bluuebunny/crossref_metadata_2025_split huggingface dataset:
Ecotoxicological Evaluatation of Artisanal Effluents on Bacillus, Enterobacter, Amorphotheca, Cladosporium and Penicillium Species in Brackish Water
Authors: Wemedo Samuel A. , Williams Janet O. , Nrior Renner R. , Bagshaw Deinbo G. 
Published: May 2022

Aim: To assess the effect of the hydrocarbon discharges from the artisanal refineries on the community structure of microbial mats in an aquatic environment
Study Design: The study employs experimental design, statistical analysis of the data and interpretation.
Place and Duration of Study: The microbial mats, surface water and sediments samples were collected from four hydrocarbon polluted stations (A, B, C and D) and a control sampling station in Yellow island (Iyalla kiri) in Degema Local Government Area, in Rivers state Nigeria. The samples were immediately transported with ice packs to the Microbiology Laboratory of Rivers State University, Port Harcourt. The study lasted from March 2020 to February 2021, covering both wet and dry seasons.
Methodology: Different concentrations of fresh effluent (0, 1.625, 3.25, 6.5, 12.5, 25, 50 and 75%) were prepared in test tubes to final volume of 10ml. Each of the test tubes was inoculated with one milliliter (1ml) of the test organism. Five sets of concentrations were prepared for the five test organisms (Bacillus subtillis MW808817, Enterobacter ludwigiiMW767009, Amorphotheca resinae EU040230, Cladosporium cladosporioides MW793722 and Penicillium chrysogenum MN184857). The organisms were exposed to the pollutant for duration of 0, 4, 8, 12 and 24 hours and plated out using spread plate technique. The cultures were incubated for 24 hours for bacteria and five days for fungi. Median lethal concentration (LC50) was determined using SPSS version 20.
Results: The results showed that the percentage logarithm survival of the test organisms decreased with increase in exposure time and concentration. The LC50 of Bacillus subtillis MW808817 was 30.93%, Enterobacter ludwigii MW767009 was 29.74%, Amorphotheca resinae EU040230 was 19.65%,Cladosporium cladosporioides MW793722 was 20.08% and Penicillium chrysogenum MN184857 was 17.77%, (noting; the lower the LC50 the more toxic the pollutant).
Conclusion: The effluent discharge was more toxic on Penicillium chrysogenum MN184857 than the other test organisms. Also, the ecotoxicological evaluation of the effluents on the test organisms isolated from the study area showed that LC50 of the effluent was slightly toxic on the microbial population when the results obtained were compared to GESAMP Standard for Toxicity Ranking of Chemicals/Effluents in Marine Environment.
Evolution of the Average Temperature of the Interior Atmosphere of a Habitable Cell Made of Foamed Concrete in Burkina Faso
Authors: Ouédraogo Adelaïde Lareba , Malbila Etienne , Dabilgou Dieudonné , Amadou Fati Oumarou , Ouédraogo Souleymane , Ouédraogo Salifou , Messan Adamah , Kam Sié , Bathiebo Dieudonné Joseph , Kiéno Florent Pèlèga , Blanchart Philippe 
Published: May 2022

