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  • habitat segregation  (2)
  • Children  (1)
  • Chloranthus  (1)
  • 1
    ISSN: 1438-8359
    Keywords: Open-heart surgery ; Simple deep hypothermia ; Blood transfusion ; Children
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Purpose To investigate the hematological changes during the perioperative period of open-heart surgery without homologous blood transfusion under simple deep hypothermia in infants and small children, and to define the limits of body weight for open-heart surgery without homologous blood transfusion under simple deep hypothermia. Methods We performed open-heart surgery without homologous blood transfusion under simple deep hypothermia on eight children, four infants, and a neonate with diagnoses of atrial septal defect, ventricular septal defect, on total anomalous pulmonary venous return (TATVR). All patients except for one with TAPVR were surface-cooled with ice water under deep ether anesthesia. Hematological examinations were performed seven times during the perioperative period. Results The body weight of the patients ranged from 2.5 to 15.0 kg (mean±SD, 9.5±3.5 kg) and the blood loss from 0.7 to 7.1g·kg−1 (4.6±2.0g·kg−1) The lowest values of the hematological findings in each case after surgery were as follows: Hb ranged from 7.6 to 10.9g·dl−1 (8.8±1.0g·dl−1), blood platelet count from 158×103 to 337×103 cells·µℓ−1-agonist (271±88 ×103 cells·µℓ−1-agonist, and total protein from 4.3 to 5.5 g·dl−1 (5.0±0.4g·dl−1) Conclusion Severe anemia and hypoproteinemia were not detected in any case, and, in particular, the reduction of the platelet count was slight. No events occurred as a result of decreased Hb concentration, serum protein, or both.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1615-6110
    Keywords: Angiosperms ; Ranunculaceae ; Ranunculus cantoniensis ; R. chinensis ; R. silerifolius ; Amphidiploid ; aneuploid induction ; cytotaxonomy ; fertility ; habitat segregation ; hybrid ; multivalent ; speciation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Cytogenetical studies were carried out on the successive generations of offsprings from the induced tetraploid hybrid (2n = 32) betweenRanunculus silerifolius (2n = 16) andR. chinensis (2n = 16). Aneuploids, 2n = 30 to 35, frequently occurred. In latter subsequent generations the deviation of aneuploids increased, but the proportion of euploids decreased, accompanied by the reduction of fertility of pollen grains and seed sets. F2 and F4 PMCs constantly exhibited meiotic abnormality, i.e. formation of quadrivalents and univalents. The speciation process ofR. cantoniensis (2n = 32), which was presumed to arise from tetraploid hybrids between the above two species, is discussed on the basis of the above evidences.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Plant systematics and evolution 195 (1995), S. 177-185 
    ISSN: 1615-6110
    Keywords: Magnoliidae ; Chloranthaceae ; Ascarina ; Chloranthus ; Hedyosmum ; Sarcandra ; Chromosome numbers ; karyomorphology ; phylogeny
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Karyological observations on 7 species and 2 varieties of 4 genera belonging to theChloranthaceae demonstrate the presence of three basic chromosome numbers within the family, i.e., x = 8 (Hedyosmum), 13 (Ascarina) and 15 (Chloranthus, Sarcandra). The karyomorphology ofChloranthus andAscarina is similar, whereasSarcandra andHedyosmum display unique characteristics. Both karyological aspects, i.e., chromosome number and karyomorphology, demonstrate remarkable diversity ofChloranthaceae and complex relationships between its genera. A distant affinity betweenChloranthaceae andPiperales is suggested.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Plant systematics and evolution 169 (1990), S. 55-63 
    ISSN: 1615-6110
    Keywords: Angiosperms ; Gesneriaceae ; Monophyllaea ; M. hirtella ; M. horsfieldii ; Chromosome number ; hybridization ; fertility ; tropical rain forest ; habitat segregation ; Flora of Indonesia ; Sumatra
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A natural hybrid (2n = 21) between the parapatric rain forest speciesMonophyllaea hirtella (2n = 20) andM. horsfieldii (2n = 22) (Gesneriaceae) has been observed at Sg. Lubuk Paraku, Padang, W. Sumatra. The hybrids showed intermediary characters between the parental species in the inflorescence structure, flower size and colour, indumentum, chromosome numbers, and habitat. The 29% pollen fertility of a single hybrid specimen suggests that the genetical isolation between the parental species may break down and reproduction over subsequent generations may occur.
    Type of Medium: Electronic Resource
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