bluuebunny/crossref_metadata_2025_split huggingface dataset:
Photophysics in Zero‐Dimensional Potassium‐Doped Cesium Copper Chloride Cs3Cu2Cl5 Nanosheets and Its Application for High‐Performance Flexible X‐Ray Detection
Authors: Han Lili , Sun Beibei , Guo Chao , Peng Guoqiang , Chen Huanyu , Yang Zhou , Li Nan , Ci Zhipeng , Jin Zhiwen 
Published: January 2022

AbstractZero‐dimensional Cs3Cu2Cl5 exhibits intriguing optical properties, which can meet the basic requirements of ideal scintillator application. Here, green emitter Cs3Cu2Cl5 nanosheets are successfully synthesized, and by doping with 2% potassium (K+), their photoluminescence quantum yield (70.23% to 81.39%), radioluminescence intensity, and stability are improved. Further experimental and theoretical studies point out that: (1) K+ brings the neighboring [Cu2Cl5]3− dimers groups closer, leading to lattice shrinkage and lower lattice constants; (2) such compact crystal structure results in stronger exciton–photon coupling and reduced phonon–electron coupling strength, which is beneficial to form self‐trapped excitons and enhanced luminescence; (3) lower lattice constants also induce decreased bandgap (2.58 to 2.51 eV) and increased Stokes shift (217 to 223 nm), for less self‐absorption and higher quantum efficiency. Finally, area‐controllable uniform flexible Cs3Cu2Cl5:2%K+–polystyrene film is successfully achieved with excellent X‐ray sensibility. Such flexible film shows low cost (2.8223 $/g), broadband response (20–160 keV), and high spatial resolution (5 lp mm−1) that is comparable to commercial CsI:Tl wafer. Moreover, it fits well with nonplanar surfaces for high‐quality medical and industrial flexible images applications. It is believed that this work can provide a viable tactic to enhance X‐ray detection in metal halide scintillators.
Redox‐Mediated Two‐Electron Oxygen Reduction Reaction with Ultrafast Kinetics for Zn–Air Flow Battery
Authors: Huang Shiqiang , Zhang Hang , Zhuang Jiahao , Zhou Mingyue , Gao Mengqi , Zhang Feifei , Wang Qing 
Published: January 2022

AbstractRechargeable Zn–air batteries (ZABs) as high‐energy density and cost‐effective power sources for next generation energy storage have attracted considerable attention. However, the sluggish oxygen electrochemistry leads to high polarization of the air electrode during charge/discharge and consequently a low round‐trip energy efficiency of the cell. Here it is shown that the two‐electron oxygen redox chemistry enabled by a redox mediator, anthraquinone‐2,7‐disulfonic acid disodium salt (AQDS), can effectively boost the performance of ZABs. The kinetics and underlying mechanism of the AQDS‐mediated oxygen reduction reaction at different pH are scrutinized both computationally and experimentally to delineate the reaction pathways and rate‐limiting step. An ultrafast catalytic rate constant of 2.53 × 106 s–1 is achieved at a pH of 13.13 and based on a flow cell configuration, the AQDS‐mediated Zn–air flow battery demonstrates considerably enhanced energy efficiency of 85% at 10 mA cm−2.
Response of chickpea to varying moisture stress conditions in Ethiopia
Authors: Korbu Lijalem , Fikre Asnake , Tesfaye Kassahun , Funga Assefa , Bekele Dagnachew , Ojiewo Chris O. 
Published: January 2022

AbstractChickpea (Cicer arietinum L.) is an economically important crop grown by nearly one million Ethiopian smallholder farmers. The crop is often considered as “stress‐loving,” but moisture stress at flowering and grain filling stages could be detrimental. Yield of chickpea is commonly affected by terminal drought stress in the rainfed production system in Ethiopia. The lack of proper field‐screening methods has hindered the development of drought‐tolerant varieties. This study demonstrates a simple and practical field‐level screening method for drought tolerance traits in the conventional breeding programs. A field experiment was conducted using 28 elite chickpea cultivars during the 2018–2019 main cropping season to study their response to moisture regimes of varying drought intensities. We used yield and its components as proxy parameters of screening to select tolerant cultivars. The study revealed significant variation among the cultivars in their response to different moisture regimes. The kabuli cultivars were found more sensitive compared with the desi types. Yield penalty exceeded 70% under severe drought. Conversely, cultivars tested under mild and severe stress drought showed average yield gain of 22 and 48%, respectively, relative to the irrigated treatment. Overall, over 50% yield gain can be obtained in drought‐affected rainfed production areas in Ethiopia using supplemental irrigation during pod setting to grain filling stages. For post‐rainy‐season crops relying on residual soil moisture, such as chickpea, breeding for shorter duration and resilient cultivars are reliable management approaches to minimize drought‐caused yield losses.
Manure applications combined with chemical fertilizer improves soil functionality, microbial biomass and rice production in a paddy field
Authors: Iqbal Anas , Liang He , McBride Steven G. , Yuan Pengli , Ali Izhar , Zaman Maid , Zeeshan Muhammad , Khan Rayyan , Akhtar Kashif , Wei Shanqing , Guo Zixiong , Jiang Ligeng 
Published: January 2022

