bluuebunny/crossref_metadata_2025 huggingface dataset:
Evaluating Urban Heat Islands Dynamics and Environmental Criticality in a Growing City of a Tropical Country Using Remote-Sensing Indices: The Example of Matara City, Sri Lanka
Authors: Jayasinghe Chathurika Buddhini , Withanage Neel Chaminda , Mishra Prabuddh Kumar , Abdelrahman Kamal , Fnais Mohammed S.
Published: December 2024

Urbanization has undeniably improved human living conditions but has also significantly altered the natural landscape, leading to increased Urban Heat Island (UHI) effects. While many studies have examined these impacts in other countries, research on this topic in Sri Lanka remains limited. This study aimed to evaluate the effects of changes in built-up areas (BAs) and Vegetation Cover (VC) on UHI and environmental criticality (EC) in Matara cityCity, Sri Lanka, utilizing Landsat data. This study employed the commonly used remote-sensing (RS) indices such as the land surface temperature (LST), the UHI Index, and the Environmental Criticality Index (ECI). Various techniques were utilized including supervised image classification, Urban–Rural Gradient Zone (URGZ) analysis, grid-based analysis, UHI profiles, and regression analysis. The results revealed that built-up areas increased by 12.21 km2, while vegetation cover decreased by 9.94 km2, and this urban expansion led to a 2.7 °C rise in mean LST over 26 years. By 2023, newly developed BA showed the highest LST and environmental criticality, with mean LST values ranging from 25 °C to 21 °C in URGZs 1 to 15 near the city center, and lower values of 15 °C to 16 °C in URGZs 40 to 47 further from the core. The correlation analysis highlighted a strong positive relationship between the NDBI and LST, underscoring the significant impact of BA expansion on LST. Consequently, high-density built-up areas are experiencing high environmental criticality. To minimize these effects, planning agencies should prioritize green urban planning strategies, particularly in high LST and environmental criticality zones. This approach can also be applied to other cities to assess the UHI and LST phenomena, with the goal of protecting the natural environment and promoting the health of urban dwellers.
Unveiling Sustainable Co-Creation Patterns in Entrepreneurial Ecosystems of Shanghai’s High-Density Urban Communities
Authors: Jiang Chenhan , Huang Rui , Huang Shengyu , Shen Tao
Published: December 2024

Communities in China’s high-density cities, like Shanghai, are evolving from traditional residential roles into vibrant centers of entrepreneurial innovation. This research delves into the development of community-supported entrepreneurial ecosystems (CSEEs) in the city, with a specific focus on the sustainable co-creation mechanisms facilitated by stakeholders, explored through a comparative study framework. By utilizing Kelly’s Repertory Grid Technique, 14 essential elements of co-creation are identified, which form the framework for classifying the cases into three distinct types. This study employs in-depth interviews and content analysis to analyze and contrast how these co-creation patterns are applied across cases representing each type. The results show that key factors, such as resource origins, the interaction between CSEEs and embedded communities, and participant selection strategies, significantly shape the variations in value co-creation mechanisms, processes, and outcomes. Recognizing the variety of co-creation models is crucial for enhancing both the vitality and efficiency of Shanghai’s CSEEs. Furthermore, this study offers valuable insights into managing co-creation efforts and predicting risks in similar contexts, contributing to the sustainable regeneration of urban areas through community-driven entrepreneurship and innovation.
Rethinking Biochar’s MRV Systems: A Perspective on Incorporating Agronomic and Organic Chemistry Indicators
Authors: Abu El Haija Karam , Santos Rafael M.
Published: December 2024

Biochar, produced through the pyrolysis of biomass and green waste, offers significant potential as a soil amendment to enhance soil health and sustainability in agriculture. However, the current Measurement, Reporting, and Verification (MRV) systems for biochar predominantly focus on carbon credits/offsets, neglecting crucial aspects related to its usability and suitability as a soil amendment on agricultural fields. Through an examination of recent findings, this perspective explores the integration of geochemical tracers, functional group (hydroxyl, carboxyl, phenolic, lactonic, etc.) analysis, and nutrient dynamics into MRV procedures/systems to create a more comprehensive framework. By examining the applicability of these indicators, this paper identifies key gaps and proposes a more robust MRV approach. Such a system would not only facilitate better assessment of biochar’s agronomic benefits but also guide its optimal use in various soil types and agricultural practices.
Hyperbolic Non-Polynomial Spline Approach for Time-Fractional Coupled KdV Equations: A Computational Investigation
Authors: Vivas-Cortez Miguel , Yousif Majeed A. , Mohammed Pshtiwan Othman , Lupas Alina Alb , Ibrahim Ibrahim S. , Chorfi Nejmeddine
Published: December 2024

The time-fractional coupled Korteweg–De Vries equations (TFCKdVEs) serve as a vital framework for modeling diverse real-world phenomena, encompassing wave propagation and the dynamics of shallow water waves on a viscous fluid. This paper introduces a precise and resilient numerical approach, termed the Conformable Hyperbolic Non-Polynomial Spline Method (CHNPSM), for solving TFCKdVEs. The method leverages the inherent symmetry in the structure of TFCKdVEs, exploiting conformable derivatives and hyperbolic non-polynomial spline functions to preserve the equations’ symmetry properties during computation. Additionally, first-derivative finite differences are incorporated to enhance the method’s computational accuracy. The convergence order, determined by studying truncation errors, illustrates the method’s conditional stability. To validate its performance, the CHNPSM is applied to two illustrative examples and compared with existing methods such as the meshless spectral method and Petrov–Galerkin method using error norms. The results underscore the CHNPSM’s superior accuracy, showcasing its potential for advancing numerical computations in the domain of TFCKdVEs and preserving essential symmetries in these physical systems.
Therapeutic Resolution of Pulmonary Arterial Hypertension (PAH) Using Natural Products
Authors: Osei-Wusuansa Maria , Mohammed Nura , Makanjuola Damilola , Habas Khaled , Sener Sila Ozlem , Assi Khaled H. , Nasim Rateep , Nawaz Sadaf , Gopalan Rajendran C. , Wright Colin W. , Nasim M. Talat
Published: December 2024

