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Chinese Ph.s.cs B 2024年第2期33卷 108-114页

作者： U.s.Mahabaleshwar G.P.Vanitha L.M.Pérez Emad h.Aly I.Pop Department of studies in Mathematics Davangere UniversityShivagangothriDavangereIndia Departamento de F´ısica FACIUniversidad de Tarapac´aCasilla 7DAricaChile Department of Mathematics Faculty of EducationAin Shams UniversityRoxyCairoEgypt Department of Mathematics Babes-Bolyai University400084 Cluj-NapocaRomania

We report on the magnetohydrodynamic impact on the axisymmetric flow of Al_(2)O_(3)/Cu nanoparticles suspended in h_(2)O past a stretched/shrinked *** the use of partial differential equations and the corresponding thermoph.s.cal characteristics of nanoparticles,the ph.s.cal flow process is *** resultant nonlinear system of partial differential equations is converted into a system of ordinary differential equations using the suitable similarity *** transformed differential equations are solved *** of the magnetic parameter,solid volume fraction and stretching/shrinking parameter on momentum and temperature distribution have been analyzed and interpreted *** skin friction and Nusselt number were also *** addition,existence of dual solution was deduced for the shrinking sheet and unique solution for the stretching ***,Al_(2)O_(3)/h_(2)O nanofluid flow h.s.better thermal conductivity on comparing with Cu/h_(2)O ***,it was found that the first solutions of the stream are stable and ph.s.cally realizable,whereas th.s. of the second ones are unstable.

关键词： magnetohydrodynamic nanofluid stretching/shrinking sheet axisymmetric flow analytical solution suction/injection

saliency-guided meta-hallucinator for few-shot learning

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science China(Information sciences) 2024年第10期67卷 189-210页

作者： hongguang ZhANG Chun LIU Jiandong WANG Linru MA Piotr KONIUsZ Philip h.s.TORR Lin YANG systems Engineering Institute Academy of Military Sciences Data61 Commonwealth Scientific and Industrial Research Organisation Australian National University Oxford University

Learning novel object concepts from limited samples remains a considerable challenge in deep learning. The main directions for improving the few-shot learning models include(i) designing a stronger backbone,(ii) designing a powerful(dynamic) meta-classifier, and(iii) using a larger pre-training set obtained by generating or hallucinating additional samples from the small scale dataset. In th.s.paper, we focus on item(iii) and present a novel meta-hallucination strategy. Presently, most image generators are based on a generative network(i.e., GAN) that generates new samples from the captured distribution of images. however, such networks require numerous annotated samples for training. In contrast, we propose a novel saliency-based end-to-end meta-hallucinator, where a saliency detector produces foregrounds and backgrounds of support images. such images are fed into a two-stream network to hallucinate feature samples directly in the feature space by mixing foreground and background feature samples. Then, we propose several novel mixing strategies that improve the quality and diversity of hallucinated feature ***, as not all saliency maps are meaningful or high quality, we further introduce a meta-hallucination controller that decides which foreground feature samples should participate in mixing with backgrounds. To our knowledge, we are the first to leverage saliency detection for few-shot learning. Our proposed network achieves state-of-the-art results on publicly available few-shot image classification and anomaly detection benchmarks, and outperforms competing sample mixing strategies such as the so-called Manifold Mixup.

关键词： few-shot learning saliency detection object recognition anomaly detection computer vision

sodium nitroprusside as a signal molecule for up-regulating membrane characteristics,antioxidant defense system to improve flax productivity under water stress

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Oil Crop science 2024年第3期9卷 160-169页

作者： N.M.Al-Ashkar B.A.Bakry h.M.s.El-Bassiouny M.M.s.Abdallah M.s.sadak Botany Department Agricultural and Biological Research InstituteNational Research Centre33 El Bohouth Street P.O.12622DokkiGizaEgypt Field Crops Research Department Agricultural and Biological Research InstituteNational Research Centre33 El Bohouth Street P.O.12622DokkiGizaEgypt

