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Investigation of contact behavior on a model of the dual-mobility artificial hip joint for Asians in different inner liner thicknesses

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World Journal of Orthopedics 2024年第4期15卷 321-336页

作者： Taufiq Hidayat Muhammad Imam Ammarullah Rifky ismail Eko Saputra M Danny Pratama Lamura Chethan K N Athanasius Priharyoto Bayuseno J Jamari Department of Mechanical Engineering Universitas Muria KudusKudus 59352Central JavaIndonesia Department of Mechanical Engineering Universitas DiponegoroSemarang 50275Central JavaIndonesia Undip Biomechanics Engineering&Research Centre Universitas DiponegoroSemarang 50275Central JavaIndonesia Center for Biomechanics Biomaterials Biomechatronics and Biosignal Processing Universitas DiponegoroSemarang 50275Central JavaIndonesia Department of Mechanical Engineering Politeknik Negeri SemarangSemarang 50275Central JavaIndonesia Department of Aeronautical and Automobile Engineering Manipal Institute of TechnologyManipalManipal Academy of Higher EducationManipal 576104KarnatakaIndia

BACKGROUND The four components that make up the current dual-mobility artificial hip joint design are the femoral head,the inner liner,the outer liner as a metal cover to prevent wear,and the acetabular *** acetabular cup and the outer liner were constructed of 316L stainless *** the same time,the inner liner was made of ultra-high-molecular-weight polyethylene(UHMWPE).As this new dual-mobility artificial hip joint has not been researched extensively,more tribological research is needed to predict *** thickness of the inner liner is a significant component to consider when calculating the contact *** To make use of finite element analysis to gain a better understanding of the contact behavior in various inner liner thicknesses on a new model of a dual-mobility artificial hip joint,with the ultimate objective of determining the inner liner thickness that was most suitable for this particular type of dual-mobility artificial hip *** In this study,the size of the femoral head was compared between two diameters(28 mm and 36 mm)and eight inner liner thicknesses ranging from 5 mm to 12 *** the finite element method,the contact parameters,including the maximum contact pressure and contact area,have been evaluated in light of the Hertzian contact *** simulation was performed statically with dissipated energy and asymmetric *** types of interaction were surface-to-surface contact and normal contact *** The maximum contact pressures in the inner liner(UHMWPE)at a head diameter of 28 mm and 36 mm are between 3.7-13.5 MPa and 2.7-10.4 MPa,*** maximum von Mises of the inner liner,outer liner,and acetabular cup are 2.4–11.4 MPa,15.7–44.3 MPa,and 3.7–12.6 MPa,respectively,for 28 mm *** the maximum von Mises stresses of the 36 mm head are 1.9-8.9 MPa for the inner liner,9.9-32.8 MPa for the outer liner,and 2.6-9.9 MPa for the acetabular cup.A head with a diameter of 28 mm should have an inner line

关键词： Contact behavior Contact pressure Finite element analysis Dual-mobility Artificial hip joint

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Overview of Jute Fibre as Thermoplastic Matrix Polymer Reinforcement

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Journal of Renewable Materials 2024年第3期12卷 457-483页

作者： Tezara Cionita Mohammad Hazim Mohamad Hamdan Januar Parlaungan Siregar Deni Fajar Fitriyana Ramli Junid Wong Ling Shing Jamiluddin Jaafar Agustinus Purna Irawan Teuku Rihayat Rifky ismail Athanasius Priharyoto Bayuseno Emilianus Jehadus Faculty of Engineering and Quantity Surveying INTI International UniversityNilaiNegeri Sembilan71800Malaysia Technical Department Dyna Forming Engineering Technology(DFETECH)SDN.BHD.SerembanNegeri Sembilan70300Malaysia Faculty of Mechanical and Automotive Engineering Technology UniversitiMalaysia Pahang Al-Sultan Abdullah(UMPSA)PekanPahang26600Malaysia Automotive Engineering Center(AEC) UniversitiMalaysia Pahang Al-Sultan Abdullah(UMPSA)PekanPahang26600Malaysia Department of Mechanical Engineering Universitas Negeri SemarangKampus SekaranGunungpatiSemarang50229Indonesia Faculty of Manufacturing and Mechatronic Engineering Technology Universiti Malaysia Pahang Al-Sultan AbdullahPekanPahang26600Malaysia Faculty of Health and Life Sciences INTI International UniversityNilai71800Malaysia Faculty of Mechanical and Manufacturing Engineering Universiti Tun Hussein Onn MalaysiaParit RajaBatu PahatJohor86400Malaysia Faculty of Engineering Universitas TarumanagaraJakarta Barat11440Indonesia Department of Chemical Engineering Politeknik Negeri LhokseumaweLhokseumawe24301Indonesia Department of Mechanical Engineering Faculty of EngineeringDiponegoro UniversitySemarang50275Indonesia Department of Mathematics Education Universitas Katolik Indonesia Santu Paulus RutengNusa Tenggara Timur8651Indonesia

