Archive for September, 2008

Chippewa Lake, Ohio

Tuesday, September 30th, 2008

Chippewa Lake, Ohio
Location of Chippewa Lake, Ohio
Location of Chippewa Lake, Ohio
Coordinates: 41°4?27?N 81°54?14?W? / ?other data for 41.07417 -81.90389″>41.07417, -81.90389
Country United States
State Ohio
County Medina
Area
 - Total 0.3 sq mi (0.7 km²)
 - Land 0.3 sq mi (0.7 km²)
 - Water 0.0 sq mi (0.0 km²)
Population (2000)
 - Total 823
 - Density 3,035.2/sq mi (1,171.9/km²)
Time zone Eastern (EST) (UTC-5)
 - Summer (DST) EDT (UTC-4)
ZIP code 44215
Area code(s) 330
FIPS code 39-14282

Chippewa Lake (formerly Chippewa-on-the-Lake) is a village in Medina County, Ohio, United States. It is located on Chippewa Lake, Ohio’s largest natural inland lake. The population was 823 at the 2000 census.

“Chippewa Lake” is sometimes applied to the surrounding area, even the village of Gloria Glens Park.

Contents

  • 1 Geography
  • 2 History
  • 3 Demographics
  • 4 References
  • 5 External links

Geography

Chippewa Lake is located at 41°4?27?N, 81°54?14?W (41.074039, -81.903753).

According to the United States Census Bureau, the village has a total area of 0.3 square miles (0.7 km²).

History

In the 1880s, Oscar Townsend and the Cleveland, Lorain, & Wheeling Railroad developed a prosperous vacation resort, eventually called Chippewa Lake Park, on the banks of Ohio’s largest natural lake. The Great Depression and extinction of interurban rail service crippled the park, but in 1937, Parker Beach purchased the resort, and it enjoyed a swinging Golden Age through 1969, as he kept the park’s ballroom filled with dancers and famous bands. In 1978, after more than 100 years of operation, Chippewa Lake Park was shut down and left to decay.

Demographics

As of the census of 2000, there were 823 people, 331 households, and 217 families residing in the village. The population density was 3,035.2 people per square mile (1,176.9/km²). There were 395 housing units at an average density of 1,456.8/sq mi (564.9/km²). The racial makeup of the village was 99.03% White, 0.12% African American, 0.24% Asian, 0.24% from other races, and 0.36% from two or more races. Hispanic or Latino of any race were 0.61% of the population.

There were 331 households out of which 31.4% had children under the age of 18 living with them, 50.8% were married couples living together, 10.0% had a female householder with no husband present, and 34.4% were non-families. 27.8% of all households were made up of individuals and 6.0% had someone living alone who was 65 years of age or older. The average household size was 2.49 and the average family size was 3.07.

In the village the population was spread out with 24.9% under the age of 18, 8.0% from 18 to 24, 31.7% from 25 to 44, 26.2% from 45 to 64, and 9.1% who were 65 years of age or older. The median age was 37 years. For every 100 females there were 108.4 males. For every 100 females age 18 and over, there were 104.0 males.

The median income for a household in the village was $43,667, and the median income for a family was $49,531. Males had a median income of $40,000 versus $26,667 for females. The per capita income for the village was $19,115. About 5.4% of families and 9.2% of the population were below the poverty line, including 13.3% of those under age 18 and 4.4% of those age 65 or over.

References

  • Diane Demali Francis, Chippewa Lake Park (Images of America), Arcadia Publishing, 2004, ISBN 0-7385-3258-4
  • Sharon L. Kraynek, Chippewa Lake Park (Ohio) 1800-1978, Diary of an Amusement Park, 1988
  1. ^ a b “American FactFinder”. United States Census Bureau. Retrieved on 2008-01-31.
  2. ^ Black, Leonard P. Natural Lakes in Ohio (Larger Than Five Acres), Ohio Department of Natural Resources, Division of Water, August 1991. Accessed 2007-09-24.
  3. ^ “US Gazetteer files: 2000 and 1990″. United States Census Bureau (2005-05-03). Retrieved on 2008-01-31.

