bluuebunny/crossref_metadata_2025_split huggingface dataset:
Desarrollo socioemocional en niños mexicanos: un estudio narrativo sobre la migración
Authors: Pérez Padilla María de la Luz , Olmos Ríos Felipe , Solorio Núñez María Teresa 
Published: November 2019

Ante el fenómeno de la migración, tanto los familiares que se van como los que se quedan, se ven influenciados de alguna manera. Los niños como actores sociales, también viven y observan la migración directa e indirectamente. Ellos de acuerdo al contexto y a su propio proceso psico-evolutivo tienen una manera de narrar lo que saben y viven. La presente investigación hace un acercamiento a estos procesos socioemocionales a través de la narrativa y el dibujo de 653 niños de 3º a 6º de primaria, de los estados de Zacatecas, Michoacán, Hidalgo, Jalisco y Yucatán. Se utilizó la investigación narrativa en donde ellos dibujaban su interpretación de la migración y relataban una historia al respecto. Se analizó la información con categorías preestablecidas y emergentes, encontrando que los niños expresan principalmente las emociones de tristeza y felicidad, emociones que están asociadas a situaciones sociales donde hay peligro y amenaza ante la migración y donde se puede triunfar al vencer obstáculos y al lograr el objetivo de migrar. Finalmente, se constató que estos niños tienen una consciencia social de otro tanto de su dolor, alegría como de las injusticias vividas.
diablo de lo sublime. Preciosismo y clasicismo en la poética revolucionaria de Jorge Cuesta
Authors: Fernández Mora Vicente de Jesús 
Published: November 2019

"El diablo en poesía" es un pequeño texto escrito por Jorge Cuesta en 1934 que tiene como excusa el comentario de la poesía de su amigo Xavier Villaurrutia. El artículo, en que puede verse un seguimiento de la ofensiva contra el nacionalismo que había emprendido durante el desarrollo de la famosa polémica sobre literatura y nacionalismo de dos años antes, fue publicado en el diario El Universal. En él nuestro autor arroja unas cuantas ideas fundamentales para entender su poética, siguiendo la estrategia de arrogarse el atributo de revolucionario para su personal forma de entender el arte. Jorge Cuesta se vincula a la tradición poética que surge con la lectura que hacen los franceses de la teoría poética de Edgar Allan Poe y que aúna al anhelo de Absoluto, procedente del romanticismo, en el contexto de una moderna sociedad desacralizada, otros elementos de sesgo desrromantizado como el concebir la práctica poética como un ejercicio cuasi científico, dotado de premeditación y cálculo. A partir de estas premisas, Cuesta desarrolla una muy personal teoría poética que resignifica términos de la tradición (clasicismo, romanticismo y preciosismo) en favor de la defensa de una forma de arte purista que estaban practicando él mismo y sus amigos del grupo Contemporáneos.
Efecto vudú: posmodernidad y la disolución de fronteras espacio-temporales en la narrativa fantástica mexicana de inicios del siglo XXI
Authors: Torres Mojica Tarik 
Published: November 2019

La realidad global de inicios del siglo XXI nos muestra un espacio cambiante, de entrecruces de bienes culturales, cosmovisiones y lenguajes. Este entorno suscita cambios en la forma de vida y, entre otros aspectos, también en las artes, incluyendo la literatura. La cultura global se manifiesta en la producción literaria en México no solo por los temas que aborda, sino también por el modo en que se singulariza la experiencia humana ante un entorno que cambia constantemente y en el que nociones como certeza y linealidad histórica se han sometido a tensión; en suma, en el que diversos marcos de referencia construidos por la Modernidad han entrado en crisis. Así, se observa en la literatura mexicana el desarrollo de formas discursivas como la policíaca, la novela negra, el horror y la ciencia ficción, que históricamente han cargado sobre sí la sospecha de ser expresiones menores, de poca valía estética y, más aun, de ser ajenas a la tradición cultural nacional. En el presente artículo se hace una aproximación a la novela Efecto vudú de Edgar Omar Avilés, una obra construida con base en la hibridación textual, que discurre en la fragmentariedad y lo fantástico para desarrollar una historia en la que las nociones de tiempo, espacio, mito, magia y ciencia ficción se entremezclan. Para abordar esta obra se recurre primordialmente a la propuesta teórica sobre lo fantástico de Omar Nieto en Teoría general de lo fantástico.
Estimates of Fast Radio Burst Dispersion Measures from Cosmological Simulations
Authors: Pol N. , Lam M. T. , McLaughlin M. A. , Lazio T. J. W. , Cordes J. M. 
Published: November 2019

