Thematische Bibliographien / WINNER II

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Auswahl der wissenschaftlichen Literatur zum Thema „WINNER II“

Autor: Grafiati

Veröffentlicht am 24. Juni 2021

Zuletzt aktualisiert am 15. Februar 2022

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Zeitschriftenartikel zum Thema "WINNER II"

Van Doorn, G. Sander, Franz Weissing und Geerten Hengeveld. „The Evolution of Social Dominance II: Multi-Player Models“. Behaviour 140, Nr. 10 (2003): 1333–58. http://dx.doi.org/10.1163/156853903771980611.

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AbstractThe social hierarchies observed in natural systems often show a high degree of transitivity. Transitive hierarchies do not only require rank differentiation within pairs of individuals but also a higher level ordering of relations within the group. Several authors have suggested that the formation of linear hierarchies at the group level is an emergent property of individual behavioural rules, referred to as winner and loser effects. Winner and loser effects occur if winners of previous conflicts are more likely to escalate the current conflict, whereas the losers of previous conflicts are less likely to do so. According to this idea, an individual's position in a hierarchy may not necessarily reflect its fighting ability, but may rather result from arbitrary historical asymmetries, in particular the history of victories and defeats. However, if this is the case, it is difficult to explain from an evolutionary perspective why a low ranking individual should accept its subordinate status. Here we present a game theoretical model to investigate whether winner and loser effects giving rise to transitive hierarchies can evolve and under which conditions they are evolutionarily stable. The main version of the model focuses on an extreme case in which there are no intrinsic differences in fighting ability between individuals. The only asymmetries that may arise between individuals are generated by the outcome of previous conflicts. We show that, at evolutionary equilibrium, these asymmetries can be utilized for conventional conflict resolution. Several evolutionarily stable strategies are based on winner and loser effects and these strategies give rise to transitive hierarchies.

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YAO, Q., und L. J. WEI. „PLAY THE WINNER FOR PHASE II/III CLINICAL TRIALS“. Statistics in Medicine 15, Nr. 22 (30.11.1996): 2413–23. http://dx.doi.org/10.1002/(sici)1097-0258(19961130)15:22<2413::aid-sim460>3.0.co;2-n.

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Mandrekar, Sumithra J., und Daniel J. Sargent. „Pick the Winner Designs in Phase II Cancer Clinical Trials“. Journal of Thoracic Oncology 1, Nr. 1 (Januar 2006): 5–6. http://dx.doi.org/10.1016/s1556-0864(15)31505-7.

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Franz, Mathias, Emily McLean, Jenny Tung, Jeanne Altmann und Susan C. Alberts. „Self-organizing dominance hierarchies in a wild primate population“. Proceedings of the Royal Society B: Biological Sciences 282, Nr. 1814 (07.09.2015): 20151512. http://dx.doi.org/10.1098/rspb.2015.1512.

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Linear dominance hierarchies, which are common in social animals, can profoundly influence access to limited resources, reproductive opportunities and health. In spite of their importance, the mechanisms that govern the dynamics of such hierarchies remain unclear. Two hypotheses explain how linear hierarchies might emerge and change over time. The ‘prior attributes hypothesis’ posits that individual differences in fighting ability directly determine dominance ranks. By contrast, the ‘social dynamics hypothesis’ posits that dominance ranks emerge from social self-organization dynamics such as winner and loser effects. While the prior attributes hypothesis is well supported in the literature, current support for the social dynamics hypothesis is limited to experimental studies that artificially eliminate or minimize individual differences in fighting abilities. Here, we present the first evidence supporting the social dynamics hypothesis in a wild population. Specifically, we test for winner and loser effects on male hierarchy dynamics in wild baboons, using a novel statistical approach based on the Elo rating method for cardinal rank assignment, which enables the detection of winner and loser effects in uncontrolled group settings. Our results demonstrate (i) the presence of winner and loser effects, and (ii) that individual susceptibility to such effects may have a genetic basis. Taken together, our results show that both social self-organization dynamics and prior attributes can combine to influence hierarchy dynamics even when agonistic interactions are strongly influenced by differences in individual attributes. We hypothesize that, despite variation in individual attributes, winner and loser effects exist (i) because these effects could be particularly beneficial when fighting abilities in other group members change over time, and (ii) because the coevolution of prior attributes and winner and loser effects maintains a balance of both effects.

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Spivack, John, Bin Cheng und Bruce Levin. „Adding dose modifications into Phase II and Phase II/III seamless trials“. Statistical Methods in Medical Research 29, Nr. 5 (03.07.2019): 1315–24. http://dx.doi.org/10.1177/0962280219859387.

