bluuebunny/crossref_metadata_2025 huggingface dataset:
Aligning Biobanks and Data Integration Centers Efficiently (ABIDE_MI)
Authors: Prokosch Hans-Ulrich , Baber Ronny , Bollmann Paula , Gebhardt Marie , Gruendner Julian , Hummel Michael
Published: May 2022

ABIDE_MI is a complementary funded 18 months project within the German Medical Informatics Initiative (MII), which aims to align IT infrastructures and regulatory/governance structures between biobanks/biobanking IT and the MII data integration centres (DIC) at German university hospitals. A major task in 2021 was the systematic collection of all documents describing rules, as well as proposal/contract templates for data and biosample use and access at each of the participating 24 university hospitals and their comparison with MII-wide consented data sharing principles, documents and governance structures. This comparison revealed large heterogeneity across the ABIDE_MI sites and further, redundant structures/regulations currently established at the German university hospitals. A second task was the design and stepwise development of an IT network infrastructure with central components (data and biosample query portal) and decentralized standardized FHIR servers to capture the standardized FHIR-based core data set modules (resources) defined within the MII working group “Interoperability”. Subsequent steps in the project are the harmonization of the data and biosample sharing governance/regulation frameworks at each ABIDE_MI site, creating synergies for the research infrastructures at the German university hospitals and to link those resources to the German Portal for Medical Research Data and with the BBMRI-ERIC Directory and Negotiator tools.
Burnout and Depression Detection Using Affective Word List Ratings
Authors: Haug Sophie , Kurpicz-Briki Mascha
Published: May 2022

Burnout syndrome and depression are prevalent mental health problems in many societies today. Most existing methods used in clinical intervention and research are based on inventories. Natural Language Processing (NLP) enables new possibilities to automatically evaluate text in the context of clinical Psychology. In this paper, we show how affective word list ratings can be used to differentiate between texts indicating depression or burnout, and a control group. In particular, we show that depression and burnout show statistically significantly higher arousal than the control group.
The Digital Transformation of Mental Health Care and Psychotherapy – A Market and Research Maturity Analysis
Authors: Schmid Alexander M. , Kurpicz-Briki Mascha
Published: May 2022

Digital technology trends for mental health, instantiated with only emerging use cases or already established applications, offer significant potential to improve clinical therapy and care. In this paper, we identify five major trends, mHealth/eHealth, telehealth, artificial intelligence (AI), big data, and biosensors/wearables; describe seven specific technology use cases for mental health care and psychotherapy; and provide an overview of their maturity in practice.
Rehago – A Home-Based Training App Using Virtual Reality to Improve Functional Performance of Stroke Patients with Mirror Therapy and Gamification Concept: A Pilot Study
Authors: Chen Chien-Hsi , Kreidler Theresa , Ochsenfahrt Anika
Published: May 2022

Stroke is one of the prevalent diseases which leads to functional disabilities such as hemiparesis or hemiplegia. It is common practice to treat patients with proper rehabilitation as early as possible for better prognosis after the onset of stroke. One of the effective therapeutic techniques for treating stroke patients is mirror therapy, which can potentially facilitate patients’ motor function recovery through repetitive practice. “Rehago” is a software as medical device that implements the concept of mirror therapy in combination with gamified exercises into virtual reality (VR) to provide a home-based rehabilitation environment for stroke patients. In this study, 48 stroke patients completed the full course of intervention with Rehago and their functional performance of pre- and post-intervention was investigated. The intervention with Rehago was predefined as 30 minutes training per day, 5 days per week over a course of 6 weeks. The patient’s progress was evaluated by their therapists every 14 days, with a baseline assessment before the intervention began. The results showed an average improvement of 5.54 points in the Functional Independence Measurement score, and an improvement of 7.13 points in the assessed quality-of-life score (EQ5D-5L). An improvement of the FIM score and the quality-of-life score in EQ5D-5L was observed, indicating it is beneficial to the patients using Rehago as a home-based rehabilitation tool.
Classifying Numbers from EEG Data – Which Neural Network Architecture Performs Best?
Authors: Selvasingham Sugeelan , Denecke Kerstin
Published: May 2022

This paper presents a comparison of deep learning models for classifying P300 events, i.e., event-related potentials of the brain triggered during the human decision-making process. The evaluated models include CNN, (Bi | Deep | CNN-) LSTM, ConvLSTM, LSTM + Attention. The experiments were based on a large publicly available EEG dataset of school-age children conducting the “Guess the number”-experiment. Several hyperparameter choices were experimentally investigated resulting in 30 different models included in the comparison. Ten models with good performance on the validation data set were also automatically optimized with Grid Search. Monte Carlo Cross Validation was used to test all models on test data with 30 iterations. The best performing model was the Deep LSTM with an accuracy of 77.1% followed by the baseline (CNN) 76.1%. The significance test using a 5x2 cross validation paired t-test demonstrated that no model was significantly better than the baseline. We recommend experimenting with other architectures such as Inception, ResNet and Graph Convolutional Network.
Direitos humanos das crianças e adolescentes sob o prisma da fraternidade e do cuidado
Authors: Grubba Leilane Serratine , Pellenz Mayara
Published: May 2022

A pesquisa objetiva discutir os valores da fraternidade e do cuidado sob o prisma jurídico e sociológico, principalmente sob o viés dos direitos humanos, para pensá-los como vetores para os Direitos das Crianças e adolescentes. Tem como recorte principal o pensamento produzido na América Latina e Brasil sobre a temática. Problematiza a pós-modernidade sob o viés sociológico dos direitos humanos e direitos das crianças e adolescentes. Utilizou-se de pesquisa bibliográfica, com análise qualitativa, e método dedutivo.
Analisis Hubungan Pengetahuan Dan Sikap Ibu Terhadap Pengelolaan Demam Pada Anak Balita Di Perum Puri Bukit Depok
Authors: Safitri Melia Nur , Argarini Diah , Widiastuti Susanti
Published: May 2022

