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Journal of Wuhan University of Technology(Materials Science) 2024年第1期39卷 182-187页

作者： ÇELİK Erçevik ATA ESENER Pınar öz.ürk.esra AKSÖz.Sez.n Nevşehir HacıBektaşVeli University Department of Physics50300NevşehirTurkey Erciyes University Graduate School of Natural and Applied Sciences38039KayseriTurkey Kocaeli University Department of Physics41380KocaeliTurkey

Ag-In intermetallic alloys were produced by using vacuum arc furnace. Differential Scanning Calorimetry(DSC) and Energy Dispersive X-Ray Spectrometry(EDX) were used to determine the thermal properties and chemical composition of the phases respectively. Microhardness values of Ag-In intermetallics were calculated with Vickers hardness measurement method. According to the experimental results, Ag-34 wt%In intermetallic system generated the best results of energy saving and storage compared to other intermetallic systems. Also from the microhardness results, it was observed that intermetallic alloys were harder than pure silver and Ag-26 wt%In system had the highest microhardness value with 143.45 kg/mm^(2).

关键词： thermal properties microstructure characteriz.tion microhardness alloys material characteriz.tion

Changes in Calcareous Nannofossil Assemblages and Paleoenvironmental Interpretation of the Early Miocene Lice Formation, Kahramanmara? Basin, Turkey, East Mediterranean

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Acta Geologica Sinica(English Edition) 2024年第4期98卷 1021-1034页

作者： Caner KAYAÖz.R Muaz.z.esra ORHAN Uğur TEMİz Yoz.at Boz.k University DivanlıRoadYozgat 66900Turkey

This study investigated the calcareous nannofossil assemblages in detail from the early Miocene aged Lice Formation outcropping in the Kahramanmara? basin. The biostratigraphy of calcareous nannofossils was outlined and paleoenvironmental features determined. In 81 samples taken from three measured sections in the region, 17 calcareous nannofossil genus and 48 nannofossil species were identified. These calcareous nannofossil genus and species identified the Lice Formation as being in the CNM4 nannofossil bioz.ne. The abundance and diversity of early Miocene calcareous nannofossil species varied in the measured sections, with the samples generally moderate-poor, apart from a few samples. The relative abundance of individuals of Cyclicargolithus floridanus, Coccolithus pelagicus, Reticulofenestra hagii and Sphenolithus moriformis species, with paleoecological importance identified in the study region, indicate that in early Miocene times, the basin in which the Lice Formation deposited was meso-eutrophic with excess nutrient input, temperate and generally stable shallow marine conditions.

关键词： paleoecology nannofossil Burdigalian East Mediterranean

Projectively Ricci-flat General(α,β)-metrics

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Acta Mathematica Sinica,English Series 2024年第6期40卷 1409-1419页

作者： esra Sengelen SEVIM Department of Mathematics Istanbul Bilgi University34060Eski Silahtaraga Elektrik SantraliKazim Karabekir Cad.No:2/13 EyupsultanIstanbulTurkey

In this paper,we study the projectively Ricci-flat general(α,β)-metrics within to a spray framework and also bring out the rich variety of behaviour displayed by an important projective *** Ricci curvature is one of the essential projective invariant in Finsler geometry which has been introduced by *** projective Ricci curvature is defined as Ricci curvature of a projective spray associated with a given spray G on M^(n) with a volume form dV on M^(n).

关键词： Finsler metrics general(α β)-metrics projective Ricci curvature

Numerical Study of Flow Features Around Submerged Circular and Square Piles at Flat and Scoured Beds Using OpenFOAM

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Journal of Ocean University of China 2024年第4期23卷 897-914页

作者： WANG Chaolin WU Guoxiang WANG Dianhe DU Shengtao z.ANG z.iyong JIN Heng z.U David z. LIANG Bingchen Donghai Academy School of Civil&Environmental Engineering and Geography ScienceNingbo UniversityNingbo 315211China Key Laboratory of Estuary and Coast of z.ejiang Province and Zhejiang Institute of Hydraulics and EstuaryHangzhou 310020China Shandong Provincial Key Laboratory of Ocean Engineering and College of EngineeringOcean University of ChinaQingdao 266100China Shandong Water Conservancy Vocational College Rizhao 276826China School of Mechanical and Energy Engineering Ningbotech UniversityNingbo 315211China

Elucidating the flow features around piles in local scouring processes is crucial for studies of local scouring mechanisms and scour depth *** study details the flow turbulence characteristics of two submerged piles that are determined by solving the Navier-Stokes equations with the improved delayed detached eddy simulation *** model is verified by comparing experimental and numerical results for hydrodynamic parameters with the literature for both square-crossing piles(SCPs)and circular-crossing piles(CCPs).Original topographies of flat and scoured beds(i.e.,the initial and equilibrium scouring stages)are based on experimental results obtained by the authors in the present *** and CCP flow features in the scouring process are *** results indicate that during the scouring process,the time-averaged drag coefficient and root mean square(rms)of the lift coefficient increase linearly in the CCP test,while the rms of the lift coefficient in the SCP test decreases ***,the minimum pressure coefficient is always located in the upstream corners in the SCP case but moves from 72.5°to 79.5°when the scour hole is completely developed in the CCP *** flow behind the pile,which is generated by separated boundary layers above the top face of the pile,can reach the sand bed and turn the separated shear layers into patches of small vortices in the near-wake ***,the high shear stress z.nes are mainly at the scour edges under scoured-bed conditions.

