bluuebunny/crossref_metadata_2025_split huggingface dataset:
Profiling and bioinformatics analysis of differentially expressed circRNAs in endometrium of patients with recurrent implantation failure
Authors: Zhang Lili , Tian Yu , Gao wenxin , Mi Shengyan , Cao Ying , Liu Siming , Yuan Xiaoye , Xie Yuping , Ma Xiaoling , Wang Jing , Liu Lin 
Published: August 2023

Abstract
Background. Circular RNAs (circRNAs) play crucial roles in many human diseases. However, the role of circRNA in recurrent implantation failure (RIF) remains unclear.
Methods. In order to explore the mechanism of circRNAs in RIF, circRNA expression profiling in endometrial tissue from RIF patients was performed by RNA sequencing (RNA-seq). The expression of differently expressed circRNAs (DEcircRNAs) was verified using GEO database.
Results. Significantly differentially expressed 46 circRNAs were identified (fold change (FC) ≥ 2 and p value < 0.05)and subjected to functional enrichment analysis.Among them, 18 circRNAs were up-regulated and 28 were down-regulated. Moreover, ceRNA network was constructed, which contains 10 circRNAs, 30 miRNAs and 104 mRNAs. Key pathways hsa_circ_0001358-hsa-miR-335-3p-SOSC3/MDM2 and hsa_circ_0072697-hsa-miR-3150a-3p-PFN1 axis were found in the ceRNA network.
Conclusions. These two pathways found in the network may provide novel insights to the underlying pathogenesis of RIF and provide new potential molecular targets for subsequent clinical diagnosis and treatment.
Optimization of Birefringence and single channel elliptical PCF polarisation filter based on surface Plasmon resonance using 2D FDTD method
Authors: Nilu Nilambar Muduli , nilu nilambar Muduli , surya JSN Achary 
Published: August 2023

Abstract

Effect on high birefringence gold coated elliptical PCF polarisation filter based on SPR is investigated in details. The proposed elliptical PCF have 3 air hole ring of different dimension arranged in a specific mode potential to gain high birefringence and gold is coated inside the elliptical air holes to generate surface Plasmon’s. A full vectorially 2D FDTD method is applied to analyse the guiding properties of proposed elliptical PCF depending on SPR. By improving the elliptical air hole of different parameter in cladding region, achieve one state of polarisation to propagation through the filter while the other state being attenuated. Beside this, we investigated the confinement loss of x polarised mode of 0.0218 dB/cm and corresponding y polarisation mode of 440.2dB/cm at an operating wavelength of 1.55µm. In addition an extinction ratio of proposed PCF of 330 dB/cm is determined while choosing the proposed PCF filter length being 1mm. The above proposed PCF length is set to 50µm and bandwidth being 300nm which is better than the previous reported literature. Based on above mentioned characteristics; the proposed PCF polarisation filter can be applied in compact and broadband filters in communication arena.
A global perspective and Indian schema of the current spatiotemporal variations and trends in ambient fine particulate pollutants (PM 2.5) concentration
Authors: Gupta Nishant , Agarwal Ashok Kumar , Amari Abdelfattah , Singhal Rajeev , Osman Haitham , Jindal Sanjay Kumar , Ghosh Tathagata , Yadav Virendra Kumar , Kumar Pankaj , Patel Ashish 
Published: August 2023

Abstract
PM2.5 concentration in India is severely high in many cities, especially in the Indo-Gangetic plains. During and after the COVID-19 pandemic, the regional air quality monitoring system has been improved under the new National Clean Air Program (NCAP) but the most concerned pollutant in the country is related to PM2.5. The available data are insufficient to evaluate the stable and post-pandemic air quality condition of India and its improvement The present study comprised data on the PM2.5 average of the last four years (2019 to 2022) from the most selected air monitoring stations of Indian states. Central Pollution Control Board (CPCB), National Air Quality Index (NAQI), Portal for Regulation of Air-pollution in non-Attainment Cities (PRANA), and international air quality databases such as NASA’s GIOVANNI and WHO’s ambient air pollution databases were incorporated to evaluate India’s current worldwide condition and potential reduction in PM2.5 concentration. Yearly athematic averages of the collected data were used to interpret the outcomes. The results suggested that the average concentration of PM2.5 of selected air monitoring stations in the last four years was 91.9 µg/m3 in 2019, 67.15 µg/m3 in 2020, 80.05 µg/m3 in 2021, and 92.65 µg/m3 in 2022. National Capital Delhi showed the highest PM2.5 level followed by North Indian States like Punjab and Rajasthan.
Design and analysis of a lower limb exoskeleton rehabilitation robot based on a series elastic actuator
Authors: ZHAO CHENGLONG , LIU ZHEN , ZHU LIUCUN 
Published: August 2023