ABSTRACT Fever is a condition in which the body responds to an increase in body temperature above the average normal temperature. The increase in body temperature occurs due to a vasoconstriction mechanism that is not aligned between internal and external temperatures. Body heat will appear if the impulse reaches the thermostat receptor in the central nervous system (CNS). Fever appears as a common symptom of the first mechanism of infection in the body. This can lead to a health crisis. The type of research used is quantitative method, this research is descriptive analytic by using a cross sectional approach. Sampling using a measuring instrument using a lift and a questionnaire measuring instrument and the data obtained will be analyzed univariately and bivariately using the chi square test. The results of this study indicate that the value is 0.000 0.05, which means that there is a relationship between mother's knowledge and the management of fever in children under five in Puri Bukit Depok housing estate, and the value is 0.000 0.05, meaning that there is a Relationship between mother's attitude towards fever management in under-five children in Puri Bukit Depok housing estate. There is a relationship between knowledge and attitudes of mothers towards the management of fever in children under five. Keywords: Fever Management, Knowledge, Attitude ABSTRAK Demam merupakan keadaan di mana tubuh memberikan respons peningkatan suhu tubuh diatas rata - rata suhu normal. Peningkatan suhu tubuh terjadi akibat adanya mekanisme vasokonstriksi yang tidak selaras antara suhu internal dan eksternal. Panas tubuh akan muncul jika impuls sampai ke reseptor termostat yang ada di dalam sistem saraf pusat (SSP). Demam muncul sebagai gejala umum dari mekanisme pertama terhadap infeksi pada tubuh. Hal tersebut dapat menyebabkan adanya krisis kesehatan. Jenis penelitian yang digunakan adalah metode kuantitatif, penelitian ini bersifat deskriptif analitik dengan menggunakan pendekatan cross sectional. Pengambilan sampel ini Dengan alat ukur menggunakan angkat dan alat ukur kuesioner dan data yang diperoleh akan di analisis secara univariat dan bivariat menggunakan uji chi square. Hasil penelitian ini menunjukkan bahwa r-value sebesar 0,000 ≤ 0,05, yang berarti adanya hubungan Hubungan pengetahuan ibu terhadap pengelolaan demam pada anak balita di perumahan puri bukit depok, dan nilai r value sebesar, 0,000 ≤ 0,05, berarti  adanya Hubungan sikap ibu terhadap pengelolaan demam pada anak balita di perumahan puri bukit depok. Terdapat hubungan pengetahuan dan sikap ibu terhadap pengelolaan demam pada anak balita. Kata kunci : Manajemen Demam, Pengetahuan, Sikap
Decision-making method for multi-ship collision avoidance based on improved extensive game model
Authors: Tu Yijing , Xiong Yong , Mou Junmin
Published: May 2022

In the case of multi-ship encounter situations, most collision accidents are caused by not having timely and coordinated collision avoidance behaviors. Therefore, it is necessary to introduce an automatic collision avoidance method in the process of collision avoidance to quickly generate multi-ship collision avoidance decisions based on encounter situations. Multi-ship collision avoidance is a dynamic game used among officers under situations of multi-ship encounters. Considering the defects of the classic extensive game method in ship collision avoidance decision-making, the improved extensive game method is proposed, based on the velocity obstacle method. The feasible region of velocity is taken as the optional action range of the game to narrow down the action set. The simulation results show that the proposed method can effectively transform the multi-ship collision avoidance game problem into a 2-ship collision avoidance game problem, reduce the optional action range of a collision avoidance action set, and improve decision-making speed, while ensuring the safety of multi-ship navigation.
THE CORPUS PROFILE OF A WORD AS A TRANSLATOR’S PER- SPECTIVE TOOL
Authors:   Hryhorii Skovoroda University in Pereiaslav Pereiaslav, Ukraine, MIZIN K.I.
Published: May 2022

The article presents a corpus-based method developed to specify the cross-linguistic equivalence of words based on the analysis of their corpus profiles. The method was tested on the example of the names of emotional concepts (ECs) which form «an anger petal» of R. Plutchik’s wheel of emotions in its English, German and Ukrainian language versions. The first stage of the investigation involved the comparative analysis of definitions of the lexemes mostly used by translators to convey the English «anger petal» in German and Ukrainian. It allowed eliminating the cases of false equivalence. At the second stage the results of the previous one were verified by the use of language corpora data. For this purpose, language corpora data were involved to define the common and distinctive senses of 10 most relevant emotional proximates of each analysed EC as to their relevance and intensity indicators. These indicators are used as criteria of cross-cultural equivalence of anger-like ECs, so the results of proximate analysis formed quite an objective basis for featuring such cross-cultural equivalence of the compared concepts: Anglo-Saxon «annoyance» ↔ German «Ärger» ↔ Ukrainian «роздратування»; A-S. «anger» ↔ Germ. «Wut» ↔ Ukr. «гнів»; A-S. «rage» ↔ Germ. «Zorn» ↔ Ukr. «лють». Extrapolated on the language level, this analysis made it possible to detect current semantic shades of the names of these ECs that helped to define the more precise German and Ukrainian equivalents for the Anglo-Saxon lexemes annoyance, anger and rage. The development of the second stage of the method testified to the fact that forming profiles of words in language corpora and the comparative analysis of their frequency do not require translators’ special efforts, so this approach to specifying the equivalence of language units can be considered as a perspective one in translation studies.
«И ПОБѢДИ РАДИМИЧѢ ВОЛЪЧИИ ХВОСТЪ»: SEMANTIC-MOTIVATIONAL RECONSTRUCTION OF AN INFORMALANTHROPONYM. 1
Authors:   National Aviation University, Kyiv, Ukraine, MEZHZHERINA H. V
Published: May 2022

