacted on these coping strategies is illustrative of their strength, forethought and self‐directedness. All participants demonstrated high self‐concept and the ability to learn and adapt. The study allowed us to acknowledge prevalence of gendered norms and expectations, while also highlighting women's strength in navigating their careers. We hope that the study is able to illuminate persistence of male perspective in the literature and promote a perspective of women as strong and resilient professionals.     

Implicit Family Process Rules in Eating-Disordered and Non-Eating-Disordered Families

Family environment has been shown to be one of the factors related to the presence of eating disorders among young-adult females. Clinical experience and theories about eating disorders postulate that implicit family rules are an intricate part of family process that may have a great effect on the creation and maintenance of such problems. This study compared implicit family process rules (specifically rules pertaining to kindness; expressiveness and connection; constraining thoughts, feelings, and self; inappropriate caretaking; and monitoring) in families with a young-adult female diagnosed with an eating disorder—either anorexia nervosa, bulimia nervosa, or eating disorder not otherwise specified—and families with a young-adult female without an eating disorder diagnosis. One hundred two families (51 eating disordered and 51 comparison) participated in the study. Mothers, fathers, young-adult female children, and siblings completed the Family Implicit Rules Profile ( Harper, Stoll, & Larson, 2007 ). Results indicated that eating-disordered families are governed by a greater proportion of constraining family rules than are non-eating-disordered families. Additionally, eating-disordered youth reported a lower proportion of facilitative family rules and a higher proportion of constraining family rules than did parents and siblings. Theoretical, research, and clinical implications are discussed.     

A Native American Exposure Scenario

EPA's Risk Assessment Guidance for Superfund (RAGS) and later documents provide guidance for estimating exposures received from suburban and agricultural activity patterns and lifestyles. However, these methods are not suitable for typical tribal communities whose members pursue, at least in part, traditional lifestyles. These lifestyles are derived from a long association with all of the resources in a particular region. We interviewed 35 members of a Columbia River Basin tribe to develop a lifestyle-based subsistence exposure scenario that represents a midrange exposure that a traditional tribal member would receive. This scenario provides a way to partially satisfy Executive Order 12898 on environmental justice, which requires a specific evaluation of impacts from federal actions to peoples with subsistence diets. Because a subsistence diet is only a portion of what is important to a traditional lifestyle, we also used information obtained from the interviews to identify parameters for evaluating impacts to environmental and sociocultural qualify of life.