bluuebunny/crossref_metadata_2025_split huggingface dataset:
Relationship Between Primary School Teachers’ COVID‐19 Fear Levels and COVID‐19 Vaccine Attitudes After the Start of Face‐to‐Face Education During the Pandemic Period: A School Health Study
Authors: Tayhan Ali , Işık Kübra 
Published: October 2024

ABSTRACTContextStarting face‐to‐face education while the COVID‐19 pandemic was ongoing was a risk for public health. Determining teachers’ initial reactions to public health practices during this high‐risk period may contribute to the redesign of public health and school nursing policies.ObjectiveThe aim of this research is to examine the relationship between primary school teachers’ COVID‐19 fear levels and COVID‐19 vaccine attitudes.DesignThe research has a descriptive correlational design. The data were obtained from teachers working in primary schools (n = 430). Simple random sampling method was used in the data collection process. Data were obtained with the Scale of Attitudes Towards COVID‐19 Vaccine and Fear of COVID‐19 Scale.ResultsIn the study, 50.5% of teachers reported that they were afraid of catching COVID‐19, 41.9% said their risk of catching COVID‐19 was “high,” and 87.7% reported that they voluntarily got the COVID‐19 vaccine. Of the teachers, 4.6% (n = 20) stated that they regretted getting vaccinated. A positive and significant relationship was found between teachers’ Fear of COVID‐19 Scale and COVID‐19 Vaccine Attitude Scale scores (r = 0.133, p < 0.001).ConclusionsDuring the pandemic, it was observed that teachers’ fear level of COVID‐19 increased with the start of face‐to‐face education. In addition, it is seen that teachers started to have doubts about some public health practices. This may indicate that public health nurses should take a more active role in school health practices.
Research Trends and Hot Topics of Nursing Studies on Hypertension: A Retrospective Bibliometric Analysis From 1979 to 2024
Authors: Dağistan Akgöz Ayşe , Kaya Ayla 
Published: October 2024

ABSTRACTObjectiveThis study aimed to evaluate research trends and hot topics in the 45‐year history of nursing studies on hypertension (1979–2024).MethodsThis retrospective bibliometric analysis study was conducted with 2678 data obtained from the WoSCC database on April 1, 2024. Data analysis and graphical presentation were presented using the Bibliometrix Package in R software, VOSviewer, and WoSCC.ResultsThe study revealed that nursing studies on hypertension were growing rapidly in the scientific world. The most productive journal in the field was the Journal of Clinical Nursing, while the most productive and collaborative country was the United States. “Frailty,” “COVID‐19,” “complications,” “Meta‐analysis,” “vital signs,” “systematic review”, “self‐care,” and “chronic disease” were determined as hot topics. “COVID‐19” and “mhealth” were global trends. Additionally, the issues of “anxiety, pair, vital signs” and “elderly, nursing home, mortality” needed to be addressed more by nurses.ConclusionsNursing studies on hypertension have increased to date. This area is likely to continue to be an active area of study for nursing researchers in the coming years. Focusing on the topics “anxiety, pair, vital signs” and “elderly, nursing home, mortality” will contribute to filling the gap in the field.
Sensitivity of Rhizoctonia solani to fertilizers and fungicides and their synergistic effects
Authors: Maaoui Meriem , Tarhouni Belhassen , Djébali Naceur 
Published: October 2024

