The Seventeenth Data Release of the Sloan Digital Sky Surveys: Complete Release of MaNGA, MaStar, and APOGEE-2 Data

This paper documents the seventeenth data release (DR17) from the Sloan Digital Sky Surveys; the fifth and final release from the fourth phase (SDSS-IV). DR17 contains the complete release of the Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) survey, which reached its goal of surveying over 10,000 nearby galaxies. The complete release of the MaNGA Stellar Library accompanies this data, providing observations of almost 30,000 stars through the MaNGA instrument during bright time. DR17 also contains the complete release of the Apache Point Observatory Galactic Evolution Experiment 2 survey that publicly releases infrared spectra of over 650,000 stars. The main sample from the Extended Baryon Oscillation Spectroscopic Survey (eBOSS), as well as the subsurvey Time Domain Spectroscopic Survey data were fully released in DR16. New single-fiber optical spectroscopy released in DR17 is from the SPectroscipic IDentification of ERosita Survey subsurvey and the eBOSS-RM program. Along with the primary data sets, DR17 includes 25 new or updated value-added catalogs. This paper concludes the release of SDSS-IV survey data. SDSS continues into its fifth phase with observations already underway for the Milky Way Mapper, Local Volume Mapper, and Black Hole Mapper surveys

Prevención de lesiones cutáneas tras el uso de equipos de protección individual frente a infecciones

One of the major concerns of today's healthcare professionals who require the continued use of personal protective equipment (PPE), especially for the management of patients with COVID disease, is the protection and prevention of skin injuries that such equipment produces as an adverse event. This article reviews this affectation and its causes: skin occlusion, intra-dermal water evaporation, friction, pressure, humidity and chemical reactions. As conclusions, the prevention strategy includes addressing aspects such as washing and moisturizing the skin, preventing local pressure and preventing moistureUna de las grandes preocupaciones actuales que pade-cen los profesionales sanitarios que precisan del uso continuadodeequipos de protección individual (EPI),sobre todo para el manejo del paciente con enfermedad COVID,es la protección y prevención de las lesiones en piel que dichos equipos producencomo evento adverso. El presente artículo revisa esta afectación y sus causas: oclusión de la piel, evaporación del agua intradérmica, fricción, presión, humedad y reacciones químicas.Como conclusiones, la estrategia de prevención incluye abordar aspectos como el lavado e hidratación de la piel, prevención de la presión local y prevención de la humeda

Improvement of almond production using Bombus terrestris (Hymenoptera: Apidae) in Mediterranean conditions

Almond trees are one of the most important crops in the Balearic Islands. The pollination of almonds is limited to the activity of insects, and cross-pollination is necessary for fruit development. Currently, honey bees and wild bee populations are declining considerably due to multiple causes, such as the use of pesticides, diseases and habitat loss. An alternative to increase the almond production is the use of commercial pollinators. In this long-term (3 years) study, the effect of the introduction of Bombus terrestris colonies on almond production was evaluated in two orchards. Two experimental designs were carried out to study the best management of this pollinator. For 2 years, all bumble bee colonies were placed in the middle of the plot and during the last year, the bumble bee colonies were distributed homogenously in the plot. Fruit set and the foraging behaviour of bumble bees during the blossoming period was determined, and the effect of different environmental variables on the visitation rate of bumble bees was assessed by means of a generalized linear mixed model (GLMM). Moreover, for the first time, the spatial distribution of fruit set was evaluated. Our results show that fruit set was significantly higher in the fields where B. terrestris had been introduced than in the control plots. This increased production resulted in a positive economic balance for the farmer. Moreover, bumble bees showed to prefer trees in a southwest orientation that were close to their colony. The activity of bumble bees showed to be significantly influenced by wind speed (the higher the speed the more flowers are visited by B. terrestris) and time after flowering (visitation rate decreased with days after flowering). In order to improve its management and obtain the highest possible almond production, it is important to understand the activity and behaviour of this pollinator.The authors would like to thank farmers of Son Marrano and Son Pons to have allowed us to realize the field work in their farms, and Fons de Garantia Agrària i Pesquera de les Illes Balears (FOGAIBA) BIA 7/17 to had funded this experiment. Elsevier Language Editing Services for editing this manuscript. Also, to the reviewers and the editor for their comments with which the paper has improved. Special thanks to students of the Laboratory of Zoology for their collaboration in the field