The end-to-end performance of multi-branch dual-hop wireless communication systems with non-regen... more The end-to-end performance of multi-branch dual-hop wireless communication systems with non-regenerative relays and equal gain combiner (EGC) at the destination over independent Nakagami-m fading channels is studied. We present new closed form expressions for probability distribution function (PDF) and cumulative distribution function (CDF) of end-to-end signal to noise ratio (SNR) per branch in terms of Meijer's G function. From these
Clinical Cardiology and Cardiovascular Interventions, 2020
Transvenous implantable cardioverter-defibrillators (TV-ICD) have electrode failure rates as high... more Transvenous implantable cardioverter-defibrillators (TV-ICD) have electrode failure rates as high as 20% over a 10 year followup with 12% as a result of lead fractures. [1] The development of the Boston Scientific subcutaneous ICD (S-ICD) promoted the benefit of significantly reduced post-implant complication rates. [4] We present the first reported case of a S-ICD electrode failure secondary to partial fracture as a result of mechanical trauma.
The Saint Jude Riata lead has a history of insulation failure with lead externalization, resultin... more The Saint Jude Riata lead has a history of insulation failure with lead externalization, resulting in several models to be recalled by the US FDA in 2011. The Canadian Heart Rhythm Society surveyed 4358 patients with Riata 8-F & Riata ST over 5 years and found 4.6% had electrical abnormalities; 8.0% of these patients had radiographic evidence of externalization. A few cases report externalization of a cable from a Riata lead into the pulmonary artery (PA), however the cable is still attached to the lead and able to be extracted as one unit. Our case report shows externalization of a cable from a Riata lead that is situated in the PA which is completely severed from the lead.
Journal of the American Heart Association, Jan 23, 2018
Prior studies have shown that survivors of acute myocardial infarction (AMI) complicated by cardi... more Prior studies have shown that survivors of acute myocardial infarction (AMI) complicated by cardiogenic shock are likely to have increased risk of readmissions in the early post-discharge period. However, the contemporary prevalence, reasons, and predictors of 30-day readmissions are not well known. Hospitalizations for a primary diagnosis of AMI complicated by cardiogenic shock, and discharged alive, were identified in the 2013 and 2014 Nationwide Readmissions Databases. Prevalence and reasons for 30-day unplanned readmissions were investigated. A hierarchical logistic regression model was used to identify independent predictors of 30-day readmissions. Among 1 116 933 patient hospitalizations with AMI, 39 807 (3.6%) had cardiogenic shock and were discharged alive. Their 30-day readmission rate was 18.6%, with a median time for readmission 10 days post discharge. Predictors of readmission included: non-ST-segment elevation myocardial infarction, female sex, low-income status, nonpri...
The effect of nutrient starvation on lipid accumulation of Dunaliella salina A9 was studied. In n... more The effect of nutrient starvation on lipid accumulation of Dunaliella salina A9 was studied. In nutrient starvation, cell colour changed from green to yellow (or orange) and cell growth reached stationary phase after 9 days of the culture. The study showed that under nutrient stress, decreased in cell growth is accompanied by carotenoid biosynthesis and lipid content of Dunaliella salina. The results of this study can be used to increase carotenoid and lipid production in microalgae for functional food and biofuel in the future.
The present invention relates to a novel type of non-corrosive geopolymer cement in which said ce... more The present invention relates to a novel type of non-corrosive geopolymer cement in which said cement comprises a metakaolin or a mixture of metakaolin and of an aluminosilicate that is not thermally activated, in a weight ratio within the range extending from around 40:60 to around 80:20, and an alkaline silicate solution having an M2O:SiO2 molar ratio within the range extending from 0.51 to 0.60, M representing Na or K and also the use of a superplasticizer comprising a crosslinked polymer of acrylic acid in the manufacture of geopolymer cement.
The end-to-end performance of multi-branch dual-hop wireless communication systems with non-regen... more The end-to-end performance of multi-branch dual-hop wireless communication systems with non-regenerative relays and equal gain combiner (EGC) at the destination over independent Nakagami-m fading channels is studied. We present new closed form expressions for probability distribution function (PDF) and cumulative distribution function (CDF) of end-to-end signal to noise ratio (SNR) per branch in terms of Meijer's G function. From these
Clinical Cardiology and Cardiovascular Interventions, 2020
Transvenous implantable cardioverter-defibrillators (TV-ICD) have electrode failure rates as high... more Transvenous implantable cardioverter-defibrillators (TV-ICD) have electrode failure rates as high as 20% over a 10 year followup with 12% as a result of lead fractures. [1] The development of the Boston Scientific subcutaneous ICD (S-ICD) promoted the benefit of significantly reduced post-implant complication rates. [4] We present the first reported case of a S-ICD electrode failure secondary to partial fracture as a result of mechanical trauma.
The Saint Jude Riata lead has a history of insulation failure with lead externalization, resultin... more The Saint Jude Riata lead has a history of insulation failure with lead externalization, resulting in several models to be recalled by the US FDA in 2011. The Canadian Heart Rhythm Society surveyed 4358 patients with Riata 8-F & Riata ST over 5 years and found 4.6% had electrical abnormalities; 8.0% of these patients had radiographic evidence of externalization. A few cases report externalization of a cable from a Riata lead into the pulmonary artery (PA), however the cable is still attached to the lead and able to be extracted as one unit. Our case report shows externalization of a cable from a Riata lead that is situated in the PA which is completely severed from the lead.
Journal of the American Heart Association, Jan 23, 2018
Prior studies have shown that survivors of acute myocardial infarction (AMI) complicated by cardi... more Prior studies have shown that survivors of acute myocardial infarction (AMI) complicated by cardiogenic shock are likely to have increased risk of readmissions in the early post-discharge period. However, the contemporary prevalence, reasons, and predictors of 30-day readmissions are not well known. Hospitalizations for a primary diagnosis of AMI complicated by cardiogenic shock, and discharged alive, were identified in the 2013 and 2014 Nationwide Readmissions Databases. Prevalence and reasons for 30-day unplanned readmissions were investigated. A hierarchical logistic regression model was used to identify independent predictors of 30-day readmissions. Among 1 116 933 patient hospitalizations with AMI, 39 807 (3.6%) had cardiogenic shock and were discharged alive. Their 30-day readmission rate was 18.6%, with a median time for readmission 10 days post discharge. Predictors of readmission included: non-ST-segment elevation myocardial infarction, female sex, low-income status, nonpri...
The effect of nutrient starvation on lipid accumulation of Dunaliella salina A9 was studied. In n... more The effect of nutrient starvation on lipid accumulation of Dunaliella salina A9 was studied. In nutrient starvation, cell colour changed from green to yellow (or orange) and cell growth reached stationary phase after 9 days of the culture. The study showed that under nutrient stress, decreased in cell growth is accompanied by carotenoid biosynthesis and lipid content of Dunaliella salina. The results of this study can be used to increase carotenoid and lipid production in microalgae for functional food and biofuel in the future.
The present invention relates to a novel type of non-corrosive geopolymer cement in which said ce... more The present invention relates to a novel type of non-corrosive geopolymer cement in which said cement comprises a metakaolin or a mixture of metakaolin and of an aluminosilicate that is not thermally activated, in a weight ratio within the range extending from around 40:60 to around 80:20, and an alkaline silicate solution having an M2O:SiO2 molar ratio within the range extending from 0.51 to 0.60, M representing Na or K and also the use of a superplasticizer comprising a crosslinked polymer of acrylic acid in the manufacture of geopolymer cement.
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