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2. Prevalence rates of chronic kidney disease and its association with cardiometabolic factors and cardiovascular diseases. SIMETAP-CKD study

Author

Antonio, Ruiz-Garcia, Ezequiel, Arranz-Martínez, Nerea, Iturmendi-Martínez, Teresa, Fernández-Vicente, Montserrat, Rivera-Teijido, and Juan Carlos, García-Álvarez

Subjects
General Engineering, General Earth and Planetary Sciences, General Environmental Science
Abstract

Chronic kidney disease (CKD) is a major health problem that contributes to the development of cardiovascular disorders such as heart failure and arteriosclerotic cardiovascular disease (ACVD). The aims of this study were to determine the prevalence of CKD and to assess its association with ACVD and cardiometabolic risk factors.Cross-sectional observational study conducted in primary care setting. Population-based random sample: 6,588 people between 18 and 102 years old (response rate: 66%). Crude and sex- and age-adjusted prevalence rates of CKD according to KDIGO were determined by assessing albuminuria and estimated glomerular filtration rate according to CKD-EPI, and their associations with cardiometabolic factors and ACVD were determined.The crude prevalence of CKD was 11.48% (95%CI: 10.72-12.27%), without significant difference between men (11.64% [95%CI: 10.49-12.86%]) and women (11.35% [95%CI: 10.34-12.41%]). The age- and sex-adjusted prevalence rate of CKD was 9.16% (men: 8.61%; women: 9.69%). The prevalence of low estimated glomerular filtration rate (60mL/min/1.73mThe adjusted prevalence of CKD was 9.2% (low estimated glomerular filtration rate: 8.0%; albuminuria: 6.0%). Most of the patients with CKD had very high cardiovascular risk. Hypertension, diabetes, prediabetes, increased waist-to-height ratio and ACVD were independently associated with CKD.

Published
2023
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4. Trichoptera and Plecoptera of the Seybouse River, northeast Algeria: Distribution, phenology and new records

Author

Hamed A. El-Serehy, Boudjéma Samraoui, Antonio Ruiz Garcia, Zineb Bouhala, Farrah Samraoui, Joaquín Márquez-Rodríguez, and Manuel Ferreras-Romero

Subjects
Insecta, Phenology, Ecology, Biodiversity, STREAMS, Biology, biology.organism_classification, Taxon, Rivers, Lobata, Algeria, Threatened species, Animals, Animal Science and Zoology, Holometabola, Ecology, Evolution, Behavior and Systematics, Invertebrate, Hydropsychidae
Abstract

The stoneflies and caddisflies of North Africa are still poorly known as vast areas of Algeria have yet to be investigated. A survey of the macroinvertebrates of the Seybouse River, northeast Algeria, was carried out from July 2014 to December 2016. Three species of stoneflies (Capnopsis schilleri, Capnioneura petitpierreae, and Tyrrhenoleuctra tangerina) and five taxa of caddisflies (Mesophylax aspersus, Hydropsyche maroccana, H. resmineda, H. artax/lobata, and H. gr. pellucidula) were identified. All taxa are new records to the Seybouse River and seven of them are new to northeastern Algeria. A multivariate analysis indicated that the Hydropsychidae exhibited a clear longitudinal gradient along the Seybouse River while Mesophylax aspersus seemed adapted to species-poor, intermittent streams. Further investigations of the stoneflies and caddisflies may inform conservation efforts and will prove useful to monitor the Seybouse River and similarly threatened North African rivers and streams.

