Syed Raza - Profile on Academia.edu (original) (raw)

Papers by Syed Raza

Journal of Quality in Maintenance Engineering, 2007

Purpose -The purpose of this paper is to compare the effectiveness of two meta-heuristics in solv... more Purpose -The purpose of this paper is to compare the effectiveness of two meta-heuristics in solving the problem of scheduling maintenance operations and jobs processing on a single machine. Design/methodology/approach -The two meta-heuristic algorithms, tabu search and simulated annealing are hybridized using the properties of an optimal schedule identified in the existing literature to the problem. A lower bound is also suggested utilizing these properties. Finding -In a numerical experimentation with large size problems, the best-known heuristic algorithm to the problem is compared with the tabu search and simulated annealing algorithms. The study shows that the meta-heuristic algorithms outperform the heuristic algorithm. In addition, the developed meta-heuristics tend to be more robust against the problem-related parameters than the existing algorithm. Research limitations/implications -A future work may consider the possibility of machine failure along with the preventive maintenance. This relaxes the assumption that the machine cannot fail but it is rather maintained preventively. The multi-criteria scheduling can also be considered as an avenue of future work. The problem can also be considered with stochastic parameters such that the processing times of the jobs and the maintenance related parameters are random and follow a known probability distribution function. Practical implications -The usefulness of meta-heuristic algorithms is demonstrated for solving a large scale NP-hard combinatorial optimization problem. The paper also shows that the utilization of the directed search methods such as hybridization could substantially improve the performance of a meta-heuristic. Originality/value -This research highlights the impact of utilizing the directed search methods to cause hybridization in meta-heuristic and the resulting improvement in their performance for large-scale optimization.

International Journal of Applied Decision Sciences, 2010

Diphtheria in an adult: how well prepared are we in tackling the disease? A case report

Indian journal of otolaryngology and head and neck surgery : official publication of the Association of Otolaryngologists of India, 2011

Diphtheria is a forgotten communicable disease and presumed to be under sufficient control so muc... more Diphtheria is a forgotten communicable disease and presumed to be under sufficient control so much so that life savings drugs required for its treatment has disappeared from most hospitals. Contrary to this belief, classical diphtheria continues to exist in many parts of India despite extensive immunizations campaigns raising the suspicion of resurgence. The absence of essential drugs in treatment of this condition has further worsened the situation. The expenditure involved in procuring these drugs is yet another constraint. We here by present one such case of adult diphtheria and discuss the problems associated with its diagnosis and treatment.

An epidemiological study of urban and rural children in Pakistan: examining the relationship between delayed psychomotor development, low birth weight and postnatal growth failure

Transactions of the Royal Society of Tropical Medicine and Hygiene, 2015

Low birth weight is known to be associated with postnatal growth failure. It is not yet establish... more Low birth weight is known to be associated with postnatal growth failure. It is not yet established that both conditions are determinants of psychomotor development. The study investigated whether or not low birth weight leads to delayed psychomotor development of a child, and whether it can be mitigated by adequate postnatal growth. A cross-sectional study was conducted in 2002 in 15 rural and 11 urban communities of Sindh province, Pakistan. Assessment of 1234 children less than 3 years of age included Bayley's Scale of Infant Development II, socioeconomic questionnaire and anthropometry; WHO standards were used to calculate z-scores of height-for-age, weight-for-height and weight-for-age. The underlying study hypotheses were tested through multiple regression modelling. Out of 1219 children, 283 (23.2%) had delayed psychomotor development and 639 (52.4%) were undernourished according to the composite index of anthropometric failure. Strong negative associations with the psychomotor development index were detected between stunting and being underweight, with a larger magnitude of effect for stunting (p<0.001). The strong relationship persisted even when the analysis was restricted to non-malnourished children. The psychomotor index increased by 2.07 points with every unit increase in height-for-age z-score. The relationship between low birth weight and psychomotor development appears to be mediated largely by postnatal growth and nutritional status. This association suggests that among undernourished children there is significant likelihood of a group that is developmentally delayed. It is important to emphasize developmental needs in programmes that target underprivileged children.

