bluuebunny/crossref_metadata_2025 huggingface dataset:
Development of Smallpox Antibody Testing and Surveillance Following Smallpox Vaccination in the Republic of Korea
Authors: Shin Hwachul , Lee SangEun , Choi Myung-Min , Yi Hwajung , Chung Yoon-Seok
Published: August 2024

Background: Despite its global eradication in 1977, smallpox remains a concern owing to its potential as a biological agent, thereby prompting the ongoing development and utilization of its vaccine. Vaccination with the Vaccinia virus induces immunity against variola virus, the causative agent of smallpox; however, this immunity does not extend to viruses of different genera within the Poxviridae family. In this study, we aimed to assess the efficacy of an enzyme-linked immunosorbent assay (ELISA) method utilizing Vaccinia virus and recombinant A27L antigen for detecting antibodies against smallpox. Methods. Analysis of serum from 20 individuals pre- and post-vaccination with the CJ strain (CJ50300) revealed neutralizing antibodies, which were confirmed using the plaque reduction neutralization test (PRNT). The ELISA method, validated with a PRNT50 cut-off value of >4, exhibited a sensitivity and specificity of >95% and was particularly reactive with the inactivated virus. Furthermore, adherence to the smallpox vaccination policy revealed significant differences in Orthopoxvirus antibody levels among 300 individuals of different age groups. These findings highlight the reliability and efficacy of the ELISA method in detecting post-vaccination antibodies and contribute significantly to diagnostic methods to prepare for potential smallpox resurgence and bioterrorism threats.
ABCA3 c.838C>T (p.Arg280Cys, R280C) and c.697C>T (p.Gln233Ter, Q233X, Q233*) as Causative Variants for RDS: a Review of the Literature and Family Case Study
Authors: Ognean Maria Livia , Anciuc-Crauciuc Mădălina , Galiș Radu , Stepan Alex-Emilian , Stepan Mioara Desdemona , Bănescu Claudia , Grosu Florin , Kramer Boris W. , Cucerea Manuela
Published: August 2024

Background. Respiratory distress syndrome (RDS) is the primary cause of respiratory failure in preterm infants, but it also affects 5-7% of term infants. Dysfunctions in pulmonary surfactant metabolism, resulting from mutations of the lung surfactant genes, are rare diseases, ranging from fatal neonatal RDS to interstitial lung disease, associated with increased morbidity and mortality. This study aims to clarify the clinical significance of ABCA3 variants found in a specific family case, as existing data in the literature is inconsistent. Material and methods: A family case report was conducted; targeted panel genetic testing identified a variant of the SFTPB gene and two variants of ABCA3 genes. Comprehensive research involving a systematic review of PubMed, Google Scholar databases, and genome browsers was used to clarify the pathogenicity of the two ABCA3 variants found in the index patient. Advanced prediction tools were employed to assess the pathogenicity of the two ABCA3 variants, ensuring the validity and reliability of our findings. Results: The index case exhibited fatal neonatal RDS. Genetic testing revealed the presence of the SFTPB p.Val267Ile variant, not previously reported, a benign variant based on family genetic testing and history. Additionally, two ABCA3 gene variants were identified: c.697C>T, not yet reported, and c.838C>T. These variants were found to affect ABCA3 protein function and were likely associated with neonatal RDS. Prediction tools and data from nine other cases in the literature supported this conclusion. Conclusions: Based on in silico predictors, analysis of the presented family, and cases described in the literature, it is reasonable to consider reclassifying the two ABCA3 variants identified in the index case as pathogenic/pathogenic. Reclassification will improve genetic counseling accuracy and facilitate correct diagnosis.
Making Sure Our Dead Are Dead: A Diagnostic Test Accuracy Meta-Analysis On Using Transcranial Doppler For Brain Death
Authors: Desai Dev , Isufi Anisa , Raval Dwija , Barot Raj , Thaker Kush , Shah Abhijay
Published: August 2024

BACKGROUNDBrain death in most countries requires supplementation of clinical diagnosis with ancillary tests such as EEG, cerebral angiography, or radionuclide imaging. Transcranial Doppler sonography (TCD) is one such non-invasive, real-time, bedside test that sidesteps the logistic hurdles associated with some of the tests mentioned above. OBJECTIVETo substantiate the utility of TCD as a reliable ancillary test to diagnose brain death with more certainty and reliability.METHODOLOGYMeta-analysis was performed with the use of statistical and analytical software to obtain data and estimate Sensitivity, Specificity, positive predictive value(PPV), diagnostic odds ratio (DOR), and relative risk with 95 percent confidence intervals to examine critical clinical outcomes(CI).RESULTSInitial dataset of 31 studies of which 16 studies, with a total of 1317 patients was used considering the reliability of the data. The pooled sensitivity and specificity of TCD were 0.91 (95% CI range: 0.89-0.93) and 0.99 (95% CI range: 0.97-0.99) respectively. The summary of the ROC curve showed an area under the curve of 0.9750 and an overall diagnostic odds ratio (DOR) was 323.26 with the Younden Index being 0.9. Summary of Fagan plot analysis of all studies showed a prior probability of 63% (1.7); a Positive Likelihood Ratio of 56, a post-test probability of 99% (96); a Negative likelihood ratio of 0.09, and a post-test probability of 13% (0.2).CONCLUSIONOur study emphasizes that clinical diagnosis is sufficiently adequate to declare a patient cerebrally dead. However, for ambiguous cases, TCD is a practical and fast method showing close correspondence to angiography and is superior to other bedside tests like EEG.
Infections in Children with Acute Lymphoblastic Leukemia
Authors: Šegulja Silvije , Vranešević Klara , Đorđević Ana , Roganović Jelena
Published: August 2024

