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Matt Renwick

One Equally Effective but Lower-Cost Option to Summer School - 9 views

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    "Just improving poor children's access to books they can read and want to read may seem too simple an idea for improving reading achievement. But the evidence is clear. When children from low-income families are given the opportunity to select books for summer reading they will read those books during the summer months."
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
Sasha Thackaberry

Colleges use FAFSA information to reject students and potentially lower financial aid p... - 34 views

  • When would-be college students apply for financial aid using the FAFSA, they are asked to list the colleges they are thinking about attending. The online version of the form asks applicants to submit up to 10 college names. The U.S. Department of Education then shares all the information on the FAFSA with all of the colleges on the list, as well as state agencies involved in awarding student aid. The form notes that the information could be used by state agencies, but there is no mention that individual colleges will use the information in admissions or financial aid -- and there is no indication that students could be punished by colleges for where they appear on the list.
  • Now, some colleges use this “FAFSA position” when considering students’ applications for admission, which may affect decisions about admission or placement on the wait list, said David Hawkins, director of public policy and research for the National Association for College Admission Counseling.
  • So the institution is disinclined to use up a precious admissions slot for a student who is unlikely to enroll.  “The student has no idea that this information is being used in this context,” Hawkins said. The federal government "doesn’t indicate it. Institutions certainly aren’t telling students they are using it. Certainly, this is a concern from this association’s standpoint.”
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  • It's unclear if the Education Department was aware of this issue until contacted by Inside Higher Ed on Friday. The department now says it will review the longstanding practice of sharing the FAFSA positions with every college.
  • The use of the list on the FAFSA is just another example of how colleges are using increasingly sophisticated data mining techniques to recruit and shape their classes.
Marc Patton

DAKOTA 38 - Full Movie in HD - YouTube - 13 views

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    Jim and a group of riders retrace the 330-mile route of his dream on horseback from Lower Brule, South Dakota to Mankato, Minnesota to arrive at the hanging site on the anniversary of the execution.
Marc Safran

Flat Classroom Project - 1 views

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    The Flat Classroom Project is a global collaborative project that joins together middle and senior high school students. The Project uses Web 2.0 tools to make communication and interaction between students and teachers from all participating classrooms easier. The topics studied and discussed are real-world scenarios based on 'The World is Flat' by Thomas Friedman. One of the main goals of the project is to 'flatten' or lower the classroom walls so that instead of each class working isolated and alone, 2 or more classes are joined virtually to become one large classroom. This is done through the Internet using Web 2.0 tools such as Wikispaces and Ning.
Tanya Windham

Dissent Magazine - Winter 2011 Issue - Got Dough? Public Scho... - 59 views

  • To justify their campaign, ed reformers repeat, mantra-like, that U.S. students are trailing far behind their peers in other nations, that U.S. public schools are failing. The claims are specious. Two of the three major international tests—the Progress in International Reading Literacy Study and the Trends in International Math and Science Study—break down student scores according to the poverty rate in each school. The tests are given every five years. The most recent results (2006) showed the following: students in U.S. schools where the poverty rate was less than 10 percent ranked first in reading, first in science, and third in math. When the poverty rate was 10 percent to 25 percent, U.S. students still ranked first in reading and science. But as the poverty rate rose still higher, students ranked lower and lower. Twenty percent of all U.S. schools have poverty rates over 75 percent. The average ranking of American students reflects this. The problem is not public schools; it is poverty. And as dozens of studies have shown, the gap in cognitive, physical, and social development between children in poverty and middle-class children is set by age three.
  • Drilling students on sample questions for weeks before a state test will not improve their education. The truly excellent charter schools depend on foundation money and their prerogative to send low-performing students back to traditional public schools. They cannot be replicated to serve millions of low-income children. Yet the reform movement, led by Gates, Broad, and Walton, has convinced most Americans who have an opinion about education (including most liberals) that their agenda deserves support.
  • THE COST of K–12 public schooling in the United States comes to well over $500 billion per year. So, how much influence could anyone in the private sector exert by controlling just a few billion dollars of that immense sum? Decisive influence, it turns out. A few billion dollars in private foundation money, strategically invested every year
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  • Hundreds of private philanthropies together spend almost $4 billion annually to support or transform K–12 education, most of it directed to schools that serve low-income children (only religious organizations receive more money). But three funders—the Bill and Melinda Gates Foundation, the Eli and Edythe Broad (rhymes
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    A great analysis of the problems with financial giants supporting educational reform.
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    This is one juicy article which may change your view of the big picture of ed reform or help you get others to see it more clearly. Pass it on.
Holly Barlaam

