bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Seimei telescope project and technical developments
Authors: Kurita Mikio , Kino Masaru , Iwamuro Fumihide , Ohta Kouji , Nogami Daisaku , Izumiura Hideyuki , Yoshida Michitoshi , Matsubayashi Kazuya , Kuroda Daisuke , Nakatani Yoshikazu , Yamamoto Kodai , Tsutsui Hironori , Iribe Masatsugu , Jikuya Ichiro , Ohtani Hiroshi , Shibata Kazunari , Takahashi Keisuke , Tokoro Hitoshi , Maihara Toshinori , Nagata Tetsuya 
Published: April 2020

ABSTRACT
An overview of the Seimei telescope, a 3.8 m optical infrared telescope located on Mt. Chikurinji in the Okayama prefecture of Japan, is presented. Seimei is a segmented-mirror telescope whose primary mirror consists of 18 petal-shaped segments. The telescope tube supporting the thin segmented mirrors is structurally incorporated within large arc-rails providing the elevation axis. The tube has a light-weight homologous structure designed with a genetic algorithm. The total weight of the telescope tube, including 1.4-ton optics, is only 8 tons. By virtue of its light weight, the telescope is able to point at an object anywhere in the observable sky within one minute. The telescope is operated by Kyoto University in collaboration with the National Astronomical Observatory of Japan (NAOJ). Half of the telescope time is used by Kyoto University. The remaining time is open to the Japanese astronomical community. NAOJ is responsible for the management of the open-use time, including handling of the observation proposals. The telescope is now regularly performing scientific observations on the basis of a variety of proposals.
Efficacy and Safety of Pulsed Radiofrequency as a Method of Dorsal Root Ganglia Stimulation in Patients with Neuropathic Pain: A Systematic Review
Authors: Vuka Ivana , Marciuš Tihana , Došenović Svjetlana , Ferhatović Hamzić Lejla , Vučić Katarina , Sapunar Damir , Puljak Livia 
Published: April 2020

AbstractObjectivePulsed radiofrequency (PRF) is a nonablative pain treatment that uses radiofrequency current in short high-voltage bursts, resulting in interruption of nociceptive afferent pathways. We conducted a systematic review with the aim to create a synthesis of evidence about the efficacy and safety of PRF applied to the dorsal root ganglion (DRG) for the treatment of neuropathic pain.MethodsWe searched MEDLINE, CINAHL, Embase, and PsycINFO through January 8, 2019, as well as ClinicalTrials.gov and the clinical trial register of the World Health Organization. All study designs were eligible. We assessed risk of bias using the Cochrane tool for randomized controlled trials and the Risk Of Bias In Non-Randomized Studies of Interventions (ROBINS-I). We assessed level of evidence using the Oxford tool and quality of evidence with GRADE.ResultsWe included 28 studies with participants suffering from lumbosacral, cervical, or thoracic radicular pain, post-herpetic neuralgia, neuropathicbone pain in cancer patients, or carpal tunnel syndrome. Only five studies were randomized controlled trials (RCTs), while others were of nonrandomized designs, predominantly before and after comparisons. A total of 991 participants were included, with a median number (range) of 31 (1–101) participants. Only 204 participants were included in the RCTs, with a median number (range) of 38 (23–62) participants. The overall quality of evidence was low, as the majority of the included studies were rated as evidence level 4 or 5. The quality of evidence was very low.ConclusionsEvidence about the efficacy and safety of PRF of the DRG for the treatment of neuropathic pain is based mainly on results from very small studies with low evidence quality. Current research results about the benefits of PRF of the DRG for the treatment of neuropathic pain should be considered preliminary and confirmed in high-quality RCTs with sufficient numbers of participants.
Measurement theory in classical mechanics
Authors: Katagiri So 
Published: April 2020

Abstract
We investigate measurement theory in classical mechanics in the formulation of classical mechanics by Koopman and von Neumann (KvN), which uses Hilbert space. We show a difference between classical and quantum mechanics in the “relative interpretation” of the state of the target of measurement and the state of the measurement device. We also derive the uncertainty relation in classical mechanics.
Non-compact superconformal field theory and mock modular forms
Authors: Sugawara Yuji 
Published: April 2020

