bluuebunny/crossref_metadata_2025 huggingface dataset:
New designs systems for induction cooking devices for heating performances improving
Authors: Mohamed Rezig  , Kamel Srairi  , Mouloud Feliachi  , Lotfi Alloui
Published: August 2024

In order to give a temperature distribution at the bottom of the induction cooking, and moderate reduction the temperature outside the useless areas of these systems. This paper is dedicated to the study of the induction heating systems, which involves coupled electromagnetic and thermal phenomena and where new topologies are proposed. The modelling of the problem is based on the Maxwell's equations and the heat diffusion equation. We present a numerical simulation method based on parameterization of thermal electromagnetic coupling phenomena taking into account the changing of the physical characteristics of the body during the induction heating process. The purpose of this new optimum perforation topology is based on improving the thermal performances of the system, which allows improved dissipation by heat exchange. The results are obtained from a two-dimensional calculation code developed and implemented on Matlab software where CVM the finite volume method was adopted as a method of solving partial differential equations with partial derivatives characteristics of physical phenomena.
Influence of the combined system FPS isolator with viscous fluid damper on the dynamic response of the isolated bridges
Authors: Mohamed-Zohaïr Kaab  , Abdelhafid Ounis
Published: August 2024

To illustrate the effect of the combined system FPS isolator (Fiction Pendulum System) with viscous fluid damper on the seismic response of the isolated bridges, a comparative study was realised on a bridge in three different situations. In first situation, we consider the bridge without seismic isolation, while in the second and the third situation, the bridge is successively equipped with a system of FPS isolator then with a combined system FPS isolator and viscous fluid damper. The analysis was done using the digital program of dynamic analysis of the structures SAP2000 and this study consists in comparing the responses of the bridge in terms of baseshear, displacement, acceleration and absorbed energy. The results show that the incorporation of a damping device with viscous fluid damper to the isolator allows to dissipate the maximum of energy, to control the deformations which are located at the level of the isolator and to realize a satisfying compromise between the reduction of the seismic forces and the increase of the deformations in the seismic isolation.
Applications of He’s methods to the steady-state population balance equation in continuous flow systems
Authors: Abdelmaek Hasseine  , Imane Bechka  , Menwer Attarakih  , Hans-Jöerg Bart
Published: August 2024

The population balance equation has numerous applications in physical and engineering sciences, where one of the phases is discrete in nature. Such applications include crystallization, bubble column reactors, bioreactors, microbial cell populations, aerosols, powders, polymers and more. This contribution presents a comprehensive investigation of the semi- analytical solutions of the population balance equation (PBE) for continuous flow particulate processes. The general PBE was analytically solved using homotopy perturbation method (HPM) and variational iteration method (VIM) for particulate processes where breakage, growth, aggregation, and simultaneous breakage and aggregation take place. These semi-analytical methods overcome the crucial difficulties of numerical discretization and stability that often characterize previous solutions of the PBEs. It was found that the series solutions converged exactly to available analytical steady-state solutions of the PBE using these two methods.
Beyond thermal comfort in the hospital rooms. Investigation of thermal summer comfort in patients rooms: case of Biskra hospitals
Authors: Yasmina Besbas  , Nourdinne Zemmouri
Published: August 2024

In Algeria, the architectural design of hospitals is unfortunately not subject to clear and specific regulatory thermal strategy, it depends mainly on the architect own approach to the issue of comfort design, materials, etc. This research aims to investigate the present comfort conditions in typical hospital configuration and under specific climate conditions of hot and arid regions. Two different hospital designs have been investigated in Biskra. A main town is southeast of Algeria. The first case study being the oldest hospital in the town, build in the late 30s during the colonial era and renovated recently. The second hospital is a brand new hospital. A series of measurements of ambient air temperature, patient surveys and interviews have been initiated in two typical wards. The results show that thermal comfort sensations in these specific spaces depend not only on architecture, design and typical processes, but also on physiological, psychological and behavioral parameters which widely influence the perception of the patients.
The effect of the patio on the indoor thermal performancein the colonial courtyard houses in the saharan climate. The case of Biskra in Algeria
Authors: Fatima-Zohra Lebbal  , Said Mazouz
Published: August 2024

A wide range of studies related to the evaluation of thermal comfort were undertaken on various types of buildings as an attempt to draw up that the interaction between the environment and the user is necessary to properly evaluate the indoor thermal comfort. The present research aims to explore the thermal quality within the French colonial houses in the town of Biskra where many passive techniques have been used for modifying the interior climate by promoting the passive cooling devices, inspired by the local traditional architecture. The courtyard, which is a one of the bioclimatic strategies to reduce the external climatic constraints, is also a key for passive cooling. Consequently, this work aims to characterize the impact of the patio in a saharan climate on the ambiance quality of the interior space of the houses. In this paper, an investigation is being conducted in five houses with patio, chosen as representative samples of colonial architecture in Biskra by an objective experimental method that contains in situ useful measurements for the calculation of Top and Tmr comfort indices according to the ISO 7730 standard for the evaluation of thermal comfort summer. In order to build more comfortable houses, many traditional techniques could be improved by using modern knowledge, rather than to be totally abandoned.
Numerical simulation of convective heat losses in a helical tube of a cylindrical solar receiver
Authors: Toufik Arrif1  , Adel Benchabane  , Abdelmadjid Chehhat  , Abdelfetah Belaid  , Amar Rouag
Published: August 2024

