Comment on "towards a differential equation for the nonrelativistic ground-state electron density of the He-like sequence of atomic ions" Serra, Pablo In a recent paper (Phys. Rev. A 71, 042501 (2005))Howard and March presented the exact ground state wave function of the spherical He-like atom, and many physical aspects of this solution were analyzed. We show that this function is not the exact solution of the model

Retórica y espacios de poder en "¿Qué es esto? Catilinaria" Lamoso, Adriana Amanda En los ensayos que el escritor argentino Ezequiel Martínez Estrada dedica a la interpretación del hecho peronista en nuestro país, en particular en "¿Qué es esto? Catilinaria", problematiza el rol de la intelectualidad argentina, en virtud de su ilusoria intervención en los asuntos políticos y culturales de la esfera pública. Mediante un discurso panfletario monta un artefacto retórico con el que interpela a los intelectuales, en términos de virulenta reacción opositiva. El cuestionamiento a los otros recibe un tratamiento de fuerte confrontación e impugnación, y su representación se consolida conforme diseña su propia imagen y la de sus destinatarios supuestos, en un juego de marcadas tensiones contrapuestas. Tal configuración no puede recibir sino, por parte de los adversarios, polémicos y descalificadores contraargumentos, no escasamente reconocibles en las esferas de transmisión de la cultura. El discurso del ensayista constituye una arenga en la que se afirma un saber desafiante, en virtud de la (auto)legitimidad que le otorga a su consabido conocimiento veraz de los móviles que determinaron y constituyeron la idiosincrasia de nuestra nacionalidad. En el desarrollo del trabajo se transitarán los argumentos que instalan al peronismo en el centro de una polémica que fractura y desplaza en cruentos duelos intelectuales a los partícipes de la cultura local.; In the essays that the argentine writer Ezequiel Martínez Estrada dedicates to the interpretation of the peronist phenomenon in our country, particularly in "¿Qué es esto? Catilinaria", questions the role of argentine intellectuals due to his illusory part in the political and cultural matters of the public sphere. By means of a pamphletist speech, MartÌnez Estrada creates a rhetorical machine with which he appeals to intellectuals in terms of virulent opposing reaction. The questioning to the others receives a treatment of strong confrontation and opposition, and his representation consolidates according to his own image and that of his supposed addressees, in a game of marked opposed tensions. Such configuration canít receive but, on the part of the opponents, controversial and disqualified counter- arguments not scantly recognized in the spheres of cultural transmission. The essayistís speech is a harangue in which a challenging knowledge is assured, in virtue of the own genuininess that he gives to the true knowledge of the motives that determined and made the idiosyncrasy of our nationality. In this paper weíll discuss the arguments that put peronism in the middle of a controversy that fractures and displaces the participants of local culture in bloody intellectual duels.

La evaluación de la personalidad infantil a partir del enfoque de los Cinco Grandes Factores de Personalidad (Big Five) Lemos, Viviana Noemí Desde hace algunos años, el enfoque de los Cinco Grandes Factores de Personalidad (Big Five), ha surgido como un tema de gran interés en la Psicología de la Personalidad, fundamentalmente en el área de la Evaluación Psicológica. Aunque el desarrollo teórico acerca de la estructura de la personalidad infantil es extenso, el objetivo de este trabajo es analizar específicamente la adecuación del mencionado modelo, en la evaluación de la personalidad infantil. Se contrastará la investigación bibliográfica sobre el tema, con la operacionalización del constructo realizado a partir de la elaboración del Cuestionario Argentino de Personalidad Infantil (Lemos, 2004) el cual se basa en el enfoque de los Cinco Grandes Factores de Personalidad.; In the last few years, the Big Five Personality Factors approach has appeared as a very interesting theme in the field of personality psychology and particularity in the area of Psychology Evaluation. Although theoretical developments about child personality structure are copious, the purpose of this paper is analysing the adequacy of the above mentioned model to the evaluation of child personality. The bibliographic research on the subject is cantrasted with the opertationalization of the construct made on the basis of elaborating the Argentine Questionnaire of Child Personality (Lemos, 2004) based in turn on the Big Five Personality Factors approach

Notas sobre el modelo subyacente del Libro de Séneca hordenado es dispuesto contra la yra e saña Fuentes, Juan Héctor Desde hace ya unos años, la crítica textual han venido destacando la importancia de la reconstrucción del modelo subyacente para una completa edición de traducciones y romanceamientos medievales. Partiendo de los actuales estudios sobre la tradición manuscrita de los Diálogos de Séneca, el presente trabajo pretende ofrecer una aproximación al modelo latino subyacente del Libro de Séneca hordenado e dispuesto contra la yra e saña.

