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Articles 781 - 810 of 15024
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Optimal Pollen Viability And Vigor Among Varieties Of Tagnanan Tall Coconut(Cocos Nucifera L.), Xi Yun Liew, Mohd Norsazwan Ghazali, Mohd Firdaus Ismail, Zarina Abd Ghafar, Mohd Syarbani Bin Ismar, Vasudevan Venkatachalam, Uma Rani Sinniah
Optimal Pollen Viability And Vigor Among Varieties Of Tagnanan Tall Coconut(Cocos Nucifera L.), Xi Yun Liew, Mohd Norsazwan Ghazali, Mohd Firdaus Ismail, Zarina Abd Ghafar, Mohd Syarbani Bin Ismar, Vasudevan Venkatachalam, Uma Rani Sinniah
Turkish Journal of Agriculture and Forestry
Controlled pollination, involving the transfer of pollen from Tagnanan Tall palm (male parent) to the Malayan Yellow or Red dwarf (female parent) is essential for producing MATAG coconut hybrids. However, the pollen from Tagnanan Tall (TAGT), usedin hybridization, has been reported to have a germination percentage of less than 40%. This is further complicated by Tagnanan Tall varieties varying in color, TAGT Orange, TAGT Gold, and TAGT Green. TAGT Orange is claimed to have lower pollen viability than TAGT Gold and Green. Hence, a study was conducted to compare inflorescence characteristics, pollen yield, size, viability, and vigor of three Tagnanan …
An Improved Conditional Integrator Sliding Mode Controller Based On Swarm Intelligence For A Magnetic Levitation System, Abdelkader Kerraci, Mohamed Fayçal Khelfi, Zoubir Ahmed-Foitih
An Improved Conditional Integrator Sliding Mode Controller Based On Swarm Intelligence For A Magnetic Levitation System, Abdelkader Kerraci, Mohamed Fayçal Khelfi, Zoubir Ahmed-Foitih
Turkish Journal of Electrical Engineering and Computer Sciences
This paper proposes an enhanced Conditional Integrator Sliding Mode Controller using Particle Swarm Optimization (CISMCPSO) for a magnetic levitation system (MLS). The main advantage of this controller is its robustness to uncertainties and disturbances, which also avoids chattering and ensures zero static steady-state error. The main idea of CISMCPSO is to activate its integral action only when the sliding surface reaches the boundary layer while it is reduced to zero or close to zero elsewhere, which avoids destroying the transient response caused by the conventional integral sliding-mode controller. A particle swarm optimization algorithm schedules the conditional integral term parameter of …
Uniform 3d Scattering Point Model For Simulating The Dynamic Radar Echo From Wind Farm, Bo Tang, Zhendong Zhu, Zhiyu Shang, Huanghai Xie, Feng Wang, Jiaxu Chen
Uniform 3d Scattering Point Model For Simulating The Dynamic Radar Echo From Wind Farm, Bo Tang, Zhendong Zhu, Zhiyu Shang, Huanghai Xie, Feng Wang, Jiaxu Chen
Turkish Journal of Electrical Engineering and Computer Sciences
The calculation scale of simulating wind farm dynamic radar echo is gradually growing with the increasing scale of wind farms, which can hardly meet the requirements of real-time radar echo simulation. Considering that the method of surface element division can greatly influence the result of simulation, uniform surface element division is applied to accelerate the traditional simulation algorithm based on the refined 3D scattering point model and enhance the main characteristics of the radar echo. The solution time of dynamic radar echoes from 1-8 wind turbines is calculated to test the average speed that the uniform 3D scattering point model …
Developing Linguistic Patterns To Mitigate Inherent Human Bias In Offensive Language Detection, Toygar Tanyel, Besher Alkurdi, Serkan Ayvaz
Developing Linguistic Patterns To Mitigate Inherent Human Bias In Offensive Language Detection, Toygar Tanyel, Besher Alkurdi, Serkan Ayvaz
Turkish Journal of Electrical Engineering and Computer Sciences
With the proliferation of social media, there has been a sharp increase in offensive content, particularly targeting vulnerable groups, exacerbating social problems such as hatred, racism, and sexism. Detecting offensive language use is crucial to prevent offensive language from being widely shared on social media. However, the accurate detection of irony, implication, and various forms of hate speech on social media remains a challenge. Natural language-based deep learning models require extensive training with large, comprehensive, and labeled datasets. Unfortunately, manually creating such datasets is both costly and error-prone. Additionally, the presence of human-bias in offensive language datasets is a major …