In this paper, natural convection heat losses in a cylindrical solar receiver areinvestigated numerically. The study is conducted using three helical tube diameters: 12mm,16mm and 25mm. The diameter of the receiver is 0.3 m with an aspect ratio equal to one andthree aperture ratios of 1, 0.75 and 0.5. In each case, the receiver tube inside the cylindricalcavity is modelled by a helical spiral similar to those of real systems. The simulations areperformed for three inlet temperatures (of 50, 75 and 100°C) and four receiver tilt angles (of 0,30, 60 and 900) with a constant mass flow rate of 0.0885 kg/s. The effects of some parameterssuch as receiver size, boundary conditions, tube diameter, receiver tilt, inlet temperature andopening ratio on convective heat losses and outlet temperature are presented in form of graphs.It has been found that the convective heat losses are reduced by using the adiabatic boundarycondition imposed on the half-circumference of the tube. Thus, increasing the helical tubediameter causes an increasing in the convective heat losses. The increasing of the fluidtemperature and the opening ratio are found proportional to the increasing of convective heatlosses.
Vision Based Tracking and Interception of Moving Target by Mobile Robot Using Fuzzy Control
Authors: Mohamed Boumehraz  , Zineb Habba  , Rafia Hassani
Published: August 2024

This paper presents a simple Fuzzy Logic Controllers (FLC) based control strategy to solvethe tracking and interception problem of a moving target by a mobile robot equipped with a pan-tilt camera. Before sending commands to the mobile robot, video acquisition and image processingtechniques are employed to estimate the target’s position in the image plane. The estimatecoordinates are used by a fuzzy logic controller to control the pan-tilt camera angles. The objectiveis to ensure that the moving target is always at the middle of the camera image plane. A secondFLC is used to control the robot orientation and to guarantee the tracking and interception of thetarget. The proposed pan-tilt camera and robot orientation controllers’ efficiency has beenvalidated by simulation under Matlab using Virtual Reality Toolbox.
Sources of Living: A Community Needs Assessment for Livelihood of Panaytayan Community in Mansalay, Oriental Mindoro
Authors: Melendres Jared Morales , De Guzman Rhea B.
Published: August 2024

This Community Needs Assessment (CNA) explores the livelihood dynamics of the Panaytayan Community in Mansalay, Oriental Mindoro. Home to over 11,500 indigenous Hanunuo Mangyan people (Municipal Community Development Office, 2024), Panaytayan is endowed with picturesque landscapes but faces persistent livelihood insecurities. The study employed a qualitative approach, utilizing interviews from Mansalay Community Development Office assigned personnel and community members from four selected sitios within the community, and observations through actual community immersion. Results revealed the various livelihood sources of the community, including kaingin, ramit weaving, handicraft production, and high-value crop cultivation such as kaong, cacao, and coffee. Some households also raise native chickens and pigs, and goats as an additional source of income, along with carabao for transportation and farm work. Despite these diverse activities, the community needs support for the different challenges they are facing, such as the lack of organized weaving communities, productivity limitations of older artisans, and the absence of standardized tools affecting product quality. Moreover, financial management and inclusivity issues add to the mentioned challenges, alongside broader concerns of inadequate infrastructure, limited education, and health services, which are all interrelated barriers to having sufficient income.On the other hand, the Panaytayan community exhibits a robust willingness to engage in collaborative livelihood projects, tapping into a pool of artisans and utilizing the rich local raw materials available in the area. The study underscored the need for structured interventions, including organizing weaving communities, enhancing skills in handicraft production, networking, creating market platforms, implementing financial education programs, and advocating for infrastructure development. These recommendations aim to empower the Panaytayan community, fostering sustainable livelihoods that interlink economic, environmental, and cultural sustainability.
Pengembangan Media Pembelajaran Berbasis Microsoft Teams Untuk Meningkatkan Motivasi Belajar Siswa Mata Pelajaran Seni Budaya Kelas X Di SMA YPPK Asisi Sentani
Authors: Wilar Natalia
Published: August 2024

Penelitian pengembangan ini akan menghasilkan suatu produk media pembelajaran yang dikemas dalam bentuk aplikasi Miscrosoft Teams pada siswa kelas X IPS 1 SMA YPPK Asisi Sentani yang diharapkan mampu menjadi salah satu solusi untuk meningkatkan motivasi belajar siswa terkhusus mata pelajaran seni budaya. Penelitian ini adalah penelitian pengembangan dengan menggunakan model pengembangan ADDIE. Subjek dalam penelitian ini adalah ahli isi konten, ahli media pembelajaran, ahli desain pembelajaran, siswa perorangan, siswa kelompok kecil, dan siswa dalam uji coba lapangan. Variabel yang diteliti dalam penelitian ini adalah Media Pembelajaran berbasis MS Teams dan Motivasi belajar siswa. Data penelitian dikumpulkan dengan menggunakan instrumen wawancara, kuesioner, dan tes hasil belajar. Microsoft teams adalah sebuah platform komunikasi dan kolaborasi terpadu yang menggabungkan fitur percakapan kerja, rapat video, penyimpanan berkas (termasuk kolaborasi berkas) dan integrasi aplikasi. Hasil penelitian menunjukkan bahwa telah berhasil dikembangkan sebuah media pembelajaran yang dikemas dalam bentuk MS Teams untuk kegiatan Pembelajaran Jarak Jauh dan telah valid untuk digunakan. Hasil angket kuisioner menunjukkan bahwa produk yang dikembangkan efektif untuk meningkatkan motivasi belajar siswa.
UMA ANÁLISE SOBRE A ÓTICA DA LINGUÍSTICA APLICADA DA OBRA 8 JEITOS DE MUDAR O MUNDO PARA CRIANÇAS: UTILIDADE PARA A SALA DE AULA DO ENSINO FUNDAMENTAL II
Authors: Nery Grace
Published: August 2024

