Academic literature on the topic 'Consecutive appearance'
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Journal articles on the topic "Consecutive appearance"
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Bourla, Dan H., Assaf Dotan, Dov Weinberger, Nirit Bourla, and Israel Kremer. "Consecutive Appearance of Corneal Subepithelial Infiltrates After Intravitreous Bevacizumab Injections." Cornea 29, no. 6 (2010): 686–87. http://dx.doi.org/10.1097/ico.0b013e3181ba0cc7.
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Marques, Diego. "The Order of Appearance of Product of Consecutive Fibonacci Numbers." Fibonacci Quarterly 50, no. 2 (2012): 132–39. http://dx.doi.org/10.1080/00150517.2012.12428007.
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HAERS, HENDRIK, PASCALE SMETS, PASCALINE PEY, KOEN PIRON, SYLVIE DAMINET, and JIMMY H. SAUNDERS. "CONTRAST HARMONIC ULTRASOUND APPEARANCE OF CONSECUTIVE PERCUTANEOUS RENAL BIOPSIES IN DOGS." Veterinary Radiology & Ultrasound 52, no. 6 (2011): 640–47. http://dx.doi.org/10.1111/j.1740-8261.2011.01843.x.
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Marques, Diego. "The Order of Appearance of the Product of Consecutive Lucas Numbers." Fibonacci Quarterly 51, no. 1 (2013): 38–43. http://dx.doi.org/10.1080/00150517.2013.12427968.
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Marques, Diego, and Pavel Trojovský. "The Order of Appearance of the Product of Five Consecutive Lucas Numbers." Tatra Mountains Mathematical Publications 59, no. 1 (2014): 65–77. http://dx.doi.org/10.2478/tmmp-2014-0019.
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Abstract Let Fn be the nth Fibonacci number and let Ln be the nth Lucas number. The order of appearance z(n) of a natural number n is defined as the smallest natural number k such that n divides Fk. For instance, z(Fn) = n = z(Ln)/2 for all n > 2. In this paper, among other things, we prove that for all positive integers n ≡ 0,8 (mod 12).
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Schoffel, André, Jana Koefender, Diego Pascoal Golle, and Juliane Nocolodi Camera. "Carpochron: a concept for the time interval between the appearance of fruits in consecutive harvests." Comunicata Scientiae 15 (April 30, 2024): e4119. http://dx.doi.org/10.14295/cs.v15.4119.
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The aim of this research was to estimate the base temperature for the appearance of fruits at harvest point in the strawberry and to propose a concept to represent the time required for the appearance of fruits in consecutive harvests. The experiment was conducted in 2021 in four seedling transplanting seasons: May (season 1), June (season 2), July (season 3) and August (season 4) of two cultivars: Fronteras and Merced. Twenty-four consecutive fruit harvests were carried out from September 9, 2021, to December 1, 2021, when the number, length (cm), diameter (mm), and fresh weight of the fruits (g) were evaluated. The base temperature for the fruit emission of the strawberry was calculated using the method of the smallest mean square error. Carpochron was estimated at each season and for each cultivar, obtaining a simple linear regression between the number of fruits and the accumulated thermal sum (ºC day) and the number of days after transplanting (DAT), using as base temperature the one estimated in this work. The base temperature for the appearance of consecutive fruits at the harvest point in the strawberry is 11ºC. Carpochron increases with the delay of the transplanting season and the values ranged from 81.97ºC fruit day to 144.93ºC fruit day for cultivars Merced and Fronteras.
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Patterson, Stephanie K., Mark A. Helvie, Lynn K. Joynt, Marilyn A. Roubidoux, and Myla Strawderman. "Mammographic appearance of breast cancer in African-American women: Report of 100 consecutive cases." Academic Radiology 5, no. 1 (1998): 2–8. http://dx.doi.org/10.1016/s1076-6332(98)80005-6.
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Souto Valente, Denis. "Thigh Cellulite Treatment Using Laser-Assisted Liposuction: A Consecutive Descriptive Case Series." International Journal of Transplantation & Plastic Surgery 6, no. 2 (2022): 1–5. http://dx.doi.org/10.23880/ijtps-16000171.
