The ecology and vocalisations of Banded Ground-Cuckoo Neomorphus radiolosus

El Cuco-Hormiguero Franjeado Neomorphus radiolosus es un ave rara, con problemas de conservación y cuya información sobre comportamiento y biología es deficiente. Cualquier dato adicional en este aspecto representa un instrumento importante para su conservación. Presentamos nuevos datos sobre su compartamiento en base a individuos observados en la Estación Biológica Jatun Sacha Bilsa, Esmeraldas, Ecuador, y la Reserva El Pangan, Nariño, Colombia

Some Relationships Between Dualities in String Theory

Some relationships between string theories and eleven-dimensional supergravity are discussed and reviewed. We see how some relationships can be derived from others. The cases of N=2 supersymmetry in nine dimensions and N=4 supersymmetry in four dimensions are discussed in some detail. The latter case leads to consideration of quotients of a K3 surface times a torus and to a possible peculiar relationship between eleven-dimensional supergravity and the heterotic strings in ten dimensions. Lecture given at "S-Duality and Mirror Symmetry", Trieste, June 1995.Comment: LaTeX 2.09, 12 page

New and noteworthy bird records from the east slope of the andes of colombia

We present significant new information on the distribution and status of 138 speciesof birds from the Andean East Slope of Colombia, based upon fieldwork between1990 and 2000 at 28 sites from central Dpto. Boyacá south to the Ecuador border.The first Colombian specimens of two species (Campylopterus villaviscensio, NapoSabrewing; Myrmotherula spodionota, Foothill Antwren) are reported. Three othertaxa (Ocreatus underwoodii addae, Piculus leucolaemus leucolaemus andMyiophobus p. phoenicomitra), the first two sometimes considered species distinctfrom known Colombian forms, represent first reports from Colombia based uponsightings or photographs; we add several more sightings of two species (Pipreolachlorolepidota, Iridisornis analis) previously known from single sight records. Inall, we report 35 species from the Andean East Slope of Colombia for the first time,southward range extensions on this slope for 47 species, northward extensions for21, upward or downward altitudinal extensions for 19, filling in of major discontinuitiesin distribution for 22; for ten of the latter, known from very few reports, new informationindicates a continuous distribution and far greater abundance than previouslysupposed. Range extensions and previously undiscovered populations of severalrestricted-range, Vulnerable, Near-threatened and Threatened species help toemphasize the importance of implementing conservation measures in the face of the increasing colonization pressures and insecurity. Based on our observations, wepresent several recommendations for setting conservation priorities in this rich butstill relatively poorly known region

How many bird and mammal extinctions has recent conservation action prevented?

Aichi Target 12 of the Convention on Biological Diversity (CBD) aims to ‘prevent extinctions of known threatened species’. To measure its success, we used a Delphi expert elicitation method to estimate the number of bird and mammal species whose extinctions were prevented by conservation action in 1993 - 2020 (the lifetime of the CBD) and 2010 - 2020 (the timing of Aichi Target 12). We found that conservation prevented 21–32 bird and 7–16 mammal extinctions since 1993, and 9–18 bird and 2–7 mammal extinctions since 2010. Many remain highly threatened, and may still become extinct in the near future. Nonetheless, given that ten bird and five mammal species did go extinct (or are strongly suspected to) since 1993, extinction rates would have been 2.9–4.2 times greater without conservation action. While policy commitments have fostered significant conservation achievements, future biodiversity action needs to be scaled up to avert additional extinctions

Labour power and labour process : contesting the marginality of the sociology of work

This article opens by suggesting that the decline in the sociology of work in the UK has been overstated; research continues, but in locations such as business schools. The continued vitality of the field corresponds with material changes in an increasingly globalized capitalism, with more workers in the world, higher employment participation rates of women, transnational shifts in manufacturing, global expansion of services and temporal and spatial stretching of work with advanced information communication technologies. The article demonstrates that Labour Process Theory (LPT) has been a crucial resource in the sociology of work, especially in the UK; core propositions of LPT provide it with resources for resilience (to counter claims of rival perspectives) and innovation (to expand the scope and explanatory power of the sociology of work). The article argues that the concept of the labour power has been critical to underpinning the sustained influence of labour process analysis

How many bird and mammal extinctions has recent conservation action prevented?

