cssi/SciSciGPT-SciSciNet huggingface dataset:
Impact of the National Network of Libraries of Medicine, South Central Region, express outreach awards 2011-2013

Annually, the National Library of Medicine (NLM) funds Express Outreach projects in eight US regions to improve public and professional access to NLM databases. In 2000, NLM published Measuring the Difference: Guide to Planning and Evaluating Health Information Outreach (Burroughs and Wood, 2000) to guide outreach award recipients in effective planning, implementation, evaluation, and outcome reporting that would document project value and improve reproducibility. The National Network/Library of Medicine, South Central Region funded 11 Express Outreach projects, 2011-2013, and was charged with assessing outcome reporting improvement for these projects. Using content analysis of interim/final reports and semi-structured interviews with project managers to validate data, authors evaluated outcome reporting against Measuring the Difference (Burroughs and Wood, 2000) guidelines to assess reporting status. The publication of these general guidelines was inadequate for the funding organisation to obtain the desired outcome reporting by Outreach Award recipients. The assessment identified the need to provide and require a standard, highly structured, and measureable outcome reporting format for awardees to obtain the desired improvement in outcome reporting.
Copper (II) complexes possessing alkyl-substituted polypyridyl ligands: Structural characterization and in vitro antitumor activity

Abstract In an effort to find alternatives to the antitumor drug cisplatin, a series of copper (II) complexes possessing alkyl-substituted polypyridyl ligands have been synthesized. Eight new complexes are reported herein: μ-dichloro-bis{2,9-di-sec-butyl-1,10-phenanthrolinechlorocopper(II)} {[(di-sec-butylphen)ClCu(μ-Cl)2CuCl(di-sec-butylphen)]}(1), 2-sec-butyl-1,10-phenanthrolinedichlorocopper(II) {[mono-sec-butylphen) CuCl2} (2), 2,9-di-n-butyl-1,10-phenanthrolinedichlorocopper(II) {[di-n-butylphen) CuCl2}(3), 2-n-butyl-1,10-phenanthrolinedichlorocopper(II) {[mono-n-butylphen) CuCl2} (4), 2,9-di-methyl-1,10-phenanthrolineaquadichlorocopper(II) {[di-methylphen) Cu(H2O)Cl2}(5), μ-dichloro-bis{6-sec-butyl-2,2′-bipyridinedichlorocopper(II)} {(mono-sec-butylbipy) ClCu(μ-Cl)2CuCl(mono-sec-butylbipy)} (6), 6,6′-di-methyl-2,2′-bipyridinedichlorocopper(II) {6,6′-di-methylbipy) CuCl2} (7), and 4,4′-dimethyl-2,2′-bipyridinedichlorocopper(II) {4,4′-di-methylbipy) CuCl2} (8). These complexes have been characterized via elemental analysis, UV–vis spectroscopy, and mass spectrometry. Single crystal X-ray diffraction experiments revealed the complexes synthesized with the di-sec-butylphen ligand (1) and mono-sec-butylbipy ligand (6) crystallized as dimers in which two copper(II) centers are bridged by two chloride ligands. Conversely, complexes 2, 7, and 8 were isolated as monomeric species possessing distorted tetrahedral geometries, and the [(di-methylphen)Cu(H2O)Cl2] (5) complex was isolated as a distorted square pyramidal monomer possessing a coordinating aqua ligand. Compounds 1–8 were evaluated for their in vitro antitumor efficacy. Compounds 1, 5, and 7 in particular were found to exhibit remarkable activity against human derived lung cancer cells, yet this class of copper(II) compounds had minimal cytotoxic effect on non-cancerous cells. In vitro control experiments indicate the activity of the copper(II) complexes most likely does not arise from the formation of CuCl2 and free polypyridyl ligand, and preliminary solution state studies suggest these compounds are generally stable in biological buffer. The results presented herein suggest further development of this class of copper-based drugs as potential anti-cancer therapies should be pursued.
Mouse Sensitization and Exposure Are Associated with Asthma Severity in Urban Children

Background Mouse sensitization and exposure are associated with uncontrolled asthma, but whether they are associated with asthma severity, an intrinsic disease characteristic and long-term outcome predictor, is unclear. Objective To examine relationships between mouse sensitization and/or exposure and asthma severity in urban children. Methods A total of 645 children (5-17 years) with uncontrolled asthma underwent mouse sensitization evaluation. Sensitized children had mouse allergen measured in bedroom dust. Relationships between mouse sensitization, allergen levels, and asthma severity measures (treatment step and Composite Asthma Severity Index [CASI]) were examined using regression models adjusted for age, sex, atopy, study site, race, ethnicity, and insurance. Results The study population was predominantly minority (69.6% black, 20.8% Hispanic), low income (61.8%), and mouse sensitized (54.4%). Mean ± SD treatment step was 3.2 ± 1.6, equivalent to medium-dose inhaled corticosteroid. Mean ± SD CASI was 6.5 ± 3.4, reflecting moderate persistent asthma. Mouse sensitization was associated with higher treatment step (3.5 vs 2.9, mouse-sensitized vs nonsensitized, P β [95% CI], 0.36 [0.07-0.64]; P = .01). Mouse sensitization was associated independently with CASI ( β [95% CI], 0.82 [0.16-1.47]; P = .02). Among mouse-sensitized participants, higher bedroom floor and bed Mus m 1 were independently associated with treatment step ( β [95% CI], 0.26 [0.09-0.43]; P = .002 and β [95% CI], 0.22 [0.01-0.43]; P = .04), respectively. Higher bedroom floor Mus m 1 was independently associated with CASI ( β [95% CI], 0.43 [0.05-0.81]; P = .03). Conclusions Mouse sensitization and exposure are associated with asthma severity, among low-income, minority children. Further studies are needed to determine whether reducing allergen exposure among mouse-sensitized patients with asthma can reduce severity, ultimately altering childhood asthma natural history.
Native American studies: a place of community:

