bluuebunny/crossref_metadata_2025_split huggingface dataset:
Experiments into the influence of linguistic (in)directness on perceived face-threat in Twitter complaints
Authors: Ruytenbeek Nicolas , Decock Sofie , Depraetere Ilse 
Published: April 2022

Abstract
To date, there has been little attention for the factors that influence the perception of online complaints. We present two experiments in which we test the impact of the degree of linguistic (in)directness and the formal realization of complaint components on complaint perception. Our experimental stimuli are designed on the basis of French-language authentic Twitter complaints which have been coded in terms of the presence of four constitutive complaint components: the complainable, the negative evaluation of the complainable, the person/company responsible for the complainable, and a wish for compensation. In our experiments, participants are asked to read Twitter complaints, and they are invited to assess them in terms of perceived strength, dissatisfaction, (im)politeness, and offensiveness. Our results indicate that not only the number but also the type of component that is formally realized shape complaint perception. We also find a positive correlation between perceived complaint strength and impoliteness. In addition, different formal realizations of the negative evaluation of the complainable have a different effect on complaint perception; in particular, negative emoji make the complaints softer and more polite. We also discuss methodological issues that have arisen while designing the experiments and that have to do with the operationalization of face-threat.
Chromatographic characterization of the fusion protein SARS-CoV-2 S protein (RBD)-hFc
Authors: García Laura , Ruíz Ingrid , Gómez José A. 
Published: April 2022

Abstract
At the Center of Molecular Immunology (Havana, Cuba), the fusion protein SARS-CoV-2 S protein (RBD)-hFc was synthesized linking the receptor-binding domain (RBD) of the SARS-CoV-2 virus and the crystallizable fragment of a human immunoglobulin. This fusion protein was used in the construction of a diagnostic device for COVID-19 called UMELISA SARS-CoV-2-IgG. Given the relevance of this protein, the characterization of three batches (A1, A2 and A3) was carried out. The molecular weight of the protein was determined to be 120 kDa, using sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE). Its isoelectric point was estimated between 8.3 and 9 by isoelectric focusing. The molecular integrity was evaluated by size exclusion liquid chromatography and SDS-PAGE after one year of the production of the protein; the presence of aggregates and fragments was detected. Batches A1 and A2 have a purity percentage higher than 95% and they can be used for the construction of new diagnostic devices.
Nuclear reaction data for medical and industrial applications: recent contributions by Egyptian cyclotron group
Authors: Al-Abyad Mogahed , Hassan H. Ebrahim , Mohamed Gehan Y. , Saleh Zeinab A. , Comsan M. Nassef H. , Azzam Ahmed 
Published: April 2022

Abstract
Measurement and evaluation of nuclear data of radioisotopes used as tracers are continuously underway in many laboratories to reach high accuracy for their use in production. We briefly mention some of the radionuclides useful for medical diagnostics and other industrial applications. The research group at the Egyptian cyclotron facility (EGCF) performed in collaboration with nuclear research centres and universities in many countries (Germany, Hungary, Finland, USA, Japan and Saudi Arabia) some measurements and evaluations of interesting nuclear reaction data. Nuclear reactions induced by p, d and α-particles on a wide variety of targets were extensively studied from threshold energy up to 50 MeV. Nuclear model code calculations, mainly using EMPIRE and TALYS, were performed for nuclear data validation. Proton and neutron activation of some industrially interesting samples were also studied as technological application of nuclear analytical techniques. Since the cyclotron facility is dedicated to development of the production routes of medical radioisotopes, this overview presents examples of optimization experiments to establish good production conditions.
Unrestricted, restricted, and regularized models for forecasting multivariate volatility
Authors: Anatolyev Stanislav , Staněk Filip 
Published: April 2022

