bluuebunny/crossref_metadata_2025_split huggingface dataset:
Seaweed functional strategies, functional groups, and taxon dynamics through a 213-year historical series of Rio De Janeiro Bay
Authors: Machado João P. G. , Oliveira Vinícius P. 
Published: October 2024

AbstractFrom Darwin’s visit to nowadays, we analyzed the changes in species- and genus-level richness and turnover, equity, diversity, composition, as well as functional group and functional strategy dynamics over a 213-year historical series of the seaweed assemblage from Rio de Janeiro Bay. We developed new analysis methods to serve as a protocol for worldwide functional and bioindicator assessment of seaweed assemblages. Over the two centuries of changes tracked, the integration of taxonomic, functional group, and functional strategy analyses unraveled a trajectory of seaweed assemblage restructuring under human disturbance. Our taxonomic analyses showed a high species and genus turnover and a decline in richness, with the local extinction of the Sargassum genus, responsible for warm temperate kelp forests in the Western Atlantic. Seaweed functional group data presented a trend of morphological simplification and miniaturization, with the decline of marine forest canopy and subcanopy-forming groups favoring filamentous and crustose algae dominance. Functional strategy data showed the historical decline of competitive structuring as an assemblage driver in favor of disturbance and stress-structuring, as highlighted by the competitive strategy decrease, coupled with stress-tolerant and ruderal strategies rise across metrics. These changes were successfully portrayed by the new ecological index we proposed, the C/SR index. It is the first quantitative index for seaweed assemblages, designed to be a trackable metric for conservation, monitoring, and restoration efforts.
Metabolite changes by combined treatment, ethyl formate and low temperature, in Drosophila suzukii
Authors: Lee Junbeom , Kim Hyun-Kyung , Jeon Jong-Chan , Seok Seung-Ju , Kim Gil-Hah , Koo Hyun-Na , Lee Dae-Weon 
Published: October 2024

AbstractAlthough ethyl formate (EF) fumigant and low temperature applications are widely used for pest management, studies related to their mechanisms of action and subsequent metabolic changes in Drosophila suzukii models are still unclear. In this study, a comparative metabolome analysis was performed to investigate the major metabolites modified by EF and low temperature and how they are related to and affect insect physiology. Most of the identified metabolites function in metabolic pathways related to the biosynthesis of amino acids, nucleotides and cofactors. In addition, a combined treatment with EF and low temperature significantly altered the tricarboxylic acid cycle (TCA) and the levels of the purine and pyrimidine classes of metabolites. Interestingly, the levels of cytochrome P450 and glutathione metabolites involved in detoxification dramatically changed under stress conditions compared to those in the control group.
Astragaloside IV reduces mutant Ataxin-3 levels and supports mitochondrial function in Spinocerebellar Ataxia Type 3
Authors: Lin Yongshiou , Cheng Wenling , Chang Juichih , Wu Yuling , Hsieh Mingli , Liu Chinsan 
Published: October 2024

AbstractThis study investigated the therapeutic effects of astragaloside IV (AST) on spinocerebellar ataxia type 3 (SCA3), also known as Machado-Joseph disease (MJD), a neurodegenerative disorder. Human neuroblastoma SK-N-SH cells expressing mutant ataxin-3 protein with 78 CAG repeats (MJD78) were employed as an in vitro model. Protein expression analysis demonstrated that AST treatment reduced mutant ataxin-3 protein expression and aggregation by enhancing the autophagic process in MJD78 cells. Elevated oxidative stress levels in MJD78 cells were significantly reduced following AST treatment, which also enhanced antioxidant capacity, as evidenced by flow cytometry and antioxidant enzyme activity assays. Furthermore, AST treatment ameliorated mitochondrial dysfunction in MJD78 cells, including improvements in mitochondrial membrane potential, respiration, and mitochondrial dynamics. In conclusion, AST administration increased antioxidant capacity, reduced both cellular and mitochondrial oxidative stress, and improved mitochondrial quality control processes through fusion, fission, and autophagy. These mechanisms collectively reduced intracellular mutant ataxin-3 protein aggregation, thereby achieving therapeutic efficacy in the SCA3 model.
A survey on person and vehicle re‐identification
Authors: Wang Zhaofa , Wang Liyang , Shi Zhiping , Zhang Miaomiao , Geng Qichuan , Jiang Na 
Published: October 2024

