266 research outputs found
Development of a programme to facilitate interprofessional simulation-based training for final year undergraduate healthcare students
Original report can be found at: http://www.health.heacademy.ac.uk/publications/miniproject/alinier260109.pdfIntroduction: Students have few opportunities to practise alongside students from other disciplines. Simulation offers an ideal context to provide them with concrete experience in a safe and controlled environment. This project was about the development of a programme to facilitate interprofessional scenario-based simulation training for final year undergraduate healthcare students and explored whether simulation improved trainees’ knowledge of other healthcare discipline’s roles and skills. Methods: A multidisciplinary academic project team was created and trained for the development and facilitation of this project. The team worked on the development of appropriate multiprofessional scenarios and a strategy to recruit the final year students on a volunteer basis to the project. By the end of the project 95 students were involved in small groups to one of fifteen 3-hour interprofessional simulation sessions. Staff role played the relatives, doctor on call, and patient when it was more appropriate than using a patient simulator (Laerdal SimMan/SimBaby) in the simulated community setting and paediatric or adult emergency department. Each session had 3 to 4 of the following disciplines represented (Adult/Children/Learning Disability Nursing, Paramedic, Radiography, Physiotherapy) and each student observed and took part in one long and relevant high-fidelity scenario. Half the students were randomly selected to fill in a 40-item questionnaire testing their knowledge of other disciplines before the simulation (control group) and the others after (experimental group). Students were assessed on the questions relating to the disciplines represented in their session. Results: By the end of the project 95 questionnaires were collected of which 45 were control group students (Questionnaire before simulation) and 50 experimental group students (Questionnaire after simulation). Both groups were comparable in terms of gender, discipline and age representation. Participants were: Adult nurses (n=46), Children’s nurses (n=4), Learning Disability nurses (n=7), Nurses, Paramedics (n=8), Radiographers (n=20), Physiotherapists (n=8). 15 sessions were run with an average of around 7 participants and at least 3 disciplines represented. The knowledge test results about the disciplines represented was significantly different between the control and experimental groups (Control 73.80%, 95% CI 70.95-76.65; and Experimental 78.81%, 95% CI 75.76-81.87, p=0.02). In addition, there were sometimes reliable differences between the groups in their view of multidisciplinary training; confidence about working as part of a multidisciplinary team was 3.33 (SD=0.80, Control) and 3.79 (SD=0.90, Experimental), p=0.011; their anticipation that working as part of a multidisciplinary team would make them feel anxious was 2.67 (SD=1.17, Control) and 2.25 (SD=1.04, Experimental), p=0.073; their perception of their knowledge of what other healthcare professionals can or cannot do was 3.00 (SD=0.91, Control) and 3.35 (SD=0.93, Experimental), p=0.066; their view that learning with other healthcare students before qualification will improve their relationship after qualification was 3.93 (SD=1.14, Control) and 4.33 (SD=0.81, Experimental), p=0.055; their opinion about interprofessional learning helping them to become better team workers before qualification was 3.96 (SD=1.24, Control) and 4.42 (SD=0.77, Experimental), p=0.036. Conclusions: Although the difference is relatively small (~5%), the results demonstrate that students gained confidence and knowledge about the skills and role of other disciplines involved in their session. Through simulation, the positivism of students about different aspects of learning or working with other healthcare disciplines has significantly improved. Students gained knowledge of other disciplines simply by being given the opportunity to take part in a multiprofessional scenario and observe another one. The results of the test and their reported perception about multidisciplinary team working suggest that they are better prepared to enter the healthcare workforce. Discussions during the debriefings highlighted the fact that multidisciplinary training is important. The main challenges identified have been the voluntary student attendance and timetabling issues forcing us to run the session late in the day due to the number of disciplines involved in each session and their different placement rota. The aim is now to timetable formally this session within their curriculum. Introducing simulation in the undergraduate curriculum should facilitate its implementation as Continuing Professional Development once these students become qualified healthcare professionals
Studies on Degradation of Reactive Red 135 Dye in Wastewater using Ozone
AbstractAn attempt has been made in this paper to identify effects of efficient ozonation processes for decolorization and/or degradation of organic pollutants for environmental protection. In dyes, since the chromosphere groups with conjugated double bonds, which are responsible for color, can be broken down by ozone either directly or indirectly forming smaller molecules, thereby decreasing the color of the effluents. Ozonation and its combinations are effective for wastewater treatment. In the present study 99.9% decolorization of RR 135 was accomplished by ozonation. The time required for the complete decolorization gradually increase with increase in the initial dye concentration. For RR135 after 48, 55 and 67min reaction time, complete decolorizaton was achieved at initial dye concentrations of 500, 1000 and 1500mg/L, respectively. The COD removal efficiency gradually decreased with an increase in the initial concentration. For RR135 after 60, 65 and 87min reaction time, the COD removal percentage was 66.66%, 61% and 56.64% at initial dye concentrations of 500, 1000 and 1500mg/L, respectively
Studies on Removal of Dyes from wastewater using Electro-coagulation Process
Electro-coagulation (EC) is one of the effective
techniques to remove colour, COD and organic compounds from
wastewater. In this paper electro coagulation technique has been
used for the removal of colour and COD from dye solutions
containing Direct Black 22 and Acid Red 97 using batch process.
