bluuebunny/crossref_metadata_2025 huggingface dataset:
Undersökning av ägg från vinterlekande fiskarter 2017-2022 i Bohusläns skärgårds- och fjordområden
Authors: Svensson Filip , Wernbo Anders , Johannessen Peter , Svenson Anders , Wennhage Håkan , Thorvaldsson Baldvin , Jakobsson Peter
Published: June 2024

Denna rapport sammanfattar resultaten från äggundersökning av pelagiala fiskägg i skärgårds- och fjordområdena mellan Smögen och Stenungsund under första och andra kvartalet för åren 2017- 2022. Totalt kunde ägg från 25 olika fiskarter identifieras med hjälp av DNA-sekvensering. För dessa fiskarter kunde tidiga äggstadier, som indikation för lokal lek, identifieras för 19 olika arter däribland kommersiellt viktiga fiskarter så som torsk (Gadus morhua), rödspätta (Pleuronectes platessa), äkta tunga (Solea solea) makrill (Scomber scombrus) och skarpsill (Sprattus sprattus). I analysen delades fiskäggen upp i två storleksfraktioner: ägg med diameter större eller lika med 1,2 mm och ägg mindre än 1,2 mm. Ägg i den större storleksfraktionen analyserades med avseende på art, storlek och utvecklingsstadie för varje lokal (ett håvdrag), ägg i den mindre storleksfraktionen slogs samman per område (ex. alla lokaler i en fjord) och där analyserades endast artsammansättning av DNA-sekvenser i det sammanslagna provet. I den större storleksfraktionen förekom flest ägg av torsk, skarpsill, rödspätta och lerskädda (Hippoglossoides platessoides), och i den mindre storleksfraktionen dominerade dna-sekvenser från sandskädda (Limanda limanda), skrubbskädda (Platichthys flesus), vitlinglyra (Trisopterus esmarkii), glyskolja (Trisopterus minutus) och femtömmad skärlånga (Ciliata mustela).
ANÁLISE DE UMIDADE EM AMOSTRAS DESIDRATADAS DA BANANA-MAÇÃ EM FUNÇÃO DO TEMPO
Authors: Couto Myllena Christina Goecking , Januzzi Ana Flávia do Vale , Abreu Gabriela Maria Santos , Estevam Jonathan de Oliveira , Rosa Naiara Lopes
Published: June 2024

A banana é uma fruta de elevado valor nutricional. Aproximadamente 30 % da banana produzida no país perdem-se somente na fase pós-colheita, sendo um produto altamente perecível, pois apresenta em sua composição cerca de 70 % de água livre. Isso justifica a busca por novas tecnologias para conservação dessa fruta. O objetivo deste trabalho foi realizar secagens em estufa a 105 °C, de amostras de banana-maçã de diferentes espessuras, analisar a influência da temperatura sobre a perda de umidade, análise gráfica e definição do tempo médio de secagem, para projeção a nível industrial. Sendo assim, ao submeter as amostras a 105 °C pelo período de 6 horas, foi removido das amostras de 5 mm 71,58 % de umidade e das de 10 mm 67,68 %. Pode-se perceber que a taxa de secagem diminui com o aumento da espessura, e para as amostras de 5 mm, a velocidade de secagem é maior. Isso está relacionado com o processo de difusão que ocorre do interior da amostra para sua superfície. Após a análise gráfica, pode-se notar que em ambos há um período de estabilidade da curva. Para a espessura de 5 mm, o tempo de equilíbrio é t = 4 h, e para a espessura de 10 mm, t = 5 h. Em escala industrial, continuar o processo de desidratação após esse tempo de equilíbrio, seria um gasto desnecessário de energia e dinheiro, já que a quantidade de água removida nesse período é mínima.
A ATUAÇÃO DA COORDENAÇÃO PEDAGÓGICA COM AS TECNOLOGIAS DIGITAIS: UM RELATO DE EXPERIÊNCIA ESCOLAR NA UEB PRIMAVERA
Authors: Moura Eliany Santos Alves , Ferreira Sephora Santana Souza
Published: June 2024

Este estudo abrange uma experiência da Coordenação Pedagógica com o uso das tecnologias digitais, desenvolvida na Unidade de Educação Básica Primavera no município de São Luís /MA. Discutiremos a luz de aportes teóricos sobre o usos das tecnologias digitais na educação para poder fundamentar uma descrição sucinta das atividades desenvolvidas com os professores (as) da etapa da Educação Infantil, envolvendo essas tecnologias. Dentre as ações da coordenação pedagógica destacam-se a criação de sites, arquivo e socialização de documentação pedagógica, construção de fichas de frequência on-line, formações por meio do Google meet, desenvolvimento de cadernos orientadores, curadorias, salas virtuais de cursos de formação continuada, planejamento participativo e interativo.  Por meio desses recursos digitais obtivemos resultados positivos de organização do trabalho pedagógico, de mediações entre a equipe docente e equipe diretiva, de acesso as informações e fluxo do planejamento das ações didáticas e de intercâmbio com a comunidade escolar.
The Theory of the Four Illusions of the Thinker Francis Bacon A Critical Study in the Light of Islam
Authors: Al-Zahrani Nada
Published: June 2024

Scientific research has many approaches to reaching correct knowledge and actual sciences. The most prominent approach was the experimental approach, which helps in build civilisations, using observation and experimentation to reach accurate results and to know the proper ways to deal with and explain phenomena. Therefore, this research includes the most crucial method which is the experimental method. Specifically, the most important modern theories are the four delusions of Francis Bacon and their criticism through an Islamic vision based on evidence and proof. As a result, it was found that the most essential theories of Francis Bacon are the mind’s criticism theory, the four delusions theory, which is based on the mind’s criticism theory, and the theory of material understanding of nature. The latter is closely related to the four delusions that Bacon fought because they hinder the mind from achieving the truth, which are the illusions of the tribe, the illusions of the cave, the illusions of the market, and the illusions of the theater, and by looking at them from a legal perspective, it is clear that ignorance and whim are the basis for man’s deviation from the truth. It is recommended to conduct scientific studies between Ibn Taymiyyah as an Islamic thinker and Francis Bacon as a Western thinker. Also, more research and studies should be conducted on the curricula of Western thinkers.
Controls of Human Humanity and its Purposes in Light of the Hadiths of the Two Sahihs: A Recent Analytical Study
Authors: Alazzam Najah , Alomari Mohammad
Published: June 2024

