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Books > Science & Mathematics > Chemistry
This book provides a comprehensive and authoritative review of the
chemical analysis of UV filters in coastal waters and their impact
on the marine environment. The sun care is today the most important
sector within the cosmetics industry, with annual increases in
sales. The main components of sunscreens, organic and inorganic UV
filters, have been detected in many coastal regions, with the
highest concentrations in coastal areas under high anthropogenic
pressure. Moreover, these compounds have been found to be
bioaccumulated in aquatic biota causing biological and
toxicological responses; some organic UV filters act as endocrine
disruptors in aquatic biota, affecting survival, behavior, growth,
development and reproduction. On the other hand, inorganic UV
filters, mainly based on nanoparticles, have been demonstrated to
have various impacts on marine organisms, such as inducing
oxidative stress in abalones, accumulating in microalgae, affecting
the immune response in mussels, bleaching corals, and genotoxicity
in fish, among others. All these effects of sunscreens on the
marine environment highlight the need for more stringent and
environmentally friendly regulations. This book covers the latest
analytical methodologies used in assessing the impact of UV filters
impact on marine waters, especially on marine biota, and also
critiques the global regulation of UV filters and the environmental
risk of using sunscreens. Featuring specific case studies of the
environmental effects of sunscreens in the Mediterranean Sea and
Hawaii, which highlight the importance of balancing human health
with environmental health of coastal ecosystems, it will appeal not
only to scientists and students from various disciplines
(environmental chemistry, biology, ecology, biogeochemistry,
fisheries and climate change among others), but also to
environmental managers wanting to promote new restrictive
regulations on the use of UV filters, and to professionals from the
cosmetic industry interested in the development of eco-friendly
sunscreens.
This unique and timely text is designed to help food science
students learn to perform critical analysis of food processing
technology and consider the incorporation of elements that touch on
contemporary technological developments in the food sector. As the
food industry adjusts to new consumer demands for safe and low
processed foods, the time has come to harmonize product and process
engineering with 'relationship engineering' from farm to fork. This
increasingly allows the opportunity for food sector professionals
to consider the existence of new drivers of food consumption. These
newly discovered drivers are explored in great detail over the
course of this book from industrial, economic and human resource
viewpoints. Social Drivers In Food Technology presents a series of
helpful case studies are presented covering six important food
sectors: chocolate, coffee, yogurt, juice, baby food and snacks.
These cases have been chosen in order to illustrate dynamic and
innovative advances in food processing technology. The information
provided over the course of this book has been gained through the
thorough study of both scientific literature and organizational
reports from food processing companies. The major economic aspects
related to food technology are also outlined throughout the text.
This multidisciplinary approach is motivated by the opportunity to
contextualize the technological debate in strategy and
organizational economics, contributing to the formation of human
resources. This text is informed by the concept that one must look
beyond the technology of the food processing sector and discuss
opportunities that involve re-thinking product innovation and
process, knowledge generation and human resource training. These
innovations have been highlighted in food science & technology
literature, but their economic and managerial implications have
remained unexplored until now. With its informative case studies,
helpful illustrations and quizzes and comprehensive, well-organized
scope, Social Drivers In Food Technology is a much-needed textbook
that will allow students to look at food processing technology from
both industrial and economic perspectives and to consider the
important human resource elements involved.
In this book, the development of next-generation batteries is
introduced. Included are reports of investigations to realize high
energy density batteries: Li-air, Li-sulfur, and all solid-state
and metal anode (Mg, Al, Zn) batteries. Sulfide and oxide solid
electrolytes are also reviewed.A number of relevant aspects of all
solid-state batteries with a carbon anode or Li-metal anode are
discussed and described: The formation of the cathode; the
interface between the cathode (anode) and electrolyte; the
discharge and charge mechanisms of the Li-air battery; the
electrolyte system for the Li-air battery; and cell construction.
