989 resultados para Bloch, Marc: Historian puolustus
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El propósito de este artículo es práctico: enseñar al usuario de Winisis a reformatear las bases de datos diseñadas e implementadas en cualquier formato, normalizado o no, convirtiéndolas al formato de interés de la unidad de información.Winisis es un paquete que permite utilizar cualquier nomenclatura en la definición de las etiquetas que identifican los campos. Este aspecto es una ventaja y una desventaja porque permite libertad en la selección del formato a utilizar, pero, se generan una gran diversidad de formatos en las unidades de información, dificultando la compatibilidad en los sistemas automatizados de catalogación, la normalización y la transferencia efectiva de la información entre unidades de información.Algunos problemas que enfrentan los bibliotecólogos en su trabajo cotidiano al normalizar la información son por ejemplo:a) la diversidad de bases de datos sin normalización, b) la variación entre formatos, c) los diferentes números, etiquetas y nombres de los campos que integran las bases de datos, e incluso bases de datos creadas con diferentes versiones de Microisis; d) un catálogo automatizado en un formato sin normalización; e) para la participación en una red y exige la reconversión del catálogo al formato común de la red. En algunos casos se ha optado por digitar de nuevo la información en el nuevo formato, sin embargo, ante esta situación, Microisis y Winisis dispone de un recurso denominado "Tabla de Selección de Campos para reformateo".
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Työni kohteena on ollut historiankirjoittaja John Andrewsin (n.1736–1809) grand tour -opas Letters to a Young Gentleman, on His Setting out for France (1784). Tutkielmassa olen tarkastellut sitä, millaiseen suhteeseen historia ja matkakirjoittaminen ovat teoksen Pariisi-osuuksissa asettuneet. Ilmiötä olen lähestynyt hyödyntämällä niin kutsuttua reframingin käsitettä, jolla historiantutkimuksessa on jäsennetty ajatusten kehystymistä eri konteksteissa – siis niille annettujen merkitysten muuttumista. Tämä käsite on mahdollistanut sellaisen tarkastelun, jossa huomio on kohdistunut historian oppaassa saamiin käyttöihin sekä sen merkitysten muotoutumiseen. Andrewsin oppaasta voi erottaa kaksi pistettä, joissa historia ja matkakirjoittaminen ovat kietoutuneet toisiinsa. Pisteistä ensimmäinen on kytkeytynyt nähtävyyksien kohtaamiseen, kun taas niistä jälkimmäinen on liittynyt Pariisin kulttuurisen aseman määrittelemiseen. Andrewsille historia onkin näyttäytynyt eräänlaisena välineenä, joka on paitsi ohjannut myös perustellut nähtävyyksien tarkastelemista. Samalla historia on jäsentänyt kaupungin suhdetta Ranskaan, Eurooppaan ja kristikuntaan – sekä muihin kansoihin ja eri kirkkokuntiin. Nämä pisteet eivät kuitenkaan ole jääneet irrallisiksi, sillä molemmissa yhteyksissä uskonnolliset erot ovat saaneet merkittävän sijan. Yhtäältä historia on tukenut näihin eroihin perustuneita vertailuasetelmia; toisaalta erot ovat muokanneet Andrewsin suhdetta nähtävyyksiin sekä niiden historiallisuuteen. Reframingin käsitteeseen perustuva erittely on osoittanut sen, että Andrewsin oppaassa historia ei ole ollut vain matkakirjoittamisen aihepiiri. Tekstissä historia onkin saanut myös toisenlaisia käyttöjä, minkä voi liittää matkakirjallisuuden konventioihin sekä aikakauden grand tour -keskusteluihin. Kyse on siitä, että Andrewsin matkakirjoittamista ovat ohjanneet lajityypin genrepiirteet sekä teoksen oletettu yleisö – siis grand tourille aikovat nuorukaiset. Nämä keskustelut ja konventiot ovat tarjonneet Andrewsille eräänlaisen kehyksen, joka on säädellyt hänen tekemiään valintoja. Samalla se on jäsentänyt historian oppaassa saamia merkityksiä.
