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Odambatafwa, Maurice Ombworo. "Simulation of CPRI traffic on Optical Ethernet." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2018. http://amslaurea.unibo.it/15973/.
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Evolution of mobile networks calls for novel ways of reducing delays while improving the network capacity. All application types require a system to utilize the expanding data. In the future, the projection is that quality of service (QoS) will be a key measurement of any network. Delay and jitter present a challenge to achieving the QoS needed. This is due to the loss of packets experienced during transmission and retransmission. Hence, the thesis proposes a Hybrid switching solution to increase the efficiency of transport networks for mobile data. This is done by designing a model that reduces the number of wavelengths needed to transport Common Public Radio interface (CPRI) over Ethernet while sharing the same optical resources for conventional backhaul traffic. CPRI over Ethernet is an ideal method to aid in better exploitation of the resources. The proposed strategy minimizes the loss of packets by making use of the available gaps during the transmission. Implementing such a model requires a Guaranteed Service Traffic (GST) class, which does not allow for packet loss and is treated as high priority traffic. Additionally, GST has a fixed low delay that makes it resilient to any form of network failures. Moreover, CPRI assists in saving costs by exploiting the unused wavelength capacity left by the GST traffic. Backhaul traffic can exploit this unused capacity to make the system compact. The thesis considers two classes of service levels with possible set of services that have QoS. These are CPRI over Ethernet (CPRIoE) and traditional packet-based Backhaul traffic. CPRIoE is considered as the GST traffic while Backhaul is the Best Effort (BE) traffic. Both traffics are transported over the same links, sharing wavelength resources. The results indicate the effectiveness of combining services in managing multiple flows, thus saving resources and optimizing the network.
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Samuelson, Alfred. "Partial Reconfiguration of a CPRI Implementation on an FPGA." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-230623.
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Utilizing Partial Reconfiguration (PR) in Field Programmable Gate Arrays (FPGAs) is a digital hardware design concept that has gained in popularity and ease of implementation over the past decades. In short, it means that a limited region of the FPGA is reconfigured during run-time depending on which logic is needed at a given time. This way, the logic utilization of the FPGA can be reduced while still maintaining the same functionality in designs where certain logic blocks are not run in parallel. For example, it has previously proven to be useful in designs containing several types of hardware accelerators which are used by a Central Processing Unit (CPU). Common Public Radio Interface (CPRI) is a communication interface between components of a Radio Base Station (RBS); Radio Equipment (RE) and Radio Equipment Control (REC). The specification of the interface outlines a functional split between two different layers. In this master’s thesis, the potential benefits and challenges of applying the concept of Partial Reconfiguration to a CPRI layer 2 FPGA design are investigated. Using an Intel Arria 10 development board, a platform has been designed for evaluation of relevant parameters with focus on resource utilization, bitstream file size and reconfiguration time. The results do not show clear benefits of utilizing PR in this particular block, mainly due to the fact that not a large reduction of logic utilization is achieved compared to a reference implementation of the block where PR is not utilized. However, important insights for future work on PR implementation of similar circuits have been obtained.Partiell Rekonfiguration (PR) i Field Programmable Gate Arrays (FPGAs) är ett designkoncept för digital hårdvara vars populäritet har ökat de senaste decennierna samtidigt som implementationsverktygens stöd för metodiken har förbättrats. Sammanfattningsvis innebär det att en begränsad region av FPGAn rekonfigureras beroende på vilken logik som behövs vid en given tidpunkt, samtidigt som resten av designen körs. På detta sätt kan FPGAns logiska utilisation reduceras med bibehållen funktionalitet i designer där vissa logikblock inte körs parallellt. Det har till exempel visat sig vara användbart i designer där flera olika typer av hårdvauacceleratorer används av en central behandlingsenhet (CPU). Common Public Radio Interface (CPRI) är ett gränssnitt för kommunikation mellan komponenter i en radiobasstation. Vanligen handlar det om radioutrustning och den komponent som kontrollerar radioutrustningen. Specifikationen för CPRI påvisar en funktionell uppdelning mellan två olika lager. I detta examensarbete undersöks de potentiella fördelarna och utmaningarna med att applicera konceptet Partiell Rekonfiguration på en FPGA-design av en CPRI lager 2-krets. En plattform baserad på ett utvecklingskort för Intel Arria 10 utformas för att utvärdera relevanta parametrar med fokus på resursutnyttjande, storlek på bitströmfilerna samt rekonfigurationstid. Resultaten visar inte på klara fördelar med att använda PR för just detta block, framförallt eftersom inga stora besparingar i logikutilisation uppnåddes jämfört med en referensimplementation av samma block som ej använde sig av PR. Användbara insikter för framtida arbete på PR-implementation av liknande kretsar har dock förvärvats.
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Diallo, Thierno. "La fibre en support du Mobile Cloud." Thesis, Limoges, 2016. http://www.theses.fr/2016LIMO0122/document.
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De nos jours, la montée en débit observée dans les réseaux mobiles est une problématique. A long terme, la densification des réseaux radios mobiles s'avérera inefficace. En plus de cela cette densification entraînera une baisse de rentabilité des réseaux d'accès mobiles et augmentera la complexité au niveau de la gestion des fréquences mobile qui accroîtra inéluctablement le risque de la présence des interférences. Pour pallier ce manque de rentabilité et pour faciliter le déploiement de certaines techniques d'optimisation et d'amélioration de l'interface air comme le « Coordinated MultiPoint » (CoMP), les acteurs des télécommunications proposent une nouvelle architecture innovante désignée par les termes Mobile Cloud ou « Centralized or Cloud Radio Access Network » (C-RAN). Le C-RAN consiste à déporter l'entité de traitement des données numérisées appelée « Base Band Unit » (BBU) du site d'antenne vers un local plus sécurisé nommé « Central Oce (CO) ». L'entité de traitement radio dénommée « Remote Radio Head (RRH) »est toujours localisée sur le site d'antenne. Cette délocalisation crée un nouveau segment réseau appelé « fronthaul ». Le fronthaul est un segment réseau très gourmand en bande passante par conséquent la fibre est désignée comme le support idéal pour assurer la communication bidirectionnelle entre la RRH et la BBU. Dans notre thèse, nous avons étudié les solutions de déploiement du fronthaul. Etant donné que l'interface fronthaul utilise de grands débits pour la transmission de données numérisées, elle est soumise à un phénomène physique nommé gigue qui a tendance à dégrader les performances de transmission. Les effets et l'impact de la gigue sur l'interface fronthaul et sur l'interface air ont été aussi étudiésIn Europe, the competition between the mobile operators is so strong that the profitability of the mobile network has decreased. The cost to implement, to operate and to upgrade the mobile network is increasing while the revenues generated by the latter are not sufficient. Therefore, the operators should find the way to reduce the CAPEX and the OPEX. To keep competitive, the operators have begun to think about a novel RAN architecture. This new architecture is called Centralized or Cloud Radio Access Network. The traditional antenna site consists of the Radio Remote Head (RRH) which performs the radio processing, and the Base Band Unit (BBU) which carries out the digital processing. The principle of C-RAN consists to move the BBU from antenna site towards the local secured belonging to an operator called Central Office (CO). The move of BBU from antenna site to CO leads to the appearance of a new network segment called fronthaul. During this thesis, the different solutions to the deployment of fronthaul are studied and also the effects and the impacts of jitter on the fronthaul interface
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Melo, David António Sacadura de. "Análise e planeamento de redes de acesso C-RAN sobre ethernet." Master's thesis, Universidade de Aveiro, 2017. http://hdl.handle.net/10773/23813.
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Mestrado em Engenharia Eletrónica e TelecomunicaçõesRecentemente, com o aumento dos dispositivos móveis e do tráfego gerado por estes, surgiu a necessidade de reformular a arquitetura das redes de acesso móvel atuais. Com o intuito de alcançar este objetivo, prevê-se que seja implementado o paradigma C-RAN, que permite centralizar o processamento, promover positivamente a utilização da rede e reduzir os custos de operação e manutenção. Na primeira parte, é feito um estudo de pior caso da aplicação da Ethernet como meio de transporte do CPRI na rede fronthaul que interliga as RRHs, geograficamente distribuídas, com o nó central onde reside a BBU pool. Nesta parte, são comparadas duas redes baseadas em Ethernet: as redes EPON e as redes switched Ethernet. O estudo feito mostra que as redes switched Ethernet permitem suportar um número de RRHs maior do que as redes EPON e, para o mesmo número de RRHs, permitem alcançar maiores coberturas geográficas. Além disso, mostra-se que o uso de prioridades e de diferentes valores de tamanho de pacotes Ethernet permite ganhos adicionais de cobertura geográfica nas redes switched Ethernet. Após se concluir das vantagens da switched Ethernet, a segunda parte do trabalho realizado propõe algoritmos de planeamento de redes fronthaul baseadas nesta tecnologia. Os algoritmos são avaliados em cenários gerados aleatoriamente com dois objetivos; o primeiro é avaliar a sua eficiência e o segundo é avaliar os ganhos que se obtêm com o uso de prioridades e de tamanhos de pacotes diferentes na rede Ethernet de suporte.
Recently, with the increase of mobile devices and the traffic generated by them, the need to reformulate the architecture of the current mobile access networks has arisen. In order to achieve this goal, the C-RAN paradigm is expected to be adopted, which allows the processing centralization, positive promotion of network usage and reduction of operation and maintenance costs. In the first part, a worst case study is carried out on the use of Ethernet as a means of transporting CPRI radio signals in the fronthaul network that interconnects the geographically distributed RRHs, with the central node where the BBU pool is hosted. In this part, two Ethernet-based network technologies are compared: the EPON networks and the switched Ethernet networks. The study shows that switched Ethernet networks allow a larger number of RRHs to be supported than EPON networks and, for the same number of RRHs, it also allows a larger geographic coverage. In addition, it is shown that the use of priorities and different Ethernet packet sizes allows additional geographic coverage gains in switched Ethernet networks. After concluding the advantages of switched Ethernet, the second part of the work proposes algorithms for fronthaul network planning based on this technology. The algorithms are evaluated in randomly generated scenarios with two objectives; the first is to evaluate their efficiency and the second is to evaluate the gains that are obtained by using different priorities and packet sizes in the supporting Ethernet network.