Native American Studies at the University of New Mexico in the USA aims to practice a pedagogy of community, which facilitates students’ engagement and contribution to community. I first examine Na...
Electronic structure of RSb (R = Y, Ce, Gd, Dy, Ho, Tm, Lu) studied by angle-resolved photoemission spectroscopy

We use high-resolution angle-resolved photoemission spectroscopy (ARPES) and electronic structure calculations to study the electronic properties of rare-earth monoantimonides RSb (R = Y, Ce, Gd, Dy, Ho, Tm, Lu). The experimentally measured Fermi surface (FS) of RSb consists of at least two concentric hole pockets at the $\mathrm{\ensuremath{\Gamma}}$ point and two intersecting electron pockets at the $X$ point. These data agree relatively well with the electronic structure calculations. Detailed photon energy dependence measurements using both synchrotron and laser ARPES systems indicate that there is at least one Fermi surface sheet with strong three-dimensionality centered at the $\mathrm{\ensuremath{\Gamma}}$ point. Due to the ``lanthanide contraction'', the unit cell of different rare-earth monoantimonides shrinks when changing the rare-earth ion from CeSb to LuSb. This results in the differences in the chemical potentials in these compounds, which are demonstrated by both ARPES measurements and electronic structure calculations. Interestingly, in CeSb, the intersecting electron pockets at the $X$ point seem to be touching the valence bands, forming a fourfold-degenerate Dirac-like feature. On the other hand, the remaining rare-earth monoantimonides show significant gaps between the upper and lower bands at the $X$ point. Furthermore, similar to the previously reported results of LaBi, a Dirac-like structure was observed at the $\mathrm{\ensuremath{\Gamma}}$ point in YSb, CeSb, and GdSb, compounds showing relatively high magnetoresistance. This Dirac-like structure may contribute to the unusually large magnetoresistance in these compounds.
Providing Pediatric Palliative Care Education Using Problem-Based Learning.

Abstract Background: The Institute of Medicine and the American Academy of Pediatrics has called for improvement in education and training of pediatricians in pediatric palliative care (PPC). Given the shortage of PPC physicians and the immediate need for PPC medical education, this study reports the outcomes of a problem-based learning (PBL) module facilitated by academic general and subspecialty pediatric faculty (non-PPC specialists) to third year medical students. Objectives/Setting: To test the effectiveness of a PPC-PBL module on third year medical students' and pediatric faculty's declarative knowledge, attitudes toward, perceived exposure, and self-assessed competency in PPC objectives. Design: A PBL module was developed using three PPC learning objectives as a framework: define core concepts in palliative care; list the components of a total pain assessment; and describe key principles in establishing therapeutic relationships with patients. A PPC physician and nurse practitioner guided pediatric...
Most Frequently Cited Sources, Articles, and Authors in Industrial-Organizational Psychology Textbooks: Implications for the Science–Practice Divide, Scholarly Impact, and the Future of the Field

Most future industrial and organizational (I-O) psychology practitioners and researchers initially enroll in an introductory I-O psychology course during their junior or senior year of undergraduate studies, making introductory textbooks their first in-depth exposure to the field and an important knowledge base. We reviewed and analyzed the 6,654 unique items (e.g., journal articles, book chapters) published in 1,682 unique sources (e.g., scholarly journals, edited books, popular press publications) and authored by 8,603 unique individuals cited in six popular I-O psychology textbooks. Results showed that 39% of the top-cited sources are not traditional academic peer-reviewed journals, 77% of the top-cited articles were published in cross-disciplinary journals, and 58% of the top-cited authors are affiliated with business schools and not psychology departments. These results suggest that the science–practice divide in I-O psychology may develop later—perhaps after graduates obtain employment as either practitioners or researchers. Also, results suggest I-O psychology is closer to business and management than social psychology and psychology in general. We discuss additional implications for the science–practice divide, how to define and measure scholarly impact, and the future of I-O psychology as a field, including the movement of I-O psychologists to business schools and the sustainability of I-O psychology programs in psychology departments.
Introduction to The Story of the Chinese Eastern Railway