Published
2020
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5. Revision of European Wormaldia species (Trichoptera, Philopotamidae): Chimeric taxa of integrative organisation

Author

Antonio Ruiz Garcia, Gennaro Coppa, Kjell Arne Johanson, Stoyan Beshkov, János Oláh, and Trond Andersen

Subjects
wormaldia, new species, biology, Biodiversity, Zoology, taxonomic incongruence, biology.organism_classification, Philopotamidae, Taxon, Caddisfly, Genus, lcsh:QH540-549.5, lcsh:Zoology, speciation trait, chimeric taxa, lcsh:Ecology, lcsh:QL1-991, Speciation trait, taxonomic incongruence, chimeric taxa, Wormaldia, new species, Biological sciences
Abstract

We have recognised significant incongruences among the most commonly used taxonomic characters in the European species of Wormaldia genus of the Philopotamidae caddisfly family. During taxonomical analysis and ranking procedures we have recorded incongruent, discorcordant characters also in the taxa in Rhyacophilidae, Hydropsychidae and Limnephilidae caddisfly families. Based on theoretical background we concluded that taxa of examined caddisflies and probably all living creatures are chimeric entities composed of components of different origin. Genomes and phenomes are tree-like on the surface but more reticulated in the deep. We understand chimerism with universal consequences, expanding well beyond the evolutionary tree-thinking of reductionism and determinism. Taxa are chimeric or at least chimerical in a stochastic universe under the permanent fluxes of the external and internal impacts created by intercourses between entropy and energy gradients. We have surveyed how to create and correct synonymies in the splitter/lumper perspectives along the principles of compositional and specification hierarchies understood as quantitative variability of non-adaptive neutral and qualitative stability of adaptive, non-neutral traits. We outlined how the apophantic (declaratory) hybris creates synonymies and underestimates biodiversity. After redrawing the diverging genitalic structures, particularly the speciation traits we have reinstated species status of eight taxa: W. trifida Andersen, 1983 stat.restit, stat. nov., W. albanica Oláh, 2010 stat. restit., W. bulgarica Novak, 1971 stat. nov., W. daga Oláh, 2014 stat. restit., W. graeca Oláh, 2014 stat. restit., W. busa Oláh, 2014 stat. restit., W. homora Oláh, 2014 stat. restit. W. nielseni Moretti, 1981 stat. nov. Character selection and lineage sorting procedures established the following species groups, species complexes and species clades in the European species of Wormaldia: W. occipitalis species group: W. occipitalis species complex; W. charalambi species group; W. copiosa species group; W. triangulifera species group: W. bulgarica species complex, W. khourmai species complex, W. subnigra species complex: W. asterusia species clade, W. subnigra species clade, W. vercorsica species clade; W. triangulifera species complex, W. variegate species complex. Unplaced species: W. ambigua, W. algirica, W. sarda. In this revision we have described fourteen new species: W. longiseta, W. carpathica, W. kurta, W. parba, W. foslana, W. kumanskii, W. libohova, W. silva, W. gorba, W. kera, W. rona, W. sima, W. granada, W. telva

Published
2019

6. 16846 Clinical evaluation, cutaneous homeostasis, and epidermal barrier analysis of a human tissue engineered skin substitute for severe burn patients

Author

Salvador Arias-Santiago, Ana Fernández-González, Gloria Carmona PharmG, Purificación Gacto, Antonio M. Lizana-Moreno, Antonio Ruiz-Garcia, Natividad Cuende, Miguel Alaminos, Antonio Campos, and Rosario Mata

Subjects
Pathology, medicine.medical_specialty, Epidermal barrier, business.industry, Medicine, Tissue engineered skin, Severe burn, Dermatology, business, Clinical evaluation, Homeostasis
Published
2020
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7. Elevated pulse pressure and cardiovascular risk associated in Spanish population attended in primary care: IBERICAN study

