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Extra-pair paternity and antiparasitic defence

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Avian Research 2020年第4期11卷 391-397页

作者： Anders Pape Møller Jørgen Skavdal Søraker juan joséSoler Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering College of Life SciencesBeijing Normal UniversityBeijing 100875China Ecologie Systématique et Evolution UniversitéParis-SaclayCNRSAgroParisTech91405 OrsayFrance Centre for Biodiversity Dynamics Department of BiologyNorwegian University of Science and TechnologyHøgskoleringen 5No-7491TrondheimNorway Depto.Ecología Funcional y Evolutiva Estación Experimental de ZonasÁridasCtra.Sacramento S/NLa Cañada de San Urbano04120 AlmeríaSpain

Background:Extra-pair paternity(EPP)in birds provides benefits in terms of more offspring,and characteristics for maintenance of this behaviour have been the subject of *** are known to be transmitted during mating,especially when mating with multiple partners,and factors reducing this cost of multiple mating are ***,plumage brightness and colour intensity have been shown to be important traits to benefits from multiple mating as predicted by sexual *** aim of this study was to investigate the relationship between the rate of extra-pair paternity and the relative size of the uropygial gland at the interspecific level,as the uropygial gland is an exocrine gland hypothesized to produce antiparasitic substances and further identified to affect plumage *** of the expected benefits of large uropygial gland in scenarios of sexual selection,we predicted a positive correlation with ***:We collected information from the literature of uropygial gland size and frequency of extra-pair paternity of 60 avian species of different families and explored the predicted positive correlation between *** did so with means of comparative analyses that considered phylogenetic relationship as random factor and included body mass as *** used Markov chain Monte Carlo generalized linear mixed models that were weighted by number of nests used to estimate extra-pair ***:We detected a positive relationship between level of extra-pair paternity and uropygial gland size at an interspecific *** finding is consistent with the ***:We discuss the importance of this result in scenarios of sexual selection and argue that the detected relationship may have arisen by utilizing antiparasitic secretions through secondary sexual characters indicating parasite resistance.

关键词： Antiparasitic defence Costs of extra-pair paternity Microorganisms Uropygial gland Uropygial secretions

MMALE—A Methodology for Malware Analysis in Linux Environments

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Computers, Materials & Continua 2021年第5期67卷 1447-1469页

作者： joséJavier de Vicente Mohino Javier Bermejo Higuera juan Ramón Bermejo Higuera juan Antonio Sicilia Montalvo Manuel Sánchez Rubio joséJavier Martínez Herraiz Escuela Superior de Ingeniería y Tecnología Universidad Internacional de La RiojaLogroño26006La RiojaSpain Departamento de Ciencias de la Computación de la Escuela Politécnica Superior Universidad de Alcaláde HenaresAlcaláde HenaresMadridSpain

In a computer environment,an operating system is prone to malware,and even the Linux operating system is not an *** recent years,malware has evolved,and attackers have become more qualified compared to a few years ***,Linux-based systems have become more attractive to cybercriminals because of the increasing use of the Linux operating system in web servers and Internet of Things(IoT)*** is the most employed OS,so most of the research efforts have been focused on its malware protection rather than on other operating *** a result,hundreds of research articles,documents,and methodologies dedicated to malware analysis have been ***,there has not been much literature concerning Linux security and protection from *** address all these new challenges,it is necessary to develop a methodology that can standardize the required steps to perform the malware analysis in depth.A systematic analysis process makes the difference between good and ordinary malware ***,a deep malware comprehension can yield a faster and much more efficient malware *** order to address all mentioned challenges,this article proposed a methodology for malware analysis in the Linux operating system,which is a traditionally overlooked field compared to the other operating *** proposed methodology is tested by a specific Linux malware,and the obtained test results have high effectiveness in malware detection.

