Enhanced effects on extracting \gamma from untagged B^0 and B_s decays

The weak phase \gamma can be determined using untagged B^0\to DK_S or B_s\to D\phi, D\eta^{(')} decays. In the past, the small lifetime difference y\equiv \Delta\Gamma/(2\Gamma) has been neglected in B^0, while the CP violating parameter \epsilon\equiv 1-|q/p|^2 has been neglected in both B^0-\bar B^0 and B_s-\bar B_s mixing. We estimate the effect of neglecting y and \epsilon. We find that in D decays to flavor states this introduces a systematic error, which is enhanced by a large ratio of Cabibbo-allowed to doubly Cabibbo-suppressed D decay amplitudes.Comment: one reference added, to be submitted for publication in Physics Letters

On The Use Of Some Optimal Strategies Of Fiscal Administration During Economic Crisis

Although the provisions of the Fiscal Procedure Code create the image of some norms with a somewhat "rigid" character, a series of options specific to modern finance behind the legal text require consideration of optimal strategies by the institutions of tax administration. Because of the contribution to the growth of the revenues to the consolidated budget, important especially during an economic crisis, we considered the analysis and modelling of several default options included in the Fiscal Procedure Code, both with respect to debt collection and to tax inspection. Increased efficiency has been analyzed both in terms of the possibility of application of enforcement measures, but also of appropriate strategies to combat tax evasion by fiscal control and introducing a "flat" tax. The modelling of decisions included, as instruments, the valuation of the assets in risky conditions, theory of games and ARMA econometric model. The study concludes that in the early periods of economic crisis it is not the ease of tax administration (rescheduling, delays, exemptions) that leads to an effective policy but rather government policies that reduce the probability of bankruptcy among companies. Regarding the tax inspection, the model used leads to possibilities of profound analysis of the dimensions of the control activity and the design of a flat tax. Financial modelling of several tax administration decisions resulted in a procedure by Order of the President of the National Agency for Tax Administration (ANAF) no. 1126/2008 and therefore the use of flexible models must consider, even in the budgetary sector, besides increasing profitability on earnings also the risk of insolvency.tax administration, insolvency risk, option theory, theory of games, flat tax

Research for preparation of cation-conducting solids by high-pressure synthesis and other methods

It was shown that two body-centered-cubic skeleton structures, the Im3 KSbO3 phase and the defect-pyrochlore phase A(+)B2X6, do exhibit fast Na(+)-ion transport. The placement of anions at the tunnel intersection sites does not impede Na(+)-ion transport in (NaSb)3)(1/6 NaF), and may not in (Na(1+2x)Ta2 5F)(Ox). The activation energies are higher than those found in beta-alumina. There are two possible explanations for the higher activation energy: breathing of the bottleneck (site face or edge) through which the A(+) ions must pass on jumping from one site to another may be easier in a layer structure and/or A(+)-O bonding may be stronger in the cubic structures because the O(2-) ion bonds with two (instead of three) cations of the skeleton. If the former explanation is dominant, a lower activation energy may be achieved by optimizing the lattice parameter. If the latter is dominant, a new structural principle may have to be explored

Diagnóstico molecular de Pantoea ananatis em milho, sorgo e Digitaria sp.

A doença conhecida como mancha-branca-do-milho (MWS), inicialmente descrita como mancha-de-phaeosphaeria (PLS), é uma das principais doenças do milho no Brasil e vem crescendo em importância para os produtos em diferentes países. A identificação correta do agente etiológico é uma etapa importante para predição e manejo adequado da doença. O fungo Phaeosphaeria maydis foi inicialmente descrito como o agente etiológico dessa doença (Rane et al., 1966). Contudo, o insucesso na reprodução de sintomas, a ocorrência do fungo restrita a algumas áreas de cultivo do milho e sua ausência em áreas de elevada incidência da doença geraram sérias dúvidas sobre a etiologia da mesma. Assim, a realização de estudos científicos detalhados possibilitaram a identificação correta do agente causal da doença como sendo a bactéria Pantoea ananatis (Paccola-Meirelles et al., 2001). A partir dessa data, a doença passou a ser denominada mancha-branca-do-milho. O desenvolvimento de métodos diagnósticos simples, precisos e rápidos podem acelerar a tomada de decisões para controle da doença. Nesse documento é apresentado um método de diagnóstico que apresenta as características descritas anteriormente e que consiste no uso de apenas um par de iniciadores (primers) para amplificar uma região do cromossomo bacteriano que constitui uma assinatura genômica da espécie P. ananatis.bitstream/item/70056/1/doc-142-1.pd

STRENGTHENING THE SUSTAINABILITY OF PUBLIC FINANCES BY MEANS OF FINANCIAL LAW FOCUSED ON THE CONTROL AND AUDIT EXERCISE

The activity to prevent embrittlement sustainability of public finances should manifest itself permanently, regardless of economic circumstances - national or European. This, more so as it was set by the Stability and Growth Pact (SGP), which introduces new rules on fiscal policy. Regulations and exercise adequate of financial control and public audit are intended to give certain guarantees on landing approach this topic (most on enhancing sustainability of public finances). Therefore, our approach aims to reveal some aspects of fiscal consolidation by means of financial law focused on exercise fiscal control and public audit. Our references aim the current regulatory of this important organization and functioning rule of law activities and results reported

Operating Islamic Jurisprudence in Non-Muslim Jurisdictions: Traditional Islamic Precepts and Contemporary Controversies in the United States

With the recent public furor in the United States regarding “Shari‘a,” studies into the content of Islamic jurisprudence concerning Muslims living under non-Muslim jurisdiction are more pertinent than ever in the U.S. context. As “anti-Shari‘a” rhetoric has increased in fervency, informed input into the debates could go some way in correcting the peddled misconceptions. The paper begins by assessing how Muslim scholars viewed a Muslim’s travel to and residence in non-Muslim lands, and the obligation to abide by the laws of the land. It will focus on the jihad (siyar) section in Islamic jurisprudence and the section on judiciary (qaḍā’/adab al-qāḍī), and overlapping discussions of relevance pertaining to criminal law and financial law. The section on jihad assesses the issue of jurisdiction in terms of whether Islamic law can be applied to crimes committed in non-Muslim lands. A study of the section on judiciary will show how Islamic jurisprudence provides a means for Muslims to adjudicate among themselves in a non-Muslim polity. While much of the focus is on the Ḥanafī School of jurisprudence, comparisons will be made to other schools where possible, discerning areas of convergence and points of departure. Once this has been discovered, the actual intersection of Shari‘a and the American legal system will identify the fallacy of anti-Shari‘a propaganda. In doing so, I argue that a common sense approach is required that recognizes the accommodating principles in both legal traditions