bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Concept of Controlled Digital Lending: Possibilities of Application in Croatian Libraries
Authors: Katulić Anita 
Published: December 2022

The purpose of this paper is to investigate the relationship between the recommendations of the international library communities and the modern legislative framework in the Republic of Croatia on issues of copyright and related rights regarding libraries and e-lending. In 2021, a new Copyright and Related Rights Act entered into force in Croatia, and in recent years, especially in the context of the COVID-19 pandemic, more attention has been paid in the literature to the concept of the so-called Controlled Digital Lending (CDL) which helps fulfil the mission of libraries in supporting research, education and participation in cultural life within the limits of existing copyright laws. The CDL allows the library to circulate a digitized title instead of a physical copy, provided that the loan must take place in a controlled manner: the loan may contain as many copies of the title as the library has legally acquired. As a concept, CDL is an interesting and suitable solution for the uninterrupted provision of library services in cases of extraordinary circumstances such as a pandemic. Given that has its roots in the American legal system that is significantly different from European legal framework of copyright, IFLA in the Statement of controlled loan e-books (IFLA Statement on controlled digital lending) published in June 2021 recommends considering the application of the CDL in the framework of national legislation, so the paper will present the position of the international library community on lending e-books expressed in the Declaration and consider the possibilities of e-lending and digital copying of printed books and its lending according to the CDL concept in the context of the new Copyright and Related Rights Act and in general within the framework of contemporary Croatian and European legislation.
EXISTENTIAL EXPERIENCES OF WOMEN WITH INFERTILITY IN IVF TREATMENT
Authors: Рудакова Юлия Борисовна 
Published: December 2022

В статье раскрывается сущность феномена экзистенциальных переживаний женщин с диагнозом бесплодие при лечении методом экстракорпорального оплодотворения (ЭКО). В результате проведенного анализа отечественной и зарубежной литературы, посвященной экзистенциальным переживаниям; психолого-медицинской литературы, были сформулированы общие выводы и подтверждены гипотезы о том, что переживания женщин с диагнозом бесплодие носят экзистенциальный характер и связаны с экзистенциальными мотивациями.
The article reveals the essence of the phenomenon of existential experiences. As a result of the analysis of domestic and foreign literature devoted to existential experiences, a definition was formulated, a differential diagnosis was given, and the list of existential experiences was clarified.
NuSTAR Spectral Analysis beyond 79 keV with Stray Light
Authors: Mastroserio G. , Grefenstette B. W. , Thalhammer P. , Buisson D. J. K. , Brumback M. C. , Ludlam R. M. , Connors R. M. T. , García J. A. , Grinberg V. , Madsen K. K. , Miyasaka H. , Tomsick J. A. , Wilms J. 
Published: December 2022

Abstract
Due to the structure of the NuSTAR telescope, photons at a large off axis (>1°) can reach the detectors directly (stray light), without passing through the instrument optics. At these off-axis angles NuSTAR essentially turns into a collimated instrument and the spectrum can extend to energies above the Pt K edge (79 keV) of the multilayers, which limits the effective area bandpass of the optics. We present the first scientific spectral analysis beyond 79 keV using a Cygnus X-1 observation in StrayCats: the catalog of stray light observations. This serendipitous stray light observation occurred simultaneously with an INTEGRAL observation. When the spectra are modeled together in the 30–120 keV energy band, we find that the NuSTAR stray light flux is well calibrated and constrained to be consistent with the INTEGRAL flux at the 90% confidence level. Furthermore, we explain how to treat the background of the stray light spectral analysis, which is especially important at high energies.
Black Hole Encircled by a Thin Disk: Fully Relativistic Solution*
Authors: Kotlařík Petr , Kofroň David 
Published: December 2022

Abstract
We give a full metric describing the gravitational field of a static and axisymmetric thin disk without radial pressure encircling a Schwarzschild black hole. The disk density profiles are astrophysically realistic, stretching from the horizon to radial infinity, yet falling off quickly at both these locations. The metric functions are expressed as finite series of Legendre polynomials. The main advantages of the solution are that (i) the disks have no edges, so their fields are regular everywhere (outside the horizon), and (ii) all nontrivial metric functions are provided analytically and in closed forms. We examine and illustrate basic properties of the black hole−disk spacetimes.
Modeling the Extragalactic Background Light and the Cosmic Star Formation History
Authors: Finke Justin D. , Ajello Marco , Domínguez Alberto , Desai Abhishek , Hartmann Dieter H. , Paliya Vaidehi S. , Saldana-Lopez Alberto 
Published: December 2022

