bluuebunny/crossref_metadata_2025 huggingface dataset:
İNSANSIZ HAVA ARACI TEKNOLOJİSİ KULLANILARAK AYÇİÇEĞİ (HELİANTHUS ANNUUS) BİTKİSİNİN KLOROFİL İÇERİKLERİNİN TAHMİN EDİLEBİLİRLİĞİNİN ARAŞTIRILMASI
Authors: GÜNAL Elif , KILIÇ Orhan Mete , DÖKÜLEN Şaziye
Published: December 2021

High-resolution images obtained with multispectral cameras mounted on unmanned aerial vehicles (UAVs) offer significant potential for agricultural monitoring activities. Chlorophyll content is one of the important parameters in monitoring the growing periods of sunflower plants. In this study, the potential of UAV technology to monitor spatial and temporal changes of sunflower (Helianthus annuus) chlorophyll content was tested. Chlorophyll and vegetation indices calculated using multispectral images taken from the UAV were compared with field chlorophyll measurements using a Spad meter. Significant (p<0.01) high correlations were obtained between the calculated indices and chlorophyll values. The results revealed that the chlorophyll content of sunflower plants can reliably be modeled at p<0.001 significance level using a multivariate linear regression model. The model obtained could successfully explain 28% 𝑅𝐴𝑑𝑗 2 = 0.28 of the variation in chlorophyll content of sunflowers. The results showed that the models developed between Spad measurement and UAVimages were successful in explaining the variation at a high level of importance. However, although statistically significant, the indices produced in the study could only explained 28% of the variation in chlorophyll content of sunflower plants. Keywords: Sunflower, UAV, Spad meter, Estimation, Vegetation indices
CLARITY AND PRONUNCIATION OF AB-INITIO AIR TRAFFIC CONTROLLER
Authors: Hamzah Haryani
Published: December 2021

The increasing number of aircraft flying around the world has led to the requirement for air traffic controllers to improve their communication skills to face high demand traffic in the future. The paper examines the communication errors in the pilot-controller communication of six ab-initio air traffic controllers during simulation training. More than three hours of conversation were collected and analyzed qualitatively using conversational analysis. The transcribed data yielded a total of 62 instances of communication errors. The data revealed that clarity and pronunciation of ab-initio controllers contributed to problematic communication and reduced the efficiency of the air traffic controllers in communicating. In contrast, pronunciation errors rarely diminished comprehension amongst the controllers and pilots who share a similar first language and are familiar with the use of English in a lingua franca setting. The study also describes other instances of communication errors in pilot-controller communication. The results indicate that ab-initio air traffic controllers need to be proficient in three main areas in pilot controller communication to improve their performance: aviation phraseology, aviation English, and aviation knowledge. The findings suggest that pilots and air traffic controllers should achieve level 4 (operational) in aviation language proficiency test, before proceeding to aviation training that requires them to be proficient in their language skills.
A Nascent Tidal Dwarf Galaxy Forming within the Northern H i Streamer of M82
Authors: Pasha Imad , Lokhorst Deborah , van Dokkum Pieter G. , Chen Seery , Abraham Roberto , Greco Johnny , Danieli Shany , Miller Tim , Lippitt Erin , Polzin Ava , Shen Zili , Keim Michael A. , Liu 刘 Qing 青 , Merritt Allison , Zhang Jielai
Published: December 2021

We identify a ∼600 pc wide region of active star formation located within a tidal streamer of M82 via Hα emission (F
Hα
∼ 6.5 × 10−14 erg s−1 cm−2), using a pathfinder instrument based on the Dragonfly Telephoto Array. The object is kinematically decoupled from the disk of M82 as confirmed via Keck/LRIS spectroscopy and is spatially and kinematically coincident with an overdensity of H i and molecular hydrogen within the “northern H i streamer” induced by the passage of M81 several hundred Myr ago. From H i data, we estimate that ∼5 × 107
M
⊙ of gas is present in the specific overdensity coincident with the Hα source. The object’s derived metallicity (12+

log
(
O

/

H
)
≃
8.6

), position within a gas-rich tidal feature, and morphology (600 pc diameter with multiple star-forming clumps), indicate that it is likely a tidal dwarf galaxy in the earliest stages of formation.
Chemically Fresh Gas Inflows Detected in a Nearby High-mass Star-forming Region
Authors: Chen Xi , Ren Zhi-Yuan , Li Da-Lei , Liu Tie , Wang Ke , Shen Zhi-Qiang , Ellingsen Simon P. , Sobolev Andrej M. , Mei Ying , Li Jing-Jing , Wu Yue-Fang , Kim Kee-Tae
Published: December 2021

We report the detection of a chemically fresh inflow that is feeding high-mass young-stellar-object (HMYSO) growth in the nearby high-mass star-forming region G352.63 made with both the Atacama Large Millimeter/submillimeter Array (ALMA) and the Submillimeter Array (SMA). High-quality images of the dust and molecular lines from both ALMA and SMA have consistently revealed a gravitationally controlled cold (∼10 K) gas inflow of chemically fresh molecules (e.g., CCH and HC3N) toward the central HMYSO and its surrounding dense gas structure, which has a possible torus- or disk-like morphology. The HMYSO is also observed to have an outflow, which is nearly perpendicular to the torus and its parental filament, and thus can be clearly separated from the inflows. These kinematic features provide observational evidence to support the conjecture that the infalling streamers in high-mass star-forming regions could proceed in a similar process to that observed in low-mass counterparts. The chemically fresh infalling streamers could also be involved in the disk or torus configuration, fragmentation, and accretion bursts that occur in both simulations and observations.
Influence of Antimicrobial Nanoparticles on Flexural Strength and Hardness of Polymethylmethacrylate
Authors: Khalil Mennatullah , Enaba Lamis
Published: December 2021

