American Scientific Research Journal for Engineering, Technology, and Sciences (ASRJETS)
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AA Review of the Effectiveness of Symmetric and Asymmetric Cryptography Methods with Multi-Level Key Management in Wireless Networks
No full textWireless networks have nearly no limitations when it comes to communication systems powered by electricity, which are growing all over the globe. However, it is essential to implement robust security measures as sophisticated cyber attacks evolve. The study mainly focuses on symmetric and asymmetric key cryptography, especially their efficiency. The suggested system makes key distribution easy by not only eliminating complicated setups but also employing a secure photon recorder and strict communication protocols. The research combines theoretical analysis and practical simulations to prove the applicability of the proposed method and to determine its effectiveness in maintaining mobile network environments with high security. Moreover, the technique is adaptable to the demanding constraints of modern wireless communication systems with little difficulty. Moreover, the paper includes a detailed comparison of the existing solutions and a set of future research directions to effectively overcome the current barriers related to key management schemes in the area. The main objective is to enable the wireless domain to have a more efficient, scalable, and secure infrastructure
Synthesis and Evaluation on the Performance of Ferrofluid in Wastewater Treatment
Full text linkWater contamination is created by industrial and agricultural development and is a primary source of water pollution. Iron oxides and magnetite are examples of IONPs with a high surface area and adsorption capacity that can easily bind to numerous molecules, allowing them to remove pollutants such as turbidity, metals, organic debris, and bacteria from aqueous effluents. To further understand the interaction of magnetite with bacterial cells, functional groups on the surface of bacteria were investigated. Ferrofluids are a simple and environmentally friendly method of removing harmful germs from water streams. The ideal cell: magnetite ratio was 1:50, which removed bacterial cells from E. coli, P. putida, and M luteus with 94.8% and 99.7%, respectively. In addition, The removal efficiency of ferrofluid alone was found to be the highest at 98% among all the other combinations tested in effective turbidity decrease. The most important details of the study are that magnetite has a maximum efficiency of 98% decrease in turbidity ., and that effective removal of most metals from water using magnetite and magnetic separation was achieved at 300 mg/l magnetite. Finally, the study looked at the capabilities of various types of oils to act as carriers and how they can increase microplastic removal effectiveness. The best formulation for ferrofluid preparation was discovered to be 1:2.5 (volume of oil) utilizing lubricating oil, which successfully eliminated 99% of microplastics from aqueous medium
Potential and Opportunities for the Development of Religious Tourism in Western Crete, Greece
Full text linkThe tourism industry is a flourishing global industry with an increasing number of people travelling each year all over the world. Religion used to be since ancient times a motivation for people to travel, visit and pray in holy places and sites. Religion tourism is also growing nowadays while many people visit holy and sacred places for pilgrimage or for seeing religious monuments which are important for their faith. The island of Crete is a famous tourism destination in eastern Mediterranean basin with mild climate, plenty of sunshine, sandy beaches and many natural attractions visited by more than five million of tourists every year. Crete has also many religious, cultural and historical monuments established during the past twenty centuries from different civilizations which are attractive to visitors. The possibility of developing religious tourism in western Crete has been investigated and its impacts on the local stakeholders have been identified. The existing infrastructure in the island favors the development of religious tourism while the local policies support it. The Orthodox Christianity recognizes the links between religion, society and ecology and the development of religious tourism should be combined with ecological sensitization and/or social activities. The implemented SWOT and PESTEL analyses indicated that the potential for the development of religious tourism in western Crete is high resulting to many socio-economic benefits to local stakeholders. The tourism product of the island, which is currently focused on the “sea and sun tourism”, will be differentiated and enriched with the development of cultural tourism. Our results could be useful to policy makers and to local stakeholders who wish to promote the religious tourism with simultaneous promotion of environmental sustainability in the island.
Cracked Tooth Syndrome Review
Full text linkReview Objective: The treatment of fractured tooth syndrome (CTS) is extremely challenging, primarily because it requires precise pre-restorative diagnosis and decision-making. This paper examines treatment methods for teeth affected by CTS and proposes a pertinent clinical decision tree.
Recent advancements have revealed that CTS is characterized by the occurrence of incomplete fractures in the original crowns of teeth.
