Search results for: Muhammad Qasim

Items from 1 to 20 out of 152 results

article

Fabrication of polycaprolactone nanofibrous membrane‐embedded microfluidic device for water filtration

Muhammad Qasim, Duong Duy Duong, Ji Yi Lee, Nae Yoon Lee

Journal of Applied Polymer Science > 137 > 40 > n/a - n/a

In this study, we fabricated a plastic microfluidic device embedded with polycaprolactone (PCL) nanofibrous membrane for use as a filter for the removal of bacteria from contaminated water. A microfluidic device was fabricated by sandwiching an electrospun PCL nanofibrous membrane between two layers of poly(methyl methacrylate) (PMMA) substrates. On the top PMMA layer, a serpentine microchannel was...

article

Early Cretaceous to Eocene magmatic records in Ladakh arc: Constraints from U–Pb ages of Deosai volcanics, northern Pakistan

Umair Khan Jadoon, Lin Ding, Upendra Baral, Muhammad Qasim

Geological Journal > 55 > 7 > 5384 - 5397

This research provides a detailed U–Pb geochronological record of Deosai volcanics in the western Himalaya. The volcanics comprise basalt, andesite, dacite, and rhyolite and are part of the Kohistan–Ladakh arc, exposed east of the Nanga Parbat–Haramosh Massif. Based on the U–Pb ages, this volcanic suite is classified into three chronostratigraphic units: (a) Chota Pani volcanics, (b) Shatung Nala...

article

Does financial availability sustain financial, innovative, and environmental performance? Relation via opportunity recognition

Aasma Memon, Zhang Yong An, Muhammad Qasim Memon

Corporate Social Responsibility and Environmental Management > 27 > 2 > 562 - 575

Traditionally, firms tend to incline toward financial performance and profitability to surge shareholder's wealth. In the modern day, in addition to financial performance, innovative and environmental performance has also become a central effort. However, all firms are not flourished in the achievement of financial, innovative, and environmental performance, particularly small‐ and medium‐sized enterprises...

article

Ultrasound-assisted forward osmosis desalination using inorganic draw solutes

Muhammad Qasim, Faisal W. Khudhur, Ahmed Aidan, Naif A. Darwish

Ultrasonics Sonochemistry > 2020 > 61 > C

Internal concentration polarization (ICP) represents a serious challenge in forward osmosis (FO) desalination since it causes a significant decline in the water flux across the membrane. Mitigation of ICP is cumbersome since the phenomenon occurs within the membrane porous support layer and mitigation procedures such as inducing turbulence or changing the hydrodynamic conditions tend to be ineffective...

article

Performance of Asar and Genç and Huang and Yang’s Two-Parameter Estimation Methods for the Gamma Regression Model

Muhammad Amin, Muhammad Qasim, Muhammad Amanullah

Iranian Journal of Science and Technology, Transactions A: Science > 2019 > 43 > 6 > 2951-2963

This study assesses the performance of two-parameter estimation methods to combat multicollinearity in the Gamma regression model. We derived optimal values for two-parameter estimation methods in the Gamma regression model. Furthermore, we proposed some estimation methods to estimate the shrinkage parameters and these methods improve the efficiency of the two-parameter estimator. We compare the performance...

article

In vitro induction of auto-allotetraploid in a newly developed wild rice line from Oryza alta Swallen

Liusheng Zhang, Fimanekeni Ndaitavela Shivute, Muhammad Qasim Shahid, Nabieu Kamara, more

Plant Cell, Tissue and Organ Culture (PCTOC) > 2019 > 139 > 3 > 577-587

Oryza alta Swallen is an important germplasm for rice resistance breeding; however, its CCDD genome (2n = 48) resulted in low crossability when the wild rice was crossed with O. sativa and restricted the success of transferring the desirable traits into cultivated rice. Induction of polyploidy is an efficient way for overcoming the low crossability among different species. A new O. alta line, Huaye...

article

Studies on antioxidant, hepatoprotective, and vasculoprotective potential of Viola odorata and Wrightia tinctoria

Humaira Jamshed, Hasan Salman Siddiqi, Anwar‐ul‐Hassan Gilani, Jamshed Arslan, more

Phytotherapy Research > 33 > 9 > 2310 - 2318

We have reported the antidyslipidemic, antihypertensive, and Ca⁺⁺ channel blocking activities of Viola odorata (VO) and Wrightia tinctoria (WT). This study extends our understanding of their therapeutic potential by exploring the effects on biomarkers of hepatic and vascular dysfunction together with phytochemical standardization and antioxidant potential. Total phenolic compounds, total flavonoids...

article

Enhancement of epigenetic reprogramming status of porcine cloned embryos with zebularine, a DNA methyltransferase inhibitor