Mr. George E. Sokolsky has done a great service to the reading public, Chinese as well as foreign, by giving us the first connected story of the Chinese Eastern Railway.1 There is, as far as I am aware, no book in any language which tells this story from an impartial and unbiased standpoint.
The hyperbolic plane, three-body problems, and Mnëv’s universality theorem

We show how to construct the hyperbolic plane with its geodesic flow as the reduction of a three-problem whose potential is proportional to I/Δ2 where I is the moment of inertia of this triangle whose vertices are the locations of the three bodies and Δ is its area. The reduction method follows [11]. Reduction by scaling is only possible because the potential is homogeneous of degree −2. In trying to extend the assertion of hyperbolicity to the analogous family of planar N-body problems with three-body interaction potentials we run into Mn¨ev’s astounding universality theorem which implies that the extended assertion is doomed to fail.
Kinetic control of inorganic solid-state reactions resulting from mechanistic studies using elementally modulated reactants

Publisher Summary Several methods have been used to increase solid-state reaction rates by overcoming the inherently slow interdiffusion rates for atoms through solids. Given the Arrhenius expression for the diffusion rate, the most straightforward way to increase diffusion rates is to raise reaction temperatures. This approach typically results in the formation of the thermodynamically most stable mix of products. In vapor phase transport reactions, selected chemical reagents enable otherwise nonvolatile products or reactants to be moved along an activity (or temperature) gradient at temperatures well below that required for direct volatilization. A third approach to decrease the synthetic difficulties associated with slow solid-state diffusion rates has been to shorten the necessary diffusion distances by preparing molecular or solid-state precursors that contain an intimate mix of the desired elements. One of the distinct challenges associated with each of these synthetic approaches is the difficulty in following the progress of the reactions. Several techniques have been suggested as potential ways to achieve this control. The amorphous intermediate could be "seeded" with crystallites of the desired structure, templating the crystallization of the amorphous intermediate. A second goal is to develop techniques to control the nucleation density. Rapid thermal annealing of the wafer to high temperatures for a short period of time followed by low temperature annealing might be an avenue to control nucleation density by the period of the high-temperature anneal. A third area of exploration is the use of other deposition techniques as well as code position for preparing amorphous reaction intermediates.
Characterizations of mixed binary convex quadratic representable sets

Representability results play a fundamental role in optimization since they provide characterizations of the feasible sets that arise from optimization problems. In this paper we study the sets that appear in the feasibility version of mixed binary convex quadratic optimization problems. We provide a complete characterization of the sets that can be obtained as the projection of such feasible regions. In order to obtain this result, we first provide a complete characterization of these sets in the special cases where (1) the feasible region is bounded, (2) only binary extended variables are present, and (3) only continuous variables are present.
Acetate Kinase and Phosphotransacetylase

Most of the methane produced in nature derives from the methyl group of acetate, the major end product of anaerobes decomposing complex plant material. The acetate is derived from the metabolic intermediate acetyl-CoA via the combined activities of phosphotransacetylase and acetate kinase. In Methanosarcina species, the enzymes function in the reverse direction to activate acetate to acetyl-CoA prior to cleavage into a methyl and carbonyl group of which the latter is oxidized providing electrons for reduction of the former to methane. Thus, phosphotransacetylase and acetate kinase have a central role in the conversion of complex organic matter to methane by anaerobic microbial food chains. Both enzymes have been purified from Methanosarcina thermophila and characterized. Both enzymes from M. thermophila have also been produced in Escherichia coli permitting crystal structures and amino acid variants, the kinetic and biochemical studies of which have lead to proposals for catalytic mechanisms. The high identity of both enzymes to paralogs in the domain Bacteria suggests ancient origins and common mechanisms.
Institutional Development, Ownership Structure, and Business Strategies: A New Era in the Chinese Banking Industry

This chapter traces the structural changes in the Chinese banking industry since the 1990s and explores the role of governance in influencing the banking strategies and performance of local financial institutions. Specifically, the chapter focuses on the increasing openness to foreign ownership in local banks, the asset–liability and geographical diversification strategies undertaken by the financial institutions during these deregulatory and changing environments, and the institutional developments in the economy. Finally, the chapter links these changes with bank performance. The evidence suggests that banks with minority foreign ownership are associated with better performance, all types of diversification – captured in four dimensions: loans, deposits, assets, and geography – are associated with reduced profits and higher costs, while banks with minority foreign ownership are associated with fewer diseconomies of diversification, suggesting that foreign ownership plays an important mitigating role. We also observe a significant impact from institutional developments; gradual dominance of the market economy, growth of the private sector, and establishment of secure property rights and rule of law are important factors associated with higher bank performance.
Design and Reporting Characteristics of Clinical Trials of Select Chronic and Recurrent Pediatric Pain Conditions: An Analgesic, Anesthetic, and Addiction Clinical Trial Translations, Innovations, Opportunities, and Networks Systematic Review.