AbstractRhizoctonia solani reduces yield and quality of potato worldwide and some studies report the appearance of resistant strains due to the extensive use of fungicides. To overcome this problem, we studied the effect of commercial fertilizers alone and in combination with fungicides on the in‐vitro growth of R. solani in order to manage the use of fungicides and reduce the risk of resistance development in this pathogen. First, the study of the effect of three fungicides, azoxystrobin, pencycuron and fludioxonil, on the in‐vitro growth of R. solani showed that fludioxonil (EC50 = 0.06 × 10−3 μg a.i./mL) and pencycuron (EC50 = 0.1 × 10−3 μg a.i./mL) were very effective in inhibiting the growth of this pathogen at very low concentrations; however, azoxystrobin showed less antifungal activity (EC50 = 74.85 × 10−3 μg a.i./mL). The effect of five commercial fertilizers, namely di‐ammonium phosphate, superphosphate, phosphoric acid, potassium sulphate and ammonium nitrate, at different concentrations (0, 0.01, 0.1, 1 and 10 mg of fertilizer element [P2O5, K2O or N]/mL) showed that all fertilizers reduced the in‐vitro growth of R. solani. Furthermore, the studied fertilizers, particularly phosphorus‐based ones, improved the antifungal activity of the three fungicides. For instance, superphosphate at 0.1 mg of P2O5/mL in combination with pencycuron reduced the diameter of the fungal colony by 76.7% in comparison to the fungicide alone. In addition, the antifungal activity of azoxystrobin was improved by the NPK fertilizers, indicating their effect in reducing the risk of resistance development in R. solani to this fungicide. This study demonstrates the usefulness of fertilizers in an integrated management programme to enhance fungicide efficacy against R. solani, reducing the risk of resistance development in this pathogen.
Saving the Wild or Saving the Cowboy? Cultural Conflict between the Old and Nouveau West*
Authors: Canfield John 
Published: October 2024

AbstractIn North Central Montana, a land‐based conflict centered on the environmental organization American Prairie sparked the formation of the “Save the Cowboy, Stop the American Prairie Reserve” Facebook page, attracting posts and comments from ranchers and members of the area's agriculture‐dependent communities. Despite Montana's rapid amenity migration and rural gentrification, this region has largely maintained its Old West culture. Consequently, Save the Cowboy members often express frustration about how American Prairie's large‐scale rewilding initiative and land acquisitions affect the region's rural communities. In this qualitative content analysis, concerns about preserving the Old West culture and avoiding the New West transformation dominated Save the Cowboy's Facebook posts and comments (N = 1,002), even compared to the ostensibly more concerning economic and ecological issues. By describing a social space marked by cultural antagonisms between Old West insiders and New West outsiders, this study points to the dangers of essentializing Old West‐New West conflicts. Illustrating how Old West insiders deploy their cultural capital to contest rural change, it also expands the Old West‐New West typology by proposing the term “Nouveau West” to capture how Old West insiders assert dominance by disparaging newcomers who lack the requisite knowledge of how things are done locally.
How do export credit services shape firm growth?
Authors: Hur Jung , Yoon Haeyeon 
Published: October 2024

AbstractThis paper examines the impacts of public export credit services on firms. Distinguishing itself from previous research, this study (i) analyses both export insurance and loan services from export credit agencies, and (ii) investigates heterogeneous effects based on service types and firm characteristics. Recognising that the effects can vary across groups and times, this study (iii) also employs research designs that accommodate heterogeneous and dynamic effects. Overlooking these factors in models with multiple periods and varied treatment timings can lead to biased results. Using novel data and the latest econometric methodologies, this paper finds that public export credit services significantly enhance the exports and employment of firms. While both export loan and insurance boost export activities, only export loan positively impacts employment growth. Additionally, financially constrained firms experience greater benefits from the export credit services compared with others. These findings offer valuable insights for developing policy allocation models, especially in emerging economies with less developed financial systems and greater needs for the efficient allocation of limited public resources to maximise impacts.
Staphylococcus felisC4 exhibits in vitro antimicrobial activity against methicillin‐resistant Staphylococcus pseudintermedius in a novel canine skin explant model
Authors: Faccin Mayane , O'Neill Alan M. , Lawhon Sara D. , Worthing Kate A. , Wiener Dominique J. , Gallo Richard L. , Hoffmann Aline Rodrigues 
Published: October 2024

