bluuebunny/crossref_metadata_2025 huggingface dataset:
Quantifying Holocene sea-level change using intertidal foraminifera: lessons from the British Isles
Authors: Horton Benjamin P. , Edwards Robin J.
Published: July 2021

Abstract
Relationship of benthic foraminiferal diversity to paleoproductivity in the Neogene of the Caribbean deep-sea
Authors: Jain Sreepat , Collins Laurel S.
Published: July 2021

Abstract
Taphonomy of benthic foraminiferal tests from the Jurujuba Sound, Guanabara Bay, Rio de Janeiro, Brazil
Authors: Kfouri-Cardoso Patricia B. P. , Simões Marcello Guimarães , Rodrigues Sabrina Coelho , Eichler Beatriz Beck , Sousa Silvia Helena de Mello e , Eichler Patrícia Beck , Figueira Rubens César Lopes
Published: July 2021

Abstract
Vertical distribution of planktonic foraminifera in the southwestern Atlantic
Authors: Soranna Maria Regina Gonçalves de Souza , Sousa Silvia Helena de Mello e , Gaeta Salvador Airton
Published: July 2021

Abstract
Determinação experimental do coeficiente de restituição normal de rochas: aplicação na previsão do alcance de blocos em encostas
Authors: Dias Gilmar Pauli , Barroso Emílio Velloso
Published: July 2021

Among the several parameters involved in rock fall analisys, the restitution coefficient, which is related to the kinetic energy wasted after repeated impacts of a rocky body against the ground, is probably the most important and most difficult to acquire. There is the necessity of in situ tests where blocks of rocks are thrown down on the slopes. However these tests cannot be performed in places where people or urban equipments could be in risk. In this paper an acoustic method is used for the measurement of the normal restitution coefficient of rocks. This method is very well known by physicists but it has not been applied in the geosciences and engineering areas. It consists in the sound recording of successive impacts of a rock sphere against a smooth rocky surface. The gravity acceleration was back calculated from data obtained in order to verify if precision of the method is suitable. A sensibility analysis of the coefficient of restitution was already carried out simulating real rock fall problems.
Análise multiescalar de atributos sedimentares em depósitos fluviais paleogênicos na Bacia de Volta Redonda, RJ
Authors: Marques Claudio Cesar S , Mello Claudio Limeira , Ramos Renato R. Cabral
Published: July 2021

This study aims to perform a multi-scale analysis of the sedimentary attributes presented by Paleogene fluvial deposits of the Volta Redonda Basin (Continental Rift of Southeastern Brazil), including the characterization of sedimentary facies, depositional architecture and petrographical features. The results from this study may be applied to the modelling of fluid behaviour inside fluvial reservoir-rocks. Among the studied deposits are the main aquifers of the sedimentary basins which compose the Continental Rift of Southeastern Brazil. The methodologic framework comprised: interpretation of an outcrop by using a photomosaic to the recognition of depositional architecture, emphasizing the stratigraphic surface hierarchy; facies characterization with vertical profiles; and petrographic analysis of selected samples. Two distinct facies associations were recognized, corresponding to Resende and Pinheiral formations. The Resende Formation deposits present a simple complexity heterogeneity style, with a wide lateral continuity. They are composed by decimetric layers of massive sandstones interbedded to clayey sandstones, showing a tabular geometry and few dozen-meters width. The contacts between these deposits are gradual. The Pinheiral Formation deposits present a medium complexity heterogeneity style, exhibiting frequent truncation of architectural elements, characterized by decimetric and dozen-meters width sandy layers with conglomeratic levels interbedded to thin pelitic intervals. These deposits present a extended lenticular geometry and irregular contacts. Microscopically, sandstones from Resende Formation present low porosity, related to the occurrence of clayey matrix resulted from feldspars alteration. The sandstones from Pinheiral Formation show porosities similar to reservoir patterns.
Microbioerosão em conchas de Heleobia australis (Gastropoda: Rissooidea) da lagoa Salgada, Rio de Janeiro, Brasil
Authors: Senra Maria Célia Elias , Silva e Silva Loreine Hermida da , Conde Jonas Nascimento , Iespa Anderson Andrade Cavalcanti
Published: July 2021

Traces of microbioerosion are recorded on microgastropods shells that occur in association with recent stromatolites from lagoa Salgada, Rio de Janeiro State. The high destruction levels produced by microborers on the bioclasts were directly observed through optical and scanning electron microscroscopy. This study goals the identification and description of the bioerosion patterns on microgastropods of the species Heleobia australis (D'Orbigny). The microborings consist of sinuous ramified microborings galeries that were related to the ichnogenera Fascichnus, as well as groups of circular and irregular perforations that remained unidentified. Energy Dispersive X-Ray Spectrometry (EDS) analysis of the dark shells surfaces detected the elements sulfur and iron, both closely tied to the microbial metabolism.
Utilização de veículos alternativos de comunicação para a difusão do conhecimento paleontológico
Authors: Faria Ana Carolina Gelmini de , Vieira Ana Carolina Maciel , Machado Deusana Maria da Costa , Matos Juliana Silva de , Ponciano Luiza Corral Martins de Oliveira , Novaes Mariana Gonzales Leandro
Published: July 2021