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Tayq, Zakaria. "Intégration et supervision des liens Fronthaul dans les réseaux 5G." Thesis, Limoges, 2017. http://www.theses.fr/2017LIMO0092/document.
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Le Cloud RAN a été préconisé pour la 5G. Cependant, sa mise en place rencontre des difficultés notamment sur l'intégration du fronthaul, ce dernier généralement basé sur l’interface CPRI représente le segment situé entre la Digital Unit et la Radio Unit. Vu les contraintes de débit, de latence et de gigue sur cette interface, le multiplexage en longueur est la solution adéquate pour son transport. En revanche, les technologies radio recommandées pour la 5G augmenteront considérablement les débits CPRI, ce qui rend l’utilisation du WDM bas coût très difficile. Cette thèse traite quatre sujets principaux : L'introduction d'un canal de contrôle dans le CPRI permettrait la supervision de l'infrastructure WDM et l'accordabilité en longueurs d'onde des transceivers. L’impact de l’intégration de ce canal de contrôle dans le fronthaul est étudié dans le chapitre II. La radio analogique sur fibre peut améliorer de manière significative l'efficacité spectrale du fronthaul, permettant potentiellement le transport des interfaces 5G. Une étude approfondie sur le gain réel apporté par cette solution est rapportée dans le chapitre III. La compression du CPRI basée sur la quantification uniforme et non uniforme est également une solution pour améliorer l'efficacité spectrale du CPRI. Le chapitre IV démontre expérimentalement les taux de compression réalisables. Enfin, les nouveaux splits fonctionnels sont considérés comme une solution prometteuse pour la 5G. Deux nouvelles interfaces ont été identifiées pour les splits couche haute et couche basse. Une étude théorique et expérimentale de ces nouvelles interfaces est présentée dans le chapitre VCloud Radio Access Network (RAN) was identified as a key enabler for 5G. Its deployment is however meeting multiple challenges notably in the fronthaul integration, the latter being the segment located between the Digital Unit and the Radio Unit generally based on CPRI. Giving its bit-rate, latency and jitter constrains, Wavelength Division Multiplexing (WDM) is the most adequate solution for its transport. However, the radio technologies recommended for 5G will drastically increase the CPRI bit-rate making its transport very challenging with low-cost WDM. This thesis deals with four main topics : The introduction of a control channel in the CPRI enables offering the WDM infrastructure monitoring and the wavelength tunability in the transceivers. The study of this control channel integration in the fronthaul link is reported in the second chapter as well as an investigation on the wireless transmission of CPRI. The use of Analog Radio over Fiber (A-RoF) can significantly improve the fronthaul spectral efficiency compared to CPRI-based fronthaul enabling, potentially, the transport of 5G interfaces. A thorough investigation on the actual gain brought by this solution is stated in the third chapter. CPRI compression based on uniform and non-uniform quantization is also a solution to enhance the CPRI spectral efficiency. The fourth chapter describes this solution and experimentally shows the achievable compression rates. Finally, establishing a new functional split in the radio equipment was considered as a promising solution for 5G. Two new interfaces have been identified for high and low layer functional splits. A theoretical and experimental study of these new interfaces is reported in the fifth chapter
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Channe, Gowda Anushree. "Latency and Jitter Control in 5G Ethernet Fronthaul Network." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/17651/.
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With 5G technology, networks are expected to offer high speed with ultra-low latency among different users. Maintaining the current network architecture will lead to an unsustainable transport delay and jitters increase. Limiting the transport delay and the jitters have become a necessity for mobile network operators. The main requirement in 5G networks is the demand of limiting the transport delay. This, thesis proposes a novel mechanism to minimize packet delay and delay variation in 5G Ethernet fronthaul network. The goal is to achieve bounded delay aggregation of traffic ,suitable for application in fronthaul transport. Hybrid switching technology can be adopted to provide efficient fronthaul in 5G. Hybrid switches allows to multiplex traffics with different characteristics over the same wavelengths, thus increasing the network resource utilization. This thesis proposes a scheduling mechanism for hybrid switches to aggregate streams from the network, the Bypass traffic (BP), and the traffic from the fronthaul links, the ADD traffic, using an algorithm which looks for the time gaps in the BP stream for the insertion of the ADD traffic. The proposed strategy minimizes the delay of packets by making use of the available gaps during the transmission to limit the network latency. The size of the required time gaps, the time window, is suitably reduced by dividing the timeout time duration with number of intervals (N) with the Window reduction mechanism so that the delay variation or jitter of both aggregated streams are bounded. The results demonstrate that the aforementioned requirements are can be achieved by suitably tuning the parameters of the algorithm inputs, mainly the window reduction factor, timeout time duration and the number of intervals, resulting in values of packet delay and delay variation bounded at 10 microseconds or even lower up to 85-90percent carried load of aggregated flows. Hence, we show their suitability for delay sensitive future applications in 5G networking.
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Santos, Jorge Casal. "Geração em FPGA de sinais LTE." Master's thesis, Universidade de Aveiro, 2014. http://hdl.handle.net/10773/14577.
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Mestrado em Engenharia Eletrónica e TelecomunicaçõesO crescimento do tráfego de dados está a colocar exigências sem precedentes nas redes móveis atuais. Os avanços nas tecnologias de acesso rádio estão a acompanhar os requisitos de aumento da capacidade da rede, da qualidade do serviço e do uso mais eficiente do espetro disponível. Estes avanços têm levado ao crescimento de dispositivos cada vez mais sofisticados e, consequentemente, à qualidade das aplicações oferecidas. A contínua evolução da Radio Access Network (RAN) faz-se acompanhar por um conjunto de inovações tecnológicas que ajudam os operadores de telecomunicações a melhorar o desempenho, a cobertura e a qualidade das redes. A tecnologia LTE e, posteriormente, o LTE-Advanced foram os últimos passos dados na transformação das redes de acesso móveis em redes de banda larga móvel, naquela que é conhecida como a quarta geração móvel ou 4G. De forma a otimizar a utilização de recursos de rede e, simultaneamente, minimizar o consumo energético surge o paradigma C-RAN. Esta nova arquitetura propõe uma reorganização e simplificação das atuais arquiteturas de redes de acesso rádio, ao separar as unidades de rádio remotas (RRH) da unidade de processamento de banda base (BBU), permitindo, assim, que diversas RRHs interajam com uma BBU que passa a estar centralizada. Adicionalmente, esta arquitetura necessita de equipamentos com elevada flexibilidade e interoperabilidade como soluções baseadas em Software Defined Radio (SDR). O objetivo principal deste trabalho de dissertação é o projeto e implementação de um gerador de sinais LTE baseado em Field Programmable Gate Array (FPGA) e assente no paradigma SDR e, posteriormente, a integração de uma cadeia de transmissão rádio frequência (RF), implementada com base num front end rádio e responsável pela conversão do sinal entre o domínio digital e o analógico. Com base no sistema desenvolvido, faz-se ainda a apresentação de um demonstrador C-RAN, onde a interface entre a BBU e a RRH é feita segundo a especificação Common Public Radio Interface (CPRI), garantindo assim a total transparência entre equipamentos de diferentes fabricantes. Nesta dissertação, são ainda apresentadas as arquiteturas e os aspetos de implementação dos sistemas e são discutidos os resultados obtidos mediante a análise de medidas de qualidade em banda base e em RF.
The growth in data traffic is placing unprecedented demands on current mobile networks. Breakthroughs in radio access technologies go along with the requirements of increased network capacity and service quality, as well as with a more efficient use of the available spectrum. These breakthroughs have led to a growth of increasingly sophisticated devices and, thus, to a higher quality of the apllications provided.The continuous development of Radio Access Network (RAN) has been accompanied by a number of technological innovations that help telecom operators to improve the performance, coverage and quality of their networks. LTE technology and, later, LTE-Advanced were the latest steps in the transformation of mobile access networks into mobile broadband networks, in what is known as the fourth mobile generation or 4G. In order to optimize the use of network resources while minimizing power consumption, C-RAN paradigm emerges. This new architecture proposes a reorganization and simplification of the current architectures of radio access networks by separating the remote radio units (RRH) from the baseband processing unit (BBU), thus enabling that multiple RRHs interact with one BBU which is now centralized. Additionally, equipment with high flexibility and interoperability is required in this architecture, such as Software Defined Radio (SDR) solutions. The main goal of this study is the design and implementation of an LTE signal generator based on Field Programmable Gate Array (FPGA) and SDR paradigm. Subsequently, it also aims to integrate a radio frequency (RF) transmission chain which is implemented on the basis of a radio front-end and is responsible for signal conversion between the digital and analog domain. Based on the developed system, a C-RAN demonstrator is also presented where the interface between BBU and RRH is according to the Common Public Radio Interface (CPRI) specification, thus ensuring full interoperability between different equipment manufacturers. This study also presents the systems’ architecture and implementation aspects and the results achieved are discussed by analyzing base band and RF measurements.
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Gallais, Arnaud. "CPPI Structures on Funds Derivatives." Thesis, KTH, Matematisk statistik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-102792.
