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  Subjects -> SCIENCES: COMPREHENSIVE WORKS (Total: 426 journals)
Showing 1 - 200 of 265 Journals sorted alphabetically
AAS Open Research     Open Access   (Followers: 1)
ABC Journal of Advanced Research     Open Access  
Accountability in Research: Policies and Quality Assurance     Hybrid Journal   (Followers: 22)
Acta Materialia Transilvanica     Open Access  
Acta Nova     Open Access   (Followers: 1)
Acta Scientifica Malaysia     Open Access  
Acta Scientifica Naturalis     Open Access   (Followers: 3)
Adıyaman University Journal of Science     Open Access  
Advanced Science     Open Access   (Followers: 13)
Advanced Science, Engineering and Medicine     Partially Free   (Followers: 11)
Advanced Theory and Simulations     Hybrid Journal   (Followers: 5)
Advances in Research     Open Access  
Advances in Science and Technology     Full-text available via subscription   (Followers: 17)
African Journal of Science, Technology, Innovation and Development     Hybrid Journal   (Followers: 8)
Afrique Science : Revue Internationale des Sciences et Technologie     Open Access   (Followers: 2)
AFRREV STECH : An International Journal of Science and Technology     Open Access   (Followers: 4)
American Academic & Scholarly Research Journal     Open Access   (Followers: 6)
American Journal of Applied Sciences     Open Access   (Followers: 27)
American Journal of Humanities and Social Sciences     Open Access   (Followers: 17)
American Scientist     Full-text available via subscription   (Followers: 13)
ANALES de la Universidad Central del Ecuador     Open Access   (Followers: 4)
Anales del Instituto de la Patagonia     Open Access  
Applied Mathematics and Nonlinear Sciences     Open Access   (Followers: 1)
Apuntes de Ciencia & Sociedad     Open Access  
Arab Journal of Basic and Applied Sciences     Open Access  
Arabian Journal for Science and Engineering     Hybrid Journal   (Followers: 5)
Archives Internationales d'Histoire des Sciences     Partially Free   (Followers: 7)
Archives of Current Research International     Open Access  
ARO. The Scientific Journal of Koya University     Open Access   (Followers: 1)
ARPHA Conference Abstracts     Open Access   (Followers: 5)
ARPHA Proceedings     Open Access   (Followers: 5)
ArtefaCToS : Revista de estudios sobre la ciencia y la tecnología     Open Access   (Followers: 1)
Asia-Pacific Journal of Science and Technology     Open Access  
Asian Journal of Advanced Research and Reports     Open Access   (Followers: 2)
Asian Journal of Applied Science and Engineering     Open Access   (Followers: 2)
Asian Journal of Scientific Research     Open Access   (Followers: 3)
Asian Journal of Technology Innovation     Hybrid Journal   (Followers: 7)
Australian Field Ornithology     Full-text available via subscription   (Followers: 4)
Australian Journal of Social Issues     Hybrid Journal   (Followers: 7)
Avrasya Terim Dergisi     Open Access  
Bangladesh Journal of Scientific Research     Open Access   (Followers: 1)
Beni-Suef University Journal of Basic and Applied Sciences     Open Access   (Followers: 3)
Berichte Zur Wissenschaftsgeschichte     Hybrid Journal   (Followers: 10)
Berkeley Scientific Journal     Full-text available via subscription  
BIBECHANA     Open Access   (Followers: 2)
BibNum     Open Access  
Bilge International Journal of Science and Technology Research     Open Access   (Followers: 1)
Bioethics Research Notes     Full-text available via subscription   (Followers: 16)
Bistua : Revista de la Facultad de Ciencias Básicas     Open Access  
BJHS Themes     Open Access   (Followers: 1)
Black Sea Journal of Engineering and Science     Open Access  
Borneo Journal of Resource Science and Technology     Open Access  
Brazilian Journal of Science and Technology     Open Access   (Followers: 2)
Bulletin de la Société Royale des Sciences de Liège     Open Access  
Bulletin of the National Research Centre     Open Access  
Butlletí de la Institució Catalana d'Història Natural     Open Access  
Central European Journal of Clinical Research     Open Access  
Chain Reaction     Full-text available via subscription  
Ciencia & Natura     Open Access   (Followers: 1)
Ciencia Amazónica (Iquitos)     Open Access   (Followers: 1)
Ciencia en Desarrollo     Open Access   (Followers: 3)
