bluuebunny/crossref_metadata_2025 huggingface dataset:
On the Role of Exposure Time on Al-Si10-Mg Powder Processed by Selective Laser Melting
Authors: Leo Paola , Renna Gilda , Soni Neetesh , De Pascalis Fabio , Primo Teresa , Del Prete Antonio
Published: November 2023

In this study, the effect of increasing exposure time on microstructures, defectiveness, mechanical properties and corrosion behavior of selective laser melted sample Al-Si10-Mg powder have been investigated. The sample were processed at the same power (375 W) and scan speed (2000 mm/s) but with increasing exposure time. Exposure time equal to 40, 50 and 60 µs was applied. The features of the analyzed samples show that with increasing exposure time a better efficiency of the heat input has been obtained with larger size of melting pool and Si particles and lower defectiveness. Moreover, being the coarser microstructure associated a to lower level of voids, the average hardness is similar for the analyzed samples. The potentiodynamic curves of the samples show that the voids occurrence is more significant with respect to the scale of micro-structure on corrosion behavior being the sample processed at the highest exposure time the more resistant to corrosion. The experimental techniques used in the present study were Optical microscope, Sem microscope, Hardness and X-Ray Computed Tomography.
Root Regrowth and Discoloration in Quercus virginiana Mill. Following Linear Trenching
Authors: Koeser Andrew , Grabosky Jason , Benson Andrew , Morgenroth Justin
Published: November 2023

Background: As long-lived organisms, urban trees often encounter development and redevelopment activities in close proximity during their lifespans. These activities can damage tree roots, often through methods like root severing during trenching or excavation. Methods: In 2017, we simulated trenching damage on mature Quercus virginiana Mill. trees at three different distances from the base (3x, 6x, and 12x the stem diameter). After five years, we revisited these trees to assess root regrowth based on the cut root's cross-sectional area (CSA) and distance from the base. Results: We observed regrowth in all but 38 (6.7%) of the 557 cut roots revisited. The lack of regrowth in some roots was not associated with our original treatments, the CSA of the roots at the time of trenching, or distance between the cut root end and the trunk (minimum P-value = 0.841). On average, the observed CSA of the regrowth was 22.2% of the original root's CSA. Only our original trenching treatments significantly predicted the level of regrowth observed five years after pruning (P-value = 0.024). Discoloration due to root pruning was minimal. Conclusion: In summary, our findings indicate that root systems require many years to recover from trenching damage. Increasing the distance between trenching activities and trees may have a minor effect on root regrowth but primarily helps reduce initial stress on the tree.
The Ambiguity of the Relationship between Children’s Art and Kitsch
Authors: Kubeczková Olga
Published: November 2023

This paper identifies the problematic relationship between children’s art and kitsch from the perspective of the differentiation of the two fields. In general, the complex problem lies in identifying signs of high and low quality in works addressed to children. This paper begins with the rather troublesome formulation of who the addressee is, and what constitutes the artistic field addressed to children. Furthermore, what complicates some of the signs of aesthetic communication with children includes the simplicity of the message and the conservatism of creative methods. This paper attempts to outline different approaches to these areas of art and kitsch and demonstrates how hard, but also how necessary it is to identify both parts of the creation, considering the nature of the present children’s world.
Interactions between the protein barnase and co-solutes studied by NMR
Authors: Williamson Michael , Trevitt Clare , Kumar Yaswanth , Fowler Nicholas
Published: November 2023

The solubility, stability and function of proteins is critically dependent on the co-solutes (also described as excipients) present. There are many “rules of thumb” that have been used to select suitable co-solutes for different proteins to be stable and soluble, but very little theoretical basis for any of them. Some guidance is provided by the Hofmeister series, an empirical ordering of anions according to their effect on solubility and stability; and by osmolytes, which are small organic molecules produced by cells to allow them to function in stressful environments, such as high salt or pressure, or extremes of pH or temperature. Here we show that NMR titrations of the small protein barnase with selected Hofmeister anions and osmolytes can be used to measure and locate binding, and to separate the effects on the protein due to binding and to perturbation of the solvent. We describe a rationalisation of Hofmeister (and inverse Hofmeister) effects, which is similar to the traditional chaotrope/kosmotrope idea but based on solvent fluctuation rather than water withdrawal, and characterise how co-solutes affect protein stability and solubility, based on solvent fluctuations. This provides a coherent explanation for solute effects, and points towards a more rational basis for choice of excipients.
Robust Control of an Rotary-wing UAV with Suspended Load
Authors: Enriquez Jefferson Abraham , Galarza Tito Yvan , Cutipa Juan Carlos , Ferruzo Diego Paolo
Published: November 2023

