bluuebunny/crossref_metadata_2025_split huggingface dataset:
Tradução e adaptação transcultural para a língua portuguesa do Questionário Banff para Instabilidade Patelar
Authors: Galvão Pedro Henrique Schmidt Alves Ferreira , Marques Dayane Screpante , Gracitelli Guilherme Conforto , Ferreira Marcio de Castro , Kubota Marcelo Seiji , Franciozi Carlos Eduardo da Silveira 
Published: June 2021

Resumo
Objetivo Realizar a tradução para a língua portuguesa falada no Brasil e a adaptação transcultural do questionário Banff para Instabilidade Patelar.
Métodos A tradução e adaptação transcultural seguiu o processo de validação linguístico proposto por diretrizes internacionais, que consiste em seis etapas: tradução, síntese, retrotradução, revisão pelo comitê de especialistas, pré-teste, e apresentação do relatório final aos autores do questionário original. Foram incluídos no estudo pacientes alfabetizados, com diagnóstico de instabilidade patelar recorrente, com mais de 12 anos de idade, que assinaram ou tiveram o termo de consentimento livre e esclarecido assinado por um responsável legal. Foram excluídos do estudo pacientes portadores de comorbidades neurológicas ou sistêmicas.
Resultados Um total de 62 pacientes (18 homens e 44 mulheres) foram incluídos no estudo. Durante os processos de tradução e harmonização das retrotraduções, foram observadas discrepâncias, que foram modificadas sem necessidade de reformulação. Não foram necessárias substituições na versão do pré-teste.
Conclusão O Questionário Banff para Instabilidade Patelar foi traduzido e adaptado transculturalmente para a língua portuguesa falada no Brasil com sucesso, podendo ser utilizado para a avaliação de pacientes portadores de instabilidade patelar falantes desta língua.
Rates of and Risk Factors for Trigger Finger after Open Carpal Tunnel Release
Authors: Raducha Jeremy E. , Jiang Winston , Kahan Lindsey , Dove James Houston , Cochran Christopher , Weiss Arnold-Peter C. 
Published: June 2021

Abstract
Background We have anecdotally noticed a higher rate of trigger fingers (TFs) developing in patients who have undergone carpal tunnel release (CTR).
Questions/Objective Is the rate of TFs after CTR greater compared to the nonoperative hand? Is the thumb more commonly involved postoperatively compared with spontaneous TFs? Do particular associated comorbidities increase this risk?
Patients and Methods We queried our institutional database for patients who had undergone open CTR during a 2-year period and recorded the development of an ipsilateral TF after a CTR or a contralateral TF in the nonoperative hand. Patient demographics, comorbidities, concurrent initial procedures, time to diagnosis, and finger involvement were recorded.
Results A total of 435 patients underwent 556 CTRs during this period. Furthermore, 46 ipsilateral TFs developed in 38 of 556 cases (6.83%) at an average of 228.1 ± 195.7 days after surgery. The thumb was most commonly involved (37.0%) followed by the ring finger (28.3%). The incidence rate of TF in the nonoperative hand during this period was 2.7%, with the ring finger and middle finger most commonly involved (33.3 and 28.6%, respectively). Only history of prior TF in either hand was found to be a significantly associated on Chi-square analysis and multivariable regression (p < 0.001).
Conclusion In patients with carpal tunnel syndrome, ipsilateral TFs occurred after 6.83% of CTRs, compared with a rate of 2.7% in the nonoperative hand, making it an important possible outcome to discuss with patients. The thumb was more commonly involved in triggering in the surgical hand compared with the nonoperative hand. Patients with a history of prior TFs in either hand were more likely to develop an ipsilateral TF after CTR.
Level of Evidence This is a Level III, retrospective study.
Navigating cross-border institutional complexity: A review and assessment of multinational nonmarket strategy research
Authors: Sun Pei , Doh Jonathan P. , Rajwani Tazeeb , Siegel Donald 
Published: June 2021

