Results for 'Protein α-helix'

149 found
Order:
  1. Launching of Davydov solitons in protein α-helix spines.Danko D. Georgiev & James F. Glazebrook - 2020 - Physica E: Low-Dimensional Systems and Nanostructures 124:114332.
    Biological order provided by α-helical secondary protein structures is an important resource exploitable by living organisms for increasing the efficiency of energy transport. In particular, self-trapping of amide I energy quanta by the induced phonon deformation of the hydrogen-bonded lattice of peptide groups is capable of generating either pinned or moving solitary waves following the Davydov quasiparticle/soliton model. The effect of applied in-phase Gaussian pulses of amide I energy, however, was found to be strongly dependent on the site of (...)
    Download  
     
    Export citation  
     
    Bookmark   1 citation  
  2. Thermal stability of solitons in protein α-helices.Danko D. Georgiev & James F. Glazebrook - 2022 - Chaos, Solitons and Fractals 155:111644.
    Protein α-helices provide an ordered biological environment that is conducive to soliton-assisted energy transport. The nonlinear interaction between amide I excitons and phonon deformations induced in the hydrogen-bonded lattice of peptide groups leads to self-trapping of the amide I energy, thereby creating a localized quasiparticle (soliton) that persists at zero temperature. The presence of thermal noise, however, could destabilize the protein soliton and dissipate its energy within a finite lifetime. In this work, we have computationally solved the system (...)
    Download  
     
    Export citation  
     
    Bookmark  
  3. Quantum transport and utilization of free energy in protein α-helices.Danko D. Georgiev & James F. Glazebrook - 2020 - Advances in Quantum Chemistry 82:253-300.
    The essential biological processes that sustain life are catalyzed by protein nano-engines, which maintain living systems in far-from-equilibrium ordered states. To investigate energetic processes in proteins, we have analyzed the system of generalized Davydov equations that govern the quantum dynamics of multiple amide I exciton quanta propagating along the hydrogen-bonded peptide groups in α-helices. Computational simulations have confirmed the generation of moving Davydov solitons by applied pulses of amide I energy for protein α-helices of varying length. The stability (...)
    Download  
     
    Export citation  
     
    Bookmark   1 citation  
  4. Quantum tunneling of three-spine solitons through excentric barriers.Danko D. Georgiev & James F. Glazebrook - 2022 - Physics Letters A 448:128319.
    Macromolecular protein complexes catalyze essential physiological processes that sustain life. Various interactions between protein subunits could increase the effective mass of certain peptide groups, thereby compartmentalizing protein α-helices. Here, we study the differential effects of applied massive barriers upon the soliton-assisted energy transport within proteins. We demonstrate that excentric barriers, localized onto a single spine in the protein α-helix, reflect or trap three-spine solitons as effectively as concentric barriers with comparable total mass. Furthermore, wider (...) solitons, whose energy is lower, require heavier massive barriers for soliton reflection or trapping. Regulation of energy transport, delivery and utilization at protein active sites could thus be achieved through control of the soliton width, or of the effective mass of the protein subunits. (shrink)
    Download  
     
    Export citation  
     
    Bookmark  
  5. Strategies to Overcome Collaborative Innovation Barriers: The Role of Training to Foster Skills to Navigate Quadruple Helix Innovations.Luisa Barbosa-Gomez & Vincent Blok - 2023 - Journal of the Knowledge Economy.
    Quadruple Helix Collaborations (QHCs) is a cooperation model in which industry, government, academia, and the public interact to innovate. This paper analyses the impact of a training intervention to provide specific knowledge, skills, and attitudes to deal with barriers commonly found in the progress of QHCs. We designed, implemented, and evaluated three training programs in Austrian, Colombian, Danish, and Spanish institutions. We analysed trainees’ (n = 66) and trainers’ (n = 9) perceptions to identify the competencies acquired with the (...)
    Download  
     
    Export citation  
     
    Bookmark  
  6. The Protein Ontology: A structured representation of protein forms and complexes.Darren Natale, Cecilia N. Arighi, Winona C. Barker, Judith A. Blake, Carol J. Bult, Michael Caudy, Harold J. Drabkin, Peter D’Eustachio, Alexei V. Evsikov, Hongzhan Huang, Jules Nchoutmboube, Natalia V. Roberts, Barry Smith, Jian Zhang & Cathy H. Wu - 2011 - Nucleic Acids Research 39 (1):D539-D545.
    The Protein Ontology (PRO) provides a formal, logically-based classification of specific protein classes including structured representations of protein isoforms, variants and modified forms. Initially focused on proteins found in human, mouse and Escherichia coli, PRO now includes representations of protein complexes. The PRO Consortium works in concert with the developers of other biomedical ontologies and protein knowledge bases to provide the ability to formally organize and integrate representations of precise protein forms so as to (...)
    Download  
     
