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Insect Science 2015年第6期22卷 821-828页

作者： Eduardo M. soto Maria I. L. Betti Juan Hurtado Esteban Hasson Departamento de Ecologia Genetica y Evolucion IEGEBA (CONICET-UBA) Facultad de Ciencias Exactas y Naturales Universidad deBuenos Aires Buenos Aires Argentina

The preference-performance relationship in plant-insect interactions is a cen- tral theme in evolutionary ecology. Among many insects, eggs are vulnerable and larvae have limited mobility, making the choice of an appropriate oviposition site one of the most important decisions for a female. We investigated the evolution of oviposition preferences in Drosophila melanogaster Meigen and Drosophila simulans Sturtevant by artificially selecting for the preference for 2 natural resources, grape and quince. The main finding of our study is the differential responses of D. melanogaster and D. simulans. Although preferences evolved in the experimental populations of D. melanogaster, responses were not consistent with the selection regimes applied. In contrast, responses in D. simulans were consistent with expectations, demonstrating that this species has selectable genetic variation for the trait. Furthermore, crosses between D. simulans divergent lines showed that the genetic factors involved in grape preference appear to be largely recessive. In summary, our artificial selection study suggests that D. melanogaster and D. simulans possess different genetic architectures for this trait.

关键词： artificial selection behavior Drosophila genetic variation naturalresources oviposition preference

Animal models of Parkinson’s disease:bridging the gap between disease hallmarks and research questions

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Translational Neurodegeneration 2023年第1期12卷 391-415页

作者： Axelle Dovonou Cyril Bolduc Victoria soto Linan Charles Gora Modesto RPeraltaⅢ Martin Lévesque CERVO Brain Research Centre 2601Chemin de la CanardièreQuébecQC G1J 2G3Canada Department of Psychiatry and Neurosciences Faculty of MedicineUniversitéLavalQuébecQCCanada

Parkinson’s disease(PD)is a progressive neurodegenerative disorder characterized by motor and non-motor *** than 200 years after its first clinical description,PD remains a serious affliction that affects a growing proportion of the *** treatments only alleviate symptoms;there is still neither a cure that targets the neurodegenerative processes nor therapies that modify the course of the *** the past decades,several animal models have been developed to study *** no model precisely recapitulates the pathology,they still provide valuable information that contributes to our understanding of the disease and the limitations of our treatment *** review comprehensively summarizes the different animal models available for Parkinson’s research,with a focus on those induced by drugs,neurotoxins,pesticides,genetic alterations,α-synuclein inoculation,and viral vector *** highlight their characteristics and ability to reproduce PD-like *** is essential to realize that the strengths and weaknesses of each model and the induction technique at our disposal are determined by the research question being *** review,therefore,seeks to better aid researchers by ensuring a concrete discernment of classical and novel animal models in PD research.

关键词： Parkinson’s disease Animal model Alpha-synuclein Transgenic model Preformed fibril Mouse

Cosmopolitan Temporalities： A Sociological Analysis on Climate Imageries in Brazil and China

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Fudan Journal of the Humanities and Social Sciences 2018年第1期11卷 49-68页

作者： marcelo Fetz Estevao Bosco Emerson Palmieri Federal University of Espfrito Santo Av. Fernando Fen'aft 514 GoiabeirasVit6ria-ES 29075-910 Brazil University of Sao Paulo Sao Paulo Brazil State University of Campinas/UNICAMP Campinas Brazil

Time is a central theoretical resource for climate change science, climate policies, social actions addressing climate change problems, and shaping concepts of uncertainty and ambiguity. This paper presents a debate on how different epis- temic climate science communities deal with the concept of time by considering the social construction of climate imageries. To do so, we undertake two case studies on how China and Brazil＇s climate communities have shaped situated knowledge based on different historical social experiences that created different modes of dealing with climate change： China has created a concept of time based on practical climate experiences, while Brazil has developed a futuristic sense of how the climate will behave in the future. Finally, we address the idea of cosmopolitan climate imageries originated from hybrid forums and constructed by stocks of knowledge which have been shared transhistorically by different epistemic communities towards a common climate governance.

