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World Journal of Neurology 2012年第1期2卷 1-10页

作者： Sherifa ahmad Hamed Nabil abdel-Hakim Metwaly Mahmoud mohamad Hassan Khalid ahmad Mohamed mohamad abdel-rahman ahmad ahmad abdel-Magid Soliman abdel-rahman Mohamed Elsaied Department of Neurology and Psychiatry Assiut University HospitalAssiut 12111Egypt Department of Neurology and Psychiatry Al-Azhar University HospitalAssiut 12111Egypt Department of Clinical Pathology South Valley University Hospital83523 QenaEgypt

AIM:To characterize the relationship between depression and epilepsy-related seizures,treatment,hormonal and biological ***:Included were 200 Egyptian adults(male=100,female=100)with epilepsy(mean age:30.87±7.88 years;duration of illness:13.89±7.64 years)and 100 healthy matched subjects for *** interview,Beck Depression Inventory(BDIII)and Hamilton Anxiety Rating Scale(HAM-A)were used to assess depression and *** levels of free testosterone,sex hormone binding globulin,prolactin,free thyroxin and thyroid stimulating hormone,serotonin,noradrenaline and adrenaline neurotransmitters were measured to assess endocrine and biological ***:Patients had higher rates of depressive disorder(25.5%or 51/200),mostly intermixed with anxiety(47.06%),psychotic features(19.61%),aggression(40%)and suicide(55%).Compared to controls,higher scores on the BDI-II were observed with right-sided epileptic foci(P=0.011),polytherapy(P=0.001)and lack of control on antiepileptic drugs(AEDs)(P=0.0001).Patients had lower levels of serotonin(P=0.001)[marked with depression(P=0.012)]and adrenaline(P=0.0001),while noradrenaline was lower with temporal lobe epilepsy(P=0.039),left-sided foci(P=0.047)and lack of control on AEDs(P=0.017).Negative correlations were observed between levels of serotonin and BDI-II(P=0.048)and HAM-A(P=0.009)scores,but not with AEDs dose or drug ***:Comorbid depressive disorder with epilepsy appears to be closely related to seizure type,focus,side,intractability to medications and neurotransmitter ***,optimizing seizure control and early recognition and management of depression is necessary to improve patients’quality of life.

关键词： Adrenaline Antiepileptic drugs Depression Epilepsy Noradrenaline Serotonin

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Emerging insights into the function of very long chain fatty acids at cerebellar synapses

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Neural Regeneration Research 2025年第6期20卷 1709-1710页

作者： Martin-Paul Agbaga Mohiuddin ahmad Department of Cell Biology and Ophthalmology University of Oklahoma Health Sciences Centerand Dean McGee Eye InstituteOklahoma CityOKUSA

Very long chain-saturated and-polyunsaturated fatty acids(VLC-SFA and VLC-PUFA, respectively) are a functionally important class of fatty acids containing 28 carbons or more in their acyl chain. They are synthesized by the elongation of very long fatty acids-4(ELOVL4) enzyme, expressed mainly in the brain, retina, skin, testes, and meibomian gland, where these fatty acids are found(Agbaga et al., 2008). Further, these organs exhibit tissuespecific VLC-PUFA and VLC-SFA biosynthesis and incorporation into complex lipids for specific functions. In the brain, skin, and Meibomian glands, the ELOVL4 mainly makes VLC-SFA, which are incorporated into complex sphingolipids. In the retina, the ELOVL4 makes VLC-PUFA that are incorporated into phosphatidylcholine, that are critical for visual function, while in testes and sperm, the VLC-PUFA are incorporated into sphingolipids that are critical for fertility(Yeboah et al., 2021).

关键词： functions function insight

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Electrical and dielectric properties of Na_(1/2)La_(1/2)Cu_3Ti_4O_(12) ceramics prepared by high energy ball-milling and conventional sintering

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Chinese Physics B 2016年第12期25卷 474-480页

作者： H Mahfoz Kotb mohamad M ahmad Department of Physics College of ScienceKing Faisal University Department of Physics Faculty of ScienceAssiut University

We report on the measurements of the electrical and dielectric properties of Na1/2La1/2Cu3Ti4O12 （NLCTO） ce- ramics prepared by high energy ball-milling and conventional sintering without any calcination steps. The x-ray powder diffraction analysis shows that pure perovskite-like CCTO phase is obtained after sintering at 1025 ℃-1075 ℃. Higher sintering temperatures result in multi-phase ceramics due to thermal decomposition. Scanning electron microscope observations reveal that the grain size is in a range of - 3 μm-5 μm for these ceramics. Impedance spectroscopy measurements performed in a wide frequency range （1 Hz-10 MHz） and at various temperatures （120 K-470 K） are used to study the dielectric and electrical properties of NLCTO ceramics. A good compromise between high ε′ （5.7 ×10^3 and 4.1 × 10^3 at 1.1 kHz and 96 kHz, respectively） and low tan δ （0.161 and 0.126 at 1.1 kHz and 96 kHz, respectively） is obtained for the ceramic sintered at 1050 ℃. The observed high dielectric constant behavior is explained in terms of the internal barrier layer capacitance effect.

