bluuebunny/crossref_metadata_2025 huggingface dataset:
Understanding the Factors Influencing Extended Producer Responsibility in Indonesia
Authors: Widyarsana I Made Wahyu , Nurawaliah Hanifah
Published: December 2023

Extended Producer Responsibility (EPR) of Electronic Waste (e-waste) in Indonesia urgently needs comprehensive and enforceable regulations that hold the producers to have responsibility for the entire lifecycle of electronic products, ensuring proper management, and disposal. This study focuses on analyzing factors influencing the EPR of e-waste and emphasizes the critical need for such analysis in building enforceable regulations. This study utilizes the Analytic Network Process (ANP) to analyze the influencing factors. Key stakeholders, including experts, government officials, waste management authorities, producers, consumers, and academics, were involved as respondents. Data collection involved interviews and questionnaires. The study’s findings reveal that administrative instruments are considered a priority factor in the implementation of EPR for e-waste (0.368), followed closely by economic factors (0.362) and informative factors (0.271). Specifically, the collection aspect of administrative instruments emerges as the most dominant factor (0.387). In terms of economic and informative instruments, priority factors include product development subsidies (0.278) and awareness campaigns targeting producers (0.332). Furthermore, all respondents prefer to involve producer responsibility organizations in the EPR mechanism (0.343). By understanding the significant influencing factors, policymakers can focus on strengthening administrative instruments, offering economic incentives, and enhancing information dissemination. The involvement of producer responsibility organizations also emerges as a crucial aspect of effective EPR of e-waste implementation in Indonesia.
Enhancing Recommendation Systems through Heterogeneous Graph Convolution Networks with Multiple Feature Aggregation and Attention Mechanism
Authors: Donovan Samuel , Carter Daniel , Anderson Grace , Brown Silas
Published: December 2023

The intersection of heterogeneous graph neural networks has emerged as an innovative modeling paradigm for comprehensively capturing the intricate nature of diverse information networks. However, the conventional landscape of GNN-based recommendation algorithms faces inherent challenges. These algorithms are conventionally tailored to manage regular topological graphs consisting of single-type nodes, thereby limiting their adaptability in contemporary networks where data is characterized by a myriad of node types. To tackle these challenges and bridge existing gaps, this paper presents a pioneering approach by seamlessly integrating graph neural networks with heterogeneous networks, thereby introducing a sophisticated deep recommendation model. This model seeks to thoroughly exploit the intrinsic value of graph-structured data in personalized recommendations, aiming to significantly elevate the performance of recommendation systems. By fusing the capabilities of graph neural networks with heterogeneous networks, the proposed deep recommendation model strives to not only address the limitations of current methods but also to propel the capacities of personalized recommendation systems to new heights.
Sensation Seeking and Internet Addiction in Adolescents: Moderating and Mediating Mechanisms
Authors: Li Qi , cao lei , Lai Xinyu , Tao Ran , Xiao Jing , Hou Xiaowen , Zhang Yiwen , Dai Bibing , Hu Kesong
Published: December 2023

Background
Sensation seeking may lead to Internet abuse. This study aimed to investigate whether sensation-seeking behavior in adolescents is linked to Internet addiction and, if so, how this relationship is influenced by self-control and emotion-focused coping.
Methods
A total of 416 adolescents completed inventories on sensation-seeking, self-control, and emotion-focused coping.
Results
Our findings suggest that the Disinhibition and Boredom Susceptibility subcomponents of sensation-seeking behavior predicted Internet addiction, which was further mediated by emotion-focused coping. Specifically, adolescents with low levels of self-control had higher scores on emotion-focused coping and Internet addiction, supporting a moderating and mediating model.
Conclusion
Our results are consistent with the Interaction of Person-Affect-Cognition-Execution model and suggest that sensation-seeking behavior and Internet addiction are best understood in the context of self-control and emotion-focused coping. We discuss the implications of these moderating and mediating mechanisms.
Minimally Invasive Left Colectomy with Total Intracorporeal Anastomosis versus Extracorporeal Anastomosis. A single center cohort study. Stage 2b IDEAL framework for evaluating surgical innovation
Authors: Serra-Aracil Xavier , Gómez-Torres Irene , Torrecilla-Portoles Andrea , Serracant-Barrera Anna , Garcia-Nalda Albert , Pallisera-Lloveras Anna
Published: December 2023