A Cascade Genetic Algorithm Based Adaptive Backstepping Impedance Control For Upper Limb Rehabilitation Robot, Mawloud Aichaoui, Ameur Ikhlef
A Cascade Genetic Algorithm Based Adaptive Backstepping Impedance Control For Upper Limb Rehabilitation Robot, Mawloud Aichaoui, Ameur Ikhlef
Turkish Journal of Electrical Engineering and Computer Sciences
This paper proposes a novel cascade impedance control architecture designed for the upper limb exoskeleton rehabilitation robot. The proposed architecture comprises two parts: Firstly, the impedance reference trajectory is shaped from the desired trajectory utilizing the desired impedance model and feedback contact torques. The second part of the proposed controller is an adaptive backstepping control, responsible for tracking the generated impedance reference trajectory. Notably, the proposed adaptive backstepping impedance controller is non-model-based control approach, eliminating the need for the robot's model. Furthermore, a genetic algorithm is employed as an offline tuning method for the inner position loop controller, namely the …
A New Dxccdita Based Meminductor Emulator And Its Application In Chaotic Oscillator, Bhawna Aggarwal, Shireesh Kumar Rai, Harsh Jain
A New Dxccdita Based Meminductor Emulator And Its Application In Chaotic Oscillator, Bhawna Aggarwal, Shireesh Kumar Rai, Harsh Jain
Turkish Journal of Electrical Engineering and Computer Sciences
This work introduces a new dual-X current conveyor differential input transconductance amplifier (DXCCDITA) based meminductor emulator, alongside its application in chaotic oscillator has also been presented. To realize the designed meminductor emulator, one DXCCDITA, two resistors, and two capacitors are employed. Pinched hysteresis loops are achieved across a wide frequency range spanning from 100 Hz to 1.5 MHz, encompassing both decremental and incremental topologies. Additionally, the proposed circuit offers the flexibility to switch between incremental and decremental configurations using a simple switch. Through examination of non-volatility and transient responses, the efficiency of the presented emulator is evidently demonstrated. To further …
A Surface-Based Approach For 3d Approximate Convex Decomposition, Onat Zeybek Kuşkonmaz, Yusuf Sahi̇lli̇oğlu
A Surface-Based Approach For 3d Approximate Convex Decomposition, Onat Zeybek Kuşkonmaz, Yusuf Sahi̇lli̇oğlu
Turkish Journal of Electrical Engineering and Computer Sciences
Approximate convex decomposition enables the simplification of complex shapes into manageable convex components. In this work, we propose a novel surface-based method to achieve this which leads to efficient computation times and sufficiently convex results while avoiding over-approximating the input model. We start approximation using mesh simplification. Then we iterate over the surface polygons of the mesh and divide them into convex groups. We utilize planar and angular equations to determine suitable neighboring polygons for inclusion in forming convex groups. To ensure our method outputs a sufficient result for a wide range of input shapes, we run multiple iterations of …
Lgformer: Informer-Based Personalized Modeling For Blood Glucose Prediction, Xue Yuewei, Shaopeng Guan, Jia Wanhai
Lgformer: Informer-Based Personalized Modeling For Blood Glucose Prediction, Xue Yuewei, Shaopeng Guan, Jia Wanhai
Turkish Journal of Electrical Engineering and Computer Sciences
Effective diabetes management relies on precise prediction of blood glucose levels to minimize complications. However, the patterns and fluctuations in blood glucose vary significantly among patients, posing a challenge for existing prediction methods. Many current approaches fail to accommodate these individual differences, leading to less reliable predictions. In response to this challenge, we present LGformer, a novel prediction model based on the Informer architecture, designed to enhance both flexibility and accuracy. LGformer improves upon Informer by integrating LSTM and GRU layers into its probSparse Self-attention mechanism, allowing for personalized processing of blood glucose data tailored to each patient's unique profile. …
