bluuebunny/crossref_metadata_2025 huggingface dataset:
Satellite precipitation product assessment and correction technique selection at sub-basin scale for maximum annual events. Case study: Acaponeta River basin
Authors: Bonilla-López Edith , Lobato-Sánchez René , Medellín-Azuara Josué , Patiño-Gómez Carlos
Published: January 2025

Satellite precipitation products (SPP) are increasingly being used for detailed hydrological studies due to scarce and discontinuous precipitation observations at different spatial and temporal scales. However, to evaluate its full utility, it is necessary to assess and correct the bias between estimated and observed precipitation (OP). The aim of this paper is to evaluate the CHIRPSv2.0 product for maximum annual events and different climatological conditions based on in-situ observations, using statistical metrics and selecting from linear scaling (LS), local intensity scaling (LOCI) and power transformation (PT) the appropriate bias correction technique (CT), at point and sub-basin scale, improving the maximum annual precipitation records for the period 2001-2020 in the Acaponeta River basin, Mexico. Previous applications of bias CT have focused on broader temporal scales rather than specific maximum events. Differences in the performance of the correction methods were identified between point and sub-basin scales. PT presented a good performance at the point scale, in contrast to percentual bias (PBIAS), which resulted in a great overestimation at the sub-basin scale in the upper zone for the average and dry years, while for the wet year, it overestimated in the lower part. Although LS and LOCI generally observed a good PBIAS reduction at the gauge stations, LS overestimated at the sub-basin scale overall. LOCI showed better SPP corrections in the middle and lower zones and a wider range of overestimation for the upper basins in the middle and wet years. The corrected annual maximum estimated values for the revised period are useful for hydrological analysis in the context of flood risk assessment.
Assessing the Experiences of Sexual and Gender Minority Applicants to Orthopaedic Surgery Residency
Authors: Weaver Douglas J. , Dagher Tanios , Duong Ngoc , Winfrey Sara , Koo Alexander , Balach Tessa
Published: January 2025

Introduction:

The rate of sexual and gender minority (SGM) orthopaedic surgeons is far less than in other specialties, and the field has, in part, had significant difficulty attracting SGM applicants. To provide a more welcoming environment, identifying where applicants experience discrimination along medical training must be of paramount concern. Our objective was to understand the challenges faced by SGM medical students applying into orthopaedic surgery.

Methods:

An anonymous survey was sent to applicants of a single orthopaedic residency program in 2023, soliciting demographics, exposure to lesbian, gay, bisexual, transgender, and/or queer (LGBTQ) mentors, and experiences with discrimination. Data were stratified by sexual orientation, and univariate analysis was conducted using chi-squared tests. Afterward, logistic regressions adjusted for gender, age, and race were performed.

Results:

The overall response rate was 15.4% (n = 136/881). Fifteen percent (n = 20/135) identified as LGBTQ. Sixty-one percent of LGBTQ-identifying applicants experienced slurs and/or hurtful comments during orthopaedic rotations and research experiences, compared with 28% of their heterosexual peers (p < 0.001). In adjusted logistic regression models, LGBTQ respondents were 3.8 times more likely to report experiencing a hostile environment during training (p = 0.04) and 4.9 times more likely to have reported facing discrimination (p = 0.04) compared with heterosexual participants. Approximately 58% of respondents reported never having interacted with an LGBTQ-identifying orthopaedic attending, with only 5% reporting frequent interaction.

Conclusion:

LGBTQ-identifying orthopaedic surgery applicants experience barriers related to their sexual identity, including derogatory comments, hostile clinical environments, and lack of LGBTQ mentorship. These findings highlight challenges inherent to the residency application process that may disproportionately affect persons from sexual minority groups. The recognition of such challenges can help to optimize the establishment of informed policies regarding mistreatment and practices regarding diversity and inclusion.
Incorporating ecosystem goods and services (EGS) into US Army Corps of Engineers (USACE) project planning : a retrospective analysis
Authors: Cushing Janet , Komlos Shawn , Barnes Tomma , Theiling Charles , Murray Elizabeth
Published: January 2025

Ecosystem goods and services (EGS) have been promoted as a way to effectively examine trade-offs and improve communication of project- related environmental outcomes in terms of human well-being. Notably, EGS provide a construct that seems capable of enhancing the capacity to communicate with stakeholders about how ecosystem restoration and rehabilitation activities can affect them—and in ways that are more meaningful to the public than the habitat metrics currently employed. The concept of EGS is not new to the US Army Corps of Engineers (USACE) Civil Works Program. This document presents a review of past attempts to apply EGS assessment techniques in the context of USACE project planning and then identifies obstacles met in those efforts that could be avoided in the future. This report is not intended to showcase approaches to consider EGS in planning studies. Rather, this paper uses case studies to illustrate the challenges of considering ecosystem services in the context of planning studies. These challenges will need to be addressed in any future applications of EGS assessments to USACE Civil Works Program decision-making.
Geomorphic assessment of the St. Francis River Phase II : between Wappapello Lake and Holly Island
Authors: Girdner Sarah , Lamport J. , Enlow Holly
Published: January 2025

