Search

Your search keyword '"León, J. M."' showing total 129 results
Start Over Author "León, J. M."
129 results on '"León, J. M."'

1. The INTERSPEECH 2021 Computational Paralinguistics Challenge: COVID-19 Cough, COVID-19 Speech, Escalation & Primates

Author

Schuller, Björn W., Batliner, Anton, Bergler, Christian, Mascolo, Cecilia, Han, Jing, Lefter, Iulia, Kaya, Heysem, Amiriparian, Shahin, Baird, Alice, Stappen, Lukas, Ottl, Sandra, Gerczuk, Maurice, Tzirakis, Panagiotis, Brown, Chloë, Chauhan, Jagmohan, Grammenos, Andreas, Hasthanasombat, Apinan, Spathis, Dimitris, Xia, Tong, Cicuta, Pietro, Rothkrantz, Leon J. M., Zwerts, Joeri, Treep, Jelle, and Kaandorp, Casper

Subjects
Electrical Engineering and Systems Science - Audio and Speech Processing, Computer Science - Computation and Language, Computer Science - Machine Learning, Computer Science - Sound, 68, I.2.7, I.5.0, J.3
Abstract

The INTERSPEECH 2021 Computational Paralinguistics Challenge addresses four different problems for the first time in a research competition under well-defined conditions: In the COVID-19 Cough and COVID-19 Speech Sub-Challenges, a binary classification on COVID-19 infection has to be made based on coughing sounds and speech; in the Escalation SubChallenge, a three-way assessment of the level of escalation in a dialogue is featured; and in the Primates Sub-Challenge, four species vs background need to be classified. We describe the Sub-Challenges, baseline feature extraction, and classifiers based on the 'usual' COMPARE and BoAW features as well as deep unsupervised representation learning using the AuDeep toolkit, and deep feature extraction from pre-trained CNNs using the Deep Spectrum toolkit; in addition, we add deep end-to-end sequential modelling, and partially linguistic analysis., Comment: 5 pages

Published
2021

4. Aggression Detection in Speech Using Sensor and Semantic Information

Author

Lefter, Iulia, Rothkrantz, Leon J. M., Burghouts, Gertjan J., Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Goebel, Randy, editor, Siekmann, Jörg, editor, Wahlster, Wolfgang, editor, Sojka, Petr, editor, Horák, Aleš, editor, Kopeček, Ivan, editor, and Pala, Karel, editor

Published
2012
Full Text
View/download PDF

5. Learning 3D AAM Fitting with Kernel Methods

Author

Cidota, Marina A., Datcu, Dragos, Rothkrantz, Leon J. M., Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Goebel, Randy, editor, Siekmann, Jörg, editor, Wahlster, Wolfgang, editor, Rutkowski, Leszek, editor, Korytkowski, Marcin, editor, Scherer, Rafał, editor, Tadeusiewicz, Ryszard, editor, Zadeh, Lotfi A., editor, and Zurada, Jacek M., editor

Published
2012
Full Text
View/download PDF

6. Detecting Customers’ Buying Events on a Real-Life Database

Author

Popa, Mirela C., Gritti, Tommaso, Rothkrantz, Leon J. M., Shan, Caifeng, Wiggers, Pascal, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Real, Pedro, editor, Diaz-Pernil, Daniel, editor, Molina-Abril, Helena, editor, Berciano, Ainhoa, editor, and Kropatsch, Walter, editor

Published
2011
Full Text
View/download PDF

7. Addressing Multimodality in Overt Aggression Detection

Author

Lefter, Iulia, Rothkrantz, Leon J. M., Burghouts, Gertjan, Yang, Zhenke, Wiggers, Pascal, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Nierstrasz, Oscar, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Sudan, Madhu, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Vardi, Moshe Y., Series editor, Weikum, Gerhard, Series editor, Goebel, Randy, editor, Siekmann, Jörg, editor, Wahlster, Wolfgang, editor, Habernal, Ivan, editor, and Matoušek, Václav, editor

Published
2011
Full Text
View/download PDF

9. Design and Implementation of a Bayesian Network Speech Recognizer

Author

Wiggers, Pascal, Rothkrantz, Leon J. M., van de Lisdonk, Rob, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Goebel, Randy, editor, Siekmann, Jörg, editor, Wahlster, Wolfgang, editor, Sojka, Petr, editor, Horák, Aleš, editor, Kopeček, Ivan, editor, and Pala, Karel, editor

