18,826 results on '"Syed A, Ali"'
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52. The significance of chemical reaction, thermal buoyancy, and external heat source to optimization of heat transfer across the dynamics of Maxwell nanofluid via stretched surface
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Ahmad, Bilal, Ali, Bagh, Bariq, Abdul, Ahmed, Muhammad Ozair, Shah, Syed Asif Ali, Idrees, Muhammad, and Ragab, Adham E.
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- 2024
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53. Comparative study of some non-Newtonian nanofluid models across stretching sheet: a case of linear radiation and activation energy effects
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Shah, Syed Asif Ali, Idrees, Muhammad, Bariq, Abdul, Ahmad, Bilal, Ali, Bagh, Ragab, Adham E., and Az-Zo’bi, Emad A.
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- 2024
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54. Dickson polynomial-based secure group authentication scheme for Internet of Things
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Syed, Salman Ali, Manickam, Selvakumar, Uddin, Mueen, Alsufyani, Hamed, Shorfuzzaman, Mohammad, Selvarajan, Shitharth, and Mohammed, Gouse Baig
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- 2024
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55. Effectiveness of gamma knife radiosurgery in the management of trigeminal neuralgia associated with multiple sclerosis: a systematic review and meta-analysis
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Ali, Syed Muhmmad Sinaan, Shafique, Muhammad Ashir, Mustafa, Muhammad Saqlain, Jafri, Syed Ahsan Ali, Khalil, Sara, Fatima, Hareer, and Rangwala, Hussain Sohail
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- 2024
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56. Optimal model for predicting highest runs chase outcomes in T-20 international cricket using modern classification algorithms
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Syed Asghar Ali Shah, Qamruz Zaman, Danish Wasim, Jeza Allohibi, Abdulmajeed Atiah Alharbi, and Maha Shabbir
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Cricket ,Modern classification algorithms ,Prediction ,Sports Analytics ,Accuracy ,Precision ,Engineering (General). Civil engineering (General) ,TA1-2040 - Abstract
This study examines the theoretical framework and practical application of machine learning models to predict high run chase outcomes in T-20 International (T-20I) cricket. Focusing on factors such as venue, toss outcomes, batting order, pitch conditions, and team rankings, the analysis investigates how these elements contribute to the probability of achieving high-scoring chases. A dataset comprising 458 T-20I matches from 2005 to 2024 was analyzed using seven machine learning models: Random Forest, Support Vector Machine, Naïve Bayes, Neural Networks, Decision Tree, XGBoost, and K-Nearest Neighbors. Model performance was systematically evaluated through metrics including accuracy, precision, recall, and Area under the Curve (AUC), with robustness confirmed via Monte Carlo simulations across variable match conditions. Results highlight Random Forest and Decision Tree models as the most accurate and reliable, consistent with theoretical expectations for ensemble and decision-based models in complex, multi-factor analyses. This research provides both theoretical and practical insights to enhance data-driven strategies, pre-match evaluations, and in-game decision-making for T-20I cricket performance analysis.Top of Form
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- 2025
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57. Optimizing maritime routes: A multi-method analysis from Shanghai to Vladivostok
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Syed Wajahat Ali Bokhari, Nasir Ali, and Abid Hussain
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congestion analysis ,dijkstra’s algorithm ,game theory ,maritime route optimization ,markov chain analysis ,Applied mathematics. Quantitative methods ,T57-57.97 - Abstract
This research analyzes the marine route plan from Shanghai to Vladivostok utilizing Dijkstra’s algorithm, Markov chain analysis, game theory, and congestion analysis. Dijkstra determines the route through Busan and Hungnam as the shortest, with a total distance of 2114 kilometers and minimal travel time. The Markov chain analysis supported the designated path by demonstrating greater transition probabilities compared to other routes, so establishing it as the most probable option. Experts in game theory, particularly on the Nash equilibrium, demonstrated that cooperation significantly reduced operating expenses. Further congestion research corroborated that the Shanghai-Busan-Hungnam-Vladivostok route offers a cost advantage, and even with the inclusion of congestion, the route remains less expensive. The study collectively advocates for the consideration of distance, likelihood, collaboration, and congestion while selecting the optimal maritime route, hence enhancing efficiency in maritime logistics.
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- 2025
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58. TALome and phenotypic analysis of Pakistani Xanthomonas oryzae pv. oryzae population revealed novel virulent TALEs contributing to bacterial blight of rice
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Syed Mashab Ali Shah, Rafia Ahsan, Linlin Liu, Ying Li, Qi Wang, Yong Wang, Jiali Yan, Moein Khojasteh, Xiameng Xu, Zhengyin Xu, Awais Rasheed, Muhammad Zakria, and Gongyou Chen
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Xanthomonas oryzae pv. oryzae ,Bacterial blight ,TALome diversity ,Major TALEs EBE edited susceptibility genes ,NILs containing R genes ,Plant culture ,SB1-1110 - Abstract
Abstract Bacterial blight (BB) of rice caused by Xanthomonas oryzae pv. oryzae (Xoo), is an important disease in rice-growing countries, including Pakistan, where it was first reported in the mid-1970s. Transcription activator-like effectors (TALEs) play vital roles in many plant diseases caused by Xanthomonas spp.; however, Pakistani Xoo TALome diversity and their contribution to pathogenicity is largely unknown. In this study, 101 Xoo strains were screened using specific PCR primers. The genomic DNA from these strains underwent BamHI digestion and hybridized with the internal SphI fragment of PthXo1. Southern blot analysis revealed 16 to 20 putative tale fragments among the tested strains. These strains were further classified into 11 genotypes based on the number and size of the hybridizing bands. Genotypes 1, 2, 3, and 4 represented 24, 2, 51, and 17 strains, respectively. Pathogenicity assays on near-isogenic lines (NILs) containing different resistance (R) genes exhibited that CBB23 was incompatible with all tested Pakistani-Xoo genotypes, whereas IRBB5 and IRBB4 showed resistance against specific genotypes. In contrast, paddy trails on NILs containing single, double, and triple mutants of OsSWEET11a, OsSWEET13, and OsSWEET14 in the effector binding elements (EBEs) of cv. Kitaake revealed that KP-22 and LD-5 harbor novel virulent TAL effector/s. Interestingly, the expression analysis of six clade-III OsSWEET genes suggests that novel TALE/s targeting unidentified susceptibility gene/s. Altogether, this study highlights gene-for-gene relationships between tested rice lines and Pakistani-Xoo strains. This is the first report providing the diversity of TALEs and their relationship to R and S (susceptibility) genes. Further identification of novel virulent TALE/s and their cognate target/s is warranted to precisely elucidate their role in BB.
