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  • 1
    Electronic Resource
    Electronic Resource
    Oxygen availability from the blood and the effect of phosphate replacement on erythrocyte 2,3-diphosphoglycerate and haemoglobin-oxygen affinity in diabetic ketoacidosis (1978)
    Springer
    Diabetologia 15 (1978), S. 381-385 
    Details
    ISSN: 1432-0428
    Keywords: Diabetic ketoacidosis ; phosphate ; erythrocyte ; 2,3-diphosphoglycerate ; haemoglobin-oxygen affinity ; oxygen availability
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Eleven patients with diabetic ketoacidosis were given intravenous phosphate in doses (mean 118 mmol; range 83–320 mmol) adequate to maintain normal plasma phosphate, in addition to a standard treatment regime. Prevention of hypophosphataemia stimulated recovery of the initially low red-cell 2,3-diphosphoglycerate concentrations (10.6 ±5.8 (SD) μmol/g Hb) after twenty-four hours. In ten control patients (initial concentration 8.1±4.4 μmol/g Hb) treated without phosphate replacement, significantly lower red-cell 2,3-diphosphoglycerate concentrations were found between 2 and 6 days after admission (forty-eight hour value for control patients 14.6±1.6 and for phosphate-treated patients 18.9±4.1 μmol/g Hb; p〈0.01). However, no effect onin vivo p 50 or on the availability of oxygen from the blood resulted from the higher 2,3-diphosphoglycerate levels. Maintenance of normal plasma phosphate levels by intravenous phosphate is, therefore, not indicated to improve tissue oxygenation in diabetic ketoacidosis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01219647
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  • 2
    Electronic Resource
    Electronic Resource
    A randomised controlled trial of the effect of low fat diet advice on dietary response in insulin independent diabetic women (1981)
    Springer
    Diabetologia 21 (1981), S. 529-533 
    Details
    ISSN: 1432-0428
    Keywords: Type 2 (insulin independent) diabetic women ; low fat diets ; diabetic control ; cardiovascular risk factors
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Type 2 (insulin independent) diabetic women were randomly allocated to receive advice for low fat diets or low carbohydrate diets. By 24 h weighed dietary intakes before and after a mean interval of six months, patients in the low fat group had reduced their fat intake from 41% to 31% of total energy, while carbohydrate percentage of total energy intake increased from 38% to 46%. Percentage energy intake from fat and carbohydrate in the control group remained unchanged. Body weight fell in both groups, especially for patients in the low fat group who were obese (weight/height2 ⩾ 28 kg/m2). Mean plasma glucose, HbA1, and triglycerides were unchanged. Mean plasma total cholesterol fell significantly in the low fat group compared with the controls (p 〈 0.001), but there was no significant difference in the small reduction of high density lipoprotein cholesterol observed in both groups. Thus, adherence to low fat diets occurred without deterioration of diabetes and with benefit for weight and total cholesterol.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00281543
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  • 3
    Electronic Resource
    Electronic Resource
    EXAFS spectroscopy, from one perspective (1984)
    Springer
    Il nuovo cimento della Società Italiana di Fisica 3 (1984), S. 803-815 
    Details
    ISSN: 0392-6737
    Keywords: X-ray determination of structures ; Other interactions of matter with particles and radiation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Description / Table of Contents: Riassunto È dimostrato che la spettroscopia ad assorbimento di raggi X a struttura fine (EXAFS) è il mezzo di ricerca piú utile delle correlazioni interatomiche a corto raggio in una grande varietà di materiali. La teoria dell'EXAFS è presentata nella sua forma piú semplice per fornire la base per una discussione riguardo al tipo e alla qualità dell'informazione che può essere estratta dai dati EXAFS. Si esamina l'adeguatezza di molte delle approssimazioni comunemente incorporate in questa teoria con enfasi su quelle parti della teoria che sono piú direttamente in relazione con l'analisi dei dati EXAFS.
    Abstract: Резюме Показывается, что спектроскопия EXAFS представляет наиболее удобный зонд для исследования короткодействующих междуатомных корреляций в широком классе материалов. Предлагается простейшая форма теории EXAFS, которая дает основу для обсуждения вида и качества структурной информации, получаемой из EXAFS данных. Исследуется адекватность некоторых приближений, обычно используемых в этой теории. Особое внимание уделяется тем аспектам теории, которые имеют прямое отношение к анализу EXAFS данных.
    Notes: Summary Extended X-ray absorption fine-structure (EXAFS) spectroscopy has been demonstrated to be a most useful probe of short-range interatomic correlations in a wide variety of materials. The theory of the EXAFS is presented in its simplest form so as to provide the basis for a discussion about the kind and quality of the structural information which can be extracted from EXAFS data. The adequacy of several of the approximations commonly incorporated in this theory is examined with emphasis on those areas of the theory which bear most directly on the analysis of EXAFS data.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02457084
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  • 4
    Electronic Resource
    Electronic Resource
    Analysis of EXAFS data inr space (1984)
    Springer
    Il nuovo cimento della Società Italiana di Fisica 3 (1984), S. 816-824 
    Details
    ISSN: 0392-6737
    Keywords: X-ray determination of structures ; Other interactions of matter with particles and radiation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Description / Table of Contents: Riassunto Le procedure richieste nell'analisi dei dati dell'assorbimento esteso dei raggi X a struttura fine (EXAFS) nello spazior sono esaminati nei dettagli, con riferimento ad operazioni confrontabili nello spaziok dove appropriate. Poiché ogni operazione in uno spazio ha il suo esatto equivalente nell'altro, la scelta tra spazior ek si rivela di una convenienza relative nelle particolari circostanze di ogni applicazione. Siidentificano alcune difficoltà potenziali.
