Objective: The value of sperm morphology as a predictor of a man's fertilizing potential has often been challenged because of different classification systems used to distinguish between normal and abnormal spermatozoa. The study aimed to monitor the reading skills of 53 laboratory technologists who are enrolled in a continuous quality control program for sperm morphology assessment.
Design: Prospective analytical study.
Settings: Academic hospital and academic institution setting.
Patient(s): Sperm samples from the sperm donor program and andrology technicians from sub-Saharan Africa.
Intervention(s): Papanicolaou-stained sperm slides were prepared and shipped on a quarterly basis to participating laboratories. Papanicolaou-prestained sperm morphology slides were used as test material for 21 months.
Main Outcome Measure(s): Percentage normal spermatozoa.A new statistical model was developed to record reading skills of the participating technicians. Reading skills were classified as marginal (5.7% of cases), good (11.3% of cases), and excellent (83% of cases).
Result(s): Participants maintained their morphological reading skills and agreed with the reference laboratory by not exceeding a SD limit of 0.2 to set stringent standards for the program.
Conclusion(s): Technician proficiency can be monitored using the results of a quality control program. A continuous quality control program can be initiated only after intensive training, because baseline values at the onset of the quality control program serves as an internal reference value.
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http://dx.doi.org/10.1016/s0015-0282(03)00367-4 | DOI Listing |
Br J Dev Psychol
January 2025
Texas A & M University, College Station, Texas, USA.
This study investigated the relationships between counting, Rapid Automatized Naming (RAN), and reading and arithmetic abilities in Chinese children at different developmental stages. Study 1 examined 51 kindergarteners (mean age 5.43 years) for character reading accuracy and arithmetic accuracy before formal schooling.
View Article and Find Full Text PDFFront Neurosci
January 2025
Laboratory of Brain Imaging, Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland.
Learning tactile Braille reading leverages cross-modal plasticity, emphasizing the brain's ability to reallocate functions across sensory domains. This neuroplasticity engages motor and somatosensory areas and reaches language and cognitive centers like the visual word form area (VWFA), even in sighted subjects following training. No study has employed a complex reading task to monitor neural activity during the first weeks of Braille training.
View Article and Find Full Text PDFNeurobiol Lang (Camb)
January 2025
Research Group ExpORL, Leuven Brain Institute, Department of Neurosciences, KU Leuven, Leuven, Belgium.
During the COVID-19 pandemic, children worldwide experienced school closures. Several studies have detected a negative impact on reading-related skills in children who experienced these closures during the early stages of reading instruction, but the impact on the reading network in the brain has not been investigated. In the current longitudinal study in a sample of 162 Dutch-speaking children, we found a short-term effect in the growth of phonological awareness in children with COVID-19 school closures compared to children without school closures, but no long-term effects one year later.
View Article and Find Full Text PDFDev Cogn Neurosci
January 2025
Department of Psychiatry and Behavioral Health, The Ohio State University, Columbus, OH, United States; The Child Mind Institute, New York, NY, United States. Electronic address:
Reading difficulties and exposure to air pollution are both disproportionately high among youth living in economically disadvantaged contexts. Critically, variance in reading skills in youth living in higher socioeconomic status (SES) contexts largely derives from genetic factors, whereas environmental factors explain more of the variance in reading skills among youth living in lower SES contexts. Although reading research has focused closely on the psychosocial environment, little focus has been paid to the effects of the chemical environment.
View Article and Find Full Text PDFDev Cogn Neurosci
January 2025
Vanderbilt University, United States. Electronic address:
Mathematics learning disorders (MD) and reading learning disorders (RD) are persistent conditions that interfere with success in academic and daily-life tasks, and cannot be attributed to intellectual disabilities, sensory deficits, or environmental factors. Prevalence rates of MD and RD are estimated at 5-10 % of school-age children, and their comorbidity (MDRD) is highly prevalent, with around 40 % of children with MD also experiencing RD. Despite this high comorbidity rate, research on MDRD has received less attention compared to isolated conditions, leaving its neurocognitive mechanisms unclear.
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