bluuebunny/crossref_metadata_2025_split huggingface dataset:
THE ROLE OF THE STOCK MARKET IN THE MOBILIZATION OF LONG-TERM FINANCIAL RESOURCES
Authors: Gasimova Lamiya 
Published: November 2018

The main purpose of the research is to define mobilization of long-term financial resources in the stock market, to analyse the current situation and give some suggestions for improvement of investment. The author tries to research the impact of investment on the stock market because everyone knows long-term financial resources are very significant for the market and affect economic growth. The paper examines the current state of investment activity in the stock market in our republic and around the world, as well as the impact on the economy of this activity is investigated. The author investigates the impact of investment activity in the stock market on the economy and ways of correct use of investment activity. Indeed, investment is a long-term investment in various sectors of the economy for making profit. Investment – consists of financial means put into objects of entrepreneurship and other types of activity, as well as material and intellectual resources for the purpose of earning (profit) or social benefits. Despite its popularity and presence in the news, the stock market is just one of many potential places to invest your money. Investing in stocks is often risky, which draws attention to the huge gains and losses of some investors. If you manage the risks, you can take advantage of the stock market to secure your financial position and earn money.
ASSESSMENT OF INCOME TAXATION OF PERFORMERS OF ECONOMIC ACTIVITIES
Authors: Puzule Anita , Svika Inguna 
Published: November 2018

In the changing economic situation of nowadays, flexible forms of employment become more popular, and a performer of economic activities is one of them. They have to face the inconstant tax policy of Latvia, be able to choose a payment regime from earned income, which is most suitable for them. The authors believe it is worthwhile to find out the opinions of performers of economics activities and to assess tax liabilities, which is an important requirement for the planning and development of their activities. The goal of the research is to assess the taxable income regimes for performers of economic activities in Latvia and to find out their opinion on their satisfaction with the tax policy. The approaches of the research are: the monographic and descriptive methods, document analysis, logically construction, statistical analysis, and a sociological research method – a pilot survey. The research resulted in the assessment of taxable income regimes and their application in various situations. By conducting the pilot survey, it has been discovered that performers of economics activities find it difficult to understand standard regulations and accounting management; they lack comprehension of the importance of SSIMC and its advantage for the future. The calculations made by the authors show the amounts of the tax burden formed with each tax payment regime.
ROLE OF LEADERSHIP AND POSSIBILITES FOR ITS DISPLAY IN THE STATE BORDER GUARD
Authors: Kublickis Raimonds , Arbidāne Iluta , Znotiņa Daina 
Published: November 2018

The authors explore the display of leadership in the State Border Guard in order to find out whether there is a place for leadership and the human factor in the relationship between management and subordinates in the strictly regulated organization. The aim of the research: to study the role of leadership and its display in the State Border Guard. Tasks of the research: 1) to describe the nature of leadership and its role in the organization's activities; 2) to conduct a survey on the most significant aspects of leadership manifestation in regards inspectors and officers from different border guard units of the State Border Guard; 3) to make conclusions and develop proposals regarding the necessity of leadership and possibilities for its display. The research methods: 1) literature analysis, observation; 2) surveying, data processing, analysis, and interpretation. At the end of the research, the authors conclude that the respect and appreciation provided by the superior to the subordinates is as important as a good salary and work conditions at the State Border Guard. Hence, in the opinion of the subordinates, a superior who can display the respect and appreciation to the subordinates will be able to become the leader. Even in a strictly regulated organization such as the State Border Guard, the superior can offer his/her subordinates the assistance – not by completing a task on behalf of the subordinate, but by providing the advice and guidance. This behaviour is an attribute of a democratic management style creating a favourable ground for leadership development.
Concepciones de los Docentes sobre la Evaluación Socialmente Justa
Authors: Murillo F. Javier , Hidalgo Nina 
Published: November 2018

