الصفحة 1
الصفحة 1
Morphology, Molecules, Evolution and Phylogeny in Polychaeta and Related Taxa; Proceedings of two ISSI Workshops, 18–22 October 1999 and 15–19 May 2000, Bern, Switzerland
Recently, evidence has been accumulated which shows that some of the groups formerly regarded as independent "phyla" such as Pogonophora (now recognized as Siboglinidae), Echiura, Myzostomida and perhaps Sipuncula, are most probably nothing else than greatly modified Annelida. The extreme morphological diversity found especially in Polychaeta displays the plasticity of a simple segmented organisation that basically is nothing else but a serial repetition of identical units. Thus, annelids are highly important to our understanding of fundamental questions about morphological and adaptive diversity, as well as clarifying evolutionary changes and phylogenetic relationships. The book aims to summarize our knowledge on Polychaetes polychaetes and their allies and gives an overview of recent advances gained by studies that employed conventional and modern methods plus, increasingly and importantly, the use of molecular markers and computer-assisted kinship analyses. It also reflects the state of art in polychaete sciences and presents new questions and controversies. As such it will significantly influence the direction of research on Polychaeta and their related taxa.
Morphological Models of Random Structures
This book covers methods of Mathematical Morphology to model and simulate random sets and functions (scalar and multivariate). The introduced models concern many physical situations in heterogeneous media, where a probabilistic approach is required, like fracture statistics of materials, scaling up of permeability in porous media, electron microscopy images (including multispectral images), rough surfaces, multi-component composites, biological tissues, textures for image coding and synthesis. The common feature of these random structures is their domain of definition in n dimensions, requiring more general models than standard Stochastic Processes.The main topics of the book cover an introduction to the theory of random sets, random space tessellations, Boolean random sets and functions, space-time random sets and functions (Dead Leaves, Sequential Alternate models, Reaction-Diffusion), prediction of effective properties of random media, and probabilistic fracture theories.
Monograph of the Urostyloidea (Ciliophora, Hypotricha)
This monograph is the second of a series treating the hypotrichs, a major part of the spirotrichous ciliates. The urostyloids are characterised by a zigzag-arrangement of the ventral cirri. Like the first part of the series, the Oxytrichidae, it summarises the morphological, morphogenetic, faunistic, and ecological data from the past 230 years, scattered in more than 1300 references from all over the world. Dichotomous keys lead to 36 genera and subgenera comprising 153 species illustrated by more than 2100 figures, including original ones. The treatise offers taxonomists, cell biologists, and ecologists a thorough and up-to-date revision because for each species a detailed list of synonyms, a discussion of the nomenclature and systematics, and an extensive description of the morphology and ecology, including almost all published faunistic records, are provided. With the monographs of the Urostyloidea and the Oxytrichidae the interested scientist can identify more than 320 species of hypotrichs, which are an important component of the eukaryotic microbial life in limnetic, marine, and terrestrial habitats.
Medical Image Computing and Computer-Assisted Intervention – MICCAI 2005 ; 8th International Conference, Palm Springs, CA, USA, October 26-29, 2005, Proceedings, Part I
This paper presents a method for classification of medical images, using machine learning and deformation-based morphometry. A morphological representation of the anatomy of interest is first obtained using highdimensional template warping, from which regions that display strong correlations between morphological measurements and the classification (clinical) variable are extracted using a watershed segmentation, taking into account the regional smoothness of the correlation map which is estimated by a crossvalidation strategy in order to achieve robustness to outliers. A Support Vector Machine-Recursive Feature Elimination (SVM-RFE) technique is then used to rank computed features from the extracted regions, according to their effect on the leave-one-out error bound. Finally, SVM classification is applied using the best set of features, and it is tested using leave-one-out. The results from a group of 61 brain images of female normal controls and schizophrenia patients demonstrate not only high classification accuracy (91.8%) and steep ROC curves, but also exceptional stability with respect to the number of selected features and the SVM kernel size
Handbook of neurochemistry and molecular neurobiology : Development and Aging Changes in the Nervous System
In the animal nervous system, a very high metabolic turnover, fragile but steep ionic gradients, and morphological and structural constraints - dictated by the necessity for prompt neuronal transmission of electrical impulses and necessary plasticity - result in a highly fragile organ system. Here, we address a small sampling of major constituents of neural function at the cellular and molecular level that play important roles in development and aging, two endogenous processes that embody features of allostasis or the dynamic shifts in set points for specific homeostatic mechanisms associated with development and aging. These chapters stress the dynamic features of neuronal responses to internal (developmental) cues or the more harmful external events (injury and disease) in a modern perspective.
