DALLAS and ARLINGTON, April 23, 2020 — As emerging science around COVID-19 highlights elevated danger for people with diabetes, heart disease and stroke[1], the American Heart Association and the American Diabetes Association urge people living with type...

Botones para compartir de AddThis Compartir en Facebook Compartir en Twitter Compartir por correo electrónico Compartir para imprimir DALLAS y ARLINGTON, 23 de abril del 2020 — Debido a que la ciencia que emerge en torno al COVID-19...

“The Last Dance,” the Michael Jordan documentary on ESPN every Sunday night for five weeks got me thinking I’d like to talk about this. You can listen to Jordan talk and “The...

Perspective is a powerful tool in photography, and if you’re able to master it you’ll find that you’re able to snap far more interesting photos. It is a common misconception that you need special lenses to experiment with perspective, when in actual fact all you really need to do is move around. If you’re interested in using perspective in your photos, here are 3 easy tips that will help:   Get high, and get low  The easiest way to see perspective in action is by snapping photos from above and below eye-level. Try snapping a photo of a subject from the ground, then again from above it, and see how perspective makes a world of difference in the photos that you end up with. Play around with scale Because objects that are further away look smaller, you can reverse that effect and create some amusing photos. Often this is referred ... Read more

The post 3 Tips to Use Perspective in Photos appeared first on Digital Photography Tutorials.

Sentence level quality estimation (QE) for machine translation (MT) attempts to predict the translation edit rate (TER) cost of post-editing work required to correct MT output. We describe our view on sentence-level QE as dictated by several practical setups encountered in the industry. We find consumers of MT output---whether human or algorithmic ones---to be primarily interested in a binary quality metric: is the translated sentence adequate as-is or does it need post-editing? Motivated by this we propose a quality classification (QC) view on sentence-level QE whereby we focus on maximizing recall at precision above a given threshold. We demonstrate that, while classical QE regression models fare poorly on this task, they can be re-purposed by replacing the output regression layer with a binary classification one, achieving 50-60\% recall at 90\% precision. For a high-quality MT system producing 75-80\% correct translations, this promises a significant reduction in post-editing work indeed.

We provide a dynamical perspective on the classical problem of 3D point cloud registration with correspondences. A point cloud is considered as a rigid body consisting of particles. The problem of registering two point clouds is formulated as a dynamical system, where the dynamic model point cloud translates and rotates in a viscous environment towards the static scene point cloud, under forces and torques induced by virtual springs placed between each pair of corresponding points. We first show that the potential energy of the system recovers the objective function of the maximum likelihood estimation. We then adopt Lyapunov analysis, particularly the invariant set theorem, to analyze the rigid body dynamics and show that the system globally asymptotically tends towards the set of equilibrium points, where the globally optimal registration solution lies in. We conjecture that, besides the globally optimal equilibrium point, the system has either three or infinite "spurious" equilibrium points, and these spurious equilibria are all locally unstable. The case of three spurious equilibria corresponds to generic shape of the point cloud, while the case of infinite spurious equilibria happens when the point cloud exhibits symmetry. Therefore, simulating the dynamics with random perturbations guarantees to obtain the globally optimal registration solution. Numerical experiments support our analysis and conjecture.

We consider the problem of protecting and manipulating elections by recounting and changing ballots, respectively. Our setting involves a plurality-based election held across multiple districts, and the problem formulations are based on the model proposed recently by~[Elkind et al, IJCAI 2019]. It turns out that both of the manipulation and protection problems are NP-complete even in fairly simple settings. We study these problems from a parameterized perspective with the goal of establishing a more detailed complexity landscape. The parameters we consider include the number of voters, and the budgets of the attacker and the defender. While we observe fixed-parameter tractability when parameterizing by number of voters, our main contribution is a demonstration of parameterized hardness when working with the budgets of the attacker and the defender.

