An algorithm for controlling the transmission of video streams in a flying ad hoc network

This article discussing the enhancement of video surveillance in various territories through the implementation of a flying ad hoc network (FANET). The primary objective of the surveillance is for search and rescue operations. To optimize the quality of FANET video broadcasting, a decision-making algorithm for video stream management is introduced. This algorithm evaluates the likelihood of achieving high-quality video transmission. Depending on the assessed probabilities, the algorithm recommends one of the following actions: initiating a new video stream transmission, reducing the average length of wireless channels, or discontinuing the transmission of low-information video streams. Computational experiments demonstrate a significant improvement in the accuracy of decision-making regarding the management of video stream transmission to FANET when utilizing the proposed algorithm

Functionalized gold nanorod nanocomposite system to modulate differentiation of human mesenchymal stem cells into neural-like progenitors

A 2D multifunctional nanocomposite system of gold nanorods (AuNRs) was developed. Gold nanorods were functionalized via polyethylene glycol with a terminal amine, and, were characterized using transmission and scanning electron microscopy, ultra violet-visible and X-ray photoelectron spectroscopy, and Zeta-potential. The system was cytocompatible to and maintained the integrity of Schwann cells. The neurogenic potential of adipose tissue – derived human mesenchymal stem cells (hMSCs) was evaluated in vitro. The expression pattern and localization of Vimentin confirmed the mesenchymal origin of cells and tracked morphological changes during differentiation. The expression patterns of S100β and glial fibrillary acidic protein (GFAP), were used as indicator for neural differentiation. Results suggested that this process was enhanced when the cells were seeded on the AuNRs compared to the tissue-culture surface. The present study indicates that the design and the surface properties of the AuNRs enhances neural differentiation of hMSCs and hence, would be beneficial for neural tissue engineering scaffolds

Causes and Consequences of Overcrowding Inside Emergency Departments on Patients Care at Main Governmental Hospitals in Gaza Strip

Background: The Canadian Association of Emergency Physicians [CAEP] and National Emergency Nurses Affiliation [NENA] defines Emergency department (ED) overcrowding as a situation in which the demand for emergency services exceeds the ability of physicians and nurses to provide quality care within a reasonable time.Al-Quds Universit

A comparative analysis of the energy dissipation efficiency of various piano key weir types

Water levels in main or sub-channels can be controlled and regulated with the help of weirs. Piano key weirs (PKWs), a type of non-linear weir, include side crests, as well as front and back crests. Due to the fact that the PKW is a modern, newly installed infrastructure, several studies addressing the distribution of energy for each type are not yet available. This study examines the amount of energy dissipated for the four primary types, as well as the impact of altering the width ratio and the height ratio. To investigate the effects on energy dissipate, and compare the energy dissipate efficiency of the main types of PKWs, each type of PKW was created with five models using width ratios (W i/W o = 1.25, 1, and 0.8) and height ratios (P/L = 0.11 and 0.078). The energy dissipation depends on type of PKW and decreases as the width ratio increases by 5% and the energy dissipation increases, with the rise in the height ratio by 4%. Due to the overhang effect, type-C is the energy type that dissipates the most, making it the best example of PKW in terms of energy dissipation efficiency. Type-A follows type-C in this respect

A comparative analysis of the energy dissipation efficiency of various piano key weir types

A COMPARATIVE ANALYSIS OF THE ENERGY DISSIPATION EFFICIENCY OF VARIOUS PIANO KEY WEIR TYPES Open engineering (Rights reserved) (-) A comparative analysis of the energy dissipation efficiency of various piano key weir types / Alghazali, Najm O. S. (CC BY) (-

GFRP\u27s Bond Slip Evaluation in Conventional and High Volume Fly Ash Concrete (HVFAC)

Due to the significant increase in the demand for eco-friendly materials, conventional concrete and mild steel have become less recommended due to the excessive CO2 emission of conventional concrete and corrosion issues of mild steel. Thus, other eco-friendly alternatives have risen to partially replace these two materials. The first alternative is glass fiber reinforced polymers and the other is high volume fly ash concrete. This study investigates the bond-slip performance of glass fiber rebars implanted in conventional and high volume fly ash concrete. The results were then compared to bond-slip results yielded from using mild steel. A total of twenty four cylinder specimens were tested in this study. Two levels of high volume fly ash replacement of cement were used, 50% and 70%. Additionally, 13 mm (1/2 in.) and 19 mm (3/4 in.) glass fiber and mild steel rebars were investigated. The study was conducted following the recommendation of RILEM. The results indicated that, regardless the type of concrete, glass fiber had less bond strength than that resulted from using mild steel

