bluuebunny/crossref_metadata_2025_split huggingface dataset:
The choice of methods for modeling organizational and technological solutions in the construction of buildings and structures
Authors: Abramova Anastasia 
Published: May 2021

An important task in the construction of buildings and structures is the choice of the most rational solutions in terms of organization and technology of construction production.
Currently, the complexity and variety of organizational and technological decisions in the dynamics of the process of erecting buildings and structures for various purposes requires research.
To this end, it is necessary to improve existing or develop new organizational and technological solutions, in conditions when the tasks are set to increase the growth in the volume of housing construction.
The author is faced with the task of forming an integrated system that includes organizational and technological solutions, methods and assessment of the effectiveness of the study.
It is assumed that the results of the study will be in demand by construction organizations to maintain competitiveness, paying attention to organizational and technological solutions, both at the stage of preparation and during construction. This will prevent losses, increase the effective functioning of construction organizations in the market, and strengthen their business reputation.
Scientific novelty lies in the formation of parameters and their classification, methods of modeling organizational and technological solutions.
To assess organizational and technological solutions, it is necessary to study methods and ways of measuring them.
In the course of the research, an analysis of the methods widely used at present for the qualitative and quantitative assessment of organizational and technological solutions was carried out. Qualitative assessment methods make it possible to reveal the significance of certain factors of a phenomenon through the analysis of competent opinions. In the case of studying the influence of organizational and technological solutions on construction processes, there are no measurable physical parameters, objects inaccessible to perception and large volumes of statistical data.
The article concludes that empirical, theoretical and quantitative methods are difficult for the research chosen by the author. Therefore, the author of this article chose the Monte Carlo method (MCM) as a research method - a group of numerical methods for studying random processes. Also, the work identified a vector for further research.
Intraoperative OCT – Real-World User Evaluation in Routine Surgery
Authors: Juergens Lukas , Michiels Sofie , Borrelli Maria , Spaniol Kistina , Guthoff Rainer , Schrader Stefan , Frings Andreas , Geerling Gerd 
Published: May 2021

Abstract
Background In recent years, great progress has been made in intraoperative imaging using optical coherence tomography (iOCT). There are now several commercially available iOCT systems that allow high-resolution imaging of all structures of the eye without interrupting surgery. This real-time visualisation can provide additional information to conventional surgical microscopy, but is relatively expensive. The aim of our study was to find out how often OCT integrated into the surgical microscope is used by trained surgeons, or to what extent they consider that iOCT is relevant for intraoperative procedures.
Patients and Methods A prospective monocentric analysis was conducted of the field of application and user-friendliness of the EnFocus Ultra-Deep OCT (Leica Microsystems), a mobile device combination of surgical microscope and OCT. The use and benefit were investigated of iOCT, which was not mandatory. Standardised documentation and evaluation using a questionnaire was performed by the respective surgeon (n = 5) immediately after surgery.
Results Over a period of 25 working days, 118 procedures were performed in the operating theatre equipped with the microscope-OCT combination. The iOCT was used in 24.6% of the 118 procedures performed. iOCT was regarded as crucial to the intraoperative procedure in 3 of the 29 patients. In one patient, it was possible to check graft orientation during a DMEK operation in a very opaque cornea and, in the second patient, to visualise the correct positioning of an iris diaphragm in the capsular bag. In the third patient, the risk of developing a pseudoforamen was assessed, and this led to the decision not to perform a full gliosis peel.
Conclusion Experienced surgeons in a university eye hospital with a full surgical spectrum considered that intraoperative OCT was decisive for the course of surgery in only a few selected surgical situations, e.g. in case of limited corneal transparency. The impact of the use of iOCT on post-operative outcome quality still needs to be evaluated by larger prospective studies. On the basis of this survey, the cost-benefit ratio is still unclear.
„Die Psychiatrie nimmt sich Zeit …“ Warum Psychiater*in werden? – Eine qualitative Studie
Authors: Unger Annemarie , Jahn Rebecca , Höflich Anna , Gruber Maria 
Published: May 2021

