A novel concept for photovoltaics that exploits the ability of materials to exist in different crystalline phases

The group of Prof. Yana Vaynzof at the Integrated Center for Physics and Photonic Materials (IAPP) and the Center for Advancing Electronics Dresden (cfaed) at Technische Universität Dresden has demonstrated a novel concept for solar cells that exploits the ability of materials to exist in different crystalline phases. The related study has now been published in the journal Nature Energy.

The purpose of a photovoltaic cell is to convert sunlight into electricity. By absorbing the sunlight, pairs of charge carriers are generated and then need to be guided to the opposite sides of the photovoltaic diode to produce electrical current. To facilitate this process, most solar cells include a heterojunction that provides a favorable energetic landscape to drive the charges to be separated.

For example, silicon solar cells form a heterojunction by electrically doping each side of the device, forming a p-n junction. Organic solar cells, on the other hand, rely on blending different types of materials (donor and acceptor) to form a bulk heterojunction. However, these concepts are often not applicable to emerging classes of novel photovoltaic materials.

Read more.

Wir freuen uns über die beiden shakehands-Spitzenplatzierungen beim Doppelturnier des Dresdner Hochschulsportzentrums, Ron & Rapha. Großen Respekt an Darius und vielen Dank an Denis Hünich für die Organisation 🤝🏾🏓

Rabiye Kurnaz vs. George W. Bush

2023 ° phh

DAAD-STIBET Scholarship Program For International Students At TU Dresden In Germany - Apply Now

DAAD-STIBET Scholarship Program For International Students At TU Dresden In Germany – Apply Now

DAAD-STIBET Scholarship program for International Students at TU Dresden in Germany: Technische Universitat Dresden invites applications from eligible and outstanding International students for DAAD-STIBET scholarship and mentoring program for 2022/2023 academic session. At TU Dresden, they have innovative material systems and their production technologies in a cross- material and cross- product…

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The Hamas massacres on October 7, 2023 mark a turning point in the history of anti-Semitism and in the development of the Middle East conflict. More than 1,200 Israelis were massacred and more than 200 were taken hostage. Some felt the anti-Jewish atrocities reminded them of the actions of the Einsatzgruppen in the Third Reich. In fact, Hamas' anti-Semitism follows the tradition of the National Socialist will to destroy. Nazi Germany had already discovered the anti-Semitic potential of the Koran in the 1930s and exploited it for its own propaganda in the Arab world. Zeesen, a shortwave transmitter stationed south of Berlin, deliberately spread Islamic anti-Semitism among Muslims. The radio broadcasts were broadcast daily between April 1939 and April 1945 in Arabic, but also in Persian and Turkish. Just as the Nazis radicalized Christian anti-Judaism in Europe, they took Muslim anti-Judaism as a basis in the Middle East in order to link it to the European anti-Semitic conspiracy theory. In his book “Nazis and the Middle East. “How Islamic Anti-Semitism Came About” our speaker sheds light on this previously ignored chapter of Germany’s past and, based on new archive finds, shows how the image of Jews in Islam changed between 1937 and 1948 under the influence of sophisticated Arabic-language radio propaganda and other Nazi activities. The Middle East's encounter with Nazi ideology may have been brief, but it continues to have an impact today. Because while Nazi anti-Semitism was discredited everywhere else in the world, it was able to survive as a worldview in the Arab world. Only when we understand how strongly modern Middle East history is shaped by the after-effects of National Socialism will we be able to correctly interpret the hatred of Jews in this region and its echo among Muslims in Europe and develop adequate countermeasures.

Instagram page of the event

During Nuremberg Trial testimony, the prosecutor pressed Einsatzgruppen commander Otto Ohlendorf: “You were going out to shoot down defenseless people. Now, didn’t the question of the morality of that enter your mind?” Ohlendorf referred to the Allied bombings of Germany as a context:

I am not in a position to isolate this occurrence from the occurrences of 1943, 1944, and 1945 where with my own hands I took children and women out of the burning asphalt myself, and with my own hands I took big blocks of stone from the stomachs of pregnant women; and with my own eyes I saw 60,000 people die within 24 hours.

