bluuebunny/crossref_metadata_2025 huggingface dataset:
Methods for extracting lithium from the reservoir waters of oil fields and brine (Review)
Authors:   National Center on complex processing of mineral raw materials of the Republic of Kazakhstan, Berdikulova F.A. , Serikbayev A.K. ,   Sh. Yessenov Caspian university of technology and engineering
Published: January 2025

Currently, special attention is required at the government level in Kazakhstan to the exploration
and development of lithium deposits, in the future-industrially cost-effective technologies for the
production of this light rare earth metal. Lithium is an important raw material for developed countries.
In Kazakhstan, 7 lithium deposits have been explored in the East Kazakhstan region, which are not
involved in industrial processing. Recently, the production of lithium from salt solutions has been
developing rapidly Salt solutions usually contain high concentrations of magnesium, potassium
and sodium, as well as many other elements, including Boron, in addition to lithium. From the salt
solution, sodium, potassium and magnesium chlorides evaporate in the sun to crystallize, leaving
a concentrated solution of lithium chloride. It is estimated that lithium carbonate mining using salt
ponds is 30-50% cheaper than lithium mining in hard rocks. Evaporation of brine Although the
use of open ponds is nominally cheap, the evaporation process requires a lot of time, large land
resources, and also the most important resource, water is used irrationally. Therefore, there is a
growing trend towards the development of technology and processes for the "direct extraction"
of lithium from salt solutions for geothermal and traditional lithium sources. These are methods
of direct extraction, sorption, and precipitation. The number of scientific publications devoted to
the extraction of lithium from various sources is constantly growing, but there is very little data
on specific processes or technologies for the extraction of lithium from salt solutions of oil fields. Several technologies can be used to extract lithium from various salt solutions, such as solar evaporation, precipitation, adsorption, ion exchange, solvent extraction and membrane processes. However, when it comes to extracting lithium from oilfield salt solutions, only some of the methods mentioned can be used. He developed a technology for lithium enrichment of individual deposits of salt solutions. Despite numerous recently published scientific papers concerning the development of new methods for direct lithium extraction, in almost all the cases described above, adsorption processes only in lithium-ion sieves are used to extract lithium from salt solutions of oil fields on a large scale (unlike laboratory solutions).
Analysis of the effectiveness of reagents for correcting the profile and isolation of water inflow
Authors:   S. Yessenov Caspian State University of Technologies and Engineering, Togasheva A. , Bayamirova R. ,   S. Yessenov Caspian State University of Technologies and Engineering, Zholbassarova A. ,   S. Yessenov Caspian State University of Technologies and Engineering, Sarbopeyeva M. ,   S. Yessenov Caspian State University of Technologies and Engineering, Saduakasov D. ,   S. Yessenov Caspian State University of Technologies and Engineering, Khamzina B. ,   Zhangir Khan West Kazakhstan Agrarian Technical University, Zhumagaliyeva N. ,   Zhangir Khan West Kazakhstan Agrarian Technical University, Bisengaliev M. ,   S. Utebaev Atyrau University of Oil and Gas, Kalzhanova A. ,   S. Yessenov Caspian State University of Technologies and Engineering
Published: January 2025

The article considers the assessment of the conformity of the reagent sused to a lign the
profilean disolate the water inflow to the conditions of the deposits of MMGJSC. In the process of
profilealignment, a highly permeabletube was isolated in the two-tube model, until the liquid was
not separated from the tube. During subsequentinjection, liquid was observe denteringa highly
permeable zone.After the experiment, the modelwasdisassembledand an accumulation of reagent
was foundin the end face of the model. Anassessment of the connection of the layers is given,aswell
as an assessment of the effectivenessafter the use of reagents. Currently, mostoilwells in the
Kalamkas field take about 200 m3 per day, depending on reservoir condition sand the capacity of the receiving reservoir, the profile align mentradiusisonly 5-7 meters. Due to the limited radius, the effective nessof the align ment works has a short-term period.
Assessment of the safe operation of main gas pipelines
Authors:   Satbayev University, Bakesheva A.T. , Akpanbayev R.S. ,   Satbayev University, Smagulov N.N. ,   Satbayev University, Yelzhanova M.N. ,   Satbayev University, Omarov D.M. ,   Satbayev University
Published: January 2025

This work is devoted to improving the safety and reliability of the operation of main gas pipelines
through a detailed assessment of their condition using the developed probabilistic deterministic
model. The model allows you to calculate the probability of trouble-free operation of pipelines,
which is critically important both at the design stage and during operation. The article analyzes
defects that occur when using gas pipelines, including corrosion of pipe metal, which is one of
the main causes of accidents, as shown by the example of technical investigation of incidents on
Kazakh gas pipelines. Studies conducted by domestic companies have revealed that corrosion
cracking due to the high corrosion activity of soils seriously threatens the safety of gas pipelines
in Kazakhstan. The acceleration of the cracking process exacerbates the problem, making these
damages especially dangerous for the structural integrity of metal pipelines and, accordingly, pose
a significant challenge to the global gas transportation system. To combat these problems, the use of modern technologies is proposed, including robotic in-line
diagnostics and remote methods for assessing the condition of gas pipelines, such as unmanned
systems and aerospace research. These methods make it possible not only to predict corrosion and
other types of damage on all types of gas pipelines, but also to detect cracks, ruptures and areas
of gas leaks. In addition, they contribute to monitoring the environmental situation along the gas
pipelines and provide complete and reliable information about the condition of not only control, but
also all sections of the route. The application of these advanced diagnostic methods ensures the
continuous and safe operation of the gas transmission system, ensuring a stable supply of natural
gas to consumers, thereby increasing the overall safety and efficiency of gas supply.
Effectiveness of dimethylethynylcarbinol and methyl tert-butyl ether on octane number increase of gasoline compositions
Authors:   Safi Utebayev Atyrau University of Oil and Gas, Gilazhov Y.G. , Kulbatyrov D.K. ,   Safi Utebayev Atyrau University of Oil and Gas, Urazgalieva M.D. ,   Safi Utebayev Atyrau University of Oil and Gas, Kuznetsova N.K. ,   Safi Utebayev Atyrau University of Oil and Gas, Zhexembayeva A.Zh. ,   Safi Utebayev Atyrau University of Oil and Gas
Published: January 2025