Aims: The energy domain is responsible for the production of many gaseous, liquid and solid pollutants, strongly contributing to climate change. The provision of bioclimatic habitats to households is therefore necessary since it will contribute to the reduction of energy consumption. This work consists in making a study of the thermal behavior of a habitat designed with foamed concrete (FC) in order to evaluate its thermal performance for the improvement of its thermal comfort and to compare its average internal temperature with those of other materials.
Study Design: A calculation model developed under the COMSOL Multiphysics 5.3a software was used to simulate the thermal behavior of a foamed concrete habitat. The meteorological data used are those of Ouagadougou in the month of April (hottest month in Burkina Faso) on April 15, 2019 (with April 15, the hottest day of the year 2019)
Methodology: The temperatures of each side of the walls were determined. Moreover, the study of the influence of the thickness of the walls on the average internal temperature made it possible to determine an optimal thickness. Then, the thermal phase shift, the thermal amplitude reduction and the damping factor were carried out.
Results: The results obtained in the weather conditions of April in Ouagadougou, lead to an average internal temperature of the building of about 304 K, for a wall thickness of 17.5 cm. There is a thermal phase shift of 8 hours, and a reduction in thermal amplitude of 9°C or a damping factor of 8.6%. The maximum average internal temperature of the foamed concrete was compared with those of the cement block, the CEB, the adobe, the CLB which present respectively 311 K; 309.2K; 309K; 308.5K.
Conclusion: A building constructed with foamed concrete has a low average internal temperature compared to cinderblock, CEB, adobe and CLB. Thus, this material makes it possible to provide more thermal comfort and can be used for the construction of habitats with good energy efficiency.
Relationship between insomnia and rest time between shifts among shift workers: A multicenter cross-sectional study
Authors: Sim Juho , Yun Byungyoon , Yoon Jin-Ha , Lee Jiho , Oh Juyeon , Cho Ara , Kim Sung-Kyung 
Published: May 2022

Abstract

Objectives
A rest time of less than 11 h taken by a shift worker between shifts is defined as quick return (QR). QR is shown to decrease sleep time by virtue of decreasing rest time, diminishing sleepiness and exhaustion, and increasing the number of sick days taken by employees. Therefore, in this multicenter retrospective study, the association between QR and the incidence of insomnia was established using the night-shift questionnaire from the Korean Workers Health Examination-Common Data Model.

Methods
Three hospitals collected the night-shift profiles and baseline demographic data of 33 669 workers between January 2015 and December 2017. The most recent date of examination was used for participants who had been examined multiple times at the same institution. We used multiple logistic regression to calculate the odds ratios (ORs) and 95% confidence intervals (CIs). The pooled ORs were estimated using combined results from the three institutions.

Results
The proportion of men was higher than that of women in the QR group at each institution. The pooled ORs were computed using combined data from the three institutions. Workers who reported a QR had the highest risk of sleeplessness (OR, 1.21; 95% CI, 1.12–1.31) compared to those workers who reported a slow return, after adjusting for possible confounders.

Conclusions
A substantial correlation was established between QR and insomnia using the CDM approach and data from multiple centers. This study may serve as a foundation for developing guidelines to enhance the health of shift workers and prevent occupational accidents.
Mental Health Care Use and Associated Factors in Systemic Sclerosis: A Scleroderma Patient‐Centered Intervention Network Cohort Study
Authors: Becetti Karima , Nguyen Joseph T. , Kwakkenbos Linda , Carrier Marie‐Eve , Tao Lydia , Gordon Jessica K. , Mancuso Carol A. , Welling Joep , Mouthon Luc , Bartlett Susan J. , Malcarne Vanessa L. , Thombs Brett D. , Spiera Robert F. ,   Scleroderma Patient‐Centered Intervention Network Investigators
Published: May 2022

