bluuebunny/crossref_metadata_2025 huggingface dataset:
ASSESSMENT OF ADULT YOUTHS’ PARTICIPATION IN AGRICULTURAL PRODUCTION AND ITS IMPACT ON EMPLOYMENT OPPORTUNITIES IN ZARIA, KADUNA STATE
Authors: Abbas Mahmud  , Kasim Mohammed Saad
Published: September 2024

This study assessed the adult youth’s participation in agricultural production and its impact on employment opportunities in Zaria, Kaduna state, Nigeria. Three specific objectives and three research questions were formulated. Descriptive survey design was adopted and population of the study was all youths participated in farming production in Zaria Birni Constituency. A sample of 60 adult youths was purposively selected from 3 wards out of 6 wards in Zaria Birni and its surrounding. Instrument used was a structured questionnaire with a four rating scale titled “Adult Youths Participation in Agricultural Production and its Impact on Employment Opportunity” (AYPAPIEO)”. It was validated by three senior researchers in the faculty of education Usmanu Danfodiyo University, Sokoto. Descriptive statistics (percentage, mean and standard deviation) was used to answer the research questions. The findings revealed that the adult youth in the study area participated actively in agricultural production to produce foods for their family and provide employment opportunity to their family, friend and community. The findings also revealed that the adult youth participated in the agricultural production because of the food security and to have other sources of income for the family. The findings of the study equally revealed that adult youth participation in agricultural production reduces the level of social vices. It was therefore recommended among others that government and non-governmental organizations should increase efforts to provide adult youth with easier access to land, credit facilities, and inputs such as seeds, fertilizers, and machinery. This can be achieved through targeted subsidy programs, low-interest loans, and land reform policies that prioritize youth engagement in agriculture.
KEY WORDS: Adult youths, Agricultural production, Employment opportunities
UBIQUITY OF WORKPLACE DIVERSITY AND INCLUSION FOR EMPLOYEE WELL-BEING
Authors: Prof. Radhika J  , Prof. Mahalakshmi
Published: September 2024

Building a sense of belonging in the workplace is essential for both organizational efficacy and employee well-being in a world that is progressively more interconnected and globalized. Through the perspectives of diversity, equality, and inclusion (DEI), this study explores the various facets entailed in developing such a culture. The study examines the effects of DEI initiatives on employee engagement, satisfaction, and productivity using both qualitative and quantitative research methods of analysis. Through extensive surveys and in-depth interviews with professionals from a range of industries, this study pinpoints critical tactics and industry best practices that businesses can use to improve DEI. The results demonstrate how important varied representation, fair policies, and inclusive leadership are in fostering a feeling of community among staff members. Additionally, the study examines the difficulties and impediments that organizations have when promoting DEI and provides workable methods to get past them.
KEYWORDS: Diversity, Equality, Inclusion, Wellbeing.
Climate change (Mal)adaptation in the Bangladesh’ Sundarbans – a Systematic Review
Authors: John Bjerg Geary  , Juergen Scheffran
Published: September 2024

Bangladesh is among the countries most vulnerable to climate change. This vulnerability stems not only from its exposure to climate change and intensified extreme weather events but also from the way adaptation policies and projects have been designed using a technocratic, top-down approach. As a result, much of the adaptation has led to negative consequences for certain groups—often the most vulnerable—who depend directly on nature for their livelihoods. This outcome, known as maladaptation, has been particularly pronounced. This paper conducts a systematic review of peer-reviewed literature since 2014, the year when maladaptation first gained significant attention in the IPCC’s fifth report. The goal is to assess the current state of research on climate change adaptation in Southwestern coastal Bangladesh, particularly around the Sundarbans, the largest contiguous mangrove forest in the world. The review aims to identify research gaps and discuss key lessons learned. Keywords used in the review include 'maladaptation', 'barriers to adaptation', 'ecosystem-based adaptation', and 'gender', as these concepts are all interrelated to some degree. The review highlights significant research gaps across all topics, as well as a geographical imbalance in the distribution of studies within the region. Given the prevalence of maladaptation in Bangladesh, it is crucial that more research focuses on this issue to gather insights and reduce the risk of maladaptation in future climate change adaptation projects in the country.
Visualization Method for Mesoscale Eddies Characteristics in Ocean Flow Fields Based on Variable Particle Systems
Authors: Zhang Taoye , Wang Ziqiang , HanWang  , Wen Luo  , Dongshuang Li
Published: September 2024

Visualization of ocean flow fields is a major area of interest in marine science. Existing visualization methods based on randomly generated particles tend to exhibit a uniform distribution. While this approach effectively represents ocean flow fields, it inadequately conveys the characteristic structures within the flow in an intuitive manner. Ocean eddies, as crucial components of ocean dynamics (Patrizio & Thompson, 2021), are key features in visualizing ocean flow fields. Mesoscale eddies, which contain 90% of the ocean's kinetic energy, play a vital role in transporting this energy. These eddies significantly influence local marine environments and are instrumental in understanding the kinetic energy of ocean flow fields, providing valuable insights for fields such as oceanography, meteorology, and climate research. The aim of this study is to establish a method based on variable particle systems. Initially, a feature set for mesoscale eddies and a parameter set for variable particles are defined. By mapping the feature set to the parameter set, we express the characteristic structure of mesoscale eddies dynamically. Using ocean flow field data, we demonstrate the method's ability to effectively highlight the characteristic structures of mesoscale eddies within the flow field through qualitative and quantitative evaluation metrics. By analyzing and visualizing ocean flow fields, we can gain a deeper understanding of their spatiotemporal evolution, thereby uncovering the patterns and regularities of their movement. This research approach not only facilitates the effective development, utilization, and sustainable management of marine resources but also aligns with the demands of digital ocean technology for visualizing marine spatial information.
Method for Solving the Pareto Multi-Stakeholder Stable Solution Set of Multi-Objective Optimization for Land-Sea Intermodal Transport
Authors: Qian Linxin , Ruan Yanting , Luo Wen
Published: September 2024

