Relevant bibliographies by topics / PCNs

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'PCNs'

Author: Grafiati
Published: 4 June 2021
Last updated: 25 July 2025

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Journal articles on the topic "PCNs"

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Li, Tianwei, Jicheng Hu, Chenyang Xu, and Jun Jin. "PCBs, PCNs, and PCDD/Fs in Soil around an Industrial Park in Northwest China: Levels, Source Apportionment, and Human Health Risk." International Journal of Environmental Research and Public Health 20, no. 4 (2023): 3478. http://dx.doi.org/10.3390/ijerph20043478.

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The concentrations of polychlorinated biphenyls (PCBs), polychlorinated naphthalenes (PCNs), and polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) were determined in soil samples collected around an industrial park in Northwest China, to investigate the potential impacts of park emissions on the surrounding environment. The total concentration ranges of PCBs, PCNs, and PCDD/Fs in the soil samples were in 13.2–1240, 141–832, and 3.60–156 pg/g, respectively. The spatial distribution and congener patterns of PCBs, PCNs, and PCCD/Fs indicated that there might be multiple contamination
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Stultz, Conner, and Frank L. Dorman. "Characterization of 9 Gas Chromatography Columns by Linear and Lee Retention Indices for Polychlorinated Biphenyls and Polychlorinated Naphthalenes." Separations 7, no. 3 (2020): 38. http://dx.doi.org/10.3390/separations7030038.

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Polychlorinated biphenyls (PCBs) and naphthalenes (PCNs) are ubiquitous environmental contaminants with varying degrees of toxicity. There are hundreds of possible congeners with similar chemical characteristics, which make these compounds difficult to isolate in environmental samples. Historically, PCBs and PCNs were identified by using an Aroclor or Halowax mixture instead of the individual compounds, which was impractical because of limited numbers of individual standards. A retention index database was developed with all 209 PCBs and 36 PCNs to help identify these chemicals in environmenta
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Han, Jiali, Chenyang Xu, Jun Jin, and Jicheng Hu. "PCNs, PCBs, and PCDD/Fs in Soil around a Cement Kiln Co-Processing Municipal Wastes in Northwestern China: Levels, Distribution, and Potential Human Health Risks." International Journal of Environmental Research and Public Health 19, no. 19 (2022): 12860. http://dx.doi.org/10.3390/ijerph191912860.

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To evaluate the impact of the first cement kiln co-processing municipal wastes in northwest China on the surrounding environment, the concentrations of polychlorinated naphthalenes (PCNs), polychlorinated biphenyls (PCBs), and polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) were determined in 17 soil samples collected around the plant. The concentration ranges of PCNs, PCBs, and PCDD/Fs were 132–1288, 10.8–59.5, and 2.50–5.95 pg/g, and the ranges of toxic equivalents (TEQ) were 1.98–20.8, 2.36–48.0, and 73.2–418 fg/g, respectively. The concentrations of PCNs, PCBs, and PCDD/Fs in
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Gregoris, Elena, Elena Argiriadis, Marco Vecchiato, et al. "Gas-particle distribution, sources and health effect of Polycyclic Aromatic Hydrocarbons (PAHs), Polychlorinated Biphenyls (PCBs) and Polychlorinated Naphthalenes (PCNs) in Venice aerosol." Science of the Total Environment 476-477 (April 1, 2014): 393–405. https://doi.org/10.1016/j.scitotenv.2014.01.036.

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Air samples were collected in Venice during summer 2009 and 2012 to measure gas and particulate concentrations of polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs) and polychlorinated naphthalenes (PCNs). PCB-11, considered a marker for non-Aroclor contamination of the environment, was found for the first time in the Venetian lagoon and in Europe. An investigation on sources has been conducted, evidencing traffic as the major source of PAHs, whereas PCBs have a similar composition to Aroclor 1248 and 1254; in 2009 a release of PCN-42 has been hypothesized. Toxicological
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Wang, Chen, Kun Yan, Jun Wang, Siyu Chen, Jiaming Cui, and Rui Zhang. "Electrospun polyacrylonitrile/polyvinyl pyrrolidone composite nanofibrous membranes with high-efficiency PM2.5 filter." Journal of Polymer Engineering 40, no. 6 (2020): 487–93. http://dx.doi.org/10.1515/polyeng-2019-0318.