The article is devoted to reconstruction of reference connections, denotative and connotative components of content, functional purpose, motivational basis of the anthroponym Волчии Хвостъ — unofficial name of the voivode of grand dukes Volodymyr St. and Svyatopolk Okayanny. The anthroponym is available in chronicle articles *984 and *1016. It is proved that the internal form of the name Волчии Хвостъ contains an allusion to the Svyatopolk, semes of moral and ethical, social, religious nature. The comparison of the chronicle articles content, chronology of historical events, images of the voivode in miniatures of the Radziwill chronicle, made it possible to reconstruct the approximate age of the voivode, some features of his appearance, the functional purpose of the artifacts that were linked with him, the motives of his actions and features of the psychological portrait. Thoughts regarding the time of the military campaign against the Radimichi, the participation of the Wolf’s Tail in the battle of Lubech, the fate of the voivode after *1016, his relationship with Yaroslav the Wise and Svyatopolk, reason for getting the unofficial name Волчии Хвостъ were expressed. The widespread opinion about purely anecdotal nature of the article *984 in «The Tale of Bygone Years» with a funny character Волчии Хвостъ is refuted. In architectonics of the stories about the subjugation of the Radimichi comic connotation comes to the fore closing from the uninitiated reader deep semantic layers. The article *984 expresses the chronicler’s attitude to the voivode not before, but after the voivode went to serve Svyatopolk. The chronicle assessment of the voivode’s actions on the eve of the battle of Lubech is analyzed. Most likely that the original version of the chronicle articles *984 і *1016 contained the informal name of the voivode, that after coming to power Yaroslav was removed and replaced by an unofficial name Волчии Хвостъ. Assumptions about the hypothetical presence of the name Волчии Хвостъ in the Synodal List of the Novgorod First Chronicle are made. The reception of the chronicle image of the voivode in the chronicle legends of the XVI century, literary works of the XIX century, etc. was analyzed. The assumption that found by M. I. Kostomarov song «Pishchano, Pishchanino…» has been written in the village near the battlefield with Radimychi, where the cult of the wolf has prevailed since archaic times, is substantiated.
THREAT AS AN OBJECT OF FORENSIC LINGUISTICS
Authors:   O. O. Potebnia Institute of linguistics of the National Academy of Sciences of Ukraine, AZHNIUK L. V.
Published: May 2022

The article discusses methodological approaches to forensic linguistic research concerning the cases based on the juridical assessment of speech deeds. As an object of forensic linguistics the speech act lies at the interface between the conceptual spheres of linguistics and jurisprudence. When the speech deeds whose content is defined by the law (threats, blackmail, appeal, solicitation) are performed under certain communicative circumstances they could be qualified as criminal offences. Juridical assessment of such speech deeds must pursue the lines of reasoning lying beyond jurisprudence and pertaining to linguistic pragmatics. The principle of linguistic parameterization of the language crime is essential for resolution of the wide range of tasks confronting forensic linguistics investigation. Parameterization stipulates for the comprehensive list of indispensible communicative features as its linguopragmatic elements. The combination of the sum-total of linguopragmatic elements of the speech deed in the relevant communicative context is tantamount to its perpetration. Through the example of the speech act «threat» methodological approaches are described and their theoretical feasibility is discussed. The differences between the casual understanding of «threat», on the one hand, and its linguopragmatic qualification, on the other hand, are examined. Among the distinctive features of the speech act «threat» we distinguish those conditioned by the essential characteristics of the respective speech genre and those conditioned by the juridical qualification of the elements of the linguistic offence. The cases of parameterization of the linguistic crime and of the introspection of the elements of the crime in forensic linguistics are exemplified.
Pengaruh Edukasi dengan Media Sosial Instagram dan YouTube terhadap Pengetahuan Gizi Seimbang
Authors: Rinarto Dinda Latifa , Ilmi Ibnu Malkan Bakhrul , Imrar Iin Fatmawati
Published: May 2022

Edukasi dengan media sosial Instagram dan YouTube merupakan cara preventif yang menarik bagi remaja, terutama dalam meningkatkan pengetahuan gizi. Peningkatan pengetahuan tentang gizi dapat mempengaruhi sikap dan perilaku dalam pemilihan bahan makanan yang bergizi seimbang, sehingga secara tidak langsung akan berpengaruh pada status gizi remaja. Penelitian ini dilakukan untuk mengetahui pengaruh media sosial Instagram dan YouTube terhadap pengetahuan gizi seimbang pada siswa SMA Negeri 1 Cikarang Utara. Jenis penelitian ini merupakan Quasi-experiment, rancangan one group pretest-posttest design. Jumlah responden sebanyak 52 siswa kelas 11 (26 siswa kelompok Instagram; 26 siswa kelompok YouTube) dan diberi intervensi melalui postingan Instagram dan video YouTube masing-masing sebanyak dua kali dalam satu minggu dan diulang selama empat minggu. Hasil penelitian ini menunjukkan bahwa terdapat perbedaan pengaruh pemberian edukasi gizi dengan media sosial Instagram terhadap pengetahuan (Pv=0,000) dan ada pengaruh pemberian edukasi gizi dengan media sosial YouTube terhadap pengetahuan (Pv=0,010). Kemudian, pemberian edukasi gizi dengan Instagram dapat berpengaruh terhadap pengetahuan sebesar (41,9%) dan dengan YouTube sebesar (24,3%).
Epidemiologi Kejadian Tuberkulosis-Diabetes Mellitus (TB-DM) di Kota Kediri
Authors: Abbas Akhmadi
Published: May 2022

