Thematische Bibliographien / FIDO2

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Auswahl der wissenschaftlichen Literatur zum Thema „FIDO2“

Autor: Grafiati

Veröffentlicht am 28. Juni 2021

Zuletzt aktualisiert am 1. Februar 2022

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Zeitschriftenartikel zum Thema "FIDO2"

Dunkelberger, Phil. „FIDO2 puts biometrics at heart of web security“. Biometric Technology Today 2018, Nr. 8 (September 2018): 8–10. http://dx.doi.org/10.1016/s0969-4765(18)30126-7.

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Xu, Peng, Ruijie Sun, Wei Wang, Tianyang Chen, Yubo Zheng und Hai Jin. „SDD: A trusted display of FIDO2 transaction confirmation without trusted execution environment“. Future Generation Computer Systems 125 (Dezember 2021): 32–40. http://dx.doi.org/10.1016/j.future.2021.06.034.

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Farao, Aristeidis, Eleni Veroni, Christoforos Ntantogian und Christos Xenakis. „P4G2Go: A Privacy-Preserving Scheme for Roaming Energy Consumers of the Smart Grid-to-Go“. Sensors 21, Nr. 8 (11.04.2021): 2686. http://dx.doi.org/10.3390/s21082686.

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Due to its flexibility in terms of charging and billing, the smart grid is an enabler of many innovative energy consumption scenarios. One such example is when a landlord rents their property for a specific period to tenants. Then the electricity bill could be redirected from the landlord’s utility to the tenant’s utility. This novel scenario of the smart grid ecosystem, defined in this paper as Grid-to-Go (G2Go), promotes a green economy and can drive rent reductions. However, it also creates critical privacy issues, since utilities may be able to track the tenant’s activities. This paper presents P4G2Go, a novel privacy-preserving scheme that provides strong security and privacy assertions for roaming consumers against honest but curious entities of the smart grid. At the heart of P4G2Go lies the Idemix cryptographic protocol suite, which utilizes anonymous credentials and provides unlinkability of the consumer activities. Our scheme is complemented by the MASKER protocol, used to protect the consumption readings, and the FIDO2 protocol for strong and passwordless authentication. We have implemented the main components of P4G2Go, to quantitatively assess its performance. Finally, we reason about its security and privacy properties, proving that P4G2Go achieves to fulfill the relevant objectives.

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Poh, J., und J. Brimacombe. „A Comparison of the T-Piece, Venturi T-Piece and T-Bag for Emergence with the Laryngeal Mask“. Anaesthesia and Intensive Care 26, Nr. 5 (Oktober 1998): 526–28. http://dx.doi.org/10.1177/0310057x9802600509.

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We have compared the performance of a standard T-piece, a Venturi T-piece and a T-bag (T-piece with a small reservoir bag) for emergence with the laryngeal mask airway in 20 awake volunteers. FiO2, ETCO2 and FiCO2 were measured at oxygen flow rates of 2, 4 and 6 l.min-1 during three different breathing patterns: normal tidal volume, respiratory rate 12 .min-1; normal tidal volume, respiratory rate 20 .min-1; high tidal volume, respirutory rate 12 .min-1. The T-piece and T-bag delivered a higher overall average FiO2 than the Venturi T-piece (P<0.00001). Compared with normal breathing, FiO2 was reduced at the higher respiratory rate and tidal volume with the T-piece and T-bag hut was not reduced with the Venturi T-piece. FiO2 increased with increasing flow rates for all devices except the Venturi T-piece during normal breathing. ETCO2 was higher during normal breathing (4.4±0.0%) compared with higher respiratory rate (3.7±0.9%) and tidal volume (3.4±0.7%) for all devices. There were no differences in overall ETCO2 between devices. The FiCO2 was never higher than 0.2% in any subject. We conclude that the T-piece and T-bag are more effective oxygen enrichment devices than the Venturi T-piece. The T-bag provides a useful visual signal about depth and frequency of respiration.

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Barnas, G. M., und W. Rautenberg. „Shivering and cardiorespiratory responses during normocapnic hypoxia in the pigeon“. Journal of Applied Physiology 68, Nr. 1 (01.01.1990): 84–87. http://dx.doi.org/10.1152/jappl.1990.68.1.84.

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To study the inhibitory effect of hypoxia on the cold defense mechanism, pigeons were exposed at low ambient temperature (5 degrees C) to various inhaled gas mixtures: normoxia [0.21 fractional concentration of O2 (FIO2)], hypoxia (0.07 FIO2), and normocapnic hypoxia (0.07 FIO2 + 0.045 FICO2). Electromyographic (EMG) activity indicative of shivering thermogenesis was inhibited during hypoxia, and body temperature (Tre) fell by 0.09 degrees C/min. Respiratory frequency (f) and minute ventilation (VE) increased by 143 and 135%, respectively, compared with normoxia, but tidal volume (VT) was not changed. PO2, PCO2, and O2 contents in the arterial and mixed venous blood were decreased and pH was enhanced. During normocapnic hypoxia, shivering EMG was present at approximately 50% of the normoxic intensity; Tre fell by only 0.04 degrees C/min. Arterial and mixed venous PCO2 and pH were the same as during normoxia, but VE increased by 430% because of twofold increases in both f and VT. During normocapnic hypoxia, arterial PO2 and O2 content were higher than during hypoxia alone. We conclude that the persistence of shivering during normocapnic hypoxia is due to maintenance of critical levels of arterial PO2 and O2 content.

