AMINUL ISLAM - Academia.edu (original) (raw)
Papers by AMINUL ISLAM
Acta Chromatographica
Adsorption of alizarin red S on strong anion-exchange resin, Amber-lite IRA-400, and the use of t... more Adsorption of alizarin red S on strong anion-exchange resin, Amber-lite IRA-400, and the use of the product to separate a variety of metal ions, have been studied. Distribution coefficients of several important metal ions have been determined with different mobile phases to explore the separation potential of these materials. Fe3+ and Hg2+ have been selectively separated from other heavy metal ions by use of a column packed with Amberlite IRA-400 treated with alizarin red S.
Bangladesh Journal of Veterinary Medicine, 2013
This study was conducted at the Patuakhali Science and Technology University Veterinary Clinic, B... more This study was conducted at the Patuakhali Science and Technology University Veterinary Clinic, Babugonj, Barisal during the period from January 2008 to December 2011 to report the four years clinical diseases of ruminants. A total of 1241 clinical cases (793 cattle and 448 goats) were recorded and analyzed. Diagnosis of each of the clinical cases was made on clinical history, clinical signs, and faecal examination for parasitic cases. The clinical cases were primarily categorized into three major groups, namely, (1) Medicinal, (2) Gynaeco-obstetrical and (3) Surgical cases. Medicinal cases constituted highest percentage (cattle 84.1% and goats 81.0%) in comparison to gynaeco-obstetrical (cattle 4.7% and goats 1.1%) and surgical (cattle 11.2% and goats 17.9%) cases. Among the medicinal cases in cattle, highest percentage of cases was recorded with parasitic diseases (50.4%), followed by general systemic states (14.8%) and digestive disorders (14.2%). Other cases were respiratory dis...
Environmental science and pollution research international, Jan 6, 2015
In this study, mesoporous glycidyl methacrylate-divinylbenzene-based chelating resin was synthesi... more In this study, mesoporous glycidyl methacrylate-divinylbenzene-based chelating resin was synthesized and grafted with diethylenetriamine through epoxy ring-opening reaction. The synthesized resin was characterized by elemental analysis, infrared spectroscopy, surface area and pore size analysis, scanning electron microscopy, energy-dispersive spectroscopy, and thermogravimetry. The resin was used for the first time as an effective sorbent for the preconcentration of nickel in electroplating wastewater samples. The analytical variables like pH, flow rate for sorption/desorption, and eluate selection were systematically investigated and optimized. The uniform and monolayer sorption behavior of resin for nickel was proved by an evident fit of the equilibrium data to a Langmuir isotherm model. Under optimized conditions, the resin was observed to show a good sorption capacity of 20.25 mg g(-1) and >96 % recovery of nickel even in the presence of a large number of competitive matrix i...
AbstractThis paper presents 1-bit full adder cell in emerging technologies like FinFET and CNFET... more AbstractThis paper presents 1-bit full adder cell in emerging technologies like FinFET and CNFET that operates in the moderate inversion region for energy efficiency, robustness and higher performance. The performance of the adder is improved by the optimum selection ...