    Export citation  
     
    Bookmark   11 citations  
  7. Protein Ontology: Enhancing and scaling up the representation of protein entities.Darren A. Natale, Cecilia N. Arighi, Judith A. Blake, Jonathan Bona, Chuming Chen, Sheng-Chih Chen, Karen R. Christie, Julie Cowart, Peter D'Eustachio, Alexander D. Diehl, Harold J. Drabkin, William D. Duncan, Hongzhan Huang, Jia Ren, Karen Ross & Alan Ruttenberg - 2017 - Nucleic Acids Research 45 (D1):D339-D346.
    The Protein Ontology (PRO; http://purl.obolibrary.org/obo/pr) formally defines and describes taxon-specific and taxon-neutral protein-related entities in three major areas: proteins related by evolution; proteins produced from a given gene; and protein-containing complexes. PRO thus serves as a tool for referencing protein entities at any level of specificity. To enhance this ability, and to facilitate the comparison of such entities described in different resources, we developed a standardized representation of proteoforms using UniProtKB as a sequence reference and PSI-MOD (...)
    Download  
     
    Export citation  
     
    Bookmark   1 citation  
  8. Protein Ontology: A controlled structured network of protein entities.A. Natale Darren, N. Arighi Cecilia, A. Blake Judith, J. Bult Carol, R. Christie Karen, Cowart Julie, D’Eustachio Peter, D. Diehl Alexander, J. Drabkin Harold, Helfer Olivia, Barry Smith & Others - 2013 - Nucleic Acids Research 42 (1):D415-21..
    The Protein Ontology (PRO; http://proconsortium.org) formally defines protein entities and explicitly represents their major forms and interrelations. Protein entities represented in PRO corresponding to single amino acid chains are categorized by level of specificity into family, gene, sequence and modification metaclasses, and there is a separate metaclass for protein complexes. All metaclasses also have organism-specific derivatives. PRO complements established sequence databases such as UniProtKB, and interoperates with other biomedical and biological ontologies such as the Gene Ontology (...)
    Download  
     
    Export citation  
     
    Bookmark  
  9. Protein-centric connection of biomedical knowledge: Protein Ontology research and annotation tools.Cecilia N. Arighi, Darren A. Natale, Judith A. Blake, Carol J. Bult, Michael Caudy, Alexander D. Diehl, Harold J. Drabkin, Peter D'Eustachio, Alexei Evsikov, Hongzhan Huang, Barry Smith & Others - 2011 - In Landgrebe Jobst & Smith Barry (eds.), Proceedings of the 2nd International Conference on Biomedical Ontology. CEUR, vol. 833. pp. 285-287.
    The Protein Ontology (PRO) web resource provides an integrative framework for protein-centric exploration and enables specific and precise annotation of proteins and protein complexes based on PRO. Functionalities include: browsing, searching and retrieving, terms, displaying selected terms in OBO or OWL format, and supporting URIs. In addition, the PRO website offers multiple ways for the user to request, submit, or modify terms and/or annotation. We will demonstrate the use of these tools for protein research and annotation.
    Download  
     
    Export citation  
     
    Bookmark  
  10. TGF-beta signaling proteins and the Protein Ontology.Arighi Cecilia, Liu Hongfang, Natale Darren, Barker Winona, Drabkin Harold, Blake Judith, Barry Smith & Wu Cathy - 2009 - BMC Bioinformatics 10 (Suppl 5):S3.
    The Protein Ontology (PRO) is designed as a formal and principled Open Biomedical Ontologies (OBO) Foundry ontology for proteins. The components of PRO extend from a classification of proteins on the basis of evolutionary relationships at the homeomorphic level to the representation of the multiple protein forms of a gene, including those resulting from alternative splicing, cleavage and/or posttranslational modifications. Focusing specifically on the TGF-beta signaling proteins, we describe the building, curation, usage and dissemination of PRO. PRO provides (...)
    Download  
     
    Export citation  
     
    Bookmark   2 citations  
  11. The representation of protein complexes in the Protein Ontology.Carol Bult, Harold Drabkin, Alexei Evsikov, Darren Natale, Cecilia Arighi, Natalia Roberts, Alan Ruttenberg, Peter D’Eustachio, Barry Smith, Judith Blake & Cathy Wu - 2011 - BMC Bioinformatics 12 (371):1-11.
    Representing species-specific proteins and protein complexes in ontologies that are both human and machine-readable facilitates the retrieval, analysis, and interpretation of genome-scale data sets. Although existing protin-centric informatics resources provide the biomedical research community with well-curated compendia of protein sequence and structure, these resources lack formal ontological representations of the relationships among the proteins themselves. The Protein Ontology (PRO) Consortium is filling this informatics resource gap by developing ontological representations and relationships among proteins and their variants and (...)
    Download  
     
