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  Subjects -> SCIENCES: COMPREHENSIVE WORKS (Total: 374 journals)
Showing 1 - 200 of 265 Journals sorted alphabetically
Accountability in Research: Policies and Quality Assurance     Hybrid Journal   (Followers: 19)
Acta Nova     Open Access   (Followers: 2)
Acta Scientifica Malaysia     Open Access   (Followers: 1)
Acta Scientifica Naturalis     Open Access   (Followers: 4)
Adıyaman University Journal of Science     Open Access  
Advanced Science     Open Access   (Followers: 16)
Advanced Science, Engineering and Medicine     Partially Free   (Followers: 8)
Advanced Theory and Simulations     Hybrid Journal   (Followers: 4)
Advances in Research     Open Access  
Advances in Science and Technology     Full-text available via subscription   (Followers: 18)
African Journal of Science, Technology, Innovation and Development     Hybrid Journal   (Followers: 8)
Afrique Science : Revue Internationale des Sciences et Technologie     Open Access   (Followers: 1)
AFRREV STECH : An International Journal of Science and Technology     Open Access   (Followers: 3)
Alfarama Journal of Basic & Applied Sciences     Open Access   (Followers: 12)
American Academic & Scholarly Research Journal     Open Access   (Followers: 4)
American Journal of Applied Sciences     Open Access   (Followers: 22)
American Journal of Humanities and Social Sciences     Open Access   (Followers: 14)
Anales del Instituto de la Patagonia     Open Access  
Applied Mathematics and Nonlinear Sciences     Open Access   (Followers: 2)
Arab Journal of Basic and Applied Sciences     Open Access  
Arabian Journal for Science and Engineering     Hybrid Journal   (Followers: 1)
Archives Internationales d'Histoire des Sciences     Partially Free   (Followers: 5)
Archives of Current Research International     Open Access  
ARPHA Conference Abstracts     Open Access   (Followers: 1)
ARPHA Proceedings     Open Access  
Asian Journal of Advanced Research and Reports     Open Access  
Asian Journal of Scientific Research     Open Access   (Followers: 2)
Asian Journal of Technology Innovation     Hybrid Journal   (Followers: 5)
Australian Field Ornithology     Full-text available via subscription   (Followers: 1)
Australian Journal of Social Issues     Hybrid Journal   (Followers: 6)
Bangladesh Journal of Scientific Research     Open Access  
Beni-Suef University Journal of Basic and Applied Sciences     Open Access   (Followers: 1)
Berichte Zur Wissenschaftsgeschichte     Hybrid Journal   (Followers: 11)
Bilge International Journal of Science and Technology Research     Open Access  
Bioethics Research Notes     Full-text available via subscription   (Followers: 15)
BJHS Themes     Open Access   (Followers: 5)
Bulletin de la Société Royale des Sciences de Liège     Open Access  
Bulletin of the National Research Centre     Open Access  
Chain Reaction     Full-text available via subscription  
Ciencia Amazónica (Iquitos)     Open Access  
Ciencia en su PC     Open Access   (Followers: 1)
Ciencia Ergo Sum     Open Access  
Ciência ET Praxis     Open Access  
Communications Faculty of Sciences University of Ankara Series A2-A3 Physical Sciences and Engineering     Open Access  
Comunicata Scientiae     Open Access  
Conference Papers in Science     Open Access  
Configurations     Full-text available via subscription   (Followers: 11)
COSMOS     Hybrid Journal   (Followers: 1)
Crea Ciencia Revista Científica     Open Access  
Current Issues in Criminal Justice     Hybrid Journal   (Followers: 14)
Current Research in Geoscience     Open Access   (Followers: 6)
Data     Open Access   (Followers: 4)
Dhaka University Journal of Science     Open Access  
Discover Sustainability     Open Access   (Followers: 4)
Einstein (São Paulo)     Open Access  
Ekaia : EHUko Zientzia eta Teknologia aldizkaria     Open Access  
Emergent Scientist     Open Access  
Enhancing Learning in the Social Sciences     Open Access   (Followers: 8)
Enseñanza de las Ciencias : Revista de Investigación y Experiencias Didácticas     Open Access  
Entramado     Open Access  
Entre Ciencia e Ingeniería     Open Access  
Epiphany     Open Access   (Followers: 1)
Ethiopian Journal of Education and Sciences     Open Access   (Followers: 5)
European Online Journal of Natural and Social Sciences     Open Access   (Followers: 4)
European Scientific Journal     Open Access   (Followers: 11)
Evidência - Ciência e Biotecnologia - Interdisciplinar     Open Access  
Exchanges : the Warwick Research Journal     Open Access   (Followers: 1)
Experimental Results     Open Access   (Followers: 2)
Fides et Ratio : Revista de Difusión Cultural y Científica     Open Access  
Fontanus     Open Access   (Followers: 1)
Forensic Science Policy & Management: An International Journal     Hybrid Journal   (Followers: 292)
Frontiers in Climate     Open Access   (Followers: 5)
Frontiers in Science     Open Access   (Followers: 1)
Fundamental Research     Open Access  
Futures & Foresight Science     Hybrid Journal   (Followers: 1)
Gaudium Sciendi     Open Access  
Ghana Studies     Full-text available via subscription   (Followers: 15)
Global Journal of Pure and Applied Sciences     Full-text available via subscription  
Globe, The     Full-text available via subscription   (Followers: 4)
HardwareX     Open Access  
Heidelberger Jahrbücher Online     Open Access  
Heliyon     Open Access   (Followers: 1)
History of Science and Technology     Open Access   (Followers: 5)
Hoosier Science Teacher     Open Access  
Indian Journal of History of Science     Hybrid Journal   (Followers: 2)
Instruments     Open Access  
Interciencia     Open Access  
International Annals of Science     Open Access  
International Journal of Advanced Multidisciplinary Research and Review     Open Access  
International Journal of Applied Science     Open Access  
International Journal of Engineering, Science and Technology     Open Access  
International Journal of Network Science     Hybrid Journal   (Followers: 3)
International Journal of Social Sciences and Management     Open Access   (Followers: 3)
International Journal of Technology Policy and Law     Hybrid Journal   (Followers: 10)
International Science and Technology Journal of Namibia     Open Access   (Followers: 2)
