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Artigos de revistas sobre o tema "Proximité digitale"

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Autor: Grafiati

Publicado: 14 de setembro de 2024

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1

Beyi, Ashenafi F., Alan Hassall, Gregory J. Phillips e Paul J. Plummer. "Tracking Reservoirs of Antimicrobial Resistance Genes in a Complex Microbial Community Using Metagenomic Hi-C: The Case of Bovine Digital Dermatitis". Antibiotics 10, n.º 2 (23 de fevereiro de 2021): 221. http://dx.doi.org/10.3390/antibiotics10020221.

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Bovine digital dermatitis (DD) is a contagious infectious cause of lameness in cattle with unknown definitive etiologies. Many of the bacterial species detected in metagenomic analyses of DD lesions are difficult to culture, and their antimicrobial resistance status is largely unknown. Recently, a novel proximity ligation-guided metagenomic approach (Hi-C ProxiMeta) has been used to identify bacterial reservoirs of antimicrobial resistance genes (ARGs) directly from microbial communities, without the need to culture individual bacteria. The objective of this study was to track tetracycline resistance determinants in bacteria involved in DD pathogenesis using Hi-C. A pooled sample of macerated tissues from clinical DD lesions was used for this purpose. Metagenome deconvolution using ProxiMeta resulted in the creation of 40 metagenome-assembled genomes with ≥80% complete genomes, classified into five phyla. Further, 1959 tetracycline resistance genes and ARGs conferring resistance to aminoglycoside, beta-lactams, sulfonamide, phenicol, lincosamide, and erythromycin were identified along with their bacterial hosts. In conclusion, the widespread distribution of genes conferring resistance against tetracycline and other antimicrobials in bacteria of DD lesions is reported for the first time. Use of proximity ligation to identify microorganisms hosting specific ARGs holds promise for tracking ARGs transmission in complex microbial communities.

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Panori, Anastasia. "Platforms Enhancing Proximity in the Digital Era". Platforms 2, n.º 1 (12 de janeiro de 2024): 1–14. http://dx.doi.org/10.3390/platforms2010001.

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Platforms have the ability to create connected digital spaces where different actors co-exist and work together. The paper explores the power of platforms as enablers of a new channel of proximity, called digital proximity. It argues that platforms enable interactions, information flows, and network formation through digital proximity, which can effectively reinforce externalities complementing existing proximity forms or bypassing physical space barriers. Firms and industries adopting platform-based tools can create meaningful channels for increasing their proximity at an intra- and inter-firm level. The study uses data from the Digital Economy and Society database covering 25 EU countries for the years 2019 and 2021. It calculates the degree of adoption by EU firms at the national level for a set of selected platform-based technologies closely related to different proximity forms. It investigates the relationship between digital proximity, firm size, and industry, also introducing a geographical dimension. The evidence suggests that large firms have managed to integrate platform-based technologies to a greater extent, whereas small and medium firms still lack leveraging the full power of platforms. Increased adoption at the country level is also related to increased productivity, indicating the geographical dimension of platforms. The paper argues that platforms can be seen as a new means for balancing uneven spatial capabilities for producing proximity, indicating a high potential for fostering territorial cohesion. It concludes by suggesting that future research should measure the effects of digital proximity on development and their causal relationship to better elaborate on the implications of platforms on development.

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Alderete, Maria Veronica. "Does digital proximity between countries impact entrepreneurship?" info 17, n.º 5 (10 de agosto de 2015): 46–65. http://dx.doi.org/10.1108/info-03-2015-0020.

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Purpose – This paper aims to determine if there is a spatial dependence in the entrepreneurial activity among countries. The existence of a “digital proximity” could explain the spatial pattern of entrepreneurship. Design/methodology/approach – This question is empirically addressed by using a five-period, 2008-2012, panel data for 35 countries. A spatial fixed effects panel data model is estimated by using the total entrepreneurial activity published by the global entrepreneurship monitor as the dependent variable. Findings – A significant negative influence of the digital proximity on the entrepreneurial activity is observed. Mobile broadband (MB) direct effect is positive while the indirect effect (the spatial spillovers) is negative, leading to a negative total effect on the total entrepreneurial activity. This result is contrary to non-spatial models’ results. Besides, a higher MB penetration in a country would lead to a competitive advantage fostering its opportunities for entrepreneurship, but reducing those of its neighbours’. Originality/value – This paper examines the relationship between information and communication technology (ICT) and entrepreneurship, by introducing the spatial effects is the main contribution. This paper expands the scant literature on the ICT impact on entrepreneurship. Results obtained support policies towards enforcing innovation, education and reducing entry regulations for encouraging entrepreneurship. Meanwhile, MB policies could counteract the entrepreneurial policies’ results due to the spatial dependence.

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Latecki, Longin, e Frank Prokop. "Semi-proximity continuous functions in digital images". Pattern Recognition Letters 16, n.º 11 (novembro de 1995): 1175–87. http://dx.doi.org/10.1016/0167-8655(95)00069-s.

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Berriel Mastretta, Carlos Alberto. "The Distant Proximity Imposed by Digital Media". Glimpse 23 (2023): 66–70. http://dx.doi.org/10.5840/glimpse2023/202423/2410.

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6

Daniore, Paola, Vasileios Nittas, André Moser, Marc Höglinger e Viktor von Wyl. "Using Venn Diagrams to Evaluate Digital Contact Tracing: Panel Survey Analysis". JMIR Public Health and Surveillance 7, n.º 12 (6 de dezembro de 2021): e30004. http://dx.doi.org/10.2196/30004.

