bluuebunny/crossref_metadata_2025 huggingface dataset:
Factors Influencing Consumer Adoption of On-Demand Social Media Platforms.
Authors: TK SHIBAHATHULLA , ASHRAF ALI MOHAMMED
Published: September 2024

This study examines the factors influencing consumer adoption of on-demand social media platforms characterized by ephemeral content. As these platforms rapidly gain popularity, understanding adoption drivers is crucial for researchers and practitioners. The study develops and tests a comprehensive model integrating traditional technology acceptance factors with platform-specific constructs. Using partial least squares structural equation modelling on data from 180 social media users in Kerala, India, the research reveals that convenience is the strongest predictor of adoption intention, followed by perceived usefulness, interpersonal influence, and enjoyment. Surprisingly, factors like perceived ease of use, social influence, and platform-specific features such as ephemerality and visual focus did not significantly impact adoption directly. Age showed a marginal negative effect, while gender had no significant impact. The findings challenge some prevailing assumptions about on-demand social media adoption and highlight the need for refined models specific to this context. The study contributes to technology adoption literature by demonstrating the primacy of convenience in driving the adoption of these platforms. It also offers practical insights for developers and marketers, suggesting that prioritizing convenience and perceived usefulness in design and marketing may be more effective than emphasizing specific features. Future research directions are proposed to address limitations and further explore this evolving digital landscape.
Air Quality Benefits of Renewable Energy: Evidence from China’s Renewable Energy Heating Policy
Authors: Tang Aidi , Zhu Yunxuan , Gu Wenjia , Wang Ce
Published: September 2024

This paper examines the impact of renewable energy heating on air quality in northern China, using the Qinling Mountains-Huaihe River line as a quasi-natural experiment to distinguish between regions with central heating and those without. Employing a difference-in-differences approach and analyzing panel data from 299 cities between 2014 and 2022, our findings indicate that the renewable energy heating policy has significantly improved air quality. Specifically, the policy led to substantial reductions in the Air Quality Index (AQI) and concentrations of key pollutants: SO2 by 28.31%, CO by 7.57%, NO2 by 5.72%, and PM2.5 by 7.15%. The policy's effects are most pronounced in regions with lower temperatures and in the eastern parts of the country. Further analysis emphasizes the critical role of energy transition, environmental regulations, and government investment in technology as key drivers of these air quality improvements.
Wood-Cement Composites: A Sustainable Approach for Mitigating Environmental Impact in Construction
Authors: Maier Dorin , Manea Daniela Lucia , Tamas-Gavrea Roxana , Alexandra Tiriac , Costin Paul
Published: September 2024

There is a growing awareness of the detrimental environmental impact of the construction industry, primarily due to the utilization of building materials that necessitate energy-intensive processes for their production. The objective of this paper is to explore whether mixing wood and cement could serve as a viable solution to mitigate this adverse environmental effect. The data was obtained by extensively investigating the Clarivate Web of Science database, adhering to the PRISMA technique guidelines, and subsequently processed using Bibliometrix and VOSviewer software. An in-depth critical analysis of the literature revealed a heightened interest in this subject matter in recent years, with the focal points evolving from initial experimental endeavors aimed at understanding the behavior of the innovative wood cement composites, primarily in terms of their mechanical properties, to assessing their environmental impact and the advantages associated with their use. The researchers suggest that optimal results can be achieved by treating the wood with tetraethyl orthosilicate, incorporating cellulose nanocrystal particles or wollastonite into the mixture, and utilizing wood from the Pinus species. Furthermore, it was discovered that a noticeable improvement in strength is only attainable if a low percentage of wood, up to 30%, when wood ash is employed. Ongoing research concerning wood and cement composites continues to progress, with regular advancements and breakthroughs, thus offering promising prospects for the development of superior and eco-friendly building materials.
Unraveling Youth Indebtedness in China: A Case Study Based on “Debtors Avengers” Community on Douban
Authors: Zhang Junan , Liu Dong
Published: September 2024

Over-indebtedness has become an increasingly serious problem among young people in China. Utilizing atlas.ti, a qualitative analysis software, this paper delves into the textual data of the online community named “Debtors Avengers” on on the Chinese website Douban.com. Employing a combined analytical framework of life cycle and credit liberalization hypotheses, the paper examines the underlying causes of youth indebtedness.
This study unveils three key findings: First, the escalating debt among young people is not merely a consequence of irrational consumer behaviors, fueled by rampant consumerism at an individual level. Rather, it is also intricately linked to their economic activities within specific life cycle phases. Second, from a structural risk perspective, youth indebtedness is not tied only to broad socio-economic risks, but is also a byproduct of the shift towards socio-financial digitization and the normalization of credit usage. Finally, the burgeoning issue of youth indebtedness stems from a confluence of factors. These include individual aspects such as distinct life situations in youth life stages, the probability of unexpected events, and a lack of financial literacy. Concurrently, youth indebtedness is influenced by the tenuous position of the youth in the labor market, risks associated with significant public safety occurrences, and a ‘spiral of indebtedness’ instigated by the digitalization of finance and the normalization of credit.
In light of the deepening integration of financial inclusion, it becomes imperative to refine financial policies, enhance financial education, and establish a framework for intervening against financial aggression. This approach is crucial in addressing and mitigating the challenges posed by youth indebtedness in this evolving economic landscape.
Impact of the COVID-19 Prioritization Recommendations on Pathological Stages of Urologic Malignancies. A Real-World Analysis at a High-Volume Referral Institution
Authors: Grosso Antonio Andrea , Campi Riccardo , Di Maida Fabrizio , Pecoraro Alessio , Conte Francesco Lupo , Cangemi Vincenzo , Catanzaro Rossella , Kucuku Neliana , Doumit Nassima , Mari Andrea , Masieri Lorenzo , Serni Sergio , Minervini Andrea
Published: September 2024