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We present a technique for adding dose modifications into seamless Phase II and Phase II/III trials featuring dose selection at an interim analysis. The method is convenient to apply and can be used either in a fully prespecified, structured way or as a response to new considerations that emerge at interim. Strong control of the familywise error rate regarding false declarations of efficacy versus control is maintained. Two examples are given. One illustrates how the method could potentially “save” a trial performed in a Phase II context. The other is a seamless Phase II/III trial that uses an adaptive exploration strategy for an assumed nonmonotonic dose-response curve. It can result in greatly improved efficiency over a standard “promote the winner” rule.

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Narandžić, Milan, Christian Schneider, Wim Kotterman und Reiner S. Thomä. „Quantification of Scenario Distance within Generic WINNER Channel Model“. International Journal of Antennas and Propagation 2013 (2013): 1–17. http://dx.doi.org/10.1155/2013/176704.

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Starting from the premise that stochastic properties of a radio environment can be abstracted by defining scenarios, a generic MIMO channel model is built by the WINNER project. The parameter space of the WINNER model is, among others, described by normal probability distributions and correlation coefficients that provide a suitable space for scenario comparison. The possibility to quantify the distance between reference scenarios and measurements enables objective comparison and classification of measurements into scenario classes. In this paper we approximate the WINNER scenarios with multivariate normal distributions and then use the mean Kullback-Leibler divergence to quantify their divergence. The results show that the WINNER scenario groups (A, B, C, and D) or propagation classes (LoS, OLoS, and NLoS) do not necessarily ensure minimum separation within the groups/classes. Instead, the following grouping minimizes intragroup distances: (i) indoor-to-outdoor and outdoor-to-indoor scenarios (A2, B4, and C4), (ii) macrocell configurations for suburban, urban, and rural scenarios (C1, C2, and D1), and (iii) indoor/hotspot/microcellular scenarios (A1, B3, and B1). The computation of the divergence between Ilmenau and Dresden measurements and WINNER scenarios confirms that the parameters of the C2 scenario are a proper reference for a large variety of urban macrocell environments.

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Chen, Dung-Tsa, Po-Yu Huang, Hui-Yi Lin, Alberto A. Chiappori, Dmitry I. Gabrilovich, Eric B. Haura, Scott J. Antonia und Jhanelle E. Gray. „A Bayesian pick-the-winner design in a randomized phase II clinical trial“. Oncotarget 8, Nr. 51 (07.07.2017): 88376–85. http://dx.doi.org/10.18632/oncotarget.19088.

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Asli, Larbi, Méziane Aïder und El-Ghazali Talbi. „Solving a dynamic combinatorial auctions problem by a hybrid metaheuristic based on a fuzzy dominance relation“. RAIRO - Operations Research 53, Nr. 1 (Januar 2019): 207–21. http://dx.doi.org/10.1051/ro/2018051.

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This paper introduces a bi-objective winner determination problem which is based on English auctions. Most models of combinatorial auctions (winner determination problem) do not allow the bidder to update his offer, due to the fact that these mechanisms are static. However in reality bidders are in rough competition while there is time for auction. In this work we give a mathematical formulation of the dynamic model of the bi-objective winner determination problem, where the objectives are: (i) maximization of the total income, (ii) maximization of the number of items sold. This problem is based on the English auction mechanism, which allows bidders to renew their bids until the end of the exercise period. Then the solution is proposed by giving an algorithm based on an hybridization of a metaheuristic with a fuzzy dominance relation. A numerical experimentation using this algorithm on simulated data gives rise to satisfactory results.

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Adams, Samuel, Rachel Reilly, Janet Huebner, Virginia Kraus und Dana Nettles. „2017 J. Leonard Goldner Award Winner“. Foot & Ankle Orthopaedics 2, Nr. 3 (01.09.2017): 2473011417S0000. http://dx.doi.org/10.1177/2473011417s000017.