RESUMENEl presente estudio busca conocer las concepciones de docentes sobre una evaluación socialmente justa. Para alcanzar dicho objetivo, se ha llevado a cabo una investigación fenomenográfica en la que han participado 30 docentes de educación Primaria y Secundaria, de centros públicos y privados y situados en contextos socioeconómicos favorables y desafiantes. Los resultados obtenidos muestran que los docentes conciben una evaluación socialmente justa conformada por seis elementos: una evaluación para el aprendizaje (más que del aprendizaje), equitativa y diferenciada para cada estudiante, participativa, que contribuya a la toma de conciencia social, que valore la autoestima y la empatía, y que favorezca y considere la capacidad reflexiva y critica de los estudiantes. Los hallazgos del estudio ponen de manifiesto la importancia de profundizar en concepciones sobre una evaluación socialmente justa del alumnado ya que la práctica evaluativa tiene claras repercusiones en la vida social y académica de los estudiantes.Palabras Clave: Evaluación de estudiantes, Evaluación socialmente justa, Concepciones de evaluación, Investigación fenomenográfica.ABSTRACTThe present study seeks to know assessment teachers’ conceptions about what is a socially just assessment. To achieve this objective, a phenomenographical research has been carried out in which 30 teachers of Primary and Secondary education have participated, from public and private schools located in favourable and challenging contexts. The results obtained show how teachers conceive a socially just assessment consisting of six elements: assessment for learning (rather than learning), equitable and differentiated for each student, that contributes to social awareness, which value self-esteem and empathy, and that favor and consider the reflective and critical capacity of students. The findings of our study show the importance of deepening into conceptions about a socially just assessment of students since assessment practice has clear repercussions in social and academic students’ life.Keywords: Students assessment, Socially just assessment, Assessment conceptions, Phenomenographic research.
Satisfaction degree of English teachers of Preschool and Primary Education in the Principality of Asturias
Authors: Fernández-Costales Alberto , González-Riaño Xosé Antón 
Published: November 2018

ABSTRACTThis paper analyses the satisfaction level of teachers of English in Preschool and Primary Education in the Principality of Asturias (Spain). The sample was composed of 238 teachers from 68 schools and the research tool was a 45-item questionnaire. Data were processed with SPSS, and variance analyses were performed to assess the impact of the variables considered. The main results confirm that general satisfaction is rather high, although it is possible to identify improvement proposals in relation to the social recognition of teaching, the professional status and the acknowledgement of the teaching activity by education authorities. In addition, the results show that age, educational stage, and administrative status influence teachers’ satisfaction.Keywords: Teacher satisfaction, English teachers, English as a Foreign Language (EFL), Preschool Education, Primary Education.RESUMENEste trabajo analiza la satisfacción docente de los maestros de Inglés en Educación Infantil y Primaria en el Principado de Asturias. La muestra del estudio incluye a 238 maestros de 68 centros y el instrumento de investigación fue un cuestionario de 45 ítems. Los datos obtenidos fueron procesados con SPSS y se realizaron análisis de la varianza para medir el impacto de las variables consideradas. Los principales resultados confirman que la satisfacción general de los docentes es elevada, aunque es posible identificar propuestas de mejora en relación con el reconocimiento social de la profesión, el estatus profesional, y el reconocimiento de la labor docente por parte de las autoridades educativas. Además, los resultados confirman que la edad, la etapa educativa, y el estatus administrativo tienen influencia en la satisfacción docente.Palabras Clave: Satisfacción docente, maestros de inglés, Inglés como lengua extranjera, Educación Infantil, Educación Primaria.
Delay differential equations as a tool for mathematical modelling of population dynamic
Authors: Glagolev Mikhail V. , Sabrekov Aleksandr F. , Goncharov Vladimir M. 
Published: November 2018

