bluuebunny/crossref_metadata_2025 huggingface dataset:
EFFECT OF NANOPARTICLES ON CLAY STABILITY IN WATER: IMPLICATION FOR WATER BASED DRILLING MUD
Authors:   ", Ogolo Naomi Amoni ,   Institute of Petroleum Studies, University of Port Harcourt, Rivers State, Nigeria, e-mail: amoniogolo@yahoo.com ", Onyekonwu Mike ,   Institute of Petroleum Studies, University of Port Harcourt, Rivers State, Nigeria
Published: June 2023

Clay stability in water is essential in chemical and manufacturing processes. In water based drilling fluids, montmorillonite dispersed in water is commonly used to maintain fluid density that counter-balances pressure effects from formation layers. However, due to gravity, clay particles settlement at the bottom of holes is inevitable especially if operations in holes are suspended for technical reasons such as during fishing operations and dislodging of stuck pipes. This necessitates the introduction of additives that can enhance dispersion of clay particles in water columns. It has been reported that some nanoparticles can enhance clay stability in water; hence the primary objective in this work is to identify nanoparticles that have potentials to enhance clay stability and nanoparticles that promote clay instability in distilled water and brine of 30 g/l. In the experimental work, clays and different kinds of nanoparticles were dispersed in columns of water and the volumes of settled particles were plotted against time. Experimental results show that nanoparticles of silicon, zirconium, iron, tin, nickel and magnesium oxides all have the capacity to improve clay stability in water, while the presence of Al2O3 and ZnO nanoparticles promote clays instability in water. It is therefore recommended that further research on desirable drilling fluid properties be conducted with nanoparticle oxides that promote clay stability in water to investigate their suitability as additives in water based drilling muds.
MOVEMENT OF TWO-PHASE GAS-LIQUID FLOW IN HORIZONTAL AND INCLINED PIPES
Authors:   ", Silapov Begench ,   Petroleum-Gas University of Ploiesti, Romania e-mail: bsilapow@mail.ru", Nistor Iulian ,   "Petroleum-Gas University of Ploiesti, Romania e-mail: nistor@upg-ploiesti.ro"
Published: June 2023

"Two-phase flows are found in almost all areas of technology. For example, tubular evaporators, boiling water reactors, boiler blowdown systems, heaters, boilers, gas lift pumps, oil and geothermal wells, oil and gas pipelines, refrigerators, process pipelines, and condensers. Two-phase flows are classified as mixtures. According to the composition of the mixture are divided: (a) for single-component (or one-component) - vapor-liquid flows; (b) multicomponent - gas-liquid flows. One-component mixtures consist of the same substance in different states of aggregation. This can be not only vapor-liquid, but also a mixture of liquid or vapor with a solid phase, a water-ice mixture, or a vapor flow with ice particles, for example, in sublimation installations. Multicomponent mixtures are a combination of substances of different physical nature. These include not only gas-liquid flows, but also, for example, mixtures of air and sand, water and oil. The paper presents the main attention is paid to the movement of two-phase flows in the pipeline."
QUALITY ASSESSMENT OF DISPOSED OILFIELD PRODUCED WATER IN THE NIGER DELTA
Authors:   Department of Chemical Engineering, University of Huddersfield, Queensgate, Huddersfield, England, Amakiri Kingsley Tamunokuro , Ogolo Naomi Amoni ,   "Institute of Petroleum Studies, University of Port Harcourt, Rivers State, Nigeria, e-mail: amoniogolo@yahoo.com "
Published: June 2023

Oilfield produced water is the largest waste stream generated during oil and gas production and it has a high potential for contamination of marine environments when disposed without treatment. However, effective treatment before disposal is acceptable, but meeting the approved standards for discharge remains a challenge for the petroleum industry. To determine the extent of compliance with regulated standards in the Niger Delta, the physicochemical properties of produced water from two oil fields before and after treatment were investigated in this study. Concentrations of heavy metals and organic compounds in the water samples were analysed using atomic absorption spectrophotometer and gas chromatography respectively. Results show that oilfield waters from the Niger Delta contain high concentrations of heavy metals and organic compounds. It is observed that treated produced waters for disposal fall below the approved standards for heavy metals and organic compounds while concentrations of dissolved oxygen fall below 5mg/l which is detrimental to aquatic organisms. Disposal of large volumes of such waters into the ecosystem over an extended period of time endangers aquatic lives and degrades the marine environment. It is therefore recommended that produced water be re-injected back into the very formations from where they are produced to ensure environmental protection and preservation of marine ecosystems.
A REVIEW OF NATURAL GAS-HYDROGEN BLENDING IN PIPELINE SUPPLY AND DISTRIBUTION
Authors:   National Agency of Mineral Resources, Bucharest, Romania, Gal Sorin , Albulescu Mihai ,   Oil-Gas University of Ploiesti, Romania, Radulescu Renata ,   Oil-Gas University of Ploiesti, Romania, Chis Timur ,   Oil-Gas University of Ploiesti, Romania, email: timur.chis@gmail.com
Published: June 2023

