bluuebunny/crossref_metadata_2025_split huggingface dataset:
Participant fairness concern and cost‐sharing‐based dual‐channel low‐carbon supply chain management
Authors: Song Haohao , Wang Ying , Mao Xiangyu , Li Yongming 
Published: June 2024

AbstractConsidering consumer channel preferences, our paper establishes a two‐echelon differential low‐carbon supply chain model and discusses the effects of member's cost‐sharing and fairness concerns on equilibrium results. From a static perspective, the results indicate that retailers' fairness concern behavior will lead to a decrease in pricing and participants' efforts while manufacturers cost‐sharing strategy will only enhance retailers' advertising efforts. From a dynamic perspective, products' greenness, long‐term benefits of manufacturers and retailers, and social welfare will gradually increase and eventually saturate over time. In most cases, manufacturer‐to‐retailer cost‐sharing is a win–win strategy that not only enhances the long‐term interests but also realizes the greening and upgrading of the supply chain.
Stacked dual‐band antenna with flexible combination structure based on frequency selective surface
Authors: Dai Xiwang , Wu Haotian , Fu Yanghui , Hong Hui 
Published: June 2024

AbstractA stacked dual‐band antenna system based on frequency selective surface (FSS) is proposed in this paper. The system consists of lower band (LB) and higher band (HB) antenna elements with a frequency ratio of 2.5. FSS is introduced between LB and HB elements, which can fully reflect LB wave and transmit HB wave without reflection. LB and HB antenna arrays can be designed independently and combined with only a few screws, allowing for flexible combination of different arrays according to different needs. The stacked scheme can avoid the generation of grating lobes caused by excessive spacing of HB elements. Two different arrays were analyzed, simulated, and measured to validate the excellent features of the proposed scheme, such as easy to combine, stable radiation patterns, and lower mutual interference for LB and HB elements, respectively. The proposed system can be a promising candidate for dual‐band wireless communication with large frequency ratio.
Ultrathin wideband low profile circuit analog metamaterial absorber
Authors: Murali Naik K. H. , Singh Amit K. , Rama Krishna Dasari 
Published: June 2024

AbstractIn this paper, a low profile polarization insensitive ultrathin Circuit Analogue Absorber is presented for wideband absorption, encompassing the entire X‐band and Ku‐band applications achieving stable angular performance up to 45° angle of incidence in TE and TM polarized configurations. The absorber design being proposed consists of a multislotted square loop resonator loaded with lumped resistors, accompanied inside by a quadruple‐split annular copper ring. These components are arranged in a stacked configuration, with a grounded dielectric substrate serving as the base and an air spacer between the substrate and ground displaying absorptivity above 90% from 8.19 to 22.20 GHz with a 14.01 GHz and 92.2% of actual and fractional bandwidth respectively under the normal incidence. The thickness of designed wideband absorber is 0.0819(is the wavelength corresponding to the lowest operating frequency) making absorber Low profile and Ultrathin.
Wideband circularly polarized magnetic‐electric dipole antenna using shorted stub for millimeter wave endfire radiation
Authors: Xu Hengfei , Zhu Xi‐Cheng , Wei Pu , Yu Zhiqiang , Liu Chuanqing 
Published: June 2024

AbstractA wideband circularly polarized (CP) planar endfire magnetic‐electric dipole antenna with single‐layer substrate integrated waveguide (SIW) is presented for millimeter‐wave (mm‐wave) communications. The antenna consists of an SIW feeding line, an electric dipole formed by two tilted shorted stubs and a magnetic dipole produced by an open‐ended SIW. Wideband CP radiation is implemented by simultaneously excited electric and magnetic dipoles in orthogonal phase, and its working principle is analyzed in detail by employing the traveling wave mode along the shorted stubs. The antenna prototype is fabricated and measured as a demonstration, which clearly demonstrates wide impedance bandwidth over 48.9%, wide axial ratio (AR) bandwidth of 46%, novel electric dipole structure, cost‐effective fabrication, and easy integration performance.
Self‐supervised learning for denoising of multidimensional MRI data
Authors: Kang Beomgu , Lee Wonil , Seo Hyunseok , Heo Hye‐Young , Park HyunWook 
Published: June 2024

