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Predictors of antenatal health service utilization among left-behind wives of male outmigrants:Evidence from Patna District,India

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亚太生殖杂志:英文版 2023年第5期12卷 220-228页

作者： fahad Afzal Arindam Das Research Wing-A IIHMR UniversityJaipurRajasthanIndia Institute of Health Management IIHMR UniversityJaipurRajasthanIndia

Objective:To analyze the sociological support system available for left-behind wives of male outmigrants and develop a model that predicts the antenatal care(ANC)services ***:A cross-sectional survey was conducted in rural regions of the Patna district,*** sample size(n=328)was estimated using Cochran’s *** parameters of the social support system were identified(autonomy,spousal support,family support,social circle support,and government support).The score for each was calculated as a composite score using multiple variables;these served as independent *** respondents were categorized as efficient and non-efficient users of ANC service based on established ***:The regression results showed that four out of five social parameters had a significant effect on ANC *** support was the strongest predictor(standardized regression coefficient β=0.57,OR 1.16,95%CI 1.08-1.79,P=0.007).Government support was found to be the second strongest predictor(β=0.40,OR 1.49,95%CI 1.04-2.14,P=0.027),followed by family support(β=0.31,OR 1.36,95%CI 1.23-2.57,P=0.034)and autonomy(β=0.11,OR 1.32,95%CI 1.11-2.26,P=0.030).The social circle support was found to be non-significant in predicting ANC behavior(P>0.05).Conclusions:The policymakers could focus on the identified predictors to strengthen and modify the existing policies for leftbehind wives of male *** need of the hour is a strategic intervention for behavioral modification of not only the left-behind wives but also their family members along with reinforcement of the existing social-security *** strategy we suggest is to launch an awareness campaign focusing on husbands(male outmigrants)and family members.

关键词： Antenatal health Reproductive behavior Antenatal care utilization South-East Asia Left-behind wife

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Fractional-Order Model of the Disease Psoriasis:A Control Based Mathematical Approach

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Journal of Systems Science & Complexity 2016年第6期29卷 1565-1584页

作者： CAO Xianbing DATTA Abhirup AL BASIR fahad ROY Priti Kumar College of Science Beijing Technology and Business University Centre for Mathematical Biology and Ecology Department of MathematicsJadavpur University

Autoimmune diseases are generated through irregular immune response of the human body. Psoriasis is one type of autoimmune chronic skin diseases that is differentiated by T-Cells mediated hyper-proliferation of epidermal Keratinocytes. Dendritic Cells and CD8＋ T-Cells have a significant role for the occurrence of this disease. In this paper, the authors have developed a mathematical model of Psoriasis involving CD4＋ T-Cells, Dendritic Ceils, CD8＋ T-Cells and Keratinocyte cell populations using the fractional differential equations with the effect of Cytokine release to observe the impact of memory on the cell-biological system. Using fractional calculus, the authors try to explore the suppressed memory, associated with the cell-biological system and to locate the position of Keratinocyte cell population as fractional derivative possess non-local property. Thus, the dynamics of Psoriasis can be predicted in a better way using fractional differential equations rather than its corresponding integer order model. Finally, the authors introduce drug into the system to obstruct the interaction between CD4＋ T-Cells and Keratinocytes to restrict the disease Psoriasis. The authors derive the Euler-Lagrange conditions for the optimality made through Matlab by developing iterative of the drug induced system. Numerical simulations are schemes.

关键词： Fractional differential equations (FDEs) memory optimal control problem pMHC Pso-riasis.