The reduction of greenhouse gases is an assumed objective of the European Community. Thus, in the future, natural gas transport and distribution pipelines will also have to deal with ensuring the transport of mixtures formed between hydrogen, biomethane and natural gas from fossil resources. Considering the increase in the amount of biomethane and the increase in the amount of green hydrogen produced, these fuels’s use in natural gas distribution networks is expected. The article presents an analysis of hydrogen production methods as well as numerical models of hydrogen transportation and mixing with natural gas. Also, there are presented the results obtained at the international level regarding the thresholds for the use of hydrogen in the fossil fuel of natural gas type, as well as the effects produced by the presence of this gas on the transport and supply systems. Numerical models of mixing and dynamic behavior of the new fuel obtained are also analyzed.
THE QUALITY OF CRUDE OIL FROM THE MUANDA FIELD AND ITS CONSEQUENCES ON THE INSTALLATIONS
Authors:   University of Kinshasa, Faculty of Oil, Gas and Renewable Energy, Department of Exploration and Production Engineering, Democratic Republic of Congo, Ondontshia Nkoyi Jean ,   e-mail: jean.ondontshia@unikin.ac.cd, Safari Kachunga Benjamin ,   University of Kinshasa, Faculty of Oil, Gas and Renewable Energy, Department of Exploration and Production Engineering, Democratic Republic of Congo, Kabesa Kilungu Joel ,   University of Kinshasa, Faculty of Oil, Gas and Renewable Energy, Department of Exploration and Production Engineering, Democratic Republic of Congo, Ponge Otshudi Jerry ,   Analysis - Quality Engineer at Hydrac, Democratic Republic of Congo, Wetshondo Osomba Dominique ,   University of Kinshasa, Faculty of Science, Department of Geosciences, Democratic Republic of Congo
Published: June 2023

"The study on the quality of the crude oil of the Muanda field and its consequences on the installations, was carried out within the framework of our scientific research of study of Advanced Diploma (DEA). The objective of this study was to determine upstream the physical properties and composition of the Muanda field crude oil, in order to determine the conditions of asphaltene deposits in the tubing and other installations. To achieve this, the samples collected in the field were analysed in our laboratories and at the PVT Laboratory of Sonangol in Luanda to constitute the results of this manuscript. The results of these analyses show that the crude oil of the Muanda field is a Medium Crude Oil (29.7°API) on the API density scale with the hypothesis of two sources: one of Light Oil, the other of Medium Oil). These two sources of crude oil, induce the establishment of two oils of different viscosities and pour points of which one more viscous (Mu 23) and the other less viscous (Mu 16 and Mu 2) having the average pour point at 15° C (60°F). The Standing correlation gave acceptable results and close to those of the Electromagnetic Viscometer (EMV). The chemical composition showed that the crude oil is composed of 18.63% of gas and 81.37 % of Paraffins and Asphaltenes, and that this oil is of low sulfur content type (Low Sulfur Content (LSC) <0.6% weight). A solid sample collected from the oil field was characterized through melting, further heating and solidification point (28 oC). "
EFFICIENT ENERGY STORAGE AND HYDROGEN PRODUCTION FOR A SUSTAINABLE FUTURE INSIDE THE OIL AND GAS INDUSTRY
Authors:   ", Oprisescu-Dulgheru Andrei-Stefan ,   Petroleum-Gas University of Ploiesti, Faculty of Petroleum and Gas Engineering, Romania, email: oprisescuandrei303@gmail.com ", Raduta-Petrescu Andrei ,   "Polytechnic University Bucharest, Faculty of Electrical Engineering, Romania, email: radutaandrei1@yahoo.ro "
Published: June 2023

Hydrogen transcends its traditional perception as a standalone green energy source, assuming a pivotal role in elevating the efficiency of green energy production. Rather than serving as a primary means of energy generation, hydrogen emerges as a powerful agent for optimizing the energy production process. Its synergistic integration with fuel cell technology presents a compelling avenue for capturing and storing surplus energy, effectively tapping into otherwise unrealized potential energy resources. This paradigm shift from energy generation to energy optimization underscores the transformative impact of hydrogen in advancing the frontiers of sustainable energy research and development. The present article delves into the profound implications of harnessing hydrogen for the dual purpose of energy storage and production, elucidating its transformative potential in mitigating carbon emissions linked to both onshore and offshore operations. By embracing hydrogen as a dynamic element within the energy landscape, novel pathways emerge to revolutionize the reduction of carbon footprints, pushing the boundaries of sustainable practices and redefining the frontiers of energy efficiency in onshore and offshore domains.
SPIDER4LEGS MOBILE ROBOT DESIGN CONTROLLED BY THE ESP32 PLATFORM
Authors:   Petroleum-Gas University of Ploiesti, Romania, Necula Vlad Catalin , Stamate Diana ,   Petroleum-Gas University of Ploiesti, Romania, Bucur Gabriela ,   Petroleum-Gas University of Ploiesti, Romania, e-mail: gbucur@upg-ploiesti.ro
Published: June 2023

The grazing robot is a dynamic system, consisting of a platform (the body of the robot) and a number of legs with structures similar to the kinematic chains of manipulator robots. Grazing robots can have a redundant number of legs, therefore they can ensure a static stability even if one or more legs are destroyed [10]. The objective of the work is to design a mobile robot controlled with the Arduino board controlled by an ESP 32 logic processor. The robot proposed in the paper is a spider-type robot with four legs, named SPIDER4LEGS. The components used to make the robot are the following: ESP32 development board, ESP ROOM-32, WiFi and Bluetooth BLE, Dual Core; PCA9685 module, I2C interface, 16 CH, servo motor; 12 Servo motors SG90 180 degrees. A possible field of application of these robots is the internal inspection of pipelines transporting petroleum products [7],[8],[9].
SECURING DATA AND APPLICATIONS IN CLOUD. CASE STUDY
Authors:   ", Cangea Otilia ,   Petroleum-Gas University of Ploiesti, Romania, email: ocangea@upg-ploiesti.ro "
Published: June 2023

