Profile

Cover photo
Oliver Thewalt
Works at Neogrid e.V.
Lives in Saarbrücken
852 followers|425,530 views
AboutPostsPhotos+1's

Stream

Oliver Thewalt

Shared publicly  - 
 
 
Revolutionary New Probe Zooms in on Cancer Cells

Read the full article: http://neurosciencenews.com/brain-cancer-probe-neurology-1751/

Improves tumor surgeries and extends survival times for brain cancer patients.

The research is in Science Translational Medicine. (full access paywall)

Research: "Intraoperative brain cancer detection with Raman spectroscopy in humans" by Michael Jermyn, Kelvin Mok, Jeanne Mercier, Joannie Desroches, Julien Pichette, Karl Saint-Arnaud, Liane Bernstein, Marie-Christine Guiot, Kevin Petrecca, and Frederic Leblond in Science Translational Medicine doi:10.1126/scitranslmed.aaa2384 (http://dx.doi.org/10.1126/scitranslmed.aaa2384)

Image: The probe allows surgeons to see very small densities of cancer cells in the brain during surgery. Image credit: Science Translational Medicine; Petrecca K, Leblond F et al. Usage Restrictions: Only use image in association with this study.

#neurology   #cancer   #technology  
5 comments on original post
2
2
Stephen Langer's profile photoCharles Filipponi's profile photo
Add a comment...
 
 
Why sodium explodes in water. Published in Nature Chemistry this week! :-)
301 comments on original post
2
1
Michael Stuhr's profile photo
Add a comment...

Oliver Thewalt

Shared publicly  - 
Wow! It’s one thing to know that the immune system has the power to destroy cancerous cells. But it’s quite another thing to see a cytotoxic T cell actually take out a cancer cell right before your...
1
1
Charles Filipponi's profile photo
Add a comment...

Oliver Thewalt

Shared publicly  - 
 
 
The United Kingdom’s top surveillance agency has acted unlawfully by keeping details about the scope of its Internet spying operations secret, a British court ruled in an unprecedented judgment issued on Friday.
View original post
1
1
Synchlavier Sample's profile photo
Add a comment...

Oliver Thewalt

Shared publicly  - 
 
 
New research yields insight into generating antibodies that target different strains of HIV, suggesting that sequentially administering several different forms of a potential HIV vaccine could stimulate a stronger immune response than delivering a cocktail of these variants all at once. Throu
View original post
1
Add a comment...

Oliver Thewalt

Shared publicly  - 
1
1
Charles Filipponi's profile photo
Add a comment...

Oliver Thewalt

Shared publicly  - 
 
Sehr lesenswerter Artikel mit vielen wichtigen Fakten:  

http://sebastiantempl.blogspot.de/2014/04/gedanken-zur-tschernobyl-katastrophe-12.html

Was noch zu erwähnen sei, ist dass Frankeich am meisten gelogen hatte. Man stelle sich das in 1986 vor, ohne die Warnung von Schweden hätte das selbst Gorbatschow nicht ganz so ernst genommen, zunächst, man hätte noch mehr wichtige Zeit verloren.

In diesem sehr schön recherchierten Artikel von Sebastian Templ (+Scientific Finger Food auf G+) werden die fatalen Auswirkungen einer scheinbar langen Kette von verantwortungsloser Schlamperei und kaum zu glaubender Fehler bei Verfahren solcher Natur (hier: Nachholen eines Test-Experiments, welches schon längst vor Inbetriebnahme hätte geschehen sollen) i.V.m.  gravierenden Design-Fehlern offengelegt!

Doch was war der eigentliche Grund, welcher diese Ereigniskette, welche geradezu danach schrie ausgelöst zu werden, angestossen hatte?

Da die Designer dieses Reaktortyps auf dessen Mängel hingewiesen hatten, kann man nur schlussfolgern, dass wirtschaftliche Erwägungen i.V.m. dem kalten Krieg, sprich Systemwettlauf oder Konkurrenz von Nationalstaaten die eigentliche Ursache waren!