In-Situ Superconductor Temperature Sensor For Cryogenic Integrated Circuits, Emre Küçükyilmaz, Nazi̇f Orhun Tekci̇, Sasan Razmkhah, Ali̇ Bozbey
In-Situ Superconductor Temperature Sensor For Cryogenic Integrated Circuits, Emre Küçükyilmaz, Nazi̇f Orhun Tekci̇, Sasan Razmkhah, Ali̇ Bozbey
Turkish Journal of Electrical Engineering and Computer Sciences
Cryogenic circuits, such as those based on single flux quantum (SFQ) logic, function at extremely low temperatures. Therefore, the designs target the utilization of liquid helium (LHe) temperatures, maintaining them at 4.2 K. These specialized circuits can be subjected to measurement either within liquid helium (LHe) baths or enclosed within closed-cycle cryocoolers.However, when utilizing LHe in cryocooler systems, inherent weak thermal contact can lead to temperature gradients between the circuit chip and the cold head, where conventional temperature sensors are typically placed. To address this challenge, this study introduces an innovative on-chip temperature sensing approach that capitalizes on the temperature …
Fault Diagnosis Of Photovoltaic Array Based On Gated Residual Network With Multi-Head Self Attention Mechanism, Ahmed Mesai Belgacem, Mounir Hadef, Abdesslem Djerdir
Fault Diagnosis Of Photovoltaic Array Based On Gated Residual Network With Multi-Head Self Attention Mechanism, Ahmed Mesai Belgacem, Mounir Hadef, Abdesslem Djerdir
Turkish Journal of Electrical Engineering and Computer Sciences
Effective fault identification and diagnosis in photovoltaic (PV) arrays is vital for improving the effectiveness, and safety of solar energy systems. While various artificial intelligence methods have successfully established fault detection and diagnosis models, introducing inefficiencies and potentially overlooking useful features. Moreover, these methods often employ neural networks with limited performance capabilities. In response to these challenges, this paper introduces an innovative intelligent model that integrates a combination of a gated residual neural network (GRN) and a multi-head self-attention mechanism (MHSA). To evaluate the proposed fault diagnosis model, the small-scale PV grid system is implemented, and fault simulation experiments, including …
Moment-Based Approximation For Variance Of Semi-Markovian Random Walk With Gamma Distributed Interference Of Chance, Büşra Alakoç, Asli Bektaş Kamişlik, Tülay Yazir, Tahi̇r Khaniyev
Moment-Based Approximation For Variance Of Semi-Markovian Random Walk With Gamma Distributed Interference Of Chance, Büşra Alakoç, Asli Bektaş Kamişlik, Tülay Yazir, Tahi̇r Khaniyev
Turkish Journal of Mathematics
This study proposed moment-based approximations for the expected value and variance of the ergodic distribution of the semi-Markovian random walk process (X(t)) with gamma distributed interference of chance. Many studies have investigated analogous moment problems by using asymptotic approach. The key distinguishing aspect of this study from others in the literature is obtaining Kambo’s approximations for the moments of X(t) instead of asymptotic expansions. Firstly, the approximation formulas for the moments of boundary functional SN(z) of X(t) were obtained. Then using these results, approximation formulas for the first two moments of the ergodic distributions of X(t) were derived. Finally, the …
The Compositions Derived From By Changing Variable In Singular Distributions, Emi̇n Özçağ
The Compositions Derived From By Changing Variable In Singular Distributions, Emi̇n Özçağ
Turkish Journal of Mathematics
In this paper we concern further results of \cite{kn:oz9,kn:oz8} by using the method mainly related to the finite part of divergent integral, in fact we consider the powers for positive integers of the composition of the Dirac delta function and an infinitely differentiable function having any number of distinct multiple roots which will be defined as the neutrix limit of the regular sequence $\delta^k_n(f(x))$. Moreover we show that the powers of the composition $\delta(f(x))$ for negative integers can be also defined via neutrix settings. Some compositions as examples to better understand will be given.
