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https://www.readbyqxmd.com/read/28817077/secure-localization-in-the-presence-of-colluders-in-wsns
#1
Wei Shi, Michel Barbeau, Jean-Pierre Corriveau, Joaquin Garcia-Alfaro, Meng Yao
We address the challenge of correctly estimating the position of wireless sensor network (WSN) nodes in the presence of malicious adversaries. We consider adversarial situations during the execution of node localization under three classes of colluding adversaries. We describe a decentralized algorithm that aims at determining the position of nodes in the presence of such colluders. Colluders are assumed to either forge or manipulate the information they exchange with the other nodes of the WSN. This algorithm allows location-unknown nodes to successfully detect adversaries within their communication range...
August 17, 2017: Sensors
https://www.readbyqxmd.com/read/28813428/soil-features-in-rookeries-of-antarctic-penguins-reveal-sea-to-land-biotransport-of-chemical-pollutants
#2
Anna C Santamans, Rafael Boluda, Antonio Picazo, Carlos Gil, Joaquín Ramos-Miras, Pablo Tejedo, Luis R Pertierra, Javier Benayas, Antonio Camacho
The main soil physical-chemical features, the concentrations of a set of pollutants, and the soil microbiota linked to penguin rookeries have been studied in 10 selected sites located at the South Shetland Islands and the Antarctic Peninsula (Maritime Antarctica). This study aims to test the hypothesis that biotransport by penguins increases the concentration of pollutants, especially heavy metals, in Antarctic soils, and alters its microbiota. Our results show that penguins do transport certain chemical elements and thus cause accumulation in land areas through their excreta...
2017: PloS One
https://www.readbyqxmd.com/read/28812460/myopathic-mtdna-depletion-syndrome-due-to-mutation-in-tk2-gene
#3
Elena Martín-Hernández, María Teresa García-Silva, Pilar Quijada-Fraile, María Elena Rodríguez-García, Henry Rivera, Aurelio Hernández-Laín, David Coca-Robinot, Joaquín Fernández-Toral, Joaquín Arenas, Miguel A Martín, Francisco Martínez-Azorín
Whole-exome sequencing was used to identify the disease gene(s) in a Spanish girl with failure to thrive, muscle weakness, mild facial weakness, elevated creatine kinase, deficiency of mitochondrial complex III and depletion of mtDNA. With whole-exome sequencing data, it was possible to get the whole mtDNA sequencing and discard any pathogenic variant in this genome. The analysis of whole exome uncovered a homozygous pathogenic mutation in thymidine kinase 2 gene ( TK2; NM_004614.4:c.323 C>T, p.T108M)...
September 2017: Pediatric and Developmental Pathology
https://www.readbyqxmd.com/read/28809785/path-planning-for-non-circular-non-holonomic-robots-in-highly-cluttered-environments
#4
Ricardo Samaniego, Joaquin Lopez, Fernando Vazquez
This paper presents an algorithm for finding a solution to the problem of planning a feasible path for a slender autonomous mobile robot in a large and cluttered environment. The presented approach is based on performing a graph search on a kinodynamic-feasible lattice state space of high resolution; however, the technique is applicable to many search algorithms. With the purpose of allowing the algorithm to consider paths that take the robot through narrow passes and close to obstacles, high resolutions are used for the lattice space and the control set...
August 15, 2017: Sensors
https://www.readbyqxmd.com/read/28807318/application-of-a-specific-quantitative-real-time-pcr-qpcr-to-identify-leishmania-infantum-dna-in-spleen-skin-and-hair-samples-of-wild-leporidae
#5
María Victoria Ortega, Inmaculada Moreno, Mercedes Domínguez, María Luisa de la Cruz, Ana Belén Martín, Antonio Rodríguez-Bertos, Raúl López, Alejandro Navarro, Sergio González, María Mazariegos, Joaquín Goyache, Lucas Domínguez, Nerea García
The aim of this study was to compare a quantitative real-time PCR (qPCR) validated for the detection of Leishmania infantum in dogs with a nested PCR but in wild Leporidae. Additionally, L. infantum results from indirect immunofluorescent antibody test (IFAT) and in vitro culture were also compared with qPCR. Different samples (spleen, skin and hair) recovered from 224 European rabbits and 70 Iberian hares from two green areas of Madrid Council were analysed for the detection of L. infantum. The presence of Leishmania kDNA was detected by qPCR in 58 out of 221 (26...