AbstractThe current farming system is highly reliant on synthetic fertilizers, which adversely affect soil quality, the environment, and crop production. Improving crop productivity on a sustainable basis is a challenging issue in the current agricultural system. To address this issue, we assumed that the combined use of manure and chemical fertilizers (CF) could improve rice (Oryza sativaL.) grain yield and soil properties without the expense of the environment. Therefore, a 2‐yr field experiment was conducted to explore optimal fertilizer management strategies using a combination of CF and organic fertilizer in the form of cattle manure (CM) or poultry manure (PM). Manure was added at two levels and soil microbial biomass production, enzyme activities, nutrient content, as well as grain yield of rice were measured. The study consisted of six treatments: no N fertilizer control, 100% chemical fertilizer (Pos‐Con), 60% cattle manure + 40% chemical fertilizer (High‐CM), 30% cattle manure + 70% chemical fertilizer, 60% poultry manure + 40% chemical fertilizer, and 30% poultry manure + 70% chemical fertilizer. Results showed that the addition of manure significantly increased soil enzymatic activities such as soil invertase, acid phosphatase (POH), urease, catalase (CAT), β‐glucosidase, and cellulase as compared to sole CF application. Similarly, the combined fertilizers application led to significant increases in soil microbial biomass C (MBC), microbial biomass N (MBN), soil pH, soil organic C (SOC), total N, available N (AN), available P (AP), and rice yield. Average increases in soil MBC, MBN, SOC AN, and AP in the 0‐to‐20‐cm soil depth were 62.2, 54.5, 29.2, 17.4, and 19.8%, respectively, across the years in the High‐CM treatment compared with the Pos‐Con. In addition, the linear regression analysis showed that soil enzymatic activities were highly positively correlated with soil MBC and MBN. The principal component analysis and linear regression analyses showed that the increased soil enzyme activities and microbial biomass production played a key role in the higher grain yield of rice. Overall, the results of this study demonstrate that the combined use of synthetic fertilizer and organic fertilizer in paddy fields could be beneficial for the farmers in southern China by improving soil functionality and yield of rice on a sustainable basis.
From Blue to Green Photoluminescence: Design, Synthesis, and DFT Calculations of Heterocyclic Compounds Containing Chromenothienopyrimidine Moiety
Authors: Tolba Mahmoud S. , Al‐Hossainy Ahmed F. , Kamal Eldean Adel M. , Younis Osama 
Published: January 2022

AbstractIncorporating coumarin nuclei into other heterocyclic scaffolds such as thienopyrimidine can significantly increase the photophysical and biological efficiency. Accordingly, we describe in this manuscript the synthesis of new heterocyclic derivatives containing combined coumarin and pyrimidine nuclei to maximize the application benefit of the target compounds. All of the synthesized derivatives were thoroughly characterized using spectral analyses such as FT‐IR, NMR, and mass spectroscopy. The photophysical properties of four compounds in solution were investigated, where the substitutions had a significant effect even when the molecule conjugation was not included. Although having similar luminescent cores, two analog compounds showed different emission colors, blue and green. Uncommonly, one derivative showed a blue shift after aggregation. DFT simulations showed that adding a terminal group can significantly alter the electronic structure or molecular packing which affected directly the luminescence behavior.
Complete Hyperentangled Bell States Analysis For Polarization‐Spatial‐Time‐Bin Degrees of Freedom with Unity Fidelity
Authors: Zhou Xin‐Jie , Liu Wen‐Qiang , Zheng Yan‐Bei , Wei Hai‐Rui , Du Fang‐Fang 
Published: January 2022

