bluuebunny/crossref_metadata_2025_split huggingface dataset:
Towards Understanding Online Question & Answer Interactions and their effects on student performance in large-scale STEM classes
Authors: Smith IV David H , Hao Qiang , Dennen Vanessa , Tsikerdekis Michail , Barnes Bradly , Martin Lilu , Tresham Nathan 
Published: June 2020

AbstractOnline question & answer (Q & A) is a distinctive type of online interaction that is impactful on student learning. Prior studies on online interaction in large-scale classes mainly focused on online discussion and were conducted mainly in non-STEM fields. This research aims to quantify the effects of online Q & A interactions on student performance in the context of STEM education. 218 computer science students from a large university in the southeastern United States participated in this research. Data of four online Q & A activities was mined from the online Q & A forum for the course, including three student activities (asking questions, answering questions and viewing questions/answers) and one instructor activity (answering questions/providing clarifications). These activities were found to have different effects on student performance. Viewing questions/answers was found to have the greatest effect, while interaction with instructors showed minimum effects. This research fills the gap of lacking research in online Q & A, and the results of this research can inform the effective usage of online Q & A in large-scale STEM courses.
Novel strategies for complex foothills seismic imaging — Part 1: Mega-near-surface velocity estimation
Authors: Li Yalin , Zhu Xianhuai , Peng Gengxin , Liu Liansheng , Duan Wensheng 
Published: June 2020

Seismic imaging in foothills areas is challenging because of the complexity of the near-surface and subsurface structures. Single seismic surveys often are not adequate in a foothill-exploration area, and multiple phases with different acquisition designs within the same block are required over time to get desired sampling in space and azimuths for optimizing noise attenuation, velocity estimation, and migration. This is partly because of economic concerns, and it is partly because technology is progressing over time, creating the need for unified criteria in processing workflows and parameters at different blocks in a study area. Each block is defined as a function of not only location but also the acquisition and processing phase. An innovative idea for complex foothills seismic imaging is presented to solve a matrix of blocks and tasks. For each task, such as near-surface velocity estimation and static corrections, signal processing, prestack time migration, velocity-model building, and prestack depth migration, one or two best service companies are selected to work on all blocks. We have implemented streamlined processing efficiently so that Task-1 to Task-n progressed with good coordination. Application of this innovative approach to a mega-project containing 16 3D surveys covering more than [Formula: see text] in the Kelasu foothills, northwestern China, has demonstrated that this innovative approach is a current best practice in complex foothills imaging. To date, this is the largest foothills imaging project in the world. The case study in Kelasu successfully has delivered near-surface velocity models using first arrivals picked up to 3500 m offset for static corrections and 9000 m offset for prestack depth migration from topography. Most importantly, the present megaproject is a merge of several 3D surveys, with the merge performed in a coordinated, systematic fashion in contrast to most land megaprojects. The benefits of this approach and the strategies used in processing data from the various subsurveys are significant. The main achievement from the case study is that the depth images, after the application of the near-surface velocity model estimated from the megasurveys, are more continuous and geologically plausible, leading to more accurate seismic interpretation.
Qualitative Assessment of Unmet Information Management Needs of Informal Cancer Caregivers: Four Themes to Inform Oncology Practice
Authors: Crotty Bradley H. , Asan Onur , Holt Jeana , Tyszka Jeanne , Erickson Jeanne , Stolley Melinda , Pezzin Liliana E. , Nattinger Ann B. 
Published: June 2020

PURPOSE Family and friends often provide informal care for patients with cancer, coordinating care and supporting patients at home. Stress, depression, and burnout are increasingly recognized among these informal caregivers. Although past research has described a range of needs, including the need for information, details about unmet informational needs for caregivers have not been fully described. We sought to assess unmet information management needs for informal caregivers in the digital era. METHODS This was a qualitative research study with semistructured interviews and focus groups of nonprofessional caregivers for patients with cancer, facilitated using a discussion guide. Eligible caregivers supported patients in the community who were in treatment (chemotherapy or radiotherapy) or completed treatment within 3 years. Participants were recruited using informational flyers at an academic cancer center and in the local community of metropolitan Milwaukee, Wisconsin. Sessions were transcribed verbatim and analyzed inductively to identify themes. RESULTS Thirteen caregivers participated, the majority between 41 and 60 years of age: seven of 13, 53.8%, were predominantly women; 10 of 13 (76.9%) were educated, 10 of 13 (76.9%) had graduated from college; and of modest means, six of 13 (46.2%) had household incomes < $35,000. Four themes emerged: (1) the information overload paradox, where caregivers felt overloaded by information yet had unmet informational needs; (2) navigating volatility as a caregiver, with changing or unknown expectations; (3) caregivers as information brokers, which placed new burdens on caregivers to seek, share, and protect information; and (4) care for the caregiver, including unmet information needs related to self-care. CONCLUSION This study identified several informational challenges affecting caregivers. Caregivers have dynamic and evolving informational needs, and strategies that support caregivers through just-in-time information availability or dedicated caregiver check-ins may provide relief within the stress of caregiving.
Tetra-Branched Tetra-Cationic Ionic Liquids: Effects of Spacer and Tail Structure on Physical Properties
Authors: Ikeda Taichi 
Published: June 2020