This study aims to analyze the book 8 Jeitos De Mudar O Mundo for children, in analogy from the perspective of applied linguistics, highlighting its mannerisms and uses for elementary school II, pointing out literary aspects such as its textual genre and its diversity of themes. In these investigations, applications for the Portuguese language component will be exposed, recommending the practices of the precepts of linguistics applied in a broad and diverse way, interacting with other areas of knowledge and cooperating dynamically in the production of knowledge. Educators must have teaching material at hand that supports this mission, enabling a more complete and assertive study, which efficiently puts theory into practice, developing it in countless learning situations. Strengthening speech and writing in relationships in the classroom and beyond. Providing reflection inherent to the teaching situation at school, which elucidates the scenario of the teaching-learning process related to the improvement and resourcefulness of the student's speech and writing, highlighting the importance of these skills for social insertion and for articulating transformations in the life of this citizen. It is up to the professor to lead the individual and collective maturation of students in favor of the full mastery of these skills.
The most suitable English learning methods for young learners
Authors: Masrurotul Ajiza
Published: August 2024

The aim of this article was to know the most suitable and effective methods to apply to young learners as elementary graders. The researcher got 17 female and male students. Their grade varied from class 1 to class 6. Before conducting this study, the problems faced by the students are they seemed got difficulty memorizing English words, lacked motivation, and lacked concentration in learning English. There were 3 methods used in this study: Grammar Translation Method (GTM), Audio Lingual Method, dan Total Physical Response. The students were taught English once a week. The researcher observed the effectiveness of each method in each meeting. Those methods were used all together in each learning process. The finding showed that GTM was not effective to apply, while the two latter were good and effective to apply for those students.
analysis of lecturers’ role in forming classroom interaction among students: A case study at Smaratungga Buddhist Study College
Authors: Budiyanto Budiyanto , Fitriati Sri Wuli , Partono Partono , Utomo Budi , Kabri Kabri
Published: August 2024

The importance of classroom interaction in EFL (English as a Foreign Language) instruction is occasionally lost on educators. The interaction in the classroom is crucial to assimilating and embracing the target language. As a result of successful information transfer from the teacher to the students, good contact can lead to an increase in students' language acquisition. Because the focus of the classroom interaction study is on how interlocutors make meaning of one another's contributions, the findings can be used as a diagnostic tool to identify issues with discourse management and crucial occurrences that learners confront. Researchers used qualitative methods, including discourse analysis and case studies. Smaratungga Buddhist College Study College was conducted this investigation. The researchers anticipate that learners will be motivated and inspired by the interactional situation. This study focuses on how the teacher creates interaction in the classroom. The success of all outcomes depends on how well students interact. Researchers agree with their actions while they are interacting with the teacher or one another.
influence of parental attention and interest in learning on student social studies learning achievement in Elementary School
Authors: Iklimatunnajah Iklimatunnajah
Published: August 2024

This research uses the ex post facto correlation method to examine the relationship between parental attention, interest learning social studies, and student learning outcomes at SDN 1 Pabuaran Wetan. The sample consists of 40 grade IV students selected through stratified random sampling. Data on parental attention, interest learning, and student learning outcomes were collected simultaneously using scales and assessments. Inferential statistical techniques, such as t-tests or ANOVA, will be applied to analyze the data. The research aims to determine if there is a significant relationship between the variables and provide insights into student achievement. The findings will inform the development of effective educational strategies to enhance student interest and improve learning outcomes in social studies. Understanding parental attention and interest learning can contribute to the design of interventions and programs that promote student engagement and academic performance in social studies education.
Gestão de sepse e infecções agudas em pacientes cirúrgicos
Authors: Diógenes Emanuel Dantas da Silva  , Isabela Teixeira Gonçalves  , Leonardo Cortes de Aguiar Franco  , Maria Carolina Fagundes Rodrigues  , Yasmim Câmara Fagundes  , Victoria Menezes Cordeiro  , Esther Cabral Jersey  , Jaqueline Giselle Farias Fernandes  , Jamylle dos Santos Ramos  , Thalita Martins Bezerra  , Maria Caroline Silva marinho de Paula  , Maria Eduarda Höehr Zwetsch  , Gabriella Sousa Almeida  , Maria Verônica de Almeida Santos Nitsche  , Maria Eduarda Neves de Alencar
Published: August 2024

A sepse e as infecções agudas são complicações graves em pacientes cirúrgicos, associadas à alta morbidade e mortalidade. Este estudo tem como objetivo analisar abordagens integradas para a gestão de sepse e infecções agudas em pacientes cirúrgicos. Foi realizada uma revisão integrativa utilizando as bases de dados Scientific Electronic Library Online (SCIELO) e Literatura Latino-Americana e do Caribe em Ciências da Saúde (LILACS), com descritores “sepse”, “infecções agudas” e “gestão”. Os resultados indicam que uma abordagem multidisciplinar, incluindo a administração precoce de antibióticos, manejo intensivo de fluidos e monitoramento contínuo, é essencial para melhorar os desfechos clínicos. Conclui-se que a implementação de protocolos padronizados pode reduzir significativamente a mortalidade associada a essas condições.
Tajogaite, « montagne fissurée » et âmes fêlées. Un nouveau souffle après les cendres
Authors: Hermesse Julie , Kempeneers Caroline
Published: August 2024

