Search results for "Writ"

Interlacing Christian and Classical Myths: Subversive Reworking of Myths of Rebirth in Michèle Roberts

2009

Powstanie listopadowe we "Wspomnieniach" Nadieżdy Golicyny

2016

The article presents Nadezhda Ivanovna Golitsyna’s (1796—1868) memories of the Polish November Uprising. Golitsyna was a wife of a count Alexander Fyodorovitch Golitsyn (1796—1864), who was a high‑ranking Tsarist official. They lived in Warsaw, where the husband of the author of the Memoirs worked in the office of the Grand Prince Konstantin. Golitsyn was, most probably, a secret agent of the Third Division. After the outbreak of the November Uprising the Golitsynys, together with prince Konstantin’s troops, left Warsaw. The Poles’ struggle for independence is presented in Golitsyna’s Memoirs as a sudden and unexpected rebellion organised by a group of students against the Russian ruler. Go…

The representation of work in the French narration since the Thirty Glorious Years

2017

There has been a resurgence of interest in the theme of work, since the end of the Thirty Glorious Years. Initially centered on a few emblematic works, there has emerged in subsequent years, multifaceted forms of expression that do not lend themselves easily to unifying categorisation. However, a specific literariness has emerged on this theme that reflects an originality that is unique within the realm of literary production. Whilst all writers hesitate about the best means to narrate human activities, those who write about work face particular difficulties in defining their position and status. The notion of fiction itself is challenged as it shifts between the domain of the real and the …

La scrittura espressiva: fondamenti teorici, applicazioni e nuove prospettive di ricerca

2014

Raccontare le esperienze traumatiche e stressanti della propria vita, cercando di chiarirne i significati personali, serve non solo ad oggettivare i propri vissuti ed a conoscersi meglio, ma può anche migliorare le condizioni di salute psico-fisica, l’efficienza personale e modificare in senso positivo il modo di pensare, gli atteggiamenti, i comportamenti e le relazioni interpersonali. James Pennebaker ha inaugurato un filone di studi sperimentali volti a chiarire gli effetti della scrittura espressiva e i meccanismi psicofisiologici che si innescano quando traumi ed esperienze stressanti sono verbalizzati. Il pensiero narrativo è la prospettiva che dà fondamento teorico a tale metodo di r…

Development of an MeV ion beam lithography system in Jyväskylä

2007

Abstract A lithographic facility for writing patterns with ion beams from cyclotron beams is under development for the Jyvaskyla cyclotron. Instead of focusing and deflecting the beam with electrostatic and magnetic fields a different approach is used. Here a small rectangular beam spot is defined by the shadow of a computer-controlled variable aperture in close proximity to the sample. This allows parallel exposure of rectangular pattern elements of 5–500 μm side with protons up to 6 MeV and heavy ions (20Ne, 85Kr) up to few 100 MeV. Here we present a short overview of the system under construction and development of the aperture design, which is a critical aspect for all ion beam lithogra…

Development of micro-contact printing of osteosarcoma cells using MeV ion beam lithography

2009

Abstract For investigation of spatial effects in signalling between cells and also signal substances that trigger cell proliferation and behaviour we are developing a micro Contact Printing process ( μ CP ) . In order to allow printing of cells stamps with high aspect ratio are required and these have been fabricated using Programmed Proximity Aperture Lithography (PPAL) with 3 MeV 4 He 2 + ions to produce PMMA masters for casting the stamps in PDMS. A simple printing device was developed and the first results using this to print human osteosarcoma cells is demonstrated.

Growth of osteoblasts on lithographically modified surfaces

2007

Here we report about preliminary investigations on developing substrates for culturing osteoblasts, the cells responsible for production of mineralised bone, by lithographically modifying the surfaces of several materials. The proton beam writing system at the National University of Singapore was used to fabricate high aspect ratio structures in PMMA, while two-dimensional low aspect ratio structures were fabricated using conventional electron beam lithography (EBL) and UV lithography (UVL) in SU-8. It was found that oxygen plasma treatment of structured SU-8 surfaces changed the surface layer and significantly improved cell attachment and proliferation. Cells grown on patterned thick PMMA …

Development of elastomeric lab-on-a-chip devices through Proton Beam Writing (PBW) based fabrication strategies

2009

Abstract In recent years, one of the most exciting developments in fluidic device applications is the rapid evolution of miniaturized micro- and nanofluidic systems, the so called “lab-on-a-chip” devices. These devices integrate laboratory functions into a single chip, and are capable of various biochemical analysis and synthesis, such as sample injection and preparation, single cell/molecule observation, bioparticle sequencing and sorting etc. The evolvement of lab-on-a-chip concept implies the use of novel fabrication techniques for the construction of versatile analytical components in a fast and reproducible manner. Endowed with unique three-dimensional fabrication abilities, Proton Bea…

Nano-imaging of single cells using STIM

2007

Scanning transmission ion microscopy (STIM) is a technique which utilizes the energy loss of high energy (MeV) ions passing through a sample to provide structural images. In this paper, we have successfully demonstrated STIM imaging of single cells at the nano-level using the high resolution capability of the proton beam writing facility at the Centre for Ion Beam Applications, National University of Singapore. MCF-7 breast cancer cells (American Type Culture Collection [ATCC]) were seeded on to silicon nitride windows, backed by a Hamamatsu pin diode acting as a particle detector. A reasonable contrast was obtained using 1 MeV protons and excellent contrast obtained using 1 MeV alpha parti…

Lithography exposure characteristics of poly(methyl methacrylate) (PMMA) for carbon, helium and hydrogen ions

2012

Abstract Poly(methyl methacrylate) is a common polymer used as a lithographic resist for all forms of particle (photon, ion and electron) beam writing. Faithful lithographic reproduction requires that the exposure dose, Θ, lies in the window Θ 0 ⩽ Θ Θ × 0 , where Θ 0 and Θ × 0 represent the clearing and cross-linking onset doses, respectively. In this work we have used the programmable proximity aperture ion beam lithography systems in Chiang Mai and Jyvaskyla to determine the exposure characteristics in terms of fluence for 2 MeV protons, 3 MeV 4 He 2 + and 6 MeV 12 C 3 + ions, respectively. After exposure the samples were developed in 7:3 by volume propan-2-ol:de-ionised water mixture. At…