关键词： flat bed scoured bed local scour OpenFOAM bed shear stress

Indication and surgical approach for reconstruction with endoprosthesis in bone-associated soft tissue sarcomas:Appropriate case management is vital

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World Journal of Clinical Cases 2024年第12期12卷 2004-2008页

作者： RecepÖz.ürk Tumororthopädie und Sarkomchirurgie Universitätsklinikum EssenEssen 45143Germany

It is important for surgeons performing sarcoma surgery to know that bone resection and tumor prosthesis applications in soft tissue sarcomas(STS)have unique features in terms of indication,surgical approach and follow-up,in terms of the management of these *** STS are associated with bone and major neurovascular ***-associated STS are generally relatively large and relatively ***,the tendency for metastasis is *** some cases,the decision about which structures to resect is *** cases are often accompanied by poor oncological and surgical *** of cases should be done by a multidisciplinary team in advanced centers specializ.d in this *** surgical team must have sufficient knowledge and experience in the field of limb-sparing *** evaluation and especially good planning of bone and soft tissue reconstruction are vital.

关键词： Soft tissue sarcoma Bone invasion Bone resection Endoprosthesis replacement Prosthesis Limb salvage Indication Approach

Climate Changes and Sustainability

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Open Journal of Ecology 2024年第1期14卷 17-53页

作者： Kholoud z. Ghanem Department of Biological Science College of Science & Humanities Shaqra University Riyadh Saudi Arabia

Climate change is the phrase used to describe long-term changes in temperatures and weather patterns. Changes in the atmosphere and their interactions with diverse geologic, chemical, biological, and geographic variables are the main contributors to this cyclical adjustment of the Earth’s climate. Such changes may be induced purposefully, because of burning fossil fuels, clearing forests, and raising animals, or they may be natural, brought on by significant volcanic eruptions or variations in the sun’s activity. By significantly increasing the amount of greenhouse gases already in the atmosphere, this heightens the greenhouse effect and contributes to global warming. This work includes several additional theoretical and practical explanations of sustainable development. The theoretical work encompasses hundreds of researches that identify requirements for how development routes might satisfy sustainable development (SD) criteria using economic theory, complex systems approach, ecological science, and other techniques. The agreements made by the Parties in various nations across the world will consider a wide range of perspectives about what would be considered undesirable effects on the environment, the climate system, sustainability, economic growth, or food production.

关键词： Earth System Ancient Climatic Changes Causes of Climatic Changes Ecological Risk Assessment Ecosystem Abrupt Climate Change of Earth Sustainability

Expandable endoprostheses in skeletally immature patients:Where we are

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World Journal of Orthopedics 2024年第4期15卷 312-317页

作者： RecepÖz.ürk Tumororthopädie und Sarkomchirurgie Universitätsklinikum EssenEssen 45143Germany

Approximately 45 percent of malignant bone tumors are seen under the age of 16 and one of the important results of growth plate sacrification in patients with immature skeletons is limb *** the early 1990s,the treatment options for these patients were rotationplasty or *** approaches that combine imaging,chemotherapy,and surgical techniques have enabled the development of limb-preserving methods with satisfactory *** order to overcome inequality problems,expandable prostheses have been developed in the *** endoprosthesis replacements have been improved over the years and are now an established and safe *** prostheses appear to be advantageous compared to minimally invasive expandable prostheses that require multiple surgical procedures,but the complication rate remains ***,although expandable prostheses are not the definitive answer to the treatment of bone sarcomas in skeletally immature children,they are still a suitable interim choice until full adulthood is *** to reported high complication rates,the procedures require significant experience and are recommended for use only in specializ.d cancer centers.

