bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effect of Ni/Sn Ratio on Microstructure and Properties of Cu-Ni-Sn-P Alloy
Authors: Chen Xiaokang , Xiao Xiangpeng , Yuan Dawei , Chen Jinshui , Wu Yu 
Published: April 2024

Abstract

Cu-1.33Ni-1.35Sn-0.08P(Ni/Sn = 1/1), Cu-0.87Ni-1.82Sn-0.08P (Ni/Sn = 1/2) and Cu-1.78Ni-0.86Sn-0.08P (Ni/Sn = 2/1) alloys were prepared to explore the effect of different Ni/Sn ratios on the microstructure and properties of the alloys. The results showed that the alloy had the best properties when Ni/Sn = 1/2. At peak aging, its tensile strength and conductivity reached 447.3 MPa and 35.5% IACS respectively. Its tensile strength was 65.1 MPa and 88.8 MPa higher than that of the alloys with Ni/Sn = 1/1 and Ni/Sn = 2/1 respectively, and its conductivity was 1.1% IACS and 3.9% IACS higher. All three alloys had obvious dendrite segregation, but the alloy with Ni/Sn = 1/2 had finer dendrites and a more uniform distribution. In addition, the precipitates in the Cu-Ni-Sn-P alloys with Ni/Sn = 1/2 and Ni/Sn = 1/1 were all granular Ni12P5 phases, and the particles of the former are finer. The precipitates in the Cu-Ni-Sn-P alloy with Ni/Sn = 2/1 were rod-shaped. The strengthening mechanisms of the three alloys were Orowan strengthening, grain boundary strengthening, solid solution strengthening and dislocation strengthening, and Orowan strengthening was dominant. The Cu-Ni-Sn-P alloy with Ni/Sn = 1/2 had finer grains and precipitates, resulting in better tensile strength and electrical conductivity.
In situ tracker for brake squeal prediction
Authors: Thévenot Maël , Brunel Jean-François , Brunel Florent , Bigerelle Maxence , Stender Merten , Hoffmann Norbert , Dufrénoy Philippe 
Published: April 2024

Abstract

Most ground transportation vehicles rely on braking systems that involve a sliding contact between a rotating and a stationarypart. In such scenarios, the emission of high-intensity noise, commonly known as squeal, can present human health risksbased on the noise’s intensity, frequency, and occurrences. Despite the importance of squeal in the context of advancingurbanization, the parameters determining its occurrence remain uncertain due to the complexity of the involved phenomena.This study aims to identify a relevant operando indicator for predicting squeal occurrences. To this end, a pin-on-disc test rigwas developed to replicate various contact conditions found in road profiles and investigate resulting squealing. Each testinvolves thermal and mechanical instrumentation, complemented by surface observations. Thermo-mechanical phenomenaand tribological behavior of the contact are investigated to highlight the relevance of the proposed indicator by establishing linksbetween contact conditions and squealing.
Urbanization decreases richness but not the phylogenetic and functional diversity of bees
Authors: Moreno-García Pablo , Ponisio Lauren , Li Daijiang 
Published: April 2024

Abstract

Urbanization has been documented as a major factor affecting worldwide biodiversity. Such evidence, however, mostly came from studies of plants and birds, with the response of many taxa to urbanization unclear. For example, both increases and decreases in bee diversity with urbanization have been reported. Such studies mainly focused on a small number of cities, with no study attempting to assess the patterns of bee diversity with urbanization at large spatial scales. To fill this knowledge gap, we leveraged global bee occurrence data to quantify species richness, phylogenetic diversity, and functional diversity of bees across Canada and the United States. We analyzed the effects of urbanization, climate, and agriculture on bee diversity while controlling for the number of records, ecoregion, and spatial correlations. We found that bee richness decreased with urbanization. In addition, urbanization led to the loss of redundant phylogenetic lineages, increasing the phylogenetic distances among closely related species. Urbanization also increased the occurrence of species with uncommon functional traits, increasing functional diversity. Future studies should expand these analyses to more regions, including the speciose areas across Mediterranean climates, as well as Tropical regions.
A B C Dengue: a case of multifactorial shock due to major trauma and dengue infection
Authors: Hoang Bui Hai , Tang Thomas Vu , Phan Nguyen Dai Nghia , Nguyen Anh Dung , Dinh Michael Minh Quoc 
Published: April 2024

