Modificaciones de la vegetación y del paisaje litoral del NW Ibérico en relación con los cambios climáticos ocurridos en la transición entre los estadios isotópicos 3 y 2. El depósito pleistoceno de Caamaño

XV lnternational A.P.L.E. Symposium of Palynolog

A Few Descriptive and Optimization Issues on the Material Flow at a Research-Academic Institution: The Role of Simulation

Lately, significant work in the area of Intelligent Manufacturing has become public and mainly applied within the frame of industrial purposes. Special efforts have been made in the implementation of new technologies, management and control systems, among many others which have all evolved the field. Aware of all this and due to the scope of new projects and the need of turning the existing flexible ideas into more autonomous and intelligent ones, i.e.: Intelligent Manufacturing, the present paper emerges with the main aim of contributing to the design and analysis of the material flow in either systems, cells or work stations under this new "intelligent" denomination. For this, besides offering a conceptual basis in some of the key points to be taken into account and some general principles to consider in the design and analysis of the material flow, also some tips on how to define other possible alternative material flow scenarios and a classification of the states a system, cell or workstation are offered as well. All this is done with the intentions of relating it with the use of simulation tools, for which these have been briefly addressed with a special focus on the Witness simulation package. For a better comprehension, the previous elements are supported by a detailed layout, other figures and a few expressions which could help obtaining necessary data. Such data and others will be used in the future, when simulating the scenarios in the search of the best material flow configurations

Avalanche of Bifurcations and Hysteresis in a Model of Cellular Differentiation

Cellular differentiation in a developping organism is studied via a discrete bistable reaction-diffusion model. A system of undifferentiated cells is allowed to receive an inductive signal emenating from its environment. Depending on the form of the nonlinear reaction kinetics, this signal can trigger a series of bifurcations in the system. Differentiation starts at the surface where the signal is received, and cells change type up to a given distance, or under other conditions, the differentiation process propagates through the whole domain. When the signal diminishes hysteresis is observed

Network Protein Interaction in the Link between Stroke and Periodontitis Interplay: A Pilot Bioinformatic Analysis

The clinical interaction between stroke and periodontitis has been consistently studied and confirmed. Hence, exploring potentially new protein interactions in this association using bioinformatic strategies presents potential interest. In this exploratory study, we conducted a protein–protein network interaction (PPI) search with documented encoded proteins for both stroke and periodontitis. Genes of interest were collected via GWAS database. The STRING database was used to predict the PPI networks, first in a sensitivity purpose (confidence cut-off of 0.7), and then with a highest confidence cut-off (0.9). Genes over-representation was inspected in the final network. As a result, we foresee a prospective protein network of interaction between stroke and periodontitis. Inflammation, pro-coagulant/pro-thrombotic state and, ultimately, atheroma plaque rupture is the main biological mechanism derived from the network. These pilot results may pave the way to future molecular and therapeutic studies to further comprehend the mechanisms between these two conditions

Studies on age determination and growth pattern of the wedge sole Dicologoglossa cuneata (Moreau, 1881) in the Spanish waters of the Gulf of Cadiz (southwest Iberian Peninsula)

The wedge sole Dicologoglossa cuneata (Moreau, 1881) is a typical coastal soleid which is considered as one of the main target species in the demersal fishery of Spain's southern Atlantic region. This paper presents a study on the growth pattern of wedge sole in the Gulf of Cadiz. Age was determined by observing and analysing whole otoliths (sagittae), thereby obtaining the mean lengths at age for males and females in the year 1993 (from 15-20.9 cm TL and 1-4 years for males; from 15.9-23.6 cm TL and 1-6 years for females). In addition, the growth parameters for both sexes were obtained according to the Von Bertalanffy equation: L∞ = 24 cm, K = 0.343 and t0 = -1.384 for males; L∞ = 27 cm, K = 0.296 and t0 = -1.520 for females (showing growth differences growth between the sexes). These were compared with results reported by other authors for other areas of the species's distribution range. Through the interpretation of the otolith and its edge, a sequence of annual rapid- and slow-growth rings was observed; otoliths with an opaque edge (rapid growth) showed the highest percentages in the period from May to October. Mean otolith diameters for each of the estimated ages were calculated, as well as the body length/otolith diameter relationship: a = -12.631 and b = 61.033 (r² = 0.70).La acedía Dicologoglossa cuneata (Moreau, 1881) es un soleido típicamente costero, considerado como una de las especies objetivo de las pesquerías demersales de la región suratlántica ibérica. En este trabajo se estudia el patrón de crecimiento de la acedía del golfo de Cádiz. La determinación de la edad se realizó mediante la lectura de otolitos enteros (sagitta), obteniéndose las tallas medias por clase de edad para machos y hembras del año 1993 (entre 15 y 20,9 cm de longitud total y de 1 a 4 años para machos; de 15,9 a 23,6 cm de longitud total y de 1 a 6 años para hembras). Por otra parte, se estimaron los parámetros de crecimiento para ambos sexos según la ecuación de Von Bertalanffy: L∞ = 24 cm, K = 0,343 y t0 = -1,384 para machos; L∞ = 27 cm, K = 0,296 y t0 = -1,520 para hembras, presentando ambos sexos un crecimiento diferente. Estos resultados se compararon con los obtenidos por otros autores en otras áreas del rango de distribución de la especie. Mediante la interpretación del otolito y su borde, se observa una sucesión anual de anillos de crecimiento lento, formados durante el periodo invernal, y otros de crecimiento rápido, que muestran los porcentajes más altos en el periodo de mayo a octubre. Se calcularon los diámetros de los anillos para cada una de las edades estimadas, así como la relación longitud total del pez - diámetro del otolito, obteniéndose una ecuación lineal en la que a = -12,631 y b = 61,033 (r² = 0,70).Instituto Español de Oceanografí

The nursery role of the Guadalquivir estuary for marine fish. A long-term ecological research

Trabajo presentado en el 23rd Biennial CERF Conference (Grand challenges in coastal and Estuarine Science: securin our future), celebrado en Portland (Oregón, US) del 8 al 12 de noviembre de 2015.N

Modelling the effect of environmental and anthropogenic factors on the abundance of early life-history stages of the European sardine in the Guadalquivir estuary

Estuarine coastal areas play an important role in the recruitment of some small pelagic sh populations mainly when stable salinity-gradients are present. Damming of these ecosystems results in major alterations in this natural hydrological regime. Therefore, changes in the marine/freshwater balance can result in services loss, like the nursery habitat estuaries provide to small pelagic sh, such as sardines. Our previous work showed that the main important recruitment of sardine occurs in spring when this water balance is more variable. However, the drivers of sardine recruitment and particularly the interactive effects of environmental (temperature, salinity, turbidity and winds) and anthropogenic (freshwater discharges) factors are largely unknown. We modelled these effects on the abundance of sardine larvae and juveniles in the Guadalquivir estuary, the most southwestern one in the Atlantic Europe. Sardine early stages tend to occur at the most seaward and more saline sampling site in our study area. The best selected models included the freshwater ow and the wind regimen (northern-southern component) as main drivers explaining their abundance. Freshwater input –tightly controlled by a dam– had a negative short-term effect on the abundance of juvenile sardines above a critical threshold. On top of this, the wind-speed variability in the northern-southern direction showed a clear linear effect: with strong northerly winds enhancing the sardine abundance in the Guadalquivir estuary. These results contribute to the knowledge of the recruitment process of the European sardine and eventually to implementing an ecosystem approach to its fishery in the Gulf of Cadiz