bluuebunny/crossref_metadata_2025_split huggingface dataset:
Barium stars as tracers ofs-process nucleosynthesis in AGB stars
Authors: den Hartogh J. W. , Yagüe López A. , Cseh B. , Pignatari M. , Világos B. , Roriz M. P. , Pereira C. B. , Drake N. A. , Junqueira S. , Lugaro M. 
Published: April 2023

Context.Barium (Ba) stars are characterised by an abundance of heavy elements made by the slow neutron capture process (s-process). This peculiar observed signature is due to the mass transfer from a stellar companion, bound in a binary stellar system, to the Ba star observed today. The signature is created when the stellar companion is an asymptotic giant branch (AGB) star.Aims.We aim to analyse the abundance pattern of 169 Ba stars using machine learning techniques and the AGB final surface abundances predicted by the FRUITYand Monash stellar models.Methods.We developed machine learning algorithms that use the abundance pattern of Ba stars as input to classify the initial mass and metallicity of each Ba star’s companion star using stellar model predictions. We used two algorithms. The first exploits neural networks to recognise patterns, and the second is a nearest-neighbour algorithm that focuses on finding the AGB model that predicts the final surface abundances closest to the observed Ba star values. In the second algorithm, we included the error bars and observational uncertainties in order to find the best-fit model. The classification process was based on the abundances of Fe, Rb, Sr, Zr, Ru, Nd, Ce, Sm, and Eu. We selected these elements by systematically removings-process elements from our AGB model abundance distributions and identifying the elements whose removal had the biggest positive effect on the classification. We excluded Nb, Y, Mo, and La. Our final classification combined the output of both algorithms to identify an initial mass and metallicity range for each Ba star companion.Results.With our analysis tools, we identified the main properties for 166 of the 169 Ba stars in the stellar sample. The classifications based on both stellar sets of AGB final abundances show similar distributions, with an average initial mass ofM= 2.23M⊙and 2.34M⊙and an average [Fe/H] = −0.21 and −0.11, respectively. We investigated why the removal of Nb, Y, Mo, and La improves our classification and identified 43 stars for which the exclusion had the biggest effect. We found that these stars have statistically significant and different abundances for these elements compared to the other Ba stars in our sample. We discuss the possible reasons for these differences in the abundance patterns.
Art for climate change response of adolescents: Methodology adopted for the transformational individual sphere study
Authors: Oanh Truong Thi Kim , Giridharan Beena 
Published: April 2023

The investigative study attempts to elicit how art-based science experiences on the topic of climate crisis may shape young participants’ reactions to climate change and demonstrates the potential of transformational pathways created through art-integrated science communication activities at the level of the subjects’ sphere. The study applied Solomon’s four-group experimental design using two control and two treatment groups to study the transformation between groups. This research design allows researchers to assess the fundamental revision of testing, treatment/intervention and the remarkable correlation between testing and treatment (Daily, 2017).Although this research is a small-scale exploratory study, the results are validated using multiple data collection and analysis methods. At the core of the study, it aims to make an in-depth and critical interpretation based on the data analysis through a set of codes. The codes are various in the length of the text, from which group (control or experimental groups) to highly conceptual answers (given by four groups). The study advocates that science communication to the lay society through art-informed collaboration should be considered to achieve sustainability outcomes. The findings are expected to show how art can influence and effectively tell young people, as the future generation, creative and attractive narratives with proper knowledge of climate change adaptation.
Toughness and binding number bounds of star-like and path factor
Authors: Feng Xinge , Deng Xingchao 
Published: April 2023

Let $ \mathcal{L}$ be a set which consists of some connected graphs. LetEbe a spanning subgraph of graphG. It is called a $ \mathcal{L}$-factor if every component of it is isomorphic to the element in $ \mathcal{L}$. In this contribution, we give the lower bounds of four parameters (t(G), I(G), I′(G),bind (G)) ofG, which force the graphGadmits a ({K1,i:q ≤ i ≤ 2q − 1} ∪ {K2q+1})-factor forq ≥ 2 and a {P2, P2q+1}-factor forq ≥ 3 respectively. The tightness of the bounds are given.
Aktuelle Empfehlungen zu körperlicher Aktivität bei
Cancer Survivors – ein narratives Review
Authors: Salchow Jannike , Sinn Marianne , Berling-Ernst Anika 
Published: April 2023