Background: In response to the COVID-19 pandemic, the European Association of Urology (EAU) Guidelines defined priority groups to guide the prioritization of surgery for urological malignancies. The objective of this study was to evaluate the impact of the COVID-19 prioritization recommendations on tumor pathological characteristics in a real-world setting at our academic referral Institution.
Methods: We compared baseline and pathological tumor features of all patients with urological malignancies treated during the pandemic period (2020-2021) versus in the post-pandemic period (2022-2023). Our institution adhered to the International recommendations and prioritized those cases defined as “high-risk”.
Results: Data of 9196 patients treated for urological malignancies were reviewed and grouped according to period of surgery (4401 in the pandemic vs 4785 in non-pandemic period). The overall number of surgical procedures was comparable for all diseases except for the number of radical prostatectomy (1117 vs 1405; p=0.03) and partial nephrectomy (609 vs 759; p=0.02) which were significantly lower in the pandemic period. Regarding tumors’ pathological features, none of the recorded variable was found to differ according to period of surgery, including disease stage, tumor grading, presence of necrosis, lymphovascular invasion, histological variants.
Conclusion: A correct policy of prioritization of oncological pathologies during emergency periods and a centralization of oncological cases in reference centers reduces the possible risk of worsening cancer disease features related to the reorganization of healthcare resources.
Evaluation of an Automatic Signal Detection of In Situ Hybridization for Detecting HPV DNA in Cervical Tissue Derived from Patients with Cervical Intraepithelial Neoplasia
Authors: Przybylski Marcin , Millert-Kalińska Sonja , de Mezer Mateusz , Krzyżaniak Monika , Kurzawa Paweł , Żurawski Jakub , Jach Robert , Pruski Dominik
Published: September 2024

Cervical cancer is 4th the most common cancer in women worldwide. Due to the prevalence of HPV in the population (80-90%), the scientists are likely to discover even more associations of this pathogen with other diseases in the future. In recent years, ISH assays that use automated signal-detecting methods in ormalin-fixed, paraffin-embedded (FFPE) cervical tissue, such as the enzyme-categorized signal-detecting system, have shown a higher sensitivity. To evaluate automatic signal detection of in situ hybridization (ISH) assay for detecting human papillomavirus (HPV) DNA, we compared the ability of an ISH probe, Inform HPV II and III (Ventana Medical Systems, Tucson, AZ), to that of PCR assays to detect HPV DNA in cervical tissue specimens with cervical intraepithelial neoplasia (CIN; CIN 1, 28 cases; CIN 2, 22 cases; and CIN 3, 20 cases) and normal cervix (2 cases). Our findings showed significant relation was confirmed between ISH III level and HPV outcome (positive/negative). Patients with positive HPV outcomes had significantly lower ISH III levels, MD = -7961.82 CI95 [-17230.00; -199.21], p = 0.005. Automatic signal detection of ISH assay is not particularly applicable to cervical tissue material. A more useful method of confirming the presence of HPV in the cervix is ​​the HPV test with genotyping, as it allows for collecting a larger amount of material from the cervical disc and canal. The interpretation of a positive or negative ISH test must be guided in the context of clinical history and morphology.
Prevalence, Characteristics, and Distribution of Human Papillomavirus According to Age and HIV Status in Women of Eastern Cape Province, South Africa
Authors: Mbulawa Zizipho Z. A. , Kondlo Sinazo , Toni Sinalo , Faye Lindiwe M , Businge Charles B
Published: September 2024

Human papillomavirus (HPV) is the most sexually transmitted infection associated with the development of cervical cancer. This study investigated cervical HPV prevalence, characteristics and distribution according to age and human immunodeficiency virus (HIV) among women attending public community health facility in the Eastern Cape Province of South Africa. A total of 325 participants (aged 18 to 60) visiting a community health facility for any reason were recruited. Cervical HPV infection was detected using the Seegene Anyplex™ II HPV28 assay. Overall HPV prevalence was 65.2% (95% CI: 59.9–70.2%), with the highest prevalence of 80.9% (95% CI: 67.2–89.8%) observed in the 18–25 years age group and lowest prevalence of 46.3% (95% CI: 35.8–57.1%) in 46–60 years of age. HR-HPV infection was found to decrease with increasing age among women who were HPV infected by any type (p=0.02), but not when stratified according to HIV status. A proportion of 12.9% (42/325) were infected with one or more HPV types covered by the Cervarix® HPV vaccine (HPV-16 and/or -18), 18.8% (61/325) by those covered by Gardasil®4 (HPV-6, -11, -16 and/or -18) and 42.2% (137/325) by those covered by Gardasil®9 (HPV-6, -11, -16, -18, -31, -33, -45, -52 and/or -58). Alpha-9 HPV species were the most dominant species (40.6%, 132/325), followed by alpha-7 species (29.8%, 97/325). In the overall population, alpha-9 HPV species were always part of the most dominant HPV alpha species co-infection, which were alpha-9 and -7 species (17.5%, 57/325), alpha-9 and -5 species (9.8%, 32/325), and alpha-9 and -6 species (9.5%, 31/325). High overall HPV, HR-HPV, and alpha-9 species prevalence were observed among women attending the public health facility. These findings contribute to the limited HPV distribution data among Eastern Cape women, which could be used to improve HPV-related policy and assess the effectiveness of the HPV vaccination.
Effect of Citrus Fruit Constructions on Gas Diffusion Resistance and Internal Gas Concentration of Oxygen and Carbon Dioxide for Various Cultivars of Citrus Fruits
Authors: Kazuya Morimatsu , Keiji Konagaya
Published: September 2024