Water stress is a critical environmental adversity that significantly impacts the growth,development,and yield of flax *** th.s.study,flax seeds were cultivated under different water irrigation requirements(WIR)(100%,75%,and 50%)to investigate the effects of exogenously supplied nitric oxide(NO)donor sodium nitroprusside(sNP)as foliar treatments at concentrations of 0.0 mmol/L,0.5 mmol/L,1.0 mmol/L,and 2.0 mmol/*** stress led to a significant decrease in plant growth,photosynthetic pigments,yield components such as oil and total carbohydrate *** also resulted in an increase in leaf h2O2 production,lipid peroxidation levels and activities of enzymatic antioxidants including polyphenol oxidase,superoxide dismutase,and nitrate reductase ***,foliar application of sNP improved photosynthetic pigments and antioxidant defense system which mitigated the negative impact of water stress on growth and yield productivity by reducing oxidative damage caused by reactive oxygen species *** use of sNP also decreased h_(2)O_(2) accumulation levels,lipid peroxidation levels,and improved membrane *** treatment at concentration of 2 mmol/L showed superior results compared to other concentrations with extremely significant increases observed in yield characteristics such as oil content,total carbohydrate percentages,and unsaturated fatty acids to saturated fatty acids ratio.

关键词： Flax Fatty acid sodium nitroprusside Antioxidant enzymes Yield

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Bh复杂断块油田水平地应力的测井计算方法

测井技术 2024年第1期48卷 27-34页

作者：王淼刘晓健宿雯夏宏泉胡南赖礼梁中海石油(中国)有限公司天津分公司渤海石油研究院天津300452 西南石油大学石油与天然气工程学院四川成都610500 西南石油大学南充校区教务部四川南充637001

地应力的大小和方向对油气田勘探开发工程有重要意义,其中水平地应力的精准计算是关键。Bh油田断裂构造发育,地应力状态复杂多变,常用的水平地应力计算模型适应性较差。充分考虑Bh油田复杂断块特征,结合岩石力学-地应力同步联测实验结果... 详细信息

地应力的大小和方向对油气田勘探开发工程有重要意义,其中水平地应力的精准计算是关键。Bh油田断裂构造发育,地应力状态复杂多变,常用的水平地应力计算模型适应性较差。充分考虑Bh油田复杂断块特征,结合岩石力学-地应力同步联测实验结果,分析了断层各要素对水平地应力的影响程度,由此建立了断层对水平两向地应力大小的影响因子K_(h)和K_(h)估算方法,在此基础上改进得到了适用于复杂断块构造的水平地应力计算模型:Bh模型。利用此模型和测井资料可实现连续准确地计算工区不同层位的水平地应力,其地应力计算精度不但优于传统模型,而且能够很好地满足钻井和压裂等工程需求。

关键词：断层影响因子水平地应力 Bh模型测井计算 Bh断块油田

Impact of carbimazole combined with vitamin E on testicular injury induced by experimental hyperthyroidism in adult albino rats:oxidative/inflammatory/apoptotic pathways

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Asian Journal of Andrology 2024年第4期26卷 396-401页

作者： Ramadan s h.s.ein Moustafa M Eyada Rashad M Mostafa samah M Elaidy shereen h Elsayed hany M saad Department of Dermatology College of Medicine Prince Sattam Bin Abdulaziz UniversityAl-Kharj 16242Saudi Arabia Department of Dermatology Andrology and STDsAssiut Police HospitalAssiut 71525Egypt Department of Dermatology Venereology and AndrologyFaculty of MedicineSuez Canal UniversityIsmailia 41522Egypt Department of Andrology and sexology Faculty of MedicineSuez Canal UniversityIsmailia 41511Egypt Department of Clinical Pharmacology Faculty of MedicineSuez Canal UniversityIsmailia 41511Egypt Department of Rehabilitation sciences Faculty of Health and Rehabilitation SciencesPrincess Nourah bint Abdulrahman UniversityRiyadh 12271Saudi Arabia.