Spectrum of Ground Glass Opacities in Chest CT of COVID-19 Patients in Karbala, Iraq

Objective: To describe the ground-glass opacities (GGO) seen in chest CT scans of COVID-19 patients and to estimate the association between these opacities and the time of clinical presentation.&#x0D; Patients and methods: A cross-sectional study involving 81 COVID-19 confirmed patients in Imam Al-Hussein Medical city in Karbala-Iraq during the period from March 1st to April 20, 2020. Chest CT scan findings were evaluated by 2 radiologists and categorized accordingly. Chi-square test was used for statistical analysis and a P value of less than 0.05 was considered statistically significant.&#x0D; Results: The mean age ± standard deviation of patients was 53.5 ± 17.1 years, with male predominance as 63 (77.8%) of cases were males. Nearly half of the patients were presented within the second week of starting the sign and symptoms. GGO was present in 79 scans (97.5%), followed by consolidation opacity in 29 patients (35.8%). Four types of GGO were described. Bilateral multiple subpleural GGO was the most prevalent type. There was a significant association between late time of patient presentation and more extensive GGO type.&#x0D; Conclusion: Chest CT scan is valuable in the diagnosis and management of COVID-19 cases. The presence of GGO in CT scan of a patient that previously had no chest illness is highly suggestive of COVID-19 disease, different types of GGO were seen. Bilateral confluent type of GGO is associated with more serious and delayed status and warns the need for intensive care unit admission.</jats:p

Peningkatan Hasil Belajar Passing Kaki Bagian Dalam dengan Menggunakan Modifikasi Permainan Sepak Bola pada Siswa SD Negeri 375 Lalong Selatan

This study aims to improve the learning outcomes of passing using the inner foot with modified soccer games. This research uses the PTK method. The population of this study were all IVa students of SDN 375 Lalong Selatan totaling 25 students divided into two classes. The sample used was all fourth grade students of SDN 375 South Lalong. Data collection techniques carried out tests of inner leg passing ability. The results of this study indicate that in cycle I there were 5 students who were complete, meaning that the classical completeness reached (20%) in the knowledge aspect, there were 9 students who were complete, meaning that the classical completeness reached (36%) in the attitude aspect and there were 10 students who were complete, meaning that the classical completeness reached (40%) in the skill aspect. while in the results of cycle II there were 25 students who were complete, while in the results of cycle II there were 25 students who were complete, meaning that the classical completeness reached (100%) in the knowledge aspect, there were 23 students who were complete, meaning that the classical completeness reached (92%) in the attitude aspect, there were 24 students who were complete, meaning that the classical completeness reached (96%) in the skill aspect. This shows that there is a significant increase between cycle I and cycle II. Thus the modification of soccer games can improve the learning outcomes of inner leg passing.Penelitian ini bertujuan untuk meningkatkan hasil belajar passing menggunakan kaki bagian dalam dengan modifikasi permainan sepak bola pada siswa kelas 4a SD Negeri 375 Lalong Selatan. Penelitian ini menggunakan metode penelitian Tindakan kelas dengan jumlah sampel 25 siswa. Hasil penelitian ini menunjukan bahwa pada siklus I terdapat 5 siswa yang tuntas, artinya ketuntasan klasikal mencapai (20%) dalam aspek pengetahuan, terdapat 9 siswa yang tuntas, artinya ketuntasan klasikal mencapai (36%) dalam aspek sikap dan terdapat 10 siswa yang tuntas, artinya ketuntasan klasikal mencapai (40%) dalam aspek keterampilan, sedangkan pada hasil siklus II terdapat 25 siswa yang tuntas, artinya ketuntasan klasikal mencapai (100%) dalam aspek pengetahuan, terdapat 23 siswa yang tuntas, artinya ketuntasan klasikal mencapai (92%) dalam aspek sikap, terdapat 24 siswa yang tuntas, artinya ketuntasan klasikal mencapai (96%) dalam aspek keterampilan. Hal ini menunjukan bahwa adanya peningkatan yang signifikan antara siklus I dan siklus II. Dengan demikian modifikasi permainan sepak bola dapat meningkatkan hasil belajar passing kaki bagian dalam

