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Search Results: 1 - 10 of 3861 matches for " Alice Meda "
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Prevention of Mother-to-Child Transmission of Hepatitis B in the Urban District Health Baskuy Burkina Faso  [PDF]
Alice Nanelin Guingané, Nicolas Meda, Roger Sombié, Christiane Béré/Somé, Lydie Sia, Rose Ido/Da, Issa Guiraud, Alain Bougouma
Open Journal of Gastroenterology (OJGas) , 2016, DOI: 10.4236/ojgas.2016.66023
Abstract: Few studies have been conducted on the epidemiology in pregnancy in sub-Saharan Africa. This study aimed to improve the care of pregnant women infected with hepatitis B virus (VHB) and their newborns in the urban district health. Method: This study was conducted from 01/09/2014 to 01/09/2015. Study involved three types of data collection: a collection of data from health facilities involved in the project; repeated cross-sectional survey among health personnel; a pros- pective study of pregnant women identified positive for HBsAg and followed at the University Hospital Yalgado Ouédraogo (CHU-YO). Knowledge assessment was made among health staff and pregnant women using a knowledge score. Construction of the score came after a factorial analysis of multiple correspondences on population health workers surveyed in the first round (N = 119) on one hand and all pregnant women (N = 266) on the other hand. This had identified among the 79/19 questions, those that discriminated best knowledge of paramedics and pregnant women. For pregnant women, this score was then dichotomized from the center and logistic regression was performed to determine the sociodemographic, medical and obstetric characteristics that influenced it (p value < 005). Results: Health staff had been surveyed twice (N = 119/100). In general, the level of knowledge was good on targeted knowledge, both before and after training. No health worker routinely offered screening for hepatitis B among pregnant women attending antenatal clinics. Altogether 266 pregnant women HBsAg-positive were referred and followed CHU-YO. Half of the patients had a score lower than 2/17. Univariate analysis showed that variables such as education level influenced significantly the level of knowledge. Women with higher levels of education had a higher level of knowledge about the disease, compared to those of primary level [OR = 1.63; [1.34 to 1.99], p value < 0,001]. Newborns during the study period numbered 128 and the vaccine was made in the first 24 hours of life for 83.6% of them. Conclusion: routine screening for infection with VHB during pregnancy and improved knowledge of mothers is strongly reco- mmended in Burkina Faso.
Experimental Quantum Imaging exploiting multi-mode spatial correlation of twin beams
Giorgio Brida,Marco Genovese,Alice Meda,Ivano Ruo Berchera
Physics , 2010, DOI: 10.1103/PhysRevA.83.033811
Abstract: Properties of quantum states have disclosed new and revolutionary technologies, ranging from quantum information to quantum imaging. This last field is addressed to overcome limits of classical imaging by exploiting specific properties of quantum states of light. One of the most interesting proposed scheme exploits spatial quantum correlations between twin beams for realizing sub-shot-noise imaging of the weak absorbing objects, leading ideally to a noise-free imaging. Here we discuss in detail the experimental realization of this scheme, showing its capability to reach a larger signal to noise ratio with respect to classical imaging methods and, therefore, its interest for future practical applications.
Applications of Mogulskii, and Kurtz-Feng Large Deviation Results to Risk Reserve Processes with Aggregate Claims  [PDF]
Jorge Garcia, Ana Meda
Applied Mathematics (AM) , 2012, DOI: 10.4236/am.2012.312A291
Abstract: In this paper we examine the large deviations principle (LDP) for sequences of classic Cramér-Lundberg risk processes under suitable time and scale modifications, and also for a wide class of claim distributions including (the non-super- exponential) exponential claims. We prove two large deviations principles: first, we obtain the LDP for risk processes on D[0,1] with the Skorohod topology. In this case, we provide an explicit form for the rate function, in which the safety loading condition appears naturally. The second theorem allows us to obtain the LDP for Aggregate Claims processes on D[0,) with a different time-scale modification. As an application of the first result we estimate the ruin probability, and for the second result we work explicit calculations for the case of exponential claims.
