Journal articles on the topic 'Prove PISA'
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D'Auria, F., S. Soloviev, D. Mazzini, and C. Sollima. "Deterministic Safety Technology for RBMK Reactors." Science and Technology of Nuclear Installations 2008 (2008): 1–7. http://dx.doi.org/10.1155/2008/781824.
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The present paper deals with the description of the technical activities conducted within the TACIS Project R2.03/97, 2 EC Contract no. 30303, related to RBMK. The project activities are focused toward the setting-up of a chain of computational tools suitable for the analysis of transients expected in the RBMK nuclear power plant (NPP). The accident leading to the rupture of one pressure channel, with fuel melting or high temperature damage, creep and brittle failure of the pressure tube and of graphite bricks with possibility of rupture propagation, constitutes the reference scenario for the project. However, a series of expected scenarios has been selected to prove the capability of the individual codes or chains of code in simulating the envisaged phenomenology. The paper summarizes the activities performed at NIKIET in Moscow and at University of Pisa (UNIPI) in Pisa. A top-down approach is pursued in structuring the executive summary that includes the following sections: (i) the safety needed for the RBMK NPP, (ii) the roadmap, (iii) the adopted computational tools, (iv) key findings, (v) Emphasis is given to the multiple pressure tube rupture (MPTR) issue and the individual channel monitoring (ICM) proposal.
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Smulczyk, Marek, Roman Dolata, and Artur Pokropek. "Selekcja na progu szkoły ponadgimnazjalnej: merytokracja czy statusowy determinizm?" Kwartalnik Pedagogiczny 64, no. 4 (254 (February 13, 2020): 216–36. http://dx.doi.org/10.5604/01.3001.0013.8470.
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The article presents the results of analyses of the impact of the socioeconomic status (SES) of the student’s family on the selection processes at the threshold of upper secondary school. It was checked whether SES affects these processes only through the results of the lower secondary school examination or there is a direct impact of this factor. The data used came from the nationwide survey of upper secondary school students, which was a Polish extension of OECD’s PISA study. The results of path modeling prove that there is a direct impact of status factors on the selection processes and its strength is similar to the SES effect mediated by the results of the lower secondary school (gimnazjum) examination.
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Pisante, Adriano, and Fabio Punzo. "Allen–Cahn approximation of mean curvature flow in Riemannian manifolds, II: Brakke's flows." Communications in Contemporary Mathematics 17, no. 05 (October 2015): 1450041. http://dx.doi.org/10.1142/s0219199714500412.
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We prove convergence of solutions to the parabolic Allen–Cahn equation to Brakke's motion by mean curvature in Riemannian manifolds with Ricci curvature bounded from below. Our results hold for a general class of initial conditions and extend previous results from [T. Ilmanen, Convergence of the Allen–Cahn equation to the Brakke's motion by mean curvature, J. Differential Geom. 31 (1993) 417–461] even in Euclidean space. We show that a sequence of measures, associated to energy density of solutions of the parabolic Allen–Cahn equation, converges in the limit to a family of rectifiable Radon measures, which evolves by mean curvature flow in the sense of Brakke. A key role is played by nonpositivity of the limiting energy discrepancy and a local almost monotonicity formula (a weak counterpart of Huisken's monotonicity formula) proved in [Allen–Cahn approximation of mean curvature flow in Riemannian manifolds, I, uniform estimates, to appear in Ann. Sc. Norm. Super. Pisa Cl. Sci.; arXiv:1308.0569], to get various density bounds for the limiting measures.
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Hamidi, Ali, Muhammad Syariful Anam, and Firdan Fadlan Sidik. "PENGEMBANGAN LITERASI KATABA UNTUK MENUNJANG PENDIDIKAN BERKUALITAS PERSPEKTIF QS. AL-‘ALAQ AYAT 1-5." Al-Madaris Jurnal Pendidikan dan Studi Keislaman 2, no. 2 (September 19, 2021): 1–12. http://dx.doi.org/10.47887/amd.v2i2.28.
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The Qur’an has a comprehensive view of the conception of education. Among the core of education is literacy. Student’s literacy skills are able to lead the nation’s generation to be literate and discover their potential. PISA research results in 2018 prove that Indonesia is ranked more than 10 and below in several assessment areas, such as reading, mathematics and science. The PISA 2018 data shows that the level of literacy in Indonesia is still low. Apart from the responsibility of the Ministry of Education and Culture (Kemdikbud) to develop educational policies, students also have a role as booster of the quality of education. Seeing the conception of literacy education from the perspective of the Qur’an, the KATABA Ma’had Al-Jami’ah became the object of research. The existence of this community acts as a support for the literacy atmosphere in the Ma’had environment which contributes to developing the world of writing and research. Through the qualitative method used in this study, the authors found that KATABA is a manifestation of the practice of the concept of literacy in Al-‘Alaq verses 1-5. The existence of literacy community among students contributes to the academic development of students. An increasing achievement index is one indicator of the success of the community in increasing the level of education in higher education.
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Freddano, Michela, and Anna Siri. ""Europa 2020" e la valutazione del sistema educativo italiano: un'analisi comparativa su OCSE PISA 2009 e le Prove INVALSI 2011/2012." RIV Rassegna Italiana di Valutazione, no. 55 (March 2014): 107–27. http://dx.doi.org/10.3280/riv2013-055007.
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Tashtoush, Mohammad A., Yousef Wardat, Faisal Aloufi, and Osama Taani. "The effect of a training program based on TIMSS to developing the levels of habits of mind and mathematical reasoning skills among pre-service mathematics teachers." Eurasia Journal of Mathematics, Science and Technology Education 18, no. 11 (October 19, 2022): em2182. http://dx.doi.org/10.29333/ejmste/12557.
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This study aimed to investigate the effect of a training program based on the trends in international mathematics and science study (TIMSS) on developing the habits of mind and mathematical reasoning skills among pre-service math teachers in Oman. The study sample consisted of 24 female pre-service math teachers divided into two equal groups: experimental and control. The study data was collected by sued the mathematical reasoning test and questionnaire that measured the level of habits of mind after appropriate validity and reliability. The study results showed statistically significant differences between the two study groups in favor of the experimental group in the mathematical reasoning test and the habits of mind scale. The study recommended that the need for pre-service math teachers to use programs based on international studies such as TIMSS, PISA, PIRLS, and TAILS; this was done to prove their effectiveness in developing the levels of habits of mind and mathematical reasoning skills by subjecting them to training programs, courses, and workshops with the aim of training teachers to implement the training programs effectively.
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Hrdličková, Zuzana. "IMPROVING STUDENTS’ LANGUAGE SKILLS IN BUSINESS ENGLISH COURSE: EXPERIMENTAL STUDY." Advanced Education 8, no. 18 (June 22, 2021): 46–56. http://dx.doi.org/10.20535/2410-8286.226493.
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It is evident from the PISA 2018 results that a trend in mean performance in reading has been declining in the Slovak Republic. The KEGA Project “Idioms in Business Communication”, run at the Department of English Language, aims at improving reading literacy, widening formal and informal vocabulary and facilitating business communication. Both traditional and modern styles of language teaching are used. The control group of students does a traditional course and the experimental group of students enrols in a “Business Communication” e-course on LMS Moodle platform, as well. With the use of the Internet and supporting materials, this group is involved in various activities. The paper compares the study results of 144 first-year and 97 second-year students of the University of Economics in Bratislava achieved in departmental standardised business English tests after completing three courses in business English for advanced students. The method of Hypothesis Testing (t-Test) assesses the significance of the difference between the levels of knowledge of both groups. The research findings prove that the experimental group of students achieved better results in final evaluation than the control group of students. The results also confirm that an alternative form of business English teaching was effective.
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Krylov, Igor B., Stanislav A. Paveliev, Mikhail A. Syroeshkin, Alexander A. Korlyukov, Pavel V. Dorovatovskii, Yan V. Zubavichus, Gennady I. Nikishin, and Alexander O. Terent’ev. "Hypervalent iodine compounds for anti-Markovnikov-type iodo-oxyimidation of vinylarenes." Beilstein Journal of Organic Chemistry 14 (August 16, 2018): 2146–55. http://dx.doi.org/10.3762/bjoc.14.188.
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The iodo-oxyimidation of styrenes with the N-hydroxyimide/I2/hypervalent iodine oxidant system was proposed. Among the examined hypervalent iodine oxidants (PIDA, PIFA, IBX, DMP) PhI(OAc)2 proved to be the most effective; yields of iodo-oxyimides are 34–91%. A plausible reaction pathway includes the addition of an imide-N-oxyl radical to the double C=C bond and trapping of the resultant benzylic radical by iodine. It was shown that the iodine atom in the prepared iodo-oxyimides can be substituted by various nucleophiles.
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Popovic, Dusanka. "Functional Literacy and Text Creation." European Journal of Social Sciences Education and Research 1, no. 1 (May 1, 2014): 95. http://dx.doi.org/10.26417/ejser.v1i1.p95-105.
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The results of research about functional literacy (i.e. ability to read, understand and create text and understand its further use), and especially those results that 15-year-olds show in Programme for International Student Assessment (PISA), as well as the importance of this competence for life and work in a modern society, indicate the need for analysis of all the segments that affect its development and improvement. Project How to help students to successfully create oral and written, artistic and non-artistic texts addresses this area in particular. The culture of oral and written expression, as productive language skills, is very interesting to research, and especially to improve. Inseparable from the receptive skills of listening and reading, they are their explicit product. A significant number of theorists and methodologists dealt with this area, but their activity was usually focused on what the teacher needed to do for the students to write well (focused on the process, method, or the result: students' written work). What is unquestionably lacking, but is in the spirit of the changes that we have introduced in our educational system, is dealing with the student as a creator of the text. The observations of methodologists of language and literature teaching prove that this factor in teacher-student-written work conjunction was least dealt with. They point out that the main characteristic of the current literature on the written expression is exaggerated orientation towards written works and neglecting of their authors (creators). The aim of the project was to investigate and recommend the best ways in which to build a functional literacy in the area of successful creation of oral and written text, i.e. to propose a more efficient teaching in the field of oral and written expression. This paper analyzes the opportunities for the development of these areas, providing current educational programs for Mother tongue language and literature in Montenegro, and presents the methodical approach The Creator's path designed as a means of support for all students when creation of text is in question.
