617 research outputs found
Association of heart rate variability with perceptual-motor measures among ROTC cadets
Neural processes underlying situational awareness share circuits with those that regulate autonomic function. Heart rate variability may provide an important indicator of cognitive-motor performance capabilities in challenging situations
AN APPARATUS FOR LIGHT-LESS ARTIFICIAL GAUGE FIELDS AND NEW IMAGING TECHNIQUES
The thesis presented has three components: experiments with artificial vector potentials, a new atom-chip apparatus designed and built for light-less fictitious gauge fields, and an imaging experiment. First, we introduce experiments with light-induced vector potentials using two-photon Raman coupling to simulate charged particles using charge neutral Bose-Einstein condensates (BECs). Depending on the spatial and temporal properties of the engineered vector potential, it is possible for ultracold atoms to experience different variants of an effective Lorenz force such as; magnetic fields, electric fields, and spin-orbit coupling, via coupling between an atom's internal spin and its linear momentum. In this context, we discuss the main focus of this thesis, the design and construction of an atom-chip apparatus for Rb BECs for experiments with light-less artificial gauge fields. Eliminating the source of heating due to spontaneous emission will open new paths to explore artificial gauge fields in alkali fermions and will be a step towards the realization of simulated topological insulators using ultracold atoms. Finally, we will describe in detail an imaging experiment performed on this new apparatus, the reconstruction of the two-dimensional column density of a BEC using multiple defocused images taken simultaneously
Parentsâ Perception of Overweight in Relation to Child Mood and Disordered Eating
Parental perception of their childâs weight may impact childâs psychological functioning; however, there is a dearth of literature examining this relationship. Data suggest that parental concern with childâs overweight may be related to child distress and/or disordered eating. Yet, it is unknown if parentsâ perception of teensâ overweight relates to child functioning. We examined 113 adolescent (12-17y; 14.4 ± 1.6) boys and girls (53% girls) with overweight or obesity (BMIz 2.0 ± .45) and their parents. Youth self-identified as 53% Caucasian or White, 27% Black or African American, 3.5% Asian, and 16.5% multiple races, unknown, or other. Parents reported on their perception of their childâs overweight as either âsomewhat/sometimes trueâ and âvery/often true.â Teens reported on their symptoms of anxiety and depression and whether they had experienced loss-of-control eating in the past month. T-tests and Chi Square analyses were used to analyze child factors based on parent perceptions. Compared to parents who reported âsomewhat/sometimes trueâ (n = 51), parents who reported âvery/often trueâ (n = 62), had children with significantly higher anxiety (p = .048) and higher likelihood of reporting loss-of-control eating in the past month (p = .039). There were no differences in symptoms of depression. Including sex, race, and BMIz as covariates did not alter findings. In summary, youth whose parents perceive their children as more definitively overweight are more likely to report symptoms of anxiety and disordered eating. Further data are needed to determine if parental perception is related to their adolescent childâs overall well-being
Legal Needs and Health Outcomes for People with Cancer in Medical-Legal Partnership Programs: A Systematic Review
Medical-legal partnerships (MLPs) integrate lawyers into the medical team to address patientsâ unmet legal needs that create barriers to good health and well-being (i.e., âhealth-harming legal needsâ) and improve health outcomes. Given the growing popularity of MLP as an innovative healthcare model, this review has two objectives: to identify peer-reviewed literature measuring (1) cancer patientsâ legal needs, and (2) outcomes for cancer patients after receiving MLP legal services. A systematic literature search was conducted in concordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) for the period 2006- 2022. Four articles met the inclusion criteria for objective one: three articles, including one that also met the inclusion criteria for objective one, met the inclusion criteria for objective two, for a total of six articles. Literature confirms that when screened, cancer patients regularly struggle with health-harming legal needs. Further published research is needed to better identify and understand the unmet legal needs of cancer patients and the impact of MLPs on cancer patientsâ outcomes
Effect of Supplemental Fat From Dried Distillers Grains with Solubles or Corn Oil on Cow Performance, IGF-1, GH, and NEFA Concentrations
