Queensland University of Technology

About: Queensland University of Technology is a education organization based out in Brisbane, Queensland, Australia. It is known for research contribution in the topics: Population & Context (language use). The organization has 14188 authors who have published 55022 publications receiving 1496237 citations. The organization is also known as: QUT.

Use of short peripheral intravenous catheters: characteristics, management, and outcomes worldwide

Abstract: BACKGROUND: Peripheral intravenous catheter (PIVC) use in health care is common worldwide. Failure of PIVCs is also common, resulting in premature removal and replacement. OBJECTIVE: To investigate the characteristics, management practices, and outcomes of PIVCs internationally. SETTING/PATIENTS: Cross-sectional study. Hospitalized patients from rural, regional, and metropolitan areas internationally. MEASUREMENTS: Hospital, device, and inserter characteristics were collected along with assessment of the catheter insertion site. PIVC use in different geographic regions was compared. RESULTS: We reviewed 40,620 PIVCs in 51 countries. PIVCs were used primarily for intravenous medication (n = 28,571, 70%) and predominantly inserted in general wards (n = 22,167, 55%). Two-thirds of all devices were placed in non-recommended sites such as the hand, wrist, or antecubital veins. Nurses inserted most PIVCs (n = 28,575, 71%); although there was wide regional variation (26% to 97%). The prevalence of iIn this study, we found that many PIVCs were placed in areas of flexion, were symptomatic or idle, had suboptimal dressings, or lacked adequate documentation. This suggests inconsistency between recommended management guidelines for PIVCs and current practice.dle PIVCs was 14% (n = 5,796). Overall, 10% (n = 4,204) of PIVCs were painful to the patient or otherwise symptomatic of phlebitis; a further 10% (n = 3,879) had signs of PIVC malfunction; and 21% of PIVC dressings were suboptimal (n = 8,507). Over one-third of PIVCs (n = 14,787, 36%) had no documented daily site assessment and half (n = 19,768, 49%) had no documented date and time of insertion. CONCLUSIONS: In this study, we found that many PIVCs were placed in areas of flexion, were symptomatic or idle, had suboptimal dressings, or lacked adequate documentation. This suggests inconsistency between recommended management guidelines for PIVCs and current practice.

New iron-cobalt oxide catalysts promoting BIVO4 films for photoelectrochemical water splitting

Abstract: Owing to the sluggish kinetics for water oxidation, severe surface charge recombination is a major energy loss that hinders efficient photoelectrochemical (PEC) water splitting. Herein, a simple process is developed for preparing a new type of low‐cost iron‐cobalt oxide (FeCoOx) as an efficient co‐catalyst to suppress the surface charge recombination on bismuth vanadate (BiVO4) photoanodes. The new FeCoOx/BiVO4 photoanode exhibits a high photocurrent density of 4.82 mA cm−2 at 1.23 V versus the reversible hydrogen electrode under AM 1.5 G illumination, which corresponds to >100% increase compared to that of the pristine BiVO4 photoanode. The photoanode also demonstrates a high charge separation efficiency of ≈90% with excellent stability of over 10 h, indicating the excellent catalytic performance of FeCoOx in the PEC process. Density functional theory calculations and experimental studies reveal that the incorporation of Fe into CoOx generates abundant oxygen vacancies and forms a p‐n heterojunction with BiVO4, which effectively promotes the hole transport/trapping from the BiVO4 photocatalyst and reduces the overpotential for oxygen evolution reaction (OER), resulting in remarkably increased photocurrent densities and durability. This work demonstrates a feasible process for depositing cheap FeCoOx as an excellent OER cocatalyst on photoanodes for PEC water splitting.

Generation and characterisation of cisplatin-resistant non-small cell lung cancer cell lines displaying a stem-like signature.

Abstract: In Fig 11A of this article [1], the 12h MOR CisR image is duplicated in error as representing the 4h MOR CisR result. In the revised Fig 11 provided here, the 4h MOR CisR has been replaced with the correct data from the original experiment. The figure legend has been updated to clarify methods used to obtain the quantitative results. The original images underlying the updated Fig 11A are included in S1 and S2 Files of this notice; S3–S6 Files include image and quantitative data supporting the results in Fig 11B. The original data underlying other results in the article are available upon request from the authors. A member of PLOS ONE’s Editorial Board confirmed that the revised version of Fig 11 and the data provided support the results as reported in the original article. The authors apologize for the error in the published article. (Figure Presented).

Shape of the retinal surface in emmetropia and myopia.

Abstract: PURPOSE: To determine and compare the shapes of the retinas of emmetropic and myopic eyes METHODS: Nonrotationally symmetrical ellipsoids were mathematically fitted to the retinal surfaces of 21 emmetropic and 66 myopic eyes (up to -12 D) of participants aged 18 to 36 years (mean, 255) using transverse axial and sagittal images derived from magnetic resonance imaging RESULTS: The shapes of the ellipsoids varied considerably between subjects with similar refractive errors The shapes were oblate (steepening toward the equator) in most of the emmetropic eyes (ie, the axial dimensions of the ellipsoids were smaller than both the vertical and horizontal dimensions) As myopia increased, all ellipsoid dimensions increased with the axial dimension increasing more than the vertical dimension, which in turn increased more than the horizontal dimension (increases in approximate ratios 3:2:1) The relative difference in the increase of these dimensions meant that as the degree of myopia increased the retinal shape decreased in oblateness However, few myopic eyes were prolate (flattening toward the equator) Independent of myopia, the ellipsoids were tilted about the vertical axis by 11 degrees +/- 13 degrees , and ellipsoid centers were decentered horizontally by 05 +/- 04 mm nasally and 02 +/- 05 mm inferiorly, relative to the fovea CONCLUSIONS: In general both emmetropic and myopic retinas are oblate in shape, although myopic eyes less so This finding may be relevant to theories implicating the peripheral retina in the development of myopia