A PESA-AGB study

This study uses a MCDA tool to analyse and improve Spanish airports performance and efficiency. Thus, a holistic study using MACBETH (with PESA-AGB) is used. This study has never been applied before in Spanish airports. Firstly, a literature review related to this study keywords is conducted, as well as about benchmarking concept applied specifically to airports. Secondly, several methodologies in used to benchmark airports are reviewed and compared. Thirdly, airport performance and efficiency issues are addressed and described. Finally, the MCDA-MACBETH (with PESA-AGB) tool is applied to 4 Spanish airports. Spanish airports belonging to AENA transported 263,753,406 passengers in 2018 with an increase compared to 2017 of 5.8%. General data enables to conclude that Spanish air transportation system is growing annually and hence there is the need to improve airports performance and efficiency, also to maintain the high levels of quality to address the growing demand. Spanish air transportation system is growing annually and is it upmost important to maintain high levels of quality to address such demand. Through this study, performance and efficiency improvements are seek within several airport key areas such as Safety and Security, Quality Service, Productivity and Effectiveness, Financial and Environment. As far as known, this study has never been applied before in Spanish airports.info:eu-repo/semantics/publishedVersio

Ventricular Tachycardia and Early Fibrillation in Patients With Brugada Syndrome and Ischemic Cardiomyopathy Show Predictable Frequency-Phase Properties on the Precordial ECG Consistent With the Respective Arrhythmogenic Substrate

