bluuebunny/crossref_metadata_2025_split huggingface dataset:
COVID-19 screening: use of an artificial neural network
Authors: Roustaei Narges , Allahyari Elahe 
Published: December 2021

ObjectivesCOVID-19 is the biggest pandemic of the 21st century. The disease can be influenced by various sociodemographic factors and can manifest as clinical, pulmonary and gastrointestinal symptoms. This study used an artificial neural network (ANN) model with important sociodemographic factors as well as clinical, pulmonary and gastrointestinal symptoms to screen patients for COVID-19. Patients themselves can screen for these symptoms at home.MethodsData on all registered patients were extracted in autumn. The best ANN model was selected from different combinations of connections, some hidden layers and some neurons in each hidden layer. In this study, 70% of the data were used in the network training process and the remaining 30% were used to evaluate the function of the multilayer, feed-forward, back-propagation algorithm.ResultsThe sensitivity and specificity of the ANN model in diagnosing patients with COVID-19 were 94.5% and 17.4%. In order of priority, clinical symptoms, sociodemographic factors, pulmonary symptoms and gastrointestinal symptoms were important predictive factors for COVID-19 using the ANN model. Screening patients for COVID-19 using clinical symptoms and sociodemographic factors (80% importance) remains essential.ConclusionsHome monitoring of oxygen saturation and body temperature as well as old age and drug addiction can be helpful in self-screening symptoms of COVID-19 at home, thereby preventing unnecessary visits to medical centres and reducing burden on medical services.
Significance of initial hemoglobin levels in severe trauma patients without prehospital fluid administration: a single-center study in Japan
Authors: Kawai Yasuyuki , Fukushima Hidetada , Asai Hideki , Takano Keisuke , Okuda Akinori , Tada Yusuke , Maegawa Naoki , Bolstad Francesco 
Published: December 2021

ObjectivesHemoglobin (Hb) levels have been considered to remain stable in the early stages of bleeding due to trauma. However, several studies have reported that rapid compensatory fluid shifts cause Hb dilution earlier than previously thought. These reports are from Western countries where it is standard protocol to administer fluids during an emergency, making it almost impossible to eliminate the effect of prehospital intravenous fluid administration on Hb levels. This study aimed to determine the relationship between Hb levels and severity of injury on arrival at the hospital in severe trauma patients without prehospital intravenous fluid administration.MethodsThis single-center observational retrospective study included patients with Abbreviated Injury Scale scores of 3 or above between 2008 and 2014. In Japan, prehospital life-saving technicians were not allowed to administer intravenous fluids until 2014. We investigated whether the difference between the measured blood Hb level at arrival and the corresponding standard blood Hb level for each age group and sex reported in the national survey was associated with the severity of injury and the need for hemostasis.ResultsIn total, 250 patients were included in this study (median age, 46 years; male patients, 183). The median time from injury to arrival at the hospital was 45 min, and there was no statistical correlation with the initial Hb level on arrival (ρ=0.092, p=0.14). When the study subjects were stratified into four groups according to the initial Hb levels, lower Hb levels correlated with higher rates of requirement for hemostatic interventions (p=0.02) and mortality (p=0.02). In addition, lower Hb levels were associated with the need for hemostasis.ConclusionIn severe trauma patients without prehospital intravenous fluid administration, decreased Hb levels on arrival may be associated with the severity of trauma and with the need for hemostasis.Level of evidenceLevel IV.
Mode spectra of magnetic and dielectric plasmon spheres obtained from Mie scattering and free oscillation theories
Authors: Krupka Jerzy , Salski Bartlomiej , Pacewicz Adam , Kopyt Pawel 
Published: December 2021

Abstract
This paper presents Mie scattering theory as compared to rigorous electromagnetic theory of free oscillations in magnetic and electric plasmon spheres. It is shown that the maxima of Mie scattering and absorption spectra well correspond to resonance frequencies of plasmon modes occurring in dielectric and magnetic spheres, similarly as it takes place for ordinary dielectric resonator modes. Mie theory is well applicable to determine resonance frequencies and scattering parameters of spherical plasmons. However, this theory cannot be applied to determine intrinsic properties of modes induced in the object by the incident plane wave, like quality factors. On the contrary, rigorous electromagnetic theory of free oscillations allows one to determine the complex resonance frequency of each mode that can occur in a given object, and the corresponding quality factor accounting for various kind of losses, including medium and radiation losses. The advantage of the free oscillations theory, as shown in this paper, is in the determination of the quality factors of modes occurring in magnetic plasmon spheres made of a strongly dispersive magnetic medium.