Significant sedimentation issues persist within the St. Francis Basin as a result of extensive drainage alterations. The objective of this study is to characterize the bed and bank sediment throughout the study reach and identify potential sources of sediment contributing to the sanding issues below Holly Island. The sedimentation below Holly Island increases the Memphis District’s maintenance needs in the St. Francis River Basin by requiring millions of dollars for channel cleanout and bank stabilization projects. This effort synthesizes prior geomorphic studies and existing survey data to break the study reach into seven geomorphic reaches of interest. Simultaneously, 151 bed samples and 137 bank samples were collected to characterize the sediments within the study reach to develop a data dictionary for future sediment budget development. Results show the St. Francis River is a poorly sorted, sand-bed river overlain by 10 to 20 feet of silts and clays along the banks. Iron Bridge to Highway U (Reach 1-3) may reach pseudo-stability so long as existing grade-control structures and bank stabilization features remain. Reach 6, between St. Francis and Brown’s Ferry, is evolving with one cutoff forming and one cutoff recently complete. This reach may be a source of sediment to downstream reaches.
El transporte intermodal en España: análisis comparativo respecto a Europa, retos y perspectivas futuras como objetivo estratégico
Authors: Gutiérrez-Aragón Óscar , Gassiot-Melian Ariadna , Guillén-Pujadas Miguel , Sánchez-Casademunt Oriol
Published: January 2025

La apuesta por un transporte intermodal de mercancías o intermodalidad eficiente define una de las líneas estratégicas más importantes de la Unión Europea, teniendo, además, unas notables implicaciones ambientales. En el caso concreto de España, la intermodalidad es muy limitada, y tiene su principal inconveniente en el ancho diferente de vía ferroviaria. El objetivo principal de este trabajo es determinar la situación actual del transporte de mercancías y la intermodalidad en España para delimitar diferentes objetivos estratégicos. La metodología aplicada en el estudio combina el análisis cuantitativo de datos oficiales sobre el transporte de mercancías obtenidos a partir de fuentes secundarias con el análisis cualitativo de los resultados de seis entrevistas semiestructuradas realizadas a profesionales del sector (fuente primaria). Los resultados del estudio advierten de que en España el transporte intermodal se encuentra bastante alejado de la media europea, siendo el segundo país continental de Europa que transporta una mayor cantidad de mercancías por carretera. Se concluye que, aunque actualmente la intermodalidad en España no es eficiente ni es un objetivo estratégico, deberá serlo en el medio plazo, pues, con la inversión y planificación adecuadas, contribuirá a propiciar una ordenación del transporte de mercancías eficiente y sostenible.
Grado de fiabilidad de la evaluación del análisis de Bolton en modelos virtuales tridimensionales versus modelos de yeso
Authors:   , Loma Salcedo Humberto
Published: January 2025

INTRODUCCIÓN: El análisis de Bolton se emplea para determinar anomalías con respecto a la masa dentaria, con fines de diagnóstico y planificación del tratamiento, la posibilidad de utilizar un método digital, que fue introducido y probado para medir el tamaño del diente mesiodistal, es una alternativa atractiva, además por la creciente aceptación de la tecnología dental digital, generó que los modelos de estudio digitales se vuelvan populares en entorno a la ortodoncia. OBJETIVO: evaluar el grado de fiabilidad de la evaluación del análisis de Bolton en modelos virtuales tridimensionales versus modelos de yeso. MATERIALES Y MÉTODOS: Se realizó una búsqueda bibliográfica en las principales bases de datos de la literatura científica internacional sobre ciencias de la salud: Medline, a través de PubMed, SciELO, Lilacs, Embase. Se incluyeron artículos de revisión publicados entre el año 2000 hasta octubre 2021. RESULTADOS: En un estudio donde evaluaron y compararon el diagnóstico dental utilizando diferentes tecnologías de escaneo, demostró ser el escáner de sobremesa como la mejor opción para la digitalización de modelos dentales, pero esto no quita merito alguno al CBCT y al escáner laser intraoral, quienes siguen siendo una opción asequible válida para la digitalización de modelos 3D con resultados que se encuentran dentro del rango “clínicamente aceptable”. CONCLUSIONES: Los modelos digitales 3D generados con escáneres intraorales y escáneres extraorales son confiables y precisas en comparación con las impresiones convencionales y que ahorra tiempo, en la mayoría de casos se hallaron diferencias estadísticamente significativas, pero de poca relevancia clínica.
Competitividad exportadora y su efecto en el comercio internacional de la palta hass peruana en el periodo 2016-2021
Authors:   , Alvarez Robles Kelly Mariafe
Published: January 2025

En una era donde la competencia global en la agroexportación es más feroz que nunca, este estudio se sitúa en el epicentro del comercio internacional, con un enfoque particular en la palta Hass, un producto agrícola cuya demanda y valor han aumentado significativamente en los últimos años. Bajo ese marco, este trabajo tuvo como objetivo determinar si la competitividad exportadora afecta en el comercio internacional de la palta Hass durante el periodo 2016-2021. De forma que, la metodología empleada fue de tipo aplicada, enfoque cuantitativo, alcance explicativo, diseño no experimental y retrospectivo. Asimismo, como técnica, se usó el análisis documental asociado a datos anuales, desde 2016 hasta 2021, que se encuentran emparentados a la producción y rendimiento de la palta Hass en el Perú, así como a los precios y volúmenes de las exportaciones peruanas de la mercadería en cuestión. Los resultados muestran que, si bien, a través de una regresión lineal simple, no se acepta la hipótesis general sobre si la competitividad exportadora afecta de manera significativa en el comercio internacional de la palta Hass durante el periodo 2016-2021; por el contrario, sí se acepta la hipótesis específica acerca de si la producción afecta de manera significativa en el comercio internacional de la palta Hass durante el periodo 2016-2021.
Acoso psicológico en el trabajo y calidad de vida profesional en enfermeras/os de Instituciones Hospitalarias, Lima: un estudio transversal
Authors:   , Toribio Quispe Estefani Susan
Published: January 2025

