AN EMPIRICAL ANALYSIS OF FARM STRUCTURE AND OFF-FARM WORK DECISIONS

This study considers the extent to which farm structure may be endogenous to off-farm labor supply decisions. The empirical analysis utilizes structural models consisting of three equation systems describing labor supply, scale and scope in an effort to evaluate the extent to which farm and off-farm labor decisions are jointly made.Farm Management,

Analyzing Spatial Patterns in Reefscape Ecology Via Remote Sensing, Benthic Habitat Mapping, and Morphometrics

A growing number of scientists are investigating applications of landscape ecology principles to marine studies, yet few coral reef scientists have examined spatial patterns across entire reefscapes with a holistic ecosystem-based view. This study was an effort to better understand reefscape ecology by quantitatively assessing spatial structures and habitat arrangements using remote sensing and geographic information systems (GIS). Quantifying recurring patterns in reef systems has implications for improving the efficiency of mapping efforts and lowering costs associated with collecting field data and acquiring satellite imagery. If a representative example of a reef is mapped with high accuracy, the data derived from habitat configurations could be extrapolated over a larger region to aid management decisions and focus conservation efforts. The aim of this project was to measure repeating spatial patterns at multiple scales (10s m2 to 10s km2) and to explain the environmental mechanisms which have formed the observed patterns. Because power laws have been recognized in size-frequency distributions of reef habitat patches, this study further investigated whether the property exists for expansive reefs with diverse geologic histories. Intra- and inter-reef patch relationships were studied at three sites: Andavadoaka (Madagascar), Vieques (Puerto Rico), and Saipan (Commonwealth of the Northern Mariana Islands). In situ ecological information, including benthic species composition and abundance, as well as substrate type, was collected with georeferenced video transects. LiDAR (Light Detection and Ranging) surveys were assembled into digital elevation models (DEMs), while vessel-based acoustic surveys were utilized to empirically tune bathymetry models where LiDAR data were unavailable. A GIS for each site was compiled by overlying groundtruth data, classifications, DEMs, and satellite images. Benthic cover classes were then digitized and analyzed based on a suite of metrics (e.g. patch complexity, principle axes ratio, and neighborhood transitions). Results from metric analyses were extremely comparable between sites suggesting that spatial prediction of habitat arrangements is very plausible. Further implications discussed include developing an automated habitat mapping technique and improving conservation planning and delimitation of marine protected areas

The Pernicious Influence of the Ideal/Nonideal Distinction in Political Philosophy

The notions of “ideal theory” and “nonideal theory” have become widely accepted in political philosophy. Recently, several philosophers’ have urged that ideal theory systematically produces practically irrelevant theories. Such philosophers argue that political philosophy ought move away from ideal theory in order to make the discipline more germane to the unjust real world. Call this tactic of eliminating ideal theory “Strategy.” In this paper, I argue that political philosophy would do well to abandon the ideal/nonideal distinction. Though the use of INID is widespread, philosophers do not have one uniform way of drawing the distinction; of the several common ways of drawing the distinction, none is categorical. As a consequence of this ambiguity, the role that INID plays in our political philosophical theorizing has become pernicious

Low temperature effects on the transcriptome of Yersinia pestis and its transmissibility by Oropsylla montana fleas

2016 Spring.Includes bibliographical references.Yersinia pestis, the causative agent of plague, is primarily a rodent-associated, flea-borne zoonosis. Transmission to humans is mediated most commonly by the flea vector, Oropsylla montana, and occurs predominantly in the Southwestern United States. In these studies, we hypothesized that Y. pestis-infected O. montana fleas held at temperatures as low as 6ºC could serve as reservoirs of the plague bacillus during the winter months in temperate regions with endemic plague foci. With few exceptions, previous studies showed O. montana to be an inefficient vector at transmitting Y. pestis at 22-23°C particularly when such fleas were fed on susceptible hosts more than a few days after ingesting an infectious blood meal. We examined whether holding fleas at sub-ambient temperatures (for purposes of these studies, ambient temperature is defined as 23°C) affected the transmissibility of Y. pestis by this vector. Colony-reared O. montana fleas were given an infectious blood meal containing a virulent Y. pestis strain (CO96-3188), and potentially infected fleas were maintained at different temperatures (6ºC, 10°C, 15°C, or 23ºC). Transmission efficiencies were tested by allowing groups of ~15 infectious fleas to feed on each of seven naïve CD-1 mice on days 1-4, 7, 10, 14, 17, and 21, 28, 35, and 42 post infection (p.i.). Fleas held at 6ºC, 10°C and 15°C were able to effectively transmit at every time point p.i. The percentage of transmission to naïve mice by fleas maintained at low temperatures was higher than for fleas maintained at 23ºC and indicates that O. montana fleas efficiently transmit Y. pestis at low temperatures. Moreover, bacterial loads of flea cohorts maintained at temperatures of 6ºC, 10ºC and 15ºC were statistically higher than fleas maintained at 23ºC. In addition, whole transcriptomes of Y. pestis bacteria grown at 6ºC, 10°C, 15°C and 23ºC were analyzed to assess differential gene expression at each temperature to identify genes which may contribute to an increase in virulence or survivability of the plague pathogen at the lower temperatures when compared to ambient temperature. This is the first comprehensive study to demonstrate efficient transmission of Y. pestis by O. montana fleas maintained at temperatures as low as 6ºC. Our findings further contribute to the understanding of plague ecology in temperate climates by providing support for the hypothesis that Y. pestis is able to overwinter within the flea gut and potentially cause infection during the following transmission season. The findings also might hold implications for explaining the focality of plague in tropical regions where plague occurs in cooler environments, primarily located at higher elevations