Abstract
We calculate the dispersion measure (DM) contributed by the intergalactic medium (IGM) to the total measured DM for fast radio bursts (FRBs). We use the MareNostrum Instituto de Ciencias del Espacio (MICE) Onion Universe simulation to track the evolution of the dark matter particle density over a large range of redshifts. We convert this dark matter particle number density to the corresponding free electron density and then integrate it to find the DM as a function of redshift. This approach yields an intergalactic DM of

pc cm−3, with the large errors representative of the structure in the IGM. We place limits on the redshifts of the current population of observed FRBs. We also use our results to estimate the host galaxy contribution to the DM for the first repeater, FRB 121102, and show that the most probable host galaxy DM contribution,

pc cm−3, is consistent with the estimate made using the Balmer emission lines in the spectrum of the host galaxy,

pc cm−3. We also compare our predictions for the host galaxy contribution to the DM for the observations of FRB 180924 and FRB 190523, both of which have been localized to a host galaxy.
Contraindre sans contraindre : du « client idéal » de l’école maternelle aux difficultés professionnelles enseignantes
Authors: Montmasson-Michel Fabienne 
Published: November 2019

L’article analyse l’effet des définitions sociales de l’enfant et des normes pédagogiques sur les difficultés professionnelles enseignantes. Le cas de l’école maternelle et de l’acculturation langagière montre que les normes pédagogiques reposent sur un « client idéal » autonome politiquement (qui se tient tout seul) et cognitivement (qui apprend tout seul) : un idéal de classe bien éloigné d’une bonne partie des enfants réels. Le cas des activités orales montre comment l’idéal d’un enfant qui se tient tout seul conduit à des dispositifs pédagogiques faiblement efficaces et différenciateurs tout en générant des difficultés concrètes de mise en œuvre et des arrangements inconfortables. Le cas de l’alphabétisation montre comment l’idéal d’un enfant qui apprend tout seul produit des normes pédagogiques entretenant les difficultés scolaires tout en empêchant de penser et d’expérimenter des pratiques plus égalisatrices, susceptibles de résoudre certaines difficultés d’enseignement. Ces difficultés sont la marque d’un métier empêché.
Le travail en équipe en école primaire : une autonomie sous contrainte
Authors: Roaux Cécile 
Published: November 2019

Cet article examine le paradoxe induit par « l’injonction » au travail en équipe au sein de l’école primaire française, qui reste à la fois sans un directeur statutairement reconnu, très centrée sur la classe et dans un système scolaire d’organisation encore pyramidale. Cette (pseudo) localisation du système scolaire est étudiée à la fois par le point de vue des acteurs au sommet de cette pyramide (Inspection générale, recteur, Direction Générale de l’enseignement scolaire, cabinet ministériel) et du point de vue des acteurs de terrain (hiérarchie intermédiaire, directeurs, enseignants). La méfiance que ce travail collectif « imposé » génère chez les enseignants, les détourne finalement d’un travail véritablement collaboratif et entraîne un repli sur soi et des conflits d’équipe, des tensions entre une « bureaucratie » délégitimée – mais de manière ambiguë – et une « anarchie » alimentée par les contradictions organisationnelles dans une période de changement de référentiel.
Enseigner dans le premier degré : système d’épreuves et répertoire de ressources
Authors: Bouchetal Thierry 
Published: November 2019

Cet article étudie les difficultés enseignantes du premier degré à partir des notions d’épreuve et de ressource. Cela permet de révéler conjointement l’engagement des sujets dans leur travail et les éléments caractérisant les cadres et contextes sociaux de leur exercice professionnel. Nos données sont issues d’approches biographiques de professeurs des écoles en cours de carrière. L’analyse met au jour des trajectoires professionnelles façonnées par les conséquences d’un système d’épreuves articulé à un répertoire de ressources, dont nous pouvons rendre compte par une modélisation. Ainsi, nos résultats pointent cinq catégories d’épreuves en lien avec le projet d’enseigner et le quotidien de l’activité, auxquelles se rajoutent deux autres catégories d’épreuves qui témoignent de stratégies pour reconfigurer les parcours professionnels. Les ressources identifiées sont principalement issues de l’environnement de travail proche et des différentes strates du parcours personnel.
A comprehensive in situ and remote sensing data set from the Arctic CLoud Observations Using airborne measurements during polar Day (ACLOUD) campaign
Authors: Ehrlich André , Wendisch Manfred , Lüpkes Christof , Buschmann Matthias , Bozem Heiko , Chechin Dmitri , Clemen Hans-Christian , Dupuy Régis , Eppers Olliver , Hartmann Jörg , Herber Andreas , Jäkel Evelyn , Järvinen Emma , Jourdan Olivier , Kästner Udo , Kliesch Leif-Leonard , Köllner Franziska , Mech Mario , Mertes Stephan , Neuber Roland , Ruiz-Donoso Elena , Schnaiter Martin , Schneider Johannes , Stapf Johannes , Zanatta Marco 
Published: November 2019