AbstractPurposeTo develop a fast denoising framework for high‐dimensional MRI data based on a self‐supervised learning scheme, which does not require ground truth clean image.Theory and MethodsQuantitative MRI faces limitations in SNR, because the variation of signal amplitude in a large set of images is the key mechanism for quantification. In addition, the complex non‐linear signal models make the fitting process vulnerable to noise. To address these issues, we propose a fast deep‐learning framework for denoising, which efficiently exploits the redundancy in multidimensional MRI data. A self‐supervised model was designed to use only noisy images for training, bypassing the challenge of clean data paucity in clinical practice. For validation, we used two different datasets of simulated magnetization transfer contrast MR fingerprinting (MTC‐MRF) dataset and in vivo DWI image dataset to show the generalizability.ResultsThe proposed method drastically improved denoising performance in the presence of mild‐to‐severe noise regardless of noise distributions compared to previous methods of the BM3D, tMPPCA, and Patch2self. The improvements were even pronounced in the following quantification results from the denoised images.ConclusionThe proposed MD‐S2S (Multidimensional‐Self2Self) denoising technique could be further applied to various multi‐dimensional MRI data and improve the quantification accuracy of tissue parameter maps.
Accelerated 3D multi‐channel B1+ mapping at 7 T for the brain and heart
Authors: Kent James L. , de Buck Matthijs H. S. , Dragonu Iulius , Chiew Mark , Valkovič Ladislav , Hess Aaron T. 
Published: June 2024

AbstractPurposeTo acquire accurate volumetric multi‐channel maps in under 14 s whole‐brain or 23 heartbeats whole‐heart for parallel transmit (pTx) applications at 7 T.Theory and MethodsWe evaluate the combination of three recently proposed techniques. The acquisition of multi‐channel transmit array maps is accelerated using transmit low rank (TxLR) with absolute mapping (Sandwich) acquired in a time‐interleaved acquisition of modes (B1TIAMO) fashion. Simulations using synthetic body images derived from Sim4Life were used to test the achievable acceleration for small scan matrices of 24 × 24. Next, we evaluated the method by retrospectively undersampling a fully sampled library of nine subjects in the brain. Finally, Cartesian undersampled phantom and in vivo images were acquired in both the brain of three subjects (8Tx/32 receive [Rx]) and the heart of another three subjects (8Tx/8Rx) at 7 T.ResultsSimulation and in vivo results show that volumetric multi‐channel maps can be acquired using acceleration factors of 4 in the body, reducing the acquisition time to within 23 heartbeats, which was previously not possible. In silico heart simulations demonstrated a RMS error to the fully sampled native resolution ground truth of 4.2° when combined in first‐order circularly polarized mode (mean flip angle 66°) at an acceleration factor of 4. The 14 s 3D maps acquired in the brain have a RMS error of 1.9° to the fully sampled (mean flip angle 86°).ConclusionThe proposed method is demonstrated as a fast pTx calibration technique in the brain and a promising method for pTx calibration in the body.
Case log trends of urogynecology and reconstructive pelvic surgery fellows: A comparison of urology‐ and gynecology‐based fellowship programs
Authors: Tabakin Alexandra L. , Sawhney Rohan , Daily Adam M. , Winkler Harvey A. , Shalom Dara F. , Tam Justina , Lee Wai 
Published: June 2024

AbstractAimsUrogynecology and Reconstructive Pelvic Surgery (URPS) fellowship can be pursued after completion of either a urology (URO) or obstetrics and gynecology (GYN) residency. Our aim is to determine differences in graduating fellow cohort (GFC) case logs between URO‐ and GYN‐based URPS programs.MethodsAccreditation Council for Graduate Medical Education case logs for URPS GFCs in both GYN‐ and URO‐based programs were analyzed for the 2019–2023 academic years (AY). Unpaired t‐tests with Welch's correction were used to compare annual mean logged cases between URO‐ versus GYN‐based GFCs for select surgical categories and the top 11 most logged index cases.ResultsGYN‐based GFCs logged more cases for all pelvic organ prolapse (POP) categories including surgery on apical POP, anterior wall POP, and posterior wall POP (all p < 0.01), while URO‐based GFCs logged more cases for surgery on the urinary system (p = 0.03). For the top 11 logged procedures, URO‐based GFCs logged more sacral neuromodulation cases (p = 0.02), whereas GYN‐based GFCs logged more slings, vaginal hysterectomies, minimally‐invasive hysterectomies, vaginal apical POP, vaginal posterior POP, vaginal anterior POP, and minimally‐invasive apical POP cases (all p < 0.01). There was no difference between URO‐ and GYN‐based GFCs for complex urodynamics, cystoscopy with botox injection, or periurethral injection cases.ConclusionsURO‐based URPS fellows tend to graduate with more surgery on the urinary system and sacral neuromodulation cases, while GYN‐based fellows perform more slings, hysterectomies, and POP surgery. These findings may help fellowships better understand potential differences in training among graduates from URO‐ and GYN‐based programs and encourage collaboration to lessen these discrepancies.
Efficacy and safety of semaglutide 2.4 mg by race and ethnicity: A post hoc analysis of three randomized controlled trials
Authors: Rubino Domenica , Angelene Hanna , Fabricatore Anthony , Ard Jamy 
Published: June 2024

