Las playas de Menorca: naturaleza y distribución

La costa de Menorca acoge 114 sistemas de playa que representan el 9,9% de la línea de costa de Menorca. Ubicadas en un ambiente micromareal y expuestas a oleajes que raras veces superan los 3m de altura significante, la mayoría de las playas menorquinas se caracterizan por presentar arenas biogénicas de medias a gruesas, estando su distribución y naturaleza condicionadas, principalmente, por el contexto morfoestructural de la isla. Tanto en lo tocante a la configuración fisiográfica de las playas y su espacio de acomodación como a la naturaleza y tipología del sedimento. En general, la tasa de evolución media de las playas de Menorca no presenta grandes problemas y se caracteriza por la estabilidad, una estabilidad reforzada por el carácter protegido o semi-protegido de las ensenadas que acogen a las playas o porque las playas más expuestas coinciden las acumulaciones de cantos y bloques al pie de acantiladosThe Menorcan coast contains 114 beach systems, which occupy 9,9% of the coastline. Menorcan beaches are characterized by a microtidal and a moderate wave energy environment where, at annual scale, in few occasions significant wave heights attend values larger than 3m. Biogenic medium to coarse sands beaches are the dominant feature, although the island morphostructure controls both: the type of beach and the sediment nature and/or texture. In average, the shoreline change rate for the island beaches shows a stability scenario reinforced by the large number of embayed and pocket beaches along the Menorcan coast. The beaches exposed to the most energetic waves tend show cobble-boulder beaches at the cliff-toeVersión del edito

Las playas de Menorca: naturaleza y distribución

La costa de Menorca acoge 114 sistemas de playa que representan el 9,9% de la línea de costa de Menorca. Ubicadas en un ambiente micromareal y expuestas a oleajes que raras veces superan los 3m de altura significante, la mayoría de las playas menorquinas se caracterizan por presentar arenas biogénicas de medias a gruesas, estando su distribución y naturaleza condicionadas, principalmente, por el contexto morfoestructural de la isla. Tanto en lo tocante a la configuración fisiográfica de las playas y su espacio de acomodación como a la naturaleza y tipología del sedimento. En general, la tasa de evolución media de las playas de Menorca no presenta grandes problemas y se caracteriza por la estabilidad, una estabilidad reforzada por el carácter protegido o semi-protegido de las ensenadas que acogen a las playas o porque las playas más expuestas coinciden las acumulaciones de cantos y bloques al pie de acantiladosThe Menorcan coast contains 114 beach systems, which occupy 9,9% of the coastline. Menorcan beaches are characterized by a microtidal and a moderate wave energy environment where, at annual scale, in few occasions significant wave heights attend values larger than 3m. Biogenic medium to coarse sands beaches are the dominant feature, although the island morphostructure controls both: the type of beach and the sediment nature and/or texture. In average, the shoreline change rate for the island beaches shows a stability scenario reinforced by the large number of embayed and pocket beaches along the Menorcan coast. The beaches exposed to the most energetic waves tend show cobble-boulder beaches at the cliff-toeVersión del edito

The evolution of the ventilatory ratio is a prognostic factor in mechanically ventilated COVID-19 ARDS patients

Background: Mortality due to COVID-19 is high, especially in patients requiring mechanical ventilation. The purpose of the study is to investigate associations between mortality and variables measured during the first three days of mechanical ventilation in patients with COVID-19 intubated at ICU admission. Methods: Multicenter, observational, cohort study includes consecutive patients with COVID-19 admitted to 44 Spanish ICUs between February 25 and July 31, 2020, who required intubation at ICU admission and mechanical ventilation for more than three days. We collected demographic and clinical data prior to admission; information about clinical evolution at days 1 and 3 of mechanical ventilation; and outcomes. Results: Of the 2,095 patients with COVID-19 admitted to the ICU, 1,118 (53.3%) were intubated at day 1 and remained under mechanical ventilation at day three. From days 1 to 3, PaO2/FiO2 increased from 115.6 [80.0-171.2] to 180.0 [135.4-227.9] mmHg and the ventilatory ratio from 1.73 [1.33-2.25] to 1.96 [1.61-2.40]. In-hospital mortality was 38.7%. A higher increase between ICU admission and day 3 in the ventilatory ratio (OR 1.04 [CI 1.01-1.07], p = 0.030) and creatinine levels (OR 1.05 [CI 1.01-1.09], p = 0.005) and a lower increase in platelet counts (OR 0.96 [CI 0.93-1.00], p = 0.037) were independently associated with a higher risk of death. No association between mortality and the PaO2/FiO2 variation was observed (OR 0.99 [CI 0.95 to 1.02], p = 0.47). Conclusions: Higher ventilatory ratio and its increase at day 3 is associated with mortality in patients with COVID-19 receiving mechanical ventilation at ICU admission. No association was found in the PaO2/FiO2 variation