Paleontology teaching must be an usual subject in the cultural formation. It is from it that man understands the history of Earth and its evolutionary process, giving a new look and perspective of what behaviors a society must adopt. In order that teaching of paleontology subjects gets a response back from society, other methods beside the basic didactic books must be explored for diffusion of educational and informative message, whit less academic terms and more attractively. Searching alternatives to fill such necessities, some of the available options are: Games, expositions, animations/documentaries and paradidactic books. These media have already been used by many scholars in the area, but can always be reworked and explored. The Laboratório de Estudos de Comunidades Paleozóicas (LECP) of the Universidade Federal do Estado do Rio de Janeiro (UNIRIO) has been using one of these alternatives. It is a project of elaboration of paradidactic books that a language directed to the infant-juvenile people was adopted to introduce paleontological concepts and fossiliferous localities - Maecuru e Ererê Formations (Amazonas Basin) - from Devonian Period. The referred project, although using a resource already available in Paleontology teaching, is innovator, because it deals with Brazilian formations of a geologic period unknown by the population. By alternative educational proposes the paleontology consolidates new process of interdisciplinary, necessary for diversified divulgation of its subjects. This new paleontology vision, when assimilated by the society, allow a conscientization about the biologics and non-biologics process that have occurred along the geologic time. A holistic conscience of the evolution of the Earth would help in the formation of a new society, which is already worrying about the balance and availability of the natural resources.
Análise dos foraminíferos bentônicos de dois testemunhos na região nordeste da Baía de Guanabara
Authors: Fonseca Raquel Batista Medeiros da , Abreu Kelly Cristine Costa de , Vilela Claudia Gutterres , Baptista Neto José Antônio
Published: July 2021

Guanabara bay receives a large amount of industrial and domestic sewage, which contributes for its environmental degradation. For monitoring those environmental changes, two cores from the northeastern area of the bay were analized. They were subsampled in centimeter intervals and the laboratory treatment followed specific methodology for foraminifera. Foraminifera are much sensitive microorganisms as to environmental changes as to anthropogenic ones, thus they are useful as pollution indicators. The results show low values of diversity, however, a higher diversity in the core T15, between Paquetá island and São Gonçalo than in the core T14, at São Gonçalo south region. Both of them presented Ammonia tepida as a dominant species human pollution bioindicator, and Buliminella elegatissima as bioindicator of high levels of organic matter.
Mariliasuchus robustus, um novo Crocodylomorpha (Mesoeucrocodylia) da Bacia Bauru, Brasil
Authors: Nobre Pedro Henrique , Carvalho Ismar De Souza , Vasconcellos Felipe Mesquita de , Nava Willian Roberto
Published: July 2021

Herein is described a new species of a Crocodylomorpha Mesoeucrcodylia belonging to the genus Mariliasuchus from the Adamantina Formation (Upper Cretaceous, Turonian-Santonian), Bauru Basin, Brazil. The diagnostic features of the new species of Mariliasuchus are related to increased stoutness of the skull, wich is high, short and posteriorlly wide; the posterior region of the skull is almost as high as wide. The rostrum is straight, high, and rectangular in cross-section, with a convex dorsal surface, bearing no signs of a antorbital fenestrae. The orbits are large and laterally positioned in the skull. The external nares are forward oriented. The dentition presents pointed anterior teeth (incisiform), a hypertrophied caniniform and a low and globular post-caniniform teeth. The mandible is robust and display a strong vertical bending in its anterior and posterior ends.
Considerações sobre estromatólito do tipo domal da Lagoa Salgada, Estado do Rio de Janeiro, Brasil
Authors: Silva e Silva Loreine Hermida , Iespa Anderson Andrade Cavalcanti , Damazio-Iespa Cynthia Moreira
Published: July 2021

The lagoa Salgada is situated on the north coast of the State of Rio de Janeiro, between the districts of Campos dos Goytacazes and São João da Barra, at 41º00'30'' W and 21º54'10''S. In the margins of the lagoon the presence of recent stromatolitic constructions was verified. The stromatolite may be defined as lithified biosedimentary structure, growing through the increase of sediment blade trapping by the carbonate precipitation as result of microbian organism activity. The objective of this study was to describe and to determine the internal morphology of domal type stromatolite of the lagoa Salgada. Through cutting, three different stages were observed: the first (base) is present as a thrombolitic stage with spread blade; the second (intermediary) is a thrombolitic-stromatolitic stage with spread and continuous blade; the third (top) is stromatolitic and the most recent stage of the structure, presenting continuous blade and with interruptions rare. Besides the presence of cyanobacteria and mollusk shells, were observed also internee palinomorphs inside the domal stromatolite. It was possible to observe that filament cyanobacteria contributed to the formation of blade of domal stromatolite and the microgastropod contributed for the destruction of the blade.
A postura locomotora de Protolipterna ellipsodontoides Cifelli, 1983 (Mammalia: Litopterna: Protolipternidae) da Bacia de São José de Itaboraí, Rio de Janeiro (Paleoceno superior)
Authors: Bastos Ana Carolina Fortes , Bergqvist Lílian Paglarelli
Published: July 2021

