#frg — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #frg, aggregated by home.social.
-
RE: https://bots.defencegeeks.net/@defense_news/116930229354059349
#brd #frg #schweden #sweden : #nato / #bundeswehr / #aufrüstung / #militarybuildup
Where does all the money go?
For example, here: -
#frg #israel #palestine : #gaza / #westbnk #opt / #uno / #unrwa / #lobbying / #discredition / #foreignpolicy
„A report by the Rosa Luxemburg Foundation maps a #network of Israel advocacy groups that work to influence Berlin to discredit the UN agency for Palestinians, which the groups say has ties to Hamas and is beyond reform. 'The debate over UNRWA was definitely not evidence-based,' a former policymaker tells Haaretz.“
-
#frg #israel #palestine : #gaza / #westbnk #opt / #uno / #unrwa / #lobbying / #discredition / #foreignpolicy
„A report by the Rosa Luxemburg Foundation maps a #network of Israel advocacy groups that work to influence Berlin to discredit the UN agency for Palestinians, which the groups say has ties to Hamas and is beyond reform. 'The debate over UNRWA was definitely not evidence-based,' a former policymaker tells Haaretz.“
-
Cabin Solitude by Aerial Photography
https://tmblr.co/Z7VXvxjc9aXayy00
#by #frg #ndb #24022014 #5d368323 #backhaus #baudenkmal #baum #bavaria #bavarianforest #bayerischerwald #bayern #braun #d27213424 #deutschland #farbe #forstdiensthütte #forstdiensthüttetummelplatz #fotoklausleidorfwwwleidorfde #germany #grau #hütte #kulturlandschaft #landscapeandnature #landschaft #landschaftnatur #laubbaum #luftaufnahme #luftbild #mauth
-
Cabin Solitude by Aerial Photography
https://tmblr.co/Z7VXvxjc9aXayy00
#by #frg #ndb #24022014 #5d368323 #backhaus #baudenkmal #baum #bavaria #bavarianforest #bayerischerwald #bayern #braun #d27213424 #deutschland #farbe #forstdiensthütte #forstdiensthüttetummelplatz #fotoklausleidorfwwwleidorfde #germany #grau #hütte #kulturlandschaft #landscapeandnature #landschaft #landschaftnatur #laubbaum #luftaufnahme #luftbild #mauth
-
Cabin Solitude by Aerial Photography
https://tmblr.co/Z7VXvxjc9aXayy00
#by #frg #ndb #24022014 #5d368323 #backhaus #baudenkmal #baum #bavaria #bavarianforest #bayerischerwald #bayern #braun #d27213424 #deutschland #farbe #forstdiensthütte #forstdiensthüttetummelplatz #fotoklausleidorfwwwleidorfde #germany #grau #hütte #kulturlandschaft #landscapeandnature #landschaft #landschaftnatur #laubbaum #luftaufnahme #luftbild #mauth
-
Cabin Solitude by Aerial Photography
https://tmblr.co/Z7VXvxjc9aXayy00
#by #frg #ndb #24022014 #5d368323 #backhaus #baudenkmal #baum #bavaria #bavarianforest #bayerischerwald #bayern #braun #d27213424 #deutschland #farbe #forstdiensthütte #forstdiensthüttetummelplatz #fotoklausleidorfwwwleidorfde #germany #grau #hütte #kulturlandschaft #landscapeandnature #landschaft #landschaftnatur #laubbaum #luftaufnahme #luftbild #mauth
-
Cabin Solitude by Aerial Photography
https://tmblr.co/Z7VXvxjc9aXayy00
#by #frg #ndb #24022014 #5d368323 #backhaus #baudenkmal #baum #bavaria #bavarianforest #bayerischerwald #bayern #braun #d27213424 #deutschland #farbe #forstdiensthütte #forstdiensthüttetummelplatz #fotoklausleidorfwwwleidorfde #germany #grau #hütte #kulturlandschaft #landscapeandnature #landschaft #landschaftnatur #laubbaum #luftaufnahme #luftbild #mauth
-
#frg #usa #israel #lebanon : #militaryinvasion / #warfare / #warcrime / #interntuonallaw / #tnc / #bayer / #monsanto / #ngo / #cbg / #hrw / #medicointernational
»Israel previously 'tested' internationally banned #whitephosphorus in densely populated areas across #Gaza. (…)
“There is strong evidence that phosphorus used in the Middle East war comes from Bayer’s #glyphosate production facility in Soda Springs in the United States.”«
-
#frg #usa #israel #lebanon : #militaryinvasion / #warfare / #warcrime / #interntuonallaw / #tnc / #bayer / #monsanto / #ngo / #cbg / #hrw / #medicointernational
»Israel previously 'tested' internationally banned #whitephosphorus in densely populated areas across #Gaza. (…)
“There is strong evidence that phosphorus used in the Middle East war comes from Bayer’s #glyphosate production facility in Soda Springs in the United States.”«
-
#frg #israel : #militarycooperation / #foreignpolicy
„Germany and Israel held a joint naval exercise off the coast of Haifa on Thursday, with the Israeli military describing the drill as a step toward strengthening operational cooperation between the two navies.“
-
#frg #israel #palestine #gaza #genocide #politicalparty
2/2
… rights organizations, and numerous experts in international law have described the situation as genocide against the Palestinians in Gaza. It endorses this assessment. At the same time, it includes a commitment to the right of the State of Israel to exist, as well as to the right of a Palestinian state to exist.