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Seo Dong-Myung

Tuesday, September 30th, 2008


















Seo Dong-Myung

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Seo Dong-Myung
Personal information
Full name Seo Dong-Myung
Date of birth May 4, 1974 (1974-05-04) (age 34)
Place of birth    Samcheok, Gangwon, Korea Flag of South Korea
Height 1.96 m (6 ft 5 in)
Playing position Goalkeeper
Club information
Current club Busan I’Park
Number 1
Youth clubs
University of Ulsan
Senior clubs1
Years Club App (Gls)*
1996-1997
1998-1999
2000-2001
2002-2006
2007-Present
Ulsan Hyundai
Gwangju Sangmu
Jeonbuk Hyundai
Ulsan Hyundai
Busan I’cons
009 (0)
Not join K1
043 (1)
125 (0)
007 (0)   
National team2
1995-2001 Korea Republic 021 (0)

1 Senior club appearances and goals
counted for the domestic league only and
correct as of April 1, 2008.
2 National team caps and goals correct
as of March 29, 2008.
* Appearances (Goals)

Seo Dong-Myung (born May 4, 1974) is a South Korean football goalkeeper.

He played for several clubs, including Jeonbuk FC, Incheon United and Seongnam Illwa Chunma.

For South Korea national football team he participated at 1996 Summer Olympics and 1998 FIFA World Cup.

This biographical article related to South Korean football is a stub. You can help Wikipedia by expanding it.

Retrieved from “http://en.wikipedia.org/wiki/Seo_Dong-Myung”
Categories: Korean football biography stubs | 1974 births | Living people | South Korean footballers | South Korea international footballers | Football (soccer) goalkeepers | Olympic footballers of South Korea | Footballers at the 1996 Summer Olympics | 1998 FIFA World Cup players | Ulsan Hyundai Horang-i players | Gwangju Sangmu players | Jeonbuk Hyundai players | Busan I’Park players | K-League players

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Robert C. McNair

Tuesday, September 30th, 2008

Robert C. (Bob) McNair (born 1937 in Tampa, Florida) is an American businessman and the owner of the National Football League team, the Houston Texans in Houston, Texas and Thoroughbred horse racing’s Stonerside Stable in Paris, Kentucky.

McNair grew up in Forest City, a town of about 7,500 in the foothills of western North Carolina, and graduated from the University of South Carolina in Columbia, where he was initiated into the Sigma Chi Fraternity, in 1958 with a Bachelor of Science degree. His future wife, Janice, attended nearby Columbia College. In 1998, they established the McNair Scholar Program University of South Carolina and in 1999, Robert McNair received an honorary doctor of humane letters degree from the university.

The McNairs have been residents of Houston, Texas since 1960 where he founded cogeneration company Cogen Technologies, which was sold in 1999 to Enron. Today, McNair retains ownership in power plants in New York and West Virginia. McNair now serves as Chairman and Chief Executive Officer of The McNair Group, a financial and real estate firm that is headquartered in Houston, Texas. He is also the owner of Palmetto Partners, Ltd., a private investment company that manages the McNairs’ public and private equity investments, and is Chairman of the McNair Foundation. In June 2000, McNair formed a biotechnology investment firm, Cogene Biotech Ventures, where he serves as company chairman.

Houston Texans football club

Committed to bringing a National Football League team to the city of Houston, McNair formed Houston NFL Holdings in 1998. On October 6, 1999, the NFL announced that the 32nd NFL franchise had been awarded to McNair. His Houston Texans debuted in 2002.