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Cellulite is a highly prevalent condition affecting up to 90% of post pubertal females. The most common reasons patients seek cellulite treatment include emotional, psychological, and practical motivations. Laser-assisted liposuction is a minimally invasive procedure able to produce skin and subcutaneous changes. This research was elaborated as a prospective longitudinal study, aiming to estimate the repercussions of laser-assisted liposuction on thigh cellulite aspects and distribution. Consecutive outpatients with preoperative thigh cellulite submitted to laser-assisted liposuction, using the Lipo One Step HD device, were recruited from the senior author's private practice. Preoperative and 3 months following surgery pictures were obtained. These photographs were assessed by two independent plastic surgeons to evaluate thigh cellulite appearance before and after surgery using the Clinician Reported Photonumeric Cellulite Scale (CR-PCS). Twelve patients entered the study. All patients were female and white. The mean age was 42.5 years (SD ± 9.3), and the mean Body Mass Index was 26.7 kg/m2 (SD ± 2.1). The mean CR-PCS preoperative was 3.75, and 3 months following laser-assisted liposuction was 2.53 (p=0.02). We have obtained comprehensive results demonstrating the role of laser-assisted liposuction on thigh cellulite. In addition, the evidence from our research suggests that laser-assisted liposuction reduces thigh cellulite.
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Valiente García, David, Lorenzo Fernández Rojo, Arturo Gil Aparicio, Luis Payá Castelló, and Oscar Reinoso García. "Visual Odometry through Appearance- and Feature-Based Method with Omnidirectional Images." Journal of Robotics 2012 (2012): 1–13. http://dx.doi.org/10.1155/2012/797063.
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In the field of mobile autonomous robots, visual odometry entails the retrieval of a motion transformation between two consecutive poses of the robot by means of a camera sensor solely. A visual odometry provides an essential information for trajectory estimation in problems such as Localization and SLAM (Simultaneous Localization and Mapping). In this work we present a motion estimation based on a single omnidirectional camera. We exploited the maximized horizontal field of view provided by this camera, which allows us to encode large scene information into the same image. The estimation of the motion transformation between two poses is incrementally computed, since only the processing of two consecutive omnidirectional images is required. Particularly, we exploited the versatility of the information gathered by omnidirectional images to perform both an appearance-based and a feature-based method to obtain visual odometry results. We carried out a set of experiments in real indoor environments to test the validity and suitability of both methods. The data used in the experiments consists of a large sets of omnidirectional images captured along the robot's trajectory in three different real scenarios. Experimental results demonstrate the accuracy of the estimations and the capability of both methods to work in real-time.
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Hamada, Kenta, Noriya Uedo, Chiaki Kubo, et al. "Endoscopic appearance of esophageal xanthoma." Endoscopy International Open 07, no. 10 (2019): E1214—E1220. http://dx.doi.org/10.1055/a-0966-8544.
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Abstract Background and study aims Esophageal xanthomas are considered to be rare, and their endoscopic diagnosis has not been fully elucidated. The aim of the present study was to determine the characteristics of the endoscopic appearance of esophageal xanthomas. Patients and methods This was a retrospective study of consecutive patients with histologically diagnosed esophageal xanthomas at a referral cancer center in Japan. The endoscopic appearance, by magnifying or image-enhanced endoscopy, and histological findings of esophageal xanthomas were investigated. Results Seven patients (six men and one woman) were enrolled. All of the patients had a solitary lesion, and the median size was 2 mm (range, 1 – 5 mm). Conventional white-light endoscopy showed the lesions as flat areas with yellowish spots in four cases and slightly elevated yellowish lesions in three cases. Magnifying endoscopy, performed in six patients, revealed the lesions as areas with aggregated minute yellowish spots with tortuous microvessels inside. Magnifying narrow-band imaging contrasted the yellowish spots and microvessels better than white-light endoscopy. In all lesions, histological examination showed that the yellowish spots corresponded to papillae filled with foam cells. The foam cells were strongly immunopositive for CD68, and in all lesions, CD34-positive intrapapillary capillaries surrounded the aggregated foam cells. The different morphologies of the flat and slightly elevated lesions corresponded to different densities of papillae filled with foam cells. Conclusions Magnifying endoscopy revealed minute yellowish spots with tortuous microvessels inside. These correspond well with histological findings and so may be useful in the diagnosis of esophageal xanthomas.
Books on the topic "Consecutive appearance"
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Gross, Wolfgang L., and Julia U. Holle. Clinical features of ANCA-associated vasculitis. Oxford University Press, 2013. http://dx.doi.org/10.1093/med/9780199642489.003.0131.
