bluuebunny/crossref_metadata_2025_split huggingface dataset:
Beta‐Adrenergic Blockers as a Potential Treatment for COVID‐19 Patients
Authors: Vasanthakumar Natesan 
Published: August 2020

AbstractMore than 15 million people have been affected by coronavirus disease 2019 (COVID‐19) and it has caused 640 016 deaths as of July 26, 2020. Currently, no effective treatment option is available for COVID‐19 patients. Though many drugs have been proposed, none of them has shown particular efficacy in clinical trials. In this article, the relationship between the Adrenergic system and the renin‐angiotensin‐aldosterone system (RAAS) is focused in COVID‐19 and a vicious circle consisting of the Adrenergic system‐RAAS‐Angiotensin converting enzyme 2 (ACE2)‐severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) (which is referred to as the “ARAS loop”) is proposed. Hyperactivation of the ARAS loop may be the underlying pathophysiological mechanism in COVID‐19, and beta‐adrenergic blockers are proposed as a potential treatment option. Beta‐adrenergic blockers may decrease the SARS‐CoV‐2 cellular entry by decreasing ACE2 receptors expression and cluster of differentiation 147 (CD147) in various cells in the body. Beta‐adrenergic blockers may decrease the morbidity and mortality in COVID‐19 patients by preventing or reducing acute respiratory distress syndrome (ARDS) and other complications. Retrospective and prospective clinical trials should be conducted to check the validity of the hypothesis. Also see the video abstract here https://youtu.be/uLoy7do5ROo.
Dosimetric properties of lithium borate glass doped with dysprosium
Authors: El‐Faramawy Nabil , El‐Naggar Ahmed , Woda Clemens , El‐Kinawy Mohamed 
Published: August 2020

AbstractCharacterization of thermoluminescence (TL) properties of lithium borate glass samples doped with different concentrations of dysprosium (Dy) was carried out. Samples were prepared using a melting method at 1100°C and irradiated with β‐particles. The glass samples doped with 0.1% Dy displayed the best TL dosimetric properties compared with other compositions. Deconvoluted analyses of the glow curves displayed five overlapping TL glow peaks located between 392.0 and 510.3 K. A good linear TL dose–response for β‐particles was obtained in the dose range 66.6 mGy to 33.3 Gy. The minimum detectible dose was evaluated to be 205.4 μGy and samples revealed thermal fading in 312 h to 29% of their original value.
On the conceptualization and measurement of dynamic capabilities for sustainability: Building theory through a systematic literature review
Authors: Buzzao Giacomo , Rizzi Francesco 
Published: August 2020

AbstractWe performed a systematic literature review to explore and understand how the 23‐year long debate about dynamic capabilities has addressed sustainability issues. Based on this, we propose a unifying framework that distinguishes different facets of dynamic capabilities for sustainability (DCsS) based on the different types of performance they are more suitable to predict. The theoretical contribution is twofold. First, we add to the literature by highlighting the dependence of different forms of DCsS on different levels of the centrality of sustainability outcomes in corporate strategies. Second, we shed light on the operationalizations of DCsS by providing guidance on the adoption of pertinent constructs and measurement models. The review concludes with a discussion of the managerial implications of the proposed conceptual framework to help decision makers better understand, which strategic moves to make to achieve their intended sustainability goals.
Acknowledging the use of human cadaveric tissues in research papers: Recommendations from anatomical journal editors
Authors: Iwanaga Joe , Singh Vishram , Ohtsuka Aiji , Hwang Youngil , Kim Hee‐Jin , Moryś Janusz , Ravi Kumar Satish , Ribatti Domenico , Trainor Paul A. , Sañudo José Ramón , Apaydin Nihal , Şengül Gülgün , Albertine Kurt H. , Walocha Jerzy A. , Loukas Marios , Duparc Fabrice , Paulsen Friedrich , Del Sol Mariano , Adds Philip , Hegazy Ahmed , Tubbs R. Shane 
Published: August 2020