There is a growing interest in unmanned aerial vehicles, which can be used to transport loads in emergency situations or to access difficult geography. In certain scenarios, the carried load is connected using nonrigid links attached to the vehicle’s center of gravity, creating a suspended configuration. An unmanned aerial vehicle with a suspended load is a complex system that needs to keep desired levels of performance and stability, despite the disturbances generated by the load oscillations and coupled dynamics. In this work, we design the robust control for an unmanned aerial vehicle with suspended load based in the H∞ norm and the loop shaping approach. The proposed controller is tuned to find the best robustness in terms of performance and stability, even in adverse scenarios with the presence of sensor noise, environmental disturbances and parameter uncertainties. The simulation results show the robust controller keeps good tracking, better disturbance rejections, and it is a straightforward alternative to be considered for complex systems.
A Heterogeneity Study on the Impact of Sustainable Economic Growth on Environmental Pollution: The Case of Shandong Province
Authors: Yue Junrong , Zhang Rongjie , Wu Changwei , Xu Yingkai
Published: November 2023

Sustainable economic development is often accompanied by increasingly prominent environmental problems, and it is important to explore the relationship between economic growth and environmental pollution. This paper combines the BP neural network algorithm in machine learning with traditional econometric methods to study the relationship between environmental quality and economic growth, using a fixed-effects panel model to quantify the relationship between environmental pollution and economic growth, as well as generalized method of moments (GMM) estimation to address the endogeneity of the variables, and the theory of the Environmental Kuznets Curve (EKC) to observe polynomials in the shape of the fitted curve and determine the location of the inflection point, and analyzed that wastewater discharge is expected to increase again in the coming years. Then, a BP neural network evaluation model was established to obtain the environmental quality evaluation value of Shandong Province. Finally, the spatial correlation and differences between GDP and environmental quality in Shandong Province are investigated using Moran's index and Dagum Gini coefficient, and the relationship between them is explored. On this basis, targeted recommendations for economic development and environmental governance in Shandong Province are made in terms of adjusting industrial structure, strengthening coordinated regional development, implementing differentiated environmental protection policies, and strengthening environmental monitoring and enforcement. Our study contributes to a deeper understanding of the relationship between economic growth and environmental pollution and provides important insights for policy formulation.
Formation Control of Quadrotor UAVs and Localisation Analyses Via Wireless Sensor Networks
Authors: Devery Jack , Gill Palvir Singh , Allen George , Shahra Essa , Idrissi Moad
Published: November 2023

In recent years, the cost-effectiveness of deploying and maintaining Unmanned Aerial Vehicles (UAVs), coupled with their capacity to operate in remote or hazardous environments inaccessible to human pilots, has garnered significant research attention in both military and civilian domains. The utilisation of multi-agent UAVs has experienced substantial growth, particularly for intricate tasks such as surveying and monitoring, necessitating extensive research and development efforts. This expansion demands more intricate control, communication, and coordination mechanisms. Assessing and analysing these multi-agent systems under flight dynamic conditions pose notable challenges. This paper proposes the development of a mathematical model for a leader-follower structured Quadrotor UAVs that accurately represents the dynamic behaviour while considering the ad-hoc networking system via COOJA. The aim is to construct a model that fulfils the need for a simulation environment, which researchers can employ to evaluate and analyse formation control mechanisms. Simulation results are presented from a case study to exemplify a potential application of this approach. A comparative assessment of performance between the proposed system and the traditional counterpart reveals enhanced leader-follower flight performance concerning attitude and position tracking while taking into consideration the ad-hoc networking infrastructure.
Surgical Treatment of Vertical Compressed Tibial Plateau Fracture with Temporary External Fixation Brace Combined with MIPPO Technique
Authors: Li Xu-song , Ye Lin , Wu Jun-le , Huang Li-ben , Huang Jie-feng
Published: November 2023

This study aims to evaluate the clinical effects of a temporary external fixation brace in conjunction with the minimally invasive percutaneous plate osteosynthesis (MIPPO) technique of vertical compressed tibial plateau fractures. A retrospective analysis of 12 patients with tibial plateau fractures with vertical compression changes from October 2019 to October 2020 was performed. All patients were treated with a temporary external fixator to correct the vertical shortening deformity, and then the MIPPO technique was used after reduction. All patients had satisfactory fracture reduction on postoperative imaging. The average operative time was 112.92 ± 21.47min, the times of fluoroscopy were 15.75 ± 3.16, the blood loss was 65.83 ± 10.82ml, the length of hospital stay was 12.92 ± 5.35 days, the average fracture healing time was 10.41 ± 1.5 weeks. The mean follow-up time was 23.75 ± 2.93 months. At the last follow-up, in 12 patients, the Rasmussen anatomical score was excellent in 9 patients (75.0%), good in 2 patients (16.7%), and fair in 1 patient (8.3%). The HSS score was 65.25 ± 3.31 after 1 month, 81.92 ± 1.69 after 6 months, 87.83 ± 1.41 after 1 year, and 92.25 ± 1.16 after last follow-up (F = 13.001, P༜0.001). No complications occurred in all patients during the follow-up period. For vertically compressed fractures of the tibial plateau, the use of temporary external fixators combined with the MIPPO technique can reach better correct the displacement of the vertically compressed, reducing soft tissue damage and the difficulty of surgical reduction, which is conducive to the recovery of joint function.
Comparative Statistical Analysis of Pitting in Two 2205 Duplex Stainless Steel Variants
Authors: Sun Yangting , Ran Guoyong , Tu Wenrui , Jiang Yiming , Li Jin
Published: November 2023

