Academic literature on the topic 'R.C. Pro Am'
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Journal articles on the topic "R.C. Pro Am"
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JUDSON, MARK L. I. "Neovochthonius nom. nov. pro Neochthonius Karppinen (Acari, Oribatei, Protoplophoroidea, Heterochthoniidae)." Zootaxa 1992, no. 1 (February 2, 2009): 68. http://dx.doi.org/10.11646/zootaxa.1992.1.5.
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The oribatid genus Neochthonius Karppinen in Golosova & Karppinen, 1984 was erected for a single species of Heterochthoniidae, Neochthonius latisetosus Golosova & Karppinen, 1984, from Sakhalin Island, Russian Far East (Golosova & Karppinen 1984). As noted by Judson (1995), this name is preoccupied by the pseudoscorpion genus Neochthonius Chamberlin, 1929. Although sometimes treated as a synonym of Kewochthonius Chamberlin, 1929 [now a junior synonym of Chthonius C. L. Koch, 1843] in the past, Neochthonius Chamberlin is currently considered to be a valid genus, containing four species from California, U.S.A. (Judson 1990; Muchmore 1996). Despite repeated letters to Dr Karppinen (the first sent in 1991), advising him that Neochthonius Karppinen was preoccupied, no replacement name has been published and I am informed that he has now given up all zoological activity (R. Penttinen, in litt.). In order to remove this homonymy, Neochthonius Karppinen, 1984 is here replaced with Neovochthonius nom. nov. (etymology: Latin prefix ne-, meaning ‘not’, added to the name of the related genus Ovochthonius; gender masculine). Neochthonius latisetosus Golosova & Karppinen, 1984 therefore becomes Neovochthonius latisetosus (Golosova & Karppinen, 1984) comb. nov. No other species have been assigned to this genus.
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Khoshkhatti, Neda, Omid Eini, Davoud Koolivand, Antreas Pogiatzis, John N. Klironomos, and Sepideh Pakpour. "Differential Response of Mycorrhizal Plants to Tomato bushy stunt virus and Tomato mosaic virus Infection." Microorganisms 8, no. 12 (December 19, 2020): 2038. http://dx.doi.org/10.3390/microorganisms8122038.
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Tomato bushy stunt virus (TBSV) and Tomato mosaic virus (ToMV) are important economic pathogens in tomato fields. Rhizoglomus irregulare is a species of arbuscular mycorrhizal (AM) fungus that provides nutrients to host plants. To understand the effect of R. irregulare on the infection by TBSV/ToMV in tomato plants, in a completely randomized design, five treatments, including uninfected control plants without AM fungi (C), uninfected control plants with AM fungi (M) TBSV/ToMV-infected plants without AM fungi (V), TBSV/ToMV-infected plants before mycorrhiza (VM) inoculation, and inoculated plants with mycorrhiza before TBSV/ToMV infection (MV), were studied. Factors including viral RNA accumulation and expression of Pathogenesis Related proteins (PR) coding genes including PR1, PR2, and PR3 in the young leaves were measured. For TBSV, a lower level of virus accumulation and a higher expression of PR genes in MV plants were observed compared to V and VM plants. In contrast, for ToMV, a higher level of virus accumulation and a lower expression of PR genes in MV plants were observed as compared to V and VM plants. These results indicated that mycorrhizal symbiosis reduces or increases the viral accumulation possibly via the regulation of PR genes in tomato plants.
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Hernandez-Ilizaliturri, F. J., H. Kaur, A. Bhinder, S. Olejniczak, J. Knight, and M. S. Czuczman. "Impaired Ca++ mobilization in rituximab-resistant cells (RRCL) is associated with changes in the structure of CD20 antigen, down-regulation of Bax/Bak pro-apoptotic proteins and up-regulation of the endoplasmic reticulum (ER) Ca++ pump protein SERCA-3." Journal of Clinical Oncology 24, no. 18_suppl (June 20, 2006): 2516. http://dx.doi.org/10.1200/jco.2006.24.18_suppl.2516.
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2516 Ca++ mobilization leading to apoptosis has been observed following rituximab biding to CD20 in lymphoma cells. Extending rituximab (R) exposure (e.g. as via R maintenance regimens) could potentially accelerate the emergence of resistance to rituximab. To define the molecular basis for rituximab resistance we developed several RRCL and demonstrated changes in CD20 expression/structure and membrane reorganization following rituximab therapy. Specifically, changes in the N-terminal and the C-terminal region of the internal domain of CD20 were observed in RRCL as determined by Western blotting using various antibodies recognizing epitopes located in the internal (GST77 and 1439) and external domain (B1) of CD20. In our current work we evaluated the effects that CD20 structure/expression changes have upon Ca++ mobilization. Extracellular and intracellular Ca++ mobilization was measured by flow cytometric analysis using FLUO-3 AM (acetoxymethyl ester). Optimization of the Ca++ indicator and calibration curves were performed for each cell line. Raji and RRCL were labeled under optimal conditions with FLUO-3 AM/Pluronic Acid F-127. Subsequently, cells were then re-suspended in HANKS media with or without Ca++ and exposed to rituximab or isotype (10μg/ml) ± human serum (25%). Surface CD20 expression was similar between Raji cells and RRCL. Expression of pro- or anti-apoptotic proteins and Ca++ regulatory proteins SERCA3, SERCA2 and Calreticulin was also determined by western blotting. In vitro exposure of Raji cells to rituximab + HS resulted in Ca++ mobilization even in Ca++ depleted media. Notably, Ca++ mobilization was impaired in RRCL when compared to Raji parental cells. In addition, down-regulation of Bax/Bak and up-regulation of SERCA3 was demonstrated in RRCL. Our data suggest that the acquirement of rituximab resistance is associated with changes in the intracellular domain of CD20 and in Ca++ regulator/pro-apoptotic proteins (SERCA3 and Bax/Bak) resulting in a decrease in the intracellular mobilization of Ca++. No significant financial relationships to disclose.
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Silva, Silvia Helena Modenese-Gorla da, Juliana Domingues Lima, Hugo do Nascimento Bendini, Edson Shigueaki Nomura, and Wilson da Silva Moraes. "Estimativa da área foliar do antúrio com o uso de funções de regressão." Ciência Rural 38, no. 1 (February 2008): 243–46. http://dx.doi.org/10.1590/s0103-84782008000100040.
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O presente trabalho teve como objetivo determinar quais variáveis dimensionais da folha são mais adequadas para utilização na estimativa da área foliar do antúrio (Anthurium andraeanum), cv. "Apalai", por meio de equação de regressão linear, e comparar o desempenho de diferentes funções de regressão obtidas com o uso de aprendizado de máquina (AM). A variável que melhor estimou a área foliar foi o produto das dimensões lineares (comprimento e largura), CxL, sendo a equação proposta Af = 0.9672 *C x L, com coeficiente de determinação (R²) de 0,99. Verificou-se, também, com o uso de AM, que as funções lineares são mais adequadas para a estimação da área foliar dessa espécie vegetal.
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ALENCAR, Jurandyr da Cruz. "FENOLOGIA DE CINCO ESPÉCIES ARBÓREAS TROPICAIS DE SAPOTACEAE CORRELACIONADA A VARIÁVEIS CLIMÁTICAS NA RESERVA DUCKE, MANAUS, AM." Acta Amazonica 24, no. 3-4 (1994): 161–81. http://dx.doi.org/10.1590/1809-43921994243182.
