Rodrigo Fortes‐Silva, Francisco Javier Sánchez Martínez, Morris Villarroel, Francisco Javier Sánchez‐Vázquez,
... for more papers by this authorMorris Villarroel, Morris Villarroel Department of Animal Production, ETSI Agronomy, Polytechnic University of Madrid, Madrid, SpainSearch for more papers by this authorFrancisco J Sánchez-Vázquez, Francisco J Sánchez-Vázquez Department of Physiology, Faculty of ... for more papers by this authorMorris Villarroel, Morris Villarroel Department of Animal Production, ETSI Agronomy, Polytechnic University of Madrid, Madrid, SpainSearch for more papers by this authorFrancisco J Sánchez-Vázquez, Francisco J Sánchez-Vázquez Department of Physiology, Faculty of ...
Tópico(s): Fish biology, ecology, and behavior
2010 - Wiley | Aquaculture Research
Francisco J. Ossandon, Cynthia Villarroel, Francisco Aguayo, Eudocia Santibáñez, Naohide Oue, Wataru Yasui, Alejandro H. Corvalán,
Abstract Worldwide gastric carcinoma has marked geographical variations and worse outcome in patients from the West compared to the East. Although these differences has been explained by better diagnostic criteria, improved staging methods and more radical surgery, emerging evidence supports the concept that gene expression differences associated to ethnicity might contribute to this disparate outcome. Here, we collected datasets from 4 normal and 11 gastric carcinoma Serial Gene Expression Analysis ( ...
Tópico(s): Gastric Cancer Management and Outcomes
2008 - BioMed Central | Molecular Cancer
Rodrigo Fortes‐Silva, Francisco Javier Sánchez Martínez, Morris Villarroel, Francisco Javier Sánchez‐Vázquez,
Fish do not feed at any time of the day and on whatever food item they encounter in the wild, but they show daily rhythms of feeding activity and dietary selection. The aim of this research was to investigate the daily rhythms of behavior in Nile tilapia self-fed with plant-based diets supplemented with different levels of exogenous phytase (an enzyme that hydrolyzes non-digestible phytate and improves the nutritional value of the diet). To this end, ten males were individually kept in 50-L tanks, ...
Tópico(s): Reproductive biology and impacts on aquatic species
2010 - Elsevier BV | Comparative Biochemistry and Physiology Part A Molecular & Integrative Physiology
Produção Nacional
Revisado por pares
Héctor Cornide-Reyes, Fabián Riquelme, Diego Monsalves, René Noël, Cristian Cechinel, Rodolfo Villarroel, Francisco Ponce, Roberto Muñoz,
While technology has helped improve process efficiency in several domains, it still has an outstanding debt to education. In this article, we introduce NAIRA, a Multimodal Learning Analytics platform that provides Real-Time Feedback to foster collaborative learning activities’ efficiency. NAIRA provides real-time visualizations for students’ verbal interactions when working in groups, allowing teachers to perform precise interventions to ensure learning activities’ correct execution. We present ...
Tópico(s): Online Learning and Analytics
2020 - Multidisciplinary Digital Publishing Institute | Sensors
Patricio Navarro, Cristián Vargas, Alfredo Villarroel, Francisco José Alguacil,
Tópico(s): Extraction and Separation Processes
2002 - Elsevier BV | Hydrometallurgy
Giovanni Luca Cascio Rizzo, Francisco Villarroel Ordenes, Rumen Pozharliev, Matteo De Angelis, Michele Costabile,
Influencer marketing is a popular strategy to connect with consumers. However, influencers’ use of overly high-arousal language in promoting products (e.g., “it's totally AMAZING!”) has raised questions about their true motivations. This article investigates how high-arousal language in micro- versus macro-influencers’ sponsored posts might shape engagement. A multimethod approach, combining automated text, image, video, and audio analyses of thousands of Instagram and TikTok posts with controlled ...