Zumal radioaktive Wolken welche (ich schreibe aus der Erinnerung gerade jetzt, kann man alles nach-recherchieren)  bis nach Italien herüberzogen, was von Frankreich immer dementiert wurde, oder sogar noch weiter. Ich glaube nach der Abschlusskonferenz hatte sogar einer der Teilnehmer Selbstmord verübt.

Kein Wunder, denn man schätzt dass bis 2050 ca 50 Millionen Menschen, darunter ca. 600.000 Liquidatoren betroffen sein werden.

Die Liquidatoren hatte man völlig verschaukelt: die Messwerte lagen signifikant höher als behauptet, sodass eine tödliche Dosis von vorneherein zu erwarten war, für diejenigen welche auf dem Reaktor-Dach gearbeitet hatten in jedem Fall, aber auch für viele andere ..  

Ähnlich war das zur Zeit der Zsar Bombe, als sogar Sacharov von den Auswirkungen des Fallouts einer 50 MT Bombe (Wasserstoffbombe,  Prinzip Fission-Fusion-Fission  http://ueberhauptgarnix.blogspot.de/2013/10/wasserstoffbombe-an602-zar-bombe.html) überrascht war, hatte er doch ursprünglich 100 MT geplant! Der Fallout ist übrigens hauptsächlich eine Folge des aufgewirbelten Materials, welches kontaminiert wird, weniger von der Explosion selber.

Bei Operation Castle Bravo hatte man noch keine Ahnung von Cross Section Effekten, sodass bei einem Test (nuclear weapon http://blog.nuclearsecrecy.com/2013/06/21/castle-bravo-revisited/) durch die USA im Südpazifik nicht 5 MT getestet wurden sondern fast 15 MT! (Lithium 7 wird bei hohen Energien zu Lithium 6 http://en.wikipedia.org/wiki/Isotopes_of_lithium http://en.wikipedia.org/wiki/Neutron_cross_section).


Oft werden Technologien angewandt, welche in ihren Gesamtzusammenhängen noch schlecht verstanden sind.

Die 2200 Tests von Nuklearwaffen haben u.a. zu schweren Einwirkungen in die Plattentektonik der Erde geführt.

 Im Zusammenhang mit Solaren Aktivitäten (CME, LPE etc) und anderer kosmischer Auslöser (z.B. gravitationale Konstellationen) werden auch Erdbeben ausgelöst.

Koseismische Effekte wie das LAI-Coupling haben einen Einfluss auf den Total Electron Content (TEC) der Ionosphäre bzw. das TEC-Gleichgewicht zwischen Erde (Litosphäre) Atmosphäre und Ionosphäre.

Dazu hier einiges zur Datenlage, warum Nuclear Fission wegen LAI-Coupling nicht sicher ist. 

In den Kommentaren einige Hintergründe und Erklärendes.

https://plus.google.com/116175168820229445752/posts/3ky54ZCt1zm
 ·  Translate
Sei es aus eigener Erfahrung oder aus Erzählungen - die meisten von uns wissen wohl, dass sich vor nicht allzu langer Zeit ein schwerer Unfall im ukrainischen Kernkraftwerk Tschernobyl zutrug. Genauer gesagt ereignete sich di...
1
Add a comment...
Have them in circles
852 people
Usman Butt's profile photo
K.J Jacob's profile photo
Marcello Colozzo's profile photo
Manash Kundu's profile photo
Muhammad Saleem's profile photo
Harry Van der Berg's profile photo
Charles Filipponi's profile photo
Andrey Zhmoginov's profile photo
Peter Waaben's profile photo

Oliver Thewalt

Shared publicly  - 
 
(Phys.org)—A collaborative of researchers from several U.S. universities has published a new paper that explains the major contradictions presented by the prevailing cold dark matter (CDM) cosmological model, and proposes approaches for reconciling cosmological observations with the CDM model's predictions. ...
View original post
1
Add a comment...

