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非生物储存因素互作对储藏土耳其带壳榛子呼吸、干物质损失和黄曲霉毒素B_(1)污染的影响

粮油食品科技 2021年第6期29卷 16-22页

作者： kalliopi mylona Angel Medina Naresh Magan 英国克兰菲尔德大学环境和农业食品领域学院应用真菌学团队英国克兰菲尔德MK430AL

榛子是一种具重要经济意义、世界各地广泛食用的坚果,易受黄曲霉感染和黄曲霉毒素的污染。以土耳其榛子为研究对象,旨在了解不同的温度和可利用水分下,自然存储的带壳榛子的量化呼吸速率、干物质损失(DML)和黄曲霉毒素B_(1)(AFB_(1))的... 详细信息

榛子是一种具重要经济意义、世界各地广泛食用的坚果,易受黄曲霉感染和黄曲霉毒素的污染。以土耳其榛子为研究对象,旨在了解不同的温度和可利用水分下,自然存储的带壳榛子的量化呼吸速率、干物质损失(DML)和黄曲霉毒素B_(1)(AFB_(1))的污染等情况,以及榛子储存前附加接种黄曲霉对干物质损失和AFB_(1)污染的影响。榛子和相关菌群的最大呼吸作用发生在0.90~0.95水分活度(aw=12.5%~18%水分含量)的潮湿条件下。这导致25和30℃下储存5 d后,榛子损失约10%的DML。储存的带壳榛子+接种黄曲霉在25~30℃和小于0.90 aw下产生类似的最佳呼吸模式。事实上,在测试的最大水分水平0.90 aw的AFB_(1)污染是最高的;这样的污染水平超过了欧盟对这些坚果污染AFB_(1)的法定限制。两组研究中,DML与所有AFB_(1)数据之间的相关性表明,由于干燥或≥0.6%不良储存引起非常小的DML变化,可导致AFB_(1)污染超过欧盟法定限制。因此,有效干燥和安全监控储存对于最大限度地降低这种重要经济商品中AFB_(1)污染风险并避免消费者暴露于此类毒素是十分必要的。

关键词：土耳其榛子储藏呼吸干物质损失黄曲霉毒素B_(1) 黄曲霉法定限制

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Arsenic speciation in fish from Greek coastal areas

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Journal of Environmental Sciences 2017年第6期29卷 300-312页

作者： Ioanna Kalantzi Kyriaki mylona Katerina Sofoulaki Manolis Tsapakis Spiros A.Pergantis Institute of Oceanography Hellenic Centre for Marine Science(HCMR)PO Box 2214Heraklion 71003CreteGreece Environmental Chemical Processes Laboratory Department of ChemistryUniuersity of CreteHeraklion 71003CreteGreece

Arsenic speciation analysis was conducted on fish samples （sardine and anchovy） collected from six areas along the Greek coastline, i.e. Artemisium Straits, Thermaikos Gulf, Amvrakikos Gulf, Strymonian Gulf, Thracian Sea, and Elefsina Gulf. Total arsenic levels ranging from 11.8 to 62.6 mg As/kg dry weight were determined. Arsenobetaine, a non-toxic form of arsenic, was found to be the main arsenic species, present at 8.6 to 58.8 mg As/kg dry weight, accounting for 67--95% of the total arsenic. Also detected in all fish samples was dimethylarsinic acid, although at considerably lower concentrations, ranging from 0.072-3.956 mg As/kg dry weight. Monomethylarsonic acid was detected at low levels in all anchovy samples, and only in sardines from one area. Finally, inorganic arsenic in the form of arsenate was detected only in fish at one area, indicating the possible effect of an environmental parameter on its presence at detectable amounts. Statistical analysis revealed the environmental variables, such as salinity, total organic carbon and nitrogen, ammonium, phosphate, total phosphorus, dissolved oxygen and pressure index, are potentially correlated to As species concentrations. Furthermore, based on factor analysis, the biological parameters, such as fish weight, lipids, protein and ash content, that are correlated to As species concentrations of fish were also identified. The interrelationship of arsenobetaine and dimethylarsinic acid concentrations within each fish species was evaluated.

