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Author: Wolfgang Meyerhof
Publisher: Springer Science & Business Media
ISBN: 3540699198
Category : Science
Languages : en
Pages : 272
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Book Description
The sense of smell has an essential role in locating food, detecting predators, navigating, and communicating social information. Accordingly, the olfactory system has evolved complex repertoires of receptors to face these problems. Although the sense of taste has less far-reaching tasks, they are every bit as essential for the animals well-being, allowing it to reject toxic materials and to select nutritionally valuable food. The last decade has seen a massive advance in understanding the molecular logic of chemosensory information processing, beyond that already achieved in the rst few years following Linda Bucks discovery of odorant receptors. Shortly afterwards, the major principles of olfactory representation had been established in mammals as the one neuron/ one receptor rule and the convergence of neurons, which express the same receptor, onto individual modules in the olfactory bulb. In recent years, such studies have been extended to lower vertebrates, including shes and other phyla, i. e. , arthropods, worms, and insects, showing both the general validity of these concepts and some exceptions to the rule. In parallel, hallmarks of the molecular logic of taste sensation have been deciphered and found to differ in interesting ways from those of smell sensation.
Author: Wolfgang Meyerhof
Publisher: Springer Science & Business Media
ISBN: 3540699198
Category : Science
Languages : en
Pages : 272
Get Book Here
Book Description
The sense of smell has an essential role in locating food, detecting predators, navigating, and communicating social information. Accordingly, the olfactory system has evolved complex repertoires of receptors to face these problems. Although the sense of taste has less far-reaching tasks, they are every bit as essential for the animals well-being, allowing it to reject toxic materials and to select nutritionally valuable food. The last decade has seen a massive advance in understanding the molecular logic of chemosensory information processing, beyond that already achieved in the rst few years following Linda Bucks discovery of odorant receptors. Shortly afterwards, the major principles of olfactory representation had been established in mammals as the one neuron/ one receptor rule and the convergence of neurons, which express the same receptor, onto individual modules in the olfactory bulb. In recent years, such studies have been extended to lower vertebrates, including shes and other phyla, i. e. , arthropods, worms, and insects, showing both the general validity of these concepts and some exceptions to the rule. In parallel, hallmarks of the molecular logic of taste sensation have been deciphered and found to differ in interesting ways from those of smell sensation.
Author: Wolfgang Meyerhof
Publisher: Springer
ISBN: 9783540866169
Category : Science
Languages : en
Pages : 262
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Book Description
The sense of smell has an essential role in locating food, detecting predators, navigating, and communicating social information. Accordingly, the olfactory system has evolved complex repertoires of receptors to face these problems. Although the sense of taste has less far-reaching tasks, they are every bit as essential for the animals well-being, allowing it to reject toxic materials and to select nutritionally valuable food. The last decade has seen a massive advance in understanding the molecular logic of chemosensory information processing, beyond that already achieved in the rst few years following Linda Bucks discovery of odorant receptors. Shortly afterwards, the major principles of olfactory representation had been established in mammals as the one neuron/ one receptor rule and the convergence of neurons, which express the same receptor, onto individual modules in the olfactory bulb. In recent years, such studies have been extended to lower vertebrates, including shes and other phyla, i. e. , arthropods, worms, and insects, showing both the general validity of these concepts and some exceptions to the rule. In parallel, hallmarks of the molecular logic of taste sensation have been deciphered and found to differ in interesting ways from those of smell sensation.
