bluuebunny/crossref_metadata_2025_split huggingface dataset:
Population structure of wild soybean (Glycine soja) based on SLAF-seq have implications for its conservation
Authors: Meng Jing , Yang Guoqian , Li Xuejiao , Zhao Yan , He Shuilian 
Published: November 2023

Background
Glycine soja Sieb. & Zucc. is the wild ancestor from which the important crop plant soybean was bred. G. soja provides important germplasm resources for the breeding and improvement of cultivated soybean crops, however the species is threatened by habitat loss and fragmentation, and is experiencing population declines across its natural range. Understanding the patterns of genetic diversity in G. soja populations can help to inform conservation practices.

Methods
In this study, we analyzed the genetic diversity and differentiation of G. soja at different sites and investigated the gene flow within the species. We obtained 147 G. soja accessions collected from 16 locations across the natural range of the species from China, Korea and Japan. Samples were analyzed using SLAF-seq (Specific-Locus Amplified Fragment Sequencing).

Results
We obtained a total of 56,489 highly consistent SNPs. Our results suggested that G. soja harbors relatively high diversity and that populations of this species are highly differentiated. The populations harboring high genetic diversity, especially KR, should be considered first when devising conservation plans for the protection of G. soja, and in situ protection should be adopted in KR. G. soja populations from the Yangtze River, the Korean peninsula and northeastern China have a close relationship, although these areas are geographically disconnected. Other populations from north China clustered together. Analysis of gene flow suggested that historical migrations of G. soja may have occurred from the south northwards across the East-Asia land-bridge, but not across north China. All G. soja populations could be divided into one of two lineages, and these two lineages should be treated separately when formulating protection policies.
Research on the Implementation of Space Concept Literacy in the Junior High School Mathematics Classroom Teaching in China
Authors: Li Xiaoshuo , Yang Zezhong 
Published: November 2023

Current junior high school mathematics classrooms are increasingly focusing on the implementation of mathematics core literacy in China. Space concept literacy is one of the core literacy, so its implementation is attracting much attention. Based on clarifying the connotation and requirements of space concept literacy in the Mathematics Curriculum Standards for Compulsory Education (2022 Edition), and analyzing the highlights and deficiencies of junior high school mathematics classroom teaching, this paper puts forward four strategies for the implementation of space concept literacy in the classrooms: 1. designing life-related geometric inquiry activities with clear programs; 2. making reasonable use of objects and models; 3. adding measurement, graphing, manipulation into the teaching process; 4. flexibly using mathematics teaching software and emerging technologies to assist teaching. It is hoped that these strategies can provide ideas for the better development of junior high school mathematics teaching.
Abdominal Tuberculosis Simulating Advanced Ovarian Cancer: A Diagnostic Dilemma
Authors: Alegbeleye Justina Omoikhefe , Amadi Christian Emeka 
Published: November 2023

Background: The rate of preoperative misdiagnosis between abdominal tuberculosis and ovarian cancer is high because the symptoms are non-speciﬁc, clinical findings can be misleading, and biomarkers commonly linked with other diseases also make appropriate diagnosis difﬁcult.
Objective: To evaluate the clinical and diagnostic features in women with abdominal tuberculosis that simulated advanced ovarian malignancy.
Materials and Methods: A retrospective review of 11 cases of abdominal tuberculosis managed at the Gynaecological Oncology unit of the University of Port Harcourt Teaching Hospital with suspected advanced ovarian cancer between January 1, 2016, and December 31, 2021. Clinical characteristics, laboratory results, including serum tumour markers, radiological findings, and ascitic fluid evaluation were extracted from theatre records and case notes and entered into a proforma. SPSS 25 was used for data analysis, and the results are displayed as frequency tables.
Results: More than half 6 (55%) of the cases of abdominal TB were found in patients aged 20 to 40 years, with many patients 8 (72.7%) being nulliparous. Abdominal distension, Abdominal pain, and weight loss were the most common presenting symptoms. All patients had clinical evidence of ascites, along with thickening or ill-deﬁned nodularities in the pouch of Douglas and/or in the adnexal areas on pelvic examination. Serum CA-125 levels were elevated in all 11 patients (100%), with a mean value of 327.8 U/mL. Pleural effusion and increased inﬁltration were seen in 5 (45.5%) patients. Ultrasound scan and computed tomography studies showed ascites in all 11 (100%) patients. Debritic ascites with peritoneal thickening, mesenteric and omental stranding were observed in all 11 patients (100%), and all 11 (100%) patients had laparotomy. All patients received standard antitubercular therapy.
Conclusion: In relatively young females with nonspecific symptoms, a diagnosis of abdominal TB should be considered. Ultrasound-guided biopsy, laparoscopy, or a mini-laparotomy may be the most direct and least-invasive approach for a diagnosis, avoiding unnecessary extended surgeries in these patients.
Factors Influencing Cyberloafing Behaviour in Students
Authors: Marumpe Dody Pratama , Rosnani Titik , Heriyadi  , Fahruna Yulyanti , Jaya Arman 
Published: November 2023