AbstractBackgroundCanine superficial pyoderma is a common bacterial skin infection of dogs, generally caused by Staphylococcus pseudintermedius. The C4 strain of Staphylococcus felis was recently discovered to have strong antimicrobial activity against S. pseudintermedius in mice.ObjectivesWe aimed to evaluate in vitro if this antimicrobial activity was maintained using a novel canine skin explant model.Materials and MethodsPunch biopsies (8 mm) of skin from recently euthanised dogs were collected and placed into six‐well plates on top of an agarose pedestal.ResultsHistological examination of the skin explants showed an intact dermal–epidermal organisation and a stratum corneum that was successfully colonised by S. pseudintermedius after topical application. The number of colony forming units of S. pseudintermedius showed a 2 log increase after 24 h colonisation, indicating that the explant supported bacterial growth. By contrast, co‐treatment with S. felis C4 live bacteria and its sterile protein product significantly reduced the growth of a methicillin‐susceptible (ST540, p = 0.0357) and a methicillin‐resistant (MR) strain (ST71, p = 0.0143) of S. pseudintermedius. No detectable bacteria were recovered from or visualised on skin 24 h posttreatment with the S. felis C4 sterile protein product.Conclusions and Clinical RelevanceUsing a novel canine explant model, we demonstrate that the S. felis C4 strain inhibits the growth of S. pseudintermedius and that it is a promising candidate for a new probiotic therapy to treat cutaneous infections caused by S. pseudintermedius, including MR strains.
A proof of gross' conjecture on 2‐automorphic 2‐groups
Authors: Li Cai Heng , Zhu Yan Zhou 
Published: October 2024

AbstractBuilding upon previous results, a classification is given of finite ‐groups whose elements of order are all fused. This particularly confirms a conjecture of Gross proposed in 1976 on 2‐automorphic 2‐groups, which are 2‐groups with involutions forming a single fusion class. As a consequence, two open problems regarding AT‐groups and FIF‐groups are solved.
Dynamic of an Axial Piston Pump With Floating Pistons
Authors: Liu Baoyu , Ma Lifeng , An Gaocheng , Li Lankang , Guo Jiaqi , Wang Wenwei 
Published: October 2024

Abstract
A new structure of the axial piston pump was proposed to address the limitation of its application under low viscosity medium conditions due to the insufficient oil film bearing capacity. The piston of this structure is in a floating state in the axial direction, and both ends of the piston are supported by a discrete cylinder in the shape of a spherical joint. Because of the adaptive ability of the spherical joint in the orientation, the lateral force borne by the piston during operation has been decreased. And through a pair of bevel gears, the relative distance between the spherical joints at both ends of the piston varies with the rotation of the shaft, thereby enabling the pump to achieve a change in the cylinder volume. To demonstrate the superiority of the structure, firstly a mathematical model for dynamic analysis was constructed based on its working principle. Then, a kinematic analysis was conducted on a developed product, and co-simulated with AMESim to obtain the output flow pulsation. Subsequently, the dynamic characteristics of the piston were calculated. Finally, the simulation data was compared with that of a traditional swash plate axial piston pump of the same specifications. The results showed that the flow quality of AFPP will not be lower than that of the traditional pump with same displacement. And the piston lateral force can be changed from pressure dependent force to pressure independent force, so the piston lateral force of AFPP is smaller than that of traditional piston pumps at high-pressure condition, so the friction force and the wear between the cylinder and the piston can be significantly reduced. Therefore, this this type of structure can reduce the demand for oil film bearing capacity and have the ability to adapt to low viscosity media and low-speed working conditions.
Design and Simulation of a Drivetrain Integrated Pulsation Compensator for Pumps
Authors: Mikota Gudrun 
Published: October 2024

Abstract
A rotary mechanical pulsation compensator is developed from the well-known Helmholtz resonator. It consists of the pump rotor, a torsionally compliant coupling, and the remaining drivetrain. Deformation and strength requirements on the coupling are formulated for a beam concept and applied in combination with a radial piston pump. Future applications with constant rotational speed of the driving motor are discussed and the issue of multiple pump pulsation harmonics is addressed. A coupled hydraulic-mechanical model is set up for the pump drivetrain and the attached hydraulic system. In the frequency domain, parameter studies are carried out with respect to variable displacement. To account for hydraulic system resonances in different system configurations, outlet pipeline length and cylinder capacity are also varied. In the time domain, startup is simulated with an explicit estimate of geometric pump flow rate pulsation. It is investigated if pressure measurements during a slow startup procedure can prove the compensator effect by approaching stationary conditions.
Comparative Study on Asymmetric and Symmetric Configurations of Valve Plates in Axial Piston Pumps
Authors: Lu Yijie , Fang Hua , Yang Bo , Jiang Haoyi , Ling Zhenfei , Liu Hao , Ouyang Xiaoping , Yang Huayong 
Published: October 2024