Some Free Boundary Problem Arising In Rock Mechanics, Anvarbek Meirmanov, Koblandy Yerzhanov
Some Free Boundary Problem Arising In Rock Mechanics, Anvarbek Meirmanov, Koblandy Yerzhanov
Turkish Journal of Mathematics
An initial boundary value problem for the in-situ leaching of rare metals with the acid solution in the elastic skeleton is considered. First, we describe physical processes at the microscopic level with a dimensional pore size [[EQUATION]]1 by the model [[EQUATION]], where dynamics of the incompressible solid skeleton is described by the Lamé equations and the physical process in the pore space by the Stokes equations for the incompressible fluid in combination with the diffusion and transport equations for the concentration of acid and product of chemical reactions. Since the solid skeleton changes its geometry upon dissolution, the “pore space …
Numerical Solutions Of Sird Model Of Covid-19 By Utilizing Pell-Lucascollocation Method, Gamze Yildirim, Şuayi̇p Yüzbaşi
Numerical Solutions Of Sird Model Of Covid-19 By Utilizing Pell-Lucascollocation Method, Gamze Yildirim, Şuayi̇p Yüzbaşi
Turkish Journal of Mathematics
This article presents an SIRD model based on the evolution of Coronavirus Disease 2019 (COVID-19) caused by SARS-CoV-2 from the coronavirus family. Firstly, we constitute Pell-Lucas collocation method (PLCM) for this model. According to method, the matrix forms of the Pell-Lucas polynomials (PLPs) are constituted. By utilizing this matrix forms, solution forms and all terms in this model are expressed in matrix form. Thus, PLCM transforms our model into a system of the matrix equations. By solving this system, the approximate solutions are obtained. In addition, the error analysis is also presented. In the examples of this study, we analyzed …
Morpho-Environmental Variability For Scilla L. The Biogeographic Dynamism Under Climate Change Scenarios, João Rocha, Rubén Ramírez-Rodríguez, Francisco Amich, Darinka Gonzalez, Mário Santos, Reinaldo Cajaiba, António L. Crespí
Morpho-Environmental Variability For Scilla L. The Biogeographic Dynamism Under Climate Change Scenarios, João Rocha, Rubén Ramírez-Rodríguez, Francisco Amich, Darinka Gonzalez, Mário Santos, Reinaldo Cajaiba, António L. Crespí
Turkish Journal of Botany
This paper explores the correlations between morphological variability and range dynamics in western Eurasian-Mediterranean flora through a fluctuating asymmetry (FA) perspective across ten climate scenarios. We investigate the potential distribution of Scilla L. and its thermopluviometric correlations, and compare them with other three genera analysed previously, for western Eurasia and northern Africa (Baldellia Parl., Jasione L., and Ononis L. -Viscosae and Natrix sections-), considering past (22 Kyrs), present, and future conditions (2081-2100). By comparing "overlapped areas" (OA) with "non-overlapped areas" (NOA), we found two distinct groups of responses among genera: Scilla show higher morphological variability in NOAs, while Baldellia concentrate …
Responses Of Salvia Nemorosa L. To Silver Nanoparticle And Methyl Jasmonate Stimuli Under Salt Stress, Bi̇lal Andi̇ç, Pinar Orcan
Responses Of Salvia Nemorosa L. To Silver Nanoparticle And Methyl Jasmonate Stimuli Under Salt Stress, Bi̇lal Andi̇ç, Pinar Orcan
Turkish Journal of Botany
The present study evaluated the effects of methyl jasmonate (MeJA) and silver nanoparticles (AgNP) on Salvia nemorosa L. under NaCl stress. To this end, total soluble sugar, total phenolic and flavonoid contents, total antioxidant capacity, H2O2 content, photosynthetic pigment, MDA, and proline contents, and enzymatic antioxidant activities were assessed. When the results for photosynthetic pigment contents were evaluated, the highest levels of total carotenoid content, chlorophyll a, and chlorophyll b were obtained with NaCl + AgNP + MeJA treatment. Under NaCl stress, MDA and H2O2 levels increased, but they decreased when AgNP and MeJA were applied. All treatment groups had …