The Li-sulfur battery involves a critical problem, namely, the
dissolution of intermediates of sulfur during the discharge
process. Here, new electrolyte systems for the suppression of
intermediate dissolution are discussed. Li-metal batteries with
liquid electrolytes also present a significant problem: the
dendrite formation of lithium. New separators and electrolytes are
introduced to improve the safety and rechargeability of the
Li-metal anode. Mg, Al, and Zn metal anodes have been also applied
to rechargeable batteries, and in this book, new metal anode
batteries are introduced as the generation-after-next
batteries.This volume is a summary of ALCA-SPRING projects, which
constitute the most extensive research for next-generation
batteries in Japan. The work presented in this book is highly
informative and useful not only for battery researchers but also
for researchers in the fields of electric vehicles and energy
storage.
The field of relativistic electronic structure theory is generally
not part of theoretical chemistry education, and is therefore not
covered in most quantum chemistry textbooks. This is due to the
fact that only in the last two decades have we learned about the
importance of relativistic effects in the chemistry of heavy and
superheavy elements. Developments in computer hardware together
with sophisticated computer algorithms make it now possible to
perform four-component relativistic calculations for larger
molecules. Two-component and scalar all-electron relativistic
schemes are also becoming part of standard ab-initio and density
functional program packages for molecules and the solid state. The
second volume of this two-part book series is therefore devoted to
applications in this area of quantum chemistry and physics of
atoms, molecules and the solid state. Part 1 was devoted to
fundamental aspects of relativistic electronic structure theory
whereas Part 2 covers more of the applications side. This volume
opens with a section on the Chemistry of the Superheavy Elements
and contains chapters dealing with Accurate Relativistic Fock-Space
Calculations for Many-Electron Atoms, Accurate Relativistic
Calculations Including QED, Parity-Violation Effects in Molecules,
Accurate Determination of Electric Field Gradients for Heavy Atoms
and Molecules, Two-Component Relativistic Effective Core Potential
Calculations for Molecules, Relativistic Ab-Initio Model Potential
Calculations for Molecules and Embedded Clusters, Relativistic
Pseudopotential Calculations for Electronic Excited States,
Relativistic Effects on NMR Chemical Shifts, Relativistic Density
Functional Calculations on Small Molecules, Quantum Chemistry with
the Douglas-Kroll-Hess Approach to Relativistic Density Functional
Theory, and Relativistic Solid State Calculations.
- Comprehensive publication which focuses on new developments in
relativistic quantum electronic structure theory
- Many leaders from the field of theoretical chemistry have
contributed to the TCC series
- Will no doubt become a standard text for scientists in this
field.
Annual Reports in Computational Chemistry is a new periodical
providing timely and critical reviews of important topics in
computational chemistry as applied to all chemical disciplines.
Topics covered include quantum chemistry, molecular mechanics,
force fields, chemical education, and applications in academic and
industrial settings. Each volume is organized into (thematic)
sections with contributions written by experts. Focusing on the
most recent literature and advances in the field, each article
covers a specific topic of importance to computational chemists.
Annual Reports in Computational Chemistry is a 'must' for
researchers and students wishing to stay up-to-date on current
developments in computational chemistry.
In Volume 3, topics covered include Simulation Methodologies
(Carlos Simmerling), Biological and Biophysical Applications
(Heather Carlson), Chemical Education (Theresa Zielinski),
Materials and Polymers (Jeffry Madura), Quantum Chemistry (T.
Daniel Crawford), and Emerging Technologies (Wendy Cornell). With
this volume we extend the practice of cumulative indexing of both
the current and past editions in order to provide easy
identification of past reports.
* Broad coverage of computational chemistry and up-to-date
information
* Topics covered include quantum chemistry, molecular mechanics,
force fields, chemical education, and applications in academic and
industrial settings
* Each chapter reviews the most recent literature on a specific
topic of interest to computational chemists
Applications of microbial nanotechnology are currently emerging
with new areas being explored. Biosynthesis of nanomaterials by
microorganisms is a recently attracting interest as a new, exciting
approach towards the development of 'greener' nanomanufacturing
compared to traditional chemical and physical approaches. This book
will cover recent advances of microbial nanotechnology in
agriculture, industry, and health sectors.