The inherent variability of pitting poses challenges in accurately evaluating the pitting resistance due to potential disparities in test results. This study compares the pitting resistance of two commercial 2205 duplex stainless steels. Counterintuitively, 2205-B, despite having a higher Pitting Resistance Equivalent Number and better passive film performance, exhibited a lower Critical Pitting Temperature. Through the potentiostatic pulse test and potentiostatic polarization, it was observed that 2205-B had a greater number of pitting initiation sites. Further investigation, using SEM inclusion statistics, revealed an increased presence of inclusions rich in calcium oxides as the underlying cause of this unexpected phenomenon.
Size-dependent Effect of Titania Nanotubes on ERS to Re-establish Diabetic Macrophages Homeostasis
Authors: Yu Xiaoran , Xu Ruogu , Huang Xiaoqiong , Chen Hongcheng , Zhang Zhengchuan , Wong Iohong , Chen Zetao , Deng Feilong
Published: November 2023

Background: As the diabetics age and the high incidence of severe periodontitis, they have inevitably enormous demands for oral implantation. However, impaired osseointegration remains an obstacle to implant success, in which the disturbed homeostasis of macrophages plays an essential role. Endoplasmic reticulum stress (ERS) is reported as a crucial factor leading to the macrophages homeostasis disequilibrium in diabetes, which might be modulated by the implant surface morphology. Establishing titania nanotubes (TNTs) might be an effective strategy to enhance diabetic osseointegration. However, a consensus has not been achieved on the tube size-dependent effect and underlying mechanism of TNTs on diabetic macrophage ERS.
Methods: TNTs with small (30 nm) and large diameters (100 nm) were fabricated. The biological alterations and ERS regulation of diabetic macrophages on different titanium surface, as well as the role of Ca2+ homeostasis, are observed in this study
Results: TNTs were demonstrated to alleviate the inflammatory response, oxidative stress, and ERS in diabetic macrophages, furthermore, TNT30 was superior to TNT100. A similar trend was also observed in the in vivo evaluation of macrophage phenotype and osseointegration. When ERS was inhibited, the positive effect of TNT30 vanished. Mechanistically, topography-induced extracellular Ca2+ influx might mitigate excessive ERS in macrophages by alleviating ER Ca2+ depletion and IP3R activation, evidenced by the disappearance of mitigative effect on ERS when exposed to IP3R agonist. Furthermore, TNT30 attenuated peri-implant inflammatory response and promoted osseointegration in diabetic rats.
Conclusion: This study demonstrated that TNTs with small nanodiameters could re-establish macrophage hemostasis for osseointegration by attenuating ERS, which might be related to the inhibition of ER Ca2+ depletion by topography-induced Ca2+ influx with IP3R involved, shedding light on the tube size-choice decisions and nanotube topology manufacturing.
Social Planner’s Carbon Tax Problem Revisited: A New Mathematical Approach
Authors: YURTSEVEN ÇAĞLAR , Öğüt Kaan İrfan
Published: November 2023

In its shortest form, a carbon tax is a tax on energy sources which emit carbon dioxide. The increasing importance of carbon tax after the Carbon Border Adjustment Mechanism (CBAM) debate at the global level makes us to revisit carbon tax modelling. In this paper, after a careful observation of the literature and the recent techniques in related modelling, we construct a lifetime utility maximizer social planner model. In order to analyze the effects of a carbon tax on \(C{O}_{2}\) emissions of firms, we also consider short-run preferences of firms about energy demand with recursive short run profit maximization. We establish substitutional relationships between labor and capital, as well as between renewable and nonrenewable energy sources, using the CES – Cobb Douglas mixed production function. Our primary contribution to related research is that our mixed production function allows us to characterize the complementary interaction between different energy kinds and production factors in a dynamic setting, provided that the appropriate parameters are set. Additionally, we consider the amount of time needed for a renewable energy source to significantly outperform non-renewable energy sources and establish the time-dependent input elasticity of output.
Does malreduction of the sacroiliac joint affect the clinical outcomes in unstable pelvic ring injuries after internal fixation? : a case control study
Authors: Liu Chun-gui , Li Dong-yang , Li Da-shuang , Zhuang Yan , Zhang Kun , Wang Hu
Published: November 2023

