Notes on Hlog⁡H^{\log} : structural properties, dyadic variants, and bilinear H1H^1-BMOBMO mappings

This article is devoted to a study of the Hardy space $H^{\log} (\mathbb{R}^d)$ introduced by Bonami, Grellier, and Ky. We present an alternative approach to their result relating the product of a function in the real Hardy space $H^1$ and a function in $BMO$ to distributions that belong to $H^{\log}$ based on dyadic paraproducts. We also point out analogues of classical results of Hardy-Littlewood, Zygmund, and Stein for $H^{\log}$ and related Musielak-Orlicz spaces.Comment: This article supersedes and extends a previous article arXiv:1905.1347

Meaning in life in Eating Disorders patients with Non-suicidal self Injuries.

Low meaning in life it is associated to psychopathology in a large amount of research in clinical sample. However, the studies on meaning in life in people with eating disorders is scarce. Moreover, important NSSI rates have been reported in patients with eating disorders. The aims of the study are: (1) to analyze whether the participants diagnosed with eating disorders have lower meaning in life than the general population; (2) to analyze possible differences in meaning in life among participants based on the eating disorder diagnosis (anorexia nervosa, bulimia nervosa and EDNOS) or subtype (restrictive vs. purgative); (3) to study which psychopathological variables (hopelessness, meaning in life) differentiate the participants diagnosed with eating disorders with NSSI from participants without NSSI. We obtained data from 76 participants diagnosed with eating disorders, 19.7% with NSSI. Results showed that participants diagnosed with eating disorders had lower meaning life than the non-clinical participants. We did not find any statistically significant differences in meaning in life between participants diagnosed with anorexia nervosa, bulimia nervosa and EDNOS. Finally, only meaning in life differentiated between participants with NSSI and participants without NSSI. This study examines the association between meaning in life and eating disorders, and it indicates that meaning in life is a relevant variable in the psychopathology of eating disorder

El papel de la desesperanza y el sentido de la vida en una muestra clínica con autolesiones no suicidas e intentos suicidas

Background: Non-suicidal self-injury (NSSI) and suicide attempts (SA) lie on a continuum of self-harm, and literature has shown that patients with suicidal intent constitute a more severe group. Method: This study aimed to explore differences in the facets of hopelessness (Beck Hopelessness Scale) and meaning in life (Purpose in Life Test) in a clinical sample of 150 patients with a diagnosis of a mental disorder with: a) no NSSI/SA, b) only NSSI, or c) SA/NSSI and SA. Results: The results showed statistically signifi cant differences between the groups in the affective dimension, but they showed similar levels of meaning in life in both groups. Conclusion: These fi ndings highlight that affective hopelessness can lead to suicide attempts, and that meaning in life underlies the continuum of self-harm. Implications for psychotherapeutic interventions are discussed.Antecedentes: las autolesiones no suicidas y los intentos de suicidio se sitúan en el continuo de las conductas autolesivas, en el que los pacientes con una historia de intentos de suicidio constituyen el grupo de mayor gravedad. Método: en este trabajo nos planteamos explorar diferencias en desesperanza y sus distintas facetas (Escala de Desesperanza de Beck), así como en sentido de la vida (Purpose in Life Test) en una muestra clínica compuesta por 150 pacientes con un diagnóstico de trastorno mental: a) sin autolesiones no suicidas ni intentos de suicidio, b) únicamente con autolesiones no suicidas o c) con intentos de suicidio/ambos tipos de conductas. Resultados: los resultados mostraron diferencias estadísticamente signifi cativas entre los grupos en desesperanza afectiva y niveles similares en sentido de la vida. Conclusiones: estos resultados subrayan que la desesperanza afectiva se relaciona con los intentos suicidas, y que los niveles bajos de sentido de la vida están a la base de las conductas autolesivas. Se discuten las implicaciones terapéuticas derivadas de estos resultados.Psicologí

Rol predictivo del sentido de la vida sobre la depresión, la desesperanza y el riesgo de suicidio en pacientes con trastorno límite de la personalidad

