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Tag der Rückengesundheit unter dem Motto: "Sie haben es in der Hand - Rückenschmerzen bieten Chancen" am 15.03.2015

Gesundheitsberichterstattung - Sat, 2015-03-07 23:00
Ausgewählte Informationen zum Tag der Rückengesundheit unter dem Motto: "Sie haben es in der Hand - Rückenschmerzen bieten Chancen" am 15.03.2015
Categories: Science News

People are finally worrying about online privacy—and tech firms are already cashing in

OLDaily by Stephen Downes - Sat, 2015-03-07 02:56

Leo Mirani, Quartz, Mar 06, 2015

I've been posting more privacy-related items recently because, like the author of this piece, I think it's rising in importance. "The lure of customer data and opportunities to exploit it is a strong one. Indeed, invading privacy has been baked  into the very business model of the web in our present era." The current response by providers (like AT& T and Google) is to charge premium prices to avoid being tracked and hounded by advertisers. But of course, that still lets everyone else track you and hound you.

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How to Teach for Deeper Learning? An International Survey Provides Insights

OLDaily by Stephen Downes - Sat, 2015-03-07 02:56

Dion Burns, Education Week, Mar 06, 2015

This is another one of those articles that confuses between what the author wants you to conclude, and what the evidence says. The same problem is repeated throughout, but I'll focus on one example. Let's suppose that the survey data is correct, that " more than 94 percent of teachers agreed that their role was to facilitate students' own inquiry and 84 percent agreed that thinking and reasoning processes were more important than specific curriculum content." Then what are we to make of this? "Yet less than half of all teachers indicated they frequently used small group discussions in their classes." Instead of agreeing with the author that it's a shame so few teachers use this method, shouldn't we see this as an indictment of the small group discussion? Maybe small group discussions don't serve these aim at all, and that's  why teachers don't use them.

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Digital Learning Companies Falling Short of Student Privacy Pledge

OLDaily by Stephen Downes - Sat, 2015-03-07 02:56

Natasha Singer, New York Times | BITS Blog, Mar 06, 2015

I would like to say I hoped for some other result, but really, could we have expected anything different. There's far too much money to be made selling student data for any of them to worry about following some pledge nobody noticed anyways. “ Parents and educators who don’ t have the training to test for themselves wouldn’ t be able to tell which companies have reasonable security and which do not,” Mr. Porterfield said in a phone interview on Wednesday, “ and that makes it hard to trust the pledge.”

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The Effect of Achievement Badges on Students’ Behavior: An Empirical Study in a University-Level Computer Science Course

Online learning update by Ray Schroeder - Sat, 2015-03-07 01:10
by Lasse Hakulinen, Tapio Auvinen, Ari Korhonen, iJet Achievement badges are a form of gamification that are used in an attempt to increase user engagement and motivation in various systems. A badge is typically a graphical icon that appears as a reward for the user after reaching an achievement but that has no practical value. In this study, we describe and evaluate the use of achievement badges in the ANONYMOUS online learning environment where students solve interactive, automatically assessed exercises in a Data Structures and Algorithms course throughout the semester. We conducted an experiment where the students (N=281) were randomly divided into a treatment and a control group, with and without achievement badges. Students in the treatment group were awarded achievement badges, for example, for solving exercises on the first attempt, doing exercises early, or solving all the exercises in a round with full points. Grading was the same for both groups, i.e. collecting badges did not affect the final grade, even though the exercise points themselves did. Students’ activity in ANONYMOUS was logged in order to find out whether the achievement badges had an effect on their behavior. We also collected numerical and open-ended feedback in order to find out students’ attitudes towards the badges. Our results show that achievement badges can be used to affect students’ behavior. Statistically significant differences were observed in the time used per exercise, number of sessions, total time, and normalized total number of badges. Furthermore, the majority of the students reported being motivated by the badges. Based on our findings, achievement badges seem to be a promising method to motivate students and to encourage desired study practices. Share on Facebook var button = document.getElementById('facebook_share_link_13656') || document.getElementById('facebook_share_icon_13656') || document.getElementById('facebook_share_both_13656') || document.getElementById('facebook_share_button_13656'); if (button) { button.onclick = function(e) { var url = this.href.replace(/share\.php/, 'sharer.php');,'sharer','toolbar=0,status=0,width=626,height=436'); return false; } if ( === 'facebook_share_button_13656') { button.onmouseover = function(){'#fff'; = '#295582'; = '#3b5998'; } button.onmouseout = function(){ = '#3b5998'; = '#d8dfea'; = '#fff'; } } }

Engaging Students through Blogs: Using Blogs to Boost a Course Experience

Online learning update by Ray Schroeder - Sat, 2015-03-07 01:05
by Zuhrieh A Shana, Enas S Abulibdehb, iJet Globalization is irreversible and the Internet is increasingly used to connect people and share information worldwide. The proliferation of digital information allows us to make choices about how we gather information and use technology to enhance learning. This is especially true in an academic environment, where the Internet is often used as a tool to facilitate deeper learning. A combination of one hundred and ninety-nine graduate and undergraduate AAU students answered an online questionnaire exploring their perceptions of blogs as a learning tool. Quantitative and qualitative data was also collected through open-ended questionnaires, student journals and reports, and end-of-class e-portfolios. All statistical analyses were carried out with SPSS. Results indicate that blogs have the potential to empower and enhance student learning. Student response to using blogs in the course has been overwhelmingly positive.