Fewer randomized clinical trials (RCTs) are conducted for chronic or recurrent pain in pediatric populations compared with adult populations; thus, data to support treatment efficacy in children are limited. This article evaluates the design features and reporting practices of RCTs for chronic and recurrent pain that are likely unique to, or particularly important in, a pediatric population to promote improvements in the evidence base for pediatric pain treatments. Areas covered include outcome measure selection and reporting and reporting of adverse events and challenges to recruitment and retention. A search of PubMed and EMBASE identified primary publications describing RCTs of treatments for select chronic and recurrent pain conditions in children or adolescents published between 2000 and 2017. Only 49% of articles identified a primary outcome measure. The primary outcome measure assessed pain intensity in 38% of the trials, specifically measure by verbal rating scale (13%), faces pain scale (11%), visual analogue scale (9%), or numeric rating scale (5%). All of the CONSORT harms reporting recommendations were fulfilled by 10%. The goal of this article is to promote comprehensive reporting of pediatric pain RCTs to improve the design of future trials, facilitate conduction of systematic reviews and meta-analyses, and better inform clinical practice. PERSPECTIVE: This review of chronic and recurrent pediatric pain trials demonstrates inadequacies in the reporting quality of key features specifically important to pediatric populations. It provides recommendations that address these shortcomings to promote continued efforts toward improving the quality of the design and publication of future pediatric clinical pain trials.
An Alternative Method to Using a Mandibulometer

Mandibular length, mandibular angle, and maximum ramus height measurements used during forensic evaluation of skeletalremains require use of a mandibulometer. This study presents a new method of taking these measurements from images, so that practitionerswithout access to an expensive mandibulometer or those working with 3D models (e.g., CT scans) can collect and utilize these measurements.Ten trials performed on a sample of 45 mandibles were used to compare measurements collected from photographs and images extracted from3D surface scans to those collected with a mandibulometer, including intra- and inter-observer analyses. All technical error of measurement(TEM) values were less than 2 mm regardless of observer, trial, or method. Relative TEM values were less than 2% for all except mandibularlength (2.10%) and ramus height (2.32%) for the right versus left photographs. Results are comparable with mandibulometer error rates,indicating that the proposed method is accurate and reliable.
Nanoscale fracture mechanics of Gondwana coal

Abstract Understanding coal's mechanical failure properties in the nano-to-micro scale is required to design safe and cost-efficient mining, hydraulic stimulation, and CO2 sequestration in coal seams. We propose a model to estimate the fracture toughness of coal based on nanoindentation. We use the brittle failure theory and fracturing-induced pop-in events in the loading curve to estimate the fracture energy and the fracture surface area. We conduct indentation studies on the Gondwana coal samples from India to validate our model. We use the model results to characterize the multiphase and multiscale nature of heterogeneity in the mechanical properties of Gondwana coal.
Verification of Data Completeness and Accuracy

Complete and accurate data is the backbone of any database. Rigorous, objective, and transparent verification processes are vital to establishing and maintaining high quality data. In the absence of such processes, a database cannot be relied upon to properly inform database participants and users. Data about outcomes occupy an increasingly pivotal role in decisions that impact quality of care, professional reputation, reimbursement, and health care policy, to name a few. These developments underscore the importance of robust data verification processes. Data verification may be accomplished using several means, including on site visits and remote source document verification. The emergence of central statistical verification techniques using adaptive or triggered monitoring in real time is an important development. This approach to data verification has the potential of significantly improving both the volume and quality of verified data as well as limiting the resource utilization impact on databases and their participants.
Government Health and Social Services Spending Show Evidence of Single-Sector Rather Than Multi-Sector Pursuit of Population Health:

Population health improvements can be achieved through work made possible by government spending on health care, public health, and social services. The extent to which spending allocations across these sectors is synergistic with or trade-off against one another is unknown. Achieving a balanced portfolio with multi-sector contributions is key to improving health outcomes. This study tested competing hypotheses regarding achievement of balanced multi-sector resources for health. County-level U.S. Census Bureau data on all local governmental spending measured each county's average per capita local government spending for public hospitals, public health, social services, and education. American Hospital Association (AHA) Annual Survey data on hospital community health service provision were used to calculate an index of hospital community service provision aggregated to county level by year. County Health Rankings data measured each county's health outcomes and health factors. Longitudinal mixed-effects regression models (n = 1877 counties) predicted changes in spending for each government spending category based on two sets of predictors (government spending vs community health services and needs) from current and prior year. Models account for average spending in each category and county-, state-, and time-trends. Models showed that spending increases in each of the four spending categories examined (public hospitals, public health, social services, and education) were not associated with changes in spending across other categories in current or prior years. For all categories, an increase from baseline spending levels in Year 1 was always significantly associated with an increase from baseline spending level in that same category in Year 2 (ie, spending stayed above baseline in Year 2). Multi-sector initiatives to health outcomes require funding across sectors, yet there was little evidence to suggest that communities that invest in public hospitals, public health, or other social services see commensurate increases in other areas. Underlying funding decisions may reflect strategic decisions within a community to scale up single sectors, constrained resources for multi-sector scale up, or a host of additional factors not measured here.
Dynamical stability analysis of MDOF real-time hybrid system

