bluuebunny/crossref_metadata_2025_split huggingface dataset:
Isolation, Plant Growth‐Promoting Properties, and Whole‐Genome Sequence of a Novel Paenibacillus Species
Authors: Tran Dinh Minh , Huynh To Uyen , Do Tu Oanh , Nguyen Anh Dzung 
Published: June 2024

ABSTRACTThis work aimed to isolate and characterize a novel chitin‐degrading bacterium from Yok Don National Park, Vietnam, for crop production studies. Among the chitinolytic isolates, strain YSY‐4.3 was selected, which grew rapidly and produced a large halo around the colony. 16S rDNA analysis indicated that the strain is a novel species in the genus Paenibacillus, and an in vitro evaluation showed that the strain produced phytohormones (IAA, GA3, and zeatin), biofilms, and siderophores; possessed cellulase; and exerted antifungal activity. The whole genome of the strain was 5,628,400 bp with 49.3% GC content, 5056 coding sequences, 48 tRNA, and 1 rRNA. It shared the highest values of digital DNA–DNA hybridization (67.4%) and average nucleotide identity (89.54%) with those of Paenibacillus woosongensis B2_4 (CP126084.1), suggesting a novel species. Of the coding sequences, 4287 proteins were identified by COG, and 2561 were assigned by KEGG. The genome contained at least 51 genes involved in plant growth and resistance to heavy‐metal toxicity and 359 carbohydrate‐active enzymes. The chitinolytic system of the strain was composed of 15 enzymes, among them, PsChiC, which contained a GH18 catalytic domain and a GH5 catalytic domain, had not been previously reported. In addition, the genome possessed 15 gene clusters encoding antimicrobial metabolites, 10 of which are possible novel clusters. This study expands knowledge regarding novel chitinolytic bacteria from Yok Don National Park and provides a valuable gene resource for future studies.
Impact of Obesity on Timing of Tracheotomy: A Multi‐institutional Retrospective Study
Authors: Yousef Andrew , Soliman Shady I. , Solomon Isaac , Panuganti Bharat A. , Francis David O. , Pang John , Klebaner Dasha , Asturias Alicia , Alattar Ali , Wood Samuel , Terry Morgan , Bryson Paul C. , Tipton Courtney B. , Zhao Elise E. , O'Rourke Ashli , Santa Maria Chloe , Grimm David R. , Sung C.K. , Lao Wilson P. , Thompson Jordan M. , Crawley Brianna K. , Rosen Sarah , Berezovsky Anna , Kupfer Robbi , Hennesy Theresa B. , Clary Matthew , Joseph Ian T. , Sarhadi Kamron , Kuhn Maggie , Abdel‐Aty Yassmeen , Kennedy Maeve M. , Lott David G. , Weissbrod Philip A. 
Published: June 2024

ObjectiveTo examine the impact of increased body mass index (BMI) on (1) tracheotomy timing and (2) short‐term surgical complications requiring a return to the operating room and 30‐day mortality utilizing data from the Multi‐Institutional Study on Tracheotomy (MIST).MethodsA retrospective analysis of patients from the MIST database who underwent surgical or percutaneous tracheotomy between 2013 and 2016 at eight institutions was completed. Unadjusted and adjusted logistic regression analyses were used to assess the impact of obesity on tracheotomy timing and complications.ResultsAmong the 3369 patients who underwent tracheotomy, 41.0% were obese and 21.6% were morbidly obese. BMI was associated with higher rates of prolonged intubation prior to tracheotomy accounting for comorbidities, indication for tracheotomy, institution, and type of tracheostomy (p = 0.001). Morbidly obese patients (BMI ≥35 kg/m2) experienced a longer duration of intubation compared with patients with a normal BMI (median days intubated [IQR 25%–75%]: 11.0 days [7–17 days] versus 9.0 days [5–14 days]; p < 0.001) but did not have statistically higher rates of return to the operating room within 30 days (p = 0.12) or mortality (p = 0.90) on multivariable analysis. This same finding of prolonged intubation was not seen in overweight, nonobese patients when compared with normal BMI patients (median days intubated [IQR 25%–75%]: 10.0 days [6–15 days] versus 10.0 days [6–15 days]; p = 0.36).ConclusionBMI was associated with increased duration of intubation prior to tracheotomy. Although morbidly obese patients had a longer duration of intubation, there were no differences in return to the operating room or mortality within 30 days.Level of Evidence3 Laryngoscope, 134:4674–4681, 2024
Recent Progress in Light Polarization Control Schemes for Silicon Integrated Photonics
Authors: Zafar Humaira , Pereira Mauro F. 
Published: June 2024