Abstract
One of interesting issues in two-dimensional superconformal field theories is the existence of anomalous modular transformation properties appearing in some non-compact superconformal models, corresponding to the “mock modularity” in mathematical literature. I review a series of my studies on this issue in collaboration with T. Eguchi, mainly focusing on T. Eguchi and Y. Sugawara, J. High Energy Phys. 1103, 107 (2011); J. High Energy Phys. 1411, 156 (2014); and Prog. Theor. Exp. Phys. 2016, 063B02 (2016).
Workplace Knowledge Flows*
Authors: Sandvik Jason J , Saouma Richard E , Seegert Nathan T , Stanton Christopher T 
Published: April 2020

AbstractWe conducted a field experiment in a sales firm to test whether improving knowledge flows between coworkers affects productivity. Our design allows us to compare different management practices and isolate whether frictions to knowledge transmission primarily reside with knowledge seekers, knowledge providers, or both. We find large productivity gains from treatments that reduced frictions for knowledge seekers. Workers who were encouraged to seek advice from a randomly chosen partner during structured meetings had average sales gains exceeding 15%. These effects lasted at least 20 weeks after the experiment ended. Treatments intended to change knowledge providers’ willingness to share information, in the form of incentives tied to partners’ joint output, led to positive—but transitory—sales gains. Directing coworkers to share knowledge raised average productivity and reduced output dispersion between workers, highlighting the role that management practices play in generating spillovers inside the firm.
On the Structure of Graphs of Markoff Triples
Authors: Konyagin Sergei V , Makarychev Sergey V , Shparlinski Igor E , Vyugin Ilya V 
Published: April 2020

Abstract
We sharpen the bounds of J. Bourgain, A. Gamburd and P. Sarnak (2016) on the possible number of nodes outside the ‘giant component’ and on the size of individual connected components in the suitably defined functional graph of Markoff triples modulo $p$. This is a step towards the conjecture that there are no such nodes at all.
Hierarchically electrospraying a PLGA@chitosan sphere-in-sphere composite microsphere for multi-drug-controlled release
Authors: Liu Zhu , Ye Weilong , Zheng Jingchuan , Wang Qindong , Ma Guowu , Liu Huiying , Wang Xiumei 
Published: April 2020

Abstract
Sequential administration and controlled release of different drugs are of vital importance for regulating cellular behaviors and tissue regeneration, which usually demands appropriate carriers like microspheres (MS) to control drugs releases. Electrospray has been proven an effective technique to prepare MS with uniform particle size and high drug-loading rate. In this study, we applied electrospray to simply and hierarchically fabricate sphere-in-sphere composite microspheres, with smaller poly(lactic-co-glycolic acid) MS (∼8–10 μm in diameter) embedded in a larger chitosan MS (∼250–300 μm in diameter). The scanning electron microscopy images revealed highly uniform MS that can be accurately controlled by adjusting the nozzle diameter or voltage. Two kinds of model drugs, bovine serum albumin and chlorhexidine acetate, were encapsulated in the microspheres. The fluorescence-labeled rhodamine-fluoresceine isothiocyanate (Rho-FITC) and ultraviolet (UV) spectrophotometry results suggested that loaded drugs got excellent distribution in microspheres, as well as sustained, slow release in vitro. In addition, far-UV circular dichroism and matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS) results indicated original secondary structure and molecular weight of drugs after electrospraying. Generally speaking, our research proposed a modified hierarchically electrospraying technique to prepare sphere-in-sphere composite MS with two different drugs loaded, which could be applied in sequential, multi-modality therapy.
In vitro immunomodulation of magnesium on monocytic cell toward anti-inflammatory macrophages
Authors: Sun Lei , Li Xiaoyu , Xu Menghan , Yang Fenghe , Wang Wei , Niu Xufeng 
Published: April 2020