Anukul Taweechaipaisankul, Geon A Kim, Jun‐Xue Jin, Sanghoon Lee, more

Molecular Reproduction and Development > 86 > 8 > 1013 - 1022

Aberrant epigenetic reprogramming is known to be a major cause of inefficient somatic cell nuclear transfer (SCNT) in pigs, and use of epigenetic modification agents, such as DNA methyltransferase inhibitors (DNMTis), is a promising approach for enhancing SCNT efficacy. Here, we attempted to find the optimal condition of zebularine (Zb), a DNMTi, treatment on porcine SCNT embryos during in vitro culture...

article

Development of EST-based SSR and SNP markers in Gastrodia elata (herbal medicine) by sequencing, de novo assembly and annotation of the transcriptome

Yunsheng Wang, Muhammad Qasim Shahid, Fozia Ghouri, Sezai Ercişli, more

00003 Biotech > 2019 > 9 > 8 > 1-10

Tianma (Gastrodia elata Blume) has unique biological characteristics and high medicinal value. The wild resource of G. elata is being overutilized and should be conserved as it is already included in the list of endangered species in China. The population size of cultivated G. elata is small because of domestication bottleneck. Therefore, it is of utmost importance to evolve high-quality varieties...

article

Electrochemical determination of antioxidant activity and HPLC profiling of some dry fruits

Haji Muhammad, Iftikhar Ahmad Tahiri, Muhammad Qasim, Muhammad Ali Versiani, more

Monatshefte für Chemie - Chemical Monthly > 2019 > 150 > 7 > 1195-1203

This study explored the antioxidant activities of eight dry fruits (almond, apricot, cashew, figs, peanut, pistachio, raisins, and walnut) against electrochemically generated superoxide anion radical (O₂^·−) in a cyclic voltammetric cell. The HPLC profiling of phenolic aglycones was carried out to determine the antioxidant compounds present in these extracts. Most of the dry fruits showed strong O₂...

article

Identification of two further agriculturally important begomoviruses and their associated satellites infecting the weed Digera arvensis in Pakistan

Afzal Akram, Khalid Pervaiz Akhtar, Najeeb Ullah, Muhammad Qasim Aslam, more

European Journal of Plant Pathology > 2019 > 155 > 2 > 659-666

As well as competing with crop plants for nutrients, weeds may act as alternative hosts/reservoirs for agriculturally important viruses. The perennial weed Digera arvensis is common in and around fields of crops in Asia and has previously been shown to host begomoviruses and associated betasatellites and alphasatellites. During 2017, D. arvensis plants growing adjacent to a field of cotton in Faisalabad,...

article

Consanguinity: A blessing or menace at population level?

Munir Ahmad Bhinder, Haleema Sadia, Nasir Mahmood, Muhammad Qasim, more

Annals of Human Genetics > 83 > 4 > 214 - 219

Consanguinity has highly complex and multifaceted aspects with sociocultural as well as biological debates on its pros and cons. The biological upshot of consanguinity includes the increased homozygosity, which results in manifold increased risk of genetic disorders at family and population levels. On the other hand, in addition to social, cultural, political, and economic benefits, consanguineous...

article

Synthesis, fabrication and characterization of polymer microgel/photochromic dye-based sandwiched sensors

Mehwish Shah, Luqman Ali Shah, Muhammad Saleem Khan, Muhammad Qasim Nasar, more

Iranian Polymer Journal > 2019 > 28 > 6 > 515-525

Stimuli-responsive biosensors are empirically measurable signatures for the detection of physiological status of environment and thus can act as clinical diagnosis devices. Poly(N-isopropylacrylamide) (PNIPAM) polymeric gels are widely explored as in vivo and in vitro thermoresponsive gels by changing their lower critical solution temperature (LCST). In this perspective, multi-responsive thin film...

article

Phylogenetic analyses of human 1/2/8/20 paralogons suggest segmental duplications during animal evolution

Farhan Haq, Usman Saeed, Rida Khalid, Muhammad Qasim, more

00003 Biotech > 2019 > 9 > 6 > 1-8

Susumu Ohno hypothesized that the diversity of vertebrate gene families and genome is due to two rounds of whole genome duplications (also referred as 2R hypothesis). The quadruplicate paralogous blocks present on 1/2/8/20 chromosomes are taken as one of the evidences in favor of the 2R. In this study, we investigated that whether 2R has shaped the vertebrate evolution using gene families residing...

article

Carbohydrate metabolism and fertility related genes high expression levels promote heterosis in autotetraploid rice harboring double neutral genes

Lin Chen, Yun Yuan, Jinwen Wu, Zhixiong Chen, more

Rice > 2019 > 12 > 1 > 1-20

Background Autotetraploid rice hybrids have great potential to increase the production, but hybrid sterility is a major hindrance in the utilization of hybrid vigor in polyploid rice, which is mainly caused by pollen abortion. Our previous study showed that double pollen fertility neutral genes, Sa-n and Sb-n, can overcome hybrid sterility in autotetraploid rice. Here, we used an autotetraploid rice...

