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are scorpion stings the new public health threat for southeast Turkey and northern Syria after the earthquakes?An emphasis on Leiurus quinquestriatus

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Journal of Acute Disease 2023年第4期12卷 131-132页

作者： mehmet uçar Department of Medical Services and Techniques MuşAlparslan UniversityMuşTurkey

In tropical countries,scorpion sting is a significant cause of disease,leading to severe localized cutaneous reactions,neurologic impairments,and respiratory distress,as well as myocarditis[1].The world’s most poisonous scorpion species,Leiurus quinquestriatus,is found in southern Turkey and is a threat to the public’s health in all of the provinces,particularly in Adiyaman and its surrounding areas,which were hit by the recent Turkey and Syria earthquake[1].

关键词： southeast earthquake tropical

A public health perspective on dengue in Bangladesh in the twenty-first century

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Journal of Acute Disease 2023年第6期12卷 255-256页

作者： mehmet uçar Department of Medical Services and Techniques Varto Vocational SchoolMuşAlparslan UniversityMuşTurkey

Infectious diseases have accompanied human history from time *** the 21st century,we have witnessed striking pandemics such as severe acute respiratory syndrome,middle east respiratory syndrome,malaria,and coronavirus... 详细信息

关键词： respiratory acute diseases

Stress perceptions of nurses serving in home healthcare services during the COVID-19 pandemic:A qualitative research

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Journal of Acute Disease 2023年第2期12卷 73-79页

作者： arzu Karakaya mehmet ucar Department of Psychiatric Nursing MuşAlparslan UniversityVocational School of Health ServicesMuşTurkey Department of Public Health Nursing MuşAlparslan UniversityVocational School of Health ServicesMuşTurkey

Objective:To investigate the stress perceptions of nurses serving in home healthcare services during ***:This study was qualitative research with a phenomenological *** were collected and recorded through in-depth interviews with 6 nurses working in MuşState Hospital,Home Healthcare Services unit using a form consisting of 12 questions on an online platform between May 2021 and July *** audio recordings were transcribed by the researcher and content analysis was performed by creating codes,categories,and ***:The interviews yielded 10 categories and 59 *** codes were addressed under the theme of"COVID-19 pandemic".under this main theme,nurses expressed the problems they experienced in issues such as stress,support mechanisms,and family and social problems during *** mentioned that they experienced high stress in this process,as well as social isolation and negative thoughts of society about them and that they could not spare time for themselves and their ***:Nurses working in home healthcare services frequently express negativities such as high stress,isolation from society,and increased ***,actions should be taken to raise awareness of society on these issues,increase the number of personnel,conduct more research,and share the results with the public.

关键词： Home Healthcare Services COVID-19 Nurse Stress Social isolation Workload

Robust Backstepping Control of a Quadrotor unmanned Aerial Vehicle under Colored Noises

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Computers, Materials & Continua 2025年第1期82卷 777-798页

作者： mehmet Karahan Electrical and Electronic Engineering Department Atilim UniversityAnkara06830Turkey

Advances in software and hardware technologies have facilitated the production of quadrotor unmanned aerial vehicles(uAVs).Nowadays,people actively use quadrotor uAVs in essential missions such as search and rescue,counter-terrorism,firefighting,surveillance,and cargo *** performing these tasks,quadrotors must operate in noisy ***,a robust controller design that can control the altitude and attitude of the quadrotor in noisy environments is of great *** researchers have focused only on white Gaussian noise in their studies,whereas researchers need to consider the effects of all colored noises during the operation of the *** study aims to design a robust controller that is resistant to all colored ***,a nonlinear quadrotormodel was created with ***,a backstepping controller resistant to colored noises was *** backstepping controller was tested under Gaussian white,pink,brown,blue,and purple *** and Lyapunov-based controller designswere also carried out,and their time responses(rise time,overshoot,settling time)were compared with those of the backstepping *** the simulations,time was in seconds,altitude was in meters,and roll,pitch,and yaw references were in *** and settling time values were in seconds,and overshoot value was in *** the obtained values are examined,simulations prove that the proposed backstepping controller has the least overshoot and the shortest settling time under all noise types.