A judge immediately pointed out that his own killing spree preceded those bombings. But this would become known as the “Dresden defense,” to which Ohlendorf resorted still another time, in this exchange:

Ohlendorf: I have seen very many children killed in this war through air attacks, for the security of other nations, and orders were carried out to bomb, no matter whether many children were killed or not. Q: Now, I think we are getting somewhere, Mr. Ohlendorf. You saw German children killed by Allied bombers and that is what you are referring to? Ohlendorf: Yes, I have seen it. Q: Do you attempt to draw a moral comparison between the bomber who drops bombs hoping that it will not kill children and yourself who shot children deliberately? Is that a fair moral comparison ? Ohlendorf: I cannot imagine that those planes which systematically covered a city that was a fortified city, square meter for square meter, with incendiaries and explosive bombs and again with phosphorus bombs, and this done from block to block, and then as I have seen it in Dresden likewise the squares where the civilian population had fled to—that these men could possibly hope not to kill any civilian population, and no children.

Ohlendorf thought this defense so powerful that he invoked it yet another time:

The fact that individual men killed civilians face to face is looked upon as terrible and is pictured as specially gruesome because the order was clearly given to kill these people; but I cannot morally evaluate a deed any better, a deed which makes it possible, by pushing a button, to kill a much larger number of civilians, men, women, and children.

(The chief prosecutor, an American, called this particular iteration “exactly what a fanatical pseudo-intellectual SS-man might well believe.”)

At Nuremberg, this sort of tu quoque defense (“I shouldn’t be punished because they did it too”) wasn’t admissible. Still, in the verdict of the Einsatzgruppen Trial, the judges chose to refute it. “It was submitted,” the judges wrote, “that the defendants must be exonerated from the charge of killing civilian populations since every Allied nation brought about the death of noncombatants through the instrumentality of bombing.” The judges would have none of it:

A city is bombed for tactical purposes… it inevitably happens that nonmilitary persons are killed. This is an incident, a grave incident to be sure, but an unavoidable corollary of battle action. The civilians are not individualized. The bomb falls, it is aimed at the railroad yards, houses along the tracks are hit and many of their occupants killed. But that is entirely different, both in fact and in law, from an armed force marching up to these same railroad tracks, entering those houses abutting thereon, dragging out the men, women and children and shooting them.

The tribunal sentenced Ohlendorf to death. He was hanged in June 1951.

“In the last analysis”

Nuremberg enforced a fundamental distinction. All civilian lives are equal, but not so all ways of taking them. The deliberate and purposeful killing of civilians is a crime; not so the taking of civilian lives that is undesired, unintended, but unavoidable. The errors made by a bomber squadron cannot be deducted from the murders committed by a death squad. It’s a difference compounded many times over when those civilian men, women, and children are subjected to torture, rape, and mutilation before their murder. To borrow Khalidi’s phrase, “in the last analysis,” this distinction is what separates modern civilization from its predecessors.

More disturbing is the thought that it separates the contemporary West from its peers. Otto Ohlendorf and the regime he served did all they could to conceal their deeds from Western eyes. Nazi Germany still operated in a West founded on Enlightenment values. So massive a violation of a shared patrimony needed to be hidden from view.

In contrast, Hamas initially sought to publicize its deeds, assuming they would win applause, admiration, or at least tacit acceptance in the Arab and Muslim worlds. Here they succeeded beyond their expectations. The many millions who don’t share the West’s patrimony, and who know next to nothing about the Holocaust or Nuremberg, do see things as Khalidi says they see them. (So, too, does a sliver of alienated opinion in the West, where such views are cultivated and celebrated.)

Finally, and still more disturbing, is the fact that Ohlendorf’s defense has been revived to frame the massacre of Jews. 

Icosahedron net - "coiling up"

This icosahedron net is really cool, as it is just like a "string of triangles" you can just roll up to form the icosahedron.

Result:

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The hexagon grid is really helpful for drawing equilateral triangles.

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It reminds me of this:

Diffraction - Source: German PDF [found at TU-dresden website]

...

