Showing result 1 - 5 of 55 essays containing the word Sn.

1. ## 1. Perron–Frobenius theorem and Z≥0[S3]-semimodules

University essay from Uppsala universitet/Algebra, logik och representationsteori

Keywords : ;

Abstract : In this thesis, the Perron–Frobenius theorem which in its most general formstates that the spectral radius of a non-negative real square matrix is an eigenvaluewith a non-negative eigenvector, is proven. Related properties arederived, in particular the Collatz–Wielandt formula and a general form of anon-negative idempotent matrices. READ MORE

2. ## 2. Molecular Mechanisms of Endophilin B1-Bax Macromolecular Complexes in Membrane Permeabilization and Cell Death

University essay from Uppsala universitet/Institutionen för biologisk grundutbildning

Keywords : ;

Abstract : A crucial step during apoptosis is the accumulation of the pro-apoptotic protein Bax on the mitochondria where it triggers permeabilization of the outer membrane. This causes the release of cytochrome c into the cytosol and is considered a point of no return in programmed cell death. READ MORE

3. ## 3. A hashing algorithm based on a one-way function in the symmetric group Sn

University essay from Linnéuniversitetet/Institutionen för matematik (MA)

Keywords : cryptography; hashing; symmetric group; one way function;

Abstract : We have found an operation between permutations in the symmetric group Sn upon which we have experimentally derived results that can be linked to desirable properties in cryptography, mainly in the domain of one-way functions. From it, we have implemented a beta version of an algorithm for a hashing function by exploiting the operation’s low computational cost for speed and its properties for security. READ MORE

4. ## 4. Template-assisted Electrodeposition and Model Electrodes Studied by Electron Microscopy and High Energy X-ray Diffraction

University essay from Lunds universitet/Fasta tillståndets fysik; Lunds universitet/Fysiska institutionen

Keywords : Physics and Astronomy;

Abstract : There is a great interest in studying detailed changes at electrode surfaces during electrochemical processes to better understand the electrochemical reactions at the electrode surface-liquid interface and improve the electrode efficiency. The Au(110) surface has a known (1$\times$2) missing row reconstruction in vacuum conditions, which can change into higher-order (1$\times$3), (1$\times$5), and (1$\times$7) depending on environment. READ MORE

5. ## 5. Quantification of the expression of hsa-mir-34c-5p in neuroblastoma cells

University essay from Högskolan i Skövde/Institutionen för biovetenskap

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Abstract : Neuroblastomas are the most common extra-cranial abnormal growths in immature nerve tissue within the sympathetic nervous system, in children ages 0-5. It is a heterogeneous malignancy, often emerging in and around adrenal glands, caused by rapid growth and division of nerve cells. READ MORE