bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Blanco DECam Bulge Survey (BDBS)
Authors: Marchetti Tommaso , Joyce Meridith , Johnson Christian I. , Rich R. Michael , Clarkson William , Kunder Andrea , Simion Iulia T. , Pilachowski Catherine A. 
Published: November 2023

Context. The inner Galaxy is a complex environment, and the relative contributions of different formation scenarios to its observed morphology and stellar properties are still debated. The different components are expected to have different spatial, kinematic, and metallicity distributions, and a combination of photometric, spectroscopic, and astrometric large-scale surveys is needed to study the formation and evolution of the Galactic bulge.
Aims. The Blanco DECam Bulge Survey (BDBS) provides near-ultraviolet to near-infrared photometry for approximately 250 million unique stars over more than 200 square degrees of the southern Galactic bulge. By combining BDBS photometry with the latest Gaia astrometry, we aim to characterize the chemodynamics of red clump stars across the BDBS footprint using an unprecedented sample size and sky coverage.
Methods. Our field of view of interest is |ℓ| ≤ 10°, −10° ≤b ≤ −3°. We constructed a sample of approximately 2.3 million red clump giants in the bulge with photometric metallicities, BDBS photometric distances, and proper motions. Photometric metallicities are derived from a (u − i)0 versus [Fe/H] relation; astrometry, including precise proper motions, is from the third data release (DR3) of the ESA satellite Gaia. We studied the kinematics of the red clump stars as a function of sky position and metallicity by investigating proper-motion rotation curves, velocity dispersions, and proper-motion correlations across the southern Galactic bulge.
Results. By binning our sample into eight metallicity bins in the range of −1.5 dex < [Fe/H] < +1 dex, we find that metal-poor red clump stars exhibit lower rotation amplitudes, at ∼29 km s−1 kpc−1. The peak of the angular velocity is ∼39 km s−1 kpc−1 for [Fe/H] ∼ −0.2 dex, exhibiting declining rotation at higher [Fe/H]. The velocity dispersion is higher for metal-poor stars, while metal-rich stars show a steeper gradient with Galactic latitude, with a maximum dispersion at low latitudes along the bulge minor axis. Only metal-rich stars ([Fe/H] ≳ −0.5 dex) show clear signatures of the bar in their kinematics, while the metal-poor population exhibits isotropic motions with an axisymmetric pattern around Galactic longitude ℓ = 0.
Conclusions. This work describes the largest sample of bulge stars with distance, metallicity, and astrometry reported to date, and shows clear kinematic differences with metallicity. The global kinematics over the bulge agrees with earlier studies. However, we see striking changes with increasing metallicity, and, for the first time, kinematic differences for stars with [Fe/H]>  − 0.5, suggesting that the bar itself may have kinematics that depends on metallicity.
Similar additional frequency patterns on fundamental- and overtone-mode RR Lyrae stars showing f68 frequencies
Authors: Benkő József M. , Kovács Gábor B. 
Published: November 2023

Context. Until now, it has been accepted that the additional frequencies in the fundamental-(RRab) and overtone-mode pulsating (RRc and RRd) RR Lyrae stars are of a different nature. RRab stars show frequencies associated with periodic doubling, as well as frequencies at the first and second radial overtones, and linear combinations of these. RRc stars show frequencies with specific ratios (f1/fx ∼ 0.61 or ∼0.63), which are explained by non-radial modes, and frequencies with a ratio of fx/f1 ∼ 0.68, for which there is currently no accepted explanation.
Aims. To search for similarities in spectral content, we compared the recently published Fourier spectra of TESS and K2 RRc stars with the spectra of Kepler RRab stars that do not show the Blazhko effect but contain additional frequencies.
Methods. We analysed the time series data using standard Fourier methods, and also investigated the possibility of excitation of the second radial overtone mode in RRab stars using numerical hydrodynamical codes.
Results. We show that the additional frequencies appear in non-Blazhko RRab stars at the position of the second radial overtone mode, and the pattern they create is very similar to that caused by the additional frequencies with the period ratio of ∼0.68 in RRc stars. The formerly raised hypothesis that the additional frequencies of these RRab stars are due to a second radial overtone is unlikely.
Endovascular treatment of renal artery stenosis in Germany: a retrospective analysis of the DEGIR registry 2018–2021
Authors: Feyen Ludger , Artzner Christoph , Paprottka Philipp , Haage Patrick , Kröger Knut , Alhmid Bachar , Katoh Marcus 
Published: November 2023