Abstract Real-time hybrid simulation is an advanced testing methodology to evaluate structural responses under realistic operating conditions. Typically, the real-time hybrid system uses actuation and control system to apply load and motion boundary conditions on the experimental substructure. The inherent system dynamics present phase lags, in addition to the communication delays, that both cause negative damping in the real-time hybrid system. In this study, the dynamic equation of motion is derived for a generalized multiple-degree-of-freedom hybrid system. The negative damping effect is quantified, which depends not only on the actuator motion control performance, but also more importantly on the partition between the numerical and experimental substructures (i.e. how the stiffness and mass are assumed in both substructures). It is demonstrated the worst-case hybrid substructure partition may have very narrow stability margin in its tolerance of any system delay. The proposed equation of motion gains system level understanding of any arbitrary hybrid substructure partition; thus allow both frequency domain system analysis and time domain evaluation. The benchmark problem is studied to validate the proposed equation of motion compared with the virtual testing method, both approaches show excellent correlation. These pre-testing assessments could establish quantitative predictive measures about the system stability limit and performance criteria. Thus they are very important in the early design stage of a feasible real-time hybrid implementation, help reduce the risks of unintended physical testing responses.
Long-term Reoperation Rate for Cubital Tunnel Syndrome: Subcutaneous Transposition Versus In Situ Decompression:

Background: The purpose of this study was to compare the long-term revision rate of in situ ulnar nerve decompression with anterior subcutaneous transposition surgery for idiopathic cubital tunnel syndrome. Methods: This retrospective, multicenter, cohort study compared patients who underwent ulnar nerve surgery with a minimum 5 years of follow-up. The primary outcome studied was the need for revision cubital tunnel surgery. In total, there were 132 cases corresponding to 119 patients. The cohorts were matched for age and comorbidity. Results: The long-term reoperation rate for in situ decompression was 25% compared with 12% for anterior subcutaneous transposition. Seventy-eight percent of revisions of in situ decompression were performed within the first 3 years. Younger age and female sex were identified as independent predictors of need for revision. Conclusions: In the long-term follow-up, in situ decompression is seen to have a statistically significant higher reoperation rate compared with subcutaneous transposition.
Persistent Patterns in the U.S. Alcohol Market: Looking at the Link between Demographics and Drinking

Global consumption patterns for alcoholic beverages are evolving, with some convergence in per capita consumption among nations, as traditionally beer-drinking nations increase their consumption of wine and, conversely, wine-consuming nations shift towards beer. In a forthcoming article (Hart and Alston, 2019), we explore regional patterns of alcoholic beverage consumption within the United States. One purpose is to see if similar patterns of spatial convergence in consumption patterns can be observed within countries as have been documented in international comparisons. A more fundamental purpose is to explore the converse question and seek to better understand the persistent differences in alcoholic beverage consumption among groups. These issues are addressed using annual U.S. national and state-level data over four decades and, for the more recent period, supermarket scanner data at finer scales of geopolitical aggregation. This proceedings article focuses on the analysis using supermarket scanner data. We find that socioeconomic and demographic variables appear to play significant roles in accounting for the spatial differences in consumption patterns. (JEL Classifications: D12, L66)
Tension measurements in abdominal wall hernia repair: Concept and clinical applications

Tension has always been and remains an important concept in hernia repair. Revolutionary techniques in the field of hernia repair have generally aimed to reduce tension and thereby reduce recurrence rates. Despite the uniformly agreed upon idea that tension is an important part of hernia repair, little is known about this subject in ventral and incisional hernias. We reviewed all published journal articles related to abdominal wall tension. Articles were organized into basic science and clinical reports, and results were evaluated for type and technique of tension measurement and implications for clinical practice. Several cadaveric and clinical studies relate to the measurement of abdominal wall tension. Despite similar methods of measuring, there is no uniformly agreed upon device or measurement. Abdominal wall tension has not been correlated with hernia width, and abdominal wall tension measurement has shown to be a useful adjunct intraoperatively. Abdominal wall tension measurements likely have a role in both the research and clinical practice of hernia surgery.
Does Timing of Inferior Vena Cava Filter Retrieval Planning Impact Retrieval Rates? A Comparison of Planning Before or After Hospital Discharge.

