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College Accounting 1-15 with Study Guide, Working Papers and Envelope Package, Eighth Edition
Jeffrey Slater Manufacturer: Prentice Hall ProductGroup: Book Binding: Paperback ASIN: 0131028596 |
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The Supervisor's Desktop Library (5-Volume Set)
Gene Garofalo Manufacturer: Simon & Schuster ProductGroup: Book Binding: Hardcover ASIN: 013146986X |
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The Supervisor's Desktop Library Volume 1
Gene Garofalo Manufacturer: Prentice-Hall ProductGroup: Book Binding: Hardcover ASIN: B000WV573C |
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The Supervisor's Desktop Library - Five (5) Volume Set - SEALED -Business Reference Set
Manufacturer: Prentice-Hall ProductGroup: Book Binding: Hardcover ASIN: B000I4ASK0 |
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Agroecological Innovations: Increasing Food Production with Participatory Development
Manufacturer: Earthscan Publications Ltd. ProductGroup: Book Binding: Hardcover ASIN: 185383856X |
Book Description
Currently 800 million people are undernourished, the world's food supply needs to rise significantly, yet both arable and water supplies per capita are decreasing. Not only are modern agricultural methods beyond the reach of those suffering the greatest food insecurity but they are also ecologically damaging, relying upon fossil energy and chemical inputs. "Agroecological Innovations" is a groundbreaking collection of innovative, successful and diverse approaches to agricultural development.
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Agroecological Innovations, Increasing Food Production with Participatory Development [A book review from: Biological Conservation]
R.H. Marrs Manufacturer: Elsevier ProductGroup: Book Binding: Digital ASIN: B000RR07BS |
Book Description
This digital document is a journal article from Biological Conservation, published by Elsevier in 2004. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.
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Uphoff, Norman (ed.). Agroecological Innovations: Increasing Food Production with Participatory Development.(Book Review): An article from: American Journal of Agricultural Economics
Laura McCann Manufacturer: American Agricultural Economics Association ProductGroup: Book Binding: Digital ASIN: B00082F0XC Release Date: 2005-07-31 |
Book Description
This digital document is an article from American Journal of Agricultural Economics, published by American Agricultural Economics Association on May 1, 2004. The length of the article is 1335 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser.
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Water and the Search for Life on Mars (Springer Praxis Books / Space Exploration)
David M. Harland Manufacturer: Praxis ProductGroup: Book Binding: Paperback Similar Items:
ASIN: 038726020X |
Book Description
Mars has long been believed to have been cold, dead and dry for aeons, but there is now striking new proof that not only was Mars a relatively warm and wet place in geologically recent times, but that even today there are vast reserves of water frozen beneath the planet’s surface. As well as casting fascinating new insights into Mars’ past, this discovery is also forcing a complete rethink about the mechanisms of global planetary change and the possibility that there is microbial life on Mars.
David Harland considers the issue of life on Mars in parallel with the origin of life on Earth. At the time the Viking instruments were designed, it was thought that all terrestrial life ultimately derived its energy from sunlight, and that the earliest form of life was the cyanobacteria with chlorophyll for photosynthesis. It was assumed the same would be the case on Mars and that microbial life would be on or near the surface that the Vikings had sampled.
No sooner were the results from the Viking instruments in, than it was discovered that there was an even older type of microbial life on Earth when, in 1977 ‘black smokers’ were found in volcanically active parts of the ocean floor, at depths of several kilometres. Removed from sunlight, these archaea (literally, ‘the old ones’) live off the minerals released by the hydrothermal activity. Subsequently our view of life was further revised when ‘extremophiles’ were discovered thriving in acidic, salty, alkaline, very hot, very cold and radiation soaked environments previously considered lethal. Although the Vikings had found no sign of organics, and the surface was extremely hostile, suggesting that life had never gained a foothold, the discovery of microbes living far beneath the surface of the Earth raised the possibility of life below the surface of Mars, where there may be water-ice and/or hydrothermal activity. Perhaps, because the microbes were beyond the reach of the Vikings’ instruments, the negative result was premature.