Abstract
Using asymmetric cylinders to replace symmetric cylinders effectively reduces the volume and weight of electro-hydrostatic actuators (EHAs). However, asymmetric cylinders have the flow mismatch between the rod and rodless chambers. Researchers proposed using the three-port asymmetric valve plate (AVP) to solve the flow mismatch problem without increasing the weight and volume of the EHA. However, compared with the traditional symmetric valve plate (SVP), the impact of the AVP on the performance of the axial piston pump has yet to be studied. This paper establishes a mixed lubrication model of the cylinder block/valve plate interface considering asperity contact, and compares the oil film characteristics of AVP and SVP. It is found that the cylinder block overturning behavior caused by the AVP is more prominent than that of the SVP. At the same time, by establishing a lumped parameter model of the axial piston pump, the flow characteristics of AVP and SVP under different operating conditions are compared, revealing the impact of AVP on the flow ripple of the axial piston pump. The results of this work can be utilized to optimize the cylinder block anti-overturning behavior and outlet ripple suppression of the axial piston pump, as well as to improve the control performance of the EHA.
Investigating External Gear Pump Efficiency at Very Low Speeds With Graphene Nanofluids
Authors: Chiavola Ornella , Palmieri Fulvio , Verdoliva Francesco , Liscio Andrea , Ligi Simone 
Published: October 2024

Abstract
Experimental investigations are performed to assess the operational efficiency of external gear pumps under high-pressure conditions, with a specific focus on varying shaft rotation speeds. These analyses encompass a broad range of rotational velocities, spanning from conventional to remarkably low speeds, reaching a minimum threshold of 150 RPM. At such reduced speeds, both volumetric and torque losses rise significantly, posing notable challenges to pump performance. Additionally, the lubrication conditions at such modest velocities are often compromised, further constraining the operational range of gear pumps, and limiting the efficiency of pump-controlled systems reliant on speed modulation.
The primary objective of the current investigations is to assess the potential effectiveness of nanofluids in enhancing pump performance, particularly under the demanding operational conditions delineated above. This entails scenarios where pump loads are very high, and operational speeds are diminished to reach markedly off-design operating conditions. Consequently, the study presents a comparative analysis of external gear pumps operating with a commercial fluid that is integrated with graphene nanoparticles. Performance metrics, in terms of volumetric and hydro-mechanical efficiency, are evaluated to assess the impact of the nanofluid on overall pump energy performance.
The findings of this study provide a first insight into the influence of nanofluids on gear pump efficiency and offer data for pump modeling at low speed. Such analyses hold relevance when control of gear pumps through variable speed logic is needed, as they provide an understanding of the potential benefits and limitations associated with the adoption of nanofluid-enhanced pump systems.
Transmission Line Models for Fluid Power Hoses Identified From Measurement Data
Authors: Manhartsgruber Bernhard 
Published: October 2024

Abstract
Modeling and simulation have become essential tools in fluid power engineering. On the overall system simulation level, most components are described by a concentrated parameter approach resulting in a system of ordinary differential equations. The exception to this rule is found in pipelines and hoses, where wave propagation may be of importance and hence a distributed parameter approach results in some sort of spatial discretization in the modeling process. For long bores in hydraulic valve manifolds and also for rigidly supported steel pipes, the dynamic behaviour can be predicted very well with standard models available from literature like the classical frequency dependent friciton model of D’Souza and Oldenburger. With wire or fibre reinforced high pressure rubber hoses, this is no longer true and the transfer behaviour of such transmission lines can only be characterized based on measurement data. The present paper presents a novel approach towards the construction of low order models for the approximation of the measured input-output behaviour of fluid power hose lines. The method is based on the measurement of the linearized system dynamics at a number of pressure levels and is intended towards the local linear model tree (LOLIMOT) technique after identifying reduced order models for each pressure level. The results are applicable to fluid power system simulations where the dynamics of hose lines becomes important due to high operating frequencies or when noise attenuation in the hose lines is the primary focus of the simulation. The measurements provided in the paper are for a fluid power hose with a diameter of 20 mm and a length of 3 m.
Important ultrasonography and CT findings and prognostic factors of incidentally detected gallbladder cancer
Authors: An Jihae , Kim Jung Hoon , Kim Hee Soo , Choi Jin Sol 
Published: October 2024