Graphical Abstract
On Hermitian Solutions of the Generalized Quaternion Matrix Equation
A
X
B
+
C
X

D
=
E
Authors: Tian Yong , Liu Xin , Yuan Shi-Fang 
Published: December 2021

The paper deals with the matrix equation

A
X
B
+
C
X

D
=
E

over the generalized quaternions. By the tools of the real representation of a generalized quaternion matrix, Kronecker product as well as vec-operator, the paper derives the necessary and sufficient conditions for the existence of a Hermitian solution and gives the explicit general expression of the solution when it is solvable and provides a numerical example to test our results. The paper proposes a unificated algebraic technique for finding Hermitian solutions to the mentioned matrix equation over the generalized quaternions, which includes many important quaternion algebras, such as the Hamilton quaternions and the split quaternions.
Prevalence and Risk Factors of Kaposi’s Sarcoma-Associated Herpesvirus Infection among Han and Uygur Populations in Xinjiang, China
Authors: Wen Zhi , Li Wenli , Fang Yuan , Zhou Chang , Lin Kang , Wu Huanwu , Zhang Yiting , Zhu Yulin , Xu Xingchen , Zeng Yan , Lu Baojing , Wang Linding 
Published: December 2021

Kaposi’s sarcoma-associated herpesvirus (KSHV) is the causative agent of Kaposi’s sarcoma (KS), which is endangering human health worldwide, especially in Africa, Europe, the United States, and parts of Asia. The aim of this study was to investigate the prevalence of KSHV in Xinjiang. Three KSHV recombinant proteins (ORF65, ORF73, and K8.1) were used to detect KSHV infection. The serum samples to be tested were detected by an indirect ELISA method. The overall infection rate of KSHV in Xinjiang was 25.60%, with a higher infection rate in the Uygur population of 29.79%. After adjusting for possible confounders, Uygur (OR = 3.95, 95% CI 2.64–6.12,

P
<
0.001

), agriculture and livestock (OR = 1.60, 95% CI 1.20–2.17,

P

= 0.002), age ≤ 50 years (OR = 1.50, 95% CI 1.13–2.00,

P

= 0.006), and predominantly meat-based diet (OR = 1.72, 95% CI 1.11–2.78,

P

= 0.018) were significantly associated with the odds of KSHV seropositivity correlation. Three unique sequences of KSHV were obtained in this study; genotypic analysis showed that the three unique sequences were all subtype A2.
Relationship Between Myocardial Injury During Index Hospitalization for SARS‐CoV‐2 Infection and Longer‐Term Outcomes
Authors: Weber Brittany , Siddiqi Hasan , Zhou Guohai , Vieira Jefferson , Kim Andy , Rutherford Henry , Mitre Xhoi , Feeley Monica , Oganezova Karina , Varshney Anubodh S. , Bhatt Ankeet S. , Nauffal Victor , Atri Deepak S. , Blankstein Ron , Karlson Elizabeth W. , Di Carli Marcelo , Baden Lindsey R. , Bhatt Deepak L. , Woolley Ann E. 
Published: December 2021

Background
Myocardial injury in patients with COVID‐19 is associated with increased mortality during index hospitalization; however, the relationship to long‐term sequelae of SARS‐CoV‐2 is unknown. This study assessed the relationship between myocardial injury (high‐sensitivity cardiac troponin T level) during index hospitalization for COVID‐19 and longer‐term outcomes.

Methods and Results
This is a prospective cohort of patients who were hospitalized at a single center between March and May 2020 with SARS‐CoV‐2. Cardiac biomarkers were systematically collected. Outcomes were adjudicated and stratified on the basis of myocardial injury. The study cohort includes 483 patients who had high‐sensitivity cardiac troponin T data during their index hospitalization. During index hospitalization, 91 (18.8%) died, 70 (14.4%) had thrombotic complications, and 126 (25.6%) had cardiovascular complications. By 12 months, 107 (22.2%) died. During index hospitalization, 301 (62.3%) had cardiac injury (high‐sensitivity cardiac troponin T≧14 ng/L); these patients had 28.6%, 32.2%, and 33.2% mortality during index hospitalization, at 6 months, and at 12 months, respectively, compared with 4.1%, 4.9%, and 4.9% mortality for those with low‐level positive troponin and 0%, 0%, and 0% for those with undetectable troponin. Of 392 (81.2%) patients who survived the index hospitalization, 94 (24%) had at least 1 readmission within 12 months, of whom 61 (65%) had myocardial injury during the index hospitalization. Of 377 (96%) patients who were alive and had follow‐up after the index hospitalization, 211 (56%) patients had a documented, detailed clinical assessment at 6 months. A total of 78 of 211 (37.0%) had ongoing COVID‐19–related symptoms; 34 of 211 (16.1%) had neurocognitive decline, 8 of 211 (3.8%) had increased supplemental oxygen requirements, and 42 of 211 (19.9%) had worsening functional status.

