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Author: E. Anibal Disalvo
Publisher: Springer
ISBN: 3319190601
Category : Science
Languages : en
Pages : 295
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Book Description
This book is about the importance of water in determining the structure, stability and responsive behavior of biological membranes. Water confers to lipid membranes unique features in terms of surface and mechanical properties. The analysis of the hydration forces, plasticiser effects, controlled hydration, formation of microdomains of confined water suggests that water is an active constituent in a water-lipid system. The chapters describe water organization at the lipid membrane–water interphase, the water penetration, the long range water structure in the presence of lipid membranes by means of X-ray and neutron scattering, general polarization, fluorescent probes, ATR-FTIR and near infrared spectroscopies, piezo electric methods, computer simulation and surface thermodynamics. Permeation, percolation, osmotic stress, polarization, protrusion, sorption, hydrophobicity, density fluctuations are treated in detail in self-assembled bilayers. Studies in lipid monolayers show the correlation of surface pressure with water activity and its role in peptide and enzyme interactions. The book concludes with a discussion on anhydrobiosis and the effect of water replacement in microdomains and its consequence for cell function. New definitions of lipid/water interphases consider water not only as a structural-making solvent but as a mediator in signalling metabolic activity, modulating protein insertion and enzymatic activity, triggering oscillatory reactions and functioning of membrane bound receptors. Since these effects occur at the molecular level, membrane hydration appears fundamental to understand the behavior of nano systems and confined environments mimicking biological systems. These insights in structural, thermodynamical and mechanical water properties give a base for new paradigms in membrane structure and function for those interested in biophysics, physical chemistry, biology, bio and nano medicine, biochemistry, biotechnology and nano sciences searching for biotechnological inputs in human health, food industry, plant growing and energy conversion.
Author: E. Anibal Disalvo
Publisher: Springer
ISBN: 3319190601
Category : Science
Languages : en
Pages : 295
Get Book Here
Book Description
This book is about the importance of water in determining the structure, stability and responsive behavior of biological membranes. Water confers to lipid membranes unique features in terms of surface and mechanical properties. The analysis of the hydration forces, plasticiser effects, controlled hydration, formation of microdomains of confined water suggests that water is an active constituent in a water-lipid system. The chapters describe water organization at the lipid membrane–water interphase, the water penetration, the long range water structure in the presence of lipid membranes by means of X-ray and neutron scattering, general polarization, fluorescent probes, ATR-FTIR and near infrared spectroscopies, piezo electric methods, computer simulation and surface thermodynamics. Permeation, percolation, osmotic stress, polarization, protrusion, sorption, hydrophobicity, density fluctuations are treated in detail in self-assembled bilayers. Studies in lipid monolayers show the correlation of surface pressure with water activity and its role in peptide and enzyme interactions. The book concludes with a discussion on anhydrobiosis and the effect of water replacement in microdomains and its consequence for cell function. New definitions of lipid/water interphases consider water not only as a structural-making solvent but as a mediator in signalling metabolic activity, modulating protein insertion and enzymatic activity, triggering oscillatory reactions and functioning of membrane bound receptors. Since these effects occur at the molecular level, membrane hydration appears fundamental to understand the behavior of nano systems and confined environments mimicking biological systems. These insights in structural, thermodynamical and mechanical water properties give a base for new paradigms in membrane structure and function for those interested in biophysics, physical chemistry, biology, bio and nano medicine, biochemistry, biotechnology and nano sciences searching for biotechnological inputs in human health, food industry, plant growing and energy conversion.
Author: William M. Adams
Publisher: MDPI
ISBN: 3039286560
Category : Medical
Languages : en
Pages : 184
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Book Description
The purpose of this Special Issue, “Water Intake, Body Water Regulation, and Health”, is to present novel reviews and experimental data regarding hydration physiology and its implication in overall health. Water has previously been dubbed the forgotten nutrient due to humans’ and animals’ ability to subsist seemingly unchanged across a wide range of daily water intakes. However, with the introduction of stressors such as exercise, diseased states, and/or chronic high or low water intake, the homeostatic signals related to body water regulation can influence organ and whole-body health. This Special Issue will discuss water intake, the scientific rationale surrounding the U.S. and European water intake guidelines, homeostatic mechanisms, diseases related to dysfunction of water regulation, and differences in the volume and the vehicle in which the water is contained (i.e., plain water versus mixed beverages) on water intake during and following exercise. The aim is to continue discussion surrounding water, the previously forgotten nutrient, and highlight the importance of water in daily life.