International Scientific and Vocational Studies Journal     Open Access  
Investiga : TEC     Open Access  
Investigación Joven     Open Access  
Investigacion y Ciencia     Open Access   (Followers: 1)
Iranian Journal of Science and Technology, Transactions A : Science     Hybrid Journal  
iScience     Open Access   (Followers: 2)
Issues in Science & Technology     Free   (Followers: 9)
Ithaca : Viaggio nella Scienza     Open Access  
J : Multidisciplinary Scientific Journal     Open Access  
Jaunujų mokslininkų darbai     Open Access   (Followers: 3)
Journal de la Recherche Scientifique de l'Universite de Lome     Full-text available via subscription  
Journal of Chromatography & Separation Techniques     Open Access   (Followers: 9)
Journal of Advanced Research     Open Access   (Followers: 2)
Journal of Analytical Science & Technology     Open Access   (Followers: 5)
Journal of Applied Science and Technology     Full-text available via subscription   (Followers: 1)
Journal of Applied Sciences and Environmental Management     Open Access   (Followers: 1)
Journal of Big History     Open Access   (Followers: 4)
Journal of Composites Science     Open Access   (Followers: 4)
Journal of Diversity Management     Open Access   (Followers: 4)
Journal of Indian Council of Philosophical Research     Hybrid Journal  
Journal of Institute of Science and Technology     Open Access  
Journal of King Saud University - Science     Open Access  
Journal of Mathematical and Fundamental Sciences     Open Access  
Journal of Negative and No Positive Results     Open Access  
Journal of Responsible Technology     Open Access  
Journal of Science and Technology     Open Access   (Followers: 2)
Journal of Science and Technology     Open Access   (Followers: 1)
Journal of Science and Technology (Ghana)     Open Access   (Followers: 3)
Journal of Science and Technology Policy Management     Hybrid Journal   (Followers: 1)
Journal of Science Foundation     Open Access   (Followers: 1)
Journal of Scientific Research and Reports     Open Access   (Followers: 1)
Journal of Shanghai Jiaotong University (Science)     Hybrid Journal  
Journal of Social Science Research     Open Access   (Followers: 2)
Journal of Taibah University for Science     Open Access  
Journal of the Ghana Science Association     Full-text available via subscription   (Followers: 3)
Journal of the History of Ideas     Full-text available via subscription   (Followers: 199)
Journal of the Indian Institute of Science     Hybrid Journal   (Followers: 4)
Journal of the Royal Society of New Zealand     Hybrid Journal   (Followers: 49)
Journal of the South Carolina Academy of Science     Open Access  
Journal of Unsolved Questions     Open Access  
Jurnal Sains Dasar     Open Access  
Jurnal Teknosains     Open Access  
Karaelmas Science and Engineering Journal     Open Access  
Karbala International Journal of Modern Science     Open Access  
Kennedy Institute of Ethics Journal     Full-text available via subscription   (Followers: 10)
Logo STI Science, Technology and Innovation     Open Access   (Followers: 14)
Malawi Journal of Science and Technology     Open Access   (Followers: 6)
Maskana     Open Access  
MethodsX     Open Access  
Mètode Science Studies Journal : Annual Review     Open Access  
Modern Applied Science     Open Access   (Followers: 1)
Momona Ethiopian Journal of Science     Open Access   (Followers: 5)
National Academy Science Letters     Hybrid Journal   (Followers: 3)
National Science Review     Hybrid Journal   (Followers: 1)
Natural Sciences     Open Access  
Natural Sciences Education     Hybrid Journal   (Followers: 1)
Naturen     Full-text available via subscription  
Nepal Journal of Science and Technology     Open Access  
Network Science     Hybrid Journal   (Followers: 4)
Nordic Journal of Science and Technology     Open Access   (Followers: 2)
Nordic Studies in Science Education     Open Access   (Followers: 4)
Nova     Open Access  
Open Conference Proceedings Journal     Open Access  
Open Journal of Applied Sciences     Open Access  
Orbis Cógnita : Revista Científica     Open Access   (Followers: 1)
Patterns     Open Access   (Followers: 9)
People and Nature     Open Access   (Followers: 4)
Población y Desarrollo - Argonautas y caminantes     Open Access  
Politique et Sociétés     Full-text available via subscription   (Followers: 1)
Portal de la Ciencia     Open Access  
Proceedings of the Indian National Science Academy     Full-text available via subscription   (Followers: 4)
Proceedings of the Linnean Society of New South Wales     Full-text available via subscription   (Followers: 2)
Proceedings of the Royal Society of Queensland, The     Full-text available via subscription  
QScience Connect     Open Access  
Quantum Science and Technology     Hybrid Journal   (Followers: 15)
Rafidain Journal of Science     Open Access  
Rehabilitation Research, Policy, and Education     Hybrid Journal   (Followers: 2)
Reportes Científicos de la FaCEN     Open Access  
Reports in Advances of Physical Sciences     Open Access  
Research Ideas and Outcomes     Open Access  
Research Integrity and Peer Review     Open Access   (Followers: 1)
Research Policy : X     Open Access   (Followers: 3)
Respuestas     Open Access  
Revista Bases de la Ciencia     Open Access  
Revista Cientifica Guillermo de Ockham     Open Access  
Revista Conhecimento Online     Open Access  
Revista Crítica de Ciências Sociais     Open Access  
Revista de Ciencia y Tecnología     Open Access  
Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales     Open Access  
Revista de la Universidad del Zulia     Open Access  
Revista Politécnica     Open Access  
Revista Tecnológica     Open Access  
Revista UniVap     Open Access  
Revista Vivências em Ensino de Ciências     Open Access   (Followers: 1)
SAINSTIS     Open Access  
Sainteknol : Jurnal Sains dan Teknologi     Open Access  
Sci     Open Access  
Science     Full-text available via subscription   (Followers: 5422)
Science & Diplomacy     Free   (Followers: 3)
Science Advances     Free   (Followers: 45)
Science and Technology     Open Access   (Followers: 2)
Science Heritage Journal     Open Access  
Science World Journal     Open Access  
Science, Technology and Arts Research Journal     Open Access   (Followers: 1)
ScienceRise     Open Access  