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AbstractIn this research, we successfully fabricated a novel closed pore polyacrylonitrile (PAN)/polyvinyl pyrrolidone (PVP) composite nanofibrous membrane (PCNM) on the substrate of a commercial polypropylene window mesh. First, smooth and uniform PAN/PVP composite nanofibers (PCNs) were manufactured by blending PAN and PVP with a mass ratio of 5:5 during electrospinning. Subsequently, the prepared PCNs were hot pressed in a vacuum drying oven at a given temperature of 90°C. The morphology and filter efficiency of PCN and PCNM were investigated. It was found that hot-pressing treatment signif
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Morciano, Marcello, Katherine Checkland, Jonathan Hammond, Yiu-Shing Lau, and Matt Sutton. "Variability in size and characteristics of primary care networks in England: observational study." British Journal of General Practice 70, no. 701 (2020): e899-e905. http://dx.doi.org/10.3399/bjgp20x713441.

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BackgroundGeneral practices in England have been encouraged by national policy to work together on a larger scale by creating primary care networks (PCNs). Policy guidance recommended that they should serve populations of 30 000–50 000 people to perform effectively.AimTo describe variation in the size and characteristics of PCNs and their populations.Design and settingCross-sectional analysis in England.MethodUsing published information from January 2020, PCNs were identified that contained <30 000, between 30 000–50 000, and >50 000 people. Percentiles were calculated to describe variat
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Nevondo, Vhodaho, and Okechukwu Jonathan Okonkwo. "A review on levels of polychlorinated naphthalenes in matrices with emphasis on knowledge and research gaps priorities in Africa." Journal of Environmental Exposure Assessment 1, no. 2 (2022): 10. http://dx.doi.org/10.20517/jeea.2022.02.

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Polychlorinated naphthalenes (PCNs) were listed as Persistent organic pollutants in the Stockholm Convention, in May 2015, because of their adverse health and environmental effects. PCNs production began in the early 1900s when they were used extensively in several consumer goods as fire retardants. However, because of their health and environmental implications, the production and use of PCNs chemicals were voluntarily banned in many countries in the 1970s and 1980s. However, PCNs are still detected in different environmental samples including air, water, sediments, soil, indoor dust, biota,
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Noma, Yukio, Takashi Yamamoto, Robert Giraud, and Shin-ichi Sakai. "Behavior of PCNs, PCDDs, PCDFs, and dioxin-like PCBs in the thermal destruction of wastes containing PCNs." Chemosphere 62, no. 7 (2006): 1183–95. http://dx.doi.org/10.1016/j.chemosphere.2005.07.039.

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Laha, Poulami, Guru S. Gowda, V. Senthil Kumar Reddi, Harish T, and Sydney Moirangthem. "Two Years Beyond COVID-19: Unveiling the Persistence of Neuropsychiatric Symptoms and Risk Factors in a Cross-Sectional Study." BJPsych Open 10, S1 (2024): S54. http://dx.doi.org/10.1192/bjo.2024.189.

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AimsThe neuropsychiatric morbidities associated with post-COVID status are important public health issues. The range and severity of morbidity varies with the type of clinical setting and time of assessment. There are limited studies on the long-term persistence of the post-COVID neuropsychiatric symptoms (PCNS). Hence, this study aims to determine the proportion of persistent PCNS after approximately 2 years of COVID and to find any risk factors for persistent PCNS.MethodsThis study was a cross-sectional study of randomly selected 2,281 individuals aged 18–60 years, currently living in the co
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Liu, Zhitong, Ke Xiao, Jingjing Wu, Tianqi Jia, Rongrong Lei, and Wenbin Liu. "Distributions of Polychlorinated Naphthalenes in Sediments of the Yangtze River, China." Molecules 26, no. 17 (2021): 5298. http://dx.doi.org/10.3390/molecules26175298.

