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Elabela is a reliable biomarker for predicting early onset preeclampsia:A comparative study

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World Journal of Clinical Cases 2023年第17期11卷 3993-4002页

作者： Eham amer Ali Wassan Nori Alea Farhan Salman Taghreed S Saeed Al-Rawi Ban H Hameed Raid M Al-Ani Department of Chemistry and Biochemistry Mustansiriyah UniversityBaghdad 10052Iraq Department of Obstetrics and Gynecology Mustansiriyah UniversityBaghdad 10052Iraq National Central of Hematology Mustansiriyah UniversityBaghdad 10052Iraq Department of Biochemistry University of Anbar College of MedicineRamadi City 31001AnbarIraq Department of Surgery/Otolaryngology University of Anbar College of MedicineUniversity of Anbar College of MedicineRamadi City 31001AnbarIraq

BACKGROUND Preeclampsia(PE)is a multisystemic metabolic disease with an undetermined *** is a worldwide cause of maternal and perinatal morbidity,subdivided into early(EoPE)and late-onset(LoPE)according to 34 wk of gestation as a *** researchers investigated biomarkers for predicting PE to halt its consequences on the feto-maternal ***(Ela)is a newly discovered peptide hormone that was implicated in PE *** rodent studies discussed Ela’s role in controlling blood ***,Ela deficiency was associated with PE *** To test whether plasma Ela could serve as a reliable marker for predicting PE based on the time of onset(EoPE vs LoPE)compared to age and body mass matched healthy controls since no definitive treatment exists for PE but to terminate a *** This case-control study recruited(n=90)pregnant who fulfilled inclusion criteria;they were allocated into three groups:EoPE(30/90)(9.156 with 96.7%and 93.3%sensitivity and specificity,P<0.0001 in predicting *** A strong correlation of serum Ela with PE parameters with excellent sensitivity and specificity in distinguishing EoPE independent of the BMI,age,and blood pr

关键词： Early onset preeclampsia Late-onset preeclampsia Prediction Elabela Preeclampsia Pregnant women

Inverse Length Biased Maxwell Distribution:Statistical Inference with an Application

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Computer Systems Science & Engineering 2021年第10期39卷 147-164页

作者： amer Ibrahim Al-Omari Ayed R.A.Alanzi Department of Mathematics Faculty of ScienceAl al-Bayt UniversityMafraqJordan Department of Mathematics College of Science and Human Studies at Hotat SudairMajmaah UniversityMajmaah 11952Saudi Arabia

In this paper,we suggested and studied the inverse length biased Maxell distribution(ILBMD)as a new continuous distribution of one *** ILBMD is obtained by considering the inverse transformation technique of the Maxwell length biased *** characteristics of the ILBMD such as the moments,moment generating function,mode,quantile function,the coefficient of variation,coefficient of skewness,Moors and Bowley measures of kurtosis and skewness,stochastic ordering,stress-strength reliability,and mean deviations are *** addition,the Bonferroni and Lorenz curves,Gini index,the reliability function,the hazard rate function,the reverse hazard rate function,the odds function,and the distributions of order statistics for the ILBMD,are *** ILBMD parameter is estimated using the maximum likelihood method,the method of moments,the maximum product of spacing technique,the ordinary and weight least square procedures,and the Cramer-Von-Mises *** Fishers information,as well as the Rényi and q-entropies,are *** investigate the usefulness of the proposed lifetime distribution and to illustrate the purpose of the study,a real dataset of the relief times of 20 patients receiving an analgesic is used.

关键词： Maxell distribution inverse length biased Maxwell distribution Fisher’s information methods of estimation goodness of fit tests

Electromagnetic Time Reversal Algorithms and Source Localization in Lossy Dielectric Media

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Communications in Theoretical Physics 2014年第12期61卷 779-789页

作者： Abdul Wahab amer Rasheed Tasawar Hayat Rab Nawaz Department of Mathematics COMSATS Institute of Information Technology Department of Mathematics Quaid-i-Azam University Nonlinear Analysis and Applied Mathematics (NAAM) Research Group Faculty of Science King Abdulaziz University

The problem of reconstructing the spatial support of an extended radiating electric current source density in a lossy dielectric medium from transient boundary measurements of the electric fields is studied. A time reversal algorithm is proposed to localize a source density from loss-less wave-field measurements. Further, in order to recover source densities in a lossy medium, we first build attenuation operators thereby relating loss-less waves with lossy ones. Then based on asymptotic expansions of attenuation operators with respect to attenuation parameter, we propose two time reversal strategies for localization. The losses in electromagnetic wave propagation are incorporated using the Debye's complex permittivity, which is well-adopted for low frequencies(radio and microwave) associated with polarization in dielectrics.