INTRODUCTION Indwelling inferior vena cava (IVC) filters are associated with complications, and the US Food and Drug Administration recommends their prompt removal when no longer indicated. Therefore, assessing strategies for increasing retrieval rates is warranted. OBJECTIVE To analyze the variability of IVC filter retrieval rates within our institution based on 2 separate, pre-existing processes in which IVC retrieval is planned for before or after hospital discharge. METHODS Retrospective chart review was completed for all IVC filters placed in adults between January 2005 and March 2015. Demographics and clinical data related to filter placement and retrieval were abstracted. Patients were classified into 2 groups: patients who had a trauma consultation trauma and nontrauma medical and surgical patients medical. The trauma group patients were subject to a 2-layer tracking process, in which retrieval planning was done before discharge, versus the medical group with a single-layer tracking process and retrieval planning done after discharge. RESULTS Of the 588 filter placements analyzed, 236 were placed in trauma patients and 352 were placed for medical reasons. The retrieval rate of the entire cohort was 45% (262/588), with the rate among trauma patients more than double that of medical patients (155/236, 66% and 107/352, 30%; respectively, P < 0.0001). CONCLUSION IVC filter retrieval rate was increased when filter removal was included in discharge planning versus postdischarge tracking. A systematic, multidisciplinary strategic approach to IVC filter management has great potential to improve filter utilization, resource allocation, patient safety, and filter retrieval.
Myocardial Infarction Secondary to Marijuana-Induced Coronary Vasospasm.

With the rise of the number of states fully legalizing marijuana, the use of this substance in the United States is at an all-time high. This increasing legalization gives the impression that marijuana is rather safe. However, multiple reports by our groups and others documented serious cardiovascular complications associated with marijuana use ranging from life threatening arrhythmia to myocarditis and myocardial infarction. In this report, we present a case of a 61 year old man presented with left sided typical chest pain shortly after marijuana consumption with the diagnosis of non ST-elevation myocardial infarction (NSTEMI) established based on clinical, EKG and troponin values with eventual cardiac catheterization documenting non-occlusive coronary artery disease with 30% obstruction of the proximal first obtuse marginal artery. We also review the putative pathophysiologic mechanisms of marijuana induced coronary vasospasms, highlighting the implications of these findings in the evaluation and management of cardiac chest pain in marijuana users.
Reversibly Softening and Stiffening Organogels Using a Wavelength-Controlled Disulfide-Diselenide Exchange

Wavelength-dependent light-responsive seleno-sulfide dynamic covalent bonds were used to prepare organogels with reversible changes in stiffness. The disulfide cross-link organogels prepared from n...
A Structural Perspective on Gene Repression by Polycomb Repressive Complex 2

Polycomb Repressive Complex 2 (PRC2) is a major repressive chromatin complex formed by the Polycomb Group (PcG) proteins. PRC2 mediates trimethylation of histone H3 lysine 27 (H3K27me3), a hallmark of gene silencing. PRC2 is a key regulator of development, impacting many fundamental biological processes, like stem cell differentiation in mammals and vernalization in plants. Misregulation of PRC2 function is linked to a variety of human cancers and developmental disorders. In correlation with its diverse roles in development, PRC2 displays a high degree of compositional complexity and plasticity. Structural biology research over the past decade has shed light on the molecular mechanisms of the assembly, catalysis, allosteric activation, autoinhibition, chemical inhibition, dimerization and chromatin targeting of various developmentally regulated PRC2 complexes. In addition to these aspects, structure-function analysis is also discussed in connection with disease data in this chapter.
Foreign Language Teachers’ Self-efficacy Beliefs and Perspectives about Maintaining Their Students’ Interest

Americans do not study foreign languages long enough to achieve communicative competence, and that poses economic and security problems for the nation as well as career and personal limitations for individuals. Despite the plethora of research studies on effective approaches and methods for teaching foreign languages, there is evidence in the literature that foreign language students often experience a loss of interest in the languages, and there is a critical need to investigate the causes of the lack of interest and propose solutions. To that end, this study took a look at the possible role played by teachers’ self-efficacy beliefs in their ability or inability to maintain their students’ interest in the target languages. By means of an online survey administered to foreign language teachers, this mixed methods study investigated their beliefs about their ability to impact their students positively and their general level of efficacy for teaching foreign languages. Findings revealed that the teachers overwhelmingly believed that they had a positive impact. However, their general level of efficacy was mildly high and there was no significant correlation between the teachers’ sense of efficacy and their ability to maintain their students’ interest in the languages. Implications for foreign language teacher preparation and professional development point to the need to develop a strong sense of efficacy as well as strategies for positively impacting students to maintain their interest in the language.
Are Alternative Investments Prudent? Public Sector Pension Use and Fiduciary Duty

1. Paul Rose 1. is the Frank E. and Virginia H. Bazler Designated Professor in Business Law at the Moritz College of Law, Ohio State University in Columbus, Ohio. (rose.933{at}osu.edu) 2. Jason S. Seligman 1. is an economist at the Office of Economic Policy in the Department of
Mandating Vaccines Through The REAL ID Act: A Federal Solution

Air travel was integral to the spread of COVID-19 as well as the 2018-2019 measles outbreak. The outbreaks reveal a need to address immunity in air travelers through a vaccination mandate. Although such mandates have traditionally been the domain of the states, the federal government can easily enact and implement a vaccination mandate through the REAL ID Act. The Act sets minimum documentation requirements for driver’s licenses that are acceptable for boarding airplanes, and will be enforced beginning October, 2021. This Note argues that Congress can—and should— attach proof of vaccination to the required documents for REAL ID applicants. Doing so would effectively mandate vaccinations for all domestic air travelers. A REAL ID immunization mandate is constitutional and practical as it requires only small changes to existing systems. These small changes, however, would instill confidence in air travel safety and ultimately protect our communities from communicable disease spread.
The Horn of Africa as Venue for Regional Competition: Motivations, Instruments and Relationship Patterns:

The Horn of Africa has visibly started to play a more distinctive role in international relations in the past years. Comprising Ethiopia, Somalia, Eritrea and Djibouti, the region is home to compet...
Association between home health agency ownership status and discharge to community among Medicare beneficiaries.