Objetivo: Analizar la relación entre el acoso psicológico en el trabajo (APT) y la calidad de vida profesional (CVP) en enfermeras/os de instituciones hospitalarias en Lima, Perú. Materiales y Métodos: Estudio cuantitativo, transversal, analítico-observacional, un subanálisis de datos de un proyecto aprobado en Chile y Perú. Se seleccionó una muestra por conveniencia desde la base de datos del estudio principal, utilizando varianza máxima, población infinita y un intervalo de confianza del 95%. Se emplearon el Cuestionario de Acoso Psicológico en el Trabajo (CAPT) y ProQOL para medir APT y CVP, respectivamente. Resultados: La muestra incluyó 384 enfermeras; el 35.7% autoreportó haber vivido acoso y el 29.92% cumplía con los criterios operativos. Puntajes bajos de APT se asociaron con mayores niveles de satisfacción por compasión (SC), mientras que puntajes altos se relacionaron con mayores niveles de Burnout (BO) y estrés traumático secundario (STS), hallazgos estadísticamente significativos. El análisis operacionalizado de acoso psicológico en el trabajo no mostró resultados consistentes con lo previamente señalado. Conclusiones: Se identificó una relación entre APT y CVP, pero esta no fue consistente con la definición operativa de acoso. Estos hallazgos podrían explicarse por el desarrollo de resiliencia en los profesionales. Se requieren más estudios para comprender mejor el fenómeno.
RNA-multi-omics in single cells reveal rhythmical RNA reshaping during human and mouse oocyte maturation
Authors: huan Yao , Zhang Danru , Jin Haixia , Guo Yanjie , Liu Yan , Wang Shengnan , Yuan Shenli , LU Gang , Sun Ying-Pu
Published: January 2025

Most RNA molecules are present with m7G-cap and Poly(A)-tail at the 5’ or 3’ termini. However, existing next-generation sequencing (NGS) based single-cell RNA-sequencing methods are limited in capturing complete RNA molecules, often missing critical information at the 5’ or 3’ termini. Here, we developed a method named Cap to Tail sequencing application (C2T-APP) and simultaneously characterized the m7G cap, poly(A) tail structure, and gene expression level for the intact RNA molecules in single cells. C2T-APP distinguished the N6, 2′-O-dimethyladenosine modification (m6Am) from N6-methyladenosine (m6A) modification with our published single-cell m6A sequencing (scm6A-seq) data. During oocyte maturation, we found a positive correlation between m7G and m6Am to translation efficiency, and finely dissected the step-wised maternal RNA de-capping and de-tailing of different types of genes. Strikingly, we found that maternal RNA metabolism is strictly regulated by the translation process in the oocytes. Furthermore, we profiled the single-cell RNA-multi-omics of human oocytes of different qualities and the defect of epi-transcriptome features, including m6A, m6Am, m7G, and Poly(A) structure of maternal RNA in the oocytes with poor quality were detected. Our results provided valuable resources and novel insights into human oocyte maturation, which is helpful for oocyte selection for assisted reproductive technology (ART).
Micropillar-induced changes in cell nucleus morphology enhance bone regeneration by modulating the secretome
Authors: Ameer Guillermo , Wang Xinlong , Li Yiming , Lin Zitong , Pla Indira , Gajjela Raju , Mattamana Basil , Joshi Maya , Liu Yugang , Wang Huifeng , Zun Amy , Wang Hao , Wai Ching , Agrawal Vasundhara , Dunton Cody , Duan Chongwen , Jiang Bin , Backman Vadim , He Tong Chuan , Reid Russell , Luo Yuan
Published: January 2025

Nuclear morphology, which modulates chromatin architecture, plays a critical role in regulating gene expression and cell functions. While most research has focused on the direct effects of nuclear morphology on cell fate, its impact on the cell secretome and surrounding cells remains largely unexplored, yet is especially crucial for cell-based therapies. In this study, we fabricated implants with a micropillar topography using methacrylated poly(octamethylene citrate)/hydroxyapatite (mPOC/HA) composites to investigate how micropillar-induced nuclear deformation influences cell paracrine signaling for osteogenesis and cranial bone regeneration. In vitro, cells with deformed nuclei showed enhanced secretion of proteins that support extracellular matrix (ECM) organization, which promoted osteogenic differentiation in neighboring human mesenchymal stromal cells (hMSCs). In a mouse model with critical-size cranial defects, nuclear-deformed hMSCs on micropillar mPOC/HA implants elevated Col1a2 expression, contributing to bone matrix formation, and drove cell differentiation toward osteogenic progenitor cells. These findings indicate that micropillars not only enhance the osteogenic differentiation of human mesenchymal stromal cells (hMSCs) but also modulate the secretome, thereby influencing the fate of surrounding cells through paracrine effects.
Evaluation and Enhancement of Large Language Models for In-Patient Diagnostic Support
Authors: Yuan Yixuan
Published: January 2025

In-patient diagnosis demands complex clinical decision-making based on comprehensive patient information, posing critical challenges for clinicians. Despite advancements in large language models (LLMs) in medical applications, limited research focused on artificial intelligence (AI) in-patient diagnostic support systems, due to the lack of large-scale patient datasets. Moreover, existing medical benchmarks typically concentrated on medical question-answering and examinations, ignoring the multifaceted nature of clinical decision-making in in-patient settings. To address these gaps, we first developed the In-Patient Diagnostic Support (IPDS) benchmark from the MIMIC-IV database, encompassing 51,274 cases across nine departments and 17 major disease categories alongside 16 standardized treatment pathways. Then, we proposed the Multi-Agent In-patient Diagnostic Support (MAIDS) framework, including a triage agent managing the patient admission flow, a clinician agent for each department serving as the primary decision maker, and a chief agent for each department overseeing disease assessments and treatment pathways. Experiments in disease assessment accuracies showed MAIDS improved by 20.70% compared to the state-of-the-art LLM. We also found MAIDS demonstrated significant clinical compliance, outperforming three board-certified clinicians by 2%-4%, establishing a foundation for in-patient diagnostic support systems.
Habenula neural circuitry drives negative self-cognitions
Authors: Kung Po-Han , Greaves Matthew , Guerrero-Hreins Eva , Harrison Ben , Davey Christopher , Felmingham Kim , Carey Holly , Sumithran Priya , Brown Robyn , Moffat Bradford , Glarin Rebecca , Steward Trevor
Published: January 2025