Pulmonary arterial hypertension (PAH) is a progressive and rare condition characterised by the occlusion of pulmonary arterioles, with clinical manifestations resulting from the cross-sectional area reduction of the small pulmonary arteries. The disease is driven by a combination of factors including vasoconstriction, thrombosis, inflammation, proliferation, and the obstructive remodelling of the pulmonary artery walls. Heterozygous mutations in the type II bone morphogenetic protein receptor (BMPR2) underlie the majority of the inherited and familial forms of PAH. Current evidence indicates that in PAH, the BMPR2-mediated-signalling is diminished and the TGFβ signalling is heightened. Even when managed with current therapeutic approaches, the disease eventually results in increased pulmonary vascular resistance, right heart failure, and premature death. Natural products act as vascular disease treatment agents and have been used in clinical practice following compelling clinical trials. The rationale for the selection of natural compounds derives from their multi-targeted approach and synergistic effects. Although novel medicines licenced by the FDA (USA) between 1981 and 2010, constitute approximately 34% natural products or derivatives of natural products, their potentials for the treatment of PAH are not fully explored. The objective of this review is to emphasise the significance of natural products in the therapeutic resolution of PAH.
Repurposing FDA-Approved Drugs Against Potential Drug Targets Involved in Brain Inflammation Contributing to Alzheimer’s Disease
Authors: Sharo Catherine , Zhang Jiayu , Zhai Tianhua , Bao Jingxuan , Garcia-Epelboim Andrés , Mamourian Elizabeth , Shen Li , Huang Zuyi
Published: December 2024

Alzheimer’s disease is a neurodegenerative disease that continues to have a rising number of cases. While extensive research has been conducted on Alzheimer’s disease in the last few decades, only a few drugs have been approved by the FDA for its treatment, and even fewer aim to be curative rather than manage symptoms. There remains an urgent need to understand disease pathogenesis, as well as identify new targets for further drug discovery. Alzheimer’s disease (AD) is known to stem from the build-up of amyloid beta (Aβ) plaques, as well as tangles of tau proteins. Furthermore, inflammation in the brain is known to arise from the degeneration of tissue and the build-up of insoluble material. Therefore, there is a potential link between the pathology of AD and inflammation in the brain, especially as the disease progresses to later stages, where neuronal death and degeneration levels are higher. Proteins that are relevant to both brain inflammation and AD, thus, make ideal potential targets for therapeutics; however, the proteins need to be evaluated to determine which targets would be ideal for potential drug therapeutic treatments, or ‘druggable’ targets. Druggability analysis was conducted using two structure-based methods (i.e., drug-like density analysis and SiteMap), as well as a sequence-based approach, SPIDER. The most druggable targets were then evaluated using single-nucleus sequencing data for their clinical relevance to inflammation in AD. For each of the top five targets, small molecule docking was used to evaluate which FDA approved drugs were able to bind with the chosen proteins. The top targets included DRD2 (inhibits adenylyl cyclase activity), C9 (binds with C5B8 to form the membrane attack complex), C4b (binds with C2a to form C3 convertase), C5AR1 (a GPCR that binds C5a), and GABA-A-R (the GPCR involved in inhibiting neurotransmission). Each target had multiple potential inhibitors from the FDA-approved drug list with decent binding infinities. Among these inhibitors, two drugs were found to be top inhibitors for more than one protein target. They were C15H14N2O2 and v316 (paracetamol), originally used to treat pain/inflammation for cataracts and relieve headaches/fever, respectively. These results provide the groundwork for further experimental investigations or clinical trials.
Low-Frequency PPM1D Gene Mutations Associated with Inferior Treatment Response to CD19 Targeted CAR-T Cell Therapy in Mantle Cell Lymphoma
Authors: Seipel Katja , Benninger Lynn , Bacher Ulrike , Pabst Thomas
Published: December 2024

Background/Objectives: Mantle cell lymphoma (MCL) represents a rare B-cell lymphoma subtype with rather high relapse rates. Somatic mutations in the PPM1D gene were shown to be associated with adverse outcomes in patients with diffuse large B-cell lymphoma (DLBCL) who received CD19 CAR-T-cell therapy with tisa-cel, which may also apply to mantle cell lymphoma receiving brexu-cel CAR-T-cells. Methods: In this study, we determined the prevalence of PPM1D mutations in peripheral blood cells of MCL patients before CAR-T-cell infusion and analyzed the impact of low-frequency PPM1D mutations on efficacy and safety aspects of brexu-cel CAR-T-cell treatment in the first 16 r/r MCL patients enrolled at Inselspital Bern. Results: The prevalence of low-frequency PPM1D gene mutations was 25%, with variant allele frequencies (VAF) of 0.011 to 0.099. Clinical response was analyzed in the PPM1D mutated (PPM1Dmut) vs. PPM1D wild-type (PPM1Dwt) groups with median progression-free survival of 1 versus 32 months (p = 0.07) and median overall survival of 1.5 vs. 27 months (p = 0.001). Conclusions: Our data suggest that low-frequency PPM1D gene mutations in peripheral blood cells may predict inferior outcomes in patients with mantle cell lymphoma treated with CAR-T-cell therapy.
The Mechanisms of Cadmium Toxicity in Living Organisms
Authors: Davidova Slavena , Milushev Viktor , Satchanska Galina
Published: December 2024

