bluuebunny/crossref_metadata_2025 huggingface dataset:
Análisis crítico desde una visión jurídica de la Ley N° 30490 del adulto mayor
Authors: Andrade  Jimenez Catherine
Published: August 2024

Este estudio se enfoca en el análisis de la Ley N° 30490 y sus principios generales donde la temática discurre en el estudio de las instituciones tutelares de derecho positivo en el amparo y protección al adulto mayor, cuya existencia busca resolver y prevenir la exposición, maltrato, abandono hacia esta población vulnerable. La visión jurídica establece una revisión del carácter tuitivo de la norma y en los artículos y disposiciones complementarias finales y transitorias frente a un respeto fidedigno del ser humano en la dignidad siendo esto una finalidad del Estado y con una garantía de ejercicios de derechos para las mejoras de vida e integración dentro de una sociedad que busca la equidad en sus ciudadanos. El propósito principal de este artículo fue llevar a cabo un análisis crítico jurídico en el cual se empleó como investigación el método dogmático simple. Se concluye que no existe una adecuada implementación de cumplimiento a las normas existentes por los órganos tutelares y cuya deficiencia coadyuva a una desprotección de la sociedad en su conjunto hacia el adulto mayor.
Análisis e implementación de clustering en casos de dengue mediante algoritmo de aprendizaje no supervisado
Authors: Rincón Pinzón Miguel Alberto , Mejía Rodríguez Carlos Alberto , Ramírez Camargo Erney Alberto , Arévalo Vergel Lina Marcela
Published: August 2024

Este estudio se enfoca en la aplicación de algoritmos de aprendizaje no supervisado, específicamente técnicas de clustering para analizar la incidencia del dengue en San Juan, Puerto Rico, e Iquitos, Perú. El objetivo principal es probar la eficacia de estos algoritmos en la identificación de patrones ocultos en el conjunto de datos, compuesto por información ambiental, climática y casos de dengue. La investigación permitió comprobar la importancia de seleccionar la técnica de clusterización adecuada, evidenciada por el rendimiento variable de los métodos utilizados. Los resultados revelan la utilidad del aprendizaje no supervisado para comprender la propagación del dengue, resaltando la necesidad de considerar cuidadosamente la elección del algoritmo para análisis epidemiológicos y ambientales futuros.
Desarrollo de una aplicación móvil para promover el turismo en Norte de Santander integrando realidad aumentada
Authors: Gómez Galvis Fabián Gustavo , Gallardo Figueroa Erika Mercedes , Toro Gutiérrez Diego Fernando , Echeverri Valderrama Dadwing David
Published: August 2024

El departamento de Norte de Santander ha enfrentado desafíos significativos en los últimos años, con la pandemia de Covid-19 impactando duramente la industria turística. En 2022, ocupó el puesto 15 de 32 departamentos en el índice de competitividad turística. Este proyecto desarrolló una aplicación móvil llamada Turistear, con el objetivo de promover el turismo en la región mediante una guía turística 3D con realidad aumentada. Utilizando la metodología design thinking, centrada en resolver problemas complejos a través de la creatividad y la empatía con el usuario final, la app recopila información de los principales sitios turísticos, con representaciones 3D e información relevante. Unity se utilizó como programa núcleo, integrado con AR Foundation para la realidad aumentada, generando un aporte a la dinámica turística y el intercambio cultural en Norte de Santander.
MOCK IMPOLITENESS AND SYMBOLIC INTERACTIONISM IN KI SENO NUGROHO’S JAVANESE SHADOW PUPPET SHOW
Authors: Prakoso Imam
Published: August 2024

This research aims to investigate the use of mock impoliteness in Ki Seno Nugroho’s shadow puppet performances and the formation of symbolic interactionism between the puppeteer and the audience. This is due to the evolving forms of politeness within Javanese society, particularly in the realm of shadow puppet performances in the modern era. Additionally, there is a public perception of Ki Seno Nugroho as a humorous puppeteer using Bagong as a means of communication during his performances. The analysis of conversations between Bagong and other characters is used to explore the context of mock impoliteness and symbolic interactionism in Ki Seno Nugroho’s shadow puppet shows titled “Bagong Duta,” “Bagong Maneges,” and “Semar Mbangun Kayangan.” The results of this study indicate that the use of mock impoliteness serves to create a humorous atmosphere, thus enhancing the entertainment aspect of Ki Seno Nugroho’s shadow puppet performances. Moreover, it seems that Ki Seno Nugroho successfully portrays Bagong in three forms of symbolic interactionism: as a physical entity (the youngest son of Semar, the father of all panakawan characters in the Javanese puppet shadow story), a social entity (a representation of resistance by the common people towards authority), and an abstract entity (an entertainment element in shadow puppet performances).
Propagation Behavior Of Partially Coherent General Model Vortex Higher-Order Cosh- Gaussian Beam In Biological Tissues
Authors:   Laboratory LPNAMME, Laser Physics Group, Department of Physics, Faculty of Sciences, Chouaïb Doukkali University, P. B 20, 24000 El Jadida, Morocco, Benzehoua Halima , Saad Faroq ,   Department of Radiological Imaging Technologies, Cihan University-Erbil, Erbil, Kurdistan Region, Iraq, Belafhal Abdelmajid ,   Laboratory LPNAMME, Laser Physics Group, Department of Physics, Faculty of Sciences, Chouaïb Doukkali University, P. B 20, 24000 El Jadida, Morocco
Published: August 2024