Despite the significant increase in requirements to the quality of motor fuel, harmful exhaust
gases from gasoline combustion are still a major environmental problem. Today gasoline occupies
one of the leading positions among primary energy sources. The problem of improving the quality
of gasoline is one of the urgent problems of the chemical industry. In order to reduce harmful
exhaust emissions from internal combustion engines, improve the detonation resistance of fuels
and utilize renewable fuels, many different oxygen-containing additives are added to base gasoline.
The research and development of new oxygen-containing additives for gasoline based on tertiary
acetylene alcohols is an important and urgent task.
The influence of dimethylethynylcarbinol (DMEC) and methyl tert-butyl ether (MTBE) on the
increase of octane number of gasoline compositions was evaluated by the increase of octane number
of straight-run gasoline and reforming gasoline blends in the ratios of 30:70 and 20:80. Aliphatic acetylene alcohol DMEС was obtained by condensation of acetone and acetylene under Favorsky
reaction conditions. The physicochemical properties of the synthesized DMEС correspond to the
literature data. Straight-run gasoline and reforming gasoline produced by “Atyrau Oil Refinery” LLP
were used for the study. Determination of octane number of gasoline compositions containing the
proposed additives was carried out by express method on the gasoline detonation resistance meter
on the octanometer SHATOX SX-100K. It was determined that DMEС is an effective oxygenate
additive for increasing the octane number of gasoline compositions compared to MTBE. The
research of influence of oxygenates as MTBE and DMEС on increase of octane number of gasoline
compositions consisting of straight-run gasoline and reforming gasoline in different ratios showed
that increase of octane number at addition of DMEС is higher than at addition of MTBE. According
to the results of research, tertiary acetylene alcohol - DMEС can be proposed as an oxygencontaining additive to motor gasoline.
ANALYSIS OF THE EFFECTIVENESS OF POLYMER SOLUTION INJECTION AT THE "WEST" SECTION OF THE KALAMKAS FIELD
Authors:   Sh. Yessenov Caspian State University of Technologies and Engineering, ZHOLBASAROVA A.T. , KHAYITOV O.G. ,   TASHKENT STATE TECHNICAL UNIVERSITY NAMED AFTER I. KARIMOV, BAYAMIROVA R.Y. ,   Sh. Yessenov Caspian State University of Technologies and Engineering, SARBOPEYEVA M.D. ,   Sh. Yessenov Caspian State University of Technologies and Engineering, TABYLGANOV M.T. ,   Sh. Yessenov Caspian State University of Technologies and Engineering, SADUAKASOV D.S. ,   Sh. Yessenov Caspian State University of Technologies and Engineering, TOGASHEVA A.R. ,   Sh. Yessenov Caspian State University of Technologies and Engineering
Published: January 2025

This article presents an analysis of the effectiveness of polymer flooding technology at the
Zapad site. The main purpose of the study was to evaluate the effect of injection of a polymer solution on increasing the oil recovery coefficient (ORC) and reducing the water content of products. During the experiment, a polymer solution based on polyacrylamide was used, which was injected into a formation with low permeability. To assess the effectiveness, changes in the flow rate of liquid, oil and water were monitored, as well as an analysis of pressure dynamics in wells. The results of the study showed that the injection of a polymer solution made it possible to significantly increase the oil recovery of the reservoir, increasing the ORC by 3.8% compared with traditional flooding methods. It was also revealed a decrease in the water content of products by 9.3% due to an improvement in the distribution of fluid flows in the reservoir. These results confirm the expediency of using polymer flooding to increase the efficiency of mining in areas with similar geological and physical conditions. The conducted research can serve as a basis for optimizing field development schemes and the introduction of new technologies to enhance oil recovery at other facilities.
INVESTIGATION OF THE WORK OF THE MP-1 SAMPLER TO DETERMINE THE INDICATORS OF BOREHOLE PRODUCTION AT THE KARAZHANBAS FIELD
Authors:   Sh. Yessenov Caspian State University of Technologies and Engineering, BAYAMIROVA R.Y. , YERZHANOVA Z.T. ,   Zhangir Khan West Kazakhstan Agrarian Technical University, TOGASHEVA A.R. ,   Sh. Yessenov Caspian State University of Technologies and Engineering, SARBOPEYEVA M.D. ,   Sh. Yessenov Caspian State University of Technologies and Engineering, SADUAKASOV D.S. ,   Sh. Yessenov Caspian State University of Technologies and Engineering, TABYLGANOV M.T. ,   Sh. Yessenov Caspian State University of Technologies and Engineering, ZHOLBASAROVA A.T. ,   Sh. Yessenov Caspian State University of Technologies and Engineering
Published: January 2025

