334 research outputs found
The gastropod-symbiotic sea anemone genus Isosicyonis Carlgren, 1927 (Actiniaria : Actiniidae): a new species from the Weddell Sea (Antarctica) that clarifies the taxonomic position of the genus
A second species of the sea anemone genus Isosicyonis is described and illustrated from 16 specimens collected in the Weddell Sea (Antarctica) on the Polarstern cruises ANT XVII/3, ANT XXI/2 and ANT XXIII/8. Isosicyonis striata n. sp. is easily distinguishable externally from the other species of the genus Isosicyonis alba by its pattern: white longitudinal stripes on the column, oral disc, and tentacles. It is also distinguished by internal features including the retractor muscles, parietobasilar muscles, marginal sphincter muscles, number of mesenteries, and cnidae. The genus Isosycionis is currently only known from the Southern Ocean. Both species of Isosicyonis live in association with a gastropod, with a single sea anemone occupying almost the whole shell of its gastropod host. The description of this new species, and our re-examination of Isosicyonis alba, resolves the controversial higher taxonomic position of the genus, confirming its placement within the Endomyaria
A new species of Hormathia (Actiniaria, Hormathiidae) from the eastern Weddell Sea, Antarctica
A new species of sea anemone in the genus
Hormathia, is described and illustrated based on fortytwo specimens collected during the Polarstern cruises
ANT XV/3 and ANT XVII/3 in the Weddell Sea. The
main features of the new taxon are the crown of flattened
and hooked tubercles at the distal end of the scapus, the
regular arrangement of pointed tubercles along the column and the cnidom. The new species shares the pointed
tubercles, at least in the upper part of the scapus, with
two other species of Hormathia in the southern hemisphere: Hormathia spinosa Hertwig 1882 and H. pectinata Hertwig 188
New record of the sea anemone Kadosactis antarctica (Carlgren, 1928): re-description of an Antarctic deep-sea sea anemone, and a discussion of its generic and familial placement
Sagartiogeton antarcticus Carlgren, 1928 is an
Antarctic deep-sea species of sea anemone only known
from its holotype. The species has been assigned to the
genera Sagartiogeton and Kadosactis, and is currently
placed within the family Kadosactidae Riemann-Zu¨rneck, 1991. Kadosactis antarctica is re-described based
on 11 specimens collected during the cruise of the R/V
Polarstern ANT XIX/3 (ANDEEP-I) to the Scotia Sea
and off the South Shetland Islands (Antarctica). The
description includes a complete account of cnidae and
photographs. Because the mesogloea is thickened on the
aboral surface on the base of the tentacles, this feature
becomes a generic character of Kadosactis rather than a
differential specific character among the species of the
genus as previously proposed. Furthermore, the known
distribution of the species is enlarged to include the
southern branch of the Scotia Sea
Stephanthus antarcticus, a new genus and species of sea anemone (Actiniaria, Haloclavidae) from the South Shetland Islands, Antarctica
Stephanthus antarcticus gen. nov. et sp. nov. is
described and illustrated from six specimens collected
in the Antarctic Peninsula on the Polarstern cruises
ANT XV/3 and ANT XIX/3. The new genus is characterised by the absence of sphincter and basilar musculature, the presence of a single strong siphonoglyph with a
basal enlargement, distinct parietobasilar musculature,
tentacles without acrospheres, two cycles of six pairs
of mesenteries (only one of them perfect), and a deep
fosse with parapet; another remarkable feature is the absence of microbasic p-mastigophores. The new genus
shows characteristics of three families of soft-bottomdwelling sea anemones, namely Haloclavidae Verrill,
1899, Halcampoididae Appellöf, 1896, and Andresiidae
Stephenson, 1922. The generic characters of Stephanthus
gen. nov. are discussed and it is tentatively placed in the
family Haloclavidae
A New Species of Sea Anemone (Cnidaria: Anthozoa: Actiniaria) from Manus Basin Hydrothermal Vents, South-western Pacific
During the BIOACCESS Japanese cruises (1996 & 1998), active hydrothermalism and associated vent fauna were studied on the South-eastern Rift of Manus Basin (South-western Pacific). In the PACMANUS vent field, a conspicuous vent fauna was sampled, including an actinostolid sea anemone (Actiniaria) belonging to an undescribed genus and species. Pacmanactis hashimotoi gen. et spec. nov. is here described, and represents the 9th sea anemone reported from hydrothermal vents.Consejo Superior de Investigaciones Científicas 3P-BPD200
“Plan de negocios para la creación de una empresa proveedora de servicios de tecnología informática en la nube en el Distrito Metropolitano de Quito”