Abstract
Herein, the synthesis of ten tetra-branched tetra-cationic ionic liquids, which consist of a pentaerythritol-based core, alkylene or ethylenedioxy spacers, imidazolium cationic units, and short alkyl tails, is described. The physical properties of the tetra-cations, including their glass transition and thermal decomposition temperatures, densities, viscosities, and ionic conductivities, were investigated. The tetra-cations were analyzed to determine the effects of the spacer and tail structure on the above-mentioned physical properties. The spacer unit located between the pentaerythrityl core and cationic unit was confirmed to be the key for improving ionic conductivity. A maximum ionic conductivity of 2.8 × 10−4 S cm−1 (25 °C under anhydrous conditions) and a minimum viscosity of 1.6 Pa s (25 °C) were observed. While the physical values of the tetra-cationic ionic liquids are close to those of di-cationic ionic liquids, their structure-property relationship is similar to that of poly-cations rather than di-cations.
CT-guided radiofrequency ablation of osteoid osteoma: established concepts and new ideas
Authors: Singh Dharmendra Kumar , Katyan Amit , Kumar Nishith , Nigam Kanchan , Jaiswal Binita , Misra Ritu Nair 
Published: June 2020

Osteoid osteoma is a painful benign bone tumour of children and young adults with characteristic clinico-radiological features depending upon the location of the lesion. Intraoperative visualisation of the nidus is difficult and therefore curative surgery is often associated with excessive bone removal, significant perioperative morbidity and potential need of bone grafting procedures. With advancement in cross-sectional imaging and radiofrequency ablation (RFA) technology, CT-guided RFA has emerged as the treatment of choice for the osteoid osteoma. This procedure involves accurate cannulation of the nidus and subsequent thermocoagulation-induced necrosis.
Multidisciplinary management approach is the standard of care for patients with osteoid osteoma. Appropriate patient selection, identification of imaging pitfalls, pre-anaesthetic evaluation and a protocol-based interventional approach are the cornerstone for a favourable outcome. Comprehensive patient preparation with proper patient position and insulation is important to prevent complications. Use of spinal needle-guided placement of introducer needle, namely, “rail–road technique” is associated with fewer needle trajectory modifications, reduced radiation dose and patient morbidity and less intervention time. Certain other procedural modifications are employed in special situations, for example, intra-articular osteoid osteoma and osteoid osteoma of the subcutaneous bone in order to reduce complications. Treatment follow-up generally includes radiographic assessment and evaluation of pain score. Dynamic contrast-enhanced MRI has been recently found useful for demonstrating post-RFA healing.
Ταξίδι στο Διαφορετικό
Authors: Οικονόμου Καλλιόπη 
Published: June 2020

