bluuebunny/crossref_metadata_2025_split huggingface dataset:
Violet Luminescence from Zinc-Based Metal-Organic Frameworks Prepared by Solvothermal Synthesis
Authors: Sanada Tomoe , Tominaka Satoshi , Kojima Kazuo , Cheetham Anthony K 
Published: February 2019

Abstract
To investigate local electron transfer in metal-organic frameworks (MOFs), we synthesized a new MOF structure composed of zinc cations and 1,4-naphthalenedicarboxylate (14ndc) linker anions. The crystal structure was determined by single crystal X-ray diffractometry and the optical properties were investigated by measurements of luminescence and excitation spectra. [Zn4(ndc)3(OH)2](C2H5OH)(1.4H2O) crystallizes in space group $P\bar{1}$ and contains ZnO4 and ZnO6 coordination spheres linked by the naphthalenedicarboxylate (ndc, C12H6O42−) units. Under UV irradiation, the MOF shows violet luminescence, which is probably due to energy transfer involving two different systems in the structure. The MOF shows good stability in a water/ethanol mixed solvent (approximately 3:5 ratio by volume that is consistent with the solvent used for sample preparation).
Debates en la historiografía y en las investigaciones sobre enseñanza de la historia en torno a las cogniciones y a las emociones
Authors: Latapí Escalante Paulina , Pagès Blanch Joan 
Published: February 2019

El objetivo de este trabajo consiste en tratar a las cogniciones y a las emociones en la historiografía y en las investigaciones sobre enseñanza de la historia, a fin de identificar debates clave y vislumbrar posibles derroteros para la enseñanza. La primera parte sitúa la historia de las emociones apuntando cuatro debates transversales: si las emociones deben ser explicadas en términos universales o como constructos culturales; las diferencias en la definición de categorías básicas; la carencia de relación entre cogniciones y emociones; y el status incipiente de la historia de las emociones. En la segunda parte se analizan los estados del conocimiento más recientes en el campo de la enseñanza de la historia que muestran que las investigaciones se han enfocado fundamentalmente a categorías cognitivas, y que la emocionalidad ha emergido a cuenta gotas asociada a la motivación para el aprendizaje y a los sujetos considerados protagonistas; como herramienta para facilitar la memoria; y como conectora entre la historia y la vida del alumnado. De manera tangencial se le encontró en estudios sobre identidades, memoria y empatía sin explicitar las relaciones entre cogniciones y emociones.
On two applications of nanomechanics to future technology
Authors: Louizos Alexandros , Aifantis Elias C. 
Published: February 2019

AbstractIn this short communication, we introduce two applications of nanomechanics, based on standard molecular dynamics simulations, to problems of critical importance to future technology. One of these problems is concerned with “nanoenergy,” in particular, hydrogen storage in fullerenes. The other problem is concerned with “nanomedicine,” in particular, the effect of sodium chloride on collagen molecules. An extension of these preliminary results and their use in developing continuum nanomechanics models is underway, and it will be the theme of two separate future publications.
Factors Associated With Unrestrained Young Passengers in Motor Vehicle Crashes
Authors: Roehler Douglas R. , Elliott Michael R. , Quinlan Kyran P. , Zonfrillo Mark R. 
Published: February 2019

BACKGROUND AND OBJECTIVE:
Unrestrained child passengers are at significant risk of crash-related injury. Previous researchers using nationally representative crash data from 1992 to 1993 found an association between driver and passenger safety-belt use. Our objective in this study is to investigate factors associated with young, unrestrained passengers in fatal and nonfatal motor vehicle crashes using updated national crash data.

METHODS:
We analyzed 2011–2015 Fatality Analysis Reporting System and National Automotive Sampling System data and included vehicles with a young passenger (≤19 years old) in a crash. Driver and passenger characteristics were compared by using bivariate analyses separately for fatal and nonfatal crashes. Logistic regression analyses were performed on a combined data set to predict passenger restraint use.

RESULTS:
In unadjusted bivariate models, unrestrained drivers had a higher probability of having an unrestrained passenger across all passenger age groups for both fatal and nonfatal crashes. In multivariate logistic regression models that included both fatal and nonfatal crashes and were adjusted for several driver and passenger characteristics, unrestrained drivers had a higher risk of having an unrestrained young passenger across all age groups.

