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  • 1
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Chemical Physics 96 (1985), S. 343-348 
    ISSN: 0301-0104
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Neuroradiology 32 (1990), S. 460-463 
    ISSN: 1432-1920
    Keywords: Degenerative spondylolisthesis ; Lumbago ; Intradiscal steroid injection ; Discography ; CT discography
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary In order to study the antepriori etiologic factors of degenerative spondylolisthesis, the discograms and CTD were analyzed and the rate of disc slipping and disc indices were evaluated in 30 cases with degenerative spondylolisthesis. (1) The characteristic S-shaped image which extended from anteroinferior to posterosuperior up to the posterior margin of a vertebral body was observed in 89.7% of slipped discs in lateral discograms. CTD revealed that this image represented a circular splitting in the external and intermediate annulus fibrosus. (2) Discographic degeneration of the discs adjacent to a slipped disc was relatively mild, and their disc indices were not significantly different from those of controls. (3) A negative correlation withr = - 0.434 was found between the slipping rate and the disc index. From these results, it was postulated that the site and direction of the circular splitting in laminae of the annulus fibroses, and the direction of the load applied to an intervertebral disc are important etiologic factors of degenerative spondylolisthesis.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract Mössbauer parameters of tin compounds, Sn(CH3)2H4−n (n=0, 1, 2, 3, 4), isolated in low temperature matrices were related to electronic properties at the tin nuclei obtained by molecular orbital calculations. Structures of novel species, Sn(CH3)2 and Sn(CH3)H, produced via photodissociation of matrix-isolated Sn(CH3)3H and Sn(CH3)2H2, respectively, were determined on the basis of molecular orbital calculations as compared with Mössbauer parameters. The correlations between Mössbauer quadrupole splitting and calculated electric field gradient using STO-3G or MINI-4 were found to depend on the valence of tin atoms because of poor allowance for basis sets in describing highly polar molecules.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Chemistry of materials 5 (1993), S. 1085-1088 
    ISSN: 1520-5002
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1662-9779
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Physics
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Surgical and radiologic anatomy 14 (1992), S. 251-257 
    ISSN: 1279-8517
    Keywords: Length of the large intestine ; Diameter of the large intestine ; Size of the large intestine ; Barium enema examination
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé La longueur, le diamètre et la surface développée de chacun des six segments du colon ont été mesurés sur une série de 920 lavements barytés pratiqués chez des patients Japonais. Le colon transverse est le segment le plus long et le plus étendu en surface, suivi par le colon sigmoïde. Le diamètre du colon ascendant est le plus important, tandis que ceux du colon descendant et du sigmoïde sont les plus étroits. Des différences de taille du colon en fonction du sexe ont été observées. La longueur et la surface de la totalité du colon étaient toutes deux moins importantes chez les hommes que chez les femmes. Les longueurs du caecum, du colon ascendant, du colon transverse et du rectum, sont également moins importantes chez les hommes que chez les femmes. Les diamètres du colon descendant, du colon sigmoïde et du rectum sont plus importants chez les hommes que chez les femmes. La surface développée du colon ascendant et du colon transverse est moins étendue chez les hommes que chez les femmes, tandis que le total des surfaces du colon descendant, du colon sigmoïde et du rectum, est plus important chez les hommes que chez les femmes. La longueur totale du colon tend à augmenter avec l'âge. La longueur et la surface de l'ensemble du colon a également tendance à augmenter chez les femmes avec importance du morphotype.
