Asymptotic properties of free monoid morphisms

Motivated by applications in the theory of numeration systems and recognizable sets of integers, this paper deals with morphic words when erasing morphisms are taken into account. Cobham showed that if an infinite word $w =g(f^\omega(a))$ is the image of a fixed point of a morphism $f$ under another morphism $g$, then there exist a non-erasing morphism $\sigma$ and a coding $\tau$ such that $w =\tau(\sigma^\omega(b))$. Based on the Perron theorem about asymptotic properties of powers of non-negative matrices, our main contribution is an in-depth study of the growth type of iterated morphisms when one replaces erasing morphisms with non-erasing ones. We also explicitly provide an algorithm computing $\sigma$ and $\tau$ from $f$ and $g$.Comment: 25 page

Cotransfer of the Eαd and Aβd genes into L cells results in the surface expression of a functional mixed-isotype Ia molecule

Ia molecules play a key role in antigen recognition by T lymphocytes. To analyze the structural features of the individual α and β chains relevant to the assembly of intact Ia molecules, mouse fibroblasts were contransfected with various combinations of haplotype- and isotype-mismatched Ia α/β gene pairs. Two important points emerged. First, the level of surface expression of a given haplotype-mismatched AαAβ pair appears to depend upon the α and β chain alleles involved. Second, transfection with some isotype-mismatched combinations such as EαdAβd results in a significant level of surface expression of a stable mixed-isotype dimer, which also appears to be normally expressed at a low level by an Iad-positive B lymphoma. Moreover, a T-cell hybridoma specific for human gamma globulin and restricted by the Ed molecule was found to be efficiently stimulated by the EαdAβd-positive transfectant in the presence of antigen. The stimulation was specifically inhibited by monoclonal antibodies directed to either the Ia or the L3T4 molecule. These findings suggest that the estimates of the potential number of Ia molecules available in an animal for restricting T-lymphocyte recognition of antigens must be revised

THE INTERNATIONAL CAPITAL MOVEMENT AS A FACTOR OF INFLUENCE ON INNOVATIVE DEVELOPMENT TENDENCY OF UKRAINE’S ECONOMY AND ITS INTEGRATION INTO THE WORLD ECONOMY

The article represents the research results concerning Ukraine’s solving strategic tasks to develop the financial mechanism of regulating the international capital movement and strengthening its positive effect on Ukraine’s economy development tendencies and innovative renewal of its domestic enterprises.The research results regarding Ukraine’s solving the strategic task of financial mechanisms of regulating the international capital movement and strengthening its positive effect on Ukraine’s economic development and innovative renewal of its economy are considered

PATIENTS’ DIRECT ACCESS TO THEIR ELECTRONIC MEDICAL RECORD USING THE INTERNET: A LITERATURE REVIEW

Patient-accessible medical record is an important element of evolution in the patient-physician relationship: patients want to become more active in their health care process. We want to highlight the results of studies that analyse the impact of patients having access to their electronic medical record using the Internet on patients, on physicians and on their relationship. The studies were identified using “Pub Med” and “Web of Knowledge”. The search was limited to articles published between 2000 and October 2012. We focused on articles about patients accessing, through Internet, their electronic medical record that are created and filled in by physicians. 26 studies were selected and analysed. Quantitative data were obtained through questionnaires, analysis of the log-ins and analysis of the records, while qualitative data were obtained through interviews and focus groups. The specificity of our review refers to the electronic means through which patients access their electronic medical (and particularly Internet)

Behavior of digital sequences through exotic numeration systems

peer reviewedMany digital functions studied in the literature, e.g., the summatory function of the base-k sum-of-digits function, have a behavior showing some periodic fluctuation. Such functions are usually studied using techniques from analytic number theory or linear algebra. In this paper we develop a method based on exotic numeration systems and we apply it on two examples motivated by the study of generalized Pascal triangles and binomial coefficients of words

Caractérisation d'une colle structurale polyuréthane

National audienceLe projet MP32 du pôle de compétitivité EMC2 vise la maîtrise des assemblages multimatériaux pour ses industriels partenaires. Des essais sur une colle structurale polyuréthane employée par l'un d'eux ont fait ressortir un comportement mécanique de type viscoélastoplastique avec une entrée en plasticité sensible à la pression hydrostatique. Une modélisation originale en a été proposée, avec notamment un critère de plasticité qui est dérivé de celui de Drucker-Prager. La procédure d'identification des paramètres de la loi de comportement dépendants du matériau est ici détaillée. Le dispositif de sollicitation multiaxiale d'interfaces Arcan-Mines est employé pour l'identification du critère. La modélisation et l'identification sont validées par la simulation d'un essai fait sur assemblage à quatre recouvrements de colle

Carte archéologique des îles Éparses

En 1987, Michel L’Hour avait conduit des expertises sur l’atoll des Bassas da India (L’Hour et al. 1987), et dès la fin des années 1980, le Drassm a entrepris de dresser à partir des archives un premier inventaire des sites archéologiques sous-marins potentiels de l’aire mahoraise et des îles Éparses du canal de Mozambique. Les missions du ministère chargé de la Culture en mer, et donc du Drassm, soulignent sa responsabilité dans les eaux bordant Mayotte, et les Terres australes et antarctiqu..