ZusammenfassungKrebserkrankungen sind nach Herz-Kreislauf-Erkrankungen die
zweithäufigste Todesursache in Deutschland. Die Zahl der
Krebsüberlebenden, sogenannten „Cancer Survivors“, nimmt
aufgrund verbesserter Früherkennungsmethoden und Therapieformen stetig
zu.Allerdings ist die Gruppe der Cancer Survivors sehr heterogen und häufig
von Spät- und Langzeitfolgen der Krebstherapie betroffen (u. a.
Fatigue, Depressionen, Ängste). Viele dieser Nebenwirkungen
können effektiv durch eine angepasste Bewegungstherapie gelindert
werden. Derzeit existieren jedoch keine einheitlichen Empfehlungen zu
körperlicher Aktivität, und es gibt keine standardisierte
Bewegungstherapie für diese Zielgruppe.Ziel dieses Artikels ist es, einen Überblick über die aktuellen
Empfehlungen der Fachgesellschaften bei körperlicher Aktivität
für Cancer Survivors zu geben und diese untereinander zu vergleichen.
Einheitliche Empfehlungen, wie sie im Rahmen der aktuellen Erstellung der
S3-Leitlinien „Bewegungstherapie bei onkologischen Erkrankungen“
formuliert werden, sowie strukturierte Survivorship-Programme, über die
Betroffene einen Zugang zu Bewegungsangeboten erhalten, sind ein wichtiger
Schritt im Rahmen der onkologischen Versorgung.
Das Konzept des DVO Frakturrisikorechners
Authors: Glüer Claus-C. , Engelke Klaus , Thomasius Friederike 
Published: April 2023

ZusammenfassungDie Abschätzung des Frakturrisikos ist eine Kernaufgabe bei der
Identifikation Osteoporose gefährdeter PatientInnen. Für diesen
Zweck wurden verschiedene Risikorechner entwickelt. Trotz dessen besteht eine
erhebliche Unterversorgung von Osteoporosepatient:innen, was auch an
unzureichender Identifikation Betroffener liegt. Um hier eine Verbesserung zu
erzielen, wurde der DVO Frakturrisiko Rechner entwickelt. In diesem Beitrag
werden die Defizite bisheriger Risikorechner aufgeführt, um daraus das
Konzept des DVO Frakturrisiko Rechners abzuleiten. Kernaspekte sind i) ein breit
gefächertes Casefinding über 33 Evidenz-basiert validierte
Frakturrisikofaktoren, ii) der Fokus auf Schenkelhals- und
Wirbelkörperfrakturrisiko, iii) eine Berechnung des 3-Jahres
Frakturrisikos, optional mit 1-Jahresdaten bei hohem imminenten Frakturrisiko
und iv) Osteodensitometrie an Lendenwirbelsäule und proximalem Femur.
Die Risikoabschätzung basiert auf deutschen Referenzdaten. Das
Frakturrisiko wird aus dem Risiko von Personen, die keine der erhobenen
klinischen Risikofaktoren aufweisen, über ein geschlechts-spezifisches
multiplikatives Modell, das Alter, die relativen Risiken der zwei
stärksten klinischen Risikofaktoren und Osteodensitometrieergebnisse
berücksichtigt, ermittelt. Ziel ist die Implementierung als App, die den
Osteolog:innen des DVO kostenfrei zur Verfügung gestellt werden soll.
Bis zur Zertifizierung der App wird für eine Übergangszeit ein
vereinfachtes Modell in Tabellenform angeboten. Risikorechner können die
ärztliche Beurteilung nur unterstützen, sie nicht ersetzen, aber
der DVO Frakturrisiko Rechner wird hoffentlich dazu beitragen, die
Unterversorgung von Osteoporosepatient:innen zu verringern, in dem er hilft, in
effektiver Weise Risikopatient:innen zu identifizieren.
Synthesis of Chiral Spiro[4.5]decadienones via Chirality-Transferring Oxidative Intramolecular Cyclization of Allenylsilane-Tethered Phenols
Authors: Sakaguchi Kazuhiko , Kishimoto Ryoma , Iwakiri Yuka , Nishimura Takahiro 
Published: April 2023

AbstractReactions of phenols having a methylene-tethered chiral allenylsilane at the para position with a hypervalent iodine reagent result in chirality-transferring oxidative intramolecular cyclization accompanied by dearomatization of the phenol to stereoselectively give spiro[4.5]decadienones possessing a silylethynyl group.
A Retrospective Analysis of Autologous Stem Cell Transplantation Outcomes in Adult Philadelphia Chromosome Positive-Acute Lymphoblastic Leukemia
Authors: Satti Kiran Kumar , Mehra Nikita , Kalaiyarasi Jayachandran Perumal , Radhakrishnan Venkataraman , Karunakaran Parathan , Rathinam Krishna , Mani Samson , Ganesan Prasanth 
Published: April 2023