This book presents the theoretical and experimental investigations
on antiferromagnetically coupled ferrimagnets and reveals new
aspects of ferrimagnetic dynamics in terms of the role of angular
momentum. The purpose of this book is to show readers that
antiferromagnets/ferrimagnets are useful in spintronic devices in
that (1) The non adiabatic spin transfer torque in antiferromagnets
acts as a staggered magnetic field, which can drive the magnetic
domain walls, and (2) The Gilbert damping parameter , the energy
dissipation rate associated with the magnetic dynamics of
ferrimagnets, is insensitive to temperature in contrast to the
conventional understanding that the effective of ferrimagnets
diverges at the angular momentum compensation temperature. This
book provides readers with a scientific platform of ferrimagnetic
dynamics, which serves as a useful basis for realizing the next
generation of spintronic devices.
Bioactive natural compounds have gained attention in recent years
due to their potential health benefits, including reducing the risk
of diabetes, cancer, and cardiovascular diseases. These benefits
derive from bioactive compounds' anti-tumor, anti-inflammatory,
anti-oxidative, anti-hypertensive and anti-hyperlipidemic
activities, which serve in addition to their basic nutritional
functions. Over the last decade, researchers have investigated the
health impact of bioactive compounds in detail, and the development
of food applications has attracted great interest. Consumer demand
has surged for functional foods (nutraceuticals), superfoods, and
tailor-made foods, generated by supplementing traditional food
products with bioactive ingredients. Food Bioactives and Health
offers comprehensive coverage of the properties and health effects
of food bioactives in view of new trends in processing, food
science and food technology. Starting with the metabolic
characteristics of polyphenols, glucosinolates, and other food
bioactives, the text then dives into their impact on human health
and recent applications in the world of food technology. For food
scientists, food technologists, and product developers looking to
understand the role of food bioactives in health and develop
applications in personalized nutrition, functional foods and
nutraceuticals, Food Bioactives and Health serves as a one-stop
reference.
This book introduces readers to interfacial reactions in
confinement on stimuli-responsive homopolymer and diblock copolymer
films. It also includes investigations concerning the
immobilization of (bio)molecules and the fabrication of
biomolecular patterns by reactive microcontact printing on these
reactive polymer films. In turn, the book takes advantage of the
microphase separation of diblock copolymer films to study the
fabrication of nanopatterns, which could contribute to the future
development of a model system that allows us to area-selectively
deposit and address (bio)molecules. Given its scope, the book
broadens readers' perspective on the microfabrication of
stimuli-responsive polymers.
This book provides details of the basic frameworks and
characteristics of processes occurring in electronically excited
states of small molecules, complexes, and clusters. It discusses
the perturbations in electronically excited valence states of
molecules induced by intramolecular interaction and intermolecular
interactions, which occur in collisions and optically populated,
weakly bound complexes. Further, it describes the kinetics and
mechanisms of photoprocesses in simple molecules and recombination
accompanied by radiation. The book also offers information on
general kinetics for gas-phase processes and basic theoretical
frameworks for elementary processes. It features many useful
problems, making it a valuable resource for students and
researchers in molecular spectroscopy/molecular physics and
chemical physics/physical chemistry.
This book presents recently developed computational approaches for
the study of reactive materials under extreme physical and
thermodynamic conditions. It delves into cutting edge developments
in simulation methods for reactive materials, including quantum
calculations spanning nanometer length scales and picosecond
timescales, to reactive force fields, coarse-grained approaches,
and machine learning methods spanning microns and nanoseconds and
beyond. These methods are discussed in the context of a broad range
of fields, including prebiotic chemistry in impacting comets,
studies of planetary interiors, high pressure synthesis of new
compounds, and detonations of energetic materials. The book
presents a pedagogical approach for these state-of-the-art
approaches, compiled into a single source for the first time.