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Yhdysvalloissa kehittyi noin vuosina 1850–1865 erityinen orjuutta puolustamaan noussut kaunokirjallisuuden lajityyppi. Sen synty oli osa etelävaltioiden elämäntavan ja siihen keskeisesti liittyneen orjuuden taakse organisoitunutta puolustautumista, joka kehittyi erityisesti kolmena Yhdysvaltojen sisällissotaa edeltäneenä vuosikymmenenä, jolloin etelän orjajärjestelmä joutui kovan arvostelun kohteeksi. Orjuuden puolustajien kirjoittama romaanikirjallisuus voidaan nähdä eräänlaisena etelän vastareaktiona Harriet Beecher Stowen suuren suosion saaneelle orjuutta kritisoineelle romaanille Setä Tuomon tupa, joka julkaistiin vuonna 1852. Keskityn tutkielmassani yhteen tämän orjuutta puolustaneen romaanikirjallisuuden edustajaan, baptistipastori Ebenezer W. Warrenin vuonna 1864 julkaisemaan romaaniin Nellie Norton: or Southern Slavery and the Bible. A scriptural refutation of the principal arguments upon which the abolitionists rely. A vindication of southern slavery from the old and new testaments. Romaani sijoittuu julkaisuajankohtansa puolesta lajityyppinsä viimeisimpien edustajien joukkoon. Tutkielmassani tarkastellaan, minkälaisista argumenteista romaanin keinoin esitetty orjuuden puolustus koostuu. Tämän lisäksi tarkastelen myös sitä, millainen kuva romaanissa annetaan etelävaltioiden, ja toisaalta niiden vastapuolena näyttäytyvien pohjoisten osavaltioiden ja Englannin elämäntavasta ja maailmankuvasta. Tutkielmani osoittaa orjuuden puolustuksen rakentuvan Warrenin romaanissa erityisesti uskonnollisista, rasistisista sekä yhteiskunnallisista argumenteista. Romaanissa luodaan näiden kautta voimakas vastakkainasettelu etelän orjayhteiskunnan ja pohjoisen ja Englannin vapaaseen työvoimaan perustuneiden teollistuneiden yhteiskuntien välille. Etelän kirjaimelliset ja konservatiiviset tulkinnat Raamatusta ja sen asemasta moraalin ja yhteiskuntajärjestyksen ylimpänä määrittelijänä asetetaan abolitionistien harhaoppisiksi esitettyjen liberaalimpien ja modernimpien raamatuntulkintojen vastakohdaksi. Vastaavasti etelän orjuuteen perustuvan yhteiskunnan rakenteet ja instituutiot esitetään raamatullisina ja hyveellisinä, siinä missä vapaaseen työvoimaan perustuneet yhteiskunnat esitetään moraalittomina ja raadollisina. Romaanista välittyy erityisesti kuva konservatiivisesta maailmasta, jossa uskonnolliset ja rasistiset ajattelumallit ovat keskeisessä asemassa pyrittäessä puolustamaan ja ylläpitämään orjuuteen perustuvaa eteläistä elämäntapaa.
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Dissertação (mestrado)—Universidade de Brasília, Faculdade de Educação, Programa de Pós-Graduação em Educação, 2016.
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Food habits and morpho-histology of the digestive tract of marbled swamp eel, Synbranchus marmoratus (Block, 1917) were investigated. The fish samples were captured during August, 2007 to July, 2008 in the Marechal Dutra reservoir, Acari, Rio Grande do Norte. The rain fall data was obtained from EMPARN. The fish captured, were measured, weighed, dissected, eviscerated and individual stomach weights were registered. The stomach contents analyses were carried out based on volumetric method, points, frequency of occurrence and applying the Index of Relative Importance. The degrees of repletion of the stomachs were determined besides the Index of Repletion relating to feeding activity variations and frequency of ingestion during the rainy and dry seasons. The rainfall varied from 0 mm a 335 mm with a mean value of 71.62 mm. Highest rainfall of 335.5 mm was registered in March, 2008 and August to December was the dry period. During the dry period the study species presented high degrees of repletion of the stomachs, with a peak value in the month of September (mean = 4.54; ± SD = 0.56). The minimum mean value of = 3.99 ± SD = 0.25 was registered in the month of May during the rainy period. The stomach contents of S. marmoratus registered show that this fish prefers animals, 78.22% of crustaceans 2.85% of mollusks, 3.25% of fish, 1.4% of insects and 13.5% of semi-digested organic matter, thus characterizing the study species as a carnivore with a preference for crustaceans. The morpho-histological aspects of the digestive tract of S. marmoratus indicate that the mouth is terminal adapted to open widely, thin lips with taste buds, small villiform teeth forming a single series on maxillas, four pairs of branchial arches with short and widely spaced branchial rays. The oesophagus is short and cylindrical with a small diameter. The oesophagus wall is thick with mucas surface and internal parallel folds. The stomach is retilinical in form, presenting cardiac, caecal and pyloric portions. The caecal portion is long and is intermediary in position between the cardiac and pyloric portions. The cardiac portion of the stomach is short and cylindrical formed of simple epithelial cylindrical mucus cells. The caecal portion is long with narrow walls, a big cavity and smaller folds which give rise to gastric glands. The phyloric portion has no glands and primary or secondary mucas folds. The morphohistological aspects of the digestive tract of S. marmoratus indicate its adaptation to a carnivorous feeding habit
