bluuebunny/crossref_metadata_2025_split huggingface dataset:
In COM we trust: Feasibility of USB-based event marking
Authors: Appelhoff Stefan , Stenner Tristan 
Published: April 2021

AbstractModern experimental research often relies on the synchronization of different events prior to data analysis. One way of achieving synchronization involves marking distinct events with electrical pulses (event markers or “TTL pulses”), which are continuously recorded with research hardware, and can later be temporally aligned. Traditionally, this event marking was often performed using the parallel port in standard personal computers. However, the parallel port is disappearing from the landscape of computer hardware, being replaced by a serial (COM) port, namely the USB port. To find an adequate replacement for the parallel port, we evaluated four microcontroller units (MCUs) and the LabJack U3, an often-used USB data acquisition device, in terms of their latency and jitter for sending event markers in a simulated experiment on both Windows and Linux. Our results show that all four MCUs were comparable to the parallel port in terms of both latency and jitter, and consistently achieved latencies under 1 ms. With some caveats, the LabJack U3 can also achieve comparable latencies. In addition to the collected data, we share extensive documentation on how to build and use MCUs for event marking, including code examples. MCUs are a cost-effective, flexible, and performant replacement for the disappearing parallel port, enabling event marking and synchronization of data streams.
Solidaritas Sosial Pedagang Kaki Lima terhadap Tingkah Laku Konsumen di D.I Yogyakarta
Authors: Hendra Djaja 
Published: April 2021

The presence of street vendors in Indonesia sometimes quiet disturbing especially for pedestrian and the motorist. However, they are also needed by the housewives to buy to rather than going to the market, supermarket or mall just to buy few things or only for a walk. Usually the street vendors had actually had place by the policy of the local government, however, maybe because of the little people know or with some other reason, the available places sometimes are left unused. The research is done towards 20 respondents with qualitative study. The method used is the phenomethologist. The result of the research gotten are as follow: First, most of the respondents come from Tegal city, approaching another big cities in Java, second, most of the local citizens search for additional income from that place; third, generally the things prepared are fast food; generally the sellers from outside of the region go with their own vehicle and using pushed carriage for the local citizen.
MELIHAT KONSTRUKSI GENDER DALAM PROSES MODERNISASI DI YOGYAKARTA
Authors: Astuti Dwi 
Published: April 2021

Like we know gender construction is always connected to cultural, and when the culture change it will effect gender construction. Yogyakarta lika other country in Indonesia,have high experience in modernisasi. This process will effect to culture in small or big part. This paper is a discription and explanation about gender construction in Yogyakarta on this era, written based on research. This research was conducted by necessity to know about the changes gender construction in community that have modernisation process. This process can create new relation between man and woman in many aspect. As a city that have strong patriarkhie culture, Yogyakarta can not avoid the modernisation process. And this process can influence that patriakhie culture, and than influence gender ralation indirectly in Yogyakarta. Gender construction in this paper is seen from four aspects, those are education, economi, politic dan double garden. Modernisation give effects on same aspek of gender construction. Although same aspect specially in public domain there is same changes in gender construction like in education, economi dan politic, but in domestic area specially doble garden, we can see that we find remains thd same. So we still can see the gender bias in domestic area. This research doing with discriptif method.
E o ENEM como fica? Expectativas da educação de surdos em tempos da COVID-19 na e pós pandemia
Authors: Santos Gabriella Cristina de França Silva , Viana Flávia Roldan 
Published: April 2021

As últimas semanas mostraram cada vez mais a diferença no impacto do fechamento de instituições de ensino público e privado em virtude da emergência em saúde pública de importância nacional, em razão da infecção humana pelo novo Coronavírus (SARS-CoV-2), causa da COVID-19. E nesse cenário agrava-se a situação de estudantes surdos do 3º ano do Ensino Médio que irão realizar o ENEM em 2020. Sendo assim, o objetivo deste ensaio é analisar as expectativas dos estudantes surdos matriculados no ensino médio de uma escola pública do Estado do RN, acerca do ENEM nesse momento de pandemia e pós-pandemia da COVID-19. Utilizou-se como método de pesquisa o estudo de caso. O ensaio evidenciou como resultados que é preciso refletir a respeito do papel da escola na educação inclusiva para surdos, que é marcada por desconhecimento e falta de políticas linguísticas que atendam esse alunado.
Palavras-chave: Educação de surdos. ENEM. Pandemia do coronavírus (COVID-19).
Intermittency of Fast MHD Modes and Regions of Anomalous Gradient Orientation in Low-β Plasmas
Authors: Ho Ka Wai , Lazarian A. 
Published: April 2021

