This paper describes real-time cracks characterization and localization inside a Structure Under ... more This paper describes real-time cracks characterization and localization inside a Structure Under Test (SUT) by exploiting Learning by Examples (LBE) strategy in the context of Eddy Current Testing (ECT). Within the framework of LBE, an optimal training set has been generated in offline phase by adopting Partial Least Squares (PLS) feature extraction combined with a customized version of output space filling (OSF). Support Vector Regression (SVR) algorithm is utilized for developing an accurate model based on the training set and subsequently real-time inversion (online phase) has been performed on unknown test set. The robustness of the proposed PLS-OSF/SVR approach is numerically assessed in presence of synthetic noisy test set.
A mangrove community along the oligohaline zone of the Sundarbans Reserve Forest (SRF), Banglades... more A mangrove community along the oligohaline zone of the Sundarbans Reserve Forest (SRF), Bangladesh was selected to study stand structure, biomass accumulation, and carbon storage. Field data were measured from six plots of 2400 m 2 at three different locations. Species diversity and species wise contribution to total biomass carbon (TBC) were also analyzed. Heritiera fomes has maintained its dominance (53.8%, relative density) of the stand. The mean above-and below-ground biomass carbon stock of the mangrove community was 76.8 Mg ha¡1 and 41.1 Mg ha ¡1 , respectively. Avicennia officinalis contributed the highest TBC accumulation. Individuals of different mangrove species having diameter 9.99 cm constituted more than 72% of the mangrove stand but contributed less in carbon accumulation, representing only 15.6% of the TBC. While individuals having diameter in the 10-56 cm range constituted only 28% of stand density but contributed to high carbon accumulation, representing 84.4% of the TBC. Mangrove communities growing along the oligohaline zone of the SRF show high species richness and carbon stock, indicating their ecological significance, This needs to be considered in future decision making processes for the area as well as in understanding the role of SRF on mitigating the effects of climate change.
The test-plate image of an image quality test tool is processed. The processing is based on quali... more The test-plate image of an image quality test tool is processed. The processing is based on quality assurance with the well-established test device ETR-1. A program is developed to analyze the parameters such as contrast, low contrast and resolution automatically. This results in more accurate patient positioning for the On-Board Imager (OBI) system. The contrast and resolution are measured by means of Bresenham’s line algorithm. The low contrast is calculated with the help of binary masking. The modulation transfer function (MTF) is also observed for the system. The developed program imports the Digital Imaging and Communications in Medicine (DICOM) image and returns the image parameters. The program can process the ideal image or the less noisy image. The no-rotation-mode or the slight-rotation-mode of the test-plate can be analyzed.
We compare major factor models and find that the Stambaugh and Yuan (2016) 4-factor model is the ... more We compare major factor models and find that the Stambaugh and Yuan (2016) 4-factor model is the overall winner in the time-series domain. The Hou, Xue, and Zhang (2015) q-factor model takes second place and the Fama and French (2015) 5-factor model and the Barillas and Shanken (2018) 6-factor model jointly take third place. The pairwise cross-sectional R2 and the multiple model comparison tests show that the Hou et al. (2015) q-factor model, the Fama and French (2015) 5-factor and 4-factor models, and the Barillas and Shanken (2018) 6-factor model take equal first place in the horse race.
To study the prevalence of musculoskeletal (MSK) symptoms and disorders among garment workers in ... more To study the prevalence of musculoskeletal (MSK) symptoms and disorders among garment workers in Bangladesh, to look for possible relationships between pain location and type of work performed and to estimate the prevalence of rheumatological diagnoses. A cross-sectional pilot study among 350 garment workers using the COPCORD (Community Oriented Program for Control of Rheumatic Disorders) methodology. Subjects with musculoskeletal pain were examined by rheumatologists for rheumatological diagnosis. The workers were classified into cutting, sewing, finishing and quality control operators. Most of the workers were aged below 35 years (88%) and females (82.9%) and the majority had only primary education (74.6%). The prevalence of MSK pain within 7 days of the interview was 77.1%, a much higher figure than in the general population. The most affected sites were: shoulder (17.9%), lower back (15.2%), neck (13.8%) and knee (10.8%). Multiple regional pain was the commonest finding in 173 of 350 workers. In this pilot study rheumatoid arthritis was diagnosed in 0.9%, undifferentiated arthritis in 1.1%, nonspecific low back pain in 4.6%, soft tissue rheumatism in 3.7%, osteoarthritis in 0.9% and lumbar spondylosis in 1.1%, figures comparable with those observed in the general population; spondyloarthropathy was seen more often, in 1.42%, possibly explained by the small numbers. Musculoskeletal pains are common among garment workers of Bangladesh and may cause morbidity, disability, and work loss. Our findings may be important to plan ergonomic measures preventing complaints and may be of interest for international companies ordering garments in Bangladesh.
