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  • 11
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Plant, cell & environment 9 (1986), S. 0 
    ISSN: 1365-3040
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Abstract Breaks and discontinuities in Arrhenius plots of physiological and physical properties of thylakoids are not diagnostic of thermotropic lipid phase transitions of the membrane. Bulk lipid transitions, as first inferred by the membrane phase transition hypothesis, do not occur in any higher plant at chilling temperatures. Solidification of some varying, but always minor, fraction of the total membrane lipid does take place. However, the presence of minor domains of solid thylakoid membrane lipid at chilling temperatures is not unique to chilling sensitive plants but is also found in tolerant species. Minor solidification may in some plants, or groups of plants, be controlled by the specific molecular species of phosphatidylglycerol only recently investigated. In plants containing little, or no, phosphatidylglycerol with this positional distribution of fatty acids, other yet unknown constituents of the membrane must fill a similar function, since DSC thermograms indicate minor solidification also in isolated, unperturbed thylakoids from chilling tolerant species. However, chilling induced phase transitions, or other perturbations, of the thylakoid membrane are not the reason for the chilling lability of net photosynthesis in the intact plant. This conclusion follows from detailed comparison between photosynthetic membranes isolated from prechilled plants and the effects of chilling exposure on CO2 fixation of the whole plant. Damage at the level of the thylakoid membrane does occur, although not to the extent where it can account for the proportionally much larger damage to CO2 fixation.
    Type of Medium: Electronic Resource
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  • 12
    facet.materialart.
    Unknown
    Oxford : Periodicals Archive Online (PAO)
    Medium aevum. 35 (1966) 199 
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  • 13
    facet.materialart.
    Unknown
    Oxford : Periodicals Archive Online (PAO)
    Medium aevum. 38 (1969) 245 
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  • 14
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 223 (1969), S. 1369-1371 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Fig. 1. Polarographic measurements of oxygen consumption of white adipose tissue mitochondria with citrate, isocitrate and 2-oxoglutarate as substrates. Adipose tissue mitochondria (1 mg protein) were suspended in 3 ml. of a medium containing 125 mM KC1, 20 mMZm chloride, #H 7-4, 1-6 mM inorganic ...
    Type of Medium: Electronic Resource
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  • 15
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 214 (1967), S. 247-249 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] There are many well known methods of interpreting data on the excretion of drugs and their metabolites. The author suggests another, and claims that it may be an improvement in some ...
    Type of Medium: Electronic Resource
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  • 16
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 213 (1967), S. 1255-1256 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Creeper chickens, heterozygous for the dominant micro-melia to which the breed owes its name, and normal siblings 12 weeks old were compared by methods described elsewhere3 with respect to the composition of sternum cartilage and long bones in each sex. No differences in the content and type of ...
    Type of Medium: Electronic Resource
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  • 17
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 207 (1965), S. 274-276 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE theoretical and practical aspects of the interaction of drugs with plasma proteins have been considered by Goldstein1, Edsall and Wyman2 and others3-6, and it is generally accepted7 that the 'protein-binding' of a drug in this manner can modify its distribution in the body and therefore ...
    Type of Medium: Electronic Resource
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  • 18
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 207 (1965), S. 959-960 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE classical method of determining the rate of elimination of a drug from the body is to examine the decline of the plasma concentration of the drug with respect to time. I have pointed out1 that this method is only valid when throughout the period of investigation the plasma contains a constant ...
    Type of Medium: Electronic Resource
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  • 19
    Electronic Resource
    Electronic Resource
    Cambridge : Cambridge University Press
    The @journal of African history 10 (1969), S. 15-27 
    ISSN: 0021-8537
    Source: Cambridge Journals Digital Archives
    Topics: History
    Notes: The Chadian Muslim states of Kanem, and later Bornu, have been linked throughout their history to North Africa by an important trade-route across the Sahara, from the Libyan coast to Lake Chad. The popularity and permanence of this route throughout the centuries have been detennined by the economic needs and specialities of the N. African littoral, as well as of the Western Sudan. This route, first controlled by Ibāḍī Muslim Berbers from Zawīla from the eighth to the twelfth centuries, then briefly by the Ayyubids of Cairo, came under the control of Kanem, which was expanding northwards in the thirteenth century. The Fazzān (and Zawīla) then came under the control of Kanem, which seems to have maintained friendly relations with the Hafsid dynasty of Tunis. After the thirteenth century, independent states arose in the Fazzān. Then, after the establishment of an Ottoman Turkish province in Libya, the Turks and the Mais of Bornu were soon in contact, probably from about 1555, and certainly in the time of Mai Idrīs of Bomu (on the throne in 1557–8), as some newly found correspondence from the Ottoman Archives in Istanbul makes clear. There was certainly a friendly association between Bornu and the Turks at this period, if not an actual alliance, as Mai Idrīs hoped to obtain arms and perhaps Turkish troops as well to use against his enemies of the W. Sudan, principally the Hausa state of Kebbi. However, Idris's hopes were deceived, and the Ottoman Sultan Murād III did not provide what was wanted, causing Idrīs to turn to the Sa'dī Sharifian ruler of Fās, Aḥmad al-Manṣūr al-Dhahābī, with a similar request.
    Type of Medium: Electronic Resource
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  • 20
    Electronic Resource
    Electronic Resource
    Cambridge : Cambridge University Press
    The @journal of African history 10 (1969), S. 471-486 
    ISSN: 0021-8537
    Source: Cambridge Journals Digital Archives
    Topics: History
    Notes: Shaykh Uways b. Muḥammad al-Barāwī (1847–1909) was an important leader of the Qādirīya brotherhood in southern Somalia, on Zanzibar, and along the East African coast from Kenya to Mozambique, and founded his own branch of Qādirīya, the Uwaysīya. Before his death in 1909 when he was assassinated by representatives of the rival Sālihīya brotherhood (under the leadership of Muḥammȧd 'Ȧbdallah Hasan, the ‘Mad Mullah’), Uways missionary activities were very considerable.Uways' branch of the Qādiriya was probably behind certain episodes of Muslim resistance to European penetration into Buganda in the late 1880's, at the behest of Sayyid Barghash of Zanzibar. Indeed the relations between Shaykh Uways and successive rulers of Zanzibar, Barghash, Khalīfa, and Ḥamid b. Thuwaynī were very close. In 90's, certain Muslim elements in Tanganyika, in conjunction with the ṭarīqa, made trouble for the Germans in SE Tanganyika during the ‘Mecca Letters affair’ at Lindi in 1908. This episode revealed a division in the Tanganyika Muslim community.The Uwaysīya was responsible for massive conversions to Islam in the coastal region, in inner Tanganyika, and on the Eastern fringes of the Congo at the end of the 19th and the beginning decades of the 20th centuries.
    Type of Medium: Electronic Resource
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