Academic literature on the topic 'Diffusion techniques'

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Journal articles on the topic "Diffusion techniques"

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Bénière, François. "Tracer diffusion techniques." J. Chem. Soc., Faraday Trans. 86, no. 8 (1990): 1151–56. http://dx.doi.org/10.1039/ft9908601151.

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Valliyammai, C., D. Manikandan, R. Hariprasanth, B. Tamilvanan, and C. Aravind. "Emergency Information Diffusion of COVID 19 using Machine Learning Techniques." Indian Journal Of Science And Technology 17, no. 48 (2024): 5091–98. https://doi.org/10.17485/ijst/v17i48.2067.

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Objectives : To find the real time influential user in Twitter to diffuse emergency information globally during COVID 19 using social media. Methods: Twitter API is used to extract the real time COVID related tweets with trending hashtags where 80,000 live tweets are collected to process the data. Machine learning models such as Random Forest, Logistic Regression, Decision Tree, Linear Support Vector Machine, Extreme Gradient Boosting, K-Nearest Neighbor, and Ridge are trained to classify the COVID-related data. K-means clustering groups the communities with respect to zone-wise where the top
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Patel, Mahesh R., Bettina Siewert, Steven Warach, and Robert R. Edelman. "DIFFUSION AND PERFUSION IMAGING TECHNIQUES." Magnetic Resonance Imaging Clinics of North America 3, no. 3 (1995): 425–38. http://dx.doi.org/10.1016/s1064-9689(21)00254-3.

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Mazzia, Annamaria, Giorgio Pini, and Flavio Sartoretto. "Meshless techniques for anisotropic diffusion." Applied Mathematics and Computation 236 (June 2014): 54–66. http://dx.doi.org/10.1016/j.amc.2014.03.032.

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Dung, Nguyen Tien, and Trinh Nhu Quynh. "Tail distribution of the integrated Jacobi diffusion process." Statistics, Optimization & Information Computing 8, no. 3 (2020): 790–800. http://dx.doi.org/10.19139/soic-2310-5070-760.

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In this paper, we study the distribution of the integrated Jacobi diffusion processes with Brownian noise and fractional Brownian noise. Based on techniques of Malliavin calculus, we develop a unified method to obtain explicit estimates for the tail distribution of these integrated diffusions.
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Thomas, Raymond. "Facteur de production et de diffusion des techniques. Sport, technique et média." STAPS 6, no. 12 (1985): 11–15. http://dx.doi.org/10.3406/staps.1985.1441.

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Smilek, Jiří, Michal Kalina, Marcela Laštůvková, Irena Türkeová, Petr Sedlacek, and Martina Klučáková. "Reactivity-Mapping Tool Based on Diffusion Techniques for Characterization of Biocolloids." Materials Science Forum 851 (April 2016): 130–34. http://dx.doi.org/10.4028/www.scientific.net/msf.851.130.

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The universal reactivity-mapping tool was developed for characterization and study on barrier properties of selected biopolymers. The reactivity of biocolloids (humic acids) was studied by both diffusion techniques (break-through diffusion technique and non-stationary diffusion). The rate of reactivity of humic acids was compared by the interactions with basic cationic organic dye (Methylene Blue) because of the positive interactions among anionic supramolecular humic acids and cationic organic dyes were expected. The reactivity and barrier properties of biocolloids were compared by determinat
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Avasthi, D. K., and A. Tripathi. "Ion Beam Techniques for Study of Diffusion." Materials Science Forum 223-224 (July 1996): 433–36. http://dx.doi.org/10.4028/www.scientific.net/msf.223-224.433.

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Cohen, Jack S. "Biomedical Applications of Diffusion-Weighted NMR Techniques." Israel Journal of Chemistry 43, no. 1-2 (2003): 81–90. http://dx.doi.org/10.1560/f773-r2cr-xehh-4931.

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Fernandez-Cornejo, Jorge, and Alan Kackmeister. "The Diffusion of Integrated Pest Management Techniques." Journal of Sustainable Agriculture 7, no. 4 (1996): 71–102. http://dx.doi.org/10.1300/j064v07n04_08.