Intermodal transport involving both land and sea encompasses multiple stakeholders and objectives, often leading to mutually exclusive goals and discretely distributed optimal solutions. This complexity makes it challenging to generate stable intermodal transport schemes. To address this, the study proposes a method using Pareto correlation structure analysis to determine the stable solution set for multi-objective optimization in land-sea intermodal transport. By defining the Pareto solution space and employing dimensionality reduction and cluster analysis, a structured correlation model is constructed. This method utilizes projection and transformation operators based on stakeholder preferences to generate a stable Pareto solution set. Using the Shanghai-Qingdao intermodal transport as a case study, the Pareto solution set is generated through a multi-objective particle swarm optimization algorithm. Based on the preferences of various stakeholders, including consignors, carriers, and environmental departments regarding transportation objectives, a multi-stakeholder stable solution set is obtained. The results indicate that, compared to schemes derived through weighted summation, the transportation schemes constructed using the proposed method balance stakeholders' multi-objective requirements, improving overall stability by approximately 30% to 60%. This approach generates stable optimized candidate schemes, facilitating the management of complex intermodal transport scenarios and supporting the selection of multi-stakeholder optimization solutions.
Development and in vitro evaluation of bioprinted plasma-infused biocarriers for mesenchymal stromal cell delivery in musculoskeletal disorder treatment
Authors: Del Amo Cristina , Garrastachu Miguel Perez , Jaúregui Inés , J Alvarez Francisco , Andia Isabel
Published: September 2024

A meta-analysis revealed no advantage of surgical over non-surgical treatments, emphasizing the need for non-invasive methods, particularly for prevalent osteoarticular diseases like knee osteoarthritis. To enhance therapeutic efficacy, we developed a plasma-infused gelatin methacryloyl (GelMA) biocarrier loaded with bone marrow-derived mesenchymal stromal cells (BMSCs). These constructs were evaluated in vitro for their properties and paracrine interactions in non-inflamed and inflamed environments. GelMA infused with platelet-rich plasma (PRP) and platelet-poor plasma (FFP) were compared. Pristine GelMA was used as a control. Both PRP and FFP enhanced the proliferation and viability of BMSCs in biocarriers, promoting cell survival pathways while inhibiting necrotic and apoptotic events. Proteomic analysis showed no differences in BMSC behavior between PRP and FFP in the absence of inflammation (p = 0.550). However, both plasmas significantly modified cell behavior under inflammatory conditions (p = 0.001). PRP- and FFP-infused biocarriers activated ten key signaling pathways, including HIF-1a, neuroinflammation, and extracellular matrix turnover. PRP-specific pathways included IL-17, IL-6, and several growth factor signaling pathways. No significant differences in angiogenesis were linked to platelet dose (p = 0.079), but both PRP and FFP significantly enhanced angiogenesis compared to GelMA alone (p < 0.001 for PRP, p = 0.002 for FFP). FFP showed stronger angiogenesis than PRP under IL-1β treatment (p = 0.042). Plasma-infused biocarriers altered BMSC behavior in response to inflammatory cytokines compared to GelMA (p = 0.001). PRP specifically activated TGF-b signaling under IL-1b (Z=2.308, p-value 1.02E-35), which was not seen under TNF-a exposure. These findings suggest that PRP and FFP-infused biocarriers may offer promising improvements in regenerative therapies for inflammatory osteoarticular conditions like knee osteoarthritis.
Manajemen Strategik dalam Meningkatkan Mutu Pelayanan Kepegawaian pada Dinas Pendidikan Kota Solok
Authors: Riandani Ade , Syafwandi S , Pratama Eri , Andika Afri
Published: September 2024

Strategic Management plays an important role in improving the quality of personnel services at the Solok City Education Office. The aim of this research is to explore information regarding the implementation of strategic management, especially in the context of personnel services, as well as its impact on the quality of personnel services at the Solok City Education Office. This research uses a qualitative method with a case study approach, and data analysis is carried out using the Miles and Huberman Interactive analysis model. Research findings show that the Solok City Education Office implements strategic management in personnel services by referring to the Provincial RPJP and Solok City RPJMD. This process involves the stages of strategic planning, strategy implementation, and strategy evaluation. The quality of personnel services at the Solok City Education Office has experienced a significant increase after the implementation of strategic management, which can be proven by the fulfillment of the five main dimensions of service quality.
Research on the Influence of Thermal Decomposition of Magnesium Chloride Hexahydrate on the Preparation of Magnesium Oxide and Hydrated Magnesium Hydroxide
Authors: Wang Mei Jia , Li Meng , Bai Limei , Wang Qu , Ma Yuxin
Published: September 2024