AbstractObjectiveThe objective of this study was to evaluate the efficacy and safety of semaglutide 2.4 mg, a glucagon‐like peptide‐1 receptor agonist, by race and ethnicity, across three phase 3 trials.MethodsThe Semaglutide Treatment Effect in People with Obesity (STEP) clinical trials evaluated the efficacy and safety of once‐weekly subcutaneous semaglutide 2.4 mg. Here, STEP 1 and 3 data were pooled for analysis; STEP 2 data were examined separately. All analyses were conducted using data from racial and ethnic subgroups. The primary outcome was the estimated treatment difference in percent body weight change for semaglutide 2.4 mg versus placebo.ResultsParticipants reported race as White (STEP 1 and 3, 75.3%; STEP 2, 59.4%), Black (8.8%; 8.9%), Asian (10.6%; 27.3%), or other racial group (5.3%; 4.4%); and ethnicity as Hispanic or Latino (13.9%; 11.9%) or not Hispanic or Latino (83.9%; 88.1%). There were no significant interactions between treatment effect and race (STEP 1 and 3: p ≥ 0.07; STEP 2: p ≥ 0.15) or ethnicity (p ≥ 0.40; p ≥ 0.85). The safety of semaglutide 2.4 mg was consistent across subgroups.ConclusionsThe treatment effect of semaglutide was statistically significant versus placebo and clinically relevant across all racial and ethnic subgroups in STEP 1 and 3 and STEP 2. All subgroups across both samples demonstrated good tolerability.image
Isocaloric replacement of ultraprocessed foods was associated with greater weight loss in the POUNDS Lost trial
Authors: Yao Qisi , de Araujo Carolina D. , Juul Filippa , Champagne Catherine M. , Bray George A. , Sacks Frank M. , Vadiveloo Maya K. 
Published: June 2024

AbstractObjectiveHigher intake of ultraprocessed foods (UPFs) is associated with obesity. We examined whether replacing UPFs (NOVA 4) with minimally processed foods and culinary ingredients (NOVA 1 + 2) was associated with differential weight change in this secondary prospective analysis of the Preventing Overweight Using Novel Dietary Strategies (POUNDS) Lost trial.MethodsWe estimated percent energy intake (%kcal) from the four NOVA groups using 24‐h dietary recalls in a subset of 356 participants. Multivariable‐adjusted substitution models examined whether replacing %kcal from UPFs with NOVA 1 + 2 was associated with greater weight, body fat percentage, trunk fat, and waist circumference reduction at 6 months; changes in parameters were compared among NOVA 1 + 2 tertiles (T).ResultsParticipants were on average 52.3 years of age, 85% White, 55% female, and 58.2% nonsmoking, with a mean BMI of 32.7 kg/m2. Replacing 10%kcal of UPFs with NOVA 1 + 2 was associated with greater 6‐month weight (ß = 0.51, 95% CI: −0.93 to −0.09, p = 0.02), body fat percentage (ß = 2.7, 95% CI: −5.10 to −0.43, p = 0.02), and trunk fat reduction (ß = 3.9, 95% CI: −7.01 to −0.70, p = 0.02), but not waist circumference reduction. Participants in T3 (−8.33 kg) versus T1 (−5.32 kg) of NOVA 1 + 2 had greater weight loss (p < 0.001).ConclusionsIsocaloric substitution of UPFs with NOVA 1 + 2 was associated with marginally greater weight loss under energy restriction. These modest findings support more research exploring the mechanisms linking UPFs with body weight regulation beyond energy intake.
New stable waterborne amorphous polylactic acid/organoclay nanocomposites prepared using emulsification solvent evaporation method
Authors: Abdenour Chenni , Nguyen‐Tri Phuong , Chabot Bruno , Barnabé Simon , Bley Julien , Tolnai Balázs , Guy Njamen , Eesaee Mostafa 
Published: June 2024