BACKGROUND: Polymethylmethacrylate (PMMA) is commonly used for dental appliances but has several shortcomings that could benefit from improvement with the use of nanoparticles (NPs).
AIM: The purpose of this study was to modify PMMA with three different antimicrobial NPs; Graphene oxide nanosheets (nGO), Titanium dioxide NPs (TiO2 NPs) and curcumin (CUR)-loaded graphene oxide nanosheets alone, and in combination and assess the flexural strength and hardness of the different groups.
MATERIALS AND METHODS: The material used in this study was chemically cured PMMA that was modified with nGO, TiO2 NPs and GOCUR alone and in combination to give 6 groups; Group A: PMMA, Group B: PMMA with nGO, Group C: PMMA with TiO2 NPs, Group D: PMMA with TiO2 and GO NPs, Group E: PMMA with GOCUR, and Group F: PMMA with TiO2 NP, and GOCUR. The Six groups were tested for flexural strength and hardness. Statistical analysis was and data were expressed as means and standard deviation. Data was explored for normality using the Kolmogorov-Smirnov test of normality. The ANOVA test was used to compare between groups, followed by Bonferroni’s post hoc test for pairwise comparison. The significance level was set at p ≤ 0.05.
RESULTS: The highest flexural strength was recorded in Group C (52.26 ± 5.48 MPa) and the lowest value was in Group A (24.94 ± 5.37 MPa). The highest hardness was recorded in Group F (23.29 ± 0.8 HV) and the lowest value was in Group A (15.88 ± 1.02 HV).
CONCLUSION: The modification of PMMA with NPs with proven antimicrobial activity can increase the flexural strength and hardness of the material. GO, TiO2 and, GOCUR NPs were each used alone and in different combinations, and all the groups displayed higher flexural strength and hardness than the unmodified PMMA.
Frequency of Fibromyalgia in a Sample of Iraqi Patients in Mosul with Ischemic Heart Disease
Authors: Younis Ali , Alsaaty Mohammad Harith
Published: December 2021

BACKGROUND: Fibromyalgia is a common chronic condition characterized by widespread musculoskeletal pain together with mood and cognitive dysfunction. Data on the frequency of fibromyalgia in ischemic heart disease (IHD) are scarce. AIM: This study aimed to assess the frequency of fibromyalgia in IHD patients and to evaluate the characteristics of IHD patients with comorbid fibromyalgia. METHODS: The study was conducted in the coronary care unit, Department of Medicine in Ibn Sina Teaching Hospital in Mosul city, between March and November 2020. One hundred patients with IHD and 100 healthy controls were studied. The diagnosis of fibromyalgia was according to the 2011 modification of the 2010 American College of Rheumatology preliminary diagnostic criteria for fibromyalgia. Socio-demographic features and IHD characteristics of patients were recorded. RESULTS: The frequency of fibromyalgia was significantly higher among patients with IHD (29%) as compared to controls (7%). The mean age and proportion of women were significantly higher in IHD patients with fibromyalgia than those without fibromyalgia. It was also more common in patients with the present MI (p = 0.032) and in patients who had previous coronary angiography (p = 0.008). Patients with comorbid fibromyalgia had lower left ventricular ejection fraction (LVEF) (p = 0.0003) and higher scores on beck depression inventory (p = 0.0025). However, on multivariate logistic regression analysis, only two variables remained significant, (1) among IHD patients, fibromyalgia was more frequent in women (odds ratio [OR] = 3.839, p = 0.022) and (2) in patients having lower LVEF (OR = 0.917, p = 0.008). CONCLUSION: There is a high frequency of fibromyalgia in patients with IHD. Those IHD patients with comorbid fibromyalgia are more likely to be older, women, and with poor LVEF.
Diagnostic index for acute eosinophilic pneumonia without bronchoscopy in military smokers
Authors: Park Sunmin , Han Deokjae , Lee Ji Eun , Ryu Duck Hyun , Kim Hyung-Jun
Published: December 2021

Background/Aims: Acute eosinophilic pneumonia (AEP) is common among military smokers; however, bronchoscopy is required for the diagnosis. We aimed to derive and validate a scoring system to diagnose AEP without bronchoscopy.Methods: We conducted a retrospective study including patients diagnosed with AEP or any other pneumonia among military smokers hospitalized in the Armed Forces Capital Hospital from 15 November 2016 through 25 December 2019. The patients were divided into derivation and validation groups according to their admission day. Patient symptoms, laboratory findings, and computed tomography findings were candidate variables. Least absolute shrinkage and selection operator (LASSO) regression was used to calculate the scores for each variable.Results: Among 414 patients, AEP was confirmed in 54 of 279 patients (19.4%) in the derivation group and in 18 of 135 patients (13.3%) in the validation group. Ten variables were selected using LASSO regression: new-onset or a recently increased smoking (≤ 4 weeks) (8 points), interlobular septal thickening (5 points), absence of sputum (3 points), ground glass opacity (3 points), acute onset (≤ 3 days) (2 points), dyspnea (2 points), chest pain (2 points), leukocytosis (2 points), bronchovascular bundle thickening (2 points), and bilateral involvement (2 points). The area under the receiver-operating characteristic curve of the score to diagnose AEP was 0.997 (95% confidence interval, 0.992 to 1.000) in the derivation group and 0.985 (95% confidence interval, 0.965 to 1.000) in the validation group.Conclusions: We introduce a scoring system that can distinguish AEP from other types of pneumonia in military smokers without the need for bronchoscopy.
Aflibercept for Retinopathy of Prematurity: A Systematic Review and Meta-Analysis
Authors: Chen Po-Yu (Jay) , Rossin Elizabeth J. , Vavvas Demetrios G.
Published: December 2021

BACKGROUND AND OBJECTIVE:

To determine the effectiveness of aflibercept in retinopathy of prematurity (ROP).

