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Chinese Journal of Oceanology and Limnology 2015年第2期33卷 490-499页

作者：李丽芳马洪钢 al-rasheid khaled a.s. Marine College Shandong University Institute of Evolution & Marine Biodiversity Ocean University of China Zoology Department King Saud University

In this paper,we explore possible conflict between morphological and molecular interpretations of phylogenetic relationships within the well-known peritrichous genus Zoothamnium. On the basis of morphological evidence,for a long time this genus has been believed to be a well-defined monophyletic taxon. Nonetheless,Z oothamnium exhibits higher genetic diversity than the gross morphology of its species. Here,we used all available genetic information for the small subunit of ribosomal RNa.s.U r RNA) and internal tra.s.ribed spacer region(ITs1-5.8s-ITs2) for this genus to reconstruct phylogenies for four datasets(ssU rRNA,ITs1,ITs2,and ITs1-5.8s-ITs2) and a combined dataset(ssU rRNA+ITs1-5.8sITs2) using different phylogenetic methods and with consideration of the secondary structure of the genes. Confidence in phylogenetic tree selection was a.s.ssed with the approximately unbiased test. The molecular results showed both that Zoothamnium is more likely to be polyphyletic,and morphologically similar genera Zoothamnopsis and Myoschiston were alwa.s.nested among Zoothamnium species. Accordingly,as with some other groups of ciliates,to understand more fully the correct phylogeny of Zoothamnium there remains a need for additional data from both morphological and molecular studies,covering additional Zoothamnium spp. and members of closely related genera(e.g. Zoothamnopsis,Myoschiston,and Epistylis).

关键词：聚缩虫形态学分子结单系 rRNA基因多元性纤毛门小亚基核糖体RNA

Molecular phylogeny of oligotrich genera Omegastrombidium and Novistrombidium(Protozoa,Ciliophora) for the systematical relationships within Family strombidiidae

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Chinese Journal of Oceanology and Limnology 2010年第4期28卷 769-777页

作者：张倩倩伊珍珍徐大鹏 al-rasheid khaled a.s. 龚骏宋微波 Laboratory of Protozoology Key Laboratory of Ecology and Environmental Science in Guangdong Higher EducationCollege of Life ScienceSouth China Normal University Laboratory of Protozoology Institute of Evolution and Marine BiodiversityOcean University of China Biology Department North Carolina Central University Zoology Department King Saud University

The phylogeny of the oligotrich ciliates is currently a hot debate despite the availability of both morphological and molecular *** the present paper,further small subunit rRNa.s. rRNA) genes were analyzed from the Genera Omegastrombidium and Novistrombidium,as well as from strombidium,and combined with three new ss rRNa.s.quences from strombidium basimorphum,*** population QD-1,and Novistrombidium testaceum population *** phylogenetic positions of these organisms were inferred using Bayesian inference,Maximum Likelihood,and Maximum Pa.s.mony *** main results are:(1) the ss rRNA gene sequence analyses match the recent findings about the molecular evolution of oligotrichs,indicating that the family strombidiidae is paraphyletic;(2) the Genus Omegastrombidium is separated from the Genus strombidium,as shown in recent cladistic analyses;(3) morphospecies in Genus Novistrombidium,based on similarity of somatic ciliature,are separated from each other in all topological trees,indicating that this genus could be a paraphyletic group;(4) the molecular data indicate a possibility of paraphyly for the genus strombidium;and(5) the similarities of the ss rRNA gene of specimens identified as *** and *** are 99.8%-100%.However,present knowledge on the oligotrichs sensu stricto is still insufficient and further studies based on both molecular and other technologies are required.

关键词：分子系统发育原生动物家庭 rRNA基因纤毛门体制 rRNA序列基因序列分析

a.s.ssing mariculture water quality with the structural and functional characteristics of a ciliate community

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Chinese Journal of Oceanology and Limnology 2011年第1期29卷 128-135页

作者：李继秋许恒龙林晓凤 al-rasheid khaled a.s. Laboratory of Protozoology Key Laboratory of Ecology and Environmental Science in Guangdong Higher EducationSouth China Normal University Laboratory of Protozoology Institute of Evolution and Marine biodiversityOcean University of China Zoology Department King Saud University