Measurement of sub-shot-noise spatial correlations without subtraction of background
Giorgio Brida,Lucia Caspani,Alessandra Gatti,Marco Genovese,Alice Meda,Ivano Ruo Berchera
Physics , 2008, DOI: 10.1103/PhysRevLett.102.213602
Abstract: In this paper we present the first measurement of sub-shot-noise spatial correlations without any subtraction of background, a result opening the way to realize sub-shot-noise imaging of weak objects
Experimental estimation of entanglement at the quantum limit
Giorgio Brida,Ivo Degiovanni,Angela Florio,Marco Genovese,Paolo Giorda,Alice Meda,Matteo G. A. Paris,Alex Shurupov
Physics , 2009, DOI: 10.1103/PhysRevLett.104.100501
Abstract: Entanglement is the central resource of quantum information processing and the precise characterization of entangled states is a crucial issue for the development of quantum technologies. This leads to the necessity of a precise, experimental feasible measure of entanglement. Nevertheless, such measurements are limited both from experimental uncertainties and intrinsic quantum bounds. Here we present an experiment where the amount of entanglement of a family of two-qubit mixed photon states is estimated with the ultimate precision allowed by quantum mechanics.
[recensione – review] La citazione. Atti del XXXI Convegno Interuniversitario (Bressanone/Brixen, 11-13 luglio 2003) , a cura di G. Peron, Padova, Esedra, 2009
Ambra Meda
Parole Rubate : Rivista Internazionale di Studi sulla Citazione , 2010,
Abstract: ReviewRecensione
Protein-Mediated Interactions of Pancreatic Islet Cells
Paolo Meda
Scientifica , 2013, DOI: 10.1155/2013/621249
Abstract:
Protein-Mediated Interactions of Pancreatic Islet Cells
Paolo Meda
Scientifica , 2013, DOI: 10.1155/2013/621249
Abstract: The islets of Langerhans collectively form the endocrine pancreas, the organ that is soley responsible for insulin secretion in mammals, and which plays a prominent role in the control of circulating glucose and metabolism. Normal function of these islets implies the coordination of different types of endocrine cells, noticeably of the beta cells which produce insulin. Given that an appropriate secretion of this hormone is vital to the organism, a number of mechanisms have been selected during evolution, which now converge to coordinate beta cell functions. Among these, several mechanisms depend on different families of integral membrane proteins, which ensure direct (cadherins, N-CAM, occludin, and claudins) and paracrine communications (pannexins) between beta cells, and between these cells and the other islet cell types. Also, other proteins (integrins) provide communication of the different islet cell types with the materials that form the islet basal laminae and extracellular matrix. Here, we review what is known about these proteins and their signaling in pancreatic β-cells, with particular emphasis on the signaling provided by Cx36, given that this is the integral membrane protein involved in cell-to-cell communication, which has so far been mostly investigated for effects on beta cell functions. 1. Introduction In vertebrates, pancreatic beta cells are the sole source of the insulin hormone [1]. The modulation of insulin secretion as a function of the changing metabolic demand and environmental conditions, specifically the levels of circulating glucose, cannot be quantitatively fulfilled by a single beta cell. Indeed, the total amount of insulin of one cell (~10?pg) will not allow for establishment and maintenance of the basal circulating levels of the hormone (~1.25?mg/L in humans). Assuming that all beta cells of the million islets which are thought to be dispersed in a human pancreas contribute to these levels, this implies that about 125 cells should simultaneously secrete in each islet. After a meal, this number should increase by about 5 to 6-fold to rapidly establish the postprandial levels of insulin, which are required to maintain normoglycemia, and be tightly regulated to ensure the peripheral oscillations of the circulating levels of the hormone, which prevent the target tissues to establish a resistance to the hormone [2–4]. Eventually, the mechanism(s) controlling these surge and oscillations should also be able to synchronously turn off the secreting cells, in order to avoid dangerous hypoglycemia, once insulin has launched its
SEMINAR SEHARI: PENGEMBANGAN MODEL PENANGGULANGAN PENYAKIT TIDAK MENULAR UNTUK MENYONGSONG MILLENIUM III
Rustika Rustika,Meda Permana
Media of Health Research and Development , 2013,
Abstract: Pendahuluan
Using Media in the Foreign Language. Case Study Media Use of the Students of the Babes- Bolyai University, Romania
Meda MUCUNDORFEANU,Delia BALABAN
Essachess : Journal for Communication Studies , 2010,
Abstract: In the last few years, thanks to the Internet, access to foreign language media has become more and more easy, which is why the number of foreign language media users has increased. This research focuses on exploring the use of German speaking media by Romanian students from the German speaking departments of the Babes-Bolyai University in Cluj-Napoca. The theoretical background of the study is the Uses and Gratifications theory. The research methods applied were the focus group, followed by a survey applied to a representative number of students. Our research highlighted the fact that the students from German language programs often used German television and German websites. In regard to the German media in general, most respondents stated that they satisfy, in a very large mount, the needs described by the Uses and Gratifications model.
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