3,411 research outputs found
Technical Report: Evaluation of peripheral dose for flattening filter free photon beams
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/135019/1/mp8963.pdfhttp://deepblue.lib.umich.edu/bitstream/2027.42/135019/2/mp8963_am.pd
Effective interaction for pf-shell nuclei
An effective interaction is derived for use in the full pf basis. Starting
from a realistic G-matrix interaction, 195 two-body matrix elements and 4
single-particle energies are determined by fitting to 699 energy data in the
mass range 47 to 66. The derived interaction successfully describes various
structures of pf-shell nuclei. As examples, systematics of the energies of the
first 2+ states in the Ca, Ti, Cr, Fe, and Ni isotope chains and energy levels
of 56,57,58Ni are presented. The appearance of a new magic number 34 is seen.Comment: 5 pages, 4 figures, to be published in Phys. Rev.
Revisiting fetal dose during radiation therapy: evaluating treatment techniques and a custom shield [JACMP, 17(5), 2016]
Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/139980/1/acm212191_am.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/139980/2/acm212191.pd
Dosimetric review of cardiac implantable electronic device patients receiving radiotherapy
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/135218/1/acm20254-sup-0002.pdfhttp://deepblue.lib.umich.edu/bitstream/2027.42/135218/2/acm20254.pd
Beta-delayed proton emission in the 100Sn region
Beta-delayed proton emission from nuclides in the neighborhood of 100Sn was
studied at the National Superconducting Cyclotron Laboratory. The nuclei were
produced by fragmentation of a 120 MeV/nucleon 112Sn primary beam on a Be
target. Beam purification was provided by the A1900 Fragment Separator and the
Radio Frequency Fragment Separator. The fragments of interest were identified
and their decay was studied with the NSCL Beta Counting System (BCS) in
conjunction with the Segmented Germanium Array (SeGA). The nuclei 96Cd, 98Ing,
98Inm and 99In were identified as beta-delayed proton emitters, with branching
ratios bp = 5.5(40)%, 5.5+3 -2%, 19(2)% and 0.9(4)%, respectively. The bp for
89Ru, 91,92Rh, 93Pd and 95Ag were deduced for the first time with bp = 3+1.9
-1.7%, 1.3(5)%, 1.9(1)%, 7.5(5)% and 2.5(3)%, respectively. The bp = 22(1)% for
101Sn was deduced with higher precision than previously reported. The impact of
the newly measured bp values on the composition of the type-I X-ray burst ashes
was studied.Comment: 15 pages, 14 Figures, 4 Table
Incidental diagnosis of pulmonary mycobacteriosis among patients scheduled for lung cancer surgery: results from a series of 3224 consecutive operations
Background: The relation between pulmonary mycobacteriosis and lung cancer has been scrutinized for many years but the current evidence is inconsistent as some studies found an association between the two, whereas others have reported an insignificant relation.
Materials and methods: 3224 consecutive patients undergoing elective thoracic surgery at the Department of Thoracic Surgery of a comprehensive cancer center over a four-year period were considered. Patients diagnosed with pulmonary mycobacteriosis with microbiological confirmation on their surgical specimen were further analyzed.
Results: 30 patients were diagnosed with pulmonary mycobacteriosis: six of them had a history of cancer. 18 patients received wedge resection, four patients received anatomic segmentectomy, two were submitted to lobectomy, one underwent pneumonectomy and five patients received other types of lesser procedures. Pulmonary mycobacteriosis and synchronous lung cancer were observed in four patients.
Conclusions: Although rare, the incidental diagnoses of pulmonary mycobacteriosis among patients scheduled for lung cancer resection is not negligible. Pulmonologists, anesthesiologists and thoracic surgeons should be aware of this possibility before planning pulmonary resections of histologically undiagnosed lung nodules
Revisiting fetal dose during radiation therapy: evaluating treatment techniques and a custom shield
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/135233/1/acm20001i.pd
Effects of a lactobacillus reuteri BR11 mutant deficient in the cystine-transport system in a rat model of inflammatory bowel disease
The final publication is available at link.springer.comBACKGROUND Inflammatory bowel disease (IBD) is a chronic inflammatory disorder of the gastrointestinal tract associated with altered composition of the gut microbiota. Lactobacillus reuteri BR11 (BR11) has recently been reported to reduce the severity of experimental IBD because of its probiotic properties possibly attributed to a mechanism of thiol production via its unique cysteine/cystine-transport system. AIM We compared BR11 and a BR11 mutant deficient in the cystine-uptake system (PNG201), for their capacity to reduce the severity of experimental colitis. METHODS Male Sprague–Dawley rats (n = 8 per group) were gavaged (1 ml/day) with skim milk, BR11 or PNG201 (1 × 109 CFU/ml) for 12 days. Rats consumed either water or 2% dextran sulfate sodium in drinking water from days 6 to 12 to induce colitis. Metabolism data, disease activity index, intestinal mucin profile, and histological analyses were assessed and compared by ANOVA. RESULTS Assessed histologically, DSS administration resulted in significant colonic deterioration, including loss of crypt area and increased damage severity. BR11 administration only partially alleviated the DSS effects, with a minor improvement in crypt area (P 0.05) against the DSS control for any of the end-points. However, the mutant strain induced significantly greater (P < 0.05) histological severity compared with BR11-treated colitic animals, indicative of possible exacerbation of colitis. CONCLUSIONS The cystine-uptake system only minimally affects the biological effects of BR11, as evidenced by histological and macroscopic colitic changes.Haydn L. Atkins, Mark S. Geier, Luca D. Prisciandaro, Ashok K. Pattanaik, Rebecca E. A. Forder, Mark S. Turner, Gordon S. Howart
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