Abstract: The present study validates growth models based on logistic equations to predict and analyze the use of fish viscera hydrolysates as a source of protein for rainbow trout (Oncorhynchus mykiss) diet. The study examines zootechnical variables such as body weight, total length, and biomass in the fingerling and rearing phases, during seven months of production. The treatments consist of isoproteic and isoenergetic diets with a content of 10%, 15%, and 20% of viscera hydrolysates. A commercial diet is used as a control. The results show that the logistic model explained more than 97% of the variation of the field data, proving to be adequate for assessing the efficiency of using 20% replacement hydrolyzed fish viscera. It is concluded that the logistic model developed here is a useful tool for diagnosing the effectiveness and quality of biological diets in each of the production phases of rainbow trout.

Resumen: El presente estudio valida modelos de crecimiento basados en la ecuación logística para predecir y analizar la utilización de hidrolizados de vísceras de pescado como fuente de proteína de dietas de trucha arcoíris (Oncorhynchus mykiss). Se examinan las variables zootécnicas de peso corporal, longitud total y biomasa en las fases de alevinaje y levante, durante siete meses de producción. Como tratamientos, se analizan dietas isoproteicas e isoenergéticas con un contenido de 10%, 15% y 20% de hidrolizados de vísceras, así como una dieta comercial usada como control. El modelo logístico explica más del 97% de la variación de los datos de campo, demostrando ser adecuado para evaluar la eficiencia de la utilización de vísceras hidrolizadas de pescado en cantidades de 20% de reemplazo. Se concluye que el modelo logístico desarrollado aquí es una herramienta útil para diagnosticar la efectividad de la calidad biológica de las dietas en cada una de las fases de producción de la trucha arcoíris.

Abstract In big cities the construction of new tunnels in close proximity to existing ones is unavoidable given the densely and growing occupation of the subsoil. The interaction between tunnels in such conditions is well identified in the literature and has been thoroughly investigated in the past. However, most of those studies are focused on the effect of the ground conditions and relative position between tunnels on the ground movements and often disregard the impact induced by the second excavation on the lining forces of both tunnels. To provide further insight into this subject a numerical study of the sequential excavation of side-by-side twin tunnels is presented in this paper. The study also assesses the influence of parameters that have not been covered in the previous studies, namely the stiffness of the lining and the initial stress conditions. The results confirm that significant interaction occurs when the tunnels are spaced less than one diameter, where a considerable increase on both hoop forces and bending moments, particularly on the lining of the existing tunnel, is observed after the second excavation. For a spacing higher than two diameters the interaction between tunnels is almost negligible. The magnitude of the lining forces and of the interaction effects are also dependent of the stiffness of the linings and of the initial stress conditions.

Social vulnerability has proved to be an independent risk factor for hypoglycemia in patients with diabetes. In some countries, patients who are in a vulnerable situation are assisted in the public health system which provides free medical care. This study compares the prevalence of hypoglycemia among patients with type 2 diabetes (T2D), in public versus private sector and its relationship with social vulnerability. This multicentric descriptive study included 600 patients with T2D from public and private care institutions of Argentina. Socioeconomic level (SEL) was evaluated through the Marketing Argentinean Association survey. Number of severe, documented symptomatic and asymptomatic hypoglycemias were registered. Among the patients included, 66% were assisted in the public sector. The 41% of patients (n = 246) registered at least 1 episode of any hypoglycemia event being more prevalent in the public sector compared to the private sector (50% vs. 22%). In the adjusted analysis it was observed a greater risk of hypoglycemia in public sector (OR 4, 95% CI 2.65-6.04) and in patients that did not have diabetological education (OR 2.28 95% CI 1.35-3.84). Similarly, unemployment (OR 5.04 95% CI 2.69-9.46), and marginal SEL (OR 60.79 95% CI 14.89-248.13) increased the risk of hypoglycemia. Several factors related to social vulnerability as unemployment, marginal SEL and poor sanitary education showed a significant increase in the hypoglycemia risk. Professionals working with people with diabetes must take into account these factors for a safe treatment of the disease.

