bluuebunny/crossref_metadata_2025_split huggingface dataset:
Oil-palm management alters the spatial distribution of amorphous silica and mobile silicon in topsoils
Authors: Greenshields Britta , von der Lühe Barbara , Hughes Harold J. , Stiegler Christian , Tarigan Suria , Tjoa Aiyen , Sauer Daniela 
Published: March 2023

Abstract. Effects of oil-palm (Elaeis guineensis Jacq.) management on silicon (Si) cycling under smallholder oil-palm plantations have hardly been investigated. As oil palms are Si accumulators, we hypothesized that management practices and topsoil erosion may cause Si losses and changes in spatial Si concentration patterns in topsoils under oil-palm cultivation. To test this hypothesis, we took topsoil samples under mature oil-palm plantations in well-drained and riparian areas of Jambi Province, Indonesia. The samples were taken from four different management zones within each oil-palm plot: palm circles, oil-palm rows, interrows, and below frond piles. We quantified mobile Si (SiM) and Si in amorphous silica (SiAm) by the extraction of CaCl2 and NaCO3, respectively. Both fractions are important Si pools in soils and are essential for plant–soil Si cycling. We further installed sediment traps on sloping, well-drained oil-palm plantations to estimate the annual loss of soil and SiAm caused by erosion. In well-drained areas, mean topsoil SiAm concentrations were significantly higher below frond piles (3.97 ± 1.54 mg g−1) compared to palm circles (1.71 ± 0.35 mg g−1), oil-palm rows (1.87 ± 0.51 mg g−1), and interrows (1.88 ± 0.39 mg g−1). In riparian areas, the highest mean topsoil SiAm concentrations were also found below frond
piles (2.96 ± 0.36 mg g−1) and in grass-covered interrows (2.71 ± 0.13 mg g−1), whereas topsoil SiAm concentrations of palm circles were much lower (1.44 ± 0.55 mg g−1). We attributed the high SiAm concentrations in topsoils under frond piles and in grass-covered interrows to phytolith release from decaying oil-palm fronds, grasses, and sedges. The significantly lower SiAm concentrations in palm circles (in both well-drained and riparian areas), oil-palm rows, and unvegetated interrows (only in well-drained areas) were explained by a lack of litter return to these management zones. Mean topsoil SiM
concentrations were in the range of ∼ 10–20 µg g−1. They tended to be higher in riparian areas, but the differences between well-drained and riparian sites were not statistically significant.
Soil-loss calculations based on erosion traps confirmed that topsoil erosion was considerable in oil-palm interrows on slopes. Erosion estimates were in the range of 4–6 Mg ha−1 yr−1, involving SiAm losses in a range of 5–9 kg−1 ha−1 yr−1. Based on the observed spatial
Si patterns, we concluded that smallholders could efficiently reduce erosion and support Si cycling within the system by (1) maintaining a grass cover in oil-palm rows and interrows, (2) incorporating oil-palm litter into plantation management, and (3) preventing soil compaction and surface-crust formation.
Numerical simulations of ice accretion on wind turbine blades: are performance losses due to ice shape or surface roughness?
Authors: Caccia Francesco , Guardone Alberto 
Published: March 2023

Abstract. Ice accretion on wind turbine blades causes both a change in the shape of its sections and an increase in surface roughness. These lead to degraded aerodynamic performances and lower power output. Here, a high-fidelity multi-step method is presented and applied to simulate a 3 h rime icing event on the National Renewable Energy Laboratory 5 MW wind turbine blade. Five sections belonging to the outer half of the blade were considered. Independent time steps were applied to each blade section to obtain detailed ice shapes. The roughness effect on airfoil performance was included in computational fluid dynamics simulations using an equivalent sand-grain approach. The aerodynamic coefficients of the iced sections were computed considering two different roughness heights and extensions along the blade surface. The power curve before and after the icing event was computed according to the Design Load Case 1.1 of the International Electrotechnical Commission. In the icing event under analysis, the decrease in power output strongly depended on wind speed and, in fact, tip speed ratio. Regarding the different roughness heights and extensions along the blade, power losses were qualitatively similar but significantly different in magnitude despite the well-developed ice shapes. It was found that extended roughness regions in the chordwise direction of the blade can become as detrimental as the ice shape itself.
Tourmaline Breccias from the Río Blanco-Los Bronces Porphyry Copper District, Chile: Constraints on the Fluid Source and the Utility of Tourmaline Composition for Exploration
Authors: Hohf Michael , Trumbull Robert B. , Cuadra Patricio , Solé Marco 
Published: March 2023

