bluuebunny/crossref_metadata_2025_split huggingface dataset:
Strain‐Induced Structure Evolution of Multimetallic Nanoplates
Authors: Mahmood Azhar , He Dequan , Talib Shamraiz Hussain , He Ying , Song Zhongqian , Zhenbang Liu , Han Dongxue , Niu Li 
Published: July 2022

AbstractThe surface structure and lattice strain necessary to optimize oxygen reduction reaction (ORR) in a cost‐effective electrocatalyst still requires systematic exploration. Here, by means of oxidative etching of surface confinement stacking faults, a comparative study of the influence of defects on the growth and lattice strain of PtAgPb core‐shell nanoplates for ORR is conducted. Stacking faults are key to forming the core–shell structure and induce tensile and compressive strains to improve catalytic performance of nanoplates. In particular, the compressive strain arising from the optimal composition of nanoplates enhances the ORR activity. The findings show how compressive strain in core–shell nanoplates shift the electronic band structure of platinum (Pt) and weakens chemisorption of oxygenated species. As a result, the obtained PtAgPb‐IV/C nanoplates display superior specific and mass activities (5.06 mA cm−2 and 2.24 A mgPt−1) for ORR that are ≈18 and ≈13 times higher than that of commercial Pt/C, placing it among the best reported Pt based ORR electrocatalysts. Furthermore, the PtAgPb‐IV/C catalyst exhibits substantially improved durability relative to commercial Pt/C catalysts. This work represents a major step toward the deterministic synthesis of Pt‐based multimetallic nanocrystals with specific structure and surface strain for efficient ORR performance.
Enriched‐Bromine Surface State for Stable Sky‐Blue Spectrum Perovskite QLEDs With an EQE of 14.6%
Authors: Zhu Hanwen , Tong Guoqing , Li Junchun , Xu Enze , Tao Xuyong , Sheng Yuanyuan , Tang Jianxin , Jiang Yang 
Published: July 2022

AbstractHalogen vacancies are of great concern in blue‐emitting perovskite quantum‐dot light‐emitting diodes because they affect their efficiency and spectral shift. Here, an enriched‐bromine surface state is realized using a facile strategy that employs a PbBr2 stock solution for anion exchange based on Cd‐doped perovskite quantum dots. It is found that the doped Cd ions are expected to reduce the formation energy of halogen vacancies filled by the external bromine ions, and the excess free bromine ions in solution are enriched in the surface by anchoring with halogen vacancies as sites, accompanied with the shedding of surface long‐chain ligands during the anion exchange process, resulting in a Br‐rich and “neat” surface. Moreover, the surface state exhibits good passivation of the surface defects of the controlled perovskite QDs and simultaneously increases the exciton binding energy, leading to excellent optical properties and stability. Finally, the sky‐blue emitting perovskite quantum‐dot light‐emitting diodes (QLEDs) (490 nm) are conducted with a record external quantum efficiency of 14.6% and current efficiency of 19.9 cd A−1. Meanwhile, the electroluminescence spectra exhibit great stability with negligible shifts under a constant operating voltage from 3 to 7 V. This strategy paves the way for improving the efficiency and stability of perovskite QLEDs.
Chemical Vapor Deposition of High‐Optical‐Quality Large‐Area Monolayer Janus Transition Metal Dichalcogenides
Authors: Gan Ziyang , Paradisanos Ioannis , Estrada‐Real Ana , Picker Julian , Najafidehaghani Emad , Davies Francis , Neumann Christof , Robert Cedric , Wiecha Peter , Watanabe Kenji , Taniguchi Takashi , Marie Xavier , Biskupek Johannes , Mundszinger Manuel , Leiter Robert , Kaiser Ute , Krasheninnikov Arkady V. , Urbaszek Bernhard , George Antony , Turchanin Andrey 
Published: July 2022

AbstractOne‐pot chemical vapor deposition (CVD) growth of large‐area Janus SeMoS monolayers is reported, with the asymmetric top (Se) and bottom (S) chalcogen atomic planes with respect to the central transition metal (Mo) atoms. The formation of these 2D semiconductor monolayers takes place upon the thermodynamic‐equilibrium‐driven exchange of the bottom Se atoms of the initially grown MoSe2 single crystals on gold foils with S atoms. The growth process is characterized by complementary experimental techniques including Raman and X‐ray photoelectron spectroscopy, transmission electron microscopy, and the growth mechanisms are rationalized by first principle calculations. The remarkably high optical quality of the synthesized Janus monolayers is demonstrated by optical and magneto‐optical measurements which reveal the strong exciton–phonon coupling and enable an exciton g‐factor of −3.3.
Eddy covariance quantification of corn water use and yield responses to irrigations on farm‐scale fields
Authors: Anapalli Saseendran S. , Pinnamaneni Srinivasa R. , Reddy Krishna N. , Singh Gurbir 
Published: July 2022

