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Recurring heavy rainfall resulting in degraded-upgraded phases in soil microbial networks that are reflected insoil functioning

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Soil Ecology Letters 2023年第3期5卷 75-88页

作者： George P.Stamou nikolaos monokrousos Anastasia Papapostolou Effimia M.Papatheodorou Department of Ecology School of BiologyAristotle UniversityThessaloniki 54124Greece University Center of International Programmes of Studies International Hellenic UniversityThessaloniki 57001Greece

Biological soil crusts(BSCs)are an important multi-trophic component of arid ecosystems in the Mediterranean *** a mesocosm experiment,the authors investigated how the network of interactions among the members of the soil microbial communities in four types of soil sample responded when soils were exposed to two simulated extreme rain *** four types of soil samples were:covered by Cladonia rangiformis and previously hydrated(+BSC+H),covered by *** and dried(+BSC-H),uncovered and hydrated(-BSC+H),uncovered and dried(-BSC-H).Network analysis was based on the co-occurrence patterns of microbes;microbes were assessed by the phospholipid fatty acids *** authors further explored the relations between networks’metrics and soil functions denoted by enzymatic activity and soil chemical *** networks exhibited Small world properties,moderate values of clustering coefficient and eigen centrality,indicating the lack of hub *** networks in-BSC-H soils appeared coherent during the pre-rain phases and they became modular after rains,while those in+BSC-H soils kept their connectivity till the second rain but this then *** network metrics that were indicative of cohesive networks tended to be related to enzyme activity while those that characterized the loose networks were related to Ca,K,Mg,NH_(4)^(+) and organic *** all mesocosms except for+BSC-H,networks’fragmentation after the second heavy rain was milder than after the first one,supporting the idea of community *** response of microbial networks to heavy rains was characterized by the tendency to exhibit degradation-reconstruction *** network collapse in the crusted only mesocosms showed that the communities beneath crusts in arid areas were extremely vulnerable to recurring heavy rain events.

关键词： PLFAs Cladonia rangiformis biocrust soil microbial community network metrics

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Polyamide nylon 6 microplastics enhance nitrification activity in two agricultural soils

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Pedosphere 2024年第6期34卷 1158-1162页

作者： Areti NTAVIGLAKI Vasileios A.TZANAKAKIS Georgios GIANNOPOULOS Angeliki MARAGKAKI Ioannis ANASTOPOULOS Pantelis BAROUCHAS Ioannis PASHALIDIS nikolaos monokrousos Department of Agriculture School of Agricultural Sciences Hellenic Mediterranean University School of Agriculture Aristotle University of Thessaloniki Department of Agriculture University of IoanninaUo I Kostaki Campus Department of Agriculture University of Patras Theodoropoulou Terma Department of Chemistry University of Cyprus School of Humanities Social Sciences and Economics University Center of International Programmes of Studies International Hellenic University

Dear Editor,Microplastics are plastic debris with a maximum size of5 mm, and their presence in terrestrial and aquatic ecosystems may affect environmental quality, living organisms, and human health(Zhou et al., 2020). Due to their physical and chemical properties, microplastics in soils may interact with naturally occurring inorganic and organic compounds(Zhou et al., 2020) for longer periods, affecting soil microorganisms and their activities, such as nitrogen(N) cycling(Qian et al.,2018).

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Ancient European Lakes: Reservoirs of Hidden Microbial Diversity? The Case of Lake Pamvotis (NW Greece)

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Open Journal of Ecology 2018年第10期8卷 537-578页

作者： Anastasia Touka Katerina Vareli Maria Igglezou nikolaos monokrousos Dimitrios Alivertis John M. Halley Sotiris Hadjikakou Stathis Frillingos Ioannis Sainis Interscience Molecular Oncology Laboratory (iMol) Cancer Biobank Center (UICBC) University of Ioannina Ioannina Greece Department of Biological Applications and Technology School of Health Sciences University of Ioannina Ioannina Greece Department of Chemistry Section of Inorganic and Analytical Chemistry University of Ioannina Ioannina Greece Department of Medicine School of Health Sciences Laboratory of Biological Chemistry University of Ioannina Ioannina Greece

Ancient European lakes are clustered within a radius of 300 km around Lake Ohrid. Information concerning microbial diversity in these lakes is limited. We studied diversity of the dominant prokaryotic phylotypes in the sediments in one of these lakes, known as Lake Pamvotis. The analysis was performed in samples from two stations for four seasons of the same year. DNA extraction followed by PCR amplification (16S rDNA), Denaturing Gradient Gel Electrophoresis, cloning and sequencing was applied in order to reveal the sequence signatures of the dominant bacterial and archaeal phylotypes. Bacterial and archaeal cell numbers were quantified by real-time PCR. Several environmental variables measured in parallel, including pH, Nickel, Chromium, Arsenic, Calcium, Total Nitrogen and Total Carbon, were found to affect strongly the prokaryotic abundances. Most of the identified sequences of Bacteria belong to Proteobacteria and most of the sequences of Archaea belong to Euryarchaeota. The great majority of these bacterial (84.21%) and archaeal sequences (95.65%) have no cultivated counterparts in the databases. In addition, many of these bacterial (50.88%) and archaeal sequences (20.65%) correspond to potentially new species. Six of the bacterial sequences constitute a new class of Cyanobacteria which we have named “Lake Pamvotis cluster” (LPC). Our findings highlight Lake Pamvotis as a habitat for several previously unidentified species of Bacteria and Archaea.

