1,401 research outputs found
Fowler ware : catalogue of crookery and stoneware.
No full textElectronic reproduction. Canberra, A.C.T. : National Library of Australia, 2013
Thermonuclear Reaction Rates
No full textModern computer technology has revolutionized theoretical calculations on stellar structure and stellar evolution. Physical information of great complexity, previously ignored or crudely treated, can now be introduced in detail into stellar computations and can be treated with great precision and completeness. In particular it is no longer necessary (Iben 1965, Wagoner,
Fowler & Hoyle 1967) to approximate hard-won laboratory results on nuclear reaction rates by crude power-law dependences on temperature.
In this article we review the available experimental data on cross sections for the nuclear interactions of neutrons, protons, and alpha particles with a
number of light and intermediate-mass nuclei and we present calculations on the resulting reaction rates, nuclear lifetimes, and energy generation rates
under astrophysical conditions. We restrict our considerations to nondegenerate, nonrelativistic circumstances for the interacting nuclei. Table I lists
the general nuclear processes discussed, along with the units used in presenting numerical results and the notation used in representing nuclear reactions.
Previous reviews of nuclear reaction rates, somewhat more limited in scope, have been given by Fowler (1954, 1960) , Burbidge, Burbidge, Fowler & Hoyle (1957) (hereafter referred to as B^2FH), Caughlan & Fowler (1962), and Parker, Bahcall & Fowler (1964). The last previous overall survey of nuclear reaction rates which has come to our attention is that of Reeves (1965)
The sense of a beginning : Bakhtinian dialogic criticism on 'the gospel' in Mark.
No full textContemporary literary approaches have caused paradigm shifts in Biblical Studies in the last two decades as it appears in a great deal of Markan studies using narrative, reader-response, deconstructive, feminist, and new historicist approaches. However, literary studies on the Gospel of Mark have not taken into account theoretical questions underlying those approaches. As a result biblical critics are driven by new trends without ever having a chance to examine the critical baggage of the approaches. Consequently, there is a gap of communication between the old and the new one. Therefore this thesis is an attempt to meet the need of enhancing the quality of critical endeavour in biblical studies. In the light of most recent competing critical theories of literature, the first contribution of this thesis is the methodological finding that Bakhtinian dialogic criticism contains the most profound philosophical and practical foundations for solving some crucial theoretical problems in contemporary literary theories. It is a critique to a Saussurian linguistic system of language which becomes the very foundation of modern and postmodern literary criticism. Bakhtinian literary theory shifts the foundation of literary criticism on linguistic signs into the creative activity of the socio-cultural production of human communication. The shift into socio-cultural reality of language communication makes the notion of 'genre' very important to unlock the problem of text and context in literary studies. Since the Gospel of Mark has fascinated most literary critics in Biblical Studies, the problem of 'genre' of this gospel is chosen as the focus of this study. Secondly, as no agreement is reached as to what 'genre' the Gospel of Mark belongs, this thesis makes its contribution to the discussion by locating the problem of 'genre' of Mark in the context of genre theories and argues that the Bakhtinian suggestion to find genre in the socio-cultural sphere by analysing artistic intercourse between narrative agents in Mark has freed the competing analysis from the unresolved problem between the kerygmatic (content oriented) approach and the analogical (form oriented) approach. To achieve finding 'genre' in the socio-cultural sphere, this thesis focuses on Bakhtinian analysis of the process of artistic intercourse between narrative agents. The narrative communicative interrelationships between narrative agents is constructed in this thesis as a 'stereophonic' Bakhtinian model of dialogic communication. This model is an original contribution of this thesis for revising the traditional two dimensional model of narrative communication. Based on this dialogical model of communication, a special role is given to the Bakhtinian 'author-creator' in the realization process of genre through the interaction of polyphonic voices. Through the interaction of voices of the author-artist and the hero we are led to discover a relatively stable type of portraying and controlling reality in Mark, known as the genre of Roman 'satire'. The closest literary affinity is Satyrica by Petronius. This narrative strategy of 'satire' in Mark has its root in the prophetic discourse of the Old Testament which is saturating the speech of the narrator, John the Immerser, the centurion, the people, and even Jesus. Finally, the whole search for Markan 'genre' culminates in the analysis of the realization of genre through the analysis of Bakhtinian chronotope. The reality of the genre of Mark is its social reality that is in its role as dpxrj/ 'beginning'. As the Gospel of Mark proclaims itself as 'a beginning', it defines its claim of socio-cultural 'authority' in early Christianity. It is this 'sense of beginning' which enables the narrating and the narrated world of Mark to interact dialogically
simecol: An Object-Oriented Framework for Ecological Modeling in R
No full textThe simecol package provides an open structure to implement, simulate and share ecological models. A generalized object-oriented architecture improves readability and potential code re-use of models and makes simecol-models freely extendable and simple to use. The simecol package was implemented in the S4 class system of the programming language R. Reference applications, e.g. predator-prey models or grid models are provided which can be used as a starting point for own developments. Compact example applications and the complete code of an individual-based model of the water flea Daphnia document the efficient usage of simecol for various purposes in ecological modeling, e.g. scenario analysis, stochastic simulations and individual based population dynamics. Ecologists are encouraged to exploit the abilities of simecol to structure their work and to use R and object-oriented programming as a suitable medium for the distribution and share of ecological modeling code.