Microelectronics Reliability, 2012
This paper presents a technique for designing a variability aware SRAM cell. The architecture of ... more This paper presents a technique for designing a variability aware SRAM cell. The architecture of the proposed cell is similar to the standard 6T SRAM cell with the exception that the access pass gates are replaced with full transmission gates. The paper studies the impact of Vt (threshold voltage) variation on most of the design metrics of SRAM cell. The
2011 International Conference on Multimedia, Signal Processing and Communication Technologies, 2011
There is a rapid need to explore circuit designs in the newly emerging technologies to help exten... more There is a rapid need to explore circuit designs in the newly emerging technologies to help extend the saturating Moore's Law. This paper presents the optimized design and performance analysis of Dual-X Current Conveyor with the Hybrid CMOS and CNFET technologies at 32nm technology node. Current Bandwidth, Input and Output Port resistances of the device and the average power dissipated
Communications in Computer and Information Science, 2010
This paper proposes a high-speed multi-diameter CNFET-based 7T (seven transistor) SRAM (static ra... more This paper proposes a high-speed multi-diameter CNFET-based 7T (seven transistor) SRAM (static random access memory) cell. It investigates the impact of process, voltage and temperature (PVT) variations on its design metrics and compares the results with its counterpart – CMOS-based 7T SRAM cell. The proposed design offers 77.4× improvement in write access time along with 88.1× reduction in write access
The Scientific World Journal, 2014
Bush bean, long bean, mung bean, and winged bean plants were grown with N fertilizer at rates of ... more Bush bean, long bean, mung bean, and winged bean plants were grown with N fertilizer at rates of 0, 2, 4, and 6 g N m−2preceding rice planting. Concurrently, rice was grown with N fertilizer at rates of 0, 4, 8, and 12 g N m−2. No chemical fertilizer was used in the 2nd year of crop to estimate the nitrogen agronomic efficiency (NAE), nitrogen recovery efficiency (NRE), N uptake, and rice yield when legume crops were grown in rotation with rice. Rice after winged bean grown with N at the rate of 4 g N m−2achieved significantly higher NRE, NAE, and N uptake in both years. Rice after winged bean grown without N fertilizer produced 13–23% higher grain yield than rice after fallow rotation with 8 g N m−2. The results revealed that rice after winged bean without fertilizer and rice after long bean with N fertilizer at the rate of 4 g N m−2can produce rice yield equivalent to that of rice after fallow with N fertilizer at rates of 8 g N m−2. The NAE, NRE, and harvest index values for rice...
2010 Annual IEEE India Conference (INDICON), 2010
... REFERENCES [1] By Dejan Markovic, Cheng C. Wang, Louis P. Alarcon, Tsung-Te Liu, and Jan M. R... more ... REFERENCES [1] By Dejan Markovic, Cheng C. Wang, Louis P. Alarcon, Tsung-Te Liu, and Jan M. Rabaey, Ultralow-power design in ... Burnett, K. Erington, C. Subramanian, and K. Baker, Implications of fundamental threshold voltage variations for high-density SRAM and logic ...
2010 Annual IEEE India Conference (INDICON), 2010
... REFERENCES [1] By Dejan Markovic, Cheng C. Wang, Louis P. Alarcon, Tsung-Te Liu, and Jan M. R... more ... REFERENCES [1] By Dejan Markovic, Cheng C. Wang, Louis P. Alarcon, Tsung-Te Liu, and Jan M. Rabaey, Ultralow-power design in ... Burnett, K. Erington, C. Subramanian, and K. Baker, Implications of fundamental threshold voltage variations for high-density SRAM and logic ...
Climate Change Adaptation Actions in Bangladesh, 2013
Bangladesh, being one of the most climate change vulnerable countries of the world pioneered in t... more Bangladesh, being one of the most climate change vulnerable countries of the world pioneered in testing and adopting various adaptation technologies and approaches in different geographical settings of the country. Institutional response to climate change threats is reflected by the preparation and submission of Bangladesh NAPA to UNFCCC in 2005 earlier than many other least developed countries. Apart from various local adaptation initiatives undertaken by communities and NGOs, government agencies along with other actors are also implementing a number of adaptation projects in the area of agriculture, aquaculture and water and disaster management in different climate sensitive areas of the country through involvement of vulnerable communities. Being a least developed country with high population, major thrusts are given in food production and a number of technologies are in practice in the agriculture sector in different geographical locations have specific climate related stressors that necessitate specific adaptation technologies and options. Some adaptation initiatives to address disaster events and some piloting are done in disaster prone areas of the country have good lessons need to be documented for wider dissemination. Although various climate change adaptation project/activities are ongoing, stock taking of adaptation technologies in practice in geographical locations has not done yet for analysis of their effectiveness and further improvements. This chapter has two objectives. First, it briefly describes different adaptation technologies currently in practice in different climate sensitive disaster prone areas of the country by different actors with focus on agriculture, aquaculture, water and disaster risk reduction sub-sectors. Second, it briefly touches upon the potential for further innovations and extension of adaptation technologies reaching the millions of poor vulnerable communities live in the frontline of climate change impacts in Bangladesh and beyond.
2011 International Symposium on Electronic System Design, 2011
... Mohd. Ajmal Kafeel, Ale Imran, Mohd. Hasan Department of Electronics Engineering Aligarh Musl... more ... Mohd. Ajmal Kafeel, Ale Imran, Mohd. Hasan Department of Electronics Engineering Aligarh Muslim University Aligarh, Uttar Pradesh, India ajmal_kafeel@hotmail.com Abstract—The active power is one of the major contributors to the total power consumption in the SRAM cell. ...