The manuscript constitutes a lecture from a course “Mathematical modelling of biological processes”, adapted to the format of the journal paper. This course of lectures is held by one of authors in Ugra State University.
Delay differential equations are widely used in different ecological and biological problems. It has to do with the fact that delay differential equations are able to take into account that different biological processes depend not only on the state of the system at the moment but on the state of the system in previous moments too. The most popular case of using delay differential equations in biology is modelling in population ecology (including the modelling of several interacting populations dynamic, for example, in predator-prey system). Also delay differential equations are considered in demography, immunology, epidemiology, molecular biology (to provide mathematical description of regulatory mechanisms in a cell functioning and division), physiology as well as for modelling certain important production processes (for example, in agriculture).
In the beginning of the paper as introduction some basic concepts of differential difference equation theory (delay differential equations are specific type of differential difference equations) is considered and their classification is presented. Then it is discussed in more detail how such an important equations of population dynamic as Maltus equation and logistic (Verhulst-Pearl) equation are transformed into corresponsive delay differential equations – Goudriaan-Roermund and Hutchinson.
Then several discussion questions on using of a delay differential equations in biological models are considered. It is noted that in a certain cases using of a delay differential equations lead to an incorrect behavior from the point of view of common sense. Namely solution of Goudriaan-Roermund equation with harvesting, stopped when all species were harvested, shows that spontaneous generation takes place in the system.
This incorrect interpretation has to do with the fact that delay differential equations are used to simplify considered models (that are usually are systems of ordinary differential equations). Using of integro-differential equations could be more appropriate because in these equations background could be taken into account in a more natural way. It is shown that Hutchinson equation can be obtained by simplification of Volterra integral equation with a help of Diraq delta function.
Finally, a few questions of analytical and numerical solution of delay differential equations are discussed.
Maternal and perinatal outcome in cholestasis of pregnancy: a study in tertiary care hospital in North India
Authors: Kant Anita , Goswami Shivani , Gupta Usha , Razdan Amrita , Amle Dnyanesh 
Published: November 2018

Background: Intrahepatic cholestasis of pregnancy (IHCP) is the most common pregnancy related liver disorder. It typically presents with troublesome itching and can lead to complications for both mother and fetus. Thus, authors aimed to assess risk factors associated with IHCP as well as maternal and fetal outcome in pregnancy associated with IHCP in north Indian population.Methods: This hospital based analytical observational case control study enrolled 44 subjects with IHCP and 44 normal healthy pregnant controls. The subjects were assessed for demographic parameters, obstetric history, liver function tests including Bile acids. Outcome was measured as various parameters related to delivery and maternal and fetal complications.Results: Study groups were matched for age (0.52). Frequency of primipara was higher in IHCP (p=0.01). Serum bilirubin (p=0.002), liver enzymes (p<0.0001 for all) and Bile acids (p=0.001) were significantly elevated in IHCP subjects compared to controls. Further, frequency of preterm birth was higher in IHCP (p=0.013). Fetal complications (p=0.01) and birth weight (p=0.03) were higher in IHCP subjects.Conclusions: IHCP is associated with higher risk of complications in infants and to lesser extent in mothers.
Liver function tests in patients of pre-eclampsia in Bhilai, Chhattisgarh, India: a clinical study
Authors: Lodhi Rashid , Roy Navanil 
Published: November 2018

Background: Pre-eclampsia is a multisystem disorder, which occurs only in pregnant women during the second and third trimesters of pregnancy and is associated with raised blood pressure and proteinuria. Liver function Test (LFT) abnormalities occur in 3% of the pregnancies and probably the lesion that causes elevated serum liver enzymes. This study was conducted to compare the liver function tests in pre-eclampsia with normal pregnancy.Methods: This study was carried out on 60 pregnant women after 20 weeks of gestation admitted in Obstetrics and Gynaecology units of Shri Shankaracharya Institute of Medical Sciences, Bhilai, and Chhattisgarh. The subjects were divided into two groups. Group A comprised of 30 cases of pre-eclampsia having blood pressure ≥ 140/90mm Hg, proteinuria in 24 hours ≥ 300 mg and edema. Group B had 30 normal pregnant women after 20 weeks of gestation. The data including parity, period of gestation, blood pressure and presenting complaints of all subjects were recorded. Serum bilirubin, total protein, albumin and plasma levels of liver enzymes ALT and AST were measured.Results: The mean value of serum bilirubin in cases was 3.45 and in controls it was 0.50. The mean value of enzymes ALT in cases was 92.7 while in the controls it was 22.37. Mean serum AST in the cases was 85.43 and in the controls, it was 21.96. Total protein in cases was 7.77 and controls it was 7.26. Albumin level in cases was 4.62 and controls were 4.17.Conclusions: Increased concentrations of serum bilirubin, total protein, albumin and liver enzymes ALT, AST were found in pre-eclampsia cases.
Survival and growth of <i>Swietenia macrophylla</i> seedlings from seeds sown into slash and burn fields in Quintana Roo, Mexico
Authors: Negreros-Castillo Patricia , Martínez-Salazar Imelda , Álvarez Aquino Claudia , Navarro Martínez Angélica , Mize Carl W. 
Published: November 2018