Security is a principal concern when entrusting an organization’s critical information to geographically dispersed cloud platforms. In addition to the conventional IT system security procedures, designing security into cloud during the software development life cycle can greatly reduce the cloud attack surface. The paper focuses on presenting IBM Cloud security policies and their architecture and conducts a study of the security implementation steps, beginning with user's authentication on the Cloud platform. Hereinafter, the developed experimental application - a monitoring environment system - retrieves temperature, humidity, and pressure values from dedicated sensors, thus using the facilities offered by IBM Cloud platform.
Impact of deoxygenation and warming on global marine species in the 21st century
Authors: Morée Anne L. , Clarke Tayler M. , Cheung William W. L. , Frölicher Thomas L.
Published: June 2023

Abstract. Ocean temperature and dissolved oxygen shape marine habitats in an interplay with species' physiological characteristics. Therefore, the observed and projected warming and deoxygenation of the world's oceans in the 21st century may strongly affect species' habitats. Here, we implement an extended version of the Aerobic Growth Index (AGI), which quantifies whether a viable population of a species can be sustained in a particular location. We assess the impact of projected deoxygenation and warming on the contemporary habitat of 47 representative marine species covering the epipelagic, mesopelagic, and demersal realms. AGI is calculated for these species for the historical period and into the 21st century using bias-corrected environmental data from six comprehensive Earth system models. While habitat viability decreases nearly everywhere with global warming, the impact of this decrease is strongly species dependent. Most species lose less than 5 % of their contemporary habitat volume at 2 ∘C of global warming relative to preindustrial levels, although some individual species are projected to incur losses 2–3 times greater than that. We find that the in-habitat spatiotemporal variability of O2 and temperature (and hence AGI) provides a quantifiable measure of a species' vulnerability to change. In the event of potential large habitat losses (over 5 %), species vulnerability is the most important indicator. Vulnerability is more critical than changes in habitat viability, temperature, or pO2 levels. Loss of contemporary habitat is for most epipelagic species driven by the warming of ocean water and is therefore elevated with increased levels of global warming. In the mesopelagic and demersal realms, habitat loss is also affected by pO2 decrease for some species. Our analysis is constrained by the uncertainties involved in species-specific critical thresholds, which we quantify; by data limitations on 3D species distributions; and by high uncertainty in model O2 projections in equatorial regions. A focus on these topics in future research will strengthen our confidence in assessing climate-change-driven losses of contemporary habitats across the global oceans.
Improved process representation of leaf phenology significantly shifts climate sensitivity of ecosystem carbon balance
Authors: Norton Alexander J. , Bloom A. Anthony , Parazoo Nicholas C. , Levine Paul A. , Ma Shuang , Braghiere Renato K. , Smallman T. Luke
Published: June 2023

Abstract. Terrestrial carbon cycle models are routinely used to determine the response of the land carbon sink under expected future climate change, yet these predictions remain highly uncertain. Increasing the realism of processes in these models may help with predictive skill, but any such addition should be confronted with observations and evaluated in the context of the aggregate behavior of the carbon cycle. Here, two formulations for leaf area index (LAI) phenology are coupled to the same terrestrial biosphere model: one is climate agnostic, and the other incorporates direct environmental controls on both timing and growth. Each model is calibrated simultaneously to observations of LAI, net ecosystem exchange (NEE), and biomass using the CARbon DAta-MOdel fraMework (CARDAMOM) and validated against withheld data, including eddy covariance estimates of gross primary productivity (GPP) and ecosystem respiration (Re) across six ecosystems from the tropics to high latitudes. Both model formulations show similar predictive skill for LAI and NEE. However, with the addition of direct environmental controls on LAI, the integrated model explains 22 % more variability in GPP and Re and reduces biases in these fluxes by 58 % and 77 %, respectively, while also predicting more realistic annual litterfall rates due to changes in carbon allocation and turnover. We extend this analysis to evaluate the inferred climate sensitivity of LAI and NEE with the new model and show that the added complexity shifts the sign, magnitude, and seasonality of NEE sensitivity to precipitation and temperature. This highlights the benefit of process complexity when inferring underlying processes from Earth observations and representing the climate response of the terrestrial carbon cycle.
Reconstructing tephra fall deposits via ensemble-based data assimilation techniques
Authors: Mingari Leonardo , Costa Antonio , Macedonio Giovanni , Folch Arnau
Published: June 2023

Abstract. In recent years, there has been a growing interest in ensemble approaches for modelling the atmospheric transport of volcanic aerosol, ash, and
lapilli (tephra). The development of such techniques enables the exploration of novel methods for incorporating real observations into tephra
dispersal models. However, traditional data assimilation algorithms, including ensemble Kalman filter (EnKF) methods, can yield suboptimal state
estimates for positive-definite variables such as those related to volcanic aerosols and tephra deposits. This study proposes two new ensemble-based data
assimilation techniques for semi-positive-definite variables with highly skewed uncertainty distributions, including aerosol concentrations and
tephra deposit mass loading: the Gaussian with non-negative constraints (GNC) and gamma inverse-gamma (GIG) methods. The proposed methods are applied to reconstruct the tephra fallout deposit resulting from the
2015 Calbuco eruption using an ensemble of 256 runs performed with the FALL3D dispersal model. An assessment of the methodologies is conducted
considering two independent datasets of deposit thickness measurements: an assimilation dataset and a validation dataset. Different evaluation
metrics (e.g. RMSE, MBE, and SMAPE) are computed for the validation dataset, and the results are compared to two references: the ensemble prior mean and
the EnKF analysis. Results show that the assimilation leads to a significant improvement over the first-guess results obtained from the simple
ensemble forecast. The evidence from this study suggests that the GNC method was the most skilful approach and represents a promising alternative for
assimilation of volcanic fallout data. The spatial distributions of the tephra fallout deposit thickness and volume according to the GNC analysis are
in good agreement with estimations based on field measurements and isopach maps reported in previous studies. On the other hand, although it is an
interesting approach, the GIG method failed to improve the EnKF analysis.
Leveraging Google's Tensor Processing Units for tsunami-risk mitigation planning in the Pacific Northwest and beyond
Authors: Madden Ian , Marras Simone , Suckale Jenny
Published: June 2023

