bluuebunny/crossref_metadata_2025 huggingface dataset:
Study of maser emission in 18 cm lines in the star formation region G 109.871+2.114 (Cep A)
Authors: Lekht E. E. , Ashimbaeva N. T. , Krasnov V. V. , Shoutenkov V. R.
Published: January 2025

The results of the study of the star formation region G 109.871+2.114 (Cep A) in OH lines by 18 cm are presented. Polarization observations (monitoring) were performed on a large radio telescope in Nançay (France) in 2007–2024. OH maser emission is highly variable. The structure of the spectrum and the flux density of the individual features are changing. However, the radial velocities of most features changed slightly. Short-term flares of emission ion from individual features were observed. Many features have strong circular polarization, reaching 100%, but weak linear polarization. A new features at –15.53 km/s and a short-term part at 1.58 km/s with high circular and low linear polarizations were detected in the 1667 MHz line. The spectral features of our monitoring were spatially identified with the maser spots on the Cohen, Argon and Fish maps. The magnitude of the monotonic decrease in splitting, and, consequently, the longitudinal magnetic field of three Zeeman pairs (–16.2L / –14.25R km/s and –6.94L / –0.82R in the 1665 MHz line and –15.76L / –14.2R in the 1667 MHz line). For the –13.95L / –11.60R pair no splitting change was detected in the 1665 MHz line. Broadband absorption and emission are observed in the satellite lines of 1612 and 1720 MHz, respectively. A Zeeman pair was also detected in the 1720 MHz line. The value of the positional angle χ is calculated for linearly polarized emission of most spectral details in both main lines of 1665 and 1667 MHz. It is shown that the magnetic field in the H II regions is oriented either along the external magnetic field or along the radio jets.
Spot and flare activity of single G5 III IV giant HD 199178 from TESS observations
Authors: Savanov I. S. , Tarasenkov A. N. , Dmitrienko E. S.
Published: January 2025

The aim of our work is to study the activity of the FK Com type star rapidly rotating G5 III IV giant HD 199178 (V1794 Cyg) on the base of available photometric data from TESS mission in five sectors. The light curves of the star characterized the variability caused by rotational modulation due to the presence of cool spots on the surface, power spectra and phase diagrams are studied. The dominant peak corresponds to the photometric period P = 3.28d ± 0.12d. It is suggested that the value of P decreases over time (over an interval of about 40 years) from 3.337d up to 3.28d may be due to the long-term evolution of the positions of the active areas (spots) on the surface of a differentially rotating star. The changes in the amplitude of the brightness variability and the shape of the phase curves of HD 199178 were analyzed and it was found that the fraction of the star’s surface occupied by spots varied from 7 to 12% of its surface area. The flare activity of the star has been studied. The parameters of the amplitude, duration and energy of the flares are determined for two of them. One of the considered flares is the strongest during the observations in five sectors (5.1 × 1035 erg) and in magnitude can characterize the upper limit of the flare energies in a given state of star activity. Maps of the surface temperature inhomogeneities of the star are constructed.
Synthesis of 1,3-bis(silyl/germyl)propanes by hydrosilylation of allylgermanes in the presence of Karstedt catalyst
Authors: Lakhtin V. G. , Efimenko D. A. , Shestakova A. K. , Sokolskaya I. B. , Kirilina N. I. , Storozhenko P. A.
Published: January 2025

The hydrosilylation reactions of allylgermanes R3GeAll (R = Cl, Me) in the presence of Karstedt catalyst with a number of phenyl- and thienyl-containing hydridosilanes were studied. It was found that the efficiency of the studied reactions is determined by a combination of several factors: the nature of the substituents at the germanium atoms in the initial olefins; the degree of hydridity of the hydrogen atoms in the initial hydridosilanes; the electronic and steric properties of the substituents at the silicon atoms of the hydridosilanes and their tendency to redistribution of deputies at silicon and germanium atoms. The synthesized compounds were identified using NMR 1H and 13C spectroscopy.
Nanofibers based on cellulose acetates
Authors: Sarymsakov A. A. , Shukurov A. I. , Ashurov N. Sh. , Yunusov Kh. E.
Published: January 2025

The properties of cellulose diacetate solutions in acetone and acetone–water mixtures at ratios of 95:5, 93.5:7.5 and 90:10 were studied. The optimal concentrations of cellulose diacetate solution for the formation of nanofibers from a mixture of water and acetone with a water content of 7.5 wt% were found. Cellulose diacetate nanofibers were obtained in the form of nonwoven materials with an average nanofiber diameter of 350±10 nm. In order to obtain cellulose nanofibers with a thread diameter of 350–400 nm, cellulose diacetate nanofibers were hydrolyzed in a 0.1 M potassium hydroxide solution.
New species and new records of oribatid mites (Acari, Oribatida) from Villa Clara, Cuba
Authors: Ermilov S. G. , Tolstikov A. V.
Published: January 2025

The present study is based on the oribatid mite material collected from the Villa Clara Province, Cuba. A list of 17 species, belonging to 11 genera and nine families, is presented; of them, one genus and three species are reported from Cuba for the first time. Two new species – Muliercula ornamenta Ermilov sp. n. (Scheloribatidae) and Galumna (Galumna) villaclaraensis Ermilov sp. n. (Galumnidae) – are described from soil litter with decaying leaves.
Ultracold neutron source based on superfluid helium for the PIK Reactor
Authors: Lyamkin V. A. , Serebrov A. P. , Koptyuhov A. O. , Ivanov S. N. , Kolomenskiy E. A. , Vasilev A. V.
Published: January 2025