关键词： time reversal electromagnetic waves inverse source problem Debye’s law attenuation operators

Active control of an aircraft tail subject to harmonic excitation

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Acta Mechanica Sinica 2007年第4期23卷 451-462页

作者： M.Eissa H.S.Bauomy Y.A.amer Department of Engineering Mathematics Faculty of Electronic EngineeringMenouf 32952Egypt Department of Mathematics Faculty of ScienceZagazig UniversityZagazigEgypt

Vibration of structures is often an undesirable phenomena and should be avoided or controlled. There are two techniques to control the vibration of a system, that is, active and passive control techniques. In this paper, a negative feedback velocity is applied to a dynamical system, which is represented by two coupled second order nonlinear differential equations having both quadratic and cubic nonlinearties. The system describes the vibration of an aircraft tail. The system is subjected to multi-external excitation forces. The method of multiple time scale perturbation is applied to solve the nonlinear differential equations and obtain approximate solutions up to third order of accuracy. The stability of the system is investigated applying frequency response equations. The effects of the different parameters are studied numerically. Various resonance cases are investigated. A comparison is made with the available published work.

关键词： Active vibration control Stability Response curves Aircraft tail

Mapping the global research landscape on nutrition and the gut microbiota:Visualization and bibliometric analysis

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World Journal of Gastroenterology 2022年第25期28卷 2981-2993页

作者： Sa'ed H Zyoud Muna Shakhshir Amani S Abushanab Samah W Al-Jabi amer Koni Moyad Shahwan Ammar Abdulrahman Jairoun Adham Abu Taha Department of Clinical and Community Pharmacy College of Medicine and Health SciencesAn-Najah National UniversityNablus 44839Palestine Poison Control and Drug Information Center College of Medicine and Health SciencesAn-Najah National UniversityNablus 44839Palestine Clinical Research Centre An-Najah National University HospitalNablus 44839Palestine Department of Nutrition An-Najah National University HospitalNablus 44839Palestine Division of Clinical Pharmacy Hematology and Oncology Pharmacy DepartmentAn-Najah National University HospitalNablus 44839Palestine Department of Pharmacy Ajman UniversityAjman 346United Arab Emirates Centre of Medical and Bio-allied Health Sciences Research Ajman UniversityAjman 346United Arab Emirates Department of Health and Safety Dubai MunicipalityDubai 67United Arab Emirates Department of Biomedical Sciences College of Medicine and Health SciencesAn-Najah National UniversityNablus 44839Palestine Department of Medicine College of Medicine and Health SciencesAn-Najah National UniversityNablus 44839Palestine

BACKGROUND Nutrition is a significant modifiable element that influences the composition of the gastrointestinal microbiota,implying the possibility of therapeutic diet methods that manipulate the composition and diversity of the *** To overview research papers on nutrition and gut microbiota and determines the hotspots in this field at the global *** Scopus and Reference Citation Analysis were used to construct a bibliometric *** was decided to create bibliometric indicators and mapping as in most previous studies.2012 through 2021 served as the study's *** A total of 5378 documents from the Scopus database were selected for *** all retrieved studies,78.52%were research papers(n=4223),followed by reviews(n=820;15.25%).China ranked first with a total number of articles of 1634(30.38%),followed by the United States in second place with a total number of articles of 1307(24.3%).In the last decade,emerging hotspots for gut microbiota and nutrition research included"gut microbiota metabolism and interaction with dietary components","connection between the gut microbiota and weight gain",and"the influence of high-fat diet and gut microbiota on metabolic disorders".CONCLUSION This is the first thorough bibliometric analysis of nutrition and gut microbiota publications conducted on a global *** of the association between nutrition/diet and the gut microbiota is still in its infancy and will be expanded in the ***,according to recent trends,the"effect of gut microbiota and high-fat diet on metabolic disorders"will be an increasing concern in the future.

关键词： Gut microbiota Microbiome Nutrition Diet Bibliometric Scopus VOSviewer

New Improved Ranked Set Sampling Designs with an Application to Real Data

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Computers, Materials & Continua 2021年第5期67卷 1503-1522页

作者： amer Ibrahim Al-Omari Ibrahim M.Almanjahie Department of Mathematics Faculty of ScienceAl al-Bayt UniversityMafraqJordan Department of Mathematics College of ScienceKing Khalid UniversityAbha62529Saudi Arabia Statistical Research and Studies Support Unit King Khalid UniversityAbha62529Saudi Arabia

This article proposes two new Ranked Set Sampling(RSS)designs for estimating the population parameters:Simple Z Ranked Set Sampling(SZRSS)and Generalized Z Ranked Set Sampling(GZRSS).These designs provide unbiased estimators for the mean of symmetric *** is shown that for non-uniform symmetric distributions,the estimators of the mean under the suggested designs are more efcient than those obtained by RSS,Simple Random Sampling(SRS),extreme RSS and truncation based RSS ***,the proposed RSS schemes outperform other RSS schemes and provide more efcient estimates than their competitors under imperfect *** suggested mean estimators under perfect and imperfect rankings are more efcient than the linear regression estimator under *** proposed RSS designs are also extended to cover the estimation of the population *** data is used to examine wthe usefulness and efciency of our estimators.