Abstract. Tsunami-risk mitigation planning has particular importance for communities like those of the Pacific Northwest, where coastlines are extremely
dynamic and a seismically active subduction zone looms large. The challenge does not stop here for risk managers: mitigation options have multiplied
since communities have realized the viability and benefits of nature-based solutions. To identify suitable mitigation options for their community,
risk managers need the ability to rapidly evaluate several different options through fast and accessible tsunami models, but they may lack
high-performance computing infrastructure. The goal of this work is to leverage Google's Tensor Processing Unit (TPU), a high-performance hardware device
accessible via the Google Cloud framework, to enable the rapid evaluation of different tsunami-risk mitigation strategies available to all
communities. We establish a starting point through a numerical solver of the nonlinear shallow-water equations that uses a fifth-order weighted
essentially non-oscillatory method with the Lax–Friedrichs flux splitting and a total variation diminishing third-order Runge–Kutta method for
time discretization. We verify numerical solutions through several analytical solutions and benchmarks, reproduce several findings about one
particular tsunami-risk mitigation strategy, and model tsunami runup at Crescent City, California whose topography comes from a high-resolution
digital elevation model. The direct measurements of the simulation's performance, energy usage, and ease of execution show that our code could be a
first step towards a community-based, user-friendly virtual laboratory that can be run by a minimally trained user on the cloud thanks to the ease
of use of the Google Cloud platform.
INTEGRATION OF HBIM/GIS TO PRESERVE INFRASTRUCTURE HERITAGE ALONG THE CHINESE EASTERN RAILWAY
Authors: Xu J. , Garramone M. , Wang Y. , Scaioni M.
Published: June 2023

Abstract. The infrastructure heritage is the symbol of the highest standard of the technical construction and design methodologies of the Chinese Eastern Railway (CER). As an important component of the cultural heritage of the CER, their conservation hasn’t attracted more attention than the architectural heritage part. However, some heritage infrastructure components have been already demolished while others were threatened by urban expansion and natural degradation during the past hundred years. In this study, we have analysed structural features based on the original drawings and fieldwork for the reconstruction of the vanished and invisible parts of CER. HBIM will be used to support the conservation of the surviving elements. In addition, we collected geographical coordinates of the heritages using on-site GNSS records and Google Earth®. We propose a method to facilitate the preservation of this historical infrastructure by building a database that integrates HBIM and GIS, including information about historical data and the status quo. In this way, this database will not only be useful for planning purposes by the government and the conservation agencies, but also it will benefit the entire society and the public through its online display and information collection.
Impact of permeability evolution in igneous sills on hydrothermal flow and hydrocarbon transport in volcanic sedimentary basins
Authors: Rabbel Ole , Hasenclever Jörg , Galerne Christophe Y. , Galland Olivier , Mair Karen , Palma Octavio
Published: June 2023

Abstract. Sills emplaced in organic-rich sedimentary rocks trigger the generation and
migration of hydrocarbons in volcanic sedimentary basins. Based on seismic
and geological observations, numerical modeling studies of hydrothermal flow
around sills show that thermogenic methane is channeled below the intrusion
towards its tip, where hydrothermal vents nucleate and transport methane to
the surface. However, these models typically assume impermeable sills and
ignore potential effects of permeability evolution in cooling sills, e.g.,
due to fracturing. Here, we combine a geological field study of a volcanic
basin (Neuquén Basin, Argentina) with a hybrid finite-element–finite-volume method (FEM–FVM) of numerical modeling
of hydrothermal flow around a sill, including hydrocarbon generation and
transport. Our field observations show widespread veins within sills
composed of graphitized bitumen and cooling joints filled with solid bitumen
or fluidized shale. Raman spectroscopy indicates graphitization at
temperatures between 350 and 500 ∘C, suggesting fluid flow within the
intrusions during cooling. This finding motivates our modeling setup, which
investigates flow patterns around and through intrusions that become porous
and permeable upon solidification. The results show three flow phases
affecting the transport of hydrocarbons generated in the contact aureole:
(1) contact-parallel flow toward the sill tip prior to solidification, (2)
upon complete solidification, sudden vertical “flushing” of overpressured
hydrocarbon-rich fluids from the lower contact aureole towards and into the
hot sill along its entire length, and (3) stabilization of hydrocarbon
distribution and fading hydrothermal flow. In low-permeability host rocks,
hydraulic fracturing facilitates flow and hydrocarbon migration toward the
sill by temporarily elevating porosity and permeability. Up to 7.5 % of
the generated methane is exposed to temperatures >400 ∘C in the simulations and may thus be permanently stored as graphite in or
near the sill. Porosity and permeability creation within cooling sills may
impact hydrothermal flow, hydrocarbon transport, and venting in volcanic
basins, as it considerably alters the fluid pressure configuration, provides
vertical flow paths, and helps to dissipate overpressure below the sills.
Brief communication: Rapid  ∼  335  ×  106 m3 bed erosion after detachment of the Sedongpu Glacier (Tibet)
Authors: Kääb Andreas , Girod Luc
Published: June 2023