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Category: Ankle,Ankle Arthritis,Basic Sciences/Biologics,Trauma Introduction/Purpose: Intra-articular ankle fracture (IAF) is known to cause post-traumatic osteoarthritis (PTOA) of the ankle. While the exact etiology remains elusive, the sequelae of intra-articular inflammation has been suggested and our previous work demonstrated a highly pro-inflammatory environment at the time of IAF fixation. ORIF of an IAF can occur 10-14days, or later, after fracture, subjecting the cartilage to this pro-inflammatory environment during this time. Therefore, there is ample time to intervene with an anti-inflammatory agent, yet the exact synovial fluid (SF) composition is unknown. This study examined the effect of time and fracture severity on the SF microenvironment during the acute phase following IAF. Knowledge of the intra- articular metabolic derangement after IAF will help to understand the pathology of PTOA and to develop therapeutic interventions. Methods: Ankle SF was collected from 54 patients with an IAF at the time of surgery for initial external fixation or definitive ORIF and analyzed for concentrations of 10 cytokines, 5 matrix metalloprotienases, 2 products of cartilage catabolism, and combined products of heme metabolism. All analytes were correlated with time from fracture and further analyzed for an effect of 3 clinically relevant time subgroups that correspond to potential clinical intervention time points for ankle fracture management: 0-2 days (initial ER presentation), 3-9 days (clinic presentation), and =10 days (definitive fixation). The effect of fracture severity was determined by grouping SF according to the number of radiographic intra-articular fracture lines. Results: Correlation analysis revealed a significant relationship with time from fracture for 15 of 18 analytes (Figure 1). Temporal grouping of SF revealed an initial (0-2 days) spike of pro-inflammatory (IL-12p70, IL-1?, IL-6) and anti-inflammatory (IL-10 and IL-4) cytokines, MMP-9, and sGAG, followed immediately (3-9 days) by exposure of the joint space to heme breakdown products and an accompanying surge in mediators and products of cartilage catabolism (MMP-1, MMP-2, MMP-3, MMP-10 and CTX-II). After 10 days there was a decrease in pro- and anti-inflammatory cytokines, but a persistence of mediators of cartilage matrix catabolism. While fracture severity had a significant effect on SF levels of MMP-2, MMP-9, and CTXII, there was no clear relationship between the number of fracture lines and SF levels of analytes. Conclusion: This study provides novel insights into temporal inflammatory fluctuations following acute IAF of the ankle and supports consideration of an early evacuation of the jointspace to reduce the intra-articular inflammatory burden and exposure of the cartilage and synovium to these detrimental factors. Moreover, this study identifies the temporal composition of SF products that are known to cause osteoarthritis. Therefore, this information can be used to develop novel therapeutics that can tailored to the time of presentation after intra-articular ankle fracture.

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Dissertationen zum Thema "WINNER II"

Myrberger, Axel, und Essen Benjamin Von. „Classifying True and Fake Telecommunication Signals With Deep Learning“. Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-297675.

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This project aimed to classified artificiality gener-ated,fake, and authentic,true, telecommunication signals, basedupon their frequency response, using methods from deep learn-ing. Another goal was to accomplish this with the least amountof dimension of data possible. The datasets used contained of anequal amount of measured, provided by Ericsson, and generated,by a WINNER II implementation in Matlab, frequency responses.It was determined that a normalized version of the absolute valueof the complex frequency response was enough information for afeedforward network to do a sufficient classification. To improvethe accuracy of the network we did a hyperparameter search,which allowed us to reach an accuracy of 90 percent on our testdataset. The results show that it is possible for neural networksto differentiate between true and fake telecommunication signalsbased on their frequency response, even if it is hard for a humanto tell the difference.
Målet med det här projektet var att klassificera artificiellt genererade signaler, falska, och riktiga, sanna, telekommunikation signaler med hjälp av signalernas frekvens- svar med djup inlärningsmetoder, deep learning. Ett annat mål med projektet var att klassificera signalerna med minsta möjliga antalet dimensioner av datan. Datasetet som användes bestod av till hälften av uppmät data som Ericsson har tillhandahållit, och till hälften av generad data ifrån en WINNER II modell implementerad i Matlab. En slutsats som kunde dras är att en normaliserad version av beloppet av det komplexa frekvenssvaret innehöll tillräckligt med information för att träna ett feedforward nätverk till att uppnå en hög klassificeringssäkerhet. För att vidare öka tillförlitligheten av nätverket gjordes en hyperparametersökning, detta ökade tillförligheten till 90 procent för testdataseten. Resultaten visar att det är möjligt för neurala nätverk att skilja mellan sanna och falska telekommunikations- signaler baserat på deras frekvenssvar, även om det är svårt för människor att skilja signalerna åt.
Kandidatexjobb i elektroteknik 2020, KTH, Stockholm

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Huang, Feifei. „Modeling the Winners of NCAA Women's Division II Basketball Tournament Games“. Thesis, North Dakota State University, 2016. https://hdl.handle.net/10365/28127.

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This thesis first presents a least squares regression model to identify the in-game statistics that help explain the variation in point spread for NCAA Division II Women’s Basketball Tournament games. Then a logistic regression model is presented to estimate the probability of a team winning a tournament game based on the differences in significant in-game statistics. Differences in the following variables are significant in both models: field goal percentage, 3-point field goal percentage, free throw percentage, offensive rebounds, personal fouls and turnovers. Difference in assists is only significant in the point spread model. Both models are validated using the in-game statistics for the 2015 tournament, indicating a prediction accuracy as high as 95.24%. Seasonal averages for the 2014 - 2015 season are then used to predict game results in the 2015 tournament. The prediction accuracies are 60.32% and 66.67% for the point spread model and the logistic regression model, respectively.