Un problème clé dans la gestion de la production de bois d’œuvre est d’assurer la régénération d’espèces ayant une valeur commerciale, telles que Swietenia macrophylla King (acajou), ce qui nécessite une connaissance approfondie des espèces concernées. Cet article rend compte des résultats du semis direct de l’acajou dans trois champs cultivés sur brûlis au cours de la dernière année de culture, à Betania, dans la région de Quintana Roo au Mexique. Dans chaque champ, 121 sites de semis ont été identifiés dans une parcelle de 0,25 ha, et cinq graines ont été semées dans chacun d’entre eux. La hauteur, le diamètre et les indications de dommages causés par Hypsipyla grandella de toutes les graines germées ont été enregistrés à 2, 11, 23, 38, 45 et 58 mois après le semis. Les niveaux d’ombrage et la couleur du sol ont été notés. À 11 mois, la mortalité chez les semis qui étaient vivants à 2 mois variait d’un champ à l’autre, mais ne variait pas selon le niveau d’ombrage ou la couleur du sol. Un champ a été abandonné après 11 mois car le protocole de recherche n’avait pas été respecté. En comparant les semis vivants à 58 mois avec les semis vivants à 2 mois mais morts à 58 mois, le pourcentage de survie variait selon les champs et selon les niveaux d’ombrage, mais ne variait pas selon la couleur du sol. Le diamètre moyen des semis vivants à 58 mois a été influencé par les conditions du champ, mais n’a pas varié selon la couleur du sol ou les niveaux d’ombrage. Leur hauteur moyenne variait d’un champ à l’autre, probablement en fonction de la couleur du sol, et n’était pas influencée par les niveaux d’ombrage. Deux mois après le semis, 20 % des sites de semis avaient au moins un semis. Cinq ans plus tard, 63 % de ces semis étaient morts, laissant 7,4 % des sites de semis occupés par un semis. La hauteur des semis à 58 mois variait de 0,3 à 8 m, avec une moyenne de 2,7 m. Fait remarquable, aucun des 212 semis observés ne montrait des signes de dommages causés par H. grandella, et le coût de la technique est minime. Les champs de milpa dans leur dernière année de culture semblent être des sites prometteurs pour la régénération de l’acajou à partir de graines dans un contexte de forêt tropicale mixte.
“Africa en Argentina. Enseñando historia africana en las universidades argentinas”
Authors: Pineau Marisa 
Published: November 2018

Todavía hoy la Argentina es vista por muchos (tanto a nivel doméstico como internacional) como un país de blancos, poblado mayormente por descendientes de europeos y tomando en poca consideración la participación de los pueblos originarios, africanos y de otras regiones del mundo en la construcción del estado nacional. Aún con este imaginario social extendido y con diferencias de acuerdo a las coyunturas políticas internas, en las universidades nacionales argentinas hay un interés por los estudios de historia de Africa que se remonta al momento de sus independencias y que se ha consolidado en el siglo XXI. En este trabajo nos proponemos reflexionar sobre los alcances y los límites de enseñar historia de Africa en Argentina, a partir de las experiencias desarrolladas en la Universidad de Buenos Aires, poniendo especial énfasis en las discusiones sobre interculturalidad, derechos humanos y cuestiones raciales.
Application of Degradable Alloys in Gas Lift Valve
Authors: Kumar Deepak , Xu Zhiyue , Chaemchaeng Parvinee 
Published: November 2018