PATIENTS AND METHODS:

We performed a systematic review and meta-analysis of proportions from the literature in PubMed and Cochrane Library using search terms related to the use of aflibercept in ROP. Studies in non-preterm infants or that did not use aflibercept as the initial treatment were excluded. Risk of bias was assessed by the ROBINS-I (Risk Of Bias in Non-randomized Studies of Interventions) tool.

RESULTS:

We identified six case series. Collectively, 218 eyes were treated with aflibercept for ROP. We found an average 97% (95% confidence interval [CI], 93% to 99%) regression rate with aflibercept and an average 16% (95% CI, 5% to 41%) recurrence rate. With the exception of one outlier study, these numbers are similar to previous reports using anti–vascular endothelial growth factor (VEGF) agents in ROP.

CONCLUSIONS:

Aflibercept holds promise for use in ROP and has been demonstrated to be efficacious in six case series. Randomized, controlled clinical trials appear warranted to compare aflibercept with other anti-VEGF agents.

[
Ophthalmic Surg Lasers Imaging.
2021;52:673–681.]
Automated knowledge-assisted mitosis cells detection framework in breast histopathology images
Authors: Tan Xiao Jian ,   Centre for Multimodal Signal Processing, Department of Electrical and Electronic Engineering, Faculty of Engineering and Technology, Tunku Abdul Rahman University College (TARUC), Jalan Genting Kelang, Setapak 53300, Kuala Lumpur, Malaysia, Mustafa Nazahah , Mashor Mohd Yusoff , Rahman Khairul Shakir Ab ,   Biomedical Electronic Engineering Programme, Faculty of Electronic Engineering Technology, Universiti Malaysia Perlis (UniMAP) 02600 Arau, Perlis, Malaysia,   Department of Pathology, Hospital Tuanku Fauziah 01000 Jalan Tun Abdul Razak Kangar Perlis, Malaysia
Published: December 2021

Based on the Nottingham Histopathology Grading (NHG) system, mitosis cells detection is one of the important criteria to determine the grade of breast carcinoma. Mitosis cells detection is a challenging task due to the heterogeneous microenvironment of breast histopathology images. Recognition of complex and inconsistent objects in the medical images could be achieved by incorporating domain knowledge in the field of interest. In this study, the strategies of the histopathologist and domain knowledge approach were used to guide the development of the image processing framework for automated mitosis cells detection in breast histopathology images. The detection framework starts with color normalization and hyperchromatic nucleus segmentation. Then, a knowledge-assisted false positive reduction method is proposed to eliminate the false positive (i.e., non-mitosis cells). This stage aims to minimize the percentage of false positive and thus increase the F1-score. Next, features extraction was performed. The mitosis candidates were classified using a Support Vector Machine (SVM) classifier. For evaluation purposes, the knowledge-assisted detection framework was tested using two datasets: a custom dataset and a publicly available dataset (i.e., MITOS dataset). The proposed knowledge-assisted false positive reduction method was found promising by eliminating at least 87.1% of false positive in both the dataset producing promising results in the F1-score. Experimental results demonstrate that the knowledge-assisted detection framework can achieve promising results in F1-score (custom dataset: 89.1%; MITOS dataset: 88.9%) and outperforms the recent works.
Análisis de elementos traza en braquiópodos del Jurásico Inferior del Paleomargen Sud-Ibérico (SE de España). Correlación con las señales bióticas e implicaciones ambientales en torno al Evento de Extinción Masiva del Toarciense inferior
Authors: Baeza-Carratalá José Francisco , Reolid Matías , Giannetti Alice , Benavente David , Cuevas-González Jaime
Published: December 2021

En el Jurásico Inferior se registran diversos eventos críticos que influyeron significativamente en los ecosistemas marinos del Tethys occidental. Entre las comunidades bentónicas, en el Paleomargen Sudibérico, los braquiópodos se vieron particularmente afectados por dichos eventos. El episodio tectono-sedimentario distensivo asociado a la apertura del proto-Atlántico conllevó el colapso de las amplias plataformas someras imperantes en el Tethys hasta el Sinemuriense superior-Pliensbaquiense basal, con la consiguiente reorganización de los ecoespacios faunísticos. Posteriormente, el evento de extinción registrado en el Toarciense inferior, trajo consigo importantes alteraciones en el ciclo del carbono así como el desarrollo de condiciones anóxicas que afectaron principalmente a las comunidades bentónicas. En el dominio Subbético, la dinámica poblacional de los braquiópodos coincidió con estos importantes eventos de perturbación ambiental. Se ha analizado la impronta geoquímica registrada en conchas de braquiópodos del Subbético oriental, revelando una clara sincronía entre las oscilaciones del contenido en elementos traza, las tendencias globales en el ciclo del C y del O y la diversidad de la braquiofauna en torno a dichos eventos críticos, lo que permite validar modelos globales y regionales relacionados tanto con el evento de rifting incipiente de las plataformas someras en el Sinemuriense-Pliensbachiense, como con la crisis biótica global en torno al Toarciense inferior. En la renovación faunística verificada para el tránsito Sinemuriense-Pliensbachiense y para el evento de extinción del Toarciense, los metales traza sensibles a las condiciones redox, la concentración de REE y el contenido en Fe en las conchas de braquiópodos muestran excursiones positivas. Esta tendencia, junto a los patrones de diversidad de los braquiópodos, los bajos valores de TOC y las evidencias sedimentarias, sugieren que, en esta región, la anoxia debió representar un factor secundario como causa de estrés ambiental para la fauna bentónica. En cambio, se postula que el progresivo aumento de la temperatura jugó un papel determinante en las cuencas marginales del Tethys occidental, como se demuestra al correlacionar los principales eventos de renovación y sustitución faunística con las paleotemperaturas de las plataformas peri-ibéricas. Los cambios en la paleoproductividad, los aportes continentales y posibles contribuciones hidrotermales se relacionan asimismo con las oscilaciones de determinados elementos traza y se interpretan, por tanto, como factores coadyuvantes desencadenantes de estos bioeventos del Jurásico Inferior en el Tethys occidental.
À la recherche du quaestor Ostiensis
Authors: Berrendonner Clara
Published: December 2021