Following the negative tests for biological activity by the Vikings, NASA – in the belief that Mars was once warm and wet, as the erosional features on the surface suggest – decided to ‘chase the water’ in the hope of establishing that conditions on Mars were once suitable for life, although this would not prove that life had developed. The targets selected (from many) were what seemed to be an outflow channel, a dry lake and a patch of minerals emplaced by hydrothermal activity. In 1997 Mars Pathfinder landed in an outflow channel where it released the small Sojourner rover to perform chemical analyses of nearby rocks. NASA followed up in 2004 with the much larger Mars Exploration Rovers, which were equipped to act as mobile field geologists. One was landed in what seemed to be a dried up lake bed inside a crater, and the other set down in an area that a remote-sensing orbital survey had identified as haematite, a likely indicator of hydrothermal activity. Both of these missions have yielded evidence that conditions were once conducive to the development of life.
In parallel with these NASA projects, the European Space Agency developed the Mars Express remote-sensing orbiter, which has detected traces of methane that may have been released by microbes. If microbial life is found on Mars, will it be based on DNA? Will this indicate that life developed independently? Or that it has characteristics in common with the most ancient forms of terrestrial life? If life is found on two planets in the same planetary system, this would favour the panspermia hypothesis. And if martian life is radically different, then in light of the discovery of planetary systems around other stars, this would, as remarked by Philip Morrison of MIT, "transform life from the status of a miracle to that of a statistic". These are all questions that the exploration of Mars for life are aimed to answer.
Customer Reviews:
Stuck in the details.......2007-08-24
Mars as we now know it.......2007-02-28
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Shadow of a Star: The Neutrino Story of Supernova 1987A
Alfred K. Mann Manufacturer: W.H. Freeman & Company ProductGroup: Book Binding: Hardcover ASIN: 0716730979 |
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Annual Review of Astronomy and Astrophysics: 1980 (Annual Review of Astronomy and Astrophysics)
Manufacturer: Annual Reviews ProductGroup: Book Binding: Hardcover ASIN: 0824309189 |
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Astronomy and Astrophysics for the 1980's (Astronomy & Astrophysics for the Nineteen Eighties)
National Research Council (U. S.) , and Astronomy Survey Committee Manufacturer: National Academy Press ProductGroup: Book Binding: Paperback ASIN: 0309032490 |
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Astronomy and Astrophysics for the 1980's, Volume 2: Reports of the Panels (Astronomy & Astrophysics for the Nineteen Eighties)
Astronomy Survey Committee , and National Research Council Manufacturer: National Academies Press ProductGroup: Book Binding: Paperback ASIN: 0309033349 |
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Literature 1989-1993. Author, Subject, and Object Indexes to Volumes 49-58 (Astronomy and Astrophysics Library)
Manufacturer: Springer ProductGroup: Book Binding: Hardcover ASIN: 3540585540 |
Book Description
Astronomy and Astrophysics Abstracts aims to present a comprehensive documentation of the literature concerning all aspects of astronomy, astrophysics, and their border fields. It is devoted to the recording, summarizing, and indexing of relevant publications throughout the world. Astronomy and Astrophysics Abstracts is prepared by a special department of the Astronomisches Rechen-Institut under the auspices of the International Astronomical Union. Volume 59/60 - the fifth Cumulative Index of Astronomy and Astrophysics Abstracts - comprises author, subject, and object indexes to volumes 49 - 58. Thus, the astronomical and astrophysical literature of the five-year period 1989 1993 is covered by this volume.
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Nonequilibrium Processes in the Planetary and Cometary Atmospheres: Theory and Applications (Astrophysics and Space Science Library)
M.Y. Marov , V. Shematovich , D. Bisikalo , and Jean-Claude Gérard Manufacturer: Springer ProductGroup: Book Binding: Hardcover ASIN: 0792346866 |
Book Description
This book reviews the approach to the kinetic simulation of nonequilibrium processes in the planetary atmospheres which the authors developed and have dealt with since the 1970s. The results of this study, which are focused on the nonequilibrium collisional processes in the atmospheres of planets and comets, are thoroughly reviewed and discussed. Many specific problems of atmospheric modeling, involving numerical simulation of aeronomic processes, are addressed and compared with the available experimental data. The kinetic approach proved to be especially effective in modelling the interaction of the incident shortwave solar radiation with the rarefied gas of planetary upper atmospheres. It involves various processes of photolysis, energetic particle impacts, and numerous accompanying chemical reactions. The underlying mathematical treatment is based on the stochastic approach for the solution of the Boltzmann-type equation and implies the development of efficient algorithms for its computer simulation. New or upgraded methods and algorithms for addressing the relevant problems of non-equilibrium gas kinetics were developed and successfully implemented for the simulation of a wide range of aeronomical processes. This book is intended for professional scholars and graduate students in space sciences, planetary astronomy and aeronomy and will also be useful to some target groups dealing with mechanics, gas dynamics, and computer modeling of versatile physical processes and who wish to expand the areas of their immediate interests.