Cadmium (Cd) is a toxic metal primarily found as a by-product of zinc production. Cd was a proven carcinogen, and exposure to this metal has been linked to various adverse health effects, which were first reported in the mid-19th century and thoroughly investigated by the 20th century. The toxicokinetics and dynamics of Cd reveal its propensity for long biological retention and predominant storage in soft tissues. Until the 1950s, Cd pollution was caused by industrial activities, whereas nowadays, the main source is phosphate fertilizers, which strongly contaminate soil and water and affect human health and ecosystems. Cd enters the human body mainly through ingestion and inhalation, with food and tobacco smoke being the primary sources. It accumulates in various organs, particularly the kidney and liver, and is known to cause severe health problems, including renal dysfunction, bone diseases, cardiovascular problems, and many others. On a cellular level, Cd disrupts numerous biological processes, inducing oxidative stress generation and DNA damage. This comprehensive review explores Cd pollution, accumulation, distribution, and biological impacts on bacteria, fungi, edible mushrooms, plants, animals, and humans on a molecular level. Molecular aspects of carcinogenesis, apoptosis, autophagy, specific gene expression, stress protein synthesis, and ROS formation caused by Cd were discussed as well. This paper also summarizes how Cd is removed from contaminated environments and the human body.
Influence and Mechanism of Solid-Phase Particle Factors on Oil–Solid Separation of Oily Sludge Treated by Flotation Method
Authors: Wu Shuhui , Yao Xue , Wang Xiao , Yuan Wenyan , Li Qiuhong , Niu Xiaoyin , Ma Yanfei
Published: December 2024

The solid phase composition in oily sludge (OS) is a key factor affecting the oil–solid separation of OS. In this paper, the effects and mechanisms of solid-phase particle factors on the oil content of residue phase were investigated in order to improve the oil–solid separation efficiency. Flotation experiments were carried out on single-size sand and mixed-size sand OS consisting of three particle sizes at room temperature without adding flotation reagents. The effects of different-size particles as solid phase composition of OS and flotation parameter settings such as flotation temperature (Tp), flotation time (Tt), impeller speed (Rs) and liquid-solid ratio (L/OS) on the oil–solid separation efficiency were investigated. The experimental results showed that the oil content of residue phase decreased with the increasing of solid-phase particle size for single-size sand OS, and the optimal flotation conditions were Tp of 50 °C, Tt of 25 min, Rs of 1450 r/min and L/OS of 12:1. The oil–solid separation was more pronounced for mixed-size sand OS with a complex particle composition, while different particle compositions of the solid phase in OS promoted oil–solid separation. Scanning electron microscopy (SEM) and Fourier-transform infrared spectroscopy (FT-IR) characterisation of OS before and after flotation confirmed the relative advantage of coarse particle OS in the oil–solid separation process. The classical first-order model was well fitted to the flotation kinetic process of single-size sand and mixed-size sand OS. The response surface methodology (RSM) method was used to determine the Rs as the main control factor of the flotation process, and the oil content of residue phase in mixed-size sand OS was optimised to 2.63%. This study provides important process parameters and theoretical basis for the efficient treatment of OS.
Sustainable Management of an Urban Green Space in a Papua New Guinean City: Accessibility, Use and Preferences
Authors: Ezebilo Eugene Ejike
Published: December 2024

Urban green spaces provide recreation opportunities that contribute to physical wellbeing, health, and social wellbeing. However, managing green spaces to promote access and use for recreation and at the same time meet the preferences of visitors is often challenging, especially in developing countries. Using Port Moresby Nature Park (PMNP) in Papua New Guinea as a case study, the objective of this study was to examine visitors’ perceptions of how to manage the park to improve its use for recreation, perceptions of acceptable user fees and preferences for nature types and recreation amenity alternatives. Data were obtained using interviews with 295 visitors to PMNP, of which 291 responses was valid for this study. The data were analysed using descriptive statistics and a multinomial logit regression marginal effect model. The results showed that PMNP can be improved by constructing more toilets, providing more benches at strategic positions, providing water fountains, expanding the children’s playgrounds and training more PMNP staff in customer care. A picnic area was the most preferred and an area containing the Papuan hornbill was the least preferred. On average, the visitors would pay 35% more than the park user fee. A recreation amenity associated with reptiles and birds of paradise was the most preferred and an amenity with only reptiles was the least preferred. Multinomial logit regression model results revealed that preferences for recreation amenity alternatives were influenced by demographic characteristics, the nature type visited, recreation activities, the level of the park user fee, and the time spent at and distance of the interviewees’ dwelling to PMNP. The most important explanatory variables associated with the choice of each of the recreation amenities as reflected by marginal effects include the use of a children’s playground for recreation, grilling and partying during recreation, engagement in walking in natural areas during recreation, the use of animal-dominated areas during recreation and the use of picnic areas during recreation. These findings will assist park managers in making informed decisions by considering visitors’ preferences, the affordability of the park user fee and how to improve an urban green space in a sustainable manner.
Analysis of Household Waste Generation and Composition in Mandalay: Urban–Rural Comparison and Implications for Optimizing Waste Management Facilities
Authors: Win Khin Zaw , Yabar Helmut , Mizunoya Takeshi
Published: December 2024

