bluuebunny/crossref_metadata_2025_split huggingface dataset:
Crecimiento Económico y su Impacto en el Empleo, el Caso de México
Authors: Villarreal Solis Francisco Martín , Gómez Romero José Gerardo Ignacio , Duarte Carranza José Ramón 
Published: October 2021

OBJETIVO: Evaluar los efectos de las reformas estructurales que ha venido implementando el gobierno de México, particularmente en cuanto a la apertura comercial, sobre indicadores de bienestar de los residentes domésticos.
MATERIAL Y MÉTODO: Con un enfoque cuantitativo y un diseño observacional y correlacional, mediante la metodología de Mínimos Cuadrados Ordinarios, este trabajo busca relaciones estadísticamente significativas entre indicadores de empleo y las exportaciones e importaciones, variables utilizadas como proxy del crecimiento.
RESULTADOS: Se encontró evidencia empírica sobre las relaciones entre indicadores de crecimiento y desarrollo en México. Los resultados de las estimaciones econométricas revelan, en general, que el incremento del crecimiento de los componentes de la Balanza Comercial mexicana está asociado a un deterioro de factores asociados al empleo.
CONCLUSIONES: Se confirman relaciones estadísticamente significativas entre variables de desarrollo y crecimiento económico. El análisis revela que el nivel de sueldos en el sector de la construcción y la tasa de informalidad laboral responden significativamente a los indicadores de crecimiento económico modelados. Por otro lado, los hallazgos sugieren que el incremento de indicadores de crecimiento puede impactar negativamente en aspectos relacionados al desarrollo.
PENGARUH MODEL PEMBELAJARAN MEDIA INTERAKTIF KAHOOT TERHADAP PENINGKATAN HASIL BELAJAR SISWA PADA MATA PELAJARAN KONSTRUKSI BANGUNAN DI SMKN 1 PERCUT SEI TUAN
Authors: Muhammad Panji , Muslim Khairul , Sidauruk Damayanti Veronika , Limbong Suci Amanah 
Published: October 2021

Abstrak
Tujuan riset ini untuk mengenali perbandingan hasil belajar antara kelas yang belajar memanfaatkan model pembelajaran media interaktif menggunakan platform KAHOOT! dengan kelas yang belajar dengan prosedur konvensional pada matapelajaran konstruksi bangunan untuk siswa kelas XI SMAN 1 Percut Sei Tuan. Eksperimen semu digunakan dalam riset ini dengan desain pre- test post- test kontrol tim. Sampel dipisah dalam kelompok eksperimen, yang memakai permainan pembelajaran KAHOOT! serta kelompok kontrol yang memakai prosedur konvensional. Memanfaatkan instrumen RPP serta soal tes. Bersumber pada informasi dilapangan, rata- rata nilai pre- test kelompok eksperimen 51, 57 serta kelompok kontrol 51, 87. Sesudah diberi perlakuan, rata- rata nilai kelompok eksperimen 83, 80 sebaliknya kelompok kontrol 74, 33. Hasil nilai signifikansi dari uji- t 0, 000&lt; 0, 05. Sehingga bisa disimpulan terdapat perbandingan hasil belajar yang signifikan antara kelas eksperimen serta kelas kontrol.
Kata kunci: Pengaruh, Media, Hasil Belajar

Abstract
The purpose of this research is to identify the comparison of learning outcomes between classes that learn to use the interactive media learning model using the KAHOOT! With a class that learns with conventional procedures on the subject of building construction for class XI students of SMAN 1 Percut Sei Tuan. A quasi-experiment was used in this research with a pre-test post-test control team design. The samples were separated into the experimental group, which used the KAHOOT! And a control group using conventional procedures. Utilize lesson plans and test questions. Based on information in the field, the average pre-test value of the experimental group was 51.57 and the control group was 51.87. After being given treatment, the average value of the experimental group was 83.80, while the control group was 74.33. The results of the significance value of the tests t 0, 000&lt; 0.05. So it can be concluded that there is a significant comparison of learning outcomes between the experimental class and the control class.
Keywords: Influence, Media, Learning Outcomes
ANALISIS KEBUTUHAN FASILITAS INSTRUKTUR RUANG TERBUKA PUBLIK DI TEPIAN SUNGAI MUSI
Authors: Hargianti Mita 
Published: October 2021