Zusammenfassung
Ziel Identifikation von intrinsischen Motivatoren, die bei der Berufswahl Psychiatrie eine Rolle spielen.
Methodik 14 leitfadengestützte Tiefeninterviews wurden mithilfe von Codierungsrahmen systematisch ausgewertet.
Ergebnisse Positive Aspekte waren der zwischenmenschliche Fokus und der ganzheitliche Ansatz. Negative Dimensionen waren das schlechte Image unter Kolleg*innen, Vorurteile und Stigma. Die Entstigmatisierung der Psychiatrie und die Gleichstellung psychiatrischer mit somatischen Aspekten in Fallberichten wurden als Möglichkeiten vorgeschlagen, das Interesse am Fach Psychiatrie zu erhöhen.
Schlussfolgerung Um die Beliebtheit der Psychiatrie bei Mediziner*innen zu steigern, bedarf es Maßnahmen zur Bekämpfung von mit Psychiatrie verbundenem Stigma im Gesundheitswesen. Im Rahmen der medizinischen Lehre müssen psychiatrische Störungen, welche durch ihre hohe Prävalenz alle medizinischen Disziplinen betreffen, entsprechende Gewichtung erhalten.
Teilhabe an Verkehr und Mobilität bei Patienten mit Alkoholabhängigkeit und psychischer Behinderung
Authors: Steinert Tilman , Götzl Stefan , Flammer Erich 
Published: May 2021

Zusammenfassung
Hintergrund Die Inklusion im Hinblick auf die persönliche Mobilität (§ 20 der UN-Behindertenrechtskonvention) sollte bei einer Stichprobe von Menschen mit Alkoholabhängigkeit und zusätzlicher psychischer Behinderung untersucht werden.
Methode Interviews mit N = 153 Personen in Einrichtungen der Eingliederungshilfe, stationärer und ambulanter Behandlung.
Ergebnisse Die persönliche Mobilität erfolgt wesentlich häufiger als in der Allgemeinbevölkerung mit dem Fahrrad oder zu Fuß. 43,3 % besaßen dennoch ein Kraftfahrzeug.
Schlussfolgerung Der Ausbau von öffentlichem Personennahverkehr und des Radwegenetzes ist auch unter dem Gesichtspunkt der Inklusion von Menschen mit psychischer Erkrankung erstrebenswert.
New Sulfoxide-Containing Derivatives from the Resin of Ferula sinkiangensis
Authors: Wang Junchi , Yan Haoli , Huo Xiaoshuang , Li Lingyu , Wang Huijuan , Zhang Meng , Li Xiaojin , Zhao Yaqin , Chen Gang , Si Jianyong 
Published: May 2021

AbstractFour undescribed sulfoxide-containing derivatives, sinkiangenoxides A and B, (2Z, 4E)-sinkiangenoxide C, and (2E, 4E)-sinkiangenoxide C (1 – 4), and one known compound, 1-(methylthio)propyl (E)-1-propenyl disulfide (5), were isolated from the resin of Ferula sinkiangensis. Their structures were determined based on spectroscopic methods, including IR, UV, HRESIMS, NMR, and CD analysis. Compounds 2 – 4 showed moderate cytotoxic activities against four human cancer cell lines with IC50 values ranging from 15.0 to 40.3 µM. Sinkiangenoxide B (2) was shown to induce apoptosis in HepG2 cells. In addition, compound 5 effectively attenuated lipopolysaccharide-induced nitric oxide release and TNF-α, IL-1β, IL-6, and IL-10 expression.
Characteristics of Medically Transported Critically Ill Children with Respiratory Failure in Latin America: Implications for Outcomes
Authors: Serra Jesus A. , Díaz Franco , Cruces Pablo , Carvajal Cristobal , Nuñez Maria J. , Donoso A. , Bravo-Serrano J.A. , Carbonell M. , Courtie C. , Fernández A. , Martínez-Arroyo L. , Martínez J. , Menta S. , Pedrozo-Ortiz Luis , Wegner A. , Monteverde-Fernández Nicolas , Jaramillo-Bustamante Juan C. , Jabornisky Roberto , González-Dambrauskas Sebastián , Kudchadkar Sapna R. , Vásquez-Hoyos Pablo ,   On behalf of LARed Network
Published: May 2021

