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  • 2005-2009  (2)
  • 1975-1979  (22)
  • 1935-1939  (3)
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  • 1
    Electronic Resource
    Electronic Resource
    Acid hydrolases and their Release in Food Vacuole-Less Mutants of Tetrahymena thermophila (1979)
    Oxford, UK : Blackwell Publishing Ltd
    The @journal of eukaryotic microbiology 26 (1979), S. 0 
    Details
    ISSN: 1550-7408
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: SYNOPSIS. Mutants (NP1 and PSJ5) of Tetrahymena thermophila strains B and D 1968 exist that are unable to construct a functional oral apparatus and form food vacuoles at 37 C but which do so normally at 30 C. Food vacuole-less cells starved in dilute salt solution released similar amounts of acid phosphatase, β-N-acetyl-glucosaminidase and ±-glucosidase activity into the medium as wildtype cells during an 8-h period. Actively growing, food vacuole-less cells had ˜50% less total protein, acid phosphatase, β-N-acetyl-glucosamin-idase, and ±-glucosidase per cell than wildtype cells after 72-h growth. During this time food vacuole-less cells released significant amounts of the 3 acid hydrolases into the growth medium. For each hydrolase, the total activity released from growing, food vacuole-less cells was less, on a per cell basis, than the amount released from food vacuole formers. The proportion of the total activity secreted by the mutant and the wildtype cells was the same for acid phosphatase and β-N-acetyl-glucosaminidase and somewhat lower for ±-glucosidase. It is concluded that the release of a significant amount of acid hydrolase activity from Tetrahymena is independent of food vacuole formation and may be analogous to the secretory activity of other nonphagocytic eukaryotic cells.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1550-7408.1979.tb04664.x
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    TOWARD A REALIZATION OF PSYCHOLINGUISTIC PRINCIPLES IN THE ESL READING CLASS (1977)
    Oxford, UK : Blackwell Publishing Ltd
    Language learning 27 (1977), S. 0 
    Details
    ISSN: 1467-9922
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Linguistics and Literary Studies , Psychology
    Notes: This article is an attempt to utilize psycholinguistic research to develop a framework for the teaching of reading to second language (L2) learners. The first section highlights current psycholinguistic reading theory and develops goals for L2 reading teachers based on this theory. The proficient reader is viewed as an active, information-processing individual who uses a minimum number of clues to extract the author's message from the page. It becomes the responsibility of teachers to train students to determine their own goals and strategies for a particular reading, to give students practice and encouragement in using a minimum number of syntactic and semantic clues to obtain the maximum amount of information, and to encourage students to take risks, to guess, and to ignore their impulses to be always correct. In an attempt to translate theory into practice, the second section of the article explores the implications of a psycholinguistic perspective for the learning environment, teacher behavior, and the preparation and use of L2 reading materials. The optimum learning environment is viewed as one in which students and teachers work together: teacher intervention is minimized as students are encouraged to use their developing skills to solve reading problems on their own. Materials development is viewed as being composed of the development of reading skills exercises (scanning, skimming, reading for thorough comprehension, and critical reading) and the development of language skills exercises (vocabulary, structure, and discourse). The third section of the article discusses lesson planning within a psycholinguistic framework and presents a sample lesson plan in English as a second language which emphasizes a skills approach to reading. Lessons are planned for maximum flexibility, allowing the teacher to take advantage of students' interests and needs.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1467-1770.1977.tb00297.x
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Integration of Theory and Laboratory Experimentation in Self-Instructional Electronics Courses (1978)
    Oxford, UK : Blackwell Publishing Ltd
    British journal of educational technology 9 (1978), S. 0 
    Details
    ISSN: 1467-8535
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Education
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1467-8535.1978.tb00362.x
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Allosteric interactions between the membrane-bound acetylcholine receptor and chemical mediators. Kinetic studies (1977)
    s.l. : American Chemical Society
    Biochemistry 16 (1977), S. 684-692 
    Details
    ISSN: 1520-4995
    Source: ACS Legacy Archives
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/bi00623a020
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Investigation of immunological relationships among myosin light chains and troponin C (1977)
    s.l. : American Chemical Society
    Biochemistry 16 (1977), S. 4403-4408 
    Details
    ISSN: 1520-4995
    Source: ACS Legacy Archives
    Topics: Biology , Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/bi00639a012
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Stimulation through electrodes implanted near the subthalamic nucleus activates projections to motor areas of cerebral cortex in patients with Parkinson's disease (2005)
