Page 1. Elitist Non-Dominated Sorting GA-II (NSGA-II) as a Parameter-less Multi-Objective Genetic... more Page 1. Elitist Non-Dominated Sorting GA-II (NSGA-II) as a Parameter-less Multi-Objective Genetic Algorithm Khoa Duc Tran Graduate School of Computer and Information Sciences Nova Southeastern University khoa@nova.edu Abstract ...
2008 IEEE Asian Solid-State Circuits Conference, 2008
Page 1. A low-power processor for portable navigation devices: 456 mW at 400 MHz and 24 mW in sof... more Page 1. A low-power processor for portable navigation devices: 456 mW at 400 MHz and 24 mW in software standby mode Khoa Dac Tran¹, Phuong Van Nguyen¹, Hoa Tan Lu¹, Cuong Phuc Phan¹, Quang Hai Phan¹ Hiroyuki ...
The authors' goal was to compare the size and linear density of Purkinje cells in... more The authors' goal was to compare the size and linear density of Purkinje cells in the cerebellar vermis of subjects with and without schizophrenia. Blocks of alcohol-fixed cerebellar vermis were dissected at autopsy from the brains of 14 elderly patients with schizophrenia and 13 elderly subjects with no history of neuropsychiatric illness. The blocks of vermis were sectioned and stained with 1% cresyl violet. The linear density and cross-sectional area of Purkinje cells were measured by using computer-assisted image analysis. The subjects with schizophrenia had been assessed with clinical rating scales within 1 year prior to death. The average cross-sectional areas of Purkinje cells of the patients with schizophrenia were significantly smaller (by 8.3%) than those of the subjects without neuropsychiatric illness. No difference in Purkinje cell linear density was observed between the two groups. Significant correlations were seen between Purkinje cell size and scores on the Mini-Mental State, the Brief Psychiatric Rating Scale, and the antipsychotic drug dose. These data indicate cerebellar involvement in schizophrenia; they are also consistent with reports of reduced neuronal size in other brain regions of patients with schizophrenia. These findings support a model of wide-spread central nervous system abnormality in schizophrenia.
Page 1. Content-Based Retrieval Using a Multi-Objective Genetic Algorithm Khoa Duc Tran Graduate ... more Page 1. Content-Based Retrieval Using a Multi-Objective Genetic Algorithm Khoa Duc Tran Graduate School of Computer and Information Sciences Nova Southeastern University khoa@nova.edu Abstract Content-based retrieval ...
Journal of Pediatric Gastroenterology and Nutrition, 2014
We evaluated the effect of propofol on resting anal sphincter pressure (RP) during anorectal mano... more We evaluated the effect of propofol on resting anal sphincter pressure (RP) during anorectal manometry performed under general anesthesia in 20 children with chronic constipation. After propofol bolus administration, there was a significant decrease in the RP in 95% of children from a mean of 51.5 ± 15.3 to a mean nadir of 21.7 ± 10.5 mmHg (P < 0.001). The new postpropofol RP of 47.0 ± 12.4 mmHg was significantly lower compared with prepropofol RP (P < 0.0001). Propofol should be used with caution as an anesthetic agent for anorectal manometry, given the potential for confounding RP measurements.
Selenium (Se) has contaminated areas in the western USA where pollination is critical to the func... more Selenium (Se) has contaminated areas in the western USA where pollination is critical to the functioning of both agricultural and natural ecosystems, yet we know little about how Se can impact pollinators. In a two-year semi-field study, the weedy plant Raphanus sativus (radish) was exposed to three selenate treatments and two pollination treatments to evaluate the effects on pollinator-plant interactions. Honey bee (Apis mellifera L.) pollinators were observed to readily forage on R. sativus for both pollen and nectar despite high floral Se concentrations. Se treatment increased both seed abortion (14%) and decreased plant biomass (8-9%). Herbivory by birds and aphids was reduced on Se-treated plants, indicating a potential reproductive advantage for the plant. Our study sheds light on how pollutants such as Se can impact the pollination ecology of a plant that accumulates even moderate amounts of Se.