关键词： Ranked set sampling unbiased estimator simple random sampling mean squared error efciency imperfect ranking

A Smart Strategy for Blocking the Distance Protection Function during VT Fuse Failure

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Intelligent Control and Automation 2022年第3期13卷 25-37页

作者： Ali M. Eltamaly amer Nasr A. Elghaffar Electrical Engineering Department Faculty of Engineering Mansoura University Mansoura Egypt Sustainable Energy Technology Center King Saud University Riyadh Saudi Arabia Alfanar Engineering Service Alfanar Company Riyadh Saudi Arabia Electrical Engineering Department Faculty of Engineering Minia University Minia Egypt

Saving the electrical power system in stable condition is considered as one of important challenges to avoid any failure of high voltage equipment. Additionally, with the increasing off the critical loads, it’s very important to use the accurate protection system that can deal with any abnormal condition. This paper studies one of critical cases that can effect on the coordination of the protection system with the faults during fuse fail condition. Over Head transmission line (OHTL) is the most part in the power system that faces the disturbances, which can be protected by multi-protection functions as line differential function, distance protection function, over current, earth fault, over/under voltage etc. The distance protection function is depending on the line voltage and the load current to calculate the load zone. This paper aims to prevent the falls operation of distance protection function during voltage transformer fuse failure condition.

关键词： Protection System High Voltage Distance Protection Power System Quality

An assessment of paleodepositional environment and maturity of organic matter in sediments of the Setap Shale and Belait formations in West Sabah,East Malaysia by organic geochemical methods

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Chinese Journal Of Geochemistry 2010年第1期29卷 42-52页

作者： amer M. Burgan Che Aziz Ali School of Environmental and Natural Resources Department of GeologyFaculty of Science and TechnologyUniversiti Kebangsaan Malaysia

The black shale samples collected from two Neogene formations in the Klias Peninsula area,West Sabah,have been assessed and characterized in details by gas chromatography,gas chromatography-mass spectrometry and a variety of organic geochemical *** aims of this study are to describe the characteristics of organic matter of these sediments in terms of source/type of the organic matter,assess its thermal maturity and paleoenvironment of deposition,based primarily on biomarker *** results of both formations do not reveal significant differences within the rock *** gas chromatograms of the saturated hydrocarbon fractions of the Setap Shale and the Belait formations displayed monomodal n-alkane distributions and nearly identical regular sterane compositions with a predominance of C27 regular *** are consistent with open marine depositional environments dominated by marine biological *** related feature of these rock extracts is the presence of a high relative abundance of gammacerane,indicating anoxic marine hypersaline source depositional *** relatively high abundance of common land plant-derived biomarkers,such as bicadinanes and oleananes,is a clear indication of a major terrigenous input to the source of the extractable organic *** predominance of oleanane biomarkers in both formations is indicative of angiospermis input and Tertiary source *** high C29/C30 hopane ratios,moderate development of C33-C35 hopanes,high abundance of tricyclic terpanes and a slight predominance of C27 regular sterane over C28 and C29 steranes are characteristic features tending to suggest a significant marine influence on these source rocks,thereby suggesting a mixed source *** 22S/(22S+22R)C32 hopane ratio has reached equilibrium,and this is supported by the high maturity level as indicated by the 22S/22SC31-33 extended hopane ratios and 20S/(20S+20R)C29 regular steranes ratios.

关键词：有机质成熟度沉积古环境黑色页岩地球化学方法沉积物评估马来西亚贝雷

An explicit and novel structure,lattice dynamics,and photoemission of La-doped nanocrystalline SrZrO_(3) perovskite

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Rare Metals 2021年第1期40卷 105-112页

作者： Kamilia Sedeek Nahed Makram Hanan Hantour Taghreed Zaghloul amer Shimaa Ali Said Nano-Materials Laboratory Physics DepartmentFaculty of ScienceAl-Azhar UniversityNasr CityCairo 11751Egypt Physics Department Faculty of ScienceAl-Azhar UniversityNasr CityCairo 11751Egypt

As no complete and comprehensive studies have been previously reported for La-doped nanocrystalline SrZrO_(3)(SZO),we researched herein a detailed investigation for pure and La-doped samples.A modified solid-state reaction process,including successive cycles of milling and sintering at high temperature,was followed to produce SZO and Sr_(0.9)La_(0.1)ZrO_(3)(SLZO)powdered *** analysis of X-ray diffractometer data predicts that the two samples exhibit orthorhombic structure with an increase in crystallite size by~25%for doped sample.A great reduction in Raman modes intensity(~60%)and an annihilation of several vibration modes were detected using Raman *** degree of ordering on the B-site was recorded to be higher in La-doped *** to ultraviolet-visible(UV-Vis)absorption,a decrease in the optical gap width(E_(g))from 4.40 eV to 4.21 eV was achieved by La incorporation due to the presence of additional defect states such as oxygen and Sr vacancies at the band *** process of electron-hole recombination was studied using photoluminescence(PL)*** of PL spectra yielded four emission bands:one green band,one blue band,and two violet *** intense violet emission atλ=393 nm approximately five times greater than that detected for pure SZO is realized as La^(3+)substitutes for Sr^(2+).Such property nominates SLZO for technological applications requiring highly intense violet emission,e.g.,light-emitting diodes.

关键词： Orthorhombic perovskite structure Lattice dynamics Diffused reflectance Photoluminescence Highly intense violet emission