bluuebunny/crossref_metadata_2025_split huggingface dataset:
¿Es posible la formación de personas éticas y comprometidas en la universidad? La asignatura de Educación para la paz y la igualdad en los Grados de Magisterio
Authors: Torrego Egido Luis , Martínez Scott Suyapa , Sonlleva Velasco Miriam 
Published: November 2018

RESUMENLa universidad debería formar estudiantes bien informados, dotados de sentido crítico y comprometidos con la transformación social desde una ética universal basada en la solidaridad y en el bien común. Sin embargo, en la universidad actual predomina una visión utilitarista de la formación. La asignatura Educación para la paz y la igualdad se imparte en los Grados de Educación Infantil y Educación Primaria de la Universidad de Valladolid. Su finalidad es contribuir a la formación de personas éticas y comprometidas. En este artículo se analizan la potencialidad y los logros de esa asignatura. Mediante un estudio de caso en el que se utilizan entrevistas, observación no participante, cuestionarios, análisis de documentos y análisis de producciones del alumnado de la asignatura, se evalúa la valoración por parte de los estudiantes y la influencia que ejerce en ellos, así como los aprendizajes que genera. Se constata una mayor sensibilización, una mejora en la comprensión de la realidad global y el descubrimiento de estrategias didácticas para trabajar la paz y la igualdad en la escuela, pero sigue existiendo una actitud pasiva en buena parte del alumnado. Se precisa una educación contra el conformismo y la indiferencia.Palabras Clave: Formación inicial, Compromiso ético, Estudio de caso, Modelos de universidad.ABSTRACTThe university should educate well-informed students, endowed with critical sense and committed to social transformation from a universal ethic based on solidarity and the common good. However, at the current university, a utilitarian vision of education predominates. The subject Education for peace and equality is been taught in the Degrees of Early Childhood Education and Primary Education at the University of Valladolid. Its purpose is contributing to educate ethical and committed people. This paper analyzes the potentiality and achievements of this subject. Through a case study using interviews, non-participant observation, questionnaires, analysis of documents and that of student productions for the subject, assessment made by the students and their influence on them are evaluated, as well as the learnings generated by it. There is a greater awareness, an improvement in the understanding of the globalreality and the discovery of didactic strategies to work for peace and equality at school, but a passive attitude remains in many of the students. An education against conformism and indifference is needed.Keywords: Initial formation, Ethical commitment, Case study, University models.
On some physical and chemical properties of soils of sandy outcrops of the West Siberian northern regions
Authors: Kapitonova Olga A. , Aksarina Kristina Yu. 
Published: November 2018

The ancient aeolian forms of relief, which are mainly covered with pineries and coniferous forests, are widely spread in the territory of Western Siberia. Anthropogenic transformation of these landscapes leads to the formation of technogenic deserts and sandy outcrops on soils of light mechanical structure generally because of the development of oil and gas extraction industry. Such transformed ecosystems are often met in the north of the West Siberian Plain within a subzone of northern taiga of the taiga natural zone and the zone of the forest-tundra. In 2016–2017, we explored three sites of sandy outcrops in the territory of Purovsky District of Yamalo-Nenets Autonomous Okrug (Tyumen region): in 27 km to the south from Muravlenko, in 32 km to the southwest from Gubkinsky and in 23 km to the East-southeast of New Urengoy. The first two sites are located within the northern taiga; the third site is at the southern border of the forest-tundra, in the area of its gradual transition to the northern taiga.
Results of the conducted researches show the considerable changes in a number of physical and chemical properties of podsolic sandy soils of technogenic deserts in comparison with soils of undisturbed ecosystems. We have revealed statistically significant decrease in the acidity of the surface soil layer to 5–6 units рН due to the destruction of the top soil horizons and exposure of the illuvial and eluvial horizons having smaller acidity. Our researches show the reduction of maintenance of fine fractions – clay and dusty particles – in the transformed soils and, respectively, increase in content of sand up to 95–100%. Also we have revealed statistically significant reduction of soil moisture content in soils of sandy outcrops.
Thus, the soils of technogenic deserts are characterized by ease, flowability, they are usually not fixed by vegetation and easily are affected by wind. The ecotopes, which are formed on sandy outcrops, differ in extreme conditions. They can be mastered only by a small number of specialized species-erosiophiles, shifting to disturbed felted habitats with similar natural ecotopes with the friable sandy and sabulous sandy soils, often mobile soil typical of marine and lake shallows, river alluvium, taluses, slopes of ravines. On the periphery of sandy outcrops the shafts of falling up to 4,5–5,5 m high are formed. They constitute the real danger to natural undisturbed north taiga and forest-tundra ecosystems, burying them under sandy masses.
A comparative study of early and delayed cord clamping in term deliveries
Authors: Gonnade Nikita V. , Nikhate Surendra D. , Bal Himadri , Shrivastava Nikita 
Published: November 2018