Indian journal of endocrinology and metabolism, 2012

In the month of Ramadan, patients with thyroid diseases, most of the time, do not need treatment ... more In the month of Ramadan, patients with thyroid diseases, most of the time, do not need treatment adjustments and can fast safely without any health hazards. Patients with hypothyroidism taking thyroxine can take their tablets on an empty stomach at bedtime instead of half an hour before Sehr. Patients with hyperthyroidism, on methimazole/carbimazole can continue their dose in once or twice daily regimes, while those on propylthiouracil need to be switched. Hyperthyroid patients with severe symptoms should start treatment immediately and can avoid fast for few days after a consultation with their religious scholar.

Subclinical hypothyroidism: Controversies to consensus

Indian journal of endocrinology and metabolism, 2013

Diagnoses of subclinicaal hypothyroidism (SCH) is biochemically made, when serum thyroid stimulat... more Diagnoses of subclinicaal hypothyroidism (SCH) is biochemically made, when serum thyroid stimulating hormone (TSH) levels is elevated while free thyroid hormone levels are within normal reference range. SCH is diagnosed after excluding all other causes of elevated TSH levels. Symptoms of SCH may vary from being asymptomatic to having mild nonspecific symptoms. The risk of progression to overt hypothyroidism is related to number of factors including initial serum TSH concentration, presence of auto antibodies, family history and presence goiter. Various screening recommendations for thyroid function assessment are in practice. There are still controversies surrounding SCH and associated risk of various cardiovascular diseases (CVDs), pregnancy outcomes, neuropsychiatric issues, metabolic syndrome, and dyslipidemia. Consensus will require more large randomized clinical studies involving various age groups and medical condition, especially in developing countries. All these efforts will definitely improve our understanding of disease and ultimately patient outcomes.

Life-saving systemic thrombolysis in a patient with massive pulmonary embolism and a recent hemorrhagic cerebrovascular accident

Texas Heart Institute journal / from the Texas Heart Institute of St. Luke's Episcopal Hospital, Texas Children's Hospital, 2014

Massive pulmonary embolism is associated with mortality rates exceeding 50%. Current practice gui... more Massive pulmonary embolism is associated with mortality rates exceeding 50%. Current practice guidelines include the immediate administration of thrombolytic therapy in the absence of contraindications. However, thrombolysis for pulmonary embolism is said to be absolutely contraindicated in the presence of recent hemorrhagic stroke and other conditions. The current contraindications to thrombolytic therapy have been extrapolated from data on acute coronary syndrome and are not specific for venous thromboembolic disease. Some investigators have proposed that the current contraindications be viewed as relative, rather than absolute, in cases of high-risk pulmonary embolism. We present the case of a 60-year-old woman in whom massive pulmonary embolism led to cardiac arrest with pulseless electrical activity. Eight weeks earlier, she had sustained a hemorrhagic cerebrovascular accident-a classic absolute contraindication to thrombolytic therapy. Despite this practice guideline, we administered tissue plasminogen activator systemically in order to save the patient's life. This therapy did not evoke intracranial bleeding, and the patient was eventually discharged from the hospital. Until guidelines specific to venous thromboembolic disease are developed, we think that the current contraindications to thrombolysis should be considered on an individual basis in patients who are at high risk of death from massive pulmonary embolism.

Capital inflows and Economic growth in Pakistan

This study intends to investigate the impact of foreign capital inflow on economic growth of Paki... more This study intends to investigate the impact of foreign capital inflow on economic growth of Pakistan during the period of 1985-2010. The empirical analysis is based on multiple regression technique. Results show that foreign direct investment (FDI), foreign portfolio ...