Hand Bone Age : A Digital Atlas of Skeletal Maturity
For decades, the determination of bone maturity has relied on a visual evaluation of skeletal development in the hand and wrist, most commonly using the Greulich and Pyle atlas. The Gilsanz and Ratib digital atlas takes advantage of the advent of digital imaging and provides a more effective and objective approach to skeletal maturity assessment. This atlas integrates the key morphological features of ossification in the bones of the hand and wrist and provides idealized, sex- and age-specific images of skeletal development. This computer-generated set of images should serve as a reasonable alternative to the reference books currently available.
Farewell to the Internal Clock : A contribution in the field of chronobiology
Nearly everything making up what we call the “environment” of a plant has an infuence on the way it grows. Sunlight, te- perature, moisture contents of soil and atmosphere and vib- tions are all obvious examples of environmental components, and transient variations in their amount or intensity lead the plant to manifest more or less immediate responses. Small changes in carbon dioxide level in the atmosphere can even have effects, but these take a longer time to be registered – at least those that are visible, albeit at the microscopic level. Plants meet the challenges of the environment by means of acclimation. In this respect, plants are notable for the pl- ticity of their development. However, where morphological or physiological plasticity is no longer an option, the responses would be by means of adaptations as a result of genetic - lection or genetic “assimilation” (Waddington 1957).
Facilitative glucose transporters in articular chondrocytes : Expression, distribution and functional regulation of GLUT isoforms by hypoxia, hypoxia mimetics, growth factors and pro-inflammatory Cytokines
In this multidisciplinary article we review the molecular and morphological aspects of GLUT expression and function in chondrocytes and their mesenchymal and embryonic stem cell precursors and propose key roles for these proteins in glucose sensing and metabolic regulation in cartilage.
Evolution of Thin Film Morphology : Modeling and Simulations
Thin film deposition is the most ubiquitous and critical of the processes used to manufacture high tech devices. Morphology and microstructure of thin films directly controls their optical, magnetic, and electrical properties. This book focuses on modeling and simulations used in research on the morphological evolution during film growth. The authors emphasize the detailed mathematical formulation of the problem both through numerical calculations based on Langevin continuum equations, and through Monte Carlo simulations based on discrete surface growth models when an analytical formulism is not convenient. Evolution of Thin-Film Morphology will be of benefit to university researchers and industrial scientists working in the areas of semiconductor processing, optical coating, plasma etching, patterning, micro-machining, polishing, tribology, and any discipline that requires an understanding of thin film growth processes.
Event Structure and the Left Periphery : Studies on Hungarian
This book provides substantial new results in a novel field of research examining the syntactic and semantic consequences of event structure. The studies of this volume examine the hypothesis that event structure correlates with word order, the presence or absence of the verbal particle, the [+/- specific] feature of the internal argument, aspect, focusing, negation, and negative quantification, among others. The results reported concern the telicising vs. perfectivizing role of the verbal particle; the syntactic and semantic differences of verbs denoting a delimited change, and those denoting creation or coming into being; evidence of viewpoint aspect in a language with no morphological viewpoint marking; the aspectual role of non-thematic objects; the source of the ‘exhaustive identification’ function of structural focus; the interaction of negation and aspect etc.
Ergativity : Emerging Issues
This volume presents a collection of papers on the enticing and complex theme of Ergativity. The papers exemplify theoretical depth applied to a wide range of languages, with the majority of papers based on original fieldwork. Ergativity refers to a grammatical pattern in which the logical subject of intransitive clauses and the logical object of transitive clauses share some grammatical features, and in this respect differ from transitive subjects. The shared features are often case and/or agreement, but a variety of other relevant features have also been isolated in the literature.
Encyclopedia of South American Aquatic Insects : Odonata - Anisoptera : Illustrated Keys to Known Families, Genera, and Species in South America
To help readers understand naming conventions, a brief introductory biological review of the group includes illustrations of the main morphological features as well as explanations of alternative systems for naming the wing veins and other structures.