Abstract
Tourmaline-cemented breccia bodies host much of the ore in the Río Blanco-Los Bronces porphyry Cu-Mo deposits. We determined the chemical and B isotope composition of tourmaline as well as S isotope ratios of anhydrite and sulfide minerals to shed light on the composition and origin of mineralizing fluids. Also, the utility of tourmaline as an indicator mineral was tested by comparing mineralized and barren breccias. Tourmaline in mineralized samples has a narrow Mg range (1.5–2 apfu) and variable, generally low Al contents (4–6.5 apfu). A strong negative correlation of Al with Fe indicates monovalent substitution of Al and Fe3+, implying relatively oxidizing fluids. In contrast, tourmaline from barren breccias has a narrower Al range (6–7 apfu), lower and more variable Mg (0.2–2.5 apfu), and a strong negative Mg-Fe correlation, suggesting more reduced fluids with a dominance of Fe2+. These features and the implications of redox contrast may have exploration significance. Tourmaline from all breccia samples yielded δ11B values from 1.8 to 7.9‰. A magmatic source of boron is concluded from the identical B isotope values of granite-hosted tourmaline in the district (1.2–7.7‰) and from the similar range of regional volcanic and porphyry rocks in the Central Andes. The δ34S values of coexisting anhydrite (11.6–14.5‰) and chalcopyrite (–1.5 to –0.2‰) in mineralized breccia give S isotope exchange temperatures of 377° to 437°C, consistent with fluid inclusion temperatures. Total sulfur δ34Sfluid estimates between 1.4 ± 3.9 and 8.8 ± 1.3‰ are broadly consistent with a magmatic source but not well constrained. However, published O and H isotope ratios of quartz and tourmaline from the Río Blanco-Los Bronces breccias have a clear magmatic signature, so this is the preferred scenario. Mass balance simulations of the boron budget show that typical magma flux rates, water contents, and boron concentration for the Central Andes could produce the estimated 107 tons of boron in the Río Blanco-Los Bronces breccias within the 4-m.y. duration of porphyry intrusions if (1) magma accumulated and evolved at midcrustal levels before emplacement and (2) boron partitioned strongly to the fluid phase (DBfluid/melt &gt; 3).
Analysis of Orthopaedic In-Training Examination Trauma Questions: 2017 to 2021
Authors: Fones Lilah , Osbahr Daryl C. , Davis Daniel E. , Star Andrew M. , Ahmed Atif K. , Saxena Arjun 
Published: March 2023

Introduction:
The Orthopaedic In-Training Examination (OITE) is a multiple-choice examination developed by the American Academy of Orthopaedic Surgeons annually since 1963 to assess orthopaedic residents' knowledge. This study's purpose is to analyze the 2017 to 2021 OITE trauma questions to aid orthopaedic residents preparing for the examination.

Methods:
The 2017 to 2021 OITEs on American Academy of Orthopaedic Surgeons' ResStudy were retrospectively reviewed to identify trauma questions. Question topic, references, and images were analyzed. Two independent reviewers classified each question by taxonomy.

Results:
Trauma represented 16.6% (204/1,229) of OITE questions. Forty-nine percent of trauma questions included images (100/204), 87.0% (87/100) of which contained radiographs. Each question averaged 2.4 references, of which 94.9% were peer-reviewed articles and 46.8% were published within 5 years of the respective OITE. The most common taxonomic classification was T1 (46.1%), followed by T3 (37.7%) and T2 (16.2%).

Discussion:
Trauma represents a notable portion of the OITE. Prior OITE trauma analyses were published greater than 10 years ago. Since then, there has been an increase in questions with images and requiring higher cognitive processing. The Journal of Orthopaedic Trauma (24.7%), Journal of the American Academy of Orthopaedic Surgeons (10.1%), and Journal of Bone and Joint Surgery, American Volume (9.3%) remain the most cited sources.
PROMOÇÃO DO CUIDADO DE ENFERMAGEM A PACIENTES EM PALIAÇÃO NO CONTEXTO DA PANDEMIA DE COVID-19: REVISÃO INTEGRATIVA
Authors: Pezzi Junior Sadi Antonio , Bezerra Ana Raisa Salles , De Souza Nathália Maria Lima , Peres Francisca Joyce Gonçalves , Lima Bruna Silva , Ferreira Drissia , Da Cunha Rafael Goes Alves , Leite Ana Claudia de Souza 
Published: March 2023