Magnesium chloride hexahydrate is an important intermediate product in magnesite processing. In order to promote the efficient utilization of magnesite resources, based on the pyrolysis interval of magnesium chloride hexahydrate, the relationship between magnesium oxide with different physicochemical properties and the apparent properties of hydrated magnesium hydroxide was studied. The results show that the effect of temperature on magnesium oxide sintering is stronger than that of holding time. With the increase of calcination temperature and the extension of holding time of magnesium chloride hexahydrate, the calcined product magnesium oxide was sintered into large particle size with the characteristic particle size D50 of 33.89 μm. The crystal was distorted, the chemical activity deteriorated, and the color development time was up to 407 s. When hexahydrate magnesium chloride was calcined at 480 °C with 2 h, it decomposed almost completely. The product, magnesium oxide, consisted of uniformly distributed small coral rod-like particles with strong chemical reactivity and a color development time of 115 s. The particles were small and evenly distributed, with a characteristic particle size D50 of 1.36 μm, and the highest specific surface area reached 7.292 m2/g. The hydrated magnesium hydroxide particles had well-defined edges and corners, with a characteristic particle size D50 of 1.59 μm and a uniform particle size distribution.
Hacia una caracterización de los patrones y procesos de transformación de las áreas metropolitanas españolas
Authors: Aguilera-Benavente Francisco , Vergara-Fernández Cristian Andrés , Cuesta-Grande José Antonio
Published: September 2024

Los cambios experimentados por las áreas metropolitanas españolas tienen como expresiónespacial transformaciones en los patrones de ocupación del territorio, con motivo de la aparición denuevas formas de expansión urbana. Las métricas espaciales son un conjunto de variables del ámbitodisciplinar de la ecología del paisaje que permiten cuantificar y caracterizar las formas, tamaño y configuraciónde los fragmentos urbanos, pudiendo ser un instrumento útil para caracterizar patrones deocupación urbana y procesos de transformación de un patrón a otro. En este trabajo se presenta una clasificación multitemporal de las áreas metropolitanas españolas empleando para ello la cartografíaCORINE para el período 1990-2018 a partir de la identificación de diversos patrones espaciales, asícomo los procesos de transformación desde unos patrones de ocupación a otros. Los resultados muestranun importante cambio en los patrones, que tienden hacia formas más dispersas y fragmentadas.
Condiciones de habitabilidad en un Complejo Urbano de Buenos Aires: análisis del acceso a la vivienda adecuada en el marco de la “Causa Mendoza”
Authors: Zulaica Laura , Canestraro María Laura , Olivera Adriana B. , Rodríguez Claudia
Published: September 2024

El concepto de habitabilidad se vincula con las características y cualidades del espacio, entorno social y el ambiente que contribuyen a dar a la población una sensación de bienestar personal y colectivo. El presente trabajo analiza la habitabilidad en el Complejo Urbano Padre Mugica -CUPM- (Comuna 8, Buenos Aires). Dicho Complejo, construido en el marco de políticas habitacionales estatales de acceso a la vivienda en la Cuenca Matanza-Riachuelo, exhibe numerosas problemáticas sociales, sanitarias, ambientales y constructivo-edilicias. Parte de sus habitantes son relocalizados en el marco de una causa judicial de relevancia ambiental en Argentina, la “Causa Mendoza”. Partiendo del concepto de vivienda adecuada, se utiliza un enfoque multimétodo para abordar aspectos urbanos, habitacionales y jurídicos. La investigación deja en evidencia la existencia de herramientas legales y dispositivos institucionales. Sin embargo, las soluciones a las problemáticas son parciales y fragmentadas, incidiendo en la garantía del derecho a la ciudad.
Los usos impropios del suelo no urbanizable: la distribución territorial de las “Declaraciones de Interés Comunitario” de la Comunidad Valenciana (DIC)
Authors: Burriel-De-Orueta Eugenio L. , Zornoza-Gallego Carmen
Published: September 2024

La “Declaración de Interés Comunitario” (DIC) es una figura legal de la Comunidad Valenciana que permite, de manera excepcional y restrictiva, ubicar en suelo no urbanizable usos propios del suelo urbanizado. La distribución territorial de las DIC aprobadas se analiza –tanto en conjunto comosegún los diferentes tipos de actividades– a escala comarcal, aunque con frecuentes referencias a la escala local. El objetivo es conocer los factores explicativos de esa distribución. La estructura de tipos de DIC de las diversas comarcas ha permitido reconocer áreas territoriales con características similares.Las conclusiones confirman la hipótesis de una aplicación poco rigurosa de la normativa, porque con frecuencia se ha dado prioridad a los posibles beneficios económicos para ayuntamientos y promotores frente al interés general del mantenimiento de la función territorial del suelo no urbanizable.
Resistencia, lucha y participación ciudadana: el caso de la renovación urbanística de Vallcarca (Barcelona)
Authors: Benitez-Perez Laura Esther , Castrechini-Trotta Angela Armenia
Published: September 2024

