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541 results for “Mechanisms”
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Research ArticleOpen accessEvery word in the titleGeometric-Cinematic Synthesis of Planetary MechanismsNicolae Petrescu, Florian Ion Tiberiu PetrescuThe simple planetary mechanism is geometrically synthesized by determining the four tooth numbers of the component wheels. There are four main conditions that if not obeyed the mechanism will be blocked, will work with interruptions, or will not work at all. (a) The first condition in the geometric-kinematic synthesis of a simple planetary is the uniform loading of satellites (satellite … …American Journal of Engineering and Applied Sciences, Vol. 11, Issue 3 · 28 Aug 2018 · 7,463 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleNeurophysiological Mechanisms of Rapidity Quality Development in Female Students Going in for Basketball and Volleyball at Sports ClubsAngelina Shakhanova, Aida Cheuzheva, Ekaterina Kalnaya, Tatiana PetrovaUsing the “NS-Pshykho Test” certified software package (Ivanovo, Russia), we studied the measurements of Simple Hand-Eye Response time (SHER), tapping test frequency, time of Reaction To Moving Object (RMO), Critical Flicker Fusion Frequency (CFFF) in female students going and not going in for sports (volleyball, basketball) at sports clubs. The basis of neuromotor state is formed by variants of classical … …American Journal of Applied Sciences, Vol. 13, Issue 5 · 17 May 2016 · 7,608 accessesView PDFCite
Review ArticleOpen accessEvery word in the titleRole of Cytokines and Transcription Factors in Periodontitis: A Review of Cellular and Molecular MechanismsAnne Carolina Eleutério Leite, Valéria Martins de Araújo Carneiro, Júlia Faria Nunes et al.Periodontal Diseases (PD) are characterized by pathological manifestation of host immune response to bacterial infection at the tooth/gingival interface. Evidences points periodontitis as a risk factor for pathological systemic conditions, such as, cardiovascular diseases and diabetes. The identification of host factors that determine their susceptibility to immune subversion can provide useful information in the pathogenesis of periodontitis. Protective acute inflammatory … …American Journal of Immunology, Vol. 11, Issue 4 · 9 Dec 2015 · 7,809 accessesView PDFCite
Review ArticleOpen accessEvery word in the titleEffects of Dietary Nucleotides on Immune Mechanisms and Physical State in Children with Chronic Respiratory ProblemsRichter Josef, Svozil Vladimir, Král Vlastimil et al.Heavy industrial pollution and/or passive smoking negatively affect the overall immune health of a population. We used a model of children with chronic respiratory problems and evaluated the effects of short term supplementation of their diet with nucleotides. We measured the level of sIgA, eNO levels and total physical activity. We found positive effects of oral supplementation with commercially available … …American Journal of Immunology, Vol. 11, Issue 2 · 12 Jun 2015 · 7,189 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleREVIEW CLUSTERING MECHANISMS OF DISTRIBUTED DENIAL OF SERVICE ATTACKSWesam Bhaya, Mehdi Ebady ManaaDistributed Denial of Service attacks (DDoS) overwhelm network resources with useless or harmful packets and prevent normal users from accessing these network resources. These attacks jeopardize the confidentiality, privacy and integrity of information on the internet. Since it is very difficult to set any predefined rules to correctly identify genuine network traffic, an anomaly-based Intrusion Detection System (IDS) for network … …Journal of Computer Science, Vol. 10, Issue 10 · 26 Jun 2014 · 7,643 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleCurrent Trust Inference Mechanisms in Web Based Social NetworksZeinab Dehghan, Yahya AlMurtadha, Lai Ngan Kuen, Zailan Abdul SalamProblem statement: Nowadays, web based social networks have gained a lot of attention. Over one billion users participate, communicate and share information on these networks based on trust. Approach: One important issue on online social networks is how much one person can trust another person in the network whom they are not directly connected. Scholars around the world have introduced … …Journal of Computer Science, Vol. 8, Issue 9 · 11 Aug 2012 · 7,035 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleThe Body Calming and Body Vitalizing Effects of Vernonia Amygdalina Leaf Extract and Leaf Powder and their MechanismsUtoh-Nedosa Uchechukwu AnastasiaProblem statement: Vernonia amygdalina (V. amygdalina) leaf soup is regarded by the indigenous Igbo people of South Eastern Nigeria as their best leafy vegetable soup. Despite the bitterness of the bitter leaf soup, the native eaters of the soup feel very content when they eat pounded carbohydrate foods with it. Oral V. amygdalina leaf extract was taken methodically in this … …American Journal of Agricultural and Biological Sciences, Vol. 6, Issue 3 · 20 Sep 2011 · 8,165 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleEndothelial Dysfunction and Insulin Resistance as Pathophysiologic Mechanisms in a Rat Model of PreeclampsiaAyman Z. Elsamanoudy, Amr M. AbbasProblem statement: To assess the plasma concentrations and placental gene expression of soluble fms like tyrosine kinase (sFlt-1), Vascular Endothelial Growth Factor (VEGF), visfatin and Tumour Necrosis Factor α (TNFα) in a rat model of preeclampsia, induced by chronic Reduction of Uterine Perfusion Pressure (RUPP) and to investigate the involvement of Insulin Resistance (IR) in the pathophysiology of preeclampsia and … …American Journal of Biochemistry and Biotechnology, Vol. 6, Issue 3 · 30 Sep 2010 · 7,509 accessesView PDFCite
Research ArticleOpen accessIn the keywordsExplainable MedAttn-ResNet50 for Automated Kidney Tumor Classification from CT Images With Grad-CAM VisualizationD. Vetrithangam, Pramod Kumar, Shilpasree S. et al.Kidney tumor classification from CT imaging remains challenging due to CT-specific intensity variations, tumor heterogeneity, and limited clinically meaningful interpretability in existing deep learning models. To address these limitations, we propose an Explainable MedAttn-ResNet50 framework that integrates radiology-driven preprocessing, multi-scale feature extraction, and medical attention mechanisms within a unified architecture. The preprocessing pipeline applies radiology-inspired intensity normalization, contrast enhancement, and … …Journal of Computer Science, Vol. 22, Issue 8 · 13 Aug 2026 · 1,127 accessesView PDFCite
Review ArticleOpen accessIn the keywordsA Systematic Review of Adversarial Attacks: ML Techniques, Classification and CountermeasuresBhavesh Kumar Sharma, Sanatan Ratna, Rajiv KumarMachine Learning (ML) and Deep Learning (DL)-based technologies have made significant strides in areas such as computer vision, natural language processing, and autonomous systems. Yet they have been applied in high-stake applications, and have been found to be fragile through adversarial attacks-, maliciously crafted small distortions that fool models into making mistakes. From the pioneering work by Szegedy et al. … …Journal of Computer Science, Vol. 22, Issue 5 · 19 May 2026 · 1,511 accessesView PDFCite