University of Oklahoma Histology - 35 views

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    In each topic, you will find a laboratory exercise, and brief description of the histological material. Includes cytology, epithelium, connective tissue, cartilage, bone and bone formation, blood, hematopoeisis, muscle, nervous tissue, cardiovascular system, lympathic and immune system, integument, upper GI, lower GI, liver, gallbladder, pancreas, respiratory system, urinary system, endocrine, male reproductive, female reproductive
Wayne Holly

Closing the gap - 4 views

shared by Wayne Holly on 12 Oct 11 - No Cached
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    "…students who do not have access to a computer at home tend to be lower achievers than the others and, secondly, it would also seem to  be the case that students using computers at home less often had below-average results."
Misha Miller

Using Groups Effectively: 10 Principles » Edurati Review - 50 views

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    "Conversation is key . Sawyer succinctly explains this principle: "Conversation leads to flow, and flow leads to creativity." When having students work in groups, consider what will spark rich conversation. The original researcher on flow, Mihaly Csikszentmihalyi, found that rich conversation precedes and ignites flow more than any other activity.1 Tasks that require (or force) interaction lead to richer collaborative conceptualization. Set a clear but open-ended goal . Groups produce the richest ideas when they have a goal that will focus their interaction but also has fluid enough boundaries to allow for creativity. This is a challenge we often overlook. As teachers, we often have an idea of what a group's final product should look like (or sound like, or…). If we put students into groups to produce a predetermined outcome, we prevent creative thinking from finding an entry point. Try not announcing time limits. As teachers we often use a time limit as a "motivator" that we hope will keep group work focused. In reality, this may be a major detractor from quality group work. Deadlines, according to Sawyer, tend to impede flow and produce lower quality results. Groups produce their best work in low-pressure situations. Without a need to "keep one eye on the clock," the group's focus can be fully given to the task. Do not appoint a group "leader." In research studies, supervisors, or group leaders, tend to subvert flow unless they participate as an equal, listening and allowing the group's thoughts and decisions to guide the interaction. Keep it small. Groups with the minimum number of members that are needed to accomplish a task are more efficient and effective. Consider weaving together individual and group work. For additive tasks-tasks in whicha group is expectedtoproduce a list, adding one idea to another-research suggests that better results develop
eileen tobin

Bloom's Taxonomy Blooms Digitally, Andrew Churches - 33 views

  • In the 1950's Benjamin Bloom developed his taxonomy of cognitive objectives, Bloom's Taxonomy. This categorized and ordered thinking skills and objectives. His taxonomy follows the thinking process. You can not understand a concept if you do not first remember it, similarly you can not apply knowledge and concepts if you do not understand them. It is a continuum from Lower Order Thinking Skills (LOTS) to Higher Order Thinking Skills (HOTS). Bloom labels each category with a gerund.
  • In the 1990's, a former student of Bloom, Lorin Anderson, revised Bloom's Taxonomy and published this- Bloom's Revised Taxonomy in 2001.Key to this is the use of verbs rather than nouns for each of the categories and a rearrangement of the sequence within the taxonomy. They are arranged below in increasing order, from low to high.
    • eileen tobin
       
      I like that the revised version is ongoing. Eileen Tobin
  • Each of the categories or taxonomic elements has a number of key verbs associated with it Lower Order Thinking Skills (LOTS) Remembering - Recognising, listing, describing, identifying, retrieving, naming, locating, finding Understanding - Interpreting, Summarising, inferring, paraphrasing, classifying, comparing, explaining, exemplifying Applying - Implementing, carrying out, using, executing Analysing - Comparing, organising, deconstructing, Attributing, outlining, finding, structuring, integrating Evaluating - Checking, hypothesising, critiquing, Experimenting, judging, testing, Detecting, Monitoring Creating - designing, constructing, planning, producing, inventing, devising, making
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  • Bloom's digital taxonomy map
    • Eileen Tobin
       
      This is a great tool for Level Questions
  • Bloom's Revised Taxonomy
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    Bloom's taxonomy as it relates to 21st century technology skills
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    Bloom's Taxonomy Blooms Digitally - By Andrew Churches, April 1, 2008
onepulledthread

Why Changing the Mission of Grad Programs is Hard… and Getting Harder | Sad Iron - 16 views

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    blog discusses increasing workload for faculty, threats to faculty governance, and lower number of tenured professors.  Good blog generally to follow on higher ed issues
Maureen Greenbaum

The Digital Disparities Facing Lower-Income Teenagers - The New York Times - 34 views