AbstractLight polarization control is a target in photonics, and this paper provides a comprehensive review of research from various groups on the silicon‐on‐insulator (SOI) platform. It draws comparisons between devices such as polarization splitters (PS), polarizers, and polarization splitters/rotators (PSR). These devices are fabricated using various technologies, including silicon nanowires, ridge waveguides, hybrid plasmonic waveguides, and subwavelength grating (SWG) waveguides. A detailed review of polarizers used as cleanup filters in splitters is initiated. Subsequently, various polarization splitters utilizing asymmetric directional couplers (ADCs), which typically exhibiting low extinction ratios (ERs), are delved. To enhance ERs, a detailed comparison of methods outlined in the literature is provided. One notable method includes integrating on‐chip polarizers at both ports to eliminate unwanted light fractions and achieve exceptionally high ERs. Furthermore, SWG‐based polarizers and splitters commonly face issues with Bragg reflections that can affect other photonic devices and lasers and ways to minimize unwanted polarization back reflections in SWG‐designed polarization control devices are examined. Finally, emerging applications in mid‐infrared (MIR) sensing are explored, highlighting the necessity of polarization rotators for on‐chip transverse electric (TE) operation, since quantum cascade lasers, the primary sources in this range, emitting radiation in the (TM) mode.
A Delaunay refinement algorithm for the particle finite element method applied to free surface flows
Authors: Leyssens Thomas , Henry Michel , Lambrechts Jonathan , Remacle Jean‐François 
Published: June 2024

AbstractThis article proposes two contributions to the calculation of free‐surface flows using the particle finite element method (PFEM). The PFEM is based upon a Lagrangian approach: a set of particles defines the fluid and each particle is associated with a velocity vector. Then, unlike a pure Lagrangian method, all the particles are connected by a triangular mesh. The difficulty lies in locating the free surface from this mesh. It is a matter of deciding which of the elements in the mesh are part of the fluid domain, and to define a boundary—the free surface. Then, the incompressible Navier–Stokes equations are solved on the fluid domain and the particle position is updated using the velocity vector from the finite element solver. Our first contribution is to propose an approach to adapt the mesh with theoretical guarantees of quality: the mesh generation community has acquired a lot of experience and understanding about mesh adaptation approaches with guarantees of quality on the final mesh. The approach we use here is based on a Delaunay refinement strategy, allowing to insert and remove nodes while gradually improving mesh quality. We show that what is proposed allows to create stable and smooth free surface geometries. One characteristic of the PFEM is that only one fluid domain is modeled, even if its shape and topology change. It is nevertheless necessary to apply conditions on the domain boundaries. When a boundary is a free surface, the flow on the other side is not modeled, it is represented by an external pressure. On the external free surface boundary, atmospheric pressure can be imposed. Nevertheless, there may be internal free surfaces: the fluid can fully encapsulate cavities to form bubbles. The pressure required to maintain the volume of those bubbles is a priori unknown. For example, the atmospheric pressure would not be sufficient to prevent the bubbles from deflating and eventually disappearing. Our second contribution is to propose a multi‐point constraint approach to enforce global incompressibility of those empty bubbles. We show that this approach allows to accurately model bubbly flows that involve two fluids with large density differences, for instance water and air, while only modeling the heavier fluid.
Excellent thermal conductive epoxy composites via adding UHMWPE fiber obtained by hot drawing method
Authors: Shi Shanshan , Jiang Tao , Wang Ying , Sun Yongfei , Cao Shuai , Gui Xiaofan , Li Yifan , Yu Wei , Lin Donghai , Xie Huaqing , Li Xiaofeng , Li Wenge , Sun Kai , Yu Jinhong , Wu Xinfeng 
Published: June 2024