Abstract
The strong alignment of small-scale turbulent Alfvénic motions with the direction of magnetic field that percolates the small-scale eddies and imprints the direction of the magnetic field is a property that follows from the MHD theory and the theory of turbulent reconnection. The Alfvénic eddies mix magnetic fields perpendicular to the direction of the local magnetic field, and this type of motion is used to trace magnetic fields with the velocity gradient technique (VGT). The other type of turbulent motion, fast modes, induces anisotropies orthogonal to Alfvénic eddies and interferes with the tracing of the magnetic field with the VGT. We report a new effect, i.e., in a magnetically dominated low-β subsonic medium, fast modes are very intermittent, and in a volume with a small filling factor the fast modes dominate other turbulent motions. We identify these localized regions as the cause of the occasional change of direction of gradients in our synthetic observations. We show that the new technique of measuring the gradients of gradient amplitudes suppresses the contribution from the fast-mode-dominated regions, improving the magnetic field tracing. In addition, we show that the distortion of the gradient measurements by fast modes is also applicable to the synchrotron intensity gradients, but the effect is reduced compared to the VGT.
The Distribution and Evolution of Quasar Proximity Zone Sizes
Authors: Chen Huanqing , Gnedin Nickolay Y. 
Published: April 2021

Abstract
In this paper, we study the sizes of quasar proximity zones with synthetic quasar absorption spectra obtained by postprocessing a Cosmic Reionization On Computers (CROC) simulation. CROC simulations have both relatively large box sizes and high spatial resolution, allowing us to resolve Lyman limit systems (LLSs), which are crucial for modeling the quasar absorption spectra. We find that before reionization, most quasar proximity zone sizes grow steadily for ∼10 Myr, while after reionization, they grow rapidly but only for ∼0.1 Myr. We also find a slow growth of R
obs with decreasing turn-on redshift. In addition, we find that ∼1%–2% of old quasars (30 Myr old) display extremely small proximity zone sizes (<1 proper Mpc), the vast majority of which are due to the occurrence of a damped Lyα absorber (DLA) or an LLS along the line of sight. These DLAs and LLSs are contaminated with metal, which offers a way to distinguish them from the normal proximity zones of young quasars.
Growth of Massive Disks and Early Disk Fragmentation in Primordial Star Formation
Authors: Kimura Kazutaka , Hosokawa Takashi , Sugimura Kazuyuki 
Published: April 2021

Abstract
Recent high-resolution simulations demonstrate that disks around primordial protostars easily fragment in the accretion phase before protostars accrete less than a solar mass. To understand why gravitational instability generally causes fragmentation so early, we develop a one-dimensional (1D) nonsteady model of the circumstellar disk that takes the mass supply from an accretion envelope into account. We also compare the model results to a three-dimensional (3D) numerical simulation performed with a code employing adaptive mesh refinement. Our model shows that the self-gravitating disk, through which the Toomre Q parameter is nearly constant at Q ∼ 1, gradually spreads as the disk is fed by the gas infalling from the envelope. We further find that the accretion rate onto the star is an order of magnitude smaller than the mass supply rate onto the disk. This discrepancy makes the disk more massive than the protostar in an early evolutionary stage. Most of the infalling gas is used to extend the outer part of the self-gravitating disk rather than transferred inward toward the star through the disk. We find that similar evolution also occurs in 3D simulations, where the disk becomes three times more massive than the star before the first fragmentation occurs. Our 1D disk model well explains the evolution of the disk-to-star mass ratio observed in the simulation. We argue that the formation of such a massive disk leads to early disk fragmentation.
Magnetorotational Instability in Quantum Dusty Plasma
Authors: Usman S. , Mushtaq A. 
Published: April 2021