2014 International Symposium on Technology Management and Emerging Technologies, 2014

Current global Municipal Solid Waste (MSW) generation level is 1.3 billion tons per year, and is ... more Current global Municipal Solid Waste (MSW) generation level is 1.3 billion tons per year, and is expected to increase to approximately 2.2 billion tons per year in 2025. This amount may result in significant health, environmental, aesthetic, land-use resources, and economic concerns if not managed properly. Waste to Energy (WTE) is a viable option for disposal of MSW and energy generation. This paper presents a brief review of WTE technologies; reviews the current market status of the WTE; and forecasts the potential global annual investment in this sector. The research findings show that incineration is the dominant technology utilized to date. Advanced technologies such as Plasma Arc Gasification are gaining momentum in developed countries, whereas biomethanation technology is expanding at a high rate in developing countries in the last decade. Globally, WTE will play a significant role in minimizing MSW challenges and will contribute to the emerging renewable energy market in the near future.

iBATD: A New Routing Metric for Multi-radio Wireless Mesh Networks

2012 Ninth International Conference on Information Technology - New Generations, 2012

Extensible Debuggers for Extensible Languages

Softwaretechnik-Trends, 2013

PW187 Antihypertensive drug utilization and conformity to current guidelines in Bahraini hypertensive population

Global Heart, 2014

2013 7th IEEE GCC Conference and Exhibition (GCC), 2013

The potential and effectiveness of a hybrid intelligent PSS controller combining the advantages o... more The potential and effectiveness of a hybrid intelligent PSS controller combining the advantages of both differential evolution (DE) and tabu search (TS) is assessed in this paper. The controller is incorporated in a single machine infinite bus (SMIB) system with a synchronous generator. An analysis is also carried on the quality of results if various parameters of the differential evolution like crossover, mutation and population size of the algorithm is varied. At the end a comparison is made between the controller based totally on differential evolution and the one designed with the hybrid technique.

Abstract¾In this paper, we consider joint scheduling of jobs and preventive maintenance operation... more Abstract¾In this paper, we consider joint scheduling of jobs and preventive maintenance operations on a single machine with an objective to minimize the total earliness and tardiness of jobs about a common due date. The properties of an optimal schedule are identified and utilized to develop a constructive heuristic and a lower bound estimate. The properties are also utilized to hybridize Tabu search and Simulated Annealing algorithms. A numerical study with over 3200 randomly generated problems is reported to demonstrate the performance of the proposed solution methods. The study shows that the effectiveness of the proposed lower bound and constructive heuristic is sensitive to maintenance related parameters. We also show that hybridized Tabu search and Simulated Annealing algorithms are efficient approaches to solve the problem.

This research based on the role of agriculture in the economic growth of Pakistan. Secondary data... more This research based on the role of agriculture in the economic growth of Pakistan. Secondary data has been collected from the year 1980-2010 from the government authentic websites. For this Purpose Simple regression applied to identify the significance relationship of Agricultural sub-sectors with GDP. Results suggested that there is the significance role of agriculture sub-sectors towards the economic growth only forestry showed insignificant relationship with GDP. Another objective is based on to know the contribution of each sub-sector over the aggregate agriculture amount. Result suggest that crops and livestock's total contribute 91% combined in the aggregate agriculture sector that represent significance contribution for the performance regarding in this sector while Fisheries and forestry have minimal contribution because of many reasons, major reasons involved low investment intensity in this sector , insufficient facilities , untrained and unskillful labor force engaged with it .

Simulation Tool for Testing and Validating UAV Autopilots in Wind Gust Environments

AIAA Atmospheric Flight Mechanics Conference, 2012

An Integrated Approach to Pricing, Inventory, and Market Segmentation Decisions with Demand Leakage

Operations Research Proceedings, 2013

2014 International Conference on Industrial Automation, Information and Communications Technology, 2014

In this paper we present two computationally efficient methods for computing the past and future ... more In this paper we present two computationally efficient methods for computing the past and future input-output data for subspace system identification. The proposed methods employ Direct and Parallel QR decomposition for tall and skinny matrix where many more rows than columns are involved. Data matrix of deterministic and stochastic system has been used. The proposed methods compared to a standard QR decomposition show a significant reduction in the computational time and the complexity of the system in terms of number of operations and memory storage. The system matrices are identified by making use of Kalman filter states and Canonical Variate Algorithm (CVA). The simulation results illustrate that proposed methods require less processing time and low complexity, and provide high accuracy in identifying the system parameters compared to the standard QR decomposition.

