bluuebunny/crossref_metadata_2025 huggingface dataset:
Moon in the Sky…
Authors:   Main Astronomical Observatory of NASU, Kislyuk V.S.
Published: May 2021

The book “Moon in the Sky…” consists of two chapters: “The Wonderful World of Selena” and “Return to the Moon.” The first of them tells about the current state of the study of the Moon: its origin, features of rotational motion, nature and internal structure. The second section discusses the problems of further study and development of the Earth's natural satellite with the help of spacecraft and the creation of populated scientific and research-production bases on its surface. The appendices provide basic information about the Moon, a glossary of lunar terms, a chronology of lunar explorations using spacecraft, a map of the visible side of the Moon for observations with binoculars or a school telescope. The book “Moon in the Sky…” is intended for a wide range of readers.
Mathematical simulation of hard excitation of cavitation self-oscillations in a liquid-propellant rocket engine feed system
Authors:   Institute of Technical Mechanics of the National Academy of Sciences of Ukraine and the State Space Agency of Ukraine, Dolgopolov S.I.
Published: May 2021

Hard self-oscillation excitation differs from soft excitation in that self-oscillations are set up only if the initial departure of an oscillating system from equilibrium is strong enough. Experimental studies of cavitation oscillations in hydraulic systems with cavitating pumps of liquid-propellant rocket engines ((LPREs) include works that describe hard excitation of cavitation oscillations. By mow, hard excitation regimes have not been explained theoretically, to let alone their mathematical simulation. This paper presents a mathematical model of hard excitation of cavitation oscillations in a LPRE feed system, which comprises a mathematical model of cavitation self-oscillations in a LPRE feed system that accounts for pump choking and an external disturbance model. A mechanism of hard excitation of cavitation oscillations in a LPRE feed system is proposed. It is well known that hard excitation of cavitation self-oscillations may take place in cases where the pump feed system is near the boundary of the cavitation self-oscillation region. In this case, the self-oscillation amplitudes are small, and they are limited only by one nonlinearity (cavity volume vs. pump inlet pressure and flow relationship). Under excitation of sufficient intensity, the pump inlet pressure and flow find themselves in the choking characteristic; this may be responsible for choking and developed cavitation self-oscillations, which remain of interrupted type and do not go into the initial small-amplitude oscillations even after excitation removal. A mathematical simulation of hard excitation of cavitation self-oscillations was conducted to determine the parameters of cavitation self-oscillations in a bench feed system of a test pump. The simulation results show that without an external disturbance the pump system exhibits small-amplitude self-oscillations. On an external disturbance, developed (interrupted) cavitation oscillations are set up in the system, which is in agreement with experimental data. The proposed mathematical model of hard excitation of cavitation self-oscillations in a LPRE feed system allows one to simulate a case observed in an experiment in which it was possible to eliminate cavitation self-oscillations by an external disturbance.
Species composition of small mammals in key biotopes near Kolomak (Kharkiv Oblast)
Authors:   V. N. Karazin National University of Kharkiv (Kharkiv, Ukraine), Markovska Oksana
Published: May 2021

The study of the species composition and biotope preferences of small mammals around Kolomak had been carried out for four years (2017–2020). During the study period, 9 species of mouse-like rodents and 3 species of insectivores were found. No Cricetulus migratorius, Terricola subterraneus or Microtus oeconomus were found from the theoretically expected species already known for this area. Around Kolomak, 11 biotopes were investigated, including maple-linden oak forest, agrocenoses, dry and flooded meadows, which are located along the banks of a pond and in a gully-ravine system. The first year of research was in a year of high abundance (2017), and then 9 species were immediately discovered, but species with small abundance, such as Crocidura suaveolens, Sorex minutus, and Micromys minutus, were found in years with a small relative abundance of small mammals. Myodes glareolus, Sylvaemus tauricus and Sylvaemus uralensis are dominant species in the captures. According to the trapping results, 2017 was the year of high relative abundance of small mammals, 2018 was the year of the lowest relative abundance, 2019 and 2020 were years with an average relative abundance. During the study period, 6 species were identified in forest biotopes (Apodemus agrarius, Sylvaemus tauricus, Sylvaemus uralensis, Myodes glareolus, Sorex araneus, and Dryomys nitedula). In ecotones with floodplain biotopes, 8 species were found (Apodemus agrarius, Sylvaemus sylvaticus, Sylvaemus uralensis, Mus musculus, Micromys minutus, Myodes glareolus, and Sorex araneus). Four species (Mus musculus, Sylvaemus sylvaticus, Sylvaemus uralensis, and Microtus levis) were discovered near human settlements. In general, biotopes with the greatest species diversity and number of caught individuals are ecotones of dry and floodplain meadows. In years of high abundance, both species diversity and the number of individuals caught in the oak forest and in ecotones near the pond increased. It should be noted that Myodes glareolus was caught in clear-cuts during the two years (2019-2020) only in the summer of 2020. Earlier, not a single specimen of this species was caught there, although there is a dense weed grass cover in this area and the shrub layer has also grown up in some places, and the clear-cut is surrounded by oak forest.
Graf Johann Mailáths „österreichischer“ Briefwechsel.
Authors: Tamássy-Lénárt Orsolya
Published: May 2021

The present paper deals with the correspondence of Count Johann Mailáth, a supranational go-between in the first half of the 19th century. The essay is a stocktaking of Mailáth's letters, they are collected in the Austrian National Library and the Vienna City Library. The author of the article would like to show that 1) Count Mailáth can be seen as a multiple “Grenzgänger” between communication spaces, languages and genres and 2) that the analysis of his multilingual and multiethnic network can determine several turning points in his writing career. The aim of the contribution is to supplement the previously known biography of the author and to define epochal boundaries in his oeuvre.
Spectral modal modeling by FEM of reinforced concrete framed buildings irregular in elevation
Authors: Kheira Camellia Nehar
Published: May 2021

The irregular buildings constitute a large part of urban infrastructure and they are currently adopted in many structures for architectural or esthetic reasons. In contrast, the behavior of these buildings during an earthquake generates a detrimental effect on their regularity in elevation which leads to the total collapse of these structures.

