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Papers by Mohsin Ali

Research paper thumbnail of Synthesis, Characterization and Enzyme Inhibition Activity of Organophosphorus Trichalcones Containing Core-Phosphate Moiety

Asian Journal of Chemistry, 2019

Facile synthesis of various organophosphorus trichalcones, possessing substantial insecticidal ac... more Facile synthesis of various organophosphorus trichalcones, possessing substantial insecticidal activity, by using tris(4-acetylphenyl)-phosphate (3) and substituted benzaldehydes as a precursor has been reported. Key precursor 3 has been prepared under mild conditions in presence of tetrabutylammonium bromide (TBAB) as a phase transfer catalyst. All the synthesized compounds (5a-h) were screened for their antibacterial activity and inhibition of α-amylase of insect pest, Tribolium castaneum (Herbst) (Coleoptera: Tenebrionadeae). Biological activity evaluation study revealed that among all the compounds screened, compound 5g found to have promising inhibition of α-amylase of insect pest, Tribolium castaneum. All the synthesized compounds revealed insignificant antimicrobial activity against pathogenic bacteria even at 500 μg/mL.

Research paper thumbnail of Antecedents of Customer Switching Intentions: A case study of Nokia Mobile Phones’ users

Research paper thumbnail of Psychological Contracts, Antecedents and Consequences: A New Roadmap to Enhance Purchase Intentions in Social Commerce

Social commerce greatly changes buyers‘ purchasing behaviour now-a-days. Understanding the psycho... more Social commerce greatly changes buyers‘ purchasing behaviour now-a-days. Understanding the psychological mechanism of consumers‘ purchasing behaviour is important for both buyers and sellers in social commerce platform. This study will examine the nature and role of psychological contract (PC), which is an utmost important variable, in social commerce context. Psychological contract comprises a consumer‘s beliefs about the reciprocal obligations that exist between him/her and sellers or other social members. Specifically, we propose that consumers may make purchase decisions by two processes, in which two types of PC--transactional contract and relational contract are the key mediators. In addition, we further discuss the antecedents (platform website ethics, and reliability of social elements) and consequences (trust and satisfaction in platform) of PC, and their collective impact on purchase intentions. We plan to empirically test our model by collecting survey data from the users...

Research paper thumbnail of Effect of Sugarcane Bagasse Ash as Partial Cement Replacement on the Compressive Strength of Concrete

Quaid-e-Awam University Research Journal of Engineering, Science & Technology

The disposal of solid waste in open environment is a serious alarming concern that needs immediat... more The disposal of solid waste in open environment is a serious alarming concern that needs immediate attention from the researchers. The hazardous solid agro-industrial wastes which include: wheat straw ash, rice husk ash, corn cob ash and sugarcane bagasse ash (SCBA), having pozzolanic properties, have a versatile use in concrete. The solid pozzolana enhances the various concrete properties by the reaction of silicates with calcium hydroxide in the presence of water, which in result generate a saturated zone of calcium silicate hydrate (CSH) gel. This C-S-H gel reduces the amount of calcium hydroxide C(OH)2 during the hydration process of cement. Very limited research works have been done on concrete by partially replacing cement with SCBA. This research work was focused on evaluating the properties of concrete by partially replacing cement with SCBA at 0, 5, 10, and 15 percentages. Compressive strength, Strength activity index, and water absorption of all mixes were examined. And it...

Research paper thumbnail of Diffuse Retinal Hemorrhages After Uncomplicated Glaucoma Drainage Implantation

Research paper thumbnail of Green chemistry: science and politics of change

Research paper thumbnail of Identification of NAE Inhibitors Exhibiting Potent Activity in Leukemia Cells: Exploring the Structural Determinants of NAE Specificity

ACS Medicinal Chemistry Letters, 2011

Research paper thumbnail of Transcranial alternating current stimulation (tACS) modulates cortical excitability as assessed by TMS-induced phosphene thresholds

Clinical Neurophysiology, Sep 30, 2010

OBJECTIVE: Recent developments in transcranial alternating current stimulation (tACS) provide a p... more OBJECTIVE: Recent developments in transcranial alternating current stimulation (tACS) provide a powerful approach to establish the functional roles of neuronal oscillatory activities in the human brain. Here, we investigated whether tACS can reach and modulate the excitability of the visual cortex in a frequency-dependent manner. METHODS: We measured the cortical excitability of the visual cortex using single pulse transcranial magnetic stimulation (TMS) while delivering tACS to the occipital region at different frequencies (5, ...