Perioperative stent thrombosis

Interventional Cardiology, 2010

International Journal of Fruit Science, 2012

Fruit drop is a major problem resulting in low production and reduction in the income of mango gr... more Fruit drop is a major problem resulting in low production and reduction in the income of mango growers in tropical and subtropical regions. Growth regulators, naphthalene acetic acid, gibberellic acid, and 2, 4-dichloro phenoxy acetic acid at the rates of (15, 25, and 35 ppm) were sprayed at full bloom stage on a popular mango cultivar ‘Dusehri’ growing in the subtropical region of Faisalabad in Pakistan. All of the treatments significantly influenced the number of fruits retained at pea, marble, and at harvest stages of fruit growth as compared to the control. Among the treatments, gibberellic acid sprayed at 35 ppm proved to be very effective with 31% more fruit retention than the control. In regard to fruit quality, gibberellic acid (35 ppm) and 2, 4-dichloro phenoxy acetic acid (15 ppm) resulted in a significant enhancement of fruit size in terms of fruit weight (140.8 and 130.1 g), which was 17.6 and 8.7% that of the control (119.8 g), respectively. The treatment 2, 4-D (35 ppm) recorded significantly higher TSS (19.5 °Brix) and TSS to titratable acid ratio over the control. Ascorbic acid content was significantly higher with 35 ppm NAA (61.9 mg/100 ml), while total sugars (20.4%) were significantly higher in 2, 4-D (35 ppm) than the control (11.4%). In general, application of growth regulators resulted in improved fruit retention and fruit quality.

Journal of Quality in Maintenance Engineering, 2007

Purpose -The purpose of this paper is to compare the effectiveness of two meta-heuristics in solv... more Purpose -The purpose of this paper is to compare the effectiveness of two meta-heuristics in solving the problem of scheduling maintenance operations and jobs processing on a single machine. Design/methodology/approach -The two meta-heuristic algorithms, tabu search and simulated annealing are hybridized using the properties of an optimal schedule identified in the existing literature to the problem. A lower bound is also suggested utilizing these properties. Finding -In a numerical experimentation with large size problems, the best-known heuristic algorithm to the problem is compared with the tabu search and simulated annealing algorithms. The study shows that the meta-heuristic algorithms outperform the heuristic algorithm. In addition, the developed meta-heuristics tend to be more robust against the problem-related parameters than the existing algorithm. Research limitations/implications -A future work may consider the possibility of machine failure along with the preventive maintenance. This relaxes the assumption that the machine cannot fail but it is rather maintained preventively. The multi-criteria scheduling can also be considered as an avenue of future work. The problem can also be considered with stochastic parameters such that the processing times of the jobs and the maintenance related parameters are random and follow a known probability distribution function. Practical implications -The usefulness of meta-heuristic algorithms is demonstrated for solving a large scale NP-hard combinatorial optimization problem. The paper also shows that the utilization of the directed search methods such as hybridization could substantially improve the performance of a meta-heuristic. Originality/value -This research highlights the impact of utilizing the directed search methods to cause hybridization in meta-heuristic and the resulting improvement in their performance for large-scale optimization.