Abstract
We perform an extensive investigation of different specifications of the BEKK-type multivariate volatility models for a moderate number of assets, focusing on how the degree of parametrization affects forecasting performance. Because the unrestricted specification may be too generously parameterized, often one imposes restrictions on coefficient matrices constraining them to have a diagonal or even scalar structure. We frame all three model variations (full, diagonal, scalar) as special cases of a ridge-type regularized estimator, where the off-diagonal elements are shrunk towards zero and the diagonal elements are shrunk towards homogeneity. Our forecasting experiments with BEKK-type Conditional Autoregressive Wishart model for realized volatility confirm the superiority of the more parsimonious scalar and diagonal model variations. Even though sometimes a moderate degree of regularization of the diagonal and off-diagonal parameters may be beneficial for forecasting performance, it does not regularly lead to tangible performance improvements irrespective of how precise is tuning of regularization intensity. Additionally, our results highlight the crucial importance of frequent model re-estimation in improving the forecast precision, and, perhaps paradoxically, a slight advantage of shorter estimation windows compared to longer windows.
First metrological validation of TwOGaSt, a new, absolute dTDLAS-trace-hygrometer, using the primary, coulometric, trace water vapour generator at PTB
Authors: Nwaboh Javis A. , Pratzler Sonja , Ebert Volker 
Published: April 2022

Abstract
We report the first realization of a TwOGaSt, a trace water optical gas standard (OGS) based on direct tunable diode laser absorption spectroscopy (dTDLAS). The TwOGaSt (Trace water Optical Gas Standard) hygrometer is equipped with a fiber-coupled DFB-laser emitting at 1.37 µm, a 36 m multi-pass astigmatic Herriott gas cell and a room-temperature InGaAs photo detector. TwOGaSt is capable of directly measuring absolute H2O concentration without any previous calibration of the spectrometer with reference gas mixtures. Water vapour amount fraction (= concentration) results delivered by TwOGaSt covering the concentration range from 10 to 350 µmol/mol (µmol/mol = ppm) were demonstrated and showed an optimum precision of 0.023 µmol/mol at a time resolution of 2 s. Further, we demonstrate the first metrological validation of this new OGS for absolute “calibration free” trace H2O amount fraction measurements in N2 and air, by comparing it with the primary coulometric trace water standard (CSFG) of PTB. The TwOGaSt results were in excellent agreement with the CSFG, PTB’s primary trace water vapor standard [1]. The relative standard uncertainty of the laser-hygrometer was determined to be is 1.2 %. This demonstrates that after SEALDH [2] and HAI [3], we now realized with TwOGaSt a laser-based, calibration-free, first-principles, optical gas standard (OGS) for the trace water vapor range, which is highly relevant for the upper troposphere and lower stratosphere (UT/LS) i. e. below 100 µmol/mol down to 4 µmol/mol (the tropopause H2O minimum).
Effects of Goldblatt hypertension on rats’ hippocampal cholinergic system
Authors: Sepehri Hamid , Ganji Farzaneh , Nazari Zahra , Vahid Marzieh 
Published: April 2022

Abstract

Background
The classical renin-angiotensin system (RAS) has an important role in the cardiovascular system and water homeostasis in the body. Recently, the existence of RAS with all of its components has been shown in the mammalian brain. RAS participates in many brain activities, including memory acquisition and consolidation. Since the cholinergic neurotransmission in the hippocampus is crucial for these functions, this study aims to evaluate the hippocampal angiotensin receptors (ATs) and choline acetyltransferase (ChAT) mRNA in the renovascular hypertensive rats in captopril- and losartan-treated hypertensive rats.

Methods
The rats were randomly divided into four groups of eight animals; sham, Goldblatt two kidney one clip (2K1C) hypertensive rats and Goldblatt 2K1C hypertensive rats received 5 mg/kg captopril and Goldblatt 2K1C hypertensive rats received 10 mg/kg losartan. After 8 days of treatment, the rats were sacrificed and angiotensin-converting enzyme (ACE), ChAT, AT1, and AT2 receptor mRNAs in the hippocampus of rats were assessed by real-time PCR. The Morris water maze test was applied to measure the cognitive functioning of the rats.

Results
Hypertensive rats showed impaired acquisition and memory function in the Morris water maze test. Treatment with ACE inhibitor (captopril) and AT1 receptor antagonist (losartan) reversed the observed acquisition and memory deficit in hypertensive rats. Overexpression of AChE, AT1, and AT2 and low expression of ChAT were noted in the hippocampus of rats with Goldblatt hypertension compared with that of the sham group. Treatment with captopril significantly reversed these changes, while treatment with losartan slightly reduced the mentioned effects.