The objective of this work is essentially to model reinforced concrete framed buildings irregular in elevation subjected to seismic loads by the Finite Element Method (FEM). This modeling aims to evaluate several parameters: displacements, inter-storey drifts and rigidities, using two dynamic calculation methods; one modal and the other spectral modal. The latter is widely used by engineers.

For this purpose, a detailed study of the frames which have several setbacks in elevation is carried out to validate the correct functioning of our FEM calculation code in both cases of modal and modal spectral analyses. The performance, accuracy and robustness of the FEM calculation code produced in this study is shown by the good correlation of the obtained results for the treated frames with those obtained using the ETABS software.
Clinical and paraclinical markers of inflammatory activity in acute tonsilopharyngitis in children
Authors:   Bukovinian State Medical University, Chernivtsi, Ukraine, Ivanova L.A. , Horbatiuk I.B. ,   Bukovinian State Medical University, Chernivtsi, Ukraine, Horbatiuk Ir.B. ,   Bukovinian State Medical University, Chernivtsi, Ukraine
Published: May 2021

Purpose — to study clinical and paraclinical markers of inflammatory activity in acute non-streptococcal and streptococcal tonsillopharyngitis in children to address rational treatment tactics. Materials and methods. To achieve this goal, a comprehensive examination of 102 children with acute tonsillopharyngitis, which was divided into two clinical groups depending on the isolation of beta-hemolytic streptococcus group A during a culture of smears from the mucosa of the tonsils/pharynx. The first (I) clinical group included 68 patients in whom bacteriological examination did not reveal BGSA — GTP of non-streptococcal etiology (nGTP). And 34 children in whom the streptococcal etiology of the disease was determined formed the second (II) clinical group — streptococcal acute tonsillopharyngitis (cGTP). Results. The presence of a subfebrile body temperature in the child increased its post-test probability by 27.4%, and higher fever figures reduced the probability of non-streptococcal GTP by only 4.3%. The absence of symptoms of intoxication syndrome in children with a high degree of specificity — 91.4% confirms the non-streptococcal nature of the disease. Expressive layers on the tonsils are more characteristic of streptococcal GTP, and the assessment of their severity <3 points was much more common in patients with non-streptococcal disease. When using the determination of the content of C-reactive protein <50.0 mg/l in the venous blood of children as a test, allows you to verify the non-streptococcal nature of acute tonsillopharyngitis with a fairly high sensitivity — 73.5% (95% CI 63.7–81.8), however, low specificity — 35.3% (95% CI 26.0–45.5). Conclusions. Indicators of local inflammation and clinical manifestations of the general inflammatory reaction were less pronounced in patients with non-streptococcal GTP. Indicators of C-reactive protein <50.0 mg/l in venous blood with high sensitivity (73.5%; 95% CI 63.7–81.8) and relative risk 1.2 (95% CI 1.0–1.5) probably testified in favor of the nonstreptococcal nature of acute tonsillopharyngitis. The research was carried out in accordance with the principles of the Helsinki Declaration. The study protocol was approved by the Local Ethics Committee of these Institutes. The informed consent of the patient was obtained for conducting the studies. No conflict of interest was declared by the authors. Key words: acute tonsillopharyngitis, children, clinic, C-reactive protein.
Bell's palsy: а literature reference and own clinical case
Authors:   Donetsk National Medical University, Lуman, Ukraine, Khapchenkova D.S. , Dubyna S.О. ,   Donetsk National Medical University, Lуman, Ukraine, Yena K.Yu. ,   Donetsk National Medical University, Lуman, Ukraine
Published: May 2021

Bell's palsy is an acute peripheral paralysis of the facial nerve of unknown etiology. The facial nerve is the seventh cranial nerve. One part of the facial nerve is the motor fibers that innervate the facial muscles. The facial nerve emerges from the brain between the posterior edge of the pons and the medulla oblongata with two roots. The main motor nucleus is responsible for the voluntary control of facial muscles. There are central and peripheral paresis of the facial nerve. Central paresis occurs during а stroke. Peripheral paresis (unilateral muscle weakness of the entire half of the face) develops when the facial nerve is affected from the motor nucleus to the exit from the stylomastoid foramen. Among the various localizations of damage to the peripheral part of the facial nerve, the most common is Bell's palsy as a result of edema and compression of the nerve in the bone canal. Clinical symptoms of facial nerve neuropathy are characterized by acute paralysis or paresis of facial muscles: smoothed skin fold on the affected side of the face; swelling of the cheeks; an inability to close the eyelid, Bell's symptom; facial muscle weakness. The degree of damage is determined by the House Brackmann scale. Treatment with glucocorticosteroids, antiviral drugs, physiotherapy procedures. Purpose — to present a clinical case of a patient with Bell's palsy as an example of delayed diagnosis, treatment and, as a result, long-term restoration of the facial muscles functions. Clinical case. The boy after suffering from the flu, began to complain of acute ear pain, vomiting, lack of movement in the right half of the face, dizziness, insomnia. Asymmetry of the face, lack of movement of the right side of the face, inability to completely close the right eye, a symptom of sailing on the right, muscle weakness were revealed during examination. The general condition of the patient improved, facial expressions were restored, sleep was normalized after hormonal, metabolic therapy, physiotherapy procedures. Conclusions. The article describes a case of inflammation of the facial nerve or Bell's palsy in a teenager who developed on the background of the flu. Timely diagnosis and treatment of the above pathology is the key to a satisfactory prognosis for the restoration of facial expressions, prevention of negative consequences of the the disease. The research was carried out in accordance with the principles of the Helsinki Declaration. The informed consent of the patient was obtained for conducting the studies. No conflict of interest was declared by the authors. Key words: facial nerve, Bell's palsy, flu, inflammation.
Education Management Implementation Course and Training Institutions in Improving Graduation Quality and Absorption in the World of Business and Industry (DUDI)
Authors: Slametno Slametno , Sauri Sofyan , Muchtar Hendi Suhendraya , Warta Waska
Published: May 2021

