Muscular Development in (Echiura, Annelida).

Echiura is one of the most intriguing major subgroups of phylum Annelida because, unlike most other annelids, echiuran adults lack metameric body segmentation. lives in U-shape burrows of soft sediments. Little is known about the molecular mechanisms underlying the development of .

Impact of emotional labour and workplace violence on professional quality of life among clinical nurses.

Aim: We examined Korean nurses professional quality of life, emotional labour and workplace violence to guide development of interventions to improve nurses professional quality of life.

Background: Nurses face heavy exposure to emotional labour and workplace violence. Stress experienced by nurses reduces compassion satisfaction and increases compassion fatigue.

Cross-Sectional Study on Patient Safety Culture, Patient Safety Competency, and Adverse Events.

This study aims to examine the associations between nurses' perceptions of patient safety culture, patient safety competency, and adverse events. Using convenience sampling, we conducted a cross-sectional study from February to May 2018 in two university hospitals. Furthermore, we performed multiple logistic regression to examine associations between patient safety culture, patient safety competency, and adverse events.

The genome of common long-arm octopus Octopus minor.

Background: The common long-arm octopus (Octopus minor) is found in mudflats of subtidal zones and faces numerous environmental challenges. The ability to adapt its morphology and behavioral repertoire to diverse environmental conditions makes the species a promising model for understanding genomic adaptation and evolution in cephalopods.

Findings: The final genome assembly of O.

Accuracy of the femoral tunnel position in robot-assisted anterior cruciate ligament reconstruction using a magnetic resonance imaging-based navigation system: A preliminary report.

Background: Tunnel misplacement is a common cause of failed anterior cruciate ligament (ACL) reconstruction. In this study, the accuracy of the femoral tunnel position was evaluated in robot-assisted ACL reconstruction using a magnetic resonance imaging (MRI)-based navigation system. We hypothesized that a difference of less than 2 mm between the planned femoral tunnel position and the created one was achievable.

Comparison of displacement of polyvinyl chloride and silicone leftsided double-lumen tubes during lateral positioning.

Background: Compared to an equivalent sized polyvinyl chloride (PVC) double-lumen tube (DLT), a silicone DLT has a shorter endobronchial segment. The aim of this study was to compare the incidence of clinically significant displacement of left-sided PVC and silicone DLTs after a positional change to a lateral position from a supine position and determine its effect on the need for DLT repositioning for successful lung separation in patients undergoing thoracic surgery.

Methods: One hundred eight adult patients requiring one-lung ventilation were randomly divided into group P (PVC DLT, n = 54) and group S (Silicone DLT, n = 54).

The Effect of Work Addiction on Korean Nurses' Professional Quality of Life: A Cross-Sectional Study.

This study sought to delineate the relations between work addiction and professional quality of life among nurses in university hospitals. The differences between compassion satisfaction, burnout, and secondary traumatic stress by work addiction tendency were investigated among 278 Korean nurses. Results revealed that 46.

Nurses' and patients' perceptions of privacy protection behaviours and information provision.

Background: With increased attention to patient privacy and autonomy, privacy protection and information provision for patients are becoming increasingly important.

Objectives: The aim of this study was to identify and analyse nurses' and patients' perceptions of the importance and performance of protecting patients' privacy and providing them with relevant information.

Research Design: This study is a descriptive cross-sectional investigation.

Professional Quality of Life and Clinical Competencies among Korean Nurses.

Purpose: Clinical competence among nurses is an essential requirement for the provision of safe and effective patient care. This study aims to classify types of professional quality of life experienced by Korean nurses, and examine the relationship between demographic and professional characteristics and clinical competence among nurses experiencing each type.

Methods: A total of 335 nurses completed questionnaires assessing professional quality of life, clinical competence, and demographic and professional characteristics.

Progression of subcortical atrophy and iron deposition in multiple system atrophy: a comparison between clinical subtypes.

Magnetic resonance imaging (MRI) can be useful not only for the diagnosis of multiple system atrophy (MSA) itself, but also to distinguish between different clinical subtypes. This study aimed to investigate whether there are differences in the progression of subcortical atrophy and iron deposition between two variants of MSA. Two serial MRIs at baseline and follow-up were analyzed in eight patients with the parkinsonian variant MSA (MSA-P), nine patients with cerebellar variant MSA (MSA-C), and fifteen patients with Parkinson's disease (PD).

