A convenient implementation of the overlap between arbitrary Hartree-Fock-Bogoliubov vacua for projection

Overlap between Hartree-Fock-Bogoliubov(HFB) vacua is very important in the beyond mean-field calculations. However, in the HFB transformation, the $U,V$ matrices are sometimes singular due to the exact emptiness ($v_i=0$) or full occupation ($u_i=0$) of some single-particle orbits. This singularity may cause some problem in evaluating the overlap between HFB vacua through Pfaffian. We found that this problem can be well avoided by setting those zero occupation numbers to some tiny values (e.g., $u_i,v_i=10^{-8}$). This treatment does not change the HFB vacuum state because $u_i^2,v_i^2=10^{-16}$ are numerically zero relative to 1. Therefore, for arbitrary HFB transformation, we say that the $U,V$ matrices can always be nonsingular. From this standpoint, we present a new convenient Pfaffian formula for the overlap between arbitrary HFB vacua, which is especially suitable for symmetry restoration. Testing calculations have been performed for this new formula. It turns out that our method is reliable and accurate in evaluating the overlap between arbitrary HFB vacua.Comment: 5 pages, 2 figures. Published versio

Why are tax incentives increasingly used to promote private R&D?

Although not new, tax incentives have known major changes over recent years and it is becoming an increasingly important instrument in the policy mix to stimulate private R&D in many countries around the world. The OECD reports three major trends: The implementation of R&D tax incentives schemes by a growing number of OECD and non- OECD countries; A steady substitution of direct funding schemes for tax incentives schemes to stimulate business R&D; The many changes to tax incentives schemes most countries have done to increase the levels of generosity and attractiveness. This paper attempts to explain the motives behind these trends in R&D policy to stimulate private R&D and takes a multi-level approach as the issue involves political, strategic and economic considerations. The reasons behind the growing preference for tax incentives go much beyond any possible advantage these policies might have over direct measures, and are also the consequence of a political change in the EU R&D policy after the Lisbon Strategy and the subsequent actions to stimulate R&D expenditures, a change in the economic rationale of public support of private R&D in face of the insufficiency of market failures to justify that public intervention in a new context characterised by a public determination to increase the amount of business R&D expenditures, and the growing competition between countries for international R&D investment.Tax incentives; Business R&D; R&D policy.

Imported Cutaneous Melioidosis in Traveler, Belgium

SCOPUS: le.jinfo:eu-repo/semantics/publishe

Fantasías freudianas: aspectos centrales y posible aproximación con el concepto de esquemas de Aaron Beck

This article discusses points about the concept of fantasy of Sigmund Freud, and suggests a dialogue between them and the concept of schemes proposed by Aaron Beck's cognitive therapy theory. This suggestion does not indicate any form of eclecticism, theoretical or practical, and discusses these concepts considering the differences in their assumptions. According to Freudian theory, the fantasy represents a form of subjective reading, organized from the wishes and defense mechanisms, of facts' reality. This is what Freud called psychic reality, which has its basis in childhood and the phylogenetic fantasies. Beck's theory does not make references to the notion of fantasy, however, and considers the role of subjective impressions and interpretations of events, especially those experienced in childhood. Thus, he develops the thesis that the schemes organize cognitive, affective and behavioral processes. The dialogue between these theories has been supported by studies in cognitive science.Este artículo discute los puntos sobre el concepto de fantasía, de Sigmund Freud, y se propone a un diálogo entre ellos y el concepto de esquemas propuesto por la teoría de la terapia cognitiva de Aaron Beck. Esa sugerencia no significa eclecticismo teórico o práctico y aborda estos conceptos teniendo en cuenta las diferencias en sus suposiciones. Según la teoría freudiana, las fantasías representan una forma de lectura subjetiva, organizada a partir de los deseos y de los mecanismos de defensa, de la realidad de los hechos. Se trata de lo que Freud llamó de la realidad psíquica, la cual tiene sus bases en la infancia y en las fantasías filogenéticas. La teoría de Beck no hace referencia a la noción de fantasía, sin embargo, considera el papel de las impresiones y de las interpretaciones subjetivas de los acontecimientos, especialmente aquellos vividos en la infancia. Así se desarrolla la tesis de que los esquemas organizan procesos cognitivos, afectivos y comportamentales. El diálogo entre esas teorías ha sido apoyado por estudios de las ciencias cognitivas.Este artigo aborda pontos sobre o conceito de fantasia, de Sigmund Freud, e propõe um diálogo entre eles e o conceito de esquemas, proposto pela teoria da terapia cognitiva de Aaron Beck. Essa sugestão não indica ecletismo teórico ou prático, abordando esses conceitos considerando as diferenças dos seus pressupostos. De acordo com a teoria freudiana, as fantasias representam uma forma de leitura subjetiva, organizada a partir dos desejos e dos mecanismos de defesa, da realidade dos fatos. Trata-se do que Freud denomina realidade psíquica, a qual tem suas bases na infância e nas fantasias filogenéticas. A teoria de Beck não faz referências à noção de fantasia, contudo considera o papel das impressões e das interpretações subjetivas dos eventos, especialmente aqueles vividos na infância. Assim desenvolve a tese de que os esquemas organizam processos cognitivos, afetivos e comportamentais. O diálogo entre tais teorias tem sido corroborado por estudos das ciências cognitivas.Universidade Federal de São Paulo (UNIFESP)UNIFESPSciEL

Lichen planus actinicus treated successfully with topical tacrolimus 0.1%: A report of six cases

Dear Editor,Lichen planus actinicus (LPA) is a photodistributed variant of lichenplanus (LP) that frequently occurs individuals with dark complexionson sun-exposed areas.1,2All of the cases admitted to our clinics forasymptomatic discoloration and rash on different parts of the faces.Five of six cases were male and one of them was female..

Why do pulse pressure variations fail to predict the response to fluids in acute respiratory distress syndrome patients ventilated with low tidal volume?

Respiratory-associated variations in stroke volume and pulse pressure are frequently used to predict the response to fluid administration. However, it has been demonstrated that low tidal volume ventilation may limit their use in patients with acute respiratory distress syndrome (ARDS). In this issue, a trial investigates the value of pulse pressure variation to predict fluid responsiveness in a large series of patients with ARDS ventilated according to current guidelines

We Missed Our Youth : The Identity Formation of Child Migrants, Refugees, and Jewish Children in France From 1940 to 1942

From 1940 – 1942, hundreds of Jewish children from Germany, Austria, Russia, and France were hidden from Nazi and Vichy French authorities in children’s homes in France. These homes were administered by the Oeuvre de Secours aux Enfants, a Jewish aid organization that assisted children in need during World War II. This study employs a quantitative content analysis of the testimonies of twenty Holocaust survivors who were hidden children in France between 1940 and 1942 to investigate to what extent the experience of outsider status and trauma affected these children’s personal and religious identity formation. The analysis finds that the experience of forced familial separation and trauma had adverse effects on survivors’ formation of a personal identity and affiliation links and had other unexpected consequences in their lives. This thesis integrates scholarship about Vichy France and its persecution of Jews with modern literature about identity, racialization, and immigration in France. Finally, this thesis uses the historical analysis and modern scholarship to provide insight into the experience of contemporary refugee children in France and the world