A Study of the Presence of Gunshot Residue in Pittsburgh Police Stations using SEM/EDS and LC‐MS/MS

Due to possible secondary transfer of gunshot residue (GSR) onto a suspect in police custody prior to sampling, a baseline must be created for the amount of GSR present. With an increase of “lead free” ammunition, testing for both gunpowder and primer GSR is relevant. Seventy samples were collected using carbon‐coated adhesive stubs from four Pittsburgh Police Stations and vehicles to investigate these locations as sources of secondary GSR contamination. These seventy samples were analyzed for primer GSR using scanning electron microscopy‐energy‐dispersive X‐ray spectrometry. One primer GSR particle was detected; no sample was classified as positive for primer GSR. These same samples were then analyzed for gunpowder GSR using liquid chromatography coupled to tandem mass spectrometry to test for akardite II, ethylcentralite, diphenylamine, N‐nitrosodiphenylamine, 2‐nitrodiphenylamine, and 4‐nitrodiphenylamine. Ethylcentralite was quantifiable in two test samples. These results suggest there is a negligible potential for secondary transfer of primer and gunpowder GSR.     

Police Personnel Affective Profiles: Differences in Perceptions of the Work Climate and Motivation

The affective profile model was used to investigate individual differences in police personnel perceptions about the working climate and its influences on motivation. The Positive Affect, Negative Affect Schedule (PANAS) was used to assign police personnel, sworn and non-sworn (N = 595), to four affective profiles: self-fulfilling, low affective, high affective, and self-destructive. The work climate was assessed using the Learning Climate Questionnaire (Management Relations and Style, Time, Autonomy and Responsibility, Team Style, Opportunities to Develop, Guidelines on How to do the Job, and Contentedness). Motivation was evaluated using a modified version (to refer specifically to the individual’s work situation) of the Situational Motivation Scale (intrinsic motivation, external regulation, identified regulation, and amotivation). Self-fulfilling individuals scored higher on all work climate dimensions compared to the other three groups. Compared to low positive affect profiles, individuals with profiles of high positive affect scored higher in intrinsic motivation and identified regulation. Self-destructive individuals scored higher in amotivation. Different aspects of the work climate were related to each motivation dimension among affective profiles. Police personnel may react to their work environment depending on their affective profile. Moreover, the extent to which the work influences police personnel’s motivation is also related to the affective profile of the individual.     

Examining the Interplay of Justice Perceptions,Motivation, and School Achievement among Secondary School Students

There is a paucity of empirical research on the social psychology of justice in educational settings. A few previous studies have predominantly focused on distributive and procedural justice concerns, and knowledge about the role of what have been called informational and interpersonal justice for school outcomes is very scarce. In the present study, data from 227 eighth- and ninth-grade students who participated in a survey study were analyzed to examine the interplay between relational justice concerns (decomposed into procedural, interpersonal, and informational justice), motivation to study, and school achievement. A comprehensive theoretically grounded multi-item measure of informational justice was developed and validated. The results showed that informational justice significantly predicts school grades, and that motivation to study fully mediates this effect. Neither procedural nor interpersonal justice was associated with school grades. The implications of these results for research and practice are discussed in detail.     

Thermal requirements of immature stages of Chrysomya albiceps (Diptera: Calliphoridae) as a common forensically important fly

Entomological material may be used to estimate the time since death occurred (postmortem interval, PMI) in forensically obscure cases. The method that is commonly used to calculate minimum post-mortem interval (mPMI, i.e., the least amount of time since one can be confident death occurred) is based on the relationship between insect development and ambient temerature. Isomegalen and isomorphen diagrams are among methods allowing to calculate the age of necorphagous insects, yet thermal summation models provide the most precise and acurate estimations. The digrams are prepared based on the length or the developmental stages of the larvae as a function of time and mean ambient temperature. A knowledge of thermal requirements, in particular lower temperature threshold (D_z) at which development of a species terminates, is of essential importance to calculate ADD (Accumulated Degree Days). In this study different temperature regimes were used to construct the isomorphen diagram, examinate changes in larval body length at different ambient temperatures and to estimate the thermal requirements for developemnt of Chrysomya albiceps, the most common dipteran species reported on human and animal cadavers in Iran. Six development events including hatching, 1st ecdysis, 2nd ecdysis, wandering, pupariation and eclosion were studied under eleven constant temperature regims (17–37 ⁰C). The development rate of Ch. albiceps increased as temperature increased. The larval length peaked at the end of third stage and then decreased at wandering stage. The maximum larval length occurred at 72 h post oviposition at either 31, 33, or 35 °C. At 17 °C, larvae did not hatch from eggs and at 37 °C wandering larvae did not proceed to pupariation, and thus larval development were analysed at the nine left over temperatures. The development stages required at least (D_z ± SE) 13.04 ± 0.37, 14.29 ± 0.45, 15.69 ± 0.56, 15.18 ± 0.56, 14.94 ± 0.48, and 11.23 ± 0.41 °C to reach one of the successive developmentl events, respectively. The estimated thermal summation constant (k) for those the six events were 10.43 ± 0.27, 19.31 ± 0.32, 27.87 ± 1.3, 55.94 ± 1.82, 66.69 ± 3.5, and 143.52 ± 5.61 ADD accordingly.     

