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Javier E

NASA finds new life form - 0 views

www.wired.com/...nasa-finds-new-life

science life nasa origins chemistry biology arsenic

shared by Javier E on 03 Dec 10 - No Cached
  • NASA has found a bacteria whose DNA is completely alien to what we know today. Instead of using phosphorus, the bacteria uses arsenic. All life on Earth is made of six components: carbon, hydrogen, nitrogen, oxygen, phosphorus and sulfur.
  • The implications of this discovery are enormous to our understanding of life itself and the possibility of finding beings in other planets that don’t have to be like planet Earth.
Javier E

Wine-tasting: it's junk science | Life and style | The Observer - 0 views

www.guardian.co.uk/...-tasting-junk-science-analysis

taste sense perception research

shared by Javier E on 03 Jul 13 - No Cached
  • google_ad_client = 'ca-guardian_js'; google_ad_channel = 'lifeandstyle'; google_max_num_ads = '3'; // Comments Click here to join the discussion. We can't load the discussion on guardian.co.uk because you don't have JavaScript enabled. if (!!window.postMessage) { jQuery.getScript('http://discussion.guardian.co.uk/embed.js') } else { jQuery('#d2-root').removeClass('hd').html( '' + 'Comments' + 'Click here to join the discussion.We can\'t load the ' + 'discussion on guardian.co.uk ' + 'because your web browser does not support all the features that we ' + 'need. If you cannot upgrade your browser to a newer version, you can ' + 'access the discussion ' + 'here.' ); } Wor
  • Hodgson approached the organisers of the California State Fair wine competition, the oldest contest of its kind in North America, and proposed an experiment for their annual June tasting sessions.Each panel of four judges would be presented with their usual "flight" of samples to sniff, sip and slurp. But some wines would be presented to the panel three times, poured from the same bottle each time. The results would be compiled and analysed to see whether wine testing really is scientific.
  • Results from the first four years of the experiment, published in the Journal of Wine Economics, showed a typical judge's scores varied by plus or minus four points over the three blind tastings. A wine deemed to be a good 90 would be rated as an acceptable 86 by the same judge minutes later and then an excellent 94.
  • ...9 more annotations...
  • Hodgson's findings have stunned the wine industry. Over the years he has shown again and again that even trained, professional palates are terrible at judging wine."The results are disturbing," says Hodgson from the Fieldbrook Winery in Humboldt County, described by its owner as a rural paradise. "Only about 10% of judges are consistent and those judges who were consistent one year were ordinary the next year."Chance has a great deal to do with the awards that wines win."
  • French academic Frédéric Brochet tested the effect of labels in 2001. He presented the same Bordeaux superior wine to 57 volunteers a week apart and in two different bottles – one for a table wine, the other for a grand cru.The tasters were fooled.When tasting a supposedly superior wine, their language was more positive – describing it as complex, balanced, long and woody. When the same wine was presented as plonk, the critics were more likely to use negatives such as weak, light and flat.
  • In 2011 Professor Richard Wiseman, a psychologist (and former professional magician) at Hertfordshire University invited 578 people to comment on a range of red and white wines, varying from £3.49 for a claret to £30 for champagne, and tasted blind.People could tell the difference between wines under £5 and those above £10 only 53% of the time for whites and only 47% of the time for reds. Overall they would have been just as a successful flipping a coin to guess.
  • why are ordinary drinkers and the experts so poor at tasting blind? Part of the answer lies in the sheer complexity of wine.For a drink made by fermenting fruit juice, wine is a remarkably sophisticated chemical cocktail. Dr Bryce Rankine, an Australian wine scientist, identified 27 distinct organic acids in wine, 23 varieties of alcohol in addition to the common ethanol, more than 80 esters and aldehydes, 16 sugars, plus a long list of assorted vitamins and minerals that wouldn't look out of place on the ingredients list of a cereal pack. There are even harmless traces of lead and arsenic that come from the soil.
  • "People underestimate how clever the olfactory system is at detecting aromas and our brain is at interpreting them," says Hutchinson."The olfactory system has the complexity in terms of its protein receptors to detect all the different aromas, but the brain response isn't always up to it. But I'm a believer that everyone has the same equipment and it comes down to learning how to interpret it." Within eight tastings, most people can learn to detect and name a reasonable range of aromas in wine
  • People struggle with assessing wine because the brain's interpretation of aroma and bouquet is based on far more than the chemicals found in the drink. Temperature plays a big part. Volatiles in wine are more active when wine is warmer. Serve a New World chardonnay too cold and you'll only taste the overpowering oak. Serve a red too warm and the heady boozy qualities will be overpowering.
  • Colour affects our perceptions too. In 2001 Frédérick Brochet of the University of Bordeaux asked 54 wine experts to test two glasses of wine – one red, one white. Using the typical language of tasters, the panel described the red as "jammy' and commented on its crushed red fruit.The critics failed to spot that both wines were from the same bottle. The only difference was that one had been coloured red with a flavourless dye
  • Other environmental factors play a role. A judge's palate is affected by what she or he had earlier, the time of day, their tiredness, their health – even the weather.
  • Robert Hodgson is determined to improve the quality of judging. He has developed a test that will determine whether a judge's assessment of a blind-tasted glass in a medal competition is better than chance. The research will be presented at a conference in Cape Town this year. But the early findings are not promising."So far I've yet to find someone who passes," he says.
sissij