Abstract
Introduction Philadelphia chromosome positivity (Ph + ) is a poor prognostic feature in adult acute lymphoblastic leukemia (ALL). Allogenic hematopoietic stem cell transplantation in first complete remission (CR1) is recommended. There is limited literature on the role of consolidation autologous stem cell transplantation (ASCT). This study was undertaken to assess the potential of consolidation ASCT in CR1 in adults with Ph + ALL.
Objectives The aim of this study was to analyze the safety and efficacy of ASCT in CR1 in adults with Ph + ALL.
Materials and Methods Adult patients diagnosed with Ph + ALL who underwent ASCT in CR1 after modified ALL-BFM95 protocol from 2015 to 2017 were included. Patients who achieved major molecular response or better were considered for ASCT with cyclophosphamide-total body irradiation regimen and peripheral blood stem cells infused on day 0. Toxicities as per Common Terminology Criteria for Adverse Event v4.0, disease-free survival (DFS), and overall survival (OS) were assessed. Inclusion criteria: Following patients were included—patients aged 18 years and above diagnosed with Ph + ALL; patients receiving BFM-95 induction chemotherapy protocol; patients who achieved CR after induction therapy; nonavailability of human leukocyte antigen match from a matched sibling donor or matched unrelated donor. Exclusion criteria: Patients not willing or unfit for ASCT and patients planned for allogenic hematopoietic stem cell transplantation were excluded.
Results Six adult patients with Ph + ALL underwent ASCT in CR1 (median age: 23 [range: 19–36] years, five patients were males [83%]). Imatinib was started at a median of 11 days from the start of induction IA (range: 10–21). Five patients achieved morphological CR after induction 1A and, one patient at the end of induction 1B. The median time to ASCT (from diagnosis) was 8 months (range: 6.4–13). All the six patients had disease relapse and died due to progressive ALL. The median DFS and OS were 19.2 months and 23.3 months, respectively.
Conclusion Consolidation ASCT yielded poor outcomes in this study. There was a significant delay from diagnosis to ASCT, which might have impacted the results.
Impact of the COVID-19 Pandemic on the Psychological Well-Being of Health Care Professionals in India
Authors: Siddiqui Hiba , Garg Shubham , Julka Pramod Kumar , Chaturvedi Aditi , Choudhri Sharan , Arora Ramandeep Singh 
Published: April 2023

Abstract
Introduction and Objective Health care professionals (HPs) have been at the forefront facing the pressures and uncertainties of the COVID-19 pandemic, and thus have a higher psychological vulnerability. The incidence of psychological distress, which can negatively affect an HP's work efficiency and long-term well-being, has not been studied in depth in India.
Materials and Methods A multicentric study was conducted using the digital means of communication across Max Healthcare between June and August 2020. HPs in the department of oncology, including doctors, nurses, and other support staff, were invited to voluntarily participate in the self-administered online survey. A total of 87 HPs in oncology (41 doctors, 28 nurses, and 18 in other fronts) were assessed using the 12-item General Health Questionnaire (GHQ-12). Outcome of interest was psychological distress (defined as a GHQ-12 score >15).
Results The overall incidence of psychological distress among HPs in oncology during the COVID-19 pandemic was 17.20%. Significantly higher levels of psychological distress were observed among HPs with a history of psychiatric illness (p = 0.003), and among HPs with a work experience of less than 10 years (p = 0.017).
Conclusion The COVID-19 pandemic had a significant impact on the psychological well-being of HPs in India. This study implicated the recognition of the psychological well-being of HPs in oncology as an unmet need during the COVID-19 pandemic, further recommending efforts toward increasing accessibility of mental health services for them.
A Review on the Role of Molecular Genetics in the Diagnostic Workup of BCR::ABL1-Negative Myeloproliferative Neoplasms
Authors: Maddali Madhavi , Arunachalam Arun Kumar , Kapadia Alpesh Kumar BipinBhai , Kulkarni Uday Prakash , Balasubramanian Poonkuzhali 
Published: April 2023