Le volcan Tajogaite de Cumbre Vieja est entré en éruption le 19 septembre 2021 sur l’île de La Palma dans les Canaries. Son éruption a reconfiguré le territoire de l’île, impactant de manière fulgurante les biens immobiliers et les terres agricoles. Aux effondrements et la perte de nombreux lieux de vie se conjuguent des deuils pour les insulaires qui ne peuvent être répertoriés de manière tangible. Cet article est le fruit d’un travail de terrain mené de manière conjointe et transdisciplinaire par une artiste et une anthropologue. L’espace-temps liminaire de basculement est analysé au travers d’une collecte de témoignages réalisée sur l’île. Force est de constater que, deux ans plus tard, l’île endeuillée des pertes se redresse, ce qui permet ainsi d’interroger les notions de cocréations et de résilience. Opérant un détour par l’histoire volcanique de La Palma et l’histoire guanche précoloniale, cet article témoigne de l’ambivalence de cette page d’histoire contemporaine palmera : une histoire « fissurée » par l’éruption de 2021, à l’image de la dénomination actuelle du volcan, mais aussi une histoire d’autodétermination dont font preuve les populations locales.
Investigation of performance improvement of gas turbine engine by optimized design of blade turbine cooling channels
Authors:   , Elmenshawy Adham
Published: August 2024

This Doctoral Thesis focuses on the critical challenge of cooling turbine blades in gas turbine engines, a component exposed to extreme temperatures and thermal stresses during operation. Predominantly, these blades experience intense heat due to fuel combustion in the engine’s combustion chamber, necessitating efficient cooling methods to prevent overheating and failure. A key aspect of this research was the optimization of cooling channel designs within these blades. The channels that circulate coolant fluid are essential for maintaining blade temperatures within safe limits. The study emphasizes the design considerations crucial for effective cooling: accommodating the required flow rate with acceptable pressure drops and optimizing channel geometry for efficient heat transfer while minimizing profile losses. Material properties of the turbine blades, including thermal conductivity, heat capacity, and melting point, were also considered in the design phase of the cooling channels. An extensive statistical analysis was conducted on CF6 engines installed in B747 aircraft. This involved examining engine failures, performance tests, and borescope inspection (BI) reports under various operational conditions. The study provided a detailed examination of the exhaust gas temperature (EGT) margin and other engine parameters, offering insights into engine degradation and performance loss over time. This provided an important understanding to design cooling channels for the blade profile. In the next step, by employing computational and analytical methodologies, the study evaluated the cooling performance of the base model (original) of NASA’s 3CX turbine blade. SolidWorks and ANSYS FLUENT were used in this analysis, supported by a MATLAB algorithm for data comparison with the reference experimental data. The research compared different cooling channel configurations, including U-bend, net-shape, and jet impingement types, especially designed for doctoral research. The designed channels revealed significant differences in drag forces and thermal performance based on their design features.
Ultrasonic phase shift migration imaging of wrinkled defects in composite materials fused with circular statistical vectors
Authors: Liu Shu-Qian , Zhang Hai-Yan , Zhang Hui , Zhu Wen-Fa , Chen Yi-Ting , Liu Ya-Jie ,   School of Communication and Information Engineering, Shanghai University, Shanghai 200444, China,   School of Urban Rail Transportation, Shanghai University of Engineering Science, Shanghai 201620, China
Published: August 2024

Ultrasonic phase changes carry critical information about tissue structures, and phase weighting can enhance the sharpness of ultrasonic images. Addressed here are challenges, such as the faint scattering echoes from folds, substantial noise interference, and the lengthy processing time involved in time-domain corrected imaging. Processed in this work is a frequency-domain coherent imaging method based on the coherence factor of the phase imaginary part. Firstly, the phase information in the wavefield signal is extracted, and then the phase imaginary part matrix is extracted by using circular statistics. Subsequent construction of the phase imaginary coherence factor (PICF) involves multiplying this matrix with the original frequency-domain matrix used in phase shift migration (PSM) imaging. By incorporating the PICF into phase migration imaging and adjusting the PICF of the migrating wavefield at each layer, fibre texture information can be efficiently recovered by frequency domain signal multiplication. In this paper, this technique is applied to the 18-mm-thick carbon-glass fiber composite boards. The experimental outcomes indicate that without PICF weighting, phase shift imaging loses the fiber layout information at depths exceeding 10 mm and cannot detect defects in deeper areas. The PICF-weighted PSM imaging identifies three fibre folds with depths of 11 mm, 15 mm and 16 mm, respectively. This method improves the imaging clarity and textural detail of folding defects, while maintaining a detection error of about 10% for folding angles. The imaging time is only 1.5 s, and its computational efficiency is at least 8.67 times that of time-domain TFM imaging.
Pedagogical Outdoor Project in Nature Sloyd
Authors: Sandven Jostein
Published: August 2024

