bluuebunny/crossref_metadata_2025_split huggingface dataset:
Maternity Care Practices Supportive of Breastfeeding in U.S. Advanced Neonatal Care Units, United States, 2022
Authors: Anstey Erica , Noiman Adi , Boundy Ellen , Nelson Jennifer 
Published: May 2024

Abstract

Objective: To describe breastfeeding-supportive practices in U.S. maternity hospitals with advanced neonatal care units (ANCU).
Study Design: Using 2022 mPINC data, we calculated the percent of hospitals reporting 1) breastfeeding-supportive practices for “most” (≥80%) mother-baby dyads in ANCUs, by hospital demographic characteristics and 2) infant receipt of mother’s own milk or donor milk at any time while in the ANCU, by ANCU level.
Results: More than 90% of hospitals reported that “most” mothers (≥80%) were advised on some breastfeeding-supportive practices. Fewer hospitals reported that “most” mothers expressed milk within one hour of birth (37%) or that kangaroo care was practiced for “most” eligible newborns (63%). Receipt of mother’s own milk varied by unit level and state.
Conclusion: Breastfeeding-supportive practices requiring the technical competency of healthcare providers (e.g., early milk expression, kangaroo care) are less likely to be implemented in ANCU settings compared to practices centered around providing advice or education.
End to End Energy Efficient IoUT Architecture: SimulationStudy of Underwater Routing Protocols and LoRa
Authors: Ganguli Souvagya , Agarwalla Nilesh , Anand Sumit , Thyagarajan Jayavignesh 
Published: May 2024

Abstract

In the world of computer networks, underwater areas are a special setting that brings difficulties because of things like sound speed changing, node moving around, and limited node life. Since aerial networks are getting more crowded and overused, the study of underwater networks has become important. This thesis looks at the problems and possibilities in underwater networks, especially for packet routing within the network layer. We aim to assess and contrast different routing protocols that NS2 supports, looking at main performance metrics like end-to-end delay, energy consumption, and packet delivery ratio (PDR). By concentrating on these measurements we wish to highlight the pros and cons of different routing protocols for underwater networks. Along with that, we are also proposing an energy-efficient end-to-end IoUT architecture that explains how a small payload of data gets transmitted from underwater sensor nodes to the LoRa gateway. This would help in progressing technology related to underwater network systems.
Wall-to-Lumen Ratio Estimation from Excised Ascending Aortic Aneurysm Rings
Authors: Parikh Shaiv , Timmermans Finn , Boxtel Juul van , Ganizada Berta , Saraber Pepijn J.M.H. , Huberts Wouter , Delhaas Tammo , Bidar Elham , Reesink Koen 
Published: May 2024

Abstract

Mechanical equilibrium and homeostasis of the vessel wall are dependent on its wall-to-lumen ratio. Ex vivo studies performing wall thickness measurements do not perform measurements on intact rings. Therefore, they lack ex vivo lumen radius, which is necessary to determine the wall-to-lumen ratio. Therefore, in this study we propose an ex vivo wall-to-lumen ratio measurement technique. Our measurements were performed on excised ascending aortic aneurysm rings. We assessed the reliability of our measurement technique through Gage Repeatability and Reproducibility (GRR) analysis, considering both inter- and intra-observer variations. For the samples collected from patient group undergoing ascending aortic repair surgery, our estimates indicate a wall-to-lumen ratio on the order of 0.2, with a GRR coefficient of variation of less than 10%.
Effect of obesity and endocrine therapy on the prognosis of premenopausal women with HR+HER2-breast cancer: a multi-center retrospective study
Authors: Lian Weibin , Hong Chengye , Wang Chuan , Chen Debo 
Published: May 2024