Tópico(s): Digital Marketing and Social Media
2023 - SAGE Publishing | Journal of Marketing
Produção Nacional
Revisado por pares
Kaiz Asif, Fadar Oliver Otite, Shashvat M. Desai, Nabeel Herial, Violiza Inoa, Fawaz Al‐Mufti, Ashutosh P. Jadhav, Adam A. Dmytriw, Alicia C. Castonguay, Priyank Khandelwal, Jennifer Potter‐Vig, Viktor Szeder, Tanzila Kulman, Victor Urrutia, Hesham Masoud, Gábor Tóth, Kaustubh Limaye, Sushanth Aroor, Waleed Brinjikji, Ansaar Rai, Jeyaraj Pandian, Mehari Gebreyohanns, Thomas Leung, Malek Mansour, Andrew M. Demchuk, Vikram Huded, Sheila Cristina Ouriques Martins, Osama O. Zaidat, Xiaochuan Huo, Bruce Campbell, PN Sylaja, Zhongrong Miao, Jeffrey L. Saver, Santiago Ortega‐Gutiérrez, Dileep R. Yavagal, Juan Cirio, Pedro Lylyk, Ángel Ferrario, Luis Lemme Plaghos, José Luis ́Blas Arroyo, Bernard Yan, Ronil V. Chandra, Wael Hamed Ibrahim, Firas Alnidawi, Sirajee Shafiqul Islam, Mohammad Shahidullah, Víctor Villarroel Saavedra, Francisco Josà Mont’ Alverne, Pedro Magalhães, Gisele Sampaio Silva, Stanimir Sirakov, Rosen Kalpachki, Nurfet Alioski, Eric Gueumekane bila lamou, Jai Shankar, Grant Stotts, Daidre Rowe, Francene Gayle, Romnesh de Souza, Cristina Ramos, Amaury GarcÃa, Amza Ali, Sherry Sandy, Pablo M. Lavados, Rodrigo Rivera, Tony Fabian Alvarez Guzman, Alejandro Villarraga, Carolina Estrada, B Pabón, Antonı́n Krajina, Aleš Tomek, Philip Adebayo, GERMAN ABDO, Nelson Maldonado S, Farouk Hassan, Eman M. Khedr, Mirza Khinikadze, Zurab Nadareishvili, Alexander Tsiskaridze, Νikolaos Syrmos, Panayiotis Mitsias, Biplab Das, Jayanta Roy, Vivek Gupta, Vipul Gupta, Dheeraj Khurana, Anil Karapurkar, M.V.Padma Stivastava, Anand Alurkar, Arvind Sharma, Satish Lahoti, Rahul Kumar, Gigy Kuruttukulam, Achmad Firdaus Sani, Ita Muharram Sari, Mustafa Khassaf, Temeem Majid Nassir, Nobuyuki Sakai, Hiroshi Yamagami, Haitham Dababneh, Farid A. Aladham, Mynzhylky Berdikhojayev, Sabina Medukhanova, Raghid Kikano, Ali Alaraj, Rechdi Ahdab, Wan Asyraf Wan Zaidi, Khairul Azmi Abd Kadir, Antonio Araúz, Fernando Gongora, Ariunaa Jambaldorj, Ganbaatar XXX, Zarni Myint Shwe, Win Min Thit, Annemarei Ranta, Teddy Y. Wu, ERWIN E. RAYO, Mayowa Owolabi, Akintomiwa Makanjuola, Saima Ahmad, Mohammad Wasay, Umair Rashid, Ricardo Mernes, Osvaldo Paniagua, MARLA GALLO, Manuel Moquillaza, Maria Epifania Collantes, Manuel Mariano, Adam Kobayashi, Rafael Rodríguez‐Mercado, Rodolfo Alcedo Guardia, Yahia Imam, Ayman Z. Ahmed, Adel Alhazzani, Hosam Al-Jehani, Wickly Lee, Kamil Zeleňák, Andrej Klepanec, Georgi Krastev, Senta Frol, Naeem Brey, Anastasia Rossouw, Prasad De Silva, Harsha Gunasekera, Udaya K. Ranawaka, Haytham Osman, Sarah El-Sadig, Nijasri C. Suwanwela, Wasan Akarathanawat, Jarturon Tantivatana, Nadia Hammami, Samia Ben Sassi, Atilla Özcan Özdemi̇r, Semih Giray, Dmytro Lebedynets, Stanislav Konotopchik, Seby John, Syed Hussain, Robin Novakovic-White, Atilla Özcan Özdemi̇r, Semih Giray, Gillian L Gordon Perue, Ryna Then, Claudio Berrutti, Roberto Crosa, Huy Thang Nguyen, Huynh Vu Le, Tran thanh vu,
Despite the well-established potent benefit of mechanical thrombectomy (MT) for large vessel occlusion (LVO) stroke, access to MT has not been studied globally. We conducted a worldwide survey of countries on 6 continents to define MT access (MTA), the disparities in MTA, and its determinants on a global scale.Our survey was conducted in 75 countries through the Mission Thrombectomy 2020+ global network between November 22, 2020, and February 28, 2021. The primary end points were the current annual ...