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The pollution status of polychlorinated naphthalenes (PCNs) in the sediment of the Yangtze River Basin, Asia’s largest river basin, was estimated. The total concentrations of PCNs (mono- to octa-CNs) ranged from 0.103 to 1.631 ng/g. Mono-, di-, and tri-PCNs—consisting of CN-1, CN-5/7, and CN-24/14, respectively, as the main congeners—were the dominant homolog groups. Combustion indicators and principal component analysis showed that the emissions from halowax mixtures were the main contributor to PCNs in sediment, among most of the sampling sites. The mean total toxic equivalent (TEQ) was calc
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Dissertations / Theses on the topic "PCNs"

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Correia, Adriana Paes de Jesus. "Letramento, alfabetização e trabalho do professor representados nos PCNs." Pontifícia Universidade Católica de São Paulo, 2007. https://tede2.pucsp.br/handle/handle/13874.

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Made available in DSpace on 2016-04-28T18:23:27Z (GMT). No. of bitstreams: 1 Adriana P J Correia.pdf: 1175397 bytes, checksum: 653674016df6cdfe2f6c4c2f7239bb98 (MD5) Previous issue date: 2007-05-03<br>This research aims at checking the way literacy is approached on the National Curricular Parameters PCNs (Brazil, MEC/SEF, 2000) and the representations about the work of the teacher in relation to literacy built on this document. This document was chosen as analysis object because we think the work of the teacher is conducted and influenced by prefigurative texts, in which high-ranking st
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Antonio, Clésio Acilino. "Ordenamentos político-pedagógicos, parâmetros curriculares nacionais (PCNS) e educação física escolar." Florianópolis, SC, 2000. http://repositorio.ufsc.br/xmlui/handle/123456789/78429.

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Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências da Educação.<br>Made available in DSpace on 2012-10-17T14:16:32Z (GMT). No. of bitstreams: 0Bitstream added on 2014-09-25T17:54:08Z : No. of bitstreams: 1 170305.pdf: 12438425 bytes, checksum: d36ef554cf4303418a059df549d02544 (MD5)<br>O trabalho debate a política de reforma educacional e, em particular, o currículo como um de seus elementos. A análise das justificativas oficiais do Estado brasileiro na promulgação dos novos conhecimentos ou valores na socialização dos cidadãos. O currículo, compreendido também
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Khan, Khudeja. "DATA COMMUNICATION WITH A NANO-SATELLITE USING SATELLITE PERSONAL COMMUNICATION NETWORKS (S-PCNS)." Master's thesis, University of Central Florida, 2008. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/2780.

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Satellites typically communicate with locations on the ground to receive commands and send data back. Establishing reliable communications generally requires dedicated ground stations, which in turn require hardware and expertise. Developers of nano-satellites, however, may not have the expertise or resources necessary for establishing a dedicated ground station. Therefore, the use of an existing communication system, such as the Satellite Personal Communication Networks (S-PCNs), is attractive. Another shortcoming of the fixed ground stations, already available, is that they are normally only
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Guimarães, Nilma. "A abordagem dos gêneros argumentativos nos livros didáticos de língua materna: diretrizes e perspectivas." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/48/48134/tde-25062007-113721/.

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Este trabalho de pesquisa pretendeu investigar supostas mudanças ocorridas nos livros didáticos de Língua Portuguesa, a partir da publicação dos PCNs e da implementação do Programa Nacional do Livro Didático (PNLD) em meados da década de 1990. Estabeleceram-se como objetivos gerais verificar de modo os gêneros textuais vêm sendo abordados nesses manuais, sobretudo nas atividades de produção textual; e contribuir, dessa maneira, com a melhoria da qualidade dos LDs distribuídos aos alunos da rede pública de ensino. Como objetivos específicos, procurou-se verificar qua
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Delfino, Antonia Ieda [UNESP]. "O espaço-representação, investigação e contextualização: uma análise dos PCNs de geografia do ensino médio." Universidade Estadual Paulista (UNESP), 2007. http://hdl.handle.net/11449/96770.