A Beginners Guide To Parkinson's Law: How To Do More Stuff By Giving Yourself... - 1 views

impossiblehq.com/parkinsons-law

Parkinson's law psychology brain science

shared by sissij on 18 Nov 16 - No Cached
  • Parkinson’s Law: “Work expands so as to fill the time available for its completion.”
  • You had all week to finalize a proposal, but waited to do it until 4:30pm on the Friday.
  • He found that even a series of simple tasks increased in complexity to fill up the time allotted to it. As the length of time allocated to a task became shorter, the task became simpler and easier to solve.
  • ...4 more annotations...
  • Interestingly enough, I worked more but got less done. On top of that, I was stressed all the time.
  • I was an addict, not to work, but to thinking that I was working.
  • Specificity and restrictions create freedom and nourish creativity. Add them to your arsenal of tools as you become an uber productive and efficient creator.
  • I’ve referred to this in the past as “shoot first, aim later” or “jump … and then figure it out on the way down.” Pick a big goal, commit to it, and you’ll probably find that you’re able to figure out a way to achieve it.
  • sissij on 18 Nov 16
     
    I found this law very interesting. It also reminds me of the TedTalk we had during advisory on procrastination. Being busy and being busy and efficient is completely different. I have a personally experience that agree on this law. Last week, my days were completely filled with cross-country practice, musical rehearsal, and school work, so everyday I sleep around eleven o'clock. This week, I suddenly have a lot more time as the cross-country season ends and the musical is over, but I still go to bed at eleven o'clock and fill my time still not enough for me. I was busy this week but obviously, my efficiency is much lower than last week. --Sissi (11/18/2016)
Javier E

Can truth survive this president? An honest investigation. - The Washington Post - 0 views

www.washingtonpost.com/...sident-an-honest-investigation

truth Language post-truth postmodernism fact-checking democracy science enlightenment epistemic Psychology