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Background Mitigation of the spread of infection relies on targeted approaches aimed at preventing nonhousehold interactions. Contact tracing in the form of digital proximity tracing apps has been widely adopted in multiple countries due to its perceived added benefits of tracing speed and breadth in comparison to traditional manual contact tracing. Assessments of user responses to exposure notifications through a guided approach can provide insights into the effect of digital proximity tracing app use on managing the spread of SARS-CoV-2. Objective The aim of this study was to demonstrate the use of Venn diagrams to investigate the contributions of digital proximity tracing app exposure notifications and subsequent mitigative actions in curbing the spread of SARS-CoV-2 in Switzerland. Methods We assessed data from 4 survey waves (December 2020 to March 2021) from a nationwide panel study (COVID-19 Social Monitor) of Swiss residents who were (1) nonusers of the SwissCovid app, (2) users of the SwissCovid app, or (3) users of the SwissCovid app who received exposure notifications. A Venn diagram approach was applied to describe the overlap or nonoverlap of these subpopulations and to assess digital proximity tracing app use and its associated key performance indicators, including actions taken to prevent SARS-CoV-2 transmission. Results We included 12,525 assessments from 2403 participants, of whom 50.9% (1222/2403) reported not using the SwissCovid digital proximity tracing app, 49.1% (1181/2403) reported using the SwissCovid digital proximity tracing app and 2.5% (29/1181) of the digital proximity tracing app users reported having received an exposure notification. Most digital proximity tracing app users (75.9%, 22/29) revealed taking at least one recommended action after receiving an exposure notification, such as seeking SARS-CoV-2 testing (17/29, 58.6%) or calling a federal information hotline (7/29, 24.1%). An assessment of key indicators of mitigative actions through a Venn diagram approach reveals that 30% of digital proximity tracing app users (95% CI 11.9%-54.3%) also tested positive for SARS-CoV-2 after having received exposure notifications, which is more than 3 times that of digital proximity tracing app users who did not receive exposure notifications (8%, 95% CI 5%-11.9%). Conclusions Responses in the form of mitigative actions taken by 3 out of 4 individuals who received exposure notifications reveal a possible contribution of digital proximity tracing apps in mitigating the spread of SARS-CoV-2. The application of a Venn diagram approach demonstrates its value as a foundation for researchers and health authorities to assess population-level digital proximity tracing app effectiveness by providing an intuitive approach for calculating key performance indicators.

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Sunilkumar, NS, AR Sreeranjini, N. Ashok, S. Maya, TV Aravindakshan e MK Narayanan. "Proximate composition of bovine digital cushion". International Journal of Veterinary Sciences and Animal Husbandry 8, n.º 5 (1 de janeiro de 2023): 361–63. http://dx.doi.org/10.22271/veterinary.2023.v8.i5f.766.

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Bonnemann, Jens. "Die Erfahrung des Anderen in leibhaftiger und digitaler Interaktion". Phenomenology and Mind 26 (2024): 108. http://dx.doi.org/10.17454/pam-2608.

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The article compares the way in which another person appears to me on the one hand in physical communication and on the other in digital communication. The comparison is again based on a distinction between two very different forms of proximity and distance relationships. Physical proximity refers to spatial proximity and thus also the intensity of the experience of the sensual presence of the other person, while interpersonal proximity refers to the emotional connection with the other person. Using a series of examples of life-world interaction, which ultimately boils down to online conversations, the relationship between physical and interpersonal closeness is examined in the course of the article.

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Rønn, Kira Vrist. "Mediated Proximity: Community Policing in the Digital Age". Nordic Journal of Studies in Policing 10, n.º 1 (25 de agosto de 2023): 1–15. http://dx.doi.org/10.18261/njsp.10.1.8.

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Čoko, Duje, Ivo Stančić, Lea Dujić Dujić Rodić e Dora Čošić. "TheraProx: Capacitive Proximity Sensing". Electronics 11, n.º 3 (28 de janeiro de 2022): 393. http://dx.doi.org/10.3390/electronics11030393.

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This paper presents the development of a novel contactless omnidirectional capacitive proximity sensor. The presented device has been designed to be energy-efficient (≈5 mW power consumption) by means of duty-cycling the power supply. A comprehensive methodological experiment has been carried out to extensively evaluate the performance within the sensing range (5–10 cm). A simple boot-up self-adjustment mechanism has been implemented using a digital potentiometer. This feature allows for an effortless utilization of the proposed device in a wide variety of potential applications, including mobile robotics and human–machine interaction.

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Ahva, Laura, e Mervi Pantti. "Proximity As A Journalistic Keyword In The Digital Era". Digital Journalism 2, n.º 3 (14 de abril de 2014): 322–33. http://dx.doi.org/10.1080/21670811.2014.895505.

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D’Amico, S., E. Colica, L. Galone, R. Persico, V. Venuti, F. Caridi, S. Foti e C. Cantarella. "Proximity Remote Sensing: Preliminary Results At The Batia Church (Tortorici, Sicily)". Journal of Physics: Conference Series 2204, n.º 1 (1 de abril de 2022): 012087. http://dx.doi.org/10.1088/1742-6596/2204/1/012087.

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Abstract The paper presents the results of scientific investigations carried out at the Batia Church located in the small village of Tortorici (Messina, Sicily). We performed several geophysical surveys and reconstruct 2D and 3D digital models of the monument using digital photogrammetry. From the 3D model accurate digital elevation models. A detail mapping was carried out using the derived 3D digital model identifying mayor fractures as well as quantifying the extent of original pain and the modern interventions.

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Guo, Yi-Xin, Zhi-Biao Shao e Ting Li. "An Analog-Digital Mixed Measurement Method of Inductive Proximity Sensor". Sensors 16, n.º 1 (30 de dezembro de 2015): 30. http://dx.doi.org/10.3390/s16010030.

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Hur, Jungyu, e Manseung Seo. "Optical Proximity Corrections for Digital Micromirror Device-based Maskless Lithography". Journal of the Optical Society of Korea 16, n.º 3 (25 de setembro de 2012): 221–27. http://dx.doi.org/10.3807/josk.2012.16.3.221.

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Charsooghi, Mohammad A., e Ali-Reza Moradi. "Surface proximity effect in sedimentation investigated by digital holographic microscopy". Applied Optics 57, n.º 7 (16 de fevereiro de 2018): B179. http://dx.doi.org/10.1364/ao.57.00b179.

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Detlor, Brian, Fariba Nosrati e Claudia Crippa. "Connecting people with their communities through proximity‐based digital storytelling". Proceedings of the Association for Information Science and Technology 54, n.º 1 (janeiro de 2017): 650–51. http://dx.doi.org/10.1002/pra2.2017.14505401102.