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Made available in DSpace on 2014-06-11T19:28:27Z (GMT). No. of bitstreams: 0 Previous issue date: 2007-10-29Bitstream added on 2014-06-13T18:34:38Z : No. of bitstreams: 1 delfino_ai_me_prud.pdf: 1204915 bytes, checksum: 380ad204edfabf9952ff6f60affe7cdf (MD5)<br>Esse trabalho é resultado da análise teórico-metodológica dos Parâmetros Curriculares Nacionais do Ensino Médio (PCNEMs) de Geografia. Foi desenvolvido a partir da abordagem do conceito de espaço, considerado o conceito central pelo documento e outros conceitoschave como paisagem, lugar, território e territorialidade, escala, globaliz
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Leyva, Carhuatanta Gladys Norma. "Os PCNs e suas tendencias no ensino fundamental em escolas da Rede Publica de Campinas." [s.n.], 2002. http://repositorio.unicamp.br/jspui/handle/REPOSIP/251024.

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Orientador: Nilson Joseph Demange<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Educação<br>Made available in DSpace on 2018-08-02T03:51:26Z (GMT). No. of bitstreams: 1 LeyvaCarhuatanta_GladysNorma_M.pdf: 623880 bytes, checksum: a836b30d762e1030fb5a3246df3380dd (MD5) Previous issue date: 2002<br>Mestrado
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Ladeia, Rita. "Antologias de contos na complementação de livros didaticos de ingles : os PCNs em enfoque discursivo." [s.n.], 2007. http://repositorio.unicamp.br/jspui/handle/REPOSIP/269662.

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Orientador: Silvana Mabel Serrani<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Estudos da Linguagem<br>Made available in DSpace on 2018-08-11T15:37:25Z (GMT). No. of bitstreams: 1 Ladeia_Rita_M.pdf: 6568341 bytes, checksum: 9311b87c4602d9cb1f78da3026ad7f0c (MD5) Previous issue date: 2007<br>Resumo: Este trabalho tem por objetivo estudar critérios de complementação de livros didáticos para o ensino de inglês como língua estrangeira na grade curricular de Ensino Médio. A proposta de complementação baseia-se em princípios multidimensional-discursivos e utiliza ant
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Delfino, Antonia Ieda. "O espaço-representação, investigação e contextualização : uma análise dos PCNs de geografia do ensino médio /." Presidente Prudente : [s.n.], 2007. http://hdl.handle.net/11449/96770.

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Orientador: Fátima Aparecida Gomes Marin<br>Banca: Gilza Maria Zauhy Garms<br>Banca: Marcia Ajala Almeida<br>Resumo: Esse trabalho é resultado da análise teórico-metodológica dos Parâmetros Curriculares Nacionais do Ensino Médio (PCNEMs) de Geografia. Foi desenvolvido a partir da abordagem do conceito de espaço, considerado o conceito central pelo documento e outros conceitoschave como paisagem, lugar, território e territorialidade, escala, globalização, técnicas e redes. Para melhor contextualizar esses conceitos no Ensino Médio, foi traçado um perfil desse nível de ensino no Brasil bem como
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Stürmer, Rosangela. "Religiosidade popular : uma análise dos PCNs do Ensino Religioso em confronto com a práxis pedagógica." Faculdades EST, 2008. http://tede.est.edu.br/tede/tde_busca/arquivo.php?codArquivo=77.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>Estudo que objetiva analisar a relação entre religiosidade popular e os Parâmetros Curriculares Nacionais do Ensino Religioso em confronto com a práxis pedagógica. A primeira parte aborda o surgimento da religiosidade popular procurando conceituá-la. Para isso foram realizadas no Grupo de pesquisa: Religiosidade Popular do Instituto de Teologia e Pastoral ITEPA observações de manifestações de religiosidade popular em diferentes locais e dessas observações foram realizados os diários de bordo. A pergunta sobre o que faz o ser human
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Nascimento, Iscarlety Matias do. "Abordagem da gramática nos livros didáticos de língua portuguesa: os parâmetros curriculares nacionais promoveram mudanças?" Universidade Federal de Goiás, 2018. http://repositorio.bc.ufg.br/tede/handle/tede/9006.