    Export citation  
     
    Bookmark   5 citations  
  12. Framework for a protein ontology.Darren A. Natale, Cecilia N. Arighi, Winona Barker, Judith Blake, Ti-Cheng Chang, Zhangzhi Hu, Hongfang Liu, Barry Smith & Cathy H. Wu - 2007 - BMC Bioinformatics 8 (Suppl 9):S1.
    Biomedical ontologies are emerging as critical tools in genomic and proteomic research where complex data in disparate resources need to be integrated. A number of ontologies exist that describe the properties that can be attributed to proteins; for example, protein functions are described by Gene Ontology, while human diseases are described by Disease Ontology. There is, however, a gap in the current set of ontologies—one that describes the protein entities themselves and their relationships. We have designed a (...) Ontology (PRO) to facilitate protein annotation and to guide new experiments. The components of PRO extend from the classification of proteins on the basis of evolutionary relationships to the representation of the multiple protein forms of a gene (products generated by genetic variation, alternative splicing, proteolytic cleavage, and other post-translational modification). PRO will allow the specification of relationships between PRO, GO and other OBO Foundry ontologies. Here we describe the initial development of PRO, illustrated using human proteins from the TGF-beta signaling pathway. (shrink)
    Download  
     
    Export citation  
     
    Bookmark   12 citations  
  13.  78
    Responsible innovation across societal sectors: a practice perspective on Quadruple Helix collaboration.Johannes Starkbaum & Vincent Blok - 2024 - Journal of Responsible Innovation 1 (1):1.
    To address societal challenges, research and innovation approaches, involving a wide range of actors, are increasingly promoted by policy communities. This paper explores the practice of Quadruple Helix collaborations for responsible innovation and how these implement the theoretical ambition of including actors from different societal sectors in innovation, including actors from the fields of arts, media and civil society, which is conceptualized as the Fourth Helix in this concept. Referring to cross-sector collaboration literature and based on an empirical (...)
    Download  
     
    Export citation  
     
    Bookmark  
  14. A Processual Approach to friction in Quadruple Helix Collaborations.E. Popa, Vincent Blok & R. Wesselink - 2020 - Science and Public Policy 6 (47):876-889.
    R&D collaborations between industry, government, civil society, and research (also known as ‘quadruple helix collaborations’ (QHCs)) have recently gained attention from R&D theorists and practitioners. In aiming to come to grips with their complexity, past models have generally taken a stakeholder-analytical approach based on stakeholder types. Yet stakeholder types are difficult to operationalise. We therefore argue that a processual model is more suited for studying the interaction in QHCs because it eschews matters of titles and identities. We develop such (...)
    Download  
     
    Export citation  
     
    Bookmark  
  15. A Processual Approach To Friction in Quadruple Helix Collaborations.O. E. Popa, V. Blok & R. Wesselink - 2021 - Science and Public Policy 47 (6):876-889.
    R&D collaborations between industry, government, civil society, and research ) have recently gained attention from R&D theorists and practitioners. In aiming to come to grips with their complexity, past models have generally taken a stakeholder-analytical approach based on stakeholder types. Yet stakeholder types are difficult to operationalise. We therefore argue that a processual model is more suited for studying the interaction in QHCs because it eschews matters of titles and identities. We develop such a model in which the QHC is (...)
    Download  
     
    Export citation  
     
    Bookmark   2 citations  
  16. Where Do You Get Your Protein? Or: Biochemical Realization.Tuomas E. Tahko - 2020 - British Journal for the Philosophy of Science 71 (3):799-825.
    Biochemical kinds such as proteins pose interesting problems for philosophers of science, as they can be studied from the points of view of both biology and chemistry. The relationship between the biological functions of biochemical kinds and the microstructures that they are related to is the key question. This leads us to a more general discussion about ontological reductionism, microstructuralism, and multiple realization at the biology-chemistry interface. On the face of it, biochemical kinds seem to pose a challenge for ontological (...)
    Download  
     
