nils-herrmann/clean_scirepeval huggingface dataset:
Interactivity attributes: a new way of thinking and describing interactivity
Venue: CHI
Year: 2009

We propose a new perspective, seeing interactivity that is the immaterial part of an interactive artifact as something concretely describable and perceivable as we do with physical materials. In order to examine the validity of this proposal, we extracted a set of interactivity attributes to be used as a design language for thinking and describing interactivity in a new way, and conducted an online survey with 14 Flash prototypes representing pairs of values of 7 interactivity attributes we extracted. The result showed that all the interactivity attributes were significant, and participants experienced distinctive and meaningful emotional effects for different interactivity attributes.
A parallel multiselection greedy method for the radial basis function based mesh deformation
Year: 2018

Greedy algorithm has been widely adopted for the point selection procedure of radial basis function based mesh deformation. However, in large deformation simulations with thousands of points selected, the greedy point selection will be too expensive and thus become a performance bottleneck. To improve the efficiency of the point selection procedure, a parallel multi selection greedy method has been developed in this paper. Multiple points are selected at each step to accelerate the convergence speed of the greedy algorithm. In addition, two strategies are presented to determine the specific selecting number. The parallelization of the greedy point selection is realized based on a master slave model, and a hybrid decomposition algorithm is proposed to address the load imbalance problem. Numerical benchmarks show that both our multi selection method and the parallelization could obviously improve the point selection efficiency. Specifically, total speedups of 20 and 55 are separately obtained for the 3D undulating fish with 106 cell mesh and the 3D rotating hydrofoil with 11 million cell mesh. This article is protected by copyright. All rights reserved.
How fast can the European eel (Anguilla anguilla) larvae cross the Atlantic Ocean
Year: 2009

The migration duration of European eel (Anguilla anguilla) larvae (leptocephali) from the spawning areas in the Sargasso Sea to the European continental shelf remains highly controversial, with estimates varying from 6 months to more than 2 yr. We estimated the fastest migration period and the shortest distance travelled by eel larvae by simulating Lagrangian particles released in the Sargasso Sea and by simulating a range of larval behaviours (fixed depth drift, vertical diurnal migration and active depth selection to maximize current velocity) This enabled us to compute (i) a passive drift speed, and (ii) a hypothetic swimming speed needed for European eel larvae to cross the Atlantic in 6 months (i.e. the migration duration estimated from otolith daily growth increments) Our results show that the minimum travel time for an eel larva that is passively drifting was 10 months and 3 days. Active behaviours (vertical diurnal migration and rheotaxis) paradoxically increased the migration period. We found that for leptocephali to cross the Atlantic Ocean in 6 months, they would need to swim a minimum of 3.4 body lengths per second for 8200 km. No larvae have been observed with such swimming capabilities. These results provide evidence that leptocephali cannot cross the Atlantic in 6 months.
White Paper: Interventional MRI: Current Status and Potential for Development Considering Economic Perspectives, Part 1: General Application.
Venue: RoFo Fortschritte auf dem Gebiete der Rontgenstrahlen und der Nuklearmedizin
Year: 2017

MRI is attractive for the guiding and monitoring of interventional procedures due to its high intrinsic soft tissue contrast and the possibility to measure physiologic parameters like flow and cardiac function.  The current status of interventional MRI for the clinical routine was analyzed.  The effort needed for the development of MR safe monitoring systems and instruments initially resulted in the application of interventional MRI only for procedures that could not be performed by other means. Accordingly, biopsy of lesions in the breast, which are not detectable by other modalities, has been performed under MRI guidance for decades. Currently, biopsies of the prostate under MRI guidance are established in a similar fashion. At many sites blind biopsy has already been replaced by MR guided biopsy or at least by the fusion of MR images with ultrasound. Cardiovascular interventions are performed at several centers for ablation as a treatment for atrial fibrillation.  Interventional MRI has been established in the clinical routine for a variety of indications. Broader application can be expected in the clinical routine in the future owing to the multiple advantages compared to other techniques.  Due to the significant technical effort, MR guided interventions are only recommended in the long term for regions in which MRI either facilitates or greatly improves the intervention. Breast biopsy of otherwise undetectable target lesions has long been established in the clinical routine. Prostate biopsy is currently being introduced in the clinical routine for similar reasons. Other methods such as MR guided focused ultrasound for the treatment of uterine fibroids or tumor ablation of metastases represent alternative methods and are offered in many places. Endovascular MR guided interventions offer advantages for a number of indications and have already been clinically established for the treatment of children with congenital heart defects and for atrial ablation at individual centers. Greater application can be expected in the future.  Barkhausen J, Kahn T, Krombach GA et al. White Paper: Interventional MRI: Current Status and Potential for Development Considering Economic Perspectives, Part 1: General Application. Fortschr Rontgenstr 2017; 189: 611 623.
Coexistence of excellent piezoelectric performance and high Curie temperature in KNN based lead free piezoelectric ceramics
Year: 2020

