Schoolgirl 'wanted to lose virginity before Large Hadron Collider caused end of world'

The girl, who is aged between 13 and 15, had heard rumours that particle accelerator under the Franco-Swiss border would bring about Armageddon when it was switched on last September. At the time leading scientists including Prof Stephen Hawking were forced to deny claims that the £4.4bn accelerator would generate a black hole capable of swallowing up the earth. In the event the collider kicked into life peacefully, although it has since been beset by technological problems. But police in Brisbane, Australia believe that the teenage girl was so scared by the doomsday speculation that she agreed to have under-age sex with a boy in their school lavatories. Her fears came to light after their sex acts were filmed by another boy at the school, with the footage circulated among pupils via their mobile phones. Police have launched an investigation  under child pornography laws , although The Courier-Mail newspaper reported that they did not expect to bring any charges.

El agujero negro más lejano tiene una galaxia enorme a su alrededor

El agujero negro más lejano que se conoce, un objeto supermasivo situado a 12.800 millones de años luz de la Tierra, tiene alrededor una galaxia tan grande como nuestra Vía Láctea, algo sorprendente en el universo primitivo tan joven ( sólo 840 millones de años después del Big Bang ), dicen los científicos.  La galaxia y el agujero negro, que tiene al menos mil millones de veces más materia que el Sol, debieron formarse muy rápidamente en el cosmos primitivo , dice Tomotsugu Goto ( Universidad de Hawai ), líder de esta investigación, en la que participan, además, cuatro astrofísicos de instituciones japonesas. De hecho, las observaciones se realizaron en agosto del año pasado con el gran telescopio nipón Subaru, ubicado en el observatorio de Mauna Kea ( Hawai ), sobre todo para probar un nuevo sensor ( CCD ) avanzado instalado en una de sus cámaras.

Rafael Cadenas agradece Premio FIL de Literatura

El poeta venezolano recibirá el reconocimiento dotado con 150 mil dólares que busca destacar al autor que haya aportado una valiosa obra de creación, en cualquier género literario

Luego de que el jurado decidió que el poeta venezolano Rafael Cadenas sea quien se lleve el Premio FIL de Literatura en Lenguas Romances 2009, el vate agradeció la distinción vía telefónica.

Cadenas, quien recibirá el galardón dotado con 150 mil dólares en el marco de la Feria Internacional del Libro de Guadalajara, el 28 de noviembre próximo, manifestó que tiene muchas cosas que agradecerle a México y dijo estar muy contento con el Premio.

Autor de una obra marcada por una continua meditación sobre la relación entre ética, lenguaje y poesía, el escritor sudamericano nacido en Barquisimeto en 1930, aseguró en entrevista, desde Caracas, que lo que  brota ahora en mí es la palabra gracias .

Cadenas también habló de su relación con México y sus autores y recordó que su obra completa está publicada en el Fondo de Cultura Económica, que este día se sumó a las felicitaciones para este autor.

El acta del jurado, que fue leída por Gustavo Guerrero, destacó a Cadenas como  una de las voces más reconocidas de la poesía latinoamericana contemporánea .

Señaló que su obra  encarna hoy para los más jóvenes el horizonte de una palabra que se aleja del lirismo tradicional y trae consigo el imperativo de darle voz a aquello que, de otro modo, ya no encuentra espacios para decirse en nuestra época .

Dotado con 150 mil dólares y convocado por la Asociación Civil del Premio de Literatura Latinoamericana y del Caribe Juan Rulfo, el Premio FIL de Literatura en Lenguas Romances busca reconocer a un escritor que haya aportado una valiosa obra de creación, en cualquier género literario.

AAAI Fall Symposium - Nov. 5 - 7, 2009 - Arlington, VA

Complex Adaptive Systems and the Threshold Effect: Views from the Natural and Social Sciences

Most interesting phenomena in natural and social systems include constant transitions and oscillations among their various phases. Wars, companies, societies, markets, and humans rarely stay in a stable, predictable state for long. Randomness, power laws, and human behavior ensure that the future is both unknown and challenging. How do events unfold ? When do they take hold ? Why do some initial events cause an avalanche while others do not ? What characterizes these events ? What are the thresholds that differentiate a sea change from a non-event ?

