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Beta-Hc. Levels and Ovarian Ultrasonography Results among Non-Pregnant Women of Reproduc.ive Age in Port Harc.urt, Nigeria: A c.oss-Sec.ional Study

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Journal of Biosc.enc.s and Medic.nes 2024年第5期12卷 233-241页

作者： c.line c. Agonsi Franc.s Anac.etus Joel Aluko c.inemerem Eleke Joy c. Samuel Afric.n c.ntre of Public.Health and Toxic.logic.l Researc. (Ac.-PUTOR) University of Port Harcourt Choba Nigeria Department of Nursing Sc.enc. University of Port Harcourt Choba Nigeria

Bac.ground: c.rtain ovarian c.nc.rs that were previously c.mmon in postmenopausal women are now inc.easingly observed in women of reproduc.ive age. The researc. on using β-Hc. as a diagnostic.biomarker for ovarian c.nc.r in women of reproduc.ive age is ongoing. Aim: This study assessed the level of serum β-Hc. in non-pregnant women of reproduc.ive age and determined its potential assoc.ation with suspic.ous ovarian ultrasonography results. Methods: The study was c.nduc.ed in Port Harc.urt, Nigeria. This study adopted a c.oss-sec.ional design on a quota sample of 224 c.se notes of women aged 18 - 40 years obtained from eight diagnostic.c.ntres. A data extrac.ion form was used for data c.llec.ion. Data analysis employed desc.iptive statistic., c.i-square, Fisher’s exac. test, and Odds Ratio at 95% c.nfidenc. and 5% signific.nc. levels. Results: About 5.8% of the partic.pants exhibited detec.able levels of serum β-Hc. above 5 IU/L (World Health Organization referenc.) at a mean c.nc.ntration of 5.87 (±1.75) IU/L. About 4.0% of the partic.pants had suspic.ous ovarian lesions identified through ultrasonography. Partic.pants with elevated serum β-Hc. levels above the WHO referenc. were 59 times more likely to have suspic.ous ovarian lesions (Odds ratio: 59.4, 95%c.: 12.3 - 287.8, p β-Hc. level and age (p = 0.041) as well as parity (p c.nc.usion: Serum β-Hc. levels above the WHO referenc. in non-pregnant women were assoc.ated with suspic.ous ovarian lesions. More rigorous primary researc., systematic.reviews, and meta-analyses are needed to c.nfirm the findings of this study.

关键词： Biomarkers Ovarian c.nc.r Pregnanc. Ultrasonography

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Non-Linear Matrix c.mpletion

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Journal of Data Analysis and Information Proc.ssing 2024年第1期12卷 115-137页

作者： Fengrui Zhang Randy c. Paffenroth David Worth Worc.ster Polytec.nic.Institute Worcester MA USA

c.rrent methods for predic.ing missing values in datasets often rely on simplistic.approac.es suc. as taking median value of attributes, limiting their applic.bility. Real-world observations c.n be diverse, taking stoc. pric. as example, ranging from pric.s post-IPO to values before a c.mpany’s c.llapse, or instanc.s where c.rtain data points are missing due to stoc. suspension. In this paper, we propose a novel approac. using Nonlinear Matrix c.mpletion (NIMc. and Deep Matrix c.mpletion (DIMc. to predic. assoc.ations, and c.nduc. experiment on financ.al data between dates and stoc.s. Our method leverages various types of stoc. observations to c.pture latent fac.ors explaining the observed date-stoc. assoc.ations. Notably, our approac. is nonlinear, making it suitable for datasets with nonlinear struc.ures, suc. as the Russell 3000. Unlike traditional methods that may suffer from information loss, NIMc.and DIMc.maintain nearly c.mplete information, espec.ally in high-dimensional parameters. We c.mpared our approac. with state-of-the-art linear methods, inc.uding Induc.ive Matrix c.mpletion, Nonlinear Induc.ive Matrix c.mpletion, and Deep Induc.ive Matrix c.mpletion. Our findings show that the nonlinear matrix c.mpletion method is partic.larly effec.ive for handling nonlinear struc.ured data, as exemplified by the Russell 3000. Additionally, we validate the information loss of the three methods ac.oss different dimensionalities.

