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The Common Destiny of Un/common Cultures
Vincenzo Romania
Cultural Studies Review , 2011,
Abstract: A review of Kamala Viswewaran, Un/Common Cultures. Racism and the Rearticulation of Cultural Difference.
The Common destiny of un/common cultures
Romania, Vincenzo
Cultural Studies Review , 2011,
Abstract: A review of Kamala Viswewaran, 'Un/Common cultures : racism and the rearticulation of cultural difference'.
Role of Endoplasmic Reticulum Aminopeptidases in Health and Disease: from Infection to Cancer
Loredana Cifaldi,Paolo Romania,Silvia Lorenzi,Franco Locatelli,Doriana Fruci
International Journal of Molecular Sciences , 2012, DOI: 10.3390/ijms13078338
Abstract: Endoplasmic reticulum (ER) aminopeptidases ERAP1 and ERAP2 (ERAPs) are essential for the maturation of a wide spectrum of proteins involved in various biological processes. In the ER, these enzymes work in concert to trim peptides for presentation on MHC class I molecules. Loss of ERAPs function substantially alters the repertoire of peptides presented by MHC class I molecules, critically affecting recognition of both NK and CD8 + T cells. In addition, these enzymes are involved in the modulation of inflammatory responses by promoting the shedding of several cytokine receptors, and in the regulation of both blood pressure and angiogenesis. Recent genome-wide association studies have identified common variants of ERAP1 and ERAP2 linked to several human diseases, ranging from viral infections to autoimmunity and cancer. More recently, inhibition of ER peptide trimming has been shown to play a key role in stimulating innate and adaptive anti-tumor immune responses, suggesting that inhibition of ERAPs might be exploited for the establishment of innovative therapeutic approaches against cancer. This review summarizes data currently available for ERAP enzymes in ER peptide trimming and in other immunological and non-immunological functions, paying attention to the emerging role played by these enzymes in human diseases.
Banking system in Romania and implementation of electronic payment
Banking system in Romania and implementation of electronic payment Nita Georgian
Journal of Knowledge Management, Economics and Information Technology , 2011,
Abstract: Romania's banking system is a two-tier system, including the National Bank and credit institutions. This system was introduced in December 1990, the first step of the banking reform. The legislative framework governing the banking system comprises: Law on National Bank of Romania - Law no. 312 of 28 June 2004 Ordinance on credit institutions and capital adequacy - Government Emergency Ordinance no. 99 of 6 December 2006; Law for the approval of Government Emergency Ordinance no. 99 of 6 December 2006 - Law no. 227 of 4 July 2007. On the Romanian market also operates non-bank financial institutions such as mutual assistance funds, pawnshops, financial leasing companies, credit companies for individuals, micro-finance companies, mortgage companies, companies offering factoring operations, finance companies specializing in commercial transactions, and others.
Anti-periodic solutions for second order differential inclusions
Jean-Francois Couchouron,Radu Precup, Cluj, Romania
Electronic Journal of Differential Equations , 2004,
Abstract: In this paper, we extend the existence results presented in [9] for $L^{p}$ spaces to operator inclusions of Hammerstein type in $W^{1,p}$ spaces. We also show an application of our results to anti-periodic boundary-value problems of second-order differential equations with nonlinearities depending on $u'$.
Quantum Gravity and Inflation
M. G. Romania,N. C. Tsamis,R. P. Woodard
Physics , 2012, DOI: 10.1007/978-3-642-33036-0_13
Abstract: We review some perturbative results obtained in quantum gravity in an accelerating cosmological background. We then describe a class of non-local, purely gravitational models which have the correct structure to reproduce the leading infrared logarithms of quantum gravitational back-reaction during the inflationary regime. These models end inflation in a distinctive phase of oscillations with slight and short violations of the weak energy condition and should, when coupled to matter, lead to rapid reheating. By elaborating this class of models we exhibit one that has the same behaviour during inflation, goes quiescent until the onset of matter domination, and induces a small, positive cosmological constant of about the right size thereafter. We also briefly comment on the primordial density perturbations that this class of models predict.
Primordial Gravitational Waves Enhancement
Maria G. Romania,N. C. Tsamis,R. P. Woodard
Physics , 2011, DOI: 10.1088/0264-9381/30/2/025004
Abstract: We reconsider the enhancement of primordial gravitational waves that arises from a quantum gravitational model of inflation. A distinctive feature of this model is that the end of inflation witnesses a brief phase during which the Hubble parameter oscillates in sign, changing the usual Hubble friction to anti-friction. An earlier analysis of this model was based on numerically evolving the graviton mode functions after guessing their initial conditions near the end of inflation. The current study is based on an equation which directly evolves the normalized square of the magnitude. We are also able to make a very reliable estimate for the initial condition using a rapidly converging expansion for the sub-horizon regime. Results are obtained for the energy density per logarithmic wave number as a fraction of the critical density. These results exhibit how the enhanced signal depends upon the number of oscillatory periods; they also show the resonant effects associated with particular wave numbers.
Possible Enhancement of High Frequency Gravitational Waves
Maria G. Romania,N. C. Tsamis,R. P. Woodard
Physics , 2010, DOI: 10.1088/0264-9381/28/7/075013
Abstract: We study the tensor perturbations in a class of non-local, purely gravitational models which naturally end inflation in a distinctive phase of oscillations with slight and short violations of the weak energy condition. We find the usual generic form for the tensor power spectrum. The presence of the oscillatory phase leads to an enhancement of gravitational waves with frequencies somewhat less than 10^{10} Hz.
Computing the Primordial Power Spectra Directly
Maria G. Romania,N. C. Tsamis,R. P. Woodard
Physics , 2012, DOI: 10.1088/1475-7516/2012/08/029
Abstract: The tree order power spectra of primordial inflation depend upon the norm-squared of mode functions which oscillate for early times and then freeze in to constant values. We derive simple differential equations for the power spectra, that avoid the need to numerically simulate the physically irrelevant phases of the mode functions. We also derive asymptotic expansions which should be valid until a few e-foldings before first horizon crossing, thereby avoiding the need to evolve mode functions from the ultraviolet over long periods of inflation.
Functional Characterization of Porcine (Sus scrofa) BCL10  [PDF]
Pellegrino Mazzone, Ivan Scudiero, Angela Ferravante, Marina Paolucci, Luca E. D’Andrea, Ettore Varricchio, Gianluca Telesio, Maddalena Pizzulo, Tiziana Zotti, Carla Reale, Pasquale Vito, Romania Stilo
Open Journal of Immunology (OJI) , 2015, DOI: 10.4236/oji.2015.52007
Abstract: Human BCL10 (hBCL10) protein is a signal transduction molecule originally identified because of its direct involvement in a subset of mucosa-associated lymphoid tissue (MALT) lymphomas, and later recognized as a crucial factor in regulating activation of NF-kB transcription factor following antigen receptor stimulation on lymphocytes. In this study, we characterized the NF-kB inducing activity of porcine BCL10 (pBCL10). pBCL10 oligimerizes, binds to components of the CARMA/ BCL10/MALT1 complex and forms cytoplasmic filaments. Functionally, in human cells pBCL10 is more effective in activating NF-kB compared to hBCL10, possibly due to the lack of carboxy-terminal inhibitory serine residues present in the human protein. Also, depletion experiments carried out through expression of short hairpin RNAs targeting hBCL10 indicate that pBcl10 can functionally replace the human protein and retains its higher NF-kB-inducing property in the absence of hBCL10. Our results contribute useful information on BCL10 protein in pigs, and may help the development of strategies based on the control of the immune response in pigs.
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