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Go to Editorial ManagerThe standardization and preprocessing decisions determine the performance, reproducibility and generalizability of Artificial Intelligence (AI) models in cervical spine Magnetic Resonance Imaging (MRI). In this research, the author suggests a six-step standardized preprocessing pipeline that can help with the reliable analysis of heterogeneous MRI data using AI. It is obtained by the pipeline based on recurrent methodological patterns found in the literature, focusing on the operations reported to stabilize image intensity distribution and reduce unwanted sources of variability. A systematic literature review was screened on 2,882 records, and 43 articles were included per the inclusion criteria. Due to the large variability of imaging procedures, preprocessing plans, and reported outcomes metrics, no quantitative meta-analysis was performed and a qualitative synthesis was done. Basic methods such as segmentation, denoising, intensity normalization, augmentation, bias-field correction were consistently reported to improve AI performance. Studies evaluating tasks such as normalization and automated segmentation reported accuracies of 94% to 99.95%. Moreover, less-specific harmonization methods like Combatting Batch Effects (ComBat), z-score normalization and histogram matching, and Generative Adversarial Network (GAN)-based ones were also often attributed with lower scanner- and site-based variations. Regardless of these improvements, the AI workflow remains unstable because of the irregularity of predefined parameters, unequal standards of acquisition, and lack of methodological reporting. In efforts to deal with such challenges, the current work proposes a methodical six-stage preprocessing model that consists of quality control, noise removal, intensity normalization, anatomical segmentation, harmonization and validation. The suggested workflow model offers a practical and transparent basis of clinically translatable AI usage in cervical spine MRI based on conventional mathematical equations and clear documentation.
Architecture represented a product of successive stages with integrated interconnected rings that seek to build architectural thought. While the beginning of an output is related to a need decision, it is achieved by accepting a certain idea. The idea, however, is related to the act, in giving output that is the result of a particular principle in the construction and installation of architecture. Thus their development according to the needs of society.Thus, a number of influences play an active role in the nature of the acceptability of the (architectural) output, especially in relation to the projection of that thought on the architectural output. In addition, the conformity of the acceptability of this output to the recipient, through the emergence of needs that motivate the designer to use the vocabulary building (may be local) familiar to the recipient, from the simplification of meanings in architecture and make them more familiar and closer to the recipient to satisfy the need of them. The accepted product is associated with the personality of the architect. The more mature his thinking and the greater his potential in innovation and research, the greater his acceptance. In the impact of output on the receiver, related to what happens in the design process, and the type of thought that the designer can access and employ in the production. As opposed to extinguishing the need of a user and receiver.It is, therefore, Has given building effect of the design act, t To reach a product that is thoughtfully acceptable, by skipping the deficit with multiple admissions.In contrast to the influence of thought on the composition of the product.And both of them, and by the adoption of the tools of man's superficial and internal and spiritual acceptance of the acceptance of the product of architecture.
The strategy of reusing materials and architectural elements in new buildings and locations after extracting them from previous structures and sites, known historically as "spolia," is now an important approach in contemporary architectural project design. This strategy showcases a balance between tradition and innovation, transforming heritage elements into new architectural pieces that carry contemporary artistic and cultural values. The purpose of this research is to uncover the forms of this practice and the meanings or purposes associated with it, within a theoretical framework that serves as a tool for designers when dealing with such projects. The research reviews studies on the subject and extracts the most important terms, then moves on to analyse several worldwide case studies of contemporary projects that have applied the concept of spolia reuse. The purpose is to enrich the framework by highlighting the reused architectural elements and their new functions, as well as the meanings and interpretations linked to these cases. The research identifies key indicators, including respect for heritage, creative artistic expression, sustainability, and recycling. The aim of the article is to shed light on the importance and effectiveness of using the concept of spolia reuse in the design of modern architectural projects and to promote a sustainable and innovative architectural culture.
This extensive and thorough review aims to systematically outline, clarify, and examine the numerous exploratory data analysis techniques that are employed in the intriguing and rapidly advancing domain of functional MRI research. We will particularly focus on the wide array of software applications that are instrumental in facilitating and improving these complex and often nuanced analyses. Throughout this discourse, we will meticulously assess the various strengths and limitations associated with each analytical tool, offering invaluable insights relevant to their application and overall efficacy across diverse research contexts and environments. Our aim is to create a comprehensive understanding of how these tools can be best utilized to enhance research outcomes. Through this analysis, we aspire to equip researchers with critical knowledge and essential information that could profoundly influence their methodological selections in upcoming studies. By carefully considering these factors, we hope to contribute positively to the ongoing progression of this important field of inquiry, fostering innovation and enhancing the impact of future research findings in functional MRI studies.
The assessment of prosthetic aortic valves through echocardiography, a pivotal noninvasive tool, encounters challenges, with discordant findings compared to invasive measurements, particularly in transvalvular gradients. To address these complexities, this comprehensive review article explores diverse methodologies and modalities for assessing prosthetic aortic valve performance. As these life-saving devices advance in complexity, the demand for precise and innovative assessment techniques intensifies. This journey through established and emerging modalities aims to inform clinical practice, foster experimental innovation, and enhance patient care in the realm of aortic valve prosthetic assessment. Ultimately, a profound understanding of the hemodynamic milieu engendered by aortic prosthetic valves serves as the cornerstone for optimizing valve design and clinical utility. The primary objective of this comprehensive review is to elucidate, with utmost precision, the multifaceted methodologies employed in the investigation and evaluation of mechanical prosthetic aortic valve.
Hydraulic structures, including cascade aerators, may be acknowledged as important components in improving aeration efficiency because of the intense turbulent mixing combined with large air bubble entrapment at these structures. The main objective of the present study is to achieve maximum aeration efficiency and enhance the concentration of dissolved oxygen in the water since this is an important factor in improving water quality. The present study aims to determine the most proper geometric and dynamic parameters of a typical square-shaped stepped cascade with a total height of 120 cm, and sex steps. A tread of each step is 10 cm and a rise of each step is 20 cm, where aeration efficiency is maximized. The results of the study revealed that the maximum value of water aeration efficiency, meaning an increase in dissolved oxygen in the water using a stepped cascade aerator happened when flow rates of 15 L/min, 25 L/min, and 35 L/min with aeration efficiencies of 22%, 37%, and 42% respectively. Finally, the optimization of flow rates in aeration systems can lead to improved water quality parameters. The most important feature of the present study is the innovation of a natural method of water treatment that relies on the principle of mixing, coagulation, and flocculation by hydraulic methods, which works to reduce the costs of operation.