Purpose To provide an overview of endovascular treatment of renal artery stenosis (RAS) using the data of the Deutsche Gesellschaft für interventionelle Radiologie (DeGIR) quality management system.
Materials and Methods A retrospective analysis was performed. Pre-, peri- and postprocedural data, technical success rates, complication rates, and clinical success rates at dismissal were examined.
Results Between 2018 and 2021, 2134 angiography examinations of the renal arteries were performed: diagnostic angiography in 70 patients (3 %), balloon angioplasty in 795 (37 %), stent implantation in 1166 (55 %) and miscellaneous procedures in 103 (5 %). The lesion length was less than or equal to 5 mm in 1837 patients (87 %), between 5 and 10 mm in 197 (9 %), and between 10 and 20 mm in 62 (3 %). The degree of stenosis was less than 50 % in 156 patients (7 %), greater than 50 % in 239 (11 %), and greater than 70 % in 1472 (70 %). Occlusion was treated in 235 patients (11 %). Symptoms at discharge resolved in 600 patients (29 %), improved in 1012 (49 %), were unchanged in 77 (4 %), and worsened in 5 (0.2 %). Complications were reported in 51 patients (2.5 %) and the mortality rate was 0.15 %.
Conclusion A substantial number of patients with RAS and occlusions were treated by radiologists in Germany, with high technical success rates and low complication rates. The indication should be determined carefully as the current European guidelines for the treatment of RAS suggest that only carefully selected groups of patients will benefit from recanalizing treatment.
Key Points:
Artificial Intelligence and Deep Learning for Advancing PET Image Reconstruction: State-of-the-Art and Future Directions
Authors: Hellwig Dirk , Hellwig Nils Constantin , Boehner Steven , Fuchs Timo , Fischer Regina , Schmidt Daniel 
Published: November 2023

AbstractPositron emission tomography (PET) is vital for diagnosing diseases and monitoring treatments. Conventional image reconstruction (IR) techniques like filtered backprojection and iterative algorithms are powerful but face limitations. PET IR can be seen as an image-to-image translation. Artificial intelligence (AI) and deep learning (DL) using multilayer neural networks enable a new approach to this computer vision task. This review aims to provide mutual understanding for nuclear medicine professionals and AI researchers. We outline fundamentals of PET imaging as well as state-of-the-art in AI-based PET IR with its typical algorithms and DL architectures. Advances improve resolution and contrast recovery, reduce noise, and remove artifacts via inferred attenuation and scatter correction, sinogram inpainting, denoising, and super-resolution refinement. Kernel-priors support list-mode reconstruction, motion correction, and parametric imaging. Hybrid approaches combine AI with conventional IR. Challenges of AI-assisted PET IR include availability of training data, cross-scanner compatibility, and the risk of hallucinated lesions. The need for rigorous evaluations, including quantitative phantom validation and visual comparison of diagnostic accuracy against conventional IR, is highlighted along with regulatory issues. First approved AI-based applications are clinically available, and its impact is foreseeable. Emerging trends, such as the integration of multimodal imaging and the use of data from previous imaging visits, highlight future potentials. Continued collaborative research promises significant improvements in image quality, quantitative accuracy, and diagnostic performance, ultimately leading to the integration of AI-based IR into routine PET imaging protocols.
A Scoping Review to Evaluate the Clinical Efficacy of Indigenously Produced, Patient-Specific Acrylic Cranial Prosthesis in Decompressive Craniectomy in India
Authors: Guleria Charu , Nalin Shrish , Kumar Dinesh 
Published: November 2023

