tara ghasemi - Academia.edu (original) (raw)

Papers by tara ghasemi

Research paper thumbnail of Glass powder as a partial precursor in Portland cement and alkali-activated slag mortar: A comprehensive comparative study

Construction and Building Materials, Aug 1, 2020

h i g h l i g h t s Glass powder (GP) was incorporated as a partial precursor in OPC and AAS mort... more h i g h l i g h t s Glass powder (GP) was incorporated as a partial precursor in OPC and AAS mortars. The use of GP can lead to enhancement in mechanical strength. Mortar mixes incorporating GP showed increased water absorption. The ASR expansion in AAS mortars was exacerbated by using GP, mitigating the shrinkage. The recommended GP content is 20% and 30% in OPC and AAS mortars, respectively.

Research paper thumbnail of Correlation of exhaled propofol with Narcotrend index and calculated propofol plasma levels in children undergoing surgery under total intravenous anesthesia - an observational study

BMC Anesthesiology, May 26, 2021

Background: Exhaled propofol concentrations correlate with propofol concentrations in adult human... more Background: Exhaled propofol concentrations correlate with propofol concentrations in adult human blood and the brain tissue of rats, as well as with electroencephalography (EEG) based indices of anesthetic depth. The pharmacokinetics of propofol are however different in children compared to adults. The value of exhaled propofol measurements in pediatric anesthesia has not yet been investigated. Breathing system filters and breathing circuits can also interfere with the measurements. In this study, we investigated correlations between exhaled propofol (exP) concentrations and the Narkotrend Index (NI) as well as calculated propofol plasma concentrations. Methods: A multi-capillary-column (MCC) combined with ion mobility spectrometry (IMS) was used to determine exP. Optimal positioning of breathing system filters (near-patient or patient-distant) and sample line (proximal or distal to filter) were investigated. Measurements were taken during induction (I), maintenance (M) and emergence (E) of children under total intravenous anesthesia (TIVA). Correlations between ExP concentrations and NI and predicted plasma propofol concentrations (using pediatric pharmacokinetic models Kataria and Paedfusor) were assessed using Pearson correlation and regression analysis. Results: Near-patient positioning of breathing system filters led to continuously rising exP values when exP was measured proximal to the filters, and lower concentrations when exP was measured distal to the filters. The breathing system filters were therefore subsequently attached between the breathing system tubes and the inspiratory and expiratory limbs of the anesthetic machine. ExP concentrations significantly correlated with NI and propofol concentrations predicted by pharmacokinetic models during induction and maintenance of anesthesia. During emergence, exP significantly correlated with predicted propofol concentrations, but not with NI.

Research paper thumbnail of Correlation of exhaled propofol with Narcotrend index and calculated propofol plasma levels in children undergoing surgery under total intravenous anesthesia - an observational study

BMC Anesthesiology, 2021

Background Exhaled propofol concentrations correlate with propofol concentrations in adult human ... more Background Exhaled propofol concentrations correlate with propofol concentrations in adult human blood and the brain tissue of rats, as well as with electroencephalography (EEG) based indices of anesthetic depth. The pharmacokinetics of propofol are however different in children compared to adults. The value of exhaled propofol measurements in pediatric anesthesia has not yet been investigated. Breathing system filters and breathing circuits can also interfere with the measurements. In this study, we investigated correlations between exhaled propofol (exP) concentrations and the Narkotrend Index (NI) as well as calculated propofol plasma concentrations. Methods A multi-capillary-column (MCC) combined with ion mobility spectrometry (IMS) was used to determine exP. Optimal positioning of breathing system filters (near-patient or patient-distant) and sample line (proximal or distal to filter) were investigated. Measurements were taken during induction (I), maintenance (M) and emergence...

Research paper thumbnail of The process of globalization, and its impact on the physical form of Islamic cities, with an emphasis on Iran

Bulletin de la Société Royale des Sciences de Liège, 2016

Globalization is seen beyond avoidance Due to the expansion and strengthening of mass communicati... more Globalization is seen beyond avoidance Due to the expansion and strengthening of mass communication and media are and quickly in all dimensions and aspects of human life, especially culture, society, economy and politics has penetrated And all aspects of human life is affected. Understandings of the phenomenon and the challenges and strategies for dealing with the most important responsibilities of scientists and experts from different countries are at present. The present study was to understand the importance and challenges of globalization and the threats against the Islamic Republic of Iran to analyze this phenomenon and Develop and submit to the demands of the 21st century, the country's main strategies in dealing with globalization of culture, society, economy and politics is discussed. The results show that the strategies for dealing with globalization, It can be said that the implementation of strategies and opportunities that it creates For the protection of cultural an...

Research paper thumbnail of Glass powder as a partial precursor in Portland cement and alkali-activated slag mortar: A comprehensive comparative study

Construction and Building Materials, 2020

h i g h l i g h t s Glass powder (GP) was incorporated as a partial precursor in OPC and AAS mort... more h i g h l i g h t s Glass powder (GP) was incorporated as a partial precursor in OPC and AAS mortars. The use of GP can lead to enhancement in mechanical strength. Mortar mixes incorporating GP showed increased water absorption. The ASR expansion in AAS mortars was exacerbated by using GP, mitigating the shrinkage. The recommended GP content is 20% and 30% in OPC and AAS mortars, respectively.

