Library

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    A New Phase of Sodium Succinate Hexahydrate (1998)
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 54 (1998), S. 578-580 
    Details
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108270197017393
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Occupational rhinitis caused by beech wood dust (1999)
    Copenhagen : Munksgaard International Publishers
    Allergy 54 (1999), S. 0 
    Details
    ISSN: 1398-9995
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1034/j.1398-9995.1999.00940.x
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Hydrocarbon Concentrations in Oysters (Crassostrea virginica) and Recent Sediments from Three Coastal Lagoons in Tabasco, Mexico (1997)
    Springer
    Bulletin of environmental contamination and toxicology 59 (1997), S. 430-437 
    Details
    ISSN: 1432-0800
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001289900496
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Hydrocarbon and Organochlorine Residue Concentrations in Sediments from Bay of Chetumal, Mexico (1998)
    Springer
    Bulletin of environmental contamination and toxicology 61 (1998), S. 80-87 
    Details
    ISSN: 1432-0800
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001289900732
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Study of the interaction between a histidine-deoxyguanosine hybrid and cisplatin (1999)
    Springer
    JBIC 4 (1999), S. 701-707 
    Details
    ISSN: 1432-1327
    Keywords: Key words Histidine ; His-dG nucleopeptide ; Cisplatin ; Anticancer drugs ; Platinum chelates
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology
    Notes: Abstract  A histidine-2′-deoxyguanosine hybrid, Phac-Hse(p5′dG)-His-OH (I), was synthesized, and its reaction with cisplatin was monitored by reversed-phase HPLC and 1H NMR. Two new compounds, II and III, were observed to be simultaneously formed, II in larger proportion than III. These products were isolated after HPLC purification and extensively characterized. Both II and III contained platinum, had the same mass and showed a bathochromic displacement of their absorption maxima with respect to that of I. Both remained undegraded upon enzymatic digestion and yielded I when treated with NaCN. From these data and the information provided by 1H NMR analysis, we inferred that II and III were constitutional isomers, in particular chelates in which platinum was coordinated to the N7 of guanine and either the Nπ or the Nτ imidazole nitrogens, respectively. No preference of the metal for either of these N-donors was observed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s007750050342
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Heavy metals in Antarctic organisms (1997)
    Springer
    Polar biology 17 (1997), S. 131-140 
    Details
    ISSN: 1432-2056
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract  To evaluate levels of essential (zinc and copper) and non-essential (mercury and cadmium) heavy metals, 34 species of organisms from different areas close to the Antarctic Peninsula were analysed. These included algae, filter-feeders, omnivorous invertebrates and vertebrates. Mercury was not detected, while cadmium was found in the majority of organisms analysed (detection limit was 0.05 ppm for both metals). The highest cadmium concentration was observed in the starfish Odontaster validus. Anthozoans, sipunculids and nudibranchs showed maximum levels of zinc, while the highest copper level was found in the gastropod Trophon brevispira. Mercury and cadmium levels in fishes were below the detection limit. Concentrations of essential and non-essential metals in birds were highest in liver followed by muscle and eggs. Cadmium and mercury levels in muscle of southern elephant seals were above the detection limit, whereas in Antarctic fur seals they were below it. The objective of the study was to gather baseline information for metals in Antarctic Ocean biota that may be needed to detect, measure and monitor future environmental changes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003000050115
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Plant regeneration and Agrobacterium-mediated transformation of cotyledon explants of Citrullus colocynthis (L.) Schrad. (1997)
    Springer
    Plant cell reports 16 (1997), S. 888-892 
    Details
    ISSN: 1432-203X
    Keywords: Key words Genetic transformation ; Citrullus colocynthis ; Plant regeneration ; Agrobacterium tumefaciens ; Regeneration
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The effect of 6-benzylaminopurine (6-BA) alone or in combination with naphthaleneacetic acid or indoleacetic acid on the morphogenetic response of cotyledon explants of Citrullus colocynthis (L.) Schrad. was tested. The best results were obtained with a medium containing 25 µm 6-BA, which yielded organogenic calli at a frequency of 81.8%. When these organogenic calli were transferred to elongation medium (basal medium supplemented with 0.5 µm 6-BA), 80% produced well-developed shoots. These shoots rooted normally when cultured on rooting medium containing indolebutyric acid at 2.5 or 5.0 µm. Plants grew to maturity under greenhouse conditions and gave normal fruits. Cotyledon explants were transformed by cocultivation with Agrobacterium tumefaciens LBA4404 carrying the binary vector pBI121 which bears the reporter gene β-glucuronidase (gus) and the marker gene neomycin phosphotransferase (nptII). Transformants were selected for growth capacity on medium with 100 mgl–1 of kanamycin. On the basis of β-glucuronidase expression, the transformation frequency was 14.2%. Molecular characterization by polymerase chain reaction confirmed the presence of the two genes transferred (gus, nptII) in the transgenic plants. Sexual transmission of both genes was also confirmed by studying their expression in progenies from several transgenic plants.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002990050340