关键词： Malware analysis methodology analysis Linux malware IoT malware

Preparation and Characterization of Flexible, Transparent and Thermally Stable Aromatic Co-polyamides

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Chinese Journal of Polymer Science 2019年第2期37卷 136-141页

作者： josé Antonio Tec-Sánchez Andrés Iván Oliva Arias Manuel Aguilar-Vega juan Valerio Cauich-Rodríguez josé Luis Santiago-García Unidad de Materiales Centro de Investigación Científica de Yucatán A. C. Centro de Investigación y de Estudios Avanzados del IPN Unidad Mérida Departamento de Física Aplicada

Two aromatic co-polyamides were synthesized combining two diacid monomers containing bulky pendant groups, 5-(9,10-dihydro-9,10-ethanoanthracene-11,12-dicarboximido)isophthalic acid(DEAIA) and 5-tert-butylisophthalic acid(TERT), with 4,4′-(hexafluoroisopropylidene)dianiline(HFA) or 2,3,5,6-tetramethyl-1,4-phenylenediamine(Durene) by direct polycondensation. The structures of the obtained aromatic co-polyamides were confirmed by FTIR, Raman and 1 H-NMR. The co-copolyamide films, DHTH and DDTD, exhibited rms-roughness values between 0.94 and 1.60 nm, respectively. Moreover, they presented good thermal stability up to300 °C. Young's moduli of the co-polyamide films were between 4.1 and 4.3 GPa. X-ray diffraction results showed that the co-polyamide films were amorphous due to the incorporation of both bulky pendant groups, tert-butyl and dibenzobarrelene. The combination of bulky pendant groups provided intrinsically transparent co-polyamide films with a transmittance higher than 88% in the range of 400-780 *** to these outstanding film and optical properties, they are suggested to be flexible substrates in applications for solar cell and other portable electronic devices.

关键词： Co-polyamides Flexible films Transmittance Thermal stability Polycondensation

Simultaneous analysis of the intestinal parasites and diet through eDNA metabarcoding

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Integrative Zoology 2023年第3期18卷 399-413页

作者： Xabier CABODEVILLA Benjamín juan GÓMEZ-MOLINER Naiara ABAD María joséMADEIRA Department of Zoology and Animal Cell Biology Faculty of PharmacyUniversity of the Basque Country(UPV/EHU)AlavaSpain Instituto de Investigación en Recursos Cinegéticos(IREC)(CSIC-UCLM-JCCM) Ciudad RealSpain

Agricultural expansion and intensiﬁcation are having a huge impact on plant and arthropod diversity and abun-dance,affecting food availability for farmland ***ﬁcult food access,in turn,can lead to immunosuppression and a higher incidence of *** the studies designed to examine changes in the diet of birds and their par-asites,metabarcoding is proving particularly *** technique requires mini-barcodes capable of amplifying the DNA of target organisms from fecal environmental *** help to understand the impact of agricultural expansion on biodiversity,this study sought to design and identify mini-barcodes that might simultaneously as-sess diet and intestinal parasites from the feces of farmland *** capacity to identify diet and parasites of 2 existing and 3 newly developed mini-barcodes was tested“in silico”in relation to the behavior of a reference eukaryotic *** the newly designed mini-barcodes,MiniB18S_81 showed the higher taxonomic cover-age of eukaryotic taxa and a greater ampliﬁcation and identiﬁcation capacity for diet and parasite ***,when it was tested on fecal samples from 5 different steppe bird species,MiniB18S_81 showed high taxonomic resolution of the most relevant diet and parasite phyla,Arthropoda,Nematoda,Platyhelminthes,and Apicomplexa at the order ***,the mini-barcode developed emerges as an excellent tool to simultaneously provide detailed information regarding the diet and parasites of birds,essential for conservation and management.