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Vigil-Hayes, Morgan, Elizabeth Belding und Ellen Zegura. „FiDO“. Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies 1, Nr. 3 (11.09.2017): 1–25. http://dx.doi.org/10.1145/3132030.

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Schiffer, Stephen. „The `Fido'-Fido Theory of Belief“. Philosophical Perspectives 1 (1987): 455. http://dx.doi.org/10.2307/2214153.

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Lazard, Jackson L., Gerald L. Wolf, Jean Charchaflieh und George W. Sidebotham. „Surgical Drape Combustion in FIO2=0.21, FIO2=0.50 and FIO2=0.95“. Anesthesiology 2001, Nr. 3 (01.09.2001): B24. http://dx.doi.org/10.1097/00000542-200109001-00024.

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Canet, E., J. L. Carroll und M. A. Bureau. „Hypoxia-induced periodic breathing in newborn lambs“. Journal of Applied Physiology 67, Nr. 3 (01.09.1989): 1226–33. http://dx.doi.org/10.1152/jappl.1989.67.3.1226.

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This study was designed to elucidate the effect of hypoxia on the breathing rhythmicity and the effect of hypoxia on periodic breathing (PB) in two groups of newborn lambs (less than 2 days and 10 days of age). Lambs undergoing a hypoxic ventilatory test [0.08 inspired O2 fraction (FIo2) for 13 min] experienced no apnea or PB in hypoxia, but all developed PB during the 1-min period immediately after their abrupt return to 0.21 FIo2. This PB occurred when alternation of arterial PO2 and PCO2 in mild hypoxic and hypocapnic conditions induced an overshoot-undershoot response of the chemical drive to breathe. The magnitude of PB was found to be greater in the animals with a higher peripheral chemoreflex sensitivity to hypoxia but ceased altogether when the hypoxic-hypocapnic conditions were resolved. When these conditions were removed more quickly, that is, when the animals were returned either to 0.50 FIo2 or to 0.03 FIco2, no PB was observed. To clarify the role of hypoxia as a central depressant on the genesis of PB, we tested to determine whether additional central tissue hypoxia, using carboxyhemoglobin (30%), would worsen the episodes of PB. No effect on breathing rhythmicity was observed. These findings suggest not only that, in newborn animals and adults, the mechanisms of post-hypoxia-induced PB are identical but that the PB elicited in mild hypoxic conditions is a peripheral chemoreflex-mediated event rather than a centrally mediated one.

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Cain, John R., Laura M. Parkes, Peter Eadsforth, Susan C. Beards und Alan Jackson. „Impact of Gas Delivery Systems on Imaging Studies of Human Cerebral Blood Flow“. Radiology Research and Practice 2013 (2013): 1–5. http://dx.doi.org/10.1155/2013/694803.

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Purpose. To compare a semiopen breathing circuit with a non-rebreathing (Hudson mask) for MRI experiments involving gas delivery.Methods and Materials. Cerebral blood flow (CBF) was measured by quantitative phase contrast angiography of the internal carotid and basilar arteries in 18 volunteers (20–31 years). In 8 subjects, gases were delivered via a standard non-rebreathing (Hudson mask). In 10 subjects, gases were delivered using a modified “Mapleson A” semiopen anesthetic gas circuit and mouthpiece. All subjects were given 100% O2, medical air, and carbogen gas (95% O2and 5% CO2) delivered at 15 L/min in a random order.Results. The Hudson mask group showed significant increases in CBF in response to increased FiCO2compared to air (+9.8%). A small nonsignificant reduction in CBF (−2.4%) was seen in response to increased inspired concentrations of oxygen (FiO2). The Mapleson A group showed significantly larger changes in CBF in response to both increased inspired concentrations of carbon dioxide (FiCO2) (+32.2%,P<0.05) and FiO2(−14.6%,P<0.01).Conclusions. The use of an anaesthetic gas delivery circuit avoids entrainment of room air and rebreathing effects that may otherwise adversely affect the experimental results.

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Dissertationen zum Thema "FIDO2"

Randimbiarison, Jérôme. „Signature numérique d'un document basée sur FIDO2“. Master's thesis, Université Laval, 2020. http://hdl.handle.net/20.500.11794/66598.