Abstract

Objective: We report on a case of severe dengue diagnosed in a patient with major trauma and illustrate some of the potential challenges and considerations in the clinical management of such cases.
Method: Case report from Hanoi, Vietnam
Results: A 49-year-old female presented following road trauma incident requiring urgent laparotomy. Her recovery in Intensive Care Unit was complicated by the development of Dengue Shock Syndrome.
Conclusions: Dengue Shock Syndrome may complicate fluid management and bleeding control in major trauma cases.
Optimization based Data Aggregation and Fault Tolerance with Energy Management for Fog Enabled Heterogeneous IoT Environment
Authors: Nalayini P. , jenifer P. Immaculate Rexi , Meena V. 
Published: April 2024

Abstract
Fog computing is one of the efficient technologies used for overcoming the issues related to handling large quantities of Heterogeneous Internet of Things (HIoT) data like distributed network and health monitoring by dispensing the applications which gets applied nearer to the network edge. In fog based network model, distributed fog server closeness to the terminal devices allows currently available data to be transmitted effectually. But the increasing size of fog enabled HIoT environments leads to the design of effective routing and path selection to accomplish minimum delay and power consumption. With this motivation, this paper presents Optimization based Data Aggregation and fault Tolerance with Energy Management (ODFTEM) technique for fog enabled HIoT. This idea is segmented into three categories; they are a quasi-oppositional chimp optimization based data aggregation for routing, fault tolerance amongst the fog nodes and a Markov-chain-based probabilistic model for energy management. Initially, data aggregation is employed to gather the data and accumulate it for removing repetitive data and conserving energy. The goal of data aggregation is to reduce quantity of data dissemination and extend lifetime. A quasi-oppositional chimp optimization based data aggregation in routing is performed to choose an optimal collection of routes and perform data aggregation and it follows two stages like relay node selection and data aggregation. Secondly, to boost the network performance the best cost path is chosen where it selects the best nearest neighbor so that the packet transmission time can get reduced. Finally to forecast the energy consumption a Markov chain based probabilistic approach is used and this method can provide a comfortable energy saving model to the fog network. A detailed experimental validation of the ODFTEM technique reported the better performance in terms of energy consumption, throughput and transmission delay of the devices in the Fog enabled HIoT environment which is compared with the baseline methods like IHCFC, DAIFC and ODIFC.
Single artifact inverse RCSA with improved cross compliance identification
Authors: Sulitka Matej , Falta Jiri , Kohut Peter 
Published: April 2024

Abstract

The Frequency Response Function (FRF) at the tool-tip is important input for machining dynamics prediction, but its measurement is a time-intensive process. The receptance coupling technique offers a faster alternative, suitable for industrial applications where there is experimentally identified receptance matrix at machine-tool holder interface containing enough degrees of freedom to allow connection with various compliant tools modelled using finite element analysis (FEA). The presented approach to the technique further develops simplification of the inverse RCSA by using a single artifact proposed by Montevecchi, presenting simpler and more general mathematical formulation of the receptance matrix identification. The study also looked into how simplifying tool models affects their accuracy and performance in FEA, aiming to find a good balance between detail and efficiency. To prove the proposed technique, thorough tests on two dynamically different machine tools were conducted with various tool geometries.
Centrality-Based Heuristics in Risk Management: A Network-agent Dynamics for Analyzing Systemic Failure
Authors: Park Chulwook 
Published: April 2024

Abstract

This study scrutinized the mechanisms for mitigating systemic risk in scale-free networks, modeling on the functions of memorized capital, social learning, and centrality-based heuristics. We deployed a network-agent dynamic to examine the distribution of vulnerabilities and explored how node centrality impacts decisions related to protective investment. Our mechanical approach encompassed advanced computational techniques and interactive simulations, enabling us to monitor the relevant state variables effectively. By focusing on the dynamics of individual protective investment, we observed that nodes with higher centrality are inclined to invest more significantly in protection. These outcomes provide crucial understandings of the risk propagation and the tactics to mitigate such risks, which underscores the significance of strategic cooperation and effective regulation in bolstering network resilience and stability.
Lifetime Employment Trajectories and Cancer: A Population-Based Cohort Study
Authors: Cullati Stéphane , Sieber Stefan , Gabriel Rainer , Studer Matthias , Chiolero Arnaud , Linden Bernadette Wilhelmina Antonia van der 
Published: April 2024

