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Effect of Final Batch Size Heterogeneity of Clarias gariepinus reared in Concrete Tanks on Sales
Get PDFAn evaluation of sizes at harvest following commercial production of Clarias gariepinus in 12 m3 capacity indoor concrete tanks was conducted. Initial mean weight, standard length and total length of the fish averaged 8.21±0.65 g, 9.51±0.20 cm and 10.82±0.27 cm (mean±SEM) respectively. The culture period was fifteen weeks with the fish attaining various sizes ranging from 151.54 g to 1 kg. Results indicated that the three size classes (large, medium and small) generated mid culture exhibited varying survival rates and wide coefficient of variation thereby impacting sales
Los Caciques. Una reflexión sobre los eventos de congregación social del complejo cultural El Vergel en el curso medio del río Cautín. Sur de Chile
Get PDFThe following article presents the site Los Caciques, a site ascribable to El Vergel cultural complex (1000-1500 A.D.) originally located on the top of the Conun Huenu hill in the commune of Padre Las Casas, Southern Chile. The ceramic assemblage of the site is described through the identification of vessel categories, their attributes, and proportions. A characterization of reche-mapuche feasts is made through documentary sources; this considering the direct historical relationship between El Vergel and reche-mapuche populations. On the basis of both lines of evidence, Los Caciques is proposed as a site of social congregation.En el presente artículo se da a conocer el sitio Los Caciques, un sitio adscribible al complejo cultural El Vergel (1000-1500 d.C) originalmente ubicado en la cima del cerro Conun Huenu en la comuna de Padre Las Casas, Sur de Chile. Se describe el conjunto cerámico del sitio a través de la identificación de categorías de vasijas, sus atributos y proporciones con que se presentan. Se realiza una caracterización de festines reche-mapuche a través de fuentes documentales; esto considerando la relación histórica directa entre poblaciones El Vergel y reche-mapuche. A partir de ambas líneas de evidencia, se propone a Los Caciques como un sitio de congregación social
Una historia de idas y vueltas: los cambios en el rol del Estado y la fragmentación institucional en la educación parvularia en Chile (1960-2020)
Get PDFDuring the last decades, early childhood education in Chile hasbeen marked by back-and forth policymaking- between the fragmentation of the system and the attempts to regulate and standardize it. This has gainedmstrength in recent years, from the creation of the “Quality Assurance System” and of the Under secretariat and Intendancy of Early Childhood Education. This article seeks to understand the way in which early childhood education institutionality, the state, and public policies have been configured and transformedbetween the years 1960 and 2020. The study was based on documentaryanalysis (over 200), complemented with nine interviews of actors whohave participated in the design or execution of these public policies during the last decades. The results of the study show the existence of four historical phases in which there is a permanent back and forth between the regulation and deregulation of the still fragmented early childhood education system.Las últimas décadas de la educación parvularia en Chile ha estado marcada por un ir y venir entre la fragmentación y los intentos de articulación, regulación y estandarización del sistema. Esto ha tomado fuerza en los últimos años, a partir de la incorporación del nivel en el “Sistema de Aseguramiento para la Calidad” y la creación de la Subsecretaría e Intendencia de Educación Parvularia. El presente artículo busca comprender el modo en que se ha configurado la institucionalidad del nivel y cuál ha sido el rol del Estado en ello, mediante un análisis de las políticas públicas en educación parvularia entre los años 1960 y 2020. El estudio se realizó a partir de un análisis documental (sobre 200 documentos), complementado con entrevistas a catorce actores que participaron en el diseño y/o ejecución de la política pública en el nivel en las últimas décadas. Los resultados de este estudio evidencian la existencia de cuatro fases en las que se constata un permanente vaivén entre la regulación y desregulación del aún fragmentado sistema de educación parvularia
Aislamiento, identificación, productividad enzimática y actividad antibacteriana de bacterias intestinales de Blue morph Maylandia lombardoi y su papel en el crecimiento
Get PDF Four distinct colonies were isolated from the intestine of Blue morph (Maylandia lombardoi) through serial dilution, pour plate, spread plate and streak plate method. The isolated colonies were identified by using biochemical and enzyme (Amylase, Cellulase, Lipase and Protease) productivity tests. The isolated bacteria such as Bacillus sp., (BM1), Enterobacter sp., (BM 2), Escherichia sp., (BM3) and Pseudomonas sp., (BM4) were mass multiplied in nutrient broth. Antibacterial activity of intestinal bacteria of Blue morph was carried out with the help of selective media along with commercial antibiotic Ampicillin. Based on higher enzyme productivity and antibacterial activity two bacteria were sequenced and the identified as BMI(Lactobacillus casei) and BM2 (Lactobacillus acidophilus).Five different feeds having different concentration of bacteria such as Feed I (Control)(without bacteria), Feed II (1ml of Lactobacillus casei ), Feed III (1ml each of Lactobacillus casei and Lactobacillus acidophilus ), Feed IV(1 ml each of Lactobacillus casei, Lactobacillus acidophilus Bacillus sp., and Escherichia sp.,) and Feed V (1ml each of Lactobacillus casei, Lactobacillus acidophilus Escherichia sp., and Pseudomonas sp.,)were prepared by using fish meal, groundnut oil cake, wheat flour and tapioca flour. Feed utilization parameters of Blue morph were estimated after a period of 21 days. Based on the antibacterial test the Lactobacillus acidophilus (BM2) has higher inhibition. The feed consumption, feed conversion ratio, feed conversion efficiency, growth, percentage growth, relative growth rate, assimilation, metabolism, gross growth efficiency, and net growth efficiency was higher in feed IV
El “otro”: identidad y construcción discursiva