August 30, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28807111/prevalence-of-chronic-hepatitis-b-and-c-in-psoriasis-patients-a-cross-sectional-study-in-a-large-us-population
#6
Kelsey A Orrell, Paras P Vakharia, Erika L Hagstrom, Joaquin Brieva, Dennis P West, Beatrice Nardone
No abstract text is available yet for this article.
September 2017: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/28806126/development-and-validation-of-an-instrument-to-assess-the-impact-of-cyberbullying-the-cybervictimization-emotional-impact-scale
#7
Paz Elipe, Joaquín A Mora-Merchán, Lydia Nacimiento
Cyberbullying is a phenomenon with important adverse consequences on victims. The emotional impact of this phenomenon has been well established. However, there is to date no instrument with good psychometric properties tested to assess such impact. The objective of this study was developing and testing the psychometric properties of an instrument to assess the emotional impact of cyberbullying: the "Cybervictimization Emotional Impact Scale, CVEIS." The sample included 1,016 Compulsory Secondary Education students (52...
August 2017: Cyberpsychology, Behavior and Social Networking
https://www.readbyqxmd.com/read/28803768/assessment-of-preoperative-anxiety-in-cardiac-surgery-patients-lacking-a-history-of-anxiety-contributing-factors-and-postoperative-morbidity
#8
Joaquín Hernández-Palazón, Diego Fuentes-García, Luis Falcón-Araña, María José Roca-Calvo, Sebastián Burguillos-López, Paloma Doménech-Asensi, Rubén Jara-Rubio
OBJECTIVES: The aim of this study was to measure the level of preoperative anxiety in patients scheduled for cardiac surgery, identify any influencing clinical factors, and assess the relationship between anxiety and postoperative morbidity. DESIGN: A prospective and consecutive study. SETTING: A single university hospital. PARTICIPANTS: The study comprised 200 patients scheduled for cardiac surgery. INTERVENTIONS: Each patient was asked to grade his or her preoperative anxiety level using the Visual Analogue Scale for Anxiety, Amsterdam Preoperative Anxiety and Information Scale, and set of specific anxiety-related questions...
April 26, 2017: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/28803573/the-school-environment-and-sugar-sweetened-beverage-consumption-among-guatemalan-adolescents
#9
Katelyn M Godin, Violeta Chacón, Joaquin Barnoya, Scott T Leatherdale
OBJECTIVE: The current study sought to examine Guatemalan adolescents' consumption of sugar-sweetened beverages (SSB), identify which individual-level characteristics are associated with SSB consumption and describe school characteristics that may influence students' SSB consumption. DESIGN: Within this observational pilot study, a questionnaire was used to assess students' consumption of three varieties of SSB (soft drinks, energy drinks, sweetened coffees/teas), as well as a variety of sociodemographic and behavioural characteristics...
August 14, 2017: Public Health Nutrition
https://www.readbyqxmd.com/read/28803509/analytical-validation-and-reference-intervals-for-freezing-point-depression-osmometer-measurements-of-urine-osmolality-in-dogs
#10
Samantha Guerrero, Josep Pastor, Asta Tvarijonaviciute, José Joaquín Cerón, Graziano Balestra, Marco Caldin
Urine osmolality (UOsm) is considered the most accurate measure of urine concentration and is used to assess body fluid homeostasis and renal function. We performed analytical validation of freezing point depression measurement of canine UOsm, to establish reference intervals (RIs) and to determine the effect of age, sex, and reproductive status on UOsm in dogs. Clinically healthy dogs ( n = 1,991) were retrospectively selected and stratified in groups by age (young [0-12 mo], adults [13-84 mo], and seniors [>84 mo]), sex (females and males), and reproductive status (intact and neutered)...