Data on waste generation and composition are fundamental for effective waste management and can vary over time. Assessing the allocation of waste management facilities is also important to improve the entire waste management system, including land management. A survey conducted among 108 households in both urban and rural areas across six townships analyzed the waste generation and physical composition in Mandalay, highlighting the current trends relating to waste. Concurrently, data on current waste management facilities were gathered. The average waste generation is 0.84 kg/person/day, with urban areas producing 0.91 kg/person/day and rural areas 0.37 kg/person/day. The per capita waste generation rate reported in this study exceeds those in most previous studies conducted in Mandalay up to 2020, as well as the national average and that of most cities in Myanmar. Organic waste constitutes most of the physical composition, accounting for 82.3%, followed by plastic waste (10.7%), paper and cardboard (3.2%), glass (0.9%), metal (0.8%), leather and fabric (0.4%), and other waste (1.7%). Rural areas produce a higher percentage of most types of waste compared with urban areas, except for organic waste. Surprisingly, urban areas produce waste with a higher organic composition compared with rural areas. The percentage of organic waste was found to be higher than in previous studies conducted in Mandalay and other cities. Proper management of organic waste could significantly reduce the burden on waste management. In order to achieve this goal, this study proposes several viable strategies for optimizing solid waste management in Mandalay. The current location of waste management facilities reflects the efficiency of waste management and accessibility. However, there are concerns about this and improvements are necessary. These can be achieved by optimizing the placement of waste management facilities and enhancing the efficiency of the collection and transportation sector.
An RNN-CNN-Based Parallel Hybrid Approach for Battery State of Charge (SoC) Estimation Under Various Temperatures and Discharging Cycle Considering Noisy Conditions
Authors: Nazim Md. Shahriar , Rahman Md. Minhazur , Joha Md. Ibne , Jang Yeong Min
Published: December 2024

With the increasing use of lithium-ion (Li-ion) batteries in electric vehicles (EVs), accurately measuring the state of charge (SoC) has become crucial for ensuring battery reliability, performance, and safety. In addition, EVs operate in different environmental conditions with different driving styles, which also cause inaccurate SoC estimation resulting in reduced reliability and performance of battery management systems (BMSs). To address this issue, this work proposes a new hybrid method that integrates a gated recurrent unit (GRU), temporal convolution network (TCN), and attention mechanism. The TCN and GRU capture both long-term and short-term dependencies and the attention mechanism focuses on important features within input sequences, improving model efficiency. With inputs of voltage, current, and temperature, along with their moving average, the hybrid GRU-TCN-Attention (GTA) model is trained and tested in a range of operating cycles and temperatures. Performance metrics, including average RMSE (root mean squared error), MAE (mean absolute error), MaxE (maximum error), and R2 score indicates the model is performing well, with average values of 0.512%, 0.354%, 1.98%, and 99.94%, respectively. The proposed model performs well under both high and low noise conditions, with an RMSE of less than 2.18%. The proposed hybrid approach is consistently found to be superior when compared against traditional baseline models. This work offers a potential method for accurate SoC estimation in Li-ion batteries, which has an important impact on clean energy integration and battery management systems in EVs.
Trends in the formation of Russian style in domestic advertising and possibilities for its development
Authors:   College, Moscow University for the Humanities, Sheryshova Lyubov Sergeevna
Published: December 2024

The article discusses the issues of reviving the Russian style in advertising and solutions
for advertising media. The author shows that advertising, which has accompanied people
for thousands of years, is currently a signifi cant part of mass culture. Advertising, just
like art, appeals to the emotional sphere of an individual, infl uencing him through vivid,
sensual images. The aesthetic and hedonic functions inherent in advertising and the infl
uence of advertising communications on the values and life attitudes of the audience
allow us to classify it as a type of artistic activity. Modern advertising is one of the recognized
forms of art. The article shows a long way that advertising has come, how many
amazing and extraordinary discoveries there have been, and how many original fi ndings
are actively used by modern advertising. The huge reach of the advertising audience
makes it possible to use advertising as a message that shapes certain values and traditions
of the cultural national code. The study of advertising in such a context acts as an
active educational tool, as a means of forming national self-awareness.
The current state of chironomid reserves in the reservoirs of the Altai territory in 2023
Authors:   Altai Branch of FGBNU “VNIRO” (AltayNIRO), Russia, Barnaul, Ronzhina T.O. , Surkov D.A. ,   Altai Branch of FGBNU “VNIRO” (AltayNIRO), Russia, Barnaul
Published: December 2024

A large number of brackish lakes with different levels of hydrobiont development are located on the territory of the Altai Territory. Chironomids in such lakes are the dominant group of zoobenthos and serve as a valuable object of industrial fishing. In connection with the economic use of
commercial aquatic organisms, there is a need to assess their reserves. The
paper presents the results of studies of chironomid reserves in 15 brackish lakes of the Altai Territory in 2023. The article provides data on the main characteristics of the habitat of chironomids. An assessment of the ecological state of the lakes is given. The size and weight characteristics of chironomid communities from different reservoirs are given. Using the example of
three model lakes, the taxonomic composition and the proportion of commercial species in these communities are determined. The average annual biomass of chironomids in the lakes of the Altai Territory in 2023 varies from 0.1 to 18.6 g/m². There is a large variation in the size and weight composition of chironomid communities in different lakes of the Altai Territory. According
to spring observations, the length of chironomids ranged from 3.1 to 27.0 mm, weight from 0.2 to 88.8 mg. From 2 to 6 chironomid taxa have
been found in the Bulatovo, Tomskoye and Korostelevskoye lakes as part of
the community. The proportion of species of commercial interest (Chironomus spp.) in the chironomid lake community ranged from 35 to 60% of the total population and from 80 to 91% of the total biomass. The total reserves of chironomides in the lakes of the Altai Territory in the period 2023 amounted
to 270 tons. Over the long-term period (2015–2022), total reserves range from 48.9 to 81.1 tons by year, with an average catch of 16.1 tons.
Amino acid composition of different sources of protein feed for aquaculture
Authors:   Don State Technical University, Russia, Rostov-na-Donu, Rudoy D.V. , Tkacheva I.V. ,   Don State Technical University, Russia, Rostov-na-Donu, Oganisyan M.M. ,   Don State Technical University, Russia, Rostov-na-Donu, Babajanyan A.S. ,   Don State Technical University, Russia, Rostov-na-Donu, Doroshenko V.A. ,   Don State Technical University, Russia, Rostov-na-Donu, Yarontovsky V.E. ,   Don State Technical University, Russia, Rostov-na-Donu
Published: December 2024