“You’ll be gone by spring,” said the same voice that drove me to retire. I was afraid this might be true, that I’d be dead by the time the weather warmed. Recent estate planning put death on my mind. I’ve heard enough about the frailty of old age, that it’d be all right by me to leave here with my faculties intact. You’ll be gone by spring. I couldn’t tell Bruce. Then came the snotty nose, my appetite gone, and sleep rising. While my pneumonia wasn’t COVID-19, I needed breathing treatments four times a day. Good doctors cared. I tell you there is healing beyond the science, in their touch, their listening. Then a dear friend said he might not survive this pandemic. An author wrote she was sick with COVID-19. You’ll be gone by spring. Was it Jesus’ voice or the voice, clanging like a train banging from one track to another, the cars jostling against their couplings, the voice of my life, maybe all our lives, rolling onto a siding while the pandemic roared by? Here on Good Friday we

“I never thought I would have to ask for food.” The young mother said as a box was placed in her car. In the last three weeks over 500,000 Illinois residents have filed for unemployment. We have never seen such a sudden, dramatic increase in the need for food in our region. There are now growing lines at area food pantries. Numbers of those seeking help has tripled. For 70% of them this is their first visit to a food pantry. This is occurring when food banks are receiving fewer donations from their sources. The food banks are dependent upon the donations from large food chains. Usually food whose shelf life has nearly expired, or produce that is about to go bad. Because nervous buyers have cleared out so many store shelves there is less leftover to donate. When you live at the bottom of the food chain and depend on leftovers, it is extra frightening when there is little left behind. We need to use this crisis to question our present food system built on dependence. We need to ask how

During tough times, my parents sing a song. It's sweet -- two real voices, not quite in tune, but full of energy. Whenever I complained, they’d break into song: You’ve got to accentuate the positive Eliminate the negative Latch on to the affirmative And don’t mess with Mr. In-Between! Listening, I often thought it’s old fashioned mumbo jumbo. It’s parent talk. Finally, I listened to Bing Crosby and the Andrews Sisters sing the whole song. The lyrics surprised me: You've got to spread joy up to the maximum Bring gloom down to the minimum Have faith or pandemonium’s Liable to walk upon the scene Sitting at home, while medical professionals work long hours, while so many small businesses struggle, we have a choice. We can accentuate the positive. But, it’s rosy skies and all smiles. Does it encompass our entire situation? Those who may be ill, who are alone, who may not be safe at home? Does it lack a realistic message for those whose lives are so far from simple hope? Since we can’t

The disaster movie starts and when bad things start to happen, a scientist always warns the people to change course. But the people never listen. That’s the gist of a mordant Facebook post circulating among scientists as they, along with the rest of us, have watched this frightening scenario play out in real life. The pandemic moved so fast and was so vicious that it’s no mystery why people insisted it couldn’t happen here. After all, we’re not Italy, or China. Scientists knew better, and in January, warned that it was going to happen here. Trump called them alarmist. In February, health experts were sure the virus had been lurking in communities for a while and was spreading fast. Precious weeks passed and the federal government failed to take charge. Against scientists’ advice, Trump urged those with the virus to take an untested drug. What have you got to lose, he said. In the meantime, governors scrambled to prepare hospitals, issue stay-at-home orders, and figure out testing. This

When unprecedented change happens, its repercussions seem to overpower anything worth smiling about in the world. But at the same time, with this huge change in society, comes the effort by so many to heal and reconnect, to positively respond to adversity in the best way we know how. This past week, my choir teacher reached out to our small choir group, one that had just recently been through the trauma of losing one of our own to a car crash. He spoke of the importance of connections and the realness that comes with being involved in a deeply connected group. He spoke of the power of music in sharing emotions, in bringing joy to even the most distraught. He then requested that each of us share a song that has been especially impactful during this unexpected extended quarantine. The shared clips were more than songs...they were deep feelings. Sadness, confusion, a small flutter of hope. With music we can see the raw emotions of our souls. We can see the small rays of sunshine that come