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Abstract With the ever-increasing complexity of financial markets and financial products, many investors now choose to benefit from a manager’s expertise by investing in a fund. This fueled a rapid growth of the fund industry over the past decades, and the recent emergence of complex derivatives products written on underlying funds. The diversity (hedge funds, mutual funds, funds of funds, managed accounts…) and the particularities (liquidity, specific risks) of funds call for adapted models and suited risk management. This thesis aims at understanding the issues and difficulties met when dealing with such products. In particular, we will deal in a great extent with CPPI (Constant Proportion Portfolio Insurance) structures written on funds, which combine the specificities of funds with particularities of such structures. Correctly assessing the corresponding market risks is a challenging issue, and is the subject of many investigations.
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Yassa, Laura Melany. "Electrocardiographic Findings During Standard Hands Only CPR and Hands Only CPR Plus Pedal CPR in Senior Rescuers." DigitalCommons@CalPoly, 2019. https://digitalcommons.calpoly.edu/theses/2106.
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The standard first aid for a heart attack resulting in cardiopulmonary arrest is effective cardiopulmonary resuscitation (CPR). Chest compressions are most commonly performed on a flat surface with the rescuer kneeling next to the victim with one hand on top of the other on the sternum and elbows straight. This technique of being on the ground may be challenging for those without the mobility and strength to get up and down from the ground. In 2005, the American Heart Association (AHA) Guidelines listed “pedal”, or heel, compression as an acceptable alternative to standard chest compressions (Trenkamp & Perez, 2015). That same year, the recommended depth of a compression increased from 3.8 cm to 5.0 cm (Trenkamp & Perez, 2015). To attain such a depth, extra force and strength arerequired. The heel method may be especially reasonable for those rescuers who cannot attain the floor and those who do not have the cardiovascular or muscular strength to perform traditional chest compressions.
The purpose of this study was to evaluate the effects of performance of hands only (HO) versus the combination (CO) of hands only plus pedal CPR on the electrocardiogram, including heart rate and heart rhythm.
The subjects utilized in this investigation were six men and nine women between 56 and 71 years of age from San Luis Obispo County in California. Subjects underwent two trials with at least a 15 hour rest period in between but no more than one week. Subjects were randomly assigned to either the Combination (CO) trial or the Hands Only (HO) trial. When they came back for their second trial, they did the trial that they did not do the first time.
On average, participants were able to sustain the combination of HO plus pedal CPR longer (9.47 minutes) than they were able to perform standard HO CPR (9.02 minutes) but this difference was not statistically significant (p=0.16). Mean maximum heart rate was 133 ± 23.7 bpm during the CO trial and 125.4 ± 21.9 bpm during the HO trial (p=0.12). Mean percentage of the HR reserve was 75.1% during the CO trial and 61.1% during the HO trial (p=0.09). Mean RPE was not significantly different between CO and HO trials (p=0.2124), nor between genders (p=0.42090). However, for both trials combined the mean RPE was significantly greater at 5 minutes of CPR (4.45 ± 0.53) than at 2 minutes of CPR (3.38 ± 0.31), (p
It may take time for individuals to accept pedal CPR as a viable resuscitation method. With the majority of sudden cardiac arrests occurring in the home among older adults in society, it is important to recognize that pedal CPR is an acceptable method and that a rescuer may have this choice if they either need a break from standard CPR or if they can not attain the ground.
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Riscado, Diogo José Castilho. "Demonstrador C-RAN para redes móveis de próxima geração." Master's thesis, Universidade de Aveiro, 2014. http://hdl.handle.net/10773/13615.
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Mestrado em Engenharia Eletrónica e TelecomunicaçõesNas últimas décadas, o caminho da evolução nas redes de telecomunicações tem vindo a ser percorrido com vista a proporcionar melhor serviço móvel ao nível de capacidade e disponibilidade aos utilizadores. Mais recentemente, com a introdução do 3G e 4G, tem-se assistido a novas formas de aceder a informação impulsionadas pela proliferação dos dispositivos m oveis ligados à rede. Este fenómeno tem levado a um aumento exponencial do consumo de dados e, consequentemente, ao aumento dos custos de operação e manutenção das infraestruturas de acesso por parte dos operadores de telecomunicações. No âmbito desta evolução, surge o paradigma C-RAN, que propõe uma reformulação das atuais arquiteturas de redes de acesso r adio. Esta reorganização passa pela simplificação das atuais base stations em aparelhos de menor complexidade, as Remote Radio Heads (RRH), com a centralização das funções da camada física em Base Band Unit (BBU). A nova arquitetura proposta requer equipamentos com elevada exibilidade e interoperabilidade, tais como soluções baseadas em Software De ned Radio (SDR). Nesta dissertação de Mestrado é apresentado um demonstrador para C-RAN com foco na componente digital da RRH, desenvolvido em plataforma reconfigurável, sob o paradigma SDR. A interface com a BBU é implementada de acordo com a especifcação da interface Comon Public Radio Interface (CPRI), que tem como objetivo padronizar as interfaces em base stations, garantindo a interoperabilidade entre equipamentos de diferentes fabricantes. O demonstrador consiste em dois kits de desenvolvimento baseados em Field Programable Gate Arrays (FPGAs), com ligação ótica entre si, sendo que um simular a BBU e o outro integra uma prova-de-conceito da RRH. Nesta última, o andar de R adio Frequência (RF) foi implementado com um front end analógico encarregue de efectuar a conversação de sinal entre os domínios analógico e digital. Deste modo foi possível, em laboratório, testar e validar a transferência de dados de utilizador pela ligação ótica, analisar a qualidade da transmissão em RF, assim como a medição de atrasos do sistema.
In the last decade, the path of evolution in telecommunications networks has to be traversed in order to provide best mobile service in terms of capacity and availability to users. More recently, with the introduction of 3G and 4G, we've seen new forms of access to information pushed by the proliferation of mobile devices connected to the network. This phenomenon has led to an exponential increase in data consumption and, consequently, the increased expense of operation and maintenance of access infrastructure by operators of telecommunications. As part of this evolution, the CRAN paradigm, proposes a redesign of the current radio access network architecture. This reorgnization involves the simpli cation of existing base stations in less complex devices as the Remote Radio Heads (RRH) as well as the centralization of the functions of the physical layer, on the Base Band Unit (BBU). The proposed architecture requires new equipment with high exibility and interoperability, such as Software De ned Radio (SDR) solutions. In this Master's thesis, a demonstrator for C-RAN, focusing on digital component of RRH and based on a recon gurable platform under the SDR paradigm is presented. The interface with the BBU is implemented according to the speci cation of Comon Public Radio Interface (CPRI) interface, which aims to standardize interfaces in base stations, guaranteed interoperability between equipment from di erent manufacturers. The demonstrator consists on two development kits based on Field Programmable Gate Array (FPGA), with optical connection between them, one of which will simulate the BBU and the other contains a proof-of-concept for a RRH. In this last one, the Radio Frequency (RF) stage was implemented with an analog front end to make the signal conversion between analog and digital domains. Thus, it was possible, in the laboratory, to test and validate the transfer of user data through the optical link as well as analyse the RF transmission quality, and measure the system's delays.
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Donnelly, Peter D. "Studies in CPR training." Thesis, University of Edinburgh, 1999. http://hdl.handle.net/1842/22157.
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This dissertation describes the development of a robust test of manikin cardiopulmonary resuscitation (CPR) performance "The Cardiff Test". The test consists of two parts. Firstly the Cardiff test of response and evaluation (CARE) assesses all of those actions important to basic life support up to that point at which chest compression and mouth ventilation begin. This includes the careful approach, the opening of the airway and casualty assessment. Secondly the video and recording Anne printout (VIDRAP) evaluates the key psychomotor skills of chest compression and mouth to mouth ventilation. In each part of the test the development of marking schedules and making guidance is key in reducing inter and intra observer error. The advantageous and novel element of combining video recording with manikin printout is fully described. The dissertation then describes how "The Cardiff Test" was used to test the skills of 280 trainees from 9 UK cities six months after they had been trained as part of the BBC 999 road show training initiative. The innovative "cold call" methodology sought to replicate some of the immediacy and stress of a true cardiac arrest in the home. When faced unforewarned with a scenario of full cardiopulmonary arrest 6 months after training only 12% of trainees could perform effective CPR and of these 5% performed at least one element of CPR in a potentially injurious way. The majority of trainees (89%) failed to open the airway at the correct time and failed to say spontaneously that they would call an ambulance (90%). The possible reasons for, and implications of, these results are discussed as are the lessons learned from using television as a means of trainee recruitment when compared to other non-targeted means, namely: a community word of mouth approach or an approached based on editorial coverage in a local newspaper. The relevant literature is reviewed in detail and reprints of peer reviewed publications resulting from the development of the two part test and the BBC 999 evaluation are included in the appendices.
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Shimamoto, Tomonari. "Dispatcher instruction of chest compression-only CPR increases actual provision of bystander CPR." Kyoto University, 2018. http://hdl.handle.net/2433/232308.
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Marks, Steven. "Training Frequency and Anxiety: Do CPR Manikins Lend to Delivering High-Quality CPR?" ScholarWorks, 2019. https://scholarworks.waldenu.edu/dissertations/7697.
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Cardiopulmonary resuscitation (CPR) manikins are an educational technology tool employed to train nurses to perform high-quality CPR during real-life cardiac arrest events. However, a gap exists between CPR skills learned in training and those used in real life. The purpose of this quantitative study was to examine how CPR feedback and anxiety in registered nurses affect CPR performance on a manikin. Distributed practice and attentional control theory served as the foundations for this study. The research questions addressed the influence of demographic factors, real-time CPR feedback, and simulated hospital noises on CPR performance using CPR manikins. The study included a randomized longitudinal experimental design. Data were collected from 120 nurses via a demographic questionnaire, the Cognitive and Somatic Anxiety Questionnaire, and CPR compression performance feedback via a Zoll R Series defibrillator. Data analysis involved a repeated measures ANOVA or a regression analysis. Findings indicated that participants’ age predicted CPR performance. Receiving real-time CPR feedback led to a statistically significant improvement in performance, and the introduction of hospital noises did not predict CPR performance. Findings may be used to enhance individual performance of CPR, which may benefit society through improved patient care during cardiac arrest.