AbstractMultinational enterprises are deeply engaged in nonmarket strategy (NMS), including both corporate political activity (CPA) and strategic corporate social responsibility (SCSR). In this review, we document the multinational NMS research according to contributions’ theme, method, context, theory, and level of analysis. We then develop an institutional multiplicity framework to organize our analysis of this large and fragmented body of literature. In so doing, we identify the most impactful contributions within three major themes – multinational CPA, multinational SCSR, and the integration of CPA and SCSR – and their respective subthemes, and call attention to limitations in the extant research. We also highlight promising avenues for future research, including expanding the scope of NMS to incorporate microfoundations research, integrating macrolevel scholarship on global institutions, placing greater attention on the interaction between CPA and SCSR, and incorporating multi-actor global issues and movements. Our review underscores the growing importance and missed opportunities of NMS research in the international business field.
A large beam high efficiency radio frequency neutron spin flipper
Authors: Chen W. C. , Erwin R. , Tsai P. , Hassan Md. T. , Hadad N. , Majkrzak C. F. 
Published: June 2021

A design for a radio frequency (RF) neutron spin flipper obtained from magneto-static and neutron spin transport simulations is presented. The RF flipper constructed from this design provides a flipping probability of 0.999 or better for a beam size 6 cm wide and 15 cm high and a wavelength band between 0.4 and 0.6 nm. Three permanent magnet guide field sections with air gaps provide a linear field gradient along the beam propagation direction over a large cross-sectional area. An RF oscillator based on coupling the resonant coil of a Hartley oscillator to the excitation coil was developed, which provides a higher current and, thereby, a larger RF amplitude, as compared to a conventional RF power amplifier. Two opaque He3 neutron spin filters were employed to measure the flipping probability of the flipper with very high precision. A spatially uniform flipping probability of 0.9995(2) or higher was measured over the large cross-sectional area neutron guide. This RF neutron spin flipper will be employed in a polychromatic beam reflectometer at the National Institute of Standards and Technology Center for Neutron Research. This design can be applied to other polarized neutron instruments or applications requiring a very high continuous flipping probability of the neutron spin for a large cross-sectional area beam.
Miniaturized USB-powered multi-channel module for gamma spectroscopy and imaging
Authors: Buonanno Luca , Di Vita Davide , Carminati Marco , Camera Franco , Fiorini Carlo 
Published: June 2021

LAILA is a miniaturized eight-channel electronic readout system for compact γ-ray detectors, combining high-resolution spectroscopy capability with position sensitivity. Compactness is achieved by the combination of a novel CMOS front-end ASIC (Application-Specific Integrated Circuit) for analog processing of a large signal current from Silicon PhotoMultiplier (SiPM) solid-state photodetectors, with a microcontroller-based data acquisition system. The adoption of automatic gain regulation in the gated-integrator stage of the ASIC offers an 84 dB dynamic range, combining single-photon sensitivity with an extended input photon energy range (20 keV–4 MeV, using 30 μm-cell SiPMs). Using this module with properly merged 144 SiPM pixels coupled to a 3 in.-thick lanthanum bromide scintillation crystal, a 3% energy resolution at 662 keV and 1 cm spatial resolution in the estimation of the interaction coordinates are experimentally demonstrated in this work.
Adsorbate-assisted migration of the metal atom in atomically dispersed catalysts: An ab initio molecular dynamics study
Authors: Humphrey Nicholas , Bac Selin , Mallikarjun Sharada Shaama 
Published: June 2021

We present a phenomenological study of dynamical evolution of the active site in atomically dispersed catalysts in the presence of reaction intermediates associated with CO oxidation and low-temperature water–gas shift reaction. Using picosecond ab initio molecular dynamics, we probe the initiation of adsorbate-induced diffusion of atomically dispersed platinum on rutile TiO2(110). NVT trajectories spanning 5 ps at 500 K reveal that the dynamical stability of the metal atom is governed by its local coordination to the support and adsorbate. Adsorbates that bind the strongest to Pt typically also lead to the fastest diffusion of the metal atom, and all adsorbates weaken Pt-support interactions, resulting in higher diffusion coefficients compared to bare Pt. We note, however, the absence of quantitative correlations between adsorption characteristics (Pt Bader charge, adsorbate binding energy) and ensemble-averaged quantities (diffusion coefficients). A recurring structural motif identified in several trajectories is a near-linear coordination between support oxygen, Pt, and specific adsorbates. These geometries, on account of enhanced metal support interactions, stabilize Pt and inhibit migration over picosecond timescales. We also identify hydrogen bonding events between the adsorbate and support for OH-containing groups. In the case of OH-bound Pt, for instance, we believe that short-lived H-bonds between OH and support promote Pt migration in the beginning of the NVT trajectory, while the subsequent formation of a near-linear geometry stabilizes the Pt atom despite the continued formation of short-lived hydrogen bonds. These observations are consistent with prior studies that report stabilization of isolated metal atoms in the presence of hydroxyl groups.
CALM supports clathrin-coated vesicle completion upon membrane tension increase
Authors: Willy Nathan M. , Colombo Federico , Huber Scott , Smith Anna C. , Norton Erienne G. , Kural Comert , Cocucci Emanuele 
Published: June 2021