Aims: This study aims to test and analyze influence of conscientiousness and self-control to cyberloafing in college students.
Study Design: This study used quantitative method. Data collection techniques were done using spread questionnaire in likert scale. Testing was done by using Warp PLS version 6.0 with Structural Equation Model (SEM).
Place and Duration of Study: The study was taken place at Tanjungpura University, Pontianak, West Kalimantan. This study conducted between July until October 2023.
Methodology: This study involved 100 respondents. The sampling technique in this research is Purposive Sampling. This method used criteria chosen by the researcher in selecting the sample. The samples taken in this research were students from Faculty of Economic and Bussiness, Tanjungpura University. The criteria set by researchers are: students who spend at least 4 hours on campus.
Results: Based on the results of the first hypothesis test, it proved that conscientiousness has a significant influence on students' cyberloafing behaviour. This was indicated by the p-value = <0.01, which means it was smaller than 0.05. In this case, it shown that the lower conscientiousness will have an impact on increasing student cyberloafing. In this case, it means that conscientiousness has a significant effect on the cyberloafing behaviour.
Meanwhile, Based on the results of the second hypothesis test, it proved that self-control has a very significant effect on students' cyberloafing behaviour. This was proven by the p-value = <0.01 which was smaller than 0.05. This shows that the lower self-control will have an impact on increasing student cyberloafing. In this case, it means that self-control has a significant effect on the cyberloafing behaviour.
Conclusion: Based on the results of data analysis carried out by researchers, it can be concluded as follows: 1) conscientiousness has a significant effect on the cyberloafing behaviour of students at the Faculty of Economics and Business, Tanjungpura University, Pontianak. 2) self-control has a significant effect on the cyberloafing behaviour of students at the Faculty of Economics and Business, Tanjungpura University, Pontianak.
Effect of 1-methylcyclopropene on jackfruit with marketing simulation at 8°C
Authors: Morelos-Flores David Antonio , Chacón-López Martina Alejandra , Montalvo-González Efigenia , García-Magaña María de Lourdes , Nolasco-González Yolanda , Hernández-Fuentes Luis Martín , González-Hernández Héctor 
Published: November 2023

Jackfruit is a tropical fruit and competes with traditional crops such as mango, banana, and pineapple with regard to the quantity exported from the state of Nayarit, Mexico. Because jackfruit is a climacteric fruit with a high respiration rate and ethylene production, it has a limited market due to its short shelf life. The effect of the application of 1-methylcyclopropene (1-MCP) post-harvest to extend the shelf life of jackfruit was studied. Physiologically mature fruits were used and 1-MCP was applied at concentrations of 300, 600, and 1000 nL·L−1; control fruit without treatment was also evaluated. The fruits were stored for 5 days at 8°C and then were stored at 25°C to simulate the commercialization of the fruit. An absolute control group stored permanently at 25°C was used. The following analyses were carried out: physiologic and physicochemical factors, antioxidant capacity, vitamin C, total carotenoids, total soluble phenols, and sensory evaluation of the fruits when ripe. The climacteric peak for the absolute controls and fruit treated with 1-MCP (300, 600, and 1000 nL·L−1) occurred on days 3, 14, 17, and 17 respectively, prolonging the climacteric peak by an average of 13 days. The maximum rates of ethylene production were reported on days 3, 15, 17, and 17 in the same order, prolonging this by an average of 13 days. The treatment with 1-MCP (600 nL·L−1) extended the shelf life of jackfruit by 9 days compared with the absolute control, preserving the physicochemical, phytochemical, and sensory characteristics for up to 17 days of storage, confirming that the application of 1-MCP post-harvest is effective, providing the opportunity to increase the export destinations of Mexican jackfruit.
Keywords: Jackfruit; 1-Methylcyclopropene; Marketing conditions; Physiologic and physicochemical parameters; Total soluble phenols; Antioxidant capacity
The relationship between mistrust and aggression from childhood to adulthood
Authors: Rotenberg Ken J. , Fonseca António Castro 
Published: November 2023

