Differences in the Effects of Work Environment on Health Problems and Satisfaction of Working Condition by Gender: The 6th Korean Working Conditions Survey.

This study investigated gender differences in exposure to hazardous factors, health problems, and work environment satisfaction and identified the effects of such differences on farmworkers in Korea. Through the 6th Korean Working Conditions Survey (KWCS) conducted by the Occupational Safety and Health Research Institute (OSHRI), the raw data on 2347 farmworkers were analyzed to present descriptive statistics for demographic characteristics, exposure to hazardous factors, health problems, and work environment satisfaction. We compared genders using chi-squared tests and investigated the effects of gender-specific working conditions on work-related health problems and work environment satisfaction using multivariate logistic analysis.

Does Erector Spinae Plane Block Have a Visceral Analgesic Effect?: A Randomized Controlled Trial.

The visceral analgesic efficacy of erector spinae plane block (ESPB) is still a matter of debate. This study attempted to investigate the visceral analgesic efficacy of ESPB in clinical setting. After randomized, we performed ultrasound-guided bilateral rectus sheath block (RSB), which was aimed to prevent postoperative somatic pain on all patients who underwent laparoscopic cholecystectomy (LC).

Comparison between total intravenous anesthesia and balanced anesthesia on postoperative opioid consumption in patients who underwent laparoscopic-assisted distal gastrectomy.

Remifentanil is the most frequently prescribed opioid for total intravenous anesthesia (TIVA) or balanced anesthesia (BA), due to its favorable pharmacological properties. However, several studies have reported opioid-induced hyperalgesia and/or acute tolerance after intraoperatively using remifentanil. In addition, it is imperative to control postoperative pain with lower doses of opioid anesthetic agents.

Intravenous Lidocaine for the Prevention of Postoperative Catheter-Related Bladder Discomfort in Male Patients Undergoing Transurethral Resection of Bladder Tumors: A Randomized, Double-Blind, Controlled Trial.

Background: Male patients undergoing transurethral resection of bladder tumors (TURBT) are prone to suffer from catheter-related bladder discomfort (CRBD). Lidocaine administration has been widely performed to reduce postoperative pain. Here, the effect of intravenous lidocaine administration on moderate-to-severe CRBD was evaluated in male patients undergoing TURBT.

Characterization of protein-immobilized polystyrene nanoparticles using impedance spectroscopy.

A novel approach for characterization of non-conductive protein-immobilized nanoparticles using AC impedance spectroscopy combined with conductive atomic force microscopy was examined. As AC impedance spectroscopy can provide information on diverse electrical properties such as capacitance and inductance, it is applicable to the characterization of non-conductive substances. Several non-conductive protein-immobilized polystyrene nanoparticles were analyzed using AC impedance spectroscopy, and their impedance spectra were used as markers for nanoparticle identification.

Simultaneous mineralization and deposition of inorganic nanoparticles onto micropatterns with a perfluoropolyether-decorated surface as a passivating layer.

We achieved simultaneous mineralization and patterning of inorganic nanoparticles on micropatterns using peptide as a linker and perfluoropolyether (PFPE) as a passivating molecule. The peptide was used as a linker molecule immobilizing inorganic nanoparticles on the substrate and PFPE was exploited as a mask material preventing nanoparticle binding. These two substances were used as surface-modifying molecules for the positive and negative patterns, respectively.

Use of the self-assembly of tyrosine-containing bolaamphiphile molecules as a reactive template for metal deposition.

A novel bolaamphiphile molecule exploiting biochemical functionality was synthesized and self-assembled to form a spherical reactive template for the preparation of composite metallic nanoshells. A tyrosine-containing bolaamphiphile, bis(N-alpha-amido-tyrosine)-1,7-heptane dicarboxylate, self-assembles instantaneously in an aqueous solution forming nanoscaled spheres. Instantaneous assembly of the prepared bolaamphiphile is driven by the polarity and stacking of phenol moiety in tyrosine.