Aus einem Skript mit dem Titel “Einführung in die Betriebswirtschaftslehre”:
Ok, nehmen wir mal an, dass wir solche eindimensionale Fragen stellen. Die vorgeschlagenen Antworten sind sogar nulldimensional:
Die ersten zwei Antworten sind schon sehr erhellend und sehr sachlich — überhaupt nicht reißerisch, duh… Aber die Dritte ist noch besser: “Dann geh’ doch nach Pjöngjang!” + “Smiley” Wirklich? Ernsthaft? Wirklich? W I R K L I C H ? Lesen diese Autoren die Zeilen, die sie produzieren?
Vielen Dank für dieses Diagramm mit absolut keinem Informationsgehalt.
Ja, wirtschaftswissenschaftlich gebildete Akademiker sind ganz besondere Leute; sie kennen nämlich die geometrische Reihe!
Some time ago, I did some code-massaging exercise and extracted a Framework part of MacVim: MacVimFramework target in qvacua/macvim on Github.
I (finally) found some time and included an absolute minimal proof-of-concept App that uses the Framework:MinimalMacVimtarget in the Xcode project. Basically it has one class (MinimalMacVim/MMAppDelegate.m) which is the delegate for everything. And for the sake of simplicity it does not handle many things like resizing the Vim-view properly when a new tab is created.
Over the course of time I’ll try to improve the Framework and make it easier to use. (Eg, some delegate methods should/can be handled automatically)
Maybe some other folks will find the Framework useful..
“The fact that the discipline of economics hasn’t helped us improve our predictive abilities suggests it is still far from being a science, and may never be. Still, the misperceptions persist. A student who graduates with a degree in economics leaves college with a bachelor of science, but possesses nothing so firm as the student of the real world processes of chemistry or even agriculture.
An effective chair of the central bank will be one who understands that economics is not yet a science and may never be. At this point it is a craft, to be executed with wisdom, not algorithms, in the design and management of institutions. […]”—Alex Rosenberg and Tyler Curtain, What Is Economics Good For?
“Wir leben in einer besonders merkwürdigen Zeit. Wir finden mit Erstaunen, dass der Fortschritt ein Bündnis mit der Barbarei geschlossen hat. […]”—Sigmund Freud, Der Mann Moses Und Die Monotheistische Religion
JM and I recently visited Stockholm. The travel went flawlessly and the weather was fantastic. We wandered around the Gamla stan (the old city). We also visited to the modern art museum and to the museum for design and architecture. At some point, we went into a Coop supermarket. Guess what we’ve found:
Come on!!! Seriously, you call this not-red-and-strange-looking-stuff Kimchi? OTL
Chrome is my default browser on all of my devices. On iOS though, there are few things that really bug me.
Useless tabless state
Look at the following two screenshots:
I get this state when I close the last tab; what is the purpose of this state? Should I look at the Chrome icon for one second before I have to press the “New Tab” button in order to get going? It’s just useless. Safari does a better job and opens a new tab immediately after the last tab is closed. In addition, the position of the hamburger button is different when there are tabs present:
Position of Close Button
The position of the close button changes when the device is in portrait or in landscape mode:
As I was reading the chapter 9 of Open Society and Its Enemies by K. R. Popper, I became aware of the striking resemblence between his treatise of social engineering and agile methodologies.
Popper criticizes Plato’s demand for a totalitarian and racialist state. In doing so, he discusses Plato’s version of social engineering which he calls the Utopian engineering:
These principles, if applied to the realm of political activity, demand that we must determine our ultimate political aim, or the Ideal State, before taking any practical action. Only when this ultimate aim is determined, […] only when we are in possession of something like a blueprint of the society at which we aim, only then can we begin to consider the best ways and means for its realization, and to draw up a plan for practical action. […] It is convincing and attractive.
A bluprint! This is a bona fide waterfall model: First plan a multi-year (IT) project in every detail. Then, you just execute the blueprint. It is indeed a convincing and attractive model, but deceiving. The big blueprint gives you a false sense of safety. It does not work in most cases.
[…] the Utopian attempt to realize an ideal state, using a blueprint of society as a whole, is one which demands a strong centralized rule of a few, and which therefore is likely to lead to a dictatorship.
This is also typical for the waterfall model: Developers are not sufficiently involved in architecture and design despite of the fact it is them who actually build the software.
He proposes a different “methodologically sound” approach: The piecemeal engineering:
The politician who adopts this method may or may not have a blueprint of society before his mind, he may or may not hope that mankind will one day realize an ideal state, and achieve happiness and perfection on earth. But he will be aware that perfection, if at all attainable, is far distant, and that every generation of men, and therefore also the living, have a claim; […] The piecemeal engineer will, accordingly, adopt the method of searching for, and fighting against, the greatest and most urgent evils of society, rather than searching for, and fighting for, its greatest ultimate good.
Iterations (or Sprints)! Be able to adapt to the current situation fast. Proceed step by step without necessarily having laid out a complete plan. Also, you should implement features first that have the most business value.