La catégorie mommsénienne des « quaestores classici » n’étant selon toute vraisemblance pas valide, le quaestor Ostiensis n’a pas à y être rattaché. L’article dresse la prosopographie des questeurs d’Ostie et tente de cerner leurs attributions. La prouincia Ostiensis était probablement un poste non permanent de la questure urbaine, chargé du ravitaillement de Rome pendant les années de crise frumentaire.
Ostie, observatoire essentiel de la seruitus publica
Authors: Sudi-Guiral Françoise
Published: December 2021

Grâce à son exceptionnelle documentation épigraphique, Ostie offre mieux qu’aucune autre cité du monde romain la possibilité rare de connaître un groupe relativement large d’esclaves et d’affranchis publics. En permettant d’étudier ces personnels tant au plan individuel que dans leur dimension collective, le corpus d’Ostie donne l’occasion d’apprécier leur degré d’intégration dans la vie civique et leur capacité à se promouvoir.
Il molo est-ovest a Portus
Authors: Meléndez Javier Bermejo , Carrasco Juan M. Campos , Meléndez Alberto Bermejo , D’Ammassa Cristian , Sutilo Lucía Fernández , Vázquez Francisco Marfil , Sebastiani Renato
Published: December 2021

Nel quadro del protocollo d’intesa siglato tra il Parco Archeologico di Ostia Antica e l’Università di Huelva, è stato avviato un progetto di ricerca su uno dei moli interni est-ovest di Portus, quello detto «Molo della Lanterna». Si espongono i risultati della prima campagna di studi, in particolare, l’analisi della struttura del molo in un’area della testata, che permettono di avere una conoscenza preliminare di un aspetto molto significativo del principale sistema portuale dell’impero. I dati finora ottenuti riguardano principalmente il sistema di costruzione della testata del molo, le ultime fasi di utilizzo delle strutture ad essa annesse, riconducibili ad un periodo successivo al V sec. d. C., nonché informazioni relative al paleoambiente circostante.
Introduction
Authors: Lamoine Laurent
Published: December 2021

Dès 1965 et jusqu’à son décès en 2017, M. Cébeillac-Gervasoni a œuvré pour la connaissance du corpus épigraphique d’Ostie et il est apparu intéressant d’analyser le rôle des études ostiennes dans l’élaboration des programmes de recherche qu’elle dirigea des années 1980 à sa retraite du CNRS. Les années 1970-1980, dans le cadre de son enquête doctorale sur les magistrats des cités du Latium et de la Campanie et de ses nombreuses activités et responsabilités en Italie, voient se développer avec Ostie comme un laboratoire des questionnements et des premiers résultats sur le monde municipal italien antique. Avec la naissance du programme EMIRE dans les années 1990, M. Cébeillac-Gervasoni profite de cette expérience pour infléchir les recherches en direction de l’histoire socio-économique puis vers l’étude des rapports institutionnels entre les cités locales entre elles et avec Rome. C’est d’ailleurs à partir de cette base institutionnelle qu’EMIRE se métamorphose en « Quotidien municipal » en 2002. Indépendamment de ce programme, M. Cébeillac-Gervasoni est sollicitée pour rédiger avec F. Zevi et M.L. Caldelli un manuel d’épigraphie latine fondé sur le corpus ostien en 2006. Lors de sa dernière décennie 2010-2017, elle revient à ses amours de jeunesse : avec F. Zevi, elle initie les séminaires ostiens de 2012, 2013 et 2015, dont profite la réalisation d’un corpus de plus de 2 000 inscriptions funéraires inédites d’Ostie, publié en 2018.
Sortir de l’histoire
Authors: Gally Michèle
Published: December 2021

Il s’agit d’interroger les liens que la littérature narrative des XXe et XXIe siècles tisse avec le « Moyen Âge » ou, plus exactement, avec l’« idée de Moyen Âge ». Nous proposons, en effet, de voir, dans quelques récits qui situent leurs intrigues à différents moments de ces siècles dits médiévaux (de Druon à Graciano en passant par Michon ou Minard…), moins la reconduction et la recréation d’une époque historique précise que le désir de plonger les lecteurs dans un passé qui, tel que réécrit, n’exista jamais. Si ce mouvement de dés-historicité est particulièrement évident dans des genres grand public comme la Fantasy, il se retrouve aussi dans des textes moins normés, à l’écriture singulière. Ces œuvres mettent ainsi en crise le modèle fondateur du roman historique par ce que j’appelle une sortie de l’histoire.
Norma algorítmica como técnica de governo em Plataformas Digitais: um estudo da Escola de Criadores de Conteúdo do YouTube
Authors: Araújo Willian Fernandes
Published: December 2021

O artigo tem como objetivo discutir as manifestações em plataformas digitais da chamada norma algorítmica, conceito que destaca a produção de dispositivos materiais e discursivos que buscam orientar/normalizar conteúdos e comportamentos dentro desses sistemas, traduzindo visibilidade como um valor que só pode ser alcançado pelo seguimento dessas normas (Araújo, 2017; 2018a). Com este propósito, são analisados textos do curso Seja Descoberto da Escola de Criadores de Conteúdo do YouTube. Como resultado da análise, é observada a emergência do algoritmo como um ser singular e unificado, que age apenas de forma reativa, como um intermediário das escolhas do público.
Palavras-chave: Algoritmos. Norma Algorítmica. Plataformas digitais. Governamentalidade. YouTube.
Humanistic Mentoring in Graduate Education
Authors: Paredes Sandra Gudino , Pena Felipe J. Jasso
Published: December 2021