Tuberkulosis dan diabetes melitus merupakan masalah kesehatan masyarakat di dunia. Penelitian ini bertujuan untuk menganalisis epidemiologi Tuberkulosis-Diabetes Mellitus (TB-DM) di Kota Kediri. Metode penelitian observasional deskriptif dengan desain laporan kasus. Populasi sebanyak 862 data pasien TB paru periode 2016-2018 dari seluruh Puskesmas di Kota Kediri dengan metode total sampling, sehingga seluruh data menjadi unit analisis (sample) dalam penelitian ini. Hasil penelitian menunjukkan bahwa kejadian TB-DM adalah 13% pada pasien TB paru baru di Kediri. Angka kejadian TB-DM sebagian besar laki-laki (64%), sebagian besar kelompok usia lanjut (88,39%) dan sebagian besar (50%) berada di wilayah kerja Puskesmas Balowerti. Proporsi kejadian TB-DM pada pasien baru TB paru cenderung meningkat selama periode 2016-2018 yaitu sebesar 13% (112 kasus). Petugas perlu melakukan skrining pasien TB secara rutin untuk mendeteksi kejadian TB-DM sedini mungkin. Pasien diharapkan dapat mengontrol kadar gula untuk menurunkan risiko TB-DM.
Report of two species of spiders (Araneae: Linyphiidae: Erigoninae) from Western Ghats, Kerala, India
Authors: Domichan Anusmitha , Jose K. Sunil
Published: May 2022

Two erigonine species Oedothorax apicatus Blackwall, 1850 and Nasoona orissa Tanasevitch, 2018 were reported from Central Kerala, India; N. orissa endemic to India, is reported after its description in 2018 and O. apicatus reported for the first time from India. The study contributed addition of two species to spider diversity of Kerala.
Sosyal Bilgiler Öğretmenlerinin COVID-19 Döneminde Gerçekleştirilen Acil Uzaktan Eğitim Sürecine İlişkin Deneyimleri ve Yeni Normale Dair Öngörüleri
Authors: Elçi İrem , Tünkler Vural
Published: May 2022

Bu çalışmanın amacı, sosyal bilgiler öğretmenlerinin COVID-19 döneminde gerçekleştirdikleri acil uzaktan eğitime ilişkin deneyimlerini ve yeni normale dair öngörülerini incelemektir. Çalışma nitel araştırma yaklaşımlarından fenomenoloji deseni kapsamında yürütülmüştür. Veriler yarı yapılandırılmış görüşme formu kullanılarak yedi sosyal bilgiler öğretmeninden elde edilmiştir. Çalışma sonucunda, öğretmenlerin acil uzaktan eğitim sürecinde öğretim faaliyetlerinin çoğunu telefon ve bilgisayar teknolojilerini kullanarak gerçekleştirdikleri belirlenmiştir. Uzaktan eğitimde canlı derslere öğrenci katılımının oldukça düşük olduğu, öğrenci öğrenmeleri etkili şekilde değerlendirilmediğinden değerlendirmenin uzaktan eğitimin bir parçası olarak görülmediği ortaya çıkmıştır. Öğretmenler, yeni normalde öğrencilerin bazı öğrenme alanlarında bilişsel giriş davranışlarının eksik olacağını, çevrimiçi öğretim faaliyetlerine katılma konusunda istekli/isteksiz olacaklarını ifade etmişlerdir. Ayrıca çevrimiçi uygulamalardan Zoom ve EBA’yı kullanacaklarını, öğretimi destekleme niyetiyle harmanlanmış öğrenme yaklaşımından yararlanmayı düşündüklerini dile getirmişlerdir
Comparative Analysis of ABM/P-15, Bone Morphogenic Protein and Demineralized Bone Matrix after Instrumented Lumbar Interbody Fusion
Authors: Sathe Ashwin , Lee Sang-Ho , Kim Shin-Jae , Eun Sang Soo , Choi Yong Soo , Lee Shih-min , Seuk Ju-Wan , Lee Yoon Sun , Shin Sang-Ha , Bae Junseok
Published: May 2022

