2016-11-10

3D-printed heart-on-a-chip with integrated sensors


source: Harvard University    2016年10月24日
Harvard University researchers have made the first entirely 3D-printed organ-on-a-chip with integrated sensing. Built by a fully automated, digital manufacturing procedure, the 3D-printed heart-on-a-chip can be quickly fabricated and customized, allowing researchers to easily collect reliable data for short-term and long-term studies.

The Spiritist Religions of Brazil with Stanley Krippner


source: New Thinking Allowed   2016年10月10日
Stanley Krippner, Ph.D., professor of psychology at Saybrook University, is a Fellow in four APA divisions, and past-president of two divisions (30 and 32). Formerly, he was director of the Maimonides Medical Center Dream Research Laboratory, in Brooklyn NY. He is co-author of Dream Telepathy, Extraordinary Dreams and How to Work with Them, The Mythic Path, and Haunted by Combat: Understanding PTSD in War Veterans, and co-editor of Debating Psychic Experience: Human Potential or Human Illusion, Healing Tales, Healing Stories, Varieties of Anomalous Experience: Examining the Scientific Evidence, Advances in Parapsychological Research and many other books. He is a Fellow of the Society for the Scientific Study of Religion, and has published cross-cultural studies on spiritual content in dreams.
Here Stanley Krippner discusses the three main spiritist religions of Brazil: Candomblé, Umbanda, and Kardecismo. Candomblé and Umbanda are, essentially, variations of the African Yoruba tradition. The African slaves in Brazil incorporated Catholic Saints into their religion in order to disguise the fact that they were still worshipping the deities of their homeland. The Kardecismo tradition was imported from Europe, based on the spiritist writings of the French pedagogue, Allan Kardec. Krippner describes his own research with spiritist mediums of these traditions, pointing out that when they incorporated spiritual entities measurable changes occurred in their physiology.

New Thinking Allowed host, Jeffrey Mishlove, PhD, is author of The Roots of Consciousness, Psi Development Systems, and The PK Man. Between 1986 and 2002 he hosted and co-produced the original Thinking Allowed public television series. He is the recipient of the only doctoral diploma in "parapsychology" ever awarded by an accredited university (University of California, Berkeley, 1980). He is also past-president of the non-profit Intuition Network, an organization dedicated to creating a world in which all people are encouraged to cultivate and apply their inner, intuitive abilities.
(Recorded on May 14, 2016)

探索16-2講座:封神榜裡面的角色是怎麼來的?---談人類先天性缺損(human birth defects)--謝豐舟教授


source: 臺大科學教育發展中心    2016年11月8日
封神榜中的角色,長得奇形怪狀,作者的靈感從何而來?我想有可能是,根據從古至今人類所看到的先天性缺損病患的長相,發想而來。童話中的獨眼巨人,很可能是第13號染色體的異常(Trisomy 13),而泰國的四面佛可能是發想自連體嬰。
本系列的主題是:「發育的奧秘」。發育是細胞形成組織,再形成器官,眾多器官集合成一個生物。每個生物,每個器官,都有其固定的大小,形狀,構造。重點是大小,形狀,構造要正常,才會有正常的功能。這個過程就是「發育」。就像水泥,磚塊,沙石,木材一定要形成牆壁,屋頂,門窗,最後成為一間可以居住的房子,否則水泥,沙石,磚塊,木材不會有居住的功用。生物學裡面最深奧的,不是癌症學,就是如何形成構造旳「發育生物學」了。
發育過程若出錯,生物的結構,形狀,大小,功能,就出現異常,在人類,就是「先天性缺損」。在新生兒約有3%會有主要的先天性缺損,如果包含比較輕微的先天性缺損,則可達14%。其原因包括,染色體異常,單基因異常,而以多因素異常居大宗,也就是基因和環境交互作用所致。
目前,由於產前診斷科技的發展和普及,許多先天性缺損在產前就可發現。原則上若是出生後可以治療的,可在出生後給予適當的治療,若是不能治療的,可以選擇中止姙娠。
本講將介紹台灣的先天性缺損狀況及產前診斷的發展。
講座時間:2016年10月15日(六) 14:00
講座地點:臺灣大學思亮館國際會議廳(同步網路直播)
活動官網:http://case.ntu.edu.tw/ex/embryos/
粉絲專頁:https://www.facebook.com/CASExplores