Ciencia en su PC     Open Access   (Followers: 1)
Ciencia Ergo Sum     Open Access  
Ciência ET Praxis     Open Access  
Ciencia y Tecnología     Open Access  
Ciencia, Docencia y Tecnología     Open Access  
Ciencias Holguin     Open Access   (Followers: 2)
CienciaUAT     Open Access   (Followers: 1)
Citizen Science : Theory and Practice     Open Access   (Followers: 2)
Communications Faculty of Sciences University of Ankara Series A2-A3 Physical Sciences and Engineering     Open Access  
Communications in Applied Sciences     Open Access  
Comprehensive Therapy     Hybrid Journal   (Followers: 3)
Comunicata Scientiae     Open Access   (Followers: 1)
ConCiencia     Open Access  
Conference Papers in Science     Open Access   (Followers: 2)
Configurations     Full-text available via subscription   (Followers: 11)
COSMOS     Hybrid Journal   (Followers: 1)
Crea Ciencia Revista Científica     Open Access   (Followers: 2)
Cuadernos de Investigación UNED     Open Access  
Current Issues in Criminal Justice     Hybrid Journal   (Followers: 15)
Current Research in Geoscience     Open Access   (Followers: 8)
Dalat University Journal of Science     Open Access  
Data     Open Access   (Followers: 5)
Data Curation Profiles Directory     Open Access   (Followers: 5)
Dhaka University Journal of Science     Open Access  
Dharmakarya     Open Access  
Diálogos Interdisciplinares     Open Access  
Digithum     Open Access   (Followers: 2)
Discover Sustainability     Open Access   (Followers: 2)
Einstein (São Paulo)     Open Access  
Ekaia : EHUko Zientzia eta Teknologia aldizkaria     Open Access  
Elkawnie : Journal of Islamic Science and Technology     Open Access  
Emergent Scientist     Open Access  
Enhancing Learning in the Social Sciences     Open Access   (Followers: 9)
Enseñanza de las Ciencias : Revista de Investigación y Experiencias Didácticas     Open Access  
Entramado     Open Access  
Entre Ciencia e Ingeniería     Open Access   (Followers: 1)
Epiphany     Open Access   (Followers: 4)
Estação Científica (UNIFAP)     Open Access   (Followers: 1)
Ethiopian Journal of Education and Sciences     Open Access   (Followers: 6)
Ethiopian Journal of Science and Technology     Open Access  
Ethiopian Journal of Sciences and Sustainable Development     Open Access   (Followers: 5)
European Online Journal of Natural and Social Sciences     Open Access   (Followers: 12)
European Scientific Journal     Open Access   (Followers: 12)
Evidência - Ciência e Biotecnologia - Interdisciplinar     Open Access  
Exchanges : the Warwick Research Journal     Open Access   (Followers: 2)
Experimental Results     Open Access   (Followers: 1)
Extensionismo, Innovación y Transferencia Tecnológica     Open Access   (Followers: 3)
Facets     Open Access  
Fides et Ratio : Revista de Difusión Cultural y Científica     Open Access   (Followers: 1)
Fırat University Turkish Journal of Science & Technology     Open Access  
Fontanus     Open Access  
Forensic Science Policy & Management: An International Journal     Hybrid Journal   (Followers: 380)
Frontiers for Young Minds     Open Access  
Frontiers in Climate     Open Access   (Followers: 3)
Frontiers in Science     Open Access   (Followers: 1)
Fundamental Research     Open Access   (Followers: 1)
Futures & Foresight Science     Hybrid Journal   (Followers: 4)
Gaudium Sciendi     Open Access   (Followers: 1)
Gazi University Journal of Science     Open Access  
Ghana Studies     Full-text available via subscription   (Followers: 15)
Global Journal of Pure and Applied Sciences     Full-text available via subscription  
Global Journal of Science Frontier Research     Open Access   (Followers: 2)
Globe, The     Full-text available via subscription   (Followers: 4)
HardwareX     Open Access  
Heidelberger Jahrbücher Online     Open Access  
Heliyon     Open Access  
Himalayan Journal of Science and Technology     Open Access   (Followers: 1)
History of Science and Technology     Open Access   (Followers: 2)
Hoosier Science Teacher     Open Access  
Iberoamerican Journal of Science Measurement and Communication     Open Access  
Impact     Open Access   (Followers: 2)
Indian Journal of History of Science     Hybrid Journal   (Followers: 2)
Indonesian Journal of Fundamental Sciences     Open Access  
Indonesian Journal of Science and Mathematics Education     Open Access   (Followers: 4)