AbstractFurrow irrigations dominate row‐crop irrigation scenarios in many regions worldwide. In this study, corn (Zea mays L.) yield and evapotranspiration (ET) in an all‐furrow irrigation (FI) were compared against irrigations applied through alternate furrows irrigation (SFI, skip‐furrow irrigation) and rainfed (RF) systems on farm‐scale fields in 2017 and 2019 {corn phases of a soybean [Glycine max (L.) Merr.]–corn rotation} in clay soil in the Lower Mississippi Delta region, United States. Evapotranspiration was monitored using the eddy covariance (EC) method. The average corn yield in the SFI was significantly (12.1 Mg ha−1) higher (4.9%) than in the FI (11.7 Mg ha−1). Corn yield in RF (10.2 Mg ha−1) was significantly lower (10.7%) than in the FI. However, the leaf area index (LAI) in SFI was lower than in FI. Seasonal average ET was 556, 573, and 540 mm in FI, SFI, and RF, respectively. The average water use efficiencies (WUEs) were 0.021, 0.021, and 0.019 Mg ha−1 mm−1, respectively (10.5 % lower in RF than FI and SFI). This investigation revealed that adapting the SFI irrigation regime in the corn cropping system could produce grain yields equal to or higher than corn grown under the conventional FI, saving ∼40% of irrigation water. The farm‐scale studies conducted in this investigation gave better confidence to recommend SFI to replace conventional FI systems in the region for water conservation in corn cropping systems. Further investigations may be needed to evaluate the viability of SFI in other contrasting soils and climates and recommend the system for adoption by the farming community.
Optimizing quinoa growth cycle duration in northeast England by varying the sowing date
Authors: Domingos Israel , Bilsborrow Paul 
Published: July 2022

AbstractQuinoa (Chenopodium quinoa Willd.) is attracting interest as a key contributor to global food and nutritional security. This study evaluated the effects of and interactions between sowing date (mid‐April vs. early May) and variety (‘Atlas’ and ‘Jessie’) on the performance of quinoa in northeast England over three seasons (2016–2018). Grain yield was about 1 Mg ha−1 on average across all treatments, associated with poor crop establishment (56.6%) and a prolonged crop growth cycle (165 d). The highest grain yield of 1.70 Mg ha−1 was achieved from the late‐maturing variety Atlas in 2017, which was also supported by the highest harvest index and yield components. Grain yield, protein content, and Zn concentration were all significantly higher for the late sowing, whereas total antioxidant concentration was significantly higher in response to the early sowing date. Grain Zn (43.8 mg kg−1), Fe (123.1 mg kg−1), and protein (13.4%) concentrations were higher on average than those reported for major cereals with particularly high protein (14.8%) and Zn (63.8 mg kg−1) concentrations achieved in 2017. Despite the relatively low yield, varietal differences in crop yield and development can be targeted for future crop improvements to suit the cool temperate climate of northeast England.
Domestic clustered networks and internationalization of agrifood SMEs
Authors: Serrano Raul , Dejo‐Oricain Natalia , Ferrer Juan , Pinilla Vicente , Abella‐Garcés Silvia , Maza Maria Teresa 
Published: July 2022

AbstractThis paper examines how participating in domestic clustered networks in the agri‐food industry affects the export status and export intensity of small and medium‐sized enterprises (SMEs). The Uppsala internationalization process model has been revisited in light of the knowledge that these networks can contribute to promoting the presence of SMEs abroad. The study uses a sample of companies in the Spanish wine industry and characterizes 76 domestic clustered business networks (Protected Designations of Origin). The value and originality of the paper reside in its contribution in terms of measuring the degree of internationalization of domestic clustered networks to which SMEs belong. It also assesses the effect of these networks on the internationalization process of the agri‐food industry, considering that domestic clustered networks with a strong international commitment generate greater internationalization opportunities. [EconLit Citations: F14, M21, Q13, Q17].
The experience of one pediatric geneticist with telemedicine‐based clinical diagnosis
Authors: Campbell Ian M. , Crowley T. Blaine , Keena Beth , Donoghue Sarah , McManus Morgan L. , Zackai Elaine H. 
Published: July 2022