ObjectiveSystemic sclerosis (SSc) has significant psychosocial implications. We aimed to evaluate the proportion of participants in a large international SSc cohort who used mental health services in a 3‐month period and to evaluate demographic, psychological, and disease‐specific factors associated with use.MethodsBaseline data of participants enrolled in the Scleroderma Patient‐Centered Intervention Network Cohort were analyzed. We determined the proportion that used mental health services and the source of services in the 3 months prior to enrollment. Multivariable logistic regression was used to identify variables associated with service use.ResultsOf the 2319 participants included in the analysis, 417 (18%) used mental health services in the 3 months prior to enrollment. General practitioners were the most common mental health service providers (59%), followed by psychologists (25%) and psychiatrists (19%). In multivariable analysis, mental health service use was independently associated with higher education (odds ratio [OR] 1.07, 95% confidence interval [CI] 1.03‐1.11), smoking (OR 1.06, 95% CI 1.02‐1.11), being retired (OR 0.60, 95% CI 0.38‐0.93), having limited SSc (OR 1.39, 95% CI 1.02‐1.89), and having higher anxiety symptom scores (OR 1.04, 95% CI 1.03‐1.06) and lower self‐efficacy scores (OR 0.90, 95% CI 0.83‐0.97). Variables not significantly associated included age, race, disease manifestations, depression symptom scores, and body image distress.ConclusionAbout 18% of participants in a large international cohort received mental health services in a 3‐month period, of whom the majority received these services from a general practitioner.
Finely‐Dispersed Ni2Co Nanoalloys on Flower‐Like Graphene Microassembly Empowering a Bi‐Service Matrix for Superior Lithium–Sulfur Electrochemistry
Authors: Li Gaoran , Qiu Weilong , Gao Wanjie , Zhu Yaojie , Zhang Xiaomin , Li Hongyang , Zhang Yongguang , Wang Xin , Chen Zhongwei 
Published: May 2022

AbstractLithium–sulfur (Li–S) batteries present a promising solution to high‐energy and low‐cost energy storage. However, the conversion‐type redox mechanism determines the poor fulfillment of battery chemistry in terms of reversibility and kinetics. Herein, a flower‐like graphene microassembly decorated with finely‐dispersed Ni2Co nanoalloy (Ni2Co@rGO) is developed as advanced host matrix for Li–S batteries. Combining computational, physicochemical, and electrochemical studies, Ni2Co nanoalloys are unveiled synergizing strong adsorbability against polysulfide shuttling and excellent catalytic activity for sulfur conversions. Meanwhile, the sophisticated architecture renders facile electron/ion transport and highly‐exposed active interfaces. These virtues collaboratively contribute to fast and durable sulfur electrochemistry with a minimum capacity degradation of 0.034% per cycle over 500 cycles and a rate capability up to 5 C. Besides, the implementation of Ni2Co@rGO as the anode matrix tames the Li redox behavior benefiting from the enhanced lithiophilicity and reduced local current density. As such, the full cell configuration pairing S‐Ni2Co@rGO cathode and Li‐Ni2Co@rGO anode realizes a favorable areal capacity of 4.53 mAh cm−2 under high sulfur loading (4.0 mg cm−2) and limited electrolyte (E/S = 6.0 mL g−1). This work offers an elaborate bi‐service matrix engineering to simultaneously improve the conversion reversibility and kinetics for superior Li–S batteries.
Non‐Covalent Interaction of Atomically Dispersed Cu and Zn Pair Sites for Efficient Oxygen Reduction Reaction
Authors: Deng Daijie , Qian Junchao , Liu Xiaozhi , Li Hongping , Su Dong , Li Henan , Li Huaming , Xu Li 
Published: May 2022

AbstractDual–single‐atom catalysts with synergistic effect of adjacent atomic metal sites show a great potential for oxygen reduction reaction (ORR). Herein, a dynamical synthetic strategy is demonstrated for the rational design of dual‐atom catalyst ((Zn, Cu)−NC) with non‐covalent Cu and Zn sites as nitrogen‐doped carbon as support. Owing to the non‐covalent interaction of Zn and Cu atomic pair sites, (Zn, Cu)−NC exhibits significant performances for ORR, surpassing the catalysts with individual Zn or Cu site. The theoretical calculations reveal that (Zn, Cu)−NC can highly activate the linear O2 molecule via the non‐covalent interaction between Zn and Cu pairs, providing the more effective overlap between the metal 3d orbitals and O 2p orbital. Therefore, the ORR activity is optimized with the improvement of the adsorption configuration and adsorption energy of O2. Further, both liquid and quasi‐solid zinc−air batteries with (Zn, Cu)−NC as air cathodes achieve remarkable energy density and stability. This research proposes a facile synthetic strategy to construct single‐atom catalysts and presents an insightful understanding of the non‐covalent interplay between heteronuclear metal atoms in dual‐atom catalysts.
Asymmetric Substitution of End‐Groups Triggers 16.34% Efficiency for All‐Small‐Molecule Organic Solar Cells
Authors: Ge Jinfeng , Hong Ling , Ma Houying , Ye Qinrui , Chen Yanwei , Xie Lin , Song Wei , Li Dandan , Chen Zhenyu , Yu Kuibao , Zhang Jianqi , Wei Zhixiang , Huang Fei , Ge Ziyi 
Published: May 2022