    Export citation  
     
    Bookmark   14 citations  
  17. SNARE proteins as molecular masters of interneuronal communication.Danko D. Georgiev & James F. Glazebrook - 2010 - Biomedical Reviews 21:17-23.
    In the beginning of the 20th century the groundbreaking work of Ramon y Cajal firmly established the neuron doctrine, according to which neurons are the basic structural and functional units of the nervous system. Von Weldeyer coined the term “neuron” in 1891, but the huge leap forward in neuroscience was due to Cajal’s meticulous microscopic observations of brain sections stained with an improved version of Golgi’s la reazione nera (black reaction). The latter improvement of Golgi’s technique made it possible to (...)
    Download  
     
    Export citation  
     
    Bookmark   1 citation  
  18. A framework for protein classification.Anand Kumar & Barry Smith - 2003 - In Anand Kumar & Barry Smith (eds.), Proceedings of the 2003 German Conference on Bioinformatics, Vol. II. pp. 55-57.
    It is widely understood that protein functions can be exhaustively described in terms of no single parameter, whether this be amino acid sequence or the three-dimensional structure of the underlying protein molecule. This means that a number of different attributes must be used to create an ontology of protein functions. Certainly much of the required information is already stored in databases such as Swiss-Prot, Protein Data Bank, SCOP and MIPS. But the latter have been developed for (...)
    Download  
     
    Export citation  
     
    Bookmark   2 citations  
  19. Model for DNA and Protein Interactions and the Function of the Operator.Alfred Gierer - 1966 - Nature 212:1480-1481.
    The short paper introduces the concept of possible branches of double-stranded DNA (later sometimes called palindromes): Certain sequences of nucleotides may be followed, after a short unpaired stretch, by a complementary sequence in reversed order, such that each DNA strand can fold back on itself, and the DNA assumes a cruciform or tree-like structure. This is postulated to interact with regulatory proteins. -/- .
    Download  
     
    Export citation  
     
    Bookmark   1 citation  
  20. Function of aggregated reticulocyte ribosomes in protein synthesis.Alfred Gierer - 1963 - J. Mol. Biol 6:148-157.
    Applying mild methods of preparation, part of the ribosomes of rabbit reticulocytes are found in aggregates (later called polyribosomes) of up to six ribosomal units. Upon treatment with RNA-ase, they desintegrate into single ribosomes. The fast-sedimenting aggregates are found to be more active in protein synthesis in terms of incorporation of radioactive amino acids, whereas the single ribosomes are more receptive to stimulation by the artificial messenger RNA poly-U. The findings indicate that the linkage of ribosomes into aggregates is (...)
    Download  
     
    Export citation  
     
    Bookmark   1 citation  
  21. (1 other version)A Monist Proposal: Against Integrative Pluralism About Protein Structure.Agnes Bolinska - 2022 - Erkenntnis 1 (4).
    Mitchell & Gronenborn propose that we account for the presence of multiple models of protein structure, each produced in different contexts, through the framework of integrative pluralism. I argue that two interpretations of this framework are available, neither of which captures the relationship between a model and the protein structure it represents or between multiple models of protein structure. Further, it inclines us toward concluding prematurely that models of protein structure are right in their contexts and (...)
    Download  
     
    Export citation  
     
    Bookmark  
  22. Toll-like receptor signaling in vertebrates: Testing the integration of protein, complex, and pathway data in the Protein Ontology framework.Cecilia Arighi, Veronica Shamovsky, Anna Maria Masci, Alan Ruttenberg, Barry Smith, Darren Natale, Cathy Wu & Peter D’Eustachio - 2015 - PLoS ONE 10 (4):e0122978.
    The Protein Ontology provides terms for and supports annotation of species-specific protein complexes in an ontology framework that relates them both to their components and to species-independent families of complexes. Comprehensive curation of experimentally known forms and annotations thereof is expected to expose discrepancies, differences, and gaps in our knowledge. We have annotated the early events of innate immune signaling mediated by Toll-Like Receptor 3 and 4 complexes in human, mouse, and chicken. The resulting ontology and annotation data (...)
    Download  
     
    Export citation  
     
    Bookmark   5 citations  
  23. Estimation of C-Reactive Protein, Immunoglobulin’s and Complements in SCD Patients.Maha Khalaf Al-Mishry, Nadhim K. Mahdi & Sadeq K. Ali AlSalait - 2018 - International Journal of Academic Health and Medical Research (IJAHMR) 2 (6):1-4.
    Abstract: Sickle cell disease (SCD) comprises an inherited blood disorder that is life long and affects many people globally. Despite progress in therapy, SCA is a considerable cause of mortality and morbidity. This study was designed to measure the immunological and inflammatory parameters of patients with sickle cell disease (SCD) and to found if there is any role of it in the pathogenicity of the disease. This study included A total of 32 patients, their ages ranged from 16 to 55 (...)
    Download  
     