AbstractThe study examined the relationship between mistrust and aggression from childhood to adulthood. The participants resided in Portugal and were tested during middle childhood (Mage = 7.5, SD = 0.81 years, n = 445, 240 male), preadolescence (Mage = 11.92, SD = 0.96 years, n = 431, 200 male), mid‐adolescence (Mage = 14.70, SD = 0.91 years, n = 326, 201 male), late adolescence (Mage = 18.14, SD = 1.19 years, n = 410, 216 male), and adulthood (Mage = 26.56, SD = 1.13, years, n = 417, 197 male). Mothers reported the participants' mistrust during childhood and preadolescence on items from the Child Behavior Checklist. Aggression was assessed by standardized self‐report measures at each age period. It was found that mistrust was associated with aggression during preadolescence and predicted changes in aggression to mid‐adolescence and adulthood. The findings supported the conclusion that mistrust during preadolescence predisposes individuals to show aggression later in the life course.
Water‐Mediated Selectivity Control of CH3OH versus CO/CH4in CO2Photoreduction on Single‐Atom Implanted Nanotube Arrays
Authors: Huang Juan‐Ru , Shi Wen‐Xiong , Xu Shen‐Yue , Luo Hao , Zhang Jiangwei , Lu Tong‐Bu , Zhang Zhi‐Ming 
Published: November 2023

AbstractControllable methanol production in artificial photosynthesis is highly desirable due to its high energy density and ease of storage. Herein, single atom Fe is implanted into TiO2/SrTiO3(TSr) nanotube arrays by two‐step anodization and Sr‐induced crystallization. The resulting Fe‐TSr with both single Fe reduction centers and dominant oxidation facets (001) contributes to efficient CO2photoreduction and water oxidation for controlled production of CH3OH and CO/CH4. The methanol yield can reach to 154.20 µmol gcat−1h−1with 98.90% selectivity by immersing all the catalyst in pure water, and the yield of CO/CH4is 147.48 µmol gcat−1h−1with >99.99% selectivity when the catalyst completely outside water. This CH3OH yield is 50 and 3 times higher than that of TiO2and TSr and stands among all the state‐of‐the‐art catalysts. The facile gas–solid and gas–liquid–solid phase switch can selectively control CH3OH production from ≈0% (above H2O) to 98.90% (in H2O) via slowly immersing the catalyst into water, where abundant •OH and H2O around Fe sites play important role in selective CH3OH production. This work highlights a new insight for water‐mediated CO2photoreduction to controllably produce CH3OH.
Switchable Chemical‐Bond Reorganization for the Stable Charge Trapping in Amorphous Silicon Nitride
Authors: Choi Woon Ih , Son Won‐Joon , Dronskowski Richard , Oh Youngtek , Yang Seung‐Yeul , Kwon Uihui , Kim Dae Sin 
Published: November 2023