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- 2025
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59. Uncertainty-aware diabetic retinopathy detection using deep learning enhanced by Bayesian approaches
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Mohsin Akram, Muhammad Adnan, Syed Farooq Ali, Jameel Ahmad, Amr Yousef, Tagrid Abdullah N. Alshalali, and Zaffar Ahmed Shaikh
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Medicine ,Science - Abstract
Abstract Deep learning-based medical image analysis has shown strong potential in disease categorization, segmentation, detection, and even prediction. However, in high-stakes and complex domains like healthcare, the opaque nature of these models makes it challenging to trust predictions, particularly in uncertain cases. This sort of uncertainty can be crucial in medical image analysis; diabetic retinopathy is an example where even slight errors without an indication of confidence can have adverse impacts. Traditional deep learning models rely on single-point predictions, limiting their ability to provide uncertainty measures essential for robust clinical decision-making. To solve this issue, Bayesian approximation approaches have evolved and are gaining market traction. In this work, we implemented a transfer learning approach, building upon the DenseNet-121 convolutional neural network to detect diabetic retinopathy, followed by Bayesian extensions to the trained model. Bayesian approximation techniques, including Monte Carlo Dropout, Mean Field Variational Inference, and Deterministic Inference, were applied to represent the posterior predictive distribution, allowing us to evaluate uncertainty in model predictions. Our experiments on a combined dataset (APTOS 2019 + DDR) with pre-processed images showed that the Bayesian-augmented DenseNet-121 outperforms state-of-the-art models in test accuracy, achieving 97.68% for the Monte Carlo Dropout model, 94.23% for Mean Field Variational Inference, and 91.44% for the Deterministic model. We also measure how certain the predictions are, using an entropy and a standard deviation metric for each approach. We also evaluated the model using both AUC and accuracy scores at multiple data retention levels. In addition to overall performance boosts, these results highlight that Bayesian deep learning does not only improve classification accuracy in the detection of diabetic retinopathy but also reveals beneficial insights about how uncertainty estimation can help build more trustworthy clinical decision-making solutions.
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- 2025
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60. A stochastic sustainable Closed-Loop Supply Chain Networks for used solar photovoltaic systems: Meta-heuristic comparison and real case study
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Peiman Ghasemi, Syed Mithun Ali, Milad Abolghasemian, Reza Ahmadi Malakoot, and Adel Pourghader Chobar
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Closed-loop supply chain network ,Solar PV Systems ,ε-constraint method ,Service level ,Environmental risk ,Technology - Abstract
This research presents a novel approach to setting up a sustainable Closed-Loop Supply Chain (CLSC) network for used solar photovoltaic (PV) systems, addressing end-of-life product waste from solar panel installations and manufacturing centers. The model accounts for uncertainties in PV systems and aims to efficiently collect, refurbish, and recycle used solar PV systems, promoting a circular and environmentally responsible waste management strategy. The supply chain network comprises vendors, collection centers, hybrid centers, distribution centers, and manufacturing centers, with objectives to maximize total profit, minimize environmental risk, and maximize service levels by demonstrating the profitable reuse of used solar photovoltaic systems by manufacturers. The epsilon-constraint method is utilized to handle the model's multi-objectiveness and identify Pareto optimal solutions. A case study in Iran is conducted to validate the methodology's performance, comparing results obtained from three meta-heuristic methods: Non-Dominated Sorting Genetic Algorithm-II (NSGA-II), Multi-Objective Particle Swarm Optimization (MOPSO), and Multi-Objective Gray Wolf Optimization (MOGWO). The average error rates are 0.0358 for MOGWO, 0.1248 for MOPSO, and 0.2066 for NSGA-II. Sensitivity analysis highlights the significant impact of demand variations on all objective functions. Lastly, the numerical results are discussed to provide managerial insights for informed decision-making.
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- 2025
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61. Exploring dihydropyrimidone derivatives as modulators of carbohydrate catabolic enzyme to mitigate diabetes
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Syed Parween Ali, Farheen Mansoor, Shaymaa Fadhel Abbas Albaayit, Farman Ali, Ayed A. Dera, Muhammad Shahbaz, Jawad Ullah, Hailah M. Almohaimeed, Reem M. Gahtani, Ahmed M. Abdulfattah, Fahad M. Alshabrmi, Sarfaraz Alam, and Saeed Ullah
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α-Glucosidase inhibition ,Non-cytotoxicity ,Dihydropyrimidone ,Diabetes therapy ,Molecular docking simulation ,Kinetics ,Medicine ,Science - Abstract
Abstract Diabetes is a prevalent and serious metabolic disorder affecting millions globally, and it poses extensive health risks due to elevated blood glucose levels. One promising approach for managing diabetes is the inhibition of α-glucosidase, an enzyme that plays a crucial role in carbohydrate metabolism. Targeting α-glucosidase can help delay glucose absorption, thus controlling postprandial blood sugar spikes. Dihydropyrimidones, a core structural class present in various biologically active natural compounds, have been recognized for their diverse therapeutic potential, including anti-diabetic properties. In this study, we evaluated a library of previously synthesized 37 Dihydropyrimidone derivatives to assess their potential as α-glucosidase inhibitors. We identified 34 derivatives with significant inhibitory activity, exhibiting IC50 values in the range of 5.30–56.72 µM. Among these, compounds 2, 4–7, 9–11, 13–16, 31, 32, and 33 demonstrated high potency, with IC50 values below 20 µM; the most active compound, 5, achieved an IC50 of 5.30 µM. A detailed kinetic study on compound 5 revealed a competitive inhibition mode with a Ki value of 16.10 ± 0.0075 µM. Additionally, cytotoxicity assays confirmed that compound 5 is non-toxic to BJ cell lines, underscoring its safety for therapeutic use. The computational studies further supported the inhibitory potential by illustrating key interactions and binding affinities between the Dihydropyrimidone derivatives and the α-glucosidase, highlighting these compounds as promising candidates for diabetes management.
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- 2024
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62. Cord Blood Bilirubin as a Predictor of Neonatal Hyperbilirubinemia
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Saman Beg, Uzma Firdaus, and Syed Manazir Ali
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cord blood bilirubin ,high negative predictive value ,hyperbilirubinemia ,trans-bilirubinometer ,Medicine - Abstract
Introduction: In the 1st week of life, hyperbilirubinemia is the most common clinical condition in newborns that has to be evaluated and treated. It is also a prominent cause of readmission to the hospital. Some newborns experience noticeable, potentially dangerous bilirubin levels, which can directly increase the risk of severe brain damage, despite it being a benign, postnatal, transitory phenomenon. The current investigation looked at the relationship between cord blood bilirubin levels and the predictability of pathological jaundice. Materials and Methods: Cord blood bilirubin was estimated at birth. Bilirubin estimation was done at 48 h, 72 h, and 5–7 days of life using a trans-bilirubinometer. The study was approved by the Institutional Ethical Committee. Results: Significant hyperbilirubinemia was found in 3.7% of the neonates. A statistically significant correlation was found between cord blood bilirubin and the development of significant hyperbilirubinemia at 48 h of life. Gender, gestational age, birth weight, and use of Oxytocin have no correlation with cord bilirubin or the subsequent development of jaundice. A cord blood value of >2 mg/dL has a high negative predictive value (98%), sensitivity (83%), specificity (41%), and positive predictive value (5.3%) in predicting the future development of future pathological jaundice. Conclusions: A high negative predictive value in our study suggests that healthy term babies with cord bilirubin ≤2 mg/dL can be discharged early with assurance to parents. Babies with cord blood bilirubin >2 mg/dL should be followed more frequently.