Background and Objectives: Infections are the most common and potentially life-threatening complications of the treatment of children with acute lymphoblastic leukemia (ALL). The aim of this study was to determine epidemiological, clinical and microbiological characteristics of infections in pediatric patients with ALL. Materials and Methods:  Twenty-three children (16 male and 7 female, mean age 5.9 years [range 1.3 to 12.2 years]) with ALL, treated at the Division of Hematology, Oncology and Clinical Genetics, Department of Pediatrics, Clinical Hospital Center Rijeka, Croatia, from January 1, 2015 to December 31, 2020, were included in the study Results: One hundred and four infectious episodes (IEs) were reported (average 4.5 IE per patient). IEs were more frequent in the intensive phases of antileukemic treatment. Neutropenia was present in 48 IEs (46.2%) with a duration greater than 7 days in 28 IEs (58.3%). The respiratory tract was the most common infection site (48.1%). We documented 49 bacterial (47.1%), 4 viral (3.9%), 4 fungal (3.9%) and 10 mixed isolates (9.6%), while in 37 IEs (35.6%) pathogen was not isolated. The most common causes of bacteremia were coagulase-positive staphylococci. The most frequent empirical therapy was third- and fourth-generation cephalosporins, followed by piperacillin/tazobactam. Modification of the first-line antimicrobial therapy was performed in 56.9% of IEs. Granulocyte-colony stimulating factor was administered in 53.8% of IEs, and intravenous immunoglobulins in 62.5% of IEs. One patient required admission to the intensive care unit. No infection-related mortality was reported. Conclusions: ALL patients have frequent IEs. Close monitoring, identification of risk factors, rapid empirical use of antibiotics in febrile neutropenia, and timely modification of antimicrobial therapy play a key role in reducing infection-related morbidity and mortality in children with ALL.
Hand Carriage of Yeast in Student of Medicine, Nurses and Medical Laboratory Scientist. Impact of Infection Control Measures
Authors: Silva Victor , Silva Ceidy , Silva Coral , Gacitúa Rodrigo , Salas Hernan , Alburquenque Claudio , Silva-Abello Viviana
Published: August 2024

We studied yeast hand carriage of 260 students from medicine (78), nursing (89), and medical laboratory scientist (93). We isolated yeasts in 27 students (10.4%), with no differences between careers or gender. A significant lower prevalence of carriage was shown in the clinical cycle (2.7%) compared to the basic cycle (13.5%) (p=0.022) and the preclinical cycle (13.5%) (p=0.014).Increased handwashing frequency and alcohol gel use decreased yeast carriage. Students who applied moisturizing hand cream two or more times a day had a lower frequency of yeast carriage (3.4%) compared to those who did not use it or used it only once a day (16.5%), showing a significant difference (p=0.016). The most prevalent species was C. parapsilosis sensu stricto (81.5%), followed by Meyerozyma guilliermondii (C. guillermondii) (7.4%), Trichosporon mucoides (7.4%), and R. mucilagenosa (3.7%). And one case showed mixed carriage of C. parapsilosis and C. albicans. All strains were sensitive to voriconazole, caspofungin, and anidulafungin. This study shows the yeast carriage on the hands of health students, especially of C. parapsilosis, and its reduction with the frequent use of infection control measures and moisturizing hand cream.
Effects of Bioactive Compounds in the Foods for Prevention of Metabolic syndrome
Authors: Huang Lu , Singh Ram B , Smail MA Manal , Fatima Ghizal
Published: August 2024

It seems that natural compounds with bioactivity are the food constituents, present in the diets, that may provide protective effects on health due to their biochemical effects. The main benefits appear to be decline in oxidative stress and inflammation that are crucial in the pathogenesis of obesity, diabetes and metabolic syndrome. Apart from anti-inflammatory activity, these molecules also possess antifungal, and anti-infective preventative effects. Further evidence indicate that these bioactive molecules are the constituents, which are known to increase function of the foods. This review aims to emphasize that plant based diet is rich in phytochemicals such as antioxidants, vitamins, minerals, polyphenolics and flavonoids, amino acids and fatty acids, that are able to cause benefits via these compounds. These bioactive molecules can target mechanisms of oxidative stress and inflammation that are crucial in the management of metabolic syndrome. These antioxidant compounds appear to be essential component of plant based diets and are crucial for healthiness. Most investigators have proposed that bioactive compounds act as nutraceuticals which are able to regulate certain patho-physiological mechanisms responsible for metabolic diseases. The bioactive compoundspresent in the plant based diets are primary and secondary metabolites of nutritive and non-nutritive natural components generating health benefits by preventing or managing chronic disease or its symptoms. The bioactive compounds are known for their beneficial effects to health. Despite their small quantity in the diets, these bioactive compounds may trigger certain mechanisms that may cause alteration with improvement in health. It seems that most of the bioactive compounds co-existing in the plant-based diets, may be extremely healthful. However, if they are taken in excess, they can cause toxic effects. There is an urgent need to evaluate each bioactive compound to establish a beneficial quantity and a threshold of toxicity, while treating metabolic syndrome.
Mycologists and Virologists Align: Proposing Botrytis cinerea for Global Mycovirus Study
Authors: Khalifa Mahmoud E. , Ayllón María A , Rodriguez-Coy Lorena , Plummer Kim M , Gendall Anthony R , Chooi Kar Mun , van Kan Jan A.L. , MacDiarmid Robin M
Published: August 2024