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The primary ANCA-associated vasculitides are granulomatosis with polyangiitis (Wegener's, GPA), microscopic polyangiitis (MPA), and eosinophilic granulomatosis with polyangiitis (EGPA, Churg-Strauss syndrome, CSS). They predominantly affect small (and medium-sized) vessels and share a variable association with ANCA (anti-neutrophil cytoplasm antibody) directed against neutrophil proteinase 3 (PR3, mainly in GPA) and myeloperoxidase (MPO, mainly in MPA and CSS). Crescentic necrotizing glomerulonephritis and alveolar haemorrhage due to pulmonary capillaritis represent classical (vasculitic) organ manifestations of the ANCA-associated vasculitides (AAV). MPA occurs as a 'pure' small (to medium-size) vessel vasculitis, whereas GPA and CSS are characterized by additional distinct clinical and pathological features. In GPA, granulomatous lesions of the upper and/or lower respiratory tract are a hallmark of the disease. Granulomatous lesions may be large in appearance and occur as space-consuming, infiltrating, and destructive inflammatory masses. GPA is believed to follow a stagewise course with an initial localized form, restricted granulomatous lesions of the upper and/or lower respiratory tract without clinical signs of vasculitis, and a consecutive generalization to systemic vasculitis which may be either non-organ-threatening (early systemic) or organ- and life- threatening (generalized GPA). Rarely, patients arrest in the localized stage and do not progress to systemic disease. In EGPA asthma, hypereosinophilia and eosinophilic organ infiltration (e.g. eosinophilic myocarditis) are typical features of the disease apart from vasculitis. Similarly to GPA, EGPA follows a stagewise course: asthma and eosinophilia may precede full-blown disease for several months or years. Recent cohort studies suggest different phenotypes in EGPA (predominantly vasculitic and MPO-ANCA-positive and predominantly with eosinophilic organ infiltration, usually ANCA-negative). This chapter focuses on the clinical features of the primary AAV and their outcome.
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Suleiman, Susan Rubin. Introduction. University of Illinois Press, 2017. http://dx.doi.org/10.5406/illinois/9780252036941.003.0016.
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These four short essays, written over a twenty-year period, are pièces de circonstance, each one linked to a specific occasion: the publication of a book by a young author, an op-ed piece for a daily newspaper, a symposium on Israel organized by left-wing Jewish intellectuals, the appearance of a film that would become revered around the world. Beauvoir’s essays here are modest efforts, in two cases simply brief prefaces to a much longer work; but read consecutively, they offer an excellent glimpse into the evolution of French public discourse about the Holocaust and about Israel. They also show Beauvoir’s own unwavering commitment to thinking about the implications and consequences of the major atrocity of the twentieth century, as well as her personal interest in the Jewish state....
Book chapters on the topic "Consecutive appearance"
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Kashima, Tomoko, Yukiko Orito, and Hiroshi Someya. "Consecutive Meals Planning by Using Permutation GA: Evaluation Function Proposal for Measuring Appearance Order of Meal’s Characteristics." In Lecture Notes in Computer Science. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-61824-1_40.
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Lee, Christine U., and James F. Glockner. "Case 17.18." In Mayo Clinic Body MRI Case Review, edited by Christine U. Lee and James F. Glockner. Oxford University Press, 2014. http://dx.doi.org/10.1093/med/9780199915705.003.0436.
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39-year-old woman with Crohn disease and suspected primary sclerosing cholangitis Consecutive IP images from a 2D SPGR IP-OP acquisition (Figure 17.18.1) demonstrate high signal intensity within the IVC and hepatic veins on the superior 2 images which disappears on the bottom images. Note the appearance of high signal intensity within the aorta and celiac artery on the inferior images....
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Sturza, Rodica, Iurie Scutaru, and Gheorghe Duca. "Redox Processes in Grapes Processing." In Environmental and Technological Aspects of Redox Processes. IGI Global, 2023. http://dx.doi.org/10.4018/979-8-3693-0512-6.ch015.
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The redox processes are an unavoidable and very complex part of winemaking. The chapter examines the main redox processes that take place during grape subsequent technological processes, maturation, and aging of wine. Some of them lead to the ennobling of wines and their stabilization, while others cause the alteration, and degradation of wines, and the appearance of numerous defects of wines. The consecutive, parallel, and spontaneous development of multiple redox processes, and their dependence on pedoclimatic, agro-technical, and technological conditions influence the structure, appearance, aroma/bouquet, taste, and stability of wines. The knowledge of the production mechanisms, the influencing factors, of the particularities allows the realization of precision vinification, characterized by the reduction of the additive and subtractive technological interventions, of the quantities of adjuvants, and the production of ecological wines. Monitoring redox processes during alcoholic fermentation through oxygen management is essential for the quality of wines.
