scholarly journals Isolation of leucogenenol from bovine and human liver

1970 ◽  
Vol 116 (4) ◽  
pp. 709-711 ◽  
Author(s):  
F. A. H. Rice ◽  
Badaruddin Shaikh

A compound has been isolated from both bovine and human liver that on intravenous or intraperitoneal injection into animals induces in 4–12h an increase in the number of peripheral neutrophils, and in 12–24h an increase in the number of peripheral lymphocytes. At 24h after injection there is also a two- to three-fold increase in the relative number of myeloblasts in the bone marrow. The procedure for isolation and the physical and chemical properties identify the compound as leucogenenol, isolated from the metabolic products of Penicillium gilmanii by Rice (1966).

2004 ◽  
Vol 55 (5) ◽  
pp. 499 ◽  
Author(s):  
Terrie L. Finston

The giant ostracods Mytilocypris occupy temporary saline habitats in Australia and experience physical and chemical heterogeneity in association with evaporation. Three sympatric species, namely M. mytiloides, M. tasmanica chapmani, and M. minuta, show high genetic similarity and morphological boundaries that overlap. The large elongate, intermediate, and small blunt shells of the three species are associated with lakes of low, intermediate, and high salinity, respectively. The present study investigated whether all three phenotypes were produced through time in single habitats experiencing seasonal changes in physical and chemical properties. Three lakes at one site (Coorow) were temporally heterogeneous, showing a nearly 10-fold increase in salinity in a single season, whereas four lakes at a second site (Rottnest Island) were more or less permanent and showed less environmental variation. Successive generations in the lakes from Coorow became smaller and blunter in association with environmental changes, showing the range of phenotypes displayed in the three presumptive taxa. There was less phenotypic response in individuals from Rottnest Island, reflecting the relative homogeneity of the lakes. Possible mechanisms underlying the observed changes include phenotypic plasticity, genotype replacement, and strong selection.


1966 ◽  
Vol 24 ◽  
pp. 101-110
Author(s):  
W. Iwanowska

In connection with the spectrophotometric study of population-type characteristics of various kinds of stars, a statistical analysis of kinematical and distribution parameters of the same stars is performed at the Toruń Observatory. This has a twofold purpose: first, to provide a practical guide in selecting stars for observing programmes, second, to contribute to the understanding of relations existing between the physical and chemical properties of stars and their kinematics and distribution in the Galaxy.


2017 ◽  
pp. 31-43
Author(s):  
Berta Ratilla ◽  
Loreme Cagande ◽  
Othello Capuno

Organic farming is one of the management strategies that improve productivity of marginal uplands. The study aimed to: (1) evaluate effects of various organic-based fertilizers on the growth and yield of corn; (2) determine the appropriate combination for optimum yield; and (3) assess changes on the soil physical and chemical properties. Experiment was laid out in Randomized Complete Block Design, with 3 replications and 7 treatments, namely; T0=(0-0-0); T1=1t ha-1 Evans + 45-30-30kg N, P2O5, K2O ha-1; T2=t ha-1 Wellgrow + 45-30-30kg N, P2O5, K2O ha-1; T3=15t ha-1 chicken dung; T4=10t ha-1 chicken dung + 45-30-30kg N, P2O5, K2O ha-1; T5=15t ha-1 Vermicast; and T6=10t ha-1 Vermicast + 45-30-30kg N, P2O5, K2O ha-1. Application of organic-based fertilizers with or without inorganic fertilizers promoted growth of corn than the control. But due to high infestation of corn silk beetle(Monolepta bifasciata Horns), its grain yield was greatly affected. In the second cropping, except for Evans, any of these fertilizers applied alone or combined with 45-30-30kg N, P2O5, K2O ha-1 appeared appropriate in increasing corn earyield. Soil physical and chemical properties changed with addition of organic fertilizers. While bulk density decreased irrespective of treatments, pH, total N, available P and exchangeable K generally increased more with chicken dung application.


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