Tópico(s): Venous Thromboembolism Diagnosis and Management
2023 - Lippincott Williams & Wilkins | Circulation
Dennis Herhausen, Lauren Grewal, Krista Hill Cummings, Anne L. Roggeveen, Francisco Villarroel Ordenes, Dhruv Grewal,
To date, the literature offers multiple suggestions for how to recover from service failures, albeit without explicitly addressing customers’ negative, high-arousal states evoked by the failure. The few studies that do address ways to improve negative emotions after failures focus on face-to-face interactions only. Because many customers today prefer to complain on social media, firms must learn how to effectively de-escalate negative, high-arousal emotions through text-based exchanges to achieve ...
Tópico(s): Mental Health via Writing
2022 - SAGE Publishing | Journal of Marketing
Dhruv Grewal, Dennis Herhausen, Stephan Ludwig, Francisco Villarroel Ordenes,
Digital communication, the electronic transmission of information, reflects and influences consumers’ perceptions, attitudes, behaviors, and shopping journeys. Thus, data stemming from digital communication is an important source of insights for retailers, manufacturers, and service firms alike. This article discusses emerging trends and recent advances in digital communication research, as well as its future opportunities for retail practice and research. The authors outline four consumer–retailer ...
Tópico(s): Digital Communication and Language
2021 - Elsevier BV | Journal of Retailing
Francisco Villarroel Ordenes, Rosaria Silipo,
Machine learning (ML) promises great value for marketing related applications. However, the proliferation of data types, methods, tools, and programing languages hampers knowledge integration amongst marketing analytics teams, making collaboration difficult. Visual-based programing might help by facilitating the orchestration of ML projects in a more intuitive visual fashion. This article introduces the KNIME Analytics Platform, a leading visual-based programing software, and its potential for implementing ...
Tópico(s): Digital Marketing and Social Media
2021 - Elsevier BV | Journal of Business Research
Amin Nazifi, Holger Roschk, Francisco Villarroel Ordenes, Ben Marder,
Intentional service failures (e.g., overbooking or overcharging) have received little scholarly attention, despite their regular occurrence and immense costs. Using a multi-method approach combining experimental and field data from online reviews, it was found that intentional (vs. unintentional) failures lead to greater negative word of mouth (nWOM) and patronage reduction. This research extends these findings by demonstrating that intentional failures are less harmful when the failure is reversible ( ...
Tópico(s): Emotional Labor in Professions
2021 - SAGE Publishing | Journal of Travel Research
Maria Holmlund, Yves Van Vaerenbergh, Robert Ciuchita, Annika Ravald, Panagiotis Sarantopoulos, Francisco Villarroel Ordenes, Mohamed Zaki,
Customer experience (CX) has emerged as a sustainable source of competitive differentiation. Recent developments in big data analytics (BDA) have exposed possibilities to unlock customer insights for customer experience management (CXM). Research at the intersection of these two fields is scarce and there is a need for conceptual work that (1) provides an overview of opportunities to use BDA for CXM and (2) guides management practice and future research. The purpose of this paper is therefore to develop ...
Tópico(s): Consumer Behavior in Brand Consumption and Identification
2020 - Elsevier BV | Journal of Business Research
George R. Milne, Francisco Villarroel Ordenes, Begum Kaplan,
As consumers are moving away from mindless consumerism, a mindful consumption literature has emerged that is based on Buddhist and psychological perspectives of mindfulness. While the idea of mindful consumption has great potential, there is little empirical research to date that comprehensively examines the consumer perspective on the role of mindfulness on consumption. To provide a grounded consumer perspective, the authors segment mindful consumption views from open-end text using a mixed method ...