    Export citation  
     
    Bookmark  
  24. In the chaos of today's society: The dynamics of collapse as another shift in the quantum anthropology of Heidi Ann Russell.Radek Trnka - 2015 - Prague: Togga.
    The presented study introduces a new theoretical model of collapse for social, cultural, or political systems. Based on the current form of quantum anthropology conceptualized by Heidi Ann Russell, further development of this field is provided. The new theoretical model is called the spiral model of collapses, and is suggested to provide an analytical framework for collapses in social, cultural, and political systems. The main conclusions of this study are: 1) The individual crises in the period before a collapse of (...)
    Download  
     
    Export citation  
     
    Bookmark   1 citation  
  25. Crick's Adaptor Hypothesis and the Discovery of Transfer RNA: Experiment Surpassing Theoretical Prediction.Michael Fry - 2022 - Philosophy, Theory, and Practice in Biology 14 (11):1-31.
    Historically, hypotheses failed in most cases to correctly forecast the workings of complex biological systems. Francis Crick’s adaptor hypothesis, however, stands out as an exceptional case of a confirmed abstract prediction. This hypothesis presciently anticipated the existence of RNA adaptors that function as bridges between amino acids and the chemically different nucleic acid template for proteins. Crick conjectured that the adaptors are enzymatically charged with cognate amino acids, they bind to complementary protein-coding nucleic acid, and their liberated amino acids (...)
    Download  
     
    Export citation  
     
    Bookmark  
  26. Towards a proteomics meta-classification.Anand Kumar & Barry Smith - 2004 - In Kumar Anand & Smith Barry (eds.), IEEE Fourth Symposium on Bioinformatics and Bioengineering, Taichung, Taiwan. IEEE Press. pp. 419–427.
    that can serve as a foundation for more refined ontologies in the field of proteomics. Standard data sources classify proteins in terms of just one or two specific aspects. Thus SCOP (Structural Classification of Proteins) is described as classifying proteins on the basis of structural features; SWISSPROT annotates proteins on the basis of their structure and of parameters like post-translational modifications. Such data sources are connected to each other by pairwise term-to-term mappings. However, there are obstacles which stand in the (...)
    Download  
     
    Export citation  
     
    Bookmark   5 citations  
  27. Two Dogmas of Biology.Leonore Fleming - 2017 - Philosophy, Theory, and Practice in Biology 9 (2).
    The problem with reductionism in biology is not the reduction, but the implicit attitude of determinism that usually accompanies it. Methodological reductionism is supported by deterministic beliefs, but making such a connection is problematic when it is based on an idea of determinism as fixed predictability. Conflating determinism with predictability gives rise to inaccurate models that overlook the dynamic complexity of our world, as well as ignore our epistemic limitations when we try to model it. Furthermore, the assumption of a (...)
    Download  
     
    Export citation  
     
    Bookmark   1 citation  
  28. Medicinal Uses of Cashew (Anacardium occidentale): Review.Akram Muhammad & Talha Muhammad - 2021 - Journal of Science Technology and Research (JSTAR) 2 (1):1-10.
    The cashew nut is essential for physical and emotional well-being. It is an energetic diet and the best food medication for many illnesses. Nuts protects from malignant growth, coronary illness, circulatory strain, and various degenerative infirmities connected to aging. It can be used for several medicinal purposes. Every part of cashew has some important medicinal properties. Cashew kernel contains proteins, carbohydrates, vitamins, and fats which help gain energy. Cashew nuts are used for many purposes like blood sugar, weight loss, cancer, (...)
    Download  
     
    Export citation  
     
    Bookmark  
  29. Biochemical Kinds.Jordan Bartol - 2014 - British Journal for the Philosophy of Science (2):axu046.
    Chemical kinds (e.g. gold) are generally treated as having timelessly fixed identities. Biological kinds (e.g. goldfinches) are generally treated as evolved and/or evolving entities. So what kind of kind is a biochemical kind? This paper defends the thesis that biochemical molecules are clustered chemical kinds, some of which–namely, evolutionarily conserved units–are also biological kinds.On this thesis, a number of difficulties that have recently occupied philosophers concerned with proteins and kinds are shown to be resolved or dissolved.
    Download  
     
    Export citation  
     
    Bookmark   14 citations  
  30. Infectivity of ribonucleic acid from Tobacco Mosaic Virus.Alfred Gierer & Gerhard Schramm - 1956 - Nature 177:702-703.
    Upon separation of the protein from the nucleic acid component of tobacco mosaic virus by phenol, using a fast and gentle procedure, the nucleic acid is infective in assays on tobacco leaves. A series of qualitative and quantitative control experiments demonstrates that the biological activity cannot depend on residual proteins in the preparation, but is a property of isolated nucleic acid which is thus the genetic material of the virus.
    Download  
     