An Overview of Autonomic Regulation of Parotid Gland Activity: Influence of Orchiectomy Busch, Lucila; Sterin, Leonor Josefina; Borda, Enri Santiago The parotid gland participates in the digestive process by providing fluid, electrolytes and enzymes that facilitate the onset of digestion. Neurotransmitters, hormones and biologically active peptides regulate its activity. The autonomic system is the main regulatory mechanism of the gland. Sympathetic stimulation induces amylase release through â1-receptor activation and little fluid secretion by á1-receptor activation. The parasympathetic system controls basal activity of the gland acting on M1 and M3 muscarinic acetylcholine receptors and induces the secretion of fluid saliva rich in electrolytes through the modulation of ion channels and the Na + -K + -ATPase activity. In addition, its activation induces amylase release. The mechanisms involved in amylase secretion by isoproterenol and carbachol, as well as the mechanism of the cholinergic regulation of Na + -K + -ATPase activity and the changes observed after orchiectomy, are the scope of this review.

Vitamin D2 dose required to rapidly increase 25OHD levels in osteoporotic women Mastaglia, Silvina Rosana; Mautalen, Carlos Alfredo; Parisi, Muriel Solange; Oliveri, María Beatriz OBJECTIVE: Assessment of the effectiveness and safety of high daily 125 microg (5,000 IU) or 250 microg (10,000IU) doses of vitamin D(2) during 3 months, in rapidly obtaining adequate 25 hydroxyvitamin D (25OHD) levels. DESIGN: Longitudinal study. SUBJECTS: Postmenopausal osteopenic/osteoporotic women (n = 38) were studied during winter and spring. Median age (25-75th percentile) was 61.5 (57.00-66.25) years, and mean bone mineral density (BMD) was 0.902 (0.800-1.042)g/cm(2). Subjects were randomly divided into three groups: control group (n=13): no vitamin D(2), 125 mug/day (n=13) and 250 microg/day (n=12) of vitamin D(2) groups, all receiving 500 mg calcium/day. Serum calcium, phosphate, bone alkaline phosphatase (BAP), C-telopeptide (CTX), 25OHD, mid-molecule parathyroid hormone (mmPTH), daily urinary calcium and creatinine excretion were determined at baseline and monthly. RESULTS: For all subjects (n=38), the median baseline 25 hydroxyvitamin D (25OHD) level was 36.25 (27.5-48.12) nmol/l. After 3 months, 8% of the patients in the control group, 50% in the 125 microg/day group and 75% in the 250 microg/day group had 25OHD values above 85 nmol/l (34 ng/ml). Considering both vitamin D(2) groups together, mmPTH and BAP levels diminished significantly after 3 months (P<0.02), unlike those of CTX. Serum calcium remained within normal range during the follow-up. CONCLUSIONS: The oral dose of vitamin D(2) required to rapidly achieve adequate levels of 25OHD is seemingly much higher than the usual recommended vitamin D(3) dose (20 mug/day). During 3 months, 250 microg/day of vitamin D(2) most effectively raised 25OHD levels to 85 nmol/l in 75% of the postmenopausal osteopenic/osteoporotic women treated.

State estimation in batch processes using a nonlinear observer Biagiola, Silvina Ines; Solsona, Jorge Alberto This paper deals with the problem of nonlinear states estimation in batch chemical processes. It presents a reduced-order nonlinear observer approach to perform the estimation. The proposed method allows adjustment of the speed of convergence towards zero of the estimation error. The stability properties of the model-based observer are analytically treated in order to show the conditions under which exponential convergence can be achieved. In addition, the performance of the proposed observer is evaluated on batch processes.