In 2017, the American College of Cardiology (ACC) and American Heart Association (AHA) released u... more In 2017, the American College of Cardiology (ACC) and American Heart Association (AHA) released updated guidelines on the definition of hypertension, and blood pressure thresholds for initiation of antihypertensive medication. Our objective was to assess the change in prevalence of hypertension, risk factors, and identify populations recommended for treatment among Bangladeshi adults, based on the 2017 ACC/AHA guidelines. Data for this analysis were collected from a population-based nationally representative sample of 1843 Bangladeshi adults, aged ≥18 years in 2015. Hypertension was defined based on two definitions: the JNC 7 guidelines (SBP ≥ 140 or DBP ≥ 90 mmHg), and the 2017 ACC/AHA guidelines (SBP ≥ 130 mmHg, or DBP ≥ 80 mmHg), or a self-reported diagnosis of hypertension. Based on the 2017 ACC/AHA guidelines, the prevalence of hypertension was 40.7% (95% CI: 38.5-43.0). The prevalence of JNC 7 definition of hypertension was 17.9% (95% CI: 16.2-19.7), indicating a 22.8% increas...
The vote of the people of the United Kingdom to leave the European Union following the referendum... more The vote of the people of the United Kingdom to leave the European Union following the referendum on June 23, 2016, created tremendous uncertainty in the financial markets. This paper documents the stock market interdependence across four major European markets around this rare and unique event. We uncover the characteristics of the volatility spillover dynamics across France, Germany, Switzerland and the United Kingdom using intraday data at 15-minute intervals. Specifically, we quantify four types of volatility spillover measures: total (non-directional) spillovers, gross directional spillovers, net directional spillovers, and net pairwise spillovers. Our results point to considerable interdependence among the four stock markets. We find that France and Germany were in general the net volatility transmitters to others, while Switzerland and the United Kingdom the net receivers from others during January 4, 2016 to September 30, 2016. Around the day of the Brexit referendum, France and the United Kingdom appear to be net transmitters, while Germany and Switzerland net receivers. Our empirical analysis uncovers important information regarding stock market interdependence, which will be beneficial to both policymakers and practitioners.
Review of Quantitative Finance and Accounting, 2016
Given the unique institutional regulations in the Chinese commodity futures market as well as the... more Given the unique institutional regulations in the Chinese commodity futures market as well as the characteristics of the data it generates, we utilize contracts with three months to delivery, the most liquid contract series, to systematically explore volatility forecasting for aluminum, copper, fuel oil, and sugar at the daily and three intraday sampling frequencies. We adopt popular volatility models in the literature and assess the forecasts obtained via these models against alternative proxies for the true volatility. Our results suggest that the long memory property is an essential feature in the commodity futures volatility dynamics and that the ARFIMA model consistently produces the best forecasts or forecasts not inferior to the best in statistical terms. Keywords Out-of-sample predictability Á Long memory time series Á Futures market regulation Á Realized volatility Á Econometric models JEL Classification C5 Á G12 Á G13
This paper investigates the time-series predictability of commodity futures excess returns from f... more This paper investigates the time-series predictability of commodity futures excess returns from factor models that exploit two risk factors-the equally weighted average excess return on long positions in a universe of futures contracts and the return difference between the high-and low-basis portfolios. Adopting a standard set of statistical evaluation metrics, we find weak evidence that the factor models provide out-of-sample forecasts of monthly excess returns significantly better than the benchmark of random walk with drift model. We also show, in a dynamic asset allocation environment, that the information contained in the commodity-based risk factors does not generate systematic economic value to risk-averse investors pursuing a commodity stand-alone strategy or a diversification strategy.
