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It is well known that an elastic sheet loaded in tension will wrinkle and that the length scale of the wrinkles tends to zero with vanishing thickness of the sheet [Cerda and Mahadevan, Phys. Rev.â€¦ (More)

- Peter Bella, Robert V. Kohn
- J. Nonlinear Science
- 2014

We study the wrinkling of a thin elastic sheet caused by a prescribed non-Euclidean metric. This is a model problem for the patterns seen, for example, in torn plastic sheets and the leaves ofâ€¦ (More)

- Giovanni Lagalla, Francesco Ottavio Logullo, Peter Bella, Leandro Provinciali, Maria Grazia Ceravolo
- Neurological Sciences
- 2002

The objective of this double-blind, randomized, placebo-controlled study was to test the efficacy of high-dose prednisone, administered as early as possible, in modifying the natural progression ofâ€¦ (More)

- Peter Bella, Daniel KrÃ¡l, Bojan Mohar, KatarÃna QuittnerovÃ¡
- Eur. J. Comb.
- 2007

Department of Mathematical Analysis, Faculty of Mathematics and Physics, Charles University, SokolovskÃ¡ 83, 186 75 Prague, Czech Republic. E-mail: XXYY@karlin.mff.cuni.cz. Department ofâ€¦ (More)

- Dr. M. Bellesi, Francesco Ottavio Logullo, Peter Bella, Leandro Provinciali
- Journal of Neurology
- 2005

Sirs: Tumor Necrosis Factor alpha (TNFalpha) is a cytokine released by activated monocytes, macrophages, and T-lymphocytes. It is involved in several processes, but plays an important roleâ€¦ (More)

- Dr. A. Quattrini, Aldo Paggi, Angela Ortenzi, Peter Bella, Fiona Cianci, Lucio Forastieri
- The Italian Journal of Neurological Sciences
- 1981

100 MS patients were followed up for an average of 5 years. We considered age at onset, duration of the disease, number of attacks, neurological and psychic status, CT and EEG findings and triedâ€¦ (More)

We are interested in the energetic cost of a martensitic inclusion of volume V in austenite for the cubic-to-tetragonal phase transformation. In contrast with the work of [KnÃ¼pfer, Kohn, Otto: Comm.â€¦ (More)

- Peter Bella, Benjamin J. Fehrman, Julian Fischer, Felix Otto
- SIAM J. Math. Analysis
- 2017

We consider the elastic energy of a hanging drape â€“ a thin elastic sheet, pulled down by the force of gravity, with fine-scale folding at the top that achieves approximately uniform confinement. Thisâ€¦ (More)

- Peter Bella, KataÅ•Ä±na BellovÃ¡
- 2010

We study the wrinkling of a thin elastic sheet caused by a prescribed nonEuclidean metric. This is a model problem for the folding patterns seen, e.g., in torn plastic membranes and the leaves ofâ€¦ (More)