bluuebunny/crossref_metadata_2025_split huggingface dataset:
Online symptoms screening and testing of Covid-19 through RT-LAMP saliva of students and asymptomatic employees in a public school in Brazil.
Authors: Costa Silvia Figueiredo , Manuli Erika Regina , Oliveira Beatriz Araujo , Leal Fábio Eudes , Souza Edgar Casado Barreta , Illi Ana Paula , de Paiva Ana Paula Barreto , Fachini Camila da Silva , Cano Beatriz Aparecida Munhoz , Barros Priscila de Lima , Capuani Ligia , Domingues Helves Humberto , Passos-Bueno Maria Rita dos Santos e , Sabino Ester Cerdeira 
Published: March 2022

Abstract
Objective
To evaluate a respiratory symptoms screening system and test asymptomatic individuals (high school students and employees) at a public school in Brazil.
Methods
SARS-CoV-2 reverse transcription loop-mediated isothermal amplification (RT-LAMP) of saliva samples was performed weekly.
Results
A total of 969 samples were tested (mean of 108 tests per week). No asymptomatic participants tested positive for COVID-19, and no cases of COVID-19 transmission occurred at school despite the high transmissibility of the Delta variant, the local predominant variant at the time of the study.
Conclusion
Implementation of an online system of respiratory symptom screening and testing of COVID-19 through saliva in asymptomatic individuals is a feasible, low-cost and practical option to be used, especially in low-income countries.
Electrochemical oxygen generator with 99.9% oxygen purity and high energy efficiency
Authors: Zhang Yu , Xie Ke , Zhou Fangyao , Wang Feiteng , Xu Qian , Hu Jun , Ding Honghe , Li Peng , Tan Yi , Li Deming , Zhu Junfa , Zhao Changming , Lin Sen , Wu Yuen 
Published: March 2022

Abstract
Under the growing crisis of coronavirus disease 2019 pandemic, the global medical system is facing the predicament of an acute shortage of medical-grade oxygen (O2, ≥ 99.5% purity). Herein, we manufactured an oxygen generation device relying on electrochemical technology. The performance of electrochemical oxygen generator (EOG) was remarkably improved to a practically applicable level, achieving long-term (>200 h), stable, and quick production (>1.5L/min) of high purity O2 (99.9%) under high energy efficiency (496 L/kW·h), viasimultaneous optimizations for intrinsic electrochemical reaction mechanism, electrocatalysts, and external cell structure. The EOG also presents powerful competitiveness in user experience, which finds expression in high portability (4.7 kg), nearly instant O2 production (<1 s), and a quiet working condition (<39 dB). The EOG shows great potential to substitute commercial pressure swing adsorption O2 generation devices, which may significantly impact the traditional oxygen production industry.
Neuromorphic Decoding of Spinal Motor Neuron Behaviour during Natural Hand Movements for a New Generation of Wearable Neural Interfaces
Authors: Tanzarella Simone , Iacono Massimiliano , Donati Elisa , Farina Dario , Bartolozzi Chiara 
Published: March 2022

Abstract

We propose a neuromorphic framework to process the activity of human spinal motor neurons for movement intention recognition. This framework is integrated in a non-invasive interface that decodes the activity of motor neurons innervating intrinsic and extrinsic hand muscles. One of the main limitations of current neural interfaces is that machine learning models cannot exploit the efficiency of the spike encoding operated by the nervous system. Spiking-based pattern recognition would detect the spatio-temporal sparse activity of a neuronal pool and lead to adaptive and compact implementations, eventually running locally in embedded systems. Emergent Spiking Neural Networks (SNN) have not yet been used for processing the activity of in-vivo human neurons. Here we developed a convolutional SNN to process a total of 467 spinal motor neurons whose activity was identified in 5 participants while executing 10 hand movements. The classification accuracy approached 0.95 ± 0.14 for both isometric and non-isometric contractions. These results show for the first time the potential of highly accurate motion intent detection by combining non-invasive neural interfaces and SNN.
Mieloma múltiplo: o subdiagnóstico em indivíduos idosos com queixas osteomusculares
Authors: Rusth Costa Pacheco Carolina , Freitas Lopes Vanessa , Alves dos Santos Priscila , Cezario Costa Reis Bruno 
Published: March 2022