Analytical expression for a partially coherent General Model vortex higher-order cosh-Gaussian beam (PCGMvHchGB) propagating in biological tissue medium is derived using extended Huygens-Fresnel method. Propagation characteristics of the PCGMvHchGB passing through biological tissue are discussed by some numerical results. The results indicate that the the PCGMvHchGB evolution is highly dependent on source beam parameters, including the spatial correlation length, decentered cosh and hollowness parameters, wavelength and orders of beam. Notably, the PCGMvHchGB in biological tissue transitions into a Gaussian beam more rapidly with smaller source parameters and further increasing propagation distance. This observation suggests that the resistance of PCGMvHchGB against turbulence is augmented with larger beam parameters. The significance of our findings lies in their potential applications in imaging technologies and bio-optical disease diagnosis.
Some Hematological and Hormonal Parameters in Thyroid Dysfunction Patients
Authors:   Department of Biology, Faculty of Science and Health, Koya University, Koya KOY45, Kurdistan Region - F.R. Iraq, Kareem Zrar , Danha Lwezana ,   Department of Medical Microbiology, Faculty of Science and Health, Koya University, Koya KOY45, Kurdistan Region - F.R. Iraq, Mohammed Abdullah ,   Department of Biology, Faculty of Science and Health, Koya University, Koya KOY45, Kurdistan Region - F.R. Iraq
Published: August 2024

Thyroid hormones play a crucial role in regulating metabolism and energy production. The cross-sectional study aimed to determine some hematological and hormonal parameters in thyroid dysfunctions patients. A total of 86 subjects were included in the study and grouped into three groups depend on thyroid stimulating hormone (TSH) concentration: Group 1 (12 healthy subjects as control), Group 2 (37 untreated hyperthyroid patients), Group 3 (Hypothyroid). Thyroid hormones, hematological parameters and hormonal parameters such as erythropoietin (EPO), leptin hormones and insulin-like growth factor-1 (IGF-1) were measured. The results of hematological analysis showed significant reduction in mean cell volume (MCV), mean cell hemoglobin (MCH), red cell distribution width (RDW) in hypothyroid patients as compared to control group. Significant decrease was seen in MCV and MCH in hypothyroidism patients as compared to hyperthyroidism patients. The absolute value of granulocyte increased significantly in hypothyroid patients as compared to hyperthyroid patients, but this increase was not significant as compared to control. Plateletcrit (PCT) significantly increased in hypothyroidism patients when compared to control. In conclusion this study revealed that serum erythropoietin (EPO) was decreased significantly in both hyperthyroidism and hypothyroidism compared to control. Moreover, significant decrease was observed in serum leptin and insulin-like growth factor-1 (IGF-1) in hypothyroidism patients as compared with control subjects.
Unveiling the Genetic Symphony: Exploring IL- 6 and IL-10 Gene Variations as Pivotal Predictors of COVID-19 Severity in the Babylonian Population
Authors:   College of Science for women, Babylon University, Babylon, IRAQ, Abd-Alhussein Elaf , Abdul Ameer Eman ,   College of Science for women, Babylon University, Babylon, IRAQ, Ali Aya ,   College of Science for women, Babylon University, Babylon, IRAQ, Al-Marzoqi Ali ,   College of Science for women, Babylon University, Babylon, IRAQ, Yas Ahmed ,   College of Science for women, Babylon University, Babylon, IRAQ, Shalan Ammar ,   College of Medicine, Babylon University. IRAQ
Published: August 2024

The new coronavirus, which is now many respiratory illnesses in Wuhan, China, under the name SARS- CoV-2, from December 2019. The illness COVID-19 was brought on by this virus. A worldwide pandemic has been caused by the virus spreading from person to person. The investigation tries assess polymorphism effect with some genes like Interleukin-6 and Interleukin- 10 on susceptibility to covid-19 in Babylon province. A total of (113) cases in this study (63) cases have clinical symptoms of covid -19 patient, (50) blood samples were collected from healthy people as a control group in this study during (November 2021 to February 2022) at Al-Morgan Hospital. There were many demographic data included in the present study such as age distribution, sex distribution, and geographic distribution of covid patients. Among (63) samples from suspected covid -19 patients from different age groups (20 to 80 years old). The three genotypes (CC, CG &GG), respectively (5.31, 38.94, 11.50), and the allele frequency of (C, G) were (44.44, 55.56) for patients and genotypes (CC, CG &GG), respectively (15.04, 23.01, 6.19) and the allele frequency of (C, G) was (60.00, 40.00) for controls. three genotypes (GG, GA &AA), (3.54, 51.33, 0.88) respectively, and allele frequency of (G, A) was (52.38, 47.62) respectively for the patients and genotypes (GG, GA &AA), (7.96, 20.35, 15.93) respectively, and allele frequency (G, A) was (41.00, 59.00) respectively for control people.
Leksikon Kuliner Khas Melayu Deli di Sumatera Utara : Kajian Ekolinguistik
Authors: Paino Novhira Putri , Gafari M. Oky Fardian , Adisaputera Abdurahman
Published: August 2024