关键词： Arsenic speciationArsenobetaineDimethylarsinic acidArsenateFishEnvironmental and biologicalparameters

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Grapevine Phenological Quantitative Trait SSR Genotyping Using High-Throughput HRM-PCR Analysis

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Phyton-International Journal of Experimental Botany 2020年第4期89卷 905-923页

作者： Murad Awad Photini V.mylona Alexios N.Polidoros Laboratory of Genetics and Plant Breeding Faculty of AgricultureForestry and Natural EnvironmentAristotle University of ThessalonikiThessaloniki54124Greece Institute of Plant Breeding&Genetic Resources HAO-DEMETERThermi57001Greece

Discrimination among grapevine varieties based on quantitative traits,such as flowering,veraison and ripening dates is crucial for variety selection in the context of climate change and in breeding *** traits are under complex genetic control for which 6 linked SSR loci(VVS2,VVIn16,VMC7G3,VrZAG29,VMC5G7,and VVIB23)have been *** these markers in HRM-PCR analysis,we assessed genetic diversity among a large collection of 192 grapevine *** grapevine germplasm used encompasses the majority of Greek vineyard with 181 varieties,3 prominent foreign varieties and 11 varieties of Palestinian *** SSR markers used were highly polymorphic,displaying unique melting curves for unusually higher number of samples than generally observed in SSR *** prompted us to examine sequence composition for selected samples and found that variation present as SNPs in the flanking sequences of SSR motifs was responsible for the observed ***,HRM-PCR proved to be a tool of higher analytical power to distinguish genotypes surpassing the discrimination power of conventional gel-based SSR *** study provides a better understanding of genetic variation of SSR marker loci associated to phenological traits in grapevine varieties,signifying an analytical methodology that may be of higher discrimination power in detection of polymorphism for utilization in breeding programs.

关键词： Vitis vinifera L phenological QTLs microsatellites genotyping High-resolution melting

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Rapid right ventricular pacing for balloon valvuloplasty in congenital aortic stenosis:A systematic review

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World Journal of Cardiology 2020年第11期12卷 540-549页

作者： Konstantinos S mylonas Ioannis A Ziogas Charitini S mylona Dimitrios V Avgerinos Christos Bakoyiannis Fotios Mitropoulos Aphrodite Tzifa Department of Cardiothoracic Surgery Yale New Haven HospitalNew HavenCT 06510United States Medical School Aristotle University of ThessalonikiThessaloniki 54124Greece Department of Pediatrics Trikala General HospitalTrikala 42100Greece Department of Cardiothoracic Surgery New York Presbyterian HospitalNew YorkNY 10065United States Division of Vascular Surgery First Department of SurgeryLaiko General HospitalNational and Kapodistrian University of AthensAthens 11527Greece Department of Pediatric Cardiac Surgery Mitera Children’s HospitalAthens 15123Greece Department of Pediatric Cardiology and Adult Congenital Heart Disease Mitera Children’s HospitalAthens 15123Greece

BACKGROUND Balloon aortic valvuloplasty(BAV)is a well-established treatment modality for congenital aortic valve *** To evaluate the role of rapid right ventricular pacing(RRVP)in balloon stabilization during BAV on aortic regurgitation(AR)in pediatric *** A systematic review of the MEDLINE,Cochrane Library,and Scopus databases was conducted according to the PRISMA guidelines(end-of-search date:July 8,2020).The National Heart,Lung,and Blood Institute and Newcastle-Ottawa scales was utilized for quality *** Five studies reporting on 72 patients were *** studies investigated the use of RRVP-assisted BAV in infants(>1 mo)and older children,but not in ***(13.9%)patients had a history of some type of aortic valve surgical or catheterization *** BAV,58(84.0%),7(10.1%),4(5.9%)patients had AR grade 0(none),1(trivial),2(mild),*** BAV,34(49.3%),6(8.7%),26(37.7%),3(4.3%),patients had AR grade 0,1,2,and 3(moderate),*** patient developed severe AR after ***(1.4%)developed ventricular fibrillation and was defibrillated *** additional arrhythmias or complications occurred during *** RRVP can be safely used to achieve balloon stability during pediatric BAV,which could potentially decrease AR rates.