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Dissertations / Theses on the topic "Diffusion techniques"

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Witwit, Abdul-Mehdi Rahim Mohammed. "Meshing techniques for TLM diffusion problems." Thesis, University of Hull, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.296281.

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Williams, Catherine F. M. "Diffusion-weighted magnetic resonance imaging techniques." Thesis, University of Aberdeen, 1998. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU602003.

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The aim of this project was to compare and evaluate other, non-EPI, diffusion-weighted MRI (DWI) sequences, through imaging experiments, on a phantom and in vivo, (using a 0.95 T system) and computer simulations, and to develop improved DWI methodology which could be implemented on standard hardware. Pulsed gradient spin echo (PGSE) and diffusion-weighted STEAM are slow multiple shot sequences, with measurement times of several minutes. Both sequences are highly sensitive to patient motion, but motion artifact was virtually eliminated using navigator echo phase correction and EGG triggering wh
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Sekerci, Yadigar. "Some recent simulation techniques of diffusion bridge." Thesis, Växjö University, School of Mathematics and Systems Engineering, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:vxu:diva-5749.

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<p>We apply some recent numerical solutions to diffusion bridges written in Iacus (2008). One is an approximate scheme from Bladt and S{\o}rensen (2007), another one, from  Beskos et al (2006), is an algorithm which is exact: no numerical error at given grid points!</p>
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Rogerson, Alexandria. "New techniques in diffusion-ordered NMR spectroscopy." Thesis, University of Manchester, 2013. https://www.research.manchester.ac.uk/portal/en/theses/new-techniques-in-diffusionordered-nmr-spectroscopy(aa3eaee0-984b-4434-b460-8c3118a7c3b2).html.

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The analysis of mixtures is a subject that spans several different analytical techniques. In NMR, a powerful technique for this analysis is Diffusion-Ordered NMR Spectroscopy (DOSY), in which signals from different chemical species can be distinguished by their different diffusion coefficients. DOSY NMR allows an analysis of mixture components and their interactions in a non-invasive way and is proving to be an accurate and time effective method for looking at mixtures.An in-depth analysis of DOSY NMR is presented using the commercial mixture “monoacetin”. The chemically cognate species in thi
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Clement, Meagan E. Couper David J. "Analysis techniques for diffusion tensor imaging data." Chapel Hill, N.C. : University of North Carolina at Chapel Hill, 2008. http://dc.lib.unc.edu/u?/etd,2010.

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Thesis (DrPH)--University of North Carolina at Chapel Hill, 2008.<br>Title from electronic title page (viewed Feb. 17, 2009). "... in partial fulfillment of the requirements for the degree of Doctorate of Public Health in the School of Public Health Department of Biostatistics." Discipline: Biostatistics; Department/School: Public Health.
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Mueller, Katherine Elisabeth. "Diffusion in polymers using quartz crystal microbalance techniques /." Digital version accessible at:, 1998. http://wwwlib.umi.com/cr/utexas/main.

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Ferguson, R. C. "Numerical techniques for the drift-diffusion semiconductor equations." Thesis, University of Bath, 1996. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.362239.

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Bushby, Roger Stanley. "Joining aluminium-based composites using diffusion bonding techniques." Thesis, University of Bath, 1993. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.331934.

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Ismail, Furrukh. "Photovoltaic Process Development and innovative Techniques." Thesis, Högskolan Dalarna, Elektroteknik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:du-6453.

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Photovoltaic processing is one of the processes that have significance in semiconductor process line. It is complicated due to the no. of elements involved that directly or indirectly affect the processing and final yield. So mathematically or empirically we can’t say assertively about the results specially related with diffusion, antireflective coating and impurity poisoning. Here I have experimented and collected data on the mono-crystal silicon wafers with varying properties and outputs. Then by using neural network with available experimental data output required can be estimated which is
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Symeonidis, Kimon. "The Controlled Diffusion Solidification Process: Fundamentals and Principles." Worcester, Mass. : Worcester Polytechnic Institute, 2009. http://www.wpi.edu/Pubs/ETD/Available/etd-042909-102711/.

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Books on the topic "Diffusion techniques"

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Taira, Kazuaki. Functional Analytic Techniques for Diffusion Processes. Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-1099-9.