Kuliner tradisional tidak hanya mencerminkan khazanah makanan, bahan-bahan yang digunakan, cara pengolahan dan keunikan cita rasa lokal, namun juga mewakili kesatuan budaya masyarakat tertentu. Leksikon nama kuliner khas Melayu Deli di Sumatera Utara mengandung makna budaya yang penting untuk dianalisis dan diinterpretasi untuk mengungkapkan nilai simbolis dan budaya yang terkandung. Penelitian ini bertujuan mendeskripsikan penamaan kuliner tradisional masyarakat Melayu Deli yang ada di Sumatera Utara berdasarkan tinjauan bentuk leksikon, pandangan masyarakat, dan bahan dasar kuliner tradisional tersebut. Fenomena kabahasaan dapat muncul berkaitan dengan isu kelestarian lingkungan sosial. Penelitian ini menggunakan metode penelitian deskriptif kualitatif. Pendekatan yang digunakan dalam penelitian ini adalah pendekatan ekolinguistik menggunakan teori dialektikal yang mencakup tiga dimensi praksis sosial, yaitu dimensi ideoligis, dimensi sosiologis, dan dimensi biologis. Objek yang diteliti merupakan makanan dan minuman yang dapat menunjukkan identitas budaya masyarakat Melayu Deli di Sumatera Utara. Data dalam penelitian ini didapatkan dari observasi dan studi pustaka. Hasil analisis menunjukkan bahwa leksikon kuliner khas masyarakat Melayu Deli di Sumatera Utara terdapat tiga pengelompokkan jenis kuliner yaitu makanan berat, makanan ringan, dan minuman.
THE IMPACT OF IMPLEMENTING NUMBERED HEADS TOGETHER COOPERATIVE LEARNING MODEL ON THE COMMUNICATION SKILL OF STUDENT AT JUNIOR HIGH SCHOOL 3 TEBO
Authors: Sulistianingsih Mawarni , Az Zahra Firda , Diliarosta Skunda , Putri Rahmah Evita
Published: August 2024

Low student communication skills have been the cause of this research, which had an impact on learning outcomes because there had not been training on students' communication skills through the application of appropriate learning models. The learning process, which still uses conventional learning models, namely group discussions, has not made each student active and responsible for group assignments and has not trained communication skills in scientific arguments. Therefore, an appropriate learning model is needed, one of which is the Numbered Head Together (NHT) type cooperative learning model. The aim of the research is to determine the effect of implementing the NHT type cooperative learning model on the communication skills of SMPN 3 Tebo students. The research uses a Quasi-Experimental type of research with a Nonequivalent Control Group Design. The research began with a pretest in the experimental class and control class, then treatment was given to the experimental class, and at the end of the learning process, a posttest was given to both classes. Samples were taken using purposive sampling technique. The test instrument consists of 13 description questions. Data were analyzed using Microsoft Excel to carry out prerequisite tests and hypothesis tests on overall communication skills and each ability indicator. The results of the research showed that there was an increase in students' overall communication skills between before and after treatment. Through the Mann Whitney test with Zcount -5.32 and Ztabel 1.96 with the criterion that H0 is accepted if –Ztabel ≤ Zcount ≤ Ztabel, then Zcount -5.32 < -Ztabel -1.96, then H0 is rejected, and H1 is accepted. It can be concluded that there is a significant influence of implementing the Numbered Head Together type learning model on the communication skills of students at SMP Negeri 3 Tebo Regency.
Analysis Of Mangrove Land Cover In The Sawo Marine Conservation Area, North Nias District
Authors: Ifanda Dayun , Slamet Bejo , Yunasfi Yunasfi , Sri Hastuti Liana Dwi
Published: August 2024

Sawo sub-district of North Nias Regency has a mangrove ecosystem that has been designated as a Regional Marine Conservation Area (KKLD) with an area of 29,230.85 ha. The 2005 earthquake and tsunami are reported to have caused damage to mangrove ecosystems due to rising land levels. The increase in land surface has resulted in the destruction of mangroves in this area. This has an impact on the sustainability of the mangrove ecosystem in this region and is important to study. The purpose of this study is to analyze changes in mangrove land cover after the tsunami in 2006 to 2022 and to analyze the impact of changes in mangrove land cover. The results found that mangrove land cover continues to experience a reduction in area, in 2006 an area of 139.78 ha and continues to decline until the remaining 70.87 ha in 2022. This is due to the increasing population growth that causes mangrove forest degradation and land conversion into agricultural land, plantations and infrastructure. The increase in population is a driving force, land clearing for settlements and plantations is a pressure factor (Pressures), land use change is a factor of existing conditions (State), reduced mangrove land area is part of the impact (Impact) and coastal spatial planning, counseling to reforestation is a response (Response). Land conversion to other uses is a contributing factor to the continued loss of mangrove land in this area.Keywords: Mangrove, Land cover, GIS, DPSIR
Water Quality of Unconfined Aquifer in Universitas Negeri Malang Following the Drinking Water Quality Standard of Indonesian Ministry of Health
Authors: Utaya Sugeng , Taryana Didik , Mashitoh Ferryati , Arinta Dicky , Prasad Ravinesh Rohit
Published: August 2024

