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Some Topological Values of Supramolecular Chain of Different Complexes of n-Salicylidene-L-Valine

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Computer Modeling in Engineering & Sciences 2023年第8期136卷 1899-1916页

作者： Yonghong Liu Muhammad Waheed Umair Saleem Muhammad Kamran jamil Muhammad naveed Mohammad Reza Farahani School of Computer Science Chengdu UniversityChengduChina Punjab School Education Department Govt Higher Secondary School Nangal Sahdan MuridkeSheikhupuraPakistan Muslim Model Girls Higher Secondary School Zafarwal NarowalPakistan Department of Mathematics Riphah International UniversityLahorePakistan School of Packaging Michigan State UniversityEast LansingUSA Department of Mathematics Iran University of Science and Technology(IUST)NarmakTehranIran

L-valine is a glycogen-type amino acid regarded among the necessary mammalian amino *** is an amino acid that is essential for protein synthesis.n-salicylidene-L-valine is gaining a lot of attention because of its unique structure and increased catalytic and cytotoxic *** explore the chain of supramolecular dialkyltin n-salicylidene-L-valine complexes 2,3,and 4 to learn more about this structure and its features regarding topological *** computed the first and second Randi′c index,harmonic index,sum-connectivity index,atom-bond-connectivity index,geometric arithmetic index and reduced reciprocal Randi′c index of Supramolecular Chain of Different Complexes of ***,we present an analysis of such structures using specific examples,as well as a comparison of topological indices.

关键词： Molecular compounds supramolecular chains topological indices

Forecasting Stock Volatility Using Wavelet-based Exponential Generalized Autoregressive Conditional Heteroscedasticity Methods

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Intelligent Automation & Soft Computing 2023年第3期35卷 2589-2601页

作者： Tariq T.Alshammari Mohd Tahir Ismail nawaf n.Hamadneh S.Al Wadi jamil J.Jaber nawa Alshammari Mohammad H.Saleh School of Mathematical Science Universiti Sains MalaysiaPenangMalaysia Department of Risk Management and Insurance Faculty of BusinessThe University of JordanJordan Department of Basic Sciences College of Science and Theoretical StudiesSaudi Electronic UniversityRiyadhSaudi Arabia

In this study,we proposed a new model to improve the accuracy of fore-casting the stock market volatility *** hypothesized model was validated empirically using a data set collected from the Saudi Arabia stock Exchange(Tada-wul).The data is the daily closed price index data from August 2011 to December 2019 with 2027 *** proposed forecasting model combines the best maximum overlapping discrete wavelet transform(MODWT)function(Bl14)and exponential generalized autoregressive conditional heteroscedasticity(EGARCH)*** results show the model's ability to analyze stock market data,highlight important events that contain the most volatile data,and improve forecast *** results were compared from a number of mathematical mod-els,which are the non-linear spectral model,autoregressive integrated moving aver-age(ARIMA)model and EGARCH *** performance of the forecasting model will be evaluated based on some of error functions such as Mean absolute percentage error(MAPE),Mean absolute scaled error(MASE)and Root means squared error(RMSE).

关键词： Predictive analytics mathematical models volatility index EGARCH model

Histological abnormalities of the small bowel mucosa in cirrhosis and portal hypertension

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World Journal of Gastroenterology 2008年第41期14卷 6370-6375页

作者： jamilé Wakim-Fleming nizar n Zein Ana Bennett Rocio Lopez Janice Santisi William D Carey Department of Gastroenterology and Hepatology Cleveland Clinic Foundation Cleveland Department of Pathology/Immunology Cleveland Clinic Foundation Cleveland Department of Quantitative Health Sciences Cleveland Clinic Foundation Cleveland

AIM: To study the small bowel (SB) mucosa on biopsy in cirrhotic patients with portal hypertension and in non-cirrhotic controls and grade fi ndings according to the Marsh criteria. METHODS: We prospectively enrolled 51 consecutive patients undergoing an upper endoscopy for their routine medical care. Twenty f ive patients with cirrhosis and portal hypertension were compared to 26 controls. We obtained coeliac serology and multiple upper small bowel biopsies on all 51 patients. A GI pathologist interpreted biopsies and graded fi ndings according to the Marsh criteria. We assessed equivalence in Marsh grade between cirrhotic and non-cirrhotic controls using the Mann-Whitney test for equivalence. RESULTS: Gender, ethnicity and age were similar between both groups. Marsh grades were equivalent between the groups. Grade of 0 was present in 96% and grade of 1 was present in 4% of both groups and there was no villus atrophy or decrease in villus/crypt ratio in patients with portal hypertension. COnCLUSIOn: This study provides evidence for the lack of villus atrophy in patients with cirrhosis and portal hypertension, and supports the continuous reliance on the Marsh criteria when the diagnosis of coeliac disease is to be made in the presence of cirrhosis.

