Prediction and dynamics of ripples and the bottom boundary layer under combined wave and current flow in the field (poster)

Previously published investigations on the wave bottom boundary layer and ripple geometry are combined to derive a new ripple predictor for flows under waves or under combined wave-current flows. The ripple predictor of Nielsen (1981) for waves only was modified in order to use it in combined flows. The modified model now uses the effective Shields parameter total roughness-related in contrast to the most commonly used Shields parameter grain roughness-related. To predict the ripple geometry the proposed model uses the results of the Christoffersen and Jonsson (1985) model, which describes the dynamics of the wave-current bottom boundary layer (WCBBL). The ripple predictor and the WCBBL model take into account the bedforms already existing to predict the new ripple and flow field. The predicted ripple and WCBBL parameters fits very well the selected measurements of Li and Amos (1998) for ripple geometry and observations on saltation/suspension and sheet flow. The ripple predictor proposed models the ripple field in the break-off range and when large wave ripples were observed in the field, after the peak of the storms, without explicit assumptions. The apparent roughness length modelled by the WCBBL model is similar to measurements, made by other researchers in laboratories

Estudio biométrico de la abeja melífera (Apis mellifera, Linneo 1758) (Hymenoptera, Apidae) de la isla de La Palma del Archipiélago Canario. II. Ángulos y longitudes de las alas.

The honey bees (A. mellifera L.) from the island of La Palma constitute a morphological group within which differences related to the geographical location of the apiaries are difficult to distinguish, probably due to the buying and selling of hives among beekeepers, and also to the migratory style of bee-keeping practised on the island. We have also studied the possible relationship of these bees with A. m. intermissa, which is distributed throughout the north of Africa, and with A. m. iberica in the Iberian Peninsula. Our results indicate that these bees are probably the result of a cross between these two races followed by selection of the best genotypes adapted to the environmental conditions.Las abejas meliferas (A. mellifera L.) oriundas de la isla de La Palma constituyen un grupo morfológico, en el que no podemos apreciar diferencias relacionadas con la localización geográfica de los colmenares; probablemente esto sea debido a las prácticas de compra-venta de colmenas entre los apicultores, y a la transhumancia practicada dentro de la isla. También hemos estudiado la posible relación de parentesco de estas abejas con la raza que se distribuye por el norte de África (A. m. intermissa), o con la que se localiza en la Península Ibérica (A. m. iberica). Los resultados obtenidos nos indican que probablemente estos animales sean el resultado de un proceso cruce entre las dos razas, y posterior selección de los genotipos mejor adaptados a unas determinadas condiciones ambientales

Los usos de Internet en la organización de la construcción colectiva de la candidatura independiente de Pedro Kumamoto en 2015

La presente investigación de corte cualitativo tiene como proceso de indagación al estudio de caso y como pregunta central el uso que el equipo de Wikipolítica Jalisco dio a Internet en 2015 para organizar la construcción colectiva de la candidatura independiente de Pedro Kumamoto, junto con los residentes del Distrito 10 de Zapopan, Jalisco. Las preguntas secundarias que se plantearon fueron: ¿Qué prácticas comunicativas implicó la organización de esa construcción colectiva? ¿Qué perfil tenían los integrantes del equipo de Wikipolítica que emplearon Internet para dicha organización? Y finalmente se cuestionó el contexto en el que se desarrolló la construcción colectiva de la candidatura independiente de Kumamoto. Para recolectar los datos pertinentes se empleó el método de la entrevista semiestructurada semi estandarizada, realizada a seis miembros del equipo de la campaña de Kumamoto, con base en las muestras seleccionadas de conveniencia y en cadena. También se tomaron en cuenta criterios de equidad de género, de variedad en la experiencia y de variedad en cuanto a adscripciones y perfil de los organizadores. Los conceptos centrales que constituyen el marco teórico del estudio son: comunicación política, prácticas comunicativas, sociedad red global, estratamentación, comunicación multicapa y tecnopolítica. A éstos los atraviesan otras nociones desarrolladas en el tercer capítulo, vinculadas al caso. El análisis consistió en un primer ciclo de codificación, en la elaboración de memorandos analíticos, en la categorización plasmada en un árbol de categorías y en el hallazgo de patrones. Los resultados fueron presentados y ordenados en cuatro grandes temas o dimensiones. Se trata del perfil de los organizadores de la campaña; contextos; prácticas comunicativas internas y usos de la tecnología digital, durante la campaña de 2015 para impulsar la candidatura de Pedro Kumamoto, y comunicación externa. Tras conocer los resultados y conclusiones de esta investigación se reconoce el aporte que se hace a la documentación y análisis de casos de estudio que se insertan en la tercera fase analítica que observa los desarrollos de la comunicación política desde una perspectiva temporal.ITESO, A.C

