Technical Acquisition Research Articles

전문대학 교양교육의 실존주의적 고찰 : 만드는 교육에서 만나는 교육으로

Education that turns learners, the subjects of education, into ready-made products will be lonely education and make learners lonely. Liberal arts education in junior colleges should be emphasized from an existentialist perspective. It should move beyond focusing solely on connecting technology and people and pursue connecting people and people and the world. Unlike major education directly related to employment, liberal arts education should not passively accept vocational skills and listed information, but should move in the direction of pursuing a reciprocal relationship with me, you, and the world through encounters with people. Buber's philosophy of encounter can provide meaningful directions for students' subjectivity in learning. Uniform education that is vertically enforced by instructors cannot foster students' subjectivity. Through pedagogical encounters, educators should also become beings who help students grow as subjects and live actively in the world, rather than being educators who are knowledge transfer workers so that they can recognize their own existence and live. Learners at junior colleges are made into technicians or professionals, but rather than being ‘technologists’ or ‘professional’ human-being, they are technicians and professional ‘human-being’. As social beings, humans must develop the ability to judge what is good, good, right, and beautiful in the world. To do so, education that encounters rather than education that creates is required. Liberal arts education at junior colleges requires a cooperative identity that pursues encounters between independent people, rather than a dogmatic identity that only pursues individual technical acquisition and encourages competition with others. Through liberal arts education as encounter education, we can find meaning in loving ourselves, respecting others, and recognizing the world as a place of encounter and living.

Going with the flow: Implementing a 4D flow MRI program at a children's hospital.

Four-dimensional phase contrast MRI (4D flow) has emerged as a versatile imaging technique for comprehensive visualization and both qualitative and quantitative assessment of cardiovascular blood flow. 4D flow is a three-dimensional, time-resolved acquisition that is gated to the cardiac cycle. 4D flow provides cardiovascular velocity and flow assessment across the volume of acquisition and yields a multitude of advanced hemodynamic parameters that help to assess the impact of cardiovascular disease on flow and vice versa, guiding the clinical and surgical management of patients with congenital and acquired heart disease. In the past, lengthy scan acquisition and complex post-processing workflows hindered 4D flow adoption into routine clinical practice. Decreasing image acquisition times and improvements in post-processing techniques have made 4D flow a clinically useful tool. The purpose of this communication is to facilitate more widespread adoption of 4D flow by describing its clinical utility, technical acquisition, optimization, and post-processing in pediatric cardiovascular imaging at our center.

Multi-level meta-analysis of whether fostering creativity during physical activity interventions increases their impact on cognitive and academic outcomes during childhood

Neuroplasticity research supports the idea that varied practice and new environments promote cognitive engagement and enhance learning. Expanding on a meta-analysis of the effect of physical activity interventions on cognition and academic outcomes, we reviewed and quantified the impact of task and environmental factors that foster creative physical activity. Interventions were considered as fostering creative physical activity to a greater extent if (1) they were varied, (2) relied less on technical acquisition, instruction or demonstration, (3) involved open spaces, props, or open-ended instructions, and (4) involved interactions with peers. A wide range of physical activities were considered, from dance to aerobic exercise across 92 studies in 5–12-year-old children. Creativity ratings of physical activity interventions were varied but did not associate with greater beneficial effects on executive functions (k = 45), academic achievement (k = 47), or fluid intelligence (k = 8). Studies assessing on-task behaviour (k = 5) tended not to foster creativity, while reversely studies assessing creativity tended to foster creative physical activities (k = 5). As a group, three studies that fostered more creative PA showed a small significant negative summary effect on cognitive flexibility. Considering qualitative differences in the physical activities performed in schools will improve our understanding of their mechanisms of impact. Future research should consider using more varied measures, including more proximal outcomes that involve body movements (e.g., a Simon Says task to measure inhibitory control).