To investigate the association of ownership status, discharge rate and length of stay (LOS) of home health care (HH) services under the prospective payment system (PPS). We used 2016-2018 Outcome Assessment and Information Set (OASIS) data sets for Medicare beneficiaries. Two outcome variables were investigated: rate of discharge from an HH agency and LOS. Our main independent variable was ownership status: for-profit (FP) versus not-for-profit (NFP). FP agencies were 4.2% (p 99 days) compared to NFPs. Findings that FP agencies were less likely to discharge patients to the community and more likely to have a longer length of stay than NFP agencies have implications for quality of care initiatives by the Medicare Post-Acute Transformation Act 2014.
Classification of closed-fermionic-string models

A classification of ten-dimensional closed-fermionic-string models with world-sheet superconformal invariance, modular invariance, and physical states with proper space-time statistics is presented. This classification is based on an analysis of the spin structures of the Neveu-Schwarz-Ramond fermions and the fermionic variables used in representing the internal-symmetry space.
Lara, Lawrence, Supreme Court Litigation, and Lessons from Social Movements

United States v. Lara was hailed as a victory for Indian tribes because it upheld tribal criminal jurisdiction over non-member Indians. Lawrence v. Texas was hailed as a victory for the gay rights movement because it upheld the due process right of gays to be protected from criminal prosecutions for consensual sexual acts done in private within their own homes. Despite dramatically different contexts, the two cases share a common thread: both are cases in which interested groups achieved important successes by marshalling broad support for their arguments at the briefing stage which helped pave the way for Supreme Court victory. In a series of recent articles William Eskridge has documented the development of constitutional legal strategies during the past century by the gay rights movement, as well as the civil rights movement and the women's rights movement, and has evaluated their successes. This article will summarize some insights from Professor Eskridge and evaluate how and whether Indian tribes can adapt successful legal strategies of the gay rights movement or other social movements.
Gender Differences in Response to Setbacks: Evidence from Professional Tennis*

Objective We inquire whether the glass ceiling stems in part from the fact that women are more discouraged by setbacks than men are, as suggested by economic and psychological experiments. We use data from professional tennis to test this hypothesis. Method We apply ordered probit, ordinary least squares, and binomial probit to data from the 2012 ATP and WTA tennis tours. Results Women are not more likely than men to lose in straight sets or to lose the second two sets. Women who lose in straight sets win fewer games in the second set than men do. Women who lose the second set are more likely than men to withdraw from the third set. Conclusion Women are not more likely to lose because of setbacks, but those who do tend to lose by wider margins than men. This suggests that the glass ceiling is not the result of women being more easily discouraged than men.
Triangular lattice exciton model

We present a minimalistic equilateral triangular lattice model showing explicitly that the two-dimensional hydrogen model for excitons breaks down for excitons in semiconducting monolayer transition-metal dichalcogenides due to lattice effects and that these excitons are neither Wannier nor Frenkel excitons but rather span an intermediate regime. The model is formulated on sparse form in direct space, allowing it to be solved with great computational efficiency.
WebDG – A Platform for E-Government Web Services

Web services are deemed as the natural choice for deploying e-government applications. Their use enables e-government to fully get advantage of the envisioned Semantic Web. In this paper, we propose WebDG, a comprehensive Web Service Management System for e-government applications. It aims to improve government-citizen interactions through an infrastructure built around the ”life experience” of citizens. WebDG provides a framework for automatically composing e-government services, optimized querying services, and preserving privacy.
Stability time of a DT-filled cryogenic ICF target in a high vacuum environment

Following the successful pressure loading with DT of a thin-walled plastic inertial fusion target shell (such as those designed for use at the OMEGA facility at the University of Rochester`s Laboratory for Laser Energetics (UR/LLE)), continual care must be taken to safeguard the shell from being exposed to unacceptable pressure differentials across its wall. In particular, once the DT has been condensed into a liquid or solid phase and the outside pressure has been reduced, the target must be maintained below some upper cutoff temperature such that the vapor pressure of the DT is below the bursting pressure for the shell. Through the process of {beta}-decay the DT self-heats, but while the shell is in a high vacuum environment (P {much_lt} 0.8 Pa (6 mtorr) for the OMEGA layering sphere) there is only a negligible heat loss mechanism. This will cause the temperature to increase. A calculation has been done to estimate the rate of temperature increase of the loaded target under high vacuum conditions. A functional form for calculating the target`s temperature increase of the loaded target under high vacuum conditions. A functional form for calculating the target`s temperature increase given its starting temperature is presented. An overall resultmore » is that under high vacuum conditions the DT changes from a solid at 10 K to a liquid at 37 K ({Tc} = 39.4 K) in about 19 minutes. This holding time is significantly less if the initial temperature is higher, the initial state is liquid, or the upper allowed temperature is lower. Simplifying assumptions which were made and their impact on interpreting the results of this calculation are discussed.« less
Privacy-preserving queries on encrypted data