Abstract. Following the 130 ± 5 × 106 m3 detachment of
the Sedongpu Glacier, south-eastern Tibet, in October 2018, the Sedongpu
Valley, which drains into the Yarlung Tsangpo (Brahmaputra) River, underwent
rapid large-volume landscape changes. Between December 2018 and 2022 and in
particular during summer 2021, an enormous volume of in total
∼ 335 ± 5 × 106 m3 was eroded from the former
glacier bed, forming a new canyon of up to 300 m depth, 1 km width, and
almost 4 km length. The 2021 erosion peak happened through massive but still
gradual retrogressive erosion into the former glacier bed. Several rock–ice
avalanches of in total ∼ 150 ± 5 × 106 m3 added
to the total rock, sediment, and ice volume of over 600 × 106 m3 (0.6 km3) that has been exported from the basin since around 2017. The recent
erosion volumes at Sedongpu are by order of magnitude equivalent to the
average annual denudation volume of the entire Brahmaputra basin upstream of
the location where the river leaves the Himalayas. This high-magnitude
low-frequency event illustrates the potential for rapid post-glacial landscape
evolution and associated hazards that has rarely been observed and
considered at such high intensity so far.
Ich gestalte, ich lerne: Durch Visualisierungsgeleitetes Lehren und Lernen zu nachhaltigem Lernerfolg
Authors: Purgaj Jure , Albert Sabine
Published: June 2023

In the design field, the curricula of Europe’s universities and vocational schools aim to incorporate more research findings. This paper, therefore, explores the research question of how a sustainable transformation of scientific knowledge can be promoted in the practice of fashion design education. Results of an empirical study with experts from six European countries show the necessity to visually process fashion studies to promote sustainable learning. Based on these findings, the method of visualization-guided teaching and learning is developed and integrated into research-guided teaching, resulting in a new subject didactic concept.
CUIDADOS DE ENFERMAGEM NA PREVENÇÃO DE INFECÇÕES RELACIONADAS A CATETER DE DERIVAÇÕES DO LÍQUIDO CEFALORRAQUIDIANO
Authors: De Melo Rilâny Luize Anjos , Valença Camen Silvia Arraes de Alencar , Bandeira Andressa Ohana Reis , Costa Sara Maria dos Santos , Almeida Karine dos Santos , Furtado Betise Mery de Alencar Sousa Macau
Published: June 2023

Objetivo: buscar as evidências científicas sobre a assistência de enfermagem na prevenção de infecções relacionadas ao uso de derivação ventricular externa ou derivação lombar externa em pacientes internados em unidades de terapia intensiva. Métodos: revisão integrativa realizada nas bases bibliográficas MEDLINE, Web of Science, CINAHL e LILACS, utilizando descritores específicos. Artigos primários em inglês, português e espanhol, que abordaram a temática em estudo e publicados nos últimos cinco anos foram incluídos. Resultados: após aplicação dos critérios de elegibilidade, obteve-se 11 artigos que compuseram a revisão. Dentre os principais achados sobre a prevenção de infecção relacionada ao uso dos derivação ventricular externa ou derivação lombar externa encontrou-se: higienização das mãos, implementação de técnicas assépticas, uso de curativos oclusivos com clorexidina, verificação do líquido cefalorraquidiano e avaliação de sinais flogísticos. Conclusão: foi possível evidenciar neste estudo que algumas medidas efetivas podem ser implementadas para a prevenção de infecções.
Características y Trayectorias de las Mujeres que Experimentan Situaciones de Calle en Chile
Authors: Eissmann Ignacio
Published: June 2023

Este artículo busca contribuir al conocimiento sobre las experiencias de situación de calle de mujeres en Chile, abordando la pregunta sobre ¿Cuáles son las principales características de las experiencias de situación de calle de las mujeres en Chile? Para ello, se utiliza información secundaria del Ministerio de Desarrollo Social y Familia del Gobierno de Chile, actualizada al 31 de marzo de 2019. Se realizaron análisis descriptivos sobre las principales características demográficas y de la vida diaria de las mujeres en situación de calle, y dos modelos de regresión (logística y lineal) que buscan analizar las variables asociadas al tiempo que han experimentado situación de calle y la edad en que lo hicieron por primera vez. A partir de los resultados, se concluye que las variables asociadas a la edad pueden ser predictoras de cómo se van desarrollando las trayectorias de situación de calle de las mujeres.
Hipersexualización del personaje femenino en el anime: una mirada desde Latinoamérica. El caso Genshin Impact.
Authors: De Lima-Vélez Valeria , Puello-Martínez Danna , Mendoza-Curvelo Maira , Acevedo-Merlano Alvaro
Published: June 2023

El presente artículo aborda la representación de la mujer en el videojuego Genshin Impact, dicho juego se ha vuelto popular por su variedad de personajes femeninos, quienes son víctimas de la hipersexualización y la desigualdad de género que existe en la industria de los videojuegos. La metodología utilizada fue de corte cualitativo, implementando la etnografía virtual como herramienta para acercarnos a las experiencias de los sujetos de investigación. En ese sentido, durante el trabajo de campo llevado a cabo en el entorno digital del videojuego, se efectuó una observación participante, posteriormente consignada en el diario de campo (Autor, 2016). Los resultados muestran que los jugadores de Genshin Impact tienden a consumir Animes del tipo Shōjo y del tipo Shōnen, además de otros géneros; aunque no sea una opinión generalizada, señalan que es evidente la existencia de la hipersexualización de los personajes femeninos. Otros aseguran que el fanservice hace que los creadores elijan agregar material sexual simplemente por complacer a la audiencia. Algunas de las conclusiones evidencian que la representación de la mujer basada en la estética sexualizada del Anime ha hecho que muchos jugadores masculinos consideren que tienen derecho de tratar a las mujeres reales que encuentran en los chats de multijugador y otras plataformas como si fueran sus waifus.
Effect of Diabetes Mellitus on Symptomatic Improvement After Surgery for Benign Prostatic Hyperplasia in Patients With Lower Urinary Tract Symptom and its Relations With Prostatic Urethral Angulation
Authors: Jo Jung Ki , Kim Hwanik , Bang Woo Jin , Oh Cheol Young , Cho Jin Seon , Shim Myungsun
Published: June 2023

