La microscopie électronique et les tissus végétaux PDF Download

Author: Najat Assem
Publisher:
ISBN: 9783838141558
Category :
Languages : fr
Pages : 64

View

Book Description

Author: GILLES.. COLLIOT
Publisher:
ISBN:
Category :
Languages : fr
Pages :

View

Book Description
CETTE THESE CONCERNE L'ANALYSE D'IMAGES EN MICROSCOPIE ELECTRONIQUE. LA PREMIERE PARTIE PRESENTE LE COUPLAGE D'UN ANALYSEUR D'IMAGES A UN MICROSCOPE ELECTRONIQUE A BALAYAGE POUR PERMETTRE UNE EXPLORATION QUANTITATIVE MULTI-ECHELLES DES PREPARATIONS. LE COUPLAGE MIS EN UVRE PERMET AU LOGICIEL D'ANALYSE DE CONNAITRE ET DE COMMANDER A TOUT INSTANT LA POSITION DES PLATINES ET LE FACTEUR DE GRANDISSEMENT. LE SYSTEME PRESENTE ETEND L'UTILISATION DE L'ANALYSE D'IMAGES EN MICROSCOPIE A BALAYAGE AU-DELA DU SIMPLE CHAMP DE VISUALISATION ET DU GRANDISSEMENT DE TRAVAIL ASSOCIE. L'ANALYSE DE CHAQUE OBJET S'INTEGRE ALORS A L'ANALYSE COMPLETE DE LA PREPARATION. LES INFORMATIONS DE CONTEXTE SONT EGALEMENT CONSERVEES POUR PERMETTRE DE REPERER CHAQUE OBJET PAR RAPPORT A DES REGIONS PARTICULIERES SUR L'ECHANTILLON. UNE ETUDE CONCERNANT L'ADHERENCE BACTERIENNE AUX CELLULES RESPIRATOIRES EPITHELIALES HUMAINES EN CULTURE A PERMIS D'EVALUER LE SYSTEME. LA DEUXIEME PARTIE DE CE TRAVAIL ETUDIE LES ETAPES D'APPRENTISSAGE SUPERVISE ET DE CLASSIFICATION CONCERNANT LA RECONNAISSANCE DE FORMES DE PHYTOLITHES, FRAGMENTS DE SILICE LOCALISES DANS LES TISSUS VEGETAUX. LES PARAMETRES DE MESURE UTILISES SONT LA DECOMPOSITION EN SERIE DE FOURIER, LES INVARIANTS DE MOMENTS, CERTAINS PARAMETRES MORPHOMETRIQUES, CERTAINS OPERATEURS DE MORPHOLOGIE MATHEMATIQUE. L'EMPLOI DE L'ANALYSE EN COMPOSANTES PRINCIPALES A PERMIS D'EVALUER LES PERFORMANCES DE CHACUN DE CES FACTEURS OU CELLES DE COMBINAISONS DE CERTAINS D'ENTRE EUX, POUR EN EXTRAIRE ENFIN LES PLUS PERTINENTS. LA PHASE DE CLASSIFICATION A ETE FACILITEE EN TRAVAILLANT DANS LE REPERE ISSU DE L'ANALYSE MULTIVARIEE. DES CRITERES ROBUSTES DE DISCRIMINATION DE CLASSES DE PHYTOLITHES PAR ANALYSE D'IMAGES ONT AINSI PU ETRE MIS EN EVIDENCE

Author: Hermann Schacht
Publisher:
ISBN:
Category : Botany
Languages : fr
Pages : 316

View

Book Description

Author: Marcel Locquin
Publisher: Butterworth-Heinemann
ISBN: 148316487X
Category : Science
Languages : en
Pages : 335

View

Book Description
Handbook of Microscopy is a manual that deals mainly with the basic instruments and techniques used in light microscopy and its biological applications. A large section is devoted to the study of organic matter in microfossils preserved in rocks, in view of its stratigraphic importance in mining and oil prospecting. This text is comprised of six chapters; the first of which introduces the reader to the basic principles as well as to the instruments and techniques used in light microscopy. This book also discusses the microscopes and electronic flashlights for photomicrography, along with the use of monochromatic light, stereological and physicochemical microanalysis, microanalysis by electron microscopy, and microdetermination of physical values. Attention then turns to staining and impregnation and methods of fixation, examination, cutting, and mounting. The remaining chapters focus on the microscopy of topological stains and non-specific cytological stains, with emphasis on special methods used in animal and plant histology and protistology and mycological methods in pathology. This book is written specifically for microscopists.

Author: William V. Dashek
Publisher: Springer Science & Business Media
ISBN: 1592592325
Category : Science
Languages : en
Pages : 297

View

Book Description
Hands-on experimentalists describe the cutting-edge microscopical methods needed for the effective study of plant cell biology today. These powerful techniques, all described in great detail to ensure successful experimental results, range from light microscope cytochemistry, autoradiography, and immunocytochemistry, to recent developments in fluorescence, confocal, and dark-field microscopies. Important advances in both conventional and scanning electron microscopies are also fully developed, together with such state-of-the-art ancillary techniques as high-resolution autoradiography, immunoelectron microscopy, X-ray microanalysis, and electron systems imaging. Easy-to-use and up-to-date, Methods in Plant Electron Microscopy and Cytochemistry offers today's plant scientists a first class collection of readily reproducible light and electron microscopical methods that will prove the new standard for all working in the field.

Author:
Publisher:
ISBN:
Category : Botany
Languages : en
Pages : 460

View

Book Description

Author: Anthony William Robards
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 324

View

Book Description

Author:
Publisher:
ISBN:
Category : Cell culture
Languages : en
Pages : 520

View

Book Description

Author: Barrie Edward Juniper
Publisher: Blackwell Scientific Publications Limited
ISBN:
Category : Science
Languages : en
Pages : 128

View

Book Description
Fixation. Embedding. Microtomy. General stains. Cytochemical stains. Negative staining. Specimen support films. Replicas. Preparation for scanning electron microscopy. Special techniques. Autoradiography. The instrument and photography.

Author: Francis A. Gunther
Publisher: Springer Science & Business Media
ISBN: 1461584884
Category : Science
Languages : en
Pages : 212

View

Book Description
That residues of pesticide and other contaminants in the total environment are of concern to everyone everywhere is attested by the reception accorded previous volumes of "Residue Reviews" and by the gratifying enthusiasm, sincerity, and efforts shown by all the in dividuals from whom manuscripts have been solicited. Despite much propaganda to the contrary, there can never be any serious question that pest-control chemicals and food-additive chemicals are essential to adequate food production, manufacture, marketing, and storage, yet without continuing surveillance and intelligent control some of those that persist in our foodstuffs could at times conceivably endanger the public health. Ensuring safety-in-use of these many chemicals is a dynamic challenge, for established ones are continually being dis placed by newly developed ones more acceptable to food tech nologists, pharmacologists, toxicologists, and changing pest-control requirements in progressive food-producing economies. These matters are of genuine concern to increasing numbers of governmental agencies and legislative bodies around the' wprld, for some of these chemicals have resulted in a few mishilps from improper use. Adequate safety-in-use evaluations of any of these chemicals per sisting into our foodstuHs are not simple matters, and they incorporate theconsidered judgments of many individuals highly trained in a variety of complex biological, chemical, food technological, medical, pharmacological, and toxicological disciplines.