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Journal articles on the topic 'Biophysical transition'

Author: Grafiati

Published: 31 August 2024

Last updated: 31 July 2025

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1

Van Dyke, Chris. "Boxing daze – using state-and-transition models to explore the evolution of socio-biophysical landscapes." Progress in Physical Geography: Earth and Environment 39, no. 5 (2015): 594–621. http://dx.doi.org/10.1177/0309133315581700.

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Critical physical geography (CPG) proposes to bridge the lingering gap between human and physical geographers. To rejuvenate conversations among different corners of the discipline about the possibility of trans-disciplinary collaboration, CPG must provide unique epistemological, methodological, and conceptual frameworks that human and physical geographers alike will find appealing, relevant, and timely. These should help them perceptively characterize, narrate, and anticipate changes in socio-biophysical landscapes. This paper outlines a conceptual framework that can be harnessed in future CP

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Larson, Ben T., Teresa Ruiz-Herrero, Stacey Lee, Sanjay Kumar, L. Mahadevan, and Nicole King. "Biophysical principles of choanoflagellate self-organization." Proceedings of the National Academy of Sciences 117, no. 3 (2020): 1303–11. http://dx.doi.org/10.1073/pnas.1909447117.

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Inspired by the patterns of multicellularity in choanoflagellates, the closest living relatives of animals, we quantify the biophysical processes underlying the morphogenesis of rosette colonies in the choanoflagellate Salpingoeca rosetta. We find that rosettes reproducibly transition from an early stage of 2-dimensional (2D) growth to a later stage of 3D growth, despite the underlying variability of the cell lineages. Our perturbative experiments demonstrate the fundamental importance of a basally secreted extracellular matrix (ECM) for rosette morphogenesis and show that the interaction of t

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UEMURA, Sotaro. "Importance of Research Field Transition with Biophysical Standpoint." Seibutsu Butsuri 52, no. 2 (2012): 096–97. http://dx.doi.org/10.2142/biophys.52.096.

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Oelschlaeger, Max. "Ecosemiotics and the sustainability transition." Sign Systems Studies 29, no. 1 (2001): 219–36. http://dx.doi.org/10.12697/sss.2001.29.1.14.

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The emerging epistemic community of ecosemioticians and the multidisciplinary field of inquiry known as ecosemiotics offer a radical and relevant approach to so-called global environmental crisis. There are no environmental fixes within the dominant code, since that code overdetermines the future, thereby perpetuating ecologically untenable cultural forms. The possibility of a sustainability transition (the attempt to overcome destitution and avoid ecocatastrophe) becomes real when mediated by and through ecosemiotics. In short, reflexive awareness of humankind's linguisticality is a necessary

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Olson, Donald B. "Biophysical dynamics of western transition zones: a preliminary synthesis." Fisheries Oceanography 10, no. 2 (2001): 133–50. http://dx.doi.org/10.1046/j.1365-2419.2001.00161.x.

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Fernandez, Fernando R., Jordan D. T. Engbers, and Ray W. Turner. "Firing Dynamics of Cerebellar Purkinje Cells." Journal of Neurophysiology 98, no. 1 (2007): 278–94. http://dx.doi.org/10.1152/jn.00306.2007.

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Knowledge of intrinsic neuronal firing dynamics is a critical first step to establishing an accurate biophysical model of any neuron. In this study we examined cerebellar Purkinje cells to determine the bifurcations likely to underlie firing dynamics within a biophysically realistic and experimentally supported model. We show that Purkinje cell dynamics are consistent with a system undergoing a saddle-node bifurcation of fixed points in the transition from rest to firing and a saddle homoclinic bifurcation from firing to rest. Our analyses account for numerous observed Purkinje cell firing pro

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Tesloianu, Nicolae Dan, Lucian Dobreci, Vlad Ghizdovat, et al. "Multifractality through Non-Markovian Stochastic Processes in the Scale Relativity Theory. Acute Arterial Occlusions as Scale Transitions." Entropy 23, no. 4 (2021): 444. http://dx.doi.org/10.3390/e23040444.

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By assimilating biological systems, both structural and functional, into multifractal objects, their behavior can be described in the framework of the scale relativity theory, in any of its forms (standard form in Nottale’s sense and/or the form of the multifractal theory of motion). By operating in the context of the multifractal theory of motion, based on multifractalization through non-Markovian stochastic processes, the main results of Nottale’s theory can be generalized (specific momentum conservation laws, both at differentiable and non-differentiable resolution scales, specific momentum

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Singh, Simron Jit, and Clemens M. Grünbühel. "Environmental relations and biophysical transition: the case of trinket island." Geografiska Annaler: Series B, Human Geography 85, no. 4 (2003): 191–208. http://dx.doi.org/10.1111/j.0435-3684.2003.00142.x.