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Karaelmas Science and Engineering Journal
Number of Followers: 0  

  This is an Open Access Journal Open Access journal
ISSN (Print) 2146-4987 - ISSN (Online) 2146-7277
Published by Bülent Ecevit University Homepage  [4 journals]
  • Prediction of Covid-19 and Pneumonia Diseases from Lung X-ray Images Using
           Quantum Convolutional Neural Networks

    • Authors: Seçmen Şahin; Güneş Harman
      Abstract: Quantum Convolutional Neural Networks (QCNNs) aim to enhance the capabilities of convolutional neural networks by leveraging the strengths of quantum computing. They operate by locally transforming input data using quantum circuits. In this study, two models have been built on a quantum-encoded COVID-19 dataset. Model-1 classifies between ‘Normal Person’ and ‘Covid19/Viral Pneumonia’, while Model-2 classifies between ‘Covid-19’ and ‘Viral Pneumonia’. Three different classifications have been made based on the number of qubits (feature count) for these models. For Quantum Classifier 1, approximately 70% accuracy was achieved by extracting 11 features from the 256-feature input data obtained through basic data analysis. In Quantum Classifier 2, using the TruncatedSVD method, each image’s 256 features were reduced to 4, resulting in 72% accuracy. Finally, Quantum Classifier 3 achieved an unexpected 76% accuracy using only 2 features. These models provide significant insights into diagnosing diseases from lung X- Ray images and demonstrate how quantum computers can be effectively utilized in the healthcare domain. Additionally, the impact of different parameters in the “default qubit” device of Pennylane on model performance has been investigated. The study highlights how Quantum Classifier 3 achieves high accuracy by significantly reducing the data dimension, indicating the potential of QCNNs to provide high performance with less resource usage in the future.
      PubDate: Tue, 23 Jul 2024 00:00:00 +030
       
  • Comparison of Footprint and Deflection Values of Tires with Standard
           Structure and IF Tire Structure Used in Tractor Applications

    • Authors: Onur Karaçay; Süleyman Kılıç
      Abstract: Tractor tires, thanks to their large surface areas, reduce the pressure applied to the soil, thus minimizing soil compaction and thereby increasing efficiency. Technological advancements, including increased engine power, have led to larger and heavier tractors, further increasing the risk of soil compaction. With these developments, new tires with low inflation pressures have been developed to reduce the surface pressure on the soil. These new tires are referred to as increased flexion (IF) and very high flexion tires. In this study, a comparison was made between a normal structure 600/70 R30 tire and an IF structure IF 600/70 R30 tire under a fixed load with three different rim structures, examining changes in pressure as well as changes in the footprint and deflection. The results show that at the minimum inflation pressure of 12psi, both tires exhibited the maximum ground contact area, whereas the minimum contact area was achieved at the maximum inflation pressure of 35psi with a DW21 rim for both tires. The maximum deflection value was recorded at 12psi with a W18 rim. It has been determined that the choice of rim and inflation pressure affects the contact area of the tire, and to reduce the surface pressure on the soil, it is necessary to reduce the tire inflation pressure to increase the contact area.
      PubDate: Tue, 23 Jul 2024 00:00:00 +030
       
  • Parkinson’s Disease Detection Via Machine Learning Using Data
           Splitting and Validation Methods

    • Authors: Mustafa Alptekin Engin
      Abstract: Parkinson’s disease (PD), a neurological disorder, negatively affects the lives of patients and their caregivers. PD, which is very difficult to diagnose early by examining the clinical characteristics of the person, can be diagnosed using voice recordings. However, the inconsistent performance results of the models obtained from the evaluation of voice recordings through machine learning techniques limit the usability of these models to aid in diagnosing physicians. This study used a database of 195 voice data obtained from 31 individuals, 23 of whom have PD. The classification of the voices as healthy or patient was based on the 22 features in the database. The split ratios 90/10, 80/20, 70/30, 50/50 and 30/70 were used to select the training and test phase data, respectively. In addition, each split ratio was evaluated using 10-fold cross-validation, 5-fold cross-validation, holdout validation and resubstitution validation methods in the training phase, which is the initial process that will directly affect the other classification procedures. In addition, the classification process was performed using quadratic discriminant analysis, support vector machine, ensemble bagged tree, k-nearest neighbours and neural network classifiers. All procedures were repeated 10 times to ensure consistency of results and randomisation of split ratios. As a result, the k-nearest neighbours classifier with 80/20 splitting ratio and 10-fold cross-validation was determined to be the most successful among the compared methods with 95.64±3.21% accuracy. Therefore, it can be seen that much more successful results can be obtained by analysing only the effects of the existing parameters of the classifiers.
      PubDate: Tue, 23 Jul 2024 00:00:00 +030
       