The COVID-19 pandemic is a situation most Americans alive today have not experienced. It’s challenged our American freedoms ranging from how we worship, work, educate, congregate, socialize, shop, vacation, and grieve. As a nation we take pride in our capitalistic economic system. Over the last several weeks we’ve witnessed 401K’s lose value, the stock market crash, along with historic joblessness and unemployment applications. I applaud both sides of the aisle for getting the stimulus package out, which includes the CARES act. But it’s not enough. The long-term effects of this pandemic will be far reaching. As states share their data on new cases and death related to COVID-19; the reality of American racism is being exposed again. According to the Surgeon General, African-Americans comprise 35.7% of confirmed cases and 53.2% of deaths despite only representing 27% of the US population. The US Census Bureau states the white population of Chicago, IL is 49%, and 30% African-American. As

In the midst of the COVID-19 pandemic, there is one unexpected silver lining that I just have to share. Teachers are finally getting some of the love and respect that they so sincerely deserve from parents who now have that role – at least temporarily. Praise for educators is all over social media right now, and even celebrities and sports stars are acknowledging how challenging it is to teach and how appreciative they are for their children’s teachers. Teachers of all levels – from preschool through college – have shifted their instruction online while also demonstrating their compassion and concern for their students. Teacher car parades are driving through neighborhoods with signs to remind children and families that their teachers care about and miss them. Teachers are calling students to show they care, and online class sessions are routinely beginning with “check-ins” to make sure everyone is OK. Has the shift to at-home learning been perfect? Absolutely not, but educators across

If you’re like me, you probably having a hard time changing the idea of social distancing into a habit. That’s not easy. Old habits die hard. Why don’t we wear a mask in public, wash our hands more often…or stay at least six feet apart? We each have our own reasons. Sometimes we just forget. I do. And some people just don’t understand the consequences if someone else is exposed to their cough; their hands or something they touched with the virus on it. Other people resist the whole idea of being told what to do. They think that social distancing imposes on their freedom. Or worse, they just can’t be bothered, no matter who they expose to the virus, even their loved ones. So here’s a thought -- Six Feet is Not That Far Away. Where I live in Princeton, Illinois, right off Interstate-80’s Exit 56, a group of us are asking “What does social distancing mean to us? We’re hoping that artists of all kinds will share their interpretations of that message in photographs, videos and music about

What does it take to govern a nation well? This question has risen to the top of my list of concerns during these challenging Covid-19 days. And yes, it has increased my level of anxiety about the future of our nation and its citizens. Like me, you’re probably experiencing nagging anxieties about staying safe. Will I find toilet paper rolls today? Am I protecting myself enough when I bring groceries into the house, or after handling the pump at the gas station? But a much broader and significant issue for me is leadership – leadership that secures the future of our well-being as individuals, families and a healthy nation. I know leadership theories and training can vary greatly, but I have found a common denominator of leadership excellence. I call it “Maturity of Self-hood.” It’s a leader who is secure as a person, who knows her strengths as well as what triggers negative reactions in her. It is someone who is passionate about new possibilities, but tempers this by listening to ideas

The COVID-19 pandemic has spurred efforts to control the spread of the virus through development of innovative digital contact tracing tools. In Singapore, Israel and India there is already an app for that. In Europe there’s debate between two competing frameworks, which have names that sound like Star Wars’ droids: PEPP-PT and DT-3T. And in the US, Apple and Google recently announced collaboration on a contact tracing feature that will eventually be integrated with updates to the mobile device operating system. Although providing promising solutions, these technologies are not without problems. First, the privacy protections for such systems need to be carefully scrutinized. The US currently does not have a general data protection law, like the EU's GDPR, that would permit government oversight and review of these contact tracing solutions. Second, contact tracing only works when a significant number of users opt-in and agree to use the technology. But there is no guarantee that

I clearly remember stories I heard as a kid from my older relatives about living through the Great Depression. The over-arching lesson I took from those accounts was this: unless you lived through it, you couldn’t truly understand what it was like. When I think of what life was like in the “Dirty 30s,” one image always comes to mind: Dorothea Lang’s “Migrant Mother,” taken in California in 1936 of Florence Thompson, a widow, with two of her seven kids huddled around her. Her look, complete with the 1,000-yard stare often associated with combat veterans, captures the quiet panic of a parent who cannot provide enough for her children. That look is also one of the fear and hopelessness of a victim of the economic system that betrayed her. She looked middle-aged 1936, but she was all of 32. As of April 24 th , close to 50,000 Americans have died from COVID-19, and 27 million have lost their jobs. On top of our catastrophe, we are sorely missing something Florence Thompson’s generation had:

“Come look!” announced my husband on an early spring morning over a month ago. “I have a surprise!” I followed him out to the backyard, and there rising up out of the cold brown earth, were a myriad of green stems with sheathed yellow flowers just beginning to make themselves known. “Two hundred daffodils!” my husband beamed brightly. “I planted them last fall in honor of our 50th wedding anniversary. Looks like they made it through the winter.” Although our 50th anniversary isn’t till June, we had scheduled a celebration trip to the island of Kauai in March, but as the frightening days of the corona virus quickly escalated, that trip was canceled. So many others have had to do the same, canceling weddings, spring breaks, graduations, and sadly, even funerals. So instead of sitting on a beach looking out at the blue Pacific as a rosy sun slid into the sea, we are sheltered at home looking out the windows to our leafless backyard. The bright spot, however, is that those 200 daffodils

Hey, all you cool cats and kittens! This is not Carol Baskin. It's Lynnea from Safe Passage. Have you hopped on the craze that is sweeping the nation? Have you fallen prey to the Tiger King? There's a lot of things to love in this series. The wacky hijinks of a gun-toting, sequin-wearing music video star and private zookeeper are just the ticket when you might be getting cabin fever in your home. But while we were all distracted by the complicated rivalry between Joe Exotic and The Big Cat Rescue, we missed a lot. Namely, we missed the abuse. For a documentary on private zoo owners, the unhappy and unsafe lives these animals were forced into was largely glossed over. Even more, the abuse the people faced hardly got a mention. Doc Antle was accused of building a coercive sexual relationship with the underage girls who came to work at his zoo. Joe Exotic was known to use drugs and gifts to lure and keep his husbands with him. Carol's history of being abused and assaulted starting at age

If you have ever skimmed a self-help book, you will be familiar with the current trend to plan ahead, strategize and focus. In a world where so much seems beyond our control, they advise we channel our efforts into well-defined goals. Unfortunately, such advice never seems to take into account the Enrique Solares approach to life. Enrique Solares was my husband's uncle and a gifted musician. When, in 1936, he was awarded a scholarship to study music in Belgium, his father threated to disinherit him. As a founder of a successful pharmaceutical company in Guatemala, Enrique's father was adamant that he abandon music and dedicate himself to the family firm. On the boat to Europe, he met a young Czech actress. Two days later the captain married them, so when he arrived in Brussels, he was not only disinherited and almost penniless, but he had a young wife in tow when Europe was on the cusp of World War II. As Viera would confess later: "most people would think we were foolish". And

As you listen to or read this essay, you will be celebrating the beginning of a brand-new month. But it is being written and recorded on another milestone -- the 50th anniversary of Earth Day. I was present for the very first one, as a student at the University of Illinois. Seminars, programs, speeches and leaflets urged the protection of our environment and an appreciation of the outdoors. For me, that appreciation would continue for a lifetime. This was the era of the "back to the land" movement and Mother Earth News. REI and Backpacker Magazine. Community cleanups and widespread tree planting. I would be fortunate enough to acquire a small hobby farm in Northern Wisconsin, if only for a few years. I often think about that property and can imagine in my mind how the land has changed, and how it hasn't. I will celebrate today not only by getting outdoors, but also by revisiting some of my favorite outdoor writers: Henry David Thoreau, Aldo Leopold, and Sigurd Olson. Their thoughts are