    Abstract: Резюме Подробно исследуются методы анализа EXAFS данных вr пространстве. Проводится сравнение с соответствующими операциями вk пространстве. Так как каждая операция в одном пространстве имеет эквивалент в другом пространстве, то выбор междуr иk пространствами определяется критериями удобства. Обсуждаются потенциальные трудности.
    Notes: Summary The procedures required in the analysis of extended X-ray absorption fine-structure (EXAFS) data inr space are examined in some detail with reference to comparable operations ink space where appropriate. Since each operation in one space has its exact equivalent in the other, the choice betweenr andk space turns on relative convenience in the particular circumstances of each application. Some potential difficulties are identified.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02457085
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  • 5
    Electronic Resource
    Electronic Resource
    Comment on "In-Situ X-ray Studies of the Underpotential Deposition of Copper on Platinum(111)" (1994)
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 98 (1994), S. 11236-11236 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/j100094a037
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  • 6
    Electronic Resource
    Electronic Resource
    New technique to enable measurement of the x-ray absorption spectra of single crystals (1994)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 65 (1994), S. 3389-3392 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: X-ray absorption spectroscopy measurements of single-crystal samples have not been possible due to the appearance of diffraction features in the spectra. To deal with this problem a unique magnetically driven sample oscillator has been designed and built. Its effectiveness in enabling x-ray absorption spectroscopy studies of single crystals is demonstrated. Furthermore, it is compatible with a cryogenic environment in size, mass, and principle of operation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1144511
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  • 7
    Electronic Resource
    Electronic Resource
    Combining x-ray and optical spectroscopies in the study of dilute semiconductor nanoparticle composites (2000)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 87 (2000), S. 3850-3857 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We discuss a methodology for the cooperative analysis of optical and x-ray spectroscopies to deduce the thermophysical properties of dilute suspensions of semiconductor nanoparticles in a wide band gap host. X-ray spectroscopy is used to determine concentration and bonding of selected elements. Resonant Raman spectroscopy establishes limits on composition and strain in particles. Analysis of optical absorption, with constraints provided by x-ray and Raman measurements, yields the particle size distribution and concentration. As an example of this approach, we study borosilicate glasses doped with ∼0.1 wt% CdS and heat treated to produce nanoparticles. © 2000 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.372424
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  • 8
    Electronic Resource
    Electronic Resource
    Capillary-based x-ray collector/collimator for diffraction applications (1993)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 62 (1993), S. 2905-2907 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: We describe and characterize a new x-ray optical system in which x rays are steered using multiple reflections within hollow glass capillary tubes. The prototype beam-shaping collector/collimator evaluated for diffraction with CuKα x rays in this letter has throughput of 6% and increases the useful x-ray flux by more than a factor of 4 above that of slit collimation with comparable divergence.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.109192
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  • 9
    Electronic Resource
    Electronic Resource
    Growth and dissolution of CdS nanoparticles in glass (1999)
    Chester : International Union of Crystallography (IUCr)
    Journal of synchrotron radiation 6 (1999), S. 495-496 
    Details
    ISSN: 1600-5775
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0909049599001259
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  • 10
    Electronic Resource
    Electronic Resource
    The effects of glucose-dependent insulinotropic polypeptide infused at physiological concentrations in normal subjects and Type 2 (non-insulin-dependent) diabetic patients on glucose tolerance and B-cell secretion (1987)
    Springer
    Diabetologia 30 (1987), S. 707-712 
    Details
    ISSN: 1432-0428
    Keywords: Glucose ; insulin ; C-peptide ; glucose dependent insulinotropic polypeptide ; normal subjects ; Type 2 diabetic patients
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The effects of porcine glucose-dependent insulinotropic polypeptide given by continuous intravenous infusion in normal subjects (n=6) and Type 2 (non-insulin-dependent) diabetic patients (n=6) have been investigated. The subjects were studied on 2 separate days after overnight fasts. On each day 25 g of glucose was infused from 0–30 min plus an infusion of either porcine glucose-dependent insulinotropic polypeptide (0.75 pmol·kg−1·min−1) or control solution. During the glucose-dependent insulinotropic polypeptide infusion plasma glucose values were reduced in normal subjects from 30–60 min (p〈0.01) and in Type 2 diabetic patients at 45 and 60 min (p〈0.05). In the normal subjects insulin concentrations were greater from 10–35 min (p〈0.01) following glucose-dependent insulinotropic polypeptide infusion and peak values were increased by 123%. In the Type 2 diabetic patients following glucose-dependent insulinotropic polypeptide infusion insulin levels were increased from 4–40 min (p〈0.01) but peak values were only increased by 27%. In the normal subjects C-peptide values were greater from 25–45 min (p〈0.01) following glucose-dependent insulinotropic polypeptide infusion and peak C-peptide levels were increased by 82%. In the Type 2 diabetic patients following the glucose-dependent insulinotropic polypeptide infusion C-peptide levels were increased from 6–55 min (p〈0.01) and peak values were increased by 20%. Plasma glucose-dependent insulinotropic polypeptide levels were within the physiological post prandial range during the glucose-dependent insulinotropic polypeptide infusion. Glucose-dependent insulinotropic polypeptide is insulinotropic in normal subjects and Type 2 diabetic patients at physiological concentrations and results in improved glucose tolerance. This insulinotropic effect is less marked in the diabetic patients and may represent insensitivity of the B cell to glucose-dependent insulinotropic polypeptide.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00296993
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