The role of DSC MR perfusion in predicting IDH mutation and 1p19q codeletion status in gliomas: meta-analysis and technical considerations

PurposeIsocitrate dehydrogenase (IDH) mutation and 1p19q codeletion status are important for managing glioma patients. However, current practice dictates invasive tissue sampling for histomolecular classification. We investigated the current value of dynamic susceptibility contrast (DSC) MR perfusion imaging as a tool for the non-invasive identification of these biomarkers.MethodsA systematic search of PubMed, Medline, and Embase up to 2023 was performed, and meta-analyses were conducted. We removed studies employing machine learning models or using multiparametric imaging. We used random-effects standardized mean difference (SMD) and bivariate sensitivity-specificity meta-analyses, calculated the area under the hierarchical summary receiver operating characteristic curve (AUC) and performed meta-regressions using technical acquisition parameters (e.g., time to echo [TE], repetition time [TR]) as moderators to explore sources of heterogeneity. For all estimates, 95% confidence intervals (CIs) are provided.ResultsSixteen eligible manuscripts comprising 1819 patients were included in the quantitative analyses. IDH mutant (IDHm) gliomas had lower rCBV values compared to their wild-type (IDHwt) counterparts. The highest SMD was observed for rCBVmean, rCBVmax, and rCBV 75th percentile (SMD≈ − 0.8, 95% CI ≈ [− 1.2, − 0.5]). In meta-regression, shorter TEs, shorter TRs, and smaller slice thicknesses were linked to higher absolute SMDs. When discriminating IDHm from IDHwt, the highest pooled specificity was observed for rCBVmean (82% [72, 89]), and the highest pooled sensitivity (i.e., 92% [86, 93]) and AUC (i.e., 0.91) for rCBV 10th percentile. In the bivariate meta-regression, shorter TEs and smaller slice gaps were linked to higher pooled sensitivities. In IDHm, 1p19q codeletion was associated with higher rCBVmean (SMD = 0.9 [0.2, 1.5]) and rCBV 90th percentile (SMD = 0.9 [0.1, 1.7]) values.ConclusionsIdentification of vascular signatures predictive of IDH and 1p19q status is a novel promising application of DSC perfusion. Standardization of acquisition protocols and post-processing of DSC perfusion maps are warranted before widespread use in clinical practice.

A 64‐channel scheme for autism detection via scaled conjugate gradient‐based neural network classification of electroencephalogram ripples' complexity

AbstractThe description of autism spectrum disorder (ASD) includes typically the alterations in social skills and attitude as well as problems of communication. At present, the most promising approaches suggested for ASD automatic diagnosis are the machine learning (ML)‐based procedures that begin by the identification and extraction of the most discriminant features. One of the proposed discriminant features of ASD is electroencephalogram (EEG) entropy that reflects the level of complexity or randomness of brain dynamics. The two main techniques currently used to describe the entropy in ASD are multi‐scale entropy (MSE) and spectral entropy (SE). However, MSE is unable to track the exact frequency content on the different time scales that suffer—themselves—from mismatching. In addition, the outcomes of SE approaches in literature are contradictory and confusing about the altered band, direction of change as well as about the affected brain region. The common point in those SE approaches is the examination of one or more of the well‐known frequency bands: Delta, Theta, Alpha, Beta and low Gamma. Hence, the range of high Gamma ripples (>80 Hz) is barely examined in ASD literature due to the needed high carefulness in its technical acquisition, detection and processing as well as to the common acceptance of the idea that it is rather related to pathological seizure activity; which is a misconception recently refuted. Further, the study of automatic ASD diagnosis based on ripples is almost inexistent in literature. The present work suggests an accurate automatic technique to classify ASD and neuro‐typical EEG entropy based on the whole range of ripples (75–250 Hz): (1) EEG signals are collected (120 ASD and neuro‐typical children) by an efficient 64‐channel system highly suitable in noisy environment with movement artefacts. (2) All signal disturbances are automatically removed. (3) The power spectra of all EEG channels are computed. (4) Shannon entropy values are calculated for the range of ripples without filtering. (5) Scaled Conjugate Gradient‐based Neural Network (NN) classification, k‐fold cross validation and T‐test are applied to entropy values. (6) Statistical assessment is conducted. The best testing and the overall accuracies were found to be 98.9% and 95.0% respectively.