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- 2024
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63. In vitro antioxidant and in silico enzyme inhibition studies of Carissa carandas Linn.: potential ingredient for nutraceutical development
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Momina Zubair, Muhammad Imran Tousif, Naheed Riaz, Muhammad Saleem, Mamona Nazir, Saba Tauseef, Areeba Hassan, Syed Adnan Ali Shah, Gokhan Zengin, Abeer Hashem, Ajay Kumar, and Elsayed Fathi Abd_Allah
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Carissa carandas L ,metabolic profiling ,antioxidant activity ,enzyme inhibition ,docking and ADME studies` ,Nutrition. Foods and food supply ,TX341-641 ,Food processing and manufacture ,TP368-456 - Abstract
Carissa carandas L. is a wild food plant, however, is cultivated for its fruits to be utilized to make pickles, jams, and other similar products. Fruit of this plant has been intensively investigated for its bioactive potential; however, a scanty study is reported on the leaf, which is usually wasted. In the present study, ethanolic extract of the leaf of C. carandas was analyzed for its total bioactive contents and found rich in phenolics and flavonoids (26.67 ± 0.33 mg GAE/g extract and 18.42 ± 0.05 mg RE/g extract, respectively). These findings were substantiated due to UHPLCMS/MS analysis, which disclosed the presence of about 110 secondary metabolites, mostly lignans, flavonoids, and terpenoids. In DPPH and ABTS free radical inhibition assays, the extract showed inhibitory values as 47.51 ± 0.09 and 93.09 ± 2.8 mg TE/g extract, respectively. Its further antioxidant potential was observed in CUPRAC and FRAP assays, wherein the metal reducing power was recorded as 102.05 ± 1.03 and 67.24 ± 0.9 mg TE/g extract, respectively, while in phosphomolybdenum and metal chelating assays, the extract also disclosed potential activity (0.92 ± 0.02 mmol TE/g extract and 21.42 ± 0.34 mg EDTAE/g extract). The extract was also significantly active against tyrosinase (45.69 ± 0.7 mg KAE/g extract) and showed mild activities against AChE (3.61 ± 0.16 mg GALAE/g extract), BChE (1.43 ± 0.2 mg GALAE/g extract), α-amylase (0.46 ± 0.01 mmol ACAE/g extract) and α-glucosidase (1.05 ± 0.02 mmol ACAE/g extract). In computational studies, binding affinities for AChE and BChE enzymes were from −4.21 to −12.70 and −7.58 to −12.53 kcal/mol, respectively, confirming the results of the invitro tests and ADME studies. The current finding suggested that C. carandas may be considered as a source for several nutraceutical formulations.
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- 2024
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64. Gelatinization and fermentation synergy: investigating the protein digestibility, mineral bioaccessibility and microstructural transformations of black mash beans through Saccharomyces cerevisiae and Lactobacillus spp
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Syed Arsalan Ali, Syed Muhammad Ghufran Saeed, Muhammad Sohail, Abdulhakeem Alzahrani, and Hany Mohamed Yehia
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Fermentation ,black mash bean ,protein solubility ,mineral bioavailability ,microbial enzymes ,Nutrition. Foods and food supply ,TX341-641 ,Food processing and manufacture ,TP368-456 - Abstract
This study explored the nutritional qualities of black mash bean flour impacted by fermentation, gelatinization and their combination. Protease activity, in vitro protein digestibility (IVPD), and protein solubility were evaluated for both fermented and unfermented black mash bean flour samples. Interestingly, when compared to fermented samples and gelatinized mash bean flour (GMBF), raw mash bean flour (RMBF) showed the highest protein solubility. Due to enzymatic activity and protein hydrolysis, fermentation with Lactobacillus E14 and Saccharomyces cerevisiae MK-157 enhanced protein solubility. Prolonged fermentation timeframes were positively correlated with protease activity and IVPD, suggesting the degradation of complex proteins. The highest levels of IVPD (90.12%) and protease activity (5546.78 U/g) were detected in GMBF fermented by S. cerevisiae MK-157, indicating the impact of fermentation on protein breakdown. The Lactobacillus E14-fermented RMBF exhibited 5521.45 U/g of protease activity and 87.54% IVPD. The mineral content of the fermented samples was substantially greater than that of the unfermented GMBF. The increased calcium, magnesium, potassium, sodium, iron, zinc, and copper levels for the GMBF fermented by S. cerevisiae MK-157 indicated that fermentation facilitated the release of minerals from chelated compounds. Microscopic examination revealed higher protein quantities in the fermented flour as well as hydrolyzed and broken starch granules embedded in the protein matrix. Large mash bean proteins were shown to be proteolyzed during fermentation into smaller peptides by SDS PAGE. Storage proteins were extensively broken down during fermentation with S. cerevisiae MK-157, whereas Lactobacillus E14 displayed a more focused pattern of hydrolysis. The nutritional profile of black mash bean flour was improved by fermentation with Lactobacillus E14 and S. cerevisiae MK-157.
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- 2024
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65. Data-driven Spatio-Temporal Scaling of Travel Times for AMoD Simulations
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Syed, Arslan Ali, Zhang, Yunfei, and Bogenberger, Klaus
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Electrical Engineering and Systems Science - Systems and Control - Abstract
With the widespread adoption of mobility-on-demand (MoD) services and the advancements in autonomous vehicle (AV) technology, the research interest into the AVs based MoD (AMoD) services has grown immensely. Often agent-based simulation frameworks are used to study the AMoD services using the trip data of current Taxi or MoD services. For reliable results of AMoD simulations, a realistic city network and travel times play a crucial part. However, many times the researchers do not have access to the actual network state corresponding to the trip data used for AMoD simulations reducing the reliability of results. Therefore, this paper introduces a spatio-temporal optimization strategy for scaling the link-level network travel times using the simulated trip data without additional data sources on the network state. The method is tested on the widely used New York City (NYC) Taxi data and shows that the travel times produced using the scaled network are very close to the recorded travel times in the original data. Additionally, the paper studies the performance differences of AMoD simulation when the scaled network is used. The results indicate that realistic travel times can significantly impact AMoD simulation outcomes.
