2,706 research outputs found

    The Crystal Packing of 4,7-Dichloro- and 4,7-Dibromobenzo[C]Furazan 1-Oxide

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    The molecular structures of 4,7-dichlorobenzo[c]furazan 1-oxide, C6H2Cl2N2O2, (I), and 4,7-dibromobenzo[c]furazan 1-oxide, C6H2Br2N2O2, (II), are normal. Compound (I) occurs in two polymorphic forms. One polymorph contains one molecule in the asymmetric unit, organized into two-dimensional sheets involving intermolecular N...Cl and O...Cl interactions. The second polymorph has three molecules in the asymmetric unit, organized into two crystallographically different two-dimensional sheets with similar interactions. Compound (II) is isomorphous with the second polymorph of (I). The three two-dimensional sheets in the two polymorphs comprise a set of three two-dimensional polymorphic arrangements

    HIV Testing in the Context of HIV Stigma and Minority Stress

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    The HIV test is highly valued for its role in promoting personal health, aiding in HIV prevention, and enabling the epidemiological tracking of the virus. However, relatively few scholars have critically examined the social and cultural implications of testing practices (Scott, 2003). These implications are of particular concern because the groups targeted for testing (referred to as service priority groups) are marginalized communities, and have historically been further marginalized by many public health HIV prevention efforts (Waldby, 1996). This thesis examines the experience of receiving an HIV test from the perspective of individuals in service priority groups, which include gay, bisexual, and other men who have sex with men, trans people, African, Caribbean, and Black individuals, Indigenous communities, and people who use injection drugs. The study design and analysis is informed by HIV stigma theory (Parker & Aggleton, 2003) and minority stress theory (Meyer, 2003). Eighteen participants were interviewed following HIV testing and asked about their experiences receiving the test, and engaged in discussion about minority stress and HIV stigma. Analysis revealed that many participants found HIV testing to be stressful, and that this stress was related to being part of a “high risk” group. Individuals who had faced significant discrimination in their lives found the test more stressful than those who had experienced minimal discrimination. Additionally, those who held very negative opinions about HIV were more worried about the test compared to those for whom HIV was less stigmatized. Implications and recommendation for service providers and policymakers are discussed

    The Crystal Packing of 4,7-Dichloro- and 4,7-Dibromobenzo[C]Furazan 1-Oxide

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    The molecular structures of 4,7-dichlorobenzo[c]furazan 1-oxide, C6H2Cl2N2O2, (I), and 4,7-dibromobenzo[c]furazan 1-oxide, C6H2Br2N2O2, (II), are normal. Compound (I) occurs in two polymorphic forms. One polymorph contains one molecule in the asymmetric unit, organized into two-dimensional sheets involving intermolecular N...Cl and O...Cl interactions. The second polymorph has three molecules in the asymmetric unit, organized into two crystallographically different two-dimensional sheets with similar interactions. Compound (II) is isomorphous with the second polymorph of (I). The three two-dimensional sheets in the two polymorphs comprise a set of three two-dimensional polymorphic arrangements

    Applying the european convention on human rights to the conflict in Ukraine

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    The“annexation” of Crimea by the Russian Federation and the ongoing conflict in Eastern Ukraine have resulted in widespread human rights abuses. Both Ukraine and the Russian Federation are signatories to the European Convention on Human Rights and the Convention should apply within the territory and to the conflict. However, recent applications to the European Court of Human Rights reveal a great deal of confusion over which State bears responsibility for protecting human rights in different parts of Ukraine. This article seeks to shine a light on this problem presenting a deep analysis of the European Court of Human Rights’ jurisprudence and discussing how it applies to both the conflict in Eastern Ukraine and “annexed” Crimea. It addresses salient issues such as responsibility for the actions of non-state actors and armed groups in Eastern Ukraine and whether the legality of the “annexation” has any bearing on the human rights obligations of each State. The article presents a detailed critique of recent judgments from the European Court of Human Rights arguing that the jurisprudence of the Court has created a bewildering degree of complexity and uncertainty as to the obligations of each State and discussing the practical implications of this uncertainty.</jats:p