Japanese Journal of Forensic Science and Technology, 2013
The identiˆcation of body ‰uids at crime scenes provides critical evidence that can be used to pr... more The identiˆcation of body ‰uids at crime scenes provides critical evidence that can be used to prove the occurrence of a crime. In this study, the genome proˆling (GP) method was utilized to identify saliva and sweat. We randomly ampliˆed cDNA obtained through the RT PCR approach using RNA samples extracted from saliva and sweat with four diŠerent random primers, and performed temperature gradient gel electrophoresis between 15 65°C. The Sp 2 primer was the only primer which generated the species identiˆcation dots (spiddos) in all body ‰uids. The numbers of spiddos found were 11.6±0.89 in saliva and 3.0±1.73 in sweat, and the body ‰uid type speciˆc spiddos were obtained from electrophoresed gel. Along with previously reported data of semen and vaginal ‰uid, it was indicated that the GP method might distinguish those four kinds of body ‰uids. This novel assay is a simple and economical method. Therefore it may be an eŠective tool for the identiˆcation of body ‰uids at crime scenes. However, further detailed studies, including sensitivity, reproducibility, environmental eŠect and the eŠectiveness of detection from mixed stains are necessary before actual forensic investigations.
IEEE Transactions on Systems, Man, and Cybernetics, 1995
The necessary and sufficient conditions for repeatable pseudoinverse control are now well known. ... more The necessary and sufficient conditions for repeatable pseudoinverse control are now well known. A very simple example of a configuration for planar manipulators that is conservative is also known. It is also known there is no conservative configuration for the most common definition of joint angles. The question remains whether there exists any other conservative case using other definitions of joint angles, or equivalently, for pseudoinverse control using different, but constant, joint norms. This paper addresses this question using a combination of analytical and numerical methods. Such cases have been found, however, the resulting configurations are the same as previously known.
The present study was conducted to evaluate the effects of formulation pH and dose on nasal absor... more The present study was conducted to evaluate the effects of formulation pH and dose on nasal absorption of scopolamine hydrobromide, the single most effective drug available for the prevention of nausea and vomiting induced by motion sickness. Human subjects received scopolamine nasally at a dose of 0.2 mg/0.05 mL or 0.4 mg/0.10 mL, blood samples were collected at different time points, and plasma scopolamine concentrations were determined by LC-MS/MS. Following administration of a 0.2 mg dose, the average Cmax values were found to be 262+/-118, 419+/-161, and 488+/-331 pg/ mL for pH 4.0, 7.0, and 9.0 formulations, respectively. At the 0.4 mg dose the average Cmax values were found to be 503+/-199, 933+/-449, and 1,308+/-473 pg/mL for pH 4.0, 7.0, and 9.0 formulations, respectively. At a 0.2 mg dose, the AUC values were found to be 23,208+/-6,824, 29,145+/-9,225, and 25,721+/-5,294 pg x min/mL for formulation pH 4.0, 7.0, and 9.0, respectively. At a 0.4 mg dose, the average AUC value...