AbstractAsymmetric substitution of end‐groups is first applied in molecular donors. Three commonly used end‐groups of 2‐ethylhexyl cyanoacetate (CA), 2‐ethylhexyl rhodanine (Reh), and 1H‐indene‐1,3(2H)‐dione (ID) are combined to construct a series of symmetric and asymmetric donors. Correspondingly, the asymmetric donors SM‐CA‐Reh and SM‐CA‐ID show largely increased dipole moments (2.14 and 3.39 D, respectively) and enhanced aggregation propensity, as compared to those of symmetric donors of SM‐CA, SM‐Reh, and SM‐ID. Using N3 as acceptor, interestingly, SM‐CA‐Reh integrates the photovoltaic characteristics of high fill factor (FF) for SM‐CA and high short‐circuit current density for SM‐Reh, and delivers a record power conversion efficiency (PCE) of 16.34% with a high FF of 77.5%, which is much higher than 15.41% for SM‐CA and 14.76% for SM‐Reh. However, SM‐CA‐ID and SM‐ID give the lower PCE of 8.20% and 2.76%. Characterization results suggest that the π–π interaction mainly dictates the packing morphology of blend films instead of dipole effect or crystallinity. Mono‐substitution of Reh facilitates the molecular demixing appropriately but keeps the characteristic of the fine bicontinuous network of SM‐CA:N3. SM‐CA‐Reh:N3 shows more efficient exciton extraction, higher hole transport, and better miscibility. These results well explain the merits integration and improved photovoltaic performance.
Dimensionality‐Controlled Evolution of Charge‐Transfer Energy in Digital Nickelates Superlattices
Authors: Lu Xiangle , Liu Jishan , Zhang Nian , Xie Binping , Yang Shuai , Liu Wanling , Jiang Zhicheng , Huang Zhe , Yang Yichen , Miao Jin , Li Wei , Cho Soohyun , Liu Zhengtai , Liu Zhonghao , Shen Dawei 
Published: May 2022

AbstractFundamental understanding and control of the electronic structure evolution in rare‐earth nickelates is a fascinating and meaningful issue, as well as being helpful to understand the mechanism of recently discovered superconductivity. Here the dimensionality effect on the ground electronic state in high‐quality (NdNiO3) m/(SrTiO3)1 superlattices is systematically studied through transport and soft X‐ray absorption spectroscopy. The metal‐to‐insulator transition temperature decreases with the thickness of the NdNiO3 slab decreasing from bulk to 7 unit cells, then increases gradually as m further reduces to 1 unit cell. Spectral evidence demonstrates that the stabilization of insulating phase can be attributed to the increase of the charge‐transfer energy between O 2p and Ni 3d bands. The prominent multiplet feature on the Ni L3 edge develops with the decrease of NdNiO3 slab thickness, suggesting the strengthening of the charge disproportionate state under the dimensional confinement. This work provides convincing evidence that dimensionality is an effective knob to modulate the charge‐transfer energy and thus the collective ground state in nickelates.
Low viscous aminoalkyl‐phenyl‐silane with π–π interaction and its optimal SO2 capture condition
Authors: Hao Bo , Zhao Wenbo , Tong Xiangxin , Shan Shaoyun , Chen Yuan 
Published: May 2022