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Estudo fenológico de cinco espécies de Sapotaceae, na Reserva Ducke, no período de 1970 a 1990. Procedeu-se análises multi variadas entre as fases de plena floração, frutos maduros e folhas novas e variáveis climáticas (umidade relativa do ar, precipitação, insolação, evaporação e temperatura média). A plena floração das espécies ocorreu na estação seca, entre os meses de julho e novembro; A periodicidade da floração de Pouteria guianensis Aubl. foi bianual; Radlkoferella macrocarpa(Hubr.) Aubr., padrão anual; Chrysophyllwn oppositum (Ducke) Ducke, anual irregular; Rogala ucuquirana-branca (Aubr. & Pellegr.) W. Rodr., anual alternado; e Rogala ulei (Krause) Aubr., padrão irregular (floresceu em apenas 5 anos). A frutificação das espécies ocorreu na estação chuvosa, entre os meses de dezembro e abril. A periodicidade da frutificação de p. guiaiiensis foi irregular; C. oppositum e R. macrocarpa, annual irregular; R. ucuquirana-branca, anual alternado e R. ulei foi muito irregular, tendo fruti ficado em apenas 2 anos. A irregularidade na frutificação, possivelmente, pode ser explicada pela predação dos frutos por animais, uma vez que são todos camosos e comestíveis. As espécies são perenifólias, com exceção de R. macrocarpa com tendência a ser semi-caducifólia durante a floração. A análise dos componentes principais demonstrou que as variáveis precipitação, umidade relativa e frutos maduros estão referidas à estação chuvosa, em oposição às variáveis insolação, evaporação e temperatura média que definiram a estação seca, onde se situaram a plena floração e folhas novas. E mostrada a Matriz de Correlações Lineares para as variáveis fenológicas e climáticas, e a análise fátorial de correspondência simples indicou que a precipitação teve a maior contribuição (40% da variação total), seguida da insolação (25%), plena floração (13%), folhas no-vas(9%), frutos maduros (8%), evaporação (5%), temperatura média (0%) e umidade relativa (0%).
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Villar Centeno, Juan Carlos, Victor Mauricio Herrera Galindo, Ángel María Chávez-Neira, Luz Ximena Martínez-Gómez, Luis Ángel Villar-Centeno, Elizabeth Ardila, Skarlet Marcell Vásquez, and Martha Vásquez. ""Cardiovascular Health Investigation and Collaboration to Assess the Markers and Outcomes of Chagas disease" (CHICAMOCHA): Concepto, métodos y características de una cohorte de donantes de sangre en Bucaramanga, Colombia." MedUNAB 18, no. 1 (April 12, 2015): 14–26. http://dx.doi.org/10.29375/01237047.2311.
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Introducción: Colombia está expuesta simultáneamente a las enfermedades transmitidas por vectores como la Enfermedad de Chagas (ECHA), así como a la carga creciente de la enfermedad cardiovascular de origen aterosclerótico (ECV). Objetivo: Estudiar a través del ensamblaje de un estudio de cohorte de adultos jóvenes de Bucaramanga, el desarrollo de la ECHA y la ECV. Metodología: Se diseñó un estudio a partir de donantes de sangre con tamización serológica para T. cruzi. Se construyó una base de datos de donantes consecutivos con estatus positivo (T[+]) apareada (en relación 1:4, estratificada por banco y mes de donación) con donantes T[-]. Los participantes fueron clasificados por estado serológico y electrocardiograma y evaluados clínicamente (realizando pruebas adicionales de función cardiovascular a los T[+] y a una muestra aleatoria de T[-]). En los siguientes años se iniciaron ensayos clínicos en los participantes T[+] y mediciones repetidas en los T[-] para estudios de riesgo de ECV. Resultados: De 6,228 donantes (18 a 50 años de edad) registrados en la base (1997-2003), 2,130 donantes de sangre (edad media 36.4 [DE 8.4] años, 64.0% hombres, 73.4% residentes en los estratos 1-3, 486 T[+]) consintieron participar. El protocolo de contacto, seguimiento y recuperación de participantes ha logrado que se obtengan mediciones repetidas en al menos el 80% de los participantes. Conclusiones: CHICAMOCHA constituye un activo de valor social que aumenta las capacidades locales de investigación. Se requieren esfuerzos continuados para ensanchar sus posibilidades de formación de investigadores, g e n e r a c i ó n d e p r o d u c t o s d e c o n o c i m i e n t o y recomendaciones para el sistema de salud.[Villar JC, Herrera VM, Cháves-Neira AM, Martínez-Contreras LX, Villar-Centeno LA, Ardila E, Marcell-Vásquez S, Vásquez SM. “Cardiovascular Health Investigation and Collaboration to Assess the Markers and Outcomes of Chagas disease” (CHICAMOCHA): Concepto, métodos y características de una cohorte de donantes de sangre en Bucaramanga, Colombia. MedUNAB 2015; 18 (1): 14-26]
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Golombek, Sabine, and Michael Blanke. "CO2-Fußabdruck indischer Tafeltrauben auf dem Weg zum deutschen Konsumenten – Analyse und Ansätze zu seiner Verminderung." Erwerbs-Obstbau 62, S1 (July 13, 2020): 109–14. http://dx.doi.org/10.1007/s10341-020-00514-w.
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Zusammenfassung Tafeltrauben sind aus den Supermärkten bei uns nicht mehr wegzudenken. Zum Ende des Winters und Frühlingsbeginn – zu einer Zeit, in der noch keine frischen heimischen Früchte zur Verfügung stehen, ist Indien der Hauptlieferant. Ziel dieses Beitrages ist es, den Weg dieser Tafeltrauben aus Indien nach Bonn zurückzuverfolgen und seinen ökologischen CO2-Fußabdruck im Vergleich zu südafrikanischen Trauben zu ermitteln sowie Ansätze zu ihrer Minderung aufzuzeigen. Nach Herunterkühlen, Verpacken in PET Schalen und Transport der Tafeltrauben aus dem Hauptanbaugebiet Maharashtra in Mittelindien über 400 km nach Mumbai werden sie per Reefer-Containerschiff bei 0 °C über ca. 11.700 km (6317 Seemeilen) durch den Suezkanal nach Antwerpen verschifft, von dort per Kühl-Lkw ca. 235 km über das jeweilige Verteilungszentrum zum LEH gefahren, wo der Konsument sie mit seinem PKW erwirbt. Den größten Anteil am CO2-Fußabdruck vom Feld bis zum Verbraucher (B2C) von ca. 333 (297–379) g CO2eq/500 g-Schale Trauben hatte der Schiffstransport mit 108 (89–131) g CO2, gefolgt von der PET-Schale mit Deckel (mit Anlieferung innerhalb Indiens) mit ca. 66 g CO2eq/Schale und der Einkaufsfahrt des deutschen Verbrauchers (20 kg, 5 km) und damit Mitverantwortung des Konsumenten von ebenfalls ca. 66 g CO2eq/500 g Trauben, einem Einsparpotenzial neben der Verwendung von R‑PET Schalen, Folienbeuteln statt PET Schalen oder Kartons. Aufgrund des vergleichbaren Seewegs lag der CO2-Fußabdruck von Tafeltrauben aus Indien mit 333 g CO2eq in der gleichen Größenordnung wie Tafeltrauben aus Südafrika mit ca. 11.400 km (6155 Seemeilen) auf dem Reefer-Containerschiff und 309 (260–340) g CO2eq pro 500 g Schale.
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Lopez Preciado, Patricia. "EXPERIENCIAS DE COMUNICACIÓN y DESARROLLO QUE INCIDEN EN LA ESFERA PÚBLICA DE LA REGIÓN ANDINA COLOMBIANA." Desbordes. Revista de Investigaciones. Escuela de Ciencias sociales, artes y humanidades - UNAD 1 (May 2, 2010): 53. http://dx.doi.org/10.22490/25394150.1361.
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<p>Presentación de los avances de investigación del proyecto <em>Exp</em><em>e</em><em>riencias d</em><em>e </em>comun'cccíón y <em>d</em><em>e</em><em>sa</em><em>r</em><em>r</em><em>o</em><em>ll</em><em>o sob</em><em>r</em><em>e med</em><em>i</em><em>o am</em><em>b</em><em>iente </em>en la <em>región An</em><em>d</em><em>i</em><em>na d</em><em>e </em><em>C</em><em>o</em><em>lombia </em>realizado por tres universidades colombianas "desde el análisis realizado a los estudios de caso que evidencian la incidencia de las comunidades en las políticas públicas locales y regionales y que son movilizadas desde los medios de comunicación.</p>
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Albuquerque, Natalia Ramos, and Deivison Carvalho Molinari. "Caracterização da Cobertura Vegetal no Alto Curso da Bacia do Igarapé do Mindu - Manaus (AM)." Revista Brasileira de Geografia Física 13, no. 1 (April 6, 2020): 406. http://dx.doi.org/10.26848/rbgf.v13.1.p406-422.