The Litopterna is a group of endemic South America ungulates that lived from Late Paleocene (Itaboraiense) to Late Pleistocene (Lujanense). The order is divided in two large groups based on dental features: the Bunolipterna, in which the Protolipternidae is placed, is composed by taxa with primitive bunodont teeth; and the Lopholipterna, grouping taxa with derived lophodont teeth. In both the postcranial morphology is derived and uniform since the early forms. The Itaborai Basin, located at São José district, Itaboraí city, Rio de Janeiro state, is filled with different kinds of limestones, cut vertically by fissure fill deposits, where most of the fossils were collected. Protolipterna ellipsodontoides was described in 1983 based on dental features, but later postcranial bones were associated to this species. The main goal of this article is to infer the foot posture of P. ellipsodontoides. The material studied consists of femora, astragali, calcanea and metatarsals III, comprising 165 bones. All fossils were deposited in the fossil mammal collection of Departamento Nacional da Produção Mineral, in Rio de Janeiro state, Brasil. The methodology employed consisted of 15 linear and curvilinear measurements, which were submitted to a multivariate analysis (Principal Component Analysis -PCA and Discriminant Function Analysis -DFA). The results suggested a digitigrade posture to P. ellipsodontoides. Other morphological features of the skeleton, associated with a digitigrades posture, are suggestive of a cursorial locomotion, but with probable saltatory habits.
Considerações paleoecológicas sobre os notoungulados da formação Tremembé, Bacia de Taubaté (São Paulo, Brasil)
Authors: Melo Diogo Jorge de , Bergqvist Lílian Paglarelli , Alvarenga Herculano Marcos Ferraz
Published: July 2021

Notoungulates were recovered from bentonitic clays of the Tremembé Formation (Taubaté Basin). Two families, three genres and two species are known so far: Leontinidae (Taubatherium paulacoutoi and ?Ancylocoelus) and Notohippidae (Rhychippus brasiliensis). Analyzing the paleobiology data of this group and the geological context of the basin together, we assume that leontinids inhabited lake's margin, occupy a niche similar to the capybara (Hydrochoerus), having amphibian habit and feeding on plants like Pteridophyta, Cyperaceae, Typhaceae, aquatic plants and with Gramineae possibilities. Although notohippids seem to forest dwellers, they probably supported selective habits, feeding on fruits, young leaves and buds.
Aspectos tafonômicos de Testudines da formação Santana (Cretáceo Inferior), Bacia do Araripe, Nordeste do Brasil
Authors: Oliveira Gustavo Ribeiro de
Published: July 2021

Araripe Basin is worldwide famous by diverse and exquisitely well preserved fossil assemblages in Santana Formation. This lithostratigraphic unit is subdivided into three members: Crato, Ipubi and Romualdo. Up to date six species of turtles are known: Araripemys barretoi Price, 1973; Santanachelys gaffneyi, Hirayama, 1998; Brasilemys josai Lapparent de Broin, 2000; Cearachelys placidoi Gaffney, Campos & Hirayama, 2001, Euraxemys essweini Gaffney, Tong & Meylan, 2006 and Caririemys violetae Oliveira & Kellner, 2007. Taphonomical features of turtles from Crato and Romualdo members are presents here. One specimen was examined in the Crato lagerstätte, (MN 4893-V) Araripemys sp. (partial skull, axial and apendicular skeleton). This exemplar is preserved in light-beige colored laminated limestone from the Crato Member. Three specimens were analized (MN 6743-V, MN 6744-V and MN 6760-V) in the Romualdo lagerstätte, the two first are Araripemys barretoi specimens (shell and cervical vertebrae) and the later is a Cearachelys placidoi specimen (fragmented shell). They are preserved in calcareous nodules. No data of collection of these specimens are available, however are possible to infer on aspects of preservation of these exemplares, since that these are preserved in the original sedimentary matrix. All specimens have shown the surface of bones without abrasion, what it allows to infer these turtles as autocthonous.
Influência dos fatores ambientais na preservação da microfauna de foraminíferos bentônicos no ambiente recifal dos Parrachos de Maracajaú, RN, Brasil
Authors: Batista Daniele Silva , Vilela Claudia Gutterres , Koutsoukos Eduardo A. M
Published: July 2021

Taphonomy focuses on the post-mortem processes of transport and preservation of biotic remains in the sedimentary record, and as such it has important applications for paleoenvironmental reconstructions. The aim of this work is to verify the degree of dissolution, abrasion, bioerosion and fragmentation in foraminiferal tests recovered from bottom sediments of the Parrachos de Maracajaú, Rio Grande do Norte, and to estimate the influence of these taphonomic processes in the distributon and preservation of the assemblages. Fifty-one species of benthic foraminifera have been found in the studied site. The taxonomic composition is typical of a coral reef environment. Amphistegina lessoni, Sorites marginalis, Quinqueloculina lamarckiana, Q. agglutinans, Peneroplis carinatus and Archaias angulatus are abundant in all the studied localities. The energy of the environment was interpreted as high. The species have been grouped into two groups, and the statistical data show that all four taphonomic processes (dissolution, abrasion, bioerosion and fragmentation) have influenced the distribution and preservation patterns of the foraminifera.
O retorno impossível: Charles Darwin e a escravidão no Brasil
Authors: Fernandes Antonio Carlos Sequeira , Moraes Vera Lucia Martins de
Published: July 2021

The presence of traveling naturalists and foreign artists in Brazil, both in its colonial period and in the imperial period, largely enriched the amount of information available about the country. Charles Darwin was one of those travelers who, with a simple and objective approach, contributed to this knowledge by pointing out the exuberance of our flora and fauna just like the others had done and more emphatically. Unlike many travelers, however, he scarcely referred to the political and social issues of the land he visited. From his main texts and correspondence one can obtain little but not less useful remarks about that; worthy of note is Darwin's pointing out the situation of slavery in Brazil, emphasizing the ill-treatment that captives were subjected to, particularly in Rio de Janeiro. With a brief report on the main aspects of its origins and on the presence of Darwin in Brazil, this paper studies the treatment given to the slaves in the first decades of the 19th century taking into account his reports and the negative feeling that would lead him never to want to come back to the country whose natural beauty he had praised so much
O gênero Pholadomya Sowerby, 1823 (Mollusca: Bivalvia) na formação Jandaíra (Cretáceo Superior), Bacia Potiguar: implicações paleoecológicas e paleogeográficas
Authors: Benaim Natalia Pereira , Senra Maria Célia Elias
Published: July 2021