The relation between the meaning in life and depression, hopelessness, and suicide risk in a sample of Spanish Borderline Personality Disorder patients is analyzed. The hypothesis suggested that meaning in life is a significant negative predictor of these variables. Participants were 80 Borderline Personality Disorder patients (75 women, 5 men) ranged 16-60 years old, M = 32.21, SD = 8.85, from a public mental health service. Spanish adaptations of the Purpose- In-Life Test, the Beck Depression Inventory-II, the Beck Hopelessness Scale, and the Plutchick’s Suicide Risk Scale were used. Analysis included descriptive, correlations, and simple linear regression. Results showed that meaning in life was negatively related to depression, hopelessness, and suicide risk. It is necessary to introduce the evaluation of the meaning in life in the assessment of patients with Borderline Personality Disorder and to include in the psychotherapeutic intervention elements to enhance their perception and experience of meaning in life.Se analizan las relaciones entre sentido de la vida, depresión, desesperanza y riesgo de suicidio en un grupo de pacientes con Trastorno Límite de Personalidad. La hipótesis al respecto afirma que el sentido de la vida predice negativamente de estas variables. En el estudio participaron 80 pacientes españoles con Trastorno Límite de Personalidad (75 mujeres, 5 hombres) de un servicio público de salud mental, con edades entre los 16 y los 60 años. Se utilizaron versiones españolas del Purpose-In-Life Test, del Inventario de Depresión-II y la Escala de Desesperanza de Beck y de la Escala de Riesgo Suicida de Plutchick. Los análisis incluyeron estadísticos descriptivos, correlaciones y regresión lineal simple. Los resultados mostraron que el sentido de la vida se relacionó negativamente con la depresión, la desesperanza y el riesgo de suicidio. Se concluye que hay necesidad de introducir la valoración del sentido de la vida en la evaluación de pacientes con Trastorno Límite de Personalidad y de incluir en la intervención psicoterapéutica elementos para mejorar su percepción y vivencia de sentido de la vida.Psicologí

Static scheduling of the LU factorization with look-ahead on asymmetric multicore processors

[EN] We analyze the benefits of look-ahead in the parallel execution of the LU factorization with partial pivoting (LUpp) in two distinct "asymmetric" multicore scenarios. The first one corresponds to an actual hardware-asymmetric architecture such as the Samsung Exynos 5422 system-on-chip (SoC), equipped with an ARM big.LITTLE processor consisting of a quad core Cortex-A15 cluster plus a quad-core Cortex-A7 cluster. For this scenario, we propose a careful mapping of the different types of tasks appearing in LUpp to the computational resources, in order to produce an efficient architecture-aware exploitation of the computational resources integrated in this SoC. The second asymmetric configuration appears in a hardware-symmetric multicore architecture where the cores can individually operate at a different frequency levels. In this scenario, we show how to employ the frequency slack to accelerate the tasks in the critical path of LUpp in order to produce a faster global execution as well as a lower energy consumption. (C) 2018 Elsevier B.V. All rights reserved.The researchers from Universidad Jaume I were supported by projects TIN2014-53495-R and TIN2017-82972-R of MINECO and FEDER, and the FPU program of MECD. The researcher from Universitat Politecnica de Catalunya was supported by projects TIN2015-65316-P of MINECO and FEDER and 2017-SGR-1414 from the Generalitat de Catalunya.Catalán, S.; Herrero, JR.; Quintana Ortí, ES.; Rodríguez-Sánchez, R. (2018). Static scheduling of the LU factorization with look-ahead on asymmetric multicore processors. Parallel Computing. 76:18-27. https://doi.org/10.1016/j.parco.2018.04.006S18277