Complex Adaptive Systems have proven to be a powerful tool for exploring these and other related phenomena. We characterize a general CAS model as having a large number of self-similar agents that:

1. utilize one or more levels of feedback;
2. exhibit emergent properties and self-organization; and
3. produce non-linear dynamic behavior.

Advances in modeling and computing technology have led not only to a deeper understanding of complex systems in many areas, but they have also raised the possibility that similar fundamental principles may be at work across these systems, even though the underlying principles may manifest themselves differently.

Econophysicist Predicts Date of Chinese Stock Market Collapse

The Shanghai Composite Index was supposed to burst before July 27 but didn't. A few days after that deadline, however, it dropped by 20 percent. Coincidence ?.

Last month, we looked at a prediction that the Shanghai Composite stock market index was about to crash. The forecast was made by a team lead by the econophysicist Didier Sornette at the Swiss Federal Institute of Technology in Zurich, who has made a study of economic bubbles and how they burst. His thinking is that bubbles are the result of some kind of feedback mechanism that creates faster-than-exponential growth. This kind of growth rate is straightforward to measure, and so bubbles should be easy to identify. In July, he and his buddies pointed out that the Shanghai Composite stock market index was following exactly this kind of trend. But they also made an extraordinary prediction. They said that this bubble would burst between July 17 and 27.

IBM looks to DNA to sustain Moore's Law

Low concentrations of triangular DNA origami bind to wide lines on a lithographically patterned surface. Credit: PRNewsFoto/IBM.

As chip geometries get infinitesimally small, IBM is looking to DNA to make the manufacture of future chips feasible. On Monday, IBM researchers and collaborator Paul W.K. Rothemund, of the California Institute of Technology, announced an advancement of a method to arrange DNA origami structures on surfaces compatible with today's semiconductor manufacturing equipment.  The cost involved in shrinking (chip) features to improve performance is a limiting factor in keeping pace with Moore's Law and a concern across the semiconductor industry,  said Spike Narayan, a manager in the Science & Technology division of IBM Research, in a statement. Moore's Law, named after Intel co-founder Gordon Moore, states that the number of transistors that can be placed on an integrated circuit doubles roughly every two years. For more than four decades, chip manufacturers have been able to consistently shrink chip geometries, allowing Moore's Law to remain on track.

A coincidence of errors: Critical exponent for the quantum Hall transition

One of the most studied problems in the last twenty years is the integer quantum Hall effect, which describes the response of electrons confined in two-dimensions to a strong perpendicular magnetic field: The electrons move in circular orbits that fill bands, called Landau levels, and the Hall conductance ( i.e., the conductance perpendicular to an induced current ) of the electrons is quantized.

Like any phase transition, the change of the Hall conductance between quantized values ( as the electrons are moved between Landau levels by an external voltage or magnetic field ) can be described by a critical exponent, ν. Both numerical calculations and experiment agree fairly well about the value of ν.

But as Keith Slevin at Osaka University and Tomi Ohtsuki at Sophia University, both in Japan, argue in a Rapid Communication appearing in Physical Review B, this may be because of a coincidence of errors. Namely, numerical calculations have so far ignored Coulomb interactions between electrons, which should in fact be important, while the experimentally measured value of ν is based on approximations.

Quarks, gluons and corroborating E = mc2

It's taken more than a century, but Einstein's celebrated formula E = mc² has finally been corroborated, thanks to a heroic computational effort by French, German and Hungarian physicists. A brainpower consortium led by Laurent Lellouch of France's Centre for Theoretical Physics, using some of the world's mightiest supercomputers, have set down the calculations for estimating the mass of protons and neutrons, the particles at the nucleus of atoms.