Mycoviruses are highly genetically diverse, can significantly change their fungal host’s phenotype, yet, they are generally under-described in genotypic and biological studies. We propose Botrytis cinerea as a model mycovirus system in which to develop a deeper understanding of mycovirus epidemiology including diversity, impact, and the associated cellular biology of the host and virus interaction. Over 100 mycoviruses have been described in this fungal host. B. cinerea is an ideal model fungus for mycovirology as it has highly tractable characteristics – it is easy to culture, has a worldwide distribution, infects a wide range of host plants, can be transformed and gene-edited, and has an existing depth of biological resources including annotated genomes, transcriptomes, and isolates with gene knockouts. Focus on a model system for mycoviruses will enable the research community to address deep research questions that cannot be answered in a non-systematic manner. Since B. cinerea is a major plant pathogen, new insights may have immediate utility as well as creating new knowledge that complements and extends the knowledge of mycovirus interactions in other fungi, alone or with their respective plant hosts. In this review we set out some of the critical steps required to develop B. cinerea as a model mycovirus system and how this may be used in the future.
Application of Metal Halide Perovskite in Internet of Things
Authors: Chai Zhihao , Lin Hui , Bai Hang , Huang Yixiang , Guan Zhen , Liu Fangze , Wei Jing
Published: August 2024

The Internet of Things (IoT) technology connects the real world and the network world by integrating sensors and internet technology, which has greatly changed people's lifestyles, showing its broad application prospects. However, traditional materials for the sensors and power components used in IoT limit its development to high-precision detection, long-term endurance, and multi-scenario applications. Metal halide perovskite, with the unique advantages such as excellent photoelectric properties, adjustable bandgap, flexibility, and mild process, exhibiting enormous potential to meet the requirements for IoT development. This paper provides a comprehensive review of metal halide perovskites' application in sensors and energy supply modules within IoT systems. Advances on perovskite-based sensors were discussed as to gas, humidity, photoelectric, and optical sensors. The application of indoor photovoltaics based on perovskite in IoT systems were also discussed. At last, the application prospects and challenges of perovskite-based devices in IoT are summarized.
A New IL-6 Inducing Mechanism in Cancer with new Therapeutic Possibilities
Authors: Håkansson Leif , Duner Pontus , Broströmer Erik , Gustavsson Bengt , Wettergren Yvonne , Ghafouri Bijar , Håkansson Annika , Clinchy Birgitta
Published: August 2024

Background: Interleukin-6 is dysregulated in multiple pathological conditions, e.g. cancer and inflammatory diseases. Aim: To investigate new mechanisms for regulation of pathological IL-6 production. Methods: PBMC produce interleukin-6 (IL-6) stimulated by cancer serum factors or specific peptides. Immunoregulatory albumin neo-structures and peptides were identified with 2D-gel electrophoresis and MALDI-TOF-MS analyses. Il-6 and albumin neo-structures were determined by ELISA. Results: Conformational changes of normal serum albumin by proteolytic degradation generates an IL-6 inducing neo-structure, IL-6 inducing factor (IL-6IF), which is immunogenic eliciting production of autoantibodies. IL-6 production induced by IL-6IF and cancer patient sera is inhibited by specific antibodies. The serum concentration of IL-6IF, is significantly higher in advanced cancer stages and its presence is significantly correlated to the survival of the patients. Conclusion: A new mechanism for induction IL-6 synthesis is presented. Based on this mechanism the pathological IL-6 production related to an enhanced proteolytic activity can be diagnosed and selectively inhibited by specific antibodies. Such antibodies have been identified and purified. Thus, the neo-structure, inducing pathological IL-6 production, associated with a reduced survival of cancer patients can be selectively removed by therapeutic administration of antibodies leaving the function of IL-6 needed for the normal activity of the immune system intact.
Theoretical Notions with Practical Applications regarding the Statistical Calculation of the Dental Burs Wear
Authors: Ilie Filip
Published: August 2024

The paper presents theoretical notions with practical applications for establishing of one dental bur lifetime (durability and reliability based on the active part wear considering a series of statistical indicators. For the justification application of theoretical notions in practice, a conical-cylindrical dental bur was studied experimentally, to obtain a series of data in the work process, necessary for statistical calculation. The parameter taken into consideration in this paper is mass lost through the dental bur active part wear, tested. This is useful for the dental bur lifetime establishment and its extension or even optimization in operation. The loss of mass of the dental bur active part is analyzed in the work process by the results and experimental data obtained and validated by a numerical calculation statistical-mathematical. The numerical calculation approximates very well the mass lost through the wear at different rotation speeds and operation times, with those experimentally determined ones, based on which it was established lifetime. The results showed that the dental bur works with high yield in the first 20 hours of work, , after which it should be replaced with a new one.
Application of Machine Learning Techniques to Classify Twitter Sentiments Using Vectorization Techniques
Authors: Padhy Manjog , Modibbo Umar Muhammad , Rautray Rasmita , Tripathy Subhranshu Sekhar , Bebortta Sujit
Published: August 2024