Self-related cognitions are integral to personal identity and psychological wellbeing. Persistent engagement with negative self-cognitions can precipitate mental ill health; whereas the ability to restructure them is protective. Here, we leverage ultra-high field 7T fMRI and dynamic causal modelling to characterise a negative self-cognition network centred on the habenula – a small midbrain region linked to the encoding of punishment and negative outcomes. We model habenula effective connectivity in a discovery sample of healthy young adults (n = 48) and in a replication cohort (n = 56) using a novel cognitive restructuring task during which participants repeated or restructured negative self-cognitions. The restructuring of negative self-cognitions elicits an excitatory effect from the habenula to the posterior orbitofrontal cortex that is reliably observed across both samples. Furthermore, we identify an excitatory effect of the habenula on the posterior cingulate cortex during both the repeating and restructuring of self-cognitions. Our study provides the first evidence in humans demonstrating the habenula’s contribution to processing self-cognitions. These findings yield novel insights into habenula’s function beyond processing external reward/punishment to include abstract internal experiences.
A binary merger product as the direct progenitor of a Type II-P supernova
Authors: Niu* Zexi , Sun* Ning-Chen , Zapartas* Emmanouil , Souropanis Dimitris , Cui Yingzhen , Maund Justyn R. , Andrews Jeff J. , Briel Max M. , Fraser Morgan , Gossage Seth , Kruckow Matthias U. , Liotine Camille , Liu Zhengwei , Srivas Philipp M. , Teng Elizabeth , Wang Xiaofeng , Yang Yi , Liu Jifeng
Published: January 2025

Type II-P supernovae (SNe II-P) are the most common type of core-collapse SNe in the local Universe. The progenitors of SNe II-P have been directly observed in fortuitous pre-explosion images with effective temperatures and luminosities consistent with red supergiants (RSGs). For a long time such RSGs were believed to originate from single stars. Recent binary population synthesis, however, predict that many observed SNe II-P should actually arise from interacting binaries. This binary progenitor channel still lacks observational evidence since it is difficult to distinguish whether a detected progenitor comes from the single or binary star system simply based on its appearance in pre-explosion images. In this work, we report the discovery of a RSG progenitor of the Type II-P SN 2018gj. While the effective temperature and luminosity are similar to those of other SN II-P progenitors, it is located in a very old environment and the short plateau of the SN light curve suggests a very low-mass H-rich envelope. These characteristics are best explained if the progenitor is the merger product of a close binary system, in which the progenitor increased its He-core mass but lost much of its H-rich envelope during the back-and-forth mass transfer with a binary companion before merging. Similar analysis for a sample of nearby SNe II-P shows that at least 18–24% of them are likely to originate from binary progenitors. Our discovery provides the first compelling observational evidence that interacting binaries are a viable and potentially significant channel for SN II-P progenitors.

*These authors contributed equally: Zexi Niu, Ning-Chen Sun, Emmanouil Zapartas.
Matrix Plainification Leads to High Thermoelectric Performance in Plastic Cu2Se/SnSe Composites
Authors: Tang Guodong , Ying Pan , Jian Qingyang , Gong Yaru , Song Tong , yang yuxuan , Geng Yang , Huang Junquan , Sun Rongxin , Chen Chen , Shen Tao , Li Yanan , Dou Wei , Liang Congmin , Liu Yuqi , Xiang Deshang , Feng Tao , Zhang Yongsheng , Song Kun , Zhang Yang , Wu Haijun
Published: January 2025

Thermoelectric technology exhibits significant potential for applications in power generation and electronic cooling. In this study, we report the achievement of exceptional thermoelectric performance and high plasticity in stable Cu2Se/SnSe composites. A novel matrix plainification strategy was employed to eliminate lattice vacancies within the Cu2Se matrix of the Cu2Se/SnSe composites, resulting in a marked improvement in carrier mobility. This increase in carrier mobility corresponds to a substantial enhancement of the power factor. Furthermore, the presence of quasi-coherent interfaces induces strong phonon scattering, which effectively reduces lattice thermal conductivity without compromising carrier mobility. Consequently, an outstanding figure of merit (ZT) of 3.3 was attained in the Cu2Se/SnSe composite. Additionally, the presence of high-density nanotwins imparts remarkable plasticity to the composite, yielding a compressive strain of 12%. The secondary phase contributes to the stability of the composite by hindering the extensive migration of Cu ions through bonding interactions. Our findings present a novel strategy for significantly enhancing the thermoelectric performance of composite semiconductors, with potential applicability to other thermoelectric systems.
Localization of Seizure Onset Zone based on Spatio-Temporal Independent Component Analysis on fMRI
Authors: Sadjadi Seyyed Mostafa , Ebrahimzadeh Elias , Fallahi Alireza , Habibabadi Jafar Mehvari , Nazem-Zadeh Mohammad-Reza , Soltanian-Zadeh Hamid
Published: January 2025