O mieloma múltiplo (MM) é uma discrasia plasmocitária configurando-se como o segundo câncer hematológico mais prevalente na população mundial e com maior incidência nos indivíduos acima de 50 anos de idade. Com base na revisão bibliográfica de periódicos e coleta de dados oficiais obtidos pela Secretaria de Vigilância em Saúde (SVS), esse artigo objetiva estabelecer a importância de incluir o MM nos diagnósticos diferenciais de um quadro clínico em que a sintomatologia principal – de comprometimento ósseo – se permeia entre outras patologias benignas cuja incidência também se eleva com o passar da idade, como a osteoporose e a osteoartrite. A presença das células mielomatosas no organismo humano promovem uma série de desordens metabólicas, funcionais e incapacitantes com perda da homeostasia caso o diagnóstico precoce não for realizado. Dessa forma, é imprescindível que haja o incentivo para que os profissionais de saúde implementem o MM em seu raciocínio fisiopatológico no atendimento a pacientes idosos com quadro de anemia e queixa osteomuscular de modo a garantir a sobrevida com qualidade de vida do indivíduo a partir do momento de seu diagnóstico.
Vertebral Artery Interventions: A Comprehensive Updated Review
Authors: Bob-Manuel Tamunoinemi , Maitas Oscar , Price Justin , Noor Abdullah , Obi Koyenum , Okoh Nelson , Garikapati Kiran , Kim Jeong , Jahan Sanjida , Jenkins James S. 
Published: March 2022

Abstract:
Patients with posterior circulation ischemia due to vertebral artery stenosis account for
20 to 25% of ischemic strokes and have an increased risk of recurrent stroke. In patients treated
with medical therapy alone, the risk of recurrence is particularly increased in the first few weeks
after symptoms occur, with an annual stroke rate of 10 to 15%. Additionally, obstructive disease of
the vertebrobasilar system carries a worse prognosis, with a 30% mortality at 2-years if managed
medically without additional surgical or endovascular intervention.
Percutaneous transluminal angioplasty and stenting of symptomatic vertebral artery stenosis are
promising options widely used in clinical practice with good technical results; however, the improved
clinical outcome has been examined in various clinical trials without a sufficient sample
size to conclusively determine whether stenting is better than medical therapy. Surgical revascularization
is an alternative approach for the treatment of symptomatic vertebral artery stenosis that
carries a 10-20% mortality rate.
Despite the advances in medical therapy and endovascular and surgical options, symptomatic vertebral
artery stenosis continues to impose a high risk of stroke recurrence with associated high
morbidity and mortality. This review aims to provide a focused update on the percutaneous treatment
of vertebral artery stenosis, its appropriate diagnostic approach, and advances in medical
therapies.
Concrescent Teeth: Extraction Implications - A Case Report
Authors: Woźniak Łukasz , Łukaszuk Kamila , Antonowicz Bożena , Szarmach Janusz , Borys Jan 
Published: March 2022

Background:
Concrescent teeth belong to the group of double teeth with disturbed anatomy of shape and structure. The concrescence consists of the aggregation of root cementum of adjacent teeth. This anomaly usually concerns the upper teeth in the lateral part of the jaw. Concrescent teeth can be treated conservatively, endodontically, orthodontically and surgically.

Objective:
The aim of this article is to present the case of the concrescence of upper teeth, a second molar tooth with an impacted third molar, and to draw the attention of clinicians to this rare anomaly that may cause medical and legal problems.

Case presentation:
This article presents the case of a 53-year-old woman who reported to the dentist’s office to extract tooth 17 due to chronic periodontitis and an impacted and abnormally placed tooth 18.

Result:
During the extraction, concrescence of the teeth was noted. The teeth were removed, and the alveoli were surgically treated. The postoperative period was uncomplicated.