The advancements in social networking have empowered open expression on micro blogging platforms like Twitter. Traditional Twitter Sentiment Analysis (TSA) faced challenges due to rule-based or dictionary algorithms, dealing with feature selection, ambiguity, sparse data, and language variations. This study proposed a classification framework for Twitter sentiment data using word count vectorization and machine learning techniques to reduce the difficulties addressed on annotated sentiment-labelled tweets. Various classifiers (Naive Bayes, Decision Tree, K Nearest Neighbours, Logistic Regression, and Random Forest) were evaluated based on Accuracy, Precision, Recall, F1-score, and Specificity. Random Forest outperformed others with an Area under Curve (AUC) value of 0.96, and an Average Precision (AP) score of 0.96 in sentiment classification, especially effective with minimal Twitter-specific features.
Translational Regulation of Duplicated Gene Expression Evolution in Allopolyploid Cotton
Authors: Fu Guiling , Luo Haotian , Jia Juqing , Hou Mingming , Hu Guanjing
Published: August 2024

Polyploidy, a prevalent event in plant evolution, drives phenotypic diversification and speciation. While transcriptional changes and regulation in polyploids have been extensively studied, the translational level impact remains largely unexplored. To address this gap, we conducted a com-parative transcriptomic and translatomic analysis of cotton leaves from allopolyploid species G. hirsutum (AD1) and G. barbadense (AD2) relative to their model A-genome and D-genome diploid progenitors. Our data revealed that while allopolyploidization significantly affects the transcrip-tional landscape, its impact on translation was relatively modest, evidenced by a narrower ex-pression range and fewer expression changes in ribosome-protected fragments than in mRNA levels. Allopolyploid-specific changes commonly identified in both AD1 and AD2 were observed in 7,393 genes at either transcriptional or translational levels. Interestingly, the majority of translational changes exhibited concordant down-regulation in both ribosome-protected fragments and mRNA, particularly associated with terpenoid synthesis and metabolism. Regarding translational efficiency (TE), at least one-fifth of cotton genes exhibit translational level regulation, with a general trend of more down-regulation than up-regulation of TE. The magnitude of translational regulation was slightly reduced in allopolyploids compared to diploids, and allopolyploidy tends to have a more profound impact on genes and functional associations with ultra-low TE. Moreover, we demonstrated a reduced extent of homeolog expression biases during translation compared to transcription. In conclusion, our study provides insights into the regulatory consequences of allopolyploidy post-transcription, contributing to a comprehensive understanding of regulatory mechanisms of duplicated gene expression evolution.
CFD-Based Performance Analysis of Hybrid MWCNTs–SiO2 Nanofluids in Plate Heat Exchangers: Enhancing Heat Transfer with Minimal Pressure Drop
Authors: Zeinali Heris Saeed , Zolfagharian Nima , Mousavi Seyed Borhan , Hosseini Nami Shamin
Published: August 2024

Heat exchangers play a vital role in numerous sectors like power generation and automotive manufacturing. Enhancing the energy efficiency of these exchangers stands as a significant hurdle. Utilizing nanofluids emerges as an optimal solution to augment heat transfer rates, leveraging their superior thermal conductivity while addressing economic constraints linked with traditional heat exchanger technologies. The motivation for this study is to consider the comprehensive synergistic features of MWCNTs, SiO2, and hybrid MWCNTs–SiO2 EG-based nanofluids in plate heat exchangers. This was achieved by simulating a plate heat exchanger using CFD (Fluent and Gambit softwares) considering the comparison of two SiO2, MWCNTs, and their hybrid forms at different mass concentrations. The Reynolds-Averaged Navier-Stokes (RANS) method was employed to model turbulent flows, and the nanoparticles were compared in both single-phase and two-phase states, with their properties derived from experimental studies. Moreover, Nusselt number, convective heat transfer coefficient, and pressure drop variations were computed at different Reynolds numbers. The findings indicated an increase in the Nusselt number with the incorporation of the hybrid nanofluid, achieving a maximum enhancement of 11.19% in comparison to EG at a Reynolds number of 240 and a concentration of 0.86 wt.%. Noticeably, the pressure drop remained negligible at lower Reynolds numbers, exhibiting marginal variations up to 0.3% at higher Reynolds numbers. At a concentration of 0.86 wt.% and a Reynolds number of 480, the introduction of MWCNTs, hybrid, and SiO2 nano-additives resulted in respective increases in the heat transfer coefficient by 21.02%, 10.76%, and 2.16% and corresponding alterations in pressure drop of 0.11%, 0.04%, and 0.02%.
Machine Learning-Driven Design of High-Elastocaloric NiTi-Based Shape Memory Alloys
Authors: Gao Yingyu , Hu Yunfeng , Zhao Xinpeng , Liu Yang , Huang Haiyou , Su Yanjing
Published: August 2024

In recent years, due to the detrimental impact of traditional gas-liquid refrigerants on the environment, the pursuit of solid-state refrigeration technology based on elastocaloric effect, as a promising sustainable alternative, has been promoted. However, the traditional trial-and-error method is inefficient and difficult to meet the material application requirements. In this work, machine learning (ML) was employed to accelerate the development of NiTi-based shape memory alloy (SMA) with excellent elastocaloric effect. By means of active learning, we identified 9 novel NiTi-based SMAs in four iterations, the phase transformation-induced entropy change (ΔS) of which are as high as over 90 J/kg·K-1. Moreover, the model exhibits good interpretability, allowing us to understand the relevance between the target and features from the aspect of mechanism.
On the Natural Numbers that cannot be Expressed as a Sum of Two Primes
Authors: Szabó Peter
Published: August 2024