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Caplin, William E. "General Concepts of the Classical Cadence." In Cadence. Oxford University PressNew York, 2024. https://doi.org/10.1093/oso/9780190056445.003.0002.
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Abstract This chapter examines notions traditionally attached to the concept of cadence in general, retains those features finding genuine expression in the classical style, and investigates problematic ideas that have the potential of producing theoretical and analytical confusion. It is argued that cadence effects formal closure only at middle-ground levels of structure; a cadential progression is highly constrained in its harmonic content; a particular scalar segment of a bass-line melody (engaging the third through sixth scale degrees) is especially associated with cadence; cadential function precedes the moment of cadential arrival; the music following this arrival may be postcadential in function; cadential content must be distinguished from cadential function; some cadences have a limited formal scope; the appearance of consecutive cadences poses significant problems of interpretation; cadence represents a formal end, not a rhythmic or textural stop; and cadential strength can be distinguished in its syntactical and rhetorical aspects.
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"Strategic maneuvering in medical consultations." In Argumentation between Doctors and Patients. John Benjamins Publishing Company, 2021. https://doi.org/10.1075/z.235.c6.
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Content description When doctors and patients argue their case, they are always confronted with the “argumentative predicament” that all argumentative moves they make need to be reasonable and effective at the same time. To reconcile the simultaneous pursuit of maintaining reasonableness and aiming for effectiveness, in medical consultations strategic maneuvering is required. Strategic maneuvering has three aspects, which affect each other mutually: selection from the topical potential of argumentative moves, adaptation to audience demand, and exploitation of presentational devices. In a medical consultation, strategic maneuvering takes place in all stages of the argumentative process and each argumentative move has both a reasonableness dimension and an effectiveness dimension. A series of argumentative moves is said to combine into a fully-fledged argumentative strategy when the three aspects of strategic maneuvering are coordinated within each argumenatiave move, as well as across all consecutive argumentative moves that are part of the series. When the doctor’s or the patient’s strategic maneuvering derails, this results in fallacies, which may easily go unnoticed by the other party because fallacious argumentative moves have a similar appearance as sound argumentative moves.
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Parent S., Roy-Beaudry M., Joncas J., et al. "French-Canadian validation of the Spinal Appearance Questionnaire (SAQ) in the adolescent patients at a scoliosis clinic and its clinical application." In Studies in Health Technology and Informatics. IOS Press, 2008. https://doi.org/10.3233/978-1-58603-888-5-341.
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The SAQ was developed to measure patients' and parents' perceptions of their spinal deformity appearance. The objective of this study was to provide the French-Canadian spine community with a validated version of the SAQ. The SAQ was distributed to 254 French-speaking consecutive patients at the scoliosis clinics of CHU Sainte-Justine, in addition to the SRS Outcome Questionnaire (SRS-22). 182 fully completed questionnaires were obtained: 161 girls, 21 boys, mean age 15.0 (2.5) Cobb angle between 0 and 88 degrees. Intra-domain correlations were moderate to high (0.34 to 0.80, p<0.01) indicating that the items of the scales demonstrated a satisfactory internal coherence. Comparison of scores between SAQ-fv items and SRS-22 domains showed only high correlations (0.36 to 0.56, p<0.01) for the self-image domain, as expected in this test of convergent validity. A clear gradient in SAQ-fv scores according to Cobb angles was found in every scales. BMI, age, Risser and gender did not influence the questionnaire scores. Pre-operative patients' and parents' scores were significantly more affected when compared to other groups (observation, braced and post-op). In the SAQ-fv second part (Q9-Q16), a U-shaped distribution and a higher disagreement between parents and patients were observed, questioning the response scale construction. The SAQ-fv shows satisfactory validity and reliability in spinal deformity appearance evaluation. Since it is independent of patient's general characteristics it can discriminate between relevant clinical values and provide useful information for the clinical management of AIS patients.
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Ong, Ee Ping, and Weisi Lin. "Video Object Segmentation." In Encyclopedia of Information Communication Technology. IGI Global, 2009. http://dx.doi.org/10.4018/978-1-59904-845-1.ch106.
