Search

Your search keyword '"Brandi, G"' showing total 1,327 results
Start Over Author "Brandi, G"
1,327 results on '"Brandi, G"'

260. Band Structure of Helimagnons in MnSi Resolved by Inelastic Neutron Scattering.

Author

Kugler, M., Brandi, G., Waizner, J., Janoschek, M., Georgii, R., Bauer, A., Seemann, K., Rosch, A., Pfleiderer, C., Böni, P., and Garst, M.

Subjects
*MANGANESE compounds, *TRANSITION metal compounds spectra, *ENERGY bands, *MAGNETIC crystals, *MAGNETIZATION, *MAGNONS, *INELASTIC neutron scattering
Abstract

A magnetic helix realizes a one-dimensional magnetic crystal with a period given by the pitch length λh. Its spin-wave excitations -- the helimagnons -- experience Bragg scattering off this periodicity leading to gaps in the spectrum that inhibit their propagation along the pitch direction. Using high-resolution inelastic neutron scattering the resulting band structure of helimagnons was resolved by preparing a single crystal of MnSi in a single magnetic-helix domain. At least five helimagnon bands could be identified that cover the crossover from flat bands at low energies with helimagnons basically localized along the pitch direction to dispersing bands at higher energies. In the low-energy limit, we find the helimagnon spectrum to be determined by a universal, parameter-free theory. Taking into account corrections to this low-energy theory, quantitative agreement is obtained in the entire energy range studied with the help of a single fitting parameter. [ABSTRACT FROM AUTHOR]

Published
2015
Full Text
View/download PDF

268. Targeting Nucleotide Dimers Containing Antiviral Nucleosides

Author

Rossi, L., primary, Serafini, S., additional, Franchetti, P., additional, Cappellacci, L., additional, Fraternale, A., additional, Casabianca, A., additional, Brandi, G., additional, Pierige, F., additional, Perno, C-F, additional, Balestra, E., additional, Benatti, U., additional, Millo, E., additional, Grifantini, M., additional, and Magnani, M., additional

Published
2005
Full Text
View/download PDF

276. 21 P Dilated intercellular spaces of human oesophageal epithelium as the first and most sensitive marker of damage in acid reflux oesophagitis

Author

Calabrese, C., primary, Bortolotti, M., additional, Fabbri, A., additional, Areni, A., additional, Cenacchi, G., additional, Mantovani, W., additional, Pisi, A.M., additional, Scialpi, C., additional, Brandi, G., additional, Rossi, C., additional, Miglioli, M., additional, and Di Febo, G., additional

Published
2002
Full Text
View/download PDF

293. Synbiotic yogurt consumption by healthy adults and the elderly: the fate of bifidobacteria and LGG probiotic strain.

Author

Granata, M., Brandi, G., Borsari, A., Gasbarri, R., and Gioia, D. Di

Subjects
*YOGURT, *FOOD consumption, *BIFIDOBACTERIUM, *LACTOBACILLUS rhamnosus, *PROBIOTICS, *DIETARY supplements
Abstract

Synbiotic dietary supplements are used to modulate the intestinal microbiota in adults; however, studies regarding elderly people are limited. The aim of this work is to determine the effect of regular consumption of yogurt containing Lactobacillus rhamnosus GG (LGG) and the fructooligosaccharide (FOS) Actilight® both in healthy adults and the elderly suffering from constipation. Yogurt was administered daily for 4 weeks; faecal samples were collected before starting, after 4-week administration and a 15-day wash out period, and analyzed for LGG and bifidobacteria counts. Constipation status in the elderly was recorded by a standardized questionnaire. Bifidobacteria did not increase in either groups; at the end of the intervention trial, LGG was detected in significantly different amount in the faeces of the elderly and adults, being higher in adults (95% vs. 30%). An increased evacuation number in the elderly was evidenced, probably due to the presence of FOS in yogurt. [ABSTRACT FROM AUTHOR]

Published
2013
Full Text
View/download PDF

297. Incidence and role of Salmonella in seafood safety

Author

Amagliani, G., Brandi, G., and Schiavano, G.F.

Subjects
*SALMONELLA, *SEAFOOD microbiology, *FOODBORNE diseases, *FOOD safety, *FOOD industry, *FOOD contamination, *ANTIBIOTICS, *PREVENTION
Abstract

Abstract: Seafood products are appreciated worldwide for their high nutritional value and are increasingly popular among consumers. Consumer preferences range from fresh products, eaten raw or minimally processed, to variously prepared (salted, smoked, cured, canned) and ready-to-eat (RTE) products. Moreover, seafood products are a major food category in international trade and are frequently shipped very long distances. All these factors expose seafood to various contaminants, including those of microbiological origins, such as Salmonella. The presence of Salmonella in seafood may derive from contamination occurring in the natural aquatic environment, in aquaculture or during processing. In addition, the isolation of Salmonella serovars that are resistant and multiresistant to antibiotics continues to raise concerns. In this review various aspects associated with the microbiological risk posed by the presence of Salmonella in seafood are examined. The most recent data of incidence are presented, and some prevention and control strategies are considered. [Copyright &y& Elsevier]

Published
2012
Full Text
View/download PDF

300. Selective killing of Mycobacterium avium--infected macrophages by inhibition of phosphorylated signal transducer and activator of transcription type 1.

Author

Dominici S, Brandi G, Schiavano GF, and Magnani M

Abstract

Mycobacterium avium infects mononuclear phagocytes, which thereby become reservoirs for this pathogen. Currently recommended therapy does not ensure the eradication of intracellular bacteria. Here, we report that M. avium infection in macrophages activates the signal transducer and activator of transcription type 1 (STAT-1) signaling pathway. Fludarabine, an antileukemic drug active against cells that express STAT-1, selectively kills M. avium-infected macrophages. These findings suggest that phosphorylated STAT-1 can enhance the survival of macrophages, promoting their role as persistent reservoirs of M. avium. This work invites research on new combination therapeutic approaches that consist of fludarabine, to kill the macrophage reservoir, and antibacterial agents, to eliminate mycobacteria released from the dead cells. Copyright © 2008 Infectious Diseases Society of America [ABSTRACT FROM AUTHOR]

Published
2008
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results