bluuebunny/crossref_metadata_2025_split huggingface dataset:
Enhanced OER Performance by Cu substituted Spinel Cobalt Oxide
Authors: Tao Leiming , Pang Kui , Huang Liming , Han Jiada , Zhang Mengdi , Yu Changlin 
Published: July 2022

Abstract
Cobaltite spinel oxides (CuCo2O4), which show electrocatalytic activity for oxygen evolution reaction (OER), are readily synthesized using a facile hydrothermal method, with a stationary ratio, uniform flower-like mesopores morphology, and high crystallinity. We have carried out first-principles calculations on the mechanism of the reaction pathway and the Gibbs free energy diagram of CuCo2O4 structures using density functional theory (DFT) and purely confirmed by experimental results. This catalyst performed an outstanding OER performance with an overpotential 230 mV at 10 mA∙cm− 2 in 1 M KOH, which was close to IrO2 with an overpotential 190 mV at 10 mA∙cm− 2. This work provides a facile method for electrocatalytic oxygen production with enhanced conductivity and enhanced OER by replacing cobalt with copper.
Social frailty and risk factors in Chinese elderly- a national cross-sectional study
Authors: Qi Xin , Li Yingying , Hu Jiabin , Meng Lingbing , Zeng Ping , Shi Jing , Jia Na , Zeng Xuezhai , Li Hui , Zhang Qiuxia , Li Juan , Liu Deping 
Published: July 2022

Abstract
Background: Social frailty has not yet been comprehensively studied in China. We aim to study the prevalence of social frailty in the Chinese elderly population, as well as identify related factors and urban-rural differences.Methods: Data were obtained from the database of the Fourth SSAPUR (Survey of the Aged Population in Urban and Rural China), a national cross-sectional study using a multistage, stratified, cluster-sampling method for which 224,142 adults aged 60 years or older were recruited between Aug. 1, 2015, and Aug. 31, 2015. Participants were interviewed to obtain demographic data and information regarding family, health and medical conditions, health care service status, living environment conditions, social participation, protected rights status, spiritual and cultural life, and health. Social frailty was assessed in five areas (HALFE Social Frailty Index) including inability to help others, limited social participation, loneliness, financial difficulty, and living alone, with scores of three and above being defined as social frailty.Results: A total of 222,179 cases were analyzed, of which 33,773 (15.2%) met the criteria for social frailty. By age, we found the highest prevalence of social frailty in participants 75-79 years old. By gender, we found a higher prevalence in men than women for ages 60-64, but a higher prevalence in women than men for ages 70-84. The prevalence in rural populations was higher than in urban populations for all ages. The prevalence was higher among women than men in urban areas (11.7% in women vs. 9.9% in men, P<0.0001), while it was higher among men than women in rural areas (19.2% in women vs. 20.6% in men, P<0.0001). Physical exercise had a significant effect on urban prevalence of social frailty (P<0.0001) but not on rural prevalence (P=0.446). Cataract glaucoma had a significant effect on rural prevalence of social frailty (P<0.0001) but not on urban prevalence (P=0.526).Conclusions: Based on the HALFE social frailty index, the prevalence of social frailty among the elderly in China is 15.2%, with the highest prevalence in those between 75 and 79 years old and more prevalent in rural than urban areas.
Risk management under climate change and its implication on technical efficiency: Evidence from Senegal
Authors: Collins-Sowah Peron Agbeti , Adjin Kougblenou C. , Henning Christian H.C.A , Kanu Edmond A. 
Published: July 2022

Abstract
In the absence of well-functioning markets to manage climatic-related risks, farm households in low-income countries mostly rely on informal traditional risk hedging mechanisms to avoid, reduce exposure to risks and increase the resilience of production systems. The use of such risk management tools or strategies has consequences for input use, levels of investments, and allocation of scarce resources, and thus have implications for production efficiency. Using empirical data from a nationally representative farm household survey in Senegal, this study evaluated the impact of different risk management strategies employed by farm households on technical efficiency. The study employed a sample selection stochastic production frontier approach and a meta-frontier model. The findings of the study suggest that the use of ex-post risk management strategies is associated with higher technical efficiencies with respect to the meta-frontier compared to other risk management strategies. Households, employing only ex-ante risk management strategies were observed to be the least technically efficient compared to households not managing risks or employing ex-post using other risk management strategies. The findings also suggest that managing production risks using multiple strategies does not necessarily result in the highest technical efficiency gain compared to the use of single or isolated strategies. The findings underscore the need to evaluate the trade-offs and likely consequences of risk management approaches used by farm households to provide context-specific policy recommendations.
Gene cloning, expression pattern, and response to dietary total lipids and phospholipids of hormone-sensitive lipase (HSL) in the Oriental river prawn Macrobrachium nipponens
Authors: Wang Qianqian , Cai Chunfang , Zhang Junbiao , Dianzhang Shui , Cui Guangtong , Wang Zhi , Ren Rengjie , Wu Ping , Ye Yuantu 
Published: July 2022