Perianal Imaging in Crohn Disease: Current Status With a Focus on MRI, From the AJR Special Series on Imaging of Inflammation.

Fistulizing perianal disease, a frequent, chronic, and often debilitating manifestation of Crohn disease (CD) in adults and children, has been relatively refractory to treatment in the past. The advent of biologic agents such as anti-tumor necrosis factor-α and cellular therapies, used in conjunction with a range of surgical interventions, has greatly improved disease outcomes, although complete remission can still be elusive. This Special Series review considers current perianal imaging options, specifically pelvic MRI and endoanal and transperineal ultrasound, as well as their roles in the diagnosis, management, and assessment of treatment response. Pelvic MRI is the first-line modality for imaging perianal CD, given the complexity of fistulas encountered in CD. MRI technical acquisition parameters for adults and children and an approach to MRI interpretation and reporting are provided. Anatomic classification systems for fistulizing peri-anal disease are presented. We also explore the history, current landscape, and future developments of MRI features of perianal disease as imaging biomarkers, to quantify activity and severity and to consider CD MRI-based inflammatory activity scores. We discuss the reliability and validation of a number of indexes (including the pediatric MRI-based perianal CD [PEMPAC] index, the MR novel index for fistula imaging in CD [MAGNIFI-CD], the Van Assche index, and the modified Van Assche index), their potential to quantify treatment response, and possible prognostic capabilities.

Three‐dimensional gynaecological ultrasound, part one: How, when and why?

AbstractMost high‐end ultrasound systems now incorporate three‐dimensional imaging as a standard feature. As such, the use of three‐dimensional ultrasound is becoming routine in many facets of medical ultrasound, especially obstetrics and gynaecology. Three‐dimensional ultrasound can enhance or even alter a diagnosis in many gynaecological pathologies. However, like any technique, the usefulness and accuracy of the application relies on the operator having adequate application knowledge and technical acquisition skills to be able to use it to its full potential. This is the first part of a two‐part series on this topic. This article serves to educate sonographers and other ultrasound users on how to incorporate a three‐dimensional ultrasound assessment into their routine gynaecological examinations, why this should be done and how to overcome some of the pitfalls encountered with this technique.

Quantitative diffusion MRI of the abdomen and pelvis.

Diffusion MRI has enormous potential and utility in the evaluation of various abdominal and pelvic disease processes including cancer and noncancer imaging of the liver, prostate, and other organs. Quantitative diffusion MRI is based on acquisitions with multiple diffusion encodings followed by quantitative mapping of diffusion parameters that are sensitive to tissue microstructure. Compared to qualitative diffusion-weighted MRI, quantitative diffusion MRI can improve standardization of tissue characterization as needed for disease detection, staging, and treatment monitoring. However, similar to many other quantitative MRI methods, diffusion MRI faces multiple challenges including acquisition artifacts, signal modeling limitations, and biological variability. In abdominal and pelvic diffusion MRI, technical acquisition challenges include physiologic motion (respiratory, peristaltic, and pulsatile), image distortions, and low signal-to-noise ratio. If unaddressed, these challenges lead to poor technical performance (bias and precision) and clinical outcomes of quantitative diffusion MRI. Emerging and novel technical developments seek to address these challenges and may enable reliable quantitative diffusion MRI of the abdomen and pelvis. Through systematic validation in phantoms, volunteers, and patients, including multicenter studies to assess reproducibility, these emerging techniques may finally demonstrate the potential of quantitative diffusion MRI for abdominal and pelvic imaging applications.