The implementation of education management for Course and Training Institutions in improving the quality of graduates and absorption in the Business and Industrial World (DUDI) is very much needed in order to sustain the existence of Course and Training Institutions due to the level of quality of graduates and absorption in the Business and Industrial World (DUDI) as indicators of prospective students. in choosing a Course and Training Institute (LKP).
Management of Character Education in the Development of Leading High School Students
Authors: Ilmi Zainal , Ulfiah Ulfiah , Noval Sayid Muhammad Rifqi , Kosasih Usep
Published: May 2021

This research entitled "Character Education Management in the Development of High School Students' Noble Morals (Qualitative Descriptive Study in SMAN 1 and SMA Islam Qardhan Hasana Kota Banjar Baru)". This study aims to determine and analyze: (1) Planning, (2). Organizing (3). Implementation (4). Evaluation (5). Barriers to implementation (7) Solutions to implementation problems. Three important foundations are used in this research, including theological, philosophical, and six value systems. The theories that underlie this research are management theory and quality theory. This research uses a qualitative approach with descriptive methods. Data collection was carried out by triangulation techniques using interviews, document study, and field observations. With research subjects the principal, teacher. Data analysis was carried out through data reduction, data presentation, and conclusions. The main findings of this study were: (1) The planning of character education in the development of noble character in high school has been structured quite well and systematically, but its implementation still faces several obstacles, namely human resources (2). Organizing has been running according to the program with the same principles of understanding, responsible commitment, although not yet supported by adequate job analysis. (3) Implementation has gone well. However, it has not paid attention to the resources owned. (4) Evaluation according to the school work program in the future, however, it has not been followed up with innovative programs that are in accordance with the needs. (5) Obstacles in implementation can be implemented although not evenly distributed (7) . Solutions in implementation can be done to overcome obstacles through a process of coaching and development. Recommendations for this study were conveyed to various parties, including the Principal, so that planning was supported by adequate teacher resources. Organizing should first conduct a job analysis. Implementation should pay attention to the resources owned in order to achieve targets effectively and efficiently. Evaluation is recommended to pay attention to the results obtained during the implementation so that the program is sustainable. It is recommended that teachers continue to improve competencies, both pedagogical, social, personal and professional competencies.
Loss of Labrets and Rise of the Gospel
Authors: Vanast Walter
Published: May 2021

Labrets, for centuries a ubiquitous feature of male Kukpugmiut facial décor, are seldom mentioned in Western Arctic contact studies. Via early lithographs and photos, this essay reviews their three-tiered typology, visualizes social strata affecting their use, and defines when they were worn. As well, it describes the surgery required for labrets’ first insertion, their role as a credibility-enhancing display (CRED), conduct related to their high cost, and the vectors, including missions, that drove their disappearance.
Cardiovascular risk factors and blood pressure response to various types of exercise in veteran athletes
Authors: Shmoilova A. S. , Vyalova M. O. , Shvarts Yu. G.
Published: May 2021

Aim. To study the main cardiovascular risk (CVR) factors and assess the blood pressure (BP) response to various types of exercise in veteran athletes.

Material and methods. In order to identify the main CVR factors, 234 competitive athletes and 29 persons practicing physical training were interviewed. We also measured their pre- and post-exercise BP. The previously diagnosed hypertension (HTN) was also taken into account.

Results. Among the participants, HTN was diagnosed in 48,5% of athletes, obesity — in 21%, smoking — in 22,9%, while 15,5% had a positive family history of coronary artery disease. The combination of two or more studied risk factors was observed in 35,7% of the subjects. The prevalence of the studied risk factors in participants significantly depended on the type of physical activity. The most unfavorable situation was obtained among hockey players. The highest pre-exercise diastolic BP values were registered in football players (p<0,05), while after exercise, in hockey and football players. In persons with obesity and HTN, the pre- and post-exercise systolic and diastolic BP, as well as the double product, were significantly (p<0,05) higher than in those without HTN and obesity.

