Guest Post – Page 511 – Shamskm: A site to exchange knowledge and solutions

Lateinamerika: zerstörte Hoffnungen – und neue!

By Guest PostDecember 29, 2013Politicsargentinien, brasilien, bundestaat ceara, cela, Chile, erzbischof von fortaleza, erzbischof von olinda, gustavo gutierrez, helder pessoa camara, johannes xxiii, kardinal aloysio lorscheider, lateinamerika, leonardo boff, medellin 1968, oscar romero, papst franziskus, papst leo xiii, papst paul vi, peru, puebla 1979, recife, udr, uniao democratica ruralista, usa, zerstoerte hoffnungen

Zwei Päpste haben sie gefördert, zwei bekämpft: die «Theologie der Befreiung». Jetzt dürfen Lateinamerikas Gläubige wieder hoffen.

«Der Kirche ist erst seit einiger Zeit bewusst geworden, dass sie einen anderen Auftrag hat als nur ‚geistlich’ zu predigen, spirituell oder wie immer man das nennen mag. Sie hat zum Beispiel das Privateigentum verteidigt, als ob es sich dabei um ein absolutes Recht handelte. Mit der Soziallehre ist nun bewusst geworden, dass es kein absolutes Recht auf Eigentum gibt.»

Genau 25 Jahre ist es her, seit der deutschstämmige Kardinal Aloysio Lorscheider mir diesen Satz – auf deutsch – im Rahmen eines Interviews aufs Tonband sagte. Lorscheider war damals, im Jahr 1988, Erzbischof von Fortaleza im nordostbrasilianischen Bundestaat Ceara. Und er war in Basilien und ganz Lateinamerika einer der bekanntesten und einflussreichsten Geistlichen überhaupt, war er doch schon von 1975 bis 1979 Vorsitzender der Lateinamerikanischen Bischofskonferenz «Consejo Episcopal Latinoamericano» CELAM gewesen. Lorscheider war also alles andere als nur irgend ein Aussenseiter. (more…)

Abuse of Social Network sites: E-Safety for children

By Guest PostDecember 29, 2013Technologychild safe websites, cyber bullying, web surfing

Most parents will by now wonder how they can protect their children and direct them to child-safe websites. Fortunately a non-profit site, Quib.ly offers a forum where concerned parents, teachers and care-givers can seek out the advice of experts in the field of cyber technology as well as child development psychology. If you visit this site you may well find that your particular concern is shared by others. Experts in their respective fields will be able to steer you in the direction of child-safe websites and you will have the opportunity to share knowledge gained by parents in your position.
(more…)

MU Researchers Develop Advanced Three-Dimensional “Force Microscope”

By Guest PostDecember 29, 2013Scienceadvanced, biology class, cell, develop, dynamic changes, force microscope, gatekeepers, gavin king, justin grayer, krishna sigdel, molecules, mu researchers, pharmaceutical companies, real-time, studying membrane proteins, three-dimensional, trajectory, university of missouri

Innovation could lead to faster drug therapies and increased understanding of proteins on the microscopic level

COLUMBIA, Mo. – Membrane proteins are the “gatekeepers” that allow information and molecules to pass into and out of a cell. Until recently, the microscopic study of these complex proteins has been restricted due to limitations of “force microscopes” that are available to researchers and the one-dimensional results these microscopes reveal. Now, researchers at the University of Missouri have developed a three-dimensional microscope that will yield unparalleled study of membrane proteins and how they interact on the cellular level. These microscopes could help pharmaceutical companies bring drugs to market faster. (more…)

Opposing phenomena possible key to high-efficiency electricity delivery

By Guest PostDecember 29, 2013Scienceali yazdani, andras gyenis, binghamton university, british columbia, coexistence, copper oxide, da silva neto, eduardo, electricity delivery, high efficiency, high temperature superconductors, hts, material, mystery in physics, pegor aynajian, phenomena, princeton university, rigid pattern, superconductivity, university, xray scattering technique

The coexistence of two opposing phenomena might be the secret to understanding the enduring mystery in physics of how materials heralded as the future of powering our homes and communities actually work, according to Princeton University-led research. Such insight could help spur the further development of high-efficiency electric-power delivery.