Reflexiones en torno a la cultura en América Latina Perilli, Carmen Noemi La descolonización de la cultura latinoamericana supone la revisión de los múltiples relatos tejidos alrededor de la identidad del continente, identidad entendida como esencia. Desde antes de la Conquista La Letra proyectó una imagen virtual del Nuevo Mundo. Las representación estuvo signada por la alteridad del objeto, en relación a un sujeto que lo definía desde fuera.

A variant of the pinwheel tiling Ferrari, Mariano Andrés; Panzone, Pablo Andres In this paper, a number of new generating relations are obtained for general triple hypergeometric series by using integral operators. Results involving double series and hypergeometric functions of Srivastava, Appell and Humbert are obtained as applications of these generating relations.

Post-mortem analysis of silica bricks for coke ovens Camerucci, Maria Andrea; Tomba Martinez, Analia Gladys; Cavalieri, Ana Lia; De Córdova, M.; Topolevsky, R. Silica bricks that operated during 12 and 25 years in coke ovens at pusher and coke chamber zones were studied. Two different regions of the bricks were analysed: that in contact with coal (oven side) and the other in contact with burners (burner side). Unused silica bricks were also studied as reference. The evolution of the phases was accomplished by X-ray diffraction qualitative analysis. The method of standard additions or spiking method was employed in order to do an estimation of the residual quartz content. The picnometric densities of silica bricks were determined on powder samples in kerosene. The bricks were also characterized by bulk density and apparent porosity measurements on the basis of DIN EN 993-1 standard. The study of the microstructural evolution was carried out by optical microscopy. The cold crushing strength (CCS) was determined at room temperature according to DIN 51 067-1 (or EN 933-5). From these results, an analysis of the alteration of silica bricks in coke ovens in function of the operation time, oven zone and brick side was accomplished.

Hepatocellular apoptosis during Candida albicans colonization: Involvement of TNF-α and infiltrating Fas-L positive lymphocytes Renna, Maria Sol; Correa, Silvia Graciela; Porporatto, Carina; Figueredo, Carlos Mauricio; Aoki, Maria del Pilar; Paraje, María Gabriela; Sotomayor, Claudia Elena The liver constitutes the first barrier in the control of hematogenous dissemination of Candida albicans of intestinal origin. In rats infected with C. albicans, this organ limits the growth of the yeast and mounts an efficient inflammatory reaction. However, in rats infected and exposed to chronic varied stress, the hepatic inflammatory reaction is compromised and the outcoming of the infection is more severe. Although in both groups the fungal burden is associated with hepatotoxicity, steatosis, increment of hepatic enzymes and lipid peroxidation, stress-related differences are clearly evident. Herein, we evaluated in infected and infected-stressed hosts the involvement of apoptosis and pro-apoptotic signals in the hepatic injury during the acute step of C. albicans infection. We studied in situ apoptosis by 4′,6-diamidino-2-phenylindole dihydrochloride and terminal deoxynucleotidyl transferase dUTP nick-end labeling reactions, the levels of local tumor necrosis factor (TNF)-α mRNA by reverse transcription-PCR and the Fas/Fas-L expression by immunohistochemistry and western blot. We also purified intrahepatic lymphocytes (IHLs) to evaluate the dynamic of recruitment following the infection and to characterize the in vivo and in vitro interaction of C. albicans with this subset evaluating the kinetic of Fas-L and Toll-like receptor-2 (TLR-2) expression. This work shows, for the first time, the occurrence of in situ apoptosis of hepatocytes as well as the kinetic of IHL recruitment early during the C. albicans infection. Moreover, our results demonstrate the ability of the fungus to up-regulate the Fas-L and TLR-2 expression in this subset. In the scenario of early liver injury, the recruited IHLs and the modulated expression of TNF-α, Fas-L and TLR-2 molecules could act coordinately in delivering death signals.