Objective : ABM/P-15 (anorganic bone matrix/15-amino acid peptide fragment) is a commercially available synthetically manufactured P-15 collagen peptide fragment, that is adsorbed on ABM. This study was done to investigate the efficacy of ABM/ P-15 in achieving fusion in the lumbar spine and comparing it with that of recombinant bone morphogenic protein-2 (rhBMP-2) and demineralized bone matrix (DBM).Methods : A retrospective observational study of prospectively collected data of 140 patients who underwent lumbar spinal fusion surgeries in a single specialty spine hospital between 2016 and 2020, with a minimum 6-month follow-up was conducted. Based on the material used for the augmentation of the bone graft at the fusion site, the patients were divided into three categories namely ABM/P-15, rhBMP-2, and DBM group.Results : ABM/P-15, rhBMP-2, and DBM were used in 46, 44, and 50 patients, respectively. Patient characteristics like age, gender, bone mineral density, smoking history, and presence of diabetes mellitus were comparable amongst the three groups. Average follow-up was 16.0±5.2, 17.9±9.8, and 26.2±14.9 months, respectively in ABM/P-15, rhBMP-2, and DBM groups. The fusion was achieved in 97.9%, 93.2%, and 98% patients while the average time-to-union was 4.05±2.01, 10±4.28, and 9.44±3.49 months (p<0.001), respectively for ABM/P-15, rhBMP-2, and DBM groups. The average pre-operative Visual analogue scale score was 6.93±2.42, 7.14±1.97, 7.01±2.14 (p=0.900) for ABM/P-15, rhBMP-2 and DBM groups, respectively, which reduced to 1.02±0.80, 1.21±0.96, and 0.54±0.70 (p=0.112), respectively at the last follow up. Pre-operative Oswestry disability index scores were 52.7±18.02, 55.4±16.8, and 53.56±19.6 (p=0.751) in ABM/P-15, rhBMP-2, and DBM groups, which post-operatively reduced to 33.77±15.52, 39.42±16.47, and 38.3±15.89 (p=0.412) and further to 15.74±8.3, 17.41±10.45, and 16.76±9.81 (p=0.603), respectively at the last follow-up.Conclusion : ABM/P-15 appears to achieve union significantly earlier than rhBMP-2 and DBM in lumbar spinal fusion cases while maintaining a comparable clinical and complication profile.
Mild Traumatic Brain Injury and Subsequent Acute Pulmonary Inflammatory Response
Authors: Lim Seung Hyuk , Jung Harry , Youn Dong Hyuk , Kim Tae Yeon , Han Sung Woo , Kim Bong Jun , Lee Jae Jun , Jeon Jin Pyeong
Published: May 2022

Objective : The influence of moderate-to-severe traumatic brain injury (TBI) on acute pulmonary injury is well established, but the association between acute pulmonary injury and mild TBI has not been well studied. Here, we evaluated the histological changes and fluctuations in inflammatory markers in the lungs to determine whether an acute pulmonary inflammatory response occurred after mild TBI.Methods : Mouse models of mild TBI (n=24) were induced via open-head injuries using a stereotaxic impactor. The brain and lungs were examined 6, 24, and 72 hours after injury and compared to sham-operated controls (n=24). Fluoro-Jade B staining and Astra blue and hematoxylin staining were performed to assess cerebral neuronal degeneration and pulmonary histological architecture. Quantitative real-time polymerase chain reaction analysis was done to measure inflammatory cytokines.Results : Increased neuronal degeneration and the mRNA expression of interleukin (IL)-6, tumor necrosis factor (TNF)-α, IL-10, and transforming growth factor (TGF)-β were observed after mild TBI. The IL-6, TNF-α, and TGF-β levels in mice with mild TBI were significantly different compared to those of sham-operated mice 24 hours after injury, and this was more pronounced at 72 hours. Mild TBI induced acute pulmonary interstitial edema with cell infiltration and alveolar morphological changes. In particular, a significant infiltration of mast cells was observed. Among the inflammatory cytokines, TNF-α was significantly increased in the lungs at 6 hours, but there was no significant difference 24 and 72 hours after injury.Conclusion : Mild TBI induced acute pulmonary interstitial inflammation and alveolar structural changes, which are likely to worsen the patient’s prognosis.
The Effectiveness of Calistenic Exercise Training in Adolescents Receiving Online Education During COVID-19 Pandemic
Authors: Altuntas Kemal , Özünlü Pekyavaş Nihan , Ümit Yemişçi Oya , Tezeren Halime Ceren
Published: May 2022

Background: During the Covid-19 pandemic, it was observed that the level of physical activity decreased with social isolation. Our aim in this study was to examine the effectiveness of calisthenic exercise training on physical activity, quality of life, sleep, anxiety and depression levels in adolescents. Methods: Thirty-eight adolescent students who had been studying full-time online education during the pandemic were randomized into two groups; calisthenic exercise group (n=19, mean age= 12,84±0,37, BMI= 21,23± 3,66) and control group (n=19, mean age=13,05±0,84,BMI=21,27±2,27). Calisthenic exercise group received calisthenic exercise training for 8 weeks through the videoconferans and control group didnt receive any exercise treatment. The levels of physical activity were measured by the short form of the International Physical Activity Questionnaire (IPAQ). The Pittsburgh Sleep Quality Index (PSQI) was used to assess sleep quality. Quality of life was assessed using Pediatric Quality of Life Questionnaire Short Form (PedsQL-SF). The Beck Anxiety Scale (BAS) and Reynolds Adolescent Depression Scale (RADS) were used to determine the level of anxiety. Results: There was a statistically significant improvement in physical activity levels (IPAQ p=0.049), anxiety depression (BAS and RADS P=0.007), quality of life (PedsQL-SFp= 0.012) and sleep (PSQI p= 0.045) in the exercise group (p<0.05). No significant improvement was observed in any measurement parameters in the control group (p>0.05). Conclusions: The results of this sudy suggest that calisthenic exercise training at home is effective in physical activity, quality of life, sleep, anxiety and depression levels in adolescents despite social isolation during the Covid-19 pandemic.
Identification of Road Crash Severity Ranking by Integrating the Multi-Criteria Decision-Making Approach
Authors: Trivedi Priyank , Shah Jiten
Published: May 2022

