bluuebunny/crossref_metadata_2025_split huggingface dataset:
Hall anomaly and moving vortex charge in layered superconductors
Authors: Auerbach Assa , Arovas Daniel 
Published: April 2020

Magnetotransport theory of layered superconductors in the flux flow
steady state is revisited. Longstanding controversies concerning
observed Hall sign reversals are resolved. The conductivity separates
into a Bardeen-Stephen vortex core contribution, and a Hall conductivity
due to moving vortex charge. This charge, which is responsible for Hall
anomaly, diverges logarithmically at weak magnetic field. Its values can
be extracted from magetoresistivity data by extrapolation of vortex core
Hall angle from the normal phase. Hall anomalies in
YBa_22Cu_33O_{7}7,
Bi_22Sr_22CaCu_22O_{8-x}8−x,
and Nd_{1.85}1.85Ce_{0.15}0.15CuO_{4-y}4−y
data are consistent with theoretical estimates based on doping
dependence of London penetration depths. In the appendices, we derive
the Streda formula for the hydrodynamical Hall conductivity, and refute
previously assumed relevance of Galilean symmetry to Hall anomalies.
Evaluation of automated groundwater level measurements for transmissivity and storativity calculation
Authors: Kirlas M. C. , Katsifarakis K. L. 
Published: April 2020

Abstract
In this paper, we discuss the accuracy of aquifer transmissivity (T) and storativity (S) values, obtained through the processing of hourly and 5-min groundwater level data, regularly and accurately recorded by automated stations. In particular, we discuss the role of the selection of (a) the initial undisturbed hydraulic head level, which might be influenced by prior pumping cycles, and (b) the exact time of start or shutdown of the pump, which might not be exactly recorded. Furthermore, the accuracy of T and S values based on sparse measurements is also examined. The Cooper–Jacob method and the recovery test method have been applied to obtain both T and S, and T values, respectively. Groundwater level measurements at Moudania aquifer, Chalkidiki, Greece, are used as an illustrative example. Our main conclusions are (a) assuming that pumping starts earlier than it actually does, leads to the underestimation of T and the overestimation of S, (b) transmissivity might be overestimated if the residual drawdown, due to previous pumping cycles, is substantial, (c) in recovery tests, the deviation of the straight line that fits the experimental points from the point (1,0) is an indication of residual drawdown, and (d) sparse measurements can offer reasonable estimates.
Smartphone Medical App Use and Associated Factors Among Physicians at Referral Hospitals in Amhara Region, North Ethiopia, in 2019: Cross-sectional Study (Preprint)
Authors: Teferi Gizaw Hailiye , Tilahun Binyam Cheklu , Guadie Habtamu Alganeh , Amare Ashenafi Tazebew 
Published: April 2020

BACKGROUND

Information in health care is rapidly expanding and is updated very regularly, especially with the increasing use of technology in the sector. Due to this, health care providers require timely access to the latest scientific evidence anywhere. Smartphone medical apps are tools to access the latest reputable scientific evidence in the discipline. In addition, smartphone medical apps could lead to improved decision making, reduced numbers of medical errors, and improved communication between hospital medical staff.

OBJECTIVE

The aim of this study was to assess smartphone medical app use and associated factors among physicians working at referral hospitals of the Amhara region, Ethiopia.

METHODS

An institution-based cross-sectional study design was conducted among physicians working at 5 referral hospitals in the Amhara region, Ethiopia, from February 5 to May 27, 2019. A simple random sampling method was used to select 423 physicians. A self-administered questionnaire was used to collect the data and analyzed using SPSS, version 21 (IBM Corp). Binary and multivariable logistic regression analysis was performed to assess factors associated with smartphone medical app use among physicians. A value of <i>P</i>&lt;.05, corresponding to a 95% CI, was considered statistically significant. The validity of the questionnaire was determined based on the view of experts and the reliability of it obtained by calculating the value of Cronbach alpha (α=.78)

RESULTS

In this study, most of the 417 respondents (375, 89.9%) had medical apps installed on their smartphones. Of those 375 respondents, 264 (70.4%) had used medical apps during clinical practice. The medical apps most commonly used by the respondents were UpToDate, Medscape, MedCalc, and Doximity. According to multivariable logistic regression analysis, attitude (adjusted odds ratio [AOR] 1.64, 95% CI 1.05-2.55), internet access (AOR 2.82, 95% CI 1.75-4.54), computer training (AOR 1.71, 95% CI 1.09-2.67), perceived usefulness of the app (AOR 1.64, 95% CI 1.05-2.54), information technology support staff (AOR 2.363, 95% CI 1.5-3.08), and technical skill (AOR 2.52, 95% CI 1.50-4.25) were significantly associated with smartphone medical app use.