Background: To evaluate the effects with malreduction of the sacroiliac joint on the clinical outcomes in unstable pelvic ring injuries after internal fixation.
Methods: A retrospective analysis the data of patients with unstable pelvic ring injury after internal fixation from February 2016 to December 2019, all patients with disruption of the sacroiliac joint. All patients were grouped according to the maximum residual displacement of the sacroiliac joint（d）after operation. According to the post- operative CT, d≤5mm were classified as anatomical reduction group, and d＞5mm were classified as malreduction reduction group. The Majeed pelvic fracture scoring system was used to evaluate the postoperative functional outcomes, and the Visual Analog Scale was used to evaluate the postoperative pain. Re-displacement of the sacroiliac joint, or loosening and breakage of the internal plants, or re-displacement of the fracture were defined as the failure of internal fixation.
Results: A total of 86 patients were included in this study, including 48 males and 38 females. According the measurement of postoperative CT, there were 36 cases with the sacroiliac joint anatomical reduction and 50 cases with the malreduction. The excellent and good rate of Majeed score, anatomical reduction group was more than malreduction group, the difference was statistically significant (χ2=13.242, P <0.05). VAS score with anatomical reduction group was less than malreduction group, the difference was statistically significant (χ2=13.285, P <0.05). The failure rate in the anatomical reduction group was lower than the malreduction group, and the difference was statistically significant (χ2=4.129, P＜0.05).
Conclusion: Reduction and internal fixation of pelvic fractures with involving sacroiliac joint disruption, the functional outcomes with malreduction of sacroiliac joint is significantly worse than anatomical reduction. The malreduction group has a higher failure rate of internal fixation.
Trial registration: The study was conducted according to the guidelines of the Declaration of Helsinki and retrospectively registered on Honghui Hospital, Xi'an Jiaotong University (identification number: 202306002).
Method Development and Validation of Lercanidipine in Human Plasma by Using LC-Ms/MS and Comparison of PK Parameters of Lercanidipine and Its Enantiomer
Authors: D UmaMaheshwari , JAYAPRAKASH J
Published: November 2023

An improved and reliable Liquid Chromatography/tandem mass spectrometry (LC–MS/MS) method has been developed and validated for the determination of lercanidipine in human plasma. Plasma samples with lercanidipine-d3 as an internal standard (IS) were prepared by solid phase extraction on Lercanidipine in human plasma by using LC-MS/MS with Symmetry C18 (75 x 4.6 mm, 3.5 µ) column. The developed method was extended to bio-equivalence studies, in which pharmacokinetic parameters like Concentration time profiles, Cmax, AUC0 − t, AUC0−α, Tmax, T1/2, Kel, for lercanidipine was estimated. Statistical methods are used to analyze the log-transformed pharmacokinetic parameters AUC0 − t, AUC0−α and Cmax for bioequivalence of each of these parameters. Statistical analysis will be performed using WinNonlin Software, Matrix effect was assessed by post-column infusion, post-extraction spiking and standard-line slope methods. The analyte and IS's mean extraction recovery was > 94%. Five quality controls had an average accuracy (% CV) of 5.8% between batches and among batches. The results obtained for recemic and enantiomers lercanidipine were under the acceptance criteria It shows that both studies of lercanidipine under similar conditions and there is no any in vivo conversion of enantiomers. The presences of the R-enantiomer and S-lercanidipine concentration were similar then the presence of R-enantiomer spares the S-lercanidipine (eutomer) from first-pass metabolism and decision to develop the recemic form of lercanidipine.
Graphene Episulfide : Covalent Sulfur Addition to Graphene Surfaces
Authors: Martel Richard , Sprocq Simon , Hadad Elie , Schue Leonard , Amine-Mezour Mohammed , Levesque Pierre , Nascimento Rafaella , Dolle Mickael , Rochefort Alain
Published: November 2023

Graphene surfaces require chemical functionalization before it can be processed into graphene-based materials or used in device applications. Covalent addition reactions on graphene have been developed to build robust interfaces, but the chemistry at play builds on strategies involving either harsh oxidation or free radical attack, which generally offers poor control over reactivity and yields low coverage of grafts at the surface. Covalent addition of sulfur atoms onto the surface of graphene is here presented as an alternative strategy. Graphene episulfide is synthesized via a gas phase reaction in moderate conditions of temperature by a catalyst and solvent free protocol. Using Raman and photoemission spectroscopies, we demonstrate the presence of covalent bonds between sulfur atoms and graphene. By comparing the experimental results with ab-initio calculations of the vibrational and electronic states of models of graphene episulfide, a new interface mainly composed of sulfur bridges is proposed. The conditions to reach stoeichiometric ratios with sulfur approaching the theoretical limit is presented.
“When selling anything to an audience, visible publicity is key:” experiences, barriers, and enablers to participation in a COVID-19 study in Malawi.
Authors: Md Vanessa , Nyirenda Deborah , Mpinganjira Samuel , Mwapasa Victor , Nyondo-Mipando Alinane Linda
Published: November 2023