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- 2023
66. Impact of diet and physical activity on reproductive profile : A comparison of middle-aged and elderly men
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Ashraf, Huma, Sarwar, Muhammad, Mushtaq, Mazhar, Shah, Syed Imran Ali, and Khurshid, Rukhshan
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- 2024
67. Norm relations for CM points on modular curves
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Shah, Syed Waqar Ali
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Mathematics - Number Theory ,11G18, 11R23 - Abstract
In this expository note, we prove the horizontal norm relations for the anticyclotomic Euler system of CM points on modular curves with a view towards higher dimensional generalizations., Comment: Expository, 12 pages
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- 2023
68. UE4-NeRF:Neural Radiance Field for Real-Time Rendering of Large-Scale Scene
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Gu, Jiaming, Jiang, Minchao, Li, Hongsheng, Lu, Xiaoyuan, Zhu, Guangming, Shah, Syed Afaq Ali, Zhang, Liang, and Bennamoun, Mohammed
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Computer Science - Computer Vision and Pattern Recognition - Abstract
Neural Radiance Fields (NeRF) is a novel implicit 3D reconstruction method that shows immense potential and has been gaining increasing attention. It enables the reconstruction of 3D scenes solely from a set of photographs. However, its real-time rendering capability, especially for interactive real-time rendering of large-scale scenes, still has significant limitations. To address these challenges, in this paper, we propose a novel neural rendering system called UE4-NeRF, specifically designed for real-time rendering of large-scale scenes. We partitioned each large scene into different sub-NeRFs. In order to represent the partitioned independent scene, we initialize polygonal meshes by constructing multiple regular octahedra within the scene and the vertices of the polygonal faces are continuously optimized during the training process. Drawing inspiration from Level of Detail (LOD) techniques, we trained meshes of varying levels of detail for different observation levels. Our approach combines with the rasterization pipeline in Unreal Engine 4 (UE4), achieving real-time rendering of large-scale scenes at 4K resolution with a frame rate of up to 43 FPS. Rendering within UE4 also facilitates scene editing in subsequent stages. Furthermore, through experiments, we have demonstrated that our method achieves rendering quality comparable to state-of-the-art approaches. Project page: https://jamchaos.github.io/UE4-NeRF/., Comment: Accepted by NeurIPS2023
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- 2023
69. Explicit Hecke descent for special cycles
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Shah, Syed Waqar Ali
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Mathematics - Number Theory ,11G18, 14G35, 14C25 - Abstract
We derive an explicit formula for the action of a geometric Hecke correspondence on special cycles on a Shimura variety in terms of such cycles at a fixed neat level and compare it with another closely related expression sometimes used in literature. Potential applications include construction of Euler systems via $\pi_{0}$ of Shimura varieties., Comment: 14 pages, 3 figures
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- 2023
70. On distribution relations of polylogarithmic Eisenstein classes
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Shah, Syed Waqar Ali
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Mathematics - Number Theory ,11F85, 11G55, 11R56, 11G18 - Abstract
We show that for Siegel modular varieties of arbitrary genus, the natural distribution relations satisfied by certain integral Eisenstein cohomology classes defined by Kings admit an adelic refinement. This generalizes the classical relations for Siegel units on modular curves., Comment: 19 pages, 10 figures
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- 2023
71. MultiCaM-Vis: Visual Exploration of Multi-Classification Model with High Number of Classes
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Dilawer, Syed Ahsan Ali and Humayoun, Shah Rukh
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Computer Science - Human-Computer Interaction ,Computer Science - Machine Learning - Abstract
Visual exploration of multi-classification models with large number of classes would help machine learning experts in identifying the root cause of a problem that occurs during learning phase such as miss-classification of instances. Most of the previous visual analytics solutions targeted only a few classes. In this paper, we present our interactive visual analytics tool, called MultiCaM-Vis, that provides \Emph{overview+detail} style parallel coordinate views and a Chord diagram for exploration and inspection of class-level miss-classification of instances. We also present results of a preliminary user study with 12 participants.
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- 2023
72. Quantum-AI empowered Intelligent Surveillance: Advancing Public Safety Through Innovative Contraband Detection
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Shah, Syed Atif Ali, Algeelani, Nasir, and Al-Sammarraie, Najeeb
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Quantum Physics ,Computer Science - Artificial Intelligence ,Computer Science - Machine Learning - Abstract
Surveillance systems have emerged as crucial elements in upholding peace and security in the modern world. Their ubiquity aids in monitoring suspicious activities effectively. However, in densely populated environments, continuous active monitoring becomes impractical, necessitating the development of intelligent surveillance systems. AI integration in the surveillance domain was a big revolution, however, speed issues have prevented its widespread implementation in the field. It has been observed that quantum artificial intelligence has led to a great breakthrough. Quantum artificial intelligence-based surveillance systems have shown to be more accurate as well as capable of performing well in real-time scenarios, which had never been seen before. In this research, a RentinaNet model is integrated with Quantum CNN and termed as Quantum-RetinaNet. By harnessing the Quantum capabilities of QCNN, Quantum-RetinaNet strikes a balance between accuracy and speed. This innovative integration positions it as a game-changer, addressing the challenges of active monitoring in densely populated scenarios. As demand for efficient surveillance solutions continues to grow, Quantum-RetinaNet offers a compelling alternative to existing CNN models, upholding accuracy standards without sacrificing real-time performance. The unique attributes of Quantum-RetinaNet have far-reaching implications for the future of intelligent surveillance. With its enhanced processing speed, it is poised to revolutionize the field, catering to the pressing need for rapid yet precise monitoring. As Quantum-RetinaNet becomes the new standard, it ensures public safety and security while pushing the boundaries of AI in surveillance.
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- 2023
73. When surgery leaves more than just scars: The curious case of gossypiboma— A case report and literature review
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Syed Muhammad Ali, MBBS, Affan Faisal, MBBS, Talha Ashraf Zia, MBBS, Fatima Shahid, MBBS, Muhammad Nabeel Saddique, MBBS, Anurag Jha, MBBS, Atif Hussain Sarwar, MD, and Javed Iqbal, RN, PhD
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Complication ,Gossypiboma ,Retained foreign body ,Textiloma ,Case report ,Medical physics. Medical radiology. Nuclear medicine ,R895-920 - Abstract
Gossypiboma is a unique postoperative complication characterized by the presence of a surgical sponge after surgery. This condition is seldom encountered. Owing to its serious medicolegal implications it remains underreported leading to a blurred clinical spectrum. This fact is also depicted in our case which presents an array of nonspecific symptoms painting a picture of possible malignancy. The case highlights the need for strict adherence to surgical protocols to avoid such instances of clinical negligence. Furthermore, our report provides the medical community with apt data to promptly diagnose such cases. A 40-year-old Asian hypertensive and diabetic female with a history of total hysterectomy presented with a 7-month history of progressive abdominal swelling, vomiting, and weight loss. The initial clinical presentation pointed to possible malignancies but subsequently revealed a 16 × 4 × 6 cm gossypiboma near the ileocecal junction. Following the removal and resection of 2.5 feet of the ileum, the patient underwent a right hemicolectomy, ileostomy, and colostomy. The postoperative recovery was uneventful, and the patient was discharged in stable condition. This case reiterates the importance of adhering to established surgical protocols and how minor negligence can have devastating and horrid effects. This case highlights the need for the fusion of medicine with technology< which prompts the use of innovations such as RFID-tagged sponges and electronic counting to minimize human error. Increased awareness and reporting of gossypibomas will aid in their timely diagnosis and management, ultimately reducing patient morbidity and associated legal challenges.