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Oliveira, M?nica Rodrigues de. „Efici?ncia de extra??o de cobre e n?quel utilizando sistemas microemulsionados bif?sicos e trif?sicos“. Universidade Federal do Rio Grande do Norte, 2014. http://repositorio.ufrn.br:8080/jspui/handle/123456789/17785.

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The environmental impact due to the improper disposal of metal-bearing industrial effluents imposes the need of wastewater treatment, since heavy metals are nonbiodegradable and hazardous substances that may cause undesirable effects to humans and the environment. The use of microemulsion systems for the extraction of metal ions from wastewaters is effective when it occurs in a Winsor II (WII) domain, where a microemulsion phase is in equilibrium with an aqueous phase in excess. However, the microemulsion phase formed in this system has a higher amount of active matter when compared to a WIII system (microemulsion in equilibrium with aqueous and oil phases both in excess). This was the reason to develop a comparative study to evaluate the efficiency of two-phases and three-phases microemulsion systems (WII and WIII) in the extraction of Cu+2 and Ni+2 from aqueous solutions. The systems were composed by: saponified coconut oil (SCO) as surfactant, n-Butanol as cosurfactant, kerosene as oil phase, and synthetic solutions of CuSO4.5H2O and NiSO4.6H2O, with 2 wt.% NaCl, as aqueous phase. Pseudoternary phase diagrams were obtained and the systems were characterized by using surface tension measurements, particle size determination and scanning electron microscopy (SEM). The concentrations of metal ions before and after extraction were determined by atomic absorption spectrometry. The extraction study of Cu+2 and Ni+2 in the WIII domain contributed to a better understanding of microemulsion extraction, elucidating the various behaviors presented in the literature for these systems. Furthermore, since WIII systems presented high extraction efficiencies, similar to the ones presented by Winsor II systems, they represented an economic and technological advantage in heavy metal extraction due to a small amount of surfactant and cosurfactant used in the process and also due to the formation of a reduced volume of aqueous phase, with high concentration of metal. Considering the reextraction process, it was observed that WIII system is more effective because it is performed in the oil phase, unlike reextraction in WII, which is performed in the aqueous phase. The presence of the metalsurfactant complex in the oil phase makes possible to regenerate only the surfactant present in the organic phase, and not all the surfactant in the process, as in WII system. This fact allows the reuse of the microemulsion phase in a new extraction process, reducing the costs with surfactant regeneration
O impacto ambiental gerado pelo descarte de efluentes industriais carregados de metais pesados imp?e a necessidade do tratamento desses rejeitos, uma vez que s?o t?xicos e n?o biodegrad?veis, podendo causar s?rios danos ? popula??o e ao meio ambiente. O processo de extra??o de c?tions met?licos utilizando microemuls?es ? eficaz quando acontece em WII, onde a fase microemulsionada encontra-se em equil?brio com uma fase aquosa em excesso. No entanto, a microemuls?o formada nesse sistema possui uma maior quantidade de mat?ria ativa quando comparada ao equil?brio de WIII (microemuls?o em equil?brio com fases aquosa e oleosa, ambas em excesso), ainda pouco estudado, motivando, assim, o desenvolvimento de um estudo comparativo da efici?ncia de extra??o dos ?ons Cu2+ e Ni2+ por sistemas microemulsionados bif?sicos e trif?sicos (WII e WIII). Os constituintes utilizados nos sistemas de extra??o foram: ?leo de coco saponificado - OCS (Tensoativo), n- Butanol (Cotensoativo), querosene (Fase Oleosa) e solu??es sint?ticas de CuSO4.5H2O e NiSO4.6H2O com NaCl 2% (fases aquosas). Foram obtidos os diagramas de fases pseudotern?rios e os sistemas microemulsionados foram caracterizados atrav?s das t?cnicas de tens?o superficial, tamanho de part?culas e microscopia eletr?nica de varredura (MEV). A concentra??o dos ?ons foi determinada por espectrometria de absor??o at?mica. O estudo da extra??o dos c?tions met?licos Cu2+ e Ni2+ na regi?o de WIII contribuiu para um melhor entendimento dos processos de extra??o por microemuls?o, elucidando os v?rios comportamentos apresentados na literatura para esses sistemas. Al?m disso, uma vez que houve uma alta efici?ncia de extra??o, similar aos sistemas de Winsor II, o sistema trif?sico (WIII), por apresentar uma menor quantidade de tensoativo e cotensoativo, e um menor volume de fase aquosa ap?s a extra??o, levou a uma maior concentra??o do metal, representando uma vantagem econ?mica e tecnol?gica do processo. Assim, a extra??o em sistema trif?sico ? vi?vel e, apesar dos percentuais de extra??o em WII e WIII serem semelhantes, o sistema de WIII leva a uma maior concentra??o do metal na fase extrato. O presente trabalho mostrou, ainda, que a etapa de reextra??o para os sistemas em WIII ? mais eficaz pois, diferentemente da extra??o em Winsor II, ela ? realizada na fase oleosa, onde est? depositado o complexo metal/tensoativo, regenerando somente o tensoativo que complexa com o metal na fase org?nica, e n?o todo o tensoativo utilizado, como ? o caso do equil?brio em Winsor II. Este fato viabiliza a reutiliza??o da fase microemuls?o no processo de extra??o, diminuindo os custos de regenera??o do tensoativo