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O processo urbano acelerado ao longo dos anos dentro da cidade de Manaus - AM acabou ocasionando substituição parcial da cobertura vegetal por ocupações irregulares. Deste modo, o objetivo deste estudo é analisar o tipo de cobertura vegetal presente no alto curso da bacia hidrográfica do igarapé do Mindu, localizado entre a zona norte e leste da área urbana de Manaus - Amazonas. A metodologia do trabalho baseou-se em três etapas: pré-campo realizada mediante técnicas de geoprocessamento para identificação da área de estudo via Qgis, monitoramento do trabalho de campo registrada por fotografias com auxílio do GPS (Global Position System), uso de VANT para adquirir imagens aéreas de alta resolução espacial, e o pós-campo resultando no processamentos das imagens e análise dos dados. Os resultados encontrados demostram concentração de espécies concentradas ao norte da bacia procurando identificar a distribuição e caracterização das espécies vegetais do tipo: Unidade de Conservação, Áreas Verdes, Fragmento Florestal, Área de Proteção Permanente (APP), Área de Proteção Ambiental (APA) e Corredor Ecológico.Characterization of Vegetation Coverage in the Upper Course of the Igarapé do Mindu Basin - Manaus (AM)A B S T R A C TThe accelerated urban process over the years within the city of Manaus - AM eventually led to partial replacement of vegetation cover by irregular occupations. Thus, the aim of this study is to analyze the type of vegetation cover present in the upper reaches of the Mindu stream, located between the north and east of the urban area of Manaus - Amazonas. The methodology of the work was based on three steps: pre-field carried out by geoprocessing techniques to identify the study area via Qgis, fieldwork monitoring recorded by photographs with the aid of GPS (Global Position System), use of UAV for acquire high spatial resolution aerial images, and the postfield resulting in image processing and data analysis. The results show a concentration of species concentrated to the north of the basin, seeking to identify the distribution and characterization of plant species such as: Conservation Unit, Green Areas, Forest Fragment, Permanent Protection Area (APP), Environmental Protection Area (APA) and Ecological corridor.Keywords: radiation, net radiation, photosynthetically active radiation, Caatinga, dry.
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Alharthi, T. N., and M. A. Elsafty. "Discovery of Similarity and Dissimilarity." Journal of Mathematics Research 8, no. 6 (November 25, 2016): 105. http://dx.doi.org/10.5539/jmr.v8n6p105.
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<p><span lang="EN-US">The<span> aim</span> <span>o</span>f this pap<span>e</span>r is to <span>i</span>ntrodu<span>c</span>esome<span> a</span>ppl<span>ic</span><span>a</span>t<span>i</span>ons on si<span>m</span>i<span>l</span><span>a</span>rities <span>a</span>nd dis<span>s</span>i<span>m</span>i<span>l</span><span>a</span>rities. Usingof asi<span>m</span>pl<span>i</span>fi<span>e</span>d d<span>i</span><span>a</span><span>g</span><span>r</span><span>a</span>m andtabl<span>e</span>s to present the information about thes<span>i</span>m<span>i</span>la<span>r</span>i<span>t</span>ies <span>a</span>nd dis<span>s</span>i<span>m</span>i<span>l</span><span>a</span>rities <span>acc</span>ount pro<span>ce</span>ss and o<span>r</span>g<span>a</span>ni<span>z</span><span>a</span>t<span>i</span>on <span>a</span><span>r</span>e<span> a</span>lso e<span>a</span><span>s</span>y<span>a</span>nd we<span>ca</span>lcu<span>l</span><span>a</span>ted thetopo<span>l</span>o<span>g</span>y b<span>a</span>s<span>e</span>d on the simi<span>l</span><span>a</span>ri<span>t</span>y<span>a</span>nd topo<span>l</span>o<span>g</span>yvie<span>w</span>s of thed<span>i</span>ss<span>i</span>m<span>i</span>la<span>r</span>i<span>t</span><span>y</span>.<span>F</span>orinfo<span>r</span><span>m</span><span>a</span>t<span>i</span>on <span>s</span><span>y</span>stem whose v<span>a</span>lues <span>a</span><span>r</span>enume<span>r</span>ic,am<span>e</span>thod of <span>c</span>lassifi<span>ca</span>t<span>i</span>on is sug<span>g</span><span>e</span>sted.This <span>m</span><span>e</span>thod <span>i</span>s bas<span>e</span>d on <span>c</span>onstru<span>c</span>t<span>i</span>ng<span>n</span><span>e</span><span>i</span><span>g</span>hbor<span>h</span><span>o</span>od r<span>e</span>lation on <span>t</span>heunive<span>r</span><span>s</span>eof the<span>r</span><span>e</span>sul<span>t</span><span>e</span>d <span>c</span>lassifi<span>c</span><span>a</span>t<span>i</span>on not <span>g</span><span>e</span><span>n</span><span>e</span>r<span>a</span>l<span>l</span>ya p<span>a</span>rtit<span>i</span>on f<span>o</span>r theunive<span>r</span>s<span>e</span>.</span></p>
Dissertations / Theses on the topic "R.C. Pro Am"
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Šumaj, Boris. "Návrh informačního systému pro správu nemovitostí pro Dolfin AM, s. r. o." Master's thesis, Vysoké učení technické v Brně. Fakulta podnikatelská, 2015. http://www.nusl.cz/ntk/nusl-225116.
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Content of my diploma thesis is to set light to basics of database information systems. This thesis provides a summary of information system architectures. These information systems are analysed with focus on their effectiveness and efficient use in the enterprise oriented on real estate management. After analyzing these IS architectu-res, analysis of the selected company´s IS and company as such, follows the creation of design of an information system according to the estabilished facts, specifications and requirements for the particular company.
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Uherek, Jan. "Kondenzační parní turbína pro pohon napájecího čerpadla." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-241704.
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This diploma thesis focuses on designing impulse stage steam turbine to be used as the feed pump drive. I consecutively carried out thermodynamic calculation, seals and bearings layouts, with the aim to determine the steam mass flow through the turbine. Furthermore, I conducted turbine blade toughness check-ups, determined the rotor critical rotational speed, check-up rotor critical place (bearing pin) for torsion, and created a clutch screws design. The final part of this thesis pursues the other operating states of the turbine. This thesis is amended by a mechanical drawing of the turbine transection.
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Žůrek, Dalibor. "Metody pro analýzu vlastností přenosových vedení." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2012. http://www.nusl.cz/ntk/nusl-219854.
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This work focuses on a search of available literature on the theory of transmission lines and verify the possibility of simulation processes on these lines using a suitable simulation program. Initially, for the introduction to the parameters and the phenomenon that characterize the line and are important for understanding the issue. These parameters are then measured and compared with traces from the simulation in program PSpice. In another part of the work, the reader is familiar with the basics of reflectometry and fault detection capabilities on transmission lines with the basic reflectometry methods TDR and FDR, as well as with other methods of OTDR, MSR, and PD-FDR. For the TDR, FDR and MSR methods were made experimental measurements with a view to determining the position of the various types of faults on the tested leadership.
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Slavotínek, Jan. "Řídící jednotka pro turboventilátorový motor TFE731." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2016. http://www.nusl.cz/ntk/nusl-240917.
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This thesis is classified as an internal experimental project whose aim is to design HW and low level SW of simplified version of the controller for TFE731 turbofan engine according to defined requirements. The expected outputs in addition to the system design is also information about possible technical problems and difficulties arising during the analysis and development of the system. The work covers a brief look into the history of aviation and avionics, theoretical analysis turbofan engine, analysis of measured and controlled variables. Based on the requirements analysis and I/O values is made circuit design (HW) and design of the low level control software.
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Čermák, Josef. "Modelování rušení pro xDSL." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2008. http://www.nusl.cz/ntk/nusl-217281.
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This work is focused on the subject of the interference modelling for xDSL technologies. First, the xDSL technologies are explained. Following is the presentation and description of the different kinds of the xDSL technologies. The next part deals with the basic parameters of metallic cable lines – especially the primary and secondary parameters. Nowadays wider bandwidths are used for the achievement of higher data transmission rates. During a higher frequency signal transmission a more intensive line attenuation appears. To identify the transfer characteristics of the lines while using an xDSL system, mathematic models of transmission lines are applied. That is why these mathematic models are dealt with in the next chapter. At the end of this section the mathematic models are compared using the modular and phase characteristics. The main aim of the work is to describe the different impacts which influence the efficiency of the xDSL systems. First, the causes interfering from the inside of the cable are deeply explained: Near End Crosstalk (NEXT), Far End Crosstalk (FEXT), Additive White Gaussian Noise (AWGN). Following is the explanation of the external interfering impacts: Radio Frequency Interference (RFI) and Impulse Noise. The next goal of this thesis is a design of a workstation for the tests of spectral features and the efficiency of the xDSL systems. The work also presents a designed GUI application and its description. The GUI application is an instrument for the choice or data entry of the final interference. The last chapter describes a realization of a measurement and shows the measured characteristics which were recorded on the ADSL tester and oscilloscope.
