A 50 Kilowatt Distributed Grid-Connected Photovoltaic Generation System for the University of Wyoming

The University of Wyoming (UW) campus (USA) is serving as the site for a 50 kilowatt solar photovoltaic (PV) power system. Three sub-systems were sited and built on the UW campus in 1996. The first sub-system, a 10 kW roof-integrated system of PV roof tiles is located on the roof of the Engineering Building. The second sub-system-a 5 kW rack-mounted, ballasted PV system is on a walkway roof of the Engineering building. The third sub-system is a 35 kW shade structure system and is located adjacent to the parking lot of the University\u27s football stadium. The three sub-systems differ in their design strategy since each is being used for research and education at the University. Each sub-system, being located at some distance away from one another, supplies a different part of the campus grid. Efforts continue at setting up a central monitoring system which will receive data remotely from all locations. A part of this monitoring system is complete. While the initial monitoring data shows satisfactory performance, a number of reliability problems with PV modules and inverters have delayed full functionality of the syste

Perceived Water Quality and Reported Health among Adults during the Flint, MI Water Crisis

Background and Purpose: In April 2014, the municipal water source for Flint, Michigan was changed from Lake Huron to the Flint River. Although residents reported concerns about the quality of tap water and resulting health problems, officials insisted that the water was safe. This study examined relationships between self-reported tap water quality during the water crisis and health conditions among Flint residents. Methods: Participants from each residential Census Tract in the City of Flint were recruited via address lists, online social media, and community-based events. The survey included mental and physical health items from the CDC’s Behavioral Risk Factor Surveillance System and an item on tap water quarter quality experiences. Analyses were weighted to be demographically representative. Results: Participants (N = 277) rated their tap water quality (taste, smell, appearance) as Poor (57%), Fair (20%), Good (13%), Very Good (6%), and Excellent (3%). Controlling for age, gender, years of education, whether respondents were African American or Hispanic/Latino/a, and population demographics, lower perceived tap water quality was associated with worse mental and physical health across all indicators. Conclusion: This study demonstrates associations of tap water quality experiences with reported poor physical and mental health among adults in Flint during the Flint Water Crisis

Relationships Among Disease, Social Support, and Perceived Health: A Lifespan Approach

We examined the relationship between the cumulative presence of major disease (cancer, stroke, diabetes, heart disease, and hypertension), social support, and self‐reported general and emotional well‐being in a community representative sample of predominantly White and African American respondents (N = 1349). Across all ages, greater presence of disease predicted poorer reported general health, and predicted lower emotional well‐being for respondents 40 and above. In contrast, social support predicted better‐reported general and emotional well‐being. We predicted that different types of social support (blood relatives, children, friends, community members) would be relatively more important for health in different age groups based on a lifespan or life stage model. This hypothesis was supported; across all ages, social support was related to better reported general and emotional health, but sources of support differed by age. Broadly, those in younger age groups tended to list familial members as their strongest sources of support, whereas older group members listed their friends and community members. As a whole, social support mediated the effect of disease on reported well‐being, however, moderated mediation by type of support was not significant. The results are consistent with a lifespan approach to changing social ties throughout the life course.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/116357/1/ajcp9758.pd

Integrating Power Engineering Topics and Applications in Non-Power Courses

This paper investigates integrating power engineering material over the breadth of an electrical engineering curriculum. Electrical engineering curricula have a large number of required courses and many subareas for students to study. By introducing power concepts in a variety of courses, students may be motivated to take additional courses in the power area and are better prepared for the diverse background which will be required of them as practising power engineers. The important interrelationships between subareas of electrical engineering are better understood by students when cross discipline applications are discussed. This paper describes the introduction of power concepts and applications in courses such as linear systems, digital systems, microprocessors, digital signal processing, electronic system design and electrical materials

Toxic trauma: Household water quality experiences predict posttraumatic stress disorder symptoms during the Flint, Michigan, water crisis

We examined the relationship between perceptions of household tap water quality and posttraumatic stress disorder (PTSD) symptoms during the Flint, Michigan, water crisis in 2015–2016. The Speak to Your Health Community Survey is a community‐based participatory component of the health surveillance system in Genesee County, Michigan. Perceptions of household tap water quality was added to the 2015–2016 survey wave after inadequate official response to concerns over water quality after a change in Flint’s municipal water supply. Respondents (N = 786) also completed a brief PTSD screening tool. We examined the relationships of perceived household tap water quality to PTSD symptomatology and positive screening criteria for PTSD, controlling for sociodemographics. Perceived tap water quality predicted PTSD symptomatology and positive screening criteria for PTSD, independent of sociodemographics. The adverse mental health impact of municipal toxic contamination may generalize to other similar environmental contamination incidents.Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/138395/1/jcop21898_am.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/138395/2/jcop21898.pd