Published
2010
Full Text
View/download PDF

10. Emotion Recognition from Speech by Combining Databases and Fusion of Classifiers

Author

Lefter, Iulia, Rothkrantz, Leon J. M., Wiggers, Pascal, van Leeuwen, David A., Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Goebel, Randy, editor, Siekmann, Jörg, editor, Wahlster, Wolfgang, editor, Sojka, Petr, editor, Horák, Aleš, editor, Kopeček, Ivan, editor, and Pala, Karel, editor

Published
2010
Full Text
View/download PDF

11. Automatic Lip Reading in the Dutch Language Using Active Appearance Models on High Speed Recordings

Author

Chitu, Alin Gavril, Driel, Karin, Rothkrantz, Leon J. M., Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Goebel, Randy, editor, Siekmann, Jörg, editor, Wahlster, Wolfgang, editor, Sojka, Petr, editor, Horák, Aleš, editor, Kopeček, Ivan, editor, and Pala, Karel, editor

Published
2010
Full Text
View/download PDF

15. Dynamic Scripting in Crisis Environments

Author

Yang, Zhenke, Rothkrantz, Léon J. M., Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, and Aykin, Nuray, editor

Published
2007
Full Text
View/download PDF

16. Human Communication Based on Icons in Crisis Environments

Author

Fitrianie, Siska, Datcu, Dragos, Rothkrantz, Léon J. M., Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Doug, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, and Aykin, Nuray, editor

Published
2007
Full Text
View/download PDF

17. Caracterización de las curvas de crecimiento biológico de la gallina Andaluza Azul, una raza local amenazada.

Author

Galán, I., Arando, A., González, A., Navas, F. J., Salgado, J. I., Díaz, E., Peláez, M. P., León, J. M., Delgado, J. V., and Camacho, M. E.

Abstract

Copyright of Archivos de Zootecnia is the property of Archivos de Zootecnia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2023

18. Two-Dimensional Visual Language Grammar

Author

Fitrianie, Siska, Rothkrantz, Leon J. M., Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Carbonell, Jaime G., editor, Siekmann, Jörg, editor, Sojka, Petr, editor, Kopeček, Ivan, editor, and Pala, Karel, editor

Published
2006
Full Text
View/download PDF

19. Dynamic Bayesian Networks for Language Modeling

Author

Wiggers, Pascal, Rothkrantz, Leon J. M., Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Carbonell, Jaime G., editor, Siekmann, Jörg, editor, Sojka, Petr, editor, Kopeček, Ivan, editor, and Pala, Karel, editor

Published
2006
Full Text
View/download PDF

21. Language-Independent Communication Using Icons on a PDA

Author

Fitrianie, Siska, Rothkrantz, Leon J. M., Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Carbonell, Jaime G., editor, Siekmann, Jörg, editor, Matoušek, Václav, editor, Mautner, Pavel, editor, and Pavelka, Tomáš, editor

Published
2005
Full Text
View/download PDF

22. Modelling Lexical Stress

Author

van Dalen, Rogier C., Wiggers, Pascal, Rothkrantz, Leon J. M., Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Carbonell, Jaime G., editor, Siekmann, Jörg, editor, Matoušek, Václav, editor, Mautner, Pavel, editor, and Pavelka, Tomáš, editor

Published
2005
Full Text
View/download PDF

23. Fusing Data Streams in Continuous Audio-Visual Speech Recognition

Author

Rothkrantz, Leon J. M., Wojdeł, Jacek C., Wiggers, Pascal, Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Carbonell, Jaime G., editor, Siekmann, Jörg, editor, Matoušek, Václav, editor, Mautner, Pavel, editor, and Pavelka, Tomáš, editor

Published
2005
Full Text
View/download PDF

24. Smooth Bayesian Kernel Machines

Author

ter Borg, Rutger W., Rothkrantz, Léon J. M., Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Duch, Włodzisław, editor, Kacprzyk, Janusz, editor, Oja, Erkki, editor, and Zadrożny, Sławomir, editor