shared by Javier E on 15 Jul 18 - No Cached
  • in the summer of 2002, long before “fake news” or “post-truth” infected the vernacular, one of President George W. Bush’s top advisers mocked a journalist for being part of the “reality-based community.” Seeking answers in reality was for suckers, the unnamed adviser explained. “We’re an empire now, and when we act, we create our own reality.”
  • This was the hubris and idealism of a post-Cold War, pre-Iraq War superpower: If you exert enough pressure, events will bend to your will.
  • the deceit emanating from the White House today is lazier, more cynical. It is not born of grand strategy or ideology; it is impulsive and self-serving. It is not arrogant, but shameless.
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  • Bush wanted to remake the world. President Trump, by contrast, just wants to make it up as he goes along
  • Through all their debates over who is to blame for imperiling truth (whether Trump, postmodernism, social media or Fox News), as well as the consequences (invariably dire) and the solutions (usually vague), a few conclusions materialize, should you choose to believe them.
  • There is a pattern and logic behind the dishonesty of Trump and his surrogates; however, it’s less multidimensional chess than the simple subordination of reality to political and personal ambition
  • Trump’s untruth sells best precisely when feelings and instincts overpower facts, when America becomes a safe space for fabrication.
  • Rand Corp. scholars Jennifer Kavanagh and Michael D. Rich point to the Gilded Age, the Roaring Twenties and the rise of television in the mid-20th century as recent periods of what they call “Truth Decay” — marked by growing disagreement over facts and interpretation of data; a blurring of lines between opinion, fact and personal experience; and diminishing trust in once-respected sources of information.
  • In eras of truth decay, “competing narratives emerge, tribalism within the U.S. electorate increases, and political paralysis and dysfunction grow,”
  • Once you add the silos of social media as well as deeply polarized politics and deteriorating civic education, it becomes “nearly impossible to have the types of meaningful policy debates that form the foundation of democracy.”
  • To interpret our era’s debasement of language, Kakutani reflects perceptively on the World War II-era works of Victor Klemperer, who showed how the Nazis used “words as ‘tiny doses of arsenic’ to poison and subvert the German culture,” and of Stefan Zweig, whose memoir “The World of Yesterday” highlights how ordinary Germans failed to grasp the sudden erosion of their freedoms.
  • Kakutani calls out lefty academics who for decades preached postmodernism and social constructivism, which argued that truth is not universal but a reflection of relative power, structural forces and personal vantage points.
  • postmodernists rejected Enlightenment ideals as “vestiges of old patriarchal and imperialist thinking,” Kakutani writes, paving the way for today’s violence against fact in politics and science.
  • “dumbed-down corollaries” of postmodernist thought have been hijacked by Trump’s defenders, who use them to explain away his lies, inconsistencies and broken promises.
  • intelligent-design proponents and later climate deniers drew from postmodernism to undermine public perceptions of evolution and climate change. “Even if right-wing politicians and other science deniers were not reading Derrida and Foucault, the germ of the idea made its way to them: science does not have a monopoly on the truth,
  • McIntyre quotes at length from mea culpas by postmodernist and social constructivist writers agonizing over what their theories have wrought, shocked that conservatives would use them for nefarious purposes
  • pro-Trump troll and conspiracy theorist Mike Cernovich , who helped popularize the “Pizzagate” lie, has forthrightly cited his unlikely influences. “Look, I read postmodernist theory in college,” Cernovich told the New Yorker in 2016. “If everything is a narrative, then we need alternatives to the dominant narrative. I don’t seem like a guy who reads [Jacques] Lacan, do I?
  • When truth becomes malleable and contestable regardless of evidence, a mere tussle of manufactured narratives, it becomes less about conveying facts than about picking sides, particularly in politics.
  • In “On Truth,” Cambridge University philosopher Simon Blackburn writes that truth is attainable, if at all, “only at the vanishing end points of enquiry,” adding that, “instead of ‘facts first’ we may do better if we think of ‘enquiry first,’ with the notion of fact modestly waiting to be invited to the feast afterward.
  • He is concerned, but not overwhelmingly so, about the survival of truth under Trump. “Outside the fevered world of politics, truth has a secure enough foothold,” Blackburn writes. “Perjury is still a serious crime, and we still hope that our pilots and surgeons know their way about.
  • Kavanaugh and Rich offer similar consolation: “Facts and data have become more important in most other fields, with political and civil discourse being striking exceptions. Thus, it is hard to argue that the world is truly ‘post-fact.’ ”
  • McIntyre argues persuasively that our methods of ascertaining truth — not just the facts themselves — are under attack, too, and that this assault is especially dangerous.
  • Ideologues don’t just disregard facts they disagree with, he explains, but willingly embrace any information, however dubious, that fits their agenda. “This is not the abandonment of facts, but a corruption of the process by which facts are credibly gathered and reliably used to shape one’s beliefs about reality. Indeed, the rejection of this undermines the idea that some things are true irrespective of how we feel about them.”
  • “It is hardly a depressing new phenomenon that people’s beliefs are capable of being moved by their hopes, grievances and fears,” Blackburn writes. “In order to move people, objective facts must become personal beliefs.” But it can’t work — or shouldn’t work — in reverse.
  • More than fearing a post-truth world, Blackburn is concerned by a “post-shame environment,” in which politicians easily brush off their open disregard for truth.
  • it is human nature to rationalize away the dissonance. “Why get upset by his lies, when all politicians lie?” Kakutani asks, distilling the mind-set. “Why get upset by his venality, when the law of the jungle rules?”
  • So any opposition is deemed a witch hunt, or fake news, rigged or just so unfair. Trump is not killing the truth. But he is vandalizing it, constantly and indiscriminately, diminishing its prestige and appeal, coaxing us to look away from it.
  • the collateral damage includes the American experiment.
  • “One of the most important ways to fight back against post-truth is to fight it within ourselves,” he writes, whatever our particular politics may be. “It is easy to identify a truth that someone else does not want to see. But how many of us are prepared to do this with our own beliefs? To doubt something that we want to believe, even though a little piece of us whispers that we do not have all the facts?”
haubertbr