Various cultivars of citrus fruits have unique construction, such as thick outer skin. These constructions generate gas diffusion resistance between atmosphere and fruit, which can limit a gas exchange of O2 and CO2. However, it has not been sufficiently investigated. In this study on 7 cultivars of citrus fruit, it was aimed firstly to investigate a gas diffusion resistance utilizing ethane efflux method and secondly to investigate internal gas concentration of O2 and CO2. As a result, a cultivar of citrus fruit with slimer outer skin thickness had lower resistance. For the internal gas, a high CO2 concentration in comparison with the atmosphere was observed even in the fruits with the minimum resistance, which no considerable difference among all cultivars was observed in regardless of gas diffusion resistance value. However, when the fruits stored at 25 °C for 2 weeks, it was tended to increase CO2 gas concentration and decrease O2 gas concentration with increase in the resistance value. Therefore, when respiration of citrus fruits is activated at ambient temperature, self-control system of internal gas concentration can be driven to suppress their respiration, which was induced by gas diffusion resistance generated from their construction.
A Consumer Preferences. An Influence of Society on the Individual
Authors: Matysiak Lukasz , Fidler Julia
Published: September 2024

In this paper, we define the consumer preference relation from scratch. We study algebraic and topological properties for the preference magma that reflects the consumer. We also consider the influence of society on an individual's preference.
The Flight Test Results of Altitude Stabilization System Dedicated for the Wing-in-Ground UAV
Authors: Chodnicki Marcin , Falkowski Krzysztof , Sigiel Norbert
Published: September 2024

The dynamic development of robotics is affecting people's lives. Flying robots replace pilots and crews in performing dangerous tasks. There are various designs of the above-mentioned robots such as multi-rotors, fixed-wing aircraft, helicopters, among which wing-in-ground (WIG) units can also be distinguished. WIG vehicles, which utilize ground effect to enhance efficiency and stability, share similarities with UAVs in their control and aerodynamic challenges.
The article presented the results of the autopilot test for the NeoX UAV, which have the potential to be utilized in WIG UAVs. The NeoX was developed at the Air Force Institute of Technology as a reconnaissance flying robot and is a tailless mini UAV. It has a characteristic feature which is the flying wing with a small fuselage. The electric engine with the pusher propeller ensures thrust. The tailless airplane has a greater drag-to-lift ratio than a conventional airplane, but this airplane configuration needs a control system that ensures a stable flight. The structure of auto-pilot for the horizontal flight phase (a cruise phase), the climbing, and the descending phase were presented. The authors concentrated on the longitudinal channel of autopilot and showed the recorded results from the flight tests.
The research focused on developing autopilot system that could be adapted for use in WIG craft, which operate with similar aerodynamic principles but require unique control adaptations due to their proximity to the water or ground. The findings from the NeoX UAV tests are instru-mental in enhancing the stability and performance of these specialized crafts, ensuring safer and more efficient operation in their respective environments.
Electromagnetic Imaging for Breathing Monitoring
Authors: Vassilyev Ivan Veniaminovich , Mendakulov Zhassulan Korabayevich
Published: September 2024

Search for the new non-invasive methods of investigating the functioning of human internal organs is an urgent task. One of these methods for assessing the functioning of the human res-piratory system is electromagnetic sensing, based on a significant difference in the dielectric permittivity of muscle tissue and air. During breathing, when the lungs are filled with air, the dielectric permittivity of the lungs decreases, which leads to a change in the level of the elec-tromagnetic signal passing through the body.
Results of experiments on recording changes in the level of electromagnetic radiation passing through the human body, performed on an experimental device consisting of eight transmitting and receiving antennas located on opposite sides of the chest have been presented in the article. The possibility of visualizing the measured “pulmonograms” in the form of dynamic two-dimensional images showing the process of filling various parts of the lungs with air has been demonstrated.
Initial Experience with the 4D Mini-TEE Probe in the Adult Population
Authors: Papadopoulos Konstantinos , Ikonomidis Ignatios , Coisne Augustin , Özden Kayhan Özge , Tzikas Apostolos , Fragakis Nikolaos , Antoniadis Antonios , Vannan Mani A , Donal Erwan
Published: September 2024