关键词： Cirrhosis Portal hypertension Coeliac disease Marsh criteria Small bowel mucosa

negotiation Based Combinatorial Double Auction Mechanism in Cloud Computing

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Computers, Materials & Continua 2021年第11期69卷 2123-2140页

作者： Zakir Ullah Asif Umer Mahdi Zaree jamil Ahmad Faisal Alanazi noor Ul Amin Arif Iqbal Umar Ali Imran Jehangiri Muhammad Adnan Department of Information Technology Hazara University MansehraMansehra21300Pakistan Tecnologico de Monterrey School of Engineering and SciencesZapopan45201Mexico Prince Sattam bin Abdulaziz University College of EngineeringDepartment of Electrical EngineeringAlkharj16273Saudi Arabia

Cloud computing is a demanding business platform for services related to the field of *** goal of cloud customers is to access resources at a sustainable price,while the goal of cloud suppliers is to maximize their services ***,the customers would bid for every single resource type,which was a limitation of cloud resources *** solve these issues,researchers have focused on a combinatorial auction in which the resources are offered by the providers in bundles so that the user bids for their required ***,in this allocation mechanism,some drawbacks need to be tackled,such as due to the lower average bid price the users are dropped from the auction *** solve this problem,we proposed a“negotiation based Combinatorial Double Auction Mechanism for Resource Allocation(n-CDARA)in cloud computing”.The proposed method negotiates with dropped *** average bid price users are asked by our proposed mechanism to increase their bids,as by the quoted bids they will be dropped by the *** of the users that are close to winning accept the proposal and increase their bid *** proposed mechanism is implemented in a CloudSim simulation *** are compared with the latest model and performance study shows that in our proposed scheme more users win and get their requested services and the utilization of offered services is increased up to 18.4%than the existing schemes.

关键词： Cloud computing combinatorial double auction negotiation resource utilization users serve

In vivo cardiac pacemaker function of differentiated human mesenchymal stem cells from adipose tissue transplanted into porcine hearts

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World Journal of Stem Cells 2020年第10期12卷 1133-1151页

作者： Fabrice F Darche Rasmus Rivinius Ann-Kathrin rahm Eva Köllensperger Uwe Leimer Günter Germann Miriam Reiss Michael Koenen Hugo A Katus Dierk Thomas Patrick A Schweizer Department of Cardiology Medical University Hospital HeidelbergHeidelberg D-69120Germany DZHK(German Centre for Cardiovascular Research) Partner Site Heidelberg/MannheimUniversity of HeidelbergHeidelberg D-69120Germany HCR(Heidelberg Center for Heart Rhythm Disorders) Department of CardiologyMedical University Hospital HeidelbergHeidelberg D-69120Germany Department of Plastic Surgery ETHIANUM Klinik HeidelbergHeidelberg D-69115Germany Department of Molecular neurobiology Max-Planck-Institute for Medical ResearchHeidelberg D-69120Germany