Data confidentiality is a major concern in database systems. Encryption is a useful tool for protecting the confidentiality of sensitive data. However, when data is encrypted, performing queries becomes more challenging. In this paper, we study efficient and provably secure methods for queries on encrypted data stored in an outsourced database that may be susceptible to compromise. Specifically, we show that, in our system, even if an intruder breaks into the database and observes some interactions between the database and its users, he only learns very little about the data stored in the database and the queries performed on the data. Our work consists of several components. First, we consider databases in which each attribute has a finite domain and give a basic solution for certain kinds of queries on such databases. Then, we present two enhanced solutions, one with a stronger security guarantee and the other with accelerated queries. In addition to providing proofs of our security guarantees, we provide empirical performance evaluations. Our experiments demonstrate that our solutions are fast on large-sized real data.
Choosing Size of Government Under Ambiguity: Infrastructure Spending and Income Taxation

I examine choice of size of government by a planner who has partial knowledge of population preferences and the productivity of public spending. Focusing on income tax-financed spending for infrastructure, I examine scenarios where the planner observes the outcome of a status quo policy and uses various decision criteria to choose policy. The analysis shows that the planner can reasonably choose a wide range of spending levels – thus, a society can rationalise having a small or large government. I conclude that to achieve credible conclusions about the desirable size of government, we need to improve current knowledge of preferences and the productivity of spending vastly.
Evaluation of the AODV and DSR Routing Protocols Using the MERIT Tool

Selecting the most appropriate routing protocol for a given set of conditions in a mobile ad hoc network (MANET) remains difficult. While the quantitative performance metrics are helpful in the selection, the problem is that the metrics of the protocols under consideration be generated by the same simulator in order to be comparable. The MERIT framework proposes to compare a routing protocol to a theoretical optimum rather than to a competing protocol. The goal is to achieve an implementation independent, scalable comparison methodology for protocols. In this paper we evaluate the DSR and AODV routing protocols in the MERIT tool. Our results agree with performance studies comparing these two protocols, validating the MERIT methodology.
Modular Symbols and Hecke Operators

We survey techniques to compute the action of the Hecke operators on the cohomology of arithmetic groups. These techniques can be seen as generalizations in different directions of the classical modular symbol algorithm, due to Manin and Ash-Rudolph. Most of the work is contained in papers of the author and the author with Mark McConnell. Some results are unpublished work of Mark McConnell and Robert MacPherson.
Arithmetic classification of perfect models of stratified programs

We study here the recursion theoretic complexity of the perfect (Herbrand) models of stratified logic programs. We show that these models lie arbitrarily high in the arithmetic hierarchy. As a byproduct we obtain a similar characterization of the recursion theoretic complexity of the set of consequences in a number of formalisms for non-monotonic reasoning. We show that under some circumstances this complexity can be brought down to recursiveness and recursive enumerability. To this purpose we study a class of recursion-free programs.
On the 2-Colorability of Random Hypergraphs

A 2-coloring of a hypergraph is a mapping from its vertices to a set of two colors such that no edge is monochromatic. Let Hk(n,m) be a random k-uniform hypergraph on n vertices formed by picking m edges uniformly, independently and with replacement. It is easy to show that if r ? rc = 2k-1 ln 2 - (ln 2)/2, then with high probability Hk(n,m = rn) is not 2-colorable. We complement this observation by proving that if r ? rc - 1 then with high probability Hk(n, m = rn) is 2-colorable.
The Effect of Medicare Advantage on Hospital Admissions and Mortality

AbstractMedicare currently allows beneficiaries to choose between traditional Medicare and privately run plans in the Medicare Advantage (MA) program. Because enrollment in MA is optional, conventi...
Trend-cycle correlation, drift break and the estimation of trend and cycle in Canadian GDP

Abstract. Univariate correlated trend cycle models are highly sensitive to the specifications of breaks in the data. This paper argues, using Monte Carlo experiments, that a bivariate correlated unobserved components (UC) framework with breaks delivers substantially more accurate results for the trend-cycle parameters than the corresponding univariate frameworks in a finite sample size. The paper estimates stochastic trend and cyclical fluctuations in Canada from a bivariate UC model. Results show a fairly volatile stochastic trend after the drift break and the negative trend-cycle shock correlation are accounted for. The estimated cyclical component is large, persistent, and consistent with ECRI denoted Canadian recessions.