    Notes: Summary Length, diameter and surface area of each of 6 segments of the large intestine were determined and calculated in 920 Japanese patients who underwent barium enema. Of the length and surface area measurements obtained, those of the transverse colon were the largest, followed by those of the sigmoid colon. The diameter of the ascending colon was the largest, while those of the descending colon and sigmoid colon were the smallest. There were various sex differences in size of the large intestine. Length and surface area of the entire large intestine in males were shorter and smaller respectively than those in females. Lengths of the cecum, ascending colon, transverse colon and rectum in males were shorter than those in females. Diameters of the descending colon, sigmoid colon and rectum in males were larger than those in females. Total surface areas of the ascending colon and transverse colon in males were smaller than those in females, while total surface areas of the descending colon, sigmoid colon and rectum in males were larger than those in females. Length of the entire large intestine tended to be increased with age. Length and surface area of the entire large intestine tended to be increased with an increase in physical dimensions in females.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1432-0428
    Keywords: Keywords MODY ; late-onset Type II diabetes ; transcription factors ; PAX4 ; BETA2/NEUROD1 ; SSCP.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Aims/hypothesis. The identification of mutations in hepatocyte nuclear factors-1α, –4α, –1β and insulin promoter factor-1 in maturity onset diabetes of the young (MODY) has highlighted the role that transcription factors may have in the development of diabetes. This result has focused molecular genetic studies of diabetes on other transcription factors expressed in the pancreatic beta cell. The basic helix-loop-helix transcription factor BETA2/NEUROD1 (gene symbol, NEUROD1) and the paired box homeodomain transcription factor PAX4 (PAX4) have an important role in islet and beta-cell development. We have examined the contribution of these transcription factors to the development of MODY and late-onset Type II (non-insulin-dependent) diabetes mellitus. Methods. Linkage studies have been done in MODY families reported to have no mutations in the five known MODY genes and in affected sibling pairs from families with late-onset Type II diabetes. Mutation screening of the coding regions of both genes was also realised by SSCP followed by sequencing in MODY patients and in probands with late-onset Type II diabetes. Results. There was no evidence of linkage with the markers for NEUROD1 and PAX4 either with MODY or late-onset Type II diabetes. Mutation screening showed single nucleotide polymorphisms, several of which resulted in amino acid substitutions : NEUROD1, Ala45Thr; PAX4, Pro321His and Pro334Ala. These amino acid sequence variants were not associated with Type II diabetes. Conclusion/interpretation. Our results indicate that NEUROD1 and PAX4 are not a common cause of either MODY or late-onset Type II diabetes in the French Caucasian population. [Diabetologia (1999) 42: 480–484]
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1432-0533
    Keywords: Neuronal ceroid-lipofuscinosis ; Membranous cytoplasmic body ; Ultrastructure
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary An autopsy case of adult neuronal ceroid-lipofuscinosis was examined. The clinical picture was charaterized by gait disturbance, bulbar palsy and dementia. Histopathologically, diffuse neuronal loss was found throughout the central nervous system. The remaining neurons, predominantly in the motor nuclei of the spinal cord and brain stem, were swollen with storage material. Observed under the electron microscope the storage material showed various ultrastructures, such as lipofuscin-like bodies, pleomorphic lipid bodies, curvilinear profiles and finger-print profiles, in different regions of the central nervous system. In the ballooned neurons of the spinal anterior horn, many membranous cytoplasmic bodies and curvilinear profiles were intermingled within the same cell and were continuous with each other. Biochemically,N-acetyl neuraminic acid content was significantly increased in the spinal anterior horn. These findings suggest the localized increase of ganglioside in that region.
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 1432-0509
    Keywords: Key words: Congenital extrahepatic portocaval shunt—Dubin–Johnson syndrome—Hyperplastic nodule—Hypoplasia of the portal vein.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We report a rare case of congenital extrahepatic portocaval shunt diagnosed during evaluation of hyperplastic nodules in the liver. Diagnostic imagings showed hypoplasia of the intrahepatic portal venous system and splanchnic portal venous return to the inferior vena cava through aberrant vessels. Altered hepatic blood flow dynamics due to this shunt may have been implicated in the etiology of the hepatic hyperplastic nodules. RID="" ID="" 〈E5〉Correspondence to:〈/E5〉 H. Yonemitsu
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract  Using the number of segments of pleopod rami as a marker of instar number, the population structure (instar composition) of the mesopelagic gammarid amphipod Cyphocaris challengeri was investigated by monthly samplings from May 1997 to April 1999 at a station off southwest Hokkaido, Japan. Laboratory-rearing experiments were also conducted to establish the relationship between the number of segments of pleopod rami and instar number, and to estimate the growth pattern of this gammarid based on the intermolt period and molt-increment data. Stratified sampling in the field (0 to 200 and 200 to 400 m depth strata) showed this species occurred mainly at 200 to 400 m depth during the day. Instar analysis indicated that C. challengeri has 12 instars in females and 11 instars in males. Based on observations of secondary sexual characters, Instars 1 to 6 were designated juveniles (Instars 1 to 3 occurred in the marsupia of gravid females); in males, 7 to 9 were immature and 10 and 11 were mature, while in females 7 and 8 were immature and 9 to 12 were mature. Off southwest Hokkaido, Instar 4 (just released from a female's marsupium) was found throughout the year, with a peak abundance occurring in April to July of each year. A sequential development of Instar 4 to 9 (youngest adult instar) through the year was observed. Generation length (i.e. the time required to grow from Instar 4 to 10) was estimated from a laboratory-obtained growth curve to be 216 to 584 d at the in situ temperature range (2 to 5 °C), which is consistent with observations on field populations. Specimens older than Instar 9 were rare in the field and could not be used in laboratory-rearing experiments, so longevity could not be estimated. Eggs were oval and measured 0.6 mm (large diameter). Brood size ranged from 20 to 65. Comparing the present results with those of epipelagic hyperiid amphipods, the nearly identical growth rates together with the production of fewer but larger eggs seen in C. challengeri appear to reflect to the typical life mode of deep-living pelagic crustaceans.
    Type of Medium: Electronic Resource
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