Recent decades have seen a substantial increase in interest in research on natural fibres that is aligned with sustainable development goals(SDGs).Due to their renewable resources and biodegradability,natural fiberreinforced composites have been investigated as a sustainable alternative to synthetic materials to reduce the usage of hazardous waste and environmental *** the natural fibre,jute fibre obtained from a bast plant has an increasing trend in the application,especially as a reinforcement *** research works have been performed on jute fibre with regard to reinforced thermoset and thermoplastic ***,current demands on sustainable materials have required new developments in thermoplastic *** this paper,the author reviews jute plants as reinforcement materials for thermoplastic matrix *** review provides an overview of the sustainability of jute plants as reinforcement material for thermoplastic matrix *** overview on jute based thermoplastic composites focused on the thermal behavior and mechanical *** from physical,chemical,and mechanical properties,the study also covers the current and perspectives for future research challenges faced by the researchers on jute fibre reinforced thermoplastic composites.

关键词： Jute fibre sustainable development goals(SDGs) natural fibre thermoplastic composite sustainable manufacturing

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Beyond the Usual Suspects (Aortic Dissection in Patients with Chronic Kidney Disease)

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International Journal of Clinical Medicine 2024年第9期15卷 436-442页

作者： Marwa Morgom Shazad Anjum Sujood Musa Awadelseed Hanan Nayef Alajard Yageen ismail Bakhiet Emergency Medicine Hamad General Hospital Doha Qatar

A comprehensive differential diagnosis is essential in the emergency department, even when patient presentations are atypical. Timely recognition of life-threatening conditions, such as aortic dissection, hinges on th... 详细信息

关键词： Chest Discomfort Atypical Presentation of Aortic Dissection Differential Diagnosis Acute Type A Aortic Dissection Aortic Dissection Diagnosis

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Retinoscopes:Past and present

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World Journal of Methodology 2024年第3期14卷 126-140页

作者： Mutali Musa Ehimare Enaholo Babatunde ismail Bale Carlo Salati Leopoldo Spadea Marco Zeppieri Department of Optometry University of BeninBenin 300283Nigeria Department of Ophthalmology Africa Eye Laser CentreBenin 300105Nigeria Department of Ophthalmology Centre for Sight AfricaNkpor 434101Nigeria Department of Ophthalmology University Hospital of UdineUdine 33100Italy Eye Clinic Policlinico Umberto I"Sapienza"University of RomeRome 00142Italy

BACKGROUND Retinoscopy is arguably the most important method in the eye clinic for diagnosing and managing refractive *** of retinoscopy include its noninvasive nature,ability to assess patients of all ages,and usefulness in patients with limited cooperation or communication *** To discuss the history of retinoscopes and examine current literature on the *** A search was conducted on the PubMed and with the reference citation analysis(https://***)database using the term"Retinoscopy,"with a range restricted to the last 10 years(2013-2023).The search string algorithm was:"Retinoscopy"(MeSH Terms)OR"Retinoscopy"(All Fields)OR"Retinoscopes"(All Fields)AND[(All Fields)AND 2013:2023(pdat)].RESULTS This systematic review included a total of 286 *** reviewed iterations of the retinoscope into autorefractors,infrared photo retinoscope,television retinoscopy,and the Wifi enabled digital *** The retinoscope has evolved significantly since its discovery,with a significant improvement in its diagnostic *** it has advantages such as non-invasiveness and broad applicability,limitations exist,and the need for skilled interpretation *** ongoing research,including the integration of artificial intelligence,retinoscopy is expected to continue advancing and playing a vital role in eye care.