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Fonck, Philippe. Communication sociale et techniques de diffusion. 2nd ed. De Boeck-Wesmael, 1990.

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Gazagnadou, Didier. La diffusion des techniques et les cultures: Essai. Kimé, 2008.

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Center, NASA Glenn Research, ed. Novel diffusivity measurement technique. National Aeronautics and Space Administration, Glenn Research Center, 2001.

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Weickert, Joachim. Anisotropic diffusion in image processing. B.G. Teubner, 1998.

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Eckman, Richard M. The Suitability of diffusion and wind-field techniques for an emergency-response dispersion model. U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, Environmental Research Laboratories, 1989.

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J, Dobosy Ronald, and Air Resources Laboratory (U.S.), eds. The suitability of diffusion and wind-field techniques for an emergency-response dispersion model. U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, Environmental Research Laboratories, Air Resources Laboratory, 1989.

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Hadassah, Kaplan, and Oholo Conference (35th : 1990 : Elat, Israel), eds. Transport and diffusion in turbulent fields: Modeling and measurement techniques : 35th Oholo Conference Israel Institute for Biological Research. Kluwer Academic Publishers, 1993.

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Fédération des écomusées et des musées de société (France), Observatoire des politiques culturelles (Grenoble, France), and Musée dauphinois, eds. Musées et société, aujourd'hui: Actes du colloque tenu les 24 et 25 mai 2007 à Grenoble au Musée dauphinois. Musée dauphinois, 2008.

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C, Ku Jerry, and United States. National Aeronautics and Space Administration., eds. Soot volume fraction imaging. National Aeronautics and Space Administration, 1994.

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Book chapters on the topic "Diffusion techniques"

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Perrin, Vincent. "Diffusion." In MRI Techniques. John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118761281.ch2.

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Viehland, Larry A. "Experimental Techniques." In Gaseous Ion Mobility, Diffusion, and Reaction. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-04494-7_2.

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Ratneswaren, Tarini, and Tomasz Matys. "Diffusion-Weighted Imaging." In Neuroimaging Techniques in Clinical Practice. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-48419-4_13.

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Kashefi, Samira N., and Gavin P. Winston. "Diffusion Tensor Imaging." In Neuroimaging Techniques in Clinical Practice. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-48419-4_14.

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Zhuo, Jiachen, and Rao P. Gullapalli. "Diffusion Kurtosis Imaging." In Neuroimaging Techniques in Clinical Practice. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-48419-4_15.

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Fletcher, Clive A. J. "Multidimensional Diffusion Equation." In Computational Techniques for Fluid Dynamics 1. Springer Berlin Heidelberg, 1998. http://dx.doi.org/10.1007/978-3-642-58229-5_8.

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Fletcher, Clive A. J. "Multidimensional Diffusion Equation." In Computational Techniques for Fluid Dynamics 1. Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-642-97035-1_8.

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Rothman, Steven J. "Experimental Techniques for the Measurement of Diffusion Coefficients." In Diffusion in Materials. Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-009-1976-1_10.

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De Luca, Alberto, and Alexander Leemans. "Fiber Tractography Techniques." In A Practical Guide to Advanced Diffusion MRI. Springer Nature Switzerland, 2024. https://doi.org/10.1007/978-3-031-70337-9_5.

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Fletcher, Clive A. J. "One-Dimensional Diffusion Equation." In Computational Techniques for Fluid Dynamics 1. Springer Berlin Heidelberg, 1998. http://dx.doi.org/10.1007/978-3-642-58229-5_7.

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Conference papers on the topic "Diffusion techniques"

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Lazzari-Dean, Julia R., Alfred Millett-Sikking, Austin E. Y. T. Lefebvre, Maria Ingaramo, and Andrew G. York. "Revealing Protein Binding in Live Cells via Rotational Diffusion of Fluorescent Protein Triplets." In Novel Techniques in Microscopy. Optica Publishing Group, 2025. https://doi.org/10.1364/ntm.2025.nw1c.3.