Introduction: Transesophageal echocardiography (TEE) is a vital diagnostic tool in clinical prac-tice, particularly in transcatheter interventions where it aids in both pre-operative planning and intra-operative guidance. Traditional TEE probes often require general anesthesia due to patient discomfort. However, the development of miniaturized TEE probes presents a promising alter-native, enabling routine examinations and interventions with minimal sedation. This study evaluates the feasibility of performing a complete 2D/4D TEE protocol with the new 4D-mini-TEE probe in echocardiography departments and its application in transcatheter interventions.
Methods: This prospective, observational study included 30 consecutive patients from two high-volume European hospitals (Interbalkan Medical Center, Thessaloniki, Greece, and Rennes University, France) undergoing TEE or transcatheter interventions. The new 4D-mini-TEE 9VT-D probe (GE Healthcare) was utilized. The quality of the images and the tolerance of the probe were assessed in the Cath lab during interventions and in the echocardiography department during routine TEE examinations.
Results: Direct comparison of the 4D-mini-TEE probe with the standard 6VT-D probe, confirmed the excellent image quality of this new pediatric probe. Most of the patients required minimal sedation or local oropharyngeal anesthesia, with satisfactory tolerance reported. Most of the transcatheter procedures did not require general anesthesia and intubation, resulting in shorter procedural time. Both 2D and 4D imaging modalities offered adequate intra-operative guidance for transcatheter procedures.
Conclusions: The 4D-mini-TEE probe delivers exceptional imaging capabilities for routine ex-aminations and transcatheter interventions without needing sedation. Its use reduces esophageal trauma and the need for general anesthesia, enhancing patient comfort and safety.
NEUROVISUALIZATION OF NEUROVASCULAR CONFLICT
Authors:   Tashkent State Dental Institute, ABDULLAYEVA MUBORAK B. , INOYATOVA SITORA O. ,   Tashkent State Dental Institute, YODGOROVA UMIDA G. ,   Tashkent State Dental Institute, HIKMATULLAEVA SHAKHNOZA SH. ,   Tashkent State Dental Institute, YADGAROVA LOLA B. ,   Tashkent State Dental Institute, DADAZHONOV ZIYOVIDDIN A. ,   Tashkent State Dental Institute
Published: September 2024

Introduction. According to the World Health Organization, the annual incidence of new cases of trigeminal neuralgia is 3 to 5 per 100,000 people. Views on the pathogenesis of classical trigeminal neuralgia changed significantly after Peter Jannetta had published his own results of the microvascular decompression of this condition. This was preceded by some publications dealing with the anatomical features of the trigeminal nerve relationship with the arterial vessels of the cerebellum. To diagnose neurovascular conflict in patients with classic trigeminal neuralgia, magnetic resonance imaging is widely used in vascular mode with 3D volumetric image reconstruction. Despite specific magnetic resonance imaging descriptions, the neurovascular conflict site is not always visible. The results of surgical treatment show that pain disappears immediately after microvascular decompression surgery. Since myelin cannot regenerate within a few hours, other factors may explain this rapid therapeutic effect and require further study. Aim. Comparison of data obtained using magnetic resonance imaging and computed tomography angiography to visualize neurovascular conflict to assess the imaging quality. Materials and Methods. 315 patients (202 women, 113 men, mean age 55.06±15.49 years) with suspected neurovascular conflict were examined. All patients underwent the computed tomography and magnetic resonance imaging of the brain to confirm a neurovascular conflict. Results and Discussion. Visualization of the neurovascular conflict on magnetic resonance imaging was more detailed and clearer as compared with the results of spiral computed tomography angiography, providing better anatomical resolution, including clearer differentiation of vascular structures and nerves, and small vascular branches. In a magnetic resonance imaging study, some patients were found to have more severe trigeminal nerve compression as compared to the findings of spiral computed tomography angiography. Conclusion. In summary, magnetic resonance imaging in different modes helps localize neurovascular conflict in patients with trigeminal neuralgia. Its presence in combination with standard assessment increases magnetic resonance imaging sensitivity up to more than 89% without increasing the risk of harm to patients or causing any additional costs.
Clinical Outcomes Do Not Deteriorate Over Time Following Primary Reverse Total Shoulder Arthroplasty
Authors: Kriechling Philipp , Calek Anna-Katharina , Hatziisaak Kimon , Hochreiter Bettina , Bouaicha Samy , Wieser Karl
Published: September 2024

Background:

Reverse total shoulder arthroplasty (RTSA) offers satisfactory mid-term outcomes for a variety of pathologies, but long-term follow-up data are limited. This study demonstrates the long-term clinical and radiographic outcomes as well as the predictive factors for an inferior outcome following RTSA.

Methods:

Using the prospective database of a single, tertiary referral center, we included all primary RTSAs that were performed during the study period and had a minimum 10-year follow-up. Clinical outcomes included the absolute Constant-Murley score (CS), relative CS, Subjective Shoulder Value (SSV), range of motion, pain, complication rate, and reintervention rate. Radiographic measurements included the critical shoulder angle (CSA), lateralization shoulder angle (LSA), distalization shoulder angle (DSA), reverse shoulder angle (RSA), acromiohumeral distance (ACHD), center of rotation, glenoid component height, notching, radiolucent lines, heterotopic ossification, and tuberosity resorption.

