Algunas especies del género "Conocybe fayod" que fructifican en los jardines y parques de la provincia de Madrid.

Se estudian macro y microscópicamente tres especies del género Conocybe Fayod, recolectadas en ambientes artificiales (jardines) en Madrid, son: C. cylindracea Maire & Kúhner t'xSing., C. laaea (Lange) Métrod y C. rickenii (J. Schaeffer) Kúhner, de los cuales la primera especie solo se conoce actualmente del Norte de Africa (Marruecos), y la última citada en Europa es nueva para el Catálogo micológico español

Union Games: Technological Unemployment

Given a production economy, we define a trade union game by considering strategic behavior on factor supplies. We refer to the Nash equilibria of this game as trade union equilibria. First we analyze situations under which unemployment of factors are supported as trade union equilibria. The degree of unemployment depends on technological conditions. In this line, we suggest a source of unemployment which differs from the usual sources provided in the related literature. Then, we state a limit result which shows that when the market power of trade unions decreases the corresponding sequence of trade union equilibria converges to the walrasian equilibrium, that is, to full employment of factors.Trade Union Games, unemployment, walrasian equilibrium, manipulability.

Environmental and climate evolution in the Southwest USA since the last interglacial deduced from the pollen record from Stoneman lake, Arizona

Long and continuous lake sedimentary records offer enormous potential for interpreting the paleoenvironmental histories of the past and for understanding how terrestrial environments might adapt in the context of current global warming. However, sedimentary records that contain multiple glacialinterglacial cycles are scarce in continental basins. An ~80 m sediment core was recently obtained from Stoneman Lake (STL), Arizona, containing a unique record of the last ~1.3 Ma. Here we show a detailed pollen study of the topmost ~10 m of the record, covering the last climatic cycle since the Last Interglacial period (MIS5-MIS1; last ~130,000 years ¼ 130 kyr), with the goal of broadening our knowledge of the paleoenvironmental history of the arid North American Southwest in the past. The STL pollen record shows that the MIS5e interglacial was the warmest period of the last 130 kyr. This is deduced by the abundance of pollen types from plants that today exist at lower elevations that occurred around the STL at that time. These include Pinus edulis and other associated low elevation thermophilous plants such as Juniperus, Ambrosia, Amaranthaceae, Asteraceae and Artemisia. Climate cooled rapidly and dramatically at the MIS5-4 boundary, which triggered a displacement of forest species towards lower elevation, causing P. ponderosa to occupy the study area. MIS3 was characterized by relatively warmer climate conditions with 3 prominent climatic oscillations (MIS3a, b and c). The coldest conditions were reached during MIS2 (LGM), when a ~1000 m displacement towards lower elevations of the subalpine forest species relative to present is observed. This is deduced by the highest abundance of Picea (~20 e25%) and Abies in the STL record, indicating their occurrence in the study area.Warming during the last deglaciation is evidenced by a shift of vegetation towards higher altitudes and the development of a montane forest composed mainly of Pinus ponderosa and Quercus replacing the LGM subalpine species. This montane forest remained abundant throughout the Holocene. This study shows that orbital-scale climate changes (mainly precession and eccentricity changes) forced vegetation and lake-level oscillations, documenting that insolation had a main role in controlling environmental change in this area. Climate projections of enhanced warming predict that P. edulis and Juniperus forest species will occupy the study area in the near future.Spanish Government PRX18/00080 PRX21/00127 CGL2013-47038-R CGL2017- 85415-REuropean CommissionSpanish Government CGL2013-47038-R CGL2017- 85415-RJunta de Andalucia P-20-00059FEDER Projects B-RNM-144-UGR18UGR-FEDER B-RNM-144-UGR18Arizona TRIFresearch program 100265

Contribución al estudio de hongos que viven sobre materias fecales (1ª aportación)