  • Teens and tweens, for instance, generally reported spending much more time watching television than they did on social media.
  • Black teenagers spent a daily average of eight hours and 26 minutes on screens for entertainment purposes, according to the report. That was two hours and eight minutes more than their white peers. Within that screen time, black teenagers spent most of their time — an average of about four hours daily — on smartphones, compared with about three hours for Hispanic teenagers and two hours for white teenagers.
Martin Burrett

Classroom friendships may offset effects of punitive parents - 4 views

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    "Angry, threatening and highly critical parenting is more likely to result in children with defiant, noncompliant and revengeful behaviour that spills over to adulthood and impacts relationships with all authority figures. Now a study by researchers at UC San Francisco has confirmed this link and found that kindergarten may provide a unique opportunity for these harshly parented children to retool negative behaviour. The study is published in the journal Development and Psychopathology on Nov. 21, 2018. In the study, the researchers looked at 338 kindergartners in six public schools in the San Francisco Bay Area. They found that 10 percent of the children met the criteria for the oppositional defiant disorder (ODD). Among this group, 71 percent had been exposed to high levels of harsh parenting, versus 29 percent who had been raised with lower levels of harsh parenting."
Martin Burrett

University education makes students more agreeable, conscientiousness - 4 views

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    "A recent study published in Oxford Economic Papers indicates that university education has a dramatically positive effect on the development of non-cognitive skills like conscientiousness, extraversion and agreeableness, in addition to the expected intellectual benefits. The paper also shows that the impact of education on these skills is even more dramatic for students from lower socioeconomic backgrounds."
meghankelly492

Culture of East Africa | USA Today - 1 views

  • Up until the 15th century, the cultures of Eastern Africa lived in relative isolation, building up kingdoms and empires, spreading agriculture and civilization throughout the region.
  • n the 15th century, the Portuguese began exploring the coast of East Africa, seeking to seize control of the spice trade from the Muslim presence in the Middle East. Islamic resistance to this led to a large-scale Arab colonization of the coast, which lasted until European colonialism began in earnest in the 19th century.
  • There are hundreds of languages spoken throughout East Africa, ranging from those spoken by only a few thousand to those spoken by millions. The most widely-spoken language, by far, is Swahili, with more than 5 million native speakers, and millions more who speak it as a secondary trade language. The island nations of East Africa, such as Madagascar, do not speak Swahili, instead speaking their own native languages, such as Malagasy.
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  • Clothes are brightly colored and consist of simple wraps, covering either only the lower body or both the lower body and upper body. In Islamic regions, covering is more substantial, and daily wear includes a head wrap
  • The legacy of Islamic rule along the coast of East Africa remains strong, and the majority of those on the coast and in North-East Africa are practicing Muslims
  • East African music consists of simpler instrumentation than Central Africa or West Africa, with a heavy reliance on percussion and basic horns, and less in the way of complex bowing. Since the 1980s East Africa has produced a great deal of fusion music, incorporating elements from Western music to create mash-ups of traditional and modern. Many countries in North-East Africa draw on Arabic influence in their music as well, incorporating elements such as religious poetry into the songs.
Martin Burrett

Grouping students into ability-based sets holds back less able pupils - 18 views

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    "Students classed as less able are being hindered by being grouped into ability-based sets, according to new research published today in the Cambridge Journal of Education. Teachers' expectations of pupils in lower sets, which are based on their prior academic record and closely tied to the belief that their behaviour will be more challenging, could instil a damaging 'culture of dependency' on teachers among these groups."
Martin Burrett

Mindfulness in the Classroom by @Ed_Tmprince - 26 views

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    "The development of mindfulness has, at its heart, the reduction of stress hormone levels. Teaching children a number of Mindfulness strategies allow children to find the ones that best meet their needs and successfully reduces their stress and anxiety. Massage and the power of touch are naturally relaxing and are ways to reduce these stress hormones. Maria Hernandez-Reid is a researcher at the Touch Research Institute. She says that the lowering of stress hormones not only reduces the feelings of anxiety but also supports a healthier immune system."
Martin Burrett

Investing in public education earns high marks for greater upward mobility - 4 views

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    "Investing in education may help boost economic opportunities for the next generation, according to a team of economists. In a USA study, researchers suggest that investing in public education can lead to more upward economic mobility and lower teen pregnancy rates, as well as provide a way to ease income inequality."
Martin Burrett

Children from disadvantaged backgrounds do less vigorous physical activity - 2 views

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    "Children from disadvantaged backgrounds and certain ethnic minority backgrounds, including from Pakistani and Bangladeshi backgrounds, have lower levels of vigorous physical activity, according to researchers at the University of Cambridge. The patterns mirror inequalities seen in levels of childhood obesity, suggesting a need for a greater focus on the promotion of vigorous physical activity, particularly for those children from more disadvantaged backgrounds."
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