AbstractSeveral challenges exist for referral and transport of critically ill children in resource-limited regions such as Latin America; however, little is known about factors associated with clinical outcomes. Thus, we aimed to describe the characteristics of critically ill children in Latin America transferred to pediatric intensive care units for acute respiratory failure to identify risk factors for mortality. We analyzed data from 2,692 patients admitted to 28 centers in the Pediatric Collaborative Network of Latin America Acute Respiratory Failure Registry. Among patients referred from another facility (773, 28%), nonurban transports were independently associated with mortality (adjusted odds ratio = 9.4; 95% confidence interval: 2.4–36.3).
Rapid formation of large-area MoS2 monolayers by a parameter resilient atomic layer deposition approach
Authors: Gonzalez Marco A. , Pareek Devendra , Büsing Lukas , Beer Marcel , Parisi Jürgen , Schäfer Sascha , Gütay Levent 
Published: May 2021

In this work, an atomic layer deposition approach for the synthesis of MoS2 monolayers is presented. Optical properties of the prepared large-area samples were characterized by Raman and photoluminescence (PL) spectroscopies, yielding homogeneous optical properties in 5 × 5 mm2 areas. High-resolution transmission electron microscopy and atomic force microscopy demonstrate closed films with grain sizes in the micrometer range. Crucial process parameters and their impact on the properties of the resulting layers are discussed, highlighting the resilience of the process with a broad parameter window for obtaining monolayer films with a high PL yield.
Preliminary Study on the Mechanisms of Ankle Injuries Under Falling and Impact Conditions Based on the THUMS Model
Authors: Li Zhengdong , Zhang Jianhua , Wang Jinming , Huang Ping , Zou Donghua , Chen Yijiu 
Published: May 2021

AbstractAnkle injuries are common in forensic practice, which are mainly caused by falling and traffic accidents. Determining the mechanisms and manners of ankle injuries is a critical and challenging problem for forensic experts. The identification of the injury mechanism is still experience-based and strongly subjective. There also lacks systematic research in current practice. In our study, based on the widely used Total Human Model of Safety 4.0 (THUMS 4.0), we utilized the finite element (FE) method to simulate ankle injuries caused by falls from different heights (5 m, 10 m and 20 m) with different landing postures (natural posture, inversion, eversion, plantar-flexion and dorsi-flexion) and injuries caused by impacts from different directions (anterior-posterior, lateral-medial and posterior-anterior) with different speeds (10 m/s, 15 m/s and 20 m/s) at different sites (ankle and lower, middle and upper sections of leg). We compared the injury morphology and analyzed the mechanisms of ankle injuries. The results showed that falling causes a specific compression fracture of the distal tibia, while fractures of the tibia and fibula diaphysis and ligament injuries caused by falling from a lower height or inversion, planter flexion or dorsiflexion at a large angle are not distinguishable from the similar injury patterns caused by impact on the middle and upper segments of the leg. No obvious compression fracture of the tibia distal was caused by the impacts, whereas ligament injuries and avulsion fractures of the medial or lateral condyle and fractures of the diaphysis of the tibia and fibula were observed. Systematic studies will be helpful in reconstructing the ankle injury processes and analyzing the mechanisms in forensic practice, providing a deeper understanding of ankle injury mechanisms for forensic experts.
Tunable thermal conductivity of ternary alloy semiconductors from first-principles
Authors: De Santiago Francisco , Raya-Moreno Martí , Miranda Álvaro , Cruz-Irisson Miguel , Cartoixà Xavier , Rurali Riccardo 
Published: May 2021

Abstract
We compute the thermal conductivity, κ, of five representative III–V ternary alloys—namely In
x
Ga1 − x
As, GaAs1 − x
P
x
, InAs1 − x
Sb
x
, GaAs1 − x
N
x
, and GaP1 − x
N
x
—in the whole range of compositions, and in zincblende and wurtzite crystal phases, using a first-principles approach and solving the phonon Boltzmann transport equation beyond the relaxation time approximation. We discuss the tunability of the thermal conductivity with the composition of the alloy, reporting a steep decrease in the thermal conductivity, followed by a wide plateau and a steep increase common in systems with lattice disorder. We also test the approximation consisting in considering impurities at small values of x as bare mass defects, neglecting their chemical identity, and discuss its validity.
Efficiency improvement of P3CT-Na based MAPbI3 solar cells with a simple wetting process
Authors: Kassou Said , Wu Jia-Ren , Thakur Diksha , Chandel Anjali , Chiang Shou-En , Cheng Kai-Jen , Chen Sheng-Hui , Shen Ji-Lin , Chang Sheng Hsiung 
Published: May 2021