Engineering projects, in general, involve a large number of components and the interaction of mul... more Engineering projects, in general, involve a large number of components and the interaction of multiple technologies. The components included in the product are decided in an iterative design process. In each iteration, interfaces and interface conditions among these components are designed with slack to account for potential variations created when the components and interface values become better known. Iteration proceeds
International Conference on Electrical & Computer Engineering (ICECE 2010), 2010
... York, 2006. [14] Redwan N. Sajjad, K. Alam, and Q. Khosru, Parametrization of silicon nanowi... more ... York, 2006. [14] Redwan N. Sajjad, K. Alam, and Q. Khosru, Parametrization of silicon nanowire effective mass model from sp3d5s* orbital basis calculations, Semiconductor Science and Technology, vol. 24, No.4. 2009. 229
Bangabandhu Sheikh Mujib Medical University Journal, 2010
Histoplasmosis is the most common endemic mycosis in human. It has recently emerged as an importa... more Histoplasmosis is the most common endemic mycosis in human. It has recently emerged as an important opportunistic infection among human immunodeficiency virus (HIV)-infected persons living in areas where it is endemic 1. Histoplasma capsulatum is a dimorphic fungus that remains in a mycelial form at ambient temperatures and grows as yeast at body temperature and transmitted by inhalation of the spores. It enters the reticuloendothelial system and resides in macrophages. Most individuals with intact cellular immunity are asymptomatic. Severe disseminated histoplasmosis develops in people with primary or secondary deficiency of cellular immunity. Its presentation varies depending on the size of the inoculum, host's immune status, and presence of underlying lung disease. Approximately, 10% cases of histoplasmosis develop into progressive disseminated histoplasmosis (PDH). 2 Disseminated histoplasmosis can be fatal if untreated. In Bangladesh it is very uncommon. The successfully treated
Drug addiction and drug abuse, chronic or habitual use of any chemical substance to alter states ... more Drug addiction and drug abuse, chronic or habitual use of any chemical substance to alter states of body or mind for other than medically warranted purposes. Addiction is more often now defined by the continuing, compulsive nature of the drug use despite physical and/or psychological harm to the user and society and includes both licit and illicit drugs, and the term "substance abuse" is now frequently used because of the broad range of substances (including alcohol and inhalants) that can fit the addictive profile. Psychological dependence is the subjective feeling that the user needs the drug to maintain a feeling of well-being; physical dependence is characterized by tolerance (the need for increasingly larger doses in order to achieve the initial effect) and withdrawal symptoms when the user is abstinent. There are a lot of effects of drug addiction to the economy, society, and family. Drug addiction affects individual's physical and mental health. Drug addicts are...
ABSTRACT" In an ever more globalized world, communication and access to information is not a... more ABSTRACT" In an ever more globalized world, communication and access to information is not a luxury within firms, but a most important issue that used to improve collaboration within firms.” Globalizing organizations, outsourcing, mobile work, inter-organizational teams, ...
This paper describes real-time cracks characterization and localization inside a Structure Under ... more This paper describes real-time cracks characterization and localization inside a Structure Under Test (SUT) by exploiting Learning by Examples (LBE) strategy in the context of Eddy Current Testing (ECT). Within the framework of LBE, an optimal training set has been generated in offline phase by adopting Partial Least Squares (PLS) feature extraction combined with a customized version of output space filling (OSF). Support Vector Regression (SVR) algorithm is utilized for developing an accurate model based on the training set and subsequently real-time inversion (online phase) has been performed on unknown test set. The robustness of the proposed PLS-OSF/SVR approach is numerically assessed in presence of synthetic noisy test set.
A mangrove community along the oligohaline zone of the Sundarbans Reserve Forest (SRF), Banglades... more A mangrove community along the oligohaline zone of the Sundarbans Reserve Forest (SRF), Bangladesh was selected to study stand structure, biomass accumulation, and carbon storage. Field data were measured from six plots of 2400 m 2 at three different locations. Species diversity and species wise contribution to total biomass carbon (TBC) were also analyzed. Heritiera fomes has maintained its dominance (53.8%, relative density) of the stand. The mean above-and below-ground biomass carbon stock of the mangrove community was 76.8 Mg ha¡1 and 41.1 Mg ha ¡1 , respectively. Avicennia officinalis contributed the highest TBC accumulation. Individuals of different mangrove species having diameter 9.99 cm constituted more than 72% of the mangrove stand but contributed less in carbon accumulation, representing only 15.6% of the TBC. While individuals having diameter in the 10-56 cm range constituted only 28% of stand density but contributed to high carbon accumulation, representing 84.4% of the TBC. Mangrove communities growing along the oligohaline zone of the SRF show high species richness and carbon stock, indicating their ecological significance, This needs to be considered in future decision making processes for the area as well as in understanding the role of SRF on mitigating the effects of climate change.
