291 research outputs found

    The optimal convergence rate of monotone schemes for conservation laws in the Wasserstein distance

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    In 1994, Nessyahu, Tadmor and Tassa studied convergence rates of monotone finite volume approximations of conservation laws. For compactly supported, \Lip^+-bounded initial data they showed a first-order convergence rate in the Wasserstein distance. Our main result is to prove that this rate is optimal. We further provide numerical evidence indicating that the rate in the case of \Lip^+-unbounded initial data is worse than first-order.Comment: 10 pages, 5 figures, 2 tables. Fixed typos. Article published in Journal of Scientific Computin

    Mindfulness-based Intervention for Perinatal Grief Education and Reduction among Poor Women in Chhattisgarh, India: a Pilot Study

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    INTRODUCTION: Stillbirth is a significant public health problem in low to middle income countries and results in perinatal grief, often with negative psychosocial impact. In low-resource settings, such as Chhattisgarh, India, where needs are high, it is imperative to utilize low-cost, effective interventions. Mindfulness-based stress reduction (MBSR) is an empirically sound intervention that has been utilized for a broad range of physical and mental health problems, and is adaptable to specific populations. The main objective of this pilot study was to explore the feasibility and effectiveness of a shortened, culturally adapted mindfulness-based intervention to address the complex grief after stillbirth. METHODS: We used an observational, pre-post-6 week post study design. The study instrument was made up of descriptive demographic questions and validated scales and was administered as a structured interview due to low literacy rates. We used a community participatory approach to culturally adapt the five-week mindfulness-based intervention and delivered it through two trained local nurses. Quantitative and qualitative data analyses explored study outcomes as well as acceptability and feasibility of the intervention. RESULTS: 29 women with a history of stillbirth enrolled, completed the pretest and began the intervention; 26 completed the five-week intervention and post-test (89.7%), and 23 completed the six-week follow-up assessment (88.5%). Pretest results included elevated psychological symptoms and high levels of perinatal grief, including the active grief, difficulty coping, and despair subscales. General linear modeling repeated measures was used to explore posttest and six-week follow up changes from baseline, controlling for significantly correlated demographic variables. These longitudinal results included significant reduction in psychological symptoms; four of the five facets of mindfulness changed in the desired direction, two significantly; as well as significant reduction in overall perinatal grief and on each of the three subscales. DISCUSSION: The shortened, culturally adapted, mindfulness-based intervention pilot study was well received and had very low attrition. We also found significant reductions of perinatal grief and mental health symptoms over time, as well as a high degree of practice of mindfulness skills by participants. This study not only sheds light on the tremendous mental health needs among rural women of various castes who have experienced stillbirth in Chhattisgarh, it also points to a promising effective intervention with potential to be taken to scale for wider delivery

    Qualitative Inquiry into Church-Based Assets for HIV/AIDS Prevention and Control: A Forum Focus Group Discussion Approach

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    Assets church members believed they needed to engage in effective HIV/AIDS prevention and control activities. We used the three-step forum focus group discussion (FFGD) methodology to elicit responses from 32 church leaders and lay members, representing five denominations in Aba, Nigeria. Concrete resources, health expertise, finances, institutional support, capacity building, and spiritual support connected to the collective interest of members were indicated as useful for church members to engage in HIV/AIDS prevention and control activities. Adequate planning and delivery of cost-effective, appropriate and sustainable health promotion programs require an understanding of perceived church-based assets

    'I want to be screened just like the pirates!': The Power of Community-Based Participatory Research (CBPR) Theatre to Aid Research Participation