Oliver Thewalt

Shared publicly  - 
 
 
Curly-Q Filament Blast

A solar filament in the shape of a twisted arch erupted over a three-hour period (Feb. 4, 2015), with most of it falling back into the Sun.

Filaments are elongated clouds of particles suspended above the Sun’s surface by magnetic forces, and are notoriously unstable. The activity in the lower corona was visible in extreme ultraviolet light. 

Credit: Solar Dynamics Observatory/NASA 

More from the Solar Dynamics Observatory at sdo.gsfc.nasa.gov/
4 comments on original post
1
Add a comment...

Oliver Thewalt

Shared publicly  - 
 
 
Astronomy Photo of the Day: 2/6/15 — Pickering's Triangle

Pickering's Triangle is a small section of the famous nebula called Cygnus Loop (where the Veil Nebula also resides). Learn more here: http://bit.ly/1KnqCkA

Image Credit: Don Goldman (AstroDon)
View original post
5
Add a comment...

Oliver Thewalt

Shared publicly  - 
 
 
Walter Pitts, the brilliant runaway from Detroit and his life with Warren McCullough, John von Neumann, Norbert Weiner, and Jerry Letvin. All brilliant. But the impact they had on the world was far less than it might have been.

The article traces Pitts' life from childhood to his death by alcohol. The only villain is Weiner's wife who told Weiner that Pitt seduced his daughter.  Foolishly, Weiner apparently believed her and never spoke to Pitts again. That was the apparently the turning point in Pitts' life. He was rejected by his adopted father and turned to alcohol. A tragic story. 

It's a long piece. But if you've heard of any of these people, you should read it. I once attended a series of lectures by Jerry Letvin. He was quite obese and was said to spend much of his life in a bathtub. But he was an transing lecturer. What I remeber most vividly was his stories about how intelligent octopuses are. They also had a sense of humor. He was working with some in his lab. Sometimes they would hide from him in their tank and then jump out from their hiding place and squirt him.

via +Adam J Calhoun 
Walter Pitts was used to being bullied. He’d been born into a tough family in Prohibition-era Detroit, where his father, a boiler-maker,…
View original post
1
2
Science Network Hixgrid's profile photoCharles Filipponi's profile photo
Add a comment...

Oliver Thewalt

Shared publicly  - 
A team of Caltech chemists has discovered a method for producing a group of silicon-containing organic chemicals without relying on expensive precious metal catalysts. Instead, the new technique uses as a catalyst a cheap, abundant chemical that is commonly found in chemistry labs around the world—potassium ...
1
Add a comment...
People
Have them in circles
852 people
Usman Butt's profile photo
K.J Jacob's profile photo
Marcello Colozzo's profile photo
Manash Kundu's profile photo
Muhammad Saleem's profile photo
Harry Van der Berg's profile photo
Charles Filipponi's profile photo
Andrey Zhmoginov's profile photo
Peter Waaben's profile photo
Work
Occupation
Founder of Neogrid e.V. and Hixgrid - The Science Network
Employment
  • Neogrid e.V.
    Founder, 2003 - present
Links
Contributor to
Story
Tagline
In science there is no truth but beauty!
Introduction
Neogrid e.V. IT and Computer Science (www.neogrid.de)

HIXGRID The Science Network
'Advanced Science' - Research in Theoretical Physics, Photonic Universe
(hixgrid.de)

Theoretical Physics
SRT, GRT, QM, Gravity (Gravimetrics), Higgs-Field, Dark Matter, Anti-Matter, High-Energy Physics, Energy, Nuclear Physics, Cosmology, Astrophysics

Microbiology, Photonics, Quantum Computing, Space Science
Places
Map of the places this user has livedMap of the places this user has livedMap of the places this user has lived
Currently
Saarbrücken
Oliver Thewalt's +1's are the things they like, agree with, or want to recommend.
Physicists investigate onset of effective mass
phys.org

