251 research outputs found
Editorial: Critical care applications: bridging high, medium and low-income settings.
No full textThis Research Topic explores the advancement of critical care in low- and middle-income countries (LMICs) with a focus on processes and technologies. Farré et al. introduce a cost-effective method for developing pneumotachographs to measure flow and volume in mechanical ventilation, while Herbst et al. address issues like hypoxemia management and oxygen conservation. Barros-Poblete et al. highlight improvements in early mobilization practices in LMIC ICUs, and Brotherton et al. compare prediction models for in-hospital mortality in LMIC settings. Additionally, Ab Rahman et al. provide insights into COVID-19 outcomes in Malaysian ICUs. These studies underscore the importance of context-specific research and the potential for LMIC innovations to enhance care globally
Development of a virtual reality milling machine for knowledge learning and skill training
No full textCurrent methods of training personnel on high cost machine tools involve the use of both classroom and hands on practical training. The practical training required the operation of costly equipment and the trainee has to be under close personnel supervision. The main aim of this project is to reduce the amount of practical training and its inherent cost, time, danger, personal injury risk and material requirements by utilising a virtual reality technology.
In this study, an investigation into the use of Virtual reality for training operators and students to use the Milling Machine was carried out. The investigation has been divided into two sections: first the development of Milling Machine in the 3D virtual environment, where the real machine was re-constructed in the virtual space.
This has been carried out by creating objects and assembling them together. The complete Milling machine was then properly modelled and rendered so it could be viewed from all viewpoints.
The second section was to add motion to the virtual world. The machine was made of functions as for the real machine. This was achieved by attaching Superscape Control Language (SCL) to the objects. The developed Milling machine allows the users to choose the material, speed and feed rate. Upon activation, the virtual machine will be simulated to carry out the machining process and instantaneous data on the machined part can be generated.
The results were satisfactory, the Milling Machine was modelled successfully and the machine was able to perform according to task set. Using the developed Virtual Model, the ability for training students and operators to use the Milling Machine has been achieved
Discerning goodness via nonverbal cues: perspectives from high-context cultures
No full textThe current study ventured to explore nonverbal behavioral cues associated with the construct of goodness. In a focus-group setting, perceivers from the high-context cultures of Malaysia and China were asked to define goodness and discuss how they interpreted goodness in others. Across all groups (Malaysian and Chinese) a recurring theme consisting of dynamic cues, static cues and paralinguistic cues was frequently cited, with emphasis across the spectrum. The study findings have implications for the areas of nonverbal communication, social judgments, and person perception
Miriam Sampaio : Murmur
No full textThis publication stems from artist Sampaio’s residency at Centre de production Daïmõn in the fall of 2001. The resulting exhibition comprised photographs taken by the artist while in Portugal where she was researching her Judaic-Portuguese roots. Hashmi comments on this work in a personal and poetic text that includes many quotes from the artist. Texts in English and French. Biographical notes on artist and author. 2 bibl. ref
Investigation into coatings produced from nanoparticle blended feedstock for rotating equipment repair applications
No full textCoating of carbon steel with conventional and nano particle blended feedstock material is considered in relation to repair applications of rotating equipment. Gas Metal Arc Welding (GMAW) and Wire Arc Spray (WAS) processes are used to produce the coatings on carbon steel workpieces. The wire arc sprayed workpieces are heat treated at temperature similar to the operating temperature of hot-path components of power gas turbines. The microstructure and metallurgy of the workpieces are examined using the Scanning Electron Microscope (SEM), Optical Microscope, Energy Dispersive Spectroscopy (EDS), X-ray Diffraction (XRD). The indentation tests are carried out to assess the microhardness variation across the coatings. In the case of coatings produced by GMAW, it is found that fine structures are formed in the coating due to the presence of nano particles and they resulted in increased microhardness of the coatings. In the case of the wire arc sprayed workpieces, the formation of dimples like structure at the surface increases the surface roughness of the coatings. In addition, the microhardness of the resulting coating is significantly higher than that of the base material. The heat treatment does not alter the microstructure and microhardness of the coatings significantly
Perioperative and acute care transesophageal echocardiography (TOE)
No full textIn Pakistan perioperative transoesophageal echocardiography (TOE) during cardiac surgery is available in a few centers with reliance on cardiologists and cardiac technicians and its use in noncardiac surgery and intensive care units is very limited. In view of the increasing popularity of TOE based on obvious benefits this review is presented with an aim to evaluate the current indications and potential benefits of using TOE during anesthesia for cardiac and non-cardiac surgery and the intensive care units and compare TOE with pulmonary artery catheter (PAC) and transthoracic echocardiography (TTE) as an hemodynamic monitor in the acute care setting
World Sepsis Day in Pakistan
No full textCelebration of World Sepsis Day at a global level started just three years back, and the immense importance of this celebration was not lost to Pakistan Society of Anaesthesiologists (PSA) and Pakistan Society of Critical Care Medicine (PSCCM). Both these organizations were quick to grasp the opportunity to use it to achieve the common goal of enhancing the level of awareness about sepsis and prevention of sepsis among the healthcare professionals as well as higher authorities. The result was multiple international academic events being organized regularly across the country as well as the adoption of National Sepsis Guidelines. The struggle to create more awareness about sepsis continues
Investigation into laser re-melting of inconel 625 HVOF coating blended with WC
No full textHigh velocity oxy-fuel (HVOF) spraying of Diamalloy 1005 powders mixed with WC particles onto steel (304) is considered and laser re-melting of the resulting coatings is examined. Laser re-melting process is modeled to determine the melt layer thickness while temperature increase is formulated using the Fourier heating law. The morphological and metallurgical analyses prior and post laser re-melting process are carried out using scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). X-ray diffraction (XRD) technique is used to determine the residual stress developed in the coating while the analytical formulation is adopted to predict the residual stress levels at the coating base material interface. The indentation tests are carried out to determine the Young’s modulus and fracture toughness of the coating prior to laser re-melting. Corrosion resistance of coating is measured using potentiodynamic polarization technique prior and post laser treatment process. The predictions of the melt layer thickness are in good agreement with experimental results. The presence of WC particles modifies temperature rise and its gradient in the coating while affecting the Young’s modulus, residual stress levels, and fracture toughness of the coating. The differences in the thermal properties of Inconel 625 powders and WC particles result in formation of small size cellular structure through polyphase solidification. WC dissolution in the central region of the large polycrystalline cells is observed due to the loss of carbon through carbonic gas formation. The results of corrosion tests prevail that significant improvement of corrosion resistance can be achieved after laser treatment process
Predicting interethnic bridging social capital in youth ethnic-diversity engagement: the role of interethnic interaction and intercultural sensitivity
No full textIn this study, the authors examined the relationships between interethnic interaction, intercultural sensitivity and interethnic bridging social capital among students of different ethnicities at a Malaysian public university. Results of the regression analysis on data from 447 self-administered questionnaires revealed that while interethnic interaction and intercultural sensitivity are significantly correlated with interethnic bridging social capital at the bivariate level, only intercultural sensitivity has a direct relationship and significantly predicts interethnic bridging social capital. The finding underscores the role of intercultural sensitivity on interethnic bridging social capital development through ethnic diversity engagement
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