Zahoor Ahmed - Academia.edu (original) (raw)
Papers by Zahoor Ahmed
Cureus, 2020
Background Since the first case of coronavirus disease-19 (COVID-19) in Pakistan was reported in ... more Background Since the first case of coronavirus disease-19 (COVID-19) in Pakistan was reported in February 2020, the medical and paramedical staff has been working on the frontlines to deal with this disease. They have been facing significant strain and stress due to the pandemic, affecting their social, mental, and personal life. The purpose of this study is to investigate the psychological effects of the COVID-19 pandemic, etiology, personal coping mechanisms, and the strategies that are being adopted to reduce stress by the healthcare workers (HCWs) working in COVID-19 dedicated wards (group 2) and compare it with staff working in other departments but not in COVID-19 wards amid this pandemic (group 1) in various hospitals of Lahore, Pakistan. Methods The comparative cross-sectional study was designed which included doctors, nurses, and allied health professionals from various hospitals of Lahore, Pakistan. A questionnaire was designed which consisted of five sections, and 51 questions. A Chi-square test was used to compare the responses between these two groups. Results The study questionnaire was submitted by 200 participants, 100 responses for each group (see the Appendix). In group 1, HCWs not working in COVID-19 dedicated floors were afraid of getting infected, transmitting the infection to their families and concerned about using personal protective equipment (PPE) improperly. They reported a lack of concentration and tense muscles. The coping mechanisms of this group were exercise, strict precautions at work, and social distancing measures. While HCWs serving in COVID-19 dedicated wards were concerned and afraid of putting their families at risk by working in the high-risk environment; the major stresses in this group were: lack of knowledge about proper strategies for treatment, they faced insecurity due to physical and verbal violence by caretakers of COVID-19 patients, and lack of concentration. The coping mechanism was the support of their families and taking strict precautions, with self-isolation if required, to avoid any disease transmission to their families. The proposed strategies to be implemented included teaching skills for self-rescue as well as the implementation of policies at the administrative level to reduce working hours and frequent shift rotation. Conclusion The COVID-19 outbreak posed a great deal of mental stress among HCWs working on the COVID-19 floor as well as those serving in other departments of the hospital. The HCWs from group 1 were most afraid of getting infected and putting family members at risk, experienced tense muscles and lack of concentration, coped their stress by exercise and being more vigilant, and suggested the strategies of teaching skills for self-rescue and better community awareness. While the staff from the second group were most afraid of being the source of infection and violence from the caretakers of patients, experienced tense muscles, used family support, and strict isolation measures as coping mechanisms and suggested the strategies of selfrescue and increase in wages of directly exposed healthcare workers to deal with such pandemics in future in a better way.
The physico–chemical properties of two varieties of grape fruit in the laboratory of the Horticul... more The physico–chemical properties of two varieties of grape fruit in the laboratory of the Horticulture Department of Sindh Agriculture University Tandojam were determined. Two varieties viz. Foster and Duncan with purchase intervals i.e. I1 (11th November), I2 (11th December) and I3 (11th January 1990) were included. The study depicted that intervals had significant effect on physical characters like length of fruit, volume of fruit, number of immature seeds, total number of seeds/fruit, but did not show significant effect on other physical character studied. Varieties had significant effect on thickness of rind and length of fruit only. It was noticed that advanced season fruit had better physical properties than early season. Foster had better chemical properties like moisture, ash, total solids pH, acidity, reducing sugar, nonreducing sugar and vitamin C than Duncan which were affected significantly by various intervals and varieties. The interactions between intervals X varieties...