Conclusion. Veteran athletes practically do not differ from the general population in prevalence of HTN, smoking, and obesity. Elevated pre-and post-exercise BP values (>139/89 mm Hg) was recorded in >40% of veteran athletes. The highest BP levels were found among volleyball and football players. The factors predisposing to such an increase in pre- and post-exercise BP in veteran athletes are obesity, diagnosed HTN, and a positive family history of coronary artery disease. There is reason to consider BP >139/89 mm Hg in the early recovery period as an unfavorable indicator.
Effectiveness of myocarditis therapy depending on the diagnosis approach (with or without myocardial biopsy)
Authors: Blagova O. V. , Nedostup A. V. , Sedov V. P. , Zaitsev A. Yu. , Novosadov V. M. , Kogan E. A.
Published: May 2021

Aim. To evaluate the effectiveness of myocarditis therapy depending on the diagnosis approach (with or without myocardial biopsy).

Material and methods. The study included 83 patients ≥18 years old with severe and moderate myocarditis (25 women and 58 men; mean age, 45,7±11,7 years), established by myocardial biopsy (group 1, n=36) or by a non-invasive diagnostic algorithm (group 2, n=47), for which immunosuppressive therapy (IST) was carried out. Inclusion criteria were left ventricular (LV) end-diastolic dimension >5,5 cm and ejection fraction (EF) <50%. An endomyocardial (n=31) or intraoperative (n=5) biopsy with a study of the viral genome and level of anticardiac antibodies were performed. Coronary angiography (29%), cardiac multislice computed tomography (75%), cardiac magnetic resonance imaging (41%), and 99mTc-MIBI scintigraphy (35%) were also carried out. The mean follow-up period was 3 years (36 [12; 65] months). The study was approved by the Intercollegiate Ethics Committee.

Results. The groups were completely comparable in age, baseline parameters (class III [2,25; 3] and III [2; 3] heart failure (HF); end-diastolic LV dimension, 6,7±0,7 and 6,4±0,7 cm; EF, 29,9±8,7 and 31,4±9,3%), the extent of cardiac therapy (excluding the administration rate of в-blockers — 94,4 and 78,7%, p<0,05) and 1ST (methylprednisolone in 91,7 and 89,4% of patients at a mean dose of 24 [16; 32] and 20 [15; 32] mg/day, azathioprine in 50,0 and 46,8% of patients at a mean dose of 150 mg/day or mycophenolate mofetil 2,0 g/day in 30,6% in group 1, hydroxychloroquine 0,2 g/day in 27,8 and 23,4%). Biopsy in group 1 revealed active/borderline (61/39%) myocarditis, in 8 patients — viral genome in the myocardium, including parvovirus B19 in 7 of them. Both groups showed a comparable significant increase in EF after 6 months up to 37,6±8,1 and 42,6±11,5% (p<0,001) and after 27 [12; 54] months up to 43,4±9,6 and 45,5±12,3% (p<0,001), as well as a significant decrease in HF class to 2 [1; 2] in both groups. An increase in EF by ≥10% was recorded in 70 and 72% of patients, respectively. The mortality rate was 13,9 and 12,8%. Taking into account the only transplantation in group 2, the death+transplantation endpoints reached 13,9 and 14,9% of patients (without significant differences between the groups).

Conclusion. In patients with severe and moderate myocarditis diagnosed with and without myocardial biopsy, the effectiveness of combined therapy, including IST, was comparable. If it is impossible to perform a biopsy, complex non-invasive strategy makes it possible to diagnose myocarditis with different probability rate and conduct an effective IST, the refusal of which mostly is not justified.
Ultrastructural mitral valve abnormalities in infective endocarditis
Authors: Mukhamadiyarov R. A. , Kutikhin A. G.
Published: May 2021

Aim. Using an original method based on backscattered scanning electron microscopy, to study the structural features of the mitral valve leaflets in infective endocarditis.

Material and methods. We examined 9 mitral valves extracted during surgical interventions due to structural malfunction in patients with infective endocarditis (IE). The samples were fixed in buffered paraformaldehyde with osmium tetraoxide postfixation. After dehydration by increasing alcohol concentration and acetone, the samples were placed in epoxy resin. After the resin has polymerized, the samples were ground and then polished to the desired depth. To increase the electronic contrast, the samples were treated with a uranyl acetate alcohol solution during dehydration and with Reynolds' lead citrate after polishing the epoxy blocks. The samples were visualized by backscattered scanning electron microscopy at an accelerating 15-kV voltage.

Results. Structural leaflet injuries caused by IE were most pronounced in the central part and the base. Necrotic areas were extensive electron-dense formations located in the central leaflet layers, or displaced towards the ventricular surface. The electron-dense material in the necrotic area was poorly structured and contained individual cells and bacteria. Bacteria were also present outside the necrotic area. Necrotic areas were surrounded by a layer of a modified extracellular matrix, usually covered with a fibrin layer. Among the extracellular matrix fibers, the macrophages, smooth myocytes and fibroblasts was noted. The fibrin layer, in addition to these cells, contained a large number of blood vessels and was often covered with endothelium.

Conclusion. Infection of the mitral valve leaflets causes a simultaneous inflammatory response and regeneration activation. Without adequate regulatory factors, the processes of inflammation and connective tissue creation lead to structural and functional leaflet failure. Specific causes may be overgrowth of necrotic and inflammatory areas, edema and fiber orientation disorder, as well as leaflet rupture.
Relações lineares entre incidência e severidade foliar da queima das folhas em diferentes genótipos de cenoura
Authors: Marcuzzo Leandro Luiz , Teixeira Vandréia Ricobom
Published: May 2021