In favour of his method, the piecemeal engineer can claim that a systematic fight against suffering and injustice and war is more likely to be supported by the approval and agreement of a great number of people than the fight for the establishment of some ideal.
In agile process like Scrum this directly translates to Sprint Plannings: The developers—not nobody else—commit to user stories in the first planning. In the second planning they reach an agreement on the architecture and the design.
They are blueprints for single institutions, for health and unemployed insurance, for instance, or arbitration courts, or anti-depression budgeting, or educational reform. If they go wrong, the damage is not very great, and a re-adjustment not very difficult. They are less risky,
Reasonably sized and well formulated user stories are very important ingredients for success.
But the piecemeal method permits repeated experiments and continuous readjustments.
Continous improvement; Kaizen! This is agile at its best!
To conclude: The chapter in question, “Aestheticism, Perfectionism, Utopianism”, is really to be recommended; especially for agile methodologists. Just replace “Utopian engineering” and “piecemeal engineering” by “waterfall model” and “agile methods”, respectively and you will get a beautifully written endorsement for agile practices.
Negt: Dass wir nicht zur Kenntnis nehmen, dass diese Produktionskapazität nicht mehr das Problem ist, sondern die Verteilungsgerechtigkeit das Problem ist; die Verteilung des Produzierten. Wenn ich höre in den Nachrichten, dass Winterkorn nur noch 12 Millionen bekommt, da kommen einem ja die Tränen.
Wiebicke: Der VW-Chef.
Negt: VW-Chef… Da kommen einem ja die Tränen. Statt 20 nimmt er jetzt, verzichtet er also großzügig. Das kann doch nicht unter normalen Bedingungen als Gewinn von Gerechtigkeit angesehen werden, sondern da macht sich ein System über die Menschen lustig.
These are some notes which will be useful for creating a QuickLook plugin.
When you create a new QuickLook plugin target, the template will be automatically added to your project.
When you want to include some 3rd party frameworks in your plugin, these frameworks have to use @loader_path/../Frameworks as the Installation Directory, not @executable_path/../Frameworks: stackoverflow article
저는 독일의 본대학에서 이론입자물리학 현상론으로 박사 학위를 받은 김주민이라고 합니다. 제 남편 하태원은 이론입자물리학 끈이론으로 박사 학위를 받았습니다.
저희가 그 분야의 전문가도 아니고, 현재 연구직에 종사하고 있지도 않지만, 기사에 오류가 있는 듯하여 이렇게 메일을 드립니다. 다른 저명한 물리학자들에게 자문을 요청하여 기사를 정정해주시기를 부탁드립니다.
1) 7대 수학 난제의 하나는 다음과 같습니다:
Prove that for any compact simple gauge group G, a non-trivial quantum Yang–Mills theory exists on R^4 and has a mass gap Δ > 0.
그에 반해, 논문 (아마도 http://prd.aps.org/abstract/PRD/v87/i8/e085025 또는 http://arxiv.org/pdf/1206.6936v2.pdf)에서는 SU(2) gauge group에서 “색 감금”이 홀극에 의해 일어난다는 것을 보인 것으로 보입니다. 그런 측면에서, 위 문제의 a non-trivial … > 0 부분을 다룬다고 볼 수는 있으나, SU(2) gauge group을 특정하여 계산을 수행한 것이기 때문에 위의 문제를 풀었다고 보기는 어렵다고 생각됩니다. 논문 말미에 SU(3)(실제 양자색역학)에 대한 연구가 현재 진행되는 중이라고 언급되어 있는 것으로 보아, 모든 compact simple gauge group에 대한 연구는 아직 시간이 더 필요하다고 여겨지므로, 저 논문이(아마도 무척 중요한 연구일테지만) 7대 수학 난제를 풀었다고 볼 수는 없을 것 같습니다.
2) 우선, “쿼크와 글루온은 질량이 없는 입자”는 명백한 오류입니다. 쿼크는 질량이 있을 뿐 아니라, 전자에 비해 꽤 무거운 편입니다. (단,강입자의 질량은 쿼크들의 질량의 합보다 훨씬 큰데, 기사에 쓰신대로, 이는 “색감금” 하에 있는 쿼크와 글루온들의, 서로서로간의 상호작용 때문이라고 설명합니다.)
3) “‘신의 입자’로 불리며 모든 소립자에 질량을 부여하는 입자로 세간의 관심을 모은 ‘힉스’는 사실 전자의 질량을 만들어주는 입자로”는 오류라고 볼 수는 없지만, “양성자나 중성자 등 강입자들이 어떻게 질량을 갖게 됐는지를 밝히는…”과 관련하여 오독의 여지가 있습니다. 입자물리학의 표준 모델에 따르면 “힉스”는 전자(와 뮤온, 타우 입자)뿐 아니라 쿼크들에도 질량을 부여합니다. 또한, 표준 모형에는 뉴트리노에 질량을 부여하는 메카니즘이 포함되어 있지 않으므로, 실제로 힉스가 “모든 소립자에 질량을 부여하는 입자”로 알려졌다면 잘못 알려졌다고 할 수 있습니다.