Abstrak
Keberadaan ruang terbuka publik ditepian sungai Musi, Palembang belum dapat dimanfaatkan secara optimal, seperti area pelataran 7 Ulu di Kawasan Kampung Kapitan yang sepi pengunjung. Pemanfaatan fungsi tepian sungai menjadi ruang terbuka publik tidak dibarengi dengan pembangunan fasilitas infrastruktur yang memadai. Melalui penelitian ini akan dikaji mengenai kebutuhan fasilitas, tingkat pelayanan dan nilai ekonomis pengembangan fasiltas di area pelataran 7 Ulu. Untuk dapat mengetahui apa saja yang perlu ditingkatkan, diperlukan pengamatan terhadap setting fisik dan aktivitas, pembobotan fasilitas eksisting berdasar kriteria waterfront design character dengan metode skala likert, analisis tingkat pelayanan pelataran dan kebutuhan fasilitas dengan metode level of service. Nilai investasi dari fasilitas yang ditambahkan dianalisis menggunakan net present value, payback periods, internal rate of return dan depresiasi. Dari analisis nilai investasi diketahui bahwa perencanaan fasilitas dermaga wisata, kulinery, papan iklan menjadikan perencanaan fasilitas 7 Ulu layak investasi. Peningkatan terhadap standar pelayanan umum seperti pencapaian menuju pelataran, fasilitas-fasilitas penunjang dan keamanan musti kontekstual dengan karakter kawasan sehingga penataan pelataran dapat mendukung kawasan pelestarian 7 Ulu.
Kata kunci: Fasilitas, Ruang Terbuka Publik

Abstract
The existence of public open space on the banks of the Musi river, Palembang has not been used optimally, such as the 7 Ulu courtyard area in the Kapitan Village area which is empty of visitors. Utilization of the function of river banks into public open spaces is not accompanied by the development of adequate infrastructure facilities. Through this research, it will be studied about the need for facilities, service levels and the economic value of developing facilities in the courtyard area of ​​7 Ulu. To be able to find out what needs to be improved, it is necessary to observe the physical setting and activities, the weighting of the existing facilities based on the waterfront design character criteria using the Likert scale method, analysis of the level of service in the yard and the need for facilities using the level of service method. The investment value of the added facilities was analyzed using net present value, payback periods, internal rate of return and depreciation. From the analysis of the investment value, it is known that the planning of tourist pier facilities, culinary, and billboards makes the planning of the 7 Ulu facility worthy of investment. Improvement of public service standards such as reaching the courtyard, supporting facilities and security must be contextual with the character of the area so that the arrangement of the courtyard can support the 7 Ulu conservation area
Keywords: Facilities, Public Open Spaces
Heavy Weight Cement System for Corrosive Environment: Preventing Strength Retrogression and H2S Corrosion
Authors: Ramazanova Yulia , Akhmetzianov Ilshat , Sukhachev Vasilii , Sozonov Alexander , Nafikova Svetlana , Yuldashev Shamil , Jain Bipin , Zvyagin Vasily , Kim Alexander , Khamidullin Denis 
Published: October 2021

Abstract
Well cementing in high temperature and hydrogen sulfide (H2S) corrosive environment presents challenges in preventing cement compressive strength retrogression and selecting weighting agents inert to H2S.
This paper presents the development of a cementing system for high pressure high temperature (HPHT) well with bottom hole static temperature in excess of 165°C, a drilling fluid density of 2.19 SG and a high concentration of H2S. A major operator in the Caspian Sea region accepted the cement design and successfully used it on the production liner section of the HPHT well.
Cementing of the production liner was complex due to the requirement for a high-density cement system, narrow margin between the pore pressure and frac gradient, HPHT conditions and 18% H2S concentration in the formation fluid. Comprehensive laboratory testing was performed to evaluate the properties of the cement system including measurements of thickening time and compressive strength evaluation using a UCA and destructive method using ultra-HPHT curing chamber for cube sample curing.
The presence of H2S limited the use of conventional weighting agents such as hematite and hausmannite, and the high temperature environment dictated the need for quartz silica. These factors required a nonstandard approach to cement blend formulation and flowability assessment.
During cement system optimization, the target slurry density was achieved using barite which has a lower density compared to other common weighting agents and significantly reduces cement content in the blend but also is inert to H2S corrosion.
A further challenge encountered during cement system optimization was strength retrogression that could not be prevented by the conventional approach of adding 30-40% quartz silica by weight of cement into the system. To overcome strength retrogression, much higher concentrations of silica were required. As a result, the low cement content led to insufficient compressive strength development at liner hanger depth. A solution was found by adding a Vinylamide/Vinylsulfonated polymer (VA/VS) polymer in a certain proportion to the slurry design. Thus, at elevated temperatures, it was observed that the VA/VS polymer tended not to delay compressive strength development while still extending the slurry thickening time.
The developed heavy weight cement system was successfully implemented to isolate the 7-in liner on HPHT well. All the stages of job planning, design and execution, along with the slurry optimization process are presented.
Optimized Coiled Tubing Approach in Offshore Multi-Stage Hydraulic Fracturing Project
Authors: Rahimov K. , Correa P. , Sharipov R. 
Published: October 2021