Published
2005
Full Text
View/download PDF

25. Multimodal Dialogue Management

Author

Rothkrantz, Leon J. M., Wiggers, Pascal, Flippo, Frans, Woei-A-Jin, Dimitri, van Vark, Robert J., Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Carbonell, Jaime G., editor, Siekmann, Jörg, editor, Sojka, Petr, editor, Kopeček, Ivan, editor, and Pala, Karel, editor

Published
2004
Full Text
View/download PDF

26. Voice Stress Analysis

Author

Rothkrantz, Leon J. M., Wiggers, Pascal, van Wees, Jan-Willem A., van Vark, Robert J., Hutchison, David, editor, Kanade, Takeo, editor, Kittler, Josef, editor, Kleinberg, Jon M., editor, Mattern, Friedemann, editor, Mitchell, John C., editor, Naor, Moni, editor, Nierstrasz, Oscar, editor, Pandu Rangan, C., editor, Steffen, Bernhard, editor, Sudan, Madhu, editor, Terzopoulos, Demetri, editor, Tygar, Dough, editor, Vardi, Moshe Y., editor, Weikum, Gerhard, editor, Carbonell, Jaime G., editor, Siekmann, Jörg, editor, Sojka, Petr, editor, Kopeček, Ivan, editor, and Pala, Karel, editor

Published
2004
Full Text
View/download PDF

30. Dialogue Control in the Alparon System

Author

Rothkrantz, Léon J. M., van Vark, Robert J., Peters, Alexandra, Andeweg, Niels A., Goos, G., editor, Hartmanis, J., editor, van Leeuwen, J., editor, Carbonell, Jaime G., editor, Siekmann, Jörg, editor, Sojka, Petr, editor, Kopeček, Ivan, editor, and Pala, Karel, editor

Published
2000
Full Text
View/download PDF

31. A Text Based Talking Face

Author

Rothkrantz, Léon J. M., Wojdel, Ania, Goos, G., editor, Hartmanis, J., editor, van Leeuwen, J., editor, Carbonell, Jaime G., editor, Siekmann, Jörg, editor, Sojka, Petr, editor, Kopeček, Ivan, editor, and Pala, Karel, editor

Published
2000
Full Text
View/download PDF

32. Caracterización de parámetros de calidad seminal en variedades amenazadas de la raza porcina Ibérico.

Author

Díaz-Ruíz, E., González-Ariza, A., León, J. M., Peláez-Caro, M., Venegas, M., Forero, F. J., Salgado, J., Pérez-Marín, C. C., Navas-González, F. J., Delgado, J. V., Galán-Luque, I., and Arando, A.

Subjects
REFERENCE values, SEMEN, SPERMATOZOA, BOARS, SWINE, MORPHOLOGY, REPRODUCTIVE technology, SPERM banks
Abstract

Copyright of Archivos de Zootecnia is the property of Archivos de Zootecnia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2023

33. Characterization of the organic wool of Lojeña sheep breed as a contribution to its conservation.

Author

Díaz, E., Gonzaléz-Ariza, A., Navas-González, F. J., Aguilera, M., López, B., Iglesias, C., León, J. M., Delgado, J. V., Camacho, M. E., and Arando, A.

Subjects
SHEEP breeding, SHEEP breeds, WOOL, MERINO sheep, CLOTHING industry, STANDARD deviations, HANDICRAFT industries
Abstract

Copyright of Archivos de Zootecnia is the property of Archivos de Zootecnia and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2022

37. Dolor crónico: relación con sintomatología prefrontal y estrés percibido

Author

Paz-Domingo, M.-V., Ruiz-Sánchez-de-León, J.-M., Paz-Solís, J.-F., Gandía-González, M., Mateos-González, A., and Pedrero-Pérez, E.-J.

Subjects
prefrontal cortex, stress, estrés, síntomas cognitivos, corteza prefrontal, neuropsychology, Chronic pain, cognitive symptoms, neuropsicología, Dolor crónico
Abstract

