Skip to content

Category: Science General

Left-Right Asymmetry in Vertebrate Development (Advances in by M.L. Lopez-Gracia, M.A. Ros,

By M.L. Lopez-Gracia, M.A. Ros,

Externally the vertebrate physique plan offers a bilateral symmetry in terms of the midline. even though, contained in the physique the distribution of the visceral organs follows a really specific development that isn't symmetrical on the subject of the midline. The final 10 years have visible awesome advances in our figuring out of ways the inner asymmetries average of the vertebrate physique are proven and regulated. using diverse improvement types has authorized to discover interesting methods of constructing asymmetry, just like the task of the nodal cilia. a bunch of reports has additionally unravelled the involvement of many genes within the left correct patterning pathway. in accordance with this information the genetic foundation of human laterality defects are commencing to be published. it's a significant problem now to appreciate how these kind of genes keep an eye on left correct improvement in addition to the complicated set of interactions demonstrated among them.

Show description

La quatrième dimension : mathématique et réalité by Rudolf Steiner, Jean-Paul Hornecker

By Rudolf Steiner, Jean-Paul Hornecker

L. a. première partie de ce quantity contient une série de conférences sur los angeles query de l'existence réelle d'une quatrième size. Il est ensuite query de l. a. géométrie des corps à quatre dimensions. l. a. deuxième partie, très développée, regroupe des réponses à des questions sur l. a. géométrie projective, l. a. vitesse de los angeles lumière, les nombres positifs et négatifs, les nombres imaginaires, l. a. 3e loi de Copernic, ainsi que los angeles théorie de los angeles relativité d'Einstein.

Un element n'a aucune size. Un element se déplaçant en ligne droite engendre un phase à 1 size. Un section se déplaçant perpendiculairement à lui-même engendre un carré à 2 dimensions. Un carré qui se déplace perpendiculairement à lui-même donne naissance à un dice à three dimensions. L'étape suivante consisterait à déplacer le dice dans une quatrième measurement perpendiculaire à toutes ses arêtes. On obtiendrait un objet à four dimensions (hypercube). Cet hypercube existe-t-il réellement?

En s'appuyant sur les recherches de certains mathématiciens, Steiner s'efforce de montrer que notre pensée aim est le most popular échelon d'une échelle qui peut s'élever à des hauteurs infinies.

Dans une deuxième partie, Steiner aborde de nombreux thèmes tournant autour de los angeles inspiration de Réalité :
L'espace est-il fini ou infini ?
Qu'est-ce que le temps?
Comment comprendre l. a. théorie de l. a. relativité ?
Où nous mènent les nombres complexes?
etc.

Show description

Principles of Systems by Jay Wright Forrester

By Jay Wright Forrester

This key textual content on procedure dynamics exhibits by way of instance how constitution determines habit. This publication is perfect not only for managers yet for a person drawn to the dynamics of city, ecological, and different structures. It covers suggestions dynamics, versions and simulation, equations and computation, circulation diagrams, details hyperlinks, integration, and extra. Reprinted in 1990.

Show description

The Academic's Guide to Publishing by Dr Rob Kitchin, Dr Duncan Fuller

By Dr Rob Kitchin, Dr Duncan Fuller

''...includes small print reminiscent of examining the proofs, getting ready indexes...every researcher can locate a few priceless info during this textbook.'' -PHOTOSYNTHETICAThis definitive advisor to effectively publishing social technology examine demonstrates that finishing a venture is barely the 1st section of study. Dissemination is the second one section, and it calls for particular talents and information.

The teachers' advisor to Publishing : explains the several ways that study might be disseminated: in journals, books, experiences, the net, renowned media, and meetings; demonstrates how the buildings, practices and methods concerned paintings - making them simply understood and obvious; and situates learn within the greater and altering context of upper Education.

For postgraduates or lecturers within the social sciences The lecturers' advisor to Publishing presents crucial assistance on tips on how to safe a task, tips on how to achieve tenure, find out how to live on examine overview routines, and the way to procure merchandising.

Show description

Advances in Cognitive Sociolinguistics (Cognitive Linguistic by Dirk Geeraerts

By Dirk Geeraerts

Cognitive Sociolinguistics is a singular and burgeoning box of study which seeks to foster research into the socio-cognitive dimensions of language at a usage-based point. Advances in Cognitive Sociolinguistics brings jointly ten reviews into the social and conceptual facets of language-internal edition. All ten contributions depend on an organization empirical foundation within the type of complicated corpus-based thoughts, experimental tools and survey-based examine, or a mixture of those. the hunt for tactics which could properly get to the bottom of the advanced and multivariate dimensions intervening within the interaction among conceptual which means and variationist components is therefore one other attribute of the quantity. when it comes to its descriptive scope, the quantity covers 3 major parts: lexical and lexical-semantic edition, constructional version, and study on lectal attitudes and acquisition. It therefore illustrates how Cognitive Sociolinguistics stories either the difference of that means, and the which means of version.

Show description

Advances in Marine Biology, Vol. 25 by J.H.S. Blaxter (ed.), A.J. Southward (ed.)

By J.H.S. Blaxter (ed.), A.J. Southward (ed.)

Quantity 25 of this authoritative evaluation sequence keeps the excessive typical set via the editors some time past. Marine biologists all over the place have come to worth and revel in the big variety of thought-provoking papers written by means of invited experts.In this quantity are reports of 4 animal teams which span the whole diversity of the marine nutrients chain. The position of parasites in ecology is a growing to be curiosity and the parasites of zooplankton are defined intimately for the 1st time. facets of thegastropods, cephalopods and fish existence also are tested intimately.

Show description

Observing Land from Space: Science, Customers and Technology by Michel M. Verstraete, Massimo Menenti, Jouni Peltoniemi

By Michel M. Verstraete, Massimo Menenti, Jouni Peltoniemi

This quantity deals a huge assessment of the technology and expertise of distant sensing, its coverage implications, and the desires of operational clients within the context of weather swap and environmental degradation over land. a number of the chapters derive from shows initially made on the first ENAMORS convention on Optical distant Sensing of Terrestrial Surfaces: New Sensors, complex Algorithms, and the chance for Novel functions, held in Tuusula, Finland, in September 1997. This assembly assembled a uncommon panel of scientists, engineers, clients, and coverage makers, and supplied a discussion board to discuss clinical priorities, technological possibilities, and knowledge standards. coverage makers attempt to take complete good thing about investments in Earth remark, scientists advance new and higher algorithms to carry extra exact characterizations of our environment, or suggest cutting edge functions, whereas house organisations layout observational structures higher tailored to satisfy the necessities of a extensive spectrum of medical missions.

Show description