In a recent publication in the scientific journal “Advanced Materials”, a team of physicists and chemists from TU Dresden presents an organic thin-film sensor that describes a completely new way of identifying the wavelength of light and achieves a spectral resolution below one nanometer. As integrated components, the thin-film sensors could eliminate the need for external spectrometers in the future. A patent application has already been filed for the novel technology.

Thank you @einendloseralbtraum for the tag!!!

URL mixtape game

rules: pick a song for each letter of your URL then tag the same number of blogs

R Rio by Mika

E Entre poetas y presos - La Raíz

M Mama - My Chemical Romance

U Un fatto tuo personale - Fulminacci

S Savages - Marina

L Love Is For Losers - Twisted Sister

U Un’emozione da poco (specifically the cover by Luca Marinelli sorry Anna Oxa it’s nothing personal I promise)

P Per tu - Ebri Knight

I In Hell I’ll Be In Good Company - The Dead South

N Never The Heroes - Judas Priest

I In The Middle - Dodie

S Sarcasm - Get Scared

T Take Your Time - Buddy Holly

H Hayloft - Mother Mother

E Esperando el impacto - Bersuit Vergarabat

V Viva La Vida - Coldplay

O One Bad Habit - Twisted Sister

I Ignorance - Paramore

C Contessa - Modena City Ramblers

E Eddie Baby - Felix Hagan & The Family

O Out Of Style - The Wrecks

F (The) Foundations Of Decay - My Chemical Romance (I promise I didn’t cheat, Sp0tify’s putting the song under F)

G Girl Anachronism - The Dresden Dolls

O Oro nero - Talco

D Dat ene moment - Django Wagner

Why the heck did I choose such a long URL.

Tagging @tales-of-witchery @gaysessuale @casadepalermo @enjolraspermettendo @goldenliartrash and everyone who wants to do this but hasn’t been tagged!

Gar nicht, MDR. Wie ihr jeden Tag in zahlreichen Artikeln beweist.

Ich habe es mir nicht angesehen, verlinke es aber gerne für die, die es tun wollen. Für ein vollständiges Bild bitte auch die (erwartbaren) Lesermeinungen zur Kenntnis nehmen.

Mundos 101

En el contexto de juegos de rol como Dungeons & Dragons (D&D) y la creación literaria, hay una amplia variedad de tipos de mundos que puedes explorar. Estos mundos pueden servir como telones de fondo emocionantes para tus historias y campañas. Aquí te describo algunos de los tipos de mundos más populares y lo que los hace únicos:

1. Mundos de Alta Fantasía

Estos son mundos donde la magia es prevalente y juega un papel importante en la sociedad y la cultura. Reinos épicos, dioses activos, criaturas míticas y héroes poderosos son comunes. Ejemplos icónicos incluyen el mundo de El Señor de los Anillos de J.R.R. Tolkien y Forgotten Realms en D&D.

2. Mundos de Fantasía Oscura

En estos mundos, la atmósfera es más sombría y las historias a menudo exploran temas de desesperanza y decadencia. La magia puede ser peligrosa y corrupta, y los héroes son a menudo defectuosos o anti-héroes. Ejemplos incluyen Westeros de Game of Thrones y el mundo de Warhammer.

3. Mundos de Ciencia Ficción

Estos mundos se centran en tecnologías avanzadas y exploración espacial, y pueden incluir elementos como viajes interestelares, inteligencia artificial y encuentros con alienígenas. Pueden ser optimistas y centrados en la exploración, como Star Trek, o más grises y distópicos, como el universo de Blade Runner.

4. Mundos Post-Apocalípticos

Tras algún desastre catastrófico, estos mundos muestran a la humanidad luchando por sobrevivir. Los entornos pueden ser devastados por guerras, desastres naturales o pandemias. Ejemplos incluyen Mad Max y el mundo de Fallout.

5. Mundos de Horror

En estos mundos, el miedo y el terror son elementos centrales. Pueden combinar elementos sobrenaturales como fantasmas y monstruos, o centrarse en el horror psicológico y la supervivencia. Ejemplos son Silent Hill y Resident Evil.