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Lingard, Bob. "PISA: FUNDAMENTAÇÕES PARA PARTICIPAR E ACOLHIMENTO POLÍTICO." Educação & Sociedade 37, no. 136 (September 2016): 609–27. http://dx.doi.org/10.1590/es0101-73302016166670.
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RESUMO: Levando em consideração o trabalho da Organização para a Cooperação e o Desenvolvimento Econômico (OCDE) na educação e o lugar transformador que o Programa Internacional de Avaliação de Alunos (Pisa) ocupa nela, o presente artigo analisa a fundamentação da OCDE para o PISA. Para tal, abordam-se as estratégias de comunicação, a educação da OCDE e as habilidades que a Diretoria utiliza para administrar a mensagem do PISA. O documento também descreve as várias fundamentações que as nações empregam para participar no PISA. Os usos que são feitos do PISA no contexto nacional envolvem mais frequentemente a externalização do que a aprendizagem política, sendo os resultados comparativos do PISA aplicados para legitimar reformas políticas geralmente desconectadas das políticas de países com melhor desempenho no teste. O artigo apresenta três casos de tal externalização, levando-se em conta as respostas dadas nos Estados Unidos, na Inglaterra e na Austrália ao excelente desempenho de Xangai, China, na prova do PISA de 2009.
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André, Tamara Cardoso, and Enaide Severo De Araújo. "O MODELO DE LETRAMENTO DO PROGRAMA INTERNACIONAL DE AVALIAÇÃO DE ESTUDANTES (PISA)." Poíesis Pedagógica 15, no. 1 (September 3, 2018): 51. http://dx.doi.org/10.5216/rpp.v15i1.40727.
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Investiga a concepção de letramento em leitura do Programa Internacional de Avaliação de Estudantes (PISA) coordenado pela Organização para a Cooperação e o Desenvolvimento Econômico (OCDE). Analisa os seguintes documentos oficiais do PISA: Itens Liberados de Leitura 2009 (OCDE, 2012), Matriz de Avaliação de Leitura (OCDE, 2013) e Draft Reading Literacy Framework. (OCDE, 2013b). Compara a prova de leitura do PISA com a teoria do educador brasileiro Paulo Freire, que, segundo Street (1999), se aproxima da concepção mais emancipatória de letramento. Conclui que o teste do PISA não exige leitura crítica e conhecimento histórico, numa perspectiva muito diferente do modelo de Paulo Freire. Para completar o teste, o leitor deve se ater apenas ao que está explícito no texto, e não nas relações entre texto e contexto.
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Tartari Dias, Victor Henrique, and Márcia Aparecida Amador Mascia. "ILUSTRANDO DE VERMELHO:." Revista Educação em Debate 44, no. 87 (July 8, 2022): 122–35. http://dx.doi.org/10.24882/eemd.v44i87.81179.
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No atual cenário sociopolítico brasileiro, a discussão sobre o papel das avaliações externas e sua interferência na formação de políticas públicas educacionais tem sido cada vez mais presente. Este trabalho nasce do questionamento sobre como a avaliação do Programme for International Student Assessment (PISA) influencia a educação no Brasil e toma como perspectiva teórica a análise de discurso de linha francesa. A partir da pergunta de pesquisa, estabeleceu-se como objetivo geral refletir sobre a forma como a mídia representa e divulga os resultados das avaliações do PISA e como isso pode afetar a educação como um todo, no sentido de moldar as políticas públicas dos países que aplicam a prova, como o Brasil; como objetivos específicos, buscou-se levantar reportagens da Folha de São Paulo sobre a última avaliação do PISA, edição de 2018, e analisar discursivamente duas reportagens. O corpus escolhido para tal reflexão são duas reportagens do jornal Folha de São Paulo relacionadas à última edição do PISA em 2018. Mais do que divulgar os resultados e problematizar o futuro dos jovens brasileiros, o objetivo da prova é entender se os sistemas educacionais têm sido eficazes na formação de seus jovens. Para isso, realiza-se uma avaliação trianual com alunos de 15 anos, a fim de comparar o rendimento das economias que participam do PISA. Com o olhar da análise de discurso como fundação teórica, aponta-se o PISA como um dos instrumentos de objetivação que corrobora mudanças no atual cenário político da educação brasileira.
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Izzet, Vedia, and Robert Shorrock. "General." Greece and Rome 61, no. 1 (March 4, 2014): 142–46. http://dx.doi.org/10.1017/s0017383513000338.
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The last few years have brought us handbooks, companion guides and encyclopaedias in serried ranks. In size these works have ranged from magnum (opus) through to double magnum or perhaps (in the case of the 2010 Oxford Encyclopedia of Ancient Greece and Rome) to jeroboam. The new Wiley-Blackwell Encyclopedia of Ancient History outdoes them all in capacity (clearly a rehoboam) and range. This vast work – comprising over 5,000 entries in more than 7,000 pages – advances confidently (note the bold use of the definite article in the title: TheEncyclopedia of Ancient History) beyond the confines of the ‘classical world’ and ‘ancient Greece and Rome’ to provide nothing less than a reference work for the whole of Ancient History from the Near East to the Egypt of the Pharaohs, from the Neolithic to the eighth century ce. The refusal of this work to recognize traditional boundaries would clearly have appealed to the spirit of Alexander III, the Great (whose entry spans an impressive six pages). Alexander would no doubt also be impressed by the remarkable juxtapositions which occur within this alphabetized encyclopaedia: in volume 11 we move within five pages from an Egyptian residence and town associated with Rameses II (Piramese) to the Greek district of Elis around Olympia (Pisa) to a ‘short Jewish magical text of a Late Antique Babylonian provenance’ (Pishra de-Rabbi Hanina ben Dosa; 5337). Alexander's attempts at eastward expansion proved, in the end, too much for his men. One wonders if this work too – in the form of thirteen printed volumes – may prove to be similarly overwhelming to many an undergraduate whose starting point lies in Augustan Rome or Periclean Athens:(consider, for example the daunting thirty-five pages of maps which precede the first entry in volume 1 (not ‘Aardvark’, alas, but ‘Abantes’). However, it is important to consider that the print version of this work is not the end of the project nor even the main point of the project at all. The Encyclopedia of Ancient History is a true child of the World Wide Web. It has clearly been conceptualized as an online resource (not simply as a printed text that can be viewed on a computer screen) that will continue to expand and evolve: The electronic form of the EAH will continue to add new articles, indeed new areas of the ancient world; to revise existing ones; and to create spaces for correction and discussion of published articles – even, in line with our conviction of the open-endedness of history, counter-articles… . It will try to represent something of the unsettledness of our disciplines and their vitality. It will continue to evolve as historical studies do. (cxxxvi)
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Heinle Klein, Delci, and Clarice Salete Traversini. "Las matemáticas, las valoraciones exteriores y la construcción del índice de desarrollo de la educación básica (IDEB) brasileña / Mathematics, external evaluations and the construction of the Basic Education Development Index (IDEB) Brazilian." Revista Internacional de Educación y Aprendizaje 6, no. 1 (May 10, 2018): 10–18. http://dx.doi.org/10.37467/gka-revedu.v6.568.
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RESUMOO presente artigo traz alguns apontamentos acerca das avaliações externas [PISA e Prova Brasil] da Educação Básica brasileira, suas intersecções com a Matemática e com o Índice de Desenvolvimento da Educação Básica - IDEB. Procura mostrar como a Matemática pode ser um fato determinante de qualidade da educação, pois, ao compor a Prova Brasil, a proficiência em Matemática é utilizada na elaboração do IDEB, que, segundo o Ministério da Educação, visa “medir a qualidade de cada escola e rede de ensino”. Assim, buscamos nossa análise da proficiência em Matemática, de crianças e jovens brasileiros, a partir de dados do relatório do PISA 2012 e dos microdados do Instituto Nacional de Pesquisas Educacionais Anísio Teixeira- INEPABSTRACTThis article provides some notes about the external evaluations [ PISA and Proof Brazil ] of the Brazilian basic education, their intersections with Mathematics and the Development Index of Basic Education - IDEB . Seeks to show how mathematics can be a determining factor of the quality of education , therefore, to compose the Test Brazil , proficiency in mathematics is used in the preparation of IDEB , which , according to the Ministry of Education, aims to measure the quality of each school and school system . Thus , we seek our analysis of proficiency in mathematics in children and young Brazilians from the PISA 2012 report data and microdata from the National Institute of Research Anísio Teixeira- INEP .
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Pereira, Cátia Maria Machado da Costa, and Geraldo Eustáquio Moreira. "BRASIL NO PISA 2003 E 2012: OS ESTUDANTES E A MATEMÁTICA." Cadernos de Pesquisa 50, no. 176 (June 2020): 475–93. http://dx.doi.org/10.1590/198053146627.