Abstract
Hormone-sensitive lipase (HSL) is an important regulator of cellular lipid homeostasis and catalyzes the hydrolysis of stored triacylglycerol. In this study, the full-length cDNA sequence of HSL of Macrobrachium nipponense (M. nipponense) was identified and cloned for the first time from a hepatopancreas cDNA library by using reverse transcription-polymerase chain reaction and rapid amplification of cDNA ends. The complete HSL sequence was 3575 bp and encoded a 785 amino acid peptide with the catalytic core (GXSXG) containing a serine residue. The phylogenetic tree revealed that the gene of HSL of M. nipponense is closely related with that of Penaeus vanmamei. The tissue distribution showed that the mRNA expression level of HSL in the hepatopancreas were significantly higher than that in other tissues (P < 0.05). Furthermore, the quantitative real-time PCR results showed that HSL expression in the hepatopancreas was upregulated by an increase in dietary lipids and is partially inhibited when the ratio of phospholipids was increased in the lipid mixture. These results demonstrate that HSL is a novel gene involved in lipid metabolism of M. nipponensis and that HSL expression varies depending on the type of lipid.
Study on High-Speed Machining of 2219 Aluminum Utilizing Nanoparticle-Enhanced Minimum Quantity Lubrication (MQL) Technique
Authors: JAMES SAGIL , Mazaheri Mehrshad 
Published: July 2022

Abstract
The lubricant choice is a critical factor in the high-speed machining process, and it can impact the machining surface quality and also the ultimate material properties. This paper investigates the microstructural surface finishing and heat generated during the high-speed cutting process (machining speed 3800 RPM) of 2219 aluminum alloy. The study examines flood coolant and five different nanofluids made by synthesizing 0.2–2% concentration of Al2O3 nanoparticles into ultra-food-grade mineral oil utilizing nanoparticle-enhanced minimum quantity lubrication (MQL) technique. In the MQL method, unlike the current known cooling fluid systems, the nanofluid provides a thin lubricant film that leads the heat created by friction to be transmitted to the chips and exits the interface. Also, the small amount of lubricant used for MQL makes this technique more environmentally friendly. The study revealed the chemistry between the MQL of choice and the corresponding surface finishing. As a result, the nanofluid with a 0.5% concentration of nanoparticles has the most optimal machining result. Furthermore, increasing nanoparticle concentration does not indicate any further improvement in the result. The results of this study could be instrumental to developing environmental-friendly machining solutions for aluminum alloys at commercial scales.
Anti-Corrosion potential of the Ortho and Para-Substituted Schiff Bases of 2- Methoxybenzaldehyde on Fe (110) surface in acid medium: Synthesis, DFT and Molecular Dynamics Studies
Authors: Ibeji Collins U. , Akintayo Damilola C. , Oluwasola Henry O. , Akintemi Eric O. 
Published: July 2022

Abstract
Corrosion inhibition potential of two synthesised Schiff base ligands; (E)-2-((2-methoxybenzylidene)amino)phenol L1 and (E)-2-((4-methoxybenzylidene)amino)phenol L2 were carried out by Density Functional Theory (DFT) and Molecular dynamics (MD) methods and theoretically explain the inhibitors’ intrinsic properties and adsorption mechanism in the corrosion study. The adsorption mechanism of inhibitor on the surface of the Fe metal occurred via chemisorption inferred from the Gibbs free energy (ΔGads). Scanning electron microscopy (SEM) showed a mild degradation on the surface of the mild steel immersed in the L1, and L2 inhibited acid solution, which could be because of surface coverage. DFT calculations revealed that the hybrid B3LYP functional performed better than M06-2X meta-functional in determining the energies of the synthesized Schiff bases for corrosion inhibition giving lower ΔE values 3.86 eV and 3.81 eV for L1 and L2. The MD simulation revealed that the orientation of inhibitors on the surface of the metal resulted in the coordination bond formation and that the interaction energy of L2 was -746.84 kJ/mol compared to -743.74 kJ/mol of L1. The DFT and MD results were in agreement.
Alarm communication predates eusociality in termites
Authors: Sillam-Dussès David , Jandák Vojtěch , Stiblik Petr , Delattre Olivier , Chouvenc Tom , Balvín Ondřej , Cvačka Josef , Soulet Delphine , Synek Jiří , Brothánek Marek , Jiříček Ondřej , Engel Michael , Bourguignon Thomas , Sobotnik Jan 
Published: July 2022

