····· lezzter Preis 26.10€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray El crecimiento en la población, incremento en sus demandas y cambio de uso de suelo están originando una disminución de las áreas forestales aptas para la producción. Aunado a lo anterior, la producción de semilla de varias especies es cíclica y otras ostentan una baja energía germinativa. Frente a este escenario, la Biotecnología representa un potencial como una forma alternativa a la propagación vegetativa y preservación de los recursos genéticos forestales. El presente libro contiene un panorama de los principios teórico del proceso de cultivo in vitro de tejidos vegetales. En capítulos contiguos, se expone estudios de caso exitosos relativo a la caulogénesis y callogénesis en especies nativas Chilenas de interés forestal. Esta obra constituye una contribución a la comunidad científica y profesionales del campo, con la finalidad de disponer de resultados que cimientan el potencial de las herramientas Biotecnológicas. ····· 1036122685
····· lezzter Preis 62.10€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Para este trabajo, se evaluó las perspectivas de la producción de carne de bovino bajo sistemas sustentables y/u orgánicos en el trópico mexicano. Para ello se generó el Índice de Cumplimiento de la Normatividad Orgánica (ICNO), el cual permitió identificar el potencial de conversión de ranchos que utilizan sistemas de producción convencionales para transitar a sistemas de producción alternativos. Para el trabajo se utilizó la base de datos del Inventario Ganadero Tabasco 2000 y se realizaron 50 encuestas a ganaderos de Misantla, Veracruz. En Tabasco, de acuerdo con el ÍCNO, el 7.1% de los productores pueden lograr la conversión entre sistemas de producción en un plazo no mayor a 2 años, mientas que para el 76.0% este cambio podría llevar hasta 4 años. Para los ganaderos veracruzanos, el 52% de ellos pueden convertir sus unidades de producción en un plazo no mayor a dos años, mientras que el 48% restante lo podría hacer en un plazo de hasta 4 años. México cuenta con un gran potencial para desarrollar sistemas de producción pecuarios sustentables y/u orgánicos, sin embargo, habría que generar canales de comercialización alternativos para este producto cárnico diferenciado. ····· 1036122598
····· lezzter Preis 62.10€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray En los últimos años, las instituciones financieras solicitan que el perfil de un proyecto debe ir acompañado de un estudio de factibilidad ya que éste recopila datos relevantes sobre la parte técnica, económica y operativa. En base a éste estudio la financiera toma la decisión si procede o no su financiamiento. Este libro ofrece una metodología para elaborar un Estudio de Factibilidad, el cual incluye los siguientes capítulos: Aspectos generales, estudio de mercado, aspectos técnicos del proyecto, organización, inversión y financiamiento, presupuesto, análisis financiero, evaluación económica y financiera, evaluación de impacto social ambiental, sostenibilidad, estrategias de marketing, conclusiones, recomendaciones, bibliografía y anexos. Se escogió como actividad básica del estudio el engorde de ovinos, por ser una de la especies más criada por las familias que habitan en los bosques secos de la Costa Norte del Perú. El libro será de mucha utilidad para los profesionales que elaboran proyectos de inversión con el propósito de presentar estudios de factibilidad a las entidades financieras que se lo requieran. ····· 1036122474
····· lezzter Preis 26.10€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray La salinidad es uno de los parámetros más importantes para el conocimiento de las fluctuaciones de las diferentes masas de masas de agua y de la distribución de los recursos marinos por este motivo se ha recopilado información obtenida frente a la costa peruana entre los años 1960 y 2008, elaborándose promedios mensuales, estacionales y anuales así como series de tiempo que serán de gran utilidad a los oceanógrafos, biólogos marinos y de todas aquellas personas que les interese la investigación oceánica. También se describen las condiciones anómalas por efecto de eventos cálidos (El Niño) o eventos Fríos (La Niña) que se presentan irregularmente y que condicionan favorable o desfavorablemente la presencia de los principales recursos pesqueros, originando también inundaciones o sequías en la parte continental, tal como ocurrió en los años 1982-1983 y 1997-1998, por citar los dos eventos de mayor intensidad en las últimas décadas. ····· 1036122354
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Desarrollar la sensibilidad del sujeto por el entorno en que habita constituye uno de los principales retos de la educación ambiental, por lo que en la presente obra, se caracterizan los aspectos que deben ser atendidos durante el proceso pedagógico destinado a ese fin. Contiene también reflexiones con relación al condicionamiento que impone la cultura a las transformaciones que se pretenden alcanzar en la personalidad y al rol que puede desempeñar el arte cuando se pone en función de la consumación de tales objetivos. Se presentan, finalmente, dos experiencias obtenidas en el ámbito de la educación escolarizada. ····· 1036122077