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Quispe, Munarriz Katia. "“FACTORES PREDICTORES DE COLEDOCOLITIASIS EN PACIENTES SOMETIDOS A COLANGIOGRAFÍA RETRÓGRADA ENDOSCÓPICA EN EL HOSPITAL LUIS SAENZ-PNP”." Bachelor's thesis, Universidad Ricardo Palma, 2016. http://cybertesis.urp.edu.pe/handle/urp/744.
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OBJETIVOS: Determinar los factores predictores de coledocolitiasis. MATERIAL Y METODOS: Se realizó un estudio descriptivo, correlacional en el Hospital Luis N. Saenz – PNP, durante el periodo de Julio del 2014 a Junio del 2015. Se incluyeron a pacientes sometidos a CPRE por sospecha de coledocolitiasis. Se tomaron parámetros: sexo, edad, clínica del paciente, exámenes de laboratorio y exámenes de imagen. En el análisis estadístico, se tomaron medidas de frecuencia y porcentajes, posteriormente se procedió a realizar un estudio bivariado de asociación con p<0,05 y finalmente calcular la sensibilidad, especificidad, VPP y VPN para cada una de las pruebas diagnósticas.
RESULTADOS: Se obtuvieron datos de 45 historias clínicas de pacientes con indicación de CPRE por sospecha de coledocolitiasis, 27 mujeres (60%) y 18 hombres (40%), con una relación hombre/mujer de 1/1,5, la mediana de edad fue de 66 años. Se hallaron 33 pacientes (73,3%) con coledocolitiasis, de los cuales 23 (69,7%) no eran colecistectomizados. En el análisis univariado las alteraciones más frecuentes fueron dolorabilidad abdominal en el 100% de pacientes, seguido de coledocolitiasis por CRMN en 40 pacientes (88,9%) y bilirrubina directa alterada en 39 pacientes (88,7%). Además el estudio por ecografía reveló la coexistencia de Colelitiasis en el 71,1%. En el análisis bivariado con niveles de p<0,05 la Fosfatasa alcalina y la Gammaglutamiltranspeptidasa, obtuvieron un OR de 4,6 y 7,8 respectivamente. Dentro de las complicaciones la Pancreatitis aguda se encontró en un 18,2%. CONCLUSIONES: La Fosfatasa alcalina y la Gammaglutamiltranspeptidasa demostraron ser pruebas de laboratorio más certeras para predecir coledocolitiasis.
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Kihlberg, Emelie, and Nadine Rosenkvist. "Vietnamese nursing students' knowledge in Cardiopulmonary resuscitation (CPR) and perceptions of training in CPR." Thesis, Uppsala universitet, Institutionen för folkhälso- och vårdvetenskap, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-376662.
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Background Cardiopulmonary resuscitation (CPR) increases significantly the chance of survival in cases of a cardiac arrest. The ability to respond quickly and effectively to a cardiac arrest rests on nurses being competent, prepared and up-to-date. Nursing student’s knowledge in CPR and perceptions of their own training are crucial for the pursuit of the education of professional nurses. Aim Investigate the prerequisites for a good care of patients in need of CPR by assessing Vietnamese nursing students' knowledge in CPR as well as their perceptions on their education in CPR. Method A quantitative, cross sectional-study was conducted. A modified version of a questionnaire developed by the Swedish council of CPR was used. Nursing students at University of Medicine and Pharmacy in Ho Chi Minh City were asked to participate. The gathered data were analyzed with descriptive statistics, t-test and chi2 -test. Result The participants answered right on 41 % of the questions (571/1404). The mean-score was 5.25 and the score ranged from 0 to 9 out of 13 points on the questionnaire. Participants answered correctly on most questions regarding basic CPR and were foremost wrong about questions regarding defibrillation. There was no association between a high result on the questionnaire and students rating a high grading on preparedness and/or satisfaction. No significant difference could be found based on gender. Conclusion The knowledge in CPR, based on this survey, is generally low. One plausible explanation could be that the questionnaire did not fit the education of the participants.Bakgrund Hjärt- och lungräddning (HLR) ökar avsevärt chanserna att överleva vid ett hjärtstopp. Att kunna reagera snabbt och effektivt på hjärtstillestånd kräver att sjuksköterskor är kompetenta och förberedda. Sjuksköterskestudenters kunskaper i HLR och deras uppfattningar om sin utbildning är avgörande för den fortsatta utbildningen av professionella sjuksköterskor. Syfte Undersöka förutsättningarna för en patientsäker vård inom HLR, genom att kartlägga vietnamesiska sjuksköterskestudenters kunskaper i HLR samt att undersöka deras uppfattning om sin utbildning i HLR. Metod En kvantitativ, tvärsnittsstudie genomfördes. En modifierad version av ett frågeformulär utvecklat av Svenska rådet för hjärt- och lungräddning (HLR-rådet) användes. Sjuksköterskestudenter i en klass från University of Medicine and Pharmacy, i Ho Chi Minh City blev ombedda att delta. Den insamlade informationen analyserades med beskrivande statistik, t-test och chi2-test. Resultat Deltagarna svarade rätt på 41% av frågorna (571/1404). Det totala medelvärdet var 5.25 och poängen skilde sig från 0 till 9 av 13 poäng på frågeformuläret. Deltagarna svarade korrekt på de flesta frågor angående grundläggande HLR och svarade främst fel på frågor angående defibrillering. Det fanns inget samband mellan ett högt resultat på frågeformuläret och elever som ansåg sig vara förberedda och/eller nöjda med sin utbildning. Ingen signifikant skillnad i resultat kunde hittas baserat på kön. Slutsats Kunskaperna i HLR, baserat på den genomförda studien, är generellt låga. När det kommer till vissa frågor kan en orsak vara att frågeformuläret inte var anpassat efter deltagarnas utbildning.
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Horsky, Roman [Verfasser]. "Barrier Option Pricing and CPPI-Optimization / Roman Horsky." München : Verlag Dr. Hut, 2012. http://d-nb.info/102878340X/34.
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Uhlmann, Roger. "Portfolio insurance CPPI im Vergleich zu anderen Strategien." Bern Stuttgart Wien Haupt, 2007. http://d-nb.info/987538179/04.
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Uhlmann, Roger. "Portfolio insurance - CPPI im Vergleich zu anderen Strategien /." Bern [u.a.] : Haupt, 2008. http://www.gbv.de/dms/zbw/558989977.pdf.
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Joyce, Michael Gordon. "Structural studies of cytochrome P450 BM3 and CprK." Thesis, University of Leicester, 2005. http://hdl.handle.net/2381/29702.
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This work presents the crystal structure determination of the transcriptional regulator CprK and of individual domains of the multidomain cytochrome P450-BM3. The crystal structure of the A264E mutant heme domain was determined with and without substrate present. Surprisingly, the structures reveal the protein to exhibit a substrate bound conformation regardless of the presence of substrate. This has provided further evidence that substrate binding leads to a dramatic shift in the equilibrium of conformational states available to the protein. In addition, the crystal structure of the C773A mutant flavin binding domain has been determined both in presence and absence of NADP+. Together with the already available structures of the other domains, this now allows both modelling and further solution studies of the full length cytochrome P450-BM3 structure.;Dehalogenans sp. are capable of using a range of chlorophenolic compounds as terminal electron acceptors in a respiratory metabolism known as halorespiration. This process is under transcriptional control by CprK, a member of the CRP-FNR family of transcriptional regulators. The crystal structure of D. hafniense CprK in complex with o-chlorophenolacetic acid (OCPA) reveals tightly bound effector molecules. Binding of OCPA is analysed through both mutagenesis and fluorescence quenching binding studies. The results have led to the hypothesis that CprK uses the bound phenolic compound pKa as an additional mechanism to sense the presence of the chloride atom. The structure presents a structural framework for further studies of the mechanism of this family of transcriptional regulators and of CprK homologues in particular.
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McLaren, Sholto Riley Martin. "CPI induced discotic liquid crystalline systems." Thesis, University of Leeds, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.515549.
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Canales, Francisco. "History of Cardiopulmonary Resuscitation." The University of Arizona, 2018. http://hdl.handle.net/10150/626860.
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Gustafsson, Jonas, and Peter Tram. "Constant proportion portfolio insurance - en undersökning av två CPPI-strategier." Thesis, Uppsala University, Department of Economics, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-5955.
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Monte, Josà Cleyton Vasconcelos. "Interfaces da corrupÃÃo polÃtica no Brasil: a CPMI dos correios." Universidade Federal do CearÃ, 2012. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=8212.