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Greifenberg, Ann Katrin [Verfasser], Martin [Akademischer Betreuer] Engelhard und Roland [Gutachter] Winter. „Biochemische Untersuchung der Phosphorylierungsmuster im Transkriptionszyklus der RNA Polymerase II / Ann Katrin Greifenberg. Betreuer: Martin Engelhard. Gutachter: Roland Winter“. Dortmund : Universitätsbibliothek Dortmund, 2014. http://d-nb.info/1108290256/34.

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Wingen, Lukas Martin [Verfasser]. „Total Synthesis of Farnesyl Lipid I/II Analogs and Contributions to the Total Synthesis of Vancoresmycin / Lukas Martin Wingen“. Bonn : Universitäts- und Landesbibliothek Bonn, 2021. http://d-nb.info/1235525058/34.

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Winkel, Jens Martin [Verfasser], und Matthias [Akademischer Betreuer] Hannig. „In-vitro-Untersuchungen zum Randschlussverhalten von vollkeramischen Doppelinlays in Klasse-II-Kavitäten nach thermo-mechanischer Belastung / Jens Martin Winkel ; Betreuer: Matthias Hannig“. Saarbrücken : Saarländische Universitäts- und Landesbibliothek, 2019. http://d-nb.info/1192754972/34.

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Winkel, Martin [Verfasser], und Matthias [Akademischer Betreuer] Hannig. „In-vitro-Untersuchungen zum Randschlussverhalten von vollkeramischen Doppelinlays in Klasse-II-Kavitäten nach thermo-mechanischer Belastung / Jens Martin Winkel ; Betreuer: Matthias Hannig“. Saarbrücken : Saarländische Universitäts- und Landesbibliothek, 2019. http://d-nb.info/1192754972/34.

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Winkel, Carmen. „Rehse, Birgit, Die Supplikations- und Gnadenpraxis in Brandenburg-Preußen : eine Untersuchung am Beispiel der Kurmark unter Friedrich Wilhelm II. (1786-1797) / [rezensiert von] Carmen Winkel“. Universität Potsdam, 2009. http://opus.kobv.de/ubp/volltexte/2009/3208/.

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Rezensiertes Werk: Rehse, Birgit: Die Supplikations- und Gnadenpraxis in Brandenburg-Preußen : eine Untersuchung am Beispiel der Kurmark unter Friedrich Wilhelm II. (1786 - 1797) / von Birgit Rehse. - Berlin : Duncker & Humblot, c 2008. - 676 S. : Ill. - (Quellen und Forschungen zur brandenburgischen und preußischen Geschichte ; 35) Zugl.: Berlin, Freie Univ., Diss., 2006 ISBN-10 3-428-12591-6

ISBN-13 978-3-428-12591-3

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Costa, Emily Cintia Tossi de Ara?jo. „Desenvolvimento de metodologia de extra??o e pr?-concentra??o utilizando sistema microemulsionado para determina??o de Cd, Co, Cu, Ni, Pb e Tl em ?guas naturais e produzidas por HR-CS AAS“. Universidade Federal do Rio Grande do Norte, 2013. http://repositorio.ufrn.br/handle/123456789/19741.