La vulnerabilidad social ha demostrado ser un factor de riesgo independiente de hipoglucemia en pacientes con diabetes. Los pacientes que se encuentran en situación de vulnerabilidad social reciben asistencia en el sistema de salud pública que brinda atención médica gratuita. Este estudio compara la prevalencia de hipoglucemia en pacientes con diabetes tipo 2 en el sector público frente al privado y su relación con la vulnerabilidad social. Se realizó un estudio multicéntrico descriptivo que incluyó 600 pacientes con diabetes tipo 2 de instituciones de atención pública y privada de Córdoba. El nivel socioeconómico se evaluó a través de la encuesta de la Asociación Argentina de Marketing que evalúa la dimensión social, educativa y económica para estratificar el nivel socioeconómico. Se registró el número de hipoglucemias graves, documentadas sintomáticas y asintomáticas. El 66% de los pacientes pertenecían al sector público. El 41% de los pacientes (n = 246) registró al menos 1 episodio de cualquier evento de hipoglucemia. En el análisis ajustado, se observó un mayor riesgo de hipoglucemia en el sector público (OR 4, 95% CI 2.65-6.04), en pacientes que no tenían educación diabetológica previa (OR 2.28, 95% CI 1.35-3.84), en desempleados (OR 5.04, 95% CI 2.69-9.46) y en aquellos con nivel socioeconómico marginal (OR 60.79 95% CI 14.89-248.13). Factores relacionados con la vulnerabilidad social como el desempleo, el nivel socioeconómico marginal y educación sanitaria deficiente mostraron un aumento en el riesgo de hipoglucemia. Los profesionales que trabajan con personas con diabetes deben tener en cuenta estos factores para un tratamiento seguro de la enfermedad.

Resumen El estudio de lagos como fuentes de recursos naturales de diversa índole constituye una preocupación de entidades que regulan su manejo en conservación y producción sostenible en interacción de factores bióticos y abióticos que afectan el ecosistema. En consecuencia, éste proyecto puede generar información científica permanente para un plan de ordenamiento de la cuenca del lago Guamuez en cumplimiento de compromisos internacionales y nacionales en la conservación del humedal La Cocha. La presente investigación mediante 12 muestreos periódicos en cinco estaciones: 1. Intiyaco (E1), zona superficial (A) y zona profunda (B); las siguientes estaciones se ubicaron a partir de E1; estación 2. 50 metros (C); 3. 100 metros (D); 4. 150 metros (E) y 5. Centro del lago (F), análisis de varianza, prueba de normalidad y correlación, pretendió evaluar el efecto de las explotaciones acuícolas en jaulas flotantes sobre las variables fisicoquímicas y biológicas del lago Guamuez. La condición limnológica, presentó diferencias significativas entre aguas superficiales y profundas (respectivamente NH-N y DB, con P-PO, DQ, Colift y Coliff); el pH y NTU en A y B, difieren de los demás sitios evaluados. Existe mayor concentración (P<0,05) de OD y %O en estación 3. En el año 2008 las estaciones 1 y 5 señalan mayor media en la estimación de OD, pH, Dur y DB y para el año 2018, aumentó los parámetros limitantes hacia el centro del lago (NH-N, P-PO, NTU y Colift); así, el 70% de los parámetros de evaluación en el proyecto Intiyaco, aumentaron su estimación media entre los años 2008 y 2018 (DB, OD y %O). La concentración de E. coli presenta mayor media (P<0,05) en B y difiere de A, C, D, E y F; mientras fosfatos y Colift difieren (P<0,05) entre A y las estaciones B, C, D, E y F.

