bluuebunny/crossref_metadata_2025_split huggingface dataset:
Application of GIS-based models of weights of evidence, weighting factor, and statistical index in spatial modeling of groundwater
Authors: Khoshtinat Saeed , Aminnejad Babak , Hassanzadeh Yousef , Ahmadi Hasan 
Published: July 2019

AbstractThe present research aims at applying three geographic information system (GIS)-based bivariate models, namely, weights of evidence (WOE), weighting factor (WF), and statistical index (SI), for mapping of groundwater potential for sustainable groundwater management. The locations of wells with groundwater yields more than 11 m3/h were selected for modeling. Then, these locations were grouped into two categories with 70% (52 locations) in a training dataset to build the model and 30% (22 locations) in a testing dataset to validate it. Conditioning factors, namely, altitude, slope degree, plan curvature, slope aspect, rainfall, soil, land use, geology, distance from fault, and distance from river were selected. Finally, the three achieved maps were compared using area under receiver operating characteristic (ROC) and area under the ROC curve (AUC). The ROC method result showed that the SI model better fitted the training dataset (AUC = 0.747) followed by WF (AUC = 0.742) and WOE (AUC = 0.737). Results of the testing dataset show that the WOE model (AUC = 0.798) outperforms SI (AUC = 0.795) and WF (AUC = 0.791). According to the WF model, altitude and rainfall had the highest and lowest impacts on groundwater well potential occurrence, respectively. With regard to Friedman test, the difference in performances of these three models was not statistically significant.
A model of readiness for research activity of students of pedagogical high school and teachers of educational institutions
Authors: Barkhatova D. A. , Lomasko P. S. , Pak N. I. 
Published: July 2019

The paper is devoted to the consideration of the problem of finding approaches to assessing the level of formation of teachers’ readiness for research activities, as one of the important components of their professional practice. Recognition of the significance of the phenomenon under consideration in the educational sphere and the realization that the system of pedagogical support for research activities of future teachers in pedagogical higher educational institutions, and teachers in the system of raising their qualifications to some extent outdated, require their substantial renewal. In this connection, the problems of searching for approaches to the study of ways of forming teachers’ readiness for research activities become relevant, which makes it necessary to build a model of such readiness itself. The aim of the paper is to analyze the state and develop a model of readiness for research activities of students of a pedagogical higher educational institution and teachers of educational institutions. The main research methods are theoretical analysis of scientific and psychological-pedagogical literature devoted to the problem of research, testing of teachers of general educational institutions, bachelors and masters studying at a pedagogical university, methods of mathematical processing of statistical data. Means of researching the problem posed is criterion-based questionnaire-test tools, which allow to identify correlation dependencies between the indicators of the components of readiness for research activities and the levels of its formation. The study was conducted on the basis of the Krasnoyarsk State Pedagogical University named after VP. Astafyev with the participation of bachelors, master and teachers of educational institutions. The analysis of the state of the problem of research activities in the training of future teachers in a pedagogical university and teachers of educational institutions based on questionnaire and test diagnosed tools revealed correlations between the indicators of the four components in the structure of students’ readiness for research (motivational, cognitive, activity, reflexive) and levels this readiness (student, practitioner, theorist, research leader). The obtained dependencies and research data allowed to form a model of readiness for research activities of students of a pedagogical university and teachers of educational institutions, describing the degree of formation of each component at each level. The article materials may be useful for the organization of computer diagnostics of the readiness in question. Such diagnostics will not only allow automated identification of the level of readiness for research activities, but also give recommendations on the development of a particular characteristic, show how close the respondent is to the next level and what he needs to do to do this.
Unusual Regularity in GC Retention of Simple Amino Acid Derivatives
Authors: Zenkevich Igor G. , Todua Nino G. , Mikaia Anzor I. 
Published: July 2019

Background:
Application of simple regularities and general principles along with direct
use of reference gas chromatography retention index data for reliable structure determination
of compounds can be enhanced by determination of new regularities that are specific to certain
structural elements.

Objective:
Revelation and interpretation of an anomaly in the elution order of alkyl esters of
alkoxycarbonyl derivatives of glycine and alanine on standard and semi-standard non-polar
phases.