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A contamina??o de ?guas naturais por metais tornou-se assunto de interesse p?blico mundial por serem considerados biocumulativos. A determina??o e o monitoramento de contaminantes met?licos em ?guas ? uma tarefa que deve ser cont?nua e por isto a import?ncia do desenvolvimento, modifica??o e otimiza??o de metodologias anal?ticas capazes de realizar a determina??o dos v?rios contaminantes met?licos em ambientes naturais, pois em muitos casos, a instrumenta??o dispon?vel n?o apresenta sensibilidade anal?tica suficiente para a determina??o de tra?os. Neste estudo, um m?todo de extra??o e pr?-concentra??o utilizando um sistema microemulsionado, no equil?brio de Winsor II foi testado e otimizado para a determina??o dos metais Co, Cd, Pb, Tl, Cu e Ni por Espectrometria de absor??o at?mica de alta resolu??o com fonte cont?nua e atomiza??o em forno de grafite e chama (HR-CS AAS). A otimiza??o do programa de temperatura para o forno de grafite foi realizada atrav?s de curvas de pir?lise e atomiza??o para cada analito sem e com o uso de diferentes modificadores qu?micos. Cd e Pb tiveram condi??es ?timas com modificador permanente Ru, pir?lise em 700?C e atomiza??o em 1700?C, para Tl solu??o Pd/Mg foi o melhor modificador, temperaturas 600?C e 1700?C de pir?lise e atomiza??o, respectivamente e para o Co pir?lise em 800?C e atomiza??o ? 2400?C sem uso de modificador qu?mico, por?m W foi empregado como modificador permanente a fim de se prolongar o tempo de vida ?til do forno. Cu e Ni foram analisados na chama ap?s pr?-concentra??o. Avaliou-se tamb?m fatores que influenciam a efici?ncia de extra??o, atrav?s do efeito salting out. Como compromisso, 6 g L-1 de Na e 1% de HNO3 (v/v) foi definido. Para determina??o do ponto ?timo de extra??o, um planejamento centroide-simplex foi aplicado, sendo escolhido como compromisso as seguintes propor??es: 70% fase aquosa, 10% fase ?leo e 20% Cotensoativo/Tensoativo (C/T = 4). Ap?s extra??o, os metais foram determinados e as Figuras de m?rito obtidas para o m?todo proposto foi: 0,1 a 10 ?g L-1 de faixa linear, LOD 0,094, 0,011, 0,057 e 0,050 ?g L-1 para Pb, Cd, Tl e Co, respectivamente. Testes de adi??o e recupera??o na amostra certificada apresentaram valores de recupera??o ap?s extra??o de 105 e 101% para Pb e Cd, respectivamente, e nas amostras fortificadas a recupera??o para os analitos ficou entre 107 e 108% comprovando que o m?todo proposto pode ser utilizado na extra??o, possibilitou a separa??o dos metais de matrizes complexas, e ainda com bom fator de pr?-concentra??o.
The determination and monitoring of metallic contaminants in water is a task that must be continuous, leading to the importance of the development, modification and optimization of analytical methodologies capab le of determining the various metal contaminants in natural environments, because, in many cases, the ava ilable instrumentation does not provide enough sensibility for the determination of trace values . In this study, a method of extraction and pre- concentration using a microemulsion system with in the Winsor II equilibrium was tested and optimized for the determination of Co, Cd, P b, Tl, Cu and Ni through the technique of high- resolution atomic absorption spectrometry using a continuum source (HR-CS AAS). The optimization of the temperature program for the graphite furnace (HR-CS AAS GF) was performed through the pyrolysis and atomization curves for the analytes Cd, Pb, Co and Tl with and without the use of different chemical modifiers. Cu and Ni we re analyzed by flame atomization (HR-CS F AAS) after pre-concentr ation, having the sample introduction system optimized for the realization of discrete sampling. Salinity and pH levels were also analyzed as influencing factors in the efficiency of the extraction. As final numbers, 6 g L -1 of Na (as NaCl) and 1% of HNO 3 (v/v) were defined. For the determination of the optimum extraction point, a centroid-simplex statistical plan was a pplied, having chosen as the optimum points of extraction for all of the analytes, the follo wing proportions: 70% aqueous phase, 10% oil phase and 20% co-surfactant/surfactant (C/S = 4). After extraction, the metals were determined and the merit figures obtained for the proposed method were: LOD 0,09, 0,01, 0,06, 0,05, 0,6 and 1,5 ?g L -1 for Pb, Cd, Tl, Co, Cu and Ni, re spectively. Line ar ranges of ,1- 2,0 ?g L -1 for Pb, 0,01-2,0 ?g L -1 for Cd, 1,0 - 20 ?g L -1 for Tl, 0,1-5,0 ?g L -1 for Co, 2-200 ?g L -1 and for Cu e Ni 5-200 ?g L -1 were obtained. The enrichment factors obtained ranged between 6 and 19. Recovery testing with the certified sample show ed recovery values (n = 3, certified values) after extraction of 105 and 101, 100 and 104% for Pb, Cd, Cu and Ni respectively. Samples of sweet waters of lake Jiqui, saline water from Potengi river and water produced from the oil industry (PETROBRAS) were spiked and the recovery (n = 3) for the analytes were between 80 and 112% confirming th at the proposed method can be used in the extraction. The proposed method enabled the sepa ration of metals from complex matrices, and with good pre-concentration factor, consistent with the MPV (allowed limits) compared to CONAMA Resolution No. 357/2005 which regulat es the quality of fresh surface water, brackish and saline water in Brazil.