[EN] Background¿ Ventricular fibrillation (VF) has been proposed to be maintained by localized high-frequency sources. We tested whether spectral-phase analysis of the precordial ECG enabled identification of periodic activation patterns generated by such sources. Methods and Results¿Precordial ECGs were recorded from 15 ischemic cardiomyopathy and 15 Brugada syndrome (type 1 ECG) patients during induced VF and analyzed in the frequency-phase domain. Despite temporal variability, induced VF episodes lasting 19.6±7.9 s displayed distinctly high power at a common frequency (shared frequency, 5.7±1.1 Hz) in all leads about half of the time. In patients with Brugada syndrome, phase analysis of shared frequency showed a V1¿V6 sequence as would be expected from patients displaying a type 1 ECG pattern (P<0.001). Hilbert-based phases confirmed that the most stable sequence over the whole VF duration was V1¿V6. Analysis of shared frequency in ischemic cardiomyopathy patients with anteroseptal (n=4), apical (n=3), and inferolateral (n=4) myocardial infarction displayed a sequence starting at V1¿V2, V3¿V4, and V5¿V6, respectively, consistent with an activation origin at the scar location (P=0.005). Sequences correlated with the Hilbert-based phase analysis (P<0.001). Posterior infarction (n=4) displayed no specific sequence. On paired comparison, phase sequences during monomorphic ventricular tachycardia correlated moderately with VF (P<0.001). Moreover, there was a dominant frequency gradient from precordial leads facing the scar region to the contralateral leads (5.8±0.8 versus 5.4±1.1 Hz; P=0.004). Conclusions¿Noninvasive analysis of ventricular tachycardia and early VF in patients with Brugada syndrome and ischemic cardiomyopathy shows a predictable sequence in the frequency-phase domain, consistent with anatomic location of the arrhythmogenic substrate.This study was supported by the National Heart, Lung and Blood Institute (P01-HL039707, P01-HL087226 R01-HL118304); the Spanish Society of Cardiology, Arrhythmia and Electrophysiology Section; the Leducq Foundation, Paris, France; Centro Nacional de Investigaciones Cientificas, Madrid, Spain; Generalitat Valenciana, Valencia, Spain (PROMETEO/2012/030); VI Plan Nacional de Investigacion Cientifica, Desarrollo e Innovacion Tecnologica from the Ministerio de Economia y Competitividad of Spain (TIN2012-37546-C03-01); and the European Commission (European Regional Development Funds [ERDF]-FEDER)Calvo, D.; Atienza, F.; Saiz Rodríguez, FJ.; Martinez, L.; Ávila, P.; Rubín, J.; Herreros, B.... (2015). Ventricular Tachycardia and Early Fibrillation in Patients With Brugada Syndrome and Ischemic Cardiomyopathy Show Predictable Frequency-Phase Properties on the Precordial ECG Consistent With the Respective Arrhythmogenic Substrate. Circulation Arrhythmia and Electrophysiology. 8(5):1133-1143. https://doi.org/10.1161/CIRCEP.114.002717S1133114385Gray, R. A., Jalife, J., Panfilov, A. V., Baxter, W. T., Cabo, C., Davidenko, J. M., … Winfree, A. T. (1995). Mechanisms of Cardiac Fibrillation. Science, 270(5239), 1222-1222. doi:10.1126/science.270.5239.1222Keldermann, R. H., ten Tusscher, K. H. W. J., Nash, M. P., Bradley, C. P., Hren, R., Taggart, P., & Panfilov, A. V. (2009). A computational study of mother rotor VF in the human ventricles. American Journal of Physiology-Heart and Circulatory Physiology, 296(2), H370-H379. doi:10.1152/ajpheart.00952.2008Ten Tusscher, K. H. W. J., Mourad, A., Nash, M. P., Clayton, R. H., Bradley, C. P., Paterson, D. J., … Taggart, P. (2009). Organization of ventricular fibrillation in the human heart: experiments and models. Experimental Physiology, 94(5), 553-562. doi:10.1113/expphysiol.2008.044065CLAYTON, R. H., MURRAY, A., & CAMPBELL, R. W. F. (1995). Evidence for Electrical Organization During Ventricular Fibrillation in the Human Heart. Journal of Cardiovascular Electrophysiology, 6(8), 616-624. doi:10.1111/j.1540-8167.1995.tb00438.xCLAYTON, R. H., MURRAY, A., & CAMPBHLL, R. W. F. (1995). Analysis of the Body Surface ECG Measured in Independent Leads During Ventricular Fibrillation in Humans. Pacing and Clinical Electrophysiology, 18(10), 1876-1881. doi:10.1111/j.1540-8159.1995.tb03835.xArenal, A., del Castillo, S., Gonzalez-Torrecilla, E., Atienza, F., Ortiz, M., Jimenez, J., … Almendral, J. (2004). Tachycardia-Related Channel in the Scar Tissue in Patients With Sustained Monomorphic Ventricular Tachycardias. Circulation, 110(17), 2568-2574. doi:10.1161/01.cir.0000145544.35565.47Warren, M., Guha, P. K., Berenfeld, O., Zaitsev, A., Anumonwo, J. M. B., Dhamoon, A. S., … Jalife, J. (2003). Blockade of the Inward Rectifying Potassium Current Terminates Ventricular Fibrillation in the Guinea Pig Heart. Journal of Cardiovascular