Localization of the seizure onset zone (SOZ) as a step of presurgical planning leads to higher efficiency in surgical and stimulation treatments. However, the clinical localization including structural, ictal, and invasive data acquisition and assessment is a difficult and long procedure with increasing challenges in patients with complex epileptic foci. The interictal methods are proposed to assist in presurgical planning with simpler data acquisition and higher speed. In this study, spatio-temporal component classification is presented for the localization of epileptic foci using resting-state functional magnetic resonance imaging (rs-fMRI) data. This method is based on spatio-temporal independent component analysis (ST-ICA) on rs-fMRI with a component-sorting procedure upon dominant power frequency, biophysical constraints, spatial lateralization, local connectivity, temporal energy, and functional non-Gaussianity. This method aimed to utilize the rs-fMRI potential to reach a high spatial accuracy in localizing epileptic foci from interictal data while retaining the reliability of results for clinical usage. Thirteen patients with temporal lobe epilepsy (TLE) who underwent surgical resection and had seizure-free surgical outcomes after a 12-month follow-up were included in this study. All patients had pre-surgical structural MRI and rs-fMRI while post-surgical MRI images were available for ten. Based on the relationship between the localized foci and resection, the results were classified into three groups “fully concordant”, “partially concordant”, and “discordant”. These groups had the resulting cluster aligned with, in the same lobe with, and outside the lobe of the resection area, respectively. This method showed promising results highlighting valuable features as SOZ functional biomarkers. Contrary to most methods which depend on simultaneous EEG information, the occurrence of epileptic spikes, and the depth of the epileptic foci, the presented method is entirely based on fMRI data making it independent from such information and considerably easier in terms of data acquisition, artifact removal, and implement.
Laboratory Re-Crystallization Synthesis as an Analogue for Hydrothermal Synthesis of Naturally Occurring Minerals
Authors: IGUNIWEI Paul Biedomo , NWAEDOZIE Jonathan Maduka , MOHAMMED Ya’u
Published: January 2025

Materials phase characterization results from a laboratory-based synthesis presented striking similarities with some minerals in the earth’s crust. A laboratory recrystallization synthesis method produced a sucrose potassium nitrate (KNSU) composite propellant doped with magnesium oxide MgO in triplicate (5%, 10% and 15%). The samples were characterized for crystallinity and phase/molecular composition. The XRD results showed a composite with multiple crystal systems, confirming the presence of Orthorhombic/KNO3, and Cubic/MgO systems. Monoclinic/Al2(PO4) (OH)3 was present only in the (10%) and (15%) MgO/KNSU ratios, confirming the crystalline nature and property of the KNSU MgO-doped propellant. Phase compositional analysis provides quantitative average percentages of Niter 43.9, Periclase 14.9, Chaoite 2.1, Quartz 9.2, Marialite 19.7. While carpathite mineral 4.4% was found only in the 5% MgO doped KNSU composite, Augelite mineral was found in the 10% and 15% MgO doped samples as an average of 13.0%. Phase molecules identified includes (-C≡C-)n for Chaoite, C24 H12 for Carpathite, SiO2 for Quartz, Na6.32 Ca1.52 (Al7.37 Si16) for Marialite and Al2(PO 4)(OH)3 for Augelite. Compared to research found in the literature, it was found that nature has also produced these minerals with similar qualitative characterization outcomes. The cause for these similar outcomes was deduced to come from the similar production methods of recrystallization and hydrothermal synthesis. One can further infer that laboratory recrystallization techniques can be used to model for research studies mimicking nature’s method(s) of synthesizing the minerals found in the earth’s crust.
Numerical study of the influence of hydrofoil hydrodynamic performance considering near-free surface
Authors:   School of Naval Architecture and Ocean Engineering, Dalian Maritime University, Dalian, 116026, China, Wei Yuanhui , Zhang Jianing ,   School of Naval Architecture and Ocean Engineering, Dalian Maritime University, Dalian, 116026, China, Liu Kaihao ,   School of Naval Architecture and Ocean Engineering, Dalian Maritime University, Dalian, 116026, China, Pan Jiazhen ,   School of Naval Architecture and Ocean Engineering, Dalian Maritime University, Dalian, 116026, China, Zhang Lei ,   School of Naval Architecture and Ocean Engineering, Dalian Maritime University, Dalian, 116026, China, Chen Weimin ,   State Key Laboratory of Maritime Technology and Safety, Shanghai Ship and Shipping Research Institute Co., Ltd, Shanghai, 200135, China, Zhang Qingshan ,   State Key Laboratory of Maritime Technology and Safety, Shanghai Ship and Shipping Research Institute Co., Ltd, Shanghai, 200135, China
Published: January 2025

Bionic flapping hydrofoil motion is increasingly used in bionic underwater robots. However, many scholars have focused their attention on the navigation problem in deep-water environments, thus ignoring changes in the hydrodynamics of hydrofoils under the action of the near-free-surface effect. This paper studies and explores the hydrofoil motion in near-free surfaces through the RANS viscous flow numerical simulation method, combined with overset mesh and adaptive mesh technology. Three different forms of motion are studied respectively, including a stationary fixed, a single-degree-of-freedom pitch and a two-degree-of-freedom heaving-pitching coupled hydrofoil. The effects of varying the immersion depth d on the lift and thrust generated were analyzed. Results indicate noticeable differences in the free surface action among different motion forms. When the water depth is less than one chord length C, the lift and thrust of the three motion forms decreased rapidly decrease. When d/C=1~1.5, the static fixed hydrofoil lift and thrust gradually approach the deep-water state. When d/C>2, the pitching motion of a single degree of freedom also tends to be stable. The two-degree-of-freedom motion is d/C>3. This finding shows that the effect of the near-free surface is closely related to the vertical motion. The greater the vertical motion is, the more severe the effect.
Researching vocational teachers’ professional identity
Authors: Vignjević Korotaj Bojana
Published: January 2025

