Results 251 to 260 of about 257,740 (355)

A study of dental health status of senior high school students.

open access: bronze, 1988
Masami Yonemitsu   +9 more
openalex   +2 more sources

4D Printing of Polyethylene Glycol‐Grafted Carbon Nanotube‐Reinforced Polyvinyl Chloride–Polycaprolactone Composites for Enhanced Shape Recovery and Thermomechanical Performance

open access: yesAdvanced Intelligent Systems, EarlyView.
This study introduces polyethylene glycol‐functionalized carbon nanotubes (CNTs) to enhance dispersion, interfacial bonding, and 4D printability in polyvinyl chloride‐PCL nanocomposites. The optimized 4D composite (0.5 wt% CNT) achieves a 25% increase in tensile strength, 95.78% shape fixity, and 5‐s recovery time.
Davood Rahmatabadi   +6 more
wiley   +1 more source

Oral Health Policy and Research Capacity: Perspectives From Dental Schools in Africa. [PDF]

open access: yesInt Dent J
Urquhart O   +20 more
europepmc   +1 more source

Phase Stability in Rare‐Earth‐Doped Apatites: A Machine Learning Approach

open access: yesAdvanced Intelligent Systems, EarlyView.
The thermal behavior and phase stability of rare‐earth‐doped apatites are investigated using high‐temperature X‐ray diffraction and thermogravimetric analysis. A machine learning decision tree model predicts decomposition products and stability regimes with ≈86% accuracy.
Geeta Sharma   +5 more
wiley   +1 more source

Prevalence of traumatic dental injury and associated factors among 12‐year‐old school children in Florianópolis, Brazil [PDF]

open access: bronze, 2003
Jefferson Traebert   +4 more
openalex   +1 more source

Addressing Anemia in High‐Altitude Populations: Global Impact, Prevalence, Challenges, and Potential Solutions

open access: yesAmerican Journal of Hematology, EarlyView.
Key challenges in diagnosing anemia in high‐altitude populations include variability in hemoglobin (Hb) concentration, associated pathological conditions, altitude‐induced plasma volume changes, and environmental factors such as contamination and nutrition.
Ayoub Boulares   +11 more
wiley   +1 more source

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