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smilex3md

10 reasons Ph.D. students fail - 64 views

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    "10 easy ways to fail a Ph.D. The attrition rate in Ph.D. school is high. Anywhere from a third to half will fail. In fact, there's a disturbing consistency to grad school failure. I'm supervising a lot of new grad students this semester, so for their sake, I'm cataloging the common reasons for failure. Read on for the top ten reasons students fail out of Ph.D. school."
Kenuvis Romero

Psilocybin (magic mushrooms) - 0 views

  • The biosinthetic path that allow Psilocybin to be produced by mushrooms is as follow:
  • The several analogyes with triptophan aminoacid, with whom psilocybin has common origines are probably at the base of psilocybin ability to induced psychedelich alteration on humans.
  • Amino acids, including tryptophan, act as building blocks in protein biosynthesis. In addition, tryptophan functions as a biochemical precursor for many compounds like serotonin Serotonin (a neurotransmitter), synthesized via tryptophan hydroxylase. Serotonin, in turn, can be converted to melatonin (a neurohormone), via N-acetyltransferase and 5-hydroxyindole-O-methyltransferase activities
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  • it's been noticed that psilocyn can indirectly raise dopamine concentration withing the basal ganglia.
  • Almost 50% of oral psilocybin is absorbed by stomach and gut; from here is lead to liver, where it's converted in psilocin, pharmacologically active form, that can furtherly be glucoronated and escreted with urine or converted in other psilocinics metabolites.
  • In rats, the median lethal dose (LD50) when administered orally is 280 milligrams per kilogram (mg/kg), approximately one and a half times that of caffeine. When administered intravenously in rabbits, psilocybin's LD50 is approximately 12.5 mg/kg
  • traces of the compund can be detected in unine even after 7 days.
  • Clinical studies show that psilocin concentrations in the plasma of adults average about 8 µg/liter within 2 hours after ingestion of a single 15 mg oral psilocybin dose; psychological effects occur with a blood plasma concentration of 4–6 µg/liter. Psilocybin is about 100 times less potent than LSD on a weight per weight basis, and the physiological effects last about half as long.
  • Within 24 hours from administration 65% of the alucinogen is escreted by urine, while another 15-20% is excreted by bile and feces.
  • Monoamine oxidase inhibitors (MAOI) have been known to prolong and enhance the effects of psilocybin. Alcohol consumption may enhance the effects of psilocybin, because acetaldehyde, one of the primary breakdown metabolites of consumed alcohol, reacts with biogenic amines present in the body to produce MAOIs related to tetrahydroisoquinoline and β-carboline. Tobacco smokers can also experience more powerful effects with psilocybin, because tobacco smoke exposure decreases levels of MAO in the brain and peripheral organs.
  • This could lead to a lower usage o f glucose, but the same study admitted an increase glucose usage by the whole brain cell, meaning a differente use of this sugar while the drug is having effects.
  • use of MRI (functional magnetic resounance) showed that the decresed blood flow associate with decreasing in neural activity. A simple explanation for this unexpected situation could be the serotoning agonist action of psilocybin, action that seems to be focused more on 5-HT receptors than on 5-HT2A.
  • psilocibyn is able to act as a 5-HT agonist binding directly its receptors.
  • augmented glucose consumption in several brain regions; this lead to the conclusion that psilocybin is some way able to modify the physiological glucosal metabolic rate of our body
  • The strong inibition of the PCC is now thought to be most significant action of psilocybin on neural disaccoppiation
    • Kenuvis Romero
       
      Lower brain glucose metabolism is linked with increased capacity for working memory.
  • Psilocybin comprises approximately 1% of the weight of Psilocybe cubensis mushrooms, and so nearly 1.7 kilograms (3.7 lb) of dried mushrooms, or 17 kilograms (37 lb) of fresh mushrooms, would be required for a 60-kilogram (130 lb) person to reach the 280 mg/kg LD50 value.
  • psilocybin can cause anxiety and increased heart rate and BP which is very counter- productive for someone on metoprolol and micardis.
  • propose the possibility to use psilocybin as a palliative therapy for terminal illness like cancer but also as a real antidepressive active principle available for the family of the patient. The rational is foundable in the fact that we usually administer SSRI as antidepressive agents, so psilocibyn sholud be useful in this purpose for its selective agonist action on 5-HT2A receptors
Erin Crisp

Faulty Towers: The Crisis in Higher Education | The Nation - 28 views

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    How higher education perpetuates a system that produces too many degreed professionals- only 50% highering rate for upper level degrees.
Maureen Greenbaum

Florida's remedial law leads to decreasing pass rates in math and English | InsideHigherEd - 10 views