In a global health pandemic context, a group 16 of education Master's students met voluntarily with their tutors in a virtual research support seminar, during the Saturday mornings of the first and second semester of 2020. This study aimed to know to what extent did mentoring and human tutoring characteristics emerge in a virtual research seminar experience. Through a qualitative research approach that included the analysis of the conversations and dialogues of the recorded sessions, insights showed that some of these characteristics emerged naturally along with the sessions, but as time passed, emotional and personal aspects were appearing more often than some others, showing that students felt more comfortable talking about themselves and supporting their classmates, as well as expressing their academic doubts and project thoughts freely because of humanistic tutoring approach. Most of them achieved the goal of finishing their project chapters on time. The humanistic and professional characteristics of teachers emerged as the main factors to develop this humanistic tutoring approach.
Ações implementadas no preparo e administração de heparina endovenosa: relato de evento adverso/Actions implemented in the preparation and endovenous administration of heparin: adverse event report
Authors: Cristina Echer Isabel , Guarilha Boni Fernanda , Vacario de Quadros Deise , Osmarin Viviane Maria , Terezinha Rotta Eloni , Wegner Wiliam
Published: December 2021

Objetivo: relatar evento adverso no preparo e administração de heparina endovenosa e ações implementadas pela equipe de saúde. Métodos: trata-se de relato de experiência sobre as ações implementadas após análise de evento adverso no preparo e administração de heparina em paciente internado em um Hospital Universitário do Sul do Brasil. Os dados foram coletados nos registros do prontuário do paciente, atas de reuniões das equipes envolvidase do plano de ação das medidas instituídas após evento ocorrido em novembro de 2017. A análise dos resultados foi realizada de forma descritiva e o projeto aprovado por Comitê de Ética em Pesquisa. Resultados: as ações realizadas incluíram a revisão de rotinas e protocolos relacionados ao cálculo de dose, preparo e administração daheparina endovenosa. Houve ainclusão como medicamento de alta vigilância e realização da dupla checagem. Também foram divulgadas orientações e alertas em nível institucional para todos os membros da equipe de enfermagem. Conclusão: a experiência contribuiu para evidenciar a necessidade de monitorar incidentes e seus impactos, encontrar estratégias para reduzi-los por meio de revisões nos processos e implementação de ações naprática assistencial visando maior segurançano preparo e administração de heparina endovenosa.
Uso da máscara N95 por trabalhadores de enfermagem expostos à fumaça cirúrgica/ Use of the N95 mask by nursing workers exposed to surgical smoke
Authors: Manoel Netto Caroline , Ferreira Lima Leachi Helenize , Crystal Stanganelli Nathanye , Franco da Rocha Aline , Perfeito Ribeiro Renata
Published: December 2021

Objetivo: verificar os desconfortos apresentados por trabalhadores que necessitam utilizar a máscara N95 durante as suas atividades laborais. Método: pesquisa descritiva com delineamento transversal, desenvolvida no Centro Cirúrgico de um hospital de ensino localizado na região Sul do Brasil, no período de junho a agosto de 2019, durante o turno de trabalho diurno. Realizou-se o estudo com os profissionais de enfermagem que estavam expostos à fumaça cirúrgica no período de trabalho. Para a coleta dos dados, utilizou-se um instrumento com detalhamento sociodemográfico e ocupacional dos participantes e entregou-se uma máscara N95 aos profissionais para ser utilizada durante a cirurgia, a fim de verificar o tempo de uso da N95 e os motivos pelos quais os trabalhadores retiraram a máscara durante o ato anestésico-cirúrgico. Resultados: o maior número de trabalhadores (27,7%) utilizou a máscara até 3 horas durante o ato anestésico-cirúrgico, sendo que esse tempo foi relacionado com algumas queixas (p=0,037), tais como incômoda (27,8%), apertada (44,4%) eenjoo (5,6%). A retirada da máscara N95 (p=0,022) por esses profissionais antes do término da cirurgia foi relacionada a essas queixas. Conclusão: os trabalhadores apresentam queixas, como desconforto, máscara apertada e enjoo, sendo que estas estão relacionadas com o tempo de uso, o que precisa ser avaliado por gestores para a utilização da N95.
Caracterização das práticas e conhecimentos sobre aleitamento materno em um município do Sul de Minas Gerais, Brasil/ Characterization of practices and knowledge about breastfeeding in a cityin the South of Minas Gerais, Brazil
Authors: Guedes da Silva Ana Carolina , Batista Novais Maicon , Simões Junqueira Marília Gabriela , Souza da Silva Marcela , Pinto Costa Isabelle Cristinne , Ribeiro Patrícia Mônica
Published: December 2021