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İNAN, Ebubekir, e Mustafa UÇKUN. "$\theta_f$-Approximations via fuzzy proximity relations: Semigroups in digital images". Malaya Journal of Matematik 11, n.º 03 (1 de julho de 2023): 303–11. http://dx.doi.org/10.26637/mjm1103/007.

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This article introduces $\theta_{f}$-approximations of sets in fuzzy proximal relator space where $\theta\in\lbrack0,1)$. $\theta_{f}$-approximation provides a more sensitive approach for the upper approximations of subsets or subimages. $\theta_{f}$-approximation of a subimage are given with an example in digital images. Furthermore, $\theta_{f}$-approximately groupoid and semigroup in fuzzy proximal relator space are introduced.

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Puntí Brun, Mònica. "Proximity Online Media in Catalonia (Spain). The Case Study of Nació Digital Group". Romanian Journal of Communication and Public Relations 17, n.º 1 (1 de abril de 2015): 23. http://dx.doi.org/10.21018/rjcpr.2015.1.104.

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This paper aims to make a conceptualization of proximity digital media. It will define what is local and proximity communication as well as the history and evolution of online journalism and digital media features which are briefly reviewed. Business models that exist nowadays and the state of art in Catalonia (Spain) will also be briefly analysed. From this theoretical framework it will be explained the case of Nació Digital and its territorial media. Initially the history of this media group will be developed, as well as its journalistic and business models. The paper seeks to underscore the importance of the journalistic model based on the tradition of the profession, the proximity information and the technology developed for this online media. The Nació Digital is an example of a successful media outlet judging from its audience figures (the second online media in Catalonia) and its sustainable model business.<em><em><br /></em></em>

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Rashid, Farah, Taseef Hasan Farook e James Dudley. "Digital Shade Matching in Dentistry: A Systematic Review". Dentistry Journal 11, n.º 11 (27 de outubro de 2023): 250. http://dx.doi.org/10.3390/dj11110250.

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The pursuit of aesthetic excellence in dentistry, shaped by societal trends and digital advancements, highlights the critical role of precise shade matching in restorative procedures. Although conventional methods are prevalent, challenges such as shade guide variability and subjective interpretation necessitate a re-evaluation in the face of emerging non-proximity digital instruments. This systematic review employs PRISMA protocols and keyword-based search strategies spanning the Scopus®, PubMed.gov, and Web of ScienceTM databases, with the last updated search carried out in October 2023. The study aimed to synthesise literature that identified digital non-proximity recording instruments and associated colour spaces in dentistry and compare the clinical outcomes of digital systems with spectrophotometers and conventional visual methods. Utilising predefined criteria and resolving disagreements between two reviewers through Cohen’s kappa calculator, the review assessed 85 articles, with 33 included in a PICO model for clinical comparisons. The results reveal that 42% of studies employed the CIELAB colour space. Despite the challenges in study quality, non-proximity digital instruments demonstrated more consistent clinical outcomes than visual methods, akin to spectrophotometers, emphasising their efficacy in controlled conditions. The review underscores the evolving landscape of dental shade matching, recognising technological advancements and advocating for methodological rigor in dental research.

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Khourani, W. El, e A. El Yamani. "DIGITAL IMPLANT PLANNING: A BRIEF NARRATIVE REVIEW". International Journal of Advanced Research 9, n.º 02 (28 de fevereiro de 2021): 869–73. http://dx.doi.org/10.21474/ijar01/12527.

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Recently, the development of radiology, and software engineering, has led to the development of a new protocol called computer-assisted implantology (CAI) or guided implantology. CT / CBCT scanners allow the dentist to visualize a patients anatomy in 3 dimensions. Define the precise measurement of bone for implant placement, soft tissue thickness, proximity and adjacent root anatomy. The exact location of the maxillary sinuses, and other relevant vital structures such as mandibular canal, mental and incisal foramen canal. Once the images are imported, to the software the clinician can then virtually begin treatment planning. The type and size of the planned implant, its position in the bone, its relationship to the restoration and adjacent teeth and/or implants, and its proximity to vital structures can be determined prior to surgery. Computer-generated surgical drill guides can then be manufactured from the virtual treatment plan.

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Nosrati, Fariba, Claudia Crippa e Brian Detlor. "Connecting people with city cultural heritage through proximity-based digital storytelling". Journal of Librarianship and Information Science 50, n.º 3 (7 de maio de 2018): 264–74. http://dx.doi.org/10.1177/0961000618769972.

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This paper describes a research investigation on a project led by two libraries, Hamilton Public Library and McMaster University Library, in Hamilton, Canada, concerning the use of proximity-based technologies to share digital stories about a city’s culture. Proximity-based technology systems, such as iBeacons, allow users to receive information automatically when they are close to a physical spot. The project involved the setup of iBeacons that disseminated digital stories pertaining to Gore Park – a prominent historical park in the heart of downtown Hamilton. To test the viability of using iBeacon technologies to raise interest in a city and promote appreciation for a city’s cultural heritage, a pilot study was conducted. The study included one-on-one interviews and a short survey with 50 participants from the general public immediately after these participants used an iBeacon app to experience digital stories about Gore Park. Findings suggest iBeacons are viable tools to share city cultural heritage stories that yield improved perceptions of a city and greater appreciation for a city’s culture and history. Participants were appreciative of the digital stories and the iBeacon app. All participants mentioned that they learned something new about the city and that the app was very informative. Findings indicate that individual differences are important and can affect not only the acceptance and use of an iBeacon digital storytelling app, but also the extent to which the app can promote interest in a city and appreciation for a city’s cultural heritage.

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Vaz de Almeida, Cristina. "Digital Health Literacy". International Journal of Mobile Devices, Wearable Technology, and Flexible Electronics 11, n.º 1 (janeiro de 2021): 1–11. http://dx.doi.org/10.4018/ijmdwtfe.20210101.oa4.

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The pandemic has shown the importance of health organizations adapting rapidly to teleconsultation services, investing in e-health with quality criteria and monitoring outcomes. Through a literature review and gathering research already carried out on e-health communication and with practical examples it is verified that, if the requirements of proximity, quality and interpersonal relationship are met, better health results can be obtained. When communication is established in health via mobile phone, with image, sound, voice, text, it is thus possible to work the memory and health instructions of patients and obtain better health outcomes. These strategies must be personalized and adapted to the patient's age and context.