Aichi Target 12 of the Convention on Biological Diversity (CBD) contains the aim to ‘prevent extinctions of known threatened species’. To measure the degree to which this was achieved, we used expert elicitation to estimate the number of bird and mammal species whose extinctions were prevented by conservation action in 1993–2020 (the lifetime of the CBD) and 2010–2020 (the timing of Aichi Target 12). We found that conservation action prevented 21–32 bird and 7–16 mammal extinctions since 1993, and 9–18 bird and two to seven mammal extinctions since 2010. Many remain highly threatened and may still become extinct. Considering that 10 bird and five mammal species did go extinct (or are strongly suspected to) since 1993, extinction rates would have been 2.9–4.2 times greater without conservation action. While policy commitments have fostered significant conservation achievements, future biodiversity action needs to be scaled up to avert additional extinctions.https://wileyonlinelibrary.com/journal/conlMammal Research Institut

A História da Alimentação: balizas historiográficas

Os M. pretenderam traçar um quadro da História da Alimentação, não como um novo ramo epistemológico da disciplina, mas como um campo em desenvolvimento de práticas e atividades especializadas, incluindo pesquisa, formação, publicações, associações, encontros acadêmicos, etc. Um breve relato das condições em que tal campo se assentou faz-se preceder de um panorama dos estudos de alimentação e temas correia tos, em geral, segundo cinco abardagens Ia biológica, a econômica, a social, a cultural e a filosófica!, assim como da identificação das contribuições mais relevantes da Antropologia, Arqueologia, Sociologia e Geografia. A fim de comentar a multiforme e volumosa bibliografia histórica, foi ela organizada segundo critérios morfológicos. A seguir, alguns tópicos importantes mereceram tratamento à parte: a fome, o alimento e o domínio religioso, as descobertas européias e a difusão mundial de alimentos, gosto e gastronomia. O artigo se encerra com um rápido balanço crítico da historiografia brasileira sobre o tema

Comment on the proposed conservation of Columba roseogrisea Sundevall, 1857 (currently Streptopelia roseogrisea; Aves, COLUMBIDAE) (Case 3380)

Volume: 64Start Page: 192End Page: 19

A new subspecies of Three-striped Warbler Basileuterus tristriatus in the Serrania de San Lucas, Colombia

Volume: 135Start Page: 84End Page: 8

La culture d’entreprise et la recherche de l’« excellence »

Jusqu'à maintenant, l'analyse des changements récents dans les entreprises a généralement porté sur la question de savoir si les changements observés étaient conformes aux exhortations et aux normes de ceux qui prônent et décrivent ces changements. Cette approche empirique sceptique est sans doute valable, mais elle néglige un point important: l'importance de ces changements ne résulte pas simplement de leur adoption réelle, mais leur existence même suppose une vision de l'entreprise, une formulation des relations entre la gestion et le personnel, une conception de ce que sont les gestionnaires et les employés en tant que personnes sociales. Cette vision utilise: le langage de l'entreprise et les techniques des programmes de changement de culture pour définir les employés et leur travail par rapport à des entreprises post-bureaucratiques qui exercent leur contrôle en conciliant les individus avec les objectifs de l'entreprise. Les auteurs soulignent le lien entre cette vision et le contexte socio-politique du thatchérisme dans lequel elle survient.Recent changes in work organisations have so far been analyzed largely in terms of whether actual changes have measured up to the exhortations and prescriptions of those who promote and describe these changes. This sceptical empirical approach, though valuable, misses a major point: that the importance of these changes is not simply their empirical application, but their existence as a vision of the enterprise, a formulation of how managers and staff relate, a conception of what managers and employees are, as social individuals. This view uses the language of enterprise and the technology of culture change programmes to define employees and their work in terms of post-bureaucratic organizations where controls is achieved through the reconciliation of individual and corporate goals. The connections between these views and the Thatcherite political and social context within which they occur are underlined.Los recientes cambios en la organización del trabajo han sido extensamente analizados, sobre todo en términos de que los cambios actuales tienen que medir las exhortaciones y las prescripciones de aquellos que promueven y describen estos cambios. A este escéptico enfoque empírico, bien que de valor, le falta un punto mayor: que la importancia de estos cambios no es solamente su aplicación empírica, sino su existencia como una visión de la empresa, una formulación de como se relacionan los dirigentes y el personal, la concepción de qué son los dirigentes y el personal como individuos sociales. Esta visión usa el lenguage de la empresa y la tecnología de programas de cambio cultural para definir a los empleados y su trabajo en términos de organizaciones post-burocráticas donde el control se logra a través de la reconciliación de objetivos individuales y corporativos. Se subrayan las conexiones entre estas visiones y la política Tatcherista y el contexto social dentro del cual ellas se han llevado a cabo