bluuebunny/crossref_metadata_2025_split huggingface dataset:
Estimating the repercussions from China's export value‐added tax rebate policy*
Authors: Gourdon Julien , Hering Laura , Monjon Stéphanie , Poncet Sandra 
Published: June 2021

AbstractOur study shows that China's export value‐added tax (VAT) rebate system is a major industrial policy that affects its exports. We use export data at the HS6 product level for a panel of 329 Chinese cities over the 2003–2012 period to assess how changes in the export VAT tax have affected China's export performance. We consider different trade margins in terms of volumes, prices, and the number of countries served. To counter endogeneity, we exploit variations in the expected impact of the export VAT rebates by trade regime, which come from an eligibility rule disqualifying certain export flows from the rebates. Our results suggest that a 1 percent decline in the export VAT tax leads to a 7.2 percent relative increase in eligible export values at the city level. This effect is due to an adjustment of quantities and the number of foreign markets served while the average unit values of exports remain unchanged.
Detrimental effects of prior self‐control exertion on subsequent sporting skill performance
Authors: Boat Ruth , Sunderland Caroline , Cooper Simon B. 
Published: June 2021

The prior exertion of self‐control has previously been shown to negatively affect physical performance, yet the effects on complex sporting skill performance have not been examined. Therefore, this study examined whether prior self‐control exertion influences performance on a field hockey task, alongside measuring plasma cortisol concentration and attention as potential mechanisms to explain any effects.Following familiarization, 13 male hockey players (20 ± 1 years) participated in a randomized, order‐balanced, crossover design. For the manipulation of self‐control, participants completed an incongruent (self‐control exertion trial) or a congruent (control trial) Stroop task. Skill performance was assessed using a field hockey skills task. Capillary blood samples, for the determination of plasma cortisol concentration, were taken at baseline, post‐Stroop task, and post‐field hockey skills task. Cognitive tests of attention (RVIP and Flanker tasks) were completed following the field hockey skills task.Participants made more errors in the latter stages of the field hockey skills task following self‐control exertion (trial*time interaction,p = 0.041). Participants also made more errors on the RVIP task following self‐control exertion (p = 0.035); yet the time taken to complete the hockey skills task, performance on the flanker task, and plasma cortisol concentrations were unaffected (allp > 0.05).Overall, these findings suggest that prior self‐control exertion has detrimental effects on subsequent sporting skill performance (more errors made on the field hockey task), which may be explained by poorer sustained attention (lower accuracy on the RVIP task). This suggests that athletes should aim to avoid self‐control exertion before a competitive match to optimize performance.
The transcriptional dynamics during de novo shoot organogenesis of Ma bamboo (Dendrocalamus latiflorus Munro): implication of the contributions of the abiotic stress response in this process
Authors: Tu Min , Wang Wenjia , Yao Nan , Cai Changyang , Liu Yuanyuan , Lin Chentao , Zuo Zecheng , Zhu Qiang 
Published: June 2021

SummaryDe novo shoot organogenesis is an important biotechnological tool for fundamental studies in plant. However, it is difficult in most bamboo species, and the genetic control of this highly dynamic and complicated regeneration process remains unclear. In this study, based on an in‐depth analysis at the cellular level, the shoot organogenesis from calli of Ma bamboo (Dendrocalamus latiflorus Munro) was divided into five stages. Subsequently, single‐molecule long‐read isoform sequencing of tissue samples pooled from all five stages was performed to generate a full‐length transcript landscape. A total of 83 971 transcripts, including 73 209 high‐quality full‐length transcripts, were captured, which served as an annotation reference for the subsequent RNA sequencing analysis. Time‐course transcriptome analysis of samples at the abovementioned five stages was conducted to investigate the global gene expression atlas showing genome‐wide expression of transcripts during the course of bamboo shoot organogenesis. K‐means clustering analysis and stage‐specific transcript identification revealed important dynamically expressed transcription regulators that function in bamboo shoot organogenesis. The majority of abiotic stress‐responsive genes altered their expression levels during this process, and further experiments demonstrated that exogenous application of moderate but not severe abiotic stress increased the shoot regeneration efficiency. In summary, our study provides an overview of the genetic flow dynamics during bamboo shoot organogenesis. Full‐length cDNA sequences generated in this study can serve as a valuable resource for fundamental and applied research in bamboo in the future.
The lysophospholipid‐binding molecule CD1D is not required for the alloimmunization response to fresh or stored RBCs in mice despite RBC storage driving alterations in lysophospholipids
Authors: Medved Jelena , Knott Brittney M. , Tarrah Soraya N. , Li Andria N. , Shah Neha , Moscovich Tamara C. , Boscia Alexis R. , Salazar Juan E. , Santhanakrishnan Manjula , Hendrickson Jeanne E. , Fu Xiaoyun , Zimring James C. , Luckey Chance John 
Published: June 2021