A high density ultracold neutron source based on superfluid helium is going to be created in NRC “Kurchatov Institute” — PNPI for scientific research in fundamental physics. The ultracold neutron source is to be installed on the Horizontal Experimental Channel 4 (HEC-4), which is the biggest of available experimental channels of PIK Reactor Complex. Thermal neutron flux density at the channel outlet is expected to be around 3 ×1010 cm–2s–1. The new ultracold neutron source at the PIK Reactor is planned to achieve a density of 2.2 ×103 cm–3 at ultracold neutron neutron guide exit and 200 cm–3 at neutron electric dipole moment spectrometer facility. The designed ultracold neutron guide system is going to support five experimental facilities alternately. At the initial stage the ultracold neutron source is planned to be equipped with already existing PNPI experimental plants: a neutron electric dipole moment spectrometer and neutron lifetime measuring facilities (with a gravitational and magnetic trap). A unique technological cryogenic complex with superfluid helium was designed and realized for this ultracold neutron source. Said complex includes equipment for achieving temperatures down to 1 K and removal of up to 60 W of heat from superfluid helium.
Experimental and numerical study of damage caused by high-current electron beam of construction materials intended for the first wall of powerful plasma installations
Authors: Bobyr N. P. , Kazakov E. D. , Orlov M. Yu. , Smirnova A. R. , Spitsyn A. V. , Strizhakov M. G. , Sunchugashev K. A. , Tkachenko S. I.
Published: January 2025

An experimental study of the effect of high-current electron beams on crystals made of polycrystalline tungsten and corrosion-resistant ferritic-martensitic steel EK-181 was carried out, as well as a numerical simulation of the process of interaction of the beam with the target, in which the energy of the electron beam is absorbed in the near-surface layers of the samples under study. The experiments are carried out on the Kalmar high-current electron accelerator at an average pulse energy of E ≈ 100 ± 20 J (pulse duration at half maximum 100 ns). During the experiments, samples were irradiated from one to ten times. In the numerical modeling, electron spectra were used, calculated on the basis of data (currents and voltages in the diode gap) obtained as a result of electrical measurements. The difference in the nature of destruction of tungsten and steel was demonstrated. It has been shown that tungsten begins to crack after three-pulse exposure with an energy of about 100 J, which correlates well with tests on other types of installations. On steel, minor cracking was observed only after 8–10 pulses of exposure. Numerous traces of droplets of melting and redeposition of the target material were found on the surface of the steel target. For both materials, the specific amount of energy that is absorbed in the region of interaction of the electron beam with the target is estimated.
Features of the formation of layers on the surface of valve metals in the process of ion beam assisted deposition of metals from vacuum arc discharge plasma
Authors: Poplavsky V. V. , Babrovich A. G. , Dorozhko A. V. , Matys V. G.
Published: January 2025

Layers on the surface of aluminum, aluminum alloy, titanium and tantalum was formed by ion beam assisted deposition of metals. Formation of layers in ion beam assisted deposition mode, by means of the deposition of metal and mixing of precipitating layer with the substrate by accelerated (U = 20 kV) ions of the same metal from metal vapor and ionized plasma of vacuum (~10– 2 Pa) pulsed electric arc discharge, was carried out. Multicomponent amorphous layers containing atoms of the deposited metal, components of the substrate material, including oxygen of the surface oxide film, as well as hydrocarbon molecules as impurities were obtained. It is established that during ion beam assisted deposition of metals with getter properties (Zr, Cr, Er, Dy, etc.) on the surface of the studied materials, significant amounts of gases are captured from the residual atmosphere of the vacuum working chamber and are included in the composition of the formed layer. At the same time, the content of atoms of the substrate material in the layer is small. With ion beam assisted deposition of metals that do not exhibit getter properties, the content of impurities in the resulting layers is significantly less, their composition contains atoms of the deposited metal and the substrate material.
On anomalous diffusion of fast electrons through the silicon crystal
Authors: Syshchenko V. V. , Tarnovsky A. I. , Dronik V. I.
Published: January 2025

Anomalous diffusion is a random process in which the root-mean-square displacement of a particle from the starting point depends nonlinearly on time. The possibility of such behavior for high energy particles moving through the crystal under conditions close to axial channeling was found earlier. In this case, the rapid displacement of particles in a plane transverse to atomic strings (Lévi flights) is due to the temporary capture of the particles in planar channels. In this work, by means of numerical simulation, the anomalous diffusion exponent was found for different values of the energy of electron transverse motion in the (100) plane of a silicon crystal. It has been established that in the case of electrons with an energy exceeding by 1 eV the height of the saddle point of the potential of a system of atomic chains [100], the results are consistent with those obtained earlier. It has been confirmed that the anomalous nature of diffusion is due to the possibility of short-term capture of particles in planar channels. With increasing transverse energy, this possibility disappears, and diffusion becomes normal (Brownian).
A Case Study of Abdominal Wall Desmoid Tumor in a 33-Year-Old Woman
Authors:   Department of Urology, Samarkand State Medical University, 18 Amir Temur St, Samarkand, Uzbekistan, Oybek Davronov , Park Gippeum ,   Department of Internal Medicine, Samarkand State Medical University, 18 Amir Temur St, Samarkand, Uzbekistan, Erkinovich Uralboev Ikromjon ,   Department of Orthopedic-Thoracic, Children multibranch medical center of Samarkand, Uzebekistan, Lee Hwunjae ,   YUHS-KRIBB Medical Convergence Research Institute, Yonsei University College of Medicine, Seoul 03722, Republic of Korea
Published: January 2025