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Funk, Julia Franziska [Verfasser], C. [Gutachter] Perka, M. J. [Gutachter] Raschke, and R. [Gutachter] Gradinger. "Die Wirkung von systemisch appliziertem rekombinantem speziesspezifischem Wachstumshormon auf den Knochenumbau am Achsenskelett / Julia Franziska Funk ; Gutachter: C. Perka, M. J. Raschke, R. Gradinger." Berlin : Humboldt-Universität zu Berlin, 2004. http://d-nb.info/1207636312/34.
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Kohlmeyer, Jens Christoph [Verfasser], C. [Akademischer Betreuer] Strauss, M. [Akademischer Betreuer] Kornhuber, and R. [Akademischer Betreuer] Benecke. "Somatosensibel evozierte Potentiale am Menschen nach elektrischer Reizung des Nervus suralis : Einfluss der Reizwiederholungsrate und des Interstimulusintervalls bei Zugreizen / Jens Christoph Kohlmeyer. Betreuer: C. Strauss ; M. Kornhuber ; R. Benecke." Halle, Saale : Universitäts- und Landesbibliothek Sachsen-Anhalt, 2010. http://d-nb.info/1025133501/34.
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Zumbruch, Peter Wilhelm. "Untersuchung zur Produktion von Pionen und Pion-Pion-Korrelationen in C + C - Reaktionen am HADES-Detektor bei einer Strahlenergie von 2 GeV pro Nukleon." Phd thesis, 2005. https://tuprints.ulb.tu-darmstadt.de/580/1/PeterZumbruch_Dissertation-pdf4.0.pdf.
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Am Dielektronenspektrometer HADES (High Acceptance Di-Electron Spectrometer) am Schwerionensynchrotron SIS der Gesellschaft für Schwerionenforschung (GSI) in Darmstadt wurden Untersuchungen zur Produktion von geladenen Pionen und darauf aufbauend von Pion-Pion-Korrelationen durchgeführt. Im Rahmen dieser Arbeit wurde das Stoßsystem C+C bei einer kinetischen Strahlenergie von 2 GeV pro Nukleon betrachtet. Obwohl der HADES-Detektor primär für die Rekonstruktion von seltenen Zerfällen in den e+e- Kanal entwickelt wurde, bietet die damit einhergehende großflächige geometrische Akzeptanz und Ratenkapabilität die Möglichkeit Untersuchungen zur Hadronen- und Hadronenpaarproduktion durchzuführen. Für die geladenen Pionen wurden die Produktionsmultiplizitäten sowohl integral als auch differentiell nach der Rapidität und dem transversalen Impuls ermittelt. Die daraus abgeleiteten Spektren als Funktion der transversalen Masse wurden mittels der Summe zweier Maxwell-Boltzmann-Verteilungen zur Ermittlung der inversen Steigungsparameter angepasst. Die Ergebnisse dieser Pionenanalyse stimmen im Rahmen der Fehler im Vergleich mit anderen Experimenten überein. Aufbauend auf der Identifikation der Pionen wurde im Rahmen einer Pion-Pion-Paaranalyse zum ersten Mal im betrachteten Stoßsystem C+C bei einer Strahlenergie von 2 GeV pro Nukleon die Produktionsmultiplizität des K0S-Mesons über den Zerfallskanal π+π-. Aufgrund der Eigenschaften des K0S zerfällt dieses an einem sekundären Vertex abseits des primären Wechselwirkungspunktes. Auf Basis dieser Zerfallscharakteristik wurden Methoden zur Diskriminierung gegenüber weiteren Pion-Pion-Quellen entwickelt. Ein Vergleich der K0S-Multiplizität mit der vom KaoS Experiment ermittelten Multiplizität des geladenen K+ Mesons liefert Unterschiede, welche jedoch unter der Annahme einer anistropen polaren Winkelverteilung im Rahmen der Fehler nicht signifikant sind. Weitergehend wurde im Rahmen dieser Arbeit die mögliche Rekonstruktion des ρ0 über den Zerfallskanal ρ0 → π+π- im Stoßsystem C+C und einer kinetischen Strahlenergie von 2 GeV pro Nukleon untersucht. Zusammenfassend zeigt die Arbeit die prinzipiellen Rekonstruktionsmöglichkeiten von Hadronen, speziell den geladenen Pionen, π+ und π-, sowie von Pion-Pion-Korrelationen, K0S → π+π-, die am Dielektronenspektrometer HADES zusätzlich und komplementär zum Leptonenprogramm bestehen.
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Zumbruch, Peter W. [Verfasser]. "Untersuchung zur Produktion von Pionen und Pion-Pion-Korrelationen in C+C-Reaktionen am HADES-Detektor bei einer Strahlenergie von 2 GeV pro Nukleon / von Peter W. Zumbruch." 2005. http://d-nb.info/97561326X/34.
Full textBooks on the topic "R.C. Pro Am"
1
I am in fact a hobbit: An introduction to the life and work of J.R.R. Tolkien. Macon, GA: Mercer University Press, 2004.
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R, Christopher Joe, ed. I am in fact a hobbit: An introduction to the life and works of J.R.R. Tolkien. Macon, Ga: Mercer University Press, 2003.
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Inc, Game Counselor. Game Counselor's Answer Book for Nintendo Players. Redmond, USA: Microsoft Pr, 1991.
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McGlashan, Alastair. The History of the Holy Servants of the Lord Siva: A Translation of the Periya Purāṇam of Cēkkiḻār. Trafford Publishing, 2006.
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Christopher, Joe R., and Perry C. Bramlett. I Am in Fact a Hobbit: An Introduction to the Life and Works of J.R.R. Tolkien. Mercer University Press, 2002.
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Digitale Schraubentechnik. VDI Verlag, 2019. http://dx.doi.org/10.51202/9783181023471.
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Dieser VDI-Bericht ist ausschließlich als PDF-Datei erschienen! Sie möchten gerne erfahren, welche Themen auf der 8. VDI/VDE-Fachtagung in Frankfurt am Main präsentiert wurden? Inhalt Keynote Wahrer Fortschritt liegt jenseits aller Standards 1 J. R. Schmid, Design Tech, Ammerbuch Grundlagen Einführung in die Grundlagen zu technischen Verschraubungen 3 C. Bye, Private Hochschule für Wirtschaft und Technik, Standort Diepholz Schwingungsüberlagerte Schraubwerkzeuge – ein Ansatz zur Steigerung der Vorspannkraftkonstanz 13 M. Merten, B. Werthe, Volkswagen AG Nutzfahrzeuge, Hannover; U. Füssel, Professur für Fügetechnik und Montage, Technische Universität Dresden Werkerführung bei der Schraubmontage in der industriellen Produktion – Herausforderungen der modernen Schraubmontage im I4.0 Zeitalter 29 H. J. Reiter, Product Management Joining Technology Bosch Rexroth, Murrhardt Fachkompetenzen Schraubmontage im Lichte der IATF 16949 – Chance und Herausforderung 37 M. Fischer, S...
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Inc, Game Counsellor, ed. The Game Counsellor's answer book for Nintendo Game players: Hundredsof questions -and answers - about more than 250 popular Nintendo Games. Redmond, Washington: Microsoft Press, 1991.
Find full textBook chapters on the topic "R.C. Pro Am"
1
Kim, Heidi. "Appendix C: Memorandum for Col. Karl R. Bendetsen re Pro-Japanese Activities (excerpted)." In Taken from the Paradise Isle: The Hoshida Family Story, 273. University Press of Colorado, 2015. http://dx.doi.org/10.5876/9781607323440.c026.
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Lambert, Tristan H. "C–O Ring Formation." In Organic Synthesis. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780190646165.003.0044.