Abstract
Termites (Blattodea: Isoptera) have evolved specialized defensive strategies for colony protection. Alarm communication enables workers to escape threats while soldiers are recruited to the source of disturbance. Here, we studied the vibroacoustic and chemical alarm communication in the wood roach Cryptocercus and in 20 termite species including seven of the nine termite families, all life-types, and all feeding and nesting habits. Using a multidisciplinary approach, we found that vibratory alarm signals represent an ethological synapomorphy of termites and Cryptocercus, while chemical alarms evolved independently in several cockroach groups, and at least twice in termites. Vibroacoustic alarm signaling patterns were the most complex in Neoisoptera, in which they were often combined with chemical signals. The alarm characters correlated to phylogenetic position, food type and hardness, foraging area size, and nesting habits. Overall, species of Neoisoptera have developed the most sophisticated communication system amongst termites, potentially contributing to their ecological success.
A new method for the design and development of smart kit for early stage detection and prevention from covid 19 using IoT connected devices
Authors: Ramu Senthil Kumar , Paramasivam Suresh Kalichikadu , Ponnuswamy Leninpugalhanthi , Loganathan Ashok Kumar , Lamba Ravita , Panchal Hitesh , Thangaraj Kokilavani , Shanmugam Maheswaran , Muthusamy Suresh 
Published: July 2022

Abstract
As World Health Organization (WHO) recommends to prevent infection spread includes regular hand washing, wearing a mask in public places, covering mouth and nose when coughing and sneezing, avoid close contact with anyone showing symptoms of respiratory illness. According to a study, people touch their faces more than 20 times an hour on average, which involves contact with the eyes, nose, or mouth. In India people often wear the same mask repeatedly without disinfecting them and a majority of the population do not wear a mask or follow social distancing protocols, which leads to further spread of the virus. This paper discusses a cost effective and smart solution for citizen in the form of a smart kit which contains multiple Internet of Things (IoT) devices with shared connectivity, each addressing a particular problem, which makes following the pandemic protocols easier and effective for the average citizen and the frontline workers.
A New Diagonal Quasi-Newton Algorithm for Unconstrained Optimization Problems
Authors: Nosrati Mahsa , Amini Keyvan 
Published: July 2022

Abstract
This paper presents a new diagonal quasi-Newton method for solving unconstrained optimization problems based on the weak secant equation. The new method uses new criteria to generate the Hessian approximation to control the diagonal elements. We establish the global convergence of the proposed method with the Armijo line search. Numerical results on a collection of standard test problems show that the proposed method is superior to several certain diagonal methods.Mathematics subject classification 90C30 . 65K05
What can we do to prevent knee osteoarthritis? Evidence from a genetically informed perspective
Authors: Xu Jiawen , Li Shuai , Si Haibo , Ma Jun , Zeng Yi , Wu Yuangang , Zhang Shaoyun , Shen Bin 
Published: July 2022

