für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The book provides a complete information regarding the Micropropagation of plants and the role of molecular technique-PCR in characterizing the variations created under invitro culture of these plants. It provides an insight, how micropropagation can be used as a tool for the conservation of the germplasm of critically endengered medicinal plants like that of Artemisia amygdalina. Furthermore it could be used as a guide by the researchers of this particular field. ····· 1036192374
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Many constituents in our diet are chemopreventive agents in animal models. Experiments with cultured cells revealed various potential mechanisms of action . Epidemiological observations show lower cancer rates in people whose diets are rich in fruits and vegetables . This has led to the theory that diets rich in fruits and vegetables contain a high concentration of antioxidants which are thought to be chemopreventive.Evidence based studies have also revealed that many debilitating ailments such as alzheimers disease,schizophrenia etc show a remarkable increase in free radicals.It may then be conceived that addressing oxidative stress may be a prerequisite to preventing or even attenuating many degenerative diseases.Experiments in animal models have revealed that there is a positive corellation between the oxidative state of the body and degenerative diseases. ····· 1036192073
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This study was designed to evaluate the antimicrobial resistant salmonellae isolates from man and animals. The purposes of this study were to determine the incidence of antimicrobial resistance and multiple-drug resistance (MDR) in Salmonella from human and animals. Animals can probably be the source of multiple resistant strains for human. Misuse of antibiotics, irrational selection, aberrant dosage, has unfortunately helped in the emergence of multiple-drug resistant strains of salmonella. The prevalence of salmonella infection was studied. Ten antimicrobial drugs were used for sensitivity assays. Chemotaxonomy was used by free lipid analysis. Molecular analysis by 16S rDNA Sequencing pattern was used for the characterization. RAPD-PCR molecular techniques were used to detect the mechanism of accumulation drug resistance. The development of genetic techniques has permitted positive identification antimicrobial resistant genes. These techniques applied to the diagnosis and control of the antimicrobial resistance. These recent developments in biotechnology have become crucial to the scientist, antimicrobial manufacturer, businessmen, and veterinary and human medical fields. ····· 1036191918
····· lezzter Preis 59.00€ ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This monograph comprises two units which highlights the production of amylase and alkaline phosphatase from biological sources such as soil, microbes & plants. It also explain the basic features of sources with their overview on review and methodological presentation with details. This book has several fundamental scope of biological sources in the context of their use in the production of amylase and ALP which already have many application in various industries. ····· 1036191913
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This book has 6 chapters which includes conceptual and fundamental study on the production of secondary metabolites such as penicillin, cephalosporin, lysine, tryptophan, penilcillin acylase & cellulase by using microbes as well as the use of microbes as bio-factories. It also includes the catchy role of these industrially important and eco-friendly microbes used as biofertilzers and biopesticides. ····· 1036191912
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The copper containing oxygen transport protein hemocyanin (Hc) is vital for the survival of many animals belonging to arthropodan and molluscan phyla. The functional units (FUs), which constitute a Hc molecule, each contain an active site with a pair of Cu atoms able to reversibly bind molecular oxygen. Phenoloxidases (POs), from which Hcs probably evolved, possess a similar active site with paired Cu atoms but, in contrast to Hcs, they oxidize phenolic substrates. Reports indicate that due to the active site similarity Hcs can be induced to carry out PO activity. That s why Hc became an interesting subject to explore its latent PO activity. Another important property of Hc is the immunogenic potency, which has led to therapeutic applications. This incited us to further study the antigenicity of Hc and the origin of this property. This research work exploited several analytical and separation techniques concerning protein purification-characterisation, measurement of the PO activity, analyses of the glycopeptides and detection of immunogenicity (ELISA). ····· 1036191860
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In this book, the possibilities for segmentation of Helacyton gartleri cell line from their background as well as from each other in digital images from phase contrast time lapse microphotography are tested, combined and improved. Proper segmentation is one of the main issue of image evaulation and steps order differs from task to task, depending on input images. Basic terms and methods of image processing and analysis are introduced in this work. For reaching information about cell sphericity, several approaches are applied, including filtration, details emphasizing, and segmentation techniques. Sequence of selected algorithms and journey for searching them is described in details. ····· 1036191614