Background: Timing of clamping of the umbilical cord has always been a debatable issue. Early cord clamping (ECC) is defined as clamping of the cord within 30 seconds of delivery of the baby and delayed cord clamping (DCC) is defined as clamping of the cord between 30 to 120 seconds of delivery. Delayed cord clamping, despite some limitations, is said to be beneficial to the neonate. A comparative study between ECC and DCC was carried out on a select group of term pregnant women without any high-risk factor and delivering at term. Aim of the study was to compare the effects of early versus delayed cord clamping on neonates and mothers. The focus was on the neonatal haemoglobin levels and adverse effects, if any on neonates and mothers in the two groups.Methods: 100 women satisfying the inclusion/exclusion criteria were recruited for the study. They were randomly divided into two groups of 50 each. Group A underwent early cord clamping and Group B delayed cord clamping. Mothers were observed for 1 hour post-delivery for any evidence of post-partum haemorrhage. Neonates were observed for any sign of tachypnea and blood sample was sent after 72 hours of delivery for analyzing Hb, hematocrit and bilirubin of the neonate.Results: The results revealed that neonates with DCC had a higher mean Hb level of 15.02 vis-à-vis the ECC group Hb of 11.69G/dl and the difference was statistically significant. Similarly mean hematocrit of DCC group was 48.67 while the ECC group mean was 42.36, the difference again was statistically significant. There was no significant side effects or complications in both mother and newborn babies.Conclusions: It was concluded that delayed cord clamping should be practiced in otherwise non high-risk deliveries.
Mifepristone for cervical ripening and induction of labour
Authors: G. Lata , N. Rana , R. Mittal , S. Kumar 
Published: November 2018

Background: The study was aimed to evaluate the efficacy of Mifepristone for induction of labour and in improving the Bishop score at term. The study also aimed to assess induction delivery interval and maternal and fetal outcomes with Mifepristone.Methods: The study was carried out on 200 pregnant females with 2 study groups of 100 each. Group A females received tablet Mifepristone 400mg and Group B females received placebo. Results: Time interval between induction to onset of labour was 28 hours 54 min and 42 hours 18 min respectively in cases and control group. Mean induction delivery interval was 35 hours 38 min and 49 hours 52 minutes respectively in cases and control group. LSCS rate was less with Mifepristone group.Conclusions: This study showed that treatment with Mifepristone is a simple and effective method of inducing labour in women with term pregnancy with unripe cervix. The use of Mifepristone provides an interesting new alternative to classic uterotonic agents when induction is necessary. The potential advantage of Mifepristone over PGs or oxytocin requires further evaluation in scarred uterus.
Clinical, ultrasonographical and hormonal correlation in women with polycystic ovarian syndrome
Authors: G. Ashwini Sidhmalswamy , Ghongdemath Jyoti S. , Venkatesh Sreedhar 
Published: November 2018