Results:

A total of 135 shoulders (133 patients) were available for analysis at a mean follow-up of 10.9 ± 1.6 years. The mean age was 69 ± 8 years, and 76 shoulders (76 patients; 56%) were female. For most of the clinical outcomes, initial improvements were observed in the short term and were sustained in the long term without notable deterioration, with >10-year follow-up values of 64 ± 16 for the absolute CS, 79% ± 18% for the relative CS, 79% ± 21% for the SSV, and 14 ± 3 for the CS for pain. However, after initial improvement, deterioration was seen for flexion and external rotation, with values of 117° ± 26° and 25° ± 18°, respectively, at the final follow-up. Scapular notching, heterotopic ossification, and radiolucent lines of <2 mm progressed during the study period. Younger age (p = 0.040), grade-II notching (p = 0.048), tuberosity resorption (p = 0.015), and radiolucent lines of <2 mm around the glenoid (p = 0.015) were predictive of an inferior outcome. The complication rate was 28%, with a reintervention rate of 11%.

Conclusions:

RTSA provided improved long-term results that did not significantly deteriorate over time for most of the clinical parameters. Negative clinical outcome predictors were younger age, grade-II notching, tuberosity resorption, and radiolucent lines of <2 mm around the glenoid.

Level of Evidence:

Therapeutic Level IV. See Instructions for Authors for a complete description of levels of evidence.
Human well-being and natural infrastructure : assessing opportunities for equitable project planning and implementation
Authors: Kalaidjian Ellis , Kurth Margaret , Kucharski John , Galaitsi Stephanie , Yeates Elissa
Published: September 2024

There is consensus within psychological, physiological, medical, and social science disciplines that active and passive exposure to nature enhances human well-being. Natural infrastructure (NI) includes elements of nature that can deliver these ancillary well-being benefits while serving their infrastructure-related purposes and, as such, offer great promise for agencies including the U.S. Army Corps of Engineers as a means of enhancing economic, environmental, and societal benefits in civil works projects. Yet, to date, NI are typically framed as alternatives to conventional infrastructure but are rarely competitive for project selection because there is no standardized approach to demonstrate their value or justify their cost. The infrastructure projects subsequently selected may not maximize societal well-being or distribute benefits equitably. A framework is needed to capture diverse and holistic benefits of NI. As part of ongoing research, this paper describes the components necessary to construct a framework for well-being benefits accounting and equitable distribution of NI projects and explores how they might be applied within a framework. We conclude with methodological examples of well-being accounting tools for NI that are based on ongoing research and development associated with this project. The findings provide insights and support for both the Engineering with Nature community and the community of NI practitioners at large.
Lineamientos para la asignación de bonificaciones – Miembros de los comités de ética de la Universidad
Authors:   Universidad Científica del Sur
Published: September 2024

Lineamientos para la asignación de bonificaciones – Miembros de los comités de ética de la Universidad. Versión 1.0 (2018). Registro histórico. Vea la versión posterior en: https://repositorio.cientifica.edu.pe/handle/20.500.12805/3676
Lineamientos para la asignación de bonificaciones – Asesoría y revisión de trabajos de investigación (segunda especialidad, residentado médico).
Authors:   Universidad Científica del Sur
Published: September 2024

Lineamiento para asignación de bonificaciones por asesoría y revisión de trabajos de investigación conducentes a segunda especialidad o residentado médico. Versión 1.0 (2021). Registro histórico. Vea la versión vigente en: https://repositorio.cientifica.edu.pe/handle/20.500.12805/3668
Política – Repositorio institucional de la Universidad Científica del Sur
Authors:   Universidad Científica del Sur
Published: September 2024

Política para el repositorio institucional. Versión 2.0 (2022)
Lineamiento – Grupos de investigación
Authors:   Universidad Científica del Sur
Published: September 2024

Lineamiento – Grupos de investigación. Versión 2.0 (2023).
Lineamiento – Pagos de derechos de publicación en revistas indizadas de investigaciones de docentes, investigadores y estudiantes de la Universidad
Authors:   Universidad Científica del Sur
Published: September 2024

Lineamiento – Pagos de derechos de publicación en revistas indizadas de investigaciones de docentes, investigadores y estudiantes de la Universidad. Versión 2.0 (2023). Registro histórico. Ver la versión posterior en: https://repositorio.cientifica.edu.pe/handle/20.500.12805/3703
Instructivo – Pautas para la sustentación de tesis virtual – versión 2024.
Authors:   Universidad Científica del Sur
Published: September 2024

Instructivo para la sustentación de tesis virtual. Versión 2.0 (2024).
HLC-YOLOv8: An algorithm for disordered parts recognition based on improved YOLOv8
Authors: Xu Jiazhong , Tong Xin , Song Ge , Huang Cheng
Published: September 2024

In order to address the challenge of recognizing parts placed on an assembly line in a disordered manner, a disordered parts recognition algorithm HLC-YOLOv8 based on improved YOLOv8 is proposed. To enhance the accuracy and robustness of image recognition and processing, the HorNet module is introduced into the backbone network. This module is capable of effectively fusing features from different layers, thereby improving the feature extraction capability. Furthermore, to enhance computational efficiency and speed, the LightConv module is employed in the neck network. This module features a simpler structure with a smaller number of parameters, rendering it more efficient than the standard convolutional operation. In Addition, the ConTainer module is integrated into the conventional YOLOv8 architecture, which integrates and understands the contextual information in the image more efficiently, enhances the sensory field of the model, and improves the accuracy of small target recognition. The experimental results on the disordered parts datasets show that the improved model in this paper has better detection performance, and the detection accuracy and speed have been significantly improved to achieve the purpose of real-time identification of disordered parts.
Effect of Lime Neutralization Wastewater on the Performance of Alkali-Activated Slag / Fly Ash Mortars
Authors: Zhou Tao , Li Jin
Published: September 2024