Introdução: Os cuidados paliativos são um conjunto de práticas realizadas por uma equipe multiprofissional que está situada nos mais diversos níveis de atenção. A enfermagem, integrante dessa equipe de saúde, diante da pandemia da Covid-19, enfrentou dificuldades geradas pelo contexto e precisou se adaptar a diversas situações. Objetivo: Identificar informações na literatura científica acerca da atuação de enfermagem na promoção de ações capazes de fornecer um cuidado a pacientes em paliação durante a pandemia de Covid-19. Metodologia: Revisão integrativa da literatura, realizada de maio de 2022 a janeiro de 2023, que seguiu as recomendações do Instituto Joanna Briggs (JBI) e as etapas de organização e formulação de revisões sistemáticas (PRISMA). A estratégia PICO foi utilizada para formulação da questão do estudo: "Como se dá o cuidado de enfermagem ao paciente em paliação no contexto da pandemia de Covid-19?". Os descritores utilizados, foram: (NURSE CARE) AND (PALLIATIVE) AND (COVID-19). A busca por evidências foi realizada através das bases: BDENF, LILACS, MEDLINE, EMBASE, SCOPUS e COCHRANE. Após passarem pelo processo de análise guiada pelos critérios de inclusão e exclusão, os estudos também passaram por uma análise quanto aos níveis de evidência. Por fim, os resultados levantados foram apresentados por quadros analíticos. Resultados e Discussão: Foram encontrados 7 resultados que se aprofundaram acerca dos cuidados de enfermagem ao paciente em paliação no contexto da pandemia de Covid-19, destacando como a equipe se organizou frente ao desafio de uma pandemia de forma a facilitar a interação profissional/paciente/família, os desafios na promoção do cuidado ao paciente e a importância do trabalho em equipe multidisciplinar. Ressalta-se que a adaptação da enfermagem ocorreu desde o gerenciamento do atendimento ao treinamento da equipe para a utilização das tecnologias, estas que foram utilizadas para facilitar a comunicação entre profissionais e prestar cuidados paliativos remotamente. Conclusão: As consequências da pandemia puderam ser vivenciadas na dificuldade encontrada dos profissionais da enfermagem em se readaptar ao novo contexto, todavia, ressalta-se que a busca pela melhor forma de prestação de cuidados foi realizada incessantemente.
A monocenter retrospective study of the surgical outcomes of adult pilocytic astrocytoma: a small case series and review of the literature
Authors: Chaulagain Dipak , Smolanka Volodymyr , Smolanka Andriy , Havryliv Taras , Nassar Abdalrahman , Ayasi Mujahed 
Published: March 2023

Introduction: The peak age for the development of pilocytic astrocytoma (PA), a type of benign cerebellar tumor, is between 10 and 20 years. Adult PA is extremely rare, and consequently, very little is understood about its characteristics.
Methods: We retrospectively reviewed the records of patients older than 18 years with pathologically proven PA who had surgery to remove the tumor between January 2010 and January 2020 and were followed until January 2022.
Results: Although 32 cases were initially flagged as PA, we included 4 patients (2 male and 2 female) with adult PA. The average age of a male patient at diagnosis was 26.75 years old, and there was no mortality or recurrence. The mean age of female patients at diagnosis was 25 years old. One female was still living after the follow-up period ended. The cause of death in one female patient was unrelated to tumor. Women had a median follow-up of 36 months, and their mean overall survival was 42 months.
Conclusion: PA in adults acts differently than in children. The extent of surgical resection and the location of the tumor influenced the prognosis. When possible, total resection should be the primary treatment, as it promotes good survival rates and low recurrence risk.
Analiza zmiennych kinematycznych nawrotu koziołkowego osób z niepełnosprawnością
Authors: Nosiadek Andrzej , Gajer Barbara 
Published: March 2023