AbstractDespite the widespread use of charge‐trap flash (CTF) memory, the atomistic mechanism behind the exceptionally stable charge storage at the localized trap sites is still controversial. Herein, by combining first‐principles calculations and orbital interaction analysis, a charge‐dependent switchable chemical‐bond reorganization is elucidated as the underpinning chemistry in the working mechanism of CTF. Especially, positively charged fourfold‐coordinated nitrogen (dubbed N+center), unappreciated until now, is the decisive component of the entire process; once an electron occupies this site, the N+center disappears by breaking one N─Si bond, simultaneously forming a new Si─Si bond with a nearby Si atom which, in turn, creates fivefold coordinated Si. As a result, the electron is stored in a multi‐center orbital belonging to multiple atoms including the newly formed Si─Si bond. It is also observed that hole trapping accompanies the creation of an N+center by forming a new N─Si bond, which represents the reverse process. To further support and validate this model by means of core‐level calculations, it is also shown that an N+center's 1score level is 1.0–2.5 eV deeper in energy than those of the threefold coordinated N atoms, in harmony with experimental X‐ray photoelectron spectroscopy data.
Rhodium‐Catalyzed Enantioselective Formal [4+1] Cyclization of Benzyl Alcohols and Benzaldimines: Facile Access to Silicon‐Stereogenic Heterocycles
Authors: Shen Bingxue , Pan Deng , Xie Wanying , Li Xiao‐Xi , Yu Songjie , Huang Genping , Li Xingwei 
Published: November 2023

AbstractThe carbon‐to‐silicon switch in formation of bioactive sila‐heterocycles with a silicon‐stereogenic center has garnered significant interest in drug discovery. However, metal‐catalyzed synthesis of such scaffolds is still in its infancy. Herein, a rhodium‐catalyzed enantioselective formal [4+1] cyclization of benzyl alcohols and benzaldimines has been realized by enantioselective difunctionalization of a secondary silane reagent, affording chiral‐at‐silicon cyclic silyl ethers and sila‐isoindolines, respectively. Mechanistic studies reveal a dual role of the rhodium‐hydride catalyst. The coupling system proceeds via rhodium‐catalyzed enantio‐determining dehydrogenative OH silylation of the benzyl alcohol or hydrosilylation of the imine to give an enantioenriched silyl ether or silazane intermediate, respectively. The same rhodium catalyst also enables subsequent intramolecular cyclative C−H silylation directed by the pendent Si‐H group. Experimental and DFT studies have been conducted to explore the mechanism of the OH bond silylation of benzyl alcohol, where the Si‐O reductive elimination from a Rh(III) hydride intermediate has been established as the enantiodetermining step.
Visible Light Induced Copper‐Catalyzed Enantioselective Deaminative Arylation of Amino Acid Derivatives Assisted by Phenol
Authors: Jia Yue , Zhang Zhihan , Yu Guo‐Ming , Jiang Xuan , Lu Liang‐Qiu , Xiao Wen‐Jing 
Published: November 2023

AbstractThe exploration of value‐added conversions of naturally abundant amino acids has received considerable attention from the synthetic community. Compared with the well‐established asymmetric decarboxylative transformation, the asymmetric deaminative transformation of amino acids still remains a formidable challenge, mainly due to the lack of effective strategies for the C−N bond activation and the potential incompatibility with chiral catalysts. Here, we disclose a photoinduced Cu‐catalyzed asymmetric deaminative coupling reaction of amino acids with arylboronic acids. This new protocol provides a series of significant chiral phenylacetamides in generally good yields and excellent stereoselectivity under mild and green conditions (42–85 % yields, up to 97 % ee). Experimental investigations and theoretical calculations were performed to reveal the crucial role of additional phenols in improving catalytic efficiency and enantiocontrol.
Tunable Chirality of Self‐Assembled Dipeptides Mediated by Bipyridine Derivative
Authors: Wu Aoli , Guo Yongxian , Li Meiqi , Li Qin , Zang Hengchang , Li Junbai 
Published: November 2023

AbstractSupramolecular peptide assemblies have been widely used for the development of biomedical, catalytical, and optical materials with chiral nanostructures in view of the intrinsic chirality of peptides. However, the assembly pathway and chiral transformation behavior of various peptides remain largely elusive especially for the transient assemblies under out‐of‐equilibrium conditions. Herein, the N‐fluorenylmethoxycarbonyl‐protected phenylalanine‐tyrosine dipeptide (Fmoc‐FY) was used as a peptide assembly platform, which showed that the assembly proceeds multistep evolution. The original spheres caused by liquid‐liquid phase separation (LLPS) can nucleate and elongate into the formation of right‐handed helices which were metastable and easily converted into microribbons. Interestingly, a bipyridine derivative can be introduced to effectively control the assembly pathway and induce the formation of thermodynamically stable right‐handed or left‐handed helices at different stoichiometric ratios. In addition, the chiral assembly can also be regulated by ultrasound or enzyme catalysis. This minimalistic system not only broadens the nucleation‐elongation mechanisms of protein aggregates but also promotes the controllable design and development of chiral biomaterials.
Distinguishing Protein Chemical Topologies Using Supercharging Ion Mobility Spectrometry‐Mass Spectrometry
Authors: Lee Jiyeon , Im Dahye , Liu Yajie , Fang Jing , Tian Xibao , Kim Minsu , Zhang Wen‐Bin , Seo Jongcheol 
Published: November 2023