The study aims to highlight human humanity's controls and purposes by identifying their inherent manifestations from prophetic Sunni sources. It also identifies several controls on human responsibility and purposes through Al-Ahadith Alsahihyn, emphasizing the importance of authentic Sunni sources in their preservation and control. To achieve its objectives, the study followed the collective approach, based on the graduation of the prophetic texts under study collected and selected from the Bukhari and Muslim health as the most important codes of the perceived prophetic year. The study also used the extractive analytical approach: the study of prophetic conversations on human disciplines, purposes, and analysis, to address precise values. The study found several findings, most notably the diversity of human responsibility controls and their multiplicity in the prophetic year. Religious aspects, including social aspects, Islam's desire to form an integrated Islamic personality in all spheres of its life; the study also found the essential purpose of human humanity in the prophetic year, including achieving the goal for which it was created: God's worship is blessed and uplifting, realizing the principle of exclusion in the architecture of the universe and utilizing its treasures.
Experimental Analysis of Light Weight Concrete by Using of Light Weight Aggregat
Authors:   Department of Civil Engg. Galgotia‟s College of Engg. & Technology, Greater Noida, Kumar Mr. Anoop
Published: June 2024

This project investigates light weight concrete by replacing coarse aggregate with Light weight Aggregate (LWA). The methodology involves meticulous data collection, analysis, material selection, and the design of M30 grade concrete. It aims to evaluate how different proportions of LWA replacement affect concrete properties. Beginning with data gathering on conventional concrete mixes and LWA properties, material selection balances structural integrity with light weight characteristics. Varying percentages of LWA replacement (0%, 20%, 40%, and 50%) are then incorporated into the design phase, followed by precise mixing to maintain consistency. Concrete specimens undergo tests including slump, compaction factor, cube casting, and rebound hammer testing to evaluate workability, compact ability, and compressive strength. The project highlights the importance of the compressive test in determining concrete strength. Through meticulous analysis, it discusses LWA's effects on properties like workability, density, and durability, contributing insights into sustainable construction practices and emphasizing empirical analysis for engineering material selection. Key words LWA-Light Weight aggregate, LWC- Light Weight concrete, LECA- Light Weight expended clay aggregate, conplast SP430(G), Fosroc, SSD – Saturated Surface Dry, DRY WEIGHT – Dry Weight of Material.
Development of Cookies Using Fruit Waste Peel Powder
Authors:   Shriram College of Agricultural Engineering, Paniv, Zambare Amit V.
Published: June 2024

The main objective of the investigation was to prepare peel powder from pineapple, banana & watermelon fruit and prepare cookies by using its different compositions. The recipe for cookies was formulated and studied by keeping all the other ingredients same except varying compositions of cornific and fruit peels powder. All ingredients were weighed according to different compositions, in which milk powder (4%), custard powder (4%), sugar flour (25%), ghee (23%), baking powder (0.5%), milk (4%) and salt (0.5%) were kept constant for all the compositions. Three compositions of fruit peel powder (pineapple, banana and watermelon) in 1:1:1 proportion were (9%), (15%) and (21%) respectively. The cookies were evaluated for sensory qualities and the most acceptable cookies were selected for nutritional analysis. Results of sensory evaluation showed that sample with pineapple, banana and watermelon peel powder as 9% in 1:1:1 proportion was most accepted. Nutritional analysis reported that cookies with cornific only contains energy (258 Kcal), protein (1.93 g), fat (16.21 g) and crude fiber (0.08 %) whereas most accepted sample contains energy (290 Kcal), protein (2.85 g), fat (19.11 g) and crude fiber (0.11 %). Keywords: Fruit peel, Sensory qualities, Statistical analysis, nutritional analysis
A STUDY ON FINANCIAL LITERACY OF EMPLOYEES WITH REFERENCE TO TEAMPRO HR AND IT SERVICES LTD
Authors: RAMAN Dr.P.
Published: June 2024

In today's dynamic economic landscape, financial literacy has emerged as a crucial skillset forindividuals, impacting their pers onal well- being and organizational effectiveness. This abstract delves into the significance of fostering financial literacy among employees within organization. Financial literacy encompasses the knowledge, skills, and attitudes necessary to make informed financial decisions. Research indicates a strong correlation between financial literacy and various outcomes, including improved financial wellness, reduced stress, and enhanced productivity. However, despite its importance, many employees lack adequatefinancial knowledge, leading to detrimental consequences for both individuals and employers. This abstract highlight the multifaceted benefits of promoting financial literacy in the workplace. Firstly, it enhances employees' ability to manage their finances effectively, leadingto greater financial security and resilience. Thesample size is 160. The tools used are non- parametric test (U-test, H-test, Chi-square, Correlation, Run test). Key Words— Financial literacy, dynamic, financial security, financial wellness
The Impact of Social Media Influencers on Consumer Behaviour
Authors: bansal Suyash
Published: June 2024

