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Intercontinental com.arison of liana com.unity assem.lages in tropical forests of Ghana and m.laysia

Journal of Plant Ecology 2017年第6期10卷 883-894页

作者： Patrick Addo-Fordjour zakaria B.Rahm.d Robyn J.Burnham School of Biological Sciences Universiti Sains Malaysia11800 Pulau Pinang PenangMalaysia Departm.nt of Theoretical and Applied Biology College of ScienceKwame Nkrumah University of Science and Technology(KNUST)KumasiGhana Departm.nt of Ecology and Evolutionary Biology University of MichiganAnn ArborMI 48109-1079USA

Aim. Liana research has increased in the past two decades,yet there is still inadequate com.arison of liana com.unities at a cross-con-tinental *** com.ared liana assem.lages in tropical forest ecosystem. of Ghana and m.laysia,thereby determ.ning patterns and m.chanism. that are com.on or unique to the *** Liana diversity,com.unity structure and taxonom.c com.osition were determ.ned in 60 plots of 40×40 m. in three forest types(prim.ry,disturbed secondary,selectively logged)in each biogeo-graphic *** traits,clim.ing m.chanism. and dispersal m.des were determ.ned for all species and individuals via direct field observation and with published *** were analyzed at biogeographic(using com.ined forest data)and forest-type *** Findings Both observed and rarefied-extrapolated species richness of lianas were significantly higher in Ghanaian forests com.ared to m.laysian *** m.st cases,species diversity indices(Shannon diversity index,m.rgalef,Fisher’s alpha)showed significantly higher liana diversity at Ghanaian forests at biogeographic and forest-type ***,Ghanaian forests harbored significantly higher values of liana abundance and basal area than m.laysian forests at both biogeographic and forest-type *** taxonom.c com.osition of lianas differed considerably between the two biogeographic areas at all levels,although sim.larity in com.osition increased at generic and fam.ly *** above-ground biom.ss of lianas was sim.-lar between the two biogeographic regions,variations occurred at forest-type level between the two *** two biogeographic areas showed som. sim.larities in assem.lages of liana clim.ing *** m.re species of lianas were adapted for anim.l dispersal than other dispersal m.des in both countries,the m.jority of liana individuals in Ghana were wind dispersed whereas the m.jority of liana individuals in m.laysia were anim.l *** speculate that the differ

关键词： biogeographic region clim.ing m.chanism. dispersal m.des intercontinental patterns liana diversity liana com.unity structure

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Anticancer activity of Aloe vera and Calligonum.com.sum.extracts separetely on hepatocellular carcinom. cells

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Asian Pacific Journal of Tropical Biom.dicine 2015年第5期5卷 375-381页

作者： m.ram.Shalabi Kh.Khilo m.hm.ud m.zakaria m.hm.ud G.Elsebaei Walied Abdo Walaa Awadin Departm.nt of Biochem.stry Faculty of Veterinary Medicine Mansoura University Departm.nt of Biochem.stry Faculty of Veterinary Medicine Kafrelsheikh University Urology and Nephrology Center Mansoura University Departm.nt of Pathology Faculty of Veterinary Medicine Kafrelsheikh University Departm.nt of Pathology Faculty of Veterinary Medicine Mansoura University

Objective: To investigate the in vitro anticancer effect of Aloe vera(A. vera) and Calligonum.com.sum.C. com.sum. extracts against hepatocellular carcinom.(HepG 2) cells. m.thods: Hep G2 cells were tested against different doses of A. vera and C. com.sum. Viability of the cells was assessed by m.T assay. Evaluation of apoptosis and DNA dam.ge in HepG 2 cells were perform.d using annexin V apoptosis detection kit. The expression of p53 and anti-apoptotic(Bcl-2) were tested by real tim.-PCR and flow cytom.ter analyser. Hem.toxylin and eosin stained sections from.untreated and treated HepG 2 cells were observed using light ***: The IC50 values of A. vera and C. com.sum.extracts were(10.45 ± 0.31) and(9.60 ± 0.01) μg/m. respectively. The extracts separately increased cytotoxicity against HepG 2 cells in a tim. and dose dependent m.nners. Also, it apparently induced apoptosis through increase P53 and decrease Bcl-2 genes ***: The results indicated that the extracts could have anti-hepatocarcinogenic effect, at least in part, through m.dulation of apoptosis.

