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Aslam, Muhammad,Ahmad, Rizwan,Yasin, Muhammad,Khan, Asim Laeeq,Shahid, Muhammad Kashif,Hossain, Shakhawat,Khan, Zakir,Jamil, Farrukh,Rafiq, Sikander,Bilad, Muhammad Roil,Kim, Jeonghwan,Kumar, Gopalakr Elsevier 2018 Bioresource technology Vol.269 No.-
<P><B>Abstract</B></P> <P>Biohydrogen as one of the most appealing energy vector for the future represents attractive avenue in alternative energy research. Recently, variety of biohydrogen production pathways has been suggested to improve the key features of the process. Nevertheless, researches are still needed to overcome remaining barriers to practical applications such as low yields and production rates. Considering practicality aspects, this review emphasized on anaerobic membrane bioreactors (AnMBRs) for biological hydrogen production. Recent advances and emerging issues associated with biohydrogen generation in AnMBR technology are critically discussed. Several techniques are highlighted that are aimed at overcoming these barriers. Moreover, environmental and economical potentials along with future research perspectives are addressed to drive biohydrogen technology towards practicality and economical-feasibility.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Anaerobic membrane bioreactor technology for biohydrogen production is overviewed. </LI> <LI> Enhancement of biohydrogen yield and generation rates via various strategies is discussed. </LI> <LI> Techno-economic and environmental impacts of this approach are addressed. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>
Muhammad Waqas,Imad-ud-din Saqib,Muhammad Imran Jamil,Mohammad Ayaz Khan,Saeed Akhter 대한비뇨의학회 2018 Investigative and Clinical Urology Vol.59 No.1
Purpose: To evaluate the impact of various computed tomography scan-based parameters of renal stones on the outcome of extracorporeal shock wave lithotripsy (ESWL). Materials and Methods: We conducted a retrospective study of patients who underwent ESWL for renal stones (sized 5–20 mm) from January 2013 to December 2016. We evaluated body mass index, location of the stone, skin-to-stone distance (SSD), stone attenuation value (SAV), stone diameter, Hounsfield density, stone area, and stone volume. Statistical analysis was done and significance was confirmed by multivariate logistic regression analysis. Results: Of the 203 patients 122 (60.1%) had successful clearance of the stone. The presence of a double J stenting, a lower pole location, a higher SAV, higher Hounsfield density, larger stone area, larger stone diameter, and higher stone volume were negative predictors of ESWL outcome. When these parameters were analyzed with multivariate logistic regression analysis, stone location, SSD, and SAV were the only significant independent predictors of the outcome of ESWL. Conclusions: Stone location, SSD, and SAV are reliable and strong predictors of ESWL outcome for the treatment of renal stones.
Muhammad Rizwan Dilshad,Atif Islam,Aneela Sabir,Muhammad Shafiq,Muhammad Taqi Zahid Butt,Aamir Ijaz,Tahir Jamil 한국공업화학회 2017 Journal of Industrial and Engineering Chemistry Vol.55 No.-
In this study zinc oxide filled and unfilled polyvinyl alcohol (PVA)/polyethylene glycol (PEG) 600 blended membranes with different degrees of cross-linking (mol%) were prepared using formaldehyde as a crosslinking agent and characterized by FTIR, SEM, TGA, mechanical analysis and permeation testing for CO2 and N2 gases. The effects of synthesis parameters like cross-linking ratio, wt.% PEG content and wt.% zinc oxide content on the membrane characteristics were also investigated. It was found that at 60 mol% degree of cross-linking and 60 wt.% PEG content, the membranes showed maximum CO2/N2 ideal selectivity of 26 and reasonable CO2 permeability of 52.9 Barrers at 25 C and 1.5 bar. It was also found that at 2 wt.% zinc oxide content, membranes showed highest CO2/N2 ideal selectivity of 112.8 and maximum CO2 permeability of 423 Barrers at 25 C and 1.5 bar.
Jamil Muhammad,J.T. Rhee 한국물리학회 2005 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.46 No.2
We used the frequency-dependent response of an ITO/Alq3(60 nm)/Al device at two different bias voltages to perform an equivalent-circuit analysis of organic light-emitting diodes. The complex impedance Z of the device was measured in the frequency range of 40 Hz 1 MHz. A Cole-Cole plot showed that there were two dielectric relaxations at a bias below the turn-on voltage and one relaxation at a bias above the turn-on voltage. We were able to interpret the frequency-dependent response in terms of the equivalent-circuit model of a contact resistance Rs in series with a parallel combination of a resistance Rp and a capacitance Cp. We obtained a contact resistance Rs of around 90 , mainly from the ITO anode.
Muhammad Fiayyaz,Khalid Mahmood Zia,Mohammad Zuber,Tahir Jamil,Muhammad Kaleem Khosa,Muhammad Asghar Jamal 한국화학공학회 2014 Korean Journal of Chemical Engineering Vol.31 No.4
Polyurethanes (PUs) prepolymers blended with bentonite nanoclay and without bentonite nanoclay wereprepared by the reaction of toluene-2,4-diisocyanate (TDI) and hydroxyl terminated polybutadiene (HTPB), and thechain was further extended with 1,4-butane diol (1,4-BDO) to get final polyurethane nanocomposites (PUNC). A mixtureof polymer and bentonite clay enriched in montmorillonite (MMT) was formed in solution polymerization, in whichMMT dispersed depending on interaction of MMT with polymer chains. The molecular structure of the monomersand the prepared PU nanocomposites was confirmed by FTIR. A series of PUNCs were prepared by varying the percentcompositions of bentonite nanoclay into the PU matrix. The existence of the clay in to the PU was confirmed byscanning electron microscope (SEM). SEM images verified the good dispersion of the bentonite nanoclay in PU matrix.