The quality of groundwater is naturally determined by water-bearing rock characteristics. However, the progression of civilian activities also negatively affects the groundwater quality. Therefore, this study aims to assess the physical, chemical, and biological characteristics of groundwater in the Universitas Negeri Malang (UM) campus area in Indonesia and evaluate its compliance with drinking water quality standards, particularly the Class A standard. A comparative descriptive strategy was utilized in the study by involving groundwater in the campus area of UM. The focus of the research is water quality in unconfined aquifer. Through purposive sampling, 12 wells were selected to ensure appropriate spatial dispersion. Water samples were collected in sample bottles and tested for physical, biological, and chemical properties. These water quality tests were carried out in the Perum Jasa Tirta I Malang. Water quality data were analyzed qualitatively, descriptively, and comparatively. This study concludes that (1) the  groundwater on the UM campus generally meets the physical criteria for drinking water quality standards; (2) the chemical quality of the groundwater on the UM campus still satisfies the drinking water quality standards; and (3) biologically, the free groundwater on the UM campus fails to meet drinking water quality standards. The novelty of this research is that the biggest threat to the quality of free groundwater in the campus area is bacterial contamination from sanitation activities. Accordingly, it is recommended that groundwater is boiled before being utilized for drinking water purposes to neutralize the E. coli bacteria present in all well water samples.Keywords: Water Quality; Unconfined Aquifer; The Drinking Water; Quality Standard
Algebraic geometry and algorithms in class of Partially ordered set
Authors: Nikitin A.Yu.
Published: August 2024

The article will present the results of a study of algebraic geometry over partially ordered sets from model-theoretic and computational points of view. A polynomial algorithm for constructing a coordinate partial order for systems of equations over finite partially ordered sets is presented.
Critical Discourse Analysis of Television News Coverage on the Relocation of Indonesia’s Capital City
Authors: Adiputra Andika Vinianto , Agustin Herlina , Hijriah Moch. Rizqi
Published: August 2024

The new phase of the State Capital Relocation (IKN) began in 2019, after President Joko Widodo inaugurated that Indonesia's capital would move to East Kalimantan. The relocation has been ongoing since then and has entered the infrastructure development stage. However, beyond the grandeur of the IKN construction, many aspects have been affected. This research aims to understand how the examined media construct discourse on capital relocation. This research employs a qualitative method, utilizing Norman Fairclough's critical discourse analysis model. Discourse analysis is conducted through three stages: text analysis, discourse practice analysis, and sociocultural analysis.  Data collection methods were carried out using observation techniques, documentation studies through television media reporting, and in-depth interviews with informants representing Trans TV, Kompas TV, SCTV and NET. The research results in the text dimension indicate that the majority of the reporting is not in favour of the government's decision to relocate the capital because it is considered rushed in planning and has various negative impacts. In the discourse practice dimension, the reporting is heavily influenced by the media's socio-economic status (SES) in shaping the discourse. In the sociocultural dimension, it is shown that the capital relocation is one of the political strategies, and there is disagreement among various parties regarding the relocation. Therefore, the researcher suggests that the examined media should present balanced reporting and provide a balanced perspective in their coverage. Furthermore, caution is needed from the media to avoid being influenced by external media domination, ensuring that the information reported is accountable and prioritizes the public interest.
The Counter-Issues of Tanah Datar Government Regarding the Coverage News of Terrorism
Authors: Okditazeini Vannyora
Published: August 2024

Tanah Datar, known for its rich Minangkabau cultural heritage and dedication to the philosophy of Kitabullah, is facing a disturbing trend. Despite its deep-rooted religious values, Densus88 has reported that the city has the second-highest number of NII terrorist personnel in West Sumatra. This revelation exposes a stark contrast between Tanah Datar's cultural identity and terrorism reports. The government must act to prevent further misconceptions. This research aimed to evaluate the distribution and focus of content related to terrorism on internal and external media sources and the government's approach to countering these issues. The study employed content analysis to examine the news by the Tanah Datar Regency government. This study applied a content analysis approach by Kripendorff, which involved three stages: crawling, coding, and abstracting. In the first phase of analysis, the study found 50 units of data from internal sources and 229 from external sources. The research findings indicated that news related to terrorism in Tanah Datar is only found in external media sources. The top three counter-issues pursued by the government include government branding with 158 posts (69%), and tourism impressions with 16 posts (7%). and health literacy with 11 posts (4.8%). The government has adopted an unconventional approach to address terrorism issues. Rather than reporting such issues on official channels, they opt to utilize media partners, offering an alternative strategy to tackle terrorism.
Environmental communication strategy against deep-sea tailings disposal in Morowali
Authors: Lampe Ilyas , Yusuf Anggra , Kudratullah Kudratullah , Saputra Gemilang Bayu Ragil
Published: August 2024