Ole Christensen: DTU: Mathematics 4 Real Analysis (Denmark Technical University)

# click the up-left corner to select videos from the playlist 

source: DTUbroadcast    2013年2月6日
01325: Mathematics 4 Real Analysis
Class materials at Denmark Technical University: http://www2.mat.dtu.dk/education/01325/

Normed Vector Spaces Part 1 51:54
Normed Vector Spaces Part 2 51:38
Banach Spaces part 1 48:52
Banach Spaces part 2 52:21
Hilbert Spaces part 1 50:18
Hilbert Spaces part 2 55:55
Adjoint Operator Part 1 43:08
Adjoint Operator Part 2 54:35
Lp Spaces on the real line 50:59
Lp Spaces On The Real Line part 2 50:49
More On Lp And L2 Spaces Part 1 48:00
More On Lp And L2 Spaces Part 2 55:37
More On Operators On L2 Part 1 52:34
Orthonormal Bases Vs Fourier Series Part 2 46:37
Approximation Theory Part 1 48:32
Approximation Theory Part 2 53:28
The Fourier Transform Part 1 47:42
The Fourier Transform Part 2 50:20
Fourier Transform And Wavelets Part 1 47:32
The Fourier Transform And Wavelets Part 2 51:09
Wavelets And Multiresolution Analysis Part 1 51:54
Wavelets And Multiresolution Analysis Part 2 54:10
Wavelets And B-Splines Part 1 43:50
Wavelets And B-Splines Part 2 59:57
Special Functions And Diff. Equation Course Evaluation 1:16:49

Are preservatives bad for you? - Eleanor Nelsen


source: TED-Ed     2016年11月8日
View full lesson: http://ed.ted.com/lessons/are-preserv...
Food doesn’t last. In days, sometimes hours, bread goes moldy, apple slices turn brown, and bacteria multiply in mayonnaise. But you can find all of these foods out on the shelf at the grocery store — hopefully unspoiled -- thanks to preservatives. But what exactly are preservatives? How do they help keep food edible? And are they safe? Eleanor Nelsen investigates.
Lesson by Eleanor Nelsen, animation by Compote Collective.

迴歸分析--黃冠華 / 交大

# 播放清單 (請按影片右上角選取影片觀看)

source: NCTU OCW   2016年10月27日
The goals of this course are to introduce regression analysis for continuous and discrete data. Topics include simple and multiple linear regressions, inferences for regression coefficients, confounding and interaction, regression diagnostics, logistic regressions, Poisson regressions, and generalized linear models.
The course consists of lectures and laboratory sessions. The lectures are given on Tuesday 9:00-11:00. The lectures will primarily review and reinforce major issues. There is a laboratory session on Tuesday 11:10-12:00. The laboratory exercise will be distributed prior to each class, and students are expected to read each lab exercise at home. Each student will be assigned to a lab group and discuss the exercise with group members in the lab. At the end of the lab, there will be a seminar-type discussion. Each group is required to hand in a write-up of laboratory problems.
The course uses the R software for statistical computing. Students are expected to be familiar with the usage of the software.
本課程是由交通大學統計學研究所提供。
課程資訊:http://ocw.nctu.edu.tw/course_detail....
更多課程歡迎瀏覽交大開放式課程網站:http://ocw.nctu.edu.tw/