AbstractWater based polylactic acid (PLA)‐surface modified montmorillonite (MMt) nanocomposites as biobased formulations for paper coating were successfully developed using emulsification solvent evaporation method. Electrostatic and steric stabilization mechanisms have contributed to the production of stable emulsions up to 5 months at 23 ± 1°C, revealing strong repulsive forces generated between the nanoparticles as confirmed by zeta potential (ζ) and dynamic light scattering (DLS) analysis. MMt particles were fully encapsulated by PLA as demonstrated by transmission electron microscopy (TEM) micrographs. Meanwhile the film formation process highlighted the importance of emulsifier's type and solubility in the polymer matrix, as no films were obtained when sodium oleate was used alone compared with continuous, homogeneous, and free‐standing films obtained when the combination Tween 80 (80 wt%)—sodium oleate (20 wt%) was used. Scanning electron microscopy (SEM) micrographs of the cross‐section's surfaces showed homogeneous dispersion of the MMt particles with no clusters or agglomerates formed. Thermal analyses using differential scanning calorimetry and thermogravimetric analysis (DSC‐TGA) showed an overall reduction in the glass transition temperature (Tg) and the thermal stability of neat PLA, whoever this reduction was recovered when MMt was added due to the confinement effect. Thickened PLA and PLA/MMt emulsions using 1 wt% xanthan gum showed a non‐Newtonian behavior and shear thinning flow with suitable viscosity values for paper coating applications.Highlights
Development of stable PLA/organoclay nanocomposite aqueous dispersions.
Steric and electrostatic mechanisms provided excellent stability.
Full encapsulation of organoclay platelets in nanometric PLA particles.
Formation of free‐standing films from PLA/organoclay emulsions.
Thickened PLA/organoclay emulsions using Xanthan gum for paper coatings.
Utilizing mesenteric near‐infrared reflectance spectroscopy to predict gastrointestinal complication risks and optimize feeding strategies in infants undergoing cardiac surgery
Authors: Xie Wenpeng , Liu Yinan , Zeng Yating , Zheng Yirong , Chen Qiang 
Published: June 2024

ABSTRACTImportanceGastrointestinal complications are common perioperative complications in children with congenital heart disease (CHD), and as near‐infrared reflectance spectroscopy (NIRS) provides a non‐invasive, real‐time monitoring of regional tissue oxygenation, we envisioned monitoring and preventing the development of gastrointestinal complications through the use of NIRS.ObjectiveTo assess the utility of NIRS for predicting gastrointestinal complication risks and determining optimal initial feeding times in infants post‐cardiac surgery.MethodsThis retrospective study included 65 infants with CHD treated at our hospital from January 2021 to January 2022. We collected and analyzed data on mesenteric regional venous and arterial oxygen saturation, arterial partial pressure of oxygen, first lactic acid levels, timing of initial enteral feeding, and incidence of gastrointestinal complications.ResultsOut of 65, 61 infants were eligible for inclusion (four cases were excluded). Infants with gastrointestinal complications post‐surgery showed significantly lower mesenteric NIRS values and earlier feeding times compared to those without complications (55.5 ± 3.3 vs. 59.6 ± 6.3, P = 0.029; and 59.8 ± 6.7 vs. 66.9 ± 5.7, P = 0.002, respectively). Multivariable binary logistic regression analysis revealed that mesenteric NIRS readings at the time of initial feeding independently predicted gastrointestinal complications (odds ratio, 0.802; 95% confidence interval, 0.693–0.928; P = 0.003). receiver operating characteristic curve analysis indicated a significant predictive value of mesenteric NIRS at initial feeding time (area under the curve: 0.799), with a suggested critical threshold of 63.1% (93% sensitivity, 70% specificity). Pearson correlation test confirmed a significant association between mesenteric NIRS at initial feeding time and the establishment of enteral feeding.InterpretationMesenteric NIRS measurements at the time of initial feeding provide a reliable method for identifying infants at risk of gastrointestinal complications following cardiac surgery and can inform decisions regarding the timing of initial postoperative feeding.
Serum biomarkers in neuroendocrine cell hyperplasia of infancy
Authors: Marczak Honorata , Peradzyńska Joanna , Paplińska‐Goryca Magdalena , Misiukiewicz‐Stępień Paulina , Proboszcz Małgorzata , Krenke Katarzyna 
Published: June 2024