AbstractHyperentangled states can outperform their classical counterparts on solving certain tasks. Here, a simplified scheme for completely distinguishing two‐photon hyperentangled Bell states in polarization, spatial, and time‐bin degrees of freedom (DOFs) is presented. Unity fidelity can be achieved in principle without strong couple limitation between photon and quantum dot (QD), and the incomplete and imperfect QD‐cavity interactions are prevented by single‐photon detectors. In addition, auxiliary photons or DOFs are not required in the scheme. The necessary linear optical elements are fewer than the parity‐check‐based one.
Nonreversible surface relief formation in thin films of cinnamate derivatives containing benzoxazine structure
Authors: Doi Takashi , Rozhanskii Igor , Nakamura Takahiro , Shimokawa Tsutomu 
Published: January 2022

AbstractA novel, nonreversible surface relief (SR) system was developed using polymerizable low‐molecular‐weight compounds containing two or three [(E)‐3‐[4‐(6‐methyl‐2,4‐dihydro‐1,3‐benzoxazin‐3‐yl)phenyl]prop‐2‐enoyl]oxy units in which photoreactive cinnamate moieties and thermally curable benzoxazine moieties are included. The SR structure formation was conducted using thin films (thickness: 1.5 μm) on silicon wafers through a two‐step procedure including micropatterned ultraviolet irradiation at 23°C and then heating to induce the SR pattern formation. All of the four compounds synthesized in this study showed submicron‐height SR structure on their films. After being thermally treated at 200°C for 1 h, the thin films became insoluble, which ensured the formation of crosslinked network structures. The obtained nonreversible SR system is expected to be a candidate for microfluidic channel materials for cooling semiconductor chips as well as an alternative option for photolithography.
The resource‐based view, stakeholder capitalism, ESG, and sustainable competitive advantage: The firm's embeddedness into ecology, society, and governance
Authors: Bhandari Krishna Raj , Ranta Mikko , Salo Jari 
Published: January 2022

AbstractThe main research question of the study is this: Is the firm embedded into ecology, society, and governance (ESG), or vice versa? Using the resource‐based view as a theoretical lens, and stakeholder capitalism as a paradigm anchored in the Dashgupat Review, we demonstrate in a panel data over 26 years that at the firm level, the relationship between sustained competitive advantage and the ESG footprint is concave shaped, and the impact inequality multiple gaps of the ESG footprint are 4.75 times the providing capacity of the natural and business environment. To solve the common method variance, endogeneity, and unobserved heterogeneity, system GMM is used as a method in a dataset of US manufacturing firms from 1992 to 2019. At the end, we argue that extant attributes of a resource base for sustained competitive advantage have an inherent flaw anchored in the resource‐based view, as they ignore the “environmental, social, and governance (ESG) friendliness” attribute of a resource. Managers need to rethink the objective of their firms if they want to survive in the new ESG‐friendly economy with stakeholder supremacy.
Impact of brands' Facebook page characteristics and followers' comments on trust building and purchase intention: Alternative attractiveness as moderator
Authors: Nikbin Davoud , Aramo Thineletchemy , Iranmanesh Mohammad , Ghobakhloo Morteza 
Published: January 2022

AbstractDrawing on signaling theory, this research aims to examine the impact of brands' Facebook page characteristics (information variety, information currency, and responsiveness) and followers' comments on building trust and its consequent effect on purchase intention by considering attractiveness of alternatives as a moderator. Data were obtained from 396 brands' Facebook page followers in Malaysia using an online survey and analyzed using the partial least squares technique. The results indicated that a brand's Facebook page information variety and information currency significantly affect trust in that brand. Additionally, responsiveness and followers' positive comments on the Facebook page were found to have a significant influence on both trust in brand and trust in product. Furthermore, both trust in brand and trust in product were significantly related to intention to purchase. Our results revealed that alternative attractiveness negatively moderates the influence of trust on purchase intention. The findings extend the literature by illustrating that (i) the influence of customer‐generated information on trust is higher than the influence of company‐generated information; (ii) the determinants and impacts of trust in brand and trust in product are different; and (iii) existence of attractive alternatives may offset the impact of trust in brand on purchase intention. The findings are useful for brand managers and enable them to influence customers' trust through successful management of brands' Facebook fan pages.
Mind (for) the water: An indirect relationship between mindfulness and water conservation behavior
Authors: Pereira Maria C. , Simões Paula , Cruz Luís , Barata Eduardo , Coelho Filipe 
Published: January 2022