AbstractThe continuous updating and iteration of electronic devices brings about a significant accumulation of heat. It is urgent to enhance the thermal properties of polymer‐based composites to alleviate the heat dissipation problem in the microelectronics industry. In this paper, the hot drawing process was introduced to increase the crystallinity of ultra‐high molecular weight polyethylene (UHMWPE) fiber and improve its thermal conductivity. The ultra‐high molecular weight polyethylene fiber/epoxy resin (UHMWPE fiber/Epoxy) composites with high thermal conductivity were prepared by compositing UHMWPE fiber with epoxy resin under vacuum conditions. Due to the good crystallinity of the UHMWPE fiber (86%), an efficient thermal conduction path is provided for phonons in the axial direction along the fibers. The results show that the thermal conductivity of the composites reaches a maximum of 3.51 W/mK (in‐plane), which is 17.47 times higher than that of the epoxy resin (0.19 W/mK). The thermography pictures indicate that the composites have better heat transfer capacity with an increase in the draw ratio (λ). In addition, the composites also have the characteristics of low density and low electrical conductivity. These researches will provide a new idea for the preparation of all‐polymer composites with high thermal properties.Highlights
A hot drawing process was introduced to increase the crystallinity of UHMWPE fiber for improving thermal conductivity.
High crystallinity facilitates the reduction of phonon scattering and the transmission of thermal energy by phonons.
The obtained polymer composites exhibit an ultra‐high in‐plane thermal conductivity.
Flexural properties and evaluation of Al‐CFRP self‐pierce riveted laminates under three‐point bending loads
Authors: Wang Yazhe , Ma Qihua 
Published: June 2024

AbstractThis study aims to investigate the bending performance and evaluation of aluminum‐carbon fiber reinforced plastic (Al‐CFRP) riveted laminates under varying parameters via self‐pierce riveting and three‐point bending tests. Through the self‐pierce riveting process test, a riveted joint meeting standard requirement was obtained. Based on this joint combination form, Al‐CFRP self‐pierce riveted laminates were prepared. The bending performance test showed the riveted laminate with a span of 80 mm had the greatest bending resistance at a thickness of 2 mm, and the overall strain of the Al‐CFRP self‐pierce riveted laminates was observed by digital image correlation (DIC) technology. Subsequently, validated numerical simulation modeling was conducted by correlating with the test results. On this numerical simulation model basis, further parametric studies and bending performance evaluations (including number of rivets, CFRP lay‐up angle, and laminates width) of the Al‐CFRP self‐pierce riveted laminates were systematically carried out. It was found that the peak load F and bending strength R improved by 1.32% and 26.66%, respectively, while the mass M reduced by 8.99%, for the design variables of var1 of 20 mm, var2 of 6, and var3 of [0/90°]2s.Highlight
An Al‐CFRP riveted laminate structure is proposed to improve the bending properties of riveted laminates by changing the rivet parameters and laminate parameters.
The bending properties of riveted laminates with different spans were investigated under three‐point bending loading conditions.
The DIC technique observed the changes in the strain field of riveted laminates during bending.
The effects of different structural parameters on the bending performance of Al‐CFRP riveted laminates were investigated by numerical simulation.
An evaluation method combining the gray correlation degree and the combination assignment method is proposed to obtain the optimum riveted laminate structure under bending load conditions.
The relationship between bullying victimization and academic performance among adolescents: The chain mediating roles of social anxiety and short video addiction
Authors: Jiang Yunpeng , Feng Yang , Qi Jianhao , He Ru , Chao Miao 
Published: June 2024

AbstractTo investigate how bullying victimization affects academic performance and the mediating effects of social anxiety and short video addiction among adolescents, a questionnaire survey was conducted on 2055 secondary school students in China. A Structural Equation Model was employed to analyze the data. The results showed that bullying victimization, social anxiety, short video addiction, and academic performance correlated significantly with each other. Bullying victimization directly influenced academic performance, and indirectly affected academic performance through the independent mediator of short video addiction, and the chain mediation of social anxiety and short video addiction. This study provides a novel perspective on understanding the underlying mechanisms through which bullying victimization impacts academic performance, emphasizing the importance of addressing the adverse effects of bullying among adolescents.
Assimilation of Transformed Retrievals from IASI radiances versus direct assimilation of IASI radiances at the Met Office
Authors: Levens Peter J. , Migliorini Stefano 
Published: June 2024