Background
Many studies in infectious struggle to recruit participants. The SARS-CoV-2 infection, transmission dynamics, and household impact in Malawi (SCATHIM) study in Malawi noted a refusal rate of 57.2%. Adequate publicity can lead to more people participating in studies. This study explored reasons for participating in the SCATHIM study.
Methods
A descriptive qualitative study informed by the Theory of Reasoned Action was conducted in Blantyre between January 2022 to March 2022 to assess factors associated with participating in a COVID-19 study among 10 index cases, 10 caregivers, 10 study decliners, and 5 research staff. Data were collected using in-depth interview guides, audio recorded, transcribed, managed using NVIVO and analysed following a thematic approach.
Results
The factors that motivated participation in the study included one’s knowledge on COVID-19, potential access to medical services including free COVID-19 tests for members of the household, financial reimbursements, and zeal to contribute to scientific knowledge. The barriers to participation included minimal publicity of the study amidst a novel condition, perceived stigma and discrimination, perceived invasion of privacy, discomfort with the testing procedures and suboptimal financial reimbursements.
Conclusion
Effective publicity and outreach strategies have the potential in decreasing the refusal rates in study participation especially if a condition is novel. Studies on infectious diseases should address stigma and discrimination to promote participation and ensure participant safety.
Temperature insensitive curvature sensor based on hollow-core fiber assisted microbubble Mach-Zehnder interferometer
Authors: Chen Mingyang , Su Xinqi , Gong Tianyi , Liang Hu , Dai Zijie , Liang Ying
Published: November 2023

A compact fiber-optical curvature sensor based on the hollow-core fiber (HCF) assisted microbubble Mach-Zehnder interferometer (HMZI) is proposed and experimentally demonstrated. Transmission spectral characteristics of the proposed curvature sensor have been investigated with a maximum intensity-interrogated sensitivity of -1.48 dB/m− 1 in a curvature range from 1.22 m− 1 to 3.46 m− 1. The temperature-induced instability is measured below 0.30 dB in a large temperature range of 35°C to 60°C, suggesting a good temperature resistance performance. The overall sensing size is controlled to be around 600 µm. Hence, the HMZI curvature sensor has several desirable merits such as wide measurement range, temperature insensitivity, and ease of integration, which make it a promising candidate in curvature-related mechanical engineering and structural health monitoring applications.
Deep Learning-based approach to classify pneumonia on chest radiographs
Authors: Hernandez-Trinidad Aron , Perez-Olivas Huetzin A. , Murillo-Ortiz Blanca O. , Guzman-Cabrera Rafael , Cordova-Fraga Teodoro
Published: November 2023

The diagnosis of pneumonia by X-rays is a widespread practice in the early detection of the disease and initiation of timely treatment. Automatic classification models using convolutional neural networks (CNN) have proven to be an effective and accurate tool in the diagnosis of this disease. A model that detects pneumonia in a set of chest X-rays, using two CNNs: ResNet50 & VGG16 is proposed in this work. The method consists of preprocessing and classifying the set of radiographs available in the Kaggle repository that contains 2,224 records classified by an expert and segmented into two divisions: training set (1,600 images with 800 normal and 800 pneumonia) and test set (624 images with 234 normal and 390 pneumonia). This model achieves 97% accuracy by classifying the set of chest images into two categories: normal and pneumonia. The performance of the automatic classification scenario is robust and proves to be effective in the classification of chest X-rays to detect pneumonia.
Flexural Properties of Aluminum Middle-Trabecular Beetle Elytron Plates with a Large Height-to-Thickness Ratio Core
Authors: Song Yiheng , Xu Yuan , Chen Jinxiang , Hao Ning , Yin Jian
Published: November 2023

To elucidate the flexural mechanical properties of aluminum beetle elytron plates with a large height-to-thickness ratio core, this study, based on experimentally validated consistency, employs the finite element method to investigate the flexural performance of the aluminum middle-trabecular beetle elytron plates (MBEPaN) with varying numbers of trabeculae N. The bending resistance mechanisms are examined from the perspectives of deformation modes and stress distribution visualizations. The results indicate the following: (1) MBEPa2 exhibits a distinctive slight upward plateau stage on the load-displacement curve, surpassing the bending mechanical performance of MBEPa6. (2) The characteristics of MBEPaN’s flexural performance are comprehensively explored by examining the macroscopic deformation extent of mid-span of each sandwich plate, the presence of trabeculae in the symmetrical plane of the honeycomb unit, as well as their deformation and stress distribution. Weak bending resistance is observed near the upper plate of the first honeycomb wall in MBEPa4 and HPa, where small C-shaped deformations occur. (3) In MBEPa2, only the first trabecula experiences localized buckling deformation near the plate, resulting in a slight upward plateau stage due to the synergistic effect of adjacent honeycomb walls. Conversely, the trabeculae in MBEPa6 exhibit a trumpet-shaped deformation that gradually flattens towards the bottom. Thus, this investigation unveils the previously unknown characteristics of the flexural performance of MBEP, a highly ductile material with a large height-to-thickness ratio, considering different numbers and distributions of trabeculae. These findings lay a solid foundation for the wider engineering application of beetle elytron plates.
Second position without movement: Enclitic particles in Passamaquoddy
Authors: LeSourd Philip S.
Published: November 2023

This paper presents an analysis of the second-position clitics of Maliseet-Passamaquoddy (Algonquian, New Brunswick and Maine) in the framework of Sign-Based Phrase Structure Grammar (Sag 2012). Unlike a previous transformational analysis (Johnson and Rosen 2015) that takes clitics to occupy a functional head in the left periphery, the proposal advanced here makes no use of movement or functional heads. Instead, clitic positions are determined by a small number of maximally simple constructional statements.
Argument realization and argument referencing in Soranî Kurdish
Authors: Salehi Ali , Koenig Jean-Pierre
Published: November 2023