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- 2025
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74. When do customers become your trusted allies: Unveiling pathways for enhanced citizenship in family-owned hotels
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Habib, Syed Muhammad Ali Shahbaz, Sindhu, Mahwish, and Saleem, Irfan
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- 2024
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75. The Effect of the Regenerative Tourism Movement on the Global Industry and the Role of Artificial Intelligence
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Rahman, Eman Zameer, author, Aziz, Shahab, author, Shah, Syed Bilawal Ali, author, and Asrifan, Andi, author
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- 2024
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76. Smart Destinations and Artificial Intelligence for Rethinking and Rebuilding Tourism: Case From China and Hong Kong
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Jamshed, Kamran, author, Shah, Syed Haider Ali, author, Jebli, Fedwa, author, and Al-Ghazali, Basheer M., author
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- 2024
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77. Sustainable Expansion of the Tourist Industry Due to the Application of Artificial Intelligence: Evidence From the Chinese Hospitality Industry
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Afzal, Muhammad Imran, author, Al.Azhari, Sanaullah, author, Kishwer, Rabia, author, and Shah, Syed Bilawal Ali, author
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- 2024
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78. Introduction
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Alnoor, Alhamzah, author, Bayram, Gül Erkol, author, XinYing, Chew, author, and Shah, Syed Haider Ali, author
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- 2024
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79. Fiscal Resilience or Vulnerability? Assessing Public Debt Sustainability in the Developing Countries During 1996–2020
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Shah, Syed Sadaqat Ali, Afridi, Muhammad Asim, Luo, Libin, and Taşkın, Dilvin
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- 2024
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80. Assessment of Self-reported Food Waste from Households via Two Routes in Pakistan
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Zafar, Sania, Ullah, Ehsan, Naqvi, Syed Asif Ali, Anwar, Sofia, and Hussain, Bilal
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- 2024
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81. Mental health of prison inmates: validation and measurement invariance of the Depression, Anxiety, and Stress Scale (DASS)
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Kazmi, Syed Messum Ali and Ismail, Mobeen
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- 2024
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82. Does intellectual capital curb the long-term effect of information security breaches on firms’ market value?
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Ali, Syed Emad Azhar, Lai, Fong-Woon, Jan, Ahmad Ali, Rahman, Haseeb ur, Shah, Syed Quaid Ali, and Hamad, Salaheldin
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- 2024
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83. Adaptation of the Updated Illinois Rape Myth Acceptance Scale in Urdu
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Kazmi, Syed Messum Ali, Farooq, Zaeema, and Tariq, Shahrukh
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- 2024
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84. Multinomial classification of NLRP3 inhibitory compounds based on large scale machine learning approaches
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Ishfaq, Muhammad, Shah, Syed Zahid Ali, Ahmad, Ijaz, and Rahman, Ziaur
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- 2024
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85. N-doped and Se incorporated reduced graphene oxide nanocomposite as a new adsorbent for efficient Ni(II) ion removal from aqueous sample
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Ali, Erum Asghar, Elsaid, Khaled, Hughes, David James, Nasef, Mohamed Mahmoud, Syed, Junaid Ali, Ali, Mohsin, Abdel-Wahab, Ahmed, Ahmed, Khalid, and Ghouri, Zafar Khan
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- 2024
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86. Design and analysis of stability and control for a small unmanned aerial vehicle
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Rauf, Malik Nauman, Khan, Roohan Ahmed, Shah, Syed Irtiza Ali, and Naqvi, Messam Abbas
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- 2024
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87. Software Startups -- A Research Agenda
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Unterkalmsteiner, Michael, Abrahamsson, Pekka, Wang, Xiaofeng, Nguyen-Duc, Anh, Shah, Syed M. Ali, Bajwa, Sohaib Shahid, Baltes, Guido H., Conboy, Kieran, Cullina, Eoin, Dennehy, Denis, Edison, Henry, Fernández-Sánchez, Carlos, Garbajosa, Juan, Gorschek, Tony, Klotins, Eriks, Hokkanen, Laura, Kon, Fabio, Lunesu, Ilaria, Marchesi, Michele, Morgan, Lorraine, Oivo, Markku, Selig, Christoph, Seppänen, Pertti, Sweetman, Roger, Tyrväinen, Pasi, Ungerer, Christina, and Yagüe, Agustín
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Computer Science - Software Engineering - Abstract
Software startup companies develop innovative, software-intensive products within limited time frames and with few resources, searching for sustainable and scalable business models. Software startups are quite distinct from traditional mature software companies, but also from micro-, small-, and medium-sized enterprises, introducing new challenges relevant for software engineering research. This paper's research agenda focuses on software engineering in startups, identifying, in particular, 70+ research questions in the areas of supporting startup engineering activities, startup evolution models and patterns, ecosystems and innovation hubs, human aspects in software startups, applying startup concepts in non-startup environments, and methodologies and theories for startup research. We connect and motivate this research agenda with past studies in software startup research, while pointing out possible future directions. While all authors of this research agenda have their main background in Software Engineering or Computer Science, their interest in software startups broadens the perspective to the challenges, but also to the opportunities that emerge from multi-disciplinary research. Our audience is therefore primarily software engineering researchers, even though we aim at stimulating collaborations and research that crosses disciplinary boundaries. We believe that with this research agenda we cover a wide spectrum of the software startup industry current needs.
- Published
- 2023
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88. Unrolled and Pipelined Decoders based on Look-Up Tables for Polar Codes
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Giard, Pascal, Shah, Syed Aizaz Ali, Balatsoukas-Stimming, Alexios, Stark, Maximilian, and Bauch, Gerhard
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Computer Science - Information Theory ,Computer Science - Hardware Architecture - Abstract
Unrolling a decoding algorithm allows to achieve extremely high throughput at the cost of increased area. Look-up tables (LUTs) can be used to replace functions otherwise implemented as circuits. In this work, we show the impact of replacing blocks of logic by carefully crafted LUTs in unrolled decoders for polar codes. We show that using LUTs to improve key performance metrics (e.g., area, throughput, latency) may turn out more challenging than expected. We present three variants of LUT-based decoders and describe their inner workings as well as circuits in detail. The LUT-based decoders are compared against a regular unrolled decoder, employing fixed-point representations for numbers, with a comparable error-correction performance. A short systematic polar code is used as an illustration. All resulting unrolled decoders are shown to be capable of an information throughput of little under 10 Gbps in a 28 nm FD-SOI technology clocked in the vicinity of 1.4 GHz to 1.5 GHz. The best variant of our LUT-based decoders is shown to reduce the area requirements by 23% compared to the regular unrolled decoder while retaining a comparable error-correction performance., Comment: Accepted to the International Symposium on Topics in Coding (ISTC) 2023
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- 2023
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89. Implantable and Ingestible Antenna Systems: From imagination to realization
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Basir, Abdul, Cho, Youngdae, Shah, Izaz Ali, Hayat, Shahzeb, Ullah, Sana, Zada, Muhammad, Shah, Syed Ahson Ali, and Yoo, Hyoungsuk
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Physics - Medical Physics - Abstract
Biomedical implantable technologies are life-saving modalities for millions of people globally because of their abilities of wireless remote monitoring, regulating the abnormal functions of internal organs, and early detection of cognitive disorders. Enabling these devices with wireless functionalities, implantable antennas are the crucial front-end component of them. Detailed overviews of the implantable and ingestible antennas, their types, miniaturization techniques, measurement phantoms, biocompatibility issues, and materials are available in the literature. This article comprehensively reviews the design processes, design techniques and methods, types of antennas, electromagnetic (EM) simulators, and radiofrequency (RF) bands used for implantable and ingestible antennas. We briefly discussed the latest advancements in this field and extended their scope beyond conventional implantable applications. Their related issues and challenges are highlighted, and the performance enhancement techniques have been discussed in detail. All the scoped implantable applications have been covered in this review. A standard protocol has been devised to provide a simple and efficient roadmap for the design and realization of the implantable and ingestible antenna for future RF engineers and researchers. This protocol minimizes the errors in simulations and measurements by enhancing the agreement between simulated and measured results and simplifies the process of development of implantable and ingestible antennas. It generalizes the process from idea-to-realization-to-commercialization and provides an easy roadmap for the industry.
