A Detailed Investigation of the Proposed NN Serpentis Planetary System

The post-main sequence eclipsing binary NN Serpentis was recently announced as the potential host of at least two massive planetary companions. In that work, the authors put forward two potential architectures that fit the observations of the eclipsing binary with almost identical precision. In this work, we present the results of a dynamical investigation of the orbital stability of both proposed system architectures, finding that they are only stable for scenarios in which the planets are locked in mutual mean motion resonance. In the discovery work, the authors artificially fixed the orbital eccentricity of the more massive planet, NN Ser(AB) c, at 0. Here, we reanalyse the observational data on NN Serpentis without this artificial constraint, and derive a new orbital solution for the two proposed planets. We detail the results of further dynamical simulations investigating the stability of our new orbital solution, and find that allowing a small non-zero eccentricity for the outer planet renders the system unstable. We conclude that, although the original orbits proposed for the NN Serpentis planetary system prove dynamically feasible, further observations of the system are vital in order to better constrain the system's true architecture.Comment: Accepted for publication in Monthly Notices of the Royal Astronomical Society; 5 figures, 2 table

A Second Giant Planet in 3:2 Mean-Motion Resonance in the HD 204313 System

We present 8 years of high-precision radial velocity (RV) data for HD 204313 from the 2.7 m Harlan J. Smith Telescope at McDonald Observatory. The star is known to have a giant planet (M sin i = 3.5 M_J) on a ~1900-day orbit, and a Neptune-mass planet at 0.2 AU. Using our own data in combination with the published CORALIE RVs of Segransan et al. (2010), we discover an outer Jovian (M sin i = 1.6 M_J) planet with P ~ 2800 days. Our orbital fit suggests the planets are in a 3:2 mean motion resonance, which would potentially affect their stability. We perform a detailed stability analysis, and verify the planets must be in resonance.Comment: Accepted for publication in Ap

An EMG & Motion Analysis Study of the Elliptical Trainer

Background and Purpose The purpose of this study is to describe lower extremity muscle activity and joint range of motion while moving both forward and backward on an elliptical trainer at minimum and maximum inclines. Subjects Ten healthy subjects (7 female and 3 male) gave informed consent to voluntarily participate in this study. Methods A single group experimental design was used. A maximum contraction was performed for comparison measure and electromyographic (EMG) data was collected while the subjects performed the stride at the specified variables. Results The vastus lateralis was the most active of all the muscles throughout the entire experiment. The gluteus maxim us had, on average, the least amount of muscle activity. The biceps femoris was more active during forward stride than backward stride while the rectus femoris was more active during the backward stride. Conclusion and Discussion The results of this study are inconsistent with the manufacturer\u27s claims

Principles in Practice: The Advocacy and Empowerment Project

Complete Digitized Text of Chapter 8 of the book Combating Violence & Abuse of People with Disabilities: A Call to Action by Nancy M. Fitzsimons.https://cornerstone.lib.mnsu.edu/books-fitzsimons-combating-violence/1009/thumbnail.jp

Pregnancy Intendedness by Maternal Disability Status and Type in the United States

Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/154611/1/psrh12130.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/154611/2/psrh12130_am.pd

Healthy Lifestyles for People with Disabilities

People with disabilities are more susceptible to compromised health status and preventable secondary conditions. A Healthy Lifestyles curriculum was developed as a health promotion program for people with disabilities. Using the curriculum, ten free 2½-day workshops were provided for people with various disabilities in Oregon and Southwest Washington. Workshops were conducted in collaboration with local entities such as Centers for Independent Living. The workshops took an integrated approach to health, addressing connections among physical, social, emotional, and spiritual health, and health through meaningful activities. During workshops, the participants obtained health information and experienced healthy activities such as yoga and non-impact aerobics, both tailored for people with disabilities. At the end of the workshop, each participant identified two healthy lifestyle goals to work toward. Progress and/or barriers in accomplishing those goals were shared in support groups for 6-9 months. Preliminary results indicate early and sustained improvements in health behaviors and health-related attitudes. The Healthy Lifestyles program offers a promising approach to promoting health among people with disabilities

How much do delayed health care seeking, delayed care provision and diversion from primary care contribute to the transmission of STIs

Objectives: To explore the changing pattern of condom use from 1990 to 2000; to identify sociodemographic and behavioural factors associated with condom use; and reasons for condom use in 2000. Methods: Large probability sample surveys administered among those resident in Britain aged 16–44 (n = 13 765 in 1990, n = 11 161 in 2000). Face to face interviews with self completion components collected sociodemographic, behavioural, and attitudinal data. Results: Condom use in the past year among sexually active 16–24 year old men increased from 61.0% in 1990 to 82.1% in 2000 (p<0.0001), and from 42.0% to 63.2% (p<0.0001) among women of the same age, with smaller increases among older age groups. Among individuals reporting at least two partners in the previous 4 week period, approximately two thirds reported inconsistent or no condom use (63.1% (95% CI 55.9% to 69.8%) of the men and 68.5% (95% CI 57.6% to 77.7%) of the women). Conclusions: Rates of condom use increased substantially between 1990 and 2000, particularly among young people. However, inconsistent condom use by individuals with high rates of partner acquisition may contribute significantly to the recent resurgence in STIs. This group is an important target for intensive and specific sexual health interventions

The Full-sky Astrometric Mapping Explorer -- Astrometry for the New Millennium

FAME is designed to perform an all-sky, astrometric survey with unprecedented accuracy. It will create a rigid astrometric catalog of 4x10^7 stars with 5 < m_V < 15. For bright stars, 5 < m_V < 9, FAME will determine positions and parallaxes accurate to < 50 microarcseconds, with proper motion errors < 50 microarcseconds/year. For fainter stars, 9 < m_V < 15, FAME will determine positions and parallaxes accurate to < 500 microarcseconds, with proper motion errors < 500 microarcseconds/year. It will also collect photometric data on these 4 x 10^7 stars in four Sloan DSS colors.Comment: 6 pages, 4 figures, to appear in "Working on the Fringe