Desmoid tumors, also known as aggressive
fibromatosis, are rare, benign soft tissue neoplasms
characterized by locally invasive growth. These tumors
originate from fibroblasts and commonly occur in the
abdominal wall, particularly in females of reproductive age.
Although desmoid tumors are non-metastatic, they can
infiltrate surrounding tissues, leading to significant
morbidity and a high recurrence rate following incomplete
surgical excision. The exact etiology of desmoid tumors
remains unclear; however, genetic mutations, hormonal
influences, and trauma are considered contributing factors.
In this case study, we present the clinical features, imaging
characteristics, diagnosis, and treatment of a desmoid
tumor in the abdominal wall of a 35-year-old woman.
surgical excision. The exact etiology of desmoid tumors
remains unclear; however, genetic mutations, hormonal
influences, and trauma are considered contributing factors.
In this case study, we present the clinical features, imaging
characteristics, diagnosis, and treatment of a desmoid
tumor in the abdominal wall of a 35-year-old woman.
Personal Data Protection Issues in the Era of Artificial Intelligence
Authors:   Information Security Management Team, National Research Foundation of Korea, Lee Giljae
Published: January 2025

This paper discusses the challenges
associated with personal data protection in the era of
artificial intelligence (AI). While AI technologies
enable personalized services by collecting and
analyzing large amounts of data, concerns regarding
privacy and data protection are growing. The
methods AI systems use to process data are often
opaque, which poses a potential risk to individual
rights and freedoms. Therefore, exploring data
protection measures suitable for the AI era is crucial.
Personal data protection is essential to comply with
legal requirements and maintain individual privacy
and trust. In the digital era, personal data is used in
various ways, leading to issues such as data breaches,
misuse, and discriminatory algorithms. These
problems can erode trust and negatively affect
innovation and economic growth. Strengthening
personal data protection has thus become a socially
important task. As AI technologies advance, existing
data protection laws are proving insufficient to
address new challenges. Regulations such as the
European General Data Protection Regulation
(GDPR) and the California Consumer Privacy Act
(CCPA) have been enacted to strengthen personal
data protection, but they face limitations in keeping
up with the complexities of AI technology. The
complexity of AI algorithms makes it difficult to
ensure transparency in data collection and processing,
hindering trust in the use of personal data.To address these issues, companies must establish
clear data protection policies, policymakers to
develop flexible regulations, and engineers to adopt
principles that consider personal data protection in
system design. These efforts will help reinforce
personal data protection and enhance the reliability
of AI systems. In conclusion, a trust-based data protection framework is necessary for AI technologies to
respect privacy and have a positive societal impact.
Companies and governments must cooperate to
strengthen data protection and build societal trust.
Implementation of Fast Track Method to Accelerate Construction Project Scheduling
Authors: Muin Suriati Abd. , Watono  , Alimuddin Evi Gusmiarni , Ridwan Siti Huriyah Shatara
Published: January 2025

In a project, the planning stage is the key to success because it determines the allocation, funding, time and quality to be achieved. In order for work efficiency and effectiveness to be fulfilled properly, the implementation of the project is influenced by planning and scheduling factors. Construction project control is a systematic activity or effort to determine standards that are in accordance with the planning objectives, compare implementation with planning, and make necessary corrections so that costs, resources, and time can be used effectively and efficiently in order to achieve the desired construction project goals. If there is an imbalance between the plan and the realization of the work, then the project may experience delays like what happened to the Lantamal VI Makassar Naval Pier project. The project experienced several delays in work and required rescheduling, so a special method was needed that could speed up the project implementation time. The purpose of this study is to accelerate the duration of work and get project costs after implementing the fast track method. The results of implementing the fast track method can reduce the time by 64 days or experience a time acceleration of 20.9% from the initial duration of 306 days, the total project cost before the acceleration is Rp.  50.365.788.654,89 After acceleration with the fast track method which affects the overhead cost to Rp. 49,312,386,539, the total cost reduced is Rp. 1,053,402,116 or a savings of 2.09% of the total cost.
INVESTIGATION OF NANOHARDNESS AND MICROSTRUCTURE
OF BIMETAL “UNALLOYED TITANIUM – TITANIUM ALLOY Ti6Al4V”
PRODUCED BY SELECTIVE LASER MELTING
Authors: Gryaznov M.Yu. , Shotin S.V. , Semenycheva A.V. , Chuvildeev V.N. , Piskunov A.V.
Published: January 2025

One of the priority directions of using additive technologies is the producing of personalized products for medicine. To solve the problem of ensuring biocompatible and high physical and mechanical characteristics, bimetallic samples based on Ti6Al4V titanium alloy and unalloyed titanium were obtained. An investigation of the structure of the zone of two materials connection using various modes of selective laser melting (SLM) by scanning electron microscopy has been carried out. It is shown that in optimal SLM modes, the joining zone of two materials does not contain defects. The distribution of aluminum concentration in bimetal along the line of the orthogonal boundary of two components was studied using methods of energy dispersive microanalysis of scanning electron microscopy and nanoindentation. It is shown that the change in the concentration of Al depending on the distance to the boundary of the joining has a two-stage character: the stages of slow and rapid changes in the concentration of Al are distinguished. The value of nanohardness in the transition zone decreases monotonously. It is shown that the width of the joining zone of the two materials significantly depends on the process parameters of technology. The SLM makes it possible to obtain a defect-free bimetallic material, a characteristic feature of which is the presence of a bioinert outer layer of unalloyed titanium and a high-strength inner part of Ti6Al4V titanium alloy. At the same time, the design of bimetallic implants should have an outer layer of unalloyed titanium with a thickness of at least 700 microns.
ON THE RELATIONSHIP OF THE SPEED OF SHEAR WAVES
AND RAYLEIGH SURFACE WAVES FOR MATERIALS DESCRIBED
BY THE EQUATIONS OF GENERALIZED CONTINUUM MECHANICS
Authors: Antonov A.M.
Published: January 2025