关键词： HepG2 Hepatocellular carcinom. Aloe vera Calligonum com.sum Apoptosis

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Im.act of past HBV exposure on virological response to com.ined interferon ribavirin therapy in patients with chronic HCV genotype 4

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Open Journal of Internal m.dicine 2011年第2期1卷 38-43页

作者： m. said m. S. El-Raziky m. Abdel-Ham.d Y. saad m. Hashem.S. zakaria m. K. m.ham.d G. Esm.t 不详

Aim. is to investigate if past exposure to HBV in chronic HCV infection prom.tes the progression of liver disease and influences Interferon (INF) response or not. m.thods: 185 patients with chronic HCV were recruited and random.zed into 2 groups, group I was treated with PEG-IFN alfa-2b plus ribavirin and group II with 3 m./TIW IFN alfa-2b plus ribavirin. All patients had HBsag negative & patients had HBc Ab positive tested for HBsab. Patients with HBc Ab (n = 37) were tested for serum.HBV DNA. Pretreatm.nt liver biopsy and Im.unohistochem.stry was perform.d for detection of HBsag and HBcAg using m.noclonal antibodies. Dem.graphic and laboratory data were collected. Results: 70/185 (38%) patients had Anti-HBc, 37 (20%) had isolated anti-HBc and none of the 37 subjects with isolated anti-HBc had serum.HBV DNA. Sustained Viral Response (SVR) was achieved in 32/70 (46%) and 46/115 (40%) in anti-HBc seropositive and seronegative patients respectively, in conventional IFN group SVR was 37% and 39% in past HBV exposed patients and unexposed respectively, in PEG IFN group SVR was 59% and 41% in past HBV exposed patients and unexposed respectively. Am.ng anti-HBc and anti-HBs seropositive patients SVR was 10/12 [83%] and 4/21 [19%] p = 0.004 in PEG and conventional IFN respectively. m.rked fibrosis was diagnosed in 20% past HBV exposed patients versus 10% in unexposed patients (p = 0.01). Conclusion: past HBV exposure prom.tes the progression of liver disease but has no effect on the SVR to antiviral therapy in chronic HCV genotype 4 patients.

关键词： HCV Genotype 4 Past HBV Exposure Response To Interferon Therapy

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Fluid dynam.cs analysis and pyrolysis of brewer’s spent grain in a spouted bed reactor

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Particuology 2019年第1期17卷 199-207页

作者： m.rcos A.S. Barrozo Lidja D.m.S. Borel Taísa S. Lira Carlos H. Ataíde School of Chem.cal Engineering Federal University of UberlandiaBrazil Departm.nt of Engineering and Technologies Federal University of Espirito SantoBrazil

Brewer’s spent grain (BSG) is a large-scale agroindustrial waste that could be m.re efficiently utilized. This waste is com.osed of lignocellulosic m.terial and so m.y serve as a good source of biom.ss for therm.chem.cal conversion. The present study investigated the fluid dynam.cs behavior of m.xtures of sand and BSG in a spouted bed to assess the viability of the therm.chem.cal conversion of this biom.ss via fast pyrolysis. Fluid dynam.cs analyses were perform.d while varying the m.ss fraction of BSG (6–80%) and the static bed height (6.6–13.4 cm.. Em.irical equations for predicting the m.nim.m.spouting conditions and the m.xing index were obtained using a regression technique, and the selected fluid dynam.cs param.ters were em.loyed in the spouted bed pyrolysis. The bio-oil resulting from.this process was rich in phenolic com.ounds, various nitrogenated com.ounds (representing precursors for pharm.ceuticals) and long-chain hydrocarbons. The products obtained from.the analytical and spouted bed pyrolysis processes were also com.ared.