Objetivo: caracterizar as práticas e o conhecimento sobre o aleitamento materno exclusivo em nutrizes residentes em um município do Sul de Minas Gerais, Brasil. Método: trata-se de um estudo transversal, descritivo e com abordagem quantitativa. Resultados: a amostra foi composta por 77 mães de lactentes com mais de seis meses. Verificou-se que 100% respondeu ter conhecimento de que a amamentação exclusiva deve ocorrer até o sexto mês de vida. Quanto à compreensão de que a amamentação diminui a incidência de doenças durante a infância, 73 (94,8%) responderam que sim e quatro (5,2%) não. Em relação a saber que o leite materno melhora o desenvolvimento neuropsicomotor e crescimento, 71 (94,8%) responderam sim e seis (7,8%) não. Mantiveram o aleitamento materno até o sexto mês 50 (88%) e 27 (12%) desmamaram precocemente. Dentre os motivos para o desmame precoce referiram a recusa do lactente; leite fraco ou em pouca quantidade e dificuldade de sucção do lactente. Quanto à complementação houve introdução de água; leites industrializados; chá; suco de frutas; frutas amassadas ou em pedaços; papinhas doces ou salgadas; outros tipos de leite; a mesma refeição da família; café e refrigerante. Conclusão: a maioria das participantes conhece os benefícios do aleitamento e o mantêm de forma exlusiva, porém, para outras, mesmo tendo essa compreensão, a complementação ocorre e o desmame precoce acontece.
Fluxos de atendimento em um centro obstétrico frente à pandemia da covid-19: relato de experiência/Flows of care in an obstetric center in the face of the covid-19 pandemic: experience report
Authors: Corrêa Patuzzi Gregório , Vieira Schuster Raquel , Konzen Ritter Simone , Ludwig Neutzling Agnes , Borba da Luz Camila , De Castilhos Teixeira Canassa Carolina
Published: December 2021

Objetivo: relatar o desenvolvimento e implementação de fluxos para atendimento de gestantes com suspeita ou confirmação de COVID-19 no Centro Obstétrico de um hospital público. Método: estudo descritivo, do tipo relato de experiência, realizado em um hospital público de Porto Alegre/RS, referência para atendimento de gestantes com COVID-19. Resultados: descreveram-se fluxos para atendimento à gestante com suspeita ou confirmação de COVID-19 nas seguintes situações: acolhimento e classificação de risco em obstetrícia; indução e/ou trabalho de parto ativo; e cirurgia cesariana. A aplicação dos fluxos descritos possibilitou a organização assistencial e contribuiu para a investigação e diagnóstico precoce de COVID-19, bem como para o controle da transmissão dessa doença em ambiente hospitalar. Considerações finais: a elaboração de fluxos para atendimento de gestantes, no contexto da pandemia de COVID-19, é demanda primordial para os serviços de saúde, a fim de organizar e qualificar a assistência, promovendo práticas baseadas em evidências científicas e evitando intervenções e restrições desnecessárias.
No limiar da esperança: a percepção da família no transoperatório de cirurgia cardíaca/On the threshold of hope: the family’s perception in the transoperatory of heart surgery
Authors: Manfio Somavilla Itagira , Girardon-Perlini Nara Marilene Oliveira , Dalmolin Angélica , Oliveski Cínthia Cristina , De Carli Coppetti Larissa , Boeck dos Santos Evelyn , Estéla Gonçalves Senter Bárbara
Published: December 2021

Objetivo: Conhecer a percepção da família frente ao período transoperatório de cirurgia cardíaca. Método: Pesquisa qualitativa, descritiva e relativa à família, realizada com dez pessoas quecompunham nove famílias de pacientes que foram submetidos à cirurgia cardíaca. A coleta de dados ocorreu por meio de entrevista não estruturada em um hospital público no interior do Rio Grande do Sul. Os dados foram submetidos à análise de conteúdo com base nas proposições de Bauer. Os preceitos éticos foram respeitados. Resultados: Os dados foram organizados na categoria: “No limiar da esperança: aguardando na sala de espera”, que expressa a linha tênue das vivências das famílias no transoperatório de cirurgia cardíaca, compreendendo suas percepções e sentimentos acerca do período de espera pelo desfecho cirúrgico de seu familiar. Conclusão: O período transoperatório de cirurgia cardíaca é percebido como um momento único, gerador de instabilidade emocional e ambivalência de sentimentos, sendo permeado de ansiedade e interligado ao constante medo da perda, concomitante à esperança de uma nova vida proporcionada pela cirurgia.
Reinvestigation of Classic T Cell Subsets and Identification of Novel Cell Subpopulations by Single-Cell RNA Sequencing
Authors: Wang Xuefei , Shen Xiangru , Chen Shan , Liu Hongyi , Hong Ni , Zhong Hanbing , Chen Xi , Jin Wenfei
Published: December 2021

Classic T cell subsets are defined by a small set of cell surface markers, while single-cell RNA sequencing (scRNA-seq) clusters cells using genome-wide gene expression profiles. The relationship between scRNA-seq clustered populations (scCPops) and cell surface marker–defined classic T cell subsets remains unclear. In this article, we integrated six bead-enriched T cell subsets with 62,235 single-cell transcriptomes from human PBMCs and clustered them into nine scCPops. Bead-enriched CD4+/CD45RA+/CD25− naive T and CD8+/CD45RA+ naive T cells were mainly clustered into their scCPop counterparts, while cells from the other T cell subsets were assigned to multiple scCPops, including mucosal-associated invariant T cells and NKT cells. The multiple T cell subsets forming one scCPop exhibit similar expression patterns, but not vice versa, indicating scCPop is a more homogeneous cell population with similar cell states. Interestingly, we discovered and named IFN signaling–associated gene (ISAG) high T (ISAGhi T) cells, a T cell subpopulation that highly expressed ISAGs. We further enriched ISAGhi T cells from human PBMCs by FACS of BST2 for scRNA-seq analyses. The ISAGhi T cell cluster disappeared on t-distributed stochastic neighbor embedding plot after removing ISAGs, whereas the ISAGhi T cell cluster showed up by analysis of ISAGs alone, indicating ISAGs are the major contributor of the ISAGhi T cell cluster. BST2+ and BST2− T cells showing different efficiencies of T cell activation indicate that a high level of ISAGs may contribute to quick immune responses.
Serum 8-Hydroxydeoxyguanosine Is a Potential Indicator for the Severity and Prognosis in Patients with Community-Acquired Pneumonia: A Prospective Cohort Study
Authors: Cao Lin-Feng , Cheng Jia-Yi , Xu Zheng , Feng Chun-Mei , Zhao Hui , Wang Xin-Ming , Fu Lin
Published: December 2021