Sangaia, a replacement generic name for the rhytidosteid temnospondyl Cabralia , a preoccupied name Dias-da-Silva, Sergio; Marsicano, Claudia Alicia Cabralia lavinai was recently described as a new rhytidosteid temnospondyl (Dias-da Silva et al., 2006) from the Sanga do Cabral Formation (Lower Triassic of Paraná Basin, Brazil). It has come to our attention that (Dias-da Silva et al., 2006) from the Sanga do Cabral Formation (Lower Triassic of Paraná Basin, Brazil). It has come to our attention that was recently described as a new rhytidosteid temnospondyl (Dias-da Silva et al., 2006) from the Sanga do Cabral Formation (Lower Triassic of Paraná Basin, Brazil). It has come to our attention that Cabralia is a junior homonym—this generic name was previously proposed for a butterfly (Lepidoptera, Ophiderinae) from Brazil (Moore, 1882). We propose the new generic name Sangaia for the new temnospondyl from Brazil, to replace Cabralia Dias-da-Silva et al., 2006, based on the name of the lithostratigraphic unit (Sanga do Cabral Formation) from where the specimen was recovered. name of the lithostratigraphic unit (Sanga do Cabral Formation) from where the specimen was recovered. from Brazil, to replace Cabralia Dias-da-Silva et al., 2006, based on the name of the lithostratigraphic unit (Sanga do Cabral Formation) from where the specimen was recovered. name of the lithostratigraphic unit (Sanga do Cabral Formation) from where the specimen was recovered. for a butterfly (Lepidoptera, Ophiderinae) from Brazil (Moore, 1882). We propose the new generic name Sangaia for the new temnospondyl from Brazil, to replace Cabralia Dias-da-Silva et al., 2006, based on the name of the lithostratigraphic unit (Sanga do Cabral Formation) from where the specimen was recovered. name of the lithostratigraphic unit (Sanga do Cabral Formation) from where the specimen was recovered. from Brazil, to replace Cabralia Dias-da-Silva et al., 2006, based on the name of the lithostratigraphic unit (Sanga do Cabral Formation) from where the specimen was recovered. name of the lithostratigraphic unit (Sanga do Cabral Formation) from where the specimen was recovered. is a junior homonym—this generic name was previously proposed for a butterfly (Lepidoptera, Ophiderinae) from Brazil (Moore, 1882). We propose the new generic name Sangaia for the new temnospondyl from Brazil, to replace Cabralia Dias-da-Silva et al., 2006, based on the name of the lithostratigraphic unit (Sanga do Cabral Formation) from where the specimen was recovered. name of the lithostratigraphic unit (Sanga do Cabral Formation) from where the specimen was recovered. from Brazil, to replace Cabralia Dias-da-Silva et al., 2006, based on the name of the lithostratigraphic unit (Sanga do Cabral Formation) from where the specimen was recovered. name of the lithostratigraphic unit (Sanga do Cabral Formation) from where the specimen was recovered. Sangaia for the new temnospondyl from Brazil, to replace Cabralia Dias-da-Silva et al., 2006, based on the name of the lithostratigraphic unit (Sanga do Cabral Formation) from where the specimen was recovered. name of the lithostratigraphic unit (Sanga do Cabral Formation) from where the specimen was recovered. Cabralia Dias-da-Silva et al., 2006, based on the name of the lithostratigraphic unit (Sanga do Cabral Formation) from where the specimen was recovered.

