A comparison of three data-poor stock assessment methods for the pink spiny lobster fishery in Mauritania

Several data-poor stock assessment methods have recently been proposed and applied to data-poor fisheries around the world. The Mauritanian pink spiny lobster fishery has a long history of boom and bust dynamics, with large landings, stock collapse, and years-long fishery closures, all happening several times. In this study, we have used catch, fishing efforts, and length-frequency data (LFD) obtained from the fishery in its most recent period of activity, 2015–2019, and historical annual catch records starting in 2006 to fit three data-poor stock assessment methods. These were the length-based Bayesian (LBB) method, which uses LFD exclusively, the Catch-only MSY (CMSY) method, using annual catch data and assumptions about stock resilience, and generalised depletion models in the R package CatDyn combined with Pella-Tomlinson biomass dynamics in a hierarchical inference framework. All threemethods presented the stock as overfished. The LBB method produced results that were very pessimistic about stock status but whose reliability was affected by non-constant recruitment. The CMSY method and the hierarchical combination of depletion and Pella-Tomlinson biomass dynamics produced more comparable results, such as similar sustainable harvest rates, but both were affected by large statistical uncertainty. Pella-Tomlinson dynamics in particular demonstrated stock experiencing wide fluctuations in abundance. In spite of uncertain estimates, a clear understanding of the status of the stock as overfished and in need of a biomass rebuilding program emerged as management-useful guidance to steer exploitation of this economically significant resource into sustainability.info:eu-repo/semantics/publishedVersio

Restricción del crecimiento intrauterino como factor de riesgo para malformaciones congénitas

Indexación: ScieloAntecedentes: La restricción del crecimiento intrauterino (RCIU) se estima que está presente en el 5% de los nacimientos y es la manifestación de procesos aberrantes que impiden el desarrollo normal del feto. Objetivos: Estimar la frecuencia de esta patología en la maternidad del Hospital Clínico de la Universidad de Chile. Obtener la tasa prevalencia al nacimiento de malformaciones congénitas (MFC) y comparar la frecuencia en recién nacidos pequeños (PEG) con los adecuados (AEG) y grandes (GEG) para la edad gestacional. Método: Se estudian todos los nacimientos, vivos y mortinatos, ocurridos entre enero de 1997 a diciembre de 2008, contenidos en la base de datos del ECLAMC (Estudio Colaborativo Latino Americano de Malformaciones Congénitas) desde 1969 a la fecha. Se excluyen los recién nacidos con malformaciones como hidrocefalia, anencefalia e hidrops, que por sus características dificultan la posibilidad de clasificación en PEG, AEG o GEG. Resultados: 10,1% de los nacimientos del período eran PEG. Entre los nacidos vivos 10% fueron PEG, mientras que 33,5% de los mortinatos eran PEG (p<0,05). Eran malformados el 12,9% de los PEG, 8,5% de los AEG y 9,3% de los GEG (p<0,05). La tasa global de malformaciones fue de 9,5%; en NV el 9,4% y en mortinatos el 33%. Conclusión: El RCIU es un factor que aumenta el riesgo de mortalidad fetal tardía y de presentar malformaciones congénitas.Background: Fetal growth restriction (FGR) is the result of anomalies that prevent the normal development of the fetus, it is present in about the 5% of births. Objectives: To estímate the frequency of FGR in the Clini-cal Hospital of the University of Chile. To estímate the congenital malformation prevalence rate at birth and compare it among small (SGE), adequate (AGE) and large (LGE) newborns according their gestational age. Methods: All live births and stillbirths included in the ECLAMC (Estudio Colaborativo Latino Americano de Malformaciones Congénitas) registered from January 1997 and December 2008 were considered. Newborns with congenital malformations that modified per se the size of the child, like hydrocephaly anencephaly and hydrops were excluded. Results: 10.1% of newborns were SGE. Among live births 10% were SGE instead of the 33.5% found in stillbirths (p<0.05). Congenital malformation rate at birth was 12.9% in SGE, 8.5% in AGE and 9.3% in LGE newborns (p<0.05). The global congenital malformation prevalence rate at birth was 9.5%; 9.4% in live newborns and 33% in stillbirth. Conclusión: The FGR increase the risk of late fetal mortality and congenital anomalies.http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-75262009000600008&nrm=is

Admission Control Policies in Multiservice Cellular Networks: Optimum Configuration and Sensitivity

Abstract. We evaluate different call admission control policies in various mul-tiservice cellular scenarios. For each of the studied policies we obtain the maximum calling rate that can be offered to the system to achieve a given QoS objective defined in terms of blocking probabilities. We propose an optimiza-tion methodology based on a hill climbing algorithm to find the optimum con-figuration for most policies. The results show that policies of the trunk reserva-tion class outperform policies that produce a product-form solution and the im-provement ranges approximately between 5 and 15 % in the scenarios studied.