This paper was conducted to upcycle lime-neutralize etching wastewater (LNW), produced from the etching of cenospheres for producing perforated cenospheres (PCs), into alkali-activated slag / fly ash, considering the high contents of Ca2+, Cl-, and OH-. The effects of LNW on the fresh properties, hydration products, compressive strength, microstructure and nanomechanical properties of AASF were investigated. Results revealed that the addition of LNW extended the setting times and inhibited the early hydration of AASF due to the existence of Ca2+ and NH4+ in LNW. In addition, the existence of Ca2+ in LNW reacts with NaOH to form Ca(OH)2, which can work as an auxiliary activator for AASF. Consequently, the LNW-added AASF mortars exhibited denser pore structures and higher compressive strengths. By using 25—100% LNW, the compressive strengths of AASF mortars can be improved by 2.7—18.9% (3d), 4.8—19.5% (7d) and 5.6—19.7% (28d), respectively.
Sensorless Anti-Control and Synchronization of Chaos of Brushless DC Motor Driver
Authors: Souhail Wahid , Khammari Hedi
Published: September 2024

The present study examines the anti-control of chaos in a brushless DC motor. We use several numerical approaches to analyze periodic and chaotic processes, including bifurcation diagrams, and parametric regions of periodic oscillations. Anti-chaotic control can be implemented by using an external periodic term or an external constant. The investigation of the parametric singularities of brushless DC (BLDCM), permits to identify of a complex bifurcation structure namely the Limit Point (LP), the Hopf (H), and the Bogdanov-Takens (BT) bifurcations, period-doubling bifurcation and route to chaos. Parametric singularities are analyzed using a variety of anti-control signals, including constant voltage, periodic square, saw-tooth wave, triangular, and so on. The simulation results show that adding constant or periodic factors improves chaos and anti-control effects.
Genome-wide ribosome profiling reveals dynamic translational landscape in Arabidopsis seedling roots under simulated microgravity
Authors: Xu Peipei , yang yiling , hu jinbo , cai weiming , zheng huiqiong
Published: September 2024

Plants can adapt to environmental change through a variety of transcriptional and translational mechanisms. Although extensive knowledge exists about plant stress responses at the transcriptional level, understanding of these responses at the translational level is limited. This study aimed to evaluate the translational dynamics of plants in a simulated microgravity environment through the utilization of a ribosome profiling assay. A comparative analysis of ribosome profiling data and RNA-seq on a global scale demonstrated a modest correlation in the alteration of gene expression between transcriptional and translational levels. However, under one third of responsive genes exhibited concurrent transcriptional and translational activities. We found that simulated microgravity simulation elicited separate transcriptional and translational responses in plants. The findings indicated a significant alteration in the translational efficiency (TE) of 1081 genes under simulated microgravity conditions. Subsequent analysis identified specific sequence characteristics, including GC content and coding sequence length, as influential factors on gene TE. The abundance of upstream open reading frames (uORFs) within gene promoters indicates a possible influence on the translation efficiency of primary open reading frames located downstream. These results suggested that in response to simulated microgravity, plants had a responsive translational mechanism that interacted with transcription in a coordinated manner.
Intrinsically Anisotropic 1D NbTe4 for Self-Powered Polarization-Sensitive Photodetection
Authors: Yu Peng , Luo Huahu , Wu Fafa , He Chaowei , Shen Wanfu , Hu Chunguang , Zhao Weina , Yang G. W.
Published: September 2024

Polarization-sensitive photodetection enhances scene information capture, crucial for modern optoelectronic devices. One-dimensional (1D) materials with intrinsic anisotropy, capable of directly sensing polarized light, are promising for such photodetectors. NbTe4, a quasi-1D transition metal tetra-chalcogenide, offers significant benefits for polarization-sensitive photodetection due to its structural anisotropy. Nonetheless, to date, the anisotropic properties of 1D NbTe4 have not been reported. Herein, NbTe4 nanobelts were synthesized via mechanical exfoliation from needle-like bulk crystals, and their anisotropic and optoelectronic properties were comprehensively studied. Angle-resolved polarized Raman spectroscopy, in conjunction with azimuth-dependent reflectance difference microscopy, confirmed that 1D NbTe₄ exhibits intrinsic structural and in-plane optical anisotropy. 1D NbTe4 device demonstrated characteristic anisotropic photodetection behavior, achieving dichroic ratios of 1.16 at 671 nm and 1.24 at 1064 nm. The 1D NbTe4 device exhibits distinct anisotropic photodetection properties, achieving dichroic ratios of 1.16 at 671 nm and 1.24 at 1064 nm. Meanwhile, the device exhibits a pronounced photothermoelectric effect, conferring a broad spectral photoresponse ranging from visible to near-infrared wavelengths (532-1064 nm), with a rapid response time of 158 ms. This study demonstrates that NbTe4 inherently possesses in-plane anisotropy, making it a promising candidate for polarization-sensitive photodetection applications.
Immunogenicity of intraperitoneal and intranasal liposome adjuvanted VLP vaccines against SARS-CoV-2 infection
Authors: Chulanetra Monrat , Punnakitikashem Primana , Mahasongkram Kodchakorn , Chaicumpa Wanpen , Glab-ampai Kantaphon
Published: September 2024

