Publications by authors named "H Sasabe"
Organic light-emitting diodes (OLEDs) based on hyperfluorescent system have attracted widespread attention due to their ability to simultaneously achieve improvements in efficiency, lifetime, and color purity by combining the advantages of high exciton utilization sensitizers and high-color purity emitters. Traditional hyperfluorescent systems typically involve three or four components and are severely sensitive to the doping concentration (≈0.5 wt%) of a terminal emitter, which inevitably causes high costs and difficulties in reproducibility.
View Article and Find Full Text PDFBackground: Health checkups are important in patients with chronic kidney disease (CKD), which is not easily accompanied by subjective symptoms. CKD can be caused or aggravated by factors that have not yet been identified.
Methods: This retrospective cohort study included 7 483 patients who underwent specific annual health checkups at a medical institution in Tama City, did not have CKD in 2012, and continued to undergo checkups (aged 40-74 years).
Article Synopsis
- λ-phosphinine derivatives have high photoluminescent quantum yield (PLQY) values but have been underused in blue OLEDs due to low external quantum efficiency (EQE) rates, which have never surpassed 2.4%.
- In this study, two new blue λ-phosphinine derivatives, CN-COCF and COMe-CHO, were developed and their solid-state photophysical properties were analyzed.
- The research found that using appropriate host materials with certain characteristics helped achieve blue OLEDs with an improved EQE of over 4%, marking significant progress in this field.
Article Synopsis
- The YUBI-WAKKA test, designed to predict sarcopenia and related health risks, was analyzed over one year to assess changes in participants' physical condition and associated factors.
- A study of 5,405 individuals aged 65-74 revealed that 14% of men and 16% of women showed signs of sarcopenia, with key factors linked to these changes including low uric acid in men, and low BMI and elevated hemoglobin in women.
- The test demonstrated fair consistency over the year, with concordance rates of 72.8% for larger calves, 63.5% for those that just fit, and 52.0% for smaller calves, indicating its reliability
Objectives: To examine the positive rate of sarcopenia using the 'Yubi-wakka' (finger-ring) test and associated risk factors among adults aged 65 years and older.
Design: Cross-sectional study.
Setting: We used the Yubi-wakka test, which has been developed and validated as a predictor of sarcopenia, frailty, disability and mortality.