Properly formulated feed helps increase the profitability of
aquaculture production and achieve high quality products. In addition, it
is important to take environmental aspects into account when producing
compound feeds for aquaculture. It is necessary to use ingredients that do
not harm the environment and do not pollute water. Production processes
should also be optimized to reduce waste and maximize the use of all feed
components. With the development of technology and scientific research
in the field of aquaculture, new methods and solutions are emerging to improve
the quality of feed. For example, adding probiotics and antioxidants
can boost fish immunity and improve their growth. It is also important to
take into account the characteristics of the digestive system of each type of
fish when creating compound feeds to ensure optimal absorption of nutrients.
In general, the quality of feed plays an important role in the successful
development of aquaculture production. Continuous improvement of feed
composition and production technologies helps improve production efficiency
and ensure high productivity. The article examines the amino acid
composition of various protein sources used in aquaculture feeds, such as
fishmeal, black soldier fly larvae, vegetable protein concentrate, and provides
a brief description of the amino acids necessary for the fish body. During
the study, it was revealed that different types of protein sources contain
different amounts of essential amino acids necessary for adequate nutrition
of fish. Studying and comparing the amino acid composition of different
protein sources allows us to optimize feed for aquaculture, providing fish
with all the necessary nutrients for their health and rapid growth.
Decapsulation of artemia cysts (Artemia sp.) using different versions of sodium hypochlorite solutions (NaOCL)
Authors:   All-Russian Research Institute of Integrated Fish Farming, branch of the Federal State Budgetary Institution Federal Research Center VIZh named after L.K. Ernst, Russia, Moscow region, Vorovskogo settlement, Shishanov G.A. , Lippo I.E. ,   All-Russian Research Institute of Integrated Fish Farming, branch of the Federal State Budgetary Institution Federal Research Center VIZh named after L.K. Ernst, Russia, Moscow region, Vorovskogo settlement
Published: December 2024

The article describes the technology of Artemia decapsulation, its
features and external factors affecting the efficiency of hatching with subsequent
use as a feed composition. Artemia nauplii and its eggs, due to their
high nutritional value and high digestibility in the digestive tract, are widely
used in growing sturgeon larvae and other fish species. Artemia decapsulation
is one of the most important factors in the transition of fish larvae
to active feeding, in this regard, it is very important to select the optimal
decapsulation conditions, the composition of chemical reagents, temperature
and light conditions. The decapsulation process is a chemical process
of removing the hard shell that surrounds the Artemia embryo. The procedure
involves hydration, during which the outer shell is removed, can be carried
out with a number of solutions: sodium hydroxide, sodium carbonate,
sodium hypochlorite, hydrochloric acid. However, they all show different
availability and efficiency in decapsulation. The most common is the use
of sodium hypochlorite solutions, but they do not show stable results, since
the process of decapsulation and hatching of nauplii from cysts depends on
many factors. The aim of the work was to study the methods of decapsulation
of Artemia eggs for their use as a starter feed when transferring to active
feeding and feeding of sturgeon larvae. As a result of the experiments,
a technology for incubating Artemia eggs in accessible conditions without
the use of professional equipment was developed. Cysts are incubated in
aerated Weiss apparatuses, under constant illumination, in a volume of 7
liters of water, at a concentration of: NaCl — 30%, artemia cysts 3 g/l, water
temperature — 28 °С. The cysts are decapsulated without soaking, with
2.5% NaOCl solution with a total volume of 300 ml (21 g of dry cysts + 150
ml of water + 150 ml of NaOCl) for 4–5 minutes.
Estudiantes del idioma italiano con trastornos del lenguaje: Un estudio de caso
Authors: Tolentino Quiñones Hermis
Published: December 2024

Durante la pandemia de COVID-19, muchas instituciones educativas adoptaron clases remotas, lo que permitió la participación de estudiantes con habilidades diversas. Este estudio analiza el caso de tres estudiantes peruanos de italiano con trastornos del lenguaje en un instituto de idiomas. El objetivo fue comprender su proceso de inclusión en la educación remota durante la pandemia. La investigación, de enfoque cualitativo y diseño de estudio de casos, incluyó entrevistas semiestructuradas a estudiantes con labio leporino, paladar hendido y tartamudez, así como a sus docentes y al coordinador académico. Los resultados evidenciaron que los estudiantes perciben una carencia de políticas inclusivas en la institución, al no registrarse ni realizarse un seguimiento específico de sus necesidades. No obstante, las estrategias didácticas de los docentes y el contexto de educación remota contribuyeron positivamente al desarrollo de sus habilidades lingüísticas y sociales.
Deserción estudiantil en tiempos de pandemia en una universidad intercultural
Authors: Montes Nieto Petronia , Cáceres Ugarte Jorge , Pumacachua Ramos Augusto , Huamán Rojas Rudy Tomás
Published: December 2024

La pandemia de COVID-19 intensificó la deserción estudiantil en la educación universitaria debido a múltiples factores. Este estudio tuvo como objetivo identificar las causas de la deserción en una universidad intercultural durante la pandemia. Se empleó un enfoque cuantitativo, no experimental y descriptivo, utilizando datos del 100 % de los estudiantes desertores entre los semestres 2019-1 y 2021-1. Se analizaron factores de residencia, rendimiento académico, condiciones socioeconómicas, aspectos individuales e institucionales. Los resultados revelaron que el 67.39 % de los desertores provenían de áreas rurales, el 45.65 % presentó rendimiento académico regular, el 28.26 % señaló problemas de conectividad y aumento de gastos, el 28.26 % mencionó motivos familiares y el 26.09 % identificó la falta de apoyo docente o tutor como causas principales. El semestre 2021-1 registró la mayor deserción (66.46 %). Se concluye que superar estas dificultades requiere cambios en las políticas educativas y sociales, así como innovaciones en las relaciones entre docentes y estudiantes para abordar futuras crisis
Trabajo en equipo y competencias digitales en el desempeño docente
Authors: Cuellar-Quispe Sergio , Félix-Benites Edwin Daniel , Villa-Calderón Adonías Julia , Aguilar-Ozejo Janet , Villafuerte Álvarez Carlos
Published: December 2024