Aims: To evaluate important imaging findings and prognostic factors of incidentally detected gallbladder cancer (IDGC). Materials and methods: Patients with surgically proven IDGC (n=85) and benign GB diseases (n=100) were retrospectively enrolled. All patients had preoperative CT and eighty-two patients had US images. Two radiologists independently assessed image findings and analyzed findings suggestive of IDGC and recurrence after surgery. Univariate and multivariate analyses were performed to identify significant predictors for IDGC and recurrence.Results: 87% (74/85) of IDGC belonged to early cancer. On US, mucosal irregularity (odds ratio (OR), 26.29; 95% confidence interval (CI), 2.66-259.42; p=0.005) was a significant predictor of IDGC. Enhancement pattern of wall (OR, 7.78; 95% CI, 2.84-21.39; p<0.001), and maximum wall thickness (OR, 1.31; 95% CI, 1.11-1.55; p=0.002) were significant predictors of IDGC on CT. Twenty-two patients showed recurrence. For clinical factors, T-, N-stage were associated with recurrence (p<0.001). For imaging, focal wall thickening (OR, 8.74; 95% CI, 1.13-67.49, p=0.038) on US and lymph node enlargement (LNE) (OR, 8.93; 95% CI, 1.44-55.19, p=0.018) on CT were significant predictors of recurrence.Conclusion: Image findings are useful to predict IDGC using mucosal disruption, maximum wall thickness, enhancement pattern of wall. In addition, focal wall thickening and LNE were useful for predicting recurrence.
Digital Image Correlation Analysis of Fatigue Degradation of Layered Polymer Composites (Polyetheretherketone/Polyetherimide, PEEK/PEI) with Carbon-Fiber Fabric Prepreg
Authors: Panin S. V. , Bogdanov A. A. , Aleksenko V. O. , Bochkareva S. A. , Lyubutin P. S. , Panov I. L. , Tian D. 
Published: October 2024

Abstract
In this work, the relationship was considered between the structure and cyclic loading resistance of a layered composite consisting of PEI (PEEK) plate/PEI (PEEK) film/PEI-impregnated carbon-fiber fabric prepreg/PEI (PEEK) film/PEI (PEEK) plate by analyzing the time variation in the parameters of mechanical hysteresis loops calculated using digital image correlation. It was shown that the polyetherimide-based layered composite has low fatigue life under cyclic loading (0.8 of the yield strength), resulting from incompatible deformation between the PEI plates and the prepreg due to a layer interface formed by low-melting TecaPEI film. In the PEEK layered composite, the layer interface was formed by neat PEEK energy director and therefore had a little amount of defects, due to which the load was well transferred from the PEEK plates to the middle reinforcement layer. As a result, the fatigue life at a load level of 0.8 of the yield strength corresponded to high-cycle fatigue (more than 86000 cycles).
A Multiple Case Study Exploring Person‐Centred Care in Care Homes
Authors: Hodge Gary , Byng Richard , Page Georgia , Lang Iain , Pearce Susie 
Published: October 2024

Background: There are 14,228 care homes in England with a population of approximately 372,035 residents, many of whom are living with frailty or multiple and complex comorbidities. Policy and international literature advocate that care homes provide high‐quality person‐centred care that meets each person’s specific needs. This study aims to provide an exploration of person‐centred care in care homes in the South West of England from the perspective of all those involved.Methods: A qualitative multiple case study design was used across seven care homes in a region of South West England. Semistructured interviews were conducted with 61 participants (residents, family and health and care professionals). Nonparticipant observations were undertaken in communal areas to understand the practices and cultures of the care homes. All data were analysed using reflexive thematic analysis.Findings: The findings are presented as six themes, they are adjusting to the transition into a care home; people at the centre of care; the place we call home with the people we call family; working across the boundaries of care; supporting, valuing and empowering care home teams; and managing complex and challenging moments of care.Conclusion: This study demonstrates a whole system understanding of person‐centred care across seven care homes. The main components of person‐centred care appear to be relational. These relationships take place in cultures and systems that are complex and challenging with care boundaries that need to be navigated. Navigating these care boundaries requires a people‐centred care approach built on partnerships and mutual respect.