568 research outputs found

    Use of Spineless Cactus (Opuntia ficus indica f. inermis) for Dairy Goats and Growing Kids: Impacts on Milk Production, Kid's Growth, and Meat Quality

    Get PDF
    The objective of this study was to determine the effect of spineless cactus incorporation in food of dairy goats and growing kids on milk production and composition and on kid's growth and meat characteristics. Two experiments were conducted on Tunisian local goats. In the first, 30 females were divided into two groups; goats of Control group were reared on grazing pasture receiving indoor 0.5 kg of hay and 0.4 kg of concentrate. Goats for the second group (Cac-FL) were kept in feedlot and fed cactus ad libitum more 0.5 kg of hay and 0.4 kg of concentrate. In the second experiment, 14 kids were divided into 2 groups receiving 600 g of hay. The Control group received ad libitum a concentrate containing 130 g crude protein (CP) per kg of dry matter. The second group received cactus ad-libitum plus the half concentrate quantity of control one with 260 g CP/kg DM (Cactus). The daily milk production averaged 485 ml for Control group and 407 ml for Cac-FL one. The milk fat content was significantly higher for Control than Cac-FL group. In the second experiment, animals in Control and Cactus groups had similar growth rate. Carcass fat was significantly lower in Cactus than in the Control group. Cactus in the diet was associated with more C18:2 and conjugated linoleic acid as well as a higher proportion of PUFA than Control ones

    Analisis PDRB, Inflasi, Upah Minimum Provinsi, Dan Angka Melek Huruf Terhadap Tingkat Pengangguran Terbuka Di Provinsi Jawa Tengah Tahun 1990-2011

    Full text link
    This study aim to analyze factors which having an effect to open-unemployment level in Central Java Province at 1990 to 2011. Ordinary least squares (OLS) will be used as regression model with the dependent variable, open-unemployment level and four independent variables, that are domestic regional gross product, inflation, province minimum wage, and the number of alphabetist. The result show that province minimum wage and the number of alphabetist influential manifestly and significantly to the open-unemployment level. In future, province minimum wage policy need a depth monitoring, so as to persistent over the market equilibrium and the labor welfare guaranteed. The value of province minimum wage which came near 100% indicate the high education quality of society in that region. This case need a special attention from government to create job demand in formal sector to anticipate the castaway potential resource which is the one of development support

    Secure and Image Retrieval based on Multipurpose Watermarking for Mammography Images Database

    Full text link
    In the cancerology domain, we were brought to make periodic mammography images to monitor tumor patients. Oracle Database Management system (DBMS) is a solution to manage these images with patient's data recorder. Knowing the large size of medical images of mammograms, the Oracle DBMS saves these images outside the Oracle database using external LOBs. The link between these images and Oracle is done through the BFILE. At this level, two problems are raised: the first problem is that access to these images can become impossible because the link is likely to be broken. The second problem is security, the fact that the images are saved outside the Oracle database, they do not benefit from its powerful security. The protection of the integrity and confidentiality of data and patient images are a necessity defended by laws and they must be preserved against any unauthorized access, alteration or destruction. In this paper, we propose the method of reversible watermarking technique based on the difference expansion to resolve these two problems and explore its use in search and retrieval strategy of images.Comment: 28-3

    Numerical method for solving a class of nonlinear elliptic inverse problems

    Get PDF
    AbstractThis paper discusses a method to solve a family of nonlinear inverse problems with Cauchy conditions on a part of the boundary and no condition at all on another part. An iterative boundary element procedure is proposed. The scheme uses a dynamically estimated relaxation parameter on the under-specified boundary. Various types of convergence, boundary condition formulations and effects of added small perturbations into the input data are investigated. The numerical results show that the method produces a stable reasonably approximate solution

    Development of Vertical Shading Parameter Model for Reducing Energy Consumption in Tall Building based on Overall Thermal Transfer Value - A Case Study