关键词： Matrix c.mpletion Data Pipeline Mac.ine Learning

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The Performanc. of Small Diameter Aluminum Light Support Struc.ures c.ntaining Handholes under c.c.ic.Fatigue

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Open Journal of c.vil Engineering 2024年第2期14卷 196-213页

作者： c.meron R. Rusnak Aya Al-Hamami c.aig c. Menzemer Department of Sc.enc. Technology and Mathematics Lincoln University of Missouri Jefferson Missouri USA Auburn Sc.enc. and Engineering c.nter Department of Civil Engineering The University of Akron Akron Ohio USA

Aluminum light poles play a pivotal role in modern infrastruc.ure, ensuring proper illumination along highways and in populated areas during nighttime. These poles typic.lly feature handholes near their bases, providing ac.ess to elec.ric.l wiring for installation and maintenanc.. While essential for func.ionality, these handholes introduc. a vulnerability to the overall struc.ure, making them a potential failure point. Although prior researc. and analyses on aluminum light poles have been c.nduc.ed, the behavior of smaller diameter poles c.ntaining handholes remains unexplored. Rec.gnizing this need, a researc. team at the University of Akron undertook a c.mprehensive experimental program involving aluminum light poles with handholes c.ntaining welded inserts in order to gain a better understanding of their fatigue life, mec.anic.l behavior, and failure mec.anisms. The researc. involved testing seven large-sc.le aluminum light poles eac. 8-inc. diameter, with two separate handholes. These handholes inc.uded a reinforc.ment that was welded to the poles. Finite Element Analysis (FEA), statistic.l analysis, and c.mparison analysis with their large c.unterparts (10-inc. diameter) were used to augment the experimental results. The results revealed two distinc. failure modes: progressive c.ac. propagation leading to ultimate failure, and rupture of the pole near the weld initiation/termination site around the handhole. The c.mparison analysis indic.ted that the 8-inc. diameter spec.mens exhibited an average fatigue life exc.eding that of their 10-inc. c.unterparts by an average of 30.7%. The experimental results were plotted alongside the fatigue detail c.assific.tions outlined in the Aluminum Design Manual (ADM), enhanc.ng understanding of the fatigue detail c.tegory of the respec.ive poles/handholes.

关键词： Light Pole Handhole c.c.ic.Fatigue Fatigue Analysis Finite Element Analysis Statistic.l Analysis

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城市绿色空间作为变革的力量:全球智慧与中国视角

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中国园林 2024年第1期40卷 6-13页

作者： [美]威廉·c.苏利文姜斌美国伊利诺伊香槟分校风景园林系香港大学建筑学院中国香港999077 香港大学建筑学院城市环境与人类健康实验室中国香港999077

探讨了城市绿色空间在提升人类健康和福祉方面的关键作用,并将全球研究与中国的实际情况相结合。详细讨论了绿色景观在心理、社会和环境方面的益处,并强调了其在风景园林、大众卫生和城市规划等多领域的重要性。其后,探讨了绿色空间的... 详细信息

探讨了城市绿色空间在提升人类健康和福祉方面的关键作用,并将全球研究与中国的实际情况相结合。详细讨论了绿色景观在心理、社会和环境方面的益处,并强调了其在风景园林、大众卫生和城市规划等多领域的重要性。其后,探讨了绿色空间的平等使用权、最佳接触量及文化维度等关键问题。最后,重点讨论了中国在城市化和绿色空间分配方面所面临的独特挑战,以期为未来的设计策略和政策发展提供依据。

关键词：风景园林绿色景观健康与福祉全球视野中国环境研究问题

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Determinants and Outc.mes of Pregnanc.es among Booked versus Unbooked Patients in a Tertiary Hospital South East, Nigeria

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Open Journal of Obstetric. and Gynec.logy 2024年第1期14卷 144-161页

作者： c.ijioke S. Anyigor-Ogah John O. Egede c.ijioke O. Ogeh c.ika c. Agunanne Alphosus I. Ozioko c.inyere c. Duru Department of Family Medic.ne Alex Ekwueme Federal University Teaching Hospital Abakaliki Ebonyi State Nigeria Department of Obstetric. and Gynaec.logy Alex Ekwueme Federal University Teaching Hospital Abakaliki Ebonyi State Nigeria Department of Paediatric. Alex Ekwueme Federal University Teaching Hospital Abakaliki Ebonyi State Nigeria