Abstract

Working life is associated with lifestyle, screening uptake, and occupational health risks that may explain differences in cancer onset. To better understand the association between working life and cancer risk, we need to account for the entire employment history. We investigated whether lifetime employment trajectories are associated with cancer risk. We used data from 6,809 women and 5,716 men, average age 70 years, from the Survey of Health, Ageing, and Retirement in Europe. Employment history from age 16 to 65 was collected retrospectively using a life calendar and trajectories were constructed using sequence analysis. Associations between employment trajectories and self-reported cancer were assessed using logistic regression. We identified eight employment trajectories for women and two for men. Among women, the risk of cancer was higher in the trajectories “Mainly full-time to home/family”, “Full-time or home/family to part-time”, “Mainly full-time”, and “Other” compared with the “Mainly home/family” trajectory. Among men, the risk of cancer was lower in the “Mainly self-employment” trajectory compared with “Mainly full-time”. We could show how employment trajectories were associated with cancer risk, underlining the potential of sequence analysis for life course epidemiology. More research is needed to understand these associations and determine if causal relationships exist.
Knowledge of meat safety, personal hygiene and antimicrobial resistance awareness among abattoir workers in the formal and informal meat sector
Authors: Mazhangara Irene Rumbidzai , Jaja Ishmael Festus , Falowo Andrew Bamidele , Oguttu James , Green Ezekiel , Muchenje Voster 
Published: April 2024

Abstract

Meat is a great source of vital nutrients and important proteins for human health. But at the same time, it serves as a conducive environment for the development of microbes and their transfer to humans. This is exacerbated if the recommended safety procedures are not strictly adhered to. The aim of this research was to assess the level of knowledge of meat safety, hygiene practices, and antimicrobial drug resistance among abattoir workers in the meat value chain. A cross-sectional study employing questionnaires was conducted to assess the basic understanding of meat safety, personal hygiene, and antimicrobial resistance among abattoir workers (n = 208) in the formal (FMS) and informal (INMS) meat sectors. The results showed that the abattoir workers in the FMS had better knowledge of meat safety concepts than those in the INMS. However, abattoir workers in both sectors showed inadequate knowledge about the causative agents of foodborne diseases (FBDs). Notably, Clostridium perfringens (64.4%, 91.7%), Escherichia coli (55.6%, 70.8%), and fasciolosis (53.1%, 100.0%) were incorrectly associated with FBDs by a significant portion of abattoir workers. On the other hand, the incorrect association between FBDs and HIV (72.5%) and asthma (65.0%) was observed. In addition, the factors influencing meat safety were widely recognised; yet, misconceptions continued to exist, such as the false belief that anger (26.9%; 72.9%) is linked to FBDs. While some participants demonstrated satisfactory knowledge of meat safety, particularly within the FMS, INMS participants displayed inadequate understanding. This underscores the need for enhancements in meat safety practices across both sectors. The study emphasizes the urgency for improvement in meat safety within the examined area, advocating for initiatives encompassing research, education, and mass media dissemination to bolster awareness and adherence to safety protocols.
Libman-Sacks Endocarditis in a Congenital Valve Defect: A Case Report
Authors: Zaher Soukaina , Nassar Kawtar , Ajerouassi Ahlam , Janani Saadia 
Published: April 2024

Abstract

Background: Libman-Sacks endocarditis (LSE) is a rare complication of systemic lupus erythematosus (SLE) characterized by non-infectious vegetations on normal heart valves. Here, we present a case of SLE with a congenital valve malformation.
Case presentation: The patient, a 20-year-old, had been undergoing treatment for SLE for one year with a good response. One year later, she presented with stage IV dyspnea and chest pain, accompanied by signs of right heart failure on clinical examination. Investigations revealed active lupus and vegetations on the mitral valve, along with agenesis of the posterior mitral leaflet and severe mitral insufficiency on echocardiography. The patient received corticosteroids, antibiotics, anticoagulants, and symptomatic treatment for heart failure. Despite initial clinical improvement, the patient's condition worsened and did not respond to resuscitation measures.
Conclusion: While LSE typically responds favorably to treatment, severe valvulopathy, as seen in our patient with congenital valve malformation, can lead to fatal outcomes.
On the possibility of using highly sensitive SFCO sensors for studies in the field of behavioral physiology
Authors: Khachunts Aleksandr , Sargsyan Armen , Tadevosyan Narine , Tumanian Anush , Gevorgyan Vardan , Gevorgyan Samvel 
Published: April 2024

