First record of Dysschema sacrifica (Hübner, [1831]) on Soybean (Glycine max (L.) Merr) (Lepidoptera: Erebidae, Arctiinae)

The presence of Dysschema sacrifica (Hübner, [1831]) on soybean (Glycine max (L.) Merr) is reported for the first time. Larvae of this species were found consuming soybean leaves in soybean fields within Córdoba province,Argentina, and were able to complete their life cycle. Characteristics of adults and larvae are provided for rapid identification on the field. Due to the large distribution of this species in the region where soybean is more intensively cultivated in South America, we conclude that D. sacrifica is a potential soybean pest. Further studies on infestation frequency, damage levels and control by natural enemies are needed.KEY WORDS: Lepidoptera, Dysschema sacrifica, soybean, pest, Argentina.Fil: González, Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Centro de Investigaciones Entomológicas de Córdoba; ArgentinaFil: Beccacece, Hernán Mario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones Biológicas y Tecnológicas. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Instituto de Investigaciones Biológicas y Tecnológicas; Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales. Centro de Investigaciones Entomológicas de Córdoba; Argentin

Don't Ask Me If You Will Not Listen: The Dilemma of Participative Decision Making.

We study the effect of participative decision making in an experimental principalagent game, where the principal can consult the agent’s preferred option regarding the task to be undertaken in the final stage of the game. We show that consulting the agent was beneficial to principals as long as they followed the agent’s choice. Ignoring the agent’s choice was detrimental to the principal as it engendered negative emotions and low levels of transfers. Nevertheless, the majority of principals were reluctant to change their mind and adopt the agent’s proposal. Our results suggest that the ability to change one’s own mind is an important dimension of managerial success.organizational behavior, participative decision making, principal-agent model

The flat limit of three dimensional asymptotically anti-de Sitter spacetimes

In order to get a better understanding of holographic properties of gravitational theories with a vanishing cosmological constant, we analyze in detail the relation between asymptotically anti-de Sitter and asymptotically flat spacetimes in three dimensions. This relation is somewhat subtle because the limit of vanishing cosmological constant cannot be naively taken in standard Fefferman-Graham coordinates. After reformulating the standard anti-de Sitter results in Robinson-Trautman coordinates, a suitably modified Penrose limit is shown to connect both asymptotic regimes.Comment: 11 pages revtex fil

Towards a bulk description of higher spin SYK

We consider on the bulk side extensions of the Sachdev--Ye--Kitaev (SYK) model to Yang--Mills and higher spins. To this end we study generalizations of the Jackiw--Teitelboim (JT) model in the BF formulation. Our main goal is to obtain generalizations of the Schwarzian action, which we achieve in two ways: by considering the on-shell action supplemented by suitable boundary terms compatible with all symmetries, and by applying the Lee--Wald--Zoupas formalism to analyze the symplectic structure of dilaton gravity. We conclude with a discussion of the entropy (including log-corrections from higher spins) and a holographic dictionary for the generalized SYK/JT correspondence.Comment: 42 pages; v2: Typos correcte

Revisiting the asymptotic dynamics of General Relativity on AdS3_3

The dual dynamics of Einstein gravity on AdS$_3$ supplemented with boundary conditions of KdV-type is identified. It corresponds to a two-dimensional field theory at the boundary, described by a novel action principle whose field equations are given by two copies of the "potential modified KdV equation". The asymptotic symmetries then transmute into the global Noether symmetries of the dual action, giving rise to an infinite set of commuting conserved charges, implying the integrability of the system. Noteworthy, the theory at the boundary is non-relativistic and possesses anisotropic scaling of Lifshitz type.Comment: 18 page

Correccions menors a epígrafs de Sa Carrotja

En aquesta contribució presentam els resultats complementaris de les nostres observacions sobre les inscripcions provenents de la zona de Sa Carrotja (Ses Salines, Illes Balears) en forma de correccions menors a algunes edicions que no havien estat revisades des d’Emil Hübner i Cristofol Veny.In this contribution, we show the complemental results of our observations about the inscriptions coming from the area called Sa Carrotja (Ses Salines, Balearic Islands) as minor corrections to some editions never reviewed from the times of Emil Hübner and Cristofol Ven

Real Effort, Real Leisure and Real-time Supervision: Incentives and Peer Pressure in Virtual Organizations.

We propose a novel approach to the analysis of organizations by developing a computerized platform that reproduces relevant features of existing organizations such as real-effort tasks and real-leisure alternative activities (Internet). In this environment, we find strong incentives effects as organizations using individual incentives significantly outperform those relying on team incentives. Combining real-time peer monitoring with team incentives, we report striking evidence of positive peer effects as production increases by 50% and Internet usage decreases by 54% compared with organizations using team incentives alone. Peer monitoring allows virtual organizations using team incentives to perform as well as those using individual incentives. However, the positive effect of peer monitoring does not apply to low performers.team incentives, free-riding, monitoring, peer pressure, virtual organization

Fermento natural de leche: efecto de su empleo sobre la calidad de quesos de leche de oveja

La fabricación de queso es esencialmente un proceso de deshidratación de la leche cuyo resultado final depende del tiempo de coagulación, tipo de fermento y período de maduración. La combinación de estos factores da lugar a una gran variedad de quesos, los que resultan de las diferentes técnicas empleadas en relación a los aspectos mencionados. El fermento es un cultivo de microorganismos cuyo crecimiento en la leche produce ácido láctico a partir de lactosa, acidificando el medio. Además durante la maduración del queso las enzimas bacterianas del inóculo utilizado intervendrán degradando los diferentes componentes de la leche liberando precursores de sustancias responsables de la textura, sabor y aroma del queso. Los fermentos utilizados pueden ser naturales preparados artesanalmente o comerciales seleccionados elaborados industrialmente. Se denominan naturales a aquellos elaborados a partir de la leche ordeñada y cobran especial interés cuando los volúmenes a procesar son pequeños. Su principal ventaja es que permiten aprovechar la ecología zonal bacteriana en la producción de un queso con características particulares, que puede reconocerse por su origen y que presenta características únicas eirrepetibles. El objetivo de este trabajo es evaluar la aptitud quesera de un fermento natural elaborado a partir de la leche de oveja cruza Frisona x Texel proveniente del tambo ovino de la Faculta de Agronomía de la Universidad de Buenos Aires (FAUBA). Para ello se analizaron sólidos totales y características organolépticas de quesos elaborados con fermento natural y se las contrastó con las de quesos elaborados con fermentos seleccionados comerciales. Los resultados del análisis de sólidos totales en quesos no mostraron diferencias significativas entre tratamientos, sin embargo la evaluación sensorial indicó, entre los atributos más destacables, que los quesos elaborados con fermento de leche tuvieron mayor intensidad de olor a oveja, aroma a manteca y leche cocida, sabor más picante y textura más untuosa que los elaborados con fermento comercial. En conclusión estos resultados sugieren que los atributos descriptos dan cuenta de un producto de características sensoriales distintivas. Esto indica la influencia diferencial que tuvo el fermento natural utilizado sobre las características sensoriales de los quesos a través de las enzimas aportadas por las bacterias durante el proceso de maduración