Comparación del nivel de ingreso del jefe de hogar entre aglomerados; income salary comparison of the heads of family between urban areas Leguizamón,María C.; Martinez, Carlos Ismael; Panico, Adriana F. La Encuesta Permanente de Hogares (EPH) constituye un programa de alcance nacional orientado a obtener información que permite caracterizar a la población en términos demográficos, ocupacionales, habitacionales y de ingresos, desarrollando un sistema integrado de indicadores sociales.    Originalmente el objetivo en este trabajo era realizar una comparación del nivel de ingreso de los jefes de hogar entre los aglomerados urbanos San Miguel de Tucumán-Tafí Viejo con los aglomerados urbanos de las otras provincias que constituyen el Noroeste Argentino de acuerdo a las características de los mismo y de los hogares considerados en la muestra. Sin embargo en la EPH fuente no se discriminan los aglomerados urbanos de las provincias de Salta, Jujuy, Catamarca y Santiago del Estero individualmente, sino que se identifican todas juntas con un mismo código como "resto del NOA". De acuerdo a los datos obtenidos de la fuente2, decidimos considerar sólo dos aglomerados urbanos de importancia San Miguel de Tucumán-Tafí Viejo, con menos de 500.000 habitantes y resto del NOA con más de 500.000 habitantes.   La variable a medir es el Ingreso Total del Jefe de Hogar (variable respuesta) y el objetivo es analizar si está influenciada por las variables a nivel Macro: estrategias del hogar3 (definiciones dadas en el anexo) y tamaño del aglomerado y a nivel Micro: estado de actividad, condición de actividad, nivel de educación, edad, sexo, si posee obra social y si tiene un plan jefa-jefe de hogar.4; The multilevel analysis arised in education, sociology and demographic areas, being applied to several situations, where lower level unities or "microunities" interweave with others from the higher level or "macrounities". In economic researches this analysis is known as Panel Data Analysis. Through this methodology, we can study the simultaneous effect of individual and group variables and their interactions over a dependent variable at individual level. The multilevel models are a unique case of the Generalized Linear Models and they can be applied to other analysis systems like, repeated measures analysis, analysis of categorical data, models of structural equations, time series processes and non linear regression. The objective of this paper is to apply the multilevel data analysis methodology to data from Encuesta Permanente de Hogares (EPH). To compare the income level of the heads of family between urban areas in agreement with their characteristics and those of the families from the sample. The analyzed data are from urban areas of Gran Tucumán - Tafí Viejo and from the rest of the Northwest of Argentina (NOA), taken out from the EPH continue, of the first quarter 2005. We consider urban areas and families in the MACRO level and heads of family in the MICRO level

Efficacy of atelocollagen honeycomb scaffold in bone formation using KUSA/A1 cells Rodriguez, Andrea Paola; Missana, Liliana Raquel; Nagatsuka, Hitoshi; Gunduz, Mehmet; Hidetsugu Tsujigiwa,; Rivera, Rosario; Nagai, Noriyuki To induce new bone formation, mesenchymal stem cells were seeded onto atelocollagen honeycomb scaffold. We evaluated the efficacy of this scaffold combined with KUSA/A1 cells in vivo. KUSA/A1 cells alone and with atelocollagen were implanted in the subcutaneous pockets of 4-week-old male SCID mice. The transplants were subjected to radiographical, histological, and immunohistochemical examinations after 2 and 4 weeks of implantation. Radiographically, both KUSA/A1 cells alone and KUSA/ A1-atelocollagen showed some radiopaque areas formation but the latter disclosed a larger amount. Histologically, KUSA/A1 cells alone showed few small islands of new bone formation surrounded by a thin layer of cellular proliferation. On the other hand, KUSA/A1-atelocollagen revealed abundant new bone formation as well as cellular proliferation. We also determined the immunolocalization of type I collagen, CD34, osteocalcin, osteopontin, and PCNA in this newly formed bone. Our results indicated that collagen scaffold plays an important role allowing vessel formation and cell anchorage, especially through the proliferation and differentiation process in a confined space. This study supports tissue engineering as an alternative for treating different target diseases, such as trauma or congenital defects, and enhances existing therapeutic applications

Slant total electron content for sirio-mortelliccio ray path Cabrera, Miguel Angel; Ezquer, Rodolfo Gerardo; Spalla, Paolo The Total Electron Content (TEC) is used to indicate the ionisation of the ionosphere. TEC is a quantity that concern for predicting space weather effects on telecommunications, improving the accuracy of satellite navigation, fly control vehicles and other systems that use transionospheric signals, because the ionospheric layer affects the mentioned signals. In this work the Slant Total Electron Content (STEC) was calculated with a technique that uses so-called «auxiliaries stations model», and a Chapman layer with scale height equal to atomic oxygen scale height (CHO). The validity was checked with STEC measurements obtained from geosynchronous satellite signals, for SIRIO-Mortelliccio link considering solstices and equinox, in high solar activity period. In general, the deviations between predictions and measurements were lower than 30% for 16 h per day (average). The results suggest that additional studies for other links and solar activity are required in order to improve the model predictions.