Indonesian Journal of Science and Technology     Open Access  
Ingenieria y Ciencia     Open Access   (Followers: 1)
Innovare : Revista de ciencia y tecnología     Open Access  
Instruments     Open Access  
Integrated Research Advances     Open Access  
Interciencia     Open Access   (Followers: 1)
Interface Focus     Full-text available via subscription  
International Annals of Science     Open Access  
International Archives of Science and Technology     Open Access  
International Journal of Academic Research in Business, Arts & Science     Open Access   (Followers: 2)
International Journal of Advanced Multidisciplinary Research and Review     Open Access  
International Journal of Applied Science     Open Access  
International Journal of Basic and Applied Sciences     Open Access   (Followers: 4)
International Journal of Computational and Experimental Science and Engineering (IJCESEN)     Open Access  
International Journal of Culture and Modernity     Open Access   (Followers: 3)
International Journal of Engineering, Science and Technology     Open Access  
International Journal of Engineering, Technology and Natural Sciences     Open Access  
International Journal of Innovation and Applied Studies     Open Access   (Followers: 12)
International Journal of Innovative Research and Scientific Studies     Open Access   (Followers: 6)
International Journal of Network Science     Hybrid Journal   (Followers: 3)
International Journal of Recent Contributions from Engineering, Science & IT     Open Access   (Followers: 1)
International Journal of Research in Science     Open Access   (Followers: 2)
International Journal of Science & Emerging Technologies     Open Access   (Followers: 1)
International Journal of Social Sciences and Management     Open Access   (Followers: 3)
International Journal of Technology Policy and Law     Hybrid Journal   (Followers: 7)
International Letters of Social and Humanistic Sciences     Open Access   (Followers: 1)
International Review of Applied Sciences     Open Access  
International Scientific and Vocational Studies Journal     Open Access   (Followers: 2)
InterSciencePlace     Open Access   (Followers: 1)
Investiga : TEC     Open Access  
Investigación Joven     Open Access  
Investigación Valdizana     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: 7)
Ithaca : Viaggio nella Scienza     Open Access  
J : Multidisciplinary Scientific Journal     Open Access  
Jaunujų mokslininkų darbai     Open Access   (Followers: 1)
Journal de la Recherche Scientifique de l'Universite de Lome     Full-text available via subscription   (Followers: 2)
Journal of Chromatography & Separation Techniques     Open Access   (Followers: 12)
Journal of Advanced Research     Open Access   (Followers: 3)
Journal of Al-Qadisiyah for Pure Science     Open Access   (Followers: 1)
Journal of Alasmarya University     Open Access   (Followers: 3)
Journal of Analytical Science & Technology     Open Access   (Followers: 6)
Journal of Applied Science and Technology     Full-text available via subscription   (Followers: 1)
Journal of Applied Sciences and Environmental Management     Open Access   (Followers: 3)
Journal of Big History     Open Access   (Followers: 3)
Journal of Composites Science     Open Access   (Followers: 3)
Journal of Critical Thought and Praxis     Open Access   (Followers: 2)
Journal of Deliberative Mechanisms in Science     Open Access  
Journal of Diversity Management     Open Access   (Followers: 6)
Journal of Indian Council of Philosophical Research     Hybrid Journal  
Journal of Institute of Science and Technology     Open Access  
Journal of Integrated Science and Technology     Open Access  
Journal of Interaction Science     Open Access   (Followers: 1)
Journal of Kerbala University     Open Access   (Followers: 1)
Journal of King Saud University - Science     Open Access   (Followers: 1)
Journal of Mathematical and Fundamental Sciences     Open Access  
Journal of Natural Sciences and Mathematics Research     Open Access  
Journal of Natural Sciences Research     Open Access   (Followers: 4)
Journal of Negative and No Positive Results     Open Access  
Journal of Responsible Technology     Open Access   (Followers: 1)
Journal of Science (JSc)     Open Access  
Journal of Science and Engineering     Open Access  