Purpose
Performing intracorporeal anastomoses in minimally invasive colon surgery appears to provide better short-term outcomes for patients with colon cancer. The aim of the study is to compare surgical aspects and short-term outcomes between intracorporeal and extracorporeal techniques in left colectomies with both laparoscopic and robotic approaches and evaluate advantages and disadvantages of intracorporeal anastomosis according to IDEAL framework (Exploration, stage 2b).
Methods
This is a single center, ambispective cohort study comparing total intracorporeal anastomosis (TIA) and standard surgery with extracorporeal anastomosis (EA). Patients with colon cancer treated by left colectomy, sigmoidectomy and high anterior resection by total intracorporeal anastomosis between May 2020 and January 2023 without exclusion criteria were prospectively included in a standardized database. Short-term outcomes in the group undergoing TIA were compared with a historical EA cohort. The main assessment outcomes were intraoperative complications, postoperative morbidity according to the Clavien-Dindo scale and the comparison of pathological. We conducted a preliminary comparative study within the TIA group between approaches, a primary analysis between the two anastomotic techniques, and a propensity score matched analysis including only the laparoscopic approach, between both anastomotic techniques.
Results
Two hundred and forty-six patients were included: 103 who underwent TIA, thirty-five of them with laparoscopic approach and 68 with robotic approach, and a comparison group comprising another 103 eligible consecutive patients who underwent laparoscopic EA. There were no statistically significant differences between the two groups in terms of demographic variables. No statistically significant differences were observed in anastomotic dehiscence. Intraoperative complications appear to be fewer in the TIA group, with a higher inflammatory response. Relevant anastomotic bleeding and the number of retrieved lymph nodes seem to be higher in EA group. Nevertheless, no differences were observed in terms of overall morbidity.
Conclusion
Minimally invasive left colectomy with intracorporeal resection and anastomosis is technically feasible and safe suing either a laparoscopic or a robotic approach. Clinical data from this cohort demonstrate outcomes comparable to those achieved through the conventional EA procedure in relation to postoperative morbidity and oncological efficacy, with indications suggesting that the utilization of robotic-assisted techniques may play a contributing role in enhancing overall treatment outcomes.
Sub-anaesthetic doses of Esketamine ameliorate memory impairment in Alzheimer's disease by regulating the BDNF/AKT/mTOR signaling pathway in rats
Authors: Wang Chengzhi , Xu Fan , Yu Xinran , Yang Jianhui , Guo Dongyong , Gan Jianhui
Published: December 2023

Backgroud In this study, we aimed to investigate the effect and mechanism of action of Esketamine on Alzheimer's disease (AD) related memory impairment. Methods and Results We investigated the effect of Esketamine on an STZ and D-galactose(D-gal)-induced AD model in rats. After the Morris water maze tested the learning and spatial memory ability, the Western-blot method detected the contents of phosphorylated AKT (p-AKT) and phosphorylated mTOR (p-mTOR) in the hippocampus. HE staining was used to observe the pathological changes in the CA3 region of the hippocampus, the expression of BDNF was detected by immunohistochemistry, and ELISA detected the contents of Aβ42 and phosphorylated tau protein (p-tau). Taking Esketamine after treatment, 1 the Results of MWM: the escape latency of the mice was shortened, and the number of crossing the platform was increased; 2 Western blot results: the expression of p-AKT and p-mTOR was up-regulated. 3 HE results: cell number increase, more closely, deep into the nucleus is still visible; 4 Immunohistochemical results showed that the expression of BDNF increased; 5 ELISA results: decreased levels of Aβ42 and p-tau. Conclusions Sub-anesthetic dose of Esketamine can reduce the level of Aβ42 and the hyperphosphorylation of tau protein through BDNF/AKT/mTOR pathway in AD rats, thereby reducing the neuropathological damage of the hippocampus and improving the learning and spatial memory ability.
Spectroscopic techniques for the characterization of the potsherds from Tigranakert in Artsakh
Authors: Keheyan Yeghis , Lanterna Giancarlo , Petrosyan Hamlet , Vardanesova Tatjana
Published: December 2023

Archaeometry and archaeological science correspond and refer to the application of scientific techniques to the analysis of archaeological materials, as well as the processes involved in their manufacture [Williams 2005, Virgil de la Mencia 2008, Martinon-Torres 2015]1–3]. This paper presents study of a set of ceramic samples using stratigraphic analysis coupled with SEM/EDX technique. Ceramic materials provide information on the clay materials employed in their manufacture [Hradil et al 2018, Giannosa et al 2020]4,5], hence facilitating the assignment of their autochthonous or allochthonous character [6–8]. Analysis of the cross section provides to the stratigraphic evaluation of the ceramic body (holes, cavities, imperfections, granulometry, inclusions and color), the glaze or other superficial layers (enamels, transparency or opacity, color and saturation, defects and other): SEM/EDX technique allows obtain information on the samples (texture and microstructure, phases and minerals recognition by electron backscattered diffraction, all these analysis are carried out simply tacked a very small fragment from the surface, including glaze and ceramic body (less than a couple mm), embedded in polyester resin and grinded and polished without destruction of the specimen.
Twitter as a Lens for Crime Analysis: A Comprehensive 4W Model for Identifying Crime Patterns and Insights
Authors: Kuhaneswaran Banujan , S.P.C.W Sandagiri , S. Kumara B. T. G. , Li Zhenni
Published: December 2023

The increased ubiquity of social media platforms in recent years has made them a viable data source for various purposes, including crime investigation. This research introduces a unique criminal analysis framework built on the 4W model (What, Where, When, and Who) to assess crime-related actions utilising Twitter. By leveraging machine learning techniques, our approach extracts detailed information about individual crime incidents, such as type of crime, location, time, and individuals involved. This paper describes the complete methodology, including data collection, preprocessing, feature extraction, model development, and evaluation processes. We utilised the LSTM deep learning model for detecting crime-related Tweets, followed by applying the proposed 4W model. Our results demonstrate the potential of the proposed framework to provide valuable insights that can inform the development of targeted crime prevention strategies and interventions. This study contributes to the growing body of research on leveraging social media data for crime analysis, ultimately promoting safer communities.
Novel Dynamic Shaping Artificial Intelligence- Based Fault Location Determination Using Unsynchronized Measurements of Power Transmission Lines
Authors: Rizk-Allah Rizk M. , ELkalashy Nagy I. , Eldesoky Islam M. , Ayad Ahmed N.
Published: December 2023