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Winkler, Franziska [Verfasser], Dirk [Akademischer Betreuer] Arnold, Christoph [Akademischer Betreuer] Thomssen und Florian [Akademischer Betreuer] Otto. „Multizentrische Phase II-Studie mit Docetaxel, Oxaliplatin und Capecitabin (TEX) bei Patienten mit inoperablem oder metastasiertem Magenkarzinom (AIO-Studie) / Franziska Winkler. Betreuer: Dirk Arnold ; Christoph Thomssen ; Florian Otto“. Halle, Saale : Universitäts- und Landesbibliothek Sachsen-Anhalt, 2014. http://d-nb.info/1061023249/34.

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Bücher zum Thema "WINNER II"

DeLillo, Don. Mao II. London: Cape, 1991.

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DeLillo, Don. Mao II. New York, N.Y., U.S.A: Viking, 1991.

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DeLillo, Don. Mao II. New York: Viking, 1991.

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DeLillo, Don. Mao II. New York: Penguin Books, 1992.

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DeLillo, Don. Mao II. New York: Penguin USA, Inc., 2009.

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Embracing defeat: Japan in the wake of World War II. New York: W.W. Norton & Co., 1999.

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Dower, John W. Embracing defeat: Japan in the wake of World War II. New York: W.W. Norton & Co., 1999.

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Isaac Asimov. The New Hugo winners, volume II. Riverdale, N.Y: Baen Books, 1992.

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Chadwick, Elizabeth. The winter crown. London: Sphere, 2014.

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M, Waters John. Bloody Winter. Annapolis: United States Naval Institute Press, 1994.

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Buchteile zum Thema "WINNER II"

Volz, Vanessa, Mike Preuss und Mathias Kirk Bonde. „Towards Embodied StarCraft II Winner Prediction“. In Communications in Computer and Information Science, 3–22. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-24337-1_1.

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Shih, Weichung Joe, und Joseph Aisner. „Seamless Phase II/III: Select-the-Winner Design“. In Statistical Design, Monitoring, and Analysis of Clinical Trials, 301–18. 2. Aufl. Boca Raton: Chapman and Hall/CRC, 2021. http://dx.doi.org/10.1201/9781003176527-13.

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Hose, Martin. „R. Klimek-Winter: Andromedatragödien“. In Griechisch-römische Komödie und Tragödie II, 193–98. Stuttgart: J.B. Metzler, 1997. http://dx.doi.org/10.1007/978-3-476-04271-2_14.

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Hunkár, M., und F. Zemankovics. „Studies on the Adaptation of a Winter Wheat Model“. In Systems Analysis and Simulation II, 233–40. New York, NY: Springer US, 1988. http://dx.doi.org/10.1007/978-1-4613-8936-1_48.

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de Zwarte, Ingrid J. J. „Fighting Vulnerability: Child-Feeding Initiatives During the Dutch Hunger Winter“. In Coping with Hunger and Shortage under German Occupation in World War II, 293–310. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-77467-1_15.

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Röhl, John C. G. „The Unicorn in Winter: Kaiser Wilhelm II in Exile in the Netherlands, 1918–1941“. In Monarchy and Exile, 337–51. London: Palgrave Macmillan UK, 2011. http://dx.doi.org/10.1057/9780230321793_16.

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Chances, Ellen. „13. Text and Context II. Dostoevsky’s Notes from Underground Revisited, Plus a Few Thoughts about Winnie-the-Pooh“. In Teaching Nineteenth-Century Russian Literature, herausgegeben von Deborah Martinsen, Cathy Popkin und Irina Reyfman, 186–98. Boston, USA: Academic Studies Press, 2019. http://dx.doi.org/10.1515/9781618113603-017.

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Hill, David. „Winner-Take-All Elections, Part II“. In American Voter Turnout, 93–114. Routledge, 2018. http://dx.doi.org/10.4324/9780429502347-6.

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„PART II. The Long Struggle to Abolish Winner-Take- All“. In Why Do We Still Have the Electoral College?, 57–170. Harvard University Press, 2020. http://dx.doi.org/10.4159/9780674974104-003.

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Vodickov√°, S. „Kinematic Analysis of the Best Throws of the World Elite Discus Throwers and of the Olympic Winner in Decathlon“. In The Impact of Technology on Sport II. Taylor & Francis, 2007. http://dx.doi.org/10.1201/9781439828427.ch87.

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Konferenzberichte zum Thema "WINNER II"

Obaidullah, Kazi, und Yoshikazu Miyanaga. „Efficient algorithm with WINNER II lognormal distributions for MIMO systems“. In 2012 International Symposium on Communications and Information Technologies (ISCIT). IEEE, 2012. http://dx.doi.org/10.1109/iscit.2012.6380889.