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Resumo Este trabalho apresenta uma investigação sobre o desempenho dos estudantes brasileiros em Matemática no Pisa de 2003 e 2012. O objetivo foi verificar em qual conteúdo avaliado os estudantes apresentaram melhor desempenho e dispersão positiva na escala de níveis da avaliação. A estratégia empírica adotada foi descritiva e comparativa. Foram analisados relatórios do Inep (Instituto Nacional de Estudos e Pesquisas Educacionais Anísio Teixeira) e da OCDE/Pisa para compor a base de dados para análise comparativa das duas aplicações da prova. Os resultados apontam que os estudantes brasileiros apresentaram melhor desempenho e a mais significativa distribuição na escala Pisa em Indeterminação e Dados ou Probabilidade. Contudo o desempenho dos estudantes brasileiros, influenciado por uma multiplicidade de fatores, ainda está longe de atingir os níveis da OCDE.
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BDS, Deepanwita, and Hemalata Madaiah. "Association between interleukin-6, C-Reactive protein and periodontal inflamed surface area : a cross- Sectional investigation." RGUHS Journal of Dental Sciences 12, no. 1 (2020): 20–28. http://dx.doi.org/10.26715/rjds.12_1_6.
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Background and Objective: Periodontitis is a complex disease and is proven to be a risk factor for various systemic diseases by causing an inflammatory burden. CRP is an extremely sensitive marker for inflammation and its levels have been shown to be associated with periodontal inflammation. IL-6 has been shown to affect the production of CRP. To associate periodontal inflammation to any systemic disease it is necessary to quantify the amount of inflamed periodontal tissues. A new measure Periodontal Inflamed Surface Area (PISA) has been developed for the same. In the light of the above mentioned facts this study is designed to assess serum and GCF levels of CRP and IL-6 and correlate these with PISA in patients affected by chronic periodontitis. Materials and Methods: A total of 45 systemically healthy patients with chronic periodontitis participated in the study. Periodontal parameters, i.e BI, PI, CI, mean CAL and PISA (using spreadsheet by Huojel et al,2000) were recorded for all patients. GCF and serum samples were harvested from all subjects and samples were stored and analyzed for CRP and IL-6 using ELISA kits. Results: The PI, BI, CI and mean CAL had a positive correlation with PISA. BI and mean CAL had a significantly positive correlation with PISA (p<0.05). PISA also had a positive correlation with GCF levels of CRP (r=0.098, p=0.57), serum CRP levels (r=0.14, p=0.42), GCF IL-6 (r=0.89, p=0.61) and a significantly positive correlation was seen between PISA and serum levels of IL-6 (r=0.41, p=0.014). Also, there was a positive correlation between GCF and serum levels of CRP and IL-6. The serum levels of CRP and IL-6 had a significantly positive correlation (r=0.39, p=0.02). Conclusion: Higher PISA values were associated with higher serum levels of the inflammatory markers., thus proving that PISA could probably be used to correlate the local inflammatory burden with the systemic inflammatory burden.
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Mazorchuk, Mariia S., Tetyana S. Vakulenko, Anna O. Bychko, Olena H. Kuzminska, and Oleksandr V. Prokhorov. "Cloud technologies and learning analytics: web application for PISA results analysis and visualization." CTE Workshop Proceedings 8 (March 19, 2021): 484–94. http://dx.doi.org/10.55056/cte.302.
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This article analyzes the ways to apply Learning Analytics, Cloud Technologies, and Big Data in the field of education on the international level. This paper provides examples of international analytical researches and cloud technologies used to process the results of those researches. It considers the PISA research methodology and related tools, including the IDB Analyzer application, free R intsvy environment for processing statistical data, and cloud-based web application PISA Data Explorer. The paper justifies the necessity of creating a stand-alone web application that supports Ukrainian localization and provides Ukrainian researchers with rapid access to well-structured PISA data. In particular, such an application should provide for data across the factorial features and indicators applied at the country level and demonstrate the Ukrainian indicators compared to the other countries’ results. This paper includes a description of the application core functionalities, architecture, and technologies used for development. The proposed solution leverages the shiny package available with R environment that allows implementing both the UI and server sides of the application. The technical implementation is a proven solution that allows for simplifying the access to PISA data for Ukrainian researchers and helping them utilize the calculation results on the key features without having to apply tools for processing statistical data.
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Yang, Yongqi, Xiawei Li, Youjun Yan, Rongkai Pan, Jun Liu, Meng Lian, Xin Luo, and Guangyao Liu. "RAFT polymerization-induced self-assembly of poly(ionic liquids) in ethanol." e-Polymers 22, no. 1 (January 1, 2022): 803–8. http://dx.doi.org/10.1515/epoly-2022-0069.
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Abstract Poly(ionic liquids) (PILs) exhibit better durability, processability, and mechanical stability than ionic liquids. PIL self-assembly in green solvents is a well-established strategy for preparing polyelectrolytes. Reversible addition-fragmentation chain transfer (RAFT) polymerization-induced self-assembly (PISA) has proven to be the most controllable method for synthesizing polyelectrolytes. However, there have been few reports on preparing high-order morphology PILs by RAFT-PISA. A new type of ionic monomer, 1-butyl-3-(4-vinylbenzyl)imidazolium hexafluorophosphate ([BVBIm][PF6]), was prepared from substitution reaction and ion exchange reaction of 1-butylimidazole and 4-vinylbenzyl chloride. Herein, various morphologies, including spheres, worms, and vesicles, were easily obtained via RAFT ethanolic dispersion polymerization using poly(N,N-dimethylacrylamide) (PDMA43) as the macromolecular chain transfer agent and [BVBIm][PF6] as the monomer. Dispersion polymerization kinetic experiments, dynamic light scattering, transmission electron microscopy, and differential scanning calorimetry were used to investigate the PDMA43-b-P([BVBIm][PF6]) x block nanoparticles. This efficient RAFT-PISA method for preparing functionalized PIL nano-objects with controlled morphologies represents significant progress in this field.
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Caldato, João, and Carlos Augusto Aguilar Júnior. "Argumentação e Prova em Matemática: uma análise dos itens públicos do PISA 2012." Revista Baiana de Educação Matemática 1 (December 22, 2020): e202021. http://dx.doi.org/10.47207/rbem.v1i.10321.
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Neste artigo, o objetivo é analisar os itens públicos do Programa Internacional de Avaliação dos Estudantes (PISA, em inglês) de 2012 que versem sobre argumentação e prova em Matemática. Estes itens exploram os três processos matemáticos (formular, empregar e interpretar), fundamentais para o desenvolvimento da capacidade de raciocinar e argumentar, e definem o letramento matemático segundo a matriz de referência do PISA. Na abordagem teórico-metodológica, recorremos a trabalhos referenciados na literatura que discutem as funções da prova, bem como apresentam outros trabalhos exploratórios envolvendo estudantes e professores. O estudo se caracteriza por uma pesquisa documental, de cunho qualitativo. No levantamento realizado na base de questões públicas disponível no site do Instituto Nacional de Estudos e Pesquisas Educacionais Anísio Teixeira (INEP), selecionamos 10 itens que atendiam a critérios previamente estabelecidos e procedemos à análise de três destes itens, um de cada processo matemático, à luz dos referenciais que discutem os papéis da prova. Os resultados mostram que os itens buscam mobilizar no estudante habilidades que tencionam o desenvolvimento do raciocínio lógico, conforme estabelecido na BNCC. A título de conclusões parciais, consideramos que a abordagem dessas questões em avaliações de largo alcance, bem como em avaliações institucionais (realizadas pela própria escola), estimula o trabalho pedagógico voltado à construção das habilidades de argumentar e demonstrar, que serão úteis tanto para o desenvolvimento em Matemática como também para sua atuação em um contexto social mais ampliado.
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Yasmin, Regina Yulia, Putri Saptawati, and Benhard Sitohang. "Classification with Single Constraint Progressive Mining of Sequential Patterns." International Journal of Electrical and Computer Engineering (IJECE) 7, no. 4 (August 1, 2017): 2142. http://dx.doi.org/10.11591/ijece.v7i4.pp2142-2151.
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<span>Classification based on sequential pattern data has become an important topic to explore. One of research has been carried was the Classify-By-Sequence, CBS. CBS classified data based on sequential patterns obtained from AprioriLike sequential pattern mining. Sequential patterns obtained were called CSP, Classifiable Sequential Patterns. CSP was used as classifier rules or features for the classification task. CBS used AprioriLike algorithm to search for sequential patterns. However, AprioriLike algorithm took a long time to search for them. Moreover, not all sequential patterns were important for the user. In order to get the right and meaningful features for classification, user uses a constraint in sequential pattern mining. Constraint is also expected to reduce the number of sequential patterns that are short and less meaningful to the user. Therefore, we developed CBS_CLASS* with Single Constraint Progressive Mining of Sequential Patterns or Single Constraint PISA or PISA*. CBS_Class* with PISA* was proven to classify data in faster time since it only processed lesser number of sequential patterns but still conform to user’s need. The experiment result showed that compared to CBS_CLASS, CBS_Class* reduced the classification execution time by 89.8%. Moreover, the accuracy of the classification process can still be maintained.</span><p> </p>
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Bastari, Rendy Pandita, Idhar Resmadi, and Jiwa Utama. "Pica Magz/Pica Fest: Creative Economy In Bali Subculture." Komunitas 14, no. 1 (March 30, 2022): 27–42. http://dx.doi.org/10.15294/komunitas.v14i1.36334.
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.Bali's creative economy in 2020 shows that 26.26% was dominated by music, 12.64% from performing arts, 8.29% from culinary, and 52.81% from other sub-sectors. By looking at the data, there are one sub-sector that is not quite as significant as the others and that is fashion. One subculture actor who is quite active in the local fashion industry is Pica, subdivided by Picamagz and Pica Fest. They are quite constant in holding subcultural events such as music shows and fashion festival. This proves that local fashion industry can give contribution and can also be supported by other industry. The purpose of this study is to analyze the social creative field of Picamagz and Pica Fest. The method used for this study is qualitative descriptive with the validation from interviews and observation. The result of this study shows that that the field of expression, production, dissemination and appreciation filled with active actors who holds their respective role.