Accurately locating faults that occur in transmission lines is a very urgent process for reliable guidance of the power grid system. This process acquires synchronized measurements of voltage and current at the instance of fault, and this is more complex in practical application. For this reason, this work produces a fault location (FL) estimation smart and high-quality approach for a 138-mile transmission line (TL) using machine learning techniques depending on unsynchronized data. The line-to-ground fault cases are considered an example of the proposed algorithm; however, it can be generalized for the applications of the other fault types. The work is divided into two main axes, the first axis is to utilize unsynchronized measurements for the candidate work by shifting voltage and current angles, while the other axis is to utilize a smart novel feed-forward artificial neural network (FFN) of changeable configuration adapted depending upon the nature of the studied problem. For a fair evaluation of the work, a comparison process with (FFN) based on the k-fold cross-validation technique and random forest (RF) methods is implemented. Whereas the proposed method has proven to be more highly efficient and accurate in predicting the location of the fault than others.
Outcome 10 years after Shigatoxin-producing E. coli (STEC)-associated Hemolytic Uremic Syndrom: importance of long-term follow up
Authors: Rosales Alejandra , Kuppelwieser Sarah , Giner Thomas , Hofer Johannes , Khursigara Magdalena Riedl , Orth-Höller Dorothea , Borena Wegene , Cortina Gerard , Jungraithmayr Therese , Würzner Reinhard
Published: December 2023

Background
Hemolytic uremic syndrome (HUS) is an important cause of acute kidney injury in children. HUS is known as an acute disease followed by complete recovery in most cases, but patients may still present kidney abnormalities after long periods of time. This study was performed to evaluate the long-term outcome of Shigatoxin-producing Escherichia coli-associated HUS (STEC-HUS) in pediatric patients, 10 years after the acute phase of disease and identify risk factors for long-term sequelae.
Methods
619 patients under 18 years of age with HUS (490 STEC-positive, 79%) were registered in Austria and Germany over a 6-year period. The data of 138 STEC-HUS-patients was available after 10 years for analysis.
Results
Sixty-six% (n = 91, 95%CI0.57-0.73) of patients fully recovered showing no sequelae after 10 years. Thirty-four% (n = 47, 95%CI0.27-0.43) presented either with decreased glomerular filtration rate (24%), proteinuria (23%), hypertension (17%) or neurological symptoms (3%). Sixty-four% (n = 30) had sequelae 1 year after STEC-HUS, the rest presented sequelae unprecedented at the 2-year (n = 2), 3-year (n = 3), 5-year (n = 3) or 10-year (n = 9) follow-up. 17 patients (36.2%) without sequelae at 1-year follow-up presented kidney symptoms after a period of apparent total recovery, half of these (n = 9) between 5 and 10 years after STEC-HUS. Patients needing extracorporeal treatments during the acute phase were at higher risk of presenting symptoms after 10 years (p < 0.05).
Conclusions
Patients with STEC-HUS should be followed up regularly and for at least up to 10 years after the acute phase of disease, because long-term sequelae can still occur at that time. Characteristics that may help predict poor long-term outcome are an initial critical illness, marked by need of kidney replacement therapy or plasma treatment.
Unravelling protein corona formation on pristine and leached microplastics
Authors: Dawson Amanda Louise , Bose Utpal , Ni Dongdong , Nelis Joost Laurus Dinant
Published: December 2023

Upon entering the environment, the surface properties of pristine plastics are rapidly altered due to interactions with exogenous biomolecules, contaminants, and even microbiota, which ultimately alter their ecological impacts. When present in biological fluids or high protein environments, micro(nano)plastics bind with proteins, which form a protein corona around the particle. Although a significant body of literature exists on protein corona formation on nanomaterials, less is known about how the physiochemical properties of microplastics may influence protein corona formation. This study utilises quantitative proteomics to quantify protein binding to pristine and leached microplastics. Pristine polyethylene (PE) beads (50 and 500µm), polyamide (PA) fibres (100µm), polyethylene terephthalate fibres (500µm), and fragments (<300µm), as well as pristine and leached textile microfibres comprised of PET, recycled PET, PA or cotton were incubated for 24 hours in bovine serum albumin solution (2mg mL-1) to form a protein corona. Protein adsorption to microplastics was dependant on particle surface area to volume ratio but only when additives were absent. For environmentally relevant textile microfibres, cotton microfibres adsorbed significantly more protein than synthetic microfibres. Fourteen-day aqueous leaching increased the surface charge of all microfibres. However, only PA fibres adsorbed significantly higher protein on the leached fibres compared to their pristine counterparts. Overall, the presence of chemical additives in microplastics strongly influenced protein corona formation, and this phenomenon should be incorporated into routine microplastic toxicity assessment.
Task effects on event-related potentials to single letters and pseudoletters
Authors: Hildebrand Andrew-John I. , Rowe Jacob , Takai Osamu , Toussi Nima , Herdman Anthony T.
Published: December 2023