    Export citation  
     
    Bookmark   9 citations  
  31. Macromolecular Pluralism.Matthew H. Slater - 2009 - Philosophy of Science 76 (5):851-863.
    Different chemical species are often cited as paradigm examples of structurally delimited natural kinds. While classificatory monism may thus seem plausible for simple molecules, it looks less attractive for complex biological macromolecules. I focus on the case of proteins that are most plausibly individuated by their functions. Is there a single, objective count of proteins? I argue that the vagaries of function individuation infect protein classification. We should be pluralists about macromolecular classification.
    Download  
     
    Export citation  
     
    Bookmark   22 citations  
  32. Fish Classification Using Deep Learning.M. N. Ayyad & Samy S. Abu-Naser - 2024 - International Journal of Academic Information Systems Research (IJAISR) 8 (4):51-58.
    Abstract: Fish are important for both nutritional and economic reasons. They are a good source of protein, vitamins, and minerals and play a significant role in human diets, especially in coastal and island communities. In addition, fishing and fish farming are major industries that provide employment and income for millions of people worldwide. Moreover, fish play a critical role in marine ecosystems, serving as prey for larger predators and helping to maintain the balance of aquatic food chains. Overall, fish (...)
    Download  
     
    Export citation  
     
    Bookmark  
  33. The Evolution of Consciousness & Subjectivity in a Biological Framework for The Universe.Ronald Williams - manuscript
    This paper explores the evolution of consciousness and subjectivity through a biological framework for understanding the universe. It posits that functional patterns in biological systems mirror cosmic mathematical principles, defining our objective reality. Similar to wave and Fibonacci patterns in different physical phenomena, biological patterns are intrinsic to all things and can be quantified using Dedre Gentner’s approach to analogy. For example, Earth’s ocean currents and the melting and freezing of Antarctica resemble the circulatory system and heart, while the production (...)
    Download  
     
    Export citation  
     
    Bookmark   4 citations  
  34. A New method for Analysis of Biomolecules Using the BSM-SG Atomic Models.Stoyan Sarg Sargoytchev - 2017 - J. Biom Biostat 8 (2):1000339.
    Biomolecules and particularly proteins and DNA exhibit some mysterious features that cannot find satisfactory explanation by quantum mechanical modes of atoms. One of them, known as a Levinthal’s paradox, is the ability to preserve their complex three-dimensional structure in appropriate environments. Another one is that they possess some unknown energy mechanism. The Basic Structures of Matter Supergravitation Unified Theory (BSM-SG) allows uncovering the real physical structures of the elementary particles and their spatial arrangement in atomic nuclei. The resulting physical models (...)
    Download  
     
    Export citation  
     
    Bookmark  
  35. Robust processes and teleological language.Jonathan Birch - 2012 - European Journal for Philosophy of Science 2 (3):299-312.
    I consider some hitherto unexplored examples of teleological language in the sciences. In explicating these examples, I aim to show (a) that such language is not the sole preserve of the biological sciences, and (b) that not all such talk is reducible to the ascription of functions. In chemistry and biochemistry, scientists explaining molecular rearrangements and protein folding talk informally of molecules rearranging “in order to” maximize stability. Evolutionary biologists, meanwhile, often speak of traits evolving “in order to” optimize (...)
    Download  
     
    Export citation  
     
    Bookmark   4 citations  
  36. Defining Generative Artificial Intelligence: An Attempt to Resolve the Confusion about Diffusion.Raphael Ronge, Markus Maier & Benjamin Rathgeber - manuscript
    The concept of Generative Artificial Intelligence (GenAI) is ubiquitous in the public and semi-technical domain, yet rarely defined precisely. We clarify main concepts that are usually discussed in connection to GenAI and argue that one ought to distinguish between the technical and the public discourse. In order to show its complex development and associated conceptual ambiguities, we offer a historical-systematic reconstruction of GenAI and explicitly discuss two exemplary cases: the generative status of the Large Language Model BERT and the differences (...)
    Download  
     
    Export citation  
     
    Bookmark  
  37. How could Vygotsky inform an approach to scientific representations?Dimitris Kilakos - 2016 - Epistemology and Philosophy of Science 47 (1):140-152.
    In the quest for a new social turn in philosophy of science, exploring the prospects of a Vygotskian perspective could be of significant interest, especially due to his emphasis on the role of culture and socialisation in the development of cognitive functions. However, a philosophical reassessment of Vygotsky's ideas in general has yet to be done. As a step towards this direction, I attempt to elaborate an approach on scientific representations by drawing inspirations from Vygotsky. Specifically, I work upon Vygotsky’s (...)
    Download  
     