Electrophysiology, 14(6), 621-631. doi:10.1046/j.1540-8167.2003.03006.xEfron, B., & Tibshirani, R. J. (1993). An Introduction to the Bootstrap. doi:10.1007/978-1-4899-4541-9Nademanee, K., Veerakul, G., Chandanamattha, P., Chaothawee, L., Ariyachaipanich, A., Jirasirirojanakorn, K., … Ngarmukos, T. (2011). Prevention of Ventricular Fibrillation Episodes in Brugada Syndrome by Catheter Ablation Over the Anterior Right Ventricular Outflow Tract Epicardium. Circulation, 123(12), 1270-1279. doi:10.1161/circulationaha.110.972612Berenfeld, O., Zaitsev, A. V., Mironov, S. F., Pertsov, A. M., & Jalife, J. (2002). Frequency-Dependent Breakdown of Wave Propagation Into Fibrillatory Conduction Across the Pectinate Muscle Network in the Isolated Sheep Right Atrium. Circulation Research, 90(11), 1173-1180. doi:10.1161/01.res.0000022854.95998.5cGuillem, M. S., Climent, A. M., Millet, J., Arenal, Á., Fernández-Avilés, F., Jalife, J., … Berenfeld, O. (2013). Noninvasive Localization of Maximal Frequency Sites of Atrial Fibrillation by Body Surface Potential Mapping. Circulation: Arrhythmia and Electrophysiology, 6(2), 294-301. doi:10.1161/circep.112.000167Massé, S., Downar, E., Chauhan, V., Sevaptsidis, E., & Nanthakumar, K. (2007). Ventricular fibrillation in myopathic human hearts: mechanistic insights from in vivo global endocardial and epicardial mapping. American Journal of Physiology-Heart and Circulatory Physiology, 292(6), H2589-H2597. doi:10.1152/ajpheart.01336.2006Nair, K., Umapathy, K., Farid, T., Masse, S., Mueller, E., Sivanandan, R. V., … Nanthakumar, K. (2011). Intramural Activation During Early Human Ventricular Fibrillation. Circulation: Arrhythmia and Electrophysiology, 4(5), 692-703. doi:10.1161/circep.110.961037Bradley, C. P., Clayton, R. H., Nash, M. P., Mourad, A., Hayward, M., Paterson, D. J., & Taggart, P. (2011). Human Ventricular Fibrillation During Global Ischemia and Reperfusion. Circulation: Arrhythmia and Electrophysiology, 4(5), 684-691. doi:10.1161/circep.110.961284WIT, A. L., DILLON, S. M., COROMILAS, J., SALTMAN, A. E., & WALDECKER, B. (1990). Anisotropic Reentry in the Epicardial Border Zone of Myocardial Infarcts. Annals of the New York Academy of Sciences, 591(1 Mathematical), 86-108. doi:10.1111/j.1749-6632.1990.tb15083.xCoromilas, J., Costeas, C., Deruyter, B., Dillon, S. M., Peters, N. S., & Wit, A. L. (2002). Effects of Pinacidil on Electrophysiological Properties of Epicardial Border Zone of Healing Canine Infarcts. Circulation, 105(19), 2309-2317. doi:10.1161/01.cir.0000016292.14390.16Zaitsev, A. V., Guha, P. K., Sarmast, F., Kolli, A., Berenfeld, O., Pertsov, A. M., … Jalife, J. (2003). Wavebreak Formation During Ventricular Fibrillation in the Isolated, Regionally Ischemic Pig Heart. Circulation Research, 92(5), 546-553. doi:10.1161/01.res.0000061917.23107.f7Vaquero, M., Calvo, D., & Jalife, J. (2008). Cardiac fibrillation: From ion channels to rotors in the human heart. Heart Rhythm, 5(6), 872-879. doi:10.1016/j.hrthm.2008.02.034Wu, T.-J., Lin, S.-F., Baher, A., Qu, Z., Garfinkel, A., Weiss, J. N., … Chen, P.-S. (2004). Mother Rotors and the Mechanisms of D600-Induced Type 2 Ventricular Fibrillation. Circulation, 110(15), 2110-2118. doi:10.1161/01.cir.0000143834.51102.91Wu, T.-J., Ong, J. J. ., Hwang, C., Lee, J. J., Fishbein, M. C., Czer, L., … Chen, P.-S. (1998). Characteristics of wave fronts during ventricular fibrillation in human hearts with dilated cardiomyopathy: role of increased fibrosis in the generation of reentry. Journal of the American College of Cardiology, 32(1), 187-196. doi:10.1016/s0735-1097(98)00184-3Calvo, D., Atienza, F., Jalife, J., Martinez-Alzamora, N., Bravo, L., Almendral, J., … Berenfeld, O. (2012). High-rate pacing-induced atrial fibrillation effectively reveals properties of spontaneously occurring paroxysmal atrial fibrillation in humans. Europace, 14(11), 1560-1566. doi:10.1093/europace/eus180Pak, H.-N., Oh, Y.-S., Liu, Y.-B., Wu, T.-J., Karagueuzian, H. S., Lin, S.-F., & Chen, P.-S. (2003). Catheter Ablation of Ventricular Fibrillation in Rabbit Ventricles Treated With β-Blockers. Circulation, 108(25), 3149-3156. doi:10.1161/01.cir.0000104563.12408.12Yokokawa, M., Desjardins, B., Crawford, T., Good, E., Morady, F., & Bogun, F. (2013). Reasons for Recurrent Ventricular Tachycardia After Catheter Ablation of Post-Infarction Ventricular Tachycardia. Journal of the American College of Cardiology, 61(1), 66-73. doi:10.1016/j.jacc.2012.07.059Marrouche, N. F., Verma, A., Wazni, O., Schweikert, R., Martin, D. O., Saliba, W., … Natale, A. (2004). Mode of initiation and ablation of ventricular fibrillation storms in patients with ischemic cardiomyopathy. Journal of the American College of Cardiology, 43(9), 1715-1720. doi:10.1016/j.jacc.2004.03.00

