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Search Results: 1 - 10 of 8526 matches for " Verónica Lema "
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Criterios de selección en los procesos de manipulación vegetal: el aporte de la etnobotánica a la interpretación de restos arqueobotánicos de Cucurbita sp
Lema,Verónica S;
Darwiniana , 2009,
Abstract: in this paper, an ethnobotanical-ethnoarchaeological study of different local landraces of cucurbita maxima subsp. maxima, cucurbitaceae, was carried on. the aim was to evaluate if different qualitative and quantitative seed characters of these local landraces, as well as those which came from plants resulting from cultivation or husbandry, get together or not in different morphotypes which materially reflect the diversity locally recognized, as well as local practices. the construction of these morphotypes is proposed as a way to recognize local landraces and different forms of man - plant interactions in archaeobotanical samples. domesticated plants are the result of actions derived from selection criteria socially built and transformed, therefore they can constitute different morphotypes which act as carriers of social meanings. for this reason we believe that an ethnoarcheological ethnobotany which generates models to contrast in paleoethnobotanical work will be a good option. macroscopical morphological descriptors commonly used in archaeobotany were employed together with new micromorphological ones. it was concluded that quantitative micromorphological characters are the most adequate ones to create morphotypes which correspond with locally recognized landraces and with husbandry practices locally developed upon vegetable populations.
CRITERIOS DE SELECCIóN EN LOS PROCESOS DE MANIPULACIóN VEGETAL: EL APORTE DE LA ETNOBOTáNICA A LA INTERPRETACIóN DE RESTOS ARQUEOBOTáNICOS DE CUCURBITA SP
Verónica S. Lema
Darwiniana , 2009,
Abstract: En este trabajo se realiza el estudio etnobotánico-etnoarqueológico de diversos cultivos locales de Cucurbita maxima subsp. maxima, Cucurbitaceae. El objetivo es comprobar si los caracteres cuantitativos y cualitativos de las semillas procedentes de los mencionados cultivos, así como también de plantas resultantes de prácticas de cultivo o cuidado, se agrupan o no en morfotipos diferenciales que reflejen materialmente la diversidad localmente reconocida y los distintos comportamientos involucrados. La generación de dichos morfotipos se propone como una vía para explorar si es factible reconocer cultivares locales y distintas formas de relación hombre - planta en muestras arqueobotánicas. Las plantas domesticadas son el producto de la puesta en práctica de criterios de selección socialmente construidos y por lo tanto susceptibles de constituir morfotipos diferenciales que operen como portadores de significados sociales. De allí que podamos hablar de una etnobotánica etnoarqueológica generadora de modelos a contrastar en el trabajo paleoetnobotánico. Se aplicaron los descriptores morfológicos macroscópicos comúnmente empleados en paleoetnobotánica y arqueobotánica para el estudio de semillas de Cucurbita sp., así como también un conjunto nuevo de descriptores micro morfológicos. Se constató que los caracteres cuantitativos micro morfológicos son los que mejor sirven para crear morfotipos que se corresponden con los cultivares localmente reconocidos y con las prácticas de cultivo o cuidado ejercidas sobre las poblaciones vegetales.
Circulación de Bienes y Patrones de Descarte en la Estancia Iraola
Marco Antonio Giovannetti,Verónica Lema
Comechingonia Virtual : Revista Electrónica de Arqueología , 2007,
Abstract: At the actual woods of la plata has been found the precise location of Old Estancia, once under the ownership of the Iraola family, establishment that functioned previously to the foundation of the capital in 1882. An interesting pit of discarded material was found in the lands that belong to the La Plata Observatory and was excavated nearly in its totality. At the pit it was possible to find a broad variety in ergology, and the remainings of daily consumption materials were found (food remainings for example) as well as work tools and different kinds of silverware from those times. In this work are presented the results of the analysis of the materials gathered, with a special emphasis in the day-to-day practices and the habits of the people who finally discarded the materials archaeologically recovered. At the same time there is an attempt to establish the possible relationship between the materials and their origin (especially with the silverware), to make inferences on the consumption habits of the rural establishments of the XIX century elite.
Explotación de recursos vegetales silvestres y domesticados en Neuquén: implicancias del hallazgo de restos de maíz y algarrobo en artefactos de molienda del holoceno tardío
LEMA,VERóNICA S; DELLA NEGRA,CLAUDIA; BERNAL,VALERIA;
Magallania (Punta Arenas) , 2012, DOI: 10.4067/S0718-22442012000100013
Abstract: this paper presents the results obtained from the analysis of grinding artefacts recovered in aqui-huecó (3.700 ap) and michacheo (1.860 a?os ap) archaeological sites from the neuquen province. such analysis involved the identification of plant microremains adhered to their surfaces. results show processing of prosopis sp pods in both sites and of zea mays grains in michacheo. this last site also has ceramic sherds, therefore at ca. 2.000 ap there was a broadening of the technological base together with food resources. analysis of archaeological contexts point to the association of these artefacts and the burial of adult female individuals along late holocene. bioanthropological evidence show an increase in the presence of caries and a reduction of dental wear around 2.000 a p, which might have been associated to the incorporation of new resources and technology, although the stable isotope analysis suggest the absence of diets rich in c4 plants -such as corn- among these populations.