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Lu, Yi, Amdrea K. Brown, Juewen Liu, Jing Li, and Peter J. Bruesehoff. "Biochemical and biophysical study of transition metal ion-dependent DNAzymes." Journal of Inorganic Biochemistry 96, no. 1 (2003): 182. http://dx.doi.org/10.1016/s0162-0134(03)80695-5.

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Seufferheld, Manfredo J., and Cecil Stushnoff. "SUCROSE AND DEHYDRATION INDUCE GLASS TRANSITIONS DURING CRYOPRESERVATION OF STRAWBERRY PLANTLETS." HortScience 28, no. 5 (1993): 584f—584. http://dx.doi.org/10.21273/hortsci.28.5.584f.

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Differential scanning calorimetry was used to study the effects of sucrose and dehydration on biophysical aspects during cryopreservation of strawberry plantlets, regenerated from leaf disks. Plantlets were encapsulated in alginate beads, soaked 24, 48, 72 and 96 hours in sucrose solutions (0 to 2.0 M) and dehydrated. Imbibition in 1.0 - 2.0 M sucrose and controlled desiccation influenced both ice nucleation and glass transitions during cryopreservation. A surprising discovery was the presence of an exotherm at -100C (sucrose 1.5 and 2.0 M samples imbibed for 48 hours and desiccated 4 hours).

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Lima, Igor, Ambuja Navalkar, Samir K. Maji, Jerson L. Silva, Guilherme A. P. de Oliveira, and Elio A. Cino. "Biophysical characterization of p53 core domain aggregates." Biochemical Journal 477, no. 1 (2020): 111–20. http://dx.doi.org/10.1042/bcj20190778.

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Aggregation is the cause of numerous protein conformation diseases. A common facet of these maladies is the transition of a protein from its functional native state into higher order forms, such as oligomers and amyloid fibrils. p53 is an essential tumor suppressor that is prone to such conformational transitions, resulting in its compromised ability to avert cancer. This work explores the biophysical properties of early-, mid-, and late-stage p53 core domain (p53C) aggregates. Atomistic and coarse-grained molecular dynamics (MD) simulations suggest that early- and mid-stage p53C aggregates ha

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Amschler, Katharina, and Michael P. Schön. "Modulating Tumor Cell Functions by Tunable Nanopatterned Ligand Presentation." Nanomaterials 10, no. 2 (2020): 212. http://dx.doi.org/10.3390/nano10020212.

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Cancer comprises a large group of complex diseases which arise from the misrouted interplay of mutated cells with other cells and the extracellular matrix. The extracellular matrix is a highly dynamic structure providing biochemical and biophysical cues that regulate tumor cell behavior. While the relevance of biochemical signals has been appreciated, the complex input of biophysical properties like the variation of ligand density and distribution is a relatively new field in cancer research. Nanotechnology has become a very promising tool to mimic the physiological dimension of biophysical si

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Pages, Benjamin J., Dale L. Ang, Elisé P. Wright, and Janice R. Aldrich-Wright. "Metal complex interactions with DNA." Dalton Transactions 44, no. 8 (2015): 3505–26. http://dx.doi.org/10.1039/c4dt02700k.

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Increasing numbers of DNA structures are being revealed using a diverse range of transition metal complexes and biophysical spectroscopic techniques. Here we present a review of metal complex-DNA interactions in which several binding modes and DNA structural forms are explored.

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Subbalakshmi, Ayalur Raghu, Bazella Ashraf, and Mohit Kumar Jolly. "Biophysical and biochemical attributes of hybrid epithelial/mesenchymal phenotypes." Physical Biology 19, no. 2 (2022): 025001. http://dx.doi.org/10.1088/1478-3975/ac482c.

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Abstract The epithelial–mesenchymal transition (EMT) is a biological phenomenon associated with explicit phenotypic and molecular changes in cellular traits. Unlike the earlier-held popular belief of it being a binary process, EMT is now thought of as a landscape including diverse hybrid E/M phenotypes manifested by varying degrees of the transition. These hybrid cells can co-express both epithelial and mesenchymal markers and/or functional traits, and can possess the property of collective cell migration, enhanced tumor-initiating ability, and immune/targeted therapy-evasive features, all of

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Szabó, Dorottya, László Benkő, and Dénes Lőrinczy. "Exploring Plasma Proteome Thermal Stability in Peripheral Arterial Disease: Biophysical Findings Under Cilostazol Therapy." Pharmaceuticals 18, no. 6 (2025): 886. https://doi.org/10.3390/ph18060886.

