|
Showing 1 - 25 of
52 matches in All Departments
Permaculture is an approach to sustainable living that is spreading
throughout the world. Working entirely in harmony with nature, The
Permaculture Garden shows you how to turn a bare plot into a
beautiful and productive garden. Learn how to plan your garden for
easy access and minimum labour; save time and effort digging and
weeding; recycle materials to save money; plan crop successions for
year-round harvests; save energy and harvest water; and garden
without chemicals by building up your soil and planting in
beneficial communities. Full of practical ideas for structures,
children's areas and garden designs, this perennial classic, first
published in 1994, is guaranteed to inspire, inform and entertain.
The two-stroke engine has been developed to a degree that was not
thought possible a few years ago. One of its virtues is that it is
mechanically very simple, which is a contributing factor to its
widespread use and varied application. Here, engine-tuning expert
A. Graham Bell takes the reader through the various modifications
that can be made to a two-stroke and its components to give maximum
useable power output and mechanical reliability. 'the words happily
avoid textbook syndrome'
First published more than 30 years ago and in continuous print ever
since, this remains one of the most comprehensive references
available to the enthusiast engine tuner and race engine builder.
Drawing on the author’s many years of practical experience in
tuning and modifying high-performance road, rally and race units,
every aspect of an engine’s operation is explained and analysed.
Detailed modifications and improvements are suggested and described
in the author’s practical, down-to-earth style, making this book
essential reading for anyone involved in building high-performance
engines.
Originally published in 1982, The Masterpiece of Nature examines
sex as representative of the most important challenge to the modern
theory of evolution. The book suggests that sex evolved, not as the
result of normal Darwinian processes of natural selection, but
through competition between populations or species - a hypothesis
elsewhere almost universally discredited. The book also discusses
the nature of sex and its consequences for the individual and for
the population, as well as various other theories of sex. Since the
value of these theories is held to reside wholly in their ability
to predict the patterns of sexuality observed in nature, the book
seeks to provide an extensive review of the circumstances in which
sexuality is attenuated or lost throughout the animal kingdom, and
these facts are then used to weigh up the merits of the rival
theories. This book will be of interest to researchers in the area
of genetics, ecology and evolutionary biology.
Originally published in 1982, The Masterpiece of Nature examines
sex as representative of the most important challenge to the modern
theory of evolution. The book suggests that sex evolved, not as the
result of normal Darwinian processes of natural selection, but
through competition between populations or species - a hypothesis
elsewhere almost universally discredited. The book also discusses
the nature of sex and its consequences for the individual and for
the population, as well as various other theories of sex. Since the
value of these theories is held to reside wholly in their ability
to predict the patterns of sexuality observed in nature, the book
seeks to provide an extensive review of the circumstances in which
sexuality is attenuated or lost throughout the animal kingdom, and
these facts are then used to weigh up the merits of the rival
theories. This book will be of interest to researchers in the area
of genetics, ecology and evolutionary biology.
Thisbookhasbeenwritten tomake a pointand tofulfill a need. Thepoint
is that the importance and the distinctiveness of the process of
selection have been undervalued by most biologists. There is,
consequently, the need for a book that describes the principles of
selection in a simple but reasonably comprehensive way. Selection
Is a Distinct Kind ofProcess Although we are now well into the
second century of Darwinism, the theorythatDarwinand
Wallaceannouncedin 1858hasnotyetmademuch progress beyond a small
coterie of professional biologists. The reason is thatit
isjarringlyunfamiliar toournormalexperienceofhow things come to be.
Few ofus would be able to design a light bulb or a lathe, still
fewer the computerand itsattendant softwarewithwhich this sentence
is being written. But we all have a clear idea of what is meant by
"design," and we readily, too readily, transfer this notion to the
natural world. A light bulb or a lathe are prefigured in the mind,
and constructed according to a plan. It is entirely reasonable to
assume that beetles and daisies must be constructed after the same
fashion, especially because they are much
morecomplicatedthananythingthathumaningenuityhassofarmanaged to
devise. There is, however, a second route to complex organization,
throughtheselectionofrandomvariantsthatpropagatenearlyexactcopies
ofthemselves. Itisofverylittleconsequenceinourdailylives,
becauseifis somuchmorelaboriousandexpensivethandeliberatedesign.
However, it isanotherwayofconstructingthings. Indeed, sofarasIknow,
itistheonly other way of constructing things that we have ever been
able to imagine.