关键词： Ancient Lakes Lake Pamvotis Bacteria Archaea

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Machine learning applications in healthcare clinical practice and research

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World Journal of Clinical Cases 2025年第1期13卷 16-21页

作者： nikolaos-Achilleas Arkoudis Stavros P Papadakos Research Unit of Radiology and Medical Imaging School of MedicineNational and Kapodistrian University of AthensAthens 11528Greece 2^(nd)Department of Radiology “Attikon”General University HospitalMedical SchoolNational and Kapodistrian University of AthensChaidari 12462Greece Department of Gastroenterology Laiko General HospitalNational and Kapodistrian University of AthensAthens 11527Greece

Machine learning(ML)is a type of artificial intelligence that assists computers in the acquisition of knowledge through data analysis,thus creating machines that can complete tasks otherwise requiring human *** its various applications,it has proven groundbreaking in healthcare as well,both in clinical practice and *** this editorial,we succinctly introduce ML applications and present a study,featured in the latest issue of the World Journal of Clinical *** authors of this study conducted an analysis using both multiple linear regression(MLR)and ML methods to investigate the significant factors that may impact the estimated glomerular filtration rate in healthy women with and without non-alcoholic fatty liver disease(NAFLD).Their results implicated age as the most important determining factor in both groups,followed by lactic dehydrogenase,uric acid,forced expiratory volume in one second,and *** addition,for the NAFLD-group,the 5th and 6th most important impact factors were thyroid-stimulating hormone and systolic blood pressure,as compared to plasma calcium and body fat for the NAFLD+***,the study's distinctive contribution lies in its adoption of ML methodologies,showcasing their superiority over traditional statistical approaches(herein MLR),thereby highlighting the potential of ML to represent an invaluable advanced adjunct tool in clinical practice and research.

关键词： Machine Learning Artificial Intelligence Clinical Practice Research Glomerular filtration rate Non-alcoholic fatty liver disease Medicine

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Musculoskeletal disorders in nursing staff

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World Journal of Methodology 2025年第2期15卷 9-14页

作者： Agapi Kolovou Asterios N Gkougkoulias nikolaos Stefanou Elena Manuela Samaila Maria Tsekoura Marianna Vlychou Charalampos Matzaroglou Zoe H Dailiana Department of Orthopaedic Surgery Faculty of MedicineSchool of Health SciencesUniversity of ThessalyLarissa 41500ThessaliaGreece Department of Radiology Faculty of MedicineSchool of Health SciencesUniversity of ThessalyLarissa 41500ThessaliaGreece Orthopaedic and Trauma Center University of VeronaVerona 37134Italy Department of Physiotherapy School of Health Rehabilitation SciencesUniversity of PatrasPatra 26504DytikíElládaGreece

Nursing staff provides patient care in an occupational environment that often imposes challenges that affect significantly the musculoskeletal ***-related musculoskeletal disorders are common in nursing stuff and have a negative impact in their professional and daily *** the current editorial,the duties of nursing staff,the types of musculoskeletal disorders,the predis-posing factors(including factors related to professional tasks/ergonomics and to working schedules,psychological,social and individual factors)and their impact on working ability and quality of life nursing staff are summarized and pre-ventive measures are proposed.

关键词： Musculoskeletal disorders Nursing staff Predisposing factors Ergonomics Prevention

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Quantum Stirling heat engine with squeezed thermal reservoir

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Chinese Physics B 2023年第10期32卷 392-399页

作者： nikolaos Papadatos Department of Physics University of Patras26500 Greece

We analyze the performance of a quantum Stirling heat engine(QSHE), using a two-level system and a harmonic oscillator as the working medium, that is in contact with a squeezed thermal reservoir and a cold reservoir. First, we derive closed-form expressions for the produced work and efficiency, which strongly depend on the squeezing parameter rh. Then, we prove that the effect of squeezing heats the working medium to a higher effective temperature, which leads to better overall performance. In particular, the efficiency increases with the degree of squeezing, surpassing the standard Carnot limit when the ratio of the temperatures of the hot and cold reservoirs is small. Furthermore, we derive the analytical expressions for the efficiency at maximum work and the maximum produced work in the high and low temperature regimes,and we find that at extreme temperatures the squeezing parameter rhdoes not affect the performance of the QSHE. Finally,the performance of the QSHE depends on the nature of the working medium.

