To promote fast and accessible service, many organizations and businesses utilize technological or structured systems to create efficient waiting times and receptions. Managerial Approaches Toward Queuing Systems and Simulations provides emerging research on the various aspects of line management structures and organizations. While highlighting the components of queue control, such as attention capacity, quantitative analysis, and serial systems, this book will teach readers about the factors of queue systems that promote effective and efficient line areas and waiting times. This book is an important resource for managers, engineers, and researchers interested in the elements and stages of queuing management.

The studies by Santiago Ram6n y Cajal on astrocytes, and the extense work developed by Pio del Rio Hortega dealing with microglia and oligodendrocytes are with no doubt two important milestones of neurobiology, and specially cf glial research. Since these classical studies, the curiosity for understanding glial cells has continuously grown. During the last two decades, the development of new meth- ods of study, including cell culture techniques and the use of histochemical and immunocytochemical markers, has allowed a remarkable advance in this field. This increasing interest is reflected by the creation of local and international glial networks, the publication of the journal Glia, the celebration of periodic interna- tional meetings and the publication of extensive books focused on glial cells. In February 1997, with the establishment of the Spanish Glial Network, arose the early idea of publishing a compendium of selected work by Spanish glial research teams, which has fmally materialised in Understanding Glial Cel/s, a book whose objective is to present topics of current interest in glial cell biology.

Unlike some other reproductions of classic texts (1) We have not used OCR(Optical Character Recognition), as this leads to bad quality books with introduced typos. (2) In books where there are images such as portraits, maps, sketches etc We have endeavoured to keep the quality of these images, so they represent accurately the original artefact. Although occasionally there may be certain imperfections with these old texts, we feel they deserve to be made available for future generations to enjoy.

The studies by Santiago Ram6n y Cajal on astrocytes, and the extense work developed by Pio del Rio Hortega dealing with microglia and oligodendrocytes are with no doubt two important milestones of neurobiology, and specially cf glial research. Since these classical studies, the curiosity for understanding glial cells has continuously grown. During the last two decades, the development of new meth- ods of study, including cell culture techniques and the use of histochemical and immunocytochemical markers, has allowed a remarkable advance in this field. This increasing interest is reflected by the creation of local and international glial networks, the publication of the journal Glia, the celebration of periodic interna- tional meetings and the publication of extensive books focused on glial cells. In February 1997, with the establishment of the Spanish Glial Network, arose the early idea of publishing a compendium of selected work by Spanish glial research teams, which has fmally materialised in Understanding Glial Cel/s, a book whose objective is to present topics of current interest in glial cell biology.

This volume constitutes the refereed proceedings of the 14th International Conference on Hybrid Artificial Intelligent Systems, HAIS 2019, held in Leon, Spain, in September 2019. The 64 full papers published in this volume were carefully reviewed and selected from 134 submissions. They are organized in the following topical sections: data mining, knowledge discovery and big data; bio-inspired models and evolutionary computation; learning algorithms; visual analysis and advanced data processing techniques; data mining applications; and hybrid intelligent applications.

Este trabajo caracteriza al Sistema Renina Angiotensina en pacientes mexicanos con enfermedad cardiovascular mediante el analisis del polimorfismo Insercion/Delecion del gen de la enzima convertidora de angiotensina y la expresion de receptores de Angiotensina II en tejido vascular. Utilizando la prueba de la reaccion en cadena de la polimerasa y el analisis con Inmunohistoquimica pudimos identificar la distribucion genotipica y evaluar la expresion de receptores AT1 y AT2 vascular en pacientes con enfermedad cardiovascular. Varios factores de riesgo tradicionales que se relacionan con enfermedad cardiovascular se asociaron con aumento en la expresion de receptores AT1 y AT2. La suma de factores de riesgo se relaciono con la mayor expresion de receptores. El genotipo DD se asocio con mayor expresion de receptores AT1 y AT2 vascular en pacientes con enfermedad cardiovascular. Estos resultados sugieren que la regulacion del sistema renina angiotensina esta influenciada tanto por factores geneticos como no geneticos y permitiria identificar pacientes que pueden beneficiarse mas de farmacos que bloquean de manera directa los receptores AT1 de angiotensina.

Nuestros pacientes presentan una composicio n corporal desequilibrada, pese a tener un peso y un IMC dentro de los rangos normales. Los pacientes presentan hipercolesterolemi; siendo la ingesta de grasas adecuada, se impone la necesidad de realizar prevencio n de las enfermedades ateroembo licas en estos pacientes. La composicio n corporal de los pacientes VIH positivos fue diferente entre los hombres y las mujeres: los varones presentaron ma s masa magra y las mujeres ma s masa grasa.La ingesta energe tica fue insuficiente en nuestra poblacio n, no estando influenciada por el diagno stico de SIDA, aunque fue ma s adecuada en los pacientes en tratamiento con inhibidores de la proteasa. Los pacientes en tratamiento con antirretrovirales de gran actividad presentaron un mejor estado nutricional y una ingesta diete tica ma s adecuada, siendo ma s efectivos en lograrlo los inhibidores de la no nucleo sido transcriptasa inversa frente a los inhibidores de la proteasa.El eje hipota lamo-hipofisario presento alteraciones con una disminucio n de la testosterona provocando un hipogonadismo."

This international collection provides a comprehensive overview of cutting-edge research on autism spectrum disorders (ASDs) by well-known experts in the field, stressing the importance of early diagnosis and a good working relationship between parents and professionals. The contributors cover a wide range of aspects of ASDs, from early assessment techniques, neurodevelopment and brain function to language development, executive function and genetic research. They explore how individuals with ASDs think and give evidence-based guidance on how to handle difficulties with social interaction and language development using appropriate interventions. New Developments in Autism will be of great interest to professionals, researchers, therapists, parents and people with ASDs.