August 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/28801153/trends-causes-and-timing-of-30-day-readmissions-after-hospitalization-for-heart-failure-11-year-population-based-analysis-with-linked-data
#11
Lucía Fernandez-Gasso, Lauro Hernando-Arizaleta, Joaquín A Palomar-Rodríguez, M Victoria Abellán-Pérez, Domingo A Pascual-Figal
BACKGROUND: Reliable data are necessary if the burden of early readmissions following hospitalization for heart failure (HF) is to be addressed. We studied unplanned 30-day readmissions, their causes and timing over an 11-year period, using population-based linked data. METHODS: All hospitalizations from 2003 to 2013 were analyzed by using administrative linked data based on the Minimum Basic Set discharge registry of the Department of Health (Region of Murcia, Spain)...
August 4, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28798235/atomic-resolution-map-of-the-interactions-between-an-amyloid-inhibitor-protein-and-amyloid-beta-a%C3%AE-peptides-in-the-monomer-and-protofibril-states
#12
Moustafa Algamal, Rashik Ahmed, Naeimeh Jafari, Bilal Ahsan, Joaquin Ortega, Giuseppe Melacini
Self-association of amyloid beta (Aβ) peptides is a hallmark of Alzheimer's disease and serves as a general prototype for amyloid formation. A key endogenous inhibitor of Aβ self-association is Human Serum Albumin (HSA), which binds ~90% of plasma Aβ. However, the exact molecular mechanism by which HSA binds Aβ monomers and protofibrils is not fully understood. Here, using dark-state exchange saturation transfer (DEST) NMR and relaxation experiments, complemented by morphological characterization, we mapped the HSA-Aβ interactions at atomic resolution by examining HSA's effects on Aβ monomers and soluble high-molecular weight oligomeric protofibrils...
August 10, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28798089/effect-of-continuous-positive-airway-pressure-on-blood-pressure-and-metabolic-profile-in-women-with-sleep-apnoea
#13
Francisco Campos-Rodriguez, Monica Gonzalez-Martinez, Angeles Sanchez-Armengol, Bernabe Jurado-Gamez, Jose Cordero-Guevara, Nuria Reyes-Nuñez, Maria F Troncoso, Araceli Abad-Fernandez, Joaquin Teran-Santos, Julian Caballero-Rodriguez, Mercedes Martin-Romero, Ana Encabo-Motiño, Lirios Sacristan-Bou, Javier Navarro-Esteva, Maria Somoza-Gonzalez, Juan F Masa, Maria A Sanchez-Quiroga, Beatriz Jara-Chinarro, Belen Orosa-Bertol, Miguel A Martinez-Garcia
Continuous positive airway pressure (CPAP) reduces blood pressure levels in hypertensive patients with obstructive sleep apnoea (OSA). However, the role of CPAP in blood pressure and the metabolic profile in women has not yet been assessed. In this study we investigated the effect of CPAP on blood pressure levels and the glucose and lipid profile in women with moderate-to-severe OSA.A multicentre, open-label, randomised controlled trial was conducted in 307 women diagnosed with moderate-to-severe OSA (apnoea-hypopnoea index ≥15 events·h(-1)) in 19 Spanish Sleep Units...
August 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28797445/characteristics-and-long-term-outcomes-of-head-and-neck-squamous-cell-carcinoma-after-solid-organ-transplantation
#14
Samer Alsidawi, Katharine A Price, Ashish V Chintakuntlawar, Gustavo F Westin, Joaquin J Garcia, Daniel J Ma, Scott H Okuno
INTRODUCTION: Immunosuppression after solid organ transplant prevents graft rejection, but leads to increased incidence of various malignancies including head and neck squamous cell carcinoma (HNSCC). Outcomes of patients with post-transplant HNSCC are unknown. MATERIALS AND METHODS: We retrospectively identified patients who developed HNSCC after solid organ transplant between 1995 and 2010. Adults with pathology-proven HNSCC and adequate follow up were included...