AbstractResearch within the anatomical sciences often relies on human cadaveric tissues. Without the good will of these donors who allow us to use their bodies to push forward our anatomical knowledge, most human anatomical research would come to a standstill. However, many research papers omit an acknowledgement to the donor cadavers or, as no current standardized versions exist, use language that is extremely varied. To remedy this problem, 20 editors‐in‐chiefs from 17 anatomical journals joined together to put together official recommendations that can be used by authors when acknowledging the donor cadavers used in their studies. The goal of these recommendations is to standardize the writing approach by which donors are acknowledged in anatomical studies that use human cadaveric tissues. Such sections in anatomical papers will not only rightfully thank those who made the donation but might also encourage, motivate, and inspire future individuals to make such gifts for the betterment of the anatomical sciences and patient care.
Construction of a lipid metabolism‐related and immune‐associated prognostic signature for hepatocellular carcinoma
Authors: Hu Bo , Yang Xiao‐Bo , Sang Xin‐Ting 
Published: August 2020

AbstractBackgroundHepatocellular carcinoma (HCC) is one of the most lethal malignancies. We aimed to identify a robust lipid metabolism‐related signature associated with the HCC microenvironment to improve the prognostic prediction of HCC patients.MethodsWe analyzed the gene expression profiles of lipid metabolism from Molecular Signatures Database and information of patients from The Cancer Genome Atlas. Gene set variation analysis (GSVA), gene set enrichment analysis (GSEA), and principal component analysis (PCA) were employed for functional annotation. Quantitative real‐time polymerase chain reaction (qRT‐PCR) was employed to verify the expression of model genes in HCC and adjacent tissues.ResultsAs a result, a lipid metabolism‐related signature consisting of acyl‐CoA synthetase long‐chain family member 6 (ACSL6), lysophosphatidylcholine acyltransferase 1, phospholipase A2 group 1B, lecithin‐cholesterol acyltransferase (LCAT), and sphingomyelin phosphodiesterase 4 (SMPD4) was identified among HCC patients. Lysophosphatidylcholine acyltransferase 1, PLA2G1B, and SMPD4 were proved significantly high expression while ACSL6 and LCAT were remarkably low expression in our 15 pairs of matched HCC and normal tissues by qRT‐PCR. Under different conditions, the overall survival (OS) of patients in low‐risk group was prolonged than that in high‐risk group. Moreover, the as‐constructed signature was an independent factor, which was remarkably associated with gender, histologic grade, and platelet level of HCC patients. In addition, the receiver operating characteristic (ROC) curve analysis confirmed the good potency of the model. Functional enrichment analysis further revealed that lower fatty acid (FA) oxidation and higher infiltration of immunocytes were detected in patients from the high‐risk group compared with those in the low‐risk group.ConclusionsOur findings indicate that the lipid metabolism‐related signature shows prognostic significance for HCC.
Community identity as a mediator of the relationship between socioeconomic status and altruistic behaviour in Chinese residents
Authors: Wang Yanli , Yang Chao , Hu Xiaoyong , Chen Hong 
Published: August 2020

AbstractSocioeconomic status is related to altruistic behaviour, but the link between them remains controversial. The present study explored the link between socioeconomic status and altruistic behaviour, as well as the psychological mechanism between them. We recruited 1,052 residents from 34 provinces in China to investigate the relationship between socioeconomic status and altruistic behaviour and the mediating mechanism. Results showed that objective socioeconomic status was positively related to altruistic behaviour. Subjective socioeconomic status was positively associated with community identity and altruistic behaviour. Community identity mediated the relationship between subjective socioeconomic status and altruistic behaviour. The findings suggest that enhancing individuals' community identity or subjective status perception can effectively increase their altruistic behaviour.
Collaborative competence, social capital, and mental health: A cross‐sectional analysis of a community‐based intervention for older adults
Authors: Ehsan Annahita , Sommet Nicolas , Morselli Davide , Spini Dario 
Published: August 2020

AbstractSocial capital interventions for the mental health of older adults have been inconclusive to date, and have rarely investigated the psychological resources that are important to having social capital. This study focused on the “Neighborhoods in Solidarity” (NS), which are a series of Swiss community‐based interventions that aim to empower older adults to participate in their communities. Our goal was to understand whether the NS were associated with collaborative competence, social capital, and subsequently, symptoms of depression. Cross‐sectional data were collected from 947 individuals aged 55 and over (Mage = 68.66, SD = 9.04) in 10 Swiss neighbourhoods (five with the NS [n = 479] and five control neighbourhoods [n = 468]). Structural equation modelling was used to model the relationship between the NS intervention, collaborative competence, cognitive and structural dimensions of social capital, and symptoms of depression (measured by the CESD‐R‐10). Individual participation in the NS had total and indirect effects on symptoms of depression via collaborative competence and both social capitals. These findings suggest that existing community‐based interventions can be indirectly associated with better mental health outcomes in the ageing population.
Self‐tracking in effortful activities: Gender differences in consumers' task experience
Authors: Jin Daoyan , Halvari Hallgeir , Maehle Natalia , Niemiec Christopher P. 
Published: August 2020