Pholadomya Sowerby, 1823 is an anomalodesmatan bivalve that dispersed during Mesozoic, like other Mollusks, colonizating the South Atlantic shallow seas, between Brazil and Africa. On brazilian Cretaceous the sources of Pholadomya are scarce, occurring in outcrops from Algodões Formation, Gramame Formation and Jandaíra Formation, where occurs the species Pholadomya baixaleitensis. Based on specimens from new outcrops of Jandaíra Formation, a new occurrence of P. cf. adversa and P. baixaleitensis are shown and a new morfotype for the genus is described. It was possible to infer that the species studied presented deep endobentonic habits, and burrowed slowly the sediment, probably living their whole life into the same cavity. During Campanian Pholadomya is known from Cameroon, France, Poland, Austria, Germany and other localities in United States of America, occurring in association with other tethyan mollusks. The records of the genus in the marginal equatorial basins enhance the fossil bivalve diversity, and agree with the hypotesis of a south latitudinal range for the Tethyan Realm during Upper Cretaceous.
Composição dos estromatólitos estratiformes da lagoa Salgada, Rio de Janeiro, Brasil
Authors: Silva Loreine Hermida da Silva e , Iespa Anderson Andrade Cavalcanti , Iespa Cynthia Moreira Damazio
Published: July 2021

Lagoa Salgada is situated in the north coast of State of Rio de Janeiro, between the districts of Campos dos Goitacazes and São João da Barra, some 41º00'30" W and 21º54'10"S. In the margins of the lagoon the presence of recent stromatolitic constructions was verified. The stromatolite may be defined as lithifying biosedimentary structure, growing through of sediment blade trapping by the carbonate precipitation as result of microbian organism activity. The aim of this study was to characterize the cyanobacteria assemblage in stratiform stromatolites found on the floor of lagoa Salgada. Within the stratiform stromatolites 21 species of cyanobacteria were found, Microcoleus chthonoplastes (Thuret) Gomont 1892 and Lyngbya aestuarii (Liebman) Gomont 1892 are frequent in these stromatolites. The presence of calcite was observed in the stratiform stromatolites. The filamentous cyanobacteria are responsible for the union and imprisonment of sediment to form the layers in the stromatolites. The skeleton remains of mollusks, foraminifers and ostracod found in the area, work as a source of calcium carbonate and of sediment to structure the stromatolites
Evolução da linha de praia do Peró, Cabo Frio / RJ nos últimos 7.000 anos
Authors: Dias Fábio Ferreira , Seoane José Carlos Sícoli , Castro João Wagner Alencar
Published: July 2021

The present work aims to evaluate the coastal dynamics along the Peró beach over the last 7,000 years, using shell-midden dating, sediment granulometric analysis, aerial photography from different ages, and field investigation to aid result interpretation and provide for clues on the adaptation of the methodology employed. Paleobeach reconstruction has been made possible by a combination of 14C age-dating and the interpretation of beach ridge disposition. Aerial photography from the years of 1959, 1976, and 2003 allow the evaluation of the present short-term coastline behavior, thus establishing the position of the paleobeach in relation to the current high-tide zone. Results indicate that the paleobeach situated in the present-day coastal plain dates from 3.373 - 3.000 cal A.P. Coastline variation in the 1959 - 1976 period consists of approximately 30m of accretion on its most significant point, while in the it eroded about 30m at the central beach sector during 1976 - 2003 period. In this context, results are considered satisfactory for the understanding of sedimentation dynamics at the Peró beach, in the city of Cabo Frio, Rio de Janeiro, Brazil.
Caracterização mineralógica e tecnológica do caulim de Silvânia, Estado de Goiás
Authors: Bertolino Luiz Carlos , Mendonça Bruno Carvalho , Oliveira Sérgio Botelho de , Luz Adão Benvido da , Freire Fabrício Ribeiro
Published: July 2021

The study aimed the mineralogical and technological characterization of various types of kaolin in the region of Silvânia - Goiás, as well as its physical and chemical processing to eliminate mineralogical impurities and upgrade the level of whiteness of kaolin. The kaolin of this region presented kaolin absolute properties, is fine to medium grained, after chemical bleaching, its whiteness reached 68.10% ISO. The results indicated that the kaolin of the region of Silvânia can be used as filler in the paper industry or in the production of ceramics.
Análise do banco de atendimentos da Defesa Civil do Estado de São Paulo
Authors: Chagas Diego José , Chan Chou Sin , Corsi Alessandra Cristina
Published: July 2021

In recent years the simple data organization is no longer a differential factor for institutions, since, depending on their volume, the traditional method of analysis and interpretation is extremely slow and costly. The use of data mining techniques is an alternative to allow this process semi-automatic. The objective of this work is to carry out a case study of data mining technique based on the WEKA software applied to hydrometeorological and geomorphological data which were collected in the Serra do Mar region of São Paulo State. Results obtained from the application of the association technique indicate that the presence of rock and boulders at terrains with scars and high declivity are relevant factors for the landslide occurrence.
Foraminíferos bentônicos em sedimentos de fundo da lagoa de Maricá, Estado do Rio de Janeiro
Authors: Bomfim Clarissa Da Silva , Vilela Claudia Gutterres , Guedes Daniel Coré
Published: July 2021