AbstractA technique combining ion mobility spectrometry‐mass spectrometry (IMS‐MS) and supercharging electrospray ionization (ESI) has been demonstrated to differentiate protein chemical topology effectively. Incorporating as many charges as possible into proteins via supercharging ESI allows the protein chains to be largely unfolded and stretched, revealing their hidden chemical topology. Different chemical topologies result in differing geometrical sizes of the unfolded proteins due to constraints in torsional rotations in cyclic domains. By introducing new topological indices, such as the chain‐length‐normalized collision cross‐section (CCS) and the maximum charge state (zM) in the extensively unfolded state, we were able to successfully differentiate various protein chemical topologies, including linear chains, ring‐containing topologies (lasso, tadpole, multicyclics, etc.), and mechanically interlocked rings, like catenanes.
Enhancing oil repellency of electron beam‐grafted polyethylene terephthalate fabric with 2‐(perfluorohexyl) ethyl acrylate monomer via pre‐irradiation
Authors: Shohbuke Eriko , Kobayashi Yasuyuki , Okubayashi Satoko 
Published: November 2023

AbstractElectron beam (EB)‐induced graft polymerization is advantageous for the surface modification of fabrics. We investigated the effect of monomer concentration and the addition of alkyl groups on the oil repellency of polyethylene terephthalate (PET) fabrics treated with monomers containing fluoroalkyl groups through EB‐induced graft polymerization via pre‐irradiation. We use 2‐(perfluorohexyl) ethyl acrylate (FEA) and stearyl acrylate (SA(C18)) with long alkyl chains as vinyl monomers to induce reaction with radicals generated from EB irradiation. The weight gain and surface morphology of the PET fabrics change with the FEA monomer concentration. The uniformity of the EB‐grafted PET fabric surface is determined at low monomer solution concentrations. Results of X‐ray photoelectron spectroscopy analysis show that adding 0.1 mol/L of FEA monomer to the EB‐grafted PET fabric yields the highest dodecane contact angle of 93.4° and a surface fluorine concentration of 39.8%. The addition of SA(C18) monomer to the FEA monomer decreases the dodecane contact angle by 77.5° and yields a surface fluorine concentration of 19.1%. EB graft polymerization via pre‐irradiation results in a uniformly treated surface, and stable oil repellency is achieved when using solely the FEA monomer at a lower monomer concentration than that used in a similar irradiation method reportedly previously.
Issues and challenges facing aqueous sodium‐ion batteries toward practical applications
Authors: Rao Ruohui , Chen Long , Su Jing , Cai Shiteng , Wang Sheng , Chen Zhongxue 
Published: November 2023

AbstractAqueous sodium‐ion batteries (ASIBs) have attracted widespread attention in the energy storage and conversion fields due to their benefits in high safety, low cost, and environmental friendliness. However, compared with the sodium‐ion batteries born in the same period, the commercialization of ASIB has been significantly delayed. Although great efforts have been made on the electrode/electrode design and interface regulation, the performance of ASIBs is far from the practical requirements. This review first comprehensively compared ASIBs and lead acid batteries in terms of battery structure, performance, sustainable manufacturing, circular economy, and environmental impact. Then, the issues and challenges relevant to the unfavorable behaviors of ASIBs are discussed in detail, such as low energy density caused by narrow electrochemical stability window of water, limited choice of electrode materials, unstable electrode/electrolyte interface, immature battery manufacturing technology, and so forth. We hope that this review provides pertinent insight into the research focus and rational design of applicable ASIBs.