Stratigraphy And Geochronology Of The Eocene Volcanosedimentary Units In The Hekimhan-Darende (Malatya) Region: Implications For The Development Of The Gürün Curl, Emrah Yalçin Ersoy, Osman Candan, İbrahi̇m Uysal
Stratigraphy And Geochronology Of The Eocene Volcanosedimentary Units In The Hekimhan-Darende (Malatya) Region: Implications For The Development Of The Gürün Curl, Emrah Yalçin Ersoy, Osman Candan, İbrahi̇m Uysal
Turkish Journal of Earth Sciences
We present new radiometric (Ar-Ar) age data from the volcanic rocks occurring in the Eocene strata in the Hekimhan and Gürün-Darende (Malaya) regions. The Eocene units in these regions are represented separately by the Tohma and Darende formations, respectively. The two basaltic volcanic interlayers in the Tohma Formation, occurring in the lower and upper parts of the succession yielded Ar-Ar isochron ages of 51.75±0.76 and 42.66±0.43 Ma, respectively, indicating a deposition age of Ypresian-Lutetian interval for the unit. The andesitic volcanic rocks in the basal parts of the Darende Formation yielded an Ar-Ar isochron age of 37.35±0.72 Ma, revealing that …
Anomalous Crustal Structure Beneath The Örenli-Eğiller Depression Zone, Inferred From Magnetotelluric Studies, Western Anatolia, Türkiye, Dornadula Chandrasekharam, Khasi Raju, Prabhala Bhaskhara Venkata Subba Rao, Alper Baba
Anomalous Crustal Structure Beneath The Örenli-Eğiller Depression Zone, Inferred From Magnetotelluric Studies, Western Anatolia, Türkiye, Dornadula Chandrasekharam, Khasi Raju, Prabhala Bhaskhara Venkata Subba Rao, Alper Baba
Turkish Journal of Earth Sciences
In Türkiye, the prevalence of high radiogenic granites makes them ideal locations for initiating enhanced geothermal system (EGS) projects. One such occurrence of these granites is observed in the Kozak area of the Bergama region. To assess the energy potential of this site, a magnetotelluric (MT) survey was conducted, focusing on determining the depth distribution of the intrusive granite.The survey employed dimensionality analysis, utilizing Bahr skew and phase tensor analyses that denote a 2D subsurface nature up to 100 s and beyond that a 3D nature. In the present study, we interpreted MT data up to 100 s. The data …
Processing Of Pinger, Chirp, Boomer, And Parametric Subbottom Profiler Datasets, Aslihan Nasif
Processing Of Pinger, Chirp, Boomer, And Parametric Subbottom Profiler Datasets, Aslihan Nasif
Turkish Journal of Earth Sciences
Subbottom profiler (SBP) systems are commonly employed for geo-hazard analysis in offshore engineering studies. The joint analysis of multi-channel seismic and SBP data also provides additional information for analyzing submarine fluid-flow structures in shallow sediments. Detailed geo-hazard analyses also aim to reveal small-scale changes in the seafloor and the underlying structures. Therefore, the horizontal and vertical resolution of SBP data is a crucial parameter, and obtaining the necessary resolution requires appropriate data processing.This study analyzes the steps and parameters applied in processing pinger, Chirp, boomer, and parametric SBP data, to determine an optimal data processing flow and parameters. Compared to …
Diversity And Evenness Of Birds During Seasonal Paddy Farming Practice In Southwestern Sarawak, Ivana Berlinda Bilang, Mohamad Fizl Sidq Ramji, Siti Nurlydia Sazali, Andrew Alek Tuen, Wan Nurainie Wan Ismail
Diversity And Evenness Of Birds During Seasonal Paddy Farming Practice In Southwestern Sarawak, Ivana Berlinda Bilang, Mohamad Fizl Sidq Ramji, Siti Nurlydia Sazali, Andrew Alek Tuen, Wan Nurainie Wan Ismail
