Maheen Riyaz - Academia.edu (original) (raw)
Papers by Maheen Riyaz
Materials Today: Proceedings, 2020
Aluminum composites have progressively broadened its usage due to its merits of processing, high ... more Aluminum composites have progressively broadened its usage due to its merits of processing, high specific strength and modulus of elasticity while carrying good deformability and conductivity comparable to metals. Furthermore its usage in structural components for high performance application, such as aerospace vehicles and racing automobiles, hence this composite requires a good processing method so that the quality of the Al7075/SiC/Graphene composite is not affected. Hence stir casting method of casting is adopted and Al 7075 plate is casted with varying mass of SiC (10% and 15%) and Graphene maintained constant at 1% for both compositions. The distribution of Aluminium composite is examined by microstructure analysis, and the material is tested for its mechanical Properties such as Tensile strength, Hardness, Impact strength along with that the wear behaviour is also analysed using pin-on-disk testing method. Liquid state processing technique - stir casting method is employed in...
RGUHS Journal of Pharmaceutical Sciences, 2013
The better management of asthma depends upon patient understanding regarding lifestyle modificati... more The better management of asthma depends upon patient understanding regarding lifestyle modification and treatment, the treatment of which may cause side effects that impair quality of life (QOL) and hence leads to problems in patient’s daily life. Hence the present study was carried out to assess the impact of pharmacist mediated counselling on QOL in asthma patients using WHO-BREF questionnaire. A total of 180 asthma patients were enrolled into the study, out of which 160 have completed the study. Remaining 20 patients did not turn up for the follow up. Out of 160 patients 90 were males and 70 were females. 81 patients were in intervention and 79 in the control group. The intervention group showed improvement in QOL score from the baseline to 1 st and 2 nd follow-ups. No improvement in the total score of the control group was observed. The intervention group showed improvement in pulmonary function on 1 st and 2 nd follow-ups; the control group did not show improvement in PFT value...
In Maldives, 39 islands are significantly damaged among 200 inhabited islands and nearly a third ... more In Maldives, 39 islands are significantly damaged among 200 inhabited islands and nearly a third of the Maldivian people are severely affected by the Indian Ocean Tsunami in 26 December 2004. We surveyed tsunami impact in 43 islands by measuring island topography and run-up height, interview to local people and mapping of the flooded and destructed areas. The differences in tsunami height and disaster corresponding to the atoll shape and island topography are observed. In the northern atolls, atoll rims consist of many ring-shaped reefs, i.e. miniature atolls called `faro', and interrupted many channels between them. The interrupted atoll rim may play an important role to reducing tsunami run-up height. Severe damage was not observed in the eastern coast of the islands. Beach ridge also contribute to the protection against tsunami. However, in some islands, houses beside the lagoon are damaged by backwashing floodwater from the lagoon. Water marks show the run-up height of -1.8m above MSL. The lagoon water-level seems to set-up by tsunami which permeates into the lagoon through the interrupted atoll rim. The disaster was severe at the southern atolls of Meemu, Thaa and Laamu. The higher run-up heights of up to 3.2m above MSL and enormous building damages were observed at the islands on the eastern atoll rims. The continuous atoll rim of these atolls may reinforce tsunami impact at the eastern islands. In addition, tsunami surge washed the islands totally because of low island topography without beach ridge. Significant floodwater from lagoon was not observed in these atolls. It seems the lagoon water-level was not set-up largely. The continuous atoll rim reduces the tsunami influence to the lagoon and the western side of the atolls. The continuity of atoll rim is probably the major factor to cause the difference in water movement, i.e. tsunami run-up and lagoon set-up, which affects the disaster in the islands. Beach ridge contribute to reduce the tsunami impact to the settlement and agricultural land. Our results may elucidate secure atoll and island type to mitigate the risk of future tsunamis on atoll nations/districts in the Pacific and the Indian Ocean.
A B S T R A C T Introduction: Prescription is an order for medication issued by a properly licens... more A B S T R A C T Introduction: Prescription is an order for medication issued by a properly licensed medical practitioner to the pharmacist. The prescription should be clearly written, free from writing errors, and fulfil the legal requirements. The prescription writing errors leads to the medication errors, which in turn leads to failure of therapeutic goals. Objective: A nine month prospective study was carried out to determine the prescription writing errors at a Teaching Hospital. Results: A total of 290 prescriptions were randomly collected from out patients visiting the study site, and analyzed. Among them 635 errors of omission related to prescribers and 184 errors of omission related to the drugs with an average of 2.18 and 0.63 errors per prescription respectively. The errors of omission related to prescribers were due to failure to mention signature of prescriber 27(9.31%) followed by diagnosis 27(9.31%), prescribers name 261(90%), patients weight 290(100%) and 30(10.34%) w...