关键词： Climate change Time, Social imageries China. Brazil

The first record of dermochelyid turtles in the Eocene of Tierra del Fuego:new insights on the evolution of the Weddellian faunas

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Advances in Polar Science 2024年第1期35卷 63-77页

作者： Paula BONA Juliana STERLI marcelo Saúl de la FUENTE Eduardo OLIVERO Marta S.FERNÁNDEZ marcelo REGUERO División Paleontología Vertebrados Museo de La Plata-Anexo IIFacultad de Ciencias Naturales y MuseoUniversidad Nacional de La PlataLa Plata B1900FWAArgentina Consejo Nacional de Investigaciones Científicas y Técnicas(CONICET) Ciudad Autónoma de Buenos Aires C1425FQBArgentina Museo Paleontológico Egidio Feruglio Trelew U9100Argentina Instituto de Evolución Ecología Histórica y Ambiente-CONICETSan Rafael CP5600Argentina Centro Austral de Investigaciones Científicas-CONICET Universidad Nacional de Tierra del FuegoUshuaia CP 9410Argentina División Paleontología Vertebrados Museo de La PlataUniversidad Nacional de La PlataLa Plata B1900FWAArgentina

The Antarctic Paleogene marine fossil record has been the key to reconstructing the evolution of the Weddellian Sea and final dismemberment of Southern *** this context,Eocene marine vertebrates from Seymour(Marambio)Island have provided valuable *** present the first Eocene record of marine reptiles from the southern Atlantic Coast of South *** corresponds to several postcranial turtle remains represented by a proximal end of the right humerus,three caudal and one thoracic vertebrae,a fragment of the left pubis,and ten ossicles of the dorsal carapace,coming from the Leticia Formation(late-mid Eocene)at Cabo Tiburones,Tierra del Fuego,*** materials show severalfeatures such as the size and general morphology of the humerus and vertebrae,and the presence of relatively small,irregular,smooth,and unkeeled ossicles,which allow us to assign them to Dermochelyidae *** are a cosmopolitan group ofcryptodiran turtles,registered from the late Cretaceous up to the recent,with some physiological-biological peculiarities(e.g.,endothermy and an exclusive jellyfish-based diet)and characterized by the presence of an osseous carapace formed by *** new finding from the Leticia Formation is an addition to the scarce and extremely fragmentary record of Eocene dermochelyids from the southern seas like those from the La Meseta and Submeseta formations(Antarctica)and the Waihao and Burnside formations(New Zealand).This new information allows us to discuss the presence of these turtles in such high latitudes in the past and its implication in the evolution of the Weddellian fauna.

关键词： marine reptiles sea turtles Dermochelyidae Paleogene La Meseta Formation Submeseta Formation Leticia Formation

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Distribution of trace metals and Pb isotopes in bottom sediments of the Murucupi River,North Brazil

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International Journal of Sediment Research 2016年第3期31卷 226-236页

作者： Diomar Cavalcante Oliveira Jean Michel Lafon marcelo de Oliveira Lima Institute of Geosciences Federal University of Pára Environmental Section Evandro Chagas Institute

The Murucupi River belongs to the hydrographic network of the Para River estuary,at the southern portion of the Amazon River mouth,which consists of a fluvial-marine transitional zone under strong impact of both tidal and fluvial *** geochemical results obtained for bottom sediments from the Murucupi River,the Arrozal Channel,and the Para River indicate a natural variation of Pb,Cr,Cu,Zn,and Ni content among these water ways with no significant anthropogenic *** to the threshold effects level(TEL),the contents of trace metals do not offer risk to the local *** contrast,the differences in the Pb isotopic composition of sediments in the Murucupi River,the Arrozal Channel,and the Para River are *** isotopic signatures indicate an anthropogenic contribution of Pb in the Murucupi River originating from the domestic effluents of urban centers;industrial waste represented by red mud is not *** results demonstrate that the Pb isotopic signature is a prospective indicator for future contamination of bottom sediments by trace metals and is useful for identifying contaminants among the possible anthropogenic sources.