Previous event-related potentials (ERP) studies examining of orthographic processing have reported N1 results that are incompatible with one another, some reporting larger N1 responses to letters and some reporting larger and broader N1 responses to pseudoletters. Conflicting results may be due to different tasks, which required different cognitive demands and thus resulted in different ERPs. Our study compared the ERPs of 20 participants across three different tasks: mixed viewing of letters and pseudoletters, blocked viewing of letters and pseudoletters, and 1-back memory tasks. We evaluated the timing, amplitude, and hemispheric dominance/laterality of the early ERP components (e.g., N1) to letter and pseudoletter stimuli. Results showed the same significant ERP differences between letters and pseudoletters across all tasks. This indicated that letter processing may be independent of the tasks employed and that the early ERPs for orthographic processing appear not to be not altered by volitional control or task demands used in this study.
How Corporate Social Responsibility and Sustainable Development Practices Affect the Economic Performance of Indian Businesses: A Critical Analysis
Authors: Kujur Oscar
Published: December 2023

This research paper explores the relationship between corporate social responsibility (CSR) and sustainable development (SD) and its impact on the economic outcomes of businesses. It investigates how the CSR activities of the top 10 contributing firms align with sustainable development and evaluates the influence of these activities on their financial performance. The study draws on existing literature and empirical studies that have examined the role of CSR in achieving sustainable development objectives. The significance of absorptive capacity in corporate sustainability, the perspectives of managers in developing countries, and the relationship between CSR and sustainability in developing countries are among the areas explored. The paper hypothesizes that there is significant impact of sustainable financing on the financial performance of companies. It employs secondary data sources to assess the effects of CSR on key financial indicators, namely profit before tax (PBT), market value (MV), and revenue. PBT measures a company's earnings from operations before tax payments, while MV reflects investors' expectations about the company's future performance. Revenue represents the income generated from regular business activities. By examining these indicators, the study aims to provide insights for organizations, decision-makers, and researchers to assess the impact of CSR practices on sustainable development outcomes across different industries.
A global co-expression network analysis facilitates identifying genes underlying agronomic traits in potatoes
Authors: Bonthala Venkata Suresh , Stich Benjamin
Published: December 2023

Potato (Solanum tuberosum L.) is the world's most crucial non-cereal food crop and ranks third in food production after wheat and rice. Despite the availability of several potato transcriptome datasets at public databases like NCBI SRA, an effort has yet to be put into developing a global transcriptome atlas and a co-expression network for potatoes. The objectives of our study were to construct a global expression atlas for potatoes using publically available transcriptome datasets, identify housekeeping and tissue-specific genes, construct a global co-expression network and identify co-expression clusters, investigate the transcriptional complexity of genes involved in various essential biological processes related to agronomic traits, and provide a web server to easily access the newly constructed expression atlas and co-expression network to investigate the expression and co-expression of genes of interest. In this study, we used data from 2299 publicly available potato transcriptome samples obtained from 15 different tissues to construct a global transcriptome atlas. We found that roughly 87% of the annotated genes exhibited detectable expression in at least one sample. Among these, we identified 281 genes with consistent and stable expression levels, indicating their role as housekeeping genes. Conversely, 308 genes exhibited marked tissue-specific expression patterns. We examplarily linked some co-expression clusters to important agronomic traits of potatoes, such as self-incompatibility, anthocyanin biosynthesis, tuberization, and defense responses against multiple pathogens. The dataset compiled here constitutes a new resource, which can be accessed at http://134.99.224.164/conekt. This transcriptome atlas and the co-expression network will accelerate potato genetics and genomics research.
Walter Boehlich, 1921–2006
Authors: Kapp Christoph
Published: December 2023

Walter Boehlich übersetzte Texte aus dem Englischen, Französischen, Spanischen, Dänischen, Schwedischen und Italienischen, die vom 17. bis zum 20. Jahrhundert verfasst wurden. Was ihn für die Geschichte des Übersetzens in der alten Bundesrepublik bedeutsam macht, sind nicht allein diese Werke, sondern die Vielzahl der Rollen, die er ausfüllte. Über die Übersetzungskritik kam er zum Übersetzen, als Mitarbeiter des Suhrkamp Verlags lektorierte er u.a. die für die "Bibliothek Suhrkamp" vorgesehenen Übersetzungen. Nach seiner politisch motivierten Kündigung setzte er sich für die Rechte von Übersetzern ein.
Carl Brinitzer, 1907–1974
Authors: Tashinskiy Aleksey , Scholten Sarah
Published: December 2023

Der aus deutsch-jüdischer Familie stammende Jurist Carl Brinitzer lebte ab 1933 im Exil, zunächst in Italien, ab 1936 in London. Dort erlernte er als Mitarbeiter der BBC u. a. das Handwerk des Übersetzens. Nach Kriegsende blieb er in England als freischaffender Journalist für deutsche Blätter, übersetzte auch mehrere Bücher, darunter zwei Biografien und vier Kriminalromane.
Elsa Brod : Übersetzungsbibliographie
Authors: Czier Uwe
Published: December 2023

Die in der vorliegenden Bibliographie in der Rubrik "Übersetzungen in Buchform" enthaltenen Einträge beruhen auf Recherchen in Bibliothekskatalogen (in erster Linie im DNB-Katalog) und wurden durch Einsichtnahme in Originalausgaben verifiziert. Autoptisch ermittelt wurden des Weiteren alle unselbständigen Titel, insbesondere durch Recherchen in digital verfügbaren historischen Zeitungen, ergänzt durch die Einsichtnahme in Papierausgaben von Zeitungen aufgrund von Hinweisen durch die Israelische Nationalbibliothek.
Manfred von Busch, 1897–1955
Authors: Passet Eveline
Published: December 2023