A reliable routing protocol for wireless sensor networks (WSN) should be capable of adjusting to ... more A reliable routing protocol for wireless sensor networks (WSN) should be capable of adjusting to constantly varying network conditions while conserving maximum power. Existing Routing protocols provide reliability at the cost of high energy consumption. In this paper, we propose to develop an Adaptive Energy Efficient Reliable Routing Protocol (AEERRP) with the aim of keeping the energy consumption low while achieving high reliability. In our proposed protocol, the data forwarding probability is adaptively adjusted based on the measured loss conditions at the sink. So only for high loss rates, a node makes use of high transmission power to arrive at the sink. Whenever the loss rate is low, it adaptively lessens the transmission power. Since the source rebroadcasts the data, until the packet loss is minimized, high data reliability is achieved. By simulation results we show that the proposed protocol achieves high reliability while ensuring low energy consumption and overhead.
Bearings are used to allow the relative motion between the two surfaces. A piston is to slide abo... more Bearings are used to allow the relative motion between the two surfaces. A piston is to slide about the cylinder and shaft has to rotate about its casing. Both requires the relative motion for least frictional losses to be happened. A flexure bearing is a spring which allows relative motion by bending a load element. Flexure bearings have the advantage over most other bearings that they are simple and thus inexpensive. They are also often compact, lightweight, have very low friction, and are easier to repair without specialized equipment. This paper presents design, analysis and manufacturing of flexure bearing for a linear compressor which increases the efficiency of system by achieving maximum stiffness, less stresses and more fatigue life. For this, modelling is done in NX&CATIA and analysis in ANSYS with physical validation of final results by manufacturing actual prototype.
In Maldives, 39 islands are significantly damaged among 200 inhabited islands and nearly a third ... more In Maldives, 39 islands are significantly damaged among 200 inhabited islands and nearly a third of the Maldivian people are severely affected by the Indian Ocean Tsunami in 26 December 2004. We surveyed tsunami impact in 43 islands by measuring island topography and run-up height, interview to local people and mapping of the flooded and destructed areas. The differences in
Journal of thrombosis and thrombolysis, 2009
In the present study we evaluated the presence of cysteine protease from the latex of four plants... more In the present study we evaluated the presence of cysteine protease from the latex of four plants Asclepias curassavica L., Calotropis gigantea R.Br., Pergularia extensa R.Br. and Cynanchum puciflorum R.Br. belongs to the family Asclepiadaceae. Cysteine proteases from these plants latex exhibited both thrombin and plasmin like activities. Latex enzyme fraction in a concentration dependent manner induced the formation of clot in citrated blood plasma. Direct incubation of fibrinogen with latex enzyme fraction resulted in the formation of fibrin clot similar to thrombin enzyme. However prolonged incubation resulted in degradation of the formed fibrin clot suggesting plasmin like activity. Latex enzyme fraction preferentially hydrolyzed Aalpha and Bbeta chains of fibrinogen to form fibrin clot. Latex enzyme fraction also hydrolyzed the subunits of fully cross linked fibrin efficiently, the order of hydrolysis was alpha-polymer > alpha-chains > beta-chain and gamma-gamma dimer. Cy...
Atoll Research Bulletin, 2007
International journal of scientific research, 2021
Background:Induction of labour is the process of initiating the labour by articial means post 24... more Background:Induction of labour is the process of initiating the labour by articial means post 24 weeks of gestation. This study was undertaken to compare the efcacy and safety of vaginal Misoprostol [25-50ug] with intracervical Dinoprostone gel (0.5mg) for induction of labour at term in terms of efcacy of drug, feto-maternal outcome, side effects and complications of drugs. Methods: 400 nulliparas at term admitted in the OBG ward were included in this study. They were randomly allocated to two groups A& B. Group A (200 women) received tablet Misoprostol 25 micrograms vaginally 4 hrly to a maximum of 3 doses and Group B (200 women) received Dinoprostone gel 0.5mg intracervically 6 hrly to a maximum of 3 doses. Comparison was done in terms of induction to delivery interval, rates of instrumental and LSCS delivery, need for NICU care and cost-effectiveness. ADRs, if any were documented and proper care taken. Results: The mean induction to delivery interval was less in the Misoprosto...