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Fernandes, Ketulyn Ferreira, and Márcia Aparecida Amador Mascia. "ANÁLISE DISCURSIVA DOS RESULTADOS DO PISA-BRASIL NO SITE DO INEP." Cadernos Cajuína 5, no. 3 (September 2, 2020): 412. http://dx.doi.org/10.52641/cadcaj.v5i3.368.
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<p>A partir do escopo teórico discursivo, este artigo pretendeu analisar o PISA-Brasil com enfoque nos resultados pertencentes ao ano de 2015. O PISA (Programme for International Student Assessment) realiza provas a cada 3 anos com estudantes de 15 anos de idade, por ser esta a idade do último ano de escolaridade obrigatória, coincidindo com a maioria dos países participantes dentre os mais de 100 países membros e não-membros da OCDE (Organização para Cooperação e Desenvolvimento Econômico). Em nível mundial, o PISA é coordenado pela OCDE e em nível brasileiro pelo INEP (Instituto Nacional de Estudos e Pesquisas Educacionais Anísio Teixeira), responsável pela função de elaboração e aplicação da prova no Brasil, possuindo cada país seu órgão próprio. Levando em conta o contexto apresentado acima, o objetivo deste artigo é levantar os sentidos sobre os resultados do PISA dispostos no site do INEP, e como eles constroem novos regimes de verdade em educação. Pretende-se compreender as discursividades contemporâneas em relação às avaliações externas e como elas afetam a educação, primordialmente, a educação brasileira. Do ponto de vista do referencial teórico, pautamo-nos na análise do discurso em linha francesa, que considera o sujeito como efeito do discurso e o discurso como situado socio-ideológico-historicamente, sendo que os dizeres não nascem nos sujeitos, mas nas formações discursivas dentro das quais o sujeito se situa. Os resultados da análise apontam que as políticas públicas devem investir mais nas condições socioeconômicas gerais de um país de modo a diminuir as desigualdades sociais, ao invés de só focar na educação. Países com maiores desempenhos são países que investem em equidade social.</p>
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Jeganathan, Selvaprabu, Arun Raj Lakshminarayanan, Nandhakumar Ramachandran, and Godwin Brown Tunze. "Predicting Academic Performance of Immigrant Students Using XGBoost Regressor." International Journal of Information Technology and Web Engineering 17, no. 1 (January 1, 2022): 1–19. http://dx.doi.org/10.4018/ijitwe.304052.
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The education sector has been effectively dealing with the prediction of academic performance of the Immigrant students since the research associated with this domain proves beneficial enough for those countries where the ministry of education has to cater to such immigrants for altering and updating policies in order to elevate the overall education pedagogy for them. The present research begins with analyzing varied educational data mining and machine learning techniques that helps in assessing the data fetched form PISA. It’s elucidated that XGBoost stands out to be the ideal most machine learning technique for achieving the desired results. Subsequently, the parameters have been optimized using the hyper parameter tuning techniques and implemented on the XGBoost Regressor algorithm. Resultant there is low error rate and higher level of predictive ability using the machine learning algorithms which assures better predictions using the PISA data. The final results have been discussed along with the upcoming future research work.
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Kundu, Krishanu, Avneesh Dubey, Ankur Dhama, and Narendra Nath Pathak. "Planar Inverted F Antenna, PIFA Array in 5G applications." Journal of Physics: Conference Series 2062, no. 1 (November 1, 2021): 012002. http://dx.doi.org/10.1088/1742-6596/2062/1/012002.
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Abstract Planar inverted F antenna (PIFA) is mainly fit for mobile devices. PIFA is mostly designed for dual band frequencies as it is capable of covering wide range of wireless services. This in turn helps in making it acceptable for designing mobile devices. Sizes of ground plane as well as PIFA’s position with respect to ground plane actually effect the performance of PIFA. For example, placement of PIFA at corner of ground plane shows good radiation pattern. Major prerequisite of 5G is nothing but the capability to enhance data volume to every single user, while supporting majority of mobile users as well as new maneuvers. The best part is advanced antenna array technologies are able to meet such requirements. Although PIFA antenna has gained popularity in designing mobile handsets, because of light weight, lower cost as well as higher directivity, PIFA antenna Arrays have been proved to be strong foundation for future 5G Mobile Communication Systems as PIFA Arrays provide better gain than single PIFA antenna in same frequency band. Current work presents a comprehensive study on so far impact of PIFA as well as PIFA Array in providing infrastructure for future mobile innovations suitable for 5G communication.
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Klein, Ruben. "Uma re-análise dos resultados do PISA: problemas de comparabilidade." Ensaio: Avaliação e Políticas Públicas em Educação 19, no. 73 (December 2011): 717–68. http://dx.doi.org/10.1590/s0104-40362011000500002.
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Neste artigo apresenta-se um problema de comparabilidade de resultados entre aplicações do Pisa, em alguns países, em diversos anos e entre países. Esse problema ocorre porque a idade escolar de cada país não é considerada e porque não há uma regra para a data de aplicação da prova em relação aos anos letivos de cada país. A mudança de data da aplicação em um país modifica a composição do alunado entre as séries, tornando os universos não comparáveis. Analisa-se com detalhes o caso do Brasil e mostra-se que os universos de 2000 e 2009 não são comparáveis. Analisa-se também alguns outros países, entre eles Luxemburgo e Chile, que, juntos com o Brasil, foram destacados como tendo a maior evolução de desempenho desde 2000. Em Luxemburgo, não houve melhoria de desempenho de 2003 para 2009 e é preciso investigar porque os resultados de 2000 e 2003 são tão diferentes. O Chile apresenta melhoria de desempenho, mas provavelmente não tão grande quanto o apontado.
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Silva, Luciano Campos da, and Daniel Abud Seabra Matos. "Indisciplina no PISA: entre o intra e o extraescolar." Estudos em Avaliação Educacional 28, no. 68 (August 31, 2017): 382. http://dx.doi.org/10.18222/eae.v28i68.4590.
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<p>São objetivos deste trabalho: analisar o fenômeno da indisciplina escolar por meio dos dados do PISA 2012; aplicar um modelo de regressão linear multinível tendo o clima disciplinar como variável dependente; e identificar fatores explicativos intra e extraescolares associados à indisciplina. A contribuição mais significativa deste trabalho é apontar que a indisciplina parece ser mais dependente de fatores intra do que extraescolares. Variáveis clássicas como nível socioeconômico, tipo de escola e gênero não apresentaram poder explicativo sobre a indisciplina, o que tenciona a tese de que o fenômeno se associaria diretamente à origem social dos estudantes. A proporção de repetentes da escola se mostrou o fator de maior impacto na indisciplina.</p><p><strong>Palavras-chave:</strong> Indisciplina Escolar; PISA; Regressão Linear Multinível; Comportamento do Aluno.</p><p> </p><p><strong><em>Indisciplina en el PISA: entre lo intra y lo extraescolar</em></strong></p><p><em>Son los siguientes los objetivos de este trabajo: analizar el fenómeno de la indisciplina escolar por medio de los datos del PISA 2012; aplicar un modelo de regresión lineal multinivel con el clima disciplinar como variable dependiente; e identificar factores explicativos intra y extraescolares asociados a la indisciplina. La contribución más significativa de este trabajo es la de señalar que la indisciplina parece ser más dependiente de factores intra que extraescolares. Variables clásicas como el nivel socioeconómico, el tipo de escuela y el género no presentaron poder explicativo sobre la indisciplina, lo que proyecta la tesis de que el fenómeno se asociaría directamente al origen social de los estudiantes. La proporción de repetidores de la escuela se mostró el factor de mayor impacto en la indisciplina.</em></p><p><em><strong>Palabras-clave:</strong> Indisciplina Escolar; PISA; Regresión Lineal Multinivel; Comportamiento del Alumno.</em></p><p><em> </em></p><p><strong><em>Indiscipline in PISA: between intra- and extra-school factors</em></strong></p><p><em>This study aims to analyze the phenomenon of school discipline using data from the PISA 2012; to apply a multilevel linear regression model considering the disciplinary climate as the dependent variable and to identify explanatory intra and extra-school factors associated with discipline. The most significant contribution of this paper is to point out that the discipline issue seems to be more dependent on intra than extra school factors. Classical variables such as socioeconomic status, type of school and gender had no influence on discipline, presupposing the idea that the phenomenon is directly associated to students’ social background. The proportion of repeat students in school proved to be the factor of greatest impact on discipline.</em></p><p><em><strong>Keywords:</strong> School Indiscipline; PISA; Multilevel Linear Regression; Student Behavior.</em></p>
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Spence, Haden. "A Modular André–Oort Statement with Derivatives." Proceedings of the Edinburgh Mathematical Society 62, no. 2 (November 16, 2018): 323–65. http://dx.doi.org/10.1017/s001309151800041x.
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AbstractIn unpublished notes, Pila discussed some theory surrounding the modular function j and its derivatives. A focal point of these notes was the statement of two conjectures regarding j, j′ and j″: a Zilber–Pink-type statement incorporating j, j′ and j″, which was an extension of an apparently weaker conjecture of André–Oort type. In this paper, I first cover some background regarding j, j′ and j″, mostly covering the work already done by Pila. Then I use a seemingly novel adaptation of the o-minimal Pila–Zannier strategy to prove a weakened version of Pila's ‘Modular André–Oort with Derivatives’ conjecture. Under the assumption of a certain number-theoretic conjecture, the central theorem of the paper implies Pila's conjecture in full generality, as well as a more precise statement along the same lines.