As part of the implementation of a comprehensive development project, new impact technologies
were created and introduced initially at the experimental sites in order to increase the efficiency of hot
water injection to maintain reservoir pressure and reservoir temperature, intensify the development
process, increase the current and final ORC: stepwise thermal flooding (STF), figured flooding (FF),
separate development of low-yield (refineries) and highly productive (HPZ) zones. The introduction
of these technologies at the field contributed to an increase in the coverage of the process of
displacement of poorly drained oil reserves, stabilization of oil withdrawals and provided additional oil production, which takes into account the efficiency of hot water injection. The upcoming geological,
technological and production works of many oil fields depend on the results of water samples from
the wellhead with the flow rate of the extracted liquid. Therefore, determining the exact percentage
of water in the production of wells is one of the main goals. Poor quality of well testing data may not
be better than their complete absence, especially for specialists in field development planning or
production management. The article considers a diverse sampler, describes its role as an addition
to multiphase flowmeters, which allows to obtain fluid samples without traditional separators.
NUMERICAL CALCULATIONS OF THE IMPELLER OF A CENTRIFUGAL PUMP USED IN THE OIL AND GAS INDUSTRY
Authors:   Safi Utebayev Atyrau University of Oil and Gas, MEDETOV Sh.M. , ZHANTURIN Zh.K. ,   Safi Utebayev Atyrau University of Oil and Gas, ZAIDEMOVA Zh.K. ,   Safi Utebayev Atyrau University of Oil and Gas, ABISHEV M.N. ,   Safi Utebayev Atyrau University of Oil and Gas, DOSANOVA G.М. ,   Safi Utebayev Atyrau University of Oil and Gas
Published: January 2025

Pumps are used to transport liquid products within technological installations inside and outside
any petrochemical industry enterprise. Pumps are also used in drilling oil and gas wells.
The share of centrifugal pumps at field oil treatment facilities and refineries can reach more than
80%. Centrifugal pumps are characterized by high performance, simplicity of design, compactness,
versatility, uniform flow, high efficiency (for large units – 0.75-0.9), etc. The main element of a centrifugal
pump is an impeller with curved blades mounted on a shaft and driven by an electric motor. In this regard,
further improvement of the design of the centrifugal pump, including its main element – the impeller,
as well as the use of modern computer-based calculation methods in this process is an urgent task.
The design of the wheel is largely determined by its speed coefficient ns.
With an increase in the speed coefficient, an increase in the relative width of the impeller blade
at the outlet and a decrease in its relative outer diameter, t, e. the impeller is converted sequentially
from radial to axial.
To determine the speed coefficient when switching to a multistage pump, the pressure created
by one stage should be divided by the number of stages. This fact is not reflected in the source,
which caused difficulty in the calculation.
Special attention should be paid to improving the design of centrifugal pumps and the use
of advanced computer calculation methods. Python is one of the most popular general–purpose
programming languages. It is among the fastest available programming languages in the world
and is used by software engineers, mathematicians, data analysts, scientists, network engineers,
students and accountants.
An algorithm and a program in Python were compiled and the result was obtained using the
source data.
The practical significance of the research lies in the fact that the results of the work performed
on the topic "Numerical calculations of the impeller of a centrifugal pump used in the oil and gas
industry" can be used as a base for theoretical research, analytical and design activities of authors
studying this area. The second aspect of the practical significance of this study is the possibility
of using the results of the study within the framework of the topic "Numerical calculations of the
impeller of a centrifugal pump used in the oil and gas industry" in order to develop the mechanism
of functioning of the object under study.
RELIABILITY AND STABILITY OF ELECTRICAL SYSTEMS OF OIL AND GAS COMPLEXES
Authors:   S.Seifullin Kazakh Agrotechnical Research University, DZHUMAMUKHAMBETOV N.G. , YASHKOV V.A. ,   S. Utebaev Atyrau University of Oil and Gas, KONARBAYEVA A.A. ,   S. Utebaev Atyrau University of Oil and Gas
Published: January 2025

The problem of stability of electrical engineering systems (EЕS) is relevant for enterprises of
continuous oil and gas production, sensitive even to short-term power supply disruptions, which
are caused and inevitable by emergency disturbances, which is defined as dynamic stability.
The EЕS of oil and gas facilities, which contain a motor load in the form of synchronous and
asynchronous electric motors, complicates the emergency situation in case of loss of stability. This
requires defining the boundary of dynamic stability and the parameters characterizing dynamic
stability in the form of mathematical models.
The analysis of the reliability of the EЕS showed a problem for most objects of oil and gas
complexes (ОGC) in the form of external and internal disturbances, leading in some cases to a
complete stop or partial collapse of the technological process, due to low dynamic stability, which
requires constant maintenance of set voltage levels at the control points of the EЕS and ensuring
the necessary balance of reactive power.
The article provides information about one of the complex post-accident processes, such as
the dynamic stability of electrical systems, violations of which can lead to significant direct and
indirect losses, defines the boundaries of static and dynamic stability, proposes mathematical
models that determine a dynamically stable EЕS and provides means to increase the dynamic
stability of EЕS.
As a result of the analysis of the reliability of the EЕS, the numerical integration of differential
equations describing the behavior of the EЕS in the form of mathematical models is presented,
which shows the parameters that allow to increase the dynamic stability of the EЕS ОGС.
SAND PRODUCTION CONTROL IN KAZAKHSTAN OILFIELDS USING A MULTIPHASE CFD-DEM MODEL
Authors:   Kazakh-British Technical University, KHAMITOV F. , KASSENOV A. ,   Kazakh-British Technical University, SARSENOVA A. ,   Kazakh-British Technical University
Published: January 2025