CONCLUSIONS:
In both fatal and nonfatal crashes, a driver being unrestrained is a strong predictor of the child passenger also being unrestrained. Policy and regulation to better ensure that drivers are properly restrained (eg, expanding primary seat-belt laws to all states) may serve as effective means for increasing rates of proper child-occupant–restraint use.
Media and Information Literacy - the Basis for Applying Digital Technologies in Teaching from the Discourse of Educational Needs of Teachers / Medijska i informacijska pismenost – osnova za primjenu digitalnih tehnologija u nastavi iz diskursa obrazovnih
Authors: Novković Cvetković Biljana , Stošić Lazar , Belousova Alla 
Published: February 2019

AbstractThe expansion of new digital media and the development of information technology give even bigger importance to media and information literacy, which is recognized as one of the key skills in the educational system almost everywhere in the world. The concept of media and information literacy in this paper is considered from the pedagogical aspect, i.e., the aspect of the educational needs of the teacher in learning and applying digital technologies in the teaching process.The aim of this paper is to determine the level of the teachers’ interest in the application of certain digital technologies in the teaching process on the one hand, and to determine similarities and differences in their needs for learning and applying digital technologies in the teaching process according to their gender and work experience, on the other hand.The conclusion is that teachers who participated in the survey showed high interest in learning and applying digital technologies in the teaching process. The use of the computer and the Internet appeared to be the biggest need teachers have. Key words: digital technologies; educational needs; information literacy; media literacy; teaching process.---SažetakEkspanzija novih digitalnih medija i napredak informacijske tehnologije uvjetuju sve veću važnost medijske i informacijske pismenosti, koja se priznaje kao jedna od ključnih vještina u obrazovnom sustavu gotovo u cijelom svijetu. Koncept medijske i informacijske pismenosti u ovom se radu promatra s pedagoškog aspekta, odnosno s aspekta obrazovnih potreba nastavnika za poznavanjem i primjenom digitalnih tehnologija u nastavnom procesu. Cilj rada jest utvrditi kolika je zainteresiranost nastavnika za primjenu pojedinih digitalnih tehnologija u nastavi, kao i utvrditi sličnosti i razlike u njihovim potrebama za upoznavanjem i primjenom digitalnih tehnologija u nastavi u odnosu na spol i radno iskustvo nastavnika. Zaključak je da su nastavnici očitovali visoku zainteresiranost za upoznavanje i primjenu digitalnih tehnologija u nastavi. Kao najveća potreba nastavnika pokazala se primjena računala i interneta.Ključne riječi: digitalne tehnologije; obrazovne potrebe; informacijska pismenost; medijska pismenost; nastavni proces.
The Effect of Flavonoids on Hydra – Alga Symbiosis and the Implementation of the Given Experiment in Schools/Učinak flavonoida na simbiozu hidre i alge i primjena navedenog eksperimenta u školama
Authors: Kovačević Goran , Sirovina Damir , Karin Monika , Bartol Valentina , Vujčić Valerija , Ruščić Mirko 
Published: February 2019