Análisis geométrico de localización del modelo elastoplástico parabólico de Drucker-Prager dependiente de gradientes Vrech, Sonia Mariel; Etse, Jose Guillermo En este trabajo se presenta el método geométrico para el análisis de las propiedades de localización del modelo elastoplástico parabólico de Drucker-Prager dependiente de gradientes. El modelo es termodinámicamente consistente. A partir de la solución de la condición de bifurcación discontinua de la elastoplasticidad dependiente de gradientes para pequeñas deformaciones, se formula la elipse de localización en las coordenadas de Mohr. La condición de tangencia entre la elipse de localización y el círculo de Mohr correspondiente al estado de tensiones define el tipo de falla (difusa o localizada) y las direcciones críticas de bifurcación discontinua. Los resultados del análisis geométrico de localización ilustran la capacidad del material elastoplástico parabólico de Drucker-Prager dependiente de gradientes, de suprimir los modos de falla localizada de la formulación clásica o local del modelo, que tiene lugar cuando el módulo de endurec./abland adoptado H iguala al crítico (máximo) de localización Hc. Sin embargo esta propiedad regularizante de la formulación del modelo parabólico de Drucker-Prager basada en gradientes se diluye no solamente en el caso extremo cuando la longitud característica l tiene a cero sino también cuando Hc.

Mating incompatibility among populations of the south american fruit fly Anastrepha fraterculus (Wied.) (Diptera: Tephritidae).; Compatibilidad para el apareamiento entre distintas poblaciones de la mosca sudamericana de la fruta, Anastrepha fraterculus (Wiedemann) Vera, María Teresa; Cáceres, Carlos; Wornayporn, Viwat; Islam, Amirul; Robinson, Alan S.; de la Vega, Marcelo Horacio; Hendrichs, J.; Cayol, J-P Mating compatibility among different populations of the South American fruit fly, Anastrepha fraterculus (Wiedemann) was assessed through mating tests in pairwise combinations. Screened cages, inside a greenhouse, containing Citrus trees were used. Mating compatibility was determined using the Index of Sexual Isolation. Most of the populations were non-compatible with each other and thus sexually isolated. Of these, Tucumán (Argentina) and Piracicaba (Brazil) populations showed a lower degree of isolation, while the other tested combinations were highly isolated. Full mating compatibility was detected only between two Argentinean (Concordia and Tucumán) and two Peruvian populations (La Molina and Piura+La Molina). Flies were sexually active at different times of the day: Tucumán, Concordia and Piracicaba populations presented an early morning peak, La Molina and Piura+La Molina were active around midday and Ibague (Colombia) late in the afternoon. Manipulation of light-phase conditions, to match the times of maximum sexual activity, did not increase the compatibility between La Molina and Tucumán. Based on these behavioral results, which confirm morphometric, genetic and other evidence, the taxonomic revision of this cryptic species complex is warranted. One practical implication is that colonies of this pest to be used in any sterile insect technique approach should be derived from the target population or from a compatible one. Regional efforts should be initiated to determine the distribution of each subgroup and their relationship with each other in terms of compatibility.; Se evaluó la compatibilidad para el apareamiento entre distintas poblaciones de la mosca Sudamericana de la fruta, Anastrepha fraterculus (Wiedemann), mediante pruebas de apareamiento confrontando dos poblaciones por vez. Se utilizaron jaulas con árboles de Citrus limon (L.) en un invernadero. La compatibilidad para el apareamiento se determinó con el ṍndice de aislamiento sexual. La mayorṍa de las poblaciones fueron no compatibles y consecuentemente estuvieron aisladas entre sṍ. Entre estas, las poblaciones de Tucumán (Argentina) y Piracicaba (Brasil) presentaron el menor grado de aislamiento, mientras que las otras presentaron alto aislamiento. Se detectó compatibilidad solamente entre dos poblaciones argentinas (Concordia y Tucumán) y dos poblaciones peruanas (La Molina y Piura ⫹ La Molina). Las poblaciones estuvieron sexualmente activas en distintos momentos del día: Tucumán, Concordia y Piracicaba presentaron un pico de actividad al amanecer, La Molina y Piura ⫹ La Molina al mediodía e Ibague (Colombia) al atardecer. La manipulación de los horarios del ciclo de luz-oscuridad, para coincidir la hora de máxima actividad sexual, no aumentó la compatibilidad entre La Molina y Tucumán. Basándonos en estos resultados comportamentales, que confirman las evidencias genéticas y morfológicas registradas, es necesaria una revisión taxonómica de este complejo de especies. Una consecuencia práctica sería que las colonias a utilizar para la cría masiva de insectos estériles para la implementación de la técnica del insecto estéril para el control de esta plaga deben originarse de la población a controlar o de una población compatible. Se deben iniciar esfuerzos regionales para determinar la distribución de cada subgrupo y su relación en términos de compatibilidad.