Abstract

The effects of obesity on breast cancer prognosis may be subtype-dependent. However, research on premenopausal women with HR + HER2- subtype is insufficient. We included premenopausal women with HR + HER2- early breast cancer who received radical surgery in 42 breast centers nationwide from 2016 to 2021. Patients were classified into four groups according to body mass index (BMI): underweight (UW), normal weight (NW), overweight (OW), obesity (OB). Kaplan-Meier curve was used to compare disease-free survival (DFS) between different BMI groups. Multivariate cox regression analysis was used to identify the effect of obesity on prognosis. Total 5094 patients were included in the analysis. DFS in OB patients was significantly worse than that in patients with NW (p = 0.002). After adjusted for age, tumor size, lymph node involvement, Ki67 index, PR, chemotherapy, radiation therapy and OFS, obesity remains an independent prognostic factor for DFS in premenopausal patients with HR + HER2- breast cancer (p = 0.043). In OW/OB patients who only received selective estrogen receptor modulators (SERMs), DFS was significantly worse than that in UW/NW patients (p = 0.0067). However, OW/OB does not affect DFS in patients who received ovarian function suppression (OFS) (p = 0.865). Furthermore, analysis from Restricted Cubic Splines (RCS) showed that the risk of recurrence continues to increase with increasing BMI in overweight and obese patients. Our study confirmed that obesity stands as an independent prognostic factor for DFS in premenopausal patients with HR + HER2- breast cancer. OFS may reverse the prognosis of premenopausal women with HR + HER2- breast cancer who only receiving SERMs.
Dual Active Bridge Converter for Bidirectional Power Control and minimization of Ripples in Inverter Stage
Authors: Kanase Digvijay B , Patil Vishal B , Jadhav Sachin P , Patil Swapnil D , Mali Prashant S , Prasad Shashikant 
Published: May 2024

Abstract

Solid-State Transformers (SSTs) play a crucial role in enhancing the performance of dual active bridge converters and ensuring robust isolation. These converters are renowned for their exceptional capability to efficiently handle high power levels. The H Bridge maintains a consistent 50% duty cycle to ensure operational control. The rectifying and inverter components within the SST DAB converter are interconnected in a multi-stage arrangement. Variations in output power result from the converter's direct current (DC) input and output voltages and the inverter's alternating current (AC) output. This type of converter exhibits noticeable second-order harmonics. The main goals of the control for the DAB converter are to maintain stability in both the power and the DC output voltage. Additionally, it aims to minimize disturbances originating from the inverter section as a secondary goal. The proportional-integral (PI) controller, and the proportional-integral (PI) controller in conjunction with a resonant controller are the two controller types examined in this work. Because of the DAB converter's low switching frequency, the typical PI controller only amplifies a limited amount at 120 Hz, which causes amplified voltage ripples at the inverter's output. One method to minimize these ripples is by enhancing the PI controller's Kp value, however doing so may cause the feedback loop to become unstable. It's important to note that a standalone The PI controller can effectively regulate the DC voltage. but it cannot entirely eliminate ripples. Alternative approaches such as resonant controllers can be employed to address this limitation. This technique may efficiently manage the output voltage and lessen ripples.
Quantification of 730 mycotoxins and other secondary metabolites of fungi and plants in grain products
Authors: Sulyok Michael , Suman Michele , Krska Rudolf 
Published: May 2024

Abstract

This work reports on the validation of a liquid chromatography – tandem mass spectrometric method for the simultaneous quantification of more than 700 mycotoxins and other secondary fungal metabolites and plant toxins in pasta, biscuits, crackers and musli. The “dilute and shoot” approach was found to be fully applicable to these complex matrices, as only 7 -14% of the analytes exhibited significant matrix effects while recoveries of the extraction were outside the target range of 70 – 120% for only 26 compounds. Data on repeatability (based on 7 brands per matrix) and on intermediate precision was compliant to the related < 20% criterion for 95-98% and 99 % of all analytes, respectively. The limits of quantification were much lower than the related regulatory limits set for mycotoxins in cereal products. Application of the method to 147 samples from the European market revealed the presence of enniatins and deoxynivalenol in the majority of the samples. No regulatory limits were exceeded except the sum of ergot alkaloids being higher in a few samples than the 50 – 150 µg/kg to be implemented as of July 2024.
A formative assessment system in Baduanjin physical education based on inertial measurement unit motion capture
Authors: Zhao Shanguang , Shen Yanqing , Zhou Ke , Li Hai 
Published: May 2024