Natural Variability and Warming Signals in Global Ocean Wave Climates

地球全体の波浪特性の変化傾向と自然変動の関係を解明 --地球温暖化の沿岸域への影響を定量化--. 京都大学プレスリリース. 2021-06-15.This paper presents a multivariate classification of the global wave climate into types driven by atmospheric circulation patterns. The primary source of the net long-term variability is evaluated based on historical wave simulations. Results show that the monsoon, extratropical, subtropical, and polar wave climate types of the Pacific and North Atlantic Oceans are dominated by natural variability, whereas the extratropical and subtropical wave climate types in the Indian Ocean, and the tropical wave climate types of the Atlantic and Pacific Oceans exhibit a global warming signal. In the Pacific sector of the Southern Ocean, strong natural variability may mask a global warming signal that is yet to emerge as being statistically significant. In addition, wave climate teleconnections were found across the world that can provide a framework for joint strategies to achieve the goals of climate adaption for resilient coastal communities and environments

Predictor factors of perceived health in family caregivers of people diagnosed with mild or moderate Alzheimer's disease

Caring for a person diagnosed with Alzheimer’s disease has a negative impact on family caregivers’ psychological health. This study examined the factors related to ‘perceived health’ and ‘presence of new-onset mental health problems’ in family caregivers of people diagnosed with mild and moderate Alzheimer’s disease. A cross-sectional observational study carried out in Almeria’s Healthcare District (Spain). A total of 255 family caregivers (42.4% cared for people with mild Alzheimer’s disease and 57.6% cared for people with moderate Alzheimer’s disease) participated in the study from January to December 2015. Mainly, caregivers were women (81.5% in the mild Alzheimer’s disease group and 88.4% in the moderate Alzheimer’s disease group), and their average age was 56.54 years (standard deviation (SD) = 13.13) and 54.47 years (SD = 11.71), respectively. Around 47% of the caregivers had been caring for the person with Alzheimer’s between two and five years. The Goldberg General Health Questionnaire was used to measure perceived health and the presence of new-onset mental health problems. An exploratory descriptive analysis and a multivariate logistic regression analysis were conducted. For caregivers of people with mild Alzheimer’s disease, ‘perceived health’ was related to ‘perceived social support’ (r = −0.21; p = 0.028), ‘person’s level of dependency’ (r = −0.24, p = 0.05), ‘severity of the person’s neuropsychiatric symptoms’ (r = 0.22; p = 0.05), and ‘caregiver’s emotional distress in response to the person’s neuropsychiatric symptoms’ (r = 0.22; p = 0.05). For caregivers of people with moderate Alzheimer’s disease, ‘perceived health’ was related to ‘perceived social support’ (r = −0.31; p ˂ 0.01), ‘presence of neuropsychiatric symptoms’ (r = 0.27, p = 0.01), ‘severity of the person’s neuropsychiatric symptoms’ (r = 0.32, p = 0.01) and ‘caregiver’s emotional distress in response to the person’s neuropsychiatric symptoms’ (r = 0.029; p = 0.01). The presence of new-onset mental health problems was detected in 46.3% (n = 50) of caregivers of people with mild Alzheimer’s and 61.9% (n = 91) of caregivers of people with moderate Alzheimer’s. When people are diagnosed with mild Alzheimer’s disease, intervention programs for caregivers should aim to regulate emotions and promote positive coping strategies. When people are diagnosed with moderate Alzheimer’s disease, intervention programs for caregivers must allow them to adapt to caregiving demands that arise with the progression of Alzheimer’s disease

Promoting dignified end-of-life care in the emergency department: a qualitative study