Purpose: To compare improvement of lower urinary tract symptoms (LUTS) due to benign prostatic hyperplasia in diabetic versus nondiabetic patients after transurethral resection of the prostate (TURP) or holmium laser enucleation of the prostate (HoLEP).Methods: The medical records of 437 patients who underwent TURP or HoLEP at a tertiary referral center from January 2006 to January 2022 were retrospectively analyzed. Among them, 71 patients had type 2 diabetes. Patients in the diabetic mellitus (DM) and non-DM groups were matched 1:1 according to age, baseline International Prostate Symptom Score (IPSS), and ultrasound measured prostate volume. Changes in LUTS were assessed at 3 months after surgery using IPSS and evaluated by categorizing patients according to prostatic urethral angulation (PUA; <50° vs. ≥50°). Medication-free survival after surgery was also investigated.Results: No significant differences were noted between the DM and non-DM groups in baseline characteristics except for comorbidities (i.e., hypertension, cerebrovascular disease, and ischemic heart disease, P=0.021, P=0.002, and P=0.017, respectively) and postvoid residual urine volume (115±98 mL vs. 76±105 mL, P=0.028). Non-DM patients showed significant symptomatic improvement regardless of PUA, while DM patients demonstrated improvement in obstructive symptoms only in those with large PUA (≥51°). Among patients with small PUA, DM patients had worse medication-free survival after surgery compared to controls (P=0.044) and DM was an independent predictor of medication reuse (hazard ratio, 1.422; 95% confidence interval, 1.285–2.373; P=0.038).Conclusions: DM patients experienced symptomatic improvement after surgery only in those with large PUA. Among patients with small PUA, DM patients were more likely to reuse medication after surgery.
A Randomized, Double-Blind, Placebo-Controlled, Bridging Study to Evaluate the Efficacy and Safety of Vibegron in Treating Korean Patients With Overactive Bladder
Authors: Shin Jung Hyun , Jeong Seong Jin , Kim Sun-Ouck , Oh Cheol Young , Chung Kyung Jin , Shin Dong Gil , Kim Tae Hyo , Kwon Joonbeom , Shin Ju-Hyun , Bae Woong Jin , Lee Kyu-Sung , Choo Myung-Soo
Published: June 2023

Purpose: Vibegron, a novel, potent β3 agonist, has been approved for clinical use in overactive bladder (OAB) treatment in Japan and the Unites States. We performed a bridging study to investigate the efficacy and safety of a daily 50-mg vibegron (code name JLP-2002) dose in Korean patients with OAB.Methods: A multicenter, randomized, double-blind, placebo-controlled study was conducted from September 2020 to August 2021. Adult patients with OAB with a symptom duration of more than 6 months entered a 2-week placebo run-in phase. Eligibility was assessed at the end of this phase and selected patients entered a double-blind treatment phase after 1:1 randomization to either the placebo or vibegron (50 mg) group. The study drug was administered once daily for 12 weeks and follow-up visits were scheduled at weeks 4, 8, and 12. The primary endpoint was the change in mean daily micturition at the end of treatment. The secondary endpoints included changes in OAB symptoms (daily micturition, nocturia, urgency, urgency incontinence, and incontinence episodes, and mean voided volume per micturition) and safety. A constrained longitudinal data model was used for statistical analysis.Results: Patients who took daily vibegron had significant improvements over the placebo group in both primary and secondary endpoints, except for daily nocturia episodes. The proportions of patients with normalized micturition and resolution of urgency incontinence and incontinence episodes were significantly higher in vibegron group than in the placebo. Vibegron also improved the patients’ quality of life with higher satisfaction rates. The incidence of adverse events in the vibegron and placebo groups was similar with no serious, unexpected adverse drug reactions. No abnormality in electrocardiographs was observed as well as no significant increase in postvoid residual volume.Conclusions: Once daily vibegron (50 mg) for 12 weeks was effective, safe, and well-tolerated in Korean patients with OAB.
Unravelling the Impact of Food Insecurity on the Prevalence of Double Burden of Malnutrition among Children of Pakistan
Authors: Sultan Rabia , Iram Afshan
Published: June 2023

Food insecurity is a major cause of double burden of malnutrition among children in developing world. Despite being self-sufficient, Pakistan contains 60% of food insecure population. Moreover, about half of under-five children are stunted and one-tenth are overweight. The coexistence of undernutrition and over nutrition among under-five children is not well investigated in the same household. This study unravels the impact of food insecurity on the prevalence of double burden of malnutrition among under-five children by employing 2018 Pakistan Demographic Health Survey data and hierarchical mixed effect logistic regression. A sample of 3,625 6-29 months old children was included. The results state that child food insecurity increases the risk of double burden (OR: 1.49, CI: 1.03-2.16) after adjusting for household and community level socioeconomic and demographic factors. Food security and nutrition programs should be targeted to prevent early childhood double burden of child malnutrition to avoid future productivity losses.
Transgender Rights in Pakistan: A Complete Study under the Constitution and Pakistan Law
Authors: Nawaz Nimra , Safdar Hussnain
Published: June 2023