AbstractPerson/vehicle re‐identification aims to use technologies such as cross‐camera retrieval to associate the same person (same vehicle) in the surveillance videos at different locations, different times, and images captured by different cameras so as to achieve cross‐surveillance image matching, person retrieval and trajectory tracking. It plays an extremely important role in the fields of intelligent security, criminal investigation etc. In recent years, the rapid development of deep learning technology has significantly propelled the advancement of re‐identification (Re‐ID) technology. An increasing number of technical methods have emerged, aiming to enhance Re‐ID performance. This paper summarises four popular research areas in the current field of re‐identification, focusing on the current research hotspots. These areas include the multi‐task learning domain, the generalisation learning domain, the cross‐modality domain, and the optimisation learning domain. Specifically, the paper analyses various challenges faced within these domains and elaborates on different deep learning frameworks and networks that address these challenges. A comparative analysis of re‐identification tasks from various classification perspectives is provided, introducing mainstream research directions and current achievements. Finally, insights into future development trends are presented.
Internal faults in stator winding of synchronous generator: Modelling, detecting and protecting
Authors: Rezaei Amir Hossein , Beikbabaei Milad , Abedini Moein , Davarpanah Mahdi 
Published: October 2024

AbstractProtection of synchronous generators (SGs) against internal faults, such as stator earth fault (SEF) and turn‐to‐turn fault (TTF), is crucial for ensuring the stability and security of the power system. This paper presents a phase domain model for simulating SEF and TTF in SGs, requiring only nameplate data and avoiding the need for complex geometric data or lengthy simulations typical of FEM models. The stator winding is divided into three sections, allowing for the calculation of magnetic field distribution in both healthy and faulty conditions. The model is capable of simulating short‐circuit turns at various locations within the stator winding with high accuracy and speed. The dynamic response of the generator is also incorporated into the model. The model's accuracy is validated through comparison with results from multiphysics simulation software. Furthermore, this study addresses the limitations of conventional protection methods in detecting TTF and proposes a novel, simple, fast, and accurate protection logic that can be implemented in digital protection relays and is effective across a wide range of TTF scenarios.
A multi‐path residual network for image denoising based on edge prior information
Authors: Bai Xuefei , Wan Yongsong , Wang Weiming 
Published: October 2024

AbstractEdge‐preserving denoising is important in image analysis. However, most existing methods suffer from smoothing and loss of high frequency detail at the edges. Aiming at this issue, a multi‐path residual network using edge prior information is proposed. Specifically, the edge is first recovered by a newly designed parallel edge extraction module. Then it is used as a priori to generate affine transform parameters to guide the weight distribution between noise and edge, so that the shallow feature extraction pays more attention to preserving edges. In the deep feature extraction stage, a multi‐scale attention unit is designed to provide the spatial neighbourhood information of the feature points to filter and activate the deep features, which further enhances the ability of the network to extract fine‐grained noisy features. Finally, by taking the difference between the noisy image and the noise feature obtained with residual learning, the denoised image is produced. Extensive experiments show that the PSNR is improved by 0.00–0.78 dB on grey image denoising and 0.00–2.69 dB on colour image denoising compared with others. The denoised image has a better ability to preserve image edges, high frequency details and visual perception.
Review of the application of drones for smart cities
Authors: Důbravová Hana , Bureš Vladimír , Velfl Lukáš 
Published: October 2024

