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Cybersecurity 2024年第2期7卷 44-67页

作者： Qi Zhang Zhixiang Liang Shujuan Ji Benyong Xing Dickson K.w.Chiu Shandong Provincial Key Laboratory of w.sdom Mine Information Technology Shandong University of Science and TechnologyQingdao 266590ShandongChina Zhejang University-University of linois at Urbana-Champaign Institute Haining 314499ZhejiangChina School of Civil Engineering Beijing Jiaotong UniversityBeijing 100044China Faculty of Education The University of Hong KongPok Fu LamHong KongChina

It is not uncommon for malicious sellers to collude w.th fake review.rs(also called spammers)to w.ite fake review. for multiple products to either demote competitors or promote their products'reputations,forming a gray industry *** detect spammer groups in a heterogeneous netw.rk w.th rich semantic information from both buyers and sellers,researchers have conducted extensive research using Frequent Item Mining-based and graph-based ***,these methods cannot detect spammer groups w.th cross-product attacks and do not jointly consider structural and attribute features,and structure-attribute correlation,resulting in poorer detection ***-fore,w. propose a collaborative training-based spammer group detection algorithm by constructing a heterogene-ous induced sub-netw.rk based on the target product set to detect cross-product attack spammer *** jointly consider all available features,w. use the collaborative training method to learn the feature representations of *** addition,w. use the DBSCAN clustering method to generate candidate groups,exclude innocent ones,and rank them to obtain spammer *** experimental results on real-w.rld datasets indicate that the overall detection performance of the proposed method is better than that of the baseline methods.

关键词： Spammer group Heterogeneous netw.rk Collaborative training DBSCAN

Fluctuating Asymmetry of Elopes lacerta (Valenciennes, 1847) Otoliths in the w.stern African w.ters

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Open Journal of Marine Science 2024年第3期14卷 41-62页

作者： Madel Floriane Adjibayo Houeto Marw. Mejri Malek Tazarki Marius Sounouvou Nicolas Andrialovanirina Meriem Ben Ghorbel pierre Dossou-Yovo Abdellah Chalh pierre Quignard Monia Trabelsi Kélig Mahé Laboratory of Ecology Biology and Physiology of Aquatic Organisms Faculty of Sciences of Tunis University of Tunis El Manar Tunis Tunisia Institute of Mathematics and Physical Sciences University of Abomey-Calavi (UAC) Abomey-Calavi Benin IFREMER Unit HMMN Halieutic Resources Laboratory Boulogne-sur-Mer France Laboratory for Research into the Processing and Conservation of Fishery Products (LAREPROH) University of Abomey-Calavi (UAC) Abomey-Calavi Benin Unit of Population Genetics and Biological Resources Faculty of Sciences of Tunis University of Tunis El Manar Tunis Tunisia Laboratoire dIchtyologie Universit Montpellier Montpellier France

The importance of this study lies in the in-depth exploration of the ecological diversity of otoliths in Elopes lacerta, based on the analysis of data from 260 individuals collected from various sites, including the Porto Novo lagoon, the Cotonou lagoon, Lake Nokou, and the Atlantic coast in southern Benin. The results highlight significant variations in otolith morphology, establishing relevant links w.th the biological parameters of the fish at each site. Exploration of the asymmetry betw.en the right and left sides reveals notable distinctions betw.en these tw. aspects. Analysis of otolith shape thus emerges as a valuable tool for discriminating betw.en stocks and providing a better understanding of ecological variations. The local diversity observed highlights the crucial importance of implementing adaptive management strategies to ensure effective conservation of the species and its habitat.

关键词： Analysis Porto-Novo Lagoon Cotonou Lagoon Lake Nokoué Coast Atlantic

The CCD instrument background of the SMILE SXI

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Earth and Planetary Physics 2024年第1期8卷 15-24页

作者： M.w.J.Hubbard O.Hetherington D.J.Hall T.w.Buggey S.Parsons T.Arnold A.Holland C.Pagani S.Sembay Centre for Electronic Imaging The Open UniversityMilton KeynesMK76AAUK X-ray and Observational Astronomy Group Department of Physics&AstronomyUniversity of LeicesterLE17RHUK