This study examines the intricate relationships that exist in the contemporary digital world between social media influencers and consumer behavior, emphasizing the critical role that influencers play in influencing consumer preferences, purchasing decisions, and perceptions of brands. Using a mixed-methods approach that incorporates surveys, interviews, and quantitative analysis of social media engagement indicators, the research looks at how influencers impact consumer behavior. It highlights the importance of relatability, trust, and honesty in fostering a relationship between influencers and their followers. Some of the main themes that were looked at were the following: the features of successful influencer marketing campaigns; ethical considerations such as honesty and transparency; the sustainability of influencer marketing in the face of shifting social media trends; and the potential for influencer fatigue. Keywords: Digital marketing, social media engagement metrics, customer behavior, influencer marketing campaigns, and social media influencer fatigue
Suicidal ideation and its associated factors among high school adolescents in Haiphong, Vietnam
Authors:   Faculty of Public Health, Haiphong University of Medicine and Pharmacy, Haiphong, Vietnam, Thuy Ha Tran Thi , Thi Mai Pham ,   Haiphong Medical University Hospital, Haiphong, Vietnam, Minh Duc Cap ,   Faculty of Public Health, Haiphong University of Medicine and Pharmacy, Haiphong, Vietnam
Published: June 2024

Suicide is a serious and preventable public health issue. This study aimed to identify the prevalence and associated factors of suicidal ideation (SI) among high school students. This cross-sectional study was conducted among 1,270 high school students. The Global School Student Health Survey (GSHS) questionnaire examined SI and related factors. The participant was identified as having SI by the question, “During the past 12 months, did you ever seriously consider suicide ideation?”. Overall, 16.9% of the participants reported having SI during the last year (17.1% males and 16.7% females). Multivariable analysis indicated several factors positively associated with SI: being bullied during the last 30 days (AOR= 2.15, 95%CI: 1.23-3.77), often feeling lonely in the last 12 months (AOR= 1.95, 95%CI: 1.10-3.44), worried and could not sleep at night in the last 12 months (AOR= 4.40, 95%CI: 2.64-7.34), tobacco use in the last 30 days (AOR= 3.76, 95%CI: 1.66-8.54), alcohol use in the last 30 days (AOR= 1.83, 95%CI: 1.26-2.65), no close friends (AOR= 2.03, 95%CI: 1.30-3.17), parents/guardians did not regularly check homework in the last 30 days (AOR= 1.57, 95%CI: 1.09-2.25), parents/guardians did not understand problems and worries of students in the last 30 days (AOR= 3.32, 95%CI: 2.04-5.42) and parents/guardians often displayed disrespect in the last 30 days (AOR= 1.63, 95%CI: 1.13-2.36). SI is widely recognized as a significant predictor of future suicide risk. Therefore, schools, parents, and policymakers need to urgently take measures to prevent deaths from occurring.
Applications of Matrix Multiplication
Authors: Saeed Hayatullah , Nazari Mohammad Azim
Published: June 2024

In this paper we present some interesting applications of the matrix’s multiplication, that include the Leslie matrix and population change, which we calculate this kind of changes from year to other year by matrix multiplication. Another important part of the paper is Analysis of Traffic Flow, we represent the flow of traffic through a network of one-way streets. Another much important part is the production costs, this is fantastic usage of matrix multiplication, in which, A company manufactures three products. Its production expenses are divided into three categories, here in this paper we well describe this beautiful issue. By matrix multiplication, we can encode and decode messages. To encode a message, we choose an  invertible matrix  and multiply the uncoded row matrices (on the right) by  to obtain coded row matrices, this idea will be clarify by some useful examples. Also we used to study certain relationships between objects by matrix multiplication. We will clarify all of these applications by useful examples. In this paper, we present six different applications of matrix multiplication.
موقف النبي محمد صل الله عليه واله من مسألة نظام الحكم من بعده دراسة في الواقع
السياسي العربي
Authors: النصرالله جواد
Published: June 2024

مــن أهــم المســائل التــي أثــيرت في الفكــر الســياسي الإســلامي، مــا موقــف
النبــي مــن مســألة نظــام الحكــم مــن بعـده، فهنـاك مـن يـرى أن النبـي محمـد (ص) لم
يكـن لـه رأي في مسـألة نظـام الحكـم مـن بعـده، وأدلتهـم في ذلـك أن النبـي أدرك قـوة
الشـعور القبـلي عنـد العـرب وهـو مـا يعنـي رفـض نظـام الوراثـة، أو أن النبـي (ص) أراد أن
يـترك للأمـة حريـة اختيـار نظـام للحكـم يتناسـب مـع متغـيرات الزمـان والمـكان، وهنـاك
مـن يـرى أنـه يجـب أن يكـون للنبـي رأي في مسـألة نظـام الحكـم مـن بعـده وأدلتهـم أن
دعـوة النبـي شـاملة لـكل شيء ومنهـا نظـام الحكـم الـذي عـلى أساسـه يمكــن تطبيــق
الريعــة أو لا، لأن النــاس عــلى ديــن ملوكهــم، ثــم أن منهــج النبــي (ص) في حياتــه
قائــم عــلى أنــه كان يسـتخلف شـخصا مكانـه حينـا يذهـب للحـرب أو العمـرة أو أي مـكان
آخـر، فضـلا عـن ذلـك أن النبـي (ص) مـدرك للأخطــار الخارجيــة (الساســانية
والبيزنطيــة،) والداخليــة، وهــم اليهــود والمنافقــين ومدعــو النبــوة، وكل ذلــك كان
خطـرا يهـدد دولـة النبـي (ص) الـذي يفـرض عليـه أن يؤمـن مسـتقبل دولتـه الناشـئة
THE EVOLUTION OF THE INCENTIVES FOR ANTI-CORRUPTION CORPORATE COMPLIANCE PROGRAMS IN THE INTERNATIONAL LEGAL ORDER
Authors:   School of Law of the Getulio Vargas, Viol Dalila Martins ,   Foundation São Paulo, USA
Published: June 2024