AbstractSatellite radiances make up the vast majority of observations that are assimilated routinely at the Met Office and at other major numerical weather prediction (NWP) centres. Improvements in the use of these data have led to significant improvements in NWP forecast skill over the last 30 years. Since the advent of hyperspectral sensors, capable of measuring infrared radiance emerging from the atmosphere over thousands of channels, data providers and NWP centres have been facing the challenges of distributing, monitoring, and assimilating a considerable wealth of data. Forthcoming hyperspectral sensors such as the Infrared Atmospheric Sounding Interferometer New Generation (IASI‐NG) on MetOp Second Generation (Metop‐SG) and the Meteosat Third Generation Infrared Sounder (MTG‐IRS) will increase the amount of data to be considered for assimilation even further. It has been shown that Transformed Retrievals (TRs) generated from a spectrum of radiances can represent most of the information content of the radiances in a significantly reduced set of TR components. In this article we show for the first time, to our knowledge, that by assimilating TRs in an operational data assimilation system it is possible to achieve forecast skill gains similar to those when the same radiances used to generate the TRs are assimilated directly. These results pave the way to exploiting an order‐of‐magnitude larger number of channels from hyperspectral sounders for operational NWP.
Rydberg‐Atom Graphs for Quadratic Unconstrained Binary Optimization Problems
Authors: Byun Andrew , Jung Junwoo , Kim Kangheun , Kim Minhyuk , Jeong Seokho , Jeong Heejeong , Ahn Jaewook 
Published: June 2024

AbstractThere is a growing interest in harnessing the potential of the Rydberg‐atom system to address complex combinatorial optimization challenges. Here an experimental demonstration of how the quadratic unconstrained binary optimization (QUBO) problem can be effectively addressed using Rydberg‐atom graphs is presented. The Rydberg‐atom graphs are configurations of neutral atoms organized into mathematical graphs, facilitated by programmable optical tweezers, and designed to exhibit many‐body ground states that correspond to the maximum independent set (MIS) of their respective graphs. Four elementary Rydberg‐atom subgraph components are developed, not only to eliminate the need of local control but also to be robust against interatomic distance errors, while serving as the building blocks sufficient for formulating generic QUBO graphs. To validate the feasibility of the approach, a series of Rydberg‐atom experiments selected to demonstrate proof‐of‐concept operations of these building blocks are conducted. These experiments illustrate how these components can be used to programmatically encode the QUBO problems to Rydberg‐atom graphs and, by measuring their many‐body ground states, how their QUBO solutions are determined subsequently.
Prevalence of functional hypothalamic amenorrhea in a cohort of women referred because of polycystic ovary syndrome
Authors: Holzer Iris , Marculescu Rodrig , Begemann Vanessa , Haaser Sophie , Dewailly Didier , Ott Johannes 
Published: June 2024

AbstractPurposeTo study how many women are misdiagnosed with polycystic ovary syndrome (PCOS) instead of functional hypothalamic amenorrhea (FHA), which is important to improve overall well‐being, long‐term health, and fertility issues.MethodsThe FHA prevalence in a cohort of 401 women previously diagnosed with PCOS (revised Rotterdam criteria) was estimated retrospectively based on experts and previous studies: luteinizing hormone (LH) <2 IU/mL, LH <5.36 IU/mL, sex hormone binding globulin (SHBG) >53.3 nmol/L, Testosterone <0.36 ng/mL, and the formula of Beitl et al. [(7.05*testosterone ng/mL) − (0.005*SHBG nmol/L) + (0.117*LH mIU/mL) − 2.463 < 0].ResultsThe highest rate of women with suspicion of FHA in patients referred for PCOS was found when the SHBG cut‐off of ≥53.3 nmol/L was used (36.9%), followed by the use of the LH cut‐off of <5.36 IU/mL (12.5%). The minimal suspected rate was achieved with the LH cut‐off <2.0 IU/mL (1.7%). Women who fulfilled the criteria for PCOS phenotype D (ovulatory dysfunction and polycystic ovarian morphology) revealed the maximum rate for suspected FHA (up to 47.6%).ConclusionIt is still necessary to evaluate reliable markers for the differential diagnosis between PCOS and FHA to avoid incorrect treatment, which might lead to negative long‐term effects in women with undiagnosed FHA.
The (de)motives for using food waste reduction apps among hospitality providers
Authors: Derqui Belén , Filimonau Viachaslau 
Published: June 2024

