The effect of landfills on rural residential property values: Some empirical evidence.

Abstract The question of whether solid waste landfills affect residential property values has long been a subject of debate. Past research has resulted in mixed conclusions. The current study examines six landfills, which differ in size, operating status, and history of contamination. The effect of each landfill is estimated by the use of multiple regression. In five of the landfills, no statistically significant evidence of an effect was found. In the remaining case, evidence of an effect was found, indicating that houses in close proximity to this landfill suffered an average loss of about six percent in value

A Circumstellar Disc in a High-Mass Star Forming Region

We present an edge-on Keplerian disc model to explain the main component of the 12.2 and 6.7 GHz methanol maser emission detected toward NGC7538-IRS1 N. The brightness distribution and spectrum of the line of bright masers are successfully modeled with high amplification of background radio continuum emission along velocity coherent paths through a maser disc. The bend seen in the position-velocity diagram is a characteristic signature of differentially rotating discs. For a central mass of 30 solar masses, suggested by other observations, our model fixes the masing disc to have inner and outer radii of about 350 AU and 1000 AU.Comment: 11 pages, accepted for publication in ApJ Letter

Exact Fourier expansion in cylindrical coordinates for the three-dimensional Helmholtz Green function

A new method is presented for Fourier decomposition of the Helmholtz Green Function in cylindrical coordinates, which is equivalent to obtaining the solution of the Helmholtz equation for a general ring source. The Fourier coefficients of the Helmholtz Green function are split into their half advanced+half retarded and half advanced-half retarded components. Closed form solutions are given for these components in terms of a Horn function and a Kampe de Feriet function, respectively. The systems of partial differential equations associated with these two-dimensional hypergeometric functions are used to construct a fourth-order ordinary differential equation which both components satisfy. A second fourth-order ordinary differential equation for the general Fourier coefficent is derived from an integral representation of the coefficient, and both differential equations are shown to be equivalent. Series solutions for the various Fourier coefficients are also given, mostly in terms of Legendre functions and Bessel/Hankel functions. These are derived from the closed form hypergeometric solutions or an integral representation, or both. Numerical calculations comparing different methods of calculating the Fourier coefficients are presented

Research in High Energy Physics

This final report details the work done from January 2010 until April 2013 in the area of experimental and theoretical high energy particle physics and cosmology at the University of California, Davis

Management of a girl with delayed puberty and elevated gonadotropins

A girl presenting with delayed puberty and elevated gonadotropins may have a range of conditions such as Turner Syndrome (TS), Primary Ovarian Insufficiency (POI) and 46,XY DSD. An organized and measured approach to investigation can help reach a timely diagnosis. Management of young people often requires specialist multidisciplinary input to address the endocrine and non-endocrine features of these complex conditions, as well as the psychological challenges posed by their diagnosis. Next generation sequencing within the research setting has revealed several genetic causes of POI and 46,XY DSD which may further facilitate an individualized approach to care of these young people in the future. Pubertal induction is required in many and the timing of this may need to be balanced with other issues specific to the condition (e.g., allowing time for information-sharing in 46,XY DSD, optimizing growth in TS). Shared decision-making and sign-posting to relevant support groups from the outset can help empower young people and their families to manage these conditions. We describe three clinical vignettes of girls presenting with delayed puberty and hypergonadotropic amenorrhea and discuss their clinical management in the context of current literature and guidelines

Role of Information and Communication Technologies (ICTs) in Enhancing Food Utilization among Smallholder Farmers’ Households in Northern Nigeria

Information and Communication Technologies (ICTs) are attracting global attention because of their unprecedented potential to bring about astounding improvement. The numerous advantages presented by ICTs can be employed towards the enhancement of rural households’ capabilities in attaining sufficient, safe and nutritious food.  This paper seeks to establish the potency of ICTs in enhancing the food utilization among smallholder households in Northern Nigeria.  Data were collected through a structured questionnaire administered to 120 smallholders.  The results show that smallholders consider that food utilization was inadequate (80.9%); however, they acknowledged that ICTs could play a significant role in enhancing food utilization.  The findings further reveal that the following were ranked first to fifth by household heads: disseminating appropriate information about food crops (98.6%), improving purchasing power and market price (94.1%), enhancing decision-making regarding food (89.5%), improving food distribution practices (81.1%) and improving cultural and individual food choice (77.6). Keywords: ICTs, Food utilization, Smallholder farmer households, Nigeria DOI: 10.7176/IKM/10-1-05 Publication date: January 31st 202

Effect of Smallholders Socio-Economic Characteristics on Farming Households’ Food Security in Northern Nigeria

Food security is indispensable prerequisite for the continued existence of mankind and his economic activities including adequate food production.  The study examined the effect of smallholder socio-economic characteristics on farming households’ food security in Northern Nigeria. Data for this study were obtained from 120 randomly selected farming households, using a structured questionnaire. The results revealed that 81.7% of the households considered themselves food insecure.  Furthermore, the majority of households have low incomes and low educational attainment which usually affects food security. There was also a significant negative association between food security and education as well as government policies. The analysis shows that low levels of education and government policies affected rural households. The paper therefore recommended that government and other development agencies should enhance food security among smallholders’ farmers and rural communities through farmer education, promoting labour-saving technologies and facilitating access to market information.  In the same vein, the paper infers that Nigeria needs to come up with results oriented food policy which for now it lacks.  The public policy makers must as a matter of urgency see food as an essential component of welfares and as such develop sufficient political will to achieve food increase in food production and eventually attain food security for all. Keywords: household food security; household food insecure; smallholder farmers; Nigeria DOI: 10.7176/JESD/11-4-16 Publication date: February 29th 202

The Effects of Poetry in Elderly Populations with Memory Impairment

Introduction. A small body of research on therapeutic use of poetry in individuals with memory impairment demonstrates benefits similar to that of more widely studied music interventions. This project aims to assess the effects of participation in a poetry group on the residents of a memory care floor within the Converse Home, an assisted living facility in Burlington, Vermont. Methods.. We evaluated the effects of twelve group poetry sessions on residents\u27 well-being in several domains. Each session included a reading and writing portion, which were evaluated separately to assess differences in measures of communication, interest, and enjoyment. These measures, along with negative responses, were recorded on Likert scales. T-tests, ANOVA, and post-hoc comparisons were used to compare behavioral and affective observations in the reading versus writing sessions. Results.. Positive responses were significantly higher in reading sessions (p Conclusion.. Although the limitations of this project preclude us from drawing individual conclusions regarding the therapeutic efficacy of poetry in individuals with memory impairment, we demonstrate that poetry sessions have a positive impact on global quality of life outcomes and introduction of poetry sessions in this population has a beneficial effect.https://scholarworks.uvm.edu/comphp_gallery/1242/thumbnail.jp