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Multifunctional characteristics of 3D printed polymer nanocomposites under monotonic and cyclic compression

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Defence Technology（防务技术） 2023年第12期30卷 13-22页

作者： Pawan Verma Jabir Ubaid fahad Alam Suleyman Deveci S.Kumar Department of Mechanical Engineering Khalifa University of Science and TechnologyMasdar InstituteMasdar CityP.O.Box 54224Abu DhabiUnited Arab Emirates Borouge Pte.Ltd. Innovation CentreSas Al Nakhl6951Abu DhabiUnited Arab Emirates James Watt School of Engineering University of GlasgowGlasgowG128QQUK

This study presents the multifunctional characteristics of multi-walled carbon nanotube(MWCNT)/polypropylene random copolymer(PPR) composites enabled via fused filament fabrication(FFF) under monotonic and quasi-static cyclic compression. Utilizing in-house MWCNT-engineered PPR filament feedstocks, both bulk and cellular composites were realized. The morphological features of nanocomposites were examined via scanning electron microscopy, which reveals that MWCNTs are uniformly dispersed. The uniformly dispersed MWCNTs forms an electrically conductive network within the PPR matrix, and the resulting nanocomposite shows good electrical conductivity(~10^(-1)S/cm), improved mechanical performance(modulus increases by 125% and compressive strength increases by 25% for 8 wt% MWCNT loading) and pronounced piezoresistive response(gauge factor of 27.9-8.5 for bulk samples)under compression. The influence of strain rate on the piezoresistive response of bulk samples(4 wt% of MWCNT) under compression was also measured. Under repeated cyclic compression(2% constant strain amplitude), the nanocomposite exhibited stable piezoresistive performance up to 100 cycles. The piezoresistive response under repeated cyclic loading with increasing strain amplitude of was also *** gauge factor of BCC and FCC cellular composites(4 wt% of MWCNT) with a relative density of 30%was observed to be 46.4 and 30.2 respectively, under compression. The higher sensitivity of the BCC plate-lattice could be attributed to its higher degree of stretching-dominated deformation behavior than the FCC plate-lattice, which exhibits bending-dominated behavior. The 3D printed cellular PPR/MWCNT composites structures were found to show excellent piezoresistive self-sensing characteristics and open new avenues for in situ structural health monitoring in various applications.

关键词： Carbon nanotubes Nanoengineered polymer composites 3D printing Piezoresistive self-sensing Lattice structures

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Assessment of knowledge, attitude and practice regarding oxygen therapy at emergency departments in Riyadh in 2017: A cross-sectional study

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World Journal of Emergency Medicine 2019年第2期10卷 88-93页

作者： Amairah fahad Aloushan Faisal Abdullah Almoaiqel Raid Naysh Alghamdi Fatmah Ismail Alnahari Abdulaziz fahad Aldosari Nazish Masud Nawfal Abdullah Aljerian College of Medicine King Saud Bin Abdulaziz University for Health Sciences Department of Medical Education College of Medicine King Saud bin Abdulaziz University for Health Sciences Riyadh Department of Emergency Medicine King Abdulaziz Medical City

BACKGROUND: Administering oxygen therapy(OT) has an essential role in preventing/managing hypoxemia in both acute and chronic conditions. It should be adjusted to achieve the normal oxygen saturation of 94%–98% in most cases. This study aims to evaluate knowledge, attitude and practice(KAP) of nurses, paramedics, emergency medical technicians(EMTs) and Emergency Medical Services(EMS) physicians working at emergency departments(ED) in Riyadh, Saudi Arabia. METHODS: In this cross-sectional study, a structured questionnaire was used to assess KAP related to OT of nurses, paramedics, EMTs and EMS physicians currently working at an ED of a tertiary care hospital. Knowledge and attitude were assessed using a Likert scale from 1–5, whereas practice was assessed as a yes/no categorical ***: A total of 444 emergency health-care workers(EHCWs) participated, of which 225(50.7%) were male, with the majority(77%) in the age group of 20–35 years. Over half of the sample were nurses(266; 59.9%). The mean score for knowledge about OT was 5.51±1.45, attitude was 26.31±3.17 and for practices 4.55±1.76. The main factors which were associated with poor KAP were workload and lack of local guidelines. The distribution of overall practice score was signifi cantly better among paramedics – nurses group and EMT – nurses ***: This study demonstrates that there is a gap in EHCWs' KAP, particularly regarding when to provide OT to a patient. This gap can affect patients' safety. Extensive educational and training programs about OT are needed to raise awareness among health-care providers.