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En cette ère numérique, l’utilisation des documents papier s’avère peu pratique et inefficace, ce qui motive les sociétés à évoluer vers l’utilisation des documents électroniques (ou e-docs). Ce désir d’innover vers une opération sans papier peut améliorer l’efficacité et la qualité des services d’administrations publiques ou privées de manière à accélérer leurs activités et en même temps mieux satisfaire les besoins des clients. Cependant, cette pratique a créé des nouveaux besoins, tels que la signature numérique réelle de documents. Dans ce mémoire, nous avons proposé un nouveau schéma de signature numérique utilisant FIDO2, qui se trouve être une nouvelle norme d’authentification sécurisée en ligne basée sur la signature numérique. Le fait que FIDO2 soit un standard libre permet aux développeurs de logiciel et de matériel d’implémenter plus facilement leurs propres produits. Cela nous a inspiré à l’utiliser pour une fin de signature numérique, l’idée étant de remplacer le défi envoyé par le serveur avec le hash de e-docs et de l’envoyer à l’appareil du signataire afin que ce dernier signe avec sa clé privée. Comme dans le cas de l’infrastructure à clé publique, chaque utilisateur possédait une paire de clés, c’est-à-dire une clé privée et une clé publique. Un signataire doit confirmer son identification biométrique (empreinte digitale, reconnaissance faciale, voix, etc.) ou son code PIN pour accéder à la clé privée stockée localement sur son appareil et signer un document. Au cours de notre recherche, nous avons effectué plusieurs tests avec différents équipements (PC, USB FIDO, Smartphone) ainsi que différentes OS (Android, iOS, Windows). Les résultats de nos tests nous montrent que nous pouvons utiliser FIDO2 pour signer un document électronique. Cette nouvelle approche proposée peut être utilisée pour une signature face à face (en locale) ou à distance (en ligne). Le prototype développé pour la mise en œuvre de notre approche a été validé auprès d’usagers types (membres clients et conseillers) dans une entreprise.
In this digital era, the use of paper documents is impractical and inefficient, which motivates companies to move towards the use of electronic documents (or e-docs). This desire to innovate towards a paperless operation can improve the efficiency and quality of public or private administration services so as to speed up their activities and at the same time better meet customer needs. However, this practice has created new needs, such as the actual digital signature of documents. In this thesis, we have proposed a new digital signature scheme using FIDO2, which happens to be a new standard for secure online authentication based on digital signatures. The fact that FIDO2 is a free standard makes it easier for software and hardware developers to implement their own products. This inspired us to use it a digital signature purpose, the idea being, to replace the challenge sent by the server with the hash of e-docs and send it to the signer’s device so that the latter signs with his private key. As with public key infrastructure, each user had a key pair, that is, a private key and a public key. A signatory must confirm their biometric identification (fingerprint, facial recognition, voice, etc.) or PIN code to access the private key stored locally on their device and sign a document. During our research, we carried out several tests with different equipment (PC, USB FIDO, Smartphone) as well as different OS (Android, iOS, Windows). The results of our tests show us that we can use FIDO2 to sign an electronic document. This proposed new approach can be used for a face-to-face (local) or remote (online) signature. The prototype developed for the implementation of our approach has been validated with typical users (member-clients and advisers) in a company.

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Rasmussen, Brian. „A Usability Study of FIDO2 Roaming Software Tokens as a Password Replacement“. BYU ScholarsArchive, 2021. https://scholarsarchive.byu.edu/etd/9227.

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The use of passwords for user authentication has significant shortcomings. As society becomes more dependent on the internet and web services, we need to find a replacement authentication method that users are willing to use. WebAuthn is one potential technology for password replacement. Recent studies have shown that users enjoy the usability of WebAuthn and hardware tokens as a password replacement but don't want to carry them around. Meanwhile, little to no research involves the use of software tokens. I carried out a user study of WebAuthn and roaming software tokens when used as a password replacement. We were able to learn if the shortcoming of WebAuthn and hardware tokens were remedied by the use of smart phones as software tokens. Software tokens have similiar usability to hardware tokens and are more usable than passwords. Users continued fearing loss of access to their account when using software tokens. Users were less worried about carrying an extra device but replaced that fear with the fear of a dead battery or a broken phone.

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Chripko, Juraj. „Systém Excalibur - implementace SSO“. Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2021. http://www.nusl.cz/ntk/nusl-445588.

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Cieľom systému Excalibur je presunúť autentifikáciu od hesiel používaných v súčastnosti ku bezheslovej budúcnosti. Zámerom tejto práce je integrácia systému Excalibur s webovými bezheslovými protokolmi SAML a FIDO2. Štandard SAML bol integrovaný do systému Excalibur a úspešne otestovaný s niekoľkými známymi aplikáciami. Excalibur má na starosti samotnú autentifikáciu a manažment používateľov a SAML je použitý na predanie týchto informácii aplikáciam tretích strán. FIDO2 je, na druhú stranu, kompletný autentifikačný štandard, ktorý môže byť do systému Excalibur integrovaný viacerými spôsobmi. Ako najsľubnejší spôsob sa javí výmena autentifikačného mechanizmu systému Excalibur za FIDO2, ale slabá podpora štandardu a chýbajúce funkcie to zatiaľ nedovoľujú.

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Bunuan, Paul F. „FIDOE: A Proof-of-concept Martian Robotic Support Cart“. Digital WPI, 1999. https://digitalcommons.wpi.edu/etd-theses/906.