Abstract The study of lakes as sources of natural resources of various kinds constitutes a concern of entities that regulate their management in conservation and sustainable production in interaction of biotic and abiotic factors that affect the ecosystem. Consequently, this project can generate permanent scientific information for a management plan for the Guamuez Lake basin in compliance with international and national commitments in the conservation of the La Cocha wetland. The present investigation by means of 12 periodic sampling in five stations: 1. Intiyaco (E1), superficial zone (A) and deep zone (B); the following stations were located from E1; station 2. 50 meters (C); 3. 100 meters (D); 4. 150 meters (E) and 5. Center of the lake (F), analysis of variance, normality test and correlation, sought to evaluate the effect of aquaculture farms in floating cages on the physicochemical and biological variables of Lake Guamuez. The limnological condition showed significant differences between surface and deep waters (respectively NH-N and DB, with P-PO, DQ, Colift and Coliff); the pH and NTU in A and B, differ from the other sites evaluated. There is a higher concentration (P<0,05) of OD and %O in station 3. In 2008, stations 1 and 5 show a higher average in the estimation of OD, pH, Dur and DB and for 2018, the parameters increased limiting towards the center of the lake (NH-N, P-PO, NTU and Colift); Thus, 70% of the evaluation parameters in the Intiyaco project increased their average estimate between 2008 and 2018 (DB, OD and %O). The concentration of E. coli has a higher mean (P<0,05) in B and differs from A, C, D, E and F; while phosphates and Colift differ (P<0,05) between A and stations B, C, D, E and F.

Resumo O estudo de lagos como fontes de recursos naturais de vários tipos constitui uma preocupação de entidades que regulam seu manejo na conservação e produção sustentável na interação de fatores bióticos e abióticos que afetam o ecossistema. Consequentemente, este projeto pode gerar informações científicas permanentes para um plano de manejo da bacia do lago Guamuez, em conformidade com os compromissos internacionais e nacionais na conservação do pantanal de La Cocha. A presente investigação por meio de 12 amostragens periódicas em cinco estações: 1. Intiyaco (E1), zona superficial (A) e zona profunda (B); as seguintes estações foram localizadas a partir da E1; estação 2. 50 metros (C); 3. 100 metros (D); 4. 150 metros (E) e 5. Centro do lago (F), análise de variância, teste de normalidade e correlação, procuraram avaliar o efeito de fazendas de aquicultura em gaiolas flutuantes nas variáveis físico-químicas e biológicas do lago Guamuez. A condição limnológica mostrou diferenças significativas entre águas superficiais e profundas (respectivamente NH-N e DB, com P-PO, DQ, Colift e Coliff); O pH e NTU em A e B diferem dos demais locais avaliados. Há uma maior concentração (P<0,05) de DO e %O na estação 3. Em 2008, as estações 1 e 5 apresentam uma média mais alta na estimativa de DO, pH, Dur e DB e, para 2018, os parâmetros aumentaram limitando em direção ao centro do lago (NH-N, P-PO, NTU e Colift); Assim, 70% dos parâmetros de avaliação no projeto Intiyaco aumentaram sua estimativa média entre 2008 e 2018 (DB, OD e %O). A concentração de E. coli tem uma média mais alta (P<0,05) em B e difere de A, C, D, E e F; enquanto os fosfatos e Colift diferem (P<0,05) entre A e as estações B, C, D, E e F.

RESUMO A citologia é utilizada como método de detecção e rastreio de lesões malignas e pré-malignas e mostra seu potencial desde os trabalhos originais de Papanicolaou. Geralmente, os esfregaços citológicos são corados com a coloração de Papanicolaou, apesar desse método exigir muito tempo e vários reagentes. O objetivo deste estudo é avaliar a qualidade de uma coloração original Blue Stain em esfregaços esfoliativos comparando-a com a coloração standard de Papanicolaou. O novo método de coloração Blue Stain permite corar citologias ginecológicas com elevados padrões de qualidade a um custo e tempo reduzidos quando comparado com o método de Papanicolaou.

