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Effect of temperature and interspecific competition on populaiton dynamics and sexual reproduction of Daphnia magna
Under isolated and mixed cultures of Daphnia magna and Simocephalus vetulus,the effect of temperature and interspeific competition on populaiton dynamics and sexual reproduction of D. magna wasExpand
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Histology of Ovary Development in Macrobrachium asperulum
Using histological sections, this paper studied the histology of oogenesis and ovarian development in M.asperulum. According to the size and morphology of cells, nuclei and nucleoli and the vitellineExpand
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Aqueous Organometallic Chemistry
In this paper the recent developments in the new field of the organometallic chemistry in aqueous media using tin, zinc or bismuth are reviewed. The Barbier-type reactions in aqueous media have beenExpand
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Histology of the Testis Development in Macrobrachium asperulum
Histology of the testis development of M. asperulum has been studied with light microscopy. According to the quantity and forming sequence of spermatogenetic cells, and the shape and structuralExpand
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A LARGE APERTURE PERMANENT MAGNET FARADAY ROTATOR
A 40mm diameter large aperture permanent magnet Faraday rotator of 154mm×154mm×240mm overall size and about 30kg in weight has been developed. The uniformity of the beam polarization plane ofExpand
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THE MORPHOLOGICAL AND ULTRASTRUCTRAL STUDY OF THE SPERM BALL OF FRESHWATER MUSSEL,CRISTARIA PLICATA
The morphology and ultrastructure of the sperm ball of Cristaria Plicata was studied under light and electron microscope. The results show that the sperm ball is spherical,which is about 65—70 μm inExpand
EFFECT OF TEMPERATURE AND CULTURE VOLUME ON POPULATION DYNAMIC AND SEXUAL REPRODUCTION OF DAPHNIA MAGNA STRAUS
Under two temperatures(20℃ and 25℃)and five culture volumes(50,100,200,400 and 1000 mL),population dynamic and sexual reproduction of Daphnia magna which came from Huaihe river were studied in thisExpand
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Crystal Structures of Two New Monoprotonated Products of 1,4,7 trimethyl-1,4,7-triazacyclononane: (Me_3〔9〕aneN_3H)(SO_3CF_3) and (Me_3〔9〕aneN_3H)I
Two new monoprotonated products of macrocyclic polyamine 1,4,7 trimethyl 1,4,7 triazacyclononane(Me 3〔9〕aneN 3), (Me 3〔9〕aneN 3H)(SO 3CF 3) 1 (C 10 H 22 N 3O 3SF 3, M r =321.36) and (Me 3〔9〕aneN 3H)IExpand
Effect of temperature and food concentration on population dynamic and sexual reproduction of Daphnia magna
Population dynamics and gamogenesis of Daphnia magna from Huaihe River were studied under four temperatures(15,20,25,30℃) and three food concentrations(1×104,1×105,5×105 cells ml-1).During early daysExpand
SEASONAL VARIATIONS OF CRUSTACEAN ZOOPLANKTON COMMUNITY STRUCTURE IN THE MIDDLE REACHES OF THE HUAIHE RIVER
Seasonal dynamics of community structure of crustacean zooplankton were studied throughout 2007.Twenty-four species were recorded,including eight genera and thirteen species for cladocerans and nineExpand