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This groundbreaking new guide helps you logically associate and
link symptoms to likely diagnoses/conditions-a critical skill for
passing the USMLE Step 1 Despite the recent changes to the USMLE
Step 1, it remains a very important exam for medical students. In
order to navigate the vignette-based questions, students must be
able to determine a diagnosis based on the vignette, then
understand the science behind the diagnosis-a process called
pattern recognition. This innovative guide will help you master
pattern recognition-a crucial skill to develop in order to thrive
throughout the medical school curriculum. Organized by symptom to
reflect exactly what you'll see on test day, First Aid Clinical
Pattern Recognition for the USMLE Step 1 provides overviews for
more than 50 symptoms, discussing differential diagnosis and the
principles that should inform your thinking about each symptom.
Overviews are followed by Step 1-style vignettes for every
potential diagnosis that may be included in the Step 1 exam. Then,
each vignette is followed by the diagnosis-and competing
diagnoses-along with explanations of why the patterns fit for the
correct diagnosis. Guiding principles provide important information
(such as which diagnoses are common, which are rare, which are
acute, which are chronic, etc.) to enhance the way you think about
each symptom. Each vignette contains classic history/physical exam
and lab/test findings that would be observed in a typical
presentation of the disease.
The present edited book is an attempt to update the state of art of
the knowledge on metabolism of ROS and antioxidants and their
relationship in plant adaptation to abiotic stresses involving
physiological, biochemical and molecular processes. The chapters
are much focused on the current climate issues and how ROS
metabolism can manipulate with antioxidant system to accelerate
detoxification mechanism. It will enhance the mechanistic
understanding on ROS and antioxidants system and will pave the path
for agricultural scientists in developing tolerant crops to achieve
sustainability under the changing environmental conditions. The
increase in abiotic stress factors has become a major threat to
sustainability of crop production. This situation has led to think
ways which can help to come out with potential measures; for which
it is necessary to understand the influence of abiotic stress
factors on crops performance and the mechanisms by which these
factors impact plants. It has now become evident that abiotic
stress impacts negatively on plant growth and development at every
stage of plant's life. Plants adapt to the changing environment
with the adjustment at physiological, biochemical and molecular
levels. The possible mechanisms involved in the negative effects of
abiotic stress factors are excess production of reactive oxygen
species (ROS). They alter physiological and molecular mechanisms
leading to poor performance of plants. Plants however, are able to
cope with these adverse effects by inducing antioxidant systems as
the priority. Nevertheless, the dual role of ROS has now been
ascertained which provides an evidence for regulation of plant
metabolism positively on a concentration-dependent manner. Under
conditions of high ROS production, the antioxidant system plays a
major role in diminishing the effects of ROS. Thus, ROS production
and antioxidant system are interwoven with abiotic stress
conditions. The antioxidants have the capacity to hold the
stability in metabolism in order to avoid disruption due to
environmental disturbances.
Nitric Oxide in Developing Plant Stress Resilience presents a
strong focus on genetics and molecular mechanisms, examining
crosstalk with other signaling molecules and the role this plays in
the alleviation of oxidative damage. Abiotic stress negatively
impacts plants productivity and alters the metabolism at the
cellular or whole plant level, disturbing the mineral nutrients
status, enzyme activities and osmotic homeostasis. Beginning with
the biosynthesis of NO and its mode of action, chapters review
various molecular interactions, including phytohormonal crosstalk,
ROS metabolism, post-translational modification, and nutrients
homeostasis. In addition, the book also highlights genome editing
and proteomic approaches that can be used to manipulate NO
responses. This is an essential resource for students and
researchers interested in plant physiology, biochemistry and
genetics.
Handbook of Thin Film Technology covers all aspects of coatings
preparation, characterization and applications. Different
deposition techniques based on vacuum and plasma processes are
presented. Methods of surface and thin film analysis including
coating thickness, structural, optical, electrical, mechanical and
magnetic properties of films are detailed described. The several
applications of thin coatings and a special chapter focusing on
nanoparticle-based films can be found in this handbook. A complete
reference for students and professionals interested in the science
and technology of thin films.
Plant Hormones in Crop Improvement examines the signaling pathways
and mechanisms associated with phytohormones, with particular focus
on stress resilience. The growing population of world and
unpredictable climate puts pressure on the agriculture production.