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Karbala International Journal of Modern Science
Number of Followers: 3  

  This is an Open Access Journal Open Access journal
ISSN (Print) 2405-609X - ISSN (Online) 2405-6103
Published by Digital Commons Homepage  [5 journals]
  • Evaluation of Wind Data Reliability by Using Logarithmic and Power Laws: A
           case study in Southern Iraq

    • Authors: Ahmed B. Khamees et al.
      Abstract: In this study, two sites were investigated in the southern region of Iraq: Ali AL-Gharbi and AL-Salman in Mesan and AL-Muthana provinces, respectively. A theoretical extrapolation between wind speed and height was carried out for both locations each month using the Logarithmic Law. Power Law was also applied to achieve calculations of wind shear coefficient (α) by using the actual data collected from the meteorological mast installed in each site at three levels of 10 m, 30 m, and 50 m, at an interval of ten minutes. To compare the effects of each law, two laws are employed.
      PubDate: Tue, 31 Aug 2021 15:51:20 PDT
       
  • Polystyrene Molecular Weight Determination of Submicron Particles Shell

    • Authors: Airat Z. Sakhabutdinov Dr.Sc; Professor et al.
      Abstract: The method of determination of the molecular weight of the polystyrene, which is formed as the shell on the surfaces of submicron aluminum oxide particles is considered in the paper. This method is based on the sedimentation of submicron particles, covered by polymer molecules, in a solvent for polystyrene. It is shown that the average polystyrene molecular weight is 39500±11250 amu, when the polymer shells on the surfaces of submicron particles (Al2O3) are formed by the vapor-phase method.
      PubDate: Tue, 31 Aug 2021 15:51:17 PDT
       
  • Adaptive reconstruction of the heterogeneous scan line ETM+ correction
           technique

    • Authors: Heba Kh. Abbas et al.
      Abstract: ETM+ is a land-imaging sensor with great and wide use in many fields, however, after May 2003, because of a technical defect in the sensor´s system scan line corrector SLC, it started giving images of earth containing black gap lines at a 22% rate. These gaps made the process of analyzing and extracting accurate information from these images difficult and complicated. Therefore, scientists have developed many techniques to remove the gap lines from all ETM+ band-images and complete the missing data. In this study, three different ETM+ time images with a 16-day interval between them were used to fill gap lines, complementing the images, and minimize the effect of the gaps. However, the adopted temporal filtration method was not able to completely remove the gaps. An added algorithm is used, which is based on using one of three filters (mean, median, and max.) to work on a vertical linear window whose center is on the points of the gap lines in the images. The quality of the resulting images was evaluated using the Jaccard metric standard to find the degree of similarity between the original images and the images that resulted from the implementation of the algorithm, the results showed good quality images, and the gaps were completely removed from the resulting images. A higher degree of similarity was obtained from implementing the (mean and median), ranging between 0.6568 and 0.9007, compared with the (max), where the similarity ranged between 0.6246 and 0.8820. This study aims to fill the images gaps using the temporal filtering technique.
      PubDate: Tue, 31 Aug 2021 15:51:14 PDT
       
  • Two-Dimensional Quantitative Profiling of Cell Morphology with Serous
           Effusion by Unsupervised Machine Learning Analysis

    • Authors: Safaa Al-Qaysi Ph.D. et al.
      Abstract: Cytological evaluation of serous effusion specimens is an important part of cancer diagnosis. In this study we performed two-dimensional (2D) morphometric features and clustering analysis for development of useful techniques for identification and differentiation of malignant and begin cells in serous effusion specimens extracted from ten patients with clinical symptoms of pleural and peritoneal effusion. Our findings show that the two-dimensional (2D) morphometric features and clustering analysis are useful techniques for identification and differentiation of malignant and begin cells in serous effusion specimens, which can lead to development of new methods for rapid cells profiling in clinical application.
      PubDate: Tue, 31 Aug 2021 15:51:11 PDT
       
  • Modeling Vitexin and Isovitexin Flavones as Corrosion Inhibitors for
           Aluminium Metal

    • Authors: Abdullahi Muhammad Ayuba et al.
      Abstract: Theoretically, the aluminium corrosion inhibitive performance of vitexin (VTX) and isovitexin (SVT) were evaluated with a view of establishing the mechanism of the inhibition process. Calculations which include the consideration of several global descriptors were studied to describe and correlate the reactivity of the molecules with the computed descriptors. First and second-order condensed Fukui functions were employed to analyze local reactivity parameters, while simulations involving the adsorbed molecules on Al (1 1 0) surface were conducted through quench dynamic simulations and the mechanism of physical adsorption was established with SVT relatively been a better inhibitor on Al surface than VTX.
      PubDate: Tue, 31 Aug 2021 15:51:08 PDT
       