关键词： ceramics sintering dielectric loss and relaxation electrical

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Fuzzy modelling of combustion efficiency and control of excess air flow case study: 320-MW steam unit/ Isfahan Power Plant/Iran

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Clean Energy 2021年第2期5卷 229-242页

作者： ahmad Kermani Seyed mohamad Kargar Department of Electrical Engineering Najafabad BranchIslamic Azad UniversityNajafabadIran Smart Microgrid Research Center Najafabad BranchIslamic Azad UniversityNajafabadIran

One of the most critical factors affecting boiler efficiency and hazardous-gas-emission reduction is the volume of excess air mixed with fuel.A knowledge-based approach is proposed to model the efficiency of a 320-MW natural-gas-fired steam power plant in Isfahan,Iran by applying fuzzy-modelling techniques to control the boiler *** model is based on fuel and air entering the ***,the fuzzy-model structure is identified by applying the fuzzy rules obtained from an experienced human *** proposed method is then optimized using a genetic algorithm to increase the fuzzy-model *** results indicate that,by applying a genetic algorithm,the precision of the proposed fuzzy model *** error between the actual efficiency of the plant and the output efficiency of the proposed model is *** model is developed by applying the fuzzy rules and modelling-related ***,to optimize the efficiency of the boiler,a fuzzy proportional-integral controller is *** closed-loop control simulations are run by applying both the proposed controller and the manual controller to demonstrate the influence of the suggested *** simulation outcomes indicate that the recommended controller adjusts the excess-air percentage correctly and increases the unit efficiency by 0.70%,significantly reducing fuel consumption.

关键词： boiler modelling excess air fuzzy control genetic algorithm proportional-integral fuzzy controller

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A Review and Bibliometric Analysis of the Current Studies for the 6G Networks

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Computer Modeling in Engineering & Sciences 2024年第9期140卷 2165-2206页

作者： Qusay M.Salih Md.Arafatur rahman ahmad Firdaus Mohammed Rajih Jassim Hasan Kahtan Jasni mohamad Zain Ahmed Hussein Ali Faculty of Computing Universiti Malaysia Pahang Al-Sultan Abdullah(UMPSA)PekanPahang26600Malaysia Department of Medical Equipment Technology Engineering Al Salam University CollegeBaghdadIraq School of Mathematics and Computer Science University of WolverhamptonWolverhampton01902UK Department of Production Engineering and Metallurgy University of TechnologyBaghdadIraq Cardiff School of Technologies Cardiff Metropolitan UniversityCardiffCF52YBUK Institute for Big Data Analytics and Artificial Intelligence(IBDAAI) Kompleks Al-KhawarizmiUniversiti Teknologi MARAShah AlamSelangor40450Malaysia Department Computer Science Al-Salam University CollegeBaghdadIraq

The race to develop the next generation of wireless networks,known as Sixth Generation(6G)wireless,which will be operational in 2030,has already *** realize its full potential over the next decade,6G will undoubtedly necessitate additional improvements that integrate existing solutions with cutting-edge ***,the studies about 6G are mainly limited and scattered,whereas no bibliometric study covers the 6G ***,this study aims to review,examine,and summarize existing studies and research activities in *** study has examined the Scopus database through a bibliometric analysis of more than 1,000 papers published between 2017 and ***,we applied the bibliometric analysis methods by including(1)document type,(2)subject area,(3)author,and(4)country of *** study’s results reflect the research 6G community’s trends,highlight important research challenges,and elucidate potential directions for future research in this interesting area.

关键词： 6G bibliometric wireless networks review

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Simple glycolipids of microbes:Chemistry,biological activity and metabolic engineering

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Synthetic and Systems Biotechnology 2018年第1期3卷 3-19页

作者： ahmad Mohammad abdel-Mawgoud Gregory Stephanopoulos Department of Chemical Engineering Massachusetts Institute of Technology77 Massachusetts Ave.CambridgeMA 02139USA

Glycosylated lipids(GLs)are added-value lipid derivatives of great *** their interesting surface activities that qualify many of them to act as excellent ecological detergents,they have diverse biological activities with promising biomedical and cosmeceutical ***,especially those of microbial origin,have interesting antimicrobial,anticancer,antiparasitic as well as immunomodulatory ***,GLs are hardly accessing the market because of their high cost of *** believe that experience of metabolic engineering(ME)of microbial lipids for biofuel production can now be harnessed towards a successful synthesis of microbial GLs for biomedical and other *** review presents chemical groups of bacterial and fungal GLs,their biological activities,their general biosynthetic pathways and an insight on ME strategies for their production.