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Submitted by Liliane Ferreira (ljuvencia30@gmail.com) on 2018-10-29T11:44:21Z No. of bitstreams: 2 Dissertação - Iscarlety Matias do Nascimento - 2018.pdf: 3292403 bytes, checksum: 5dc5eeb5348d863314d8d43fe0fe7e02 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2018-10-30T11:12:47Z (GMT) No. of bitstreams: 2 Dissertação - Iscarlety Matias do Nascimento - 2018.pdf: 3292403 bytes, checksum: 5dc5eeb5348d863314d8d43fe0fe7e02 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf84
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Books on the topic "PCNs"

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Wittke, Cleide Inês. Ensino de língua materna: PCNs, gramática e discurso. EDUNISC, 2007.

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Wittke, Cleide Inês. Ensino de língua materna: PCNs, gramática e discurso. EDUNISC, 2007.

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Jacomeli, Mara Regina M. PCNs e temas transversais: Análise histórica das políticas educacionais brasileiras. Alínea Editora, 2007.

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Jacomeli, Mara Regina M. PCNs e temas transversais: Análise histórica das políticas educacionais brasileiras. Alínea Editora, 2007.

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Steve, Prokup, ed. Cellular and PCS/PCN telephones and systems: An overview of technologies, economics, and services. APDG Pub., 1996.

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Kotecha, Harshad. PCs. Barnes & Noble Books, 2005.

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Sharon, Perkins, ed. PCOS for dummies. Wiley Pub., Inc., 2011.

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United States. Agency for Toxic Substances and Disease Registry. Division of Toxicology. Polychlorinated biphenyls (PCBS). Agency for Toxic Substances Disease Registry, Division of Toxicology, Dept. of Health and Human Services, Public Health Service, 2000.

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Leung, Andrew Wing Lok. PCAS communication system. The Author], 1992.

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Murray, Katherine. Discover PCs. IDG Books Worldwide, 1997.

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Book chapters on the topic "PCNs"

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Kumari, Kanchan, Shaheen Akhtar, and Piyush Mohapatra. "Polychlorinated Naphthalenes (PCNs)." In Emerging Contaminants and Associated Treatment Technologies. Springer International Publishing, 2024. http://dx.doi.org/10.1007/978-3-031-50996-4_21.

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Lucia de Amorim Soares, Maria, and Leandro Petarnella. "The Environment as a Cross-Curricular Theme in the Brazilian “Parâmetros Curriculares Nacionais” (PCNs, National Curriculum Parameters)." In Schooling for Sustainable Development in South America. Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-94-007-1754-1_7.

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Bramwell, Donna, Kath Checkland, Jolanta Shields, and Pauline Allen. "2015–Date: Focus on Integration." In Community Nursing Services in England. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-17084-3_8.

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AbstractThis chapter centres on the publishing of the NHS Long Term Plan in 2019 and subsequent revised Health and Social Care Act (2022), both of which focus on integrated, out-of-hospital approaches to health service delivery. The creation of a layered system across geographical levels is advocated, with nested levels of ‘place’ and ‘neighbourhood’ intended to be the building blocks of Integrated Care Systems (ICS), which replaced CCGs in July 2022. We introduce the concept of newly created, ‘neighbourhood level’, Primary Care Networks (PCNs) of general practices and how district nurses fit
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Muro, Yoshinao, and Eng M. Tan. "PCNA." In Manual of Biological Markers of Disease. Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-011-1670-1_23.

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Monzo, Ana M., Nikolaos Prapas, and Artemis Karkanaki. "PCOS." In Ultrasound Imaging in Reproductive Medicine. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-16699-1_6.

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Migliozzi, Matthew T., Mark G. Biebel, and Michael P. Kurtz. "PCNL." In Minimally Invasive and Robotic-Assisted Surgery in Pediatric Urology. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-57219-8_18.

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Braun-Falco, Markus, Henry J. Mankin, Sharon L. Wenger, et al. "PCNV." In Encyclopedia of Molecular Mechanisms of Disease. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-29676-8_5110.

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Braun-Falco, Markus, Henry J. Mankin, Sharon L. Wenger, et al. "PCNSL." In Encyclopedia of Molecular Mechanisms of Disease. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-29676-8_6132.

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Lahme, Sven. "Minimal-Invasive PCNL (Mini-PCNL)." In Percutaneous Nephrolithotomy. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-0575-1_16.

