118 resultados para Block books


Relevância:

20.00% 20.00%

Publicador:

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Review

Relevância:

20.00% 20.00%

Publicador:

Resumo:

This article identifies favourite publications from 2003 selected by the following writers: Tony Birch, Neal Blewett, Ian Britain, Alison Broinowski, Paul Brunton, Inga Clendinnen, Martin Duwell, Morag Fraser, Andrea Goldsmith, Kerryn Goldsworthy, Peter Goldsworthy, Bridget Griffen-Foley, Clive James, Gail Jones, Nicholas Jose, Brian McFarlane, Brenda Niall, Ros Pesman, Peter Porter, Peter Steele, Chris Wallace-Crabbe, and Robyn Williams.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Graham Greene is perhaps one of the first novelists that springs to a contemporary mind when Catholic writing and literature is mentioned. A convert to Catholicism, he, like many converts before him including John Henry Cardinal Newman (one of the most famous converts of them all) discovered that writing as a Catholic attracted attentions they had never received before conversion. For years Newman was under a Vatican cloud for some of his writing, and Greene was at the height of his international fame when his highly acclaimed novel The Power and the Glory received a ‘negative judgement’ from the Holy Office (despite Cardinal Montini, later Pope Paul VI, as the Vatican’s pro-Secretary of State for Ordinary Affairs intervening on Greene’s behalf at the time).

Relevância:

20.00% 20.00%

Publicador:

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Anxious doctoral researchers can now call on a proliferation of advice books telling them how to produce their dissertations. This article analyzes some characteristics of this self-help genre, including the ways it produces an expert–novice relationship with readers, reduces dissertation writing to a series of linear steps, reveals hidden rules, and asserts a mix of certainty and fear to position readers "correctly." The authors argue for a more complex view of doctoral writing both as text work/identity work and as a discursive social practice. They reject transmission pedagogies that normalize the power-saturated relations of protégé and master and point to alternate pedagogical approaches that position doctoral researchers as colleagues engaged in a shared, unequal, and changing practice

Relevância:

20.00% 20.00%

Publicador:

Resumo:

The phase behavior, hydrogen bonding interactions and morphology of poly(hydroxyether of bisphenol A) (phenoxy) and poly(var epsilon-caprolactone)-block-poly(2-vinyl pyridine) (PCL-b-P2VP) were investigated using differential scanning calorimetry (DSC), Fourier transform infrared (FTIR) spectroscopy, optical microscopy and atomic force microscopy (AFM). In this A-b-B/C type block copolymer/homopolymer system, both P2VP and PCL blocks have favorable intermolecular interaction towards phenoxy via hydrogen bonding. However, the hydrogen bonding between P2VP and phenoxy is significantly stronger than that between PCL and phenoxy. Selective hydrogen bonding between phenoxy/P2VP pair at lower phenoxy contents and co-existence of two competitive hydrogen bonding interactions between phenoxy/P2VP and phenoxy/PCL pairs at higher phenoxy contents were observed in the blends. This leads to the formation of a variety of composition dependent nanostructures including wormlike, hierarchical and core–shell morphologies. The blends became homogeneous at 95 wt% phenoxy where both blocks of the PCL-b-P2VP were miscible with phenoxy due to hydrogen bonding. In the end, a model was proposed to explain the microphase morphology of blends based on the experimental results obtained. The swelling of the PCL-b-P2VP block copolymer by phenoxy due to selective hydrogen bonding causes formation of different microphases