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CoordenaÃÃo de AperfeiÃoamento de Pessoal de NÃvel SuperiorA pesquisa tem como objetivo compreender o fenÃmeno da corrupÃÃo polÃtica no Brasil. Inicialmente, traÃo os elementos que caracterizam essas prÃticas, discutindo as causas e consequÃncias do comportamento corrupto para a democracia, tomando como referÃncia as anÃlises internacionais e os principais estudos brasileiros sobre o tema. Em seguida, analiso o papel das comissÃes parlamentares de inquÃrito (CPIs), ressaltando seus maiores desafios e crÃticas, os discursos sobre corrupÃÃo na arena parlamentar e a relaÃÃo com o campo jornalÃstico. Partindo de matÃrias produzidas pela imprensa e, principalmente, do RelatÃrio Final elaborado pela CPMI dos Correios, que investigou nos anos de 2005 e 2006 o famoso escÃndalo do âmensalÃoâ, elaboro uma anÃlise sobre a relaÃÃo entre o sistema polÃtico brasileiro e as prÃticas de corrupÃÃo, destacando os principais pontos de discussÃo no perÃodo do referido escÃndalo: a questÃo do financiamento de campanha e a complexa relaÃÃo entre partidos, empresas privadas e estatais, tratados a partir do âvaleriodutoâ e o debate sobre a formaÃÃo e manutenÃÃo das coalizÃes parlamentares, abordado atravÃs do âmensalÃoâ. Na conclusÃo, chamo atenÃÃo para algumas propostas de reforma polÃtica, trazidas à tona no momento dos trabalhos de investigaÃÃo parlamentar e a necessidade de participaÃÃo por parte da sociedade civil, pensados como mecanismos para combater a corrupÃÃo.
The research aims to understand the phenomenon of political corruption in Brazil. Initially, I trace elements that characterize these practices, discussing the causes and implications of corrupt behavior to democracy, by reference to the international analysis and the main Brazilian studies on this topic. Next, we analyze the role of parliamentary committees of inquiry (PCI), highlighting its major challenges and critical discourse on corruption in the parliamentary arena and the relationship with the journalistic field. Based on material produced by the press and especially the Final Report prepared by the JPCI of the Post Office, which in 2005 and 2006 investigated famous scandal of the "monthly allowance", an elaborate analysis of the relationship between the Brazilian political system and corrupt practices highlighting the main points of discussion during the period of this scandal: the issue of campaign finance and the complex relationship between political parties, private and state companies, treated from the "valerioduct" and the debate on the formation and maintenance of parliamentary coalitions, approached through the "monthly allowance". In conclusion, it just draws attentions to some proposals for political reform, brought to the fore at the time of research and the need for parliamentary participation by civil society, conceived as mechanisms to combat corruption.
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MONTE, José Cleyton Vasconcelos. "Interfaces da corrupção política no Brasil: a CPMI dos correios." http://www.teses.ufc.br, 2012. http://www.repositorio.ufc.br/handle/riufc/4513.
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MONTE, José Cleyton Vasconcelos. Interfaces da corrupção política no Brasil: a CPMI dos correios. 2012. 119f. Dissertação (Mestrado em Sociologia) – Universidade Federal do Ceará, Departamento de Ciências Sociais, Programa de Pós-Graduação em Sociologia, Fortaleza-CE, 2012.Submitted by Maria Josineide Góis (josineide@ufc.br) on 2012-07-31T12:16:37Z No. of bitstreams: 1 2012_Dis_JCVMonte.pdf: 1078237 bytes, checksum: 8ab49b48e37c939e47119b7ec8ce292d (MD5)
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The research aims to understand the phenomenon of political corruption in Brazil. Initially, I trace elements that characterize these practices, discussing the causes and implications of corrupt behavior to democracy, by reference to the international analysis and the main Brazilian studies on this topic. Next, we analyze the role of parliamentary committees of inquiry (PCI), highlighting its major challenges and critical discourse on corruption in the parliamentary arena and the relationship with the journalistic field. Based on material produced by the press and especially the Final Report prepared by the JPCI of the Post Office, which in 2005 and 2006 investigated famous scandal of the "monthly allowance", an elaborate analysis of the relationship between the Brazilian political system and corrupt practices highlighting the main points of discussion during the period of this scandal: the issue of campaign finance and the complex relationship between political parties, private and state companies, treated from the "valerioduct" and the debate on the formation and maintenance of parliamentary coalitions, approached through the "monthly allowance". In conclusion, it just draws attentions to some proposals for political reform, brought to the fore at the time of research and the need for parliamentary participation by civil society, conceived as mechanisms to combat corruption.
A pesquisa tem como objetivo compreender o fenômeno da corrupção política no Brasil. Inicialmente, traço os elementos que caracterizam essas práticas, discutindo as causas e consequências do comportamento corrupto para a democracia, tomando como referência as análises internacionais e os principais estudos brasileiros sobre o tema. Em seguida, analiso o papel das comissões parlamentares de inquérito (CPIs), ressaltando seus maiores desafios e críticas, os discursos sobre corrupção na arena parlamentar e a relação com o campo jornalístico. Partindo de matérias produzidas pela imprensa e, principalmente, do Relatório Final elaborado pela CPMI dos Correios, que investigou nos anos de 2005 e 2006 o famoso escândalo do “mensalão”, elaboro uma análise sobre a relação entre o sistema político brasileiro e as práticas de corrupção, destacando os principais pontos de discussão no período do referido escândalo: a questão do financiamento de campanha e a complexa relação entre partidos, empresas privadas e estatais, tratados a partir do “valerioduto” e o debate sobre a formação e manutenção das coalizões parlamentares, abordado através do “mensalão”. Na conclusão, chamo atenção para algumas propostas de reforma política, trazidas à tona no momento dos trabalhos de investigação parlamentar e a necessidade de participação por parte da sociedade civil, pensados como mecanismos para combater a corrupção.
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Kemp, Laura. "Functional studies of CprK : a transcriptional regulator of organohalide respiration." Thesis, University of Manchester, 2014. https://www.research.manchester.ac.uk/portal/en/theses/functional-studies-of-cprk-a-transcriptional-regulator-of-organohalide-respiration(d1f3ecd2-78b2-4a91-b4a0-98761c487a11).html.
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Microbial respiration can be highly diverse and adaptable, with many bacteria able to respond to changes in their environment promptly and efficiently. The regulation of respiratory enzymes by highly responsive and precise transcriptional regulators confers distinct advantage for survival in sometimes harsh and extreme conditions. The organohalide-respiring bacterium Desulfitobacterium hafniense DCB-2 is able to utilise a wide range of electron acceptors and respiratory processes through tight regulation of respiratory machinery. An example of this tight regulation of respiratory machinery can been seen by biochemical analysis of the CRP-FNR-type transcriptional regulator family CprK, of which five are present in the strain. CprK1 is able to sense the presence of the physiological ligand, 3-chloro-4-hydroxyphenylacetic acid (CHPA), of reductive dehalogenase CprA1 with nM affinity. In this work we demonstrate that CprK1 is able to distinguish between the chlorinated CprA1 substrate CHPA and the non-chlorinated product 4-hydroxyphenylacetic acid (HPA) by ‘pKa interrogation’ of the 4-hydroxy moiety and by the atomic radius of the ortho-moiety. Through the use of in vitro biophysical and in vivo transcriptional response assays, we show that CprK1 is able to sense a number of halogenated phenols, including phenylacetic acids and nitrophenols. We also demonstrate that a 4-hydroxyl group is essential for CprK1 activation. In Chapter 4, an attempt to modify the effector sensitivity of CprK1 is performed by site-specific and random mutagenesis, and mutant selection assays are developed. We show that CprK1 is highly resistant to effector specificity modifications, with seemingly minor or conservative amino acid changes removing CprK1’s ability to initiate transcription. In Chapter 5, the CprK1 paralogue, CprK4 from D. hafniense DCB-2 is characterised by in vitro biophysical and in vivo transcriptional response assays in order to assess its potential as a biosensor. We show that CprK4 is able to bind cis-regulatory DNA elements dehaloboxes 7 and 10 in the absence of effector by Surface Plasmon Resonance (SPR) protein array; however, we were unable to identify its effectors reliably. Due to the unknown nature of CprK4’s effector, it is still unclear whether CprK4 could be a valuable biosensor.
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McClintock, Damian Gearld. "The Effectiveness of Child Parent Relationship Therapy (CPRT) for Fathers." Thesis, University of North Texas, 2019. https://digital.library.unt.edu/ark:/67531/metadc1609171/.
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High levels of quality father involvement in childhood are associated with children's socio-emotional, cognitive, and behavioral wellbeing. However, fathers can experience difficulty in building positive relationships with their kids due to work-life balance, lack of relational experience, and other life stressors. The purpose of this study was to assess the effectiveness of child-parent relationship therapy (CPRT) on fathers' parental empathy, parental stress, and child behavior problems. Though an abundance of literature exists to support the efficacy of CPRT, this was the first study to include a randomized controlled design with an all-male sample. This was also the first CPRT study to include both English and Spanish speaking fathers with intervention offered in both languages. Participants were 30 fathers (22 English, 8 Spanish; 53% Latino, 40% Caucasian, 7% Asian) with children between the ages of 3 and 10 (60% male, 40% female; 57% Latino/a, 37% Caucasian, 6% Asian). Fathers were randomly assigned to the experimental group (CPRT) (n = 14) or waitlist control group (n = 16). Results from 2 (Group) by 2 (Time) repeated measures ANOVAs did not yield statistically significant interaction effects on the dependent variables. However, results indicated a statistically significant main effect for time on each dependent variable with large effect sizes. Results of the paired samples t-test post hoc analyses indicated a statistically significant change over time for the experimental (CPRT) group and a non-statistically significant change over time for the control group on all dependent variables. Findings of this study support previous studies on the effectiveness of CPRT, but also indicate a need for future research to more accurately determine the effectiveness of CPRT for fathers compared to a waitlist control group.
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Nord, Anette. "Bystander CPR : New aspects of CPR training among students and the importance of bystander education level on survival." Doctoral thesis, Linköpings universitet, Avdelningen för kardiovaskulär medicin, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-142460.