International Journal of Applied Decision Sciences, 2010

Diphtheria in an adult: how well prepared are we in tackling the disease? A case report

Indian journal of otolaryngology and head and neck surgery : official publication of the Association of Otolaryngologists of India, 2011

Diphtheria is a forgotten communicable disease and presumed to be under sufficient control so muc... more Diphtheria is a forgotten communicable disease and presumed to be under sufficient control so much so that life savings drugs required for its treatment has disappeared from most hospitals. Contrary to this belief, classical diphtheria continues to exist in many parts of India despite extensive immunizations campaigns raising the suspicion of resurgence. The absence of essential drugs in treatment of this condition has further worsened the situation. The expenditure involved in procuring these drugs is yet another constraint. We here by present one such case of adult diphtheria and discuss the problems associated with its diagnosis and treatment.

An epidemiological study of urban and rural children in Pakistan: examining the relationship between delayed psychomotor development, low birth weight and postnatal growth failure

Transactions of the Royal Society of Tropical Medicine and Hygiene, 2015

Low birth weight is known to be associated with postnatal growth failure. It is not yet establish... more Low birth weight is known to be associated with postnatal growth failure. It is not yet established that both conditions are determinants of psychomotor development. The study investigated whether or not low birth weight leads to delayed psychomotor development of a child, and whether it can be mitigated by adequate postnatal growth. A cross-sectional study was conducted in 2002 in 15 rural and 11 urban communities of Sindh province, Pakistan. Assessment of 1234 children less than 3 years of age included Bayley's Scale of Infant Development II, socioeconomic questionnaire and anthropometry; WHO standards were used to calculate z-scores of height-for-age, weight-for-height and weight-for-age. The underlying study hypotheses were tested through multiple regression modelling. Out of 1219 children, 283 (23.2%) had delayed psychomotor development and 639 (52.4%) were undernourished according to the composite index of anthropometric failure. Strong negative associations with the psychomotor development index were detected between stunting and being underweight, with a larger magnitude of effect for stunting (p<0.001). The strong relationship persisted even when the analysis was restricted to non-malnourished children. The psychomotor index increased by 2.07 points with every unit increase in height-for-age z-score. The relationship between low birth weight and psychomotor development appears to be mediated largely by postnatal growth and nutritional status. This association suggests that among undernourished children there is significant likelihood of a group that is developmentally delayed. It is important to emphasize developmental needs in programmes that target underprivileged children.

Indian journal of endocrinology and metabolism, 2012

In the month of Ramadan, patients with thyroid diseases, most of the time, do not need treatment ... more In the month of Ramadan, patients with thyroid diseases, most of the time, do not need treatment adjustments and can fast safely without any health hazards. Patients with hypothyroidism taking thyroxine can take their tablets on an empty stomach at bedtime instead of half an hour before Sehr. Patients with hyperthyroidism, on methimazole/carbimazole can continue their dose in once or twice daily regimes, while those on propylthiouracil need to be switched. Hyperthyroid patients with severe symptoms should start treatment immediately and can avoid fast for few days after a consultation with their religious scholar.

Subclinical hypothyroidism: Controversies to consensus

Indian journal of endocrinology and metabolism, 2013

Diagnoses of subclinicaal hypothyroidism (SCH) is biochemically made, when serum thyroid stimulat... more Diagnoses of subclinicaal hypothyroidism (SCH) is biochemically made, when serum thyroid stimulating hormone (TSH) levels is elevated while free thyroid hormone levels are within normal reference range. SCH is diagnosed after excluding all other causes of elevated TSH levels. Symptoms of SCH may vary from being asymptomatic to having mild nonspecific symptoms. The risk of progression to overt hypothyroidism is related to number of factors including initial serum TSH concentration, presence of auto antibodies, family history and presence goiter. Various screening recommendations for thyroid function assessment are in practice. There are still controversies surrounding SCH and associated risk of various cardiovascular diseases (CVDs), pregnancy outcomes, neuropsychiatric issues, metabolic syndrome, and dyslipidemia. Consensus will require more large randomized clinical studies involving various age groups and medical condition, especially in developing countries. All these efforts will definitely improve our understanding of disease and ultimately patient outcomes.

