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In conversation with: Hee Oh, professor of mathematics

By Guest PostDecember 13, 2013Scienceabsolute abstraction, beautiful structure, brown, cal tech, christian faith, college in korea, complex problem, dramatic moment, false sense, female students, geometry, god, hee oh, homogeneous space, in conversation with, joy of walking, lots of symmetries, mathematics problem, number theory, princeton, professor of mathematics, rigidity phenomenon, superiority

Hee Oh joined Yale’s math department this year from Brown. Here she talks about absolute abstraction, the joy of walking — and missing math during her years as a social activist.

You received your doctorate in mathematics from Yale in 1997, then served on the faculties of Princeton, Cal Tech, and Brown, among others. What drew you back to Yale?

The math department at Yale has been well known for its strength in Lie groups, geometry, and dynamics for a long time. It was an honor and in itself a big draw for me to be asked to participate in continuing this tradition. In the end, however, I felt in my Christian faith that God was leading me this way, and I made the final decision accordingly. (more…)

Astronomers discover first noble gas molecules in space

By Guest PostDecember 13, 2013Sciencecrab nebula, infrared spectra, molecule, noble gas, supernova remnant

Noble gas molecules have been detected in space for the first time in the Crab Nebula, a supernova remnant, by astronomers at UCL. (more…)

Ins Feld, Forscher!

By Guest PostDecember 13, 2013Naturebiosphere expeditions, expedition, gruppa bars, kirgistan, matthias hammer, nabu kirgistan, naturschutzorganisation, schneeleopard, schneeleoparden schutz, tian shan gebirge

Helfer für Schneeleoparden-Schutzprojekt gesucht

Verschneite Berggipfel, wilde und seltene Tiere, Eintauchen in eine ganz andere Kultur – so manch einen ergreift das Fernweh, wenn er an das nördliche Tian-Shan-Gebirge in Kirgistan denkt. Doch die Region benötigt vor allem Hilfe, um eine der am stärksten gefährdeten Großkatzen der Welt zu schützen: den Schneeleoparden. Daher hat der NABU Kirgistan eine Kooperation mit der Naturschutzorganisation Biosphere Expeditions gestartet.

„Biosphere Expeditions ermöglicht es Laien, an echten Naturschutz-Mitforscherreisen teilzunehmen.“, erklärt Dr. Matthias Hammer, Gründer und Chef von Biosphere Expeditions. „Das lokale Wissen des NABU Kirgistan und unser Know-how im Bereich des sanften Öko- und Wissenschaftstourismus bilden dabei die Grundlage für die Expedition.“ (more…)

Two-legged robot walks outside at U-Michigan

By Guest PostDecember 13, 2013Technologyatrias series, bipedal robot, machine named marlo, robot mabel, robot rabbit, two legged robot

ANN ARBOR — With prosthetic feet and hips that can swing sideways for stability, the University of Michigan’s newest two-legged robot has taken its first steps outside. (more…)

Hubble Sees Evidence of Water Vapor at Jupiter Moon

By Guest PostDecember 12, 2013Scienceauroral glow, europa, europa plumes, hubble measurements, jupiter moon, magnetic field lines, polar region, water vapor

NASA’s Hubble Space Telescope has observed water vapor above the frigid south polar region of Jupiter’s moon Europa, providing the first strong evidence of water plumes erupting off the moon’s surface. (more…)

Ancient crater may be clue to Moon’s mantle

By Guest PostDecember 12, 2013Scienceaitken basin, ancient crater, brown university, carle pieters, chandrayaan, dan moriarty, giant spa impact, India, laser program, lower crust, lunar orbiter, lunar science institute, mantle, mantle materials, mapper data, mineralogical surprises, mineralogy, moon, moon mineralogy, NASA, nlsi, peter isaacson, solar system, south pole, spa basin, spa subsurface, subsurface, university of hawaii, upper

A massive impact on the Moon about 4 billion years ago left a 2,500-mile crater, among the largest known craters in the solar system. Smaller subsequent impacts left craters within that crater. Comparing the spectra of light reflected from the peaks of those craters may yield clues to the composition of the Moon’s lower crust and mantle — and would have implications for models of how the Moon formed.

PROVIDENCE, R.I. [Brown University] — Researchers from Brown University and the University of Hawaii have found some mineralogical surprises in the Moon’s largest impact crater. (more…)

Machen schlechte Luft: Outdoor-Jacken

By Guest PostDecember 12, 2013Environment, Healthanja franzenburg, arktis, blut, China, detox kampagne, ftoh, giftstoffe, Greenpeace, grenzwert, jack wolfskin, jacken von schoeffel, luft, mammut, manfred santen, mikrogramm pro quadratmeter, nonylphenole, outdoor jacken, per, pfc, pfc chemikalien, pfoa, pfos, phthalate, polyester, polyfluorierte chemikalien, polyurethan, schadstoffe, suedafrika, textilproduktion, trinkwasser, umwelt

Ob China, Arktis oder Südafrika – und vermutlich auch bei Ihnen zu Hause: PFC-Chemikalien lassen sich weltweit nachweisen. Sie gelangen in Hausstaub, Trinkwasser und Blut, weil sie in großen Mengen in der Textilproduktion eingesetzt werden. Greenpeace wollte wissen, wie viel davon in unserer Outdoor-Kleidung steckt und hat Jacken und Handschuhe ins Labor geschickt.

In allen 17 Produkten wiesen zwei unabhängige Labore per- und polyfluorierte Chemikalien (PFC) und andere Schadstoffe nach. An neun der 17 Proben hat Greenpeace erstmals testen lassen, ob die Giftstoffe aus den Textilien auch an die Luft abgegeben werden. Auch das ist der Fall. (more…)

UCLA researchers’ new technique improves accuracy, ease of cancer diagnosis

By Guest PostDecember 12, 2013Healthcancer diagnosis, deformability cytometer, diagnostic accuracy, new technique, pleural effusion, pleural fluid samples

‘Deformability cytometry’ can closely analyze more than 1,000 cells per second

A team of researchers from UCLA and Harvard University have demonstrated a technique that, by measuring the physical properties of individual cells in body fluids, can diagnose cancer with a high degree of accuracy.
(more…)

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