IMPLEMENTATION OF A PHOTOVOLTAIC FLOATING COVER FOR IRRIGATION RESERVOIRS

[EN] The article presents the main features of a floating photovoltaic cover system (FPCS) for water irrigation reservoirs whose purpose is to reduce the evaporation of water while generating electrical power. The system consists of polyethylene floating modules which are able to adapt to varying reservoir water levels by means of tension bars and elastic fasteners. (C) 2013 Elsevier Ltd. All rights reserved.Redón-Santafé, M.; Ferrer-Gisbert, P.; Sánchez-Romero, F.; Torregrosa Soler, JB.; Ferran Gozalvez, JJ.; Ferrer Gisbert, CM. (2014). IMPLEMENTATION OF A PHOTOVOLTAIC FLOATING COVER FOR IRRIGATION RESERVOIRS. Journal of Cleaner Production. 66:568-570. doi:10.1016/j.jclepro.2013.11.006S5685706

A trial comparing growing rabbits differing in 18 generations of selection for growth rate reveals a potential lack of effectiveness in the genetic selection progress

[EN] Simple Summary There is evidence that the genetic progress in paternal rabbit lines is lower than expected due to animal- and environmental-related factors, as well as founding factors intrinsically linked to the effectiveness of the selection process. In response to this question, we conducted a trial to evaluate the response after 18 generations of selection for increased growth rate within a paternal line on rabbit performance. Our results indicate that there were no differences in the key indicators in selection for growth rate (average daily gain and feed conversion ratio) between both populations differing in the generation of selection. These findings indicate a lack of effectiveness in the genetic progress of paternal rabbit lines based on different works carried out with these same genetic lines and generations.Abstract A total of 338 weaned rabbits (from the R line, selected for post-weaning growth rate) were used to evaluate the response to 18 generations of selection for increased growth rate on rabbit performance. Animals were obtained from two vitrified populations of the R line: R19V, belonging to the 18th generation (n = 165), and R37V, belonging to the 36th generation (n = 173), were allocated in individual and collective pens (178 and 160, respectively). A fattening trial was conducted from weaning (28 d of age until 63 d of age). During the trial, the body weight (BW), daily feed intake (DFI), average daily gain (ADG) and feed conversion ratio (FCR) were weekly monitored. Additionally, mortality and morbidity were daily registered. On days 49 to 53, an apparent faecal digestibility trial was also performed (12 animals per generation). Our results indicate that the generation of selection for growth rate did not affect mortality and morbidity. There were no differences in the diet digestibility according to the generation of selection. Regarding performance traits, R37V animals showed higher global BW (+6.7%; p = 0.0011) than R19V animals. R37V animals showed the same BW at weaning; however, R37V animals showed higher BW values in the last three weeks compared with R19V animals. Animals from the R37V generation also showed a higher DFI from 56 to 63 d of age (+12%; p = 0.0152) than R19V animals. However, there were no differences in global ADG and FCR between generations. These results indicate that the selection for growth rate in growing rabbits has slowed down, suggesting a lack of effectiveness in the genetic progress.We are grateful to the Veterinary Medicine Faculty of Universidad Cardenal Herrera-CEU.Marín-García, PJ.; Martinez-Paredes, E.; Ródenas Martínez, L.; Llobat, L.; Cambra López, M.; Blas Ferrer, E.; Pascual Amorós, JJ. (2023). A trial comparing growing rabbits differing in 18 generations of selection for growth rate reveals a potential lack of effectiveness in the genetic selection progress. Animals. 13(12):1-11. https://doi.org/10.3390/ani13233625111131

Do Growing Rabbits with a High Growth Rate Require Diets with High Levels of Essential Amino Acids? A Choice-Feeding Trial