Lec 01 Introduction 10:10
Lec 02 A review of basic statistical concepts 57:23
Lec 03 Measures of association with emphasis on the difference of means 25:24
Lec 04 Basics of linear regression analysis 2:02:21
Lec 05 同學報告 10:13
Lec 06 Correlation 1:04:49
Lec 07 同學報告 14:05
Lec 08 Analysis of variance (ANOVA) table and prediction of y 48:40
Lec 09 Basics of multiple linear regression 45:40
Lec 10 同學報告 12:16
Lec 11 Hypothesis testing in multiple regression 50:06
Lec 12 Polynomial terms and dummy variables 46:43
Lec 13 同學報告 16:47
Lec 14 Interaction and confounding 54:10
Lec 15 補充: Confounding and interaction in epidemiology 45:14
Lec 16 同學報告 18:29
Lec 17 Regression diagnosis 1:23:04
Lec 18 Variable selection and model building 54:31
Lec 19 同學報告 7:00
Lec 20 同學報告 13:43
Lec 21 Relative risk, odds ratio and significance testing for 2*2 tables 1:43:34
Lec 22 Introduction to logistic regression 1:05:54
Lec 23 同學報告 22:51
Lec 24 Logistic regression for contingency tables 47:54
Lec 25 Goodness-of-t for logistic regression 45:55
Lec 26 同學報告 12:01
Lec 27 Logistic regression for case-control data and conditional logistic regression 1:10:09
Lec 28 同學報告 8:55
Lec 29 Analysis of polytomous data 1:06:00
Lec 30 同學報告 5:18
Lec 31 Poisson regression and log-linear model 1:13:54
Lec 32 同學報告 17:08
Lec 33 Generalized linear models 42:05
Lec 34 同學報告 10:54

Invisible Man Got the Whole World Watching: A Round Table with Mychal Denzel Smith


source: The New School    2016年9月22日
Join Nation Institute Knobler fellow and New York Times bestseller Mychal Denzel Smith at The New School (http://www.newschool.edu) for a panel discussion on the themes of his new book: How do you learn to be a black man in America? This is the question at the heart of the Nation writer’s celebrated new memoir, Invisible Man, Got the Whole World Watching: A Young Black Man's Education.
​With power and poignancy, Smith chronicles his own personal and political education in America​, describing his efforts to come into his own in a world that has denied his humanity. Smith will moderate a roundtable discussion of the book's themes with activists Alexis Coe, Tatyana Fazlalizadeh, and Rembert Browne.
This event is co-sponsored by The Nation Institute, Nation Books, and The New School.
Location: The Auditorium, Alvin Johnson/J.M. Kaplan Hall
Wednesday, September 21, 2016 at 7:00 pm to 9:00 pm

Dacher Keltner: "The Power Paradox: The Promise and Peril of 21st Century Power" | Talks at Google


source: Talks at Google     2016年10月14日
For the past 20 years Dacher Keltner has studied human emotion, power, and the structure of human social life. Building upon hundreds of scientific findings, his work as a scientific consultant on Pixar's film "Inside Out", and work to improve the criminal justice system, this talk will detail five basic principles about human power that he captures in his new book, "The Power Paradox: How We Gain and Lose Influence." These ideas will answer timeless questions such as how we get power and why it so often unleashes sociopathic tendencies, and how power is dramatically changing in this 21st century (thanks in part to entities like Google). He will point to a future of more positive power, and ways to remedy the ills of power, such as inequality.

Ethan Hawke: Access Your Subconscious to Achieve Creativity


source: Big Think    2016年10月11日
We all know the actor Ethan Hawke, star of films like Gattaca, Dead Poet’s Society, and Training Day, but have you met director, screenwriter, novelist, and philanthropist Ethan Hawke? With an energy that can’t be hushed and a curiosity that won’t quit, Hawke is a creative tornado. Hawke's latest book is "Indeh: A Story of the Apache Wars" (http://goo.gl/JlE7qc).
Read more at BigThink.com: http://bigthink.com/videos/ethan-hawk...