SignificanceClathrin-coated vesicles (CCVs) are endocytic carriers responsible for the internalization of receptor-bound ligands and extracellular fluids. CCV assembly occurs by the sequential recruitment of clathrin, adaptors, and other accessory molecules that promote curvature formation. To form, CCVs need to overcome the local plasma membrane tension that varies during cell cycle, development, and cell polarization. Using quantitative fluorescence microscopy, we demonstrate that the adaptor CALM is a major determinant of CCV formation upon membrane tension increase. Since CALM is differentially expressed, our results demonstrate that competence in clathrin-mediated endocytosis is tissue specific, providing mechanistic explanation why CALM depletion strongly affects embryo development and red blood cell differentiation with minor effects in other systems.
Climate and land-use changes interact to drive long-term reorganization of riverine fish communities globally
Authors: Comte Lise , Olden Julian D. , Tedesco Pablo A. , Ruhi Albert , Giam Xingli 
Published: June 2021

Significance
Understanding the mechanisms by which biological communities are reorganized by environmental change is a key question facing ecologists. Using a global database of fish abundance time series spanning recent decades, together with community-level indices describing species temperature and flow affinities, we show that two important aspects of climate change (water temperature and streamflow alteration) are interacting with land-use modification to drive increases in the dominance of species that prefer warm- and slow-water habitats. Although these community reorganizations show substantial geographical variation, they can be explained by a combination of degree of environmental changes and initial community composition. These findings offer insights to improve ecological forecasting in the future to better inform and prioritize conservation actions in freshwater ecosystems.
Photosynthesis-independent production of reactive oxygen species in the rice bundle sheath during high light is mediated by NADPH oxidase
Authors: Xiong Haiyan , Hua Lei , Reyna-Llorens Ivan , Shi Yi , Chen Kun-Ming , Smirnoff Nicholas , Kromdijk Johannes , Hibberd Julian M. 
Published: June 2021

Significance
The ability of plants to initiate systemic responses to local biotic and abiotic stress is well known. One such example takes place after exposure to high-light episodes and involves an initial, local accumulation of reactive oxygen species (ROS) in the region exposed to excessive light. Overexcitation of the photosynthetic apparatus has long been known to lead to ROS production, but whether this is necessary and sufficient is not known. Here, we show that local synthesis of ROS also requires NADPH oxidases located in bundle-sheath strands and is not dependent on photosynthesis. As NADPH oxidases also allow the systemic ROS response, this work identifies a component that unifies both the local and systemic responses of plants to high light.
Warm nights disrupt transcriptome rhythms in field-grown rice panicles
Authors: Desai Jigar S. , Lawas Lovely Mae F. , Valente Ashlee M. , Leman Adam R. , Grinevich Dmitry O. , Jagadish S. V. Krishna , Doherty Colleen J. 
Published: June 2021

Significance
The effects of warmer nighttime temperatures (WNT) on crops are one poorly understood dimension of climate change. WNT result from the asymmetrical increase in nighttime versus daytime temperatures. In rice, WNT reduce grain yield and quality. WNT reduce the amplitude of daily temperature cycles plants use to set their circadian clock. Therefore, we examined how WNT affect the timing of molecular activities. In field-grown plants, WNT alter the daily pattern of the transcriptome. Genes with strong rhythmic expression and those under circadian control are affected most by WNT. Many candidate regulators of the disrupted genes are circadian clock associated, emphasizing the altered timing under WNT. The pathways and mechanisms identified can assist efforts to identify lines tolerant to WNT.
Regulation of Dishevelled DEP domain swapping by conserved phosphorylation sites
Authors: Beitia Gonzalo J. , Rutherford Trevor J. , Freund Stefan M. V. , Pelham Hugh R. , Bienz Mariann , Gammons Melissa V. 
Published: June 2021