Abstract
Magnetorotational instability (MRI) in complex quantum plasma, which comprises electron, ion, and dust grains, is investigated. Electrons are considered to be degenerate while ions and dust grains are taken as nondegenerate. The general dispersion relation for MRI with the effect of spin magnetization is derived using local approximations. The instability criteria for spin quantum plasma are derived using low-frequency approximations. Due to the complex nature of the dispersion relation, MHD assumptions are used to define the instability criteria. The dust mass plays a significant role in both the dispersion and growth rate of the magnetorotational mode. The complex mass of dust modifies the instability criteria. Spin magnetization force arises due to electron Pauli spin matrices and has an important role in low-temperature and highly dense plasmas that are found mainly in white dwarfs, neutron stars, and in core-collapse supernovae. It is found that spin magnetization influences the criteria for instability and hence the properties of MHD waves in the degenerate plasma.
Measuring the Mass of Missing Baryons in the Halo of Andromeda Galaxy with Gamma-Ray Observations
Authors: Zhang Yi , Liu Ruo-Yu , Li Hui , Shao Shi , Yan Huirong , Wang Xiang-Yu 
Published: April 2021

Abstract
It has been suggested that a huge amount of baryon resides in the circumgalactic medium (CGM) extending out to the virial radii of galaxies. In this work we attempt to measure the baryon mass in the CGM with a novel method based on the gamma-ray observations of the extended halo of the Andromeda galaxy Messier 31 (M31). Since cosmic-ray particles generated inside the galaxy will eventually escape to the CGM, they will produce gamma-ray emission via the proton–proton collision with the CGM and produce gamma-rays. Different from some traditional measurements that are sensitive only to certain metallic ions in specific temperature range, the hadronic gamma-ray flux is sensitive to baryonic gases in all phases and does not rely on the metallicity in the halo, hence the measured gamma-ray flux from the galaxy’s halo can be used to constrain the mass of the CGM. By dealing with the cosmic-ray transport in the halo and calculating the hadronic gamma-ray intensity, we find that the total baryon mass contained within the virial radius is less than (1.4–5) × 1010
M
⊙ according to the gamma-ray intensity obtained with a model-dependent analysis. It implies that the CGM of Andromeda galaxy may not account for more than 30% of the missing baryons, but the result is subject to uncertainties from the gamma-ray intensity upper limit, diffusion coefficient of the cosmic-rays in the halo, as well as the stellar mass and dark matter halo mass of the galaxy. This method will become more constraining provided better understandings on these issues and more sensitive gamma-ray telescopes in the future.
Test-retest Reliability for HAQ-DI and SF-36 PF for the Measurement of Physical Function in Psoriatic Arthritis
Authors: Leung Ying Ying , Tillett William , Hojgaard Pil , Orbai Ana-Maria , Holland Richard , Mathew Ashish J. , Goel Niti , Chau Jeffrey , Lindsay Christine A. , Ogdie Alexis , Coates Laura C. , Christensen Robin , Mease Philip J. , Strand Vibeke , Gladman Dafna D. 
Published: April 2021

Objective.Due to no existing data, we aimed to derive evidence to support test-retest reliability for the Health Assessment Questionnaire–Disability Index (HAQ-DI) and 36-item Short Form Health Survey physical functioning domain (SF-36 PF) in psoriatic arthritis (PsA).Methods.We identified datasets that collected relevant data for test-retest reliability for HAQ-DI and SF-36 PF, and evaluated them using Outcome Measures in Rheumatology (OMERACT) Filter 2.1 methodology. We calculated intraclass correlation coefficients (ICC) as a measure of test-retest reliability. We then conducted a quality assessment and evaluated the adequacy of test-retest reliability performance.Results.Two datasets were identified for HAQ-DI and 1 for SF-36 PF in PsA. The quality of the datasets was good. The ICCs for HAQ-DI were good and excellent in study 1 (0.90, 95% CI 0.79–0.95) and study 2 (0.94, 95% CI 0.89–0.97). The ICC for SF-36 PF was excellent (0.96, 95% CI 0.92–0.98). The performance of test-retest reliability for both instruments was judged to be adequate.Conclusion.The new data derived support good and reasonable test-retest reliability for HAQ-DI and SF-36 PF in PsA.
Les relations dialectiques entre l’entrepreneuriat social et l’ESS au Maroc
Authors: Chapus Quentin 
Published: April 2021