(Supplementary material) A spreadsheet structure for building compilations of MIS 5e (and older) sea-level data, and updating a formerly proposed one

The Last Interglacial (MIS 5e, 128-116 ka) is among the most studied past periods in Earth's history. The climate at that time was warmer than today, primarily due to different orbital conditions, with smaller ice sheets and higher sea-level. Field evidence for MIS 5e sea-level was reported from thousands of sites, but often paleo shorelines were measured with low-accuracy techniques and, in some cases, there are contrasting interpretations about paleo sea-level reconstructions. For this reason, large uncertainties still surround both the maximum sea-level attained as well as the pattern of sea-level change throughout MIS 5e. Such uncertainties are exacerbated by the lack of a uniform approach to measuring and interpreting the geological evidence of paleo sea-levels. In this review, we discuss the characteristics of MIS 5e field observations, and we set the basis for a standardized approach to MIS 5e paleo sea-level reconstructions, that is already successfully applied in Holocene sea-level research. Application of the standard definitions and methodologies described in this paper will enhance our ability to compare data from different research groups and different areas, in order to gain deeper insights into MIS 5e sea-level changes. Improving estimates of Last Interglacial sea-level is, in turn, a key to understanding the behavior of ice sheets in a warmer world

Let's Work and Play: ASLO ASM 2021 in Palma de Mallorca

[eng] Palma de Mallorca, where the "Med mingles with history" is a jewel in the Mediterranean, has all the ingredients of a beautiful and exciting cosmopolitan city. Located in the south‐west coast of Mallorca on the nostalgic Bay of Palma, the city is bordered to the north and west sides by the Serra de Tramuntana, the island's major mountain range and a UNESCO World Heritage site. Palma dates back to the 13th‐century Christian reconquest of the island, and to the Moors, Romans and Talayotic people before that. It is famous for the immense Cathedral "La Seu" (the geographic and historical heart of the city) built on a previous mosque. The Old city behind the cathedral is a maze of streets hinting at an Arab past. Aside from this historical heritage, the endless beaches, the nearby mountain range and picturesque coastlines (Fig. 1), Palma has vibrant public squares, bohemian neighborhoods, bars, shops, cafes, a variety of restaurants (more than 1000), offering local (Mallorquin and Spanish) and international cuisines, and creations by local and international chefs of prestige

Let's Work and Play: ASLO ASM 2021 in Palma de Mallorca

Following the pressing needs of the society for a sustainable future, amidst the human-influenced environmental changes, the theme of the ASM 2021 in Palma “Aquatic Sciences for a sustainable future: nurturing cooperation” was proposed. Underdeveloped to developed societies face different levels of sustainability problems in aquatic resources, and cooperation is a keyword in which relevant information is shared to find solutions. Basically, we learn from each other´s success and failures in managing sustainability problems. The theme will be reflected on the topics of the plenary sessions (e.g. “the future of seafood resources”, “the role of cooperation in addressing global challenges in aquatic ecosystems”, “linking the health of the oceans to humans”, “restoration of aquatic ecosystems”) and special sessions and workshops. The logo of the meeting depicts the theme (Fig. 1) where the reaching of the two hands symbolizes “cooperation”, sharing of information, which will take place in Palma (Mallorca) represented by the local traditional boat “Llaüt”. The Llaüt was traditionally used for fish trawling. However, nowadays it is considered a cultural heritage, a work of craftsmanship, and is not used any longer for professional use because of the emergence of motorized boats and increased population of beach-goers. As we thought and reflected of a meaningful theme, we also thought of our dynamic scientific and local committee team (Fig. 2) with broad expertise (from freshwater to marine) and excellent background to ensure a meaningful and successful ASM meeting in Palma. We hope you can join us in ASM Palma in 2021