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Vaz de Almeida, Cristina. "Digital Health Literacy". International Journal of Mobile Devices, Wearable Technology, and Flexible Electronics 10, n.º 2 (julho de 2019): 1–11. http://dx.doi.org/10.4018/ijmdwtfe.2019070101.

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The pandemic has shown the importance of health organizations adapting rapidly to teleconsultation services, investing in e-health with quality criteria and monitoring outcomes. Through a literature review and gathering research already carried out on e-health communication and with practical examples, it is verified that, if the requirements of proximity, quality, and interpersonal relationship are met, better health results can be obtained. When communication is established in health via mobile phone, with image, sound, voice, text, it is thus possible to work the memory and health instructions of patients and obtain better health outcomes. These strategies must be personalized and adapted to the patient's age and context.

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Kim, Daeho, Ankit Goyal, SangHyun Lee, Vineet R. Kamat e Meiyin Liu. "Single-Shot Visual Relationship Detection for the Accurate Identification of Contact-Driven Hazards in Sustainable Digitized Construction". Sustainability 16, n.º 12 (14 de junho de 2024): 5058. http://dx.doi.org/10.3390/su16125058.

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Deploying construction robots alongside workers presents the risk of unwanted forcible contact—a critical safety concern. To address a semantic digital twin where such contact-driven hazards can be monitored accurately, the authors present a single-shot deep neural network (DNN) model that can perform proximity and relationship detections simultaneously. Given that workers and construction robots must sometimes collaborate in close proximity, their relationship must be considered, along with proximity, before concluding an event is a hazard. To address this issue, we leveraged a unique two-in-one DNN architecture called Pixel2Graph (i.e., object + relationship detections). The potential of this DNN architecture for relationship detection was confirmed by follow-up testing using real-site images, achieving 90.63% recall@5 when object bounding boxes and classes were given. When integrated with existing proximity monitoring methods, single-shot visual relationship detection will enable the accurate identification of contact-driven hazards in a digital twin platform, an essential step in realizing sustainable and safe collaboration between workers and robots.

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Guo, Yi-Xin, Zhi-Biao Shao, Hui-Bin Tao, Kai-Liang Xu e Ting Li. "Dimension-Reduced Analog—Digital Mixed Measurement Method of Inductive Proximity Sensor". Sensors 17, n.º 7 (30 de junho de 2017): 1533. http://dx.doi.org/10.3390/s17071533.

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Chkhalo, N. I., A. E. Pestov, N. N. Salashchenko, A. V. Sherbakov, E. V. Skorokhodov e M. V. Svechnikov. "Sub-micrometer resolution proximity X-ray microscope with digital image registration". Review of Scientific Instruments 86, n.º 6 (junho de 2015): 063701. http://dx.doi.org/10.1063/1.4921849.

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Kaimann, Daniel, e Mitja Del Bono. "The Impact of Cultural Proximity and Digital Dissimilarity on Cultural Trade". International Trade Journal 34, n.º 5 (27 de janeiro de 2020): 447–69. http://dx.doi.org/10.1080/08853908.2020.1716893.

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Willems, Kim, Malaika Brengman e Stephanie van de Sanden. "In-store proximity marketing: experimenting with digital point-of-sales communication". International Journal of Retail & Distribution Management 45, n.º 7/8 (10 de julho de 2017): 910–27. http://dx.doi.org/10.1108/ijrdm-10-2016-0177.

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Purpose The authors present an exploratory study on the effectiveness of in-store marketing communication appeals via digital signage applying the construal level theory (CLT) in a field experiment. According to this theory, the authors hypothesize that shoppers will on the one hand respond more favorably to messages focusing on the desirability of the offering, when they are further distanced from the actual purchase decision. On the other hand, the authors expect more favorable responses toward messages containing feasibility appeals, positioned closer by to the purchase decision. The purpose of this paper is to determine appropriate location-based content for in-store proximity marketing. Design/methodology/approach A field experiment was conducted in a Belgian coffee bar, examining temporal distance effects in a natural retail/service environment. A 2×2 between-subjects experimental design is implemented (i.e. low vs high temporal distance×concrete/cost vs abstract/brand-oriented appeal), examining the impact on marketing communication effectiveness. Findings Overall, the authors find some initial support for CLT on effectiveness measures regarding purchase intentions and actual purchase, but not in terms of self-reported noticing of the screen and the ad, nor in terms of (un)aided ad recall. Research limitations/implications This experiment is a pilot study and such finds itself confronted with a limited number of observations. Originality/value The study is among the first to examine how message content (beyond price promotion) can be adapted to in-store locations.

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Qaiser, Talha, Matthew Pugh, Sandra Margielewska, Robert Hollows, Paul Murray e Nasir Rajpoot. "Tumor-collagen digital proximity signature to indicate prognosis in diffuse large B-cell lymphoma." Journal of Clinical Oncology 37, n.º 15_suppl (20 de maio de 2019): e19073-e19073. http://dx.doi.org/10.1200/jco.2019.37.15_suppl.e19073.

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e19073 Background: Diffuse large B-cell lymphoma (DLBCL) is a heterogeneous tumor that originates from normal B-cells. Despite the use of combination chemotherapy, around 40% of DLBCL patients die (de Jonge, et al. European Journal of Cancer, 2016). Limited studies have investigated the role of collagen in the acellular tumor microenvironment. In this study, we present a novel digital signature of the proximity of tumor cells and collagen-VI (COL6) that can predict overall survival (OS) in DLBCL patients. To the best of our knowledge, this is the first study of its kind to employ automated image analysis. Methods: The proposed digital proximity signature (DPS) aggregates summary-level statistics from the entire whole slide image (WSI) and serves as a marker of regions, categorizing weak, moderate, significant, and strong tumor-collagen proximity and can be described as a surrogate for signaling. To accomplish this, we developed a novel artificial intelligence (AI) based multi-task model for simultaneous detection and classification of tumor cells and another bespoke method for automatically identifying COL6 fiber. The tumor-collagen proximity analysis was then performed by aggregating tumor cell statistics within the vicinity of COL6 fibres. Finally, the prognostic significance of DPS for OS in DLBCL was investigated with Kaplan-Meier analysis, stratifying patients into two groups based on the median of the DPS values. Results: We took WSIs of DLBCL tissue slides for 32 cases immunohistochemically stained with COL6 and Hematoxylin counterstain. The AI model for tumor cell identification achieved a high F1-score of 0.84, outperforming recent single-task learning models. Our results show that strong proximity of COL6 and tumor cells is linked to better OS in DLBCL patients ( p = 0.03). Conclusions: Our novel digitally computed COL6-tumor proximity signature shows prognostic significance for overall survival on a pilot dataset of 32 DLBCL patients. We are further validating the utility of this novel signature as a prognostic biomarker in larger cohorts of DLBCL patients.

