نتایج جستجو برای: mcnp 4c

تعداد نتایج: 4108  

2017
Mimmi Tolvanen Katri Puijola Jason M Armfield Satu Lahti

BACKGROUND Dental fear accounts for 41% of the non-habitual dental attendance such as visiting only when in pain among adult Finns. Dentists should be able to recognize patients in risk for irregular attendance due to dental fear and measure their fear with valid and reliable instrument that capture the multidimensionality of dental fear. The study's aim was to translate the Index of Dental Anx...

Journal: :Clinical and experimental rheumatology 2005
Y T Konttinen J Ma P Ruuttilal M Hukkanen S Santavirta

OBJECTIVE Osteoarthritis (OA) is associated with destruction of type II collagen-rich hyaline articular cartilage. We hypothesized that classical interstitial collagenases cleave collagen type II, leading to the increased expression of the 3/4 native type II collagen fragment (COL2-3/4C) and the corresponding denatured type II collagen fragment (COL2-3/4M), which could correlate with different ...

2016
Weiqi Liao Renske E. G. Hamel Marcel G. M. Olde Rikkert Saskia M. Oosterveld Pauline Aalten Frans R. J. Verhey Philip Scheltens Nicole Sistermans Yolande A. L. Pijnenburg Wiesje M. van der Flier Inez H. G. B. Ramakers René J. F. Melis

BACKGROUND Heterogeneous disease trajectories of mild cognitive impairment (MCI) and dementia are frequently encountered in clinical practice, but there is still insufficient knowledge to understand the reasons and mechanisms causing this heterogeneity. In addition to correlates of the disorder, patient characteristics such as their health status, social environment, comorbidities and frailty m...

2001
John EdmondS

Previously, we have shown the preferential incorporation of label from [3-‘%]acetoacetate, D-( -)-3-hydroxy[3-%]butyrate, and [2-‘4C]glucose into sterols and fatty acids in brain in Id-day-old rats. In these experiments, we assumed that the labeled metabolites would be used from the blood in the form which was injected. However, during metabolic processes, a labeled metabolite which is present ...

Journal: :Arthritis Research 2001
Danielle M Gerlag Eric Borges Paul P Tak H Michael Ellerby Dale E Bredesen Renata Pasqualini Erkki Ruoslahti Gary S Firestein

Because angiogenesis plays a major role in the perpetuation of inflammatory arthritis, we explored a method for selectively targeting and destroying new synovial blood vessels. Mice with collagen-induced arthritis were injected intravenously with phage expressing an RGD motif. In addition, the RGD peptide (RGD-4C) was covalently linked to a proapoptotic heptapeptide dimer, D(KLAKLAK)2, and was ...

2013
Randi J. Bertelsen Karin C. Lødrup Carlsen Antonia M. Calafat Jane A. Hoppin Geir Håland Petter Mowinckel Kai-Håkon Carlsen Martinus Løvik

BACKGROUND High-molecular-weight phthalates in indoor dust have been associated with asthma in children, but few studies have evaluated phthalate biomarkers in association with respiratory outcomes. OBJECTIVES We explored the association between urinary concentrations of phthalate metabolites and current asthma. METHODS In a cross-sectional analysis, 11 metabolites of 8 phthalates [includin...

2008
Ekaterina Ermilova Hamideh Afsarmanesh

During the last decades, a number of models is introduced in research, addressing different perspectives of the organizations’ competencies in collaborative networks. This paper introduces the “4C-model”, developed to address competencies of organizations, involved in Virtual organizations Breeding Environments (VBEs), from a new perspective. Design of the 4Cmodel aims at modeling those charact...

1999
John S. Hendricks Christopher N. Culbertson

The weight window variance reduction method in the general-purpose Monte Carlo N-Particle radiation transport code MCNP has recently been rewritten. In particular, it is now possible to generate weight window importance functions on a superimposed mesh, eliminating the need to subdivide geometries for variance reduction purposes. Our assessment addresses the following questions: (1) Does the n...

Journal: :iranian journal of medical physics 0
vahid moslemi m.sc. in medical radiation engineering, medical radiation dept., faculty of mechanical engineering, shiraz university, shiraz, iran ahmad esmaili-torshabi m.sc. in medical radiation engineering, medical radiation dept., faculty of mechanical engineering, shiraz university, shiraz, iran mohammad amin mosleh-shirazi assistant professor, radiotherapy and oncology dept., center of research in medical physics and engineering, shiraz university of medical sciences, shiraz, iran reza faghihi assistant professor, nuclear engineering, center of radiation research, shiraz university, shiraz, iran ahmad mosalaei professor, radiotherapy and oncology dept., shiraz university of medical sciences, shiraz, iran simin mehdizadeh m.sc., nuclear engineering, center of radiation research, shiraz university, shiraz, iran

introduction: in brachytherapy, radioactive sources are placed close to the tumor, therefore, small changes in their positions can cause large changes in the dose distribution. this emphasizes the need for computerized treatment planning. the usual method for treatment planning of cervix brachytherapy uses conventional radiographs in the manchester system. nowadays, because of their advantages ...

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