AbstractBackgroundNeuroendocrine cell hyperplasia of infancy (NEHI) is a form of childhood interstitial lung disease of unknown origin associated with hyperplasia of pulmonary neuroendocrine cells (PNECs). Diagnosis is based on the characteristic clinical picture and typical radiological imaging, and, in some cases, on lung biopsies. To date, no biochemical indicators of the disease have been identified.AimWe aimed to determine biomarkers that could be useful in the management of children diagnosed with NEHI.MethodsPatients with NEHI and healthy children were enrolled. Concentrations of serum biomarkers secreted by PNECs (calcitonin gene‐related peptide and gastrin‐releasing peptide) and biomarkers of the destruction of alveolar capillary membrane (surfactant proteins A and D [SP‐A and SP‐D]; glycoprotein Krebs von den Lungen‐6 [KL‐6]; metalloproteinases 7 and 9 [MMP‐7 and MMP‐9]; tissue inhibitor of metalloprotease 1) were measured.ResultsFifty‐two children with NEHI and 23 healthy children were included in the study. The median age of children with NEHI was 3.9 years. There were no differences in serum levels of biomarkers secreted by PNECs between groups. KL‐6 levels were significantly higher in children with NEHI than in healthy ones (median 119.6 vs. 92.1 U/mL, p = 0.003); however, concentrations of KL‐6 were low in both groups. No significant differences existed between groups for the remaining biomarkers associated with the destruction of the alveolar‐capillary membrane.ConclusionsMeasurement of serum biomarkers released by PNECs and those associated with the destruction of the alveolar‐capillary membrane does not appear to be useful in the management of children with NEHI.
Two‐sample testing for random graphs
Authors: Wen Xiaoyi 
Published: June 2024

AbstractThe employment of two‐sample hypothesis testing in examining random graphs has been a prevalent approach in diverse fields such as social sciences, neuroscience, and genetics. We advance a spectral‐based two‐sample hypothesis testing methodology to test the latent position random graphs. We propose two distinct asymptotic normal statistics, each optimally designed for two different models—the elementary Erdős–Rényi model and the more complex latent position random graph model. For the latter, the spectral embedding of the adjacency matrix was utilized to estimate the test statistic. The proposed method exhibited superior efficacy as it accomplished higher power than the conventional method of mean estimation. To validate our hypothesis testing procedure, we applied it to empirical biological data to discern structural variances in gene co‐expression networks between COVID‐19 patients and individuals who remained unaffected by the disease.
Evaluating the shear performance of reinforced concrete beams using waste glass powder as a sustainable cement substitute
Authors: Omer Brwa , Saeed Jalal 
Published: June 2024

AbstractThe scarcity of comprehensive data on the shear properties of reinforced GP‐concrete beams without shear reinforcement has hindered their widespread use, mainly due to challenges in predicting their shear performance. This study examines the influence of incorporating up to 15% waste glass powder (GP) with two separate particle size categories: GP‐A (55 to 135 μm) and GP‐B (finer than 55 μm) as a cement replacement on the 180‐day shear performance of reinforced concrete beams with varying cement content and without stirrups. To accomplish this, a total of 14 beams were used, all sharing identical dimensions measuring 200 mm × 250 mm × 2000 mm. The aforementioned parameters were investigated for their effects on the shear performance of beams, including crack patterns, modes of failure, load–deflection behavior, and strength capacities at different loading stages. Furthermore, this investigation explores the applicability of the most commonly used design codes of practice for predicting the shear strength of reinforced GP‐modified concrete beams. These codes are typically employed to design the shear strength of reinforced conventional concrete shallow beams without shear reinforcement. The study's findings indicate that the impact of GP particle size on the shear performance of beams with the same GP content is almost negligible. Additionally, the study found that incorporating GP into concrete beams does not have any negative effects on their cracking load capacity, shear strength, or flexural cracking load capacity. In fact, it can even improve the latter. A comparison of experimental results with predictions from the design codes revealed that both the CEB‐FIP (1990) equation and the ACI equations provided safe estimates of shear strength for the tested beams. However, the CEB‐FIP (1990) equation yielded predictions with a lower mean, standard deviation, and coefficient of variation compared with the ACI equations, suggesting a higher level of accuracy in its estimates. The findings affirm the suitability of GP‐concrete as a viable alternative in concrete structures specifically engineered to withstand shear forces.