Author: Bernard Pullman
Publisher: Springer
ISBN:
Category : Science
Languages : en
Pages : 588
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Book Description
Proceedings of the 14th Jerusalem Symposium on Quantum Chemistry and Biochemistry, Jerusalem, Israel, April 13-16, 1981
Author: Christopher Tollefsen
Publisher: Springer Science & Business Media
ISBN: 1402062079
Category : Medical
Languages : en
Pages : 233
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Book Description
Pope John Paul II surprised much of the medical world in 2004 with his strongly worded statement insisting that patients in a persistent vegetative state should be provided with nutrition and hydration. This collection of essays featuring some of the most prominent Catholic bioethicists addresses the Pope’s statements, the moral issues surrounding artificial feeding and hydration, the refusal of treatment, and the ethics of care for those at the end of life.
Author: Institute of Medicine
Publisher: National Academies Press
ISBN: 0309091586
Category : Medical
Languages : en
Pages : 639
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Book Description
Dietary Reference Intakes for Water, Potassium, Sodium, Chloride, and Sulfate The Dietary Reference Intakes (DRIs) are quantitative estimates of nutrient intakes to be used for planning and assessing diets for healthy people. This new report, the sixth in a series of reports presenting dietary reference values for the intakes of nutrients by Americans and Canadians, establishes nutrient recommendations on water, potassium, and salt for health maintenance and the reduction of chronic disease risk. Dietary Reference Intakes for Water, Potassium, Sodium, Chloride, and Sulfate discusses in detail the role of water, potassium, salt, chloride, and sulfate in human physiology and health. The major findings in this book include the establishment of Adequate Intakes for total water (drinking water, beverages, and food), potassium, sodium, and chloride and the establishment of Tolerable Upper Intake levels for sodium and chloride. The book makes research recommendations for information needed to advance the understanding of human requirements for water and electrolytes, as well as adverse effects associated with the intake of excessive amounts of water, sodium, chloride, potassium, and sulfate. This book will be an invaluable reference for nutritionists, nutrition researchers, and food manufacturers.
Author: Ólöf G. Geirsdóttir
Publisher: Springer Nature
ISBN: 3030638928
Category : Adulthood
Languages : en
Pages : 274
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Book Description
Intro -- Foreword -- Acknowledgements -- Contents -- Part I: Nutritional Care in Geriatrics -- 1: Overview of Nutrition Care in Geriatrics and Orthogeriatrics -- 1.1 Defining Malnutrition -- 1.2 Nutrition Care in Older Adults: A Complex and Necessary Challenge -- 1.3 Malnutrition: A Truly Wicked Problem -- 1.4 Building the Rationale for Integrated Nutrition Care -- 1.5 Managing the Wicked Nutrition Problems with a SIMPLE Approach (or Other Tailored Models) -- 1.5.1 Keep It SIMPLE When Appropriate -- 1.5.2 A SIMPLE Case Example -- 1.5.2.1 S-Screen for Malnutrition -- 1.5.2.2 I-Interdisciplinary Assessment -- 1.5.2.3 M-Make the Diagnosis (es) -- 1.5.2.4 P-Plan with the Older Adult -- 1.5.2.5 L-Implement Interventions -- 1.5.2.6 E-Evaluate Ongoing Care Requirements -- 1.6 Bringing It All Together: Integrated Nutrition Care Across the Four Pillars of (Ortho) Geriatric Care -- 1.7 Summary: Finishing Off with a List of New Questions -- References -- Recommended Reading -- 2: Nutritional Requirements in Geriatrics -- 2.1 Nutritional Recommendations for Older Adults, Geriatric and Orthogeriatric Patients -- 2.2 Nutritional Recommendations for Older Adults -- 2.2.1 Energy Requirement and Recommended Intake -- 2.2.2 Protein Requirement and Recommended Intake -- 2.2.3 Micronutrients and Dietary Fibers -- 2.3 Nutritional Risk Factors in Older Adults -- 2.4 Estimating Intake in Older Adults -- 2.5 Nutritional Status of Older Adults, Geriatric and Orthogeriatric Patients -- 2.6 Summary -- References -- Recommended Reading -- 3: Nutritional Assessment, Diagnosis, and Treatment in Geriatrics -- 3.1 The Nutrition Care Process -- 3.2 Nutritional Screening/Risk Detection -- 3.3 Nutritional Assessment and Diagnosis -- 3.3.1 Nutrition Impact Symptoms -- 3.3.2 Nutritional Diagnosis -- 3.3.3 Etiologic Criteria.
