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Hard life for sons in the nest?Sex-dependent offspring mortality in Great Tits in urban and forest areas

Avian Research 2024年第1期15卷 91-97页

作者： Nora agh Henriett Anna Dalvári Krisztián Szabó Ivett Pipoly András Liker HUN-REN-PE Evolutionary Ecology Research Group University of PannoniaH-8200VeszpremPf.1158.Hungary Behavioral Ecology Research Group Center for Natural SciencesUniversity of PannoniaH-8200Pf.1158.VeszpremHungary Molecular Ecology Research Group Department of EcologyUniversity of Veterinary Medicine BudapestH-1400Pf.2.BudapestHungary Synlab Hungary Ltd. H-1211Weiss Manfr´ed Str.5-7BudapestHungary

Sex-biased mortality can occur in birds during development,for example due to sexual differences in energy requirement and/or environmental sensitivity,or the effects of sex hormones or sex differences in the expression of mutations linked to sex *** extent of sex-bias in mortality may also be related to environmental conditions that influence offspring development and *** areas often provide poorer conditions for nestling development resulting in higher offspring mortality compared to natural areas,which may accelerate sex differences in offspring mortality in *** test this hypothesis,we examined the sex ratio of dead offspring in Great Tits(Parus major),using 427 samples of unhatched eggs and dead nestlings collected in two urban and two forest sites between 2013 and *** ratio of males in the whole sample of dead offspring(56.9%)was significantly higher than expected by an 1:1 ratio,and the strongest sex biases were detected in urban areas(57.6%males)and in young nestlings(<14 days old,59.0%males).However,the sex ratios of dead offspring did not differ significantly among study sites and between offspring developmental stages.29.3%of unhatched eggs contained a visible embryo,and the proportion of embryo-containing unhatched eggs did not differ significantly between urban and forest study *** results suggest male-biased offspring mortality in Great Tits,and highlight the need of large datasets to detect subtle differences between habitats and developmental stages.

关键词： Great Tit Urbanization Nestling mortality Sex related differences

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Investigation of the stress rupture behavior of GTD-111 superalloy melted by VIM/VAR

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International Journal of Minerals,Metallurgy and Materials 2018年第9期25卷 1035-1041页

作者： Ainaz agh Alireza Amini Department of Materials Engineering Islamic Azad University Karaj Branch

The effects of vacuum induction melting(VIM) and vacuum arc remelting(VAR) processes on the microstructure and stress rupture properties of Ni-based GTD-111 superalloy were investigated. Samples of GTD-111 master alloy were melted in VIM and VAR furnaces and then poured into a preheated ceramic mold for VIM melt or into a water-cooled copper mold for VAR melt. The as-cast samples were examined radiographically to ensure that no casting defects were present in the final castings; the samples were then heat-treated using a standard heat-treatment cycle. The microstructure of the samples was investigated using optical microscopy and scanning electron microscopy in conjunction with energy-dispersive X-ray spectroscopy for microanalysis. On the basis of standard ASTM-E139, stress rupture tests were carried out at 1000°C under a stress of 300 MPa. The results showed that a γ matrix, fine γ′ precipitates, a γ–γ′ eutectic structure, carbide particles, and some harmful phases such as σ and η phases were present in the as-cast samples. The γ′ precipitates with cubic morphology appeared in the matrix after the standard heat-treatment process. The extent of segregation and the amount of γ–γ′ eutectic structure formed in the VAR-prepared sample were less than in the VIM-prepared sample. The results of stress rupture tests showed that the rupture time for the VAR sample was 43% longer than that for the VIM sample.