Estudio de las complicaciones perianulares en la endocarditis infecciosa. Análisis de aspectos clínicos, microbiológicos, ecocardiográficos, terapéuticos y pronósticos en pacientes con abscesos perianulares y fístulas aorto-cavitarias en la endocarditis complicada.
No full text[spa] La endocarditis infecciosa (EI) es una enfermedad potencialmente muy grave, que puede llegar a ser mortal sin tratamiento, cuyo pronóstico ha experimentado una gran mejoría en las ultimas décadas. Este importante cambio en la historia natural de la enfermedad se ha reflejado en una progresiva disminución de la morbi-mortalidad, sobretodo gracias al uso de potentes antibióticos y al empleo de las técnicas quirúrgicas de reparación valvular. La EI es la infección del endotelio de las válvulas cardiacas por gérmenes patógenos. La elevada morbi-mortalidad de la EI se debe a la destrucción que se produce en las válvulas y los tejidos circundantes, debido a la particular anatomía valvular que impide la correcta difusión de los antibióticos al interior de las vegetaciones valvulares. La EI tenía en la era-preantibiótica una mortalidad del 100%. El gran descenso en la mortalidad se ha producido en las últimas tres décadas, con el desarrollo de la cirugía cardiaca y la posibilidad de efectuar recambios valvulares. Con la introducción de la ecocardiografía se han podido visualizar por primera vez mediante un método incruento las vegetaciones valvulares. El desarrollo de esta técnica de imagen ha sido fundamental y en la actualidad tiene un papel clave en el diagnóstico y manejo de esta entidad ya que permite estudiar con gran detalle la anatomía cardiaca. En la actualidad, la mortalidad por EI sobre válvula nativa en fase aguda oscila entre el 20% y el 30% y la supervivencia a los 10 años de seguimiento se sitúa entre el 70% y el 80%. El pronóstico de la EI depende de un gran número de variables. Las complicaciones perianulares en la endocarditis infecciosa representan la extensión de la infección más allá de las estructuras valvulares y representan una de las complicaciones más importantes en esta enfermedad. La formación de lesiones perianulares se asocia a un pronóstico desfavorable, con elevada mortalidad. La formación de fístulas aorto-cavitarias en la endocarditis sólo se ha descrito de forma ocasional en la endocarditis y, por ello, se desconocen sus características clínicas y sus factores pronósticos de mortalidad.La hipótesis del estudio es que la presencia de complicaciones graves en la EI (desarrollo de abscesos perianulares y fístulas aorto-cavitarias) detectadas por ecocardiografía se asocia a un incremento significativo de la morbi-mortalidad. El análisis de las características clínicas y pronósticas permitiría identificar los parámetros asociados a un curso desfavorable; de esta forma podrían redefinirse las líneas de actuación (fundamentalmente quirúrgicas) encaminadas a un abordaje más temprano en pacientes seleccionados, con más posibilidades de reconstrucción completa y erradicación de la infección. Identificar estas variables permitiría, en definitiva, aumentar la supervivencia a corto y medio plazo de los casos de EI complicada.Los objetivos de este estudio son: determinar las características clínicas y el pronóstico de los pacientes con abscesos perianulares íntegros y de pacientes con fistulización aorto-cavitaria en la endocarditis y determinar el impacto sobre el pronóstico de la aparición de fistulización aorto-cavitaria en la endocarditis complicada con lesiones perianulares.Se han publicado varios estudios multicéntricos con el objetivo de reclutar una gran serie de pacientes con complicaciones perianulares y poder estudiar con detalle las características clínicas de estas complicaciones y poder analizar sus factores pronósticos de mortalidad.ARTICULOS PUBLICADOSARTICULO 1:Anguera I, Quaglio G, Miró JM, Paré C, Azqueta M, Marco F, Mestres CA, Moreno A, Pomar JL, Mezzelani JL, Sanz G. Acquired aortocardiac fistulas complicating infective endocarditis. Am J Cardiol 2001;87:652-654. Impact factor (2005) : 3.14ARTICULO 2:Anguera I, Miro JM, Vilacosta I, Almirante B, Anguita M, Muñoz P, San Roman JA, de Alarcón A, Ripoll T, Navas E, Gonzalez-Juanatey C, Cabell CH, Sarriá C, Garcia-Bolao I, Fariñas MC, Leta R, Rufi G, Miralles F, Pare C, Evangelista A, Fowler Jr VG, Mestres CA, de Lazzari E, Guma JR. Aorto-cavitary fistulous tract formation in infective endocarditis. Clinical and echocardiographic features of 76 cases and risk factors for mortality. Eur Heart J 2005;26:288-297. Impact factor (2005) : 6.25ARTICULO 3: Anguera I, Miro JM, Evangelista A, Cabell CH, San Roman JA, Vilacosta, Almirante B, Ripoll T, Fariñas