Author: Abby G. Ershow
Publisher:
ISBN:
Category : Water consumption
Languages : en
Pages : 172
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Book Description
Presents estimates of total water and tap water intake in the population of the continental United States, based on data collected during the 1977-78 Nationwide Food Consumption Survey of the U.S. Department of Agriculture. Describes in detail the methods used to derive the estimates. Data are presented by age group, sex, season and geographic region, and separately for pregnant women, lactating women, and breast-fed children.
Author: Marie-Claire Bellissent-Funel
Publisher: IOS Press
ISBN: 9789051994391
Category : Medical
Languages : en
Pages : 456
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Book Description
The interaction of water at organic surfaces or interfaces is of fundamental and technological interest and importance in chemistry, physics and biology. Progress towards an in-depth, molecular interpretation of the structure and dynamics of interfacial water needs a range of novel experimental and simulation techniques. We are now reaching the stage at which we understand, at the molecular level, the mutual perturbation at a macromolecule/water interface. The aims of this book are to provide with a comprehensive background to the properties of bulk water at the microscopic level and with a substantial account of the theoretical and experimental contributions which have been done to understand the role of water in various systems from some model systems to the more complex ones such as the biological systems.
Author: Timothy Noakes
Publisher: Human Kinetics
ISBN: 1492583367
Category : Sports & Recreation
Languages : en
Pages : 614
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Book Description
“Drink as much as you can, even before you feel thirsty." That's been the mantra to athletes and coaches for the past three decades, and bottled water and sports drinks have flourished into billion-dollar industries in the same short time. The problem is that an overhydrated athlete is at a performance disadvantage and at risk of exercise-associated hyponatremia (EAH)--a potentially fatal condition. Dr. Tim Noakes takes you inside the science of athlete hydration for a fascinating look at the human body’s need for water and how it uses the liquids it ingests. He also chronicles the shaky research that reported findings contrary to results in nearly all of Noakes’ extensive and since-confirmed studies. In Waterlogged, Noakes sets the record straight, exposing the myths surrounding dehydration and presenting up-to-date hydration guidelines for endurance sport and prolonged training activities. Enough with oversold sports drinks and obsessing over water consumption before, during, and after every workout, he says. Time for the facts—and the prevention of any more needless fatalities.
Author: Douglas J. Casa
Publisher: Springer
ISBN: 3319702173
Category : Medical
Languages : en
Pages : 384
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Book Description
This unique book is the first of its kind to specifically explore the science, medicine, challenges and successful experiences of assisting those who must perform and thrive in hot conditions, with an eye toward maximizing both performance and safety. Beginning with both human and comparative physiology as it relates to coping with the heat, key concepts are subsequently elaborated, including heat acclimatization, work-to-rest ratios, hydration, sleep, the effects of altitude, and the use of drugs and supplements. The sections that follow discuss heat-related considerations in individual and team sports and other populations, monitoring techniques, and medical and legal issues. Athletes, warfighters and laborers are often forced to perform intense physical activity in the heat as a part of their jobs or lifestyle. The process of properly preparing for this challenge is multifaceted and often not fully understood or utilized. Sport and Physical Activity in the Heat is an excellent resource for team physicians, high-level coaches, serious athletes, athletic trainers, exercise scientists, strength and conditioning coaches, industrial hygienists, military commanders, or anyone involved in the process of maximizing performance and safety during exercise in the heat for the athlete, warfighter, or laborer.