AbstractIn an area of increasing digitalisation and rapid technological development, information management is becoming essential for the effective functioning of modern organisations and cities. One of the new trends is the gradual expansion and use of drones in parts of the smart cities concept. In security, drones are used to protect public order, monitor traffic in cities and municipalities, and control sub‐activities falling under the competence of police forces. In rescue work, drones allow us to efficiently and quickly manage accidental emergencies in hard‐to‐reach areas. At the same time, in the transport sector, drones have become an important component for the efficient delivery of parcels, reducing overall costs and time savings. This paper systematically overviews the importance of drones in various fields such as security, transportation, rescue operations or parcel delivery. Drones are becoming key elements for public order, crisis management and enhancing the quality of life of citizens in smart cities due to their capabilities of rapid response, monitoring hard‐to‐reach locations and autonomous data collection. Particular attention is then paid to comparing the use of drones in the Czech Republic and abroad and their benefits in the field of innovative technologies that help improve the safety and efficiency of urban services. The article also analyses the technical specifications of drones and their role in the public and private sectors, considering the legislative framework for their use. Overall, the article offers an overview of how drones contribute to integrating modern technologies into the daily functioning of smart cities and improving residents' quality of life.
Posttraumatic Stress Symptoms among Obstetricians with Personal Experience of Birth Trauma
Authors: Whelan Anna R. , Griffin Laurie B. , Russo Melissa L. , Ayala Nina K. , Miller Emily S. , Clark Melissa A. 
Published: October 2024

Objective Psychological birth trauma (BT), defined as an event that occurs during labor and delivery involving actual or threatened harm or death to the pregnant person and/or their baby, has been reported in up to one-third of births. Obstetrician-Gynecologists (OBGYNs) who personally experience BT are at a unique risk of re-traumatization upon return to work. We aimed to investigate the prevalence of personal BT among obstetricians and their perceptions of how personal BT impacts their experience of caring for obstetric patients.
Study Design We performed a web-based survey of OBGYNs who had given birth. Participants were recruited from the “OMG (OBGYN Mom Group)” on Facebook. The questionnaire assessed individuals' personal experience of childbirth using items adapted from the “City Birth Trauma Scale” to assess posttraumatic symptoms related to their childbirth and patient interactions following the personal experience of BT. Responses were categorized by whether or not the participant considered one or more of their own births to be traumatic. Posttraumatic stress symptoms (PTSSs) and symptoms of occupational re-traumatization were compared by reported BT. Bivariable analyses were used.
Results Of the 591 OBGYNs who completed the survey, 180 (30.5%) reported experiencing BT. Ninety-two percent of OBs cared for birthing patients after giving birth. There were no differences in demographic or clinical practice characteristics between those with and without BT. OBGYNs with BT experienced PTSSs including flashbacks (60.6% vs. 14.4%), amnesia (36.7% vs. 20.9%), and insomnia (24.4% vs. 1.2%) at higher rates than those without BT (p < 0.001).
Conclusion Almost one-third of OBGYNs in this sample reported personally experiencing BT, mirroring data from reported BT rates in the general population. Given that OBGYNs are at high risk for occupational re-traumatization, initiatives focused on improving support for birthing OBGYNs upon returning to work should be studied to assess the impact on emotional wellness among practicing OBGYNs.
Key Points
Laboratory Testing for ADAMTS13 for Thrombotic Thrombocytopenia Purpura and Beyond
Authors: Favaloro Emmanuel J. , Pasalic Leonardo , Lippi Giuseppe 
Published: October 2024

AbstractADAMTS13 (a disintegrin and metalloproteinase with a thrombospondin type 1 motif, member 13), also called von Willebrand factor (VWF) cleaving protease, acts as a moderator of VWF activity. ADAMTS13 cleaves VWF multimers, thereby reducing VWF activity in blood. When ADAMTS13 is absent (e.g., in patients with TTP [thrombotic thrombocytopenia purpura]), accumulation of VWF in plasma can occur, particularly as “ultra-large” VWF multimers, with this leading to adverse outcomes such as thrombosis. Relative ADAMTS13 deficiencies also occur in several other conditions, including secondary thrombotic microangiopathies (TMA), cancer, and with severe infections such as in COVID-19 (coronavirus disease 2019). These situations might therefore be accompanied with relative loss of ADAMTS13, thereby potentially also leading to pathological VWF accumulation, with this then generating a prothrombotic milieu, thus contributing to enhance the risk of thrombosis. Laboratory testing for ADAMTS13 can aid in the diagnosis of such disorders (i.e., TTP, TMA), and help guide their management, with testing now accomplished using various assays. As most presentations of TTP reflect an acquired condition due to anti-ADAMTS13 antibodies, there may also be a need to test for these, as this will also influence clinical management. We herein provide an overview of TTP, note other conditions in which low levels of ADAMTS13 may be present, and then detail laboratory testing for both ADAMTS13 and associated inhibitors.
Development of a space-compatible packaging system for an integrated monolithic ultra-stable optical reference
Authors: Zhan Zhenhai , Luo Yingxin , Yeh Hsien-Chi , Li Hongyin , Chen Weilu , Ren Chongzhi , Zeng Bingcheng 
Published: October 2024