    Export citation  
     
    Bookmark  
  38. Biometaphysics.Barry Smith - 2009 - In Robin Le Poidevin, Simons Peter, McGonigal Andrew & Ross P. Cameron (eds.), The Routledge Companion to Metaphysics. New York: Routledge. pp. 537-544.
    While Darwin is commonly supposed to have demonstrated the inapplicability of the Aristotelian ontology of species to biological science, recent developments, especially in the wake of the Human Genome Project, have given rise to a new golden age of classification in which ontological ideas -- as for example in the Gene Ontology, the Cell Ontology, the Protein Ontology, and so forth -- are once again playing an important role. In regard to species, on the other hand, matters are more (...)
    Download  
     
    Export citation  
     
    Bookmark   4 citations  
  39. Flora naczyniowa doliny Olszowki [Kotlina Sandomierska] - walory i zagadnienia ochrony.Adam P. Kubiak - 2009 - Chrońmy Przyrodę Ojczystą 4 (65):303-310.
    The study area was a small lowland river valley within a range of 4750 m length and approx. 150 m width (about 62 ha), situated in the south-east of Poland, in the middle of Sandomierz Basin (Fig. 1). Flora and the chosen most valuable plant communities of the river bed with adjacent ecotone zone were investigated in 2007. During the study 291 species of vascular plants were found. Among them 10 are protected: Batrachium peltatum, Convallaria majalis, Dactylorhiza majalis, Daphne mezereum, (...)
    Download  
     
    Export citation  
     
    Bookmark  
  40. Three overlooked key functional classes for building up minimal synthetic cells.Antoine Danchin - 2021 - Synthetic Biology 6 (1):ysab010.
    Assembly of minimal genomes revealed many genes encoding unknown functions. Three overlooked functional categories account for some of them. Cells are prone to make errors and age. As a first key function, discrimination between proper and changed entities is indispensable. Discrimination requires management of information, an authentic, yet abstract, cur- rency of reality. For example proteins age, sometimes very fast. The cell must identify, then get rid of old proteins without destroying young ones. Implementing discrimination in cells leads to the (...)
    Download  
     
    Export citation  
     
    Bookmark   1 citation  
  41. The new (liberal) eugenics.Nicolae Sfetcu - manuscript
    Despite the Nazi horrors, in 1953 the new eugenics was founded, when Watson and Crick postulated the double helix of DNA as the basis of chemical heredity. In 1961, scientists have deciphered the genetic code of DNA, laying the groundwork for code manipulation and the potential building of new life forms. After thirty years from the discovery of the DNA structure, the experimenters began to carry out the first clinical studies of human somatic cell therapy. The practice of prenatal (...)
    Download  
     
    Export citation  
     
    Bookmark  
  42. Is a vegetarian diet morally safe?Christopher A. Bobier - forthcoming - Zeitschrift Für Ethik Und Moralphilosophie.
    If non-human animals have high moral status, then we commit a grave moral error by eating them. Eating animals is thus morally risky, while many agree that it is morally permissible to not eat animals. According to some philosophers, then, non-animal ethicists should err on the side of caution and refrain from eating animals. I argue that this precautionary argument assumes a false dichotomy of dietary options: a diet that includes farm-raised animals or a diet that does not include animals (...)
    Download  
     
    Export citation  
     
    Bookmark  
  43. INFLUENCE OF THE DIET ON THE ONSET OF PUBERTY IN HAIR LAMBS.Carina de Oliveira & Ana Cláudia Nascimento Campos - 2024 - Repositório Ufc 1 (1):1-13.
    Sheep production is the most representative livestock activities in Brazil and in the world. However, the reproductive performance of these animals is determined by factors genetic, physical environment, management and, especially, nutritional. Thirty half-breed lambs from Dorper × Santa Inês were used, with initial weight and age of 31.87 ± 0.5 kg and 157 days, respectively. These animals were prepared on a diet with three food levels (ad libitum, 30% and 70%). Morphometric measurements were measured at intervals of 16 to (...)
    Download  
     
    Export citation  
     
    Bookmark  
  44. On the Possible Transformation and Vanishment of Epistemic Objects.Hans-Jörg Rheinberger - 2016 - Teorie Vědy / Theory of Science 38 (3):269-278.
    When considering the question of possible transformation and disappearance of scientific objects, it is useful to distinguish between epistemic and technical objects. This paper presents preliminary observations and offers a typology of obsolescence. It is based on several case studies drawn from the history of life sciences. The paper proceeds as follows: first, the dynamics of epistemic objects is considered through the examples of Carl Correns’ study of “xenia”, Alfred Kühn’s work on physiological developmental genetics, and Paul Zamecnik’s research on (...)
    Download  
     