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    Research participation is an important component of advancing whole health and eliminating health disparities, especially in communities facing environmental justice (EJ) issues. Though federally mandated, recruitment of racial and ethnic minorities can be a daunting task and recruitment of children an even greater challenge. A range of typical recruitment strategies (printed materials, word of mouth, broadcast etc.) for those of ethnically and culturally diverse backgrounds have exhibited only limited to modest success, depending on the community being served and the type of engagement. To date, there has been only limited assessment of the use of community-based participatory research (CBPR) theatre as a culturally relevant recruitment strategy. The ENRRICH Railyard Study used CBPR theatre to engage an underserved EJ community, and to assess the health impact of residential proximity to a major freight railyard. The railyard community is comprised of primarily low-income Hispanic families. To promote participation, a CBPR theatre play – a partnership between a community- based organisation (CBO) and a university institution – was produced, from design to production, at two elementary schools. Following the play, parental consents and surveys were sent home. The response was immediate and one of the largest to date – 74 percent of children participated in the study. The CBPR theatre, university and CBO partnership provided an opportunity to engage under-served minority children and their parents, thus encouraging participation and facilitating educationon respiratory health and the environment. This article includes experiences and lessons learned from using CBPR theatre to encourage study participation, critical for promoting sustainable change in an EJ community

    Intentions For Having Sex: What Matters

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    The intentions of 614 adolescents to have sex were examined in conjunction with their participation in risky behaviors (hard drugs, violence and suicide, alcohol and marijuana use) and protective factors (community connected and against teen sex, educational aspirations, emotional support from family, friends and girlfriend/boyfriend or sexual partner). Key findings from bivariate and linear regression analyses revealed that alcohol and marijuana use were correlated with intention to have sex among adolescents, as was emotional support from a boyfriend/girlfriend or sexual partner. This study offers insights regarding intentions to have sex among adolescents, pointing particularly to the issue of emotional support in a dating relationship as a motivation for having sex. Findings from this study can be used to develop health education and promotion programs focusing on delaying sexual intercourse

    Smoking Cessation Behavior in Male Portuguese Californians

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    The purpose of this study was to identify determinants of smoking cessation in a sample of male Portuguese Californians using data from the Portuguese Study, a dissertation thesis study with a crosssectional design that assessed 141 smokers and 67 ex-smokers of Portuguese origin residing in Southern and Central California recruited from Portuguese community clubs. Socio-demographics, acculturation, health beliefs, stress, and social support for smoking cessation were assessed and measured in this population. Bivariate predictors of becoming an ex-smoker were being married (p=.01), having a high support index for not smoking (p<.01), having a nonsmoking close friend (p<.01), perception that doctors control health (p=.02), disagreement with the belief that health occurs by chance (p=.01), and belief that it is easy to stop smoking (p<.01). In a multivariate analysis - after controlling for demographic variables, acculturation, and stress variables - ex-smoking status remained associated with having a high support index for not smoking (p<.01), having a nonsmoking close friend (p=.05), disagreement with the belief that health occurs by chance (p<.01) and belief that it is easy to stop smoking (p<.01). Conclusion: Social support, the belief that health does not occur by chance and self-efficacy were associated with being an ex-smoker in Portuguese Californian males. Smoking cessation programs in this population should address these determinants

    An Intentional Wholeness Focus and the Association With Burnout in Graduate Students

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    Rates of stress, anxiety, depression, and burnout for university students are concerning. As in other competitive professional fields, graduate students in occupational therapy, physical therapy, and speech language pathology face many performance pressures. Creating supportive learning and wholeness climates along with individual grit, resilience, and healthy spirituality have the potential to positively impact these pressures. The study’s purpose was to examine factors related to burnout within an institution committed to creating supportive learning and wholeness environments. Three hundred and fifty-three graduate students from occupational therapy, physical therapy, and speech language pathology graduate programs were recruited to participate in a cross-sectional survey exploring student functioning using primarily validated measures. Hierarchical multiple regressions were utilized to test the unique contributions of perceived learning and wholeness climates, demographics, mental health factors, and potential coping factors to better understand burnout/disengagement and burnout/exhaustion. All models accounted for a significant amount of the variance in both burnout/disengagement (38.2%) and burnout/exhaustion (46.9%). Higher student perceptions of positive wholeness and learning climates, grit, and personal spirituality/peace suggested lower burnout/disengagement, but spirituality/meaning had an unexpected negative outcome. Burnout/exhaustion was negatively associated with anxiety, depression, and spirituality/faith while positively with spirituality/peace. Overall, students’ views of the university providing a supportive wholeness and learning climate as well as their personal grit was associated with lower burnout. Depression and anxiety were negatively associated with burnout/exhaustion. Spirituality was more complicated with variation in risk versus supportive factors. Results may help guide future studies, provide suggestions for specific programming, and promote supportive university environments

