41 research outputs found

    Examining smoking and cessation during pregnancy among an Appalachian sample: a preliminary view

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    Background Several transitions that a woman experiences prenatally may influence her desire or ability to discontinue smoking. This study explores the role of smoking for young, Appalachian, nulliparous pregnant women and their plans for smoking during their pregnancies. Results The reports of women and their male partners were taken from baseline interviews conducted during the first trimester of pregnancy. Cigarette smoking appeared to be more than an isolated addictive activity; rather, smoking was interwoven in women\u27s social and personal realms, often changing as their perceptions of self changed. Women and their partners who continued to smoke appeared to be depressed, reject authority, and perceived little control over issues related to being pregnant. Conclusion These findings support the argument that standard substance use treatments and polices based on stages-of-change theories may not be effective for all individuals particularly those experiencing significant developmental changes in their lives. Greater success might be obtained from treatment programs designed to recognize the impact of these transitions as it relates to the substance use. The changing experiences of pregnant women in terms of their identity development, views of others, and their relationships have not been adequately addressed in existing cessation programs. Empirically-based interventions targeting these lifestyle characteristics may lead to increased cessation success among pregnant women

    Genome-wide association analyses of physical activity and sedentary behavior provide insights into underlying mechanisms and roles in disease prevention

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    Although physical activity and sedentary behavior are moderately heritable, little is known about the mechanisms that influence these traits. Combining data for up to 703,901 individuals from 51 studies in a multi-ancestry meta-analysis of genome-wide association studies yields 99 loci that associate with self-reported moderate-to-vigorous intensity physical activity during leisure time (MVPA), leisure screen time (LST) and/or sedentary behavior at work. Loci associated with LST are enriched for genes whose expression in skeletal muscle is altered by resistance training. A missense variant in ACTN3 makes the alpha-actinin-3 filaments more flexible, resulting in lower maximal force in isolated type IIA muscle fibers, and possibly protection from exercise-induced muscle damage. Finally, Mendelian randomization analyses show that beneficial effects of lower LST and higher MVPA on several risk factors and diseases are mediated or confounded by body mass index (BMI). Our results provide insights into physical activity mechanisms and its role in disease prevention. Multi-ancestry meta-analyses of genome-wide association studies for self-reported physical activity during leisure time, leisure screen time, sedentary commuting and sedentary behavior at work identify 99 loci associated with at least one of these traits

    Genome-wide association analyses of physical activity and sedentary behavior provide insights into underlying mechanisms and roles in disease prevention

    Get PDF
    Although physical activity and sedentary behavior are moderately heritable, little is known about the mechanisms that influence these traits. Combining data for up to 703,901 individuals from 51 studies in a multi-ancestry meta-analysis of genome-wide association studies yields 99 loci that associate with self-reported moderate-to-vigorous intensity physical activity during leisure time (MVPA), leisure screen time (LST) and/or sedentary behavior at work. Loci associated with LST are enriched for genes whose expression in skeletal muscle is altered by resistance training. A missense variant in ACTN3 makes the alpha-actinin-3 filaments more flexible, resulting in lower maximal force in isolated type IIA muscle fibers, and possibly protection from exercise-induced muscle damage. Finally, Mendelian randomization analyses show that beneficial effects of lower LST and higher MVPA on several risk factors and diseases are mediated or confounded by body mass index (BMI). Our results provide insights into physical activity mechanisms and its role in disease prevention.publishedVersionPeer reviewe

    Examining therapists\u27 perceptions of confidentiality across various therapeutic environments, professional organizations, and client development (an exploratory study).

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    Confidentiality is at the cornerstone of what can make or break the therapeutic relationship. Ethical guidelines are constantly changing, and therapists need to consider their ethical code and other variables including their state law and organizational policy when making decisions related to confidentiality. When working with clients of varying developmental levels, the decisions therapists make regarding confidentiality issues are often not clear. In addition, therapists’ views and experiences concerning confidentiality can play a large role in their decisions concerning obtaining informed consent, duty to protect, and breaching confidentiality in therapy. This exploratory study examined the differences among therapists of diverse professional associations, work settings, and personal characteristics with regard to their beliefs, experiences, and behaviors in managing confidentiality with clients of various age ranges. A survey instrument was adapted from previous surveys of Miller (2002), Mannarino (1982), and Sullivan et. al.(2002) examining child abuse and confidentiality. A pilot study was conducted and changes were made based on participant feedback. A randomized sample of 200 members from the American Psychological Association, 100 members from the American Mental Health Counselors Association and 100 members from the American School Counselor Association were obtained for participation in the study. One hundred and fourteen usable surveys were returned after a follow-up notice was sent to members of the professional organizations. Data analyses revealed statistically significant differences across professional organization, work setting, and therapist personal characteristics (years of post-graduate clinical experience, graduate degree, primary theoretical orientation, age). More specifically, differences were noted concerning ways of obtaining consent for therapy/assessment, approach to discussing confidentiality in therapy/assessment, information shared/provided to parents/guardians, ways of managing client risk taking behaviors, and the influence of specific factors on the management of client confidentiality. This research study was also designed to explore the differences in which various professionals handled confidentiality-related issues with clients of diverse age ranges. As expected, in a variety of situations, client age was found to impact therapists’ confidentiality-related decisions. Clinical implications and limitations are discussed as well as suggestions for future research

    Capturing the uncertainty in adversary attack simulations.

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    This work provides a comprehensive uncertainty technique to evaluate uncertainty, resulting in a more realistic evaluation of PI, thereby requiring fewer resources to address scenarios and allowing resources to be used across more scenarios. For a given set of dversary resources, two types of uncertainty are associated with PI for a scenario: (1) aleatory (random) uncertainty for detection probabilities and time delays and (2) epistemic (state of knowledge) uncertainty for the adversary resources applied during an attack. Adversary esources consist of attributes (such as equipment and training) and knowledge about the security system; to date, most evaluations have assumed an adversary with very high resources, adding to the conservatism in the evaluation of PI. The aleatory uncertainty in PI is ddressed by assigning probability distributions to detection probabilities and time delays. A numerical sampling technique is used to evaluate PI, addressing the repeated variable dependence in the equation for PI
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