A study of benthic foraminifera was carried out on sediments from the bottom of Maricá lagoon located in the Região dos Lagos, state of Rio de Janeiro. This region is suffering with disordered human occupation and there has been an increase in the occupation rates and several projects for tourist resorts in the area. The response of the foraminifera to such activities was important for the ecological characterization. The laboratory treatment of the samples followed the specific methodology for foraminifera. The dominant species were Miliammina fusca and Miliammina spp., followed by Haplophragmoides spp., Trochammina inflata, Trochammina spp, Ammobaculites dilatatus and Arenoparrella mexicana. Those species have agglutinated tests that characterize paralic environments with low energy and salinity variations, in coastal regions. A comparative study with the Guanabara Bay showed distinct assemblages and distinct environments. In spite of the anthropogenic pollution influence in the lagoon, that pollution has not reached critical levels, and this response could suggest an efficient environment control by public policies to preserve the ecosystem.
Geomicrobiologia e composição bioquímica de dois testemunhos da Enseada de Jurujuba: Baía de Guanabara - SE Brasil
Authors: Silva Frederico Sobrinho , Santos Elisamara Sabadini , Laut Lazaro Luiz Mattos , Sanchez-Nuñes Maria Leonisa , Fonseca Estefan Monteiro da , Baptista-Neto José Antônio , Mendonça-Filho João Graciano , Crapez Mirian Araújo Carlos
Published: July 2021

The aim of this work was to quantify the biopolymers associated to esterase enzymes and identify the bacterial respiratory activity in two cores collected in Jurujuba Sound, Guanabara Bay, Rio de Janeiro State. Biopolymer concentrations were ten times less than reported in the literature, rendering necessary the creation and establishment of new eutrophication levels indices more compatible with Brazilian coastal systems. The biochemical representative relationship in the cores was equivalent to the available data for coastal marine environments. The amount of esterase enzymes in the sediment proved that the mineralization of biopolymers is in continuous process, even with preferentially anaerobic metabolism. Despite the fact that geomicrobiology studies are incipient, this study's results indicate the possible application of microbiology for providing a better understanding of the geochemical processes in tropical environment.
Produção, estoque e retenção hídrica da serrapilheira em encosta sob plantio de híbridos de Eucalyptus urophylla e Eucalyptus grandis: médio vale do rio Paraíba do Sul
Authors: Melos Aline Riccioni de , Sato Anderson Mululo , Coelho Netto Ana Luiza
Published: July 2021

Eucalyptus patches are spreading rapidly through middle Paraíba do Sul river valley and environmental effects of this activity are still ambivalent and poorly documented (Vianna et al., 2007). This study aims to evaluate the litter production and litter storage on slopes in Eucalyptus and verify its water retention capacity, to support understanding of the hydrological responses to rainfall inputs. This study aims to evaluate the litter production and litter storage of Eucalyptus. Study site is located at a headwater basin in Sesmarias river basin covered by Eucalyptus grandis x urophyla, 3 x 2 meters spaced (1666 trees. ha-1) planted in April 2004. Litter was collected in four different positions using 0.5 quadracts to litter production measurement, and 0.25 m quadracts to litter storage measurement. Samples were dried, weighted, separated in fractions (leaves, branches, grass, roots + fine material) and had the fractions weighted. Litter fall showed an increase with decreasing rainfall, and the litter fall was higher in the divisor (10.2 Mg.ha-1) than in the slope (6.6 Mg.ha-1). Litter storage presents an increase trend, with annual accumulation of 2,2 Mg.ha-1 and it is composed largely by leafs. Water retention capacity is 235%, which is close to values that are found in the Tropical rainforest (200% - 259%).
Uso de Anaglifos como Alternativa para Práticas de Estereoscopia em Sensoriamento Remoto
Authors: Santos Daniel Souza dos , Dias Fábio Ferreira
Published: July 2021

Aerial Photogrammetry is one of the most used implements on remote sensing. One of the most common resorts for analysis in this area is the stereoscopy, which consists of visualization on 3 dimensions of the aerophoto through the use of a stereoscopic pair. There are three main stereoscopic visualization methods: trough anaglyphs, polarization and with a stereoscope. Despite the stereoscope still the most used method, the anaglyph may be an alternative for studies using stereoscopic techniques, with the advantage of using cheaper materials and having the possibility of application on Geographic Information Systems, allowing more cleared analysis with the tools of this kind of software, being very useful when applied on the education, turning the teaching process more dynamic.
Caracterização de Microfácies Sedimentares em Folhelhos da Formação Ponta Grossa (Devoniano) na Borda Leste da Bacia do Paraná
Authors: Carelli Thiago Gonçalves , Borghi Leonardo
Published: July 2021