RESUMO A ocorrência da queima das folhas na cenoura pode reduzir o rendimento e comprometer a qualidade da raiz. O objetivo do trabalho foi estabelecer a relação entre incidência e severidade na intensidade da queima das folhas em diferentes genótipos de cenoura. O delineamento foi de blocos casualizados, com quatro repetições e oito tratamentos constituídos dos genótipos Alvorada calibrada média Brasília, Brazlândia, Ferracini, Flakee, Nantes, Nantes Express e Suprema calibrada média com objetivo de gerar um gradiente de intensidade de doença. Semanalmente foi avaliada a intensidade da doença pela severidade e incidência. Os dados obtidos foram submetidos à análise de regressão linear. Utilizando a equação com melhor ajuste nas duas safras e substituindo o valor de severidade de 1% obtém-se incidência de 1,09; 1,63; 1,99; 2,16; 1,78; 1,97; 1,92; 1,55% respectivamente para os genótipos Alvorada calibrada média Brasília, Brazlândia, Ferracini, Flakee, Nantes, Nantes Express e Suprema calibrada média. A severidade estimada com base na incidência e vice-versa possibilita seu uso pela assistência técnica no monitoramento da queima das folhas em diferentes genótipos de cenoura.
Metodologia de esporulação para fungos da família Botryosphaeriaceae
Authors: Vieira Regimara Francisca Bernardo da Silva , Brasil Suane de Oliveira Souza , Fonseca Wéverson Lima , Lima Wallysson Nascimento , Cardoso José Emilson
Published: May 2021

RESUMO Os fungos pertencentes à família Botryosphaeriaceae são potenciais fitopatógenos e por apresentarem hábito cosmopolita, parasítico, endófitico e uma grande diversidade genética, morfológica e ecológica têm uma considerável importância nos estudos de doenças de plantas. A dificuldade para esporulação e os longos períodos de tal etapa no ciclo reprodutivo dos fungos desta familia são as principais limitações para a manipulação dos mesmos in vitro. Diante disto, este trabalho objetivou testar frutos de ata (Annona squamosa) como meio de cultura alternativo, afim de obter tempos de esporulação inferiores aos já descritos na literatura. Por fim, a utilização dos frutos de ata como meio de cultura demonstrou-se eficiente na esporulação dos isolados testados. Alem disso, dois dos isolados avaliados so foram capazes de esporular nos frutos de ata.
Viability and location of Microdochium albescens in irrigated rice seeds produced in pre-germinated cropping system
Authors: Scheidt Bruno Tabarelli , Berghetti Juliano , Casa Ricardo Trezzi , Martins Flávio Chupel , Recalcatti Weliton , Rossarola Valdemir
Published: May 2021

ABSTRACT The aims of this study were to quantify the viability of Microdochium albescens in irrigated rice seeds stored during the time between harvests and to quantify its incidence in the seed structures. Samples of irrigated rice seeds of the cultivars SCS122 Miura and SCS121 CL were monthly collected and stored during the time between harvests 2018/19. Pathology analysis and viability quantification were performed in the laboratory. The location of the fungus in the seeds was determined by separating lemma, palea, endosperm and embryo, with subsequent disinfestation and sowing in culture medium. The fungus M. albescens showed 77.8% seed storage viability for nine months, considering the average of lots and cultivars. Average incidence was 48% in the lemma, 43.7% in the palea, 24.7% in the endosperm and 20.7% in the embryo. The fungus M. albescens remains viable in rice seeds between harvests, while mycelium is detected at a higher incidence in the external tissues of caryopsis.
O papel de Cecilia Payne na determinação da composição estelar
Authors: Vieira Patrese Coelho , Massoni Neusa Teresinha , Alves-Brito Alan
Published: May 2021

O presente trabalho apresenta um relato histórico sobre a astrofísica britânico-estadunidense Cecilia Payne (1900–1979), cuja trajetória pessoal esteve envolta em dificuldades enfrentadas enquanto mulher na busca por reconhecimento e ascensão acadêmica. Exibe, também, sua importância fundamental na determinação da abundância relativa dos elementos químicos nas estrelas durante sua pesquisa de doutorado, na década de 1920. Para tal, tomamos por base tanto publicações da época, realizadas pela própria cientista e também por seus pares, quanto fontes posteriores que tratam de sua história de vida e carreira profissional. Entendemos que a tese de doutorado de Payne representa um marco na Astrofísica, por apontar a alta concentração de hidrogênio e hélio na composição das atmosferas estelares em relação aos demais elementos analisados, achado que contrariava a concepção vigente, na qual elementos metálicos, como o ferro, teriam maior preponderância. Mesmo diante de tal feito, atualmente visto como pioneiro, Cecilia Payne permaneceu subvalorizada profissionalmente por ser mulher.
Hypoparathyroidism and Fahr’s syndrome: case series
Authors: Arruda Anna Catarina Gatzk de , Guerra Amanda Carolina Damasceno Zanuto , Pessoa Carlos Henrique , Marquezine Guilherme Figueiredo , Delfino Vinicius Daher Alvares
Published: May 2021