Author:
Publisher: Academic Press
ISBN: 012821158X
Category : Science
Languages : en
Pages : 516
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Book Description
This new volume of Methods in Enzymology continues the legacy of this premier serial with quality chapters authored by leaders in the field. - Provides the authority and expertise of leading contributors from an international board of authors - Presents the latest release in the Methods in Enzymology series
Author: Mark Hollins
Publisher: CRC Press
ISBN: 1040117589
Category : Medical
Languages : en
Pages : 381
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Book Description
Perception in animals is a fascinating and challenging subject that calls to students from many disciplines. The aim of this book is to provide a knowledge base and unifying perspective on the field that will enable beginning researchers to chart their own course within it. The author describes, in a systematic but engaging way, the sensory systems of humans and other vertebrates, as well as arthropods and molluscs. Why is it important to understand the senses of animals? One reason is that human activities are changing the perceptual world of animals in ways that expose them to danger. From bright outdoor lighting disorienting migrating birds to human sonar driving whales to beach themselves; it is becoming increasingly important to find ways to reduce such dangers. This will require big changes in human behavior, and greater understanding of how animals react, physiologically and behaviorally, to anthropogenic changes in their environment. The emphasis throughout is on research, in both the behavioral/ethological and neuroscientific traditions, that has led to important discoveries. The functional anatomy of each system, from receptor cells to brain areas, is succinctly described, explaining how it underlies the animal’s sensory abilities and behavior. Overall descriptions of a sense for a class of animals (for example, hearing in arachnids) are interspersed with expanded coverage of that sense in a particular animal, such as the ogre-faced web-casting spider that does a backflip to capture an insect buzzing overhead. Evolutionary themes are found throughout the book, for example in describing the development of the vertebrate ear, and in the convergent evolution of the eyes of vertebrates and cephalopods. With over 500 references and 80 illustrations, this textbook is primary reading intended for advanced undergraduates and beginning graduate students of veterinary science, lab animal science, and zoology. It would also be of great interest to professionals and academics working with animals such as veterinary professionals and zookeepers.
Author: Richard L. Doty
Publisher: John Wiley & Sons
ISBN: 1118969367
Category : Medical
Languages : en
Pages : 1284
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Book Description
The largest collection of basic, clinical, and applied knowledge on the chemical senses ever compiled in one volume, the third edition of Handbook of Olfaction and Gustation encompass recent developments in all fields of chemosensory science, particularly the most recent advances in neurobiology, neuroscience, molecular biology, and modern functional imaging techniques. Divided into five main sections, the text covers the senses of smell and taste as well as sensory integration, industrial applications, and other chemosensory systems. This is essential reading for clinicians and academic researchers interested in basic and applied chemosensory perception.
Author: James Devillers
Publisher: CRC Press
ISBN: 1498741819
Category : Medical
Languages : en
Pages : 473
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Book Description
There is a compelling need for new drugs and efficient treatments against mosquito-borne diseases. Environmentally safe, but effective insecticides that address the problems of resistance are required. Computational Design of Chemicals for the Control of Mosquitoes and Their Diseases explains how the search for new substances effective against mosquitoes and their diseases has benefited from the use of in silico techniques. QSAR modeling is suited to identify the key structural features and/or physicochemical properties explaining an activity and to propose candidate molecules for further evaluation by laboratory tests. Homology modeling is useful to approximate the 3D structure of proteins of interest. Pharmacophore modeling is a powerful means to capture the chemical features responsible for an activity and to identify new potentially active compounds via the virtual screening of databases. Fugacity modeling and a wealth of other modeling paradigms are useful for risk assessment in vector borne disease control.
Author: Michel Aliani
Publisher: John Wiley & Sons
ISBN: 1118590317
Category : Technology & Engineering
Languages : en
Pages : 263
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Book Description
The increasing demand for healthy foods has resulted in the food industry developing functional foods with health-promoting and/or disease preventing properties. However, many of these products bring new challenges. While drugs are taken for their efficacy, functional foods need to have tastes that are acceptable to consumers. Bitterness associated with the functional foods is one of the major challenges encountered by food industry today and will remain so in years to come. This important book offers a thorough understanding of bitterness, the food ingredients that cause it and its accurate measurement. The authors provide a thorough review of bitterness that includes an understanding of the genetics of bitterness perception and the molecular basis for individual differences in bitterness perception. This is followed by a detailed review of the chemical structure of bitter compounds in foods where bitterness may be considered to be a positive or negative attribute. To better understand bitterness in foods, separation and analytical techniques used to identify and characterize bitter compounds are also covered. Food processing can itself generate compounds that are bitter, such as the Maillard reaction and lipid oxidation related products. Since bitterness is considered a negative attribute in many foods, the methods being used to remove and/mask it are also thoroughly discussed.