September 2017: Oral Oncology
https://www.readbyqxmd.com/read/28797087/a-comparison-of-monte-carlo-based-bayesian-parameter-estimation-methods-for-stochastic-models-of-genetic-networks
#15
Inés P Mariño, Alexey Zaikin, Joaquín Míguez
We compare three state-of-the-art Bayesian inference methods for the estimation of the unknown parameters in a stochastic model of a genetic network. In particular, we introduce a stochastic version of the paradigmatic synthetic multicellular clock model proposed by Ullner et al., 2007. By introducing dynamical noise in the model and assuming that the partial observations of the system are contaminated by additive noise, we enable a principled mechanism to represent experimental uncertainties in the synthesis of the multicellular system and pave the way for the design of probabilistic methods for the estimation of any unknowns in the model...
2017: PloS One
https://www.readbyqxmd.com/read/28796806/an-analysis-of-the-influence-of-deep-neural-network-dnn-topology-in-bottleneck-feature-based-language-recognition
#16
Alicia Lozano-Diez, Ruben Zazo, Doroteo T Toledano, Joaquin Gonzalez-Rodriguez
Language recognition systems based on bottleneck features have recently become the state-of-the-art in this research field, showing its success in the last Language Recognition Evaluation (LRE 2015) organized by NIST (U.S. National Institute of Standards and Technology). This type of system is based on a deep neural network (DNN) trained to discriminate between phonetic units, i.e. trained for the task of automatic speech recognition (ASR). This DNN aims to compress information in one of its layers, known as bottleneck (BN) layer, which is used to obtain a new frame representation of the audio signal...
2017: PloS One
https://www.readbyqxmd.com/read/28795879/influence-of-different-attentional-focus-on-emg-amplitude-and-contraction-duration-during-the-bench-press-at-different-speeds
#17
Joaquin Calatayud, Jonas Vinstrup, Markus D Jakobsen, Emil Sundstrup, Juan Carlos Colado, Lars L Andersen
The purpose of this study was to investigate whether using different focus affects electromyographic (EMG) amplitude and contraction duration during bench press performed at explosive and controlled speeds. Eighteen young male individuals were familiarized with the procedure and performed the one-maximum repetition (1RM) test in the first session. In the second session, participants performed the bench press exercise at 50% of the 1RM with 3 different attentional focuses (regular focus on moving the load vs contracting the pectoralis vs contracting the triceps) at 2 speed conditions (controlled vs maximal speed)...
August 10, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/28795721/a-cd-ii-based-mof-as-a-photosensitive-schottky-diode-experimental-and-theoretical-studies
#18
Shibashis Halder, Arka Dey, Aradhita Bhattacharjee, Joaquín Ortega-Castro, Antonio Frontera, Partha Pratim Ray, Partha Roy
A Cd(ii) based 2D metal-organic framework (MOF), [Cd(4-bpd)(SCN)2]n (1) where 4-bpd = 1,4-bis(4-pyridyl)-2,3-diaza-1,3-butadiene, has been synthesized and characterized by standard methods including single crystal X-ray diffraction analysis. When it is sandwiched between ITO coated glass and Al, 1 shows interesting conduction properties. The I-V characteristics of the ITO/1/Al configuration measured in the dark and under illumination of incident light exhibit a highly non-linear rectifying behavior, which signifies its Schottky diode character...
August 10, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28791443/outcomes-of-shoulder-arthroplasty-in-haematopoietic-stem-cell-transplant-patients
#19
Joseph M Statz, Brian P Chalmers, Cameron K Ledford, Joaquin Sanchez-Sotelo, John W Sperling, Mark E Morrey
BACKGROUND: With the growing population of patients undergoing haematopoietic stem cell transplants (HSCTs), the demand for shoulder arthroplasty (SA) in this population can be expected to increase. No studies in the literature have examined the outcomes of SA in HSCT patients. PATIENTS AND METHODS: A retrospective review of 11 SAs in 10 patients with previous HSCT was performed. We characterized the clinical outcomes, survivorship, and peri-operative complication rates in patients who underwent SA after receiving a HSCT...