AbstractDigital technology can aid in redistributing surplus meals in hospitality organisations, but little is known about the (de)motives for its use among industry professionals. Yet, a better understanding of these (de)motives can facilitate a more tailored design of technological solutions for sustainability purposes. This study examines managerial perceptions of Too Good To Go, a world's leading app for surplus food redistribution, according to the number of downloads and reviews in both Google Play and iPhone App Store. By applying qualitative methods, through in‐depth, semi‐structured interviews among foodservice providers in Barcelona, Spain (n = 42), the study showcases economic motives as a prime driver of this technology's adoption while environmental motives play a secondary role. Low awareness of food waste generation, a lack of technological expertise, and limited resources represent the main demotives. To facilitate surplus food redistribution, technological solutions should be simplified and enhanced with other functions, such as delivery. The economic benefits of technology use should be emphasised, while making a conscious effort to enhance food waste awareness among industry professionals.
Systematic literature review and bibliometric analysis of green finance and renewable energy development
Authors: Muhmad Siti Nurain , Cheema Sadia , Mohamad Ariff Akmalia , Nik Him Nik Fadhilah , Muhmad Siti Nasuha 
Published: June 2024

AbstractClimate change poses a significant threat to ecosystems, the economy, human health, and livelihoods worldwide. Hence, it is imperative to establish international collaboration among governments and corporations to effectively address climate change through the reduction of emissions and preservation of the environment. This study aims to examine and deliberate on publications on green finance initiatives and renewable energy development. This study conducts a systematic literature review and a meticulous bibliometric analysis that examines 128 scientific papers from 2010 to 2023 on green finance and renewable energy development to address the urgent need for sustainable solutions in the fight against climate change. The analysis shows a significant increase in annual publications, revealing growth in global interest in green finance and renewable energy with high‐impact journals playing a vital role in publishing research outputs. Furthermore, China is the country with the most publications, holding a commanding position. Another finding from the analysis is that from an academic perspective, the United States is also a country that is heavily engaged in research on green finance and renewable energy development. The study confirms the positive relationship between green finance and renewable energy development, and it shows that there is an urgent need to have green finance initiatives in companies to accelerate the development of renewable energy. The findings emphasize the importance of further research and global collaborations to harness the potential of green finance for a sustainable, low‐carbon future.
Inhibitory modulation of action potentials in crayfish motor axons by fluoxetine
Authors: Wang Selene , Lam Si Seng , Aguilar Anisah , Ali Hani , Anakwe Stephanie , Barahona Katherine , Hunyadi Olivia , Jain Kaahini , Kolodziejski Derek , Lal Anindita , Li Man , MacKenzie Frank , Miller John , Nardin Oliviero , Nguyen Emily , Pappu Jaii , Rodriguez Melissa , Lin Jen‐Wei 
Published: June 2024

AbstractThe goal of this report is to explore how K2P channels modulate axonal excitability by using the crayfish ventral superficial flexor preparation. This preparation allows for simultaneous recording of motor nerve extracellular action potentials (eAP) and intracellular excitatory junctional potential (EJP) from a muscle fiber. Previous pharmacological studies have demonstrated the presence of K2P‐like channels in crayfish. Fluoxetine (50 µM) was used to block K2P channels in this study. The blocker caused a gradual decline, and eventually complete block, of motor axon action potentials. At an intermediate stage of the block, when the peak‐to‐peak amplitude of eAP decreased to ∼60%–80% of the control value, the amplitude of the initial positive component of eAP declined at a faster rate than that of the negative peak representing sodium influx. Furthermore, the second positive peak following this sodium influx, which corresponds to the after‐hyperpolarizing phase of intracellularly recorded action potentials (iAP), became larger during the intermediate stage of eAP block. Finally, EJP recorded simultaneously with eAP showed no change in amplitude, but did show a significant increase in synaptic delay. These changes in eAP shape and EJP delay are interpreted as the consequence of depolarized resting membrane potential after K2P channel block. In addition to providing insights to possible functions of K2P channels in unmyelinated axons, results presented here also serve as an example of how changes in eAP shape contain information that can be used to infer alterations in intracellular events. This type of eAP‐iAP cross‐inference is valuable for gaining mechanistic insights here and may also be applicable to other model systems.