Le développement de l’entrepreneuriat social, dans son acception dominante d’origine anglo-saxonne (social entrepreneurship), divise parmi ceux qui défendent une pluralité des formes d’entreprendre : peut-il (re)dynamiser le secteur de l’ESS, ou bien s’agit-il d’une énième réinvention du capitalisme ? De telles positions gagnent à être étayées par des analyses contextualisées, ce que l’auteur réalise dans cet article à partir d’une enquête conduite au Maroc dans les années 2010, montrant que l’entrepreneuriat social y a d’emblée été bien plus proche du modèle porté par la start-up que de celui de l’entreprise sociale. Les « entrepreneurs sociaux » marocains témoignent ainsi d’une vision peu critique du capitalisme, bien que la recherche d’utilité sociale soit au cœur de leur engagement. Si, paradoxalement, cela participe à la marginalisation des structures de l’ESS, cet attrait pour le « social » pourrait être favorable à l’émergence de pratiques plus solidaires.
Entretien avec Lahou Keita, spécialisée en ingénierie de la maintenance aéronautique et entrepreneure fondatrice avec sa sœur Fatou Keita de Keitas Systems au Canada
Authors: Vernier Éric , Dokou Gérard Akrikpan Kokou 
Published: April 2021

Lahou Keita est Inspectrice avion (inspections achats / ventes d’avions), spécialisée en ingénierie de la maintenance aéronautique. Elle a débuté sa carrière aéronautique aux Aéroports de Paris, à Roissy Charles de Gaulle, au département de centrage des avions. Lahou Keita a continué son cursus au support Clients pour la gestion de maintenance chez Dassault Falcon Service (filiale de Dassault Aviation) à l’aéroport du Bourget. Elle a poursuivi sa carrière en Suisse (à Genève) dans des centres de maintenance tels que Ruag Aviation et Jet Aviation. Diplômée en langues étrangères appliquées, Lahou Keita est polyglotte, et parle notamment le finnois. La société Keitas Systems France a été constituée à Nantes en 2011. L’entreprise Keitas Systems Canada a été créée quant à elle à Québec en 2019. Depuis 2011, Keitas Systems a pour objectifs d’améliorer le quotidien des centres de maintenance aéronautique et des opérateurs d’avions du monde entier : réductions des coûts, optimisation de la chaîne de valeur…
Nurses’ Team Communication in Hospitals: A Quasi-Experimental Study using a Modified Teamstepps
Authors: Ahsan Ahsan , Setiowati Lucky , Wieke Noviyanti Linda , Rahmawati Ike Nesdia , Ningrum Evi Harwiati , Putra Kuswantoro Rusca 
Published: April 2021

Background Communication is a bridge of transaction between the health team, patients, and families that applies in the service units of hospitals, which are closely related to the patient safety culture. TeamSTEPPS is a team strategies and tools to enhance performance and patient safety. Therefore, this study aims to analyze the effect of modified TeamSTEPPS training on the team communication of nurses in hospitals. Design and methods This study used a quasi-experimental pre-post-test control group design and a purposive sampling technique. Results About 28 nurses participated and were distributed into control and intervention groups. The results of the Wilcoxon test on communication perception obtained a p-value greater than α (0.980>0.050), while on communication attitudes the p-value was greater than α (0.517>0.050). Furthermore, the spearman rho test showed that there was no difference between the team perception (p=0.624; α=0.050) and communication attitudes (p = 0.320; α = 0.050). This means that the implementation of this training towards nurses’ Team communication in the hospital did not have a significant effect. Conclusions Hospitals need to carry out the implementation of TeamSTEPPS in a sustainable manner and develop good teamwork and effective team communication.
Quantitative Determination of Epa and Dha in Fish Oil Capsules for Cardiovascular Disease Therapy in Indonesia by Gc-Ms
Authors: Lorensia Amelia , Budiono Ryanto , Suryadinata Rivan Virlando , Tiarasari Navy 
Published: April 2021