关键词： GTD-111 vacuum induction melting(VIM) vacuum arc remelting(VAR) stress rupture

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Effects of salinity on egg and fecal pellet production, development and survival, adult sex ratio and total life span in the calanoid copepod, A cartia tonsa:a laboratory study

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Chinese Journal of Oceanology and Limnology 2016年第4期34卷 709-718页

作者： SHAYEGAN Majid ESMAEILI FEREIDOUNI Abolghasem agh Naser JANI KHALILI Khosrow MSc.Student Faculty of Animal Sciences and Fisheries Sari Agricultural Sciences and Natural Resources University (SANRU) Fisheries Department Faculty of Animal Sciences and Fisheries Sari Agricultural Sciences and Natural Resources University (SANRU) Artemia Reference Center Urmia University

The ef fects of salinity on the copepod, A cartia tonsa in terms of daily egg production rate(EPR), hatching success, fecal pellet production rate(FPR), naupliar development time and survival, sex ratio, and total life span were determined in laboratory conditions through three experiments. In experiment 1, EPR, hatching success, and FPR of individual females were monitored at salinities of 13, 20, 35 and 45 during short-periods(seven consecutive days). Results show EPR was aff ected by salinity with the highest outputs recorded at 20 and 35, respectively, which were considerably higher than those at 13 and 45. Mean FPR was also higher in 35 and 20. In experiment 2, the same parameters were evaluated over total life span of females(long-term study). The best EPR and FPR were observed in 35, which was statistically higher than at 13 and 20. In experiment 3, survival rates of early nauplii until adult stage were lowest at a salinity of 13. The development time increased with increasing of salinity. Female percentage clearly decreased with increasing salinity. Higher female percentages(56.7% and 52.2%, respectively) were signifi cantly observed at two salinities of 13 and 20 compared to that at 35(25%). Total longevity of females was not af fected by salinity increment. Based on our results, for mass culture we recommend that a salinity of 35 be adopted due to higher reproductive performances, better feeding, and faster development of A. tonsa.

关键词： Acartia tonsa salinity egg and fecal pellet production sex ratio life span Caspian Sea

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How to save the dying Lake Urmia

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Acta Geologica Sinica(English Edition) 2014年第S1期88卷 178-179页

作者： Naser agh Urmia Lake Research Institute Urmia University

1 Introduction Lake Urmia in the northwestern corner of Iran is one of the largest permanent hypersaline lakes in the world and the largest lake in the Middle East(1,2,3).The lake was

关键词： Lake Urmia Climate change Agriculture Dams Biodiversity

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Tissue engineering in burn scar reconstruction

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Burns & Trauma 2015年第3期3卷 122-132页

作者： PPM van Zuijlen KLM Gardien meh Jaspers EJ Bos DC Baas AJM van Trier E Middelkoop Burn Center Red Cross HospitalBeverwijkThe Netherlands Department of Plastic Reconstructive and Hand SurgeryRed Cross HospitalBeverwijkThe Netherlands Association of Dutch Burn Centers BeverwijkThe Netherlands Department of Plastic Reconstructive and Hand SurgeryMOVE Research InstituteVU University Medical CenterAmsterdamThe Netherlands

Nowadays,most patients with severe burns will survive their *** evolution is accompanied by the challenge to cover a large percentage of total body surface area ***,more and more patients have to deal with the sequelae of burn scars and require(multiple)*** review provides a gross overview of developments in the field of tissue engineering for permanent burn wound coverage and reconstructive burn surgery,focusing on usage and clinical *** only skin substitutes will be discussed but also the replacement of subcutaneous fat tissue and cartilage.

关键词： Burns Tissue engineering Scar Contracture Substitute Subcutaneous fat tissue Cartilage Reconstruction

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Corrosion resistance of Ti and Ti-Pd alloy in phosphate buffered saline solutions with and without H_2O_2 addition

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Transactions of Nonferrous Metals Society of China 2013年第3期23卷 866-875页

作者： P. HANDZLIK phandzli@agh.edu.pl K. FITZNER Faculty of Non-Ferrous Metals AGH University of Science and Technology 30 Mickiewicza Ave. 30–059 Cracow Poland

Corrosion resistance of pure titanium（Grade 2） and Ti-Pd alloy（Grade 7） was studied using the electrochemical techniques of potentiodynamic measurements and electrochemical impedance spectroscopy（EIS）.Measurements were performed at the temperature of 36.6 ℃ in two solutions：PBS solution with pH of 7.4 simulating conditions of healthy human body,and PBS solution with pH of 5.2 and with the addition of hydrogen peroxide（0.015 mol/L） simulating the inflammatory *** is found that,Ti Grade 7 can be a good candidate as a material for orthopedic implant application,because its corrosion resistance in the PBS solution containing H2O2 is better（lower corrosion current densities） than that of pure titanium.