BACKGROUnD Mesenchymal stem cells(MSC)modified by gene transfer to express cardiac pacemaker channels such as HCn2 or HCn4 were shown to elicit pacemaker function after intracardiac transplantation in experimental animal *** MSC derived from adipose tissue(haMSC)differentiate into cells with pacemaker properties in vitro,but little is known about their behavior after intracardiac *** To investigate whether haMSC elicit biological pacemaker function in vivo after transplantation into pig *** haMSC under native conditions(nhaMSC)or after pre-conditioning by medium differentiation(dhaMSC)(n=6 pigs each,5×106 cells/animal)were injected into the porcine left ventricular free *** receiving PBS injection served as controls(n=6).Four weeks later,total atrioventricular(AV)-block was induced by radiofrequency catheter ablation,and electronic pacemaker devices were implanted for backup stimulation and heart rate *** rate and rhythm of pigs were evaluated during a follow-up of 15 d post ablation by 12-lead-ECG with heart rate assessment,24-h continuous rate monitoring recorded by electronic pacemaker,assessment of escape recovery time,and pharmacological challenge to address catecholaminergic rate ***,hearts were analyzed by histological and immunohistochemical *** In vivo transplantation of dhaMSC into the left ventricular free wall of pigs elicited spontaneous and regular rhythms that were pace-mapped to ventricular injection sites(mean heart rate 72.2±3.6 bpm;n=6)after experimental total AV *** rhythms were stably detected over a 15-d period and were sensitive to catecholaminergic stimulation(mean maximum heart rate 131.0±6.2 bpm;n=6;PnhaMSC or PBS presented significantly lower ventricular rates(mean heart rates 47.2±2.5 bpm and 37.4±3.2 bpm,respectively;n=6 each;Pnd exhibited little sensitivity towards catecholaminergic stimulatio

关键词： Biological cardiac pacemaker Mesenchymal stem cells Differentiation Animal model Cell transplantation Stem cell therapy

Colloidal Synthesis of Silver nanoprisms in Aqueous Medium:Influence of Chemical Compounds in UV/Vis Absorption Spectra

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Advances in nanoparticles 2013年第3期2卷 217-222页

作者： Josivandro n.Silva jamil Saade Patricia M.A.Farias Eduardo Henrique Lago Falcao Research Group on nanostructures and Biological Interfaces(nIB) Federal University of Pernambuco(UFPE)RecifeBrazil Graduate Program on Materials Science(PGMTR) Federal University of Pernambuco(UFPE)RecifeBrazil

In this work we explore the influence of the factors that affect the formation of silver nanoprisms (AgnPs) with distinct size and size distribution as well as the most intense absorption peak shift. Box-Behnken design analysis was applied to optimize the production of silver nanoprism via colloidal synthesis. The analysis of the responses was based on the nanoprisms plasmon peak wavelength related to in-plane dipole (tunable band) at λmax. ≥ 420 nm. The obtained results indicate that Silver ion is the main variable for the tuning of the size and the Localized Surface Plasmon Resonance (LSPR) frequency. By using the Box-Behnken design it was possible to synthesize nanoparticles with a predictable size and to establish a rigorous control of the plasmon frequency at the range of 600 up to 800 nm.

关键词： Silver nanoprisms Localized Surface Plasmon Resonance Box-Behnken Design

Exploration of Distinct Physiological and Biochemical Alterations in Chickpea (Cicer arietinum L.) under Varying Organic Materials, Drought and Proline Application

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Phyton-International Journal of Experimental Botany 2022年第12期91卷 2775-2789页

作者： Uttam Kumer Sarker A.n.Md.Anamul Karim F.M.jamil Uddin Ahmed Khairul Hasan najrul Islam Md.Romij Uddin Md.Alamgir Hossain Sabry Hassan Mohamed M.Hassan Mahmoud F.K.Soliman Department of Agronomy Bangladesh Agricultural UniversityMymensingh2202Bangladesh Department of Crop Botany Bangladesh Agricultural UniversityMymensingh2202Bangladesh Department of Biology College of ScienceTaif UniversityTaif21944Saudi Arabia nature Conservation Sector Egyptian Environmental Affairs Agency(EEAA)Cairo11435Egypt