Conclusions
Myocardial injury during index hospitalization for COVID‐19 was associated with increased mortality and may predict who are more likely to have postacute sequelae of COVID‐19. Among patients who survived their index hospitalization, the incremental mortality through 12 months was low, even among troponin‐positive patients.
Association of Chinese Visceral Adiposity Index and Its Dynamic Change With Risk of Carotid Plaque in a Large Cohort in China
Authors: Bi Haoran , Zhang Yanyan , Qin Pei , Wang Changyi , Peng Xiaolin , Chen Hongen , Zhao Dan , Xu Shan , Wang Li , Zhao Ping , Lou Yanmei , Hu Fulan 
Published: December 2021

Background
We aimed to evaluate the association between the Chinese visceral adiposity index (CVAI) and its dynamic change and risk of carotid plaque based on a large Chinese cohort.

Methods and Results

This cohort included 23 522 participants aged 20 to 80 years without elevated carotid intima‐media thickness and carotid plaque at baseline and who received at least 2 health checkups. CVAI was calculated at baseline and at every checkup. The dynamic change in CVAI was calculated by subtracting CVAI at baseline from that at the last follow‐up. Cox proportional hazard regression model was used to estimate hazard ratios (HRs) and 95% CIs. The restricted cubic spline was applied to model the dose‐response association between CVAI and carotid plaque risk. During the 82 621 person‐years of follow‐up, 5987 cases of carotid plaque developed (7.25/100 person‐years). We observed a significant positive correlation between CVAI and carotid plaque risk (HR, 1.53; 95% CI, 1.48–1.59 [
P
<0.001]) in a nonlinear dose‐response pattern (
P
nonlinearity
<0.001). The sensitivity analyses further confirmed the robustness of the results. The association was significant in all subgroup analyses stratified by sex, hypertension, and fatty liver disease except for the diabetes subgroup. The association between CVAI and carotid plaque risk was much higher in men than in women. No significant association was identified between change in CVAI and carotid plaque risk.

Conclusions
CVAI was positively associated with carotid plaque risk in a nonlinear dose‐response pattern in this study. Individuals should keep their CVAI within a normal level to prevent the development of carotid plaque.
Music, Theatre, and Diplomacy: The Paris Opéra during the Second Empire
Authors: Everist Mark 
Published: December 2021

Abstract
One of the first accomplishments of the Second Empire (1852–70) was to bring the Opéra under the control of a committee of the most highly placed politicians in the land. While this had far-reaching consequences for the development of repertory in the capital and beyond, it also opened up the possibility of using the Opéra as a locus of diplomatic activity, and major works and productions were made to work for diplomatic purposes. The Opéra emerged as a site of four types of diplomatic activities: the spectacle of state visits, the celebration and monumentalizing of military victories, the restoration and maintenance of good relations, and the promotion of Napoléon’s imperial project. Occasionally, as at the end of the “Crimean war,” the Opéra served as one of the sites for a series of prolonged negotiations that would lead to formal treaties.
(Non)fuzziness of Identity in the Spanish-Portuguese Borderland: The Case of the Linguistic Community of A Fala de Xálima (Spain)
Authors: Dondelewski Bartosz 
Published: December 2021