Method:
Preliminary derivatization of amino acids to alkyl esters of N-alkoxycarbonyl analogs
and interpretation of their gas chromatographic characteristics.

Results:
Alkyl esters of N-alkoxycarbonyl derivatives of alanine (Alkyl = C2H5, n- and iso-C3H7)
elute prior to the same derivatives of glycine, despite the presence of an additional methyl group at
C(2) in the molecule. Elution order is reversed for methyl esters of N-methoxycarbonyl derivatives.

Conclusion:
It is established that the peculiar behavior of alkyl esters of N-alkoxycarbonyl derivatives
of glycine and alanine agrees with the concepts of gas chromatography and the known retention
index regularities of organic compounds. A decrease of retention index values is a result of an
introduction of an additional methyl group to a carbon atom connected to two polar fragments in a
molecule like CH2XY. The dependence of the difference of retention index values for homologs
of the types of CH3-CHXY and CH2XY vs. the total mass of fragments (X + Y) is similar to those
for other sub-groups of analytes.
Fijación biológica del nitrógeno en tres especies silvestres del género Lupinus (Leguminosae, Papilionoideae) en México
Authors: Zamora Natera Juan Francisco , Zapata Hernández Isidro , Villalvazo Hernández Alejandra 
Published: July 2019

Antecedentes y Objetivos: La fijación biológica del nitrógeno (FBN) en leguminosas nativas de México ha sido poco estudiada; particularmente en especies del género Lupinus no se tiene información al respecto. En este sentido, el objetivo de esta investigación fue cuantificar la acumulación de biomasa y nitrógeno (N) en tres lupinos silvestres del estado de Jalisco, México (Lupinus exaltatus, L. rotundiflorus y L. mexicanus), así como evaluar la FBN en términos de cantidad de N fijado (kg ha-1) y proporción de N derivado de la atmósfera (% Ndda).Métodos: Las especies en estudio al igual que la cebada, una especie conocida como no fijadora de N y usada de referencia, fueron cultivadas en suelos agrícolas de Zapopan, Jalisco, en el periodo otoño-invierno de 2015-2016. Durante el crecimiento de las especies en estudio se realizaron muestreos destructivos a los 93, 108 y 122 días después de la siembra (Dds). En cada muestreo se cuantificó el número de nódulos por planta, contenido de materia seca (Ms) y % de N. Con estos valores se estimó mediante el método de la diferencia de N, la proporción de N derivado de la atmósfera (% Ndda) y cantidad de N fijado (kg ha-1).Resultados clave: A los 93, 108 y 122 Dds, L. exaltatus fijó 87.4, 86.9 y 187 kg de N ha-1, lo cual fue equivalente a 71.0, 70.9 y 83.8% de Ndda, respectivamente. Las especies L. rotundiflorus y L. mexicanus solamente mostraron valores significativos de N fijado hasta los 122 Dds.Conclusiones: Bajo las condiciones de este estudio se puede concluir que L. exaltatus se caracterizó por ser la especie más eficiente en la fijación de N atmosférico, debido a una favorable simbiosis entre las raíces y las bacterias nativas del suelo fijadoras de N atmosférico.
Awareness and acceptability of Initiative on Methods, Measurement, and Pain Assessment in Clinical Trials core outcome set for chronic pain among surveyed neuropathic pain authors
Authors: Dosenovic Svjetlana , Nikolic Zrinka , Ivancev Bozena , Kadic Antonia Jelicic , Puljak Livia 
Published: July 2019

Aim:
We assessed the knowledge and adoption of Initiative on Methods, Measurement and Pain Assessment in Clinical Trials (IMMPACT)-recommended core outcome set (COS) and core outcome measures (COM) among authors of systematic reviews (SR) and randomized controlled trials (RCT) about interventions for neuropathic pain (NeuP).
Methods:
NeuP SR and RCT authors identified via a systematic literature search were surveyed.
Results:
The response rate was low. Although majority of respondents were familiar with the IMMPACT COS, only 61% of SR authors and 40% of RCT authors used the COS. The main perceived obstacle that prevented the adoption of the COS was the lack of awareness of the full IMMPACT COS.
Conclusion:
The adoption of IMMPACT-recommended COS and COM among NeuP authors was inadequate and their appropriateness needs to be further evaluated.
Factors associated with evidence-based decision-making among patients and providers
Authors: Williams Nyna , Kogan Rachel 
Published: July 2019