  • Classification of Knee Osteoarthritis Severity by Transfer Learning from
           X-Ray Images

    • Authors: Fatma Zehra Solak
      Abstract: Knee Osteoarthritis (KOA) is the most common type of arthritis and its severity is assessed with the Kellgren-Lawrence (KL) grading system based on evidence from both knee bones. Recent advancements point to an era where computer-assisted methods enhance KOA diagnostic efficiency. This study implemented binary and multiple classification processes based on X-ray images and deep learning algorithms for computer-aided KOA severity diagnosis. Pre-processing involved extracting the region of interest and contrast enhancement with CLAHE on the X-ray images from the included dataset. Using this dataset, 2, 3, 4, and 5 class classification processes were conducted with ResNet-50, Xception, VGG16, EfficientNetb0, and DenseNet201 transfer learning models. Each model was assessed with “rmsprop,” “sgdm,” and “adam” optimization algorithms. Study findings reveal that, the DenseNet201-rmsprop model achieved 87.7% accuracy, 87.2% F1-Score, and a 0.75 Cohen’s kappa value for 2-class classification. For 3-class classification, it achieved 85.6% accuracy, 82.4% F1-Score, and a 0.71 Cohen’s kappa value. For 4-class classification, the DenseNet201-rmsprop model provided 81.5% accuracy, 77.1% F1-Score, and a Cohen’s kappa value of 0.67. In the 5-class classification, the highest success was with the Xception-rmsprop model, with 67.8% accuracy, 68.8% F1-Score, and a 0.55 Cohen’s kappa value. The evaluation with varying class numbers and different transfer learning models highlights the proposed approach’s effectiveness. Results of the study underscore the study’s uniqueness and success in demonstrating how varying the number of classes, employing different transfer learning models and optimizers can provide clearer insights into KOA severity evaluation.
      PubDate: Tue, 23 Jul 2024 00:00:00 +030
       
  • Energy Requirements Based Photovoltaic Solar Power Plant Analysis and
           Design

    • Authors: Süleyman Güneş; Rıfat Hacıoğlu
      Abstract: Considering the sustainability problems and environmental impacts of fossil fuels, renewable and sustainable energy is becoming widespread in the world as well as in Turkey. Considering the increasing energy demand, the ability of educational institutions such as universities to produce their own energy is an important research topic in terms of the country’s economy and energy efficiency. In this study, it is aimed to create a prediction for the analysis and design of solar power plants (SPP) that may be established in order to meet the energy needs of institutions. Campus areas of universities have been selected to achieve this purpose, and installation scenarios are carried out in five different university campuses with comparisons of insolation, location and temperature change. Within the framework of current regulations, design approaches are suggested by analyzing not only radiation and sunshine duration but also panel temperature and panel angle results in energy conversion. Three different solar power plant installations are being evaluated on university campuses, including land, sloping roof and flat roof systems. In addition, energy production efficiency is also examined by examining fixed angle, monthly variable angle on a single axis and bi-annual angle changing situations. PVGIS online database and calculation system is used for analysis of solar power plant systems installed in different provinces. PVGIS is an online European Union project calculation system that provides information on solar radiation, sunshine duration, ambient conditions and photovoltaic (PV) system performance based on location information. Using PVGIS, meteorological data can be accessed for any coordinate around the world and how much energy can be produced from different PV systems can be calculated. In this design, which is compared with the real data collected, the error levels that may be encountered are revealed and the cost calculation is evaluated.
      PubDate: Tue, 23 Jul 2024 00:00:00 +030
       
  • Some Properties of Generalized Jacobsthal-Like Sequences

    • Authors: Can Murat Dikmen; Kübra Karataş Selam
      Abstract: In this article, using Jacobsthal and Jacobsthal-Lucas sequences, we define generalized Jacobsthal-Like sequences and investigate their algebraic properties like Binet’s formula, generating functions, Simson formula and summation formula. We also prove some other summation formulas like sum of even and odd indices and alternating sum of generalized Jacobsthal-Like sequences.
      PubDate: Tue, 23 Jul 2024 00:00:00 +030
       
  • Determination of the Effects of Some Water Quality Parameters on Turbidity
           Parameters in Filyos River with Artificial Neural Network