The choice of preparation method and direct or indirect restorative procedures significantly impacts the long-term outlook for the tooth. Nevertheless, the complex causes, intricate diagnosis, and subjective choices regarding preparation provide difficulties in therapeutic care. Therefore, an informed decision tree\u27s guidance becomes crucial. This decision tree should give primary importance to the logical preservation of tooth structure, the optimization of preparatory processes, and the careful assessment of restorative implications and choices. The diagnosis and choices made before restoring the tooth have a significant impact on the complex process of caring for cracked tooth syndrome (CTS). This review examines treatment techniques for teeth impacted by CTS and presents a relevant clinical decision tree.
Conclusion: Tackling the reparative needs of CTS requires a methodical approach. Implementing an informative and universally applicable decision tree can greatly improve daily clinical practice
Utilize Dense Optical Flow for Small Flying Targets Detection and Tracking
Full text linkThe detection of small targets remains a critical challenge within the field of image processing. Traditional techniques, such as image subtraction with frame-to-frame registration, suffer from high false alarm rates. Even state-of-the-art deep learning architectures, like YOLO and Masked R-CNN, exhibit limitations in this domain. In overextended distances, the inherent feature quality of small targets degrades significantly, leading to a scarcity of informative data for conventional detection algorithms. Consequently, accurate visual recognition becomes a particularly hard task.This work presents a novel detection approach that draws inspiration from the human visual attention mechanism. By leveraging dense optical flow, the model prioritizes moving objects within the scene, facilitating effective target detection. Furthermore, the proposed method employs K-Means clustering to achieve robust foreground-background separation based on color intensity characteristics. To address the limitations of dense optical flow with stationary targets, a dedicated tracking algorithm is also introduced. Our approach demonstrated a high level of accuracy (98%) when evaluated on unseen test data. Additionally, the algorithm functioned in real-time, enabling immediate processing
The Synergistic Effect of Two Remedial Plant Extracts on Hyperglycemia and Selected Associated Complications in Streptozotocin-induced Rats
Full text linkThe study investigated the synergistic effects of remedial plant extracts from Musa accuminata (banana) and Momordica charantia (bitter melon) on hyperglycemia and associated complications in streptozotocin-induced diabetic rats—a widely accepted model for studying diabetes mellitus and its complications. Diabetes mellitus, characterised by elevated blood glucose levels and potential organ system complications, prompted the exploration of herbal remedies with minimal adverse effects. Rats induced with diabetes were treated with Musa accuminata extract, Momordica charantia extract, and a combination of both extracts. Blood glucose levels were monitored, and markers of complications, including blood pressure and weight management, were assessed.
Results revealed that the combined treatment demonstrated a synergistic effect, effectively lowering blood glucose levels (350.43±0.14 to 291.59±23.26) compared to individual extract treatments: Banana extract, Bitter melon extract and Glibenclamide (350.43±0.10 to 300.39±21.02, 347.34±0.06 to 292.23±24.53 and 348.30±0.12 to 287.64±24.06) respectively. Furthermore, the combined treatment exhibited significant improvements in blood pressure (127.92/91.25mmHg, 129.19/98.06, 127.20/99.58mmHg and 130.75/99.83mmHg, combined extract, banana bitter melon and Glibenclamide respectively) and weight management in the animal model, surpassing the outcomes of glibenclamide and untreated diabetic rats. The average weight gain across all the groups ranges from 250g to 321g per rat.These findings highlight the potent anti-hyperglycemic and anti-complication properties of the Musa accuminata and Momordica charantia extracts and their combination in streptozotocin-induced diabetic rats. It is suggested that additional research be done on the underlying mechanisms and clinical trials to confirm the plant extracts\u27 medicinal potential in treating diabetes mellitus and its related problems
A Comprehensive Literature Study on Technology Pertaining to Interstellar Travel and the Current Human Standing