Abstract
Biodegradable magnesium (Mg) has shown great potential advantages over current bone fixation devices and vascular scaffold technologies; however, there are few reports on the immunomodulation of corrosive Mg products, the micron-sized Mg particles (MgMPs). Human monocytic leukemia cell line THP-1 was set as the in vitro cell model to estimate the immunomodulation of MgMPs on cell proliferation, apoptosis, polarization and inflammatory reaction. Our results indicated high-concentration of Mg2+ demoted the proliferation of the THP-1 cells and, especially, THP-1-derived macrophages, which was a potential factor that could affect cell function, but meanwhile, cell apoptosis was almost not affected by Mg2+. In particular, the inflammation regulatory effects of MgMPs were investigated. Macrophages exposed to Mg2+ exhibited down-regulated expressions of M1 subtype markers and secretions of pro-inflammatory cytokines, up-regulated expression of M2 subtype marker and secretion of anti-inflammatory cytokine. These results indicated Mg2+ could convert macrophages from M0 to M2 phenotype, and the bioeffects of MgMPs on human inflammatory cells were most likely due to the Mg2+-induced NF-κB activation reduction. Together, our results proved Mg2+ could be used as a new anti-inflammatory agent to suppress inflammation in clinical applications, which may provide new ideas for studying the immunomodulation of Mg-based implants on human immune system.
ESTIMATION OF OCCUPATIONAL RADIATION EXPOSURE FOR MEDICAL WORKERS IN RADIOLOGY AND CARDIOLOGY IN THE UNITED ARAB EMIRATES: NINE HOSPITALS EXPERIENCE
Authors: Elshami Wiam , Abuzaid Mohamed , Pekkarinen Antti , Kortesniemi Mika 
Published: April 2020

Abstract

Purpose
Occupational radiation exposure for medical workers in radiology and cardiology was analyzed in nine hospitals in the UAE between 2002 and 2016. The purpose of the study was to determine the time trend and the differences in occupational radiation exposure among worker groups and hospitals in the country.

Methods
Readings of 5700 thermoluminescence dosimeters (TLDs) were obtained from 1011 medical workers and grouped into 5 worker groups (radiographers, diagnostic radiologists, nurses, cardiologists and physicians).

Results
The mean annual effective dose was from 0.38 to 0.62 mSv per worker. Even though an increase in the collective effective dose has been noticed during the study period, no significant time trend was observed in the mean effective dose. Furthermore, cardiologists received higher mean and maximum effective doses than the other worker groups.

Conclusion
The annual effective doses were below the limits set by national legislation and international standards, and for the average worker, the likelihood of high exposure is small. However, improvements in radiation protection practices could be implemented to reduce occupational radiation dose to cardiologists, who were the most exposed worker group in this study.
A Psychotherapy Private Practice Social Work Practicum: Expanding Our Boundaries of Field Education Placement
Authors: Turner George W , Derusha Killian , Meyers Lisa , Snyder Ben , Gray Amy , Asby Michelle , Durham Joy 
Published: April 2020

AbstractMany social workers go into private practice, providing crucial mental health services; however, there is a dearth in the scholarship outlining the social work student training for these career options. It may be argued that social work students receive little or no clinical training on how to run a private practice providing psychotherapy services. To mend this pedagogical shortcoming, a private practice field education placement is a legitimate teaching opportunity to prepare social work students to meet the mental health needs of individuals, families, and the public. Authors drew on borderlands theory described by Gloria Anzaldua as a contested space that focuses on “both and” thinking, which resonated with a sense of navigating a border filled with cultural tension between private practice and social work. Five social workers explore their unique experiences of a private practice field education placement using borderlands theory as a lens. Qualitative analysis of autoethnography narratives resulted in six themes: (1) benefits to private practice site, (2) preparation for social work, (3) private practice is social work, (4) balanced picture, (5) practicum landscape, and (6) learning opportunities. The article concludes with recommendations for social work education and research.
The Perils of Privatization: Bringing the Business Model into Human Services
Authors: Zelnick Jennifer R , Abramovitz Mimi 
Published: April 2020

AbstractDuring the last three decades in both the United States and Europe, neoliberal policies, especially privatization, have restructured services in ways that dramatically affect the capacity of human services workers and agencies to serve all clients. Privatization means not only transforming public programs such as Social Security, but also managerialism—the incorporation of business principles, methods, and goals into public and nonprofit human services organizations. Few researchers have looked at the impact of market-based managerialism (focused on productivity, accountability, efficiency, and standardization) on social work’s mission and the effectiveness of human services workers and organizations. Using an anonymous survey of 3,000 New York City human services workers, authors examined the impact of managerialist practices including performance measures, quantifiable short-term outcomes, and routinized practices on frontline workers and service provision. A troubling trend emerged. Workers in agencies with a high commitment to managerialism found it considerably more difficult to adhere to social work’s mission and fundamental values. This conflict between the “logic of the market” and the “logic of social work” subsided dramatically in agencies with a low commitment to managerialism, indicating that even in today’s competitive environment, agencies can protect the social work mission.
Adherence to Masculine Norms and Depressive Symptoms in Young Black Men
Authors: Goodwill Janelle R , Johnson Natasha C , Watkins Daphne C 
Published: April 2020