Transcript - When I first started trying to write – because I came on writing as an actor and you realize very quickly that there’s a big difference between being ambiguous and being vague. And being vague is out of focus, blurry, oh yeah everything’s kind of true. In being ambiguous is a little bit more than a Zen comb, you know, you’re ringing a bell towards a larger truth. And you’re guiding an audience to think for themselves rather than dictating an answer. That to me is ambiguity at its finest. For example when I worked on Boyhood with Richard Linklater there was a large component and I have no other word for it than what I’ve read about in jazz. The beauty of jazz music is that there’s no plan. There’s a plan. There’s an architecture. Let’s take something obvious like my favorite things, right. John Coltrane’s My Favorite Things. If people know one jazz thing often they’ll know that one. And he takes this famous song, da, da, da, da, da, right. And they all start riffing on it and the musicians start riffing on it and they find a new melody inside it.
And it changes and it changes. And then mysteriously comes back around again and spontaneity mixed with discipline and intelligence it evolves into something you cannot plan that is more sophisticated and more interesting than something the intellectual mind can plan. When you’re really being creative at your best you’ve used your discipline to open up your subconscious. You know, Bob Dylan has a great quote where he says, you know, I didn’t write that man. When somebody says you don’t have an idea for a song. Mama’s in the basement mixing up medicine. I’m on the pavement – that’s not like oh I got an idea for a song. Let me write the Subterranean Homesick Blues, right. It doesn’t work like that. It works like you’ve got something to say and then it’s an antenna that goes up, right. And some people I think mistakenly think somebody is channeling God or something like that. Read Full Transcript Here:https://goo.gl/SYgeBr.

Myths of The American Mind: Smartness by Wesley Cecil


source: Wes Cecil    2014年9月28日
The first lecture in my new series: "Myths of the Modern American Mind." This lecture explores the origins, development and influence of commonly held, but often factually suspect, American beliefs. This lecture was delivered at Peninsula College by Wesley Cecil, PhD.
For more information: https://www.facebook.com/HumaneArts

An Introduction to American Pragmatism


source: Philosophical Overdose    2015年10月7日
According to William James, the pragmatist "turns away from abstraction and insufficiency, from verbal solutions, from bad a priori reasons, from fixed principles, closed systems, and pretended absolutes and origins. He turns towards concreteness and adequacy, towards facts, towards action and towards power". William James, along with Charles Sanders Peirce and John Dewey, were the founders of the American philosophical movement which flowered during the last thirty years of the nineteenth century and the first twenty years of the 20th century. It took knowledge to be meaningful only when coupled with action. The function of thought was taken not to represent or "mirror" the world, but instead was considered an instrument or tool for prediction, problem-solving, and action. The pragmatists believed that most philosophical topics---such as the nature of knowledge, language, meaning, belief, and science--are best viewed in terms of their practical use and successes. In this way, it was a philosophy deeply embedded in the reality of life, concerned firstly with the individual's direct experience of the world they inhabit.
How did pragmatism harness the huge scientific leap forward that had come with Charles Darwin's ideas on evolution? And how did this dynamic new philosophy challenge the doubts expressed by the skeptics about the nature and extent of knowledge? Did pragmatism influence the economic and political ascendancy of America in the early 20th century? And how does it relate to relativism and post-modernism? Melvyn Bragg discusses some of these questions regarding pragmatism with A. C. Grayling, Julian Baggini, and Miranda Fricker.
This is from the BBC radio program "In Our Time". For a more in-depth discussion of pragmatism, check out: https://www.youtube.com/watch?v=jjNyp...