Public service & recognitions

Robert McNair is a member of the Texas Business Hall of Fame and is a current or past member of the Boards of Trustees of a number of institutions including Rice University, Baylor College of Medicine, Houston Grand Opera, the Museum of Fine Arts, and other Houston area organizations. On September 12, 2007, McNair gave $100 million to Baylor College of Medicine to recruit the world’s best scientists and physicians. He is a recipient of the Anti-Defamation League’s Torch of Liberty Award. McNair is a primary backer of Sigma Chi’s Horizons leadership institute. McNair donated over $1 million towards the completion of McNair Field, which hosts his hometown Forest City Owls, a collegiate summer wooden bat team in the Coastal Plain League. McNair threw out the first pitch in the stadium’s opening night (May 29, 2008), and the Owls beat the Gastonia Grizzlies, 4-2, even turning a triple play in the 6th inning.

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ThingLab

Tuesday, September 30th, 2008

ThingLab is a visual programming environment implemented in Smalltalk and designed at Xerox PARC by Alan Borning.

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Christine, Texas

Tuesday, September 30th, 2008

Christine, Texas
Location of Christine, Texas
Location of Christine, Texas
Coordinates: 28°47?23?N 98°29?49?W? / ?data for 28.78972 -98.49694″>28.78972, -98.49694
Country United States
State Texas
County Atascosa
Area
 - Total 1.8 sq mi (4.6 km²)
 - Land 1.8 sq mi (4.6 km²)
 - Water 0.0 sq mi (0.0 km²)
Elevation 331 ft (101 m)
Population (2000)
 - Total 436
 - Density 248.0/sq mi (95.8/km²)
Time zone Central (CST) (UTC-6)
 - Summer (DST) CDT (UTC-5)
ZIP code 78012
Area code(s) 830
FIPS code 48-14860
GNIS feature ID 1354476

Christine is a town in Atascosa County, Texas, United States. The population was 436 at the 2000 census.

Contents

  • 1 Etymology
  • 2 Geography
  • 3 Demographics
  • 4 Education
  • 5 References
  • 6 External links

Etymology

In October 1910, the town of “New Artesia” was to be incorporated. When the papers were presented in Austin, the men who took them there were told that they would have to change the name since there was already a town in West Texas with that name. The men returned home, called a town meeting and asked for suggestions. Not having any luck, the city council members finally authorized their wives to choose a suitable name. The ladies renamed New Artesia “Christine” after Christine Andrews, the first baby girl born in the town. She was the daughter of City Marshall James Andrews and wife, Rieta. The corrected papers were taken back to Austin and Christine was incorporated on October 22, 1910. There is an incorrect rumor that the town was named after Dr. Charles Simmons daughter.

Geography

Christine is located at 28°47?23?N, 98°29?49?W (28.789626, -98.497018).

According to the United States Census Bureau, the town has a total area of 1.8 square miles (4.6 km²), all of it land.

Demographics

As of the census of 2000, there were 436 people, 140 households, and 116 families residing in the town. The population density was 248.0 people per square mile (95.6/km²). There were 160 housing units at an average density of 91.0/sq mi (35.1/km²). The racial makeup of the town was 78.90% White, 0.23% Asian, 14.91% from other races, and 5.96% from two or more races. Hispanic or Latino of any race were 74.54% of the population.

There were 140 households out of which 48.6% had children under the age of 18 living with them, 65.0% were married couples living together, 12.9% had a female householder with no husband present, and 17.1% were non-families. 17.1% of all households were made up of individuals and 8.6% had someone living alone who was 65 years of age or older. The average household size was 3.11 and the average family size was 3.50.

In the town the population was spread out with 37.6% under the age of 18, 6.9% from 18 to 24, 29.6% from 25 to 44, 15.8% from 45 to 64, and 10.1% who were 65 years of age or older. The median age was 30 years. For every 100 females there were 96.4 males. For every 100 females age 18 and over, there were 92.9 males.

The median income for a household in the town was $23,333, and the median income for a family was $25,375. Males had a median income of $23,333 versus $13,281 for females. The per capita income for the town was $10,465. About 34.5% of families and 38.3% of the population were below the poverty line, including 47.4% of those under age 18 and 36.2% of those age 65 or over.