Get PDFEsta contribución, que arraiga en la Epistemología del Sujeto Conocido, tiene por objetivodar cuenta de las características que asumen textualmente las representaciones discursivas acerca del “otro”. De modo tal, luego de la propuesta de tres niveles de reflexión se analizarán, por un lado, las diferentes concepciones que sustentan a esas representaciones y las posibles consecuencias de esas formas de representación, en especial sobre la identidad personal y colectiva y sobre la capacidad de acción histórica de las personas pobres. Por otro lado, se examinará la relación entre las particularidades de dicha representación y las posibles formas de ser de la violencia
Autonomía Indígena y Justicia para Mujeres Indígenas Latinoamericanas
Get PDFMy paper deals with indigenous peoples’ rights, focusing on Latin American case-law related to gender issues. Latin American Courts have faced cases related to sexual crimes or domestic violence among indigenous people and have to choose between giving pre-eminence to women’s rights or indigenous autonomy. On deciding those cases, the tools provided by the proportionality test are paramount in order to analyse the case-law. The indigenous rights regimes (ILO-169, UNDRIP) may prevail or not against other human rights systems (which specially protect women or children) according to the facts of the case, but also according to domestic legal cultures modelled by the country’s historical evolution.Este trabajo analiza los derechos de los pueblos indígenas, centrándose en la jurisprudencia latinoamericana relacionada con cuestiones de género. Los tribunales latinoamericanos han enfrentado casos relacionados con crímenes sexuales o violencia intra-familiar entre indígenas y tienen que decidir entre dar preeminencia a los derechos de las mujeres o la autonomía indígena. Al resolver estos casos, las herramientas proporcionadas por el test de proporcionalidad son esenciales para analizar la jurisprudencia. Los regímenes de derechos indígenas (ILO-169, UNDRIP) pueden prevalecer o no contra otros sistemas de derechos humanos (que protegen especialmente a las mujeres o los niños) de acuerdo con los hechos del caso, pero también de acuerdo con la cultura jurídica modeladas por la diversa evolución histórica de cada país
Vitalidad Etnolingüística de la Lengua Araucana
No full textEn el largo proceso histórico vivido por el o los pueblos araucanos quizás el rasgo cultural más persistente haya sido y sea su lengua. Un examen de la primera gramática escrita para ella por el jesuita Luis de Valdivia en 1606, hace 377 años, muestra en realidad muy poca diferencia con el idioma que aún hablan en determinadas situaciones sociales los mapuches contemporáneos a lo largo y ancho del territorio que ocupan
Exploring Floral Waste into Bio-compost using Microbial Consortium from cow dung: A Review
Get PDFIndia being a cultural nation with pilgrimage and deities activities as well an arena of myriad social and cultural functional events, leads to floral waste generation as a natural inevitable outcome with a very slow degradation. A huge amounts of flower waste followed by temple offerings, released daily in the water bodies or as dumping off in soil. This leads to a severe environmental pollution and health hazards. Degraded floral waste residues serve to be a cheap & flexible source of choice for bio compost. Presence of a diverse group of microorganisms isolated from rich nutritional source as cow dung helps in an efficient degradation of highly complex organic components into simple stable end product, Bio-Compost Therefore in the present work, an attempt was made, to discuss on an efficient degradation process of floral waste by cow dung driven microbial isolates. 
Effect of sintering and coldbonding techniques onlightweight aggregates fromindustrial waste – a review
Get PDFConcrete is a building material which consist major portion of hard inorganic materials called aggregates such as crushed stone aggregate. Due to continuous usage of natural resources within a short length of time these get depleted. Production of concreteby using waste materials from industries is important in this era. The production of light weight aggregate from waste material is done by pellatization and hardened by sintering or cold bonding techniques. Depending upon the hardening methods the properties of concrete is also varied. From previous research works it can be concluded that it is possible to produce structural concrete using sintered fly ash aggregate which are spherical in shape having specific gravity varying from 1.33 to 2.35. According to the literature, the specific gravity of these aggregates was 16 to 46 percent lower than that of standard of weight aggregates, and they might be employed as aggregates in structural concrete production depending on the constituent qualities and the production environment. Cold bonded aggregate concretewith compressive strength 48% lesser compared to normal concrete mix, it exceeds the value of 17 MPa that has been fixed as minimum criteria for concrete to be used as a structural material. This paper mainly focuses on review of artificial light weight aggregate from cold bonding and sintering methods and how these methods affect the concrete properties. From different studies, it is concluded that Cold bonding is an energy saving method and Sintered sludge pellets have a stronger aggregate strength, larger porosity, and lower aggregate density than cold bonded aggregates, exhibiting qualities that are superior to those required of building aggregates. Sustainable development is indeed achievable in this developing era and lightweight aggregate in construction sector is key to achieve this
Solitary, irregular and focused wave impact on coastal bridge deck for different airgaps.
Get PDFCoastal bridge decks are subjected to wave impact due to the action of extreme wave events like tsunami and storm surges. These events are more frequent in recent years and cause deck upliftment and destruction. Past studies mainly considered regular wave types to represent extreme wave events and the impact force is calculated. The main aim of the present study is to generate a focused wave to simulate an extreme wave condition in the numerical wave tank and to study the impact force on coastal bridge deck. Focused wave and irregular wave of same significant wave height and peak period are generated and comparison is done with solitary wave of same crest height to study the effects of different wave types on impact force. Focused wave height is giving higher impact force when comparing the irregular and solitary wave of same crest height