Theoretical approach and practical analysis on employment measures- case study on Romania, 2010

The active measures are the main strategies that have the effect of reducing the unemployment, on short, medium and long term. An active measure has the effect of employment growth, by creating new jobs or by facilitating the access to vacancies. This paper aims to inform about the active measures taken in Romania in 2010, through the Employment Program’s previsions. Also, the paper offer a short analyses concerning the number of persons included in these measures, by Romania’s regions and by categories of ages

Accessing the Influence of Hess-Murray Law on Suspension Flow through Ramified Structures

The present study focuses on fluid flow and particle transport in symmetric T-shaped structures formed by tubes with circular and square cross-section. The performances of optimized structures (i.e., structures designed based on constructal allometric laws for minimum flow resistance) and not optimized structures were studied. Flow resistance and particle penetration efficiency were studied both for laminar and turbulent flow regimes, and for micrometer and submicrometer particles. Optimized structures have been proven to perform better for fluid flow but they have a similar performance for particle transport

The string swampland constraints require multi-field inflation

An important unsolved problem that affects practically all attempts to connect string theory to cosmology and phenomenology is how to distinguish effective field theories belonging to the string landscape from those that are not consistent with a quantum theory of gravity at high energies (the "string swampland"). It was recently proposed that potentials of the string landscape must satisfy at least two conditions, the "swampland criteria", that severely restrict the types of cosmological dynamics they can sustain. The first criterion states that the (multi-field) effective field theory description is only valid over a field displacement $\Delta \phi \leq \Delta \sim \mathcal O(1)$ (in units where the Planck mass is 1), measured as a distance in the target space geometry. A second, more recent, criterion asserts that, whenever the potential $V$ is positive, its slope must be bounded from below, and suggests $|\nabla V| / V \geq c \sim \mathcal O(1)$. A recent analysis concluded that these two conditions taken together practically rule out slow-roll models of inflation. In this note we show that the two conditions rule out inflationary backgrounds that follow geodesic trajectories in field space, but not those following curved, non-geodesic, trajectories (which are parametrized by a non-vanishing bending rate $\Omega$ of the multi-field trajectory). We derive a universal lower bound on $\Omega$ (relative to the Hubble parameter $H$) as a function of $\Delta, c$ and the number of efolds $N_e$, assumed to be at least of order 60. If later studies confirm $c$ and $\Delta$ to be strictly $\mathcal O(1)$, the bound implies strong turns with $\Omega / H \geq 3 N_e \sim 180$. Slow-roll inflation in the landscape is not ruled out, but it is strongly multi-field.Comment: v1: 15 pages; v2: 16 pages, references added, improved discussions, version accepted for publication in JCA

Cerberus is a feedback inhibitor of Nodal asymmetric signaling in the chick embryo

The TGF-beta-related molecule Nodal plays an essential and conserved role in left-right patterning of the vertebrate embryo. Previous reports have shown that the zebrafish and mouse Cerberus-related proteins Charon and Cerberus-like-2 (Cerl-2), respectively, act in the node region to prevent the Nodal signal from crossing to the right side, whereas chick Cerberus (cCer) has an unclear function in the left-side mesoderm. In this study, we investigate the transcriptional regulation and function of cCer in left-right development. By analyzing the enhancer activity of cCer 5' genomic sequences in electroporated chick embryos, we identified a cCer left-side enhancer that contains two FoxH1 and one SMAD binding site. We show that these Nodal-responsive elements are necessary and sufficient for the activation of transcription in the left-side mesoderm. In transgenic mouse embryos, cCer regulatory sequences behave as in chick embryos, suggesting that the cis-regulatory sequences of Cerberus-related genes have diverged during vertebrate evolution. Moreover, our findings from cCer overexpression and knockdown experiments indicate that cCer is a negative-feedback regulator of Nodal asymmetric signaling. We propose that cCer and mouse Cerl-2 have evolved distinct regulatory mechanisms but retained a conserved function in left-right development, which is to restrict Nodal activity to the left side of the embryo.info:eu-repo/semantics/publishedVersio