Ciliated protozoa play important roles in micro-ecosystems, especially in marine biotopes. However, few studies have been carried out on the periphytic, or aufwuch, forms in mariculture waters so far. In this study, we sampled periphytic ciliate communities in two closed mariculture ponds (ponds CP1 and CP2) and a natural seawater reservoir (pond RP) using a gla.s.slide method to evaluate their colonizing processes and general ecological features, as well as their application as water quality indicators. We analyzed species compositions, structural parameters (species number, richness, diversity, evenness, abundance and dBP) and functional parameters (G, seq and T90%). Pond RP was characterized by higher levels of structural parameters (except for abundance and dBP) and more equal proportion of the major taxonomic groups. The values of seq were significantly higher in pond RP and similar in both pond CP1 and CP2. It was a.s. demonstrated that environmental factors, including NO2-H, NO3-H, NH3-H, soluble reactive phosphate, temperature and pH, were the first principal factors affecting the communities. Among them, temperature and chemical factors were all significantly and negatively correlated with species number (Pss (Psity (Psitive correlated with abundance (Psite correlations between pH and structural parameters were observed. This study showed that there were significant differences in species composition, structural parameters and functional parameters of the periphytic ciliate communities among the ponds, which were in agreement with the water quality. Results of this study confirmed the periphytic ciliate communities to be useful bioindicators of water quality in intensive mariculture waters.

关键词：海水养殖池塘水质指标纤毛虫社会结构结构参数评估海洋生态系统物种数量

Population dynamics of marine ciliate Euplotes vannus (Protozoa, Ciliophora) in different artificial seawaters

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Chinese Journal of Oceanology and Limnology 2011年第1期29卷 109-117页

作者：许恒龙朱明壮姜勇高珊 MIN Gi-sik al-rasheid khaled a.s. Laboratory of Protozoology Institute of Evolution and Marine BiodiversityOcean University of China Department of Biological sciences Inha University Zoology Department King Saud University

To study population dynamics of marine ciliates in different artificial seawaters (AsW), the population growth dynamics of a common marine ciliate Euplotes vannus were investigated using beef extract media and rice media for five types of AsW and natural seawater (NsW). The results show that: (1) the population growth rate was in the order of NsW>Flack AsW>Nakamula AsW>schmadz AsW>Oshima AsW>subow AsW and was considerably higher in rice media than in beef extract media (apart from subow AsW); (2) the maximum density of E. vannus in stationary phase in each treatment was ranked as Flack AsW>Nakamula AsW>schmadz AsW>NsW>Oshima AsW>subow AsW, and was again higher in rice media than in beef extract media (except for subow AsW); (3) the exponential and stationary phases were longer in rice media than in beef extract media; (4) strains of E. vannus that had been domesticated for >1 year in AsW grew significantly slower, with lower maximum density and longer stationary phase than those isolated and maintained in NsW. It was demonstrated that: (1) E. vannus may grow well in Flack, Nakamula and schma.s.AsW compared with NsW (mainly in terms of growth rate); and (2) Oshima AsW is the preferred choice for stock cultures of E. vannus, but the AsWs Flack, Nakamula and schmadz are preferred for ma.s.culture. These findings suggest that these three AsWs are effective for the cultivation of marine protozoa for experimental studies on ecology, toxicology and molecular biology.

关键词：海洋纤毛虫种群动态人工海水原生动物纤毛门分子生物学实验人口增长最大密度

Temporal population dynamics of dinoflagellate Prorocentrum minimum in a.s.mi-enclosed mariculture pond and its relationship to environmental factors and protozoan grazers

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Chinese Journal of Oceanology and Limnology 2010年第1期28卷 75-81页

作者：许恒龙 MIN Gi-sik CHOI Joong-Ki 朱明壮姜勇 al-rasheid khaled a.s. Laboratory of Protozoology KLMOcean University of China Department of Biological sciences Inha University Department of Oceanography Inha University Zoology Department King Saud University

The ecological processes and interrelationships between protists,either autotrophic or heterotrophic,and environmental factors in mariculture ponds are largely *** study investigated the temporal dynamics of potentially harmful dinoflagellate,Prorocentrum minimum (Pavillard) schiller,and its relationship to physico-chemical factors and protozoan grazers over a complete cycle in a.s.mi-enclosed shrimp-farming pond near Qingdao,Northern *** occurred frequently in low numbers from June to August,followed by a.s.arp increase from the middle of August,reaching a.s.ngle maximum peak value of 2.2×105 cells L-1 in *** variation in abundance was positively correlated with dissolved nitrogen,but showed a.s.gnificant inverse relationship to abundance of the dominant ciliates,Tintinnopsis lohmanni and Askenasia *** results provide statistical evidence that the number of *** increased with increasing nitrogen,and the suppression or shortening of algal bloom may be a.s.ciated with protozoan grazers,such as Tintinnopsis lohmanni,in mariculture ponds.