Environmental communication movement against Deep-Sea Tailings Placement (DSTP) permit for nickel mine waste of Indonesia Morowali Industrial Park (IMIP) skyrockets in response of DSTP issue. One example of the Non-Government Organization that pushed this movement is Jaringan Advokasi Tambang (JATAM), especially JATAM Sulteng. This movement is crucial considering the increase of nickel mining operations due of ellectronics demand, either for transportation or telecommunication purposes. From our initial observations, we concluded that this movement stands on discourse management of nickel mining, waste mangement and its effects to the environment. Thus, this study was done to discern what environmental communication strategy JATAM Sulteng choose to disseminate informations on the effects of nickel mining and processing of IMIP which also included on how they pushed the movement against DSTP on Morowali sea. This study was done through qualitative descriptive – case study approach. Data were collected through observation on publications, in-depth interview with three informants from JATAM Sulteng and document study. The results shows that the main stratagem choosen was to push the discourse of environmental degradation due to DSTP. The environmental degradation was then connected to the livelihood of the communities surrounding the mine and coastal communities adjacent to the DSTP sites. Supporting strategies for information dissemination also included focus group discussion (FGD), various critical essays, fact sheets and organizational press releases through official websites, mass media and social media, natural resources discussion forums, demonstrations and submission of petitions to the government and nickel extractive industry investors.
Maximizing brand image building as a semi-pub café through emotional branding
Authors: Izzah Nurul , Sumartias Suwandi , Perbawasari Susie
Published: August 2024

This research discusses a café in Makassar City called Pyur for You Café, which decided to rebrand when it was threatened with permanent closure due to the Covid-19 pandemic in 2021. The café previously had a work-friendly concept and was then rebranded as a semi-pub café, which implemented emotional branding. This study aims to analyze the Pyur For You café, discuss the background of the Pyur For You café in choosing to apply emotional branding to a new café concept, discuss the process of creating its identity, and analyze how the Pyur For You café applies the emotional aspect of branding to a new concept. So that consumers are attached to the café and prefer the Pyur For You Café over other competitors. This research is a qualitative case study with informants from the café, namely, the owner and staff, who understand the application of emotional branding. The author also randomly selected five consumers who met in the Pyur For You café area to conduct in-depth interviews. The results of the interviews regarding rebranding were analyzed through the four basic pillars of emotional branding, according to Marc Gobe. The findings show that the Pyur For You café has implemented the basic concept of emotional branding, which is communicated through relationships with consumers, the interior design of the café, events held, and food served. However, its application can still be maximized.
Cultural diversity in organizational communication management at English course in Vietnam
Authors: Meltareza Ridma , Wiryany Detya
Published: August 2024

English serves as the global lingua franca, facilitating communication and bridging cultural differences worldwide. Its significance in various sectors, such as business, technology, science, and media, solidifies its position as a universal means of communication. This study explores the increasing importance of English in Vietnam, particularly in major cities like Hanoi, where it plays a crucial role in business, tourism, and higher education. The focus is on Mercury Center, a prestigious language institution in Hanoi, which collaborates with foreign travelers as volunteer teachers to enhance Vietnamese citizens’ English proficiency. Using qualitative research methods, including interviews, direct observations, and literature reviews, the study assesses the impact of foreign volunteer teachers on language education in Vietnam. It reveals that students and parents highly value and trust foreign teachers for their perceived authenticity and expertise in English. These findings underscore the significance of cultural diversity in English language education. By embracing foreign volunteer teachers and creating a cross-cultural learning environment, language institutions like Mercury Center can provide a more enriching and impactful learning experience for Vietnamese students. Understanding and managing cultural diversity can lead to improved communication and contribute to the success of language education initiatives in Vietnam. The recommendation from these findings is to optimize the utilization of cultural diversity within educational institutions to enhance organizational performance, create an inclusive work environment, and improve workgroup efficiency by considering consumer preferences and needs while developing more effective marketing strategies.
Zangrandi, Marcos. Los agentes dobles. Escritores y cineastas en la transformación del cine argentino. Rosario, Beatriz Viterbo, 2023, 186 páginas
Authors: Peralta Jorge Luis
Published: August 2024

Revisión del libro Los agentes dobles. Escritores y cineastas en la transformación del cine argentino por M. Zangradi
Shocks sobre precios de commodities e inflación
Authors: Toledo Fernando , Bertholet Nicolás , Montes-Rojas Gabriel
Published: August 2024