Tobacco Induced Diseases, 2013
Background: Several studies in the past have reported inconclusive evidences on association of sm... more Background: Several studies in the past have reported inconclusive evidences on association of smoking and migraine. Nevertheless, no study so far reported association of smokeless tobacco with migraine. The objective of this study was to examine the association of smoked and smokeless tobacco use with migraine. Methods: A hospital-based case-control study was conducted at the neurology outpatient department of a tertiary care hospital in Dhaka, Bangladesh. We enrolled 138 migraine cases diagnosed during March-September 2010 in neurology outpatient department, and 276 gender and age matched healthy controls from among their attendants. Diagnosis of migraine was based on the International Headache Society criteria. Use of smokeless tobacco and smoking (cigarette/bidi/hukka) were determined by an interviewer administered questionnaire. Results: Among the cases, 52.9% were overall tobacco users; 24.6% were only smokers, 15.9% only smokeless tobacco users and 12.3% used both. The respective figures among controls were 14.5%, 7.2%, 6.9% and 0.4% (P <0.001 for all). The conditional logistic regression analysis found that migraine had higher odds of exposure to smoked tobacco use, smokeless tobacco use, and both compared to control after adjusting for confounding variables (alcohol drinking, insufficient sleep, mental stress, and number of family members); adjusted odds ratio (aOR) was 6.6 (95% confidence interval [CI] = 2.2-19.6, P = 0.001), 5.8 (95%CI = 1.9-17.4, P = 0.001), and 54.2 (95%CI = 4.3-684.4, P = 0.002), respectively. The aOR of cigarette/bidi/hukka smoking for different doses was 5.5 (95%CI = 1.2-24.8, P = 0.027) for 1-5 times per day, 6.3 (95%CI = 1.8-21.2, P = 0.003) for 6-10 times per day, and 6.7 (95%CI = 1.9-23.2, P = 0.003) for >10 times per day relative to non users. Conclusions: Both smoked and smokeless tobaccos were found to be associated with migraine. There is a need to incorporate smokeless tobacco along with smoked tobacco into the anti-tobacco awareness programs to reduce the burden of migraine in Bangladesh.
Tetrahedron Letters, 1993
... Press Ltd Synthesis of a New Bicyclic Guanidine Heterocycle as a Potential Anti HIV Agent AV ... more ... Press Ltd Synthesis of a New Bicyclic Guanidine Heterocycle as a Potential Anti HIV Agent AV Rama Rao , N1 K Gurjar and Aminul Islam Indian Institute of ... 5. Personal communication withDr A Patil for potential utility of marine polycyclic guani-dines in the treatment of AIDS. ...
Tetrahedron Letters, 2009
While a number of methods have been reported 6 for the synthesis of compounds containing the moie... more While a number of methods have been reported 6 for the synthesis of compounds containing the moiety A, all these strategies can be classified into two major categories, for example, construction of (i) six-membered saturated ring using an indole template B or (ii) five-membered ring ...
Synthetic Communications, 2007
Abstract The first total synthesis of Bauerine C, a unique indoloquinazoline alkoloid, has been a... more Abstract The first total synthesis of Bauerine C, a unique indoloquinazoline alkoloid, has been achieved from readily available 2,3‐dichloroaniline. The key step is the Japp–Klingmann condensation between 2,3‐dichloroaniline and ethyl‐2‐acetyl‐5‐phthalimido pentanoate to get 3‐[(2,3‐dichlorophenyl)‐hydrozono]‐pipiridin‐2‐one, which cyclizes to 7,8‐dichloro‐2,3,4,9‐tetrahydro‐β‐carbolin‐1‐one, which can be methylated by dimethyl sulphate to give 7,8‐dichloro‐9‐methyl 2,3,4,9‐tetrahydro‐β‐carbolin‐1‐one. This N‐methyl derivative is then subjected to dehydrogenation with 2,3‐dichloro‐5,6‐dicayano‐1,4‐benzoquinone (DDQ) to give the target compound Bauerine C.