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"The National Aeronautics and Space Administration (NASA) plans to send a human exploration team to Mars within the next 25 years. In support of this effort Hamilton Standard Space Systems International (HSSSI), current manufacturers of the Space Shuttle spacesuit, began exploring alternative solutions for supporting an astronaut during a Martian surface exploration. A design concept was developed by HSSSI to integrate a minimally equipped Martian spacesuit with a robotic support cart capable of providing life support assistance, communications, and independent navigational functions. To promote NASA's visionary efforts and increase university relations, HSSSI partnered with Worcester Polytechnic Institute (WPI) to develop a proof-of-concept robotic support cart system, FIDOE - Fully Independent Delivery of Expendables. As a proof-of-concept system, the primary goal of this project was to demonstrate the feasibility of current technologies utilized by FIDOE's communication and controls system for future Martian surface explorations. The primary objective of this project was to procure selected commercial-off-the-shelf components and configure these components into a functional robotic support cart. The design constraints for this project, in addition to the constraints imposed by the Martian environment and HSSSI's Martian spacesuit, were a one-year time frame and a $20,000 budget for component procurement. This project was also constrained by the protocols defined by the NASA demonstration test environment. The final design configuration comprised of 37 major commercial off-the-shelf components and three individual software packages that integrated together to provide FIDOE's communications and control capabilities. Power distribution was internally handled through a combination of a main power source and dedicated power supplies. FIDOE also provided a stowage area for handling assisted life support systems and geological equipment. The proof-of-concept FIDOE system proved that the current technologies represented by the selected components are feasible applications for a Mars effort. Specifically, the FIDOE system demonstrated that the chosen technologies can be integrated to perform assisted life support and independent functions. While some technologies represented by the proof-of-concept system may not adequately address the robustness issues pertaining to the Mars effort, e.g., voice recognition and power management, technology trends indicate that these forms of technology will soon become viable solutions to assisting an astronaut on a Martian surface exploration."

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Coluzzi, Seth J. Carter Tim. „Structure and interpretation in Luca Marenzio's settings of Il pastor fido“. Chapel Hill, N.C. : University of North Carolina at Chapel Hill, 2007. http://dc.lib.unc.edu/u?/etd,834.

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Thesis (Ph. D.)--University of North Carolina at Chapel Hill, 2007.
Title from electronic title page (viewed Dec. 18, 2007). "... in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the Department of Music." Discipline: Music; Department/School: Music.

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Handley, D. R. „The Pastor Fido, 'tragicomedia pastorale' : The evolution of a new dramatic form“. Thesis, University of Cambridge, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.384478.

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Alejandro, Salinas Rodrigo, und Zamudio Alfredo Alonso Gutierrez. „Rendimiento del Age, Pao2/FiO2 ratio y Plateau Pressure score (APPS) como factor pronóstico de mortalidad en pacientes con Síndrome de Distrés Respiratorio Agudo internados en la Unidad de Cuidados Intensivos durante la pandemia de COVID-19 en una clínica privada de Lima-Perú“. Universidad Peruana de Ciencias Aplicadas (UPC), 2020. http://hdl.handle.net/10757/657294.

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Objetivo: Evaluar el rendimiento del APPS para la predicción de mortalidad a los 28 días en pacientes con diagnóstico de síndrome de distrés respiratorio agudo en una unidad de cuidados intensivos en una clínica privada peruana. Diseño: Cohorte retrospectiva. Se recolectarán los datos de manera retrospectiva de pacientes atendidos desde el 6 de Marzo de 2020 hasta Mayo de 2021, periodo comprendido dentro de la pandemia por SARS-CoV-2 en el Perú.

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Galvin, Geordie. „Comparison of on-pond measurement and back calculation of odour emission rates from anaerobic piggery lagoons“. University of Southern Queensland, Faculty of Engineering and Surveying, 2005. http://eprints.usq.edu.au/archive/00001426/.