The test-plate image of an image quality test tool is processed. The processing is based on quali... more The test-plate image of an image quality test tool is processed. The processing is based on quality assurance with the well-established test device ETR-1. A program is developed to analyze the parameters such as contrast, low contrast and resolution automatically. This results in more accurate patient positioning for the On-Board Imager (OBI) system. The contrast and resolution are measured by means of Bresenham’s line algorithm. The low contrast is calculated with the help of binary masking. The modulation transfer function (MTF) is also observed for the system. The developed program imports the Digital Imaging and Communications in Medicine (DICOM) image and returns the image parameters. The program can process the ideal image or the less noisy image. The no-rotation-mode or the slight-rotation-mode of the test-plate can be analyzed.
We compare major factor models and find that the Stambaugh and Yuan (2016) 4-factor model is the ... more We compare major factor models and find that the Stambaugh and Yuan (2016) 4-factor model is the overall winner in the time-series domain. The Hou, Xue, and Zhang (2015) q-factor model takes second place and the Fama and French (2015) 5-factor model and the Barillas and Shanken (2018) 6-factor model jointly take third place. The pairwise cross-sectional R2 and the multiple model comparison tests show that the Hou et al. (2015) q-factor model, the Fama and French (2015) 5-factor and 4-factor models, and the Barillas and Shanken (2018) 6-factor model take equal first place in the horse race.
To study the prevalence of musculoskeletal (MSK) symptoms and disorders among garment workers in ... more To study the prevalence of musculoskeletal (MSK) symptoms and disorders among garment workers in Bangladesh, to look for possible relationships between pain location and type of work performed and to estimate the prevalence of rheumatological diagnoses. A cross-sectional pilot study among 350 garment workers using the COPCORD (Community Oriented Program for Control of Rheumatic Disorders) methodology. Subjects with musculoskeletal pain were examined by rheumatologists for rheumatological diagnosis. The workers were classified into cutting, sewing, finishing and quality control operators. Most of the workers were aged below 35 years (88%) and females (82.9%) and the majority had only primary education (74.6%). The prevalence of MSK pain within 7 days of the interview was 77.1%, a much higher figure than in the general population. The most affected sites were: shoulder (17.9%), lower back (15.2%), neck (13.8%) and knee (10.8%). Multiple regional pain was the commonest finding in 173 of 350 workers. In this pilot study rheumatoid arthritis was diagnosed in 0.9%, undifferentiated arthritis in 1.1%, nonspecific low back pain in 4.6%, soft tissue rheumatism in 3.7%, osteoarthritis in 0.9% and lumbar spondylosis in 1.1%, figures comparable with those observed in the general population; spondyloarthropathy was seen more often, in 1.42%, possibly explained by the small numbers. Musculoskeletal pains are common among garment workers of Bangladesh and may cause morbidity, disability, and work loss. Our findings may be important to plan ergonomic measures preventing complaints and may be of interest for international companies ordering garments in Bangladesh.
In 2017, the American College of Cardiology (ACC) and American Heart Association (AHA) released u... more In 2017, the American College of Cardiology (ACC) and American Heart Association (AHA) released updated guidelines on the definition of hypertension, and blood pressure thresholds for initiation of antihypertensive medication. Our objective was to assess the change in prevalence of hypertension, risk factors, and identify populations recommended for treatment among Bangladeshi adults, based on the 2017 ACC/AHA guidelines. Data for this analysis were collected from a population-based nationally representative sample of 1843 Bangladeshi adults, aged ≥18 years in 2015. Hypertension was defined based on two definitions: the JNC 7 guidelines (SBP ≥ 140 or DBP ≥ 90 mmHg), and the 2017 ACC/AHA guidelines (SBP ≥ 130 mmHg, or DBP ≥ 80 mmHg), or a self-reported diagnosis of hypertension. Based on the 2017 ACC/AHA guidelines, the prevalence of hypertension was 40.7% (95% CI: 38.5-43.0). The prevalence of JNC 7 definition of hypertension was 17.9% (95% CI: 16.2-19.7), indicating a 22.8% increas...