[Translation by DeepL]
-
#frg #israel #palestine #gaza #genocide #politicalparty
2/2
… rights organizations, and numerous experts in international law have described the situation as genocide against the Palestinians in Gaza. It endorses this assessment. At the same time, it includes a commitment to the right of the State of Israel to exist, as well as to the right of a Palestinian state to exist.“
[Translation by DeepL]
-
#frg #israel #palestine : #gaza / #genocide / #politicalparty
„The Left Votes to Label Israel’s Actions in the Gaza War as “Genocide”
Late in the evening at its national party convention, The Left passed a resolution by a large majority to label Israel’s actions in the Gaza War as “genocide.” A lively debate on the topic had taken place prior to the vote.
The resolution states that international organizations, human …
[Original source see below]
-
#frg #israel #palestine : #gaza / #genocide / #politicalparty
„The Left Votes to Label Israel’s Actions in the Gaza War as “Genocide”
Late in the evening at its national party convention, The Left passed a resolution by a large majority to label Israel’s actions in the Gaza War as “genocide.” A lively debate on the topic had taken place prior to the vote.
The resolution states that international organizations, human …
[Original source see below]
-
#usa #frg #israel #palestine : #gaza / #genocide / #warfinance / #complicity
„[O]ne company became the single largest foreign financier of the Israeli state – holding more in Israeli government bonds than the US, the UK, France & every other country put together.
That company is #Allianz, the German insurance & financial services giant, alongside its California-based bond management subsidiary #PIMCO, the world's largest active bond manager.“
-
#usa #frg #israel #palestine : #gaza / #genocide / #warfinance / #complicity
„[O]ne company became the single largest foreign financier of the Israeli state – holding more in Israeli government bonds than the US, the UK, France & every other country put together.
That company is #Allianz, the German insurance & financial services giant, alongside its California-based bond management subsidiary #PIMCO, the world's largest active bond manager.“
-
To whom it may concern: BSM-Party wird abgeschaltet
-
To whom it may concern: BSM-Party wird abgeschaltet
-
#frg #usa #israel #palestine : #zionism / #ethnonationalism / #supremacy / #greaterisrael / #essay
„Criticism of the #ideology underpinning Israel's foundation remains contentious in Germany. In the US, however, a significant shift is taking place. The Zionist consensus within the Jewish community is fracturing and debate is opening up.“
https://qantara.de/en/article/israel-and-palestine-how-talk-about-zionism
-
#frg #usa #israel #palestine : #zionism / #ethnonationalism / #supremacy / #greaterisrael / #essay
„Criticism of the #ideology underpinning Israel's foundation remains contentious in Germany. In the US, however, a significant shift is taking place. The Zionist consensus within the Jewish community is fracturing and debate is opening up.“
https://qantara.de/en/article/israel-and-palestine-how-talk-about-zionism
-
#frg #usa #israel #palestine : #zionism / #ethnonationalism / #supremacy / #greaterisrael / #essay
„Criticism of the #ideology underpinning Israel's foundation remains contentious in Germany. In the US, however, a significant shift is taking place. The Zionist consensus within the Jewish community is fracturing and debate is opening up.“
https://qantara.de/en/article/israel-and-palestine-how-talk-about-zionism
-
#paperOfTheDay is "Exact evolution equation for the effective potential" from 1993 by Christof Wetterich. This is the paper where the Wetterich equation is first introduced in its modern form.