Abstract

This research aims to use the commercial inertial measurement unit (IMU) motion capture (MoCap) to build a formative assessment system in Baduanjin physical education (PE) to assist PE teachers in completing the formative assessment. The system recognizes motions and assesses motion accuracy by analyzing the motion data captured from students with IMU MoCap. The Baduanjin motions dataset was obtained by recruiting students and teachers to verify the feasibility of the commercial IMU MoCap in recognizing motion accuracy. Furthermore, based on the dataset, suitable methods for recognizing motions and assessing the motion accuracy of Baduanjin were developed and verified. The formative assessment system in Baduanijn PE was built on selected methods and for objective users test. The system obtained excellent accuracy in recognizing student motions (99.77%), and there is a solid connection (over 0.8) between the system and the teacher for assessing motion accuracy. The objective user test demonstrates that the formative assessment system built on IMU MoCap is appropriate for the Baduanjin PE.
Characteristics, predictive factors, and prognostic impact of effusion in multiple body cavities after allogeneic hematopoietic stem cell transplantation
Authors: Kurokawa Mineo , Masuda Yasutaka , Honda Akira , Oyama Takashi , Masamoto Yosuke 
Published: May 2024

Abstract

Fluid retention presenting as effusions in body cavities in sometimes encountered following allogeneic stem cell transplantation (allo-HSCT), however, its spaciotemporal characteristics, predictive factors, and prognostic impact is poorly defined. Here, we comprehensively reviewed pleural (PL), peritoneal (PT), and pericardial (PC) effusions in 178 first allo-HSCT recipients retrospectively. A total of 123 (69.1%) patients developed effusions in either cavity: the PL, PT, and PC effusions were found in 106, 88, and 53 patients for the first time after allo-HSCT with a median of 38.0 (range, 2–2950), 22.5 (range, 2–1324), and 40 (range, 2–945) days. The cumulative incidence at day 100 was 41.0%, 40.4%, and 20.8%, respectively. Out of 92 patients presenting with effusions within day 100, 28 patients presented with effusion in a single cavity, 39 in two cavities, and 25 in all of three cavities. Higher disease risk index was identified as predictive factors for cavity effusion. The 2-year overall survival rate of patients with effusions at no, single, double, and triple cavities within day 100 were 86.1%, 60.0%, 59.6%, and 18.8%, respectively. Our results indicate that rigorous pre- and peri-transplantation management to avoid fluid retention is important to improve transplantation outcomes.
Autonomous Mobile Vehicle Using ROS2 and 2D-Lidar and SLAM Navigation
Authors: Gyanani Pratham , Agarwal Mridul , Osari Ranjeet , Chandore Garima 
Published: May 2024

Abstract

This study describes the use of the SLAM algorithm in autonomous mobile vehicle/robot navigation. The proposed work is organized inside the Robot Operating System (ROS2) architecture. Data visualization is done with Rviz, and vehicle simulation is done with Gazebo. SLAM Toolbox uses laser and odometry data from several sensors for mapping. We have built a small bot which uses Differential Drive Control System. It also uses the Nav2 plugin of ROS2 for navigation from one place to another in the environment by first giving the initial co-ordinates of the robot and then the Goal pose where the robot has to reach. It also implements online asynchronous plugin of ros2 which helps the robot to detect real time change in the map during the navigation so it will change its path if a new object is detected real time
Systemic Stakeholder Analysis - Background on the methodology and its application within the Bio-Mo-D project
Authors: Neumann Kai , Sievi Marguerite 
Published: May 2024