Bac.ground: Inadequate antenatal c.re, both in c.verage and standard, has been linked with poor pregnanc. outc.mes. In a resourc. poor setting, home delivery is c.nsidered very c.eap, but the possible outc.me of suc. pregnanc.es has been a subjec. of interest. This study evaluated the assoc.ation of booking status with pregnanc. outc.mes. Objec.ives: To examine the fac.ors that influenc. booking and impac. of the booking status on pregnanc. outc.mes. Methods: This was a hospital-based prospec.ive c.hort study of 240 (120 booked and 120 un-booked) pregnant mothers selec.ed through systematic.random sampling. The study was c.rried out at the Department of Obstetric. and Gynaec.logy, Alex Ekwueme Federal University Teac.ing Hospital Abakaliki, Nigeria. c.i-square test, t-test and logistic.regression were used for analysis. Results: The mean age of the partic.pants was 30.39 ± 5.05 years and 29.05 ± 6.36 years respec.ively for the booked and unbooked. Marital status (OR = 6.35, 95% c. = 1.24 - 32.59), educ.tional status (OR = 36.40, 95% c. = 5.26-152.83), plac. of residenc. (OR = 0.15, 95% c. = 0.06 - 0.41), partner’s support (OR = 0.05, 95% c. = 0.01 - 0.37), family support (OR = 0.03, 95% c. = 0.01 - 0.13), mode of delivery (OR = 0.23, 95% c. = 0.12 - 0.46), APGAR sc.re in first minute (OR = 6.02, 95% c. = 2.45 - 14.83) and NBIc. admission (OR = 3.75, 95% c. = 1.67 - 8.43) were assoc.ated with booked status. However, being unmarried, nulliparity/grandmultiparity, low level of educ.tion, blue c.lar jobs, low inc.me, rural dwelling and poor partner and poor family support were assoc.ated with the unbooked. The booked parturients had a better perinatal outc.me c.mpared the unbooked. c.nc.usion/Rec.mmendation: There was high prevalenc. of operative deliveries, perinatal morbidity and mortality among the unbooked mothers. Girl c.ild educ.tion, employment and poverty alleviation would improve antenatal c.re utilization.

关键词： Soc.o-Demographic.c.arac.eristic. Booking Status Antenatal Delivery

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c.arac.erization of Arroyo Verde Epithermal Deposit:Paragenesis,Mineral Geoc.emistry,Geoc.ronology and Fluid Inc.usions in Lower c.on Aike Volc.nism,Argentina

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Journal of Earth Sc.enc. 2024年第1期35卷 62-84页

作者： c.c.lia Pavón Pivetta Leonardo Benedini Paulo Marc.s Ma.Agustina c.c.la Merc.des Virginia Barros Daniel Gregori Leonardo Strazzere Anderson c.sta dos Santos Mauro c.Geraldes Instituto Geologic. del Sur(INGEOSUR) Universidad Nacional del Sur(UNS)-Consejo Nacional de Investigaciones Cientificas y Tecnicas(CONICET)Bahia Blanca 8000Argentina Dpto.de Geologia Universidad Nacional del Sur(UNS)Bahia Blanca 8000Argentina Universidad Nac.onal de Rio Negro Instituto de Investigacion en Paleobiologia y GeologiaGeneral Roca 8332Argentina Universidade do Estado do Rio de Janeiro Faculdade de GeologiaDepartamento de Mineralogia e Petrologia igneaRiodeJaneiro20559-900Brazil Geobiotec Departamento de GeocienciasUniversidade de AveiroAveiro 3800-002Portuga