Education

Christine is served by the Jourdanton Independent School District.

References

  1. ^ a b “American FactFinder”. United States Census Bureau. Retrieved on 2008-01-31.
  2. ^ “US Board on Geographic Names”. United States Geological Survey (2007-10-25). Retrieved on 2008-01-31.
  3. ^ “US Gazetteer files: 2000 and 1990″. United States Census Bureau (2005-05-03). Retrieved on 2008-01-31.

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Charlotte Jones (comics)

Tuesday, September 30th, 2008

Charlotte Jones

If this infobox is not supposed to have an image, please add “|noimage=yes”.
Publication information
Publisher Marvel Comics
First appearance X-Factor vol. 1 #51 (February 1990)
Created by Louise Simonson, Terry Shoemaker
In story information
Alter ego Charlotte Jones
Species Human Latent Mutant
Team affiliations NYPD
X-Men
Abilities unknown.

Charlotte Jones is a fictional character, a latent mutant in the Marvel Comics Universe. Her first appearance was in X-Factor vol. 1 #51.

Contents

  • 1 Fictional character biography
    • 1.1 Breaking Up Is Hard
    • 1.2 Bonding
    • 1.3 Back on the Job
  • 2 Other versions
  • 3 Footnotes

Fictional character biography

Jones was once a trauma nurse at a Brooklyn hospital. Her husband was a police officer who was killed when he was walking home from a parents’ night at Timmy’s school. They were caught in the middle of a drug war. One of the bullets nearly severed Timmy’s spine, resulting in years of physical therapy to learn to walk again. As a result of that night, Charlotte became a police officer herself. She and Timmy live with her mother in a small apartment.

It was in this capacity that Jones first met the winged mutant named Archangel, a member of the team of superhuman mutant adventurers known as X-Factor who had only recently fought off the mental manipulations of the eternal mutant Apocalypse. Archangel saved Jones from plummeting to her death after her police helicopter was struck by a news chopper, and then saved her again the next day from an ambush by a street gang. Jones was later captured by the psychic vampires known as the Ravens who sought to make Archangel one of their number by forcing him to feed on Jones’ life energy. However, Jones managed to free Archangel, and the Ravens were defeated with the assistance of X-Factor and two members of the X-Men, the mutant techno-wizard Forge and the sonic-screaming Banshee. As a result of their brief psychic linking, Archangel admitted that it was Jones’ courage that helped him overcome the Ravens’ control. In his initial visit after the vampiric incident, Archangel bonds with Timmy, promising to take him flying. He does take Carlotte flying, to work. On the way they buzz Iceman and his girlfriend, Opal. Subsequently, Jones and Archangel began to see each other socially, and the two began to fall in love, something her mother predicted would happen.

Jones later clashed with Magistrates from the island nation of Genosha who had come to the U.S. to reclaim escaped mutate Jenny Ransome. During a firefight with the Magistrates, Jones’ partner was killed. Following them into the sewers, she was saved by Forge who provided her with an X-Men training costume. This proved a snug fit but afforded Jones a great degree of resistance to physical injury.

Breaking Up Is Hard

Jones and Archangel would eventually end their relationship after Archangel rejoins the X-Men, but Jones still remained an ally to the mutant heroes. Later, after Jones had been promoted to Detective, she was forced to betray the X-Man named Iceman and the mutant doctor Cecilia Reyes to cyborg Prime Sentinels from Operation: Zero Tolerance, a government-sponsored anti-mutant strikeforce headed up by the android Bastion. Bastion had abducted Jones’ son, leaving her with no other choice. Her son was eventually rescued by members of the X-Men shortly before OZT was shut down.

Around this time, Jones decides to convey some information about a Gene Nation massacre to the X-Men. Wolverine, Storm and Cannonball show up. She discreetly ushers them into the city morgue. Supposedly all the dead people had simply stopped with no signs of death. This information comes into doubt as Wolverine soon discovers the morgue attendant himself had been killed and replaced by Gene Nation member Sack. A battle in the morgue breaks out against multiple members of Gene Nation.

