bluuebunny/crossref_metadata_2025_split huggingface dataset:
SA‐FlowNet: Event‐based self‐attention optical flow estimation with spiking‐analogue neural networks
Authors: Yang Fan , Su Li , Zhao Jinxiu , Chen Xuena , Wang Xiangyu , Jiang Na , Hu Quan 
Published: May 2023

AbstractInspired by biological vision mechanism, event‐based cameras have been developed to capture continuous object motion and detect brightness changes independently and asynchronously, which overcome the limitations of traditional frame‐based cameras. Complementarily, spiking neural networks (SNNs) offer asynchronous computations and exploit the inherent sparseness of spatio‐temporal events. Notably, event‐based pixel‐wise optical flow estimations calculate the positions and relationships of objects in adjacent frames; however, as event camera outputs are sparse and uneven, dense scene information is difficult to generate and the local receptive fields of the neural network also lead to poor moving objects tracking. To address these issues, an improved event‐based self‐attention optical flow estimation network (SA‐FlowNet) that independently uses criss‐cross and temporal self‐attention mechanisms, directly capturing long‐range dependencies and efficiently extracting the temporal and spatial features from the event streams is proposed. In the former mechanism, a cross‐domain attention scheme dynamically fusing the temporal‐spatial features is introduced. The proposed network adopts a spiking‐analogue neural network architecture using an end‐to‐end learning method and gains significant computational energy benefits especially for SNNs. The state‐of‐the‐art results of the error rate for optical flow prediction on the Multi‐Vehicle Stereo Event Camera (MVSEC) dataset compared with the current SNN‐based approaches is demonstrated.
Robust registration of aerial and close‐range photogrammetric point clouds using visual context features and scale consistency
Authors: Chu Guanghan , Fan Dazhao , Dong Yang , Ji Song , Gu Linyu , Li Dongzi , Zhang Wu 
Published: May 2023

AbstractPoint cloud registration is of great significance to the reconstruction of high‐precision 3D city models. There are some challenges when aligning aerial and close‐range photogrammetric point clouds, such as huge view differences caused by the different sights of the sensors, massive noisy points due to the error in dense matching, and scale uncertainty since there are no control points for absolute orientation. To achieve complementary advantages of aerial and close‐range point clouds, in this paper, a robust cross‐source point clouds registration method is proposed using image visual context features and scale consistency. First, a cross‐view image matching method based on image visual context features is proposed to obtain corresponding points. Second, to overcome the challenges of noisy points and scale differences, an outlier filtering method is designed based on scale consistency. Finally, the dual quaternions model considering the scale factor is introduced to solve the spatial transformation model. To analyze the feasibility of this method qualitatively and quantitatively, experiments are conducted using the public scene dataset of Dortmund, Germany, and the scene dataset of Zhengzhou City, China. Three kinds of cross‐source point clouds registration experiments are conducted in this paper, including aerial and close‐range point clouds registration in Dortmund, and aerial and ground point clouds registrations in both Dortmund and Zhengzhou. The chamfer distances of the three sets of experiments are 4.48 m, 5.97 m and 4.78 m, respectively. The ablation study shows that the outlier filtering method and the dual quaternions model improve the accuracy by at least 14% and 25%, respectively. The experiments demonstrate that the method accomplishes the cross‐source point clouds registration in large‐scale scenes accurately and efficiently, providing a solid foundation for subsequent fine 3D reconstruction.
Reopenable clip-over-the-line method for closing large mucosal defects following colorectal endoscopic submucosal dissection: A feasibility study
Authors: Nomura Tatsuma , Sugimoto Shinya , Temma Taishi , Oyamada Jun , Ito Keiichi , Kamei Akira 
Published: May 2023