In this paper, a structural property of prime numbers will be introduced and analyzed. Our analysis is based on the application of the sequence of even integers 2,10,16,22,26,28… which is defined as follows:
F(0) = 2, for i > 0, F(i) = F(i − 1)+ l, where l is the smallest even integer that is valid for:
F(i − 1)+ 2k − 1 ∈ P, for k = 1, 2, . . . l/2-1,
F(i − 1)+ 2k − 1 ∉ P, for k = 2l
and P is the set of prime numbers.
The sequence F answers the question, which are the natural numbers that cannot be expressed as a
sum of two primes. We prove that numbers expressed as j = F(i)+ 1 cannot be written as the sum of
two primes, for i = 1, 2, ··· .
High-Resolution Early Warning Systems Using DL: Part I - Elevation-Integrated Temperature and Precipitation SRGAN Downscaling (E-TEPS)
Authors: Shafei Afshin , Cioffi Francesco
Published: August 2024

This study introduces an advanced method for climate downscaling using a Super-Resolution Generative Adversarial Network (SRGAN), referred to as Elevation-integrated TEmperature and Precipitation SRGAN downscaling (E-TEPS), to enhance the spatial resolution of climate data, specifically 2m-temperature above the surface and total precipitation, from the high-resolution Euro-Mediterranean Center on Climate Change (CMCC) dataset over Italy. Traditional Numerical weather prediction (NWP) as well as global climate models (GCMs) generally lack the resolution required for local applications, and this research addresses that gap by refining GCM outputs to provide detailed local climate insights. E-TEPS incorporates elevation maps as auxiliary inputs, significantly improving the accuracy of downscaled temperature and precipitation data. Utilizing Google Cloud's computational resources, the model processes large climate datasets and runs complex training operations efficiently. The system is exceptionally fast, delivering all results in under 10 seconds. The model demonstrates superior performance over two interpolation methods (bicubic and linear), used as traditional downscaling methods, achieving lower Mean Absolute Error (MAE) and Root Mean Squared Error (RMSE), higher Pearson Correlation for temperature, and higher agreement values for the precipitation. Visual comparisons confirm that E-TEPS generated high-resolution outputs exhibit fewer artifacts and better detail preservation, particularly in regions with complex terrain and variable climatic conditions. These findings underscore the potential of our model in delivering precise, high-resolution climate predictions, thereby enhancing the performance of early-warning systems and supporting more effective climate-related decision-making. This paper is the first part of a two-part series; the second part will demonstrate the integration of this downscaling method with the FourCastNet global forecasting model to enhance climate predictions at a regional level, particularly focusing on high-resolution forecasts for Italy.
Changes in Skeletal Muscle Atrophy over Time in a Rat Model of Adenine-Induced Chronic Kidney Disease
Authors: Okamoto Kento , Kasukawa Yuji , Nozaka Koji , Tsuchie Hiroyuki , Kudo Daisuke , Kinoshita Hayato , Ono Yuichi , Igarashi Shun , Kasama Fumihito , Harata Shuntaro , Oya Keita , Kawaragi Takashi , Tominaga Kenta , Watanabe Manabu , Miyakoshi Naohisa
Published: August 2024

This study evaluated changes over time in skeletal muscle atrophy, expressions of skeletal muscle anabolic and catabolic genes, and mitochondrial activity by skeletal muscle type in an adenine-induced chronic kidney disease (CKD) model. A CKD model was successfully established by feeding male Wistar rats a 0.75% adenine diet for 4 weeks starting at 8 weeks of age. Control and CKD groups were sacrificed at 12 and 20 weeks of age. Back muscles were analyzed histologically, and succinate dehydrogenase (SDH) staining was performed to evaluate mitochondrial activity. Gene expressions of myogenic determination gene number 1 and myogenin as indicators of muscle anabolism, atrogin-1 and muscle RING-finger protein-1 (MuRF1) as indicators of muscle catabolism, and peroxisome proliferator-activated receptor-γ coactivator-1-α as a marker of mitochondrial biogenesis were assessed. Type I and type II muscle cross-sectional areas (CSAs) were decreased at 12 weeks, but type I muscle CSA recovered at 20 weeks. SDH staining was lower in CKD than control rats at 12 weeks, but no significant difference was observed at 20 weeks. Increased expressions of myogenin, atrogin-1, and MuRF-1 were observed only at 12 weeks, but no differences were observed at 20 weeks. The adenine-induced CKD rat model appears to show changes in muscle atrophy over time.
Assessment of Customers’ Evaluations of Service Quality in Live-streaming Commerce: Conceptualizing and Testing a Multidimensional and Hierarchical Model
Authors: Ho Chaang‐Iuan , Liu Yaoyu , Chen Ming‐Chih
Published: August 2024

Live-streaming commerce (LSC) is a new shopping method that combines the characteristics of social commerce and e-commerce. Since the global coronavirus disease 2019 (COVID-19) outbreak, the number of branded platforms is growing rapidly, and their competition is fiercer than ever. Understanding consumer needs and improving service quality become the key issue for survival. This study aims to develop and empirically validate a multi-dimensional hierarchical model for measuring service quality on LSC platforms. A hierarchical reflective construct was proposed to capture dimensions based on literature on e-retail and social commerce service quality. The pro-posed model was rigorously tested using two waves of survey data through the partial least squares method. Results showed that the service quality of LSC is a third-order, reflective con-struct and includes five primary dimensions (the streamer’s interaction quality, physical envi-ronment, website quality, outcome quality and ordering process) and twelve sub-dimensions (trustworthiness, expertise, responsiveness, telepresence, consumption scenarios, information quality, system operation quality, fulfillment and refund/compensation, privacy/security, contact and ease of use). Findings also supported the hypothesis that service quality has a significant impact on customers’ satisfaction and their behavioral intentions. Furthermore, we tested an al-ternative model, and the results showed that the relationship between dimensions and overall assessment is reflective rather than formative. We offered directions for further research on LSC service quality and discussed managerial implications stemming from the empirical findings.
Development of 6DOF Hardware-In-the-Loop Ground Testbed for Autonomous Robotic Space Debris Removal
Authors: Ali Ahmad Al , Beigomi Bahador , Zhu Zheng H.
Published: August 2024