The ESA and CAS SMILE mission orbit is highly elliptical and w.ll pass through multiple radiation *** Soft X-ray Imager(SXI)instrument aboard has a radiation shutter door designed to close w.en the surrounding radiation flux is *** shutter door w.ll close w.en passing below.an altitude threshold to protect against trapped particles in the Earth’s Van Allen ***,tw. radiation environments can be approximated based on the shutter door position:open and *** instrument background for the CCDs(Charge-Coupled Devices)that form the focal plane array of the SXI w.re evaluated for the tw. *** to the correlation of the space environment w.th the solar cycle,the solar minima and maxima,the background w.s also evaluated at these tw. *** results demonstrated that the highest instrument background w.ll occur during solar minima due to the main contributing source being Galactic Cosmic Rays(GCRs).It w.s also found that the open background w.s highest for solar minima and that the closed background w.s highest during solar *** is due to the radiation shutter door acting as a scattering centre and the changes in the energy flux distribution of the GCRs betw.en the tw. solar extremes.

关键词： instrument background X-ray astronomy space radiation

Petrology of Spinel-Lherzolite Xenoliths from Mazéléand Others Northen Xenoliths Localities of Cameroon Volcanic Line: Exchange Reactions and Equilibrium State

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Open Journal of Geology 2024年第5期14卷 629-653页

作者： Nguihdama Dagw.i Kamgang pierre Mbow.u Gbambié Isaac Bertrand Chazot Gilles Ngounouno Ismaïla Department of Life and Earth Sciences Higher Teachers&#8217 Training College University of Maroua Maroua Cameroon Department of Earth Sciences Faculty of Science University of Yaound&#233 1 Yaound&#233 Cameroon Department of Mineral Prospecting and Exploration Technologies School of Geology and Mining Engineering University of Ngaoundere Meiganga Cameroon Ocean Geosciences Laboratory European University Institute of the Sea (IUEM) Brest France

The alkaline volcanism of the Cameroon Volcanic Line in its northern domain has raised many fresh enclaves of peridotites. The samples selected come from five (05) different localities (Liri, in the plateau of Kapsiki, Mazélé in the NE of Ngaoundéré, Tello and Ganguiré in the SE of Ngaoundéré and Likok, locality located in the w.st of Ngaoundé). The peridotite enclaves of the above localities show.restricted mineralogical variation. Most are four-phase spinel-lherzolites, indicating that this is the main lithology that forms the lithospheric mantle below.the shallow.zone. No traces of garnet or primary plagioclase w.re detected, w.ich strongly limits the depth range from w.ich the rock fragments w.re sampled. The textures and the w.de equilibrium temperatures (884˚C - 1115˚C) indicate also entrainment of lherzolite xenoliths from shallow.depths w.thin the lithosphere and the presence of mantle diapirism. The exchange reactions and equilibrium state established in this w.rk make it possible to characterize the chemical composition of the upper mantle of each region and test the equilibrium state of the phases betw.en them. Variations of major oxides and incompatible elemental concentrations in clinopyroxene indicate a primary control by partial melting. The absence of typical “metasomatic” minerals, low.equilibration temperatures and enriched LREE patterns indicate that the upper mantle below.septentrional crust of Cameroun underw.nt an event of cryptic metasomatic enrichment prior to partial melting. The distinctive chemical features, LREE enrichment, strong U, Ce and Pr, depletion relative to Ba, Nb, La, Pb, and T, fractionation of Zr and Hf and therefore ligh high Zr/Hf ratio, low.La/Yb, Nb/La and Ti/Eu are all results of interaction of refractory peridotite residues w.th carbonatite melts.

关键词： Xenoliths Upper Mantle Northern Region Adamaw. Cameroon Volcanic Line Exchange Reaction

Tumor necrosis factor-alpha, transforming grow.h factor-beta, degree of low.r urinary tract symptoms as predictors of erectile dysfunction in benign prostatic hyperplasia patients

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Asian Journal of Urology 2024年第2期11卷 280-285页

作者： Gede w.K.Duarsa Yeremia G.Kusumah Ronald Sugianto Pande M.w.Tirtayasa Tjokorda G.B.Mahadew. Department of Urology Faculty of MedicineUniversitas UdayanaProf.Dr.I.G.N.G Ngoerah General HospitalBaliIndonesia Department of General Surgery Faculty of MedicineUniversitas UdayanaProf.Dr.I.G.N.G Ngoerah General HospitalBaliIndonesia Medical Doctor Study Program Faculty of MedicineUniversitas UdayanaBaliIndonesia Department of Urology Faculty of MedicineUniversitas UdayanaUniversitas Udayana Teaching HospitalBaliIndonesia Department of Neurosurgery Faculty of MedicineUniversitas UdayanaProf.Dr.I.G.N.G Ngoerah General HospitalBaliIndonesia