RESUMEN Objetivo: La calidad del afrontamiento del estrés percibido en el dolor crónico está relacionada con el rendimiento de la corteza prefrontal como estructura principal de control y coordinación de control superior de la conducta. El presente trabajo estudia la presencia de sintomatología prefrontal, en forma de problemas para gestionar la cognición, las emociones y el comportamiento, y de estrés percibido en una muestra de personas que sufren dolor crónico. Material y métodos: Se estudiaron 78 participantes con diagnóstico de dolor crónico con edades comprendidas entre 27 y 81 años (media 54,2 y d.t. 13,4). Se analizaron variables sociodemográficas y clínicas junto con los resultados en el Cuestionario Breve de Dolor (CBD) abreviado de 11 ítems para valorar la intensidad e interferencia de dolor, el Inventario de Síntomas Prefrontales (ISP), tanto en su versión completa de 46 ítems como en la abreviada de 20, y la Escala de Estrés Percibido (EEP) abreviada de 10 ítems. Resultados y discusión: Aparecen correlaciones significativas entre la sintomatología prefrontal y la intensidad (r = 0,32) y la interferencia (r = 0,53) del dolor, así como entre el estrés y la interferencia del dolor en el estado del ánimo (r = 0,36). Las personas declaran más sensación dolorosa cuando refieren más problemas de gestión cognitiva y emocional del entorno que las rodea. La interferencia general del dolor se relaciona con más problemas motivacionales y de atención, mientras que la interferencia que el dolor produce en el estado del ánimo incrementa, además, los problemas con el control ejecutivo y emocional. Se propone una ecuación estructural preliminar explicativa del efecto. Conclusión: Los datos sugieren que el estrés percibido por las personas con dolor crónico depende de la incapacidad de la corteza prefrontal para afrontar una situación cambiante o amenazante, y este problema se retroalimenta una y otra vez al ser la persona cada vez menos capaz de afrontar el ambiente. Por tanto, el tratamiento integral del dolor crónico debe incluir intervenciones psicológicas centradas en el afrontamiento del estrés y la optimización cognitiva de las habilidades relacionadas con el funcionamiento prefrontal. ABSTRACT Objective: The quality of perceived stress coping in chronic pain is related to the performance of the prefrontal cortex as the main structure of control and coordination of superior behavior control. The present study explores the presence of prefrontal symptomatology, in the form of problems to manage cognition, emotions and behavior, and perceived stress in a sample of people suffering from chronic pain. Material and methods: We studied 78 participants with a diagnosis of chronic pain ranging in age from 27 to 81 years (mean 54.2 and d.t 13.4). Sociodemographic and clinical variables were analyzed together with the results in the 11-item Short Brief Pain Questionnaire (CBD) to assess the intensity and interference of pain, the Prefrontal Symptom Inventory (ISP), both in its complete version of 46 items and in the abbreviated of 20, and the 10-itme Perceived Scale of Perceived Stress (EEP). Results and discussion: Significant correlations between the prefrontal symptomatology and the intensity (r = 0.32) and the interference (r = 0.53) of the pain, as well as between the stress and the interference of the pain in the mood (r = 0.36). People report more painful feelings when they refer more cognitive and emotional management problems surrounding the environment. The general interference of pain is related to more motivational and attention problems, while the interference that the pain produces in the mood also increases the problems with executive and emotional control. A preliminary structural equation explaining the effect is proposed. Conclusion: The data suggest that the stress perceived by people with chronic pain depends on the inability of the prefrontal cortex to cope with a changing or threatening situation and this problem is fed back over and over as the person is less able to cope with the environment. Therefore, comprehensive treatment of chronic pain should include psychological interventions focused on coping with stress and cognitive optimization of skills related to prefrontal functioning.

Published
2017

38. CANNABIS CONSUMPTION AND RISK OF DEPRESSION: A CROSS-SECTIONAL STUDY.

Author

Pérez A., Sanz, Pérez T., Pérez, Puig F. J., Estupiñá, López D. R., Serrano, Llorente M. C., Pardo, De León J. M., Ruiz Sánchez, Sánchez A. I., Fraguas, and Burgos E., González

Subjects
DEPRESSION in college students, MENTAL illness, INCOME, NONBINARY people, MENTAL depression, YOUNG adults
Abstract