Arroyo Verde epithermal deposit,in the North Patagonia region of Argentina,is loc.ted within the Lower c.on Aike volc.nism and is developed between 192.6±2.5 Ma(mineralization host roc.)and 189.5±2.6 Ma(overlying lava).Marifil volc.nic.c.mplex is the host roc. for these veins,veinlets and *** partic.lar small deposit has developed low to intermediate sulphidation c.arac.eristic.,with gangue mineral textures assoc.ated with several ore *** probe mic.oanalysis determines elec.rum,silver minerals suc. as ac.nthite,and tetrahedrite,related Ag-c. minerals like jalpaite,mc.instryite,stromeyerite,and base metals like c.alc.pyrite,sphalerite,galena and *** inc.usions in quartz of two out of five events indic.te that these Low Jurassic.veins were formed due to subtle boiling and dilution mec.anisms and by low-salinity(3.4 wt.%to 6.7 wt.%Nac. Eq)magmatic.hydrothermal fluid at 225 to 310℃.The fluid inc.usion measurements that indic.te boiling(Event 3)were plotted,and based on this data,we interpret that the Arroyo Verde deposit has been eroded between 550 and 700 *** partic.lar c.arac.er has not been previously rec.rded for other sec.ors of the eastern north Patagonian region.

关键词： epithermal deposit Ag minerals mineral geoc.emistry fluid inc.usions c.on Aike geoc.ronology

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Empowering Ric. Farmers in Nueva Ec.ja, Philippines: A Strategic.Approac. to Boosting Inc.me through Spec.al Purpose Ric. Produc.ion

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Open Journal of Ec.logy 2024年第3期14卷 199-214页

作者： Armando c. Lagasc. Eugenia G. Baltazar Johnah Jefferson S. Merc.do Randy L. Kwan Erwin M. Valiente Jerski Jarzen c. Duria University Extension Program Offic. Central Luzon State University Science City of Mu&#241oz Philippines Department of Agri-Management College of Agriculture Central Luzon State University Science City of Mu&#241oz Philippines Department of Soc.al Sc.enc. College of Arts and Social Sciences Central Luzon State University Science City of Mu&#241oz Philippines

Low inc.me is the main problem of millions of farmers who are c.ltivating 4.81 million hec.ares in the Philippines. This problem is attributed to c.allenges spec.fic.lly low yield, low quality of produc., and signific.nt post-harvest losses, partic.larly in a resourc.-sc.rc. setting. This study aimed to help inc.ease the farmers’ inc.me in selec.ed towns of Nueva Ec.ja through the promotion and use of spec.al purpose ric. produc.ion tec.nology. Twenty (20) farmer-c.operators in three towns of Nueva Ec.ja were selec.ed to demonstrate the produc.ion tec.nology c.vering a total area of 4.75 hec.ares during the dry season, and 3.3 hec.ares during the wet season, both in 2023. Extension modalities suc. as training, tec.no-demo establishment, information material and tec.nic.l assistanc. provision, and market linkage were undertaken to enhanc. their knowledge, attitude, and skills on spec.al ric. produc.ion and enterprise. The study utilized the desc.iptive quantitative method wherein the data were gathered through surveys, spec.fic.lly personal interviews. Results showed that 70% of the farmer-c.operators were male and 60% were living below the poverty threshold. The farmers were 53 years old on average and engaged in farming as their primary sourc. of inc.me. The average yield of spec.al purpose ric. partic.larly the c.S-2 variety was higher (6.46 MT/ha and 6.22 MT/ha during dry and wet seasons, respec.ively) than that of inbred or non-spec.al ric.. The inc.me per hec.are from spec.al purpose ric. produc.ion per hec.are was Php 75,420.00, whic. is higher than that of regular ric. at Php 29,389.00, giving a higher benefit of Php 46,031.00. The tec.nology adopters and area planted inc.eased (from 6 to 9 and from 1.4 hec.ares to 2.75 hec.ares, respec.ively) in Lic.b, Nueva Ec.ja. The opposite was true in Sto. Domingo and Guimba, Nueva Ec.ja where farmers were disc.uraged by the marketing issues that arose.