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Nanostructured thermoset blends were prepared based on a bisphenol A-type epoxy resin and an amphiphilic reactive diblock copolymer, namely polyisoprene-block-poly(4-vinyl pyridine) (PI-P4VP). Infrared spectra revealed that the P4VP block of the diblock copolymer reacted with the epoxy monomer. However, the non-reactive hydrophobic PI block of the diblock copolymer formed a separate microphase on the nanoscale. Ozone treatment was used to create nanoporosity in nanostructured epoxy/PI-P4VP blends via selective removal of the PI microphase and lead to nanoporous epoxy thermosets; disordered nanopores with the average diameter of about 60 nm were uniformly distributed in the blend with 50 wt% PI-P4VP. Multi-scale phase separation with a distinctly different morphology was observed at the air/sample interface due to the interfacial effects, whereas only uniform microphase separated morphology at the nanoscale was found in the bulk of the blend.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Nanostructured complexes were prepared from poly(ε-caprolactone)-block-poly(2-vinylpyridine) (PCL-b-P2VP) and poly(4-vinylphenol) (PVPh) in tetrahydrofuran (THF). The phase behavior, specific interactions, and morphology were investigated using differential scanning calorimetry (DSC), Fourier transform infrared (FTIR) spectroscopy, optical microscopy, atomic force microscopy (AFM), transmission electron microscopy (TEM), and small-angle X-ray scattering (SAXS). In this A-b-B/C type block copolymer/homopolymer system, both blocks of the PCL-b-P2VP block copolymer have favorable intermolecular interaction toward PVPh via hydrogen bonding, but the interaction between P2VP block and PVPh is significantly stronger than that between PCL block and PVPh. It was found that the disparity in competitive intermolecular interactions, specifically PVPh and P2VP block interact strongly whereas PVPh and PCL block interact weakly, leads to the formation of a variety of nanostructures depending on PVPh concentration. Spherical micelles of 30−40 nm in diameter were obtained in the complex with 10 wt % PVPh, followed by wormlike micelles with size in the order of 40−50 nm in the complexes with 30−60 wt % PVPh. At low PVPh concentrations, PCL interacts weakly with PVPh, whereas in the complexes containing more than 20 wt % PVPh, the PCL block began to interact considerably with PVPh, leading to the formation of composition-dependent nanostructures. The complex becomes homogeneous with PVPh content beyond 60 wt %, since a sufficient amount of PVPh is available to form hydrogen bonds with both PCL and P2VP. Finally, a model was proposed to explain the self-assembly and microphase morphology of these complexes based on the experimental results obtained. The competitive hydrogen-bonding interactions cause the self-assembly and formation of different microphase morphologies.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Nanostructured poly(ε-caprolactone)-block-poly(2-vinyl pyridine) (PCL-b-P2VP)/poly(acrylic acid) (PAA) interpolyelectrolyte complexes (IPECs) were prepared by casting from THF/ethanol solution. The morphological behaviour of this amphiphilic block copolymer/polyelectrolyte complexes with respect to the composition was investigated in a solvent mixture. The phase behaviour, specific interactions and morphology were investigated using differential scanning calorimetry (DSC), Fourier transform infrared (FTIR) spectroscopy, optical microscopy (OM), dynamic light scattering (DLS) and atomic force microscopy (AFM). Micelle formation occurred due to the aggregation of hydrogen bonded P2VP block and polyelectrolyte (PAA) from non-interacted PCL blocks. It was observed that the hydrodynamic diameter (Dh) of the micelles in solution decreased with increasing PAA content up to 40 wt%. After 50 wt% PAA content, Dh again increased. The micelle formation in PCL-b-P2VP/PAA IPECs was due to the strong intermolecular hydrogen bonding between PAA homopolymer units and P2VP blocks of the block copolymer. The penetration of PAA homopolymers into the shell of the PCL-b-P2VP block copolymer micelles resulted in the folding of the P2VP chains, which in turn reduced the hydrodynamic size of the micelles. After the saturation of the shell with PAA homopolymers, the size of the micelles increased due to the absorption of added PAA onto the surface of the micelles.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

This is a history of illustrated Australian children's books published between 1845 and 2008 that emphasises the lesser known elements of the Australian child's literary history. Beyond the icons, such as May Gibbs' Snugglepot and Cuddlepie and Dorothy Wall's Blinky Bill, lie a wealth of illustrated books that broaden the potential for further research. Bottersnikes and Other Lost Things with over 400 full colour illustrations, is a tangible resource giving researchers the potential to expand our understanding of Australian children's literature: Advertising and ephemeral children's books provide insight into the varied nature children's reading from the turn of the 20th century; The educational reading reveals the expectations of the adults who wrote the School Papers and Readers and the aspirations they had for their readership; Attitudes to cultural difference across this period is remarkable for the overt nature of the racist portrayal of Indigenous Australians during the 19th and first half of the 20th centuries. These are some of the aspects of the Australian child's literary heritage explored for the first time in this history of Australian children's literature.