关键词： biomonitoring broad-spectrum primers eukaryotic mini-barcodes fecal eDNA farmland birds parasitology

Altered blood-brain barrier permeability in rats with prehepatic portal hypertension turns to normal when portal pressure is lowered

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World Journal of Gastroenterology 2006年第9期12卷 1367-1372页

作者： Francisco Eizayaga Camila Scorticati juan P Prestifilippo Salvador Romay Maria A Fernandez josé L Castro Abraham Lemberg juan C Perazzo Laboratory of Portal Hypertension Department of Pathophysiology School of Pharmacy and BiochemistryUniversity of Buenos AiresBuenos AiresArgentina Catedra de Farmacología School of Pharmacy and Biochemistry University of Buenos Aires Buenos Aires Argentina Laboratory of Portal Hypertension Department of Pathophysiology School of Pharmacy and Biochemistry University of Buenos Aires Buenos AiresArgentina

AIM： To study the blood-brain barrier integrity in prehepatic portal hypertensive rats induced by partial portal vein ligation, at 14 and 40 dafer ligation when portal pressure is spontaneously normalized. METHODS： Adult male Wistar rats were divided into four groups： Group Ⅰ： Sham14d, sham operated; Group Ⅱ： PHil, portal vein stenosis, （both groups were used 14 days after surgery）; Group Ⅲ： Sham4od, Sham operated and Group Ⅳ： PH4od Portal vein stenosis （Groups Ⅱ and Ⅳ used 40 d afer surgery）. Plasma ammonia, plasma and cerebrospinal fluid protein and liver enzymes concentrations were determined. Trypan and Evans blue dyes, systemically injected, were investigated in hippocampus to study blood-brain barrier integrity. Portal pressure was periodically recorded. RESULTS： Forty days afer stricture, portal pressure was normalized, plasma ammonia was moderately high, and both dyes were absent in central nervous system parenchyma. All other parameters were reestablished. When portal pressure was normalized and ammonia level was lowered, but not normal, the altered integrity of blood-brain barrier becomes reestablished. CONCLUSION： The impairment of blood-brain barrier and subsequent normalization could be a mechanism involved in hepatic encephalopathy reversibility. Hemodynamic changes and ammonia could trigger blood-brain barrier alterations and its reestablishment.

关键词： Blood-brain barrier Rats Prehepatic portal hypertension

Combined cell-based therapy strategies for the treatment of Parkinson's disease:focus on mesenchymal stromal cells

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Neural Regeneration Research 2023年第3期18卷 478-484页

作者： Jannette Rodríguez-Pallares María García-Garrote juan A.Parga joséLuis Labandeira-García Laboratory of Cellular and Molecular Neurobiology of Parkinson´s Disease Research Center for Molecular Medicine and Chronic Diseases(CiMUS)IDISDepartment of Morphological SciencesUniversity of Santiago de CompostelaSantiago de CompostelaSpain Networking Research Center on Neurodegenerative Diseases(CIBERNED) MadridSpain

Parkinson’s disease is a neurodegenerative condition characterized by motor impairments caused by the selective loss of dopaminergic neurons in the substantia *** is an effective and well-tolerated dopamine replacement ***,levodopa provides only symptomatic improvements,without affecting the underlying pathology,and is associated with side effects after long-term ***-based replacement is a promising strategy that offers the possibility to replace lost neurons in Parkinson’s disease *** studies of transplantation of human fetal ventral mesencephalic tissue have provided evidence that the grafted dopaminergic neurons can reinnervate the striatum,release dopamine,integrate into the host neural circuits,and improve motor *** of the limiting factors for cell therapy in Parkinson’s disease is the low survival rate of grafted dopaminergic *** factors could cause cell death of dopaminergic neurons after grafting such as mechanical trauma,growth factor deprivation,hypoxia,and *** factors play an essential role in the survival of grafted ***,direct,timely,and controllable delivery of neurotrophic factors into the brain faces important *** types of cells secrete neurotrophic factors constitutively and co-transplantation of these cells with dopaminergic neurons represents a feasible strategy to increase neuronal *** this review,we provide a general overview of the pioneering studies on cell transplantation developed in patients and animal models of Parkinson’s disease,with a focus on neurotrophic factor-secreting cells,with a particular interest in mesenchymal stromal cells;that co-implanted with dopaminergic neurons would serve as a strategy to increase cell survival and improve graft outcomes.