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Introduction: Intermittent claudication, an early symptom of peripheral artery disease, can be treated by cilostazol to alleviate symptoms and improve walking distance. Our previous investigation focused on cilostazol-induced alterations in the thermodynamic properties of plasma, utilizing differential scanning calorimetry (DSC) as a potential monitoring tool. The current proof-of-concept study aimed to enhance the interpretation of DSC data through deconvolution techniques, specifically examining protein transitions within the plasma proteome during cilostazol therapy. Results: Notable differ

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Pichler, Melanie, Manan Bhan, and Simone Gingrich. "The social and ecological costs of reforestation. Territorialization and industrialization of land use accompany forest transitions in Southeast Asia." Land Use Policy Volume 101, February 2021 (2021): 105180. https://doi.org/10.1016/j.landusepol.2020.105180.

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Five Southeast Asian countries (Thailand, Vietnam, Laos, Philippines and Malaysia) have experienced forest transitions, that is, a shift from net deforestation to net increases in forest area, since the 1990s. Climate change mitigation policies such as REDD+ actively promote reforestation, especially in the Global South, where they have been accompanied by exclusionary effects, known as green grabbing. In a regional analysis, we highlight some of the political and biophysical dimensions that come along with forest transitions in the five Southeast Asian countries, interrogating these with resp

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Chen, Jiabin, and Shaobo Wen. "Implications of Energy Intensity Ratio for Carbon Dioxide Emissions in China." Sustainability 12, no. 17 (2020): 6925. http://dx.doi.org/10.3390/su12176925.

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Industrial carbon dioxide (CO2) emissions are mainly derived from fossil energy use, which is composed of procedures involving extraction of energy from the natural system as well as its exchange and consumption in the social system. However, recent research on low-carbon transitions considers the cost of energy commodities from a separate perspective—a biophysical or monetary perspective. We introduce the energy intensity ratio (EIR), which is a novelty perspective combining biophysical and monetary metrics to estimate the cost of energy commodities in the low-carbon energy transitions. This

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Villers, Manon, Daniela C. A. Pigosso, Thomas J. Howard, and Tim C. McAloone. "Towards a unified absolute environmental sustainability decoupling indicator." Proceedings of the Design Society 4 (May 2024): 1507–16. http://dx.doi.org/10.1017/pds.2024.153.

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AbstractManufacturing firms are facing the critical need to manage their business growth while staying within the biophysical limits of the planet. Absolute environmental sustainability decoupling (AESD) combines these goals and is one of the keys for manufacturing firms to achieve their sustainable transition. This study offers an initial contribution to categorise decoupling at the firm level while incorporating absolute environmental sustainability goals. It also explores the role of design in achieving AESD and opens doors for further research on manufacturing firms' sustainability transit

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Ciaccia, Corrado, Elena Testani, Angelo Fiore, et al. "Organic Agroforestry Long-Term Field Experiment Designing Trough Actors’ Knowledge towards Food System Sustainability." Sustainability 13, no. 10 (2021): 5532. http://dx.doi.org/10.3390/su13105532.

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The implementation of agroecology principles within organic farming research is a crux to redesign sustainable agri-food systems. To govern this transition, the local research demand should be addressed by direct engagement of all stakeholders in the research process. The first step is the involvement of farmers and technicians, with the aim of restoring their decision-making role, switching governance to local scale. The co-design/co-management of Long-Term Experiments (LTEs) can be crucial to govern the above-described transition through networking and participatory activities. In this study

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Korkut, Anil, and Wayne A. Hendrickson. "Computation of conformational transitions in proteins by virtual atom molecular mechanics as validated in application to adenylate kinase." Proceedings of the National Academy of Sciences 106, no. 37 (2009): 15673–78. http://dx.doi.org/10.1073/pnas.0907684106.

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Many proteins function through conformational transitions between structurally disparate states, and there is a need to explore transition pathways between experimentally accessible states by computation. The sizes of systems of interest and the scale of conformational changes are often beyond the scope of full atomic models, but appropriate coarse-grained approaches can capture significant features. We have designed a comprehensive knowledge-based potential function based on a Cα representation for proteins that we call the virtual atom molecular mechanics (VAMM) force field. Here, we describ

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Bezerra, Alan Cézar, Jhon Lennon Bezerra da Silva, Douglas Alberto de Oliveira Silva, et al. "Seasonality of Biophysical Parameters in Extreme Years of Precipitation in Pernambuco: Relations, Regionalities, and Variability." Atmosphere 14, no. 12 (2023): 1712. http://dx.doi.org/10.3390/atmos14121712.