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Odours are emitted from numerous sources and can form a natural part of the environment. The sources of odour range from natural to industrial sources and can be perceived by the community dependant upon a number of factors. These factors include frequency, intensity, duration, offensiveness and location (FIDOL). Or in other words how strong an odour is, at what level it becomes detectable, how long it can be smelt for, whether or not the odour is an acceptable or unacceptable smell as judged by the receptor (residents) and where the odour is smelt. Intensive livestock operations cover a wide range of animal production enterprises, with all of these emitting odours. Essentially, intensive livestock in Queensland, and a certain extent Australia, refers to piggeries, feedlots and intensive dairy and poultry operations. Odour emissions from these operations can be a significant concern when the distance to nearby residents is small enough that odour from the operations is detected. The distance to receptors is a concern for intensive livestock operations as it may hamper their ability to develop new sites or expand existing sites. The piggery industry in Australia relies upon anaerobic treatment to treat its liquid wastes. These earthen lagoons treat liquid wastes through degradation via biological activity (Barth 1985; Casey and McGahan 2000). As these lagoons emit up to 80 per cent of the odour from a piggery (Smith et al., 1999), it is imperative for the piggery industry that odour be better quantified. Numerous methods have been adopted throughout the world for the measurement of odour including, trained field sniffers, electronic noses, olfactometry and electronic methods such as gas chromatography. Although these methods all have can be used, olfactometry is currently deemed to be the most appropriate method for accurate and repeatable determination of odour. This is due to the standardisation of olfactometry through the Australian / New Zealand Standard for Dynamic Olfactometry and that olfactometry uses a standardised panel of "sniffers" which tend to give a repeatable indication of odour concentration. This is important as often, electronic measures cannot relate odour back to the human nose, which is the ultimate assessor of odour. The way in which odour emission rates (OERs) from lagoons are determined is subject to debate. Currently the most commonly used methods are direct and indirect methods. Direct methods refer to placing enclosures on the ponds to measure the emissions whereas indirect methods refer to taking downwind samples on or near a pond and calculating an emission rate. Worldwide the odour community is currently divided into two camps that disagree on how to directly measure odour, those who use the UNSW wind tunnel or similar (Jiang et al., 1995; Byler et al., 2004; Hudson and Casey 2002; Heber et al., 2000; Schmidt and Bicudo 2002; Bliss et al., 1995) or the USEPA flux chamber (Gholson et al., 1989; Heber et al., 2000; Feddes et al., 2001; Witherspoon et al., 2002; Schmidt and Bicudo 2002; Gholson et al., 1991; Kienbusch 1986). The majority of peer reviewed literature shows that static chambers such as the USEPA flux chamber under predict emissions (Gao et al., 1998b; Jiang and Kaye 1996) and based on this, the literature recommends wind tunnel type devices as the most appropriate method of determining emissions (Smith and Watts 1994a; Jiang and Kaye 1996; Gao et al., 1998a). Based on these reviews it was decided to compare the indirect STINK model (Smith 1995) with the UNSW wind tunnel to assess the appropriateness of the methods for determining odour emission rates for area sources. The objective of this project was to assess the suitability of the STINK model and UNSW wind tunnel for determining odour emission rates from anaerobic piggery lagoons. In particular determining if the model compared well with UNSW wind tunnel measurements from the same source; the overall efficacy of the model; and the relationship between source footprint and predicted odour emission rate.

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Silva, Helen Roberta Amaral da [UNESP]. „Efeitos do óxido nitroso e do tipo de ventilação sobre a lactatatemia, glicemia e hemograma, em leitões anestesiados com propofol“. Universidade Estadual Paulista (UNESP), 2016. http://hdl.handle.net/11449/143916.

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Avaliaram-se os efeitos de diferentes concentrações do óxido nitroso (N2O) e oxigênio, sobre os índices de lactato sérico, glicemia e características do hemograma, em suínos anestesiados com propofol e mantidos em ventilação espontânea ou controlada a pressão associada ou não à PEEP. Para isso, 48 animais machos ou fêmeas, foram distribuídos aleatoriamente em seis grupos, denominados, GN10 (FiO2 a 90% e N2O a 10%), GA10 (FiO2 a 90% e ar comprimido a 10%), GN30 (FiO2 a 70% e N2O a 30%), GA30 (FiO2 a 70% e ar comprimido a 30%), GN50 (FiO2 a 50% e N2O a 50%) e GA50 (FiO2 a 50% e ar comprimido a 50%). Empregou-se, como medicação pré-anestésica azaperona (2 mg/kg por via intramuscular), indução anestésica com propofol (dose efeito) bem como manutenção anestésica (0,5 mg/kg/min). Após a intubação o traqueotubo foi acoplado ao aparelho de anestesia inalatória para fornecimento das misturas de gases preconizadas para cada grupo. Após 100 minutos da indução anestésica, foi administrado por via intravenosa rocurônio (0,6 mg/kg IV), seguido de infusão contínua (0,6 mg/kg/hora) e inciou-se a ventilação controlada a pressão (15 cmH2O). A primeira amostra sanguínea foi coletada 20 minutos decorridos da aplicação da azaperona e imediatamente antes da indução anestésica (M0). Após 40 minutos, nova amostra de sangue foi obtida (M1), seguida de mais três colheitas decorridos 100, 175 e 220 minutos da indução da anestesia, tempos estes que coincidiram com o início da ventilação mecânica (M2), início da PEEP (M3) e final do experimento (M4), respectivamente. Todas as amostras foram acondicionadas em microtubos contendo Fluoreto de Na ou EDTA. Os dados foram submetidos à análise de variância (ANOVA) para avaliar e comparar os valores médios, utilizando o procedimento de Tukey, sendo considerado significativo valor de P<0,05. Os resultados revelaram diferenças estatísticas entre momentos e entre grupos nas variáveis hematológicas (Ht, He, Hb, plaquetas, Leucócitos Totais, EOS, NB, NS, Linf) glicemia e lactato.
This study evaluated the effects of different concentrations of nitrous oxide (N2O) and oxygen, on seric level of lactate, glycemia and hematological dynamic, in propofol-anesthetized pigs under spontaneous breathing or in pressure-controlled ventilation with or without PEEP. For this, forty eight animals, males or females, were randomly divided into six groups: GN10 (FiO2 = 90% and N2O = 10%), GA10 (FiO2 = 80% and air = 10%), GN30 (FiO2 = 70% and N2O = 30%), GA30 (FiO2 = 70% and air = 30%), GN50 (FiO2 = 50% and N2O = 50%), GA50 (FiO2 = 50% and air = 50%). Azaperone was administered (2.0 mg/kg IM) as premadication. The induction was performed with propofol at sufficient doses to endotracheal intubation and for the maintenance of anesthesia, the same anesthesic were used (0.5 mg/kg/min). After 100 minutes of the induction, were administered rocuronium (0.6 mg/kg IV) followed by continuous infusion (0.6 mg/kg/h) and started mechanical ventilation (15 cmH2O). Were coleted blood samples in the first moment (M0), twenty minutes after azaperone administration. After forty minutes new blood sample were obtained (M1), followed by three more harvest past 100, 175 and 220 minutes after anesthesia induction (M2, M3 and M4 respectively). The samples were condition in microtubes with sodium fluoride or EDTA. Repeated measures analyses of variance was the statistical method used to evaluate pair wise comparisons of mean were mode, using Tukey’s procedure. A P value <0,05 was considered significant. Among the main changes were between groups and moments in HT, RBC, HGB, platelets, WBC, EOS, NS, Lymph, glucose blood and lactate.
FAPESP: 2013/25655-0