Manfred von Busch gehört zu einer Generation von Literaturübersetzern aus dem Russischen, die nicht aus primärer Neigung, sondern durch die in ihr Leben fahrende Geschichte zu diesem Metier kamen. Aus einer Familie Sankt Petersburger Deutscher stammend, strandete er nach dem Ersten Weltkrieg in Berlin, wo er sich eine Existenz als Journalist aufbaute und einige wenige Übersetzungen anfertigte. Sein hauptberufliches Übersetzerdasein begann nach dem Zweiten Weltkrieg in der DDR.
The endothelial-specific highly expressed long non-coding RNA LINC00607 governs the endothelial phenotype
Authors:   , Lam Frederike
Published: December 2023

Sprache Englisch The role of lncRNAs in the CVS and the endothelium is highly diverse and has been subject to a substantial amount of research over the last decade. The identification of lncRNAs as clinically relevant biomarkers and as co-regulatory molecules let to the appreciation of the functional relevance of lncRNAs. In the present study, LINC00607 was identified as an endothelial-enriched, human-specific lncRNA. With its distinct functions, LINC00607 maintains and supports the endothelial homeostasis especially in response to VEGF-A signalling. In the first part of this study, LINC00607 was functionally characterized in human endothelial cells. LINC00607 is highly and specifically expressed in endothelial cells and is differentially regulated in CVDs. Depletion of LINC00607 resulted in decreased angiogenic sprouting, reduced integration of ECs in a newly formed vascular network in vivo, enhanced endothelial migration and differential expression of many important genes for endothelial cell homeostasis. Functionally, LINC00607 maintains ERG-driven endothelial gene expression programs through BRG1. BRG1 secures stably accessible enhancer regions as well as TSS of ERG target genes, thus enabling transcription of endothelial gene programs. The second part of this study proposes an additional mode of action for LINC00607. The strongly impaired response to VEGF-A after LINC00607 KO can only be partially explained by its’ expression control of ERG target genes. It rather appears that LINC00607 is involved in the control of alternative splicing of VEGF receptor FLT1. The differential splicing of FLT1 produces the anti-angiogenic soluble isoform of FLT1. Even though further validation is needed to uncover the underlying mechanism, there is the potential of a more general role of LINC00607 in splicing control through BRG1. As AS of FLT1 is a clinical marker in preeclampsia, LINC00607 might qualify to be an additional marker for the onset and manifestation of the pregnancy disorder. Taken together, LINC00607 is a target in future for molecular therapy in CVD to restore a healthy endothelial phenotype and has the potential to serve as a biomarker in preeclampsia.
Analysis of the hydraulic interference between the baffles and the composite hydraulic structure
Authors: Qasim Rafi M. , Abdulhussein Ihsan A. , Hameed Muna A.
Published: December 2023

The purpose of the present study is to examine the influence of baffles presence at downstream system on weir gate hydraulic response. Two baffles configuration (triangle and angle shapes) are installed in bed flume. Two different spacing are used between the baffles and two different directions for baffles are also adopted. The study tries to investigate the variation in upstream Froude number, downstream Froude number, Reynolds number, actual discharge, discharge coefficient, downstream average water depth and the hydraulic system efficiency which is expressed as function of downstream water depth. It has been shown that the number of baffles has a direct and significant impact on flow hydraulic characteristics of weir-gate structure regardless of the spacing between baffles and the direction of baffles related to flow. Baffles number and spacing have essential impact on the water flow velocity of system and this impact leads to increase the flow resistance. The results clarify that the upstream Froude number, downstream Froude number, Reynolds number, actual discharge and discharge coefficient are decreased with the increase in baffles number except the average downstream water depth which increases with increase in baffles number. The efficiency of hydraulic system gives a good indicator for using baffles with weir-gate structure. At the end this paper shows a fruitful result of efficiency. This experiment run condense on the baffle’s numbers and directions with respect to the water flow direction at the downstream regime. So, the rises in the water level relies on the numbers and directions of the baffles as compare to the case without using baffles at the flume downstream region. The actual discharge and weir-gate discharge coefficient are more sensitive to the increase in the baffles’ numbers and the baffles direction with respect to the water flow direction
Application of the Taguchi method to determine optimized parameters for designing brake of hand winch
Authors: Duong Giang Truong
Published: December 2023