Conclusion:
In this paper, the authors draw the attention of clinicians to the fact that the occurrence of concrescent teeth in clinical practice is rare and that it is difficult to diagnose this anomaly on the basis of routine radiological diagnostics based on 2D images. They also point to the necessity of a thorough physical examination and a thorough assessment of teeth before extraction, the extension of imaging diagnostics by conical CT scan in justified cases, and informing the patient about possible complications. In order to avoid serious complications, the extraction of the concrescent teeth should be performed by an experienced specialist in dental or maxillofacial surgery.
Ice Coverage of the Laptev Sea and Air Temperature Variation during
Recent Centuries: Observed Data and Reconstructions Using a Geochemical
Proxy
Authors: Astakhov Anatolii S. , Aksentov Kirill I. , Babich Valeriy V. , Darin Andrey V. , Kalugin Ivan A. , Melgunov Mikhail M. , Hu Limin , Shi Xuefa , Sattarova Valentina V. 
Published: March 2022

Objective:
The aim was to reconstruct the climatic parameters and ice of the Laptev Sea over the last centuries and to identify the causes of their variability.
Background: The ice-free water area of the Arctic Ocean has increased considerably during the summer–autumn period in recent decades, which may be attributed to several climatic and oceanographic factors.

Methods:
The ice-free period duration and mean annual surface air temperature were reconstructed using the transfer function technique to compare hydrometeorological data and the chemical composition of bottom sediments accumulated during the observation period. This approach was based on sub-millimeter scanning of sediments using synchrotron radiation X-ray fluorescence.
The results revealed a specific feature of the variations in the mean annual air temperature over the last 400 years in the Laptev Sea region, whereby higher (up to positive) temperature anomalies, were observed during the Little Ice Age. Some discrepancies in the ice coverage and climate fluctuations were observed during the period from the end of the Little Ice Age to the beginning of the period of accelerated ice-cover degradation in the Arctic (1850–1980). These discrepancies can be caused by the beginning of global warming, which have disturbed the natural cyclicality of atmospheric processes, whereas natural variations in ice coverage were more stable.

Conclusion:
A joint analysis of the reconstructed variations in air temperature and the duration of the ice-free period revealed the influence of atmospheric processes on the ice conditions of the Laptev Sea.
Attitude and Orbit Control of a Space Robot at Additional Launching and
Approaching a Geostationary Satellite
Authors: Somov Yevgeny , Butyrin Sergey , Somov Sergey 
Published: March 2022

Background:
The problems of putting a space robot into a geostationary orbit using a
combined scheme and its approach to a geostationary satellite are considered. The authors’ previous
results on this topic are briefly analyzed.

Objective:
The paper deals with three problems: further development of a rational strategy for the
robot’s add-launching on geostationary orbit and its approaching target using a plasma electric propulsion
unit only; synthesis of the guidance and control laws; a nonlinear dynamical analysis of the
robot’s attitude and orbit control system during these modes.

Methods:
The developed methods and algorithms are based on the local optimizing the fuel consumption
of the plasma electric propulsion unit during each inter-orbital flight of a space robot.

Results:
Simulation results on the guidance and control algorithms are presented that demonstrate
their effectiveness.

Conclusion:
The breakthroughs are as follows: original strategy of add-launching and forecasting
the influence of gravitational disturbances as well as solar pressure forces when synthesizing a robot’s
guidance law for its inter-orbital flights.
Crystal Engineering and its Chemistry: An Architectural Approach for
Cocrystallization
Authors: Dhibar Manami , Chakraborty Santanu , Pani Ayan 
Published: March 2022

Background:
In the field of crystal engineering, cocrystallization is a unique technique
by the help of which physicochemical properties like melting point, solubility, dissolution, etc of
the APIs can be modified without changing the intrinsic structure of APIs.

Objective:
Crystal packing of a solid is modified by crystal engineering techniques which involve
modification of intermolecular interactions that help to regulate breaking and creation of noncovalent
bonds. Non-covalent interactions such as hydrogen bonding, van der Waals forces, π-π
stacking are primarily responsible for the formation of cocrystals. Cocrystals are solid crystalline
materials consisting of two or more molecules present in the similar crystal lattice. It is a method
of formation of mainly hydrogen bonds between the drug molecule and coformer. This technique
can be applied to almost all APIs which have low aqueous solubility. There are several active
pharmaceutical ingredients available, which have therapeutic efficacy against several lifethreatening
diseases. Among those APIs, which have poor aqueous solubility and low oral bioavailability
(BCS class II and class IViv), cannot be efficiently developed into a suitable dosage
form.