En esta investigación se presentan los resultados de un estudio cuyo propósito fue conocer cómo los cambios urbanísticos en el barrio son percibidos y afectan la vida de sus residentes, al tiempo que activan comportamientos de participación frente a la intervención. Para ello se hicieron entrevistas semiestructuradas a los residentes del barrio de Vallcarca además de realizar observaciones participantes. El análisis de los datos recogidos evidenció una sensación de pérdida generalizada en los vecinos tanto de espacios públicos como de redes sociales, lo cual los ha llevado a querer recuperar un poco de esta identidad, aumentando la participación ciudadana en la toma de decisiones. También se comentan las implicaciones desde el punto de vista de las intervenciones urbanísticas así como de la gestión de la administración pública sobre el espacio público y la participación.
Sistema de Monitoreo Automatizado de Variables Ambientales en un Cultivo Acuapónico de Tilapia y Lechuga
Authors: Hernández-Sandoval Pedro , Castillo-Meza Hugo , Cruz-Urrea Laura Olivia , Guzmán-Dicochea Francisco Rodimiro , Mora-Sánchez José Ricardo , Bojórquez-Sauceda Jaime , Romero-Luque Ander Daniel , Váldez-Martínez David , Guzmán-Arredondo César Enrique
Published: September 2024

Desde hace mucho tiempo, la agricultura y la acuicultura han experimentado un progreso significativo, este no solo se ha limitado a las actividades prácticas, sino también en lo referente a la incorporación de recursos tecnológicos que simplifican y optimizan las tareas.  En la acuacultura, el monitoreo de calidad de agua se hace de manera manual dos o tres veces en un ciclo de 24 h.  Esto puede repercutir en baja supervivencia, crecimiento, elevado FCA, entre otras.  Por lo cual es necesario un monitoreo preciso, constante y en tiempo real de estas variables ambientales como temperatura y pH. Se desarrolló un sistema de monitoreo remoto en tiempo real del pH y temperatura del agua en un sistema acuapónico, se registraron cada hora temperatura (termómetro mercurio) y pH (potenciómetro), al comparar los grupos de datos no existieron diferencias significativas (U de Mann Whitney; P < 0.05). Sin embargo, en acuacultura, la toma de datos se realiza únicamente dos o tres veces en 24 h, este análisis muestra que el monitoreo remoto resulta confiable por la similitud en los datos registrados manualmente, en las granjas, realizar cada hora el registro manual no es posible por cuestiones de disponibilidad de personal o económicas.
A revision of the genus Neoliparina Schultze, 1934, with descriptions of three new species (Lepidoptera, Erebidae, Lymantriinae)
Authors: Powell Bethany
Published: September 2024

The tussock moth genus Neoliparina Schultze, 1934, has been regarded as monotypic since its erection 90 years ago, however, investigation into material housed in the Lymantriinae collections of the African Natural History Research Trust revealed a further three species belonging to this genus, which are described in this paper: Neoliparina smithi sp. n., N. schultzei sp. n. and N. nyonie sp. n. Schultze’s (1934) original descriptions of Neoliparina and its type species N. paradoxa Schultze, 1934 were based upon a single female specimen, and as such a detailed morphological examination of both sexes is provided in this paper. All four species show remarkably strong divergence in genitalia morphology and external habitus perhaps unusual for the Lymantriinae. The paper is illustrated with 12 diagnostic figures of adults and genitalia of both sexes of each species.
Suggesting Priorities of Sustainable Development Goals Considering the Lingering Impacts of COVID-19
Authors: Jenny In
Published: September 2024

The Sustainable Development Goals (SDGs), aimed to be achieved by 2030, demand a more efficient approach for the remaining period due to the currently low achievement rate and the persisting impact of COVID-19. Consequently, this study analyzes United Nations statistics and previous studies to propose a global prioritization of SDGs. The arguments in each document were interpreted cross-sectionally with those of others. The analysis incorporates a simple system dynamics methodology and adds a national psychological and behavioral economic perspective. Among all SDGs, this study suggests that Goal 17 (Partnerships for the Goals) and ecosystem-related goals corresponding to Goals 13, 14, and 15 should be the foremost global priorities, given their capacity to establish the foundation for other goals. The general goals (Goals 1 to 9, 11, 12, and 16) and Goal 10 (Reduced Inequalities) follow as the subsequent priorities, fostering the most effective progression. The paper also suggests that among the targets of Goal 17, targets 17.2 (fully implement the commitment to Official Development Assistance), 17.18 (support available data to developing countries), and 17.11 (increase exports of developing countries) should be globally prioritized to focus on the economic recovery of developing countries in a short time. Furthermore, this study recommends that while each region maintains its local priorities, the international community should adhere to the global priorities presented. This alignment will lead to a worldwide virtuous circle—a structure where following each other's priorities helps resolve the next set of issues.
The Effectiveness of GIS Mobility based Pattern Recognition Approach in COVID19 Infection among Sabah Local Community
Authors: Ang Kean Hua
Published: September 2024

COVID19’s medicine are yet undiscovered. Nevertheless, spread prevention are consider greater alternative to secure human life. This research study aim to apply GIS-based mobile in determine the pattern of people movement among Sabah local community. Secondary data of COVID19 are obtained from Ministry of Health, Malaysia, and GIS-based map from Google Earth Desktop. ArcGIS Version 10 software is applied to carry out descriptive and buffering analysis. The result indicates continuous increase in numbers of patients due to COVID19 in year 2021. Buffering analysis shows 5 metre for people who consider having medical condition or older people, while 1 metre for people that are not having any medical condition or not older people. Overlapping buffering will develop alert and notification to both users of GIS mobility based Apps. In conclusion, this technology using ‘Live Tracking System’ Apps could enhance the quality of human life by alert and notify the surrounding condition whenever staying outside of the house. Although scientists and researchers are working so hard to develop the medicine, humanare also have responsible to stop and prevent the COVID19 from being continuously spreading within human being.
TİYATRO METİNLERİNİN TEMEL DİL BECERİLERİNİN GELİŞİMDE VE DİLSEL HEDEFLERE ULAŞMADA OYNADIĞI ROL ÜZERİNE ÖĞRENCİ GÖRÜŞLERİNİN DEĞERLENDİRİLMESİ
Authors: Avcı Cansu
Published: September 2024

