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- Peter D Ditlevsen, Paolo Giuliani
- Physical review. E, Statistical, nonlinear, and…
- 2001

We suggest the existence of a characteristic inner scale xi for helicity dissipation in a regime of hydrodynamic fully developed turbulence and estimate it on dimensional grounds. This scale is always larger than the Kolmogorov scale eta and their ratio eta/xi vanishes in the high Reynolds number limit, so the flow will always be helicity free in the small… (More)

- Gianluca Fossati, P. Lucietto, +7 authors Paolo Mascagni
- The Journal of biological chemistry
- 1995

The chaperonin activity of sequence-related chaperonin 10 proteins requires their aggregation into heptameric structures. We describe size-exclusion chromatography and ultracentrifugation studies that reveal that while Escherichia coli chaperonin 10 exists as a heptamer, the Mycobacterium tuberculosis chaperonin 10 is tetrameric in dilute solutions and in… (More)

Intermittency in fluid turbulence can be evidentiated through the analysis of Probability Distribution Functions (PDF) for velocity fluctuations, which display a strong non–gaussian behavior at small scales. In this paper we investigate the occurrence of intermittency in plasma turbulence by studying the departure from the gaussian distribution of PDF for… (More)

- P. Lucietto, Gianluca Fossati, Harold L. Ball, Paolo Giuliani, Paolo Mascagni
- The journal of peptide research : official…
- 1997

The Mycobacterium tuberculosis chaperonin 10 protein and fragments corresponding to sequences 59-99, 51-99 and 26-99 were synthesised by the solid-phase methodology using a double coupling protocol and without the aid of capping agents. After the final acid cleavage using the low TFMSA-high HF protocol the polypeptides were purified by either the ion… (More)

- En Chan, Gianluca Fossati, +4 authors Paolo Mascagni
- Biochemical and biophysical research…
- 1995

The peptide corresponding to the C-terminal half of M.tuberculosis hsp10 was synthesised based on the prediction that it might represent an independent structural region of the protein. This hypothesis was confirmed by aggregation and CD studies using this peptide and longer sequences of the protein. The peptide shares about 40-50% sequence homology with… (More)

In the present work an experimental-numerical approach is used to study the thermo-mechanical behaviour of NiTi wire for defining what parameters are the most important in actuator designing. Tests were carried out heating, by an electrical current, a wire having a diameter of 150 m, under constant stresses of 200 MPa. Data concerning strain, applied… (More)

- Paolo Giuliani, Mogens H. Jensen, Victor Yakhot
- Physical review. E, Statistical, nonlinear, and…
- 2002

We investigate the Gledzer-Ohkitani-Yamada (GOY) shell model within the scenario of a critical dimension in fully developed turbulence. By changing the conserved quantities, one can continuously vary an "effective dimension" between d=2 and d=3. We identify a critical point between these two situations where the flux of energy changes sign and the helicity… (More)

- Harold L. Ball, Paolo Giuliani, P. Lucietto, Gianluca Fossati, Paolo Mascagni
- Biomedical peptides, proteins & nucleic acids…
- 1994

Recently, the sequence of mitochondrial chaperonin 10 from Rattus norvegicus (rat cpn10), with N-terminal acetylation, has been published. Two syntheses of rat cpn10 were performed, the first using a classical carbodiimide-mediated double coupling protocol (Method A) and the second a more efficient HBTU/HOBT/single coupling procedure (Method B). The latter… (More)

- Paolo Giuliani
- 2001

We review the main properties of shell models for magnetohydrodynamic (MHD) turbulence. After a brief account on shell models with nearest neighbour interactions, the paper focuses on the most recent results concerning dynamical properties and intermittency of a model which is a generalization to MHD of the Gledzer-Yamada-Okhitani (GOY) model for… (More)

In a helical flow there is a subrange of the inertial range in which there is a cascade of both energy and helicity. In this range the scaling exponents associated with the cascade of helicity can be defined. These scaling exponents are calculated from a simulation of the GOY shell model. The scaling exponents for even moments are associated with the… (More)