  • Stability-Delay Efficient Cluster-based Routing Protocol for VANET

    • Authors: Ahmed Jawad Kadhim Al-Shaibany Ph.D
      Abstract: Vehicular Ad hoc Network (VANET) can be used in safety applications to transfer information about some events (e.g. accidents) with minimum time. Sending this information is achieved by using a routing algorithm. A large number of cluster-based routing schemes were presented for VANET. Unfortunately, the mobility of vehicles in unexpected directions negatively affects the performance of these schemes, destroys the network links, and decreases the routes' stability. This problem leads to repeat route discovery and maintenance operations and, as a result increases the overhead and delay. Thus, they are not an optimal selection for safety applications. Moreover, the cluster-based policies need efficient clustering approaches, but the previous ones fail to enhance the stability of links and cluster heads. Moreover, they did not focus on the stability of gateways. Therefore, a new clustering formation approach that focuses on the stability of cluster head and gateway is proposed. It gives priority to the parked and stopped vehicles to be cluster heads and gateways. Moreover, a new cluster-based routing protocol to build optimal paths with minimum delay and maximum stability called CRDS is suggested for safety applications. CRDS depends on the suggested clustering approach and computes the optimal routes depending on a novel suggested optimization model. Several simulation scenarios with various mobility speeds and numbers of stopped and parked vehicles have been run. The results showed that CRDS is better than LRCA, PASRP and CVoEG according to network overhead, average end to end delay, path stability, cluster head stability, and packet delivery ratio.
      PubDate: Tue, 31 Aug 2021 15:51:05 PDT
       
  • A new chaotic image cryptosystem based on plaintext-associated mechanism
           and integrated confusion-diffusion operation

    • Authors: Ahmed Kareem Shibeeb et al.
      Abstract: In modern chaotic image cryptosystems, the initial values generated for the chaotic system are carried out based on the hash function or summation result of the image pixels. Also, the confusion-diffusion structure is often typically split into two different components. However, it decreases the cryptosystem security because the independent structure can be cryptanalysis separately. A practical chaotic image cryptosystem based on plaintext-associated mechanism and integrated confusion-diffusion operation has been developed in this research paper to enhance the encryption reliability. The initial values of the four-dimensional chaotic system are updated by using the pixel values and locations to increase the sensitivity of plaintext images. Besides, the confusion and diffusion operations are correlated and intertwined with each other, where the proposed scheme applies a simultaneous confusion-diffusion process and rows-columns scrambling process. The simulation and experimental analysis demonstrate that the proposed cryptosystem is protected from possible attacks. Moreover, it provides a high performance compared to several other chaotic-based image cryptosystems.
      PubDate: Tue, 31 Aug 2021 15:51:02 PDT
       
  • Graphene as a Shielding Material for SAR Reduction in Human Head using
           Rectangular and Circular Patch Antenna

    • Authors: Alka Singla Er. et al.
      Abstract: Nanomaterials pave the way for better performance in wireless applications due to their unique properties. Nowadays, these have been used as shield material in dipole antennas for a solution of reduction in SAR value. This work proposes the use of emerging graphene nanomaterial by comparing the performance for two different shapes of patch antenna namely rectangular and circular patch. With the growth in technology, the protection of human health is also mandatory so the work is planned to use graphene as a shielding material for SAR reduction in the human brain and it is proved that for rectangular and circular patch applicators it attains the minimum value of SAR as 0.35 W/Kg and 0.17 W/Kg respectively. Also, antenna parameters using the reconfigurable property of graphene at microwave frequencies are estimated and observed that gain of 8.74 dB and return loss value of -22 dB is achieved for circular patch antenna and gain of 4.28 dB and return loss value of -18 dB is obtained for rectangular patch antenna. The results validate good performance in terms of radiation efficiency and minimum SAR value in comparison to the previously used antennas for shielding purposes.
      PubDate: Sun, 13 Jun 2021 10:31:56 PDT
       
