3,641 research outputs found
Observation of the anisotropy in arrival direction of Cosmic Rays with IceCube
The IceCube Neutrino Observatory is a kilometer-scale detector currently
under construction at the South Pole. In its final configuration the detector
will comprise 5160 Digital Optical Modules (DOMs) deployed on 86 strings
between 1.5-2.5 km deep within the ice. While still incomplete, the detector
has already recorded tens of billions of cosmic ray muons with a median energy
of 20 TeV. This large sample has been used to study the arrival direction
distribution of the cosmic rays. We report the observation of an anisotropy in
the cosmic rays arrival direction at two different angular scales. The observed
large scale anisotropy seems to be a continuation of similar structures
observed in the Northern Sky by several experiments. IceCube observes also
significant features on the angular scale of that
might be part of the larger scale structure
THE IMPACT OF CHILEAN FRUIT SECTOR DEVELOPMENT ON FEMALE EMPLOYMENT AND HOUSEHOLD INCOME
Modern fruit sector development in Chile led to agricultural employment for women, though usually only as temporary workers and often at a piece rate. Nonetheless, fruit sector employment offered women access to income and personal fulfillment previously lacking. This paper links the fruit sector to improving female and family economic welfare in rural Chile and changing gender relations. Using a unique longitudinal data set, we examine women's decisions regarding labor force participation and employment, their earnings and contributions to household income, and their attitudes toward employment to understand how new opportunities are changing women, their households, and the rural sector.Consumer/Household Economics, Labor and Human Capital,
Functions of cell surface galectin-glycoprotein lattices
Programmed remodeling of cell surface glycans by the sequential action of specific glycosyltransferases can control biological processes by generating or masking ligands for endogenous lectins. Galectins, a family of animal lectins with affinity for beta-galactosides, can form multivalent complexes with cell surface glycoconjugates and deliver a variety of intracellular signals to modulate cell activation, differentiation, and survival. Recent efforts involving genetic or biochemical manipulation of O-glycosylation and N-glycosylation pathways, as well as blockade of the synthesis of endogenous galectins, have illuminated essential roles for galectin-glycoprotein lattices in the control of biological processes including receptor turnover and endocytosis, host-pathogen interactions, and immune cell activation and homeostasis.Fil: Rabinovich, Gabriel Adrián. Consejo Nacional de Investigaciones CientÃficas y Técnicas. Instituto de BiologÃa y Medicina Experimental. Fundación de Instituto de BiologÃa y Medicina Experimental. Instituto de BiologÃa y Medicina Experimental; Argentina. Consejo Nacional de Investigaciones CientÃficas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de QuÃmica Biológica de la Facultad de Ciencias Exactas y Naturales. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de QuÃmica Biológica de la Facultad de Ciencias Exactas y Naturales; ArgentinaFil: Toscano, Marta Alicia. Consejo Nacional de Investigaciones CientÃficas y Técnicas. Instituto de BiologÃa y Medicina Experimental. Fundación de Instituto de BiologÃa y Medicina Experimental. Instituto de BiologÃa y Medicina Experimental; ArgentinaFil: Jackson, Shawn S.. University of Maryland; Estados UnidosFil: Vasta, Gerardo R.. University of Maryland; Estados Unido
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