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Napp, Montalvo, Piñol-Baena, Gómez-Martín, Nicolás-Francisco, Soler, and Busquets. "Usefulness of Eurasian Magpies (Pica pica) for West Nile virus Surveillance in Non-Endemic and Endemic Situations." Viruses 11, no. 8 (August 5, 2019): 716. http://dx.doi.org/10.3390/v11080716.
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: In September 2017, passive surveillance allowed the detection of West Nile virus (WNV) lineage 2 for the first time in northern Spain in a northern goshawk (Accipiter gentilis). However, a cross sectional study carried out in Eurasian magpies (Pica pica) in a nearby area evidenced that WNV had been circulating two months earlier. Therefore, active surveillance in Eurasian magpies proved its effectiveness for the early detection of WNV in a non-endemic area. Further surveys in 2018 and the beginning of 2019 using young magpies (i.e., born after 2017) showed the repeated circulation of WNV in the same region in the following transmission season. Therefore, active surveillance in Eurasian magpies as well proved to be useful for the detection of WNV circulation in areas that may be considered as endemic. In this manuscript we present the results of those studies and discuss reasons that make the Eurasian magpies an ideal species for the surveillance of WNV, both in endemic and non-endemic areas.
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Dancaková, Darya, Jozef Glova, and Alena Andrejovská. "The Robust Efficiency Estimation in Lower Secondary Education: Cross-Country Evidence." Mathematics 9, no. 24 (December 15, 2021): 3249. http://dx.doi.org/10.3390/math9243249.
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In this study, we assessed the efficiency of compulsory lower secondary education. We selected three variables that may significantly affect students’ performance in a particular country. First, we assumed that student scores achieved in PISA testing determine the number of monetary funds spent on these three variables, specifically student–teacher ratio, class size, and the annual number of hours spent in school. Second, we evaluated the efficiency of education in a sample of 24 different OECD countries, comparing the students’ performance in PISA 2018. Third, we used the two-stage data envelopment analysis with a bootstrapping procedure for estimating technical efficiency scores. Finally, we applied OLS and quantile regression, where our regression estimates in both models showed a positive effect of GDP per capita on students’ achievement across countries. The positive impact of GDP per capita was significant only for the least efficient countries. Conversely, the level of impact of parental education was much stronger and more positive for the inefficient countries and proved to be negative for more efficient countries.
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Dias, Bruno Francisco Batista, Sandra Regina Holanda Mariano, and Robson Moreira Cunha. "Educação Básica na América Latina: uma análise dos últimos dez anos a partir dos dados do programa internacional de avaliação de estudantes (PISA)." Revista Pensamento Contemporâneo em Administração 11, no. 4 (October 20, 2017): 1. http://dx.doi.org/10.12712/rpca.v11i4.1065.
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A Diretoria de Educação da OCDE formulou, em 1997, o Programa Internacional de Avaliação de Alunos (Programme for International Student Assessment – PISA), com o objetivo de contribuir para a elevação do capital humano dos países, definido pelas “habilidades de conhecimento, competências e atributos incorporados em indivíduos que facilitem a criação de bem-estar pessoal, social e econômico". Os resultados dos páises da America Latina nesse exame apresenta resultados proximos a de países de extrema pobreza, como os do Norte da Áfrical, sendo baixo nível de desempenho dos estudantes dessa região fatores determinantes para crescimentos econômicos inferiores aos demais países do mundo nas últimas quatro décadas. Diante dessa problematica, este estudo se propõe a conhecer a realidade da educação pública básica dos sete países da américa latina que participam do PISA na última década, compara-la com os resultados obtidos no exame, e identificar possíveis fatores que se relacionam, tanto com o baixo, quanto ao alto desempenho observados em algumas dessas regiões. Sendo o foco deste artigo prover informações que permita comparar a realidade da educação dessas nações.
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Prihartanti, Frederika Widi, Wiedy Murtini, and Mintasih Indriayu. "The Need of Financial Literacy Proficiency Level for Generation Z Students at School." Eduvest - Journal Of Universal Studies 2, no. 3 (March 19, 2022): 598–602. http://dx.doi.org/10.36418/edv.v2i3.383.
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Financial Literacy has a significant role in the individual decision-making process. Existing studies have proven that that lower levels of financial literacy lead to irrational financial decisions funds as well as savings and debt. Basically, Indonesian students in PISA 2018 have the lowest mean scores compared to other countries. At the same time, there is no integration in Indonesia curriculum with financial education. This study focuses on a review of financial education used in the current literature as well as their corresponding limitations.
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Gandhi, Sirin, Justin Mascitelli, Douglas Hardesty, and Michael T. Lawton. "Far Lateral Craniotomy for Posterior Inferior Cerebellar Artery–Posterior Inferior Cerebellar Artery Bypass and Trapping of Posterior Inferior Cerebellar Artery Aneurysm: 3-Dimensional Operative Video." Operative Neurosurgery 16, no. 4 (August 7, 2018): E119—E120. http://dx.doi.org/10.1093/ons/opy201.
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Abstract Posterior inferior cerebellar artery (PICA) aneurysms account for 3% to 4% of all intracranial aneurysms with an unusually high predilection towards a nonsaccular morphology making microsurgical clipping or endovascular reconstruction of the parent artery difficult. The management of these complicated aneurysms may require revascularization procedures for flow preservation with aneurysm trapping. Recently, there is an increasing inclination towards intracranial–intracranial (IC-IC) bypasses over traditional extracranial donors. This video demonstrates a side-to-side PICA–PICA in situ bypass with trapping of an unruptured incidental right p1-PICA aneurysm. Radiological lesion progression and presence of dysplastic morphological characteristics prompted surgical management. The aneurysm was not amenable to clip reconstruction due to the dysplastic PICA segment and lack of a discernable neck. Institutional Review Board approval and patient consent were sought. With patient in three-quarter-prone position, a right far lateral craniotomy was performed. A left-to-right p3-p3 PICA bypass was completed. The aneurysm was clipped along with proximal PICA at its takeoff from vertebral artery. Indocyanine green videoangiography revealed complete occlusion of aneurysm and proximal PICA and a patent anastomosis with distal right PICA flow. Postoperatively, patient recovered with no new neurological deficits. Dolichoectatic posterior circulation aneurysms are not readily amenable to clip reconstruction. PICA–PICA in situ bypass is an elegant alternative to existing extracranial–intracranial revascularization constructs (occipital artery to PICA).1 There is lower neurological morbidity associated with IC-IC bypass vs PICA reimplantation due to the deep surgical corridor and its proximity to lower cranial nerves. Additionally, in this patient endovascular occlusion posed a higher risk of thrombotic complications and postprocedural cerebellar edema with brainstem compression.2
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Binyamini, Gal, and Dmitry Novikov. "The Pila–Wilkie theorem for subanalytic families: a complex analytic approach." Compositio Mathematica 153, no. 10 (July 27, 2017): 2171–94. http://dx.doi.org/10.1112/s0010437x17007333.
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We present a complex analytic proof of the Pila–Wilkie theorem for subanalytic sets. In particular, we replace the use of $C^{r}$-smooth parametrizations by a variant of Weierstrass division. As a consequence we are able to apply the Bombieri–Pila determinant method directly to analytic families without limiting the order of smoothness by a $C^{r}$ parametrization. This technique provides the key inductive step for our recent proof (in a closely related preprint) of the Wilkie conjecture for sets definable using restricted elementary functions. As an illustration of our approach we prove that the rational points of height $H$ in a compact piece of a complex-analytic set of dimension $k$ in $\mathbb{C}^{m}$ are contained in $O(1)$ complex-algebraic hypersurfaces of degree $(\log H)^{k/(m-k)}$. This is a complex-analytic analog of a recent result of Cluckers, Pila, and Wilkie for real subanalytic sets.
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Madan Kumar, K. M. V., and B. Srinivasa Rao. "Mining Frequent Utility Sequential Patterns in Progressive Databases by U-Pisa." Journal of Computational and Theoretical Nanoscience 17, no. 4 (April 1, 2020): 1786–95. http://dx.doi.org/10.1166/jctn.2020.8442.
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Sequential pattern mining is one of the most important aspects of data mining world and has a significant role in many applications like market analysis, biomedical analysis, weather forecasting etc. In the category of mining sequential patterns the usage of progressive database as an input database is relatively new and has a wide impact in decision-making system. In progressive sequential pattern mining, we discover the frequent sequences progressively with the help of period of Interest. As the traditional approaches of frequency based framework are not much more informative for decision making, in recent effort utility framework has been incorporated instead of frequency. This addressed many typical business concerns such as profit value associated with each pattern. In this paper, we applied the concept of frequent utility over the progressive database and discovered the sequential pattern efficiently. To do so we proposed an algorithm called U-Pisa which works progressively with the help of a quantitative progressive database. We conducted sub-stantial experiments on the proposed algorithm and proved that this process performs well.
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Murakami, Tomoaki, Shingo Toyota, Kanji Nakagawa, Tatsuya Hagioka, Yuhei Hoshikuma, Takuya Suematsu, Takeshi Shimizu, Maki Kobayashi, and Takuyu Taki. "Midline suboccipital approach to a vertebral artery–posterior inferior cerebellar artery aneurysm from the rostral end of the patient using ORBEYE." Surgical Neurology International 13 (March 11, 2022): 87. http://dx.doi.org/10.25259/sni_1272_2021.