(Phys.org) —Although mass may seem to be a fairly straightforward concept, from a physics perspective it can be much more complex than weigh

Effective Field Theory
ocw.mit.edu

Course FeaturesVideo lecturesLecture notesProjects (no examples)Assignments (no solutions)Course DescriptionEffective field theory is a fund

Researchers image the Milky Way's magnetic fingerprint
phys.org

(Phys.org) —Our Galaxy's magnetic field is revealed in a new image from ESA's Planck satellite. This image was compiled from the first all-s

'Photon glue' enables a new quantum mechanical state
phys.org

(Phys.org) —Like a spring connecting two swings, light can act as photon glue that binds together the quantum mechanical properties of two v

'Project Kronos' Taking Off As Full-Length Feature (EXCLUSIVE)
variety.com

Armory/Benderspinkweiner has come on board to develop a feature-film adaption of Hasraf Dullal's short sci-fi film "Project Kronos."

Pulsar in Stellar Triple System - NRAO: Revealing the Hidden Universe
public.nrao.edu

Sunday, 5 January 2014, 1:00 p.m., EST (NOTE: PRESS CONFERENCE at 10:15 a.m, EST, Monday, 6 January 2014. For online access to press co...

DNA Evidence Sentences Nuclear Waste To Billion-Year Prison Term
www.forbes.com

250 million-year-old DNA has been recovered intact from a nuclear waste disposal site in New Mexico and provides ample evidence that the was

History and progress on accurate measurements of the Planck constant - A...
iopscience.iop.org

The measurement of the Planck constant, h, is entering a new phase. The CODATA 2010 recommended value is 6.626 069 57 × 10−34 J s, but it ha

Astronomy & Space | SpaceAstronomer
www.spaceastronomer.com

SpaceAstronomer, Information, data, news, software, applications and links related to Astronomy, Space, Universe, Galaxies, Stars, Planets a

New Studies Give Boost to Binary Star Formation Theory - NRAO: Revealing...
public.nrao.edu

For Release: Dec. 31, 2013; 10:30 a.m. ESTContact: Dave Finley, Public Information Officer (575) 835-7302; dfinley@nrao.edu New Studies Give

A quantum revolution against Feynman diagrams
arstechnica.com

We all love Richard Feynman, but his diagrams may have to go.

Small size enhances charge transfer in quantum dots
phys.org

(Phys.org) —Quantum dots—tiny semiconductor crystals with diameters measured in billionths of a meter—have enormous potential for applicatio

Black Holes Have ‘Hair,’ Say Scientists: Wait, What? Explaining The Hair...
www.ibtimes.com

According to a new study, black holes might not be identical after all. They might have "hair" or other distinctive features.

Scientists Discovered Black Hole with Mysterious Brightness
www.hngn.com

Scientists discovered a black hole in a galactic neighbor with an incredible brightness. They were amazed to see that black holes have a cap

Proton radius puzzle may be solved by quantum gravity
phys.org

(Phys.org) —Officially, the radius of a proton is 0.88 ± 0.01 femtometers (fm, or 10-15 m). Researchers attained that value using two method

Scientists think mysterious virus could be a signal of a weak immune system
medicalxpress.com

More than 260,000 Americans are alive today thanks to transplant operations that have replaced their failing kidneys, hearts, lungs or liver

New Algorithm Allows Astronomers to Track the Process of Star Formation ...
scitechdaily.com

Astronomers have developed a new computational algorithm that allows them to follow the star formation process down to the very small scales

How losing information can benefit quantum computing
phys.org

Suggesting that quantum computers might benefit from losing some data, physicists at the National Institute of Standards and Technology (NIS

X-rays reveal another feature of high-temperature superconductivity
phys.org

Classical and high-temperature superconductors differ hugely in the value of the critical temperatures at which they lose all electrical res

Supernova blast emitted record burst of gamma rays
www.latimes.com

A massive nearby star explodes a record burst of gamma rays, more energy than produced in sun's lifetime.