关键词： Bottom sediments Pb isotopes Trace metals Murucupi River Barcarena

Piezoelectric constant temperature dependence in strained [111]-oriented zinc-blende MQW-SOAs

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Chinese Optics Letters 2023年第9期21卷 107-112页

作者： Horacio soto-Ortiz Gerson Torres-Miranda Applied Physics Division Center for Scientific Research and Higher Education of Ensenada

Here,we present a study of the effective piezoelectric constant(e_(14_(e)))temperature dependence in strained[111]-oriented zinc-blende quantum wells(QWs)embedded within a semiconductor optical amplifier(SOA).We determined e_(14_(e)) using a method that was insensitive to the segregation phenomenon and to the temperature dependence of the bandgap energy,which required neither fitting parameters nor temperature-dependent expressions for energy and out-of-plane effective masses of electrons and heavy *** e_(14_(e))=−0.0534±0.0040 C·m^(−2) at 23°C was obtained for an SOA with 1.2 nm[111]-oriented strained In0.687Ga0.313As/In0.807Ga0.193As0.304P0.696 *** previously published research,where e_(14_(e)) magnitude increased as temperature rised,we extracted an e_(14_(e)) magnitude that decreased as temperature increased.

关键词： piezoelectric constant pyroelectric effect quantum-confined Stark effect excitons semiconductor optical amplifiers zinc-blende quantum wells

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What a few hairs can tell us about the resource use of giant armadillos

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Integrative Zoology 2023年第1期18卷 129-142页

作者： marcelo MAGIOLI Nina ATTIAS Gabriel MASSOCATO Danilo KLUYBER marcelo Zacharias MOREIRA Katia Maria Paschoaletto Micchi de Barros FERRAZ Adriano Garcia CHIARELLO Arnaud L.J.DESBIEZ Instituto Pró-Carnívoros AtibaiaSão PauloBrazil Centro Nacional de Pesquisa e Conservação de Mamíferos Carnívoros(CENAP) Instituto Chico Mendes de Conservação da Biodiversidade(ICMBio)AtibaiaSão PauloBrazil Instituto de Conservação de Animais Silvestres(ICAS) Campo GrandeMato Grosso do SulBrazil Instituto de Pesquisas Ecológicas Organização Não GovernamentalNazaréPaulistaSão PauloBrazil Houston Zoo HoustonTexasUSA Naples Zoo at Caribbean Gardens NaplesFloridaUSA Laboratório de Ecologia Isotópica Centro de Energia Nuclear na AgriculturaUniversidade de São PauloPiracicabaSão PauloBrazil Laboratório de Ecologia Manejo e Conservação de Fauna Silvestre(LEMaC)Departamento de Ciências FlorestaisEscola Superior de Agricultura“Luiz de Queiroz”(ESALQ)Universidade de São Paulo(USP)PiracicabaSão PauloBrazil Departamento de Biologia Faculdade de FilosofiaCiências e LetrasUniversidade de São Paulo(USP)Ribeirão PretoSão PauloBrazil RZSS-Royal Zoological Society of Scotland(RZSS) MurrayfieldEdinburghUK

Understanding of resource requirements of vulnerable species is key for conservation ***,we used sta-ble carbon(δ13C)and nitrogen isotopes(δ15N)of hair from giant armadillos(Priodontes maximus)to understand individual resource *** collected hair from 19 giant armadillos analyzing 34 samples from the Brazilian Pan-tanal and compared the resource use between sexes and age *** also assessed the relationship of isotopic values with individuals’body mass and the habitat type *** observed a wide variation in resource use by giant armadillos,showing that individuals consume prey that feeds on distinct resources and occupies different habitat types,indicating that there is individual variation in foraging *** giant armadillos presented a mixed diet(C3/C4 resources,forests/open areas),but a quarter of individuals had strictly C4 diets(open areas).Males are more prone to forage on C4 resources,presenting an isotopic niche 2.6-times larger than that of *** presented diets more associated with habitats with high arboreal cover(C3 resources,forests),while adults foraged more in open areas(C4 resources).This result is mirrored by the positive relationship betweenδ13C values and body mass,suggesting that larger giant armadillos tend to feed more in open *** observed thatδ13C values decreased as individuals increased the use of habitats with high arboreal *** stress the importance of con-serving the natural mosaic in the Pantanal landscape for the species persistence,given that giant armadillos require all habitat types to fulﬁll their dietary,spatial,and developmental needs.