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This study analyzed the seasonality of biophysical parameters in the extreme years of precipitation and the relationship with the monthly precipitation of the state of Pernambuco at the regional level (Pernambuco) and homogeneous precipitation zones: zone 1—semiarid, zone 2—transition and zone 3—coastal. For this, the biophysical parameters at the monthly level in the extreme years, 2004 (wet) and 2012 (dry) were related to precipitation data of 45 rainfall stations. Using the Google Earth Engine platform, we calculate the biophysical parameters with MODIS products: Albedo, Normalized Differen

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Ivo, Israel Oliveira, Marcelo Sacardi Biudes, Rayanna de Oliveira Costa, Nadja Gomes Machado, Luiz Octávio Fabrício Do Santos, and Altemar Lopes Pedreira Junior. "VARIAÇÃO TEMPORAL DE PARÂMETROS BIOFÍSICOS DA SUPERFÍCIE POR IMAGENS Landsat 5 EM DIFERENTES COBERTURAS DO SOLO EM UMA ÁREA DE TRANSIÇÃO DE CERRADO E PANTANAL EM MATO GROSSO." Nativa 8, no. 5 (2020): 597–602. http://dx.doi.org/10.31413/nativa.v8i5.10064.

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A substituição da vegetação nativa e a sazonalidade climática modificam os parâmetros biofísicos da superfície. Como 50% do Cerrado tem sido convertido em lavouras e pastagens, o objetivo desse estudo foi avaliar a variação temporal de parâmetros biofísicos em áreas nativas e convertidas em uma área de transição entre Cerrado e Pantanal no Mato Grosso. O estudo foi conduzido na Fazenda Experimental da UFMT (15° 51’ 15.23’’ S e 56° 04’ 13.50’’ W) com imagens do sensor TM-Landsat 5 entre abril e setembro de 2011. O Índice de Vegetação da Diferença Normalizada (NDVI), o albedo da superfície (α) e

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Huang, Tze-Yun, Chung-ke Chang, Ya-Fen Kao, et al. "Parity-dependent hairpin configurations of repetitive DNA sequence promote slippage associated with DNA expansion." Proceedings of the National Academy of Sciences 114, no. 36 (2017): 9535–40. http://dx.doi.org/10.1073/pnas.1708691114.

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Repetitive DNA sequences are ubiquitous in life, and changes in the number of repeats often have various physiological and pathological implications. DNA repeats are capable of interchanging between different noncanonical and canonical conformations in a dynamic fashion, causing configurational slippage that often leads to repeat expansion associated with neurological diseases. In this report, we used single-molecule spectroscopy together with biophysical analyses to demonstrate the parity-dependent hairpin structural polymorphism of TGGAA repeat DNA. We found that the DNA adopted two configur

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Kazlauskaite, Jurate, and Teresa J. T. Pinheiro. "Aggregation and fibrillization of prions in lipid membranes." Biochemical Society Symposia 72 (January 1, 2005): 211–22. http://dx.doi.org/10.1042/bss0720211.

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A key molecular event in prion diseases is the conversion of PrP (prion protein) from its normal cellular form (PrPc) into the disease-specific form (PrPSc). The transition from PrPc to PrPSc involves a major conformational change, resulting in amorphous aggregates and/or fibrillar amyloid deposits. Here, we review several lines of evidence implicating membranes in the conversion of PrP, and summarize recent results from our own work on the role of lipid membranes in conformational transitions of prion proteins. By establishing new correlations between in vivo biological findings with in vitro

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Hausknost, Daniel, Ernst Schriefl, Christian Lauk, and Gerald Kalt. "A Transition to Which Bioeconomy? An Exploration of Diverging Techno-Political Choices." Sustainability 9, no. 4 (2017): 669. https://doi.org/10.3390/su9040669.

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To date the concept of the bioeconomy—an economy based primarily on biogenic instead of fossil resources—has largely been associated with visions of “green growth” and the advancement of biotechnology and has been framed from within an industrial perspective. However, there is no consensus as to what a bioeconomy should effectively look like, and what type of society it would sustain. In this paper, we identify different types of narratives constructed around this concept and carve out the techno-political implications they convey. We map these narra

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Su, Yapeng, Wei Wei, Lidia Robert, et al. "Single-cell analysis resolves the cell state transition and signaling dynamics associated with melanoma drug-induced resistance." Proceedings of the National Academy of Sciences 114, no. 52 (2017): 13679–84. http://dx.doi.org/10.1073/pnas.1712064115.