Programming parallel dense matrix factorizations with look-ahead and OpenMP

[EN] We investigate a parallelization strategy for dense matrix factorization (DMF) algorithms, using OpenMP, that departs from the legacy (or conventional) solution, which simply extracts concurrency from a multi-threaded version of basic linear algebra subroutines (BLAS). The proposed approach is also different from the more sophisticated runtime-based implementations, which decompose the operation into tasks and identify dependencies via directives and runtime support. Instead, our strategy attains high performance by explicitly embedding a static look-ahead technique into the DMF code, in order to overcome the performance bottleneck of the panel factorization, and realizing the trailing update via a cache-aware multi-threaded implementation of the BLAS. Although the parallel algorithms are specified with a high level of abstraction, the actual implementation can be easily derived from them, paving the road to deriving a high performance implementation of a considerable fraction of linear algebra package (LAPACK) functionality on any multicore platform with an OpenMP-like runtime.The researchers from Universidad Jaume I were supported by the CICYT Projects TIN2014-53495-R and TIN2017-82972-R of the MINECO and FEDER, and the H2020 EU FETHPC Project 671602 "INTERTWinE". The researchers from Universidad Complutense de Madrid were supported by the CICYT Project TIN2015-65277-R of the MINECO and FEDER. Sandra Catalan was supported during part of this time by the FPU program of the Ministerio de Educacion, Cultura y Deporte. Adrian Castello was supported by the ValI+D 2015 FPI program of the Generalitat Valenciana.Catalán, S.; Castelló, A.; Igual, FD.; Rodríguez-Sánchez, R.; Quintana Ortí, ES. (2020). Programming parallel dense matrix factorizations with look-ahead and OpenMP. Cluster Computing. 23(1):359-375. https://doi.org/10.1007/s10586-019-02927-zS359375231Anderson, E., Bai, Z., Susan Blackford, L., Demmel, J., Dongarra, J.J., Croz, J.D., Hammarling, S., Greenbaum, A., McKenney, A., Sorensen, D.C.: LAPACK Users’ guide. SIAM, 3rd edition (1999)Badia, R.M., Herrero, J.R., Labarta, J., Pérez, J.M., Quintana-Ortí, E.S., Quintana-Ortí, G.: Parallelizing dense and banded linear algebra libraries using SMPSs. Conc. Comp. 21, 2438–2456 (2009)Bientinesi, P., Gunnels, J.A., Myers, M.E., Quintana-Ortí, E.S., van de Geijn, R.A.: The science of deriving dense linear algebra algorithms. ACM Trans. Math. Softw. 31(1), 1–26 (2005)Bischof, C.H., Lang, B., Sun, X.: Algorithm 807: the SBR toolbox–software for successive band reduction. ACM Trans. Math. Softw. 26(4), 602–616 (2000)Buttari, A., Langou, J., Kurzak, J., Dongarra, J.: A class of parallel tiled linear algebra algorithms for multicore architectures. Parallel Comput. 35(1), 38–53 (2009)Castelló, A., Mayo, R., Sala, K., Beltran, V., Balaji, P., Peña, A.J.: On the adequacy of lightweight thread approaches for high-level parallel programming models. Future Gener. Comput. Syst. 84, 22–31 (2018)Castelló, A., Peña, A.J., Seo, S., Mayo, R., Balaji, P., Quintana-Ortí, E.S.: A review of lightweight thread approaches for high performance computing. In: Proceedings of the IEEE International Conference on Cluster Computing, Taipei, Taiwan (September 2016)Castelló, A., Seo, S., Mayo, R., Balaji, P., Quintana-Ortí, E.S., Peña, A.J.: GLT: a unified API for lightweight thread libraries. In: Proceedings of the IEEE International European Conference on Parallel and Distributed Computing, Santiago de Compostela, Spain (August 2017)Castelló, A., Seo, S., Mayo, R., Balaji, P., Quintana-Ortí, E.S., Peña, A.J.: GLTO: on the adequacy of lightweight thread approaches for OpenMP implementations. In: Proceedings of the International Conference on Parallel Processing, Bristol, UK (August 2017)Catalán, S, Herrero, JR., Quintana-Ortí, E.S., Rodríguez-Sánchez, R., van de Geijn, R.A.: A case for malleable thread-level linear algebra libraries: The LU factorization with partial pivoting. CoRR (2016) arXiv:1611.06365Catalán, S., Igual, F.D., Mayo, R., Rguez-Sánchez, R.: Architecture-aware configuration and scheduling of matrix multiplication on asymmetric multicore processors. Clust. Comput. 19(3), 1037–1051 (2016)Chameleon project. http://project.inria.fr/chameleon/Demmel, J.: Applied Numerical Linear Algebra. 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Engineering and Scientific Subroutine Library. http://www-03.ibm.com/systems/power/software/essl/ (2015)Intel. Math Kernel Library. https://software.intel.com/en-us/intel-mkl (2015)OmpSs project home page. http://pm.bsc.es/ompsshttp://www.openblas.net (2015)OpenMP API specification for parallel programming. http://www.openmp.org (2017)PLASMA project home page. http://icl.cs.utk.edu/plasmaQuintana-Ortí, E.S., van de Geijn, R.A.: Updating an LU factorization with pivoting. ACM Trans. Math. Softw. 35(2), 11:1–11:16 (2008)Quintana-Ortí, G., Quintana-Ortí, E.S., van de Geijn, R.A., Van Zee, F.G., Chan, E.: Programming matrix algorithms-by-blocks for thread-level parallelism. ACM Trans. Math. 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The Maternal Education Programme in the Public Health System in Galicia