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Video object segmentation aims to extract different video objects from a video (i.e., a sequence of consecutive images). It has attracted vast interests and substantial research effort for the past decade because it is a prerequisite for visual content retrieval (e.g., MPEG-7 related schemes), object-based compression and coding (e.g., MPEG-4 codecs), object recognition, object tracking, security video surveillance, traffic monitoring for law enforcement, and many other applications. Video object segmentation is a nonstandardized but indispensable component for an MPEG4/7 scheme in order to successfully develop a complete solution. In fact, in order to utilize MPEG-4 object-based video coding, video object segmentation must first be carried out to extract the required video object masks. Video object segmentation is an even more important issue in military applications such as real-time remote missile/vehicle/soldier’s identification and tracking. Other possible applications include home/office/warehouse security where monitoring and recording of intruders/foreign objects, alarming the personnel concerned or/and transmitting the segmented foreground objects via a bandwidth-hungry channel during the appearance of intruders are of particular interest. Thus, it can be seen that fully automatic video object segmentation tool is a very useful tool that has very wide practical applications in our everyday life where it can contribute to improved efficiency, time, manpower, and cost savings.
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Castillo, P. A., A. Fernández-Ares, P. García-Fernández, et al. "Studying Individualized Transit Indicators Using a New Low-Cost Information System." In Advances in Systems Analysis, Software Engineering, and High Performance Computing. IGI Global, 2014. http://dx.doi.org/10.4018/978-1-4666-6194-3.ch016.
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Current information systems used for data collection and to generate information on the state of the roads have two drawbacks: the first is that they have no ability to identify target-detected vehicles; the second is their high cost, which makes them expensive to cover the secondary road network, so they are usually located just on main routes. Thus, a new low-cost information system to monitor the traffic in real-time is proposed in this chapter. This system is based on scanning Bluetooth devices that are near the detection node. A large amount of data from passes of Bluetooth devices by different nodes (movements or displacements) have been collected. From this data, the frequency of appearance, average speed, or the number of devices that pass a certain site each day (on both working or non-working days) can be determined. The analysis of collected data has given statistics and indicators about the use of vehicles by the population of the monitored area. Specifically, the authors have obtained information about the total number of vehicles that each node has detected, on weekdays or holidays, information on traffic density by time range, on individual movements, the average speed on a section delimited by two consecutive nodes, and what demonstrates the power and features of the developed system.
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Lecumberri, Esther, and Victoria Pastor-González. "Learner generated digital content: from posters to videos to promote content acquisition in a language class." In Five years of ELEUK conferences: a selection of short papers from 2019. Research-publishing.net, 2020. http://dx.doi.org/10.14705/rpnet.2020.41.1078.
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This article explores the use of Learner Generated Digital Content (LGDC) in the context of advanced Spanish language modules. An approach to learning and teaching frequently used and extensively researched in disciplines such as medicine and natural sciences, LGDC has in recent years made a cautious appearance in the area of modern languages (Lambert, Philp, & Nakamura, 2017). In the present case, LGDC becomes a powerful tool to address the challenge of introducing content acquisition in what is primarily a language module. Through the creation and sharing of a range of archivable learner generated digital material (posters and videos), learners and teachers collaborate to develop a living and open access information resource that can be expanded and used by successive cohorts of students in a cumulative process of knowledge generation and knowledge exchange. Scheduled at different points throughout the term and designed to result in texts of increasing linguistic complexity, these tasks encourage students to engage with the process of content acquisition and provide them with opportunities to practise and refine the linguistic skills required for the successful completion of their final assessment (an individual presentation). The introduction of LGDC in the module teaching and learning strategy led to a noticeable increase in student engagement, as evidenced by the results of questionnaires conducted with three consecutive cohorts. By sharing our experience, we would like to encourage fellow practitioners to introduce LGDC in the language classroom.
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Alanazi, MH, EC Parent, J. Bettany-Saltikov, D. Hill, and S. Southon. "Convergent validity, ceiling, and floor effects of the English-ISYQOL against established quality of life questionnaires (SRS-22r and SAQ) and curve angles in adolescents with idiopathic scoliosis." In Studies in Health Technology and Informatics. IOS Press, 2021. http://dx.doi.org/10.3233/shti210473.
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Scoliosis significantly impacts Quality of Life (QOL). Current quality of life questionnaires for adolescents with idiopathic scoliosis (AIS) have limitations. A new questionnaire for measuring QOL in AIS called the Italian Spine Youth Quality of Life (ISYQOL) has been developed to address these limitations but the English translation has not yet been validated. To determine the ceiling and floor effects, and the convergent validity of the ISYQOL questionnaire against established QOL questionnaires and Cobb angle in AIS. One hundred consecutive females with AIS, (10–18 years old), treated non-operatively. The English translation of the ISYQOL was compared to the following established questionnaires: Scoliosis Research Society-22r and the Spinal Appearance Questionnaire. The participants were 100 females (13.89+/-1.8 years) with 28.75+/-13.9° curve angles. The convergent validity of the ISYQOL score (60.3+/-12.44) was supported by significant correlation with the SRS-22r total score, function, pain, self-image, and mental health scores (r = 0.70, 0.54, 0.57, 0.52 and 0.50, respectively), and with the SAQ general, waist, and expectations domains (r = -0.6. -.52, and -0.56, respectively). Correlation with the Cobb angle was (r = -.37)(see Table 1). No ceiling effect was observed in the ISYQOL. Ceiling effects were observed for the SRS-22r and the SAQ. The ISYQOL demonstrated evidence of convergent validity. This study supports its suitability for QOL research in AIS. ISYQOL appears more likely to detect changes in evaluative studies than the SRS- 22r and the SAQ.