This paper presents the development of a hardware-in-the-loop ground testbed featuring active gravity compensation via software-in-the-loop integration, specially designed to support research in autonomous robotic removal of space debris. The testbed is designed to replicate six degrees of freedom (6DOF) motion maneuvering to accurately simulate the dynamic behaviors of free-floating robotic manipulators and free-tumbling space debris under microgravity conditions. The testbed incorporates two industrial 6DOF robotic manipulators, a 3-finger robotic gripper, and a suite of sensors, including cameras, force/torque sensors, and tactile tensors. Such a setup provides a robust platform for testing and validating technologies related to autonomous tracking, capture, and post-capture stabilization within the context of active space debris removal missions. Preliminary experimental results have demonstrated advancements in motion control, computer vision, and sensor fusion. This facility is positioned to become an essential resource for the development and validation of robotic manipulators in space, offering substantial improvements in the effectiveness and reliability of autonomous capture operations in space missions.
Antimicrobial Resistance in Diverse Escherichia coli Pathotypes from Nigeria
Authors: Anueyiagu Kenneth Nnamdi , Agu Chibuzor Gerald , Umar Uzal , Lopes Bruno Silvester
Published: August 2024

Escherichia coli is a gram-negative commensal bacterium living in human and animal intestines. Its pathogenic strains are cause of high morbidity which can adversely affect people by causing urinary tract infections, food poisoning, septic shock, or meningitis. Humans can contract E. coli by eating contaminated food—such as raw or undercooked raw milk, meat products, and fresh produce sold in open markets—as well as by coming into contact with contaminated settings like wastewater, municipal water, soil, and faeces. Some pathogenic strains of E. coli have been identified in Nigeria such as enterohemorrhagic (EHEC), as well as enterotoxigenic (ETEC), enteropathogenic (EPEC), enteroinvasive (EIEC), enteroaggregative (EAEC), and verotoxigenic (VTEC). This causes acute watery or bloody diarrhoea, stomach cramps, and vomiting. Apart from the virulence profile of E. coli, antibiotic resistance mechanisms such as the presence of blaCTX-M found in humans, animals and environmental isolates which are of great importance and require surveillance and monitoring for emerging threats in resource-limited countries. This review is aimed at understanding the underlying mechanisms of evolution and antibiotic resistance in E. coli in Nigeria and highlighting the use of improving One Health approaches to combat the problem of emerging infectious diseases.
Silicon-, Silica- and, Silicate-Toothpastes for Remineralization and Repair of Teeth: A Scoping Review
Authors: SAMPAIO FABIO CORREIA , Oliveira Andressa Feitosa Bezerra de , Fernandes Nayanna Lana Soares , Gentile Ana Carolina Cheron , Marinho Giovanna Bueno , Strazzeri Bönecker Marcelo José , Paschoal Marco Aurelio Benini , D’Alpino Paulo Henrique Perlatti , Vilhena Fabiano Vieira
Published: August 2024

The purpose of this scoping review was to identify gaps in the literature and summarize findings from studies examining the use of silicon-, silica-, and silicate-based toothpastes for the remineralization and repair of mineralized tooth tissues. A 10-year literature search was conducted using PubMed and Scopus, adhering to PRISMA 2020 guidelines. A total of 331 studies were initially identified, with 56 full-text review articles. After selecting the manuscripts, 27 studies were qualitatively analyzed by four reviewers, focusing on the results of both in vivo and in vitro methods. The findings suggest that toothpastes containing silicon, silica, and silicate demonstrate promising results for remineralization and enamel repair, with evidence of mineral layer formation and/or deep enamel surface remineralization under various conditions. Additionally, the use of these toothpastes can lead to the obliteration of dentinal tubules within a few days. The results collectively support the efficacy of these toothpastes in enamel repair. Most of the clinical studies focused on dentine hypersensitivity, followed by white spot lesions. In conclusion, silicon-, silica-, and silicate-based toothpastes (bioactive-Si-toothpastes) can be considered effective based mostly on laboratory studies. There remains a need for more in vivo research studies on enamel and dentin mineral repair. Existing studies provide strong evidence that these technologies can reduce dentin hypersensitivity and promote enamel-dentin repair.
Trans-Sphenoidal Endoscopic Approach in Pituitary Adenomas: Clinical and Laboratory Outcome Analysis of a Single Center
Authors: Aiudi Denis , Iacoangeli Alessio , Mattioli Andrea , Liverotti Valentina , di Somma Lucia , Gladi Maurizio , Iacoangeli Maurizio , Dobran Mauro
Published: August 2024

