Three sequences of Ca II K images obtained on May 3, May 19 and June 7, 1997 with the PSPT (Precision Solar Photometric Telescope) instrument at the Rome Observatory have been used to study variations of the chromospheric network on a short time scale. We have applied to each PSPT image an automated algorithm developed to derive the skeleton representative of the network pattern and to identify...

Cancer of the brain and central nervous system (CNS) is the second most common of all pediatric cancers. Treatment of many of these cancers includes radiation therapy of which radiation induced cerebral necrosis (RICN) can be a severe and potentially devastating side effect. Risk factors for RICN include brain volume irradiated, the dose given per fraction and total dose. Thirteen pediatric pat...

Abstract Background: in this study, two proton beam delivery designs, i.e. passive scattering therapy (PSPT) and pencil scanning (PBS), were quantitatively compared terms of dosimetric indices. The GATE Monte Carlo (MC) particle transport code was used to simulate the system; developed simulation engines benchmarked with respect experimental measurements. Method: a water phantom system energy p...

INTRODUCTION: Several RFLFs have been described in the human phosphoglycerate kinase 1 (PGK1) gene in Xql3. Whereas the PstI polymorphism as detected with PGK1 cDNA (Hutz et al.) was complicated by multiple X-linked and autosomal constant bands, only two bands are seen with a fourth-intron genomic probe. We have compared this PstI RFLP to the 5' Bgll RFLP detected by pSPT-PGK (Vogelstein et al....

Constructivist-based approaches to teaching typically make extensive use of problem-based learning (PBL) and learning-by-doing (LBD) which were used investigate their effects on psycho-productive skills in Agricultural science secondary school. The research design adopted was a pre-test, post-test, non-randomised control group quasi-experimental. sample comprised eighty-four students from three...

Photoinduced structural phase transition (PSPT)s are reviewed in connection with recent experimental results. There are two key concepts: the hidden multi-stability of the ground state, and the proliferations of optically excited states. Taking the ionic (I)-neutral (N) phase transition in an organic charge-transfer (CT) crystal TTF-CA, as an example, we, briefly look back the essence of its PS...

Post-mastectomy radiotherapy (PMRT) has been shown to improve disease-free survival and overall survival for locally advanced breast cancer. However, long term survivors may develop life threatening acute and chronic treatment-related toxicities after radiotherapy, like cardiac toxicity and second cancers. The more advanced techniques like volumetric arc therapy (VMAT), and proton therapy have ...

A sequence of Ca K images obtained in a period of minimum solar activity , from July to November 1996, at the Rome Observatory with the PSPT (Precision Solar Photometric Telescope) prototype instrument have been used to analyze the geometrical properties of cells identiied by the chromospheric network. In particular , we used 256 256 sub-arrays of the calibrated full disk PSPT images. These sub...

Presented in this paper is a joint algorithm optimization and architecture design framework for analysis of repetitive regularities. Two closely coupled algorithm optimization techniques, referred to as the prime subspace periodicity transform (PSPT) and circular periodicity transform (CPT), are developed that significantly reduce computational complexity while enable the extraction of a wide s...