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John McMurtry

Diabetes' genetic underpinnings can vary based on ethnic background - 0 views

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    There is an interesting link in this article that leads to cladograms of human populations and various genetic diseases
John McMurtry

A4 Revision of Humans SL - One Page Revision Sheets - IB Biology - 0 views

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    David, I have looked at this page and a few others. I was intrigued by your tagxedos.  I load the program but can't find out how to create. It looks interesting but unavailable.  Also it seems you need the progrma to view the animated word cloud so a word to the reader might be needed.
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    Hi Jack, Thanks for this. Are you using Safari? I think the animated cloud uses Microsoft Silverlight. I should work on Safari, but you are absolutely right it needs a note to invite users to install Silverlight. It will work on IE, Firefox, Safari4+ Chrome. Thanks
david faure

http://www.wolframalpha.com/input/?i=AAGCTAGCTAGC - 0 views

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    A very good search engine for DNA sequences in the human genome. Useful in IB topic 4
david faure

ibbiologychapel - Topic 11 - Human Physiology (HL) - 0 views

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    A really thorough wiki of IB biology topics includes ppt, video clips and drawings
david faure

» Sense Perception - 0 views

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    "I hate vegetables and refuse to eat them" Filed under General TOK, Human Sciences, Knowledge Issues, Sense Perception,
david faure

Chimps Grieve Over Dead Relatives - ScienceNOW - 0 views

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    Chimp behaviour very human like
david faure

EDITING: Digestion - Human Health & Physiology - IB Biology - 0 views

    • david faure
       
      some link problems - I couldn't browse for files    - so links to data questions villus and lipase - don't work. nor Digestion activity in the practicals
John McMurtry

Older overweight children consume fewer calories than their healthy weight peers - News... - 0 views

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    This would be great for Opt A energy in human diets
david faure

Gas Exchange - Human Health & Physiology - IB Biology - 0 views

    • david faure
       
      broken link to the lung capacity experiment
John McMurtry

Genetic map helps untangle 'complex diseases' | Futurity - 0 views

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    Good for Human genome project and link to genetic library, pharmacology and identifying genetic diseases.
david faure

Howard Walter Florey and Ernst Boris Chain | Chemical Heritage Foundation - 0 views

  • In early January 1941 Florey was ready to test penicillin on humans. The first English patient to whom the drug was administered was a young woman whose cancer was beyond treatment and who had agreed to test penicillin’s toxicity. She showed an alarming reaction—trembling and sharply rising fever. However, Abraham was able to show that impurities in the drug, not the drug itself, had caused the adverse reaction. In February a policeman became the first patient with an infection to be treated with penicillin in the hope of achieving a cure. No one knew the dosages and the length of treatment required to eliminate various bacterial infections; these parameters were being worked out by just such trials—primitive by today’s standards. The policeman’s condition at first improved with the penicillin therapy and then relapsed. The penicillin supply had almost run out, and even retrieving penicillin from the man’s own urine (a commonly used procedure in the early clinical trials) failed to save him. Florey vowed that from then on he would always have enough penicillin to complete a treatment. Increasing production and yields now became of overriding importance. Because Penicillium mold requires air to grow, it was first surface-cultured in regular laboratory flasks. Soon all manner of vessels were being used, including hospital bedpans and hundreds of made-to-order ceramic pots. The operation quickly outgrew the space assigned to the Dunn labs, and neighboring facilities at Oxford were borrowed for the duration. More personnel had to be hired, including six “penicillin girls” who handled the culture pots in the cold room of the extraction plant. Florey had constructed a veritable penicillin factory within the precincts of the ancient university, an institution that had stood proudly aloof from industry for centuries. On the other hand, when Chain urged that a patent be sought on penicillin, as was usual in German research institutes, Florey refused to enter into such a commercial agreement on a discovery he presumed would benefit all mankind—a decision that long rankled Chain. To increase penicillin supplies, Florey approached various British pharmaceutical firms, but only ICI considered itself in a position to accept the challenge (though many later joined the effort). British pharmaceutical firms were already committed to manufacturing other drugs needed for military and civilian populations, or, worse, their facilities had been devastated by enemy bombardment. To obtain the assistance of the United States, then still a noncombatant, in increasing production and furthering research, Florey and Heatley flew across the Atlantic in the beginning of July 1941. Florey’s American connections served him well. The two English emissaries spent the Fourth of July weekend with a friend from his Rhodes year, who put Florey and Heatley in contact with the U.S. Department of Agriculture’s Northern Regional Research Laboratories (NRRL) in Peoria, Illinois, where large-scale fermentation processes were being actively studied. A. N. Richards, Florey’s old laboratory director at the University of Pennsylvania, had become chair of the Committee on Medical Research in the Office of Scientific Research and Development, which was organized to marshal the strength of the Allies. Because Richards knew Florey’s character, he decided to expedite unified action on penicillin on the basis of just one presentation. At the height of the program, the British-American penicillin effort involved thousands of people and some 35 institutions: university chemistry and physics departments, government agencies, research foundations, and pharmaceutical companies.
    • david faure
       
      Read this account of the early human tests on penicilin. How many examples can you find which would be unethical today?
david faure

Science Museum of Minnesota - Tissues of Life - 0 views

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    Nice colourful website from the science museum of minnisota. Shows different tissue types.
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