Soranî Kurdish can reference up to two arguments morphologically, a subject agreement marker and an incorporated object pronoun. One of the argument referencing morphs is verb-bound and occurs in a fixed position in the verb template (after the stem), while the other is a mobile morph that can occur either verb-internally (in second or last position) or verb externally. Either the subject agreement marker or the object incorporated pronoun can be verb bound or mobile morphs, depending on the tense and presence of an NP complement. Previous literature has analyzed mobile morphs as (VP) endoclitics. We argue that this is not the case as verb-external mobile morphs occur at the end of the last word of the least oblique NP complement and cannot attach to the last word of VP-internal PPs. We provide an edge-feature based analysis of verb-external mobile morphs and show that the same realizational rules account for the exponents of mobile morph features whether they occur verb-internally or verb-externally. We furthermore suggest that the dissociation between paradigm class (verb-bound or mobile morph) and syntactic status (subject or object; agreement marker vs. incorporated pronoun) challenges views that treat morphological structure as isomorphic to syntactic structure.
The economic impact of the COVID-19 lockdown on family life and children’s eating habits
Authors: Awodiji Omotayo Adewale , Adenomon Monday Osagie , Ololo Kennedy C. , Ajayi Isiaka Gbenga
Published: November 2023

It is no tittle-tattle that the incidence of the COVID-19 pandemic has impacted the world in many areas. Nigeria got her own share of this virus in February 2020, which led to the closure of schools, worship centres, businesses, and other social arenas by the Federal Government. Based on experience and occurrences, we investigated the economic impact of children eating habits during the COVID-19 lockdown in Nigeria. The snowball sampling technique was used to collect data from 334 adults across the nation. Findings revealed that families with an increase or decrease in eating patterns are not likely to support the lockdown policy by the government during COVID-19 compared to families with unchanged eating patterns, among others. Further, families' expenditures change during the COVID-19 lockdown irrespective of their income level. This implies that the pandemic has affected negatively Nigerian parents who have been facing total and partial lockdown with no increase in their income but a decrease in a savings and corresponding increase in their children’s eating rate. We, therefore, recommend that internal institutions oversee the need to have a food reservoir in case of future occurrences of this nature whereby people could have a temporal means of survival. Additionally, parents' coping strategies can be utilised to encourage their children to learn new skills (online skill acquisition training) during the lockdown.
Where does product attachment come from? The effects of sight, hearing, and smell in the automobile market
Authors: Kato Takumi
Published: November 2023

Sensory marketing is advantageous because it can help reduce the amount invested to yield such a high effect. However, the existing literature in this area is limited to services (restaurants, hotels, retail, tourism, etc.) and foods for which it is easy to have sensitive sensory experiences. This study aimed to clarify the influence of sensory stimuli on attachment in the Japanese and American automobile markets. An online survey was distributed through a Japanese research company to 1,000 car owners in their 20s to 60s (500 people from each country). The results of applying structural modeling to the survey data confirm the significant effect of sight (β = 0.336, p-value < 0.000), which consists of styling and colors in the exterior and interior, and hearing (β = 0.379, p-value < 0.000), which consists of driving sound, door sound, and startup sound. In contrast, the results indicate no effect of smell (β = –0.031, p-value = 0.663). In addition, comparing the two countries, sight (β = 0.721, p-value < 0.000) was effective in Japan, and hearing (β = 0.741, p-value < 0.000) was effective in the United States. Practitioners should comprehensively evaluate sensory stimuli, understand their priorities, and deliver sensory experiences in multiple functions. This consistent embodiment can strengthen the consumer’s attachment to the product.
AcknowledgmentThis work was supported by Japan Society for the Promotion of Science KAKENHI Grant Number JP23K12567.
South African Generation Y students’ behavioral intentions to use university websites
Authors: van Deventer Marko , Lues Heleneze-Tianè
Published: November 2023

University websites are increasingly crucial in meeting the evolving digital demands of students. To effectively manage university websites, it is necessary to first determine students’ behavioral usage intentions of university websites and the factors that influence their intentions, which forms the purpose of this study. Data were collected at a single point in time and described the characteristics of the sample. This study, involving 319 Generation Y students registered at two South African university campuses (one traditional and one university of technology campus), utilizes structural equation modeling to explore the predictive relationships among information quality, system quality, playfulness, ease of use, trust, attitude, satisfaction, and behavioral intentions related to university website use. The study underscores the pivotal role of the university’s website in shaping student satisfaction, with information quality standing out as a significant positive influence. Additionally, playfulness significantly impacts both satisfaction and overall attitudes toward university websites. The system quality of the university website is also noteworthy, showing a statistically significant positive effect on ease of use and fostering trust among students. Furthermore, satisfaction is anticipated by ease of use, creating a cascade effect where satisfaction predicts trust and trust predicts attitudes. Ultimately, students’ attitudes emerge as a critical predictor for their behavioral intentions to use university websites. The model exhibits acceptable fit indices, demonstrating substantial explanatory power (SRMR = 0.1, RMSEA = 0.06, IFI = 0.94, TLI = 0.93, CFI = 0.94). These findings offer insights for university management and web designers to enhance online platforms, fostering student satisfaction, trust, and usage.
Concordance among three diagnostic methods for determining the position of the mandibular condyle
Authors: Terán Aidé , Liévano Alejandro , Núñez Elia , Ruíz Héctor , Cabeza Verónica , Lloret Alejandro , Lloret Miguel
Published: November 2023

