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Concentrations and sources of an emerging pollutant, decabromodiphenylethane (DBDPE), in sewage sludge for land application

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Journal of Environmental Sciences 2012年第3期24卷 558-563页

作者： de la torre A Concejero M A Martínez M A Persistent Organic Pollutant Group Environment Department CIEMAT Avd. Complutense 22 Madrid 28040 Spain

The presence of an emerging brominated flame retardant, decabromodiphenylethane （DBDPE）, has been confirmed in Spanish sewage sludge. Thirty one samples from different urban wastewater treatment plants （WWTPs） were analyzed for this brominated flame retardant. DBDPE was positively identified and quantified in all samples at lower concentrations （47.0 ± 29.7 ng/g dry weight （dw）; mean ± SD） than those obtained for decabromodiphenyl ether （Bde-209）（290 ± 236 ng/g dw; mean ± SD） in a previous study. Influence of the WWTP characteristics in the pollutant levels was evaluated. No significant correlations were obtained between DBDPE concentrations and the population or sewage sludge production rate associated with the plants, neither wastewater treatment method. Sources of DBDPE in the sludge were also evaluated. Data indicate a common origin for DBDPE and Bde-209, which may be related to leaching processes during the use and disposal of consumer products containing these chemicals. Nevertheless, DBDPE contents are not influenced by industrial activities, which suggests that the infusion of DBDPE commercial mixture is not a source of this chemical into the environment, and indicates that the use of DBDPE in the Spanish industry is still low compared to deca-Bde.

关键词： decabromodiphenylethane polybrominated diphenyl ethers wastewater treatment plants sewage sludge

Bird habitat preferences drive hemoparasite infection in the Neotropical region

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Integrative Zoology 2021年第5期16卷 755-768页

作者： Gabriel Massaccesi de la torre Karla Magalhães CAMPIÃO Biological Interactions Departamento de ZoologiaUniversidade Federal do ParanáCuritibaBrazil Programa de Pós-graduação em Ecologia e Conservação Universidade Federal do ParanáCuritibaBrazil

The role that the environment plays in vector-borne parasite infection is one of the central factors for understanding disease *** assessed how Neotropical bird foraging strata and habitat preferences determine infection by parasites of the genera Haemoproteus,Plasmodium,Leucocytozoon,and Trypanosoma and filarioids,and tested for phylogenetic signal in these host-parasite *** performed extensive searches of the scientific literature and created a database of hemoparasite *** collected data on host body mass,foraging strata,habitat preference,and migratory status,and tested if host ecological traits predict each hemoparasite occurrence and prevalence using a phylogenetic Bayesian *** of Plasmodium tend to infect birds from tropical forests while birds from altitudinal environments are likely to be infected by species of *** probability of a bird being infected by filarioid or Trypanosoma is higher in lowland *** species that occur in anthropic environments and dry habitats of tropical latitudes are more susceptible to infection by species of *** foraging strata is also influential and bird species that forage in the mid-high and canopy strata are more prone to infection by species of Haemoproteus and *** also identified phylogenetic signal for host-parasite associations with the probability of infection of Neotropical birds by any hemoparasite being more similar among more closely related *** provided a useful framework to identify environments that correlate with hemoparasite infection,which is also helpful for detecting areas with potential suitability for hemoparasite infection due to land conversion and climate change.

关键词： habitat use haemosporidians host-parasite interaction migratory birds prevalence

The Role of the Solar Cycle in the Relationship Between the North Atlantic Oscillation and Northern Hemisphere Surface Temperatures

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Advances in Atmospheric Sciences 2007年第2期24卷 191-198页

作者： laura de la torre Luis GIMENO Juan Antonio AEL Raquel NIETO Universidad de Vigo Facultad de Ciencias de Ourense 32004OurenseSpain

The North Atlantic Oscillation （NAO） is one of the leading modes of climate variability in the Northern Hemisphere. It has been shown that it clearly relates to changes in meteorological variables, such as surface temperature, at hemispherical scales. However, recent studies have revealed that the NAO spatial pattern also depends upon solar forcing. Therefore, its effects on meteorological variables must vary depending upon this factor. Moreover, it could be that the Sun affects climate through variability patterns, a hypothesis that is the focus of this study. We find that the relationship between the NAO/AO and hemispheric temperature varies depending upon solar activity. The results show a positive significant correlation only when solar activity is high. Also, the results support the idea that solar activity influences tropospheric climate fluctuations in the Northern Hemisphere via the fluctuations of the stratospheric polar vortex .

