Added phosphorus availability and re-distribution in both natural and cultivated vertisols

The fates of both native and added phosphorus were studied in a Leptic Hapludert, by Hedley´s fractionation method. The objectives of this study were to: a) assess the reaction of a natural grassland and a cultivated grassland in a Vertisol with added P by fertilization; b) to study the association between inorganic and organic P labile, moderately labile or non-labile forms with P availability for ryegrass growth; c) to test whether ryegrass growth may reflect the effect of a release of P from the soil with the incubation. Soil samples were taken from: a) Natural soil and, b) Cultivated soil that had been fertilized with 120 kg ha-1 yr-1 of TSP. In the laboratory, one group of samples was fertilized with P (0-200 mg P kg-1) and then incubated 25 days at 28 oC. The other group was also fertilized with P but was not incubated. After P fractionation,, ryegrass was grown in a greenhouse 45 days and the dry yield of shoots was measured. Inorganic labile P forms increased with the level of added P in both soils, and these forms were closely associated with ryegrass growth. The inorganic resistant P forms also increased with the level of added P in both soils, but more P was removed from the incubated samples suggesting that part of the added P was redistributed during the incubation. For both soils, the organic labile P decreased with the level of addition in the incubated samples but increased in the non-incubated samples. The organic more resistant P forms did not differ between the natural and cultivated soil and did not show a consistent distribution with added P or incubation. This suggests that these P forms had little influence on P availability in short or medium periods of reaction between soil and P.Fil: Fernandez Lopez, Carolina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales; Argentina; Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias; Argentina;Fil: Mendoza, Rodolfo Ernesto. Museo Argentino de Ciencias Naturales; Argentina

Review: The Role Of Hyperleptinemia In Chronic Degenerative Diseases

Leptin is a protein that belongs to the family of cytokines, it’s mainly produced by adipose tissue and its main function is to inform the nervous system about the amount of such tissue present in the organism, it also participates in the regulation of the neuroendocrine function and in the control of food intake; however, this molecule can also act in other tissues because their receptors are present in them. It has been identified that abnormal values of this protein can lead to have or aggravate some pathologies, such as cardiovascular, inflammatory, cancer, etc; since leptin is considered as a hormone that has proliferative, mitogenic, antiapoptotic and proinflammatory activity. Hyperleptinemia is a condition presented when leptin levels are above the normal level in the bloodstream (1-15 ng/ml) usually caused by physiological disorders such as obesity. Hyperleptinemia has been associated with several chronic degenerative diseases, where it has a strong relationship with the molecular basis of these diseases, either by direct action on the tissue or by its chemotactic ability to attract other molecules involved in the development of the disease. Because of these, abnormal levels of leptin in the body can be considered as a marker of disease, as described in this review

Proceso de producción en la empresa tabaco cuba-nica, Estelí año 2012

El tema de este trabajo es el análisis delproceso de producción en la empresa tabacos cubanica s.a.El propósito de esta investigación es analizar los métodos de producción utilizados por la empresa Industrial, tabacos cubanicas.a, del departamento de Estelí, durante el segundo semestre del año 2012. Por lo tanto es necesario primero determinar los conceptos básicos de proceso de producción para poder enfocar cada procesoyasídescribir las fases del proceso de Producción de purosy conocer los métodos de control de calidad utilizados en el proceso de producción. A su vez, se proponen nuevas alternativas para el aprovechamiento de las mermas.Los resultados de la investigación muestran en forma detallada cada una de las fases del proceso de producción determinando que el proceso de fabricación de puros padrón está integrada verticalmente, lo que permite un control total sobre la calidad y consistencia de los puros. El secreto de calidad consistente es el control estricto sobre cada proceso de fabricación desde la plantación selección inicial de las plántulas de tabaco en sus propias granjas, hasta llegar a la rodadura de los puros y los controles finales de calidad. El proceso de fabricación de puros PADRÓN está integrado verticalmente, lo que permite un control total sobre la calidad y consistencia de los puros, El en proceso de despalillado se extraen 67,500 libras de vena, el cual puede ser aprovechado para la fabricación de Tabaco de vena, Insecticida, Ácido cítrico: Papel: Aceites industriales: Proteínas comestibles, Lico