Introduction. Pituitary adenomas constitute the second most frequent neoplasm of the central nervous system and despite the often-indolent behavior of these tumors, patients affected by pituitary adenomas show higher morbidity and mortality rates. Surgery offers good results in terms of symptoms and disease control: the aim of this study was to evaluate how the neurosurgical treatment for the removal of a pituitary adenoma through a trans-sphenoidal approach can modify the patient's hormonal panel and its influence on the overall clinical outcome. Materials and methods. Between January 2018 and September 2021, 69 patients who underwent surgery for pituitary adenoma operated via the trans-sphenoidal approach were enrolled in the study. Clinical and laboratory data included pre- and post-operative hormonal status, assessed before surgery and within the following 48 hours. Results. Remission of endocrinological values outside physiological ranges and resolution of symptoms were considered as favorable outcome. Surgical treatment was statistically significant as factor to normalize the following hormones: ACTH (p = 0.014), TSH (p < 0.0001), fT3 (p < 0.0001), fT4 (p < 0.0001), FSH (p < 0.0001), LH (p = 0.001), testosterone (p = 0.001), prolactin (p < 0.0001), confirming previous literature findings. Furthermore, the association between surgery and resolution of pre-operative visual disturbances was statistically significant (p < 0.0001). Overall, 59% of patients experienced complete or partial remission of the pre-operative endocrinological abnormalities and in 76% their initial symptoms improved. Conclusions. This study confirms, in our experience, the excellent risk-benefit ratio supporting the use of trans-sphenoidal endoscopic surgery as an effective therapeutic approach for the removal of pituitary adenomas with improvement in the post-operative hormonal and clinical status.
Evaluation of Physical and Mental Health in Adults Who Underwent Limb-Lengthening Procedures with Circular External Fixators during Childhood or Adolescence
Authors: Depaoli Alessandro , Magnani Marina , Casamenti Agnese , Ramella Marco , Menozzi Grazia Chiara , Gallone Giovanni , Viotto Marianna , Rocca Gino , Trisolino Giovanni
Published: August 2024

Background: Lower limb length discrepancy (LLD) in children and adolescents, often due to congenital or acquired conditions, is treated to achieve limb equality and alignment, optimizing function and minimizing cosmetic concerns for an active adulthood. This study evaluated the Health-Related Quality of Life (HRQoL) and physical functioning of adults who underwent unilateral limb lengthening with circular external fixators (EFs) in childhood. Methods: Fifty patients treated at a median age of 14.9 years completed the Short Form 36 (SF-36) and Stanmore Limb Reconstruction Score (SLRS) questionnaires in adulthood, with a median follow-up of 8.9 years. Results: Among the 50 patients, 38 underwent a single limb lengthening (21 tibia, 12 femur, 5 both), while 12 required multiple cycles. The median residual LLD was 0.4 cm, with 12 patients (24%) having over 2 cm. Complications occurred in 67% of procedures, mainly due to prolonged healing. Physical and mental health scores were significantly lower than normative data. The mean Physical Component Summary was 52.2 ± 7.2 (p = 0.20). The mean Mental Component Summary was 43.9 ± 8.6 (p = 0.001), notably lower in congenital LLD cases. Many SLRS items (Pain, Social, Physical Function, Work, and Emotions) strongly correlated with SF-36 items. Conclusions: The study highlights the challenges in treating LLD, emphasizing the significant mental health impact, especially in congenital cases, and the necessity for comprehensive long-term care strategies. These findings suggest that future therapeutic strategies should focus on both physical and psychological outcomes to improve overall recovery in LLD treatment.
Evaluation of Vaccine Strategies Among Healthcare Workers During COVID-19 Omicron Outbreak in Taiwan
Authors: Lin Min-Ru , Huang Chung-Guei , Chiu Cheng-Hsun , Chen Chih-Jung
Published: August 2024

Background/Objectives: The study aimed to assess the reactogenicity and immunogenicity of various SARS-CoV-2 vaccines and compare their protective effects against COVID-19 among healthcare workers (HCWs) during the Omicron outbreak in Taiwan.Methods: Conducted from March 2021 to July 2023, this prospective observational study included healthy HCWs without prior COVID-19 immunization. Participants chose between adenovirus-vectored (AstraZeneca), mRNA (Moderna, BioNTech-Pfizer), and protein-based (Medigen, Novavax) vaccines. Blood samples were taken at multiple points to measure neutralizing antibody (nAb) titers, and adverse events (AEs) were recorded via questionnaires. Results: Of 710 HCWs, 668 (94.1%) completed three doses, and 290 (40.8%) received a fourth dose during the Omicron outbreak. AEs were more common with AstraZeneca and Moderna vaccines, while Medigen caused fewer AEs. Initial nAb titers were highest with Moderna but waned over time regardless of the vaccine. Booster doses significantly increased nAb titers, with the highest levels observed in Moderna BA1 recipients. The fourth dose significantly reduced COVID-19 incidence, with Moderna BA1 being the most effective.Conclusions: Regular booster doses, especially with mRNA and adjuvant-protein vaccines, effectively enhance nAb levels and reduce infection rates, providing critical protection for frontline HCWs during variant outbreaks.
Efficiency Improvement on Indium Tin Oxide Films for Dye-sensitized Solar Cell using Oxygen Plasma by Bias-magnetron RF Sputtering Process
Authors: Poonthong Wittawat , Mungkung Narong , Tanitteerapan Tanes , Maneepen Threerapong , Songruk Apidat , Tunlasakun Khanchai , Siricharoenpanich Anumut , Arunrungrusmi Somchai , Kasayapanand Nat
Published: August 2024