Abstract

The article discusses the possibility of using different types of first class SFCO sensors for detecting and analyzing behavioral characteristics of small laboratory animals widely used in physiology, pharmacology and translational medicine. The SFCO vibration sensor and vibro-acoustic microphones were used for monitoring white rats' behaviour. For the first time, a new type of sensors, the SFCO hydrophone, was specially designed by PSI Ltd. to study Zebrafish locomotion. Here, we show the ability to track animal behavior, with the required accuracy. The high sensitivity of the SFCO sensors made it possible to record a ballistocardiogram transmitted to the research platform through the paws of the rat on fragments corresponding to the behavioral pattern “freezing.” The pioneering results demonstrating the ability to record fine details of movements using the SFCO hydrophone while observing the behavioral activity of zebrafish (Danio rerio) were also shown during the study.
Hygienic behaviors and use of dental care in patients with genetic syndromes
Authors: Piekoszewska-Ziętek Paula , Witt-Porczyk Aneta , Turska-Szybka Anna , Olczak-Kowalczyk Dorota 
Published: April 2024

Abstract

Objectives: Patients with genetic syndromes require special dental attention because they have symptoms that promote plaque accumulation, dental erosion, dental caries and gingival diseases. The aim of the study was to assess hygienic behaviors, use of dental care and frequency of professional preventive procedures among Polish children and adolescents with Prader-Willi, Down's, Angelman, Silver-Russell and Smith-Lemle-Opitz syndromes.
Materials and Methods: Parents/legal guardians of children and adolescents with genetic syndromes were included. A questionnaire survey was conducted regarding socioeconomic factors, hygienic procedures performed at home and use of dental care as well as use of preventive treatments.
Results: The percentage of patients with genetic syndromes who received dental care was statistically significantly lower compared to the control group. Oral hygiene measures were most frequently used by participants with Silver-Russel syndrome, and less commonly by patients with Prader-Willi and Down syndrome. Dental treatment under general anesthesia was provided in 26 (38.2%) of the 68 children with genetic syndromes receiving dental care.
Conclusions: Hygienic neglect and inadequate use of dental care due to limited access to certain preventive and therapeutic procedures among patients with genetic syndromes are worrying. It is necessary to educate and intensify caries prevention in this group of patients.
Clinical Relevance: The paper draws attention of the medical community to the needs of patients with genetic diseases. Patients' hygiene habits and home care are often incorrect, which contributes to oral diseases, generating treatment needs.
Siamese neural network based algorithm for user recognition by their eye blinking
Authors: Malinowski Kamil , Saeed Khalid 
Published: April 2024

Abstract

The article proposes a new method for user recognition based on their unique eyelid blinking pattern. Our research aimed to develop a method that is resistant to shoulder surfing and brute force attacks, while also not requiring complex recording devices. Most user authentication methods utilizing eyelid blinking patterns are vulnerable to pattern replication attacks. On the other hand, methods using EEG sometimes require the use of complicated equipment to record the blinking event. In our study, we utilized the publicly available mEBAL database. The temporal eyelid movement patterns extracted from the samples in the database are analyzed by a Siamese neural network. The achieved results of 98.20% accuracy and 0.11 EER unequivocally demonstrate the superiority of the proposed method over other methods using eyelid blinking for user authentication.
Identification and variation of a new restorer of fertility gene that induces cleavage in orf138 mRNA of Ogura male sterility in radish.
Authors: Yamagishi Hiroshi , Terachi Toru , Takenaka Mizuki 
Published: April 2024