关键词： Retinoscopy Autorefractor Refractive errors Ophthalmology Optics Artificial intelligence

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Design and Implementation of Hand Gesture Detection System Using HM Model for Sign Language Recognition Development

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Journal of Data Analysis and Information Processing 2024年第2期12卷 139-150页

作者： Sharmin Akter Milu Azmath Fathima Tanmay Talukder Inzamamul Islam Md. ismail Siddiqi Emon Department of Computer Science & Telecommunication Engineering (CSTE) Noakhali Science & Technology University Noakhali Bangladesh School of Computer Mathematical & Natural Sciences (SCMNS) Morgan State University Baltimore MD USA Department of Physics Morgan State University Baltimore MD USA Department of ECE Morgan State University Baltimore MD USA Department of Computer Science Morgan State University Baltimore MD USA

Gesture detection is the primary and most significant step for sign language detection and sign language is the communication medium for people with speaking and hearing disabilities. This paper presents a novel method for dynamic hand gesture detection using Hidden Markov Models (HMMs) where we detect different English alphabet letters by tracing hand movements. The process involves skin color-based segmentation for hand isolation in video frames, followed by morphological operations to enhance image trajectories. Our system employs hand tracking and trajectory smoothing techniques, such as the Kalman filter, to monitor hand movements and refine gesture paths. Quantized sequences are then analyzed using the Baum-Welch Re-estimation Algorithm, an HMM-based approach. A maximum likelihood classifier is used to identify the most probable letter from the test sequences. Our method demonstrates significant improvements over traditional recognition techniques in real-time, automatic hand gesture recognition, particularly in its ability to distinguish complex gestures. The experimental results confirm the effectiveness of our approach in enhancing gesture-based sign language detection to alleviate the barrier between the deaf and hard-of-hearing community and general people.

关键词： Hand Gesture Recognition System

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葵花籽粕绿原酸脱除及其蛋白应用研究进展

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食品科学 2024年第18期45卷 290-298页

作者：李振源黄雪港崔颢凡顾丰颖马萨日娜 Karim GAFUROV ismail ISABAEV Dilshoda SAFARAVA 郭芹王强中国农业科学院农产品加工研究所农业农村部农产品加工综合性重点实验室北京100193 布哈拉工程技术研究院乌兹别克斯坦布哈拉200100

葵花籽粕是葵花籽制油的副产物,其蛋白质营养丰富、氨基酸组成合理且致敏性低,是一种优质的蛋白原料。目前关于葵花籽粕的相关综述主要集中在其加工应用现状、综合利用、活性成分、改性技术和饲料领域应用等。然而,葵花籽粕中多酚类物质... 详细信息

葵花籽粕是葵花籽制油的副产物,其蛋白质营养丰富、氨基酸组成合理且致敏性低,是一种优质的蛋白原料。目前关于葵花籽粕的相关综述主要集中在其加工应用现状、综合利用、活性成分、改性技术和饲料领域应用等。然而,葵花籽粕中多酚类物质(主要为绿原酸)的存在导致葵花籽蛋白粉在制备和加工过程易发生褐变,严重制约其深度开发利用。对葵花籽粕绿原酸的提取脱除技术主要有水提法、有机溶剂浸提法、物理场辅助法、生物酶法、盐抑制法及树脂吸附脱色等,但目前鲜见系统总结。本文从葵花籽蛋白组成特性、其与绿原酸互作机制、葵花籽粕绿原酸提取脱除方法以及葵花籽蛋白在食品领域应用等方面综述最新研究进展,以期为葵花籽粕的深度加工利用提供参考。

关键词：葵花籽粕蛋白绿原酸脱除方法应用

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Use of Topical Complementary and Alternative Medicines (CAM) in Diabetic Septic Foot Disease in Makkah Region, Western of Saudi Arabia, an Exploratory Study

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Journal of Biosciences and Medicines 2024年第3期12卷 245-258页

作者： Mohamed Elamin Salih Hatim Alrizqi Mohammed Hussain Abdullah Alshumrani ismail Alhasani Ali Alkhamisi Hamzah Alsayed Fahad Alqarni Department of Surgery Faculty of Medicine University of Umm AlQura Mecca Saudi Arabia Faculty of Medicine University of Umm AlQura Mecca Saudi Arabia

Diabetes is a chronic condition that is significantly impacted daily by environment. At least one in five Saudis, suffer from diabetes. “Diabetes is a pandemic of unprecedented magnitude spiraling out of control” (Boulton). Saudi Arabia ranks the second highest in the Middle East, and is the seventh in the world for the prevalence of diabetes (WHO). Diabetes mellitus (DM) has been found to be related to high mortality, morbidity accompanied by poor general health and lower quality of life. Current Saudi diabetes patients’ behaviors, practices, and beliefs regarding foot health problems such as ulcers, are not well investigated. Diabetic patients frequently utilize natural remedies and Herbs for self-medication as a part of complementary and alternative Medicine. Aim of study: To explore the widespread use of the alternative remedies in the local communities of the Western Saudi Arabia, the drives behind using and to focus on the potential adverse effects following their usage. Method: A descriptive, cross-sectional study of 386 diabetic patients with feet problems in Makkah Region, West of Saudi Arabia during the period April - June 2023. Results: Out of the 531 participants, only 386 participants reported diabetic foot disorder (DFD). Most of the participant were above 65 years of age group (24.61 %). Male (52.08%) more than female (47.92%) in the research group. All of the participants had diabetic foot disorders at least once. The prevalence of complementary and alternative medicines (CAM) use among them was 67.88%, as solitary or in combination with hospital medicines. Honey headed the list followed by myrrh and black seeds. Acquaintances advice (59.54%) was the most reason for using the alternative medicine. 60.30% of Diabetic foot patient complained of adverse effects during CAM remedies use. Conclusion: Consumption of CAM remedies among diabetic patients for Diabetic Foot Disorder (DFD) is common. Honey headed the list followed by myrrh and black seeds. Addit