    • Authors: Berna Aksoy; İsmail Hakkı Özölçer, Emrah Doğan
      Abstract: During the water cycle, substances that are contaminated in water cause physical, chemical or biological alterations of the water’s natural features, therefore environmental balance deteriorate over time. Observations and measurements on a river give the necessary information about how to benefit from the river. For this reason, it is important to investigate the water quality in rivers and water reservoirs which are close to settlement areas. In this study, surface water quality measurements were carried out at five observation stations along the main line of the Filyos River, which forms the largest sub-basin in the Western Black Sea Basin, at intervals of thirty days in 2015 year. The turbidity parameter was estimated by artificial neural networks (ANNs) based on water quality parameters such as chromium (Cr+3), chemical oxygen demand (COD), iron (Fe+3), aluminium (Al+3), suspended solids, manganese (Mn+2), zinc (Zn+2), lead (Pb+2) and calcium (Ca+2). The study was conducted with creating two scenarios. In the first scenario, the determined parameters were analyzed by ANN for each station one by one. The obtained data showed that Cr (coefficient of determination [R2] =0.9999) parameter gave the best performance in the estimation of turbidity parameter in the study area. In the second scenario, eight models were created by adding the other best performing parameters one by one to the best performing Cr parameter. The third model formed by Cr, COD, Fe and Al parameters gave the closest result with R2=0.9992.
      PubDate: Tue, 23 Jul 2024 00:00:00 +030
       
  • The Relationship Between Redox-Sensitive Element Behaviors and Redox
           Conditions in Miocene Aged Bituminous Claystones of the Ilgın (Konya)
           Basin

    • Authors: Ali Sarı; Kamal Ismayılzada, Sinan Akıska, Fuat Erol
      Abstract: In this study, the redox-sensitive trace elements in the Miocene-aged bituminous claystones rich in shallow organic matter (%TOC: 14.52-44.44; avg: 31.24) in the Ilgın basin (Konya) were investigated. The elements studied include Vanadium (V), Uranium (U), and Molybdenum (Mo), as well as Zinc (Zn), Nickel (Ni), Copper (Cu), and Cobalt (Co), aiming to analyze their geochemical behaviors. Additionally, the influence of the basin’s redox conditions on organic matter accumulation was examined. For this purpose, 14 samples were systematically collected from the bituminous claystones, starting from the lignite level at the base up to the top. In the investigation of the behavior of redox-sensitive elements in the Miocene-aged bituminous claystones in the Ilgın area, the relationships between major and trace elements and their total organic carbon (%TOC) content were examined. Major and trace element analyses were conducted on samples using an ICP-OES device, and %TOC analyses were performed using a Rock Eval VI device. In the examined bituminous rocks, there are moderate correlations between %TOC and %Mo (r=0.529); weak and very weak correlations are observed for Cu (r=-0.230), Ni (r=-0.030), Zn (r=0.216), U (r=0.083), V (r=0.124), and Co (r=0.076). This indicates that the enrichment of these elements in sediments and sapropels from water masses does not involve organometallic ligands in humic acids except for Mo. Very weak correlation relationships of Fe with U (r=0.204), Ni (r=0.029), and Zn (r=-0.142) indicate that the enrichment of U and Zn in sapropel is not influenced by pyrite. However, the moderate correlation of Fe with Co (r=0.535) and strong correlation with Mo (r=0.722) suggest that the enrichment of Co and Mo in sapropel is influenced by pyrite. Very weak correlations between Mn and Cu (r=-0.562), Zn (r=-0.163), Ni (r=-0.318), V (r=-0.243), U (r=-0.142), and Mo (r=-0.600) indicate that manganese oxyhydroxides play no role in the diffusion and enrichment of these elements from water masses to sapropel. Sulfur shows very weak correlations with Ni (r=-0.121), V (r=-0.177), and Zn (r=-0.354); weak correlations with Cu (r=0.290) and U (r=0.302); moderate correlation with Co (r=0.476); and strong correlation with Mo (r=0.729). This suggests that Co precipitates as CoS and Mo as MoS2, while Cu, Zn, Ni, U, and V do not enrich as sulfides. A very strong correlation (r=0.929) between Fe and S indicates that Fe precipitates as pyrite (FeS2), suggesting an anoxic redox condition. The redox conditions in the basin are oxic/suboxic and anoxic based on Th/U ratios in all samples, except for samples RE-1 and RE-7; based on U/Th ratios, except for samples RE-1 and RE-7; and based on V/V+Ni ratios, except for samples RE-1, 2, 3, 6, and 12.
      PubDate: Tue, 23 Jul 2024 00:00:00 +030
       
  • Removal of Chromate Ions from Aqueous Solutions with Gum Arabic Modified
           Magnetic Nanoparticles

    • Authors: İlker Akın; Egemen Foto
      Abstract: Today, metallurgy, galvanizing, leather tanning, etc. the widespread use of chromium in industries causes the release of aqueous chromium to the environment. In aqueous solutions, chromium is usually present as Cr(VI) or Cr(III). These two forms of chromium have different chemical, biological and environmental effects. Cr(VI) exists as anionic species such as HCrO4-, Cr2O72- and CrO42-, which are highly mobile in soil and water systems. In this study, the removal of Cr(VI) from aqueous solution by batch adsorption method using gum arabic modified magnetic nanoparticles (GA-MNP) was investigated. AZ-MNP was obtained by modifying the carboxylic groups of gum arabic through the interaction between the hydroxyl groups on the surface of Fe3O4. Surface modification with gum arabic led to the formation of secondary particles with diameters in the range of 9-13 nm. The adsorption rate was fast enough to reach equilibrium within 45 minutes due to the lack of internal diffusion resistance. The adsorption capacities for MNP and AZ-MNP increased with decreasing solution pH. Maximum adsorption capacity, Langmuir adsorption constant and enthalpy changes in GA-MNP were determined as 0.194 mg/g, 11.06 mg/L and 9.4 kJ/mol, respectively.
      PubDate: Tue, 23 Jul 2024 00:00:00 +030
       
  • Characterization of Excess Production Product
           (Ethylene-Propylene-Unconjugated Diene-EPDM) Rubber Granules and Technical
           and Legal Evaluation for Determining Reuse

