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PHD Comics: Running Behind

PHD Comics: Running Behind

recharging your funnybone's battery.. The Joy of Tech is a comic about technology and pop culture, created by Nitrozac and Snaggy, and updated three times a week. We like to feature the people and events that are making today's tech and pop culture news. We've been making comics on the web since early 1999, starting off with After Y2K, and then The Joy of Tech, which is now in its whoa... 17th year! You can follow us on Google+ at +Nitrozac JoT and +Snaggy JoT and +JoyofTech We currently live on Vancouver Island, Canada, where we have a lovely perspective of the silicon valleys to the south. TRAZO, LÍNEA, MANCHA What's new | Updates on my research and expository papers, discussion of open problems, and other maths-related topics. By Terence Tao

Dejad de Propagar el Mito de los Estilos de Aprendizaje Dejad de Propagar el Mito de los Estilos de Aprendizaje Paul A. Kirschner Open University of the Netherlands, Valkenburgerweg 177, 6419AT Heerlen, The Netherlands University of Oulu, Oulu, Finland Correo electrónico: paul.kirschner@ou.nl. Traducido y adaptado por: Héctor Pijeira Diaz y Raidell Avello Martínez Artículo Original (Source): Kirschner, P. Blog Original: y Resumen Los seres humanos nos diferenciamos unos de otros en multitud de formas, y como tal, nuestras preferencias varían en cuanto a música, alimentación o aprendizaje, por ejemplo. “Ninguna suma de creencias hace de algo un hecho” – James Randi “Todo hombre tiene derecho a su propia opinión, pero ningún hombre tiene derecho a equivocarse en sus actos” – Bernard Baruch[1] El 18 de agosto usted tuiteó: “¡La revista científica Computers & Education publica bulos sobre estilos de aprendizaje! Tabla 2. Fig. 1.

QC: New Comics Every Monday Through Friday 不确定性原理的前世今生 · 数学篇(一) | Imaginary 在现代数学中有一个很容易被外行误解的词汇:信号 (signal)。当数学家们说起「一个信号」的时候,他们脑海中想到的并不是交通指示灯所发出的闪烁光芒或者手机屏幕顶部的天线图案,而是一段可以具体数字化的信息,可以是声音,可以是图像,也可是遥感测量数据。简单地说,它是一个函数,定义在通常的一维或者多维空间之上。譬如一段声音就是一个定义在一维空间上的函数,自变量是时间,因变量是声音的强度,一幅图像是定义在二维空间上的函数,自变量是横轴和纵轴坐标,因变量是图像像素的色彩和明暗,如此等等。 在数学上,关于一个信号最基本的问题在于如何将它表示和描述出来。按照上面所说的办法,把一个信号理解成一个定义在时间或空间上的函数是一种自然而然的表示方式,但是它对理解这一信号的内容来说常常不够。 这通常被称为波形图。 这两种描述之间的关系是怎样的呢? 1807 年,法国数学家傅立叶 (J. 用今天的语言来描述,傅立叶的发现实际上是在说:任何一个信号都可以用两种方式来表达,一种就是通常意义上的表达,自变量是时间或者空间的坐标,因变量是信号在该处的强度,另一种则是把一个信号「展开」成不同频率的简单三角函数(简谐振动)的叠加,于是这就相当于把它看作是定义在所有频率所组成的空间(称为频域空间)上的另一个函数,自变量是不同的频率,因变量是该频率所对应的简谐振动的幅度。 这两个函数一个定义在时域(或空域)上,一个定义在频域上,看起来的样子通常截然不同,但是它们是在以完全不同的方式殊途同归地描述着同一个信号。 傅立叶变换是一个数学上极为精美的对象: 它是完全可逆的,任何能量有限的时域或空域信号都存在唯一的频域表达,反之亦然。 傅立叶变换就象是把信号彻底打乱之后以最面目全非的方式复述出来,而一切信息都还原封不动的存在着。 在傅立叶变换的所有这些数学性质中,最不寻常的是这样一种特性:一个在时域或空域上看起来很复杂的信号(譬如一段声音或者一幅图像)通常在频域上的表达会很简单。 这是一个意味深长的事实,它说明一个在空域中看起来占满全空间的信号,从频域中看起来很可能只不过占用了极小一块区域,而大部分频率是被浪费了的。 基本上,这正是今天大多数数据压缩方法的基础思想。 这当然是傅立叶本人也始料未及的。

EPS数据 John Baez's Stuff This Week's Finds - Latest Edition Fun Stuff Serious Stuff Talks Seminar Diary Twitter Google+ Azimuth Blog Azimuth Project Visual Insight n-Category Café Physics FAQ I'm a mathematical physicist. I work at the math department at U. C. Riverside in California, and also at the Centre for Quantum Technologies in Singapore. I'm working on network theory, information theory, and the Azimuth Project, which is a way for scientists, engineers and mathematicians to do something about the global ecological crisis. What's New? I'm helping run a new journal on applied category theory. Check out my free online course on applied category theory! Together with three students at Applied Category Theory 2018, I wrote a paper on biochemical coupling through emergent conservation laws. Learn about quantum mechanics and the dodecahedron: Then read about the glories of the 600-cell (Part 1, Part 2, Part 3), which is a 4-dimensional analogue of the icosahedron: Part 1 - Problems with infinity.