关键词： brain repair cell replacement co-grafts dopaminergic neurons fetal ventral mesencephalic tissue mesenchymal stem cells neural grafting neural transplantation neuroblasts neurotrophic factors

Integral Representation Formulas Related to the Lamé–Navier System

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Acta Mathematica Sinica,English Series 2020年第12期36卷 1341-1356页

作者： Ricardo ABREU-BLAYA juan BORY-REYES Marcos Antonio-HERRERA-PELáEZ josé María SIGARRETA-ALMIRA Facultad de Matemáticas Universidad Autónoma de GuerreroGuerreroMéxico Instituto Politécnico Nacional SEPI-ESIME-ZAC CD-MXMéxico

The paper provides integral representations for solutions to a certain first order partial differential equation natural arising in the factorization of the Lamé–Navier system with the help of Clifford analysis *** representations look like in spirit to the Borel–Pompeiu and Cauchy integral formulas both in three and higher dimensional setting.

关键词： Lamésystem Clifford analysis Dirac operator

Digital thermal monitoring of the Amazon forest:an intercomparison of satellite and reanalysis products

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International Journal of Digital Earth 2016年第5期9卷 477-498页

作者： juan C.Jiménez-Muñoz Cristian Mattar josé A.Sobrino Yadvinder Malhi Global Change Unit Image Processing LaboratoryUniversity of ValenciaPaternaSpain Laboratory for Analysis of the Biosphere Department of Environmental Sciences and Renewable Natural ResourcesUniversity of ChileLa PintanaChile School of Geography and Environment Environmental Change InstituteUniversity of OxfordOxfordUK

Remote sensing and climate digital products have become increasingly available in recent *** to these products has favored a variety of Digital Earth studies,such as the analysis of the impact of global warming over different *** study of the Amazon forest response to drought has recently received particular attention from the scientific community due to the occurrence of extreme droughts and anomalous warming over the last *** paper focuses on the differences observed between surface thermal anomalies obtained from remote sensing moderate resolution imaging spectroradiometer(MODIS)and climatic(ERA-Interim)monthly products over the Amazon *** a few exceptions,results show that the spatial pattern of standardized anomalies is similar for both *** terms of absolute anomalies,the differences between the two products show a bias near to zero with a standard deviation of around 0.2 K,although the differences can be up to 1 K over particular regions and *** this general agreement,the proper filtering of MODIS daily values in order to construct a new monthly product showed a dramatic reduction in the number of reliable pixels during the rainy season,while for the dry season this reduction is only seen in Northern Amazonia.

关键词： Thermal anomalies Amazon forest MODIS ERA interim thermal Amazonia

Smart Contract to Traceability of Food Social Selling

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Computers, Materials & Continua 2023年第3期74卷 4703-4728页

作者： Cristian Valencia-Payan joséFernando Grass-Ramírez Gustavo Ramirez-Gonzalez juan Carlos Corrales University of Cauca Calle 5#4-70190003Popayan-CaucaColombia

Traditionally,food sustainability has been considered solely in the stage of agricultural ***,globalization,the expansion of the food production industry,and the emergence of supermarket chains that control the retail food market require specific significant changes in supply chains in the food sector and,therefore,we need to address the economic,social,and environmental impacts of these *** the other hand,social selling has increased rapidly in recent years,with a further boom,following current events related to the coronavirus disease(COVID-19).This explosion of social sales,where there are usually no control and regulation entities,can bring problems associated with mishandling *** this paper,we expose how Blockchain technology supports the traceability of social sales by validating the data provided by the chain participants such as digital health passports,production and transport data in the sale process;the proposed solution generates recommendations on productmanagement considering the agreements previously made by the network *** evaluate the proposed smart contracts,we useHyperledger Caliper,obtaining an average throughput of 12.6 transactions per second and an average latency of 0.3 s for the asset update *** also use a study case to evaluate the proposed project platform’s selling-transport stage using Internet of Things(IoT)sensors.

关键词： Blockchain reliability smart contracts social selling traceability artisan sweets