PLoS ONE, 2013
Background: Individuals who rapidly develop hyperthermia during heat exposure (heat-intolerant) a... more Background: Individuals who rapidly develop hyperthermia during heat exposure (heat-intolerant) are vulnerable to heat associated illness and injury. We recently reported that heat intolerant mice exhibit complex alterations in stress proteins in response to heat exposure. In the present study, we further explored the role of genes and molecular networks associated with heat tolerance in mice. Methodology: Heat-induced physiological and biochemical changes were assessed to determine heat tolerance levels in mice. We performed RNA and microRNA expression profiling on mouse gastrocnemius muscle tissue samples to determine novel biological pathways associated with heat tolerance. Principal Findings: Mice (n = 18) were assigned to heat-tolerant (TOL) and heat-intolerant (INT) groups based on peak core temperatures during heat exposures. This was followed by biochemical assessments (Hsp40, Hsp72, Hsp90 and Hsf1 protein levels). Microarray analysis identified a total of 3,081 mRNA transcripts that were significantly misregulated in INT compared to TOL mice (p,0.05). Among them, Hspa1a, Dnajb1 and Hspb7 were differentially expressed by more than twofold under these conditions. Furthermore, we identified 61 distinct microRNA (miRNA) sequences significantly associated with TOL compared to INT mice; eight miRNAs corresponded to target sites in seven genes identified as being associated with heat tolerance pathways (Hspa1a, Dnajb1, Dnajb4, Dnajb6, Hspa2, Hspb3 and Hspb7). Conclusions: The combination of mRNA and miRNA data from the skeletal muscle of adult mice following heat stress provides new insights into the pathophysiology of thermoregulatory disturbances of heat intolerance.
Journal of Virological Methods, 2006
The further development of Taqman quantitative real-time PCR (qPCR) assays for the absolute quant... more The further development of Taqman quantitative real-time PCR (qPCR) assays for the absolute quantitation of Marek&amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;#39;s disease virus serotype 1 (MDV1) and Herpesvirus of turkeys (HVT) viruses is described and the sensitivity and reproducibility of each assay reported. Using plasmid DNA copies, the lower limit of detection was determined to be 5 copies for the MDV1 assay and 75 copies for the HVT assay. Both assays were found to be highly reproducible for Ct values and calculated copy numbers with mean intra- and inter-assay coefficients of variation being less than 5% for Ct and 20% for calculated copy number. The genome copy number of MDV1 and HVT viruses was quantified in PBL and feather tips from experimentally infected chickens, and field poultry dust samples. Parallelism was demonstrated between the plasmid-based standard curves, and standard curves derived from infected spleen material containing both viral and host DNA, allowing the latter to be used for absolute quantification. These methods should prove useful for the reliable differentiation and absolute quantitation of MDV1 and HVT viruses in a wide range of samples.
Journal of Virological Methods, 2006
Methods for Taqman quantitative real-time PCR (qPCR) assays to detect the three serotypes of Mare... more Methods for Taqman quantitative real-time PCR (qPCR) assays to detect the three serotypes of Marek's disease virus (MDV) are available, and absolute quantification has been developed for MDV serotype 1 and serotype 3. The development of a method for absolute quantification of Marek's disease virus serotype 2 (MDV2) is described in this paper. Using plasmid DNA, the lower detection limit of the MDV2 assay was determined to be 10 copies. Three independent assay runs showed highly reproducible Ct values and calculated copy numbers, with mean intraand inter-assay coefficients of variation of less than 3% for Ct and less than 21.5% for calculated copy number. Absolute quantification of MDV2 was performed successfully on dust samples collected from poultry farms across Australia, material from infectious spleens and feather tips from chickens vaccinated with an attenuated strain of MDV2. Thus, it is now possible to use qPCR assays for absolute quantification of all three serotypes of MDV in a sample.