Author

Ana Moyá-Amengual, Antonio Ruiz-García, Vicente Pallarés-Carratalá, Adalberto Serrano-Cumplido, Miguel Ángel Prieto-Díaz, Antonio Segura-Fragoso, Sergio Cinza-Sanjurjo, the researchers of the IBERICAN study, Alfonso Barquilla García, Ángel Díaz Rodríguez, Carlos Escobar Cervantes, Francisco Javier Alonso Moreno, Jesús Vergara Martín, Juan José Badimón, José Polo García, Luis Rodríguez Padial, Miguel Ángel Prieto, Rafael Vidal Pérez, Sergio Cinza Sanjurjo, Sònia Miravet Jiménez, Sonsoles Velilla Zancada, José Ramón Banegas, Vicente Martín Sánchez, Vicente Pallares Carratalá, Antonio Segura Fragoso y Rafael Manuel Micó Pérez, Antonio López Téllez, Jesús Vergara Martin, María De Los Ángeles Ortega Osuna, Cristóbal Prieto Cid, Mª José Hidalgo Fajardo, José Lorente Serna, Ángel Domínguez Requena, Ricardo Alberola Cañizares, Manuel Ruiz Peña, Filomena Herrero Collado, Marcela Montes Vázquez, Rafael Ángel Carrascal Garrido, María Reyes Herrera Lozano, Beatriz Ortiz Oliva, Francisco José Anguita, Carmen Pérez Ibáñez, Carlos Alberto Cabrera Rodríguez, María José Cruz Rodríguez, Sandra Bonilla Ruiz, Rocio Reina González, Salome Abad Sánchez, Inmaculada Santana Martínez, Rafael Sánchez Jordán, Juan Mª Ramos Navas-Parejo, José Manuel Ramírez Torres, José María Beltrán Poveda, María Adoración De Cruz Benayas, Carmen Fernández Gil, Jon Iñaki Esturo Alcaine, Antonio Mora Quintero, Fernando Leiva Cepas, José Luis Carrasco Martín, Emilio García Criado, Mercedes Vázquez Blanco, Isabel Mora Ortiz, Leovigildo Ginel Mendoza, Juan Carlos Aguirre Rodríguez, Esperanza María Romero Rodríguez, José Acevedo Vázquez, Juan Gabriel García Ballesteros, María De La Paz Fernández Lara, Patricia Agüera Moreno, Eduardo Paños Maturana, Juan Manuel Ignacio Expósito, Noelia Carrillo Peñas, Carmen María Abad Faya, Ana Marina Almagro Duque, Rubén Torrescusa Camisón, Paloma Menéndez Polo, Marina Peña García, Cristina López Fernández, Ascensión Estepa Torres, Miguel Gutiérrez Jansen, Esperanza Loizaga González, Lisardo García Matarín, Enrique José Gamero De Luna, Javier Benítez Rivero, María José Gómez González, Carmen Gómez Montes, Juan Carlos Rodríguez Rodríguez, Juana María González Barranco, Josefa Ramírez Vizcaíno, María Ángeles Miranda Sánchez, Eva Trillo Calvo, Concepción Bayod Calvo, Susana Larripa De La Natividad, German Grasa Lambea, Emilio Jiménez Marín, Ana Cristina Navarro Gonzalvo, Antonio Pablo Martínez Barseló, Irene Peña León, Ángel González Pérez, Liliana Mahulea, María José Pérez Martínez, Ana Piera Carbonell, Margarita Alonso Fernández, María Montserrat Rueda Cuadrado, Rodrigo Abad Rodríguez, José Miguel Álvarez Cabo, Rubén Sánchez Rodríguez, Eva María Cano Cabo, Anny Romero Secin, Miguel Ángel Prieto Díaz, Juan Jesús García Fernández, Saúl Suárez García, Fernando García Romanos, Antonia Moreno González, María