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Ido, Cléber Kazuo. „Parâmetros hemodinâmicos, ventilatórios e intracranianos, em suínos anestesiados com isofluorano ou propofol, mantidos sob ventilação espontânea e fio2 de 0,5 /“. Jaboticabal, 2016. http://hdl.handle.net/11449/143928.

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Orientador: Newton Nunes
Banca: Danielli Parrilha de Paula
Banca: Roberto Thiesen
Resumo: Com esse estudo procurou-se avaliar comparativamente a anestesia total intravenosa pelo propofol e a anestesia geral inalatória pelo isofluorano e determinar qual modalidade anestésica foi mais vantajosa à dinâmica cardiorrespiratória, bem como sobre parâmetros intracranianos, em suínos recebendo FiO2 de 0,5 sob ventilação espontânea. Para tanto foram utilizados 16 animais machos ou fêmeas, distribuídos aleatoriamente em dois grupos de igual número: GI (Isofluorano e FiO2=0,5) e GP (Propofol e FiO2=0,5). Para todos os suínos, empregou-se como medicação pré-anestésica azaperona (2 mg/kg). Em ambos os grupos, os animais foram induzidos com propofol pela via intravenosa, na dose necessária para intubação orotraqueal. No grupo GI, após a intubação orotraqueal dos animais, o vaporizador foi ajustado para 1,5 CAM. No grupo GP, a manutenção anestésica foi realiza com propofol na taxa de 0,5 mg/kg/min. Em ambos os grupos, os parâmetros hemodinâmicos, ventilatórios e intracranianos foram avaliados 40 minutos após a indução da anestesia (M0), seguida de novas mensurações em intervalos de 15 minutos (de M15 a M60). Os resultados das variáveis paramétricas foram analisados pelo software SAS 9.1 (2010). De todos os parâmetros avaliados, houve diferença entre grupos nas variáveis respiratórias (PvO2, Hbv, ETCO2, f, Vt e Tins), cardiovasculares (PAS e IRPT) e intracranianos (PIC, PPC e TIC). Com relação aos momentos dentro do mesmo grupo, houve diferença no GI para as variáveis respiratória... (Resumo completo, clicar acesso eletrônico abaixo)
Abstract: The aim of the present study was to compare the cardiorrespiratory dynamics as well as the intracranial parameters of piglets anesthetized with either total intravenous anesthesia with propofol or inhalation anesthesia with isoflurane and receiving FiO2 of 0,5 and kept under spontaneous ventilation. To that purpose, sixteen animals, males or females, were randomly divided into two groups: GI (Isoflurane and FiO2=0,5) and GP (Propofol and FiO2=0,5). For all pigs, azaperone (2 mg/kg) was used as premedication. In both groups, the animals were induced with intravenous administration of propofol, at the required dose for endotracheal intubation. In GI, after endotracheal intubation, the vaporizer was adjusted to 1.5 MAC. In GP, the maintenance of anesthesia was performed with constant rate infusion of propofol, at rate of 0,5 mg/kg/min. In both groups, hemodynamic, ventilatory and intracranial parameters were evaluated 40 minutes after anesthetic induction (M0), followed by 15-minutes intervals (M15 to M60). The results of parametric variables were analyzed by SAS 9.1 software (2010). In all parameters, there were differences between groups in the respiratory (PvO2, Hbv, PETCO2, f, Vt and Tins), cardiovascular (SBP and TPRI) and intracranial variables (ICP, CPP and ICT). Regarding moments in the same group, there were differences in GI in the respiratory (PaCO2, pH, PvO2, ETCO2, Vm, PAO2 and P(A-a)O2) and intracranial variables (TIC). In GP, significantly differed the pH, PvCO2, ... (Complete abstract click electronic access below)
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Bücher zum Thema "FIDO2"

Calmenson, Stephanie. Fido. New York: Scholastic, 1987.

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Semper fido. New York, N.Y: Scholastic Inc., 2012.

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Fidor. Standard solutions from Fidor. Feltham, Middlesex: Fidor, 1990.