AbstractHealth Technology Assessment in India assesses, evaluates, and carries out cost-effectiveness of available health technologies in the country for evidence-based decision-making. Current study carried out a scoping review to assess clinical efficacy of poly-methyl-methacrylate (PMMA) after decompressive craniectomy using various prototyping techniques in published literature. The O'Malley methodology and Preferred Reporting Items for Systematic Reviews and Metanalysis for Scoping Reviews—PRISMA-ScR—checklist were used to assess published literature from year 2008 to 2023. A total of 507 records were identified after searching electronic databases. After removing duplicate studies and studies that did not meet inclusion criteria, a total of 12 studies were included for review. A total of four studies were described as experimental and eight were case reports/series. The sample size of intervention studies varied between 10 and 30 patients with a mean age of 36.7 years. In a total of seven studies, cranioplasty was done by a self-made PMMA prosthesis fabricated using a novel three-dimensional-printed cranial model fabrication technique. In experimental study, objective criteria like operative Glasgow Outcome Scale, Cranial Index of Symmetry score, and Visual Analog Score for Cosmesis were employed. Clinical assessment for cranial symmetry was observed favorable for PMMA with fewer complications, though sample size was inadequate (range: 10–30) with comparator group in two studies.
The Clinical Significance of MicroRNAs in Colorectal Cancer Signaling Pathways: A Review
Authors: Michas Athanasios , Michas Vasileios , Anagnostou Evangelos , Galanopoulos Michail , Tolia Maria , Tsoukalas Nikolaos 
Published: November 2023

AbstractColorectal carcinoma (colon and rectum) is currently considered among the most prevalent malignancies of Western societies. The pathogenesis and etiological mechanisms underlying colorectal cancer (CRC) development remain complex and heterogeneous. The homeostasis and function of normal human intestinal cells is highly regulated by microRNAs. Therefore, it is not surprising that mutations and inactivation of these molecules appear to be linked with progression of colorectal tumors. Recent studies have reported significant alterations of microRNA expression in adenomas and CRCs compared with adjacent normal tissues. This observed deviation has been proposed to correlate with the progression and survival of disease as well as with choice of optimal treatment and drug resistance. MicroRNAs can adopt either oncogenic or tumor-suppressive roles during regulation of pathways that drive carcinogenesis. Typically, oncogenic microRNAs termed oncomirs, target and silence endogenous tumor-suppressor genes. On the other hand, tumor-suppressive microRNAs are critical in downregulating genes associated with cell growth and malignant capabilities. By extensively evaluating robust studies, we have emphasized and distinguished a discrete set of microRNAs that can modulate tumor progression by silencing specific driver genes crucial in signaling pathways including Wnt/b-catenin, epidermal growth factor receptor, P53, mismatch repair DNA repair, and transforming-growth factor beta.
Seed biology can inform conservation actions: a case study on Geijera parviflora
Authors: Liyanage Ganesha S. , Gilpin Amy-Marie , Offord Catherine A. , Martyn Yenson Amelia J. 
Published: November 2023

Context Knowledge of seed biology is imperative for effective curation and utilisation of seeds. Aims We studied the seed biology and reproduction of Geijera parviflora, a species suitable for ecological restoration and ornamental horticulture that has largely been overlooked because of issues with unreliable germination and viability. Methods Germination in response to dormancy-breaking treatments and soil seed burial, and variation in germination at an inter-population level were assessed for G. parviflora. Seed storability in a conventional seedbank was tested. Floral phenology was assessed. Key results Germination of untreated and seed coat removed seeds were 0 ± 0.0% and 67 ± 5.5% respectively. Seed germination varied between 21.9 ± 1.8 and 66.6 ± 5.5% at an inter-population level. Seeds buried in soil for 6 months showed 11.7 ± 0.8% germination without any treatment. All seeds buried for 12 months were non-viable. Drying seeds from 11.4 ± 0.19% to 5.79 ± 0.17% moisture content resulted in 40% less germination. Visual observation of floral attributes confirmed the presence of orange-coloured pollen grains for 3.5 ± 0.48 days from floral opening. The stigmatic surface became shiny 3.5 ± 0.21 days after floral opening. Conclusion Seeds of G. parviflora demonstrate physiological dormancy; treatments that remove seed coat resistance against embryo growth enable germination. Local environmental conditions may explain the inter-population variation in germination. Seeds are short-lived in soil and ex situ seedbank conditions. In soil, seeds release dormancy at the end of first winter, so seeds are available to germinate the following spring/summer with high rainfall. Floral phenology assessment indicated protandrous sequential hermaphroditism, which may reduce the probability of self-pollination in G. parviflora. Implications This knowledge supports use of G. parviflora in ecological restoration and horticulture.
Optimisation of hormonal treatment to improve follicular development in one-day-old mice ovaries cultured under in vitro condition
Authors: Torkzadeh Tahoura , Asadi Zahra , Jafari Atrabi Mohammad , Eivazkhani Farideh , Khodadi Maryam , Hajiaghalou Samira , Akbarinejad Vahid , Fathi Rouhollah 
Published: November 2023