für 35.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray La protección de áreas naturales implica la resolución de situaciones y temas complejos, que involucran a instituciones, intereses públicos y privados, leyes y políticas. En El Salvador estos se han desarrollado y complicado a lo largo de siglo y medio de historia. Se brinda un resumen histórico y una descripción detallada de las experiencias recientes en materia de legalización de áreas naturales protegidas de tenencia pública en El Salvador así como una discusión general sobre los aspectos básicos del manejo y conservación de estos espacios en el largo plazo, basado en las experiencias personales del autor. El libro expone de manera concisa y clara los hechos y razonamientos, brindando datos que ayudan a sustentar la construcción de un modelo práctico y flexible para el tratamiento de la legalización, protección y manejo de las áreas naturales, no sólo en El Salvador, sino también en otros países con similares características y necesidades. ····· 1036122053
für 26.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Se evaluaron diferentes parámetros: Se muestrearon tres playas, determinándose en las mismas: coliformes termotolerantes, Escherichia coli, estreptococos fecales y enterococos fecales. Las concentraciones de los nutrientes detectadas, permiten considerar el agua de buena calidad. Los coliformes termotolerantes y Escherichia coli, en la bahía, cumplen con los límites establecidos en las normativas de referencia. Las playas El Rail y La Boca se consideran aptas desde el punto de vista bacteriológico para el baño. La Llanita no posee la calidad bacteriológica requerida. Las aguas de la bahía se clasifican como ligeramente eutróficas de acuerdo con las concentraciones de clorofila-a fitoplanctónica. Se evidencia una ligera contaminación por petróleo solamente en las estaciones 5 y 7. Se analizaron un total de 18 fuentes terrestres que representan los principales focos contaminantes al ecosistema de la bahía de Puerto Padre, con fundamental incidencia de la actividad urbano industrial, siendo el CAI Antonio Guiteras la fuente principal de contaminación. Los sistemas de tratamiento del sector industrial son casi nulos o totalmente ineficientes. ····· 1036121816
für 62.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray En la coyuntura del presente siglo, en la que el ejercicio de la docencia y la investigación se resuelven en un complejo entramado de tendencias y orientaciones cienciológicas, urge orientar nuestras miras hacia aquellos criterios que, por su ecumenismo y universalidad, garanticen una orientación lógica de la pluralidad, desde perspectivas dialécticas de integración donde se pondere a una reflexividad cognoscitiva y procedimental, garante de la interdisciplinariedad como corolario de estos esfuerzos. En aras de contribuir con este propósito se procede al desentrañamiento teórico-metodológico del modo de actuación del docente en sus prospecciones conceptuales y fenoménicas, elementos que sentaron las bases para una propensión coherente de la actividad pedagógica hacia espacios formativos correlacionales en los que el Modo de Actuación interdisciplinario de los docentes regule su proyección y práxis educativa. El anális crítico sobre temas de interdisciplinariedad, la visión de los autores y su aplicación en las Ciencias Naturales, permitió elaborar un Modelo Didáctico que contribuyó al perfeccionamiento del Modo de Actuación de los docente desde una perspectiva interdisciplinaria. ····· 1036121739
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Rheumatoid arthritis (RA) is a chronic autoimmune disease affecting ~1% of the worldwide population. Recent biochemical and genetic evidence has strongly suggested that a dysregulated protein arginine deiminase (PAD) activity, in particular protein arginine deiminase 4 (PAD4) contributes to the onset and progression of RA. PAD4 is a transcriptional co-regulator that catalyzes the calcium-dependent conversion of specific arginine residues in proteins to citrulline. The role of PAD4 in RA leads to be a potential therapeutic target for the treatment of RA. Through insilico structure based drug design for PAD4 of Homo sapiens, the amide derivatives confirmed the binding affinity with the active sites of PAD4. The molecular docking analysis showed H bonding interactions between active sites of PAD4 and atoms of lead 3 and lead 8 of amide derivatives. ····· 1036121421
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Automatic three-dimensional (3-D) segmentation of the magnetic resonance (MR) scans is a challenging problem that has received an enormous amount of attention lately. Quantitative analysis of signal intensity on MRI changes and their correlation with clinical finding provide important information to diagnose of many neurodegenerative and psychiatric diseases. After the enhancement of images and brain extraction, brain segmentation is the next level. As a result, brain segmentation is of great interest to many researches. Expectation maximization algorithm has been extensively used in a variety of medical image processing applications, especially for detecting human brain disease. ····· 1036121127