We report the development of a space-compatible packaging system for an integrated monolithic ultra-stable optical reference toward China’s next-generation geodesy mission with low orbit satellite-to-satellite tracking. Building on our previous work, we optimized the mounting structure and thermal insulation mechanism using the finite element method. The comprehensive simulation results demonstrated the robustness of the entire packaging system with enough margins to withstand severe launch loads and maintain an ultra-high geometric cavity length stability. A long-term prediction of the vacuum maintenance around the cavity during in-orbit operation was conducted. An engineering prototype, within which an integrated monolithic optical reference has been mounted, was built based on our optimized design, and it has successfully passed typical aerospace environmental tests, including sinusoidal vibration (∼10 g, 10–100 Hz), random vibration (∼0.045 g2/Hz, 10–2000 Hz), and thermal cycling (0–45, 3 °C/min, lasting for 90 h). The experimental thermal time constant of the prototype exceeded 9.5 × 104 s, enabling a temperature stability of 1.1 × 10−6 K/Hz1/2 at 10 mHz on the optical cavity, with external active temperature control. The design is also suitable and useful for laboratory and terrestrial applications.
In-plane orientational motions of the functional groups of molecules at the air/water interface by time-resolved vibrational sum frequency generation
Authors: Huang-Fu Zhi-Chao , Zhang Tong , Brown Jesse B. , Qian Yuqin , Fisher Haley , Rao Yi 
Published: October 2024

The movements of molecules at interfaces and surfaces are restricted by their asymmetric environments, leading to anisotropic orientational motions. In this work, in-plane orientational motions of the –C=O and –CF3 groups of coumarin 153 (C153) at the air/water interface were measured using time-resolved (TR) vibrational sum frequency generation (SFG). The in-plane orientational time constants of the –C=O and –CF3 groups of C153 are found to be 41.5 ± 8.2 and 36.0 ± 4.5 ps. These values are over five-times faster than that of 198 ± 15 ps for the permanent dipole of the whole C153 molecule at the interface, which may indicate that the two groups experience different interfacial friction in the plane. These differences could also be the result of the permanent dipole of C153 being almost five times those of the –C=O and –CF3 groups. The difference in orientational motions reveals the microscopic heterogeneous environment that molecules experience at the interface. While the interfacial dynamics of the two functional groups are similar, our TR-SFG experiments allowed the quantification of the in-plane dynamics of individual functional groups for the first time. Our experimental findings about the interfacial molecular motion have implications for molecular rotations, energy transfer, and charge transfer at material interfaces, photocatalysis interfaces, and biological cell/membrane aqueous interfaces.
Characteristics of an antistatic semiconductor bridge based on micro/nano processing techniques
Authors: Wang Lei , Zhou Bin , Tao Yuren , Wang Jun 
Published: October 2024

Abstract
Regarded as a novel type of igniter, semiconductor bridge (SCB) prove superior in burst time and burst energy (less than 5 mJ). Nevertheless, SCB discharged by strong electrostatic discharge (ESD) inevitably leads to damage. To enhance the electrostatic safety of the SCB initiator, an antistatic semiconductor bridge (ASCB) initiator incorporating a transient suppression (TVS) diode was fabricated based on micro/nan processing techniques. Three sizes of polysilicon bridge (10440 µm2, 17 020 µm2, and 23 760 µm2) and two breakdown voltages of TVS (7.3 V and 8.6 V) were designed. Then constant discharge test and ESD test were carried out to investigate the effects of bridge area and TVS breakdown voltage on the performance of ASCB. The results showed that, the energy density of polysilicon bridge is a linear function of the ratio of the square of the current to the area of the polysilicon (ISCB
2/A). The breakdown voltage will affect the shunt of TVS. During polysilicon heat accumulation process, owing to shunt of TVS, the energy applied to the polysilicon bridge reduced. In addition, the bridge with a larger area were more difficult to reach the explosive limit. Therefore, both the breakdown voltage of the TVS and the area of the polysilicon bridge influenced the explosive characteristics of the ASCB. The antistatic performance of ASCB is obviously stronger than that of SCB, and A2 (ASCB with bridge area of 23 760 µm2 and breakdown voltage of 7.3 V) is the strongest among the three types of ASCB. Reducing the breakdown voltage of TVS and increasing the bridge area of polysilicon can effectively improve the antistatic performance of ASCB.
Aspect ratio-dependent etching in silicon using XeF2: experimental investigation and comparative analysis with dry etching methods
Authors: Baradel Baptiste , Léon Olivier , Méry Fabien , Combette Philippe , Giani Alain 
Published: October 2024

