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Biological silicon nanoparticles improve Phaseolus vulgaris L. yield and minimize its contaminant contents on a heavy metals-contaminated saline soil

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Journal of Environmental Sciences 2021年第8期33卷 1-14页

作者： mohamed T.El-saadony El-Sayed m.Desoky Ahmed m.saad Rania S.m.Eid eman Selem Ahmed S.Elrys Department of Agricultural microbiology Faculty of AgricultureZagazig UniversityZagazig 44511Egypt Botany Department Faculty of AgricultureZagazig UniversityZagazig 44511Egypt Biochemistry Department Faculty of AgricultureZagazig UniversityZagazig 44511Egypt Agricultural Botany Department Faculty of AgricultureBenha University13736Egypt Botany and microbiology Department Faculty of ScienceZagazig University44511Egypt Soil Science Department Faculty of AgricultureZagazig University44511ZagazigEgypt

The synthesis of biological silicon nano-particles(Bio-Si-NPs)is an eco-friendly and lowcost *** is no study focusing on the effect of Bio-Si-NPs on the plants grown on saline soil contaminated with heavy *** this study,an attempt was made to synthesis Bio-Si-NPs using potassium silica florid substrate,and the identified Aspergillus tubingensis Am11 isolate that separated from distribution systems of the potable water.A twoyear field trial was conducted to compare the protective effects of Bio-Si-NPs(2.5 and 5.0 mmol/L)and potassium silicate(10 mmol/L)as a foliar spray on the antioxidant defense system,physio-biochemical components,and the contaminants contents of Phaseolus vulgaris *** on saline soil contaminated with heavy *** findings showed that all treatments of Bio-Si-NPs and potassium silicate significantly improved plant growth and production,chlorophylls,carotenoids,transpiration rate,net photosynthetic rate,stomatal conductance,membrane stability index,relative water content,free proline,total soluble sugars,N,P,K,Ca2+,K+/Na+,and the activities of peroxidase,catalase,ascorbic peroxidase and superoxide oxide *** of Bio-Si-NPs and potassium silicate significantly decreased electrolyte leakage,malondialdehyde,H2 O2,O2·-,Na+,Pb,Cd,and Ni in leaves and pods of Phaseolus vulgaris *** to ***-Si-NPs were more effective compared to potassium *** of Bio-Si-NPs at the rate of 5 mmol/L was the recommended treatment to enhance the performance and reduce heavy metals content on plants grown on contaminated saline soils.

关键词： Bean Silicon Nano-silicon Aspergillus tubingensis Am11 Salinity Heavy metals

On a new modified fractional analysis of Nagumo equation

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International Journal of Biomathematics 2019年第3期12卷 191-205页

作者： Khaled m.saad Sinan Deniz Dumitru Baleanu Department of mathematics College of Science and Arts Najran University P.O. Box 1988 Najran Saudi Arabia Department of Mathematics Faculty of Applied Science Taiz University P.O. Box 6169 Taiz Yemen Department of mathematics Faculty of Art and Sciences Manisa Celal Bayar University 45140 Manisa Turkey Department of mathematics Faculty of Sciences Cankaya University 06530 Ankara Turkey Institute of Space Sciences Magurele-Bucharest Romania

In this work, a new modified fractional form of the Nagumo equation has been presented and deeply analyzed. Using the Caputo–Fabrizio and Atangana–Baleanu time-fractional derivatives, classical Nagumo model is transformed to a new fractional version. The modified equation has been solved by using the homotopy analysis transform method. The convergence analysis has been also examined with the help of the so-called hh-curves and average residual error. Comparing the obtained approximate solution with the exact solution leaves no doubt believing that the proposed technique is very efficient and converges toward the exact solution very rapidly.