MC, Anguita M, Navas E, Gonzalez-Juanatey C, Garcia-Bolao I, Muñoz P, de Alarcón A, Sarriá C, Rufi G, Miralles F, Pare C, Fowler Jr VG, Mestres CA, de Lazzari E, Guma JR, Corey GR. Prognostic factors of mortality of Periannular complications in infective endocarditis. A multicenter cohort study of 351 patients with aorto-cavitary fistulae and non-ruptured periannular abscess (1992-2003). Am J Cardiol 2005 (en revisión editorial).ARTICULO 4: Anguera I, Miro JM, Cabell CH, Abrutyn E, Fowler VG, Hoen B, Olaison L, Stafford JA, Eykyn S, Habib G, Pare C, Wang A, Corey R and the ICE-MD Investigators. Characteristics of aortic periannular abscesses studied with transesophageal echocardiography. A report from the ICE-ME database. Am J Cardiol 2005;96:976-981. Impact factor (2005) : 3.14Como resultado de este estudio, puede concluirse que la fistulización aorto-cavitaria es una complicación infrecuente de la endocarditis infecciosa, que se asocia a una extensa destrucción tisular a nivel del anillo aórtico y a la presencia de abscesos perianulares. La ecocardiografía transesofágica es la técnica de elección para la detección y el estudio de las fístulas aorto-cavitarias. La aparición de insuficiencia cardiaca grave es frecuente en estos pacientes, y a pesar del tratamiento quirúrgico agresivo la mortalidad es elevada. La infección protésica, la cirugía urgente y el desarrollo de insuficiencia cardiaca son los factores pronósticos independientes de mortalidad en los pacientes con fístulas aorto-cavitarias en la endocarditis. La formación de fístulas aorto-cavitarias se asocia a un mayor grado de destrucción anular aórtica y con mayor frecuencia de desarrollo de insuficiencia cardiaca en comparación con los abscesos no fistulizados. Ambas complicaciones requieren con mucha frecuencia tratamiento quirúrgico y tienen una elevada mortalidad, pero la fistulización no constituye un factor pronóstico independiente de mortalidad, tanto a corto como a largo plazo. La formación de abscesos perianulares es frecuente en la endocarditis de localización aórtica, se asocia frecuentemente con infección estafilocócica, y tiene una elevada morbi-mortalidad. La infección estafilocócica es un factor de riesgo independiente de mortalidad en los pacientes que desarrollan abscesos perianulares a nivel aórtico.[eng] Title: "The study of periannular complications in infective endocarditis. Analysis of clinical, microbiological, echocardiographic, therapeutic and prognostic aspects of patients with non-ruptured periannular abscesses and with aorto-cavitary fistulous tract formation in IE"Infective endocarditis (IE) is a devastating disease associated with high death rates without appropriate treatment. The prognosis of IE has changed dramatically during the last three decades due to the use of potent antibiotics and the generalization of surgical therapies of valve repair. Infective endocarditis is characterized by the infection of the endothelium of cardiac valves caused by virulent organisms, and the elevated morbidity and mortality is produced by the destruction of valvular tissue and adjacent structures. In the modern era, one-year mortality of native valve IE is in the range of 20% - 30%, and 10-year survival is in the range of 70%-80%. Spread of infection in IE from valvular structures to the surrounding perivalvular tissue results in periannular complications. Periannular complications, including periannular abscess formation and aorto-cavitary fistulous (ACF) tract formation have not been adequately studied, and may place the patient at increased risk of adverse outcomes including heart failure (HF) and death. Aorto-cavitary fistulous tract formation has only been described occasionally.The main objectives of the present investigation were to investigate the clinical characteristics and the prognosis of patients with non-ruptured periannular abscesses and with aorto-cavitary fistulous tract formation in IE and to determine the prognostic impact of fistulization in patients with periannular lesions in the setting of IE.Several manuscripts including a large number of patients with periannular lesions have been published describing the clinical characteristics and prognostic factors of mortality of patients with periannular lesions in IE.Aorto-cavitary fistula is an uncommon complication of aortic IE associated with extensive aortic root destruction and presence of periannular abscesses. Transesophageal echocardiography is the diagnostic tool of choice for the detection of aorto-cavitary fistulae in both native and prosthetic valves. Despite aggressive surgical treatment, rates of heart failure and mortality are high. Prosthetic