Las instituciones educativas constituyen los espacios indicados para desarrollar la ciencia y tecnología a través de la investigación. El objetivo de la investigación fue describir la influencia del trabajo en equipo y las competencias digitales en el desempeño docente en una institución educativa pública de la provincia de Andahuaylas. La metodología estuvo enmarcada dentro del paradigma positivista, no experimental, correlacional causal; asimismo considero una población censal de 60 docentes, donde la técnica empleada fue una encuesta. Los resultados demuestran que la variable competencias digitales presentan una varianza de 0.568; mientras que la variable el trabajo en equipo evidencia un 0.465 (p> 0.05). Se concluye que existe una influencia alta de ambas variables; según el R2 de Nagelkerke, el trabajo en equipo y competencias de desempeño.
Las TIC y competencias investigativas en el logro de aprendizaje
Authors: Chipana Rodríguez Virginia Nieves , Ochoa Cuya Ricardo
Published: December 2024

El objetivo del estudio fue determinar la incidencia de las tecnologías de la información y la comunicación (TIC) y las competencias investigativas (CI) en el logro de aprendizaje (LA). Se empleó un enfoque cuantitativo con un diseño no experimental, correlacional-causal, y una muestra de 108 estudiantes seleccionados por conveniencia. Se aplicaron instrumentos específicos para medir las variables independientes (TIC y CI) y la variable dependiente (LA). Los resultados indicaron que las TIC y las CI tienen una incidencia significativa en el LA, según un modelo logístico (X² = 45,747; p < 0,001). El modelo Pseudo R², basado en el coeficiente de Cox y Snell, explicó el 34,5 % del desarrollo del LA; el modelo de Nagelkerke indicó un 36,9 %, y el coeficiente de McFadden reflejó un 15,5 %. Se concluye que existe una incidencia moderada de las TIC y las CI en el LA de los estudiantes.
Padrão de paridade entre trabalhadoras rurais e associação com fatores sociodemográficos
Authors: Dias Ana Cleide da Silva , Triaca Livia Madeira , Dos Santos Iraneide Nascimento , Dos Santos Romário Correia , Gusmão Maria Enoy Neves
Published: December 2024

Objetivo: Analisar a paridade entre mulheres trabalhadoras rurais e sua associação com fatores sociodemográficos. Metodologia: Estudo transversal com 346 mulheres trabalhadoras rurais em Pernambuco/Brasil. Utilizou-se o questionário da Pesquisa Nacional de Saúde para verificar características sociodemográficas e dados sobre número de filhos. Resultados: A maioria das mulheres tem entre 23-27 anos (25%), ensino fundamental (34%) e cor da pele não branca (88%). Houve diferenças estatisticamente significativas na fecundidade para idade (p<0.01), grau de instrução (p<0,10) e idade da primeira gravidez (p<0.01). Na análise ajustada com variáveis demográficas e socioeconômicas, idade e grau de instrução apresentaram associação significativa com número de filhos. Com adição das variáveis reprodutivas, houve associação significativa apenas para os vários tipos: primeira gravidez, primeira gravidez e método contraceptivo. Conclusão: Idade, idade da primeira gestação e grau de instrução podem ter relação com os níveis de paridade em trabalhadoras rurais.
ABSTRACT
Objective: Analyzing parity among female rural workers and its association with sociodemographic factors. Methodology: A cross-sectional study with 346 rural women workers in Pernambuco/Brazil. The National Health Survey questionnaire was used to verify sociodemographic characteristics and data on the number of children. Results: Most women are between 23-27 years old (25%), have primary education (34%) and non-white skin color (88%). There were statistically significant differences in fertility for age (p<0.01), education level (p<0.10) and age at first pregnancy (p<0.01). In the adjusted analysis with demographic and socioeconomic variables, age and level of education were significantly associated with the number of children. With the addition of reproductive variables, there was a significant association only for the various types: first pregnancy and contraceptive method. Conclusion: Age, age at first pregnancy and level of education may be related to parity levels in female rural workers.
A atuação do enfermeiro na especialidade de cirurgia plástica: relato de experiência
Authors: Rodrigues dos Santos Thiago , Fernandes da Silva Claudilene , Ribeiro de Faria Luciane
Published: December 2024