Materials Today: Proceedings, 2020
Aluminum composites have progressively broadened its usage due to its merits of processing, high ... more Aluminum composites have progressively broadened its usage due to its merits of processing, high specific strength and modulus of elasticity while carrying good deformability and conductivity comparable to metals. Furthermore its usage in structural components for high performance application, such as aerospace vehicles and racing automobiles, hence this composite requires a good processing method so that the quality of the Al7075/SiC/Graphene composite is not affected. Hence stir casting method of casting is adopted and Al 7075 plate is casted with varying mass of SiC (10% and 15%) and Graphene maintained constant at 1% for both compositions. The distribution of Aluminium composite is examined by microstructure analysis, and the material is tested for its mechanical Properties such as Tensile strength, Hardness, Impact strength along with that the wear behaviour is also analysed using pin-on-disk testing method. Liquid state processing technique - stir casting method is employed in...
RGUHS Journal of Pharmaceutical Sciences, 2013
The better management of asthma depends upon patient understanding regarding lifestyle modificati... more The better management of asthma depends upon patient understanding regarding lifestyle modification and treatment, the treatment of which may cause side effects that impair quality of life (QOL) and hence leads to problems in patient’s daily life. Hence the present study was carried out to assess the impact of pharmacist mediated counselling on QOL in asthma patients using WHO-BREF questionnaire. A total of 180 asthma patients were enrolled into the study, out of which 160 have completed the study. Remaining 20 patients did not turn up for the follow up. Out of 160 patients 90 were males and 70 were females. 81 patients were in intervention and 79 in the control group. The intervention group showed improvement in QOL score from the baseline to 1 st and 2 nd follow-ups. No improvement in the total score of the control group was observed. The intervention group showed improvement in pulmonary function on 1 st and 2 nd follow-ups; the control group did not show improvement in PFT value...
In Maldives, 39 islands are significantly damaged among 200 inhabited islands and nearly a third ... more In Maldives, 39 islands are significantly damaged among 200 inhabited islands and nearly a third of the Maldivian people are severely affected by the Indian Ocean Tsunami in 26 December 2004. We surveyed tsunami impact in 43 islands by measuring island topography and run-up height, interview to local people and mapping of the flooded and destructed areas. The differences in tsunami height and disaster corresponding to the atoll shape and island topography are observed. In the northern atolls, atoll rims consist of many ring-shaped reefs, i.e. miniature atolls called `faro', and interrupted many channels between them. The interrupted atoll rim may play an important role to reducing tsunami run-up height. Severe damage was not observed in the eastern coast of the islands. Beach ridge also contribute to the protection against tsunami. However, in some islands, houses beside the lagoon are damaged by backwashing floodwater from the lagoon. Water marks show the run-up height of -1.8m above MSL. The lagoon water-level seems to set-up by tsunami which permeates into the lagoon through the interrupted atoll rim. The disaster was severe at the southern atolls of Meemu, Thaa and Laamu. The higher run-up heights of up to 3.2m above MSL and enormous building damages were observed at the islands on the eastern atoll rims. The continuous atoll rim of these atolls may reinforce tsunami impact at the eastern islands. In addition, tsunami surge washed the islands totally because of low island topography without beach ridge. Significant floodwater from lagoon was not observed in these atolls. It seems the lagoon water-level was not set-up largely. The continuous atoll rim reduces the tsunami influence to the lagoon and the western side of the atolls. The continuity of atoll rim is probably the major factor to cause the difference in water movement, i.e. tsunami run-up and lagoon set-up, which affects the disaster in the islands. Beach ridge contribute to reduce the tsunami impact to the settlement and agricultural land. Our results may elucidate secure atoll and island type to mitigate the risk of future tsunamis on atoll nations/districts in the Pacific and the Indian Ocean.
A B S T R A C T Introduction: Prescription is an order for medication issued by a properly licens... more A B S T R A C T Introduction: Prescription is an order for medication issued by a properly licensed medical practitioner to the pharmacist. The prescription should be clearly written, free from writing errors, and fulfil the legal requirements. The prescription writing errors leads to the medication errors, which in turn leads to failure of therapeutic goals. Objective: A nine month prospective study was carried out to determine the prescription writing errors at a Teaching Hospital. Results: A total of 290 prescriptions were randomly collected from out patients visiting the study site, and analyzed. Among them 635 errors of omission related to prescribers and 184 errors of omission related to the drugs with an average of 2.18 and 0.63 errors per prescription respectively. The errors of omission related to prescribers were due to failure to mention signature of prescriber 27(9.31%) followed by diagnosis 27(9.31%), prescribers name 261(90%), patients weight 290(100%) and 30(10.34%) w...