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Continuous BRAF inhibition of BRAF mutant melanomas triggers a series of cell state changes that lead to therapy resistance and escape from immune control before establishing acquired resistance genetically. We used genome-wide transcriptomics and single-cell phenotyping to explore the response kinetics to BRAF inhibition for a panel of patient-derived BRAFV600-mutant melanoma cell lines. A subset of plastic cell lines, which followed a trajectory covering multiple known cell state transitions, provided models for more detailed biophysical investigations. Markov modeling revealed that the cell

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Arakawa, Christopher, Celina Gunnarsson, Caitlin Howard, et al. "Biophysical and biomolecular interactions of malaria-infected erythrocytes in engineered human capillaries." Science Advances 6, no. 3 (2020): eaay7243. http://dx.doi.org/10.1126/sciadv.aay7243.

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Microcirculatory obstruction is a hallmark of severe malaria, but mechanisms of parasite sequestration are only partially understood. Here, we developed a robust three-dimensional microvessel model that mimics the arteriole-capillary-venule (ACV) transition consisting of a narrow 5- to 10-μm-diameter capillary region flanked by arteriole- or venule-sized vessels. Using this platform, we investigated red blood cell (RBC) transit at the single cell and at physiological hematocrits. We showed normal RBCs deformed via in vivo–like stretching and tumbling with negligible interactions with the vesse

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Plante, Samuel, Kyung-Mee Moon, Pascale Lemieux, Leonard J. Foster, and Christian R. Landry. "Breaking spore dormancy in budding yeast transforms the cytoplasm and the solubility of the proteome." PLOS Biology 21, no. 4 (2023): e3002042. http://dx.doi.org/10.1371/journal.pbio.3002042.

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The biophysical properties of the cytoplasm are major determinants of key cellular processes and adaptation. Many yeasts produce dormant spores that can withstand extreme conditions. We show that spores of Saccharomyces cerevisiae exhibit extraordinary biophysical properties, including a highly viscous and acidic cytosol. These conditions alter the solubility of more than 100 proteins such as metabolic enzymes that become more soluble as spores transit to active cell proliferation upon nutrient repletion. A key regulator of this transition is the heat shock protein, Hsp42, which shows transien

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Jalilov, Muxiddin Xalimovich, Xudoykulova Shoira Narzullayevna, Ergashev Askar Jangoboyevich, Xusniddin Muxiddinovich Jalilov, and Xalikulova Amina Qamariddnovna. "Online Passage Of The Practical Lesson On The Topic" Fluid Flow And Biophysical Properties " In The Module System." American Journal of Medical Sciences and Pharmaceutical Research 03, no. 01 (2021): 97–101. http://dx.doi.org/10.37547/tajmspr/volume03issue01-15.

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This article is devoted to the transition of "Fluid flow and biophysical properties" in a modular system. The importance of viscosity coefficient in medicine, its application in diagnosis and forensic medical examination is described. However, the Stokes method of finding the viscosity coefficient, the availability of viscometric methods, the application of Gess (VK-4) viscometer in medicine to find the viscosity coefficient are described.

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Arp, C. D., M. S. Whitman, B. M. Jones, G. Grosse, B. V. Gaglioti, and K. C. Heim. "Distribution and biophysical processes of beaded streams in Arctic permafrost landscapes." Biogeosciences 12, no. 1 (2015): 29–47. http://dx.doi.org/10.5194/bg-12-29-2015.

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Abstract. Beaded streams are widespread in permafrost regions and are considered a common thermokarst landform. However, little is known about their distribution, how and under what conditions they form, and how their intriguing morphology translates to ecosystem functions and habitat. Here we report on a circum-Arctic survey of beaded streams and a watershed-scale analysis in northern Alaska using remote sensing and field studies. We mapped over 400 channel networks with beaded morphology throughout the continuous permafrost zone of northern Alaska, Canada, and Russia and found the highest ab

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Klitgaard, Kent A. "The Failed Growth Economy, Stagnation, and Biophysical Limits to Growth." International Journal of Social Science Research 1, no. 1 (2013): 140. http://dx.doi.org/10.5296/ijssr.v1i1.4032.

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There are many indications that the era of economic degrowth has already begun, despite conscious policy efforts to maintain it. This indicated by a secular decline in the rate of GDP growth for essentially all OECD countries and many developing ones over the second half of the twentieth century. I believe that this phenomenon has occurred because the mature economies of the world have confronted a set of internal, or social, limits driven by the internal dynamics of capital accumulation and by approaching biophysical limits. These patterns are likely to continue. The purpose of this paper is

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Burland, Anna, and Moritz von Cossel. "Towards Managing Biodiversity of European Marginal Agricultural Land for Biodiversity-Friendly Biomass Production." Agronomy 13, no. 6 (2023): 1651. http://dx.doi.org/10.3390/agronomy13061651.