  • MATHEMATICAL MODEL FOR MEASURING THE CONCENTRATION OF NANOPARTICLES IN A
           LIQUID DURING SEDIMENTATION

    • Authors: Safaa Mohammed Ridha Hussien Hussien et al.
      Abstract: Expanding the application areas of polymer composite materials with dispersed filler requires the development of technologies providing the required mechanical characteristics. One of these methods is based on forming a thin polymer shell on the surfaces of particles. At the same time, it is impossible to take into account the mechanical characteristics of a thin polymer shell due to its ultra-small thickness. The mechanical properties of the polymer shell can be determined only by indirect methods, and prior information can improve the adequacy of the properties determination. The method, which allows reducing the requirements for composite sample preparation, is proposed. This method is based on the sedimentation approach. It is suggested to evaluate the sedimentation time (or velocity) by measuring the optical density of the solution, consisting of nanoparticles and polymer macromolecules. The nanoparticle and polymer macromolecules parameters are defined using sedimentation time. The mathematical model for simulation of the photo sedimentation velocity of particles in a solvent is developed. The model considers the sedimentation process under the influence of gravity, hydrostatic lift, and drag forces. The model takes into account also the influence of the Brownian motion of the solvent on the particle movements based on elastic collision as well as the effect of the inelastic collision of particles with each other. The particle concentration is estimated based on beam light scattering modeling. The results of the mathematical model investigation and the experimental results confirm the feasibility of the proposed method. The results and estimations allow both to determine the sedimentation time and to formulate the method requirements for measuring particles of various sizes and densities. The proposed approach can be used to create equipment for nanoparticle parameters (mass, density) measuring.
      PubDate: Sun, 13 Jun 2021 10:31:46 PDT
       
  • Clustering and Neighbouring technique Based Energy-Efficient Routing for
           WSNs

    • Authors: Ahmed Adil Alkadhmawee et al.
      Abstract: Energy efficiency is the main prerequisite for the permanent and reliable operation of wireless sensor networks (WSNs). Clustering techniques are designed to build energy-efficient networks that enhance network lifetime. Clustering poses certain challenges that directly affect the network performance such as the cluster head selection and routing process. This paper proposes an approach called Clustering and Neighbouring technique Based Energy-Efficient Routing (CNBEER). The CNBEER approach utilises the clustering algorithm and neighbouring technique to prolong the network lifetime by reducing its total energy consumption. The clustering method divides a network into equal-sized clusters to mitigate inessential energy consumption. Moreover, the clustering algorithm selects a cluster head based on the G function which considers the current energy and position of the nodes of a base station. The cluster head changes dynamically depending on the G value to ensure that the energy consumed at the sensor nodes remains at an approximately equal rate. The CNBEER approach uses the neighbouring technique to discover the best multihop path to the base station. The performance of the proposed approach achieved improvement in the concept of residual energy and network lifetime compared with existing protocols.
      PubDate: Sun, 13 Jun 2021 10:31:37 PDT
       
  • Influence Maximization based on a Non-dominated Sorting Genetic Algorithm

    • Authors: Elaf Adel Abbas et al.
      Abstract: Influence Maximization (IM) is a problem represented by a set of users who are specified in advance and are usually called the seed. The latter can influence their friends, who can in turn influence others and so on until it reaches the largest number of users within the network. This issue is of ultimate importance in a variety of fields. In the current study, a Non-dominated Sorting Genetic Algorithm II (NSGA-II) has been adopted in influence maximization to produce the so-called NSGAII based IM algorithm (NSGAII-IM). Principally, the population should be represented with individuals of variable lengths as the seed group, and the diffusion model should be designed so as to formulate its multi-objective function. In the context of individual representation, the nodes have been pseudo-randomly chosen using the centrality measures (based on high centrality nodes as degree, closeness, and eigenvector). As for the multi-objective function, increasing the coverage size of influence and decreasing the number of seed nodes as far as possible have been set as the conflicting objectives. Weighted Integration Cascade (WIC) has been suggested as an improved version of the Independent Cascade (IC) diffusion model. It has proven to be effective in the performance of the NSGAII-IM algorithm. In evaluating the proposed optimization model, two real-world social network datasets have been used: Facebook wall posts, and Digg networks. The algorithm showed promising results as it could relatively improve the solutions as compared with other methods, with an increased average of influential spread. Additionally, the WIC model has proven to be effective through the evaluation of the performance of the NSGAII-IM algorithm with other diffusion models.
      PubDate: Sun, 13 Jun 2021 10:31:29 PDT
       
  • Role of Lepidium sativum in Treating Diabetes and Managing Bodily
           Functions’ Disorders in Rats.

