An exploratory study on the role of occupational therapists in home-based rehabilitation team in South Korea.

Cooperation among rehabilitation team members is essential in the home-based rehabilitation setting. Q-methodology that can quantitatively analyze the subjectivity of members of the rehabilitation team was used to explore the role of occupational therapists (OTs) in home-based rehabilitation. The Q-methodology process was implemented in five steps: Step 1 - Representative statements about the role of OTs were collected through in-depth interviews, open questionnaires, and literature reviews (Q-sample); Step 2 - A total of 34 rehabilitation team members (physical therapists, OTs, social workers, nutritionists) were recruited (P-sample); Step 3 - The statements were classified according to their subjective perspective (Q-sort); Step 4 - Factor analysis was performed based on the correlation among the responses from the participants (Q-factor analysis); Step 5 - The awareness factor for roles was interpreted (Interpretation of awareness factors).

Wireless and Linear Hydrogen Detection up to 4% with High Sensitivity through Phase-Transition-Inhibited Pd Nanowires.

Palladium (Pd) has been drawing increasing attention as a hydrogen (H) detecting material due to its highly selective sensitivity to H. However, at H concentrations above 2%, Pd undergoes an inevitable phase transition, causing undesirable electrical and mechanical alterations. In particular, nonlinear gas response (Δ/) that accompanies phase transition has been a great bottleneck for detecting H in high concentrations, which is especially important as there is a risk of explosion over 4% H.

Chemo-Mechanically Operating Palladium-Polymer Nanograting Film for a Self-Powered H Gas Sensor.

This study proposes a reliable and self-powered hydrogen (H) gas sensor composed of a chemo-mechanically operating nanostructured film and photovoltaic cell. Specifically, the nanostructured film has a configuration in which an asymmetrically coated palladium (Pd) film is coated on a periodic polyurethane acrylate (PUA) nanograting. The asymmetric Pd nanostructures, optimized by a finite element method simulation, swell upon reacting with H and thereby bend the PUA nanograting, changing the amount of transmitted light and the current output of the photovoltaic cell.

Stress-engineered palladium nanowires for wide range (0.1%-3.9%) of H detection with high durability.

Pd nanowire-based H sensors have attracted significant attention because of their superior sensing performance. However, when exposed to H concentrations of more than 2%, Pd experiences volume expansion over 10%, resulting in a significant amount of mechanical stress. Thus, exposure to such high H concentrations causes physical destruction of Pd nanowires, such as breaks and peel-offs, leading to severe difficulty in the reliable detection of H over a wide concentration range.

Material-Independent Nanotransfer onto a Flexible Substrate Using Mechanical-Interlocking Structure.

Nanowire-transfer technology has received much attention thanks to its capability to fabricate high-performance flexible nanodevices with high simplicity and throughput. However, it is still challenging to extend the conventional nanowire-transfer method to the fabrication of a wide range of devices since a chemical-adhesion-based nanowire-transfer mechanism is complex and time-consuming, hindering successful transfer of diverse nanowires made of various materials. Here, we introduce a material-independent mechanical-interlocking-based nanowire-transfer (MINT) method, fabricating ultralong and fully aligned nanowires on a large flexible substrate (2.

Effects of interactive metronome training on upper extremity function, ADL and QOL in stroke patients.

Background: Rhythm and timing training is stimulation that substitutes for a damaged function controls muscular movement or temporal element, which has positive impacts on the neurological aspect and movement of the brain.

Objective: This study is to assess the changes caused by rhythm and timing training using an interactive metronome (IM) on upper extremity function, ADL and QOL in stroke patients.

Methods: In order to assess the effects of IM training, a group experiment was conducted on 30 stroke patients.

Cognitive basis about risk level classifications for the self-assessment of older drivers.

[Purpose] This study analyzed the cognitive functions according to risk level for the Driver 65 Plus measure, and examined the cognitive basis of self-assessment for screening the driving risk of elderly drivers. [Subjects and Methods] A total of 46 older drivers with a driver's license participated in this study. All participants were evaluated with Driver 65 Plus.

Versatile Transfer of an Ultralong and Seamless Nanowire Array Crystallized at High Temperature for Use in High-Performance Flexible Devices.

Nanowire (NW) transfer technology has provided promising strategies to realize future flexible materials and electronics. Using this technology, geometrically controlled, high-quality NW arrays can now be obtained easily on various flexible substrates with high throughput. However, it is still challenging to extend this technology to a wide range of high-performance device applications because its limited temperature tolerance precludes the use of high-temperature annealing, which is essential for NW crystallization and functionalization.

Reliability and Validity of the Activity Participation Assessment for School-age Children in Korea.

Objective: This pilot study examined the internal consistency, test-retest reliability, construct validity, and discriminant validity of the Activity Participation Assessment (APA) for school-age children in Korea.

Methods: The construct validity of the APA was first established by factor analysis on the response of 134 nondisabled children. Internal consistency was evaluated for each of the factors.

Clinical usefulness of the clock drawing test applying rasch analysis in predicting of cognitive impairment.

[Purpose] This study examined the clinical usefulness of the clock drawing test applying Rasch analysis for predicting the level of cognitive impairment. [Subjects and Methods] A total of 187 stroke patients with cognitive impairment were enrolled in this study. The 187 patients were evaluated by the clock drawing test developed through Rasch analysis along with the mini-mental state examination of cognitive evaluation tool.

Cut-off point for the trail making test to predict unsafe driving after stroke.