Abstract
The aging population is a necessary trend in today's society, and there are increasing applications in everyday services through human-computer interaction, paramedicine and robotics. Lower limb exoskeleton rehabilitation robots have broad application prospects in the fields of enhancing human functions, rehabilitation training, and helping the elderly and disabled. In this paper, we combine the structural characteristics, motion mechanism, and gait characteristics of human lower limbs, bionic design of the exoskeleton mechanical structure, and propose a tandem elastic actuator with passive flexibility, low impedance, and force-controllable characteristics for application with robot joints. The kinematic analysis was carried out by the D-H parameter method, and the kinematic simulation was carried out by Matlab Robotic Toolbox software with the derived D-H parameters, and the fabrication and testing of the solid prototype were completed. The structural design and gait parameters were verified to be reasonable.
Agency of the local community in surface records of a nineteenth-century archaeological site in a rural area of Buenos Aires, Argentine Republic.
Authors: López Mariel Alejandra , Vommaro Miriam Noemí , Lanza María Alejandra 
Published: August 2023

Abstract
This paper presents the methods and techniques used to survey and analyse an archaeological site in the rural area of Buenos Aires Province with a high density of surface waste, and the results obtained relating to its formation and resettlement process between the nineteenth and twenty-first centuries.
The construction that remains standing to date is a typical nineteenth century dwelling. It is situated within what used to be the Old Town of San Vicente, next to the lagoon with the same name, in Buenos Aires Province, Argentine Republic.
The site, identified as San Vicente 3 (SV3), features material surface records that are the product of a true palimpsest: a mixture of archaeological events and old waste from the historical cemetery located in front of the site, and different types of objects and residues resulting from activities carried out by the neighbours that re-occupied the dwelling and moved around its surrounding area throughout the period referred to.
We proposed several tools for studying the site to record the high density and variety of materials and temporalities visible on the surface and determine the presence of different events in its formation.
Sparse Representation Based on Fourier Dictionary
Authors: Xu Huajun , Liu Ziping , Wang Guocheng 
Published: August 2023

Abstract
The purpose of studying the sparse representation of signals is to find the optimal approximation of the atoms of the signal under an over-complete dictionary, in which the characteristics of the atoms that match the signal are the characteristics of the signal. At present, the commonly used dictionaries in research include Fourier dictionary, cosine packet dictionary, wavelet packet dictionary, Chirplet dictionary, etc. However, there is little research on Fourier dictionaries from the point of Fourier transform theory. This paper studies three typical algorithms of sparse representation under Fourier dictionary (matching pursuit algorithm, basis pursuit algorithm and the method of frames), and the simulation results show that: 1) the matching pursuit algorithm can adaptively determine the time-frequency parameters of the signal. 2) The basis pursuit algorithm can enhance the ability to identify coupled harmonics, and the precision of reconstructed harmonics can reach 97%. 3) Implementation effect of the method of frames is consistent with fast discrete Fourier transform.
Quadratic and Lagrange interpolation based butterfly optimization algorithm by for numerical optimization and engineering design problem
Authors: Sharma Sushmita , Saha Apu Kumar , Chakraborty Sanjoy , Deb Suman , Sahoo Saroj Kumar 
Published: August 2023