Tópico(s): Consumer Behavior in Brand Consumption and Identification
2019 - SAGE Publishing | Australasian Marketing Journal (AMJ)
Francisco Villarroel Ordenes, Shunyuan Zhang,
Purpose The purpose of this paper is to describe and position the state-of-the-art of text and image mining methods in business research. By providing a detailed conceptual and technical review of both methods, it aims to increase their utilization in service research. Design/methodology/approach On a first stage, the authors review business literature in marketing, operations and management concerning the use of text and image mining methods. On a second stage, the authors identify and analyze ...
Tópico(s): Consumer Behavior in Brand Consumption and Identification
2019 - Emerald Publishing Limited | Journal of service management
Stefania Farace, Anne L. Roggeveen, Francisco Villarroel Ordenes, Ko de Ruyter, Martin Wetzels, Dhruv Grewal,
This article contributes to research on advertising effectiveness by investigating the combined influence of ad headlines and visual patterns in the ad on consumer product evaluations. Headlines can convey motion (e.g., “move,” “quick”); when the associated ad features a regular visual pattern, it evokes stronger product evaluations than if it depicts an irregular visual pattern. Thus, the way the advertised products are aligned visually represents critical decisions for ad designers. As Study 1 reveals, ...
Tópico(s): Media Influence and Health
2019 - Taylor & Francis | Journal of Advertising
Francisco Villarroel Ordenes, Dhruv Grewal, Stephan Ludwig, Ko de Ruyter, Dominik Mahr, Martin Wetzels,
Consumer-to-consumer brand message sharing is pivotal for effective social media marketing. Even as companies join social media conversations and generate millions of brand messages, it remains unclear what, how, and when brand messages stand out and prompt sharing by consumers. With a conceptual extension of speech act theory, this study offers a granular assessment of brands’ message intentions (i.e., assertive, expressive, or directive) and the effects on consumer sharing. A text mining study ...
Tópico(s): Consumer Behavior in Brand Consumption and Identification
2018 - Oxford University Press | Journal of Consumer Research
Francisco Villarroel Ordenes, Stephan Ludwig, Ko de Ruyter, Dhruv Grewal, Martin Wetzels,
Abstract Deciphering consumers’ sentiment expressions from big data (e.g., online reviews) has become a managerial priority to monitor product and service evaluations. However, sentiment analysis, the process of automatically distilling sentiment from text, provides little insight regarding the language granularities beyond the use of positive and negative words. Drawing on speech act theory, this study provides a fine-grained analysis of the implicit and explicit language used by consumers to express ...
Tópico(s): Digital Communication and Language
2017 - Oxford University Press | Journal of Consumer Research
Werner H. Kunz, Lerzan Aksoy, Yakov Bart, Kristina Heinonen, Sertan Kabadayi, Francisco Villarroel Ordenes, Μαριάννα Σιγάλα, David Díaz, Babis Theodoulidis,
Purpose This paper aims to propose that the literature on customer engagement has emphasized the benefits of customer engagement to the firm and, to a large extent, ignored the customers’ perspective. By drawing upon co-creation and other literature, this paper attempts to alleviate this gap by proposing a strategic framework that aligns both the customer and firm perspectives in successfully creating engagement that generates value for both the customer and the bottom line. Design/methodology/approach ...
Tópico(s): Service and Product Innovation
2017 - Emerald Publishing Limited | Journal of Services Marketing
Gonzalo Latorre, Pablo Besa, Carmen G. Parodi, Verónica Ferrer, Lorena Azócar, Marife Quirola, Luis Villarroel, Juan Francisco Miquel, Eduardo Agosín, José Chianale,
<b><i>Background and Study Aims:</i></b> Lactase non-persistence (LNP), or primary hypolactasia, is a genetic condition that mediates lactose malabsorption and can cause lactose intolerance. Here we report the prevalence of lactose intolerance in a double-blind placebo study. <b><i>Methods:</i></b> The LCT C>T<sub>-13910</sub> variant was genotyped by RT-PCR in 121 volunteers and lactose malabsorption was assessed using the hydrogen breath ...