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Lohan, Elena Simona, Viktoriia Shubina e Dragoș Niculescu. "Perturbed-Location Mechanism for Increased User-Location Privacy in Proximity Detection and Digital Contact-Tracing Applications". Sensors 22, n.º 2 (17 de janeiro de 2022): 687. http://dx.doi.org/10.3390/s22020687.

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Future social networks will rely heavily on sensing data collected from users’ mobile and wearable devices. A crucial component of such sensing will be the full or partial access to user’s location data, in order to enable various location-based and proximity-detection-based services. A timely example of such applications is the digital contact tracing in the context of infectious-disease control and management. Other proximity-detection-based applications include social networking, finding nearby friends, optimized shopping, or finding fast a point-of-interest in a commuting hall. Location information can enable a myriad of new services, among which we have proximity-detection services. Addressing efficiently the location privacy threats remains a major challenge in proximity-detection architectures. In this paper, we propose a location-perturbation mechanism in multi-floor buildings which highly protects the user location, while preserving very good proximity-detection capabilities. The proposed mechanism relies on the assumption that the users have full control of their location information and are able to get some floor-map information when entering a building of interest from a remote service provider. In addition, we assume that the devices own the functionality to adjust to the desired level of accuracy at which the users disclose their location to the service provider. Detailed simulation-based results are provided, based on multi-floor building scenarios with hotspot regions, and the tradeoff between privacy and utility is thoroughly investigated.

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Ahamad, Shaik Shakeel, V. N. Sastry e Siba K. Udgata. "A Secure and Optimized Proximity Mobile Payment Framework with Formal Verification". International Journal of E-Services and Mobile Applications 6, n.º 1 (janeiro de 2014): 66–92. http://dx.doi.org/10.4018/ijesma.2014010104.

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In this paper the authors propose a Secure and Optimized Proximity Mobile Payment (SOPMP) Framework using NFC (Near Field Communication) technology, WPKI (Wireless Public Key Infrastructure), UICC (Universal Integrated Circuit Card). The novelty of this proposed mobile payment framework is messages are exchanged in the form of Digital Signature with Message Recovery (DSMR) and merchant sends Invoice in the form of Digital Invoice Certificate (DIC) (which is digitally signed by the merchant). The communication link between mobile phone and merchant POS (Point Of Sale) is NFC. Digital Signature with Message Recovery based on ECDSA eliminates the need of adopting PKI cryptosystems thereby reducing the consumption of resources i.e. it consumes less computational and communication cost. DSMR eliminates the need of certificates validation and removes the hurdle of PKI thereby reducing storage space, communication cost and computational cost. The authors proposed protocol ensures Authentication, Integrity, Confidentiality and Non Repudiation, achieves Identity protection from merchant and Eavesdropper, achieves Transaction privacy from Eavesdropper and Payment Gateway, achieves Payment Secrecy, Order Secrecy, forward secrecy, and prevents Double Spending, Overspending and Money laundering. In addition to these our proposed protocol withstands Replay, Man in the Middle and Impersonation attacks. The security properties of the proposed protocol have been verified using AVISPA and Scyther Tools and presented with results.

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Madsen, Anders Koed, e Anders Kristian Munk. "Experiments with a data-public: Moving digital methods into critical proximity with political practice". Big Data & Society 6, n.º 1 (janeiro de 2019): 205395171882535. http://dx.doi.org/10.1177/2053951718825357.

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Making publics visible through digital traces has recently generated interest by practitioners of public engagement and scholars within the field of digital methods. This paper presents an experiment in moving such methods into critical proximity with political practice and discusses how digital visualizations of topical debates become appropriated by actors and hardwired into existing ecologies of publics and politics. Through an experiment in rendering a specific data-public visible, it shows how the interplay between diverse conceptions of the public as well as the specific platforms and data invoked, resulted in a situated affordance-space that allowed specific renderings take shape, while disadvantaging others. Furthermore, it argues that several accepted tropes in the literatures of digital methods ended up being problematic guidelines in this space. Among these is the prescription to shown heterogeneity by pushing back at established media logics.

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Holgado, Alexis Carlos, Tito Pradhono Tomo, Sophon Somlor e Shigeki Sugano. "A Multimodal, Adjustable Sensitivity, Digital 3-Axis Skin Sensor Module". Sensors 20, n.º 11 (1 de junho de 2020): 3128. http://dx.doi.org/10.3390/s20113128.

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This paper presents major improvements to a multimodal, adjustable sensitivity skin sensor module. It employs a geomagnetic 3-axis Hall effect sensor to measure changes in the position of a magnetic field generated by an electromagnet. The electromagnet is mounted on a flexible material, and different current values can be supplied to it, enabling adjustments to the sensitivity of the sensor during operation. Capacitive sensing has been added in this iteration of the module, with two sensing modalities: “pre-touch” detection with proximity sensing and normal force capacitive sensing. The sensor has been designed to be interconnected with other sensor modules to be able to cover large surfaces of a robot with normal and shear force sensing and object proximity detection. Furthermore, this paper introduces important size reductions of the previous sensor design, calibration results, and further analysis of other sensor characteristics.

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Davidson, Roei, e Nathaniel Poor. "Location, location, location: how digital platforms reinforce the importance of spatial proximity". Information, Communication & Society 22, n.º 10 (8 de março de 2018): 1464–78. http://dx.doi.org/10.1080/1369118x.2018.1444075.