6. Mundos Steampunk

Estos mundos mezclan tecnología y estéticas inspiradas en la era victoriana, con una fuerte presencia de maquinaria a vapor y engranajes. A menudo hay un fuerte énfasis en la aventura y la exploración. Ejemplos incluyen Mortal Engines y el juego de rol Eberron en D&D.

7. Mundos de Espada y Brujería

Se centran en historias de acción y aventura en entornos fantasiosos, con un enfoque en héroes combatientes y magia misteriosa y a menudo peligrosa. Son típicamente menos políticos y más centrados en la aventura personal y las proezas heroicas. Ejemplos clásicos incluyen Conan el Bárbaro.

8. Mundos Urbanos de Fantasía

Estos mundos son a menudo versiones de la Tierra moderna donde elementos mágicos y criaturas sobrenaturales están ocultos o integrados en la sociedad. Ejemplos incluyen el mundo de Harry Potter y The Dresden Files.

9. Mundos Dystópicos

Son sociedades futuristas donde las cosas han tomado un giro hacia la opresión y el control extremo. Suelen explorar las consecuencias de las políticas autoritarias o el control tecnológico excesivo. Ejemplos notables son 1984 de George Orwell y The Hunger Games.

10. Mundos de Realismo Mágico

Estos mundos son generalmente reconocibles como la Tierra contemporánea, pero con elementos mágicos sutiles que son aceptados como parte normal de la vida. Ejemplos incluyen las obras de Gabriel García Márquez y Big Fish.

Cada tipo de mundo ofrece diferentes oportunidades y desafíos para contar historias y diseñar juegos. Elegir el tipo de mundo adecuado para tu juego o historia puede ayudarte a establecer el tono, las reglas y las expectativas que guiarán la experiencia de tus jugadores o lectores.

Entwarnung: «Schulen kein Hotspot»COMPACT+ 

Compact:»Studie der TU Dresden. Ende April hatte Viruspapst Christian Drosten noch apodiktisch verkündet, dass Kinder «genauso ansteckend sein könnten wie Erwachsene». In allen Bundesländern begannen drastische Einschränkungen des Schulbetriebs. Der pessimistischen Theorie widersprach die erste deutsche Schulstudie. Dieser Artikel erschien im COMPACT-Aktuell 3: „Corona Lügen“. _ Studie der Medizinischen Fakultät der TU Dresden « Die [...] Der Beitrag Entwarnung: «Schulen kein Hotspot»COMPACT+  erschien zuerst auf COMPACT. http://dlvr.it/T3w6lc «

If you would like to attend - or know someone who would like to attend:

At my local university the AG Geometric Modeling and Visualization organizes a summer school "Architectural Math for Bamboo Structures".

Because I am lazy I just insert screenshots of their instagram post and their flyer , and add a link to the uni:

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Screenshots of their flyer:

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More information can be found at the website of TU Dresden:

(Description of the topic in English language:)

https://tu-dresden.de/mn/math/geometrie/lordick/schnittstelle/veranstaltungen/summer-schools/bend-it-like-dini-architectural-math-for-bamboo-structures/topic

🛸🏢🌓

Reden wir über die ökologischen und sozioökonomischen Herausforderungen #Zukunftsdiskurs

In einer lebhaften Diskussion am 9. Januar 2024 beleuchteten Lars Feld, Direktor des Walter Eucken Instituts, und Jakob von Weizäcker, Minister der Finanzen und für Wissenschaft des Saarlands, die drängenden Fragen rund um die Schuldenbremse und nachhaltige Finanzpolitik in Deutschland. Moderiert wurde das Gespräch von Christian Leßmann von der TU Dresden. Im Zentrum der Debatte stand die Frage,…

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PhD Position in Numerical Simulation of Cell Biology TU Freiberg Interested in a PhD in Mathematics? Join us and use maths to answer fundamental questions on the organization of life See the full job description on jobRxiv: https://jobrxiv.org/job/tu-freiberg-27778-phd-position-in-numerical-simulation-of-cell-biology/?feed_id=65513 #ScienceJobs #hiring #research Freiberg #Germany #PhDStudent