نتایج جستجو برای: 2001 the nth
تعداد نتایج: 16065847 فیلتر نتایج به سال:
We performed scanning electron microscopy observations of the scales on the dorsal surfaces of wings of male and female Chrysozephyrus ataxus butterflies. The male butterfly has curly scales on the blue or green wings. It was deduced that the interference of the selective incident rays with the wavelength in 560 nm 420 nm and 340 nm 250 nm occurs incoherently by layers 270 nm thick piled in the...
Two strains that overproduce endonuclease III were found in a colony bank containing hybrid ColE1-Escherichia coli plasmids. The enzyme was identified in crude extracts by the degradation of partially depyrimidinated DNA in the presence of EDTA, by its sedimentation velocity, and by its associated thymine glycol-DNA glycosylase activity. An insertion mutation was produced by cloning the kanamyc...
1.0 overview it seems that grammar plays a crucial role in the area of second and foreign language learning and widely has been acknowledged in grammar research. in other words, teaching grammar is an issue which has attracted much attention to itself, and a lot of teachers argue about the existence of grammar in language teaching and learning. this issue will remind us a famous sentence f...
Requests for recommendation can be seen as a form of query for candidate items, ranked by relevance. Users are however oen unable to crisply dene what they are looking for. One of the core concepts of natural communication for describing and explaining complex information needs in an intuitive fashion are analogies: e.g., “What is to Christopher Nolan as is 2001: A Space Odyssey to Stanley Ku...
In a recent paper [11], R.E. Curto, S.H. Lee and J. Yoon asked the following question. Let A be subnormal operator, assume that A2 is quasinormal. Does it follow quasinormal? this paper, we answer question in affirmative. fact, prove more general result nth roots of quasinormal operators are Research on problem has led us to new criterion for semispectral measure half-line spectral, written ter...
TOPIC: Procedures TYPE: Original Investigations PURPOSE: Postprocedural pneumothorax (iatrogenic) is a patient safety indicator resulting from invasive procedures such as insertion of subclavian central line, pacemaker/ implantable cardiac defibrillator (ICD) placement, transbronchial lung biopsy and transthoracic pulmonary biopsy. This study examines if any these have higher predisposition to ...
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