[EN] Two diets were designed to investigate the effect of the growth rate on amino acid requirements in growing rabbits: M diet (with medium levels of amino acids, following current nutritional recommendations for growing rabbits) and H diet (with high levels of lysine, sulphur amino acids and threonine compared with current nutritional recommendations). Performance, nutrient retention and digestibility (faecal and ileal) trials, as well as a choice-feeding test were conducted. We found no differences in animal performance, nutrient retention and digestibility parameters between diets, but the animals showed a preference for the M diet, expressed by a high intra-individual repeatability in preference. Our results provide useful information and nutrition tools to move towards precision protein nutrition in growing rabbits. As a consequence of the genetic selection process in growing rabbits, there are currently fast-growing animals exhibiting an average daily gain that may exceed 45 g/d. The protein requirements of these animals, namely amino acid requirements, may differ from animals with low growth rates. The objective of this work was to evaluate growth performance, the coefficient of total tract apparent digestibility (CTTAD), the apparent ileal digestibility (AID) of amino acids and nutrient retention of fast-growing rabbits when they had access to a diet with high levels of amino acids and/or a diet formulated with current nutritional recommendations in a choice-feeding trial. To this end, two diets were formulated: the M diet following current nutritional recommendations for growing rabbits (including 8.1, 5.8 and 6.9 g/kg dry matter (DM) of total lysine, sulphur amino acids and threonine, respectively) and the H diet with higher levels of total lysine, sulphur amino acids and threonine (9.4, 6.6 and 7.8 g/kg DM, respectively). A total of 220 weaned rabbits, from a paternal line selected for the growth rate, had free access to the M diet, the H diet or both (MH) diets from 28 to 63 days of age. The CTTAD of DM, crude protein and gross energy from 49 to 53 days of age as well as the AID of amino acids of the diets at 63 days of age were determined. Protein, amino acids and energy retained in the empty body from 28 to 63 days of age were also registered. No significant differences in growth performance, CTTAD, AID and nutrient retention between dietary treatments were observed. However, animals fed the H diet showed a higher AID of cysteine (p < 0.05) and higher threonine retention (p < 0.05) compared to the M diet. As regards the choice-feeding trial, MH animals showed a higher feed intake of the M diet compared to the H diet (+8.61%; p < 0.001), and furthermore, more than 50% of the animals preferred the M diet throughout the experimental period (p < 0.05). Our results suggest that animals with high growth rates do not show significantly higher productive traits when fed the H diet compared to the M diet. As regards choice feeding, MH animals were capable of choosing their preferred diet, showing high intra-individual repeatability in preference for the M diet. It would be interesting to continue studying this behaviour of choice based on amino acid levels.This research was funded by the Interministerial Commission for Science and Technology (CICYT; grant no. AGL2017-85162-C2-1-R).Marín-García, PJ.; López Luján, MDC.; Ródenas Martínez, L.; Martinez-Paredes, E.; Cambra López, M.; Blas Ferrer, E.; Pascual Amorós, JJ. (2021). Do Growing Rabbits with a High Growth Rate Require Diets with High Levels of Essential Amino Acids? A Choice-Feeding Trial. Animals. 11(3):1-13. https://doi.org/10.3390/ani11030824S11311

Influence of Type 2 Diabetes in the Association of PNPLA3 rs738409 and TM6SF2 rs58542926 Polymorphisms in NASH Advanced Liver Fibrosis

Advanced fibrosis; Nonalcoholic steatohepatitis; Type 2 diabetesFibrosis avanzada; Esteatohepatitis no alcohólica; Diabetes tipo 2Fibrosi avançada; Esteatohepatitis no alcohòlica; Diabetis tipus 2Nonalcoholic steatohepatitis (NASH) is a leading cause of cirrhosis in western countries. Insulin resistance (IR), type 2 diabetes (T2D), and the polymorphisms patatin-like phospholipase domain-containing 3 (PNPLA3) rs738409 and transmembrane 6 superfamily member 2 (TM6SF2) rs58542926 are independent risk factors of NASH. Nevertheless, little is known about the interaction between IR and T2D with these polymorphisms in the pathogenesis of NASH and the development of advanced fibrosis. Thus, our study aimed to investigate this relationship. This is a cross-sectional study including NASH patients diagnosed by liver biopsy, at the Vall d’Hebron University Hospital. A total of 140 patients were included (93 T2D, 47 non-T2D). T2D (OR = 4.67; 95%CI 2.13–10.20; p < 0.001), PNPLA3 rs738409 and TM6SF2 rs58542926 polymorphisms (OR = 3.94; 95%CI 1.63–9.54; p = 0.002) were independently related with advanced liver fibrosis. T2D increased the risk of advance fibrosis on top of the two polymorphisms (OR = 14.69; 95%CI 3.03–77.35; p = 0.001 for PNPLA3 rs738409 and OR = 11.45; 95%CI 3.16–41.55; p < 0.001 for TM6SF2 rs58542926). In non-T2D patients, the IR (HOMA-IR ≥ 5.2, OR = 14.33; 95%CI 2.14–18.66; p = 0.014) increased the risk of advanced fibrosis when the polymorphisms were present (OR = 19.04; 95%CI 1.71–650.84; p = 0.042). The T2D and IR status increase the risk of advanced fibrosis in patients with NASH carrying the PNPLA3 rs738409 and/or TM6SF2 rs58542926 polymorphisms, respectively

