www.science.dmoz2007.org

Gives mathematical measurements relating this galaxy that orbits the Milky Way. Includes history about first known discoveries and links to photo galleries.
During his third voyage in about 1503-4, Amerigo Vespucci mentioned in a letter describing the southern skies, three Canopes, two bright and one obscure. Amerigo& ,s bright Canopes are thought to be the Magellanic Clouds, LMC and SMC, while the obscure one is probably the Coalsack dark nebula. Honors include the naming of America for him, even during his lifetime, in 1507 by cartographer Martin Waldseemller. . more to come soon . Links.

Spiral galaxies with short descriptions and photos.
Of the arms for spiral galaxies. The galaxies that do not fit into these categories are classified separately as.

Research group primarily interested in high energy activities in galaxies, particularly the interplay between massive stars and the interstellar medium.

Online version of McGraw-Hill Encyclopedia of Science and Technology. Articles, current news and research updates, biographies of leading scientists through history, and internet links in a wide range

A listing of "the one hundred most important books of the millennium."

Online science source from the AAAS providing news about recently published works of researchers and scientists.
Don t Cross Your Eyes . They ll Get Stuck that Way!, a new book by myth-fighting Indiana University School of Medicine pediatricians Aaron Carroll, M.D., M.S., and Rachel Vreeman, M.D., M.S., debunks the pearls of medical wisdom that many people and even their physicians believe are true. Don t Cross Your Eyes . They ll Get Stuck that Way! is published by St. Martin Press..

Reviews and links to Amazon for some popular science books.
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Complete text of the book written by members of the National Academy of Sciences, that profiles investigations by leading young scientists.
Ulrich at the University of California in Los Angeles, and, independently, John Leibacher and Robert Stein, who is now with Michigan State University, provided a more global interpretation. Leibacher, now the director of the National Solar Observatory, says that his insight was due to a bit of theoretical serendipity, a stroke of good fortune that occurred as he was trying to simulate the 5-minute solar oscillation on a computer. Hard as OCR for page 6.A Positron Named Priscilla Scientific

Phillip Manning reviews science books for newspapers. This site contains many of those published reviews and selected essays.
Great intellectual adventure, and in the last 500 years, it has dramatically changed the way we live. Thanks to science, we can move from continent to continent with an ease that was once unimaginable, and our daily lives are comfortable in ways that were inconceivable a few generations ago. We can cure diseases that once were thought incurable, and, as a consequence, life expectancy of Americans increased 50 percent in the last century. Yet the science behind these advances remains a mystery to

Interactive (Javascript) expression of a number as a sum of two squares.

A test for the terms of a sequence being expressed by a polynomial, by Roupam Ghosh.

Activated text by Andrew Granville.
Found. If the page was present on our old web server, it is very likely still available at http oldweb.cecm.sfu.ca organics papers granville organics papers granville Binomial toppage.html.We& ,re sorry, but the page you specified cannot be found. If the page was present on our old web server, it is very likely still available at http oldweb.cecm.sfu.ca organics papers granville organics authors granville index.html.

A loosely defined group of individuals, mainly in Canada, active in research in Number Theory.
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A unified approach to covering systems, restricted sumsets and zero-sum problems by Zhi-Wei Sun.

With notes on Carmichael numbers and the life of R.D. Carmichael.

Number Theory section of the sci.math FAQ list.
Cohen A. K. Lenstra (1984) modified the APR test, making it more flexible, using Gauss sums in the proof (instead of the reciprocity law), and having the new test programmed for practical applications. It was the first primality test in existence that can routinely handle numbers of up 100 decimal digits, and it does so in about 45 seconds. Monte Carlo methods Ribenboim mentions three Monte Carlo tests, due to R. Baillie Wagstaff, Jr. (1980), R. Solovay V. Strassen (1977), and M. O. Rabin (1976,

Some notes from the MIT collection. Includes Gosper's algorithms for CF arithmetic.
Later elaborations tend to shift perspective on many items, and this elaboration will (hopefully) continue after publication, since this text is retained in machinable form. We forgive in advance anyone deterred by this wretched typography. People referred to are from the A. I. Lab.CAVEATS Some of this material is very inside -- many readers will have to excuse cryptic references. The label PROBLEM does not always mean exercise, if no solution is given, it means we couldn& ,t solve it. If you

Addresses the question whether a series of rational functions converges to a rational number.
ErrorDocument to handle the request..The requested URL infiser5.pdf was not found on this server. Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request..The requested URL Logicians Note on Importance.htm was not found on this server. Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request..