Abstract. The Arctic CLoud Observations Using airborne measurements during polar Day (ACLOUD) campaign was carried out north-west of Svalbard (Norway) between 23 May and 6 June 2017. The objective of ACLOUD was to study Arctic boundary layer and mid-level clouds and their role in Arctic amplification. Two research aircraft (Polar 5 and 6) jointly performed 22 research flights over the transition zone between open ocean and closed sea ice. Both aircraft were equipped with identical instrumentation for measurements of basic meteorological parameters, as well as for turbulent and radiative energy fluxes. In addition, on Polar 5 active and passive remote sensing instruments were installed, while Polar 6 operated in situ instruments to characterize cloud and aerosol particles as well as trace gases. A detailed overview of the specifications, data processing, and data quality is provided here. It is shown that the scientific analysis of the ACLOUD data benefits from the coordinated operation of both aircraft. By combining the cloud remote sensing techniques operated on Polar 5, the synergy of multi-instrument cloud retrieval is illustrated. The remote sensing methods were validated using truly collocated in situ and remote sensing observations. The data of identical instruments operated on both aircraft were merged to extend the spatial coverage of mean atmospheric quantities and turbulent and radiative flux measurement. Therefore, the data set of the ACLOUD campaign provides comprehensive in situ and remote sensing observations characterizing the cloudy Arctic atmosphere. All processed, calibrated, and validated data are published in the World Data Center PANGAEA as instrument-separated data subsets (Ehrlich et al., 2019b, https://doi.org/10.1594/PANGAEA.902603).
Rencontrer la spiritualité autochtone
Authors: Roussel Jean-François 
Published: November 2019

Comment approcher la spiritualité autochtone en évitant tout autant son travestissement que son enfermement dans le passé ? Nous ne traitons pas ici de contenus spirituels autochtones (symboles, rites, récits, etc.), mais plutôt des rapports établis entre eux et des horizons d’interprétation variés, y compris allochtones. Nous souhaitons éviter l’essentialisation de la spiritualité autochtone, essentialisation qui donne souvent prise à son objectivation puis à sa marchandisation. Nous examinons d’abord le concept de spiritualité autochtone, employé par des autrices autochtones, en évaluant l’adéquation de ce concept de spiritualité pour l’étude des traditions « spirituelles » autochtones. Par la suite, nous présentons en survol le « retour à la tradition » engagé parmi les peuples autochtones depuis le début des années 1970. Dans la troisième partie, nous présentons quelques discours autochtones qui apparaissent comme des actualisations novatrices de la spiritualité autochtone en contexte de décolonisation et qui, à notre avis, invitent à appréhender le spirituel autochtone comme une posture personnelle et collective de résistance et de créativité, nourrie à une tradition contextualisée et actualisée.
1H-NMR spectroscopy identifies potential biomarkers in serum metabolomic signatures for early stage esophageal squamous cell carcinoma
Authors: Liu Yan-Yan , Yang Zhong-Xian , Ma Li-Min , Wen Xu-Qing , Ji Huan-Lin , Li Ke 
Published: November 2019

Background
Esophageal squamous cell carcinoma (ESCC) is one of the most prevalent types of upper gastrointestinal malignancies. Here, we used 1H nuclear magnetic resonance spectroscopy (1H-NMR) to identify potential serum biomarkers in patients with early stage ESCC.

Methods
Sixty-five serum samples from early stage ESCC patients (n = 25) and healthy controls (n = 40) were analysed using 1H-NMR spectroscopy. We distinguished between different metabolites through principal component analysis, partial least squares-discriminant analysis, and orthogonal partial least squares-discriminant analysis (OPLS-DA) using SIMCA-P+ version 14.0 software. Receiver operating characteristic (ROC) analysis was conducted to verify potential biomarkers.