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Background: It has been proved that bystander cardiopulmonary resuscitation (CPR) saves lives; however, which training method in CPR is most instructive and whether survival is affected by the training level of the bystander have not yet been fully described. Aim: To identify the factors that may affect 7th grade students’ acquisition of CPR skills during CPR training and their willingness to act, and to describe 30-day survival from outof- hospital cardiac arrest (OHCA) after bystander CPR and the actions performed by laymen versus off-duty medically educated personnel. Methods: Studies I–III investigate a CPR training intervention given to students in 7th grade during 2013–2014. The classes were randomized to the main intervention: the mobile phone application (app) or DVD-based training. Some of the classes were randomized to one or several additional interventions: a practical test with feedback, reflection, a web course, a visit from elite athletes and automated external defibrillator (AED) training. The students’ practical skills, willingness to act and knowledge of stroke symptoms, symptoms of acute myocardial infarction (AMI) and lifestyle factors were assessed directly after training and at 6 months using the Laerdal PC SkillReporting system (and entered into a modified version of the Cardiff test scoring sheet) and a questionnaire. The Cardiff test resulted in a total score of 12–48 points, and the questionnaire resulted in a total score of 0–7 points for stroke symptoms, 0–9 points for symptoms of AMI and 0– 6 points on lifestyle factors. Study IV is based on retrospective data from the national quality register, the Swedish registry of cardiopulmonary resuscitation, 2010-2014. Results: A total of 1339 students were included in the CPR training intervention. The DVD-based group was superior to the app-based group in CPR skills, with a total score of 35 (SD 4.o) vs 33 (SD 4.2) points directly after training (p<0.001) and 33 (SD 4.0) vs 31 (SD 4.2) points at six months (p<0.001). Of the additional interventions, the practical test with feedback had the greatest influence regarding practical skills: at six months the intervention group scored 32 (SD 3.9) points and the control group (CPR only) scored 30 (SD 4.0) points (p<0.001). Reflection, the web course, visits from elite athletes and AED training did not further increase the students’ acquisition of practical CPR skills. The students who completed the web course Help-Brain-Heart received a higher total score for theoretical knowledge in comparison with the control group, directly after training: stroke 3.8 (SD 1.8) vs 2.7 (SD 2.0) points (p<0.001); AMI 4.0 (SD 2.0) vs 2.5 (SD 2.0) points (p<0.001); lifestyle factors 5.4 (SD 1.2) vs 4.5 (SD 2.0) points p<0.001. Most of the students (77% at 6 months), regardless of the intervention applied, expressed that they would perform both chest compressions and ventilations in a cardiac arrest (CA) situation involving a relative. If a stranger had CA, a significantly lower proportion of students (32%; p<0.001) would perform both compressions and ventilations. In this case, however, many would perform compressions only. In most cases of bystander-witnessed OHCA, CPR was performed by laymen. Off-duty health care personnel bystanders initiated CPR within 1 minute vs 2 minutes for laymen (p<0.0001). Thirty-day survival was 14.7% among patients who received CPR from laymen and 17.2% (p=0.02) among patients who received bystander CPR from off-duty health care personnel. Conclusions: The DVD-based method was superior to the app-based method in terms of teaching practical CPR skills to 7th grade students. Of the additional interventions, a practical test with feedback was the most efficient intervention to increase learning outcome. The additional interventions, reflection, web course, visit from elite athletes and AED did not increase CPR skills further. However, the web course Help-Brain-Heart improved the students’ acquisition of theoretical knowledge regarding stroke, AMI and lifestyle factors. For OHCA, off-duty health care personnel bystanders initiated CPR earlier and 30-day survival was higher compared with laymen bystanders.
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Cornett, Nicholas A. "Filial Therapy and the Family: Examining the Impact of Child Parent Relationship Therapy (Cprt) on Family Functioning." Thesis, University of North Texas, 2012. https://digital.library.unt.edu/ark:/67531/metadc115058/.
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Research has indicated that filial therapy, an approach in which parents conduct play sessions with their young children, has strong effects on the participating parents and children. As a result, some have speculated that filial therapy improves the family system; however, minimal research exists to support this claim. Using a single-case, time-series design, I examined the impact of child parent relationship therapy (CPRT), a filial therapy approach, on the functioning of 8 diverse families (two-parent, biological children = 4; two-parent, adopted children = 3; single-parent, biological children = 1). 15 parents and 17 children (male = 15, female = 17) participated in the study. All but 1 parent was Caucasian. The children were more ethnically diverse (Caucasian = 5, Hispanic/Caucasian = 5, Hispanic = 3, Asian = 2). Parents’ ages ranged from 29 to 49 and children’s from 2 to 13. Results from simulation modeling analyses (SMA) indicated that 6 of 7 families experienced a statistically significant improvement in their targeted areas of family functioning, and the average effect size was moderate. Results from self-reported measures indicated that 7 families experienced notable improvements in family satisfaction, 4 in cohesion, 3 in communication, and 1 in flexibility. Data from an observational measure rated by independent assessors also indicated improvements pre- to post-intervention: 5 families in flexibility, 4 families in cohesion, and 4 families in communication. All families reported improved functioning in post-intervention interviews. The results support that the benefits of filial therapy may indeed extend to the family system.
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Segura, Mejía María de Fátima, and Cerón José Amado Vázquez. "“Uso de Midazolam y Fentanilo requerido para obtener sedoanalgesia adecuada en la realización de colangiopancreatografía retrógrada endoscópica en pacientes del Centro Médico Lic. Adolfo López Mateos del 07 de marzo del 2012 al 07 de septiembre del 2012.”." Tesis de Licenciatura, Medicina-Quimica, 2013. http://ri.uaemex.mx/handle/123456789/14220.
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OBJETIVO: Determinar si con la dosis de Midazolam 20 mcg/kg de peso ideal y
Fentanilo 2 mcg/kg de peso real, se logra sedación y analgesia adecuada que
permita la realización de Colangiopancreatografía retrógrada endoscópica con un
mínimo de eventos adversos asociados a la sedación.
DISEÑO: Es un ensayo clínico controlado, no aleatorizado, ni segado.
MATERIAL Y MÉTODO: Se estudiarón 50 pacientes de género indistinto, edad
entre 18 y 65 años, con valoración preanestésica ASA I o II, a quien se realizó
colangiopancreatografía retrógrada endoscópica, en el Centro Médico Lic. Adolfo
López Mateos, del 07 de marzo del 2012 al 07 de septiembre del 2012. Se
administró dosis de sedoanalgesia con midazolam 20 mcg/kg de peso ideal y
fentanilo 2 mcg/kg de peso real, se evaluó el grado de sedación obtenido con la
escala de Ramsay y el grado de analgesia con la escala de EVA. También se
obtuvo la dosis de medicamentos, grado de sedación y analgesia requerida para
la CPRE. Así como la existencia de eventos adversos con las dosis utilizadas.
RESULTADOS: La dosis de Midazolam 20 mcg/kg de peso ideal y Fentanilo 2
mcg/kg de peso real logro sedación y analgesia adecuada que permitió la
realización de CPRE en el 26 % de pacientes. La dosis de midazolam en rango de
20 a 30 mcg/kg y fentanilo 2-3 mcg/kg de peso real logro la sedación suficiente
(Ramsay 2, 3, 4,) que permitió la realización de CPRE en el 96-98% de los
pacientes. La dosis de fentanilo en rango de 2 a 3 mcg/kg logro analgesia (EVA 0
– EVA 1) que permitió la realización de CPRE en el 96 % de los pacientes. No se
encontraron complicaciones estadísticamente significativas asociadas a las dosis
de midazolam o fentanilo empleadas en el estudio.
CONCLUSIONES Y SUGERENCIAS: Se sugiere implementar la dosis sugerida
en el estudio: midazolam 20 mcg/kg de peso ideal y fentanilo 2 mcg/kg de peso
real en la realización de CPRE con una duración esperada menor a 45 minutos.
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Mulheron, Rachael. "Class actions, the CPR and commencement criteria." Thesis, University of Oxford, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.251501.
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Zemlickova, Eva. "CPI-17 and centaurin-α₁ signalling complexes." Thesis, University of Edinburgh, 2002. http://hdl.handle.net/1842/23278.
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Opiola, Kristie K. "The Effects of Child Parent Relationship Therapy (CPRT) for Adoptive Families." Thesis, University of North Texas, 2016. https://digital.library.unt.edu/ark:/67531/metadc862867/.
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Adoptive parents often struggle to understand and meet the social-emotional behavioral needs of their adopted child, particularly when the child's pre-adoption experience lacked a secure relationship with an attuned and responsive caregiver. This randomized controlled study, a replication of Carnes-Holt and Bratton's 2014 research, investigated the effects of child parent relationship therapy (CPRT) for adoptive families who reported attached-related concerns such as difficulties establishing a mutually satisfying parent-child relationship as well as concerns about the adopted child's behavior and parental stress. Participants were 49 adoptive parents (61% female; 7% couples; 86% European American, 6% Latino, 6% Asian, and 2% Black American) with adoptees between the ages of 2.5 to 9 (50% female; 35% European American, 22% Asian, 12% Latino, 10% Black American, and 21% Biracial or other). Eighty-four percent of children were adopted internationally or from the foster care system. Parents were randomly assigned to CPRT or treatment as usual (TAU). Results from 2 (group) by 2 (time) repeated measures ANOVAs indicated that compared to the TAU control group, parents who participated in CPRT reported statistically significant improvement in child behavior problems, parent-child relationship stress, and parental empathy, with a large treatment effects on all measures. Findings confirmed results from Carnes-Holt and Bratton's study and provided strong support for CPRT as a responsive intervention for adoptive parents and their children.
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SUN, FEI. "Analysis to China's Urban and Rural CPI Data." Thesis, Uppsala universitet, Statistiska institutionen, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-175796.
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Tercier, John Anthony. "The ultimate rush : CPR and the contemporary deathbed." Thesis, Birkbeck (University of London), 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.405568.
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Katrínardóttir, Hildigunnur. "Finite Element Modeling of Chest Compressions in CPR." Thesis, KTH, Medicinsk teknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-209009.