Abstract
We present an updated model for the extragalactic background light (EBL) from stars and dust, over wavelengths ≈0.1–1000 μm. This model uses accurate theoretical stellar spectra, and tracks the evolution of star formation, stellar mass density, metallicity, and interstellar dust extinction and emission in the universe with redshift. Dust emission components are treated self-consistently, with stellar light absorbed by dust reradiated in the infrared as three blackbody components. We fit our model, with free parameters associated with star formation rate and dust extinction and emission, to a wide variety of data: luminosity density, stellar mass density, and dust extinction data from galaxy surveys; and γ-ray absorption optical depth data from γ-ray telescopes. Our results strongly constraint the star formation rate density and dust photon escape fraction of the universe out to redshift z = 10, about 90% of the history of the universe. We find our model result is, in some cases, below lower limits on the z = 0 EBL intensity, and below some low-z
γ-ray absorption measurements.
Survey of Ices toward Massive Young Stellar Objects. I. OCS, CO, OCN−, and CH3OH
Authors: Boogert A. C. A. , Brewer K. , Brittain A. , Emerson K. S. 
Published: December 2022

Abstract
An important tracer of the origin and evolution of cometary ices is the comparison with ices found in dense clouds and toward young stellar objects (YSOs). We present a survey of ices in the 2–5 μm spectra of 23 massive YSOs, taken with the NASA InfraRed Telescope Facility SpeX spectrometer. The 4.90 μm absorption band of OCS ice is detected in 20 sight lines, more than 5 times the previously known detections. The absorption profile shows little variation and is consistent with OCS embedded in CH3OH-rich ices, and proton-irradiated H2S or SO2-containing ices. The OCS column densities correlate well with those of CH3OH and OCN−, but not with H2O and apolar CO ice. This association of OCS with CH3OH and OCN− firmly establishes their formation location deep inside dense clouds or protostellar envelopes. The median composition of this ice phase toward massive YSOs, as a percentage of H2O, is CO:CH3OH:OCN−:OCS = 24:20:1.53:0.15. CS, due to its low abundance, is likely not the main precursor to OCS. Sulfurization of CO is likely needed, although the source of this sulfur is not well constrained. Compared to massive YSOs, low-mass YSOs and dense clouds have similar or somewhat lower CO and CH3OH ice abundances, but less OCN− and more apolar CO, while OCS awaits detection. Comets tend to be underabundant in carbon-bearing species, but this does not appear to be the case for OCS, perhaps signalling OCS production in protoplanetary disks.
Quasiperiodic Erupters: A Stellar Mass-transfer Model for the Radiation
Authors: Krolik Julian H. , Linial Itai 
Published: December 2022

Abstract
Quasiperiodic erupters are a remarkable class of objects exhibiting very-large-amplitude quasiperiodic X-ray flares. Although numerous dynamical models have been proposed to explain them, relatively little attention has been given to using the properties of their radiation to constrain their dynamics. Here we show that the observed luminosity, spectrum, repetition period, duty cycle, and fluctuations in the latter two quantities point toward a model in which a main-sequence star on a moderately eccentric orbit around a supermassive black hole periodically transfers mass to the Roche lobe of the black hole; orbital dynamics lead to mildly relativistic shocks near the black hole; and thermal X-rays at the observed temperature are emitted by the gas as it flows away from the shock. Strong X-ray irradiation of the star by the flare itself augments the mass transfer, creates fluctuations in flare timing, and stirs turbulence in the stellar atmosphere that amplifies the magnetic field to a level at which magnetic stresses can accelerate infall of the transferred mass toward the black hole.
The Double White Dwarf Merger Progenitors of SDSS J2211+1136 and ZTF J1901+1458
Authors: Sousa M. F. , Coelho J. G. , de Araujo J. C. N. , Kepler S. O. , Rueda J. A. 
Published: December 2022

