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Artificial Neural Networks and Machine Learning – ICANN 2021 - - Bog - Springer Nature Switzerland AG - Plusbog.dk

Mobilities in India - Bhaswati Mondal - Bog - Springer Nature Switzerland AG - Plusbog.dk

Mobilities in India - Bhaswati Mondal - Bog - Springer Nature Switzerland AG - Plusbog.dk

This book presents commuting as a new paradigm in mobility studies in the context of global south. It delves into suburban train commuting in Eastern India. The book interprets commuting not only as a means to attend work but also as a process producing kinetic event-space infused with different mobile practices, which is not determined by their locational fixity, rather can be cognized. It analyses the role of suburban train commuting in the metropolitan expansion of Kolkata, and the transformation of rural space into urban. The significant contribution of the book lies in explaining commuters’ experiencescape and the production of spatial fluidity in time capsule through commuting. It also explores the subjective reality of gendered commuting. The book uses a trans-disciplinary research design, blending quantitative and ethnographic research methods. The area selected for the empirical research is the Howrah-Bardhaman Main Railway Line (108 km), the first suburban railway line in Eastern India. Commuters originating from three adjacent districts of Purba Bardhaman, Hooghly and Howrah took part in this research. Besides the commuters, non-commuting passengers and hawkers in the train were also interviewed to understand the diverse perceptions of the process of commuting. This book may be considered as a reference book for mobility studies, transport studies, urban geography and regional planning.

DKK 967.00
1

The Origin of a New Progenitor Stem Cell Group in Human Development - Kjeld Mollgard - Bog - Springer Nature Switzerland AG - Plusbog.dk

The Origin of a New Progenitor Stem Cell Group in Human Development - Kjeld Mollgard - Bog - Springer Nature Switzerland AG - Plusbog.dk

This book presents an overview of a new group of progenitor stem cells. Their origins were originally detected in light- and electron microscopical sections of plastic embedded human embryonal and fetal organs. The distribution of these cells can result in a large quantity of ectopic stem cells. The observation of these ectopic stem cells leads us to postulate the existence of a basic wave of stem cell progenitors. This process proceeds earlier and independently from germ cell migration. This first wave of progenitor stem cell migration initially reaches the peri-aortal AMG-region ( A ortal- M esonephric- G onadal region). From here, some of these progenitor cells enter the aorta, are distributed through the vascular system and become the embryonal stem cells (reserve cells) in many peripheral tissues. A second part delivers progenitor cells for the adrenal ''anlage''. Within the peripheral Zona definitiva of the adrenal cortex the progenitor cells multiplicate and subsequently leave the adrenal cortex through a gate of the capsule. The progenitor cells arrive at the pre-aortal sympathic plexus (''second brain''). Within the plexus ganglia they form new organ-like clusters, the paraganglia. In a second process the progenitor cells (Chromaffine cells) enter sympathetic nerve bundles. Here an ''axonal migration'' starts, which guides the progenitor cells to several peripheral organs. During this migration process the stem cells develop into their final state. In the adrenal cortex the ingrowing nerves guide the stem cells to the adrenal medulla. In the pancreas the ingrowing nerve fibers guide the stem cells to the islets. These newly detected stem cells represent a specific developmental step which is found only in humans.

DKK 816.00
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