Conference papers on the topic "Consecutive appearance"
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Quel, E. J., Jorge R. Tredicce, A. Ghazzawi, et al. "Experimental evidence of laser instabilities due to transverse effects." In OSA Annual Meeting. Optica Publishing Group, 1988. http://dx.doi.org/10.1364/oam.1988.mc2.
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Most nonlinear dynamic studies of optical systems in the recent past have focused on temporal behavior of the output radiation.1 However, recent theoretical studies2 have predicted the emergence of spatiotemporal structures and of a new frequency locking effect in a number of passive and active optical systems. Here we present experimental evidence in support of these effects using a CO2 laser with a simple intracavity arrangement that allows the continuous variation of the radius of curvature of the output couplers and, therefore, of the radial mode spacing. When the frequency spacing between consecutive transverse modes is sufficiently small, complex stationary spatial patterns develop in qualitative agreement with the theoretical predictions, and the laser oscillates with radial modes synchronously locked to each other. For larger values of the radial spacing, the frequency locking is lost and the transverse modes tend to operate more independently of one another, as evidenced by the appearance of beating effects in the output signal. The loss of frequency locking also corresponds to a reduction of the average power output. A further increase in the radial mode spacing eventually leads to the standard TEM00 mode configuration.
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Costa, Guilherme Albuquerque de Araujo, Mariana Silva Regadas, and Myrela Murad Sampaio. "Hemorrhagic stroke (ICH): A consequence of thromboembolic events resulting from COVID-19." In XIII Congresso Paulista de Neurologia. Zeppelini Editorial e Comunicação, 2021. http://dx.doi.org/10.5327/1516-3180.364.
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Introduction: The COVID-19 pandemic has been alarming the world since its first outbreak in December 2019. In this scenario, the presence of aggravating factors such as the elevation of the D-dimer and the reduction of the angiotensin-converting enzyme 2 (ACE2) during the clinical course of the disease, collaborated in the appearance of thromboembolic events derived from inflammatory processes and extensive intravascular coagulation, contributing to the emergence of diseases such as Hemorrhagic Stroke (ICH), leading the patient to have a worse clinical prognosis and a consecutive worsening of their health. Objective: To investigate occurrences of ICH derived from thromboembolic effects resulting from COVID-19. Methods: We selected 43 articles published between 2020 and 2021 on the PubMed platforms, SciELO portal, CAPES Journal and Google Scholar in order to conduct an integrative review within this database. Results: The elevated D-dimer was widely cited as a favorable factor for thromboembolic events due to the influence of excessive inflammatory processes, hypoxia and intravascular dissemination of coagulation, contributing to the development of ICH, given its greater association with disorders such as ischemic strokes, considering only these parameters. However, the reduction in ACE2 and the occurrence of cytokine storms end up causing increased inflammation and blood pressure, increasing the risk of stroke due to the rupture of capillaries sensitized by the action of thromboembolic effects and becoming a risk to the life and prognosis of patients infected with SARS-CoV2, especially in groups of individuals with a greater predisposition to the development of thromboembolic and hypertensive events related to COVID-19.
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Zhao, Donghua, and Weizhong Guo. "Research on Curved Layer Fused Deposition Modeling (CLFDM) With Variable Extruded Filament (VEF)." In ASME 2018 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/detc2018-85343.