AbstractBackgroundDespite the significant adverse clinical consequences of RBC alloimmunization, our understanding of the signals that induce immune responses to transfused RBCs remains incomplete. Though RBC storage has been shown to enhance alloimmunization in the hen egg lysozyme, ovalbumin, and human Duffy (HOD) RBC alloantigen mouse model, the molecular signals leading to immune activation in this system remain unclear. Given that the nonclassical major histocompatibility complex (MHC) Class I molecule CD1D can bind to multiple different lysophospholipids and direct immune activation, we hypothesized that storage of RBCs increases lysophospholipids known to bind CD1D, and further that recipient CD1D recognition of these altered lipids mediates storage‐induced alloimmunization responses.Study Design and MethodsWe used a mass spectrometry‐based approach to analyze the changes in lysophospholipids that are induced during storage of mouse RBCs. CD1D knockout (CD1D‐KO) and wild‐type (WT) control mice were transfused with stored HOD RBCs to measure the impact of CD1D deficiency on RBC alloimmunization.ResultsRBC storage results in alterations in multiple lysophospholipid species known to bind to CD1D and activate the immune system. Prior to transfusion, CD1D‐deficient mice had lower baseline levels of polyclonal immunoglobulin (IgG) relative to WT mice. In response to stored RBC transfusion, CD1D‐deficient mice generated similar levels of anti‐HOD IgM and anti‐HOD IgG.ConclusionAlthough storage of RBCs leads to alteration of several lysophospholipids known to be capable of binding CD1D, storage‐induced RBC alloimmunization responses are not impacted by recipient CD1D deficiency.
β‐Catenin is required for optimal exercise‐ and contraction‐stimulated skeletal muscle glucose uptake
Authors: Masson Stewart W. C. , Woodhead Jonathan S. T. , D'Souza Randall F. , Broome Sophie C. , MacRae Caitlin , Cho Hyun C. , Atiola Robert D. , Futi Tumanu , Dent Jessica R. , Shepherd Peter R. , Merry Troy L. 
Published: June 2021

Key points
Loss of β‐catenin impairs in vivo and isolated muscle exercise/contraction‐stimulated glucose uptake.
β‐Catenin is required for exercise‐induced skeletal muscle actin cytoskeleton remodelling.
β‐Catenin675 phosphorylation during exercise may be intensity dependent.
AbstractThe conserved structural protein β‐catenin is an emerging regulator of vesicle trafficking in multiple tissues and supports insulin‐stimulated glucose transporter 4 (GLUT4) translocation in skeletal muscle by facilitating cortical actin remodelling. Actin remodelling may be a convergence point between insulin and exercise/contraction‐stimulated glucose uptake. Here we investigated whether β‐catenin is involved in regulating exercise/contraction‐stimulated glucose uptake. We report that the muscle‐specific deletion of β‐catenin induced in adult mice (BCAT‐mKO) impairs both exercise‐ and contraction (isolated muscle)‐induced glucose uptake without affecting running performance or canonical exercise signalling pathways. Furthermore, high intensity exercise in mice and contraction of myotubes and isolated muscles led to the phosphorylation of β‐cateninS675, and this was impaired by Rac1 inhibition. Moderate intensity exercise in control and Rac1 muscle‐specific knockout mice did not induce muscle β‐cateninS675 phosphorylation, suggesting exercise intensity‐dependent regulation of β‐cateninS675. Introduction of a non‐phosphorylatable S675A mutant of β‐catenin into myoblasts impaired GLUT4 translocation and actin remodelling stimulated by carbachol, a Rac1 and RhoA activator. Exercise‐induced increases in cross‐sectional phalloidin staining (F‐actin marker) of gastrocnemius muscle was impaired in muscle from BCAT‐mKO mice. Collectively our findings suggest that β‐catenin is required for optimal glucose transport in muscle during exercise/contraction, potentially via facilitating actin cytoskeleton remodelling.
Modeling the Time Duration Until the Adoption of Residential Rooftop Solar Photovoltaic Systems
Authors: Hamed Mohammad M. , Al-Masri Adnan , Dalala Zakariya M. , AlSaleh Raed J. 
Published: June 2021