Aim:
For comparative effectiveness research to achieve its purpose, providers and patients must use research evidence to make medical decisions. Therefore, this study examined factors associated with evidence-based decision-making by patients and providers.
Methods:
Data were collected via cross-sectional online surveys of patients (n = 603) and providers (n = 628) between November 2011 and January 2012.
Results:
For both patients and providers, evidence-based medical decision-making is associated with perceptions, that is, some combination of self efficacy, attitudes and opinions. However, whereas knowledge is the most consistent factor associated with decision-making for providers, it is not associated at all for patients.
Conclusion:
Efforts to promote evidence-based medical decision-making among patients and providers should focus on skills training to improve self efficacy, and messages that highlight the benefits of patient engagement in medical decisions.
Evolution of functional class, biochemical and echocardiographic parameters and clinical outcomes after sacubitril/valsartan initiation in daily practice
Authors: Morillas-Climent Herminio , Seller-Moya Julia , Vicedo-López Álvaro , Galcerá-Jornet Emilio , Alania-Torres Edgard , Rodríguez-Pichardo Ydelise , Larumbe-Rodríguez Ainhoa , Valle-Muñoz Alfonso 
Published: July 2019

Aim:
To analyze the impact of sacubitril/valsartan on functional class, surrogate parameters and clinical outcomes in clinical practice.
Methods:
Retrospective study of patients with heart failure and reduced ejection fraction that started treatment with sacubitril/valsartan.
Results:
149 patients (70.7 ± 9.6 years) were included. At baseline, 83.9, 15.4 and 0.7% were taking sacubitril/valsartan 24/26, 49/51 and 97/103 mg, respectively. After 316.1 ± 155.9 days, these numbers moved to 38.9, 39.6, 12.8% (8.7% discontinued). Sacubitril/valsartan improved functional class (from 2.3 ± 0.6 to 1.8 ± 0.5; p < 0.001), increased ejection fraction (from 31.2 ± 7.0 to 37.3 ± 10.5%; p < 0.001) and reduced NT-proBNP (from 3884 ± 4871 to 1975.3 ± 3006.6 pg/ml; p = 0.0001). Rates of any event, cardiovascular death and heart failure hospitalization/decompensation were 13.2 events/100 patient-years.
Conclusion:
Sacubitril/valsartan is effective and safe in routine practice.
Mobilização social em torno da regulação da talidomida
Authors: Moro Adriana , Trindade Brena Anaisa , Invernizzi Noela , Ditterich Rafael Gomes 
Published: July 2019

As sociedades têm procurado conhecer seus direitos e fazer reinvindicações com base nas informações de evidências científicas de que tomam conhecimento em relação as ações da saúde. O objetivo desse estudo é analisar a importância da mobilização social em torno da regulação da talidomida com destaque da esfera da mobilização nacional. Foi realizada revisão da literatura, utilizando-se descritores relacionados ao tema, e estas foram analisadas permitindo a identificação dos atores que influenciaram o processo de regulação da Talidomida. Os atores nacionais foram procurados para realização de entrevistas estruturadas que permitiram definir sua classificação e atuação na decisão regulatória. Realizaram-se análises documentais de atas de reuniões da Associação Brasileira das Vítimas da Talidomida (ABVT) – período de 1974 a 1994 –, depois designada de Associação Brasileira dos Portadores da Síndrome da Talidomida (ABPST) – 1992 até hoje, e do Conselho Nacional de Saúde do Brasil. Os atores foram classificados entre Atores Governamentais e organizações da sociedade civil, neste último enquadram-se os Grupos de interesse e outros stakeholders. Através da análise dos dados ressalva-se a significância de cada um dos atores na regulação da Talidomida e geração do apoio aos inúmeros indivíduos que desenvolveram a Síndrome da Talidomida e seus familiares. Ainda assim, novas vítimas ainda vêm sendo citadas no contexto nacional, demonstrando que a força desses atores, com junção de governamentais e organizações da sociedade civil, têm necessidade contínua para que as discussões para mais atualizações na regulação desse medicamento continuem acontecendo.
Palavras-Chave: Saúde. Participação Social. Políticas Públicas.
Reactivity of calcium carbonate prepared from flue gas desulfurization gypsum
Authors: Jurišová Jana , Danielik Vladimír , Fellner Pavel , Králik Milan , Foltinovič Tomáš 
Published: July 2019