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Background: The midline suboccipital approach with the patient in the prone position is safe and effective for clipping vertebral artery–posterior inferior cerebellar artery (VA–PICA) aneurysms. Using a conventional surgical microscope from the rostral end of the patient for this approach without an extreme head-down position requires the surgeon to overhang the visual axis of the microscope and perform surgical manipulations in an uncomfortable posture. We report performing the midline suboccipital approach from the rostral end with slight head-down position using ORBEYE, a new high-definition (4K) three-dimensional exoscope. Case Description: A 65-year-old woman was admitted for clipping of a right unruptured VA–PICA aneurysm (maximum diameter, 5mm) located medially and ventral to the hypoglossal canal. After induction of general anesthesia, the patient was placed in the prone position with the head titled slightly downward. A midline suboccipital approach was performed from the rostral end of the patient using ORBEYE. Clipping was safely accomplished in a comfortable posture. No operative complications occurred. Postoperative computed tomography angiography showed complete aneurysmal obstruction. Conclusion: Exoscopic surgery using ORBEYE is feasible for a midline suboccipital approach to VA–PICA aneurysms from the rostral end of the patient with the patient in the prone with slight head-down position.
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Duru-Bellat, Marie, and Bruno Suchaut. "Organisation and Context, Efficiency and Equity of Educational Systems: What PISA Tells Us." European Educational Research Journal 4, no. 3 (September 2005): 181–94. http://dx.doi.org/10.2304/eerj.2005.4.3.3.
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After describing both average scores, dispersion, and social inequalities in achievement in the various countries included in the latest Programme for International Student Assessment (PISA) study, this article relates those ‘products' to country economic and cultural characteristics. It then explores relations between student scores and a number of institutional characteristics of countries' educational systems. Results show that relations exist between average scores and certain institutional or pedagogical practices such as grade repeating or tracking. A high degree of social inequality in achievement proves to be associated with overall score dispersion and degree to which educational system differentiates among students.
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Bercu, Vasile, Carlo Andrea Massa, Silvia Pizzanelli, Luca Pardi, Dino Leporini, and Massimo Martinelli. "Glassforming Liquids, Amorphous and Semicrystalline Polymers: Exploring their Energy Landscape and Dynamical Heterogeneity by Multi-frequency High-Field EPR." Applied Magnetic Resonance 51, no. 11 (October 28, 2020): 1591–605. http://dx.doi.org/10.1007/s00723-020-01248-4.
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AbstractWe review past and recent work carried out on viscous liquids, amorphous and semicrystalline polymers by multifrequency high-field electron paramagnetic resonance (HF-EPR) facility in Pisa. The emphasis is on the enhanced ability to provide fine details of the reorientation process of the paramagnetic guest, the spin probe, revealing features driving the dynamics of the host system, including the energy-barrier distribution of glassy polymers, the dynamical heterogeneity of semicrystalline polymers, and the dynamical changes occurring at the critical temperature predicted by the ideal mode-coupling theory.
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Putra, Ardian. "PENENTUAN RESISTIVITAS LISTRIK MORTAR MENGGUNAKAN METODE PROBE DUA ELEKTRODA." JURNAL ILMU FISIKA | UNIVERSITAS ANDALAS 4, no. 2 (September 20, 2012): 62–66. http://dx.doi.org/10.25077/jif.4.2.62-66.2012.
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Penentuan resistivitas listrik campuran semen dan pasir dengan perbandingan antara air dan semen (rasio w/c) 0,45, 0,5 dan 0,55 diukur menggunakan metode probe dua elektroda. Campuran merupakan komposisi material dengan massa semen 200 g dan variasi massa pasir 100 g, 150 g, 200 g, 250 g dan 300 g. Campuran dibentuk dalam sebuah pipa berdiameter 5,66 cm dan tinggi 9,80 cm, dan diuji menggunakan elektroda tembaga. Kenaikan massa pasir dan peningkatan rasio w/c mengakibatkan kenaikan resistivitas listrik.
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Burkhardt, Jan-Karl, Ethan A. Winkler, George F. Lasker, John K. Yue, and Michael T. Lawton. "Isolated abducens nerve palsy associated with subarachnoid hemorrhage: a localizing sign of ruptured posterior inferior cerebellar artery aneurysms." Journal of Neurosurgery 128, no. 6 (June 2018): 1830–38. http://dx.doi.org/10.3171/2017.2.jns162951.
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OBJECTIVECompressive cranial nerve syndromes can be useful bedside clues to the diagnosis of an enlarging intracranial aneurysm and can also guide subsequent evaluation, as with an acute oculomotor nerve (cranial nerve [CN] III) palsy that is presumed to be a posterior communicating artery aneurysm and a surgical emergency until proven otherwise. The CN VI has a short cisternal segment from the pontomedullary sulcus to Dorello’s canal, remote from most PICA aneurysms but in the hemodynamic pathway of a rupturing PICA aneurysm that projects toward Dorello’s canal. The authors describe a cranial nerve syndrome for posterior inferior cerebellar artery (PICA) aneurysms that associates subarachnoid hemorrhage (SAH) and an isolated abducens nerve (CN VI) palsy.METHODSClinical and radiological data from 106 surgical patients with PICA aneurysms (66 ruptured and 40 unruptured) were retrospectively reviewed. Data from a group of 174 patients with other aneurysmal SAH (aSAH) were analyzed in a similar manner to control for nonspecific effects of SAH. Univariate statistical analysis compared incidence and risk factors associated with CN VI palsy in subarachnoid hemorrhage.RESULTSOverall, 13 (4.6%) of 280 patients had CN VI palsy at presentation, and all of them had ruptured aneurysms (representing 13 [5.4%] of the 240 cases of ruptured aneurysms). CN VI palsies were observed in 12 patients with ruptured PICA aneurysms (12/66 [18.1%]) and 1 patient with other aSAH (1/174 [0.1%], p < 0.0001). PICA aneurysm location in ruptured aneurysms was an independent predictor for CN VI palsy on multivariate analysis (p = 0.001). PICA aneurysm size was not significantly different in patients with or without CN VI palsy (average size 4.4 mm and 5.2 mm, respectively). Within the PICA aneurysm cohort, modified Fisher grade (p = 0.011) and presence of a thick cisternal SAH (modified Fisher Grades 3 and 4) (p = 0.003) were predictors of CN VI palsy. In all patients with ruptured PICA aneurysms and CN VI palsy, dome projection and presumed direction of rupture were directed toward the ipsilateral and/or contralateral Dorello’s canal, in agreement with laterality of the CN palsy. In patients with bilateral CN VI palsies, a medial projection with extensive subarachnoid blood was observed near bilateral canals.CONCLUSIONSThis study establishes a localizing connection between an isolated CN VI palsy, SAH, and an underlying ruptured PICA aneurysm. CN VI palsy is an important clinical sign in aSAH and when present on initial clinical presentation may be assumed to be due to ruptured PICA aneurysms until proven otherwise. The deficit may be ipsilateral, contralateral, or bilateral and is determined by the direction of the aneurysm dome projection and extent of subarachnoid bleeding toward Dorello’s canal, rather than by direct compression.
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Tomić, Svetlana. "A woman buried in footnotes: Dr. Vukosava Milojević (1898-1985), the author of the first essential scholarly monograph about Jovan Skerlić: A research note." Reci, Beograd 11, no. 1 (2019): 186–97. http://dx.doi.org/10.5937/reci1912186t.
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Zalyalova, Z. A., and E. I. Bogdanov. "Extrapyramidal disorders due to the intake of antipsychotics." Neurology Bulletin XXXII, no. 3-4 (July 15, 2000): 52–59. http://dx.doi.org/10.17816/nb79486.
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Among the side effects of taking antipsychotics, the leading place is occupied by extrapyramidal syndromes (ES) - akathisia, acute and tardive dyskinesia, parkinsonism, syndrome of the "leaning tower of Pisa", "rabbit", acute neuroleptic syndrome. The concept of a neuroleptic threshold assumes the simultaneous development of an antipsychotic effect and the emergence of an extrapyramidal syndrome. It has been proven that most antipsychotics have a limited therapeutic dose corridor, and ES caused by antipsychotics, which reduces the quality of life, occurs in 50-60% of cases and is the main reason for stopping treatment with these drugs [19].
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Taufik Iqbal, Muh. "PENENTUAN KEHILANGAN ENERGI AKIBAT KEKASARAN DINDING PIPA PADA SISTEM JARINGAN PIPA DENGAN MENGGUNAKAN SOFTWARE WATERCAD V8i." PROKONS Jurusan Teknik Sipil 9, no. 1 (February 28, 2015): 32. http://dx.doi.org/10.33795/prokons.v9i1.81.