Abstract Hypoparathyroidism (HP) is a rare metabolic disorder and causes hypocalcemia because parathyroid hormone secretion is inadequate to mobilize calcium from bone and reabsorb calcium from kidney and gut. Anterior neck surgery is the most common cause of acquired HP and autoimmune HP is the next most common form in adults. The duration, severity, and rate of development of hypocalcemia determine the clinical presentation. A variety of organs can be affected by calcification, more frequently kidneys, but also joints, eyes, skin, vasculature, and other organ systems and, although rarely seen, intracerebral calcifications. We report four cases of bilateral basal ganglia calcifications (BGC) also known as Fahr’s syndrome related to hypoparathyroidism. Fahr’s syndrome is characterized by bilateral symmetrical calcification of areas of the brain that control movements including basal ganglia, thalamus, and others; it is a rare inherited or sporadic neurological disorder with a prevalence of less than 1/1.000.000. Main symptoms related to bilateral BGC include extra-pyramidal and cerebellar disorders, cognitive impairment, epileptic seizures, and psychiatric changes. BGC has been established as a possible outcome of HP. Its prevalence, demonstrated in the HP cohorts, varied significantly from 12 up to 74%. Currently, computed tomography (CT) is the most valuable method for diagnosis. The treatment include symptomatic support and identification of causes, but there is no specific treatment limiting the progression of calcification in the basal ganglia. Especially in HP, an early treatment can prevent calcification and neurophysiological disorders.
Factors affecting the stability of maxillary extraction site closure
Authors: BRESSANE Larissa , JANSON Guilherme , NAVEDA Rodrigo , FREITAS Marcos Roberto de , GARIB Daniela
Published: May 2021

ABSTRACT Introduction: A side effect observed in cases treated with extractions is the instability of orthodontic space closure. Objective: The aim of this study was to investigate the influence of gingival invagination, presence of third molars and facial pattern, on the stability of orthodontic space-closure in the maxillary arch. Methods: Ninety-nine subjects (41 male and 58 female) with Class I malocclusion treated with four premolars extraction were evaluated. Extraction sites reopening and gingival invaginations were evaluated in scanned dental models in the posttreatment and 1-year posttreatment stages (mean age 16.1 years). Third molars presence was evaluated at 1-year posttreatment panoramic radiographs, and the facial pattern (SN.GoGn) was evaluated in the initial lateral headfilms. Multiple logistic regression analysis was used to estimate the influence of the aforementioned independent variables on the frequency of extraction space reopening. Results: Space reopening was observed in 20.20% of the subjects 1-year post-debonding. Gingival invaginations were present in 25.73% of quadrants after debonding and in 22.80% 1-year posttreatment. The mean pre-treatment SN.GoGn was 35.64 degrees (SD=5.26). No significant influence was observed of the three independent variables on the instability of extraction site closure. Conclusions: The presence of gingival invaginations, third molars and facial growth pattern do not seem to influence maxillary extraction sites reopening.
Avaliação da deglutição e indicadores clínicos associados em crianças após correção cirúrgica de doença cardíaca congênita
Authors: Fernandes Heloisa Regina , Sassi Fernanda Chiarion , Andrade Claudia Regina Furquim de , Lopes Debora Maria Befi
Published: May 2021

RESUMO Objetivo Identificar os marcadores clínicos associados às alterações da deglutição em crianças após a correção da doença cardíaca congênita e correlacionar esses marcadores às categorias da escala Risk Adjustment for Congenital Heart Surgery 1 (RACHS-1). Métodos Foi realizado um estudo retrospectivo observacional, utilizando a base de dados eletrônica do centro de pediatria para crianças admitidas em um hospital, em decorrência de doença cardíaca congênita. Foram coletados dados da avaliação de deglutição e a presença de disfagia foi classificada de acordo com a Dysphagia Management Staging Scale (DMMS). Foram incluídos os dados demográficos, os marcadores clínicos e o risco de mortalidade, de acordo com a RACHS-1. Resultados A amostra final do estudo foi composta por 108 pacientes. Os achados mais relevantes foram: os sinais mais graves de disfagia estiveram associados ao aumento da permanência no hospital (p=0,005); ao maior número e tempo de intubações orotraqueais (p=0,022 e 0,005, respectivamente); ao maior tempo entre a admissão hospitalar e a avaliação da deglutição (p=0,003); ao maior tempo entre o procedimento cirúrgico e a avaliação da deglutição (p=0,043) e ao maior número de sessões fonoaudiológicas para remoção da via alternativa de alimentação e retorno seguro para via oral (p<0,001). Não foram encontradas correlações entre o risco de mortalidade das crianças e os sinais alterados na avaliação da deglutição. Conclusão Os resultados do estudo contribuem para o conhecimento atual de que crianças com doenças cardíacas que precisam de correção cirúrgica apresentam dificuldades alimentares e necessitam atendimento hospitalar prolongado. Não houve correlação entre as categorias da escala RACHS-1 e os sinais de alteração na avaliação clínica da deglutição.
Participação familiar no cuidado de crianças com transtorno fonológico
Authors: Fernandes Delta Regina , Souto Bernardino Geraldo Alves
Published: May 2021

RESUMO Objetivo Investigar o entendimento de pais ou cuidadores de crianças em tratamento fonoaudiológico sobre a importância do envolvimento familiar no projeto terapêutico. Métodos Por meio de estudo clínico-qualitativo, analisou-se o conteúdo temático de treze entrevistas com pais ou cuidadores de crianças com transtorno fonológico, mediante os referenciais da Humanização do Cuidado em Saúde, do Cuidado Centrado na Pessoa e do Cuidado Centrado na Família. Resultados Alguns entrevistados consideravam importante o envolvimento familiar e participavam ativamente do cuidado. Outros, entretanto, ressaltaram que fatores contextuais (ambientais e pessoais) dificultavam sua participação no projeto terapêutico fora do cenário ambulatorial. Houve, também, quem não compreendia a necessidade de envolvimento familiar e concentrava sua crítica na assistência. Conclusão O projeto terapêutico de crianças com transtorno fonológico precisa contemplar os cuidadores e a família no plano de cuidados, tanto quanto a própria criança em tratamento. Nesse projeto, devem ser consideradas as percepções desses cuidadores e familiares relacionadas ao transtorno, contextualizadas em suas contingências existenciais e funcionais.
Aplicativos móveis desenvolvidos para crianças e adolescentes que vivem com doenças crônicas: uma revisão integrativa
Authors: Ferreira Danielle Portella , Gomes Junior Saint Clair dos Santos
Published: May 2021