Harish Hirani: Tribology (IIT Delhi)

# click the up-left corner to select videos from the playlist

source: nptelhrd     2012年11月11日
Mechanical - Tribology by Dr. Harish Hirani, Department of Mechanical Engineering, IIT Delhi. For more details on NPTEL visit http://nptel.iitm.ac.in

01 Introduction 45:23
02 Interdisciplinary Approach and Economic Benefits 53:53
03 Friction 56:16
04 Friction Estimation 53:11
05 Friction Instability 43:36
06 Wear 55:46
07 Adhesive Wear 57:40
08 Wear Mechanisms 57:59
09 Wear Mechanisms -- 2 54:43
10 Wear Analysis 55:16
11 Lubrication and Lubricants 56:43
12 Boundary Lubrication 53:46
13 Lubrication Mechanisms 58:28
14 Hydrodynamic Lubrication 55:12
15 Lubricant Classifications 55:22
16 Solid and Semi Solid Lubricants 58:00
17 Liquid Lubricants 57:54
18 Lubricant Additives 59:35
19 Fluid Film Lubrication 57:44
20 Reynolds Equation 53:54
21 Solution of Reynolds Equation 52:02
22 Hybrid Solution Approach (to solve Reynolds Equation) 50:12
23 Finite Difference Method to Solve Reynolds Equation 47:10
24 Viscosity Variation 50:58
25 Estimating Elastic Deformation 55:39
26 Thermo Hydrodynamic Lubrication 1:00:27
27 Application of Tribology 52:03
28 Rolling Element Bearings 58:29
29 Rolling Element Bearings (contd) 54:30
30 Rolling Element Bearings (contd)... 57:05
31 Selection of Rolling Element Bearings 55:46
32 Friction of Rolling Element Bearing 54:38
33 Bearing Clearance 55:12
34 Bearing Lubrication 58:46
35 Tribology of Gears 56:54
36 Friction and Lubrication of Gears 54:36
37 Friction and Lubrication of Gears (contd) 56:37
38 Surface Fatigue of Spur Gears 58:24
39 Journal Bearings 54:36
40 Hydrostatic Bearings 55:42
41 Hydrodynamic Journal Bearings 55:48
42 Design of Hydrodynamic Journal Bearings 51:20

V. Sundar: Coastal Engineering (IIT Madras)

# click the up-left corner to select videos from the playlist

source: nptelhrd     2013年5月2日
Ocean - Coastal Engineering by Prof. V. Sundar, Department of Ocean Engineering, IIT Madras. For more details on NPTEL visit http://nptel.iitm.ac.in

01 Wave deformation - I 46:05
02 Wave deformation - II 49:03
03 wave deformation (problems - I) 38:06
04 wave deformation (problems - II) 45:39
05 wave deformation (problems - III) 41:38
06 Sediment characteristics - I 48:18
07 Sediment characteristics - II 34:23
08 Radiation stresses - I 46:29
09 Radiation stresses - II 47:27
10 Longshore sediment transport - I 49:35
11 Longshore sediment transport - II 44:23
12 Longshore sediment transport (problems - I) 46:03
13 Longshore sediment transport (problems -II) 40:54
14 Coastal erosion protection measures - I 43:19
15 Coastal erosion protection measures - II 46:18
16 Coastal erosion protection measures - III 46:57
17 Coastal erosion protection measures - IV 47:20
18 Coastal erosion protection measures - V 55:31
19 Coastal erosion protection measures - VI 38:54
20 Coastal erosion protection measures - VII 39:35
21 Coastal erosion protection measures - VIII 49:41
22 Coastal erosion protection measures - IX 49:52
23 Coastal erosion protection measures - X 48:00
24 Cheaper CEP methods - XI 24:05
25 Geosynthetics - I 1:28:11
26 Geosynthetics - II 38:30
27 Breakwaters - I 50:25
28 Breakwaters - II 46:31
29 Breakwaters - III 49:14
30 Breakwaters - IV 29:25
31 Forces on coastal structures - I 47:26
32 Forces on coastal structures - II 35:30
33 Scour under marine structures 1:13:58
34 Physical modelling of coastal structures - I 48:26
35 Physical modelling of coastal structures - II 38:05
36 Tsunami - I 47:50
37 Tsunami -II 48:40

Srinivasan Chandrasekaran: Dynamics of Ocean Structures (IIT Madras)