ABSTRACT Cytology is used as detection and screening method of malignant and pre-malignant lesions showing their potential since the original works of Papanicolaou. The cytological smears are usually stained with the Pap staining, although this method is time consuming and requires different reagents. The aim of this study is to assess the quality of an original Blue staining in exfoliative smears comparing it with the standard Papanicolaou staining. The new Blue staining allows staining gynecological cytology with high quality standards at reduced cost and time when compared to the Papanicolaou method.

The Zoology Museum of the Universidad de Concepción (MZUC-UCCC) periodically reports on all new additions of type material to its collections. The first list (Part I), was submitted in December of 1968 by Tomas Cekalovic and Jorge N. Artigas and included all types regardless of their denomination. Parts II-V, by the same authors, followed the same format (Part II January-1969/January 1974; Part III until September 1976; Part IV until June 1981; Part V june 1981-December 1992). After Part V, there is a 22 years gap due to the retirement and later passing of Tomas Cekalovic (Curator). The present Part VI, is authored by Jorge N. Artigas and E. Solar and takes into account the types added between December 1992 and August 2015. The accompanying figure includes all Types added between 1968 and 2015. Within the period corresponding to December 1992 and August 2015 (Part VI) a total of 2.656 types were added to the collection, with different names.

El Museo de Zoología de la Universidad de Concepción (MZUC-UCCC) presenta periódicamente los ingresos de material tipo a sus colecciones. La primera lista (Parte I), fue entregada en diciembre de 1968, sus autores Tomás Cekalovic y Jorge N. Artigas, consideraron todos los tipos de cualquier denominación. Las siguientes listas: Partes II-V, de los mismos autores, siguieron similar presentación (Parte II enero 1969-enero 1974; Parte III hasta septiembre de 1976; Parte IV hasta junio 1981; Parte V junio 1981-diciembre 1992). Posterior a la Parte V, hay un período de 22 años, debido a la jubilación y fallecimiento de don Tomás Cekalovic (curador). La presente Parte VI, fue elaborada por Jorge N. Artigas y E. Solar y considera los tipos ingresados entre diciembre 1992 y agosto 2015. Se entrega cuadro que incluye el total de tipos ingresos entre 1968 y 2015. En el período correspondiente a diciembre 1992 y agosto 2015 (Parte VI), se incorpora en este período un total de 2.656 tipos de distintas denominaciones.

O objetivo deste trabalho foi verificar se a forma de colocação de adubo pela semeadora adubadora na instalação da cultura, em sistema de semeadura direta sob a palha, afeta os componentes de rendimento da cultura do milho. Os tratamentos consistiram na colocação do adubo 0,05 m abaixo e ao lado da semente, na frente do disco de corte e sem adubo na semeadura, em 03 propriedades e em 03 anos agrícolas. Em cada propriedade, o delineamento experimental adotado foi o em blocos ao acaso, com 08 repetições, cujas parcelas possuíam 30 m² cada. Avaliaram-se a população inicial e os componentes de rendimento. Nas condições experimentais, conclui-se que a adubação na base pode afetar os componentes de rendimento. O posicionamento do adubo pode afetar o estande inicial, mas não os componentes de rendimento.

The aim of this study was to determine whether the form of placing the fertilizer by the planter during the sowing under mulch in the no till system affects the yield of corn. The treatments consisted of placing the fertilizer during the seeding 0.05 m below and beside the seed, in front of the cutting blade and without fertilizer, in 03 farms during 03 cropping years. The experimental design at each farm was the randomized block, with 08 repetitions, whose plots had 30 m² each. The initial population and yield components were evaluated. Under the experimental conditions it is concluded that base fertilization can affect the yield. Fertilizer placement can affect the initial stand, but not the yield.