To determine linear integer dependence among numerical constants and to determine the minimal polynomial of an approximate algebraic number. Interactive or via email.

A web article with a brief history and account of their relationship with the Riemann zeta function and Fermat's Last Theorem (HTML/PS).

Examples and algorithms for computing Klein polyhedra, also known as Arnold sails or veils (voiles), by Keith Briggs.

That the Mahler measure of an algebraic number is bounded away from 1. Pages by Michael Mossinghoff, UCLA.
Product, e.g., by adding plus or minus 1 to the middle coefficient. Searches performed 1995 D 64.This strategy checks all reciprocal and antireciprocal polynomials having height one and a fixed number n of nonzero coefficients. All the known small limit points of Mahler measures are realized as limits of Mahler measures of sequences of polynomials having only 6 or 7 nonzero coefficients. Searches performed (summer, fall 1996) n max D 5,6,7 181 8,9 131 10,11 101 12,13 75 14,15 55 16,17 47 18,19

Classified by degree, then by level, then by eigenvalue, then by root number.

Michel Waldschmidt. Cetraro summer school lectures, July 2000.

Kevin Brown's collection of sci.math postings related to number theory topics.
Have seen is necessarily greater than pq. Therefore, k=1. Now recall that the square of any prime other than 3 is congruent to +1 (mod 3). It follows that if none of the primes p,q,r equals 3, the right side of the above equation is divisible by 3 but the left is not. On the other hand, if one of the primes is 3, then the left side is divisible by 3 but the right is not. Thus the equation cannot be satisfied in distinct primes (although it can be satisfied by composite numbers, and also by the

Index to articles in Eric Weisstein's MathWorld in the area of number theory.
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A paper by David M. Russinoff describing the use of the Boyer-Moore theorem prover in mechanically generating a proof of the Law of Quadratic Reciprocity. PS/PDF.

Lecture notes by Alain Connes.
Department of Mathematics, and many pages have been moved or re-named. Please try to find the page you requested by using the navigation menu to the left. If you are unable to locate the page, you may want to try the search page to locate it. If all else fails, you can contact the webmaster for help..The page you requested could not be found. We have recently released a new website for the OSU Department of Mathematics, and many pages have been moved or re-named. Please try to find the page you

Proofs along with equation solvers and graphical views written in Java.
(b^n+x) q in the relevant region. We can estimate this by looking at the area between the curves p=b^n q and p=(b^n+1) q between the specified limits. I make this to be roughly ln b 2 which, for base 10 is about 1.15. I initially found it surprising that a number would be representable as the product of two numbers in the relevant ranges in on average more than one way. After all, some of these numbers are prime or are the product of a tiny prime and a large prime so I looked a bit closer..So

Dave Rusin's guide to number theory.
Sr. B 36 (1984), 215--234. MR86g 94001 Patterson, G. W. What is a code? , Comm. ACM 3 1960 315--318. MR25 1071 Neal Koblitz, A Course in Number Theory and Cryptography , Springer Graduate Texts in Mathematics 114, 1994. Widman, Kjell-Ove Diffie-Hellman and RSA, the layman guide to public-key cryptography and its applications , Festschrift of Lennart Carleson and Yngve Domar (Uppsala, 1993), 227--248, Acta Univ. Upsaliensis Skr. Uppsala Univ. C Organ. Hist., 58, Uppsala Univ., Uppsala, 1995.