When Sugar Reaches the Liver: Phenotypes of Patients with Diabetes and NAFLD

MODY diabetes; Liver fibrosis; Type 2 diabetesDiabetes MODY; Fibrosis hepática; Diabetes tipo 2Diabetis MODY; Fibrosi hepàtica; Diabetis tipus 2Type 2 diabetes mellitus (T2DM) and non-alcoholic fatty liver disease (NAFLD) have been traditionally linked to one another. Recent studies suggest that NAFLD may be increasingly common in other types of diabetes such as type 1 diabetes (T1DM) and less frequently ketone-prone and Maturity-onset Diabetes of the Young (MODY) diabetes. In this review, we address the relationship between hyperglycemia and insulin resistance and the onset and progression of NAFLD. In addition, despite the high rate of patients with T2DM and other diabetes phenotypes that can alter liver metabolism and consequently develop steatosis, fibrosis, and cirrhosis, NALFD screening is not still implemented in the daily care routine. Incorporating a clinical algorithm created around a simple, non-invasive, cost-effective model would identify high-risk patients. The principle behind managing these patients is to improve insulin resistance and hyperglycemia states with lifestyle changes, weight loss, and new drug therapies

Alberdi no está en venta : espacios, historias y relatos de luchas y resistencias

Defendamos Alberdi UNCOR-45 es un proyecto colectivo realizado en conjunto con la Multisectorial Defendamos Alberdi de la ciudad de Córdoba, Argentina, que nace a mediados del 2013 en el marco de los proyectos de voluntariado universitario promovido por la Secretaria de Políticas Universitarias y el Ministerio de Educación de la Nación. Este proyecto fue realizado de forma colectiva entre docentes, egresadas y egresados, estudiantes de diversas carreras (Geografía, Trabajo Social, Letras, Arquitectura, Ciencias de la Información, Antropología, Artes e Historia) y miembros de la Multisectorial, a los que luego se sumaron vecinas y vecinos de barrio Alberdi que se interesaron por participar de las actividades que se llevaban a cabo. El objetivo que dio origen al proyecto fue el de contribuir al proceso de construcción colectiva y participativa de conocimiento en torno a las identidades barriales, definición/usos del concepto de patrimonio y territorialidades presentes en barrio Alberdi; haciendo foco en el reconocimiento de las vecinas y los vecinos como principales protagonistas de la historia y relatos del barrio. El motor de nuestra práctica fue la recuperación y reconstrucción de lo que ellas y ellos piensan, opinan, recuerdan y recuperan de este espacio. Alberdi es uno de los denominados "Barrios Pueblo", que en los últimos años atraviesa profundas transformaciones urbanas vinculadas al avance de nuevos mercados urbanos y de la especulación inmobiliaria. Se trata de un barrio de sectores obreros populares y estudiantiles, con pequeñas industrias y talleres que se vieron fuertemente afectadas por las políticas neoliberales de los noventa; llevando al cierre de fábricas (como la Cervecería Córdoba) y la consecuente pérdida de fuentes de trabajo y deterioro de las condiciones materiales que se manifiestan en el paisaje barrial. La historia de despojos y resistencias en este espacio datan desde fines del siglo XIX, cuando los Comechingones del denominado Pueblo de La Toma (hoy Alberdi) fueron despojados de sus tierras a través de diversas estrategias. Dicha comunidad actualmente reclama el derecho a su cultura e identidad, reclamo acompañado por el Instituto de Culturas Aborígenes (ICA). Por su parte, el barrio ha sido y es actualmente el destino de migrantes de diversas comunidades; entre ellas la peruana, boliviana y afros (con mayor presencia de nacionalidad haitiana, colombiana y senegalesa) que lentamente, desde sus prácticas y experiencias, se fueron apropiando del espacio barrial y compartiendo sus vivencias. Es por ello que Alberdi se destaca por ser un barrio con una gran heterogeneidad cultural y social. La Multisectorial Defendamos Alberdi está conformada por numerosas organizaciones e instituciones, tanto del propio barrio como de otras zonas de la ciudad donde se producen transformaciones urbanas y problemáticas similares1, que desarrollan actividades en torno a diversas problemáticas que ocurren en Alberdi y a la defensa del patrimonio e identidad barrial contra la especulación y avance del mercado inmobiliario. Los colectivos parte, poseen particularidades que hacen compleja la búsqueda de acuerdos; a la vez que enriquecen el intercambio por ser portadoras de una gran cantidad de experiencias respecto de la historia y cotidianeidad barrial. Las propias organizaciones destacan la necesidad de la construcción conjunta de herramientas que permitan el rescate y valorización de experiencias y conocimientos que faciliten acuerdos para llevar adelante reclamos y gestiones frente al estado municipal y provincial, principalmente. Es por ello, que el proyecto Defendamos Alberdi, surgió como un devenir de experiencias anteriores que veníamos realizando junto a la Multisectorial y desde los cuales se apostó a contribuir en espacios de reflexión-acción.Fil: Pedrazzani, Carla Eleonora. Universidad Nacional de Córdoba. Facultad de Filosofía y Humanidades. Departamento de Geografía; Argentina.Fil: Irazoqui, Cecilia. Universidad Nacional de Córdoba. Facultad de Filosofía y Humanidades. Departamento de Geografía; Argentina.Fil: Aichino, Celeste. Universidad Nacional de Córdoba. Facultad de Filosofía y Humanidades. Escuela de Letras; Argentina.Fil: Santa, Damián. Universidad Nacional de Córdoba. Facultad de Filosofía y Humanidades. Escuela de Historia; Argentina.Fil: Palladino, Lucas. Universidad Nacional de Córdoba. Facultad de Filosofía y Humanidades. Departamento de Geografía; Argentina.Fil: Aichino, Gina Lucía. Universidad Nacional de Córdoba. Facultad de Filosofía y Humanidades. Departamento de Geografía; Argentina.Fil: Garay, María Sol. Universidad Nacional de Córdoba. Facultad de Filosofía y Humanidades. Departamento de Geografía; Argentina.Fil: Lipari, Renata. Universidad Nacional de Córdoba. Facultad de filosofía y Humanidades. Departamento de Geografía; Argentina.Fil: Llorens, Santiago. Universidad Nacional de Córdoba. Facultad de Filosofía y Humanidades. Departamento de Geografía; Argentina.Geografía Cultural y Económic