Brakes are used to stop movement or adjust speed to ensure safety for mechanisms or machines. In this paper, the brake applied to hand winch will be studied. This hand winch has been studied by us in previous stages. However, the disadvantage of the winch is that the drum wall attached to the friction surfaces is not reasonable in terms of layout, as well as the parameters to optimize braking moment have not been calculated. A new brake structure is proposed in this study to solve the above problem. This structure does not use the drum wall as the friction surface. It does not affect the drum wall and it is easy to replace the friction surface when necessary. Instead, the cone brake is suitable for the structure brake and the size, structure, and design load. To determine the optimal parameters of the brake structure, the article will analyze the theory, and experiment design. The objective function is the maximum braking torque. Constraints are hand winch parameters, installation, friction surface material, and loading conditions. The corresponding factors are coded according to the Taguchi method, the orthogonal planning matrix is L18. Using Minitab software to analyze the Signal/Noise ratio, the study determined the optimal values for five factors including screw thread pitch, coefficient of friction (screw thread), cone angle, friction coefficient (brake), and large cone brake radius. Research results have selected the optimal parameters of the brake, and the optimal values have satisfied the constraints. The torque at the cone brake is greater than that of the disc brake approximately 37.7 %. The pressure at the friction surface is reduced by about 55 % compared to the disc brake surface
Characteristics and performance analysis of activated carbons derived from different precursors and activators for waste water adsorption
Authors: Putra Negara Dewa Ngakan Ketut , Tirta Nindhia Tjokorda Gde , Widiyarta I Made , Karohika I Made Gatot , Suarda Made , Dwijana I Gusti Komang
Published: December 2023

Domestic waste such as methylene blue from the dyeing process and detergent from laundry activities are sources of water pollution. Before being dumped into the water, this waste must be minimized. One approach that can be utilized is the adsorption method with activated carbon. To generate activated carbon with the properties required for this purpose, an appropriate precursor and manufacturing conditions must be chosen. The objective of this research is to investigate the characteristics and performance of activated carbon derived from various precursors (Petung and Santong bamboos) and activators (Ar, N2, and CO2) for detergent and methylene blue dye adsorption. The difficulty to be solved is determining the best precursor and activator for maximum methyl blue and detergent adsorption. Characterizations included FTIR, XRD, SEM, TGA, and adsorption isotherm testing. The study's findings show that activated carbons have functional groups O-H (hydroxyl), C-H (aldehydes and alkenes), C=C aromatic rings, C-H aromatic groups, and an amorphous structure. The presence of a porous and amorphous structure, as well as the C=C aromatic ring, makes activated carbons capable of absorbing methyl blue and detergent. Santong bamboo-activated carbon activated with argon has the best characteristics and adsorption capability. This activated carbon has a fixed carbon content of 76.34 %, pore volumes of 0.362 cc/g, average pore widths of 1.967 nm, pore surface area of 291.487 m2/g, bimodal pore size distribution, and methylene blue and detergent adsorption capabilities of 19.733 cc/g and 1.689 cc/g, respectively. The results obtained are on a laboratory scale, which necessitates additional research, particularly on how to create reservoirs and regenerate activated carbon simply and affordably
Prediction on the wear rate of epoxy composites reinforced micro-filler of the natural material residue using Taguchi – neural network
Authors: Abed Salwa A. , Hassan Samah R. , Jomah Abdul Jabbar Saad , Hanon Muammel M.
Published: December 2023

The abrasive wear rate of epoxy composites reinforced with fillers sourced from recycled natural waste consisting of pollen of palm (PPW) and seashells (SSW) was studied.

Due to the importance of polymer composites used in the tribological couplings of machinery structures, as well as their possible use in brake pads as alternative materials for harmful components in environmentally polluted asbestos, the current research seeks to develop the tribological properties of composite materials reinforced with natural fillers and environmentally friendly. The research investigated the effect of two factors, the weight percentage of natural filler wt. % (0.5 %,1 %, and 1.5 %) and testing loads (1000 g, 2000 g, 3000 g) upon the wear resistance of epoxy composites. The importance of developing epoxy compounds is evident, especially since their work does not require lubricating conditions in various industrial fields, and therefore the development of their bonding properties will increase their operational life and achieve economic benefit for the industrial sector and the environment at the same time. The epoxy composites were subjected to abrasive wear tests under dry friction conditions using a pin-on-disc system. Signal-to-noise (S/N) analysis is adopted to study the influence of the two factors, wt. % and test loads, upon the tribological wear resistance of epoxy composites. A predictive model depending on the regression equation was developed to predict the wear resistance of epoxy composites. The results showed an improvement in the wear resistance of the composite material compared to the epoxy sample without filling by about 47 %. The optimum condition for wear resistance of epoxy composites has been achieved with a weight ratio of (1.5 %) and an applied load of 1000 g
The development of a 10.7-MHz fully balanced current-tunable bandpass filter with Caprio technique
Authors: Lertkonsarn Samran , Khwunnak Chadarat , Angkawisittpan Niwat , Sultornsanee Sivarit
Published: December 2023

Bandpass filters are integral in modern communication systems for selecting specific frequency ranges to ensure interference-free signal transmission and reception. This paper explores various bandpass filter designs, including those using active inductors, transmission-line unit-cells, microstrip open-loop resonators, and dual-port dual-frequency integration antennas. The focus is on the 10.7-MHz bandpass filter, widely used in FM radio and television systems. The study evaluates current-controlled and balanced designs, analyzing their performance, advantages, and drawbacks. Unique trade-offs in terms of linearity, distortion, temperature sensitivity, and component variations are discussed. Additionally, advancements in filter technology and diverse design options are presented. The paper introduces a novel current-balanced, frequency-adjusted bandpass filter to address odd-order noise issues. This filter aims to achieve high linearity, harmonic distortion attenuation, and the elimination of even-order harmonics. Through synthesis, analysis, simulation, and comparison with traditional filters, the proposed design enhances signal quality and efficiency. The fully-balanced current-tunable bandpass filter with the Caprio technique at 10.7 MHz is developed, exhibiting symmetrical characteristics with lower total harmonic distortion. The circuit’s structure is simple and adaptable for integration, validated through consistent simulation results. The study concludes by emphasizing the constant sensitivity of transistor differential amplifier circuits to the center frequency and the linear relationship between center frequency and adjustable bias current. The suggested transistor and capacitor selection criteria contribute to optimizing the circuit’s performance, aligning with the Caprio technique’s recommendations. Overall, this research presents a promising solution for achieving high-quality signal transmission in contemporary communication systems
Consumer behavior and tourists’ green purchase intention of Gen Z consumers: Moderating role of environmental knowledge
Authors: Surahman  , Lesmana Dadang , Naprida Dewi , Rai Wibowo Bagus , Yudaruddin Rizky
Published: December 2023