Objetivo: Relatar a experiência do acadêmico de enfermagem em centro cirúrgico especializado em cirurgias plásticas. Metodologia: Estudo descritivo, do tipo relato de experiência, realizado por meio da observação da atuação de enfermeiras no Setor de Dermatologia e Cirurgia Plástica, Centro Cirúrgico e Unidade de Internação de um hospital privado de Juiz de Fora, Minas Gerais, entre setembro de 2021 a janeiro de 2022. Resultados: A experiência proporcionou uma imersão nas práticas assistenciais e operacionais do setor. O estagiário acompanhou etapas do processo cirúrgico, desde a recepção e avaliação pré-operatória até os cuidados pós-operatórios. Bem como, auxiliou em atividades gerenciais, de controle de materiais, entre outras. Desenvolveu habilidades interpessoais e técnicas, ressaltando a importância do trabalho colaborativo na segurança do paciente. Conclusão: O estágio foi fundamental para o desenvolvimento profissional, evidenciando o papel crucial do enfermeiro na assistência perioperatória e a necessidade de formação contínua na área de cirurgia plástica.
ABSTRACT
Objective: To report the experience of a nursing student in a surgical center specializing in plastic surgery. Methodology: Descriptive study, of the experience report type, carried out by observing the work of nurses in the Dermatology and Plastic Surgery Sector, Surgical Center and Inpatient Unit of a private hospital in Juiz de Fora, Minas Gerais, between September 2021 to January 2022. Results: The experience provided an immersion in the sector's care and operational practices. The intern followed stages of the surgical process, from reception and pre-operative assessment to post-operative care. As well as, he assisted in management activities, material control, among others. Developed interpersonal and technical skills, highlighting the importance of collaborative work in patient safety. Conclusion: The internship was fundamental for professional development, highlighting the crucial role of nurses in perioperative care and the need for continuous training in the area of ​​plastic surgery.
Repercussões do processo migratório transfronteiriço na vida familiar: protocolo de revisão sistemática com metassíntese
Authors: da Luz Mateus Souza , Bordin Vanessa , Marcon Sonia Silva , Sanguino Gabriel Zanin , Vieira Viviane Cazetta de Lima , Barreto Mayckel da Silva
Published: December 2024

Objetivo: apresentar o protocolo de uma revisão sistemática que buscará sintetizar as melhores evidências qualitativas disponíveis sobre as repercussões do processo migratório transfronteiriço na vida familiar. Critérios de Inclusão: estudos qualitativos e interpretativos que se baseiam nas experiências das pessoas e famílias afetadas pelo processo migratório transfronteiriço internacional. Método: revisão sistemática com metassíntese. Os documentos serão identificados no primeiro semestre de 2024, nas bases de dados: PUBMED/Medline; LILACS; PsycInfo; SCOPUS; CINAHL e Social Science Citation Index. Também serão consultadas bases de literatura cinzenta. Após identificação e elegibilidade, os estudos serão avaliados quanto à qualidade metodológica e as informações pertinentes serão sistematicamente registradas e analisadas.
ABSTRACT
Objective: to present the protocol of a systematic review that will seek to synthesize the best qualitative evidence available on the repercussions of the cross-border migration process on family life. Inclusion criteria: qualitative and interpretative studies based on the experiences of people and families affected by the international cross-border migration process. Method: systematic review with meta-synthesis. The documents will be identified in the first half of 2024, in the following databases: PUBMED/Medline; LILACS; PsycInfo; SCOPUS; CINAHL and Social Sciences Citation Index. Gray literature databases will also be consulted. Once identified and made eligible, the studies will be evaluated regarding their methodological quality and all relevant information will be systematically recorded and analyzed.
Kekudusan dalam Alkitab dan Nilai Praksisnya Bagi Orang Percaya Pada Masa Postmodern
Authors: Susanto Hery
Published: December 2024

Latar belakang artikel ini adalah kekudusan menjadi istilah yang dianggap absurd pada jaman postmodern karena sekularisasi di dunia membuat orang tidak lagi mementingkan kekudusan sebagai hal utama. Kekudusan mengalami degradasi makna yang pada mulanya sesuatu yang agung dan mulia dari Allah, berubah menjadi standar etika atau moralitas saja. Hal krusial di dalam penulisan artikel ini adalah apakah kekudusan manusia itu benar-benar tidak dapat dicapai? Apakah kekudusan itu hanya merupakan sebuah konsep ideal saja? Tujuannya adalah bagaimana orang percaya masa kini dapat menerapkan kekudusan itu dalam kehidupannya sehari-hari. Metode penelitian yang digunakan adalah studi literatur dengan pendekatan etimologis dan eksposisi Alkitab terkait dengan kekudusan. Batasan pembahasannya adalah makna kekudusan di dalam Alkitab dan implikasinya bagi orang percaya pada masa postmodern saat ini.  Hasil akhirnya ditemukan bahwa kunci kekudusan itu terwujud dalam keseimbangan relasi antara Tuhan dan sesama, menyadari bahwa kekudusan itu adalah anugerah, dan menjadikannya radar tentang hidup benar di hadapan Allah.
Serão os Polícias Municipais emocionalmente inteligentes para lidar com o stress ocupacional e evitar o Burnout?
Authors: Santos Fernanda Maria de Almeida , Lopes Paulo Jorge Alves , Rebelo Paulo Alexandre Pinto Portugal
Published: December 2024

Este artigo visa analisar como a Inteligência Emocional (IE) pode moderar os efeitos de duas variáveis de stress ocupacional (conflito de funções e ambiguidade de funções) nas dimensões da síndrome de Burnout, com base em entrevistas a 83 funcionários da Polícia Municipal de Oeiras. Os resultados mostram que tanto o conflito quanto a ambiguidade de funções estão positivamente relacionados à exaustão e despersonalização, e negativamente à realização pessoal, indicando que maiores níveis de conflito e ambiguidade aumentam o risco de Burnout. Apenas três dimensões da IE: compreensão das emoções dos outros, autoencorajamento e autocontrole diante de críticas, mostraram uma associação com esta síndrome. Além disso, a IE moderou o impacto do conflito de funções sendo mais pronunciado entre indivíduos com maior IE.
تأثير العدالة التنظيمية على اتجاهات الموظفين في دولة الكويت
Authors: العتيبي آدم غازي
Published: December 2024

