bluuebunny/crossref_metadata_2025_split huggingface dataset:
Falta de Comprensión y Motivación de la Asignatura de Matemáticas en los Estudiantes
Authors: Kaiser Holguín Irina Belén , Yzaguirre Tapia René Alex , Ubilla Alvarado Elsie Verónica , Montoya Navarrete César Antonio , Kaiser Holguín Robert Fabián 
Published: December 2024

La falta de comprensión y motivación en la asignatura de las matemáticas representa un desafío constante en la investigación educativa. Las emociones negativas y percepciones adversas hacia esta asignatura pueden ser barreras que limitan el rendimiento del estudiante en el aula. El objetivo central de este estudio es identificar y analizar los factores que influyen en la falta de comprensión y motivación de los estudiantes en la asignatura de matemáticas. Este estudio se realizó utilizando una metodología cualitativa, a través de entrevistas a docentes de la asignatura de matemáticas. Para ello, se realizó la recolección de datos a 42 docentes, sin distinción de género o edad. En base a estos datos recogidos, se realizó un análisis y se identificaron dos factores claves que influyen en el tema de estudio: factores ligados al entorno escolar y a la dependencia tecnológica. Los resultados y conclusiones ponen en evidencia, la desventaja que tiene los métodos tradicionales con la nueva tecnología, pero con una capacitación pertinente y con la suficiente información para adaptar los contenidos, se dará un uso responsable de la tecnología.
Existence of Human Rights Protection in Land and Mining Conflicts: Evidence from Indonesia
Authors: Hanum Willy Naresta , Zaman Muhamad Nafi’ Uz 
Published: December 2024

Human rights should not be subject to reduction under any circumstances except where such reductions are explicitly justified by law. In agrarian conflicts, regulations governing land acquisition may infringe upon individuals' fundamental rights, including land ownership rights, in the name of public interest. However, the extent to which the law can diminish the fundamental rights of citizens remains a subject of ongoing debate. This study explores how human rights can be preserved in agrarian conflicts, particularly those involving land acquisition for public interest, followed by mining disputes. This doctrinal research employs a statutory, conceptual, and case study approach. The findings indicate that human rights in land and mining conflicts can be upheld if there is alignment between legal frameworks, the actions of field officers, and the idealism of judges in making rulings that prioritize protecting human rights. Moreover, the concept of land acquisition for public interest should not be construed as automatically granting the government the right to repurpose land for other purposes, even when such purposes are related to the primary objective of the land acquisition.
Generasi Bersinar bagi Indonesia Emas 2045: Pembekalan Berdasarkan Matius 5:16 bagi Para Murid PPA Efrata ID0524 di Kampung Nanas, Samarinda
Authors: Prabowo Paulus Dimas 
Published: December 2024

Indonesia has initiated the vision of Golden Indonesia 2045 with an optimistic tone. However, amidst this optimism, major challenges are also present, such as increasing social complexity and moral decline that obscures cultural and spiritual values. The same anxiety was also felt by the mentors of the Proyek Pengembangan Anak (PPA) Efrata ID0524 in Samarinda. One solution can also be found in Matthew 5:16. This verse offers a basic principle for forming a generation that is able to be a light in the midst of the darkness of the times. The activity was carried out on November 4, 2024 at the Bethel Tabernacle Church (GBT) Jesus Alfa Omega, located at Jalan Pangeran Antasari No. 47, Bukuan Village, Palaran District, Samarinda City, East Kalimantan 75256. The number of attendees at the PkM activity was 158 people consisting of mentors, students fostered by PPA ID0524 Samarinda aged 5-20 years, and parents of students. The method of briefing is through lectures interspersed with interactions. The briefing material is based on Matthew 5:16. The method of writing this PkM article is literature study and exegesis. The results of the briefing showed positive things, both in terms of enthusiasm and commitment from the participants.
El Aprendizaje en la Educación Formal Versus el Aprendizaje en las Organizaciones
Authors: Gómez Romo María del C. , Barrera Erreyes Helder M. , López Gómez Andrés F. 
Published: December 2024

