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Formation Mechanisms of Some Features in Siliceous Upper Cretaceous-Lower Tertiary Beds of Jordan-Undulations, Geodes, Boudinages

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Open Journal of Geology 2024年第4期14卷 569-577页

作者： Elias Salameh Hani khoury Department of Geology University of Jordan Amman Jordan

Geode, boudinage, and undulation structures are widely distributed in the siliceous beds of the Upper Cretaceous/Tertiary rocks in Jordan. Their formation was attributed to tectonic forces, syngenetic processes, organic disintegration processes, subaquatic gliding, compaction and settlement, and meteoritic impacts. In this work, the structural features in the siliceous beds of Jordan are attributed to an interplay of load and directed pressures, and mineralogical transformation processes (opal-A to opal-CT to quartz), governed by pH changes. Tectonic directed pressure was acting in an ESE-WSW direction and is common in the silicified limestone of Upper Cretaceous.

关键词： Undulations Geodes Boudinages Opal-A Porcelanite Chert Transformations pH Changes Stress Fields Jordan

安全排除COVOD-19门诊病人中肺栓塞的策略：一项多中心回顾性研究

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国际医学放射学杂志 2023年第5期 626-626页

作者： G.Chassagnon M.E.Hajjam S.Boussouar M.P.revel r.khoury B.Ghaye 陈瑾

摘要目的确定在不行CT肺血管成像（CTPA）的情况下排除COVID-19门诊病人肺栓塞（PE）的安全策略。方法回顾性分析15所大学医院行CTPA检查的新型冠状病毒感

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Deep Morphea in an Immunosuppressed Patient With Anti-U1rNP Myositis:A Case report

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International Journal of Dermatology and Venereology 2024年第2期7卷 111-114页

作者： Ahmad Berjawi Laure L.Irani Jinane r.El khoury Department of Dermatology Gilbert and Rose Marie Chagoury School of MedicineLebanese American UniversityBeirut 1100Lebanon Department of rheumatology Division of Internal MedicineGilbert and Rose Marie Chagoury School of MedicineLebanese American University Medical CenterBeirut 1100Lebanon

Introduction:Morphea is an inflammatory skin disease characterized by skin thickening due to increased collagen deposition in the dermis or subcutaneous ***-U1rNP myositis is a newly described entity characterized by myositis,arthritis,interstitial lung disease,and raynaud *** present a case of a unique combination of deep morphea in a patient with anti-U1rNP *** presentation:A 64-year-old male with 5-year history of proximal muscle weakness,polyarthritis,raynaud phenomenon,and dyspnea on multiple immunosuppressives presented with localized infiltrated,tight,and hyperpigmented plaques over the posterior thighs and mid-to-lower back developing over the last 2 years and limiting his *** workup revealed a positive ANA,anti-U1rNP antibody,anti-Jo1 antibody,and anti-ro52 *** workup showed restrictive lung disease,kidney disease,and *** was diagnosed with anti-U1rNP *** biopsy of the back lesion showed deep ***:Association of deep morphea with anti-U1rNP myositis is not described prior in the *** of morphea is challenging since the patient is already on immunosuppressive *** patient failed methotrexate prior and is currently on Mycophenolate mofetil and Deflazacort which are reported as potential treatment for ***,physical therapy plus topical Tacrolimus were suggested as an initial measure to preserve the range of motion of his posterior thighs and *** is a case of progressive deep morphea developing in a patient with a unique autoimmune profile on immunosuppressive ***:Anti-U1rNP myositis is a challenging diagnosis and should be always thought of in patients with positive anti-U1rNP,myositis,interstitial lung disease,arthritis,kidney disease,and raynaud ***,deep morphea treatment in immunosuppressed patients is challenging and different measures should be considered.

关键词： deep morphea immunosuppression anti-U1rNP myositis case report

Intra-articular interventions in osteoarthritis:Navigating the landscape of hyaluronic acid,mesenchymal stem cells,and plateletrich plasma

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World Journal of Orthopedics 2024年第8期15卷 704-712页

作者： Somar Soufan Joenne Al khoury Zahi Hamdan Mohamad Ali rida Department of Medicine University of BalamandBeirut 00000Lebanon Department of Internal Medicine Clemenceau Medical CenterBeirut 12345Lebanon

Osteoarthritis(OA)poses a substantial burden on patients,leading to pain,functional decline,and reduced quality of *** conventional treatments focus on symptom management,disease-modifying interventions are yet to be *** review explores the efficacy of intra-articular interventions,particularly hyaluronic acid(HA),mesenchymal stem cells(MSCs),and platelet-rich plasma(PrP),in the context of OA *** injections,with diverse formulations like Hylan G-F20,sodium hyaluronate,and hyaluronan,present varying outcomes,necessitating a nuanced understanding of their effectiveness and *** therapy,derived from adipose tissue,umbilical cord,or bone marrow,shows promising results in clinical improvement,with adipose-derived MSCs demonstrating efficacy in maintaining benefits over 6 ***,bone-marrow-derived MSCs show limited effectiveness,highlighting the need for sourcespecific *** has emerged as a superior option for long-term pain reduction and quality of life improvement,with leukocyte-poor formulations and a critical platelet count of 10 billion demonstrating optimal *** comprehensive analysis underscores the potential of intra-articular interventions in OA management,emphasizing the need for personalized and evidence-based approaches to enhance treatment efficacy and patient outcomes.