CIA hacks TVs, phones all over the world, Wikileaks claims - 0 views

money.cnn.com/...wikileaks-cia-hacking

technology

shared by haubertbr on 08 Mar 17 - No Cached
  • haubertbr on 08 Mar 17
     
    To hide its operations, the CIA routinely adopted hacking techniques that enabled them to appear as if they were hackers in Russia, Wikileaks said. Wikileaks also claimed that nearly all of the CIA's arsenal of privacy-crushing cyberweapons have been stolen, and the tools are potentially in the hands of criminals and foreign spies.
anonymous

The Importance of a Positive Classroom - 0 views

www.ascd.org/...e-of-a-Positive-Classroom.aspx

shared by anonymous on 04 Nov 20 - No Cached
  • The Importance of a Positive Classroom
  • Simply put, students learn better when they view the learning environment as positive and supportive
  • A positive environment is one in which students feel a sense of belonging, trust others, and feel encouraged to tackle challenges, take risks, and ask questions
  • ...16 more annotations...
  • Such an environment provides relevant content, clear learning goals and feedback, opportunities to build social skills, and strategies to help students succeed
  • We all know the factors that can threaten a positive classroom environment: problems that kids bring from home, lack of motivation among students whose love of learning has been drilled right out of them, pressures from testing, and more
  • We can't control all these factors, but what if we could implement some simple strategies to buffer against their negative effects?
  • We can foster effective learning and transform the experience of our students every day by harnessing the power of emotions.
  • don't worry: I'm not talking about holding a daily class meeting to talk about feelings.
  • Stress, for example, has a significant negative effect on cognitive functioning
  • Unfortunately, when it comes to learning processes, the power of negative events greatly outweighs the power of positive event
  • As a result, we need to prepare ourselves with an arsenal of strategies that inoculate our students against the power of negativity.
  • By providing enough positive experiences to counteract the negative, we can help students avoid getting stuck in a "negative spiral"
  • Being caught up in negative emotions in this way impairs learning by narrowing students' focus and inhibiting their ability to see multiple viewpoints and solve problems.
  • This publication is not a cheat sheet, a "happyology" manual, or a Band-Aid that will fix that distressed kid and send him to a magical haven of learning.
  • Far from promising easy solutions and instant results, these strategies will increase students' capacity to tolerate the discomfort that comes with working hard and to accept that there are no easy answers—that only critical thinking and perseverance lead the way to mastery.
  • pause every 10 minutes and simply observe how many students are actively engaged and how many are off task.
  • If it is too challenging to chart the behavior of each student, you can choose a sample of the class to observe.
  • Remember to keep a full observation stance, and try not to leap to judgment. Keep in mind various "factors of mass distraction" that may contribute to problems , such as people entering or leaving the room, noise level, students' seating locations, and time of day. You might also want to note the affect or mood of students as they come into class that day.
  • As for the less productive moments you identify, the following strategies will help you create an environment that is more conducive to engagement and learning.
Javier E