Previous studies have demonstrated that 8-hydroxydeoxyguanosine (8-OHdG) exerted key roles in various pulmonary diseases, but the evidence for its role in community-acquired pneumonia (CAP) was lacking. The goal of this research was to evaluate the correlations of serum 8-OHdG with the severity and prognosis among patients with CAP through a prospective cohort study. A total of 239 patients with CAP and 239 healthy participants were enrolled. Fasting blood samples were collected. 8-OHdG and inflammatory cytokines were measured by ELISA. On admission, serum 8-OHdG was significantly increased in patients with CAP compared with control subjects. Besides, serum 8-OHdG was incrementally increased in line with CAP severity scores. Pearson correlative analysis found that serum 8-OHdG was correlated with clinical characteristics and inflammatory cytokines in patients with CAP. Linear and logistic regression analysis showed that serum 8-OHdG was positively associated with CAP severity scores. Furthermore, the prognostic outcomes were tracked. Higher serum 8-OHdG on admission increased the risks for intensive care unit admission, mechanical ventilation, vasoactive agent usage, death, and longer hospital stay among patients with CAP. Serum 8-OHdG combination with confusion, respiratory rate, blood pressure, and age ≥65 y or pneumonia severity index had stronger predictive powers for death than single 8-OHdG, CAP severity scores, or several inflammatory cytokines in patients with CAP. These results indicated that serum 8-OHdG is positively associated with the severity and poor prognosis in patients with CAP, demonstrating that 8-OHdG may be involved in the pathophysiology process of CAP.
The effects of team-based learning on nursing students’ learning performance with a focus on high-risk pregnancy: a quasi-experimental study
Authors: Lee Sun Hee , Park Hyun Jung
Published: December 2021

Purpose: The purpose of this study was to examine the effects of team-based learning (TBL) on nursing students’ communication ability, problem-solving ability, self-directed learning, and nursing knowledge related to high-risk pregnancy nursing. Methods: This quasi-experimental study used a nonequivalent control group pretest-posttest design. The participants were 91 nursing students allocated to an experimental group (n=45) and a control group (n=46). The experimental group received TBL lectures three times over the course of 3 weeks (100 minutes weekly) and the control group received instructor-centered lectures three times over the course of 3 weeks (100 minutes weekly). Data were collected by questionnaires from September 10 to November 8, 2019. Data were analyzed using the chi-square test, paired t-test, and independent t-test. Results: After the intervention, the mean scores of problem-solving ability (t=–2.59, p=.011), self-directed learning (t=4.30, p<.001), and nursing knowledge (t=3.18, p=.002) were significantly higher in the experimental group than in the control group. No significant difference in communication ability was found between the experimental and control group (t=1.38, p=.171) Conclusion: The TBL program was effective for improving nursing students’ problem-solving ability, self-directed learning, and nursing knowledge. Thus, TBL can be considered an effective teaching and learning method that can improve the learning outcomes of high-risk pregnancy nursing in women’s health nursing classes. The findings of this study suggest that TBL will be helpful for future nursing students to develop the nursing expertise necessary for providing nursing care to high-risk pregnant women.
Primary gastrointestinal anaplastic large cell lymphoma
Authors: Mishra Pritinanda , Patra Susama , Srinivasan Anand , Padhi Somanath , Sable Mukund Namdev , Samal Subash Chandra , Mohapatra Sonali
Published: December 2021

Anaplastic large cell lymphoma (ALCL) is a distinct T-cell non-Hodgkin lymphoma involving both nodal and extra-nodal sites with a specific anaplastic lymphoma kinase 1 (ALK-1) gene rearrangement. The commonly involved extranodal sites include skin, bone, soft tissue, lungs, and liver. ALCL primarily involving gastrointestinal (GI) tract is rare. In this manuscript, we describe a case of primary esophageal ALK1 positive-ALCL (null phenotype) in a young female, who presented with fleshy mucosal lesion in the lower third of the esophagus and present a systematic review of 35 cases of GI-ALCL reported in the English literature over the past 28 years (1990–2018) with regard to the clinicopathological characteristics, therapy, and outcome.
WILDLIFE ROADKILL IN THE SURROUNDINGS OF EMAS NATIONAL PARK, CERRADO BIOME, BRAZIL
Authors:   Carvalho-Roel, Carvalho-Roel Carine Firmino , Alves Giselle Bastos , Jácomo Anah Tereza de Almeida ,   Instituto Onça-Pintada, Moreira Renato Alves ,   Organização Não-Governamental Oréades, Tôrres Natália Mundim , Silveira Leandro
Published: December 2021