    Factors Related to Youth Living with HIV Delaying Access to Care: The Role of Positive and Negative Social Network Influences on Health Seeking Behaviors

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    To explore factors related to youths’ delay in seeking care after an HIV diagnosis. Multivariate analyses were performed on 347 participants who were selected from a sample of 351 adolescents participating in a 1994-1996 survey among youth in four U.S. metropolitan cities. Key findings were that participants with prosocial peer behaviors took longer (34 days) to seek care than youth with poorer social engagement and excessive fibbing delayed seeking care (23 days). Potentially important findings suggest being female, older, having close peer networks, conduct problems, and certain housing settings may delay seeking care. Multivariate regression analyses indicate that later entry into medical care was observed among those with close social networks and behavioral characteristics related to delinquency

    \u3cem\u3eMy Crown and Glory\u3c/em\u3e: Community, Identity, Culture, and Black Women’s Concerns of Hair Product-Related Breast Cancer Risk

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    Breast cancer (BC) incidence rates for Black and non-Hispanic White women have recently converged; however, Black women continue to die at higher rates from the disease. Black women also use hair products containing hormonally active chemicals at higher rates than other races and ethnic groups. Studies now link chemical components in hair and personal care products to breast cancer risk. Using a community-based participatory research approach, this qualitative study explored community concerns about the role of hair products on breast cancer risk. Focus groups and key informant interviews using triangulation to assure relevant perspectives (women with and without breast cancer as well as younger and older women of differing SES, stylists) explored women’s perceived risk and knowledge of breast cancer risk factors. Data analysis used grounded theory methods of coding facilitated by QDA-Miner. Findings from 91 participants indicated varying levels of awareness but near universal concerns about the potential link of hair products to BC. Breast cancer is a significant concern for Black women and their loved ones. While women were concerned and some respondents believed ingredients in hair products may be harmful to their health, they wrestled with the idea of making changes as hair for most is aligned with beauty, individuality, and identity. For many altering their product use patterns to potentially less risky choices pits health against identity. Health education interventions to minimize harmful hair product usage must acknowledge and incorporate cultural normative beliefs of hair for Black women

    Comparison of clinical outcomes with orodispersible versus standard oral olanzapine tablets in nonadherent patients with schizophrenia or bipolar disorder

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    Abstract PURPOSE: Medication nonadherence is common in the treatment of patients with severe mental illness and is a frequent cause of relapse. Different formulations have been developed in an effort to improve medication adherence. The aim of this study was to explore whether there are differential clinical outcomes between two different formulations of olanzapine (orodispersible tablets [ODTs] vs standard oral tablets [SOT]) for the treatment of nonadherent patients with schizophrenia or bipolar disorder. METHODS: Data for this analysis were from an observational study conducted in Europe (N=903). Adult schizophrenia and bipolar disorder patients in outpatient settings who initiated or changed to either olanzapine ODT or SOT according to physician decision within the last 45 days were eligible for enrollment. The follow-up period was 1 year. Of the 903 participants, 266 nonadherent patients (Medication Adherence Rating Scale score 0-4 at baseline) were included in the analysis. Clinical outcomes of interest were: 1) hospitalization and 2) relapse identified by the participating psychiatrist or hospitalization. An adjusted logistic regression model was fitted. RESULTS: Patients taking ODT had more severe illness at baseline (P<0.001) as assessed with the Clinical Global Impression with mean (standard deviation [SD]) scores of ODT 4.63 (1.03) and SOT 4 (1.16). In the regression models adjusted for potential confounders, patients taking ODT had significantly lower odds for hospitalization (odds ratio =0.355; 95% confidence interval =0.13-0.974) and relapse or hospitalization (odds ratio =0.368; 95% confidence interval =0.183-0.739), respectively. CONCLUSION: Nonadherent patients with schizophrenia or bipolar disorder treated with the orodispersible formulation were less likely to be hospitalized or suffer relapse compared to those patients taking the standard oral coated tablets
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