# click the up-left corner to select videos from the playlist

source: nptelhrd     2013年5月22日
Ocean - Dynamics of Ocean Structures by Dr. Srinivasan Chandrasekaran, Department of Ocean Engineering, IIT Madras. For more details on NPTEL visit http://nptel.iitm.ac.in

Mod-01 Lec-01 Introduction to different types of ocean structures I 47:46
Mod-01 Lec-02 Introduction to different types of ocean structures II 47:52
Mod-01 Lec-03 Introduction to different types of ocean structures III 46:19
Mod-01 Lec-04 Types of Compliant towers 51:10
Mod-01 Lec-05 New Generation offshore and Coastal structures 56:29
Mod-01 Lec-06 Environmental forces 49:33
Mod-01 Lec-07 Wave forces, Current 51:00
Mod-01 Lec-08 Introduction to Structural dynamics 48:58
Mod-01 Lec-09 Characteristics of single degree - of- freedom model 40:48
Mod-01 Lec-10 Methods of writing equation of motion 50:25
Mod-01 Lec-11 Free and forced vibration of single degree - of - freedom systems 47:27
Mod-01 Lec-12 Undamped and damped systems I 44:07
Mod-01 Lec-13 Undamped and damped systems II 48:38
Mod-01 Lec-14 Undamped and damped systems III 51:14
Mod-01 Lec-15 Comparison of methods 54:30
Mod-01 Lec-16 Examples 44:51
Mod-01 Lec-17 Numerical problems in single degree - of - freedom systems 51:14
Mod-01 Lec-18 Two degrees - of - freedom systems 44:23
Mod-01 Lec-19 Eigenvalues and Eigenvectors 49:15
Mod-01 Lec-20 Orthogonality of modes 48:23
Mod-01 Lec-21 Study of Multi degrees - of - freedom systems 43:12
Mod-01 Lec-22 Equations of motion 50:18
Mod-01 Lec-23 Natural frequencies and mode shapes 53:04
Mod-01 Lec-24 Stodla, Rayleigh - Ritz and influence coefficient methods, Dunkerley 53:23
Mod-01 Lec-25 Continuous system 52:53
Mod-02 Lec-01 Structural action of offshore structures 51:01
Mod-02 Lec-02 Fluid - Structure interaction I 56:47
Mod-02 Lec-03 Fluid - Structure interaction II Dynamic analysis of offshore jacket platforms 51:02
Mod-02 Lec-04 Steps of analysis using software 43:34
Mod-02 Lec-05 Steps of analysis using software (contd..) 52:40
Mod-02 Lec-06 Dynamic analysis of articulated towers 50:46
Mod-02 Lec-07 Iterative frequency domain I 49:27
Mod-02 Lec-08 Iterative frequency domain II 55:33
Mod-02 Lec-09 Multi - legged articulated towers 53:11
Mod-02 Lec-10 Response control of multi-legged articulated towers using tuned mass 35:28
Mod-02 Lec-11 Development of Tension Leg Platforms and geometric optimization 54:01
Mod-02 Lec-12 Dynamic analyses of TLPs 58:19
Mod-02 Lec-13 Development of Mass, stiffness and damping matrices of TLP from first principles 51:17
Mod-02 Lec-14 Estimate of classical damping 54:32
Mod-02 Lec-15 TLPs under seismic excitation 50:28
Mod-02 Lec-16 Direct Integration method 57:25
Mod-02 Lec-17 Development of new generation offshore structures 43:32
Mod-03 Lec-01 Introduction to stochastic dynamics of ocean structures 53:11
Mod-03 Lec-02 Response spectrum 54:47
Mod-03 Lec-03 Narrow band process 50:42
Mod-03 Lec-04 Return period, Fatigue prediction 56:15
Mod-03 Lec-05 Modal response method, Modal mass contribution 50:48
Mod-03 Lec-06 Missing mass correction, Example problems 56:33
Mod-03 Lec-07 Duhamel's integrals 50:32