Research paper thumbnail of Synthesis, Characterization and Enzyme Inhibition Activity of Organophosphorus Trichalcones Containing Core-Phosphate Moiety

Asian Journal of Chemistry, 2019

Facile synthesis of various organophosphorus trichalcones, possessing substantial insecticidal ac... more Facile synthesis of various organophosphorus trichalcones, possessing substantial insecticidal activity, by using tris(4-acetylphenyl)-phosphate (3) and substituted benzaldehydes as a precursor has been reported. Key precursor 3 has been prepared under mild conditions in presence of tetrabutylammonium bromide (TBAB) as a phase transfer catalyst. All the synthesized compounds (5a-h) were screened for their antibacterial activity and inhibition of α-amylase of insect pest, Tribolium castaneum (Herbst) (Coleoptera: Tenebrionadeae). Biological activity evaluation study revealed that among all the compounds screened, compound 5g found to have promising inhibition of α-amylase of insect pest, Tribolium castaneum. All the synthesized compounds revealed insignificant antimicrobial activity against pathogenic bacteria even at 500 μg/mL.

Research paper thumbnail of Antecedents of Customer Switching Intentions: A case study of Nokia Mobile Phones’ users

Research paper thumbnail of Psychological Contracts, Antecedents and Consequences: A New Roadmap to Enhance Purchase Intentions in Social Commerce

Social commerce greatly changes buyers‘ purchasing behaviour now-a-days. Understanding the psycho... more Social commerce greatly changes buyers‘ purchasing behaviour now-a-days. Understanding the psychological mechanism of consumers‘ purchasing behaviour is important for both buyers and sellers in social commerce platform. This study will examine the nature and role of psychological contract (PC), which is an utmost important variable, in social commerce context. Psychological contract comprises a consumer‘s beliefs about the reciprocal obligations that exist between him/her and sellers or other social members. Specifically, we propose that consumers may make purchase decisions by two processes, in which two types of PC--transactional contract and relational contract are the key mediators. In addition, we further discuss the antecedents (platform website ethics, and reliability of social elements) and consequences (trust and satisfaction in platform) of PC, and their collective impact on purchase intentions. We plan to empirically test our model by collecting survey data from the users...

Research paper thumbnail of Effect of Sugarcane Bagasse Ash as Partial Cement Replacement on the Compressive Strength of Concrete

Quaid-e-Awam University Research Journal of Engineering, Science & Technology

The disposal of solid waste in open environment is a serious alarming concern that needs immediat... more The disposal of solid waste in open environment is a serious alarming concern that needs immediate attention from the researchers. The hazardous solid agro-industrial wastes which include: wheat straw ash, rice husk ash, corn cob ash and sugarcane bagasse ash (SCBA), having pozzolanic properties, have a versatile use in concrete. The solid pozzolana enhances the various concrete properties by the reaction of silicates with calcium hydroxide in the presence of water, which in result generate a saturated zone of calcium silicate hydrate (CSH) gel. This C-S-H gel reduces the amount of calcium hydroxide C(OH)2 during the hydration process of cement. Very limited research works have been done on concrete by partially replacing cement with SCBA. This research work was focused on evaluating the properties of concrete by partially replacing cement with SCBA at 0, 5, 10, and 15 percentages. Compressive strength, Strength activity index, and water absorption of all mixes were examined. And it...

Research paper thumbnail of Diffuse Retinal Hemorrhages After Uncomplicated Glaucoma Drainage Implantation

Research paper thumbnail of Green chemistry: science and politics of change

Research paper thumbnail of Identification of NAE Inhibitors Exhibiting Potent Activity in Leukemia Cells: Exploring the Structural Determinants of NAE Specificity

ACS Medicinal Chemistry Letters, 2011

Research paper thumbnail of Transcranial alternating current stimulation (tACS) modulates cortical excitability as assessed by TMS-induced phosphene thresholds

Clinical Neurophysiology, Sep 30, 2010

OBJECTIVE: Recent developments in transcranial alternating current stimulation (tACS) provide a p... more OBJECTIVE: Recent developments in transcranial alternating current stimulation (tACS) provide a powerful approach to establish the functional roles of neuronal oscillatory activities in the human brain. Here, we investigated whether tACS can reach and modulate the excitability of the visual cortex in a frequency-dependent manner. METHODS: We measured the cortical excitability of the visual cortex using single pulse transcranial magnetic stimulation (TMS) while delivering tACS to the occipital region at different frequencies (5, ...

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