The Role of AI in Creating Realistic and Engaging AR Pet Games: The Case of Niantic’s Peridot

Samia Alaqeel,Suh Dong-Hee,Song Eun-Jee 한국디지털콘텐츠학회 2023 The Journal of Contents Computing Vol.5 No.2

This study aimed to identify the role of artificial intelligence (AI) in creating more realistic and engaging AR pet games focusing on Niantics Peridot as a case study. Peridot is an AR pet game that leverages AI techniques such as convolutional neural networks (CNN), computer vision and semantic segmentation. The study investigates whether AI techniques play a role in improving realism and player engagement in AR pet games. In order to answer the question of the study, a comprehensive approach which combined qualitative and quantitative data analysis was adopted. The findings of this study provide valuable insights to future game developers who seek to create realistic and engaging AI-enabled AR games.

Obstructive Sleep Apnea in Women

Samia Ayub,Christine HJ Won 대한수면연구학회 2019 Journal of sleep medicine Vol.16 No.2

Obstructive sleep apnea is known to be more prevalent in men. In women the prevalence varies throughout her life span as she goes through different stages; puberty, reproductive years, pregnancy and postmenopausal state. The disparity of prevalence within the lifespan of women and in comparison, to men is not only due to different pathophysiologic factors like upper airway anatomy, chemoreflexes, sex hormones but also due to under recognition of sleep disordered breathing in women due to atypical presentation and difference in polysomnographic phenotypes. This review summarizes the literature regarding sleep-disordered breathing in women, its pathophysiology, sex differences in phenotypes and implications of sex differences on management.

The effect of gravity and hydrostatic initial stress with variable thermal conductivity on a magneto-fiber-reinforced

Samia M. Said,Mohamed I. A. Othman 국제구조공학회 2020 Structural Engineering and Mechanics, An Int'l Jou Vol.74 No.3

The present paper is concerned at investigating the effect of hydrostatic initial stress, gravity and magnetic field in fiber-reinforced thermoelastic solid, with variable thermal conductivity. The formulation of the problem applied in the context of the three-phase-lag model, Green-Naghdi theory with energy dissipation, as well as coupled theory. The exact expressions of the considered variables by using state-space approaches are obtained. Comparisons are performed in the absence and presence of the magnetic field as well as gravity. Also, a comparison was made in the three theories in the absence and presence of variable thermal conductivity as well as hydrostatic initial stress. The study finds applications in composite engineering, geology, seismology, control system and acoustics, exploration of valuable materials beneath the earth’s surface.

Modeling of memory-dependent derivative in a rotating magneto-thermoelastic diffusive medium with variable thermal conductivity

Samia M. Said,Elsayed M. Abd-Elaziz,Mohamed I.A. Othman 국제구조공학회 2020 Steel and Composite Structures, An International J Vol.36 No.6

The purpose of this paper is to depict the effect of rotation and initial stress on a magneto-thermoelastic medium with diffusion. The problem discussed within memory-dependent derivative in the context of the three-phase-lag model (3PHL), Green-Naghdi theory of type III (G-N III) and Lord and Shulman theory (L-S). Analytical expressions of the considered variables are obtained by using Laplace-Fourier transforms technique. Numerical results for the field quantities given in the physical domain and illustrated graphically in the absence and presence of a magnetic field, initial stress as well as the rotation. The differences in variable thermal conductivity are also presented at different parameter of thermal conductivity. The numerical results of the field variables are presented graphically to discuss the effect of various parameters of interest. Some special cases are also deduced from the present investigation.

Wave propagation in a two-temperature fiber-reinforced magneto-thermoelastic medium with three-phase-lag model

Samia M. Said,Mohamed I.A. Othman 국제구조공학회 2016 Structural Engineering and Mechanics, An Int'l Jou Vol.57 No.2

A general model of equations of the two-temperature theory of generalized thermoelasticity is applied to study the wave propagation in a fiber-reinforced magneto-thermoelastic medium in the context of the three-phase-lag model and Green-Naghdi theory without energy dissipation. The material is a homogeneous isotropic elastic half-space. The exact expression of the displacement components, force stresses, thermodynamic temperature and conductive temperature is obtained by using normal mode analysis. The variations of the considered variables with the horizontal distance are illustrated graphically. Comparisons are made with the results of the two theories in the absence and presence of a magnetic field as well as a two-temperature parameter. A comparison is also made between the results of the two theories in the absence and presence of reinforcement.

Measuring Risk of Portfolio: GARCH-Copula Model

( Samia Ben Messaoud ),( Chaker Aloui ) 세종대학교 경제통합연구소 2015 Journal of Economic Integration Vol.30 No.1

In this paper, we use the copulas functions in financial application, namely to examine the assumption of asymmetric dependence and to calculate some measures of risk. The first step consists of deducing filtered residuals for each return series by an asymmetric Glosten-Jagannathan-Runkle Generalized Autoregressive conditional Hetero skedasticity (GJR-GARCH) model. For the second step, we use an estimation of a Generalized Pareto Distribution for the upper and lower tails to determine the empirical semiparametric marginal Cumulative Distribution Function. In our approach, we propose to use a portfolio consisting of increments from five countries. The GJR-GARCH copula is then applied to the data and used to reduce correlation between the simulated residuals of each series. The marginal distributions of filtered residuals are fitted with a semi-parametric Cumulative Distribution Function using the copulas’ functions and Generalized Pareto Distribution for tails. For each series, we compute Value-at-Risk and Conditional Value-at-Risk.