(Non)fuzziness of Identity in the Spanish-Portuguese Borderland: The Case of the Linguistic Community of A Fala de Xálima (Spain)This article analyses the social dynamics observable in a conversation with a minoritized language activist about the neighbouring speech communities. The study demonstrates that the local variety, along with its socially meaningful context, can be an important factor for the interactionally constructed local identity. The interviewee is a member of the community of practice of A Fala de Xálima, a Galician-Portuguese Romance minoritized language with about 5,000 speakers; they live in the Spanish province of Cáceres (on the border with Portugal). The analysis applies the ontological and epistemological principles of sociocultural linguistics in order to identify some indexical interactional orientations, such as stance and ideology. (Nie)ostrość tożsamości na pograniczu hiszpańsko-portugalskim – przypadek społeczności językowej A Fala de Xálima (Hiszpania)Celem artykułu jest analiza dynamik społecznych, które można zaobserwować w konwersacji z aktywistą na rzecz języka mniejszościowego, prowadzonej na temat sąsiednich społeczności językowych. W dalszej kolejności, celem jest ukazanie, że lokalna odmiana językowa, brana pod uwagę wraz ze swoim społecznie znaczącym kontekstem, może znacząco wpływać na lokalną tożsamość językową, budowaną w sposób interakcjonalny. Rozmowa została przeprowadzona z członkiem wspólnoty praktyki A Fala de Xálima – języka mniejszościowego należącego do galicyjsko-portugalskiej grupy języków romańskich – która liczy ok. 5000 użytkowników mieszkających w hiszpańskiej prowincji Cáceres (na granicy z Portugalią). W analizie autor posługuje się zasadami ontologiczno-epistemologicznymi tzw. językoznawstwa społeczno-kulturowego i przy ich użyciu opisuje wybrane orientacje indeksykalne o charakterze interakcjonalnym, takie jak pozycjonowania społeczne (ang. stance) i ideologie.
Piśmiennictwo religijne polskich Tatarów w okresie powojennym (1945–1989)
Authors: Łyszczarz Michał , Moch Michał 
Published: December 2021

Religious Literature of Polish Tatars in the Post-War Period (1945–1989)The article opens with a general overview of the socio-political situation of the Tatars and the specificity of their religiosity in the People’s Republic of Poland (1945–1989), leading to the main part: an analysis of ephemeral religious prints created and distributed by Polish Tatars. The description of the sources is introduced with a presentation of the broad socio-political context which determined the functioning of this minority after World War II. The study characterises the basic types of religious literature of the Tatars: (a) traditional manuscripts, (b) periodicals and publishing activities, (c) ephemeral prints. It also considers the significance of these types of literature in the period between 1945 and 1989. The analysis of seven prayer books and three teaching materials provides the basis of general observations concerning ephemeral religious prints created by Polish Tatars after World War II. The analysed sources have not as yet been studied by researchers. Piśmiennictwo religijne polskich Tatarów w okresie powojennym (1945–1989)Artykuł rozpoczyna się od przybliżenia położenia społeczno-politycznego Tatarów w PRL-u oraz specyfiki ich religijności, by dojść do szczegółowych kwestii, związanych z analizą religijnych druków ulotnych opracowanych przez polskich Tatarów. Charakterystykę opartą na źródłach poprzedziło zatem przedstawienie szerokiego kontekstu społeczno-politycznego, który determinował sposób funkcjonowania tej mniejszości w Polsce po II wojnie światowej. Autorzy scharakteryzowali podstawowe typy piśmiennictwa religijnego Tatarów: a) tradycyjne rękopiśmiennictwo, b) czasopiśmiennictwo i działalność wydawniczą, c) druki ulotne. Zwrócono przy tym uwagę na znaczenie poszczególnych rodzajów piśmiennictwa w okresie 1945–1989. Charakterystyki religijnych druków ulotnych, opracowanych przez polskich Tatarów po II wojnie światowej, dokonano na przykładzie 7 modlitewników oraz 3 materiałów dydaktycznych. Dokumenty te dotąd nie były przedmiotem badań naukowych.
O polszczyźnie i wielojęzyczności społeczności polskiej w Łatgalii
Authors: Golachowska Ewa 
Published: December 2021