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Factors affecting the risk of ribcage injury in adult subjects during CPR were investigated using the torso region of the THUMS model, a full human body FE-model, representing an average adult male. The thoracic dynamic response of the model was compared to experimental PMHS hub loading impact data and live-subject CPR data found in the literature. The model was then used to study the risk of obtaining injuries in various simulated CPR conditions, also varying the stiffness of the costal cartilage. Parameters that are known to predict induced injuries were extracted from the model simulations, i.e. chest deflections, and maximum 1st principal strain and von-Mises stress in the ribs and sternum, as well as the pressure in the heart muscle. These were compared with values that have been reported to have the potential to cause injury. The predictions were compared to experimental findings of the probability of CPR resulting in fractures of the ribs and sternum. The previously mentioned parameters did not reach high enough values to predict fracture occurrences, but interesting trends were highlighted with regards to the different loading conditions investigated. It was demonstrated that human body FE-model simulation studies can be useful for investigating the influence of different CPR related loading conditions on the risk of occurrences of rib and sternal fractures.
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Alfakir, Omar, and Viktor Larsson. "Ambulance CPR Application : Using cross-platform mobile development." Thesis, Högskolan i Halmstad, Akademin för informationsteknologi, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-45561.
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The overall purpose of this project is to develop a cross-platform CPR (cardiopulmonary resuscitation) application mainly for iOS and Android devices. This application aims to guide healthcare workers in the different processes and expected medication during cardiac arrest, which can often be a fast-paced and stressful scenario. The application will need to provide time-based and previous action-based recommendations for following medication and steps. Each step taken as well as at what time it was performed will also need to be documented automatically through the usage of the application. This application is implemented using the framework React Native. Facebook developed React Native in 2015 targeting mobile application development. The base structure of React Native is based on React, a JavaScript library released in 2013 used to build web interfaces. React Native allows creation of mobile applications that can run on iOS and Android devices with a single codebase. This project resulted in a mobile application capable of running on both iOS and Android platforms. The application has enough functionality to be used in a simulation for the CPR procedure during a cardiac arrest rescue scenario.Det övergripande syftet med detta projekt är att utveckla en cross-platform HLR (hjärt- och lungräddnings) applikation främst för iOS och Android enheter. Syftet med denna applikation är att hänvisa sjukvårdspersonal genom de olika processer och den förväntade medicineringen vid hjärtstopp, vilket ofta kan vara ett väldigt hög tempo och stressfyllt scenario. Applikationen kommer behöva ge tidsbaserade och tidigare åtgärds baserade rekommendationer för följande medicinering och steg. Varje steg som tas samt när de tas kommer även behöva dokumenteras automatiskt genom användandet av applikationen. Denna applikation implementeras med hjälp av ramverket React Native. Facebook utvecklade React Native 2015 med inriktning på mobilapplikationsutveckling. Bas strukturen hos React Native är baserad på React, ett JavaScript bibliotek släppt 2013 som används till att bygga webbgränssnitt. React Native tillåter skapande av mobilapplikationer som kan användas på iOS och Android enheter med en enda kodbas. Detta projekt resulterade i en mobilapplikation kapabel att köras på både iOS och Android plattformar. Denna applikation har tillräcklig funktionalitet att användas i en simulering för HLR proceduren under ett hjärtstopps scenario.
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Clements, Andrea D. "Use of the CPRS-48 With Children Under 3 Years of Age." Digital Commons @ East Tennessee State University, 2000. https://dc.etsu.edu/etsu-works/7311.
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Miley, Richard P. "An evaluation of the effectiveness of two teaching methods on retention of basic cardiac life support for the lay community /." Connect to online version, 1986. http://minds.wisconsin.edu/handle/1793/38838.
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Ozimek, Adam. "Sticky rents and the CPI for owner-occupied housing." Thesis, Temple University, 2013. http://pqdtopen.proquest.com/#viewpdf?dispub=3595699.
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This dissertation examines the implications of sticky rents on the measurement of owner-occupied housing in the Consumer Price Index (CPI). I argue that marginal and not average rents are the most theoretically justified measurement of owners' equivalent rent (OER), and that the current measurement of rental inflation using average rents is methodologically incorrect. I then discuss the literature on sticky rents and tenure discounts and present a theoretical model showing the implications of sticky rents for aggregate measures of inflation. Then I use two new data sources to construct marginal rent measures to compare to average rent measures. The results show that marginal rents reflect market turning points sooner, and show a larger post-housing bubble decline in rents. In addition, marginal rents are shown to forecast overall inflation better than average rents. Finally, the implications of these results for policy are considered using the Taylor Rule for optimal monetary policy. The results present suggestive evidence that the impacts of switching to marginal rents may be large enough to significantly impact monetary policy and allow the Federal Reserve to be more responsive to both the boom and bust of housing bubbles.
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Barros, Rebecca Wellington dos Santos. "Price setting and macroeconomic variables: evidence from Brazilian CPI." reponame:Repositório Institucional do FGV, 2009. http://hdl.handle.net/10438/4248.
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This thesis investigates price-setting in a variable macroeconomic environment using a unique data set from the Brazilian CPI index of Fundação Getulio Vargas. The primary data consist of a panel of individual prices for goods and services covering 100% of the CPI for the 1996-2008 period. During this period a number of important events produced substantial macroeconomic variability in Brazil: two emerging market crises, a change of exchange rate and monetary regimes, blackouts and energy rationing, an election crisis, and a regular disinflation. As a consequence, inflation, macroeconomic uncertainty, exchange rates, and output exhibit important variation in the sample. In the first chapter we describe the data-base and present the main price-setting statistics for Brazil. Then, in the second and third chapters, we construct time series of price-setting statistics and temporary sales and relate them to macroeconomic variables using regression analyses. We find that there is a substantial relationship between price setting statistics and the macroeconomic environment for the Brazilian Economy.
Esta tese investiga as estratégias de precificação em ambientes macroeconômicos distintos, utilizando uma base de dados única para o IPC da Fundação Getulio Vargas. A base de dados primária consiste em um painel de dados individuais para bens e serviços representando 100% do IPC para o período de 1996 a 2008. Durante este período, diversos eventos produziram uma variabilidade macroeconômica substancial no Brasil: duas crises em países emergentes, uma mudança de regime cambial e monetário, racionamento de energia, uma crise de expectativas eleitorais e um processo de desinflação. Como consequência, a inflação, a incerteza macroeconômica, a taxa de câmbio e o produto exibiram uma variação considerável no período. No primeiro capítulo, nós descrevemos a base de dados e apresentamos as principais estatísticas de price-setting para o Brasil. Em seguida, nos capítulos 2 e 3, nos construímos as séries de tempo destas estatísticas e das estatísticas de promoções, e as relacionamos com as variáveis macroeconômicas utilizando análises de regressões. Os resultados indicam que há uma relação substancial entre as estatísticas de price-setting e o ambiente macroeconômico para a economia brasileira.
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Reichel, Rachel. "Comparing Subjective Fatigue During Two Cardiopulmonary Resuscitation (CPR) Models." Thesis, North Dakota State University, 2019. https://hdl.handle.net/10365/31697.
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Bystanders are the first rescuers to perform CPR for patients suffering from cardiac arrest. Compression-only CPR decreases the amount of interruption time between compressions but increases the fatigue of the rescuer. In this study, participants were certified as lay rescuers and performed two compression-only CPR protocols for eight minutes and 59 seconds. The two protocols were 30 compressions to a 10-second break and continuous compressions with as many 10-second breaks as needed. Body mass index and hand grip strength were collected before the CPR protocols. Rate of Perceived Exertion scores were taken at three, six and nine minutes during each protocol. There were increased fatigue levels during the continuous compressions protocol at all three time intervals. A relationship between hand grip strength and the proper depth was determined for the 30:10 protocol as well as a relationship between hand grip strength and the continuous compressions fatigue levels.
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Nishiyama, Chika. "Effectiveness of simplified chest compression-only CPR training program." 京都大学 (Kyoto University), 2010. http://hdl.handle.net/2433/120535.
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Gomes, da Silva Carolina. "A ação do Estado no (des)controle ambiental : o conflito entre as condições operacionais e a ampliação das atribuições legais do órgão estadual de meio ambiente de Pernambuco (a trajetória da CPRH)." Universidade Federal de Pernambuco, 2004. https://repositorio.ufpe.br/handle/123456789/1843.