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Sistem perpipaan berfungsi untuk mengalirkan zat cair dari satu tempat ke tempat yang lain. Aliran terjadi karena adanya perbedaan tinggi tekanan pada kedua tempat, yang biasa terjadi karena adanya perbedaan elevasi muka air atau karena digunakannya pompa. Aliran fluida didalam pipa mengalami kehilangan energi seiring dengan panjang pipa yang dilalui, yang diakibatkan kekasaran pipa, panjang pipa, diameter pipa, dan jenis fluida. Tujuan dari penelitian ini adalah untuk mengetahui efek kekasaran dinding pipa terhadap kecepatan aliran dan untuk mengetahui perbedaan antara kecepatan aliran terhadap kekasaran dinding pipa jika menggunakan manometer manual dengan dengan software WaterCad V8i. Pada percobaan ini dilakukan dua percobaan, yaitu percobaan menggunakan manometer manual didalam laboratorium dengan berbagai macam variasi diameter dan jenis pipa yaitu pipa halus dan pipa kasar dengan percobaan menggunakan aplikasi WaterCad V8i. Pada percobaan pipa halus semakin besar nilai kecepatan aliran (0,792 m/s – 3,740 m/s) dalam pipa, maka nilai kehilangan energi (0,028 – 4,813) juga akan semakin besar. Ini membuktikan bahwa kecepatan aliran berbanding lurus dengan nilai kehilangan energi. Pada percobaan pipa kasar semakin besar nilai kecepatan aliran (0,875 m/s –2,548 m/s) dalam pipa, maka nilai kehilangan energi (0,096 – 0,808) juga akan semakin besar. Ini membuktikan bahwa kecepatan aliran berbanding lurus dengan nilai kehilangan energi. Bedanya dengan percobaan pada pipa halus adalah kecepatannya lebih besar, ini diakibarkan karena penampang bagian dalam pipa memiliki permukaan yang lebih halus dan memiliki luas penampang yang lebih kecil dibandingkan dengan pipa kasar, dan kecepatan aliran pada pipa kasar rendah diakibatkan adanya gesekan dengan permukaan pipa yang kasar. Perbandingan menggunakan metode manual dengan menggunakan aplikasi Watercad V8i dari nilai regresi data manual dan data aplikasi (0,787 – 0,975), hasil perhitungan menggunakan aplikasi Watercad V8i; nilai kecepatan dan kehilangan energi yang diperoleh mendekati / memiliki hubungan langsung positip baik dengan nilai kecepatan dan kehilagan energi yang diperoleh dengan menggunakan metode manual.Kata Kunci: Kehilangan Energi, Jaringan Pipa, Watercad V8i Piping system serves to drain liquid from one place to another. Flow occurs due to the high difference in pressure in the second place, that usually happens because of differences in water level or by the use of pumps. Fluid flow in the pipe experience a loss of energy along the length of pipe that passed, which caused the pipe roughness, length of pipe, pipe diameter, and type of fluid.In this study, two experiments, the experiment using a manometer manually in the laboratory with a wide variety of diameters and types of pipe is smooth pipes and plumbing rough and experiments using V8i WaterCad applications.At the trial the greater smooth pipe flow velocity value (0.792 m / s - 3,740 m / s) in the pipeline, then the value of the energy loss (0.028 to 4.813) will also increase. This proves that the flow velocity is proportional to the rate of energy loss. At the trial the greater rough pipe flow velocity value (0.875 m / s -2.548 m / s) in the pipeline, then the value of the energy loss (0.096 to 0.808) will also increase. This proves that the flow velocity is proportional to the rate of energy loss. The difference with experiments on smooth pipe is greater speed, this diakibarkan because the cross section of the inner tube has a smoother surface and has a smaller cross-sectional area compared to the rough plumbing and rough pipe flow velocity at low due to friction with the rough surface of the pipe .Comparison using the manual method using Watercad V8i application of regression value of manual data and application data (0.787 to 0.975), the results of calculations using Watercad V8i application; the value of speed and energy loss obtained approaching / have a direct positive relationship both with speed and kehilagan energy value obtained using the manual method.Keywords: Loss of Energy, Pipeline, Watercad V8i
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Djulia, Ely, Martina Restuati, Roma Sihotang, Rosinta L. P. Sianturi, Mona M. Hutagaol, and Jihan Syabrina. "Junior High School Student’s Literacy of Science Concept: Electricity & Heredity." Journal of Education, Teaching and Social Studies 4, no. 1 (March 8, 2022): p63. http://dx.doi.org/10.22158/jetss.v4n1p63.
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High Order Thinking Skills (HOTs) is the way of thinking which should have been mastered by students everywhere early for their life skills. This HOTs skill has been internationally assessed since 2000 every three years attended by all OECD members includes Indonesia through Program International for Student Assessment (PISA). Result of PISA of Indonesian students from 2000 until 2018 still have achieved at level 1a of highest level 6 as national average. Considering geographical area located from West to East, it is very important to map students literacy in each area as base-line of creating integrated effort for Junior High School to increase student’s literacy. This descriptive study aims to promote the profile of Junior High School Literacy. About 40 of 9-grade students and two science teachers involved in this study as research subject. Data were obtained through participative observation, test and video typing for classroom activity during two months on the topic of heredity and electricity. Data were analyzed quantitatively and qualitatively as well. Result showed that students literacy still in low category based on national competence assessment. However there is increase of learning outcome proven by pretest (24.46), post test (33.46), and second post test (59.82). Looking into class level in detail based on daily assessment on the topic of electricity and heredity percentage of students literacy can be categorized as scientific comprehension (57%), higher than partial comprehension (19%) and naïve or wrong comprehension (24%). Student scientific comprehension promoted close to PISA literacy competencies includes explaining phenomena scientifically, evaluating and designing scientific enquiry, interpreting data and evidence scientifically. The study imply the important of keep improving daily science classroom activity which promote students higher order thinking skills in order to achieve better scientific literacy.
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Pereira, João Batista. "Notas sobre os documentos oficiais e o ensino de literatura na educação básica no Brasil." Revista Graphos 22, no. 2 (October 15, 2020): 67–78. http://dx.doi.org/10.22478/ufpb.1516-1536.2020v22n2.52533.
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Este artigo visa a refletir sobre como o ensino de literatura na educação básica foi instituído nas leis brasileiras. Dependente das influências eclesiásticas no século XIX e diluído nos conteúdos de língua portuguesa na Lei de Diretrizes e Bases da Educação Nacional e nos Parâmetros Curriculares Nacionais, o texto literário ganharia visibilidade nas Orientações Curriculares para o Ensino Médio, conjunto de documentos cujos preceitos repercutiram de forma limitada na formação leitora dos alunos. Programas como o PIBID, o PET e a Residência Pedagógica foram iniciativas para mudar esse quadro, sem que tenham obtido avanços relevantes nessa competência, como atestam os resultados de exames como o PISA, Prova Brasil e SAEB.
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Wagh, Sameer. "Pika: Secure Computation using Function Secret Sharing over Rings." Proceedings on Privacy Enhancing Technologies 2022, no. 4 (October 2022): 351–77. http://dx.doi.org/10.56553/popets-2022-0113.
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Machine learning algorithms crucially depend on non-linear mathematical functions such as division (for normalization), exponentiation (for softmax and sigmoid), tanh (as an activation function), logarithm (for crossentropy loss), and square root (for back-propagation of normalization layers). However, when machine learning is performed over secure computation, these protocols incur a large communication overhead and high round complexity. In this work, we propose new multi-party computation (MPC) protocols for such functions. Our protocols achieve constant round complexity (3 for semi-honest, 4 for malicious), an order of magnitude lower communication (54 − 121× lower than prior art), and high concrete efficiency (2−1163× faster runtime). We rely on recent advances in function secret sharing (FSS) to construct these protocols. Our contributions can be summarized as follows: (1) A constant round protocol to securely evaluate nonlinear functions such as division, exponentiation, logarithm, and tanh (in comparison to prior art which uses round complexity proportional to the rounds of iterative methods/required precision) with high accuracy. This construction largely follows prior work in look-up style secure computation. (2) Our main contribution is the extension of the above protocol to be secure in the presence of malicious adversaries in the honest majority setting. We provide a malicious sketching protocol for FSS schemes that works over rings and in order to prove its security, we extend (and prove) a corresponding form of SchwartzZippel lemma over rings. This is the first such extension of the lemma and it can be of independent interest in other domains of secure computation. (3) We implement our protocol and showcase order of magnitude improvements in runtime and communication. Given the low round complexity and substantially lower communication, our protocols achieve even better performance over network constrained environments such as WAN. Finally, we showcase how such functions can lead to scalability in machine learning. Note that techniques presented are applicable beyond the application of machine learning as the protocols effectively present an efficient 1-out-of-N oblivious transfer or an efficient private information retrieval protocol.
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Atsnan, Muh Fajaruddin, Rahmita Yuliana Gazali, and Maisea Ledua Nareki. "Pengaruh pendekatan problem solving terhadap kemampuan representasi dan literasi matematis siswa." Jurnal Riset Pendidikan Matematika 5, no. 2 (November 22, 2018): 135–46. http://dx.doi.org/10.21831/jrpm.v5i2.20120.
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Pada konteks penilaian berskala internasional seperti PISA, kompetensi pemecahan masalah dalam bidang matematika dan sains terkait permasalahan nyata merupakan fokus pengembangan kompetensi representasi dan literasi matematis siswa. Mengingat pentingnya pemecahan masalah, kemampuan representasi dan literasi matematis, maka penelitian ini bertujuan untuk mengetahui pengaruh pendekatan problem solving terhadap kemampuan representasi dan literasi matematis siswa SMP. Metode yang digunakan pada penelitian ini adalah metode eksperimen kuasi (quasi experimental), dengan desain penelitian yang digunakan adalah Randomized Posttest-Only Control Group Design, yakni dua kelas yang telah dipilih secara acak, selanjutnya diberikan perlakukan yang diakhiri dengan tes kemampuan representasi dan literasi matematis pada kedua kelas tersebut. Berdasarkan hasil kajian dan analisis data dengan bantuan SPSS 24, maka dapat disimpulkan bahwa pembelajaran matematika dengan pendekatan problem solving berpengaruh terhadap kemampuan representasi dan literasi matematis siswa SMP, khususnya di kelas VIII SMP Negeri Banjarmasin. Terlihat jelas perbedaan cara menyelesaikan masalah yang diujikan kepada siswa kelas eksperimen dan kelas kontrol. Melalui pendekatan problem solving, terbukti dapat menjadikan siswa terbiasa ketika menjumpai soal-soal pemecahan masalah selevel PISA atau TIMSS.The effect of problem solving approach to the ability mathematic representation and literature students AbstractIn the context of international scale assessment such as PISA, problem-solving competence in the field of mathematics and science related to real problems is the focus of developing students' mathematical representation competence and literacy. Given the importance of problem solving, the ability of representation and mathematical literacy, this study aims to determine the effect of problem solving approach on the ability of representation and mathematical literacy of junior high school students. The method used in this research is quasi experimental method, with the research design used is Randomized Posttest-Only Control Group Design, ie two classes that have been chosen randomly, then given treatment which ends with the test of representation ability and mathematical literacy in both classes. Based on the results of study and data analysis with the help of SPSS 24, it can be concluded that mathematics learning with problem solving approach affects the ability of representation and mathematical literacy of junior high school students, especially in class VIII SMP Negeri Banjarmasin. There is a clear difference in how to solve the problems tested to the experiment class and control class students. Through the problem solving approach, it is proven to make the students accustomed when encountering problem solving problems at PISA or TIMSS level.