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The use of marginal land, especially that which has already been used for agricultural purposes in the past two decades, for biomass cultivation is seen as an important approach for the transition to a sustainable bioeconomy. Marginal land can provide many other important ecosystem services than biomass provisioning for bioenergy and biobased products such as erosion mitigation, groundwater protection and nursery services to promote biodiversity. However, marginal land is also often subject to dynamic processes, mostly soil degradation and climate change, which make its fauna and flora particu

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Tsuchiya, Masa, Kenichi Yoshikawa, and Alessandro Giuliani. "Genomic-Thermodynamic Phase Synchronization: Maxwell’s Demon-like Regulation of Cell Fate Transition." International Journal of Molecular Sciences 26, no. 10 (2025): 4911. https://doi.org/10.3390/ijms26104911.

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Dynamic criticality—the balance between order and chaos—is fundamental to genome regulation and cellular transitions. In this study, we investigate the distinct behaviors of gene expression dynamics in MCF-7 breast cancer cells under two stimuli: heregulin (HRG), which promotes cell fate transitions, and epidermal growth factor (EGF), which binds to the same receptor but fails to induce cell-fate changes. We model the system as an open, nonequilibrium thermodynamic system and introduce a convergence-based approach for the robust estimation of information-thermodynamic metrics. Our analysis rev

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Marino, Davide, Antonio Barone, Angelo Marucci, Silvia Pili, and Margherita Palmieri. "Impact of Land Use Changes on Ecosystem Services Supply: A Meta Analysis of the Italian Context." Land 12, no. 12 (2023): 2173. http://dx.doi.org/10.3390/land12122173.

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Changes in land use and land cover (LULC) are caused by several factors, including climate change, socio-demographic dynamics, human pressures and urban sprawl. These factors alter the structure and functionality of ecosystems and their capacity to provide ecosystem goods and services to society. The study of LULC changes is important for understanding the dynamics of relationships between environmental, social and economic components and for analyzing the factors affecting natural capital. Including ecosystem services (ES) in spatial planning tools and sectoral policies is useful for improvin

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Warshel, Arieh, and William W. Parson. "Dynamics of biochemical and biophysical reactions: insight from computer simulations." Quarterly Reviews of Biophysics 34, no. 4 (2001): 563–679. http://dx.doi.org/10.1017/s0033583501003730.

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1. Introduction 5632. Obtaining rate constants from molecular-dynamics simulations 5642.1 General relationships between quantum electronic structures and reaction rates 5642.2 The transition-state theory (TST) 5692.3 The transmission coefficient 5723. Simulating biological electron-transfer reactions 5753.1 Semi-classical surface-hopping and the Marcus equation 5753.2 Treating quantum mechanical nuclear tunneling by the dispersed-polaron/spin-boson method 5803.3 Density-matrix treatments 5833.4 Charge separation in photosynthetic bacterial reaction centers 5844. Light-induced photoisomerizatio

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Cocklin, Chris, and Meg Keen. "Urbanization in the Pacific: environmental change, vulnerability and human security." Environmental Conservation 27, no. 4 (2000): 392–403. http://dx.doi.org/10.1017/s0376892900000448.

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The world is in the midst of a substantial urban transition, but the impacts of this on the environment and human societies are not fully understood. Very little attention has been paid to urbanization processes in developing countries with smaller populations, despite the evident problems associated with urbanization. There are both biophysical and social vulnerabilities associated with urbanization in the South Pacific and these vulnerabilities affect human security. The biophysical vulnerabilities include the fragile environments of the island nations, limited land resources, shortages of b

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Raju, Rekha, Theresa Merl, Madeleine K. Adam, et al. "n-Octyl (Thio)glycosides as Potential Cryoprotectants: Glass Transition Behaviour, Membrane Permeability, and Ice Recrystallization Inhibition Studies." Australian Journal of Chemistry 72, no. 8 (2019): 637. http://dx.doi.org/10.1071/ch19159.

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A series of eight n-octyl (thio)glycosides (1α, β–4α, β) with d-glucose or d-galactose-configured head groups and varying anomeric configuration were synthesized and evaluated for glass transition behaviour, membrane permeability, and ice recrystallization inhibition (IRI) activity. Of these, n-octyl β-d-glucopyranoside (2β) exhibited a high glass transition temperatures (Tg), both as a neat sample and 20 wt-% aqueous solution. Membrane permeability studies of this compound revealed cellular uptake to concentrations relevant to the inhibition of intracellular ice formation, thus presenting a p

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Jalilov, Muhiddin Halimovich, Hudaykulova Shoira Narzullaevna, Hamroev Jobir, and Ahrorov Marufnasimovich. "Passing Lecture On The Topic" Fluid Flow And Biophysical Properties " In The Online System." American Journal of Interdisciplinary Innovations and Research 02, no. 11 (2020): 150–53. http://dx.doi.org/10.37547/tajiir/volume02issue11-25.