Lara Amengual Sastre, Susana Martínez Palli, José Alfonso Ramón Bauza, Jose Ortiz Bolinches, Carmen Fernández Fernández, María Isabel Orlandis Vázquez, Ana Sanchís Mezquita, Fernando Unceta Aramburu, Juan Fernando Peiró Morant, Ana Moyá Amengual, Matéu Seguí-Díaz, José Félix Zuazagoitia Nubla, Ana Echevarría Ituiño, Gregorio Mediavilla Tris, María Carmen Noriega Bosch, Esther González, María Luisa Ruiz Macho, Ruth Sendino Del Olmo, Asunción Olagorta De Prado, Ana López De Viñaspre Muguerza, Jesús Iturralde Iriso, Mª Rosario Virtus Iñurrieta, Lucas Ulloa Bahamonde, Isidro Godoy García, Fernando Rubio Sevillano, María Isabel González González, Marta Pérez Souto, Raquel De León Contreras, Sara Isabel Almeida González, Irene Almería Diez, Virginia Maria Mirabal Sánchez, Francisco José Escobar Lavado, Yoel Anta Pérez, Nayra Sánchez Hernández, Juan Luis Alonso Jerez, Ricardo Koch, Nayra Ramírez Mendoza, Héctor Suárez Hernández, Francisco Jesús Morales Escobar, E Lidia Gutiérrez Fernández, Fernando Andrés Mantecón, Ana Belén García Garrido, Asunción Vélez Escalante, Luisa Alonso Rentería, Jesús Sainz Jiménez, Guillermo Pombo Alles, Esperanza Rueda Alonso, Juan Antonio Divisón Garrote, Pedro Martínez Sotodosos, Juan Antonio Vivancos Fuster, María García Palencia, José Ambrosio Torres Moraleda, Sara González Ballesteros, Ana Carmen Gil Adrados, Antonio González Cabrera, Miguel Ángel Babiano Fernández, Guillermo Rico García, Juan José Criado-Álvarez, Pilar Torres Moreno, Francisco Javier Arribas Aguirregaviria, Alicia Sahuquillo Martínez, Lourdes Maria Santos Bejar, Miguel Laborda Peralta, Raúl Piedra Castro, Carlos Santos Altozano, Lucia González-Tarrio Polo, Pedro Valiente Maresca, Reinilda Mota Santana, Noemi Elizabeth Terrero Ledesma, Noelia Garrido Espada, Gabriela Delia Rosa Zambrana Calvi, Cristina de Castro Mesa, Blanca Cordero García, Pilar Sorrius Sitges, Ana María de Santiago Nocito, César Lozano Suárez, Juan Lorenzo Gutiérrez Montero, Juan Ignacio López Gil, María Dolores Fernández Ortega, Miren Elizari Roncal, María Ascensión López Serrano, Nuria Esther Adrián De La Fuente, Belén Angulo Fdez. De Larrea, Naiara Cubelos Fernández, Guiomar Luz Ferreiro Gómez, Diana Gómez Rodríguez, Sonia María Andrés Tuñón, María Ajenjo González, Serafín De Abajo Olea, Juan José León Regueras, César Manuel Gallego Nieto, Delio Vázquez Mallada, Maria De La O Gutiérrez García, Pablo Baz Rodríguez, José Ignacio Ferradal García, Blanca Delia De Román Martínez, Ana Arconada Pérez, Omar Mahmoud Atoui, Álvaro Morán Bayón, María Teresa Armenteros Del Olmo, Francisco Javier García-Norro Herreros, Enrique Méndez Rodríguez, Diana María Narganes Pineda, Verónica Ortiz Ainaga, Milagros Sonlei Sánchez Guevara, Laura Villota Ferreiro, M Teresa Grande Grande, Francisco Vicente Martínez Gracia, Jesús Palomo del Arco, María Dolores