Life-saving systemic thrombolysis in a patient with massive pulmonary embolism and a recent hemorrhagic cerebrovascular accident

Texas Heart Institute journal / from the Texas Heart Institute of St. Luke's Episcopal Hospital, Texas Children's Hospital, 2014

Massive pulmonary embolism is associated with mortality rates exceeding 50%. Current practice gui... more Massive pulmonary embolism is associated with mortality rates exceeding 50%. Current practice guidelines include the immediate administration of thrombolytic therapy in the absence of contraindications. However, thrombolysis for pulmonary embolism is said to be absolutely contraindicated in the presence of recent hemorrhagic stroke and other conditions. The current contraindications to thrombolytic therapy have been extrapolated from data on acute coronary syndrome and are not specific for venous thromboembolic disease. Some investigators have proposed that the current contraindications be viewed as relative, rather than absolute, in cases of high-risk pulmonary embolism. We present the case of a 60-year-old woman in whom massive pulmonary embolism led to cardiac arrest with pulseless electrical activity. Eight weeks earlier, she had sustained a hemorrhagic cerebrovascular accident-a classic absolute contraindication to thrombolytic therapy. Despite this practice guideline, we administered tissue plasminogen activator systemically in order to save the patient's life. This therapy did not evoke intracranial bleeding, and the patient was eventually discharged from the hospital. Until guidelines specific to venous thromboembolic disease are developed, we think that the current contraindications to thrombolysis should be considered on an individual basis in patients who are at high risk of death from massive pulmonary embolism.

Capital inflows and Economic growth in Pakistan

This study intends to investigate the impact of foreign capital inflow on economic growth of Paki... more This study intends to investigate the impact of foreign capital inflow on economic growth of Pakistan during the period of 1985-2010. The empirical analysis is based on multiple regression technique. Results show that foreign direct investment (FDI), foreign portfolio ...

2014 International Symposium on Technology Management and Emerging Technologies, 2014

Current global Municipal Solid Waste (MSW) generation level is 1.3 billion tons per year, and is ... more Current global Municipal Solid Waste (MSW) generation level is 1.3 billion tons per year, and is expected to increase to approximately 2.2 billion tons per year in 2025. This amount may result in significant health, environmental, aesthetic, land-use resources, and economic concerns if not managed properly. Waste to Energy (WTE) is a viable option for disposal of MSW and energy generation. This paper presents a brief review of WTE technologies; reviews the current market status of the WTE; and forecasts the potential global annual investment in this sector. The research findings show that incineration is the dominant technology utilized to date. Advanced technologies such as Plasma Arc Gasification are gaining momentum in developed countries, whereas biomethanation technology is expanding at a high rate in developing countries in the last decade. Globally, WTE will play a significant role in minimizing MSW challenges and will contribute to the emerging renewable energy market in the near future.

iBATD: A New Routing Metric for Multi-radio Wireless Mesh Networks

2012 Ninth International Conference on Information Technology - New Generations, 2012

Extensible Debuggers for Extensible Languages

Softwaretechnik-Trends, 2013

PW187 Antihypertensive drug utilization and conformity to current guidelines in Bahraini hypertensive population

Global Heart, 2014

2013 7th IEEE GCC Conference and Exhibition (GCC), 2013

The potential and effectiveness of a hybrid intelligent PSS controller combining the advantages o... more The potential and effectiveness of a hybrid intelligent PSS controller combining the advantages of both differential evolution (DE) and tabu search (TS) is assessed in this paper. The controller is incorporated in a single machine infinite bus (SMIB) system with a synchronous generator. An analysis is also carried on the quality of results if various parameters of the differential evolution like crossover, mutation and population size of the algorithm is varied. At the end a comparison is made between the controller based totally on differential evolution and the one designed with the hybrid technique.