Abstract
The Butterfly Optimization Algorithm (BOA) is used widely in the field of optimization due to its proven effectiveness. However, the algorithm has certain limitations such as poor exploration-exploitation balance, lack of diversity, and entrapment into local solutions. To overcome these limitations, a new and improved modification of BOA, called LQBOA, is projected, which employs the Lagrange interpolation formula and simple quadratic interpolation technique to improve the searching strategy and achieve a enhanced equilibrium between diversification and intensification. One of the parameter of BOA, switch probability has also been adaptively adjusted within a specified range, which enables initial exploration of the domain and later exploitation to obtain the global optima. The performance of LQBOA has been evaluated on forty-five classical benchmark problems and IEEE CEC 2017 benchmark suite. The simulation results have judged against that of several state-of-the-art algorithms, and statistical tests such as the Friedman rank test and Wilcoxon rank test have been conducted to justify the rank and significance of the proposed LQBOA. Additionally, convergence and diversity analysis have been carried out to study its searching behaviour.Furthermore, LQBOA has successfully applied to solve eight real-world engineering design problems. The results have been compared with various state-of-the-art algorithms, which demonstrate superior performance of LQBOA with improved exploration-exploitation balance, diversity, and avoidance of local optima. In conclusion, LQBOA represents a significant contribution to the optimization field, and its use could significantly improve the performance of various optimization tasks.
Finnish SQuAD: A Simple Approach to Machine Translation of Span Annotations
Authors: Nuutinen Emil , Rastas Iiro , Ginter Filip 
Published: August 2023

Abstract

We apply a simple method to machine translate datasets with span-level annotation using the DeepL MT service and its ability to translate formatted documents. Using this method, we produce a Finnish version of the SQuAD2.0 question answering dataset and train QA retriever models on this new dataset. We evaluate the quality of the dataset and more generally the MT method through direct evaluation, indirect comparison to other similar datasets, a backtranslation experiment, as well as through the performance of downstream trained QA models. In all these evaluations, we find that the method of transfer is not only simple to use but produces consistently better translated data. Given its good performance on the SQuAD dataset, it is likely the method can be used to translate other similar span-annotated datasets for other tasks and languages as well. All code and data is available under an open license: data at HuggingFace TurkuNLP/squad\_v2\_fi, code on GitHub TurkuNLP/squad2-fi, and model at HuggingFace TurkuNLP/bert-base-finnish-cased-squad2.
Effect of Delayed Scanning and Scanning Resolution Using Photostimulable Phosphor Plates On Detection of Vertical Root Fracture
Authors: Professor Elifhan ALAGOZ DMD Assistant , Professor Tugba PhD Assistant , Professor Aysegul YABACI PhD Assistant , Professor Serife OZD PhD Associate 
Published: August 2023

Abstract

Objectives
Detecting vertical root fractures(VRFs) can be challenging in dentistry due to their subtle and often concealed nature.This study aimed to assess the impact of varying resolutions and delayed scanning times of PSP plates on the diagnosis of VRFs. Can different resolutions and/or delayed scan times enhance the diagnosis of VRFs?
Materials and Methods
Forty extracted single-rooted premolar teeth were utilized. The crowns of all teeth were removed, and root canals were prepared.The teeth were divided into two groups:20 study teeth with VRFs and 20 teeth without VRFs. VRFs were created using an Instron machine. All tooth roots were positioned in the premolar region of a dry human mandible. Subsequently, periapical radiographs were taken using a parallel technique. Radiographs were scanned at four different times post-exposure:immediately, 30 minutes later, 2 hours later, and 4 hours later, and at three different resolutions:high speed, high resolution, and super high resolution.Statistical analyses were conducted using IBM SPSS Statistics 26.0.
Results
Intra- and interobserver agreement exhibited substantial to almost perfect ranges of agreement. Statistically significant differences were not observed in the diagnosis of VRFs when comparing different resolutions and scanning times.
Conclusions
Varying resolutions and/or delayed scan times did not improve the diagnosis of VRFs. In clinical practice, a comprehensive detection of VRFs might necessitate a combination of different imaging techniques, incorporation of artificial intelligence technology, and clinical assessment.
Clinical Relevance:
Engaging with an oral and maxillofacial radiologist or endodontist and taking into consideration their expertise and clinical judgment can prove to be advantageous for achieving precise diagnosis and effective treatment planning.
Does the Mindful Mind Wander? The Underlying Role of Self-compassion and Grit
Authors: Cheung Rebecca Y. M. , Djekou Lemuela 
Published: August 2023