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Wu, Baode, Xin Shi und Jiyan Huang. „Analysis of frequency uncertainty on positioning accuracy based on WINNER II Channel“. In 2016 3rd International Conference on Materials Engineering, Manufacturing Technology and Control. Paris, France: Atlantis Press, 2016. http://dx.doi.org/10.2991/icmemtc-16.2016.215.

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Yi, Gong, Wang Shengchu, Zhang Yupeng, Luo Feng und Zhang Lin. „Exploring LTE-V link level performance by geometry enhanced winner II channel model“. In 2018 International Conference on Information Networking (ICOIN). IEEE, 2018. http://dx.doi.org/10.1109/icoin.2018.8343138.

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Couillard, Guillaume, Ghassan Dahman, Gwenael Poitau und Francois Gagnon. „Quantifying range extension capability of MIMO: a simulation study based on WINNER II model“. In 2019 IEEE Canadian Conference of Electrical and Computer Engineering (CCECE). IEEE, 2019. http://dx.doi.org/10.1109/ccece.2019.8861854.

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mary, E. Ilin shantha, und A. Rajesh. „NOMA based Co-operative Relaying under Winner II Channel (B5f) for LTE-A Network“. In 2019 International Conference on Vision Towards Emerging Trends in Communication and Networking (ViTECoN). IEEE, 2019. http://dx.doi.org/10.1109/vitecon.2019.8899436.

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Karttunen, Aki, Jan Jarvelainen, Afroza Khatun und Katsuyuki Haneda. „Radio Propagation Measurements and WINNER II Parameterization for a Shopping Mall at 60 GHz“. In 2015 IEEE 81st Vehicular Technology Conference (VTC Spring). IEEE, 2015. http://dx.doi.org/10.1109/vtcspring.2015.7146037.

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Ibrahim, Ehab Ahmed, Ehab F. Badran und M. R. M. Rizk. „An optimized LTE measurement handover procedure for high speed trains using WINNER II channel model“. In 2016 22nd Asia-Pacific Conference on Communications (APCC). IEEE, 2016. http://dx.doi.org/10.1109/apcc.2016.7581505.

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Mellios, Evangelos, Andrew R. Nix und Geoffrey S. Hilton. „Ray-tracing urban macrocell propagation statistics and comparison with WINNER II/+ measurements and models“. In 2012 Loughborough Antennas & Propagation Conference (LAPC). IEEE, 2012. http://dx.doi.org/10.1109/lapc.2012.6403073.

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Schneider, Christian, Milan Narandzic, Martin Kaske, Gerd Sommerkorn und Reiner S. Thoma. „Large Scale Parameter for the WINNER II Channel Model at 2.53 GHz in Urban Macro Cell“. In 2010 IEEE 71st Vehicular Technology Conference. IEEE, 2010. http://dx.doi.org/10.1109/vetecs.2010.5494089.

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Masoomi, Raoof, und Ali Khadem. „Enhancing LDA-based discrimination of left and right hand motor imagery: Outperforming the winner of BCI Competition II“. In 2015 2nd International Conference on Knowledge-Based Engineering and Innovation (KBEI). IEEE, 2015. http://dx.doi.org/10.1109/kbei.2015.7436077.

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Berichte der Organisationen zum Thema "WINNER II"

O'Brien, K. Rembrances of War: II. Winnipeg, Winnie, and friends. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1990. http://dx.doi.org/10.4095/298370.

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Watts, Benjamin E., Danielle E. Kennedy, Ethan W. Thomas, Andrew P. Bernier und Jared I. Oren. Long-Term Durability of Cold Weather Concrete : Phase II. Engineer Research and Development Center (U.S.), Januar 2021. http://dx.doi.org/10.21079/11681/39579.

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Recent laboratory results confirm that it is possible to protect concrete from freezing solely using chemical admixtures and indicate that the amount of admixture required may be significantly less than previously recommended. Researchers have also verified that admixture-based freeze protection can produce concrete that is durable to winter exposure for a minimum of 20 years, through petrographic examination of core specimens obtained from past field demonstrations. Freeze protection for concrete using chemical admixtures alone has been an area of active research for 3 decades; however, the most recent methodology recommends very high addition rates of accelerating and corrosion inhibiting admixtures, which result in significant challenges, including slump loss, rapid setting, and potentially excessive temperature rise. As part of a laboratory study, researchers systematically varied the dosage of freeze protection admixtures used in concrete cured in a 23 °F environment. Preliminary findings indicate that a 50% reduction in admixture dose maintained adequate freeze protection and resulted in compressive strengths exceeding those of room-temperature controls at 7 and 28 days. The combination of improved handling, reduced cost, and verified durability associated with the use of admixtures for freeze protection makes a compelling case for broader adoption of this technique in winter operations

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