Abstract
Reactivity of various calcium carbonate samples for flue gas desulfurization was tested. Two groups of CaCO3 samples were considered; natural limestone containing calcite phase dominantly and samples prepared by the conversion of gypsum with ammonium and carbon dioxide (precipitated CaCO3) containing different amounts of calcite, aragonite and vaterite.
Reactivity of precipitated calcium carbonate depends primarily on the particle size, similarly as in case of industrial samples. The initial reaction rate was comparable with the industrial limestones for samples with the average particle size lower than 15 μm. However, the conversion of laboratory samples was significantly higher after 5 min of the reaction.
Phase composition of the precipitated calcium carbonate has a minor but noticeable impact on the reactivity. The presence of vaterite slightly increased the reactivity, which is in accordance with its lower compact structure in comparison with calcite and aragonite. Unexpected effect of the increased content of aragonite, which is the most compact phase in comparison with calcite and vaterite, was observed. If calcium carbonate contains up to approximately 30 % of aragonite the reactivity increases, which can be explained by the SEM pictures showing agglomerate composition with relatively high specific surface. At higher contents of aragonite, the reactivity decreases. All the obtained results proved the suitability of precipitated CaCO3 prepared from flue gas desulfurization gypsum to be recycled in the flue gas desulfurization process.
Synthesis, crystal structure, infrared spectrum, and thermal properties of [Ni(1,10-phenanthroline)3](fumarate)·9H2O complex with hydrogen bonded supramolecular layers involving fumarate anions
Authors: Uhrinová Anna , Černák Juraj 
Published: July 2019

Abstract
From the aqueous-ethanolic system Ni(OH)2—H2
fum—phen (H2fum = fumaric acid, phen = 1,10-phenanthroline), novel complex [Ni(phen)3](fum)·9H2O (1) was isolated and characterized by chemical analyses and FT-IR spectroscopy. Results of single crystal X-ray structure analysis have shown that the ionic crystal structure of 1 is built of [Ni(phen)3]2+ complex cations, fumarate dianions and nine crystallographically independent water molecules of crystallization. The Ni(II) atom exhibits hexa-coordination by three phen ligands with mean Ni-N bond length of 2.090 Å. Water molecules form hydrophilic supramolecular layers with fumarate dianions via extended network of O—H···O type hydrogen bonds with O···O distances from the range of 2.676(2)—2. 916(2) Å; hydrophobic complex cations are embedded between these layers. Thermal study of 1 has shown that endothermic dehydration in the temperature range of 95—195 °C takes at least two steps of the process.
Graphical Abstract
Crystal structure of [Ni(phen)3]fum·9H2O (phen = 1,10-phenanthroline; H2
fum = fumaric acid) which is built of supramolecular layers formed by hydrogen bonded water solvate molecules and fum dianions and between the supramolecular layers embedded [Ni(phen)3]2+ complex cations is described here.
On local aromaticity of selected model aza-[n]circulenes (n = 6, 7, 8 and 9): Density functional theoretical study
Authors: Cagardová Denisa , Lukeš Vladimír , Matúška Ján , Poliak Peter 
Published: July 2019