Effect of silica fume additions on the hydration behaviour of calcium aluminates

In the recent refractory castables technology, the calcium aluminate cement is being replaced in increasing proportion by very fine matrix components, such as silica fume and colloidal alumina. More efficient particle packing and the resulting lower water requirements have been the proposed explanation for the improved green density and strength, without sacrificing the castable workability. However, the aluminates are still responsible for the hydraulic setting of the castable. The hydration mechanisms of single calcium aluminates, and mixtures thereof, synthesised by combustion reaction of the appropriate nitrate-urea mixtures, were recently investigated. The present work describes the effect of silica time additions on the hydration behaviour of pure single calcium aluminates, also produced by combustion reaction. Results on the hydration mechanisms, the microstructure development and the resulting physical and/or mechanical properties of the hydrated samples, as a tiction of the water/cement ratio and the silica content, me presented and discussed.JNICT-Portugal - PALOP/24

A Statistical Model to Explain the Mendel--Fisher Controversy

In 1866 Gregor Mendel published a seminal paper containing the foundations of modern genetics. In 1936 Ronald Fisher published a statistical analysis of Mendel's data concluding that "the data of most, if not all, of the experiments have been falsified so as to agree closely with Mendel's expectations." The accusation gave rise to a controversy which has reached the present time. There are reasonable grounds to assume that a certain unconscious bias was systematically introduced in Mendel's experimentation. Based on this assumption, a probability model that fits Mendel's data and does not offend Fisher's analysis is given. This reconciliation model may well be the end of the Mendel--Fisher controversy.Comment: Published in at http://dx.doi.org/10.1214/10-STS342 the Statistical Science (http://www.imstat.org/sts/) by the Institute of Mathematical Statistics (http://www.imstat.org

Small Dollar Loans, Big Problems: How States Protect Consumers From Abuses and How the Federal Government Can Help

Across America, drivers pass twice as many payday loan storefronts as Starbucks coffee shops.2 In twenty-nine states, there are more payday lender stores than McDonald’s restaurants.3 Numerous research studies warn of the dangers associated with payday loans, including significantly higher rates of bankruptcies, evictions, utility shut-offs, and involuntary bank account closures.4 Many states have recognized the dangers posed by payday and other types of small-dollar loans with predatory features, prompting them to adopt laws to combat the abusive nature of these loans. These laws, however, offer consumers varying degrees of protection. Historically, states have used their police powers to protect consumers from predatory lending. This Article discusses the extent to which each state’s current laws protect consumers from lending abuses associated with four common small-dollar loans: payday loans, auto-title loans, six-month installment loans, and one-year installment loans.5 Specifically, this Article highlights the findings from the 2010 Small Dollar Loan Products Scorecard (Scorecard), which updated the original 2008 Scorecard. 6 Both the 2008 and 2010 Scorecard grade state laws based on the maximum annual percentage rate (APR) they allow for the four typical small-dollar loan products listed above. Since the 2008 Scorecard, there has been significant state legislative activity across the country related to small-dollar loans. Only a handful of states, however, have enacted new measures that adequately protect consumers. This Article provides policy recommendations to guide ongoing reform efforts. The Article highlights three key points. First, states should continue their longstanding good fight on behalf of American families against abusive, small dollar lending, but they need help. Congress and the Consumer Financial Protection Bureau (CFPB), which President Obama established when he signed the Dodd-Frank Wall Street Reform and Consumer Protection Act into law on July 21, 2010, should join the battle.7 Second, the states and Congress should focus their reform efforts on enacting an across-the-board usury cap of 36% APR on all small-dollar loans. Third, the states, CFPB, and Congress should impose several restrictions on high-cost (over 36% APR), small-dollar lending to help curb its abusive nature. In this Article, Part II describes the methodology used by the 2010 Scorecard. Part III reports the major changes that have occurred in the two years since the Scorecard’s original 2008 publication. Finally, Part IV proposes several policy recommendations, at the state and federal level, with the focus in the latter category on opportunities for action by the newly created CFPB