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Phytochemicals showing antioxidant properties are largely recognized as beneficial for human health and disease prevention. Cuba is well-known for having a rich flora with a high percentage of endemic species it is considered as an interesting reservoir of plant species for searching bioactive metabolites. In this study, we investigated the antioxidant potential of three endemic varieties of Erythroxylum alaternifolium A. Rich, var. alaternifolium, var. parvifolium, var. suborbiculare and three native Cuban species of the genus Pluchea: P. carolinensis (Jacq.) G. Don, P. odorata (L.) Cass. and P. rosea Godfrey. Additionally, the major antioxidant compounds were identified and quantified from the most promising species. ····· 1036191577
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray This book provides a compact knowledge about practical applications of bioinformatic approaches to understand the structure and function of a protein- Rhodesian which is found in visual pigment of eye and responsible for controlling night vision. Its structure has been predicted by comparative homology modelling and model evaluation through various tools. The electron density maps of retinal isomers and structure of rhodopsin intermediates were analyzed by structure superimposition. On the basis of structural analysis of thirteen mutations for Autosomal Dominant Retinitis Pigmentosa, one of the missense mutation has been targeted to propose a drug to cure night blindness. The molecular docking technique has also been used to predict ligand interactions with rhodopsin. It is hoped that this will provide new insights into structural and functional exploration of proteins which will be helpful in understanding various vital phenomena like protein activation and inhibition, drug interactions and protein signaling. ····· 1036191556
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The cholesterol content of the cell membrane shows an important role for physical properties of the membrane and also affects the functions of some ion channels. This thesis focuses on how the cholesterol content of the cell membrane effects the temperature activation of the TRPV1 ion channel. TRPV1 is a temperature activated ion channel, which acts as a heat pain sensor in peripheral nervous system and also plays an important role in inflammatory pain sensing (heat hyperalgesia). Results showed that untreated cells were activated at about 42°C which confirmed the results from other studies, whereas the activation temperatures of cholesterol depleted and enriched cells were both significantly increased. This suggests that the effect of cholesterol on temperature activation of TRPV1 ion channel either might be direct or indirect. ····· 1036191465
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The search for cancer cure from natural products have been practiced for over a century. For the last 25 years, El-Asmer and co-workers were pursuing the search for potential therapeutic agent or new drug models from snake venoms. This work was presented for partial fulfillment of M.D. in Biochemistry. A cytolytic, non-antigenic, 8 kDa, glycoprotein (Fraction VIb) was isolated from crude Naja nigricollis nigricollis spitting cobra venom. This protein is stable at different pH values and different temperatures up to 100ºC, lethal to mice, with LD50 1.83 mg/kg. Small doses induced cytolytic effect on hepatocellular carcinoma, colon cancer and breast cancer cells while larger doses caused hemolysis of red blood cells. Thus, this protein can be considered a target compound for further researches as it can be a potential bio-therapeutic agent for cancer treatment, or a model for new drug design. ····· 1036191392
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Lectins are carbohydrate-binding proteins of non-immune origin that agglutinate cells or precipitate glycoconjugates.Based on evolutionary and structural relatedness, seven lectin families have been distinguished, of which legume lectins are the best characterized. Lectins typically constitute a large fraction of the total protein in most leguminous seeds and plant storage tissues where they play an important role in several defense mechanisms. A lectin from the seeds of Indigofera heterantha, member of family leguminosae was isolated, purified, partially characterized and its antimicrobial activity evaluated. The lectin is a homotetramer with a molecular weight of about 70 KDa. The lectin shows a reasonable temperature stability and is stable in the pH range of 2-9. It demonstrates a remarkable antibacterial activity against E.coli, K.pneumonia, S.aureus, and B.subtilis and also inhibits the growth of phytopathogens Aspergillis niger, Aspergillis oryzie and Fusarium oxysporum. These results point out that future findings on applications of lectins isolated from leguminous plants can be of great importance for clinical microbiology and possible therapeutic applications. ····· 1036191356
für 80.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Desde un punto de vista químico, el proceso de fusión entre la membrana celular y la envuelta viral acontece tras superar varias barreras energéticas a lo largo de dicho proceso hasta llegar a la formación de un poro fusogénico. En el caso del virus de la inmunodeficiencia humana de tipo 1 (VIH-1) es la glicoproteína 41 (gp41) la que permite al virus introducir su cápsida en la célula huésped. Hoy en día, los científicos no saben exactamente cómo varios trímeros de gp41 son capaces de realizar todo el proceso de fusión viral. Se postula que varias partes de la gp41 están involucradas en el mecanismo de fusión. En este libro se describe una metodología novedosa y sencilla para elucidar regiones membranotrópicas de proteínas. Se muestra un estudio detallado de las regiones de gp41 con alta afinidad por distintos tipos de membranas biológicas. Posteriormente, se hace un estudio biofísico detallado de dos regiones de gp41 (NHR y LLP3/3), para caracterizar la interacción lípido-proteína. En la última parte del trabajo, se explica la metodología empleada y resultados obtenidos de la búsqueda de inhibidores peptídicos para bloquear la entrada del virus en la célula. ····· 1036191229