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Prediction of Student Dropout in E-Learning Program Through the Use of Machine Learning Method

Online learning update by Ray Schroeder - Sat, 2015-03-07 01:02
by Mingjie Tan, Peiji Shao; iJET The high rate of dropout is a serious problem in E-learning program. Thus it has received extensive concern from the education administrators and researchers. Predicting the potential dropout students is a workable solution to prevent dropout. Based on the analysis of related literature, this study selected student’s personal characteristic and academic performance as input attributions. Prediction models were developed using Artificial Neural Network (ANN), Decision Tree (DT) and Bayesian Networks (BNs). A large sample of 62375 students was utilized in the procedures of model training and testing. The results of each model were presented in confusion matrix, and analyzed by calculating the rates of accuracy, precision, recall, and F-measure. The results suggested all of the three machine learning methods were effective in student dropout prediction, and DT presented a better performance. Finally, some suggestions were made for considerable future research. Share on Facebook var button = document.getElementById('facebook_share_link_13654') || document.getElementById('facebook_share_icon_13654') || document.getElementById('facebook_share_both_13654') || document.getElementById('facebook_share_button_13654'); if (button) { button.onclick = function(e) { var url = this.href.replace(/share\.php/, 'sharer.php');,'sharer','toolbar=0,status=0,width=626,height=436'); return false; } if ( === 'facebook_share_button_13654') { button.onmouseover = function(){'#fff'; = '#295582'; = '#3b5998'; } button.onmouseout = function(){ = '#3b5998'; = '#d8dfea'; = '#fff'; } } }

Vor 4 Milliarden Jahren: Junger Mars mit Ozean?

ScienceTicker.Info - Fri, 2015-03-06 11:39
Ein Ur-Ozean, größer als der Atlantik auf der Erde, könnte einst einen Teil der Mars-Oberfläche bedeckt haben. Das schließt eine internationale Forschergruppe aus Daten, die über einen Zeitraum von sechs Jahren aus der Planetenatmosphäre gewonnen wurden. Lesen Sie weiter bei Scienceticker Astro.
Categories: Science News

Social Homework Platform Aims to Boost Student Engagement

Online learning update by Ray Schroeder - Fri, 2015-03-06 01:10

By Dian Schaffhauser, Campus Technology

Three physics professors at California State University, Long Beach have developed a new software tool for their own classes, which they are now marketing more broadly through a start-up company. Koondis, as it’s called, works in traditional large introductory lecture classrooms, blended classes and fully online courses that often are filled with students enrolled from various disciplines who are required to be there for their majors. Described as a “social homework system,” a “discussion forum that puts students in small groups” and even a replacement for the campus learning management system, Koondis is showing great promise as a pill for student satisfaction.

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BYU-Idaho Supports Online Learning with Automated Video Transcoding

Online learning update by Ray Schroeder - Fri, 2015-03-06 01:04

By Leila Meyer, Campus Technology

BYU-Idaho currently offers four online associate degrees, 10 online bachelor’s degrees and more than 100 online courses, and it’s working to expand its online course offerings. Some faculty members are also using video-based tutorials, lectures and course materials to augment traditional face-to-face classes, and the campus is home to a large broadcasting facility. Professors create their own videos and send them to the university’s in-house video production facility to be converted to the required format for online viewing, and the large volume of videos was straining the capabilities of the facility.

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3 reasons online learning institutions fail

Online learning update by Ray Schroeder - Fri, 2015-03-06 01:02

by Steve Perry, eCampus News

This year (2015), working adult students, in particular, are turning to the Internet in pursuit of more cost-effective classes, certification programs and entire degrees in droves. However, while there are numerous proven benefits to an online education–such as flexible learning schedules, budget-friendliness and access to industry-leading curriculums–the industry is not without its challenges, as many online institutions face enrollment decline. Indeed, online educators face three key challenges in their journey toward mainstream industry and marketplace acceptance.

