3,028 research outputs found
Novel Rubidium Poly-Nitrogen Materials at High Pressure
First-principles crystal structure search is performed to predict novel
rubidium poly-nitrogen materials at high pressure by varying the stoichiometry,
i. e. relative quantities of the constituent rubidium and nitrogen atoms. Three
compounds of high nitrogen content, RbN_{5}, RbN_{2}, and Rb_{4}N_{6}, are
discovered. Rubidium pentazolate (RbN5) becomes thermodynamically stable at
pressures above \unit[30]{GPa}. The charge transfer from Rb to N atoms enables
aromaticity in cyclo-N_{^{_{5}}}^{-} while increasing the ionic bonding in the
crystal. Rubidium pentazolate can be synthesized by compressing rubidium azide
(RbN3) and nitrogen (N2) precursors above \unit[9.42]{GPa}, and its
experimental discovery is aided by calculating the Raman spectrum and
identifying the features attributed to N_{^{_{5}}}^{-} modes. The two other
interesting compounds, RbN2 containing infinitely-long single-bonded nitrogen
chains, and Rb_{4}N_{6} consisting of single-bonded N_{6} hexazine rings,
become thermodynamically stable at pressures exceeding \unit[60]{GPa}. In
addition to the compounds with high nitrogen content, Rb_{3}N_{3}, a new
compound with 1:1 RbN stoichiometry containing bent N_{3} azides is found to
exist at high pressures
Primary Care: Mental and Behavioral Health and Persons With Intellectual and Developmental Disabilities
Introduction: There are multiple ways to address the mental and behavioral health needs of people with intellectual and developmental disabilities (IDD).
Method: In this paper, we do not argue for a particular approach or set of approaches, but instead review the benefits of integrating mental and behavioral health supports with primary healthcare based primarily on our experience in and understanding of healthcare systems in the United States. It is estimated that between 35 and 40% of people with IDD also live with psychiatric disorders. NADD, an association for persons with developmental disabilities and mental health needs in the US holds that coexisting IDD and a psychiatric disorder interferes with a personâs education and job readiness, and disrupts family and peer relationships. Historically, the presence of such disorders among people with IDD was not well understood or was discounted altogether.
Conclusion: Over the past 15 years, however, greater attention is being paid to these comorbidities and their treatment, including the need to integrate mental and behav- ioral health treatments into primary care. Healthcare must account for multiple domains of quality of life, going beyond yearly physicals, and acute care visits, for example, to assess individualsâ healthcare goals and support them in achieving those goals. While inte- grated healthcare delivery systems can be difficult to find and access for people with IDD, such approaches are more responsive to the comprehensive needs and desires of people with IDD
Io's polar volcanic thermal emission indicative of magma ocean and shallow tidal heating models
The distribution of Io's volcanic activity likely reflects the position and
magnitude of internal tidal heating. We use new observations of Io's polar
regions by the Juno spacecraft Jovian Infrared Auroral Mapper (JIRAM) to
complete near-infrared global coverage, revealing the global distribution and
magnitude of thermal emission from Io's currently erupting volcanoes. We show
that the distribution of volcanic heat flow from 266 active hot spots is
consistent with the presence of a global magma ocean, and/or shallow
asthenospheric heating. We find that Io's polar volcanoes are less energetic
but about the same in number per unit area than at lower latitudes. We also
find that volcanic heat flow in the north polar cap is greater than that in the
south. The low volcanic advection seen at Io's poles is therefore at odds with
measurements of background temperature showing Io's poles are anomalously warm.
We suggest that the differences in volcanic thermal emission from Io's poles
compared to that at lower latitudes is indicative of lithospheric dichotomies
that inhibit volcanic advection towards Io's poles, particularly in the south
polar region.Comment: 17 pages, two tables, 7 figure
Demographic characteristics of exploited tropical lutjanids: a comparative analysis
Demographic parameters from seven exploited coral reef lutjanid species were compared as a case study of the implications of intrafamily variation in life histories for
multispecies harvest management. Modal lengths varied by 4 cm among four species (Lutjanus fulviflamma, L. vitta, L. carponotatus, L. adetii), which were at least 6 cm smaller than the modal lengths of the largest species (L. gibbus, Symphorus nematophorus, Aprion virescens). Modal ages, indicating ages of full selection to fishing gear, were 10 years or less for all species, but maximum ages ranged from
12 (L. gibbus) to 36 years (S. nematophorus). Each species had a unique growth pattern, with differences in length-at-age and mean asymptotic fork length (Lâ), but smaller species generally grew fast during the first 1â2 years of life and larger species grew more slowly over a longer period. Total mortality rates varied among species; L. gibbus had the highest mortality and L. fulviflamma, the
lowest mortality. The variability in life history strategies of these tropical lutjanids makes generalizations about lutjanid life histories difficult, but the fact that all seven had characteristics that would make them particularly vulnerable to fishing indicates that
harvest of tropical lutjanids should be managed with caution
Project Reach: Implementation of Evidence-Based Psychotherapy Within Integrated Healthcare for Hurricane Harvey Affected Individuals
Project Reach was established to deliver evidence-based mental healthcare services to children and adults affected by Hurricane Harvey and its aftermath. Through Project Reach, an innovative multi-component assessment and treatment service is utilized to identify and treat in integrated healthcare settings both children and adults exhibiting significant behavioral health concerns in Houston. The aim is to provide sustainable, integrated mental health services through primary care and school-based settings to post-Harvey affected individuals whose emotional needs remain unmet. This paper describes the design and implementation of Project Reach as well as special considerations for implementation. The overall goal of Project Reach is to form a platform for expanding integrated services for those affected by Harvey that will maximize behavioral health outcomes while reducing cost and improving access