Abstract
Previous research suggests that mindfulness and mind wandering are opposing constructs. However, little is known about why and how they are negatively related. Through a process-oriented approach, this study tested self-compassion and grit as mediators for the relation between mindfulness and mind wandering. A total of 487 meditators were recruited from the UK (241 female, 49.49%). Participants reported a mean age of 38.98 years (SD = 10.03), with an average of 2.26 hours of meditation practice per week (SD = 4.47). Upon informed consent, the participants completed a self-report questionnaire that assessed the core variables under study. A path model was conducted to investigate the mediation model. The path model revealed that mindfulness was related to self-compassion. Greater self-compassion was, in turn, related to greater grit, which was then related to lower mind wandering. Bootstrapping analysis further indicated that self-compassion and grit were mediators between mindfulness and mind wandering, above and beyond age, gender, and hours of meditation as covariates. This study revealed self-compassion and grit as mediators for the relation between mindfulness and mind wandering. These findings provided new evidence by showing the initial mechanisms between mindfulness and mind wandering.
Research on Turbine Speed Control Method Based on Flow Characteristics of Governing Valve
Authors: Wang Jiasheng , Ding Mingliang , Wang Suobing , Xie Deyong , Xiang Shang 
Published: August 2023

Abstract

Studies show that there are inherent lower rotor time constants at high-parameter and large-capacity thermal power units, which leads to poor rotational speed stability under traditional control methods in complicated power grid structures and operating conditions. Moreover, it is prone to induce various safety accidents. Based on the current development trend of steam turbines in China, this paper analyzes the theories of rotational speed instability under special conditions as the incompatibility between the unit’s inherent characteristics and the commonly used control idea. In this regard, a series of speed control ideas are proposed based on the flow characteristic of governing valve. Through analysis and comparison of several typical operating conditions and events, theoretical modeling, practical tests, and simulation identification, the theoretical analysis was verified. Flow characteristic curves of the governing valve and optimized strategies such as targeted control strategies and optimized operating procedures were adopted, and promising results were achieved in terms of safety and economy.
Comparison of Surgical Site Infections, Operative Outcomes and Scar Assessment in Gunsight Closure Technique versus Linear Closure for Stoma Reversal- A Randomized Clinical Trial
Authors: Tandup Cherring , Thakur Vipul , Sahu Swapnesh , Mehta Jay , Kaman Lileswar , Dahiya Divya , Jayant Divij , Khare Siddhant , Sakaray Yashwanth Raj , Thakur Manish , Satish S. N. , Babu Basil , Goyal Mrinal 
Published: August 2023

Abstract
Purpose
Stoma closure is associated with an increased risk of surgical site infection (SSI) and poor cosmetic scar. The incidence of SSI depends on the skin closure technique, the ideal stoma-site skin closure technique is still debated. The aim of this study was to compare the rate of SSI and scar assessment following the gunsight closure technique (GCT) and the linear closure technique (LC).
Methods
In this randomized clinical trial, 75 patients were enrolled who underwent stoma closure between November 2021 and April 2023. Patients were divided into two groups according to the skin closure technique, GCT (n = 41) and LC (n = 34). The incidence of SSI, readmission rates, length of hospital stays, and patients' scar satisfaction scores were compared.
Results
The two groups were similar in baseline and intra-operative characteristics, six (14.6%) patients in GCT group and 10 (29.4%) in the LC group developed SSI, and the difference was not significant. The length of hospital stay was significantly shorter in the GCT group (6.29 ± 2.43). Four patients were readmitted for SSI in LC group and none in the GCT group (p = 0.038). Patients in the GCT group were more satisfied with the scar at one month intervals based on the patient and observer scar assessment scale (POSAS).
Conclusion
GCT was associated with a lower incidence of SSI, a significant decrease in length of hospital stay, and a lower 90 days readmission rate for SSI as compared to LC. The cosmetic outcome was significantly more acceptable after GCT.
Toward enhanced decentralized palliative care services in Neno District, Malawi. A qualitative study
Authors: Phiri Atupere Sikanda. , Mulwafu Manuel , Zaniku Haules Robbins , Aron Moses Banda , Kanyema Judith , Chibvunde Stellar , Ndarama Enoch , Momba Grace , Munyaneza Fabien , Thambo Lameck , Kachimanga Chiyembekezo , Matanje Beatrice 
Published: August 2023