  • There's a little bit of a social stigma. It's easier for students to say they're not good at math. It's much harder to have conversations about having difficulty with writing or reading
    • Maureen Greenbaum
       
      Same a tech ...people (students and others who say I'm not good ...my children...
  • students who failed college-level math or English courses were more likely to put off retaking those courses or not return to college. 
  • these problems can be solved if developmental courses counted toward a student's degree plan. But that solution won't fix everything. 
jodi tompkins

What is Twitter? - 36 views

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    Twitter is growing at an impressive rate. But what does Twitter look like? How does it work? And how do you get started with it? In this film you learn everything you need to know to get started with Twitter
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    Thanks, Jodi! Great little video.
Clint Hamada

FAQ For Librarians - Outreach Wiki - 51 views

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    How common are mistakes on Wikipedia? Because Wikipedia is editable by anyone we can't guarantee you won't stumble across a mistake. But mistakes are fairly rare. External studies have suggested they occur at about the same rate they do in traditional encyclopedias. One thing that is great about Wikipedia is that it allows anyone to correct a mistake. A printed encyclopedia will need to wait for its next edition for a mistake to be fixed. On Wikipedia a mistake can be, and often is, fixed instantly.
Ed Webb

Please Sir, how do you re-tweet? - Twitter to be taught in UK primary schools - 2 views

  • The British government is proposing that Twitter is to be taught in primary (elementary) schools as part of a wider push to make online communication and social media a permanent part of the UK’s education system. And that’s not all. Kids will be taught blogging, podcasting and how to use Wikipedia alongside Maths, English and Science.
  • Traditional education in areas like phonics, the chronology of history and mental arithmetic remain but modern media and web-based skills and environmental education now feature.
  • The skills that let kids use Internet technologies effectively also work in the real world: being able to evaluate resources critically, communicating well, being careful with strangers and your personal information, conducting yourself in a manner appropriate to your environment. Those things are, and should be, taught in schools. It’s also a good idea to teach kids how to use computers, including web browsers etc, and how those real-world skills translate online.
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  • I think teaching kids HOW TO use Wikipedia is a step forward from ordering them NOT TO use it, as they presently do in many North American classrooms.
  • Open Source software is the future and therefore we need to concentrate on the wheels and not the vehicle!
  • Core skills is very important. Anyone and everyone can learn Photoshop & Word Processing at any stage of their life, but if core skills are missed from an early age, then evidence has shown that there has always been less chance that the missing knowledge could be learnt at a later stage in life.
  • Schools shouldn’t be about teaching content, but about learning to learn, getting the kind of critical skills that can be used in all kinds of contexts, and generating motivation for lifelong learning. Finnish schools are rated the best in the world according to the OECD/PISA ratings, and they have totally de-emphasised the role of content in the curriculum. Twitter could indeed help in the process as it helps children to learn to write in a precise, concise style - absolutely nothing wrong with that from a pedagogical point of view. Encouraging children to write is never a bad thing, no matter what the platform.
  • Front end stuff shouldn’t be taught. If anything it should be the back end gubbins that should be taught, databases and coding.
  • So what’s more important, to me at least, is not to know all kinds of useless facts, but to know the general info and to know how to think and how to search for information. In other words, I think children should get lessons in thinking and in information retrieval. Yes, they should still be taught about history, etc. Yes, it’s important they learn stuff that they could need ‘on the spot’ - like calculating skills. However, we can go a little bit easier on drilling the information in - by the time they’re 25, augmented reality will be a fact and not even a luxury.
  • Schools should focus more on teaching kids on how to think creatively so they can create innovative products like twitter rather then teaching on how to use it….
  • Schools should focus more on teaching kids on how to think creatively so they can create innovative products like twitter rather then teaching on how to use it….
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    The British government is proposing that Twitter is to be taught in primary (elementary) schools as part of a wider push to make online communication and social media a permanent part of the UK's education system. And that's not all. Kids will be taught blogging, podcasting and how to use Wikipedia alongside Maths, English and Science.
Ann Steckel

Dominican U Couples Course Evaluations with LMS -- Campus Technology - 0 views

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    Dominican University of California has increased response rates for its course evaluations by implementing Scantron's Class Climate course evaluation software as a Blackboard Building Block.
Lee-Anne Patterson

Official Google Blog: Adding search power to public data - 0 views

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    The data we're including in this first launch represents just a small fraction of all the interesting public data available on the web. There are statistics for prices of cookies, CO2 emissions, asthma frequency, high school graduation rates, bakers' salaries, number of wildfires, and the list goes on. Reliable information about these kinds of things exists thanks to the hard work of data collectors gathering countless survey forms, and of careful statisticians estimating meaningful indicators that make hidden patterns of the world visible to the eye. All the data we've used in this first launch are produced and published by the U.S. Bureau of Labor Statistics and the U.S. Census Bureau's Population Division. They did the hard work! We just made the data a bit easier to find and use.
Holim Song