Aims to collect donations from supporters of number theory and to disburse these donations to encourage research.
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Compiled by Robert Campbell.

Email seminar on "Galoissche Theorie der p-Erweiterungen" by Helmut Koch.
If you would like to be added to the mailing list, please send us an e-mail to that effect. Franz Lemmermeyer and Farshid Hajir.

A wide selection of number theory topics compiled by Jon Perry.

Lecture notes and resources on combinatorial number theory by Terence Tao.
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Products of rational functions of p over primes, computed by Gerhard Niklasch and Pieter Moree.
Characteristic root, suitable choices for the cutoffs p1 and M and for the working precision wp (in digits), a short mnemonic where appropriate (hyperlinked back to the overview table), beginning of the sequence of zeta exponents, then the computed full-precision value. Sometimes this is followed by a modification of this value by an elementary factor to obtain the form of the constant which arises in its `natural& , context..

Related to Somos sequences and elliptic theta functions.
Centre for Experimental and Constructive Mathematics at Simon Fraser University is doing great work. A brief quote is.. issues of human perception and thought, intuition, preception and the nature of knowledge. These issues are embodied in the problem of scientific visualization... The articles Mathematics and Language by Tony Brown, and An Exploration into the Teaching and Learning of Geometry and the Possible Effects of Dynamic Geometry Software by Dave Wilson echo similar thoughts. My current

Web resources for information on Somos sequences and related topics such as elliptic divisibility sequences.
Alice T. Schafer Prize by the Association for Women in Mathematics (http www.ams ams prizebooklet-2009.pdf), awarded for excellence in mathematics by an undergraduate woman. Doris Dobi (REU 2007) was awarded the runner-up prize in the competition. Ono will be running an REU in 2009 in Number Theory. Application materials are available at (http www.math.wisc.edu ~ono reu09.html). The deadline for applications is January 31, 2009..Six of our graduate students, Samuel Eckels, Benjamin Ellison,

Algorithm and source code for the calculation of square-free numbers and gaps.

Maple worksheets, lecture notes and links to other resources by John Cosgrove.
Suppose, }{TEXT 579 19 just for th e moment }{TEXT -1 111 , that we hadn t filled the entire complex pl ane, and let us return to the above definition of the actual term } {TEXT 577 9 algebraic }{TEXT -1 123 , with its reference to intege r (or rational) coefficients. Let now make the observation that t hose coefficients are }{TEXT 578 6 merely }{TEXT -1 95 (with hin dsight) algebraic numbers of the first degree, and, in the light of th at, let us now }{TEXT 590 9 speculate }{TEXT -1 158 that we

A forum for all mathematicians who work in valuation theory or apply valuation theoretical results in their own field of research.

By Paul Garrett.
Sorry, you may have mis-typed the filename, or tried to list a directory that was not listable. Please do send me email if you try repeatedly and a link is truly broken. You might try going to my top-level page and following links downward. -paul garrett.Sorry, you may have mis-typed the filename, or tried to list a directory that was not listable. Please do send me email if you try repeatedly and a link is truly broken. You might try going to my top-level page and following links downward.

By Peter Borwein and Loki Jörgenson. Recognising number patterns visually.
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Thesis, papers, manuscripts, letters and bibliography.

The 196 Palindrome Quest and The Most Delayed Palindromic Number, by Jason Doucette.
Exists elsewhere, or contact me to let me know about this error. Thank you..

About the legacy of mining in the national parks, the environmental impacts of mining, and the hazards associated with abandoned mine lands. Many photos.

Canadian government institution that addresses the environmental concerns of the minerals and mining industries, including effluent processing, safe disposal of waste materials, and decommissioning of

The Centre, located in Western Australia, is a research hub creating smart mine lakes that are of value to communities, the environment and the economy.

Activist site describes basis for opposition to magnesite open-cut mines in the Gammon Ranges National Park in South Australia.

