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See detailEl impacto de las migraciones cochabambinas en el marco de las transformaciones globales de las migraciones
Lafleur, Jean-Michel ULg; Ledo, Carmen; Yepez, Isabel

in Solé, Carlota; Parella, Sonia; Cavalcanti, Leonardo (Eds.) Migración boliviana y prácticas transnacionales (in press)

¿Donde se ubica Bolivia en los cambios migratorios de la era global caracterizados por sus vínculos transnacionales? Para responder esta pregunta, se investiga el caso de los emigrantes procedentes de la ... [more ▼]

¿Donde se ubica Bolivia en los cambios migratorios de la era global caracterizados por sus vínculos transnacionales? Para responder esta pregunta, se investiga el caso de los emigrantes procedentes de la ciudad de Cochabamba. En esta ciudad, en marzo del 2009 el CEPLAG-CIUF, realizamos una encuesta de gran amplitud con el propósito de entender las diversas facetas de las migraciones cochabambinas contemporáneas y determinar cómo estas se relacionan con las tendencias globales que acabamos de destacar . Los resultados de dicha encuesta son la base de este artículo. En vista de los requerimientos estadísticos y analíticos del estudio, para realizar la encuesta se visitaron alrededor de 40 mil predios y se encuestaron 15 400 mil hogares. Un tercio de los hogares encuestados declaró tener al menos un familiar en el extranjero. Estos hogares se denominan en este artículo “hogares transmigrantes”. [less ▲]

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See detailVirtual reality as a complementary therapy to sexual addiction treatment
Cismaru Inescu, Adina; Andrianne, Robert ULg; Triffaux, Jean-Marc ULg

in International Journal of Advanced Computer Science (in press), 3(7), 1-5

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See detailPhénoménologie brentanienne
Dewalque, Arnaud ULg

in Austriaca (in press)

Mon ambition est de mettre en lumière quelques traits distinctifs du programme d’analyse de l’esprit développé par Franz Brentano et les membres de son école. Plus spécialement, je suggérerai qu’il y a un ... [more ▼]

Mon ambition est de mettre en lumière quelques traits distinctifs du programme d’analyse de l’esprit développé par Franz Brentano et les membres de son école. Plus spécialement, je suggérerai qu’il y a un sens à parler d’une authentique phénoménologie brentanienne. J’entends par là un programme de recherche original, distinct notamment de la phénoménologie de Husserl – qui, à partir de 1903, n’est plus conçue comme une psychologie empirique ni, a fortiori, comme une psychologie expérimentale – et de la « phénoménologie » de Stumpf – qui, se rattachant à la tradition plus ancienne d’une Empfindungslehre, désigne exclusivement l’étude des phénomènes sensibles ou des matériaux sensoriels . Ma conviction est qu’un examen attentif des caractéristiques propres à la phénoménologie ou psychologie descriptive d’inspiration brentanienne est une bonne manière de donner un sens à l’expression de « phénoménologie autrichienne » qui a été proposée, dans la littérature, pour désigner le champ d’investigation ouvert par Brentano et les brentaniens. [less ▲]

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See detailSpectral Analysis and Abundances of the Post-HB Star HD 76431
Khalack, V.; Yameogo, B.; LeBlanc, F. et al

in Monthly Notices of the Royal Astronomical Society (in press)

HD76431 is a slow rotating post-HB star that shows an underabundance of helium by 0.5 dex relative to the solar value. These observational facts suggest that atomic diffusion could be active in its ... [more ▼]

HD76431 is a slow rotating post-HB star that shows an underabundance of helium by 0.5 dex relative to the solar value. These observational facts suggest that atomic diffusion could be active in its atmosphere. We have used the MMT and Bok spectra to estimate the atmospheric parameters of the target star using the model atmospheres and synthetic spectra calculated with TLUSTY and SYNSPEC. The derived values of the effective temperature, surface gravity, helium abundance are consistent with those obtained by Ramspeck et al. (2001b). It appears that NLTE effect are not important for HD76431. We have used Stokes I spectra from ESPaDOnS at CFHT to perform an abundance analysis and a search for observational evidence of vertical stratification of the abundance of certain elements. The results of our abundance analysis are in good agreement with previously published data with respect to average abundances. Our numerical simulations show that carbon and nitrogen reveal signatures of vertical abundance stratification in the atmosphere of HD76431. It appears that the carbon abundance increases toward the deeper atmospheric layers. Nitrogen also shows a similar behaviour, but in deeper atmospheric layers we obtain a significant dispersion for the estimates of its abundance. To our knowledge, this is the first demonstration of vertical abundance stratification of metals in a post-HB star and up to now it is the hottest star to show such stratification features. We also report the detection of two SiIII and one TiIII emission lines in the spectra of HD76431 that were not detected in previous studies. [less ▲]