This study aims a microfacies characterization of outcropping shales in the Eastern border of Paraná Basin (34 samples) representing a transgressive system tract (lower Jaguariaíva Member, 20 samples) and a highstand system tract (upper São Domingos Member, 14 samples) of the Ponta Grossa Formation, inserted in a 3rd order depositional sequence cycle (megasequence), and their interpretation in terms of sedimentary processes and paleoenvironments. The study is based on petrographic microscopy, aided by XRD (clay mineralogy) and geochemical (TOC) data. The microfacies analysis took into consideration the mineralogy, microtexture, microfabric, microstructure (physical and biogenic), microfossils, particulate organic content, stratal variation, and colour in plugues and thin sections. Results point out 9 microfacies, 2 of them typical of the TST (M1 and M2) and 7 of the HST (M3 to M9). The microfacies from the TST show in general a chaotic microfabric (in part resulted from a higher bioturbation index), and a fine sand and silt rich composition (except one, associated to the 3rd order MFS); whereas the HST are silt and clay rich, and show a fairly oriented microfabric, and better preserved physical structures. Bottom wave reworking followed by biogenic activity (bioturbation) in proximal offshore paleoenvironmets are responsible for the best reservoir sedimentological characteristics of the microfacies M1 (associated to the TST) among all of them. Distal hyperpycnal flows, decantation from bottom wave resuspension plumes, microbial mats development, and low biogenic activity in prodelta/offshore paleoenvironments are responsible for best sedimentological sealing characteristics of the microfacies M3-M9 (associated to the HST).
Application of Advanced RANS Turbulence Models for the Prediction of Turbomachinery Flows
Authors: Casartelli Ernesto , Mangani Luca , Roos Launchbury David , Del Rio Armando
Published: July 2021

The current trend in turbomachinery toward broader operating characteristics requires that operating points in the off-design region can be captured accordingly from the simulation models. Complex processes like separation and vortex formation/dissipation occur under these conditions. Linear two equation models are often not able to represent these effects correctly since their derivation is based on oversimplifications, such as the Boussinesq hypothesis, which makes it impossible to capture anisotropic turbulence. Advanced RANS models are usually not considered in the design process of turbomachines because (1) they are usually more delicate with regards to stability and convergence behavior and (2) require additional computational effort. To make the usage of advanced RANS models more applicable for complex turbomachinery simulations, a selected group of models were implemented into a robust framework of a pressure-based fully coupled solver. To further enhance stability, coupling terms between the turbulent transport equations were derived for several models. Anisotropic turbulence is introduced by computing an algebraic expression or by solving the transport equations for the Reynolds stress components. The evaluation of the models is performed on the RWTH Aachen “Radiver” centrifugal compressor case with vaned diffuser. For design conditions and operation points near the stability limit, all investigated turbulence models predict the compressor characteristic. Operation points in the choking region, on the other hand, are only predicted well by anisotropic models. The good results and improved convergence behavior of the advanced RANS models clearly indicates their applicability in the design process of turbomachines.
A Comparison Between Organic Rankine Cycle and Supercritical CO2 Bottoming Cycles for Energy Recovery From Industrial Gas Turbines Exhaust Gas
Authors: Ancona Alessandra Maria , Bianchi Michele , Branchini Lisa , De Pascale Andrea , Melino Francesco , Peretto Antonio , Torricelli Noemi
Published: July 2021

Gas turbines are often employed in the industrial field, especially for remote generation, typically required by oil and gas production and transport facilities. The huge amount of discharged heat could be profitably recovered in bottoming cycles, producing electric power to help satisfying the onerous on-site energy demand. The present work aims at systematically evaluating thermodynamic performance of organic Rankine cycle (ORC) and supercritical CO2 energy systems as bottomer cycles of different small/medium size industrial gas turbine models, with different power rating. The thermoflex software, providing the GT PRO gas turbine library, has been used to model the machines performance. ORC and CO2 systems specifics have been chosen in line with industrial products, experience and technological limits. In the case of pure electric production, the results highlight that the ORC configuration shows the highest plant net electric efficiency. The average increment in the overall net electric efficiency is promising for both the configurations (7 and 11 percentage points, respectively, if considering supercritical CO2 or ORC as bottoming solution). Concerning the cogenerative performance, the CO2 system exhibits at the same time higher electric efficiency and thermal efficiency, if compared to ORC system, being equal the installed topper gas turbine model. The ORC scarce performance is due to the high condensing pressure, imposed by the temperature required by the thermal user. CO2 configuration presents instead very good cogenerative performance with thermal efficiency comprehended between 35% and 46% and the primary energy saving (PES) value range between 10% and 22%. Finally, analyzing the relationship between capital cost and components size, it is estimated that the ORC configuration could introduce an economical saving with respect to the CO2 configuration.
On the Performance of Wavy Dry Friction and Piezoelectric Hybrid Flexible Dampers
Authors: Wu Y. G. , Fan Y. , Li L. , Zhao Z. M.
Published: July 2021

This paper proposes a flexible dry friction plate to mitigate the vibration of thin-walled structures for one resonance crossing. Based on a cantilever beam–friction damper finite element model, the geometry and material parameters of the friction plate are optimized numerically through steady-state response analyses by the widely used multiharmonic balance method (MHBM). In order to further improve the damping effect, piezoelectric material is distributed to the flexible damper, and two types of dry friction and piezoelectric hybrid dampers are explored, namely, semi-active and passive, respectively. For semi-active hybrid dampers, piezoelectric material is used as an actuator to adjust the normal load applied to the friction interface in real-time, so that the friction damping is improved. For passive ones, piezoelectric material is used as a transducer, which dissipates the strain energy stored in the wavy plate by the shunting circuit, additional shunted piezoelectric damping contributes to the total output damping accordingly. Better damping effect compared with the friction baseline is realized for the two types ideally. This damping module has a simple structure and avoids the problem of installation and maintenance of piezoelectric material which is generally bonded to the host structure. Technical challenges are the semi-active type requires excessive voltage applied to the piezoelectric actuator, while the passive one needs to connect a programable synthetic circuit.
A Buffering Effect of Mental Toughness on the Negative Impact of Basic Psychological Need Thwarting on Positive Youth Athlete Functioning
Authors: Kinoshita Keita , MacIntosh Eric , Sato Shintaro
Published: July 2021