Η πολιτισμική ανομοιογένεια είναι ένα από τα χαρακτηριστικά της μεταμοντέρνας κοινωνίας. Tο φαινόμενο της παγκοσμιοποίησης, οι κοινωνικές/οικονομικές ανισότητες μεταξύ ανεπτυγμένων και υπανάκτητων και υπό ανάπτυξη χωρών, οι πόλεμοι, οδηγούν καθημερινά μεγάλες μάζες πληθυσμού σε μετακίνηση/μετανάστευση, κυρίως σε χώρες με καλύτερο βιοτικό επίπεδο ζωής και συνθήκες. Τα άτομα αυτά, τα οποία αναζητούν μία «καλύτερη και ασφαλέστερη ζωή», προέρχονται από διαφορετικό πολιτισμικό και κοινωνικό υπόβαθρο, ως προς τη φυλή, θρησκεία, γλώσσα, κουλτούρα, εθνική προέλευση. Αντιλαμβάνονται διαφορετικά τον εαυτό τους, αντιμετωπίζουν ιδιαίτερα προβλήματα/δυσκολίες προσερχόμενα στη χώρα υποδοχής και έχουν ιδιαίτερη ανάγκη υπηρεσιών συμβουλευτικής. Η συμβουλευτική προσέγγιση για να είναι επιτυχής, είναι απαραίτητο να συνειδητοποιεί το διαφορετικό οικογενειακό, πολιτισμικό πλαίσιο και την ιδιαιτερότητα του ατόμου. Απαιτείται ευαισθητοποίηση και γνώση, εκ μέρους του συμβούλου, της δικής του πολιτιστικής ταυτότητας, των δικών του προσωπικών προκαταλήψεων, αξιών, στερεοτύπων εικασιών, προσδοκιών και παράλληλα διερεύνηση/αξιολόγηση της πολιτιστικής ταυτότητας του πελάτη καθώς και των σταδίων που διέρχεται η σχέση τους. Αξιολογούνται τα λεκτικά και μη λεκτικά μηνύματα. Οι δυσκολίες αυτές της διαπολιτισμικής συμβουλευτικής αναδεικνύονται μέσω της παρουσίασης της περίπτωσης μίας μονογονεϊκής οικογένειας προσφύγων, η οποία προσήλθε στο Κέντρο Παιδοψυχικής Υγιεινής-Αθήνας για αξιολόγηση των μαθησιακών δυσκολιών του παιδιού και παροχής υπηρεσιών συμβουλευτικής στο γονέα(μητέρα). Θα δειχθούν οι υποθέσεις που λαμβάνουν χώρα, οι τρόποι αξιολόγησης της συμπεριφοράς, των αξιών και επιλογής των στόχων της συμβουλευτικής.
Efi Avdela, Dimitris Arvanitakis, Eliza A. Delveroudi, Evgenios Matthiopoulos, Socrates Petmezas and Tassos Sakellaropoulos, eds., Φυλετικές θεωρίες στην Ελλάδα: Προσλήψεις και χρήσεις στις επιστήμες, την πολιτική, τη λογοτεχνία και την ιστορία της τέχνης κατά τον 19ο και τον 20ό αιώνα [Racial theories in Greece: perception and use in science, politics, literature and art history in the 19th and 20th centuries]
Authors: Hamilakis Yannis 
Published: June 2020

Review of Efi Avdela, Dimitris Arvanitakis, Eliza Anna Delveroudi, Evgenios Matthiopoulos, Socrates Petmezas, and Tassos Sakellaropoulos, eds., Φυλετικές θεωρίες στην Ελλάδα: Προσλήψεις και χρήσεις στις επιστήμες, την πολιτική, τη λογοτεχνία και την ιστορία της τέχνης κατά τον 19ο και τον 20ό αιώνα [Racial theories in Greece: perception and use in science, politics, literature and art history in the 19th and 20th centuries].Irakleio: Crete University Press and Philosophy School of the University of Crete Press, 2017. 520 pp.
Obesity free
Authors: Papadopoulou P. , Paggeiou T. , Ntakoula P. , Argyri P. 
Published: June 2020

Regarding the theme of the United Nations Sustainable Development Goals, we decided to concern ourselves with the 3rd goal, “Good Health and Well-Being”, the 12th goal, “Responsible Consumption and Production” and the 17th goal, “Partnerships to achieve the Goal”. Concerning our action involving obesity, we have conducted very detailed research. We realized that obesity and child obesity are both huge problems since the rates around the world nowadays are very high. In an attempt to understand the reasons behind this, we designed a questionnaire, so we could test how healthy our classmates’ lifestyle is. Then we contacted a nutritionist and they helped us make an informational leaflet about obesity, which we distributed to others. Lastly, we designed an online game concerning eating habits. While we did our research, we found out that our daily eating choices impact the environment greatly. Thus, changing our eating habits for the better may prove to be the most effective way to help the environment.
Trajetórias religiosas de jovens sem religião – algumas implicações para o debate sobre desinstitucionalização
Authors: Fernandes Sílvia 
Published: June 2020