关键词： Brewer’s spent grain Agroindustrial residue Spouted bed Fast pyrolysis Particle m.xing

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Intelligent Resource Allocations for Software-Defined m.ssion-Critical IoT Services

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Com.uters, m.terials & Continua 2022年第11期73卷 4087-4102页

作者： Chaebeen Nam.sa m.th Prohim.Tam.Seokhoon Kim Departm.nt of Software Convergence Soonchunhyang UniversityAsan31538Korea Departm.nt of Com.uter Software Engineering Soonchunhyang UniversityAsan31538Korea

Heterogeneous Internet of Things(IoT)applications generate a diversity of novelty applications and services in next-generation networks(NGN),which is essential to guarantee end-to-end(E2E)com.unication resources for both control plane(CP)and data plane(DP).Likewise,the heterogeneous 5th generation(5G)com.unication applications,including m.bile Broadband Com.unications(m.BC),m.ssive m.chine-Type Com.utation(m.TC),and ultra-reliable low latency com.unications(URLLC),obligate to perform.intelligent Quality-of-Service(QoS)Class Identifier(QCI),while the CP entities will be suffered from.the com.licated m.ssive HIOT ***,the existing m.nagem.nt and orchestration(m.NO)m.dels are inappropriate for resource utilization and allocation in large-scale and com.licated network *** cope with the issues m.ntioned above,this paper presents an adopted software-defined m.bile edge com.uting(SDm.C)with a lightweight m.chine learning(m.)algorithm.nam.ly support vector m.chine(SVm.,to enable intelligent m.NO for real-tim. and resource-constraints IoT applications which require lightweight com.utation ***,the SVm.algorithm.plays an essential role in perform.ng QCI ***,the software-defined networking(SDN)controller allocates and configures priority resources according to the SVm.classification ***,the com.lem.ntary of SVm.and SDm.C conducts intelligent resource m.NO for m.ssive QCI environm.nts and m.ets the perspectives of m.ssion-critical com.unication with resource constraint *** on the E2E experim.ntation m.trics,the proposed schem. shows rem.rkable outperform.nce in key perform.nce indicator(KPI)QoS,including com.unication reliability,latency,and com.unication throughput over the various powerful reference m.thods.

关键词： m.bile edge com.uting Internet of Things software defined networks traffic classification m.chine learning resource allocation

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Q-Switching Pulse Operation in 1.5-μm.Region Using Copper Nanoparticles as saturable Absorber

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Chinese Physics Letters 2017年第3期34卷 41-44页

作者： A.R.m.ham.ad m.T.Ahm.d R.zakaria H.R.A.Rahim.S.F.A.Z.Yusoff K.S.Ham.an H.H.m.Yusof H.Arof S.W.Harun Departm.nt of Electrical Engineering Faculty of EngineeringUniversity of MalayaKuala Lumpur 50603Malaysia Photonics Research Centre Physics DepartmentFaculty of ScienceUniversity of MalayaKuala Lumpur 50603Malaysia

We dem.nstrate a passively Q-switched erbium.doped fiber laser （EDFL） using a copper nanoparticle （CuNP） thin film.as the saturable absorber in a ring cavity. A stable Q-switched pulse operation is observed as the CuNP saturable absorber （sa） is introduced in the cavity. The pulse repetition rate of the EDFL is observed to be proportional to the pum. power, and is lim.ted to 101.2kHz by the m.xim.m.pum. power of 113.7m.. On the other hand, the pulse width reduces from.10.19μs to 4.28μs as the pum. power is varied from.26.1 m. to 113.7m.. The findings suggest that CuNP sa could be useful as a potential saturable absorber for the developm.nt of the robust, com.act, efficient and low cost Q-switched fiber laser operating at 1.5-μm.region.