With the purpose of increasing the amount of sugars that benefit the yield of ethanol in fermentation, it was performed hydrolysis of Beta vulgaris L. with H2SO4. The following parameters were used to evaluate the degree of hydrolysis of substrate: stirring, acid concentration, mass, and temperature. The mass was tested in the range of 5 to 40 g and stirring from 100 to 250 rpm. The temperature and reaction time were evaluated in the range of 30 to 90 °C and 2 to 6 h, respectively. The tested particle size was 0.5 mm and a reaction volume of 50 mL was used for all cases. The rate of 150 rpm had a better effect over hydrolysis. By comparison of means it was determined that concentrations higher than 0.5 N of H2SO4 showed no significant effect (p<0.05) on the release of total sugars. The highest yield of hydrolysis was obtained with 10 g of substrate in the reaction medium. The temperature of 90 °C provided the highest hydrolysis and at 50 °C the amount of total sugars was 3 g/L lower than that generated with 90 °C. The best pretreatment conditions were: 40 °C, 150 rpm and 10 g of substrate. The increase in the reaction time indicates that hemicellulose degradation occurs inside the matrix of substrate and that amorphous regions are generated, promoting cellulose availability.

Con el propósito de incrementar la cantidad de azúcares que beneficie el rendimiento de etanol en la fermentación, se realizó la hidrólisis de Beta vulgaris L. con H2SO4. Se evaluó el efecto que tienen los parámetros: agitación, concentración de ácido, masa y temperatura sobre el grado de hidrólisis del sustrato. La masa se probó en el intervalo de 5 hasta 40 g y la agitación de 100 a 250 rpm. La temperatura y el tiempo de reacción fueron evaluados en el intervalo de 30 a 90 °C y de 2 a 6 h, respectivamente. El tamaño de partícula probado fue de 0.5 mm y para todos los casos el volumen de reacción de 50 mL. A una velocidad de 150 rpm se tuvo mayor efecto de hidrólisis. Mediante comparación de medias se determinó que las concentraciones superiores a 0.5 N de H2SO4 no tienen efecto significativo (p<0.05) sobre la liberación de azúcares totales. Con 10 g de sustrato en los medios de reacción se obtuvo el mayor rendimiento de hidrólisis. La temperatura de 90 °C proporcionó la mayor hidrólisis, y con 50 °C la cantidad de azúcares totales fue 3 g/L menor a la generada en 90 °C. Las mejores condiciones del diseño del experimento fueron; 40 °C, 150 rpm y 10 g de sustrato. El incremento en el tiempo de reacción indicó que se lleva a cabo la degradación de hemicelulosa dentro de la matriz del sustrato y se generan regiones amorfas que promueven la disponibilidad de la celulosa.

O presente trabalho teve como objetivos avaliar o potencial antioxidante dos extratos de manjericão (Ocimum basilicum L.) e orégano (Origanum vulgare L.), e medir a estabilidade oxidativa do óleo de soja adicionado de ambos os extratos. Foram obtidos extratos de manjericão e orégano nas formas in natura e seco, a partir das folhas das especiarias submetidas às extrações aquosas, etanólicas e sequenciais por 30 min, na proporção de 1:3 (m/m, especiaria:solvente), sob agitação contínua e temperatura ambiente. Nos extratos foram determinados o valor de concentração eficiente (CE50), a atividade antioxidante máxima (AA) e a quantidade de compostos fenólicos totais (CFT). Os extratos de orégano e manjericão com maior atividade antioxidante foram aplicados no óleo de soja em concentrações que variaram de 250 a 2.000 mg kg-1, para avaliação da estabilidade oxidativa. Os resultados indicaram que os extratos etanólicos de manjericão in natura com CE50 = 863,97 µg mL-1, AA = 35,63% e CFT = 56,55 mg g-1 e orégano seco com CE50 = 415,82 µg mL-1, AA = 48,42% e CFT = 147,96 mg g-1 foram os mais eficientes para serem aplicados ao óleo de soja na concentração de 2.000 mg kg-1, na qual apresentaram a maior estabilidade oxidativa, 21,8 e 15,1 horas, respectivamente. Com base na metodologia empregada e dentro das condições estudadas, concluiu-se que os extratos etanólicos de manjericão in natura e orégano seco revelaram potencial antioxidante quando aplicados em óleo de soja.