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See detailA global analysis of Spitzer and new HARPS data confirms the loneliness and metal-richness of GJ 436 b
Lanotte, Audrey ULg; Gillon, Michaël ULg; Demory, B.-O. et al

in Astronomy and Astrophysics (in press)

Context. GJ 436b is one of the few transiting warm Neptunes for which a detailed characterisation of the atmosphere is possible, whereas its non-negligible orbital eccentricity calls for further ... [more ▼]

Context. GJ 436b is one of the few transiting warm Neptunes for which a detailed characterisation of the atmosphere is possible, whereas its non-negligible orbital eccentricity calls for further investigation. Independent analyses of several individual datasets obtained with Spitzer have led to contradicting results attributed to the different techniques used to treat the instrumental effects. Aims. We aim at investigating these previous controversial results and developing our knowledge of the system based on the full Spitzer photometry dataset combined with new Doppler measurements obtained with the HARPS spectrograph. We also want to search for additional planets. Methods. We optimise aperture photometry techniques and the photometric deconvolution algorithm DECPHOT to improve the data reduction of the Spitzer photometry spanning wavelengths from 3-24 {\mu}m. Adding the high precision HARPS radial velocity data, we undertake a Bayesian global analysis of the system considering both instrumental and stellar effects on the flux variation. Results. We present a refined radius estimate of RP=4.10 +/- 0.16 R_Earth, mass MP=25.4 +/- 2.1 M_Earth and eccentricity e= 0.162 +/- 0.004 for GJ 436b. Our measured transit depths remain constant in time and wavelength, in disagreement with the results of previous studies. In addition, we find that the post-occultation flare-like structure at 3.6 {\mu}m that led to divergent results on the occultation depth measurement is spurious. We obtain occultation depths at 3.6, 5.8, and 8.0 {\mu}m that are shallower than in previous works, in particular at 3.6 {\mu}m. However, these depths still appear consistent with a metal-rich atmosphere depleted in methane and enhanced in CO/CO2, although perhaps less than previously thought. We find no evidence for a potential planetary companion, stellar activity, nor for a stellar spin-orbit misalignment. [ABRIDGED] [less ▲]

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See detailThe strength of multi-row models
Louveaux, Quentin ULg; Poirrier, Laurent; Salvagnin, Domenico

in Mathematical Programming Computation (in press)

We develop a method for computing facet-defining valid inequalities for any mixed-integer set PJ. Our practical implementation does not return only facet- defining inequalities, but it is able to find a ... [more ▼]

We develop a method for computing facet-defining valid inequalities for any mixed-integer set PJ. Our practical implementation does not return only facet- defining inequalities, but it is able to find a separating cut whenever one exists. The separator is not comparable in speed with the specific cutting-plane generators used in branch-and-cut solvers, but it is general-purpose. We can thus use it to compute cuts derived from any reasonably small relaxation PJ of a general mixed- integer problem, even when there exists no specific implementation for computing cuts with PJ. Exploiting this, we evaluate, from a computational perspective, the usefulness of cuts derived from several types of multi-row relaxations. In particular, we present results with four different strengthenings of the two-row intersection cut model, and multi-row models with up to fifteen rows. We conclude that only fully-strengthened two-row cuts seem to offer a significant advantage over two-row intersection cuts. Our results also indicate that the improvement obtained by going from models with very few rows to models with up to fifteen rows may not be worth the increased computing cost. [less ▲]

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See detailMathématiques convoquées par le registre graphique au sein du cours de physique
Renkens, Céline; Henry, Valérie ULg

in Actes de la CIEAEM 66 (in press)