The majority of Pakistan's people are Muslims, and the nation as a whole adheres to strict Islamic norms. Governments and societies alike have failed to protect transgender people's rights. With the help of human rights organisations, the transgender population in Pakistan is finally getting some attention, and the Transgender Persons Act, 2018 has just been passed by the Senate. As far back as 2009, the Highest Court in the land of Pakistan issued directions meant to protect the freedoms enjoyed by this group. The issue of "what next?" takes front stage. Positive stakeholder impressions of the Act assist generate public support, therefore tracking them is crucial for the law's long-term viability. Public opinion is only one of many variables that may influence the public policymaking process. Though the regulatory structure of Pakistan in regard to safeguarding the freedoms of transgender people remains in its nascent stage, the doors for potential legislation have recently opened in Pakistan, which will be beneficial in maintaining the liberties of a generally marginalised transgender belonging, as shown by the current research.
الاستخلاف وعلاقته بالعمران في القرآن الكريم
Authors:   دكتوراه في الدراسات الإسلامية وقضايا المجتمع المعاصر، دولة قطر, السادة مريم
Published: June 2023

تتلخص هذه الدراسة في بيان منهج القرآن الكريم في الاستخلاف وعلاقته بالعمران، من خلال دراسة مفهوم الاستخلاف في القرآن الكريم، وأنواعه، وشروطه، وتوضيح علاقة الاستخلاف بالعمران في القرآن الكريم. ومما لا شك فيه أن الاستخلاف يتقوى بالإيمان والتقوى والعمل الصالح، ويتراجع بالكفر، والشرك، والظلم، والفساد؛ ولذلك جاءت المنهجية القرآنية لتوافق بين الجانب النظري (العقل والفكر) والجانب التطبيقي (العمل)؛ حيث يعتبر جوهر العمران في القرآن الكريم وعي الإنسان حول سبب استخلافه في الأرض، أو أهمية وجوده فيها؛ مما يؤدي إلى تعزيز قواه العقلية والنفسية والبدنية نحو كيفية تطويره وتقدمه من أجل ممارسة خلافته في الأرض على النحو المذكور في القرآن الكريم، واستخدام الثروات التي أودعها الله جل في علاه لخدمة الإنسان؛ فهو مطالب باستغلال تلك الثروات بعلمه ومعرفته وتقدمه النظري والاستخدام الأمثل لقوته الإنتاجية، دون الإغفال عن الجانب المعنوي وقيم الروح والمادة، والذي يستطيع الإنسان من خلالها تحويل تلك الثروات والموارد الطبيعية إلى ما يخدم مجتمعه، وتزدهر من خلاله الدائرة الإنتاجية لمجتمعه الذي يعيش فيه. ولا يمكن ممارسة الفعل الاستعماري من غير مكوناته المتمثلة في الاستخلاف والتسخير؛ لذلك لا بد على الإنسان المستخلف أن يعمل وفق ما تقتضيه المنهجية القرآنية في قضيتي الاستخلاف والتسخير، وأن يعي مفهوم الاستخلاف، ويتعرف على ماهيته وحقيقته، ولا يغفل عن جوهر التسخير وأصله وأهدافه، التي ترمي إلى عمارة الأرض. وبناءً على ذلك ارتأيت تقسيم هذه الدراسة إلى مبحثين، أحدهما يبين مفهوم الاستخلاف في القرآن الكريم، والآخر يوضح علاقة الاستخلاف بالعمران في القرآن الكريم، في محاولة لتوضيح خيوط الفعل الاستعماري والبناء الحضاري. وكان من أهم النتائج التي تمخضت عن هذه الدراسة: عدم اقتصار العمران في القرآن الكريم على البناء المادي فحسب؛ بل يشمل العمران الروحي والوجداني، والمتمثل بالإيمان، والتحلي بمكارم الأخلاق.
فاعلية نظام الحوافز ودوره في تحسين جودة أداء العاملين (دراسة حالة شركة خدمات الملاحة الجوية بالرياض في المملكة العربية السعودية)
Authors:   دكتوراه في إدارة الأعمال، كلية إدارة الأعمال، جامعة لينكولن، ماليزيا, العويس لطيفة , غوش ابهيجيت ,   دكتوراه في إدارة الأعمال، كلية إدارة الأعمال، جامعة لينكولن، ماليزيا, شمسي محمد ,   دكتوراه في إدارة الأعمال، جامعة بورغوني، ديجون، فرنسا
Published: June 2023