AbstractDespite the increasing use of self‐tracking technologies, surprisingly little empirical research has examined the effect of self‐tracking in effortful activities on consumers' task experience. Accordingly, the present research examined the moderating role of gender in the effect of self‐tracking in effortful activities on perceived competence and task experience (namely, enjoyment and subjective vitality). Across three experiments, results suggested that self‐tracking in effortful activities increases the perceived competence, enjoyment, and subjective vitality of females more than males, and that perceived competence explains these interaction effects. Interestingly, an experimental manipulation designed to prompt overestimation of abilities attenuated these positive effects among females. As such, the present research contributes to the literatures on self‐tracking and feedback instrumentality, and offers important practical implications for marketers.
High‐risk pulmonary embolism with out‐of‐hospital cardiac arrest: Acute multidisciplinary approach leading to surgical embolectomy with good clinical outcome
Authors: Engholm Morten , Andersen Asger , Eiskjær Hans , Klaaborg Kaj Erik , Thim Troels 
Published: August 2020

AbstractPercutaneous pulmonary angiography may be used for early diagnosis of pulmonary embolism in the hemodynamic unstable patient. Pulmonary embolectomy is an effective treatment option in patients with acute high‐risk pulmonary embolism.

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Effects of titanium dispersion state on distribution and reactivity of active centers in propylene polymerization with MgCl2‐supported Ziegler‐Natta catalysts: A kinetic study based on active center counting
Authors: Jiang Baiyu , Zhang Biao , Guo Yintian , Ali Amjad , Guo Wenqi , Fu Zhisheng , Fan Zhiqiang 
Published: August 2020

AbstractKinetics of propylene polymerization with two TiCl4/MgCl2 model catalysts of different Ti load (Cat‐1: Ti 0.1 wt%; Cat‐2: Ti 1.0 wt%) was investigated in this work. Time‐dependent variations of active centers fraction ([C*]/[Ti]) and active center distribution of the two catalysts were compared. In propylene polymerization with Cat‐1, [C*]/[Ti] was only 7.8 % in the initial stage, but increased for more than three times in reaction period of 600 s. Propylene polymerization with Cat‐2 had much lower [C*]/[Ti]. Active center distributions of the two catalysts were markedly different. Cat‐1 has evidently higher proportion of aspecific active centers and less isospecific ones than that of Cat‐2. These catalysts also showed different time‐dependent variations of active center distribution. The chain propagation rate constant of isospecific centers in Cat‐2 was evidently higher than that in Cat‐1, but propagation rate constants of either aspecific and medium‐isospecific centers were only slightly changed by enhancing Ti content of the catalyst. The results suggest that isospecific centers are mainly originated from clustered Ti species, but non‐clustered Ti species are the main source of active centers with lower stereoselectivity. By considering factors like dispersion states of Ti species and release of shielded active species through disintegration of catalyst particles, active center models have been proposed to explain the different kinetic behaviors of the two model catalysts.
Revisiting Machine Learning Predictions for Oxidative Coupling of Methane (OCM) based on Literature Data
Authors: Nishimura Shun , Ohyama Junya , Kinoshita Takaaki , Dinh Le Son , Takahashi Keisuke 
Published: August 2020

AbstractMachine learning (ML) predictions for the oxidative coupling of methane (OCM) are evaluated under experiment situation. The ML protocol has sparked new motivation for trial runs of 96 kinds of metal‐supported catalysts based not only on scientists’ experiences but also on data presented in earlier reports of the literatures and obtained during verification. Our protocol discovers unreported catalyst combinations for OCM reactions from data expanding upon three decades of research, where various numbers of catalysts are predicted and confirmed to perform better than blank data. Nevertheless, the target on C2 yield for the OCM reaction remains as a challenging subject: i. e. higher than 30 %. Revisiting data reported in the literature reveals that different reactor systems and/or specific methods are used in the original data for achieving higher than 30 % C2 yield. Such specialties are attributed to the inadequacy of a literature‐data‐driven ML approach at the present situation. Furthermore, classification of experimental data has indicated target C2 yield values and trends toward CH4 and O2 conversion and product selectivity in high dimensions can improve future ML prediction. These findings are greatly beneficial for the next stage of development to find a global descriptor to improve ML prediction accuracy beyond interpolation filling.
Computational Design of Copper doped Indium for electrocatalytic Reduction of CO2 to Formic Acid
Authors: Sun Wenli , Liang Yu , Wang Changhong , Feng Xia , Zhou Wei , Zhang Bin 
Published: August 2020