Examinamos el efecto de shocks que afectan la tasa de variación de precios de commodities sobre la tasa de inflación en un panel de 54 países con datos trimestrales para el período I.1996-IV.2020 mediante la estimación de distintos modelos de paneles de vectores autorregresivos. Encontramos que un aumento de 10 puntos porcentuales (pp) en la tasa de variación del precio del Petróleo Crudo genera un incremento del 0.5 pp por ciento en la tasa de inflación en el primer trimestre, con un efecto acumulado de 1.2 pp. Un shock en la dinámica del precio del Gas Natural tiene un efecto similar. Un shock inflacionario de Alimentos de 10 pp se asocia a un incremento contemporáneo de 1.3 pp por ciento en el primer trimestre, con un efecto acumulado de 3 pp. El efecto acumulativo sobre la tasa de inflación se observa en mayor medida en los importadores netos de commodities. Al considerar las asimetrías asociadas a incrementos y disminuciones en las tasas de variación de precios de commodities, los efectos son de signos distintos, pero de similar magnitud respecto a su impacto inflacionario. Finalmente, durante el período de financiarización de commodities (2005-2015), se advierten menores efectos sobre variaciones de precios en el corto y largo plazo.
On setting boundary conditions for calculations of turbomachines in 3-d computer packages
Authors: Lazarev L. Ya. , Fadeev V. A.
Published: August 2024

Unfortunately, in a growing number of publications of the results of the study of turbomachines in ANSYS and other packages, insufficient attention is paid to the choice of the flow model (absolute or relative) and the setting of boundary conditions in the areas adjacent to the rotating impeller: shroud seal, diaphragm (end) seals, gap over shroudless blades, steam balance holes, etc.

As a rule, these areas contain such elements of geometry as a “ledge”, “projection”, “crest”, the flow around which, and, consequently, their resistance depends on the angle of incoming flow relative to the barrier. In the stages of turbomachines in sections behind fixed blade units, angle α1 between the flow velocity vector (in absolute motion) and the circumferential velocity is 10°÷25° (for steam turbine stages), 20°÷35° (for gas turbine stages) and 40°÷75° ((for axial compressor stages). It is shown (using the example of viscous flow around the “ledge + projection” system) that a change in the angle in the range of 15°÷90° changes the resistance by almost 2 times.

The choice of a particular type of flow model (absolute or relative) for the domain primarily determines the value of the angle of interaction of the flow lines with an obstacle: it remains close to α1, or close to β1 = α1 + 20°÷70°, which significantly changes the qualitative picture of the viscous flow around the characteristic elements of geometry (“ledge”, “projection”, “crest”), and the values of integral parameters (flow rate, power, efficiency). The lack of recommendations on the correct choice of boundary conditions will inevitably lead not only to the inability to compare the results of various published studies, but also to their objective value. Therefore, the need to substantiate proposals for the choice of flow models in the areas of labyrinth seals, steam balance holes, gaps over shroudless blades, etc. is very relevant.
500 kW closed cycle gas turbine unit with different working fluids
Authors: Baranov V. V. , Barskov V. V. , Matveev Y. V.
Published: August 2024

This article considers a 500 kW closed cycle gas turbine unit. In contrast to open or semi-closed cycles, a closed cycle implies a working fluid circulating continuously within a closed loop. In other words, a working fluid (any working fluid) with the required initial parameters depending on the properties of the selected working fluid is injected into a closed circuit consisting of a compressor, heat exchangers of various purposes and a turbine. A unit with recirculation of combustion products at high pressure can be created based on existing units with minor modifications. Instead of emission into the atmosphere, the exhaust gases enter the high-temperature heat exchanger, where it gives heat to the closed-cycle gas turbine unit. First of all, the application of such units is relevant at compressor stations in conjunction with the gas turbine drive of the blower. The study involved thermal calculation of a closed-cycle gas turbine unit with different working fluids: carbon dioxide, helium and argon. The main objective is to study the advantages and disadvantages of alternative working fluids with their subsequent comparison. Since the main chemical and physical properties of alternative working fluids differ from the classical ones, there is a possibility of obtaining higher parameters of the unit. According to the results of calculations it is established that the most promising working fluid is carbon dioxide, because this can be used at a wide range of temperatures and pressures. It should also be noted that the consumption of carbon dioxide is the lowest compared to other working fluids. The efficiency of such an installation is 28%, but there is a possibility of improvement if regeneration is added.
Development of methodological foundations for analyzing the system reliability of modern electric power systems
Authors: Krupenev D. S.
Published: August 2024

The article discusses issues related to improving the methodological foundations for analyzing the system reliability of electric power systems. In particular, a decomposition of the complex property “system reliability” is presented, which covers all stages of control of electric power systems. In accordance with the new decomposition, system reliability is formed by three components: security (operational reliability), planned reliability and adequacy. Each of the components is designed to solve specific problems at various stages of managing electrical power systems. Thus, the methodological apparatus for analyzing adequacy should mainly be used when solving problems of designing the development of electric power systems, the methodological apparatus for analyzing planned reliability should be used when solving problems of work planning (states and balances), and the methodological apparatus for analyzing security when solving problems of operational management. Unlike the concepts of adequacy and security, the concept of planned reliability is new. The article presents the rationale for introducing the concept of “planned reliability” into the practice of managing electric power systems. The main differences between planned reliability and security and adequacy are reflected. The basic requirements for the methodology for assessing the planned reliability of electric power systems are formulated. It is indicated that when assessing the planned reliability of electric power systems, it is necessary to take into account a number of random processes in the functioning of energy facilities, such as energy storage systems, hydroelectric power plants, renewable energy sources and others, and this requires the use of the mathematical apparatus of random processes in the functioning of systems. To assess planned reliability, it is proposed to use the sequential Monte Carlo method.
Periodisasi Sejarah Sastra Masa Andalusia
Authors: Nisa' Ida Chairun , Budi Rahmat Dinni Haerul
Published: August 2024