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Zhu, Ying, Valerie Lynette Wang, Yong Jian Wang e Jim Nastos. "Business-to-business referral as digital coopetition strategy". European Journal of Marketing 54, n.º 6 (21 de fevereiro de 2020): 1181–203. http://dx.doi.org/10.1108/ejm-01-2019-0011.

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Purpose Based on theories related to coopetition, the purpose of this paper is to examine the patterns of business-to-business digital referrals inscribed in businesses’ digital content. Design/methodology/approach A complete industry-wise digital data set is formed by extracting digital referrals in all the content pages. The authors outline how digital referrals are strategically used among peer businesses in the peer-to-peer digital network and in the augmented digital network, taking into consideration geographical framing and physical distance. Findings The authors reveal how geographical framing and physical distance influence peer-to-peer referral patterns in the digital space. Quite counter-intuitively, businesses are more likely to give digital referrals for peers residing in the same region, as well as for peers located in closer proximity. Further, results from the augmented digital network show that peer businesses in closer proximity exhibit greater strategic similarity in their digital referring strategy. Research limitations/implications The findings extend the understanding of business-to-business coopetition to the digital space and suggest that geographical framing and physical distance can induce reciprocated relationships between peers by offering each other digital referrals. Practical implications The findings shed light on the formation of a business-to-business digital coopetition strategy using digital referral marketing. Originality/value This study highlights the impact of digital referrals in business-to-business relationship management, especially in the digital coopetition context.

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Scott, Kerry, Aashaka Shinde, Osama Ummer, Shalini Yadav, Manjula Sharma, Nikita Purty, Anushree Jairath, Sara Chamberlain e Amnesty Elizabeth LeFevre. "Freedom within a cage: how patriarchal gender norms limit women’s use of mobile phones in rural central India". BMJ Global Health 6, Suppl 5 (setembro de 2021): e005596. http://dx.doi.org/10.1136/bmjgh-2021-005596.

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IntroductionIndia has one of the highest gender gaps in mobile phone access in the world. As employment opportunities, health messaging (mHealth), access to government entitlements, banking, civic participation and social engagement increasingly take place in the digital sphere, this gender gap risks further exacerbating women’s disadvantage in Indian society. This study identifies the factors driving women’s unequal use of phones in rural Madhya Pradesh, India.MethodsWe interviewed mothers of 1-year-old children (n=29) who reported that they had at least some access to a mobile phone. Whenever possible, we also spoke to their husbands (n=23) and extended family members (n=34) through interviews or family group discussions about the use of phones in their households, as well as their perspectives on gender and phone use more broadly. Our analysis involved comparing wife–husband pairs to assess differences in phone access and use, and thematic coding on the determinants of women’s phone use using an iteratively developed conceptual framework.ResultsWhile respondents reported that women could use the phone without needing permission, this apparent ‘freedom’ existed in a context that severely constrained women’s actual use, most directly through: (1) narrow expectations and desires around how women would use phones, (2) women’s dependence on men for phone ownership and lower proximity to phones, (3) the poorer functionality of women’s phones; (4) women’s limited digital skills, and (5) time allocation constraints, wherein women had less leisure time and were subject to social norms that discouraged using a phone for leisure.ConclusionOur framework, presenting the distal and proximate determinants of women’s phone use, enables more nuanced understanding of India’s digital divide. Addressing these determinants is vital to shift from re-entrenching unequal gender relations to transforming them through digital technology.

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Blaagaard, Bolette, Mette Mortensen e Christina Neumayer. "Digital images and globalized conflict". Media, Culture & Society 39, n.º 8 (25 de agosto de 2017): 1111–21. http://dx.doi.org/10.1177/0163443717725573.

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As the number of digital images of globalized conflicts online grow, critical examination of their impact and consequence is timely. This editorial provides an overview of digital images and globalized conflict as a field of study by discussing regimes of visibility and invisibility, proximity and distance, and the multiplicity of images. It engages critically with these interlinking themes as they are addressed in the contributing articles to the Special Issue as well as beyond, asking how genres and tropes are reproduced, how power plays a role in access to images, and how the sheer quantity of conflict-related images raise issues of knowledge production and research.

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Rahmati, Pouya, Ali Tafti, J. Christopher Westland e Cesar Hidalgo. "When All Products Are Digital: Complexity and Intangible Value in the Ecosystem of Digitizing Firms". MIS Quarterly 45, n.º 3 (1 de setembro de 2021): 1025–58. http://dx.doi.org/10.25300/misq/2021/15384.

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During the last four decades, digital technologies have disrupted many industries. Car control systems have gone from mechanical to digital. Telephones have changed from sound boxes to portable computers. But have the firms that digitized their products and services become more valuable than firms that didn’t? Here we introduce the construct of digital proximity, which considers the interdependent activities of firms linked in an economic network. We then explore how the digitization of products and services affects a company’s Tobin’s q—the ratio of market value over assets—a measure of the intangible value of a firm. Our panel regression methods and robustness tests suggest the positive influence of a firm’s digital proximity on its Tobin’s q. This implies that firms able to come closer to the digital sector have increased their intangible value compared to those that have failed to do so. These findings contribute a new way of measuring digitization and its impact on firm performance that is complementary to traditional measures of information technology (IT) intensity.

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Iwabuchi, Koichi, e Tae-Gyun Kim. "East Asian Rivalry, Digital Media and Proximate Enemies in Japan". Asia Review 6, n.º 2 (28 de fevereiro de 2017): 143. http://dx.doi.org/10.24987/snuacar.2017.02.6.2.143.

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Iwabuchi, Koichi. "East Asian Rivalry, Digital Media and Proximate Enemies in Japan". Asia Review 7, n.º 2 (28 de fevereiro de 2018): 183–204. http://dx.doi.org/10.24987/snuacar.2018.02.7.2.e.183.

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Shultz, Harris S. "Using a Digital Camera to Verify Quadratic Behavior". Mathematics Teacher 92, n.º 4 (abril de 1999): 292–93. http://dx.doi.org/10.5951/mt.92.4.0292.