Sand production is a significant issue in Kazakhstan’s oil and gas fields with unconsolidated
formations involving the multiphase flow (water-oil) of reservoir fluids and solid particles. The sand control approach includes the multiscale mechanisms of sand production, particularly fluid flow and
particle movement. This study investigates sand production and oil recovery in multiphase flow
using coupled Computational Fluid Dynamics and Discrete Element Method (CFD-DEM) modeling
on a cubic sandstone sample, focusing on a traditional vertical producing well. The weak sandstone
formations model was used to simulate sand particle extraction from Object 2 of the Karazhanbas
oilfield. The four cases with different sieve sizes and one without sieve were simulated. The sieve
sizes were chosen based on sample particle size distribution (PSD). The transient sand production
behavior in simulations without a sieve was observed and showed qualitative agreement with
the literature data. Sieve size significantly impact sand production, with smaller sieves reducing
extraction rates. Effective sand control was achieved with sieve diameters up to 3d50 (average
particle diameter), beyond which further increases did not prevent sand production. The sieve
implementation had a multiplicative effect: controlling sand production and improving the oil recovery factor by up to 21%.
HYDROGEN-FREE TECHNOLOGY FOR PROCESSING PETROLEUM FRACTIONS ON MULTIFUNCTIONAL ZEOLITE CATALYSTS
Authors:   D.V. SOKOLSKY INSTITUTE OF FUEL, CATALYSIS AND ELECTROCHEMISTRY, TUKTIN B.T. , NURZHANOVA S.В. ,   D.V. SOKOLSKY INSTITUTE OF FUEL, CATALYSIS AND ELECTROCHEMISTRY, SEIDILDA G.T. ,   D.V. SOKOLSKY INSTITUTE OF FUEL, CATALYSIS AND ELECTROCHEMISTRY, NURLAN A. ,   D.V. SOKOLSKY INSTITUTE OF FUEL, CATALYSIS AND ELECTROCHEMISTRY, TILEUMAGAMBETOV М.N. ,   D.V. SOKOLSKY INSTITUTE OF FUEL, CATALYSIS AND ELECTROCHEMISTRY
Published: January 2025

The process of hydrogen-free processing of petroleum fractions on zeolite- containing
catalysts was implemented at a laboratory catalytic plant under conditions of varying technological
parameters. Modification was carried out with metals with variable valence, REM, and phosphorus.
It is shown that in the process of refining gas condensates and petroleum fractions (gasoline
and diesel) without hydrogen-containing gas, the catalytic properties, activity and selectivity of
synthesized catalysts depend on the nature and concentration of the introduced modifiers, the
structure and condition of the active centers and the conditions of the process. The directions
of hydrocarbon transformations in the process of anhydrous refining on a zeolite catalyst are
considered. It has been established that the catalysts have multifunctional properties, and
are capable of simultaneously conducting several reactions: cracking, hydrodesulfurization,
dehydrogenation, isomerization, dehydrocyclization, alkylation.
The physicochemical characteristics of zeolite-containing catalysts have been studied by
electron microscopy and thermal desorption of ammonia. It is shown that acidic centers coexist
with metallic ones on the surface of the developed catalysts. The composition of acid centers
may include metals in various degrees of oxidation, fixed both inside the zeolite cavities and on
their outer side.
FEATURES OF THE USE OF MICELLAR SOLUTION FOR THE INTENSIFICATION OF OIL PRODUCTION IN THE FIELDS
Authors:   K. Zhubanov Aktobe Regional University, BALGYNOVA A.M. , SARKULOVA Zh.S. ,   K. Zhubanov Aktobe Regional University, ORAZBEKOVA R.Zh. ,   K. Zhubanov Aktobe Regional University, ISSENGALIYEVA G.A. ,   K. Zhubanov Aktobe Regional University, TEMIRKHANOVA M.M. ,   K. Zhubanov Aktobe Regional University, NURKASSYM D.S. ,   K. Zhubanov Aktobe Regional University
Published: January 2025

This article examines the features of the use of micellar solutions for the intensification of oil
production in the fields. The composition of micellar solutions and their effect on physico-chemical
properties in the oil layer are analyzed. The mechanisms of action of micellar solutions in increasing
the efficiency of oil production are considered. The study took into account regional geological
and technological features and determined the optimal parameters for the introduction of micellar
solution. The results of the work will increase oil production through the effective use of micellar
solutions and improve the economic performance of the region in the oil industry.
As a result, it will contribute to the introduction of technologies aimed at the effective use
of micellar solutions in the country's oil and gas industry. Considering the composition of the
micellar solution at maximum and minimum, it can be noted that this method is effective. This
method allows not only to increase the economic efficiency of oil production, but also to reduce the
environmental impact. The proposed solutions can become the basis for supporting scientific and
technical innovations in the oil and gas industry and improving industrial processes.
Konsekuensi Hukum dan Tantangan Penggunaan Konten YouTube sebagai Jaminan Fidusia dalam Ekonomi Kreatif di Indonesia
Authors: Achmad Akbar Adi Satria , Budiman Anwar , Wiryadi Uyan
Published: January 2025

Penelitian ini menganalisis kendala dalam implementasi penggunaan konten YouTube sebagai jaminan fidusia serta konsekuensi hukumnya di Indonesia. Berdasarkan Undang-Undang Hak Cipta dan Peraturan Pemerintah tentang Ekonomi Kreatif, karya intelektual dapat dijadikan sebagai objek jaminan fidusia. Namun, implementasinya di lapangan menghadapi berbagai kendala, seperti ketiadaan lembaga yang dapat menilai nilai konten YouTube, ketidakjelasan bentuk akta notaris yang sesuai, dan keraguan lembaga keuangan dalam menerima konten sebagai jaminan. Penelitian ini menggunakan metode yuridis normatif yang didukung oleh wawancara lapangan dan data dari informan kunci. Hasil penelitian menunjukkan bahwa belum terbentuknya infrastruktur hukum dan kelembagaan yang memadai merupakan penghambat utama. Kesimpulannya, agar skema ini dapat terlaksana dengan baik, pemerintah perlu membentuk lembaga berwenang yang bertugas menilai konten YouTube sebagai objek jaminan fidusia.
Analisis Pertanggungjawaban Hukum Pengurus Yayasan dalam Kasus Penyalahgunaan Dana: Studi Kasus Yayasan Aksi Cepat Tanggap
Authors: Khairunnisa Adriana , Suparji Suparji , Rifai Anis , Machmud Aris
Published: January 2025