AbstractElectrochemical reduction of CO2 to formic acid is crucial to achieve a low carbon cycle and mitigate the energy crisis. Density functional calculation is deemed to be an important method for designing highly efficient catalysts for CO2 electrochemical reduction (CO2ER). Cu−In alloy is mostly reported to show an increasing selectivity of reducing CO2 to CO, however the performance of CO2ER over In with tiny amount of Cu doping and the influence of trace Cu to the reaction are rarely researched. Here, The CO2ER mechanism over In and trace Cu doped In (denoted as Cu−In) catalysts are theoretically investigated. Additionally, the relative reduction pathways and Gibbs free energies of the key intermediates (*COOH and HCOO*) are calculated, which show that Cu−In can produce formic acid more efficiently since Cu−In surface prefers to adsorb HCOO* to form formic acid and decrease the production of CO. Additionally, the theoretical calculation is verified by experimental results. The designed Cu−In catalyst (containing 1.55 wt % Cu) shows a high Faraday efficiency of 70 % for formate in CO2 saturated 0.5 M NaHCO3 electrolyte, which is much better than pure In (56 %).
Co‐Polymeric Nanosponges from Cellulose Biomass as Heterogeneous Catalysts for amine‐catalyzed Organic Reactions
Authors: Riva Laura , Punta Carlo , Sacchetti Alessandro 
Published: August 2020

AbstractHeterogeneous catalysts prepared from biomass waste sources are attracting increasing interest. The reasons rely on the possibility of combining the virtuous approach of circular economy with the consolidated advantages of heterogeneous catalysis, namely the recycling of the system and the possibility to drive selectivity towards desired products. Herein we report a highly porous cellulose‐based nanosponge (CNS) and its use as a recoverable catalyst for Henry and Knoevenagel reactions, two classical amino‐catalyzed transformations. The material is obtained by cross‐linking between TEMPO‐oxidized cellulose nanofibers (TOCNF) and branched polyethyleneimine 25 kDa (bPEI) in the presence of citric acid. CNS have been developed as sorbent materials for water remediation but their use as heterogeneous catalysts was never investigated. The fully characterized micro‐ and nano‐porous system guarantees a complete penetration of CNS, allowing reagents to diffuse within. Indeed, by modulating reaction conditions (catalyst loading, temperature, solvent, microwave versus conventional heating, relative ratio of reagents) it was possible to drive selectivity towards the desired products, while maintaining high efficiency in terms of conversion. The catalyst could be re‐used several times without losing in catalytic efficiency. In most cases the products’ distribution is quite different from homogeneous conditions, this much more emphasizing the importance of this heterogeneous solution.
Deal;Photoredox Catalysis for the Cycloaddition Reactions
Authors: Zhang Tong , Zhang Yu , Das Shoubhik 
Published: August 2020

AbstractCycloaddition reaction is a powerful tool for the synthesis of cyclic structures in a green way. High‐energy ultraviolet (UV) light was strictly required for the traditional photochemical processes. However, in the past ten years, discovery of photoredox catalysis for the cycloaddition reactions have attracted significant attention. Based on these elegant works, this review will summarize recent progresses in the visible‐light‐induced [2+2] and [4+2] cycloaddition reactions.
Control of Shear Dispersion by the Permeable Porous Wall of a Capillary Tube
Authors: Kou Zuhao , Dejam Morteza 
Published: August 2020

AbstractThe transfer of a neutral nonreacting mass species was studied in a capillary tube with a permeable porous wall, under the effect of combined pressure‐driven and electro‐osmotic flows or simply combined flows (CF). An exact expression for the shear dispersion coefficient in a tube under the influence of CF is derived, which remains constant when λD, inversely propotional to the permeability of the porous medium, is smaller than 1 or larger than 100 for a constant Péclet number. In addition, the equivalent one‐dimensional governing equations for the concentrations of species in the tube and the permeable porous medium under the influence of CF are obtained. The proposed model is compared and verified with several existing models in the literature.
Seeding and nitrogen fertilization effects on the yield and quality of brachytic dwarf brown midrib forage sorghum hybrids
Authors: Elango Dinakaran , Chopra Surinder , Roth Gregory W. 
Published: August 2020