Abstract
Background and study aims Complete closure of large defects after
colorectal endoscopic submucosal dissection (ESD) can be problematic, especially in
challenging areas or lesions larger than half the lumen circumference. We report a reopenable
clip-over-the-line method for such defects and aim to investigate its feasibility through a
case series.
Patients and methods We retrospectively evaluated data from 30
consecutive patients who underwent ESD with defect closure using the reopenable
clip-over-the-line method between October 2020 and September 2022. This method requires the
first clip-with-line grasp of the oral side's defect edge and muscle layer. The next
reopenable clip (with a line fed through a hole in the reopenable clip tooth) is placed on the
opposing mucosal defect edge and muscle layer. This process is repeated until complete
closure. The primary study outcome was the rate of complete mucosal defect closure. We also
reported post-procedure bleeding or perforation.
Results The median dimensions of the resected specimens were 45
mm (range, 35–70) by 39 mm (range, 29–60). Complete closure was achieved for all defects,
including nine rectal defects, of which three bordered the anal verge. Of the 30 defects
included in this study, nine were larger than half the lumen circumference. The median closure
time was 25 minutes (range, 14–52), and the median clip number was 17 (range, 9–42). No
post-procedure bleeding or perforation occurred.
Conclusions The reopenable clip-over-the-line method is a
feasible technique for the complete closure of large colorectal defects after endoscopic
submucosal dissection, regardless of location.
Impact of the COVID-19 Pandemic on Pediatric Surgical Scientific Formats: An ERNICA Survey on Challenges and Future Directions
Authors: Aubert Ophelia , Gosemann Jan-Hendrik , Wijnen René , Lacher Martin , Ure Benno , Madadi-Sanjani Omid 
Published: May 2023

Abstract
Introduction The aims of this survey were to assess the experiences of the transition from in-person to virtual meetings among European pediatric surgeons since the beginning of the coronavirus disease 2019 (COVID-19) pandemic and to identify preferences for future formats.
Materials and Methods An online questionnaire was circulated among members of the European Reference Network for rare Inherited and Congenital Anomalies Network (ERNICA) in 2022. Two time periods were compared (3 years before the COVID-19 pandemic vs. the year 2021).
Results A total of 87 pediatric surgeons from 16 countries completed the survey. In addition, 27% of respondents were trainees/residents and 73% consultants/lead surgeons. Consultants participated in significantly more in-person congresses prior to the COVID-19 pandemic compared with trainees (5.2 vs. 1.9; p < 0.001). A significant increase in attendance of virtual meeting was reported during 2021 compared with pre-COVID-19 (1.4 vs. 6.7; p < 0.001). Consultants had experienced significantly less absenteeism thanks to virtual meetings compared with trainees (42/61 vs. 8/23; p < 0.05). Most surgeons considered virtual meetings more economic (82%), practical (78%), and family-friendly (66%). However, a majority reported missing social events (78%). The communication among attendees or between attendees and speakers or scientific faculty was deemed worse. A minority (14%) experienced equalized representation of trainees and consultants at virtual meetings. Most respondents (58%) agreed that future meeting strategies should focus on offering virtual formats. Regarding future congresses, respondents prefer hybrid (62%) over in-person (33%) or virtual (6%) formats.
Conclusion According to European pediatric surgeons, virtual learning formats hold multiple advantages and should be continued. Improved technology must meet the challenges, particularly to enhance communication, equal representation, and networking between attendees.
Nursing Perspective of Providing Palliative Care to the Children—A Narrative Review
Authors: Agrawal Uma Shanker , Sarin Jyoti , Garg Rakesh 
Published: May 2023

Abstract
Introduction Palliative care of children (PCC) is a philosophical and a structured approach to providing tailored care to children with life-threatening diseases. Understanding the role of nurses and empowering them to take up the role of palliative care nurse are imperative to strengthen these services and make the palliative care services more accessible to the patients.
Method The literature search was done in two database, PubMed and Scopus, using keyword and Medical Subject Headings (MeSH) terms such as children, palliative care, end of life, hospice, bereavement, and nursing. Records were screened by authors and relevant articles were included in the review.
Discussion PCC should start with the diagnosis of the illness continue through all the phases of illness. Bereavement support to the family is also a part of palliative care. Nurses are in a key position to play important role in the PCC team. Nurses play various roles such as direct care provider, communicator, patient advocate, respite nurse, and counselor.
Conclusion PCC is aimed to improve the quality of life of the child and family. It is crucial to achieving universal health coverage. Role of nurse is vital in providing PCC.
Preoperative Depression is Not Associated with Inferior Outcomes following Total Hip Arthroplasty
Authors: Byrne Connor T. , Durst Caleb R. , Rezzadeh Kevin T. , Rockov Zachary A. , Lee Anderson , McKelvey Karma S. , Spitzer Andrew I. , Rajaee Sean S. 
Published: May 2023

