60 research outputs found
Changes of physical properties of glass surfaces exposed to KNO3 vapors
No full textModifications of glass surfaces were studied after exposure of samples to an atmosphere resulting from the decomposition of molten KNO3. The diffusion coefficient of K+ ions migrating into the surfaces of float glass and synthesized glasses doped with up to 5 wt% SnO2 was calculated by the Boltzmann-Matano technique. The Vickers hardness and the refractive index increase with exposure time. Infrared spectra show that the migration of K+ is responsible for an increase in the number of non-bridging oxygens in the exposed samples. The spectra of the synthesized glasses present evidences that their surfaces undergo crystallization during the exposure. All results lead to the conclusion that the presence of tin in the glasses hinders the diffusion of K+ ions, thus affecting the Vickers hardness, the refractive index and the infrared spectra. It is shown that the exposure method can be used as an alternative process to promote the K+ migration into glass surfaces. (c) 2006 Elsevier B.V. All rights reserved.UNESP, Dept Fis, Inst Geociencias & Ciências Exatas, BR-13500970 Rio Claro, SP, BrazilUNESP, Dept Fis, Inst Geociencias & Ciências Exatas, BR-13500970 Rio Claro, SP, Brazi
Magnetic spheres in microwave cavities
No full textWe apply Mie scattering theory to study the interaction of magnetic spheres with microwaves in cavities beyond the magnetostatic and rotating wave approximations. We demonstrate that both strong and ultrastrong coupling can be realized for stand alone magnetic spheres made from yttrium iron garnet (YIG), acting as an efficient microwave antenna. The eigenmodes of YIG spheres with radii of the order mm display distinct higher angular momentum character that has been observed in experiments.QN/Quantum NanoscienceApplied Science
Author Correction: Lung regeneration by multipotent stem cells residing at the bronchioalveolar-duct junction (Nature Genetics, (2019), 51, 4, (728-738), 10.1038/s41588-019-0346-6)
No full textIn the version of this article initially published, the following grant numbers and recipients were missing from the Acknowledgements: XDB19000000 to H.J. and B.Z.; 81430066 and 31621003 to H.J.; 2017YFA0505500 to H.J.; and 15XD1504000 to H.J. The errors have been corrected in the HTML and PDF versions of the article.</p
Incubator
No full textThis short article starts from tracing the origin of the term incubator and explains why the term now is closely associated with the support of early stage ventures. It provides a definition for business incubator and also point out differences between incubators and science/technology parks by highlighting its exclusive focus on early stage ventures. It outlines the four key components which an incubator normally possess and also summarize the various goals of establishing an incubator from public and private sector perspective. It concludes that the past researches show business incubators are instrumental and effective in enhancing the survival rate of start-ups
Eigenvectors of isospectral graph transformations
No full textL.A. Bunimovich and B.Z. Webb developed a theory for isospectral graph reduction. We make a simple observation regarding the relation between eigenvectors of the original graph and its reduction, that sheds new light on this theory. As an application we propose an updating algorithm for the maximal eigenvector of the Markov matrix associated to a large sparse dynamical network.The first author was partially supported by Fundacao para a Ciencia e a Tecnologia, PEst, OE/MAT/UI0209/2011.The second author was partially supported by the Research Centre of Mathematics of the University of Minho with the Portuguese Funds from the "Fundacao para a Ciencia e a Tecnologia", through the Project PEstOE/MAT/UI0013/2014
Morphometrical analysis of intertissue correlations “epithelium-mesenchyma” of the human oral cavity at an early stage of prenatal ontogenesis
No full textБуковинский государственный медицинский университет, Черновцы, Украина, Conferinţa Știinţifică Internaţională ”Probleme actuale ale morfologiei” dedicată сentenarului profesorului B.Z. Perlin, Chişinău, 20-22 septembrie 2012The author has carried out a karyometric analysis of intertissue correlations between “epithelium-mesenchyma” of the
human oral cavity on 45 series of histological sections of human embryos and prefetuses, measuring 2.5-70.0 mm of the
parieto-coccygeal length (PCL, рос. – ТКД), aged 3-12 weeks of intrauterine development (levels X-XII of development
according to Stritter and stages 9-23 of Carnegie’s Institute). It has been established that prior to the appearance of morphological differences between various versions of the epithelia and mesenchymal derivatives of the oral cavity, the cell nuclei
significantly differ by their dimensions. The most differentiated tissues of the human oral cavity have cells with nuclei of
smaller sizes
<b>10m winter wheat harvested area and planted area distribution map of China for five years (2018-2022)</b>
No full text------ 1. Introductory information ------Title: Mapping 10-m harvested area in the major winter wheat-producing regions of China from 2018 to 2022Format: TIFNaming convention: " ChinaWheatMap10_P_2018.tif" means winter wheat planted area map of 2018, and “ChinaWheatMap10_H_2018.tif" means winter wheat harvested area map of 2018.Authors: Jinkang Hu, Bing Zhang, Dailiang Peng, Jianxi Huang, Wenjuan Zhang, Bin Zhao, Enhui Cheng, Zihang Lou, Shengwei Liu, Songlin Yang, Yunlong Tan, and Yulong LvKey Laboratory of Digital Earth Science, Aerospace Information Research Institute, Chinese Academy of SciencesCorresponding author: Bing ZhangContact Information: [email protected] (JK.H.); [email protected] (B.Z.)------ 2. Data specific information ------The dataset contains winter wheat maps of harvested area and planted area with 10m spatial resolution for five years (2018-2022) over eight provinces. In the datasets, the values equal to one means winter wheat.Software: ArcGIS, QGIS or ENVI are needed to read the dataset.</p