The question of how two known models of generalized continua describe a Rayleigh surface wave propagating along a stress-free surface of an elastic half-space is studied. The models of a gradient-elastic medium and a simplified (reduced) Cosserat medium are selected as the tested ones. Dispersion equations are obtained. The analysis of which showed that both models state that the dispersion properties of a Rayleigh surface wave in the wave number– frequency plane are described by two curves, one of which (the lower one) comes from the origin of coordinates, the origin of the second is shifted upward along the frequency axis.
The surface wave is two-mode and each of its modes has dispersion, since the velocities of both modes depend on the frequency. Both models also state that the bulk shear wave has dispersion. For a gradient-elastic medium, as the frequency increases, the velocity of each mode of the surface wave increases, and if the velocity of the lower mode reaches a horizontal asymptote from below, then the velocity of the upper mode first reaches a maximum and only then reaches this horizontal asymptote from above. For any non-zero value of the wave number (or frequency), the phase velocity of the shear wave is greater than the velocity of the shear wave in a classical medium. The velocity of the surface wave cannot be greater than the phase velocity of the shear wave, and their equality is fulfilled only in a certain frequency range. In a reduced Cosserat medium, the velocity of the upper mode of the surface wave is improbably high, at high frequencies it increases indefinitely. The velocity of the lower mode of the surface wave decreases with increasing frequency, but in the entire frequency range it remains greater than the phase velocity of the shear wave.
Principles of creating audio description
Authors: Alshinbayeva Zh.K. , Ospanova Zh.Z. , Zholdabayeva A.S.
Published: January 2025

According to the 2014 World Health Organization report “Visual Impairments and Blindness”, about 285 million people worldwide currently suffer from visual impairments, of which 39 million are affected by blindness and 246 million have reduced vision. About 90% of people with visual impairments live in low-income countries. 82% of blind people are in the age group of 50 years and older. At the same time, 80% of all cases of visual impairment can be prevented or cured. There are no exact statistics, since the population census indicates disability and degree, without specifying it. The All-Russian Society for the Blind has 270 thousand members. In total, according to estimates of those who deal with this problem, there are about a million blind people. Most of them, according to the statistics are capable people. The relevance of this topic is due to the lack of awareness of the population about the existence of audio descriptions, the insufficient number of works aimed at eliminating illiteracy in the creation of high-quality audio descriptions. In addition, there is a lack of research devoted to creating a single logical and optimal classification of the main difficulties, which will explain and prevent the causes of their occurrence. In this paper, we consider the main difficulties faced by an audio descriptor may occur when creating an audio description, and possible ways to overcome them are analyzed. These statistics indicate that the need to create an audio description is currently an extremely relevant topic.
Орта ғасырдағы азия ғалымдарының қолданбалы геометрия саласы терминдерінің дамуына қосқан үлесі
Authors: Кемельбекова Э.А. , Сыздыкова Г.О.
Published: January 2025

Кез келген ғылымның даму тарихымен танысу оны зерттейтін барлық мамандар үшін маңызды танымдық және тәрбиелік мәнге ие. Қолданбалы (сызба) геометрияның ғылым ретінде пайда болуы мен даму тарихына назар аудара отырып оның қалыптасу негіздеріне жүгіну керек. Қолданбалы геометрия терминдерінің ғылыми жетістіктерінің қарқынды дамуы өткен ғасырлардағы ғылыми зерттеулер мен жаңалықтардың нәтижесі болып табылады. Қолданбалы геометрия саласындағы терминдердің пайда болуы өткендегі егжей-тегжейлі зерттеулерге негізделеді. Бұндай терминдер туралы тарихи мәліметтер көбінесе еуропалық ғалымдардың еңбектерін сипаттаумен шектеліп келді. Кейде Шығыс ғалымдарының көптеген еңгізген терминдері Батыс ғалымдарына әділетсіз жатқызылады немесе кездейсоқ айтылады.
Бұл мақала әл-Фараби, Мұхаммед әл-Хорезми, Омар Хайям, Әбу-р-Райхан әл-Бируни және Орта Азияның басқа да ғалымдарының геометриялық терминдері мұраларының елеулі үлестерін шолуға арналған. Сондай-ақ, белгілі ойшылдар мен ғалымдардың еңбектерінде қолданылған геометриялық терминдердің мән-мағынасын анықтауға бағытталған. Авторлар бұл зерттеуде сызба геометрия ғылымының пайда болуын Гаспар Монждың «Сызба геометрия» кітабына дейін ортағасырлық ғалымдардың еңбектеріндегі жаңадан енгізген терминдерді барынша толық көрсетуді мақсат етіп қойды. Сонымен қатар мақалада қолданбалы (сызба) геометрия терминдерінің қазіргі уақыттағы орны көрсетілген. Қолданбалы (сызба) геометрияның ғылым ретінде пайда болу тарихы қарастырылды. Одан басқа ұлы ойшылдардың берген негізгі геометриялық терминдердің анықтамалары ерекшеленген.
Қазақ-ағылшын тілдеріндегі сөйлеу этикетінің этно-лингвомәдени ерекшеліктері
Authors: Абдыгалиева Н.Н. , Смағұлова Г.Н. , Иргатоглу А.
Published: January 2025