Current constraints such as increasing temperatures, drought,
salinity, cold, nutrient deficiency, along with biotic interactions
trigger exquisitely tuned responsive mechanisms in plants. The main
coordinators of all stress-related mechanisms are phytohormones,
which can be transported over long distances and play a significant
role in controlling physiological, agronomic and growth traits,
metabolites and sustained crop productivity. Therefore,
understanding the mechanisms influencing the stress responses
mediated by phytohormones is crucial to ensure the continuity of
agricultural production and food security. This book aims to
address sustainable agricultural approaches to improve biotic and
abiotic stress resilience in crop plants, covering different topics
from perception and signaling plant hormones to physiological and
molecular changes under different cues. Plant Hormones in Crop
Improvement is an essential read for students, researchers and
agriculturalists interested in plant physiology, plant genetics and
crop yield improvement.
Plants often encounter abiotic stresses including drought,
salinity, flooding, high/low temperatures, and metal toxicity,
among others. The majority of these stresses occur simultaneously
and thus limit crop production. Therefore, the need of the hour is
to improve the abiotic stresses tolerance of crop plants by
integrating physiology, omics, and modern breeding approaches. This
book covers various aspects including (1) abiotic stress responses
in plants and progress made so far in the allied areas for trait
improvements, (2) integrates knowledge gained from basic physiology
to advanced omics tools to assist new breeding technologies, and
(3) discusses key genes, proteins, and metabolites or pathways for
developing new crop varieties with improved tolerance traits.
Plants often encounter abiotic stresses including drought,
salinity, flooding, high/low temperatures, and metal toxicity,
among others. The majority of these stresses occur simultaneously
and thus limit crop production. Therefore, the need of the hour is
to improve the abiotic stresses tolerance of crop plants by
integrating physiology, omics, and modern breeding approaches. This
book covers various aspects including (1) abiotic stress responses
in plants and progress made so far in the allied areas for trait
improvements, (2) integrates knowledge gained from basic physiology
to advanced omics tools to assist new breeding technologies, and
(3) discusses key genes, proteins, and metabolites or pathways for
developing new crop varieties with improved tolerance traits.
Abiotic stresses such as drought, flooding, high or low
temperatures, metal toxicity and salinity can hamper plant growth
and development. Improving Abiotic Stress Tolerance in Plants
explains the physiological and molecular mechanisms plants
naturally exhibit to withstand abiotic stresses and outlines the
potential approaches to enhance plant abiotic stress tolerance to
extreme conditions. Synthesising developments in plant stress
biology, the book offers strategies that can be used in breeding,
genomic, molecular, physiological and biotechnological approaches
that hold the potential to develop resilient plants and improve
crop productivity worldwide. Features * Comprehensively explains
molecular and physiological mechanism of multiple abiotic stress
tolerance in plants * Discusses recent advancements in crop abiotic
stress tolerance mechanism and highlights strategies to develop
abiotic stress tolerant genotypes for sustainability * Stimulates
synthesis of information for plant stress biology for
biotechnological applications * Presents essential information for
large scale breeding and agricultural biotechnological programs for
crop improvement Written by a team of expert scientists, this book
benefits researchers in the field of plant stress biology and is
essential reading for graduate students and researchers generating
stress tolerant crops through genetic engineering and plant
breeding. It appeals to individuals developing sustainable
agriculture through physiological and biotechnological
applications.
Written by leaders in their fields, Calcium Oxalate in Biological
Systems comprehensively discusses current information about the
importance of this compound in animals, plants, fungi, and
microorganisms. Both in vivo and in vitro methods of
crystallization as well as crystallization systems are discussed.
Researchers who pioneered the field contribute their invaluable
knowledge for the first time about oxalate bacteria and their
importance. This is an essential reference for both plant and
animal scientists concerned with human and animal kidney disease.
amounts can produce a deleterious effect on animals. In an attempt
to quantify this potential for toxicity and to give sufficient
margin for safety, JECFA has introduced an acceptable daily intake
(ADI) level for food additives. For example, the ADI values granted
for saccharin, aspartame, cyclamate, acesulfame-K and sucralose are
2. 5, 40, 11,9 and 1 3. 5 mg kg- body weight per day, respectively.
Chapter 2 on regulatory aspects of low-calorie food elaborates
these points. The additives that are to be consumed in large
amounts, such as a fat replacement product like 'Olestra' or a new
bulking material like 'polydextrose', present a more complex
problem as far as the evaluation of their toxicity is concerned.