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This activity presents practical difficulties, not the least of which is the proximity of a large amount of spraying water to the students marking the points on the wall. This difficulty can be circumvented by photographing the stream of water. In particular, the ability of many digital cameras to communicate electronically with personal computers simplifies the task of recording several coordinates of the stream of water.

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Krishna Teja, G., BL Rao, TSV Satyanarayana, TLG Sravanthi, D. Padmini e CD Saikumar. "Digital Record for Removable Denture Patients". Case Reports in Dentistry 2023 (19 de janeiro de 2023): 1–6. http://dx.doi.org/10.1155/2023/5712978.

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Denture marking is required for forensic and social reasons in the event that patients must be identified individually. The majority of surface marking and inclusion techniques are costly and time-consuming, and do not allow for the incorporation of large amounts of data. Near-field communication (NFC) is a popular wireless technology that allows you to transfer data between two devices that are in close proximity to each other. This tag features an internal memory that can be used to store patient information. Incorporating this tag into a denture can make things handy for storage of information digitally.

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Cockayne, Daniel, Agnieszka Leszczynski e Matthew Zook. "#HotForBots: Sex, the non-human and digitally mediated spaces of intimate encounter". Environment and Planning D: Society and Space 35, n.º 6 (10 de maio de 2017): 1115–33. http://dx.doi.org/10.1177/0263775817709018.

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Contemporary practices of sex and intimacy are increasingly digitally mediated. In this paper, we identify two distinctly spatial effects of these mediations. First, the digital extends the spaces of sex/uality beyond the immediately proximate, simultaneously expanding the potential for non-human object choice in intimate encounters. Second, the digital intensifies the experiential fidelity of intimate encounters by folding the remote into the spatially immediate, such that non-proximate intimate relations with human subjects as well as non-human objects may feel more proximate. We articulate these effects by building on and contributing to developments in the geographies of encounter, which allows us to bring together theories and conceptual framings of intimacy, digitality and sexuality in a uniquely spatial register. These effects of extension and intensification resonate in a selection of empirical examples of digitally mediated sex/uality that we place along continuums of more-and-less human and more-and-less proximate. These continuums comprise the conceptual axes of a heuristic framework that we advance to both (i) capture particular points at which configurations of spaces, practices and subject/object choices of sex crystallize given conditions of pervasive digital mediation, and (ii) provoke further interrogations of the multiple ways in which sex, sexuality and intimacy are recast by the digital.

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Shazwani Rosli, Rafhanah, Mohamed Hadi Habaebi e Md Rafiqul Islam. "Analysis of different digital filters for received signal strength indicator". Bulletin of Electrical Engineering and Informatics 8, n.º 3 (1 de fevereiro de 2019): 970–77. http://dx.doi.org/10.11591/eei.v8i3.1508.

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Due to high demand in Internet of Things applications, researchers are exploring deeper alternative methods to provide efficiency in terms of application, energy, and cost among other factors. A frequently used technique is the Received Signal Strength Indicator value for different Internet of Things applications. It is imperative to investigate the digital signal filter for the Received Signal Strength Indicator readings to interpret it into more reliable data. A contrasting analysis of three different types of digital filters is presented in this paper, namely: Simple Moving Average filter, Alpha Trimmed Mean filter and Kalman filter. There are three criteria used to observe the performance of these digital filters which are noise reduction, data proximity and delays. Based on the criteria, the choice of digital signal processing filter can be determined in accordance with its implementations in [ractice. For example, Alpha-Trimmed Meanfilter is shown to be more efficient if used in the pre-processing of Received Signal Strength Indicator readings for physical intrusion detection due to its high data proximity. Hence, this paper illustrates the possibilities of the use of Received Signal Strength Indicator in different Internet of Things applications given a proper choice of digital signal processing filter.

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Losurdo, Francesco, Alessandro Marra, Ernesto Cassetta, Umberto Monarca, Ivano Dileo e Vittorio Carlei. "Emerging specializations, competences and firms' proximity in digital industries: The case of London". Papers in Regional Science 98, n.º 2 (8 de maio de 2018): 737–53. http://dx.doi.org/10.1111/pirs.12376.

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Rosa, Alessia, Sara Mori e Michela Bongiorno. "The narration of proximity school spaces through digital storytelling, between tradition and innovation". IUL Research 4, n.º 8 (22 de dezembro de 2023): 44–69. http://dx.doi.org/10.57568/iulresearch.v4i8.469.

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RIME (Raccontare il Territorio con la Media Education) è un progetto di ricerca-formazione rivolto ai docenti delle scuole primarie e secondarie di I grado. L’obiettivo è quello di delineare percorsi di esplorazione e valorizzazione dei territori limitrofi alla scuola attraverso la realizzazione di digital storytelling associati a un sistema basato su principi di Realtà Mista (MR) e sul paradigma delle Tangible User Interfaces (TUI). L’articolo presenta uno studio di caso nell’ambito del progetto, delineando il processo e la ricaduta di un percorso media educativo incentrato sulla sostenibilità. I dati qualitativi raccolti danno conto di un connubio vincente, tra tecnologie ed esplorazione del territorio, capace di sostenere i processi di analisi, riflessione e valorizzazione degli spazi al di fuori delle mura scolastiche.

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Fatimah, Qori Izmi, Rivaldo Marselino e Asnil Asnil. "Web-Based DC Motor Speed Design and Control". MOTIVECTION : Journal of Mechanical, Electrical and Industrial Engineering 3, n.º 3 (2 de setembro de 2021): 101–12. http://dx.doi.org/10.46574/motivection.v3i3.99.