    • Authors: Melike İşgören; İsmail Toroz
      Abstract: Rubber is a versatile material with many applications in various industrial fields. However, its extensive use also leads to the generation of significant amounts of waste. Therefore, waste reduction and the promotion of waste recovery and reuse are crucial in waste management. Therefore, accurate recognition and identification of waste is essential for proper management. This study aims to determine the physical, chemical, and technical properties of Ethylene Propylene Diene Copolymer (EPDM), a type of rubber, to identify the reuse areas of production residues from the automotive industry. The analysis results will be evaluated. The evaluation of alternatives for field use and the export of granule material produced from scrap material has been conducted under current legislation. The materials used for sealing windows and doors in the automotive industry, specifically EPDM rubber wicks, are recyclable scrap. The excess products produced during their production should also be evaluated as recyclable waste within the GTIP codes ‘400270000000: Ethylene-Propylene-Unconjugated Diene Rubber (EPDM).’ It was concluded that along with other filling materials, it is suitable for use in areas such as children’s playgrounds and sports fields for humanitarian purposes.
      PubDate: Tue, 23 Jul 2024 00:00:00 +030
       
  • Siamese Neural Networks Based Ensemble Model for the Prediction of
           Protein-Protein Interactions

    • Authors: Duygu Geçkin; Güleser Kalaycı Demir
      Abstract: A wide range of biological processes, including signal transmission, immunological responses, and metabolic cycles, are impacted by protein-protein interactions. These interactions have enormous implications for figuring out the origins of diseases and creating treatments. However, experimental methods for identifying PPIs are resource-intensive, time-consuming, and have limited coverage. Thus, computational techniques are essential to help and enhance activities related to protein identification. This study aims to build a deep learning network for predicting protein-protein interactions using only sequence information. Three different encoding methods are used to encode protein sequences: Binary Encoding, Autocovariance, and Position Specific Scoring Matrix. In order to predict protein-protein interactions, a convolutional Siamese neural network is employed to find complex patterns between protein sequence pairs. This network consists of two identical subnetworks with matched parameters. When applied to the human dataset, the suggested technique shows strong prediction performance with an accuracy of 84.07%, sensitivity of 92.45%, and precision of 91.45% for the model using the PSSM protein representation approach. An ensemble approach is suggested to combine the outputs from these three encoders because it is known that different encoding techniques capture various aspects of the same protein sequence. The accuracy obtained increased to 86.27% for the ensemble approach on the test set, with a sensitivity of 93.07% and a precision of 92.15%. The outcome highlights the importance of integrating several encoding methods to benefit from their complementary features and raise the accuracy of protein-protein interaction prediction.
      PubDate: Tue, 23 Jul 2024 00:00:00 +030
       
  • Trend Analysis of Meteorological Variables Using Mann-Kendall and Sen’s
           Slope Methods in Küçük Menderes Basin

    • Authors: Melisa Ergün; Beyza Fırat, Gamze Tuncer, Osman Sönmez
      Abstract: Today, climate change, which is a threat for the whole world, especially for our country, adversely affects the structure and functioning of the ecosystem and poses a risk to our natural resources. The effect of changes in temperature, especially on the precipitation parameter, leads to a decrease in water resources. The depletion of water, which is our most important source of life, threatens our country in agricultural and socio-economic terms. In this study, Mann-Kendall and Sen’s slope trend analyses, which are nonparametric methods, were applied using monthly total precipitation, average relative humidity and average temperature data of Izmir Bolge, Kusadasi, Cesme, Odemis, Seferihisar and Selcuk stations located in Kucuk Menderes Basin, which is one of the water poor basins of our country, between 1972-2023. As a result of the study, the trend trends of meteorological data showed similar results in all stations in the analyses made by both methods.
      PubDate: Tue, 23 Jul 2024 00:00:00 +030
       