AbstractTelemedicine has long been considered as an attractive alternative methodology in clinical genetics to improve patient access and convenience. Given the importance of the dysmorphology physical examination and anthropometric measurement in clinical genetics, many have wondered if lost information would hamper diagnosis. We previously addressed this question by analyzing thousands of diagnostic encounters in a single practice involving multiple practitioners and found no evidence for a difference in new molecular diagnosis rates. However, our previous study design resulted in variability in providers between in‐person and telemedicine evaluation groups. To address this in our present study, we expanded our analysis to 1104 new patient evaluations seen by one highly experienced clinical geneticist across two 10‐month periods before and after the start of the COVID‐19 pandemic. Comparing patients seen in‐person to those seen by telemedicine, we found significant differences in race and ethnicity, preferred language, and home zip code median income. The clinical geneticist intended to send more genetic testing for those patients seen by telemedicine, but due to issues with test authorization and sample collection, there was no difference in ultimate completion rate between groups. We found no significant difference in new molecular diagnosis rate. Overall, we find telemedicine to be an acceptable alternative to in‐person evaluation for routine pediatric clinical genetics care.
Catalytic Asymmetric α‐Alkylsulfenylation with a Disulfide Reagent
Authors: Shi Mingying , Zhang Qi , Gao Jiali , Mi Xueling , Luo Sanzhong 
Published: July 2022

AbstractThe use of alkylthio electrophiles in synthesis has remained elusive because of the lack of a suitable reagent that is practical and of excellent enantioselectivity and appropriate reactivity. In this work we introduce a novel alkylthio reagent based on the 2‐mercapto‐5‐methyl‐1,3,4‐thiadiazole (MMTD) fragment for direct alkylsulfenylation of ketones and aldehydes. It can be readily prepared by the oxidative coupling between thiadiazole and other alkylthio reagents and be combined with chiral primary aminocatalysis. This protocol provides facile access to diverse α‐alkylthio quaternary carbon centers with good stereoselectivities.
Dicyanoargentate(I)‐based complexes induced in vivo tumor inhibition by activating apoptosis‐related pathways
Authors: Aydın Ali , Korkmaz Nesrin , Kısa Dursun , Türkmenoğlu Burçin , Karadağ Ahmet 
Published: July 2022

Colorectal adenocarcinoma, which often occurs as a result of a typical chromosomal instability and mismatch repair deficiencies resulting in resistance to apoptosis, is a significant burden on society. Previously, we demonstrated strong apoptosis triggers Ag(I) complexes in vitro, including [Ni (hydeten)2Ag(CN)2] [Ag (CN2].H2O (C1), [Ni (bishydeten)2] [Ag (CN)2]2.H2O (C2), and [Ni(N‐bishydeten)Ag3(CN)5] (C3), which specifically induce the apoptotic mechanism of cancer cells and selectively is non‐cytotoxic within normal cells. Herein, we introduce in vivo the ability of Ag(I) complexes to activate apoptosis and interact with cell cycle and cell fate‐related proteins. To assess antitumor efficacy, we evaluated tumor volume, survival rate, and protein status related to cell cycle, apoptosis, and oxidative stress (by immunohistochemistry, genetic expression, and ELISA assays). In addition, in this study, using molecular docking study, the interactions of metal complexes on many proteins were examined, and the findings related to their theoretical anticancer activities were obtained and compared. The in vivo evaluation of Ag(I) complexes (10 mg/kg) against HT29 xenograft tumor model in the CD1 nude and BALB/c mice revealed a remarkable decrease in the tumor volume and increase survival rate. The weight‐loss situation and histopathological indicators of Ag(I) complexes‐treated mice approved that the Ag(I) complexes have a considerable healing effect on solid tumors with negligible side‐effect on the tissue. This promising information strongly expresses that Ag(I) complexes may fulfill the task of an antitumor agent and be a potential candidate for a chemotherapeutic approach against colorectal adenocarcinoma.
Polyanilines from spent battery powder and activated carbon: Electrodes for asymmetric supercapacitor cell
Authors: Ega Sai Prasad , Karri Sangam Naidu , Srinivasan Palaniappan 
Published: July 2022

