Technology – Page 585 – Shamskm: A site to exchange knowledge and solutions

Flawed Diamonds: Gems for New Technology

Using ultra-fast laser pulses, a team of researchers led by UA assistant professor Vanessa Huxter has made the first detailed observation of how energy travels through diamonds containing nitrogen-vacancy centers – promising candidates for a variety of technological advances such as quantum computing.

A team of researchers led by University of Arizona assistant professor Vanessa Huxter has made the first detailed observation of how energy travels through diamonds that contain nitrogen-vacancy centers – defects in which two adjacent carbon atoms in the diamond’s crystal structure are replaced by a single nitrogen atom and an empty gap. (more…)

Climate change: fast out of the gate, slow to the finish

Washington, D.C.— A great deal of research has focused on the amount of global warming resulting from increased greenhouse gas concentrations. But there has been relatively little study of the pace of the change following these increases. A new study by Carnegie’s Ken Caldeira and Nathan Myhrvold of Intellectual Ventures concludes that about half of the warming occurs within the first 10 years after an instantaneous step increase in atmospheric CO2 concentration, but about one-quarter of the warming occurs more than a century after the step increase. Their work is published in Environmental Research Letters.

The study was the result of an unusual collaboration of a climate scientist, Ken Caldeira, who contributed to the recently published Intergovernmental Panel on Climate Change report, and Nathan Myhrvold, the founder and CEO of a technology corporation, Intellectual Ventures LLC. It is the third paper on which they have collaborated. (more…)

Greenpeace-Aktivisten protestieren bundesweit für Freiheit ihrer inhaftierten Kollegen in Russland

30 Umweltschützern drohen bis zu 15 Jahre Haft

Hamburg, 4. 10. 2013 – In 30 Städten protestieren am morgigen Samstag Greenpeace-Aktivisten für die Freilassung ihrer in Russland inhaftierten Kollegen. Die 28 Aktivisten und zwei Journalisten befinden sich in russischer Untersuchungshaft und sind von einem Gericht in Murmansk wegen bandenmäßiger Piraterie angeklagt. Bei einer Verurteilung drohen ihnen bis zu 15 Jahre Haft.

Die Umweltschützer hatten gegen Ölbohrungen des russischen Ölkonzerns Gazprom in der Arktis protestiert. Einen Tag danach war das Greenpeace-Aktionsschiff „Arctic Sunrise“ von der Küstenwache in internationalen Gewässern geentert und nach Murmansk geschleppt worden. (more…)

A symbiosis

Partnership study helps China examine safety for elderly

An unexpected partnership between the University of Delaware and the Beijing Academy of Science and Technology (BJAST) is proving to be a symbiotic relationship. (more…)

We are sorry to see this

While U.S President Barack Obama blames House Speaker John Boehner for the Federal Government Shutdown, it already started to hit at the cores of scientific developments in America. Today we noticed that the website of USGS (U.S Geological Survey) whose logo says ‘Science for a changing World’ is unavailable.

It reads ‘Due to the Federal government shutdown, usgs.gov and most associated web sites are unavailable.’ (more…)

UT Austin Anthropologists Confirm Link Between Cranial Anatomy and Two-Legged Walking

AUSTIN, Texas — Anthropology researchers from The University of Texas at Austin have confirmed a direct link between upright two-legged (bipedal) walking and the position of the foramen magnum, a hole in the base of the skull that transmits the spinal cord.

The study, published in a forthcoming issue of the Journal of Human Evolution, confirms a controversial finding made by anatomist Raymond Dart, who discovered the first known two-legged walking (bipedal) human ancestor, Australopithecus africanus. Since Dart’s discovery in 1925, physical anthropologists have continued to debate whether this feature of the cranial base can serve as a direct link to bipedal fossil species. (more…)

Legacy Soil Pollution: Higher lead levels may lie just below surface

A study of data from hundreds of soil samples taken around six old water tower sites in southern Rhode Island finds that even when lead levels on the surface are low, concentrations can sometimes be greater at depths down to a foot. The findings inform efforts to assess the effect of lead paint from old water towers on surrounding properties.

PROVIDENCE, R.I. [Brown University] — A newly published analysis of data from hundreds of soil samples from 31 properties around southern Rhode Island finds that the lead concentration in soil at the surface is not always a reliable indicator of the contamination a foot deeper. The study, led by Brown University Superfund Research Program researchers at the request of the Rhode Island Department of Health (RIDOH), informs ongoing efforts to assess the impact of the state’s legacy of lead-painted water towers. (more…)

Weltklimarat IPCC – Report zum Zustand des Weltklimas

Rekordtemperaturen und Überschwemmungen – Superlative in immer kürzeren Intervallen. Und der Mensch hat das zum größten Teil selbst zu verantworten.

Die Fakten sprechen eine deutliche Sprache: Die Erde erwärmt sich weiterhin in einem rasanten Tempo und die Meeresspiegel steigen stärker an als bisher prognostiziert. Das besagt der jüngste Report des sogenannten Zwischenstaatlichen Ausschusses für Klimaänderungen (IPCC – Intergovernmental Panel on Climate Change), der am Freitag, dem 27. September in Stockholm veröffentlicht wurde. (more…)