![Research paper thumbnail of Addendum to “Absolute quantitation of Marek's disease virus and herpesvirus of turkeys in chicken lymphocyte, feather tip and dust samples using real-time PCR” [J. Virol. Meth. 132 (2006) 127–134]](https://attachments.academia-assets.com/86135088/thumbnails/1.jpg)
](Journal of Virological Methods, 2007
The authors would like to include the following addendum, it reads as follows: Since submission o... more The authors would like to include the following addendum, it reads as follows: Since submission of the manuscript we have ascertained that the Sorf1 primers amplify the gE gene as well as Sorf1. The implications of this are: (a) that the HVT assay detection limit
Acta Chromatographica
Adsorption of alizarin red S on strong anion-exchange resin, Amber-lite IRA-400, and the use of t... more Adsorption of alizarin red S on strong anion-exchange resin, Amber-lite IRA-400, and the use of the product to separate a variety of metal ions, have been studied. Distribution coefficients of several important metal ions have been determined with different mobile phases to explore the separation potential of these materials. Fe3+ and Hg2+ have been selectively separated from other heavy metal ions by use of a column packed with Amberlite IRA-400 treated with alizarin red S.
Bangladesh Journal of Veterinary Medicine, 2013
This study was conducted at the Patuakhali Science and Technology University Veterinary Clinic, B... more This study was conducted at the Patuakhali Science and Technology University Veterinary Clinic, Babugonj, Barisal during the period from January 2008 to December 2011 to report the four years clinical diseases of ruminants. A total of 1241 clinical cases (793 cattle and 448 goats) were recorded and analyzed. Diagnosis of each of the clinical cases was made on clinical history, clinical signs, and faecal examination for parasitic cases. The clinical cases were primarily categorized into three major groups, namely, (1) Medicinal, (2) Gynaeco-obstetrical and (3) Surgical cases. Medicinal cases constituted highest percentage (cattle 84.1% and goats 81.0%) in comparison to gynaeco-obstetrical (cattle 4.7% and goats 1.1%) and surgical (cattle 11.2% and goats 17.9%) cases. Among the medicinal cases in cattle, highest percentage of cases was recorded with parasitic diseases (50.4%), followed by general systemic states (14.8%) and digestive disorders (14.2%). Other cases were respiratory dis...
Environmental science and pollution research international, Jan 6, 2015
In this study, mesoporous glycidyl methacrylate-divinylbenzene-based chelating resin was synthesi... more In this study, mesoporous glycidyl methacrylate-divinylbenzene-based chelating resin was synthesized and grafted with diethylenetriamine through epoxy ring-opening reaction. The synthesized resin was characterized by elemental analysis, infrared spectroscopy, surface area and pore size analysis, scanning electron microscopy, energy-dispersive spectroscopy, and thermogravimetry. The resin was used for the first time as an effective sorbent for the preconcentration of nickel in electroplating wastewater samples. The analytical variables like pH, flow rate for sorption/desorption, and eluate selection were systematically investigated and optimized. The uniform and monolayer sorption behavior of resin for nickel was proved by an evident fit of the equilibrium data to a Langmuir isotherm model. Under optimized conditions, the resin was observed to show a good sorption capacity of 20.25 mg g(-1) and >96 % recovery of nickel even in the presence of a large number of competitive matrix i...
AbstractThis paper presents 1-bit full adder cell in emerging technologies like FinFET and CNFET... more AbstractThis paper presents 1-bit full adder cell in emerging technologies like FinFET and CNFET that operates in the moderate inversion region for energy efficiency, robustness and higher performance. The performance of the adder is improved by the optimum selection ...