关键词： Cu m.Region Using Copper Nanoparticles as saturable Absorber Q-Switching Pulse Operation in 1.5 sa kHz EDF

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m.sm.tch repair genes (hm.H1, hPm.1, hPm.2, GTBP/hm.H6,Hm.H2) in the pathogenesis of hepatocellular carcinom.

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World Journal of Gastroenterology 2005年第20期11卷 3020-3026页

作者： Abdel-Rahm.n N. Zekri Gelane m. sabry Abeer A. Bahnassy Kam.l A. Shalaby sabrin A.Abdel-Wahabh Serag zakaria Virology and Im.unology Unit Cancer Biology Departm.nt National Cancer Institute Cairo University Egypt Biochem.stry Departm.nt Faculty of Science Ain Shams University Egypt Pathology Departm.nt National Cancer Institute Cairo University Egypt Tropical m.dicine Departm.nt El-Kaser Al-Aini School of m.dicine Cairo University Egypt

AIm. Dm. m.sm.tch repair (m.R) is an im.ortant m.chanism.for m.intaining fidelity of genom.c DNA. Abnorm.lities in one or m.re m.R genes are im.licated in the developm.nt of m.ny cancers. We investigated the role of expression of m.R genes (hm.H1, hPm.1, hPm.2, GTBP/hm.H6, hm.H2) in hepatocellular carcinogenesis. m.THODS: We evaluated the expression level of m.R genes in 33 hepatocellular carcinom. (HCC) cases using the m.ltiplex reverse transcription (RT) PCR assays, as well as in 16 cases of norm.l adjacent hepatic tissues. β-actin gene was used as an internal control and calibrator for quantification of gene expression. RESULTS: Out of the 33 studied cases, 25 were HCV positive and 30 (90.9%) showed reduced expression in one or m.re of the studied m.R genes. Reduced expression was found in hm.H2(71.9%), hm.H1 (53.3%), GTBP(51.1%), hPm.2 (33.3%) and hPm.1 (6%). A significant correlation was found between reduced expression of hPm.2(P= 0.0069) and GTBP(P= 0.0034), hPm.2 and non-cirrhosis (P= 0.0197), hm.H1 and high grade. On the other hand, 57.1%, 50%, 20%, 18.8%, and 6% of the norm.l tissues distant to tum.rs showed reduced expression of hm.H2, hm.H1, GTBP, hPm.2, and hPm.1 respectively. m.ltivariate analysis revealed a significant correlation between the expression level of hm.H2(P= 0.008), hm.H1 (P= 0.001) and GTBP (P= 0.032) and HCC, between hPm.2, GTBP and HCV-associated HCC (Pm.R genes seem. to play an im.ortant role in HCV-associated HCC. hPm.2 is likely involved at an early stage of hepatocarcinogenesis since it was detected in norm.l adjacent tissues. Reduced expression of hPm.2 provides a growth advantage and stim.lates proliferation which encourages m.lignant transform.tion in non-cirrhotic HCV-infected patients via acquisition of m.re genetic dam.ges.

关键词： Hepatocellular carcinom. m.sm.tch repair Norm.l distant hepatic tissue

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Experim.ntal evaluation of a hydrography surface vehicle in four navigation m.des

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Journal of Ocean Engineering and Science 2017年第2期2卷 127-136页

作者： Hossein m.usa.a.eh Jafarbiglu Ham.d Om.ani Elham.m.nhaseri Farshid Kiapei Ali salm.ni-zakaria Yousef m.khsoos Ashkan m.chanical Engineering of Biosystem. University of TehranIran m.chanical Engineering of Biosystem. University of Shahrekord and Expert of Ports and Maritime OrganizationIran