    Export citation  
     
    Bookmark   2 citations  
  45. Genotype–phenotype mapping and the end of the ‘genes as blueprint’ metaphor.Massimo Pigliucci - 2010 - Philosophical Transactions Royal Society B 365:557–566.
    In a now classic paper published in 1991, Alberch introduced the concept of genotype–phenotype (G!P) mapping to provide a framework for a more sophisticated discussion of the integration between genetics and developmental biology that was then available. The advent of evo-devo first and of the genomic era later would seem to have superseded talk of transitions in phenotypic space and the like, central to Alberch’s approach. On the contrary, this paper shows that recent empirical and theoretical advances have only sharpened (...)
    Download  
     
    Export citation  
     
    Bookmark   18 citations  
  46. Is the Cell Really a Machine?Daniel J. Nicholson - 2019 - Journal of Theoretical Biology 477:108–126.
    It has become customary to conceptualize the living cell as an intricate piece of machinery, different to a man-made machine only in terms of its superior complexity. This familiar understanding grounds the conviction that a cell's organization can be explained reductionistically, as well as the idea that its molecular pathways can be construed as deterministic circuits. The machine conception of the cell owes a great deal of its success to the methods traditionally used in molecular biology. However, the recent introduction (...)
    Download  
     
    Export citation  
     
    Bookmark   18 citations  
  47. On the Limits of Causal Modeling: Spatially-Structurally Complex Biological Phenomena.Marie I. Kaiser - 2016 - Philosophy of Science 83 (5):921-933.
    This paper examines the adequacy of causal graph theory as a tool for modeling biological phenomena and formalizing biological explanations. I point out that the causal graph approach reaches it limits when it comes to modeling biological phenomena that involve complex spatial and structural relations. Using a case study from molecular biology, DNA-binding and -recognition of proteins, I argue that causal graph models fail to adequately represent and explain causal phenomena in this field. The inadequacy of these models is due (...)
    Download  
     
    Export citation  
     
    Bookmark   7 citations  
  48. Rule Based System for Diagnosing Bean Diseases and Treatment.Mohammed H. S. Abueleiwa, Fadi E. S. Harara, Mustafa M. K. Al-Ghoul, Sami M. Okasha & Samy S. Abu-Naser - 2022 - International Journal of Engineering and Information Systems (IJEAIS) 6 (5):67-74.
    Background: A bean is the seed of one of several genera of the flowering plant family Fabaceae, which are used as vegetables for human or animal food. They can be cooked in many different ways, including boiling, frying, and baking, and are used in many traditional dishes throughout the world. Beans are one of the longest-cultivated plants. Broad beans, also called fava beans, in their wild state the size of a small fingernail, were gathered in Afghanistan and the Himalayan foothills. (...)
    Download  
     
    Export citation  
     
    Bookmark   20 citations  
  49. The Higher Education Adaptability to The Digital Economy.N. Kholiavko, A. Djakona, M. Dubyna, A. Zhavoronok & R. Lavrov - 2020 - Bulletin the National Academy of Sciences of the Republic of Kazakhstan 4 (36):294 – 306.
    Digitalization processes are global and performed in all spheres of economic activities. The development of the digital economy correlates with the dynamics of educational, scientific and technical, and innovative activities in the country. Higher education particularly affects the development of the digital economy because it is a system training highly qualified personnel, conducting quality research, and generating innovations. The purpose of the article is the identification of promising vectors of higher education system development under the conditions of digitalization of national (...)
    Download  
     
    Export citation  
     
    Bookmark  
  50. Ontology as the core discipline of biomedical informatics: Legacies of the past and recommendations for the future direction of research.Barry Smith & Werner Ceusters - 2007 - In Gordana Dodig Crnkovic & Susan Stuart (eds.), Computation, Information, Cognition: The Nexus and the Liminal.f. Cambridge Scholars Press. pp. 104-122.
    The automatic integration of rapidly expanding information resources in the life sciences is one of the most challenging goals facing biomedical research today. Controlled vocabularies, terminologies, and coding systems play an important role in realizing this goal, by making it possible to draw together information from heterogeneous sources – for example pertaining to genes and proteins, drugs and diseases – secure in the knowledge that the same terms will also represent the same entities on all occasions of use. In the (...)
    Download  
     
    Export citation  
     
    Bookmark   6 citations  
1 — 50 / 149