Mining microsatellite markers from public expressed sequence tags databases for the study of threatened plants

Background: Simple Sequence Repeats (SSRs) are widely used in population genetic studies but their classical development is costly and time-consuming. The ever-increasing available DNA datasets generated by high-throughput techniques offer an inexpensive alternative for SSRs discovery. Expressed Sequence Tags (ESTs) have been widely used as SSR source for plants of economic relevance but their application to non-model species is still modest. Methods: Here, we explored the use of publicly available ESTs (GenBank at the National Center for Biotechnology Information-NCBI) for SSRs development in non-model plants, focusing on genera listed by the International Union for the Conservation of Nature (IUCN). We also search two model genera with fully annotated genomes for EST-SSRs, Arabidopsis and Oryza, and used them as controls for genome distribution analyses. Overall, we downloaded 16 031 555 sequences for 258 plant genera which were mined for SSRsand their primers with the help of QDD1. Genome distribution analyses in Oryza and Arabidopsis were done by blasting the sequences with SSR against the Oryza sativa and Arabidopsis thaliana reference genomes implemented in the Basal Local Alignment Tool (BLAST) of the NCBI website. Finally, we performed an empirical test to determine the performance of our EST-SSRs in a few individuals from four species of two eudicot genera, Trifolium and Centaurea. Results: We explored a total of 14 498 726 EST sequences from the dbEST database (NCBI) in 257 plant genera from the IUCN Red List. We identify a very large number (17 102) of ready-to-test EST-SSRs in most plant genera (193) at no cost. Overall, dinucleotide and trinucleotide repeats were the prevalent types but the abundance of the various types of repeat differed between taxonomic groups. Control genomes revealed that trinucleotide repeats were mostly located in coding regions while dinucleotide repeats were largely associated with untranslated regions. Our results from the empirical test revealed considerable amplification success and transferability between congenerics. Conclusions: The present work represents the first large-scale study developing SSRs by utilizing publicly accessible EST databases in threatened plants. Here we provide a very large number of ready-to-test EST-SSR (17 102) for 193 genera. The cross-species transferability suggests that the number of possible target species would be large. Since trinucleotide repeats are abundant and mainly linked to exons they might be useful in evolutionary and conservation studies. Altogether, our study highly supports the use of EST databases as an extremely affordable and fast alternative for SSR developing in threatened plants

Molecular diagnostics in uro-oncology.

Research on molecular diagnostics in uro-oncology goes along with the development of complex emerging techniques, ranging from the application of next generation sequencing (NGS) platforms to archi..

Estudio de mejora de los procesos del área logística de la empresa América Móvil Perú S.A.C. durante los años 2015 al 2019 enfocados a la reducción del gasto total de operación