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Hard Reboot - Fri, 2015-03-06 01:00
Categories: Cartoons, Science News

Jenna Wortham

OLDaily by Stephen Downes - Thu, 2015-03-05 23:54

Om Malik,, Mar 05, 2015

Om Malik interviews Jenna Wortham. I wasn't sure I'd like it because I'm a bit indifferent to Malik (and the early name-dropping and depiction of his subject as "sassy" didn't help). But it's a good conversation and they go into some depth into what's happening at least in the U.S. version of the internet (I can't imagine "everyone has a bedroom just like mine" really being a global phenomenon). And there's a good glimpse of how a younger generation views a world in turmoil despite the promises of people like the editors at Wired, her former employer. "The bubble has popped. Not the tech bubble, but this idea that we live in this techno-utopian-post-racial world. That’ s deflating, and we’ re quickly realizing that yeah, the problems we face run a lot deeper and are going to be a lot harder to change." Jenna Wortham is a staff writer at The New York Times Magazine.


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Online Conference Presentation Resources

OLDaily by Stephen Downes - Thu, 2015-03-05 20:54

Karl Kapp, Kapp Notes, Mar 05, 2015

Oh I want to do something like this one day - I've listened to hundreds and hundreds of old time radio fiction over the last few years, I could probably do the genre - and it could be a great format for a presentation. Maybe I can round up some people like Jim Groom and do a proper radio broadcast. Karl Kapp offers his own version in this slide deck (which I actually read through end to end before realizing I was doing it) talking about games and gamification (and game elements...). Good stuff. Now, how does that go again? "Suddenly, a shot rang out...."

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Der schnellste Stern der Milchstraße

ScienceTicker.Info - Thu, 2015-03-05 20:00
Den schnellsten Stern der Galaxis haben deutsche Astronomen identifiziert. Der Raser bewegt sich mit erstaunlichen 4 Millionen Kilometern pro Stunde durch das All und wird seine Heimatgalaxie auf immer verlassen. Lesen Sie mehr bei Scienceticker Astro
Categories: Science News

Riyadh, Saudi Arabia

OLDaily by Stephen Downes - Thu, 2015-03-05 17:54

Mar 05, 2015

Photos from Riyadh, Saudi Arabia

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Identifying and Cultivating Student Leaders

OLDaily by Stephen Downes - Thu, 2015-03-05 17:54

Kylie Larson, Higher Ed Marketing Live, Mar 05, 2015

I spent pretty much the my entire university career as a 'student leader' first as a newspaper writer and editor during my undergraduate years, and next as a student association representative and president during my graduate years. I did not experience any "recruiting" efforts in my direction - quite the contrary, actually. I think this points to a difference between the relation between student associations and administrations in Canada and the US (outside North America I simply cannot say, but I imagine one or the other is common). Both student associations and student newspapers appear to be run as part of the university south of the border, while in Canad our associations and newspapers are fiercely independent of administration - so much so that I think it would be a scandal were it to be discovered that student leaders were being "recruited" by the administration. So I personally find this story a bit surprising and off-putting. Students don't need to have admnistrations recruit their leadership - they know who they are.

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New Hi-Tech Police Surveillance: The StingRay Cell Phone Spying Device

OLDaily by Stephen Downes - Thu, 2015-03-05 17:54

Clarence Walker, GlobalResearch, Mar 05, 2015

I'm not sure whether they cover this on U.S. networks but it's interesting to listed to a report on Al Jazeera about the 'Sting Ray' surveillance system originally designed for use against terrorists but not in increasingly wide day-to-day use by forces across the country. The system consists of radio towers that emulate cell phone towers an trick mobile devices into sending access information, data and other information. The judicial logic allowing use is that it is not actually surveillance. "The government did not install the tracking device — and the cell user chose to carry the phone that permitted transmission of its information to a carrier," Gorenstein held in that opinion. "Therefore no warrant is needed." The ACLU lists police departments using the system. Here's an EFF report from a couple weeks ago.

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Cathy N. Davidson Keynote Address at UNESCO X International Seminar

OLDaily by Stephen Downes - Thu, 2015-03-05 17:54

Cathy Davidson, Mar 05, 2015

Video from Cathy Davidson's talk "'Changing Higher Education from the Classroom Up' at the X International Seminar on 'Revisiting the Fundamentals of Traditional Curricula, R/Evolution: what “ R” Would Mean for Education.' The conference was sponsored by the UNESCO Chair in Education and Technology for Social Change and was held at the Universitat Oberta de Catalunya." I haven't reviewed the video but I've seen it referenced in a couple of places. I see Davidson as fairly conservative generally in her thinking but I'll be sure to review this one in the future to test my presumptions.

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xAPI, LRS – The Interview

OLDaily by Stephen Downes - Thu, 2015-03-05 17:54

Craig Weiss, E-Learning 24/7 Blog, Mar 05, 2015

I was fortunate enough to meet with and converse at length with  Craig Weiss while I was in Riyadh, so I thought I'd post a link to give people a sense of what he's about. He is, in short, a fountain of knowledge of learning management systems and related technologies. In this post he interviews Aaron Silvers (no slough himself) on the activity-recording specification called xAPI (aka Tin Can, aka the Experience API). Here is what it is supposed to do: "We want a system to be able to interpret, appropriately, consistently and reliably, the activity you performed and the context in which it was performed, no matter where it was recorded."

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