AbstractRecent reports have highlighted disparities in representation of Black men within research, calling for more work to be done with this group. The authors take up this call by exploring whether adherence to masculine norms influences mental health outcomes among young Black men. The sample included survey responses from 18- to 30-year-old Black men (N = 273) enrolled at five colleges and universities in the midwestern United States. Two theoretically relevant subscales from the Conformity to Masculine Norms Inventory (that is, self-reliance and emotional control) were used to measure adherence to masculine norms, and depressive symptoms were measured using the Patient Health Questionnaire. Confirmatory factor analysis results indicate that the model fit the data well. Furthermore, self-reliance was associated with higher rates of depressive symptoms (β = .358, p &lt; .001), but emotional control was not (β = .137, p = .099). Study findings suggest that depression treatment interventions should be tailored to incorporate aspects of masculinity that are most salient to young Black men. In addition, social work researchers, clinicians, and service providers are uniquely positioned to contribute to the promotion of mental wellness among this underserved population and should be prepared to attend to young Black men’s mental health needs.
In Vitro Screening of a Culturable Soybean Cyst Nematode Cyst Mycobiome for Potential Biological Control Agents and Biopesticides
Authors: Haarith Deepak , Kim Dong-gyu , Strom Noah B. , Chen Senyu , Bushley Kathryn E. 
Published: April 2020

Fungal biological control of soybean cyst nematodes (SCN) is an important component of integrated pest management for soybean. However, very few fungal biological control agents are available in the market. In this study, we have screened fungi previously isolated from SCN cysts over 3 years from a long-term crop rotation field experiment for their ability to antagonize SCN using (i) parasitism, (ii) egg hatch inhibition, and (iii) J2 mortality. We evaluated egg parasitism using an in-vitro egg parasitism bioassays and scored parasitism using the egg parasitic index (EPI) and fluorescent microscopy. The ability of these fungi to produce metabolites causing egg hatch inhibition and J2 mortality was assessed in bioassays using filter-sterilized culture filtrates. We identified 10 high-performing isolates each for egg parasitism and toxicity toward SCN eggs and J2s and repeated the tests after storage for 1 year of cryopreservation at −80°C to validate the durability of biocontrol potential of the chosen 20 isolates. Although the parasitic ability changed slightly for the majority of strains after cryopreservation, they still scored 5/10 on EPI scales. There were no differences in the ability of fungi to produce antinemic metabolites after cryopreservation. [Formula: see text] Copyright © 2020 The Author(s). This is an open access article distributed under the CC BY 4.0 International license .
Shaping a Culture for Continuous Quality Improvement in Undergraduate Medical Education
Authors: Bendermacher Guy W.G. , De Grave Willem S. , Wolfhagen Ineke H.A.P. , Dolmans Diana H.J.M. , oude Egbrink Mirjam G.A. 
Published: April 2020

PurposeThis study sought to identify key features of an organizational quality culture and explore how these features contribute to continuous quality improvement of undergraduate medical education.MethodBetween July and December 2018, researchers from Maastricht University in the Netherlands conducted a multicenter focus group study among 6 education quality advisory committees. Participants were 22 faculty and 18 student representatives affiliated with 6 medical schools in the Netherlands. The group interviews focused on quality culture characteristics in relation to optimizing educational development, implementation, evaluation, and (further) improvement. Template analysis, a stepwise type of thematic analysis, was applied to analyze the data.ResultsFive main themes resembling quality culture constituents to continuous educational improvement were identified: (1) fostering an open systems perspective, (2) involving stakeholders in educational (re)design, (3) valuing teaching and learning, (4) navigating between ownership and accountability, and (5) building on integrative leadership to overcome tensions inherent in the first 4 themes. A supportive communication climate (which can be fueled by the organization’s leaders) contributes to and is integrated within the first 4 themes.ConclusionsThe results call for a shift away from static quality management approaches with an emphasis on control and accountability toward more flexible, development-oriented approaches focusing on the 5 themes of a culture for continuous quality improvement. The study provides new insights in the link between theory and practice of continuous quality improvement. Specifically, in addition to quality management systems and structures, faculty’s professional autonomy, collaboration with peers and students, and the valuing of teaching and learning need to be amplified.
Substance Dependence Comorbidity With Mental Disorders in Egyptian Young Adults
Authors: El-Shinnawy Hanan , Sayed Radwa H. , Khalil Mohamed A. , Ayoub Doaa R. 
Published: April 2020