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Veser, Julian, and Christian Seitz. "Tubeless PCNL." In Percutaneous Nephrolithotomy. Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-0575-1_11.

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Conference papers on the topic "PCNs"

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Sharma, Neeraj, and Kalpesh Kapoor. "Attacks in Distributed Routing Protocols in PCNs." In 2024 IEEE International Conference on Blockchain (Blockchain). IEEE, 2024. http://dx.doi.org/10.1109/blockchain62396.2024.00014.

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Sharma, Neeraj, and Kalpesh Kapoor. "Flood and Loot Attack in Distributed Routing Protocols in PCNs." In 2025 17th International Conference on COMmunication Systems and NETworks (COMSNETS). IEEE, 2025. https://doi.org/10.1109/comsnets63942.2025.10885574.

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Xue, Qingshui, Jing Han, and Jiewei Cai. "PEHR: A Proxy Re-encryption Based Medical Data Transmission Scheme in PCNs." In 2024 9th International Conference on Intelligent Informatics and Biomedical Sciences (ICIIBMS). IEEE, 2024. https://doi.org/10.1109/iciibms62405.2024.10792788.

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Wang, Weiquan, Kai Xu, Maoliang Wei, et al. "Monolithic BEOL Integration of Phase Change Materials for Reconfigurable Silicon Photonics." In Optical Fiber Communication Conference. Optica Publishing Group, 2025. https://doi.org/10.1364/ofc.2025.m3g.2.

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We present a monolithic back-end-of-line integration platform for phase change materials (PCMs) in silicon photonics. High-performance nonvolatile integrated photonic devices based on PCMs have been developed, demonstrating their potential applications.
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Ault, J. Peter. "Use of Pre-Construction Primers in Marine Construction." In SSPC 2015 Greencoat. SSPC, 2015. https://doi.org/10.5006/s2015-00002.

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Abstract Pre-construction primers (also known as shop primers or pre-fabrication primers) are very thin films applied to blast cleaned steel plates and shapes to provide preservation of the blasted steel during the shipbuilding or construction process. SSPC is developing an industry guide document containing information regarding the use of pre-construction primers (PCP) on structural steel in shipbuilding. This paper will review the technical details contained in the document including background on the reasons to use and retain PCPs, the types of PCPs and their application and inspection, an
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Rebello, Gabriel Antonio F., Maria Potop-Butucaru, Marcelo Dias de Amorim, and Otto Carlos M. B. Duarte. "Protegendo Redes de Canais de Pagamento Sem Fio com Janelas de Tempo de Bloqueio Mínimas." In Simpósio Brasileiro de Segurança da Informação e de Sistemas Computacionais. Sociedade Brasileira de Computação - SBC, 2021. http://dx.doi.org/10.5753/sbseg.2021.17323.

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Redes de canais de pagamento (Payment Channel Networks - PCN) aumentam o impacto das criptomoedas, fornecendo uma solução rápida e independente de consenso para mitigar os problemas de escalabilidade dos protocolos tradicionais de correntes de blocos (blockchain). No entanto, as PCNs atuais são baseadas em nós robustos com alta disponibilidade e capacidade computacional, dificultando sua adoção em ambientes móveis e sem fio. Este artigo propõe uma arquitetura PCN híbrida que estende as funcionalidades das PCNs tradicionais para cenários de dispositivos sem fio com recursos limitados. O artigo
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Rebello, Gabriel Antonio F., Maria Potop-Butucaru, Marcelo Dias de Amorim, and Otto Carlos M. B. Duarte. "Protegendo Redes de Canais de Pagamento Sem Fio com Janelas de Tempo de Bloqueio Mínimas." In Simpósio Brasileiro de Segurança da Informação e de Sistemas Computacionais. Sociedade Brasileira de Computação - SBC, 2021. http://dx.doi.org/10.5753/sbseg.2021.17323.

