نتایج جستجو برای: 2009 and 2009
تعداد نتایج: 16848381 فیلتر نتایج به سال:
Laetesia raveni n. sp. (Araneae, Linyphiidae), is described based on specimens collected in New South Wales and Queensland (Australia). This new linyphiid species is of bright green colour, and it seems to have a preference to build its webs almost exclusively on two plant species, namely Calamus muelleri Wendland (Arecaceae) and Solanum inaequilaterum Domin, (Solanaceae), both of them densely ...
Two new species of Amblypsilopus Bigot with a key to species from Vietnam (Diptera: Dolichopodidae).
Eight species of the genus Amblypsilopus Bigot are now recorded from Vietnam. The following two new species are described: Amblypsilopus lacduonganus sp. nov. and A. longus sp. nov. Two species, A. basalis Yang and A. capitatus Yang, are newly reported from Vietnam. A key to the species of the genus from Vietnam is provided.
In situ growth rates of interstitial ciliates of a sandy hyporheic zone were determined by a modification of the dilution technique. Preconditioned sediment was used as a dilution substrate. Field incubation was conducted in the upper 3 cm sediment layer; samples were taken on 3 days (Days 0, 21 and 35) in October to November 2002. Mean growth rates varied between 0.070 d–1 (Pleuronema spp.) an...
از فرآیند گرمای القائی در تکنولوژی و صنعت در موارد زیادی مانند جوش فلزات، بازپخت، متالورژی ]1[ رشد بلور ]4-2[، و ... استفاده می شود. در این روش ماده فلزی مورد نظر (قطعه کار مانند بوته)، داخل یک پیچه ی القائی قرار می گیرد. سپس با ایجاد یک جریان الکتریکی متناوب فرکانس بالا درپیچه (جریان رانشی)، میدان های الکتریکی و مغناطیسی متناوبی در اطراف پیچه ایجاد می شوند. با نفوذ این میدان ها در ماده فلزی مو...
(54) SELECTIVE GLYCOSIDASE INHIBITORS Publication Classification AND USES THEREOF 51) Int. Cl. (75) Inventors: Harold G. Selnick, Ambler, PA (US); ( Kun Liu, Edison, NJ (US); Ernest J. C07D 263/58 (2006.01) McEachern, Vancouver (CA); Yuanxi C07D 413/04 (2006.01) Zhou, Richmond (CA); Yongbao Zhu, C07D 417/04 (2006.01) Langley (CA) C07D 277/60 (2006.01) (52) U.S. Cl. (73) Assignees: Alectos Thera...
We report an in-depth survey of next-generation DNA sequencing of ciliate diversity and community structure in two permanently ice-covered McMurdo Dry Valley lakes during the austral summer and autumn (November 2007 and March 2008). We tested hypotheses on the relationship between species richness and environmental conditions including environmental extremes, nutrient status, and day length. On...
A new species of Stenolemus Signoret, 1858, Stenolemus annulatus sp. nov. (Reduviidae: Emesinae) is described from India. This new species is closely related to S. susainathani Wygodzinsky from Nilgiri Hills, South India and S. larat Wygodzinsky from Moluccas, Larat, by sharing common characteristics such as the ratio of distance between eyes and their width, long antennal first segment, slight...
where (v,1, ..., v,,) is a given probability vector, and (Xt(x), Yl(x)), ..., (X.(x), Y,(x)) is a permutation of (X1, I71) . . . . , (X, , Y,) according to increasing values of IlXi-x[I, x e R a. When [IXi-xll = H X j x l [ but i < j , X i is said to be closer to x than X~. The consistency properties of m, for special choices of the weight vector (v,,, ..., v,,,) are discussed in Cover (1968), ...
Peritrich ciliates are commonly found as epibionts, colonizing living organisms, or attached to non-living substrates in freshwater, estuarine and marine environments. Several species of peritrich epibionts are obligate, which means that they are able to only colonize other organisms, while others are facultative attaching to living or non-living substrates. The peritrich Zoothamnium intermediu...
High concentrations of the ciliate Epidinium Crawley are associated with damaged regions of fresh plant material undergoing digestion in the sheep rumen. This finding supports that postulate that sequestration in the rumen explains the low rate of passage of protozoa despite the high flow rate of liquid from the rumen. The maintenance of Epidinium in the rumen, despite their slow growth rate, i...
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