A reliable routing protocol for wireless sensor networks (WSN) should be capable of adjusting to ... more A reliable routing protocol for wireless sensor networks (WSN) should be capable of adjusting to constantly varying network conditions while conserving maximum power. Existing Routing protocols provide reliability at the cost of high energy consumption. In this paper, we propose to develop an Adaptive Energy Efficient Reliable Routing Protocol (AEERRP) with the aim of keeping the energy consumption low while achieving high reliability. In our proposed protocol, the data forwarding probability is adaptively adjusted based on the measured loss conditions at the sink. So only for high loss rates, a node makes use of high transmission power to arrive at the sink. Whenever the loss rate is low, it adaptively lessens the transmission power. Since the source rebroadcasts the data, until the packet loss is minimized, high data reliability is achieved. By simulation results we show that the proposed protocol achieves high reliability while ensuring low energy consumption and overhead.
Bearings are used to allow the relative motion between the two surfaces. A piston is to slide abo... more Bearings are used to allow the relative motion between the two surfaces. A piston is to slide about the cylinder and shaft has to rotate about its casing. Both requires the relative motion for least frictional losses to be happened. A flexure bearing is a spring which allows relative motion by bending a load element. Flexure bearings have the advantage over most other bearings that they are simple and thus inexpensive. They are also often compact, lightweight, have very low friction, and are easier to repair without specialized equipment. This paper presents design, analysis and manufacturing of flexure bearing for a linear compressor which increases the efficiency of system by achieving maximum stiffness, less stresses and more fatigue life. For this, modelling is done in NX&CATIA and analysis in ANSYS with physical validation of final results by manufacturing actual prototype.
In Maldives, 39 islands are significantly damaged among 200 inhabited islands and nearly a third ... more In Maldives, 39 islands are significantly damaged among 200 inhabited islands and nearly a third of the Maldivian people are severely affected by the Indian Ocean Tsunami in 26 December 2004. We surveyed tsunami impact in 43 islands by measuring island topography and run-up height, interview to local people and mapping of the flooded and destructed areas. The differences in
Journal of thrombosis and thrombolysis, 2009
In the present study we evaluated the presence of cysteine protease from the latex of four plants... more In the present study we evaluated the presence of cysteine protease from the latex of four plants Asclepias curassavica L., Calotropis gigantea R.Br., Pergularia extensa R.Br. and Cynanchum puciflorum R.Br. belongs to the family Asclepiadaceae. Cysteine proteases from these plants latex exhibited both thrombin and plasmin like activities. Latex enzyme fraction in a concentration dependent manner induced the formation of clot in citrated blood plasma. Direct incubation of fibrinogen with latex enzyme fraction resulted in the formation of fibrin clot similar to thrombin enzyme. However prolonged incubation resulted in degradation of the formed fibrin clot suggesting plasmin like activity. Latex enzyme fraction preferentially hydrolyzed Aalpha and Bbeta chains of fibrinogen to form fibrin clot. Latex enzyme fraction also hydrolyzed the subunits of fully cross linked fibrin efficiently, the order of hydrolysis was alpha-polymer > alpha-chains > beta-chain and gamma-gamma dimer. Cy...
Atoll Research Bulletin, 2007
International journal of scientific research, 2021
Background:Induction of labour is the process of initiating the labour by articial means post 24... more Background:Induction of labour is the process of initiating the labour by articial means post 24 weeks of gestation. This study was undertaken to compare the efcacy and safety of vaginal Misoprostol [25-50ug] with intracervical Dinoprostone gel (0.5mg) for induction of labour at term in terms of efcacy of drug, feto-maternal outcome, side effects and complications of drugs. Methods: 400 nulliparas at term admitted in the OBG ward were included in this study. They were randomly allocated to two groups A& B. Group A (200 women) received tablet Misoprostol 25 micrograms vaginally 4 hrly to a maximum of 3 doses and Group B (200 women) received Dinoprostone gel 0.5mg intracervically 6 hrly to a maximum of 3 doses. Comparison was done in terms of induction to delivery interval, rates of instrumental and LSCS delivery, need for NICU care and cost-effectiveness. ADRs, if any were documented and proper care taken. Results: The mean induction to delivery interval was less in the Misoprosto...