Document View - 0 views

shared by Holim Song on 11 Jun 09 - Cached
  • There were three research questions that were used to guide the organization of this study. The first question sought to determine the level of digital literacy present in schools based upon their state accountability rating. Statistically significant differences between digital literacy levels of students according to their state accountability rating were investigated in the second question. The third question examined the statistically significant changes in elementary students' levels of digital literacy over a period of time
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    Web-based instruction
Liane St. Laurent

Reviews and Ratings for Family Movies, TV Shows, Websites, Video Games, Books and Music - 1 views

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    Family Entertainment reviews and ratings for movies, television, video games, music CDs, books, and web sites.Common Sense Media helps parents choose what's best for their kids.
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    Lessons on internet use.
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    Register for a free account and access: Curricula/scope&sequence across grade levels Classroom lessons Parent resources and MORE! This site is all about teaching age appropriate and responsible use.
Roland Gesthuizen

Schools must alter 'bystander' strategy as bullies scare off onlookers | News.com.au - 20 views

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    "SCHOOLS are still using ineffective anti-bullying strategies and some aren't putting their policies into practice, experts warn, as the rate of bullying in Queensland playgrounds continues to climb. Experts say schools need to be more effective not work harder."
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    Suggests that there is an important and passive role for bystanders.
Randolph Hollingsworth

EdWorks | KnowledgeWorks (Ohio) - 17 views

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    "Turning Around Ohio's High Schools KnowledgeWorks managed one of the nation's most ambitious high school turnaround efforts with the Ohio High School Transformation Initiative (OHSTI) and the development of Early College High Schools. The effort had a positive impact on more than 50,000 students and trained more than 2,000 teachers in Ohio's most challenging school districts. Specifically, students performed better on state standardized tests, attendance rates rose, and the academic achievement gap between minority and non-minority students began to significantly close."
Peter Beens

Two-thirds of new teachers can't find full-time work - - Macleans OnCampus - 26 views

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    Few other graduates in Canada have as much reason for pessimism as those who finished teacher's college this spring. A study from the Ontario College of Teachers shows that two-thirds (67 per cent) of education graduates from Ontario's class of 2009 found themselves unemployed or underemployed in the following year. And, the unemployment rate among new teachers has exploded to a staggering 24 per cent - up from just three per cent in 2006.
maureen greenbaum

Edu-Traitor! Confessions of a Prof Who Believes Higher Ed Isn't the Only Goal | HASTAC - 52 views

  • many brilliant, talented young people are dropping out of high school because they see high school as implicilty "college prep" and they cannot imagine anything more dreary than spending four more years bored in a classroom when they could be out actually experiencing and perfecting their skills in the trades, the skills, and the careers that inspire them.
  • The abolishing of art, music, physical education, tech training, and shop from grade schools and high schools means that the requirement for excellence has shrunk more and more right at the time when creativity, imagination, dexterity, adaptability to change, technical know-how, and all the rest require more not less diversity. 
    • Peg Mahon
       
      AMEN!
  • we make education hell for so many kids, we undermine their skills and their knowledge, we underscore their resentment, we emphasize class division and hierarchy, and we shortchange their future and ours,
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  • There are so many viable and important and skilled professions that cannot be outsourced to either an exploitative Third World sweat shop or to a computer, that require face-to-face presence, and a bucketload of skills--but that  do not require a college education:  the full range of IT workers, web designers, body workers (ie deep tissue massage), yoga and pilates instructors, fitness educators, DJ's, hair dressers, retail workers, food industry professionals, entertainers,  entertainment industry professionals, construction workers, dancers, artists, musicians, entrepreneurs, landscapers, nanny's, elder-care professionals, nurses's aids, dog trainers, cosmetologists, athletes, sales people, fashion designers, novelists, poets, furniture makers, book keepers, sound engineers, inn keepers, wedding planners, stylists, photographers, auto mechanics, and on and on.  
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    Cathy Davidson
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    In general, I agree. However, novelists and poets don't need college?? And perhaps less so to artists and musicians? Perhaps... but what better way to learn the history and analysis of their Art, in order to place their own work in context?
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    I could not agree more with you Maureen. As a long time middle school teacher in Oakland and Mpls I am thoroughly convinced that our nation and our states are nuts to have cut all of the tech and arts classes out of elementary, middle and high schools. EVERY student should learn a trade/skill set in high school. The hs drop out rate is horrifying and no surprise that the crime rate follows. We have a nation of under achieving teens because the adults have not kept up with funding the myriad of opportunities that would capture and harness their interests and creativity. I look forward to reading your book Maureen and to following you on here.
Steve Ransom