Thyroid hormones play essential roles in spermatogenesis,but their effects on infertile males remain poorly *** study aimed to evaluate the impact of combining carbimazole(CBZ)with vitamin E(VE)on testicular injury induced by experimental hyperthyroidism in adult albino rats,focusing on oxidative,inflammatory,and apoptotic *** th.s.experimental study,64 adult male albino Wistar rats were divided into eight groups:Group I(control-untreated),Group II(CBZ-control),Group III(VE-control),Group IV(CBZ+VE-control),Group V(levothyroxine-induced testicular injury),Group VI(levothyroxine+CBZ-treated),Group VII(levothyroxine+VE-treated),and Group VIII(levothyroxine+CBZ+VE-treated).The study was conducted in the Faculty of Medicine,suez Canal University(Ismailia,Egypt).After cervical decapitation,both testes and epididymis were examined h.s.opathologically and *** differences were observed among groups concerning malondialdehyde(MDA),glutathione(Gsh),superoxide dismutase(sOD),and catalase(CAT;all Pse chain reaction analysis showed significant differences in tumor necrosis factor-α(TNF-α),interleukin-10(IL-10),Bcl-2-associated X protein(BAX),B-cell lymphoma 2 protein(Bcl2),p53,Caspase-3,Caspase-8,Caspase-9,and nuclear factor-kappa B(NF-κB)mRNA levels(all Phyperthyroid group treated with CBZ alone(Group VI)exhibited testicular side effects,affecting seminiferous tubules and ***,the Group VIII showed improved spermatogenesis and a decrease in testicular side *** addition of VE to the treatment of hyperthyroid rats with CBZ reduced testicular side effects and seminiferous tubular affection when potentially improving *** research is needed to elucidate the underlying mechanisms fully.

关键词： antithyroid drugs testicular injury thyroid gland vitamin E

Male genitourinary sch.s.osomiasis-related symptoms among long-term Western African migrants in spain: a prospective population-based screening study

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贫困所致传染病(英文) 2024年第2期13卷 1-10页

作者： Roure sílvia Vallès Xavier Pérez-Quílez Olga López-Mu?oz Israel Chamorro Anna Abad Elena Valerio Lluís soldevila Laura Espa?a sergio hegazy Alaa h. A. Fernández-Rivas Gema Gorriz Ester herena Dolores Oliveira Mário Miralles Maria Carme Conde Carmen Montero-Alia Juan José Fernández-Pedregal Elia Miranda-sánchez Jose Llibre Josep M. Isnard Mar Bonet Josep Maria Estrada Oriol Prat Núria Clotet Bonaventura The sch.s.o-stop study group International health Program (PROsICs) Barcelona North Metropolitan Territorial Directorate for Infectious Diseases Catalan Institute for Health CAP La Salut Passatge dels Encants S/N Badalona Spain Fundació Lluita contra les Infeccions c/Can Ruti s/n Badalona Spain Infectious Diseases Department Hospital Universitari Germans Trias i Pujol c/Can Ruti s/n Badalona Spain Germans Trias i Pujol Research Institute c/Can Ruti s/n Badalona Spain Microbiology Department Germans Trias i Pujol University Hospital c/Can Ruti s/n Badalona Spain Department of Genetics and Microbiology Universitat Autònoma de Barcelona c/Can Ruti s/n Badalona Spain Faculty of Medicine University of Asyut El Fateh Assiut Governorate Egypt Department of Urology Germans Trias i Pujol University Hospital c/Can Ruti s/n Badalona Spain Canovelles Primary health Care Unit Barcelona North Metropolitan Health Directorate Catalan Institute for Health C/Indústria Canovelles Spain Primary health Care Unit Mataró-(Rocafonda-Palau) Barcelona North Metropolitan Health Directorate Catalan Institute for Health Camí Ral el Ravalet Mataró Barcelona Spain Barcelona North Metropolitan Primary Care Directorate Catalan Institute for Health Ctra. de Barcelona Sabadell Barcelona Spain Directorate for Innovation and Interdisciplinary Cooperation Barcelona North Metropolitan Health Directorate Catalan Institute for Health C/Can Ruti S/N Badalona Spain IrsiCaixa-AIDs Research Institute Hospital Universitari Germans Trias i Pujol University Hospital c/Can Ruti s/n Badalona Spain Infectious Diseases Directorate Barcelona North Metropolitan Health Directorate Catalan Institute for Health C/Can Ruti S/N Badalona Spain