Muhammad Kamran,Nazir Javed,Ihsan Ullah,Shahid Nazir,Shakra Jamil,Muhammad Zafar Iqbal,Huma Abbas,Sajid Aleem Khan,Muhammad Ehetisham ul Haq 한국식물병리학회 2019 Plant Pathology Journal Vol.35 No.1
A great variable response was observed when PP-3 and PP-J encumbered with 116 populations of root knot nematode (RKN) at two different temperatures (25 ± 2°C and 30 ± 2°C) and concentrations (104 and 105 spores/ml). The PCR reaction amplified intergenic region between cytochrome oxidase subunit II gene (COII) and large subunit of rRNA gene (lrRNA) of the mitochondrial genome of different RKN species. The primer C2F3 and 1108 identified M. incognita with the highest frequency (52.6%) followed by M. javanica (36.8%) and M. arenaria (10.5%). The sizes of PCR products were 1.7 kb for M. incognita and M. javanica populations while populations of M. arenaria produced 1.1 kb fragment. The digestion with Hinf I yielded three different fragment length patterns on 1.5 % agarose gel. From current research it is concluded that intra-Meloidogyne genetic variability exist in RKN populations which have better encumbrance with P. penetrans.
Kamran, Muhammad,Javed, Nazir,Ullah, Ihsan,Nazir, Shahid,Jamil, Shakra,Iqbal, Muhammad Zafar,Abbas, Huma,Khan, Sajid Aleem,Haq, Muhammad Ehetisham ul The Korean Society of Plant Pathology 2019 Plant Pathology Journal Vol.35 No.1
A great variable response was observed when PP-3 and PP-J encumbered with 116 populations of root knot nematode (RKN) at two different temperatures ($25{\pm}2^{\circ}C$ and $30{\pm}2^{\circ}C$) and concentrations ($10^4$ and $10^5$ spores/ml). The PCR reaction amplified intergenic region between cytochrome oxidase subunit II gene (COII) and large subunit of rRNA gene (lrRNA) of the mitochondrial genome of different RKN species. The primer C2F3 and 1108 identified M. incognita with the highest frequency (52.6%) followed by M. javanica (36.8%) and M. arenaria (10.5%). The sizes of PCR products were 1.7 kb for M. incognita and M. javanica populations while populations of M. arenaria produced 1.1 kb fragment. The digestion with Hinf I yielded three different fragment length patterns on 1.5 % agarose gel. From current research it is concluded that intra-Meloidogyne genetic variability exist in RKN populations which have better encumbrance with P. penetrans.
Risk Factors for Lung Cancer in the Pakistani Population
Luqman, Muhammad,Javed, Muhammad Mohsin,Daud, Shakeela,Raheem, Nafeesa,Ahmad, Jamil,Khan, Amin-Ul-Haq Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.7
Background: Lung cancer is one of the most prevalent malignancies in the world and both incidence and mortality rates are continuing to rise in Pakistan. However, epidemiological studies to identify common lung cancer determinants in the Pakistani population have been limited. Materials and Methods: In this retrospective case-control study, 400 cases and 800 controls were enrolled from different hospitals of all provinces of Pakistan. Information about socio-demographic, occupational, lifestyle and dietary variables was extracted by questionnaire from all subjects. Odd ratios (ORs) and 95% confidence intervals (CIs) were calculated. and dose-response associations were also assessed for suitable factors. Results: Strong associations were observed for smoking (OR=9.4, 95%CI=6.9-12.8), pesticide exposure (OR=5.1, 95%CI=3.1-8.3), exposure to diesel exhaust (OR=3.1, 95%CI=2.1-4.5), red meat consumption (OR=2.9, 95%CI=1.8-4.7) and chicken consumption (OR=2.8, 95%CI=1.7-49). Other associated factors observed were welding fumes (OR=2.5, 95%CI=1.0-6.5), sedentary living (OR=2.0, 95%CI=1.6-2.6), family history (OR=2.0, 95%CI=0.8-4.9), wood dust (OR=1.9, 95%CI=1.2-3.1), tea consumption (OR=1.8, 95%CI=1.2-2.6), coffee consumption (OR=1.8, 95%CI=1.1-2.8), alcoholism (OR=1.7, 95%CI=1.1-2.5) and asbestos exposure(OR=1.5, 95%CI=0.5-4.4). Consumption of vegetables (OR=0.3, 95%CI=0.2-0.4), juices (OR=0.3, 95%CI=0.3-0.4), fruits (OR=0.7, 95%CI=0.5-0.9) and milk (OR=0.6, 95%CI=0.5-0.8) showed reduction in risk of lung cancer. Strongest dose-response relationships were observed for smoking ($X^2=333.8$, $p{\leq}0.0000001$), pesticide exposure ($X^2=50.9$, $p{\leq}0.0000001$) and exposure to diesel exhaust ($X^2=51.8$, $p{\leq}0.0000001$). Conclusions: Smoking, pesticide exposure, diesel exhaust and meat consumption are main lung cancer determinants in Pakistan. Consuming vegetables, fruits, milk and juices can reduce the risk of lung cancer risk, as in other countries.