Abstract Hydra (Cnidaria) is a cosmopolite freshwater invertebrate that establishes symbiosis with unicellular algae. Its simple body is comprised of three layers: epidermis, mesoglea and gastrodermis. The goal of this research was to determine the effect of flavonoids quercetin and naringenin upon hydra – alga symbiosis, to determine how motivated teachers are to perform such a mode of teaching and whether this motivation depends on their age, years of working experience, the school they work in, available time, space and material. An anonymous survey on a sample of 100 biology teachers was used in the research. Hydras and algae were treated with quercetin and naringenin in concentrations of 0.2, 0.25 and 0.3 gL−1 and compared to the control, and Chlorella bioassay was used. Morphological changes included migration, reaction to mechanical stimuli, asexual reproduction, secretion of mucus and mortality. Cyto-histological analysis revealed changes of all three layers and growth inhibition. Naringenin exerted altogether higher impact than quercetin. Survey results indicated that teachers are willing to use this experiment in school, and that most schools have the minimum required equipment. Because of the possibility of adapting this experiment in different temporal and spatial conditions, its performance in school is suggested.Key words: learning; motivation; naringenin; quercetin; teaching.---SažetakHydra (Cnidaria) je kozmopolitski slatkovodni beskralježnjak koji uspostavlja simbiozu s jednostaničnim algama. Njezino jednostavno tijelo sastoji se od tri sloja: epiderma, mezogleje i gastroderma. Cilj ovoga istraživanja bio je utvrditi utjecaj flavonoida kvercetina i naringenina na simbiozu hidre i alge, odrediti koliko su nastavnici motivirani za primjenu takvog načina poučavanja te ovisi li navedena motivacija o njihovoj dobi, godinama radnog iskustva, školi u kojoj rade, raspoloživom vremenu, prostoru i materijalima. U istraživanju je upotrijebljena anonimna anketa na uzorku od 100 nastavnika biologije. Hidre i alge tretirane su kvercetinom i naringeninom pri koncentracijama od 0,2, 0,25 i 0,3 gL-1 i uspoređene su s kontrolnim uzorkom, a koristio se biološki test Chlorella test. Morfološke promjene uključivale su migraciju, reakciju na mehaničke podražaje, nespolno razmnožavanje, izlučivanje sluzi i smrtnost. Citološko-histološkom analizom utvrđene su promjene svih triju slojeva, kao i inhibicije rasta. Naringenin je imao ukupno veći učinak od kvercetina. Rezultati dobiveni anketom pokazali su da su nastavnici spremni izvoditi navedeni eksperiment u školi te da većina škola ima minimalnu potrebnu opremu. Zbog mogućnosti prilagodbe opisanog eksperimenta različitim vremenskim i prostornim uvjetima, predlaže se njegova primjena u školi.Ključne riječi: učenje; motivacija; naringenin; kvercetin; nastava.
A Tablet in School and Family Context/Tablet u školskom i obiteljskom okruženju
Authors: Ricoy María-Carmen , Sánchez-Martínez Cristina , Feliz-Murias Tiberio 
Published: February 2019

Abstract In information and communication society, school cannot turn a blind eye to new technologies. Therefore, the main objective of this research is to examine the potential use of tablets by primary school students in the school and the family context. The research was developed using qualitative methodology. A total of 247 respondents participated in the study, involving students, their parents and teachers. The results and conclusions show that there is no systematic work with tablets. Among practices of using tablets in school, it is worth mentioning those related to the investigation/information collection, those belonging to exploratory type and those related to audio-visual creation, while at home tablet usage assumes the recreational character. As a starting point, the positive attitude of teachers and parents towards using tablets has an impact on a better use of tablets, although they cannot be understood as a means to improve students' academic learning. However, tablets increase students’ motivation.Key words: family context; ICT; mobile devices; primary education; tablet.---SažetakU društvu u kojemu prevladavaju informacijska i komunikacijska tehnologija škole ne mogu ignorirati nove tehnologije. Stoga je glavni cilj ovoga istraživanja ispitati potencijal upotrebe tableta u radu s osnovnoškolcima u školi i u njihovome obiteljskom okruženju. Istraživanje je provedeno primjenom kvalitativne metodologije. U njemu je ukupno sudjelovalo 247 ispitanika – učenika, njihovih roditelja i nastavnika. Rezultati i zaključci pokazuju da se tableti u nastavi ne koriste sustavno. U praksi upotrebe tableta u školi potrebno je spomenuti njihovu upotrebu za provjeravanje/prikupljanje informacija, u istraživačke svrhe te za izradu audiovizualnih sadržaja, a tableti se kod kuće koriste u rekreativne svrhe. Najvažnije je da od samoga početka nastavnici i roditelji imaju pozitivan stav prema upotrebi tableta, jer to utječe na njihovu učinkovitiju upotrebu. Iako se tableti ne mogu smatrati sredstvom za poboljšanje akademskih postignuća učenika, oni pozitivno utječu na povećanje njihove motivacije. Ključne riječi: obiteljsko okruženje; IKT; mobilni uređaji, osnovnoškolsko obrazovanje; tableti.
DESARROLLO DEL CONOCIMIENTO FONOLÓGICO EN NIÑOS DE 5 AÑOS DE ESCUELAS PÚBLICAS DEL SECTOR RURAL EN COLOMBIA
Authors: Florez Trochez Silvia Liliana 
Published: February 2019