Moriano García, Beatriz Jiménez Muñoz, Gemma Rovira Marcelino, Diana Elizabeth Fernández Valverde, Roser Rodó Bernadó, Maria Teresa Ortiz Lupiañez, Najlaa Najih, José María Diéguez Parra, Mª Rosa Benedicto Acebo, Mari Luz Bravo Vicien, Alberto Ramón León Estella, Juan Antonio Muñoz Gómez, Alicia Mostazo Muntané, Isabel Ortega Abarca, Anna Gasol Fargas, Brenda Elizabeth Riesgo Escudero, Susana Elizabeth Riesgo, Edgar Zaballos Castellvi, Celia Cols Sagarra, Marta Herranz Fernández, Josep Alins Presas, Idaira Damas Pérez, Rosa M Alcolea Garcia, Ines Monte Collado, Roberto Genique Martínez, María José Guasch Villanueva, Teresa Rama Martínez, Lucio Pinto Pena, Josefa María Panisello Royo, Inés Gil Gil, Carlos Gómez Ruiz, Rita Sahun Font, Anna Fuentes Lloveras, Alberto Calderón Montero, María Del Mar Zamora Gómez, Elena Alarcón Cebrián, Mª José Piñero Acin, Celia Pecharroman Sacristán, M Soledad Mayayo Vicente, Mª Paz Pérez Unanua, Nuria Marañón Henrich, Saray Gómez Monreal, Sonia Redondo De Pedro, Blanca Sanz Pozo, Irene Moreno Martínez, Beatriz Lopez Uriarte, Carmelina Sanz Velasco, Amaya Gárriz Aguirre, Montserrat Rivera Teijido, German Reviriego Jaén, Jose Ignacio Aza Pascual-Salcedo, Josefa Vázquez Gallego, Julia Caballer Rodilla, Aida Herrera, Ezequiel Arranz Martínez, Ana María Gómez Calvo, Paula Morán Oliva, Mª Milagros González Béjar, Julio Antonio Heras Hitos, Olga García Vallejo, Manuel De Jesús Frías Vargas, María Jesús Castillejo Boguerin, Aurora García Lerín, Miguel Ángel María Tablado, Elena Concepción García García, Leticia De Miguel Acero, Carmen Zárate Oñate, Aránzazu Barranco Apoita, María Ester Montes Belloso, Ana María Huertas Velasco, Rafael Sáez Jiménez, Julia Natividad García Pascual, María Clemencia Zuluaga Zuluaga, Mª Cruz Díez Pérez, Antonio Ruiz García, Cristina Murillo Jelsbak, Virginia Lasso Oria, Amelia González Gamarra, Elena Rodilla Rodilla, Alberto Galgo Nafría, María Mestre de Juan, Mª Carmen García Albiñana, Mª del Pilar Moreno Cano, Paula Hernanz López, Paloma Casado Pérez, Jacinto Espinosa García, José Ignacio Prieto Romo, Leandro Fernández Fernández, Javier Sierratapia, Nieves Moreno Regidor, Francisco Javier Zaballos Sánchez, Ana Moreno Moreno, Francisco Carramiñana Barrera, Juan Jose Torres Vázquez, María José Gamero Samino, Miguel Ángel De Santiago Rodríguez, Pablo Rafael Gómez Martínez, Antonio Carlos Elías Becerra, Javier Soto Olivera, Víctor Cambero, Julián Domínguez Ávila, Andrés Simón Fuentes, Jorge Manuel De Nicolás Jiménez, Dimas Igual Fraile, Guadalupe Nieto Barco, Ignacio Araujo Ramos, Mª Luz Serrano Berrocal, Francisco Buitrago Ramírez, Minerva Gallego Marcos, Félix Suarez González, Victoriano Chavero Carrasco, Francisco Guerra Peguero, Francisco Javier Sánchez Vega, Manuel Tejero Mas, Alba Palmerín Donoso, Miguel Turégano Yedro, María Beatriz