Significance
We report a Dishevelled structural clamp, a β-sheet containing a conserved phosphorylation site immediately upstream of the Dishevelled, Egl-10, and Pleckstrin (DEP) domain, contacting a cognate surface on its partner DEP domain to stabilize the domain-swapped dimer. DEP dimers are essential for Wnt/β-catenin signal transduction, but because the Frizzled receptor–binding surface of the DEP monomer is masked in the dimer, domain swapping may need to be attenuated to sustain prolonged Frizzled binding that is needed to transduce noncanonical Wnt signals. Mutation of this phosphorylation site and, by implication, its phosphorylation destabilize DEP dimers, thereby disabling canonical signaling. We propose that the regulation of DEP domain swapping by phosphorylation provides a mechanism whereby Dishevelled could switch off canonical Wnt signals.
Cermet materials reinforced with a small addition of spinel nanoparticles for molten salt power systems
Authors: Agureev L E , Ivanov B S , Laptev I N , Ivanov A V , Ashmarin A A 
Published: June 2021

Abstract
This work is devoted to developing of new cermets for molten-salt power systems, promising for use in aviation, rocket and space technology, and power engineering. The production of cermets in the nickel-aluminum alloy system - 35 wt. % aluminum oxide by the method of mechanical activation and spark plasma sintering was carried out. It was found that the addition of 5 wt. % yttrium oxide, as well as small quantities (0.1 wt. %) of aluminum-magnesium spinel nanoparticles, increase the strength of the cermet at elevated temperatures. Cermets have high strength at room and elevated temperatures, which amounted to 480-530 MPa at 20 °C and 430-470 MPa at 750 °C. The micro structure of cermets was characterized by the presence of elliptical regions, the grains in which were significantly smaller than the grains in the surrounding matrix. This structure allows to effectively harden the material because elliptical areas are obstacles to crack propagation. Elliptical zones have length ranged 100 to 200 μm and width 5 to 20 μm. It was found that the material of the NiAl-Al2O3 system at 20 °C and 800 °C contains the phases NiAl, Al2O3, and Ni2Al3. Composite composition NiAl-Al2O3-Y2O3 at 20 °C and 800 °C retains the three-phase composition of NiAl, Al2O3, and Y2O3. Both materials are stable up to 800 °C.
Numerical study of the main rotor steep descent modes in the vortex ring state area
Authors: Makeev P , Ignatkin Yu , Shomov A 
Published: June 2021

Abstract
The research has been focused on aerodynamic characteristics of the Mi-8 helicopter main rotor in the hover and steep descent modes at rotor angles of attack αR = 90-30º, including vortex ring state area. The research is based on the original free wake model developed by the authors at Moscow Aviation Institute. Total and distributed aerodynamic characteristics, rotor wake shapes and streamlines have been calculated and analyzed. The vortex ring state area borders in the Vx-Vy
(horizontal and vertical flight speed components) coordinates have been defined. Five criteria are used: growth of the required rotor blade pitch angle; growth of rotor power consumption with a fixed rotor thrust; increase of the averaged value of the induced velocities and amplitudes of the rotor thrust and torque pulsations. The calculation results have been compared with experimental and calculation data of other authors and indicate sufficient reliability and applicability of used free wake model for calculation and analysis of the vortex ring state modes of helicopter rotor. The results presented in the paper can also significantly supplement the available results of experimental and computational studies of the helicopter rotor operation at steep descent modes in the vortex ring state area.
Fast prediction method of aircraft noise with distributed propulsion in the far field
Authors: Chen B , Yakovlev A A , Moshkov P A 
Published: June 2021