Normal safety testing of an additive, such as a high-intensity
sweetener, requires that the test animals are fed with a
sufficiently high dosage in order to produce an effect and then on
that basis an ADI value is calculated. In cases like 'Olestra' and
'polydex trose', which are not normally present in diet or
metabolised to dietary constituents, such an approach will
obviously not be applicable, or of any use, in calculating an ADI
value. Due to these factors the regulatory authorities have not yet
been able to produce any guidelines for toxicity trials for
additives that are to be taken in food in large quantities."
The Paris Framework for Climate Change Capacity Building pioneers a
new era of climate change governance, performing the foundational
job of clarifying what is meant by the often ad-hoc, one-off,
uncoordinated, ineffective and unsustainable practices of the past
decade described as 'capacity building' to address climate change.
As an alternative, this book presents a framework on how to build
effective and sustainable capacity systems to meaningfully tackle
this long-term problem. Such a reframing of capacity building
itself requires means of implementation. The authors combine their
decades-long experiences in climate negotiations, developing
climate solutions, climate activism and peer-reviewed research to
chart a realistic roadmap for the implementation of this
alternative framework for capacity building. As a result, this book
convincingly makes the case that universities, as the highest and
sustainable seats of learning and research in the developing
countries, should be the central hub of capacity building there.
This will be a valuable resource for students, researchers and
policy-makers in the areas of climate change and environmental
studies.
The impact of climate change is global both in its cause and its
effect. Thus there is a global responsibility for international
cooperation to tackle the causes through mitigation strategies such
as those agreed at the Durban Platform of December 2011. This
climate regime aims to define responsibilities, mechanisms, funding
and compliance in order to achieve a clear objective regarding the
reduction of greenhouse gas emissions. Although tackling the causes
of climate change through mitigation is necessary, it is also
essential to examine the effect of climate change and what
international cooperation can take place to ensure global
adaptation measures. This pioneering book deals exclusively with
the politics of why adaptation as a global responsibility continues
to be ignored. Scientific consensus is that the impacts of climate
change are increasing, as evident from the greater frequency,
intensity and magnitude of climate disasters in recent years. This
book asks why anticipatory and planned measures for reducing
vulnerability to the impacts of climate change should not be
regarded as a global responsibility in the same way as mitigation.
This discrimination is likely to continue unless the framing and
legal basis of adaptation can be strengthened. It is with this aim
in place that Professor Khan utilises his experience in academia
and as a negotiator to analyse the politics surrounding this
important issue. In this book the author sets out a framework for
establishing a legally-binding adaptation regime under the United
Nations Framework Convention on Climate Change, with the view to
reducing the gap between the strategic focus on mitigation and
adaptation. This is invaluable research for students researching
climate change from a variety of disciplinary perspectives,
including the politics, law and economics of the issue.
The impact of climate change is global both in its cause and its
effect. Thus there is a global responsibility for international
cooperation to tackle the causes through mitigation strategies such
as those agreed at the Durban Platform of December 2011. This
climate regime aims to define responsibilities, mechanisms, funding
and compliance in order to achieve a clear objective regarding the
reduction of greenhouse gas emissions. Although tackling the causes
of climate change through mitigation is necessary, it is also
essential to examine the effect of climate change and what
international cooperation can take place to ensure global
adaptation measures. This pioneering book deals exclusively with
the politics of why adaptation as a global responsibility continues
to be ignored. Scientific consensus is that the impacts of climate
change are increasing, as evident from the greater frequency,
intensity and magnitude of climate disasters in recent years. This
book asks why anticipatory and planned measures for reducing
vulnerability to the impacts of climate change should not be
regarded as a global responsibility in the same way as mitigation.
This discrimination is likely to continue unless the framing and
legal basis of adaptation can be strengthened. It is with this aim
in place that Professor Khan utilises his experience in academia
and as a negotiator to analyse the politics surrounding this
important issue. In this book the author sets out a framework for
establishing a legally-binding adaptation regime under the United
Nations Framework Convention on Climate Change, with the view to
reducing the gap between the strategic focus on mitigation and
adaptation. This is invaluable research for students researching
climate change from a variety of disciplinary perspectives,
including the politics, law and economics of the issue.
The Paris Framework for Climate Change Capacity Building pioneers a
new era of climate change governance, performing the foundational
job of clarifying what is meant by the often ad-hoc, one-off,
uncoordinated, ineffective and unsustainable practices of the past
decade described as 'capacity building' to address climate change.