Full text linkHumans are always fascinated by looking at the night sky. Numerous worlds are waiting to be explored. In this paper, we have reviewed the work done by researchers that will help us answer the possibility of Interstellar travel. What is our current stance on the journey of Interstellar travel? What are the challenges that we have to counter? What are the limitations of the human body in the course of interstellar travel? Can our Human body withstand the cosmic rays that can smash a whole spaceship within a glimpse of seconds? And even if we have countered the challenges, how will we decide our destination star or planet? Are there any criteria for choosing a habitable planet? Our present technologies can’t take the responsibility to make us travel millions of light years. So which technologies can become a favorable candidate for interstellar travel? How can Genetic Engineering become a boon for interstellar travelers? How will we communicate during unbound and unpredictable isolation? Lastly, what is our view on the possibility of Interstellar travel and what are the future scope and possibility of interstellar travel
Gamma Cameras: Exploring the Technology, Applications, and Future Prospects
Full text linkGamma cameras, pivotal in nuclear medicine imaging, provide crucial insights into the physiological functions of organs and tissues. This study delves into the technology behind gamma cameras, their applications, and future prospects. Gamma rays, high-energy electromagnetic radiation, are detected and converted into images by gamma cameras. The research combined field observations at a tertiary hospital’s Nuclear Medicine Centre with a comprehensive literature review. Direct interactions with medical professionals and observations of gamma camera procedures provided practical insights into the operational principles and clinical applications. Gamma cameras, evolving from early scintillation counters to modern digital detectors, consist of key components like collimators, scintillators, photomultiplier tubes, and advanced imaging software. These devices are integral in diagnosing and monitoring conditions in cardiology, oncology, neurology, endocrinology, and orthopedics. Technological advancements, such as solid-state detectors, multi-pinhole collimators, and AI-enhanced image processing, have significantly improved image quality, diagnostic accuracy, and patient safety. Future prospects include personalized medicine, molecular imaging, AI and machine learning integration, multi-modal imaging, and theranostics, promising enhanced diagnostic precision and treatment outcomes. This study underscores the evolving capabilities of gamma cameras and their indispensable role in modern healthcare
Could Econometric Models Predict Higher Inflation? Time Series Modelling and Inflation Rate Forecasting
Full text linkThis research utilizes annual time series data on HICP to identify the most suitable econometric model for forecasting the inflation rate in Poland. In this study, we have compared and applied the Autoregressive Moving Average (ARMA) model and the Vector Autoregressive (VAR) model to predict the annual inflation rate using data from January 2002 to December 2020. Various methods are employed to determine the optimal model specifications, followed by the generation of forecasts within a rolling estimation window. The results consistently indicate that the ARMA (2, 0) model outperforms other specifications in forecasting Polish inflation. These findings suggest that the inflation rate is expected to continue its downward trend in the coming years. Consequently, this study offers valuable insights for guiding future actions and policymaking in response to prospective inflation scenarios
PET/CT Scan: Bridging Metabolic and Anatomical Imaging
Full text linkPositron Emission Tomography combined with Computed Tomography (PET/CT) has emerged as a transformative imaging modality in medical diagnostics, particularly in oncology, neurology, and cardiology. By merging PET\u27s functional imaging with CT\u27s anatomical precision, PET/CT provides unparalleled insights into the body\u27s metabolic and structural aspects, facilitating accurate disease detection, characterization, and staging. This study employs a comprehensive approach, incorporating direct observations at a leading PET/CT center, expert interviews, and an extensive literature review. Key findings reveal the fundamental properties of positrons and their application in PET imaging, tracing the evolution of PET/CT technology from its inception to its current state. Detailed descriptions of PET/CT components, including the PET scanner\u27s radiopharmaceuticals and detector systems and the CT scanner\u27s X-ray generation and detection mechanisms, underscore the technological sophistication of this hybrid imaging modality. The operational mechanism of PET/CT, from radiopharmaceutical administration to image fusion, highlights its capability to provide comprehensive diagnostic information. Clinical applications demonstrate PET/CT\u27s vital role in oncology for tumor detection and staging, in neurology for brain disorder evaluation, and in cardiology for assessing myocardial perfusion and viability. Despite challenges such as high costs and radiation exposure, advancements in radiopharmaceuticals and hybrid imaging technologies, such as PET/MRI, promise to enhance PET/CT\u27s clinical utility. As PET/CT continues to evolve, it stands as a cornerstone of modern diagnostic imaging, significantly impacting personalized medicine by offering new avenues for disease detection and treatment