El presente artículo muestra el resultado del trabajo de 10 profesoras licenciadas en pedagogía infantil, quienes implementaron un modelo de intervención educativo en niños de transición de 10 escuelas públicas, ubicadas en el departamento del Atlántico (Colombia); para evaluar su contribución, en el fortalecimiento de las habilidades de conciencia fonológica. La población fue seleccionada por muestreo no probabilístico; el enfoque de la investigación fue mixto, diseño exploratorio secuencial, enmarcado en la investigación acción. La muestra estuvo compuesta por 116 niños para el grupo cuasiexperimental y 40 niños para el grupo control quienes fueron sometidos a evaluación pretest y postest a través de la Prueba de Conocimiento Fonológico -PECO-. Para el análisis estadístico comparativo de los datos cuantitativos, se utilizó el paquete estadístico Statgraphics, versión 16 1.15 y para los datos cualitativos, se emplearon categorías de análisis identificadas mediante el uso del software NVIVO; los datos complementarios se recogieron a través de técnicas como encuesta, entrevista semiestructurada, observación directa y revisión documental. Finalizada la implementación, todos los cursos intervenidos tuvieron avances significativos en las habilidades de conciencia fonológica (niveles silábico y fonémico) y en las tareas de identificación, omisión y adición, lo que permite afirmar que las actividades metalingüísticas, relacionadas con el conocimiento fonológico, pueden llegar a ser parte de cualquier proyecto de aula, trabajarse de manera transversal en todo programa de intervención pedagógica y con cualquier contenido curricular, como andamiaje para el aprendizaje del código lector, especialmente en aquellos casos donde los niños cursan un solo grado de preescolar.
LA RENDICIÓN DE CUENTAS EN ESTABLECIMIENTOS EDUCATIVOS DE GUATEMALA
Authors: Mazariegos Romero Patricia Luz , Ferriol Sánchez Fermín 
Published: February 2019

La rendición de cuentas en el sistema educativo es el proceso que permite cumplir responsabilidades y alcanzar los objetivos propuestos, este es un tema que ha cobrado importancia al ser utilizada como una herramienta para fomentar la transparencia en el manejo de recursos, en ese contexto este estudio se realizó con el objetivo de revisar el sistema de indicadores educativos para implementar la rendición de cuentas en establecimientos educativos de Guatemala. Fue un estudio de alcance descriptivo, tomando como fuentes de información cinco profesionales expertos en educación, ochenta y nueve directores, doscientos veinticuatro docentes de escuelas públicas y diez técnicos expertos en acompañamiento pedagógico. Para recopilar información se aplicaron a dichos sujetos encuestas, se hicieron entrevistas y grupos focales. Los resultados permitieron establecer la situación del sistema de indicadores educativos implementado por el Ministerio de Educación y plantear una propuesta teórica que incluye la integración de una dimensión de indicadores de rendición de cuentas, como herramienta para fomentar la transparencia. El diseño de un sistema de indicadores que integre la dimensión de rendición de cuentas influirá positivamente en la gestión administrativa de establecimientos públicos; con esto se tendrán mayores posibilidades de encontrar establecimientos con mejores prácticas de accountability, ya que se ha evidenciado de forma empírica que la integración de la comunidad educativa de forma organizada genera mejores resultados de desempeño.
Pulmonary artery ganglionic plexi radiofrequency ablation using non-fluoroscopic navigation for the treatment of pulmonary hypertension: a pilot study
Authors: Mamchur S. E. , Tokmakov E. V. , Nagirniak O. A. , Khomenko E. A. , Chichkova T. Y. , Bokhan N. S. , Romanova M. P. , Mamchur I. N. 
Published: February 2019

Aim. To evaluate the safety of the pulmonary artery radiofrequency catheter denervation in different pulmonary hypertension (PH) clinical forms.Methods. 6 patients with different clinical forms of PH were included in the study with the further randomization into two groups. Group I patient (n = 3) underwent pulmonary denervation and group II patients (n = 3) underwent a placebo procedure. The examination of patients included routine clinical tests, the measurements of N-terminal precursor of the brain natriuretic peptide (NT-proBNP) levels, coagulation blood tests, ECG recordings, echocardiography (with the estimation of mean pulmonary artery pressure), chest X-ray, the assessment of the respiratory function, right heart catheterization (RHC), six-minute walk test (6MWT), the assessment of the quality of life according to the SF-36 questionnaire. Intraoperative measures indicating the safety of the procedure were also studied.Results. There were no statistically significant differences found in the intraoperative data between the groups. None intraoperative and postoperative complications during in the in-hospital period found. Mean pulmonary artery pressure reduced in two patients without any elevations 24 hours following the intervention. A decrease in mean pulmonary arterial pressure from 48 to 41 mm Hg was observed in a patient with primary PH. The second patient with post-embolic pulmonary hypertension demonstrated a reduction in mean pulmonary artery pressure from 43 to 32 mm Hg. The third patient had no changes according to the RHC. All three patients showed a positive tendency according to the 6MWT and echocardiography, while none of these changes were recorded in Group II. The mean NT-pro-BNP level in Group I decreased from 1767±291 to 488±129 vs. 1519±305 and 1594±337 in Group II, respectively (P = 0.013). Conclusion Pulmonary artery denervation is a safe and promising treatment method, but further studies are required to prove its effectiveness.
Chemical angioplasty for cerebral vasospasm in patients with subarachnoid hemorrhage
Authors: Shilov A. A. , Mironov A. V. , Uchasova E. G. , Naumov D. Yu. , Shuspannikov P. A. , Krasnov V. V. , Grigoryev E. V. 
Published: February 2019