In #quantumFieldTheory , there are "quantum fluctuations" which lead to the full theory being different from the Lagrangian or action one starts with. A famous example is light by light scattering in QED: The Lagrangian in quantum electrodynamics contains basically one type of allowed interaction, namely matter (such as electrons) emitting or absorbing one photon. This can take many different forms in practice, for example Bremsstrahlung (electron being accelerated and producing photon), or electrostatic repulsion (photons being exchanged between two electrons, accelerating them away from each other). QED does not allow for an elementary interaction between photons. But such interaction does in fact take place due to #quantum fluctuations with "virtual" intermediate electrons. A central task for theoretical #physics is to compute such effects.
The effective action contains all such quantum effects, that is, if one uses the effective action as a "classical" one (without adding further quantum corrections), one obtains the full quantum answer. Many different methods are known to compute the effective action, several of them based on the renormalization group. Compared to the previous work by Wilson, Wegner, and Polchinski, the Wetterich equation is somewhat more explicit in terms of interpretation, and it has the advantage of directly giving the quantum effective action and not some proxy quantity. It has by now become the cornerstone of functional renormalization group ( #FRG ) methods. https://www.sciencedirect.com/science/article/pii/037026939390726X?via%3Dihub -
#paperOfTheDay is "Exact evolution equation for the effective potential" from 1993 by Christof Wetterich. This is the paper where the Wetterich equation is first introduced in its modern form.
In #quantumFieldTheory , there are "quantum fluctuations" which lead to the full theory being different from the Lagrangian or action one starts with. A famous example is light by light scattering in QED: The Lagrangian in quantum electrodynamics contains basically one type of allowed interaction, namely matter (such as electrons) emitting or absorbing one photon. This can take many different forms in practice, for example Bremsstrahlung (electron being accelerated and producing photon), or electrostatic repulsion (photons being exchanged between two electrons, accelerating them away from each other). QED does not allow for an elementary interaction between photons. But such interaction does in fact take place due to #quantum fluctuations with "virtual" intermediate electrons. A central task for theoretical #physics is to compute such effects.
The effective action contains all such quantum effects, that is, if one uses the effective action as a "classical" one (without adding further quantum corrections), one obtains the full quantum answer. Many different methods are known to compute the effective action, several of them based on the renormalization group. Compared to the previous work by Wilson, Wegner, and Polchinski, the Wetterich equation is somewhat more explicit in terms of interpretation, and it has the advantage of directly giving the quantum effective action and not some proxy quantity. It has by now become the cornerstone of functional renormalization group ( #FRG ) methods. https://www.sciencedirect.com/science/article/pii/037026939390726X?via%3Dihub -
#frg #israel #palestine : #gaza / #genocide / #protest / #staatsräson / #reasonofstate / #symbols / #domesticintelligenceagency / #bfv /
#criminalization / #repression / #witchhunt„Document comes days after government published dossier of 'secular Palestinian extremist' symbols, such as the watermelon and the Handala cartoon.“
https://www.middleeasteye.net/news/capitalism-and-east-coast-germanys-new-list-antisemitic-codes
-
#frg #israel #palestine : #gaza / #genocide / #protest / #staatsräson / #reasonofstate / #symbols / #antisemitism / #domesticintelligenceagency / #bfv /
#criminalization / #repression / #witchhunt„Document comes days after government published dossier of 'secular Palestinian extremist' symbols, such as the watermelon and the Handala cartoon.“
https://www.middleeasteye.net/news/capitalism-and-east-coast-germanys-new-list-antisemitic-codes
-
#paperOfTheDay "Integrating out Gluons in Flow equations" from 1996 is another early article about the functional renormalization group #frg , but this time applied to #QCD. The article is relatively long and contains many technicalities, but the main idea is the following: Like every #quantumFieldTheory , QCD contains "quantum fluctuations" on every energy scale, which can be integrated out from high to low energy with the help of a renormalization group flow equation. Unlike the scalar field theories that are often studied as toy models, QCD contains two fundamentally different types of fields: The fermions (quarks), which represent matter, and the bosons (gluons), which are particles of the strong force. Now it turns out that one can arrange the flow equations in such a way that only one type of field is (at first) integrated out, and serves as an "input" for the flow of the other. In principle, this would be exact and yield a full solution of QCD (which still today would be a breakthrough in #physics ), but in practice of course one has to use truncations and approximations. In fact, the computations presented in the paper are rather "coarse" and don't really produce new results; the point is rather to establish the method.