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This article is devoted to the transition of"fluid flow and biophysical properties" in the module system. It is stated that it is possible to find the coefficient of viscosity in the Stox method, the coefficient of viscometric methods, to find the coefficient of viscosity in the axiom of Medicine, in diagnosis and in medical and forensic expertise. It is also described to find the coefficient of processes and surface tension on the surface of liquids by drip method.

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Afroz, Tariq, Manuela Pérez-Berlanga, and Magdalini Polymenidou. "Structural Transition, Function and Dysfunction of TDP-43 in Neurodegenerative Diseases." CHIMIA International Journal for Chemistry 73, no. 5 (2019): 380–90. http://dx.doi.org/10.2533/chimia.2019.380.

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Altered cellular localization and pathologic aggregation of RNA binding proteins (RPBs) containing low complexity regions (LCRs) is a hallmark of neurodegenerative diseases such as amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD). Given the importance of RBPs in maintaining a healthy RNA homeostasis, a common mechanism in disease progression is the loss of RNA-related cellular functions. In this review, we summarize and discuss the knowledge gained in the recent years on the molecular mechanisms of TDP-43 proteinopathies that comprise a set of neurodegenerative diseases ch

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Reddy, P. Madhusudhana, R. Umapathi, and P. Venkatesu. "Interactions of ionic liquids with hydration layer of poly(N-isopropylacrylamide): comprehensive analysis of biophysical techniques results." Phys. Chem. Chem. Phys. 16, no. 22 (2014): 10708–18. http://dx.doi.org/10.1039/c4cp00010b.

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Keller, B. U., R. P. Hartshorne, J. A. Talvenheimo, W. A. Catterall, and M. Montal. "Sodium channels in planar lipid bilayers. Channel gating kinetics of purified sodium channels modified by batrachotoxin." Journal of General Physiology 88, no. 1 (1986): 1–23. http://dx.doi.org/10.1085/jgp.88.1.1.

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Single channel currents of sodium channels purified from rat brain and reconstituted into planar lipid bilayers were recorded. The kinetics of channel gating were investigated in the presence of batrachotoxin to eliminate inactivation and an analysis was conducted on membranes with a single active channel at any given time. Channel opening is favored by depolarization and is strongly voltage dependent. Probability density analysis of dwell times in the closed and open states of the channel indicates the occurrence of one open state and several distinct closed states in the voltage (V) range-12

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Altieri, Miguel A., Clara I. Nicholls, Manuel González de Molina, and Angel Salazar Rojas. "Landscape Agroecology: Methodologies and Applications for the Design of Sustainable Agroecosystems." Land 13, no. 11 (2024): 1746. http://dx.doi.org/10.3390/land13111746.

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Agroecosystem function is related to the positioning of the agroecosystem and its connectivity relationship with the surrounding landscape. Herein, three methodologies are presented, which allow assessment of the links between agroecosystems and the surrounding matrix, yielding information for promoting patterns and mechanisms that foster biodiversity and the provision of multiple ecosystem services such as biological pest control, as well as energy flows and material exchanges. The three methodologies are complementary when assessing agrolandscape-level interactions in situations of regional

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Coronel-Oliveros, Carlos, Rodrigo Cofré, and Patricio Orio. "Cholinergic neuromodulation of inhibitory interneurons facilitates functional integration in whole-brain models." PLOS Computational Biology 17, no. 2 (2021): e1008737. http://dx.doi.org/10.1371/journal.pcbi.1008737.

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Segregation and integration are two fundamental principles of brain structural and functional organization. Neuroimaging studies have shown that the brain transits between different functionally segregated and integrated states, and neuromodulatory systems have been proposed as key to facilitate these transitions. Although whole-brain computational models have reproduced this neuromodulatory effect, the role of local inhibitory circuits and their cholinergic modulation has not been studied. In this article, we consider a Jansen & Rit whole-brain model in a network interconnected using a hu

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Day, Thomas C., Pedro Márquez-Zacarías, Pablo Bravo, et al. "Varied solutions to multicellularity: The biophysical and evolutionary consequences of diverse intercellular bonds." Biophysics Reviews 3, no. 2 (2022): 021305. http://dx.doi.org/10.1063/5.0080845.