HIRAYA

Hiraya is a sole proprietorship business founded in February 2020 by Jan Marc Portal, an ABM student in DLSU-SHS. Its mission is to provide the community with pouch bags that feature sustainability, affordability, and durability, promoting the Philippines’ indigenous designs using locally sourced materials such as Abaca and cotton canvas. Hiraya’s vision is to create a convenient and practical experience for the general lifestyle of the people by catering local products. The owner formed a business venture with his co-students in the ABM Strand, namely: Aeriel Punzalan (operations), Jarvis Servino (financial), Katriona Ureta (marketing), Jin Ha Kim (human resource), and Jiro Mhaye Salayo (advertising). The officers possess individual skills related to their departments, such as leadership, project management, and marketing, contributing to the development of Hiraya. The business took the opportunity to sell products through the online platform, reaching millennials and Gen-Z as its target market. The business’s location was strategically placed in Laguna. The venture considers itself to be different from its competitors as it features an accented Abaca design inspired by local Kalinga tattoo artists in its products. In terms of the initial capital, the business had invested Php 31,500 to operate. The capital was able to produce 120 bags, costing Php 349 each (39.6% mark-up). Once the break-even is reached, Hiraya intends to diversify its products by putting another Php 27,488 for capital. Hiraya plans to continually expand in the future to remain true to its cause in helping indigenous people as part of its social responsibility

Presencia y uso de internet en las redacciones de los diarios vascos y navarros

Este estudio analiza el grado de penetración de Internet en las redacciones de los diarios vascos y navarros con edición en la Web y estudia hasta qué punto la Red está modificando las rutinas profesionales de los periodistas. Para ello se dispone de los resultados obtenidos de una encuesta realizada tanto a los responsables como a los periodistas que trabajan en las redacciones electrónicas de los periódicos mencionados

Technological Aspects of the Production of Fructo and Galacto-Oligosaccharides. Enzymatic Synthesis and Hydrolysis

Fructo- and galacto-oligosaccharides (FOS and GOS) are non-digestible oligosaccharides with prebiotic properties that can be incorporated into a wide number of products. This review details the general outlines for the production of FOS and GOS, both by enzymatic synthesis using disaccharides or other substrates, and by hydrolysis of polysaccharides. Special emphasis is laid on technological aspects, raw materials, properties, and applications

A review on the contribution of crop diversification to Sustainable Development Goal 1 “No poverty” in different world regions

I am grateful to Professor Maggie Gill and Dr Leslie Lipper for initial discussions, to Dr Leslie Lipper for arranging the meetings with the experts at the Food and Agriculture Organization (FAO) and to the experts at FAO for the valuable discussions on the topic. I would also like to thank Kirsten MacSween for revising the English. This research has been funded by the UK Natural Environment Research Council (NERC), NE/N005619/1.Peer reviewedPublisher PD

Segundo Congreso Salesiano de Ciencia, Tecnología e Innovación para la Sociedad

La segunda edición del Congreso Salesiano de Ciencia, Tecnología e Innovación para la Sociedad, CITIS, realizado el 2 y 3 de diciembre de 2015 y organizado por la Universidad Politécnica Salesiana (sede Guayaquil), ofreció un espacio idóneo para la presentación, difusión e intercambio de importantes investigaciones (nacionales e internacionales) a los docentes investigadores y a la comunidad universitaria en general. Los trabajos recogidos en estas Memorias Académicas pertenecen a diferentes líneas de investigación del área de la Ingeniería: Telecomunicaciones, Automatización y Control, Procesos Industriales, Sistemas Eléctricos de Potencia, Telemática e Informática Aplicada, áreas de interés en esta segunda edición del CITIS. Cabe destacar que se evidencia la preocupación por la dimensión humana y social mediante el desarrollo responsable de la ciencia y la tecnología. La realización de este Congreso ha puesto en evidencia la importancia y pertinencia de la actividad investigativa que se genera en las universidades (en proyectos desarrollados por los docentes investigadores e, incluso, por los estudiantes de grado y posgrado), así como los altos niveles de compromiso académico y social

EMMA—mouse mutant resources for the international scientific community

The laboratory mouse is the premier animal model for studying human disease and thousands of mutants have been identified or produced, most recently through gene-specific mutagenesis approaches. High throughput strategies by the International Knockout Mouse Consortium (IKMC) are producing mutants for all protein coding genes. Generating a knock-out line involves huge monetary and time costs so capture of both the data describing each mutant alongside archiving of the line for distribution to future researchers is critical. The European Mouse Mutant Archive (EMMA) is a leading international network infrastructure for archiving and worldwide provision of mouse mutant strains. It operates in collaboration with the other members of the Federation of International Mouse Resources (FIMRe), EMMA being the European component. Additionally EMMA is one of four repositories involved in the IKMC, and therefore the current figure of 1700 archived lines will rise markedly. The EMMA database gathers and curates extensive data on each line and presents it through a user-friendly website. A BioMart interface allows advanced searching including integrated querying with other resources e.g. Ensembl. Other resources are able to display EMMA data by accessing our Distributed Annotation System server. EMMA database access is publicly available at http://www.emmanet.org