Abstract

A multitude of stakeholders, encompassing various sectors, are involved in the modernization of ecosystem-related reporting in Germany at both corporate and national levels. The Bio-Mo-D project aims to identify pathways towards these objectives and recognize key stakeholders and their roles. Employing an explorative stakeholder model aids in comprehending the factors facilitating and hindering each objective, as well as the interconnections between them and the roles played by numerous stakeholders. A refined descriptive model further illustrates generic dynamics, facilitating the identification of major stakeholders along impact chains. This enhanced understanding of processes, triggers, and dynamics enables the Bio-Mo-D project to identify e.g. potential advocacy coalitions, underscoring the significance of pilot applications in catalyzing the dynamics of reinforcing feedback loops in the mainstreaming process and the need for feasible science-policy-interfaces.
Insights into the role of children in the COVID-19
pandemic in Belgium: a longitudinal sensitivity
analysis
Authors: Angeli Leonardo , Caetano Constantino , Franco Nicolas , Coletti Pietro , Faes Christel , Molenberghs Geert , Beutels Philippe , Abrams Steven , Willem Lander , Hens Niel 
Published: May 2024

Abstract

Understanding the evolving role of different age groups in virus transmission dynamics is essential for informed pandemic
management. This study delves into the age-related transmission patterns of SARS-CoV-2 in Belgium from November
2020 to February 2022. We employed a next-generation matrix approach, integrating longitudinal social contact data and
numerical simulations of the evolving population susceptibility. A perturbation analysis of the effective reproduction number
(Rt ) underscored the age-specific transmission patterns. From November to December 2020, adults aged [18,60) were main
contributors to Rt (≈ 78%), with children aged [0,12) having a marginal role (≈ 3.7%). This pattern shifted between January and
March 2021, coinciding with in-person education resumption and the Alpha variant emergence; children’s contribution to Rt
increased to ≈ 38%. Stringent measures in March 2021 significantly reduced transmission levels, substantially downsizing
the role of the [18,30) age group. Following the summer school break, in September-October 2021, we observed a notable
resurgence in children’s contribution to Rt . Our findings highlight the noteworthy and varying influence of the [0,12) age
group on SARS-CoV-2 transmission, offering insights to design nuanced pandemic responses, e.g., that balance public health
needs with socio-educational implications of interventions like extended school closures. Overall, this study demonstrates the
effectiveness of our methodology in uncovering age-specific transmission patterns in the study of infectious disease spread.
Optimizing the mode switching quality of hybrid tractors equipped with mechanical-hydraulic compound transmission devices
Authors: Zhu Zhen , Sheng Jie , Zhang Hongwei , Wang Dehai , Chen Long 
Published: May 2024

Abstract

During the mode switching process of a hybrid tractor equipped with a mechanical-hydraulic compound transmission (HMCVT) device, the separation and combination of the clutch will cause transient shocks, affecting the smoothness and driving comfort of the entire vehicle. This article establishes a system dynamics model in SimulationX simulation software and builds a hardware-in-the-loop (HIL) test platform for testing to study the simulation and testing when switching from pure electric drive mode to hybrid speed coupling mode. In order to solve the problem of slow dynamic response of the engine, this study proposes a control strategy of "clutch oil pressure fuzzy control + motor torque compensation” and uses the orthogonal test range analysis method and variance analysis method to optimize the vehicle mode switching quality. Taking the switching timing of the six clutches C0, C2, C3, C4, C6 and C7 involved in this article as the factors A, B, C, D, E and F of the orthogonal test range analysis, the clutch switches 0.5s ahead of time. On-time switching and delayed switching of 0.5s are used as three levels. L27(36) orthogonal table is selected for simulation test. Range method analysis shows that scheme A3B1C3D3E1F2 is the optimal switching scheme, that is, clutches C2 and C6 switch 0.5s in advance, and clutch C7 is on time. Switching, clutches C0, C3 and C4 are switched with a delay of 0.5s, the output shaft speed drop is reduced from 21.875% to 1.63%, the dynamic load coefficient is reduced from 8.473 to 2.72, and the impact degree is reduced from 26.181m/s3 to 7.08m/ s3, the switching time is reduced from 1.345s to 0.35s. A hardware-in-the-loop test platform was built for testing. The hardware-in-the-loop (HIL) test results were consistent with the overall trend of the simulation results, verifying the effectiveness of the proposed control strategy and method.
Strong Fuzzy Detour µ-Centre in Fuzzy Graphs
Authors: J Umamaheshwari , K Dillibabu , P Vishnukumar , A Anbarasan 
Published: May 2024