Bonding

Later, while pursuing a drug pusher named Rufus Delgado, the pair unwittingly stumbled into the secret base of the Neo, a race of superior mutants who were waging a war against the X-Men. Jones and Delgado were affected by the powers of the Neo named Tartarus and his sister Elysia, which caused them to experience their greatest fear and greatest desire respectively. For Jones, it was the fear of falling victim to a criminal. For Delgado, it was his desire of gaining dominance over his long-time nemesis Jones. The result was a physical merging of the two into a two-torsoed winged demonic amalgam of a creature, with Delgado’s personality dominant. Delgado subsequently struck a secret deal with the Neo Rax, who sought to usurp control of the Neo from their then-leader Domina. After the X-Men invaded the Neo’s stronghold, Delgado was killed when he was decapitated by the feral X-Man Wolverine. A ceasefire was eventually called between the Neo and the X-Men, and Jones was restored to her normal self.

Back on the Job

Jones continues to serve as a detective with the New York Police Department, and remains a steadfast ally of the X-Men.

Sergeant Jones was with the X-Man known as Bishop when he goes to the apartment of a former mutant named Hannah Levy. She used to be able to eat only insects; she feared they had returned to eat her.

Jones is also with Bishop when he approaches the Metropolitan Correctional Facility to check on the Shi’ar Death Commados. They were being held for murdering most of the Grey family line; this was done to prevent the rise of the destructive Phoenix entity.

The Death Commandos escape. In the ensuing firefight, Jones is swatted at and seemingly into dimensional portal that the Commando Deathcloak manipulates. She is later seen recovering in the hospital during Bishop’s visit.

Other versions

Days of Future Past

Charlotte appears in the bleak Days of Future Past story as a courier for food and supplies for mutants. She is allied with Jubilee, Synch and Leech. It is hinted that her son was killed when the Sentinels took over. She is captured by Citizen V and has no choice but to betray her allies.

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Handcycle

Tuesday, September 30th, 2008

A competition handcycle


A competition handcycle

A handcycle is a type of human powered land vehicle powered by the arms rather than the legs, as on a bicycle. Most handcycles are tricycle in form, with two coasting rear wheels and one steerable powered front wheel.

Many manufacturers have designed and released hand-powered recumbent trikes, or handcycles. Handcycles are a regular sight at HPV meets and are beginning to be seen on the streets. These usually follow a delta design with front wheels driven by standard derailleur gearing powered by hand cranks. Brake levers are usually mounted on the hand holds, which are usually set with no offset rather than the 180° of pedal cranks. The entire crank assembly and the front wheel turn together, allowing the rider to steer and crank simultaneously.

Thanks to modern technology, handcycles come in a variety of styles, making them accessible to people of all abilities, including many persons with disabilities.

Fork steer handcycles represent the majority of handcycles sold. They work well for both low and high-level injuries, and most have adjustable footrests, seat angle, and come with a variety of gearing, wheel and tire configurations depending on intended use: racing, recreation or touring. Manufacturers of this type of handcycle include Invacare (Top End), Intrepid Equipment, Varna, Schmicking and Sunrise Medical (Quickie).

Lean steer handcycles are another type of handcycle. In this type of handcycle the rider leans into the turn to steer. There is a longer learning curve with lean steer handcycles, and they are significantly less stable at high speed. The lean steer system feels similar to mono skiing, using your whole body to steer the handcycle. Lean steer handcycles can work well for lower-level injuries, although some athletes with high-level disability use them. Manufacturers of this type of handcycle include Brike International Ltd. (Freedom Ryder).

Hand trike


Hand trike

Another type of lean steer hand trike has two steering rear wheels and one non-steerable powered front wheel, which is set the 180° of pedal cranks and that can be ride only one hand, thus making it easy to ride on an up-hill, and it can be ride shorter curve with the automatic rear wheels steering system.

