\pi^0 \pi^0 Production in Proton-Proton Collisions at Tp=1.4 GeV

The reaction pp->pppi0pi0 has been investigated at a beam energy of 1.4 GeV using the WASA-at-COSY facility. The total cross section is found to be (324 +- 21_systematic +- 58_normalization) mub. In order to to study the production mechanism, differential kinematical distributions have been evaluated. The differential distributions indicate that both initial state protons are excited into intermediate Delta(1232) resonances, each decaying into a proton and a single pion, thereby producing the pion pair in the final state. No significant contribution of the Roper resonance N*(1440) via its decay into a proton and two pions is foundComment: Submitted to PL

Data on step-by-step atomic force microscopy monitoring of changes occurring in single melanoma cells undergoing ToF SIMS specialized sample preparation protocol

Data included in this article are associated with the research article entitled ‘Protocol of single cells preparation for time-of-flight secondary ion mass spectrometry’ (Bobrowska et al., 2016 in press) [1]. This data file contains topography images of single melanoma cells recorded using atomic force microscopy (AFM). Single cells cultured on glass surface were subjected to the proposed sample preparation protocol applied to prepare biological samples for time-of-flight secondary ion mass spectrometry (ToF SIMS) measurements. AFM images were collected step-by-step for the single cell, after each step of the proposed preparation protocol. It consists of four main parts: (i) paraformaldehyde fixation, (ii) salt removal, (iii) dehydrating, and (iv) sample drying. In total 13 steps are required, starting from imaging of a living cell in a culture medium and ending up at images of a dried cell in the air. The protocol was applied to melanoma cells from two cell lines, namely, WM115 melanoma cells originated from primary melanoma site and WM266-4 ones being the metastasis of WM115 cells to skin. Keywords: ToF SIMS, Single cells preparation, AFM imagin

Acciones de la SUDECO en el desarrollo del Centro-Oeste en el estado de Goiás

v. 31,n. 2, p.179-191, jul./dez. 2011.Submitted by Marlene Santos ([email protected]) on 2013-08-06T21:28:25Z No. of bitstreams: 1 16852-69171-2-PB.pdf: 463297 bytes, checksum: 22ea3851dec90bd0207855cd674ef2cf (MD5)Approved for entry into archive by Claudia Moura ([email protected]) on 2013-08-09T19:19:50Z (GMT) No. of bitstreams: 1 16852-69171-2-PB.pdf: 463297 bytes, checksum: 22ea3851dec90bd0207855cd674ef2cf (MD5)Approved for entry into archive by Claudia Moura ([email protected]) on 2013-08-09T19:20:26Z (GMT) No. of bitstreams: 1 16852-69171-2-PB.pdf: 463297 bytes, checksum: 22ea3851dec90bd0207855cd674ef2cf (MD5)Made available in DSpace on 2013-08-09T19:20:42Z (GMT). No. of bitstreams: 1 16852-69171-2-PB.pdf: 463297 bytes, checksum: 22ea3851dec90bd0207855cd674ef2cf (MD5) Previous issue date: 2011-12CAPES/CNPq; Programa de Apoio às Publicações Periódicas Científicas (PROAPUPEC) da UFGA Superintendência de Desenvolvimento do Centro-Oeste (SUDECO) desempenhou um papel importante na produção do território goiano. Aproximadamente por uma década 1975/1985 Goiás foi palco de dois grandes programas implementados por este órgão: o Programa de Desenvolvimento das Áreas de Cerrado (POLOCENTRO), criado com o objetivo de ocupar as zonas com cobertura vegetal predominante de Cerrado, incorporando estas terras à fronteira agrícola, a partir do emprego de modernas técnicas de produção; e o Programa da Região Geoeconômica de Brasília (PERGEB), que norteou ações no sentido de desenvolver as áreas limítrofes ao Distrito Federal, formando uma “zona tampão” que preservasse o caráter político, administrativo e cultural arquitetado para a capital da República. _______________________________________________________________________________________________________________________ ABSTRACT _______________________________________________________________________________________________________________________ The Superintendência de Desenvolvimento do Centro-Oeste – SUDECO – played an important role in the production in the state of Goiás. For nearly a decade, during the 1975/1985 period, Goiás took the center stage in two big programs implemented by this body: the Program for Development of Areas of Cerrado - POLOCENTRO – established with the objective of occupying areas with predominantly cerrado vegetation cover, incorporating these lands into the agricultural frontier, owing to the use of modern techniques of production; and the Program for the Geographical and Economical Region of Brasilia – PERGEB – who directed actions to develop the areas bordering the Federal District, forming a “buffer zone” in order to preserve the political, administrative and cultural characters, originally conceived for the federal capital. _______________________________________________________________________________________________________________________ ABSTRACT _______________________________________________________________________________________________________________________ La Superintendência de Desenvolvimento do Centro-Oeste – SUDECO – tuvo un papel importante en el segmento productivo en el territorio goiano. Aproximadamente por una década 1975/1985 Goiás fue el escenario de dos de los grandes programas implementados por esta entidad: El Programa de Desarrollo de las Areas del Cerrado (Ecoregion de la sabana Brasilera) – POLOCENTRO –, creado con el objetivo de ocupar las zonas con cobertura vegetal predominante de la vegetación de cerrado, incorporando estas tierras a la frontera agrícola, a partir del uso de técnicas modernas de producción; y el Programa da Região Geoeconômica de Brasília – PERGEB –, que direccionó acciones en el sentido de desarrollar áreas limítrofes al Distrito Federal, formando una “zona amortecedora” preservando el caráter político, administrativo y cultural arquitectado para la capital de la república