Escuela Franco-Venezolana de Nanotecnología 2009 ( ENANO2009 ) del 2 al 6 de noviembre de 2009 en Caracas y Choroní, Venezuela

Contacto

http://www.redvnano.org/congreso/contactanos.html

La Red Venezolana de Nanotecnología está ayudando a organizar la Escuela Franco-Venezolana de Nanotecnología 2009 ( ENANO2009 ) del 2 al 6 de noviembre de 2009 en Caracas y Choroní ( Venezuela ), bajo el patrocinio de:

• FONACIT
• Programa de Cooperación de Postgraduados ( PCP )
• Embajada de Francia en Caracas
• Fundación IDEA
• Academia de Ciencias Físicas, Matemáticas y Naturales
• Universidad Central de Venezuela

Para el primer día del evento ( 2/11/09 ) se ha programado una jornada en la Fundación IDEA ( Caracas, Venezuela ) en la cual varios investigadores presentarán los desarrollos obtenidos fruto de la cooperación franco-venezolana en nanociencia y nanotecnología, gracias al apoyo de las herramientas de cooperación científica entre estos dos países.

El Comité Organizador de la ENANO2009 también ha programado sesiones de cursos, charlas y carteles del 3 al 6 de noviembre de 2009. Esta segunda parte de la Escuela tendrá lugar en Choroní, Edo. Aragua. Las sesiones van dirigidas a estudiantes e investigadores sensibles al desarrollo de estos conocimientos en Venezuela.

Se programarán además mesas de trabajo sobre aspectos asociados al programa de doctorado interinstitucional de nanotecnología que la Red se encuentra promoviendo, la cooperación nacional e internacional en actividades de I+D+i dirigidas a atender los problemas de interés nacional, la definición de mecanismos que faciliten la comunicación entre el sector científico, productivo y la sociedad en general.

Formalismo de Keldysh (Keldysh Technique)

This technique provides the correct evaluation of the quantum mechanical average of an observable. It means that there is not any assumption about the final system state whenever we perform the above mentioned average. As a consequence, it is a suitable tool to study small systems in contact with macroscopic systems which are in "different" thermodynamic equilibrium states.

See the original Keldysh's papers:

• L. V. Keldysh, ZhEFT 47, 1515 (1964)
• L. V. Keldysh, Soviet Physics JEPT 20, 1018 (1965)

Drop in world temperatures fuels global warming debate

Official government measurements show that the world's temperature has cooled a bit since reaching its most recent peak in 1998. That's given global warming skeptics new ammunition to attack the prevailing theory of climate change. The skeptics argue that the current stretch of slightly cooler temperatures means that costly measures to limit carbon dioxide emissions are ill-founded and unnecessary. Proposals to combat global warming are "crazy" and will "destroy more than a million good American jobs and increase the average family's annual energy bill by at least $1,500 a year," the Heartland Institute, a conservative research organization based in Chicago, declared in full-page newspaper ads earlier this summer. "High levels of carbon dioxide actually benefit wildlife and human health," the ads asserted.

DNA Evidence Can Be Fabricated, Scientists Show

Scientists in Israel have demonstrated that it is possible to fabricate DNA evidence, undermining the credibility of what has been considered the gold standard of proof in criminal cases. The scientists fabricated blood and saliva samples containing DNA from a person other than the donor of the blood and saliva. They also showed that if they had access to a DNA profile in a database, they could construct a sample of DNA to match that profile without obtaining any tissue from that person. “You can just engineer a crime scene,” said Dan Frumkin, lead author of the paper, which has been published online by the journal Forensic Science International: Genetics. “Any biology undergraduate could perform this.”

Organic food is no healthier, study finds

Organic food has no nutritional or health benefits over ordinary food, according to a major study published Wednesday. Researchers from the London School of Hygiene & Tropical Medicine said consumers were paying higher prices for organic food because of its perceived health benefits, creating a global organic market worth an estimated $48 billion in 2007.

Geologist Ian Plimer: Global warming is the new religion of First World urban elites

So global warming, says Plimer, is something humans should welcome and embrace as a harbinger of good times to come.