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See detailTypus melancholicus et mélancolie : Synthèse théorique à partir d’un cas clinique
Englebert, Jérôme ULg; Stanghellini, Giovanni

in Encéphale (L') (in press)

Objective: The objective of this paper is to propose, starting from the description of a clinical emblematic case, a theoretical synthesis of the work of phenomenological psychopathology dedicated to ... [more ▼]

Objective: The objective of this paper is to propose, starting from the description of a clinical emblematic case, a theoretical synthesis of the work of phenomenological psychopathology dedicated to melancholia and typus melancholicus (TM), a clinical concept that describes the premorbid personality vulnerable to major depression (“melancholia” for the psychopathological tradition). Method: This is phenomenological analysis of a case study of melancolia, of its premorbid personality and pathogenic triggering situation. We adopt two main phenomenological keys to understanding the develpment of melancholia : role-identity theory and desynchronization theory. The former understands melancholia as a disorder of identity triggered by the loss of the social role with which one has previously over-identifed. The latter sees melancholia as the effect of the desynchronisation from the social environment that further develops into an inhibition of the conative–affective dynamics of life. We present the case of Jonas (64 years old), whose mother (94 years old) recently died. Before his mother’s death, Jonas’ life was entirely orchestrated by the caring for his mother and synchronized in time with this (e.g., he used to go to her house every 4 hours, took all his meals with her, etc.). Jonas, in addition to being hyper-synchronized and hyper-syntonic, fulfills all diagnostic criteria for TM, including “orderliness”, “conscientiousness”, “hyper/heteronomia” and “intolerance of ambiguity”. TM’s attach a disproportioned importance to their social roles (or external representations of identity) at the expense of their own ego-identity. Results: The passage from pre-morbid personality to melancholia is triggered by the death of Jonas’ mother that entails a profound depersonalization. Desynchronization and role loss cause Jonas fall into this severe depersonalization, whose core feature is the feeling of the loss of feeling. Conclusions: This original contribution demonstrates a clinical case can contribute to the construction and refinement of theoretical and conceptual frameworks (like princeps Tellenbach's studies). Over-synchronized tempo and over-identification with social role are emblematically in this case the two sides of the same coin. A parallelism can be established between synchronization (with the mother) and respect for the role at the expense of own identity. The clinical case of Jonas highlights a conceptual bridge between the model of melancholia as loss of social role and the model of melancholia as desynchronization. [less ▲]

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See detailFirst ‘in situ’ determination of gas transport coefficients (DO2, DAr and DN2 ) from bulk gas 2 concentration measurements (O2, N2, Ar) in natural sea ice
Crabeck, O.; Delille, Bruno ULg; Rysgaard, S. et al

in Marine Chemistry (in press)

We report bulk gas concentrations of O2, N2 and Ar, as well as their transport coefficients, in natural landfast subarctic sea ice in southwest Greenland. The observed bulk ice gas composition was 27.5 ... [more ▼]

We report bulk gas concentrations of O2, N2 and Ar, as well as their transport coefficients, in natural landfast subarctic sea ice in southwest Greenland. The observed bulk ice gas composition was 27.5% O2, 71.4% N2 and 1.09% Ar. Most previous studies suggest that convective transport is the main driver of gas displacement in sea ice and have neglected diffusion processes. According to our data, brines were stratified within the ice, so that no convective transport could occur within the brine system. Therefore, diffusive transport was the main driver of gas migration. By analysing the temporal evolution of an internal gas peak within the ice, we deduced the bulk gas transport coefficients for oxygen (DO2), argon (DAr) and nitrogen (DN222 ). The values fit to the few existing estimates from experimental work, and are close to the diffusivity values in water (10-5 cm2 s-124 ). We suggest that gas bubbles escaping from the brine to the atmosphere - as the ice gets more permeable during melt could be responsible for the previously reported high transport coefficients. These results underline that when there is no convective transport within the sea ice, the transport of gas by diffusion through the brines, either in the liquid or gaseous phases, is a major factor in controlling the ocean–atmosphere exchange. [less ▲]