CONCLUSIONS

Most respondents have a smartphone medical app and have used it in clinical practice. Attitude, internet access, computer training, perceived usefulness of the app, information technology support staff, and technical skill are the most notable factors that are associated with smartphone medical app use by physicians.
Pilot Study of Return of Genetic Results to Patients in Adult Nephrology
Authors: Nestor Jordan G. , Marasa Maddalena , Milo-Rasouly Hila , Groopman Emily E. , Husain S. Ali , Mohan Sumit , Fernandez Hilda , Aggarwal Vimla S. , Ahram Dina F. , Vena Natalie , Bogyo Kelsie , Bomback Andrew S. , Radhakrishnan Jai , Appel Gerald B. , Ahn Wooin , Cohen David J. , Canetta Pietro A. , Dube Geoffrey K. , Rao Maya K. , Morris Heather K. , Crew Russell J. , Sanna-Cherchi Simone , Kiryluk Krzysztof , Gharavi Ali G. 
Published: April 2020

Background and objectives
Actionable genetic findings have implications for care of patients with kidney disease, and genetic testing is an emerging tool in nephrology practice. However, there are scarce data regarding best practices for return of results and clinical application of actionable genetic findings for kidney patients.

Design, setting, participants, & measurements
We developed a return of results workflow in collaborations with clinicians for the retrospective recontact of adult nephrology patients who had been recruited into a biobank research study for exome sequencing and were identified to have medically actionable genetic findings.

Results
Using this workflow, we attempted to recontact a diverse pilot cohort of 104 nephrology research participants with actionable genetic findings, encompassing 34 different monogenic etiologies of nephropathy and five single-gene disorders recommended by the American College of Medical Genetics and Genomics for return as medically actionable secondary findings. We successfully recontacted 64 (62%) participants and returned results to 41 (39%) individuals. In each case, the genetic diagnosis had meaningful implications for the patients’ nephrology care. Through implementation efforts and qualitative interviews with providers, we identified over 20 key challenges associated with returning results to study participants, and found that physician knowledge gaps in genomics was a recurrent theme. We iteratively addressed these challenges to yield an optimized workflow, which included standardized consultation notes with tailored management recommendations, monthly educational conferences on core topics in genomics, and a curated list of expert clinicians for patients requiring extranephrologic referrals.

Conclusions
Developing the infrastructure to support return of genetic results in nephrology was resource-intensive, but presented potential opportunities for improving patient care.

Podcast
This article contains a podcast at https://www.asn-online.org/media/podcast/CJASN/2020_04_16_12481019.mp3
Yarns Emitting Far Infrared Rays
Authors: YÜCE İsmail 
Published: April 2020

Infrared radiation refers to
electromagnetic radiation whose wavelength is longer than visible light, but
shorter than terahertz and microwave radiation. Far infrared radiation (FIR)
denotes radiation that is considered a kind of infrared radiation and includes
wavelengths between 5.6-1000 micron. These rays are emitted by sun rays,
human body, metals and some minerals. The positive effect of these rays on human
health has already been mentioned and they are widely used especially in Far
East countries in textile products and saunas. For
the textile products to emit such rays, the fibres or fabrics are required to
gain some features. For this purpose, bioseramic powder is applied to the
fibres and hence the textile becomes able to emit far infrared rays. This study
deals with yarns that have acquired the ability to emit far infrared rays and
their usage areas in textile. This review examines
bioceramic powders, black body, production of FIR emitting yarns, features of
yarns, various usage areas and future trends by means of literature review
method.
Environmental Radiation Doses from Patients Undergoing Tc-99m DMSA Cortical Renal Scintigraphy
Authors: GÜNAY Osman , SARIHAN Mucize , ABAMOR Evrim , YARAR Onur 
Published: April 2020