Turkish Journal of Zoology
The influence of seasonal paddy farming activities on the paddy field environment and its composition of birds could be visually observed but has yet to be systematically studied and is still relatively understudied in Malaysian Borneo. Earlier research relied solely on point counts and not using line transects or mist nets for data collection could have resulted in missing and biased findings. Thus, this study aims to evaluate and compare species diversity and evenness of birds in different paddy stages in southwestern Sarawak with previous studies conducted in the region. We reported a higher species richness than previous reports from …
An Important Species For Black Sea Biodiversity: Some Population Characteristics Ofinvasive Sea Vase (Ciona Intestinalis Linnaeus, 1767) Distributed On The Sinop Shores, Zeki̇ye Bi̇ri̇nci̇ Özdemir, Eylem Aydemi̇r Çi̇l, Süleyman Özdemi̇r, Hünkar Avni̇ Duyar
An Important Species For Black Sea Biodiversity: Some Population Characteristics Ofinvasive Sea Vase (Ciona Intestinalis Linnaeus, 1767) Distributed On The Sinop Shores, Zeki̇ye Bi̇ri̇nci̇ Özdemir, Eylem Aydemi̇r Çi̇l, Süleyman Özdemi̇r, Hünkar Avni̇ Duyar
Turkish Journal of Zoology
This study aims to provide a comprehensive summary of the fundamental biological and certain population characteristics of Ciona intestinalis found along the Black Sea coasts of Turkey. The research was conducted between September 2022 and April 15, 2023, off the Sinop coast of the Black Sea, utilizing samples collected by commercial fishing vessels in the region. A total of 103 specimens of Ciona intestinalis were examined during the study. The average total length, width, and weight of Ciona intestinalis were determined to be 3.614 ± 0.089 cm, 1.967 ± 0.054 cm, and 2.004 ± 0.067 g, respectively. The length-weight relationship …
Determination Of Spermatogenesis Activity Using Lectin Histochemistry In Water Monitorlizards (Varanus Salvator) Harvested From The Wild, Andhika Yudha Prawira, Ni Luh Putu Rischa Phadmacanty, Gono Semiadi, Hellen Kurniati, Wahyu Trilaksono, Nurhidayat Nurhidayat, Savitri Novelina
Determination Of Spermatogenesis Activity Using Lectin Histochemistry In Water Monitorlizards (Varanus Salvator) Harvested From The Wild, Andhika Yudha Prawira, Ni Luh Putu Rischa Phadmacanty, Gono Semiadi, Hellen Kurniati, Wahyu Trilaksono, Nurhidayat Nurhidayat, Savitri Novelina
Turkish Journal of Zoology
Lectin is often used to investigate the differentiation and maturation of spermatogenic cells in the testes of several wild animals, facilitating the screening of mature individuals. Therefore, this study aimed to determine spermatogenesis activity using lectin histochemistry in water monitor lizards harvested from the wild. Testes of 43 comprehensively examined water monitor lizards (Varanus salvator) were collected from slaughterhouses in Palembang (Sumatra) and Banten (West Java), Indonesia, with Snout-Vent Length (SVL) ranging from 39 to 96 cm. Additionally, histologic, histomorphometric, Periodic Acid-Schiff (PAS) staining, and lectin histochemistry (Con A, RCA, WGA, PNA, VVA, DBA, UAE-I) observations were performed. The results …
Not Just Any Tree: The Influence Of Leaf Characteristics On The Nest Site Selection Ofasian Weaver Ants, Amira Aqilah Muhammad, Noorhidayah Mamat, Kien-Thai Yong, Nurul Ashikin Abdullah
Not Just Any Tree: The Influence Of Leaf Characteristics On The Nest Site Selection Ofasian Weaver Ants, Amira Aqilah Muhammad, Noorhidayah Mamat, Kien-Thai Yong, Nurul Ashikin Abdullah
Turkish Journal of Zoology
