Right ventricular myocardial infarction: The electrocardiography (ECG) pattern

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EXTENDING THE ROLE OF ARCHITECTURE INTERVENTION ACROSS THE DISASTER LIFE CYCLE

Disasters have been a common occurrence since the beginning of time, yet they are increasing phenomenally worldwide and especially in developing countries. Factors that led to the cause of destructive disasters are often complex and interrelated; researchers detect human influence and rapid development is intensifying the damage and scale of disaster-prone areas through urban sprawl and human interference. Observing the disaster life cycle, it is made up of four stages: preparedness stage, resilience and mitigation stage, response and relief stage, and finally reconstruction and recovery stage. The main focus usually lies in the response and relief stage which comes immediately after the disaster has struck. The aim of this research is to extend the architectural intervention across all stages of the disaster; using a dynamic disaster response system made up of three components, primarily a disaster educational centre that can reliably respond to any disaster occurrence using a network of prebuilt structures spread across the perimeters of disaster-prone areas. The structures help with strategic preparedness, promote resilience, mitigating damage and spread, provide recovery and relief, and aid in eventual reforestations and reconstructions. As well as, designed to host an adaptable module of prefabricated units that can be easily mobilized and transported to plug-in to the host structures; the hosting structures will also provide a mechanical response across all stages of the disaster life cycle with a minimum disruptive footprint. Utilizing primarily the inductive method, this research will analyse the effectiveness of this unconventional architectural design approach in how it functions both reactively and strategically across all stages of any disaster life cycle. The paper also relies on analytical and deductive methods to help portray the effectiveness of the unconventional architectural design approach in how it functions both reactively and strategically across all stages of any disaster life cycle

An Autonomous Wearable Sensor Node for Long-Term Healthcare Monitoring Powered by a Photovoltaic Energy Harvesting System

In this paper, an autonomous wearable sensor node is developed for long-term continuous healthcare monitoring. This node is used to monitor the body temperature and heart rate of a human through a mobile application. Thus, it includes a temperature sensor, a heart pulse sensor, a low-power microcontroller, and a Bluetooth low energy (BLE) module. The power supply of the node is a lithium-ion rechargeable battery, but this battery has a limited lifetime. Therefore, a photovoltaic (PV) energy harvesting system is proposed to prolong the battery lifetime of the sensor node. The PV energy harvesting system consists of a flexible photovoltaic panel, and a charging controller. This PV energy harvesting system is practically tested outdoor under lighting intensity of 1000 W/m2. Experimentally, the overall power consumption of the node is 4.97 mW and its lifetime about 246 hours in active-sleep mode. Finally, the experimental results demonstrate long-term and sustainable operation for the wearable sensor node

An Autonomous Wearable Sensor Node for Long-Term Healthcare Monitoring Powered by a Photovoltaic Energy Harvesting System

oai:ojs.ijet.ise.pw.edu.pl:article/2503In this paper, an autonomous wearable sensor node is developed for long-term continuous healthcare monitoring. This node is used to monitor the body temperature and heart rate of a human through a mobile application. Thus, it includes a temperature sensor, a heart pulse sensor, a low-power microcontroller, and a Bluetooth low energy (BLE) module. The power supply of the node is a lithium-ion rechargeable battery, but this battery has a limited lifetime. Therefore, a photovoltaic (PV) energy harvesting system is proposed to prolong the battery lifetime of the sensor node. The PV energy harvesting system consists of a flexible photovoltaic panel, and a charging controller. This PV energy harvesting system is practically tested outdoor under lighting intensity of 1000 W/m2. Experimentally, the overall power consumption of the node is 4.97 mW and its lifetime about 246 hours in active-sleep mode. Finally, the experimental results demonstrate long-term and sustainable operation for the wearable sensor node

Studies on the microbiology of silicon.