关键词： Bone sarcoma Expandable endoprostheses Limb salvage surgery Noninvasive Minimal-invasive Invasive Extendible endoprostheses

Late corneal ectasia after penetrating and deep anterior lamellar keratoplasty for keratoconus

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International Journal of Ophthalmology(English edition) 2024年第10期17卷 1828-1836页

作者： Bora Yüksel Arife esra Kocakaya Tuncay Küsbeci Fatih Gümüş Department of Ophthalmology University of Health SciencesIzmir Bozyaka Education and Research HospitalIzmir 35110Türkiye

AIM:To investigate tomographic features of late corneal ectasia after keratoplasty for keratoconus and compare penetrating keratoplasty(PK)and deep anterior lamellar keratoplasty(DALK)in terms of incidence,time of onset and risk factors of corneal ***:Sixty eyes with PK and 30 eyes with DALK operated between 1999 and 2021 were *** Pentacam scans were evaluated together with vision and previous *** outcome measures were vision,K values,apparent thinning on graft-host cornea and the difference between opposing quadrants in the thinnest point *** segment optic coherence tomography was performed for further ***:Mean follow-up was 127.2mo(24–282mo)in PK,and 64.3mo(24–144mo)in DALK.K max was higher in DALK(60.6 vs 56.7 D,P=0.012).Inferior recipient was thinner(595.9μm)in PK than DALK(662.2μm,P=0.021),due to longer *** corneal ectasia rate was 20.0%within *** rate was the same(6.7%)in DALK 2/30 and in PK 4/60 in 10y and 13.3%in 12y(4/30 and 8/60,respectively).It increased to 23.3%(14/60)in PK over *** ectasia was not seen before 7y in PK,it could be seen in DALK starting from the 5^(th) *** intervals between keratoplasty and ectasia were 144.5mo in PK and 99mo in *** recipient was significantly thinner in 18 eyes with ectasia(502.7μm)compared to 76 non-ectasia(649.1μm,P=0.000).Inferior graft was thinner(561.0 vs 620.4μm,P=0.006),K max(63.3 vs 56.5 D,P=0.000),and anterior elevation was higher in ectasia(89.1 vs 48.6μm,P=0.002).Accelerated crosslinking was performed on 5 ***:Inferior-superior recipient and inferior graft thinning on tomography,with high K max and anterior elevation emerge as the most reliable criteria for the diagnosis of late *** incidence of corneal ectasia increases with the time.

关键词： keratoconus penetrating keratoplasty deep anterior lamellar keratoplasty corneal ectasia

Retrograde cricopharyngeal dysfunction(R-CPD):What do we know so far?

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World Journal of Otorhinolaryngology-Head and Neck Surgery 2024年第3期10卷 231-236页

作者： Fahad z.Alotaibi Department of Otolaryngology–Head and Neck Surgery Imam Mohammad Ibn Saud Islamic UniversityRiyadhSaudi Arabia

Objective:This comprehensive review aims to explain the disease pathophysiology,clinical presentation,and management ***:A review was carried out in the following databases:Medline,Scopus,Web of Science,and *** following terms were used alone and combined:Retrograde,Cricopharyngeus muscle,Dysfunction,Abelchia,and inability to ***:A total of 68 articles were identified,and only 11 were found to be relevant and included in writing this *** cricopharyngeal dysfunction(R-CPD)is a relatively new disease entity that has recently been described in clinical *** is caused by the inability of the cricopharyngeus muscle to *** cricopharyngeal dysfunction(CPD),which is well-known and characteriz.d by dysphagia,R-CPD is characteriz.d by the inability to belch in almost all patients,which is considered diagnostic for the ***:High-resolution manometry(HRM)is the definitive diagnostic *** patients reported in the literature responded well to treatment with botulinum toxin injection.

关键词： botulinum toxin cricopharyngeal dysfunction pharyngoesophageal segment R-CPD retrograde

Rituximab Induced Vasculitis: Dose the Antigen-Antibody Complex of Rituximab Play a Role in Developing Leukocytoclastic Vasculitis?—A Case Report and Review of the Literature

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Journal of Biosciences and Medicines 2024年第9期12卷 89-94页

作者： Ahmed A. AlTaroti z.hra z. Alz.hir Salah Abohelaika Department of Internal Medicine Qatif Central Hospital Qatif Saudi Arabia Research Centre Qatif Central Hospital Qatif Saudi Arabia

Rituximab is a monoclonal antibody that targets CD20, which is a specific B-cell surface antigen. It was the first monoclonal antibody that was approved for the treatment of non-Hodgkin lymphoma, rheumatoid arthritis, and other cutaneous lymphoid malignancies. There are many off-label uses of rituximab, such as systemic lupus erythematosus, autoimmune hemolytic anemia, multiple sclerosis, graft-versus-host disease, chronic lymphocytic leukemia, and chronic immune-mediated thrombocytopenia. Among the rare side effects associated with rituximab treatment is vasculitis, more specifically, leukocytoclastic vasculitis. Here, we describe a 21-year-old Saudi female with leukocytoclastic vasculitis occurring three months after treatment with rituximab.

关键词： Rheumatoid Arthritis Rituximab Vasculitis Leukocytoclastic Vasculitis