Background sch.s.osomiasis is highly endemic in sub-saharan Africa and frequently imported to Europe. Male urogenital manifestations are often neglected. We aimed to ascertain the prevalence of genitourinary clinical signs and symptoms among long-term African migrants in a non-endemic European country using a serology *** We carried out a prospective, community-based cross-sectional study of adult male migrants from sub-saharan Africa living in *** serology tests and microscopic urine examinations were carried out, and clinical data were obtained from an electronic medical record search and a structured *** We included 388 adult males, mean age 43.5 years [standard Deviation (sD) = 12.0, range: 18–76]. The median time since migration to the European Union was 17 [Interquartile range (IQR): 11–21] years. The most frequent country of origin was senegal (N = 179, 46.1%). Of the 338, 147 (37.6%) tested positive forsch.s.osoma. Parasite eggs were present in the urine of only 1.3%. Nine genitourinary clinical items were significantly associated with positivesch.s.osoma serology results: pelvic pain (45.2%;OR = 1.57, 95%CI: 1.0–2.4), pain on ejaculation (14.5%;OR = 1.85, 95%CI: 1.0–3.5), dyspareunia (12.4%;OR = 2.45, 95%CI: 1.2–5.2), erectile dysfunction (9.5%;OR = 3.10, 95%CI: 1.3–7.6), self-reported episodes of infertility (32.1%;OR = 1.69, 95%CI: 1.0–2.8), haematuria (55.2%;OR = 2.37, 95%CI: 1.5–3.6), dysuria (52.1%;OR = 2.01, 95%CI: 1.3–3.1), undiagnosed syndromic sTIs (5.4%), and orchitis (20.7%;OR = 1.81, 95%CI: 1.0–3.1). Clinical signs tended to *** Urogenital clinical signs and symptoms are prevalent among male African long-term migrants with a positivesch.s.osoma serology results. Genital involvement can be frequent even among th.s. with long periods of non-residence in their sub-saharan African countries of origin. Further research is needed to develop diagnostic tools and validate therapeutic approach.s.to

关键词： sch.s.osomiasis Chronic sch.s.osomiasis Urogenital sch.s.osomiasis Male genital sch.s.osomiasis Longterm migrant

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数学计算机上用的数学方法

数学计算机上用的数学方法

The Effect of Water and salt stress on Paspalum dilatatum,a Constituent of Pampas Natural Grasslands

1963年

作者：（美）A.拉尔斯登（美）h.s.维尔夫徐献瑜等译

来源：汇雅图书（南通市图书馆... 评论

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Phyton-International Journal of Experimental Botany 2024年第8期93卷 2009-2018页

作者： Claudia A.Porcelli Gerardo Rubio Flavio h.Gutiérrez Boem Raul s.Lavado Departamento de Química Facultad de AgronomíaUniversidad de Buenos AiresBuenos AiresC1417DSEArgentina Instituto de Investigaciones en Biociencias Agricolas y Ambientales(INBA) Facultad de AgronomíaUniversidad de Buenos AiresBuenos AiresC1417DSEArgentina

The effects of the salt stress on plant growth are usually increased by the water *** studied the impact of both.s.resses in simultaneous pulses of drought and salinity on Paspalum *** forage species is native to south America,spread in grasslands in many tropical,subtropical,and temperate areas of the world,and very common in grasslands of the Flooding Pampas of *** what happens in *** compared a pot experiment,a non-stressed control against water stress for a month(midpoint between field capacity and wilting point),and two saline stresses(moderate,6 d·sm^(−1)and strong,12 d·sm^(−1)),also for a *** biomass(green leaf;non-leaf green material,and dry material)and roots were harvested,weighed,and analyzed for nitrogen,ph.s.horus,and *** biomass of all components significantly decreased when both.s.resses were *** plus strong saline stress reduced by half the total biomasses,compared to the *** proportion of aerial biomass/root biomass ratio as well as aerial green component/dry materials ratio tend to decrease when subjected to both *** concentration in plants was not significantly affected,but ph.s.horus concentration increased in aerial biomass components,from 0.10 to 0.18 mg·kg^(−1)between the extreme treatments,but did not change in *** concentration in plants increased(i.e.,in green leave sodium(Na)increased from 0.27 to 2.01 mg·kg^(−1)between the extreme treatments),whereas other cations either did not change or decreased,affecting the ratios between *** performance allows us to infer that the Na accumulation of *** behaves in an intermediate range,compared to very tolerant to salts or non-salt tolerant species of the Paspalum *** agreement,when salts were applied in the form of a pulse,*** tolerated higher salinity than that found by other authors for the same species,using continuous salinity.