Nas últimas duas décadas têm crescido o número de pessoas que se declaram sem religião. Quando são analisados os diversos segmentos sociais a partir de bases censitárias, é entre a juventude que se encontram os maiores índices dos que assumem essa autoidentidade. O fenômeno da desinstitucionalização religiosa passou a ser mais estudado a partir do penúltimo censo brasileiro realizado em 2000, que totalizou 7,4% da população brasileira declarando-se sem religião, o que representou um crescimento de aproximadamente 3% em uma década. Em 2010, os sem religião na população brasileira passaram a ser 8%, mas entre os jovens com idade entre 15 a 29 anos esse número chega a 10,1%. Este artigo objetiva compreender a trajetória de três jovens brasileiros sem religião, ex evangélicos residentes em regiões periféricas do Estado do Rio de Janeiro, onde predominam as igrejas evangélicas de corte pentecostal e neopentecostal. Discute-se o processo de construção da identidade juvenil cuja dinâmica rejeita a religião institucionalizada, e analisam-se as percepções desses jovens sobre tal processo.Palavras-chave: Juventude sem religião. Ateísmo. Agnosticismo. Desinstitucionalização.
RUANG BERNORMA LENGKAP ATAS OPERATOR LINEAR TERBATAS PADA RUANG FUNGSI TERINTEGRAL DUNFORD
Authors: Solikhin Solikhin , Sumanto YD , Aziz Abdul , Hariyanto Susilo , Utomo R. Heri Soelistyo 
Published: June 2020

Abstract. We are discussed operator norms on space of Dunford integral function. We show that sets of all bounded linear operator from dual space of Banach space into space of Lebesgue integral function is Banach space. Abstrak. Artikel ini membahas norma operator atas operator linear terbatas pada ruang fungsi terintegral Dunford. Himpunan semua operator linear dari ruang dual atas ruang Banach ke ruang fungsi terintegral Lebesgue merupakan ruang bernorma yang lengkap terhadap norma operator yang diberikan.
Ideologi dan Hegemoni dalam Shalawatan (Study ff The Ideology of Althusser and Gramsci's Hegemony)
Authors: Ghazalba M. Ahsana 
Published: June 2020

This study aims to describe the ideological meaning and the form of hegemonicism in the prayers of the popular Javanese people of their time. Analytical choice The ideological state apparatus initiated by Althusser is used to uncover the play of ideological meaning in prayer. While discussing the Gramsci hegemony, it is used to discuss the domination of the ideological state apparatus. This research method is descriptive qualitative. The object that is read is the meaning of persuasion, identity, appreciation, and punishment in prayer through the study of the state apparatus and hegemony. The result of this research are offer processes containing idealist that have the ability, identification, appreciation and punishment in shalling moral, ethical, and religious people.Keywords: Ideology; hegemony; shalawatan; meaning; identity. IntisariPenelitian ini bertujuan untuk mendeskripsikan makna ideologis dan bentuk penghegemonian dalam shalawatan masyarakat Jawa yang populer di zamannya. Pendekatan analitis Ideological state aparatus yang digagas oleh Althusser digunakan untuk mengungkap permainan makna ideologis dalam shalawatan. Sedangkan pendekatan hegemoni Gramsci digunakan untuk menyoroti pendominasian dari berjalannya Ideological state aparatus. Metode penelitian ini adalah deskriptif kualitatif. Objek yang diteliti adalah makna persuasif, identity, reward, dan punishment dalam shalawatan melalui kajian Ideological state apparatus dan hegemoni. Hasil dari penelitian ini adalah bahwa shalawatan merupakan gagasan ideologis yang memiliki sifat persuasif, identity, reward, dan punishment dalam membentuk masyarakat Jawa yang bermoral, beretika, dan religius.Kata kunci: Ideologi; hegemoni; shalawatan; makna; identitas.
Kant, Eudaimonism, Act-Consequentialism and the Fact of Reason
Authors: Sticker Martin 
Published: June 2020

Abstract
Kant considers eudaimonism as his main opponent and he assumes that his ethics is the only viable alternative to eudaimonism. He does not explicitly address theories differing from both eudaimonism and from his own. I argue that whilst Kant and Act-Consequentialists advocate different normative principles, their positions share the important abstract feature that they establish what is to be done from a rational principle and not based on what is in the self-interest of the respective agent, as Kant thinks eudaimonism does. Act-Consequentialism is thus closer to Kant’s ethics than is often assumed. I will demonstrate and vindicate this point with a new interpretation of the Fact of Reason. This reading also establishes that the notion of a Fact of Reason is less contentious than many of Kant’s critics believe. We should not expect that the Fact establishes Kantianism. Instead, the Fact is only supposed to count against a specific competing view of morality, namely, eudaimonism. Act-Consequentialists can accept the Fact as well.
Bolstering the Keystone: Kant on the Incomprehensibility of Freedom
Authors: Aylsworth Timothy 
Published: June 2020