El aprendizaje es el proceso vital de adquisición de conocimientos, habilidades y actitudes en el que los estilos de aprendizaje juegan un papel determinante. El objetivo de esta investigación fue establecer si se han identificado los estilos de aprendizaje tanto de los estudiantes de la Facultad de Contabilidad y Auditoría (FCAUD) de la Universidad Técnica de Ambato (UTA), como de los empleados de las empresas manufactureras de la provincia de Tungurahua que constituyen una importante fuente de empleo de los profesionales formados en esta facultad. Se investigó aspectos teóricos del aprendizaje en la educación formal y en las organizaciones. Se utilizó una investigación de campo de tipo exploratoria y descriptiva y de corte transversal. El primer universo estuvo conformado por 1737 estudiantes de la FCAUD y el segundo universo por 2901 empresas manufactureras de la provincia, de donde se extrajo una muestra de 315 estudiantes y 340 empresas respectivamente. Las muestras se extrajeron con el empleo del muestreo aleatorio simple bajo parámetros estadísticos especificados. Se aplicó el test de Lynn O´Brien compuesto por 36 ítems para identificar los estilos de aprendizaje de los estudiantes. A partir de los datos obtenidos se determinó los porcentajes de cada estilo de aprendizaje, encontrándose que el estilo visual es levemente superior a los estilos auditivos y kinestésicos. Se estableció que ni la FCAUD, ni las empresas, habían identificado los estilos de aprendizaje, sin embargo, de acuerdo a las referencias teóricas, se concluyó que es necesario identificarlos para propiciar procesos de aprendizaje efectivos.
Redes de apoyo social en las personas mayores de tres centros de salud en Saltillo, Coahuila, México
Authors: Nuncio Domínguez Jose Luis , Bruno Fernando , Cortes Montelongo Diana Berenice , Vásquez Guajardo Luis Gerardo , Cortez González Luis Carlos 
Published: December 2024

Introducción: Las relaciones sociales en las personas mayores son transcendentales para mantener la salud mental y física en la vida posterior. El apoyo social se define como la ayuda ya sea emocional, instrumental o de otra índole que se deriva de un determinado entramado social (Arias, 2013). Objetivo: identificar la percepción de las redes de apoyo social en las personas mayores de tres centros comunitarios en la ciudad de Saltillo, Coahuila México. Material y métodos: estudio descriptivo transversal, población conformada por 216 personas adultas mayores de tres centros comunitarios de Saltillo, Coahuila, muestreo no probabilístico por conveniencia, instrumentos de medición: cedula de datos personales, escala Duke-UNC. Resultados: El promedio de edad fue de 69.24 años (DE 7.5) con un mínimo de 60 años y un máximo de 85. Los participantes presentan valores deficientes de apoyo social afectivo con el 81.5% (f. 176), apoyo social confidencial 81.5% (f. 176) y mala percepción de apoyo social global 81.9% (f. 177). Conclusiones: Las redes de apoyo de la familia y amigos de las personas mayores dependen de la disponibilidad de los factores propios de aquellos quienes brindan la ayuda por lo que estas redes sociales pueden verse limitadas y no ser tan eficaces como se pudiese pensar.
« Australianité », risque et masculinité chez les surfeurs de la Gold Coast (Australie)
Authors: Nardini Dario 
Published: December 2024

L’attaque de requin subie par un champion de surf australien pendant l’étape sud-africaine du championnat de surf le plus prestigieux au monde, en 2015, a été lue par de nombreux Australiens comme l’actualisation des valeurs associées à la figure du surfeur, perçu à la fois comme une expression emblématique des traits définissant socialement « l’australianité » et la masculinité. Basé sur une analyse ethnographique de l’univers du surf sur la Gold Coast (Australie), l’article s’intéresse au rôle et aux éléments constitutifs de cette figure dans les représentations de l’identité australienne. En effet, le surf incarne ici certaines des valeurs culturelles autour desquelles se sont construites les images de l’identité nationale. Parmi celles-ci, le courage assure un rôle paradigmatique, agissant symboliquement comme le pivot d’une culture sportive exclusive, majoritairement occidentale (blanche), se présentant comme un espace de manifestation et de définition de la masculinité. Séduisant écho contemporain du héros romantique, le surfeur australien incarne le charme de la liberté, l’attrait pour l’hédonisme « fun », la camaraderie entre jeunes hommes et — sans contradiction — l’individualisme compétitif qui caractérise l’éthique néolibérale et les dynamiques d’exclusion qui ont marqué l’histoire sociale et sportive de l’Australie après la colonisation.
Masculinités à géométrie variable
Authors: Fanoli Francesco , Wane Cheikh Tidiane , Chevé Dominique 
Published: December 2024