Depressive disorder is at the forefront of mental health problems, particularly among young people. Narcotics and illegal substances are probably one of the main triggers, being cannabis the most consumed worldwide. Recreational cannabis use during youth is directly related to changes in brain activity and structure, increasing the risk of developing mental illnesses. The current study aims to analyze how recreational cannabis use could favor a clinical situation of depression in young adults. For this purpose, an online survey was conducted among college students from five universities in the region of Madrid (Spain). The survey collected data including demographic, PHQ-9 scales, and cannabis consumption. The final sample was 9060 participants (61.5% females, 36.6% males, and 1.9% non-binary). From the sample, 39.4% (CI95%: 38.4 to 40.5) showed symptoms of depression. The analysis showed that 43.9% (CI95%: 41.5 to 46.3) of cannabis users showed depression symptomatology versus 38.4% (CI95%: 37.3 to 39.5) within the non-users group. This was confirmed by a multivariable logistic model (aOR: 1.25, CI95: 1.11 to 1.40). This analysis revealed that other variables also increased the risk of depression symptoms such as being women (aOR: 1.52, CI95: 1.37 to 1.68) and non-binary people (aOR: 1.77, CI95: 1.26 to 2.49), looking for a job (aOR: 1.52, CI95: 1.34 to 1.73), bad perception of family income (aOR: 1.52, CI95: 1.33 to 1.73) and bad perception of academic performance (aOR: 2.39, CI95: 1.42 to 4.11). This crosssectional study determines the potential relationship between cannabis consumption and the high prevalence of depression symptoms in college students. It also highlights the need for new university policies. [ABSTRACT FROM AUTHOR]

Published
2024

39. CORRELATION OF CANNABIS CONSUMPTION WITH ANXIETY, DEPRESSION, AND SUICIDE AMONG YOUNG ADULTS: A SYSTEMATIC REVIEW AND META-ANALYSIS.

Author

Pérez A., Sanz, Pérez T., Pérez, De León J. M., Ruiz Sánchez, Sánchez A. I., Fraguas, Lloente M. C., Pardo, López D. R., Serrano, Puig F. J., Estupiñá, and Burgos E., González

Subjects
MENTAL illness, SUICIDAL ideation, COGNITIVE development, CINAHL database, YOUNG consumers, YOUNG adults
Abstract

Cannabis is the most consumed illegal drug among the world's population, with an estimated 4% of the population (219 million people) using it regularly. In 2021, about 46% of countries identified cannabis as the primary drug linked to substance use disorders, with 34% reporting it as the main reason for seeking treatment. The predominant consumers are young people, who suffer the most severe Health impacts. Despite numerous studies exploring its effects on mental health, much remains unknown This study aims to update whether there is a correlation between cannabis use and mental health disorders (anxiety, depression, and suicide) among young adults. The study design is a systematic review and meta-analysis, following PRISMA standard. The data sources employed were PubMed, Mendeley, Embase, WOS, CINAHL, and Scopus. The studies included were prospective, retrospective, longitudinal, and crosssectional, published from 2013 to 2023, assessing cannabis use and mental disease development in individuals aged 15-30 years. After screening 6242 articles, 35 met the selection criteria and 20 were included for meta-analysis. The quality of bias assessment was addressed using Hoy et al. tool. Summary data extracted were ORs and 2x2 tables. Mixed effects models were fitted using REML method. The analysis showed that cannabis consumption in young adults is associated to higher risk of depression OR of 1.48 aOR 1.32 (95% CI 1.10 to 1.59), risk for suicidal ideation aOR 1.54 (95% CI 1.11 to 2.13), suicidal attempt aOR 1.80 (95% CI 1.30 to 2.49) and for anxiety OR 1.57 (95% CI 1.19 to 2.08). The current systematic review suggests that cannabis consumption at an early age is clearly associated with the development of depression, anxiety, suicidal ideation, and attempts in young people. [ABSTRACT FROM AUTHOR]

Published
2024

40. Facile Synthesis of Pd and PdO Nanoparticles

Author

Buensuceso, J. G., primary, Gutiérrez, R. A., additional, Arroyo, L. Ortega, additional, De León, J. M. O. Rueda, additional, Andrade, X. López, additional, Mendez, M. A. Aguilar, additional, Orea, A. Cruz, additional, and Castaño, V. M., additional