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This dissertation presents detailed experimental and theoretical investigations of nonlinear and nonreciprocal effects in magnetic garnet films. The dissertation thus comprises two major sections. The first section concentrates on the study of a new class of nonlinear magneto-optic thin film materials possessing strong higher order magnetic susceptibility for nonlinear optical applications. The focus was on enlarging the nonlinear performance of ferrite garnet films by strain generation and compositional gradients in the sputter-deposition growth of these films. Under this project several bismuth-substituted yttrium iron garnet (Bi,Y) 3 (Fe,Ga)5 O12(acronym as Bi:YIG) films have been sputter-deposited over gadolinium gallium garnet (Gd 3 Ga5 O12 ) substrates and characterized for their nonlinear optical response. One of the important findings of this work is that lattice mismatch strain drives the second harmonic (SH) signal in the Bi:YIG films, in agreement with theoretical predictions; whereas micro-strain was found not to correlate significantly with SH signal at the micro-strain levels present in these films. This study also elaborates on the role of the film's constitutive elements and their concentration gradients in nonlinear response of the films. Ultrahigh sensitivity delivered by second harmonic generation provides a new exciting tool for studying magnetized surfaces and buried interfaces, making this work important from both a fundamental and application point of view. The second part of the dissertation addresses an important technological need; namely the development of an on-chip optical isolator for use in photonic integrated circuits. It is based on two related novel effects, nonreciprocal and unidirectional optical Bloch oscillations (BOs), recently proposed and developed by Professor Miguel Levy and myself. This dissertation work has established a comprehensive theoretical background for the implementation of these effects in magneto-optic waveguide arrays. The model systems we developed consist of photonic lattices in the form of one-dimensional waveguide arrays where an optical force is introduced into the array through geometrical design turning the beam sideways. Laterally displaced photons are periodically returned to a central guide by photonic crystal action. The effect leads to a novel oscillatory optical phenomenon that can be magnetically controlled and rendered unidirectional. An on-chip optical isolator was designed based on the unidirectionality of the magneto-opticBloch oscillatory motion. The proposed device delivers an isolation ratio as high as 36 dB that remains above 30 dB in a 0.7 nm wavelength bandwidth, at the telecommunication wavelength 1.55 μm. Slight modifications in isolator design allow one to achieve an even more impressive isolation ratio ~ 55 dB, but at the expense of smaller bandwidth. Moreover, the device allows multifunctionality, such as optical switching with a simultaneous isolation function, well suited for photonic integrated circuits.
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Desmoid tumor (DT) is a common manifestation of Gardner's Syndrome (GS), although it is a rare condition in the general population. DT in patients with GS is usually located in the abdominal wall and/or intra-abdominal cavity. We report a case of a 32 years-old female patient with familial adenomatous polyposis (FAP), who was already submitted to total colectomy and developed multiple DT, located in the abdominal wall and in the left breast. The patient underwent several surgical procedures, with a multidisciplinary team of surgeons. Wide surgical resections of the left breast and the abdominal wall tumors were performed in separate steps. Polypropylene mesh reconstruction and muscle flaps were needed to cover the defects of the thoracic and abdominal walls. After partial necrosis of the adipose-cutaneous flap in the abdomen that required a new skin graft, she had a satisfactory outcome with complete healing of the surgical incisions. DT is frequent in GS, however, breast localization is very rare, with few cases reported in the literature. Recurrence of DT is not negligible, even after a wide surgical resection. GS patients must be followed up closely, and clinical examination, associated with imaging studies, should be performed to detect any signs of tumor. DT represents one of the most significant causes of the morbidity and mortality that affects FAP patients following colectomy. In general, the surgical procedures to excise DT are highly complex, requiring a multidisciplinary team.