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Rutkowski, Leslie, and Yan Zhou. "The Impact of Missing and Error-Prone Auxiliary Information on Sparse-Matrix Sub-Population Parameter Estimates." Methodology 11, no. 3 (October 2015): 89–99. http://dx.doi.org/10.1027/1614-2241/a000095.
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Abstract. Given a consistent interest in comparing achievement across sub-populations in international assessments such as TIMSS, PIRLS, and PISA, it is critical that sub-population achievement is estimated reliably and with sufficient precision. As such, we systematically examine the limitations to current estimation methods used by these programs. Using a simulation study along with empirical results from the 2007 cycle of TIMSS, we show that a combination of missing and misclassified data in the conditioning model induces biases in sub-population achievement estimates, the magnitude and degree to which can be readily explained by data quality. Importantly, estimated biases in sub-population achievement are limited to the conditioning variable with poor-quality data while other sub-population achievement estimates are unaffected. Findings are generally in line with theory on missing and error-prone covariates. The current research adds to a small body of literature that has noted some of the limitations to sub-population estimation.
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Lopes Assis, Lidia Maria, Roberto Antonio Deitos, and Margarete Chimiloski Dolla. "A QUALIDADE DA EDUCAÇÃO VERSUS RESULTADOS DAS AVALIAÇÕES EM LARGA ESCALA: UMA BREVE REFLEXÃO." Educere et Educare 15, no. 35 (June 1, 2020): 10. http://dx.doi.org/10.17648/educare.v15i35.23912.
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Neste artigo, busca-se contextualizar as atuais políticas educacionais no estado do Paraná, referentes à avaliação em larga escala, trazendo para a reflexão o seu recrudescimento nos últimos anos, principalmente, no ano de 2019, com a implantação de uma nova prova, denominada Prova Paraná. Objetivando demonstrar o alinhamento do estado do Paraná às políticas de resultados, em âmbito internacional e nacional, foi realizada a abordagem do PISA, avaliação internacional, e do SAEB, avaliação nacional. A revisão bibliográfica aponta que a estandardização dos resultados do desempenho dos discentes, principalmente representado pelo Índice de Desenvolvimento da Educação Básica, IDEB, intenciona relacionar a qualidade educacional a esses resultados. Para confirmar os dados referentes à revisão bibliográfica, foi utilizada, como referência, pesquisa realizada por amostragem no município de Cascavel, em escolas públicas das redes municipais e estaduais, no ano de 2017. Os resultados da pesquisa evidenciam o acirramento da implementação de ações relativas à avaliação em larga escala e também da linearidade a uma política liberal de ênfase aos resultados.
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Katagiri, Takamasa, Ryo Tominaga, Keisuke Kataoka, Akio Maeda, Hiroshi Gomyo, Ishikazu Mizuno, Tohru Murayama, Seishi Ogawa, and Shinji Nakao. "A Cure for Paroxysmal Nocturnal Hemoglobinuria Using Molecular Targeted Therapy Specific to a Driver Mutation." Blood 126, no. 23 (December 3, 2015): 1215. http://dx.doi.org/10.1182/blood.v126.23.1215.1215.
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Abstract Background: The clonal expansion of PIGA mutant hematopoietic stem cells (HSCs) can be induced by secondary driver mutations in genes such as HMGA2 and JAK2 in some patients with paroxysmal nocturnal hemoglobinuria (PNH). Theoretically, this type of PNH may be cured by molecular targeted therapy if the therapy is specific for the driver mutations and can eliminate PIGA mutant HSCs that acquired a proliferative advantage. However, this theory has not been proven because of the lack of an appropriate targeted therapy for known driver mutations responsible for clonal expansion of PIGA mutant HSCs. We recently treated a case of PNH complicated by chronic myeloid leukemia (CML) with nilotinib and observed a complete molecular response of CML followed by a complete disappearance of glycosylphosphatidylinositol-anchored protein-deficient (GPI-AP-, PNH-type) cells after 19 months of treatment. Case report: The patient, a 27-year-old Japanese woman, developed severe anemia with leukocytosis and thrombocytosis in 2013. The laboratory findings on admission were as follows: white blood cell count of 18.7x109/L with 1.7% stab neutrophils, 5.4% segmented neutrophils, 9.3% basophils, 1.3% promyelocytes, 5.0% myelocytes, 3.0% metamyelocytes, 18.0% lymphocytes and 0.7% blasts; hemoglobin (Hb)=6.0 g/dL, platelets=1,000x109/L, 20.0% reticulocytes, total/direct bilirubin=1.9/0.3 mg/dL, LDH=1963 IU/L and haptoglobin <10 mg/dL. A high-sensitivity flow cytometry analysis of the patient's peripheral blood at diagnosis revealed that 99.2% of granulocytes, 75.7% of erythrocytes and 99.3% of monocytes were GPI-AP-, while no T cells, B cells or NK cells had the PNH-phenotype (Figure 1A). This GPI-AP- cell distribution pattern was in sharp contrast to that of a patient with typical PNH who showed various percentages of GPI-AP- cells in all lineages of leukocytes and erythrocytes (Figure 1B). A fluorescent in situ hybridization analysis showed that 98.0% of the patient's granulocytes were BCR-ABL gene-fusion positive. Deep sequencing of leukocytes obtained at diagnosis showed a G279T (Q93H) mutation in exon 4 of the PIGA gene. The patient was diagnosed with PNH complicated by CML in the chronic phase, and was treated with nilotinib at 400 mg/day. The percentage of GPI-AP- cells rapidly decreased in response to nilotinib, with 0.02% GPI-AP- granulocytes after six months of nilotinib therapy when the patient's BCR-ABL mRNA decreased to 0.007%. BCR-ABL mRNA decreased to less than 0.0035% 15 months after therapy; however, small populations of GPI-AP- granulocytes (0.01%) and erythrocytes (0.005%) were still detected at this time (Figure 1A). GPI-AP- cells became undetectable after 19 months of nilotinib therapy, suggesting that the BCR/ABL fusion occurred in a subclone of a PIGA mutant hematopoietic progenitor cell (HPC). The patient was continuing nilotinib as of August 2015 without any signs of an increase in the BCR-ABL mRNA copy number. Conclusions: This case indicates the BCR-ABL fusion can be a driver mutation capable of inducing the clonal expansion of PIGA mutant clones. More importantly, the origin of PNH in our case proved to be a minor HPC clone with a PIGA mutation, suggesting that PNH can be derived from an HPC with a limited life span only if a potent second hit occurs in the PIGA mutant HPC. The identification of driver mutations in patients with PNH may therefore lead to the development of targeted therapy capable of curing PNH. Disclosures No relevant conflicts of interest to declare.
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SARAGIOTTO COLPINI, LEDA MARIA, LUIZ EDUARDO NOCHI DE CASTRO, NATHALIA DA CRUZ DUR�ES, WILLIAM FRANCO CARNEIRO, ALDO TOVO NETO, and F�BIO MEURER. "VALOR NUTRICIONAL DO FIL� E CARCA�A DE TIL�PIAS DO NILO ALIMENTADAS COM RA��ES CONTENDO VALORES DIVERSOS DE PROTE�NA E ENERGIA DIGEST�VEL." Revista Brasileira de Engenharia de Pesca 10, no. 2 (December 26, 2017): 41. http://dx.doi.org/10.18817/repesca.v10i2.1345.
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Este trabalho teve como objetivo avaliar a composi��o qu�mica corporal e do fil� da til�pia do Nilo adulta, alimentadas com ra��es com cinco n�veis de prote�na digest�vel (PD): 14, 19, 24, 29 e 34% e quatro de energia digest�vel (ED): 2.600, 2.800, 3.000 e 3.200 Kcal/ kg-1. Foram distribu�das 60 til�pias do Nilo, revertidas sexualmente, em 20 unidades experimentais de polietileno com 1.000 L de volume �til cada. Os animais foram alimentados �s 8h, 13h e 18h de cada dia, a temperatura e o oxig�nio avaliados diariamente e as demais vari�veis semanalmente. Ao final de 60 dias de experimento os peixes foram abatidos e avaliados a composi��o qu�mica (umidade, cinzas, prote�na e gordura bruta) corporal e do fil� dos peixes. Os resultados m�dios das an�lises bromatol�gicas do fil� de til�pia do Nilo foram: umidade 75,14%, cinzas 1,19%, prote�na bruta 24,80% e gordura bruta 0,78%. Quanto aos resultados m�dios obtidos da an�lise corporal da til�pia do Nilo, umidade 68,74 %, cinzas 3,96%, prote�na bruta 17,71% e gordura bruta 5,54%. Os dados foram analisados estatisticamente por two way ANOVA (p<0,05) e foi verificado um efeito significativo do n�vel de energia digest�vel sobre a prote�na do fil�, onde o menor n�vel energ�tico promoveu fil�s com menor prote�na que os demais n�veis, os quais foram significativamente semelhantes entre si. Ra��es com baixo n�vel de energia digest�vel independentemente do n�vel de prote�na digest�vel proporcionam fil�s com menor concentra��o de prote�na em til�pias do Nilo adultas.