Abstract¾In this paper, we consider joint scheduling of jobs and preventive maintenance operation... more Abstract¾In this paper, we consider joint scheduling of jobs and preventive maintenance operations on a single machine with an objective to minimize the total earliness and tardiness of jobs about a common due date. The properties of an optimal schedule are identified and utilized to develop a constructive heuristic and a lower bound estimate. The properties are also utilized to hybridize Tabu search and Simulated Annealing algorithms. A numerical study with over 3200 randomly generated problems is reported to demonstrate the performance of the proposed solution methods. The study shows that the effectiveness of the proposed lower bound and constructive heuristic is sensitive to maintenance related parameters. We also show that hybridized Tabu search and Simulated Annealing algorithms are efficient approaches to solve the problem.

This research based on the role of agriculture in the economic growth of Pakistan. Secondary data... more This research based on the role of agriculture in the economic growth of Pakistan. Secondary data has been collected from the year 1980-2010 from the government authentic websites. For this Purpose Simple regression applied to identify the significance relationship of Agricultural sub-sectors with GDP. Results suggested that there is the significance role of agriculture sub-sectors towards the economic growth only forestry showed insignificant relationship with GDP. Another objective is based on to know the contribution of each sub-sector over the aggregate agriculture amount. Result suggest that crops and livestock's total contribute 91% combined in the aggregate agriculture sector that represent significance contribution for the performance regarding in this sector while Fisheries and forestry have minimal contribution because of many reasons, major reasons involved low investment intensity in this sector , insufficient facilities , untrained and unskillful labor force engaged with it .

Simulation Tool for Testing and Validating UAV Autopilots in Wind Gust Environments

AIAA Atmospheric Flight Mechanics Conference, 2012

An Integrated Approach to Pricing, Inventory, and Market Segmentation Decisions with Demand Leakage

Operations Research Proceedings, 2013

2014 International Conference on Industrial Automation, Information and Communications Technology, 2014

In this paper we present two computationally efficient methods for computing the past and future ... more In this paper we present two computationally efficient methods for computing the past and future input-output data for subspace system identification. The proposed methods employ Direct and Parallel QR decomposition for tall and skinny matrix where many more rows than columns are involved. Data matrix of deterministic and stochastic system has been used. The proposed methods compared to a standard QR decomposition show a significant reduction in the computational time and the complexity of the system in terms of number of operations and memory storage. The system matrices are identified by making use of Kalman filter states and Canonical Variate Algorithm (CVA). The simulation results illustrate that proposed methods require less processing time and low complexity, and provide high accuracy in identifying the system parameters compared to the standard QR decomposition.

Perioperative stent thrombosis

Interventional Cardiology, 2010

International Journal of Fruit Science, 2012

Fruit drop is a major problem resulting in low production and reduction in the income of mango gr... more Fruit drop is a major problem resulting in low production and reduction in the income of mango growers in tropical and subtropical regions. Growth regulators, naphthalene acetic acid, gibberellic acid, and 2, 4-dichloro phenoxy acetic acid at the rates of (15, 25, and 35 ppm) were sprayed at full bloom stage on a popular mango cultivar ‘Dusehri’ growing in the subtropical region of Faisalabad in Pakistan. All of the treatments significantly influenced the number of fruits retained at pea, marble, and at harvest stages of fruit growth as compared to the control. Among the treatments, gibberellic acid sprayed at 35 ppm proved to be very effective with 31% more fruit retention than the control. In regard to fruit quality, gibberellic acid (35 ppm) and 2, 4-dichloro phenoxy acetic acid (15 ppm) resulted in a significant enhancement of fruit size in terms of fruit weight (140.8 and 130.1 g), which was 17.6 and 8.7% that of the control (119.8 g), respectively. The treatment 2, 4-D (35 ppm) recorded significantly higher TSS (19.5 °Brix) and TSS to titratable acid ratio over the control. Ascorbic acid content was significantly higher with 35 ppm NAA (61.9 mg/100 ml), while total sugars (20.4%) were significantly higher in 2, 4-D (35 ppm) than the control (11.4%). In general, application of growth regulators resulted in improved fruit retention and fruit quality.