Aim. To evaluate the hospital outcomes of chemical angioplasty in patients with vasospasm secondary to the clipping of the ruptured cerebral artery aneurysm.Methods. 18 patients who underwent chemical angioplasty were included in the study. Patients’ age ranged from 24 to 66 years old, the mean age was 46.6±13.2 years. Indications for chemical angioplasty and the criteria for its termination were determined by the neurosurgeon based on clinical signs and symptoms, and the data of the non-invasive examination.Results.The sessions of chemical angioplasty were performed an average of 4.7±2.3 days after the aneurysm clipping and 6.5±3 days after the onset of subarachnoid hemorrhage. The number of sessions was 4.8±2.2 and varied from 1 to 9 sessions. The baseline Lindergard index was 3.82±0.6. Three patients (16.6%) died in the in-hospital period. The Lindergard index after the end of chemical angioplasty was 2.75±0.84, which is unreliably lower (p = 0.31) than that at the baseline.Conclusion. Timely chemical angioplasty can reduce the development of significant vasospasm complications, particularly ischemic neurologic deficit.
Lawyers about job satisfaction
Authors: Sokolov N. Ya. 
Published: February 2019

The solution of the problems associated with the rule of law state formation and improvement of the mechanism of the legal regulation depends mainly on lawyers as a social and professional group. Hence, the need for a thorough study of lawyers’ professional activities and the problems they face in their daily work appears. Also, it is necessary to have a clear understanding of whether the lawyers are satisfied with their work. Thus, the results of the author’s sociological study of the lawyers’ professional culture can be used to evaluate their satisfaction with the work they carry out.According to the data presented in the article, the lawyers’ assessment of the degree of their satisfaction with their work in general is quite contradicting. More than half of the respondents consider themselves not quite satisfied with their jobs. The lawyers’ job satisfaction is significantly affected by their professional specialization, work experience, age, and gender. This is confirmed by the data presented in the article. The author emphasizes the need for further in-depth and comprehensive study of the problem under consideration using the resources of sociology.
Law in the Era of Revolutions: Patterns of Evolution and Development. The 100th Anniversary of the Russian Revolution
Authors: Nikulin V. V. 
Published: February 2019

The paper deals with the process of changing the pre-revolutionary system of legal relations and institutions to a new legal order, the main purpose of which was to consolidate the new state of power established in Russia after October 1917. The main research task is to identify the fundamental, basic laws of the development of law in the period of revolutions based on the Russian experience.It is emphasized that at the initial stage of the revolution the old legal forms were mixed with the new ones, the old law continued to exist in legal practice. Even in the face of radical changes, it is impossible to carry out transformations simultaneously and everywhere. For some time, there is a force of inertia, when the old statelegal forms continue to operate.A number of basic conceptual provisions are substantiated. First, the legislation at the first stage of the revolution reflects the primary political aspirations of the authorities to consolidate and legitimize political success, therefore, it is characterized by the transience of adoption, does not have a system and consistency, and is intended mainly for the emergency bodies that implement it. Second, legal norms are class-based, characterized by class-based rigor and revolutionary expediency, synonymous with revolutionary legitimacy. Third, revolutionary expediency leads fatally to the excessive role and importance of emergency organs, leading to their arbitrary actions and massive abuse of the right to repression. Fourthly, the Soviet model of justice in determining its tasks, principles of judicial system and functioning, implementation of punitive policy corresponded to the model of the Soviet state. Its defining function in this model was the function of the implementation of political doctrine by legal means and the protective function of the system.All phenomena in the legal sphere of Russia are considered in the period from October 1917 to the end of 1920.