Humans get SARS-CoV-2 infection through inhalation; thus, vaccine that induces protective immunity at the virus entry site is appropriate for early control of the infection. In this study, two anionic liposome-adjuvanted VLPs vaccines made of full-length S, M and E proteins SARS-CoV-2 were formulated. S1-S2 junction of S protein displayed on VLPs of one vaccine (L-SME-VLPs) contained furin cleavage site, while VLPs of another (L-S¢ME-VLPs) did not. Both vaccines were similarly/equally immunogenic in mice. Mice immunized parenterally with the vaccines had principally serum IgG3 neutralizing antibodies, while mice immunized intranasally produced predominantly specific Th1-antibody isotypes (IgG2a and/or IgG2b) in bronchoalveolar lavage samples. IgG3 isotype is known to be highly efficient in complement activation, opsonophagocytic activities, and antibody-dependent cell-mediated cytotoxicity, which causes virus clearance upon infection. Nevertheless, complement fixation and immune-complex formation may exacerbate tissue inflammation, cytokine storm, and lung immunopathology in the SARS-CoV-2-infecting host, which exacerbate the COVID-19 morbidity. Th1 antibodies are less efficient in complement fixation and phagocytic activity but exhibit stronger anti-viral effects than other antibody isotypes; thus, confer protection with minimal immunopathology upon new infection. The intranasal liposome-adjuvanted VLP vaccines should be tested further towards the clinical use as effective, safe, and better compliant vaccines against SARS-CoV-2.
Epac1 increases myosin regulatory light-chain phosphorylation, energetic cost of contraction, and susceptibility to heart failure
Authors: Ohnuki Yoshiki , Suita Kenji , Ishikawa Misao , Mototani Yasumasa , Nariyama Megumi , Ito Aiko , Matsuo Ichiro , Hayakawa Yoshio , Morii Akinaka , Kiyomoto Kenichi , Tsunoda Michinori , Mitsubayashi Takao , Saeki Yasutake , Ishikawa Yoshihiro , Okumura Satoshi
Published: September 2024

β-Adrenergic receptor (β-AR) stimulation of the heart, leading to increased cardiac output, is mediated by cyclic AMP (cAMP), which induces protein kinase A (PKA)-mediated phosphorylation of the myofilament proteins troponin I (TnI) and myosin binding protein-C (MyBP-C). The aim of this study was to investigate the contribution of the exchange protein activated by cAMP (Epac1), a PKA-independent cAMP effector, to the response of cardiac myofilaments to β-AR stimulation. The calcium sensitivity of force and ATPase activity, and the tension cost (ATPase activity/force) were significantly greater in skinned myocardium from transgenic mice specifically overexpressing Epac1 in the heart (Epac1TG) and wild-type (WT) mice treated with 8CPT-AM, an Epac-selective cAMP analogue, as compared with non-transgenic (NTG) or control mice, respectively. In addition, myosin regulatory light chain (RLC) phosphorylation was significantly greater in Epac1TG and WT mice treated with 8CPT-AM than in NTG or control mice via phospholipase C/phosphokinase C, without any change in the phosphorylation of TnI or MyBP-C. We also examined the effects of chronic β-AR stimulation on cardiac function in Epac1TG. The left ventricular ejection fraction was significantly decreased from baseline in both NTG and Epac1TG after isoproterenol infusion (60 mg/kg/day for 1 week), but the magnitude of the decrease was much greater in Epac1TG. Our results suggest that Epac1 activation might induce an imbalance between force-generating capacity and ATPase activity in skinned myocardium. This could increase oxygen consumption and the energetic cost of contraction in living myocardium under conditions of chronic β-AR stimulation, leading to the development of heart failure.
An Innovative Method to Deal with the Spread of Aedes albopictus in the Urban Centers of Alessandria used by Citizen
Authors: Talbalaghi Asghar , Abbasi Ebrahim , Hassandoust Sahar
Published: September 2024

Studies have demonstrated that Aedes albopictus thrives in micro-breeding sites predominantly on private properties, including abandoned containers and manholes used for rainwater and irrigation. This study investigates an innovative methodology, the TombiniNet, to mitigate the proliferation of Aedes albopictus by engaging citizens in the active management of micro-breeding sites on their properties. Researchers conducted a comprehensive survey and analysis of Aedes albopictus micro-breeding sites on private and communal properties. The study identified that up to 70% of micro-breeding sites for Aedes albopictus in northern Alessandria were located on private properties. Citizen participation was critical to the success of the intervention, with a marked decrease in the number of adult tiger mosquitoes observed in areas where residents actively managed breeding sites using the TombiniNet. The TombiniNet was particularly effective in private areas, as residents could regularly maintain it, preventing debris accumulation that could hinder drainage. The findings highlight the importance of engaging citizens in mosquito control programs to manage Aedes albopictus populations in urban areas effectively. The TombiniNet intervention demonstrated that a simple, cost-effective solution could significantly reduce mosquito breeding sites on private properties.
Elementary School Teachers' and Counselors’ Decisions on Referring Students for Evaluation: The Impact of ADHD Traits, Achievement, and Giftedness
Authors: Tamsut Avital
Published: September 2024