August 9, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28789915/association-of-general-and-abdominal-obesity-with-hypertension-dyslipidemia-and-prediabetes-in-the-predaps-study
#20
F Javier Sangrós, Jesús Torrecilla, Carolina Giráldez-García, Lourdes Carrillo, José Mancera, Teresa Mur, Josep Franch, Javier Díez, Albert Goday, Rosario Serrano, F Javier García-Soidán, Gabriel Cuatrecasas, Dimas Igual, Ana Moreno, J Manuel Millaruelo, Francisco Carramiñana, Manuel Antonio Ruiz, Francisco Carlos Pérez, Yon Iriarte, Ángela Lorenzo, María González, Beatriz Álvarez, Lourdes Barutell, M Soledad Mayayo, Mercedes Del Castillo, Emma Navarro, Fernando Malo, Ainhoa Cambra, Riánsares López, M Ángel Gutiérrez, Luisa Gutiérrez, Carmen Boente, J Javier Mediavilla, Luis Prieto, Luis Mendo, M José Mansilla, Francisco Javier Ortega, Antonia Borras, L Gabriel Sánchez, J Carlos Obaya, Margarita Alonso, Francisco García, Ángela Trinidad Gutiérrez, Ana M Hernández, Dulce Suárez, J Carlos Álvarez, Isabel Sáenz, F Javier Martínez, Ana Casorrán, Jazmín Ripoll, Alejandro Salanova, M Teresa Marín, Félix Gutiérrez, Jaime Innerárity, M Del Mar Álvarez, Sara Artola, M Jesús Bedoya, Santiago Poveda, Fernando Álvarez, M Jesús Brito, Rosario Iglesias, Francisca Paniagua, Pedro Nogales, Ángel Gómez, José Félix Rubio, M Carmen Durán, Julio Sagredo, M Teresa Gijón, M Ángeles Rollán, Pedro P Pérez, Javier Gamarra, Francisco Carbonell, Luis García-Giralda, J Joaquín Antón, Manuel de la Flor, Rosario Martínez, José Luis Pardo, Antonio Ruiz, Raquel Plana, Ramón Macía, Mercè Villaró, Carmen Babace, José Luis Torres, Concepción Blanco, Ángeles Jurado, José Luis Martín, Jorge Navarro, Gloria Sanz, Rafael Colas, Blanca Cordero, Cristina de Castro, Mercedes Ibáñez, Alicia Monzón, Nuria Porta, María Del Carmen Gómez, Rafael Llanes, J José Rodríguez, Esteban Granero, Manuel Sánchez, Juan Martínez, Patxi Ezkurra, Luis Ávila, Carlos de la Sen, Antonio Rodríguez, Pilar Buil, Paula Gabriel, Pilar Roura, Eduard Tarragó, Xavier Mundet, Remei Bosch, J Carles González, M Isabel Bobé, Manel Mata, Irene Ruiz, Flora López, Marti Birules, Oriol Armengol, Rosa Mar de Miguel, Laura Romera, Belén Benito, Neus Piulats, Beatriz Bilbeny, J José Cabré, Xavier Cos, Ramón Pujol, Mateu Seguí, Carmen Losada, A María de Santiago, Pedro Muñoz, Enrique Regidor
INTRODUCTION AND OBJECTIVES: Some anthropometric measurements show a greater capacity than others to identify the presence of cardiovascular risk factors. This study estimated the magnitude of the association of different anthropometric indicators of obesity with hypertension, dyslipidemia, and prediabetes (altered fasting plasma glucose and/or glycosylated hemoglobin). METHODS: Cross-sectional analysis of information collected from 2022 participants in the PREDAPS study (baseline phase)...
August 5, 2017: Revista Española de Cardiología
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