Abstract
Object: To determine some modifiable risk factors for KOA through MR analysis from a genetically informed perspective to achieve early prevention to reduce the prevalence of KOA in the population.Methods: First, we used a series of quality control steps to identify eligible instrumental SNPs that were strongly related to exposure. Second, we used numerous dependable analytical methods (Inverse-variance weighting, MR-PRESSO method, weighted median, MR–Egger regression, and MR. RAPS method) to make our conclusions more robust and credible. The MR–Egger intercept test, Cochran’s Q test and “leave-one-out” sensitivity analysis were performed to evaluate the horizontal pleiotropy, heterogeneities, and stability of these genetic variants on KOA. Outlier variants identified by the MR-PRESSO outlier test were removed step-by-step to reduce heterogeneity and the effect of horizontal pleiotropy.Results: Through double sample MR analysis, we found a causal association between obesity and KOA, and obesity was positively correlated with the incidence of KOA (IVW: beta (95% CI), 0.144 (0.089, 0.199); OR (95% CI) 1.155 (1.093, 1.221); p =3.09e-7). The genetic predisposition to smoking was associated with a decreased risk of KOA (IVW: beta (95% CI), 0.178 (0.045, 0.311); OR (95% CI), 1.195 (1.046, 1.365); p =0.008). In addition, there was a causal association between alcohol consumption and KOA (IVW: beta (95% CI), 0.347 (0.003, 0.692); OR (95% CI) 1.416 (1.003, 1.998); p =0.047).Conclusion: Our study confirmed some controllable risk factors (smoking, drinking and obesity) had causal associations with KOA from a genetic point of view, which provides an important clue for the prevention and treatment of KOA.
A Novel Feature Selection Method Based on Bio-inspired Artificial Intelligence for palm vein authentication
Authors: Ghoualmi Lamis , Benkechakche Mohamed-El-Amine , Draa Amer 
Published: July 2022

Abstract
Recently, both industry and academics are paying increasingly more attention to bio-metric authentication using palm vein patterns due to the benefits it provides over traditional methods, like those that rely on a fingerprint, iris, or face. However, feature extraction of the palm vein feature, which seeks to collect the most distinctive features that uniquely identify individuals might have redundant and useless features, which would reduce the performance of the bio-metric system and cause a dimension issue. This paper presents an improved feature selection technique based on a bio-inspired artificial intelligence algorithm called Discrete Artificial Bee Colony (DABC) for palm vein bio-metric authen-tication. The best set of features from those offered by Gabor feature extractor are selected using the DABC algorithm. In attempt to grant additional diversity and effectively explore the solution space, a variant of Opposition Based Learning (OBL) notion is implemented. The proposed approach, termed Modified Opposition based DABC (MODABC), has been evaluated using the CASIA palm vein database in comparison to a number of feature selection algorithms based on bio-inspired artificial intelligence. The experimental findings demonstrate that the presented method perform better that the literature in a number of areas, including accuracy, FRR, FAR, feature vector size, and fitness values. The method being proposed enables providing a suitable balance between the feature vector size and the authentication rate.
Operando tomographic microscopy during laser-based powder bed fusion
Authors: Makowska Malgorzata , Verga Fabrizio , Pfeiffer Stefan , Marone Federica , Chang Cynthia , Schlepütz Christian , Florio Kevin , Wegener Konrad , Graule Thomas , Petegem Steven Van 
Published: July 2022

Abstract
Laser-based Powder Bed Fusion (LPBF) of oxide ceramics enables fabrication of objects with complex three-dimensional shapes, which are impossible to achieve using conventional manufacturing routes. However, mechanical properties of dense LPBF-manufactured ceramics are very poor due to large amount of structural defects. To acquaint deeper understanding of the underlying mechanisms, operando tomographic microscopy during LPBF of a magnetite-modified alumina using a pulsed, green laser has been carried out. Operando 3-dimensional information provides an insight into phenomena not accessible with other techniques. The effect of the laser energy density on the surface roughness, powder denudation zone and porosity formation mechanisms is investigated. Using increasing power results in significant increase of the melt pool width, but not of its depth and no melt pool depression is observed. For the investigated ceramic system, the forces due to the recoil pressure do not significantly influence the melt pool dynamics. Increasing power leads to avoid the lack of fusion porosity, but enhances formation of spherical porosity that is formed by either reaching boiling point of liquid alumina, or by introducing gas bubbles by injection of hollow powder particles into the liquid.
Identification of a Variant in NLRP3 Gene in a Patient with Muckle-Wells Syndrome: A Case Report
Authors: liu jia , Zhang Ranran , Yi Zhi , Lin Yi , Chang Hong , Zhang Qiuye 
Published: July 2022