关键词： Emergency medicine Oxygen therapy Knowledge Attitude Practice

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On Single Valued Neutrosophic Regularity Spaces

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Computer Modeling in Engineering & Sciences 2022年第3期130卷 1625-1648页

作者： Yaser Saber fahad Alsharari Florentin Smarandache Mohammed Abdel-Sattar Department of Mathematics College of Science and Human StudiesHotat SudairMajmaah UniversityMajmaah11952Saudi Arabia Department of Mathematics Faculty of ScienceAl-Azhar UniversityAssiut71524Egypt Department of Mathematics University of New MexicoGallupNM87301USA Department of Mathematics College of Science and Arts King Khaled UniversityMhayal Asier61913Saudi Arabia Department of Mathematics and Computer Science Faculty of ScienceBeni-Suef UniversityBeni-Suef62511Egypt Department of Mathematics College of Science and ArtsJouf UniversityGurayat77455Saudi Arabia

This article aims to present new terms of single-valued neutrosophic notions in theˇSostak sense,known as singlevalued neutrosophic regularity *** such as r-single-valued neutrosophic semi￡-open,r-single-valued neutrosophic pre-￡-open,r-single valued neutrosophic regular-￡-open and r-single valued neutrosophicα￡-open are defined and their properties are studied as well as the relationship between ***,we introduce the concept of r-single valued neutrosophicθ￡-cluster point and r-single-valued neutrosophicγ￡-cluster point,r-θ￡-closed,andθ￡-closure operators and study some of their ***,we present and investigate the notions of r-single-valued neutrosophicθ￡-connectedness and r-single valued neutrosophicδ￡-connectedness and investigate relationship with single-valued neutrosophic almost￡-*** compare all these forms of connectedness and investigate their properties in single-valued neutrosophic semiregular and single-valued neutrosophic almost regular in neutrosophic ideal topological spaces inˇSostak *** usefulness of these concepts are incorporated to multiple attribute groups of comparison within the connectedness and separateness ofθ￡andδ￡.

关键词： Single valued neutrosophicθ￡-closed single valued neutrosophicθ￡-separated single valued neutrosophicδ￡-separated single-valued neutrosophicδ￡-connected single valued neutrosophicδ￡-connected single valued neutrosophic almost￡-egular

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IoT & AI Enabled Three-Phase Secure and Non-Invasive COVID 19 Diagnosis System

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Computers, Materials & Continua 2022年第4期71卷 423-438页

作者： Anurag Jain Kusum Yadav Hadeel fahad Alharbi Shamik Tiwari Virtualization Department School of Computer ScienceUniversity of Petroleum and Energy StudiesDehradun248007UttarakhandIndia College of Computer Science and Engineering University of Ha’ilHa’ilKingdom of Saudi Arabia

Corona is a viral disease that has taken the form of an epidemic and is causing havoc worldwide after its first appearance in the Wuhan state of China in December *** to the similarity in initial symptoms with viral fever,it is challenging to identify this virus ***-detection of this virus at the early stage results in the death of the *** and densely populated countries face a scarcity of resources like hospitals,ventilators,oxygen,and healthcare *** like the Internet of Things(IoT)and artificial intelligence can play a vital role in diagnosing the COVID-19 virus at an early *** minimize the spread of the pandemic,IoT-enabled devices can be used to collect patient’s data remotely in a secure *** data can be analyzed through a deep learning model to detect the presence of the COVID-19 *** this work,the authors have proposed a three-phase model to diagnose covid-19 by incorporating a chatbot,IoT,and deep learning *** phase one,an artificially assisted chatbot can guide an individual by asking about some common *** case of detection of even a single sign,the second phase of diagnosis can be considered,consisting of using a thermal scanner and pulse *** case of high temperature and low oxygen saturation levels,the third phase of diagnosis will be recommended,where chest radiography images can be analyzed through an AI-based model to diagnose the presence of the COVID-19 virus in the human *** proposed model reduces human intervention through chatbot-based initial screening,sensor-based IoT devices,and deep learning-based X-ray *** also helps in reducing the mortality rate by detecting the presence of the COVID-19 virus at an early stage.