IE, urgent surgery and the development of heart failure were associated with an increased risk of death in patients with endocarditis complicated by fistulous tract formation. ACF formation in the course of IE is associated with higher rates of aortic annulus destruction and heart failure compared to non-ruptured abscess. Surgery and mortality rates for both complications were very high; however, despite the higher complications, ACF in the current era of high rates of surgical therapy was not an independent risk factor for mortality.Periannular abscess formation occurs frequently in aortic valve IE, is associated with staphylococcal etiology, and has a high morbidity and mortality. In the current era of TEE imaging and high use of surgical treatment periannular abscess formation in aortic valve IE is not an independent risk factor for mortality. Finally, S. aureus infection constitutes an independent prognostic factor for mortality in patients who develop an abscess
Performance Evaluation Of Public And Private R&D Partnerships: (...)
No full text(WP 07/03 Clave pdf) This paper focuses on organizational learning and knowledge management through the intersectoral R&D relationship between government, universities and private organizations and explores the conditions that influence its performance. A study of over 150 of these projects, funded by Spanish government agencies, is presented in this paper. We empirically investigate how participating firm characteristics, the locus of the R&D agreement, and its organizational characteristics influence intersectoral R&D project performance. Expected and unexpected results are presented and discussed. Performance is determined using a data envelopment analysis (DEA)-based model.Learning capacity, Partnerships, R&D, Knowledge management
Fundamental Mechanisms Behind the Reverse Characteristic of Cu(In,Ga)Se<sub>2</sub> Solar Cells
No full textPartial shading of PV modules can lead to degradation of the shaded cells. The degradation originates from a reverse bias voltage over the shaded cells. In order to mitigate reverse bias damage in Cu(In, Ga)Se2 (CIGS) modules, a good understanding of the fundamental mechanisms governing the reverse characteristic is required. In this study, a model is introduced that describes this behavior for CIGS cells. In this model, the low and non-Ohmic leakage current is accounted for by the space charge limited current component. A sharp increase in current that is typically observed in the CIGS reverse characteristics can be described by Fowler-Nordheim tunneling. This model has been validated against measurements performed at different temperatures and illumination intensities, and is able to describe the dependencies of the reverse bias behavior on both temperature and illumination.Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Photovoltaic Materials and Device
Vertical subwavelength mode confinement in terahertz and mid-infrared quantum cascade lasers
No full textWe exploit the modal confinement properties of metal-metal ridge waveguides to investigate the effect of reducing the thickness of the active laser cores in both terahertz and mid-infrared quantum cascade lasers. Devices with active regions over 55 times thinner than the free-space emission wavelength are demonstrated. They show only a modest increase in threshold current density compared with conventional-thickness devices. The limited increase in threshold is possibly due to a parasitic current channel in addition to the radiative current channel. These structures could be useful for the development of ultra-low volume lasers
Orchard Day, August 18, 1955; Results of Fruit Research
No full textStoring peaches / Donald Comin -- Trends in storages / Donald Comin -- Grape varieties ; Grape soil management and fertilization ; Nitrogen fertilizers for apple trees / J. M. Beattie -- Colorset on Golden Delicious and Grimes ; Planting distance influence on yield of apples ; Harvest dates for apples ; Summer varieties of apples ; Pre-harvest spraying for Baldwin / C. W. Ellenwood -- Peach investigations ; The blueberry planting ; Strawberry studies ; Plum varieties and culture ; Grape weed control studies / R. G. Hill, Jr. -- Semi-dwarf apple trees in Ohio / Freeman S. Howlett and T. E. Fowler -- The Franklin Apple / Freeman S. Howlett and C. W. Ellenwood -- Status of intermediate (trunk-forming) stocks for the apple ; Pruning the newly planted apple tree ; Status of the pear industry in Ohio / Freeman S. Howlett -- Pear variety collection indicates several deserve limited trial / Freeman S. Howlett and C. W. Ellenwoo
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