AbstractThe diagnostic evaluation of myeloproliferative neoplasms (MPNs) depends on the close correlation between clinical features, morphologic assessment of a trephine bone marrow biopsy, and molecular markers. Typically, MPNs have driver mutations in JAK2, CALR, or MPL, as well as mutations in genes related to epigenetic regulation, RNA splicing, and signaling. Mutations in these genes are a hallmark of diagnostic, prognostic, and therapeutic assessment in patients with MPNs. In line with the World Health Organization classification, all myeloproliferative disorders require molecular characterization to support diagnoses or confirm entities defined by underlying molecular abnormalities. A structured molecular analysis workflow is essential for a rapid and cost-effective diagnosis of MPN. The purpose of this review is to explore the role of molecular diagnostics in the assessment of BCR::ABL1-negative MPNs.
Mechanistic origins of methyl-driven Overhauser DNP
Authors: Perras Frédéric A. , Matsuki Yoh , Southern Scott A. , Dubroca Thierry , Flesariu Dragos F. , Van Tol Johan , Constantinides Christos P. , Koutentis Panayiotis A. 
Published: April 2023

The Overhauser effect in the dynamic nuclear polarization (DNP) of non-conducting solids has drawn much attention due to the potential for efficient high-field DNP as well as a general interest in the underlying principles that enable the Overhauser effect in small molecules. We recently reported the observation of 1H and 2H Overhauser effects in H3C- or D3C-functionalized Blatter radical analogs, which we presumed to be caused by methyl rotation. In this work, we look at the mechanism for methyl-driven Overhauser DNP in greater detail, considering methyl librations and tunneling in addition to classical rotation. We predict the temperature dependence of these mechanisms using density functional theory and spin dynamics simulations. Comparisons with results from ultralow-temperature magic angle spinning-DNP experiments revealed that cross-relaxation at temperatures above 60 K originates from both libration and rotation, while librations dominate at lower temperatures. Due to the zero-point vibrational nature of these motions, they are not quenched by very low temperatures, and methyl-driven Overhauser DNP is expected to increase in efficiency down to 0 K, predominantly due to increases in nuclear relaxation times.
Controlling solar radiation forces with graphene in plasmonic metasurface
Authors: Soleymani Sina , Seyyedmasoumian Sevda , Attariabad Asma , Soleymani Sepideh , Bayat Farzaneh , Sabet Hamid 
Published: April 2023

Abstract
Controlling and harvesting solar radiation pressure is a significant challenge, however, there are a few potential solutions, which are suitable for several key applications. In this study, an electrically tunable plasmonic metasurface is designed for the visible spectrum. Moreover, the normal and the tangential optical forces acting on the metasurface are calculated. Whilst presenting high efficiency in the anomalous reflection, the designed active metasurface provides tunability of optical forces acting on the metasurface. The metasurface is composed of tapered silver cells embedded on top of the graphene layer with 20 layers of graphene sheets. Hence, the transferred momentum to the metasurface can be controlled by tuning the Fermi level of graphene sheets. Our results can provide a suitable platform for optical force control desired in tunable radiation pressure harvesting, micro vehicles, solar sailing, and optical tweezers.
Coexisting attractors and multi-stability within a Lorenz model with periodic heating function
Authors: Ahmadi Atefeh , Parthasarathy Sriram , Natiq Hayder , Rajagopal Karthikeyan , Huerta-Cuellar Guillermo , Jafari Sajad 
Published: April 2023

Abstract
In this paper, the classical Lorenz model is under investigation, in which a periodic heating term replaces the constant one. Applying the variable heating term causes time-dependent behaviors in the Lorenz model. The time series produced by this model are chaotic; however, they have fixed point or periodic-like qualities in some time intervals. The energy dissipation and equilibrium points are examined comprehensively. This modified Lorenz system can demonstrate multiple kinds of coexisting attractors by changing its initial conditions and, thus, is a multi-stable system. Because of multi-stability, the bifurcation diagrams are plotted with three different methods, and the dynamical analysis is completed by studying the Lyapunov exponents and Kaplan-Yorke dimension diagrams. Also, the attraction basin of the modified system is investigated, which approves the appearance of coexisting attractors in this system.
Exact solutions of the Schrödinger equation for another class of hyperbolic potential wells
Authors: Wang Xiao-Hua , Chen Chang-Yuan , You Yuan , Sun Dong-Sheng , Lu Fa-Lin , Dong Shi-Hai 
Published: April 2023

Abstract
In this work a new scheme is proposed to study the exact solutions of another class of hyperbolic potentials U

p
. We first obtain two linearly dependent eigenfunctions corresponding to the same even-parity state or odd-parity state by taking different variable substitutions and function transformations and then find that their solutions can be expressed analytically as the confluent Heun functions (CHFs). The Wronskian determinant which can be constructed by two linearly dependent eigenfunctions is used to get the corresponding energy spectrum equations with respect to even- and odd-parity states. According to energy spectrum equation, we can first study the intersection distribution between F(ε) which is defined by the Wronskian determinant and energy levels ε, and then determine the total number of bound states as well as the exact energy levels. Substitution of the obtained energy levels into the eigenfunction allows us to obtain the normalized eigenfunction, which can be illustrated easily in graphics. Finally, we notice that only the potential well U
2 exists a polynomial solution for some special potential well depths u.
Pulsation Analysis of High-Amplitude δ Scuti Stars with TESS
Authors: Xue Wangjunting , Niu Jia-Shu , Xue Hui-Fang , Yin Sijing 
Published: April 2023