The deep sea covers more than half the surface of the Earth, but
until the circumnavigation made by the HMS Challenger almost
nothing was known about the animals that live there. Full Fathom
5000 gives an account of the remarkable discoveries that were made
during the voyage and describes the strange and bizarre creatures
that live in perpetual darkness a kilometer or more below the
surface of the sea. Until the early 1870s, very little was known
about the creatures lurking in the depths of our oceans. People had
found a few things trapped in fishing gear or caught on the anchors
of ships, but those who tried to venture to the bottom of the
seafloor often died before they made it there. The first systematic
investigation into life in our oceans was made during the
circumnavigation of the HMS Challenger. Scientists credit this
voyage as the beginning of modern oceanography, and the story of it
is full of twists and turns. It led to the discovery of a whole new
fauna previously unknown, which Full Fathom 5000 describes for the
first time in one place for readers. In this book, Graham Bell
takes readers through the voyage station by station, following the
progress of the expedition and introducing some of the new and
strange animals that were hauled up from the depths of the ocean
and seen by human eyes for the first time. You will meet, among
others, the ugliest fish in the world, flesh-eating clams, dwarf
males, sea devils, and an octopus that wears lipstick. The book
begins with a description of the first attempts scientists made to
explore the deep sea, leading up to the plan for a voyage around
the world on the HMS Challenger. The chapters take readers from
station to station, though all of the world's oceans, visiting
every continent and crossing the Equator five times. Bell details
what was discovered during hundreds of stops to take samples, and
he describes around a hundred stations where remarkable animals
were hauled from the sea. The book ends with a description of what
came after the end of this journey, explaining what they did with
the animals that were collected and what became of the scientists
and sailors who planned the voyage and traveled together around the
world.
The Permaculture Way shows us how to consciously design a
lifestyle which is low in environmental impact and highly
productive. It demonstrates how to meet our needs, make the most of
resources by minimizing waste and maximizing potential, and still
leave the Earth richer than we found it.
For businesses to grow and be successful their approach to
resilience must be defined by a holistic and risk-focused outlook,
rather than one which is narrow and dominated by event-oriented
continuity practices. The Organizational Resilience Handbook shows
that success is as much to do with innovation and the speed with
which new products are brought to market as it is with
organizations having to deal with unexpected crisis situations. It
comprehensively covers the full breadth and depth of the field and
introduces related topics such as security, safety, e-commerce,
emerging technologies and customer experience. Through adopting a
strategic and progressive approach, practitioners can apply the
book's methodology to develop an in-depth understanding of
resilience within their own organization and use it to effectively
engage with the board and senior management in developing
strategies for achieving greater resilience capability. A range of
high-profile case studies, such as Mercedes, the UK's National
Health Service, Alibaba and BP, help to illustrate the concept of
resilience by detailing characteristics and behaviours which
confirm its meaning. The Organizational Resilience Handbook is a
practical guide to self-assessment, benchmarking performance and
implementing resilience frameworks in any organization.
For businesses to grow and be successful their approach to
resilience must be defined by a holistic and risk-focused outlook,
rather than one which is narrow and dominated by event-oriented
continuity practices. The Organizational Resilience Handbook shows
that success is as much to do with innovation and the speed with
which new products are brought to market as it is with
organizations having to deal with unexpected crisis situations. It
comprehensively covers the full breadth and depth of the field and
introduces related topics such as security, safety, e-commerce,
emerging technologies and customer experience. Through adopting a
strategic and progressive approach, practitioners can apply the
book's methodology to develop an in-depth understanding of
resilience within their own organization and use it to effectively
engage with the board and senior management in developing
strategies for achieving greater resilience capability. A range of
high-profile case studies, such as Mercedes, the UK's National
Health Service, Alibaba and BP, help to illustrate the concept of
resilience by detailing characteristics and behaviours which
confirm its meaning. The Organizational Resilience Handbook is a
practical guide to self-assessment, benchmarking performance and
implementing resilience frameworks in any organization.
When Brian de Jongh's two classic Companion Guides, Southern Greece
and Mainland Greece, were first published they were greeted with
acclaim and immediately established themselves as essential guides.
They have now been combined into this single volume, covering the
whole of the Greek mainland. This new edition has been thoroughly
revised by John Gandon (Brian de Jongh's nephew) and Geoffrey
Graham-Bell, taking into account both new archaeological
discoveries and recent development. Brian de Jongh combined an
expert knowledge of history, archaeology and mythology with a
profound understanding of the Greek people and a feeling for the
landscape which inspired their myths and monuments: he describes a
country that he loved and much of which Pausanias, writing almost
two thousand years ago, would still recognise. This book is, more
than ever, the most indispensable of all modern guides to Greece.
