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53 results for “physical mechanism”
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Review ArticleOpen accessIn the abstractUnraveling the Mechanisms of Plant Structural Defenses against Insect PestsAroni Preya Biswas, Roksana Al Nafiu Insha, Md. Khairul Mazed et al.Plants employ a variety of physical, chemical, and genetic strategies to defend against herbivore attacks. These biochemical defense mechanisms are complex and dynamic, encompassing both direct and indirect responses. Defense-related chemicals, whether constitutive or induced by herbivore damage, significantly influence herbivore feeding behavior, growth, and survival. Plant defense systems impact herbivore nutrition, development, and survival, highlighting the importance of chemical … …OnLine Journal of Biological Sciences, Vol. 25, Issue 1 · 7 Jan 2025 · 5,796 accessesView PDFCite
Research ArticleOpen accessIn the abstractPerformance Evaluation of Blackhole Attack on AODV in VANETTaha SaadBlack hole is one of the ongoing network threats that impact the physical components of Vehicular Ad hoc Networks (VANETs) when more layers deal with routing mechanism of vehicular ad hoc network. An algorithm for Ad hoc On-Demand Distance Vector (AODV) protocol in VANET was developed in order to identify collaborative group of nodes that behave as black hole. The … …American Journal of Applied Sciences, Vol. 15, Issue 2 · 6 Nov 2017 · 8,411 accessesView PDFCite
Research ArticleOpen accessIn the abstractSerial, Anthropomorphic, Spatial, Mechatronic Systems can be Studied More Simply in a PlanRelly Victoria Virgil Petrescu, Raffaella Aversa, Antonio Apicella et al.The mobile, mechatronic, robotic, serial, spatial, anthropomorphic type systems, which are currently the most used in the machine building industry, can be studied much more simply in a plan instead of the usual spatial study. This not only simplifies the understanding of these systems (including from a didactic point of view) but also facilitates computational methods, moving from matrix analytical … …Journal of Mechatronics and Robotics, Vol. 1, Issue 2 · 20 Dec 2017 · 6,446 accessesView PDFCite
Review ArticleOpen accessIn the abstractDrug Interactions Pharmacology: A Narrative ReviewLívia Maria Barbosa Neves, Louryanne de Castro Silva, Mônica Thalia Brito de Melo et al.Thesimultaneous prescription of multiple drugs used in therapeutic schemes canresult in drug interactions, with desirable or undesirable effects. Thus, theobjective of this study was to describe the mechanisms involved in clinicallyrelevant drug interactions. This is a narrative review in which studiespublished in PUBMED and the VHL were searched in the following databases:MedLine, Lilacs, and Scielo. The search was performed in … …American Journal of Pharmacology and Toxicology, Vol. 17, Issue 1 · 25 Oct 2022 · 9,161 accessesView PDFCite
Review ArticleOpen accessIn the abstractImmunology of Septic Shock and Traumatic Injury: A ReviewWilliam Heuser, Marianne Frieri, Krishan Kumar, Anthony BoutinSepsis remains a major worldwide cause of morbidity and mortality and remains amongst the leading causes of death in medical Intensive Care Units (ICUs). Increasing injury severity associated with trauma is a significant independent risk factor for sepsis and many of these patients require intensive care unit resource utilization with increased rates of mortality. There are many postulated theories regarding … …American Journal of Immunology, Vol. 11, Issue 4 · 31 Dec 2015 · 7,004 accessesView PDFCite
Review ArticleOpen accessIn the abstractMulti-Timescale Microscopic Theory for Radiation Degradation of Electronic and Optoelectronic DevicesDanhong Huang, Fei Gao, D.A. Cardimona et al.A multi-timescale hybrid model is proposed to study microscopically the degraded performance of electronic devices, covering three individual stages of radiation effects studies, including ultra-fast displacement cascade, intermediate defect stabilization and cluster formation, as well as slow defect reaction and migration. Realistic interatomic potentials are employed in molecular-dynamics calculations for the first two stages up to 100 ns as well … …Space Science International, Vol. 3, Issue 1 · 15 Jun 2015 · 10,238 accessesView PDFCite
EditorialOpen accessIn the abstractUse of Design of Experiments and Manuscripts Rejection RateAydin Berenjian, Jason RyanTraditional one-variable-at-a-time method was and still is for some researchers, the general procedure to determine the optimal conditions for a chemical, biochemical or biological mechanism. According to this technique, a large number of experiments should be performed to obtain a high precision in effect assessment and also the interaction among the variables cannot be defined. To overcome the limitations of … …American Journal of Biochemistry and Biotechnology, Vol. 11, Issue 2 · 8 Jun 2015 · 7,174 accessesView PDFCite
EditorialOpen accessIn the abstractProblems of Ultra-High Energy Cosmic RaysAnna V. UrysonCosmic rays are energetic particles coming to the Earth from space. They bombard the atmosphere producing cascades of particles that spread over a large area when they reach the ground. Cosmic ray energies vary in the wide band from about 108 eV up to few 1020 eV. It is established that most particles with energies of ~ (108-109) eV come … …Space Science International, Vol. 2, Issue 1 · 6 Dec 2014 · 13,865 accessesView PDFCite
Research ArticleOpen accessIn the abstractSTUDY OF THE POSSIBILITY OF POLYTYPE 3C SILICON CARBIDE BULK CRYSTALS GROWING FOR USE IN POWER DEVICESLebedev Alexander Alexandrovich, Bulat Pavel ViktorovichDue to its electro-physical parameters, the silicon carbide is a promising material for power devices, including the microwave range. In recent years there has been considerable progress in the development of power devices, based on SiC. Serious problem, which hinders the widespread commercialization of SiC bipolar power devices, is the p-n structures degradation during high densities of passing forward current. … …American Journal of Applied Sciences, Vol. 11, Issue 10 · 5 Dec 2014 · 6,355 accessesView PDFCite
Research ArticleOpen accessIn the abstractON THE ABSENCE OF ANTIMATTER FROM THE UNIVERSE, DARK MATTER, THE FINE STRUCTURE PARAMETER, THE FLUCTUATIONS OF THE COSMIC MICROWAVE BACKGROUND RADIATION AND THE TEMPERATURE DIFFERENCE BETWEEN THE NORTHERN AND SOUTHERN HEMISPHERE OF THE UNIVERSEEmmanuil ManousosThe theory of selfvariations correlates five cosmological observations considered to be unrelated by the physical theories of the previous century. The absence of antimatter from the Universe, the Dark Matter, the slight variation of the fine structure parameter, the temperature fluctuations of the cosmic microwave background radiation and the temperature difference between the northern and southern hemisphere of the Universe … …Physics International, Vol. 5, Issue 1 · 28 Nov 2014 · 8,886 accessesView PDFCite