Objectives:
Substance dependence is commonly seen among Egyptian young adults. Unfortunately limited data are available about the prevalence of comorbidity of mental disorders and substance dependence in this age group. In addition, substance dependence is correlated with many psychopathologic factors such as low self-esteem, childhood abuse, and stressful life events, etc. which could aggravate the load of the disorder.

Methods:
A case control study that included 80 patients diagnosed with substance dependence according to the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, text revised (DSM-IV-TR). The sample was recruited from Kasr Al-Ainy Psychiatry and Addiction Hospital. Subjects were divided into 2 groups: group 1 (cases with the diagnosis of comorbid substance dependence and other mental disorder) and group 2 (cases with the diagnosis of substance dependence only). They were examined using Addiction Severity Index (ASI) and Rosenberg Self-Esteem Scale (RES).

Results:
Patients in group 1 had significantly higher levels of impairment and disability in scores of ASI: drug use, social impairment, and psychiatric problems. They had higher percentage of psychopathologic factors, for example, history of childhood abuse. There was no significant difference in the presence of comorbid personality disorder, or history of stressful life events.

Conclusions:
Comorbidity of mental disorders with substance dependence is associated with more impairment and functional deterioration. Young adults with substance dependence have high levels of associated psychopathologic factors, such as childhood abuse, stressful life events, and deliberate self-harm.
RETeval Portable Electroretinogram Parameters in Different Severity Stages of Glaucoma
Authors: Kita Yoshiyuki , Holló Gábor , Saito Tsunehiro , Momota Yousuke , Kita Ritsuko , Tsunoda Kazushige , Hirakata Akito 
Published: April 2020

Précis:
Four parameters of the noninvasive, portable RETeval electroretinogram (ERG) system were found to correlate with visual field mean deviation and optical coherence tomography (OCT) thickness parameters, and may therefore be suitable for glaucoma detection.

Purpose:
To investigate the RETeval full-field ERG parameters for accuracy of separating glaucoma and normal eyes, and correlation with glaucoma severity.

Patients and Methods:
Sixty-two eyes of 62 primary open-angle glaucoma patients [visual field mean deviation (MD) range: −0.44 to −31.15 dB] and 39 eyes of 39 healthy controls underwent one RETeval test (photopic negative response protocol), OCT imaging, and Humphrey 30-2 visual field testing. The glaucoma patients were divided into early (MD≥−6dB, n=33) and moderate-to-advanced (MD<−6 dB, n=29) groups.

Results:
Significant correlations were found between the best-performing 4 RETeval ERG parameters and the glaucoma severity measures (MD and OCT thickness parameters) for all eyes, all glaucoma eyes and the moderate-to-advanced glaucoma eyes [photopic negative response amplitude at 72 ms (PhNR 72) and MD: r=−0.333, −0.414, and −0.485, respectively, P≤0.008; PhNR 72 and average circumpapillary retinal nerve fiber layer thickness; r=−0.429, −0.450, and −0.542, respectively, P≤0.002]. Except for P-ratio, there was no significant difference between the area under the receiver-operating characteristic (AUROC) values of the OCT thickness parameters (range: 0.927 to 0.938) and the 4 best-performing RETeval ERG parameters (range: 0.839 to 0.905) in the early glaucoma versus control separation. For differentiating the control and the moderate-to-advanced glaucoma eyes, the AUROC values of the 4 best-performing RETeval ERG parameters ranged between 0.924 and 0.958, and no significant difference was found between them and those of the OCT parameters.

Conclusions:
The noninvasive, portable RETeval full-field ERG device may be useful to detect glaucoma in moderate-to-advanced stages.