تحاول هذه الدراسة التحقق من تأثير عدالة التوزيع وعدالة الإجراءات على الرضا الوظيفي والولاء التنظيمي من ناحية، وعلاقة الرضا الوظيفي بالولاء التنظيمي من ناحية أخرى، وشارك في هذه الدراسة عينة قوامها 520 موظفاً حكومياً في دولة الكويت. وتبين من نتائج الدراسة أن علاقة عدالة التوزيع والإجراءات أقوى مع الرضا الوظيفي منها مع الولاء التنظيمي. كما أن عدالة التوزيع تعد أفضل مؤشر للتنبؤ بالرضا الوظيفي، على حين كانت عدالة الإجراءات أفضل مؤشر دالّ على الولاء التنظيمي. ومن جانب آخر، كشفت نتائج هذه الدراسة أن متغير الرضا الوظيفي يفسر ما نسبته 29% من التباين الكلي في الولاء التنظيمي. وقد خلصت الدراسة أخيراً إلى طرح بعض التوصيات واقتراح بعض الموضوعات لدراسات مستقبلية.
العلاقة بين الهيكل المالي والأداء للشركات الخاضعة للضريبة
Authors: الشمري تركي بادي
Published: December 2024

يهدف هذا البحث إلى التعرف إلى العوامل المؤثرة في مستوى المديونية للشركات الكويتية الصناعية بوصفها شركات تعمل في ظل اقتصاد غير ضرائبي، مما يجعل هذه الدراسة مختلفة عن جميع الدراسات السابقة التي تعتمد الأثر الضريبي محدداً رئيساً لاستخدام الشركات للديون. وقد أكدت هذه الدراسة وجود علاقة بين أداء الشركة ومستوى المديونية، وذلك حسب تفسيرات نظرية الوكالة (جنسن ومكلنج 1976) فقط، وهي النظرية التي لاتعتمد على التفسير الضريبي لاستخدام الديون. كذلك كشفت هذه الدراسة أيضاً عن وجود علاقة مباشرة بين ملكية المستثمر المؤسسي وقرارات التمويل للشركات الصناعية الكويتية. بالإضافة إلى ذلك، فإن قرار التمويل أيضا له ارتباط وثيق بمستوى ربحية الشركة حجمها. ويجب التأكيد على أن صغر حجم العينة المستخدمة في الدراسة (بسبب عدم توافر المعلومات المطلوبة للتحليل) هو مؤشر دال على أن النتائج التي توصلت إليها ربما تعد مؤقتة ومرتبطة بزمن إجراء الدراسة.
التنبؤ بحركة المرور في قناة السويس باستخدام الشبكات العصبية
Authors: مصطفى محمد محمود , الرفاعي غالب عوض
Published: December 2024

على الرغم من أن قناة السويس هي من أهم الممرات المائية في العالم، فإن الدراسات التي استهدفت التنبؤ بحركة المرور فيها تكاد تكون منعدمة. والدراسة الحالية تستخدم كلاًّ من نماذج الانحدار الذاتي والمتوسطات المتحركة (نماذج بوكس -  جنكنز)، وكذلك نماذج الشبكات العصبية في التنبؤ بحركة المرور في قناة السويس. وقد تزايد في الآونة الأخيرة استخدام الشبكات العصبية في مجال التنبؤ Prediction والتصنيف Classification ، وهي من المجالات التي كانت تستخدم فيها نماذج الانحدار وغيرها من الأساليب الإحصائية التقليدية. والنماذج التي توصلت إليها هذه الدراسة تقدم لنا رؤية مفيدة فيما يتعلق بسلوك النقل البحري منذ إعادة افتتاح قناة السويس أمام حركة الملاحة العالمية عام 1975 بعد إغلاق دام ثمانية أعوام نتيجة للحروب العربية الإسرائيلية (1967-1973).
الدعم التنظيمي المدرك والأبعاد المتعددة للولاء التنظيمي
Authors: رشيد مازن فارس
Published: December 2024

استهدفت الدراسة بحث العلاقة بين مستوى الدعم التنظيمي المدرك والأبعاد الثلاثة للولاء التنظيمي: العاطفيّ، والمستمر، والمعياريّ، لعينة من موظفي المؤسسات العامة بمدينة الرياض. وأظهرت النتائج أنّ الدعم التنظيميّ المُدرك يرتبط ارتباطاً ذا دلالة إحصائية بالولاء العاطفيّ والمعياريّ، ولكن ارتباطه بالولاء التنظيميّ المستمر كان عكسياً.
التحليل الهيكلي والأداء للصناعات البتروكيماوية في الكويت
Authors: الصبيح غسان أحمد , السلمان مهدي حمزة
Published: December 2024

كان نمو الطاقة الإنتاجية في الصناعات البتروكيماوية مذهل في السنوات الخمس عشرة الأخيرة. ويبدو بأن هذا الاتجاه سوف يستمر لسنوات طويلة قادمة. ومع زيادة الاهتمام الدولي بسياسات التجارة الحرة، فإن أهمية قطاع الصناعات البتروكيماوية ستزداد بزخم أكبر، خاصة في دولة الكويت. قامت الدراسة بتحليل قطاع الصناعات البتروكيماوية في دولة الكويت، بالنسبة لإجمالي حجم الإنتاج وحجم العمالة خاصة. على أساس التمييز بين الشركات الصغيرة والكبيرة الحجم. وقد تم استخدم نموذج طوره كل من ديني وفوس جولوب لقياس الكفاءة الإنتاجية. أظهرت النتائج التجريبية أن الشركات صغيرة الحجم كانت ذات كثافة عمالية أكثر، كما أنها تستهلك كميات أكبر من الطاقة مقارنة بالشركات الصغيرة. كما تبين بأنها تمثل 95 بالمائة من إجمالي الشركات الصناعية في دولة الكويت. أظهرت النتائج كذلك بأن الإنتاجية العمالية في الشركات الصغيرة كانت منخفضة ومتناقصة. وفي الوقت نفسه بينت مؤشرات الأداء أن الشركات كبيرة الحجم كانت أكثر إنتاجية وكان إنتاجها بنسب أعلى فيما يخص المخرجات.