Empirical Modeling of the Relative Impacts of Various Sizes of Shopping Centers on the Values of Surrounding Residential Properties

This paper examines price differences of identical residential properties located around shopping centers of different sizes. Various models are tested for this purpose. The size of a shopping center is found to have a positive contributory effect on the values of surrounding residential properties as the variable "size of a shopping center" is found to be positive and significant in all models. The results indicate that the value of a residential property at a radial distance from the outer periphery of a larger shopping center is higher as compared to that of an otherwise identical residential property located at the same radial distance from the outer periphery of a smaller shopping center.

Extractive Separation of Rhenium by Complexation with Hexamine

88-90Rhenium(VII) has been separated from molybdenum(VI) and other metal ions by complexation with hexamine in hydrochloric acid solution in the presence of a reductant, extracting the complex thus formed into tribenzylamine-chloroform. The method is free from the interference from Mo(VI), W(VI), U(VI), Cr(III, VI), V(V), Fe(II), Co(II), Ni(II), Mn(II) and Pd(II)

Diagnosis of depression among adolescents – a clinical validation study of key questions and questionnaire

<p>Abstract</p> <p>Background</p> <p>The objective of the study is to improve general practitioners' diagnoses of adolescent depression. Major depression is ranked fourth in the worldwide disability impact.</p> <p>Method/Design</p> <p>Validation of 1) three key questions, 2) SCL-dep6, 3) SCL-10, 4) 9 other SCL questions and 5) WHO-5 in a clinical study among adolescents. The Composite International Diagnostic Interview (CIDI) is to be used as the gold standard interview. The project is a GP multicenter study to be conducted in both Norway and Denmark. Inclusion criteria are age (14–16) and fluency in the Norwegian and Danish language. A number of GPs will be recruited from both countries and at least 162 adolescents will be enrolled in the study from the patient lists of the GPs in each country, giving a total of at least 323 adolescent participants.</p> <p>Discussion</p> <p>The proportion of adolescents suffering from depressive disorders also seems to be increasing worldwide. Early interventions are known to reduce this illness. The earlier depression can be identified in adolescents, the greater the advantage. Therefore, we hope to find a suitable questionnaire that could be recommended for GPs.</p

Identifying risks for male street gang affiliation: a systematic review and narrative synthesis

Gang violence has increased in recent years. Individuals are becoming gang affiliated younger, and many have suffered historic maltreatment. Subsequent exposure to violence can result in profound consequences, including acute psychological harm. This review aims to identify predictive risk factors for male street gang affiliation. A systematic literature search was conducted utilising PsycINFO, PsycARTICLES, Medline, the Cochrane Central Register of Controlled Trials, the Cochrane Database of Systematic Reviews and the Social Policy and Practice databases (from the databases’ inception to 03/04/15). From this search, n=244 peer-reviewed papers were included in an initial scoping review, and n=102 thereafter met criteria for a systematic review; a narrative synthesis follows. Gang members have typically faced numerous historic adversities across multiple domains; individual, family, peers, school and community. Cumulative factors generated an independent risk. The meta-narrative described an overarching failure to safeguard vulnerable individuals, with the motivation for gang affiliation hypothetically arising from an attempt to have their basic needs met. Clinical and research recommendations were made to inform early intervention policy and practice

SARS-CoV-2 seroprevalence among a southern U.S. population indicates limited asymptomatic spread under physical distancing measures