关键词：海水养殖池塘微小原甲藻食草动物原生动物环境因素时空动态半封闭种群动态

Defamiliarizing Reality for Mental and Physical subjection:Rereading Harold Pinter's The Room and The Dumb Waiter as Political Comedies

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Fudan Journal of the Humanities and social sciences 2024年第1期17卷 159-191页

作者： Ahmed Abdulkhair Abulmagd khaled Faculty of Languages&Tra.s.ation Al-Azhar UniversityNasr CityCairoEgypt

While Pinter's earliest pla.s.have been recognized in the modernist history of theatre as comedies of menace and his later pla.s.as political comedies,this article argues that his earliest pla.s.are equally very liable to be interpreted as political *** of their a.s.rdist dramatization of people's helpless exposure to external,unidentifiable threa.s.a common post-WWII characteristic feature of human experience,I claim that The Room and The Dumb Waiter(both written 1957,staged 1960),two model examples of Pinter's earliest oeuvres,do not simply follow the a.s.hetic of a.s.rdist theatre to express human *** audience's experience of viewing the theatrical performances of both pla.s.in terms of discursive cyclicality or character normality is subverted into one of changeability,strangeness,and *** foreground the political implications of such revolutionary theatrical experience,Pinter's pla.s.are examined in the light of his unique use of defamiliarization,relying not on Brecht's traditional techniques of singing,dancing,image-projecting,or captioning,but on a.s.mple,dual technique of image destruction and *** consists of divesting characters of their normality and portraying them instead as individua.s.who identify only with unusual images of place,time,body,and *** this special technique of defamiliarization,both pla.s.are examined to reveal Pinter's central political theme of undermining reality for purposes of mental and physical subjections.

关键词： Defamiliarization Comedy of menace Political comedy subjection Harold Pinter

Developing a Model for Parkinson’s Disease Detection Using Machine Learning algorithms

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Computers, Materia.s.& Continua 2024年第6期79卷 4945-4962页

作者： Naif al Mudawi Department of Computer science College of Computer Science and Information SystemNajran UniversityNajran55461Saudi Arabia

Parkinson’s disease(PD)is a chronic neurological condition that progresses over *** start to have trouble speaking,writing,walking,or performing other basic skills as dopamine-generating neurons in some brain regions are injured or *** patient’s symptoms become more severe due to the worsening of their signs over *** this study,we applied state-of-the-art machine learning algorithms to diagnose Parkinson’s disease and identify related risk *** research worked on the publicly available dataset on PD,and the dataset consists of a.s.t of significant characteristics of *** aim to apply soft computing techniques and provide an effective solution for medical professiona.s.to diagnose PD *** research methodology involves developing a model using a machine learning *** the model selection,eight different machine learning techniques were adopted:Namely,Random Forest(RF),Decision Tree(DT),support Vector Machine(sVM),Naïve Bayes(NB),Light Gradient Boosting Machine(LightGBM),K-Nearest Neighbours(KNN),Extreme Gradient Boosting(XGBoost),and Logistic Regression(LR).subsequently,the concentrated models were validated through 10-fold Cross-Validation and Receiver Operating Characteristic(ROC)—Area Under the Curve(AUC).In addition,GridsearchCV was utilised to measure each algorithm’s best parameter;eventually,the models were trained through the hyperparameter tuning *** 98%accuracy,LightGBM had the highest accuracy in this ***,KNN,and sVM came in second with 96%***,the performance scores of NB and LR were recorded to be 76%and 83%,*** is to be mentioned that after applying 10-fold cross-validation,the average performance score of LightGBM accounted for 93%.At the same time,the percentage of ROC-AUC appeared at 0.92,which indicates that this LightGBM model reached a.s.tisfactory ***,we extracted meaningful insights and figured out potential ga.s.on top of *** extracting meaningful in

关键词： Light GBM cross-validation ROC-AUC Parkinson’s disease(PD) sVM and XGBoost

sexual dimorphism of G protein-coupled receptor signaling in the brain

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Neural Regeneration Research 2024年第8期19卷 1635-1636页