[Resumen] Objetivos. Los objetivos del presente estudio han sido conocer la presión asistencial de los cursos de Educación Maternal en los centros de salud gallegos, así como su temporalización y las actividades teóricas y prácticas realizadas. Material y métodos. Estudio observacional de prevalencia mediante cuestionario autoadministrado y autofranqueado de todos los Centros de Salud de la Comunidad Autónoma de Galicia que disponen de matrona. El análisis estadístico ha consistido en un estudio descriptivo de todas las variables incluidas en el estudio. En el 81,5 % de las encuestas recibidas se refiere la existencia del Programa de Educación Maternal. En el 93,4 % de los casos las mujeres que inician el programa lo finalizan. Los contenidos teóricos del programa más frecuentemente desarrollados han sido cuidados en el recién nacido, lactancia y cuidados en el puerperio que están presentes en el 100 % de los casos; y el menos frecuentemente abordado ha sido medicación y embarazo. Los contenidos prácticos del programa más frecuentemente desarrollados han sido las técnicas de respiración (100 %), seguida de la preparación física preparto (98,1 %); y el menos desarrollado ha sido la recuperación física posparto. El mes de gestación en el que se inició el programa tuvo como mediana 6,5. La duración del programa tuvo como mediana 10 semanas. En el 100 % de las encuestas recibidas se indica que el responsable del programa es la matrona. Según las respuestas recibidas, existe una buena implementación del Programa de Educación Maternal. En cuanto a los contenidos teóricos y prácticos abordados en el período preparto, se observa una gran homogeneidad entre las distintas Unidades, abarcando gran variedad de aspectos. Parece que se enfatiza el programa preparto respecto al posparto, que cuenta con un menor número de horas semanales y de semanas de duración.[Abstract] Aims of the study. The goals of this study have been to know the number of patients who participate in the Maternal Education Program in the Health Centers in Galicia. Timetable, theoretical and practical activities of the program have been analised. Subject and methods. transversal descriptive study. We have sent by post a survey to all the health centers of Galicia which have midwifes. The statistic analyses has been about a descriptive study of all the variables included in the questionnaire. The maternal Education Program exists in the 81.5 % of the replies we have received. In the 93.4 % of the cases, the women both started and finished the program. The theoretical contents more frequently developed have been the medical care for newborn, breast-feeding and medical care in the postpartum period, which are present in the 100 % of the cases. The less frequently developed has been the medication and pregnancy. The practical contents of the program more frequently developed have been the breathe technics (100 %) followed by physical training during pregnancy (98.1 %). The less developed topic has been the physical training after delivery. The month of pregnancy when the programme begun had as median 6.5. The lenght of the program had as median 10 weeks. The 100 % of the replies showed that the person in charge of the programme was the midwife. According to the replies we have received, there is a high development of the Maternal Education Program. Related to the theoretical and practical contents taught during the pregnancy, there is so much homogeneity about several aspects among the different centers. It seems to be more emphasis in the prepartum compared to the postpartum program, which has less number of hours per week, and also less weeks of length

Two-sided orthogonal reductions to condensed forms on asymmetric multicore processors

[EN] We investigate how to leverage the heterogeneous resources of an Asymmetric Multicore Processor (AMP) in order to deliver high performance in the reduction to condensed forms for the solution of dense eigenvalue and singular-value problems. The routines that realize this type of two-sided orthogonal reductions (TSOR) in LAPACK are especially challenging, since a significant fraction of their floating-point operations are cast in terms of memory-bound kernels while the remaining part corresponds to efficient compute-bound kernels. To deal with this scenario: (1) we leverage implementations of memory-bound and compute-bound kernels specifically tuned for AMPs; (2) we select the algorithmic block size for the TSOR routines via a practical model; and (3) we adjust the type and number of cores to use at each step of the reduction. Our experiments validate the model and assess the performance of our asymmetry-aware TSOR routines, using an ARMv7 big.LITTLE AMP, for three key operations: the reduction to tridiagonal form for symmetric eigenvalue problems, the reduction to Hessenberg form for non-symmetric eigenvalue problems, and the reduction to bidiagonal form for singular-value problems.The researchers from Universidad Jaume I were supported by project TIN2014-53495-R of MINECO and FEDER, and the FPU program of MECD. The researcher from Universitat Politecnica de Valencia was supported by the Generalitat Valenciana PROMETEOII/2014/003. The researcher from Universitat Politecnica de Catalunya was supported by projects TIN2015-65316-P from the Spanish Ministry of Education and 2014 SGR 1051 from the Generalitat de Catalunya, Dep. d'Innovacio, Universitats i Empresa.Alonso-Jordá, P.; Catalán, S.; Herrero, JR.; Quintana-Ortí, ES.; Rodríguez-Sánchez, R. (2018). Two-sided orthogonal reductions to condensed forms on asymmetric multicore processors. Parallel Computing. 78:85-100. https://doi.org/10.1016/j.parco.2018.03.005S851007