An "off road" handcycle, designed in the Netherlands


An “off road” handcycle, designed in the Netherlands

The “off road” handcycle is a third type of handcycle. This handcycle is different from other handcycles in that there are two wheels in front and one behind and it has high gear ratio range. This gives the cycle the ability to tackle steep slopes, and permits handcycle “mountain biking.”

Handcycles have also been used for touring, and to better accommodate this interest some manufacturers incorporate mudguards and pannier cargo racks. As handcycles evolve they have become progressively lighter, and have better gearing for long climbs and long distance touring.

Handcycling is a great upper body workout and can provide a great sense of freedom for persons with disabilities. While the high cost of these cycles means that they are still relatively rare, they continue to grow in popularity.

See also

  • Bicycle
  • Quadricycle
  • Recumbent bicycle
  • Rowbike
  • Tricycle

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Special number field sieve

Tuesday, September 30th, 2008

The special number field sieve (SNFS) is a special-purpose integer factorization algorithm. The general number field sieve (GNFS) was derived from it.

The special number field sieve is efficient for integers of the form re ± s, where r and s are small (for instance Mersenne numbers).

Heuristically, its complexity for factoring an integer n is of the form:

(in O and L notations).

The SNFS has been used extensively by NFSNet (a volunteer distributed computing effort) and others to factorise numbers of the Cunningham project; for some time the records for integer factorisation have been numbers factored by SNFS.

Contents

  • 1 Overview of method
  • 2 Details of method
  • 3 Choice of parameters
  • 4 Limitations of algorithm
  • 5 References
  • 6 External links

Overview of method

The SNFS is based on an idea similar to the much simpler rational sieve; in particular, readers may find it helpful to read about the rational sieve first, before tackling the SNFS.

The SNFS works as follows. Let n be the integer we want to factor. As in the rational sieve, the SNFS can be broken into two steps:

  • First, find a large number of multiplicative relations among a factor base of elements of Z/nZ, such that the number of multiplicative relations is larger than the number of elements in the factor base.
  • Second, multiply together subsets of these relations in such a way that all the exponents are even, resulting in congruences of the form a2?b2 (mod n). These in turn immediately lead to factorizations of n: n=gcd(a+b,n)×gcd(a-b,n). If done right, it is almost certain that at least one such factorization will be nontrivial.

The second step is identical to the case of the rational sieve, and is a straightforward linear algebra problem. The first step, however, is done in a different, more efficient way than the rational sieve, by utilizing number fields.

Details of method

Let n be the integer we want to factor. We pick an irreducible polynomial f with integer coefficients, and an integer m such that f(m)?0 (mod n) (we will explain how they are chosen in the next section). Let ? be a root of f; we can then form the ring Z. There is a unique ring homomorphism ? from Z to Z/nZ that maps ? to m. For simplicity, we’ll assume that Z is a unique factorization domain; the algorithm can be modified to work when it isn’t, but then there are some additional complications.

Next, we set up two parallel factor bases, one in Z and one in Z. The one in Z consists of all the prime ideals in Z whose norm is bounded by a chosen value Nmax. The factor base in Z, as in the rational sieve case, consists of all prime integers up to some other bound.

We then search for relatively prime pairs of integers (a,b) such that:

  • a+bm is smooth with respect to the factor base in Z (i.e., it is a product of elements in the factor base).
  • a+b? is smooth with respect to the factor base in Z; given how we chose the factor base, this is equivalent to the norm of a+b? being divisible only by primes less than Nmax.

These pairs are found through a sieving process, analogous to the Sieve of Eratosthenes; this motivates the name “Number Field Sieve”.

For each such pair, we can apply the ring homomorphism ? to the factorization of a+b?, and we can apply the canonical ring homomorphism from Z to Z/nZ to the factorization of a+bm. Setting these equal gives a multiplicative relation among elements of a bigger factor base in Z/nZ, and if we find enough pairs we can proceed to combine the relations and factor n, as described above.