Ian Plimer has outraged the ayatollahs of purist environmentalism, the Torquemadas of the doctrine of global warming, and he seems to relish the damnation they heap on him. Plimer is a geologist, professor of mining geology at Adelaide University, and he may well be Australia's best-known and most notorious academic. Plimer, you see, is an unremitting critic of "anthropogenic global warming" -- man-made climate change to you and me -- and the current environmental orthodoxy that if we change our polluting ways, global warming can be reversed. It is, of course, not new to have a highly qualified scientist saying that global warming is an entirely natural phenomenon with many precedents in history. Many have made the argument, too, that it is rubbish to contend human behaviour is causing the current climate change. And it has often been well argued that it is totally ridiculous to suppose that changes in human behaviour -- cleaning up our act through expensive slight-of-hand taxation tricks -- can reverse the trend.

World's tiniest lamp spans quantum and classical physics

The smallest ever incandescent lamp, made using a single carbon nanotube, has been created by physicists in the US. At 1.4 micrometres long and just 13 nanometres wide, the filament is invisible to the naked eye until it is switched on. Chris Regan's team at the University of California, Los Angeles attached a palladium and gold electrode to each end of the carbon nanotube, which spans a tiny hole in a silicon chip and is held in a vacuum. When electricity runs along the nanotube it heats up and begins to glow, releasing millions of photons every second, of which a few thousand reach the eye. "That makes the light relatively easy to see," says Regan. "Your eye is nearly single-photon sensitive." But it would make a poor reading lamp, he joke

Memristor minds: The future of artificial intelligence

In 1971, Leon Chua had that feeling. A young electronics engineer with a penchant for mathematics at the University of California, Berkeley, he was fascinated by the fact that electronics had no rigorous mathematical foundation. So like any diligent scientist, he set about trying to derive one. And he found something missing: a fourth basic circuit element besides the standard trio of resistor, capacitor and inductor. Chua dubbed it the "memristor". The only problem was that as far as Chua or anyone else could see, memristors did not actually exist.

Humor In The Workplace

This is a sources sought notice and not a request for quotations. The purpose of this announcement is to seek qualified contractors with the capability to provide presentations for The Department of Treasury, Bureau of the Public Debt (BPD), Management Meeting with experience in meeting the objectives as described herein.

The Contractor shall conduct two, 3-hour, Humor in the Workplace programs...

A Brief Outline of the Development of the Theory of Relativity By Prof. A. Einstein

There is something attractive in presenting the evolution of a sequence of ideas in as brief a form as possible, and yet with a completeness sufficient to preserve throughout the continuity of development. We shall endeavour to do this for the Theory of Relativity, and to show that the whole ascent is composed of small, almost self-evident steps of thought. The entire development starts off from, and is dominated by, the idea of Faraday and Maxwell, according to which all physical processes involve a continuity of action (as opposed to action at a distance), or, in the language of mathematics, they are expressed by partial differential equations. Maxwell succeeded in doing this for electro-magnetic processes in bodies at rest by means of the conception of the magnetic effect of the vacuum-displacement-current, together with the postulate of the identity of the nature of electro-dynamic fields produced by induction, and the electro-static field.

Electrons in graphene: an interacting fluid par excellence

Ever since it was shown that graphene—a single layer of carbon atoms—could be isolated from graphite, it has occupied a center stage of condensed matter physics. The popularity of graphene is rooted in the unusual nature of its low-energy excitations: near the Fermi level, the electron energies scale linearly with their momenta. This means that the electrons can be described as massless fermions, though with a velocity of about 300 times less than the velocity of light. The linear dispersion relation also implies a vanishing density of single-particle states at the Fermi level, which should make the effects of the Coulomb interaction between electrons weak.

40+ Excellent Freefonts For Professional Design

The importance of typography in design can’t be overestimated. The accuracy, precision and balance of geometric forms can give letters the elegance and sharpness they deserve. Besides, elegant fonts can help to convey the message in a more convenient way. In fact, while there are many excellent professional fonts (we’ve presented some of them in our article 80 Beautiful Typefaces For Professional Design) there are literally thousands of free low-quality fonts which you would never use for professional designs.