Abstract
In this work, the pulsation analysis is performed on 83 high-amplitude δ Scuti stars (HADS), which have been observed by the Transiting Exoplanet Survey Satellite. The results show that 49 of these HADS show single-mode pulsation, 27 of them show radial double-modes pulsation (in which 22 of them pulsate with the fundamental and first overtone modes and five of them pulsate with the first and second overtone modes), and seven of them show radial triple-modes pulsation (three of which are newly confirmed triple-mode HADS). The histogram of the fundamental periods and the ratios between the fundamental and first overtone periods show bimodal structures, which might be caused by the stellar evolution in this specific phase. Most of the radial triple-mode HADS have a fundamental amplitude of 41–54 mmag, and 50% of them have similar amplitudes of the fundamental and first overtone pulsation modes. All these hints require further confirmation not only in observations with more HADS samples, but also in theoretical models with suitable treatments of stellar evolution and pulsation.
Cosmology of a Chaplygin Gas Model Under f(T) Gravity and Evolution of Primordial Perturbations
Authors: Sultana Sanjeeda , Chattopadhyay Surajit 
Published: April 2023

Abstract
This paper reports a detailed study of generalized Chaplygin gas (GCG) with power law form of scale factor and truncated form of the scale factor using binomial expansion in both interacting and non-interacting scenarios along with its cosmological consequences, studied in terms of equation of state (EoS) parameter. In the non-interacting scenario, the EoS parameter behaves as quintessence in both forms of the scale factor. In the interacting scenario, the EoS parameter behaves as phantom and for the truncated form of the scale factor, it violates the constraints of the positive parameter α. The cosmological implementation of GCG interacting with pressureless dark matter is investigated in the framework of f(T) modified gravity, where T is the torsion scalar in teleparallelism. The interaction term is directly proportional to the GCG density with positive coupling constant. In f(T) gravity, the EoS is behaving like phantom. The stability of the reconstructed model is investigated and it is found to be stable against small gravitational perturbations, i.e., the squared speed of sound is non-negative and an increasing function of cosmic time t. We have observed that our reconstructed f(T) model satisfies one of the sufficient conditions of a realistic reconstructed model and it is consistent with the CMB constraints and primordial nucleosynthesis. Cosmology of primordial perturbations has also been analyzed and the self-interacting potential has been found to be an increasing function of cosmic time t.
Single-pulse Emission Variation of Two Pulsars Discovered by FAST
Authors: Guo Ziping , Wen Zhigang , Yuan Jianping , Kou Feifei , Wu Qingdong , Wang Na , Zhu Weiwei , Li Di , Xue Mengyao , Wang Pei , Miao Chenchen , Zhao De , Hu Yue , Yan Wenming , Niu Jiarui , Rejep Rukiye , Huang Zhipeng 
Published: April 2023

Abstract
We investigate the single-pulse emission variations of two pulsars, PSRs J0211+4235 and J0553+4111, observed with the Five-hundred-meter Aperture Spherical radio Telescope at the 1.25 GHz central frequency. The observation sessions span from 2020 December to 2021 July, with 21 and 22 observations for them respectively. The integrated pulse profile of PSR J0211+4235 shows that there is a weak pulse component following the main component, and PSR J0553+4111 displays a bimodal profile with a bridge component in the middle. PSR J0211+4235 presents significant nulling phenomenon with nulling duration lasting from 2 to 115 pulses and burst duration lasting from 2 to 113 pulses. The NF of each observation is determined to be 45%–55%. No emission greater than three σ is found in the mean integrated profile of all nulling pulses. In most cases, the pulse energy changes abruptly during the transition from null to burst, while in the transition from burst to null there are two trends: abrupt and gradual. We find that the nulling phenomenon of PSR J0211+4235 is periodic by the Fourier transform of the null and burst state. In addition, the single-pulse modulation characteristics of these two pulsars are investigated, and the distributions of modulation index, LRFS and 2DFS are analyzed with PSRSALSA. The left peak of PSR J0553+4111 has intensity modulation. Finally, the polarization properties of these two pulsars are obtained through polarization calibration, and their characteristics are analyzed. The possible physical mechanisms of these phenomena are discussed.