Abstract
The averaged power conversion efficiency of polyelectrolytes (P3CT-Na) based MAPbI3 solar cells can be increased from 14.94% to 17.46% with a wetting method before the spin-coating process of MAPbI3 precursor solutions. The effects of the wetting process on the surface, structural, optical and excitonic properties of MAPbI3 thin films are investigated by using the atomic-force microscopic images, x-ray diffraction patterns, transmittance spectra, photoluminescence spectra and Raman scattering spectra. The experimental results show that the wetting process of MAPbI3 precursor solution on top of the P3CT-Na/ITO/glass substrate can be used to manipulate the molecular packing structure of the P3CT-Na thin film, which determines the formation of MAPbI3 thin films.
Chiral phase transition and equation of state in chiral imbalance *
Authors: Wang Qing-Wu , Shi Chao , Zong Hong-Shi 
Published: May 2021

Abstract
The chiral phase transition and equation of state are studied within a novel self-consistent mean-field approximation of the two-flavor Nambu-Jona-Lasinio model. In this newly developed model, modifications to the chemical μ and chiral chemical

potentials are naturally included by introducing vector and axial-vector channels from Fierz-transformed Lagrangian to the standard Lagrangian. In the proper-time scheme, the chiral phase transition is a crossover in the

plane. However, when

is incorporated, our study demonstrates that a first order phase transition may emerge. Furthermore, the chiral imbalance will soften the equation of state of quark matter. The mass-radius relationship and tidal deformability of quark stars are calculated. The maximum mass and radius decrease as

increases. Our study also indicates that the vector and axial-vector channels exhibit an opposite influence on the equation of state.
Heavy ion induced charge exchange reactions: A preliminary study within the Constrained Molecular Dynamics model
Authors: Giuliani Gianluca 
Published: May 2021

Abstract
We present a preliminary study of charge exchange heavy ion induced reactions based on the constrained molecular dynamics (CoMD) model. The purpose is to test the capability of the model in predicting the occurrence of single charge exchange (SCE) and double charge exchange (DCE) exit channels for three different entrance channels at the same laboratory incident energy. The nuclear reaction dynamics and nuclear interaction within the CoMD approach are the only ingredients that have given, at this stage, promising results for SCE and DCE cross section calculations. The obtained results suggest an upgrade and possible future employment of the model for studies relating to the production of exotic nuclei through charge exchange reactions or DCE reactions and their connection with neutrinoless double beta decay.
Signature of the 27-day variation in hemispheric sunspot activity and asymmetry during 2010–2015
Authors: Singh Prithvi Raj , Saad Farid Ahmad Islam , Kumar Pant Tarun , Kumar Singh Abhay 
Published: May 2021

Abstract
In the present work, we study the time evolution, significance of the N-S asymmetry excesses presented as a function of the solar cycle and prominent rotational periods (∼27 d) separately for the northern and southern hemispheres. We have investigated short-term variations of the hemispheric solar activity (sunspot numbers and sunspot areas) during the time period 2010–2015, which covers the ascending and the maximum phase of solar cycle 24. We have implemented the Lomb-Scargle periodogram and continuous wavelet transform power spectrum techniques to study the time evolution and dominant rotational periods separately for the northern and southern hemispheres, and whole solar disk. Our results showed that the northern hemisphere exhibited longer solar synodic periods than the southern hemisphere, indicating that the northern hemisphere has a lower rotation rate. Moreover, the northern hemisphere was found to be dominant before transferring to the southern hemisphere during mid-2013. Also, the sunspot areas clearly demonstrated a two-peak structure of solar activity in the northern and southern hemispheres respectively during 2012 and 2014. The statistical significance of the southern hemisphere affirmed enhanced excess during the maximum phase of solar cycle 24.
Magnetic activity and orbital parameters of CC Com based on photometric data, LAMOST low- and medium-resolution spectra
Authors: Zhu Zhong-Zhong , Zhang Li-Yun , Meng Gang , Cheng Yao , Long Liu , Han Xianming L. , Pi Qing-Feng , Jiang Lin-Yan 
Published: May 2021