Conclusion
The memory-enhancing effect of captopril in renovascular hypertensive rats might lead to increased hippocampal ChAT expression.
Characteristics Analysis of Digital Broadcast BioSignal Based on Fuzzy Integral
Authors: Yang Xi 
Published: April 2022

Abstract
In this work, an analysis method based on fuzzy integral was proposed to analyze the features of digital broadcast bio-signals. First, the signal preemphasis and normalized was conducted. Second, the signal was decomposed into different subspaces with fuzzy integrals and features of each subspace were extracted. Then standardization, dimension reduction, and characteristics analysis are conducted on the eigenvectors of each digital broadcast subspace signal to realize the characteristic analysis of digital broadcast signals. The experiment results show that the response time of this method is between 20 and 30 min, the cost is less than 10,000 RMB, and the detection probability is greater than 97 %, which indicate that the proposed method can quickly and accurately analyze the characteristics of digital broadcast bio-signals.
Evaluation of thyroid hormones and ferritin level in patients with β- thalassemia
Authors: Hussein Sura Zahim 
Published: April 2022

Background and aims. Thalassemia is a condition that affects hemoglobin synthesis and is one of the most common hereditary illnesses in the world. Patients with thalassemia major require several blood transfusions. Multiple blood transfusions cause thyroid dysfunction, which leads to iron excess.
Methods. From August 2019 to January 2020, serum samples were obtained from 90 persons, 30 of whom were healthy, and 60 (46 male and 44 female) with β-thalassemia major, aged 5-20 years, who visited the thalassemia care center at Salah Aldeen General Hospital in Tikrit city.
Results. Patients had a significant increase (P≤0.01) in T4 and TSH hormones when compared to controls, whereas T3 was also significantly higher (P≤0.05) than in controls. Compared to controls, the level of ferritin had a very significant increase (P≤0.01) in all the study patients with beta-thalassemia, male and female.
Conclusions. Thyroid disorders are common in β-thalassemia patients who have been transfused multiple times.
Causes of revision after total hip arthroplasty in an orthopedics and traumatology regional center
Authors: Oltean-Dan Daniel , Apostu Dragos , Tomoaia Gheorghe , Kerekes Kinga , Paiusan Mihai-Gheorghe , Bardas Ciprian-Alin , Benea Horea-Rares-Ciprian 
Published: April 2022

Background and aim. Despite the great success of primary total hip arthroplasty (THA), the number of revisions has significantly increased over the past years. The objectives of the study were to investigate the main causes that lead to revision of THA, the time interval between primary THA and revision, and the results of the revision surgery. We also assessed whether there was any correlation between the patients’ age, BMI, diagnosis for primary THA and the cause of failure.
Methods. This paper retrospectively analyzed 189 patients with THA revision surgery performed over a six-year period, between 2015 and 2020. Patients’ charts were reviewed to collect data on patient’s demographics, patient's primary THA and revision procedures, and the time interval between primary THA and revision surgery. Patients were divided into 3 groups according to the time interval THA-revision: group I (<5 years), group II (5-10 years) and group III (>10 years).
Results. The patients’ mean age (82 men/107 women) was 69.59±7.85 years (range 31-92 years). The most frequent revision cause was aseptic loosening (52%), followed by periprosthetic fractures (18%), infection (17%) and persistent hip instability (12%). Patients' age (r=0.43) and BMI (r=-0.4) had low correlation with the time interval between THA and revision.
Conclusions. The main causes for revision THA within less than five years are infection and instability, while revision for aseptic loosening is performed especially after five years from the primary THA. Osteonecrosis, post-traumatic osteoarthritis and femoral neck fracture are correlated with a higher incidence of revision at less than five years from the primary THA
Stakeholder Perspectives on Hospitalization Decisions and Shared Decision-Making in Bronchiolitis
Authors: Aronson Paul L. , Schaeffer Paula , Ponce Kortney A. , Gainey Taylor K. , Politi Mary C. , Fraenkel Liana , Florin Todd A. 
Published: April 2022

OBJECTIVES
Our objective was to elicit clinicians’ and parents’ perspectives about decision-making related to hospitalization for children with bronchiolitis and the use of shared decision-making (SDM) to guide these decisions.

METHODS
We conducted individual, semistructured interviews with purposively sampled clinicians (pediatric emergency medicine physicians and nurses) at 2 children’s hospitals and parents of children age &lt;2 years with bronchiolitis evaluated in the emergency department at 1 hospital. Interviews elicited clinicians’ and parents’ perspectives on decision-making and SDM for bronchiolitis. We conducted an inductive analysis following the principles of grounded theory until data saturation was reached for both groups.