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Protein-protein interactions underlie most proteins’ functions, but they are difficult to measure. We developed a new form of optical contrast based on triggerable fluorescence from triplet states, revealing interactions in situ with a single tag.
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Babu R, Dushyanth V., Praveen Kumar Thakur, and Shiv Shankar Shankar. "Novel Signal Processing Techniques for High Angular Resolution Diffusion-Weighted Imaging." In 2024 15th International Conference on Computing Communication and Networking Technologies (ICCCNT). IEEE, 2024. http://dx.doi.org/10.1109/icccnt61001.2024.10724151.

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Ruan, Dan-Ling, and Jian-Wei Liu. "Diffusion Modeling and Transformer Knowledge Distillation Techniques for Time Series Imputation." In 2024 China Automation Congress (CAC). IEEE, 2024. https://doi.org/10.1109/cac63892.2024.10864498.

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Pike, E. R., H. J. Gould, and F. Watanabe. "Fluorescence Photobleaching Recovery Measurements of Facilitated Diffusion." In Photon Correlation Techniques and Applications. Optica Publishing Group, 1988. http://dx.doi.org/10.1364/pcta.1988.pcs159.

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The feasibility of a direct measurement of sliding of proteins along a DNA chain by the fluorescence photobleaching recovery technique is demonstrated. The results obtained with a protein, histone H1, provides a firm basis for the understanding of the "facilitated diffusion" mechanism by which site-specific DNA binding proteins are thought to find efficiently their unique loci.
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Wang, Lihong V. "Photoacoustic Tomography: Ultrasonically Breaking through the Optical Diffusion Limit." In Novel Techniques in Microscopy. OSA, 2013. http://dx.doi.org/10.1364/ntm.2013.nw5b.2.

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Šubrtová, Adéla, Michal Lukáč, Jan Čech, David Futschik, Eli Shechtman, and Daniel Sýkora. "Diffusion Image Analogies." In SIGGRAPH '23: Special Interest Group on Computer Graphics and Interactive Techniques Conference. ACM, 2023. http://dx.doi.org/10.1145/3588432.3591558.

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Hu, Anita, Nishkrit Desai, Hassan Abu Alhaija, Seung Wook Kim, and Maria Shugrina. "Diffusion Texture Painting." In SIGGRAPH '24: Special Interest Group on Computer Graphics and Interactive Techniques Conference. ACM, 2024. http://dx.doi.org/10.1145/3641519.3657458.

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Wabgonker, Harsha M., Mehron Vaezi, and Behnam Bavarian. "Error diffusion techniques for printing fingerprint images." In Enabling Technologies for Law Enforcement and Security, edited by Lisa A. Alyea and David E. Hoglund. SPIE, 1997. http://dx.doi.org/10.1117/12.265389.

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Nadernejad, E., and H. Hassanpour. "Evaluating diffusion-based image de-noising techniques." In 2007 International Conference on Intelligent and Advanced Systems (ICIAS). IEEE, 2007. http://dx.doi.org/10.1109/icias.2007.4658451.

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Lieng, Henrik. "Ray-traced diffusion points." In SIGGRAPH '16: Special Interest Group on Computer Graphics and Interactive Techniques Conference. ACM, 2016. http://dx.doi.org/10.1145/2945078.2945085.

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Reports on the topic "Diffusion techniques"

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Xiao, X. D. Surface diffusion studies by optical diffraction techniques. Office of Scientific and Technical Information (OSTI), 1992. http://dx.doi.org/10.2172/7069459.

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Xiao, Xu Dong. Surface diffusion studies by optical diffraction techniques. Office of Scientific and Technical Information (OSTI), 1992. http://dx.doi.org/10.2172/10131747.

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Cherniak, D. J., W. A. Lanford, and F. J. Ryerson. The use of ion beam techniques to characterize lead diffusion in minerals. Office of Scientific and Technical Information (OSTI), 1990. http://dx.doi.org/10.2172/6063129.

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Kinney, Steven, and Elisha Peterson. Modeling of Diffusion through a Network: A New Approach using Cellular Automata and Network Science Techniques. Defense Technical Information Center, 2010. http://dx.doi.org/10.21236/ada521397.

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GARBA, Abdoulahi, Abdoul Kader Namata ISSA, Ariel Hardy HOUESSOU, et al. Écosystème des données probantes et des politiques de développement : Profil du Niger. Centre Africain pour le Développement Équitable (ACED), 2024. https://doi.org/10.61647/aa88147.