Penelitian ini bertujuan untuk menganalisis tanggung jawab hukum pengurus yayasan dalam kasus penyalahgunaan dana yang melanggar prinsip tata kelola yang baik dan ketentuan peraturan perundang-undangan di Indonesia. Fokus penelitian adalah kasus dugaan pelanggaran pengelolaan dana hibah oleh Yayasan Aksi Cepat Tanggap (ACT). Penelitian ini menggunakan metode yuridis normatif dengan pendekatan peraturan perundang-undangan dan studi kasus untuk mengkaji penerapan hukum dalam konteks pengelolaan yayasan. Hasil penelitian mengungkapkan adanya pelanggaran serius, termasuk penyalahgunaan dana untuk kepentingan pribadi dan kelompok tertentu, serta kurangnya pengawasan terhadap organ yayasan. Berdasarkan teori tanggung jawab, pengurus yayasan dapat dimintai pertanggungjawaban secara individu atas pelanggaran tersebut. Penelitian ini memberikan kontribusi penting dalam penguatan mekanisme pengawasan dan akuntabilitas yayasan sebagai badan hukum.
Penerapan Asas Lex Specialis Derogat Legi Generali Dalam Tindak Pidana Perdagangan Orang Oleh Muncikari
Authors: Ritonga Fani Holidayani , Ekaputra Mohammad , Mulyadi Mahmud
Published: January 2025

Tindak pidana perdagangan orang merupakan salah satu bentuk kejahatan serius yang terus berkembang, termasuk yang melibatkan penyedia jasa Pekerja Seks Komersial (PSK). Penelitian ini bertujuan untuk menganalisis penerapan asas lex specialis derogat legi generali dalam kasus perdagangan orang yang melibatkan penyedia jasa PSK, dengan studi khusus pada Putusan Pengadilan Negeri Nomor 179/Pid.Sus/2023/PN Bil dan Nomor 255/Pid.Sus/2022/PN Mjk. Metode penelitian yang digunakan adalah yuridis normatif dengan pendekatan perundang-undangan dan studi kasus. Analisis dilakukan terhadap dua putusan pengadilan yang mendasarkan hukum pada ketentuan yang berbeda, yaitu Pasal 296 KUHP lama sebagai lex generalis dan Pasal 2 ayat (1) Undang-Undang Nomor 21 Tahun 2007 tentang Pemberantasan Tindak Pidana Perdagangan Orang sebagai lex specialis. Hasil penelitian menunjukkan bahwa asas lex specialis derogat legi generali memberikan landasan hukum untuk memilih ketentuan khusus yang lebih relevan dalam upaya penegakan hukum secara efektif. Hakim yang memutus perkara dengan dasar lex specialis dinilai lebih mampu memberikan keadilan dan menciptakan efek jera yang signifikan bagi pelaku. Penelitian ini menegaskan pentingnya penerapan asas hukum tersebut dalam membangun landasan hukum yang kuat untuk menangani kasus-kasus perdagangan orang secara efektif dan berkeadilan.
Hak Angket Dalam Penguatan Fungsi Pengawasan Dewan Perwakilan Rakyat Republik Indonesia
Authors: Said Abd. Razak , Ahmad Suparji
Published: January 2025

Penelitian ini menganalisis penggunaan hak angket DPR dalam pelaksanaan fungsi pengawasan pasca-penyempurnaan UUD 1945, dengan fokus pada regulasi hukumnya sebagaimana ditetapkan oleh DPR. Tujuan penelitian adalah untuk mengetahui urgensi hak angket dalam penguatan fungsi pengawasan DPR RI serta memahami politik hukum dalam pelaksanaannya. Penelitian ini menggunakan metode hukum doktrinal dengan pendekatan perundang-undangan dan pendekatan konsep. Data dianalisis dengan metode preskriptif-analitik. Hasil penelitian menunjukkan bahwa hak angket memiliki peran penting dalam sistem ketatanegaraan Indonesia, khususnya dalam mencegah potensi korupsi dan tindakan sewenang-wenang, sesuai dengan prinsip check and balances dalam negara hukum (rechtsstaat). Namun, pelaksanaan hak angket oleh DPR RI sering kali tidak memperhatikan prinsip dasar hak angket sebagai bagian dari fungsi pengawasan DPR. Akibatnya, penggunaan hak angket lebih menyerupai dinamika politik internal DPR yang kurang efektif dalam memantau kebijakan pemerintah. Pembentukan panitia angket cenderung menjadi bagian dari kepentingan politik internal DPR, sehingga tujuan akhir pengawasan kebijakan pemerintah tidak tercapai secara optimal. Oleh karena itu, implementasi hak angket perlu diperbaiki agar lebih efektif dalam mendukung fungsi pengawasan DPR RI sesuai dengan prinsip negara hukum.
Peran BUMN sebagai Pilar Utama Ekonomi Nasional yang Mandiri: Sebuah Kajian Hukum Korporasi
Authors: Firmansyah Amir , Machmud Aris , Suparji Suparji
Published: January 2025