The periodization of Arabic literature in Andalusia as shown by historians differs from one another. This is interesting to research, especially examining the differences in periodization. This research aims to find a reliable chronology of the periodization of the history of Arabic literature in Andalusia. To find the correct chronology of the periodization of Arabic literary history, researchers use historical methods. Researchers found the following periodization: chronologically, the historical periods of Arabic literature in Andalusia are divided into six. First, 711-755 AD, no literary manuscripts have been found. Second, 755-912 AD, literary texts were found under Ad-Dakhil's reign but were still oriented towards Masyriq literature. Third, 912-1013 AD, namely the period when the group of kings called "Mulukut Tawaif" was formed and literary critics began to appear. Fourth, 1013-1086 AD, literature at this time was still oriented towards Masyriq literature but the difference lay in the ability of Andalusian writers to use more real and imaginative wording. Fifth, 1086-1248 AD, during this time poets and philosophers emerged, among the famous ones being Ibnu Thufail and Ibnu Rushd. Sixth, 1248-1492 AD, during this period lament literature began to be introduced and continued to develop rapidly.
Does corporate social responsibility dimensions effects on employees’ satisfaction and retention for sustainability?
Authors: Malik Azam
Published: August 2024

This study investigates the relationship between Corporate Social Responsibility (CSR) dimensions and employees’ satisfaction and retention for sustainability in banks.  Four components (economic, legal, ethical, and philanthropic) are analyzed CSR activities and their effects on employee’s satisfaction and retention in the company. Purposive and convenient sampling method was used to get the information from 221 participants. The entire form of the dataset is utilized to execute regression and correlation analysis using SPSS. In order to find out the relationship between economic, legal, ethical, and philanthropic factors and employee’s satisfaction and retention, regression beta coefficient and correlation were used to analyze. This study also examines the relationship between job satisfaction and intentions to retain with an organization. The findings demonstrate that the CSR aspects of ethical and philanthropic have a considerable and favorable influence on employee’s satisfaction. The outcome also demonstrates a good and prominent influence of legal CSR on the satisfaction of employee’s to retain with the firm. Moreover, this study demonstrates that economic aspect of CSR has no significant impact on employee’s retention and satisfaction. Correlation analysis depicts that economic CSR is positively and significantly connected with employee’s retention and satisfaction. This research came to the conclusion that enhancing employees view regarding CSR activities such as economic, legal, ethical, and philanthropic will increase employee’s satisfaction. Therefore, executives and managers in the banks should take steps to influence how employees see CSR areas in order to raise employee’s satisfaction and retention in the banks for sustainability.
Policy development of road plus property developer on toll road with SOE assignment schemes
Authors: Kurnia Remi Fitriadi , Purwadita Agia R. , Latief Yusuf , Rarasati Ayomi D. , Soehodho Sutanto
Published: August 2024

The Trans Sumatra Toll Road (TSTR) is a mega toll road project with an assignment State-Owned Enterprise (SOE) scheme in Indonesia. In its development, TSTR has several limitations, including funding, low investment feasibility and the un-optimum implementation of land value capture (LVC). This has the impact of delaying the completion of project development, decreasing the performance of toll road developer companies and even causing bankruptcy. LVC is an alternative funding scheme proven successful in other countries such as Hongkong, England and Vietnam. Several transportation projects based on transit-oriented development have successfully achieved profits using the LVC method. With a low project feasibility, the implementation of the Road Plus Property Developer (RPPD) business model is expected to be a solution to improve investment performance in the TSTR project. RPPD is defined as an assignment scheme toll road business model based on LVC implementation. This research aims to develop policies for implementing the RPPD business model on toll road SOE-assigned schemes. The data was collected by in-depth interviews with experts in two stages. The data analysis method used is Soft System Methodology (SSM). This research produces two recommended actions: ratification of the Presidential Regulation regarding the implementation of LVC and institutional transformation of regionally owned business entities in the property sector. It is hoped that implementing the RPPD policy will become a priority in completing the TSTR project.
Contribution of non-timber forest products to the livelihoods of households residing adjacent to Loita Forest, Kenya
Authors: Mpaayei Anne , Park HyeMin
Published: August 2024