Context Base medium containing knock-out serum replacement (KSR) has been found to support formation and maintenance of follicles in one-day-old mice ovaries, but has not been shown to properly support activation and growth of primordial follicles. Aims The present study was conducted to tailor the hormonal content of base medium containing KSR to enhance development of primordial follicles in neonatal ovaries. Methods One-day-old mice ovaries were initially cultured with base medium for four days, and then, different hormonal treatments were added to the culture media and the culture was proceeded for four additional days until day eight. Ovaries were collected for histological and molecular assessments on days four and eight. Key results In experiment I, the main and interactive effects of FSH and testosterone were investigated and FSH promoted activation of primordial follicles and development of primary and preantral follicles, and upregulated genes of phosphoinositide 3-kinase (Pi3k), KIT ligand (Kitl), growth differentiation factor 9 (Gdf9) and follicle stimulating hormone receptor (Fshr) (P < 0.05). Combination of testosterone and FSH, moreover, boosted gene expression of bone morphogenetic protein 15 (Bmp15), Connexin-43 (Cx43) and luteinising hormone and choriogonadotropin receptor (Lhcgr) (P < 0.05). In experiment II, the effect of various gonadotropins including FSH, equine chorionic gonadotropin (eCG) and human menopausal gonadotropin (hMG) on cultured ovaries was assessed and hMG supported development of primary follicles greater than eCG and FSH did (P < 0.05). Additionally, eCG and hMG increased gene expression of Lhcgr (P < 0.05), but FSH did not (P > 0.05). Conclusions Supplementation of culture medium containing KSR with gonadotropins, particularly hMG, could improve follicular growth and expression of factors regulating follicular development. Implications This study was a step forward in formulating an optimal medium for development of follicles in cultured one-day-old mice ovaries.
Final report for CCQM-P212: coherence of carbon isotope delta reference materials
Authors: Chartrand Michelle M G , Liu Fong-Ha , Merrick Jeffrey P , Fasciotti Maíra , Garrido Bruno Carius , Rego Eliane Cristina Pires do , Monteiro Thays Vieira da Costa , Wollinger Wagner , Moossen Heiko , Geilmann Heike , Chubchenko Ian , Kolobova Anna , Ogrinc Nives , Potočnik Doris , Dunn Philip J H , Goenaga-Infante Heidi , Hill Sarah , Malinovsky Dmitriy , Mester Zoltán , Meija Juris 
Published: November 2023

Main text
This pilot study evaluates the coherence of carbon isotope delta reference materials (RMs) used by laboratories worldwide. The goal was to assess how well laboratories can realize the VPDB scale using these RMs. In total, carbon isotope delta values of 36 RMs were measured by seven laboratories as well as the vanillin sample previously evaluated in CCQM-K167/P211. A hierarchical Bayesian measurement model was used to evaluate the coherence between these RMs, and to determine the carbon isotope delta value of each of these RMs. In general, this study shows that the 36 carbon isotope delta RMs are reliable. Further, the value assigned to the vanillin sample in this study is within 0.02 ‰ from the CCQM-K167 KCRV.
To reach the main text of this paper, click on Final Report. Note that this text is that which appears in Appendix B of the BIPM key comparison database https://www.bipm.org/kcdb/.
The final report has been peer-reviewed and approved for publication by the CCQM, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).
International comparison EURAMET.QM-K3.2019 - automotive exhaust gases
Authors: Ziel Ruben P , Zalewska E , Veen Adriaan M H van der , Kipphardt Heinrich , Tuma Dirk , Esteban Andres Rojo , Fernández Vicente Teresa E , Macé Tatiana , Sutour Christophe , Marioni Fabrice , Fükő Judit , Szűcs László , Büki Tamás , Nagyné Szilágyi Zsófia , Cieciora Dariusz , Ochman Grzegorz , Romanowski Przemysław , Lis Anna , Garnuszek Magdalena , Valkova Miroslava , Ackermann Andreas , Pascale Celine , Niederhauser Bernhard , Tarhan Tanıl , Boztepe Aylin , Beránek Jan , Bárta Miroslav 
Published: November 2023