Results
Using OPLS-DA, 31 altered serum metabolites were successfully identified between the groups. Based on the area under the ROC curve (AUROC), and the biomarker panel with AUROC of 0.969, six serum metabolites (α-glucose, choline, glutamine, glutamate, valine, and dihydrothymine) were selected as potential biomarkers for early stage ESCC. Dihydrothymine particularly was selected as a new feasible biomarker associated with tumor occurrence.

Conclusions
1H-NMR spectroscopy may be a useful tumour detection approach in identifying useful metabolic ESCC biomarkers for early diagnosis and in the exploration of the molecular pathogenesis of ESCC.
Estimation of Serum Homocysteine and Vitamin B12 in Type 2 Diabetes Mellitus Patients
Authors: Sadaria Roshni G. , Vasava Smita N. , Bhalgariya Jaydeepsinh D. , Bhanushali Vruti J. , Bhoi Manish , Chandnani Praneta , Chavda Meet 
Published: November 2019

Background: Diabetes mellitus is a common metabolic disorder characterized by absolute or relative deficiencies in insulin secretion and/or insulin action associated with chronic hyperglycemia and disturbances of carbohydrate, lipid and protein metabolism. Homocysteine (Hcy) is a risk factor strongly linked to cardiovascular complications in Type 2 Diabetes mellitus (T2DM). Hcy requires 5-methyltetrahydrofolate as methyl donor and vitamin B12 as a co-factor. So, Vitamin B12 deficiency will lead to hyperhomocysteinemia. Biochemical and clinical vitamin B12 deficiency has been demonstrated to be highly prevalent among patients with type 1 and type 2 diabetes mellitus.
Aims: To assess the serum homocysteine and vitamin B12 levels in type 2 Diabetes mellitus patients.
Methodology: The present case control study was conducted at Dhiraj hospital, Piparia, Vadodara, Gujarat, India in which 80 subjects were enrolled, out of which 40 were cases of type 2 diabetes mellitus patients and 40 were controls. The age group for the study was 35 to 70 years. Blood samples were drawn to measure RBS, HbA1c, serum homocysteine and vitamin B12. Interpretation of data was done using Medcalc software.
Results: The mean levels of serum homocysteine was higher in T2DM patients than normal healthy individuals, difference between them was statistically highly significant (p<0.0001). The mean levels of vitamin B12 was lower in T2DM patients than normal healthy individuals, difference between them was statistically highly significant (p<0.0001). There is no correlation found between Homocysteine, vitamin B12 & HbA1c.
Conclusion: A significant increase in serum Hcy level was observed in T2DM patients in our study. Raised serum Homocysteine is considered as an early marker of B12 deficiency. Hyperhomocysteinemia will lead to cardiovascular complications. Therefore, the hyperhomocysteinemia could serve as another important marker of poor diabetic control and developing complications.
Oral Contraceptive Pills: Socio-demographic Characteristics of Acceptors at the Rivers State University Teaching Hospital, Nigeria
Authors: Nonye-Enyidah EI , Wekere F. C. C. , Donubari R. 
Published: November 2019

Background: Oral Contraceptive Pills (OCPs) are the most widely prescribed form of hormonal contraception both in developed and developing countries. They are also the most popular non-surgical method of contraception.
Objective: To determine the prevalence rate and socio-demographic characteristics of oral contraceptive pills acceptors at the Rivers State University Teaching Hospital (RSUTH), Port Harcourt.
Methods: A 10 year review of all clients who accepted oral contraceptive pills in the family planning clinic of the hospital from 1st January, 2008 to 31st December, 2017. Data was extracted, coded and analyzed using the Statistical Package for Social Sciences (SPSS) IBM version 25.0 (Armonk, NY).
Results: There were 1893 contraceptive acceptors during the study period, out of which 86 (4.5%) accepted the oral pills. Majority of the clients 66 (76.8%) were between the age range of 20 to 34, married 82 (95.3%), multiparous 48 (55.8%), Christians 82 (95.3%) and 82 (95.3%) had formal education. Clinical personnel were the commonest source of information on the use of oral contraceptive pills, accounting for 36 (41.8%).
Conclusion: Oral contraceptive pills are methods of contraception used by young, multiparous and educated women. Only 4.5% of the women accepted OCPs during the study period therefore concerted efforts should be made to improve its uptake in the family planning clinic.
Nacre‐Inspired Composite Electrolytes for Load‐Bearing Solid‐State Lithium‐Metal Batteries
Authors: Li Aijun , Liao Xiangbiao , Zhang Hanrui , Shi Lei , Wang Peiyu , Cheng Qian , Borovilas James , Li Zeyuan , Huang Wenlong , Fu Zhenxuan , Dontigny Martin , Zaghib Karim , Myers Kristin , Chuan Xiuyun , Chen Xi , Yang Yuan 
Published: November 2019