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The diversity of multicellular organisms is, in large part, due to the fact that multicellularity has independently evolved many times. Nonetheless, multicellular organisms all share a universal biophysical trait: cells are attached to each other. All mechanisms of cellular attachment belong to one of two broad classes; intercellular bonds are either reformable or they are not. Both classes of multicellular assembly are common in nature, having independently evolved dozens of times. In this review, we detail these varied mechanisms as they exist in multicellular organisms. We also discuss the

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Wironen, Michael B., and Jon D. Erickson. "A critically modern ecological economics for the Anthropocene." Anthropocene Review 7, no. 1 (2019): 62–76. http://dx.doi.org/10.1177/2053019619884485.

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Ecological economics recognizes economic activity as a biophysical process mediated by social systems and ultimately subject to the constraints of a finite earth system. The Anthropocene discourse appears as validation of the central concerns of ecological economics yet throws into relief its limits as a normative transdiscipline oriented toward social transformation. We review ecological economics in light of two overarching challenges: first, negotiating between biophysical reality and plural constructed social realities, so as to create legitimate grounds for a sustainability transition; se

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Williams, Joseph, Skylar Sanchez, and Mia Hernandez. "Research on the biophysical properties of circulating tumor cells." Cambridge Science Advance 2024, no. 4 (2024): 13–18. http://dx.doi.org/10.62852/csa/2024/63.

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This article reviews the biophysical properties of circulating tumor cells (CTCs) and their significance in tumor metastasis and liquid biopsy. CTCs are tumor cells that have shed from solid tumors or metastatic foci and entered the bloodstream, possessing various biological markers. They may be cleared by the immune system, enter a dormant state, or form clusters to facilitate metastasis. The physical properties of CTCs, including cell size, density, rigidity, and dielectric properties, differ from normal blood cells, providing a theoretical basis for separation and detection. The biological

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Flomenbom, Ophir. "Single File Dynamics Advances with a Focus on Biophysical Relevance." Biophysical Reviews and Letters 09, no. 04 (2014): 307–31. http://dx.doi.org/10.1142/s1793048014400013.

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In this review (appearing in the Special Issue on single file dynamics in biophysics and related extensions), three recently treated variants in file dynamics are presented: files with density that is not fixed, files with heterogeneous particles, and files with slow particles. The results in these files include:• In files with a density law that is not fixed, but decays as a power law with an exponent a the distance from the origin, the particle in the origin mean square displacement (MSD) scales like MSD ~ t[1+a]/2, with a Gaussian probability density function (PDF). This extends the scaling

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Noll, Dominik, Christian Lauk, Willi Haas, Simron Jit Singh, Panos Petridis, and Dominik Wiedenhofer. "The sociometabolic transition of a small Greek island: Assessing stock dynamics, resource flows, and material circularity from 1929 to 2019." Journal of Industrial Ecology 26, no. 2 (2022): 577–91. https://doi.org/10.1111/jiec.13206.

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Their geomorphological characteristics make island systems special focal points for sustainability challenges. The Circular Economy (CE) Action Plan of the European Union foresees tailored solution sets for Europe’s outermost regions and islands to tackle region-specific sustainability challenges. We address the question of how islands can achieve more sustainable resource use by utilizing the socioeconomic metabolism (SEM) framework to assess and explore CE strategies for the Greek island of Samothraki. For this purpose, we apply material and energy flow analysis on a regional level and

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Carvalho, Diogo Duarte, Susana Soares, Rodrigo Zacca, et al. "Anaerobic Threshold Biophysical Characterisation of the Four Swimming Techniques." International Journal of Sports Medicine 41, no. 05 (2020): 318–27. http://dx.doi.org/10.1055/a-0975-9532.

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AbstractThe anaerobic threshold (AnT) seems to be not only a physiologic boundary but also a transition after which swimmers technique changes, modifying their biomechanical behaviour. We expanded the AnT concept to a biophysical construct in the four conventional swimming techniques. Seventy-two elite swimmers performed a 5×200 m incremental protocol in their preferred swimming technique (with a 0.05 m·s−1 increase and a 30 s interval between steps). A capillary blood samples were collected from the fingertip and stroke rate (SR) and length (SL) determined for the assessment of [La], SR and S

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Duveiller, Gregory, Giovanni Forzieri, Eddy Robertson, et al. "Biophysics and vegetation cover change: a process-based evaluation framework for confronting land surface models with satellite observations." Earth System Science Data 10, no. 3 (2018): 1265–79. http://dx.doi.org/10.5194/essd-10-1265-2018.

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Abstract. Land use and land cover change (LULCC) alter the biophysical properties of the Earth's surface. The associated changes in vegetation cover can perturb the local surface energy balance, which in turn can affect the local climate. The sign and magnitude of this change in climate depends on the specific vegetation transition, its timing and its location, as well as on the background climate. Land surface models (LSMs) can be used to simulate such land–climate interactions and study their impact in past and future climates, but their capacity to model biophysical effects accurately acros

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