Synthesis of Novel Benzofuran and Related Benzimidazole Derivatives for Evaluation of In Vitro Anti-HIV-1, Anticancer and Antimicrobial Activities

Samia M. Rida,Soad A. M. El-Hawash,Hesham T. Y. Fahmy,Aly A. Hazzaa,Mostafa M. M. El-Meligy 대한약학회 2006 Archives of Pharmacal Research Vol.29 No.10

Previously, we synthesized and evaluated several benzofuran derivatives containing heterocyclic ring substituents linked to the benzofuran nucleus at C-2 by a two- to four-atom spacer as potential anti-HIV-1, anticancer and antimicrobial agents. Among these derivatives, NSC 725612 and NSC 725716 exhibited interesting anti-HIV-1 activity. To further investigate the structure-activity relationship, we synthesized several new benzofuran derivatives derived from 2-acetylbenzofuran (2, 3a-c) and 2-bromoacetylbenzofuran (6; 7a,b; 8a,b). The compounds were designed to comprise the heterocyclic substituents directly linked to the benzofuran nucleus at C-2. Moreover, various related benzimidazoles derived from 2-acetylbenzimidazole and from 2-cyanomethylbenzimidazole (12a,b; 13a,b; 15; 16a,b) were also prepared as isosteres. The synthesized compounds were preliminarily evaluated for their in vitro anti-HIV-1, anticancer and antimicrobial activity. Compounds 2, 3a, 3b, and 12b showed weak anti-HIV-1 activity. Compound 6 exhibited mild activity against S. aureus, while compound 15 had mild activity towards S. aureus and C. albicans. However, no significant anticancer activity was observed with any of the tested compounds. From these results, we conclude that the presence of the spacer between the heterocyclic substituent and the benzofuran nucleus may be essential for the biological activity.

Synthesis and In Vitro Evaluation of Some Novel Benzofuran Derivatives as Potential Anti-HIV-1, Anticancer, and Antimicrobial Agents

Samia M. Rida,Soad A. M. El-Hawash,Hesham T. Y. Fahmy,Aly A. Hazza,Mostafa M. M. El-Meligy 대한약학회 2006 Archives of Pharmacal Research Vol.29 No.1

A novel series of 1-(1-benzofuran-2-yl-ethylidene)-4-substituted thiosemicarbazides (2a-d) along with some derived ring systems: substituted-2,3-dihydro-thiazoles (3a-c, 4a-f) and thiazolidin- 4-ones (5a-d and 6a-d), were synthesized. In addition, cyanoacetic acid-(1-benzofuran- 2-yl-ethylidene) hydrazide (7) was used to prepare another new series of compounds consisting of substituted pyridin-2(1H)-ones (8a-c); 2-thioxo-2,3-dihydro-thiazoles (9a-d) and 2-thioxo-2,3-dihydro-6H-thiazolo[4,5-d]pyrimidin-7-ones (10a-c, 11a-c). The absolute configuration of compound 5c was determined by X-ray crystallography. The compounds prepared were evaluated for their in vitro anti-HIV, anticancer, antibacterial, and antifungal activities. Among the tested compounds, compounds 5c and 9a produced a significant reduction ㅐㄹ the viral cytopathic effect (93.19% and 59.55%) at concentrations >2.0×10-4 M and 2.5×10-5 M respectively. Compound 9a was confirmed to have moderate anti-HIV activity. Compounds 2a, 2d, and 5c showed mild antifungal activity. However, none of the tested compounds showed any significant anticancer activity.

Robust Adaptive Controller for the Diesel Engine Air Path with Input Saturation

Samia Larguech,Sinda Aloui,Olivier Pagès,Ahmed El Hajjaji,Abdessattar Chaari 제어·로봇·시스템학회 2019 International Journal of Control, Automation, and Vol.17 No.10

In this paper, we design an adaptive controller for the diesel engine air path with a priori consideration of actuator saturation effects to regulate the exhaust manifold pressure and the compressor flow rate. The originality of the proposed approach is the integration of an auxiliary system to compensate the saturation effects. Simulation results of the diesel engine air path are given to show the efficiency of the proposed approach.

Impact of Rumors and Misinformation on COVID-19 in Social Media

Samia Tasnim,Md Mahbub Hossain,Hoimonty Mazumder 대한예방의학회 2020 예방의학회지 Vol.53 No.3

The coronavirus disease 2019 (COVID-19) pandemic has not only caused significant challenges for health systems all over the globe but also fueled the surge of numerous rumors, hoaxes, and misinformation, regarding the etiology, outcomes, prevention, and cure of the disease. Such spread of misinformation is masking healthy behaviors and promoting erroneous practices that increase the spread of the virus and ultimately result in poor physical and mental health outcomes among individuals. Myriad incidents of mishaps caused by these rumors have been reported globally. To address this issue, the frontline healthcare providers should be equipped with the most recent research findings and accurate information. The mass media, healthcare organization, community-based organizations, and other important stakeholders should build strategic partnerships and launch common platforms for disseminating authentic public health messages. Also, advanced technologies like natural language processing or data mining approaches should be applied in the detection and removal of online content with no scientific basis from all social media platforms. Furthermore, these practices should be controlled with regulatory and law enforcement measures alongside ensuring telemedicine-based services providing accurate information on COVID-19.