Chickpea yield is decreasing day by day due to drought stress,which could be an immense risk for future food security in developing *** practices could be the most excellent approach to diminish loss due to this abiotic *** current research work was designed to explore the tolerance reaction of chickpea genotypes against management practices,through morphological and biochemical parameters and evaluate yield performance across drought prone location of *** genotypes BD-6048,BD-6045,BD-6090,BD-6092 and eight management practices,e.g.,severe water stress(SWS),i.e.,without irrigation,10 cm thick mulching with rice straw(MRS),10 cm thick mulching with water hyacinth(MWH),organic amendment through compost(OAC)@3 t ha−1,organic amendment through cow dung@5 t ha−1(OACD),organic amendment through poultry manure@2 t ha−1(OAPM),inorganic amendment through proline application(IAPA)as foliar spray and 16 h hydro-priming(HP).The study revealed that the genotypes BD-6048 showed excellent performance because of the highest chlorophyll,carotenoids,phosphorus,potassium,proline and protein *** highest pod number plant−1 also increased seed yield in *** management practices,IAPA increased relative water content,carotenoids,leaf phosphorus and potassium compared to other management practices and severe water ***,BD-6084 was selected as best genotype because of a significant increase in chlorophyll a and b,carotenoids,and relative water content with *** top performing genotypes can be used for releasing variety and cultivated for sustainable production in drought prone area of Bangladesh.

关键词： Hydro-priming grain yield organic amendments photosynthetic activity

Ab-initio calculations of bandgap tuning of In1-xGax(4((4 = n, P)alloys for optoelectronic applications

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Chinese Physics B 2021年第11期30卷 387-394页

作者： Muhammad Rashid jamil M Mahmood Q Shahid M Ramay Asif Mahmood A Ghaithan H M Department of Physics Ghazi University City Campus Department of Physics COMSATS University Islamabad Basic and Applied Scientific Research Center (BASRC) College of Science of Dammam Imam Abdulrahman Bin Faisal University Department Physics College of Science Imam Abdulrahman Bin Faisal University Physics and Astronomy Department College of Science King Saud University Chemical Engineering Department College of Engineering King Saud University

The Ⅲ–V alloys and doping to tune the bandgap for solar cells and other optoelectronic devices has remained a hot topic of research for the last few decades. In the present article, the bandgap tuning and its influence on optical properties of In1-xGaxn/P, where(x = 0.0, 0.25, 0.50, 0.75, and 1.0) alloys are comprehensively analyzed by density functional theory based on full-potential linearized augmented plane wave method(FP-LAPW) and modified Becke and Johnson potentials(TB-mBJ). The direct bandgaps turn from 0.7 eV to 3.44 eV, and 1.41 eV to 2.32 eV for In1-xGaxn/P alloys,which increases their potentials for optoelectronic devices. The optical properties are discussed such as dielectric constants,refraction, absorption, optical conductivity, and reflection. The light is polarized in the low energy region with minimum reflection. The absorption and optical conduction are maxima in the visible region, and they are shifted into the ultraviolet region by Ga doping. Moreover, static dielectric constant ε1(0) is in line with the bandgap from Penn’s model.

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Effect of Preparation Method on the Physicochemical Properties of MoVnbTe Catalyst for Propane Ammoxidation to Acrylonitrile

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Journal of Chemistry and Chemical Engineering 2010年第6期4卷 29-34页

作者： Ramli Anita Othman Mohd Azizi jamil Farinaa Fundamental and Applied Sciences Department Universiti Teknologi PETRONAS Tronoh 31750 Malaysia Chemical Engineering Department Universiti Teknologi PETRONAS Bandar Seri Iskandar Tronoh 31750 Malaysia Advanced Materials Research Centre （AMREC） SIRIM Berhad Lot 34 Jalan Hi-Tech 2/3 Kulim Hi-Tech Park Kulim 09000Malaysia

MoVnbTe catalyst has been found to be the most active and selective catalyst in the ammoxidation of propane to ACn, the selective oxidation of propane to acrylic acid and in the oxidative dehydrogenation of ethane to ethylene. However, in our previous work, when 0.5 mL of MoVnbTe catalyst prepared using slurry method was tested in the propane ammoxidation to ACn, it only shows 1% conversion of propane with about 55% selectivity to CAn, thus giving only 0.6% yields to ACn. The poor catalyst activity is attributed to insufficient formation of crystalline phases essential for the propane activation process. In an attempt to improve the physicochemical properties of this catalyst, several preparation methods have been used, namely hydrothermal, reflux, changing the solvent and changing the calcinations temperature. The modified catalysts have been characterized using X-Ray Diffraction （XRD） and n2 physisorption （BET）. The MoVnbTe catalyst prepared by hydrothermal method shows a remarkable improvement in the formation of crystalline phases.

关键词： MoVnbTe catalyst propane ammoxidation acrylonitrile hydrothermal method crystalline phase.