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Redes de canais de pagamento (Payment Channel Networks - PCN) aumentam o impacto das criptomoedas, fornecendo uma solução rápida e independente de consenso para mitigar os problemas de escalabilidade dos protocolos tradicionais de correntes de blocos (blockchain). No entanto, as PCNs atuais são baseadas em nós robustos com alta disponibilidade e capacidade computacional, dificultando sua adoção em ambientes móveis e sem fio. Este artigo propõe uma arquitetura PCN híbrida que estende as funcionalidades das PCNs tradicionais para cenários de dispositivos sem fio com recursos limitados. O artigo
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Rebello, Gabriel A. F., Luís Henrique M. K. Costa, Maria Potop-Butucaru, Marcelo Dias de Amorim, and Otto Carlos M. B. Duarte. "Payment Channel Networks with Resource-constrained Devices." In Anais Estendidos do Simpósio Brasileiro de Segurança da Informação e de Sistemas Computacionais. Sociedade Brasileira de Computação - SBC, 2024. http://dx.doi.org/10.5753/sbseg_estendido.2024.242064.

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Payment-channel networks (PCN) represent the leading solution to scale blockchain-based payments to the performance levels of centralized payment systems. However, current PCNs require nodes to stay permanently online and have enough resources to execute payment security mechanisms. Such assumptions are difficult to guarantee in battery-powered devices with intermittent connectivity patterns, such as mobile phones, smart objects, and sensors. In this thesis, we address the case of PCNs with resource-constrained devices on several fronts. First, we formalize a hybrid PCN model that considers li
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Katti, Kalpana S., Dinesh R. Katti, and Avinash H. Ambre. "Unnatural Amino Acids Modified Clays for Design of Scaffolds for Bone Tissue Engineering." In ASME 2010 First Global Congress on NanoEngineering for Medicine and Biology. ASMEDC, 2010. http://dx.doi.org/10.1115/nemb2010-13242.

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Here, we incorporate the results of our new “altered phase theory” (Sikdar et al. 2008a) into design of new polymer clay nanocomposites (PCNs) for bone biomaterials applications. Montmorillonite (MMT) clay was modified using unnatural amino acids as potentially new biocompatible modifiers. The longer carbon chain structures of the unnatural amino acids are expected to enhance non bonded interactions with clay as well as maintaining the usefulness of functional groups of natural amino acids. The specific choice of amino acids is based on both the antibacterial activity reported in literature an
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Aziz, H. M. "Band sharing between CDMA based non-geostationary satellite-PCNs." In Fifth International Conference on Satellite Systems for Mobile Communications and Navigation. IEE, 1996. http://dx.doi.org/10.1049/cp:19960417.

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Reports on the topic "PCNs"

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Mar, Alan. PCSS/VCSEL Update. Office of Scientific and Technical Information (OSTI), 2018. http://dx.doi.org/10.2172/1527305.

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Glintborg, Dorte, Naja Due Kolster, Pernille Ravn, and Marianne Skovsager Andersen. Prospective risk of type 2 diabetes in normal weight women with polycystic ovary syndrome. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, 2022. http://dx.doi.org/10.37766/inplasy2022.6.0070.

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Review question / Objective: To investigate the risk for type 2 diabetes (T2D) in normal weight women with PCOS. The following PECOs (Population, Exposure, Comparator and Outcome) were included: Population: Pre- and postmenopausal women. Exposure: PCOS Comparator: Healthy control or background population. Outcome: T2D. Condition being studied: Polycystic ovary syndrome (PCOS) is a common endocrine disorder of reproductive-aged women with a prevalence of 15–20%. Polycystic ovary syndrome (PCOS) is most often defined according to the Rotterdam criteria, which include irregular ovulation, biochem
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Yang, Liu, FX Liang, Y. Yuan, et al. Efficacy of progestin-primed ovarian stimulation (PPOS) in patients with polycystic ovary syndrome during IVF/ICSI treatments: A systematic review and meta-analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, 2023. http://dx.doi.org/10.37766/inplasy2023.4.0059.