Biochemical and Biophysical Research Communications, 1998
At least two versions of interleukin-1 receptor antagonist generated by alternative splicing are ... more At least two versions of interleukin-1 receptor antagonist generated by alternative splicing are found intracellularly, but their functions remain poorly characterized. During studies aimed at characterizing the expression of these transcripts in human articular cartilage, we detected a variant cDNA species that contained an additional 171 nucleotides within the type I interleukin-1 intracellular receptor antagonist cDNA which interrupted the coding
Objectives To report the clinical manifestations of acute hyperammonemic encephalopathy in adult... more Objectives To report the clinical manifestations of acute hyperammonemic encephalopathy in adult onset ornithine transcarbamylase deficiency (OTCD). Design Case report. Setting Intensive care unit of a tertiary medical centre. Patient A 48-year-old Caucasian male body builder who developed acute loss of consciousness after a febrile illness. Interventions The patient was immediately started on hemodia-filtration, protein elimination and ammonia scavenging medications. Measurements and results Serum ammonium was
Lingual thyroid is a rare embryological abnormality that occurs as a result of failed descent of ... more Lingual thyroid is a rare embryological abnormality that occurs as a result of failed descent of the thyroid gland. We report the case of a 39-year-old male with an incidental finding of a lingual thyroid during intubation for surgery for lower limb fractures. A sleep study indicated an RDI of 38.6, consistent with severe sleep apnoea. The ectopic thyroid was excised via a suprahyoid approach, with resolution of apnoeic symptoms post-operatively. A follow-up sleep study subsequent to his operation confirmed an RDI of 3.7. This is the first time a lingual thyroid causing sleep apnoea has been studied with pre- and post-treatment sleep studies. This is also the first recorded instance of lingual thyroid causing sleep apnoea has been recorded in a male.
Page 1. Elitist Non-Dominated Sorting GA-II (NSGA-II) as a Parameter-less Multi-Objective Genetic... more Page 1. Elitist Non-Dominated Sorting GA-II (NSGA-II) as a Parameter-less Multi-Objective Genetic Algorithm Khoa Duc Tran Graduate School of Computer and Information Sciences Nova Southeastern University khoa@nova.edu Abstract ...
2008 IEEE Asian Solid-State Circuits Conference, 2008
Page 1. A low-power processor for portable navigation devices: 456 mW at 400 MHz and 24 mW in sof... more Page 1. A low-power processor for portable navigation devices: 456 mW at 400 MHz and 24 mW in software standby mode Khoa Dac Tran¹, Phuong Van Nguyen¹, Hoa Tan Lu¹, Cuong Phuc Phan¹, Quang Hai Phan¹ Hiroyuki ...
The authors' goal was to compare the size and linear density of Purkinje cells in... more The authors' goal was to compare the size and linear density of Purkinje cells in the cerebellar vermis of subjects with and without schizophrenia. Blocks of alcohol-fixed cerebellar vermis were dissected at autopsy from the brains of 14 elderly patients with schizophrenia and 13 elderly subjects with no history of neuropsychiatric illness. The blocks of vermis were sectioned and stained with 1% cresyl violet. The linear density and cross-sectional area of Purkinje cells were measured by using computer-assisted image analysis. The subjects with schizophrenia had been assessed with clinical rating scales within 1 year prior to death. The average cross-sectional areas of Purkinje cells of the patients with schizophrenia were significantly smaller (by 8.3%) than those of the subjects without neuropsychiatric illness. No difference in Purkinje cell linear density was observed between the two groups. Significant correlations were seen between Purkinje cell size and scores on the Mini-Mental State, the Brief Psychiatric Rating Scale, and the antipsychotic drug dose. These data indicate cerebellar involvement in schizophrenia; they are also consistent with reports of reduced neuronal size in other brain regions of patients with schizophrenia. These findings support a model of wide-spread central nervous system abnormality in schizophrenia.