Мақала қазақ және ағылшын тілдеріндегі сөйлеу этикетінің лингвомәдени ерекшеліктерін анықтауға арналған. Сөйлеу этикетін – сөйлеу актісінде, қажет болған жағдайда коммуникацияда қолданылатын стереотиптік тіл формулалары құрайды. Зерттеудің мақсаты – қазақ және ағылшын тілдеріндегі сөйлеу этикеті формулаларының этно-лингвомәдени ерекшеліктерін анықтау. Аталмыш мақсатты жүзеге асыру үшін қазақ және ағылшын тілдеріндегі этикеттік бірліктер, яғни сәлемдесу, қоштасу, амандасу, көңіл айту, құттықтау мен тілек, өтініш білдіру үлгілері қолданылу сипатына, этно-лингвомәдениеттанымдық сипатына сай іріктеп алынып, салыстырмалы түрде талданды. Зерттеу барысында қолданылған ұтымды әдіс-тәсілдер негізінде қазақ тіліндегі сәлемдесу мен амандасу үлгілерінің этникалық таным-түсінікке негізделгені дәлелденді. Сондай-ақ қазақтың сәлемдесуінде бір ғана диалогтық репликаның бірнеше сөйлемдерден құралатыны айқындалды. Бұл ұлттық этноментальді ерекшелікті көрсетеді. Ағылшын этикетіндегі сәлемдесу үлгісі ұлттың этномәдени ерекшелігіне сәйкес қысқа, ықшамдалған, әрі сұраулы сөйлемдер жиі ұшырасады. Екі тілдің сөйлеу этикетінде қоштасу үлгілері жиі қолданылатыны және олардың орны тұрақты әрі түрлері көп екені анықталды. Ағылшын этикетіндегі қоштасу үлгілерінің тақырыптық тобы анықталып, жүйеленді. Құттықтау мен өтініш айту үлгілеріндегі ерекшеліктер талданып, ағылшын этикетіндегі сыпайылық деңгейінің түрлері нақты мысалдар негізінде талданды. Зерттеудің теориялық маңызы - зерттеу салыстырмалы лингвомәдениеттанудың, мәдениетаралық коммуникация теориясының және лингвопрагматиканың дамуына, «мінез-құлықтың этикеттік моделі» ұғымын нақтылау мен сипаттауға ықпал етеді.
The Sunni-Shia antagonism
Authors: Chukov Vladimir S.
Published: January 2025

This study presents the doctrinal and dogmatic differences related to Sunni-Shia antagonism. The Sunni-Shia dispute is a historical religious dispute between the two largest Islamic denominations. To a very large extent, it is based on the understanding of the concept of “sect” used for centuries by Sunni theologians of the Shiite school of dogma. It was not until the 1960s that orthodox Islam was forced to recognize the existence of a minority with which it had doctrinal and legal differences. Jafarism was the first Islamic movement that the dominant Sunni theologians recognized as part of the Islamic religion. This is after accepting the existence of Iran as a real statist establishment and a functioning legal system as a fait accompli. The restoration of diplomatic relations between two of the symbols of Sunnism and Shiism, namely Saudi Arabia and Iran, after a seven-year break, is proof that Islam in the current 21st century is different from that of the Middle Ages.
The effect of the Israeli Basic Law on human dignity and freedom on the use of incriminating evidence in Israeli courts
Authors: Pilyavsky Michael
Published: January 2025

Is there a place for a distinction between immunity from self-incrimination based on oral answers to questions asked by a person, and immunity from self-incrimination related to the delivery of documents held in a person's hand? Value considerations should be preferred over the assessment of the truth and its discovery, provided that these considerations are expressly fixed in the law, according to th provision of the Basic Law on Human Dignity and Freedom if a person's body is searched.
Geochemical and Mineralogical Characteristics of Deep Porphyry Systems: Implications for Exploration Using ASTER
Authors: Michael Owenvbiugie Eguagie  , Idoko Peter Idoko  , Onuh Matthew Ijiga  , Lawrence Anebi Enyejo  , Francisca Chinonye Okafor  , Chinelo Nwaamaka Onwusi
Published: January 2025

Porphyry systems are critical sources of economically valuable metals, making their identification and exploration a key focus in mineral resource studies. Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) data have emerged as a powerful tool for mapping the geochemical and mineralogical characteristics of these systems, enabling more precise exploration efforts. This review examines the geochemical and mineralogical indicators of deep porphyry systems and evaluates the effectiveness of ASTER in their exploration. It begins by exploring the geological framework and alteration zones typical of porphyry deposits, emphasizing the unique advantages of ASTER in remote sensing applications. The methodology focuses on evaluating case studies where ASTER data were utilized to map alteration minerals and detect geochemical anomalies, alongside techniques for data processing and ground-truth validation. Results reveal that ASTER effectively identifies critical alteration zones and mineralogical features, though challenges remain in distinguishing overlapping mineral signatures in complex terrains. Recommendations include integrating ASTER with complementary geophysical and geochemical methods and advancing data processing techniques to enhance exploration accuracy. This study highlights ASTER’s significant potential in driving efficient and sustainable exploration of deep porphyry systems.
Interactive Content: Engaging Audiences in a Distracted World
Authors: Susanti Erna , Apriyanti Nike , Harisriwijayanti Harisriwijayanti
Published: January 2025