Are devaluations contractionary in emerging economies of Eastern Europe?

In most developing countries currency depreciation is said to be contractionary. This is because depreciation reduces the aggregate supply more than it increases the aggregate demand. However, emerging European economies have received no attention so far, mostly due to unavailability of data. Now that enough time-series data are available, we try to fill the gap by investigating the impact of real depreciation in effective exchange rates of Belarus, Czech Republic, Estonia, Hungary, Latvia, Lithuania, Poland, Russia, and Slovak Republic on their domestic output. We find that in the short run real depreciation is expansionary in Belarus, Latvia, Poland, and Slovak Republic; contractionary in Czech Republic, Estonia, Hungary, and Russia; and has no effect in Lithuania. In almost none of the countries, the short-run effects last into the long run.

Health awareness of rural households towards COVID-19 pandemic in India: Evidence from Rural Impact Survey of the World Bank

This paper aims at analysing the level of awareness of the symptoms and the methods of protection from COVID-19 based on the Rural Impact Survey of the World Bank, collected from 5200 households belonging to six states in India that is, Andhra Pradesh, Bihar, Jharkhand, Madhya Pradesh, Rajasthan, and Uttar Pradesh. Data has been analysed using chi-square test and regression analysis. Results of the analysis indicate that about 70.8% rural households are aware of the symptom of coronavirus, and 81.9% are aware of the preventive measures for controlling the spread of COVID-19. Analysis indicates a significant association between awareness level on symptoms and prevention of COVID-19 and socio-demographics and location. The study further analyses the key determinants of awareness of COVID-19 symptoms and preventive measures using the logistics regression model, indicating that age, gender, education, income, poverty status, access to information, cash relief and medical services are the determining factors of health awareness on COVID-19 pandemic among rural households in India. Considering the importance of self-protecting measures in fighting the pandemic, this paper highlights the importance of strengthening public awareness for containing the spread of the COVID-19 pandemic.     

Institutional quality and economic growth: Evidence from South-Asian countries

The current study investigates the relationship between institutional quality and economic growth, focusing on South-Asian countries entailing Bangladesh, Bhutan, India, Nepal, Pakistan, and Sri Lanka, from 2002 to 2018. The data are analysed using the dynamic heterogeneous panel (panel autoregressive distributed lag [ARDL] model) approach, specifically the dynamic fixed effect (DFE), mean group (MG), and pooled mean group (PMG). Based on the findings, the three governance indicators, namely corruption control, accountability, and the rule of law, positively and significantly affect economic growth. All the nations have consistent long-run estimates but varied short-run estimates and adjustment speed for the long-term equilibrium. This is due to governance volatility that is evident in all the nations. This article offers both practical and theoretical contributions. This article contributes to the institutional quality and economic growth literature from a theoretical perspective from the South-Asian perspective. From a practical perspective, the study findings are significant for policymakers, particularly those from the countries that demonstrate major fiscal and external imbalance due to war and terrorism, low oil prices and weak trade. Hence, there is a pressing need to address economic growth issues instigated by the policymakers' negligence to ensure appropriate governance and macroeconomic management. Regulators can improve economic growth through national and regional image building by developing a stable economic and political landscape and maintaining macroeconomic stability by improving the institutional quality indicators. There is evidence that institutional quality improvement leads to better economic growth.     

The Kurds in Iraq

The following briefs are edited versions of papers presented at the annual meeting of the Middle East Studies Association in Anchorage, Alaska, November 8, 2003. The editors were Hakan Yavuz and Michael Gunter, whose papers are included below. Why Kurdish Statehood is Unlikely , Michael M. Gunter, professor of political science, Tennessee Technological University, Cookeville, Tennessee Transnational Networks: New Opportunities and Constraints for Kurdish Statehood , Denise Natali, visiting research fellow, Washington Kurdish Institute (WKI); director of WKI's transnational project Turkey and Kurdistan‐Iraq, 2003 , Robert Olson, professor of Middle East and Islamic history, University of Kentucky Could a Kurdish State Be Set Up in Iraq? , Nihat Ali Özcan, author of PKK (Kurdistan ýpçi Partisi) Tarihi, Ideolojisi ve Yönetimi (Ankara: Asam, 1999) Kurdish Reality in an Emerging Iraq , Khaled Salih, University of Southern Denmark Provincial Not Ethnic Federalism in Iraq , M. Hakan Yavuz, associate professor of political science, University of Utah