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L'écosystème des données probantes et des politiques de développement autour des thématiques ciblées au Niger comprend plus d’une vingtaine d’acteurs dont les ministères sectoriels et directions techniques, l'Institut National de la Statistique, les centres universitaires et de recherche, les organisations non gouvernementales, les structures de missions spécialisées, et les partenaires techniques et financiers. Les acteurs de cet écosystème jouent chacun un rôle spécifique dans la production, l'intermédiation, et l'utilisation des données probantes. Les ministères et directions techniques, et
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Pham-Thi, Trang, and Pui-hang Wong. Internet Access and Youth’s Mental Health and Well-being: Evidence from Ethiopia. UNU-MERIT, 2025. https://doi.org/10.53330/gyma8538.

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This paper provides one of the first robust evidence on the impact of internet access on adolescents’ well-being and mental health in a low-income country context. We find reduced subjective well-being and increased measures of mental health disorders among young people in Ethiopia during 2020-2021 following internet diffusion. Our heterogeneity analysis reveals that the effects of internet access on mental health are unequal, with stronger negative impacts for adolescents from lower-wealth households. The mechanism analysis suggests that passive internet use, particularly among youth from les
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Glasscott, Matthew, Johanna Jernberg, Erik Alberts, and Lee Moores. Toward the electrochemical detection of 2,4-dinitroanisole (DNAN) and pentaerythritol tetranitrate (PETN). Engineer Research and Development Center (U.S.), 2022. http://dx.doi.org/10.21079/11681/43826.

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Analytical methods to rapidly detect explosive compounds with high precision are paramount for applications ranging from national security to environmental remediation. This report demonstrates two proof-of-concept electroanalytical methods for the quantification of 2,4-dinitroanisol (DNAN) and pentaerythritol tetranitrate (PETN). For the first time, DNAN reduction was analyzed and compared at a bare graphitic carbon electrode, a polyaniline-modified (PANI) electrode, and a molecularly imprinted polymer (MIP) electrode utilizing PANI to explore the effect of surface-area and preconcentration a
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Chatraphorn, Patcha, and Sojiphong Chatraphorn. Simulations of thin film growth on patterned substrates. Chulalongkorn University, 2005. https://doi.org/10.58837/chula.res.2005.34.

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Patterned substrate growth is a technique that layers of thin film are grown on a substrate with a predetermined pattern. A simple model is used to study patterned growth process with two different types of pattern: flat pattern and periodic pattern. The goals are to determine growth conditions that enable the grown film to reproduce the original pattern, and to determine how much of the original patterns survive up to a specific time. The persistence probability is used to determine fractions of survived pattern. We found that in flat patterned growth, a high substrate temperature which resul
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Kossi, Sénamé Dodzi, Kafui Hanou Ameko, Ariel Hardy HOUESSOU, et al. Écosystème des données probantes et des politiques de développement : Profil du Togo. Centre Africain pour le Développement Équitable (ACED), 2024. https://doi.org/10.61647/aa29630.

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Ces dernières années, le Togo a fait des avancées en matière de production et d'utilisation des données probantes. On note la pluralité des acteurs, l’existence d’un cadre politique, stratégique et programmatique, des efforts pour le renforcement de capacités des institutions nationales et pour le développement des compétences des acteurs nationaux. De même, l’accompagnement des partenaires techniques et financiers ainsi qu’une culture progressive de l’utilisation des données probantes a` des fins de développement et de mise en œuvre des politiques ont été observés. Cette dynamique est orienté
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Langlais, Pierre-Carl. Données de recherche ouvertes. Comité pour la science ouverte, 2024. https://doi.org/10.52949/70.

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La non-ouverture des données scientifiques pèse sur les budgets. On estime qu’une part importante des connaissances scientifiques disparaît chaque année. Selon une étude réalisée en 2014, moins de 50 % des jeux de données biologiques datant des années 1990 ont été récupérés, au prix d’un investissement élevé en temps et en efforts. À titre de comparaison, 98 % des jeux de données publiés dans PLOS avec des identifiants uniques (DOI) sont toujours disponibles pour les futures recherches. Les données scientifiques ouvertes sont des ressources fondamentales pour un grand nombre d’activités de rec
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