AbstractSolid‐state lithium‐metal batteries with solid electrolytes are promising for next‐generation energy‐storage devices. However, it remains challenging to develop solid electrolytes that are both mechanically robust and strong against external mechanical load, due to the brittleness of ceramic electrolytes and the softness of polymer electrolytes. Herein, a nacre‐inspired design of ceramic/polymer solid composite electrolytes with a “brick‐and‐mortar” microstructure is proposed. The nacre‐like ceramic/polymer electrolyte (NCPE) simultaneously possesses a much higher fracture strain (1.1%) than pure ceramic electrolytes (0.13%) and a much larger ultimate flexural modulus (7.8 GPa) than pure polymer electrolytes (20 MPa). The electrochemical performance of NCPE is also much better than pure ceramic or polymer electrolytes, especially under mechanical load. A 5 × 5 cm2 pouch cell with LAGP/poly(ether‐acrylate) NCPE exhibits stable cycling with a capacity retention of 95.6% over 100 cycles at room temperature, even undergoes a large point load of 10 N. In contrast, cells based on pure ceramic and pure polymer electrolyte show poor cycle life. The NCPE provides a new design for solid composite electrolyte and opens up new possibilities for future solid‐state lithium‐metal batteries and structural energy storage.
Probing Contact‐Electrification‐Induced Electron and Ion Transfers at a Liquid–Solid Interface
Authors: Nie Jinhui , Ren Zewei , Xu Liang , Lin Shiquan , Zhan Fei , Chen Xiangyu , Wang Zhong Lin 
Published: November 2019

AbstractAs a well‐known phenomenon, contact electrification (CE) has been studied for decades. Although recent studies have proven that CE between two solids is primarily due to electron transfer, the mechanism for CE between liquid and solid remains controversial. The CE process between different liquids and polytetrafluoroethylene (PTFE) film is systematically studied to clarify the electrification mechanism of the solid–liquid interface. The CE between deionized water and PTFE can produce a surface charges density in the scale of 1 nC cm−2, which is ten times higher than the calculation based on the pure ion‐transfer model. Hence, electron transfer is likely the dominating effect for this liquid–solid electrification process. Meanwhile, as ion concentration increases, the ion adsorption on the PTFE hinders electron transfer and results in the suppression of the transferred charge amount. Furthermore, there is an obvious charge transfer between oil and PTFE, which further confirms the presence of electron transfer between liquid and solid, simply because there are no ions in oil droplets. It is demonstrated that electron transfer plays the dominant role during CE between liquids and solids, which directly impacts the traditional understanding of the formation of an electric double layer (EDL) at a liquid–solid interface in physical chemistry.
Ultrahigh‐Sensitivity Sandwiched Plasmon Ruler for Label‐Free Clinical Diagnosis
Authors: Nan Jingjie , Zhu Shoujun , Ye Shunsheng , Sun Weihong , Yue Ying , Tang Xiaoduo , Shi Jingwei , Xu Xuesong , Zhang Junhu , Yang Bai 
Published: November 2019

AbstractOptical biosensors, especially those based on plasmonic structures, have emerged recently as a potential tool for disease diagnostics. Plasmonic biosensors have demonstrated impressive benefits for the label‐free detection of trace biomarkers in human serum. However, widespread applications of these technologies are hindered because of their insufficient sensitivity, their relatively complex chemical immobilization processes, and the use of prism couplers. Accordingly, a sandwiched plasmon ruler (SW‐PR) based on a Au nanohole array with ultrahigh sensitivity arising from the plasmonic coupling effect is developed. Highly confined surface charges caused by Bloch wave surface plasmon polarizations substantially increase the coupling efficiency. This platform exhibits thickness sensitivity as high as 61 nm nm−1 and can detect at least 200 000‐fold lower analyte concentrations than a nanowell sensing platform with the same wavelength shift. Additionally, the sandwiched plasmonic biosensor allows precise and label‐free testing of clinical biomarkers, namely C‐reactive protein and procalcitonin, in patient serum samples without requiring a sophisticated prism coupler, extra antibodies, or a chemical immobilization technique. This study yields new insight into the structural design of plasmon rulers and will open exciting avenues for disease diagnosis and therapy follow‐up at the point‐of‐care.