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901.
Robert North 《后苏联事务》2013,29(3):228-231
A political scientist and specialist on Russian electoral and ethnic politics provides an explanation of machine politics in Russia's regions that accounts for the great variation in the power of these machines. The focus is on distinguishing among the economic and ethnic legacies of the Soviet period, the effects of the transition itself, and the impact of provincial leadership. As evidence, the author presents a historicalinterpretive examination of Russia's transition at the level of provincial politics as well as a statistical analysis of factors impacting the strength of regional machine candidates in the 1999 single-member-district Duma elections. 相似文献
902.
This research demonstrates the value of laser scanning confocal microscopy (LSCM) as a research tool in osteological studies, and diagenetic studies in particular. LSCM combines properties of light and scanning electron microscopy using laser light to excite fluorophores throughout the z-axis, developing a 3-D image. Using differential staining and selecting for specific wavelengths of light, one can image targeted materials. This research is divided into two parts: visualizing bone structures such as proteins and their decompositional products and visualizing diagenesis. Part one of this study utilized pig bones as a means of testing the overall ability of LSCM to fluoresce bone. Twenty-three samples were imaged, including 13 samples from a decompositional study conducted 5 years previous, and 10 “fresh” samples collected from a commercial butcher. This part of the study determined that protein and organic components of the bone could be fluoresced and diagenetic alteration could be imaged. The second part of the study used human samples as a means of imaging and mapping diagenetic alterations. The second part of the study used 13 samples, including 4 clinical, 7 ancient, and 2 modern controls. The pig study used Basic Fuchsin and SlowFade Gold stains, while the human study used toluidine blue. Images were also taken with unstained elements. The results of the non-human study found that a fresh bone fluoresced differently than that of a 5-year subset, while the results of the human study confirmed these findings and determined that the bone diagenesis can be mapped using LSCM. 相似文献
903.
Christina Mancini Amy K. Cook Jessica C. Smith Robyn McDougle 《Journal of school violence》2020,19(4):610-622
ABSTRACT Recently, states have enacted teacher-carry laws. While controversial, little scholarship has tapped public attitudes toward such reforms. Because public opinion shapes policy, the public is an important stakeholder in this debate. Thus, we investigated three questions. First, how supportive is the public of arming teachers? Second, what demographic and social divides exist, if any, for reform approval? Finally, do crime-related perceptions, concerning views about public safety, and criminogenic influences shape policy preferences? We test these questions using a 2018 poll of Virginia residents (N = 521). Overall, approval for teacher-carry is split. Crime-related perceptions mediate some of the initial social and demographic divides in opinion but other correlates, such as parental status, remain salient predictors of views. Implications are discussed. 相似文献
904.
905.
From an economist's perspective, the fiscal and administrativegoals of the so-called "devolution revolution" include lessfederal intergovernmental aid, especially if fiscally equalizing;the substitution of block grants for matching grants; greateradministrative flexibility for the states; and fewer underfundedmandates. This article uses these devolulionary yardsticks toanalyze the major provisions of the federal Balanced BudgetAct of 1997. These provisions fall far short of a "devolutionrevolution." The act increases the level of federal assistance,leaves Medicaid as an open-ended entitlement, and preservesa strong role for the federal government in shaping intergovernmentalgrants. The article discusses the political forces moderatingthe act's devolutionary impact. 相似文献
906.
Robert Lawrence Kuhn 《北京周报(英文版)》2021,64(39):22-23
I have been coming to China for more than 30 years. I have traveled all across the country,visiting over 100 cities together with my long-term partner, Adam Zhu, for research and interviews, books and essays, television and documentaries. I have given much thought, over the years, as to what has brought about China's develop-mental miracle.
The underlying principles
One, a people who work hard to im-prove the lives of their families and the destiny of their country. 相似文献
907.
908.
Evaluating the discriminating power of amino acid ratios on distinguishing dark colored hair samples
Timothy Yaroshuk MS Robert H. Powers PhD Alyssa L. M. Marsico PhD 《Journal of forensic sciences》2023,68(2):416-424
Human hairs are one of the most commonly encountered items of trace evidence. Currently, conventional methods for hair analysis include microscopic comparison and DNA analysis (nuclear and mitochondrial). Each approach has its own drawbacks. Hair proteins are stable and offer an alternative to DNA testing, as demonstrated with proteomics for distinguishing humans. However, proteomics is complicated and requires identifying peptides to remain intact following harsh sample preparation methods. Alternatively, the actual amino acid content of a hair sample may also offer important identifying information and actually requires proteins and peptides to be broken down completely rather than remaining intact. This study evaluated the discriminating power of using hair amino acid ratios to differentiate hair samples from 10 unrelated individuals with dark colored hair. Hair proteins were digested, derivatized, and analyzed using gas chromatography–mass spectrometry. Amino acid ratios were calculated for each individual and comparisons using ANOVA and post-hoc pairwise t-test with Bonferroni correction were made with amino acid ratios for individuals. Overall, out of the 45 possible pairwise comparisons between all hair samples, 38 (84%) were differentiable. Out of the 36 possible pairwise comparisons between brown haired individuals, 32 (89%) were considered differentiable using univariate statistics. Multivariate statistics were also attempted but, overall, univariate models were sufficient for exclusionary purposes. These results indicate that amino acid ratio analysis can potentially be used as an exclusionary method using hair if DNA analysis cannot be performed, or to corroborate conclusions made following microscopic analysis. 相似文献
909.
Courts frequently rely on parenting capacity assessments to make decisions about visitation and case progress in child protection court. Although these evaluations can provide valuable information to courts, they often involve assessing areas of human behavior that are not clearly defined in the literature. For example, mental health professionals are often tasked with identifying risk and protective factors for child maltreatment while identifying factors that can impede progress towards reunification. Although some of these factors may be easy to identify and assess (e.g., symptoms of mental illness or substance abuse), others may be more challenging. For example, factors such as denial and minimization about risk factors and maltreatment, a parent(s)’ ability to protect their child(ren) from future incidents of maltreatment, the parent(s)’ potential for change, and the consideration of what is in the best interest of the child are hard to assess. This article will provide a summary of the research in these areas, provide tips for managing these areas, and highlight directions for future investigation that will help inform parenting capacity assessments in child protection court. 相似文献
910.