The position of the condyle can be determined using different diagnostic tools, among which are transcranial X-rays (RT), Cone Beam Computed Tomography (CBCT), and the Condylar Position Indicator (CPI). This study aimed to determine the concordance among the CPI, the CBCT, and the RT as diagnostic methods for determining the condyle position. Materials and method: 32 valid cases, each of which had an RT, a CBCT, and a CPI, were analyzed by three observers. SPSS V. 26.0 program was used to calculate the Kappa trust interval, using the jackknife technique which allows to estimate of the standard error between observers. To evaluate the condylar position using CPI, an AD2 articulator was employed. A Pullinger and Hollender layout was used in the tomographic and transcranial images. Results: The concordance among the three observers for each method resulted in a value of Kappa higher than 0.879. The concordance between CBCT and RT was 0.0627, between CPI and RT it was 0.247, and between CBCT and CPI it was .188. Conclusion: The level of concordance obtained between the three observers with any given diagnostic method was very good, which indicates that the concordance that each observer obtained regarding each diagnostic method is trustworthy. In this study, it is concluded that there is a concordance in the diagnosis regarding the position of the condyle of the tomography with the transcranial radiography. There is no concordance between tomography and CPI. There was also no concordance between the CPI and the transcranial radiography.
TRILHAS POTIGUARES: EXTENSÃO UNIVERSITÁRIA NA PERSPECTIVA DA ECOLOGIA DE SABERES
Authors: Mendes de Araújo Isabelle Maria
Published: November 2023

A convergência para ações comuns pactuadas em diferentes realidades locais nas quais o Programa Trilhas Potiguares vêm atuando ao longo dos anos, parece ser um desafio e um estímulo para os fazeres da Extensão Universitária, a perspectiva da ecologia de saberes nos convida a mediar a comunicação entre diferentes saberes, transformando-os em ações significativas na/com as comunidades. Nesse sentido, o presente relato de experiência objetiva traçar um diálogo com base ético-teórica na educação popular e na ecologia de saberes, além de sistematizar vivências construídas no Trilhas-2022 no município de Poço Branco/RN. Mediante protagonismo discente, diversas oficinas e atividades foram desenvolvidas, pautadas na partilha de saberes, aprendizagens coletivas e experiências pulsantes  in loco, palco da ecologia de saberes.
Review on the Recent Development of Vehicle Seat Patent
Authors: Liu Hongbo , Liu Bingcheng , Yang Xiaodong
Published: November 2023

Background:

Seat is an important product in work and life, the rationality of its design
directly affects people's work efficiency and physical and mental health. Especially in modern vehicles, it has become an inevitable trend to use ergonomics to design the seat of modern vehicles.
This paper describes the recent research and development of seat patents based on ergonomics and
tries to put forward improvement schemes for the disadvantages of existing vehicle seats.

Objective:

We summarized the technical contributions made by the existing vehicle seat patent
achievements and summarize the existing problems or blank areas not reported. Through the
comparison and discussion, the future research direction of the vehicle seat is predicted.

Methods:

Through tracing the patent varieties of different types of representative seats, the analysis and comparison are carried out from various angles.

Results:

According to the analysis of recent seat patents, the design of modern seats has gradually
formed a scientific, systematic, and standardized system.

Conclusion:

The structural parameters and materials of seats have been closely combined with
the safety and comfort of seats. With the development of science and technology and the innovation of theory, the seats of modern vehicles will develop in the direction of functionality and personalization.
Detección de fuga de Radón en cerámicas sólidas utilizando conteo alfa
Authors: Petrick C. Susana , López Carranza Ernesto
Published: November 2023