关键词： Diabetic Foot Ulcer Diabetes Complementary and Alternative Medicine CAM West of Saudi Arabia

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A Cross-Sectional Study on the Impact of Operation Triple Zero (OTZ) Program on Viral Load Suppression amongst Members of the Adolescent Club in 68 Nigerian Army Reference Hospital Yaba Lagos, Nigeria

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World Journal of AIDS 2024年第2期14卷 35-44页

作者： Nkechinyere Harrison ismail Lawal Yakubu Adamu Kehinde Aribisala Adegbenga Olarinoye Uzoamaka Agbaim Funmilayo Owolabi Dooshima Okonkwo Laura Chittenden Nathan Okeji Centre for Infectious Disease Clinic 68 Nigerian Army Reference Hospital Lagos Nigeria United States Army Medical Research Directorate-Africa Abuja Nigeria Henry Jackson Foundation Medical Research International LTD/GTE Abuja Nigeria Nigerian Ministry of Defence Health Implementation Program Abuja Nigeria

Background: In Nigeria, adolescents and young people (AYP) aged 10 - 24, comprise 22.3% of the population and with HIV prevalence of 3.5%. The AYP living with HIV enrolled at the 68 NARHY, Lagos reflects the national challenges with poor viral suppression. The OTZ program aligns with the UNAIDS 95-95-95 goals. It seeks to empower AYPLHIV to be in charge of their treatment and commit to triple zero outcomeszero missed appointments, zero missed drugs, and zero viral loads. The purpose of the study was to assess the impact of the OTZ program on viral load suppression among members of the adolescent club in 68 NARHY, Lagos. Method: A cross-sectional retrospective study to evaluate the impact of the OTZ program on the viral load of 53 AYP enrolled in the OTZ program between March 2019 to December 2019 was analyzed. The Percentage of viral load suppression before enrollment compared with 6 and 12 months after enrollment into the OTZ program. The AYP is grouped into 10 - 14, 15 - 19, and 20 - 24 years. Activities conducted were peer driven monthly meetings with the AYP during which the adolescents interacted on issues relating to improving their treatment outcomes, healthcare workers reviewed their clinical status, viral load result, provider peer counseling, and caregivers engagement to support adherence to medication and ARV refills. Results: Before OTZ, 81% aged 10 - 14 years, 75% aged 15 - 19 years, and 25% aged 20 - 24 years were virally suppressed (VL less than 1000 copies/ml). Six months after enrollment, 94% were virally suppressed95% aged 10 - 14 years, 96% aged 15 - 19 years, and 66% aged 20-24 years. Twelve months after enrollment, 96% of AYP were virally suppressed100% aged 10-14 years, 93% aged 15 - 19 years, and 100% aged 20 - 24 years. Males viral load (VL) suppression improved from 79% to 96% and 92%, while females VL suppression improved from 69% to 93% and 100% at 6 and 12 months respectively. Conclusion: The OTZ activities contributed to improved viral l

关键词： Impact Operation Triple Zero Adolescent Viral Load Nigeria

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Early clinical outcomes of two regimens of prophylactic antibiotics in cardiac surgical patients with delayed sternal closure

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World Journal of Critical Care Medicine 2024年第3期13卷 32-41页

作者： Mahmoud ismail Allam Eissa Rasha Kaddoura Danial Hassan Cornelia S Carr Samy Hanoura Yasser Shouman Abdulwahid Almulla Amr Salah Omar Department of Cardiothoracic Surgery Hamad Medical CooperationDoha 3050Qatar Department of Anesthesia and Intensive Care Al-Azhar UniversityCairo 11651Egypt Department of Pharmacy Heart HospitalHamad Medical CorporationDoha 3050Qatar Department of Healthcare Profession Harvard TH Chan School of Public HealthMinistry of Public HealthBostonMA 3050United States Department of Surgery Qatar UniversityDoha 3050Qatar Department of Cardiac Anesthesia Hamad Medical CorporationDoha 3050Qatar Department of Anesthesia Weill Cornell Medical College in QatarDoha 3050Qatar Department of Critical Care Medicine Beni Suef UniversityBeni Suef 62521Egypt Department of Medicine Weill Cornell Medical College in QatarDoha 3050Qatar