Early Modern Humans at the Moravian Gate : The Mladec Caves and their Remains
The Upper Paleolithic fossils of the Mladec caves, South Moravia, excavated at the end of the 19th century, hold a key position in the current discussion on modern human emergence within Europe and the fate of the Neanderthals. Although undoubtedly early modern humans - recently radio carbon dated to 31.000 years BP - their morphological variability and the presence of archaic features are indicative to some degree of regional Neanderthal ancestry. The beautifully illustrated monograph addresses - for the first time - the complete assemblage of the finds, including the human cranial.
Dental Image Analysis for Disease Diagnosis
This book provides an overview of computational approaches to medical image examination and analysis in oral radiology utilizing dental radiograph to detect and diagnose dental caries in cases of decayed teeth. The book also presents a novel multiphase level set method for automatic segmentation of dental radiographs.
Cross-linguistic Variation in Sentence Processing : Evidence From R C Attachment Preferences in Greek
This book argues in favour of cross-linguistic variation in sentence processing by providing empirical data from ambiguity resolution in Greek as L1 and L2. It is maintained that in highly inflected languages, like Greek, initial parsing decisions are determined by the interaction of morphological and lexical cues rather than by universal parsing principles. During the initial parse, discourse-level information is constrained by lexical considerations, which indicates that the human sentence processor is a multi-stage mechanism.
Coryphantha : Cacti of Mexico and Southern USA
This unique reference work presents the first comprehensive taxonomy of Coryphantha, with a complete key to the genus. During this process, the authors even discovered some new plants. More than 300 high-quality colour photos showing the various cacti and their habitats as well as distribution cards and illustrations explaining the morphological details complement the text.
Content based image retrieval systems
With an advent of technology, huge collection of digital images is formed as repositories on crime prevention, medical diagnosis, military, face finding, satellites and remote sensing. The task of searching for similar images in the repository is difficult. The data is growing enormously which makes it difficult to store and manage. The traditional image retrieval technique is inefficient in retrieving these images. Content-based image retrieval is an approach from data mining community, which provides the solution of managing this huge quantity of data. In this research, a Content-Based Image Retrieval (CBIR) system has been developed using color and texture as retrieval features from the image repository. The system allows the user to search for an image based on any of the two features alone or in combination by assigning weights to the features. The histogram and color moments approach is used to extract the color feature, texture feature is extracted using statistical moments and co-occurrence matrix method and the shape feature is extracted using the morphological operations. The images and the extracted feature vectors are stored in the Pickle file. The system is robust as it provides search based on the multiple features. The performance of the system was evaluated by analyzing the retrieval results using precision and recall.
Contaminated rivers : A geomorphological-geochemical approach to site assessment and remediation
The geomorphological, surficial and geochemical processes and conditions of rivers require a tailored set of strategies and programs to successfully clean up contaminated river reaches. The primary purpose of this book is not only to provide students and professionals with an introductory understanding of fluvial geomorphic principles but also to explain using a process oriented approach how these geomorphic principles can be integrated with geochemical data to cost-effectively characterize, assess and remediate contaminated river systems. Numerous case studies from North America and many other parts of the world are included.
Landslides from Massive Rock Slope Failure
Amongst the thematic topics discussed are global frequency, impacts on society, analysis of initial rock slope failure, monitoring of rock slope movement, analysis and modeling of post-failure behaviour, volcanic landslides, and influences of massive rock slope failure on the geomorphological evolution of mountain regions. Regional contributions include reports on rockslides and rock avalanches in Norway, western Canada, the Andes of Argentina, the Karakoram Himalaya, the European Alps, the Appennines, and the mountains of Central Asia.
Clinical oral anatomy : A comprehensive review for dental practitioners and researchers
Presents the most current and comprehensive review of oral anatomy for clinicians and researchers alike. In 26 chapters, the reader is taken on a unique anatomical journey, starting with the oral fissure, continuing via the maxilla and mandible to the tongue and floor of the mouth, and concluding with the temporomandibular joint and masticatory muscles. Each chapter offers a detailed description of the relevant anatomical structures and their spatial relationships, provides quantitative morphological assessments, and explains the relevance of the region for clinical dentistry. All dental health care professionals require a sound knowledge of anatomy for the purposes of diagnostics, treatment planning, and therapeutic intervention. A full understanding of the relationship between anatomy and clinical practice is the ultimate objective, and this book will enable the reader to achieve such understanding as the basis for provision of the best possible treatment for each individual patient as well as recognition and comprehension of unexpected clinical findings.