Main text
EURAMET.QM-K3.2019 was a repeat of the key comparison EURAMET.QM-K3 on the composition of automotive exhaust gases. New in EURAMET.QM-K3.2019 was the addition of the amount fraction oxygen to the programme. The key comparison reference values were obtained independently, using static gravimetry and appropriate corrections from purity analysis and are linked to those of CCQM-K3.2019. The key comparison results show equivalence between the measurement standards maintained by the participating national metrology institutes. The demonstrated equivalence can be used to underpin services related to automotive exhaust gases as well as generically through the flexible scheme ("track A")
To reach the main text of this paper, click on Final Report. Note that this text is that which appears in Appendix B of the BIPM key comparison database https://www.bipm.org/kcdb/.
The final report has been peer-reviewed and approved for publication by the CCQM, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).
DRIP: deep regularizers for inverse problems
Authors: Eliasof Moshe , Haber Eldad , Treister Eran 
Published: November 2023

Abstract
In this paper we consider inverse problems that are mathematically ill-posed. That is, given some (noisy) data, there is more than one solution that approximately fits the data. In recent years, deep neural techniques that find the most appropriate solution, in the sense that it contains a-priori information, were developed. However, they suffer from several shortcomings. First, most techniques cannot guarantee that the solution fits the data at inference. Second, while the derivation of the techniques is inspired by the existence of a valid scalar regularization function, such techniques do not in practice rely on such a function, and therefore veer away from classical variational techniques. In this work we introduce a new family of neural regularizers for the solution of inverse problems. These regularizers are based on a variational formulation and are guaranteed to fit the data. We demonstrate their use on a number of highly ill-posed problems, from image deblurring to limited angle tomography.
Controlling phase transformation of La/Ni oxides by switching annealing conditions and their resultant pseudocapacitive behaviour
Authors: Gopi Undavalli Venkata , Reddi Uday Sai , Karthik M , Smaran Kumar Sai 
Published: November 2023

Abstract
Annealing step is a critical step in the hydrothermal assisted synthesis of La/Ni oxides such as LaNiO3−δ
(LNOA) and La2NiO4+δ
(LNON). In the current study, we have discovered the interlink between the atmosphere and temperature conditions which dictate the product formed. La/Ni nitrate precursors were subjected to a hydrothermal synthesis followed by an annealing step at appropriate temperature and varying atmosphere resulting in the synthesis of the corresponding oxides. The annealing temperature was varied in the range between 650 °C and 800 °C and also the annealing was carried out either in pure N2 atmosphere or air. From the x-ray diffraction analysis, it was inferred that annealing in air invariably resulted in the rhombohedral LaNiO3 (LNOA) perovskite phase, while annealing in N2 atmosphere resulted in an orthorhombic Ruddlesden–Popper phase La2NiO4 (LNON), a layered oxide containing traces of NiO phase. Typically, iodometric titrations substantiate the presence of Ni (III) which further can be correlated to the presence of oxygen vacancies (δ). Iodometric test results demarcated the difference between the two phases with absolutely minimal I2 liberated from the LNON samples proving that negligible amount of Ni (III) was present in LNON Scanning electron microscopy (SEM) images showed an agglomeration of particles annealed at higher temperatures irrespective of the atmosphere. Temperature dependent oxygen non-stoichiometry (Δδ) was analyzed through thermogravimetric analysis, wherein Δδ was inversely proportional to the annealing temperature for all of the LNOA samples. Considering that large δ values favor pseudocapacitive behaviour, it was observed LNOA oxides showed excellent pseudocapacitive behaviour compared to the LNON oxides. Dunn deconvolution of the cyclic voltammograms of LNOA 800 °C at 5 m Vs−1 indicated that diffusive contribution (66%) was predominant over capacitive contributions. The LNOA sample annealed at 800 °C displayed the highest specific capacitance of 100.3 F g−1 at 1 A g−1 current density.