关键词： solar activity North Atlantic Oscillation Arctic Oscillation Northern Hemisphere surface temperature

Modelling of compacted graphite cast iron solidification-Discussion of microstructure parameters

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China Foundry 2020年第2期17卷 144-149页

作者： Jacques lacaze Urko de la torre Jon Sertucha Anna Regordosa Centre Inter-universitaire de Recherche et d’Ingénierie des Matériaux(CIRIMAT) Universitéde ToulouseToulouseFrance Fundación AZTERlaN DurangoSpain

A melt maintained for hours in a press pour unit allowed the following changes over time from spheroidal graphite to compacted graphite iron by casting thermal cups at regular time *** provided extensive experimental information for checking the possibility of simulating solidification of compacted graphite irons by means of a microstructure modelling *** solidification,compacted graphite develops very much as lamellar graphite but with much less *** this basis,a simulation of the thermal analysis records was developed which considers solidification proceeding in a pseudo binary Fe-C *** simulated curves were compared with the experimental ones obtained from three representative alloys that cover the whole microstructure change during the holding of the *** most relevant result is that the parameter describing branching capability of graphite is the most important for reproducing the minimum eutectic temperature and the recalescence which are so characteristic of the solidification of compacted graphite cast irons.

关键词： compacted graphite irons thermal analysis stable eutectic metastable eutectic simulation

Risk factors from HBV infection among blood donors:A systematic review

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Asian Pacific Journal of Tropical Biomedicine 2016年第4期6卷 344-349页

作者： Giuseppe la torre Rosella Saulle department of Public Health and Infectious Diseases "Sapienza" University of Rome

Objective:To perform a systematic review of the scientific literature to identify risk factors associated with hepatitis B viruses(HBV) infection among blood ***:The literature search was carried out on Pub Med and Scopus databases using the keywords "risk factors" "HBV infection" and "blood donors".No date or language restrictions were applied to the *** literature review was completed in *** selection process and the reporting of the review followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses *** Newcastle Ottawa scale was using to evaluate the quality of each single primary ***:Out of 172 records resulted in the search,5 papers were included in the final analysis because they are within acceptance *** of the selected studies were cross-sectional and three of them were case-control *** association resulted with some demographic and behavioral risk factors,such as marital status,dental treatment/procedure history,no stable relationship or multiple partners and family history of HBV ***:The systematic review performed encourages to conduct further research among blood donors in order to fully understand risk factors among donors in more extensive thus to provide valuable information about surveillance.

关键词： Risk factors HBV Infection Blood donors Systematic review

The roles of anurans in antagonistic networks are explained by life-habit and body-size

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Integrative Zoology 2022年第4期17卷 530-542页

作者： Amanda Caroline DUDCZAK Gabriel Massaccesi de la torre Lorena EUCLYdeS Karla Magalhães CAMPIÃO department of Zoology Federal University of ParanáCuritibaBrazil Postgraduate Program in Zoology Federal University of ParanáCuritibaBrazil Postgraduate Program in Ecology and Conservation Federal University of ParanáCuritibaBrazil

Interactions among living beings are the structuring basis of ecosystems,and studies of networks allow us to identify the patterns and consistency of such *** networks reflect the energy flow of communities,and identifying network structure and the biological aspects that influence its stability is crucial to understanding ecosystem *** used antagonistic anuran interactions-predator-prey and host-parasite-to assess structural patterns and to identify the key anuran species structuring these *** tested whether anuran body-size and life-habit are related to their roles in these *** collected individuals of 9 species of anurans from an area of the Atlantic Forest in Brazil and identified their prey and helminth *** used network(modularity,specialization,and nestedness)and centrality metrics(degree,closeness,and betweenness)to identify the role of anuran species in both *** then evaluated whether anuran body-size or life-habit were related to anuran centrality using generalized linear mixed *** networks formed specialized interactions in compartments composed by key species from different *** our networks,anurans with rheophilic and cryptozoic habit are central in predator-prey networks,and those with larger body size and arboreal and cryptozoic habit in the host-parasite *** study represents a step towards a better understanding of the influential factors that affect the structure of anuran antagonist networks,as well as to recognize the functioning roles of anuran species.