AbstractPreexisting depression negatively impacts outcomes following total hip arthroplasty (THA). Patient-Reported Outcomes Measurement Information System (PROMIS) surveys are validated measures which quantify depression, pain, and physical function. We hypothesized that higher levels of preoperative PROMIS depression scores were associated with inferior outcomes following THA. A total of 247 patients underwent primary THA at the same institution by three arthroplasty surgeons between June 2018 and August 2020. PROMIS scores were collected preoperatively and at 6 weeks, 3 months, and 1 year postoperatively. Patients with preoperative PROMIS depression scores of 55 or more were considered depressed. The primary outcome measures were changes in PROMIS scores over time. Secondary outcomes were total morphine milligram equivalent (TME) and mean morphine equivalents per day (MME) received during admission, 90-day emergency room visits and hospital readmissions, and revisions within 2 years. Seventy-eight patients had preoperative PROMIS depression scores of 55 (PD) or more and 169 were not depressed (ND). PD patients were younger (PD: 62.0 [14.3] vs. ND: 66 [11.7], p = 0.028) at time of surgery and had higher TME (PD: 211.5 [320.9] vs. ND: 161.5 [375.9], p = 0.022) and MME (PD: 78.0 [71.6] vs. ND: 59.1 [67.3], p = 0.005) usage during hospitalization compared to ND patients. PD patients had higher preoperative PROMIS scores for pain (p < 0.001) and lower scores for function (p < 0.004). PD patients had improved PROMIS depression scores at all follow-up intervals (p < 0.01). All other changes in PROMIS pain and function scores were not different between groups. There were no significant differences in readmission rates or patients requiring revisions. Preoperative PROMIS depression scores of 55 or more do not negatively impact postoperative function, depression, or pain following THA, and are associated with greater improvement in depression. There also is not a higher rate of revisions or readmissions.
A Rare Case of Microduplication on Chromosome 13 Detected as High Risk for Trisomy 13 on NIPT Screening
Authors: Murarka Shiva , Kotecha Udhaya , Pamnani Dirgha , Shah Parth , Sharda Sheetal 
Published: May 2023

AbstractNoninvasive prenatal testing (NIPT) has revolutionized the screening methods for fetal chromosomal aneuploidies with high utility for aneuploidies for common chromosomes 13,18, 21, X and Y. Trisomy 13 is often associated with major and minor fetal malformations and can be screened by antenatal fetal scan and first- and second-trimester biochemical screening. We describe a case with high risk for trisomy 13 on NIPT, but without any fetal abnormalities on fetal scan. As recommended, follow-up invasive testing of amniotic fluid by chromosomal microarray detected a microduplication on chromosome 13, which has been associated with congenital microcoria. This case demonstrates the high sensitivity and clinical utility of NIPT in detecting rare copy number variations, which can assist families in making informed reproductive decisions. This also emphasizes that all screen positive NIPT cases should be confirmed with an appropriate diagnostic test by an invasive method.
The times are they a-changin’? Tracking sovereign wealth funds’ sustainable investing
Authors: Bortolotti Bernardo , Loss Giacomo , van Zwieten Robert W. 
Published: May 2023

AbstractThis paper analyzes the orientation towards sustainable investment by global sovereign wealth funds (henceforth SWFs) over the last two decades. Our data analysis reveals that over the last 5 years, there has been a noticeable uptick in investing along the Sustainable Development Goals (henceforth SDGs) by SWFs. From 2018 onwards, momentum has been building in climate and energy, especially in deal value. We also see agriculture come to the fore in 2020, and to a lesser degree, investments in education, as SWFs appear to extend their investment remits slowly but surely into other long-term investment themes. The paper also provides preliminary descriptive evidence about the drivers of sovereign sustainable investment, showing that the presence of explicit environmental, social, and governance (henceforth ESG) policies in place favor capital deployment aligned with SDGs. Finally, the paper studies the ESG performance of a sub-sample of listed firms that SWFs have invested in, finding a significant deterioration in the governance pillar. This result is broadly consistent with previous research on the agency costs of sovereign ownership. The paper concludes by making policy recommendations regarding fiduciary duty, investee corporate governance, and climate investments, which would contribute to modernizing the role of SWFs in the global economy.
Shock standards Cu, Ag, Ir, and Pt in a wide pressure range
Authors: Burakovsky Leonid , Preston Dean L. , Ramsey Scott D. , Starrett Charles E. , Baty Roy S. 
Published: May 2023