Describes USGS research efforts on environmental aspects of massive sulfide mineral deposits. These have a high potential for adverse environmental impact due to high sulfide content and low acid-b

About research on the hydrochemistry, hydrogeology, and treatment of mine effluents.
Teaching and research are delivered within three faculties. The faculties are groups of schools, research institutes and research centres..

An Internet framework for international co-ordination on the theme of minerals, metals and sustainable development. News and information about mining and the environment world-wide.

News and other information, including the Minewatch and Partizans archives, intended to empower activists and those affected by global mining trends, particularly in the Pacific region.
Your browser (or proxy) sent a request that this server could not understand. If you think this is a server error, please contact the webmaster..Your browser (or proxy) sent a request that this server could not understand. If you think this is a server error, please contact the webmaster..Every article appearing on this website is referenced to the Companies, Minerals and Countries mentioned within the article. On accessing the buttons at the top of the Home page (Company, Country, Mineral) you

Site provides links to organizations opposed to, and information about, the proposed Wolf River Crandon mine in Wisconsin

Monitoring Australian mining companies' impact on the environment and vulnerable communities.
Our.The primary group of people who deserve our thanks and utmost respect are the many women and men from communities who suffer the impacts of irresponsible mining activities on their daily . PHOTO Penny Tweedie Oxfam GB Ingrid Macdonald, Mining Ombudsman.The forum Tunnel Vision Women, Mining and Communities convened by Oxfam Community Aid Abroad in 2002, illustrated how women, in particular, have tended to be excluded from the economic benefits of . Rowland, C. (eds), (2002), Tunnel Vision

Nature of soils and commercial tree planting on phosphate mining clay settling pond areas. Explains challenges and procedures for achieving land reclamation of such artificially altered areas.

A public process that will evaluate the levels of metals and chemicals such as nickel, copper, cobalt and arsenic in the local environment.

Articles and other information about mine tailings management and disposal, including accidents, case studies, and announcements of conferences.

Acid rock drainage and other topics related to metals mining and the environment.

Detailed plans, pictures, data and reports of the USGS initiative to remediate the contamination left at abandoned mine sites at the Boulder River basin in southwestern Montana and the Upper Animas Ri
Cost-efficient remediation alternatives requires a basis in knowledge of the degree of contamination of the natural environment and the natural processes by which AML.affect the environment. Knowledge of background (premining) conditions and ambient (current) conditions must be defined to identify the scope of cleanup actions, to define proper cleanup targets and to establish a baseline for monitoring cleanup performance. Design of cleanup actions must consider the processes by which

Paper on visualization of the visual impacts of mining and quarrying.

Background and preliminary findings of a US-Spain study of the environmental impact of the Roman mineral industry at Plasenzuela, Extremadura, Spain. (September, 1997)
Glacial ice cores (Hong and others,1994), in Swiss and Spanish peat bogs (Shotyk and others, 1998), and in Swedish lakes. Pyatt and others (2000) have also studied the persistence of toxic metals in an area of ancient mining and smelting and the potential influence on the environment. The Plasenzuela silver-lead district in Cceres Province, Extremadura, in west-central Spain was exploited by Roman miners for roughly 100 years starting about 30-20 B.C., and by modern miners from the 1850& ,s to

List of participating companies offering astronomy products.
At CCTS, the owners, Jeff and Greta, take a hands-on approach to customer service. They will personally make sure that your order is filled promptly and courteously. You will NEVER feel that your hard earned money is spent unwisely with a company that is too busy to take the time to see that you are serviced well..

Multi-media instruction on the problem of flies with particular attention to their role in the transmission of foodborne illness.

A monthly newsletter of pest management, and environmental issues from Washington State University. Includes IPM, biocontrol, organic, and chemical management of weeds, diseases, insects, and other cr

Applications in modifying plants to provide their own crop protection or enhanced yield and quality are discussed.

Provides background information and evaluation of the safety and effectiveness of several alternative products and practices.
Agricultural, Consumer and Environmental Sciences at the University of Illinois at Urbana-Champaign. The University of Illinois provides equal opportunities in programs and employment..