关键词： titanium Ti-Pd alloy biomaterials corrosion inflammation electrochemical impedance spectroscopy

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Determinants of Health-Promoting Behaviors among Type 2 Diabetic Patients: Voice of Iran

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Open Journal of Endocrine and Metabolic Diseases 2014年第9期4卷 219-224页

作者： Azar Tol Bahram Mohebbi Roya Sadeghi agh Babak Maheri Mohammad Reza Eshraghian Department of Health Education and Promotion School of Public Health Tehran University of Medical Sciences Tehran Iran School of Medicine Iran University of Medical Sciences Tehran Iran Department of Biostatistics School of Public Health Tehran University of Medical Sciences Tehran Iran

Introduction: The aim of this study was to determine Health-Promoting Behaviors among type 2 diabetic mellitus patients. Patients and Methods: A cross-sectional study was conducted on 440 diabetic patients referred to selected teaching hospitals affiliated to Tehran University of Medical Sciences (TUMS) during six months in 2013. A two section 40-items self-report Questionnaire with demographic variables (12 items) and Health-Promoting Behaviors scale (28 items) included exercise (7 items), risk reducing (7 items), life enjoyment (3 items), stress management (5 items), responsibility (3 items) and healthy eating (3 items) domains. Data was analyzed using SPSS software version 11.5. Level of significance was set at p 0.05 level. Results: Mean scores of total health promoting behaviors in participants were (55.88 ± 18.09) and in domains of exercise, risk reducing, life?enjoyment, stress management, responsibility and healthy eating were (8.2 ± 6.5), (12.2 ± 6.1), (7.8 ± 2.6), (12.3 ± 3.8), (3.3 ± 3.1) and (6.9 ± 2.8) respectively. Life enjoyment was emphasized as the most significant domain in health promoting behaviors scale (65 percent). Study results revealed that there was a significant association among total health promoting behavior and age (p = 0.01), occupation (p = 0.01), family income (p p = 0.01) and HbA1C(p < 0.001). Conclusion: Study findings revealed the necessity of tailoring specific intervention programs to promote exercise and responsibility domains posit.

关键词： Health-Promoting Behaviors Type 2 Diabetes Patients

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Indoor Layout Estimation by Fusing Monocular RGB Image Features Extracted with HRNet

Indoor Layout Estimation by Fusing Monocular RGB Image Featu...

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第三十九届中国控制会议

作者： Rong-Ze Huang Yin-Bo Liu meh Jabeen Qing-Hao Meng Institute of Robotics and Autonomous Systems Tianjin Key Laboratory of Process Measurement and ControlSchool of Electrical and Information EngineeringTianjin University

Indoor layout estimation（ILE） is a challenging research that segments the natural indoor scene image into floor,walls and ceiling,and it has a wide range of application prospects in the fields such as scene understanding,reconstruction,robot positioning,and virtual *** ILE method by merging multiple feature s from a monocular red-green-blue（RGB） image was ***,the High-resolution networks（HRNet） was used to extract the features of indoor corner keypoints（CKs） and informative edges（IEs） in the form of ***,the extracted features were then selected through a room type（RT）classification ***,a feature fusion algorithm was proposed,which obtained the initial layout hypothe sis through CK features and then continuously optimized the layout hypothe sis with IE *** proposed ILE method was validated on the large scene understanding challenge（LSUN） dataset.

关键词： Indoor layout estimation Corner keypoint Informative edge Fusion algorithm High-resolution net

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低合金钢晶界处痕量无素与合金元素间的交互作用

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国外钢铁钒钛 1989年第3期2卷 64-68,45页

作者： mis.,RDK 何安西

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废气中的CO2／CO,压力降和烧结终点之间的关系

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国外钢铁 1989年第2期14卷 66-68页

作者： Sha.,meh 徐荆芳

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