16. yüzyıldan günümüze değin Avrupa’nın belirli çevrelerinde çocukların ve gençlerin yetiştirilmesi için eğitim yöntemlerinden biri olarak kullanılan tiyatro, günümüzde de bilişim ve iletişim teknolojilerinin ilerlemesine, uluslar arasında siyasi, sosyal, kültürel ve ekonomik ilişkilerin gelişmesine koşut olarak yabancı dil eğitim ve öğretiminde önemini arttırmaktadır. Dolaysıyla tiyatro metinleri; okuma, yazma, anlama ve konuşma olmak üzere dört temel dil becerisinin yanında öğrencide iletişimsel ve sosyal becerilerin gelişimine de katkı sağlamaktadır. Bu çalışmanın amacı yükseköğretim düzeyinde Fransızca hazırlık sınıflarında öğrenim gören öğrencilere tiyatro metinlerinin hangi temel dil becerileri edinilmesine katkı sağladığının ve öğrencilerin dil edinme sürecinde hangi hedeflere ulaştıklarının belirlenmesidir. Bu amaçla, 2022-2023 eğitim-öğretim yılında Marmara Üniversitesi Yabancı Diller Yüksekokulu Fransızca hazırlık sınıflarında öğrenim gören, Molière’in yazdığı ve Luc Boulanger’nin uyarladığı “La Méga Malade Imaginaire” adlı tiyatro oyununda görev alan 23 öğrencinin düşünceleri değerlendirilmiştir. Öğrenciler görüşlerini Watsapp yoluyla ifade etmiş, herhangi bir veri kaybının önüne geçmek içinse tüm görüşler bilgisayar ortamında Word dosyasına kaydedilmiştir. Çalışmada öğrenci yorumları ayrıntılı bir şekilde incelenerek belirli başlıklar halinde sınıflandırılmış sonrasında da içerik çözümlemesi yöntemiyle analiz edilmiştir. Tiyatro metinlerinin, oyununda görev alan öğrencilerin temel dil becerilerinin geliştirdiği ve dil öğrenme sürecinde belirlenen hedeflere ulaşmada önemli bir araç olduğu sonucuna varılmıştır.
Leveraging Machine Learning Methods for Predicting Employee Turnover Within the Framework of Human Resources Analytics
Authors: Taner Zeynep , Areta Hızıroğlu Ouranıa , Hızıroğlu Kadir
Published: September 2024

Employee turnover is a critical challenge for organizations, leading to significant costs and disruptions. This study aims to leverage Machine Learning (ML) techniques within the framework of Human Resources Analytics (HRA) to predict employee turnover effectively. The research evaluates and compares the performance of six widely used models: Decision Trees, Support Vector Machines (SVM), Logistic Regression, Random Forest, XGBoost, and Artificial Neural Networks. These models were implemented using the R programming language on an open-source dataset from IBM. The methodology involved data preprocessing, splitting into training, validation and testing sets, model training, and performance evaluation using metrics such as accuracy, sensitivity, specificity, precision, F1-score, and ROC-AUC. The results indicate that the Logistic Regression model outperformed the other models, achieving high accuracy and a good F1-score. The study concludes by emphasizing the importance of HRA and ML techniques in predicting and managing employee turnover, while discussing limitations such as class imbalance and the need for more rigorous performance evaluation. Future research directions include exploring alternative models, feature selection techniques, and addressing class imbalance.
Evaluation of Effectiveness of the Program on Importance of Oral Health Care in Primary School Students
Authors: Prabha R Mercy Russelin , Chandran V Vijitha
Published: September 2024

Mouth or oral cavity is the first part of the digestive system. Taking care of mouth is as important as taking care of body. Aim of this study was to evaluate the effectiveness of awareness program on the importance of oral care among students in selected schools. Objectives were to evaluate the knowledge of children about the importance of oral care before and after teaching, to evaluate the effectiveness of teaching about importance of oral care among school children and to find correlation between Pretest scores about the importance of oral hygiene among children and their demographic variables. A structured interview questionnaire was used to collect data from 50 samples through interview technique. One group pretest posttest design was used. Theoretical concept used was the open system model. Descriptive and inferential statistics used to analyze the data. Independent "t" test shows a significant improvement in knowledge after the teaching programme (t = 35.2, P> 0.05). No significant relationship exist between pretest knowledge and demographic variables.
Impacto de la Pensión Garantizada Universal en las pensiones actuales y desafíos para el debate previsional en Chile
Authors: Fernández Karol , Rojas Nicolás , Weber Alejandro
Published: September 2024