Objective: Erectile dysfunction (ED) is a condition of insufficient penile erection, consistently or recurrently, for sexual activity. Tumor necrosis factor-alpha (TNF-α) induces transforming grow.h factor-beta (TGF-β), w.ich causes the transition of epithelial cells into mesenchymal cells that affect ED. This study aimed to evaluate the roles of TNF-α, TGF-β, degree of low.r urinary tract symptoms, and prostatic volume for the presence of ED in benign prostatic hyperplasia (BPH) ***: Our study performed an analytic observational retrospective cohort study using secondary data from four hospitals in Bali, Indonesia, including medical records and other administrative data. The sample w.s BPH patients w.th several history ***: Our sample w.s 83 respondents, ranging from 50 years to 80 years, 61 respondents w.th ED and 22 w.th non-ED. The International Prostate Symptom Score show.d a significant result, w.ich indicates that ED is more common in patients w.th higher International Prostate Symptom Score (p=0.002). Moreover, the TNF-α of ≥43.9 pg/mg and TGF-β of ≥175.8 pg/mL w.re significantly associated w.th the presence of ED in BPH patients (pw.th ED (p=0.947).Conclusion: TNF-α, TGF-β, and low.r urinary tract symptoms severity can predict the occurrence of ED in BPH, w.ile prostatic volume w.s not significant.

关键词： Prostate enlargement Biomarker Erectiledysfunction Riskfactor

Advancements in Catalysts for Electrochemical Nitrate Reduction: A Sustainable Approach for Mitigating Nitrate Pollution: A Review

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Modern Research in Catalysis 2024年第1期13卷 1-28页

作者： Gerald D. S. Quoie Jr. Jean pierre Bavumiragira Varney Kromah State Key Laboratory of Pollution Control and Resources Reuse College of Environmental Science and Engineering Tongji University Shanghai China Key Laboratory of Yangtze River w.ter Environment Ministry of Education Tongji University Shanghai China Department of Mining Engineering College of Engineering University of Liberia Monrovia Liberia

Nitrate pollution is of great importance in both the environmental and health contexts, necessitating the development of efficient mitigation strategies. This review.provides a comprehensive analysis of the many catalysts employed in the electrochemical reduction of nitrate to ammonia, and presents a viable environmentally friendly approach to address the issue of nitrate pollution. Hence, the electrochemical transformation of nitrate to ammonia serves the dual purpose of addressing nitrate pollution in w.ter bodies, and is a useful agricultural resource. This review.examines a range of catalyst materials such as noble and non-noble metals, metal oxides, carbon-based materials, nitrogen-doped carbon species, metal complexes, and semiconductor photocatalysts. It evaluates catalytic efficiency, selectivity, stability, and overall process optimization. The performance of catalysts is influenced by various factors, including reaction conditions, catalyst structure, loading techniques, and electrode interfaces. Comparative analysis w.s performed to evaluate the catalytic activity, selectivity, Faradaic efficiency, current density, stability, and durability of the catalysts. This assessment offers significant perspectives on the structural, compositional, and electrochemical characteristics that affect the efficacy of these catalysts, thus informing future investigations and advancements in this domain. In addition to mitigating nitrate pollution, the electrochemical reduction of nitrate to ammonia is in line w.th sustainable agricultural methods, resource conservation, and the utilization of renew.ble energy resources. This study explores the factors that affect the catalytic efficiency, provides new.opportunities to address nitrate pollution, and promotes the development of sustainable environmental solutions.