Dans les représentations et les imaginaires collectifs, les lutteurs sénégalais sont souvent associés à la force, à la « virilité », au courage, à la persévérance, à la confiance en soi et au succès. Ces « vertus » principales du modèle idéal de « masculinité héroïque », que les lutteurs sont souvent poussés à incarner, augmentent paradoxalement leurs vulnérabilités. Comment la multiplicité de relations, de contingences, de normes morales et de modèles esthétiques qui forgent les subjectivités des lutteurs permet-elle de problématiser l’idée reçue de la lutte au Sénégal comme réserve d’une « masculinité héroïque » figée ?
Facile and Efficient Synthesis of Tri‐ and Tetrasubstituted 7‐Azabenzofuran Derivatives
Authors: Fu Chunsheng , Li Gaoyu , Shen Meng , Zhang Longxia , Yu Peng , Wang Dong 
Published: March 2020

AbstractA facile synthetic protocol for a series of tri‐ and tetrasubstituted 7‐azabenzofuran derivatives has been designed and successfully executed. The usefulness of this protocol is exemplified by the efficient synthesis of a potent HCV NS5B polymerase inhibitor. Compared to the known synthesis, the overall yield has been increased by six times. Those harmful and cost‐effective synthetic steps have been decreased, including reactions requiring the use of halogenating reagents, precious metals, high temperature or high‐pressure operation.
Volume–outcome relationship of liver surgery: a nationwide analysis
Authors: Olthof P B , Elfrink A K E , Marra E , Belt E J T , van den Boezem P B , Bosscha K , Consten E C J , den Dulk M , Gobardhan P D , Hagendoorn J , van Heek T N T , IJzermans J N M , Klaase J M , Kuhlmann K F D , Leclercq W K G , Liem M S L , Manusama E R , Marsman H A , Mieog J S D , Oosterling S J , Patijn G A , te Riele W , Swijnenburg R-J , Torrenga H , van Duijvendijk P , Vermaas M , Kok N F M , Grünhagen D J , Besselink M G H , de Boer M T , Buis C I , van Gulik T M , Hoogwater F J H , Molenaar I Q , Dejong C H C , Verhoef C 
Published: March 2020

Abstract

Background
Evidence for an association between hospital volume and outcomes for liver surgery is abundant. The current Dutch guideline requires a minimum volume of 20 annual procedures per centre. The aim of this study was to investigate the association between hospital volume and postoperative outcomes using data from the nationwide Dutch Hepato Biliary Audit.

Methods
This was a nationwide study in the Netherlands. All liver resections reported in the Dutch Hepato Biliary Audit between 2014 and 2017 were included. Annual centre volume was calculated and classified in categories of 20 procedures per year. Main outcomes were major morbidity (Clavien–Dindo grade IIIA or higher) and 30-day or in-hospital mortality.

Results
A total of 5590 liver resections were done across 34 centres with a median annual centre volume of 35 (i.q.r. 20–69) procedures. Overall major morbidity and mortality rates were 11·2 and 2·0 per cent respectively. The mortality rate was 1·9 per cent after resection for colorectal liver metastases (CRLMs), 1·2 per cent for non-CRLMs, 0·4 per cent for benign tumours, 4·9 per cent for hepatocellular carcinoma and 10·3 per cent for biliary tumours. Higher-volume centres performed more major liver resections, and more resections for hepatocellular carcinoma and biliary cancer. There was no association between hospital volume and either major morbidity or mortality in multivariable analysis, after adjustment for known risk factors for adverse events.

Conclusion
Hospital volume and postoperative outcomes were not associated.
Clinicopathological features, survival outcomes, and appropriate surgical approaches for stage I acinar and papillary predominant lung adenocarcinoma
Authors: Lu Di , Yang Jianjun , Liu Xiguang , Feng Siyang , Dong Xiaoying , Shi Xiaoshun , Zhai Jianxue , Mai Shijie , Jiang Jianjun , Wang Zhizhi , Wu Hua , Cai Kaican 
Published: March 2020