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The enantioselective bromocyclization of dicarbonyl 1 to form dihydrofuran 3 using thiocarbamate catalyst 2 was developed (Angew. Chem. Int. Ed. 2013, 52, 8597) by Ying-Yeung Yeung at the National University of Singapore. Access to dihydrofuran 5 from the cyclic boronic acid 4 and salicylaldehyde via a morpholine-mediated Petasis borono-Mannich reaction was reported (Org. Lett. 2013, 15, 5944) by Xian-Jin Yang at East China University of Science and Technology and Jun Yang at the Shanghai Institute of Organic Chemistry. Chiral phosphoric acid 7 was shown (Angew. Chem. Int. Ed. 2013, 52, 13593) by Jianwei Sun at the Hong Kong University of Science and Technology to catalyze the enantioselective acetalization of diol 6 to form tetrahydrofuran 8 with high stereoselectivity. Jan Deska at the University of Cologne reported (Org. Lett. 2013, 15, 5998) the conversion of glutarate ether 9 to enantiopure tetrahydrofuranone 10 by way of an enzymatic desymmetrization/oxonium ylide rearrangement sequence. Perali Ramu Sridhar at the University of Hyderabad demonstrated (Org. Lett. 2013, 15, 4474) the ring-contraction of spirocyclopropane tetrahydropyran 11 to produce tetrahydrofuran 12. Michael A. Kerr at the University of Western Ontario reported (Org. Lett. 2013, 15, 4838) that cyclopropane hemimalonate 13 underwent conversion to vinylbutanolide 14 in the presence of LiCl and Me₃N•HCl under microwave irradiation. Eric M. Ferreira at Colorado State University developed (J. Am. Chem. Soc. 2013, 135, 17266) the platinum-catalyzed bisheterocyclization of alkyne diol 15 to furnish the bisheterocycle 16. Chiral sulfur ylides such as 17, which can be synthesized easily and cheaply, were shown (J. Am. Chem. Soc. 2013, 135, 11951) by Eoghan M. McGarrigle at the University of Bristol and University College Dublin and Varinder K. Aggarwal at the University of Bristol to stereoselectively epoxidize a variety of aldehydes, as exemplified by 18. The amine 20-catalyzed tandem heteroconjugate addition/Michael reaction of quinol 19 and cinnamaldehyde to produce bicycle 21 with very high ee was reported (Chem. Sci. 2013, 4, 2828) by Jeffrey S. Johnson at the University of North Carolina, Chapel Hill. Quinol ether 22 underwent facile photorearrangement–cycloaddition to 23 under irradiation, as reported (J. Am. Chem. Soc. 2013, 135, 17978) by John A. Porco, Jr. at Boston University and Corey R. J. Stephenson, now at the University of Michigan.
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Taber, Douglass F. "Organocatalyzed C–C Ring Construction: The Mihovilovic Synthesis of Piperenol B." In Organic Synthesis. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780190646165.003.0072.
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M. Kevin Brown of Indiana University prepared (J. Am. Chem. Soc. 2015, 137, 3482) the cyclobutane 3 by the organocatalyzed addition of 2 to the alkene 1. Karl Anker Jørgensen of Aarhus University assembled (J. Am. Chem. Soc. 2015, 137, 1685) the complex cyclobutane 7 by the addition of 5 to the acceptor 4, followed by condensation with the phosphorane 6. Zhi Li of the National University of Singapore balanced (ACS Catal. 2015, 5, 51) three enzymes to effect enantioselective opening of the epoxide 8 followed by air oxidation to 9. Gang Zhao of the Shanghai Institute of Organic Chemistry and Zhong Li of the East China University of Science and Technology added (Org. Lett. 2015, 17, 688) 10 to 11 to give 12 in high ee. Akkattu T. Biju of the National Chemical Laboratory combined (Chem. Commun. 2015, 51, 9559) 13 with 14 to give the β-lactone 15. Paul Ha-Yeon Cheong of Oregon State University and Karl A. Scheidt of Northwestern University reported (Chem. Commun. 2015, 51, 2690) related results. Dieter Enders of RWTH Aachen University constructed (Chem. Eur. J. 2015, 21, 1004) the complex cyclopentane 20 by the controlled combination of 16, 17, and 18, followed by addition of the phosphorane 19. Derek R. Boyd and Paul J. Stevenson of Queen’s University Belfast showed (J. Org. Chem. 2015, 80, 3429) that the product from the microbial oxidation of 21 could be protected as the acetonide 22. Ignacio Carrera of the Universidad de la República described (Org. Lett. 2015, 17, 684) the related oxidation of benzyl azide (not illustrated). Manfred T. Reetz of the Max-Planck-Institut für Kohlenforschung and the Philipps-Universität Marburg found (Angew. Chem. Int. Ed. 2014, 53, 8659) that cytochrome P450 could oxidize the cyclohexane 23 to the cyclohexanol 24. F. Dean Toste of the University of California, Berkeley aminated (J. Am. Chem. Soc. 2015, 137, 3205) the ketone 25 with 26 to give 27. Benjamin List, also of the Max-Planck-Institut für Kohlenforschung, reported (Synlett 2015, 26, 1413) a parallel investigation. Philip Kraft of Givaudan Schweiz AG and Professor List added (Angew. Chem. Int. Ed. 2015, 54, 1960) 28 to 29 to give 30 in high ee.
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Taber, Douglass F. "C-H Functionalization: The Chen Synthesis of Celogentin C." In Organic Synthesis. Oxford University Press, 2013. http://dx.doi.org/10.1093/oso/9780199965724.003.0019.
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Christian R. Goldsmith of Auburn University developed (Synlett 2010, 1377) a method for radical chlorination of 1 using commercial peracetic acid. Noritaka Mizuno of the University of Tokyo devised (Nat. Chem. 2010, 2, 478) a bulky polyoxometalate that mediated the selective hydroxylation of the secondary C-H bonds of 3. Christina White of the University of Illinois showed (Science 2010, 327, 566) that Fe-mediated C-H oxidation is sensitive to the expected electronic effects, so that 5 was selectively oxidized to 6. Irena S. Akhrem of the A. N. Nesmeyanov Institute of Organoelement Compounds established (Tetrahedron Lett. 2010, 51, 259) that a C-H bond of 7 could be efficiently converted to a C-C bond. Melanie S. Sanford of the University of Michigan extended (Organic Lett. 2010, 12, 532) directed palladation to 9, effecting selective acetoxylation of the methyl group. Herman O. Sintim of the University of Maryland observed (Angew. Chem. Int. Ed. 2010, 49, 3964) that the O-linked diazoamide 11 selectively cyclized to 12. The corresponding C-linked diazoamide gave only five-membered ring formation. Yasushi Obora and Yasutaka Ishii of Kansai University devised (Organic Lett. 2010, 12, 1372) conditions for the selective allylic amination of 13. Marvin J. Miller of the University of Notre Dame developed (Tetrahedron Lett. 2010, 51, 328) the nitrosoisoxazole 16 for the allylic amination of 15. David A. Powell of Merck Frosst established (J. Org. Chem. 2010, 75, 2726) a protocol for the selective amination of the aromatic methyl group of 18. Ying-Yeung Yeung of the National University of Singapore effected (Organic Lett. 2010, 12, 2128) selective allylic oxidation of 21 with a hypervalent iodine reagent. Gullapalli Kumaraswamy of the Indian Institute of Chemical Technology, Hyderabad, allylated (J. Org. Chem. 2010, 75, 3916) an amine 23 using commercial aqueous t -BuOOH. Corey R. J. Stephenson of Boston University used (J. Am. Chem. Soc. 2010, 132, 1464) visible light to activate 26 for homologation to 27. In the course of a synthesis of the bicyclic nonribosomal peptide celogentin C, isolated from the seeds of the plumed cockscomb Celosia argentea, Gong Chen of Pennsylvania State University took advantage (Angew. Chem. Int. Ed. 2010, 49, 958) of Pd activation to effect specific coupling of the iodoindole 29 with the leucine derivative 28. On a 4-gram scale, this coupling proceeded in 85% yield.
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Taber, Douglass F. "C–H Functionalization: The Snyder Synthesis of (+)-Scholarisine A." In Organic Synthesis. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780190646165.003.0020.