This study aimed to evaluate the antioxidant potential of basil (Ocimum basilicum L.) and oregano (Origanum vulgare L.) extracts and to measure the oxidative stability of soybean oil added to both extracts. Basil and oregano extracts were obtained in fresh and dry forms from the leaves of spices subjected to aqueous, ethanol and sequential extraction for 30 min at a ratio of 1:3 (m/m, spice:solvent) and continuously shaken at room temperature. For the extracts, the value of effective concentration (EC50), the maximum antioxidant activity (AA) and the amount of total phenolic compounds (TFC) were obtained. The oregano and basil extracts that had higher antioxidant activity were applied to soybean oil at concentrations ranging from 250 to 2,000 mg kg-1, to evaluate the oxidative stability. The results indicated that the ethanol extracts of fresh basil with EC50 = 863.97 mg mL-1, AA = 35.63% and TFC = 56.55 mg g-1 and dry oregano with EC50 = 415.82 mg mL-1, AA = 48.42% and TFC = 147.96 mg g-1 were more efficient for application in soybean oil at a concentration of 2,000 mg kg-1, which showed the highest oxidative stability, 21.8 and 15.1 hours, respectively. Based on the employed methodology and under the studied conditions, it was concluded that the ethanol extracts of fresh basil and dry oregano showed antioxidant potential when applied in soybean oil.

O crescente interesse na substituição de antioxidantes sintéticos por naturais em alimentos tem fomentado a pesquisa sobre fontes vegetais, caracterização de matérias-primas e identificação de novos compostos antioxidantes. As reações de oxidação não são uma preocupação exclusiva das indústrias alimentícias, seu estudo é também amplamente necessário para evitar implicações indesejáveis na saúde humana. O objetivo desta revisão, depois de apresentar aspectos gerais sobre a oxidação, é concentrar-se nos benefícios da utilização das especiarias como antioxidantes naturais, em especial as da família Labiatae, amplamente utilizadas na culinária brasileira.

The growing interest in replacing synthetic antioxidants by natural antioxidants in food has stimulated research on vegetable sources, raw material characterization and identification of new antioxidant compounds. Oxidation reactions are not an exclusive preoccupation of the food industry; studies regarding this issue are widely necessary in order to prevent undesired implications for human health. The aim of this review, after presenting overall aspects about oxidation, is to concentrate on the benefits of using spices as natural antioxidants, especially those from the Labiatae family, which are widely used in the Brazilian cuisine.

This study analyzes the effect that the availability of resources and remittances have on household healthcare expenditure, as well as its intra-household allocation, a topic that has barely been explored in the case of Mexico. Using a Tobit model and GLS, we find that health is a luxury good, with an expenditure elasticity useful for social valuation close to 2.0, and another useful for private investment of 1.24. In contrast to institutional transfers, which proved not significant, remittances show an additional effect for the population lacking labor or social security. Significant gender differences are also found for certain age groups.

Este trabajo analiza el efecto que la disponibilidad de recursos y las remesas tienen sobre el gasto en salud de los hogares, así como su asignación intrafamiliar, tema que ha sido poco estudiado para el caso de México. Al utilizar un modelo Tobit y MCG se encuentra que la salud es un bien de lujo, con una elasticidad gasto útil para la evaluación social cercana a 2.0, y otra para la inversión privada de 1.24. Las remesas presentan un efecto adicional para la población sin seguridad social / médico laboral, contrario a las transferencias institucionales. Además, se encuentran diferencias significativas por género para ciertos grupos de edad.