Experimental study of super-rotation in a magnetostrophic spherical Couette flow

We report measurements of electric potentials at the surface of a spherical container of liquid sodium in which a magnetized inner core is differentially rotating. The azimuthal angular velocities inferred from these potentials reveal a strong super-rotation of the liquid sodium in the equatorial region, for small differential rotation. Super-rotation was observed in numerical simulations by Dormy et al. [1]. We find that the latitudinal variation of the electric potentials in our experiments differs markedly from the predictions of a similar numerical model, suggesting that some of the assumptions used in the model - steadiness, equatorial symmetry, and linear treatment for the evolution of both the magnetic and velocity fields - are violated in the experiments. In addition, radial velocity measurements, using ultrasonic Doppler velocimetry, provide evidence of oscillatory motion near the outer sphere at low latitude: it is viewed as the signature of an instability of the super-rotating region

Textile-Integrated Transmitting Unit

This contribution deals with the main parts of the textile-integrated transmitting unit, a transmitter and an antenna, operating in the ISM 5.8 GHz band. The transmitter is based on commercially available WLAN UART Serial Port OWS451 and it is controlled via the UART interface by microprocessor ATmega328. The antenna is based on the circular ring-slot concept and it is able to provide monopolar radiation pattern to ensure maximum coverage of the unit. The unit will be integrated in a seat cover and it will transmit the telemetry of sensors integrated in the seat (temperature, pressure…)

Young carers in England: findings from the 2018 BBC survey on the prevalence and nature of caring among young people

Background Many young people are involved in caring for parents, siblings, or other relatives who have an illness or disability. The aim of this study was to estimate the prevalence of caring by young people in England. Method A national survey of 925 English young people was conducted using the 18‐item survey version of the Multidimensional Assessment of Caring Activities Checklist for Young Carers. Results Around 7% of young people were identified as doing at least a high amount of caring activity and 3% a very high amount. Most frequently, caring by a young person is for a mother or a sibling, with a physical disability. Caring activity consisted mostly of domestic activities, household management, and emotional care. Conclusion This study provides the most up to date and methodologically sophisticated survey data on the prevalence of young caring in England, with implications for policy and practice

A Systematic Review of the Effect of Cognitive Strategies on Strength Performance

Background Researchers have tested the beliefs of sportspeople and sports medicine specialists that cognitive strategies influence strength performance. Few investigators have synthesised the literature. Objectives The specific objectives were to review evidence regarding (a) the cognitive strategy–strength performance relationship; (b) participant skill level as a moderator; and (c) cognitive, motivational, biomechanical/physiological, and emotional mediators. Method Studies were sourced via electronic databases, reference lists of retrieved articles, and manual searches of relevant journals. Studies had to be randomised or counterbalanced experiments with a control group or condition, repeated measures, and a quality control score above 0.5 (out of 1). Cognitive strategies included goal setting, imagery, self-talk, preparatory arousal, and free choice. Dependent variables included maximal strength, local muscular endurance, or muscular power. Results Globally, cognitive strategies were reliability associated with increased strength performance (results ranged from 61 to 65 %). Results were mixed when examining the effects of specific strategies on particular dependent variables, although no intervention had an overall negative influence. Indeterminate relationships emerged regarding hypothesised mediators (except cognitive variables) and participant skill level as a moderator. Conclusions Although cognitive strategies influence strength performance, there are knowledge gaps regarding specific types of strength, especially muscular power. Cognitive variables, such as concentration, show promise as possible mediators

Caring in mind? Professionals’ awareness of young carers and young adult carers in Switzerland

Findings from international research emphasis the need of these young people to be identified and recognised. Therefore, a nationwide quantitative study of professionals' awareness was conducted in the Swiss context. Data were collected from professionals working in education, healthcare and social services. The study examined professionals’ familiarity with the terms used to describe young people with caring responsibilities; their ability to identify the population in their professional context; their perception of the relevance of the issue; their ability to support them; and their own training needs. Potential study participants were contacted via email. Data were collected using an online survey, which was open for 14 weeks during the period of September to December 2016. Survey data from 2,311 professionals, who reported being regularly in contact with young people with caring responsibilities in their occupational context, were included for analysis. Of all terms presented in the survey, young carer (YC) was the term most familiar to all professionals. Among healthcare and education sector, the percentage of professionals familiar with this term was higher than that among professionals from social services. Professionals from social services were the most likely to consider the issue relevant to their work, those from education were the least likely. Professionals who were familiar with the terms describing YC were more likely to consider the issue relevant to their work. Study results showed that more than half of the respondents had not identified young people with caring responsibilities, and that the ability of participants to identify YC was related to their occupational sector. The perceived ability to support YC was related to their reported ability to recognise them. In order to enable professionals to support YC, raising awareness, providing training for professionals and a national network of existing organisations should be well considered