Page 1. Content-Based Retrieval Using a Multi-Objective Genetic Algorithm Khoa Duc Tran Graduate ... more Page 1. Content-Based Retrieval Using a Multi-Objective Genetic Algorithm Khoa Duc Tran Graduate School of Computer and Information Sciences Nova Southeastern University khoa@nova.edu Abstract Content-based retrieval ...
Journal of Pediatric Gastroenterology and Nutrition, 2014
We evaluated the effect of propofol on resting anal sphincter pressure (RP) during anorectal mano... more We evaluated the effect of propofol on resting anal sphincter pressure (RP) during anorectal manometry performed under general anesthesia in 20 children with chronic constipation. After propofol bolus administration, there was a significant decrease in the RP in 95% of children from a mean of 51.5 ± 15.3 to a mean nadir of 21.7 ± 10.5 mmHg (P < 0.001). The new postpropofol RP of 47.0 ± 12.4 mmHg was significantly lower compared with prepropofol RP (P < 0.0001). Propofol should be used with caution as an anesthetic agent for anorectal manometry, given the potential for confounding RP measurements.
Selenium (Se) has contaminated areas in the western USA where pollination is critical to the func... more Selenium (Se) has contaminated areas in the western USA where pollination is critical to the functioning of both agricultural and natural ecosystems, yet we know little about how Se can impact pollinators. In a two-year semi-field study, the weedy plant Raphanus sativus (radish) was exposed to three selenate treatments and two pollination treatments to evaluate the effects on pollinator-plant interactions. Honey bee (Apis mellifera L.) pollinators were observed to readily forage on R. sativus for both pollen and nectar despite high floral Se concentrations. Se treatment increased both seed abortion (14%) and decreased plant biomass (8-9%). Herbivory by birds and aphids was reduced on Se-treated plants, indicating a potential reproductive advantage for the plant. Our study sheds light on how pollutants such as Se can impact the pollination ecology of a plant that accumulates even moderate amounts of Se.
Biochemical and Biophysical Research Communications, 1998
At least two versions of interleukin-1 receptor antagonist generated by alternative splicing are ... more At least two versions of interleukin-1 receptor antagonist generated by alternative splicing are found intracellularly, but their functions remain poorly characterized. During studies aimed at characterizing the expression of these transcripts in human articular cartilage, we detected a variant cDNA species that contained an additional 171 nucleotides within the type I interleukin-1 intracellular receptor antagonist cDNA which interrupted the coding
Objectives To report the clinical manifestations of acute hyperammonemic encephalopathy in adult... more Objectives To report the clinical manifestations of acute hyperammonemic encephalopathy in adult onset ornithine transcarbamylase deficiency (OTCD). Design Case report. Setting Intensive care unit of a tertiary medical centre. Patient A 48-year-old Caucasian male body builder who developed acute loss of consciousness after a febrile illness. Interventions The patient was immediately started on hemodia-filtration, protein elimination and ammonia scavenging medications. Measurements and results Serum ammonium was
Lingual thyroid is a rare embryological abnormality that occurs as a result of failed descent of ... more Lingual thyroid is a rare embryological abnormality that occurs as a result of failed descent of the thyroid gland. We report the case of a 39-year-old male with an incidental finding of a lingual thyroid during intubation for surgery for lower limb fractures. A sleep study indicated an RDI of 38.6, consistent with severe sleep apnoea. The ectopic thyroid was excised via a suprahyoid approach, with resolution of apnoeic symptoms post-operatively. A follow-up sleep study subsequent to his operation confirmed an RDI of 3.7. This is the first time a lingual thyroid causing sleep apnoea has been studied with pre- and post-treatment sleep studies. This is also the first recorded instance of lingual thyroid causing sleep apnoea has been recorded in a male.
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