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Synthetic insecticides has long been involved in causing fetal diseases to human beings as well as cattle. Importance of biological control of insect pests is aan environment friendly approach. With advances in biotechnology, recombinant bacteria and other organisms are being developed for better control of insect pests. Bacillus thuringiensis (BT) holds a central place among biocontrol agents. BT produces parasporal crystal proteins (Cry toxin) during sporulation phase of its growth. These toxins have defined spectra of toxicity to the target insects only, without doing any harm to friend insects. More than 260 Cry toxins have been reported so far. Of which Cry2 is toxic to lepidopteran as well as dipteran insects. When enters the insect midgut, the toxin gets activated by proteases present in the insect midgut, make holes in the gut, as a result insect loses homeostasis and eventually die without feeding. ····· 1036121060
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This book determines the production and economic potential of farming the African Catfish (Clarias gariepinus) within the Lake Victoria Basin, Uganda. The African Catfish is among the indigenous catfishes of the region. The assessment was done based on an analysis of local resources using the sustainable livelihood framework to ascertain what the real opportunities and constraints were for farming the African catfish in both qualitative and quantitative terms. The sustainable livelihoods framework makes personal, household or community assets the centre of its analysis, rather than starting with poverty or problems, as in a needs based analysis recognizing resources as potential assets, notably: human, natural, financial, social and physical. A participatory approach was used in data collection and preliminary analysis of primary data. Key factors notably input availability, markets, prices were then incorporated using multivariate analysis to design experiments that gave provided data for the bio-economic analysis and modelling of promising production options. ····· 1036120351
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Halophilic enzymes especially esterase & lipases have a wide and varied industrial & biotechnological application in the present era. The ability of the halophilic bacteria to grow and produce enzymes over a very wide range of salinities make them very attractive for research and for the isolation of novel enzymes with unusual properties. Screening of novel extreme halophilic microorganism is very important for the production of novel enzyme. The bacterium Marinobacter Hydrocarbonoclasticus PSTZ used for the present study was previously isolated in our laboratory. Further work was carried out to purify, amplify & sequence carboxylesterase gene from strain PSTZ. The use of lipases & esterases for a variety of biotechnological applications is rapidly & steadily increasing. Many novel lipase genes are still to be identified & enzymes with new and exciting properties will be discovered. In parallel, the combination of optimized lipases with improved reaction conditions will lead to novel synthetic routes, allowing the production of high-value chemicals & pharmaceuticals. The new era of biocatalysts that has just started will undoubtedly see lipolytes as the biocatalysts of the future. ····· 1036120288
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Growing consumer consciousness regarding role of diet in health, has resulted in increased demand for healthful foods. Egg is one of the widely consumed and well accepted dietary items across the globe. With ever increasing demand for convenience and shelf stable health food, egg products could be the answer to the consumer s need. The fact that egg has high quality proteins formed the basis for developing first of its kind a novel texturized egg albumin and egg yolk cube. The book explores the possibility of using egg albumen and yolk separately for preparing a product that would suffice the modern demands yet at the same time also considers several traditional cuisine preparation steps. The present book is very useful both for academic researchers, nutritionists and industries alike. The book describes the usefulness of egg in preparing ready-to-use products. ····· 1036120264
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In February 2009, the European Union Directive 2008/101/EC was approved, clarifying how emissions from the aviation sector will be included in the European Union Emissions Trading Scheme (EU ETS). According to this directive, starting from 1st January 2012, all aircraft operators (nearly 4000), flying to or from any airport in EU territory will be included in EU ETS. This dissertation aims to provide qualitative and quantitative information about the consequences for aviation industry to be included in European Union Emissions Trading Scheme (EU ETS) for the first trading period (2012). In this study, with empirical data, a scenario approach has also been used to quantify the potential 2012 CO2 emissions from aviation industry. So that, a scale of the possible total financial burden that aviation sector will be under for their CO2 emissions in the first trading period of EU ETS (2012) is calculated. According to the calculations, 2012 CO2 emissions of the flights covered under EU ETS can vary from 231.242 million tonne of CO2 to 277.036 million tonne of CO2 and the cost of 2012 CO2 emissions for the aviation sector can be between 967.47 million Euro and 2.54 billion Euro. ····· 1036120217