What is interesting is that here, the gluons are integrated out, and one obtains an effective theory for the interaction of matter. This sounds reasonable, but it is the opposite of how lattice simulations (another well-developed approach at non-perturbative QCD) work: There, the gluon field is being simulated, and the fermions are merely a correction term.
https://arxiv.org/abs/hep-ph/9604227 -
#paperOfTheDay "Integrating out Gluons in Flow equations" from 1996 is another early article about the functional renormalization group #frg , but this time applied to #QCD. The article is relatively long and contains many technicalities, but the main idea is the following: Like every #quantumFieldTheory , QCD contains "quantum fluctuations" on every energy scale, which can be integrated out from high to low energy with the help of a renormalization group flow equation. Unlike the scalar field theories that are often studied as toy models, QCD contains two fundamentally different types of fields: The fermions (quarks), which represent matter, and the bosons (gluons), which are particles of the strong force. Now it turns out that one can arrange the flow equations in such a way that only one type of field is (at first) integrated out, and serves as an "input" for the flow of the other. In principle, this would be exact and yield a full solution of QCD (which still today would be a breakthrough in #physics ), but in practice of course one has to use truncations and approximations. In fact, the computations presented in the paper are rather "coarse" and don't really produce new results; the point is rather to establish the method.
What is interesting is that here, the gluons are integrated out, and one obtains an effective theory for the interaction of matter. This sounds reasonable, but it is the opposite of how lattice simulations (another well-developed approach at non-perturbative QCD) work: There, the gluon field is being simulated, and the fermions are merely a correction term.
https://arxiv.org/abs/hep-ph/9604227 -
#paperOfTheDay "Critical Exponents from the Effective Average Action" from 1993 is one of the early works of what is now known as the functional renormalization group #frg , called at that time "exact non-perturbative evolution equation". In #quantumFieldTheory and statistical #physics , the behaviour of a system is different for different energy scales. This change is captured by the renormalization group: Changing the energy scale gives back a similar system, but with different numerical values of couplings or masses.
The functional renormalization group equation is a "flow equation" for the quantum effective action. Basically, it expresses the change of all correlation functions under change of energy scale. One can also view it as a successive solution of the path integral, where one starts with the classical (tree-level) action, and successively integrates out high-energy modes, so that , when one reaches zero energy, the full path integral has been performed and one has found the full quantum effective action.
Of course, the functional renormalization group equation can not be solved in closed form for any meaningful theory, so one is forced to introduce approximations. One can recover the usual coupling/loop expansion ( #FeynmanIntegral s), but also other types of approximation schemes are possible, for example including only 1PI correlation functions up to a certain number of legs.
The present paper is concerned with O(N) symmetric scalar fields in D=3 space dimensions. They demonstrate that with a suitable low-order approximation of the flow equations, one can indeed compute the critical exponents of this theory to a few percent accuracy.
https://arxiv.org/abs/hep-ph/9308214 -
#paperOfTheDay "Critical Exponents from the Effective Average Action" from 1993 is one of the early works of what is now known as the functional renormalization group #frg , called at that time "exact non-perturbative evolution equation". In #quantumFieldTheory and statistical #physics , the behaviour of a system is different for different energy scales. This change is captured by the renormalization group: Changing the energy scale gives back a similar system, but with different numerical values of couplings or masses.
The functional renormalization group equation is a "flow equation" for the quantum effective action. Basically, it expresses the change of all correlation functions under change of energy scale. One can also view it as a successive solution of the path integral, where one starts with the classical (tree-level) action, and successively integrates out high-energy modes, so that , when one reaches zero energy, the full path integral has been performed and one has found the full quantum effective action.