关键词： COVID-19 internet of things deep learning chatbot X-ray capsule network convolutional neural network

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An Access Control Scheme Using Heterogeneous Signcryption for IoT Environments

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Computers, Materials & Continua 2022年第3期70卷 4307-4321页

作者： Insaf Ullah Hira Zahid fahad Algarni Muhammad Asghar Khan Hamdard Institute of Engineering and Technology Islamabad44000Pakistan Department of Information Technology Abbottabad University of Science and TechnologyAbbottabadPakistan College of Computing and Information Technology The University of BishaBishaSaudi Arabia

When the Wireless Sensor Network(WSN)is combined with the Internet of Things(IoT),it can be employed in a wide range of applications,such as agriculture,industry 4.0,health care,smart homes,among *** the big data generated by these applications in Cloud Servers(CSs),requires higher levels of authenticity and confidentiality during communication conducted through the *** is one of the most promising approaches nowadays for overcoming such obstacles,due to its combined nature,i.e.,signature and encryption.A number of researchers have developed schemes to address issues related to access control in the IoT literature,however,the majority of these schemes are based on homogeneous *** will be neither adequate nor practical for heterogeneous IoT *** addition,these schemes are based on bilinear pairing and elliptic curve cryptography,which further requires additional processing time and more communication overheads that is inappropriate for real-time ***,this paper aims to solve the above-discussed issues,we proposed an access control scheme for IoT environments using heterogeneous signcryption scheme with the efficiency and security hardiness of hyperelliptic *** the security services such as replay attack prevention,confidentiality,integrity,unforgeability,non-repudiations,and forward secrecy,the proposed scheme has very low computational and communication costs,when it is compared to existing *** is primarily because of hyperelliptic curve lighter nature of key and other *** AVISPA tool is used to simulate the security requirements of our proposed scheme and the results were under two backbends(Constraint Logic-based Attack Searcher(CL-b-AtSER)and On-the-Fly Model Checker(ON-t-FL-MCR))proved to be SAFE when the presented scheme is coded in HLPSL *** scheme was proven to be capable of preventing a variety of attacks,including confidentiality,integrity,unforge

关键词： Internet of Things(IoT) access control big data heterogeneous signcryption

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Analysis of Local Diagnostic Reference Levels for Pediatric Patients Undergoing 18F-FDG PET/CT Imaging for Oncology

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Journal of Applied Mathematics and Physics 2023年第7期11卷 2144-2155页

作者： Saad Alqahtani Khaled Soliman Saad alotaibi Khaled Alnofaie Abdullah Alahmari fahad Alyahya Abdullah Albdullah Rashed Alharbi Radiodiagnostic and Medical Imaging Department Prince Sultan Military Medical City Riyadh Saudi Arabia Medical Physics Department Prince Sultan Military Medical City Riyadh Saudi Arabia

Background: The PET/CT imaging studies have two doses components the dose from the PET radiopharmaceutical and the other from the low dose CT used for PET images attenuation correction. We have one PET/CT scanner at our institution a Philips Time of Flight scanner. Our local patient’s radiation protection rules requires continuous assessment of radiation doses delivered to our patients. Purposes: The objectives of this study are to develop a weight- based facility DRLs for paediatric F-18-FDG PET-CT imaging for oncology in a large tertiary hospital and to determine whether the calculated DRLs compares with internationally published DRLs. Materials & Methods: Radiation dose data and patient demographics of two-hundreds and sixteen paediatric PET-CT oncology patients imaging procedures from one large tertiary hospital were selected and analysed in order to establish a facility paediatric DRLs. Statistical analysis was performed. Results: The PET dose reference levels ranged between [62 - 525] MBq of injected activity for a range of pediatric age groups. The CTDIvol values were between 3.5 and 16.5 mGy for all age groups. Comparison with current EANM and SNMMI recommendations of patient’s dose are discussed. Conclusion: Our pediatric PET/CT reference levels are higher than the ones reported internationally with notable variations. .

