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Search Results: 1 - 10 of 178417 matches for " Amelia ESCUDERO DE FONSECA "
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LOS MICROORGANISMOS EN LOS ABONOS ORGáNICOS A PARTIR DE PODAS EN LA UNIVERSIDAD DEL NORTE, COLOMBIA
Amelia ESCUDERO DE FONSECA,Carmen Alicia ARIAS VILLAMIZAR
Revista internacional de contaminación ambiental , 2012,
Abstract: El compostaje es un proceso biológico aerobio exotérmico en el que los microorganismos descomponen biológicamente y mineralizan un sustrato orgánico logrando un producto final estable, libre de patógenos y de semillas que puede ser aplicado al suelo de forma beneficiosa. Desde 2009, en la Universidad del Norte ubicada en Barranquilla, Colombia, se ensaya el método Indore de compostaje pero modificado –sólo se usan residuos vegetales y la aireación es pasiva– buscando reducir olores y controles operativos y hacerlo atractivo en la producción artesanal de abono. En las experiencias se han variado las condiciones de entrada de la composta obteniendo abono tipo A según la norma control chilena 2880 de 2004. La investigación aquí rese ada corresponde a niveles alto y bajo en la relación carbono/nitrógeno (C/N) y a inocular o no microorganismos nativos (Aspergillus niger y Streptomyces sp.), buscando acelerar el proceso. Las respuestas de los microorganismos termófilos y mesófilos participantes, concordaron con los materiales de la composta, la relación C/N, la evolución de las variables fisicoquímicas por cuenta de los microorganismos y la aireación involucrada. La calidad del abono indica que los microorganismos cuentan con los nutrientes requeridos (presentes en los residuos vegetales utilizados) y que el sistema desarrolla una cinética bioxidativa suficiente y similar a la obtenida en otros procesos que adicionan residuos animales y aireación forzada.
Seqüência de estímulos durante o fortalecimento da resposta de bicar: efeitos sobre a aquisi??o de desempenhos em matching e oddity
Damiani, Katia;Passos, Maria de Lourdes Rodrigues da Fonseca;Matos, Maria Amelia;
Psicologia: Reflex?o e Crítica , 2002, DOI: 10.1590/S0102-79722002000300002
Abstract: this study was aimed to investigate the question why oddity-from-sample acquisition in animals always start at above chance level. a question was raised concerning the role of stimuli sequences and a possible bias introduced in responding. thus, this study analyzed the effects of stimuli sequencing during response build up in the pigeon (pre-training) upon the acquisition of identity matching (imts) and oddity-from-sample (ofs) with three color stimuli and two comparisons. during pre-training one color was presented at the time in any one of three response key. color presentation was randomized but for the restriction that the probability of two like colors being presented consecutively was the same as the probability of two non-like colors being presented consecutively. this controlled for any sequencing bias effects upon responding. following, subjects were submitted either to imts or to ofs training. results replicated those of the literature, indicating that stimuli sequencing control during pre-training has no effect upon matching and oddity acquisition.
Seqüência de estímulos durante o fortalecimento da resposta de bicar: efeitos sobre a aquisi o de desempenhos em matching e oddity
Damiani Katia,Passos Maria de Lourdes Rodrigues da Fonseca,Matos Maria Amelia
Psicologia: Reflex?o e Crítica , 2002,
Abstract: Este estudo investigou o efeito da seqüência de apresenta o de estímulos durante o fortalecimento da resposta (pré-treino) de bicar em pombos, sobre a aquisi o do matching de identidade (IMTS) e oddity-from-sample (OFS) com 3 cores como estímulos e 2 escolhas. O problema se remete à disparidade no desempenho inicial em OFS em rela o aos níveis do acaso, reiteradamente relatado na literatura. Durante o pré-treino, apenas uma cor era apresentada em qualquer uma de 3 chaves de resposta. O sorteio da seqüência de estímulos nas tentativas foi realizado com a restri o de que a probabilidade de 2 estímulos iguais serem apresentados em tentativas consecutivas foi semelhante à probabilidade de 2 estímulos diferentes serem apresentados em tentativas consecutivas. Em seguida, os sujeitos foram submetidos ou ao treino IMTS ou ao OFS. Os resultados replicaram aqueles descritos na literatura, indicando que o controle realizado sobre a seqüência de tentativas no pré-treino n o teve efeito sobre a aquisi o do IMTS e OFS.
Los diarios en la Biblioteca Pública de la Universidad Nacional De La Plata
Aguado de Costa,Amelia;
Informaci?3n, cultura y sociedad , 2007,
Abstract: the efforts of the public library of the universidad nacional de la plata to build a significant collection of newspapers of historical interest, published in our country and other latin american nations, are analyzed. it is stressed that that interest is permanent, with the acquisition and preservation of newspapers of national and local circulation, and with newspapers microfilming programs. a list of newspapers of historical interest, published before 1861, is included.