关键词： Osteoarthritis,Viscosupplementation Platelets Hyaluronic acid Stem cell

Analysis and Optimization of Operational and Pollutant Attributes of Diesel Engine with CNT-Infused Orange Peel Biodiesel-Diesel Blend Fuel

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Journal of Thermal Science 2024年第2期33卷 761-778页

作者： ranjeet rAI r.r.SAHOO Mechanical Engineering Department GLA UniversityMathura281406India Mechanical Engineering Department IIT(BHU)Varanasi221005India

The current study is performed to find sustainable solutions for the future of transportation and environmental *** conventional methods and experimental design table(L16 Orthogonal Array)techniques have been employed to examine and optimize a diesel-powered engine's operational and pollutant *** L16 Orthogonal Array is obtained through Taguchi's experimental design approach using Minitab 16 *** experimental design incorporated three control variables,namely engine speed,fuel type,and engine load,each with four *** operational parameters,namely brake thermal efficiency(BTE)and brake specific fuel consumption(BSFC),as well as the emission characteristics,including hydrocarbon(HC),carbon monoxide(CO),nitrogen oxide(NO),and smoke emissions,were acquired using the L16 orthogonal array(OA) and subsequently *** utilization of methodologies such as signal-to-noise(S/N) ratio and grey analysis was employed to determine the optimal operational state of the engine to achieve maximum performance while minimizing *** engine's ideal state of operation,in terms of BTE and BSFC,was determined to be at 75% engine load,1000 r/min engine speed,and using 10^(-4)(in vol) carbon nanotube incorporated 20% orange peel biodiesel(OPB20CNT100) blended fuel(A3-B1-C4).The study indicated that engine load significantly influenced BTE and BSFC,with 84.05% and 87.79% contribution factors,*** 25% engine load,1000 r/min,and OPB20CNT100 fuel(A1-B1-C4) CO,smoke,NO,and HC emissions were the *** load affects emissions the *** BSFC increased 3.10% and NO emissions 1.77%.BTE,CO,smoke,and HC emissions decreased by 1.9%,12.29%,47.05%,and 47.22%,respectively,at optimal operating conditions concerning diesel *** study shows that Taguchi-Grey's experimental design optimizes diesel engine operational and pollutant *** outcomes revealed that orange peel biodiesel infused with CNT can replace diesel fuel in a

关键词： Taguchi-Grey method OPB20CNT100 transesterification S/N ratio GrG HC CO and NO

Endodontic irrigants from a comprehensive perspective

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World Journal of Clinical Cases 2024年第21期12卷 4460-4468页

作者： rayana Duarte khoury Lara Steffany de Carvalho Mauro Felipe rios do Nascimento Fadi Alhussain AmjadAbu Hasna Department of restorative Dentistry Endodontics DivisionInstitute of Science and TechnologySão Paulo State UniversitySão Josédos Campos 12245000SPBrazil Department of Biosciences and Oral Diagnosis Institute of Science and TechnologySão Paulo State UniversitySão Josédos Campos 12245000SPBrazil School of Dentistry The National Institute of Higher Education and Postgraduate Studies Padre Gervásio-INAPÓSPouso Alegre 37550-121MGBrazil School of Dentistry Syrian Private UniversityAl Kiswah 877C+P2DamascusSyria School of Dentistry Universidad Espíritu SantoSamborondón 092301Ecuador

This review article explores the fundamental principles of modern endodontics with a focus on root canal cleaning and *** reviews commonly used endodontic irrigant,namely sodium hypochlorite(NaOCl),herbal extracts,chlorhexidine(CHX),and chelating agents,highlighting their properties,applications,and potential ***,a key antimicrobial agent,demonstrates effectiveness against various microorganisms but poses challenges such as high *** extracts,gaining recognition in endodontics,present an alternative with potential advantages in preserving dentin ***,known for its broad-spectrum antimicrobial activity,is discussed in both liquid and gel formulations,emphasizing its role in reducing smear layer formation and preserving hybrid layer *** agents,specifically ethylenediaminetetraacetic acid and citric acid,play a vital role in removing the smear layer,enhancing dentin permeability,and facilitating the penetration of antimicrobial *** review article underscores the importance of careful application and consideration of each irrigant's properties to ensure safe and effective endodontic *** serves as a valuable guide for clinicians in selecting appropriate irrigants based on specific treatment requirements.