This study investigates the dynamics of audience engagement on the Shopee platform, focusing on Interactivity Level, Content Quality, User Attention, and Audience Engagement. Using a quantitative approach with a sample of 100 users and employing Structural Equation Modeling (SEM) with Smart PLS, the research examines direct and indirect relationships among these variables. The findings reveal significant direct effects of Interactivity Level and Content Quality on Audience Engagement, highlighting the importance of interactive features and high-quality content in driving engagement. Additionally, User Attention emerges as a critical mediator, enhancing the impact of Interactivity Level and Content Quality on Audience Engagement. Specifically, higher Interactivity Level and superior Content Quality increase User Attention, leading to heightened Audience Engagement. These insights underscore the strategic significance of optimizing interactive elements and content quality to capture and sustain user attention effectively in competitive e-commerce environments. The study contributes valuable implications for enhancing digital marketing strategies and improving user experience on platforms like Shopee, aiming to foster greater user satisfaction, loyalty, and business success.
Telaah Manajemen Utang Luar Negeri Indonesia Dan Rekomendasi Kebijakan Dalam Perspektif Ekonomi Syariah
Authors: Purwanti Neli , Dewi Anggini Megah
Published: January 2025

This research examines Indonesia's foreign debt management from a sharia economic perspective, with the aim of providing policy recommendations that are in accordance with sharia principles. Foreign debt is an important instrument in financing development, but high levels of debt can give rise to various economic risks. Descriptive analysis is used to describe the current condition of Indonesia's foreign debt, including the amount, type and structure of debt. Meanwhile, qualitative analysis is used to evaluate existing debt management policies and their conformity with sharia economic principles and policy recommendations from a sharia economic perspective. The research results show that Indonesia's foreign debt continues to increase, with the composition dominated by long-term debt from various sources. From a sharia economic perspective, several current debt management policies are not fully in accordance with sharia principles, especially those related to the use of debt instruments that contain elements of usury. This research recommends several policy steps, including: increasing transparency and accountability in debt management, developing financing instruments that comply with sharia principles such as sukuk and waqf, and diversifying financing sources to reduce dependence on conventional foreign debt.
Sebuah Tinjauan Literature Review: Intention To Leave
Authors: Hernita Nita , Merry Marianti Maria , Deti Regina
Published: January 2025

Theoretical research on intention to leave (ITL) is an attempt to understand the elements that influence individuals' willingness to leave the organization where they work. In this context, theories such as Theory of organizational behavior, Theory of planned behavior, Theory of work life balance (WLB), Theory of Sustainable Business Practice (TSPB), Self Determination Theory (SDT), Human Resource Management (HRM), social exchange theory (SET) are often used as frameworks to explain this phenomenon. In this study, an in-depth analysis was conducted of the various factors that can influence intention to leave (ITL), data collection methods and theories underlying ITL were clearly discussed using the PRISMA method by collecting data through google scholar, researchgate and publish or perish, 220 articles were excluded and included. Data synthesis of 49 articles. The results of this study can provide valuable insights for human resource managers and practitioners in developing strategies to minimize ITL in the workplace. In addition, this theoretical study can also serve as a foundation for future empirical research to examine the relationship between these factors in a more specific context.
Pengaruh Flash Sale dan Live Streaming Terhadap Impulse Buying Behavior Pada Platform TikTok
Authors: Ratna Gumilang Risa , Sumiati Ai , Tresnadi Aris
Published: January 2025

The development of technology and the internet has transformed societal lifestyles, with TikTok leveraging this trend through TikTok Shop, integrating entertainment and shopping with features like flash sales and live streaming to drive sales and influence consumer behavior. This study aims to examine the impact of flash sales and live streaming on impulse buying behavior on the TikTok platform. Using a quantitative approach with a survey of 400 respondents from Generation Z (aged 18-27) who have purchased through flash sales and live streaming on TikTok. Data analysis employed multiple linear regression. The findings indicate that both flash sales and live streaming significantly and positively influence impulse buying behavior. These strategies collectively form a robust approach to stimulate impulse buying: flash sales create purchase urgency, while live streaming enhances direct consumer engagement. This research offers valuable insights for TikTok sellers in optimizing flash sales and live streaming to enhance sales through impulse buying behavior.
Peran Koperasi Universiti Kebangsaan Berhad Malaysia dalam Mendorong Kesejahteraan Ekonomi Anggota
Authors: Marlina Serly , Agustina Tri , Rahmat Rasyid , Purbo Suseno Gijanto
Published: January 2025