    • Authors: Gehan El-Emary
      Abstract: : Lepidium sativum seed (LS) is a plant used globally for its medicinal effect in treating diabetes. This study examined the ability of an aqueous extract of LS to treat diabetes and manage disorders of bodily functions. It used 70 male Wistar rats, each weighing between 190 g and 200 g. Diabetes was established in the rats by injecting them with Alloxan Solution at 150 mg/kg of body weight. The rats were considered diabetic if, after 24 hours, their blood glucose levels were higher than 180 mg/dl. Diabetes caused severe alterations in their blood serum glucose (376.608 mg/dl); their kidney functions (84.512 mg/dl for urea, 4.716 mg/dl for uric acid, and 0.376 mg/dl for creatinine); their liver functions (46.150 U/L for ALT, 45.654 U/L for AST, 5.431 U/L for albumin, and 7.611 U/L for globulin); and their lipid profile (79.123 mg/dl for triglycerides, 121.113 mg/dl for total cholesterol, 62.776 mg/dl for LDL, and 27.453 mg/dl for HDL). The findings suggest that it is beneficial to use LS to treat and manage disorders of bodily functions in rats.
      PubDate: Sun, 13 Jun 2021 10:31:23 PDT
       
  • An Implementation of a Multi-Hop Underwater Wireless Sensor Network using
           Bowtie Antenna

    • Authors: Samuel Ryecroft Mr et al.
      Abstract: Water quality is a growing area of research, with more and more focus in the UK and globally on environmental issues and water quality. Current methods of monitoring environmental data such as air quality have continued to develop, spurred on by the growth of the Internet of Things. However, water quality monitoring mainly still depends on manual sample collection. This research presents the first implementation of a multi-hop underwater radio frequency sensor network using bowtie antennas combined with the 433 MHz frequency and a controlled flooding routing approach. The experimental work was conducted in the water reservoir and demonstrates the potential of multi-hop routing in underwater sensor networks to extend range to 19 meters as well as improvements on communication distances from 7 meters previously to 17 meters using radio frequency communications in an underwater environment. Simulated results show that the experimental platform used could enable the long-term deployment of an underwater wireless sensor network that used RF for periods of over a year with support for a 100 sensor node network broadcasting twice daily remaining active for 418 days or a 100 sensor node network broadcasting hourly remaining active for 406 days before any node deaths.
      PubDate: Sun, 13 Jun 2021 10:31:08 PDT
       
  • Prophylactic Phage Therapy in Infant Rabbits Model of cholera

    • Authors: sadeq AG Kaabi Asst Prof Dr
      Abstract: A number of 8 phages lytic of V. cholerae O1- biotype-EI-Tor, serotype Inaba were selected for the formulation of a phage cocktail. A phage cocktail composed of 8 phages was prepared and showed 100% inhibition of V. cholerae isolates comparing with a percentage ranged from 0-75% for every single phage in growth inhibition assay. The potential activity of phage cocktail of prophylactic therapy for infant rabbits model of cholera was evaluated through phage retention time and length of phage prophylaxis studies. Results have been showed that phage cocktail was potent in the prevention of development of cholera in infant rabbits dosed with 5 x 109 PFU of phage cocktail in 3, 12 , and 24 hours prior to infection with V. cholerae. The infant rabbits administered with the prophylactic dose of the phage cocktail showed no signs of profuse diarrhea and lost ˂10% of body weight after 20 hours of infection with V. cholerae comparing with the infant rabbits non-treated with prophylactic phage dose which lost 10-15% of the bodyweight within 10-14 hours after infection with V. cholerae. It is concluded that the results of the animal models confirmed the ability of phage therapy for cases of cholera and it is a highly promising alternative antimicrobial therapy for such cases.
      PubDate: Sun, 13 Jun 2021 10:31:01 PDT
       
  • Novel phenolic deep eutectic solvents for desulfurisation of petrodiesel

    • Authors: Idrees Bakr Qader et al.
      Abstract: In this work, a novel production of “deep eutectic solvents (DESs)” has been utilised for the elimination of sulfur composition, particularly from crude oil by liquid-liquid extraction. Herein, we present the first demonstration of the use of novel DESs formed by phenol, catechol, resorcinol and o-cresol as “hydrogen bond donors (HBDs)” with trimethyl hydroxyammonium chloride (ChCl) as the hydrogen bond acceptor to affect the efficient separation of organosulfur compounds from diesel. These DES electrolytes have been applied for the sulfur extraction from Iraqi real diesel fuel as determined using X-ray florescence sulfur measurements. The optimisation condition factors in this research have been studied, containing reaction time, the temperature of extraction process, the ratio of mass of diesel to DES and regeneration of DESs. The results indicated that phenol-based DESs extracted more than 38% of S-compounds from true diesel fuel when the mass ratio DES:fuel was 1:2 at 55 °C. Anhydrous ferric chloride (FeCl3) was also utilised as a catalyst in this work, where it was demonstrated that charge-dipole interaction between the DES and sulfide compounds was the key driving force behind the desulfurization process. We have shown that the extraction efficiency could be summarised as o-cresol + ChCl < catechol + ChCl < resorcinol + ChCl < phenol + ChCl. More than 44% of sulfur species could be removed when a 1:1:1 molar ratio of ChCl: phenol: acetic acid was utilised with H2O2 as an oxidant.
      PubDate: Fri, 12 Mar 2021 14:43:10 PST
       