[Purpose] This study examined the cut-off point of the Trail Making Test in predicting the risk of unsafe driving in stroke patients. [Subjects and Methods] A total of 81 stroke patients with a driver's license participated in this study. The DriveABLE Cognitive Assessment Tool, Trail Making Test-A, and Trail Making Test-B evaluations were conducted in all participants.

Meta-analysis about cognitive intervention effect applied to dementia patients.

Objective: The study tries to explore what effects multiple cognitive intervention, computer-based intervention, and memory training program had on dementia patients through meta-analysis.

Method: Data was collected using an overseas search engine and 13 pieces of research published from January 2001 to April 2015 were selected. On papers that fit the selection criteria qualitative evaluation was conducted using Jadad evaluation and using pre-post average, standard deviation, and sample size of cognitive function, meta-analysis was conducted.

Usefulness of the driveABLE cognitive assessment in predicting the driving risk factor of stroke patients.

[Purpose] This study examined the usefulness of the DriveABLE cognitive assessment tool (DCAT) in predicting the driving risk factor of stroke patients, and compared the cognitive and driving functions of two groups discriminated by DCAT. [Subjects and Methods] A total of forty-two stroke patients with a driver's license participated in this study. Two participants with communication problems were excluded.

Effects of spaced retrieval training with errorless learning in the rehabilitation of patients with dementia.

[Purpose] Among the non-pharmacological interventions for dementia, spaced retrieval training (SRT) is a good method for rehabilitating cognition. The purpose of this study was to examine effects of SRT with errorless learning (EL) in the rehabilitation of patients with dementia. [Subjects and Methods] Twenty-nine participants with vascular dementia (VD) and Alzheimer's disease (AD) participated in the present study.

Psychosocial predictors of participation restriction poststroke in Korea: A path analysis.

Objective: The present cross-sectional study tested a hypothetical path model consisting of psychosocial factors in relation to activity participation restriction in chronic stroke. Motor and cognitive functions and age; psychological factors consisting of depressive symptoms, hopeful thinking, and self-esteem; and activities of daily living and social support served as psychosocial factors.

Method: Data were collected from 171 community-dwelling individuals with chronic stroke in Korea.

Cognitive test to forecast unsafe driving in older drivers: meta-analysis.

Objectives: This study performed meta-analysis on the literatures that surveyed cognitive test to forecast unsafe driving by older drivers and identified objective and consistent cognitive test for predicting unsafe driving of older drivers.

Selection Criteria: The study of RCT (Randomized Control Trial) that conducted cognitive test by classifying older drivers into safe-drivers and unsafe-drivers was done and a total of nine studies suitable for the selection criteria were chosen.

Search Strategy: To meet subject selection, online search was performed by keyword such as "Older", "Driving", "Safe", "Cognition", etc.

The Standardization of the Clock Drawing Test (CDT) for People with Stroke Using Rasch Analysis.

[Purpose] The aim of this study was to standardize the clock drawing test (CDT) for people with stroke using Rasch analysis. [Subjects and Methods] Seventeen items of the CDT identified through a literature review were performed by 159 stroke patients. The data was analyzed with Winstep version 3.

A mobile asset tracking system architecture under mobile-stationary co-existing WSNs.

The tracking of multiple wireless mobile nodes is not easy with current legacy WSN technologies, due to their inherent technical complexity, especially when heavy traffic and frequent movement of mobile nodes are encountered. To enable mobile asset tracking under these legacy WSN systems, it is necessary to design a specific system architecture that can manage numerous mobile nodes attached to mobile assets. In this paper, we present a practical system architecture including a communication protocol, a three-tier network, and server-side middleware for mobile asset tracking in legacy WSNs consisting of mobile-stationary co-existing infrastructures, and we prove the functionality of this architecture through careful evaluation in a test bed.

Coexistence of ergodicity and nonergodicity in LaFeO3-modified Bi(1/2)(Na(0.78)K(0.22))(1/2)TiO3 relaxors.

The effect of LaFeO(3) addition to Bi(1/2)(Na(0.78)K(0.22))(1/2)TiO(3) ceramics on the phase stability and macroscopic functional properties was investigated.

Optimistic bias about H1N1 flu: testing the links between risk communication, optimistic bias, and self-protection behavior.

Using two-wave panel survey data (N = 348) collected in South Korea in the context of H1N1 flu, we explored several important aspects of optimistic bias that have been relatively unexplored in previous research, including: (a) the extent to which risk communication and indirect risk experience affect changes in optimistic bias over time; (b) the utility of the concept of optimistic bias to predict subsequent risk behavior; and (c) how optimistic bias moderates the effect of risk communication and indirect risk experience on self-protection behavior. The findings revealed that optimistic bias is rather enduring and resilient, as it changed only under one condition (high indirect risk experience combined with low interpersonal communication). Optimistic bias had a nonsignificant association with self-protection behavior, but played an important moderating role by reducing the effect of interpersonal communication on self-protection behavior.

Enhancement in corrosion barrier properties of polyurethane films on steel by embedding MgO nanoparticles.

The effect of nanosized MgO loading on the corrosion barrier characteristics of polyurethane (PU) films on mild steel has been investigated. It was found that small amount of MgO loading even as low as 0.03 vol% significantly improved the corrosion retardation ability of PU films.

1H NMR spectroscopic identification of a glue sniffing biomarker.

Organic solvent abuse typically involves sniffing organic solvents to experience the mind-altering conditions they induce. In Republic of Korea, organic solvent abuse is a serious social problem, especially among teenagers. Several studies have addressed the effects of organic solvent abuse on mind and body, but there are no simple methods by which such abuse can be positively identified.