Background The consumption of EPA (Eicosapentaenoic acid), and DHA (docosahexaenoic acid), from fish oil, in the long run, has been observed to have a positive impact on patients with coronary heart disease. Fish oil products, with so much EPA and DHA content are available, and have very variable prices. Therefore, as a therapy to be used for long-term treatment, the cost factor is to be considered. Design and methods This study analyzed the content of EPA and DHA, using GC-MS. The sample to be analyzed was the fish oil that has the lowest price (Product A1), and that of the highest (Product A2). Furthermore, the macroscopic analysis was performed, by observing the physical form including organoleptic and qualitative tests, by reading the fragments identified by EPA and DHA. Results Clinical trials were conducted on patients (about 46 people), with risk factors and dyslipidemia. Product A1 showed EPA at tR= 15.574 min (relative%= 88.49%, similarity= 95%), and DHA at tR= 21.714 min (relative%= 88.92%, similarity= 93%). Product A2 showed EPA at tR= 28.719 min (relative%= 22.58%, similarity= 89%), and DHA at tR= 32.327 min (relative%= 22.87%, similarity= 90%), which meant that both had EPA and DHA contents, in accordance with their labels. Both products were confirmed to reduce total cholesterol in 4weeks (p=0.000, p= 0.000), with no significant difference in their effectiveness (p=0.652). Conclusion The results showed that both the A1 and A2 products, had the EPA and DHA contents in accordance with their respective labels. However, with the A2 product having a percentage relatively higher than that of the A1 brand, both are equally very effective.
Perception of Safety Climate among Indonesian Nurses: A Cross-Sectional Survey
Authors: Ningrum Evi Harwiati , Evans Sue , Soh Sze-Ee , Ernest Arul 
Published: April 2021

Background The measurement of nurse perception on safety, and the factors associated to safety climate, direct the development of effective strategies in reducing adverse events, and patient safety improvement. Design and Method This research was quantified, using the teamwork and safety climate domains of an Indonesian translated version of the Safety Attitudes Questionnaire (SAQ-INA). The teamwork and safety climate domain scores were calculated, using the published SAQ-INA scoring algorithm. The univariate and multivariate median regression models were performed to examine the association between potential predictors and safety climate. Result The results showed that 279 nurses responded to the survey (82% response rate). While most of them had a positive attitude towards teamwork (n=170, 61%), fewer possessed the same mentality towards safety climate (n=109, 39%). The lowest level of teamwork was perceived by nurses working in the emergency department (median 71, interquartile range 12.5), and safety climate (median 64, interquartile range 14.2). Furthermore, those that worked in the private hospitals, also reported lower levels of safety climate, compared to nurses in the public health centres (median difference=-3.571, p=0.009). Conclusion Ward and hospital type were associated with the level of safety climate, perceived by nurses. Understanding the key areas, the intervention is best directed to target hospital wards with poor safety climate, in a bid to reduce adverse events, and improve patient safety.
Holistic-Comprehensive Approaches to Improve Nutritional Status of Children under Five Years
Authors: Setyawan Febri Endra Budi , Lestari Retno 
Published: April 2021

Background Malnutrition has been identified as the leading cause of illness and death in almost half of children under 5 years. Hence, to prevent the impact of malnutrition on physical and psychological development, family physicians need to explore new approaches in the health care delivery models that go beyond the scope of practice. A holistic-comprehensive approach will help the physicians develop a more thorough assessment of nutritional status. This study aims to determine factors associated with the nutritional status of children under five years using holistic-comprehensive approaches. Design and methods A case–control design was implemented, with emphasis on the identification of cases and control groups; 48 children confirmed malnutrition cases and 48 control without malnutrition were recruited from a Community Integrated Health Center in East Java, Indonesia. The characteristics of agent, host and environment between groups were compared and analyzed using correlation coefficients, odds ratio, logistic regression analysis, and Structural Equation Modeling-Partial Least Square (SEM-PLS). Results The SEM-PLS results showed that environmental factors have a greater influence on nutritional status (t-value >1.96), compared to the host factors. Furthermore, environmental factors having significant associations with nutritional status were poor socioeconomic status, low maternal educational level and not having exclusive breastfeeding. Also, the results of correlation coefficients and OR showed that birth weight (p=0.000, OR=33) and socioeconomic status (p=0.000, OR=22.3) had strong correlations with nutritional status. Conclusions Holistic-comprehensive approaches can be used as new ways to determine factors that may be associated with nutritional status of children under 5 years of age.