Search for tt¯ resonances in fully hadronic final states in pp collisions at √s = 13 TeV with the ATLAS detector

This paper presents a search for new heavy particles decaying into a pair of top quarks using 139 fb of proton-proton collision data recorded at a centre-of-mass energy of s = 13 TeV with the ATLAS detector at the Large Hadron Collider. The search is performed using events consistent with pair production of high-transverse-momentum top quarks and their subsequent decays into the fully hadronic final states. The analysis is optimized for resonances decaying into a tt¯ pair with mass above 1.4 TeV, exploiting a dedicated multivariate technique with jet substructure to identify hadronically decaying top quarks using large-radius jets and evaluating the background expectation from data. No significant deviation from the background prediction is observed. Limits are set on the production cross-section times branching fraction for the new Z′ boson in a topcolor-assisted-technicolor model. The Z′ boson masses below 3.9 and 4.7 TeV are excluded at 95% confidence level for the decay widths of 1% and 3%, respectively. [Figure not available: see fulltext.

Constraints on Higgs boson production with large transverse momentum using H →b b ¯ decays in the ATLAS detector

This paper reports constraints on Higgs boson production with transverse momentum above 1 TeV. The analyzed data from proton-proton collisions at a center-of-mass energy of 13 TeV were recorded with the ATLAS detector at the Large Hadron Collider from 2015 to 2018 and correspond to an integrated luminosity of 136 fb-1. Higgs bosons decaying into bb¯ are reconstructed as single large-radius jets recoiling against a hadronic system and are identified by the experimental signature of two b-hadron decays. The experimental techniques are validated in the same kinematic regime using the Z→bb¯ process. The 95% confidence-level upper limit on the cross section for Higgs boson production with transverse momentum above 450 GeV is 115 fb, and above 1 TeV it is 9.6 fb. The Standard Model cross section predictions for a Higgs boson with a mass of 125 GeV in the same kinematic regions are 18.4 fb and 0.13 fb, respectively