Abstract
In this paper, we present four sets of photometric V RI light curves, and several LAMOST low and medium resolution spectra of contact binary CC Com. We revised the orbital parameters by simultaneously combining with previously published radial velocity measurements using the Wilson-Devinney program. We used light curves at different observational times to obtain the starspot parameters. The values of the starspot radius are variable in short- and long-term scales, and their longitudes are stable. We updated the orbital period change of CC Com, and analyzed the periodic variation. The period of CC Com decreases at a rate of 4.66 (±0.20) × 10−11 d yr−1, which may be due to mass transfer from the secondary component to the primary component. The oscillation of its orbital period with a period of 17.18(0.08) years and amplitude of 0.0018(1) d may be caused by the light time effect (LITE) via a third body of 0.06 M
⊙ dwarf or magnetic activity cycle. Furthermore, we obtained one optical spectrum from the LAMOST survey, which gives the spectral type of CC Com as K7±2V. Strong emissions exist in the Hα, and Ca ii H&K lines in the observed spectrum, indicating strong chromospheric activity on CC Com. In the 12 LAMOST medium-resolution spectra, the EWs of Hα line are variable along the phase and time, which may be a plage or flare event.
An agile very low frequency radio spectrum explorer
Authors: Chen Lin-Jie , Yan Yi-Hua , Fan Qiu-Xiang , Geng Li-Hong , Bisoi Susanta Kumar 
Published: May 2021

AbstractThe very low frequency (VLF) regime below 30 MHz in the electromagnetic spectrum has presently been drawing global attention in radio astronomical research due to its potentially significant science outcomes exploring many unknown extragalactic sources, transients, and so on. However, the nontransparency of the Earth’s ionosphere, ionospheric distortion and artificial radio frequency interference (RFI) have made it difficult to detect the VLF celestial radio emission with ground-based instruments. A straightforward solution to overcome these problems is a space-based VLF radio telescope, just like the VLF radio instruments onboard the Chang’E-4 spacecraft. But building such a space telescope would be inevitably costly and technically challenging. The alternative approach would be then a ground-based VLF radio telescope. Particularly, in the period of post 2020 when the solar and terrestrial ionospheric activities are expected to be in a ‘calm’ state, it will provide us a good chance to perform VLF ground-based radio observations. Anticipating such an opportunity, we built an agile VLF radio spectrum explorer co-located with the currently operationalMingantu Spectra Radio Heliograph (MUSER). The instrument includes four antennas operating in the VLF frequency range 1–70 MHz. Along with them, we employ an eight-channel analog and digital receivers to amplify, digitize and process the radio signals received by the antennas. We present in the paper this VLF radio spectrum explorer and the instrument will be useful for celestial studies of VLF radio emissions.
Trend of Urbanization Rate in China Various Regions
Authors: Duan Lingyun , Liu Ziyuan , Yu Wen , Chen Wei , Jin Dongyan , Sun Suhua , Dai Ruixi 
Published: May 2021

Abstract
Urbanization is a key part of achieving a overall well-off society in it’s decisive stage. Accurately predicting the developing trend of urbanization rate has important practical significance for relevant departments to make strategic decisions. This article uses Stata software and the relevant data released by Data Center of the National Bureau of Statistics, selects the urbanization rate time series data of 31 provinces of China from 1990 to 2019, establishes an ARIMA model of urbanization rate and time, and predicts 2020 to 2050. Trend of urbanization rate in various regions. The data shows that, exclude individual areas, the urbanization rate of each area can reach 72% in 2030 and over 90% in 2050. However, the development of urbanization rates among regions is uneven, and relevant departments should formulate a reasonable development strategy on the basis of sustainable and balanced development
A method of designing high-voltage power using transformer parameters
Authors: Zhang Junling , Jin Renbo 
Published: May 2021

Abstract
PWM high-frequency high-voltage power has different ratio in light load and heavy load; often seriously affect the equipment’s indicators and reliability. In order to find out the cause of this phenomenon and avoid it well in the design, it is necessary to understand the distribution parameters of high-frequency high-voltage transformers and the effect of high-voltage rectifier circuits on circuit gain.
A Movable Test Device for Main Board Voltage
Authors: Liu Jinyu , Yang Teng , Li Dongze 
Published: May 2021

Abstract
Systematic thinking and mechanical physics methods are used to reform professional testing equipment and then to improve the working environment and conditions of professionals, which provides a design idea of movable test device for main board voltage. It is used to improve the efficiency of product quality test and maintenance. The device consists of two parts: the core component bearing system and the stability support system. The core component bearing system consists of a base, a test table, a voltage test device, a voltage test probe, and other components. The stability support system mainly provides functions such as component connection, core equipment fixing and equipment overall movement, including fixing columns, connecting rods, first baffles, first limiting plates, elastic parts, second baffles, lifting components, movable components and other components.