关键词： Nagumo equation nonlinear diffusion and convection homotopy analysis transform method Caputo-Fabrizio-Caputo derivative Atangana-Baleanu-Caputo time-fractional derivatives

Comparative assessment of maximum power point tracking procedures for photovoltaic systems

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Green Energy & Environment 2017年第1期2卷 5-17页

作者： mohammed Aslam Husain Abu Tariq Salman Hameed m.saad Bin Arif Abhinandan Jain Department of Electrical Engineering Aligarh Muslim University Department of Electronics Engineering Aligarh Muslim University

The fast growing demands and increasing awareness for the environment, PV systems are being rapidly installed for numerous ***, one of the important challenges in utilizing a PV source is the maximum power harnessing using various maximum power point tracking techniques available. With the large number of mPPT techniques, each having some merits and demerits, confusion is always there for their proper selection. Discussion on various proposed procedures for maximum power point tracking of photovoltaic array has been done. Based on different parameters analysis of mPPT techniques is carried out. This assessment will serve as a suitable reference for selection, understanding different ways and means of mPPT.

关键词： maximum power point tracking(mPPT) Photovoltaic(PV) Solar Perturb and observe Optimization

Oral administration of moringa oleifera leaf powder relieves oxidative stress,modulates mucosal immune response and cecal microbiota after exposure to heat stress in New Zealand White rabbits

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Journal of Animal Science and Biotechnology 2021年第4期12卷 1468-1482页

作者： Talat Bilal Yasoob Defu Yu Abdur Rauf Khalid Zhen Zhang Xiaofeng Zhu Heba m.saad Suqin Hang National Center for International Research on Animal Gut Nutrition Nanjing Agricultural UniversityNo.1 WeiGangXuanwu regionNanjing 210095JiangsuChina Laboratory of Gastrointestinal microbiology College of Animal Science and TechnologyNanjing Agricultural UniversityNanjing 210095China Faculty of Agricultural Sciences Ghazi UniversityDera Ghazi Khan 32200Pakistan Department of Livestock and Poultry Production Faculty of Veterinary SciencesBahauddin Zakariya UniversityMultan 60000Pakistan

Background:Heat stress(HS)disrupts the gut barrier allowing the uptake of lipopolysaccharide(LPS)and leads to an inflammatory response and changes in gut microbiota *** oleifera leaf powder(mOLP)has been proposed to combat HS,yet its alleviate role is currently under *** current study investigated the effects of chronic HS and mOLP supplementation on changes in redox status and immune response of cecal mucosa along with alteration in cecal ***:A total of 21 young New Zealand White(NZW)rabbits(male)about 32 weeks old(mean body weight of 3318±171 g)reared on a commercial pelleted diet were employed;divided into three groups(n=7):control(CON,25°C),heat stress(HS,35°C for 7 h daily),and HS supplemented orally with mOLP(HSm,35°C)at 200 mg/kg body weight per day for 4 ***:The results demonstrated that mOLP supplementation increased organ index of cecal tissue compared with the HS group(P>0.05).Levels of malonaldehyde(mDA)and activity of superoxide dismutase(SOD)as well as lactate dehydrogenase(LDH)were reduced in the cecal mucosa of the HSm group compared with the HS *** downregulated the contents of cecal mucosa LPS,several inflammatory markers(TNF-α/IL-1α/IL-1β),and myeloperoxidase(mPO)in the HSm group(Pmmunoglobulin A(SIgA)was increased in the HSm group compared with the HS group(Pme of cecal mucosa showed that mOLP reduced gene expression relative to several immune factors,including IL-10,IFNG,and RLA,whereas both HS and mOLP increased the gene expression of fat digestion and absorption pathway,including APOA1,FABP1,FABP2,mTTP,andLOC100344166,compared to the CON group(Pm level,the relative abundance of Proteobacteria was increased by HS,while Actinobacteria was significantly increased by HSm compared to other groups(Pm groups compared to CON and HS groups(P<0.05).Higher butyrate conce

关键词： Cecal microbiota Heat stress moringa oleifera leaf powder Rabbits Short chain fatty acids

Complement-dependent neuroinflammation in spinal cord injury:from pathology to therapeutic implications

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Neural Regeneration Research 2025年第5期20卷 1324-1335页

作者： Hassan saad Bachar El Baba Ali Tfaily Firas Kobeissy Juanmarco Gutierrez Gonzalez Daniel Refai Gerald R.Rodts Christian mustroph David Gimbel Jonathan Grossberg Daniel L.Barrow matthew F.Gary Ali m.Alawieh Department of Neurosurgery Emory University School of MedicineAtlantaGAUSA Department of Neurology Yale UniversityNew HavenCTUSA Center for Neurotrauma Multiomics&Biomarkers(CNMB)Morehouse School of MedicineAtlantaGAUSA