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    Neuronal nitric oxide synthase immunoreactivity in the respiratory tract of the frog, Rana temporaria (1995)
    Springer
    Journal of molecular histology 27 (1995), S. 812-818 
    Details
    ISSN: 1573-6865
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Physiological and histochemical studies have recently supported the notion that nitric oxide (NO) is the transduction signal responsible for the non-adrenergic, non-cholinergic relaxation of the vasculature as well as the airways of the mammalian lung. We report the presence of immunoreactivity to NO synthase (NOS) in nerve cell bodies and nerve fibres in the neural plexus of the buccal cavity and lungs of the frog, Rana temporaria, using the indirect immunocytochemical technique of avidin-biotin and the NADPH-diaphorase technique. The neural ganglia located next to the muscle layer and within the connective tissue of the buccal cavity were partially immunoreactive for NOS. In the lungs, NOS immunoreactivity occurred in nerve cell bodies, as well as in both myelinated and unmyelinated nerve fibres. Fine nerve fibres immunoreactive to NOS were observed within the muscle fibre bundles and next to the respiratory epithelium. Both the presence of NOS immunoreactivity and the positive histochemical reaction for NADPH-diaphorase in the neural plexus of amphibian respiratory tract suggests a broad evolutionary role for NO as a peripheral neurotransmitter.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00171760
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Neuronal nitric oxide synthase immunoreactivity in the respiratory tract of the frog,Rana temporaria (1995)
    Springer
    Journal of molecular histology 27 (1995), S. 812-818 
    Details
    ISSN: 1573-6865
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Physiological and histochemical studies have recently supported the notion that nitric oxide (NO) is the transduction signal responsible for the non-adrenergic, non-cholinergic relaxation of the vasculature as well as the airways of the mammalian lung. We report the presence of immunoreactivity to NO synthase (NOS) in nerve cell bodies and nerve fibres in the neural plexus of the buccal cavity and lungs of the frog,Rana temporaria, using the indirect immunocytochemical technique of avidin-biotin and the NADPH-diaphorase technique. The neural ganglia located next to the muscle layer and within the connective tissue of the buccal cavity were partially immunoreactive for NOS. In the lungs, NOS immunoreactivity occurred in nerve cell bodies, as well as in both myelinated and unmyelinated nerve fibres. Fine nerve fibres immunoreactive to NOS were observed within the muscle fibre bundles and next to the respiratory epithelium. Both the presence of NOS immunoreactivity and the positive histochemical reaction for NADPH-diaphorase in the neural plexus of amphibian respiratory tract suggests a broad evolutionary role for NO as a peripheral neurotransmitter.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02388305
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    Morphological changes related to the climateric period of the adult Cuban women (1999)
    Springer
    International journal of anthropology 14 (1999), S. 219-226 
    Details
    ISSN: 1824-3096
    Keywords: Menopause ; Havana ; Anthropometrics ; Body composition ; Discriminant Analysis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The aim of the present study is to analyze the morphologic changes occurring along the period of a woman's life thatareknown as climacterium. Our sample consists of 648 women from different provinces of Cuba, but who lived in Havana for at least 15 years. Morphological variables such as height, weight, biliocristal and biachromial diameters and six subcutaneous fat skinfolds were measured. With regard to the menopausic condition, the sample was divided into three subpopulations: premenopausic, naturally menopausic and surgically menopausic (when the two ovaries had been removed). Age at menopause was calculated by both the “retrospective” (49.45±0.49) and “status quo” (48.83±0.02) methods. The results obtained point towards morphological differences between pre- and postmenopausic women. We observed greater accumulations of fatty tissue in the suprailiac regions of postmenopausal females. Lean body mass represents a bigger fraction of the total body weight in women who are still menstruating. In the case of surgically menopausic women, they are at a mid-distance between the premenopausic and naturally menopausic subpopulations. A discriminant analysis was carried out which confirmed the results previously observed. From this analysis it appeared the body mass index and the subcutaneous skinfolds are the variables that discriminante, that is, separate, the three subsamples.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02447631
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...