  • Anticancer And Antiangiogenic Activities Of Alkaloids Isolated From
           Lantana Camara By Adsorption On The Magnetic Nanoparticles

    • Authors: Hussein Kadhem Al-Hakeim et al.
      Abstract: Lantana camara L. (L. camara) is a perennial shrub that contains low amounts of alkaloids. In the present study, the magnetic nanoparticles (MNPs) were used to isolate positively charged alkaloids from the methanolic extract of L. camara leaves. The crude alkaloid was fractionated using HPLC to separate the highest peak of the alkaloid fraction (HPAF). The crude alkaloids (CA) and HPAF were tested for their antiproliferative effect against cancer cell lines (MCF-7, HCT-116, and HeLa) and endothelial cells line (EA.hy926) as a standard cell line. Antiangiogenic properties were examined using rat aortic ring assay. HPAF exhibited a profound anticancer effect against MCF-7 and HeLa cell lines (with IC50 = 0.027 µg / mL and 5.90 µg / mL, respectively, while it displayed reasonably mild cytotoxicity against the HCT-116 cell line (IC50 = 8.38 µg / mL). The CA also demonstrated a significant anticancer effect against MCF-7 and HeLa and a weak cytotoxic effect against colon cancer HCT-116 cells. Cationic alkaloids displayed selective antiproliferative activity against HeLa while it was utterly safe on the normal test cell line. HPAF demonstrated remarkable antiangiogenic activity in non-toxic doses. Also, cationic alkaloids showed significant antiangiogenic effects. The use of magnetic nanoparticles (MNPs) to separate small quantities of precious compounds is handy and cost-effective.
      PubDate: Fri, 12 Mar 2021 14:42:57 PST
       
  • Mach-Zehnder quantum interference rules in hydrocarbons with substituents

    • Authors: Alaa Al-Jobory et al.
      Abstract: We have investigated the conditions of quantum interferences in hydrocarbons with substituents using density functional theory and tight binding approximation combined with non-equilibrium Green’s function technique. The chosen model systems, namely benzene and tripyridyl–triazine molecules, have elucidated three prominent rules. The ‘first rule’ is the occurrence of inevitable, destructive quantum interference when 1,3-benzene ring incorporates single substituent at the fifth site. The ‘second rule’ is the chaotic occurrence of quantum interferences due the position and/or type of the substituents. The ‘third rule’: the substituents decrease (increase) the probability of destructive (constructive) interferences
      PubDate: Fri, 12 Mar 2021 14:42:46 PST
       
  • Effect of PEG Addition on an SnO2 Gas Sensor Fabricated Using Spin Coating

    • Authors: Mohammed Abdulhur Kadhim Dr. et al.
      Abstract: Tin dioxide (SnO2) and tin dioxide: polyethylene glycol (SnO2: PEG) nano-composite thin films, at 10 and 20 wt % PEG, were fabricated by spin coating techniques from a mixed solution of ethanol and water. The structural, morphological, and optical properties of the prepared samples were examined to study the effect of PEG addition on SnO2 thin film properties. X-ray diffraction shows a polycrystalline structure for all samples, where the crystalline size reduced from 8.3 nm (for the pure sample) to 7.2 nm (for the 20% PEG sample). The addition of PEG with the precursors significantly affected the growth behaviour of SnO2 nanoparticles, where the nanoparticle diameter reduced and the connection between them was enhanced forming a continuous structure with pores that enhance gas sensitivity. The hydrogen (H2) gas sensitivity, for the prepared SnO2 and SnO2:PEG samples, increased by increasing the PEG content from 0 to 20% by about four times. The optimum sensitivity was at the working temperature of 100 °C. The gas sensitivity was exponentially dependent on H2 gas concentration across a concentration range of 100 to 4000 ppm.
      PubDate: Fri, 12 Mar 2021 14:42:32 PST
       
 
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