Conclusion:
Therefore, this survey gives a united record of the reasoning for plan of cocrystals,
past endeavors, later improvements and future viewpoints for cocrystallization research which
will be incredibly helpful for the formulation scientists of the pharmaceutical industry.
Statistical Methods for Item Reduction in a Representative Lifestyle Questionnaire: Pilot Questionnaire Study
Authors: Staffini Alessio , Fujita Kento , Svensson Akiko Kishi , Chung Ung-Il , Svensson Thomas 
Published: March 2022

Background
Reducing the number of items in a questionnaire while maintaining relevant information is important as it is associated with advantages such as higher respondent engagement and reduced response error. However, in health care, after the original design, an a posteriori check of the included items in a questionnaire is often overlooked or considered to be of minor importance. When conducted, this is often based on a single selected method. We argue that before finalizing any lifestyle questionnaire, a posteriori validation should always be conducted using multiple approaches to ensure the robustness of the results.

Objective
The objectives of this study are to compare the results of two statistical methods for item reduction (variance inflation factor [VIF] and factor analysis [FA]) in a lifestyle questionnaire constructed by combining items from different sources and analyze the different results obtained from the 2 methods and the conclusions that can be made about the original items.

Methods
Data were collected from 79 participants (heterogeneous in age and sex) with a high risk of metabolic syndrome working in a financial company based in Tokyo. The lifestyle questionnaire was constructed by combining items (asked with daily, weekly, and monthly frequency) from multiple validated questionnaires and other selected questions. Item reduction was conducted using VIF and exploratory FA. Adequacy tests were used to check the data distribution and sampling adequacy.

Results
Among the daily and weekly questions, both VIF and FA identified redundancies in sleep-related items. Among the monthly questions, both approaches identified redundancies in stress-related items. However, the number of items suggested for reduction often differed: VIF suggested larger reductions than FA for daily questions but fewer reductions for weekly questions. Adequacy tests always confirmed that the structural detection was adequate for the considered items.

Conclusions
As expected, our analyses showed that VIF and FA produced both similar and different findings, suggesting that questionnaire designers should consider using multiple methods for item reduction. Our findings using both methods indicate that many questions, especially those related to sleep, are redundant, indicating that the considered lifestyle questionnaire can be shortened.
Jesús Tenorio Simón y Héctor Adolfo Quintanar Pérez. Exposición fotográfica Entre la magia y la tradición. México: Casa de Cultura de Coatepec, Veracruz, 2017.
Authors: Quintanar Pérez Héctor Adolfo 
Published: March 2022