The specifics of vocational teachers’ careers and their transition from industry to the education system, as well as the demands of continued professional development after they become teachers, can create tensions in their professional identity. The purpose of this paper is to examine the influences on vocational teachers’ professional identity from macro, meso, and micro perspectives to provide a holistic view of the complexity of their professional identity. The literature review has shown that at the macro level it is necessary to explore how educational policies make their way into vocational schools and to vocational teachers as well as how status of vocational education and training in a country can influence vocational teachers. At the meso level it is important to study the relationships vocational teachers form with different stakeholders, as well as institutional support in terms of continuous professional development. At the micro level it is valuable to gain insight into vocational teachers’ personal biographies by exploring their social background, prior educational and professional experiences, and reasons for choosing the teaching profession.
Djeca u riziku socijalne isključenosti u sustavu ranog i predškolskog odgoja i obrazovanja
Authors: Bouillet Dejana , Pažur Monika , Antulić Majcen Sandra
Published: January 2025

Kvalitetna pedagoška praksa jedan je od ključnih mehanizama podrške obiteljima i djeci u riziku socijalne isključenosti (RSI) u sustavu ranog i predškolskog odgoja i obrazovanja (RPOO). Cilj je ovog rada opisati i prikazati rezultate evaluacije modela prevencije nepovoljnih razvojnih ishoda djece u RSI koja se ostvaruje kvalitetnom pedagoškom praksom, korištenjem eksplanatornog sekvencijalnog nacrta istraživanja. Kvazieksperimentalnom kvantitativnom metodom utvrđen je doprinos primjene modela socijalnoj uključenosti djece. Sudjelovalo je 60 odgajatelja iz 15 dječjih vrtića u sedam županija Republike Hrvatske. Oni su prije i nakon 6 mjeseci provedbe modela popunjavali Skalu procjene socijalne uključenosti djeteta i Protokol za dokumentiranje pedagoške prakse u odnosu na dijete. Kvalitativnom tematskom analizom opisani su načini na koje primjena modela doprinosi dobrobiti djece. Intervjuirano je 30 odgojitelja koji su implementirali model. Pokazalo se da primjena modela doprinosi boljim razvojnim ishodima djece u RSI, profesionalnom razvoju i praksi odgojitelja. Nalazi ukazuju na potrebu unaprjeđivanja pedagoške prakse RPOO radi prevencije nepovoljnih razvojnih ishoda djece u RSI.
Stavovi roditelja o važnosti glazbeno poticajne sredine za cjeloviti razvoj djece jasličke dobi
Authors: Dobrota Snježana , Škoko Paula , Kalenić Žana
Published: January 2025

Glazbene aktivnosti imaju izuzetno važnu ulogu u cjelovitom razvoju djece. Cilj ovoga istraživanja je ispitati stavove roditelja o važnosti glazbeno poticajne sredine za cjeloviti razvoj djece jasličke dobi s obzirom na spol, stručnu spremu, dodatnu glazbenu poduku, poznavanje notnog pisma i dječje pohađanje programa glazbenog vrtića. Ispitivanje je provedeno putem ankete na uzorku od 193 sudionika, roditelja djece jasličke dobi iz Splitsko-dalmatinske županije. Za potrebe istraživanja konstruiran je upitnik koji se sastoji od dva dijela: Upitnik općih podataka i Stavovi roditelja o važnosti glazbeno poticajne sredine za cjeloviti razvoj djece jasličke dobi. Rezultatima istraživanja potvrđeno je kako spol i stručna sprema nisu značajni prediktori roditeljskih stavova prema važnosti glazbeno poticajne sredine za cjeloviti razvoj djece jasličke dobi. Dodatna glazbena poduka roditelja i poznavanje notnog pisma značajni su prediktori dijela stavova koji se odnose na provođenje glazbenih aktivnosti u kući i stavove prema glazbi generalno. Rezultatima istraživanja potvrđeno je da roditelji čija djeca pohađaju program glazbenog vrtića, u odnosu na roditelje čija djeca nisu uključena u takve aktivnosti, imaju pozitivnije stavove prema važnosti glazbeno poticajne sredine za cjeloviti razvoj djece jasličke dobi. Dobiveni rezultati ukazuju na važnost kvalitetne organizacije programa glazbenih vrtića i veću uključenost djece u takve programe.
Assessment practices of students through the developmental approach
Authors: Devetaku Gojani Hajrije , Gojani Anton
Published: January 2025

The aim of the paper is to examine the assessment practices of lower secondary school students and to determine the extent to which these practices are compatible with the requirements of the curriculum, which aims to develop students` competencies. The data was collected through the comparative analysis of 36 assessment instruments from 17 schools in Kosovo. The most common practices of student assessment include assessment through tests, assessment through projects, quizzes, essays, and homework, while the most common and predominant practice is assessment through exam instruments. What differentiates these practices are objective, assessment planning, tasks, questions and other requirements. From the results, it appears that assessment planning is quite general in most cases and in some cases, it is not done at all. Although some of the forms of assessment are defined, the purpose is mostly missing and the learning outcomes that teachers should focus on when assessing each of the planned forms of assessment are missing. Also, the design of the exams used to assess students is mainly based on textbook content that focuses on reproducing information. Due to this form of assessment, there is a lack of assessment practices with a “developmental approach”, which is important and a prerequisite for students’ competent development.
University social responsibility and knowledge management for a tax culture: Perception of internal stakeholders of tax advisory centers in Peru
Authors: Vargas-Figueroa Joberth , Linares-Guerrero Melva , Javier Diaz-Angulo Sindulfo , Jeanett Ramos-Cavero Maria , Cordova-Buiza Franklin
Published: January 2025