This study investigated the pedagogical value of a nature sloyd project. The assign­ment was to create the interior of and add decoration to one of the domed caves in a snow hotel dedicated to newlyweds. The theoreti­cal understanding that led to solve the design assignment was derived from experience-based teaching. The students were interviewed during the process, and three months later, the interviews emphasised the students’ experiences, cooperation, and learning and under­standing of significant subjects in the process. The Nordic context added value to the project. To support the interview data, the researcher’s memos and photos of the process were included in the analysis. The collected data were analysed in accordance with the constructing grounded theory method. The results show that feedback from supervisors and outsiders is important for maintaining motivation for a demanding outdoor project. They also show that the students were absorbed in the joy that various parts of the work process brought them, and it was new to them that ice can be processed with almost all types of tools found in a workshop for woodworking. Collaboration in lifting and constructing large structures using snow and ice made it possible for students to think in terms of a holistic design methodology. In such a way that the students reflected on didactic issues that may face them in their future profession as teachers. The results contribute to the understanding of the educational possibilities of pedagogical nature sloyd.
Keywords: pedagogical value, sloyd, design art and crafts, nature sloyd
ProcGCN: detecting malicious process in memory based on DGCNN
Authors: Zhang Heyu , Li Binglong , Yu Shilong , Chang Chaowen , Li Jinhui , Yang Bohao
Published: August 2024

The combination of memory forensics and deep learning for malware detection has achieved certain progress, but most existing methods convert process dump to images for classification, which is still based on process byte feature classification. After the malware is loaded into memory, the original byte features will change. Compared with byte features, function call features can represent the behaviors of malware more robustly. Therefore, this article proposes the ProcGCN model, a deep learning model based on DGCNN (Deep Graph Convolutional Neural Network), to detect malicious processes in memory images. First, the process dump is extracted from the whole system memory image; then, the Function Call Graph (FCG) of the process is extracted, and feature vectors for the function node in the FCG are generated based on the word bag model; finally, the FCG is input to the ProcGCN model for classification and detection. Using a public dataset for experiments, the ProcGCN model achieved an accuracy of 98.44% and an F1 score of 0.9828. It shows a better result than the existing deep learning methods based on static features, and its detection speed is faster, which demonstrates the effectiveness of the method based on function call features and graph representation learning in memory forensics.
Arbuscular mycorrhizal fungi enhance drought resistance in Bombax ceiba by regulating SOD family genes
Authors: Luo Changxin , Li Zhumei , Shi Yumei , Gao Yong , Xu Yanguo , Zhang Yanan , Chu Honglong
Published: August 2024

The physiological activity facilitated by arbuscular mycorrhizal fungi (AMF) contributes to plants’ ability to tolerate drought. Nevertheless, it is unclear if AMF colonization affects the expression of genes in the host plant that encode antioxidant enzymes in the superoxide dismutase (SOD) family, which help alleviate drought stress in plants. Here, we conducted a pot trial to determine whether colonization by the AMF Rhizophagus irregularis improves drought resistance in Bombax ceiba. We comprehensively analyzed the SOD gene family and evaluated genome-wide expression patterns of SODs and SOD activity in AMF-colonized and non-mycorrhizal plants under simulated drought. We identified a total of 13 SODs in the genome of B. ceiba, including three FeSODs (BcFSDs), three MnSODs (BcMSDs), and seven Cu/ZnSODs (BcCSDs). Phylogenetic analysis based on binding domain revealed that SOD genes from B. ceiba and various other plant species can be divided into three separate groups, showing significant bootstrap values. Our examination of gene composition and patterns suggests that most BcSOD genes in these three subgroups are significantly conserved. Additionally, it was noted that hormones and stress-responsive cis-regulatory elements were found in all BcSOD promoters. Expression profiling by qRT-PCR demonstrated that AMF increased relative expression levels of Cu/Zn-SODs in both roots and shoots under drought stress, except for BcCSD3 in roots. Furthermore, AMF colonization increased the relative expression of BcMSD1a and BcMSD1b in roots, augmenting SOD activities and increasing ROS scavenging during drought. In general, this work offers molecular evidence in support of the beneficial effect of AMF colonization on drought tolerance in B. ceiba. It also elucidates the expression patterns of SOD genes, which will support efforts to optimize mycorrhizal seedling cultivation under stressful conditions.
Do bucólico à luta pelo poder
Authors: Silva Amós Coelho da
Published: August 2024

Liberdade, ainda que tardia é a tradução de Libertas quae sera tamen, verso clássico, mas ironizado por Vinícius de Moraes (Rónai, 1980). Uma outra expressão horaciana Carpe diem, Aproveita o dia de hoje (Rónai, 1980), ou como na tradução Desfruta hoje (Odes, I, 11, 8), nos adverte sobre a falsa expectativa futura, manipulada pelo poder, tão presente em propagandas intermidiáticas. A escola usou estas mesmas frases latinas para patrocinar a educação, porém de modo frustrante, como se constata em poetas que protestaram, aplicando o uso de Liberdade, ainda que tardia para questionar a justiça social e outros aplicaram o Carpe diem para indagar sobre a importância da subjetividade em oposição à conquista do poder.
Demanda por hortaliças e renda: constatações relativas às preferências por locais e frequência de compras
Authors: Marjotta-Maistro Marta Cristina , Pedroso Maria Thereza Macedo , Montebell Adriana Estela Sanjuan , Santos Jeronimo Alves dos , Lobo Annelise Aila Gomes
Published: August 2024