The corporate compliance programs have proliferated worldwide in the last two decades. This innovative study explores the role of the International Anti-Corruption Regime (IACR) in this phenomenon. Analyzing documents from 18 international actors, it identifies 52 directly promoting compliance programs, beginning in 2002, after the regime’s 1996 inception. These promotions are primarily in non-binding instruments, which present compliance programs as an anti-corruption strategy for business, government, and collective actions. This mapping reveals a transition in the IACR’s inception of these programs, starting from a bribery-focused to a broader anti-corruption approach, and more recently endorsing a connection with the Environmental, Social, and Governance (ESG) agenda. This article also offers insights about the link between the IACR and countries' legal reforms promoting compliance. Shedding light on compliance program evolution within the IACR, the study contributes to understanding the strategy’s rise and to an emerging legal scholarship in international compliance studies. Keywords: International Law, Anti-Corruption, Corporate Compliance Programs, Legal Incentives
THE EXPLANATIONS ONE NEEDS FOR THE EXPLANATIONS ONE GIVES—THE NECESSITY OF EXPLAINABLE AI (XAI) FOR CAUSAL EXPLANATIONS OF AI-RELATED HARM:DECONSTRUCTING THE ‘REFUGE OF IGNORANCE’ IN THE EU’S AI LIABILITY REGULATION
Authors:   National Foundation for Scientific Research (FNRS), Grozdanovski Ljupcho ,   Faculty of Law, Political Science and Criminology, University of Liège.
Published: June 2024

This paper examines how explanations related to the adverse outcomes of Artificial Intelligence (AI) contribute to the development of causal evidentiary explanations in disputes surrounding AI liability. The study employs a dual approach: first, it analyzes the emerging global caselaw in the field of AI liability, seeking to discern prevailing trends regarding the evidence and explanations considered essential for the fair resolution of disputes. Against the backdrop of those trends, the paper evaluates the upcoming legislation in the European Union (EU) concerning AI liability, namely the AI Liability Directive (AILD) and Revised Product Liability Directive (R-PLD). The objective is to ascertain whether the systems of evidence and procedural rights outlined in this legislation, particularly the right to request the disclosure of evidence, enable litigants to adequately understand the causality underlying AI-related harms. Moreover, the paper seeks o determine if litigants can effectively express their views before dispute-resolution authorities based on that understanding. An examination of the AILD and R-PLD reveals that their evidence systems primarily support ad hoc explanations, allowing litigants and courts to assess the extent of the defendants' compliance with the standards enshrined in regulatory instruments, such as the AI Act. However, the paper contends that, beyond ad hoc explanations, achieving fair resolution in AI liability disputes necessitates post-hoc explanations. These should be directed at unveiling the functionalities of AI systems and the rationale behind harmful automated decisions. The paper thus suggests that ‘full’ explainable AI (XAI) that is, both ad hoc and post hoc, is necessary so that the constitutional requirements associated with the right to a fair trial (access to courts, equality of arms, contradictory debate) can be effectively met. Keywords: AI, Causation, Explainability, Fair Trial, Procedural Fairness, Equality of Arms, Effective Participation, AI liability, Product Liability, AI Act, AI Liability Directive, Product Liability Directive
Wulf Noll. Teil 2: Grenzgänger zwischen Europa und Asien
Authors: Noll Wulf , Tepe Peter
Published: June 2024

Teil 2 besteht aus einem Interview mit dem Grenzgänger zwischen den Kulturen Europas und Asiens, vor allem Japans und Chinas.
Sándor Barics: MARS und Sonnenflecken
Authors: Tepe Peter
Published: June 2024

Im Interview kommen zunächst die Entstehungsgeschichte der bei Sándor Barics vorliegenden Verbindung zwischen Kunst und Wissenschaft und die während des Kunststudiums in New York erlangten Impulse für die weitere Entwicklung zu Sprache. Der Besuch einer Veranstaltung über den Mars änderte dann seine künstlerische Position: Die Serie MARS entstand. Deren künstlerisches Konzept wird herausgearbeitet. Auf vergleichbare Weise wird schließlich die Serie Sonnenflecken behandelt.
Development of antioxidant film based on gelatin and carboxymethylcellulose incorporated with Tecoma stans (L.) Juss. ex Kunth Petals extract for biodegradable food packaging
Authors: RATANASONGTHAM Pacharawan , SUKPLEE Passara , WONGNONGWA Yutthana
Published: June 2024

The aim of this research was to develop a novel combination of antioxidant blended film for use as biodegradable packaging in the food industry.  The antioxidant film was prepared based on gelatin (G) and carboxymethyl cellulose (CMC) incorporated with Tecoma stans (L.) Juss. ex Kunth petals extract (TKE) at various concentrations (0.5, 1.0, and 2.0 mg∙L‒1) via solution casting method. The structural and surface morphology of G/CMC-TKE film were characterized using FTIR spectrometry technique and scanning electron microscopy (SEM), including determining antioxidant activity, water solubility, water vapor permeability, and biodegradability. According to FTIR analysis, the significant interaction between the gelatin and CMC chain is associated with hydrogen bonding. Adding TKE into the blended films significantly increased their roughness, thickness and antioxidant activity while decreasing their water solubility and water vapor transmission. Likewise, the biodegradability of the films containing antioxidants exhibited greater degradation values than the pure G/CMC film, and all of the biofilms was entirely degraded (>80%) in 14 days. The G/CMC-TKE 2.0 demonstrated the best antioxidant (74.47%), biodegradable activity (95.85% in 14 days), and the lowest water solubility (61.80%) and water vapor transmission rate (3.2483 g∙m‒2∙day‒1), which could be a feasible candidate for the food active packaging.
The effect of mixing sequence on synthesis of PP-g-GMA compatibilizer for multilayer packaging (MLP) compounding
Authors: RADINI Fitri Ayu , APRIYANI Firda , SWASONO Yogi angga , RUDIANTO Reza Pahlevi , SAMBUDI Nonni Soraya , BUYS Yose Fachmi
Published: June 2024