Different techniques - Schmidt's test on wood shavings; Wolcot standard test with sand; Skaife box; test of preference; and starvation test - were used to measure wood resistance to the termite Porotermes quadricollis (Rambur). Species were arranged into three groups according to their termite resistance: Low: Monterrey pine (natural) (Pinus radiata D.Don), Mañío (Podocarpus saligna D.Don), and Olivillo Aetoxiconpunctatum Ruiz et Pavon. Middle: Alerce Fitzroya cupressoides (Molina), agglomerate Monterrey pine, Raulí Nothophagus alpina Poepp. et Endl., and Roble Nothophagus obliqua (Mirbel). High: Laurel Laurelia sempervirens (Ruiz et Pavon), Araucaria Araucaria araucana (Molina), and Lingue Persea lingue (Ruiz et Pavon). Among the untreated woods, Laurel showed the highest resistance to termite damage. Monterrey pine treated with Boliden® salts (K33, 6 kg x m ) was highly toxic to termites. Individuals that fed on treated wood did not live significantly longer than termites from the starvation test. Black feces and damaged exoskeleton shows the effect of intoxication. According to the amount of wood consumed in 30 days by 50 termites, resistance to termites was:0.247 g - 0.232 Pinus Monterrey and Mañío; 2.206 g -0.187 g Lingue, Coigue, Raulí, Alerce, Araucaria; 0.179 g- 0.077 g Laurel, Ulmo and Olivillo.

Se uso distintas técnicas - incluyendo las pruebas de Schmidt de virutas; de Wolcott modificada; de preferencia; Standard de arena, Cajas Skaife; y de inanición - para evaluar la resistencia termítica a Porotermes quadricollis (Rambur) de distintas maderas. Como resultado de los ensayos, las maderas se ordenaron según su resistencia termítica en tres. Baja: Pino (natural) Pinus radiata D.Don, Mañío Podocarpus saligna D.Don y Olivillo Aextoxiconpunctatum Ruiz et Pavón. Mediana: Alerce Fitzroya cupressoides (Molina), Pino Insigne aglomerado, Raulí Nothophagus alpina (Poepp. et Endl.) y Roble Nothophagus obliqua (Mirbel). Alta: Laurel Laurelia sempervirens (Ruiz et Pavón), Araucaria Araucaria araucana (Molina) y Lingue Persea tingue (Ruiz et Pavón). El Laurel demostró la mayor resistencia termítica. El Pino Insigne impregnado con Sales Boliden® (K33, 6 kg x m ) demostró ser altamente tóxico para este termite. Los individuos que lo consumieron resistieron hasta 13 días, ligeramente más que los termites sometidos a la prueba de inanición; las excretas negras y el dermoesqueleto alterado, demostraron los efectos de la intoxicación. Se estimó que la capacidad de consumo de 50 termites de 0.8 - 10 mm, en 30 días es de: 0.247 g - 0.232 Pino insigne y Mañío; 2.206 g - 0.187 g Lingue, Coigue, Raulí, Alerce, Araucaria; 0.179 g- 0.077 g Lurel, Ulmo, Olivillo.

In this paper, the design of a Web metadata search model with semi-intelligent features is proposed. The search model is oriented to retrieve the metadata associated to a data warehouse in a fast, flexible and reliable way. Our proposal includes a set of distinctive functionalities, which consist of the temporary storage of the frequently used metadata in an exclusive store, different to the global data warehouse metadata store, and of the use of control processes to retrieve information from both stores through aliases of concepts.

En este artículo se propone el diseño de un modelo para la búsqueda Web de metadatos con características semiinteligentes. El modelo ha sido concebido para recuperar de manera rápida, flexible y fiable los metadatos asociados a un data warehouse corporativo. Nuestra propuesta incluye un conjunto de funcionalidades distintivas consistentes en el almacenamiento temporal de los metadatos de uso frecuente en un almacén exclusivo, diferente al almacén global de metadatos, y al uso de procesos de control para recuperar información de ambos almacenes a través de alias de conceptos.