Background: Polycystic ovarian syndrome (PCOS) is the most common endocrine disorder in women of fertile age. The prevalence, time of onset and severity of clinical presentation vary among different ethnic and racial groups. Though there is significant reproductive, endocrine and metabolic morbidity of PCOS, very little is known about its different modes of presentation in Indian population. A cross sectional observational study. The objective To study the correlation between the clinical, ultrasonographical and hormonal features in women diagnosed as PCOS based on the revised diagnostic criteria, 2003.Methods: A cross-sectional study of 74 PCOS women who had oligo ovulatory cycles and polycystic ovarian morphology on ultrasound was done. Data about menstrual history and anthropometric measurements were collected. Clinical observations of acne and hirsutism were made. Transvaginal ultrasonography and biochemical analysis for free testosterone was done.Results: In all, 74 PCOS women were studied and analyzed. The mean age was 24.884.03, mean BMI was 25.48 ±3.75 and mean free testosterone was 3.81±4.05. Among the PCOS women 39.8% were hirsute, 10.1% were obese, 2.3% had acne and 38% were hyperandrogenemic. Of the hyperandrogenemic women 61.2% were hirsute, 53.22% were obese and 36.54% had acne. The association between BMI and free testosterone level was statistically significant (p=0.0023). BMI was moderately correlated with hyperandrogenemia (r=0.446). The mean left ovarian volume was higher in obese than in non-obese women, which was statistically significant (p=0.003). The mean left ovarian volume was high in hyperandrogenemic women which was statistically significant (p=0.00034).Conclusions: In the present study it was found that there is association between obesity and free testosterone level which was significant. There was statistically significant association between ovarian volume and obesity. Similarly, there was association between ovarian volume and hyperandrogenemia which was significant. Hirsutism and acne had no association with hyperandrogenemia.
“SEISMIC TECHNOLOGIES” IN THE CONTEXT OF RUSSIAN JOURNALS ON EARTH SCIENCES: AN EXTENSIVE 10-YEAR BIBLIOMETRIC ANALYSIS
Authors: Mazov N. A. , Gureyev V. N. 
Published: November 2018

The paper presents a ten-year bibliometric study of “Seismic Technologies” journal published by Trofimuk Institute of Petroleum Geology and Geophysics. In the study we used both generally accepted bibliometric methods including citation analysis, detection of a share of uncited papers, distribution of citations per years, analysis of the level of internationalization of the journal, as well as rather new approaches for analysis of publication activity and geographic distribution of editorial board members. The obtained findings related to “Seismic Technologies” were compared with relevant indices of the most ranked Russian journals on Earth sciences to reveal the journal’s position among other Russian serials and to detect its possibilities to be selected in international citation databases.
ERROR ESTIMATION OF MICROSEISMIC EVENT PARAMETERS
Authors: Gapeev D. N. , Epov M. I. , Potapov A. A. 
Published: November 2018

In the paper factors affecting error of microseismic events location are considered. Linearized error estimates are constructed, an accuracy of this approach is shown by the example. The influence of the following factors is demonstrated by examples: coordinate measurement errors of the microseismic antenna, errors in the model used for processing, and lack of information on the static corrections necessary to compensate for the low-velocity zone.
Bilan et croissance des reboisements de cèdre de l’Atlas, <i>Cedrus atlantica</i> (Endl.) Carrière, en Algérie : cas du Djurdjura et de l’Atlas blidéen
Authors: Rabhi Khellaf , Akli Amel , Djouhri Ahlem , Yahi Nassima , Boudedja Salem , Messaoudene Mahand 
Published: November 2018

L’étude a été menée sur trois plantations de cèdre de l’Atlas réalisées au Djurdjura, et quatre autres dans l’Atlas blidéen, en Algérie. Celles-ci se caractérisent par un contraste écologique et par des différences liées aux méthodes de préparation et de mise en place de chaque plantation. L’objectif était de comparer, en mettant en évidence l’influence de ces conditions, la croissance en hauteur, en diamètre et radiale de ces plantations, avec quelques cédraies naturelles et artificielles d’Algérie, du Maroc et de France. L’analyse descriptive des paramètres dendrométriques a confirmé les potentialités productives du cèdre de l’Atlas et sa faculté à coloniser les zones de montagne. Cette constatation découle du taux de réussite exceptionnel déduit des inventaires. En effet, quelle que soit la plantation, le taux de réussite dépasse 80 %. L’accroissement radial annuel atteint 5,6 mm. À 34 ans, le diamètre moyen avoisine 40 cm et la hauteur dominante 16 m. Bien que les parties préservées des plantations soient une réussite, les volumes initialement reboisés sont réduits de moitié en raison du pacage. Les résultats montrent l’effet positif des cépées de chêne vert sur la reprise et la croissance des jeunes plants, ainsi que l’importance des travaux préparatifs visant à stabiliser les terrains en forte pente et à améliorer le comportement hydrique du sol (banquettes et terrasses). Bien que le cèdre croisse de manière satisfaisante en zones sèches, il apparaît plus productif en dehors de son aire de répartition naturelle, par exemple en Bretagne. Cette essence pourrait constituer une espèce d’avenir pour les reboisements et l’amélioration des peuplements en Algérie, en raison de son adaptation aux conditions de milieu difficiles (sécheresse) et de sa productivité.
Impact des perturbations anthropiques sur la diversité végétale de la subéraie de Chréa, au nord de l’Algérie
Authors: Mekideche Siham , Brakchi-Ouakour Lila , Kadik Leila 
Published: November 2018