Although they are polymorphic (multiphase) materials, both copper and silver are reliable Hugoniot standards, and thus it is necessary to establish an accurate analytic model of their principal Hugoniots. Here we present analytic forms of their principal Hugoniots, as well as those of iridium and platinum, two “pusher” standards for shock-ramp experiments, over a wide range of pressures. They are based on our new analytic model of the principal Hugoniot [Burakovsky et al., J. Appl. Phys. 132, 215109 (2022)]. Comparison of the four Hugoniots with experimental and independent theoretical data (such data exist to very high pressures for both copper and silver) demonstrates excellent agreement. Hence, the new model for copper and silver can be considered as providing the corresponding Hugoniot standards over a wide pressure range. We also suggest an approach for calculating the Grüneisen parameter along the Hugoniot and apply it to copper as a prototype, and our results appear to be in good agreement with the available data.
High-temperature reactivity of vanadium oxide clusters in methane activation: Vibrational degrees of freedom matter
Authors: Ruan Man , Zhao Yan-Xia , Wei Gong-Ping , He Sheng-Gui 
Published: May 2023

Understanding the properties of small particles working under high-temperature conditions at the atomistic scale is imperative for exact control of related processes, but it is quite challenging to achieve experimentally. Herein, benefitting from state-of-the-art mass spectrometry and by using our newly designed high-temperature reactor, the activity of atomically precise particles of negatively charged vanadium oxide clusters toward hydrogen atom abstraction (HAA) from methane, the most stable alkane molecule, has been measured at elevated temperatures up to 873 K. We discovered the positive correlation between the reaction rate and cluster size that larger clusters possessing greater vibrational degrees of freedom can carry more vibrational energies to enhance the HAA reactivity at high temperature, in contrast with the electronic and geometric issues that control the activity at room temperature. This finding opens up a new dimension, vibrational degrees of freedom, for the simulation or design of particle reactions under high-temperature conditions.
A miniature longitudinal-bending hybrid linear ultrasonic motor inspired by the planar hinged five bar mechanism
Authors: Bi Weipeng , Fan Pingqing , Wang Yansong , Ma Xipei , Zhou Jianpeng 
Published: May 2023

Inspired by the double crank planar hinged five bar mechanism, a longitudinal–bending hybrid linear ultrasonic motor with compact miniature is proposed and tested. In order to realize miniaturization, it adopts a bonded-type structure. Four lead zirconate titanate (PZT) piezoelectric ceramics are distributed equally into two groups and bonded to the two ends of the metal frame, and then, two voltages with a phase difference of 90° are applied to each of the two groups of PZT ceramics. Subsequently, the first-order longitudinal vibration and second-order bending vibration generated by the motor combine with each other at the tip of the driving foot to form an elliptical motion trajectory. According to the theoretical kinematic analysis of the free beam, the initial structural dimensions of the motor were designed. Then, the initial dimensions of the motor were optimized, and the zero-order optimization algorithm was used to achieve the purpose of longitudinal and bending resonance of the motor, and finally, the optimal dimensions of the motor were obtained. A prototype of the designed motor was made, followed by experimental tests on the performance of the prototype, including mechanical output. The maximum motor speed without load at 69.4 kHz is 134.57 mm s−1. Under 200 Vpp voltage and 6 N preload, the output thrust of the motor is about 0.4 N at the maximum. The actual mass of the motor is about 1.6 g; therefore, the thrust-to-weight ratio was calculated as 25.
Time to analgesia for musculoskeletal presentations in Tasmanian emergency departments: a case-controlled comparative observational study investigating the impact of advanced practice physiotherapists
Authors: Jovic David , Tuckerman Kirby , Bergenroth Claire , Tran Viet 
Published: May 2023