Spinal cord injury remains a major cause of disability in young adults,and beyond acute decompression and rehabilitation,there are no pharmacological treatments to limit the progression of injury and optimize recovery in this *** the thorough investigation of the complement system in triggering and propagating cerebral neuroinflammation,a similar role for complement in spinal neuroinflammation is a focus of ongoing *** this work,we survey the current literature investigating the role of complement in spinal cord injury including the sources of complement proteins,triggers of complement activation,and role of effector functions in the *** study relevant data demonstrating the different triggers of complement activation after spinal cord injury including direct binding to cellular debris,and or activation via antibody binding to damage-associated molecular *** effector functions of complement have been implicated in spinal cord injury,and we critically evaluate recent studies on the dual role of complement anaphylatoxins in spinal cord injury while emphasizing the lack of pathophysiological understanding of the role of opsonins in spinal cord *** this pathophysiological review,we systematically review the different translational approaches used in preclinical models of spinal cord injury and discuss the challenges for future translation into human *** review emphasizes the need for future studies to dissect the roles of different complement pathways in the pathology of spinal cord injury,to evaluate the phases of involvement of opsonins and anaphylatoxins,and to study the role of complement in white matter degeneration and regeneration using translational strategies to supplement genetic models.

关键词： complement neuroinflammation neuroplasticity regeneration spinal cord injury targeted therapy

mesenchymal stem cells are more effective than captopril in reverting cisplatin-induced nephropathy

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BIOCELL 2019年第2期43卷 73-79页

作者： ENTSAR A.saad REDA S.EL-DEmERDASH eman m.ABD EI-FATTAH Chemistry Department Faculty of ScienceDamietta UniversityDamiettaEgypt Urology&Nephrology Center Faculty of MedicineMansoura UniversityEgypt

Cisplatin is a powerful anticancer drug but its nephrotoxic effects limit its clinical *** aimed to evaluate the effect of mesenchymal stem cells(mSCs)injection or of captopril to counteract the cisplatin-induction of *** isolation,preparation and tracking,transforming growth factor-β(TGF-β)and interleukin-10(IL-10)expressions,kidney function tests,oxidative stress state,and histological examinations were ***-induced nephropathy was indicated biochemically and confirmed *** treatment showed normal kidney architecture and significantly decreased oxidative stress and TGF-β while increased IL-10 and improved kidney function *** treated with cisplatin+captopril showed noticeable kidney histopathological *** positive impact of mSCs in amelioration of cisplatin-induced nephropathy via their ability to motivate functional and structural renal repair is evidenced.

关键词： Histopathology IL-10 minerals Nephropathy Oxidative stress PCR Repair TGF-β

Colorless WDm-PON Using Single Side Band Carrier Suppressed Signals mitigating Carrier Rayleigh Backscattering

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China Communications 2016年第12期13卷 150-161页

作者： Rahat Ullah Bo Liu Qi Zhang Yousaf Khan Amjad Ali Qinghua Tian Feng Tian m.saad Khan Tabinda Salam Sibghat Ullah Lijia Zhang Xiangjun Xin State Key Laboratory of Information Photonics and Optical Communications Beijing University of Posts and TelecommunicationsNo.10 Xitucheng Road Beijing China 100876 School of Electronic Engineering Beijing University of Posts and Telecommunications No. 10 Xitucheng Road Beijing China 100876 Electrical Engineering Department Iqra University Peshawar Pakistan. Sarhad University Peshawar Pakistan 25000 School of Information and Communication Beijing University of Posts and TelecommunicationsNo. 10 Xitucheng Road Beijing China 100876