La variable tiempo en la caracterización del conocimiento botánico tradicional
Pochettino,María L; Lema,Verónica S;
Darwiniana , 2008,
Abstract: the traditional botanical knowledge (tbk) is defined as a cumulative "corpus" of knowledge, practices and beliefs about the relationships between the human beings and the vegetal components of their environments. this "corpus" of knowledge is modified by selection processes and is transmitted culturally from generation to generation. in this approach it is demonstrated that the temporary variable occupies an outstanding roll in the conformation of the tbk. nevertheless, considering it as the knowledge shared by a specific human group about local vegetables, it is clear that the knowledge involved in the process of choice, obtaining, processing and consumption, as well as in the local administration, of plant resources, also can be generated by and residing in communities that lack of historical and cultural continuity. from the analysis of two cases (the horticulture in the puna of jujuy, nw of argentina, and suburban areas in buenos aires province) where the temporary depth from the experience is different, tbk can be consider a synthesis of wisdom, that is generated so much from the knowledge generated locally by practice and experimentation, as well as by incorporation of information of other sources, including the scientific knowledge. finally, we extend this analysis to the interpretation of local practices of plant manipulation in archaeology, which reflects cbt in the past.
Explotación de recursos vegetales silvestres y domesticados en Neuquén: implicancias del hallazgo de restos de maíz y algarrobo en artefactos de molienda del holoceno tardío Explotation of wild and domesticated resources in Neuquén: implications of the recovery of corn and algarrobo remains in late holocene grinding artefacts
VERóNICA S LEMA,CLAUDIA DELLA NEGRA,VALERIA BERNAL
Magallania , 2012,
Abstract: En este trabajo se presentan los resultados obtenidos del análisis de artefactos de molienda recuperados en los sitios Aquihuecó (3.700 a os AP) y Michacheo (1.860 a os AP) en la provincia de Neuquén. Dichos análisis consistieron en la identificación de microrrestos vegetales adheridos a sus superficies. Los resultados obtenidos evidencian el procesamiento de frutos de Prosopis sp en ambos sitios y de granos de Zea mays en Michacheo. Este último sitio cuenta además con restos de cerámica, por lo cual hacia el 2.000 AP habría una ampliación de la base tecnológica y de recursos alimenticios. El análisis de los contextos arqueológicos evidencia la asociación entre estos artefactos de molienda y el entierro de mujeres adultas a lo largo del Holoceno tardío. La evidencia bioantropológica asociada se ala un aumento en la presencia de caries y una disminución del desgaste dental a partir de los 2.000 A P, lo cual se asociaría a la incorporación de nuevos recursos y tecnología, si bien los análisis de isótopos estables se alan la ausencia de dietas enriquecidas por el consumo de plantas C4 como el maíz. This paper presents the results obtained from the analysis of grinding artefacts recovered in Aqui-huecó (3.700 AP) and Michacheo (1.860 a os AP) archaeological sites from the Neuquen province. Such analysis involved the identification of plant microremains adhered to their surfaces. Results show processing of Prosopis sp pods in both sites and of Zea mays grains in Michacheo. This last site also has ceramic sherds, therefore at ca. 2.000 AP there was a broadening of the technological base together with food resources. Analysis of archaeological contexts point to the association of these artefacts and the burial of adult female individuals along Late Holocene. Bioanthropological evidence show an increase in the presence of caries and a reduction of dental wear around 2.000 A P, which might have been associated to the incorporation of new resources and technology, although the stable isotope analysis suggest the absence of diets rich in C4 plants -such as corn- among these populations.
LA VARIABLE TIEMPO EN LA CARACTERIZACIóN DEL CONOCIMIENTO BOTáNICO TRADICIONAL
María L. Pochettino,Verónica S. Lema
Darwiniana , 2008,
Abstract: El conocimiento botánico tradicional (CBT) es definido como un cuerpo acumulativo de conocimientos, prácticas y creencias acerca de las relaciones entre los seres humanos y los componentes vegetales de su entorno. Este cuerpo de conocimientos se modifica a partir de procesos de selección y es transmitido culturalmente de generación en generación. En esta clase de abordaje queda evidenciado que la variable temporal ocupa un rol destacado en la conformación del CBT. Sin embargo, considerándolo como el saber compartido por un grupo humano específico acerca de los vegetales locales, se reconoce que ese conocimiento, empleado durante el proceso de elección, obtención, procesamiento y consumo, así como en la administración local de los recursos, puede ser también engendrado por y residir en comunidades que carecen de continuidad histórica y cultural. A partir del análisis de dos casos (la horticultura en la puna juje a y en áreas suburbanas bonaerenses) donde difiere la profundidad temporal de la experiencia, se concluye que el CBT puede considerarse una síntesis de saberes, que se genera tanto a partir del conocimiento engendrado localmente por práctica y experimentación, así como por incorporación de información de otras fuentes, incluyendo el conocimiento científico. Finalmente se proyecta este análisis a la identificación arqueológica de prácticas locales de manejo de poblaciones vegetales, reflejo del CBT en el pasado.