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Previous issue date: 2004Quando a Organização das Nações Unidas realizou, em 1972, a Conferência sobre Meio Ambiente Humano, os países capitalistas centrais defrontavam-se com a crise do padrão fordista-keynesiano de desenvolvimento. A partir da década de setenta assiste-se a institucionalização da questão ambiental concomitante ao processo de restruturação produtiva, que dentre outros fatores, implicou na transferência de unidades produtivas dos países industrializados para os países do então Terceiro Mundo. A América Latina foi o principal destino das indústrias poluentes vindas da Europa e da América do Norte, sendo o Brasil o principal país receptor. A preocupação ambiental não perpassava as decisões políticas quanto à qualidade do desenvolvimento, ao contrário, aquela era tida como obstáculo para a consecução de um patamar econômico e social que se desejava atingir. Tanto era assim que apesar do governo brasileiro ter criado, em 1973, uma instituição federal responsável pelas questões ambientais, sua existência assumia um caráter meramente simbólico, tendo em vista sua falta de estrutura e de capacidade interventiva. Porém essa escassez não era fortuita. O Estado, que se encontrava sob o regime militar, não tinha a intenção de garantir a efetividade do controle ambiental, porque fazê-lo seria contrapor-se ao próprio esforço que ele empreendia para a expansão do parque industrial brasileiro. Mesmo com a retomada da democracia nos anos oitenta, a primazia da dimensão econômica se sobrepunha à qualidade e preservação ambiental, tendo em vista a necessidade de crescimento econômico face à recessão. Ao final dos anos oitenta, o governo brasileiro adere aos postulados do neoliberalismo, avançando na desregulamentação da economia. Contraditoriamente, assiste-se o avanço na regulação ambiental, que, no entanto, não foi acompanhado de ampliação da capacidade operativa dos órgãos ambientais dos três níveisde governo. Falta investimento público para a proteção do meio ambiente. Em Pernambuco constatou-se que a precariedade marca o controle e a gestão ambiental no estado. O órgão estadual de meio ambiente (OEMA) executor da política ambiental, a despeito de quase três décadas de existência e do aumento de suas atribuições, continua sem sede própria, com quadro funcional insuficiente e caracterizado por diferentes relações contratuais, com frota de veículo deficitária, etc. A administração dos recursos configura-se na administração da própria escassez. A cultura do órgão é voltada para o licenciamento ambiental, enquanto o caráter conservacionista é sufocado pela falta de pessoal, de infra-estrutura e pela não regulamentação de leis estaduais sobre áreas de proteção ambiental. Embora a situação deficitária do OEMA local, desde 1999, verifica-se um decréscimo no repasse do Tesouro Estadual. E apesar do governo discursar sobre desenvolvimento sustentável, suas ações, pautadas por ajustes fiscais, invés de assegurar a sustentabilidade, corrobora para a ampliação das lacunas no controle e gestão ambientais e, consequentemente, para a poluição e a degradação do meio ambiente em Pernambuco
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Said, Aly Marei. "Conception économique des ponts-routes en béton précontraint, travées simples, sections CPCI préfabriquées." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0004/MQ33889.pdf.
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Wilcockson, David C. "The crustacean hyperglycemic hormone precursor-related peptide (CPRP) of the crab Cancer pagurus." Thesis, Bangor University, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.322895.
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Mulugeta, Wubet Edwards Kevin A. "Functional analysis of the Pez-Cpr genomic region in Drosophila." Normal, Ill. : Illinois State University, 2005. http://wwwlib.umi.com/cr/ilstu/fullcit?p3196653.
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Thesis (Ph. D.)--Illinois State University, 2005.Title from title page screen, viewed September 26, 2006. Dissertation Committee: Kevin Edwards (chair), David Borst, Laura Vogel, David Rubin, Jon Friesen. Includes bibliographical references (leaves 133-143) and abstract. Also available in print.
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Virk, Guneet Kaur. "Characterization of the CPI-17 Gene Family in Danio rerio." Scholarly Commons, 2016. https://scholarlycommons.pacific.edu/uop_etds/3141.
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Regulation of smooth muscle contraction depends on the phosphorylated state of myosin light chain (MLC). Although there are many kinases responsible for phosphorylating MLC, the myosin phosphatase complex is solely accountable for its dephosphorylation. Myosin phosphatase, in turn, is tightly regulated by many proteins. One of them being the CPI-17 gene family, which inhibits myosin phosphatase. This family of proteins is composed of CPI-17 itself, PHI-1, KEPI, and GBPI. Zebrafish have two genes each of CPI-17 and PHI-1, which are expressed during early embryonic development. This study sets out to investigate whether the two isoforms of CPI-17 and PHI-1 have diverged in function or expression using zebrafish as a model organism. Through a series of biochemical tests and assays, we have determined that the two isoforms have diverged in their expression pattern from each other, however they have similar function.
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Carretti, Fabio Maurizio Lopes. "Eficiência em serviço de IT terceirizados: o caso CPR/IBM." reponame:Repositório Institucional do FGV, 2009. http://hdl.handle.net/10438/5754.
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Previous issue date: 2009-05-28T00:00:00ZAlegando razões de eficiência, muitas firmas vêm crescentemente adotando a terceirização de TI como um meio de conseguir economia de custos, maior foco em suas operações e alinhamento estratégico. Não obstante as razões verbalmente alegadas pelas empresas para terceirizar serviços de TI todas elas buscam a prestação de serviço em TI como uma forma de transferir a eficiência da prestadora de serviços para a empresa cliente. Com a competitividade cada vez maior entre as prestadoras de serviço e por mais que as empresas prestadoras de serviço tentem diferenciar-se entre si, o fato é que não existem muitas diferenças que possam saltar a vista entre os grandes prestadores de serviço de terceirização de TI atuais, pois fornecem de forma quase que indiferente custo, qualidade, expertise técnica, métodos e processos, experiência comprovada, boa saúde financeira, presença global. Mas porque alguns provedores de serviço de TI conseguem ser mais eficiente que seus clientes? Porque os departamentos de TI, das empresas clientes, têm dificuldade de copiar o modelo destes fornecedores e operar com os mesmos patamares de eficiência? Quais as dificuldades e barreiras que existem? Quais as melhores práticas adotadas pela provedora de serviço e pelo cliente para realizar uma terceirização de serviços de TI com sucesso? Este trabalho analisa em caráter exploratório, através de um estudo de caso, a terceirização de TI feita pela CPR (Canadian Pacific Railroad) em 2003 junto à IBM Canadá, aonde seu custo contratual teve uma redução de cerca de 20% do custo original de operação da CPR , buscando identificar porque que algumas empresas prestadoras de serviço de TI conseguem ser mais eficiente que seus clientes, porque não se optou em realizar a transformação internamente e quais as melhores práticas adotadas pela provedora de serviço para realizar uma terceirização de serviços de TI com sucesso. Para isto, o trabalho parte da literatura para indicar possíveis fatores motivadores para a terceirização assim como as melhores práticas de gestão utilizadas atualmente pelas prestadoras de serviço e empresas clientes para uma terceirização de serviços de TI. Posteriormente segue para uma etapa de campo, em busca de elementos que permitam a análise de sua relevância. Os fundamentos teóricos para a terceirização se basearam na: Teoria de Custos de Transação (TCT -Transaction Cost Theory) e na Teoria Baseada em Recursos (RBT-Resource Base Theory). Na etapa de campo explorou-se um projeto de terceirização de infra-estrutura de TI entre a IBM e CPR (Canadian Pacific Railroad), aonde foram feitas entrevistas estruturadas com os gestores do cliente CPR, gestores da prestadora de serviços IBM, assim como analisados materiais produzidos pelo projeto, com o objetivo de identificar porque algumas empresas prestadoras de serviço de TI conseguem ser mais eficiente que seus clientes. Os resultados encontrados apontam que a CPR possuía uma menor eficiência do que a IBM por razões: de foco, de processo e de escala. Tais características são em si não facilmente imitáveis pela empresa cliente tornando a parceria estratégica a melhor solução para o aumento de eficiência operacional na empresa cliente.
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Kinnaman, Emily Allison. "Evaluating the efficacy of post-CPR purification columns using low template single source DNA amplified with identifiler and identifiler plus." Thesis, Boston University, 2013. https://hdl.handle.net/2144/21191.
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Thesis (M.S.F.S.) PLEASE NOTE: Boston University Libraries did not receive an Authorization To Manage form for this thesis or dissertation. It is therefore not openly accessible, though it may be available by request. If you are the author or principal advisor of this work and would like to request open access for it, please contact us at open-help@bu.edu. Thank you.Ideally a DNA profile will have high Peak Heights (PHs), balanced Peak Height Ratios (PHRs) and no drop out. However, low template DNA (LTDNA) is limited in quantity, quality or both and LTDNA profiles do not always consistently provide interpretable signal. Post-Polymerase Chain Reaction (PCR) purification is an efficient enhancement method that can be utilized to increase the amount of information in a LTDNA profile without elevated stutter, which can be common with other enhancement methods. Post-PCR purification decreases the remaining components left over from amplification, such as deoxyribonucleotide triphosphates, primers, salts, and enzymes so there is less competition during the electrokinetic injection and more DNA will go into the capillary. When post-PCR purification is used; PH’s will increase, PHRs should remain stable before and after purification and may result in recovery of alleles that previously had dropped out. Allele recovery may be the difference between an inconclusive result and an inclusion or exclusion. The efficacy of Post-PCR purification was assessed by amplifying single source DNA with both ABI AMPFℓSTR® Identifiler® (template mass down to 0.0625 ng) and Identifiler® PLUS (template mass down to 0.03125 ng) and performing post-PCR purification with Qiagen® MinElute® and Macherey-Nagel NucleoSpin®. The original amplified product and purified product were analyzed and compared and it was determined post-PCR purification reduced the primer front, increased the PHs, recovered additional alleles and did not affect the PHRs. On average the Fold Increase (FI) for Identifiler® product purified with Qiagen® MinElute® is 3.5 and the average FI for Identifiler® PLUS product purified with Qiagen® MinElute® and Macherey-Nagel NucleoSpin® is 3.2. Additionally, the stutter percentage observed in the original sample profile was compared to the purified samples to determine if purification affected the stutter percentage of Identifiler® PLUS product. It was determined at only a few alleles the amplified product was above or below the stutter percentage of purified product. The stutter percentage values for purified samples were further compared to the Identifiler® PLUS manual and only one allele’s stutter percentage is above the companies stutter cut off values. Post-PCR purification with Qiagen® MinElute® or Macherey-Nagel NucleoSpin® is a successful enhancement method to increase information of a LTDNA profile without introducing additional complications that other enhancement methods are known to do.
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Schwarz, Maria. "Constant Proportion Portfolio Insurance Eine empirische Analyse der CPPI-Investmentstrategie unter Berücksichtigung höherer Momente /." St. Gallen, 2008. http://www.biblio.unisg.ch/org/biblio/edoc.nsf/wwwDisplayIdentifier/04608659001/$FILE/04608659001.pdf.
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