Cel pracy: Celem badań była próba przeprowadzenia analizy zmiennych kinematycznych w poszczególnych fazach nawrotu parapływackiego.
Materiał i metody: Zbadano 2 zawodników z niepełnosprawnością (klasy S6 i S14) w wieku 16 i 21 lat. U każdego badanego indywidualnie zarejestrowano kamerami GOPRO trzy rodzaje nawrotów koziołkowych z różnymi prędkościami dopływania do ściany. Filmy opracowano z wykorzystaniem programu Kinovea.
Wyniki: Wyróżniono fazy nawrotu parapływackiego oraz przeprowadzono analizę zmiennych kinematycznych: sumaryczny czas nawrotu, prędkość dopłynięcia do ściany i prędkość odbicia, odległość od ściany, głębokość zanurzenia oraz kąt odbicia. Obliczone wartości zmiennych wykazywały indywidualne zróżnicowanie i związane były z rodzajem niepełnosprawności zawodników.
Wnioski: Faza obrotu właściwego, jako najdłużej trwająca część nawrotu koziołkowego, wraz z analizą zmiennych umożliwia wprowadzenie istotnych zmian w celu skrócenia czasu nawrotu parapływackiego. Zdefiniowane zmienne oraz ich wzajemne zależności znacząco wpływają na realizację nawrotu. Kąt odbicia i prędkość odbicia zawodnika od ściany w znacznym stopniu warunkują dalszy przebieg i efektywność nawrotu. Zindywidualizowana analiza zmiennych kinematycznych pozwala na obserwację występujących przeciążeń podczas nawrotu koziołkowego, a tym samym umożliwia niezwłoczną korektę i zminimalizowanie ryzyka wystąpienia negatywnych skutków intensywnego treningu pływackiego.
Application of Signal Classifiers in Auditory Evoked Potentials for the Detection of Pathological Patients
Authors: Baldiviezo M. G. , Barbería J. L. , Bontempo C. B. , Corsaro Y. , Fernandez Biancardi F. , Hernando M. R. , Licata Caruso L. , Paglia A. , Rodríguez M. R. , Legnani W. E. 
Published: March 2023

The auditory brainstem response (ABR) by evoked potentials is a widespread auditory pathway assessment technique. This is largely applied due to its cost-effectiveness, practicality and ease of use. In contrast, it requires a trained professional to carry out the analysis of the results. This motivates several research efforts to increase the independence of the diagnostician. To this end, the present work shows the ability of three signal classification tools to differentiate ABR studies of normal hearing subjects from those who may have some pathology. As a starting point, the PhysioNet short term auditory evoked potentials databases are used to calculate the features later applied to construct the dataset. The features used are diverse classes of permutation entropy, fractal dimension, the Lyapunov exponent and the zero crossing rate. To ensure more accurate results, a Montecarlo simulation of one thousand trials is employed to train the classifiers and test the results. The goodness of the classification is performed upon the basis of the computation of quality parameters, such as the area under the receiver operating characteristic curve (ROC), the F1 score coefficient and the accuracy. In all the cases the methodology proposed gives high performance results that encourage the line of research of the present work.
Cuando justificar no significa lo mismo en español y en francés
Authors: Piedehierro Sáez Carlota 
Published: March 2023

Este trabajo presenta un análisis contrastivo de la locución española en efecto y de la francesa en effet cuando ambas funcionan como conectores y vehiculan un sentido de justificación para, después, poder explicar la no equivalencia entre ambas. Para hacerlo, se sirve de un modelo de análisis basado en cuadros discursivos, una propuesta de representación del funcionamiento y el significado de los marcadores del discurso adscrita al marco teórico de la llamada Pragmática integrada (Anscombre y Ducrot, 1976, 1983). Tras el análisis contrastivo de en efecto y en effet como conectores de justificación, se presenta una discusión sobre las ventajas de aplicar este modelo frente a otras propuestas de análisis de marcadores del discurso, en especial como una alternativa frente a las limitaciones que presenta el concepto de instrucción procedimental tomado de la Teoría de la relevancia, mayoritario en los estudios sobre marcadores en el ámbito hispánico.
Perception auditive des effets de différents masques anti-COVID sur la parole conversationnelle, déclamée et le chant : étude de cas
Authors: Pillot-Loiseau Claire , Harmegnies Bernard 
Published: March 2023

Quels sont les effets perceptifs, en environnement calme, du port de six types de masques anti-COVID sur l’identification et la discrimination de consonnes, celle de phrases parlées, déclamées et chantées en français produits par un homme et une femme ? 21 auditeurs ont identifié puis discriminé les consonnes /p, t, k, b, d, g, f, s, ʃ, v, z, ʒ/ en intervocalique produites par la locutrice, puis 39 auditeurs ont discriminé une phrase parlée, déclamée (par un locuteur et une locutrice) et chantée (par la locutrice, chanteuse) avec et sans masque : l’identification consonantique est peu affectée, excepté pour /b/ avec le masque à fenêtre transparente, mais la présence des masques à fenêtre transparente et FFP2 est fortement discriminée et avec certitude par rapport à la condition sans masque, à l’exception du chant qui semble peu sensible à l’atténuation de timbre entendue et verbalisée par les auditeurs pour les autres tâches.
collocations intensives dans la poésie de Villon et leurs traductions en espagnol et en catalan
Authors: Yahubovich Yauheniya , Català Dolors 
Published: March 2023

