نتایج جستجو برای: frequencies of occurrence

تعداد نتایج: 21169344  

Journal: :Journal of speech and hearing research 1994
J A Washington H K Craig

This study describes nonstandard syntactic and morphological forms used by 45 poor, urban, 4- to 5.5-year-old African American boys and girls. Distributional analyses revealed three subgroups distinguished by the percentage frequencies of occurrence of utterances containing specific forms, and by the predominant types used by each group. Implications for characterizing the linguistic production...

Journal: :Poultry science 2010
S Prinz G Van Oijen F Ehinger A Coenen W Bessei

Stunning efficiency of broilers after electrical waterbath stunning with an alternating current was assessed using electroencephalograms (EEG) and physical reflexes. Four hundred eighty-nine broilers (246 males and 243 females) were stunned in an electrical waterbath with a rectangular alternating stunning current of 60, 80, 100, 120, and 150 mA and frequencies of 70, 100, 200, 400, 800, and 1,...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1995
R J Hubner E M Cole J L Bruce C I McDowell J A Webster

By using taxonomic characters derived from EcoRI restriction endonuclease digestion of genomic DNA and hybridization with a labeled rRNA operon from Escherichia coli, a polymorphic structure of Listeria monocytogenes, characterized by fragments with different frequencies of occurrence, was observed. This structure was expanded by creating predicted patterns through a recursive process of observ...

1999
Sug-Bong Choe Hyuk-Jae Jang Sung-Chul Shin

The spin reversal of nanostructured Co/Pd multilayers by varying the number of repeats has been investigated quantitatively. The magnetization viscosity measurement and the direct observation of the time-dependent spin reversal patterns showed that their reversal behavior gradually changed from wall-motion dominant to nucleation dominant by increasing the number of repeats. Both the wall-motion...

2007
Stefan Th. Gries

The most frequently used statistic in corpus linguistics is the frequency of occurrence of some linguistic variable or the frequency of co-occurrence of two or more linguistic variables. However, it is widely known that frequencies of (co-)occurrence may sometimes be quite misleading. For example, Leech, Rayson, and Wilson (2001) show that while the words HIV, keeper, and lively are about equal...

Journal: یافته 2007
ebrahim nadi, hosein Mahjoob , mehrdad Hajilooi , mohammad Roshani , sasan Tavana ,

Background: Asthma is recognized as a common cause of disability, of great economic cost, and of preventable deaths. In this study we aimed to test our hypothesis to evaluate the relationship between the Human Platelet Antigen-1(HPA-1) polymorphism and bronchial asthma and its severity, which would suggest genetic variances that may be responsible for expression or activation of these receptors...

Journal: :Journal of medical entomology 2003
Marieta A H Braks Nildimar A Honório Ricardo Lourençqo-De-Oliveira Steven A Juliano L Philip Lounibos

During the rainy season of 2001, the incidence of the dengue vectors Aedes aegypti and Ae. albopictus was examined in different habitats of two cities (Rio de Janeiro and Nova Iguaçu) in Rio de Janeiro State, Brazil, and in two cities (Palm Beach and Boca Raton) in Florida. Oviposition trap collections were performed in urban, suburban, and rural habitats in both areas. Our hypothesis that the ...

In the case of study on the seismic behavior of tanks, one of the most important subjects is selection of convective and impulsive frequencies for storage tanks. These two frequencies are defined by Housner. The major utility of these frequencies is for Rayleigh damping which is a must for time history analysis. API 650, EUROCODE 8 have suggested some analytical solutions for finding convective...

Journal: :Phytopathology 2005
R G Pratt

ABSTRACT Leaf samples of forage bermudagrass with symptoms of infection by species of Bipolaris, Curvularia, and Exserohilum (dematiaceous hyphomycetes) were collected from three swine waste application sites in Mississippi at eight sampling times during each of 3 years. Samples were assayed for pathogens by observing sporulation on plated leaf tissue. Among 3,600 leaves assayed, eight species ...

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