关键词： diet disease food web helminth infection network centrality

The ρ-variation of the Hermitian Riesz Transform

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Acta Mathematica Sinica,English Series 2010年第10期26卷 1827-1838页

作者： Raquel CRESCIMBENI Francisco Javier MARTíN-REYES Alberto de la torre José L.torreA departamento de Matemática Universidad Nacional del Comahue Facultad de Economía y Administración departamento de Análisis Matemático Facultad de Ciencias Universidad de Málaga Facultad de Ciencias Universidad Autónoma de Madrid ICMAT-CSIC-UAM-UCM-UC3M

In this paper we prove the behaviour in weighted Lp spaces of the oscillation and variation of the Hilbert transform and the Riesz transform associated with the Hermite operator of dimension 1. We prove that this operator maps LP（R, w（x）dx） into itself when w is a weight in the Ap class for 1 〈 p 〈 ∞. For p = 1 we get weak type for the A1 class. Weighted estimated are also obtained in the extreme case p = ∞.

关键词： Oscillation-p-variation-singular integral-Hermite operator

Low-power SiPM readout BETA ASIC for space applications

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Nuclear Science and Techniques 2024年第3期35卷 153-169页

作者： Anand Sanmukh Sergio Gómez Albert Comerma Joan Mauricio Rafel Manera Andreu Sanuy daniel Guberman Roger Catala Albert Espinya Marina Orta Oscar de la torre David Gascon departament de Física Quàntica i Astrofísica(FQA) Institut de Ciències del Cosmos(ICCUB)Universitat de Barcelona(UB)08028 BarcelonaSpain Institut d’Estudis Espacials de Catalunya(IEEC) 08034 BarcelonaSpain Electronics department Serra Hunter fellow at Polytechnic University of Catalonia(UPC)08019 BarcelonaSpain

The BETA application-specific integrated circuit(ASIC)is a fully programmable chip designed to amplify,shape and digitize the signal of up to 64 Silicon photomultiplier(SiPM)channels,with a power consumption of approximately~1 mW/*** to its dual-path gain,the BETA chip is capable of resolving single photoelectrons(phes)with a signal-to-noise ratio(SNR)>5 while simultaneously achieving a dynamic range of~4000 ***,BETA can provide a cost-effective solution for the readout of SiPMs in space missions and other applications with a maximum rate below 10 *** this study,we describe the key characteristics of the BETA ASIC and present an evaluation of the performance of its 16-channel version,which is implemented using 130 nm *** ASIC also contains two discriminators that can provide trigger signals with a time jitter down to 400 ps FWHM for 10 *** linearity error of the charge gain measurement was less than 2%for a dynamic range as large as 15 bits.

关键词： Radiation detectors Silicon photomultipliers Photon sensors Front-end electronics Mixed-mode ASICs Space technology

Wireless capsule endoscopy: Perspectives beyond gastrointestinal bleeding

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World Journal of Gastroenterology 2014年第42期20卷 15664-15673页

作者： Eduardo Redondo-Cerezo Antonio Damián Sánchez-Capilla Paloma de la torre-Rubio Javier de Teresa Endoscopy Unit Department of Gastroenterology University Hospital Virgen de Las Nieves department of Gastroenterology University Hospital Virgen de Las Nieves

Wireless capsule endoscopy(CE) is a technology developed for the endoscopic exploration of the small bowel. The first capsule model was approved by the Food and Drug Administration in 2001, and its first and essential indication was occult gastrointestinal(GI) bleeding. Over subsequent years, this technology has been refined to provide superior resolution, increased battery life, and capabilities to view different parts of the GI tract. Indeed, cases for which CE proved useful have increased significantly over the last few years, with new indications for the small bowel and technical improvements that have expanded its use to other parts of the GI tract, including the esophagus and colon. The main challenges in the development of CE are new devices with the ability to provide therapy, air inflation for a better vision of the small bowel, biopsy sampling systems attached to the capsule and the possibility to guide and move the capsule with an external motion control. In this article we review the current and new indications of CE, and the evolving technological changes shaping this technology, which has a promising potential in the coming future of gastroenterology.

关键词： Wireless capsule endoscopy Obscure gastrointestinal bleeding Small bowel tumors Colon capsule endoscopy Esophageal capsule endoscopy