Microelectronics Reliability, 2012
This paper presents a technique for designing a variability aware SRAM cell. The architecture of ... more This paper presents a technique for designing a variability aware SRAM cell. The architecture of the proposed cell is similar to the standard 6T SRAM cell with the exception that the access pass gates are replaced with full transmission gates. The paper studies the impact of Vt (threshold voltage) variation on most of the design metrics of SRAM cell. The
2011 International Conference on Multimedia, Signal Processing and Communication Technologies, 2011
There is a rapid need to explore circuit designs in the newly emerging technologies to help exten... more There is a rapid need to explore circuit designs in the newly emerging technologies to help extend the saturating Moore's Law. This paper presents the optimized design and performance analysis of Dual-X Current Conveyor with the Hybrid CMOS and CNFET technologies at 32nm technology node. Current Bandwidth, Input and Output Port resistances of the device and the average power dissipated
Communications in Computer and Information Science, 2010
This paper proposes a high-speed multi-diameter CNFET-based 7T (seven transistor) SRAM (static ra... more This paper proposes a high-speed multi-diameter CNFET-based 7T (seven transistor) SRAM (static random access memory) cell. It investigates the impact of process, voltage and temperature (PVT) variations on its design metrics and compares the results with its counterpart – CMOS-based 7T SRAM cell. The proposed design offers 77.4× improvement in write access time along with 88.1× reduction in write access
The Scientific World Journal, 2014
Bush bean, long bean, mung bean, and winged bean plants were grown with N fertilizer at rates of ... more Bush bean, long bean, mung bean, and winged bean plants were grown with N fertilizer at rates of 0, 2, 4, and 6 g N m−2preceding rice planting. Concurrently, rice was grown with N fertilizer at rates of 0, 4, 8, and 12 g N m−2. No chemical fertilizer was used in the 2nd year of crop to estimate the nitrogen agronomic efficiency (NAE), nitrogen recovery efficiency (NRE), N uptake, and rice yield when legume crops were grown in rotation with rice. Rice after winged bean grown with N at the rate of 4 g N m−2achieved significantly higher NRE, NAE, and N uptake in both years. Rice after winged bean grown without N fertilizer produced 13–23% higher grain yield than rice after fallow rotation with 8 g N m−2. The results revealed that rice after winged bean without fertilizer and rice after long bean with N fertilizer at the rate of 4 g N m−2can produce rice yield equivalent to that of rice after fallow with N fertilizer at rates of 8 g N m−2. The NAE, NRE, and harvest index values for rice...
2010 Annual IEEE India Conference (INDICON), 2010
... REFERENCES [1] By Dejan Markovic, Cheng C. Wang, Louis P. Alarcon, Tsung-Te Liu, and Jan M. R... more ... REFERENCES [1] By Dejan Markovic, Cheng C. Wang, Louis P. Alarcon, Tsung-Te Liu, and Jan M. Rabaey, Ultralow-power design in ... Burnett, K. Erington, C. Subramanian, and K. Baker, Implications of fundamental threshold voltage variations for high-density SRAM and logic ...
2010 Annual IEEE India Conference (INDICON), 2010
... REFERENCES [1] By Dejan Markovic, Cheng C. Wang, Louis P. Alarcon, Tsung-Te Liu, and Jan M. R... more ... REFERENCES [1] By Dejan Markovic, Cheng C. Wang, Louis P. Alarcon, Tsung-Te Liu, and Jan M. Rabaey, Ultralow-power design in ... Burnett, K. Erington, C. Subramanian, and K. Baker, Implications of fundamental threshold voltage variations for high-density SRAM and logic ...
Climate Change Adaptation Actions in Bangladesh, 2013
Bangladesh, being one of the most climate change vulnerable countries of the world pioneered in t... more Bangladesh, being one of the most climate change vulnerable countries of the world pioneered in testing and adopting various adaptation technologies and approaches in different geographical settings of the country. Institutional response to climate change threats is reflected by the preparation and submission of Bangladesh NAPA to UNFCCC in 2005 earlier than many other least developed countries. Apart from various local adaptation initiatives undertaken by communities and NGOs, government agencies along with other actors are also implementing a number of adaptation projects in the area of agriculture, aquaculture and water and disaster management in different climate sensitive areas of the country through involvement of vulnerable communities. Being a least developed country with high population, major thrusts are given in food production and a number of technologies are in practice in the agriculture sector in different geographical locations have specific climate related stressors that necessitate specific adaptation technologies and options. Some adaptation initiatives to address disaster events and some piloting are done in disaster prone areas of the country have good lessons need to be documented for wider dissemination. Although various climate change adaptation project/activities are ongoing, stock taking of adaptation technologies in practice in geographical locations has not done yet for analysis of their effectiveness and further improvements. This chapter has two objectives. First, it briefly describes different adaptation technologies currently in practice in different climate sensitive disaster prone areas of the country by different actors with focus on agriculture, aquaculture, water and disaster risk reduction sub-sectors. Second, it briefly touches upon the potential for further innovations and extension of adaptation technologies reaching the millions of poor vulnerable communities live in the frontline of climate change impacts in Bangladesh and beyond.