4) “’양-밀스 이론’에 따르면 양성자와 중성자 등 입자에는 질량이 없다.”도 정확하다고 볼 수는 없는 것 같습니다. 순수한 양-밀스 이론에는 양성자와 중성자를 이루는 쿼크들에 대응하는 항이 없습니다. “질량이 없다”는 것은 쿼크들의 존재를 이미 가정한 것이지요 (물리학에서 이 둘은 완전히 다른 얘기입니다.). 한편, 순수한 양-밀스 이론을 확장시켜 쿼크와 글루온의 상호작용에 대응하는 항을 포함시킬 수 있는데, (쿼크의 질량이 없더라도) 양성자와 중성자의 질량은 이 상호작용으로 설명될 수 있기 때문입니다.
5) “우주 질량의 대부분은 전자가 그 주변을 회전하고 있는 원자핵의 양성자와 중성자가 차지한다.”도 명백한 오류입니다. 우주 질량의 대부분은 암흑에너지와 암흑물질이 차지한다는 것은 정밀한 천체물리학의 관측들(WMAP, 최근의 Planck)로 입증되었다고 할 수 있습니다.
Although long seen as the most distinctive emblem of Islam, the veil is, surprisingly, not enjoined upon Muslim women anywhere in the Quran. The tradition of veiling and seclusion (known together as hijab) was introduced into Arabia long before Muhammad, primarily through Arab contacts with Syria and Iran, where the hijab was a sign of social status. After all, only a woman who need not work in the fields could afford to remain secluded and veiled.
In the Ummah, there was no tradition of veiling until around 627 C.E., when the so-called “verse of hijab” suddenly descended upon the community. That verse, however, was addressed not to women in general, but exclusively to Muhammad’s wives: “Believers, do not enter the Prophet’s house… unless asked. And if you are invited… do not linger. And when you ask something from the Prophet’s wives, do so from behind a hijab. This will assure the purity of your hearts as well as theirs” (33:53).
”—Reza Aslan, No God but God: Anyone who wants to talk about Islam in the public should first read Aslan’s book.
JM bought the Korean ebook “Books of My Days” by Rhyu Simin. He is a famous intellectual in South Korea and until recently also a famous politician. As far as JM told me, he has been one of few influential progressive liberal politician. Anyway, JM recommended this book to me and I read it: A nice book indeed. He talks about books which influenced him in his young days and discusses them. Examples include
Crime and Punishment by Dostoyevsky,
The Communist Manifesto by Engels and Marx—these are the only books that I have also read—and bunch of other books. JM composed her own list in her blog and I am listing here books which come to my mind:
The Stranger by Camus: The first sentence of this book has it all.
Once in a while, when testing your Objective-C code, you want or have to mock a class method. Or you want to replace the implementation of a class method. The following code replaces the implementation of originalClassMethod of SomeClass with the implementation of mockClassMethod of MockClass:
“Wir werden ihm, diesem unseren Staat, das geben, dessen er bedarf. Seine Autorität, wo immer sie gebraucht wird, legitimiert sich allein aus dem Grundgesetz und aus den von den Volksvertretungen beschlossenen Gesetzen. Wir werden unseren Staat weder den Kurzschlüssen der Panik noch den Interessen privilegierter Gruppen ausliefern. Recht und Gesetz beruhen nicht primär auf Justiz und Polizei, so lebensnotwendig beide Institutionen sind und so sehr sie des Verständnisses und der Unterstützung aller Bürger bedürfen. Recht und Gesetz beruhen zuallererst auf der Gerechtigkeit: Schutz der Schwachen, Bändigung der Mächtigen und der übermütigen; sie erfordern einen Staat, der das Notwendige — mit Hilfe klarer Gesetze und einer effektiven Verwaltung — auch gegen die geballten Interessen von Privilegierten durchsetzen kann.”—Willy Brandt, 12. Oktober 1972
“Chief among these was the stoning to death of adulterers, a punishment which has absolutely no foundation whatsoever in the Quran but which Umar justified by claiming it had originally been part of the Revelation and had somehow been left out of the authorized text. Of course, Umar never explained how it was possible for a verse such as this “accidentally” to have been left out of the Divine Revelation of God, but then again, he didn’t have to.”—Reza Aslan, No god but God
Psy verkörpert all das, was Südkoreas Bürokraten ablehnen. Mit einer Ausnahme: Er hat im Ausland Erfolg. Eine konservative Zeitung befand daher, Psy sei der ‘am besten vermarktbare Kulturexport Südkoreas. Der linke Hankyoreh spottete, das rechte Blatt habe nicht einmal Psys Ironie kapiert.
Respekt vor der Süddeutsche, dass sie Hankyoreh (한겨레) kennt und sie richtig als linke Zeitung bezeichnet!