Cooperatives are business entities that play a crucial role in developing the economic potential and capabilities of their members, with the goal of improving their welfare. The Universiti Kebangsaan (UNIKEB Berhad) Cooperative in Malaysia is one such multi-purpose cooperative that has successfully fulfilled its role despite facing various business challenges. This cooperative, which primarily comprises academic staff and students, has been operating for over five decades and manages business units that include real estate (property leasing), retail, financing, gas station management, and Ar-Rahnu (pawn services). This research aims to analyze the role and performance of UNIKEB Berhad Cooperative in promoting the economic sustainability of its members. The research employs a qualitative approach, utilizing secondary data from UNIKEB Berhad as well as interviews and discussions with the management, supervisors, and members of the cooperative. The findings indicate that UNIKEB Berhad Cooperative has successfully acted as a platform to promote the economic welfare of its members, reflected in its operational growth and stability over more than five decades. The cooperative has also managed to analyze the business challenges it faces, including declining member participation, liquidity constraints, dependence on external funding, and decreasing dividends or profit-sharing. Based on this analysis, UNIKEB Berhad Cooperative has effectively evaluated and designed three strategies to promote the long-term economic sustainability of its members, focusing on funding structure, governance, and member commitment. These findings provide important implications for cooperatives facing similar business challenges in formulating appropriate strategies.
Analisis Strategi Perluasan Usaha Koperasi Kakitangan Petronas Berhad Malaysia
Authors: Oktaviani Christina , Indra Praja Gunawan , Raudah Warda , Gunadi Trida
Published: January 2025

Business development of the Koperasi Kakitangan Petronas (Kopetro) requires a careful business strategy to face market changes and dynamic member needs. Cooperatives not only act as providers of financial services, but also as economic platforms for their members to obtain wider benefits through various business opportunities. Therefore, this research aims to analyze how Kopetro implements business expansion strategies and strengthens its position in Malaysian industrial cooperatives. The research method used is descriptive qualitative with a field study approach based on primary data obtained through visits, interviews and other internal document reviews. Based on the analysis, Kopetro has succeeded in expanding the business sector through business diversification, sharia-based financial services, and strengthening information technology, maintaining achievements and recognition as well as managing human resources. This strategy allows Kopetro to adapt to market changes and remain competitive. Kopetro has succeeded in expanding its business to cover various sectors such as trade and retail, tourism and recreation services, catering, property and sharia-based services. However, there are several challenges that can be motivation for Kopetro, such as consolidation of business management, continuous improvement in service quality and international business expansion.
Effect of the Application Timing of VIUSID Agro® on the Growth of Coffea arabica L. Seedlings
Authors: Bustamante González Carlos Alberto , Vázquez-Osorio Yudmila , Álvarez-Morales Roxana
Published: January 2025

Objective: VIUSDI Agro® is a biostimulant that contains amino acids, vitamins and minerals. In Cuba, itsbeneficial effects have been primarily demonstrated in vegetables, sugarcane and tobacco. However, there islimited information regarding its use in coffee. Therefore, this study was conducted to evaluate the effect ofapplication timing on the growth of coffee seedlings.Design/methodology/approach: The experiments were conducted at nursery of the Agro-Forest ResearchInstitute in Tercer Frente, from December 2019 to July 2020 and from October 2020 to June 2021, undersaran mesh shade. Using a completely randomized design, four treatments were evaluated: without VIUSIDAgro® (Control); monthly applications from the second to the fifth leaf pairs; application on the second, fourthand sixth leaf pairs; and applications on the third and fifth leaf pairs. Height, stem diameter, dry mass, leafarea, seedlings quality index, as well as agronomic efficiency were assessed. Data were analyzed using a onewayanalysis of variance, and Tukey test was applied to compare the means.Results: The coffee seedlings responded positively and significantly to the biostimulant. The applicationsenhanced the morphological variables and improved the application efficiency.Findings/conclusions: Foliar applications of VIUSID Agro® on the third and fifth pair of leaves were themost efficient, reducing the production costs of coffee plants.
WATER RESOURCES MANAGEMENT IN RURAL COMMUNITIES OF NORTHERN PUEBLA
Authors: Juárez-Lucas Plácido , Bustamante-González Ángel
Published: January 2025

Objective: To identify the organizational forms that communities use to manage water, establishing the dialogical factors that communities build to strengthen their water-based ties. Methodology: The study was conducted in eight communities of the Sierra Norte of Puebla. An action research approach was used to study community water management in eight auxiliary boards of the municipality of Ixtacamaxtitlán, state of Puebla. Results: Seven water sources were identified, including one intercommunity source. The 8 auxiliary boards are built around these sources and they are organized to manage the home and irrigation water supply as a community. Differences in organization were identified depending on the land ownership type of the water source location, water fees, number of users, and years of management of the source. Study Limitations/Implications: The mining conflicts in the study region limited field work. Conclusions: Users have more access to water sources in ejidos than in small private properties. In the first case, water is considered a collective resource, while in the second case, water is a private resource.
Antibacterial potential of celery (Apium graveolens L.) extract gel against Staphylococcus aureus
Authors: Sunarno Martinus Ezra , Amat Anita Lidesna Shinta , Telussa Arley Sadra , Prisca Deviani Pakan
Published: January 2025

Background: Staphylococcus aureus can cause furuncles or boils, painful nodules on the skin. Conventional topical therapies often lead to side effects such as contact dermatitis and pruritus, compounded by the increasing problem of antibiotic resistance. Natural ingredients like celery (Apium graveolens L.) offer promising alternatives due to their antibacterial properties and gentler effects.
Objective: This study aimed to formulate a celery extract gel with ideal physical characteristics and evaluate its antibacterial potency against Staphylococcus aureus.
Methods: Celery extract gel was prepared using HPMC, celery extract, methylparaben, propylparaben, and propylene glycol. Formulations with various celery extract concentrations were tested alongside mupirocin ointment (positive control) and gel base (negative control) against Staphylococcus aureus using the well-diffusion method. The results were analyzed using the One-Way ANOVA statistical test.
Results: Celery extract gel demonstrated strong antibacterial potency at 25% (F1), 50% (F2), and 75% (F3) concentrations and very strong potency at 100% (F4). The One-Way ANOVA analysis showed a significant difference in the mean inhibitory zone diameter between treatment groups (p < 0.05).
Conclusion: Celery extract gel exhibits significant antibacterial activity against Staphylococcus aureus, suggesting its potential as a natural alternative for topical therapy in managing skin infections.
EXAMINING THE IMPACT OF SOCIAL SECURITY PROGRAMS ON MILITARY PERSONNEL AND VETERANS
Authors: Md Radzi Elias
Published: January 2025

