16 research outputs found
Separation of Sympathomimetic Amines of Abuse and Related Compounds by Micellar Electrokinetic Chromatography
Separation of twelve sympathomimetic amines and related compounds by micellar electrokinetic chromatography (MEKC) with UV absorbance detection is described. These amines were well separated within 25 min using 50 mM sodium tetraborate solution containing 15 mM sodium dodecylsulfate (SDS) of pH 9.3 as a running solution and detected at 210 nm. MEKC was performed with an applied voltage of 13 kV at 25 °C using a fused-silica capillary (50 cm×75 mm i.d.) with effective length of 37.5 cm. The detection limits of these compounds were in the range from 4 to 97 fmol/injection at a signal-to-noise ratio (S/N) of 3. The reproducibility of the method expressed as relative standard deviation (RSD) for within-day (n=6) and between-day (n=5) assays was less than 4.8 and 8.8%, respectively. The proposed method could be applied to the determination of an anorectic drug, phentermine, in Chinese tea with a detection limit of 99 μg/g (105 fmol/injection, S/N=3)
The levels of evidence for a medical/dental lecture: A guide for lecture selection
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/168350/1/jdd12481_am.pdfhttp://deepblue.lib.umich.edu/bitstream/2027.42/168350/2/jdd12481.pd
Simulation training for medical emergencies of dental patients: A review of the dental literature
In recent years, due to the aging of the population, the number of dental patients with comorbidities such as hypertension and diabetes has increased. Although it has been reported that these patients are increasingly developing medical emergencies during their dental treatments, many dental providers still do not possess the skills to manage medical emergencies appropriately. Simulation training is essential to improve this situation however, there is no report describing how to conduct an effective simulation in detail for dental office medical emergencies. The purpose of this review is to provide information on simulations that is effective and practical. The authors will highlight the key characteristics for providing effective simulation trainings, such as the selection of simulators, simulation locations, instructors, debriefings, methods for evaluating educational effectiveness, and the use of telesimulation as a method for simulation training due to the global COVID-19 pandemic. In addition, this review provides recommendations on tailoring an ideal simulation training course for those who wish to create one. The authors hope that this review will promote the spread of effective simulation training and in turn, contribute to improving the medical safety of dental patients
Dental management under general anesthesia in an intellectually disabled adult patient with phenylketonuria
Gene expression profiles of early chondrogenic markers in dedifferentiated fat cells stimulated by bone morphogenetic protein 4 under monolayer and spheroid culture conditions in vitro
Hyperfine Sublevel Correlation Spectroscopy Studies of Iron–Sulfur Cluster in Rieske Protein from Green Sulfur Bacterium Chlorobaculum tepidum
Predicting the success of endoscopic transpapillary gallbladder drainage for patients with acute cholecystitis during pretreatment evaluation
INTRODUCTION: Although endoscopic transpapillary gallbladder drainage (ETGBD) has been reported to be an effective treatment for acute cholecystitis, technical difficulties have precluded more widespread use of this technique. Case evaluations that can predict the occurrence of such difficulties should increase the acceptance of ETGBD for acute cholecystitis treatment
Hyperfine Sublevel Correlation Spectroscopy Studies of Iron–Sulfur Cluster in Rieske Protein from Green Sulfur Bacterium Chlorobaculum tepidum
The magnetic properties
of the Rieske protein purified from Chlorobaculum tepidum were investigated using electron
paramagnetic resonance and hyperfine sublevel correlation spectroscopy
(HYSCORE). The <i>g</i>-values of the Fe<sub>2</sub>S<sub>2</sub> center were <i>g</i><sub><i>x</i></sub> = 1.81, <i>g</i><sub><i>y</i></sub> = 1.90,
and <i>g</i><sub><i>z</i></sub> = 2.03. Four classes
of nitrogen signals were obtained by HYSCORE. Nitrogens 1 and 2 had
relatively strong magnetic hyperfine couplings and were assigned as
the nitrogen directly ligated to Fe. Nitrogens 3 and 4 had relatively
weak magnetic hyperfine couplings and were assigned as the other nitrogen
of the His ligands and peptide nitrogen connected to the sulfur atom
via hydrogen bonding, respectively. The anisotropy of nitrogen 3 reflects
the different spin density distributions on the His ligands, which
influences the electron transfer to quinone