Este artigo apresenta os resultados de uma revisão integrativa de literatura sobre os métodos de desenvolvimento de aplicativos móveis para crianças e adolescentes que vivem com doenças crônicas. Foi analisada a literatura disponível no Medline/PubMed, Web of Science, SciELO, Lilacs e Embase, no período de 2010 a 2020. De 87 artigos identificados nas bases de dados, oito atenderam aos critérios de inclusão e qualidade. Observou-se que o uso do humor, da gamificação e da linguagem simples e visual atraente despertou o interesse e facilita a utilização do aplicativo. A análise da literatura evidenciou que o desenvolvimento de aplicativos para crianças e adolescentes deve reconhecer as necessidades do usuário e incluí-lo em sua criação. Os aplicativos móveis de saúde favoreceram a adesão e o autocuidado e foram importantes aliados no cuidado de crianças e adolescentes adoecidos cronicamente.
Desafios na comunicação entre homens e seus médicos de família
Authors: Dantas Guilherme Coelho , Figueiredo Wagner dos Santos , Couto Marcia Thereza
Published: May 2021

O artigo discute aspectos da comunicação na relação médico(a) + homem usuário no contexto de serviços com Estratégia de Saúde da Família (ESF). A presente pesquisa qualitativa foi realizada em três fases distintas e articuladas, com triangulação de técnicas (entrevistas semiestruturadas e grupos focais) e com homens usuários e médico(a)s de Família e Comunidade (MFC) em serviços de saúde em Florianópolis, SC, Brasil. As análises apontam que a busca por consulta é guiada por sintomas e/ou pressão de familiares e pela expectativa por exames que comprovem estarem saudáveis. O(a)s MFC incentivam o autocuidado sem efetivamente convencer os usuários. A troca frequente de médico(a) é um forte entrave para o vínculo e a comunicação. O estudo contribui para o debate sobre a relação médico(a) + pessoa em segmento da população reticente e pouco envolvido com o autocuidado e a prevenção.
Thoughts on Higher Medical Education under Major Public Health Emergencies: Thinking Ahead after COVID-19 Outbreak--A Descriptive Study
Authors: W Lin , Y Chen , S Shi , J Liang , H Huang , L Li , L Cai , L Zong , N Wang , J Wen , G Chen
Published: May 2021

Background: The spread of coronavirus disease 2019 (COVID-19) has posed great threat to the global population’s health and nearly every medical school throughout the world suspended classes as a precaution against the virus. This study is aimed at exploring a more advanced online teaching and learning pattern for medical school in the future especially during a Public Health Emergency of International Concern (PHEIC) and to evaluate the efficacy of the teaching methods in improving students’ professionalism, knowledge and learning skills including problem analyzing and solving, teamwork skills, self-directed learning, as well as adaptability and acceptance to the courses.
Not dominance but the loss of binocularity determines the success of monovision
Authors: Veerle Van Severen , Sven Van Laere , Marcel Ten Tusscher
Published: May 2021

Purpose: To determine whether ocular dominance strength influences success of monovision Design: Single-center, prospective, double blind crossover. Subjects received contact lenses with reading addition added to the left eye in the first trial period and to the right eye in the second period so that the type of monovision was randomized and blinded for the test subject and the investigator. Methods: 17 presbyopic subjects, aged 50-65, received conventional and crossed monovision, each for 2 weeks. Satisfaction, stereopsis (TNO, Titmus) and Snellen visual acuity were measured. Ocular dominance was examined according to Haidinger and +1D test. Results: Pearson correlation coefficient between strength of ocular dominance and subject satisfaction was ρ=0.088 for the conventional and ρ=0.000 for the crossed group. 93% of subjects were most satisfied with the type of monovision that yielded the highest Titmus score. For the TNO test this was only 64%. A statistical significant interaction effect was shown for this relationship (ρ=0.019). Conclusion: A significant correlation between dominance strength, refraction error and satisfaction could not be found. However, we observed that the highest stereopsis score according to the Titmus test was more likely to yield a higher satisfaction when comparing conventional and crossed monovision. When a physician opts for monovision correction, the Titmus test can be performed with test spectacles or contact lenses to decide which eye should be corrected for distance vision. The choice should be in favor of the correction that yields the best Titmus score.
BILATERAL SUDDEN MIXED HEARING LOSS: CASE STUDY
Authors: Piłka Edyta , Pastucha Małgorzata , Jędrzejczak Wiesław , Orkan-Łęcka Ewa , Włodarczyk Elżbieta , Kochanek Krzysztof
Published: May 2021

Background

This study presents a case of a patient with sudden hearing loss of a mixed type in both ears.

Case report

A 45-year-old man came to our center for consultation because he had had no improvement in hearing after therapy in another clinic. In our clinic the patient was treated for 2 weeks. During each of his visits to our center, a battery of tests assessing the hearing organ were performed: pure-tone audiometry, impedance audiometry, and absorbance measurement. Decisions concerning the treatments to be applied were agreed between both centers managing the patient. In consecutive visits improvement of hearing was observed.

