منابع مشابه
An International View of Robotics as an Educational Medium
2 Igor M. Verner, Department of Education in Technology and Science, Technion – Israel Institute of Technology, Haifa 32000, Israel, [email protected] Abstract This paper introduces the Trinity College FireFighting Home Robot Contest and describes the curricular impact of the contest in colleges and high schools. We present and discuss student work motivated by the contest. Fina...
متن کاملNew blood culture medium.
A growth medium with a specific oxidation-reduction potential containing peptone, dextrose, sodium succinate, sodium lactate, gelatin, sodium bicarbonate and blue tetrazolium, an indicator dye, in a tris(hydroxymethyl)aminomethane buffer was used to detect the presence of microorganisms in blood. The procedure involved the introduction of blood (and bacteria) into the growth medium with the dye...
متن کاملContinuous culture of ruminal microorganisms in chemically defined medium. II. Culture medium studies.
Ruminal ciliates have been grown in continuous culture in chemically defined media and in the absence of viable bacteria. Oligotrichic ruminal ciliates seem to require insoluble carbohydrates for growth; the holotrichic ciliates require soluble carbohydrates, but at low concentrations. Both groups of ciliates utilize amino acids as their principal nitrogen source when these are supplied in micr...
متن کاملComparison of Mycobacterium tuberculosis culture using liquid culture medium and Lowenstein Jensen medium in abdominal tuberculosis.
BACKGROUND Traditionally, the Lowenstein Jensen (LJ) medium has been used for culturing Mycobacterium tuberculosis. In abdominal tuberculosis (TB), the reported yield from tissue culture is between 20% and 60%. Liquid cultures are reported to give a higher yield but there is little data available in abdominal TB. AIM To compare the yield of TB culture with BACTEC 460TB liquid medium and LJ me...
متن کاملCytokinins in Azotobacter vinelandii Culture Medium.
Azotobacter vinelandii OP was grown to stationary phase in defined medium. The cell-free culture medium was analyzed for cytokinin content by XAD-2 and Sephadex LH-20 chromatography, thin-layer chromatography, tobacco callus bioassay, and enzyme immunoassay. Three cytokinin-active fractions were detected and tentatively identified as trans-zeatin, isopentenyladenosine, and isopentenyladenine. T...
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ژورنال
عنوان ژورنال: Chemical & Engineering News Archive
سال: 1971
ISSN: 0009-2347,2157-4936
DOI: 10.1021/cen-v049n035.p001