关键词： Diagnostic Reference Levels PET/CT 18-F-FDG Pediatric Radiation Dose CTDIvol Oncology

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Wind Turbine Efficiency Under Altitude Consideration Using an Improved Particle Swarm Framework

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Computers, Materials & Continua 2022年第12期73卷 4981-4994页

作者： Haykel Marouani fahad Awjah Almehmadi Rihem Farkh Habib Dhahri Department of Applied Mechanical Engineering College of Applied EngineeringMuzahimiyah BranchKing Saud UniversityP.O.BOX 800Riyadh11421Saudi Arabia Department of Applied Electrical Engineering College of Applied EngineeringMuzahimiyah BranchKing Saud UniversityP.O.BOX 800Riyadh11421Saudi Arabia Department of Information Science College of Applied Computer SciencesMuzahimiyah BranchKing Saud UniversityP.O.BOX 800Riyadh11421Saudi Arabia

In this work,the concepts of particle swarm optimization-based method,named non-Gaussian improved particle swarm optimization for minimizing the cost of energy(COE)of wind turbines(WTs)on high-altitude sites are *** the COE depends on site specification constants and initialized parameters of wind turbine,the focus was on the design optimization of rotor radius,hub height and rated *** on literature,the COE is converted to the Saudi Arabia ***,the constrained wind turbine optimization problem is ***,non-Gaussian improved particle swarm optimization is provided and compared with the conventional particle swarm optimization for solving the optimization design in wind turbine efficiency under different altitudes ranging from 2500 to 4000 *** results show that as altitude rises,the optimal rotor radius grows,but the optimal hub height and rated power drop,resulting in an increase in ***,the non-Gaussian method display a faster convergence compared to the classical particle swarm *** findings will be useful as a reference for wind turbine design at high ***,it could be employed to optimize the initialized parameter of wind turbine for the planned and largest wind farm in Saudi Arabia in Dumat Al-Jandal selected site.

关键词： Wind turbine high altitude energy cost particle swarm optimization Levy distribution

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Visible-Light Photocatalytic Conversion of Carbon Dioxide into Methane Using Cu_(2)O/TiO_(2) Hollow Nanospheres

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中国化学:英文版 2015年第1期33卷 112-118页

作者： Feng Bi Muhammad fahad Ehsan Wei Liu Tao He School of Chemistry and Chemical Engineering University of Chinese Academy of SciencesBeijing 100049China National Center for Nanoscience and Technology Beijing 100190China

In the past few decades there has been a remarkable rise in the study of visible-light photocatalytic reduction of carbon dioxide (CO_(2)) into value-added chemicals such as methane (CH4) with water as reducing agent in order to prevent global warming and energy crisis. However, so far the conversion efficiency leaves much to be enhanced under sunlight irradiation. In this work, Cu_(2)O hollow nanospheres were synthesized via soft-template method and were combined with TiO_(2) through in-situ hydrolysis of Ti(OBu)4 under sonication. The obtained photocatalysts of Cu_(2)O and Cu_(2)O/TiO_(2) composite were characterized by scanning electron microscopy, energy-dispersive X-ray spectroscopy, transmission electron microscopy, X-ray diffraction, UV-visible diffuse reflectance spectroscopy, and X-ray photoelectron spectroscopy. Compared to Cu_(2)O hollow nanospheres, the Cu_(2)O/TiO_(2) composite exhibited higher efficiency in photocatalytic reduction of CO_(2) into CH4 under visible-light irradiation (λ≥420 nm). This is because of the formation of a p-n heterojunction in the composites, resulting in efficient suppression of recombina- tion of the photogenerated electrons and holes as well as an improved stability of the catalyst and, thereby, the im- proved visible-light photocatalytic activity.

关键词： photoreduction carbon dioxide methane hollow nanosphere cuprous oxide titanium dioxide

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