Tópico(s): Digestive system and related health
2014 - Karger Publishers | Digestion
M Cuchacovich, Federica Solanes, Gonzalo Díaz, Tomás Cermenati, Samuel Avila, Juan Verdaguer, Juan Ignacio Verdaguer, Cristián Carpentier, Juan Stopel, Basilio Rojas, Traipe Leonidas, Patricia Gallardo, Francisca Sabugo, Mario Zanoli, Guillermo Merino, Francisco Villarroel,
Purpose: To prospectively compare 2 immunosupressive regimens in patients with active Vogt-Koyanagi-Harada disease in spite of systemic glucocorticoid treatment.Methods: Forty-four patients were diagnosed between 1998 and 2005. Twenty-one developed chronic intraocular inflammation in spite of glucocorticoid treatment and were randomized to receive either prednisone and azathioprine (AZA) (n = 12) or prednisone and cyclosporine (CyA) (n = 9).Results: In the AZA group Tyndall score decreased from 1.21 ± 1.10 ...
Tópico(s): Ocular Infections and Treatments
2010 - Taylor & Francis | Ocular Immunology and Inflammation
Luis Vargas‐Chacoff, África Calvo, Ignacio Ruíz-Jarabo, Francisco Villarroel, J.L.P. Muñoz, Ana B. Tinoco, S. Cárdenas, Juan Miguel Mancera,
The effects of two different environmental salinities [brackish water (BW), 12‰; sea water (SW), 39‰] and initial stock densities [low (LD), 1.0 g L−1; high (HD), 2.0 g L−1] on growth, osmoregulation, stress and energy metabolism of the fry Pagrus pagrus were investigated over a period of 45 days. Pagrus pagrus (n=80, 5.51 ± 0.25 g mean initial body weight) were randomly divided in eight groups. Growth, weight gain and specific growth rate increased in BW-acclimated fish compared with SW-acclimated fish. ...
Tópico(s): Aquaculture disease management and microbiota
2010 - Wiley | Aquaculture Research
Francisco Villarroel Ordenes, Babis Theodoulidis, Jamie Burton, Thorsten Gruber, Mohamed Zaki,
Complexity surrounding the holistic nature of customer experience has made measuring customer perceptions of interactive service experiences challenging. At the same time, advances in technology and changes in methods for collecting explicit customer feedback are generating increasing volumes of unstructured textual data, making it difficult for managers to analyze and interpret this information. Consequently, text mining, a method enabling automatic extraction of information from textual data, ...
Tópico(s): Digital Marketing and Social Media
2014 - SAGE Publishing | Journal of Service Research
Cristina Martínez Conesa, Cristina Fernández, Juan González del Castillo, Juan Jorge González-Armengol, Pedro Villarroel, Francisco Javier Martín‐Sánchez,
Fundamento.Desarrollar un modelo de predicción de ingreso hospitalario a la llegada del paciente al servicio de Urgencias, con el fin de conocer la necesidad de camas hospitalarias casi a tiempo real, y así prever los recursos asistenciales necesarios de forma precoz. Material y métodos.Estudio observacional de cohorte prospectivo.Se incluyeron todos los pacientes consecutivos filiados para el triaje entre las 8-22 horas del servicio de Urgencias de un hospital terciario durante un mes.Se analizaron ...
Tópico(s): Emergency and Acute Care Studies
2012 - Gobierno de Navarra | Anales del Sistema Sanitario de Navarra
Giovanni Luca Cascio Rizzo, Jonah Berger, Francisco Villarroel Ordenes,
In the midst of the influencer marketing boom, more and more companies are shifting resources from real to virtual (or computer-generated) influencers. But while virtual influencers have the potential to engage consumers and drive action, some posts resonate and boost sales, while others do not. What makes some virtual influencer posts more impactful? This work examines how including someone else in photos shapes consumer responses to virtual influencers' posts. A multimethod investigation, combining ...