Este artículo presenta un cálculo de las tasas de reemplazo de los actuales pensionados por vejez en Chile, tomando en cuenta el monto de la pensión autofinanciada y la pensión total, que incluye los aportes de la Pensión Garantizada Universal (PGU) y el Aporte Previsional Solidario (APS); ello, con el fin de identificar a aquellos grupos de actuales pensionados que han sido mayormente beneficiados con la entrada en vigor de la PGU y a quienes aún requerirían de mayor apoyo. Se utilizan datos administrativos publicados por la Superintendencia de Pensiones de pensionados por vejez de 65 años y más, a junio de 2022. Se concluye que las mujeres con más de 30 años de cotizaciones y los pensionados de clase media son los dos grupos que aún presentan rezagos en términos de tasas de reemplazo, y en los cuales debiesen enfocarse futuras políticas públicas.
Direct and inverse approximation theorems for functions defined in Damek–Ricci spaces
Authors: El Ouadih S.
Published: September 2024

UDC 517.5
We introduce the notion of

k

th modulus of smoothness and establish the direct and inverse theorems in terms of the quantities

E
s

(
f
)

  and the moduli of  smoothness generated by the spherical mean operator  defined on the

L
2

-space for the Damek–Ricci spaces. These theorems are analogous to the well-known theorems of Jackson and Bernstein. We also consider some problems related to the constructive characteristics of functional classes defined by the majorants of the moduli of smoothness of their elements.
Twin, cousin, and sexy prime counting function. Explicit formulas
Authors: Kowitz Krzysztof
Published: September 2024

UDC 511
We give explicit formulas for the twin-prime and cousin-prime counting functions. We propose a formula that computes the number of primes less than or equal to

n

  whose difference is

m
⩾
6.

 We also present a characterization specifying when two numbers whose difference is

n
⩾
2

are primes.
Multiple solutions for a

p

(
x
)

-Laplacian-like problem under Neumann boundary condition
Authors: Kefi K.
Published: September 2024

UDC 517.9
We prove the existence of at least three weak solutions for a class of

p

(
x
)

-Laplacian-like problems with Neumann boundary conditions by using a critical theorem of Bonanno and Marano [Appl. Anal., 89, 1–10 (2010)].
A A note on the Jacobson radical

J

(

𝔽

2
n

D

2
m

)
Authors: Kumar Yogesh , Sharma R. K.
Published: September 2024

UDC 512.5
The dimension of the Jacobson radical

J

(

𝔽

2
n

D

2
m

)

and the algebraic structure of

𝔽

2
n

D

2
k

3

J

(

𝔽

2
n

D

2
k

3

)

are determined. Here,

D

2
m

represents the dihedral group of order

2
m
,

𝔽

2
n

represents any finite field of characteristic

2

, and

F

2
n

D

2
m

represents the group algebra of the group

D

2
m

over the field

𝔽

2
n

.
On the size of finite Sidon sets
Authors: O'Bryant Kevin
Published: September 2024

UDC 519.1
A Sidon set (also called a Golomb ruler) is a

B
2

sequence and a

1

-thin set is a set of integers containing no nontrivial solutions to the equation

a
+
b
=
c
+
d
.

We improve the lower bound for the diameter of a Sidon set with

k

elements, namely, if

k

is sufficiently large and

𝒜

is a Sidon set with

k

elements, then

ⅆ
i
a
m

(
𝒜
)

≥

k
2

-
1.99405

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The user experiences design theoretical and practical aspects
Authors: Išoraitė Margarita , Steiblienė Laima , Mečėjienė Gitana
Published: September 2024

The article analyzes that the user experience design requires effort and investment. Improving the user experience can increase sales, improve customer loyalty, and create a good image for the company. The user experience strategies such as the user research, prototyping, and continuous improvement can be used to create product designs that meet users’ needs and improve their experience. A successful user experience design is critical to a product’s success, as providing a good experience makes users more likely to become loyal customers and recommend the product to their friends. A well-designed user experience can help increase product sales, improve the user experience, and reduce the number of support requests. To ensure a good user experience, it is necessary to follow certain design principles and use the right strategies. A good product without design is not enough – it is important that it is convenient to use and meets the needs of users. A scientific question. How to improve the user experience design of the e-store? The authors of the article aim to investigate the peculiarities of the user experience design of the e-store. The article was prepared on the basis of the analysis of scientific literature and the analysis of interview data. A semi-structured interview method was used.
Implementation of Lean Thinking in a higher education institution: an overview of problems and countermeasures
Authors: Ulbinaitė Aurelija , Šimoliūnaitė Gabrielė
Published: September 2024

The growing interest in implementing Lean thinking in non-manufacturing sectors is encouraging higher education institutions (HEIs) to keep pace with integral innovation. We aim at identifying the challenges of implementing Lean thinking in HEIs and exploring why Lean principles, although recognised as effective in the private and public sectors, are experiencing implementation problems in HEIs. We focus on preventive systems, measures and strategies that could contribute to minimising the risks of resistance towards the implementation of Lean thinking and, simultaneously, to increasing the quality of education in HEIs. This paper discusses the differences between Lean and Hierarchical Management Systems, the concept of the quality of education, the elements of customer value through benefits and burdens, the margins between optimising performance and overloading employees, the measurability of value stream processes, and the links between improving communication processes and performance indicators in a Lean framework. We carried out an overview of the scientific literature to define the constituents of the Lean mindset in HEIs and the problems that may arise in the implementation of these Lean strategic elements. This study leads to a better understanding that Lean thinking contributes to HEIs’ “customer” satisfaction, institutional efficiency and quality of education, all whilst corroborating the point that innovative top management, their devotion and a supportive and flexible workforce are essential components in fostering the effective implementation of Lean thinking in HEIs.
A Portrait of the Rotation of Ultra-cool Dwarfs Revealed by TESS
Authors: Fontinele D. O. , de Lima P. D. S. , Messias Y. S. , Gomes R. L. , Ferreira Lopes C. E. , Canto Martins B. L. , Leão I. C. , De Araújo J. M. , Janot Pacheco E. , De Medeiros J. R.
Published: September 2024