A new scheme is offered for minimizing carrier Rayleigh backscattering(CRB) in single feeder fiber based wavelength division multiplexed passive optical network(WDm-PON). The proposed scheme is based on single side band carrier suppressed(SSBCS) signal, both at network and receiver sides, used for the first time at optical line terminal(OLT) and optical network unit(ONU) sides. We use dual-drive mach-zehnder modulator(DD-mZm) for generating SSB-CS signals, which decreases the expense per bit in full transmission. SSB-CS mitigates CRB, both at OLT and ONU sides, because of having no chance of reflections from the carrier. Since no extra dedicated RF or laser source is used at ONU side, we thus achieve cost effective colorless WDm-PON system. Suppressed signals from four channels, each of 10 Gbps, are multiplexed before injecting into the fiber span of 25 km at OLT. At ONU side, half of the downlink power is used for re-modulating the data signal. The simulation results show an errorfree transmission. moreover, the detailed power budget calculations show that the proposed scheme can be sought out for splitting ratio up to 128. Hence it offers enough system's margin for unseen losses.

关键词： Carrier Rayleigh backscattering dual drive mach-zehnder modulator single side band suppress carrier on-off keying

Antioxidant and lipoxygenase inhibitory properties of a novel flavonoid from Pistacia chinensis Bunge and its molecular docking analysis

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Traditional medicine Research 2025年第2期10卷 30-36页

作者： Abdur Rauf Zuneera Akram Naveed muhammad Najla Almasoud Taghrid saad Alomar Saima Naz Abdul Wadood Chandni Hayat marcello Iriti Department of Chemistry University of SwabiAmbar 23561Pakistan Department of Pharmacology Faculty of Pharmaceutical SciencesBaqai Medical UniversityKarachi 74600Pakistan Department of Pharmacy Abdul Wali Khan University MardanMardan 23200Pakistan Department of Chemistry College of SciencePrincess Nourah bint Abdulrahman UniversityRiyadh 11671Saudi Arabia Department of Biotechnology BKUC-Bacha Khan University CharsaddaCharsadda 24620Pakistan Department of Biochemistry Abdul Wali Khan University MardanMardan 23200Pakistan Department of Biomedical Surgical and Dental SciencesUniversity of MilanMilan 20129Italy National Interuniversity Consortium of materials Science and Technology(INSTm) Firenze 50121Italy

Background:Pistacia chinensis Bunge has been traditionally used to manage various conditions,including asthma,pain,inflammation,hepatoprotection,and *** study was conducted to investigate the antioxidant and anti-lipoxygenase(LOX)properties of the isolated compound 2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-4H-chromen-4-one from Pistacia ***:LOX assay and antioxidant activity using 2,2-diphenyl-1-picrylhydrazyl(DPPH)assay were *** docking studies were conducted using a molecular operating ***:The LOX assay revealed significant inhibitory effects at 0.2µm concentration,with an IC50 value of 37.80µ*** antioxidant effect demonstrated dose-dependency across 5 to 100µg/mL concentrations,reaching 93.09%at 100µg/mL,comparable to ascorbic acid’s 95.43%*** docking studies highlighted strong interactions with the lipoxygenase enzyme,presenting an excellent docking score of-10.98 kcal/***:These findings provide valuable insights into Pistacia chinensis’chemical components and biological effects,reinforcing its traditional medicinal applications.

关键词： Pistacia chinensis Bunge antioxidant DPPH assay antilipoxygenase docking analysis

Patterns of reproduction in two sympatric gerbil species in arid Egypt

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Integrative Zoology 2009年第2期4卷 248-253页

作者： Sohail SOLImAN eman m.mOHALLAL Department of Zoology Faculty of ScienceAin Shams UniversityAbbasiyaCairoEgypt Desert Research Centre MatariyaCairoEgypt

Despite a significant number of studies on the reproductive characteristics of small mammals,very little of this work has been conducted on species in ***,the Egyptian greater gerbil(Gerbillus pyramidum Saint-Hilaire,1825)and Anderson’s lesser Egyptian gerbil(Gerbillus andersoni De Winton,1902)in northeastern Egypt were *** behavior in these species was synchronized with rainfall in the winter and spring *** however,the removal of individual gerbils throughout the course of study resulted in an extension of reproductive activity into the dry summer and autumn months in the latter part of the *** results are discussed in the context of density-dependent reproductive behavior in small mammals.

关键词： compensation density dependent Egypt Gerbillus reproduction Sinai.