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Soil-borne wheat mosaic virus (SBWMV), the type species of the genus Furovirus, contains a bipartite positive-stranded RNA genome (RNA1 and RNA2) encapsidated in separate rod-shaped particles. The vector that transmits this virus in soil is a plasmodiophoraceous protozoan, Polymyxa graminis. The optimum temperature for the propagation of this virus is 17°C, and systemically infected plants can recover from the virus if the temperature increases. The inoculation of infectious in vitro transcripts of RNA1 and RNA2 into barley mesophyll protoplasts showed that the CP most abundantly accumulated at 17°C, but was undetectable at 25°C (Ohsato et al., 2003), suggesting that replication of the virus is temperature sensitive. Here, the mutations occurred in the MP gene of the variants that could propagate under higher temperatures (25°C) were examined. It is suggested that these mutations are involved in changing of MP conformation/activity to make virus adapted to the new condition (higher temperature) for cell-to-cell and long-distance movement. ····· 1036119984
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Industrial Applications of Lipases encompasses the potential of enzymes in industries having main focus on enzyme lipases.It includes scope and basics of lipase, lipase reaction mechanism, properties and potential of enzyme lipases in industries. In detail it includes the various applications of lipase in different industries including food, paper, leather, detergent, textile industry etc. Students, researchers and industrial microbiologist engaged in the production, processing and applications of lipases in various industries would find this book useful. ····· 1036119821
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The thesis embodies the histomorphological changes in the numbers, types, groupings and secretory cycles of neurosecretory cells of the brain of Prodenia litura, particularly pupal period. In the development of a Lepidopteran, the major stages are the larvae, prepupa, pupa and adult. Pupation is the crucial period wherein maximum changes take place for transformation of a larva into an adult. The numbers and arrangement of neurosecretory cells in the larval brain are quite distinct from those in the adult brain of Prodenia litura. During pupation period, transition of neurosecretory sysem of larval brain to adult brain has been studied. During larval period fully formed neurosecretory cells are observed in a 5th instar stage, but gradually they get modified and transformed during inactive larval, prepupal and pupal stages into neurosecretory cells of the adult. Therefore, extensive studies on neurosecretory cells of the brain have been made at specific intervals of all stages, viz., active larva, fully fed inactive larva, prepupa and pupa. Fully formed neurosecretory cells of adult have been studied in just emerged adult. ····· 1036119735
für 55.71€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Dostizheniya nauki poslednih let pozvolyajut reshat` voprosy chelovecheskoj civilizovannosti na novom urovne, privlekaya k jetomu resheniju ne tol`ko jetnografo-arheologicheskie metody, no i razlichnye estestvennonauchnye podhody. V nastoyashhej rabote delaetsya popytka issledovaniya odnoj iz sushhestvennyh problem razvitiya chelovechestva - problema vzaimodejstviya cheloveka s okruzhajushhim ego mirom zhivotnyh, kak dikih, tak i domashnih. Vybor predmeta issledovaniya byl opredelen, s odnoj storony, ogromnoj vazhnost`ju, kotoruju imel perehod k proizvodyashhemu hozyajstvu, a zatem pojetapno k sovremennomu obshhestvennomu stroju, a s drugoj - nalichiem ogromnoj faktologicheskoj bazy dlya izucheniya jevoljucii skotovodstva i ohoty na raznyh stadiyah nashej civilizacii. ····· 1036119726
für 55.71€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The city of Lahore like other ancient cities was developed along the bank of a river, i.e. the River Ravi, currently a trans-boundary river between India and Pakistan. Therefore, since the development of Lahore city, its sewage and waste water was discharged into its adjacent river. However, the population explosion, urbanization, unplanned industrialization, broad scale use of synthetic fertilizers and household chemicals consequently deteriorate the water quality of the River Ravi due to significant discharge of wastewater from the metropolitan city of Lahore into it. As a result, the contaminated water of the Ravi not only affects the aquatic ecosystem of the river but also worsen its water used downstream for the irrigation, livestock, aqua-culture and recreational purposes. It is therefore essential to estimate the pollution load from the urban city entering into River Ravi in order to prevent and control the degradation of water quality of the River Ravi and help the researchers, decision makers, and the academics to evaluate the cause and pollution status of the most polluted river of Pakistan. ····· 1036119676