    Oxford, UK : Blackwell Science Ltd
    European journal of neuroscience 21 (2005), S. 0 
    Details
    ISSN: 1460-9568
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: High-frequency electrical stimulation through electrodes implanted in the subthalamic nucleus (STN) has been shown to reduce significantly the cardinal symptoms of Parkinson's disease (PD). Despite the success of this treatment, the mechanisms of action of stimulation are poorly understood. To elucidate further the mechanisms of action of deep brain stimulation and its effects on cortical activity, we recorded electroencephalographic potentials from 61 scalp-surface electrodes during low-frequency (5–10 Hz) bipolar stimulation in 11 patients with advanced PD (14 implanted electrodes were tested). In all electrodes tested, stimulation through at least one of the four contacts produced a medium-latency waveform with an average onset of 14 ± 3 ms and peak at 23 ± 4 ms. This potential typically increased in magnitude across contacts from ventral to dorsal. Within-subject comparisons of median nerve somatosensory evoked potentials demonstrated that the generator of the medium-latency potential was within the primary sensorimotor cortex or lateral premotor cortex ipsilateral to stimulation. The timing and topography of this potential were consistent with indirect activation of the cortex by excitation of pallido-thalamic axons that traverse the dorsal aspect of the STN. The potential evoked by stimulation through the contact used for optimal clinical effect was highly variable across electrodes and frequently different from the medium-latency potential described above, suggesting that the neuronal elements mediating the medium-latency potential were different from those that mediate the clinical effects.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1460-9568.2005.03952.x
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    IRRADIATION OF ONION POWDER: EFFECT ON MICROBIOLOGY (1979)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 44 (1979), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Increasing dosages of gamma radiation from Cobalt-60 source resulted in an almost linear reduction of the Aerobic Plate Counts (APC) in onion powder. An average minimum exposure of 900 K-rads was chosen to achieve reduction in counts to below 25,000 per gram even for powders with high initial counts. Treatment was equally effective in powders of different qualities. Powder in commercial packs (55 gal drums or 5 0-1b bag-in-box) showed the expected reduction in counts; in addition, further significant reductions in counts occurred over a 12-month storage period. After the initial irradiation treatment coliforms, yeasts and molds were no longer detected.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1979.tb03425.x
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  • 8
    Electronic Resource
    Electronic Resource
    IRRADIATION OF ONION POWDER: EFFECTS ON TASTE AND AROMA CHARACTERISTICS (1979)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 44 (1979), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Onion powder in commercial bulk containers was irradiated with a minimum average gamma radiation (60CO) dosage of 900 Krads. Taste and flavor evaluation by a modified profile method failed to show statistically significant differences immediately after treatment or during 12 month storage. A sample irradiated with an excess dosage of 27,000 Krads showed some changes from raw toward cooked onion characteristics but no abnormal characteristics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1979.tb03424.x
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  • 9
    Electronic Resource
    Electronic Resource
    FACTORS AFFECTING THE AUTOXIDATION OF LIPIDS IN MECHANICALLY DEBONED FISH (1978)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 43 (1978), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Hemoglobin, myoglobin, total heme pigments, and nonheme iron concentrations were measured in phosphate buffer (pH 7.1) extracts of mechanical and hand deboned mullet, Mugil cephalus, to determine the factors which induce a greater prooxidant activity in mechanically deboned fish. Mechanical deboning increased the hemoglobin and nonheme iron contents but had very little influence on the amount of myoglobin in the deboned fish flesh. Oxygen uptake studies using oleic acid as a substrate revealed that the hemoprotein content had an influence on the prooxidant activity of the buffer extracts of the deboned fish. Studies using purified myoglobin and hemoglobin as prooxidants indicated that myoglobin had a greater catalytic effect than hemoglobin on the oxidation of oleic acid. It was concluded that, in addition to the concentration of total heme pigments, the hemoglobin to myoglobin ratio should be considered when determining the influence of hemoproteins on the oxidative stability of deboned fish.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1978.tb02413.x
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  • 10
    Electronic Resource
    Electronic Resource
    MULTIPLE SCLEROSIS (1979)
    Oxford, UK : Blackwell Publishing Ltd
    International journal of dermatology 18 (1979), S. 0 
    Details
    ISSN: 1365-4632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-4362.1979.tb01919.x
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