Abstract
Background:
Palliative care is a method that enhances the well-being of patients, both adults and children and their families who are dealing with life-threatening diseases. Its goal is to alleviate and prevent suffering by identifying and treating pain and other problems, whether physical, emotional, or spiritual, as early as possible. We document the results of a qualitative research study that assessed the impact of decentralising palliative care services to peripheral health facilities in Neno District, Malawi.
Methods:
We conducted a qualitative study between November 2021 and June 2022 in Neno district, southern Malawi. We conveniently selected two facilities where palliative care services had been decentralized and conducted two Focus Group Discussions (FGDs) with all 14 healthcare workers and three with 15 patients receiving the services. We transcribed the recordings of FGDs and applied thematic analysis to analyse the data.
Results:
We identified four key themes: (1) patient experience with medical personnel: participants described the development of rapport and trust with the healthcare system over time, (2) perceived benefits of palliative care programme decentralisation: participants recognized and emphasised improved accessibility of services, resulting in better patient outcomes and increased satisfaction, (3) challenges in accessing palliative care services: participants shared personal experiences and identified obstacles faced when seeking palliative care; and (4) facility responsiveness to patient needs: participants appreciated the step-by-step care processes, additional support beyond medical assistance, and timely coordination of services. They highlighted the presence of follow-up mechanisms that ensured ongoing support and addressed their evolving needs.
Conclusions:
Our study demonstrated that the decentralization of palliative care services has provided effective delivery of quality care that patients appreciate. This information can be used by program planners, resource allocators, and implementers to improve service delivery in remote facilities. However, more research is needed to explore the impact of demographic and socioeconomic characteristics of patients and distance to health facilities on palliative care services.
Better functional recovery after acute stroke in elderly patients managed in a new dedicated post-stroke geriatric unit compared to usual management
Authors: OQUENDO Bruno , Charlotte NOUHAUD , Witold JARZEBOWSKI , Anne LEGER , Christel OASI , Carmelo LAFUENTE-LAFUENTE , Joel BELMIN 
Published: August 2023

Abstract
Objectives : A Stroke care Pathway dedicated to the ELderly (SPEL) patients with acute stroke was created in 2013 at the hospitals Pitié-Salpêtrière-Charles Foix (Paris, France). It is characterized by a stroke unit dedicated to emergency stroke care, and a post stroke geriatric unit (PSGU) including rehabilitation and management of geriatric syndromes. The aim of the study was to compare the functional recovery of patients transferred to PSGU versus other rehabilitation care in patients over 70 years of age after stroke.
Design: A cohort observational study over a 3.5-year period
Setting: Hospitals Pitié-Salpêtrière and Charles Foix (Paris, France)
Participants: We studied consecutive patients >70 years admitted to the participating stroke unit for acute stroke.
Intervention: Patients transferred in the PSGU were compared to those admitted in other rehabilitation units.
Measurements: The primary outcome was 3-month functional recovery after stroke. The secondary outcomes were the hospital length of stay and the returning home rate. A multivariable logistic regression was applied to adjust for confounding variables (age, sex, NIHSS score and Charlson’s comorbidity score).
Results: Among the 262 patients included in the study, those in the PGSU were significantly older, had a higher Charlson’s comorbidity score and a higher initial NIHSS severity score. As compared to the other patients, functional recovery at 3 months was better in the PSGU (Rankin's score decreased by 0.80 points versus 0.41 points, p = 0.01). The average total length of stay was reduced by 16 days in the patients referred to the PSGU (p = 0.002). There was no significant difference in the returning home rate between the two groups (p = 0.88).
Conclusion: The SPEL which includes a post-stroke geriatric unit (PSGU) has been associated with improved recovery and had a positive impact in the management of older post-stroke patients.
Symmetry Broken Vectorial Kerr Frequency Combs from Fabry-Pérot Resonators
Authors: Hill Lewis , Hirmer Eva-Maria , Campbell Graeme , Bi Toby , Ghosh Alekhya , Del'Haye Pascal , Oppo Gian-Luca 
Published: August 2023

Abstract
Optical frequency combs find many applications in metrology, frequency standards, communications and photonic devices. We consider field polarization properties and describe a vector comb generation through the spontaneous symmetry breaking of temporal cavity solitons within coherently driven, passive, Fabry-Pérot cavities with Kerr nonlinearity. Global coupling effects due to the interactions of counter-propagating light restrict the maximum number of soliton pairs within the cavity - even down to a single soliton pair - and force long range polarization conformity in trains of vector solitons.