AbstractThis paper addresses two key decisions by households to adopt rooftop solar photovoltaic (PV) systems and the length of time until the adoption. It is hypothesized that these decisions are controlled by different mechanisms and should be modeled independently. This is the first attempt to formally estimate the length of time until the adoption to the authors’ knowledge. Two models are presented in this paper. The first is a mixed logit to model the respondents’ intention to adopt a solar PV system, and the second is a random parameters ordered probit to estimate the length of time until the adoption. Estimation results show that the number of electrical appliances, the households’ interest to harness economic benefits, and the type and characteristics of the dwelling motivate households to select a shorter duration until the adoption. Results also show that the majority (77.80%) of respondents with electric vehicles are highly likely to adopt a rooftop system and select a shorter time duration until adoption. In addition, a significant proportion (83.23%) of respondents with high monthly electricity bills is more likely to adopt a rooftop PV system and select a shorter time duration. Results show that the average monthly electricity bill for households with a PV system has decreased by 74.04%. Reducing monthly electricity bills is a key instigator for adopting a rooftop PV system. Our results confirm the hypothesis that even if there is an intent to adopt a rooftop solar PV system, the length of time until the adoption is controlled by another mechanism.
Real-time prediction of Litho-facies from drilling data using an Artificial Neural Network: A comparative field data study with optimizing algorithms
Authors: Agrawal Romy , Malik Aashish , Samuel Robello , Saxena Amit 
Published: June 2021

Abstract
The lithology of the formation is known to affect the drilling operation. Litho-facies help in the quantification of the formation properties, which optimizes the drilling parameters. The proposed work uses the artificial neural network algorithm and an optimizer to develop a working model for predicting the lithology of any formation within the study area in real-time. The proposed model is trained using the formation data comprising 15-dependent variables from the Eagleford region of the United States of America. It builds a method for measuring or forecasting litho-facies in real-time when drilling through a formation. It uses general drilling parameters for better precision, including Rate of Penetration, Rotation per minute, Surface Torque, Differential Pressure, Gamma Ray Correlation, and a d-exponent correlation function. The proposed model compares and assesses various first-order optimization algorithm's efficiency, such as Adaptive Moment Estimation, Adaptive Gradient, Root Mean Square Propagation, and Stochastic Gradient Descent with traditional artificial neural network in quantitative litho-facies detection. The model can predict the complex lithology for vertical/inclined/horizontal wellbores in real-time, making it a novel algorithm in the industry. The developed algorithm illustrates an accuracy of 86 % using Adam optimizer when tested with the existing data and improves as the model is trained with more data.
A New Uncertainty Analysis-Based Framework for Data-Driven Computational Mechanics
Authors: Guo Xu , Du Zongliang , Liu Chang , Tang Shan 
Published: June 2021

Abstract
In this article, a new uncertainty analysis-based framework for data-driven computational mechanics (DDCM) is established. Compared with its practical classical counterpart, the distinctive feature of this framework is that uncertainty analysis is introduced into the corresponding problem formulation explicitly. Instated of only focusing on a single solution in phase space, a solution set is sought for to account for the influence of the multisource uncertainties associated with the data set on the data-driven solutions. An illustrative example provided shows that the proposed framework is not only conceptually new but also has the potential of circumventing the intrinsic numerical difficulties pertaining to the classical DDCM framework.
Mechanics of Biohybrid Valveless Pump-Bot
Authors: Li Zhengwei , Saif M. Taher A. 
Published: June 2021