Um estudo recente sobre governança e transações das cadeias econômicas de frutas e hortaliças revelou a crescente participação de grandes redes supermercadistas no Brasil, comprando diretamente dos produtores. Os supermercados são valorizados pela conveniência de oferecer uma variedade de produtos em um só lugar, com horários flexíveis e ambientes cobertos, aumentando a frequência de visitas dos consumidores devido à perecibilidade das hortaliças. O artigo objetiva investigar os locais e a frequência de compra de hortaliças conforme a renda familiar. Utilizando um questionário online com 852 respondentes de 186 cidades brasileiras, os resultados mostraram que o supermercado é o local de compra mais frequente (40% ou mais em todas as faixas de renda). A maioria dos consumidores compra hortaliças uma vez por semana. A pesquisa fornece insights estratégicos para marketing alimentar e planejamento logístico, considerando diferentes estratégias para diferentes faixas de renda.
Desvendando as informaçôes nutricionais em alimentos: abordagem prática
Authors: Silva Vanecy Matias da , Moreira-Araújo Regilda Saraiva dos Reis
Published: August 2024

Os rótulos dos alimentos têm papel importante na escolha adequada de alimentos, informando os consumidores sobre os nutrientes e a quantidade e o conteúdo no produto. A presente pesquisa teve como objetivo elaborar um e-book com informações e orientações claras, e de fácil entendimento sobre a disposição de tabela nutricional para produtos. A coleta de dados foi reaizada por meio do aplicativo ORA BRASIL, desenvolvido e aplicado por um grupo de pesquisadores da Universidade Federal de São Paulo com a participação de pesquisadores da UFPI do qual este trabalho é um recorte, sendo feita a coleta de dados no comércio atacadista e varejista de Teresina-PI, no ramo alimentício. Como forma de levar ao consumidor informações necessárias para o uso de rótulos nutricionais, para orientar os consumidores sobre como usar estas orientações na escolha dos alimentos e aumentar o conhecimento nutricional. Como resultados esperados apresenta-se um e-book contendo, como exemplo, 30 alimentos, de quatro grupos: produtos de panificação, lácteos, sucos e similares e outros produtos, desvendando as informações nutricionais para facilitar a compreensão pelos consumidores.
Clothing and Accessories as a form of Artistic Expression
Authors: Ademtsu James Tetteh , Acquah-Goulbourne Richard , Yayra Aidam Kokui
Published: August 2024

This study explores how clothing and accessories serve as forms of artistic expression in Ghana, investigating their role in self-expression, cultural identity, and social communication. Using a mixed-methods approach, including surveys (N=500) and in-depth interviews (N=20) with Ghanaian adults aged 18-60, the research reveals that 88% of participants consider clothing a form of art. Key findings include gender differences in the importance attributed to clothing for self-expression, age-related variations in the use of traditional textiles, and the complex interplay between global clothing trends and local cultural practices. Thematic analysis of interviews identified the use of traditional Ghanaian textiles and symbols in contemporary clothing, the influence of globalization, and the role of clothing in asserting personal and cultural identity. This research contributes to the literature on clothing as artistic expression, emphasizing its cultural specificity in the Ghanaian context.
Public Perception of Radio Programmes on Parental Sexual Abuse on Children: A Study of Residents of Owerri Metropolis
Authors: Adeline Nkwam-Uwaoma , Ugboma Evaristus Jideofor , Chike Nkwocha Martin , A. Eze Immaculate , Williams Etumnu Emeka
Published: August 2024

Recently, media reports of parental sexual abuse have been alarming. Hence, this study examined the public perception of radio programmes on parental sexual abuse of children in Imo State metropolis. The study was anchored on agenda-setting theory. The study adopted the survey research design. From the population of 983,000 residents in Owerri metropolis, 400 were derived using the Taro Yamani formula. The multistage sampling technique was used. A questionnaire was used as the instrument of data collection. The percentage and mean analysis methods were used for the analysis. The findings revealed that an average of 41.4% of the respondents have the perception that radio programmes on parental sexual abuse are not properly packaged, that programmes on parental sexual abuse are not aired at the right time so as to get many listeners, and that radio programmes on parental sexual abuse do not influence parents positively. Further findings revealed that, at a mean of 2.4, it was confirmed that radio programmes on parental sexual abuse were not effective in influencing the behaviour of Owerri metropolis residents on issues of parental sexual abuse. The results suggest that producers of programmes that focus on child abuse should enrich their content and schedule the programme at the appropriate time to attract a good number of listeners in order to influence them positively. Efforts should be made by radio stations and programme producers to make their programmes effective in curtailing the issue of child abuse in Imo State and, by extension, Nigeria.
Impact of Gibberellic Acid and Potassium Nitrate Pre-Sowing Treatments on True Potato Seed Germination and Early Growth: A Comparative Analysis
Authors: Paudel Laxmi Kanta , Sharma Dinesh , Sigdel Diksha , Timsina Anup
Published: August 2024

