UNLV Wind Orchestra & Green Valley High Symphonic Band

Program listing performers and works performed

Genealogies of the Anderson, Bewer, Mann, Grant, Means, and Patten Families

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Green Valley High School & UNLV Wind Orchestra

Program listing performers and works performed

A study of the prevalence of various lower urinary tract symptoms in children with analysis of comorbidities and uroflowmetry

Background: The International Children’s Continence Society (ICCS) in its standardization article in 2006 and subsequent revision in 2014 have provided guidelines for the diagnosis and management of lower urinary tract symptoms (LUTS) in children. However, the terminologies are still not in common parlance and colloquial terms are being heavily used in India. Objective: The objective of the study was to evaluate the clinical spectrum of LUTS and their comorbidities in children. Materials and Methods: This was an observational cross-sectional study conducted in a tertiary care hospital in Northern India. Children, included in the study, aged 5–12 years who presented with LUTS as defined in the ICCS 2014 updated guidelines. A simultaneous analysis of uroflowmetry graphs was also done in these children and the observations presented in this paper. Results: Enuresis was the most common LUTS with which children presented to the OPD (78% cases) followed by increased frequency of micturition (42%). Among comorbidities, constipation was present in one-third patients of LUTS. Uroflowmetry done in LUTS often yields a normal “bell-shaped” graph in majority of the patients (71%). The study shows that many enuretics have underlying other LUTS and comorbidities that we should be aware of and uroflowmetry, if not coupled with urodynamic studies, is not a game changer. Conclusion: There are not many studies post the standardization of the ICCS conducted in India and this study aims at increasing the awareness of the same among physicians and researchers alike

Effectiveness of video-assisted teaching program on dental hygiene among children

Introduction: Worldwide, dental problems affect children’s health, causing millions of school hours to be lost each year. An effective community prevention program as a planned procedure prevents the onset of a disease among a group of individuals and the most cost-effective method is health education. Objectives: Assess the effectiveness of video-assisted teaching program on dental hygiene among primary schoolchildren. Methods and Materials: An experimental study was carried out in 60 primary schoolchildren between the age group of 5 and 10 years by dividing them into experimental and waitlisted control group. Pretest- post-test waitlisted control group design and simple random sampling were used. Standardized plaque index score and semistructured knowledge questionnaire used as tool. Results: The experimental group pre-test means rank (30.23) was significantly lower than the overall post-test rank (44.00) according to Mann–Whitney U-test. The control group pre-test means rank (30.77) was significantly higher than the post-test means rank (17.00) U = 442 (Z = −0.118), p < 0.01. The difference between the experimental and waitlisted control group was large (μ = 0.906). Conclusion: The level of awareness among schoolchildren regarding correct dental hygiene practices is low. The video-assisted teaching program was found to be effective in improving the dental hygiene of the schoolchildren as measured by plaque index score. The knowledge regarding the importance of maintaining dental hygiene will help more and more schoolchildren to follow the correct dental hygiene practices

Surface melting of the vortex lattice

We discuss the effect of an (ab)-surface on the melting transition of the pancake-vortex lattice in a layered superconductor within a density functional theory approach. Both discontinuous and continuous surface melting are predicted for this system, although the latter scenario occupies the major part of the low-field phase diagram. The formation of a quasi-liquid layer below the bulk melting temperature inhibits the appearance of a superheated solid phase, yielding an asymmetric hysteretic behavior which has been seen in experiments.Comment: 4 pages, 3 figure

Surface Melting of the Vortex Lattice in Layered Superconductors: Density Functional Theory

We study the effects of an $ab$-surface on the vortex-solid to vortex-liquid transition in layered superconductors in the limit of vanishing inter-layer Josephson coupling. We derive the interaction between pancake vortices in a semi-infinite sample and adapt the density functional theory of freezing to this system. We obtain an effective one-component order-parameter theory which can be used to describe the effects of the surface on vortex-lattice melting. Due to the absence of protecting layers in the neighbourhood of the surface, the vortex lattice formed near the surface is more susceptible to thermal fluctuations. Depending on the value of the magnetic field, we predict either a continuous or a discontinuous surface melting transition. For intermediate values of the magnetic field, the surface melts continuously, assisting the formation of the liquid phase and suppressing hysteresis above the melting transition, a prediction consistent with experimental results. For very low and very high magnetic fields, the surface melts discontinuously. The two different surface melting scenarios are separated by two surface multicritical points, which we locate on the melting line.Comment: 16 pages, 12 figure

Optimization of hybrid sol-gel coating for dropwise condensation of pure steam

We developed hybrid organic-inorganic sol-gel silica coatings with good durability in harsh environment (high temperatures, high vapor velocities) and with slightly hydrophobic behavior, sufficient to promote dropwise condensation (DWC) of pure steam. DWC is a very promising mechanism in new trends of thermal management and power generation systems to enhance the heat transfer during condensation as compared to film-wise condensation (FWC). The sol-gel coatings have been prepared from methyl triethoxy silane (MTES) and tetraethyl-orthosilicate (TEOS) and deposited on an aluminum substrate. The coatings were optimized in terms of precursor ratio and annealing temperature highlighting potentials and limits of such mixtures. A comprehensive surface characterization before and after saturated steam condensation tests has been performed and related to the thermal measurements for evaluating the heat transfer augmentation as compared to FWC obtained on untreated aluminum surfaces. The results showed that the developed hybrid organic-inorganic sol-gel silica coatings are promising DWC promoters