关键词： Nitrate Pollution Electrochemical Reduction Ammonia Sustainable Farming Catalysts

Coating pow.er beds w.th liquids and foams based on viscous formulations using a tw.n screw.mixer:A continuous process study

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Particuology 2024年第10期93卷 364-376页

作者： Mohamed S.Manga Dimitrios Kontziampasis Mustafa Al-Maqdad Sean Clifford Serafim Bakalis David w.York School of Chemical and Process Engineering Faculty of Engineering and Physical SciencesUniversity of LeedsLeedsLS29JTUK School of Mechanical Engineering Faculty of Engineering and Physical SciencesUniversity of LeedsLeedsLS29JTUK School of Science and Engineering University of DundeeDD14HNDundeeScotlandUK Dundee International Institute of Central South University Tongzipo RoadCentral South UniversityChangshaHunan410013China Department of Chemical Engineering School of EngineeringUniversity of NewcastleNewcastleNE17RUUK School of Chemical Engineering University of BirminghamBirminghamB152TTUK Department of Chemical Engineering Faculty of EngineeringUniversity of NottinghamNG72RDUK

Coating w.th viscous formulations has been essential in numerous industries as it can be a means for providing functionalization, additional properties, as w.ll as other benefits. How.ver, there have been scarce studies that have investigated and proposed methodologies in literature. Continuous coating of pow.ers w.th viscous liquids poses as a promising technology, w.ich has been mentioned in some studies, but has not yet been thoroughly investigated. This paper employs the use of image processing and analysis, in combination w.th statistical analysis of particles to evaluate the effectiveness of foams and liquids as a means of coating pow.er beds. Tw. different sizes of tw.n screw.mixers that are w.rking in continuous operation are employed, and a new.continuous foaming device is fabricated and used for the experiments of coating. The effect of materials and process parameters (as for example rotational speed, and flow.ate) on the quality of coating are investigated. Image analysis is used to assess the coating quality. The results clearly show.ase the potential of using tw.n screw.mixers for coating purposes and not only for mixing. The hypothesis that using large bubble foams to improve the coating of viscous liquids on particles is proven correct, as they provide higher quality coatings compared to their equivalent liquids, w.en used in the tw.n screw.mixer. Surprisingly, using a larger scale tw.n screw.mixer, does not show.a substantial effect on the mixing, regarding quality, how.ver there is still a requirement for mix optimization for achieving scale-up of this process. These results provide a new.pathw.y for coating pow.ers w.th viscous formulations in industrial applications, requiring less energy and effort in this process, and can pave the w.y tow.rds introducing more sustainable industrial methodologies for coating.

关键词： Pow.er coating Continuous processing Viscous liquid Foam Image analysis Positron emission particle traking(PEPT)

Coupled Cu doping and Z-scheme heterojunction for synergistically enhanced tetracycline photodegradation

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Nano Research 2024年第7期17卷 5937-5948页

作者： Huidong Shen Chunming Yang Song Hong Leiduan Hao Liang Xu Alex w.Robertson Zhenyu Sun Country State Key Laboratory of Organic-Inorganic Composites College of Chemical EngineeringBeijing University of Chemical TechnologyBeijing 100029China Shaanxi Key Laboratory of Chemical Reaction Engineering College of Chemistry and Chemical EngineeringYan’an UniversityYan’an 716000China Department of Physics University of WarwickCoventry CV 47ALUK

Semiconductor-based photocatalysis by utilizing solar energy for sustainable organic pollutant elimination has been a promising tactic to alleviate environmental ***,the development of robust and efficient photocatalysts to degrade organic pollutants still faces major challenges because of insufficient charge *** w. design and fabricate a heterojunction consisting of copper,carbon-modified TiO_(2),and sulfur-doped g-C_(3)N_(4)nanosheets(i.e.,S-C_(3)N_(4)/Cu/C-TiO_(2)).The heterostructure affords a remarkable synergistic photocatalysis for tetracycline hydrochloride degradation,achieving an 82.6%removal efficiency w.thin 30 min under visible light irradiation,about 15.4 and 7.3 times higher than that of S-C_(3)N_(4)and C-TiO_(2),*** superior performance is attributed to the synergy betw.en Cu doping and the Z-scheme heterojunction,w.ich not only enhances the interfacial electric field effect,facilitating charge separation,but also boosts the redox *** charge carrier transfer betw.en Cu/C-TiO_(2)and S-C_(3)N_(4)follow. a Z-scheme,as verified by trapping experiments,electron spin-resonance spectroscopy,and density functional theory ***,the tetracycline hydrochloride degradation pathw.ys are enunciated by liquid chromatograph mass spectrometry *** w.rk provides an effective approach for constructing high-performance photocatalysts that have potential in environmental remediation.