Background: Preservation of a dying person’s dignity in the emergency department (ED) is fundamental for the patient, his/her relatives and healthcare professionals. The aim of this study was to explore and interpret physicians’ and nurses’ experiences regarding conservation of dignity in end-of-life care in dying patients in the ED. Methods: A qualitative study based on the hermeneutic phenomenological approach, was carried out in the emergency department of two general hospitals. A total of 16 nurses and 10 physicians participated in the study. Data collection included 12 individual in-depth interviews and 2 focus groups. Results: The findings revealed that two themes represent the practices and proposals for the conservation of dignity in the emergency department: dignified care in hostile surroundings and the design of a system focused on the person’s dignity. Conclusion: Dignifying treatment, redesigning environmental conditions, and reorienting the healthcare system can contribute to maintaining dignity in end-of-life care in the ED

Morpholigical study of honey bees on the Canary Islands (Gran Canaria, Tenerife, La Palma, Gomera)

A morphological study was made of worker bees from 49 hives located at four island from the Canary archipelago. The study analysed 18 morphological characters and we have found that the bees from Gran Canaria and Tenerife belong to the same groupe, the animals from Gomera constitute a group near the afore mentioned, and the bees from La Palma form an independent group. Also, we have compared the data with data to come from hives placed in the south of the Iberian peninsula and in the north of Africa. We have found that the bees from Africa form an independent group, and the bees from the Iberian peninsula are included in the La Palma group.Se ha llevado a cabo un estudio morfológico de las abejas obreras procedentes de 49 colmenas situadas en cuatro islas del Archipiélago Canario. Se han analizado 18 características morfológicas, encontrando que las abejas procedentes de Gran Canaria y Tenerife pertenecen al mismo grupo; los animales de Gomera constituyen un grupo cercano al anterior y las abejas de La Palma forman un grupo independiente. También hemos comparado los datos obtenidos, con los procedentes de colmenas situadas en el sur de la península Ibérica y en el norte de África. Encontramos que las abejas del norte de África constituyen un grupo independiente y que los animales del sur de la península se incluyen en el grupo de las abejas de La Palma

Effects of a simulation-based workshop on nursing students' competence in arterial puncture

Objective: To evaluate whether a short simulation-based workshop in radial artery puncture would improve nursing students’ competence to a level in which they could practise the procedure on a live patient without compromising his safety. Methods: Quasi-experimental one-group pretest-posttest study with 111 third-year nursing students. A 1.5-hour simulation-based workshop was implemented. This included a video-lecture, live demonstrations, selfdirected simulated practice in dyads and individual intermittent feedback. Participants’ skills, knowledge and self-efficacy in arterial puncture were measured before and after attending the workshop. Results: After the intervention, a total of 61.1% of the participants showed the level of competence required to safely practice radial artery puncture on a live patient under supervision. Conclusion: Effective simulation-based training in arterial puncture for nursing students does not necessarily need to be resource-intensive. Well-planned, evidence-based training sessions using low-tech simulators could help educators to achieve good educational outcomes and promote patient safety

Evaluación de cuatro métodos para colección de semen en borrego tabasco o pelibuey

Se evaluaron cuatro métodos para colectar semen de borrego "Tabasco o Pelibuey". El estudio se llevó a cabo en el C.E.P. "La Posta" de Paso del Toro, Ver., utilizándose 16 borregos con una edad de 543.6 ± 25.7 días y peso corporal de 39.3 ± 2.0 kg sometidos a condiciones de manejo y alimentación similares. El bato fue dividido al azar en cuatro tratamientos para cuatro métodos de colección diferentes, cada uno con cuatro borregos. En el tratamiento I, se usó vagina artificial (V.A.) con cero montas falsas; en el tratamiento II, se usó V.A. con dos montas falsas; en el tratamiento III, se usó electroeyaculador (E.E.) con un electrodo de barras longitudinales, y en el tratamiento IV se usó E.E. con un electrodo de anillos. Los eyaculados obtenidos con V.A. fueron estadísticamente mejores a los obtenidos con E.E. Dentro de los tratamientos con V.A. no se observó ningún efecto benéfico al utilizar dos montas falsas. Resultaron ser superiores los eyaculados colectados con V.A. cero montas falsas en concentración (P < 0.05), motilidad (P < 0.01) y número total de espermatozoides (