AbstractThis work aims to use the electro‐active materials for energy storage application from the waste raw material source, readily and indigenously available materials. Nowadays, the use of waste sources to prepare electro‐active materials for energy storage applications is trending due to their low‐cost, high availability, reduced environmental problems, and so forth. In this direction, Polyaniline (PANI) is prepared using a MnO2 oxidant collected from waste Zn‐C cells. PANI displayed a compact and interconnected granular morphology with a surface area (39 m2 g−1), pore volume (0.19 cm3 g−1), and pore diameter (2.2 nm). Activated carbon (AC) has a surface area (860 m2 g−1), pore volume (199 cm3 g−1), and pore diameter (1.2 nm) is purchased locally. FT‐IR, XRD, and EDAX spectra support the formation of polyaniline salt with a small amount of Mn and Zn. The asymmetric cell is constructed using a PANI as a positive electrode and carbon as negative electrode material. The cell (PANI//AC) shows a high specific capacitance of 157 F g−1 at a current density of 5 mA cm−2. The cell offers a cycle life stability of 5000 cycles with a coulombic efficiency of 93% at a current density of 10 mA cm−2.
Bridging information and communication technology and older adults by social network: An action research in Sichuan, China
Authors: Zhang Yuhao , Zheng Guangchun , Yan Hui 
Published: July 2022

AbstractThe extant literature demonstrates that the age‐related digital divide prevents older adults from enhancing their quality of life. To bridge this gap and promote active aging, this study explores the interplay between social networks and older adults' use of information and communication technology (ICT). Using an action‐oriented field research approach, we offered technical help (29 help sessions) to older adult participants recruited from western China. Then, we conducted content analysis to examine the obtained video, audio, and text data. Our results show that, first, different types of social networks significantly influence older adults' ICT use in terms of digital skills, engagement, and attitudes; however, these effects vary from person to person. In particular, our results highlight the crucial role of a stable and long‐term supportive social network in learning and mastering ICT for older residents. Second, technical help facilitates the building and reinforcing of such a social network for the participants. Our study has strong implications in that policymakers can foster the digital inclusion of older people through supportive social networks.
Semi‐rational protein engineering of a novel ene‐reductase from Galdieria sulphuraria for asymmetric reduction of (R)‐carvone and ketoisophorone
Authors: Wu Shijin , Wang Bijiao , Yan Hongde 
Published: July 2022

AbstractAsymmetric reduction of (R)‐carvone and ketoisophorone by an engineered ene‐reductase from Galdieria sulphuraria (GsOYE) combined with glucose dehydrogenase for NADPH regeneration were studied. A semi‐rational protein engineering was used to enhance the activity and selectivity of GsOYE. Upon the sequence alignment and molecular docking results, two amino acid residues at positions 66 and 270 were selected as saturation mutation sites. Finally, a single substitution variant of GsOYE‐N270A with complete conversion (100%) and diastereoselectivity (dep>99%) for reduction of (R)‐carvone and a double substitution variant GsOYE‐Y66P/N270H with improved stereoselectivity for reduction of ketoisophorone were obtained.
Prevalence of individual brain and eye defects potentially related to Zika virus in pregnancy in 22 U.S. states and territories, January 2016 to June 2017
Authors: Delaney Augustina , Olson Samantha M. , Roth Nicole M. , Cragan Janet D. , Godfred‐Cato Shana , Smoots Ashley N. , Fornoff Jane , Nestoridi Eirini , Eckert Valorie , Forkner Allison , Stolz Amanda , Crawford Katherine , Cho Sook Ja , Elmore Amanda , Langlois Peter , Nance Amy , Denson Lindsay , Forestieri Nina , Leedom Vinita O. , Tran Tri , Valencia‐Prado Miguel , Romitti Paul , Barton Jerusha E. , St. John Kristen , Mann Sylvia , Orantes Lucia , DeWilde Leah , Tong Van T. , Gilboa Suzanne M. , Moore Cynthia A. , Honein Margaret A. 
Published: July 2022