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Excessive intake of alcohol can lead to obesity and an increase in the Body Mass Index (BMI). Presently we investigated whether both alcohol and obesity could act together to increase the risk factors of liver biomarkers. Weight related problems occurs due to alcohol intake depend on the quantity and quality of alcohol and frequency by which it is consumed. Serum ALT (P 0.002), GGT (P 0.001) and ALP (P 0.001) activities in moderate drinkers were higher than those in abstainers. Mean ALT activity is higher in obese and over weight in alcohol consumers and abstainers as compared to mean AST activity in the same groups. ALP activity was increased with BMI in moderate drinkers. ALP activity in abstainers shows weak relation in relation to BMI. In the present analyses between BMI and drinking status, liver enzymes effect in population as a dependent variable. Significant main effects of BMI (p0.05) were noted for all enzymes while drinking status was associated with ALT, GGT and ALP. ALP showed a marked difference among AST, ALT and GGT with regards to alcohol consumption and BMI. In conclusion, moderate alcohol use raises activity of hepatic enzymes with increasing BMI. ····· 1036119572
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray RecQ helicase is a member of helicase superfamily2 the enzyme consists of multiple conserved domains viz,the catalytic core domain (helicase domain and RecQ C-terminal domain) and the HRDC domain.Structures of the individual domains for E.coli are available in the PDB but,complete structure of the protein is not available.We have tried to construct the structure of E.coli RecQ protein by homology modeling and docked the protein to a DNA substrate.Molecular dynamics(MD) simulations of RecQ protein and its complex with DNA were carried out to understand the mode of action of protein.MD simulation of RecQ was found to be stable over a 5ns simulation time suggesting that the structure generated by homology modeling is a stable and favourable conformational state.The RecQ-DNA complex structure simulation displayed interesting dynamics suggesting that the protein has inherent flexibility which manifests itself as domain movements upon substrate binding.Our simulation suggests that DNA binding induces the catalytic core region to open up by hinge motion.We propose that this movement draws energy from ATP hydrolysis and helps translocate the enzyme along the DNA backbone like an inchworm. ····· 1036119473
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray A study was undertaken to address the indigenous knowledge of herbal use in birth control in rural and tribal areas in Bangladesh. Total 152 persons (local herbalists, birth attendants and other knowledgeable person for birth control by herbal medicine) were interviewed. A number of 62 plant species belonging to 38 families were identified for the use of birth control. Highest score in rarity was recorded for seven species, i) Abrus precatorius ii) Andrographis paniculata, iii) Ferula asafoetida iv) Gloriosa superba v) Piper nigrum, vi) Plumbago indica and vii) Plumbago zeylanica. In vitro regeneration was studied in five species, Mimosa pudica, Piper longum, Gloriosa superba, A brus precatorius and Leonurus sibiricus. Artificial seeds were produced by encapsulating shoot tip and nodal segments of Mimosa pudica with sodium alginate. ····· 1036119343
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray To deliver changes towards sustainability SEA should influence the implementation, rather than the formulation, of strategic initiatives. In this light, SEA follow-up that relates to post-decision activities of SEA and strategies becomes crucial. This book inquires whether SEA follow-up is feasible and relevant and, if so, when and how it can be effective and useful. It proposes and tests a framework to examine, evaluate, and explain the current practice of SEA follow-up based on an e-survey and case studies from England and Canada. The book reveals important explanatory linkages between the follow-up elements, strengths and weaknesses, and problems and benefits derives key messages for advancing the SEA follow-up theory and practice and makes recommendations. The book contends that by tailoring the proposed SEA follow-up framework to a particular strategy-making/realisation process, organisational structure, and context SEA follow-up can be made useful and effective. Moreover, the framework, linkages, messages, and recommendations can help shape or improve SEA follow-up. This book can be used in educational and practical purposes by SEA researchers, students, and practitioners. ····· 1036119218· 1 · ::::: · 4 ·· 5 ·· 6 ·· 7 ·· 8 ·· 9 ·· 10 · ::::: · 11 ·
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