Melt recycling Multilayer Packaging (MLP) waste is difficult due to challenging separation procedures. However, blending techniques with compatibilizers can simplify MLP waste melt recycling. PP-g-GMA is a common compatibilizer in polyolefin and PET blends. PP-g-GMA compatibilizer was synthesized by utilizing an internal mixer at 175℃, 50 rpm, and 10 min using styrene as a comonomer. Titration was a method to examine effect of three different sequences of adding the BPO initiator on GMA grafting. Each sequence's PP-g-GMA samples were compounded with MLP waste using a twin-screw extruder and injection molded to make tensile test specimens. FTIR analysis shows that the GMA and Styrene monomers had grafted onto the PP polymer backbone, with the GMA grafting degree by varying mixing sequence. Sequence 3, which introduced initiator, GMA, and styrene simultaneously to PP melt, yielded PP-g-GMA with the most significant GMA grafting degree of 5.11%. Adding PP-g-GMA produced from sequence 3 into the MLP melt enhanced the highest increase in tensile strength and elongation at break of the MLP/PP-g-GMA compound.
The mechanochemistry of lanthanum dihydride (LaH\(_{2}\)) with hydrogen (H\(_{2}\)) using the ball-mill process and the effect of oxidation on the resulting products
Authors: PRAMONO Andika Widya , HERBIROWO Satrio , IMADUDDIN Agung , ANTORO Iwan Dwi , NUGRAHA Heri , Hendrik  , SYAMPURWADI Anung , NUFUS Ines Hayatun , UMNA Nihayatul , DIBA Silvia Farah , AMALIYAH Fina Fitratun
Published: June 2024

The complex behavior of LaH2 during ball milling was investigated in this study, with its mechanical, chemical, and morphological changes explored. The relationship between milling time and hydrogen pressure reduction was uncovered through detailed experiments, reflecting the dynamic nature of the process. A transient yet significant event was observed upon unsealing the milling jar post-milling: the emergence of a minor fire ember, indicative of the interplay between mechanical forces and chemical reactivity within the LaH2 powder. Profound changes in the structure, composition, and shape were unraveled using advanced techniques such as X-ray diffraction (XRD), scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy (SEM/EDX), and particle size distribution analysis. The resulting powder exhibited a dual-phase composition of lanthanum dihydride (LaH2, 68.1% to 71.5%) and lanthanum oxide (La2O3, 28.5% to 31.9%), reflecting a dynamic chemical equilibrium during milling. Particle size distribution analysis revealed a notable increase in average diameter to 6420 nm, accompanied by a polydispersity index (PDI) of 0.831, signifying a broadening compared to the initial LaH2 powder. The morphological evolution of the powder was elucidated through SEM imaging, showing predominantly spherical and rounded forms, indicating extensive particle agglomeration and plastic deformation during milling. Additionally, the formation of oxide layers on the powder surface, intertwined with pronounced particle agglomeration, was highlighted through EDX mapping, shedding light on the mechanical aspects of morphological evolution during milling. These findings contribute to our understanding of LaH2 behavior under extreme mechanical and chemical conditions and have implications for materials processing, hydrogen storage technologies, and broader applications in materials science and engineering.
Enhancing the efficiency of hemp fiber dyeing with natural dyes: Indigo and lac
Authors: CHOUYTAN Jadsadaporn , THIRAWAT Rajapol , KHOTRADHA Dhea , RUANGTEPRAT Tanawat , SITTITANADOL Ing-orn , UDON Somchai
Published: June 2024

Hemp fibers dyed with natural dyes are environmentally sustainable, but it is typically difficult to achieve an intense shade and washing durability. In this study, mercerization and cationization using polyelectrolyte, Poly-diallyldimethylammonium chloride (polyDADMAC), were chosen to enhance the dyeing efficiency and mechanical properties. Indigo and lac were chosen as natural dyes due to their widespread use. SEM demonstrated that untreated fibers contained the non-cellulose boundary layer on the surfaces, but after mercerization, the surfaces were smoother, making them suitable for absorbing natural dyes. In agreement with the FT-IR, the spectra of non-cellulose disappeared after mercerizing. Following cationization, the FT-IR spectra confirmed the consequences of using poly-DADMAC. Tensile testing demonstrated that mercerized hemp yarns were 34.1% stronger compared to untreated hemp yarns due to the decrease in non-cellulose content and that the intermolecular attraction of cellulose was not disturbed. The color strength and fastness properties were described by the K/S value. Mercerization considerably affected the K/S of indigo dyeing, while cationization affected lac dyeing significantly. Besides that, both treatments improved fastness properties as well.
Corrosion behavior of YSZ and YSZ/NiCo coatings on inconel 625 exposed alkali chlorides
Authors: DESIATI Resetiana Dwi , SUGIARTI Eni , HERMANTO Bambang , TIMUDA Gerald Ensang , IZZUDDIN Hubby , SALSABILLA Fraya Aulia , ANAWATI Anawati
Published: June 2024

Alkali chloride attack on boiler pipe walls is considered the main problem of corrosion in the waste-to-energy (WTE) industry, even though uses superalloy. Electrophoretic deposited (EPD) yttria-stabilized zirconia (YSZ) coating is carried out to protect the Inconel 625 substrate. YSZ is deposited directly both on the Inconel 625 substrate and NiCo-Inconel 625. Corrosion resistance was conducted using the 3.5% NaCl electrochemical test and the hot salt corrosion test at 600°C in alkaline salt media such as NaCl, KCl, and CaCl2. The potentiodynamic polarization curve shows that the YSZ coating deposited on the substrate (single-layer) has a corrosion rate of 0.065 mm∙y‒1, lower than that deposited on NiCo coating (double-layer). The double-layer, NiO2 is formed in the NiCo layer due to the NaCl solution being trapped. Meanwhile, in hot salt corrosion at 600°C, CaCrO4 is formed as a protective oxide layer. Furthermore, in the double-layer, an imperfect oxide layer is formed causing spallation and coating failure. The corrosion rate for single-layer hot salt corrosion for 40 h is 0.310 mm∙y‒1. As a result, the corrosion resistance of the single-layer is increased by the presence of the Cr2O3 oxide layer formed during sintering.
Study of titanium alloy Ti–Al–Zr–Nb–V during heating under deformation and its phase transformation features
Authors: KENZHEGULOV Aidar , MAMAEVA Axaule , PANICHKIN Aleksander , IMBAROVA Akerke , KSHIBEKOVA Balzhan , AUBAKIROVA Rashida , SATKANOVA Natasha , TOIYNBAEVA Nazgul
Published: June 2024