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Los compuestos naturales bioactivos de origen marino se conocen poco. Se estima que existen por lo menos 750,000 especies biológicas en los mares y océanos y se han descrito sólo alrededor de 300,000. Sin embargo, éstas representan un amplio reservorio de moléculas interesantes y potencialmente útiles en diversas aplicaciones. Las plantas y los animales marinos han sido forzados por el ambiente a enfrentar condiciones difíciles como la alta concentración de sales, extremas temperaturas, alta presión, variaciones en la disponibilidad de oxígeno, de alimento, etc. Para sobrevivir, han desarrollado procesos bioquímicos que les hace poseer rutas metabólicas únicas, que en algunos casos, no se encuentran en los organismos terrestres. Como resultado, las especies marinas poseen proteínas con actividad catalítica especial (biocatalizadores) que puede ser aprovechada por el hombre en el desarrollo de aplicaciones para la medicina, la bioingeniería o la biotecnología. En la presente obra se describe la investigación realizada para caracterizar la actividad de algunos de ellos. ····· 1036191060
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Industrially important enzymes have a unique place in our lives. Exploiting industrial enzymes, a number of products have been developed and there became enormous improvement in the processes and performances of the existing products. In this monograph, an industrially important enzyme, xylanase has been studied. Xylanase has been isolated from an alkalano-thermophilic bacteria. The alkalano-thermophilic property of the enzyme may be exploited for industrial use. Therefore, it has potential for exploitation in various industries viz. paper and pulp industries, food industries, biofuel industries etc. An alkalano-thermophilic bacteria has been isolated capable of secreting xylanase under highly alkaline conditions. Xylanase having alkaline optimum pH is industrially important especially in paper pulp industries. The characterization of xylanase has been carried out which may be exploited for industrial use. Technique of solid state fermentation for production of xylanase has been optimized. The parameters optimized may be exploited for industrial production of the enzyme. ····· 1036189295
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Crohn`s disease is a chronic inflammatory disease of the intestine in humans, with no known cause. Although Mycobacterium avium subspecies paratuberculosis (MAP), the etiologic agent in Johne`s disease has been purported to play an etiologic role in Crohn`s disease, this causal link is still under debate. In the present study, MAP was analyzed by utilization of biochemical and epidemiological methods and a relationship was found between MAP and Crohn`s disease in humans. ····· 1036189051
für 53.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Ground legume, cereal and stevia (Stevia reaudiana Bertoni) leaves were used to formulate five types of food items (food-1, food-2, food-3, food-4 and food-5) with decreasing rate of cereal (wheat) and increasing rate of Legume (soybean) and vice-verse. A control food was also formulated. The objectives of this work were to evaluate the proximate composition of food and to study the effects of these foods on the growth, body weight and serum lipid of rats. Each rat was fed the formulated food 15 g per day throughout the experimental period. Weight gain was measured in two days interval. This study showed that it is possible to reduce the lipid profile of rat through cereal and legume based formulated food added with stevia. These findings might be helpful for men to reduce cardiovascular disease as a naturally occurring therapeutic agent. ····· 1036188844
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray In chemistry, physics, biophysics, biochemistry, biomedicine, bioinformatics, applied mathematics and theoretical physics, Molecular dynamics (MD) simulating physical movements of atoms and molecules is widely applied. Amber and Gromacs etc are very popular and practical MD packages. This book applies these packages to biomolecules and materials. It provides comprehensive MD materials and methods to put MD into actions. This book clearly has a value to MD simulation staff (in research or teaching) in the fields of chemistry, physics, biophysics, biochemistry, biomedicine, bioinformatics, applied mathematics and theoretical physics. This book fully illuminates MD application to prion proteins from many points of view. The author was awarded numerous world-wide impacts and fame for the successful MD application. Prion diseases can be caused by the body s own proteins not requiring either DNA, RNA, or both they are `structural conformational` diseases so very proper to be studied by MD technologies. Rabbits, dogs and horses are reported to be immune to prion diseases. The author using MD technologies preliminarily revealed some surprising secrets from rabbits against prion diseases ····· 1036188586