Abstract
Engineering living systems is a rapidly emerging discipline where the functional biohybrid robotics (or “Bio-bots”) are built by integrating of living cells with engineered scaffolds. Inspired by embryonic heart, we presented earlier the first example of a biohybrid valveless pump-bot, an impedance pump, capable of transporting fluids powered by engineered living muscle tissues. The pump consists of a soft tube attached to rigid boundaries at the ends, and a muscle ring that squeezes the tube cyclically at an off-center location. Cyclic contraction results in a net flow through the tube. We observed that muscle force occasionally buckles the tube in a random fashion, i.e., similar muscles do not buckle the tube consistently. In order to explain this anomaly, here we develop an analytical model to predict the deformation and stability of circular elastic tubes subjected to a uniform squeezing force due to a muscle ring (like a taught rubber band). The prediction from the model is validated by comparing with experiments and finite element analysis. The nonlinear model reveals that the circular elastic tube cannot buckle irrespective of muscle force. Buckling state can be reached and sustained by bending and folding the tube before applying the muscle ring. This imperfection may appear during assembly of the pump or from nonuniform thickness of the muscle ring. This study provides design guides for developing advanced biohybrid impedance pumps for diverse applications.
Biomechanical Study and Prediction of Lower Extremity Joint Movements Using Bayesian Regularization-Based Backpropagation Neural Network
Authors: Narayan Jyotindra , Dwivedy Santosha K. 
Published: June 2021

Abstract
This work aims to estimate the lower-limb joint angles in the sagittal plane using Microsoft Kinect-based experimental setup and apply an efficient machine learning technique for predicting the same based on kinematic, spatiotemporal, and biological parameters. Ten healthy participants from 19 to 50 years (33 ± 11.24 years) were asked to walk in front of the Kinect camera. Based on the skeleton image, the biomechanical hip, knee, and ankle joint angles of the lower-limb were measured using ni-labview. Thereafter, two Bayesian regularization-based backpropagation multilayer perceptron neural network models were designed to predict the joint angles in the stance and swing phase. The joint angles of two individuals, as a testing dataset, were predicted and compared with the experimental results. The test correlation coefficient for predicted joint angles has shown a promising effect of the proposed neural network models. Finally, a qualitative comparison was presented between the joint angles of healthy people and unhealthy people of similar age groups.
Authigenic berthierine and incipient chloritization in shallowly buried sandstone reservoirs: Key role of the source-to-sink context
Authors: Virolle Maxime , Brigaud Benjamin , Beaufort Daniel , Patrier Patricia , Abdelrahman Eid , Thomas Hadrien , Portier Eric , Samson Yann , Bourillot Raphaël , Féniès Hugues 
Published: June 2021

Abstract
Chlorite is recognized worldwide as a key mineral that inhibits the development of quartz cement in deeply buried sandstone reservoirs. Iron-rich chlorite is mainly formed by the transformation of a precursor clay mineral; however, few studies have focused on the early stages before the crystallization of chlorite. This study analyzed shallowly buried (400–1000 m) coastal sandstones from within the Wealden Group of the Paris Basin. Berthierine, a 7 Å trioctahedral clay mineral belonging to the serpentine group, approximatively with same chemistry as chlorite but a different crystal structure, has been identified in a 900-m-deep well but not in a 400–600-m-deep well. Berthierine has mainly been observed as clay coatings around detrital grains with a typical honeycomb texture. Nanopetrographic observations suggest that the honeycomb textural organization of the clay particles found in deeper buried sandstone reservoirs (&gt;1500 m) is acquired from a berthierine precursor at shallow depths. However, small amounts of quartz overgrowths are observed on the surface of detrital grains at shallow depths and low temperature (below 40 °C), and it is believed that precursor berthierine coatings are primarily responsible for the inhibition of quartz overgrowths before Fe-rich chlorite is formed. This suggests that the key mineral primarily controlling the reservoir quality of deeply buried sandstone reservoirs is berthierine rather than iron-rich chlorite, which challenges the commonly accepted assertion that chlorite coating is the main process that inhibits quartz overgrowths. The source-to-sink context of the Paris Basin during the Early Cretaceous was decisive with respect to the supply of sands and berthierine clay precursors (in particular kaolinite and iron-rich, hydroxy-interlayered clay minerals) to the center of the basin.
Presymptomatic transmission of SARS-CoV-2 infection: a secondary analysis using published data
Authors: Casey-Bryars Miriam , Griffin John , McAloon Conor , Byrne Andrew , Madden Jamie , Mc Evoy David , Collins Áine , Hunt Kevin , Barber Ann , Butler Francis , Lane Elizabeth Ann , O'Brien Kirsty , Wall Patrick , Walsh Kieran , More Simon John 
Published: June 2021