Ways to eliminate inflections in teaching disciplines of intellectual property

The history of introduction of disciplines devoted to the methodology of scientific and technical creativity, acquisition, protection, protection and commercialization of intellectual property rights in the Kyiv Polytechnic Institute (KPI) is presented chronologically. The positive and negative consequences of teaching disciplines in intellectual property and patent science are analyzed. Emphasis was placed on a strategic mistake when two disciplines (one legal, the other integrated engineering creative direction) merged into one and two teachers of two different departments of KPI began to teach.

ENVIRONMENTAL CHALLENGES, TECHNICAL SOLUTIONS AND STANDARD OPERATING PROCEDURES FOR DATA COLLECTION IN PHOTOGRAMMETRIC STUDIES TOWARD A UNIFIED DATABASE OF OBJECTS AND FEATURES IN UNDERWATER CAVES IN MEXICO

Abstract. Mexico’s Yucatan Peninsula is predominantly formed as a karstic terrain on limestone substrates where hundreds of kilometres of now submerged caves constitute extended networks of galleries partially accessible through cenotes, or karstic windows. These cenotes and underwater caves contain numerous objects of great biological, historical, cultural and/or paleontological significance: human and animal remains, ancient Maya artifacts, ancient mines and traces of early human activities. Photogrammetric studies by technical divers allow researchers to access a vast array of data pertaining to objects or features which would otherwise remain inaccessible. However, the harshness of the study environment poses technical acquisition challenges which must be specifically addressed. This paper introduces these environmental challenges, including the geological properties of local caves, bottom composition, ceiling percolation and topography, as well as the intrinsic difficulties linked to the absence of light and the limited time available in an underwater work setting. Technical acquisition solutions, setups and standard operating procedures are then proposed to overcome these challenges. A further consideration is added pertaining to the overall goal of creating a global database for the study objects, thus requiring a unified format for all data: unique identifier, geolocation, minimum resolution, and the like. The authors, focusing on the fieldwork and the data-collection aspect of the photogrammetric study, rather than the data processing and metrological steps, define a new image acquisition methodology built around a compact and replicable setup which will allow the documenting of objects previously out of reach of traditional setups.

Come è cambiato il lavoro del pediatra al tempo del Covid

<b>Background -</b> International literature documents that children and adolescents infected with the coronavirus develop moderate symptoms and a favourable prognosis. However, the pandemic has had a major impact on children’s health and the paediatricians’ work. The clinical work of paediatricians has significantly changed. <br> <b>Aims, materials and methods -</b> A qualitative pilot research was conducted thanks to the participation of 13 privileged witnesses. Through an anonymous questionnaire, the present research detected the changes in the overall activity of the Italian family paediatrician and the impact of the pandemic on their professional activity during the lockdown. The thematic analysis of the answers made it possible to focus on the main changes of the paediatric profession and explore the characteristics of its resilience, highlighting the most significant difficulties that paediatricians faced during Phase 1. <br> <b>Results and discussion -</b> What was lost in the clinical activity, towards the patient with acute pathology or in the prevention activity, has been regained with a new use of known means, such as telephone and email, or thanks to the use of new tools such as WhatsApp and video (telemedicine): those that were subsidiary means before the pandemic have become effective and permanent endowments of the paediatrician after the lockdown. Together with the technical acquisition, the professional identity has been strengthened in terms of shared professionalism, especially as to relationships with colleagues and the collaboration of families.

Oncologically Relevant Findings Reporting and Data System (ONCO-RADS): Guidelines for the Acquisition, Interpretation, and Reporting of Whole-Body MRI for Cancer Screening.