作者： sara aljoudi Hamdan Hamdan khaled s.Abd-Elrahman Department of Physiology and Immunology College of Medicine and Health SciencesKhalifa UniversityAbu DhabiUnited Arab Emirates Healthcare Engineering Innovation Center(HEIC) Khalifa UniversityAbu DhabiUnited Arab Emirates Department of Anesthesiology Pharmacology and Therapeuticsand Djavad Mowafaghian Center for Brain HealthUniversity of British ColumbiaVancouverBCCanada Department of Pharmacology and Therapeutics College of Medicine and Health ScienceKhalifa UniversityAbu DhabiUnited Arab Emirates Department of Pharmacology and Toxicology Faculty of PharmacyAlexandria UniversityAlexandriaEgypt

G protein-coupled receptors(GPCRs)represent the most substantial family of membrane receptors that are targeted by *** and Drug Administration-approved *** of the preclinical research to understand the pharmacology of... 详细信息

关键词： drugs clinical targeted

Magneto-Photo-Thermoelastic Excitation Rotating semiconductor Medium Based on Moisture Diffusivity

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Computer Modeling in Engineering & sciences 2024年第10期141卷 107-126页

作者： khaled Lotfy A.M.s.Mahdy alaa A.El-Bary E.s.Elidy Department of Mathematics Faculty of ScienceZagazig UniversityZagazig44519Egypt Department of Mathematics Faculty of ScienceTaibah UniversityMadinah42353Saudi Arabia Department of Mathematics and statistics College of ScienceTaif UniversityTaif11099Saudi Arabia Arab Academy for science Technology and Maritime TransportAlexandria1029Egypt

In this research,we focus on the free-surface deformation of a one-dimensional elastic semiconductor medium as a function of magnetic field and moisture *** problem aims to analyze the interconnection between plasma and moisture diffusivity processes,as well as thermo-elastic *** study examines the photothermoelasticity tra.s.ort process while considering the impact of moisture *** employing Laplace’s tra.s.ormation technique,we derive the governing equations of the photo-thermo-elastic *** equations include the equations for carrier density,elastic waves,moisture tra.s.ort,heat conduction,and constitutive *** stresses,thermal conditions,and plasma boundary conditions are used to calculate the fundamental physical parameters in the Laplace *** employing numerical techniques,the Laplace tra.s.orm is inverted to get complete time-domain solutions for the primary physical domains under ***,thermoelastic,and thermoelectric characteristics are employed in conjunction with a graphical analysis that takes into consideration the effects of applied forces on displacement,moisture concentration,carrier density,stress due to forces,and temperature distribution.

关键词： Moisture diffusivity semiconductor photothermoelastic rotation thermomechanical waves laplace tra.s.orm

Comparative analysis on the performance of different types of input-and command-shaping controllers in minimizing payload residual vibration of an overhead crane with an inclined supporting track

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International Journal of Mechanical system Dynamics 2024年第1期4卷 22-33页

作者： Mohammed alfares khaled alhazza Mechanical Engineering Department College of Engineering and PetroleumKuwait UniversityKuwait CityKuwait

Reducing the effects of external disturbance on overhead crane systems is crucial,as they can impair the controller performance and ca.s. excessive vibrations or oscillations of the *** such external disturbance is the inclination of the supporting track of the crane trolley,which ca.s.s the system dynamics model to *** open-loop control strategy is widely utilized to control the payload sway motion and generally does not require any alterations in the physical structure of a.s.stem or the installation of sensors and/or *** and command shaping are two common open-loop control techniques applied to control overhead *** this paper,the effect of moving an overhead crane system along an inclined supporting track is *** addition,the ability of different types of input-and command-shaping control schemes to suppress the residual vibrations due to trolley track inclination is *** types of input-shaping controllers,which are double-step,zero vibration,and one command waveform(WF)shaper based on a trigonometric function,are used and tested.A linear equation of motion of the overhead crane resting on an inclined surface is developed to simulate the overhead crane and payload *** effectiveness of the different types of open-loop controllers to suppress residual vibrations is verified by both simulation and experimental *** addition,a new WF command shaper is proposed and designed to overcome track inclination while eliminating payload residual vibration.A comprehensive comparative analysis,both numerically and experimentally,is performed on the new proposed shaper to measure its effectiveness in handling inclination when compared to other types of open-loop *** new shaper outperforms other controllers in eliminating payload residual vibration for a wider range of inclination angles.

关键词： overhead cranes open-loop control input and command shaping payload residual vibrations