International Journal of Advanced Computer Science and Applications, 2020
In this paper, it has been proved that the transmission rate can be increased substantially by al... more In this paper, it has been proved that the transmission rate can be increased substantially by alleviating cochannel interference by use of beamforming techniques at relay stations. In this setup, the downlink transmission segment is taken into consideration from the Base Station (BS) to two Mobile Stations (MS). The data is transmitted concurrently through two Relay Stations (RS) using the same frequency channel. It is assumed that the RSs use decode-and-forward (DF) strategy. In this technique of beamforming, pre-coding vectors are used at the RS to alleviate co-channel interferences. Due to this strategy, each user will be able to get its own data sans interference. Two pre-coding techniques which incarnate two different transmission protocols have been proposed. Simulations results show that such type of schemas outperforms their counterpart brethren schemas.
JOURNAL OF MECHANICS OF CONTINUA AND MATHEMATICAL SCIENCES, 2019
As the world thrives for power in order to strengthen its industrial demands and economy, traditi... more As the world thrives for power in order to strengthen its industrial demands and economy, traditional power sources are becoming more and more difficult to fulfill the rising demands. Renewable energy demand in the world whether third world countries or leading ones of the era, has seen a boost in recent decades. Photovoltaic and solar energy is an ongoing trend in power system designers, researchers and companies. As sun is the free source of energy, the world now a days achieves 30% of its total energy from it. Solar power is sporadic and is not constant, as solar source at the ground level is extremely reliant on clouds density, atmospheric conditions with other restrictions. These limitations become a challenging task for engineers and energy managers to focus the energy constraints and came up with managing plan in order to produce and manage energy efficiently in smart grids. This paper focuses on energy constraints of both solar resource and PV power alongside smart grid energy management.
In the body of the literature, it is celebrated that human well-being becomes the key subject in ... more In the body of the literature, it is celebrated that human well-being becomes the key subject in measuring the economic development. The purpose of this study is to classify the countries with respect to their standard of living on the basis of economic growth, health, education and quality of environment by using cluster analysis and self-organizing feature map. The data have been obtained from the World Bank Report 2011, United Nation Development Program and the United Nation Statistics Division. The results of this study reveal that health and quality of environment indicators playing most important role for classification of the countries.
Investigative Ophthalmology & Visual Science, 2005
Int'l J. of Communications, Network and System Sciences, 2010
Cureus, 2020
Background Since the first case of coronavirus disease-19 (COVID-19) in Pakistan was reported in ... more Background Since the first case of coronavirus disease-19 (COVID-19) in Pakistan was reported in February 2020, the medical and paramedical staff has been working on the frontlines to deal with this disease. They have been facing significant strain and stress due to the pandemic, affecting their social, mental, and personal life. The purpose of this study is to investigate the psychological effects of the COVID-19 pandemic, etiology, personal coping mechanisms, and the strategies that are being adopted to reduce stress by the healthcare workers (HCWs) working in COVID-19 dedicated wards (group 2) and compare it with staff working in other departments but not in COVID-19 wards amid this pandemic (group 1) in various hospitals of Lahore, Pakistan. Methods The comparative cross-sectional study was designed which included doctors, nurses, and allied health professionals from various hospitals of Lahore, Pakistan. A questionnaire was designed which consisted of five sections, and 51 questions. A Chi-square test was used to compare the responses between these two groups. Results The study questionnaire was submitted by 200 participants, 100 responses for each group (see the Appendix). In group 1, HCWs not working in COVID-19 dedicated floors were afraid of getting infected, transmitting the infection to their families and concerned about using personal protective equipment (PPE) improperly. They reported a lack of concentration and tense muscles. The coping mechanisms of this group were exercise, strict precautions at work, and social distancing measures. While HCWs serving in COVID-19 dedicated wards were concerned and afraid of putting their families at risk by working in the high-risk environment; the major stresses in this group were: lack of knowledge about proper strategies for treatment, they faced insecurity due to physical and verbal violence by caretakers of COVID-19 patients, and lack of concentration. The coping mechanism was the support of their families and taking strict precautions, with self-isolation if required, to avoid any disease transmission to their families. The proposed strategies to be implemented included teaching skills for self-rescue as well as the implementation of policies at the administrative level to reduce working hours and frequent shift rotation. Conclusion The COVID-19 outbreak posed a great deal of mental stress among HCWs working on the COVID-19 floor as well as those serving in other departments of the hospital. The HCWs from group 1 were most afraid of getting infected and putting family members at risk, experienced tense muscles and lack of concentration, coped their stress by exercise and being more vigilant, and suggested the strategies of teaching skills for self-rescue and better community awareness. While the staff from the second group were most afraid of being the source of infection and violence from the caretakers of patients, experienced tense muscles, used family support, and strict isolation measures as coping mechanisms and suggested the strategies of selfrescue and increase in wages of directly exposed healthcare workers to deal with such pandemics in future in a better way.