L’expression de l’intensité a suscité l’intérêt de nombreux chercheurs en ce qui concerne le français contemporain, il n’en est pas de même pour le français médiéval. Dans le cadre du projet COLINDANTE, nous nous sommes attachées à observer comment elle se manifestait chez un auteur comme Villon. En nous basant sur la notion de collocation de la théorie Sens-Texte, nous nous sommes centrées sur un des types d’intensifieurs possibles : les comparaisons en comme et nous en avons fait un inventaire complet.
Dans notre article nous nous proposons tout d’abord de préciser brièvement le cadre théorique qui soutient notre recherche notamment la notion de collocation, pour analyser ensuite les différents exemples relevés en français médiéval et en français contemporain, puis nous comparerons leurs traductions en espagnol et en catalan.
oral au service de l'apprentissage de la grammaire du français langue étrangère
Authors: Kalmbach Jean-Michel 
Published: March 2023

Dans l’enseignement du français (langue maternelle ou étrangère), l’oral est souvent vu comme un facteur de trouble, parce qu’il met en question un grand nombre de règles de la norme de l’écrit. Dans l’enseignement du FLE, où la description et la compréhension de l’oral jouent pourtant un rôle bien plus important que pour les locuteurs natifs, il reste, du fait de la tradition et de la préséance de l’écrit, essentiellement relégué au rang de curiosité. Dans cet article, nous montrons que l’on pourrait au contraire l’exploiter et le valoriser en le mettant au service de l’apprentissage de la grammaire du français. Nous prendrons comme exemple la règle « de cacophonie » (chute de l’article des/duaprès la préposition de), qui est source de grandes difficultés dans l’apprentissage du français et qui bénéficie grandement d’un traitement par le biais de l’oral.
réduplication à valeur d'insistance dans une grammaire accueillant la langue des conversations familières
Authors: Dostie Gaétane 
Published: March 2023

Cet article formule une proposition concrète quant à la manière dont la réduplication pragmatique à valeur d’insistance (RPI) pourrait être abordée dans une grammaire descriptive accordant une place de choix à la langue orale, notamment à la langue des conversations à bâtons rompus (ou familières).
L’atteinte de l’objectif fixé passe par l’élaboration d’une rubrique grammaticale qui s’ouvre sur une présentation générale du sujet traité et se termine sur une discussion de quelques cas saillants de réduplication, tels qu’ils ont cours dans les conversations à bâtons rompus. La rubrique esquissée comporte cinq sections, consacrées aux thématiques suivantes. On s’attarde :
- aux diverses sortes de réduplication discutées dans la littérature sur le sujet et à la place occupée par la RPI dans ce vaste ensemble ;
- à la valeur modale de la RPI et à son lien avec les actes de langage ;
- à sa valeur iconique ;
- aux traits sémantiques généraux associés aux mots usuellement pragmatiquement rédupliqués dans les conversations familières ;
- au poids interactionnel rattaché à certains cas récurrents de RPI eu égard à des stratégies en lien avec la politesse linguistique.
énoncés du Duςa:ʔ en arabe tunisien : Caractérisation linguistique et gestion de la variation
Authors: Ouerhani Béchir 
Published: March 2023

Les énoncés du duςa:ʔ constituent un genre discursif particulier, spécifique à la langue arabe et aux différents sous-systèmes de dialectes dans les pays arabes. Il s’agirait, selon nous, d’un type particulier de pragmatèmes ; ils offrent une combinatoire interne contrainte, sous forme de moules à éléments préétablis et un contenu sémantique contraint par des situations énonciatives très codées culturellement, le tout ayant une signification globale définie par l’acte d’énonciation lui-même. Nous proposons dans cette contribution d’aborder deux aspect : d’abord, en faire le point en exposant les principales caractéristiques linguistiques des énoncés du duςa:ʔ ; Ensuite, proposer les critères et les axes nécessaires pour une description systématique de ces énoncés dans le dialecte tunisien, tout en prenant en compte les différentes variations de leur usage, que l’enquête de terrain met en évidence.