Acknowledging the increasing number of studies describing the use of whole-body MRI for cancer screening, and the increasing number of examinations being performed in patients with known cancers, an international multidisciplinary expert panel of radiologists and a geneticist with subject-specific expertise formulated technical acquisition standards, interpretation criteria, and limitations of whole-body MRI for cancer screening in individuals at higher risk, including those with cancer predisposition syndromes. The Oncologically Relevant Findings Reporting and Data System (ONCO-RADS) proposes a standard protocol for individuals at higher risk, including those with cancer predisposition syndromes. ONCO-RADS emphasizes structured reporting and five assessment categories for the classification of whole-body MRI findings. The ONCO-RADS guidelines are designed to promote standardization and limit variations in the acquisition, interpretation, and reporting of whole-body MRI scans for cancer screening. Published under a CC BY 4.0 license Online supplemental material is available for this article.

The Use of Predictive Modeling in the Evaluation of Technical Acquisition Performance Using Survival Analysis

In the recent statistical literature, the difference between explanatory and predictive statistical models has been emphasized. One of the tenets of this dichotomy is that variable selection methods should be applied only to predictive models. In this paper, we compare the effectiveness of the acquisition strategies implemented by Google and Yahoo for the management of innovations. We argue that this is a predictive situation and thus apply lasso variable selection to a Cox regression model in order to compare the Google and Yahoo results. We show that the predictive approach yields different results than an explanatory approach and thus refutes the conventional wisdom that Google was always superior to Yahoo during the period under consideration.

Variation in competition performance, number of races, and age: Long-term athlete development in elite female swimmers.

While talent development and the contributing factors to success are hardly discussed among the experts in the field, the aim of the study was to investigate annual variation in competition performance (AVCP), number of races per year, and age, as potential success factors for international swimming competitions. Data from 40’277 long-course races, performed by all individual female starters (n = 253) at the 2018 European Swimming Championships (2018EC) for all 10 years prior to these championships, were analyzed. Relationships between 2018EC ranking and potential success factors, i.e., AVCP, number of races per year, and age, were determined using Pearson’s correlation coefficient and multiple linear regression analysis. While AVCP was not related to ranking, higher ranked swimmers at the 2018EC swam more races during each of the ten years prior to the championships (P < 0.001). Additionally, older athletes were more successful (r = -0.42, P < 0.001). The regression model explained highly significant proportions (P < 0.001) and 43%, 34%, 35%, 49% of total variance in the 2018EC ranking for 50m, 100m, 200m, and 400m races, respectively. As number of races per year (β = -0.29 –-0.40) had a significant effect on ranking of 50-400m races, and age (β = -0.40 –-0.61) showed a significant effect on ranking over all race distances, number of races per year and age may serve as success factors for international swimming competitions. The larger number of races swum by higher ranked female swimmers may have aided long-term athlete development regarding technical, physiological, and mental skill acquisitions. As older athletes were more successful, female swimmers under the age of peak performance, who did not reach semi-finals or finals, may increase their chances of success in following championships with increased experience.

CT imaging, classification, and complications of acute pancreatitis.

Acute pancreatitis is an increasingly common condition and can result in significant morbidity and mortality. Contrast enhanced computed tomography (CECT) is the primary initial imaging modality in the characterization of acute pancreatitis. In this article, we provide sample CECT technical acquisition parameters for pancreatic imaging. We also review the classification systems for acute pancreatitis and give examples of common and uncommon complications of acute pancreatitis.

Internal R&amp;D and Acquisition Performance of Chinese Pharmaceutical Firms: Moderation Effect of Acquisition Motive and Corporate Ownership

Although corporate capability has been recognized as a key factor affecting corporate acquisition performance, the role of R&amp;D capability in acquisition performance has not been fully explained. The aim of this paper was to research the impact of internal R&amp;D on acquisition performance according to a sample of 215 acquisitions of Chinese listed pharmaceutical companies from 2012 to 2016. First, it was found that R&amp;D has a significant negative effect on acquisition performance. Furthermore, it was confirmed that the acquisition motive and the ownership of the acquiring firm have a moderating effect on the relationship between R&amp;D and acquisition performance. Compared to non-technical acquisitions, the negative effect of internal R&amp;D on acquisition performance was reduced for technical acquisitions. Compared with non-state-owned-enterprise acquisition, the negative effect of internal R&amp;D on the acquisition performance of state-owned enterprises was weakened. Our study enriches the research of the path dependence theory on the acquisition performance of enterprises and also the interpretation of acquisition performance on the basis of internal and external innovation and the institutional theory.