This study presents the results of a search for rotation signatures in 250 Gaia Data Release 3 ultra-cool dwarfs (UCDs) with TESS light curves (LCs). We identified 71 targets with unambiguous periodicities, of which 61 present rotation signatures and a single-source behavior, with periods between 0.133 and 5.81 days. Five UCDs show double-dip features, namely variations with two periods, one approximately double or half the other. The remaining 10 UCDs with unambiguous variability present a likely nonsingle behavior. We also found 20 UCDs showing complex behavior in their LCs, with noticeable fluctuations and irregular structure, with a few exhibiting apparent changes in their temporal structure. The remaining 159 targets show noisy LCs corresponding to low-amplitude signals, whose temporal variation cannot be easily identified. The distribution of the UCDs with rotation signature in a color–magnitude diagram points to a lack of rotating objects within about 11.5 < M

G
< 12.5 and G–G
RP < 1.5, separating them into two regimes, one mainly composed of less massive late-M stars with P
rot ≥ 1.0 day, and another mainly composed of more massive early-M stars with P
rot < 1.0 day. It is important to emphasize that by separating stars into age intervals, one observes that UCDs with P
rot ≥ 1.0 day tend to be located in regions of younger objects, and, in contrast, those with P
rot < 1.0 day are mainly concentrated in regions of older objects. Whether this trend of stars contrasting the sample separation is physical or produced by observational biases is a question to be verified in future studies.
The Simons Observatory: Design, Integration, and Testing of the Small Aperture Telescopes
Authors: Galitzki Nicholas , Tsan Tran , Spisak Jake , Randall Michael , Silva-Feaver Max , Seibert Joseph , Lashner Jacob , Adachi Shunsuke , Adkins Sean M. , Alford Thomas , Arnold Kam , Ashton Peter C. , Austermann Jason E. , Baccigalupi Carlo , Bazarko Andrew , Beall James A. , Bhimani Sanah , Bixler Bryce , Coppi Gabriele , Corbett Lance , Crowley Kevin D. , Crowley Kevin T. , Day-Weiss Samuel , Devlin Mark J. , Dicker Simon , DiGia Brooke , Dow Peter N. , Duell Cody J. , Duff Shannon M. , Gerras Remington G. , Groh John C. , Gudmundsson Jon E. , Harrington Kathleen , Hasegawa Masaya , Healy Erin , Henderson Shawn W. , Hubmayr Johannes , Iuliano Jeffrey , Johnson Bradley R. , Keating Brian , Keller Ben , Kiuchi Kenji , Kofman Anna M. , Koopman Brian J. , Kusaka Akito , Lee Adrian T. , Lew Richard A. , Lin Lawrence T. , Link Michael J. , Lucas Tammy J. , Lungu Marius , Mangu Aashrita , McMahon Jeffrey J , Miller Amber D. , Moore Jenna E. , Morshed Magdy , Nakata Hironobu , Nati Federico , Newburgh Laura B. , Nguyen David V. , Niemack Michael D. , Page Lyman A. , Sakaguri Kana , Sakurai Yuki , Sathyanarayana Rao Mayuri , Saunders Lauren J. , Shroyer Jordan E. , Sugiyama Junna , Tajima Osamu , Takeuchi Atsuto , Bua Refilwe Tanah , Teply Grant , Terasaki Tomoki , Ullom Joel N. , Van Lanen Jeffrey L. , Vavagiakis Eve M. , Vissers Michael R , Walters Liam , Wang Yuhan , Xu Zhilei , Yamada Kyohei , Zheng Kaiwen
Published: September 2024

The Simons Observatory (SO) is a cosmic microwave background survey experiment that includes small-aperture telescopes (SATs) observing from an altitude of 5200 m in the Atacama Desert in Chile. The SO SATs will cover six spectral bands between 27 and 280 GHz to search for primordial B-modes to a sensitivity of σ(r) = 0.002, with quantified systematic errors well below this value. Each SAT is a self-contained cryogenic telescope with a 35° field of view, 42 cm diameter optical aperture, 40 K half-wave plate, 1 K refractive optics, and <0.1 K focal plane that holds >12,000 transition edge sensor detectors. We describe the nominal design of the SATs and present details about the integration and testing for one operating at 93 and 145 GHz.
Theoretical Modeling of the Exceptional GRB 221009A Afterglow
Authors: Foffano Luca , Tavani Marco , Piano Giovanni
Published: September 2024

The extraordinary gamma-ray burst GRB 221009A provides a great opportunity to investigate the enigmatic origin and evolution of gamma-ray bursts (GRBs). However, the complexity of the observations associated with this GRB provides significant challenges to developing a theoretical modeling in a coherent framework. In this paper, we present a theoretical interpretation of the GRB 221009A afterglow within the relativistic fireball scenario, aiming to describe the broadband data set with a consistent model evolution. We find that the adiabatic fireball evolution in the slow-cooling regime provides a viable scenario in good agreement with observations. Crucial to our analysis is the set of simultaneous GeV and TeV gamma-ray data obtained by AGILE and LHAASO during the early afterglow phases. Having successfully modeled as inverse Compton emission the high-energy spectral and lightcurve properties of the afterglow up to 104 s, we extend our model to later times when also optical and X-ray data are available. This approach results in a coherent physical framework that successfully describes all observed properties of the afterglow up to very late times, approximately 106 s. Our model requires time-variable microphysical parameters, with a moderately increasing efficiency ε

e
of a few percent for transferring the shock energy to radiating particles and a decreasing efficiency for magnetic field generation ε