Tailoring Messages to Individual Differences in Monitoring- Blunting Styles to Increase Fruit and Vegetable Intake
Objective
To examine whether messages matched to individuals\u27 monitoring-blunting coping styles (MBCS) are more effective in increasing fruit and vegetable intake than mismatched messages. MBCS refers to the tendency to either attend to and amplify, or distract oneself from and minimize threatening information. Design/Setting
Randomly assigned messages were tailored to resonate with either monitors or blunters and delivered at baseline, 1 week, 2 months, and 3 months later. Surveys were conducted at baseline and 2 and 4 months later. Participants
531 callers to a cancer information hotline who did not meet the 5 A Day guideline. Intervention
A brief telephone-delivered message and 3 mailings of booklets and promotional items encouraging fruit and vegetable intake, tailored for either monitors or blunters. Main Outcome Measure
Fruit and vegetable intake 2 and 4 months post-baseline. Analysis
Hierarchical regression modeling. Results
Messages matched to MBCS were more effective than mismatched messages, particularly for the monitor message, in increasing intake at 2 months but not at 4 months. Conclusions and Implications
These minimal interventions influenced fruit and vegetable intake. MBCS may be a promising target for developing tailored messages aimed at increasing intake, although additional research is needed to verify the robustness of these findings
Casting Health Messages in Terms of Responsibility for Dietary Change: Increasing Fruit and Vegetable Consumption
Objective
To compare the effectiveness of messages emphasizing the importance of either personal or social responsibility for dietary behavior change in increasing fruit and vegetable intake. Design/Setting
Randomly assigned individually or socially oriented messages were delivered at baseline, 1 week, and 2 and 3 months later. Telephone surveys were conducted at baseline and 1 and 4 months later. Participants
528 callers to a cancer information hotline who were not meeting the â5 A Dayâ dietary recommendation. Interventions
A brief telephone-delivered message and 3 mailings of pamphlets and promotional items encouraging fruit and vegetable intake that emphasized either personal or social responsibility. Main Outcome Measures
Fruit and vegetable intake 1 and 4 months postbaseline. Analysis
Chi-square, t tests, and analyses of variance and covariance. Results
Both types of messages increased intake substantially (P = .01). To some extent, the social responsibility message continued to motivate increased intake over time compared with the personal responsibility message. Conclusions and Implications
These minimal interventions had a substantial impact on fruit and vegetable intake. Health messages might be more effective over the longer term if they are designed to emphasize the importance of social responsibility, although further study is needed to confirm the robustness of these findings
African American prostate cancer survivorship: Exploring the role of social support in quality of life after radical prostatectomy
PURPOSE: The aim of this study was to explore the African American prostate cancer survivorship experience following radical prostatectomy and factors contributing to quality of life during survival.
DESIGN: African American men who were part of a larger prostate cancer cohort were invited to participate in a focus group. Eighteen open-ended questions were designed by the study team and an experienced moderator to elicit participants\u27 survivorship experiences.
RESULTS: Twelve men consented to participate in the study. Emergent themes included views of prostate cancer in the African American community, perceptions of normalcy, emotional side effects following radical prostatectomy, and social support involvement and impact during recovery.
CONCLUSIONS: Previous findings suggest that African American men may experience more distress than Caucasian men when facing typical prostate cancer side effects. Traditional masculine role norms and negative perceptions of disease disclosure in the African American community could be contributing to the distress reported by some in this study. Strengthening social support systems by promoting more prosocial coping and help-seeking behaviors early in the survivorship journey may help bypass the detrimental health effects associated with masculine role identification, resulting in improved quality of life throughout the lengthy survival period anticipated for these men
Physician Role in Physical Activity for African-American Males Undergoing Radical Prostatectomy for Prostate Cancer
Purpose
Physical activity is recognized as a complementary therapy to improve physical and physiological functions among prostate cancer survivors. Little is known about communication between health providers and African-American prostate cancer patients, a high risk population, regarding the health benefits of regular physical activity on their prognosis and recovery. This study explores African-American prostate cancer survivorsâ experiences with physical activity prescription from their physicians.
Methods
Three focus group interviews were conducted with 12 African-American prostate cancer survivors in May 2014 in St. Louis, MO. Participantsâ ages ranged from 49 to 79 years, had completed radical prostatectomy, and their time out of surgery varied from 7 to 31 months.
Results
Emerged themes included physician role on prescribing physical activity, patientsâ perceived barriers to engaging in physical activity, perception of normalcy following surgery, and specific resources survivorsâ sought during treatment. Of the 12 men who participated, 8 men (67%) expressed that their physicians did not recommend physical activity for them. Although some participants revealed they were aware of the importance of sustained physical activity on their prognosis and recovery, some expressed concerns that urinary dysfunction, incontinence, and family commitments prevented them from engaging in active lifestyles.
Conclusions
Transitioning from post radical prostatectomy treatment to normal life was an important concern to survivors. These findings highlight the importance of physical activity communication and prescription for prostate cancer patients
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