2011 International Symposium on Electronic System Design, 2011
... Mohd. Ajmal Kafeel, Ale Imran, Mohd. Hasan Department of Electronics Engineering Aligarh Musl... more ... Mohd. Ajmal Kafeel, Ale Imran, Mohd. Hasan Department of Electronics Engineering Aligarh Muslim University Aligarh, Uttar Pradesh, India ajmal_kafeel@hotmail.com Abstract—The active power is one of the major contributors to the total power consumption in the SRAM cell. ...
Tobacco Induced Diseases, 2013
Background: Several studies in the past have reported inconclusive evidences on association of sm... more Background: Several studies in the past have reported inconclusive evidences on association of smoking and migraine. Nevertheless, no study so far reported association of smokeless tobacco with migraine. The objective of this study was to examine the association of smoked and smokeless tobacco use with migraine. Methods: A hospital-based case-control study was conducted at the neurology outpatient department of a tertiary care hospital in Dhaka, Bangladesh. We enrolled 138 migraine cases diagnosed during March-September 2010 in neurology outpatient department, and 276 gender and age matched healthy controls from among their attendants. Diagnosis of migraine was based on the International Headache Society criteria. Use of smokeless tobacco and smoking (cigarette/bidi/hukka) were determined by an interviewer administered questionnaire. Results: Among the cases, 52.9% were overall tobacco users; 24.6% were only smokers, 15.9% only smokeless tobacco users and 12.3% used both. The respective figures among controls were 14.5%, 7.2%, 6.9% and 0.4% (P <0.001 for all). The conditional logistic regression analysis found that migraine had higher odds of exposure to smoked tobacco use, smokeless tobacco use, and both compared to control after adjusting for confounding variables (alcohol drinking, insufficient sleep, mental stress, and number of family members); adjusted odds ratio (aOR) was 6.6 (95% confidence interval [CI] = 2.2-19.6, P = 0.001), 5.8 (95%CI = 1.9-17.4, P = 0.001), and 54.2 (95%CI = 4.3-684.4, P = 0.002), respectively. The aOR of cigarette/bidi/hukka smoking for different doses was 5.5 (95%CI = 1.2-24.8, P = 0.027) for 1-5 times per day, 6.3 (95%CI = 1.8-21.2, P = 0.003) for 6-10 times per day, and 6.7 (95%CI = 1.9-23.2, P = 0.003) for >10 times per day relative to non users. Conclusions: Both smoked and smokeless tobaccos were found to be associated with migraine. There is a need to incorporate smokeless tobacco along with smoked tobacco into the anti-tobacco awareness programs to reduce the burden of migraine in Bangladesh.
Tetrahedron Letters, 1993
... Press Ltd Synthesis of a New Bicyclic Guanidine Heterocycle as a Potential Anti HIV Agent AV ... more ... Press Ltd Synthesis of a New Bicyclic Guanidine Heterocycle as a Potential Anti HIV Agent AV Rama Rao , N1 K Gurjar and Aminul Islam Indian Institute of ... 5. Personal communication withDr A Patil for potential utility of marine polycyclic guani-dines in the treatment of AIDS. ...
Tetrahedron Letters, 2009
While a number of methods have been reported 6 for the synthesis of compounds containing the moie... more While a number of methods have been reported 6 for the synthesis of compounds containing the moiety A, all these strategies can be classified into two major categories, for example, construction of (i) six-membered saturated ring using an indole template B or (ii) five-membered ring ...
Synthetic Communications, 2007
Abstract The first total synthesis of Bauerine C, a unique indoloquinazoline alkoloid, has been a... more Abstract The first total synthesis of Bauerine C, a unique indoloquinazoline alkoloid, has been achieved from readily available 2,3‐dichloroaniline. The key step is the Japp–Klingmann condensation between 2,3‐dichloroaniline and ethyl‐2‐acetyl‐5‐phthalimido pentanoate to get 3‐[(2,3‐dichlorophenyl)‐hydrozono]‐pipiridin‐2‐one, which cyclizes to 7,8‐dichloro‐2,3,4,9‐tetrahydro‐β‐carbolin‐1‐one, which can be methylated by dimethyl sulphate to give 7,8‐dichloro‐9‐methyl 2,3,4,9‐tetrahydro‐β‐carbolin‐1‐one. This N‐methyl derivative is then subjected to dehydrogenation with 2,3‐dichloro‐5,6‐dicayano‐1,4‐benzoquinone (DDQ) to give the target compound Bauerine C.