Pemisahan tanggung jawab publik dan privat dalam pengelolaan Badan Usaha Milik Negara (BUMN) sering menimbulkan dilema operasional yang memengaruhi kinerja dan daya saing korporasi tersebut. Penelitian ini bertujuan mengkaji independensi BUMN dalam meningkatkan daya saingnya, dengan menekankan peran BUMN sebagai entitas hukum terpisah berdasarkan prinsip business judgment rule dan ketentuan hukum yang berlaku. Pendekatan yuridis normatif diterapkan melalui analisis terhadap regulasi utama, termasuk UU Perseroan Terbatas, UU BUMN, dan UU Keuangan Negara. Hasil penelitian mengungkap bahwa ambiguitas pengaturan hukum antara peran BUMN sebagai entitas publik dan privat menghambat efisiensi manajemen dan tata kelola. Selain itu, beban tanggung jawab sosial yang tidak diimbangi dukungan finansial memadai turut menjadi kendala utama. Meski demikian, penerapan tata kelola yang baik serta pengurangan intervensi negara dapat menjadi langkah strategis untuk mendorong kemandirian dan profesionalisme BUMN. Simpulan penelitian ini menegaskan perlunya reformasi regulasi untuk memisahkan keuangan BUMN dari anggaran negara, sehingga memungkinkan terciptanya korporasi yang kompetitif dan mandiri. Temuan ini memberikan kontribusi penting dalam memahami dinamika hukum dan ekonomi terkait peran strategis BUMN dalam pembangunan nasional.
Efektivitas Prosedur Kepailitan Badan Usaha Milik Negara (BUMN) dalam Putusan Pengadilan
Authors: Swandhani Triyana Kartika , Ahmad Suparji , Sadino Sadino
Published: January 2025

Penelitian ini bertujuan untuk menganalisis efektivitas prosedur kepailitan Badan Usaha Milik Negara (BUMN) dalam putusan pengadilan. Kepailitan BUMN merupakan permasalahan yang kompleks karena statusnya sebagai badan usaha milik negara sehingga berdampak pada perekonomian nasional dan pelayanan publik. Metode yang digunakan adalah yuridis normatif dengan pendekatan perundang-undangan dan kasus, dengan menggunakan data undang-undang kepailitan, putusan pengadilan, dan literatur hukum terkait. Hasil penelitian menunjukkan bahwa tata cara kepailitan BUMN mengikuti Undang-undang Nomor 37 Tahun 2004 tentang Kepailitan, namun penerapannya mempunyai kekhasan tertentu karena kepentingan negara. Putusan pengadilan menunjukkan bahwa hakim mempertimbangkan dampak kebangkrutan terhadap stabilitas perekonomian dan pelayanan publik. Prosedur kepailitan BUMN juga mempertimbangkan posisi negara sebagai pemegang saham mayoritas yang mempunyai hak khusus dalam prosesnya, termasuk penyelamatan atau restrukturisasi perusahaan. Kesimpulan dari penelitian ini menyatakan prosedur kepailitan BUMN di Indonesia memerlukan keseimbangan antara kepentingan negara, kreditur, dan pegawai. Pengadilan memainkan peran penting dalam memastikan proses tersebut mematuhi hukum dan mempertimbangkan dampak sosial-ekonomi. Kajian ini merekomendasikan peningkatan koordinasi antar instansi terkait dan peninjauan kembali peraturan untuk memastikan keadilan dan efisiensi dalam prosedur kepailitan BUMN.
Influence of Brand Image and Relationship Quality on Patient Satisfaction (Survey of Outpatients of Hermina Pasteur Hospital Bandung)
Authors: Ramadhan Aji , Febrian Feby , Mulyana Agus
Published: January 2025

Aji Ramadhan, 2023. The Influence of Brand Image and Relationship Quality on Patient Satisfaction (Survey on Outpatients of Hermina Pasteur Hospital Bandung), Thesis of the Winaya Mukti University Postgraduate Program, Master of Management Study Program. under the guidance of Dr. Nut Wuri Andayana, Apt., MMRS and Dr. Annisa Fitri Anggraeni, SE, MM, CISA.The development of the service industry sector, including health services, is inseparable from the demands of the community to continue to get quality health services. Various efforts have been made to improve health development that is better and more efficient and efficient, so that it can reach all levels of society. This study aims to determine and analyze the effect of brand image and relationship quality on the satisfaction of outpatients of Hermina Pasteur Bandung Hospital. The results of this study are expected to be input for Hermina Pasteur Hospital in organizing health services, especially in increasing satisfaction. The research method used is descriptive and verification analysis. The data collection used is an interview using a questionnaire accompanied by observation and literature techniques, sampling using consecutive sampling. Data collection in the field was carried out in 2023. Data analysis techniques using Path Analysis. The results showed that in general, brand image, relationship quality, and patient satisfaction tended to be quite good. There is an influence of brand image and relationship quality on patient satisfaction both simultaneously and partially at Hermina Pasteur Hospital. Hermina Pasteur Hospital must carry out service recovery for patient complaints or complaints quickly, so as not to cause dissatisfaction from patients, to handle patient complaints quickly the hospital can form a customer care program.
The Effect of Marketing Mix on Satisfaction and Its Implications on Visitor Loyalty (A Survey on Visitors in Alamendah Tourism Village, Rancabali District, Bandung Regency)
Authors: Holipudin Apid , Suryaman Suryaman , Febrian Feby
Published: January 2025

The purpose of this study is to find out and analyze: Marketing Mix on Satisfaction and its implications on Visitor Loyalty a visitor survey in Alamendah Tourism Village, Rancabali District, Bandung Regency, both simultaneously and partially.The research methods used in this study are descriptive and verifiative methods, the unit of analysis in this study is the visitors in Tourism Village A; Amendqah Rancabali District, Bandung Regency with a sample of 30 people. And the analysis methods used are quantitative analysis and path analysis. Based on the results of the study, it was found that the marketing mix on satisfaction and its implications on visitor loyalty visitor surveys in Alamendah Tourism Village, Bandung Regency in general can be said to be good, the marketing mix in Alamendah Tourism Village, Bandung Regency is currently considered good. The marketing mix simultaneously affects visitor satisfaction in Alamendah Tourism Village, Bandung Regency. However, partial visitor satisfaction predominantly affects customer loyalty.Because satisfaction predominantly affects visitor loyalty, being the first priority in improving the marketing mix in Alamendah Tourism Village, Bandung Regency is expected to consistently maintain existing conditions, thereby increasing the quality of comprehensive visits/tourists.
Liberalism as a Way of Life, de Alexandre Lefebvre
Authors: Loewe Daniel
Published: January 2025