Abstract
Operator at the Russian segment of the Caspian sea offshore, engineered a project to drill and complete four experimental horizontal extended reach wells with very aggressive trajectories, into tight Oil & Gas bearing formations with further mission to complete them with multiple hydraulic fracturing. This resulted in a selection of complex completion design with multiple shifting sleeves to allow efficient multistage frac treatment and subsequent production of each zone.
Technical challenge of the project was to deliver enough force into shifting sleeves to manipulate them with close-open-close cycle, in a horizontal extended reach wellbore with average 2800mMD (1900mTVD) with anticipated excessive proppant accumulation after each treatment, and it was expected to further restrict the required force delivery in extended reach wellbore.
Challenges were addressed during well design stage, by using a proprietary engineering simulation software to analyze the large spectrum of the Coiled tubing string with different mechanical properties. Additionally, feasibility study, considered the application of downhole aids to overcome wellbore cleanout issues, helical buckling and friction lock-up, to deliver required force to the shifting devices.
A critical part for the effective delivery of the operations was the time spent designing each intervention individually. Having the expertise to perform proper project management, provided the opportunity to identify several potential challenges that could appear during the campaign. Numerous simulations of tubing force analysis were performed, considering different string configurations, in the intent of overcoming the difficulties resulting from the unconventional trajectories of the wells. One important selection made, was the extended reach auxiliary options, which could aid in reaching the target depths with enough WoB to shift the sleeves. The feasibility study also included extensive simulations on options to remove solids from the wellbore on an efficient manner
This paper details out the design specification of the Coiled Tubing technologies selected for the projects as well as address the engineering and operational challenges and solutions proposed to deliver the successful offshore campaign. First time use of the large 2 5/8" OD coiled Tubing string in Offshore Caspian sea and related operational and logistical challenges are the novelties discussed in this paper. Paper also highlights the operation sequence and success of the selected pipe design and downhole approach.
Combined Application of Deep Boundary Detection Tool, Multilayer Data Inversion and 3D Visualization of Seismic Data in Real Time for Geosteering on the Oilfield in the Russian Federation
Authors: Oshakbayev Chingis , Romanov Roman , Vlassenko Valentin , Austin Simon , Kovalev Sergey , Shatalov Sergey , Platonov Rostislav , Osipov Aidos 
Published: October 2021

Abstract
Currently drilling of horizontal wells is a common enhanced oil recovery method. Geosteering services are often used for accurate well placement, which makes it possible to achieve a significant increase in production at relatively low cost.
This paper describes the result of using seismic data in three-dimensional visualization for high-quality geosteering using a deep boundary detection tool and multilayer inversion in real time.
Crossing the top of the reservoir while drilling horizontal sections at the current oilfield is unacceptable, due to the presence of reactive mudstones. In case of crossing the top of reservoir, further work on running and installing the liner becomes impossible due to instability and may lead to well collapse.
Based on prewell analysis of the structural data, the well was not supposed to approach the top of the target formation along the planned profile. However, while preparing geosteering model and analyzing seismic data it became possible to reveal that risk, elaborate its mitigation and eventually increase the length of the horizontal section.
Such integrated analysis made it possible to maintain the wellbore within the target reservoirs, as well as to update the structural bedding of the top based on the multilayer inversion results.
Petroleum Systems Modeling and Hydrocarbon Migration and Oil Potential Assessment of the Southern Side of Pre-Caspian Basin, Kazakhstan
Authors: Urmanova Dilyara 
Published: October 2021

Abstract
An active oil system is recognized from the data in the Tengiz-Primorsky uplift zone of the southern edge of the Pre-Caspian Basin in stratigraphic ascending and structural traps of the Famennian carbonate reservoir. This area is considered one of the most high-yeilding gas provinces in Kazakhstan. However, the timing of the displacement and migration of hydrocarbons depending on the formation of traps remains unclear. To reduce this uncertainty, an attempt was made to analyze a cross-sectional model that takes into account seismic structural interpretation and data from the Ansagan 1 well to simulate history, temperature, sourcerock maturity and pressure regimes over geological time. The displacement of hydrocarbons from the original rocks and further HC migration were modeled using 2D reservoir fluid flow modeling based on the Darcy flow equation. The main blocks of the source rocks correspond to the Devonian complex with the influence of algal lipids or organic matter enriched in lipids (type I kerogen). The maturity trend increases from east to west due to higher burial.
The general objectives of this article were to set goals and determine the level of detalization of the research; selection and preparation of input data, filling the model with information, restoring the basin immersion history, calculating the thermal model, and determining the maturity of source deposits, calibrating the thermal model, calculating HC emigration; assessment of migration routes.
Application of Biomarkers and Oil Fingerprinting for Genetic Classification of Oil and Prediction of Petroleum Migration Pathways of Aryskum Downfold of South-Torgay Depression
Authors: Seitkhaziyev Yessimkhan Sherekhanovich , Uteyev Rakhim Nagangaliyevich , Sarsenbekov Nariman Danebekovich 
Published: October 2021