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Ochnaceae s.str. (Malpighiales) are a pantropical family of about 500 species and 27 genera of almost exclusively woody plants. Infrafamilial classification and relationships have been controversial partially due to the lack of a robust phylogenetic framework. Including all genera except Indosinia and Perissocarpa and DNA sequence data for five DNA regions (ITS, matK, ndhF, rbcL, trnL-F), we provide for the first time a nearly complete molecular phylogenetic analysis of Ochnaceae s.l. resolving most of the phylogenetic backbone of the family. Based on this, we present a new classification of Ochnaceae s.l., with Medusagynoideae and Quiinoideae included as subfamilies and the former subfamilies Ochnoideae and Sauvagesioideae recognized at the rank of tribe. Our data support a monophyletic Ochneae, but Sauvagesieae in the traditional circumscription is paraphyletic because Testulea emerges as sister to the rest of Ochnoideae, and the next clade shows Luxemburgia+Philacra as sister group to the remaining Ochnoideae. To avoid paraphyly, we classify Luxemburgieae and Testuleeae as new tribes. The African genus Lophira, which has switched between subfamilies (here tribes) in past classifications, emerges as sister to all other Ochneae. Thus, endosperm-free seeds and ovules with partly to completely united integuments (resulting in an apparently single integument) are characters that unite all members of that tribe. The relationships within its largest clade, Ochnineae (former Ochneae), are poorly resolved, but former Ochninae (Brackenridgea, Ochna) are polyphyletic. Within Sauvagesieae, the genus Sauvagesia in its broad circumscription is polyphyletic as Sauvagesia serrata is sister to a clade of Adenarake, Sauvagesia spp., and three other genera. Within Quiinoideae, in contrast to former phylogenetic hypotheses, Lacunaria and Touroulia form a clade that is sister to Quiina. Bayesian ancestral state reconstructions showed that zygomorphic flowers with adaptations to buzz-pollination (poricidal anthers), a syncarpous gynoecium (a near-apocarpous gynoecium evolved independently in Quiinoideae and Ochninae), numerous ovules, septicidal capsules, and winged seeds with endosperm are the ancestral condition in Ochnoideae. Although in some lineages poricidal anthers were lost secondarily, the evolution of poricidal superstructures secured the maintenance of buzz-pollination in some of these genera, indicating a strong selective pressure on keeping that specialized pollination system.
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The Structural Genomics Consortium (SGC) and its clinical, industry and disease-foundation partners are launching open-source preclinical translational medicine studies.
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Vasodilator-stimulated phosphoprotein (VASP) and Zyxin are interacting proteins involved in cellular adhesion and motility. PKA phosphorylates VASP at serine 157, regulating VASP cellular functions. VASP interacts with ABL and is a substrate of the BCR-ABL oncoprotein. The presence of BCR-ABL protein drives oncogenesis in patients with chronic myeloid leukemia (CML) due to a constitutive activation of tyrosine kinase activity. However, the function of VASP and Zyxin in BCR-ABL pathway and the role of VASP in CML cells remain unknown. In vitro experiments using K562 cells showed the involvement of VASP in BCR-ABL signaling. VASP and Zyxin inhibition decreased the expression of anti-apoptotic proteins, BCL2 and BCL-XL. Imatinib induced an increase in phosphorylation at Ser157 of VASP and decreased VASP and BCR-ABL interaction. VASP did not interact with Zyxin in K562 cells; however, after Imatinib treatment, this interaction was restored. Corroborating our data, we demonstrated the absence of phosphorylation at Ser157 in VASP in the bone marrow of CML patients, in contrast to healthy donors. Phosphorylation of VASP on Ser157 was restored in Imatinib responsive patients though not in the resistant patients. Therefore, we herein identified a possible role of VASP in CML pathogenesis, through the regulation of BCR-ABL effector proteins or the absence of phosphorylation at Ser157 in VASP.
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Universidade Estadual de Campinas . Faculdade de Educação Física
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Introduction. This protocol aims at measuring fruit ethylene production during ripening. It can be used to compare ethylene production between different banana varieties or to compare ethylene production between fruit produced in different pedo-climatic conditions. The principle, key advantages, starting plant material, time required and expected results are presented. Materials and methods. This part describes the required laboratory materials and the three steps necessary for calculating the amount of ethylene produced during banana postharvest ripening. Possible troubleshooting is considered.
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Introduction. This protocol aims at preparing total RNA for gene expression analysis by Northern blots, RT-PCR and real-time quantitative PCR; cDNA isolation by RTPCR; and cDNA library construction. The principle, key advantages, starting plant material, time required for obtaining total RNA and expected results are presented. Materials and methods. This part describes the required materials and the 27 steps necessary for preparing RNA from peel and pulp fruit tissue: preparation of plant tissue powder, preparation of the complete RNA extraction buffer and isolation of RNA from ground banana fruit tissue. Results. Extraction of total RNA by the method described makes it possible to achieve electrophoresis under denatured conditions and in vitro reverse transcription. An example for Northern blot analysis is illustrated.