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See detailTheoretical power spectra of mixed modes in low-mass red giant stars
Grosjean, Mathieu ULg; Dupret, Marc-Antoine ULg; Belkacem, Kevin et al

in Astronomy and Astrophysics (in press)

CoRoT and Kepler observations of red giant stars revealed very rich spectra of non-radial solar-like oscillations. Of particular interest was the detection of mixed modes that exhibit significant ... [more ▼]

CoRoT and Kepler observations of red giant stars revealed very rich spectra of non-radial solar-like oscillations. Of particular interest was the detection of mixed modes that exhibit significant amplitude, both in the core and at the surface of the stars. It opens the possibility of probing the internal structure from their innermost layers up to their surface throughout their evolution on the red giant branch, as well as on the red clump. Our objective is primarily to provide physical insight into the mechanism responsible for mixed-mode amplitudes and lifetimes. Subsequently, we aim at understanding the evolution and structure of red-giant spectra along with their evolution. The study of energetic aspects of these oscillations is also important for predicting the mode parameters in the power spectrum. Non-adiabatic computations, including a time-dependent treatment of convection, are performed and provide the lifetimes of radial and non-radial mixed modes. We then combine these mode lifetimes and inertias with a stochastic excitation model that gives us their heights in the power spectra. For stars representative of CoRoT and Kepler observations, we show under which circumstances mixed modes have heights comparable to radial ones. We stress the importance of the radiative damping in determining the height of mixed modes. Finally, we derive an estimate for the height ratio between a g-type and a p-type mode. This can thus be used as a first estimate of the detectability of mixed modes. [less ▲]

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See detailA mysterious giant ichthyosaur from the lowermost Jurassic of Wales
Martin, Jeremy E; Vincent, Peggy; Suan, Guillaume et al

in Acta Palaeontologica Polonica (in press)

Ichthyosaurs rapidly diversified and colonised a wide range of ecological niches during the Early and Middle Triassic period, but experienced a major decline in diversity near the end of the Triassic ... [more ▼]

Ichthyosaurs rapidly diversified and colonised a wide range of ecological niches during the Early and Middle Triassic period, but experienced a major decline in diversity near the end of the Triassic. Timing and causes of this demise and the subsequent rapid radiation of the diverse, but less disparate, parvipelvian ichthyosaurs are still unknown, notably because of inadequate sampling in strata of latest Triassic age. Here, we describe an exceptionally large radius from Lower Jurassic deposits at Penarth near Cardiff, South Wales (UK) the morphology of which places it within the giant Triassic shastasaurids. A tentative total body size estimate, based on a regression analysis of various complete ichthyosaur skeletons, yields a value of 12-15 m. The specimen is substantially younger than any previously reported last known occurrences of shastasaurids and implies a Lazarus range in the lowermost Jurassic for this ichthyosaur morphotype. [less ▲]

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See detailBayesian versus frequentist methods for estimating disease true prevalence and 4 diagnostic test performance
Sanogo, M; Abatih, E; Saegerman, Claude ULg

in Veterinary Journal (in press)

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See detailUrban governance adaptation in an old industrial city: Liège (Belgium)
Breuer, Christophe ULg; Halleux, Jean-Marie ULg; Teller, Jacques ULg

in Francese, Dora (Ed.) Napoli Citta Metropolitana (in press)

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See detailChemical abundances of fast-rotating OB stars
Cazorla, Constantin ULg; Morel, Thierry ULg; Nazé, Yaël ULg et al

in IAU Symposium (in press)

Fast rotation in massive stars is predicted to induce mixing in their interior, but a population of fast-rotating stars with normal nitrogen abundances at their surface has recently been revealed (Hunter ... [more ▼]

Fast rotation in massive stars is predicted to induce mixing in their interior, but a population of fast-rotating stars with normal nitrogen abundances at their surface has recently been revealed (Hunter et al. 2009; Brott et al. 2011, but see Maeder et al. 2014). However, as the binary fraction of these stars is unknown, no definitive statements about the ability of single-star evolutionary models including rotation to reproduce these observations can be made. Our work combines for the first time a detailed surface abundance analysis with a radial-velocity monitoring for a sample of bright, fast-rotating Galactic OB stars to put strong constraints on stellar evolutionary and interior models. [less ▲]