Abstract

Fuzzy graphs are defined as graphs with fuzzy edges and vertices. The fuzzy values are represented by membership functions, which assign a degree of membership to each element. We proposed a new technique for fuzzy detour by applying strong arc concepts, which leads to strong fuzzy detour µ-centre, strong fuzzy detour µ-diameter, and strong fuzzy detour µ-radius. Additionally, we proposed some related properties and theorems based on these concepts. We showed that it is metric and showed some analog properties, like the relationship between the eccentricity of two nodes and the relationship between the radius and diameter of a strong fuzzy detour. We have presented the result of finding the eccentricity by utilizing the matrix's max-max composition. We discussed some analog properties of matrices and we discussed the formula to find the radius of Cn, n > 3, with specific conditions and also proved that the radius of Cn is strictly increasing and G is self-centered. Also, we proved that α, β strong fuzzy µ-distance is metric and also showed that the alpha strong arcs and beta strong arcs number is always equal to the number of arcs in G. We discussed some problems and theorems based on these concepts.
Effect of thickness ratio on mechanical properties and tribological behavior of TiB2/Cr multilayer coatings
Authors: Wu Bi , Gao Siyang , Xue Weihai , Yang Shuai , Li Shu , Duan Deli 
Published: May 2024

Abstract

The design of TiB2-based coating with Cr interlayer can offer an efficient way to improve its mechanical properties and tribological performance. The stress distribution of the TiB2/Cr multilayer coatings was optimized by varying the ceramic-metal thickness ratio (Q). As Q decreased from 1.0 to 0.5, the hardness of the deposited TiB2/Cr multilayer coatings drop from 30.3 GPa to 20.2 GPa. However, their fracture toughness and adhesion strength are promoted. The multilayer coating with Q = 0.5 exhibited the best toughness, crack propagation resistance (CPRs), and the smallest equivalent stress area, resulting in the best wear resistance. The wear mechanism of the TiB2 interlayer is primarily abrasive, while that of the Cr interlayer is adhesive. However, reducing Q further to 0.3 led to decreased wear resistance due to low hardness and significant stress concentration. This indicates that there is an optimal balance between hardness, toughness, and stress distribution for achieving improved wear resistance for the multilayer design. Additionally, a notable correlation was found between CPRs and the wear resistance of TiB2/Cr multilayer coatings. CPRs could serve as a reliable predictor for the tribological performance of the ceramic coatings.
Crystallization experiments of the wheel-and-axle host compound, 1,4-phenylene-bis(di-p-tolylmethanol), from pyridine and methylpyridine mixtures
Authors: Barton Benita , Vorgers Jarryd A. , Hosten Eric C. 
Published: May 2024

Abstract

1,4Phenylene-bis(diptolylmethanol) (H), a host compound with the wheel-and-axle design, formed complexes with organic guest solvents pyridine (PYR) and 2-, 3- and 4-methylpyridine (2MP, 3MP and 4MP). The host:guest (H:G) ratios were 1:3, 1:2, 1:2 and 1:1, respectively. Host crystallization experiments from mixed guests demonstrated H to prefer both PYR and 4MP; however, it was established that these difficult-to-separate (by fractional distillations) guest mixtures cannot be purified/separated by means of H through supramolecular chemistry strategies owing to these selectivities for PYR and 4MP being less than optimal. Single crystal X-ray diffraction experiments showed that each guest compound was held in its complex by means of a classical hydrogen bond with H, and that one of the preferred guests, PYR, experienced a significantly shorter contact of this type than the other guests. Hirshfeld surface analyses demonstrated that PYR was also involved in a greater percentage of (guest)N···H(host) interactions compared with the other guest molecules. Thermal analyses, on the other hand, revealed that 4MP (also a favoured guest species) formed the most stable complex of the four in this investigation. These results with H were compared to those obtained when employing a closely related host compound from a previous report, 1,4-bis(diphenylhydroxymethyl)benzene: while both host species preferred the same guests (PYR and 4MP), the extent of the selectivity of that host compound compared with H in the present work was significantly more enhanced. Thus, minor modifications may deleteriously affect the selectivity behaviour of closely related host compounds.