Research has demonstrated that supplemental fat and(or) changes in growth hormone (GH) or insulin-like growth factor-1 (IGF-1) concentrations may affect reproductive performance in beef females. Dried distillers grains with solubles (DDGS) contain approximately 10% to 15% fat; however, minimal research to date has investigated DDGS specifically as a supplemental fat source. The objective of this experiment was to investigate whether supplemental fat from either DDGS or raw corn oil impacts cow growth performance and plasma GH, IGF-1, or non-esterified fatty acid (NEFA) concentrations. Sixty open beef cows [body weight (BW) = 553.5 ± 38.7 kg; body condition score (BCS) = 5.4 ± 0.53] were stratified by BW and BCS and allotted to 15 pens (n = 4 per pen; 14.6 x 37.2 m). Pens were randomly assigned to one of three dietary treatments: 1) DDGS, 2) a combination of high-protein dried distillers grain, corn bran, and corn oil (OIL), or 3) a combination of high-protein dried distillers grain and corn bran (HPBRAN). The DDGS, OIL, and HPBRAN treatments each comprised 35% of the diet dry matter (DM). Thirty-five percent was selected based upon the sulfur (S) content of dietary ingredients in the DDGS treatment and water, estimated water intake, and the maximum tolerable S concentration for cattle on forage-based diets (0.5%). In addition to dietary treatments, cattle were provided grass hay [7.7% crude protein (CP)] and a pelleted supplement containing vitamins and minerals as part of a totally mixed ration. Cows were fed once daily, in the morning, for 60 d. All diets were iso-nitrogenous (15.3% CP from d 0 to 47 and 15.1% from d 48 to 60) and total fat concentrations were 5.1% for DDGS and OIL and 3.5% for HPBRAN. Weights and blood samples were recorded prior to feeding on d -1, 0, 28, 59, and 60. Dry matter intake, average daily gain, final BW, and gain:feed were not affected by treatment. Treatment had no effect on plasma GH, IGF-1, or NEFA concentrations. These results suggest that providing low concentrations of supplemental fat as DDGS or raw corn oil to a forage-based diet does not influence growth performance, plasma GH, IGF-1, or NEFA concentrations in open beef cows
A Midsagittal-View Magnetic Resonance Imaging Study of the Growth and Involution of the Adenoid Mass and Related Changes in Selected Velopharyngeal Structures
âWeâre being tracked at all timesâ: Student perspectives of their privacy in relation to learning analytics in higher education
Higher education institutions are continuing to develop their capacity for learning analytics (LA), which is a sociotechnical data mining and analytic practice. Institutions rarely inform their students about LA practices and there exist significant privacy concerns. Without a clear student voice in the design of LA, institutions put themselves in an ethical grey area. To help fill this gap in practice and add to the growing literature on studentsâ privacy perspectives, this study reports findings from over 100 interviews with undergraduate students at eight United States highereducation institutions. Findings demonstrate that students lacked awareness of educational data mining and analytic practices, as well as the data on which they rely. Students see potential in LA, but they presented nuanced arguments about when and with whom data should be shared; they also expressed why informed consent was valuable and necessary. The study uncovered perspectives on institutional trust that were heretofore unknown, as well as what actions might violate that trust. Institutions must balance their desire to implement LA with their obligation to educate students about their analytic practices and treat them as partners in the design of analytic strategies reliant on student data in order to protect their intellectual privacy
Economic and humanistic burden of HPV-related disease in Indonesia:A qualitative analysis
The burden of human papillomavirus (HPV) and HPV-related cancers and genital warts is increasing in developing countries, including Indonesia. The objective of this study was to qualitatively explore the humanistic and economic burden of these HPV-related diseases in patients in Indonesia. In 2021, in-depth interviews and focus groups were conducted with patients (N = 18) with HPV-related diseases and healthcare professionals (HCPs; N = 10) specialised in treating these patients. Interviews explored the physical, mental, social, and economic burden of HPV-related diseases. Patients emphasised the psychological and social burden of HPV-related diseases, which negatively impacted their mental state and close relationships. Treatment for HPV-related diseases was also associated with a substantial cost, which health insurance only partially alleviated. HCPs understood the physical negative impact of HPV-related diseases, but some understated patientsâ social, psychological, and financial burden. This research underscores the substantial economic and humanistic burden of HPV-related diseases that could be prevented by vaccination. In addition, it highlights the need for novel interventions to reduce negative psychosocial consequences of HPV-related diseases in Indonesia. Increased HCP education of the broader humanistic impacts of HPV-related diseases may improve patient support and increase awareness for preventive strategy.</p
Dealing with mobility: Understanding access anytime, anywhere
The rapid and accelerating move towards the adoption and use of mobile technologies has increasingly provided people and organisations with the ability to work away from the office and on the move. The new ways of working afforded by these technologies are often characterised in terms of access to information and people âanytime, anywhereâ. This paper presents a study of mobile workers that highlights different facets of access to remote people and information, and different facets of anytime, anywhere. Four key factors in mobile work are identified from the study: the role of planning, working in âdead timeâ, accessing remote technological and informational resources, and monitoring the activities of remote colleagues. By reflecting on these issues, we can better understand the role of technology and artefact use in mobile work and identify the opportunities for the development of appropriate technological solutions to support mobile workers
- âŠ