Objective To assess the timeliness of analgesia provided to patients presenting with musculoskeletal conditions, by advanced practice physiotherapists, medical officers and nurse practitioners in two Tasmanian emergency departments. Methods A retrospective case-controlled comparative observational study collected patient data over a 6 month period. Index cases were consecutive cases treated by an advanced practice physiotherapist, with a medical and nurse practitioner cohort case-matched based on clinical and demographic factors. Time to analgesia from initial triage and time to analgesia from patient allocation to health professional groups were analysed using Mann–Whitney U-test. Further assessment comparing between-group differences in access to analgesia within 30 and 60 min of emergency department triage was included. Results Two hundred and twenty-four patients who received analgesia while in the primary care of advanced practice physiotherapists were matched against 308 others. Median time to analgesia for the advanced practice physiotherapy group was 40.5 min compared with 59 min in the comparison group (P = 0.001). Allocation to analgesia time for the advanced practice physiotherapy group was 27 min, compared with 30 min in the comparison group (P = 0.465). Access to analgesia within 30 min of presentation to the emergency department is low (36.1% vs 30.8%, P = 0.175). Conclusion For musculoskeletal presentations in two Tasmanian emergency departments, patients received more timely analgesia when in the care of an advanced practice physiotherapist compared with medical or nurse practitioner care. Further improvements in analgesia access are possible, with time from allocation to analgesia a potential target for intervention.
Obstacles in establishing a national disease registry in Australia: lessons from the development of the CHAANZ Congenital Heart Disease Registry
Authors: Lloyd Larissa K. , Nasir Reeja , Nicholson Calum , Strange Geoff , Celermajer David S. 
Published: May 2023

Objectives To provide insights into the obstacles which pose challenges to the set-up of any National Registry in Australia. Methods An analysis of our experience in executing a Multi-Institutional Agreement (MIA) and obtaining ethics and governance approvals, post-award of a large Medical Research Futures Fund grant in June 2020. Results From July 2020, our timeline to an executed MIA was 283 days, despite full-time staff working towards this goal. Subsequently, after lead site ethics approval, time to site governance approvals ranged from 9 to 291 days. A total of 214 emails were sent during the MIA development and signing. There were 11–71 emails sent to individual governance offices and the number of requested points of additional information ranged from 0 to 31 queries. Conclusions There were considerable time delays in executing the initial (pre-research) stages of a National Federal Government funded Registry project which required substantial time and resources. We report a wide variation in requirements between different states and institutions. We propose several strategies which could be implemented to facilitate a more streamlined approach to research ethics and governance. This centralised approach would allow for better use of funding and facilitate better progress in medical research.
Traducir literatura africana poscolonial
Authors: Fernández-Ruiz María Remedios 
Published: May 2023

Resumen
Se aprecia un interés creciente por la literatura africana en España, como demuestran los resultados extraídos de
la base de datos bibliográfica especializada BDAFRICA. La literatura poscolonial presenta unos rasgos característicos de los que
no siempre son conscientes las editoriales, que a menudo encargan la traducción de estos textos a profesionales no especializados
(Fernández Ruiz et al. 2019). Con esta idea en mente, atenderemos aquí a las
características propias de la literatura poscolonial y a las peculiaridades de su traducción. Para ello, utilizaremos los ejemplos
de traducción que nos proporciona el relato “Miedo y asco a salir de Harare” del escritor zimbabuense Dambudzo Marechera (en
La casa del hambre, publicado por la editorial Sajalín en 2014).
El método de traducción utilizado es heredero del giro político (Tymoczko y
Gentzler 2002) y del giro sociológico (Wolf 2009), abogando
por utilizar la traducción como herramienta descolonizadora del texto. Como resultado obtenemos un texto meta marcado por la
ausencia de paratextos, que responde a una estrategia de extranjerización para evitar silenciar los rasgos africanos que ha
decidido introducir el autor. Con ello, pretendemos contribuir a la sensibilización de los traductores de textos poscoloniales y
dejar atrás la violencia epistémica ejercida sobre estas obras literarias en el pasado.