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Thomas R. Hoye of the University of Minnesota devised (Nature 2013, 501, 531) the reagent 2, that cyclized to a benzyne that in turn dehydrogenated the alkane 1 to the alkene 3, and 4. Abigail G. Doyle of Princeton University developed (J. Am. Chem. Soc. 2013, 135, 12990) a reagent combination for the allylic fluorination of a terminal alkene 5 to the branched product 6. Yan Zhang and Jianbo Wang of Peking University oxidized (Angew. Chem. Int. Ed. 2013, 52, 10573) the methyl group of 7 to give the nitrile 8. Hanmin Huang of the Lanzhou Institute of Chemical Physics found (Org. Lett. 2013, 15, 3370) conditions for the carbonylation of the benzylic site of 9, leading to coupling with 10 to form the amide 11. Yu Rao of Tsinghua University effected (Angew. Chem. Int. Ed. 2013, 52, 13606) the direct methoxylation of 12, to give 13. Pd-mediated methoxylation had previously been described (Chem. Sci. 2013, 4, 4187) by Bing-Feng Shi of Zhejiang University. M. Christina White of the University of Illinois, Urbana found (J. Am. Chem. Soc. 2013, 135, 14052) that with variant ligands on the Fe catalyst, the oxidation of 14 could be directed selectively to either 15 or 16. C–H bonds can also be converted to C–N bonds. Sukbok Chang of KAIST oxidized (J. Am. Chem. Soc. 2013, 135, 12861) the unsaturated ester 17 with 18 to form the enamide 18. Gong Chen of Pennsylvania State University cyclized (Angew. Chem. Int. Ed. 2013, 52, 11124) the amide 20 to the γ-lactam 21. Professor Shi reported (Angew. Chem. Int. Ed. 2013, 52, 13588) a related approach to β-lactams. Ethers are easily oxidized. Taking advantage of this, Yun Liang of Hunan Normal University coupled (Synthesis 2013, 45, 3137) the bromoalkyne 23 with tetrahydrofuran 22 to give 24. Guangbin Dong of the University of Texas, Austin devised (J. Am. Chem. Soc. 2013, 135, 17747) a protocol for the β-arylation of ketones, including the preparation of 27 by the coupling of 25 with 26.
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Taber, Douglass F. "Functionalization and Homologation of C-H Bonds." In Organic Synthesis. Oxford University Press, 2013. http://dx.doi.org/10.1093/oso/9780199965724.003.0020.
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Justin Du Bois of Stanford University developed (J. Am. Chem. Soc. 2010, 132, 10202) a Ru catalyst for the stereoretentive hydroxylation of 1 to 2. John T. Groves of Princeton University effected (J. Am. Chem. Soc. 2010, 132, 12847) equatorial chlorination of the test substrate 3. Kenneth M. Nicholas of the University of Oklahoma found (J. Org. Chem. 2010, 75, 7644) that I2 catalyzed the amination of 5. Thorsten Bach of the Technische Universität München established (Org. Lett. 2010, 12, 3690) that the amination of 7 proceeded with significant diastereoselectivity. Phil S. Baran of Scripps/La Jolla compiled (Synlett 2010, 1733) an overview of the development of C-H oxidation. Tethering can improve the selectivity of C-H functionalization. X. Peter Zhang of the University of South Florida devised (Angew. Chem. Int. Ed. 2010, 49, 10192) a Co catalyst for the cyclization of 9 to 10. Teck-Peng Loh of Nanyang Technological University established (Angew. Chem. Int. Ed. 2010, 49, 8417) conditions for the oxidation of 11 to 12. Jin-Quan Yu, also of Scripps/La Jolla, effected (J. Am. Chem. Soc. 2010, 132, 17378) carbonylation of methyl C-H of 13 to give 14. Sunggak Kim, now also at Nanyang Technological University, established (Synlett 2010, 1647) conditions for the free-radical homologation of 15 to 17. Gong Chen of Pennsylvania State University extended (Org. Lett. 2010, 12, 3414) his work on remote Pd-mediated activation by cyclizing 18 to 19. Many schemes have been developed in recent years for the oxidation of substrates to reactive electrophiles. Gonghua Song of the East China University of Science and Technology and Chao-Jun Li of McGill University reported (Synlett 2010, 2002) Fe nanoparticles for the oxidative coupling of 20 with 21. Zhi-Zhen Huang of Nanjing University found (Org. Lett. 2010, 12, 5214) that protonated pyrrolidine 25 was important for mediating the site-selective coupling of 24 with 23. Y. Venkateswarlu of the Indian Institute of Chemical Technology, Hyderabad, was even able (Tetrahedron Lett. 2010, 51, 4898) to effect coupling with a cyclic alkene 28. AB3217-A 32, isolated in 1992, was shown to have marked activity against two spotted spider mites. Christopher R. A. Godfrey of Syngenta Crop Protection, Münchwilen, prepared (Synlett 2010, 2721) 32 from commercial anisomycin 30a. The key step in the synthesis was the oxidative cyclization of 30b to 31.
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Taber, Douglass F. "C-N Ring Construction: The Zakarian Synthesis of (-)-Rhazinilam." In Organic Synthesis. Oxford University Press, 2013. http://dx.doi.org/10.1093/oso/9780199965724.003.0055.
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William D. Wulff of Michigan State University developed (J. Am. Chem. Soc. 2010, 132, 13100; Org. Lett. 2010, 12, 4908) a general enantio- and diastereocontrolled route from an imine 1 to the aziridine 3. Craig W. Lindsley of Vanderbilt University established (Org. Lett. 2010, 12, 3276) a complementary approach (not illustrated). Joseph P. Konopelski of the University of California, Santa Cruz, designed (J. Am. Chem. Soc. 2010, 132, 11379) a practical and inexpensive flow apparatus for the cyclization of 4 to the β-lactam 5. Manas K. Ghorai of the Indian Institute of Technology, Kanpur, showed (J. Org. Chem. 2010, 75, 6173) that an aziridine 6 could be opened with malonate to give the γ-lactam 8. John P. Wolfe of the University of Michigan devised (J. Am. Chem. Soc. 2010, 132, 12157) a Pd catalyst for the enantioselective cyclization of 9 to 11. Sherry R. Chemler of the State University of New York at Buffalo observed (Angew. Chem. Int. Ed. 2010, 49, 6365) that the cyclization of 12 to 14 proceeded with high diastereoselectivity. Glenn M. Sammis of the University of British Columbia devised (Synlett 2010, 3035) conditions for the radical cyclization of 15 to 16. Jeffrey S. Johnson of the University of North Carolina observed (J. Am. Chem. Soc. 2010, 132, 9688) that the opening of racemic 17 with 18 could be effected with high ee. The residual 17 was highly enriched in the nonreactive enantiomer. Kevin D. Moeller of Washington University found (Org. Lett . 2010, 12, 5174) that the n -BuLi catalyzed cyclization of 20 set the quaternary center of 21 with high relative control. Yujiro Hayashi of the Tokyo University of Science, using the diphenyl prolinol TMS ether that he developed as an organocatalyst, designed (Org. Lett. 2010, 12, 4588) the sequential four-component coupling of 22, 23, benzaldehyde imine, and allyl silane to give 24 with high relative and absolute stereocontrol. Derrick L. J. Clive of the University of Alberta showed (J. Org. Chem. 2010, 75, 5223) that 25, prepared in enantiomerically pure form from serine, participated smoothly in the Claisen rearrangement, to deliver 27.
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Taber, Douglass. "New Methods for C-N Ring Construction." In Organic Synthesis. Oxford University Press, 2011. http://dx.doi.org/10.1093/oso/9780199764549.003.0055.