The study aims to analyze how factors such as environmental attitude, subjective norms, perceived behavioral control, and environmental knowledge impact the willingness of Generation Z tourists in Indonesia to make green or environmentally friendly purchases. It also explores the moderating role of environmental knowledge in the relationship between environmental attitude and green purchase intentions. The analysis focuses on Generation Z respondents, totaling 543 individuals. The paper employs the structural equation modeling (SEM) method. The results show that when considered individually, consumer behavior, encompassing environmental attitude, subjective norms, and perceived behavioral control, exerts a significantly positive impact on green purchase intentions. These results suggest that tourists’ attitudes toward the environment, influence from family or friends, and the ability to control their actions are pivotal in fostering green purchase intentions while traveling. Furthermore, the study demonstrates a substantial positive correlation between environmental knowledge and tourists’ green purchase intentions. Additionally, environmental knowledge moderates environmental attitude, amplifying its positive effect on tourists’ green purchase intentions. This highlights the vital role of environmental knowledge, which not only stimulates green purchase intentions but also motivates tourists to adopt pro-environmental behavior by opting for eco-friendly products.
Oferta de Prótese Dentária na Atenção Básica: Expansão e Diferenças Regionais no Brasil
Authors: Silva Junior Manoelito Ferreira , Darabansk Jaciane Aparecida Gomes , Núgoli Vinicius Zacharias , Simões Ana Clara , Cavalcante Denise de Fátima Barros , Baldani Marcia Helena
Published: December 2023

O objetivo do presente estudo foi analisar a expansão da oferta de prótese dentária pelas Equipes de Saúde Bucal (ESBs) conforme as regiões geográficas brasileiras. O estudo de série temporal foi realizado com dados secundários do Módulo II do 1º ciclo (2011-2012), Módulo VI do 2º ciclo (2013- 2014) e Módulo V e VI do 3º ciclo (2015-2018) do instrumento de Avaliação Externa do Programa de Melhoria do Acesso e Qualidade da Atenção Básica (PMAQ-AB). Houve comparação das proporções entre as regiões brasileiras pelo teste Qui-quadrado, e entre os anos pelo teste Q de Cochran, com uso do teste z ajustado pelo método Bonferroni (p<0,05). A identificação de usuários com necessidade de prótese aumentou nas ESBs no Brasil entre 2012 (50,5%) e 2014 (52,4%) (p=0,001), com aumento no Nordeste (p<0,001) e redução no Centro-Oeste (p=0,01). A entrega de prótese e seu acompanhamento reduziu no Brasil em 2014 (7,7%) em relação a 2012 (13,0%) e 2018 (13,5%) (p<0,001), com aumento em 2018 no Nordeste (p<0,001). No Brasil, a oferta de Prótese Total aumentou de 2012 (35,9%) para 2014 (42,4%), com exceção da região Centro-Oeste (p>0,05). A Prótese Parcial Removível aumentou no Brasil de 2012 (25,7%) para 2014 (30,5%) (p<0,001), e aumentou no Sul e Nordeste (p<0,05). Houve aumento de ESBs que ofertam serviços de prótese dentária na Atenção Básica, no entanto ainda existem disparidades entre as regiões geográficas.
Casos de Anemia notificados em pacientes pediátricos no norte do Brasil
Authors: Silva Anna Karollyne do Nascimento , Ribeiro Carolina Heitmann Mares Azevedo , De Sena Maria Pantoja Moreira , Da Silva Marcos Valério Santos , Vieira José Luiz Fernandes , De Sena Luann Wendel Pereira
Published: December 2023

A anemia afeta quase um quarto da população mundial e causa inúmeros danos em vários tecidos, como baixa oxigenação e sinais e sintomas, como falta de ar, falta de apetite, dor de cabeça, tontura e dificuldade de aprendizado. Não há, no entanto, dados sobre anemia em crianças na Região Norte do Brasil, o que é necessário para estabelecer parâmetros confiáveis para restabelecer a saúde desses pacientes. Nosso objetivo foi avaliar os casos de anemia notificados em crianças na Região Norte do Brasil. Trata-se de um estudo transversal retrospectivo, realizado no período de um ano. As características demográficas foram anotadas e todas as crianças foram cuidadosamente designadas para o estudo. O procedimento de coleta de sangue foi realizado de acordo com o protocolo estabelecido. Um total de 600 pacientes foram incluídos no estudo. A maioria era do sexo feminino (52,5%), parda (51,6%), com renda familiar de um a dois salários-mínimos e ensino fundamental incompleto. A anemia foi mais evidente nas idades de 9 a 12 anos (74,8%) e a proporção de crianças com hematócrito, ferro e ferritina abaixo de 35%, 50 µg/dL e 7 µg/L, respectivamente, foi maior entre as crianças com anemia. Além disso, possuíam inúmeras variáveis de classificação morfológica comparadas ao índice hematimétrico. O estudo mostrou que a anemia afeta crianças. Diante da magnitude dos riscos apresentados neste artigo, medidas preventivas para esta patologia devem ser tomadas para garantir a integridade da saúde destes pacientes, sob pena de danos irreversíveis para as gerações futuras.
A Formação dos Complexos Agroindustriais no Sudoeste de Goiás
Authors: Silva Jesiel Souza
Published: December 2023