The physico–chemical properties of two varieties of grape fruit in the laboratory of the Horticul... more The physico–chemical properties of two varieties of grape fruit in the laboratory of the Horticulture Department of Sindh Agriculture University Tandojam were determined. Two varieties viz. Foster and Duncan with purchase intervals i.e. I1 (11th November), I2 (11th December) and I3 (11th January 1990) were included. The study depicted that intervals had significant effect on physical characters like length of fruit, volume of fruit, number of immature seeds, total number of seeds/fruit, but did not show significant effect on other physical character studied. Varieties had significant effect on thickness of rind and length of fruit only. It was noticed that advanced season fruit had better physical properties than early season. Foster had better chemical properties like moisture, ash, total solids pH, acidity, reducing sugar, nonreducing sugar and vitamin C than Duncan which were affected significantly by various intervals and varieties. The interactions between intervals X varieties...
International Journal of Advanced Computer Science and Applications, 2020
In this paper, it has been proved that the transmission rate can be increased substantially by al... more In this paper, it has been proved that the transmission rate can be increased substantially by alleviating cochannel interference by use of beamforming techniques at relay stations. In this setup, the downlink transmission segment is taken into consideration from the Base Station (BS) to two Mobile Stations (MS). The data is transmitted concurrently through two Relay Stations (RS) using the same frequency channel. It is assumed that the RSs use decode-and-forward (DF) strategy. In this technique of beamforming, pre-coding vectors are used at the RS to alleviate co-channel interferences. Due to this strategy, each user will be able to get its own data sans interference. Two pre-coding techniques which incarnate two different transmission protocols have been proposed. Simulations results show that such type of schemas outperforms their counterpart brethren schemas.
JOURNAL OF MECHANICS OF CONTINUA AND MATHEMATICAL SCIENCES, 2019
As the world thrives for power in order to strengthen its industrial demands and economy, traditi... more As the world thrives for power in order to strengthen its industrial demands and economy, traditional power sources are becoming more and more difficult to fulfill the rising demands. Renewable energy demand in the world whether third world countries or leading ones of the era, has seen a boost in recent decades. Photovoltaic and solar energy is an ongoing trend in power system designers, researchers and companies. As sun is the free source of energy, the world now a days achieves 30% of its total energy from it. Solar power is sporadic and is not constant, as solar source at the ground level is extremely reliant on clouds density, atmospheric conditions with other restrictions. These limitations become a challenging task for engineers and energy managers to focus the energy constraints and came up with managing plan in order to produce and manage energy efficiently in smart grids. This paper focuses on energy constraints of both solar resource and PV power alongside smart grid energy management.
In the body of the literature, it is celebrated that human well-being becomes the key subject in ... more In the body of the literature, it is celebrated that human well-being becomes the key subject in measuring the economic development. The purpose of this study is to classify the countries with respect to their standard of living on the basis of economic growth, health, education and quality of environment by using cluster analysis and self-organizing feature map. The data have been obtained from the World Bank Report 2011, United Nation Development Program and the United Nation Statistics Division. The results of this study reveal that health and quality of environment indicators playing most important role for classification of the countries.
Investigative Ophthalmology & Visual Science, 2005
Int'l J. of Communications, Network and System Sciences, 2010