Published
2017
Full Text
View/download PDF

41. Loss of the tumor suppressor spinophilin (PPP1R9B) increases the cancer stem cell population in breast tumors

Author

Ministerio de Economía y Competitividad (España), Instituto de Salud Carlos III, European Commission, Red Temática de Investigación Cooperativa en Cáncer (España), Junta de Andalucía, Ferrer, Irene, Verdugo-Sivianes, Eva M., Castilla, María Ángeles, Meléndez Cadenas, Ricardo, Marín, Juan J., Muñoz-Galván, Sandra, López-Guerra, José Luis, Vieites, Begoña, Ortiz Gordillo, M. J., León, J. M. de, Praena-Fernández, Juan Manuel, Pérez, Marco, Palacios, J., Carnero, Amancio, Ministerio de Economía y Competitividad (España), Instituto de Salud Carlos III, European Commission, Red Temática de Investigación Cooperativa en Cáncer (España), Junta de Andalucía, Ferrer, Irene, Verdugo-Sivianes, Eva M., Castilla, María Ángeles, Meléndez Cadenas, Ricardo, Marín, Juan J., Muñoz-Galván, Sandra, López-Guerra, José Luis, Vieites, Begoña, Ortiz Gordillo, M. J., León, J. M. de, Praena-Fernández, Juan Manuel, Pérez, Marco, Palacios, J., and Carnero, Amancio

Abstract

The spinophilin (Spn, PPP1R9B) gene is located at 17q21.33, a region frequently associated with microsatellite instability and loss of heterozygosity, especially in breast tumors. Spn is a regulatory subunit of phosphatase1a (PP1), which targets the catalytic subunit to distinct subcellular locations. Spn downregulation reduces PPP1CA activity against the retinoblastoma protein, pRb, thereby maintaining higher levels of phosphorylated pRb. This effect contributes to an increase in the tumorigenic properties of cells in certain contexts. Here, we explored the mechanism of how Spn downregulation contributes to the malignant phenotype and poor prognosis in breast tumors and found an increase in the stemness phenotype. Analysis of human breast tumors showed that Spn mRNA and protein are reduced or lost in 15% of carcinomas, correlating with a worse prognosis, a more aggressive tumor phenotype and triple-negative tumors, whereas luminal tumors showed high Spn levels. Downregulation of Spn by shRNA increased the stemness properties along with the expression of stem-related genes (Sox2, KLF4, Nanog and OCT4), whereas ectopic overexpression of Spn cDNA reduced these properties. Breast tumor stem cells appeared to have low levels of Spn mRNA, and Spn loss correlated with increased stem-like cell appearance in breast tumors as indicated by an increase in CD44+/CD24- cells. A reduction of the levels of PPP1CA mimicked the cancer stem-like cell phenotype of Spn downregulation, suggesting that the mechanism of Spn involves PP1a. These increased cancer stem cell-like properties with reduced Spn might account for the malignant phenotype observed in Spn-loss tumors and may contribute to a worse patient prognosis.

Published
2016

45. Loss of the tumor suppressor spinophilin (PPP1R9B) increases the cancer stem cell population in breast tumors

Author

Ferrer, I, primary, Verdugo-Sivianes, E M, additional, Castilla, M A, additional, Melendez, R, additional, Marin, J J, additional, Muñoz-Galvan, S, additional, Lopez-Guerra, J L, additional, Vieites, B, additional, Ortiz-Gordillo, M J, additional, De León, J M, additional, Praena-Fernandez, J M, additional, Perez, M, additional, Palacios, J, additional, and Carnero, A, additional

Published
2015
Full Text
View/download PDF

46. A model to infer the demographic structure evolution of endangered donkey populations.

Author

Navas, F. J., Jordana, J., León, J. M., Barba, C., and Delgado, J. V.

Abstract

Stemming from The Worldwide Donkey Breeds Project, an initiative aiming at connecting international researchers and entities working with the donkey species, molecularly tested pedigree analyses were carried out to study the genetic diversity, structure and historical evolution of the Andalusian donkey breed since the 1980s to infer a model to study the situation of international endangered donkey breeds under the remarkably frequent unknown genetical background status behind them. Demographic and genetic variability parameters were evaluated using ENDOG (v4.8). Pedigree completeness and generation length were quantified for the four gametic pathways. Despite mean inbreeding was low, highly inbred animals were present in the pedigree. Average coancestry, relatedness, and non-random mating degree trends were computed. The effective population size based on individual inbreeding rate was about half when based on individual coancestry rate. Nei’s distances and equivalent subpopulations number indicated differentiated farms in a highly structured population. Although genetic diversity loss since the founder generations could be considered small, intraherd breeding policies and the excessive contribution of few ancestors to the gene pool could lead to narrower pedigree bottlenecks. Long average generation intervals could be considered when reducing inbreeding. Wright’s fixation statistics indicated slight inbreeding between farms. Pedigree shallowness suggested applying new breeding strategies to reliably estimate descriptive parameters and control the negative effects of inbreeding, which could indeed, mean the key to preserve such valuable animal resources avoiding the extinction they potentially head towards, making the present model become an international referent when assessing endangered donkey populations. [ABSTRACT FROM PUBLISHER]