PLoS ONE, 2013
Background: Individuals who rapidly develop hyperthermia during heat exposure (heat-intolerant) a... more Background: Individuals who rapidly develop hyperthermia during heat exposure (heat-intolerant) are vulnerable to heat associated illness and injury. We recently reported that heat intolerant mice exhibit complex alterations in stress proteins in response to heat exposure. In the present study, we further explored the role of genes and molecular networks associated with heat tolerance in mice. Methodology: Heat-induced physiological and biochemical changes were assessed to determine heat tolerance levels in mice. We performed RNA and microRNA expression profiling on mouse gastrocnemius muscle tissue samples to determine novel biological pathways associated with heat tolerance. Principal Findings: Mice (n = 18) were assigned to heat-tolerant (TOL) and heat-intolerant (INT) groups based on peak core temperatures during heat exposures. This was followed by biochemical assessments (Hsp40, Hsp72, Hsp90 and Hsf1 protein levels). Microarray analysis identified a total of 3,081 mRNA transcripts that were significantly misregulated in INT compared to TOL mice (p,0.05). Among them, Hspa1a, Dnajb1 and Hspb7 were differentially expressed by more than twofold under these conditions. Furthermore, we identified 61 distinct microRNA (miRNA) sequences significantly associated with TOL compared to INT mice; eight miRNAs corresponded to target sites in seven genes identified as being associated with heat tolerance pathways (Hspa1a, Dnajb1, Dnajb4, Dnajb6, Hspa2, Hspb3 and Hspb7). Conclusions: The combination of mRNA and miRNA data from the skeletal muscle of adult mice following heat stress provides new insights into the pathophysiology of thermoregulatory disturbances of heat intolerance.
Journal of Virological Methods, 2006
The further development of Taqman quantitative real-time PCR (qPCR) assays for the absolute quant... more The further development of Taqman quantitative real-time PCR (qPCR) assays for the absolute quantitation of Marek&amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;#39;s disease virus serotype 1 (MDV1) and Herpesvirus of turkeys (HVT) viruses is described and the sensitivity and reproducibility of each assay reported. Using plasmid DNA copies, the lower limit of detection was determined to be 5 copies for the MDV1 assay and 75 copies for the HVT assay. Both assays were found to be highly reproducible for Ct values and calculated copy numbers with mean intra- and inter-assay coefficients of variation being less than 5% for Ct and 20% for calculated copy number. The genome copy number of MDV1 and HVT viruses was quantified in PBL and feather tips from experimentally infected chickens, and field poultry dust samples. Parallelism was demonstrated between the plasmid-based standard curves, and standard curves derived from infected spleen material containing both viral and host DNA, allowing the latter to be used for absolute quantification. These methods should prove useful for the reliable differentiation and absolute quantitation of MDV1 and HVT viruses in a wide range of samples.
Journal of Virological Methods, 2006
Methods for Taqman quantitative real-time PCR (qPCR) assays to detect the three serotypes of Mare... more Methods for Taqman quantitative real-time PCR (qPCR) assays to detect the three serotypes of Marek's disease virus (MDV) are available, and absolute quantification has been developed for MDV serotype 1 and serotype 3. The development of a method for absolute quantification of Marek's disease virus serotype 2 (MDV2) is described in this paper. Using plasmid DNA, the lower detection limit of the MDV2 assay was determined to be 10 copies. Three independent assay runs showed highly reproducible Ct values and calculated copy numbers, with mean intraand inter-assay coefficients of variation of less than 3% for Ct and less than 21.5% for calculated copy number. Absolute quantification of MDV2 was performed successfully on dust samples collected from poultry farms across Australia, material from infectious spleens and feather tips from chickens vaccinated with an attenuated strain of MDV2. Thus, it is now possible to use qPCR assays for absolute quantification of all three serotypes of MDV in a sample.
Journal of Virological Methods, 2007
The authors would like to include the following addendum, it reads as follows: Since submission o... more The authors would like to include the following addendum, it reads as follows: Since submission of the manuscript we have ascertained that the Sorf1 primers amplify the gE gene as well as Sorf1. The implications of this are: (a) that the HVT assay detection limit