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Guarini, Battista. Il pastor fido. Venezia: Marsilio, 1999.

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Pedro Calderón de la Barca. El pastor fido. Pamplona: Universidad de Navarra, 2003.

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Palmer, Barbara A. Finding Fido, the feline. [Hilton, N.Y.]: BP FolkArt Press, 2004.

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1956-, Carlotto Massimo, Hrsg. Mi fido di te. Torino: Einaudi, 2007.

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Non mi fido dei santi. Reggio Emilia: Aliberti, 2011.

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Davis, Jim, 1945 July 28- und Johnson Joe tr, Hrsg. The Garfield Show: Fido Food Feline. New York: Papercutz, 2015.

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Basile, Domenico. Il Pastor fido in lingua napolitana. Roma: Edizioni Benincasa, 1997.

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Buchteile zum Thema "FIDO2"

Barbosa, Manuel, Alexandra Boldyreva, Shan Chen und Bogdan Warinschi. „Provable Security Analysis of FIDO2“. In Advances in Cryptology – CRYPTO 2021, 125–56. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-84252-9_5.

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Wang, Xihai, Yue Wang und Hailiang Wu. „FIDO“. In Partnering with HMS: A Guide for App Developers, 409–32. Boca Raton: CRC Press, 2021. http://dx.doi.org/10.1201/9781003206699-11.

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Devitt, Michael. „The Revival of ‘Fido’-Fido“. In Cause, Mind, and Reality, 73–94. Dordrecht: Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-011-9734-2_6.

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Aboab, Jerome, Bruno Louis, Bjorn Jonson und Laurent Brochard. „Influence of FIO2 on the PaO2/FIO2 ratio“. In Applied Physiology in Intensive Care Medicine, 57–60. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-01769-8_14.

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Loutfi, Ijlal, und Audun Jøsang. „FIDO Trust Requirements“. In Secure IT Systems, 139–55. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-26502-5_10.

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Aboab, Jérôme, Bruno Louis, Björn Jonson und Laurent Brochard. „Relation between PaO2/FIO2 ratio and FIO2: a mathematical description“. In Applied Physiology in Intensive Care Medicine 1, 63–66. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-28270-6_15.

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Hanlon, Michael. „Is fido a zombie?“ In 10 Questions Science Can’t Answer (Yet), 16–42. London: Palgrave Macmillan UK, 2007. http://dx.doi.org/10.1007/978-1-137-51091-4_2.

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Scott, Michael. „FIDO – That Dog Won’t Hunt“. In Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, 255–64. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-66922-5_17.

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Müller, Peter. „Guarini, Giovanni Battista: Il pastor fido“. In Kindlers Literatur Lexikon (KLL), 1–2. Stuttgart: J.B. Metzler, 2020. http://dx.doi.org/10.1007/978-3-476-05728-0_3903-1.

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Wendt, M., E. Schlüter, U. Spiegel und P. Lawin. „The Influence of Breathing Pattern and FiO2“. In Oxygen Transport in the Critically Ill Patient, 3–6. Berlin, Heidelberg: Springer Berlin Heidelberg, 1990. http://dx.doi.org/10.1007/978-3-642-75646-7_1.

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Konferenzberichte zum Thema "FIDO2"

Ghorbani Lyastani, Sanam, Michael Schilling, Michaela Neumayr, Michael Backes und Sven Bugiel. „Is FIDO2 the Kingslayer of User Authentication? A Comparative Usability Study of FIDO2 Passwordless Authentication“. In 2020 IEEE Symposium on Security and Privacy (SP). IEEE, 2020. http://dx.doi.org/10.1109/sp40000.2020.00047.

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Wagner, Paul, Kris Heid und Jens Heider. „Remote WebAuthn: FIDO2 Authentication for Less Accessible Devices“. In 7th International Conference on Information Systems Security and Privacy. SCITEPRESS - Science and Technology Publications, 2021. http://dx.doi.org/10.5220/0010192703680375.

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Klieme, Eric, Jonathan Wilke, Niklas van Dornick und Christoph Meinel. „FIDOnuous: A FIDO2/WebAuthn Extension to Support Continuous Web Authentication“. In 2020 IEEE 19th International Conference on Trust, Security and Privacy in Computing and Communications (TrustCom). IEEE, 2020. http://dx.doi.org/10.1109/trustcom50675.2020.00254.

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Vasileios Grammatopoulos, Athanasios, Ilias Politis und Christos Xenakis. „A web tool for analyzing FIDO2/WebAuthn Requests and Responses“. In ARES 2021: The 16th International Conference on Availability, Reliability and Security. New York, NY, USA: ACM, 2021. http://dx.doi.org/10.1145/3465481.3469209.

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Alqubaisi, Fatima, Ahmad Samer Wazan, Liza Ahmad und David W. Chadwick. „Should We Rush to Implement Password-less Single Factor FIDO2 based Authentication?“ In 2020 12th Annual Undergraduate Research Conference on Applied Computing (URC). IEEE, 2020. http://dx.doi.org/10.1109/urc49805.2020.9099190.