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See detailOn the pragmatics of subjectification. The emergence and grammaticalization of a verb-less Allative Future in Ancient Egyptian
Grossman, Eitan; Polis, Stéphane ULg

in Acta Linguistica Hafniensia : International Journal of Linguistics (in press)

In this paper, we argue that an expanded conception of the distinction between speaker-oriented and subject-oriented inferences is crucial for understanding the motivations and mechanisms of semantic ... [more ▼]

In this paper, we argue that an expanded conception of the distinction between speaker-oriented and subject-oriented inferences is crucial for understanding the motivations and mechanisms of semantic change in grammaticalization and subjectivation, on the one hand, and for clarifying the links between semantic change and reductive formal changes. Speaker-oriented inferences have significant consequences, leading to the relaxation of selectional restrictions on a construction. In turn, the relaxation of selectional restrictions can create conditions in which the type- and token-frequency of a construction can rise considerably. Furthermore, changes in the selectional restrictions on a construction can themselves catalyze semantic change by coercing listeners into new form-function pairings. This framework is applied to the grammaticalization of allative futures, a typological comparative concept developed in order to compare structurally diverse future tenses. A small typological study allows us to reconsider some problematic pathways of grammaticalization and to suggest some alternative analyses. Following the typological discussion, a detailed diachronic case study of a verbless allative future in Ancient Egyptian is presented. [less ▲]

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See detailLes défis colossaux auxquels la santé publique va devoir faire face !
COUCKE, Philippe ULg

in Onco : Revue Multidisciplinaire d'Oncologie (in press)

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See detailL’acte incendiaire, son sujet et sa signification : propositions à partir du Saint Genet de Jean-Paul Sartre
Englebert, Jérôme ULg

in Annales Médico-Psychologiques (in press)

Objectives In this paper we studied fire setters with the hermeneutics’ method from the philosophy of Jean-Paul Sartre. In the psychobiography of Jean Genet, the philosopher raises issues of the ... [more ▼]

Objectives In this paper we studied fire setters with the hermeneutics’ method from the philosophy of Jean-Paul Sartre. In the psychobiography of Jean Genet, the philosopher raises issues of the infractional acting and its social meaning. Methods After recalling the basic notions of international literature about fire setters (including confusion with pyromania, diagnostic problems proposed by the DSM IV and the concept of "communicative arson"), we propose phenomenological and existential clues to discuss the act and its meaning. It is the unlawful act that is analysed and more specifically the arson. We propose different analysis than the psychic causality which is inspired by psychoanalysis. The criminogenesis gives way to a questioning of identity, about the place of fire in the subject’s history and within its relationships to others. As proposed by Sartre, the paradigm of this research is to consider the meaning "as the return of the future in the present". The second field of this study is an analysis of three clinical cases. These cases are the result of a forensic practice. The method is focused on the analysis of a narrative and autobiographical production. By this way we studied the temporal process of these three arsonists. Results A comparative reading of the psychobiography of Jean Genet written by Sartre and of the situation of arsonists gives accurate information. The "criminogenesis" gives way to a questioning of identity. In this way we discuss the meaning of fire in the subject's history and within its relationship to others. We highlight the inscription of the act in the social and constitutive process of the individual. From the clinical material, the author demonstrates a link between arson and construction of identity. Identity is considered as a dialectic between “ipse” and “idem”, as suggested by Ricœur. We can therefore consider the real sense that the arson has from the perspective of the actor but also from the viewpoint of the society and these conceptions may be similar or different. In clinical practice, we recommend to pay special attention to how the fire is part of the biography of the patient. Conclusions The fascination for fire is a source of meaning which can be radically different depending on whether we consider the external interpreter (the world or the clinician) or the author of the action. The basic principles of hermeneutics, as described by Gadamer and Ricœur, are to demonstrate that the understanding and the interpretation are not only the methods used in the human sciences but are also part of the fundamental processes inherent in human nature. Hermeneutics in general is the opposite of a doctrine of truth. It rather seeks to show arbitrarily how the interpretation and the search for meaning are paradigmatic of the human experience. [less ▲]

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