An alloy based on Ti–Al–Zr–Nb–V was prepared and its deformation behavior at elevated temperatures was studied. The microstructure and phase of the alloys were characterized by optical microscopy, scanning electron microscopy, thermal analysis, and mechanical testing. The results showed that the Ti–Al–Zr–Nb–V alloy, when stretched, exhibits a superplasticity effect in the range of  975℃ to 1100℃, with an elongation of up to 400%. It was found that superplasticity develops in the temperature region of the α+β→β transition and is accompanied by a change in grain size and redistribution of alloying elements among phases.
Leonardite humic acid activated carbon/MnO\(_{2}\) composite nanostructures for supercapacitors
Authors: AUSAVASUKHI Artit , SIRIPHALA Thanchanok , LIMPHIRAT Wanwisa , NILMOUNG Sukanya
Published: June 2024

Abstract
This work reports the preparation and electrochemical studies of activated carbon derived from leonardite humic acid composited with MnO2 for supercapacitors. Activated carbon contains high conductivity, high specific surface area, and accommodates large volume expansion/contraction during charging/discharging process. Meanwhile, MnO2 has very high theoretical specific capacity (1370 F∙g‒1). Their composite could significantly improve both the storage performance and cycle stability of supercapacitors. Moreover, humic acid from leonardite was selected to add value to this waste and reduce environmental pollution.  By varying the carbonization temperature (500℃ to 800℃), the prepared samples carbonized at 800℃ exhibited fascinating properties. The oxidation state of Mn ions was in the mixed state of Mn+2 (41.2%) and Mn+2, +3 (52.8%). A gravimetric capacitance of 329 F∙g‒1 and 294 F∙g‒1 were observed at 2 mVs-1 and 0.5 Ag-1, respectively. The remaining gravimetric capacitance of 193 F∙g‒1 was evaluated at 1000 cycles, indicating its high cycle performance.  Moreover, the gravimetric energy of 37.51 Wh∙kg‒1 and gravimetric power of 272.96 W∙kg‒1 were observed. When combined, the interesting electrochemical properties of leonardite humic acid-activated carbon/MnO2 composite nanostructures make them important options for supercapacitor application.
Biosynthesis of zinc oxide nanoparticles using water hyacinth extracts: Characterization, evaluation of antimicrobial and dye removal
Authors: SONTHONGPHITHAK Phiphat , MUANGNAPOH Chonchanok , RATANATAWANATE Chalita , E-KOBON Teerasak , PIYASAENGTHONG Akkharadet , HONGSACHART Piyorot , SRIUTTHA Manop , SENGKHAMPARN Nipaporn , DHANAPAL Anto Cordelia Tanislaus Anthony , WITTAYANARAKUL Kitiyaporn
Published: June 2024

In nanobiotechnology, synthesizing metal nanoparticles (NPs) using plant extracts has recently been increasing because of eco-friendly and low-cost methods. For this work, zinc oxide nanoparticles (ZnO NPs) have been synthesized by biosynthesis process using water hyacinth extracts (WHE). The water hyacinth (WH) was chosen because the WH is fast-growing and the most toxic aquatic plant in the world. Therefore, this work aims to apply these WHE to be a precursor in the biosynthesis of ZnO NPs (ZnOBio-NPs) based on the research of a sustainable environment. The ZnO NPs synthesized by the WHE were investigated for their antibacterial and photocatalytic activities. An UV-Vis spectrum showed a specific absorbance peak around 362 nm with an average band gap of 3.22 eV. As the result, TEM analysis revealed a triangle structure with an average size of about 64.05 nm. The peaks of XRD analysis show a hexagonal wurtzite structure. The ZnO NPs synthesized by the WHE showed higher antibacterial activity against S. aureus better than E. coli. It is interesting to note that the ZnOBio-NPs synthesized from the WHE can have an anti P. acnes (JB7) with a minimum inhibitory concentration (MIC) and a minimum bactericidal concentration (MBC) equal to 50 µg∙mL‒1 and 200 µg∙mL‒1, respectively. In addition, the ZnOBio-NPs also can effectively remove more than 90% of the malachite green within 180 minutes with extremely high reuse.
Instruções e modelo de artigo para o XXX Encontro da Sociedade Brasileira de Acústica (Sobrac)
Authors: Fonseca William D'Andrea
Published: June 2024