What day is it today? The woman on the other end of the phone asked, “How’s your day going?” “Oh, about the same as yesterday...” “Good one,” she says. At least I could inject a bit of humor. I don’t know about you, but for those of us quarantined at home, it seems as though every day is Sunday: one yawning day without very many milestones. I consider receiving the mail a major event. The governor’s daily address at 2:30 ish in the afternoon is another. At the beginning of this stay at home order I told myself that I would use noon as a cutoff: I had to be out of my pajamas by noon. Do I dare tell you that it is past 4:00 and I’m still in my nightgown? Let’s just say I’m getting in touch with my inner sloth. This order also breeds laziness. At one point I was counting out the number of underwear I had until I had to do laundry. What is wrong with me? I used to be a productive member of society: I read the newspaper daily. Now I collect the newspaper from the driveway every two days, I

Four weeks ago tonight, John Prine caught the April super moon and rode it to heaven. We knew he was sick with the virus and that his chances of recovery were slim, but it still hurt and it still does. I imagine he would have written some good tunes about our current state of being. As a “young man from a small town with a very large imagination,” he “made up songs,” along his postal route in the Chicago area. I can listen to his lyrics over and over and still get a rush of mixed emotions from his stories that are funny, absurd, devastating — and sometimes all in one song. John Prine introduced us to a colorful cast of characters: Lydia - “reading romance novels in her room,” while Donald was “envisioning romantic scenes” from the “barracks latrine,” and them “making love in their dreams.” Sam Stone returning from Vietnam with a “Purple Heart and a monkey on his back.” And the couple from “In Spite of Ourselves”- She “swears like a sailor when she shaves her legs,” and he “drinks his

With the onset of COVID-19, social media platforms show their virtues and vices once again. Millions are finding connection, entertainment, and solace, a lifeline of virtual community during a truly twisted time. Connection with friends is a blast, until someone begins posting conspiracy theories like big pharma, the World Health Organization, and the Centers for Disease Control are a cabal secretly making the world sick for profits, or opining on highly technical epidemiological research, calling into question both findings and researchers’ assumed unethical motives. COVID-19 is a new phenomenon and it takes time for researchers -- experts -- to understand it, and how to effectively and safely deal with it. Public questioning is important, but when a supermajority of experts form an informed opinion you don’t like, developing conspiracies is not a healthy path. Now, I truly believe in free speech. After all, I’m on radio. I’m just leery of the effect of unfettered, ill-informed

I love words. But sometimes this romance is a curse. I am not a word expert. But I should be. I read and write. A lot. Oh, and I’m a journalist. Words are my foundation — bricks for building stories. My touchstones for telling it as it is. And always, always my friends … for being there when I need them. But … I am not a word expert. I keep a dictionary nearby. If you’re in a newsroom you can just shout. “Help! Who knows the rule on lay vs. lie?” “No one!” someone shouts back. “Find a different word.” I use little tricks to remember proper spelling. I pronounce words wrong to get the spelling right. Like “paradigm.” I know how to pronounce it but instead tend to say pair-a-dig-em to make sure I spell it correctly. For years I stumbled over the word “facade.” I pronounced it “fay-kayed,” like it’s spelled. Silly me. I do get edgy when people abuse words. Perhaps I’m too sensitive. Like most married people, I announce my plans when leaving a room. Such as, “I’m taking my shower now.”

I’ve been watching a pair of yellow-bellied sapsuckers excavate a cavity in a dead white oak behind the shed. Since I’m home all the time, I can wander over and look at them whenever I feel like it, which is more often than you might expect. Sapsuckers, a kind of woodpecker, aren’t supposed to be here. They nest in northern Wisconsin, Minnesota, and Canada. In fact, according to the Wisconsin Breeding Bird Atlas, there has never been a confirmed nesting of yellow-bellied sapsuckers in my neck of Wisconsin. Yet here they are anyway, doing their thing in my dead oak. I guess they got lost and didn’t have a Bird Atlas. You can’t watch a woodpecker batter the trunk of a dead tree for very long without thinking about... brain trauma. I’m sure you’ve also wondered how woodpeckers sustain such head rattling without concussing themselves. My father-in-law used to say that woodpeckers could wrap their tongues around their brains to soften the blows. What an image! Without ever looking up, I

Bradley and Karen play a speech recording of Bradley's presentation at OSCON 2011, entitled 12 Years of FLOSS License Compliance: A Historical Perspective.