Esteban Rojas, Fátima Cabezudo Moreno, Nawson Elver Quevedo Saldaña, María Del Mar García Fenés, Timotea Garrote Florencio, José María Fernández Toro, Vicente Caballero Pajares, María José Gómez Barquero, Alejandra Rey Rañal, Elena García Del Río, Enrique Nieto Pol, Julio Álvarez Fernández, Pilar Alonso Álvarez, Mª Luisa Jorge Gómez, Antonio Calvo Guerrero, Isabel Celemín Colomina, Lucia Barreiro Casal, Juana Fernández Moreno, Mª Angelines Carballal Martínez, Nabor Díaz Rodríguez, Carlos Moral Paredes, Dolores Recarey García, Francisco Javier Iglesias Mato, Antonio Fouz Ulloa, Amparo Fidalgo González, Noelia Dios Parada, Patricia Conde Sabarís, Ana Isabel Rodríguez Pérez, Ana Inés García Palacio, Víctor Julio Quesada Varela, Lidia Romero Iglesias, Ángel Lado Llerena, Carmen Lires Rodríguez, María Luisa Carretero Díaz, José Carreira Arias, José Luís Vázquez Camino, María Del Carmen Torreiro Penas, Sandra Yáñez Freire, Daniel Rey Aldana, Carlos Piñeiro Díaz, Portal González Lorenzo, José Rodríguez Campos, Rubén Blanco Rodríguez, Manuel Portela Romero, Lucía Vilela de Castro, Sonsoles María Velilla Zancada, Rafael Crespo Sabarís, Oscar Fernando Isaula Jiménez, Jesús Manuel González Puga, Jorge Antonio Benaín Ávila, Óscar Del Toro González, Vicente Llorca Bueno, Ana María Ballesteros Pérez, Domingo J Rubira López, Mª Dolores Esteve Franco, Elena Sánchez Pablo, María Teresa Palacios López, Juan Castillo Meroño, José María Lobo Martínez, Isabel María Peral Martínez, J Eduardo Carrasco Carrasco, Armando Santo González, Juan Gomáriz García, Beatriz Ríos Morata, Laura Sánchez Iñigo, Inés Sanz Pérez, Vicente Pascual Fuster, Mª Dolores Aicart Bort, Natividad Vázquez Gómez, Carlos Lluna Gasco, Teresa Amorós Barber, Pedro Antonio Medina Cano, Miguel Monteagudo Moncho, María Jesús Larré Muñoz, Raquel Navarro Hernández, Francisco José Martínez Egea, Antonio Tramontano, Marta Ferrer Royo, Belén Persiva Saura, Juan A Contreras Torres, José Mª Tirado Moliner, Alejandro Salanova Penalba, Ariadna Cucó Alberola, Fernando María Navarro I Ros, Enrique Beltrán Llicer, Ana Seoane Novás, Inmaculada Martín Valls, Gracia Verdú Mahiques, Enrique Peña Forcada, Nieves Aguilar Gómez, Francisco Javier Sanz García, María Dolores Paradís Bueso, María Eugenia Alegre Romero, Antonio Francés Camus, María Amparo Antón Peinado, Rosa Latorre Santos, Mª Asunción Palomar Marín, María Carmen Botella García, Eva Sánchez Fresquet, Pedro Sala Paños, Tomás Sánchez Ruiz, Rosa Ana Valero Valero, María Seoane Vicente, Magdalena Martin Llinares, Antonio Masiá Alegre, José Luis Llisterri Caro, Irene Lluch Verdu, Vicente Pallarés Carratalá, Francisco Valls Roca, Rafael Manuel Micó Pérez, Carmen Barceló Dupuy, Elena Benages Vicente, María José Gimeno Tortajada, Mercedes Calleja del Ser, Martín Menéndez Rodríguez, and Rosalía Victoria Carbonell Castelló