Abstract
Background: Cryopyrin-associated periodic syndrome (CAPS), a rare genetic autoimmune disease, is composed of familial cold autoinflammatory syndrome (FCAs), Muckle-Wells syndrome (MWS), and neonatal onset multisystem inflammatory disease (NOMID). MWS is caused by dominantly inherited or de novo gain-of-function mutations in the NOD-like receptor 3 (NLRP3) gene. At present, there is no report about the variation of R262W in China.Case presentation: We reported a 3-year-old Chinese boy who had recurrent fever without obvious inducement, bilateral conjunctival congestion, and urticarial-like rash. Laboratory examination showed elevation in leukocyte count, neutrophil count, erythrocyte sedimentation rate (ESR), and C-reactive protein (CRP) and serum amyloid protein (SAA) levels. Whole exome sequencing identified a missense variation c.784-786delinsTGG (p.R262W) in the coding region of the NLRP3 gene. Conclusion: A classical variant of the NLRP3 gene in a patient with MWS was first reported in China.
Genome sequence analysis of H7N3 subtype avian influenza virus originated from wild birds and its potential infectivity in mice
Authors: Yin Xin , Wu Tiantian , Peng Cheng , Li Jinping , Liu Shuo , Hou Guangyu , Jiang Wenming , Liu Hualei 
Published: July 2022

Abstract
In 2021, an H7N3 avian influenza virus (AIV) was isolated from a mallard in Tianhewan Yellow River National Wetland Park, Ningxia Hui Autonomous Region, China. Sequences analysis showed that this strain received its genes from H7, H6, H5, H3, and H1 AIVs of domestic poultry and wild birds in Asia and Europe. It was low pathogenic in chickens and mild pathogenicity in mice. These results suggest that the importance of continued surveillance of the H7N3 virus to better understand the ecology and evolution of the AIVs in poultry and wild birds and the potential threat to human.
Nodeless electron pairing in CsV3Sb5-derived kagome superconductors
Authors: Okazaki Kozo , Zhong Yigui , Liu Jinjin , Wu Xianxin , Akifumi Mine , Li Yongkai , Najafzadeh Sahand , Han Xinloong , Kondo Takeshi , Hu Jiangping , Shin Shik , Yin Jia-Xin , Wang Zhiwei , Shi Xun , Yao Yugui 
Published: July 2022

Abstract
The newly discovered kagome superconductors represent a promising platform for investigating the quantum interplay between band topology, electronic order, and lattice geometry. Despite extensive research efforts on this system, the nature of the superconducting ground state remains elusive. In particular, consensus on the electron pairing symmetry has not been achieved so far, in part owing to the lack of a momentum-resolved measurement of the superconducting gap structure. Here we report the direct observation of a nodeless, nearly isotropic and orbital-independent superconducting gap in the momentum space of two exemplary CsV3Sb5-derived kagome superconductors — Cs(V0.93Nb0.07)3Sb5 and Cs(V0.86Ta0.14)3Sb5, using ultrahigh resolution and low temperature angle-resolved photoemission spectroscopy (ARPES). Remarkably, we find that such a gap structure is robust to the appearance or absence of charge order in the normal state, tuned by isovalent Nb/Ta substitutions of V. Moreover, the scaling ratio of gap versus superconducting transition temperature is close to the Bardeen-Cooper-Schrieffer (BCS) value, indicating a pairing in the weak-coupling regime. Our direct observation of the superconducting gap structure points to a persistent s-wave pairing in such kagome superconductors.
Use of food attractants to monitor and forecast Spodoptera frugiperda Smith seasonal abundance in southern China
Authors: He Wei , Wang Liying , Lv Chunyang , Ge Shishuai , Zhang Haowen , Jiang Shan , Chu Bo , Yang Xianming , Wyckhuys Kris A. G. , Wu Kongming 
Published: July 2022

Abstract
The fall armyworm (FAW, Spodoptera frugiperda Smith) is an important invasive pest of maize crops in Africa, Asia and the Middle East. To enable timely and effective pest management, accurate monitoring and forecasting of S. frugiperda populations is essential. In this study, we used food attractants to assess seasonal abundance of S. frugiperda in southern Yunnan (China) and determined adult age based upon ovarian development or testes size. During 2020–2021, the seasonal abundance of trapping S. frugiperda males with food attractants and sex pheromones were approximately the same at two field sites. Both trapping methods yielded S. frugiperda males of different ages – with an identical age structure for both trap types. The proportion of females trapped with food attractants was about 80%, which was significantly higher than that of males. S. frugiperda populations at two field sites were composed of immigrants that either originated in central Yunnan or in eastern Myanmar. Based upon field-level recordings of adult reproductive state, models reliably anticipated S. frugiperda fecundity dynamics. Next, drawing upon meteorological data and FAW adult age, migration trajectories were established for S. frugiperda immigrant populations. Overall, these novel (food-based) monitoring and forecasting tools can improve integrated pest management (IPM) of S. frugiperda in China and abroad.