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97 articles for “mathematics”
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Research ArticleOpen accessIn the abstractEarly Greek Astrophysics: The Foundations of Modern Science and TechnologyXenophon MoussasThe foundations of modern science and technology, metrology, experimental physics, theoretical physics, theoretical mathematics, astrophysics, including applied optics and spectroscopy go back to the Prehistoric, Presocratic, Classical and Hellenistic Greece. This tradition is well deep rooted in time, going back mainly to the epoch of the prehistoric Aegean sea, the mainland of Greece and the Islands, Cycladic, Euboea, as well … …Space Science International, Vol. 1, Issue 2 · 4 Feb 2014 · 8,679 accessesView PDFCite
Research ArticleOpen accessIn the abstractComplexity in Human Perception of Brightness: A Historical Review on the Evolution of the Philosophy of Visual PerceptionKuntal Ghosh, Kamales BhaumikProblem statement: The “eye-brain” complex, which contributes maximally to visual perception, is no doubt a very interesting object for complexity study. In this review we shall try to present some of its aspects in perceiving brightness. It is a well-known fact that the perceived brightness of any surface depends on the brightness of the surfaces that surround it, a phenomenon … …OnLine Journal of Biological Sciences, Vol. 10, Issue 1 · 30 Jun 2010 · 8,680 accessesView PDFCite
Research ArticleOpen accessIn the abstractOptimal Control Techniques for the Role of Antiretroviral Therapy (ART) Abuse in HIV/AIDS Treatment DynamicsBassey Echeng Bassey, Adagba Odey HenryFrom the studies of HIV/AIDS transmission and treatment dynamicsusing mathematical modeling, literature reviews have shown that attention hadnot been given to the behavioral attitude of screen-aware infectives not readyto receive treatment, HIV-aware infectives that initiated treatment buttruncated only to resume treatment later (therapy abuse) and those onconsistent treatment protocols. Moreso, following the non-outright eradicationof the deadly HI-virus, recommendations have been … …Journal of Mathematics and Statistics, Vol. 18, Issue 1 · 24 Nov 2022 · 5,819 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Role of Mentoring in STEM Faculty Leadership to Broadening Participation in STEM Faculty and StudentsKula A. Francis, Karyl AskewMentoring in faculty development is seen as acatalyst to broaden the participation of underrepresented groups in Science,Technology, Engineering, and Mathematics (STEM) leadership. STEM facultyleaders are organizational influencers with or without formal authority orappointments. Within the fields of STEM,mentoring is often construed as more than senior faculty mentoring junior faculty. Thisstudy explores the perspectives of 13 professors and chairs at HistoricallyBlack … …Journal of Social Sciences, Vol. 18, Issue 1 · 14 Sep 2022 · 6,084 accessesView PDFCite
Research ArticleOpen accessIn the abstractLogic and the Mathematic Model of the Subject-Area Description for Corporate Information SystemsKonstantin Yurievich Maslenikov, Georgiy Ivanovich RevunkovAiming to build and receive a logic-mathematical substantiation and model of the process of constructing the description of any subject area for corporate information systems, the authors divided the subject area for building the system into constituent elements and the relationships between them. Using discrete mathematics methods to the graphs and two-seater predicates of the first order, we built an … …Journal of Computer Science, Vol. 18, Issue 1 · 2 Feb 2022 · 6,580 accessesView PDFCite
Research ArticleOpen accessIn the abstractBuilding Design Rule for Glass Structures by Persian CurveAbdolrasoul Ranjbaran, Mohammad Ranjbaran, Fatema RanjbaranGlass is being increasingly used as a structural material. Its favorable aesthetic qualities have made it popular with modern designers. Recently glass is used for major structural elements such as beams and columns in modern and innovative architectural applications. High slenderness ratios and brittle behavior in tension contribute to the complexity of stability and ultimate strength analysis of glass structures. … …International Journal of Structural Glass and Advanced Materials Research, Vol. 5, Issue 1 · 16 Jan 2021 · 8,408 accessesView PDFCite
Research ArticleOpen accessIn the abstractAccept and Apply Diversity? An Exploratory Study of the Attitudes towards Diversity of Students of STEM SubjectsPetia Genkova, Henrik SchreiberGerman universities are obligated to guarantee a fair learning-environment for students with diverse features. They also must prepare students for a highly diverse working environment. This means to develop awareness for diversity and to train intercultural competence. The present study takes an exploratory look at the extent to which diversity awareness is established among Science, Technology, Engineering and Mathematics (STEM) … …Journal of Social Sciences, Vol. 17, Issue 1 · 7 Jan 2021 · 7,545 accessesView PDFCite
Research ArticleOpen accessIn the abstractA Reliable Method of Analysis for Geotechnical DataAbdolrasoul Ranjbaran, Mohammad Ranjbaran, Fatema RanjbaranGeotechnical engineering is the art of making decisions in the presence of uncertainty, where real world problems are treated and this is associated with uncertainties arising from various sources. The sources of uncertainty may be divided into uncertainties of nature and uncertainties of mind. The uncertainties of nature are due to variation of encountered phenomena, e.g., the shear strength in … …International Journal of Structural Glass and Advanced Materials Research, Vol. 4, Issue 1 · 26 Dec 2020 · 7,573 accessesView PDFCite
EditorialOpen accessIn the abstractRETRACTED: Existence and Non-Existence of Super Mean Labeling on Star GraphsG. Uma Maheswari, Suzan Jabbar Obaiys, G. Margaret Joan Jebarani et al.This article has been retracted after careful consideration and internal assessment following a formal investigation into allegations of plagiarism. After careful review, it was found that substantial portions of the article—including theorems, definitions, diagrams, and proofs—were reproduced with minimal modification from previously published works without appropriate citation or acknowledgment. The reused content includes, but is not limited to, material from … …American Journal of Engineering and Applied Sciences, Vol. 13, Issue 4 · 13 Nov 2020 · 6,147 accessesView PDFCite
Research ArticleOpen accessIn the abstractPositive Solutions for Some Weighted Elliptic ProblemsHanadi ZahedIn this study, we study the existence and the nonexistence of positive solutions for the following nonlinear elliptic problems: (P) where, Ω is a regular bounded domain in ℝ , N ≥ 2, a(x) is a smooth function on and f(x, s) is asymptotically linear in s at infinity, that is = ℓ < ∞. We will prove that the … …Journal of Mathematics and Statistics, Vol. 16, Issue 1 · 21 Jul 2020 · 6,115 accessesView PDFCite