نتایج جستجو برای: hazard perception tests

تعداد نتایج: 563752  

1999
RICHARD H. PIERCE WENDY KOZLOWSKI

This investigation was undertaken to determine whether the mosquito larvicide temephos (applied as Abate 4-Et) created an environmental hazard for nontarget organisms in a southwest Florida salt marsh community. Field toxicity tests were performed during routine larvicide applications using larvae of salt marsh crabs (Aratus pesonii and Uca rapax) and adult Mysidopsis bahia. Laboratory toxicity...

2009
Maja Marković Novi Sad

The study investigates the perception and production of the English vowels /e/ and /æ/ by native speakers of Serbian. The research consisted of perception and production experiments, whose subjects were the first year students of English at Novi Sad University. The results of the perception tests indicate a poor discrimination level between the two L2 vowels. The production tests reveal that bo...

Journal: :Revue neurologique 2009
C Bourlon S Chokron A-C Bachoud-Lévi O Coubard I Bergeras A Moulignier A-C Viret P Bartolomeo

INTRODUCTION The relationship between visual perception and visual mental imagery are at the center of a lively theoretical debate between those postulating common neurocognitive processes between perception and imagery and those who emphasize the differences between these two entities. Neuropsychology can make an important contribution to this debate, by assessing associations and dissociation...

Journal: :فیزیک زمین و فضا 0
سید حسن موسوی بفروئی دانشجوی دکتری، گروه فیزیک زمین، مؤسسه ژئوفیزیک دانشگاه تهران، ایران نوربخش میرزائی دانشیار، گروه فیزیک زمین، مؤسسه ژئوفیزیک دانشگاه تهران، ایران الهام شعبانی استادیار، گروه فیزیک زمین، مؤسسه ژئوفیزیک دانشگاه تهران، ایران مرتضی اسکندری قادی دانشیار، دانشکده مهندسی عمران، پردیس دانشکده های فنی، دانشگاه تهران، ایران

growing environmental and social concerns, both on the part of decision makers and public opinion, have brought a new perspective to the perception of hazard assessments a valid alternative in the long-term, and an effective complement in short and medium terms, to traditional design procedure for a resistant and safe environment. results of the gradual development of research on the probabilis...

2009
A. CHAKRABARTY

Naturally occurring radioactive materials (NORMS) and fallout 137Cs were estimated in surface soils from the highly mineralized Singhbhum region of Eastern India. The activity concentrations varied from 50.67-109.14 Bq/kg (238U), 48.12142.55 Bq/kg (226Ra), 28.73-89.78 Bq/kg (232Th), 494.84-1121.36 Bq/kg (40K) and 1.8-7.48 Bq/kg (137Cs). Correlation between radionuclides was studied. 232Th/238U ...

Journal: :IEEE Trans. Computers 1974
Melvin A. Breuer R. Loyd Harrison

One problem associated with test generation algorithms for sequential circuits is that they often produce tests which, when applied to the circuit under test, create static and/or dynamic hazards which may invalidate the test. Usually, for static hazards, but not dynamic hazards, these situations can be predicted using a logic simulator. In this paper we present procedures which can be added to...

2007
Song Yang Yichuan Zhao

For testing treatment effect with time to event data, combinations of several tests are often desired when the hazard functions of the two groups are nonproportional. Yang and Prentice [2005. Semiparametric analysis of short term and long term hazard ratios with two sample survival data. Biometrika 92, 1–17.] defined a new two-sample semiparametric model that accommodates nonproportional hazard...

2011
Kun-Ho Song

The prevalence of Toxoplasma (T.) gondii was surveyed using a latex agglutination test (LAT) in native Korean cattle. A blood sample was collected from female 105 cattle in the Daejeon area of Korea. All cattle were asymptomatic and had not received any prophylactic treatment for T. gondii. Blood samples were collected via the caudal vein. The cattle ranged in age from 2~6 years (mean 3.7 years...

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