The use and commercialization of non-timber forest products (NTFPs) for livelihood development and their adverse impact on forest ecosystems have received significant academic attention recently. To conserve forests and ensure continued livelihood support, it is essential to harvest NTFPs in a sustainable manner. Thus, efforts to conserve such resources must be preceded by understanding how communities interact with them. This study aimed to clarify the relationship between participation in forest conservation and income earned from forests. The primary data were collected via a socio-economic survey of 151 households residing adjacent to Loita Forest in Kenya. The population in the study area extracts NTFPs, such as firewood, natural medicine, building poles, and honey. There is a positive relationship between participation in forest conservation efforts and income earned from the sale of NTFPs. Thus, the Loita Community Forest is a crucial source of essential NTFPs for adjacent households’ subsistence. Therefore, these households should be encouraged to participate more in forest conservation efforts. Such endeavors would facilitate livelihood development of local communities and sustainable management of forests in Kenya.
Improving the enterprise performance: An empirical analysis of digital supply chain transformation in Guangxi manufacturing industry
Authors: Wang YanQing , Pochan Jessada , Panichakarn Boonsub , Shafiq Muhammad
Published: August 2024

This study investigates how digital supply chain transformation affects enterprise performance in Guangxi’s manufacturing sector, with a focus on Electric Vehicle (EV) enterprises. Utilizing the quantitative research approach, data was collected through a questionnaire survey from 197 respondents including the manufacturers, distributors, and suppliers of the Guangxi Electric Vehicle Manufacturing Industry. To test the reliability, correlation, regression, and discriminant validity assessments the structural equation modeling is used by applying the SmartPLS 3.0. The results revealed that there is a strong correlation between agile capability, digital transformation, innovation capability, and enterprise performance. All the structured hypotheses tested significantly positive, though, digital supply chain transformation positively influences enterprise performance in Guangxi’s manufacturing industry, emphasizing the importance of agile capability, digital transformation, and innovation capability. This study highlights the importance of digital supply chain transformation in improving business performance in the Guangxi manufacturing sector. It serves as a guide for policy decision-makers and investors while they are planning their future investments, especially on issues about the optimization of supply chain operations.
Endomyocardial biopsy through the left internal jugular vein in heart transplant recipients: a single center experience
Authors: Nalli Chiara , Sponga Sandro , Benedetti Giovanni , Guzzi Giorgio , Di Nora Concetta , Stella Laura Anna , Bortolotti Uberto , Livi Ugolino , Vendramin Igor
Published: August 2024

Endomyocardial biopsies for rejection monitoring after heart transplantation are generally performed through the right internal jugular vein. We aimed to assess the feasibility and safety of using the left internal jugular vein approach as a valid alternative to a femoral vein for endomyocardial biopsies whenever thrombosis of the right internal jugular vein precludes insertion of a bioptome.

We have reviewed our experience with heart transplantation in the last 2 decades to identify patients in whom surveillance endomyocardial biopsy was performed through the left internal jugular vein. We herein describe the step-by-step procedure and report the preliminary results.

From May 1, 2000 to January 31, 2024, 561 orthotopic heart transplants have been performed in our unit. In 49 patients (8.7%), the right internal jugular vein access was found to be unsuitable or occluded at eco-Doppler evaluation; in 15 of them (30%) a total of 206 endomyocardial biopsies have been performed, using the left internal jugular vein, without complications.

Our experience demonstrates that the left internal jugular vein is a valid alternative approach for endomyocardial biopsies when the right internal jugular vein is not available. This technique is feasible, safe and reproducible and allows adequate rejection monitoring after heart transplantation.
The effect of postural orientation on body composition and total body water estimates produced by smartwatch bioelectrical impedance analysis: an intra- and inter-device evaluation
Authors: Vallecillo-Bustos Anabelle , Compton Abby T. , Swafford Sydney H. , Renna Megan E. , Thorsen Tanner , Stavres Jon , Graybeal Austin J.
Published: August 2024

Advances in wearable technologies now allow modern smartwatches to collect body composition estimates through bioelectrical impedance techniques embedded within their design. However, this technique is susceptible to increased measurement error when postural changes alter body fluid distribution. The purpose of this study was to evaluate the effects of postural orientation on body composition and total body water (TBW) estimates produced by smartwatch bioelectrical impedance analysis (SWBIA) and determine its agreement with criterion measures. For this cross-sectional evaluation, 117 (age: 21.4±3.0 y; BMI: 25.3±5.7 kg/m2) participants (F:69, M:48) completed SWBIA measurements while in the seated, standing, and supine positions, then underwent criterion dual-energy X-ray absorptiometry (DXA) and bioelectrical impedance spectroscopy (BIS) assessments. In the combined sample and females, body fat percent, fat mass, and fat-free mass using SWBIA were significantly different between the supine and standing positions (all p<0.001), though group level agreement with DXA was similar across positions. Supine SWBIA TBW estimates were significantly different between seated and standing estimates (all p≤0.026), but further analyses revealed that this was driven by the supine and seated differences observed in females (p=0.003). SWBIA TBW demonstrated similar group and individual level agreement with BIS across body positions with slight improvements observed during seated and supine assessments for females and males, respectively. SWBIA may demonstrate slight intra- and inter-device differences in body composition and TBW when measured across postural orientations, though further evaluations in external/clinical samples are necessary. While sex/position-specific guidelines may improve precision, these findings highlight the importance of standardized body positioning when using SWBIA.