Ionizing
radiation is often used for imaging in health applications. One of them is
scintigraphic method. one of the radiation emitters used in nuclear medicine is
technesium-99m (Tc-99m). This isotope releases gamma rays at about the same wavelength
as conventional X-ray diagnostic equipment, with 140 keV gamma ray energy which
has a ideal short half-life (t½ = 6 h) for diagnostic nuclear imaging. Before
imaging, the patient is injected with Tc-99m. After injecting Tc-99m, the
patient begins to emit radiation to the environment. Determination of this
radiation dose emitted by the patient is very important for public health. The
main objective of this study was to determine the environmental radiation doses
in patients undergoing Tc-99m DMSA cortical renal scintigraphy. In this study,
the radiation dose rate emitted by the patient about 5, 35 and 68 minutes after
Tc-99m injection was measured at different distances from the patient. As a
result of this study, the mean radiation dose at 5.07, 35.60 and 68.57 minutes
after injection was found to be 5.06 µSvh-1, 4.76 µSvh-1 and
4.18 µSvh-1 at a distance of 100 cm from the patient's chest level,
respectively. The results are important in terms of knowing the radiation dose
to which the patient will be exposed.
Determination of the Radiation Dose Level in Different Slice Computerized Tomography
Authors: GÜNAY Osman , GÜNDOĞDU Özcan , DEMİR Mustafa , ABUQBEİTAH Mohammad , YAŞAR Doğan , AKÖZCAN Serpil , KAPDAN Enis , YARAR Onur 
Published: April 2020

Today, many imaging tools have emerged in the
medical field using ionizing radiation. Computed tomography (CT) is regarded
the most creative and common modality among the other imaging
devices. In CT imaging, radiation may scatter to the environment from the
patient and the interaction medium. In this study, two CT scanners with
different slice numbers were used
to measure the scatter radiation dose to the
environment. Alderson rando phantom was utilized in the acquired CT exams as
human body simulation. Radiation dose levels at different distances were
determined by placing thermoluminescence dosimeters in the surrounding
environment (at different distances) during phantom’s head-neck and thorax CT
imaging. As a result, it
has been found that the radiation dose varies
between 13.90±1.96 µSv and 96.79±11.12 µSv in head and neck CT imaging. While,
in thorax CT scan, the
radiation dose varies between 5.28±0.84 µSv and 20.63±1.76 µSv.
Disaster Medicine: Implementation of an animal health database in response to the 2018 California Camp Fire
Authors: Dieckmann Hayley G. , Costa Lais R. R. , Martínez-López Beatriz , Madigan John E. 
Published: April 2020

Abstract

OBJECTIVE
To describe an animal health database used to facilitate effective disaster response and retrospective analysis of data concerning animals other than cats and dogs affected by the 2018 California Camp Fire.

ANIMALS
Veterinary medical entries (n = 206) for evacuated or rescued animals (151) of various species, including avian, bovine, camelid, caprine, equine, ovine, and porcine species, temporarily housed at the Butte County fairgrounds in Gridley, Calif.

PROCEDURES
Case data were collected via a standardized form by volunteers with the University of California-Davis Veterinary Emergency Response Team during triage and treatment of animals brought to the shelter. Collected data were entered into a database. Multiple correspondence analysis was used to evaluate associations among patient species, types and severity of injuries, and behavior.

RESULTS
Burns, respiratory disease, gastrointestinal illnesses, and lacerations were the most prevalent illnesses and injuries among the overall shelter population for the first 12 days of the Camp Fire. Ovine patients were more likely to have had respiratory illness than were other species. The most prevalent medical conditions among equine patients were lacerations and gastrointestinal illnesses. Severe burns were most common among porcine, camelid, and avian patients. The temporal distribution of cases suggested the immediate evacuation of equine species and the delayed movement of bovine and avian species to the shelter.

CONCLUSIONS AND CLINICAL RELEVANCE
Collection of animal health information through the database allowed assessment of prevalent medical conditions among various farm animals following a wildfire. Adaptation of this database to other disasters could improve emergency response protocols by providing guidance for management of resources and allow retrospective assessment for response improvement.
Coronavirus disease (COVID-19): a scoping review
Authors: Lv Meng , Luo Xufei , Estill Janne , Liu Yunlan , Ren Mengjuan , Wang Jianjian , Wang Qi , Zhao Siya , Wang Xiaohui , Yang Shu , Feng Xixi , Li Weiguo , Liu Enmei , Zhang Xianzhuo , Wang Ling , Zhou Qi , Meng Wenbo , Qi Xiaolong , Xun Yangqin , Yu Xuan , Chen Yaolong ,   on behalf of the COVID-19 evidence and recommendations working group
Published: April 2020

Background
In December 2019, a pneumonia caused by a novel coronavirus (SARS-CoV-2) emerged in Wuhan, China and has rapidly spread around the world since then.