The connection between plant species and nest site preference for the Asian weaver ant Oecophylla smaragdina remainspoorly understood despite their common occurrence in the urban areas of tropical regions. We predicted that plant species with specificleaf characteristics influence the nesting preference of Asian weaver ants, given that plant foliage is the main component of their neststructure. We studied the leaf characteristics of the tree species in which their nests were detected, including leaf shape, leaf apex shape,and leaf arrangement. Of the 206 total trees among the 20 tree species sampled, 185 trees from 18 tree species had at least one …
Exploring Sustainable Synthesis Paths: A Comprehensive Review Of Environmentally Friendly Methods For Fabricating Nanomaterials Through Green Chemistry Approaches, Vishu Girotra, Pritam Kaushik, Dipti Vaya
Exploring Sustainable Synthesis Paths: A Comprehensive Review Of Environmentally Friendly Methods For Fabricating Nanomaterials Through Green Chemistry Approaches, Vishu Girotra, Pritam Kaushik, Dipti Vaya
Turkish Journal of Chemistry
This comprehensive review delves into the burgeoning field of nanotechnology, where the synthesis of nanoparticles (NPs) is strategically tailored to specific applications. Embracing the principles of Green Chemistry, this approach utilizes environmentally friendly materials, such as plant extracts and microorganisms, as capping or reducing agents and solvents in the synthesis process. Notably, plant-based synthesis demonstrates enhanced stability and faster rates compared to microorganisms. The synthesized materials exhibit unique properties ranging from antimicrobial and catalytic to antioxidant and find applications across diverse fields. Green synthesis processes, characterized by mild conditions in terms of temperature and reagents, stand in stark contrast to …
Photocatalytic Degradation Of Methylene Blue Using Cu2+-Modified Bimetallic Titanium-Based Metal Organic Framework (Mil-125) Photocatalyst With Enhanced Visible Light Activity, Gülsüm Özçeli̇k, Ferda Ci̇van Çavuşoğlu, Şahi̇ka Sena Bayazi̇t, Şeyma Özkara Aydinoğlu
Photocatalytic Degradation Of Methylene Blue Using Cu2+-Modified Bimetallic Titanium-Based Metal Organic Framework (Mil-125) Photocatalyst With Enhanced Visible Light Activity, Gülsüm Özçeli̇k, Ferda Ci̇van Çavuşoğlu, Şahi̇ka Sena Bayazi̇t, Şeyma Özkara Aydinoğlu
Turkish Journal of Chemistry
Cu-modified TiO2 nanoparticles derived from MIL-125 was prepared by solvothermal method for photocatalytic degradation methylene blue under visible light illumination. 2 wt. % Cu2+ ions are integrated into the nodes of MIL-125 framework aiming to boost the photocatalytic performance as well as the physicochemical properties of bare sample. The results showed that incorporation of 2 wt. % Cu2+ ion into MOF framework had significant influences on the crystallographic structure, morphological and optical properties of photocatalytic samples, as well as catalytic activity for methylene blue degradation reaction. The high activity profile of Cu modified TiO2 nanoparticles derived from MIL-125 might be …
Synthesis Of Isocyanate Containing Cryogels For Fast (Bio)Molecular Immobilization, Merve Bat Özmatara, Tuğçe Ni̇hal Gevrek
Synthesis Of Isocyanate Containing Cryogels For Fast (Bio)Molecular Immobilization, Merve Bat Özmatara, Tuğçe Ni̇hal Gevrek
Turkish Journal of Chemistry
Cryogels containing isocyanate reactive groups were synthesized via photopolymerization of 2-isocyanoethyl methacrylate (ICEMA) and poly(ethylene glycol) methyl ether methacrylate (PEGMEMA) monomers. Changing ratio of monomers with respect to each other, series of cryogels with varying ratio of reactive isocyanate groups were successfully prepared. Characterization of the cryogels was carried out using fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), scanning electron microscope (SEM) and rheometry techniques. To demonstrate that molecules containing amine groups can be immobilized onto the synthesized cryogels through the reaction between isocyanate and amine groups, cryogels were conjugated with 4-(trifluoromethyl)benzylamine (TFBA) and fluorescein amine (FLA) molecules, and …