Characterizing the asymptomatic spread of SARS-CoV-2 is important for understanding the COVID-19 pandemic. This study was aimed at determining asymptomatic spread of SARS-CoV-2 in a suburban, Southern U.S. population during a period of state restrictions and physical distancing mandates. This is one of the first published seroprevalence studies from North Carolina and included multicenter, primary care, and emergency care facilities serving a low-density, suburban and rural population since description of the North Carolina state index case introducing the SARS-CoV-2 respiratory pathogen to this population. To estimate point seroprevalence of SARS-CoV-2 among asymptomatic individuals over time, two cohort studies were examined. The first cohort study, named ScreenNC, was comprised of outpatient clinics, and the second cohort study, named ScreenNC2, was comprised of inpatients unrelated to COVID-19. Asymptomatic infection by SARS-CoV-2 (with no clinical symptoms) was examined using an Emergency Use Authorization (EUA)-approved antibody test (Abbott) for the presence of SARS-CoV-2 IgG. This assay as performed under CLIA had a reported specificity/sensitivity of 100%/99.6%. ScreenNC identified 24 out of 2,973 (0.8%) positive individuals among asymptomatic participants accessing health care during 28 April to 19 June 2020, which was increasing over time. A separate cohort, ScreenNC2, sampled from 3 March to 4 June 2020, identified 10 out of 1,449 (0.7%) positive participants. IMPORTANCE This study suggests limited but accelerating asymptomatic spread of SARS-CoV-2. Asymptomatic infections, like symptomatic infections, disproportionately affected vulnerable communities in this population, and seroprevalence was higher in African American participants than in White participants. The low, overall prevalence may reflect the success of shelter-in-place mandates at the time this study was performed and of maintaining effective physical distancing practices among suburban populations. Under these public health measures and aggressive case finding, outbreak clusters did not spread into the general population

Validation study of HSCL-10, HSCL-6, WHO-5 and 3-key questions in 14–16 year ethnic minority adolescents

Background There is a lack of validated instruments for detection of depression in ethnic minority adolescent patients in primary care. This study aimed to compare a subgroup of the bilingual, ethnic minority adolescents with the rest of the population using Hscl-10, Hscl-6, WHO-5 and 3-Key Questions for detection of depression in primary care. Method This is a cross-sectional, multicenter study conducted in General Practice in Norway and Denmark. A minor bilingual non-aggregated heterogenic ethnic minority group from non-European countries was compared with a major ethnic group of Norwegian/Danish adolescents. Participants completed questionnaires which were either mailed to them or found on our website. The Composite International Diagnostic Interview was used as gold standard. Depression classified by the International Classification of Diseases - 10. The Internal and external validity of the four questionnaires were examined. Optimal cut-off point for major depressive disorder was calculated using the Youden Index. Results 294 (77 %) were interviewed; mean age was 15 years. The ethnic group comprised 44 (64 % girls and 36 % boys). Chronbach’s alpha was above 0. 70 and area under curve was 0.80 or above for all instruments in the ethnic minority group. Cut-off points for major depressive disorder had sensitivities of 81 % (Hscl-10), 82 % (Hscl-6), 91 % (Who-5) and 81 % (3-key questions) in the ethnic minority group. Corresponding specificities were 80 % (Hscl-10), 77 % (Hscl-6), 80 % (Who-5) and 67 % (3-key questions). Cut-off points were the same Hscl-10, Who-5, the 3-key questions but differed for Hscl-6. Conclusion Hscl-10, Hscl-6, WHO-5 and 3-key questions seem to be valid instruments for detection of depression in bilingual, ethnic minority adolescents in primary care

An Improved Thiocyanate Method for the Determination of Rhenium

879-88

Separation & Determination of Rhenium by Extraction of Its Thiocyanate with Chloroform

637-63

Extractive Separation of Lower Valent Rhenium by Complexation with Ferron

894-89

IMECE2004-61743 EFFECT OF BOUNDARY CONDITIONS AND INITIAL CONCENTARTIONS ON THE SOLIDFICATION OF BINARY MIXTURE IN TRAPEZOIDAL CAVITY

ABSTRACT The solidification of binary mixture (NH 4 Cl-H 2 O) inside a trapezoidal cavity is investigated experimentally in this study. The experiments are carried out in a trapezoidal cavity measuring 65 mm x 130 mm x 150 mm with inclined angle of 69 0 . Solidification of ammonium chloride occurs on the left inclined copper wall held under constant heat rate condition while the other walls are maintained at adiabatic conditions. Particle image velocimetry was used in this study for visualization of the dynamic field during the solidification process. The temperatures of the solution inside the cavity and the boundary walls were measured by 32 thermocouples during the solidification process. Convective flow field, temperature distribution and frozen layer thickness were obtained for different initial concentrations of ammonium chloride varying from 0 to 19.8 % (sub-eutectic and near-eutectic growth) and various boundary conditions (T cold = -30 0 C to 0 0 C). The results obtained in the course of study reveal that (1) the solidification rate is higher during initial stages of the solidification process, (2) the process of solidification is slower with increase in the initial concentration levels of the ammonium chloride and (3) the initial concentration play a significant role in the evolution of convection flow patterns