RESULTS
We interviewed 24 clinicians (17 physicians, 7 nurses) and 20 parents. Clinicians identified factors in 3 domains that contribute to hospitalization decision-making for children with bronchiolitis: demographics, clinical factors, and social-emotional factors. Although many clinicians supported using SDM for hospitalization decisions, most reported using a clinician-guided decision-making process in practice. Clinicians also identified several barriers to SDM, including the unpredictable course of bronchiolitis, perceptions of parents’ preferences for engaging in SDM, and parents’ emotions, health literacy, preferred language, and comfort with discharge. Parents wanted the opportunity to express their opinions during decision-making about hospitalization, although they often felt comfortable with the clinician’s decision when adequately informed.

CONCLUSIONS
Although clinicians and parents of children with bronchiolitis are supportive of SDM, most hospitalization decision-making is clinician guided. Future investigation should evaluate how to address barriers and implement SDM in practice, including training clinicians in this SDM approach.
ВЗАЄМОДІЯ ОКСИДІВ ЛАНТАНУ, ЛЮТЕЦІЮ ТА ІТЕРБІЮ ЗА ТЕМПЕРАТУРИ 1500 °С
Authors: В. Чудінович Ольга , Биков Олександр І. , Самелюк Анатолій В. 
Published: April 2022

Фазові рівноваги у потрійній системі La2O3–Lu2O3–Yb2O3 за 1500 °С досліджено за допомогою рентгенофазового аналізу (РФА) та скануючої електронної мікроскопії у всьому інтервалі концентрацій. Досліджувані зразки різного складу готували з розчинів нітратів шляхом випарювання, сушіння та прожарювання при 800 °C. Для вивчення фазових рівноваг за 1500 °C зразки піддавали термічній обробці у дві стадії: за 1100 °C і за 1500 °C (протягом 70 год на повітрі). Фазовий склад отриманих зразків досліджували рентгенофазовим (DRON-3) та локальним рентгеноспектральним (Superprobe-733, JEOL, Японія, Пало-Альто, Каліфорнія) методами. У системі утворюються тверді розчини на основі різних поліморфних модифікацій вихідних оксидів та упорядкованих фаз типу перовскіту LaLuO3 (LaYbO3). Нових фаз у системі не знайдено. Побудовано ізотермічний перезріз діаграми стану системи La2O3–Lu2O3–Yb2O3 за 1500 °С. Встановлено, що в потрійній системі La2O3–Lu2O3–Yb2O3 утворюються поля твердих розчинів на основі гексагональної (A) модифікації La2O3, кубічної (C) модифікації Y2O3 і Lu2O3, а також упорядкованих фаз типу перовскіту LaLuO3 і LaYbO3 (R). Розраховано параметри елементарних комірок для твердих розчинів. У системі La2O3–Lu2O3–Yb2O3 за 1500 °С утворюється нескінченний ряд твердих розчинів на основі фази типу перовскіту. Максимальна розчинність Lu2O3 у R-фазі ~6 мол. % у перерізі Lu2O3 –(50 мол. % La2О3 – 50 мол. % Yb2О3). Область гомогенності R-фази простягається від 46 до 56 мол. % La2O3 у перерізі La2O3–(50 мол. % Lu2O3–50 мол. % Yb2O3).
A língua da vida e a vida da língua na arquitetônica estética bakhtiniana
Authors: Boeno Neiva de Souza 
Published: April 2022

BAKHTIN, Mikhail Mikhailovich. [1920-1924]. Lendo Razlúka de Púchkin: a voz do outro na poesia lírica. Organização, tradução, ensaio e notas de Marisol Barenco de Mello, Mario Ramos Francisco e Júnior Alan Silus. Prefácio de Augusto Ponzio. São Carlos: Pedro & João Editores, 2021. 93 p.
Cronbach-alfa: vele vagy nélküle?
Authors: T. Kárász Judit , Nagybányai Nagy Olivér , Széll Krisztián , Takács Szabolcs 
Published: April 2022