Trans Men’s Access to Knowledgeable Providers and Their Experiences in Health Care Settings: Differences by Demographics, Mental Health, and Degree of Being “Out” to Providers

Transgender adults face a health care system rife with stigma, including a lack of culturally responsive providers and high likelihood of discrimination and mistreatment. However, there is a gap in knowledge about trans men—those assigned a female sex at birth who identify as men or as transmasculine—including subgroups, such as trans men of color. Using data from the U.S. Transgender Survey, the largest transgender survey conducted in the United States, this study analyzes whether trans men’s access to knowledgeable providers and their experiences of mistreatment in health care were related to demographic and mental health characteristics and degree of being “out” to providers. Among 7,950 trans men, respondent race and ethnicity, education level, disability status, psychological distress, suicidality, and being less “out” were associated with assessing one’s health care provider as not knowledgeable about trans-related care. Mistreatment in health care was more common among Alaska Native/American Indian trans men; those who lived in or near poverty; those who were queer, pansexual, bisexual, or an orientation not listed; those with a disability; those experiencing distress or suicidality; and those who were more “out.” This article discusses how findings can inform culturally responsive health care interventions with trans men

Exploring the Experiences of Transgender and Gender Diverse Adults in Accessing a Trans Knowledgeable Primary Care Physician

Transgender and gender diverse individuals face a variety of barriers when attempting to access healthcare, from discrimination to lack of access to lack of knowledgeable providers. Using data from the 2015 United States Trans Survey (N = 27,715), this study looks at the differences within the TGD population regarding having seen a doctor in the past year, having a primary care provider, and having a primary care provider who is knowledgeable about trans health. Logistic regressions indicate that even within an all transgender and gender diverse sample, a variety of identities and experiences are related to increased or decreased likelihood of each of these outcomes, with significant differences across gender, race/ethnicity, age, sexual orientation, disability status, educational attainment, annual income, disability status, religiosity, military status, overall health, housing status, and insurance coverage. Not only should there be an effort to support transgender and gender diverse individuals in accessing care, but there is a clearly indicated need for additional education for healthcare providers, especially those doing primary care, on how to offer knowledgeable, affirming, and intersectional care to their patients

Does it get better? LGBTQ social work students and experiences with harmful discourse

Although the field of social work is grounded in social justice, the social work educational experience, including classrooms, may not live up to this value, especially for lesbian, gay, bisexual, transgender, and queer (LGBTQ) students. Using a qualitative phenomenological approach, this study examined the experiences of harmful discourse in social work classrooms for LGBTQ students. Findings indicate that students experienced being misgendered, tokenized, and erased through cis-/heteronormative language and classroom teachings. Although social work is guided by frameworks of social justice, microaggressions and discrimination may be vaguely glossed over, if addressed at all. This study highlights the gap between the values social work teaches and how social work education is delivered

Designing a Bone Health and Soy Focus Group Discussion Guide Based on the Health Belief Model

Focus groups were used to assess the knowledge and skills of women in order to support curricula development. The Health Belief Model was applied to the discussion guide to enhance focus group findings and applications. Constructs related to perceived susceptibility, severity, benefits, and barriers; cues to action; and self-efficacy were probed. Focus group findings revealed that women may have a limited understanding of osteoporosis risk. Perceived barriers such as negative perceptions to soy consumption were also noted. Cues to action were identified and integrated. Basing focus group discussion guides on model constructs may enhance focus group results and their applications

Predictors of Healthcare Mistreatment Among Transgender and Gender Diverse Individuals: Are There Different Patterns by Patient Race and Ethnicity?

Using data from the 2015 United States Transgender Survey, this study investigates which patient sociodemographic characteristics and psychosocial risks are associated with likelihood of transgender mistreatment in healthcare and how patterns vary for patients of color. Numerous predictors, including alignment of identity documents, were associated with healthcare mistreatment. Among subgroups of transgender patients of color, psychosocial risks were more consistently significant than sociodemographic characteristics in predicting mistreatment. National and international health organizations are called to enact clear policies that affirm transgender patients and patients of color and establish a commitment to effectively serving these populations within their ethical codes

Redesign of a Large Lecture Course Into a Small-Group Learning Course

Objective. To describe the redesign of a large self-care course previously delivered in a traditional lecture format to a small-group case-based course