Research paper thumbnail of Glass powder as a partial precursor in Portland cement and alkali-activated slag mortar: A comprehensive comparative study

Construction and Building Materials, Aug 1, 2020

h i g h l i g h t s Glass powder (GP) was incorporated as a partial precursor in OPC and AAS mort... more h i g h l i g h t s Glass powder (GP) was incorporated as a partial precursor in OPC and AAS mortars. The use of GP can lead to enhancement in mechanical strength. Mortar mixes incorporating GP showed increased water absorption. The ASR expansion in AAS mortars was exacerbated by using GP, mitigating the shrinkage. The recommended GP content is 20% and 30% in OPC and AAS mortars, respectively.

Research paper thumbnail of Correlation of exhaled propofol with Narcotrend index and calculated propofol plasma levels in children undergoing surgery under total intravenous anesthesia - an observational study

BMC Anesthesiology, May 26, 2021

Background: Exhaled propofol concentrations correlate with propofol concentrations in adult human... more Background: Exhaled propofol concentrations correlate with propofol concentrations in adult human blood and the brain tissue of rats, as well as with electroencephalography (EEG) based indices of anesthetic depth. The pharmacokinetics of propofol are however different in children compared to adults. The value of exhaled propofol measurements in pediatric anesthesia has not yet been investigated. Breathing system filters and breathing circuits can also interfere with the measurements. In this study, we investigated correlations between exhaled propofol (exP) concentrations and the Narkotrend Index (NI) as well as calculated propofol plasma concentrations. Methods: A multi-capillary-column (MCC) combined with ion mobility spectrometry (IMS) was used to determine exP. Optimal positioning of breathing system filters (near-patient or patient-distant) and sample line (proximal or distal to filter) were investigated. Measurements were taken during induction (I), maintenance (M) and emergence (E) of children under total intravenous anesthesia (TIVA). Correlations between ExP concentrations and NI and predicted plasma propofol concentrations (using pediatric pharmacokinetic models Kataria and Paedfusor) were assessed using Pearson correlation and regression analysis. Results: Near-patient positioning of breathing system filters led to continuously rising exP values when exP was measured proximal to the filters, and lower concentrations when exP was measured distal to the filters. The breathing system filters were therefore subsequently attached between the breathing system tubes and the inspiratory and expiratory limbs of the anesthetic machine. ExP concentrations significantly correlated with NI and propofol concentrations predicted by pharmacokinetic models during induction and maintenance of anesthesia. During emergence, exP significantly correlated with predicted propofol concentrations, but not with NI.

Research paper thumbnail of Correlation of exhaled propofol with Narcotrend index and calculated propofol plasma levels in children undergoing surgery under total intravenous anesthesia - an observational study

BMC Anesthesiology, 2021

Background Exhaled propofol concentrations correlate with propofol concentrations in adult human ... more Background Exhaled propofol concentrations correlate with propofol concentrations in adult human blood and the brain tissue of rats, as well as with electroencephalography (EEG) based indices of anesthetic depth. The pharmacokinetics of propofol are however different in children compared to adults. The value of exhaled propofol measurements in pediatric anesthesia has not yet been investigated. Breathing system filters and breathing circuits can also interfere with the measurements. In this study, we investigated correlations between exhaled propofol (exP) concentrations and the Narkotrend Index (NI) as well as calculated propofol plasma concentrations. Methods A multi-capillary-column (MCC) combined with ion mobility spectrometry (IMS) was used to determine exP. Optimal positioning of breathing system filters (near-patient or patient-distant) and sample line (proximal or distal to filter) were investigated. Measurements were taken during induction (I), maintenance (M) and emergence...

Research paper thumbnail of The process of globalization, and its impact on the physical form of Islamic cities, with an emphasis on Iran

Bulletin de la Société Royale des Sciences de Liège, 2016

Globalization is seen beyond avoidance Due to the expansion and strengthening of mass communicati... more Globalization is seen beyond avoidance Due to the expansion and strengthening of mass communication and media are and quickly in all dimensions and aspects of human life, especially culture, society, economy and politics has penetrated And all aspects of human life is affected. Understandings of the phenomenon and the challenges and strategies for dealing with the most important responsibilities of scientists and experts from different countries are at present. The present study was to understand the importance and challenges of globalization and the threats against the Islamic Republic of Iran to analyze this phenomenon and Develop and submit to the demands of the 21st century, the country's main strategies in dealing with globalization of culture, society, economy and politics is discussed. The results show that the strategies for dealing with globalization, It can be said that the implementation of strategies and opportunities that it creates For the protection of cultural an...

Research paper thumbnail of Glass powder as a partial precursor in Portland cement and alkali-activated slag mortar: A comprehensive comparative study

Construction and Building Materials, 2020

h i g h l i g h t s Glass powder (GP) was incorporated as a partial precursor in OPC and AAS mort... more h i g h l i g h t s Glass powder (GP) was incorporated as a partial precursor in OPC and AAS mortars. The use of GP can lead to enhancement in mechanical strength. Mortar mixes incorporating GP showed increased water absorption. The ASR expansion in AAS mortars was exacerbated by using GP, mitigating the shrinkage. The recommended GP content is 20% and 30% in OPC and AAS mortars, respectively.