This study examines the role of social security programs in ensuring the well-being and economic stability of military personnel and veterans through a scientometric and scoping review approach. Using data from Scopus and Web of Science (WoS), an in-depth scientometric analysis was conducted to track publication trends, identify active countries and institutions, and analyze keyword co-occurrences. The top ten keywords identified are Social Security, Veterans, Military, Social Welfare, Disability, Military Spending, PTSD, Employment, Mental Health, and Social Policy. Additionally, the scoping review synthesized the literature to identify gaps and areas for further investigation. The findings suggest that increased military expenditure often results in lower economic growth and reduced social welfare, particularly in middle- and low-income countries, due to the diversion of resources from essential public services to military budgets. Conversely, social security programs such as those provided by the Providence VA Medical Center, have a positive impact on veterans' well-being, illustrating the importance of comprehensive support systems in military settings. The review also emphasizes the influence of public attitudes towards military conflicts on government policies and the necessity for robust social security measures in the face of aging populations and socio-economic challenges. This study uniquely contributes to our understanding of social security programs in military settings by emphasizing the importance of notational analysis in examining the intricate relationships between social support, technological advancements, and mental health, highlighting the need for comprehensive, interdisciplinary approaches to enhance socio-economic security, mental well-being, and human capital development among military personnel.
Thời gian sống thêm sau phẫu thuật nội soi lồng ngực điều trị ung thư phổi thứ phát di căn từ ung thư gan
Authors: Trần Minh Bảo Luân , Phạm Phú Khang , Châu Phú Thi , Nguyễn Hoàng Bình
Published: January 2025

Đặt vấn đề: Ung thư biểu mô tế bào gan (UTBMTBG) là loại ung thư phổ biến và tử vong hàng đầu tại Việt Nam, phổi là vị trí phổ biến nhất của di căn ngoài gan. Phẫu thuật nội soi lồng ngực cắt bỏ khối u phổi di căn từ UTBMTBG cho thấy tăng thời gian sống thêm.

Mục tiêu: Đánh giá các yếu tố liên quan thời gian sống thêm sau phẫu thuật nội soi điều trị ung thư phổi di căn từ UTBMTBG.

Đối tượng và phương pháp nghiên cứu: Hồi cứu mô tả loạt ca tất cả bệnh nhân được phẫu thuật cắt bỏ u phổi di căn từ UTBMTBG qua nội soi lồng ngực tại khoa Ngoại Lồng ngực, Bệnh viện Chợ Rẫy từ 01/2020 đến 08/2024.

Kết quả: Tổng cộng có 33 bệnh nhân được phẫu thuật nội soi lồng ngực cắt u phổi di căn với thời gian theo dõi trung bình là 38,8 tháng. Thời gian theo dõi trung bình là 24 tháng (4-56 tháng). Thời gian sống thêm toàn bộ trung bình 38,8 ± 3,9 tháng, tỷ lệ sống thêm sau 1, 2 và 3 năm lần lượt là 87,8%, 68,4%, 55,9%. Các yếu tố liên quan thời gian sống thêm: thời gian di căn phổi ≤12 tháng; kích thước khối u phổi ≥ 3cm; AFP, AFP-L3 và PIVKA-II đồng thời tăng có liên quan đến tiên lượng sống còn.

Kết luận: PTNS lồng ngực cắt u phổi thứ phát ở những bệnh nhân bị UTBMTBG di căn mang lại kết quả sống còn khả quan. Tuy nhiên, thời gian di căn phổi ngắn và kích thước u phổi lớn, các chất chỉ dấu sinh học tăng là yếu tố tiên lượng xấu cho người bệnh.
Current perspectives on glioblastoma treatment synergies between therapies and delivery systems
Authors: Das Debanjan
Published: January 2025

In adults, glioblastoma multiforme (GBM) is considered the most widespread and virulent malignancy of the central nervous system (CNS). This formidable brain tumor stands out as one of the most lethal types within the CNS cancer classification. Despite ongoing advancements in modality therapy, a curative solution remains largely unattainable. Consequently, the imperative to develop innovative systems, plans, and treatment strategies for expanding the repertoire of efficacious agents targeting GBM has emerged as a critical research priority. Presently, oncological research mostly concentrates on enhancing the treatment of glioblastoma multiforme using various innovative drug delivery technologies. Multiple therapies are available at diagnosis, including radiation therapy. New therapeutics are emerging due to breakthroughs in understanding the molecular pathophysiology of GBM and associated cell signaling networks. This comprehensive review examines cutting-edge drug delivery systems and therapeutic approaches for the management of GBM. The innovative methodologies and treatment strategies discussed demonstrate enhanced accuracy, favorable safety profiles, and encouraging effectiveness, potentially paving the way for a revolutionary approach to GBM elimination.