As an alternative, this book presents a framework on how to build
effective and sustainable capacity systems to meaningfully tackle
this long-term problem. Such a reframing of capacity building
itself requires means of implementation. The authors combine their
decades-long experiences in climate negotiations, developing
climate solutions, climate activism and peer-reviewed research to
chart a realistic roadmap for the implementation of this
alternative framework for capacity building. As a result, this book
convincingly makes the case that universities, as the highest and
sustainable seats of learning and research in the developing
countries, should be the central hub of capacity building there.
This will be a valuable resource for students, researchers and
policy-makers in the areas of climate change and environmental
studies.
The most trusted name in USME review—just ask any student! First
Aid Clinical Pattern Recognition for the USMLE Step 2
CK provides the information you need to tie clinical facts
together in order to recognize patterns and build illness scripts
for various high-yield conditions. This essential resource features
classic textbook-style vignettes of syndromes and cases commonly
tested on the USMLE 2 CK. You'll learn how to determine the next
best step, perform a patient workup, and effectively manage patient
care. By presenting context that ties different symptoms, signs,
and conditions together, the text encourages you to consider a
differential diagnosis for a chief complain, explore how different
conditions may be related to one another, and more. • All
key conditions began with a high-yield overview and then move into
case vignettes for that particular disorder type • Robust
differential diagnosis sections provide targeted information on how
to narrow down a diagnosis • Case vignettes are followed by
sections on evaluation, drug treatment and key clinical
considerations • Useful illustrations and flow charts help
clarify complex concepts and processes • Separate chapters on
pediatrics, surgery and emergency medicine cover content highly
represented on the Step 2 CK exam
Written by leaders in their fields, Calcium Oxalate in Biological
Systems comprehensively discusses current information about the
importance of this compound in animals, plants, fungi, and
microorganisms. Both in vivo and in vitro methods of
crystallization as well as crystallization systems are discussed.
Researchers who pioneered the field contribute their invaluable
knowledge for the first time about oxalate bacteria and their
importance. This is an essential reference for both plant and
animal scientists concerned with human and animal kidney disease.
Audience
Applied biomathematicians, orthopedists, clinical orthopedists.
The present edited book is an attempt to update the state of art of
the knowledge on metabolism of ROS and antioxidants and their
relationship in plant adaptation to abiotic stresses involving
physiological, biochemical and molecular processes. The chapters
are much focused on the current climate issues and how ROS
metabolism can manipulate with antioxidant system to accelerate
detoxification mechanism. It will enhance the mechanistic
understanding on ROS and antioxidants system and will pave the path
for agricultural scientists in developing tolerant crops to achieve
sustainability under the changing environmental conditions. The
increase in abiotic stress factors has become a major threat to
sustainability of crop production. This situation has led to think
ways which can help to come out with potential measures; for which
it is necessary to understand the influence of abiotic stress
factors on crops performance and the mechanisms by which these
factors impact plants. It has now become evident that abiotic
stress impacts negatively on plant growth and development at every
stage of plant's life. Plants adapt to the changing environment
with the adjustment at physiological, biochemical and molecular
levels. The possible mechanisms involved in the negative effects of
abiotic stress factors are excess production of reactive oxygen
species (ROS). They alter physiological and molecular mechanisms
leading to poor performance of plants. Plants however, are able to
cope with these adverse effects by inducing antioxidant systems as
the priority. Nevertheless, the dual role of ROS has now been
ascertained which provides an evidence for regulation of plant
metabolism positively on a concentration-dependent manner. Under
conditions of high ROS production, the antioxidant system plays a
major role in diminishing the effects of ROS. Thus, ROS production
and antioxidant system are interwoven with abiotic stress
conditions. The antioxidants have the capacity to hold the
stability in metabolism in order to avoid disruption due to
environmental disturbances.
"Handbook of Thin Film Technology" covers all aspects of coatings
preparation, characterization and applications. Different
deposition techniques based on vacuum and plasma processes are
presented. Methods of surface and thin film analysis including
coating thickness, structural, optical, electrical, mechanical and
magnetic properties of films are detailed described. The several
applications of thin coatings and a special chapter focusing on
nanoparticle-based films can be found in this handbook. A complete
reference for students and professionals interested in the science
and technology of thin films.
amounts can produce a deleterious effect on animals. In an attempt
to quantify this potential for toxicity and to give sufficient
margin for safety, JECFA has introduced an acceptable daily intake
(ADI) level for food additives. For example, the ADI values granted
for saccharin, aspartame, cyclamate, acesulfame-K and sucralose are
2. 5, 40, 11,9 and 1 3. 5 mg kg- body weight per day, respectively.