关键词： Congenital aortic stenosis Rapid right ventricular pacing Balloon aortic valvuloplasty Congenital heart disease Systematic review Aortic regurgitation

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Suppression of Pyrite Oxidation by Surface Silica Coating

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Journal of Geoscience and Environment Protection 2014年第4期2卷 37-43页

作者： K. Kollias E. mylona K. Adam N. Papassiopi N. Papassiopi A. Xenidis School of Mining and Metallurgical Engineering National Technical University of Athens Athens Greece

The exposure of pyrite (FeS2) to atmospheric conditions during mining activity causes a series of complex oxidation reactions, resulting to acid generation and the subsequent release of toxic heavy metals in the surrounding aquatic and terrestrial ecosystems. The produced acidic mine waters, known as acid mine drainage (AMD), constitute one the major environmental problems of both operating and abandoned mixed sulphide, coal and other mine sites where sulphidic minerals are encountered. A sustainable approach to the environmentally safe pyrite-bearing extractive waste management is related to the prevention of oxidation by developing artificial coatings on the pyrite surfaces. In this study, experiments performed to study the conditions of the silica coating formation on the FeS2 particles contained in a pyrite concentrate are presented. Batch tests involving the treatment of pyrite samples with a coating solution, consisting of Na2SiO3, H2O2 and buffered pH, were performed under a liquid to solid ratio (L/S) 100 l/kg. The effect of parameters including SiO2 concentration (5 - 50 mM), pH values (5.0 - 8.0) and contact time up to 24 hours, was investigated. Parameters examined to monitor the silica coating formation process include analysis of Fe, Si, ?and H2O2 in the aqueous phase. Scanning electron microscopy with energy dispersive spectrometry (SEM/EDS) was used for the examination of the chemically modified surfaces of silica-treated pyrite samples.

关键词： Acid Mine Drainage Mine Wastes Pyrite Silica Coating

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员工视角下的公共部门人力资源开发实践:组织和主管支持的作用

国际行政科学评论（中文版）

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国际行政科学评论（中文版） 2022年第3期 147-166页

作者：伊万杰里亚·米洛纳迪米特里奥斯·米哈伊尔邢蓉(译) 刘军仪(审校) 希腊塞萨洛尼基马其顿大学工商管理系希腊马其顿大学马其顿大学人力资源管理实验室中国人事科学研究院教育培训与能力建设研究室不详

本文采用了当前公共部门研究中所缺乏的来自员工层面的视角,并回应了对于影响公职人员工作态度和工作行为的因素开展进一步研究的呼吁。基于对公务员的调查,本研究探讨了员工感知的发展投入的前因后果。我们的研究表明,组织支持在员工... 详细信息

本文采用了当前公共部门研究中所缺乏的来自员工层面的视角,并回应了对于影响公职人员工作态度和工作行为的因素开展进一步研究的呼吁。基于对公务员的调查,本研究探讨了员工感知的发展投入的前因后果。我们的研究表明,组织支持在员工对发展的看法上具有重要作用。此外,主管的支持在组织支持和员工感知的发展投入之间扮演着中介角色。这一发现揭示了主管作为组织代理人的作用。此外,与工作需求—资源模型和社会交换理论相一致,我们发现,在一个提供大量培训和发展激励的工作场所中,公职人员更有可能表现出更高层级的组织承诺和组织公民行为。员工感知的发展投入在组织支持和员工绩效之间,以及在主管支持和员工绩效之间,均扮演着关键的中介角色。

关键词：员工态度员工行为员工感知的发展投入组织支持感主管支持感公共管理

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