Our Future, Our Teachers: The Obama Administration's Plan for Teacher Education Reform ... - 102 views

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    Some needed changes here, but rating program effectiveness on K12 student test scores is ludicrous!
Steve Ransom

ASCD Express 6.26 - Media Use Among U.S. Children: Where Are the Books? - 2 views

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    "white youth consume an average of 8.5 hours of media content and black, Hispanic, and Asian youth each consume about 13 hours...But when asked how much time they spent using computers for schoolwork, the rates ranged from 16 to 20 minutes a day, according to the study."
Carol Ansel

The Daring Librarian: Wikipedia is not wicked! - The Answer Sheet - The Washington Post - 70 views

  • Teaching Wikipedia in 5 Easy Steps: *Use it as background information *Use it for technology terms *Use it for current pop cultural literacy *Use it for the Keywords *Use it for the REFERENCES at the bottom of the page!
  • 4 ways to use Wikipedia (hint: never cite it) Teachers: Please stop prohibiting the use of Wikipedia 20 Little Known Ways to Use Wikipedia Study: Wikipedia as accurate as Encyclopedia Britannica Schiff, Stacy. “Know it all: Can Wikipedia conquer expertise?” The New Yorker, February 26, 2006 And: Yes students, there’s a world beyond Wikipedia **Several years ago, Nature magazine did a comparison of material available on Wikipedia and Brittanica and concluded that Brittanica was somewhat, but not overwhelmingly, more accurate than Wikipedia. Brittanica lodged a complaint, and here, you can see what it complained about as well as Nature’s response. Nature compared articles from both organizations on various topics and sent them to experts to review. Per article, the averages were: 2.92 mistakes per article for Britannica and 3.86 for Wikipedia. -0- Follow The Answer Sheet every day by bookmarking http://www.washingtonpost.com/blogs/answer-sheet. And for admissions advice, college news and links to campus papers, please check out our Higher Education page. Bookmark it! var entrycat = ' ' By Valerie Strauss  |  05:00 AM ET, 09/07/2011 .connect_widget .connect_widget_text .connect_widget_connected_text a {display:block;} #center {overflow:visible;} /*.override-width iframe {width:274px !important;}*/ Tumblr Reddit Stumbleupon Digg Delicious LinkedIn http://platform.twitter.com/widgets/tweet_button.html#_=1315504289567&count=horizontal&counturl=http%3A%2F%2Fwww.washingtonpost.com%2Fblogs%2Fanswer-sheet%2Fpost%2F
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    Excellent perspective on "The 'W' Word" - use it wisely for what it is - high school and college kids shouldn't be citing any general knowledge encyclopedias for serious research - but that doesn't mean there aren't some excellent uses for it.
ZeroDivide .

Nova Fabric of the cosmos The illusion of time full video - YouTube - 48 views

  • The Evolution of Time and the Carnot Cycle at the Edge of the Universe
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    We are all time travelers... drifting through time at a steady pace, one moment at a time. In what direction are we moving through time? Or does time move through us? How many dimensions of time are there? Though slightly allegorical, three-dimensional time offers physics new parameters, accounting for conventional and exotic physical phenomena, while maintaining the conservation of energy and symmetry groups found in physical law.  I began playing with the idea that all of physics could be reduced to just interactions between spatial and temporal coordinates. I wondered if inertia and momentum might be composed strictly of temporal components. This would require extra time dimensions. Could inertia or momentum be used as indicators of multi-dimensional time? What about charge, spin, and other properties of matter? Answers to some of these questions appeared to reside in neutrino research, specifically neutrino flavor oscillation.  The universality between Thermodynamics and Temporal Mechanics can reduce the fundamental forces of nature into a single expression, a new equivalence principle, which can be used as the generator for the evolution of time. Once Quantum Mechanics is seen through the lens of three-dimensional time, the EPR paradox looses its mystique. The speed of light may be restricted to a set speed limit within each individual frame of reference, however, frames of reference can undergo periods-of-time at varying rates of the passage-of-time. If the positive side of absolute zero is a state of condensed matter, what is on the negative side of absolute zero? Uncondensed matter?  The anti-matter aspect of the Dirac equations may have been misinterpreted. The convention is to assume that "matter" is composed of "particles" distinctly different from "antimatter" composed of "antiparticles". The assumption of one time dimension locks in this interpretation of the Dirac Equations. However, the uniform production of particles and antipa
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