Influence of Field Intensity on Magnetic Resonance Imaging for Obtaining Three‐Dimensional Printed Models of Articular Patellar Cartilage

In recent research developed by our group, it was characterized and described the technical acquisition parameters of magnetic resonance imaging (MRI), with magnetic field intensity (MFi) of 1.5T, and its processing for printing three‐dimensional (3D) models of articular cartilage of patella. Such methodology should significantly contribute to the improvement of diagnosis, therapeutic planning and outcomes in the treatment of chondral patellar lesions. On the other hand, the influence of MFi in the processing and quality of 3D printed models was not established. The aim of this research was to characterize such influence, comparing qualitatively images and models generated from the intensities of 1.5 and 3T. For this, a healthy individual, female, 25 years old and with no orthopedic antecedents or complaints compatible with patellar chondropathy was evaluated. The patient was submitted to MRI of the knee in equipment of 1.5 T (HDxT ‐ General Electric®) and 3T (MD750 ‐ General Electric®). Volumetric axial sequences were established from 3D T2 Cube FS and 3D Fiesta HR sequences for both intensities. The 3D Merge FS sequence, available exclusively in the 3T equipment, was also considered in the analyzes. The images were processed in InVesalius® and Magics® software for the construction of 3D models in a virtual environment. The influence of MFi was established considering the image processing and the quality achieved in the virtual and printed models. The results showed that all sequences, in both intensities, allowed the generation of the models. In contrast, the quality achieved was higher in models obtained by the 3D Merge FS sequence. It was concluded that the MFi influences the process of obtaining 3D models of patellar articular cartilage. Therefore, the use of higher MFi is recommended due to the availability of more efficient acquisition sequences, such as Merge FS.This abstract is from the Experimental Biology 2019 Meeting. There is no full text article associated with this abstract published in The FASEB Journal.

How to Get Started Performing Supermicrosurgical Lymphaticovenular Anastomosis to Treat Lymphedema.

Recent advancements in microsurgery and supermicrosurgery have made effective lymphedema treatment a surgical reality. When comparing the 2 currently available procedures, lymphaticovenular anastomosis (LVA) and vascularized lymph node transfer, vascularized lymph node transfer is more frequently performed owing to technical unfamiliarity with supermicrosurgery and uncertainty in patient selection, technical execution, and procedural outcome. To date, the author has performed more than 250 cases of supermicrosurgical LVAs. In this article, the author shares his approach in technical acquisition, how to get over the learning curve using a simulation model, patient selection, LVA-specific technical pearls, outcome assessment, and finally how to team up with other lymphedema-related specialists. After reading this paper, the readers should have enough knowledge to get started building a surgical lymphedema program.

Diversified Network Effects on Innovation Performance in Tanzania: Innovation Strategy in Service Firms

The study examined the issue of innovation with a focus on innovative diversified network in Tanzania service firms. The study aim was to assess the effect of diversified network which regarded as innovation strategy in firm’s innovation performance. By empirically tested network variables named collaboration, information exploration and exploitation and technology acquisition. The regression results indicated information exploration and exploitation to be highly significant network over collaboration and technical acquisition in service firms in Tanzania. This imply that the service firms in Tanzania are tend to rely on information exploitation and exploration network compared to other networks such as collaboration and technology acquisition. The study made contribution to the literature regarding innovation in developing countries in service firms, non-patentable innovative firms in particular.

A Novel Study of Project Financing in Sport: Technical Acquisition of Infrastructure Using Financial Investment Simulation

A Novel Study of Project Financing in Sport: Technical Acquisition of Infrastructure Using Financial Investment Simulation