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- 2023
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90. Association Between Hashimoto’s Thyroiditis and Periodontal Disease: A Narrative Review
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Aiman Ahsan, Zobia Rafiq, Mahnoor Fatima, Marium Naeem, Jaweria Niamat, Syed Jawad Ali Bukhari, and Muhammad Saad Shaikh
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autoimmunity ,Hashimoto’s thyroiditis ,thyroid antibodies ,periodontal disease ,periodontitis ,Dentistry ,RK1-715 - Abstract
Objective: This review aims to elucidate the link between Hashimoto’s thyroiditis (HT) and periodontal disease (PD) and to substantiate whether the autoimmune mechanisms involved in the pathogenesis of HT influence the integrity of oral tissues, eventually inducing the development of PD. Methods: The present article is a narrative review that has been composed conforming to the Scale for the Assessment of Narrative Review Articles (SANRA) guidelines on the topic ‘Association between HT and PD’. Results: Eight studies, including four case–control studies, one cross-sectional study, two case reports, and one bidirectional Mendelian randomization study, were cited. These studies were filtered by language (all in English) and relevance to the topic and were sourced from the Google Scholar and PubMed databases. The results suggest a potential link between HT and PD, indicating that HT may have a direct impact on oral tissues. Conclusion: Existing research shows limited but probable evidence associating HT with PD; nevertheless, further large-scale studies with refined methodologies are required to assess this hypothesis and elucidate the precise mechanisms by which HT may contribute to PD pathogenesis.
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- 2024
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91. Enhancement of Mechanical Properties of Hybrid Polymer Composites Using Palmyra Palm and Coconut Sheath Fibers: The Role of Tamarind Shell Powder
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Karthik Aruchamy, Manickaraj Karuppusamy, Sivasankari Krishnakumar, Sivasubramanian Palanisamy, Manivannan Jayamani, Kumar Sureshkumar, Syed Kashif Ali, and Saleh A. Al-Farraj
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mechanical characteristics ,filler incorporation ,hybrid polymer composites ,tamarind shell powder ,palmyra palm leaflet ,coconut sheath leaf ,Biotechnology ,TP248.13-248.65 - Abstract
This study investigates the enhancement of mechanical characteristics of hybrid polymer composites reinforced with Palmyra Palm Leaflet (PPL) and Coconut Sheath Leaf (CSL) fibers by integrating Tamarind Shell Powder as a filler material. The composites were fabricated with varying ratios of PPL and CSL fibers, and their tensile strength, flexural strength, interlaminar shear strength (ILSS), impact strength, hardness, and water absorption were evaluated. Results indicated that the composite with 20% PPL and 10% CSL exhibited superior mechanical performance, achieving the highest tensile strength of 42.22 MPa, flexural strength of 94.35 MPa, ILSS of 7.52 MPa, and impact strength of 5.98 J. Hardness values peaked at 84.12 SD for the same composition. Moreover, the integration of Tamarind Shell Powder significantly improved the mechanical properties compared to composites without filler, which showed lower values across all parameters. Water absorption tests revealed an increase in water uptake with filler incorporation, though within acceptable limits for practical applications. Scanning Electron Microscopy (SEM) analysis further supported these results by revealing enhanced fiber-matrix bonding and better dispersion of the filler, resulting in fewer voids and defects. This research highlights the potential of bio-based fillers in optimizing the mechanical performance of hybrid composites for sustainable engineering applications.
- Published
- 2024
92. Strategies to optimise the health equity impact of digital pain self-reporting tools: a series of multi-stakeholder focus groups
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Syed Mustafa Ali, Amanda Gambin, Helen Chadwick, William G. Dixon, Allison Crawford, and Sabine N. Van der Veer
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Health equity ,Pain assessment ,Pain management ,Digital health ,Digital pain self-reporting tools ,Public aspects of medicine ,RA1-1270 - Abstract
Abstract Background There are avoidable differences (i.e., inequities) in the prevalence and distribution of chronic pain across diverse populations, as well as in access to and outcomes of pain management services. Digital pain self-reporting tools have the potential to reduce or exacerbate these inequities. This study aimed to better understand how to optimise the health equity impact of digital pain self-reporting tools on people who are experiencing (or are at risk of) digital pain inequities. Methods This was a qualitative study, guided by the Health Equity Impact Assessment tool—digital health supplement (HEIA-DH). We conducted three scoping focus groups with multiple stakeholders to identify the potential impacts of digital pain self-reporting tools and strategies to manage these impacts. Each group focused on one priority group experiencing digital pain inequities, including older adults, ethnic minorities, and people living in socio-economically deprived areas. A fourth consensus focus group was organised to discuss and select impact management strategies. Focus groups were audio-recorded, transcribed verbatim, and analysed using a framework approach. We derived codes, grouped them under four pre-defined categories from the HEIA-DH, and illustrated them with participants’ quotes. Results A total of fifteen people living with musculoskeletal pain conditions and thirteen professionals took part. Participants described how digital pain self-reports can have a positive health equity impact by better capturing pain fluctuations and enriching patient-provider communication, which in turn can enhance clinical decisions and self-management practices. Conversely, participants identified that incorrect interpretation of pain reports, lack of knowledge of pain terminologies, and digital (e.g., no access to technology) and social (e.g., gender stereotyping) exclusions may negatively impact on people’s health equity. The participants identified 32 strategies, of which 20 were selected as being likely to mitigate these negative health equity impacts. Example strategies included, e.g., option to customise self-reporting tools in line with users’ personal preferences, or resources to better explain how self-reported pain data will be used to build trust. Conclusion Linked to people’s personal and social characteristics, there are equity-based considerations for developing accessible digital pain self-reporting tools, as well as resources and skills to enable the adoption and use of these tools among priority groups. Future research should focus on implementing these equity-based considerations or strategies identified by our study and monitoring their impact on the health equity of people living with chronic pain.