A study was made of the interactions between the element silicon, mainly as silicic acid, and various microbial processes. The effect of silicon compounds on fungal growth was determined under both oligotrophic and nutrient-rich (copiotrophic) conditions. Mycelium of Aspergillus oryzae was grown from a spore inoculum added to ultra-pure water (upw) containing silicon compounds, but not in upw alone. Growth of other fungi also only occurred in upw when silicon compounds were added. Increased growth of fungi also followed the addition of silicon compounds to Czapek Dox medium. Silicic acid also increased the protein content of fungi grown under such nutrient-rich conditions. The fungi solubilised the insoluble silicon compounds under both oligotrophic and copiotrophic conditions. Silicon was not however, accumulated by fungi as electron-dense hyphal bodies. Addition of silicic acid to nutrient rich media also increased the growth of species of Streptomyces but decreased the chlorophyll content of the alga, Dunaliella parva; the growth of two yeasts and the bacteria, E. colt and S. aureus also was not affected by silicon addition; the observed stimulatory effect therefore appears to be restricted to filamentous microorganisms. The effect of silicon compounds on various microbial processes was also investigated. Silicic acid stimulated the production of citric acid by Aspergillus niger, but decreased nitrification and sulphur oxidation in this fungus. Silicic acid addition also led to a reduction in antibiotic production by species of Streptomyces. Studies were initiated to study the possibility that fungi and bacteria can erode the surface of both bulk and porous silicon wafers. While no such surface erosion was evident, we observed that E. coif underwent extensive extreme pleomorphism when growing under starvation conditions for up to 14 days. Such pleomorphism consisted of the formation of bulbous protrusions from the normal rod, dumbbell-shaped cells and long filaments, these were up to 50g in length (compared to the normal 1-3μ, rods). Such filamentation was clearly caused by the inability of the bacterial cells (rods) to separate on division. The observed bacterial pleomorphism was not however, silicon-specific, as it was also found to occur on titanium and glass surfaces. Such extreme pleomorphism may have important implications in relation to the growth of E. coli in low nutrient environments and may influence the bacterium's ability to affect pathogenesis. While the microbiology of silicon has largely been neglected the results of this thesis show that there is considerable interaction between this element and microbial growth. Future studies should in particular be directed towards determining if silicon can be used as an energy source by microorganisms. Additionally, the observed phenomenon of extreme pleomorphism in E. coil is clearly worthy of further study

Integrated mixing machine for sulfur concrete production

The production of sulfur concrete (SC) from its ingredient materials requires controlled heating and mixing conditions at a temperature level of 130°-150 °C. Although this process considered to be common and applicable at the industrial level, it is difficult at the laboratory/research level. This paper presents the design and manufacturing details of a relatively inexpensive laboratory machine for heating and mixing sulfur concrete. The different components of the machine are described in detail to help researchers to produce high-quality sulfur concrete. In this work, the quality of the machine is verified through experimental testing of the physical and mechanical properties of different prepared SC mixtures. Thus, the homogeneity and mixing efficiency required a certain level of workability, and the full controlling of temperature during the production process has been realized. The machine is proven to be efficient, safe, and durable. The comparative study on the physical and mechanical properties of the prepared SC relative to other SC of the same ingredients but heated and mixed through other small-scale machines, showed the superiority of the mixing machine in the production of high strength concrete

Analysis of the factors related to mortality in patients with primary brain and central nervous system tumors

BACKGROUND: The present study aimed to assess the factors associated with the mortality of patints with brain tumor surgery at Be’sat Hospital in Sanandaj, Kurdistan, Iran.METHODS: In this prospectively cross-sectional study, 108 patients diagnosed with brain tumor and followed by a surgery during April to December of 2014 were recruited. Eighteen cases were excluded from the study due to lack of information about their treatment outcomes. Patients’ information including age, gender, tumor type, tumor location, type of treatment, and extent of resection was collected by a checklist. Clinical outcome of the patients in six months after surgery was determined through phone calling to patients. All analyses conducted in SPSS software using logistic regression.RESULTS: Forty-seven (52.2%) of the studied subjects were women. The age of cases ranged from 3 to 83 years with total mean of 43.4 ± 21.9 years. In six months after treatment, 41 (45.6%) of the treated patients died. After excluding 9 children from final analysis and modeling the data by logistic regression, statistically significant associations were observed between death from central nervous system (CNS) tumor and male gender [odds ratio (OR): 5.25, 95% confidence interval (CI): 1.38–21.99], higher age (OR: 1.07, 95% CI: 1.02–1.13), partial vs. total resection (OR: 20.24, 95% CI: 1.21–337.51), and high malignant potential tumors (OR: 14.77, 95% CI: 4.85–45.02).CONCLUSION: The results showed that both demographic (advanced age and male gender) and clinical factors (high malignant potential tumors and partial removal of tumor) related to the worse outcome in patients with primary CNS tumors during six months after surgery