Abstract
Double white dwarf (DWD) mergers are possibly the leading formation channel of massive, rapidly rotating, high-field magnetic white dwarfs (HFMWDs). However, a direct link connecting a DWD merger to any observed HFMWD is still missing. We here show that the HFMWDs SDSS J221141.80+113604.4 (hereafter J2211+1136) and ZTF J190132.9+145808.7 (hereafter J1901+1458) might be DWD merger products. J2211+1136 is a 1.27 M
⊙ white dwarf (WD) with a rotation period of 70.32 s and a surface magnetic field of 15 MG. J1901+1458 is a 1.327–1.365 M
⊙ WD with a rotation period of 416.20 s, and a surface magnetic field in the range 600–900 MG. With the assumption of single-star evolution and the currently measured WD masses and surface temperatures, the cooling ages of J2211+1136 and J1901+1458 are, respectively, 2.61–2.85 Gyr and 10–100 Myr. We hypothesize that these WDs are DWD merger products and compute the evolution of the postmerged configuration formed by a central WD surrounded by a disk. We show that the postmerger system evolves through three phases depending on whether accretion, mass ejection (propeller), or magnetic braking dominates the torque onto the central WD. We calculate the time the WD spends in each of these phases and obtain the accretion rate and disk mass for which the WD rotational age, i.e., the total time elapsed since the merger to the instant where the WD central remnant reaches the current measured rotation period, agrees with the estimated WD cooling age. We infer the mass values of the primary and secondary WD components of the DWD merger that lead to a postmerger evolution consistent with the observations.
Detection of the Irregular Shape of the Southern Limb of Menoetius from Observations of the 2017–2018 Patroclus–Menoetius Mutual Events
Authors: Pinilla-Alonso Noemí , Popescu Marcel , Licandro Javier , Fernández-Valenzuela Estela , Grundy Will M. , Duffard Rene , Cabrera-Lavers Antonio , Soto Diego Hidalgo , Rizos Juan Luis , Morate David 
Published: December 2022

Abstract
This work presents the analysis of seven mutual events of the Patroclus–Menoetius system (PMS) observed during the last season of mutual events, in 2017–2018. We compare the obtained light curves with those predicted using Grundy et al. and discuss the differences in the timing of the events and the drop of magnitude. Based on models of these observations, we present a collection of orbital parameters that provide the best fit for the observed events and compare the new solutions for the orbit of the system with solutions provided in the literature. Furthermore, we also discuss an interesting finding in the light curve of the only superior event in our collection. This light curve (the one with the best signal-to-noise ratio in our data set) shows the imprint of a possible crater in the south pole of Menoetius as deep as a fourth of its radius.
« Parce que l’environnement ne peut pas faire la différence entre le forage commercial et le forage scientifique » : l’exemple du Kongsfjorden au Svalbard pour poser la question du surpâturage du terrain de recherche
Authors: Strouk Mayline 
Published: December 2022

La recherche sur les changements environnementaux participe-t-elle, elle-même, à ce qu’elle dénonce ? À travers la notion de surpâturage , cet article cherche à questionner les impacts de la science sur le terrain de recherche, en particulier sur les territoires qui attirent une forte concentration de chercheurs. Les sciences sociales se sont déjà emparées de la problématique de la surétude de certains terrains de recherche, mais celle-ci reste encore marginale dans les sciences environnementales. En s’inscrivant dans le champ de la géographie des sciences, qui étudie la recherche scientifique comme un fait social spatialisé, cet article explore la notion de surpâturage en l’appliquant au cas du Kongsfjorden dans l’archipel arctique du Svalbard. L’exemple du Kongsfjorden permet de comprendre comment se construit l’attractivité d’un territoire pour la recherche scientifique et invite à questionner le rapport au terrain des chercheurs.
A new Herodianic treatise on dichrona and a new fragment of Hipponax
Authors: Pontani Filippomaria 
Published: December 2022