Basic psychological needs (BPN) are a construct that helps clarify the psychological mechanism to reach desirable outcomes for youth athletes. When BPN are undermined, people should be less likely to thrive. As mental toughness (MT) can reduce the negative effects of stressors, MT may buffer the negative effects of maladaptive motivation. This study investigated the mediating role of thriving on the relationships between BPN thwarting and important outcomes for youth athletes’ positive functioning. It also examined the buffering effects of MT. One hundred eighty-eight Canadian youth athletes (Mage = 15.51) answered an online survey. The results demonstrated that thriving was a significant mediator, and the indirect relationships were moderated by MT. The indirect associations were nonsignificant for youth with high MT. The findings demonstrated that MT might decrease the negative impacts of BPN thwarting on thriving and important outcomes for young athletes.
Vascular rejuvenation is geroprotective
Authors: Augustin Hellmut G. , Kipnis Jonathan
Published: July 2021

Vascular endothelial growth factor–A extends life span and health span in mice
Draft Whole-Genome Sequence of Bacillus paramycoides LB_RP2, a Putative Polyhydroxyalkanoate-Producing Bacterium Isolated from an Amazonian Blackwater River
Authors: de Castro Lorena Mota , Foong Choon Pin , Higuchi-Takeuchi Mieko , Lopes Eraldo Ferreira , Numata Keiji , Dias da Silva Suelen , da Silva Nonato Luana , da Mota Adolfo José , Odair Pereira José
Published: July 2021

Bacteria of the genus
Bacillus
have been investigated due to the ability that many species have of accumulating polyhydroxyalkanoates (PHA) via a wide variety of raw materials as their carbon source. Herein, we report the draft whole-genome sequence of the putative PHA-accumulating strain
Bacillus paramycoides
LB_RP2, isolated from an Amazonian river.
Complete Genome Sequence of Pantoea agglomerans ASB05 Using Illumina and PacBio Sequencing
Authors: Lee Sang In , Tran Thao D. , Huynh Steven , Parker Craig T. , Hnasko Robert , McGarvey Jeffery A.
Published: July 2021

We present the complete genome sequence of
Pantoea agglomerans
ASB05 and three associated plasmids, generated using a combination of the Illumina and PacBio platforms.
P. agglomerans
ASB05 was isolated from fresh cherries purchased in Albany, California, in 2016.
Haemodialysed patient with lung cancer in the COVID-19 era: a clinical challenge
Authors: Carvalho Tomás de Paiva , Trinca Francisco , Cardoso Teresa , Dinis Rui
Published: July 2021

A 66-year-old man was referred to the oncological pneumology consultation due to a mass in the right upper lobe observed in a routine X-ray of the chest. The CT scan confirmed a mass in the same location. The biopsy revealed a lung adenocarcinoma. It was decided to start chemotherapy adapted to kidney function. In April 2020, the patient contracted SARS-CoV-2 infection and developed bilateral pneumonia with partial respiratory failure. He was transferred to the intensive care unit, where he had a positive evolution. In the next 5 months, there was a clinical improvement; however, the CT scan of the chest showed disease progression. After a new multidisciplinary approach, it was decided to start a second line with atezolizumab. After four cycles of atezolizumab, there was a clear clinical improvement, and a reduction by more than 50% in the tumour size, without significant adverse effects.
Factors associated with engagement and adherence to a low-energy diet to promote 10% weight loss in patients with clinically significant non-alcoholic fatty liver disease
Authors: Scragg Jadine , Hallsworth Kate , Taylor Guy , Cassidy Sophie , Haigh Laura , Boyle Marie , Anstee Quentin , McPherson Stuart , Avery Leah
Published: July 2021

Objective

Clinical guidelines recommend weight loss to manage non-alcoholic fatty liver disease (NAFLD). However, the majority of patients find weight loss a significant challenge. We identified factors associated with engagement and adherence to a low-energy diet (LED) as a treatment option for NAFLD.

Design

23 patients with NAFLD enrolled in a LED (~800 kcal/day) were individually interviewed. Transcripts were thematically analysed.

Results

14/23 patients achieved ≥10% weight loss, 18/23 achieved ≥7% weight loss and 19/23 achieved ≥5% weight loss. Six themes were generated from the data. A desire to achieve rapid weight loss to improve liver health and prevent disease progression was the most salient facilitator to engagement. Early and significant weight loss, accountability to clinicians and regular appointments with personalised feedback were facilitators to engagement and adherence. The desire to receive positive reinforcement from a consultant was a frequently reported facilitator to adherence. Practical and emotional support from friends and family members was critically important outside of the clinical setting. Irregular working patterns preventing attendance at appointments was a barrier to adherence and completion of the intervention.