Abstract
A computational study using density functional theory is reported for selected model aza[n]circulenes (n = 6, 7, 8 and 9) and their derivatives consisting of pyrrole and benzene units. Local aromaticity of central rings was discussed and analyzed using theoretical structural indices. Depending on their molecular structures, energies of the highest occupied and lowest unoccupied molecular orbitals change from –5.23 eV to –4.08 eV and from –1.97 eV to –0.41 eV, respectively. Based on B3LYP calculated optimal geometries, electronic structure of molecules and their charge transport properties resulted in the suggestion of three planar molecules containing three or four pyrrole units as potential candidates for p-type semiconductors. Hole drift mobilities for ideal stacked dimers of these potential semiconductors were calculated and they range from 0.94 cm2·V−1·s−1 to 7.33 cm2·V−1·s−1.
Study of the Properties and Cells Growth on Antibacterial Electrospun Polycaprolactone/Cefuroxime Scaffolds
Authors: Mijovic Budimir , Zdraveva Emilija , Bajsić Emi Govorčin , Slivac Igor , Dekaris Iva , Grgurić Tamara Holjevac , Ferri Tea Zubin 
Published: July 2019

Abstract
Electrospun materials are good candidates for the design of tissue regeneration scaffolds as they can simulate the natural surroundings of tissue cells. The study proposes electrospun polycaprolactone (PCL)/cefuroxime (CFU) scaffolds for human cell culture and investigates the influence of the antibiotic content on scaffold morphology, thermal and mechanical properties. The increase in the CFU concentration resulted in the reduction of fiber diameter and number of deformations. It also influenced the reduction of scaffold thermal enthalpies and improved scaffold break strength. With regard to cell growth, the scaffolds showed precedence in greater colonization of the HeLa cells. Finally, these scaffolds showed compatibility with standard human cell lines, and thus they can be used for the repair of damaged tissues.
Significance of the Wałbrzych Special Economic Zone “Invest Park” for Development of the Wałbrzych Agglomeration
Authors: Mroczek-Czetwertyńska Agnieszka , Detyna Beata 
Published: July 2019

Summary

Subject and purpose of work: The main goal of the article is to prove the impact of the Wałbrzych Special Economic Zone (WSSE) “Invest Park” on the development of the Wałbrzych Agglomeration region.

Materials and methods: The research carried out in 2017-2018 involved three groups of respondents: Wałbrzych Agglomeration residents, entrepreneurs and local government authorities. The study was supplemented with the information from WSSE “Invest Park”.

Results: For all three groups of respondents, WSSE “Invest Park” plays an important role in the development of the Wałbrzych Agglomeration. Its creation had the greatest impact on reducing the unemployment rate and also on improving the infrastructure. It is also important that WSSE top many rankings, gaining the first position as one of the best investment areas.

Conclusions: Establishing the WSSE in the area of the Wałbrzych Agglomeration has had a significant impact on the development of the region. This development is visible in the activities undertaken in the zone, attracting investors and creating new investment areas.
The influence of riparian woodlands on the thermal conditions of small lowland streams during the summer
Authors: Łaszewski Maksym , Kiryła Wojciech 
Published: July 2019

Abstract
Riparian woodlands significantly affect the water quality of streams and rivers. Thus, we examined whether the presence of woodlands in riparian buffer zones also impacts the thermal characteristics of lowland streams during the summer. Water temperature data were recorded with digital temperature loggers located in eight quasi-natural sites across the Garwolin Plain in central Poland. The mean, maximum, minimum, and mean daily range parameters were calculated for the whole study period from July to September 2017 with a 30 min. resolution. The percentage of woodlands in the catchment area and buffer zone along the streams was estimated based on satellite images from the Sentinel-1 and Sentinel-2 missions. The Random Forest method was used in the classification process with an accuracy of 96%. The similarity of measurement sites in terms of water temperature was determined using cluster analysis (Ward method), while a Spearman correlation coefficient was applied to compare thermal parameters with the percentage of woodland areas.
The results indicate that water temperature patterns across the measurement sites varied, with mean temperatures ranging from 14.4°C in site T8 to 16.3°C in site T1. Furthermore, the correlation analysis confirmed our hypothesis that the presence of woodland areas does not significantly alter the thermal parameters of lowland streams. Moreover, the cluster analysis showed that sites with significantly different percentages of woodland areas were closely linked due to the similar distributions of water temperature values. However, it must be emphasised that the lack of riparian woodlands in buffer zones does not exclude the presence of shade associated with shrubs and grasses, as well as aquatic plants. In consequence, more advanced indicators of riparian shade, such as vegetation mapping using unmanned aerial vehicle (UAV) or hemispherical photography, should be used for small lowland streams.