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Review question / Objective: This systematic review aims to evaluate the efficacy of progestin-primed ovarian stimulation (PPOS) on reproductive outcomes in patients with polycystic ovary syndrome (PCOS) undergoing assisted reproductive techniques. Condition being studied: PCOS is a common endocrine disorder that can cause infertility in women of childbearing age. The PPOS protocol, which involves oral progestins with gonadotropin (Gn), has been shown to be effective and safe in treating patients with PCOS. However, the question of whether PPOS provides a significant benefit over conventional
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Yamamoto, Chiaki, Luisa Riveros, Stefania De Santis, Oliver Peña-Habib, and Julie King. OVE’s Review of Project Completion Reports (PCRs) and Expanded Supervision Reports (XSRs): The 2022 Validation Cycle. Inter-American Development Bank, 2023. http://dx.doi.org/10.18235/0004661.

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This report summarizes the results of the Office of Evaluation and Oversight's (OVE's) annual validation of Project Completion Reports (PCRs) and Expanded Supervision Reports (XSRs). PCRs are self-assessments of project performance by the Inter-American Development Bank (IDB); XSRs are their equivalent for IDB Invest. Both PCRs and XSRs are intended to serve as accountability and learning tools.
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Yamamoto, Chiaki, Stephany Maqueda Gassos, Oliver Peña-Habib, and Melanie Putic. OVE's Review of Project Completion Reports (PCRs) and Expanded Supervision Reports (XSRs): The 2021 Validation Cycle. Inter-American Development Bank, 2021. http://dx.doi.org/10.18235/0003943.

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The report summarizes the results of the 2021 validation of Project Completion Reports (PCRs) and Expanded Supervision Reports (XSRs) by the Office of Evaluation and Oversight (OVE). PCRs are self-assessments of project performance by the Inter-American Development Bank (IDB); XSRs are their equivalent for IDB Invest. Both PCRs and XSRs are intended to serve as accountability and learning tools.
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Nallar, Melisa, and Amelia Gelina. Enhancing building thermal comfort : a review of phase change materials in concrete. Engineer Research and Development Center (U.S.), 2023. http://dx.doi.org/10.21079/11681/47679.

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The DoD accounts for over 1% of the country’s total electricity consumption. However, DoD bases heavily rely on vulnerable commercial power grids, susceptible to disruptions from outdated infrastructure, weather-related incidents, and direct attacks. To enhance energy efficiency and resilience, it is imperative to address energy demand in buildings, especially heating and cooling. This study focuses on phase change materials (PCMs) incorporated into concrete to enhance thermal control and reduce energy consumption. Though PCMs have shown promise in heat transfer and energy storage applications
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Rodriguez, Giselle. PCBs in Caulk and Paint. Defense Technical Information Center, 2010. http://dx.doi.org/10.21236/ada566851.

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Montiel Olea, César E., and Leonardo R. Corral. Text Analysis of Project Completion Reports. Inter-American Development Bank, 2021. http://dx.doi.org/10.18235/0003611.

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Project Completion Reports (PCRs) are the main instrument through which different multilateral organizations measure the success of a project once it closes. PCRs are important for development effectiveness as they serve to understand achievements, failures, and challenges within the project cycle they can feed back into the design and execution of new projects. The aim of this paper is to introduce text analysis tools for the exploration of PCR documents. We describe and apply different text analysis tools to explore the content of a sample of PCRs. We seek to illustrate a way in which PCRs c
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Lotufo, Guilherme, Mandy Michalsen, Danny Reible, et al. Interlaboratory study of polyethylene and polydimethylsiloxane polymeric samplers for ex situ measurement of freely dissolved hydrophobic organic compounds in sediment porewater. Engineer Research and Development Center (U.S.), 2024. http://dx.doi.org/10.21079/11681/48512.

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We evaluated the precision and accuracy of multilaboratory measurements for determining freely dissolved concentrations (Cfree) of polycyclic aromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs) in sediment porewater using polydimethylsiloxane and low-density polyethylene polymeric samplers. Four laboratories exposed performance reference compound (PRC) preloaded polymers to actively mixed and static ex situ sediment for approximately one month or more. For Cfree results, intralaboratory precision was high for single compounds; most PAHs and PCBs variability was low. Variability w
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Elbers, I. J. W., Guillaume ten Dam, D. P. K. H. Pereboom, and W. C. M. de Nijs. Proficiency test for dioxins, dioxin-like PCBs and non-dioxin-like PCbs in feed oil. RIKILT Wageningen University & Research, 2018. http://dx.doi.org/10.18174/462577.

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