Abstract
Based on the known methods for calculating the propeller noise, a fast prediction method of the distributed propulsion noise is proposed. The method takes into account only the component of tonal noise from the load. To test the adequacy of the model, the GL-10 model was used, a concept of an aircraft developed by National Aeronautics and Space Administration to test distributed propulsion as well as vertical take-off and landing maneuvers. The comparison showed a good agreement between the results obtained and the data for the GL-10 model.
Local coordinates in problem of the orbital stability of pendulum-like oscillations of a heavy rigid body in the Bobylev–Steklov case
Authors: Bardin B S 
Published: June 2021

Abstract
In this paper a method is proposed for constructing a nonlinear canonical change of variables, which makes it possible to avoid the singularity when introducing local coordinates in the neighborhood of periodic orbit of the autonomous Hamiltonian system with two degrees of freedom. As an application of this method, orbital stability of pendulum-like oscillations of a heavy rigid body with a fixed point in the Bobylev-Steklov case is investigated. In particular, it is performed a nonlinear study of the orbital stability for the so-called case of degeneracy, when it is necessary to take into account terms of order six in the Hamiltonian expansion in a neighborhood of the unperturbed periodic orbit.
Research of synthetic corundum in plunger pairs of power hydraulics
Authors: Puzanov A V , Kosorukova O V , Kotov V V 
Published: June 2021

Abstract
The development of hydraulic technologies requires the use of new structural materials. The study used the main provisions of the theory of positive displacement hydraulic machines and hydraulic drives and methods for their solution using multiphysics software. The article presents the results of a comparative analysis of the performance of plunger pairs made of synthetic corundum in hydraulic machines of power drives. The effect of using synthetic corundum in hydraulic power drives is determined. Analysis of the obtained results makes it possible to conclude that when using synthetic sapphire as a plunger material, taking into account the preservation of structural geometry, maximum stresses are reduced by 4.7%, contact stresses by 4.7%, and deformation by 44%, with a decrease in weight by 49%.
Experimental study of nonlinearity of the mechanical properties of layered woven CFRP
Authors: Pavlova S A , Kishov E A , Pavlov A A , Selivanov S E 
Published: June 2021

Abstract
The article presents the results of an experimental study of the nonlinearity of the mechanical properties of layered composite materials made by vacuum infusion based on carbon fabrics and an epoxy resin. The analysis of existing approaches to the modeling of composite materials considering their physical nonlinearity is carried out. A method is proposed for taking into account the degradation of the properties of a composite material, based on the fact that the damage parameters are replaced by the functional dependence of elastic constants on deformations, based on experimental data. The results of the application of this method are given for the test data analysis of two types of layered woven carbon-fiber-reinforced-plastics with a cross-hatching structure.
Forecasting new product demand using machine learning
Authors: Smirnov P S , Sudakov V A 
Published: June 2021

Abstract
The problem of predicting demand for a new product based on its characteristics and description is critical for various industrial enterprises, wholesale and retail trade and, especially, for modern highly competitive sector of air transportation, since solving this problem will optimize production, management and logistics in order to maximize profits and minimize costs. Classic demand forecasting methods assume the availability of sales data for a certain historical period, which is obviously not the case when concerning a new product. Most research papers are limited either to a specific category of goods or use sophisticated marketing methods. This paper proposes the use of machine learning methods. We used data about new product demand from the Ozon online store. The input data of the algorithm are characteristics such as the price, name, category and text description of the product. To solve the regression problem, various implementations of the gradient boosting algorithm were used, such as XGBoost, Light GBM, Cat Boost. The forecast accuracy is now about 4.00. The proposed system can be used both independently and as part of another more complex system.
Smooth approximation of probability and quantile functions: vector generalization and its applications
Authors: Torishnyi R , Sobol V 
Published: June 2021

AbstractIn this paper, we provide an approximation method for probability function and its derivatives, which allows using the first order numerical algorithms in stochastic optimization problems with objectives of that type. The approximation is based on the replacement of the indicator function with a smooth differentiable approximation – the sigmoid function. We prove the convergence of the approximation to the original function and the convergence of their derivatives to the derivatives of the original ones. This approximation method is highly universal and can be applied in other problems besides stochastic optimization – the approximation of the kernel of the probability measure, considered in the present article as an example, and the confidence absorbing set approximations.