关键词： quantum heat engine open systems thermodynamics performance characteristics

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Spatial analysis and evaluation of a coal deposit by coupling AHP & GIS techniques

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International Journal of Mining Science and Technology 2019年第6期29卷 943-953页

作者： nikolaos Paraskevis Christos Roumpos nikolaos Stathopoulos Aikaterini Adam Department of Mining Engineering Public Power Corporation of GreeceAthens 10432Greece School of Mining and Metallurgical Engineering National Technical University of AthensAthens 15780Greece

Nowadays,the evaluation of coal deposits becomes crucial,due to many uncontrollable factors,which affect the energy sector.A comparative evaluation of coal deposits is essential for their hierarchical classification regarding their sustainable exploitation,when compared to other coal deposits or competitive fuels,which may be used as alternative solutions for electricity *** this paper,a method for spatial analysis and evaluation of a lignite deposit is proposed,by creating four spatial key indicators via GIS analysis,which are then aggregated by applying a weighted linear *** analytical hierarchy process is applied to estimate the relative weights of the indicators,in order to perform a weighted cartographic *** the synthesis of the indicators,an overall,total spatial quality indicator is *** weighted analysis was shown to be more effective compared to the unweighted one,because it can provide more reliable results regarding the exploitation of the examined lignite *** implementation of GIS-based analytical hierarchy process in spatial analysis and evaluation of lignite deposits,in terms of sustainable exploitation,demonstrates that this method can be extensively applied for evaluating the economic potential of mineral deposits.

关键词： Lignite/coal deposit Spatial analysis Evaluation Cartographic overlay Analytical hierarchy process Geographic information systems Weighted linear combination(WLC) Weighted spatial quality indicator(WSQI)

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Second Order Nonlinear Evolution Inclusions Ⅱ： Structure of the Solution Set

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Acta Mathematica Sinica,English Series 2006年第1期22卷 195-206页

作者： nikolaos S. PAPAGEORGIOU nikolaos YANNAKAKIS National Technical University Department of Mathematics Zografou Campus Athens 157 80 Greece

We contimle the work initiated in [1] （Second order nonlinear evolution inclusions I： Existence and relaxation results. Acta Mathematics Science, English Series, 21（5）, 977-996 （2005）） and study the structural properties of the solution set of second order evolution inclusions which are defined in the analytic framework of the evolution triple. For the convex problem we show that the solution set is compact Rs, while for the nonconvex problem we show that it is path connected, Also we show that the solution set is closed only if the multivalued nonlinearity is convex valued. Finally we illustrate the results by considering a nonlinear hyperbolic problem with discontinuities.

关键词： Evolution triple Compact embedding Second order evolution Compact Rs Pathconnected Connected Continuum Hyperbolic problem

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The habitation Model Trend Calculation(MTC):A new effective tool for predictive modeling in archaeology

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Geo-Spatial Information Science 2019年第4期22卷 314-331,I0008页

作者： George Malaperdas nikolaos Zacharias Department of History Archaeology and Cultural Resources ManagementUniversity of PeloponneseKalamataGreece

The aim of this paper is to create and present a new archaeological predictive model via GIS,incorporating what archaeologists consider the most important criterion absent of similar past models,that of critical *** new model suggested in this paper is named habitation Model Trend Calculation(MTC)and is not only integrates the archaeological questions with a critical view,but it can be easily adjusted,according to the conditions or the questions concerning the archaeological ***,it uses new topographical and geomorphological indexes such as Topographical Index(TPI),Hillslope and Landform Classification that give a new sense of the topographical and geomorphological characteristics of the examined area;therefore this model is a more powerful tool compared to older models that did not use new topographical and geomorphological *** success of the created model is checked as a case study in the region of Messenia,Greece during the Mycenaean *** region of Messenia is considered as one of the most important Mycenaean regions of Greece due to the great number and the importance of Mycenaean sites *** the present paper,140 habitation sites were divided into four hierarchical categories(centers,large villages,villages,and farms)based on the extent and the plurality of the tholos tombs that exist in the broader region and according to the hierarchical categorization used by the archaeologists who have studied the *** new predictive model presented in this work can assist in solving a series of criticisms that have been expressed in the previous studies regarding such ***,in the case of Mycenaean Messenia,the model shows excellent results in relation to the habitats of the time.

关键词： GIS Mycenaean Messenia predictive model archaeology habitation Model Trend Calculation(MTC) analytical hierarchy process(AHP) spatial analysis

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Pulmonary involvement and allergic disorders in inflammatory bowel disease

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World Journal of Gastroenterology 2010年第3期16卷 299-305页

作者： nikolaos E Tzanakis Ioanna G Tsiligianni nikolaos M Siafakas Department of Social Medicine & Thoracic Medicine Medical School University of Crete General Practitioner Agia Barvara Health Care Center Department of Thoracic Medicine Medical School University of Crete

Inflammatory bowel disease (IBD) has been associated with either clinical or subclinical airway and parenchymal lung involvement and interstitial lung complications. Several studies have reported that atopy has a high prevalence in IBD patients. Overlapping allergic disorders seem to be present in both the respiratory and gastrointestinal systems. The purpose of this review is to update clinicians on recent available literature and to discuss the need for a highly suspicious approach by clinicians.

关键词： Atopy Inflammatory bowel disease Pulmonary involvement

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