Prevalencia de dislipemia y riesgo cardiovascular elevado en pacientes con artritis reumatoide
Haye Salinas,María Jezabel; Bertoli,Ana M.; Lema,Luis; Saucedo,Carla; Rosa,Javier; Quintana,Rosana; Bellomio,Verónica; Agüero,Santiago; Spindler,Walter; Tamborenea,María N.; Schimid,Marcela; Ceccato,Federico; Sala,José P.; Paira,Sergio; Spindler,Alberto; Soriano,Enrique R.; Pons Estel,Bernardo A.; Caeiro,Francisco; Alvarellos,Alejandro; Saurit,Verónica;
Medicina (Buenos Aires) , 2013,
Abstract: the objectives of this study were to compare the frequency of dyslipidemia (dlp) and the elevated cardiovascular risk between rheumatoid arthritis (ra) patients and a control group, to identify disease-related factors associated with the presence of dlp and to estimate the frequency of ra patients receiving treatment for dlp. this is a cross sectional study that included 409 ra patients and 624 controls. cardiovascular (cv) risk was determined using the framingham score, national cholesterol education program (ncep) and the systematic coronary risk evaluation (score) adapted versions according to the european league against rheumatism (eular) guidelines. dlp was defined according to the adult treatment panel iii (atpiii). the frequency of cv risk was similar in ra patients and controls, except when ncep-eular adapted version for ra was applied (7% vs. 2%; p = 0.00002). a 43% of patients and 47% of controls had dlp (p = 0.15). ra patients with dlp tended to have extra-articular manifestations more frequently (36% vs. 24%; p = 0.01) and higher erythrocyte sedimentation rate (esr) (21 [13-35] vs. 18 [10-30] mm; p = 0.003). ra patients treated for dlp varied between 11% and 32% according to the definition used. patients with ra showed an elevated cv risk only when the ncep-eular definition was used. among ra patients, those with higher esr and the presence of extra-articular manifestations were more likely to show dlp. the vast majority of patients were not receiving treatment for dlp.
Location of Large-Scale Concentrating Solar Power Plants in Northeast Brazil  [PDF]
Vernica Wilma Bezerra Azevedo, Chigueru Tiba
Journal of Geographic Information System (JGIS) , 2013, DOI: 10.4236/jgis.2013.55043
Abstract: Heliothermic electricity generation is gaining popularity in several countries worldwide. In Brazil, this form of energy generation has not yet been explored for large scale projects. However, the country possesses extensive areas with normal and high-intensity direct irradiation and low seasonality factors, particularly in the semi-arid region of the Brazilian Northeast. The region also presents other important features for setting up such plants: proximity to transmission lines, sufficient flatness, non-endangered vegetation, a suitable land use profile low maximum wind speeds, low population density, and more recently, an increase in the demand for local electric energy due to economic growth above the Brazilian average. A Geographic Information System includes a set of specialised resources that allow us to manipulate spatial data, providing quickness and efficiency in the identification of appropriate places for installing solar power plants while also preparing us for future scenarios, with regards to their impacts, costs and benefits. This article presents a study of the optimal location for thermoelectric power plants in the semi-arid region of the Brazilian Northeast on the scale of 1:10,000,000. All provinces with good potential for the implementation of large-scale concentrating solar power plants are identified. Considering that the installed capacity for parabolic cylindrical concentrators in terrains with a steepness of less than 1% is 43.26 MW/km2 for systems without storage and 30.82 MW/km2 for systems with 6 hours of storage, the potential of the southeast region of Piauí alone is huge. Even with the lack of information about the urban areas, terrain continuity, and other variables,utilising only 10% of the identified potential area, or879.7 km2, would result in an installed capacity of 38.1-27.1 GW. This value corresponds to more than 1/3 of the potency of the current Brazilian electric system. If the same calculation is made for the semi-arid region of the Brazilian Northeast, its capacity will be greater than 1000 GW.
Abnormal Succession of Insect Fauna on Pig Carcasses in Tandil (Argentina, Buenos Aires Province)  [PDF]
A. Verónica Trigo, Néstor Centeno
Advances in Entomology (AE) , 2014, DOI: 10.4236/ae.2014.22017
Abstract: This project was an attempt to reconstruct a death in dubious circumstance which happened in December 2002 in Tandil (Buenos Aires Province). Although the body was in open air, the entomological expertise discovered signs of delayed colonization. In this experiment, pig carcasses used as models to reconstruct the case. One was placed in shadow and another in sunlight (control). The hypothesis was that the climate and the topography affect the necrophagous insect succession in a mountain site. The families of Coleoptera found on the baits were: Silphidae, Dermestidae, Cleridae, Histeridae; of Díptera: Calliphoridae, Sarcophagidae; Asilidae; of Hymenoptera: Formicidae, Encyrtidae and Vespidae.
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