Author: Ronald W. Hardy
Publisher: Academic Press
ISBN: 0128231599
Category : Science
Languages : en
Pages : 924
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Book Description
Fish Nutrition, Fourth Edition is an up-to-date, authoritative presentation of all key elements of the nutrition of fish and crustaceans. As aquaculture is rapidly expanding, more than 200 herbivorous and carnivorous species occupy a diverse range of ecological niches, and have therefore evolved to utilize a wide array of food sources. This new edition highlights these differences and covers the complexity and challenges associated with fish nutrition, addressing nutrient requirements to produce high-quality, healthful and sustainable resources, the essential nutrients for fish species, including proteins and amino acids, vitamins, minerals and essential fatty acids, a feed quality assessment, and fish pathology. Led by a team of international experts, this edition provides readers with new information on the use of high-throughput technologies in fish nutrition research, the role of feeds on the community structure of the microbiome, and advances in essential nutrient requirements. - Features expansive updates to the previous edition, including a new chapter dedicated to diet analysis and evaluation - Addresses the roles of fish nutrition and feeds on sustainability and the environmental impacts of aquaculture - Covers basic nutritional biochemistry and applied nutritional topics
Author: Thomas Breithaupt
Publisher: Springer Science & Business Media
ISBN: 0387771018
Category : Science
Languages : en
Pages : 572
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Book Description
The crustaceans are ecologically and economically important organisms. They constitute one of the dominant invertebrate groups on earth, particularly within the aquatic realm. Crustaceans include some of the preferred scientific model organism, profitable aquaculture specimen, but also invasive nuisance species threatening native animal communities throughout the world. Chemoreception is the most important sensory modality of crustaceans, acquiring important information about their environment and picking up the chemical signals that mediate communication with conspecifics. Significant advances have been made in our understanding of crustacean chemical communication during the past decade. This includes knowledge about the identity, production, transfer, reception and behavioral function of chemical signals in selected crustacean groups. While it is well known that chemical communication is an integral part of the behavioral ecology of most living organisms, the intricate ways in which organisms allocate chemicals in communication remains enigmatic. How does the environment influence the evolution of chemical communication? What are the environmental cues that induce production or release of chemicals? How do individuals economize production and utilization of chemicals? What is the importance of molecule specificity or mix of a molecule cocktail in chemical communication? What is the role of chemical cues in multimodal communication? How does the ontogenetic stage, the sex or the physiological status of an individual affect its reaction to chemical cues? Many of these questions still represent important challenges to biologists.
Author: Gail Vance Civille
Publisher: CRC Press
ISBN: 1040112919
Category : Science
Languages : en
Pages : 564
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Book Description
The sixth edition of this classic text brings sensory evaluation to life for new students and experienced professionals alike. A full array of sensory methods is covered – including descriptive techniques, discrimination testing, and consumer research, plus guidance on test design, statistical analysis, and how to translate results into insights for actionable decisions. Like its predecessors, Sensory Evaluation Techniques, Sixth Edition gives a clear and concise presentation of practical solutions, accepted methods, and standard practices, in addition to advanced techniques. What’s new in the sixth edition: An expanded chapter on Sensory Physiology, including recent research on individual differences in perception A thorough discussion of Thurstonian theory and its application to discrimination methods, including the Tetrad Test New sections on technology in sensory evaluation, including a discussion of software options for data collection Improved & updated case studies to aid learning comprehension Updated appendices for Spectrum Method attributes, references, and scales Updated references Online supplemental content Sensory Evaluation Techniques remains a practical, relevant, and flexible resource, providing how-to information for a wide variety of users in industry, government, and academia who need the most current information to conduct effective sensory research. It also supplies students with the necessary theoretical background in sensory evaluation methods, applications, and interpretations.