    Get PDF
    In tall building, shading design is a configuration that includes geometry, material, and the system. Currently, the design of the shade found for building’s envelope is not only used to improve the thermal performance, but is also required to provide aesthetic value to the appearance of a building. The use of shading design in the form of vertical shade at certain places will provide differences in the acquisition of sunlight for interior spaces. Therefore, by shading design the appearance will certainly affect the thermal performance of the building envelope. This study aims to develop and propose a model that can be used as parameter measures of the effect of shading design variations on the thermal performance of the building envelope. This variation will include shading design concept which applies different vertical shading that covers glass material, the shading width, and the shading angle. This research design includes the calculation of the shade coefficient (SC) and overall thermal transfer value (OTTV) of each variant, followed by using multiple linear regression (MLR) analysis with manufacturer’s SC glass, shading width, and shading angle as the predictor variables. The study is conducted by two parts: designing of vertical shading parameters that affect the value of the SC and determining the thermal performance of the building. The MLR analysis is carried out to obtain a linear equation showing the effect of shading design on thermal performance of the building envelope. Based on the regression analysis result, it can be seen that the manufacturer’s SC of glass has the biggest impact on the OTTV value, while the shading angle has the lowest. With 95.2%-98% of the predictors data can explain the value of OTTV, the model can be used as the tool for designing vertical shading for reducing the energy consumption in the building

    Analyse de la variabilité germinative de la vesce commune sous l’impact d’un stress Ferrique-Cadmique-Salin

    Get PDF
    Ce travail a pour but de voir l’impact de l’application d’une combinaison de stress abiotique sur la germination des graines de vesce commune ainsi que de visualiser les modifications physiologiques et histologiques au niveau des tissus racinaires sous l’influence de ces contraintes. De ce fait, une conduite de germination a été réalisée avec des graines de vesce commune dans différentes situations de combinaisons entre trois types de stress métallique-cadmique-salin et un suivi a été fait en se basant sur des caractères végétatifs bien déterminés. Les résultats montrent bien une nette différence entre les réponses des graines à l’application de stress séparément et entre les combinaisons de stress ainsi qu’une variabilité intra-espèce énorme vis-à-vis de différentes types de contraintes.Mots-clés : vesce commune, stress métallique-cadmique-salin, caractères végétatifs, modifications physiologiques et histologiques

    Genetic structure and demographic history of the endemic Mediterranean scallop Pecten jacobaeus inferred from mitochondrial 16s DNA sequence analysis

    Get PDF
    Estructura genética e historia demográfica de la vieira endémica del Mediterráneo Pecten jacobaeus inferidas a partir del análisis de la secuencia del ADN mitocondrial que codifica la subunidad 16S del ARNr Con vistas a implementar un plan de gestión para las especies cuyas poblaciones están menguando, es fundamental comprender la estructura genética de dichas poblaciones. En el caso de Pecten jacobaeus, los estudios genéticos previos se han limitado a analizar poblaciones situadas en el Mediterráneo occidental (España) y en el mar Adriático (Italia). Para comprobar la presencia de discontinuidades filogeográficas entre las dos cuencas del Mediterráneo, hemos estudiado la variabilidad del gen mitocondrial del ARNr 16S en dos poblaciones de la cuenca oriental (Túnez y Grecia) y la hemos analizado junto con la de las mencionadas anteriormente. Las dos poblaciones estudiadas recientemente compartieron los haplotipos más frecuentes con las otras y no se encontraron indicios de que exista una discontinuidad filogeográfica. Se observó un grado menor de variabilidad genética en relación con el Mediterráneo occidental en las poblaciones del Adriático y el Egeo, pero no en Túnez. Las diferencias significativas observadas cuando se agruparon los datos sobre las frecuencias haplotípicas indicaron la existencia de una cierta diferenciación genética entre las poblaciones de Chioggia (Italia) y Vouliagmeni (Grecia) y las de las otras poblaciones.Understanding the genetic population structure of species going through population decline is primordial in implementing a management plan. In the case of Pecten jacobaeus, previous genetic studies have been limited to populations in the western Mediterranean (Spain) and the Adriatic Sea (Italy). To check the presence of phylogeographic breaks between the two Mediterranean basins, we scored the variability of the mitochondrial 16S rRNA gene in two populations from the eastern basin (Tunisia and Greece) and pooled them with those cited above. The two newly analyzed populations shared the most frequent haplotypes with the other populations and showed no evidence of phylogeographic breaks. We found lower levels of genetic variability in the Adriatic and the Aegean populations, but not in Tunisia, with respect to the Western Mediterranean. Significant differences in pooled haplotype frequencies indicated some genetic differentiation between the pooled Chioggia and Vouliagmeni populations and the other pooled populations.Estructura genética e historia demográfica de la vieira endémica del Mediterráneo Pecten jacobaeus inferidas a partir del análisis de la secuencia del ADN mitocondrial que codifica la subunidad 16S del ARNr Con vistas a implementar un plan de gestión para las especies cuyas poblaciones están menguando, es fundamental comprender la estructura genética de dichas poblaciones. En el caso de Pecten jacobaeus, los estudios genéticos previos se han limitado a analizar poblaciones situadas en el Mediterráneo occidental (España) y en el mar Adriático (Italia). Para comprobar la presencia de discontinuidades filogeográficas entre las dos cuencas del Mediterráneo, hemos estudiado la variabilidad del gen mitocondrial del ARNr 16S en dos poblaciones de la cuenca oriental (Túnez y Grecia) y la hemos analizado junto con la de las mencionadas anteriormente. Las dos poblaciones estudiadas recientemente compartieron los haplotipos más frecuentes con las otras y no se encontraron indicios de que exista una discontinuidad filogeográfica. Se observó un grado menor de variabilidad genética en relación con el Mediterráneo occidental en las poblaciones del Adriático y el Egeo, pero no en Túnez. Las diferencias significativas observadas cuando se agruparon los datos sobre las frecuencias haplotípicas indicaron la existencia de una cierta diferenciación genética entre las poblaciones de Chioggia (Italia) y Vouliagmeni (Grecia) y las de las otras poblaciones