关键词： Backstepping control colored noises Gaussian noise Lyapunov stability quadrotor robustness PID control

△_(h)-GOuLD-HOPPER APPELL POLYNOMIALS

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Acta Mathematica Scientia 2021年第4期41卷 1196-1222页

作者： mehmet Ali ÖZarSLAN Banu YILMAZ YASar Department of Mathematics Eastern Mediterranean UniversityFamagustaNorth Cyprus via Mersin 10Turkey

In this paper,we introduce the △_(h)-Gould-Hopper Appell polynomials An(x,y;h)via h-Gould-Hopper polynomials G_(n)^(h)(x,y).These polynomials reduces to △_(h)-Appell polynomials in the case y=0,△-Appell polynomials in the case y=0 and h=2D-Appell polynomials in the case h→0,2D △-Appell polynomials in the case h=1 and Appell polynomials in the case h→0 and y=*** obtain some well known main properties and an explicit form,determinant representation,recurrence relation,shift operators,difference equation,integro-difFerence equation and partial difference equation satisfied by *** satisfied by △_(h)-Gould-Hopper Appell polynomials reduce to determinant of all subclass of the usual ***,shift operators and difference equation satisfied by these polynomials reduce to recurrence,shift operators and difference equation of △_(h)-Appell polynomials,△-Appell polynomials;recurrence,shift operators,differential and integro-differential equation of 2D-Appell polynomials,recurrence,shift operators,integrodifference equation of 2D △-Appell polynomials,recurrence,shift operators,differential equation of Appell polynomials in the corresponding *** the special cases of the determining functions,we present the explicit forms,determinants,recurrences,difference equations satisfied by the degenerate Gould-Hopper Carlitz Bernoulli polynomials,degenerate Gould-Hopper Carlitz Euler polynomials,degenerate Gould-Hopper Genocchi polynomials,△_(h)-Gould-Hopper Boole polynomials and △_(h)-Gould-Hopper Bernoulli polynomials of the second *** particular cases of the degenerate Gould-Hopper Carlitz Bernoulli polynomials,degenerate Gould-Hopper Genocchi polynomials,△_(h)-Gould-Hopper Boole polynomials and △_(h)-Gould-Hopper Bernoulli polynomials of the second kind,corresponding determinants,recurrences,shift operators and difference equations reduce to all subclass of degenerate so-called families except for Genocchi polynomials recurrence,shift operators,an

关键词： △_(h)-Appell polynomials determinant recurrence difference equation

Prediction of mine drainage generation potential and the prevention method of the groundwater pollution in the Gümüskoy(Kütahya)mineralization area,NW Turkey

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Journal of Mountain Science 2020年第10期17卷 2387-2404页

作者： Selcuk ALEMDAG Enver AKarYALI mehmet Ali GuCER Department of Geological Engineering Faculty of Engineering and Natural SciencesGumusşhane UniversityGumushane29100Turkey

One of the leading factors of seepage contamination is mine drainage,which creates serious ecological risks on the environment both during operation and post-mining *** this study,experimental processes have been carried out to determine the occurrence of mine drainage in the Gümüskoy(Kütahya)mineralization area(Northwest Turkey).The prevention method for potential mine drainage occurrence has been also *** enrichment was observed which are directly related to mineralization in trace element concentrations,especially in potentially toxic metals such as Ag,Cd,Mo,Ba,Bi,and *** on short-term tests,mine drainage formation has not been expected according to the p H(7.36-9.38),contact leaching,and acid-base accounting ***,in the long-term,acid generation potential has been expected because of weathering and oxidation in terms of rock type and mineralization in the ***,in order to prevent groundwater contamination in the event of a possible formation of mine drainage,the hydraulic conductivity of the stock area bedrock was evaluated by the in situ tests performed in the field and it was found to be moderately permeable(K=1.9×10^-6 m/s).In order to make the stock area bedrock impermeable,natural clay will be laid and compressed at the base of the stock *** the finite elements were modeled by seepage analysis,the seepage discharge to be formed on the base rock at a depth of 5 m was determined as 3.17×10^-19 m^3/*** the discharge value determined in the seepage analysis after modeling is very close to zero,contamination of possible ground and surface water will be prevented.

