1,506 research outputs found
On explaining the F-region seasonal anomaly in terms of composition changes in the lower atmosphere
Seasonal anomaly of F-region explained in terms of composition changes in lower atmospher
Geographical Distribution of the Genus \u3ci\u3eMesobuthus\u3c/i\u3e (Scorpiones: Buthidae) in Mongolia
In the present study, we surveyed the diversity of scorpions in six provinces of Mongolia (Bayankhongor, Khovd, Dundgovi, Dornogovi, Govisümber and Ömnögovi) between 2001 and 2012. A total of 385 individuals were collected at 17 different sites. In addition to opportunistic sampling, animals were collected after detection with ultraviolet light. Only species from the genus Mesobuthus have been reported from Mongolia thus far. It was possible to confirm the occurrence of the species Mesobuthus eupeus mongolicus and report the presence of M. martensii martensii for the first time. We could not confirm the presence of M. caucasicus przewalskii and suggest that it does not occur in the country, since earlier records originated from present-day China. We provide initial information on the ecology of the two species we identified. Individuals of M. eupeus mongolicus from western Mongolia have a darker pigmentation of the metasomal segments I-IV than individuals from central or southern Mongolia
Morphological Variation of \u3ci\u3eMesobuthus eupeus mongolicus\u3c/i\u3e (Birula, 1911) (Scorpiones: Buthidae) in Mongolia
In the present study, we investigated morphological variation of Mesobuthus eupeus mongolicus (Birula, 1911) in Mongolia. Samples were collected in 16 sites located in the provinces Bayankhongor, Khovd, Dundgovi, Dornogovi, Govisümber and Ömnögovi. Statistical analyses (Kruska-Wallis one-way ANOVA, PCA and hierarchical cluster analysis) showed that (a) morphologically the M. e. mongolicus males sampled in Dundgovi, Dornogovi, Govisümber and Ömnögovi were similar to each other, while the populations of Bayankhongor and Khovd were differentiated, and (b) the females from Bayankhongor, Dundgovi, Dornogovi, Govisümber and Ömnögovi had a similar morphology, while the population from Khovd was differentiated
Goitre epidemiology; thyroid volume, iodine excretion, thyroglobulin and thyrotropin in Germany and Sweden
Auszüge aus der Pressekonferenz des Arbeitskreises Jodmangel: zur Erörterung der neuen Verordnung über jodiertes Speisesalz und die sich daraus ableitenden Möglichkeiten zur Verbesserung der Jodversorgung in der Bundesrepublik Deutschland.
Beaver Research in the Uvs Nuur Region
In 1985, 1988, and 2002 Castor fiber birulai was introduced to the Tes Gol of the Uvs Nuur basin in North-western Mongolia. The beavers migrated through the Republic of Tyva and settled in the middle part of Tes Gol near the Tyvinian-Mongolian border. About 10 colonies were recorded in this region in 2002. Strict protection of Castor fiber birulai has to be ensured in Mongolia and the Republic of Tyva in future
Inactivation of pollen and other effects of genome-plastome incompatibility in Oenothera
A series of strains of the homozygous species Oenothera grandiflora (characterized by the genome BB and plastome III) were combined with plastome IV from O. parviflora (BC-IV) by means of appropriate crosses. An incompatibility between genome B and plastome IV is expressed in the haplo- and diplophase: (1) B-IV pollen, though normally developed, is largely inactive. The extent of the inactivation varies between different strains and shows a seasonal fluctuation as determined by seed set in outcrossing and selfing experiments. (2) In most of the strains lethality of BB-IV embryos is the rule, leading to empty seeds. This can be ameliorated by including another plastome in the zygotes and developing embryos on account of the biparental plastid transmission in Oenothera. It can best be demonstrated in crosses with a seed parent having normal green plastids of plastome IV and mutated chlorophyll deficient plastids from a different plastome in the pollen parent, leading to variegated progeny as well as a remainder of empty seeds. (3) In about one-half of the strains the BB-IV plants exhibit a temporary bleaching of the virescens type. The incompatibily between genome B and plastome IV does not support the earlier assumption that plastome IV is the ancestor of plastomes II, III, and V. Instead, a precursor plastome is postulated from which plastomes II, III, and IV are descended. While plastome I can be derived from II, only plastome V can be descended from plastome IV.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/41640/1/606_2004_Article_BF00984370.pd
Using multilevel modelling to assess case-mix adjusters in consumers experience surveys in health care
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