El concepto de computación en la nube es un tema aún muy poco explorado en el Ecuador. Sin embargo, con gran potencial tanto para los consumidores como para los proveedores del servicio. Es por ello que el presente trabajo de disertación pretende examinar las oportunidades de negocio que esta tecnología puede ofrecer, así como los beneficios para sus usuarios. Consiguiéndolo a través del análisis de viabilidad y planificación de negocios de una empresa dedicada a ofrecer servicios y soluciones en la nube ajustadas para el panorama local, dentro del Distrito Metropolitano de Quito. Para lo cual se ha realizado múltiples estudios que contribuyen con información de suma importancia para determinar la situación actual del país y de la industria de tecnología e información, es decir el escenario donde se va a desempeñarse la empresa, así como la madurez y potencial demanda del mercado. Datos que a su vez sirven como base para determinar las principales características del proyecto, las estrategias más adecuadas para añadir valor al negocio y para adecuarlo a la realidad de los clientes. Por último, se realiza un estudio financiero para determinar si la empresa tiene el potencial de generar utilidades económicas y ser rentable a largo plazo
Prediction of Grapevine Yield Based on Reproductive Variables and the Influence of Meteorological Conditions
Climate has a direct influence on crop development and final yield. The consequences of global climate change have appeared during the last decades, with increasing weather variability in many world regions. One of the derived problems is the maintenance of food supply in this unstable context and the needed changes in agricultural systems, looking for sustainable and adaptation strategies. The study was carried out from 2008 to 2017. Aerobiological data were obtained with a Lanzoni VPPS-2000 volumetric sampler, following the Spanish Aerobiological Network protocol. The pollen and flower production was studied on ten vines of the Godello grapevine cultivar. A HOBO Micro Station and a MeteoGalicia station were used to obtain meteorological information. We observed the detrimental effect of rain on airborne pollen presence, and we statistically corroborated the negative effect of high temperatures on fruit set and ripening. We developed an accurate multiple regression model to forecast the grape yield, applying a Spearman’s correlation test to identify the most influential variables. The use of aerobiological and meteorological studies for crop yield prediction has been widely used in different crops that suppose important engines for economy development. This enables growers to adapt their crop management and adjust the spent resourcesThis work was funded by Xunta de Galicia CITACA Strategic Partnership (Reference: ED431E 2018/07), the AGL2014-60412-R Economy and Competence Ministry of Spain Government project and the VITICAST 20190020007473 project of the Agriculture, Fisheries and Food Ministry of Spain Government. González-Fernández E. was supported by the Ministry of Sciences, Innovation and Universities (FPU grant FPU15/03343). Piña-Rey A. was supported by Xunta de Galicia Pre-doctoral Period Support Program (ED481A-2017/xxx). Fernández-González M. was supported by FCT (SFRH/BPD/125686/2016) through the HCOP-Human Capital Operational Program, financed by “Fundo Social Europeu” and “Fundos Nacionais do MCTESS
Analysis of obligations regarding cost calculation in spanish public administrations
El objetivo de este trabajo es realizar una revisión
de los intentos legisladores encaminados a establecer
la obligatoriedad del cálculo de costes en las administraciones
públicas. A pesar de los múltiples esfuerzos normativos,
la aplicación de la contabilidad de costes no se ha
generalizado en el ámbito del sector público, pues muy pocas
instituciones determinan sus costes. En la actualidad, se
está produciendo un gran impulso en la aplicación de esta
herramienta, debido a la exigencia de presentar un resumen
de costes en la memoria de las entidades pertenecientes
al sector público administrativo.El proyecto que financió este estudio es el siguiente: “Modelo de Contabilidad y Análisis de Costes para biobancos”,
financiado por la Red Nacional de Biobancos perteneciente al Instituto de Salud Carlos III (Número de Registro IN-0702-11
The moderating effect of management accounting systems on the relation between human capital and internationalization
En el actual entorno competitivo, acceder
con garantías a los mercados requiere el despliegue de diferentes
recursos organizativos. Uno de ellos puede ser la
presencia de un capital humano formado, dado que tiene la
capacidad para incrementar la productividad, establecer
lazos firmes con los clientes, buscar nuevos mercados o
interpretar correctamente los cambios que suceden en el
entorno. Ante esta perspectiva, la utilización de los sistemas
contables de gestión (SCG) se define en la literatura
como un recurso que puede potenciar la relación entre
estos factores; sin embargo, escasos estudios tratan de evidenciarlo
empíricamente. En una muestra de 123 organizaciones
del sector agroalimentario de Galicia (España) y el
norte de Portugal y mediante un análisis de regresión lineal
múltiple, los resultados revelan una influencia moderadora
de los SCG sobre la relación entre el capital humano y la internacionalización.