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray As well as other processes, in order to occur photosynthesis requires boundary membranes with both structural and functional roles. From the introduction of the fluid mosaic model (1972) knowledges on structure/function/dynamics of biomembranes largely evolved. Membranes are now described as microcosms where lipid-protein interactions give rise to well distinguished functional bilayer domains. Here experimental evidences are provided for interactions between the lipid cardiolipin (CL) and an integral photosynthetic protein, the Reaction Centre (RC) from purple bacteria. As minimum unit able to convert light into chemical energy, RC has been the first integral protein ever crystallised and structurally resolved (1984). Recent progresses (2000s) revealed the presence of CL and other lipids bound to the protein surface. In this view, results from laser spectroscopic studies of RCs reconstituted in micelles/liposomes are interpreted at molecular level according to an original kinetic model of the CL-RC system. Investigating the consequences of lipid-RC interactions may offer advantages in the approach to eukaryotic Photosystem complexes, successfully crystallised only in last years. ····· 1036188571
für 61.20€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Quantum chemistry has emerged in the last two decades as a versatile discipline with its considerable advantages in chemical and material sciences. Concurrently, with the advent of Nanotechnology and the increase in fossil fuel combustion and exhaust emissions, the importance of studying toxic molecules from a sub-molecular view is becoming increasingly important. This book describes the theory behind quantum mechanics, the most used methods of calculation and presents quantum toxicological examinations of nanoparticles and molecular carcinogens that are frequently encountered in polluted natural, rural and urban environments. By the unique blend of quantum sciences and toxicology, the reader is trained in revealing and understanding the toxic properties of molecules from a quantum chemical point of view. ····· 1036188569
für 71.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Cellulosic wastes could be turned into several value-added products through bioconversion. This work examined four practical ways of transforming the vast amount of cellulosic wastes in our environment into a valuable resource. Being a natural habitat of cell-wall hydrolyzing organisms, cellulosic wastes are good sources of viable cellulolytic organisms. These are organisms that produce enzymes that degrade plant cell-wall polymers. The wastes can therefore serve as a source of low-cost fermentation substrates for producing industrial enzymes needed for the saccharification of cellulosic materials. It could also be used as cheap carbon and energy source for selective media used in cultivating cellulolytic organisms. Such uses will undoubtedly reduce the cost microbial media and also the production cost of cellulolytic enzymes. The waste cellulosic materials can also be enzymatically hydrolyzed into simple sugars using cellulolytic enzymes such as cellulases and xylanases. Hydrolysis of plant cell wall polysaccharides into simple sugars is the primary step needed for the conversion of cellulosic materials into bulk chemicals such as ethanol and biogas. ····· 1036188528
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray Rising human population throughout the world has detrimental effects on life supporting system on earth. Though considerable progress has been made on the contraception among females, progress on males are still limited. Numerous plants have been used historically to reduce fertility in male and modern scientific research has confirmed contraceptive potentials of Abrus precatorius seed extracts. Effects of different treatments on various male reproductive endpoints and contraceptive efficacy were evaluated. Histopathology revealed that marked atrophy of the seminiferous tubules characterized by disruption of the germinal epithelium and atrophy of the leydig cells as well as epididymal sperm counts were reduced drastically. Hormonal assay revealed a significant decrease in serum level of testosterone, FSH and LH resulting in suppressed spermatogenesis of male rats. These effects lead to the reduction of pregnancy rate of untreated fertile female rats while mated with the extract-treated male rats. The results showed that A. precatorius seed extract causes suppression of spermatogenesis and fertility, thereby suggesting the potential of this plant in the regulation of male fertility. ····· 1036188400
für 44.10€ kaufen ···· Rheinberg-Buch.de - Bücher, eBooks, DVD & Blu-ray The life of the modern civilization is associated with everyday use of the relatively new family of materials which are called synthetic plastics. Apart from all the beneficial properties such as wide range of applications or production costs these materials also reveal one serious drawback. They are extremely resistant and therefore, they tend to accumulate in the environment which causes serious environmental issue accumulation of solid waste. Potential solution of this problem could be an enhancement of biodegradability of these materials. Generally there are two approaches how to reach this goal. The first is to modify the properties of synthetic polymers in order to increase their biodegradability. The second strategy is to utilize biodegradable polymers which can be found in nature and which have similar mechanical properties as the synthetic ones. This book deals with both strategies, because it focuses on biosynthesis of bacterial polyesters polyhydroxyalkanoates as well as on the modification and subsequent biodegradation of synthetic polyurethanes. As authors hope, this can be another small step towards our sustainable future. ····· 1036188389· 1 · ::::: · 7 ·· 8 ·· 9 ·· 10 ·· 11 ·· 12 ·· 13 · ::::: · 16 ·
Affiliate Marketing
AdHoc MeldungenAffiliate & PublisherAdvertiser & MerchantAcademyAntwortenArtikelsucheAdventskalender
AffilitivProduktdatenPreisvergleich