For batch the process effect of operational parameters such as
current density, initial pH of the solution, time of electrolysis and
electrode materials were studied to attempt maximum reduction
of COD and colour. Different electrodes used in practical work
were iron, and aluminium with D.C. current
Activity of Antioxidants from Crocus sativus L. Petals: Potential Preventive Effects towards Cardiovascular System
The petals of the saffron crocus (Crocus sativus L.) are considered a waste material in saffron production, but may be a sustainable source of natural biologically active substances of nutraceutical interest. The aim of this work was to study the cardiovascular effects of kaempferol and crocin extracted from saffron petals. The antiarrhythmic, inotropic, and chronotropic effects of saffron petal extract (SPE), kaempferol, and crocin were evaluated through in vitro biological assays. The antioxidant activity of kaempferol and crocin was investigated through the 2',7'-dichlorodihydrofluorescein diacetate (DCFH-DA) assay using rat cardiomyoblast cell line H9c2. The MTT assay was applied to assess the effects of kaempferol and crocin on cell viability. SPE showed weak negative inotropic and chronotropic intrinsic activities but a significant intrinsic activity on smooth muscle with a potency on the ileum greater than on the aorta: EC50 = 0.66 mg/mL versus EC50 = 1.45 mg/mL. Kaempferol and crocin showed a selective negative inotropic activity. In addition, kaempferol decreased the contraction induced by KCl (80 mM) in guinea pig aortic and ileal strips, while crocin had no effect. Furthermore, following oxidative stress, both crocin and kaempferol decreased intracellular ROS formation and increased cell viability in a concentration-dependent manner. The results indicate that SPE, a by-product of saffron cultivation, may represent a good source of phytochemicals with a potential application in the prevention of cardiovascular diseases
[89Zr]Oxinate4 for long-term in vivo cell tracking by positron emission tomography
Purpose 111In (typically as [111In]oxinate3) is a gold standard
radiolabel for cell tracking in humans by scintigraphy. A long
half-life positron-emitting radiolabel to serve the same purpose
using positron emission tomography (PET) has long
been sought. We aimed to develop an 89Zr PET tracer for cell
labelling and compare it with [111In]oxinate3 single photon
emission computed tomography (SPECT).
Methods [89Zr]Oxinate4 was synthesised and its uptake and
efflux were measured in vitro in three cell lines and in human
leukocytes. The in vivo biodistribution of eGFP-5T33 murine
myeloma cells labelled using [89Zr]oxinate4 or [111In]oxinate3
was monitored for up to 14 days. 89Zr retention by living
radiolabelled eGFP-positive cells in vivo was monitored by
FACS sorting of liver, spleen and bone marrow cells followed
by gamma counting.
Results Zr labelling was effective in all cell types with yields
comparable with 111In labelling. Retention of 89Zr in cells
in vitro after 24 h was significantly better (range 71 to
>90 %) than 111In (43–52 %). eGFP-5T33 cells in vivo
showed the same early biodistribution whether labelled with
111In or 89Zr (initial pulmonary accumulation followed by
migration to liver, spleen and bone marrow), but later translocation
of radioactivity to kidneys was much greater for 111In.
In liver, spleen and bone marrow at least 92 % of 89Zr
remained associated with eGFP-positive cells after 7 days
in vivo.
Conclusion [89Zr]Oxinate4 offers a potential solution to the
emerging need for a long half-life PET tracer for cell tracking
in vivo and deserves further evaluation of its effects on survival
and behaviour of different cell types
Beyond the Visible: Jointly Attending to Spectral and Spatial Dimensions with HSI-Diffusion for the FINCH Spacecraft
Satellite remote sensing missions have gained popularity over the past fifteen years due to their ability to cover large swaths of land at regular intervals, making them ideal for monitoring environmental trends. The FINCH mission, a 3U+ CubeSat equipped with a hyperspectral camera, aims to monitor crop residue cover in agricultural fields. Although hyperspectral imaging captures both spectral and spatial information, it is prone to various types of noise, including random noise, stripe noise, and dead pixels. Effective denoising of these images is crucial for downstream scientific tasks. Traditional methods, including hand-crafted techniques encoding strong priors, learned 2D image denoising methods applied across different hyperspectral bands, or diffusion generative models applied independently on bands, often struggle with varying noise strengths across spectral bands, leading to significant spectral distortion. This paper presents a novel approach to hyperspectral image denoising using latent diffusion models that integrate spatial and spectral information. We particularly do so by building a 3D diffusion model and presenting a 3-stage training approach on real and synthetically crafted datasets. The proposed method preserves image structure while reducing noise. Evaluations on both popular hyperspectral denoising datasets and synthetically crafted datasets for the FINCH mission demonstrate the effectiveness of this approach.
Our code can be found at github.com/utat-ss/FINCH-destripin
Prevalence, predictors, and outcomes of patient prosthesis mismatch in women undergoing TAVI for severe aortic stenosis: Insights from the WIN-TAVI registry
Objective: To evaluate the incidence, predictors and outcomes of female patients with patient-prosthesis mismatch (PPM) following transcatheter aortic valve intervention (TAVI) for severe aortic stenosis (AS). Background: Female AS TAVI recipients have a significantly lower mortality than surgical aortic valve replacement (SAVR) recipients, which could be attributed to the potentially lower PPM rates. TAVI has been associated with lower rates of PPM compared to SAVR. PPM in females post TAVI has not been investigated to date. Methods: The WIN-TAVI (Women's INternational Transcatheter Aortic Valve Implantation) registry i
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