Abstract
One of the limitations of the conventional gas lift system is that it requires wireline intervention step to swap the dummy gas-lift valve placed to facilitate well-pressurization with a live gas-lift valve needed for well production. This wireline intervention step can be costly, can cause HS&E issues, and can delay the hydrocarbon production. Hence, operators look for ways of bringing well to production without having to employ the wireline intervention.
The current paper discusses an intelligent gas-lift valve, which switches from a "dummy valve" configuration to "live valve" configuration without the need of external wireline intervention. The switch from dummy to live valve occurs via use of a temporary dis-integrable plug made out of proprietary degradable alloy, which completely degrades away in the well after the duration chosen by the operation. The valve design, the degradable alloy's property, and laboratory results aimed at demonstrating the usefulness of the intelligent GLV is discussed.
Rapid and Comprehensive Artificial Lift Systems Performance Analysis Through Data Analytics, Diagnostics and Solution Evaluation
Authors: Deng Lichi , Davani Ehsan , Darabi Hamed , Suicmez Vural Sander , Castiñeira David 
Published: November 2018

Abstract
Artificial lift systems (ALS) should be thoroughly analyzed to minimize non-productive time, increase production and reserves, reduce cost and failure, and maximize capital efficiency. This work proposes a novel systematic for ALS analysis approach that implements data analytics for historical performance tracking and benchmarking, heuristic diagnostics for suboptimal identification, and reliable model-based solutions for opportunity evaluation. The proposed methodology follows the principles of integrated reservoir management and greatly reduces the time to manage ALS systems by combining expert knowledge, data analysis with model-based calculation in pursuit of extreme efficiency and high accuracy. Our efficient workflow builds from intelligent data pre-processing capabilities, which facilitate fast and structured analysis of complex datasets. The metrics and scoreboard are intuitive, comprehensive and unique, and are scarcely documented in technical literature. These evaluations from various aspects generate different paths for asset management with diversified views.
By following a very systematic approach and incorporating industry standards and propriety analysis and metrics, this workflow leads to fast delivery of analysis/results that enable production engineers to make smarter decisions faster. Our solution makes the analysis unbiased, and integration of new datasets super easy. This could greatly benefit executive decision-making and operational practices in a field.
Pilot Installation of In-Well Digital Gas Lift System in PTTEP Sirikit Oilfield
Authors: Sompopsart Suwin , Toempromraj Wararit , Nadoon Apiwat , Chandakaew Rossawan , Weeramethachai Deephrom , Kiatrabile Thanita , Ben Amara Abdel , Makin Graham , Faux Stephen , Watson Peter 
Published: November 2018

Abstract

Objectives/Scope
This paper describes one of the first worldwide pilot implementations of a new generation of downhole digital gas lift system. This system brings a step change in the way gas lifted fields are completed and operated. In a joint effort between operator PTTEP and service company Silverwell, this digital intelligent system was successfully installed in one development well which deviated and depth around 7500 ft in the Sirikit onshore oilfield of Thailand. Well completion and commissioning were done in January 2017.

Methods, Procedures, Process
The digital and intelligent artificial lift technology is an in-well gas lift system that overcomes the well design and operational limitations of existing side-pocket mandrels and valves. This system enables the operator to optimize gas injection rate, and change the depth of injection to satisfy well conditions, and without any intervention required. Each in-well unit features up to six different sized orifice valves to accommodate a wide range of unloading and production conditions, as well as in-built pressure and temperature sensing capability. As reservoir conditions change the injection orifice can be remotely adjusted from surface and confirmed in real-time. Multiple in-well units can be connected by a single ¼" TEC cable.

Results, Observations, Conclusions
With regards to reservoir properties from logs and performance of near-by wells, PTTEP was expecting a fast decline in reservoir pressure. Therefore, the flexibility and real time optimization of the Silverwell system allowed them to monitor closely the changing reservoir conditions and adapt gas lift accordingly. The benefits observed in terms of reductions of interventions, production optimization and gas savings will be described in this paper.

Novel/Additive Information
One of the first worldwide pilot implementations of a new generation of downhole digital gas lift system, with results and benefits detailed in this paper.