Descargar ebook de C S Santos | Descarga Libros Gratis

Dictyostelids

Autor: Maria Romeralo , Sandra Baldauf , Ricardo Escalante

Número de Páginas: 259

Since their discovery in 1869, the dictyostelids have attracted the attention of scientists in a wide variety of fields. This interest has stemmed from their peculiar lifestyle and developmental properties, which were shaped by the evolutionary forces that generated multicellularity during eukaryotic evolution. More recently, the dictyostelids have gained attention due to the striking similarities found at the genomic, cellular and biochemical levels with human cells, which has propelled the species Dictyostelium discoideum to become a model system for biology and medicine in many laboratories. This book covers the latest advances in our knowledge of these extraordinary organisms with topics spanning from their evolutionary history, ecology and diversity to the recent discoveries regarding their cellular and molecular biology.

The Chemical Trade Journal and Oil, Paint and Colour Review

Número de Páginas: 484

Conducting and Magnetic Organometallic Molecular Materials

Autor: Marc Fourmigué , Lahcène Ouahab

Número de Páginas: 199

For several years, the two parallel worlds of Molecular Conductors in one hand and Molecular Magnetism in the other have grown side by side, the former essentially based on radical organic molecules, the latter essentially based on the high spin properties of metal complexes. Over the last few years however, organometallic derivatives have started to play an increasingly important role in both worlds, and have in many ways contributed to open several passages between these two worlds. This volume recognizes this important emerging evolution of both research areas. It is not intended to give a comprehensive view of all possible organometallic materials, and polymers for example were not considered here. Rather we present a selection of the most recent research topics where organometallic derivatives were shown to play a crucial role in the setting of conducting and/or magnetic properties in crystalline materials. First, the role of organometallic anions in tet- thiafulvalenium-based molecular conductors is highlighted by Schlueter, while Kubo and Kato describe very recent ortho-metalated chelating ligands appended to the TTF core and their conducting salts. The combination of...

Gel Electrophoresis

Autor: Sameh Magdeldin

Número de Páginas: 516

As a basic concept, gel electrophoresis is a biotechnology technique in which macromolecules such as DNA, RNA or protein are fractionated according to their physical properties such as molecular weight or charge. These molecules are forced through a porous gel matrix under electric field enabling uncounted applications and uses. Delivered between your hands, a second book of this Gel electrophoresis series (Gel Electrophoresis- Advanced Techniques) covers a part, but not all, applications of this versatile technique in both medical and life science fields. We try to keep the contents of the book crisp and comprehensive, and hope that it will receive overwhelming interest and deliver benefits and valuable information to the readers.

The Furniture Gazette

Número de Páginas: 778

Corynebacterium diphtheriae and Related Toxigenic Species

Autor: Andreas Burkovski

Número de Páginas: 302

Corynebacterium diphtheriae is the classical etiological agent of diphtheria and the type strain of the genus Corynebacterium. While diphtheria of the respiratory tract became rare with the introduction of vaccination programs in industrialized countries, even today several thousand cases per year are reported to the World Health Organization. This shows that diphtheria is not completely eradicated and that reservoirs exist. The book summarizes the latest advances made in understanding C. diphtheriae and the closely related species Corynebacterium ulcerans and Corynebacterium pseudotuberculosis. Topics addressed are genomics of toxigenic corynebacteria, host-pathogen-interaction, detection, surveillance and treatment as well as application aspects.

Advanced Technologies in Vascular Neurosurgery

Autor: Erol Veznedaroglu

Número de Páginas: 251

For the first time in the history of medicine, advances in technology have outpaced our ability to apply them in the clinical setting. With the likelihood of rapid change in the healthcare arena, a more critical question emerges in the adoption of new technology, which is what should we be doing with it. The brain remains the last frontier in medicine where we still lack a full understanding of its function and vast neural network. This allows for a perfect union of technology and discovery to contribute to better outcomes and develop cures for disorders of the nervous system. The ability to access virtually every area of the brain via the cerebrovasculature has never been more important. This text presents new technological advances in a comprehensive and balanced way. As we have learned countless times in modern medicine, new is not always better and in fact may be deleterious. The ability to assess newer techniques in a way that is always in the patient's best interest is the ultimate goal. Leaders in the field of vascular neurosurgery discuss new technologies as well as their controversies, from neurointervention and embolic protection devices to robot-assisted endovascular...

El ABC del cáncer colorrectal

Autor: Ivonne Salcedo Sullk

Número de Páginas: 544

El cáncer colorrectal es una de las principales neoplasias a nivel mundial y regional. En breve estará compitiendo con el cáncer de mama y el cáncer próstata en incidencia, y a mediano plazo con el cáncer de pulmón en mortalidad. Esto será una realidad a menos hagamos algo diferente. A menos que empecemos por aplicar lo que ya sabemos, y que busquemos lo que no. Es por esto que, en un esfuerzo por estar a la vanguardia tanto a nivel tecnológico como asistencial, en el Centro Médico ABC se han realizado varios eventos relacionados con esta enfermedad. Se ha buscado un espacio para la discusión de casos y para la revisión de los fundamentos de la patología, cómo prevenir la enfermedad o detectarla antes, afinar el abordaje diagnóstico, revisar las nuevas estrategias terapéuticas, saber personalizar las opciones de tratamiento sistémico, todo lo anterior con una fuerte convicción de la necesidad del trabajo multidisciplinario que requiere cada paciente. Es en este ambiente de academia en donde surge el buscar plasmar la información más relevante y actualizada posible en un texto de fácil lectura y en la manera más concisa, si es que la idea es siquiera posible....

Chitosan-Based Nanoparticles for Biomedical Applications

Autor: Charles Oluwaseun Adetunji , Michael K Danquah , Jaison Jeevanandam , Daniel Ingo Hefft , Sharadwata Pan , Tabassum Asif Khan

Número de Páginas: 658

Chitosan-Based Nanoparticles for Biomedical Applications explores the use of chitosan-based nanoparticles as a sustainable solution for the development of improved therapeutic and diagnostic techniques. A range of biomedical applications is reviewed, including treatment against highly resistant bacteria and parasites; tissue regeneration; drug delivery, and more. Moreover, the application of chitosan-based nanoparticles for the effective delivery of hormones, vaccines, phytochemicals, nutraceuticals, and their application in immobilization of enzymes is also discussed in detail. This book provides a state-of-the-art overview for materials scientists, pharmaceutical scientists, and researchers with an interest in the development of novel materials for therapeutics. - Provides a comprehensive overview of chitosan-based nanoparticles, from extraction, synthesis and characterization to biomedical applications, clinical trials and toxicological considerations - Covers a range of biomedical applications, including nutraceuticals, wound healing, antimicrobial treatment, cancer therapeutics, and more - Utilizes an interdisciplinary approach, combining materials science, biochemistry, and...