A partir del 14 de septiembre de 2017 y hasta el 14 de octubre, se llevó a cabo la exposición fotográfica Entre la Magia y la tradición en la Casa de Cultura de Coatepec, Veracruz. Esta exposición gira en torno a dos grandes festividades populares del municipio cafetalero: la fiesta en honor a san Jerónimo, celebrada el 29 de septiembre, y el Carnaval de Tuzamapan, localidad cañera del municipio.
Los autores, Jesús Tenorio Simón, encargado de documentar la festividad de culto popular católico en honor a San Jerónimo, y Héctor Adolfo Quintanar Pérez, fotógrafo del alegre y longevo carnaval cañero, exponen en más de cuarenta fotografías algunos detalles íntimos de dos fiestas populares que otorgan identidad al municipio Coatepecano.
La exposición está dividida en 3 partes. En la primera se expone el trabajo de Jesús Tenorio y las imágenes de la veneración y verbenas a san Jerónimo, en las que los habitantes locales fabrican largos arcos con postes de pino y flor de cucharilla que pasean por las calles de los límites de la ciudad hasta llegar a la parroquia principal y colocarlos en la fachada. Cabe mencionar que, como característica particular festiva de este acontecimiento, los habitantes lanzan agua desde los techos de las casas a los arqueros, empapando a todo aquel que forme parte del enorme convoy. A estos arcos los acompañan grupos de danza tradicional que engalanan con sus colores la tradición.
La segunda parte es el resultado de la documentación por más de 3 años del carnaval de Tuzamapan, Veracruz, hogar de un personaje carnavalesco al que los lugareños llaman Bonetero, por su elaborado sombrero adornado al que llaman bonete. Dicho personaje es caracterizado por los hombres adultos y viejos de la comunidad, quienes también portan una máscara de madera y un traje que asemeja al de la vieja imagen del hacendado local o al capataz del rancho: con sus botas de fuera, machete de madera y corbata elegante. Esta festividad muestra el pasado de esta comunidad, en el que su clímax económico se debió a la aportación de la hacienda cañera de los Gorozpe a principios del siglo XX. A finales de abril, los habitantes salen a las calles y edificios abandonados de la ex-hacienda y bailan con alegría durante más de cinco días de desfiles.
Por último, se muestra un trabajo en conjunto de ambos autores, resultado de su participación en el colectivo llamado Etnofotografía, donde en diez imágenes muestran escenas de danzas tradicionales y vida cotidiana de las comunidades rurales de la zona montañosa del centro de Veracruz. Cabe mencionar que esta última etapa de la galería ya ha sido expuesta en la ciudad de Dresde, Alemania. Este último trabajo en colectivo lo pueden admirar en su página de Facebook: Etnofotografía.
Fonoteca Nacional. Serie radiofónica Minotauro Sonoro. México: Radio Educación, 2012.
Authors: Vázquez Argüello Jonathan Pedro 
Published: March 2022

La sonoridad de la cultura ha quedado registrada y da cuenta de nuestra manera de hablar y de pensar, es decir de nuestra manera de comunicarnos. En este caso, el registro es posible gracias a la Fonoteca Nacional, entre otras instituciones, que además de tener como objetivos la investigación, el registro y la conservación del patrimonio sonoro, tienen también dentro de sus tareas la difusión mediante el fomento de una cultura de la escucha y el estímulo a la creación y experimentación artística. Es así y gracias a ello como nace Minotauro Sonoro, una serie radiofónica de diez capítulos que van de los diez a los quince minutos de duración, generada por la Fonoteca Nacional en el marco de III Semana del Sonido en México que celebró esta institución en el año 2012. Esta producción, afortunadamente, quedó registrada para deleite de los radioescuchas en la página web de Radio Educación.
Es evidente el esfuerzo que hacen los productores de esta serie radiofónica para llevar a los oídos de sus escuchas la comprensión del universo de los sonidos, mediante la ilustración que logran gracias a los paisajes sonoros que tienen cierto protagonismo. Uno de los mayores aciertos, y que resulta bastante evidente, es que logran tejer la relación del sonido y la literatura y lo convierten en el pretexto perfecto para la elaboración de esta serie. Otros elementos que destacan son la grabación y análisis de fragmentos de diferentes obras de la literatura universal que se abordan, los cuales nos invitan a la lectura gracias a la curiosidad que este tipo de productos pueden despertar en nosotros. Es interesante que una producción sonora permita recrear imágenes de la literatura de una manera tan fiel gracias a la acertada elección y combinación de sonidos.
Entre las obras abordadas por esta serie están El corazón delator, de Edgar Allan Poe, que nos lleva a la habitación que el escritor crea y desde dónde aparece aquel corazón y su palpitar; el poema Ventanas abiertas, de Víctor Hugo, que a través del paisaje sonoro nos permite recrear la brisa del mar gracias al sonido de las olas y las gaviotas, abriendo las ventanas de nuestros oídos; la novela Pedro Páramo, de Juan Rulfo, con los murmullos y lamentos del pueblo de Comala que logramos escuchar en pequeños fragmentos de la obra —este mismo capítulo es atinadamente acompañado
por las reflexiones de Roland Barthes sobre los susurros. Así, Minotauro Sonoro logra conjugar sonidos y literatura y los convierte en una experiencia auditiva sin igual.