AbstractA growing number of studies have linked mindfulness with the adoption of environmentally friendly behaviors. We aim to contribute to this emergent research by putting forward a model in which the relationship between mindfulness and a specific pro‐environmental behavior, water conservation, is indirect. In this pursuit, we draw on the hierarchical model for the influence of psychological characteristics on individuals' behaviors. We propose that the relationship between mindfulness and water conservation is mediated by environmental beliefs, namely water utilitarian beliefs, and consumer abilities, specifically water‐related perceived consumer effectiveness. To collect the data, we relied on a pretested self‐report questionnaire that was distributed in a Portuguese municipality. We retained the responses from 876 individuals, for a net response rate of 54.8%. The research model was tested with structural equation modeling. The results indicate that mindfulness is negatively related to water utilitarian beliefs, that these are negatively related to perceived consumer effectiveness, which, in turn, is positively associated with water conservation behavior. In addition to these direct relationships, the results show that mindfulness is indirectly related to water conservation behavior and to perceived consumer effectiveness, and that water utilitarian beliefs are indirectly related to water conservation behavior. These novel results are used to derive managerial implications.
Anticoagulated de novo atrial flutter complicated by transitory ischemic attack in fatal COVID‐19
Authors: Finsterer Josef , Wilfing Astrid 
Published: January 2022

AbstractSARS‐CoV‐2 may not only manifest as pneumonia (COVID‐19) but also in other organs, including the brain (neuro‐COVID). One of the cerebral complications of SARS‐CoV‐2 is ischemic stroke. Transitory ischemic attack (TIA) in a SARS‐CoV‐2 positive has not been reported. A 78‐year‐old poly‐morbid male (diabetes, hypertension, and coronary heart disease), admitted for COVID‐19, developed atrial flutter on hospital day (hd) 2. Anticoagulation with enoxaparin was started. On hd5, he experienced a TIA despite sufficient anticoagulation. The patient expired on hd28 due to multi‐organ failure from sepsis due to superinfection with staphylococcus aureus. Infection with SARS‐CoV‐2 may be complicated by atrial flutter. Atrial flutter may be complicated by TIA despite sufficient anticoagulation, suggesting that standard anticoagulation may be insufficient to meet SARS‐CoV‐2‐associated hypercoagulability syndrome. Forced anticoagulation and adequate antibiosis in poly‐morbid SARS‐CoV‐2‐infected patients with hypercoagulability and cytokine storm are warranted.
Management of neonatal complications of macrosomia: A case report at a tertiary hospital in a developing country
Authors: Nuwagaba Julius , Dave Darshit 
Published: January 2022

AbstractFetal macrosomia can present with numerous complications. We report a case of a term baby girl with a birthweight of 5.31 kg admitted with respiratory distress and suffered several complications of macrosomia. There is a need to closely monitor neonates for early diagnosis and management of complications of macrosomia.
Complete Shift in Glycosyl Donor Specificity in Mammalian, but not C. elegans β1,4‐GalT1 Y286L mutants, Enables the Synthesis of N,N‐Diacetyllactosamine
Authors: Cao Ran , Li Jing‐Xuan , Chen Huan , Cao Cui , Zheng Feng , Huang Kun , Chen Ya‐Ran , Flitsch Sabine L. , Liu Li , Voglmeir Josef 
Published: January 2022

AbstractN,N‐diacetyllactosamine (LacdiNAc) is a motif present in various glycoconjugates of animal cell surfaces. The enzymatic synthesis of the LacdiNAc motif was previously achieved by using mutant variants of the human and bovine β1,4‐galactosyltransferase 1 (β1,4‐GalT1, EC 2.4.1.38). These enzymes bear a specific tyrosine to leucine substitution, which enables the transfer of GalNAc from UDP‐GalNAc. Herein, we present that the same tyrosine to leucine substitution in recombinant β1,4‐GalT1 orthologues of mouse, rat, or pig also resulted in the complete shift of the glycosyl donor specificity from UDP‐galactose to UDP‐GalNAc. In addition, we tested a previously undescribed β1,4‐GalT1 orthologue from C. elegans (CeGalT1). Given that this enzyme possesses an isoleucine residue in the wild‐type variant, this enzyme should prefer UDP‐GalNAc as a glycosyl donor substrate. Surprisingly, CeGalT1 was strictly specific for UDP‐Gal, but an isoleucine to tyrosine mutant variant of CeGalT1 widened the substrate range towards UDP‐GalNAc. In addition, the CeGalT1 mutant variant showed also significantly improved enzymatic activity towards UDP‐Gal. To further investigate the role of this tyrosine to leucine substitution of β1,4‐GalT1 and to evaluate the potential of this mutation for biotechnological applications, we generated Tyr286Leu B4galt1 mice using CRISPR/Cas9 gene editing and screened the milk of these mice for its ability to synthesize N,N‐diacetyllactosamine.
Constructing a multifunctional mesoporous composite of metallic cobalt nanoparticles and nitrogen‐doped reduced graphene oxides for high‐performance lithium–sulfur batteries
Authors: Gai Luhai , Zhao Chenhao , Zhang Ya , Hu Zhibiao , Shen Qiang 
Published: January 2022