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Guo, Chengqian, Quanwei Cai, Qiongxiao Wang und Jingqiang Lin. „Extending Registration and Authentication Processes of FIDO2 External Authenticator with QR Codes“. In 2020 IEEE 19th International Conference on Trust, Security and Privacy in Computing and Communications (TrustCom). IEEE, 2020. http://dx.doi.org/10.1109/trustcom50675.2020.00076.

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Witherell, Paul, Sundar Krishnamurty, Ian R. Grosse und Jack Wileden. „FIDOE: A Framework for Intelligent Distributed Ontologies in Engineering“. In ASME 2008 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/detc2008-50099.

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This paper presents FIDOE, a Framework for Intelligent Distributed Ontologies in Engineering. FIDOE consists of a suite of logic rules and templates for interactively developing relationships between properties of linked ontologies. The logical rules embedded in FIDOE automatically operate on various discipline-specific ontologies to systematically identify influences, direct and indirect, of proposed design modifications on other aspects of the design through common domain concepts. Once potential influences are identified, FIDOE enables the user to precisely define the domain relationships, using predefined templates, between the identified domain concepts that enumerate influence types. This tool, thus, provides a pervasive, real time awareness of the implications of design changes during the design process in a distributed environment. The application of FIDOE to distributed and multidisciplinary design problems is detailed with the aid of an industry-provided printed circuit board (PCB) design. Here, commonalities among indirectly connected domain ontologies (electrical, mechanical and thermal domains) are identified using the developed query method and subsequent relationships are defined. These relationships are then applied to provide a collaborative understanding and awareness of the distributed process, all while demonstrating the effectiveness of this approach. This awareness was successfully able to address some previously identified industry concerns, returning promising results while laying a solid foundation for future work.

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Deshpande, Girish, Gautham Oroskar und Derek Oswald. „A Portable Handheld Oxygen Blender: A Novel Design to Reduce Early Oxygen Toxicity“. In ASME 2014 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/imece2014-36619.

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Oxygen is an essential therapeutic agent used extensively in all hospitals for patients with compromised function of the respiratory or cardiac systems. All patients (with the exception of neonates with certain heart diseases) are resuscitated with 100% oxygen. The American Heart Association Guidelines for Resuscitation state that it is essential in the post-resuscitative phase to decrease the concentration of O2 provided to keep oxyhemoglobin saturation (SpO2) > 94%, with a goal of avoiding hyperoxia while ensuring adequate oxygen delivery. Hyperoxia has been shown to be responsible for worsening tissue injury via oxidative damage following ischemia-reperfusion. Therefore, it is important in the post-resuscitative phase to use the lowest inspired oxygen concentration (FiO2) that will maintain SpO2 ≥ 94%. To address this, clinicians use oxygen blenders: devices that mix room air (21% O2) and medical grade oxygen (100% O2) to create a desirable FiO2. Current oxygen blenders have the disadvantage of being wall-mounted, bulky, and are limited to a small set of oxygen delivery devices (nebulizers, mechanical ventilators) with which they can interface. We developed an oxygen blending device capable of mixing room air and 100% O2 using the venturi principle. The device features a cylindrical body with a venturi nozzle and an entrainment window. It is handheld, portable, and machined from acrylic plastic. An oxygen blender with these features allows for appropriate oxygen therapy during patient transport. As oxygen flows through the device from the inlet orifice, atmospheric air is drawn in through the window, mixed, and then delivered to the patient through the outlet orifice. We designed the outlet orifice to have the same dimensions as the inlet orifice, allowing for universal integration with any device that connects to standard oxygen tubing. The entrainment window area can be adjusted by twisting a cover over the body of the blender, thus adjusting the FiO2 delivery. Using a venturi nozzle of 6.35 mm in diameter and an entrainment window area of 97 mm2, we achieved FiO2 ranging from 40% to 50% using input flow of 100% O2 at 6 L/min at 50 psi (via rotameter). The key feature of this device is that it can be interposed between any standard oxygen tubing allowing control of FiO2 at the bedside of the patient in hospital or during transport. Further work is needed to achieve a wider FiO2 range.

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Amosov, V. I., D. A. Zubkov, V. I. Khlomko, T. I. Kalinkina und Yu M. Kuzmin. „FIDO U2F TWO FACTOR AUTHENTICATION PROTOCOL“. In Modern Technologies in Science and Education MTSE-2020. Ryazan State Radio Engineering University, 2020. http://dx.doi.org/10.21667/978-5-6044782-1-9-137-141.

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Zhang, Yongxian, Xinluo Wang, Ziming Zhao und Hui Li. „Secure Display for FIDO Transaction Confirmation“. In CODASPY '18: Eighth ACM Conference on Data and Application Security and Privacy. New York, NY, USA: ACM, 2018. http://dx.doi.org/10.1145/3176258.3176946.

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Berichte der Organisationen zum Thema "FIDO2"

Harper, Ross J. Integration of CW / Radionucleotide Detection Systems to the Fido XT Explosives Detector. Fort Belvoir, VA: Defense Technical Information Center, Juli 2008. http://dx.doi.org/10.21236/ada499849.

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