Search results for: G. Donzelli

Items from 1 to 15 out of 15 results

article

Time to get up and go: Screening to predict post-operative disposition in Gynecologic Oncology patients

L McNally, G. Donzelli, M. Swanson, J. Chapman, more

Gynecologic Oncology > 2016 > 143 > 1 > 213

article

Resistant ticks inhibit Metarhizium infection prior to haemocoel invasion by reducing fungal viability on the cuticle surface

Dana Ment, Alice C. L. Churchill, Galina Gindin, Eduard Belausov, more

Environmental Microbiology > 14 > 6 > 1570 - 1583

We studied disease progression of, and host responses to, four species in the Metarhizium anisopliae complex expressing green fluorescent protein (GFP). We compared development and determined their relative levels of virulence against two susceptible arthropods, the cattle tick Rhipicephalus annulatus and the lepidopteran Galleria mellonella, and two resistant ticks, Hyalomma excavatum and Rhipicephalus sanguineus...

article

Hydrophobin genes of the entomopathogenic fungus, Metarhizium brunneum, are differentially expressed and corresponding mutants are decreased in virulence

Ali Sevim, Bruno G. G. Donzelli, Dongliang Wu, Zihni Demirbag, more

Current Genetics > 2012 > 58 > 2 > 79-92

Hydrophobins are small, cysteine-rich, secreted proteins, ubiquitously produced by filamentous fungi that are speculated to function in fungal growth, cell surface properties, and development, although this has been rigorously tested for only a few species. Herein, we report identification of three hydrophobin genes from the entomopathogenic fungus, Metarhizium brunneum, and functional characterization...

article

Central blood oxygen saturation vs crying in preterm newborns

S. Orlandi, L. Bocchi, G. Donzelli, C. Manfredi

Biomedical Signal Processing and Control > 2012 > 7 > 1 > 88-92

Infant cry characteristics reflect the development and possibly the integrity of the central nervous system. This study evaluates the distress occurring during cry in preterm newborn infants, as related to decrease of central blood oxygenation. A recording system was developed, that allows synchronised, non-invasive monitoring of blood oxygenation and audio recordings of newborn infant's cry. Cry...

article

Metamaterial made of paired planar conductors: Particle resonances, phenomena and properties

G. Donzelli, A. Vallecchi, F. Capolino, A. Schuchinsky

Metamaterials > 2009 > 3 > 1 > 10-27

The properties and characteristics of a recently proposed anisotropic metamaterial based upon layered arrays of tightly coupled pairs of “dogbone” shaped stripe conductors have been explored in detail. It has been found that a metamaterial composed of such stacked layers exhibits artificial magnetism and may support backward wave propagation. The equivalent network models of the constitutive conductor...

article

Insulin-resistant hyperglycaemia complicating neonatal onset of methylmalonic and propionic acidaemias

L. Filippi, E. Gozzini, C. Cavicchi, A. Morrone, more

Journal of Inherited Metabolic Disease > 2009 > 32 > 1 > 179-186

Summary Background: Insulin-resistant hyperglycaemia may occasionally complicate the clinical course of organic acidaemias. Study Design: Clinical observation. Results: Two term infants, one suffering from acute early-onset methylmalonic acidaemia, the other suffering from acute early-onset propionic acidaemia, presented acutely with dehydration, ketoacidosis, and hyperammonaemia. Urinary organic...

article

Production of Mutagenic Metabolites by Metarhizium anisopliae

Stuart B. Krasnoff, Christopher H. Sommers, Yong-Sun Moon, Bruno G. G. Donzelli, more

Journal of Agricultural and Food Chemistry > 2008 > 56 > 3 > 1158 - 1158

article

Serinocyclins A and B, Cyclic Heptapeptides from Metarhizium anisopliae

Stuart B. Krasnoff, Ivan Keresztes, Richard E. Gillilan, Doletha M. E. Szebenyi, more