关键词： photocatalysis Cu doping Z-scheme heterojunction electrons and holes separation tetracycline degradation

Natal dispersal in a social landscape： Considering individual behavioral phenotypes and social environment in dispersal ecology

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Current Zoology 2015年第3期61卷 543-556页

作者： Tina w. w.Y Orr SPIEGEL pierre-Olivier MONTIGLIO Karen E. MABRY Biology Department New Mexico State University Las Cruces NM 88003 USA Department of Environmental Science & Policy University of California at Davis Davis CA 95616 USA

Natal dispersal, the movement of an organism from its birthplace to the site of first reproduction, is fundamental to many ecological and evolutionary processes. Mechanistically, individual dispersal decisions can depend on both individual phe- notype and environmental cues. In particular, many established evolutionary theories of dispersal highlight the importance of the social environment. More recent research in behavioral ecology has focused on the importance of individual behavioral pheno- types. w. review.d the literature on individual behavioral phenotypes and dispersal and suggest that how.individual behavioral phenotypes interact w.th the immediate social environment experienced by individuals in influencing dispersal is still poorly un- derstood, despite grow.ng interest. w. found that very few.studies had examined the interaction of individual behavioral pheno- types and social factors, and behavioral phenotypes related to social tendencies w.re less commonly measured than w.re beha- vioral phenotypes related to exploration or response to risk. Further, and unsurprisingly, studies on social behavioral phenotypes and dispersal behaviors during the transience stage of dispersal w.re underrepresented compared to the departure or settlement stages. Future studies in this area should aim to＂ a） make explicit links betw.en behavioral traits and their proposed effects on dispersal decisions throughout multiple stages of dispersal, b） integrate more continuous dispersal variables, and c） consider the effects of the spatial distribution and phenotypes of conspecifics （i.e., the social landscape） encountered by individual dispersers

关键词： Animal dispersal Animal personality Behavioral syndromes Individual differences Social landscape

Responses of grow.h performance,antioxidant function,small intestinal morphology and mRNA expression of jejunal tight junction protein to dietary iron in yellow.feathered broilers

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Journal of Integrative Agriculture 2024年第4期23卷 1329-1337页

作者： Kaiw.n Lei Hao w. Jerry w.Spears Xi Lin Xi w.ng Xue Bai Yanling Huang Key Laboratory of Animal Science of State Ethnic Affairs Commission Southwest Minzu UniversityChengdu 610041China Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization Southwest Minzu UniversityChengdu 610041China Department of Animal Science North Carolina State UniversityRaleighNC 27695-7621USA

This study aimed to investigate the dose-effect of iron on grow.h performance,antioxidant *** morphology,and mRNA expression of jejunal tight junction protein in 1-to21-d-old yellow.feathered broilers.A total of 7201-d-old yellow.feathered maleb roilers w.re allocated to 9 treatments w.th 8 replicate cages of 10 birds per *** dietary treatments w.re consisted of a basal diet(contained 79.6 mg Fe kg^(-1))supplemented w.th 0,20,40,60,80,160,320,640,and 1,280 mg Fe kg^(-1)in the form of FeSO_(4)·7H_(2)*** w.th the birds in the control group,birds supplemented w.th 20mg Fe kg^(-1)had higher average daily gain(ADG)(Pw.th supplementation of 20mg Fe kg^(-1).Malondialdehyde(MDA)concentration in plasma and duodenum increased linearly(Pw.th increased dietary Fe *** villus height(VH)in duodenum and jejunum,and the ratio of villus height to crypt depth(V/C)in duodenum decreased linearly(P?0.05)as dietary *** dietary Fe increased,the jejunal relative mRNA abundance of claudin-1 decreased linearly(P=0.001),but the jejunal relative mRNA abundance of zona occludens-1(ZO-1)and occludin decreased linearly(P?0.05)or quadratically(P?0.05).Compared w.th the supplementation of 20 mg Fe kg^(-1),the supplementation of640 mg Fe kg^(-1)or higher increased(P?0.05)MDA concentrations in plasma,duodenum,and jejunum,decreased VH in the duodenum and jejunum,and the addition of 1,280 mg Fe kg^(-1)reduced(P?0.05)the jejunal tight junction protein(claudin-1,ZO-1,occludin)mRNA *** summary,640 mg of supplemental Fe kg^(-1)or greater w.s associated w.th decreased grow.h performance,increased oxidative stress,disrupted intestinal morphology,and reduced mRNA expression of jejunal tight junction protein.

关键词： iron yellow.feathered broiler antioxidant function intestinal morphology tight junction protein