Molecular Characterization, Virulence Determinants, and Antimicrobial Resistance Profile of Methicillin-Resistant Staphylococcus aureus in the North of Iran; a High Prevalence of ST239-SCC mec III/t037 Clone

Objectives: Emergence and prevalence of methicillin-resistant Staphylococcus aureus (MRSA) have become a major universal health concern, limiting therapeutic options. Methods: A total number of 37 MRSA isolates, including 19 clinical isolates from hospitalized patients and 18 colonizing isolates from health care workers were identified from 3 hospitals, in Gorgan, North of Iran. Antimicrobial susceptibility test was performed using the disk diffusion method and E-test. The presence of virulence and antibiotic resistance determinants were evaluated by PCR. The genotypical characterization was further analyzed using multi-locus sequence, spa, staphylococcal cassette chromosome, mec (SCCmec), and agr typing. Results: The frequency of MRSA among S. aureus isolates was 38.14 (37/97). The most frequent S. aureus resistant isolates were found to be obstinate against penicillin (98) and gentamicin (82.5). Additionally, the lowest resistance rates were found against daptomycin (0), vancomycin (2.7), and quinupristin-dalfopristin (5.4). All MRSA isolates were susceptible to daptomycin with minimum inhibitory concentration (MIC)50/MIC90 of 0.25/0.5 μg/mL. One isolate belonging to sequence type 239 (ST239)-SCCmecIII/t037 clone (MIC �16 μg/mL) was resistant to vancomycin. All but 1 isolate that shares ST22-SCCmec IV/t790 strain were positive for both tsst and pvl genes. The most predominant MRSA isolates (27) were associated with ST239-SCCmec III/t037, and ST239-SCCmec III/t924 (16.2) clones, subsequently. In our study, circulating MRSA strains were genetically diverse with a high prevalence of ST239-SCCmec III/t037 clone. Conclusion: These findings emphasize the need for future and continuous surveillance studies on MRSA to prevent the dissemination of existing multidrug resistance MRSA clones in an effective manner. © 2021 S. Karger AG, Basel. All rights reserved

Molecular Characterization, Virulence Determinants, and Antimicrobial Resistance Profile of Methicillin-Resistant Staphylococcus aureus in the North of Iran; a High Prevalence of ST239-SCC mec III/t037 Clone

Objectives: Emergence and prevalence of methicillin-resistant Staphylococcus aureus (MRSA) have become a major universal health concern, limiting therapeutic options. Methods: A total number of 37 MRSA isolates, including 19 clinical isolates from hospitalized patients and 18 colonizing isolates from health care workers were identified from 3 hospitals, in Gorgan, North of Iran. Antimicrobial susceptibility test was performed using the disk diffusion method and E-test. The presence of virulence and antibiotic resistance determinants were evaluated by PCR. The genotypical characterization was further analyzed using multi-locus sequence, spa, staphylococcal cassette chromosome, mec (SCCmec), and agr typing. Results: The frequency of MRSA among S. aureus isolates was 38.14 (37/97). The most frequent S. aureus resistant isolates were found to be obstinate against penicillin (98) and gentamicin (82.5). Additionally, the lowest resistance rates were found against daptomycin (0), vancomycin (2.7), and quinupristin-dalfopristin (5.4). All MRSA isolates were susceptible to daptomycin with minimum inhibitory concentration (MIC)50/MIC90 of 0.25/0.5 μg/mL. One isolate belonging to sequence type 239 (ST239)-SCCmecIII/t037 clone (MIC �16 μg/mL) was resistant to vancomycin. All but 1 isolate that shares ST22-SCCmec IV/t790 strain were positive for both tsst and pvl genes. The most predominant MRSA isolates (27) were associated with ST239-SCCmec III/t037, and ST239-SCCmec III/t924 (16.2) clones, subsequently. In our study, circulating MRSA strains were genetically diverse with a high prevalence of ST239-SCCmec III/t037 clone. Conclusion: These findings emphasize the need for future and continuous surveillance studies on MRSA to prevent the dissemination of existing multidrug resistance MRSA clones in an effective manner. © 2021 S. Karger AG, Basel