A modernização da agricultura em Goiás favoreceu a instalação de três complexos agroindustriais (CAI) na microrregião sudoeste do Estado: de grãos, carne e sucroenergético. O CAI de grãos se estabeleceu na região atrelado à produção de soja, que se expandiu pelas grandes extensões de terras planas desta microrregião. Logo em seguida, houve a instalação do CAI da carne, centralizado na agroindustrialização, a partir da instalação do complexo agroindustrial da BRF Brasil. O complexo agroindustrial sucroenergético, terceiro CAI instalado na região, contribui para o fortalecimento do agronegócio. Este estudo busca analisar a importância da instalação dos complexos agroindustriais na microrregião do Sudoeste de Goiás e suas contribuições e impactos socioeconômicos para a região. A pesquisa pautou-se em análise de dados secundários de vários bancos de dados institucionais e amplo referencial bibliográfico. A introdução da agroindústria no Sudoeste de Goiás contribuiu para o grande crescimento regional, sobretudo contribuindo para a modernização do território. A produção canavieira segue o eixo da agricultura moderna nas terras do Estado de Goiás, instalando-se em municípios com grande expressividade produtiva de grãos. Vários impactos socioeconômicos, no entanto, são observados na região como resultado do processo de expansão do agronegócio brasileiro.
Museum-type institutions with literary themes in Russia and abroad: History of genesis and present condition
Authors:   Vladimir Dahl Russian State Literary Museum, Korneeva Anastasiia A.
Published: December 2023

The article discusses the history of the genesis and the present condition of museum-type institutions in Russia and abroad, dealing with the preservation, representation or popularization of the literary heritage. The reasons and history of the formation of the term “paramuseum” abroad in the 1980s and the term “museum-type institution” in Russia in the 2000s are considered, examples of researchers who addressed this topic are given. An attempt has been made to give a broader definition of the existing term “museum-type institution” based on a comparison of museum-type institutions with institutions closest to them — museums and to highlight their main differences. The reasons for the emergence of museum-type institutions are revealed and their classification is given. It is indicated what is meant by literary themes in the context of this article. Examples of various types of museum-type institutions with literary subjects in Europe (Netherlands, Italy, Finland, Sweden, Russia and others), Asia (Japan, Korea and others) and North America (USA) are given. Their main features are indicated — a different amount of museum functions performed, the principle of location. Examples are given of theme parks (Efteling, Pinocchio Park, Astrid Lindgren’s World, Moomin World, Canadian World, Petite France and others), cultural centers (Patrick Kavanagh Centre, John Dos Passos Cultural Center, Cultural Center. A.I. Solzhenitsyna and others) and children’s museums (such as “Tower of Snegurochka”, “Wizard Forest”, interactive museum-theater “Pushkin’s fairy tales”) with literary themes, rooms of writers and expositions dedicated to them in libraries and educational institutions, cafe-museum and restaurant-museum. Based on these examples, the author concludes that many institutions seem to be very promising and have the potential to become full-fledged museums.
The dragon motif in Far Eastern porcelain: Towards attribution problems
Authors:   St. Petersburg State University, Litvin Tatyana A.
Published: December 2023

The article is devoted to the analysis of a typical Chinese figurative motif — a dragon, in porcelain objects of the Ming and Qing dynasties and in works of Japanese ceramic art of the Meiji era. The approach to the study of decorative and applied art from the point of view of the motive has been repeatedly tested by the author when compiling typological series of antique motifs in the decorative and applied art of Russian classicism. The novelty of this article is that for the first time more than fifty Chinese and Japanese objects with dragons dating from the 14th — early 20th centuries originating from the National Museum of Chine, the Shanghai and Nanjing Museums, the Metropolitan Museum of Art, the National Museum in Tokyo, the Victoria and Albert Museum, the State Hermitage Museum, as well as from several private collections. The following features were compared: posture, body position, color scheme, the nature of the background, as well as whether the dragon image is single or paired, the painting is made underglaze or overglaze, in the form of a flat or relief image. The early stage of the 14th–16th centuries it does not allow us to find prototypes of dragon images in the past, but still the author has collected certain information about cases of reflection of the dragon theme in Chinese cultural monuments. The objects of the 18th and, especially, the 19th centuries serve as a good material to find in the art of the bygone eras of the Celestial Empire the previous artistic interpretations of dragons. In the final part of the article, an overview of dragon images in Japanese ceramic art is presented, the reasons for the migration of this motif caused by the victory of Japan, as a competitor, in the Far Eastern porcelain market are substantiated.