Abstract
Silicon machining plays a crucial role in shaping three-dimensional structures for micro-electro-mechanical systems applications. This study investigates aspect ratio dependent etching (ARDE) across various silicon etching processes, with a particular focus on Xenon Difluoride etching, in comparison to reactive ion etching (RIE) and Deep RIE . By exploring different etching parameters, the study highlights the presence of ARDE in both plasma and non-plasma etching processes. Additionally, it is demonstrated that ARDE can be modeled by a saturating exponential function through experimental adjustment of parameters, enabling the estimation of etching profiles.
Electrohydrodynamic characteristics of a needle-to-ring positive corona discharges: self-consistent modeling and turbulence effects
Authors: Tuan Dung Nguyen , Rogier François , Kourtzanidis Konstantinos 
Published: October 2024

Abstract
We report on the voltage–current characteristics as well as the voltage–velocity characteristics of a needle-to-ring configuration by self-consistent, 2D-axisymmetric, multi-physics plasma-fluid simulations. Parametric studies are performed to investigate the effects of background ionization level on the plasma electrical characteristics as well as turbulence parameters on the resulting flow. Our results show that the discharge and the flow exhibit an annular structure around the needle (anode) tip, with a maximum positive ion density from

1.5
×

10

18

–2.7

×

10

18

m

−
3

and a maximum flow velocity from 10–15

m

s

−
1

, for overvoltages between 4−12

kV

and an anode–cathode distance of 20

mm

. Good overall agreement with experimental findings is achieved, noting that background ionization level can be used as a tuning parameter to better match experimentally measured current values even with a simplified plasma-chemistry. A better agreement between simulation and experiments is achieved concerning the voltage–velocity curves. Therefore, the latter are likely to be better indicators for assessing and validating electrohydrodynamic effects of corona actuators through numerical modeling. The flow dynamics indicate that positive-corona-induced ionic winds are most likely laminar to turbulent transitional flows, with a ratio between eddy viscosity and air viscosity varying between

0
−
200

.
First-principles study of the electron and phonon transport properties in monolayer boron monosulfide
Authors: Song Hong-Yue , Guo Ying , Liu Dandan , Li Meng 
Published: October 2024

Abstract
Motivated by the excellent electronic properties of theoretical proposed monolayer boron monosulfides (BS) binary materials, which belong to a light-element member of the group IIIA chalcogenides family, we have investigated the electron and phonon transport properties of three monolayer phases of BS (α, β and γ) using first-principles and Boltzmann transport theory methods. The calculated electronic structures show that α- and β-BS are semiconductors with indirect bandgaps of 4.01 eV and 3.87 eV, respectively, whereas the γ-BS is a semiconductor with a direct bandgap of 2.97 eV. Additionally, due to their light carrier effective masses, superior high carrier mobilities are observed, thus bringing high Seebeck coefficients. We also find that due to the absence of imaginary phonon frequencies, the three monolayer phases of BS show dynamical stability. The phonon group velocity and relaxation time are also calculated to analyze the phonon thermal conductivity. We find that strong phonon scattering makes γ-BS monolayer possess extremely low phonon thermal conductivity (1.2 and 2.7 Wm−1K−1 along the x and y directions at 300 K, respectively), whereas α- and β-BS monolayers show a relatively high phonon thermal conductivity. Therefore, the highest predicted ZT value of 1.7 (

n

-type) at 700 K is obtained for monolayer γ-BS along the x direction. However, α- and β-BS monolayers have extremely low ZT values. Our results reveal that the γ-BS monolayer has wider promising applications in high performance thermoelectric material than α- and β-BS monolayers.