Alexa McDonough remembered for her dedication to social justice, blazing a trail for women | CBC News


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U.S. Health Care Spending Highest Among Developed Countries | Johns Hopkins Bloomberg School of Public Health

The United States, on a per capita basis, spends much more on health care than other developed countries; the chief reason is not greater health care utilization, but higher prices, according to a study from a team led by a JHSPH researcher.
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Hiltzik: The downside of copyrights – Los Angeles Times

‘Winnie-the-Pooh,’ ‘The Sun Also Rises’ and many other works entered the public domain on Saturday. They show what’s wrong with the system.
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Road Salt Is Wreaking Havoc On Our Drinking Water and the Environment

The good news? There are several interventions municipalities could use to stop the problem in its tracks.
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Contrary to popular belief, Twitter’s algorithm amplifies conservatives, not liberals: study |

Conservatives have long accused social media platforms of discriminating against them, but the opposite is true
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Shortest Path Distance Approximation Using Deep Learning: Node2Vec | by Asutosh Nayak | Towards Data Science

This article is an implementation of a research paper titled “Shortest Path Distance Approximation using Deep Learning Techniques”, where the authors explain a new method to approximate the shortest path distance between the nodes of a graph. I will explain the paper and my implementation of it. You can find the project on my GitHub account here. First I will give an overview of the method proposed in this paper, then we will go through some of the concepts used in this paper to solve the problem and finally the implementation.
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We compared students’ self-reported perception of learning with their actual learning under controlled conditions in large- enrollment introductory college physics courses taught using 1) active instruction (following best practices in the discipline) and 2) passive instruction (lectures by experienced and highly rated instructors). Both groups received identical class content and hand- outs, students were randomly assigned, and the instructor made no effort to persuade students of the benefit of either method. Students in active classrooms learned more (as would be expected based on prior research), but their perception of learning, while positive, was lower than that of their peers in passive environ- ments. This suggests that attempts to evaluate instruction based on students’ perceptions of learning could inadvertently promote inferior (passive) pedagogical methods. For instance, a superstar lecturer could create such a positive feeling of learning that stu- dents would choose those lectures over active learning. Most im- portantly, these results suggest that when students experience the increased cognitive effort associated with active learning, they initially take that effort to signify poorer learning. That disconnect may have a detrimental effect on students’ motivation, engage- ment, and ability to self-regulate their own learning. Although students can, on their own, discover the increased value of being actively engaged during a semester-long course, their learning may be impaired during the initial part of the course. We discuss strategies that instructors can use, early in the semester, to improve students’ response to being actively engaged in the classroom.

Liking/Learning gap

An example of the liking-learning gap: what students like is not what they learn from.

Students like graphics on slides, but seductive graphics (interesting but not relevant) hurt long-term recall in online courses, while more boring instructive, directly relevant graphics help.

The Low-and-Slow Approach to Food Safety Reform Keeps Going Up in Smoke — ProPublica

The U.S. has one agency that regulates cheese pizza and another that oversees pepperoni pizza. Efforts to fix the food safety system have stalled again and again.
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