Published in the journal Science, the findings provide a substantial clue for unraveling the inner workings of high-temperature superconductors (HTS) based on compounds containing copper and oxygen, or copper oxides. Copper-oxide high-temperature superconductors are prized as a material for making power lines because of their ability to conduct electricity with no resistance. It’s been shown that the material can be used to deliver electrical power like ordinary transmission lines, but with no loss of energy. In addition, typical superconductors need extremely low temperatures of roughly -243 degrees Celsius (-405 degrees Fahrenheit) to exhibit this 100-percent efficiency. A copper oxide HTS, however, can reach this level of efficiency at a comparatively toasty -135 degrees Celsius (-211 degrees Fahrenheit), which is achievable using liquid nitrogen. (more…)

Angelina Jolie Effect: Breast Cancer Awareness vs. Knowledge

By Guest PostDecember 28, 2013Healthangelina jolie effect, breast cancer awareness, breast cancer risk, genetic testing, preventive double mastectomy

COLLEGE PARK, Md. – Angelina Jolie heightened awareness about breast cancer when she announced in a New York Times op-ed that she had undergone a preventive double mastectomy. But a new study led by researchers in the University of Maryland School of Public Health and the Johns Hopkins School of Public Health reveals that widespread awareness of Jolie’s story did not translate into increased understanding of breast cancer risk. (more…)

The Virus That Makes a Disposable Syringe

By Guest PostDecember 28, 2013Sciencealpha helical molecules, bacterial cell, bacteriophage, tail structure, virus

For decades, no one knew how a virus that preys on bacteria transfers its DNA into the host cells because it appeared to lack the structures other viruses use for that process. Now researchers have discovered how the virus does it – using a structure that might hold applications for nanotechnology. (more…)

Umfrage: Kraftstoffverbrauch ist wichtigstes Kriterium beim Autokauf

By Guest PostDecember 28, 2013Environmentautokauf, co2 emissionen, dena, deutschen energie agentur, deutschland, energieeffiziente verkehrssysteme, kfz steuer, kraftstoffverbrauch, kriterium, meinungsforschungsinstitut tns emnid, pkw label, stefan siegemund, umfrage

Pkw-Label bietet alle Energiedaten auf einen Blick. Bekanntheit soll über Handel gesteigert werden

Wer sich in Deutschland ein Auto kaufen möchte, der will vor allem wissen, wie hoch der Kraftstoffverbrauch und die Kraftstoffkosten sind. Nach einer Umfrage im Auftrag der Deutschen Energie-Agentur (dena) geben rund zwei Drittel der Kaufinteressierten an, dass diese beiden Kriterien ihnen bei der Fahrzeugwahl sehr wichtig sind. Andere Kriterien wie Antriebsart, Größe, Leistung oder Marke kommen dagegen nicht über vierzig Prozent. Die dena empfiehlt deshalb Autokäufern, sich nach dem Pkw-Label zu erkundigen. Die Kennzeichnung ist seit Dezember 2011 Pflicht für Neuwagen und informiert über Kraftstoffverbrauch, Kraftstoffkosten und CO₂-Emissionen eines Fahrzeugs. (more…)

Scientists solve a decades-old mystery in the Earth’s upper atmosphere

By Guest PostDecember 28, 2013Sciencebinbin ni, chorus, craig kletzing, data driven, decades old mystery, earth, electron acceleration, emfisis, extremely energetic particles, geoff reeves, global wave model, inward, jacob bortnik, james van allen, local stochastic acceleration, low frequency, planetary magnetospheres, qianli ma, radial diffusive transport, radiation belts, radio wave, scientists, solve, space scientist, ultra relativistic electrons, university of iowa, upper atmosphere, van allen

New research published in the journal Nature resolves decades of scientific controversy over the origin of the extremely energetic particles known as ultra-relativistic electrons in the Earth’s near-space environment and is likely to influence our understanding of planetary magnetospheres throughout the universe.

Discovering the processes that control the formation and ultimate loss of these electrons in the Van Allen radiation belts — the rings of highly charged particles that encircle the Earth at a range of about 1,000 to 50,000 kilometers above the planet’s surface — is a primary science objective of the recently launched NASA Van Allen Probes mission. Understanding these mechanisms has important practical applications, because the enormous amounts of radiation trapped within the belts can pose a significant hazard to satellites and spacecraft, as well astronauts performing activities outside a craft. (more…)

Author Archives: Guest Post