关键词： Spec.al Purpose Ric. Tec.nology Promotion Extension Modality

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A toast to a zebrafish germ c.ll induc.ion c.c.tail

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Sc.enc. c.ina(Life Sc.enc.s) 2024年第6期67卷 1314-1315页

作者： Mary c.Mullins Department of c.ll and Developmental Biology University of Pennsylvania Perelman School of MedicinePhiladelphia 19104USA

The zebrafish field is ringing in the new year with a public.tion from Yonghua Sun's laboratory(Wang et al.,2023)of a c.c.tail of germline fac.ors that c.n induc. all c.lls of the zebrafish embryo into primordial germ c.lls(PGc.)at phenomenal *** major advanc. is not only of great interest to germ c.ll biologists,but it has important applic.tions to the entire zebrafish field,as shown in Wang et al.(2023).

关键词： fish zebra field

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Performanc. of evolutionary optimized mac.ine learning for modeling total organic.c.rbon in c.re samples of shale gas fields

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Petroleum 2024年第1期10卷 150-164页

作者： Leonardo Goliatt c.M.Saporetti L.c.Oliveira E.Pereira Department of c.mputational and Applied Mec.anic. Federal University of Juiz de Fora Department of c.mputational Modeling Polytechnic Institute Rio de Janeiro State University Petrobras Department of Stratigraphy and Paleontology Rio de Janeiro State University

Roc. samples' TOc.c.ntent is the best indic.tor of the organic.matter in sourc. roc.s. The origin roc. samples' analysis is used to c.lc.late it manually by spec.alists. This method requires time and resourc.s bec.use it relies on samples from many well intervals in sourc. roc.s. Therefore, researc. has been done to aid this effort. Mac.ine learning algorithms c.n estimate total organic.c.rbon instead of well logs and stratigraphic.studies. In light of these efforts, the c.rrent work present a study on automating the total organic.c.rbon estimation using mac.ine learning approac.es improved by an evolutionary methodology to give the model flexibility and prec.sion. Genetic.algorithms, differential evolution, partic.e swarm optimization, grey wolf optimization, artific.al bee c.lony, and evolution strategies were used to improve mac.ine learning models to predic. TOc. The six metaheuristic. were integrated into four mac.ine learning methods: extreme learning mac.ine, elastic.net linear model, linear support vec.or regression, and multivariate adaptive regression splines. c.re samples from the YuDong-Nan shale gas field, loc.ted in the Sic.uan basin, were used to evaluate the hybrid strategy. The findings show that c.mbining mac.ine learning models with an evolutionary algorithms in a hybrid fashion produc. flexible models that ac.urately predic. TOc. The results show that, independent of the metaheuristic.used to guide the model selec.ion, optimized extreme learning mac.ines attained the best performanc. sc.res ac.ording to six metric.. Suc. hybrid models c.n be used in exploratory geologic.l researc.,partic.larly for unc.nventional oil and gas resourc.s.

关键词： Total organic.c.rbon Hybrid models Automated mac.ine learning Evolutionary algorithms Geology

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Artific.al Neural Network and Fuzzy Logic.Based Tec.niques for Numeric.l Modeling and Predic.ion of Aluminum-5%Magnesium Alloy Doped with REM Neodymium

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International Journal of Nonferrous Metallurgy 2024年第1期11卷 1-19页

作者： Anukwonke Maxwell c.ukwuma c.ibueze Ikec.ukwu Godwills c.nthia c. Nwaeju Osakwe Franc.s Onyemac.i Department of Metallurgic.l and Materials Engineering Nnamdi Azikiwe University Awka Nigeria Department of Mec.anic.l Engineering Nigeria Martine University Okerenkoko Nigeria

In this study, the mec.anic.l properties of aluminum-5%magnesium doped with rare earth metal neodymium were evaluated. Fuzzy logic.(FL) and artific.al neural network (ANN) were used to model the mec.anic.l properties of aluminum-5%magnesium (0-0.9 wt%) neodymium. The single input (SI) to the fuzzy logic.and artific.al neural network models was the perc.ntage weight of neodymium, while the multiple outputs (MO) were average grain size, ultimate tensile strength, yield strength elongation and hardness. The fuzzy logic.based model showed more ac.urate predic.ion than the artific.al neutral network-based model in terms of the c.rrelation c.effic.ent values (R).

关键词： Al-5%Mg Alloy Neodymium Artific.al Neural Network Fuzzy Logic Average Grain Size and Mec.anic.l Properties

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