Tópico(s): Knowledge Management and Sharing
2023 - RELX Group (Netherlands) | SSRN Electronic Journal
Pamela Wurmann, Gonzalo Díaz, Francisca Sabugo, Lilian Soto, Federica Solanes, Sandra del Pino, Guillermo Merino, Juan Ignacio Verdaguer, Francisco Villarroel, M Cuchacovich,
Retrospective review of 44 Chilean patients with Behçet diseaseBackground: Behçet's disease (BD) is a rare multisystemic inflammatory disease that is potentially disabling and may cause death.Aim: To describe the characteristics of BD patients from two Chilean centers.Patients and method: Retrospective review of the clinical records of patients with BD attended in two rheumatology services between 1985 and 2007.The "Behçet's Disease Research Committee of Japan" (BDCJ) and the "International Study Group ...
Tópico(s): Retinal and Optic Conditions
2009 - Q16635223 | Revista médica de Chile
Andrés Martínez-Fernández, Valentín Villarroel, Joaquín Seoane, Francisco del Pozo,
This article presents three studies dealing with information and communication needs in rural primary health care from Peru and Nicaragua. Results show that primary health-care systems in rural areas of developing countries are very inefficient. Among the main reasons we found factors related to communication infrastructure, information sharing, and continuous training of health professionals. We conclude that telemedicine systems can improve this situation, but the lack of infrastructures, low ...
Tópico(s): Telemedicine and Telehealth Implementation
2005 - Institute of Electrical and Electronics Engineers | IEEE Transactions on Information Technology in Biomedicine
Andrés Martínez-Fernández, Valentín Villarroel, Joaquín Seoane, Francisco del Pozo,
Voice and data communication facilities (email via VHF radio) were installed in 39 previously isolated health facilities in the province of Alto Amazonas in Peru. A baseline study was carried out in January 2001 and a follow-up evaluation in May 2002, after nine months of operation. We measured the reliability of the technology and the effect the system had on staff access to medical training and information. We also measured the indirect effects on the general population of access to better health- ...
Tópico(s): Primary Care and Health Outcomes
2004 - SAGE Publishing | Journal of Telemedicine and Telecare
Andrés Martínez-Fernández, Valentín Villarroel, Joaquín Seoane, Francisco del Pozo,
The Biomedical Engineering and Telemedicine Group of the Technical University of Madrid and the nongovernmental organization engineering without frontiers are leading the "Hispano-American Health Link" program, to develop low-cost telecommunication systems and information services specially designed for rural primary healthcare personnel from isolated areas in developing countries. The EHAS program has five lines of action: 1) research on the communication and information needs of rural health personnel ...
Tópico(s): Healthcare Systems and Technology
2004 - Institute of Electrical and Electronics Engineers | IEEE Technology and Society Magazine
Carolina Bernal-Morales, Francisco Aguayo, Cynthia Villarroel, Macarena Vargas, Ignacio Díaz, Francisco J. Ossandon, Eudocia Santibáñez, Mariana Palma, Edmundo Aravena, Carlos Barrientos, Alejandro H. Corvalán,
Abstract Purpose: Gastric cancer is a curable disease if diagnosed at early stage. However, most cases are diagnosed at advanced stage because of the lack of screening programs. Therefore, the identification of plasma biomarkers for early detection is necessary. Experimental Design: To search for these biomarkers, we evaluated the DNA methylation patterns of 24 genes by Methylation-specific PCR in primary tissues from 32 retrospectively collected gastric cancer cases (testing group). Correlation ...
Tópico(s): RNA modifications and cancer
2008 - American Association for Cancer Research | Clinical Cancer Research
Diego F. Dávila, José H. Donis, Gabriela Arata de Bellabarba, Vanesa Villarroel, Francisco Sánchez, Lisbeth Berrueta, Siham Salmen, Barbara Das Neves,
Primary abnormalities of the autonomic nervous system had been postulated as the pathogenic mechanisms of myocardial damage, in patients with Chagas disease. However, recent investigations indicate that these abnormalities are secondary and amenable to treatment with beta-adrenergic blockers. Moreover, muscarinic cardiac autoantibodies appear to enhance parasympathetic activity on the sinus node. Therefore, the purpose of this paper is to analyze how knowledge on Chagas' disease evolved from being ...
Tópico(s): Cardiomyopathy and Myosin Studies
2012 - Hindawi Publishing Corporation | Interdisciplinary Perspectives on Infectious Diseases