关键词： root canal irrigants Sodium hypochlorite Chlorhexidine Chelating agents Plant extracts

Multidimensional images and aberrations in STEM

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Chinese Physics B 2024年第9期33卷 68-74页

作者： Eric r.Hoglund Andrew r.Lupini Center for Nanophase Materials Sciences Oak Ridge National LaboratoryOak RidgeTN 37831United States

recent advances in scanning transmission electron microscopy(STEM)have led to increased development of multidimensional STEM imaging modalities and novel image reconstruction *** interest arises because the main electron lens in a modern transmission electron microscope usually has a diffraction-space information limit that is significantly better than the real-space resolution of the same *** state-of-affairs is sometimes shared by other scattering methods in modern physics and contributes to a broader excitement surrounding multidimensional techniques that scan a probe while recording diffraction-space images,such as ptychography and scanning nano-beam ***,the contrasting resolution in the two spaces raises the question as to what is limiting their effective ***,we examine this paradox by considering the effects of aberrations in both image and diffraction planes,and likewise separate the contributions of pre-and post-sample *** consideration provides insight into aberration-measurement techniques and might also indicate improvements for super-resolution techniques.

关键词： scanning transmission electron microscopy (STEM) aberrations

Kinematic analysis of flexible bipedal robotic systems

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Applied Mathematics and Mechanics(English Edition) 2024年第5期45卷 795-818页

作者： r.FAZEL A.M.SHAFEI S.r.NEKOO Department of Mechanical Engineering Shahid Bahonar University of KermanKerman ***Iran Departamento de Ingenieria de Sistemas y Automatica Escuela Técnica Superior de IngenieriaUniversidad de SevillaSeville 41092Spain

In spite of its intrinsic complexities,the passive gait of bipedal robots on a sloping ramp is a subject of interest for numerous *** distinguishes the present research from similar works is the consideration of flexibility in the constituent links of this type of robotic *** is not a far-fetched assumption because in the transient(impact)phase,due to the impulsive forces which are applied to the system,the likelihood of exciting the vibration modes increases ***,the human leg bones that are involved in walking are supported by viscoelastic muscles and ***,for achieving more exact results,it is essential to model the robot links with viscoelastic *** this end,the Gibbs-Appell formulation and Newton's kinematic impact law are used to derive the most general form of the system's dynamic equations in the swing and transient phases of *** most important issue in the passive walking motion of bipedal robots is the determination of the initial robot configuration with which the system could accomplish a periodic and stable gait solely under the effect of gravitational *** extremely unstable nature of the system studied in this paper and the vibrations caused by the impulsive forces induced by the impact of robot feet with the inclined surface are some of the very serious challenges encountered for achieving the above-mentioned *** overcome such challenges,an innovative method that uses a combination of the linearized equations of motion in the swing phase and the algebraic motion equations in the transition phase is presented in this paper to obtain an eigenvalue *** solving this problem,the suitable initial conditions that are necessary for the passive gait of this bipedal robot on a sloping surface are *** effects of the characteristic parameters of elastic links including the modulus of elasticity and the Kelvin-Voigt coefficient on the walking stability of this type of

关键词： bipedal robot flexible link swing phase transient phase eigenvalue problem Kelvin-Voigt coefficient

Holographic dark energy in non-conserved gravity theory

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Communications in Theoretical Physics 2024年第4期76卷 126-133页

作者： H r Fazlollahi Institute of Gravitation and Cosmology Peoples Friendship University of Russia(RUDN University)6 Miklukho-Maklaya StMoscow117198Russia

recently, reconsidering the rastall idea T_(μ;νν)^(v)=α_(,μ) through relativistic thermodynamics gives a new form for the scalar field α which led us to construct modern modified theory of gravity debugged ‘non-conserved gravity theory’ Fazlollahi 2023 Euro. Phys. J. C 83 923. This theory unlike other modified theories of gravity cannot directly explain the current acceleration expansion in the absence of the cosmological constant and or existence of other forms of dark energy. Hence, in this study we have reinvestigated holographic dark energy Ρ_(X)~H^(2) in the non-conserved theory of gravity. In this context, the density and pressure of dark energy depend on the non-conserved term and density of the dust matter field. As shown, due to non-conservation effects on large-scale structures, unlike the original holographic model, our model onsets an acceleration epoch for the current Universe satisfies observations. Moreover, the interaction and viscous scenarios are studied for this model.

关键词： non-conserved gravity covariant form of thermodynamics holographic dark energy