Choice of parameters

Not every number is an appropriate choice for the SNFS: you need to know in advance a polynomial f of appropriate degree (the optimal degree is conjectured to be \left(3 \frac{\log N}{\log \log N}\right) ^{1/3}, which is 4, 5, or 6 for the sizes of N currently feasible to factorise) with small coefficients, and a value x such that f(x) \equiv 0 \pmod N where N is the number to factorise. There is an extra condition: x must satisfy ax+b \equiv 0 \pmod N for a and b no bigger than N1 / d.

One set of numbers for which such polynomials exist are the a^b \pm 1 numbers from the Cunningham tables; for example, when NFSNET factored 3^479+1, they used the polynomial x^6+3 with x=3^80, since (3^80)^6+3 = 3^480+3 is definitely divisible by 3^479+1.

Numbers defined by linear recurrences, such as the Fibonacci and Lucas numbers, also have SNFS polynomials, but these are a little more difficult to construct. For example, F709 has polynomial n5 + 10n3 + 10n2 + 10n + 3, and the value of x satisfies F142x ? F141 = 0.

If you already know some factors of a large SNFS-number, you can do the SNFS calculation modulo the remaining part; for the NFSNET example above, 3^479+1 = (4*158071*7167757*7759574882776161031) times a 197-digit composite number (the small factors were removed by ECM), and the SNFS was performed modulo the 197-digit number. The number of relations required by SNFS still depends on the size of the large number, but the individual calculations are quicker modulo the smaller number.

Limitations of algorithm

This algorithm, as mentioned above, is very efficient for numbers of the form re±s, for r and s relatively small. It is also efficient for any integers which can be represented as a polynomial with small coefficients. This includes integers of the more general form a’re±b’sf, and also for many integers whose binary representation has low Hamming weight. The reason for this is as follows: The Number Field Sieve performs sieving in two different fields. The first field is usually the rationals. The second is a higher degree field. The efficiency of the algorithm strongly depends on the norms of certain elements in these fields. When an integer can be represented as a polynomial with small coefficients, the norms that arise are much smaller than those that arise when an integer is represented by a general polynomial. The reason is that a general polynomial will have much larger coefficients, and the norms will be correspondingly larger. The algorithm attempts to factor these norms over a fixed set of prime numbers. When the norms are smaller, these numbers are more likely to factor.

References

  1. ^ Pomerance, Carl (December 1996), “A Tale of Two Sieves”, Notices of the AMS 43(12): 1473-1485, <http://www.ams.org/notices/199612/pomerance.pdf> 
  2. ^ Franke, Jens. “Installation notes for ggnfs-lasieve4″. MIT Massachusetts Institute of Technology.

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Uroballus peckhami

Tuesday, September 30th, 2008

Uroballus peckhami
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Arachnida
Order: Araneae
Family: Salticidae
Subfamily: Marpissinae
Tribe: Simaethini
Genus: Uroballus
Species: U. peckhami
Binomial name
Uroballus peckhami
Zabka, 1985

Uroballus peckhami is a spider species of the Salticidae family (jumping spiders) that is known only from Vietnam.

This species is known only from a single female.

Contents

  • 1 Description
  • 2 Name
  • 3 Footnotes
  • 4 References

Description

The general body form is like those of other species in the genus. The carapace is dark orange. On the blackish eye area there are two dark spots. There are many white hairs on the sides. The abdomen is light grey with a dark grey spine-like pattern followed by chevrons. The legs are yellow with grey rings near the joints. The long spinnerets are also grey.

Name

The species is named after arachnologists George and Elizabeth Peckham.

Footnotes

  1. ^ a b Murphy & Murphy 2000: 289

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Zunilito

Monday, September 29th, 2008

Zunilito is a municipality in the Suchitepéquez department of Guatemala. It is situated at 790 m above sea level. It covers an area of 78 km².

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