ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

feed icon rss

Your email was sent successfully. Check your inbox.

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

Proceed reservation?

Export
  • 11
    Electronic Resource
    Electronic Resource
    Springer
    Aequationes mathematicae 15 (1977), S. 49-54 
    ISSN: 1420-8903
    Keywords: Primary 06A10, 05C20 ; Secondary 68A25
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Résumé La famille des préordres sur un ensemble fixé constitue un treillis pour l'inclusion. Répondant à une question rencontrée par S. Eilenberg dans l'étude des automates non déterministes on établit une propriété des chaînes maximales de préordres sur un ensemble fini. On en déduit que si l'ensemble a n éléments, de telles chaînes contiennent au plus [n(n + 1)]/2 préordres.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 12
    ISSN: 1432-0827
    Keywords: Key words: Calcium supplementation — Mineral water — Postmenopausal bone loss.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine , Physics
    Notes: Abstract. It is generally agreed that an adequate calcium intake is necessary for the maintenance of bone health and that calcium supplementation reduces the rate of bone loss in postmenopausal women. Mineral waters are calorie free, and some, with relatively high calcium levels, might be significant sources of calcium. We studied the effect of mineral water in 45 early postmenopausal women randomly assigned to receive a high-calcium (Ferrarelle, Italy) or a low-calcium mineral water. On the basis of the dietary regimen, women were divided in two clusters (A = 23 subjects, B = 22 subjects) significantly different only for calcium intake (CI) and for dietary consumption of calories (energy). At the end of the study period (13 ± 1 months), bone mineral density at the distal radius showed a significant decrease (P 〈 0.001) only in cluster with low CI. The difference between the clusters was significant (P 〈 0.05). Furthermore, the cluster with high CI showed a significant (P 〈 0.05) reduction in osteocalcin serum levels after 3 months. This study provides further evidence to support the use of a high calcium mineral water as an effective prophylaxis against postmenopausal bone loss.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 13
    ISSN: 1432-203X
    Keywords: axillary buds ; callus ; Colocasia esculenta var. esculenta ; plant regeneration taro corm extract
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Axillary buds of taro (Colocasia esculenta var. esculenta, Araceae) cultured on half strength Murashige-Skoog medium (HMS) containing taro extract (HMSTE) and 2, 4, 5-trichlorophenoxyacetic acid produce a compact, hard, slow growing callus which is not very active morphogenetically and produces only a few plantlets. When cultured on HMSTE plus 5 mg 1−1 each of naphthaleneacetic acid and benzyl adenine (HMSNB) the buds produce a fast growing, friable and morphogenetically active callus. Meristematic regions form on the friable callus after 30 days on HMSNB. If transferred to HMSTE at this point the callus gives rise to plantlets. Addition of taro extract to the media is required for the culture of buds, induction of callus and plantlet regeneration.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 14
    ISSN: 1573-5044
    Keywords: antibiotics ; bactericides ; contamination ; fungicides ; in vitro ; orchids ; shoot tip ; seed germination ; tissue culture
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Amphotericin B, benomyl, gentamycin, nystatin, quintozene penicillin G, sodium omadine, and vancomycin singly and in several combinations have no deleterious effects on the germination of orchid seeds, but inhibit the growth in vitro of shoot tip explants.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...