This research aims to provide a novel approach for analysing road crash severity ranking by integrating all injury classified crash types. The road crash data of all Indian states (i.e., Andhrapradesh, Arunachal Pradesh, Bihar, etc.) for 2019 were incorporated to analyse severity rankings by using multi-criteria decision-making (MCDM) methods. Two of these methods – the Analytical Hierarchy Process (AHP) and Technique for Order Performance by Similarity to an Ideal Solution (TOPSIS) – were applied. The application of MCDM methods easily incorporated the injury classified crash data and provided clear rankings. Further, the correlation analysis of rankings provided by both MCDM methods proved the validity of the proposed research. Therefore, this approach is considered to have great potential to reform conventional severity ranking practices.
O Erro no Processo de Ensino-Aprendizagem: uma análise sobre a visão de professores de Carandaí (MG) e região
Authors: Gonçalves Gusthavo Henrique de Almeida , Kistemann Jr. Marco Aurélio
Published: May 2022

O presente trabalho de conclusão de curso busca estudar um pouco sobre o Erro e, mais especificamente, o Erro quando se trata de avaliações e Matemática. Para tal estudo, utilizamos de uma pesquisa de campo, por meio de um questionário online, de cunho qualitativo, em alguns professores de Carandaí e região. Contamos com a resposta de oito professores, estando eles atuando em rede municipal, estadual e federal. A partir das respostas destes professores e, um estudo prévio de uma bibliografia composta por trabalhos e estudos na área em questão, tentamos compreender e analisar os dados coletados, de forma crítica.
Fixed-Wing Motorized Aircraft Accidents: Analysis of Injury Severity and Concomitant Factors (2000–2019)
Authors: Liebold Felix , Hippler Catherina , Schmitz Jan , Yücetepe Sirin , Rothschild Markus , Hinkelbein Jochen
Published: May 2022

BACKGROUND: There is a paucity of research on general aviation accidents in Germany. The authorities investigate only a fraction of all national accidents. The current study analyzes existing accident reports and aims to identify injury severity in regard to concomitant risk factors.

METHODS: Data of flight accidents was analyzed for aircraft of <5700 kg maximum takeoff weight (MTOW) over a 20-yr period. Besides descriptive data, concomitant factors (type and category of aircraft, date, occupants and outcome, flight phase, etc.) were analyzed. Statistical analysis was performed using the Chi-squared test.

RESULTS: The authorities list 1595 aircraft accidents between 2000 and 2019, but only 17.9% of these were analyzed in detail. Accidents of aircraft of <2000 kg MTOW were over-represented between May and September and between Friday and Sunday. The fraction of fatal accidents was highest during cruise. During landing, significantly more mishaps of larger aircraft occurred. The number of seriously injured or deceased occupants was significantly higher for accidents involving private pilots. An occupancy rate of more than three persons on board correlated significantly with fewer number of deaths.

CONCLUSIONS: The annual count of aircraft accidents has almost halved during the previous 20 yr. Unfortunately, only a small number of mishaps were further investigated by authorities, which leads to a lack of evaluable data needed for in-depth investigations. The accumulation of larger aircraft mishaps in winter and the superior outcome of professional pilots in terms of safety, as well as the fewer number of mishaps in larger aircraft, should be further investigated.

Liebold F, Hippler C, Schmitz J, Yücetepe S, Rothschild M, Hinkelbein J. Fixed-wing motorized aircraft accidents: analysis of injury severity and concomitant factors (2000–2019). Aerosp Med Hum Perform. 2022; 93(5):442–449.
Obstructive Sleep Apnea Among Army Aircrew
Authors: Goldie Claire , Stork Benjamin , Bernhardt Kyle , Gaydos Steven J. , Kelley Amanda M.
Published: May 2022

INTRODUCTION: Obstructive sleep apnea (OSA) is a condition characterized by disrupted sleep and excessive daytime fatigue. Associated cognitive and psychomotor decrements pose a threat to aviators’ performance and flight safety. Additionally, the longer term health effects associated with the disease can jeopardize an aviator’s career and negatively impact operational outputs. This study reviews OSA prevalence, related comorbid conditions in Army aviators, and analyzes the aeromedical dispositions of affected individuals.

METHODS: The U.S. Army Aeromedical Electronic Resource Office (AERO) database was interrogated for all cases of OSA from June 2005 through June 2015 using ICD-9 code 327.23. Prevalence rates for OSA and other comorbid conditions were then calculated using the total number of aviators in the AERO database.

RESULTS: A total of 663 unique instances of OSA were found among the aviator population (N = 24,568), giving a point prevalence of 2.69%. Four cases affected women. Mean age of initial presentation was 42.62 yr and mean Body Mass Index was 28.69. The top five most prevalent comorbid conditions were hypertension, lumbago, degeneration of a lumbar or lumbosacral intervertebral disc, PTSD, and testicular hypofunction.

DISCUSSION: Prevalence of OSA among aviators is lower than the general population but is not uncommon. A positive diagnosis requires a waiver or can result in suspension if not managed effectively, potentially leading to a reduction in aviator numbers. Aggressive health promotion and robust medical surveillance and aeromedical disposition management by the aeromedical community is essential to reduce OSA numbers, maintain aviator health, and maximize flight safety.