Developing countries generally have a poor tax culture, and in this context, university social responsibility plays an important role in knowledge management with an impact on tax collection. This study aims to determine the level of perception of University Social Responsibility (USR) by internal stakeholders (teachers, administrative staff, students) participating in the Accounting and Fiscal Support Nuclei (NAF) program (Latin American training program for university students on the tax and customs system, to provide free assistance to micro-enterprises and low-income people). The methodology applied was a quantitative, cross-sectional, non-experimental study; the sample consisted of internal stakeholders of the Northern Private University, (Peru); the sampling was probabilistic; the population was 220 people and the survey was applied to 136 people. Judges validated it using Aiken’s V and Cronbach’s Alpha reliability test, obtaining a result of 0.921. These results were processed using the IBM SPSS statistics. The results show that stakeholders attribute the USR efficiency in 88.22% to program implementation; 96.3% to the priority axes, for considering a culture of inclusion; 90.40% to management levels, for having committees, implementation of plans, projects, and management indicators; 89% to the record of actions carried out, such as the storage of evidence; 72.8% to the communication of results and impact; 92.6% to the implementation of strategies. It is concluded that the USR level of internal stakeholders based on the NAF program is efficient. The main factor is the strategies implemented by the university, with the active participation of all who contribute to improving students’ competencies.
PRODUÇÃO DE BIONAFTA A PARTIR DE ÁLCOOIS PRIMÁRIOS (C3-C5) VIA PROCESSOS DE DESIDROGENAÇÃO/DESIDRATAÇÃO CATALÍTICA
Authors: Coelho Adônis , Metzker Gustavo , P. de Lima Lívia , Gomes Eleni , Boscolo Mauricio
Published: January 2025

PRODUCTION OF BIONAPHTHA FROM (C3-C5) PRIMARY ALCOHOLS VIA CATALYTIC DEHYDROGENATION/DEHYDRATION PROCESSES. A sequence of dehydrogenation/dehydration reactions of homologous alcohols: propanol, butanol and pentanol was conducted using heterogeneous catalysts composed of mixed metal oxides basically of Mg and Al derived from hydrotalcites in the ratio M2+/Al3+ = 3, with 10 and 20% of the Mg substituted by Cu. The reactions were carried out in a fixed-bed reactor over a duration of 6 h at temperatures of 450 and 500 °C and yielded products of significant interest to the chemical industry. Product identification and quantification were achieved through gas chromatography coupled with mass spectrometry (GC-MS). A range of compounds were obtained, including alcohols, aldehydes, ethers, carboxylic acids, ketones, and hydrocarbons, with condensed alcohols and aldehydes being the predominant products. Reaction pathways were proposed for conversion of alcohols into their respective products, based on the Guerbet reaction mechanism. Catalysts containing copper proved to be more efficient in selectivity and stability throughout the reaction.
UM OLHAR SOBRE O SANEAMENTO BÁSICO A PARTIR DOS ESPAÇOS CONCEBIDOS, VIVIDOS E PERCEBIDOS E DA ATUAÇÃO DO ESTADO BRASILEIRO
Authors: Valcácer Ravena , Rodrigues Diniz Morais Ione
Published: January 2025

Este artigo problematiza a questão do saneamento básico no Brasil, tema de relevância no contexto atual. O objetivo geral é analisar o saneamento básico na perspectiva dos espaços concebidos pela política e pelo plano do setor e os espaços vividos e percebidos pelos agentes mais pobres. Como metodologia, recorreu-se a procedimentos de pesquisas bibliográfica e documental. O espaço urbano brasileiro é marcado por conflitos e desigualdades entre os agentes que o produzem. Historicamente, as classes populares têm seus direitos lesados e, no que se refere ao saneamento, o EstTado corrobora para essa situação, privilegiando os interesses do mercado e da elite. A partir da compreensão dos espaços concebido, vivido e percebido, verificou-se que há uma negligência da garantia do direito a esses serviços pelas classes populares, além de haver uma incompatibilidade entre o espaço concebido pelo Estado e os espaços vivido e percebido pelos agentes mais pobres.
LICENCIAMENTO AMBIENTAL NO ÂMBITO DA GESTÃO AMBIENTAL COMPARTILHADA NO RIO GRANDE DO NORTE
Authors: Souto Lucas , De Faria Correa Edgard
Published: January 2025

O licenciamento ambiental é alvo de discussões envolvendo empreendedores e o poder público em todas as esferas. Há quase duas décadas o setor produtivo promove discussões e debates chamando atenção para os gargalos do licenciamento ambiental e propõe sugestões para melhoria do processo. Um dos gargalos identificados foi a baixa quantidade de municípios habilitados para realizar o procedimento: dos 5.570 municípios brasileiros, apenas 1.696 (30,4%) realizavam o processo de licenciamento ambiental. No Rio Grande do Norte (RN), recorte espacial objeto da análise deste artigo, dos 167 municípios, apenas 11 (6,5%) dispõe do procedimento. Diante disso, este artigo trará um panorama geral da situação do licenciamento ambiental no Brasil e um diagnóstico da pauta no RN, apresentando evidências do problema e possíveis soluções, com experiências exitosas.
O AVANÇO DA PASTAGEM SOBRE AS ÁREAS DE PRESERVAÇÃO PERMANENTE NA BACIA HIDROGRÁFICA DO RIO VERMELHO - ESTADO DE GOIÁS
Authors: Gomes do Nascimento Vieira Arlete , Eduardo Ferreira Manuel
Published: January 2025

Resumo
 
Áreas de Preservação Permanente na Bacia Hidrográfica do Rio Vermelho estão sendo usadas ou ocupadas pelas pastagens, colocando em risco todo o seu ecossistema bem como provocando escassez e secamento dos rios. O objetivo desta pesquisa foi a avaliar a quantidade de Áreas de Preservação Permanente que foram usadas e ocupadas pela pastagem.  Para tanto, realizou-se levantamento de dados em campo na Bacia Hidrográfica do Rio Vermelho (BHRV) no estado de Goiás. Utilizando os recursos disponíveis no geoprocessamento, foi possível mapear o uso da terra e delimitar as Áreas de Preservação Permanente que foram usadas e ocupadas pela pastagem perfazendo um total de 48% de Áreas de Preservação Permanente de rios nessa situação.
PRODUÇÃO DE HABITAÇÕES NO BRASIL ENTRE OS SÉCULOS XX E XXI
Authors: Almeida Rodrigo Emanoel de Sousa , Araújo da Costa Ademir , Jamilly Benevides Héllen
Published: January 2025