Además, corroboran la existencia de un
efecto directo y positivo del capital humano sobre el grado
de internacionalización de la empresa.El proyecto REAL (0149_REAL_1_P) es financiado con fondos FEDER por medio del programa operativo de Cooperación
Transfronteriza España-Portugal. Este documento recoge parte del trabajo realizado en los últimos dos años por un
equipo de investigadores eurorregional y multidisciplinar, en el seno de la Red REAL. Este proyecto es una iniciativa
puesta en marcha por diez instituciones de la Euro región Galicia – Norte de Portugal (Universidade de Trás-os-Montes
e Alto Douro, UTAD; Universidade do Minho, UMinho; Escuela Superior de Biotecnología de la Universidad Católica
Portuguesa; Instituto Politécnico de Viana do Castelo, IPVC; NERVIR (Asociación Empresarial de Vila Real); Universidad
de Vigo; Universidad de Santiago de Compostela; Centro Tecnolóxico da Carne, CETECA; Centro Tecnológico Nacional
de Conservación de Productos de Pesca - Organización de la asociación nacional de fabricantes de conserva de pescado y
marisco (ANFACO-CECOPESCA); Dirección Xeral de I+D+i, Conselleria de Economía e Industria de la Xunta de Galicia)
que tiene como misión el fomento de la capacidad innovadora de las empresas agroalimentarias de este territorio con el
desarrollo de una red de cooperació
New records on sea anemones (Anthozoa: Actiniaria) from hydrothermal vents and cold seeps
During several cruises carried out by the Ifremer (Institut français de recherche pour l’exploitation de
la mer) with the submersile “Nautile” at different hydrothermal sites and cold seeps, an important col lection of anthozoans - mainly actiniarians - was sampled. Additional material was collected by an
American cruise with the submersile “Alvin”. The goal of the present contribution is to describe part
of this actiniarian fauna inhabiting three chemoautotrophic sites, one of them in the Mid-Atlantic Rise
and the other two in the Eastern Pacific. A new genus and species of actinostolids is proposed after the
study of specimens collected at hydrothermal vents in the Guaymas Basin (East Pacific Rise, Gulf of
California, 27º00’N-111º24’W, 2020 m). Furthermore, some specimens collected in cold seeps along
the MAT (Middle America Trench, off Mexico, 18º21’-20°01’N 104º21’-106º17’W, 3354-3795 m) are
reported as Hadalanthus aff. knudseni. This material is discussed and compared with the existing type
material of H. knudseni Carlgren, 1956, and Tealidium jungerseni Carlgren, 1921. In addition, some
specimens of Maractis rimicarivora Fautin & Barber, 1999, were collected at hydrothermal vents of the
Mid Atlantic Ridge Snake Pit (23º22.9’N-44º55.8’W, 3490 m) site. This species is collected for the first
time after its original description at Trans-Atlantic Geotraverse (TAG, 26º08’N 44º49.6’W, 3650 m).
Some ecological remarks are given from in situ and video observation
- …