AbstractBackgroundWhether prognosis differs between lung acinar predominant adenocarcinoma (ACN) and papillary predominant adenocarcinoma (PAP) patients remains controversial. Furthermore, the appropriate surgical plan for each subtype is undetermined.MethodsData of stage I ACN or PAP patients from 2004 to 2015 were retrospectively reviewed by SEER*Stat 8.3.5. The primary outcome was overall survival (OS) and lung cancer specific survival (LCSS).Results1531 patients (PAP, 484; ACN, 1047) were included. ACN patients had better OS (P = .001) and LCSS (P = .003) than PAP patients. Among stage I ACN patients, lobectomy with mediastinal lymph node dissection (Lob) (P = .001) or segmentectomy (Seg) (P = .003) provided a better OS than wedge resection (Wed). And ACN patients who received Lob had a equivalent LCSS, compared to those who received Seg (P = .895). For patients with PAP in stage I, those who received Lob tended to have a better prognosis than that received Seg (HR of OS, 0.605, 95% CI: 0.263‐1.393; HR of LCSS, 0.541, 95% CI: 0.194‐1.504) or Wed (HR of OS, 0.735, 95% CI: 0.481‐1.123; HR of LCSS, 0.688, 95% CI: 0.402‐1.180).ConclusionsAmong patients with lung adenocarcinoma in stage I, those with ACN have a better OS and LCSS than that with PAP. For patients with stage I ACN, Seg and Lob, rather than Wed, seem to be an equivalent treatment choice; however, Seg is the prior option because it could preserve more lung function than Lob. For patients with PAP, Lob tends to be a better choice than Wed and Seg, although the prognostic difference between them is nonsignificant.
Odoriferous Therapy: A Review Identifying Essential Oils against Pathogens of the Respiratory Tract
Authors: Leigh‐de Rapper Stephanie , van Vuuren Sandy F. 
Published: March 2020

AbstractThis review explores the body of scientific information available on the antimicrobial properties of essential oils against pathogens responsible for respiratory infections and critically compares this to what is recommended in the Layman's aroma‐therapeutic literature. Essential oils are predominantly indicated for the treatment of respiratory infections caused by bacteria or viruses (total 79.0 %), the efficacy of which has not been confirmed through clinical trials. When used in combination, they are often blended for presumed holistic synergistic effects. Of the essential oils recommended, all show some degree of antioxidant activity, 50.0 % demonstrate anti‐inflammatory effects and 83.3 % of the essential oils showed antihistaminic activity. Of the essential oils reviewed, 43.8 % are considered non‐toxic while the remaining essential oils are considered slightly to moderately toxic (43.7 %) or the toxicity is unknown (12.5 %). Recommendations are made for further research into essential oil combinations.
Effect of Surfactants on the Flow Patterns of Horizontal Tube Bundles with a Falling Film
Authors: Lonardi Federico , Olbricht Michael , Luke Andrea 
Published: March 2020

AbstractThe influence of two alcoholic surfactants on the flow patterns of falling film tube bundles is investigated. The flow patterns are measured in a single‐stage absorption chiller in the absence of surfactants. The surface tension of H2O/aqueous LiBr solution with different concentrations of 1‐octanol and 2‐ethylhexanol is measured at low pressure in a saturated atmosphere. Small quantities of surfactants in the aqueous solution do not have an influence on the flow patterns of the condenser and evaporator, while a shift from droplet to jet mode is predicted in the absorber and generator at the typical working condition of an absorption chiller.
Interactions of Solvated Electrons with Nucleobases: The Effect of Base Pairing
Authors: Ranga Santosh , Mukherjee Madhubani , Dutta Achintya Kumar 
Published: March 2020

AbstractWe have investigated the effect of base pairing on the electron attachment to nucleobases in bulk water, taking the guanine−cytosine (GC) base pair as a test case. The presence of the complementary base reinforces the stabilization effect provided by water and preferentially stabilizes the anion by hydrogen bonding. The electron attachment in bulk‐solvated GC happens through a doorway mechanism, where the initial electron attached state is water bound, and it subsequently gets converted to a GC bound state. The additional electron in the final GC bound state is localized on the cytosine, similar to that in the gas phase. The transfer of the electron from the initial water‐bound state to the final GC bound state happens due to the mixing of electronic and nuclear degrees of freedom and takes place at a picosecond time scale.
Numerical simulation of three‐sided lid‐driven square cavity
Authors: Kamel Abanoub G. , Haraz Eman H. , Hanna Sarwat N. 
Published: March 2020