On the Polish Language and the Multilingualism of the Polish Community in LatgaleReview Kristīne Kuņicka, Polacy i język polski w Łatgalii / Poļi un poļu valoda Latgalē [Poles and the Polish Language in Latgale], Daugavpils: Latgales Reklāma, 2020, 263 pp.This article is a review of Kristīne Kuņicka’s Polacy i język polski w Łatgalii / Poļi un poļu valoda Latgalē [Poles and the Polish Language in Latgale]. The author discusses the contemporary sociolinguistic situation of the Polish minority in Latgale, Latvia. An important aspect of the book is that it takes into consideration the Polish language of the young generation of Poles in the region. O polszczyźnie i wielojęzyczności społeczności polskiej w ŁatgaliiRecenzjaKristīne Kuņicka, Polacy i język polski w Łatgalii / Poļi un poļu valoda Latgalē, Daugavpils: Latgales Reklāma, 2020, 263 ss.Tekst O polszczyźnie i wielojęzyczności społeczności polskiej w Łatgalii jest recenzją książki Kristīne Kuņickiej Polacy i język polski w Łatgalii / Poļi un poļu valoda Latgalē. Autorka omawia współczesną sytuację socjolingwistyczną mniejszości polskiej w Łatgalii na Łotwie. Szczególnym walorem książki jest uwzględnienie polszczyzny młodego pokolenia Polaków w Łatgalii.
Profesor Iryda Grek-Pabisowa (1932–2021)
Authors: Ostrówka Małgorzata , Jankowiak Mirosław 
Published: December 2021

Professor Iryda Grek-Pabisowa (1932–2021)This article presents the profile of Iryda Grek-Pabisowa, a renowned linguist, associated with the Institute of Slavic Studies, Polish Academy of Sciences for sixty years. She was a long-serving head of North Borderland Polish, and the deputy director of the Institute for two terms (1996–2003). She was a pioneer of research on the language and culture of Old Believers in Poland, and the language of Poles in Belarus and Lithuania. The most important research areas on which she focused were dialectology and lexicography: the study and description of the subdialects of Old Believers living in Poland (e.g. A Dictionary of the Dialect of Old Believers Living in Poland), the Russian language (e.g. The Great Russian-Polish Dictionary) and North Borderland Polish (7 monographs and A Dictionary of the Spoken Polish of the North-Eastern Borderland). She is the author or co-author of about 160 articles, 11 monographs and 7 dictionaries. In 1974–2003 she was associated with the journal Acta Baltico-Slavica, initially as its secretary and then editor-in-chief. Profesor Iryda Grek-Pabisowa (1932–2021) Opracowanie przedstawia sylwetkę Irydy Grek-Pabisowej, znanej językoznawczyni przez 60 lat związanej z Instytutem Slawistyki Polskiej Akademii Nauk. Przez wiele lat kierowała Pracownią Polszczyzny Północnokresowej. Przez dwie kadencje pełniła funkcję wicedyrektorki ds. naukowych w IS PAN (1996–2003). Była prekursorką badań języka i kultury staroobrzędowców w Polsce oraz języka Polaków na Białorusi i Litwie. Do najważniejszych kierunków badawczych należały dialektologia i leksykografia: badanie i opis gwar staroobrzędowców mieszkających w Polsce (m.in. Słownik gwary starowierców mieszkających w Polsce), język rosyjski (m.in. Wielki słownik rosyjsko-polski) oraz polszczyzna północnokresowa (7 monografii oraz Słownik mówionej polszczyzny północnokresowej). Jest autorką lub współautorką około 160 artykułów, 11 monografii i 7 słowników. W latach 1974–2003 była związana z rocznikiem „Acta Baltico-Slavica”, początkowo jako sekretarz, a następnie jako redaktor naczelna.
Feminativi v luči sodobne slovenske glasbe
Authors: Markežič Tjaša 
Published: December 2021

Feminitives in Contemporary Slovene Music This article focuses on the use of feminine forms derived from masculine nouns in contemporary Slovene music. Feminine nouns denoting persons were extracted from selected song lyrics and analysed in terms of their word formation. Based on the analysis of feminine forms derived from masculine nouns it is suggested that in music women are often sexualised – their overall image implies sexuality and is clearly based on male fantasies; linguistic reality often reflects social reality. Feminatywy we współczesnej muzyce słoweńskiejNiniejszy artykuł skupia się na wykorzystaniu form żeńskich pochodzących od rzeczowników rodzaju męskiego we współczesnej muzyce słoweńskiej. Rzeczowniki żeńskie oznaczające osoby wyekstrahowano z wybranych tekstów piosenek i zanalizowano pod względem słowotwórczym. Analiza form żeńskich pochodzących od rzeczowników rodzaju męskiego wskazuje, że w muzyce kobiety są często seksualizowane – ich ogólny wizerunek implikuje seksualność i jest wyraźnie oparty na męskich fantazjach; rzeczywistość językowa często odzwierciedla rzeczywistość społeczną.