Abstract
This article presents the results of fingerprinting and biomarker analysis of 254 oil samples derived from 11 different fields and structures in Aryskum downfold of the South-Torgay depression for genetic classification of oils and prediction of petroleum migration pathways. According to the oil fingerprinting results based on patented Shell technology, 12 groups of oils were found: oils in reservoirs of central part of Nuraly field form the first group, while oils in the producing horizons of Western Nuraly, Southern Khayrgeldy, Akshabulak East and fluvial beds of Central Akshabulak fields form the second group. The oils related to the third group were found in the wells exploiting producing horizon I in the north dome of Central Akshabulak, while the oils from wells penetrating lower producing horizons(III-IV-V) of Central Akshabulak, upper producing horizons in South dome of Central Akshabulak and of all producing horizons of the north dome of Akshabulak South constitute the fourth group.
The fifth group includes only one oil sample of different genesis from well № 37, which penetrates the paleo-channel №13 at South Akshabulak. The genetic difference of this oil from other oils was also confirmed by its biomarker composition. Most of oil fingerprinting star plots in Aksay field are identical and form the sixth group, although the seventh group comprises only one oil № 47 in Aksay. Sample set with №8 was discovered in the pay zones of Taur field and well № 75, exploiting the same horizon in the northern part of Aksay. The ninth oil group was identified in cretaceous producing layers of the Khairgeldy South-West field and Jurassic beds of the Khargeldy North field, while the identical composition of the cretaceous oil from the Khairgeldy North and Khairgeldy fields forms the tenth group. The last eleventh group includes oil from well №. 12 on South-west Khairgeldy, although it has some similarities with Taur oils.
For 20 oil samples was carried out biomarker analysis, according to the results of which all studied oils were formed in terrigenous (shaly) OM, deposited in lacustrine environment. Oils from central Nuraly are more thermally mature and lighter in density than those from western Nuraly. Oils of Akshabulak East are thermally less mature than oils of Central Akshabulak and Akshabulak South despite its deeper deposition.
Based on the performed analysis, in the conclusion were presented 5 prospective hydrocarbon accumulation zones for increasing hydrocarbon reserves in the future. But the results of the performed studies provide valuable information only when integrated with confirmed geological and seismic data.
COVID-19 Health Management and Business Continuity
Authors: Amin Zada Sayamak 
Published: October 2021

Abstract
Considering the world faces an unprecedented challenge with economies everywhere affected by the COVID-19 pandemic there was an extreme need for coming together to combat the COVID-19 pandemic bringing governments, organizations from across industries and individuals together to manage this global outbreak.
From the early stages of pandemic escalation, SOCAR AQS realized that only diversified measures would minimize risks, fulfil the duty of care responsibilities and promote workforce resilience.
The establishment of the COVID-19 crisis management team ensured the continuous application of a proactive risk-based approach aligned with governmental regulations on the ground of the most up to date local and international information including the industry best practices. Access to the offices for all relevant staff and visitors was minimized, and the specific procedure for work from home was developed.
A combination of preventive measures at all worksites and transportation facilities is held through regular effective disinfection, health checks, continuous access to the required personal protection and hygiene facilities, maintaining social distancing, and careful tracing close contacts for all suspected cases. Health promotion to all staff is conducted through various communication means. Two-stage pre-mobilization COVID-19 screening was implemented through a comprehensive health questionnaire prior to commuting at the entrance of quarantine facilities. There was a week of individual isolation in the designated controlled quarantine facilities with optimal detectability of the virus by the fifth day followed by highly-specific PCR testing before entering operational worksites enables early revealing of an infection prior to its manifestation in the human body. Specific post-illness medical assessment is a key for individual healthy return to work is carried out. Considering vaccines as a critical new tool in the battle against COVID-19, vaccination of all offshore personnel is implemented.
As an outcome, the entire process provided a prudent way to ensure the continuation of uninterrupted operations resulted in zero COVID-19 detection at the quarantine worksites by follow-up of suspected cases during first eight months of the pandemic fight in Azerbaijan.
In conclusion, the abovementioned statement provides the guidelines for the workforce working on worksites or in offices, and clear expectations of the measures to be taken to ensure COVID-19 health management and smooth business continuity are maintained.