关键词： Ecological risks Environmental assessment Mine drainage Seepage analysis

Fuzzy rule based seismic risk assessment of one-story precast industrial buildings

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Earthquake Engineering and Engineering Vibration 2019年第3期18卷 631-648页

作者： mehmet Palanci Istanbul arel university Department of Civil Engineering

Effi cient tools capable of using uncertain data to produce fast and approximate results are more practical in rapid decision-making applications when compared to conventional methods. From this point of view, this study introduces a risk assessment model for one-story precast industrial buildings by fuzzy logic which builds a bridge between uncertainty and precision. The input, output and relations of the fuzzy based risk assessment model (FBRAM) were determined by reference buildings. The Monte Carlo simulation method was used to handle uncertainties associated with the structural characteristics of the reference buildings. Section dimension, longitudinal reinforcement ratio, column height related to building elevation, confi nement ratio and seismic hazard are regarded as input and the plastic demand ratio is considered as the output parameter by the mathematical formulation of strength and deformation capacity of the buildings. The supervised learning method was used to determine the membership function of fuzzy sets. Fuzzy rules of FBRAM were constructed from Monte Carlo simulation by mapping of inputs and output. FBRAM was evaluated by a group of simulated buildings and two existing precast industrial buildings. Comparisons have shown signifi cant agreement with analytical model results in both cases. Consequently, it is anticipated that the proposed model can be used for the seismic risk mitigation of precast buildings.

关键词： fuzzy logic supervised learning precast buildings risk assessment Monte Carlo simulation

Two-and three-dimensional stability analysis of underground storage caverns in soft rock(Cappadocia, Turkey) by finite element method

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Journal of Mountain Science 2022年第4期19卷 1182-1202页

作者： SarI mehmet Department of Mining Engineering Aksaray UniversityAksaray 68100Turkey

Engineering design in soft rocks and its stability analysis exerts many challenges to rock engineers. Many engineering works in Turkey’s Cappadocia region must face and tackle the existing sites covered by the soft rocks. This study is aimed to examine the stability condition of a typical underground storage cavern(uSC) excavated in a soft rock in this region. For this purpose, two-and threedimensional stability analyses of the uSCs were performed using the finite element method(FEM).Because of the inherent difficulty in characterizing soft/weak rock masses in the region using traditional classification systems, the stability of a typical uSC was evaluated by representing the rock mass condition with two distinct scenarios in FEM *** these structures were unstable according to the 2D analysis conducted in RS2 software in the worstcase scenario, they were stable in the 3D analysis using RS3 software in both scenarios. Besides,feasible cover depths were examined to assess their possible effects on the factor of safety and deformation measurements. It was found that 15 m seems to be an optimal depth for excavating a typical uSC in the soft rocks exposed in the region. The 3D FEM results provide valuable information to optimize the future planning and preliminary design of uSCs.

关键词： underground storage cavern Numerical modeling Soft rock FEM analysis Rock mass failure

Evaluating rockfalls at a historical settlement in the Ihlara Valley(Cappadocia, Turkey) using kinematic, numerical, 2D trajectory, and risk rating methods

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Journal of Mountain Science 2022年第12期19卷 3346-3369页

作者： SarI mehmet Department of Mining Engineering Aksaray UniversityAksaray68100Turkey

Rockfalls are one of the most dangerous natural events in hilly terrains, and they substantially threaten residential areas and transport corridors in these environments. This study is aimed to analyze the risk of rockfall from a slope to nearby houses in a historical settlement with past rockfall histories. It contains numerous applications to study rockfall danger from different points of view(e.g., kinematics,numerical stability analysis, risk assessment, 2D trajectory). The rockfall kinematics revealed the statistics for different structurally controlled failure modes among the surveyed slope discontinuities,especially wedge type and block toppling were the most significant ones. Finite element analysis showed that the slope was stable under the natural condition with a safety factor of 2.19. The rockfall risk rating system calculated a medium risk for the houses downstream. Based on the field measurements, a possible rockfall profile was determined and located as an input in the 2D rockfall trajectory program. The rigid-body impact model runs utilized various shapes and sizes of blocks to simulate the rockfall events realistically. According to the 2D trajectory model results, there was no rockfall danger for the investigated downslope houses. The study showed the importance of using different analysis techniques to solve rockfall risk in protected areas based on scientific and rational approaches.

关键词： Belisirma village Cappadocia region Rockfall kinematics 2D rockfall trajectory analysis Rockfall risk rating system FEM modeling