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Fused Deposition Modeling (FDM), an Additive Manufacturing (AM) technique, is widely used due to its low-cost and open source. Geometry accuracy and strength performance of the printed parts are closely related to inter-layer bonding between adjacent layers and inter-road bonding in the layer. Because of the limit of layer-based AM, the longitudinal tensile strength of the filaments is much higher than the bonding strength between adjacent filaments, which brings anisotropy of the printed part. While CLFDM is devoted to solve this problem and obtain better geometry accuracy and meanwhile decrease build time by virtue of high continuity of filament, reduced stair-step effect, and lesser number of layers, especially when manufacturing thin and curved parts (shells). However, to the best of our knowledge in the aspects of process modeling of CLFDM, available researches focus mainly on simple curved layer, instead of more intricate ones possessing tiny features, which are more common in manufacturing. Therefore, to realize Solid Freeform Fabrication (SFF), this paper researches CLFDM with VEF (simultaneously changing the direction and the dimension of extruded filament according to manufacturing demand of the curved layer), which would be a fundamental study and a foundation for Advanced Design for Additive Manufacturing (ADFAM), slicing and path planning (extruder path generation) in 3D space. To realize slicing and printing with homogeneous and inhomogeneous extruded filament between consecutive layers and within the layer (flat or curved), models of flat layer FDM and CLFDM with VEF are respectively established. Then, the relationships among key process parameters are analyzed. Finally, graphical simulation of the proposed strategy based on a vase is provided to verify its effectiveness and advantages from a theoretical point of view. In general, variable direction of extruded filament along tangential directions of part surface imparts smoother surfaces, instead of rough exterior appearance resulting from stair-step effects. And variable dimension of extruded filament maximizes material extruded to increase build speed wherever allowed and minimizes deposition size for resolution whenever needed, resulting in curved layer surfaces with uneven layer thickness and having tiny features.
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Buchem, Ilona, and Niklas Baecker. "NAO Robot as Scrum Master: Results from a scenario-based study on building rapport with a humanoid robot in hybrid higher education settings." In 13th International Conference on Applied Human Factors and Ergonomics (AHFE 2022). AHFE International, 2022. http://dx.doi.org/10.54941/ahfe1002385.
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Educational robots have been used as an effective intervention mainly in STEM education. A wide range of educational robots, including programmable toys and DIY electronics, have been used to support computational, engineering and problem solving skills, mainly of school children. However, the application of humanoid robots to support learning, especially in higher education, is still at its initial stage. Recent studies provide promising evidence about the potential of humanoid robots for motivation and learning outcomes in higher education. Humanoid, educational robots, such as the NAO robot, provide a multimodal interface which uses touch, speech, gestures and eye gaze for interaction, which is similar to human interaction in the physical world. Rapport is one of the key factors for a successful interaction with humanoid robots and a modulating factor for learning (Westlund & Breazeal, 2019). Rapport has been defined as a dynamic structure of mutual attentiveness, positivity, and coordination (Tickle-Degnen & Rosenthal, 1990). Rapport with humanoid robots can be established through verbal and nonverbal behaviour including dialogues, gestures and movements (Omokawa et al., 2019; Brown & Howard, 2014).In this paper we describe a scenario-based application of the NAO robot and the results from an online survey with 47 students (58% male, 42% female) who participated in two consecutive exploratory studies in hybrid learning settings (66% participated online, 34% F2F). The primary goal of our research was to evaluate to what extent students established rapport with NAO and to explore whether the quality of the rapport differed depending on the mode of participation (on the campus vs. online). The study was conducted with students in the Agile Project Management course in their third semester of Digital Business (B. Sc.). The robot-led scenario was designed as Daily Scrum, which is a 15-minute meeting held by teams using the Scrum framework. NAO was programmed using Choregraphe and Python to facilitate the Daily Scrum as the Scrum Master, whose task was to help students learn how to keep a daily scrum.Building rapport with NAO was assessed using the rapport scale by Gratch, et al. (2007), which was already applied in studies with robotic embodied agents. This scale builds on research revealing the potential of embodied agents to establish rapport and familiarity with humans through verbal and nonverbal behaviour. Additionally, students’ perceptions of the robot were measured using the Human-Robot Interaction Evaluation Scale (HRIES), which is used to evaluate how humans attribute human characteristics to robots (Spatola, et al., 2021). The results of the study indicate that students perceived NAO as a humanlike, anthropomorphic agent and that this perception positively affected student-robot rapport. Additionally, the paper explores the relationships between the rapport scores and the perception of students of key features of the robot including appearance, voice quality, pauses in speaking, pace of speaking, facial expression, movements of the body, head and hand, light effects and tactile interaction. Based on the findings, we discuss both our research contributions and practical implications for programming of humanoid, educational robots to enhance student-robot rapport as part of HRI.
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Fu, Yixian, and YUANYAO LU. "Lip-Reading Research Based on ShuffleNet and Attention-GRU." In 10th International Conference on Human Interaction and Emerging Technologies (IHIET 2023). AHFE International, 2023. http://dx.doi.org/10.54941/ahfe1004024.