AbstractDuring the Centers for Disease Control and Prevention's Zika Virus Response, birth defects surveillance programs adapted to monitor birth defects potentially related to Zika virus (ZIKV) infection during pregnancy. Pregnancy outcomes occurring during January 2016 to June 2017 in 22 U.S. states and territories were used to estimate the prevalence of those brain and eye defects potentially related to ZIKV. Jurisdictions were divided into three groups: areas with widespread ZIKV transmission, areas with limited local ZIKV transmission, and areas without local ZIKV transmission. Prevalence estimates for selected brain and eye defects and microcephaly per 10,000 live births were estimated. Prevalence ratios (PRs) and 95% confidence intervals (CIs) were estimated using Poisson regression for areas with widespread and limited ZIKV transmission compared with areas without local ZIKV transmission. Defects with significantly higher prevalence in areas of widespread transmission were pooled, and PRs were calculated by quarter, comparing subsequent quarters to the first quarter (January–March 2016). Nine defects had significantly higher prevalence in areas of widespread transmission. The highest PRs were seen in intracranial calcifications (PR = 12.6, 95% CI [7.4, 21.3]), chorioretinal abnormalities (12.5 [7.1, 22.3]), brainstem abnormalities (9.3 [4.7, 18.4]), and cerebral/cortical atrophy (6.7 [4.2, 10.8]). The PR of the nine pooled defects was significantly higher in three quarters in areas with widespread transmission. The largest difference in prevalence was observed for defects consistently reported in infants with congenital ZIKV infection. Birth defects surveillance programs could consider monitoring a subset of birth defects potentially related to ZIKV in pregnancy.
Vom Molekül bis zum globalen Kreislauf
Authors: Rübberdt Kathrin 
Published: July 2022

AbstractSafttüten, Wärmedämm‐Verbundsysteme, Batteriezellen gehören zu den zahllosen Produkten, die aus wertvollen Rohstoffen hergestellt werden und für die heute nur begrenzte oder gar keine stofflichen Recycling‐Verfahren existieren. Und sie zeigen exemplarisch die Vielfalt an Fragestellungen zur Umsetzung einer Circular Economy – einer echten Kreislaufwirtschaft.
Komplexes Abwasser behandeln
Authors: Quaiser Jutta 
Published: July 2022

AbstractBereits bei der Produktion von Pharmazeutika und Medikamenten sind die dabei anfallenden Abwässer mit Resten von Arzneimittelwirkstoffen belastet. Envirochemie bietet neben einer sorgfältigen Analytik eine Reihe von Verfahren an, um bedenkliche Inhaltsstoffe zuverlässig aus dem industriellen Abwasser zu entfernen.
Photocatalytic Aerobic Oxysulfonylation of Alkynes to Access β‐Keto Sulfones Catalyzed by OVs‐N‐Nb2O5
Authors: Song Tao , Zhang Yinpan , Wang Chun , Li Yafei , Yang Yong 
Published: July 2022

Comprehensive SummaryHerein, we report a novel heterogeneous photocatalyst for radical‐mediated oxidative oxysulfonylation of alkynes to β‐keto sulfones under environmentally benign conditions. The oxygen vacancy‐rich semiconductor Nb2O5 (labeled as OVs‐N‐Nb2O5) could efficiently catalyze a wide range of alkynes, especially for those bearing electron‐deficient substituents or internal alkynes, to their corresponding β‐keto sulfones in good to high yields with good tolerance of diverse functional groups under visible‐light illumination. The late‐stage modification of steroidal compounds and synthesis of bioactive molecules were also achieved via this procedure, highlighting its potential for practical applications. Meanwhile, the photocatalyst OVs‐N‐Nb2O5 showed outstanding catalytic stability for successive recycles without appreciable loss in activity and selectivity. The critical role of oxygen vacancies on improving reaction activity and selectivity was clearly disclosed via control experiments and theoretical calculation.
Multi‐objective task scheduling in cloud computing
Authors: Malti Arslan Nedhir , Hakem Mourad , Benmammar Badr 
Published: July 2022

SummaryCloud computing services are used to fulfill user requests, often expressed in the form of tasks and their execution in such environments requires efficient scheduling strategies that take into account both algorithmic and architectural characteristics. Unfortunately, this problem is known to be NP‐hard in its general form. Despite the fact that several studies have been published in the literature, there are still interesting and relevant questions to be addressed. Indeed, most of the previous studies focus on a single objective and in the case where they deal with a set of objectives, they use a simple compromise function and do not consider how each of the parameters might influence the others. To this end, we propose an efficient task scheduling algorithm which is based on the pollination behavior of flowers and makes use of both Pareto optimality principle and TOPSIS technique to improve the quality of the obtained solutions. Both single and multiobjective optimization variants are investigated. In the latter case, three optimization criteria are considered, namely, minimizing the time makespan or schedule length, the execution cost, and maximizing the overall reliability of the task mapping. Different test‐bed scenarios and QoS metrics were considered and the obtained results corroborate the merits of the proposed algorithm.