Korean nurses' ethical dilemmas, professional values and professional quality of life.

Background: In the changing medical environment, professional stress continuously increases as the individual's quality of life suffers. Of all the healthcare professions, nursing is especially prone to burnout, compassion fatigue and reduced compassion satisfaction, due to the tensions resulting from the physical and psychological stress of caring for extremely ill patients.

Objectives: This study examined the professional quality of life of clinical nurses in Korea and the relationship between their experiences in ethical dilemmas and professional values.

Evaluation of brain iron content in idiopathic REM sleep behavior disorder using quantitative magnetic resonance imaging.

Background: Neuroimaging studies in patients with idiopathic rapid eye movement sleep behavior disorder (iRBD) show similar structural and functional changes to alpha-synucleinopathies, including PD. Until now, there have been few attempts to characterize brain iron deposition in iRBD. The aim of this study was to investigate brain iron content in patients with iRBD using quantitative magnetic resonance imaging (MRI).

Quantitative assessment of subcortical atrophy and iron content in progressive supranuclear palsy and parkinsonian variant of multiple system atrophy.

It is a matter of debate whether increased brain iron levels are the cause or only the consequence of neurodegenerative process in degenerative parkinsonism. The aim of this study is to characterize disease-related changes in volumes and iron-related R2 values of basal ganglia and thalamus. 13 patients with progressive supranuclear palsy (PSP), 15 with a parkinsonian variant of multiple system atrophy (MSA-p), 29 with Parkinson's disease (PD), and 21 age-matched controls underwent 3-Tesla MRI.

Topographical differences of brain iron deposition between progressive supranuclear palsy and parkinsonian variant multiple system atrophy.

Objective: There have been various studies showing increased iron levels in parkinsonian disorders. The purpose of this study was to demonstrate topographical differences of brain iron deposition between progressive supranuclear palsy (PSP) and the parkinsonian variant of multiple system atrophy (MSA-p) with SWI images.

Methods: A total of 11 patients with PSP, 12 with MSA-p, 15 with Parkinson's disease (PD), and 20 age-matched healthy controls underwent SWI of the brain.

Evaluation of the brain activation induced by functional electrical stimulation and voluntary contraction using functional magnetic resonance imaging.

Background: To observe brain activation induced by functional electrical stimulation, voluntary contraction, and the combination of both using functional magnetic resonance imaging (fMRI).

Methods: Nineteen healthy young men were enrolled in the study. We employed a typical block design that consisted of three sessions: voluntary contraction only, functional electrical stimulation (FES)-induced wrist extension, and finally simultaneous voluntary and FES-induced movement.

Widespread cerebral cortical mineralization in Wilson's disease detected by susceptibility-weighted imaging.

Signal abnormalities of cortical gray matter, compared with the deep nuclear structures, have received less attention in Wilson's disease (WD). They nearly always accompanied white matter signal change, and commonly are associated with epilepsy and psychiatric features. We report herein two cases diagnosed as WD who, in addition to characteristic deep nuclear lesions on MR imaging, had widespread cerebral cortical paramagnetic signals dramatically detected by susceptibility-weighted imaging.

Evaluation of the keyhole technique applied to the proton resonance frequency method for magnetic resonance temperature imaging.

Purpose: To evaluate the temporal and spatial resolution of magnetic resonance (MR) temperature imaging when using the proton resonance frequency (PRF) method combined with the keyhole technique.

Materials And Methods: Tissue-mimicking phantom and swine muscle tissue were microwave-heated by a coaxial slot antenna. For the sake of MR hardware safety, MR images were sequentially acquired after heating the subjects using a spoiled gradient (SPGR) pulse sequence.

Fabrication and characterization of a three-dimensional feed-horn infrared antenna for an infrared detector.

A three-dimensional feed-horn antenna for the 10-microm-wavelength infrared region has been suggested, characterized, and fabricated. It is applied to an infrared detector for efficient collection of infrared radiation and to reduce background noise. The optimum size of the horn antenna was designed for maximum antenna directivity.