Reseña de Daniel Loewe del libro Liberalism as a Way of Life, de Alexandre Lefebvre. Princeton, NJ: Princeton University Press, 2024.
Holography of Higher Codimension Submanifolds: Riemannian and Conformal
Authors:   Masaryk University, Czech Republic, Blitz Samuel , Silhan Josef ,   Masaryk University, Czech Republic
Published: January 2025

We provide a natural generalization to submanifolds of the holographic method used to extract higher-order local invariants of both Riemannian and conformal embeddings, some of which depend on a choice of parallelization of the normal bundle. Qualitatively new behavior is observed in the higher-codimension case, giving rise to new invariants that obstruct the order-by-order construction of unit defining maps. In the conformal setting, a novel invariant (that vanishes in codimension 1) is realized as the leading transverse-order term appearing in a holographically-constructed Willmore invariant. Using these same tools, we also investigate the formal solutions to extension problems off of an embedded submanifold.
The Galactic Disk North–South Asymmetry in Metallicity May Be a New Tracer for the Disk Warp
Authors: Sun Weixiang , Shen Han , Jiang Biwei , Liu Xiaowei
Published: January 2025

Galactic disk warp has been widely characterized by stellar distributions and stellar kinematics but has not been traced by stellar chemistry. Here, we use a sample with over 170,000 red clump (RC) stars selected from LAMOST and APOGEE first to establish a correlation between the north–south asymmetry in metallicity ([Fe/H]) and the disk warp. Our results indicate that the height of the [Fe/H] midplane for the whole RC sample stars is accurately described as Z

w
= 0.017 (R − 7.112)2 sin(ϕ − 9.218). This morphology aligns closely with the warp traced by Cepheids, suggesting that the disk north–south asymmetry in [Fe/H] may serve as a new tracer for the Galactic warp. Our detailed analysis of the young/thin disk stars of this RC sample suggests that its warp is well modeled as Z

w
= 0.016 (R − 6.507)2 sin(ϕ − 4.240), indicating that the line of node of the Galactic warp is oriented at 4.240

−
1.747

+
1.641

degrees.
The Use of Digital Social Media in Agriculture
Authors: Soulignac Vincent , Pinet Francois , Bodelet Mathilde , Gross Hélène
Published: January 2025

This article provides a literature review of 21 articles, published since 2015, which analyse the use of digital social media for agriculture. Our study identified the types of agriculture analysed, the technologies used, the countries concerned, and the themes discussed. This literature review offers an overview of the studies on the use of social media in agriculture, as well as the different actors who mobilize these tools. It gives the reader an idea of the different types of social media analysis that are being carried out in this field. We describe the approach we followed for our bibliographical research, and organize the articles into several main themes. We also draw a parallel with another study in the field of preventive medicine that we previously carried out.
Harnessing Intelligent RIS for Optimized Capacity and Latency in 6G Cooperative NOMA Systems
Authors: Hassan Mohamed , Hamid Khalid , Elshafie Hashim , Hassan Elmuntaser , Saeed Rashid A. , Alhumyani Hesham , Alenizi Abdullah
Published: January 2025

This article examines the performance of cooperative NOMA systems in a massive MIMO configuration inside the sixth-generation (6G) network, including scenarios with and without reconfigurable intelligent surfaces (RIS). The emphasis is on comprehending the effects of implementing static, dynamic, and intelligent RIS on the capacity of the cooperative NOMA system with differing user quantities. The study examines how different user loads and RIS densities affect average latency and effective area spectral efficiency (EASE). Integration of a proposal system in a novel way with water-filling in the multi-user channel logarithm to enhance capacity, average latency, and EASE for diverse user densities. The results show that RIS significantly improves capacity, average latency, and EASE, especially with intelligent RIS. All scenarios, in conjunction with the suggested algorithm, markedly improve network performance, particularly under conditions of increased user demand. Additionally, it enhances the system's capability and spectrum efficiency, especially when deployment numbers rise.
Evaluation of Whirl Flutter Prediction Methods for a System with Hardening or Softening Structural Nonlinearities
Authors: Riso Cristina
Published: January 2025

This paper evaluates selected output-based methods for whirl flutter prediction for a system with hardening or softening structural nonlinearities. It considers four conventional methods that estimate modal damping using linear assumptions: logarithmic decrement, exponential fit, matrix-pencil estimation, and moving-block analysis. Additionally, it examines bifurcation forecasting, an emerging fully nonlinear method. The investigation focuses on estimating the whirl flutter speed of a propeller–nacelle model using output data from transient simulations, considering various cubic stiffness laws, excitation amplitudes, and preflutter forward speeds. While all methods yield accurate results for weakly nonlinear behavior, only bifurcation forecasting maintains accuracy in the presence of strong nonlinearities. The findings highlight the limitations of conventional output-based methods used for whirl flutter prediction and emphasize the need for fully nonlinear approaches to support the design of vertical lift configurations impacted by this instability.
Seniors and Sustenance: A Scoping Review on Food Security in the Elderly
Authors: Tohit Nor Faiza Mohd. , Ya Roselawati Mat , Haque Mainul
Published: January 2025