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- 2024
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93. Hepatocellular carcinoma antibodies preferably identify nitro-oxidative-DNA lesions induced by 4-Chloro-orthophenylenediamine and DEANO
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Shifa Khan, Asif Ali, Mohd Sharib Warsi, Sana Waris, Ali Raza, Syed Amaan Ali, Mohd Mustafa, Moinuddin, Shahid Ali Siddiqui, Riaz Mahmood, and Safia Habib
- Subjects
4-Chloro-orthophenylenediamine ,DNA ,Neo-epitopes ,Enzyme-linked immunosorbent assay ,Hepatocellular carcinoma ,Medicine ,Science - Abstract
Abstract The widespread use of oxidative hair colouring cosmetics threatens public health. Phenylenediamine derivatives serve as the main pigment in permanent hair colours. They interact with biological macromolecules, altering their functional and structural physiology. The study aimed to investigate the effect of a typical synthetic hair dye pigment, 4-Chloro-orthophenylenediamine (4-Cl-OPD), under a nitrating environment of DEANO on the calf thymus DNA molecule. The results showed single-stranded regions, base/sugar-phosphate backbone alterations, molecular changes, and nitro-oxidative lesions. These modifications are referred to as neo-epitopes on the DNA molecule. IgGs from cancer patients with a history of permanent hair dye use were screened for the recognition of neo-epitopes on DNA molecules. Hepatocellular carcinoma IgG showed the highest binding with 56% inhibition in the competition ELISA. The immune complex formation was observed through electrophoretic mobility shift assay. In conclusion, synthetic hair dye users are likely to present with heightened immunological triggers under elevated nitric oxide levels. The study reports chronic hair dye exposure as one of the factors responsible for altering the intricacies of the DNA’s microarchitectural structure and inducing neo-epitopes on the molecule. The physiological status of NO may define the susceptibility towards 4-Cl-OPD and humoral response in hair dye users. Persistent nitro-oxidative stress due to 4-Cl-OPD and NO may induce a heightened immune response against neoepitopes in the nitro-oxidatively modified DNA. Therefore, chronic hair dye exposure may be identified as a risk to human health. These findings may contribute to a better understanding and reinforcement of hair dye as one of the modifiable risk factors responsible for the pro-inflammatory carcinogenic environment.
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- 2024
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94. Leveraging Industry 4.0 for marketing strategies in the medical device industry of emerging economies
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Irfan Ahmed, Bo Feng, Kyei Emmanuel Yeboah, Junwen Feng, Muhammad Saleh Jumani, and Syed Amjad Ali
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Information technology, industry 4.0 ,Marketing strategies, F-AHP, VIKOR ,Medical devices ,Pakistan ,Medicine ,Science - Abstract
Abstract This research investigates the impact of the technologies through an integrated Fuzzy Analytic Hierarchy Process (F-AHP) and VIKOR model to determine their viability as a marketing strategy for business growth in the Prosthetics and Orthotics (P&O) medical device industry. Based on expert data, the study evaluates the integration of Industry 4.0 technologies and ranks them by priority for marketing performance: “Artificial Intelligence & Machine Learning” (0.3295), “Internet of Things” (0.4325), “Virtual Reality & Augmented Reality” (0.5000), and “Big Data” (0.5704). The findings confirm that the proposed model effectively Leverage the industry 4.0 technologies to enhance marketing strategies, using Pakistan as a case study. This research serves as a blueprint for addressing the integration of next-generation marketing tools, technological advancements, and business growth challenges in the P&O industry. It contributes to the growing body of knowledge on the role of technology in improving healthcare marketing and business performance in emerging markets. Future research should explore the broader impact of Industry 4.0 technologies on healthcare marketing, focusing on strategic decision-making, efficient marketing resource allocation, and performance measurement to ensure sustained success in the P&O medical device sector. The study concludes that prioritizing Industry 4.0 technologies, however, limitations such as sample size, data collection constraints, and model complexity may Leverage the generalizability of the results. Future research should address these limitations by expanding the scope of expert involvement and exploring the application of this model in other emerging economies, to further validate the findings and assess the broader implications for healthcare marketing strategies globally.
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- 2024
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95. Computational identification of PDL1 inhibitors and their cytotoxic effects with silver and gold nanoparticles
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Syed Hammad Ali, Hiba Ali, and Mohd. Azhar Aziz
- Subjects
Immunotherapy ,MTT assay ,Molecular dynamics simulations ,Nanoparticles ,PD1/PDL1 immune checkpoint ,T cells activation ,Medicine ,Science - Abstract
Abstract Immunotherapy is a promising treatment for cancer that aims to boost the immune system’s response to cancer cells. This can be achieved by blocking Programmed cell death protein 1/Programmed death-ligand 1 (PD1/PDL1), which activates T cells. In this work, the aim was to find high-affinity drugs against PDL1 using computational tools and conjugate nanoparticles with them. The cytotoxic activity of the nanoparticle conjugated drugs was then tested. The screening of 100,000 drugs from the ZINC database and FDA-approved drugs was done computationally. The physicochemical properties and toxicity of the drugs were analyzed using SwissADME and ProTox-II, respectively. Silver nanoparticles (AgNPs) and gold nanoparticles (AuNPs) were synthesized using extracts of Catharanthus roseus flowers and Juglans regia shells, respectively. The characterization of AgNPs and AuNPs was performed using UV–Vis spectroscopy, X-ray diffraction (XRD), and Fourier transform infrared spectroscopy (FTIR). Their conjugation with the drugs Irinotecan, Imatinib, and Methotrexate was also confirmed using UV–Vis, FTIR, and Dynamic light scattering (DLS). The top screened drugs were ZINC1098661 and 3 FDA-approved drugs (Irinotecan, Imatinib, and Methotrexate). Docking studies revealed that Irinotecan had the highest binding affinity towards PDL1 when conjugated with silver nanoparticles (AgNPs) and gold nanoparticles (AuNPs). The Irinotecan-PDL1 complex was confirmed as the most stable through molecular dynamics simulations. The result of the methylthiazol tetrazolium (MTT) assay showed that conjugated AgNPs and AuNPs with Irinotecan had a higher toxic effect on the A549 cancer cell line than AgNPs and AuNPs conjugated with Imatinib. This study provides a promising avenue for further investigation and development of nanoparticle-drug conjugates as a potential cancer immunotherapy strategy.
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- 2024
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96. Impella 5.5 as a bridge-to-surgery in acute ischemic mitral regurgitation post-percutaneous coronary intervention: a case report
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Ioana Dumitru, Askin Uysal, Joel Shoemaker, Maria Sevillano, Leeandra Schnell, Samip Vasaiwala, and Syed Osman Ali
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Temporary mechanical circulatory support ,Impella ,Cardiogenic shock ,Mitral regurgitation ,Acute coronary syndrome ,Surgery ,RD1-811 ,Anesthesiology ,RD78.3-87.3 - Abstract
Abstract Background Acute ischemic mitral regurgitation (AIMR) is a significant complication of acute coronary syndrome that leads to severe and immediate hemodynamic deterioration and cardiogenic shock. Intra-aortic balloon pumps (IABP) are commonly used to support patients with AIMR as a bridge to surgery, though they may be insufficient in some cases. Case Presentation A 74-year-old male presented with two days of indigestion and evident hypoxia, and an electrocardiogram revealed inferior and lateral ST-elevation myocardial infarction. Angiography demonstrated severe two-vessel coronary disease with a 100% thrombotic occlusion of the second obtuse marginal artery (OM2, culprit lesion) and an 80% stenosis of the proximal left anterior descending artery (LAD). Despite stenting of OM2, the patient remained hypoxic and hypotensive, necessitating escalated support via an IABP. A follow-up echocardiogram revealed severe mitral regurgitation presumed to be AIMR secondary to a ruptured posteromedial papillary muscle with a flail anterior leaflet (A2). Despite aggressive supportive measures with the IABP, the patient’s hemodynamics continued to show cardiogenic shock and clinical status did not improve. However, the patient was required to abstain from surgery for a P2Y12 inhibitor therapy wash out period. Consequently, the IABP was upgraded to Impella 5.5 as bridge-to-surgery support on day 1 post-admission. Subsequently, the patient’s hemodynamics improved, and he underwent a combined mitral valve replacement and coronary artery bypass grafting surgery on day 7 post-admission without incident. The Impella was successfully explanted on day 25 post-admission. Delay in explant was due to hypotension and respiratory status despite normalizing hemodynamics and echocardiogram revealing recovered left ventricular ejection fraction. The patient developed bacterial pneumonia and acute respiratory distress syndrome and expired on day 27 post-admission. Conclusion Although IABP is standard for supporting AIMR patients as a bridge to surgery, it may not provide sufficient hemodynamic support. This case supports a growing body of evidence that alternative forms of hemodynamic support should be considered if the traditional therapeutic modalities for AIMR do not adequately support patients. Clinicians may consider upgrading IABP to Impella to provide increased hemodynamic support and maintain AIMR patient stability while awaiting cardiac surgery.