En el año 2015 el entorno por el que atravesaba la empresa América Móvil Perú S.A.C. era de alta competencia la cual generó una guerra de precios que afectó a los operadores de telecomunicaciones reduciendo drásticamente sus niveles de rentabilidad. Bajo esta coyuntura, la empresa venía perdiendo puntos de EBITDA de manera dramática y al no encontrar el remedio por la vía de recuperar los ingresos, inició una búsqueda de opciones o proyectos en cada área que se plantearan como uno de los objetivos más importantes de cada una en el año en curso y los venideros. En el año 2011 América Móvil Perú (Claro) se había fusionado con la empresa Telmex Perú, del mismo grupo empresarial, proveedor de servicios fijos de telecomunicaciones. Como parte de esta fusión, y posterior absorción, Claro hereda de Telmex un predio de 35 000 m2 ubicado en la avenida El Sol del distrito de Villa El Salvador. En este predio funcionaban los almacenes de la empresa Telmex y esta operación era administrada por un tercero. Es así que, desde el área de logística, que incluía la administración de los almacenes y la distribución, se presenta a la dirección general un proyecto de ahorro consistente en dejar las instalaciones físicas de la empresa Ransa en la ciudad de Lima y trasladar todos los inventarios almacenados en ella a un nuevo almacén que la empresa debiera construir en el predio de Villa El Salvador. Esta propuesta traería el ahorro de 3 millones de dólares anuales que era el costo que para Claro representaba Ransa en Lima. Adicionalmente, serían revisados todos los procesos de almacenamiento y distribución encontrándose oportunidades que fueron aprovechadas para su mejora con los consecuentes ahorros que estas significaron. La inversión requerida para la construcción e implementación de ese almacén fue de 3 000 000 de dólares. Es decir, el CAPEX reemplazó al OPEX en la búsqueda del objetivo. Los gastos totales de logística que, en el año 2014, habían alcanzado a ser aproximadamente 104 000 000 de soles terminaron el año 2019 en un monto de gasto total de 53 000 000 de soles, como resultado de las mejoras implementadas.During the year 2015, the environment surrounding America Movil Peru S.A.C. was characterized by high competition which generated a price war that affected all telecommunications operators and reduced drastically their levels of profitability. Under these circumstances, the company had been losing EBITDA points dramatically. Not being able to find the remedy through the income recovery option, America Movil initiated a search of options and projects within each department, that would become the main focus of each team during the ongoing year and the years to come. In 2011 America Movil Peru (Claro) merged with Telmex Peru, company owned by the same enterprise group, telecommunications fixed services supplier. As a result of this merge, and later absorption, Claro inherits from Telmex a property of almost 35 000 sqmts located at Avenida El Sol in the district of Villa El Salvador, where Telmex warehouses were operating managed by a third-party vendor. For this reason, the logistics department, whose duties included warehouses administration and distribution, proposed to the general management a savings project consisting of removing all inventories in the Ransa facilities and relocating them in a new warehouse that Claro would build at the newly obtained property in Villa El Salvador. This proposal would bring annual savings of about 3 000 000 US dollars that was the cost that Ransa represented to Claro in Lima operation. Additionally, all warehousing and distribution processes would be reviewed finding in them improvement opportunities that were put into effect with the consequent savings they provided. The required investment for the construction and implementation of this warehouse was 3 000 000 US dollars. That means that OPEX was replaced by CAPEX in search of the objective. The total logistics expenses, that at the end of the year 2014 had reached 104 million soles, became a total of 53 million soles by the end of the year 2019, as a result of all the implemented improvements

Ejecución y cierre de proyectos de inversión pública en la Gerencia Territorial Huallaga Central Juanjuí, 2022

La presente investigación tuvo como objetivo general determinar la relación de la Ejecución de Inversión Pública y Cierre de Proyectos de Inversión en la Gerencia Territorial Huallaga Central Juanjuí, Gobierno Regional de, San Martín – 2022. El tipo de estudio fue básico, diseño no experimental, alcance descriptivocorrelacional y corte transversal. La población se vio conformado por un total de 34 colaboradores y la muestra estuvo representado por 32, la técnica e instrumento de recolección de datos fueron la encuesta y cuestionario. Los resultados demostraron que los niveles de cada variable se encontraron en una categoría de nivel medio de 50% y 41% respectivamente. Por otra parte, las dimensiones de gobierno (decisión), de administración (ejecución) y de asesoría (coordinación) determinaron relación positiva alta con el cierre de proyectos de inversión con un sig. Bilateral < 0.01. Concluye que la variable ejecución de inversión pública tiene una correlación positiva alta (Pearson = 0.860) con un p valor = 0,000 menor que 0,01 con el cierre de proyectos de inversión en la Gerencia Territorial Huallaga Central Juanjuí 2022. Esto hace referencia que mientras se registren mejoras en la ejecución de inversión pública, el cierre de proyectos determinará resultados positivos

Uropathologists During the COVID-19 Pandemic: What Can Be Learned in Terms of Social Interaction, Visibility, and Social Distance

This article is made available for unrestricted research re-use and secondary analysis in any form or by any means with acknowledgement of the original source. These permissions are granted for the duration of the World Health Organization (WHO) declaration of COVID-19 as a global pandemic