Conclusions

As test results showed, treatments with a wider spectrum of action, such as anti-inflammatory and immunosuppressant drugs, inhalations with an AMSA inhaler, and hyperbaric oxygen therapy restored the patient’s hearing and eliminated the concurrent ailments he reported during the first visit.
A Leymus arenarius előfordulása a Kiskunságban
Authors: Csecserits Anikó , Bakró-Nagy Zsolt , Kelemen András , Rédei Tamás , Tóth Gábor , Tölgyesi Csaba
Published: May 2021

Egy idegenhonos, évelő fűfaj, a buckalakó partirozs (Leymus arenarius (L.) Hochst.) hat kivadult állományát találtuk a Kiskunságban. A fajnak a Nagyalföldről eddig még nem volt adata. A leg­több előfordulás több száz négyzetméter kiterjedésű, néhány esetben a faj szinte monodomináns állo­mányt alkot, és az egyik állomány már egy nyílt homokpusztagyepben is megjelent. Feltételezésünk sze­rint ez a faj a Duna–Tisza közi homokhátságon akár inváziós fajjá is válhat.
Teknologi Georuang dalam Analisis Potensi dan Pemetaan Risiko Tsunami di Pantai Barat Semenanjung Malaysia
Authors: Sauti Noor Suhaiza , Daud Mohd Effendi , Kaamin Masiri , Remali Najihah
Published: May 2021

Gempa bumi yang berlaku pada 26 Disember 2004 telah mencetuskan gelombang tsunami terbesar menyebabkan limpahan tersebar di seluruh Lautan Hindi. Impaknya mengakibatkan kerosakan yang luas, kehilangan harta benda dan kehidupan terjejas di sepanjang pantai meliputi 12 negara di sepanjang Lautan Hindi. Kehilangan nyawa juga melibatkan rakyat dari 27 negara dari bahagian lain di dunia termasuklah di Malaysia terutamanya di pantai barat Semenanjung Malaysia. Kesignifikanan daripada bencana tsunami di Lautan Hindi ini, suatu tindakan persediaan dan mitigasi perlu dilaksanakan oleh pihak pengurusan bencana untuk menilai dan mengambil langkah yang bersesuaian untuk menangani dan mengurangkan risiko bencana tsunami. Kajian ini adalah untuk menganalisis potensi dan memetakan kawasan risiko tsunami di kawasan persisiran pantai barat Semenanjung Malaysia. Analisis potensi bahaya tsunami bagi penduduk di pantai barat Semenanjung Malaysia khususnya di Kota Kuala Muda, Kedah dilaksanakan menggunakan perisian Tsunami Display Program untuk memodelkan mekanisme pembentukan tsunami, perambatan gelombang dan tahap limpahan tsunami. Seterusnya bagi mengenal pasti risiko iaitu tahap kerentanan sesuatu kawasan terhadap bahaya tsunami, teknologi georuang diaplikasikan untuk menganalisis lokasi kawasan yang berbahaya dan selamat dengan mengambil kira faktor-faktor seperti guna tanah, jarak kawasan daripada persisiran pantai dan permukaan topografi atau kecerunan serta tinggi sesuatu kawasan. Fungsi tindihan lapisan dan pengelasan dalam teknologi georuang digunakan untuk mengelaskan kawasan kepada zon sangat bahaya, zon bahaya, zon sederhana dan zon selamat sekiranya berlaku tsunami. Hasil kajian ini mengenal pasti kawasan berpotensi terjejas selepas bencana iaitu Kampung Kuala Sungai Muda, Kampung Masjid, Kampung Kepala Jalan dan Kampung Padang Salin (Kampung Hujong Permatang) dengan purata jarak daripada garisan pantai kurang daripada 400 m serta peta kawasan berisiko berpandukan tahap kerentanan bencana tsunami di Kota Kuala Muda, Kedah. Sumbangan daripada kajian ini diharap dapat membantu pihak berkenaan dalam urusan persediaan, perancangan dan mitigasi bencana tsunami pada masa akan datang.
The Effect of Bioactive Glass and Sintering Conditions on the Properties of Titanium-Hydroxyapatite Composites
Authors: Abdulmunem Mohamed , Kutty Muralithran G. , Abd Majid Wan Haliza Binti , Dabbagh Ali , Abu Kasim Noor Hayaty , Yahya Noor Azlin Binti , Abdullah Hadijah
Published: May 2021

Titanium-hydroxyapatite (Ti-HA) based composites have been widely investigated as viable materials to be used in dentistry. However, sintering of these composites is very challenging due to decomposition of HA and oxidation of Ti. The objective of this study was to investigate the effect of incorporating a bioactive glass in Ti-HA composites sintered in different atmospheric conditions. The bioactive glass was prepared and added to different percentages of Ti-HA mixtures and divided into two groups. Samples in Group 1 were sintered with air atmosphere, while samples in Group 2 were sintered with vacuum furnace. All samples were later subjected to XRD, SEM, density, micro-hardness, and compression strength tests. XRD results showed that in Group 1, the major phases were assigned to Ti and HA while the minor phases were assigned to oxidised Ti. Whereas, Group 2 showed that the major phases were assigned to HA and the minor phases showed decomposition of HA to Ca3(PO4)2(TCP) and Ca4(PO4)2O (TTCP). Oxidized Ti was also present in this group. In terms of density, micro-hardness and compression strength, statistical analyses showed that samples in Group 1 have a significant difference (p = 0.000) as compared to those in Group 2. Sintering Ti-HA composites incorporated with BGby using air atmosphere furnace could reduce the decomposition of HA and oxidation of Ti, thus improve the density, micro-hardness and compression strength of the composites.