Este documento contém instruções para a escrita de artigos para o o XXX Encontro da Sociedade Brasileira de Acústica (Sobrac). Esse campo é destinado ao resumo do artigo que deve ter entre 180 e 300 palavras. O resumo, palavras-chave, title, abstract e keywords devem ser colocados na primeira página do artigo, buscando não se estender para a segunda página. O resumo deve fazer uma apresentação concisa do artigo técnico científico, contendo, uma introdução, o objetivo, uma síntese da metodologia, o principal resultado e a principal conclusão (preferencialmente nessa ordem). Não é necessário separar em itens ou seções dentro do resumo. Assim, o leitor pode conhecer a essência do conteúdo do artigo. Lembre-se que o resumo é como o trailer de um filme, as pessoas ficarão interessadas em ler completamente o artigo se o resumo lhes interessar. O resumo não deve conter informações novas não contidas no artigo; abreviações indefinidas; discussão prévia de outra literatura; referências e citações e excesso de detalhes acerca dos métodos empregados. Ele também não é o parágrafo de introdução do documento, isso deve ser colocado no início do texto. Utilize apenas informações úteis e relevantes, faça um exercício de empatia com o possível leitor interessado. Para se obter um resumo coeso, elegante e de acordo com o artigo, escreva uma prévia, realize a escrita completa do documento e, ao final, revise-o observando se o conteúdo dele reflete de forma consistente o teor do documento. Seguindo o resumo, o autor deve listar até cinco palavras-chave (evite colocar as mesmas palavras que formam o título do artigo). Após essa etapa, há ainda o título, resumo e palavras-chave em inglês.
La transacción como modo de extinción de la obligación tributaria frente al principio de simplicidad administrativa
Authors: Cabrera Lasso Daniela , Silva Barrera Esthela Paulina
Published: June 2024

El presente artículo aborda un tema crucial en el derecho tributario ecuatoriano, centrándose en la transacción como herramienta para resolver conflictos fiscales y su alineación con el principio de simplicidad administrativa. Se empleó una metodología cualitativa, utilizando métodos como la revisión bibliográfica, normativa y doctrinaria, para lo cual, se exploró la legislación tributaria ecuatoriana y el impacto que tiene sobre la temática desarrollada. Se investigó cómo la transacción, definida como un acuerdo entre el Fisco y el contribuyente, se integra con el principio de simplicidad administrativa, pero afecta el principio de reserva de ley, al cual se vinculan los sistemas de determinación tributaria para establecer los tributos debidos. El objetivo del estudio se centra en analizar la figura jurídica de la transacción como modo de extinción de la obligación tributaria en Ecuador, obligación que corresponde a fondos públicos, frente a los principios de simplicidad administrativa y reserva de ley, debido a que la transacción permite la modificación de valores determinados conforme a la ley.
Estabilidad laboral de trabajadoras durante el periodo de lactancia en instituciones del sector público
Authors: Pacheco Araya Guillermo Alejandro , Barrionuevo Núñez José Luis
Published: June 2024

En el marco normativo vigente, el análisis destaca las disposiciones legales actuales relacionadas con la protección de las trabajadoras durante la lactancia. Sin embargo, identifica lagunas y ausencias normativas que pueden exponer a las mujeres a situaciones de vulnerabilidad en el entorno laboral. El impacto en la igualdad de género constituye otro punto crucial. La falta de medidas específicas puede contribuir a la discriminación de género, y el artículo explora cómo políticas más inclusivas podrían fomentar la igualdad en el ámbito laboral, alineándose con los principios de equidad y no discriminación. La investigación se adentra en las condiciones concretas en el entorno laboral, examinando las facilidades para la lactancia en el trabajo. Esto incluye un análisis de las instalaciones disponibles y cómo estas contribuyen a crear entornos laborales que respaldan las necesidades de las madres lactantes. La flexibilidad laboral emerge como un tema relevante, considerando la necesidad de ajustar los horarios laborales para permitir que las mujeres en período de lactancia cumplan con sus responsabilidades profesionales sin comprometer la salud y bienestar de sus hijos. La experiencia de las trabajadoras y los desafíos que enfrentan durante el período de lactancia se explora a través de testimonios, proporcionando una visión realista de las dificultades y preocupaciones que pueden surgir en el entorno laboral.
Políticas públicas de avaliação na educação superior brasileira
Authors: Nascimento Claudenice Maria Véras , Anjos Claudiana Raymundo dos , Leite Lucas de Souza , Alves Edson Pantaleão
Published: June 2024

O presente artigo tem como objetivo analisar as políticas públicas federais de avaliação do ensino superior brasileiro, a partir das contradições dadas historicamente, no âmbito das relações sociais, políticas e econômicas, entre a década de 1980 e os dias atuais. Trata-se de uma pesquisa bibliográfica e documental, referente ao Programa de Avaliação da Reforma Universitária (PARU); Programa de Avaliação Institucional das Universidades Brasileiras (PAIUB); Exame Nacional de Curso (ENC/Provão); e Sistema Nacional de Avaliação da Educação Superior (Sinaes). Como resultados, nossa pesquisa evidenciou que muitas vezes as políticas públicas de avaliação PARU, Provão e Sinaes, foram e ainda são utilizadas como práticas avaliativas autoritárias, controladoras e regulatórias, cunhadas em ideologias neoliberais e mercadológicas, em cumprimento às normas do Estado. Uma exceção deve ser feita ao espaço/tempo em que as universidades vivenciaram as práticas avaliativas emancipatórias do PAIUB, que possibilitaram a implantação da avaliação institucional entendida como processo contínuo interno, envolvendo alunos, docentes e servidores técnico-administrativos na articulação e integração dos objetivos da instituição. Outro dado percebido foi a relação dialética entre estrutura social e ação humana, tomadas historicamente e, portanto, em permanente movimento de construção e reconstrução.
Inteligência artificial na gestão pública brasileira: desafios e oportunidades para a eficiência governamental
Authors: Vasconcelos Eduardo Silva , Santos Fernando Augusto dos
Published: June 2024