Goldie C, Stork B, Bernhardt K, Gaydos SJ, Kelley AM. Obstructive sleep apnea among army aircrew. Aerosp Med Hum Perform. 2022; 93(5):415–420.
Relationship Between the Rate of Photochemical Metal-Assisted Etching of GaN Layers and Multifractal Parameters of Their Surface Structure
Authors: Mokhov D. V. , Berezovskaya T. N. , Mizerov A. M. , Shubina K. Yu. , Kolmakova A. A. , Kolmakov A. G. , Kheifetz M. L.
Published: May 2022

The results of a study of liquid photochemical metal-assisted etching of a series of samples of n-type Ga-polar GaN layers grown by molecular-beam epitaxy with nitrogen plasma activation are presented. Under the chosen conditions of the etching process, it is shown that the etching rate depends mainly on the structural properties of the GaN layers, which manifest themselves in the surface morphology, which can be quantitatively characterized by the multifractal parameters Δq (the degree of ordering and symmetry breaking of the structure under study) and Dq (the Rényi dimension, which depends on the thermodynamic formation conditions). A correlation between the values of the multifractal parameters Δq and Dq of the surface structure and the etching rate of Ga-polar GaN layers is established.
Diabetic Ketoacidosis Precipitated by COVID-19: A Case Report
Authors: Paramanathan Prathayini , Abbas Muhammad
Published: May 2022

Introduction: Diabetic emergencies such as diabetic ketoacidosis (DKA) are life-threatening complications, often precipitated by infections or illnesses such as COVID-19.

Case presentation: A 55-year-old African American female presented to their primary care physician, complaining of fatigue, dehydration, decreased appetite, hypersomnia, and sudden weight loss, and a past medical history of Type 2 diabetes. They had a glucose level of >15 mmol/L and ketone level of >16 mmol/L; they were immediately sent to the emergency department for assessment of DKA. There, the patient tested positive for COVID-19. They had a glucose level of 361 mg/dL, a pH of 7.11, a bicarbonate level of 10 mEq/L, a sodium level of 125 mEq/L, a potassium level of 3.9 mEq/L, a chloride level of 95 mEq/L, an anion gap of 20, and a positive ketone level. Over the next few days, the patient’s condition got worse; their chest CT scan showed ground-glass opacities with consolidations in the middle and inferior lobes of the lungs bilaterally, along with interlobular septal thickening, which are consistent with an atypical infection, respiratory distress, and pneumonia. The patient was on intravenous fluids, insulin therapy and empirical antibiotics for the next few weeks, and eventually recovered.

Discussion: Factors precipitating DKA in patients with diabetes in the setting of COVID-19are: the increased secretions of stress hormones that counter the effects of insulin and increase blood glucose levels, and the ways in which severe acute respiratory syndrome coronavirus 2 interacts with human cells, leading to pancreatic islet cell damage.

Conclusion: Diabetes and COVID-19 intensify each other’s complications in patients diagnosed with both.
Investigation on the performance improvement of an outer ring application on triple swirler combustor
Authors:   AECC Shenyang Engine Research Institute, Mo Da , Zhang Junfeng ,   AECC Shenyang Engine Research Institute, Liu Yixiong ,   AECC Shenyang Engine Research Institute, Cheng Ming ,   AECC Shenyang Engine Research Institute, Zhang Chengkai ,   AECC Shenyang Engine Research Institute, Wan Bin ,   AECC Shenyang Engine Research Institute
Published: May 2022

Triple swirler combustor has the characteristic of high temperature rise and wide range of operating stability, which has been well-accepted in fighters with high thrust-weight ratio. This paper proposed an outer ring implemented in the dome of the triple swirler combustor. The aim is to explore the combustor performance improvement of this structure. Numerical simulation was performed by Fluent with realizable k- ε turbulence model and PDF combustion model to investigate the flow characteristic and combustion performance of the outer ring case. The obtained results were compared with the baseline combustor, including flow path, velocity, combustor efficiency, temperature distribution, and OTDF. The outer ring application has a positive effect on expanding the recirculation zone size and maintaining flame stability. Besides, the refined fuel droplets and reinforced atomization contributed to the shorter flame and combustion acceleration. Afterwards, a thorough description of the experimental devices and methods were presented. The tested smoke number and temperature distribution of the two combustors were compared to uncover the benefits of using the outer ring. The smoke number has effectively dropped to 15 with noticeable betterment for the fighter stealth performance. Additionally, the hot spot of the outlet has moved from the root to the desired region and would be beneficial for blade life extension. Moreover, simulations results were consistent with the experimental results and the combustion efficiency for the outer ring case reached 99.93%, 0.2% higher than the baseline. It proves that the designed outer ring shows enormous potential in improving the triple swirler combustor performance.
Singular Spectrum Analysis Of Transient Heat Release In A Premixed Swirl Combustor
Authors:   Nanjing Institute of Future Energy System, Advanced Gas Turbine Laboratory Institute of Engineering Thermophysics, Chinese Academy of Sciences CAS, Yang Yang , Yu Zhijian ,   Advanced Gas Turbine Laboratory Institute of Engineering Thermophysics, Chinese Academy of Sciences CAS University of Chinese Academy of Sciences
Published: May 2022

Lean premixed swirling flame is normally accompanied with a thermoacoustic issue. Analysis of the heat release rate time series generated by large eddy simulation is an effective way to determine the flame dynamics during combustor design. However, due to the high cost of large eddy simulation, the signal is always short-duration. It is difficult to tell if the flames would eventually quench from such duration signals. Therefore, there should be one post-processing method, which can analyze such non-stationary, short, and noisy time series and extract useful flame dynamic information. In this paper, singular spectrum analysis was performed to do such job. Flame transfer path response is defined to identify the flame response of each singular spectrum mode. The mode shapes extracted from dynamic mode decomposition were compared with transfer path response results. Results indicate that traditional flame transfer functions show higher gain with a wide frequency range and critical eigenfrequencies are masked. Via singular spectrum analysis, the reconstructed series can track the original heat release time series. Distinct evolution trends and frequency responses can be found in those modes. The transfer path response results of single or grouped singular spectrum modes may reflect the heat release rate response to excitation more accurately than with traditional analysis. The frequency bands of singular spectrum modes correspond to those of dynamic mode decomposition. Compared with decomposed modes, frequency responses may be caused by shear layer instabilities and flame motions.
Effects of Inlet Air Temperature and Steam Addition on the Realization of MILD Combustion for Humid Air Turbine
Authors:   Institute of Engineering Thermophysics, Chinese Academy of Science University of Chinese Academy of Science, Zhu Ziru , Xiong Yan ,   Institute of Engineering Thermophysics, Chinese Academy of Science University of Chinese Academy of Science, Zhang Zhedian ,   Institute of Engineering Thermophysics, Chinese Academy of Science University of Chinese Academy of Science
Published: May 2022