La subéraie de la réserve de biosphèrede Chréa, au nord de l’Algérie, révèle une action anthropique ayant profondément modifié le paysage végétal. Les feux récurrents et le surpâturage sont les principales perturbations des formations forestières présentes, s’agissant de perte de surface et de biomasse végétale. Notre objectif était de savoir comment, au sein de cette réserve, réagit la végétation de l’écosystème à Quercus suber L. aux conditions de milieu et aux perturbations liées à l’activité humaine. Pour y répondre, nous avons adopté une approche synchronique en réalisant 124 relevés phytoécologiques dans les différents stades dynamiques, en tenant compte de la présence ou de l’absence de la perturbation liée au pâturage. Une première analyse canonique des correspondances a porté sur les données floristiques et les variables environnementales ; une seconde concernait les attributs vitaux des espèces, en utilisant les traits de vie facilement mesurables (type biologique, stratégie adaptative de Grime, mode de dissémination). Les résultats montrent que la végétation de la subéraie s’organise le long d’un gradient de dégradation lié à l’action anthropique (incendies et pâturage), masquant l’effet des facteurs mésologiques dominants (altitude et exposition). L’approche fonctionnelle confirme cette dynamique régressive avec l’individualisation de deux groupes fonctionnels. Le premier recouvre les traits de vie « phanérophyte, compétition-stress, zoochore », caractéristiques des formations végétales les plus matures. Le second groupe englobe les traits « thérophyte, stress-rudéral, anémochore », liés aux formations ouvertes des pelouses surpâturées. Cette étude, conduite selon une approche fonctionnelle de la biodiversité, est une première évaluation de la réponse des subéraies algériennes aux perturbations anthropiques représentées par les incendies et le pâturage.
Réponses des plantules du cyprès de l’Atlas, <I>Cupressus atlantica</I> Gaussen, à l’inoculation de mycorhize arbusculaire en provenance de diverses origines dans l’ouest du Haut Atlas au Maroc
Authors: Sfairi Youssef , Najib Al Feddy Mohamed , Jadrane Issam , Abbad Abdelaziz , Ouahmane Lahcen 
Published: November 2018

Le cyprès de l’Atlas, Cupressus atlantica Gaussen, est endémique stricte de l’ouest du Haut Atlas marocain. Cette espèce joue un rôle écologique et socio-économique très important dans son aire de distribution : pour produire du bois de feu, aider à protéger les sols contre l’érosion, et comme plante médicinale chez les populations locales. Malheureusement, subissant diverses pressions, principalement le surpâturage et les activités humaines excessives, l’espèce souffre d’une détérioration alarmante et de perte de territoire. La variabilité des champignons mycorhiziens arbusculaires et sa réponse à l’inoculation mycorhizienne des plantules sous serre ont été étudiées pour différentes provenances. Douze populations naturelles représentant l’aire de distribution du cyprès de l’Atlas ont été sondées, à Adebdi, Aghbar, Allous, Idni, Ighil, Ighzer, Mzouzit, Rikt, Tiouna, Taghzout, Talat N’os and Taws. L’analyse des variations des champignons mycorhiziens associés aux racines de cyprès de l’Atlas ont révélé la présence d’au moins sept morphotypes appartenant aux genres Rhizophagus, Glomus, Gigaspora et Acaulospora. Le taux de colonisation mycorhizienne dans les racines du cyprès de l’Atlas a été examiné dans son milieu naturel, montrant une variation de 25 % à 45 %. Dans les conditions sous serre, la croissance des plantules, avec ou sans inoculation avec un complexe mycrohizien, a été surveillée pour les plantules provenant des douze lieux échantillonnés. Les résultats montrent qu’en absence des champignons bénéfiques dans le substrat de culture, la croissance et la nutrition des plantules ont été hautement dépendantes de l’origine des graines. En revanche, en présence du champignon dans le substrat de culture, les paramètres de croissance et de nutrition des plantules des douze provenances ne différaient pas de manière significative. Deux groupes principaux ont été identifiés par l’analyse en composantes principales et la classification ascendante hiérarchique basées sur les caractères analysés. Le premier groupe comprend les populations de la vallée de N’Fis, à savoir Allous, Idni, Ighil, Ighzer, Mzouzit, Rikt, Talat N’os et Taws, alors que le second groupe est composé des populations du côté sud, Aghbar, Adebdi, Taghzout et Tiouna.
Phase Behavior of Heavy-Oil/Propane Mixtures
Authors: Mancilla-Polanco A.. , Johnston K.. , Richardson W. D. , Schoeggl F. F. , Zhang Y.. , Yarranton H. W. , Taylor S. D. 
Published: November 2018