ObjectiveTo estimate the proportion of presymptomatic transmission of SARS-CoV-2 infection that can occur, and the timing of transmission relative to symptom onset.Setting/designSecondary analysis of international published data.Data sourcesMeta-analysis of COVID-19 incubation period and a rapid review of serial interval and generation time, which are published separately.ParticipantsData from China, the Islamic Republic of Iran, Italy, Republic of Korea, Singapore and Vietnam from December 2019 to May 2020.MethodsSimulations were generated of incubation period and of serial interval or generation time. From these, transmission times relative to symptom onset, and the proportion of presymptomatic transmission, were estimated.Outcome measuresTransmission time of SARS-CoV-2 relative to symptom onset and proportion of presymptomatic transmission.ResultsBased on 18 serial interval/generation time estimates from 15 papers, mean transmission time relative to symptom onset ranged from −2.6 (95% CI −3.0 to –2.1) days before infector symptom onset to 1.4 (95% CI 1.0 to 1.8) days after symptom onset. The proportion of presymptomatic transmission ranged from 45.9% (95% CI 42.9% to 49.0%) to 69.1% (95% CI 66.2% to 71.9%).ConclusionsThere is substantial potential for presymptomatic transmission of SARS-CoV-2 across a range of different contexts. This highlights the need for rapid case detection, contact tracing and quarantine. The transmission patterns that we report reflect the combination of biological infectiousness and transmission opportunities which vary according to context.
Efficacy and safety of hyperbaric oxygen therapy for moderate-to-severe ulcerative colitis: a protocol for a systematic review and meta-analysis
Authors: Luo Lihong , Qing Lei , Yao Chengjiao , Liu Dongying , Li Yilin , Li Tinglin , Feng Peimin 
Published: June 2021

IntroductionUlcerative colitis (UC) is a type of inflammatory bowel disease, and 62% of patients with UC felt that it is difficult for them to live a normal life. Furthermore, some researches have shown that about 15% of patients with UC undergo at least one extreme clinical course in their lifetime, and 10%–30% of patients with UC oblige colectomy. Although many investigations have demonstrated that HBO2has a beneficial impact on UC treatment, a systematic review and meta-analysis are unavailable. Therefore, a meta-analysis is essential to assess the efficacy and safety of HBO2in treating UC.Methods and analysisA systematic search plan will be performed in the following seven databases with a restriction of time from inception to September 2020 to filter the eligible studies: PubMed, Web of Science, Embase, Cochrane Library, China National Knowledge Infrastructure, Chinese Scientific Journal Database (VIP) and Chinese Biomedical Database WanFang. Other related resources will be also searched. Two independent reviewers will choose eligible researches and extract data. The risk of bias will be evaluated based on Cochrane Collaboration’s Risk of Bias tool and Newcastle-Ottawa Scale. Eventually, a systematic review and meta-analysis will be performed via the Review Manager V.5.3 statistical software and STATA V.14.0 software.Ethics and disseminationThis study will not involve the individual patient and any ethical problems since its outcomes are based on published data. Therefore, no ethical review and approval are required. We plan to publish the study in a peer-reviewed journal.PROSPERO registration numberCRD42020210244.