关键词： diet ontogenetic changes resource partitioning stable isotopes telemetry

Experimental studies on curling development of artificial soils

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Journal of Rock Mechanics and Geotechnical Engineering 2019年第6期11卷 1264-1273页

作者： Duaa Al-Jeznawi marcelo Sanchez Abbas J.Al-Taie Marcin Zielinski Texas A&M University College StationTX77840-77845USA Department of Civil Engineering Al-Nahrain UniversityBaghdadIraq Department of Civil and Environmental Engineering University of StrathclydeScotlandG11XQUK

Soil curling is an important phenomenon associated with volume changes induced by increasing soil suction upon *** study of soil behaviors associated with drying in soils(*** shrinkage,desiccation cracks and curling)has received increasing attention over the last few years,which has been mainly driven by the forecast climate change that will warm up our *** are significant gaps in the current knowledge related to the factors that control the development of curling deformations in *** this,the curling phenomenon is investigated through laboratory desiccation tests on different mixtures of artificial *** effects of soil grain size distribution,mineralogy,soil microstructure,and soil water content on the curling deformation are *** photos were taken at regular time intervals during the tests to understand the volume changes in the soil samples during *** is found that soil fabric and soil water content have significant effects on curling *** is observed that the percentage of sand particles and the initial water content play a critical role in the development of soil *** of pure clayey minerals experienced shrinkage without or with minor curling during drying.

关键词： Curling Shrinkage Desiccation cracking Sedimentation Suction Thin soil layers

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World Journal of Gastroenterology 2017年第22期23卷 4132-4134页

作者： Lucia Ameghino Malco Damian Rossi Daniel Cerquetti marcelo Merello Movement Disorders Section Neuroscience Department Raul Carrea Institute for Neurological Research

Neurological features in celiac disease(CD) are not rare(5%-36%), but tremor is scarcely described. Subjects with CD and healthy controls completed an online survey using WHIGET tremor rating scale. One thousand five hundred and twelve subjects completed the survey, finally 674 CD patients and 290 healthy subjects were included. A higher prevalence of tremor in CD patients was observed in comparison to controls(28% vs 14%, P < 0.001). Frequency of family history of tremor in CD patients with and without tremor was 25% and 20%(P = 0.2), while in the control group it was 41% and 10%(P < 0.001). Controls with tremor showed a higher frequency of family history of tremor when compared to CD patients with tremor(41.5% vs 24.6%, P = 0.03). The results suggested that tremor in CD might be more frequent and possibly related to the disease itself and not due to associated essential tremor.

关键词： Tremor Celiac disease Gluten Gluten-free diet Movement disorders

Optimal physicochemical properties of dried litchis for Thai consumers

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International Journal of Agricultural and Biological Engineering 2014年第5期7卷 103-110页

作者： marcelo Precoppe Marcus Nagle Busarakorn Mahayothee Patchimaporn Udomkun Serm Janjai Joachim Muller Institute of Agricultural Engineering in the Tropics and Subtropics(440e) Universitat HohenheimGarbenstr.9D-70593StuttgartGermany Department of Food Technology Silpakorn University73000 Nakhon PathomThailand Department of Physics Silpakorn University73000 Nakhon PathomThailand

The litchi is a fruit essential for the economies of several Southeast Asian countries,but markets regularly reject it,mainly due to *** extends the shelf-life of litchis,but in Thailand the optimal characteristics of the dried product have not yet been *** purpose of this study was to determine the optimum physicochemical properties of dried litchis-those suitable for Thai *** dried fruits were submitted to physicochemical measurement and consumer evaluation,with datasets subsequently integrated using circular ideal-point regression *** surface methodology was then used to predict the optimum physicochemical properties of the *** was found that Thai consumer preferences with regard to dried litchis are for the fruits to be of golden-yellow color(L*ranging around 54;H ranging around 79°),to have a soft flesh(SMF ranging between 13 and 14 kN/100 g)and to have a sweet taste(TSS:TA ranging between 25 and 28).The results may be used in the future to prescribe pretreatments and drying conditions.

关键词： consumer preference response surface methodology circular ideal-point regression product optimization market acceptance lychee