AbstractBrown midrib (BMR) forage sorghum [Sorghum bicolor (L.) Moench] silage is an alternative to corn (Zea mays L.) silage for areas with limited soil moisture. Traditional forage varieties are tall and prone to lodging, with low forage quality. Brachtyic dwarf BMR lines are shorter and lodging‐resistant and have higher forage quality. Newer earlier‐maturing hybrids have expanded the potential adaptation of forage sorghums to northern latitudes. A 2‐yr study was conducted during the 2014 and 2015 growing seasons with brachytic dwarf BMR forage hybrids to determine the effects of different seeding and N fertilization rates on forage dry matter yield and quality. The experimental design was a split‐split‐plot with four replications. The main plots were two hybrids (‘AF7202’ and ‘AF7401’), the subplots were two seeding rates (80,000 and 120,000 seeds acre−1), and the sub‐subplots were two N rates (110 and 150 lb acre−1). Significant differences were observed between hybrids for all parameters except neutral detergent fiber digestibility (NDFD) in 2015. The early hybrid, AF7202, had higher yields and higher starch content and net energy for lactation levels than dwarf hybrid AF7401 and was more responsive to higher N. AF7401 had higher crude protein content and NDFD. Crude protein increased as N level increased for both hybrids but other forage quality traits were unaffected. Neither variety responded to an increased seeding rate. The earlier brachytic dwarf forage sorghums, such as AF7202, managed with recommended seeding rates and possibly higher N rates, have potential for high forage yield and quality in central Pennsylvania.
Coordination Chemistry and Methylation of Mixed‐Substituted Tetraphosphetanes (RP−PtBu)2 (R=Ph, Py)
Authors: Schoemaker Robin , Kossatz Philipp , Schwedtmann Kai , Hennersdorf Felix , Weigand Jan J. 
Published: August 2020

AbstractInvited for the cover of this issue is the group of Jan J. Weigand at Technische Universität Dresden. The image depicts a puzzle illustrating the coinage metal cations and the methyl group, from which the three‐dimensional structure of a multiply methylated tetraphosphetane arises. Read the full text of the article at 10.1002/chem.202001360.
CO2‐Enabled Cyanohydrin Synthesis and Facile Iterative Homologation Reactions**
Authors: Juhl Martin , Petersen Allan R. , Lee Ji‐Woong 
Published: August 2020

AbstractThermodynamic and kinetic control of a chemical process is the key to access desired products and states. Changes are made when a desired product is not accessible; one may manipulate the reaction with additional reagents, catalysts and/or protecting groups. Here we report the use of carbon dioxide to accelerate cyanohydrin synthesis under neutral conditions with an insoluble cyanide source (KCN) without generating toxic HCN. Under inert atmosphere, the reaction is essentially not operative due to the unfavored equilibrium. The utility of CO2‐mediated selective cyanohydrin synthesis was further showcased by broadening Kiliani–Fischer synthesis under neutral conditions. This protocol offers an easy access to a variety of polyols, cyanohydrins, linear alkylnitriles, by simply starting from alkyl‐ and arylaldehydes, KCN and an atmospheric pressure of CO2.
The Cyclohexa‐2,5‐dienyl Group as a Placeholder for Hydrogen: Organocatalytic Michael Addition of an Acetaldehyde Surrogate
Authors: Chen Weiqiang , Fang Huaquan , Xie Kaixue , Oestreich Martin 
Published: August 2020

AbstractAn aldehyde with a cyclohexa‐2,5‐dienyl group in the α‐position is introduced as a storable surrogate of highly reactive acetaldehyde. The cyclohexa‐2,5‐dienyl unit is compatible with an enantioselective Michael addition to nitroalkenes promoted by a Hayashi–Jørgensen catalyst and can be removed by a boron Lewis acid mediated C−C bond cleavage. The robust two‐step sequence does not require a large excess of the aldehyde component that is typically needed when directly using acetaldehyde.
Jubiläumspumpe
Authors: Streubel Thomas 
Published: August 2020

AbstractDer Weltmarktführer und Hersteller von Verdrängerpumpen Netzsch Pumpen & Systeme lieferte im Mai 2020 aus seiner Niederlassung in Exton, USA, die 1.000.000ste Pumpe aus. Entwickelt wurde die Pumpe, eine Nemo Exzenterschneckenpumpe für Dickstoffschlamm im