Conclusions

Engagement and adherence to a LED in patients with NAFLD were encouraged by early and rapid weight loss, personalised feedback and positive reinforcement in the clinical setting combined with ongoing support from friends and family members. Findings support those identified in patients who completed a LED to achieve type 2 diabetes remission and highlight the importance of behaviour change support during the early stages of a LED to promote adherence.
Psychological Concerns of Children Undergoing Kidney Transplantation During the Pandemic: Single-centre Experience
Authors: Paessler Alicia , Boyle Sheila , Marks Stephen , Kessaris Nicos , Stojanovic Jelena
Published: July 2021

Many paediatric kidney transplant programmes were closed during the COVID-19 pandemic, and due to the vulnerable nature of patients with end-stage kidney disease (ESKD), there were new concerns once these programmes reopened. We surveyed children and families who received a kidney transplant during the pandemic. We found that half of the participants felt scared and/or anxious about receiving a kidney transplant during the pandemic, and 2/8 participants were worried about catching COVID-19 during their recovery. While detailed counselling and additional safety precautions contributed to a good experience, patients and parents still demonstrated fear towards transplantation.
Suitability for e-health of non-pharmacological interventions in connective tissue diseases: scoping review with a descriptive analysis
Authors: Ritschl Valentin , Ferreira Ricardo J O , Santos Eduardo José Ferreira , Fernandes Rúben , Juutila Essi , Mosor Erika , Santos-Costa Paulo , Fligelstone Kim , Schraven Linda , Stummvoll Georg , Salvador Maria , Poole Janet L , van den Ende Cornelia , Boström Carina , Stamm Tanja A
Published: July 2021

Objective

Non-pharmacological interventions support patients with connective tissue diseases to better cope with and self-manage their diseases. This study aimed to map existing evidence on non-pharmacological interventions in patients with systemic lupus erythematosus (SLE), systemic sclerosis (SSc) and mixed connective tissue diseases regarding content, feasibility and potential suitability in an e-health setting.

Methods

A literature search was performed in eight different databases in July 2020. The intervention’s content was extracted using the ‘Better reporting of interventions: template for intervention description and replication (TIDieR) checklist and guide’. A Sankey diagram and descriptive statistics were used to analyse the data and illustrate the relationships between the interventions.

Results

Of 8198 identified records, 119 papers were eligible. One hundred and four of them (87.4%) were conducted between 2000 and 2020, mainly in the USA (SLE n=24 (21.2%), SSc n=16 (14.2%)), Brazil (SLE n=8 (7.1%), SSc n=5 (4.4%)) and Italy (SLE n=0 (0%), SSc n=12 (10.6%)). Fifty-two studies (SLE n=24 (21.2%), SSc n=28 (24.8%)) used multicomponent interventions. The single interventions were physical exercises (SLE n=16 (14.2%), SSc n=17 (15.0%)), coaching/counselling (SLE n=11 (18.0%), SSc n=0 (0%)) and education (SLE n=2 (1.8%), SSc n=3 (2.7%)). Primary outcomes focused on physical function (SLE n=1 (0.9%), SSc n=15 (13.3%)), mouth opening in SSc (n=4 (5.9%)) and physical capacity (SLE n=2 (1.8%), SSc n=1 (0.9%)). No interventions for mixed connective tissue disease were found.

Conclusion

There was a great variety in the intervention’s content due to differences in body structure, activity limitations and participation restrictions in SLE and SSc. These results highlight the need for personalised, multicomponent, non-pharmacological interventions, which could be delivered as e-health interventions.
Chronic critical illness after hypothermia in trauma patients
Authors: Miranda David , Maine Rebecca , Cook Mackenzie , Brakenridge Scott , Moldawer Lyle , Arbabi Saman , O'Keefe Grant , Robinson Bryce , Bulger Eileen M , Maier Ronald , Cuschieri Joseph
Published: July 2021

Objectives

Chronic critical illness (CCI) is a phenotype that occurs frequently in patients with severe injury. Previous work has suggested that inflammatory changes leading to CCI occur early following injury. However, the modifiable factors associated with CCI are unknown. We hypothesized that hypothermia, an early modifiable factor, is associated with CCI.

Methods

To determine the association of hypothermia and CCI, a secondary analysis of the Inflammation and Host Response to Injury database was performed, and subsequently validated on a similar cohort of patients from a single level 1 trauma center from January 2015 to December 2019. Hypothermia was defined as initial body temperature ≤34.5°C. CCI was defined as death or sustained multiorgan failure ≥14 days after injury. Data were analyzed using univariable analyses with Student’s t-test and Pearson’s χ2test, and logistic regression. An arrayed genomic analysis of the transcriptome of circulating immune cells was performed in these patients.

Results

Of the initial 1675 patients, 254 had hypothermia and 1421 did not. On univariable analysis, 120/254 (47.2%) of patients with hypothermia had CCI, compared with 520/1421 (36.6%) without hypothermia who had CCI, p<0.001. On multivariable logistic regression, hypothermia was independently associated with CCI, OR 1.61 (95% CI 1.17 to 2.21) but not mortality. Subsequent validation in 1264 patients of which 172 (13.6%) were hypothermic, verified that hypothermia was independently associated with CCI on multivariable logistic regression, OR 1.84 (95% CI 1.21 to 2.41). Transcriptomic analysis in hypothermic and non-hypothermic patients revealed unique cellular-specific genomic changes to only circulating monocytes, without any distinct effect on neutrophils or lymphocytes.

Conclusions

Hypothermia is associated with the development of CCI in severely injured patients. There are transcriptomic changes which indicate that the changes induced by hypothermia may be associated with persistent CCI. Thus, early reversal of hypothermia following injury may prevent the CCI.

Level of evidence

III.