Summary
The phase behavior of heavy-oil/propane mixtures was mapped from temperatures ranging from 20 to 180°C and pressures up to 10 MPa. Both vapor/liquid (VL1) and liquid/liquid (L1L2) regions were observed. Saturation pressures (VL1 boundary) were measured in a Jefri 100-cm3 pressure/volume/temperature (PVT) -cell and blind-cell apparatus. The propane content at which a light propane-rich phase and a heavy bitumen-rich (or pitch) phase formed (L1/L1L2 boundary) was visually determined with a high-pressure microscope (HPM) while titrating propane into the bitumen. High-pressure and high-temperature yield data were measured using a blind-cell apparatus. Here, yield is defined as the mass of the indicated component(s) in the pitch phase divided by the mass of bitumen in the feed. A procedure was developed and used to measure propane-rich-phase and pitch-phase compositions in a PVT cell.
Pressure/temperature and pressure/composition phase diagrams were constructed from the saturation-pressure and pitch-phase-onset data. High-pressure micrographs demonstrated that, at lower temperatures and propane contents, the pitch phase appeared as glassy particles, whereas at higher propane contents and temperatures, it appeared as a liquid phase. Ternary diagrams were also constructed to present phase-composition data. The ability of a volume-translated Peng-Robinson cubic equation of state (CEOS) (Peng and Robinson 1976) to match the experimental measurements was explored. Two sets of binary-interaction parameters were tested: temperature-dependent binary-interaction parameters (SvdW) and composition-dependent binary-interaction parameters (CDvdW). Models derived from both types of binary-interaction parameters matched the saturation pressures and the L1L2 boundaries at one pressure but could not match the pressure dependency of the L1L2 boundary or the measured L1L2 phase compositions. The SvdW model could not match the yield data, whereas the CDvdW model matched yields at temperatures up to 90°C.
Artificial Lift Strategy for the Life Cycle of Unconventional Wells: A Case Study for Horizontal Shale Wells
Authors: Patron Katherine Escobar , Chen Billdal Xin , Lu Haidan , Kutluev Denis , Kimery Dave , Gau Kyla , Diederichs Lauren , Fears Soraya 
Published: November 2018

Abstract
The artificial lift strategy of an asset is driven by technical and economic factors. Production challenges associated with the exploitation of unconventional plays have become a key factor when planning for a life time solution. Inherent flow instabilities associated with the production of unconventional shale wells should be taken into consideration during the production and optimization of the well. Transient simulation is adopted to gain insights into dynamic flow mechanisms and consequently design for a customized tail pipe system for the life of the well.
This paper describes a case study where a Horizontal Enhanced Artificial Lift (HEAL) System is implemented together with a rod pump as the artificial lift strategy for an unconventional shale asset in the US. Dynamic transient simulation was conducted to demonstrate the efficiency of the system in significantly suppressing slug flow by conditioning flow through a regulating string and separating gas from the well stream before it reaches the installed artificial lift system. Comprehensive engineering scenarios are set up to analyze the effect of production parameters on the HEAL System design against conventional production approaches, where equipment run life is compromised due to unstable flow conditions and consequently the amount of gas and/or solids that are produced through the pump.
The combination of transient simulation with artificial lift demonstrates that the HEAL System is a suitable solution for the production challenges associated with unconventional reservoirs. Extending the life of the equipment allows the well to produce at a lower bottomhole pressure and manage slug flow. The solution can be extended to unconventional places where unstable production due to reservoir pressure depletion is a dominant factor.