BACKGROUND Delayed sternal closure(DSC)can be a lifesaving approach for certain patients who have undergone cardiac *** value of the type of prophylactic antibiotics in DSC is still *** To investigate clinical outcomes of different prophylactic antibiotic regimens in patients who had DSC after cardiac *** This was a retrospective observational single-center ***-three consecutive patients who underwent cardiac surgery and had an indication for DSC were *** were subjected to two regimens of antibiotics:Narrow-spectrum and broad-spectrum *** The main outcome measures were length of hospital and intensive care unit(ICU)stay,duration of mechanical ventilation,and *** the 53 patients,12(22.6%)received narrow-spectrum antibiotics,and 41(77.4%)received broad-spectrum *** mean age was 59.0±12.1 years,without significant differences between the *** mean duration of antibiotic use was significantly longer in the broad-spectrum than the narrowspectrum group(11.9±8.7 vs 3.4±2.0 d,P<0.001).The median duration of open chest was 3.0(2.0-5.0)d for all patients,with no difference between groups(P=0.146).The median duration of mechanical ventilation was significantly longer in the broad-spectrum group[60.0(Δinterquartile range(IQR)170.0)h vs 50.0(ΔIQR 113.0)h,P=0.047].Similarly,the median length of stay for both ICU and hospital were significantly longer in the broadspectrum group[7.5(ΔIQR 10.0)d vs 5.0(ΔIQR 5.0)d,P=0.008]and[27.0(ΔIQR 30.0)d vs 19.0(ΔIQR 21.0)d,P=0.031].Five(9.8%)patients were readmitted to the ICU and 18(34.6%)patients died without a difference between *** Prophylactic broad-spectrum antibiotics did not improve clinical outcomes in patients with DSC post-cardiac surgery but was associated with longer ventilation duration,length of ICU and hospital stays vs narrow-spectrum antibiotics.

关键词： Cardiac surgery Delayed sternal closure Intensive care Open chest Prophylactic antibiotics

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Selenoprotein-p and insulin resistance in children and adolescents with obesity

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World Journal of Clinical Pediatrics 2024年第3期13卷 40-52页

作者： Amany Elbarky Kholoud Gamal ismail Yousef Fouad Yousef Rasha Mohamed Gamal Elshafiey Radwa Mahmoud Elsharaby Asmaa El-Kaffas Mohammed Al-Beltagi Gastroenterology and Clinical Nutrition Unit Pediatric DepartmentFaculty of MedicineTanta UniversityTanta 31511AlghrabiaEgypt Department of Pediatric Faculty of MedicineTanta UniversityTanta 31511AlghrabiaEgypt Department of Clinical Pathology Faculty of MedicineTanta UniversityTanta 31511AlghrabiaEgypt Department of Paediatric University Medical CenterKing Abdulla Medical CityArabian Gulf UniversityManama 26671ManamaBahrain

BACKGROUND Insulin resistance and obesity present significant challenges in pediatric *** P1(SEPP1)serves as a biomarker for assessing selenium levels in the *** its association with metabolic syndrome is established in adults,its relevance in children remains *** To ascertain SEPP1 blood levels in children and adolescents diagnosed with obesity and to assess its correlation with insulin resistance and adiposity *** 170 children participated in this study,including 85 diagnosed with obesity and an equal number of healthy counterparts matched for age and *** participant underwent a comprehensive medical evaluation,encompassing a detailed medical history,clinical examination,and anthropometric measurements like waist circumference and waist-to-height ***,routine blood tests were conducted,including serum SEPP1,visceral adiposity index(VAI),and Homeostatic Model Assessment of Insulin Resistance(HOMA-IR)*** Our findings revealed significantly lower serum SEPP1 levels in children with obesity compared to their healthy ***,notable negative correlations were observed between serum SEPP1 levels and body mass index,VAI,and *** The study suggests that SEPP1 could serve as a valuable predictor for insulin resistance among children and adolescents diagnosed with *** highlights the potential utility of SEPP1 in pediatric metabolic health assessment and warrants further investigation.

关键词： Obesity Childhood obesity Selenium status Selenoprotien P1 Insulin resistance

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