Part of U.S. Department of Agriculture. Site provides extensive information on animal and plant health/disease topics, USDA regulations, control of invasive species, agricultural chemicals, and relate
Database allows customers to search for authorized fruits and vegetables by commodity or country, and quickly and easily determine the general requirements for their importation into the United States. This database will include emergency pest notifications to alert users if there is a change in the import status of a commodity or country. It also allows APHIS officials and the Department of Homeland Securitys Customs and Border Protection (CBP) agricultural inspectors to quickly determine

Offers flytraps, as an effective and environmentally friendly way to reduce horse fly and deer fly populations. Wisconsin.
Duty, attracting the biting flies in the area and capturing them. The trap is environmentally sound. It requires no smelly or messy baits. The only care required is occasionally removing the capture bottle and dumping out dead flies..Won& ,t work with insecticides. Environmentally sound. Requires no chemicals or messy baits, just a no-maintenance target..First, if you are not certain about the kind of flies that you have, select one of our biological information links and assure that your flies

The scientific support organization for the Plant Protection and Quarantine (PPQ) division of the Animal and Plant Health Inspection Service (APHIS). Works to identify and evaluate pathways used by in

Proposals, reports and results of a project funded by the USDA to develop technologies for stored product insect management.

Descriptions of the research undertaken in insect management, taxonomy, ecology, toxicology and control.

Describes cultural and biological pest control methods.

Research related to pest insects in the southwest Florida agricultural community at the Southwest Florida Research and Education Center of the University of Florida.
University of Florida - IFAS, Southwest Florida Research Education Center. 2685 State Road 29 North Immokalee, Florida 34142 Phone (239) 658-3400 Fax (239) 658-3469.University of Florida - IFAS, Southwest Florida Research Education Center. 2685 State Road 29 North Immokalee, Florida 34142 Phone (239) 658-3400 Fax (239) 658-3469.University of Florida - IFAS, Southwest Florida Research Education Center. 2685 State Road 29 North Immokalee, Florida 34142 Phone (239) 658-3400 Fax (239)

Biological alternatives to the use of poisonous chemicals. Site provides contact details.

Large collection of information sheets on insects, arachnids, and nematodes occurring in Florida, arranged by common name, scientific name, and crop or habitat.

Information on product testing and development for the pest management industry.

Information about what IRAC is with useful links, news and up coming events.

Details of his recent and current entomological research, including risk assessment for GM crops, syrphid biology and rice entomology.
Please check that the URL in the address bar does not contain any spaces. If the URL appears to be valid, it may be that the file you requested has been moved - please visit our home page, site map or search page to locate the information you require..Please check that the URL in the address bar does not contain any spaces. If the URL appears to be valid, it may be that the file you requested has been moved - please visit our home page, site map or search page to locate the information you

At University of Utah. Describes his research into insect chemical ecology, behavior and the production and perception of pheromones.

List of links recommended to anyone interested in mosquito entomology, mosquito control or just plain mosquito facts.

Offers high-quality reagents for the detection of plant diseases, and diagnostic testing services.

Summarizes major issues of biologically based pest control and profiles current products and strategies shaping the market.

The database for the Cooperative Agricultural Pest Survey (CAPS) and is maintained by the Center for Environmental and Regulatory Information Systems (CERIS).
Jeffrey W. Lotz, Florida Department of Agriculture and Consumer Services, Bugwood.Hibiscus (Pink) Mealybug (Maconellicoccus hirsutus) is an insect pest of plants, trees and shrubs. It is a native of India and was first detected in Hawaii in 1984.Encyrtid wasps are a natural predator used in biocontrol..

Links and information regarding natural pest control and environment friendly alternatives to chemicals.

Listings of jobs, equipment, companies, training and products.
Dr. Roger Johnson, Managing Director of Sorex Ltd has retired, making way for new Leadership..Feature article showing the compiled results from PCP surveys over the last year. Interesting results including choice of distributor, and opinions on IPM..Terminix UK recently announced it& ,s new identity. The organisation was acquired by Ecolab Inc, a global Sanitation and Service brand..Dr. Roger Johnson, Managing Director of Sorex Ltd has retired, making way for new Leadership..Feature article

Guidelines and information on pest and disease control and management, organised by crop plant. From University of California.
2007. Contact webmaster..