The issue of food security amongst older people is a growing concern, as ageing populations face unique challenges that impact their access to adequate nutrition. This scoping review aims to explore and synthesise existing literature on food security in later life, identifying key factors contributing to food insecurity amongst seniors and highlighting interventions that can enhance food access. By employing a systematic approach based on Arksey and O’Malley’s framework, this study examines research from multiple databases, focussing on studies published in the past decade. The findings reveal a multifaceted problem influenced by socio-economic status, health limitations, social isolation and geographic barriers. Elderly individuals often encounter mobility issues that hinder their ability to procure food, while fixed incomes and rising costs exacerbate their access to nutritious options. In addition, the review identifies successful community-based programmes and policy initiatives that have shown promise in addressing these challenges, emphasising the importance of tailored interventions that consider the specific needs of older people. The analysis highlights significant gaps in the current literature, particularly in the areas of culturally sensitive programmes and the long-term effects of food insecurity on mental health. Furthermore, the role of technology in mitigating food insecurity presents a promising yet underexplored avenue for future research. The review underscores the critical need for comprehensive strategies integrating policy, community support and technological innovations to effectively combat food insecurity amongst seniors. By addressing these issues, stakeholders can improve the overall quality of life and health outcomes for the elderly population, ensuring their nutritional needs are met sustainably.
Interrupted Aortic Arch Complicated with Type A Aortic Dissection in a Young Adult
Authors: Dua Ashish , Sharma Arun , Kumar Rupesh , Singhal Manphool
Published: January 2025

Interrupted aortic arch (IAA) is a congenital anomaly characterized by a discontinuity between the ascending and descending aorta. We present a 27-year-old male patient who had presented with Stanford Type A aortic dissection and was subsequently found to have IAA on computed tomography aortogram. The patient subsequently underwent emergency surgery for the repair of aortic dissection. Although few studies with IAA and coexistent Stanford type-B aortic dissection have been described, there is no reported case in literature on IAA with Stanford Type A aortic dissection.
Oxidative Stress, Antioxidant Capacity, and Inflammatory Markers in Patients with Idiopathic Complete Heart Block
Authors: Shah Shobhit , Bhandari Monika , Vishwakarma Pravesh , Ali Wahid , Ahmad Mohammad Kaleem , Singh Abhishek , Shukla Ayush , Sharma Akhil Kumar , Chaudhary Gaurav , Pradhan Akshyaya , Chandra Sharad , Sethi Rishi , Dwivedi S. K.
Published: January 2025

Background:

The majority of cases of complete heart block (CHB) still have an idiopathic etiology, despite recent advancements in CHB management. This previously unexplored aspect of CHB is examined in our work. In this study, we sought to evaluate the etiological characteristics of patients with CHB.

Materials and Methods:

Sixty patients with CHB, ranging in age from 30 to 80 years, who were admitted as inpatients to the emergency room made up the study population. Catalase (CAT) activity, serum malondialdehyde (MDA), serum glutathione (GSH), and serum superoxide dismutase (SOD) activity were used to measure oxidative stress. Serum total antioxidant capacity levels (TAOC) were used to calculate antioxidant activity. Tumor necrosis factor-alpha (TNF-alpha) and serum interleukin-5 (IL-5) levels were used to gauge the degree of inflammation. These numbers were contrasted with those of 30 healthy individuals who had never smoked or had diabetes mellitus. Individuals with drug-induced CHB and acute myocardial infarction were not accepted.

Results:

Out of 60 patients, the gender distribution was 37 men and 23 women, with a mean age of 62.48 ± 7.98 years. Serum MDA (ng/ml) has a mean value of 1451.26 ± 206.32 in patients and 1197.98 ± 234.71 in controls (P ≤ 0.001). Serum GSH (ug/ml) has a mean value of 46.982 ± 18.613 in patients and 54.155 ± 10.762 in controls (P = 0.027). Serum CAT activity (unit/min/mg protein) has a mean value of 10.763 ± 4.038 in cases and 19.878 ± 7.787 in controls (P = 0.003). Serum SOD activity (unit/g) has a mean value of 24.950 ± 5.4565 in patients and 46.214 ± 14.6309 in controls (P = 0.891). The mean serum total antioxidant capacity (U/ml) for the patients was 5.546 ± 0.620, whereas the controls had a mean value of 8.346 ± 2.781 (P = 0.025). Total antioxidant capacity levels(TOAC) (P = 0.025), GSH (P = 0.027), CAT (P = 0.003), and SOD (P = 0.891) were considerably lower in patients during a CHB compared to the healthy control group, indicating that an increase in oxidative free radicals leads to endothelial dysfunction. High significant increases in MDA (P ≤ 0.001) were indicative of increased reactive oxygen species-mediated tissue damage. Serum IL-5 (pg/ml) has a mean value of 67.347 ± 20.445 (P < 0.001) in controls and 481.442 ± 28.8995 in patients. The patients’ mean serum TNF-alpha value (pg/ml) is 196.741 ± 73.771, whereas the controls’ mean value is 144.530 ± 42.599 (P = 0.081).

Conclusions:

Serum MDA and inflammatory markers were markedly elevated during a CHB. This is particularly the case with IL-5, which was significantly increased in patients with CHB. According to our research, some inflammatory markers, such as IL-5 and oxidative markers like MDA, may actively contribute to the development of heart block.
Concealed Truths Always Hide behind the Shadows of the Not So Obvious: Deadly Chest Pain Presentation
Authors: Sawalha Khalid , Lopez-Candales Angel
Published: January 2025

Acute aortic dissection (AAD) is a critical condition characterized by the tearing of the aortic wall, posing significant diagnostic challenges due to its diverse clinical presentations. We present the case of a 61-year-old male with hypertension and dyslipidemia who presented with acute abdominal and chest pain, initially raising suspicion of myocardial infarction. Despite an unremarkable electrocardiogram and initially normal troponin levels, the patient experienced ventricular fibrillation, prompting further evaluation. The patient’s clinical course was complicated by recurrent cardiac arrests. Subsequent imaging revealed AAD, which was not initially recognized, emphasizing the importance of maintaining a broad differential diagnosis and the critical need for prompt recognition and management of AAD. This case underscores the necessity of considering AAD in patients with atypical presentations and the pivotal role of advanced imaging techniques in facilitating timely diagnosis and appropriate intervention.