AbstractThe high viscosity of ionic liquids (ILs) limits their practical application in SO2 capture. In this work, the low viscous aminoalkyl‐phenyl‐silanes were synthesized to capture SO2. The π–π interaction between phenyl groups reduced the volatility of aminoalkyl‐phenyl‐silanes greatly, but it did not increase their viscosity significantly. Among them, N‐[(dimethylphenylsilyl)methyl]‐N‐methylbenzenemethanamine (DPSA) containing two phenyl groups exhibited the strongest π–π interaction. Therefore, the thermal decomposition temperature reached 150°C, while its viscosity was only 8.45 mPa·s at 25°C, which is much lower than that of ILs. The absorption enthalpy and entropy change of DPSA absorption reaction were −79.284 kJ/mol and −224 J/mol/K, respectively. These values are more negative than those of SO2 capture reaction with ILs. An objective function was proposed to obtain the optimal absorption and desorption temperature. Furthermore, five cycles of regeneration experiments indicated that DPSA possessed good regeneration ability.
Smart connected worker edge platform for smart manufacturing: Part 2—Implementation and on‐site deployment case study
Authors: Donovan Richard P. , Kim Yoon G. , Manzo Anthony , Ren Yutian , Bian Shijie , Wu Tongzi , Purawat Shweta , Helvajian Henry , Wheaton Marilee , Li Bingbing , Li Guann‐Pyng 
Published: May 2022

AbstractIn this paper, we describe specific deployments of the Smart Connected Worker (SCW) Edge Platform for Smart Manufacturing through implementation of four instructive real‐world use cases that illustrate the role of people in a Smart Manufacturing paradigm through which affordable, scalable, accessible, and portable (ASAP) information technology (IT) acquires and contextualizes data into information for transmission to operation technologies (OT). For case one, the platform captures the relationships between energy consumption and human workflows for improved energy productivity while workers interact with machines during semiconductor manufacturing. The platform utilizes human cognition to identify anomalous machine behavior for root cause analysis of system faults via neural network (NN) that recognize alarm postures of workers with cameras. For case two, a smart assembly line is demonstrated for state monitoring and fault detection. Machine learning (ML) models are used to recognize system states and identify fault scenarios with human intervention. For case three, the platform monitors human–machine interactions to classify manufacturing machine states for proper operations and energy productivity. Internal energy states of individual or collections of manufacturing equipment are determined via NN based algorithms that disaggregate signals associated with smart metering typically deployed at manufacturing facilities. These methods predict the real time energy profile of each machine from the total energy profile of a manufacturing site. For case four, a software defined sensor system built with scientific workflow engines is demonstrated for contextualizing data from laser surface refraction for characterization, and diagnostics in the processing of additively manufactured titanium alloy.
Preparation, characterization, and application of hollow nano‐TiO2@modified graphene/fluorinated copolymer nanocomposite leather finishing agents
Authors: Pan Hui , Yang Lin , Liu Guoxing , Wang Xiaodong 
Published: May 2022

AbstractA novel nanocomposite leather‐finishing agent (denoted as H‐TiO2@SDS‐rGO/F‐PBMA) composed of fluorinated copolymer (denoted as F‐PBMA) matrix using methyl methacrylate (abbreviated as MMA), butyl acrylate (abbreviated as BA) as well as acrylic acid (abbreviated as AA) as monomers and H‐TiO2@SDS‐rGO composite nanoparticles as nano‐additives were successfully fabricated by aqueous emulsion polymerization in this paper. The hollow TiO2 nanoparticles (denoted as H‐TiO2) were firstly prepared with tetrabutyl titanate as titanium source wall and tetraethyl silicate as silicon source core through an alkali etching method, and then they were compounded with reduced graphene oxide (rGO) modified by sodium dodecyl sulfate (denoted as SDS‐rGO) for obtaining H‐TiO2@SDS‐rGO composite nanoparticles. Fourier transform infrared spectra, X‐ray diffraction, Raman spectra, scanning electron microscopy, and nuclear magnetic resonance spectra were used to characterize the structure and morphology of different samples. The experimental results reveal that the nanocomposite leather‐finishing agent not only has excellent transparency, but also endows sheepskin better weather resistance, thermal stability, hydrophobicity and mechanical properties compared with traditional leather finishing agents.
Electroantennographic activity of 21 aliphatic compounds that bind well to a locust odorant‐binding protein
Authors: Li Jia , Zhang Long 
Published: May 2022