Full textAbstract:
Human-computer interaction has seen a paradigm shift from textual or display-based control towards more intuitive control such as voice, gesture and mimicry. Particularly, speech recognition has attracted a lot of attention because it is the most prominent mode of communication. However, performance of speech recognition systems varies significantly according to sources of background noise, types of talkers and listener's hearing ability. Therefore, lip recognition technology which detects spoken words by tracking speaker's lip movements comes into being. It provides an alternative way for scenes with high background noise and people with hearing impaired problems. Also, lip reading technology has widespread application in public safety analysis, animation lip synthesis, identity authentication and other fields. Traditionally, most work in lipreading was based on hand-engineered features, that were usually modeled by HMM-based pipeline. Recently, deep learning methods are deployed either for extracting 'deep' features or for building end-to-end architectures. In this paper, we propose a neural network architecture combining convolutional Neural Network (CNN) and Recurrent Neural Network (RNN) with a plug-in attention mechanism. The model consists of five parts: (1). Input: We use Dlib library for detecting 68 landmarks of the face, crop the lip area and extract 29 consecutive frames from the video sequence. The frames go through a simple C3D network for generic feature extraction. (2). CNN: with neural networks becoming deeper and deeper, computation complexity increases significantly as well, which motivated the appearance of the lightweight model architecture design. Then a lightweight CNN named ShuffleNet pre-trained on ImageNet dataset is used in our method to perform spatial downsampling of a single image. The ShuffleNet mainly uses two new operations, namely, pointwise group convolution and channel shuffle, which greatly reduce the computational cost without affecting recognition accuracy. (3) CBAM: In the field of image processing, a feature map contains a variety of important information. The traditional convolutional neural network performs convolution in the same way on all channels but importance of information varies greatly depending on different channels. To improve the performance of convolutional neural networks for feature extraction, we utilize an attention mechanism named Convolutional Block Attention Module (CBAM), which is a simple and effective attention module for feedforward convolutional neural networks and contains two independent sub-modules, namely, Channel Attention Module (CAM) and Spatial Attention Module (SAM), which perform Channel and Spatial Attention respectively. (4) RNN: The traditional Recurrent Neural Network (RNN) is mainly used to process sequential data, but with the extension of the RNN network, it may be unable to connect to all related information which may cause key information loss. It cannot solve the long-distance dependence problem and the performance may drop significantly. Due to this shortcoming of the traditional RNN network, we select the GRU network in this paper, which is a variant of the LSTM. It has a simpler structure and better performance than the LSTM neural network. (5) Outputs: Lastly, we pass the result of the backend to SoftMax for classifying the final word. In our experiment, we compare several model architectures and find that our model achieves a comparable accuracy to the current state-of-the-art model at a lower computational cost.
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Bajura, Tudor, and Svetlana Gandacova. "Asigurarea securității alimentare a statului: cine și pentru ce este responsabil?" In International Scientific-Practical Conference "Economic growth in the conditions of globalization". National Institute for Economic Research, 2023. http://dx.doi.org/10.36004/nier.cecg.ii.2023.17.4.
Full textAbstract:
Along with other forms of security (for example – military, epidemiological, cyber security, etc.) the food security of the country's population constitutes an area of major importance regarding the successful activity of state governing bodies. Obviously, this level of importance becomes much higher under the conditions of the simultaneous appearance and operation of several risk phenomena, some of which are reflected in the given article. According to the analysis carried out, in the considerable number of publications on the subject addressed, there are practically no attempts to classify and systematize the responsibilities of the governors regarding combating (at least – contracting) risk phenomena, especially (as already mentioned), in cases of their simultaneous appearance and operation. As a consequence, a large part of problems remains not only intact, but also undetected, turning the negative consequences of their action into difficult or even impossible to solve. The aim of the paper. The scientifically argued identification and classification of the of different hierarchical levels of governmental powers, aimed at ensuring the indisputable food security of the country under the simultaneous influence of different risk groups, constitutes the main purpose of this research. The methods applied. The methodological basis of the research is the general theory of management, including general and strategic management, the evaluation of business and investment projects, economic grouping, the formation of dynamic chains, comparison, etc. The statistical data of the NBS of the Republic of Moldova, the results of the scientific research of the scientists, the monographic analysis, the informative materials, reflected on the specialized pages (special software) and others, were used as the informational support. The relevant results Three hierarchical levels of responsibility of the governing bodies (and civil society) of responsibility for ensuring the food security of the country were identified, consecutively, appropriate tools and economic mechanisms were established to measure, later – evaluate, the practical results of their activity.