The vote of the people of the United Kingdom to leave the European Union following the referendum... more The vote of the people of the United Kingdom to leave the European Union following the referendum on June 23, 2016, created tremendous uncertainty in the financial markets. This paper documents the stock market interdependence across four major European markets around this rare and unique event. We uncover the characteristics of the volatility spillover dynamics across France, Germany, Switzerland and the United Kingdom using intraday data at 15-minute intervals. Specifically, we quantify four types of volatility spillover measures: total (non-directional) spillovers, gross directional spillovers, net directional spillovers, and net pairwise spillovers. Our results point to considerable interdependence among the four stock markets. We find that France and Germany were in general the net volatility transmitters to others, while Switzerland and the United Kingdom the net receivers from others during January 4, 2016 to September 30, 2016. Around the day of the Brexit referendum, France and the United Kingdom appear to be net transmitters, while Germany and Switzerland net receivers. Our empirical analysis uncovers important information regarding stock market interdependence, which will be beneficial to both policymakers and practitioners.
Review of Quantitative Finance and Accounting, 2016
Given the unique institutional regulations in the Chinese commodity futures market as well as the... more Given the unique institutional regulations in the Chinese commodity futures market as well as the characteristics of the data it generates, we utilize contracts with three months to delivery, the most liquid contract series, to systematically explore volatility forecasting for aluminum, copper, fuel oil, and sugar at the daily and three intraday sampling frequencies. We adopt popular volatility models in the literature and assess the forecasts obtained via these models against alternative proxies for the true volatility. Our results suggest that the long memory property is an essential feature in the commodity futures volatility dynamics and that the ARFIMA model consistently produces the best forecasts or forecasts not inferior to the best in statistical terms. Keywords Out-of-sample predictability Á Long memory time series Á Futures market regulation Á Realized volatility Á Econometric models JEL Classification C5 Á G12 Á G13
This paper investigates the time-series predictability of commodity futures excess returns from f... more This paper investigates the time-series predictability of commodity futures excess returns from factor models that exploit two risk factors-the equally weighted average excess return on long positions in a universe of futures contracts and the return difference between the high-and low-basis portfolios. Adopting a standard set of statistical evaluation metrics, we find weak evidence that the factor models provide out-of-sample forecasts of monthly excess returns significantly better than the benchmark of random walk with drift model. We also show, in a dynamic asset allocation environment, that the information contained in the commodity-based risk factors does not generate systematic economic value to risk-averse investors pursuing a commodity stand-alone strategy or a diversification strategy.
Japanese Journal of Forensic Science and Technology, 2013
The identiˆcation of body ‰uids at crime scenes provides critical evidence that can be used to pr... more The identiˆcation of body ‰uids at crime scenes provides critical evidence that can be used to prove the occurrence of a crime. In this study, the genome proˆling (GP) method was utilized to identify saliva and sweat. We randomly ampliˆed cDNA obtained through the RT PCR approach using RNA samples extracted from saliva and sweat with four diŠerent random primers, and performed temperature gradient gel electrophoresis between 15 65°C. The Sp 2 primer was the only primer which generated the species identiˆcation dots (spiddos) in all body ‰uids. The numbers of spiddos found were 11.6±0.89 in saliva and 3.0±1.73 in sweat, and the body ‰uid type speciˆc spiddos were obtained from electrophoresed gel. Along with previously reported data of semen and vaginal ‰uid, it was indicated that the GP method might distinguish those four kinds of body ‰uids. This novel assay is a simple and economical method. Therefore it may be an eŠective tool for the identiˆcation of body ‰uids at crime scenes. However, further detailed studies, including sensitivity, reproducibility, environmental eŠect and the eŠectiveness of detection from mixed stains are necessary before actual forensic investigations.
IEEE Transactions on Systems, Man, and Cybernetics, 1995
The necessary and sufficient conditions for repeatable pseudoinverse control are now well known. ... more The necessary and sufficient conditions for repeatable pseudoinverse control are now well known. A very simple example of a configuration for planar manipulators that is conservative is also known. It is also known there is no conservative configuration for the most common definition of joint angles. The question remains whether there exists any other conservative case using other definitions of joint angles, or equivalently, for pseudoinverse control using different, but constant, joint norms. This paper addresses this question using a combination of analytical and numerical methods. Such cases have been found, however, the resulting configurations are the same as previously known.