 
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  Subjects -> SCIENCES: COMPREHENSIVE WORKS (Total: 374 journals)
Showing 1 - 200 of 265 Journals sorted alphabetically
Accountability in Research: Policies and Quality Assurance     Hybrid Journal   (Followers: 19)
Acta Nova     Open Access   (Followers: 2)
Acta Scientifica Malaysia     Open Access   (Followers: 1)
Acta Scientifica Naturalis     Open Access   (Followers: 4)
Adıyaman University Journal of Science     Open Access  
Advanced Science     Open Access   (Followers: 16)
Advanced Science, Engineering and Medicine     Partially Free   (Followers: 8)
Advanced Theory and Simulations     Hybrid Journal   (Followers: 4)
Advances in Research     Open Access  
Advances in Science and Technology     Full-text available via subscription   (Followers: 18)
African Journal of Science, Technology, Innovation and Development     Hybrid Journal   (Followers: 8)
Afrique Science : Revue Internationale des Sciences et Technologie     Open Access   (Followers: 1)
AFRREV STECH : An International Journal of Science and Technology     Open Access   (Followers: 3)
Alfarama Journal of Basic & Applied Sciences     Open Access   (Followers: 12)
American Academic & Scholarly Research Journal     Open Access   (Followers: 4)
American Journal of Applied Sciences     Open Access   (Followers: 22)
American Journal of Humanities and Social Sciences     Open Access   (Followers: 14)
Anales del Instituto de la Patagonia     Open Access  
Applied Mathematics and Nonlinear Sciences     Open Access   (Followers: 2)
Arab Journal of Basic and Applied Sciences     Open Access  
Arabian Journal for Science and Engineering     Hybrid Journal   (Followers: 1)
Archives Internationales d'Histoire des Sciences     Partially Free   (Followers: 5)
Archives of Current Research International     Open Access  
ARPHA Conference Abstracts     Open Access   (Followers: 1)
ARPHA Proceedings     Open Access  
Asian Journal of Advanced Research and Reports     Open Access  
Asian Journal of Scientific Research     Open Access   (Followers: 2)
Asian Journal of Technology Innovation     Hybrid Journal   (Followers: 5)
Australian Field Ornithology     Full-text available via subscription   (Followers: 1)
Australian Journal of Social Issues     Hybrid Journal   (Followers: 6)
Bangladesh Journal of Scientific Research     Open Access  
Beni-Suef University Journal of Basic and Applied Sciences     Open Access   (Followers: 1)
Berichte Zur Wissenschaftsgeschichte     Hybrid Journal   (Followers: 11)
Bilge International Journal of Science and Technology Research     Open Access  
Bioethics Research Notes     Full-text available via subscription   (Followers: 15)
BJHS Themes     Open Access   (Followers: 5)
Bulletin de la Société Royale des Sciences de Liège     Open Access  
Bulletin of the National Research Centre     Open Access  
Chain Reaction     Full-text available via subscription  
Ciencia Amazónica (Iquitos)     Open Access  
Ciencia en su PC     Open Access   (Followers: 1)
Ciencia Ergo Sum     Open Access  
Ciência ET Praxis     Open Access  
Communications Faculty of Sciences University of Ankara Series A2-A3 Physical Sciences and Engineering     Open Access  
Comunicata Scientiae     Open Access  
Conference Papers in Science     Open Access  
Configurations     Full-text available via subscription   (Followers: 11)
COSMOS     Hybrid Journal   (Followers: 1)
Crea Ciencia Revista Científica     Open Access  
Current Issues in Criminal Justice     Hybrid Journal   (Followers: 14)
Current Research in Geoscience     Open Access   (Followers: 6)
Data     Open Access   (Followers: 4)
Dhaka University Journal of Science     Open Access  
Discover Sustainability     Open Access   (Followers: 4)
Einstein (São Paulo)     Open Access  
Ekaia : EHUko Zientzia eta Teknologia aldizkaria     Open Access  
Emergent Scientist     Open Access  
Enhancing Learning in the Social Sciences     Open Access   (Followers: 8)
Enseñanza de las Ciencias : Revista de Investigación y Experiencias Didácticas     Open Access  
Entramado     Open Access  
Entre Ciencia e Ingeniería     Open Access  
Epiphany     Open Access   (Followers: 1)
Ethiopian Journal of Education and Sciences     Open Access   (Followers: 5)
European Online Journal of Natural and Social Sciences     Open Access   (Followers: 4)
European Scientific Journal     Open Access   (Followers: 11)
Evidência - Ciência e Biotecnologia - Interdisciplinar     Open Access  
Exchanges : the Warwick Research Journal     Open Access   (Followers: 1)
Experimental Results     Open Access   (Followers: 2)
Fides et Ratio : Revista de Difusión Cultural y Científica     Open Access  
Fontanus     Open Access   (Followers: 1)
Forensic Science Policy & Management: An International Journal     Hybrid Journal   (Followers: 292)
Frontiers in Climate     Open Access   (Followers: 5)
Frontiers in Science     Open Access   (Followers: 1)
Fundamental Research     Open Access  
Futures & Foresight Science     Hybrid Journal   (Followers: 1)
Gaudium Sciendi     Open Access  
Ghana Studies     Full-text available via subscription   (Followers: 15)
Global Journal of Pure and Applied Sciences     Full-text available via subscription  
Globe, The     Full-text available via subscription   (Followers: 4)
HardwareX     Open Access  
Heidelberger Jahrbücher Online     Open Access  
Heliyon     Open Access   (Followers: 1)
History of Science and Technology     Open Access   (Followers: 5)
Hoosier Science Teacher     Open Access  
Indian Journal of History of Science     Hybrid Journal   (Followers: 2)
Instruments     Open Access  
Interciencia     Open Access  
International Annals of Science     Open Access  
International Journal of Advanced Multidisciplinary Research and Review     Open Access  
International Journal of Applied Science     Open Access  
International Journal of Engineering, Science and Technology     Open Access  
International Journal of Network Science     Hybrid Journal   (Followers: 3)
International Journal of Social Sciences and Management     Open Access   (Followers: 3)
International Journal of Technology Policy and Law     Hybrid Journal   (Followers: 10)
International Science and Technology Journal of Namibia     Open Access   (Followers: 2)
International Scientific and Vocational Studies Journal     Open Access  
Investiga : TEC     Open Access  
Investigación Joven     Open Access  