Para calcular la edad de una cerámica por termoluminiscencia, se requiere medir la dosisradioactiva natural que la cerámica absorba cada año. Dicha dosis radioactiva natural proviene de los núcleos radioactivos, que se encuentran como impurezas en el suelo en el que estuvo enterrada la cerámica y en la cerámica misma, siendo el U-238, el Th-232 y el K-40 los isótopos radioactivos responsables por casi la totalidad de la dosis natural. 
La series radioactivas de decaimiento de dichos isótopos estarán en equilibrio secular siempre que no se produzca una separación fisica o química de los isótopos formados, y no se incrementen ni renueva ninguno de los núcleos radioactivos que forman la serie decaimiento, que terminan cuando se produce un núcleo estable de Pb. En algunos casos sin embargo, los miembros de las series pueden estar sujetos a procesos fisicos y químicos de separación que interrumpan las cadenas de decaimiento debido a las condiciones ambientales donde se produce el proceso de decaimiento. Una causa natural común de interrupción de la cadena de decaimiento del U-238, U-235 Y Th-232. 
En éste trabajo discutimos el mecanismo responsable por la emanación de radón observada en cerámicas y suelos, y probamos un método simple para detectar y cuantificar el fenómeno y determinar la corrección en el cálculo de la dosis anual calculada por conteo alfa. El método untiliza una celda de bronce y na rutina de conteo adecuada que podrían ser utilizadas también para determinar emenaciones de radón en materiales de construcci´ón como ladrillos y cemento.
Sistema para la interacción, control y monitoreo remoto de procesos, vía web, usando Java aplicación: estación meteorológica virtual
Authors: Romero Navarrete Rommel , Paz Campaña José
Published: November 2023

El presente articulo desarrolla una plataforma robusta para la gestión de procesos a distancia, Ellenguaje JAVA se emplea como lenguaje de programación en tres niveles de desarrollo: Servidores de Control, Servidor Web y Clientes Web. La interacción con los servidores de control será a través del puerto serial y/o puerto paralelo según sea el requerimiento. Así podremos interactuar con cualquier dispositivo de control especializado: Un microcontrolador, un PLC (Programable Logic Controller), un DSP (Digital Signal Procesor) o sensores sofisticados que envíen data por los puertos mencionados, lared local de servidores de Control aseguran la fiabilidad y el buen funcionamiento de nuestros procesos.La puerta de salida hacia Internet, serán los "Servidores Web", los cuales atienden a los clientes; Tal cliente no tiene acceso directo al sistema, hasta haber verificado sus privilegios. La información queviaje a través del Web está codificada. Usando un microcontrolador Sensaremos: Temperatura, hume-dad relativa, dirección de viento y velocidad de viento. Tal información puede ser monitoreada desde cualquier punto de Internet, asi mismo nuestra estación metereológica virtual permite tambien accedera datos almacenados para el resumen estadístico respectivo.
Estudio: Un scanlet para prueba y actualización de diseños destinados a la verificación de controladores de lógica difusa
Authors: Córdova Sosa Luis , Paz Campaña José , Egoávil Retamozo Jorge
Published: November 2023

Este artículo presenta un trabajo preliminar acerca de la implementación de un Scanlet para: (a) chequeo automático de generación de patrones relacionados con circuitos digitales basados en unmodelo con interrupción en presencia de falla, (b) monitoreo y depuración in situ, (c) actualización dela arquitectura de un controlador lógico difuso, y (d) inyección de falla a nivel de pines usando JavaAPI. Los puntos (a)-(c) son tareas de verificación. Como primera aproximación, el sistema STUD ha sido desarrollado empleando la arquitectura (incorporada) JTAG (Joint Test Action Group) y configurada por un CPLD para chequeo y operaciones de programación. Entretanto, las operaciones son ejecutadas por Scanlet, el cual puede ser corrido desde una página de Internet. Finalmente, un controlador lógico difuso, a manera de un núcleo IP, se usa como marca caracteristica.
Análisis de esfuerzos y deformaciones de un tanque cilíndrico para Gas Natural vehicular
Authors: Alva Dávila Fortunato
Published: November 2023

El presente trabajo trata sobre el análisis de esfuerzos y deformaciones de tanques cilíndricospara gas natural vehicular, utilizando el método analítico estudiado por Lamé en 1833,verificando los resultados por simulación numérica mediante un software comercial (Cosmos Work) que se basa en la aplicación de la técnica de elementos finitos y por el método experimental (strain gage). El estudio permitirá formular una metodología de cálculo y diseño de cilindros para gas natural vehicular, ya que, es una necesidad prioritaria para nuestro país, dada la disponibilidad del gas natural de Camisea. Actualmente, en el Perú, la tecnología sobre la fabricación de los cilindros para altas presiones no se ha desarrollado aún. La carencia de la metodología destinada al cálculo y diseño de los cilindros, fue una de lasrazones que nos ha motivado la realización de este trabajo de investigación. Los cilindros importados tienen un costo muy elevado, por lo manifestado requiere la fabricación local para abaratarlos. En este contexto se describen los métodos analíticos, apoyados en la técnica de la simulación numérica y después en la técnica del método experimental con el medidor de deformaciones, para validar el método analítico y las Normas Técnicas existentes que rigen su diseño y fabricación. El objetivo fundamental de este trabajo es, desarrollar la metodología de diseño, para determinar el espesor mínimo de pared del cilindro, para una presión de trabajo de 20 MPa, con la que opera el cilindro. Se calculan los esfuerzos y las deformaciones en elcilindro, utilizando el método analítico, el método numérico y el método experimental. Finalmente se realiza el análisis de los resultados. Culminándose con las conclusiones y recomendaciones del estudio.