Of course, the functional renormalization group equation can not be solved in closed form for any meaningful theory, so one is forced to introduce approximations. One can recover the usual coupling/loop expansion ( #FeynmanIntegral s), but also other types of approximation schemes are possible, for example including only 1PI correlation functions up to a certain number of legs.
The present paper is concerned with O(N) symmetric scalar fields in D=3 space dimensions. They demonstrate that with a suitable low-order approximation of the flow equations, one can indeed compute the critical exponents of this theory to a few percent accuracy.
https://arxiv.org/abs/hep-ph/9308214 -
#paperOfTheDay "Derivative expansion of the exact renormalization group" from 1994 is a follow-up on yesterday's paper, by the same author. Here, he uses the (then) new functional #renormalization group #FRG equations and introduces a certain expansion in momenta, which he then studies for the scalar flip-symmetric model (i.e. the avatar of phi^4 theory). This gives rise to two non-linear differential equations, which can be solved numerically, and produce numerical values of the critical exponents rather close to the correct ones.
It seems to me that this method is surprisingly simple -- solving few differential equations instead of coupled integral equations -- and the author claims repeatedly that it can be systematically improved at will. It didn't entirely become clear to me why he does not do that. After all, computing critical exponents for phi^4 theory is one of the globally accepted benchmarks for methods in field theory and statistics, which would give much credibility to this new method. Perhaps the concrete technical challenges were too big, even if a systematic expansion is possible conceptually.
I would be interested to know if now, 30 years later, this systematic momentum expansion has been continued to higher order, or if it has been replaced by another method.
doi.org/10.1016/0370-2693(94)90767-6 -
#paperOfTheDay "Derivative expansion of the exact renormalization group" from 1994 is a follow-up on yesterday's paper, by the same author. Here, he uses the (then) new functional #renormalization group #FRG equations and introduces a certain expansion in momenta, which he then studies for the scalar flip-symmetric model (i.e. the avatar of phi^4 theory). This gives rise to two non-linear differential equations, which can be solved numerically, and produce numerical values of the critical exponents rather close to the correct ones.
It seems to me that this method is surprisingly simple -- solving few differential equations instead of coupled integral equations -- and the author claims repeatedly that it can be systematically improved at will. It didn't entirely become clear to me why he does not do that. After all, computing critical exponents for phi^4 theory is one of the globally accepted benchmarks for methods in field theory and statistics, which would give much credibility to this new method. Perhaps the concrete technical challenges were too big, even if a systematic expansion is possible conceptually.
I would be interested to know if now, 30 years later, this systematic momentum expansion has been continued to higher order, or if it has been replaced by another method.
doi.org/10.1016/0370-2693(94)90767-6 -
#frg #israel #palestine : #gaza / #genocide / #elbitsystems / #directnonviolentaction / #ulm5 / #criminalization
„In addition to charges of trespass and damage to property, the group is accused of "membership of a criminal organisation" - namely Palestine Action Germany - under Section 129 of the German penal code.
This legal statute is commonly applied in cases of "terrorism" and organised crime, and can lead to a prison sentence of up to five years.“
-
#frg #israel #palestine : #gaza / #genocide / #elbitsystems / #directnonviolentaction / #ulm5 / #criminalization
„In addition to charges of trespass and damage to property, the group is accused of "membership of a criminal organisation" - namely Palestine Action Germany - under Section 129 of the German penal code.
This legal statute is commonly applied in cases of "terrorism" and organised crime, and can lead to a prison sentence of up to five years.“
-
Drachenfels overlooks the Rhine Valley, just a few kilometres from the home of Konrad Adenauer, the first German Chancellor after the end of the Nazi dictatorship.: https://photoblog.joernvanselow.name/?ref=mastodon&id=117
#photography #fotografie #germany #drachenfels #idyll #frg #westgermany
-
Drachenfels overlooks the Rhine Valley, just a few kilometres from the home of Konrad Adenauer, the first German Chancellor after the end of the Nazi dictatorship.: https://photoblog.joernvanselow.name/?ref=mastodon&id=117
#photography #fotografie #germany #drachenfels #idyll #frg #westgermany
-
Garden Café on the Petersberg in Germany. Before reunification, the former hotel on the Petersberg served as the official guesthouse of the West German federal government.: https://photoblog.joernvanselow.name/?ref=mastodon&id=116
#photography #fotografie #germany #petersberg #idyll #frg #westgermany
-
Garden Café on the Petersberg in Germany. Before reunification, the former hotel on the Petersberg served as the official guesthouse of the West German federal government.: https://photoblog.joernvanselow.name/?ref=mastodon&id=116
#photography #fotografie #germany #petersberg #idyll #frg #westgermany
-
#brd #frg #israel #palästina #palestine : #gaza / #repression / #antisemitism
„Manufacturing Consent in Germany ist eine Sammlung von frei zugänglichen Materialien aus dem Internet, die helfen, das zunehmend repressive Klima in Deutschland strukturell zu verstehen.”