AbstractElectrochemical properties of lithium–sulfur (Li–S) batteries are mainly hindered by both the insulating nature of elemental sulfur (i.e., molecular S8) and the shuttling effect or sluggish redox kinetics of lithium polysulfide intermediates (Li2Sn, 3 ≤ n ≤ 8). In this paper, a three‐dimensional mesoporous reduced graphene oxide‐based nanocomposite, with the embedding of metallic Co nanoparticles and the doping of elemental N (Co/NrGO), and its simply ground mixture with powdered S at a mass ratio of 1:6 (Co/NrGO/S) are prepared and used as cathode‐/separator‐coated interlayers and working electrodes in assembled Li–S cells, respectively. One of the effective cell configurations is to paste composite Co/NrGO onto both the S‐loading cathode and separator, showing good cycling stability (1070 mAh g−1 in the 100th cycle at 0.2 C), high‐rate capability (835 mAh g−1, 2.0 C), and excellent durability (905 mAh g−1 in the 250th cycle at 0.5 or 0.2 C). Compared with the experimental results of Co‐absent NrGO, electrochemical properties of various Co/NrGO‐based cell configurations clearly show multiple functions of Co/NrGO, indicating that the absence of Co/NrGO coatings and/or Co nanoparticles may be inadequate to achieve superior S availability of assembled Li–S batteries.
Development of Transition‐Metal‐Free Lewis Acid‐Initiated Double Arylation of Aldehyde: A Facile Approach Towards the Total Synthesis of Anti‐Breast‐Cancer Agent
Authors: Singh Sanjay , Mahato Rina , Sharma Pragya , Yadav Naveen , Vodnala Nagaraju , Kumar Hazra Chinmoy 
Published: January 2022

AbstractThis work describes a mild and robust double hydroarylation strategy for the synthesis of symmetrical /unsymmetrical diaryl‐ and triarylmethanes in excellent yields using Lambert salt (0.2–1.0 mol%). Despite the anticipated challenges associated with controlling selective product formation, unsymmetrical diaryl‐ and triarylmethanes products are obtained unprecedentedly. A highly efficient gram scale reaction has also been reported (TON for symmetrical product=475 and for unsymmetrical product=390). The synthetic utility of the methodology is demonstrated by the preparation of several unexplored diaryl‐ and triarylmethane‐based biologically relevant molecules, such as arundine, vibrindole A, turbomycin B, and certain anti‐inflammatory agents. A total synthesis of an anti‐breast‐cancer agent is also demonstrated. Control experiments, Hammett analysis, HRMS and GC‐MS studies reveal the reaction intermediates and reaction mechanism.
Chiral derivatives of covalent organic framework TpBD (NH2)2 used as stationary phases in gas chromatography
Authors: Wang Zhen , Xiong Wan‐Qi , Huang Zhi‐Feng , Qin Gai‐Zhao , Zi Min , Yuan Li‐Ming 
Published: January 2022

AbstractChiral covalent organic framework materials have many excellent properties, which have received much attention in the field of separation. Synthesized the covalent organic framework COF‐TpBD (NH2)2 modified, respectively, by L‐valine trifluoroacetyl derivative, L‐hydroxyproline, and (1S)‐(+)‐10‐camphorsulfonyl chloride, three capillary columns of chiral covalent organic framework materials were obtained for gas chromatography. Those columns are able to separate some chiral compounds, positional isomers, n‐alkanes, n‐alcohols, aromatic hydrocarbon mixture, and Grob's reagents. They are complementary to other chiral capillary columns and are possible for potential applications.