هدفت الدراسة إلى التعرف على فاعلية نظام الحوافز ودوره في تحسين جودة أداء العاملين في شركة الملاحة الجوية بالرياض في المملكة العربية السعودية، وقد تمثلت إشكالية الدراسة في أنه يظهر في بعض الأحيان بوادر الملل الوظيفي عند العاملين أيا كان موقعهم او عملهم او مهمتهم، فيصبح الفرد متباطئاً متكاسلاً او مهملا، وكان لا بد من وجود وسيلة تقف عائقاً أمام هذا الملل او الروتين القاتل او الإهمال، وإن مبدأ التحفيز إحدى هذه الوسائل التي تعطي الدافع للعمل وتشعر الموظف بأهمية العطاء، وقد تم استخدام المنهج الوصفي التحليلي في هذه الدراسة، واستخدمت الدراسة أداة الاستبيان من أجل جمع المعلومات، وتكونت عينة البحث من 60 فردا من العاملين في شركة الملاحة الجوية بالرياض، وقد توصلت الدراسة وجود أثر إيجابي ومعنوي للحوافز المادية على أداء العاملين في المؤسسات قيد الدراسة، وبتأثير مقبول جدا، وهذا ما يعكس أهمية الجانب المادي بالنسبة لأفراد عينة الدراسة، والذين قد يكونون من أصحاب الدخول المنخفضة. للحوافز المعنوية أثر إيجابي ومعنوي على أداء العاملين في المؤسسات قيد الدراسة، وهذا ما يؤكد أهمية وقوف المؤسسة إلى جانب العمال في مختلف المناسبات الاجتماعية خاصة ما تعلق بالمساعدات والإعانات المالية التي تمنح وما لتأثير ذلك على نفسية ومعنويات الفرد، وقد أوصت الدراسة بضرورة أن يتم الاهتمام بالحوافز المادية وربط الراتب بجدول تكلفة المعيشة، وأن يتم منح ترقية استثنائية للموظفين وفق معايير موضوعية وسليمة، ودعم وتعزيز علاقات العمل الإيجابية بين الموظفين (الرسمية وغير الرسمية) وتوجيههم بما يتماشى مع أهداف الشركة.
GUIDED WRITING IN THE TEACHING TO WRITE ESSAYS
Authors:   KSU ", Derunova Y. ,   OSSH No. 2",   p. Zhelezinka, Pavlodar region, Republic of Kazakhstan, Suyunova Gulnar ,   Alkey Margulan Pavlodar Pedagogical University, Pavlodar, Republic of Kazakhstan
Published: June 2023

Abstract. The article is devoted to the study of the effectiveness of guided writing in teaching high school students to write essays in the first years after the transition to the updated content of secondary education. The relevance of the work is due to the importance of the language creative activity of students as one of the main means of understanding the world. The scientific novelty lies in the attempt made by the authors to create and experimentally test a system of tasks for teaching essay writing. The authors have identified the difficulties that Kazakh language teachers face when teaching schoolchildren to write essays in the essay genre. Among these difficulties is the lack of domestic educational and methodological literature aimed at teaching essay writing, and the insufficiently systematic nature of the work of language teachers in this direction. As a solution to the identified problems, the article proposes the use of the "Guided Writing" strategy and a set of tasks developed on its basis, presented in a series of author's video tutorials on the YouTube channel "Slovesnik". The article contains a theoretical substantiation of the proposed strategy, examples of tasks and the results of their testing. The study was conducted using theoretical (analysis of specialized literature) and empirical methods (pedagogical experiment, questioning). The main result of the study is the successful and effective implementation of the task system developed on the basis of the Guided Writing strategy into the practice of teaching essay writing. The results of the study presented in the article can be used by language teachers in the process of teaching the Russian language to high school students.Key words: guided writing, essay, algorithm, template, task, video tutorial, teaching, essay, text.
Práticas de cidadania entre os alunos do ensino médio.
Authors:   , Carla da Silva Rocha Eloísa
Published: June 2023

O presente estudo trata-se de uma pesquisa qualitativa cujo objetivo é investigar a representação social sobre Cidadania dos alunos do Ensino Médio e identificar a prática utilizada pelos alunos para a efetuação da mesma. A metodologia da pesquisa é do tipo exploratória, o estudo é comparativo, a coleta dos dados se desenvolveu através de aplicação de questionário de auto-aplicação com perguntas abertas e fechadas. O local de estudo foi a Escola Estadual de Ensino Fundamental e Médio Professor José Gonçalves de Queiroz, situada em Sumé-Pb. A amostra compõe discentes seriados em 1º, 2º e 3º anos do Ensino Médio Inovador, sendo coletada a amostragem em (01) turma de cada série. Como resultado da pesquisa, percebemos que as amostras apresentaram controvérsia no significado e entendimento do conceito, mesmo assim, a cidadania é considerada de fundamental importância para todos e essencial para manutenção da sociedade civil. Apesar disso, os entrevistados demonstram de forma geral um desentendimento do que a cidadania representa e quais os princípios fundamentais que envolvem a participação civil, bem como, quais ações correspondem a estes princípios. Além, dos alunos não terem ciência de como e através de que se tornam cidadãos, do mesmo modo, que os alunos não participam nem mostram interesse de participarem de movimentos sociais. Os resultados alcançados desvendam um campo de estudo ainda pouco explorado e, portanto, torna-se importante para a própria Educação, ao passo que permite ao aluno e unidade educacional uma maior representação do ensino, especialmente da disciplina de Sociologia.
MANAGEMENT OF THE DEVELOPMENT OF SINGLE-INDUSTRY TOWNS IN RUSSIA: PROBLEMS AND INVESTMENT OPPORTUNITIES (ON THE EXAMPLE OF THE CITY OF TOGLIATTI)
Authors:   Joint Stock Company «Institute  of Regional Economic Research», Samigulin R.R. , Osipov K.K. ,   Joint Stock Company «Institute  of Regional Economic Research»
Published: June 2023

This article presents an analysis of existing problems and prospects of development of single-industry towns in Russia on the example of Togliatti. The article highlights the issues associated with the high dependence of single-industry towns on one or more industrial sectors. It considers addressing the lack of alternative sources of employment, reduction in population and infrastructure, as well as inefficient use of territories and resources. The author of the article considers potential ways to develop monocities through economic diversification, tourism and infrastructure development Opportunities to attract investment to create a business-friendly environment are considered. Overall, the article aims to raise the problem of monocities development in Russia and provide recommendations for creating effective strategies for their development.