article

A Spin‐Encoded All‐Dielectric Metahologram for Visible Light

Muhammad Afnan Ansari, Inki Kim, Dasol Lee, Muhammad Hamza Waseem, more

Laser & Photonics Reviews > 13 > 5 > n/a - n/a

Dielectric materials that are low‐loss in the visible spectrum provide a promising platform to realize the pragmatic features of metasurfaces. Here, all‐dielectric, highly efficient, spin‐encoded transmission‐type metaholograms (in the visible domain) are demonstrated by utilizing hydrogenated amorphous silicon (a‐Si:H). In comparison to previously reported visible metaholograms based on TiO₂ and...

article

Sub-lethal effects of lufenuron exposure on spotted bollworm Earias vittella (Fab): key biological traits and detoxification enzymes activity

Muhammad Hafeez, Saad Jan, Muhammad Nawaz, Ehsan Ali, more

Environmental Science and Pollution Research > 2019 > 26 > 14 > 14300- 14312

Spotted bollworm, Earias vittella, is one of the most serious and devastating insect pests of vegetables and cotton. Currently, insecticides are necessary for its control in nearly all crop systems. In this paper, we evaluate the sub-lethal effects of lufenuron on biological traits and activity of detoxification enzymes: cytochrome P450 monooxygenases, esterase, and glutathione S-transeferase (GST)...

article

Comparison of UV protection properties of cotton fabrics treated with aqueous and methanolic extracts of Solanum nigrum and Amaranthus viridis plants

Muhammad Asad Saleem, Ahsan Nazir, Faiza Nazir, Pirah Ayaz, more

Photodermatology, Photoimmunology & Photomedicine > 35 > 2 > 93 - 99

Harmful effects of ultraviolet rays and protection against them have been long discussed. Numerous synthetic dyes, finishes, UV absorbers, and optical brightening agents are present in the market for decades for achieving UV protection through textiles. However, due to environmental impacts of these chemical agents, textile industry is looking for alternatives. In this regard, some natural dyes and...

article

Comparative genomic analysis of collagen gene diversity

Farhan Haq, Nabeel Ahmed, Muhammad Qasim

00003 Biotech > 2019 > 9 > 3 > 1-9

Collagen gene family, comprising 30% of the total protein mass in mammals, is the major part of extracellular matrix. To understand the complexity of collagen gene family, detailed sequence, phylogenetic and synteny analyses of 44 collagen genes were performed. According to sequence analysis results, Fibril-associated collagen with interrupted triple helices (FACITs) were identified as the most recently...

article

Chlorothalonil: an effective bacteriostatic agent for bud induction of Acacia auriculiformis under open condition (non-axenic)

Liejian Huang, Hong Wang, Muhammad Qasim Shahid, Bingshan Zeng

Plant Methods > 2019 > 15 > 1 > 1-7

Background Open tissue culture technique could be simplified by using different bacteriostatic agents. There is a great difference in the bacteriostatic effects of different antimicrobial agents on various explants. However, there is no report about the effective bacteriostatic agent for open tissue culture of Acacia auriculiformis. Results We carried out the bud induction trials under open conditions...

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INFONA - science communication portal

Search results for: Muhammad Qasim

Fabrication of polycaprolactone nanofibrous membrane‐embedded microfluidic device for water filtration

Early Cretaceous to Eocene magmatic records in Ladakh arc: Constraints from U–Pb ages of Deosai volcanics, northern Pakistan

Does financial availability sustain financial, innovative, and environmental performance? Relation via opportunity recognition

Ultrasound-assisted forward osmosis desalination using inorganic draw solutes

Performance of Asar and Genç and Huang and Yang’s Two-Parameter Estimation Methods for the Gamma Regression Model

In vitro induction of auto-allotetraploid in a newly developed wild rice line from Oryza alta Swallen

Studies on antioxidant, hepatoprotective, and vasculoprotective potential of Viola odorata and Wrightia tinctoria

Enhancement of epigenetic reprogramming status of porcine cloned embryos with zebularine, a DNA methyltransferase inhibitor

Development of EST-based SSR and SNP markers in Gastrodia elata (herbal medicine) by sequencing, de novo assembly and annotation of the transcriptome

Electrochemical determination of antioxidant activity and HPLC profiling of some dry fruits

Identification of two further agriculturally important begomoviruses and their associated satellites infecting the weed Digera arvensis in Pakistan

Consanguinity: A blessing or menace at population level?

Synthesis, fabrication and characterization of polymer microgel/photochromic dye-based sandwiched sensors

Phylogenetic analyses of human 1/2/8/20 paralogons suggest segmental duplications during animal evolution

Carbohydrate metabolism and fertility related genes high expression levels promote heterosis in autotetraploid rice harboring double neutral genes

A Spin‐Encoded All‐Dielectric Metahologram for Visible Light

Sub-lethal effects of lufenuron exposure on spotted bollworm Earias vittella (Fab): key biological traits and detoxification enzymes activity

Comparison of UV protection properties of cotton fabrics treated with aqueous and methanolic extracts of Solanum nigrum and Amaranthus viridis plants

Comparative genomic analysis of collagen gene diversity

Chlorothalonil: an effective bacteriostatic agent for bud induction of Acacia auriculiformis under open condition (non-axenic)

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