Roadkill is a serious threat to biodiversity conservation especially when roads are near natural habitats of wildlife, such as the Emas National Park (ENP), a Protected Area in Mid-west Brazil in the Cerrado Biome. We aimed to identify the species killed on a stretch of the GO-341 highway that is tangent to the ENP. We investigated if roadkills were influenced by seasonality, sugar cane harvest and by the activity pattern of the animals (diurnal/nocturnal). We also analyzed if roadkills were aggregated in space, where the roadkill hotspots were located, if they were influenced by seasonality, and if they were different for the most abundant species. The highway was monitored with a vehicle, in the morning, at a speed of 40 to 60 km/hour, daily, with two observers. We covered a total of 4,230 km during the 90-day monitoring period, which included dry and rainy seasons. We recorded 132 wild animals’ roadkills: 67 birds (51 %), 60 mammals (45 %) and 5 reptiles (4 %). We identified 22 vertebrate species, including 13 birds, six mammals and three reptiles. The roadkill rate was 0.03 animals/km/day. During the dry season, the blue-and-yellow macaw (Ara ararauna) had higher roadkill rates. The crab-eating fox (Cerdocyon thous) was the only species with higher roadkill rates during the sugarcane harvest. Most birds killed had diurnal habits, for mammals, no difference was observed concerning the activity pattern. Bird roadkills were aggregated considering the entire data set, as well as for the dry and rainy seasons separately. Mammal roadkills were aggregated only when considering the entire data set. The location of bird roadkill hotspots differed between seasons. The roadkill hotspot location of birds and mammals highly overlapped those observed for the two most abundant species of these taxa, respectively, Ara ararauna and Euphractus sexcinctus.
NOTES ON AN ARTIFICIAL ROOST OF Myotis albescens (CHIROPTERA, VESPERTILIONIDAE) IN SOUTHEASTERN BRAZIL
Authors:   Universidade de São Paulo, Garbino Guilherme Siniciato Terra , Pereira Vinicius José Alves ,   Universidade Federal de Viçosa, Pagotto Thais ,   Instituto de Pesquisas Ecológicas, Prist Paula Ribeiro ,   Concessionária Auto Raposo Tavares, Abra Fernanda Delborgo ,   ViaFAUNA Estudos Ambientais,   Universidade de São Paulo,   Smithsonian Conservation Biology Institute
Published: December 2021

Myotis albescens has a wide distribution, occurring from southern Mexico to central Argentina and Uruguay, where it is usually caught near streams or flooded areas. M. albescens roosts during the day in cavities such as hollow logs, rock cavities, and buildings. Here, we describe a group of M. albescens roosting in a highway underpass in an Atlantic Forest area in Rancharia, southeastern Brazil. The group was found inside a culvert with a shallow stream passing through it. The animals left the roost and were mist-netted in the first hours of the night. The M. albescens group was composed of 18 individuals, eleven males and seven females. In October, all males had descended testes and two females were pregnant, as confirmed by abdominal palpation. Morphological characters of the specimens fell in the known variation for the species. Our data show that highway underpasses can be important day roosts for bats, especially if riparian areas are preserved
BIRDS OF PARQUE ESTADUAL DO BIRIBIRI, CENTRAL ESPINHAÇO RANGE, BRAZIL
Authors:   Universidade Federal dos Vales do Jequitinhonha e Mucuri, Lima Estevão Luís Pereira , Carvalho Rone Fernando de , Lessa Leonardo Guimarães
Published: December 2021

The Central Espinhaço Range forms a large biogeographical barrier that contains areas of ecological transition between two important conservation hotspots in Brazil: the Atlantic Forest and the Cerrado. This research aims to present the first consolidated list of bird species from Parque Estadual do Biribiri (PEBI) located in the Central Espinhaço Range at Minas Gerais state, southeastern Brazil. We recorded 172 bird species between August/November 2018 and January/April 2019, of which 15 are associated with the surrounding biomes (Caatinga, Cerrado and Atlantic Forest) and three species restricted to the southeastern Brazilian mountain tops. Among those species, four are considered globally Near Threatened and 41 species are listed under wildlife trafficking species, indicating the importance of conserving this area. Therefore, our results highlight the importance of PEBI and stress the importance of such transitional areas for maintaining diversity of birds in the Espinhaço Range.
Aspek-aspek dalam Menyusun Bahan Ajar Komsel: Suatu Usulan bagi Gereja Penyebaran Injil Majalengka
Authors: Kusumawati Debi Debora , Prihanto Joko
Published: December 2021

Cell group is one of the most basic forms of service that must be developed by the church in helping the congregation it serves so that it becomes more mature and grows in the knowledge of God. In addition to praise, prayer, and worship, teaching is an important thing in the conduct of cell groups. In connection with teaching, the church must prepare teaching materials that are relevant to the needs of cell grup members. The goal is to make cell grup members more interested in participating in cell groups, and to become more mature in God and able to face the challenges of life that they are facing.The research method used is library research. This method collects data and information in the form of documents, data archives and other literature information. This paper is expected to help churches in developing cell group's services so that the church has a strong concept in compiling teaching materials that are relevant to cell group's members. This paper will discuss the nature of cell group, the importance of teaching materials relevant to cell group members, the biblical basis of teaching materials relevant to cell group members, and ends with concepts in compiling teaching materials in cell group.
Evaluating the Effects of Milling Speed and Screen Size on Power Consumed During Milling Operation
Authors: ADENIGBA Ademola Adebukola , OLUWAGBAYIDE Samuel Dare
Published: December 2021

This study was conducted to evaluate the effect of rotor speed and screen size on power consumed during milling operation. The milling system was tested using three fish feed ingredients; bone meal, groundnut cake and maize. The moisture contents of the ingredients bought from the market are 13.1%, 14.7% and 17.5% dry basis, respectively. The milling machine was evaluated with the 3 kg of each feed ingredient and was replicated three times for each of the experimental parameters. The machine parameters varied during the experiment includes four screen sizes (1.5 mm, 2.0 mm, 2.5 mm and 3.0 mm) and five rotor speeds (1500 rpm, 1800 rpm, 2100 rpm, 2400 rpm and 2700 rpm). Regression analysis was carried out on the data collated. The analysis was used to develop a model which is capable of predicting the electrical energy (kJ) consumed. There was no significant effect of screen size on the average power consumed during milling since there is no linear relationship between power consumed and screen size. However, there is a significant effect of speed on average power consumed, the power consumed increases as speed decreases therefore making milling operation at higher speed to be cost effective since it doesn’t require much power to achieve the required output. The P-Value depicts that screen size has no significant effect on the electrical energy consumed during the milling operation while speed has a significant effect on the electrical energy used at 95% confidence level.