B
in the range 10−5–10−7. Fitting the detailed multifrequency spectral data across the afterglow provides a unique test of our model.
Forming Massive Terrestrial Satellites through Binary-exchange Capture
Authors: Williams Darren M. , Zugger Michael E.
Published: September 2024

The number of planetary satellites around solid objects in the inner solar system is small either because they are difficult or unlikely to form or because they do not survive for astronomical timescales. Here we conduct a pilot study on the possibility of satellite capture from the process of collision-less binary exchange and show that massive satellites in the range 0.01–0.1 M
⊕ can be captured by Earth-sized terrestrial planets in a way already demonstrated for larger planets in the solar system and possibly beyond. In this process, one of the binary objects is ejected, leaving the other object as a satellite in orbit around the planet. We specifically consider satellite capture by an “Earth” in an assortment of hypothetical encounters with large terrestrial binaries at 1 au around the Sun. In addition, we examine the tidal evolution of captured objects and show that orbit circularization and long-term stability are possible for cases resembling the Earth–Moon system.
First record of the antlion Solter liber Navás, 1912 in Italy (Neuroptera, Myrmeleontidae)
Authors: Badano Davide , Funari Rebecca , Di Giovanni Filippo
Published: September 2024

Myrmeleontidae are conspicuous insects with moderate species diversity, which are reasonably well studied in Europe. However, dedicated samplings in the Mediterranean region carried out in the last years suggest that the state of knowledge of the representatives of this family occurring in outhern Europe is far from ideal. Over 40 species of antlions and owlflies are reported from Italy, of which a few are only known from the islands of the Sicilian Channel.

Solter liber Navás, 1912 is reported for the first time in Italy, based on specimens collected in Pantelleria Island in 2022 and 2023.
Different observers introduce not negligible biases in comparative karyomorphological studies
Authors: Peruzzi Lorenzo , Franzoni Jacopo , Tiburtini Manuel , Abidi Emanuela , Alù Emiliano , Barone Giulio , Bianchi Elisabetta , Cataudella Chiara , Di Iorio Emanuela , Guerrina Maria , Mondello Fabio , Paino Luca , Pentassuglia Mario , Porrovecchio Manuela , Rivieccio Giovanni , Siccardi Eugenia , Stinca Adriano , Tei Alessio , Volanti Virginia , Giacò Antonio
Published: September 2024

Within a practical course of cytotaxonomy organized in Pisa (Italy) on February 2024 by the Group for Floristics, Systematics and Evolution of the Italian Botanical Society, we tested whether using image analysis softwares possible biases are still introduced by different observers. We conclude that observer bias selectively applies in possibly overestimating the length of short arms in a karyotype. As a consequence, the parameters most sensitive to these possible errors are CVCI and CVCL, and to a less degree MCA and THL. To achieve more stable results among observers, a still lacking standardized measurement protocol could be helpful.
Developing Future Teachers’ Academic Writing and Critical Thinking Skills Using ChatGPT
Authors: Datskiv Olha , Zadorozhna Iryna , Shon Olena
Published: September 2024

Preparing future teachers to meet the demands of an increasingly dynamic world is a paramount challenge. Academic writing and critical thinking skills influence foreign language teachers’ professional growth, shaping their students’ cognitive development. This paper explores the integration of ChatGPT (generative pre-trained transformer) as a tool to augment future foreign language teachers’ academic writing and critical thinking skills. Through engagement with ChatGPT, future foreign language teachers have the opportunity to interact with a large language model that can provide targeted feedback, prompt thought-provoking discussions, and assist in refining professionally oriented competencies. This study examines the impact of ChatGPT on skills development through a comprehensive analysis of empirical data, pedagogical frameworks, and student experiences. A qualitative study conducted with 35 students enrolled in a foreign languages master’s program utilized focus group interviews and thematic analysis. The findings highlight ChatGPT’s limitations in content generation while also recognizing its potential to reduce research labor and assist in formatting and referencing tasks. The study underscores the importance of informed usage of ChatGPT, with students and educators recognizing the necessity of verifying information and maintaining academic integrity.
A Review of Empathy Education with Digital Means among College Students
Authors: Sun Ruixia , Li Jingyu
Published: September 2024

The prevalence of the Internet and the development of digital technology have enabled people to communicate with each other easily and instantly. Yet the physical distance in virtual communication may inhibit intimacy and the expression of empathy towards each other. This paper has carried out a review study on the experiments of empathy training for college students, aimed at finding out the effective strategies for intervention activities. The review shows that educators incorporated various digital means into the curriculum design so that students may interact with each other online or with computer programs. In addition, self-reflection through writing and digital stories plays an essential role in the cultivation of empathy. Finally, the paper points out that further research should raise more concerns about the full-view assessment of empathy training results and the sustained development of empathic ability. The paper argues for the inclusion of more diversified subjects in the experiments.