    Methyl reorientation in methylphenanthrenes. II. Solid-state proton spin-lattice relaxation in the 1-CH3, 9-CH3, and 1-CD3, 9-CH3 systems

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    We report proton Zeeman relaxation rates R as a function of temperature T at 8.5 and 53 MHz in polycrystalline 1,9-dimethylphenanthrene (1,9-DMP) and l-trideuteriomethyl-9-methylphenanthrene (1, 9-DMP[1-d3]). The data are interpreted using a Davidson-Cole spectral density for intramolecular reorientation and the implications of this are discussed. R vs T−1data for 1,9-DMP[1-d3] are used to determine the parameters that characterize the reorientation of the 9-methyl group. By assuming that the parameters characterizing the dynamics of the 9-methyl group are the same in 1,9-DMP and 1,9-DMP[1-d3], we subtract out the R vs T−1 contribution of the 9-methyl group in 1,9-DMP to determine the parameters that characterize the dynamics of the 1-methyl group. We find that the barrier for reorientation of the 9-methyl group is larger than the barrier for the 1-methyl group and this is discussed in terms of the various contributions to the barrier

    Methyl Reorientation in Methylphenanthrenes: 1. Solid-State Proton Spin-Lattice Relaxation in the 3-Methyl, 9-Methyl, and 3,9-Dimethyl Systems

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    We have investigated the dynamics of methyl group reorientation in solid methyl‐substituted phenanthrenes. The temperature dependence of the proton spin–lattice relaxation rates has been measured in polycrystalline 3‐methylphenanthrene (3‐MP), 9‐methylphenanthrene (9‐MP), and 3,9‐dimethylphenanthrene (3,9‐DMP) at Larmor frequencies of 8.50, 22.5, and 53.0 MHz. The data are interpreted using a Davidson–Cole spectral density which implies either that the correlation functions for intramolecular reorientation are nonexponential or that there is a distribution of exponential correlation times. Comparing the fitted parameters that characterize the relaxation data for the three molecules shows that the individual contributions to the relaxation rate from the 3‐ and 9‐methyls in 3,9‐DMP can be separated and that the parameters specifying each are similar to the equivalent group in the two single methylphenanthrenes. The 9‐methyl group is characterized by effective activation energies of 10.6±0.6 and 12.5±0.9 kJ/mol in 9‐MP and 3,9‐DMP, respectively, whereas the 3‐methyl group is characterized by effective activation energies of 5.2±0.8 and 5±1 kJ/mol in 3‐MP and 3,9‐DMP, respectively. The agreement between the fitted and calculated values of the spin–lattice interaction strength, assuming only intramethyl proton dipole–dipole interactions need be considered, is excellent. A comparison between experimentally determined correlation times and those calculated from a variety of very simple dynamical models is given, and the results suggest, as have several previous studies, that at high temperatures where tunneling plays no role, methyl reorientation is a simple, thermally activated, hopping process. We have also analyzed many published data in methyl‐substituted phenanthrenes, anthracenes, and naphthalenes (14 molecules) in the same way as we did for the phenanthrene data presented here, and a consistent picture for the dynamics of methyl reorientation emerges

    The Extrajudicial Voice

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    Judges communicate outside of the courtroom on a regular basis. They give speeches at universities and to societies; appear before select committees; write for a range of publications; and engage in both media and outreach activities. Existing literature has charted the value and perils of such extrajudicial communication. This paper contributes an explanation of what motivates judges towards such communication, and what shapes their discourse. The work draws on 13 semi-structured interviews with senior serving and recently judges, along with an extensive range of examples of judicial speech beyond the bench. It argues that extrajudicial communication is shaped by a shared conception amongst the judicial community of what is appropriate. This conception of propriety is principally motivated by a communal pursuit of sustaining public confidence in the judicial office. The conception also informs the limits of appropriate discourse and establishes the ramifications for breach
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