A integração da Inteligência Artificial (IA) na gestão pública representa uma revolução potencial na maneira como os serviços governamentais são entregues no Brasil. Este estudo explora as complexidades, oportunidades e desafios associados à adoção da IA, com foco especial na análise das barreiras éticas, legais e tecnológicas que moldam essa transformação. Através de uma investigação detalhada, identificamos que, enquanto a IA tem o potencial de melhorar significativamente a eficiência, a transparência e a inovação nos processos governamentais, sua implementação enfrenta obstáculos significativos, incluindo infraestrutura inadequada, falta de dados de qualidade, desafios regulatórios e preocupações éticas profundas. O estudo destaca que a adoção eficaz da IA exige não apenas o aprimoramento da infraestrutura tecnológica e a capacitação de pessoal, mas também o desenvolvimento de um quadro legal robusto e políticas éticas que garantam o uso responsável da tecnologia. Argumenta-se que é crucial estabelecer regulamentações claras e mecanismos de governança para superar esses desafios, assegurando que a IA seja utilizada de forma ética e que contribua positivamente para a administração pública. As considerações finais reiteram a necessidade de uma abordagem holística e cuidadosa, sugerindo que o sucesso na integração da IA dependerá significativamente de investimentos contínuos em tecnologia, educação e legislação. Além disso, propõe-se direções futuras para pesquisas que avaliem o impacto a longo prazo da IA e que explorem estratégias internacionais comparativas como benchmarking para aprimorar a legislação brasileira. Este trabalho conclui que a IA, se implementada de maneira responsável e estratégica, pode servir como uma alavanca poderosa para a modernização e a eficiência do setor público, melhorando a qualidade dos serviços oferecidos aos cidadãos e fortalecendo a transparência e a responsabilidade governamental.
Potencial produtivo e qualidade de frutos de cultivares de morangueiro em substrato
Authors: Paulus Dalva , Santin Anderson , Becker Dislaine
Published: June 2024

O cultivo de morangueiro representa uma atividade de importância econômica e social para agricultura familiar e em crescimento nas diversas regiões do país. Estudos do desempenho produtivo e qualidade de frutos das cultivares são fundamentais para informações de adaptação as diferentes condições climáticas dos locais de cultivo. O objetivo do trabalho foi avaliar cultivares de morangueiro de dias curto e neutro, e suas respostas em produção e qualidade de frutos no cultivo em substrato. O experimento foi conduzido em ambiente protegido, na Universidade Tecnológica Federal do Paraná – Campus Dois Vizinhos, Paraná, Brasil. O delineamento experimental foi o de blocos ao acaso, com oito cultivares (‘Camino Real’, ‘Camarosa’, “Benícia’, ‘Aromas’, ‘San Andreas’, ‘Albion’, ‘Portola’ e ‘Monterey’), com quatro repetições, conduzidas em sistema de cultivo em substrato. Os experimentos foram conduzidos nos anos de 2018 a 2019. Os frutos foram colhidos quando apresentaram 75% da coloração da epiderme vermelha. As cultivares Monterey, Albion, Camino Real e San Andreas apresentaram valores superiores de biomassa de fruto 15,3; 15,2; 15,0 e 14,0, respectivamente, em relação as demais cultivares.  As cultivares Camino Real e Benícia apresentaram a maior produção de frutos 777,50 e 746,50 g planta-1, respectivamente.  A média dos sólidos solúveis foi de 7,83 °Brix e a relação entre o teor de açúcar e acidez (9,76), sendo os frutos da cultivares avaliadas considerados doces e grau de maturação adequados para consumo in natura. Verificamos que as cultivares de dia curto Camino Real e San Andreas apresentaram maior produção de frutos, mas quando se pretende produzir cultivares de dia neutro e para produção no verão, as cultivares Monterey, San Andreas e Albion representam uma opção para os produtores, pois permitem a condução por mais de um ano de produção, além de produzirem frutos de bom calibre.
Burnout em profissionais de enfermagem durante a pandemia de COVID-19
Authors: Santos Carlos Felipe do Nascimento dos
Published: June 2024

O estresse ocupacional é resultado da maneira como um indivíduo lida com as demandas do trabalho e enfrenta os desafios. Inúmeras fontes podem gerar estresse, afetando o nível individual de estresse experimentado pelos enfermeiros. A pandemia exacerbou essas questões, dada a amplitude clínica da infecção por SARS-CoV-2. O enfrentamento de situações críticas, como as causadas pela COVID-19, pode expor os enfermeiros à exaustão de seus recursos psicológicos, aumentando os níveis de estresse e potencialmente culminando na Síndrome de BURNOUT (SB). Objetivos: Realizar uma análise dos fatores preditores da SB em enfermeiros durante a pandemia de COVID-19. Identificar elementos preditores associados à SB entre enfermeiros nesse contexto. Desenvolver estratégias para prevenção da SB durante a pandemia de COVID-19. Método: Esta pesquisa consiste em uma revisão de literatura com caráter descritivo, exploratório e qualitativo. Foram incluídos trabalhos publicados entre 2020 e 2023, com palavras-chave como Enfermeiro, Covid-19, Esgotamento Psicológico e BURNOUT em seus resumos. A amostra incluiu nove artigos científicos, sendo cinco da base de dados SCIELO, dois da LILACS e dois da PUBMED. Resultados: Os principais fatores preditores encontrados neste estudo foram sobrecarga de trabalho, comprometimento da interação social, entre outros. Um quadro foi elaborado, indicando as principais medidas nas estratégias de prevenção da SB, tais como apoio multiprofissional, jornada de trabalho reduzida, suporte psicológico, benefícios financeiros, conforto habitacional, oficinas de capacitação e atualização. Além dessas estratégias, é crucial que os enfermeiros atuem de maneira acolhedora, utilizando seus conhecimentos profissionais para identificar precocemente sinais e sintomas da SB, encaminhando os profissionais para tratamento especializado. Conclusão: Ressalta-se a importância e relevância de pesquisas nesse tema, fornecendo subsídios para novos estudos e ampliando as discussões sobre o impacto da pandemia de Covid-19 na saúde mental dos enfermeiros. É imperativo que, com base nesses conhecimentos, sejam propostas intervenções capazes de reduzir os impactos devastadores sobre a saúde mental dos enfermeiros envolvidos no cuidado a pacientes em contexto pandêmico.