background. the color masking ability of a restoration plays a significant role in coveringa discolored substructure; how-ever, this optical property of zirconia ceramics has not been clearly determined yet. the aim of this in vitro study was to evaluate the color masking ability of a zirconia ceramic on substrates with different values. methods. ten zirconia disk specimens,0.5 mm in thickness ...

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this study examined the knowledge and perception of farmers regarding privatization and commercialization of agricultural extension services in delta state, nigeria. a sample size of 90 farmers in contact with extension agents was randomly selected for the study. data for the study was collected through the use of a validated structured interview schedule. both descriptive and inferential stati...

abstract background: labor pain is one of the most intense pains experienced by women. different factors including physiological, psychological, socio‑cultural, environmental, and personality‑related factors are relevant to perception of childbirth pain. the negative experience of pain causes mental, psychological problems and influences the relationship between the mother and infant. therefore...

abstract background: natural delivery is the most painful event that women experience in their lifetime. that is why labor pain relief has long been as one of the most important issues in the field of midwifery. thus, the present study aims to explore the perception of primiparous mothers on comfortable resources for labor pain. materials and methods: in the present study, qualitative content a...

objectives: to evaluate different signal-processing algorithms for tactile identification of environmental sounds in a monitoring aid for the deafblind. two men and three women, sensorineurally deaf or profoundly hearing impaired with experience of vibratory experiments, age 22-36 years. methods: a closed set of 45 representative environmental sounds were processed using two transposing (trha, ...

background. in the medical sense, stigma has been defined as the collection of negative attitudes and beliefs that are directed at people living with a particular condition or disease process. a cohort study was conducted to explore the hiv stigma that is perceived by hiv positive individuals versus that perceived by the general population within a community based dental clinic. methods. two se...