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The Role of Solar Ultraviolet Radiation in Marine Ecosystems: Proceedings of a NATO Conference held in Copenhagen, Denmark, July 28-31, 1980 (NATO Conference Series)
Manufacturer: Springer ProductGroup: Book Binding: Hardcover ASIN: 0306409097 |
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Supernovae Spectra: LA Jolla Institute, 1980 (Aip Conference Proceedings)
Meyerott Manufacturer: Amer Inst of Physics ProductGroup: Book Binding: Hardcover ASIN: 0883181622 |
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Astronomy and Astrophysics Abstracts: Literature 1980 (Astronomy and Astrophysics, 28)
S. Bohme Manufacturer: Springer ProductGroup: Book Binding: Hardcover ASIN: 0387107991 |
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Wowbugs: New Life for Life Science
Robert W. Matthews , Eric J. Pyle , and Paul H. Matthews Manufacturer: Riverview Pr ProductGroup: Book Binding: Paperback ASIN: 1888499060 |
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Wowbugs: New Life for Life Science (Grades 5 - 12) (Keyed to Process Skills and National Science Education Standards)
Robert W. Matthews Manufacturer: Riverview Press ProductGroup: Book Binding: Paperback ASIN: B000PW98TM |
Product Description
Meet Melittobia digitata, the newest members of the classpint-sized insects with 17-day life cycles, fascinating behaviors, and strange morphology! The 20-plus activities and experiments in this teacher-friendly book are the support materials you need to effectively bring new life to your life science instruction. 1) Apply concepts outlined in the National Science Education Standards 2) Use teacher-friendly, classroom-tested activities to teach essential process skills 3) Encourage and model the skills of scientific inquiry 4) Develop self-directed learners exploring research frontiers like working scientists
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Gun Dog: Revolutionary Rapid Training Method
Richard A. Wolters Manufacturer: Dutton Adult ProductGroup: Book Binding: Hardcover Similar Items:
ASIN: 0525245499 |
Customer Reviews:
Training.......2007-06-14
Gun Dog: Revolutionary Rapid Training Method.......2007-05-09
Dog Training for Beginners.......2007-04-12
Easy read.......2007-01-12
Learning Phases of the Dog........2007-01-10
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Gun Dog: Revolutionary Rapid Training Method
Richard A. Wolters Manufacturer: Dutton Adult ProductGroup: Book Binding: Hardcover Similar Items: ASIN: 0525244808 |
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Gun dog, revolutionary rapid training method.
Richard A Wolters Manufacturer: New York, Dutton [1961] ProductGroup: Book Binding: Hardcover ASIN: B000WDTLBY |
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Gun Dog: Revolutionary Rapid Training Method
Richard A. Wolters Manufacturer: E. P. Dutton ProductGroup: Book Binding: Hardcover ASIN: B000IZEHTC |
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Simple Guide to Customs and Etiquette in the Czech Republic (Simple Guides: Customs and Etiquette)
David Short Manufacturer: Global Books Ltd. (UK) ProductGroup: Book Binding: Paperback ASIN: 186034075X |
Book Description
Simple Guide to Customs & Etiquette in the Czech Republic, as with all titles in this series, offers the reader a unique focus on the customs, etiquette and way of life in the newly emerging Czech Republic, providing a wealth of 'insider' knowledge in an easily accessed, pocket book format. 18 b/w illustrations + map
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Girl, Going on 17: Pants on Fire
Sue Limb Manufacturer: Delacorte Books for Young Readers ProductGroup: Book Binding: Hardcover Similar Items:
ASIN: 038573218X Release Date: 2006-07-25 |
Book Description
It's never fun when a great summer comes to an end.Customer Reviews:
But this attempt is still worth a read.......2006-02-20
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