Diarrea infantil complicada y redes de apoyo. Dimensión Antropológica Vol. 5 Año 2 (1995) septiembre-diciembre
No full textAltan, C.T., Uomo e societá. Manuale di antropología culturale, storia e metodo, 1973.Álvarez, Selene, "Sobrevivencia infantil. La terapia de hidratación oral en México”, tesis doctoral en sociología, México, UNAM, 1989.Berman, P., “The household production of health: Integrating social science perspectives on micro-level health determinants", en Soc. Sel. Med., 38,1994.Condom, P.D., J. Cravioto, F.E. Johnston, E.R. de Licardif, T.O. Scholi, “Morbidity and growth of infants and young children in a rural mexican village”, en Am. 1. Public Health, 67,1977.Guiscafre, G.H. y T.G. Gutiérrez, Hidratación oral en un sistema de hospitales rurales en México, México, Med. Hosp. Infant. Méx., 1985.Heller, Agnes, Sociología de la vida cotidiana, Barcelona, Península, 1977.Kassem, A.S.,I. El Araby y B.Z. Massoud, “Effect of antibiotics on duration of diarrhoea and speed of rehydration", en Gazzette Egypt Paediatr Assoc, 31, 1983.Koss, J.D., La etnomedicina en la salud mental en la comunidad, temas de salud mental en la comunidad (Serie Paltex para ejecutores de programas en salud, núm. 19), Ed. I. Levav OPS, 1992.Mota, H.F., “Abuso de antimicrobianos y otros conceptos erróneos en el tratamiento de diarreas en niños", en Bol. Med. Hosp. Infant. Méx., 44, 1987.Organización Mundial de la Salud, "El uso racional de medicamentos contra la diarrea en la infancia", en Foro Mundial de la Salud, vol. 12, núm. 3, s.f., pp. 382-383.Secretaría de Salud, "Salud Infantil y Preescolar. Evaluación. Cumbre Mundial en Favor de la Infancia", México, Secretaría de Salud, 1992.Secretaría de Salud (Unidad de Planeación), "Registros estadísticos", Veracruz, Secretaría de Salud, 1993a.Secretaría de Salud (Dirección General de Epidemiología), “Sistema de vigilancia epidemiológica", México, Secretaría de Salud, 1993b.Secretaría de Salud, “Programa estatal de control de enfermedades diarreicas", Veracruz, Secretaría de Salud, 1994.Thernlund, Gunilla y Margareta Samuelsson, “Parental social support and child behaviour problems in different populations and socioeconomic groups: A methodological study", en Social Science and Medicine 36(3),1993, pp. 353-360.Williams, Holly Anne, "A comparison of social support and social networks of black parents and white parents with chronically ill children", en Social Science and Medicine 37(12), 1993, pp. 1509-1520.World Health Organization, Programme for Control of Diarrhoeal Diseases, Interím Programme Report, Suiza, 1992.Las enfermedades diarreicas son uno de los retos más importantes que la sociedad y la medicina enfrentan en el intento de abatir la enfermedad y la muerte anual de tres millones de niños menores de cinco años. Los países en vías de desarrollo aportan el mayor número de defunciones causadas por deshidratación. Esta muerte es inexplicable desde una perspectiva técnica, ya que es prevenible en el 95% de los casos, si se rehidrata al niño con suero oral
World trade organization and the renewable energy sources cases: How to achieve the SDG7?
No full textThis article discusses in detail disputes resolved by the WTO Dispute Settlement Body (hereinafter referred to as the WTO DSB) in the field of state subsidies to support the use of renewable energy sources (hereinafter referred to as the RES). Since 2010, eight cases have been filed with the WTO DSB in relation to RES subsidy programs. The author analyzes the case and shows the impact of increasing the number of such trade disputes on further development of renewable energy in the whole world, and in separate states. The author pays special attention to the achievement of Sustainable Development Goal 7, which were approved by the UN for 2016-2030, in the context of the spread of RES in the context of the conditions of WTO DSB case practice. © 2020, by ASERS® Publishing. All rights reserved
Conservation of the Cylindrical and Elliptic Cylindrical K-P Equations
No full textcylindrical and elliptic cylindrical Kadomtsev-Petviashvili equationLie symmetriesreductionconservation lawsThis is a pre-copy-editing, author-produced PDF of an article accepted for publication in Applied Mathematics & Information Sciences following peer review. The definitive publisher-authenticated version: Hong, J. B.Z., Fakhar, K., Ahmad, S. and A.H. Kara (2015). Conservation of the cylindrical and elliptic cylindrical K-P equations. Applied Mathematics & Information Sciences, 9 (2), 631-635, is available online at: http://www.naturalspublishing.com/files/published/4353t3r7z8gclr.pdfPeer reviewedPostprint use of NSP Journals content When uploading an accepted manuscript to a repository, authors should include a credit line (see below) and a link to the final published version of the article. This will guarantee that the definitive version is readily available to those accessing your article from public repositories, and means that your article is more likely to be cited correctly. A PDF of the final published version of the article as it appears in the journal following copyediting and proof correction may not be deposited by authors in institutional repositories. Authors should include the following credit line when depositing their accepted manuscripts. This is a pre-copy-editing, author-produced PDF of an article accepted for publication in [insert journal title] following peer review. The definitive publisher-authenticated version [insert complete citation information here] is available online at: xxxxxxx [insert URL that the author will receive upon publication here]
- …