This study aimed to evaluate the effects of various pre-sowing chemical treatments on True Potato Seed (TPS) germination and early growth to identify optimal treatments that enhance seedling vigor and productivity in Dolakha, Nepal. The experiment was conducted from April to June 2023 in Charikot, Dolakha district (27.669518° N, 86.051006° E). It used a Completely Randomized Design (CRD) with eight treatments, each replicated three times. Treatments included hot water, gibberellic acid (GA3) at concentrations of 1000, 1500, and 2000 ppm, and potassium nitrate (KNO3) at 0.2%, 0.4%, and 0.6%. These are applied for 24 hours in the dark, followed by shade drying. Key metrics recorded were germination percentage, shoot length, root length, leaf number, and seedling vigor. Data analysis was conducted using ANOVA in R-Studio and the results were presented via MS Excel. The findings revealed that seeds treated with 2000 ppm GA3 had the highest germination rate at 86.34%, compared to the control group (59.72%). This concentration also produced the longest shoot length (11.92 cm) and the highest seedling vigor index (1.01). The Variations in the relative growth rates for shoot, root lengths, and the number of leaves were not statistically significant across treatments. In conclusion, the study demonstrated that higher concentrations of GA3 (2000 ppm) and KNO3 (0.6%) significantly improved TPS germination and seedling vigor. These findings suggest that these treatments can benefit potato cultivation by enhancing seedling quality and reducing dependence on seed tubers. Further research is recommended to explore the long-term impacts on crop yield and broader applicability.
Assessment of Soil Salinity and Irrigation Water Quality at Tahtay-Adyabo District, Northwestern Tigray, Ethiopia
Authors: Kahsu Geberesemaeti , Gebrehiwet Weldegebriel , Tekulu Kinfe , Berhe Tewolde , Tadele Tsadik , Mebrahtom Solomon , Mebrahtu Samrawit , Aregawi Goitom
Published: August 2024

A study was conducted in Tahtay Adyabo northern Ethiopia to assess the salinity and irrigation water quality at farmer-level irrigation sites in the year of 2012.  irrigation sites was identified and sampling units was assigned. 38 soil samples were collected from 19 plots (Dugub, Endaserawat, Mytewldish, Egum dima, and scattered wells in  Mentebteb district ) at depths of 0-30cm and 30-50cm, along with, 21 water samples from 14 wells and 7 rivers. These samples were then analyzed at the Shire Soil Laboratory for salinity and fertility parameters. The results showed that the salinity status of surface soil at 0-30cm depth for dugub, scattered wells, and Myteweldish was 75% non-saline and 25% slightly saline. For Endaserawat, 50% was slightly saline, 25% moderately saline, and 25% strongly saline. Egum Dima showed 67% slightly saline and 33% moderately saline. In subsurface soil at 30-50cm depth, dugub, scattered wells, and Myteweldish were 75% non-saline and 25% slightly saline, while Endaserawat was 25% slightly saline and 75% moderately saline, and Egum Dima was 67% slightly saline, 16.5% moderately saline, and 16.5% strongly saline. Water analysis for the wells showed that out of 14 samples, 21% were non-saline, 21% were slightly to moderately saline, and 57% were severely saline. For the rivers, out of 7 samples, 43% were slightly to moderately saline and 57% were severely saline. Overall, out of 21 water samples from wells and rivers, 14% were non-saline, 29% were slightly to moderately saline, and 57% were severely saline. In general, the salinity status in Dugub, Endaserawat, Mytewldish, and Egum Dima varies from non-saline to strongly saline, but the severity is more pronounced in Endaserawat and Egum Dima. This salinity is attributed to the parent material and the water table. Crop selection, integration of organic matter, applying extra irrigation water and regular salinity monitoring is recommended, to optimize the productivity of the soils in the irrigation site.
Shree Anna (Millets): Promoting Nutrition and Sustainability in Agricultural Millets Map of India
Authors: Hidangmayum Narmada , Gomadhi G. , Ramasamy M. , Ejilane S. , Chitra K. , Rajeswari E. , Dhanalakshmi K. , Malathi G. , Senthilkumar T
Published: August 2024

Shree Anna, an initiative dedicated to promoting the cultivation and consumption of millets in India, stands at the forefront of efforts to enhance nutrition and sustainability in agriculture. Central to its mission is the creation of the Millets Map of India, which showcases the diverse regions where millets are cultivated across the country. From Karnataka to Rajasthan, and Tamil Nadu to Uttar Pradesh, the map highlights the geographical spread of millet cultivation, emphasizing their nutritional value and environmental resilience. Through educational programs, farmer training, and consumer awareness campaigns, Shree Anna aims to underscore the nutritional benefits of millets while advocating for their sustainable cultivation. By fostering market demand and economic opportunities for millet farmers, the initiative seeks to create a more inclusive and resilient agricultural ecosystem. The Millets Map of India serves as a visual testament to the transformative potential of millets in promoting nutrition, sustainability, and food security in India's agricultural landscape.
Micronutrient Dynamics in Soil under Integrated Thermochemical Organic Fertilizer Pellet Application
Authors: Tsering Phurpa , Leno Naveen , B Rani , S Sarada , Swaroop Raji
Published: August 2024

