Toronto Metropolitan University Open Journals
Not a member yet
1204 research outputs found
Sort by
Mapping the experiences of patient centered care for nurses in the role of patients: A scoping review
No full textBackground. Patient- or person-centred care (PCC) has become a core competency that healthcare professionals must develop to deliver high-quality care. PCC enhances positive patient perceptions of care, promoting patient safety and overall health outcomes. Yet, little is known about PCC from nurses who become patients. Aim. To map nurse patients’ experiences and perceptions of PCC and how their illness experiences influence nursing practice after recovery. Methods. A scoping review methodology was implemented. Scopus, PubMed, Ovid Medline, Web of Science, and the Cumulative Index to Nursing and Allied Health Literature (CINAHL) were searched for relevant literature using a comprehensive list of keywords, including nurse patient, nurse-as-patient, person-centred care, person-focused care, hospital, experiences, etc. Thematic analysis was conducted on extracted data, and the results were reported narratively. Results. Thirty-seven (37) studies were included in this review. Four broad themes: experiences of PCC, care practices that promote PCC, the influence of illness experience on nursing practices, and nurse patients’ unique contextual issues were developed, which revealed that nurse patients experienced heightened fear, anxiety, denial, uncertainty, and discomfort when diagnosed with life-threatening illnesses due to their knowledge of the healthcare system. While navigating treatment, most nurse patients experience care that aligns with PCC dimensions (respecting patient dignity, treating patients as persons, providing adequate information, and effective communication). Others received care that deviated from PCC principles, including waiting for long periods to access treatment services, being stereotyped, not being provided enough information, and being less engaged in their care. Furthermore, nurse patients faced unique challenges, including role ambiguity and confidentiality and privacy concerns. Nonetheless, they promoted PCC in their nursing practice after recovery by advocating for patients, serving on healthcare boards, influencing policy change, and becoming peer educators. Conclusion. Research from different nurse patients is needed to deepen our understanding of PCC and how nurse patients’ illness experiences drive quality care and patient safety
PREDICTING STEEL HARDNESS AND MICROSTRUCTURES USING FEED-FORWARD NEURAL NETWORKS
No full textThis project is aimed to predict the hardness of different types of steel using machine learning models based on their chemical compositions and cooling profiles represented as time-temperature pairs. Two approaches were used to represent the cooling profiles as inputs for the models, either as line equations obtained by Lagrange’s interpolation or least square approximation, or as the original time-temperature pairs. The results showed that using the original time-temperature pairs as inputs provided better accuracy in predicting the hardness of steel than the line equation approach. The machine learning models used in the project were able to predict the hardness of different types of steel with high accuracy, as shown by the R2 values obtained
Effect of Peclet number on the Enhancement of Non-Newtonian Nanofluids on Double Lid-Driven Convective Heat Transfer
No full textIn this paper, we investigate the mixed convection of non-Newtonian nanofluids confined in rectangular cavities, with moving horizontal walls and heat fluxes applied to the vertical walls. The objective is to understand how the Peclet number, aspect ratio and power index influence nanofluid enhancement. The results show that the Al2O3 nanoparticles effect on heat transfer depends on aspect ratio of the cavity. The higher the aspect ratio, the more pronounced the negative effect of the nanoparticles. The Peclet number also has a significant impact on the heat transfer, especially with an increase in aspect ratio. An increase in the Peclet number and aspect ratio, as well as a decrease in the power index, leads to an increase in the Nusselt number. Additionally, the Peclet number can reverse the effect of aspect ratio on nanofluid enhancement. This phenomenon manifests itself as an improvement for high aspect ratios beyond a critical Peclet number, despite an increase in apparent viscosity
Validation of CFD and System Codes against Sloshing Experiment in Cylindrical Tank