Show Notes:

Segment 0 (00:36)

• Bradley mentioned that time travel requires special verb tenses according to the Douglas Adams' book, The Restaurant at the End of the Universe. (01:48)
• Bradley gave a keynote at Ohio Linux Fest 2011 (01:58)

Segment 1 (05:02)

• This segment is a recording of Bradley's OSCON 2011 talk, entitled 12 Years of Copyleft License Compliance: A Historical Perspective. The slides are available on Bradley's website so you can follow along during the talk if you like.
• There is a live denting identi.ca thread from Bradley's talk. (03:50)
• Bradley wrote a blog post about a minor GPL violation in the Emacs codebase. It has since been fixed.
• RMS mentioned the NeXT/Objective C GPL violation in his essay, Copyleft: Pragmatic Idealism.

Segment 2 (52:35)

• Bradley will be speaking at the Google Summer of Code Mentor Summit 2011 and at LinuxCon Europe 2011. (55:05)

Send feedback and comments on the cast to <oggcast@faif.us>. You can keep in touch with Free as in Freedom on our IRC channel, #faif on irc.freenode.net, and by following Conservancy on on Twitter and and FaiF on Twitter.

Free as in Freedom is produced by Dan Lynch of danlynch.org. Theme music written and performed by Mike Tarantino with Charlie Paxson on drums.

The content of this audcast, and the accompanying show notes and music are licensed under the Creative Commons Attribution-Share-Alike 4.0 license (CC BY-SA 4.0).

From feeling scared to feeling resolved to see change, eight young people, ages 10 to 15, share how they're coping with the pandemic, in their own words.

From feeling scared to feeling resolved to see change, eight young people, ages 10 to 15, share how they're coping with the pandemic, in their own words.

Google Street View birding, embroidered computers, STEM and the Girl Guides, and using FortNite to teach about climate change

Mahatma Gandhi lived a life committed to social justice and human rights. In this year's lecture to honour his memory five Australian women talk about their work in indigenous communities, for people with disabilities, refugees , LGBTIQ and campaigns to reduce domestic violence.

A failure to look upward when parking by the river at a favourite roost for local pelicans has left a Port Macquarie man red-faced and his car disgraced.

B.J. Armstrong played on three NBA championship teams with Michael Jordan. He knows how Jordan is behind closed doors. He knows the sort of trials and tribulations that occur over the course of a season.

Richard Lawn has posted a new SETI Perspective entitled How did life begin on Earth and elsewhere?.

Kings fans gathered in L.A. to watch the team's Stadium Series game against the Colorado Avalanche. It's been rough lately but they recall better years.

The ways in which the game uses forced perspective and illusion to evoke the subconscious is thrilling.

Chen Weng was born in Wuhan and lives in Seattle. Both connections inspire her "Messycow Comics" strips about panic and hoarding.

Invitation Only Research Event

Event participants

Douglas E Lute, Ambassador, Permanent Representative for the United States to NATO
Sir Adam Thomson KCMG, UK Permanent Representative to NATO
Chair: Dr Robin Niblett, Director, Chatham House

Invitation Only Research Event

Invitation Only Research Event

Event participants

Niels Engelschiøn, Director-General, Department for European Affairs, Norwegian Ministry of Foreign Affairs
Chair: Dr Robin Niblett, Director; Chief Executive, Chatham House

4 March 2020 , Volume 96, Number 2

20 April 2020

Nuclear deterrence theory, with its roots in the Cold War era, may not account for all eventualities in the 21st century. Researchers at Chatham House have worked with eight experts to produce this collection of essays examining four contested themes in contemporary policymaking on deterrence.

Research Event

Event participants

Sumantra Bose, Professor of International and Comparative Politics, LSE; Author, Transforming India: Challenges to the World's Largest Democracy

Research Event

Event participants

Salih Muslim, Chairman, Democratic Union Party (PYD), Syria

4 March 2020 , Volume 96, Number 2