A case for malleable thread-level linear algebra libraries: The LU factorization with partial pivoting

(c) 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.[EN] We propose two novel techniques for overcoming load-imbalance encountered when implementing so-called look-ahead mechanisms in relevant dense matrix factorizations for the solution of linear systems. Both techniques target the scenario where two thread teams are created/activated during the factorization, with each team in charge of performing an independent task/branch of execution. The first technique promotes worker sharing (WS) between the two tasks, allowing the threads of the task that completes first to be reallocated for use by the costlier task. The second technique allows a fast task to alert the slower task of completion, enforcing the early termination (ET) of the second task, and a smooth transition of the factorization procedure into the next iteration. The two mechanisms are instantiated via a new malleable thread-level implementation of the basic linear algebra subprograms, and their benefits are illustrated via an implementation of the LU factorization with partial pivoting enhanced with look-ahead. Concretely, our experimental results on an Intel-Xeon system with 12 cores show the benefits of combining WS+ET, reporting competitive performance in comparison with a task-parallel runtime-based solution.This work was supported in part by the Spanish Ministerio de Economia y Competitividad under Project TIN2014-53495-R, Project TIN2015-65316-P, and Project TIN2017-82972-R, in part by the H2020 EU FETHPC "INTERTWinE" under Project 671602, in part by the Generalitat de Catalunya under Project 2017-SGR-1414, and in part by the NSF under Grant ACI-1550493.Catalán, S.; Herrero, JR.; Quintana Ortí, ES.; Rodríguez-Sánchez, R.; Van De Geijn, R. (2019). A case for malleable thread-level linear algebra libraries: The LU factorization with partial pivoting. IEEE Access. 7:17617-17633. https://doi.org/10.1109/ACCESS.2019.2895541S1761717633

Características y unidimensionalidad de las autolesiones no suicidas en una muestra comunitaria de adolescentes españoles.

Few studies have explored the prevalence and unidimensional structure of Non-Suicidal Self-Injury (NSSI) in Spanish adolescents. Method: In this study, we estimated the prevalence, types, and functions of NSSI in 1,733 Spanish adolescents, and we tested the unidimensional factorial structure of non-suicidal self-injury. Results: 24.6% of the adolescents referred to having self-injured at least once during their lifetime, and 12.7% had self-injured using more severe methods of NSSI. The most frequent types of NSSI were interfering with wounds (14.6%), scratching (12.5%), and hitting (11.7%). We found no differences between genders in NSSI frequency. The majority of the participants who self-injured referred to intrapersonal functions. The confi rmatory factor analyses of the ISAS-I structure showed a single factor with 10 items, thus supporting the unidimensionality of the construct of NSSI. Conclusions: NSSIs refl ect diffi culties in regulating emotions or managing interpersonal relationships in young Spanish people, and these behaviours seem to constitute a unique and latent dimension. Thus, there is a need for intervention programmes focused on managing problems of emotional regulation and maladaptive self-injury behaviours.Antecedentes: muy pocos estudios han explorado la prevalencia y la estructura unidimensional de las autolesiones no suicidas (ANS) –ISAS-I– en adolescentes españoles. Método: en este estudio, estimamos la prevalencia, tipos y funciones de las ANS en 1.733 adolescentes españoles y probamos la estructura factorial unidimensional de las ANS. Resultados: un 24,6% de los adolescentes refi rieron haberse autolesionado al menos una vez en su vida, y un 12,7% se autolesionaron utilizando métodos más graves. Los tipos más frecuentes de ANS fueron interferir en la curación de heridas (14,6%), rascarse (12,5%) y golpearse (11,7%). No encontramos diferencias por género en la frecuencia de las ANS. La mayoría de los participantes que se autolesionaron refi rieron funciones intrapersonales. El análisis factorial confi rmatorio para la estructura de los tipos de ANS mostró un factor único con 10 ítems, apoyando así la unidimensional del constructo de ANS. Conclusiones: las ANS refl ejan difi cultades para regular las emociones o manejar las relaciones interpersonales en los jóvenes españoles y estos comportamientos parecen constituir una dimensión única y latente. Por lo tanto, es necesaria la existencia de programas de intervención enfocados en el manejo de problemas de regulación emocional y de conductas autolesivas no suicidas en este tipo de población.Psicologí