Published
2017
Full Text
View/download PDF

47. INFLUENCIA DE ARRECIFES ARTIFICIALES REEF BALL DE LA ENSENADA DE Xpicob, SOBRE LA ESTRUCTURA DE LA MEIOFAUNA Y SEDIMENTOS RECIENTES.

Author

Avilés-Ramírez, G. A., González-León, J. M., Poot-Esparza, A. P., Medina-García, M., and Rojas-González, R. I.

Abstract

Copyright of Agro Productividad is the property of Colegio de Postgraduados and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2016

48. Rabdomiólisis tras la práctica de spinning: una asociación peculiar.

Author

Torre s-León, J. M., Coca-Benito, D., Domínguez-Alegría, A. R., and Chamizo-Alarcón, M.

Abstract

Copyright of Revista Andaluza de Medicina del Deporte is the property of Centro Andaluza de Medicina del Deporte and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2016
Full Text
View/download PDF

49. Genetic parameters of traits associated with the growth curve in Segureña sheep.

Author

Lupi, T. M., León, J. M., Nogales, S., Barba, C., and Delgado, J. V.

Abstract

This paper studies the genetic importance of growth curve parameters and their relevance as selection criteria in breeding programmes of Segureño sheep. Logistic and Verhulst growth functions were chosen for their best fit to BW/age in this breed; the first showed the best general fit and the second the best individual fit. Live weights of 41 330 individuals from the historical archives of the National Association of Segureña Sheep Breeders were used in the analysis. The progeny of 1464 rams and 27 048 ewes were used to study the genetic and phenotypic parameters of growth curve parameters and derived traits. Reproductive management in the population consists in controlled natural mating inside every herd, with a minimum of 15% of the females fertilized by artificial insemination with fresh semen; with the purpose being the herd genetic connections, all herd genealogies are screened with DNA markers. Estimates of growth curve parameters from birth to 80 days were obtained for each individual and each function by the non-linear regression procedure using IBM SPSS statistics (version 21) with the Levenberg-Marquart estimation method. (Co)variance components and genetic parameters were estimated by using the REML/Animal model methodology. The heritability of mature weight was estimated as 0.41 ± 0.042 and 0.38 ± 0.021 with the logistic and Verhulst models, respectively, and the heritability of other parameters ranged from 0.41 to 0.62 and 0.37 to 0.61, with the models, respectively. A negative genetic correlation between mature weight and rate of maturing was found. [ABSTRACT FROM AUTHOR]

Published
2016
Full Text
View/download PDF

50. Programa de gestión genética del caballo

Author

Cabello, A., Delgado Bermejo, Juan Vicente, Vega Plá, José Luis, León, J. M., Rodríguez de la Borbolla, A., Vallecillo, A., Cabello, A., Delgado Bermejo, Juan Vicente, Vega Plá, José Luis, León, J. M., Rodríguez de la Borbolla, A., and Vallecillo, A.

Abstract

El caballo Hispano-Árabe puede considerarse una raza sintética formada en España desde hace más de dos siglos por la intención de los ganaderos de contar con una raza de trabajo y deporte adecuada a las necesidades de la época. Hoy en día está reconocido oficialmente como una raza autóctona de protección especial, debido a sus escasos efectivos. En esta comunicación se presenta el programa de gestión genética de la raza, el cual se está desarrollando de manera interdisciplinar e inter-institucional. Consta de los siguientes apartados: Diseño y puesta en marcha de un programa de mejora y de conservación; Creación de un banco de germoplasma de los reproductores destacados; Estudio de la estructura genética de la raza utilizando marcadores microsatélites del ADN; Formación técnica y divulgación de la raza. Se describen el programa y las actuaciones desarrolladas hasta el momento.

Published
2005

Catalog

Books, media, physical & digital resources
See catalog results