The 'E-Pimps' of OnlyFans - The New York Times - 0 views

www.nytimes.com/...e-pimps-onlyfans.html

social media psychology sex exploitation commercial business model technology

shared by Javier E on 17 May 22 - No Cached
  • Over the course of two dozen interviews spanning six countries, I’ve discovered a thriving warren of companies employing a similar business model, using ghostwriters on OnlyFans to provide digital intimacy at scale. These agencies operate, out of necessity, a little below the radar. They collectively represent hundreds of models, and some claim to bring in profits that can range into the seven figures annually.
  • OnlyFans started in 2016, and has since emerged as the top platform worldwide for creators to sell monthly subscriptions for self-produced erotic content. The platform has become synonymous with this sort of business, though some use it for other purposes.
  • The real product is relationships. Money from subscriptions can be trivial compared with the profits earned by selling custom videos, sexting sessions and other forms of fan interaction that require more concerted engagement than simply posting to a feed.
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  • Above all, the manual emphasized efficiency. Managers were told to answer DMs in less than five minutes, since users were coming to OnlyFans for immediate gratification and would go elsewhere if ignored. It encouraged the creation of keyboard shortcuts, so that managers could deploy an arsenal of rote sexual phrases with a few keystrokes, steering conversations toward the hard sell. It also outlined a series of strategies to boost engagement on the pages, including a gambit in which models would offer to rate a picture of a subscriber’s penis for a fee.
  • “Every page needs to have an established back story to make the person seem more believable,” it stated. OnlyFans works because people pay for a connection that feels deeper than porn. The document encouraged Ekko’s employees, called page managers, to identify “big spenders” who would part ways with more than $200 in short order, and cultivate a deep rapport by asking about their life and what they do for a living.
  • This can be extremely time-consuming: In an interview with this magazine last year, an OnlyFans creator said she spends six hours a day just sexting with subscribers. But these relationships are important to cultivate. In a blog post on its website, OnlyFans encourages creators to cater to their “superfans,” who pay for custom content and will “give more if they feel they’re getting something special.”
  • But all of them take advantage of the same raw materials: the endless reproducibility of digital images; the widespread global availability of cheap English-speaking labor; and the world’s unquenchable desire for companionship.
  • The key to this business model is the ready availability of cheap English-speaking labor around the globe. Job postings for OnlyFans chatters are widespread on freelance sites like Upwork, many offering as little as $3 an hour. Agency heads told me they’ve hired workers from Eastern Europe, Africa and all across Southeast Asia. “At the end of the day, it is a geo-arbitrage business,”
  • This phenomenon is part of a broader boom in homespun online businesses that connect cheap developing-world labor with American consumers, allowing the proprietor to step back and reap the profits
  • During his stint as a chatter, Andre has become intimately familiar with the quirks and desires of the subscribers. Over time, he’s learned something of a sex-work cliché: More than sexual gratification, he said, many of the guys just want someone to talk to
karenmcgregor

Unraveling the Mysteries of Wireshark: A Beginner's Guide - 2 views

In the vast realm of computer networking, understanding the flow of data packets is crucial. Whether you're a seasoned network administrator or a curious enthusiast, the tool known as Wireshark hol...

education student university assignment help packet tracer

started by karenmcgregor on 14 Mar 24 no follow-up yet
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