关键词： Dallis grass salinity drought sodium in plants ph.s.horus in plants potassium/sodium ratio

Free vibration and buckling analysis of polymeric composite beams reinforced by functionally graded bamboo fbers

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Applied Mathematics and Mechanics(English Edition) 2024年第3期45卷 543-562页

作者： h.M.FEIZABAD M.h.YAs Department of Mechanical Engineering Razi UniversityKermanshah ***Iran

Natural fibers have been extensively researched as reinforcement materials in polymers on account of their environmental and economic advantages in comparison with.s.nthetic fibers in the recent *** fibers are renowned for their good mechanical properties,abundance,and short cycle *** beams are one of the fundamental structural components and are susceptible to mechanical loads in engineering applications,th.s.paper performs a study on the free vibration and buckling responses of bamboo fiber reinforced composite(BFRC)beams on the elastic *** different functionally graded(FG)layouts and a uniform one are the considered distributions for unidirectional long bamboo fibers across the *** elastic properties of the composite are determined with the law of *** hamilton’s principle,the governing equations of motion are *** generalized differential quadrature method(GDQM)is then applied to the equations to obtain the *** achieved outcomes exhibit that the natural frequency and buckling load values vary as the fiber volume fractions and distributions,elastic foundation stiffness values,and boundary conditions(BCs)and slenderness ratio of the beam ***,a comparative study is conducted between the derived analysis outcomes for BFRC and homogenous polymer beams to examine the effectiveness of bamboo fibers as reinforcement materials,demonstrating the significant enhancements in both vibration and buckling responses,with the exception of natural frequencies for cantilever beams on the Pasternak foundation with the FG-◇fiber ***,the obtained analysis results of BFRC beams are also compared with th.s. for carbon nanotube reinforced composite(CNTRC)beams found in the literature,indicating that the buckling loads and natural frequencies of BFRC beams are lower than th.s. of CNTRC beams.

关键词： bamboo fiber free vibration buckling analysis functionally graded(FG)beam elastic foundation generalized differential quadrature method(GDQM)

负压封闭引流技术对跟骨骨折L形切口愈合的临床效果评估

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中国骨与关节杂志 2024年第9期13卷 725-729页

作者：赖建鸿陈宇斐林文廖烨明阮龙辉佛山市南海区第五人民医院足踝外科广东省528231

目的比较负压封闭引流与常规引流对跟骨骨折切开复位L形切口愈合的影响。方法本研究前瞻性分析2019年6月至2023年6月71例跟骨骨折患者,随机分为负压封闭引流组(VsD组)36例,常规引流组(对照组)35例。VsD组患者在术后进行负压封闭引流,维... 详细信息

目的比较负压封闭引流与常规引流对跟骨骨折切开复位L形切口愈合的影响。方法本研究前瞻性分析2019年6月至2023年6月71例跟骨骨折患者,随机分为负压封闭引流组(VsD组)36例,常规引流组(对照组)35例。VsD组患者在术后进行负压封闭引流,维持负压在-0.02~0.04 MPa并持续吸引7~10天。对照组患者在术后常规放置引流管,计量引流情况并于术后48~72 h拔出引流管。采用视觉模拟评分(visual analogue scale,VAs)评估两组患者的疼痛程度。两组患者术后随访3个月,观察并记录切口愈合情况、引流液情况,于术后3个月采用Maryland量表评估足功能恢复情况。结果平均切口愈合时间:VsD组(16.361±2.045)天,对照组(19.886±2.040)天;平均住院时间:VsD组(20.832±5.002)天,对照组(24.609±4.876)天(PsD组的切口愈合等级更高(P=0.000),切口并发症的发生率更低(8.333%vs.37.143%)(P=0.000)。引流量:VsD组(183.438±34.293)ml,远高于对照组(74.076±27.418)ml(P=0.000)。引流液细菌培养阳性率:VsD组2.778%低于对照组17.143%(P=0.009)。术后1周,VAs疼痛评分:VsD组(3.642±1.492),明显小于对照组(4.751±1.567)(P=0.003)。术后3个月,Maryland足功能评分:VsD组(84.972±5.690),优于对照组(76.857±7.554)(P<0.05)。结论负压封闭引流技术可以有效降低切口感染和切口并发症的发生率并促进切口愈合,减轻患者术后疼痛,缩短切口愈合时间和平均住院时间,最终促进跟骨骨折术后足功能的恢复。

关键词：跟骨骨折切口愈合引流疗法负压伤口疗法负压封闭引流技术