MILD (Moderate or Intense Low-oxygen Dilution) combustion is a promising technology with low emissions and low noise. In this paper, a simplified chemical reactor network (CRN) based on the MILD combustion of methane was established to investigate the effects of inlet air temperature and steam addition on the realization of MILD combustion for humid air turbine (HAT). The results show that for the three typical conditions of the HAT cycle, the most suitable main combustion zone temperature is about 1700 K, which is most conducive to the realization of MILD combustion. The influence of steam dilution on the threshold recirculation ratio can be neglected, but it will increase the ignition delay time until reaching the critical value of steam content, which is beneficial to the complete mixing of flue gas and unburnt reactants. When the inlet air temperature increases from 381 K to 881 K, the threshold recirculation ratio for MILD combustion decreases by 70%. The influence of the inlet air temperature on the threshold recirculation ratio for MILD combustion is dominant compared to the steam content. An atmospheric experiment of MILD combustor with parallel-jet arrangement was performed to study the effect of steam content on the realization of MILD combustion. For the adiabatic flame temperature of 1650- 1900 K, the NOx emissions are below 3 ppm (at 15% O2, dry) when the steam content varies from 0 to 0.2 kg/kg. For the steam content of 0.2 kg/kg, the reaction is widely distributed. The ultra-low emissions and distributed reaction zone shows the characteristics of MILD combustion.
Mode Shape and Eigenfrequency Analysis based on Helmholtz Equation for Thermo-acoustic Combustion Instability
Authors:   Xi'an, China, Wu Juan , Xiao Yinli ,   Northwestern Polytechnical University, Lu Yipin ,   Northwestern Polytechnical University, Chen Zhuoqiang ,   Northwestern Polytechnical University, Sen Wang ,   Xi'an, China
Published: May 2022

The thermo-acoustic combustion instability is a key problem in combustion that stems from the interaction between the acoustic wave and fluctuations of heat release. In this paper, the finite element software COMSOL is used to identify the frequencies and the growth rates at which thermo-acoustic instabilities are excited. The Helmholtz equation combined with the classical n-τ flame model is solved to capture the thermo-acoustic features in simple geometry combustors with no mean flow. The accuracy of this method is demonstrated by studying the thermo-acoustic in various verification cases. The effect of the flame holder on acoustic pressure field is studied. The results show that the first transverse mode is concentrated around the flame holder. The mode frequencies will change as the temperature increases in the downstream of flame holder. In addition, when the upstream temperature of the flame holder is different from downstream, the longitudinal mode will transition to transverse mode. Furthermore, combustion instability in the combustion chamber of the model rocket is studied by using this method and compared with the experimental data. The unstable mode frequencies are 1451Hz, 1184.9Hz, 1704.7Hz and 1821.5Hz, respectively. This work demonstrates that the method can be applied to predict the thermo-acoustic behavior.
Axial Slot Casing Treatment To Improve The Stall Margin Under Circumferential Total Pressure Distortion On An Axial Flow Compressor
Authors:   1Advanced Gas Turbine Laboratory, Institute of Engineering Thermophysics, Chinese Academy of Sciences, 2University of Chinese Academy of Sciences, Li YiHan , Li Jichao ,   1Advanced Gas Turbine Laboratory, Institute of Engineering Thermophysics, Chinese Academy of Sciences, 2University of Chinese Academy of Sciences, Du* Juan ,   1Advanced Gas Turbine Laboratory, Institute of Engineering Thermophysics, Chinese Academy of Sciences, 2University of Chinese Academy of Sciences, Zhang Wenqiang ,   University of Nottingham, Zhang Hongwu ,   1Advanced Gas Turbine Laboratory, Institute of Engineering Thermophysics, Chinese Academy of Sciences, 2University of Chinese Academy of Sciences
Published: May 2022

As a typical stability enhancement method, the axial slot casing treatment (ASCT) has been verified to extend the stall margin under uniform inflow condition. In order to further investigate its stability-enhancing capability under distorted inlet conditions, a series of experimental studies were carried out on a low-speed axial flow compressor. An ASCT structure which can improve the stall margin by 38.75% under uniform inflow was studied. Three types of circumferential total pressure distortion intensities, namely, 0.90%, 4.12%, and 24.75%, are selected to conduct the steady and unsteady measurements with and without ASCT. The results showed that the three distorted inflow have deteriorated the compressor stall margin by 7.87%, 9.19% and 39.08%, respectively. The ASCT can widen the compressor stall margin by 43.86%, 40.27%, and 22.83% under the three distorted inflow conditions, respectively. It demonstrates the strong anti-distortion capability of ASCT. The unsteady pressure signal measured on the casing wall showed that the ASCT could significantly reduce the circumferential propagation speed of stall precursors under all inflow conditions. Under the circumferential total distorted inflows, the stall precursor first appears at the position where the rotor is about to rotate out of the distortion region, and then decays in the undistorted region. The power spectral density of the stall process showed that the ASCT can suppress the disturbance, whose frequency is near the rotating stall frequency band, thereby delaying the occurrence of rotating stall.