The present study was conducted to evaluate the effects of formulation pH and dose on nasal absor... more The present study was conducted to evaluate the effects of formulation pH and dose on nasal absorption of scopolamine hydrobromide, the single most effective drug available for the prevention of nausea and vomiting induced by motion sickness. Human subjects received scopolamine nasally at a dose of 0.2 mg/0.05 mL or 0.4 mg/0.10 mL, blood samples were collected at different time points, and plasma scopolamine concentrations were determined by LC-MS/MS. Following administration of a 0.2 mg dose, the average Cmax values were found to be 262+/-118, 419+/-161, and 488+/-331 pg/ mL for pH 4.0, 7.0, and 9.0 formulations, respectively. At the 0.4 mg dose the average Cmax values were found to be 503+/-199, 933+/-449, and 1,308+/-473 pg/mL for pH 4.0, 7.0, and 9.0 formulations, respectively. At a 0.2 mg dose, the AUC values were found to be 23,208+/-6,824, 29,145+/-9,225, and 25,721+/-5,294 pg x min/mL for formulation pH 4.0, 7.0, and 9.0, respectively. At a 0.4 mg dose, the average AUC value...
Engineering projects, in general, involve a large number of components and the interaction of mul... more Engineering projects, in general, involve a large number of components and the interaction of multiple technologies. The components included in the product are decided in an iterative design process. In each iteration, interfaces and interface conditions among these components are designed with slack to account for potential variations created when the components and interface values become better known. Iteration proceeds
International Conference on Electrical & Computer Engineering (ICECE 2010), 2010
... York, 2006. [14] Redwan N. Sajjad, K. Alam, and Q. Khosru, Parametrization of silicon nanowi... more ... York, 2006. [14] Redwan N. Sajjad, K. Alam, and Q. Khosru, Parametrization of silicon nanowire effective mass model from sp3d5s* orbital basis calculations, Semiconductor Science and Technology, vol. 24, No.4. 2009. 229
Bangabandhu Sheikh Mujib Medical University Journal, 2010
Histoplasmosis is the most common endemic mycosis in human. It has recently emerged as an importa... more Histoplasmosis is the most common endemic mycosis in human. It has recently emerged as an important opportunistic infection among human immunodeficiency virus (HIV)-infected persons living in areas where it is endemic 1. Histoplasma capsulatum is a dimorphic fungus that remains in a mycelial form at ambient temperatures and grows as yeast at body temperature and transmitted by inhalation of the spores. It enters the reticuloendothelial system and resides in macrophages. Most individuals with intact cellular immunity are asymptomatic. Severe disseminated histoplasmosis develops in people with primary or secondary deficiency of cellular immunity. Its presentation varies depending on the size of the inoculum, host's immune status, and presence of underlying lung disease. Approximately, 10% cases of histoplasmosis develop into progressive disseminated histoplasmosis (PDH). 2 Disseminated histoplasmosis can be fatal if untreated. In Bangladesh it is very uncommon. The successfully treated
Drug addiction and drug abuse, chronic or habitual use of any chemical substance to alter states ... more Drug addiction and drug abuse, chronic or habitual use of any chemical substance to alter states of body or mind for other than medically warranted purposes. Addiction is more often now defined by the continuing, compulsive nature of the drug use despite physical and/or psychological harm to the user and society and includes both licit and illicit drugs, and the term "substance abuse" is now frequently used because of the broad range of substances (including alcohol and inhalants) that can fit the addictive profile. Psychological dependence is the subjective feeling that the user needs the drug to maintain a feeling of well-being; physical dependence is characterized by tolerance (the need for increasingly larger doses in order to achieve the initial effect) and withdrawal symptoms when the user is abstinent. There are a lot of effects of drug addiction to the economy, society, and family. Drug addiction affects individual's physical and mental health. Drug addicts are...
ABSTRACT" In an ever more globalized world, communication and access to information is not a... more ABSTRACT" In an ever more globalized world, communication and access to information is not a luxury within firms, but a most important issue that used to improve collaboration within firms.” Globalizing organizations, outsourcing, mobile work, inter-organizational teams, ...
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Papers by Shamim Ahmed