Abstract
In this paper, I give an explanation and defense of Kant’s claim that we cannot comprehend how freedom is possible. I argue that this is a significant point that has been underappreciated in the secondary literature. My conclusion has a variety of implications both for Kant scholars and for those interested in Kantian ideas more generally. Most notably, if Kant is right that there are principled reasons why freedom is beyond our comprehension, then this would release his ethical views from an undesirable explanatory burden. It would be a boon for Kantians if they could ground their lofty claims about the unique, elevated status of rational agency without committing to an implausible view of libertarian freedom. I also suggest that there are certain debates concerning moral motivation and transcendental idealism that might have to change in response to Kant’s claims about the incomprehensibility of freedom.
Comparison of dynamic balancing responses following outward lateral perturbations during walking of healthy and post-stroke subjects
Authors: Matjačić Zlatko , Zadravec Matjaž , Olenšek Andrej 
Published: June 2020

Abstract:
Efficient dynamic balancing and movement coordination during walking are essential for stability. The objective of this preliminary study was to assess dynamic balancing responses in a selected post-stroke subject and to compare them with those assessed in neurologically intact individual. Balance Assessment Robot, a haptic robot that interfaces to a pelvis of a subject walking on an instrumented treadmill, was used to deliver perturbing pushes to the pelvis. We have assessed centre-of-pressure (CoP) and horizontal components of ground reaction forces (GRF) following outward pushes. The results have shown that depending on the amplitude of a perturbing push neurologically intact individual responded predominantly by “ankle” and “hip” strategies at lower amplitude of perturbation and “ankle” and “stepping” strategies at higher amplitude of perturbation. Post-stroke subject responded mainly by “ankle” and “hip” strategies when perturbed on the sound leg while the response when perturbed on the impaired leg was similar to the one observed in healthy subject. These preliminary results indicate that post-stroke subjects might be reluctant or not able to perform “cross step” with their impaired leg which is needed when counteracting outward perturbation.
Compensating the effects of FES-induced muscle fatigue by rehabilitation robotics during arm weight support
Authors: Meyer-Rachner Paul , Passon Arne , Klauer Christian , Schauer Thomas 
Published: June 2020

Abstract:
Motor functions can be hindered in consequence to a stroke or a spinal cord injury. This often results in partial paralyses of the upper limb. The effectiveness of rehabilitation therapy can be improved by the use of rehabilitation robotics and Functional Electrical Stimulation (FES). We consider a hybrid arm weight support combining both. In order to compensate the effect of FES-induced muscle fatigue, we introduce a method to substitute the decreasing level of FES support by cable-driven robotics. We evaluated the approach in a trial with one healthy subject performing repetitive arm lifting. The controller automatically adapted the support and thus no increase in user generated volitional effort was observed when FES induced muscle fatigue occured.
Adjustment of instantaneous reference walking speed during synchronized robot-based gait rehabilitation
Authors: Martinez Santiago Focke , Kuzmicheva Olena , Graeser Axel 
Published: June 2020

Abstract:
This paper presents a method to adjust the instantaneous reference speed of the mobile platform or treadmill of robotic gait rehabilitation systems during compliant, synchronized therapy. This method is particularly useful when the robot-patient synchronization algorithms generate compensations that fluctuate significantly throughout the gait cycle, making it unsuitable to apply these compensations directly to the reference speed values. The method was tested with a synchronization algorithm that generates continues temporal-compensations based on a phase controller. The tests comprised simulation of different scenarios and a practical test with a healthy subject using an over-ground gait rehabilitation system.
Design of a pressure sensitive matrix for analyzing direct haptic patient-therapist interaction in motor rehabilitation after stroke
Authors: Pust Michael , Ivanova Ekaterina , Schmidt Henning , Krüger Jörg 
Published: June 2020

Abstract:
Robot based therapy is one of the prevalent therapeutic approaches in motor stroke rehabilitation. It is often used in hospitals in combination with conventional therapy. In order to optimize human-robot interaction, we aim to investigate how a therapist physically supports patients during motor training of the upper extremities. This paper presents the design of a flexible textile sensor matrix, which measures the pressure exerted between therapist and patient during direct haptic interaction as well as the hand position and orientation in space. The matrix contains 144 sensors which enables measuring pressure intensity and localization of areas where the pressure is applied. The measurement matrix was evaluated with four healthy participants.