Aim
This study aims to understand the research gaps related to COVID-19 and propose recommendations for future research.

Methods
We undertook a scoping review of COVID-19, comprehensively searching databases and other sources to identify literature on COVID-19 between 1 December 2019 and 6 February 2020. We analysed the sources, publication date, type and topic of the retrieved articles/studies.

Results
We included 249 articles in this scoping review. More than half (59.0%) were conducted in China. Guidance/guidelines and consensuses statements (n = 56; 22.5%) were the most common. Most (n = 192; 77.1%) articles were published in peer-reviewed journals, 35 (14.1%) on preprint servers and 22 (8.8%) posted online. Ten genetic studies (4.0%) focused on the origin of SARS-CoV-2 while the topics of molecular studies varied. Nine of 22 epidemiological studies focused on estimating the basic reproduction number of COVID-19 infection (R0). Of all identified guidance/guidelines (n = 35), only ten fulfilled the strict principles of evidence-based practice. The number of articles published per day increased rapidly until the end of January.

Conclusion
The number of articles on COVID-19 steadily increased before 6 February 2020. However, they lack diversity and are almost non-existent in some study fields, such as clinical research. The findings suggest that evidence for the development of clinical practice guidelines and public health policies will be improved when more results from clinical research becomes available.
Perancangan Outsource Management System Berbasis Web pada PT Sigma Cipta Utama
Authors: Iqbal Muhammad , Sihombing Redo Abeputera , Halimatusha'diah Halimatusha'diah 
Published: April 2020

Pesatnya kemajuan teknologi yang semakin canggih pada saat ini akan mendorong manusia untuk mencari kemudahan dan membantu dalam mendapatkan suatu informasi yg cepat, tepat dan akurat. Adapun tujuan penelitian ini untuk mendapatkan laporan yang efisien dan akurat sehingga dengan adanya sistem laporan outsourcing management system tidak memungkinkan terjadinya duplikasi data dan kesalahan input. Penelitian ini bertujuan untuk membantu mengadakan sistem terkomputerisasi dengan menggunakan metode grounded. Metode tersebut dipilih karena mampu melakukan penelitian berdasarkan yang ada di lapangan dan menggunakan analisis perbandingan. Maka metode grounded cocok diimplementasikan pada perancangan outsource management system berbasis web. Hasil penelitian yang di buat oleh peneliti ini sangat membantu untuk pengelolaan data karyawan outsourcing pada PT Sigma Cipta Utama. Kata Kunci: perancangan, outsource management system, berbasis web.
Rancangan Aplikasi Elektronik Menu Restoran PJ83 Jakarta Berbasis Android
Authors: Aswari Aldi , Santos Butar-Butar Forkas Tiroy , Halimatusha’diah Halimatusha’diah 
Published: April 2020

Tujuan dari penelitian adalah untuk merancang aplikasi elektronik menu makanan restoran untuk membantu pihak restoran dalam menangani pemesanan menu makanan dan memberikan kemudahan pelanggan untuk mengetahui menu yang tersedia pada restoran sehingga tidak memerlukan waktu yang lama dalam pemesanan makanan. Dengan menggunakan firebase aplikasi pemesanan di sisi pelanggan berbasis android dapat terintegrasi dengan aplikasi restoran berbasis android untuk mengatur pemesanan. Dalam perancangan aplikasi ini, metode yang digunakan untuk menganalisis perancangan aplikasi ini adalah metode grounded yaitu metode penelitian berdasarkan pada fakta, empiris, menetapkan konsep membuktikan dan mengembangkan teori, pengumpulan dan analisis dalam waktu bersamaan. Pada hasil pengujian yang dilakukan, aplikasi elektronik menu pada restoran yang diuji dengan kuesioner. Dan peneliti menarik kesimpulan bahwa sistem yang masih konvensional berubah menjadi suatu aplikasi untuk mempermudah restoran memberikan menu yang lebih efektif. Serta melakukan data input menjadi lebih cepat, karena sistem mampu melihat menu yang dipesan oleh pelanggan. Kata Kunci: Perancangan Aplikasi, Aplikasi Elektronik, Menu PJ83, Android
Sistem Penyewaan Rental Mobil dan Pengolahan Data pada Jennete Rent Car Berbasis Java
Authors: Kurniaedi Ari , Abadi Laksana Priyo , Kuncoro Adhityo 
Published: April 2020