AbstractIn this article, an incompressible, two‐dimensional (2D), time‐dependent Newtonian fluid flow in a square cavity is simulated using finite difference method and alternating direction implicit technique. Navier‐Stokes equations are solved numerically in stream function‐vorticity formulation. In order to verify the numerical solver, the one‐sided lid‐driven cavity is studied and the results are compared with relevant data in the literature. They were in a very good agreement. Furthermore, two distinguished unexplored cases of the three‐sided lid‐driven cavity have been investigated. In case (1), the upper and lower walls are translated to the right, while the left wall is translated upward and the right wall remains stationary. Moreover, in case (2), the upper wall is translated to the right but the lower wall is translated to the left, while the left wall is translated downward and the right wall remains stationary. However, stream function and vorticity values in addition to the location of primary and secondary vortices' centers inside the square cavity have been revealed at low and intermediate Reynolds numbers (Re), typically (Re = 100 to 2000). Moreover, the higher the Re, the more main primary vortex approaches the cavity center and the bigger the secondary vortices.
Variable‐speed method for improving the performance of a mine counter‐rotating fan
Authors: Ai Zijian , Qin Guoliang , Lin Jingxiang , Chen Xuefei , He Wenqiang 
Published: March 2020

AbstractExisting methods of improving the performance of mine counter‐rotating fans (MCRFs) through speed matching of the rotors have certain drawbacks. This study proposes a variable‐speed method for the two rotors of an MCRF to improve its performance, including the blocking margin, operational safety, high‐efficiency working range (HER), and stability margin. Experimental and numerical methods were used to study the pneumatic performance of the MCRF. The results show that the second rotor (R2) is the critical stage affecting the safety of the motor, HER, and blocking margin. A condition‐adaptive speed matching method was proposed for R2 to avoid overloading the second motor at low‐flow rates and to improve the blocking margin and HER. The first rotor (R1) is the critical stage determining the stability margin of the MCRF. Reducing n1 and increasing n2 at low‐flow rates helped extend the stability margin.
Barriers in seeking support: Perspectives of service providers who are survivors of sexual violence
Authors: Anderson Gwendolyn D. , Overby Rebekah 
Published: March 2020

AbstractResearch with survivors of sexual violence suggests that most do not seek supportive services from community organizations. The purpose of this study is to understand the unique barriers that service providers, who are also survivors of sexual violence, may experience and how it informs their work with survivors. We conducted semi‐structured interviews with 19 female, trans, and nonbinary survivors of sexual violence who are also employed as domestic violence or sexual assault advocates, community organizers, therapists, health care providers, educators, or substance abuse counselors, and had worked with survivors of sexual violence in their current positions. We coded the data using a multistep strategy derived from grounded theory. Participants indicated sensitivity to community‐level barriers including where services are offered, perceived cost of services, and taking time off of work. Internalized blame, shame, minimization of their experiences, and trauma were also mentioned as significant barriers for themselves and impacted their work with survivors. Our findings suggest a need for trauma‐informed intervention in community practice and policy.
Is occluded phosphate plant‐available?
Authors: Schubert Sven , Steffens Diedrich , Ashraf Imran 
Published: March 2020

AbstractBackground: The phosphate concentration of the soil solution is generally low, allowing sufficient plant nutrition only for a few days. Therefore, supply from various fractions of bound phosphate is essential to meet plant demand. It is known that plants have developed strategies to acquire phosphorus (P) from phosphates adsorbed on clay minerals or oxides, from organically bound phosphates, and from calcium phosphates. However, it is generally assumed that occluded phosphate is not plant‐available.Results: In a pot experiment, two plant species, namely maize (Zea mays L.) and white lupin (Lupinus albus L.), differing in acquisition efficiency, were used to investigate whether Al oxide‐occluded and Fe oxide‐occluded phosphates can be acquired. Artificially prepared Al oxide‐occluded phosphate or Fe oxide‐occluded phosphate, respectively, was added to a subsoil low in available phosphates. It is shown that both plant species were not able to acquire P from Al oxide‐occluded phosphate. Also, maize was incapable of using Fe oxide‐occluded phosphate. In contrast, white lupin took up significant amounts of P from Fe oxide‐occluded phosphate.Conclusion: It is concluded that the strategy to form cluster roots together with their reducing power may allow white lupin to destabilize Fe oxides that occlude phosphates and to mine the soil for this additional phosphate fraction.
Wie kommen wir ins All? Oder: Aufzug zu den Sternen 2.0
Authors: Waletzko Michael 
Published: March 2020

AbstractDer Transport ins All an einem Seil ist auch im Jahr 2020 nicht in Sicht. Besteht überhaupt noch Interesse an einem solchen Weltraumaufzug zu einer geostationären Raumstation? Es scheint so: Denn an einem derartigen Projekt arbeitet die Japanische Weltraumgesellschaft. Und die gibt sich optimistisch.