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Chaozhong Li of the Shanghai Institute of Organic Chemistry demonstrated (Organic Lett. 2008, 10, 4037) facile and selective Cu-catalyzed β-lactam formation, converting 1 to 2. Paul Helquist of the University of Notre Dame devised (Organic Lett. 2008, 10, 3903) an effective catalyst for intramolecular alkyne hydroamination, converting 3 into the imine 4. Six-membered ring construction worked well also. Jon T. Njardarson of Cornell University found (Organic Lett. 2008, 10, 5023) a Cu catalyst for the rearrangement of alkenyl aziridines such as 5 to the pyrroline 6. Philippe Karoyan of the UPMC, Paris developed (J. Org. Chem. 2008, 73, 6706) an interesting chiral auxiliary directed cascade process, converting the simple precursor 7 into the complex pyrrolidine 9. Sherry R. Chemler of the State University of New York, Buffalo devised (J. Am. Chem. Soc. 2008, 130, 17638) a chiral Cu catalyst for the cyclization of 10, to give 12 with substantial enantiocontrol. Wei Wang of the University of New Mexico demonstrated (Chem. Commun. 2008, 5636) the organocatalyzed condensation of 13 and 14 to give 16 with high enantio- and diastereocontrol. Two complementary routes to azepines/azepinones have appeared. F. Dean Toste of the University of California, Berkeley showed (J. Am. Chem. Soc. 2008, 130, 9244) that a gold complex catalyzed the condensation of 17 and 18 to give 19. Frederick G. West of the University of Alberta found (Organic Lett. 2008, 10, 3985) that lactams such as 20 could be ring-expanded by the addition of the propiolate anion 21. Takeo Kawabata of Kyoto University extended (Organic Lett . 2008, 10, 3883) “memory of chirality” studies to the cyclization of 23, demonstrating that 24 was formed in high ee. Paul V. Murphy of University College Dublin took advantage (Organic Lett . 2008, 10, 3777) of the well-known intramolecular addition of azides to alkenes, showing that the intermediate could be intercepted with nucleophiles such as thiophenol, to give the cyclized product 26 with high diastereocontrol.
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Lambert, Tristan H. "New Methods for C–N Ring Construction." In Organic Synthesis. Oxford University Press, 2015. http://dx.doi.org/10.1093/oso/9780190200794.003.0055.
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The reduction of pyridines offers an attractive approach to piperidine synthesis, and now Toshimichi Ohmura and Michinori Suginome of Kyoto University have developed (J. Am. Chem. Soc. 2012, 134, 3699) a rhodium-catalyzed hydroboration of pyridines, including the reaction of 1 to produce 3. Timothy J. Donohoe at the University of Oxford has found (Org. Lett. 2011, 13, 2074) that pyridinium silanes 4 undergo intramolecular hydride transfer by treatment with TBAF to produce dihydropyridones (e.g., 5) with good diastereoselectivity. Enantioselective amination of allylic alcohols has proven challenging, but Ross A. Widenhoefer at Duke University has reported (Angew. Chem. Int. Ed. 2012, 51, 1405) that a chiral gold catalyst can effect such intramolecular cyclizations with good enantioselectivity, as in the synthesis of 7 from 6. Alternatively, Masato Kitamura at Nagoya University has developed (Org. Lett. 2012, 14, 608) a ruthenium catalyst that operates at as low as 0.05 mol% loading for the conversion of substrates such as 8 to 9. Efforts to replace transition metal catalysts with alkaline earth metal-based alternatives have been gaining increasing attention, and Kai C. Hultzsch at Rutgers University has found (Angew. Chem. Int. Ed. 2012, 51, 394) that the magnesium complex 12 is capable of catalyzing intramolecular hydroamination (e.g., 10 to 11) with high enantioselectivity. Meanwhile, a stereoselective Wacker-type oxidation of tert-butanesulfinamides such as 13 to produce pyrrolidine derivatives 14 has been disclosed (Org. Lett. 2012, 14, 1242) by Shannon S. Stahl at the University of Wisconsin at Madison. Though highly desirable, Heck reactions have rarely proven feasible with alkyl halides due to competitive β-hydride elimination of the alkyl palladium intermediates. Sherry R. Chemler at the State University of New York at Buffalo has demonstrated (J. Am. Chem. Soc. 2012, 134, 2020) a copper-catalyzed enantioselective amination Heck-type cascade (e.g., 15 and 16 to 17) that is thought to proceed via radical intermediates. David L. Van Vranken at the University of California at Irvine has reported (Org. Lett. 2012, 14, 3233) the carbenylative amination of N-tosylhydrazones, which proceeds through η3-allyl Pd intermediates constructed via carbene insertion. This chemistry was applied to the two-step synthesis of caulophyllumine B from vinyl iodide 18 and N-tosylhydrazone 19.
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Taber, Douglass F. "Stereoselective C-O Ring Construction: The Jamison Synthesis of (-)-Gloeosporone." In Organic Synthesis. Oxford University Press, 2013. http://dx.doi.org/10.1093/oso/9780199965724.003.0047.
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Arene diazonium salts are effective precursors for the Heck reaction. Sandro Cacchi of the Università degli Studi “La Sapienza,” Roma, observed (Synlett 2009, 1277) that the diazonium salt generated in situ from 1 coupled with 2 to deliver the butenolide 3. Daniel J. Canney of Temple University established (Tetrahedron Lett. 2009, 50, 5914) conditions for the homologation of an alkenyl ester such as 4 to the homologated lactone 5. Tsutomu Katsuki of Kyushu University established (J. Am. Chem. Soc. 2009, 131, 14218) that Ir-mediated C-H insertion converted 6 into 8 with high diastereo- and enantiocontrol. Thomas J. J. Müller of the Heinrich-Heine-Universität, Düsseldorf, optimized ( Adv. Synth. Cat. 2009, 351, 2921) the Rh-mediated enantioselective cycloisomerization of 9 to 10. Santosh J. Gharpure of the Indian Institute of Technology, Madras, showed (Organic Lett. 2009, 11, 5466) that the intramolecular cyclopropanation of 11 proceeded with high diasterocontrol. Reduction of the intermediate cyclopropane then delivered the cyclic ether 12. Brian L. Pagenkopf of the University of Western Ontario optimized (Organic Lett. 2009, 11, 5614) the diastereoselective Co-catalyzed oxidative cyclization of 13 to 14. Mark C. Bagley and Andrew E. Graham of Cardiff University found (Tetrahedron Lett. 2009, 50, 6823) that microwave heating promoted the selective BaMnO4 oxidation of 1,3-, 1,4-, and 1,5-diols such as 15 to the corresponding lactones. David W. Lupton of Monash University developed (J. Am. Chem. Soc. 2009, 131, 14176) the remarkable cyclization of 17 to 19, catalyzed by the carbene precursor 18. Hirokazu Urabe of the Tokyo Institute of Technology showed (J. Am. Chem. Soc. 2009, 131, 3166) that the unusual Rh-catalyzed cyclization of an alkynyl sulfone 20 proceeded with substantial diastereocontrol, delivering the cyclic ether 21 as the major product. Jeffrey S. Johnson of the University of North Carolina established (J. Am. Chem. Soc. 2009, 131, 14202) that Sc(OTf)3 was a particularly efficient catalyst for the opening of 22 with 23 and then reclosure, leading to 24. Steven D. R. Christie and Gareth J. Pritchard of Loughborough University (Chem. Commun. 2009, 7339) and Michael A. Kerr of the University of Western Ontario (J. Org. Chem. 2009, 74, 8414) investigated related condensations.
Conference papers on the topic "R.C. Pro Am"
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Yao, Xiling, Seung Ki Moon, and Guijun Bi. "The Additive Manufacturing Process Setting Feasible Space Exploration and Association With Variable Product Platform Design." In ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/detc2015-46665.
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Additive manufacturing (AM) has evolved from prototyping to functional part fabrication for a wide range of applications. AM process settings have significant impact to both part quality and production cost, which makes the process setting adjustment a key consideration during product development and manufacturing. This research aims to investigate the relationship among process setting adjustments, costs, and component design parameters. Platform-based product family design and process family planning are used in this research as the strategy to provide product diversity while controlling cost. In this paper, the concept of a variable product platform and its corresponding AM process setting variants are proposed to describe the characteristics of additive manufactured platform modules. AM production cost drivers are identified. A Fuzzy Time-Driven Activity-Based Costing (FTDABC) approach is proposed to estimate the cost increment due to process setting adjustments. Time equations in the FTDABC are computed in a trained Adaptive Neuro-Fuzzy Inference System (ANFIS). The process setting adjustment’s feasible space boundary searching is formulated as an optimization problem, with minimizing the cost increment and maximizing the design parameters’ variability as objective functions. The upper and lower limits of variable platform module’s design parameters are mapped from process setting adjustments in a Mamdani-type expert system. The proposed methodology is illustrated in the analysis of a honeycomb-shaped bumper, which is taken as a variable platform module for a family of R/C racing cars. The result provides boundaries for design parameters, which confines the AM-enabled design space for product platform modules.