Los diarios en la Biblioteca Pública de la Universidad Nacional De La Plata Newspapers in the Public Library of the Universidad Nacional de La Plata
Amelia Aguado de Costa
Información, Cultura y Sociedad , 2007,
Abstract: Se analizan las actividades de la Biblioteca Pública de la Universidad Nacional de La Plata tendientes a constituir un fondo significativo de diarios de interés histórico, publicados en nuestro país y en otras naciones latinoamericanas. Se se ala que ese interés se mantuvo en forma permanente, con la adquisición y la preservación de diarios de circulación nacional y local, y con programas de microfilmación de periódicos. Se incluye un listado de existencias de periódicos de interés histórico anteriores a 1861. The efforts of the Public Library of the Universidad Nacional de La Plata to build a significant collection of newspapers of historical interest, published in our country and other Latin American nations, are analyzed. It is stressed that that interest is permanent, with the acquisition and preservation of newspapers of national and local circulation, and with newspapers microfilming programs. A list of newspapers of historical interest, published before 1861, is included.
Editorial: Ciencia y pseudociencia en salud mental: el síndrome de alienación parental (SAP). La apariencia científica como justificación para su uso en litigios por la custodia de los hijos. Manuel Desviat y la contrarreforma psiquiátrica.
Antonio Escudero Nafs,- Consejo de Redacción
Revista de la Asociación Espa?ola de Neuropsiquiatría , 2008,
Abstract: Sin resumen.
Problem solving at secondary school level: a cognitive and social change
Consuelo Escudero,Sonia González de Flores
Investiga??es em Ensino de Ciências , 1996,
Abstract: This paper reports our first studies on problem solving at secondary school level, with low performance students, under the framework of the integration of two meanings of the constructivist conception: a) the construction of meaning and content’s role, and b) the integration of individual and social aspects. In classroom problem solving in 3rd year (15 years old) just very elementary signs of operationalism were observed; the use of formulae appeared only when students had a certain level of content mastery. The limited meaning students assign to the equality sign and its symbolical representation constitutes another important nucleus of difficulty detected in this research. This analysis and its interpretation are used for some educational suggestions.
Laser evoked potential: Analysis of the methodology in post herpetic neuralgia  [PDF]
Alessandro Caminiti, Amelia Zaccaro, Andrea Truini, William Raffaeli, Domenico De Grandis
World Journal of Neuroscience (WJNS) , 2012, DOI: 10.4236/wjns.2012.21001
Abstract: Background: selective activation and the contempo- rary recording of A delta and C fibers from Yap laser on the scalp is a new neurophysiological assessment, allowing the selective activation of the nociceptive system. Objectives: to evaluate if the damage of the nociceptive system was related to post herptic nevral-gia (PHN) development in a sample of 26 patients affected by Herpes zooster (HZ); secondly to assess if the impairment of thermal pathway and PHN development were related. Methods: Thirty-two patients were selected for the study, 26 of these were included in the study, whereas 6 were excluded because of cog- nitive impairment. All 26 study patients were sub- mitted to LEP analysis at baseline (T0) and after six months (T1), and the correlation between clinical thermal disease and the development of PHN was monitored. Results: pain duration was evidenced by the presence or absence of an instrumental signal in patients with acute HZ infection. There was total concordance between the absence of LEP signal and pain duration. The concordance between the clinical thermal disease and the pain duration was statisti- cally significant for 43% of the sample. Conclusions: our results suggested a possible role of LEP for PHN prognosis estimation; indeed, most patients affected by acute HZ, with absence of instrumental LEP signal had pain > 6 months. We also noted a significant (43% of cases) clinical concordance between the thermal pathway damage, the absence of instrumental signal and PHN development. Further studies are needed to address this issue.
Aplikasi Metode Group Technology dalam Memperbaiki Tata Letak Mesin untuk Meminimalkan Jarak Perpindahan Bahan (Studi Kasus di Perusahaan Mebel Logam)
Amelia Amelia
Jurnal Teknik Mesin , 2007,
Abstract: Material handling process is affected by planning and setting layout facility since cost of material handling can reached 30-90% total production cost. In a metal furniture factory products were made without good setting layout facility. The machines and material were set at empty places. Distances between machines were not set so the traffic would get traffic jam. Unfinished material must wait until the number requirement for handling is reached. The layout setting of machines will be set with Group Technology. The methods used are Rank Order Clustering, Similarity Coefficient and p-median. The result of this method can reduce distance of material handling until 68%. Abstract in Bahasa Indonesia: Perencanaan dan pengaturan tata letak pabrik berpengaruh pada proses pemindahan bahan karena biaya proses pemindahaan bahan dapat mencapai 30%-90% dari total biaya produksi. Selama ini sebuah perusahaan mebel logam melakukan proses pembuatan mebel logam berdasarkan lokasi mesin-mesin yang ada. Penempatan penambahan mesin ataupun bahan yang digunakan hanya berdasarkan ruang yang ada. Jarak antara proses (mesin) satu dengan yang lain tidak dipertimbangkan sehingga terjadi kesimpangsiuran proses. Bahan setengah jadi harus menunggu hingga jumlah tertentu untuk dipindahkan. Untuk itu dilakukan pengaturan tata letak mesin-mesin yang ada dengan menggunakan Metode Group Techonology. Metode yang digunakan adalah metode Rank Order Clustering, Similarity Coefficient dan p-median. Dengan metode ini jarak perpindahan bahan berhasil dikurangi hingga 68 %. Kata kunci: Group technology, rank order clustering, pengangkutan material.
Estimando a Elasticidade do Efeito da Assiduidade às Aulas no Mérito Académico consoante a Classe Social no Ensino Superior Português
Maria de Lurdes Fonseca
Revista da Faculdade de Letras : Sociologia , 2011,
Abstract:
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