Cet article propose l’ editio princeps (avec apparat critique et apparat des sources) d’un traité grammatical grec portant sur la quantité des voyelles ancipites ou dichrona (α, ι, υ): le texte n’est transmis que par un seul manuscrit datant du xiv e siècle ( Par. gr. 2646). Sa paternité demeure incertaine, mais la plupart des doctrines qu’il présente montrent des affinités frappantes avec celles du grand Hérodien ( ii e siècle ap. J.-C.). L’introduction esquisse le contexte qu’on peut envisager pour ce texte si remarquable, et envisage ses rapports avec les quelques autres traités Peri dichronon qui nous sont parvenus. Sont également étudiées les citations littéraires transmises par ce traité : la plus importante est un nouveau fragment (de deux mots) du poète lyrique Hipponax.
Caudal Morphine in Pediatric Patients
Authors: Das Sushree , Acharya Ranjita , Patro Madhusmita , Moda Nupur , Mounika Gunde 
Published: December 2022

Background:
One of the most feared symptoms of any disease is PAIN. It is a complex phenomenal experience, especially in children. Various methods and medications have been administered through different routes. Regional anesthesia produces marvelous postoperative analgesia and cessation of stress response in infants and children. Caudal epidural analgesia is the most acceptable and popular method of providing intra- and postoperative analgesia for abdominal, perineal, and lower limb surgeries in children. The use of preservative-free morphine as an adjunct to ropivacaine increases the quality and duration of analgesia despite the various side effects. Various articles use various doses of morphine as an adjuvant in caudal epidural analgesia. Hence, we conducted the study to compare the two dosages of morphine that is 20 μg.kg−1 and 30 μg.kg−1 of caudal epidural morphine for infraumblical surgeries with regard to its efficacy and safety and side effect profiles.

Materials and Methods:
The study is a prospective, randomized, double-blinded study. Sixty patients were divided into two groups. Group A: 20 μg.kg−1 of morphine was added to 0.2% ropivacaine 1 mL.kg−1 and the solution was made. Group B: 30 μg.kg−1 of morphine was added to 1 mL.kg−1 of 0.2% ropivacaine. Heart rate, systolic blood pressure, diastolic blood pressure, SPO2, pain score, and sedation score were recorded immediately, after 15 min, 30 min, 45 min, 1 h, 2 h, 4 h, 8 h, 12 h, 16 h, 18 h, and 24 h were recorded.

Results:
The mean duration of analgesia is similar in both groups (P = 0.011). The mean duration was 20.517 ± 1.9143 h in Group A and 22.233 ± 1.6853 h in Group B. Children with the requirement of one dose of rescue analgesia in Group A was 83.3% which was higher than Group B being 66.7%. Children with no analgesic requirement were 16.7% in Group A and 33.3% in Group B. The incidence of side effects was more in Group B (8 [26.7%] children with nausea and vomiting; 1 [3.3%] children with urinary retention) than in Group A (2 [6.6%] children with nausea and vomiting.

Conclusion:
From the above observations, it can be concluded that morphine of less dosage (20 μg.kg−1) when added to 0.2% ropivacaine for the caudal epidural block has better efficacy than morphine of higher dosage (30 μg.kg−1) as the duration of analgesia is similar with decreased incidence of side effects.
Reduction in the Rate of Mortality of Moderate to Severe COVID 19 Infected Patients with the use of Remdesivir - A Tertiary Care Hospital-Based Retrospective Observational Study
Authors: Lakhanpal Mahima , Sarkar Debpriya , Kumar Ritesh , Yadav Isha 
Published: December 2022

Background:
As the waves of coronavirus disease 2019 (COVID-19) pandemic continues, the current treatment modalities emphasize the use of antiviral agents to save the human lives. Even though remdesivir is one of the current recommended modalities, data on the efficacy of remdesivir in reducing the rate of 28-day mortality are still not concurrent in all the reports.

Aim:
The present study aimed to determine the effectiveness of remdesivir in reducing the rate of mortality in a tertiary care hospital as retrospective comparative analysis.

Setting and Design:
The present study is a retrospective, comparative analysis of accurate and well-documented case files.

Methods:
Data (n = 262) of COVID-19–infected patients admitted and treated with remdesivir (Gp R; n = 160) and without remdesivir (Gp NR: n = 102) between June 1, 2021, and November 30, 2021, were collected and analyzed to obtain the results.

Statistical Analysis:
The data from individual case files were transferred to excel files (Microsoft office, Redmond, WA, USA) and then analyzed using Statistical Package for the Social Studies (SPSS, IBM, Armonk, NY, USA). The descriptive statistical values were expressed as mean ± standard deviation and number, frequencies/percentages. Student's t-test, Chi-square test, and ANOVA were employed for comparative statistics. P < 0.05 was considered statistically significant.

