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- L Gagliardi, M Ambroso, J Mavro, F Furno, G Discalzi
- International journal of cosmetic science
- 1992

Synopsis A certain number of hairdressing parlour employers have been taken to court because their employees allegedly suffered from lung allergies caused by the vapours from PPD (paraphenylendiamine) which allegedly developed when applying hair dyes. These conclusions may be reached if the specific hazards of the rubber and particularly leather and fur… (More)

- J S Uehara, M A Ambroso, R P Ojha, D J Durian
- Physical review letters
- 2003

We report on craters formed by balls dropped into dry, noncohesive, granular media. By explicit variation of ball density rho(b), diameter D(b), and drop height H, the crater diameter is confirmed to scale as the 1/4 power of the energy of the ball at impact: D(c) approximately equal (rho(b)D(3)(b)H)(1/4). Against expectation, a different scaling law is… (More)

- M A Ambroso, R D Kamien, D J Durian
- Physical review. E, Statistical, nonlinear, and…
- 2005

We present data for the time dependence of wooden spheres penetrating into a loose noncohesive packing of glass beads. The stopping time is a factor of 3 longer than the time d/v0 needed to travel the total penetration distance d at the impact speed v0. The acceleration decreases monotonically throughout the impact. These kinematics are modeled by a… (More)

- M A Ambroso, C R Santore, A R Abate, D J Durian
- Physical review. E, Statistical, nonlinear, and…
- 2005

We present data for the penetration of a variety of spheres, dropped from rest, into a loose noncohesive granular medium. We improve upon earlier work [J. S. Uehara, Phys. Rev. Lett. 90, 194301 (2003)] in three regards. First, we explore the behavior vs sphere diameter and density more systematically, by holding one of these parameters constant while… (More)

- Michael Ambroso
- 2009

E8×E8 heterotic string and M-theory, when compactified on a CalabiYau threefold admitting an SU(4) vector bundle withWilson lines, can give rise to the exact MSSM spectrum with three right-handed neutrino chiral superields, one per family. Rank preserving Wilson lines require that the standard model group be augmented by a gauged U(1)B−L. Since there are no… (More)

- Michael Ambroso
- 2014

PHENOMENOLOGY OF HETEROTIC STRING THEORY: WITH EMPHASIS ON THE B-L/EW HIERARCHY Michael Ambroso Burt Ovrut, Advisor E8 × E8 heterotic string and M-theory, when appropriately compactified, can give rise to realistic, N = 1 supersymmetric particle physics. In particular, the exact matter spectrum of the MSSM is obtained by compactifying on Calabi-Yau… (More)

- Jeffry Urban, Michael Ambroso, Keith Galvin, Steven Nunes, Dennis DeRiggi, Nathan Platt
- 2011

The ability to predict the consequences of an atmospheric release of a toxic material accurately, as opposed to conservatively, is of increasing importance to decision-makers who need to plan for or respond to such incidents. A conservative estimate of casualties, for example, may involve multiplying the average population density by the area over which a… (More)

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