Synthesis, Characterization, And Hirshfeld Surface Analysis Of Coordination Compounds Composed Of Two Different Aminopyridines, Isothiocyanate Ligand Molecules, And Two Different Transition Metal Atoms, Zari̇fe Si̇bel Şahi̇n, Zeki̇ Kartal
Synthesis, Characterization, And Hirshfeld Surface Analysis Of Coordination Compounds Composed Of Two Different Aminopyridines, Isothiocyanate Ligand Molecules, And Two Different Transition Metal Atoms, Zari̇fe Si̇bel Şahi̇n, Zeki̇ Kartal
Turkish Journal of Chemistry
This article successfully describes the synthesis of three coordination compounds formed by the ligands 3-aminopyridine, 4-aminopyridine and isothiocyanate ion with copper atoms and 4-aminopyridine and isothiocyanate ion with cadmium atoms, and their structural characterizations. The crystal structures of the compounds were determined by single crystal XRD technique. According to that technique, the open formulae of these compounds are [Cu(3-aminopyridine)2(NCS)2] (1), [Cu(4-aminopyridine)3(NCS)2] (2) and [Cd(4-aminopyridine)2(NCS)Cl] (3). In addition, the suitability of the structures of the compounds was characterized by elemental analysis, thermal analysis and FT-IR spectroscopy techniques. The SC-XRD analyzes of these coordination compounds showed that the first of these coordination …
Hyoscine-N-Butylbromide In Treating Abdominal Pain Caused By Gastroenteritis: A Double-Blind Randomized Placebo Controlled Study, Çağdaş Yildirim, Gül Pamukçu Günaydin
Hyoscine-N-Butylbromide In Treating Abdominal Pain Caused By Gastroenteritis: A Double-Blind Randomized Placebo Controlled Study, Çağdaş Yildirim, Gül Pamukçu Günaydin
Turkish Journal of Medical Sciences
Background/aimHyoscine-N-Butylbromide (HBB) is an anticholinergic agent widely used to treat pain caused by spasms in the gastrointestinal and urogenital systems. The aim of this study was to compare the efficacy of HBB with placebo in treating abdominal cramping pain caused by acute gastroenteritis in the Emergency Department (ED).Materials and methodsThis was a prospective, double-blind, placebo-controlled, randomized trial conducted in a single-center academic ED, from September to November 2021. Patients aged 18-65 years with acute gastroenteritis symptoms included in the study. The study compared the efficacy of intravenous HBB (20 mg) with placebo. The primary outcome was the absolute change in …
Internalizing Disorders Rather Than Adhd Are Risk Factors For Chronicity In Pediatric Migraine Patients, Nevra Öksüz, Gülen Güler Aksu, Asena Ayça Özdemi̇r, Aynur Özge
Internalizing Disorders Rather Than Adhd Are Risk Factors For Chronicity In Pediatric Migraine Patients, Nevra Öksüz, Gülen Güler Aksu, Asena Ayça Özdemi̇r, Aynur Özge
Turkish Journal of Medical Sciences
Background/aim: Migraine is a prevalent neurological disorder that can lead to disability in children and adolescents. It is frequently accompanied by psychiatric comorbidities, both internalizing and externalizing disorders. While the relationship between migraine and internalizing disorders has been studied, there is limited research on the link between migraine and attention deficit hyperactivity disorder (ADHD).Materials and methods: A total of 280 pediatric headache patients, 107 with externalizing (ADHD) and 173 with internalizing disorders (depression and/or anxiety), were included. The dataset was composed using the Turkish headache database, Mersin Branch. Pain characteristics, associated symptoms, and accompanying comorbidities were evaluated retrospectively.Results: Two hundred …