Considering the effectiveness of m.ritim. transportation,a large num.er of world’s trade is carried by sea and *** ports and harbors are essential for 24 hourly loading/unloading of *** this regard,bathym.try and m.nitoring of depth data especially in real tim. m.nner would be very valuable and *** plot hydrography m.p of ports and harbors in the bureau as online and with low cost,a Surface Vehicle(SV)is designed and *** vehicle could navigate in four *** could seat on the boat and run by joystick or stand in slipway and control by Rem.te Controller(RC)or seat in the office and navigate by a user friend graphical *** the boat could navigate fully autonom.us without any *** accuracy and precision of four m.ntioned navigation m.des was the m.in objective of this *** results illustrated that autonom.us m.de with Standard Deviation(SD)of below 0.5 m.was the m.st precision and com.ortable m.de,while RC is the m.re reliable and trustworthy.

关键词： Autonom.us,Navigation Hydrography Surface vehicle m.nitoring

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On Newton’s m.thod for Solving Nonlinear Equations and Function Splitting

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Num.rical m.them.tics(Theory,m.thods and Applications) 2011年第1期4卷 53-67页

作者： Ioannis K.Argyros saïd Hilout Cam.ron University Department of Mathematics SciencesLawtonOK 73505USA Universitéde Poitiers Laboratoire de Mathématiques et ApplicationsBd.Pierre et Marie CurieTéléport 2B.P.3017986962 Futuroscope Chasseneuil CedexFrance

We provided in[14]and[15]a sem.local convergence analysis for Newton’s m.thod on a Banach space setting,by splitting the given *** this study,we im.rove the error bounds,order of convergence,and sim.lify the sufficie... 详细信息

关键词： Newton’s m.thod Banach space m.jorizing sequence sem.local convergence splitting of an operator

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Two Polyoxom.talate-based Host-guest Com.ounds:Synthesis,Crystal Structure and Catalytic Perform.nce

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Chinese Journal of Structural Chem.stry 2021年第12期40卷 1655-1660,1554页

作者： WANG Song-Xia WANG sa-sa WU Xiao-Yuan YANG Wen-Bin LU Can-Zhong Fujian Norm.l University Fuzhou 350007China CAS Key Laboratory of Design and Assem.ly of Functional Nanostructures and Fujian Provincial Key Laboratory of NanomaterialsFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China University of Chinese Academ. of Sciences Beijing 100049China

Two polyoxom.talate-based host-guest com.ounds,(HL1)2(HPW12O40)〜11H2O(1),(HL2)3(PWi2O40)·3H2O(2)(L_(1)=guanine,L_(2)=2-(1H-1,2,4-triazol-3-yl)pyridine),were synthesized under hydrotherm.l conditions and characterized by EA,PXRD,TG,FT-IR and X-ray single-crystal *** 1 crystallizes in trigonal space group P-3 with a=18.2917(5),b=18.2917(5),c=13.5441(5)A,V=3924.5(3)A^(3),Z=3,m.=3383.26 g/m.l,pcak=4.036 g/cm.(3),F(000)=4137,=48.532 m.^(-1),GOOF=1.062,the final R=0.0713 and wR=0.1865 for 9037 observed reflections with I>2σ(I).Com.ound 2 crystallizes in trigonal space group R-3 with a=19.0017(6),b=19.0017(6),c=25.6361(9)A,V=8016.2(6)A^(3),Z=6,m.=3372.45 g/m.l,p_(calc)=4.188 g/cm.F(000)=8886,μ=47.644 m.^(-1),GOOF=1.077,the final R=0.0380 and wR=0.0976 for 5904 observed reflections with I>2σ(I).These two com.ounds can catalyze selective oxidation of aniline with H2O2 as the *** optim.l conditions,the conversion of aniline with com.ound 1 can reach up to 91.25%,and the selectivity of nitrosobenzene is 78.81%.

关键词： polyoxom.talates catalytic oxidation aniline nitrosobenzene

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