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This research discusses about web based speed control of DC motor. This research is a development research. The development that is design and assemble a speed control of DC motor so that becomes function work well. The result of research is speed control of DC motor and monitoring value of voltage, current and rotation speed from DC motor. Speed control of DC motor using PWM on the NodeMCU while monitoring of voltage, current and rotation speed from DC motor using voltage sensor, current sensor, and inductive proximity sensor. The results show that the system is great working. On the readings of the voltage value using voltage sensor and multimeter digital, there is a difference value between 0,01 to 0,13 Volt. While for the readings of the current value using current sensor ACS712 and multimeter digital, there is a difference average 0,01 Ampere. Proximity sensors are used by monitoring of the rotation speed of DC motor. The result is this sensor is working and function well. Penelitian ini membahas tentang pengendalian kecepatan motor DC menggunakan web. Penelitian ini merupakan penelitian pengembangan. Pengembangan yang dilakukan ialah merancang dan merakit sebuah web dan alat pengendali kecepatan motor DC sehingga menjadi satu kesatuan dan dapat berfungsi dengan baik. Hasil dari penelitian ini adalah mengatur kecepatan motor DC serta monitoring nilai tegangan, nilai arus dan nilai kecepatan putaran pada motor DC. Pengendalian kecepatan motor DC dilakukan dengan mengatur PWM pada NodeMCU sedangkan monitoring tegangan, arus dan kecepatan putaran motor DC menggunakan sensor tegangan, sensor arus ACS712 dan sensor proximity induktif. Hasil penelitian menunjukkan bahwa sistem bekerja dengan baik. Pada pembacaan tegangan menggunakan sensor tegangan dan multimeter digital terdapat selisih antara 0,01 sampai 0,13 Volt. Sedangkan untuk pembacaan nilai arus menggunakan sensor arus ACS712 dengan multimeter digital, terdapat selesih rata-rata 0,01 Ampere. Sensor proximity digunakan sebagai monitoring kecepatan putaran pada motor DC. Hasil menunjukkan bahwa sensor ini bekerja dengan baik sesuai dengan fungsinya.

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Landgraf Valerio, Claudia Lucia, e Kátia Auxiliadora De Arruda Pinto. "O Reflexo da Tecnologia Digital no Âmbito Escolar". Revista de Ensino, Educação e Ciências Humanas 21, n.º 3 (17 de dezembro de 2020): 265–69. http://dx.doi.org/10.17921/2447-8733.2020v21n3p265-269.

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Resumo Este artigo aborda o letramento digital, sua importância no contexto escolar e a formação de professores como meio para expandir a proximidade com a cultura digital. A pesquisa partiu da investigação em uma escola plena com intuito de verificar o comportamento dos professores em relação ao uso da tecnologia, e por isso, se reporta a entrevista realizada com o professor e gestor da Escola Plena, que irá abordar a problemática, ainda existente no contexto escolar em relação ao uso da tecnologia digital e que levou a algumas indagações caracterizando-se a pesquisa em uma abordagem qualitativa. Além da entrevista, de artigos, de livros, e de dispositivos legais, alguns questionamentos fizeram presença: de que maneira o letramento digital tem refletido na escola? Quais os desafios que são postos aos profissionais da educação em confronto com as dificuldades em adquirir recursos digitais e aplicá-los em seu contexto educacional? A partir da análise crítica da fala do diretor se entende que é necessário maior investimento na infraestrutura da escola com computadores e internet, e que os professores tenham formação para realizarem as atividades usando ferramentas digitais em suas práticas. O letramento digital está presente na escola, porém de maneira insuficiente. Diante das circunstâncias, em que a educação vem priorizando uso da tecnologia para conceber o ensino e aprendizagem dos alunos, é de suma importância que os professores, inseridos na cultura digital, obtenham habilidades e competências para uso das tecnologias digitais, possibilitando maior interação com seus alunos. Palavras-chave: Letramento Digital. Escola. Formação de Professores. AbstractThis article addresses digital literacy, its importance in the school context and teacher training as a means to expand its proximity to digital culture. The research started from an investigation held at an full-time school about the teachers’ behavior regarding the use of technology, and for that reason, the interview with a teacher and manager of that school will be reported, which will address the remaining problem in the school context, in relation to the use of digital technology and that led us to some inquiries characterizing the research in a qualitative approach. In addition to the interview, articles, books and legal provisions, some questions were present: how has digital literacy reflected in the school? What challenges are faced by education professionals before difficulties acquiring digital resources and applying them in their educational context? From the critical analysis of the director's speech, it is understood that it is necessary higher investment in the school's infrastructure with computers and internet signal, and that teachers need training to carry out activities using digital tools in their practices. Digital literacy is present at school but still insufficiently. Given the circumstances, in which education has prioritized the use of technology to conceive the students’ teaching-learning, it is extremely important that teachers, inserted in the digital culture, may obtain skills and competences for the use of digital technologies, allowing greater interaction with their students. Keywords: Digital Literacy. School. Teacher Training.

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Yousefzadeh, Vahid, Amir Babazadeh, Bhaskar Ramachandran, Eduard Alarcon, Lucy Pao e Dragan Maksimovic. "Proximate Time-Optimal Digital Control for Synchronous Buck DC–DC Converters". IEEE Transactions on Power Electronics 23, n.º 4 (julho de 2008): 2018–26. http://dx.doi.org/10.1109/tpel.2008.924843.

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Toplean, Adela. "Socio-Phenomenological Reflections on What Digital Death Brings and Denies in Terms of Relational Experiences to Orthodox Romanians". Social Sciences 12, n.º 12 (13 de dezembro de 2023): 686. http://dx.doi.org/10.3390/socsci12120686.

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Informed by Alfred Schütz’s phenomenology of social relations and its recent developments addressing online relationality, this essay reflects on the differences between online and offline death-related experiences in contemporary Romania. In Orthodox death cultures, religious, social, and familial bonds overlap. Orthodox Christianity is sceptical about body–mind separation and values unmediated liturgical communities. It is, thus, pertinent to ask what death online brings and denies in terms of experience to Romanian internet users. Some preliminary findings from our fieldwork are discussed. So far, on Romanian Facebook, three clusters of experience emerged widely: 1. A realm of belief where faith, unchallenged by digital practices, “decodes” deadly events across life-worlds; 2. Experiences of resistance and ambivalence of those who are stuck “in-between“, that is, those less competent in their traditions, yet sceptical about digital change; 3. Death experiences seem less synchronised across life-worlds for those who value electronic proximity: digital death and real death obey different rules. Historical specificity, we shall conclude, sets typified combinations of motives for what Romanians do in the proximity of death and how they do it. Digital technologies modulate the “hows” and, less notably, the “whats”.

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