Háttér és célkitűzésekTanulmányunkban arra vállalkozunk, hogy egy olyan eljárást mutassunk be, melynek segítségével megalapozottabban használható az eddig is széles körben alkalmazott Cronbach-alfa mutató.MódszerElemzésünkben egy olyan, egyszerűen elkészíthető szimulációs eljárás alkalmazását javasoljuk, melynek segítségével az adatainkhoz igazodva egy, az adott helyzetben elvárt együttes konzisztenciaszint (át-lagos korrelációs szint) eléréséhez szükséges Cronbach-alfa viszonyítási pontot adhatunk.EredményekElemzésünk ugyanis rámutat arra, hogy nemcsak a kérdőívben használt itemek számától, hanem a kérdőívben alkalmazott Likert-skála értékeinek számától is függővé kellene tenni a Cronbach-alfa mutató viszonyítási pontját. Szintén eredménye az elemzésünknek, hogy az alkalmazott formulával nem a hagyományosan meghatározott 0,7-es értéket kapjuk, hanem mind a Likert-skálától, mind pedig az itemek számától, illetve az elvárt, itemek közötti kapcsolati erősségtől függővé lehet tenni az elvárt Cronbach-alfa értéket.KövetkeztetésekA javasolt algoritmus segítségével a Cronbach-alfa mutatónak egy olyan alkalmazását lehet megvalósítani, mely alkalmas arra, hogy a kérdőívünkhöz (a válaszadási Likert-skálához) igazodva, illetve a skála itemszáma alapján referenciapontot adhassunk e megbízhatósági mutatóhoz.Background and purposeIn our study, we undertake to present a procedure that allows a more well-founded use of the Cronbach’s alpha index, which has been widely used so far.MethodIn our analysis, we propose the use of a simple simulation procedure, which can be used in a given situation to provide a Cronbach’s alpha reference point to achieve the expected overall consistency level (average correlation level).ResultsThis is because our analysis points out that the Cronbach’s alpha index should be made dependent not only on the number of items, but also on the number of Likert scale values used in the questionnaire. It is also the result of our analysis that the applied formula does not give the traditionally determined value of 0.7, but the expected Cronbach’s alpha value dependent on both the Likert scale and the number of items, as well as the expected relationship strength between items.ConclusionWith the help of the proposed algorithm, an application of the Cronbach’s alpha index can be implemented, which is suitable to add a reference point to this reliability index based on our questionnaire (the answer Likert scale) and the number of items on the scale.
A lélek képalkotói és laborvizsgálatai. A projektív tesztek és a kérdőívek integrált alkalmazása a gyermek és serdülő pszichodiagnosztikában
Authors: Jambrik Máté , Posta Sára , Erni Ildikó , Csenki Laura , Cserép Melinda , Ábrahám Ildikó , Pászthy Bea 
Published: April 2022

A jelen tanulmány célja, hogy a gyermek és a serdülő pszichodiagnosztikában használt kérdőíves és projektív eszközök eredményeinek diszkrepanciáját megvitassa. Stephen Finn véleménye szerint mind a két tesztelési forma megbízható, azonban más működési elven alapulnak. Előfordulhat, hogy a két tesztelési forma látszólagosan más eredményt mutat, azonban a diszkrepancia megértése értékes információt adhat a vizsgálni kívánt személyről. Cikkünkben kitérünk arra, hogy a különböző tesztelési eljárások (kérdőívek, projektív tesztek) hogyan működnek, illetve arra is, hogy milyen szerepük lehet a pszichodiagnosztikai folyamatban. Az egyén viselkedésének megértése szempontjából a kérdőívek a laboratóriumi tesztekkel, a projektív tesztek pedig az agyi képalkotó eljárásokkal hozhatók párhuzamba az orvosi diagnosztikában. A projektív eljárások ingeranyagtól függően más módon készítenek „felvételeket” a lélekről, mint ahogy a CT, a PET és az MR a képalkotó diagnosztikában az agyról. A kérdőívek és a projektív eszközök integrált alkalmazása gyakran pontosabb diagnózisalkotást és kezelési terv felállítását tesz lehetővé.The current study aims to discuss the distinction between the results of various tools used in child and adolescent psychodiagnostic, namely between questionnaires and projective measures. According to Stephen Finn, both methods are reliable but operate based on different principles. It may seem that the two methods of testing present different responses, but understanding discrepancies can provide valuable information about the subject. In our article, we discuss how these various testing methods (questionnaires, projective tests) work, and how they may play a role in the psychodiagnostic process. In our study, we consider for understanding human behaviour, non-projective tests being compared to laboratory tests and projective measures being compared to brain imaging techniques. Projective procedure stimuli elicit different features of the subject’s personality, analogous to imaging diagnostics of medical science (CT, PET and MR). The discrepancy between questionnaires and projective methods can have important indications for both diagnosis and therapy.