The present study examined the effect of ADHD-related traits, academic-achievement level, and giftedness label on elementary school teachers’ and counselors’ referral recommendations for assessment. 532 teachers and counselors were presented with one of 12 vignettes describing a hypothetical pupil. Participants were asked to report the likelihood they would refer the pupil for ADHD diagnosis and address them during a high-level interdisciplinary school-team meeting (HISTM). High ADHD-related traits (effect size 0.359) and low academic-achievement (effect size 0.070) and their interaction were significantly related to higher likelihood of referral. Further analysis revealed that lower academic achievement was related to higher likelihood of referral only when ADHD-related traits were not indicated (p < .005). Status of giftedness label was not found to be significant (p > .05). These findings indicate that mainly ADHD-related traits and to a lesser degree low academic-achievement, influence teachers' decisions to refer pupils for ADHD diagnosis and address them in HISTM.
A bi-level optimization model and hybrid evolutionary algorithm for wind farm layout with different turbine types
Authors: Erping Song
Published: September 2024

In order to reduce the influence of wake effect between wind turbines under complex terrain in wind farm layout, it is feasible to adopt a deployment scheme of multiple types of wind turbines to maximize the benefits. In this paper, both the cost function and the output power of the wind farm are considered, where the cost functions include of different diameter, hub-height, and types of wind turbines. Therefore, a mode of bi-level constrained optimization is established, where decision variable at the upper-level is the deployment of wind turbine type, and decision variable at the lower-level is the deployment of wind turbine micro-location. Then, according to the characteristics of the decision variables, a hybrid algorithm based on genetic algorithm and differential evolution is proposed, and the above evolution operations and parameter values are improved to improve the performance of the algorithm. Finally, the feasibility of the proposed scheme is verified by extensive simulations.
High-Throughput Discovery of Ferrocene Mechanophores with Enhanced Reactivity and Network Toughening
Authors: Kulik Heather , Kevlishvili Ilia , Vakil Jafer , Kastner David , Huang Xiao , Craig Stephen
Published: September 2024

The concept of the mechanophore1 was only established in the past two decades, during which time their discovery and study have led to new insights and opportunities in fundamental chemical reactivity2, imaging3, drug delivery4, and molecularly guided material properties5,6. Despite many successes in mechanophore design, the plausible design space in the field still far exceeds what has been realized synthetically. For example, ferrocenes are particularly attractive targets as mechanophores due to their combination of high thermal stability and mechanochemical lability.7,8 However, the handful of demonstrated ferrocene mechanophores is sparse7–9 in comparison to several thousands of unique ferrocene complexes that have been synthesized. Herein, we report computational, machine learning guided discovery of synthesizable ferrocene mechanophores. We identify over one hundred potential target ferrocene mechanophores with wide-ranging mechanochemical activity and use data-driven computational screening to identify a select number of promising complexes. We highlight design principles to alter mechanochemical activation of ferrocenes, including regio-controlled transition state stabilization through sterically bulky groups and a change in mechanism through non-covalent ligand–ligand interactions. The computational screening is validated experimentally both at the polymer strand level through sonication experiments and at the network level by mechanical testing. These experiments indicate that a computationally discovered ferrocene mechanophore cross-linker leads to greater than 4-fold enhancement in material tearing energy. We expect the computational approach to serve as a blueprint for high-throughput discovery in other families of mechanophores by providing fundamental insights into mechanically coupled reactivity, supporting the elucidation of mechanophore-to-material structure–activity relationships, and leading to polymer networks with new combinations of desired material properties.
Influence of soil salinity on the structural attributes and aboveground biomass carbon in a mangrove community of Mallorquin swamp in Barranquilla, Colombia
Authors: Rodriguez-Reales Rodrigo Rafael , Gómez Juan Pablo , Bohórquez-Herrera Jimena , Martínez-Habibe María C.
Published: September 2024

Recent studies suggest that mangrove forests have an exceptional capacity of capturing and storing carbon. However, the relationship between this ecosystem service and environmental factors is less studied. Here, we evaluate how environmental conditions influence tree community composition and carbon storage in Mallorquin swamp, an urban mangrove ecosystem in Barranquilla, Colombia. We measured mangrove tree community composition, vegetation structure, soil pH and salinity in 18 circular plots located in areas with Low, Medium, and High salinity. Using published allometric equations and wood density database, we estimated total aboveground biomass. Our results show significant soil salinity differences among the sampling areas, especially during the dry season. Nonetheless, we found small differences in soil pH across stations regardless of the season. Avicennia germinans was mostly associated with Low salinity areas, Laguncularia racemosa with Medium salinity areas, and Rhizophora mangle in High salinity areas. Observed differences in tree height, abundance, and vertical structure were noteworthy, with the Low salinity area hosting significantly taller and bigger trees and a larger carbon stock. Carbon stock estimates were 4098.6 Mg C for Low, 104.6 Mg C for Medium, and 1761 Mg C for High salinity areas. These findings highlight the significance of local environmental factors in mangrove conservation efforts, particularly in urban areas like Barranquilla; contributing to our understanding of the relationship between mangrove ecosystems and carbon cycling; emphasizing the need for targeted conservation efforts to protect these vital coastal habitats.