Permasalahan dari sistem penyewaan rental mobil di Jennete Rent Car yaitu lambatnya pencarian pendataan ketersediaan mobil, data mobil, data peminjam, serta proses laporan penyewaan mobil yang diakibatkan karena sistem yang diterapkan masih bersifat manual dan belum terkomputerisasi. Dari persoalan tersebut, penulis tertarik untuk mengembangkan sistem penyewaan rental mobil di Jennete Rent Car yang ada saat ini sehingga dapat mengatasi kekurangan yang ada. Seiring dengan semakin canggihnya teknologi yang berkembang, komputer telah mendorong terjadinya perubahan ilmu, baik dalam kajian ataupun implementasi dilapangan. Peran teknologi komputer sangat diperlukan oleh berbagai perusahaan. Mengingat kebutuhan akan peningkatan efisiensi dan efektifitas dari setiap kegiatan dalam instansi tidak dapat diukur dan dilakukan secara cepat dan akurat tanpa adanya dukungan teknologi tersebut. Akurasi data, kecepatan waktu dan relevansi menjadi penentu kualitas informasi yang dihasilkan. Dengan menggunakan metode pengembangan sistem yaitu Waterfall dalam penelitian ini adalah dengan tahapan-tahapan seperti rekayasa sistem, analisis, desain, coding, testing, dan maintenance. Hasil dari penelitian ini adalah menciptakan aplikasi untuk penyewaan mobil efektif dan efisien. Kata Kunci: Sistem, Penyewaan, Mobil
Predictors of an academic career among fellowship-trained open vascular and endovascular neurosurgeons
Authors: Khalafallah Adham M. , Jimenez Adrian E. , Caplan Justin M. , McDougall Cameron G. , Huang Judy , Mukherjee Debraj , Tamargo Rafael J. 
Published: April 2020

OBJECTIVE
Although previous studies have explored factors that predict an academic career among neurosurgery residents in general, such predictors have yet to be determined within specific neurosurgical subspecialties. The authors report on predictors they identified as correlating with academic placement among fellowship-trained vascular neurosurgeons.

METHODS
A database was created that included all physicians who graduated from ACGME (Accreditation Council for Graduate Medical Education)–accredited neurosurgery residency programs between 1960 and 2018 using publicly available online data. Neurosurgeons who completed either open vascular or endovascular fellowships were identified. Subsequent employment of vascular or endovascular neurosurgeons in academic centers was determined. A position was considered academic if the hospital of employment was affiliated with a neurosurgery residency program; all other positions were considered non-academic. Bivariate analyses were conducted using Fisher’s exact test or the Mann-Whitney U-test, and multivariate analysis was performed using a logistic regression model.

RESULTS
A total of 83 open vascular neurosurgeons and 115 endovascular neurosurgeons were identified. In both cohorts, the majority of neurosurgeons were employed in academic positions after training. In bivariate analysis, only 2 factors were significantly associated with a career in academic neurosurgery for open vascular neurosurgeons: 1) an h-index of ≥ 2 during residency (OR 3.71, p = 0.016), and 2) attending a top 10 residency program based on U.S. News and World Report rankings (OR 4.35, p = 0.030). In bivariate analysis, among endovascular neurosurgeons, having an h-index of ≥ 2 during residency (OR 4.35, p = 0.0085) and attending a residency program affiliated with a top 10 U.S. News and World Report medical school (OR 2.97, p = 0.029) were significantly associated with an academic career. In multivariate analysis, for both open vascular and endovascular neurosurgeons, an h-index of ≥ 2 during residency was independently predictive of an academic career. Attending a residency program affiliated with a top 10 U.S. News and World Report medical school independently predicted an academic career among endovascular neurosurgeons only.

CONCLUSIONS
The authors report that an h-index of ≥ 2 during residency predicts pursuit of an academic career among vascular and endovascular neurosurgeons. Additionally, attendance of a residency program affiliated with a top research medical school independently predicts an academic career trajectory among endovascular neurosurgeons. This result may be useful to identify and mentor residents interested in academic vascular neurosurgery.