As políticas habitacionais no Brasil voltadas para a construção de moradias por intermédio do Estado ganharam destaque a partir da década de 1930 e, ainda até hoje. No século XXI, com programas que visam diminuir o déficit habitacional. O presente trabalho visa compreender os arranjos institucionais a partir da atuação desses programas na produção de políticas habitacionais, com destaque para o Instituto de Aposentadorias e Pensões (IAPs), o Banco Nacional da Habitação (BNH) e o Programa Minha Casa Minha Vida (PMCMV). Como metodologia utilizada foi feito um estudo de trabalhos teóricos que tratam e discutem os referidos programas bem como os desdobramentos das políticas habitacionais durante período. Os programas habitacionais foram moldados através de articulações que envolveram atores do nível local ao nacional ofertando habitações de maneira fragmentada entre as classes sociais.
DIAGNÓSTICO DO SISTEMA DE ESGOTAMENTO SANITÁRIO DE MUNICÍPIOS DO RIO GRANDE DO NORTE
Authors: De Souto Homrich Bianca , Vieira Cunha Paulo Eduardo , Costa Rodrigues Lucas
Published: January 2025

Diante das diretrizes de universalização do acesso ao saneamento básico no Brasil, este trabalho se propõe a avaliar a situação dos serviços de esgotamento sanitário de 84 municípios do Rio Grande do Norte, verificando o percentual de esgoto coletado e tratado, o tipo de coleta, o tipo de tratamento adotado em cada Estação de Tratamento de Efluentes e a destinação final do efluente tratado. Foram elaborados mapas a partir de uma cartografia temática dos dados coletados para o diagnóstico dos municípios. Verificou-se a predominância de municípios com menos de 35% de cobertura de esgotamento sanitário e observou-se deficiências estruturais na concepção e manutenção dos sistemas existentes. A situação analisada reforça a importância da elaboração dos Planos Municipais de Saneamento Básico dentro da realidade do estado.
VARIABILIDADE ESPAÇO-TEMPORAL DA PERDA DE SOLO POR MEIO DO MÉTODO EUPS NO ESTADO DO AMAZONAS, BRASIL
Authors: VASCONCELOS BRYCHTN , VIEIRA CUNHA MIRELLE TAINÁ , CONCEIÇÃO PARANHOS FILHO ANTONIO
Published: January 2025

Os estudos de modelagem espaço-temporal da erosão hídrica constituem importantes ferramentas ao planejamento e gestão sustentável de territórios. De modo que a literatura científica está repleta de aplicações de modelos físicos e conceituais empregados na estimativa de processos erosivos; onde a Equação Universal de Perda do Solo - EUPS/USLE (WICHMEIER; SMITH, 1978) constitui o modelo mais amplamente utilizado, pela sua relativa facilidade de execução. No Brasil, esse modelo tem sido geralmente aplicado a pequenas bacias hidrográficas, sendo mais escassos os trabalhos envolvendo grandes áreas de estudo. Desse modo, o objetivo do presente trabalho é caracterizar a capacidade de perda de solo no estado do Amazonas, utilizando como recorte temporal os anos de 1985, 1995, 2005, 2015 e 2020. Como materiais, utilizaram-se o Modelo Digital de Elevação Terrestre MODIS - MODDEM1KM (NASA, 2019), a classificação de solos da CPRM (2015) e o mapeamento de uso e ocupação de solos do projeto MapBiomas (2022), Coleção 7. Todo o processamento dos dados foi executado no software livre de geoprocessamento QGIS. Como resultados principais, obteve-se valores médios de EUPS calculado para todo o Estado do Amazonas de 2147.33 ton. ha. ano-1 em 1985, 2171.82 ton. ha. ano-1 em 1995, 2104.3 ton. ha. ano-1 em 2005, 2110.38 ton. ha. ano-1 em 2015 e de 2250.96 ton. ha. ano-1 em 2020. Percebe-se um aumento da perda de solo em 6,7% no intervalo entre 2015 e 2020, em comparação aos demais períodos. Bem como, observa-se o aumento da supressão das áreas de cobertura florestal, aumento de áreas utilizadas para pastagem, cultivos agrícolas e mineração. A perda de solo também foi influenciada pela variação dos padrões de precipitação ao longo do tempo. Desse modo, infere-se que o modelo EUPS constitui uma ferramenta de grande potencial para auxiliar no planejamento e gestão ambiental.
ANÁLISE TERRITORIAL: UMA PROPOSTA COM BASE NOS CONCEITOS DE ICONOGRAFIA E CIRCULAÇÃO, DE JEAN GOTTMAN
Authors: Correia Reginaldo , Cigolini Adilar
Published: January 2025

Os povos tradicionais, em particular os faxinalenses, têm em seu território o fundamento do seu modo de vida. O geógrafo Jean Gottmann (1915-1994) procurou entender as variações espaciais com base no conflito entre a circulação e as iconografias, a primeira definida como as mudanças externas impostas ao território, e segunda como as ações internas evocadas para resistir as externalidades. Dessa forma, este trabalho objetiva sugerir uma proposta de análise baseada nos conceitos de Iconografia e Circulação de Gottmann para a análise territorial, usando como referência o território faxinalense. O método subjacente à construção de todo texto está no entendimento da realidade como conflito, que se manifesta no encontro da circulação com as iconografias.  Como resultado, tem-se que a concepção de Gottmann é um aporte teórico-metodológico que pode ser utilizado para a interpretação do território e seus conflitos.