Chapter 2 on regulatory aspects of low-calorie food elaborates
these points. The additives that are to be consumed in large
amounts, such as a fat replacement product like 'Olestra' or a new
bulking material like 'polydextrose', present a more complex
problem as far as the evaluation of their toxicity is concerned.
Normal safety testing of an additive, such as a high-intensity
sweetener, requires that the test animals are fed with a
sufficiently high dosage in order to produce an effect and then on
that basis an ADI value is calculated. In cases like 'Olestra' and
'polydex trose', which are not normally present in diet or
metabolised to dietary constituents, such an approach will
obviously not be applicable, or of any use, in calculating an ADI
value. Due to these factors the regulatory authorities have not yet
been able to produce any guidelines for toxicity trials for
additives that are to be taken in food in large quantities."
Abiotic stresses such as drought, flooding, high or low
temperatures, metal toxicity and salinity can hamper plant growth
and development. Improving Abiotic Stress Tolerance in Plants
explains the physiological and molecular mechanisms plants
naturally exhibit to withstand abiotic stresses and outlines the
potential approaches to enhance plant abiotic stress tolerance to
extreme conditions. Synthesising developments in plant stress
biology, the book offers strategies that can be used in breeding,
genomic, molecular, physiological and biotechnological approaches
that hold the potential to develop resilient plants and improve
crop productivity worldwide. Features * Comprehensively explains
molecular and physiological mechanism of multiple abiotic stress
tolerance in plants * Discusses recent advancements in crop abiotic
stress tolerance mechanism and highlights strategies to develop
abiotic stress tolerant genotypes for sustainability * Stimulates
synthesis of information for plant stress biology for
biotechnological applications * Presents essential information for
large scale breeding and agricultural biotechnological programs for
crop improvement Written by a team of expert scientists, this book
benefits researchers in the field of plant stress biology and is
essential reading for graduate students and researchers generating
stress tolerant crops through genetic engineering and plant
breeding. It appeals to individuals developing sustainable
agriculture through physiological and biotechnological
applications.
This book provides new contributions to the theory of inequalities
for integral and sum, and includes four chapters. In the first
chapter, linear inequalities via interpolation polynomials and
green functions are discussed. New results related to Popoviciu
type linear inequalities via extension of the Montgomery identity,
the Taylor formula, Abel-Gontscharoff's interpolation polynomials,
Hermite interpolation polynomials and the Fink identity with
Green's functions, are presented. The second chapter is dedicated
to Ostrowski's inequality and results with applications to
numerical integration and probability theory. The third chapter
deals with results involving functions with nondecreasing
increments. Real life applications are discussed, as well as and
connection of functions with nondecreasing increments together with
many important concepts including arithmetic integral mean, wright
convex functions, convex functions, nabla-convex functions, Jensen
m-convex functions, m-convex functions, m-nabla-convex functions,
k-monotonic functions, absolutely monotonic functions, completely
monotonic functions, Laplace transform and exponentially convex
functions, by using the finite difference operator of order m. The
fourth chapter is mainly based on Popoviciu and Cebysev-Popoviciu
type identities and inequalities. In this last chapter, the authors
present results by using delta and nabla operators of higher order.
This book provides new contributions to the theory of inequalities
for integral and sum, and includes four chapters. In the first
chapter, linear inequalities via interpolation polynomials and
green functions are discussed. New results related to Popoviciu
type linear inequalities via extension of the Montgomery identity,
the Taylor formula, Abel-Gontscharoff's interpolation polynomials,
Hermite interpolation polynomials and the Fink identity with
Green’s functions, are presented. The second chapter is
dedicated to Ostrowski’s inequality and results with applications
to numerical integration and probability theory. The third
chapter deals with results involving functions with nondecreasing
increments. Real life applications are discussed, as well as and
connection of functions with nondecreasing increments together with
many important concepts including arithmetic integral mean, wright
convex functions, convex functions, nabla-convex functions, Jensen
m-convex functions, m-convex functions, m-nabla-convex functions,
k-monotonic functions, absolutely monotonic functions, completely
monotonic functions, Laplace transform and exponentially convex
functions, by using the finite difference operator of order
m. The fourth chapter is mainly based on Popoviciu and
Cebysev-Popoviciu type identities and inequalities. In this last
chapter, the authors present results by using delta and nabla
operators of higher order.
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Discovery Miles 1 680
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