Information and links on pest control issues, integrated pest management, impacts of pesticides, and related topics.
EPA FIFRA Scientific Advisory Panel- February 9 10, 1998 Arlington, VA.January 29th, 1998 -- Overexposed Organophosphate Insecticides in Children& ,s Food -- Environmental Working Group (EWG) releases state of the art report on cummulative exposure to Organophosphates (OPs). For details on OP use on foods that account for most of the risk for children..Organic Farming Facing Choices at the Crossroads Address by Dr. Charles Benbrook before the Sharing the Lessons of Organic Farming Conference --

Promotes development and testing methodologies for crop protection policy reform, and provides information on alternative crop protection methods.
Entwicklungs konomie angeboten. Weitere spezielle Veranstaltungen, die gemeinsam mit dem Institut f r Umwelt konomik und Welthandel angeboten werden, wenden sich an Studierende des Fachbereichs Gartenbau in den beiden Studieng ngen Gartenbauwissenschaften und Pflanzenbiotechnologie sowie an die Teilnehmer des englischsprachigen Master-Studiengangs MSc in International Horticulture. Das Lehrangebot zielt darauf ab, bei den Studierenden Verst ndnis f r entwicklungspolitische Zusammenh nge zu

Specializing in links to pest control associations, education resources, government resources, manufacturers, distributors, industry news, products, online industry training and MSDS and Label viewing

From Ohio State University - a searchable database of images of insect pests, diseases and other problems of plants.

Detailed descriptions of crop diseases commonly occurring in the western corn belt. Crops covered include, corn, sorghum, wheat, soybean, dry bean, sugar beet. University of Nebraska- Lincoln.
. This site will be updated and expanded as information becomes available, as additional and better images are acquired, and as resources allow... The most critical issue for profitable management of plant diseases is obtaining a correct diagnosis. In any given year, the question is not whether or not diseases will occur in.but rather which diseases will occur and at what incidence and severity. Diagnosis of plant diseases can be difficult in the early stages of disease development. Users will

A resource site with links and information regarding pest management.

Remarks presented on behalf of Consumers Union by Dr. Charles Benbrook and Dr. Michael Hansen.
Rich Rominger at the 27th Soybean Seed Research Conference 52nd Corn Sorghum Research Conference, American Seed Trade Association Annual Meeting, Chicago, Illinois -- December 10, 1997.Pioneer Announces Decision on Herbicide Resistance in Corn DES MOINES, Iowa, Nov. 13 PRNewswire . Pioneer Hi-Bred International, Inc. (NYSE PHB) sent a letter to customers today announcing that due to the current restrictive terms proposed by Monsanto Co., the Company will not carry the Roundup herbicide

Novartis Foundation for Sustainable Development (NFSD) risk fund project. Information on the project.

About soil solarization, a non-chemical, environment-friendly method for controlling soilborne pathogens and weeds.
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Pesticide application and safety.

Agricultural regulatory affairs, field research and market development consulting providing services to the crop protection and seed industries in Canada.

A non-profit organization with the goal of recording a complete inventory of all species on Earth within 25 years.

Biology, ecology, habitat, and status of rare, threatened and endangered species of mammals and information on their native countries: biodiversity, ecosystems, population, and land use.
ENature Ecological Society of America EE Link - Endangered Species EndangeredSpecie Environment Australia - Biodiversity Group - Endangered Species - Mammals Fauna Flora International GLOBE Program (Global Learning and Observations to Benefit the Environment) Hornocker Wildlife Institute International Fund for Animal Welfare International Union for the Conservation of Nature (IUCN) (also known as the World Conservation Union) Species Survival Commission (IUCN SSC) - Specialist Groups - Mammals

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