Identidad local. Estrategias de ampliación de “la ruta del adobe”. Catamarca, Argentina. Chaila, Josefina del Huerto; Carrizo, Maria Fernanda La búsqueda de lo propio se contrapone al actual paradigma cultural global. Lacoexistencia de tiempos y formas de vida interrelacionados en un medioconvulsionado nos lleva a valorar lo autóctono como una reliquia y recuerdo de lo quenos identifica. El proceso de globalización en el que estamos inmersos tiende a lahomogeneización, esto provoca reacciones adversas tendientes a la búsqueda de lolocal. Las herramientas que nos brinda el turismo para tomar contacto y dar a conocerlo autóctono, nos lleva a buscar estrategias que posibiliten el conocimiento y lavaloración de los pueblos, sus costumbres, su organización social, la configuración ydisposición de la arquitectura civil y doméstica. La “ruta del adobe”, es un recorridoturístico conformado por viviendas vernáculas construidas con materiales y técnicastradicionales. La propuesta de ampliación parte de los siete iconos de arquitecturareligioso-civil y se expande tomando elementos de la arquitectura doméstica queconfigura el territorio. A lo largo del recorrido se evidencia la estrecha relación de laarquitectura vernácula con el entorno. Las construcciones tradicionales a lo largo delcamino, son el testimonio de la historia local y de las costumbres populares. El trabajopresenta estrategias para mantener los rasgos que caracterizan la identidad local a lolargo del camino del adobe en la provincia de Catamarca, ampliando el recorrido ypotencializando los beneficios turísticos derivados de esta acción. Conservar,preservar y fortalecer los elementos que lo conforman y sus características, tienden ala sustentabilidad de la identidad local.

The fumigant and repellent activity of aliphatic lactones against Pediculus human us capitis (Anoplura: Pediculidae) Toloza, Ariel Ceferino; Zygadlo, Julio Alberto; Mougabure Cueto, Gastón Adolfo; Zerba, Eduardo Nicolás; Faillaci, Silvina Mabel; Picollo, Maria Ines New alternative insecticides are necessary for the chemical control of head lice. In this study the fumigant knockdown time 50% (KT50) and repellency index (RI) of three aliphatic lactones was compared with two essential oils and DDVP, against permethrin-resistance Pediculus humanus capitis from Argentina. In the fumigant assay, none of the lactones were effective compared to the highest activity of eucalyptus (KT50 15.53 m). In the repellency test, the three lactones were equally or more effective (RI ranging from 60.50 to 76.68) than the positive control (piperonal). These lactones are promising as head lice repellents.

Familia, comercio y redes sociales : Dos familias a fines del período colonial Quiñonez, Maria Mercedes En este artículo nos centramos a fines del período colonial para analizar las trayectorias de Domingo Antonio Patrón y Francisco Manuel Costas, comerciantes que desde su llegada a la ciudad de Salta, en el último tercio del siglo XVIII, se insertan en la sociedad local y conforman redes de relaciones y vínculos en distintos circuitos económicos. Este estudio de caso nos permite recuperar, desde otra escala de análisis, la estructuración del grupo de los comerciantes, que constituyen a fines de la colonia una elite periférica o secundaria, y sus múltiples relaciones con la elite local tradicional, en una sociedad en transición. Además, nos permite ver los distintos caminos del ascenso social y económico en la sociedad tardocolonial; la permanencia de valores como el linaje y la propiedad de la tierra para la elite más tradicional, como los comerciantes que arriban en el período borbónico logran insertarse en ese entramado social y el papel que la riqueza– derivada del comercio– adquiere en esta sociedad. Las dos trayectorias analizadas presentan patrones diferentes de comportamiento de los comerciantes salteños, a fines del período colonial.