Results:
On analysis of the extracted data, the age, Acute Physiology and Chronic Health Evaluation-IV score, and predicted mortality rate between two groups have not shown significant difference (P > 0.05, ANOVA) and were comparable (P > 0.05, ANOVA). Furthermore, the 28-day mortality rate was significantly reduced (P < 0/001) in the Gp R where the rate of mortality was found to be 6.87%, whereas in Gp NR, it was 29.41%.

Conclusion:
Treatment with remdesivir was able to significantly increase the rate of survival of the patients and reduction in day-28 mortality when compared with the patients who had undergone treatment without remdesivir. Therefore, the results of the current retrospective, observational analysis from a tertiary care hospital could also be a piece of remarkable information to a significant number of existing data globally.
Effect of Preoperative Duloxetine Hydrochloride on Reducing Postoperative Morphine Requirement after Open Radical Cholecystectomy in Cancer Patients
Authors: Haider Nida , Shukla Aparna , Chaurasia Manoj Kumar , Verma Reetu , Hemlata  , Singh Gyan Prakash 
Published: December 2022

Background:
Recently, opoids are linked with cancer recurrence. Duloxetine hydrochloride (DH), an anxiolytic may reduce total opoid requirement after cancer surgery.

Aims:
We assessed the efficacy of a single dose of DH in reducing the total morphine requirement after open radical cholecystectomy. We also calculated the Visual Analog Scale (VAS) score, patient satisfaction score (PSS), and time taken to the use of the first rescue analgesic.

Setting and Designes:
This is a prospective, randomized, double blind, controlled study conducted in the patients aged 20–70 years (American Society of Anaesthesiologists classes I–III) undergoing open radical cholecystectomy under general anesthesia for carcinoma gall bladder.

Materials and Methods:
The patients were divided into two groups of 32 patients each by computer-generated randomization. Group A received oral DH (60 mg); Group B received identical placebo capsules 2 h before surgery with a sip of water. Postoperatively, intravenous morphine was given using a patient-controlled analgesia pump. After 24 h, total morphine consumption, the VAS score, time to the first rescue analgesia, and PSS were recorded.

Statistical Analysis:
Statistical Package for the Social Sciences software (SPSS version 22.0, IBM Corp., Chicago, IL, USA 2013). P value < 0.05 or 0.001 was considered statistically significant.

Results:
The total morphine consumption and VAS score were significantly lower in Group A. No significant effects was observed on PSS.

Conclusion:
A single 60 mg dose of DH administered 2 h before open radical cholecystectomy reduced total morphine consumption and improved VAS score postoperatively with no effect on PSS.
Estimation of Malondialdehyde Levels and Determination of Total Antioxidant Capacity in Serum and Saliva of Patient Affected with Sickle Cell Anemia
Authors: Bahal Megha , Nyamati Sanjay , Hegde Shweta , Kakkar Abhinav , Sood Idha , Kalra Salona 
Published: December 2022

Introduction:
Hemoglobinopathy is an inherited blood disorder in which an individual has an abnormal form of hemoglobin (variant) or decreased production of hemoglobin. The molecular pathogenesis of sickle cell disease explains the phenomenon well when there is adeficiency of oxygen carriage by the erythrocytes. The horrendous patterns of sickling/unsickling bring about the accumulation of lipid oxidation items and reactive oxygen speciesthat gather inside sickle-shaped red blood cells (RBCs).

Aims:
To estimate the malondialdehyde levels and determine the total antioxidant capacity in serum and saliva of sickle cell anemic patients.

Methods and Material:
Fiftysubjects aged 5–40 years were selected for the study. The subjects were divided into two groups. Blood and saliva samples were collected from both groups and were subjected to the phosphomolybdenum method. Absorbance was read spectrophotometrically at 695 nm. SPSS software was used, and statistical analysis was performed using Student's unpaired ttests.

Results:
Oxidative stress results f an imbalance between reactive oxygen species formation and enzymatic and non-enzymatic antioxidants.

Conclusion:
Salivary levels of total antioxidant capacity, malondialdehyde, and electrolytes make saliva a potential prognostic and diagnostic medium as there is an alteration of oxidative stress in sickle cell anemia (SCA).