    Clases de lípidos y composición de ácidos grasos en dos copépodos parásitos Peroderma cylindricum y Lernaeocera lusci y sus respectivos peces hospedadores Sardina pilchardus y Merluccius merluccius de aguas tunecinas

    Get PDF
    The present study investigates the detailed lipid classes and their fatty acid (FA) compositions from two parasitic copepods Lernaeocera lusci and Peroderma cylindricum and their respective fish host species Merluccius merluccius and Sardina pilchardus. The lipid classes, including phosphatidylcholine (PC), phosphatidylethanolamine (PE), phosphatidylserine (PS), phosphatidylinositol (PI), triacylglycerol (TAG), wax ester/cholesterol ester (WE/CE), mono-diacylglycerol (MDG), and free fatty acids (FFA) were separated by thin layer chromatography. The results revealed that TAG and PC were the major lipid classes in parasites; while WE/CE and PS were the most abundant in hosts. As for FA composition, C16:0, C18:0, C18:1n-9, C20:5n-3, and C22:6n-3 were recurrently found to be dominant in all lipid classes of the different organisms studied. However, some differences concerning the abundance and the distribution of several FAs were observed. Overall, the obtained results highlighted that despite the quite strong trophic connection between the parasites and their respective hosts, the parasites could be distinguished by specific lipid profiles.El presente estudio investiga en detalle las clases de lípidos y sus composiciones de ácidos grasos (AG) de dos copépodos parásitos Lernaeocera lusci y Peroderma cylindricum y sus respectivas especies de peces hospedadores Merluccius merluccius y Sardina pilchardus. Las clases de lípidos incluyen fosfatidilcolina (FC), fosfatidiletanolamina (FE), fosfatidilserina (FS), fosfatidilinositol (FI), triacilgliceroles (TAG), ceras/ésteres de colesterol (C/EC), mono-diacilglicerol (MDG) y ácidos grasos libres (AGL), que fueron separados mediante cromatografía en capa fina. Los resultados mostraron que TAG y FC eran las principales clases de lípidos en los parásitos, mientras que C/EC y FS eran las más abundantes en los hospedadores. En cuanto a la composición de AG, se encontró de forma recurrente que C16:0, C18:0, C18:1n-9, C20:5n-3 y C22:6n-3 eran dominantes en todas las clases de lípidos de los diferentes organismos estudiados. Sin embargo, se observaron algunas diferencias en cuanto a la abundancia y distribución de varios AGs. En general, los resultados obtenidos destacaron que a pesar de la fuerte conexión trófica entre los parásitos y sus respectivos hospedadores, los parásitos podían distinguirse por perfiles de lípidos específicos
    corecore