Ultimately, the volume aims to make valuable research tools
accessible to experimentalists and theoreticians alike for any
number of scientific efforts, spanning many different types of
compounds and reactive conditions.
This book includes selected, peer-reviewed contributions from the
2018 International Conference on "Physics and Mechanics of New
Materials and Their Applications", PHENMA 2018, held in Busan,
South Korea, 9-11 August 2018. Focusing on manufacturing
techniques, physics, mechanics, and applications of modern
materials with special properties, it covers a broad spectrum of
nanomaterials and structures, ferroelectrics and ferromagnetics,
and other advanced materials and composites. The authors discuss
approaches and methods in nanotechnology; newly developed,
environmentally friendly piezoelectric techniques; and physical and
mechanical studies of the microstructural and other properties of
materials. Further, the book presents a range of original
theoretical, experimental and computational methods and their
application in the solution of various technological, mechanical
and physical problems. Moreover, it highlights modern devices
demonstrating high accuracy, longevity and the ability to operate
over wide temperature and pressure ranges or in aggressive media.
The developed devices show improved characteristics due to the use
of advanced materials and composites, opening new horizons in the
investigation of a variety of physical and mechanical processes and
phenomena.
Pollution has been a developing problem for quite some time in the
modern world, and it is no secret how these chemicals negatively
affect the environment. With these contaminants penetrating the
earth's water supply, affecting weather patterns, and threatening
human health, it is critical to study the interaction between
commercially produced chemicals and the overall ecosystem.
Understanding the nature of these pollutants, the extent in which
they are harmful to humans, and quantifying the total risks are a
necessity in protecting the future of our world. Emerging
Developments and Environmental Impacts of Ecological Chemistry is
an essential reference source that discusses the process of
chemical contributions and their behavior within the environment.
Featuring research on topics such as organic pollution, biochemical
technology, and food quality assurance, this book is ideally
designed for environmental professionals, researchers, scientists,
graduate students, academicians, and policymakers seeking coverage
on the main concerns, approaches, and solutions of ecological
chemistry in the environment.
Microwave-assisted Organic Synthesis: One Hundred Reaction
Procedures provides readers with a broad overview of microwave
assisted organic synthesis, enabling students and researchers alike
to produce more efficient and high yield syntheses while saving
time and resources. The work addresses key issues faced by
chemistry laboratories in academia and in industry, including an
ever increasing need for procedures which are low-waste, energy
efficient, high yield, occur over a short reaction period, and use
environmentally friendly solvents. All these factors play an
important role in the development of "green chemistry" methods,
making this book an excellent resource for any laboratory or
library.
* Provides a broad overview of microwave enhanced chemistry
* Written by internationally renowned scientists
* Includes exercises and worked problems which can support more
independent study
Lowe's new edition assumes little mathematical or physical
sophistication and emphasizes an understanding of the techniques
and results of quantum chemistry. It can serve as a primary text in
quantum chemistry courses, and enables students and researchers to
comprehend the current literature. This third edition has been
thoroughly updated and includes numerous new exercises to
facilitate self-study and solutions to selected exercises.
* Assumes little initial mathematical or physical sophistication,
developing insights and abilities in the context of actual
problems
* Provides thorough treatment of the simple systems basic to this
subject
* Emphasizes UNDERSTANDING of the techniques and results of modern
quantum chemistry
* Treats MO theory from simple Huckel through ab intio methods in
current use
* Develops perturbation theory through the topics of orbital
interaction as well as spectroscopic selection rules
* Presents group theory in a context of MO applications
* Includes qualitative MO theory of molecular structure, Walsh
rules, Woodward-Hoffmann rules, frontier orbitals, and organic
reactions
develops MO theory of periodic systems, with applications to
organic polymers.
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