Subjects
hypertension, pulse pressure, cardiovascular risk factors, subclinical target organ damage, hypertensive cardiovascular disease, cardiovascular disease, Diseases of the circulatory (Cardiovascular) system, RC666-701
Abstract

IntroductionElevated pulse pressure (ePP) is an independent marker of cardiovascular risk (CVR) in people older than 60, and a functional marker of subclinical target organ damage (sTOD) which can predict cardiovascular events in patients with hypertension (HTN), regardless of sTOD.ObjectiveTo evaluate the prevalence of ePP in adult population seen in primary care and its association with other vascular risk factors, sTOD and with cardiovascular disease (CVD).Materials and methodsObservational multicentre study conducted in Spain (8,066 patients, 54.5% women) from the prospective cohort study IBERICAN recruited in Primary Care. Pulse pressure (PP) was defined as the difference between the systolic blood pressure (SBP) and the diastolic blood pressure (DBP) ≥60 mmHg. Adjusted (for age and sex) ePP prevalence were determined. Bivariate and multivariate analyses of the possible variables associated with ePP were carried out.ResultsThe mean of PP was 52.35 mmHg, and was significantly higher (p

Published
2023
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8. Distribution of Trichoptera communities in the Hozgargantacatchment (Los Alcornocales Natural Park, SW Spain)

Author

Manuel Ferreras-Romero, Antonio Ruiz Garcia, and Antonio F. Herrera Grao

Subjects
Original Paper, geography.geographical_feature_category, biology, Ecology, Environmental factor, Rhyacophila, caddisflies, SW Spain, temperature, Aquatic Science, medicine.disease_cause, biology.organism_classification, Article, Geography, Caddisfly, Lobata, Tributary, medicine, Ordination, Species richness, conductivity, Ecology, Evolution, Behavior and Systematics, Hydrobiology
Abstract

The distribution of Trichoptera of the Hozgarganta River (Los Alcornocales Natural Park, SW Spain) in relation with environmental factors was examined. Three groups of species were recognised according to the altitudinal gradient. In the headwaters the caddisflies Rhyacophila fonticola, Lepidostoma hirtum, Silonella aurata, Allogamus gibraltaricus, Hydropsyche infernalis and Diplectrona felix predominated; in the constrained section of the tributaries Polycentropus kingi, Chimarra marginata, Hydropsyche iberomaroccana, R. fonticola and Tinodes sp. prevailed; finally, in the main channel H. iberomaroccana, C. marginata, Hydropsyche lobata, Leptocerus lusitanicus and Rhyacophila munda were the most important species. A direct ordination analysis (CCA) was used to describe assemblage changes among sites and corroborated that conductivity and temperature were the variables that best explained Trichoptera distribution. The temporal analysis showed changes in the Trichoptera diversity and richness in permanent stretches, as well as variations in the structure of the communities according to the season. We identified autumn‐winter species (H. infernalis, H. siltalai, H. lobata, R. fonticola and R. munda ) and summer ones (Ithytrichia sp, Oxyethira unidentata, Mystacides azurea and Setodes argentipunctellus ). In the basin we distinguished permanent, intermittent and ephemeral reaches with similar caddisfly richness and diversity, however the species composition associated with each one was different. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

Published
2006

10. Experimental determination of correlation in scattered light by moving surfaces

Author

Manuel Vázquez, Rafael Ruiz de Gopegui i Fernández, Antonio Ruiz Garcia, and M. Alvarez-Claro

Subjects
Multiple exposure, Speckle pattern, Geography, Particle image velocimetry, business.industry, Electronic speckle pattern interferometry, Photography, Line (geometry), Computer vision, Artificial intelligence, Velocimetry, Holographic interferometry, business
Abstract

In the application of speckle velocimetry to real physical situations in phisics of fluids (fundamentally, in the PIV mode) several problems arise. The analysis of the information stored in a specklegram only is reasonably available if a automatic method is carried out. The fundamental problem is however the quantity and quality of such information. The research has followed fundamentally two approach, one in which the principal task is the automatic adquisition of information from the fringe pattern and other in which the principal goal is the formation of reasonably good fringe pattern. In this line, two methods, the multiple exposure and the two-step or copy one has been implemented that show a good performance. There are however certain physical situations in which a ntmiber of problems arise , between them , the apparition of non regular fringe pattern. The experiment proposed here try to reach a more profund insight into de problem so as a systematic research about the relation between speckle photography (SP) and holographic interferometry (HI).

Published
1990
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