No full textThe sloshing in a confined tank is essential to evaluate the safety function of floating plants, e.g., offshore floating nuclear power plants (OFNPs). The transient plant behavior has been simulated with nuclear system analysis codes. In turn, the sloshing motion has been simulated with computational fluid dynamics (CFD) codes. Although some system codes can calculate three-dimensional flow, the available features were limited, exceptionally dynamic phasic behaviors, including the sloshing motions. The paper addresses the time-dependent acceleration as body force in the momentum equation of the system code TRACE and the validation of the pressure impact acting on the wall and fixed-roof of the cylindrical tank. The modified TRACE code was validated against the sloshing experiment. In addition, the TRACE code results were compared with CFD code (Star-CCM+) results. Two different methods were compared: the volume of fluid (VOF) method and the two-fluid flow method, namely the Eulerian multiphase model (EMP). The results of the flow models indicate that the free-surface VOF model agrees with the experimental results. However, the fast transient motions are suppressed for the two-flow model in the CFD and TRACE code
Physical and Thermal Properties of Binary (Bi-Ti-O)-TiO2 UHF-Ceramics
No full textDielectric and microwave properties of ceramics based on binary systems Bi2Ti2O7-TiO2 and Bi2Ti4O11-TiO2 were studied. In order to obtain dielectric materials with high stability of temperature coefficient of resonance frequency, high values of dielectric permittivity and quality factor modification of ceramics by chemical elements with different valence and ionic radii was performed. It is established, that on the basis of Bi2Ti4O11-TiO2 system it is possible to receive microwave materials for manufacturing of resonators. It is shown that the introduction of different valence ions in the Bi2Ti2O7-TiO2 system allows to change its basic dielectric parameters in given limits and directed to choose the optimal composition of ceramics for the development of materials that can be used, for example, when creating storage capacitors
Relevance of Studying the Impact of Vehicle Exhaust Gases on the Environment on Various Sections of Urban Streets (on the Example of the City of Tashkent)
No full textThe study of the impact of vehicle exhaust gases on the environment on various sections of urban streets is an important problem of our time. This article discusses the relevance of studying this issue with the example of the city of Tashkent. The results of monitoring atmospheric air pollution in areas of the city of Tashkent with carbon monoxide (CO), nitrogen dioxide (NO2), and other pollutants that were selected for further research are presented
Changes in the Reliability of Seasonal Control Reservoirs for Resource Management
No full textThis study investigates the reliability and management of seasonally managed water reservoirs in Uzbekistan, focusing on technical, hydrological, and ecological factors. Uzbekistan aims to reduce reliance on external water policies by enhancing irrigation stability through interventions like managing and evaluating remedial water reservoirs. The study\u27s methodology involved using wind, wind direction, elevation, discharge volume, wave duration, and frequency data, with wind data sourced from the Uzhydromet agency and other data measured during a field visit to the Kurgontepa water reservoir. The findings suggest that to prevent water overflowing from the reservoir dam, maintaining the water level below 562.4 m and raising it to 565.55 m after floodwater release is recommended. Restricting any increase beyond these thresholds until the dam is repaired is imperative. Comparative analysis under different conditions highlighted differences in wind availability, recorded speeds, reservoir depths, and wave characteristics, crucial for reservoir operation and dam safety strategies
Analytical Review of Scientific Research on the Kinematics and Dynamics of Cam Criteria
No full textCam mechanisms are widely used in various engineering systems where it is necessary to convert circular motion into linear or reverse motion. This analytical review presents the main results of research on the kinematics and dynamics of cam mechanisms carried out in recent years. Scientific work in this area includes analysis of various types of cam mechanisms, their design features, mathematical models and calculation methods. Particular attention is paid to optimizing the parameters of cam mechanisms in order to increase their efficiency, accuracy and reliability. This review article examines cam mechanism dynamics issues such as vibration, shock loads, and dynamic performance. The results of these studies have important practical implications for the development of new mechanisms, increasing their performance and reducing wear. Also, prospects for further research in the field of kinematics and dynamics of cam mechanisms are discussed, including the use of new modeling methods, experimental studies and the development of innovative technologies