Thisbookhasbeenwritten tomake a pointand tofulfill a need. Thepoint
is that the importance and the distinctiveness of the process of
selection have been undervalued by most biologists. There is,
consequently, the need for a book that describes the principles of
selection in a simple but reasonably comprehensive way. Selection
Is a Distinct Kind ofProcess Although we are now well into the
second century of Darwinism, the theorythatDarwinand
Wallaceannouncedin 1858hasnotyetmademuch progress beyond a small
coterie of professional biologists. The reason is thatit
isjarringlyunfamiliar toournormalexperienceofhow things come to be.
Few ofus would be able to design a light bulb or a lathe, still
fewer the computerand itsattendant softwarewithwhich this sentence
is being written. But we all have a clear idea of what is meant by
"design", and we readily, too readily, transfer this notion to the
natural world. A light bulb or a lathe are prefigured in the mind,
and constructed according to a plan. It is entirely reasonable to
assume that beetles and daisies must be constructed after the same
fashion, especially because they are much
morecomplicatedthananythingthathumaningenuityhassofarmanaged to
devise. There is, however, a second route to complex organization,
throughtheselectionofrandomvariantsthatpropagatenearlyexactcopies
ofthemselves.
Itisofverylittleconsequenceinourdailylives,becauseifis
somuchmorelaboriousandexpensivethandeliberatedesign. However,it
isanotherwayofconstructingthings. Indeed, sofarasIknow, itistheonly
other way of constructing things that we have ever been able to
imagine.
This is the first detailed treatment of the long-standing,
previously unresolved controversy surrounding the nature of
senescence in clonal cultures. Part historical review of the
literature, part detective story, Sex and Death in Protozoa
presents a comprehensive but entertaining discussion of the
sometimes contradictory evidence for protozoan senescence and the
rejuvenating effects of sex in these organisms. Drawing on Hermann
Muller's "ratchet model," Dr. Bell demonstrates in a quantitative
fashion how genetic recombination (an intrinsic part of the sexual
process) can eliminate the deleterious effects of accumulated
mutations in clonal cultures and provide the rejuvenating effects
associated with mating. This well written account by one of the
leading authorities in the field is indispensable reading for those
interested in the genetics and cell biology of protozoa, and more
generally, those researchers and students interested in the
phenomenon of senescence.
This textbook gives a complete and easy-to-use account of the basic
principles governing the central concept of evolutionary theory:
selection. It describes how the experimental study of evolution has
elucidated the process of selection and how it drives evolutionary
change. Graham Bell, an internationally recognized evolutionary
biologist, has written a simple text that avoids mathematical
arguments or technical details, while giving a rigorous
introduction to the field. The book is organized as a series of
short sections, each designed to make a particular point, and
illustrated whenever possible by experimental results. The Basics
of Selection is the only textbook to give a comprehensive coverage
of the process of selection. Its simple style and logical
organization makes it readily accessible to all undergraduate and
graduate students taking courses in evolution, evolutionary or
ecological genetics, or any allied field in biology.
This is the first detailed treatment of the long-standing,
previously unresolved controversy surrounding the nature of
senescence in clonal cultures. Part historical review of the
literature, part detective story, Sex and Death in Protozoa
presents a comprehensive but entertaining discussion of the
sometimes contradictory evidence for protozoan senescence and the
rejuvenating effects of sex in these organisms. Drawing on Hermann
Muller's "ratchet model," Dr. Bell demonstrates in a quantitative
fashion how genetic recombination (an intrinsic part of the sexual
process) can eliminate the deleterious effects of accumulated
mutations in clonal cultures and provide the rejuvenating effects
associated with mating. This well written account by one of the
leading authorities in the field is indispensable reading for those
interested in the genetics and cell biology of protozoa, and more
generally, those researchers and students interested in the
phenomenon of senescence.
|
The Volta Review; Volume 20 (Paperback)
Volta Bureau (U.S.); Created by Volta Speech Association for the Deaf (, Alexander Graham Bell Association for T
|
R1,070
Discovery Miles 10 700
|
Ships in 10 - 15 working days
|
|
You may like...
Faith and Practice HC
Northern Yearly Meeting F & P Committee, Kathy White, …
Hardcover
R749
R665
Discovery Miles 6 650
InvestiGators
John Patrick Green
Paperback
R288
R234
Discovery Miles 2 340
|