„Manufacturing Consent in Germany is a collection of freely accessible materials from the Internet that help to structurally understand the increasingly repressive climate in Germany.”
https://www.wirklichkeitbooks.com/manufacturing-consent-in-germany-a-syllabus
-
#brd #frg #israel #palästina #palestine : #gaza / #repression / #antisemitism
„Manufacturing Consent in Germany ist eine Sammlung von frei zugänglichen Materialien aus dem Internet, die helfen, das zunehmend repressive Klima in Deutschland strukturell zu verstehen.”
„Manufacturing Consent in Germany is a collection of freely accessible materials from the Internet that help to structurally understand the increasingly repressive climate in Germany.”
https://www.wirklichkeitbooks.com/manufacturing-consent-in-germany-a-syllabus
-
#usa #israel #iran #uk #france #frg : #militarymission / #navalvessels
("We are here on a strictly peaceful mission," comes the calls from the gunboats.
"Thank you for visiting, but we’re living in peace here again now.")„France & Britain said on Fri., April 17, they will lead a multinational mission ensure #freedomofnavigation in the #StraitofHormuz, while emphasizing the force would be entirely defensive – & only deployed once a #peace in the region was agreed.“
-
#usa #israel #iran #uk #france #frg : #militarymission / #navalvessels
("We are here on a strictly peaceful mission," comes the calls from the gunboats.
"Thank you for visiting, but we’re living in peace here again now.")„France & Britain said on Fri., April 17, they will lead a multinational mission ensure #freedomofnavigation in the #StraitofHormuz, while emphasizing the force would be entirely defensive – & only deployed once a #peace in the region was agreed.“
-
Aviation weather for Republic airport in Farmingdale area (USA) is “METAR KFRG 301453Z 21013G21KT 10SM SCT110 14/06 A3019 RMK AO2 SLP223 T01390061 58016” : See what it means on https://www.bigorre.org/aero/meteo/kfrg/en #republicairport #airport #farmingdale #usa #kfrg #frg #metar #aviation #aviationweather #avgeek vl
-
Aviation weather for Republic airport in Farmingdale area (USA) is “METAR KFRG 301453Z 21013G21KT 10SM SCT110 14/06 A3019 RMK AO2 SLP223 T01390061 58016” : See what it means on https://www.bigorre.org/aero/meteo/kfrg/en #republicairport #airport #farmingdale #usa #kfrg #frg #metar #aviation #aviationweather #avgeek vl
-
#frg #israel : #automobileindustry / #multinational / #militarization / #armament
„ #Volkswagen is considering plans to convert one of its German car factories into a production hub for Israel’s missile defence systems, the Financial Times reported on Tuesday.
The carmaker has held talks with Israel's #RafaelAdvancedDefenseSystems about repurposing its #Osnabruck plant, shifting from vehicle production to manufacturing components for Israel’s #IronDome system.“
https://www.middleeasteye.net/news/nazi-era-weapons-maker-volkswagen-eyes-return-arms-production-time-israel -
#frg #israel : #automobileindustry / #multinational / #militarization / #armament
„ #Volkswagen is considering plans to convert one of its German car factories into a production hub for Israel’s missile defence systems, the Financial Times reported on Tuesday.
The carmaker has held talks with Israel's #RafaelAdvancedDefenseSystems about repurposing its #Osnabruck plant, shifting from vehicle production to manufacturing components for Israel’s #IronDome system.“
https://www.middleeasteye.net/news/nazi-era-weapons-maker-volkswagen-eyes-return-arms-production-time-israel