Abstract

Cytoplasmic male sterility (CMS) in plants caused by the expression of abnormal mitochondrial genes results from impaired pollen production. The manifestation of CMS is suppressed by the restorer of fertility (Rf) genes in the nuclear genome. Thus, the CMS-Rf system is a suitable model for studying the direct interactions of mitochondrial and nuclear genes. At least nine haplotypes, of which Type B is ancestry, have been reported for the Ogura CMS gene, orf138, in radish (Raphanus sativus). We previously observed that Rfoencoding a pentatricopeptide-repeat (PPR) protein, ORF687, which inhibits the translation of orf138 is ineffective in one haplotype (i.e., Type H). Here, we carried out map-based cloning of another Rf gene (Rfs) that cleaves the orf138 mRNA of Type H. Rfs produces a protein consisting of 15 PPRs that binds to the mRNA, cleaving the mRNA at about 50nt downstream of the binding site. However, Rfs was ineffective for Type A because of a single nucleotide substitution in the binding site. Both Rfo and Rfs suppress orf138 expression in ancestral Type B, but they are rendered ineffective in Type H and Type A, respectively, by a single nucleotide substitution in orf138.
Network Analysis of Childhood Maltreatment and Internet Addiction in Adolescents with Major Depressive Disorder
Authors: Wang Song , Geng Feng , Gu Mengyue , Gu Jingyang , Shi Yudong , Yang Yating , Zhang Ling , Li Mengdie , Xia Lei , Liu Huanzhong 
Published: April 2024

Abstract

Background
In this study, network analysis was used to explore the relationship between childhood maltreatment (CM) and Internet Addiction (IA) in adolescents with Major Depressive Disorder (MDD).
Methods
Conducted across seven hospitals in Anhui Province, China, involving 332 adolescents, it employs the Childhood Trauma Questionnaire - Short Form (CTQ-SF) and the Internet Addiction Test (IAT) to measure CM and the symptoms of IA, respectively.
Results
Using network analysis, the CM-IA network were constructed to identify the most central symptoms and the bridge symptoms within the networks. "Depress/moody/nervous being offline", " Request an extension for longer time", "Sleep loss due to late-night logines", and " emotional abuse " were identified as the central symptoms of CM-IA network analysis. Bridge symptoms, notably "emotional abuse", "sexual abuse", and "complaints about online time", were significant in linking CM and IA.
Conclusion
These results underscore the complex relationship between childhood trauma and IA, emphasizing the role of specific symptoms in understanding and addressing internet addiction in adolescents.
The Association of Early-life exposure to the Chinese Famine and healthy lifestyle behavior for elderly hypertensive patients in China
Authors: wang saiyi , Miao Yudong , Niu Yadong , Feng Yifei , Ma Mingze , Zhao Lipei , Guo Xinghong , Shen Zhanlei , Jia Shiyu , Wu Xiaoman , Zhao Weijia , Xu Lin , Wu Jian 
Published: April 2024

Abstract

Objective: Early life exposure plays a key role in a person's life. However, little is known about whether such effects will influence healthy lifestyle behaviors(HLBs) in later life. The study aimed to investigate the impact of early-life famine exposure on HLBs in elderly hypertensive patients.
Methods: This study included 18284 elderly hypertensive patients who were surveyed from 11 July to 31 August 2023, in Jia County, Henan Province. Famine exposure subgroups were categorized by birth year: infancy and toddler (1956-1958), preschool (1953-1955), school-aged (1947-1952), adolescent (1942-1946), and adult (before 1942). The outcome was six HLBs, including no smoking, no alcohol consumption, physical activity, sleep duration, body mass index (BMI), and waist circumference (WC). Logistic regression evaluated the associations of each outcome with early-life exposure. Further analyses were stratified by gender and sensitivity analysis was verified.
Results: The average age of the study population was 73.4 years, and 57.7% were predominantly women. After adjustment for potential confounding, compared with adult exposure groups, infancy and toddler exposed showed a decreased risk of no smoking, no alcohol consumption, healthy BMI, healthy WC, and an increased OR for healthy physical activity and sleep duration (all P<0.05). Preschooler-exposure has the same results as infants and toddlers exposed (P<0.05). Only the school-aged child exposed group and the adolescent exposed group had no statistical significance between sleep duration.
Conclusions: Early-life exposure to famine was associated with HLBs, such as smoking, alcohol consumption, BMI, WC, physical activity and sleep duration in hypertensive patients. These associations are stronger among participants who have experienced infancy exposure. Our findings would provide useful knowledge for other countries suffering from famine as a result of natural disasters, helping public health workers to target interventions.