Luming Duan' PERSONAL HOMEPAGE Group members Research and publications Teaching Links Welcome to the webpage for theoretical quantum optics and quantum information group at the University of Michigan. Group members Faculty Luming Duan E. Tel: ++1 734 763-3179 Fax: ++1 626 764-5153 Email: lmduan@umich.edu Web: List of publications Graduate students and postdocs: Tanvi Gujarati Zhengyu Zhang Yukai Wu Ceren Burcak Dag Former group members: Shengtao Wang, Yong Yu, Zhen Zhang, Dong-Ling Deng, Chao Shen, Zhe-Xuan Gong, Yang-Hao Chan, Wei Yi, Shi-Liang-Zhu, Khan Mahmud, Timothy Bodiya, Bin Wang, Xiong Jin, Zhaohui Wei, Zhangqi Yin, Wei Zhang, Tim Goodman, Jason Kestner, Guin-Dar Lin, Yong-Jian Han, Yue Wu Research Research Overview Quantum Information Science Our research focuses on theory and implementation of quantum information science. Physics of ultracold atoms Publications Teaching Service Links

Gerard ’t Hooft, Theoretical Physics as a Challenge by Gerard 't Hooft Note: This web site will soon be removed from its present address. An updated and renewed version is available at: This is a web site for young students - and anyone else - who are (like me) thrilled by the challenges posed by real science, and who are - like me - determined to use their brains to discover new things about the physical world that we are living in. It so often happens that I receive mail - well-intended but totally useless - by amateur physicists who believe to have solved the world. It should be possible, these days, to collect all knowledge you need from the internet. I can tell you of my own experiences. Theoretical Physics is like a sky scraper. Note that this site NOT meant to be very pedagogical. Languages:English is a prerequisite. French, German, Spanish and Italian may be useful too, but they are not at all necessary. Return to List Now, first things first : Algebraic equations.

Calling Bullshit — Syllabus Logistics Course: INFO 270 / BIOL 270. University of Washington Next offered: Autumn Quarter 2019 Credit: 3 credits, graded Enrollment: To be determined Instructors: Carl T. Learning Objectives Our learning objectives are straightforward. Remain vigilant for bullshit contaminating your information diet. We will be astonished if these skills do not turn out to be among the most useful and most broadly applicable of those that you acquire during the course of your college education. Schedule and readings Each of the week-long modules will explore one specific facet of bullshit. Modules Week 1. Harry Frankfurt (1986) On Bullshit. Supplementary readings Week 2. Week 3. Gordon Pennycook et al. (2015) On the reception and detection of pseudo-profound bullshit. Week 4. Supplementary reading Karl Pearson (1897) On a Form of Spurious Correlation which may arise when Indices are used in the Measurement of Organs. Week 5. Week 6. Tools and tricks: Misleading axes Tools and tricks: Proportional Ink J.

untitled 中国科学院大学玉泉路校区,课程编号 B13009Y,共 60 课时。 本课程始于模形式的经典理论,进而介绍数论、几何及表示理论等方面的相关技术与应用,视角力求多元,以期学生对现代数学的面貌能得到概括的体会。 通过本课程教学,学生应达到以下基本要求:掌握模形式的基本定义与性质、以及著名的猜想和结果等,对相关领域获得宏观的了解,为进一步涉足算术几何、代数数论、自守表示理论等学科奠定基础。 教材以自编讲义为主: [讲义草稿] 中国科学院大学玉泉路校区,课程编号 B12001Y-01,共 80 课时。 学期总成绩计算公式©(按助教建议调整): 其中 分别代表期末,期中和平时成绩,结果四舍五入。 教材:柯斯特利金,《代数学引论(第三卷)基本结构》第二版,北京:高等教育出版社,2007年11月。 中国科学院大学玉泉路校区,课程编号 011M7021Y,共 20 课时。 本课程的目的是简介局部紧拓扑群或 Lie 群的表示理论,并演示具体例子。 [讲义] (粗稿,待修补) 中国科学院大学雁栖湖校区,课程编号 B13009H,共 60 课时。 中国科学院大学玉泉路校区,课程编号 011M4002Y,共 40 课时。 课程主题为交换代数。 N. 中国科学院大学玉泉路校区,课程编号 B12001Y,共 80 课时。 学期总成绩计算公式©: 其中 分别代表期末,期中和作业成绩。 “代数学”一词源于李善兰与伟烈亚力1859年的翻译,原指以符号取代数值,进行解方程、求和等运算的技艺,亦即“补足相消”之术,如今代数则泛指关于数学中一切形式结构和运算的研究,包括群、环、域、模乃至于范畴等等。 中国科学院大学中关村校区,课程编号 219044Z*,共 36 课时。 几何 Langlands 纲领是经典 Langlands 纲领在函数域上的类比。 中国科学院大学雁栖湖校区,课程编号 210002H,共 60 课时。 本课程是基础数学硕士生的代数系列课程之一,目的是为基础数学方向的研究生及其它需要较多代数知识的专业提供扎实的代数学基础。 [讲义] [期末参考解答] 中国科学院大学雁栖湖校区,课程编号 211003H,共 36 课时。 [期末参考解答]

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