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Khondoker, Mohammad Abu Hasan, and Dan Sameoto. "Design and Characterization of a Bi-Material Co-Extruder for Fused Deposition Modeling." In ASME 2016 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/imece2016-65330.
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Fused Deposition Modeling (FDM) is a popular style of additive manufacturing (AM) where a 3D object is fabricated by a molten material deposited into successive 2D layers. Multi-material 3D printing is particularly challenging due to poor adhesion between dissimilar plastics. The majority of currently available multi-material printers use separate nozzles for each material. Therefore, they are incapable of producing devices made of functionally gradient materials (FGM). FGM is a special class of engineering material exhibiting spatially inhomogeneous content, which tailors the material for specific functional and performance requirements. In this work, we present the design and characterization of a bi-material co-extruder system. This specialized extruder is capable of printing two thermoplastic materials through a single nozzle and is also capable of altering the composition of the deposited material while printing. It is also exceptional in that the internal structure of the hot end can be easily accessed and is a more adaptable design than previously reported co-extruders. The extruder was installed on a Geeetech PI3 Pro C printer. Then, some simple structures were printed using pairs of materials including polylactic acid (PLA), acrylonitrile butadiene styrene (ABS) and high impact polystyrene (HIPS). Without any internal mixing features, the composition of the output (for instance, different colored PLA) was determined from microscopic images of cross-section of the extrudates.
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Gil-Flores, Lorena, María D. Salvador, Felipe L. Penaranda-Foix, Roberto Rosa, Paolo Veronesi, Cristina Leonelli, and Amparo Borrell. "LOW TEMPERATURE DEGRADATION BEHAVIOUR OF 10Ce-TZP/Al2O3 BIOCERAMICS OBTAINED BY MICROWAVE SINTERING TECHNOLOGY." In Ampere 2019. Valencia: Universitat Politècnica de València, 2019. http://dx.doi.org/10.4995/ampere2019.2019.9887.
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Zirconia is one of the most used ceramics, especially for biomedical applications, due to its exceptional mechanical properties. However, it is commonly known that its properties can be diminished owing to a low temperature degradation (LTD). This phenomenon consists on a spontaneous phase transformation, from tetragonal to monoclinic, under certain conditions, which is accelerated when the samples are exposed under high levels of humidity at a temperature range between 20-300 ºC. In addition to the fact that the monoclinic phase presents worse mechanical properties than the tetragonal one, there is a volume change of 4% between phases that gives rise to defects in the material as microcracks. Due to this reason, zirconia prostheses failed catastrophically inside the human body between 1999 and 20011. Previous researches reveal that Al2O3 addition suppress the propagation of phase transformation2. Thus, the aim of the present work is to study the hydrothermal ageing of zirconia doped with ceria and toughened with alumina (10Ce-TZP/Al2O3) composite, which has been sintered by microwave employing two different frequencies: 2.45 and 5.8 GHz. Microwave heating technology is based on the absorption of electromagnetic radiation by the material, which allows the sample to be heated. So far, most microwave heating equipments use 2.45 GHz; accordingly, the novelty of this study is to employ a frequency of 5.8 GHz and to investigate its effect on LTD. LTD is carried out in an autoclaved in steam at 120 ºC and 1.2 bar, because these conditions accelerate the hydrothermal aging process3. In order to characterize the degraded samples, micro-Raman spectroscopy, AFM, nanoindentation technique and electronic microscopy have been performed. References 1. Norton, M. R., Yarlagadda, R., Anderson, G. H. J. Bone Joint Surg. Br., 2002, 84–B, 631–635. 2. Fabbri, P., Piconi, C., Burresi, E., Magnani, G., Mazzanti, F., Mingazzini, C. Dent. Mater., 2014. 3. Presenda, Á., Salvador, M. D., Moreno, R., Borrell, A. J. Am. Ceram. Soc., 2015, 98, 3680–3689.
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Losito, R., M. Sternbach, A. Masson, M. Paguin, A. Boyer, and A. Trepanier. "HEMOSTATIC PARAMETERS DURING PREPARATION OF LEUKOCYTE-POOR BLOOD." In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1644159.
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Non-hemolytic febrile transfusion reactions are believed to be due to sensitization to granulocytes. Leukocyte removal can diminish or prevent the reaction. Use of the Pall filter (Pall Bio Medical Prod. Corp.) has resulted in some patient reactions. The purpose was to re-investigate this filter in vitro and compare it to the Imugard (Terumo) and the Erypur (Organon Teknika) filters and study their influence on hemostatic activation pathways. Method: RBC cones., aged 5 or 10 days, were centrifuged (5,200 R. P. M., 4°C, 15 m.). Cells were leftundisturbed for 6-24 hours before filtration. Hematological parameters analysed included: leukocyte, red cell and platelet counts, differential and scanning electron microscopy. Activation studies related to clotting, fibrinolysis, kinin and complement pathways including both biological and immuno-assays; they consisted of the recal time, PTT, pro time, Factors I, VIII, XII, HMW kininogen, kallikrein, F. D. P., AT-III, alpha 2-macroglobulin, alpha 1-antitrypsin, plasminogen, Cl inactivator, C3, C4 and C5. Over 75 filtrations have been performed. Results of cell recovery are illustrated in table below. Changes in tests related to activation were minimal with the Pall filter while a wide spectrum of derangements were common with the other twofilters.Conclusion: it appears the Erypur filter gives optimal results in the removal of leukocytes and platelets, whereas there is good recoveryof red cells by the Pall and Imugard filters. Secondly, the Pall filter (nylon) does not appear to be involved with the contact pathways whereas Erypur (cellulose acetate) and Imugard (cotton) have an influenceon these pathways.
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Jung, G., and P. Sedivy. "48740 RP INHIBITS PLATELET SHAPE CHANGE INDUCED BY PAF-ACETHER IN VITRO." In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1643487.
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Platelet shape change (PSC) is the first measurable physiological response to platelet pro-aggregant agonists such as PAF-acether (PAF) (1). The laser thromborheometer (2) was used to assess the PSC (detected as decrease in light scattering as 2 of maximal velocity) and the platelet aggrega tion (detected as increase in the light transmission as 2 of maximal velocity and maximal amplitude) in citrated platelet -rich plasma (cPRP) (1 volume 3.8 2 sodium citrate ± 9 volumes blood) from 12 volunteers of either sex. PAF concentrations ranging from 0.1 to 1 yM induced PSC (range of velocities : 13.2-69.8 2 of maximal velocity, n = 12) and platelet aggregation (range of velocities : 9.3-22.2 2 of maximal velocity and maximum amplitude of aggregation always superior to 20 2, n = 12). These effects were inhibited by 48740 R.P., 3-(3- pyridy1)-1H,3H pyrrolo [1 , 2-c] thiazo1e-7-carboxamide (100200 yM) a selective and competitive PAF-antagonist (3). For instance, 100 yM 48740 RP decreased by 76.4 ± 3.5 (mean ± S.E.M., n = 3) PSC evoked by 0.1 yM of PAF. Furthermore, 48740 RP was also able to reduce PSC in heparinized platelet - r ich plasma (hPRP). The antagonist effects of 46740 RP could be overcome by increasing PAF concentrations in the cPRP and hPRP. During this study, 6 volunteers were found, in whom even concentrations of PAF up to 10.5 pM failed to induce an amplitude of aggregation in cPRP greater than 20 2 whereas PSC was in the range of 19.1-79.4 2 of maximal velocity. These responses to PAF which were antagonized by 48740 RP were not due to an alteration in plasma properties ; thus, they are proposed to result from undetermined changes occuring at the level of the platelet (e.g.) decreased number of PAF-operationa1 receptors or alteration of the excitation - response pathways). In conclusion, 48740 RP is an antagonist of PAF-evoked aggregation and PSC in cPRP from volunteers responding either normally or poorly to PAF. (1) LAPETINA E.G. et al. J. Biol. Chem. 258, 7241 (1983). (2) JUNG G. et al. Nouv. Rev. Fr. H6matol. 27, 103 (1985). (3) SEDIVY P. et al. Thromb. Haemost. 54, 185 (1985).