Investigacion y Ciencia     Open Access   (Followers: 1)
Iranian Journal of Science and Technology, Transactions A : Science     Hybrid Journal  
iScience     Open Access   (Followers: 2)
Issues in Science & Technology     Free   (Followers: 9)
Ithaca : Viaggio nella Scienza     Open Access  
J : Multidisciplinary Scientific Journal     Open Access  
Jaunujų mokslininkų darbai     Open Access   (Followers: 3)
Journal de la Recherche Scientifique de l'Universite de Lome     Full-text available via subscription  
Journal of Chromatography & Separation Techniques     Open Access   (Followers: 9)
Journal of Advanced Research     Open Access   (Followers: 2)
Journal of Analytical Science & Technology     Open Access   (Followers: 5)
Journal of Applied Science and Technology     Full-text available via subscription   (Followers: 1)
Journal of Applied Sciences and Environmental Management     Open Access   (Followers: 1)
Journal of Big History     Open Access   (Followers: 4)
Journal of Composites Science     Open Access   (Followers: 4)
Journal of Diversity Management     Open Access   (Followers: 4)
Journal of Indian Council of Philosophical Research     Hybrid Journal  
Journal of Institute of Science and Technology     Open Access  
Journal of King Saud University - Science     Open Access  
Journal of Mathematical and Fundamental Sciences     Open Access  
Journal of Negative and No Positive Results     Open Access  
Journal of Responsible Technology     Open Access  
Journal of Science and Technology     Open Access   (Followers: 2)
Journal of Science and Technology     Open Access   (Followers: 1)
Journal of Science and Technology (Ghana)     Open Access   (Followers: 3)
Journal of Science and Technology Policy Management     Hybrid Journal   (Followers: 1)
Journal of Science Foundation     Open Access   (Followers: 1)
Journal of Scientific Research and Reports     Open Access   (Followers: 1)
Journal of Shanghai Jiaotong University (Science)     Hybrid Journal  
Journal of Social Science Research     Open Access   (Followers: 2)
Journal of Taibah University for Science     Open Access  
Journal of the Ghana Science Association     Full-text available via subscription   (Followers: 3)
Journal of the History of Ideas     Full-text available via subscription   (Followers: 199)
Journal of the Indian Institute of Science     Hybrid Journal   (Followers: 4)
Journal of the Royal Society of New Zealand     Hybrid Journal   (Followers: 49)
Journal of the South Carolina Academy of Science     Open Access  
Journal of Unsolved Questions     Open Access  
Jurnal Sains Dasar     Open Access  
Jurnal Teknosains     Open Access  
Karaelmas Science and Engineering Journal     Open Access  
Karbala International Journal of Modern Science     Open Access  
Kennedy Institute of Ethics Journal     Full-text available via subscription   (Followers: 10)
Logo STI Science, Technology and Innovation     Open Access   (Followers: 14)
Malawi Journal of Science and Technology     Open Access   (Followers: 6)
Maskana     Open Access  
MethodsX     Open Access  
Mètode Science Studies Journal : Annual Review     Open Access  
Modern Applied Science     Open Access   (Followers: 1)
Momona Ethiopian Journal of Science     Open Access   (Followers: 5)
National Academy Science Letters     Hybrid Journal   (Followers: 3)
National Science Review     Hybrid Journal   (Followers: 1)
Natural Sciences     Open Access  
Natural Sciences Education     Hybrid Journal   (Followers: 1)
Naturen     Full-text available via subscription  
Nepal Journal of Science and Technology     Open Access  
Network Science     Hybrid Journal   (Followers: 4)
Nordic Journal of Science and Technology     Open Access   (Followers: 2)
Nordic Studies in Science Education     Open Access   (Followers: 4)
Nova     Open Access  
Open Conference Proceedings Journal     Open Access  
Open Journal of Applied Sciences     Open Access  
Orbis Cógnita : Revista Científica     Open Access   (Followers: 1)
Patterns     Open Access   (Followers: 9)
People and Nature     Open Access   (Followers: 4)
Población y Desarrollo - Argonautas y caminantes     Open Access  
Politique et Sociétés     Full-text available via subscription   (Followers: 1)
Portal de la Ciencia     Open Access  
Proceedings of the Indian National Science Academy     Full-text available via subscription   (Followers: 4)
Proceedings of the Linnean Society of New South Wales     Full-text available via subscription   (Followers: 2)
Proceedings of the Royal Society of Queensland, The     Full-text available via subscription  
QScience Connect     Open Access  
Quantum Science and Technology     Hybrid Journal   (Followers: 15)
Rafidain Journal of Science     Open Access  
Rehabilitation Research, Policy, and Education     Hybrid Journal   (Followers: 2)
Reportes Científicos de la FaCEN     Open Access  
Reports in Advances of Physical Sciences     Open Access  
Research Ideas and Outcomes     Open Access  
Research Integrity and Peer Review     Open Access   (Followers: 1)
Research Policy : X     Open Access   (Followers: 3)
Respuestas     Open Access  
Revista Bases de la Ciencia     Open Access  
Revista Cientifica Guillermo de Ockham     Open Access  
Revista Conhecimento Online     Open Access  
Revista Crítica de Ciências Sociais     Open Access  
Revista de Ciencia y Tecnología     Open Access  
Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales     Open Access  
Revista de la Universidad del Zulia     Open Access  
Revista Politécnica     Open Access  
Revista Tecnológica     Open Access  
Revista UniVap     Open Access  
Revista Vivências em Ensino de Ciências     Open Access   (Followers: 1)
SAINSTIS     Open Access  
Sainteknol : Jurnal Sains dan Teknologi     Open Access  
Sci     Open Access  
Science     Full-text available via subscription   (Followers: 5422)
Science & Diplomacy     Free   (Followers: 3)
Science Advances     Free   (Followers: 45)
Science and Technology     Open Access   (Followers: 2)
Science Heritage Journal     Open Access  
Science World Journal     Open Access  
Science, Technology and Arts Research Journal     Open Access   (Followers: 1)
ScienceRise     Open Access  

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School of Mathematical and Computer Sciences
Heriot-Watt University
Edinburgh, EH14 4AS, UK
Email: journaltocs@hw.ac.uk
Tel: +00 44 (0)131 4513762
 


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