Journal of Natural Products > 2007 > 70 > 12 > 1919 - 1924

article

Elimination of Scan Blindness in Phased Array Antennas Using a Grounded-Dielectric EBG Material

G. Donzelli, F. Capolino, S. Boscolo, M. Midrio

IEEE Antennas and Wireless Propagation Letters > 2007 > 6 > 106 - 109

In printed phased arrays, scan blindness occurs when the propagation constant of a Floquet mode coincides with that of a mode supported by the homogeneous substrate, resulting in large input mismatch and in a propagating mode with complex propagation constant. In our study we analyze the possibility to replace a standard homogeneous dielectric substrate with a grounded dielectric EBG substrate to...

chapter

Design of patch antennas and thinned array of patches in a Fabry-Perot Cavity covered by a partially reflective surface

R. Gardelli, G. Donzelli, M. Albani, F. Capolino

2006 First European Conference on Antennas and Propagation > 1 - 5

2006 First European Conference on Antennas and Propagation Conference

Antennas with large gain are obtained here with one or few radiators. The main idea consists of inserting simple radiating elements, as patches, inside a Fabry-Perot cavity (FPC) resonator. This consists of a ground plane covered by a partially reflecting surface (PRS). We provide here some simple rules for the design of such systems, paying attention to a) the required bandwidth and gain, and b)...

article

Production of Mutagenic Metabolites by Metarhizium anisopliae

Stuart B. Krasnoff, Christopher H. Sommers, Yong-Sun Moon, Bruno G. G. Donzelli, more

Journal of Agricultural and Food Chemistry > 2006 > 54 > 19 > 7083 - 7088

chapter

High directivity at broadside with new radiators made of dielectric EBG materials

G.M. Sardi, G. Donzelli, F. Capolino

2006 IEEE Antennas and Propagation Society International Symposium > 373 - 376

2006 IEEE Antennas and Propagation Society International Symposium

In this paper, two different kinds of EBG materials are considered that support slowly attenuating, very fast, leaky waves, such that they produce a narrow beam at broadside. Here, the EBG material is not used as a cover of a Fabry-Perot cavity, as in B. Temelkuaran et al. (2000) and A.L. Feherembach et al. (2001), but it is the EBG material itself that supports the excited leaky wave. The two proposed...

article

Development of kink in the output I-V characteristics of pseudomorphic HEMT's after hot-electron accelerated testing

G. Meneghesso, B. Cogliati, G. Donzelli, D. Sala, more

Microelectronics Reliability > 1997 > 37 > 10-11 > 1679-1682

Large decreases in the drain current in the linear and low V _d _s region followed by a kink in the output I _d -V _d _s characteristics have been found after hot electron stress test in AlGaAs/InGaAs/GaAs power pseudomorphic HEMT's. Decrease in the transconductance measured in linear region, increase in the drain parasitic resistance and trasconductance frequency dispersion...

chapter

Non-Alloyed Ge/Pd Ohmic Contact for GaAs MESFET's

A. Paccagnella, C. Canali, G. Donzelli, E. Zanoni, more

ESSDERC '88: 18th European Solid State Device Research Conference > c4-441 - c4-444

18th European Solid State Device Research Conference

GaAs MESFET's with non-alloyed ohmic contacts have been achieved through a solid phase reaction of the Ge/Pd/GaAs(xtl) structure upon annealing at 325?? C for 30 min. Different Au-based overlayers over Ge/Pd have been tested for device applications and compared with a conventional AuGeNi contact. The thermal stability of the contact resistivity has been evaluated through long-term storages at 300??C.

article

Gold-based gate-sinking enhanced by inhomogeneities in power MESFETs

C. Canali, G. Donzelli, F. Fantini, M. Vanzi, more

Electronics Letters > 1987 > 23 > 2 > 83 - 84

Gate contact degradation of power MESFETs with gold-based gate metallisations is enhanced by local inhomogeneities, such as thermal gradients and border effects.

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