Sex differences in the relationship between sensation seeking, trait emotional intelligence and delinquent behaviour

Levels of sensation seeking peak in adolescence and there is a well-documented association with delinquency and other risk taking behaviours. The present study investigated the potential moderating effect of trait Emotional Intelligence (EI) on this relationship. Trait EI encompasses high levels of empathy and emotion regulation and is associated with positive outcomes and wellbeing. 96 young adults (48 female; overall Mage = 19.76) completed measures of sensation seeking, trait EI and self-reported delinquent behaviours since age 12. Results indicated that sensation seeking and frequency of delinquent behaviours were positively associated, but this effect was moderated by trait EI for male participants - those with lower trait EI showed a greater increase in delinquency in line with a rise in sensation seeking. No moderation effect was observed for females, and females with higher levels of trait EI reported more delinquent behaviours. The results are discussed in terms of the protective role of trait EI in supporting self-regulation and whether, for some females, high levels of EI might predispose to antisocial relational behaviours

S-AMP for Non-linear Observation Models

Recently we extended Approximate message passing (AMP) algorithm to be able to handle general invariant matrix ensembles. In this contribution we extend our S-AMP approach to non-linear observation models. We obtain generalized AMP (GAMP) algorithm as the special case when the measurement matrix has zero-mean iid Gaussian entries. Our derivation is based upon 1) deriving expectation propagation (EP) like algorithms from the stationary-points equations of the Gibbs free energy under first- and second-moment constraints and 2) applying additive free convolution in free probability theory to get low-complexity updates for the second moment quantities.Comment: 6 page

S-AMP: Approximate Message Passing for General Matrix Ensembles

In this work we propose a novel iterative estimation algorithm for linear observation systems called S-AMP whose fixed points are the stationary points of the exact Gibbs free energy under a set of (first- and second-) moment consistency constraints in the large system limit. S-AMP extends the approximate message-passing (AMP) algorithm to general matrix ensembles. The generalization is based on the S-transform (in free probability) of the spectrum of the measurement matrix. Furthermore, we show that the optimality of S-AMP follows directly from its design rather than from solving a separate optimization problem as done for AMP.Comment: 5 pages, 1 figur

Capacity Scaling in MIMO Systems with General Unitarily Invariant Random Matrices

We investigate the capacity scaling of MIMO systems with the system dimensions. To that end, we quantify how the mutual information varies when the number of antennas (at either the receiver or transmitter side) is altered. For a system comprising $R$ receive and $T$ transmit antennas with $R>T$, we find the following: By removing as many receive antennas as needed to obtain a square system (provided the channel matrices before and after the removal have full rank) the maximum resulting loss of mutual information over all signal-to-noise ratios (SNRs) depends only on $R$, $T$ and the matrix of left-singular vectors of the initial channel matrix, but not on its singular values. In particular, if the latter matrix is Haar distributed the ergodic rate loss is given by $\sum_{t=1}^{T}\sum_{r=T+1}^{R}\frac{1}{r-t}$ nats. Under the same assumption, if $T,R\to \infty$ with the ratio $\phi\triangleq T/R$ fixed, the rate loss normalized by $R$ converges almost surely to $H(\phi)$ bits with $H(\cdot)$ denoting the binary entropy function. We also quantify and study how the mutual information as a function of the system dimensions deviates from the traditionally assumed linear growth in the minimum of the system dimensions at high SNR.Comment: Accepted for publication in the IEEE Transactions on Information Theor

Dynamical Functional Theory for Compressed Sensing

We introduce a theoretical approach for designing generalizations of the approximate message passing (AMP) algorithm for compressed sensing which are valid for large observation matrices that are drawn from an invariant random matrix ensemble. By design, the fixed points of the algorithm obey the Thouless-Anderson-Palmer (TAP) equations corresponding to the ensemble. Using a dynamical functional approach we are able to derive an effective stochastic process for the marginal statistics of a single component of the dynamics. This allows us to design memory terms in the algorithm in such a way that the resulting fields become Gaussian random variables allowing for an explicit analysis. The asymptotic statistics of these fields are consistent with the replica ansatz of the compressed sensing problem.Comment: 5 pages, accepted for ISIT 201

Role of electronic localization in the phosphorescence of iridium sensitizing dyes

In this work we present a systematic study of three representative iridium dyes, namely, Ir(ppy)3, FIrpic and PQIr, which are commonly used as sensitizers in organic optoelectronic devices. We show that electronic correlations play a crucial role in determining the excited-state energies in these systems, due to localization of electrons on Ir d orbitals. Electronic localization is captured by employing hybrid functionals within time-dependent density-functional theory (TDDFT) and with Hubbard-model corrections within the delta-SCF approach. The performance of both methods are studied comparatively and shown to be in good agreement with experiment. The Hubbard-corrected functionals provide further insight into the localization of electrons and on the charge-transfer character of excited-states. The gained insight allows us to comment on envisioned functionalization strategies to improve the performance of these systems. Complementary discussions on the delta-SCF method are also presented in order to fill some of the gaps in the literature.Comment: 15 pages, 14 figure