AbstractOdorants that bind well to odorant‐binding proteins (OBPs) often trigger olfactory responses and have important biological significance. The locust Locusta migratoria (Meyen) (Orthoptera: Acrididae) is a serious agricultural pest. Twenty‐one saturated aliphatic compounds with carbon–oxygen bonds and straight chains of 10–17 carbon atoms bind well to an L. migratoria OBP. In this study, olfactory activities of these aliphatic compounds on L. migratoria adult males were tested by electroantennography (EAG) and comparatively analyzed. Four alcohols (undecanol, dodecanol, tridecanol, and tetradecanol), two ketones (2‐dodecanone and 2‐tridecanone), and two esters (ethyl octanoate and ethyl nonanoate) triggered strong EAG responses, and there was no significant difference between them. The results suggest that the eight compounds are more likely to have important biological significance than the other compounds. Moreover, we found that there is not necessarily a positive correlation between the olfactory activity of odorants and their binding ability with OBP. The study contributes to understanding the odorants with biological significance for L. migratoria and the molecular mechanism of the locust's olfaction.
Comparative study of pomelo‐peel‐derived hydrochar and torrefied poultry‐litter on coal fuel blends: Combustibility, synergy factor, and ash analysis
Authors: Xue Tianjiao , Fakudze Sandile , Ma Ru , Han Jiangang , Chu Qiulu , Zhou Peiguo , Chen Jianqiang 
Published: May 2022

AbstractCo‐firing is considered to be a promising approach for the reduction of CO2 emissions from coal‐fired plants. However, the utilization of fruit‐waste‐based feedstocks is less common than the use of animal‐waste feedstocks, which are usually accompanied by high toxic ash content and low combustibility. In this work, pomelo‐peel‐derived hydrochar (PPHC), characterized by excellent fuel properties and combustibility, was systematically compared with torrefied poultry litter (PLBC), to promote its use as an eco‐friendly solid fuel. The two bio‐based solid fuels were prepared using hydrothermal carbonization (180–240 °C) and torrefaction (220–310 °C), respectively. Elemental analysis, proximate analysis, scanning electron microscopy, Brunauer–Emmett–Teller (BET) analysis, and Fourier‐transform infrared (FTIR) spectroscopy were used to study the physicochemical and structural properties of the prepared chars. The combustion behavior and post‐combustion ash content of PPHC/coal and PLBC/coal blends were assessed by thermogravimetric analysis (TGA) and X‐ray fluorescence (XRF). Fuel blends of PPHC and coal showed superior combustibility (S = 5.77–14.79 × 10−12), stronger synergistic effects (1.48–3.19°C−3 min−1/2), and lower activation energy requirements (28.5–31.6 kJ mol−1), in comparison with PLBC/coal blends. Comparative analysis of heavy metal content revealed that PPHC/coal blends were characterized by less toxicity, with lower concentrations of Fe, Mn, Zn, Cu, As, and Co. Hence, the results demonstrated that pomelo peel hydrochar, with excellent combustibility and environmental friendliness, could serve as a better alternative for co‐firing with coal. Meanwhile, torrefied poultry litter showed undesirable ash properties, suggesting an urgent need for the development of alternative methods for its treatment. © 2022 Society of Chemical Industry and John Wiley & Sons, Ltd.