DSSC devices are among the most widely studied thin-film solar cells because of their cost-effectiveness, low toxicity, and simple fabrication method. However, there is still much scope for replacing current DSSC materials due to their high cost, low volume, and lack of long-term stability. Accordingly, ITO-nanorod films were fabricated by E-beam evaporation using the glancing angle deposition method in this study. Then, the ITO-nanorod was treated by oxygen plasma via a bias-magnetron RF sputtering process to improve the efficiency of DSSC under a varying gas flow rate of 20, 40, 60, 80, and 100 sccm. The FE-SEM investigation of the ITO film structure revealed that the obtained nanorod structures have slightly different diameters. At the same time, an increase in the oxygen flow rate resulted in a rougher film surface structure. In this, the lower sheet resistance was received because of rougher morphology. When comparing the DSSC efficiency test results, we found that at a gas flow rate of 100 sccm, the highest efficiency value showed by 9.5%. On the other hand, the ITO-nanorod without plasma treatment exhibited the lowest efficiency. Hence, plasma technology can be practically applied to improve the efficiency of DSSC devices. This study will be a prototype of a highly advanced solar cell manufacturing method for the solar cell industry.
Evaluation of Coinfection and Superinfection Impact on Chikungunya and Mayaro Virus’s Replication in Aedes aegypti
Authors: de Oliveira Maria Eduarda dos Santos , Krokovsky Larissa , Couto Maria Julia Brito , Guedes Duschinka Ribeiro Duarte , Ayres Constancia Flavia Junqueira , Paiva Marcelo Henrique Santos
Published: August 2024

The co-occurrence of different arboviruses, through (re)emergence episodes in a particular region, often exacerbates public health crises associated with these pathogens. Considering the Brazilian epidemiological panorama of arboviruses cocirculation, such as Dengue (DENV), Zika (ZIKV), and Chikungunya (CHIKV) viruses, the imminent emergence of Mayaro virus (MAYV) in urban areas, and the presence of susceptible human hosts, we looked into the coinfection and superinfection impact of CHIKV and MAYV replication in Aedes aegypti. Mosquitoes were coinfected and superinfected with CHIKV and MAYV by artificial blood-feeding, and infection (IR), dissemination (DR), transmission (TR) rates, and viral load were evaluated by qRT-PCR. Our findings suggest that, Ae. aegypti can simultaneously transmit CHIKV and MAYV in coinfection scenarios. However, in superinfection assays, the initial infection (either CHIKV or MAYV) adversely affected the transmission capacity of the subsequently acquired virus, indicating replication interference between the viruses. These results have important implications for public health management actions in the country, emphasizing complex arbovirus transmission scenarios and the associated epidemiological risks.
Considering Multiple Parameters beyond BMI Alone Provides a Better Understanding of Cardiometabolic Risks Associated with Severe Obesity in Children
Authors: Kostrzeba Ewa , Bik-Multanowski Mirosław , Brandt Stephanie , Malecka-Tendera Ewa , Mazur Artur , Ranke Michael B. , Wabitsch Martin , Wójcik Małgorzata , Zachurzok Agnieszka , Przestalska-Sowa Anna , Petriczko Elżbieta
Published: August 2024

Background: The increasing prevalence of severe obesity among children and adolescents poses
a significant challenge for pediatricians and general practitioners. This study aimed to investigate
the relationships between biochemical results, anthropometry, blood pressure measurements and
bioimpedance analysis (BIA)-derived parameters, to identify potential cardiometabolic
complications associated with severe obesity. Methods: The study included 347 children (162
boys, 185 girls) aged 0-19 years, meeting criteria for severe obesity based on BMI thresholds for
different age groups. Patients were recruited in four pediatric endocrinology centers in Poland
(Zabrze, Cracow, Rzeszow, Szczecin). Each participant underwent anthropometric
measurements, pubertal stage assessment, blood pressure measurement, biochemical and
hormonal tests and BIA. Results: BMI showed significant associations with fat mass percentage
(FM%) and waist-to-height ratio (WHtR), but not waist-to-hip ratio (WHR). The relationship
between BMI and FM% was stronger in girls and prepubertal children. Metabolic syndrome (MetS)
Z-score showed a strong positive correlation with BMI in pubertal children. Negative correlation
between HDL and triglycerides was observed only in boys. Prepubertal children exhibited more
significant correlations despite a smaller sample size and shorter duration of obesity.
Conclusions: Considering multiple parameters beyond BMI alone provides a better
understanding of cardiometabolic risks associated with severe obesity in children. MetS Z-score
was not a reliable indicator of increased cardiometabolic risk in younger children. Early-onset
severe obesity was associated with a higher risk of metabolic complications. Early intervention is
crucial to mitigate metabolic complications in this population.
Management of Atypical Peripheral Neuropathy: A Case Report
Authors: Chachra Dr Alisha , Mitra Dr Sukanya
Published: August 2024

Introduction: Peripheral neuropathies are very common and occur due to multiple causes including diabetes, tuberculosis, vasculitis, thyroid disorders, immune mediated diseases, vitamin B12 deficiency and drugs. Drug induced peripheral neuropathy (DIPN) is potentially irreversible, resulting in sensory deficits and paraesthesia. DIPN due to anti-tubercular drugs is common and can be implicated on linezolid, cycloserine and isoniazid.Case: 40-year-old female, diabetic with MDR-TB presented with severe, sharp, burning pain in her lower limbs. The patient was on all longer acting ATT drug regimen and was suspected with drug induced peripheral neuropathy. Conclusion: Linezolid, is used in treatment of tuberculosis and one of the major side effects includes peripheral neuropathy which is usually quite severe, presenting predominantly with sensory symptoms. Cessation of linezolid and neuropathic pain medications reduced the pain of patient from VCPS 8-10 to 1-2. Treatment of DIPN can be challenging as adverse drug reactions while treating tuberculosis should be kept in mind. It also warrants earliest treatment by identification of the drug in disguise and timely discontinuation of the drug.