Regulations and software evolution: An example from the military domain

AbstractIn this article, the impact of regulatory changes on software development is assessed in the context of military standards. A previously conducted experiment incorporating three standards is further investigated for this purpose, outlining the characteristics of the evolution in standards and its effects. In addition to this experiment that was designed with projects conducted as graduate class work, a real project from the industry is utilized, to demonstrate the similar effects of the evolution as discovered in the earlier experiment. Finally, the results of the assessment are generalized and a forecast is presented for the next potential regulation change, the IEEE Std 12207-2008

Reverse currency substitution process and exchange rate volatility: the Turkish case

Teorik ve ampirik literatür, para ikamesinin döviz kurundaki oynaklığı ve bu oynaklığın da para talebini anlamlı düzeyde etkilediğini göstermektedir. Bu çalışmanın amacı, son dönemde, tersine dönmeye başlayan para ikamesinin döviz kuru oynaklığına ve bu oynaklığın da para talebi üzerine etkisinin olup olmadığının araştırılmasıdır. Çalışmada Güçlü Ekonomiye Geçiş Programı veri seti için başlangıç olarak alınmış ve 2001/04-2006/12 dönemini kapsayan aylık veri seti kullanılmıştır. Oynaklığın modellenmesinde E-GARCH ve para talebi denkleminde ise Pesaran vd. (2001) sınır testi yaklaşımı ile tahmin yapılmıştır. Teorik beklentiye uygun olarak, tahmin sonuçlarına göre inceleme döneminde, para ikamesinin tersine dönmesi döviz kuru oynaklığını azaltmıştır. Ayrıca, döviz kuru oynaklığındaki bu azalışın da ters para ikamesi sürecini hızlandırdığı para talebi modeli tahminiyle gösterilmiştir.Theoretical and empirical literature shows that there is a significant relation between currency substitution and exchange rate volatility, and this volatility affects money demand significantly. This study examines the relation between reverse currency substitution and the volatility in exchange rate as well as the effects of this volatility on the demand for money. We used monthly data covering the period of 2001/04-2006/12, which started with the implementation of Program for Transition to a Strong Economy. Following the literature, we employed E-GARCH method in exchange rate volatility modeling and Pesaran et al (2001) bounds test approach in the estimation of money demand function. In accordance with the theoretical expectations, we found that with the increase in reverse currency substitution the exchange rate volatility decreased. Moreover, the decline in the volatility of exchange rate increased the money demand, i.e. accelerated the reverse currency substitution process

A Fracking Fragile Issue: Courts Continue to Tiptoe Around Subsurface Trespass Claims

Theoretical and empirical literature shows that there is a significant relation between currency substitution and exchange rate volatility, and this volatility affects money demand significantly. This study examines the relation between reverse currency substitution and the volatility in exchange rate as well as the effects of this volatility on the demand for money. We used monthly data covering the period of 2001/04-2006/12, which started with the implementation of Program for Transition to a Strong Economy. Following the literature, we employed E-GARCH method in exchange rate volatility modeling and Pesaran et al (2001) bounds test approach in the estimation of money demand function. In accordance with the theoretical expectations, we found that with the increase in reverse currency substitution the exchange rate volatility decreased. Moreover, the decline in the volatility of exchange rate increased the money demand, i.e. accelerated the reverse currency substitution process.Teorik ve ampirik literatür, para ikamesinin döviz kurundaki oynaklığı ve bu oynaklığın da para talebini anlamlı düzeyde etkilediğini göstermektedir. Bu çalışmanın amacı, son dönemde, tersine dönmeye başlayan para ikamesinin döviz kuru oynaklığına ve bu oynaklığın da para talebi üzerine etkisinin olup olmadığının araştırılmasıdır. Çalışmada Güçlü Ekonomiye Geçiş Programı veri seti için başlangıç olarak alınmış ve 2001/04-2006/12 dönemini kapsayan aylık veri seti kullanılmıştır. Oynaklığın modellenmesinde E-GARCH ve para talebi denkleminde ise Pesaran vd. (2001) sınır testi yaklaşımı ile tahmin yapılmıştır. Teorik beklentiye uygun olarak, tahmin sonuçlarına göre inceleme döneminde, para ikamesinin tersine dönmesi döviz kuru oynaklığını azaltmıştır. Ayrıca, döviz kuru oynaklığındaki bu azalışın da ters para ikamesi sürecini hızlandırdığı para talebi modeli tahminiyle gösterilmiştir

Preserving Alveolar Bone Growth Following Cervical Root Fracture: A Case Report

Root fracture injuries affect 0.5%–7% of permanent teeth. Although cervical root fractures are less frequent in children, their serious consequences and poor prognosis may lead to tooth loss. In this case presentation, we discuss a treatment approach chosen to preserve alveolar bone growth following a cervical root fracture in an 8-year-old boy