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- 2024
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97. Investigating the impact of stochasticity on HIV infection dynamics in CD4 $$^{+}$$ + T cells using a reaction-diffusion model
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Nauman Ahmed, Muhammad W. Yasin, Syed Mansoor Ali, Ali Akgül, Ali Raza, Muhammad Rafiq, Shah Muhammad, and Mubasher Ali
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Stochastic HIV model ,Proposed SBE scheme ,Proposed SIFD scheme ,Analysis of schemes ,Simulations ,Medicine ,Science - Abstract
Abstract The disease dynamics affect the human life. When one person is affected with a disease and if it is not treated well, it can weaken the immune system of the body. Human Immunodeficiency Virus (HIV) is a virus that attacks the immune system, of the body which is the defense line against diseases. If it is not treated well then HIV progresses to its advanced stages and it is known as Acquired Immunodeficiency Syndrome (AIDS). HIV is typically a disease that can transferred from one person to another in several ways such as through blood, breastfeeding, sharing needles or syringes, and many others. So, the need of the hour is to consider such important disease dynamics and that will help mankind to save them from such severe disease. For the said purpose the reaction-diffusion HIV CD4 $$^{+}$$ + T cell model with drug therapy under the stochastic environment is considered. The underlying model is numerically investigated with two time-efficient schemes and the effects of various parameters used in the model are analyzed and explained in a real-life scenario. Additionally, the obtained results will help the decision-makers to avoid such diseases. The random version of the HIV model is numerically investigated under the influence of time noise in It $${\hat{o}}$$ o ^ sense. The proposed stochastic backward Euler (SBE) scheme and proposed stochastic Implicit finite difference (SIFD) scheme are developed for the computational study of the underlying model. The consistency of the schemes is proven in the mean square sense and the given system of equations is compatible with both schemes. The stability analysis proves that both schemes and schemes are unconditionally stable. The given system of equations has two equilibria, one is disease-free equilibrium (DFE) and the other is endemic equilibrium. The simulations are drawn for the different values of the parameters. The proposed SBE scheme showed the convergent behavior towards the equilibria for the given values of the parameters but also showed negative behavior that is not biological. The proposed SIFD scheme showed better results as compared with the stochastic SBE scheme. This scheme has convergent and positive behavior towards the equilibria points for the given values of the parameters. The effect of various parameters is also analyzed. Simulations are drawn to evaluate the efficacy of the schemes.
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- 2024
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98. Role of Immunohistochemistry in Categorisation of Metastatic Tumours of Liver: A Cross-sectional Observational Study
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Pooja Nathani, Amit Varma, Syed Sarfaraz Ali, Prakhar Garg, and Garima Malpani
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abdominal lesions ,malignancies ,radiology ,unknown primary ,Microbiology ,QR1-502 ,Chemistry ,QD1-999 - Abstract
Introduction: The liver is the body’s largest solid organ and receives a dual blood supply, making it an easy target for metastases from both extra-abdominal and abdominal lesions. In adults, the most common sites of primary lesions are the breast, colon, lung and pancreas. Liver biopsies are pivotal for managing patients with metastatic diseases, aiding in diagnosis and treatment planning. When primary cancer sites are undetectable, the diagnosis often falls under Carcinoma of Unknown Primary (CUP), which carries a poor prognosis. Immunohistochemistry (IHC) is critical in such cases, using antibodies to identify the cancer’s origin when other methods fail. This technique is vital for confirming known malignancies and diagnosing elusive ones, thus informing treatment and improving patient outcomes. Aim: To study the role of IHC in the categorisation of metastatic tumours of the liver. Material and Methods: A cross-sectional observational study was conducted in the Department of Pathology, Sri Aurobindo Medical College and Postgraduate (PG) Institute, Indore, Madhya Pradesh, India, between March 2021 and April 2024. Core needle biopsy samples of 65 cases were processed and analysed for Haematoxylin and Eosin (H&E) stain and IHC markers. Data on demographics and lesion characteristics were entered into Microsoft Excel and analysed with a trial version of Statistical Package for the Social Sciences (SPSS). Significance was assessed using Pearson’s Chi-square test, with a p-value
- Published
- 2024
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99. Artificial intelligence and 3D subsurface interpretation for bright spot and channel detections
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Yasir Bashir, Muhammad Afiq Aiman Bin Zahari, Abdullah Karaman, Doğa Doğan, Zeynep Döner, Ali Mohammadi, and Syed Haroon Ali
- Subjects
artificial intelligence (ai) ,seismic interpretation ,attributes ,prospect ,hydrocarbon ,Geology ,QE1-996.5 - Abstract
Seismic interpretation is primarily concerned with accurately characterizing underground geological structures & lithology and identifying hydrocarbon-containing rocks. The carbonates in the Netherlands have attracted considerable interest lately because of their potential as a petroleum or geothermal system. This is mainly because of the discovery of outstanding reservoir characteristics in the region. We employed global 3D seismic data and a novel Relative Geological Time (RGT) model using artificial intelligence (AI) to delve deeper into the analysis of the basin and petroleum resource reservoir. Several surface horizons were interpreted, each with a minimum spatial and temporal patch size, to obtain a comprehensive understanding of the subsurface. The horizons were combined with seismic attributes such as Root mean square (RMS) amplitude, spectral decomposition, and RGB Blending, enhancing the identification of the geological features in the field. The hydrocarbon potential of these sediments was mainly affected by the presence of a karst-related reservoir and migration pathways originating from a source rock of satisfactory quality. Our results demonstrated the importance of investigations on hydrocarbon potential and the development of 3D models. These findings enhance our understanding of the subsurface and oil systems in the area.
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- 2024
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100. Multiband MgAl0.05Ge0.95O3:0.3%Pr3+ Persistent Phosphor as Efficient Tracers in Crude Oil Emulsions
- Author
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Syed Niaz Ali Shah and Yafei Chen
- Subjects
Chemistry ,QD1-999 - Published
- 2024
- Full Text
- View/download PDF
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