关键词： Biosurfactant Glycolipids biosynthesis Glycosyl/acyl transferases Glycosides Physiological roles Lipid biotechnology

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Photodetachment of H^(-) near a Hard Spherical Surface

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Chinese Physics Letters 2012年第1期29卷 90-93页

作者： M.Haneef Iftikhar ahmad A.Afaq A.rahman Department of Physics Hazara UniversityMansehraPakistan Department of Physics University of MalakandChakdaraPakistan Centre of Excellence in Solid State Physics University of the PunjabQuid-e-Azam CampusLahore-54590Pakistan

The photodetachment of a hydrogen negative ion (H^(-)) near a hard spherical surface is investigated by using the theoretical imaging *** surface is oriented in such a fashion that the laser polarization direction is perpendicular to the principal axis of the spherical *** expressions are derived for the detachedelectron flux and photodetachment cross *** interference patterns are observed in the detachedelectron flux,while no visible oscillations are found in the photodetachment cross section.

关键词： visible polarization Strong

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Interferences in Photodetached Electron Spectra from a Linear Tetra-Atomic Negative Ion

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Chinese Physics Letters 2011年第6期28卷 102-105页

作者： A.rahman Iftikhar ahmad A.Afaq M.Haneef Department of Physics Hazara UniversityMansehraPakistan Centre of Excellence in Solid State Physics University of the PunjabQuid-e-Azam CampusLahore-54590Pakistan

Photo-detached electron spectra from a hypothetical linear tetra-atomic negative ion is obtained.A plane polarized laser parallel to the axis of the molecular ion is used to knock off the loosely bound *** spectrum of the detached-electron flux shows strong interference peaks,while the number of peaks increases with the increase in the photon *** oscillations are also observed in the total photodetachment cross section *** frequency of the oscillations increases with the increase in the distance between the successive atoms d in the linear *** quantum interference effects vanish for very large d or very high photon energy.

关键词： spectrum energy successive

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Insecticide susceptibility status and resistance mechanism of Anopheles cracens Sallum and Peyton and Anopheles maculatus Theobald(Family: Culicidae) from knowlesi malaria endemic areas in Peninsular Malaysia

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Asian Pacific Journal of Tropical Medicine 2019年第2期12卷 79-86页

作者： ahmad Rohani Abdul rahman Aidil Azahary Ke-Xin Yu Mohamed Nor Zurainee Wan mohamad Ali Wan Najdah Han Lim Lee Medical Entomology Unit Institute for Medical Research(Malaysia) Department of Parasitology University of Malaya Faculty of Health and Life Sciences Management and Science University(Malaysia)

Objective: To assess the insecticide susceptibility status of Anopheles cracens(***) and Anopheles maculatus(***) from knowlesi malaria endemic areas in Peninsular Malaysia towards DDT, malathion and deltamethrin and to determine the resistance mechanism ***: Adult and larval mosquitos were collected for *** status of Anopheles was determined using the standard WHO adult bioassay, larval bioassay and biochemical enzyme ***: WHO adult bioassay results indicated *** collected from Kampung Sungai Ular, Pahang was resistant towards 4% DDT, while *** collected from Kampung Sokor, Kelantan and Kampung Sungai Lui, Selangor exhibited resistance towards 4% ***, the enzyme activity profiles varied according to strains and *** resistance ratio of larval bioassay, showed that all strains and species tested were susceptible to malathion and ***: Since only a few anopheline strains exhibited low level of insecticide resistance towards malathion, DDT and *** insecticides are still considered effective for vector control program towards *** and ***.

关键词： Insecticide susceptibility Vector control WHO adult bioassay Biochemical enzyme assay

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Vegetation-environment relationship in Pinus wallichiana forests of the Swat Hindukush range of Pakistan

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Journal of Forestry Research 2020年第1期31卷 185-195页

作者： Inayat Ur rahman Nasrullah Khan Kishwar Ali Siraj ahmad Laboratory of Plant Ecology and Dendrochronology Department of BotanyUniversity of Malakand

Understanding the influence of environmental variables on the spatial distribution of ecological communities is essential to predict the response of vegetation to various environmental *** theory suggests that multiple environmental factors shape local species assemblages and should influence the various components of community structure and composition in different *** study aimed to classify Pinus wallichiana dominated forests in the Swat Hindukush range mountains to understand the relative influence of multiple environmental filters on its composition and *** forests represent the most typical of the species distribution in northern Pakistan and were not subjected to any phytosociological *** this purpose,thirty forest stands,spanning a wide range of physical habitats were sampled using 10 x 10 m plots and the importance value index was *** floristic and environmental data were subjected to Ward’s agglomerative cluster analysis for objective classification and ordinated with NMS ordination for pattern description and testing the vegetation-environmental *** floristically and ecologically distinct communities were recognized along the topographic gradient(elevation,r=0.377;slope,r=0.5548) coupled with soil physical(clay,r=0.2782;silt,r=0.3225) and chemical properties(pH,r=0.4975;lime,r=3982).An elevation gradient of 100 m separated the low(Pinus wallichiana-Quercus dilatata community)and middle elevations forest stands(*** pure population) from the highland population type(Pinus wallichiana-Cedrus deodara community).The floristics and structure of these forest types respond directly or indirectly to topographic and soil variables which were evidenced from the floristic composition,species richness,and community *** characteristics of the communities changed from heterogenous,dense stands to sparsely dispersed conifers,broadleaved-evergreen,and deciduous vegetation types along

关键词： Blue pine forests Classification-ordination Ecological gradient Hindukush range mountains Species composition

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