Se estudian especies de hongos recolectadas sobre materias fecales, Myxomycetes, Ascomycetes y Basidiomycetes, comparándolas con otras especies que denominamos "subcoprofilas". Se describen macro y microscópicamente los taxones más interesantes. Resultan nuevas citas para el Catálogo micológico español 6 especies: Coprinus heterosetulosus Locquin, Coprinus patouillardii Quél., Coprinus poliomallus Romagnesi, Panaeolus cyanescens Berk. et Br., Psathyrella coprophila Watling y Psathyrella stercoraria (Kiihn. et Romag.) Moser

Applying A Methodology For Educating Students With Special Needs: A Case Study

The introduction of innovative educational technologies opens up new ways of interacting with students. We propose to exploit this potential to help in the education of children with special needs. We analyze the state of the art of tools supporting the teaching process, focusing on the omissions of existing research. We propose a new framework to help throughout the whole teaching process and describe its application to Proyecto Aprender (Learn Project), an educational resource targeting children with learning difficulties. Finally, we outline some conclusions and current/future research lines

A multiproxy database of western North American Holocene paleoclimate records

This research has been supported by the Directorate for Geosciences of the National Science Foundation (grant nos. AGS-1602105 and AGS-1903548).We thank the USGS John Wesley Powell Center for Analysis and Synthesis, which hosted a meeting that led to this synthesis effort. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the US government. We thank the original data generators who made their data available for reuse, and we acknowledge the data repositories for safeguarding these assets.Holocene climate reconstructions are useful for understanding the diverse features and spatial heterogeneity of past and future climate change. Here we present a database of western North American Holocene paleoclimate records. The database gathers paleoclimate time series from 184 terrestrial and marine sites, including 381 individual proxy records. The records span at least 4000 of the last 12 000 years (median duration of 10 725 years) and have been screened for resolution, chronologic control, and climate sensitivity. Records were included that reflect temperature, hydroclimate, or circulation features. The database is shared in the machine readable Linked Paleo Data (LiPD) format and includes geochronologic data for generating site-level time-uncertain ensembles. This publicly accessible and curated collection of proxy paleoclimate records will have wide research applications, including, for example, investigations of the primary features of oceanatmospheric circulation along the eastern margin of the North Pacific and the latitudinal response of climate to orbital changes. The database is available for download at https://doi.org/10.6084/m9.figshare.12863843.v1 (Routson and McKay, 2020).National Science Foundation (NSF) AGS-1602105 AGS-190354

The Reading Palaeofire Database: an expanded global resource to document changes in fire regimes from sedimentary charcoal records

This research has been supported by the Leverhulme Trust (grant no. RC-2018-023), the European Research Council (grant no. 694481), the German Research Foundation (grant no. FE-1096/6-1), the Swiss Government Excellence Postdoctoral Scholarships (grant no. FIRECO 2016.0310), the National Science Centre of Poland (grant no. 2015/17/B/ST10/01656), the SCIEX Scholarship Fund (grant no. PSPB-013/2010), and the Estonian Research Council (grant no. MOBJD313).Sedimentary charcoal records are widely used to reconstruct regional changes in fire regimes through time in the geological past. Existing global compilations are not geographically comprehensive and do not provide consistent metadata for all sites. Furthermore, the age models provided for these records are not harmonised and many are based on older calibrations of the radiocarbon ages. These issues limit the use of existing compilations for research into past fire regimes. Here, we present an expanded database of charcoal records, accompanied by new age models based on recalibration of radiocarbon ages using IntCal20 and Bayesian age-modelling software. We document the structure and contents of the database, the construction of the age models, and the quality control measures applied. We also record the expansion of geographical coverage relative to previous charcoal compilations and the expansion of metadata that can be used to inform analyses. This first version of the Reading Palaeofire Database contains 1676 records (entities) from 1480 sites worldwide. The database (RPDv1b – Harrison et al., 2021) is available at https://doi.org/10.17864/1947.000345.Leverhulme Trust RC-2018-023European Research Council (ERC) European Commission 694481German Research Foundation (DFG) FE-1096/6-1Swiss Government Excellence Postdoctoral Scholarships FIRECO 2016.0310SCIEX Scholarship Fund PSPB-013/2010Estonian Research Council MOBJD31