A soil incubation study was carried out in the Department of Soil Science and Agricultural Chemistry, to assess dynamics of micronutrient release. Soil pots were filled with 5 kg air-dried, 2 mm sieved soil. The study was laid in Completely Randomized Design with 5 treatments and 4 replications. Treatments were, T1: Pellet formulation 1; T2: Pellet formulation 2; T3: Pellet formulation 3; T4: FYM+NPK (RDF as per POP) and T5: Control (Soil alone). The Fe, Mn, Zn, Cu and B content of soil were 10.14 mg kg-1, 8.59 mg kg-1, 1.90 mg kg-1, 2.50 mg kg-1 and 0.30 mg  kg-1, respectively. Three distinct pellet formulations P1, P2 & P3 were used in study based on thermochemical organic fertilizer (TOF). Fe, Mn and Zn exhibited a gradual and progressive release pattern throughout the incubation period. Whereas Cu and B availability showed a decreasing trend from the 15th day onwards. Highest Fe, Mn and Zn availability were observed towards the end of the incubation study. While the Cu and B recorded highest on the initial 15th day of incubation. Hence it can conclude that TOF based pellets significantly impact the micronutrient availability in soil compared to the FYM based and control treatment.
Determining the Effect of Integrated Nutrient Management on Growth and Yield of Barley (Hordeum vulgare L.) in Rajasthan, India
Authors: Kumar Roshan , Dhaked Gautam Singh , Jakhar Chandrakanta , Suman Bhagwan , Meena Brijesh Kumar , Yadav Indra Raj
Published: August 2024

A field experiment was conducted at experimental farm, Department of Agronomy, Faculty of Agriculture and Veterinary Sciences, Mewar University Gangrar, Chittorgarh (Rajasthan) during Rabi season of 2022-23 to effect of integrated nutrient management on growth and yield characters of barley variety “Rd-2036‟ was used in this study. The required quantities of fertilizers as per treatments were applied. The experiment was laid out in randomized block design with three replications consisting of nine treatments combinations. The increased yield parameter such as number of per siliqua, seed yield, stover yield harvest index was recorded with T9 (Azotobacter + PSB + 30 kg ha-1 N through inorganic Fertilizer + 30 kg ha-1 N through poultry manure). The data revealed that the maximum plant height (97.05 ccm), total numbers of tillers (70.25) and yield attributes spike length (7.68 cm), number of grains/spike (44.96), grain yield (42.58 q/ha), straw yield (60.15 q/ha), biological yield (102.73 q/ha) and net return (53406.30 Rs/ha) was recorded with treatment T5-75% RDF + PSB + Azotobacter.
Physicochemical Characterization of Oil and Chitosan Extracted from Cross Breed and Bivoltine Hybrid Silkworm Pupae: A Comparative Analysis
Authors: Gulabrao Dukare Pradip , Amarnatha N. , Narayanaswamy K. C. , Reddy R. Narayana , Jagdish K. S. , Gowda Manjunath
Published: August 2024

The oil and chitosan were extracted from silkworm pupae and analysed its physicochemical properties. Oil content in silkworm pupae ranged from 26 to 28 % on a dry weight basis. Notably, female pupae had a higher oil content (27.99 %) compared to males (27.03%). Further, bivoltine hybrids exhibited a slightly higher oil content (27.65 %) than cross breeds (27.30 %). In comparison to edible oils like groundnut oil and sunflower oil, the pupal oil showed favourable results in terms of moisture content, iodine value and saponification values, indicating quality similar to edible oils. However, acid value of silkworm pupal oil (1.570 mg KOH/g oil) was lower than that of groundnut oil (3.125 mg KOH/g oil). The acid value and peroxide value were found to be lower than three in pupal oil samples, revealed that pupal oil is good for edible purposes and indicates good oxidative stability. Among the samples, Chitosan content was higher 2.526% in the cross breed (PM × CSR2) than bivoltine hybrid 2.308%. Male silkworm pupae had a higher chitin content (3.242%) compared to female pupae (3.013%) and chitosan content was also higher (2.430%) in male pupae than in female pupae (2.345%). Pupal chitosan shows better solubility (99 %), degree of deacetylation (>85%) and ash content (<1%). These physicochemical properties were achieved the desired level for utilizing the silkworm pupal oil and chitosan as commercial utilization.
Enzyme Response in Thermotolerant Silkworm Breeds under Beauveria bassiana Infection
Authors: S.R. Manjunatha , Narayanaswamy K.C. , Gowda Manjunath , P. S. Benherlal
Published: August 2024

A study on enzyme activity in thermotolerant bivoltine silkworm breeds under Beauveria bassiana disease was conducted at the Department of Sericulture, UAS, GKVK, Bengaluru during 2021-23. Thermotolerant bivoltine breeds viz., B1, B4 and B8, were resistant to muscardine and CSR4, a muscardine susceptible breeds were used in this study. A batch of silkworms of all the breeds were inoculated with 6.86 × 104 spores / ml of B. bassiana @ 0.5 ml per silkworm immediately after 4th moult and another batch were reared under normal condition. The haemolymph was collected from these breeds at 48, 96 and 144 hours post inoculation (hpi) with B. bassiana spores in both inoculated and control batches. Biochemical estimation of amylase, protease and trehalase enzyme activities in the haemolymph. The amylase activity increased from 48 hpi to 144 hpi in all the breeds under both control and muscardine inoculation, but being lesser under inoculation. The protease activity was found higher in B1 breed from 48 hpi to 144 hpi under both control and inoculated conditions. Trehalase activity was enhanced at all time intervals under control conditions in B1, B4 and B8 breeds and CSR4 breed shows decreased at 144 hpi under both control and inoculation conditions. Thus increased enzyme activity in B1 and B4 breeds could be associated with their better performance for survival and economic parameters under inoculated condition. The correlational studies revealed that haemolymph amylase, protease and trehalase were found to be positively corelated with cocoon weight (g) and negatively correlated with larval mortality (%). Thus, the study revealed that silkworm breeds like B1, B4 and B8 as productive breeds and hence may be used for future breeding programmes for evolution of new robust silkworm breeds.