A new KNN based lead free piezoelectric material system of (1 x)K0.4Na0.6Nb0.96Sb0.04O3 x(Bi0.45Sm0.05)Na0.5ZrO3 (abbreviated as KNNS xBSNZ, 0.00 x 0.06) is designed to obtain high performance to meet the requirement of next generation electronic devices. The relevant electric properties such as piezoelectricity, strain, and temperature stability are analyzed in detail. An excellent comprehensive property (d33~508 pC/N, TC~268 degC) is obtained in ceramic with x 0.04 through the construction of rhombohedral orthorhombic tetragonal (R O T) phase boundary. In addition, a good temperature stability of strain for KNNS 0.04BSNZ ceramic is also obtained within the range from room temperature to 175 degC (Suni100degC/SuniRT~97.81% Suni150degC/SuniRT~84.67% which is comparatively superior to some reported KNN based ceramics and lead based ceramics. Therefore, we believe that this new material system would be a promising lead free candidate for the practical applications.
EFEKTIVITAS PELATIHAN REGULASI EMOSI TERHADAP PENURUNAN TINGKAT STRES PADA MAHASISWA PEREMPUAN YANG MENGERJAKAN SKRIPSI
Year: 2017

Mahasiswa yang mengerjakan skripsi akan merasakan perubahan emosional seperti sedih, cemas, takut, khawatir, gelisah, merasa bersalah, dan malu yang berujung pada stres. Hal ini dikarenakan mahasiswa yang tidak mampu meregulasi emosi yaitu tidak mampu mengatur dan mengelola secara efektif emosi yang muncul. Tujuan penelitian ini adalah untuk mengetahui efektivitas pelatihan regulasi emosi terhadap penurunan tingkat stres mahasiswa perempuan yang mengerjakan skripsi. Hipotesis yang diajukan adalah pelatihan regulasi emosi efektif dapat menurunkan tingkat stres mahasiswa perempuan yang sedang mengerjakan skripsi. Subjek penelitian berjumlah 18 orang mahasiswa yang sedang mengerjakan skripsi di Fakultas Psikologi UNM. Rancangan penelitian ini adalah rancangan eksperimen pretest posttest control group design. Hasil penelitian menunjukkan bahwa nilai U test 10,5 dengan nilai signifikan p 0,008 (p<0,05) artinya pelatihan regulasi emosi efektif untuk menurunkan tingkat stres akademik mahasiswa yang mengerjakan skripsi.  Pelatihan regulasi emosi, Stres mahasiswa yang mengerjakan skripsi.
Piecing together the Ganges Brahmaputra Meghna River delta: Use of sediment provenance to reconstruct the history and interaction of multiple fluvial systems during Holocene delta evolution
Year: 2014

Three main rivers the Ganges, Brahmaputra, and Meghna coalesce in the Bengal basin to form the world's largest delta system, which serves as filter and gateway between the Himalayan collision and vast Bengal fan repository. New insights into the Holocene construction of the Ganges Brahmaputra Meghna delta, with a focus on river sedimentation, channel migration, and avulsion history, are presented here using the Sr geochemistry of bulk sediments as a provenance tracer. The sediment load of each river transmits a distinct Sr signature owing to differences in source rocks from the Himalaya, Tibet, and local regions, allowing for effective tracking of river channels and stratigraphic development within the delta. In the early Holocene, vigorous delta aggradation occurred under rapid sea level rise and high river discharge and supported the construction of sand dominated stratigraphy by laterally mobile, braided stream channels. However, the vertically (i.e. temporally) uniform, but geographically distinct, Sr signatures from these deposits indicate that the Ganges, Brahmaputra, and Meghna fluvial systems remained isolated from one another and apparently constrained within their lowstand valleys. By the mid Holocene, though, delta stratigraphy records spatially and temporally nonuniform Sr signatures that hallmark the onset of avulsions and unconstrained channel migration, like those that characterize the modern Ganges and Brahmaputra fluvial systems. Such mobility developed in the mid Holocene despite declining discharge and sea level rise, suggesting that earlier channel behavior had been strongly influenced by antecedent topography of the lowstand valleys. It is only after the delta had aggraded above the valley margins that the fluvial systems were able to avulse freely, resulting in numerous channel reorganizations from mid Holocene to present. These channel system behaviors and their role in delta evolution remain coarsely defined based only on this initial application of Sr based provenance tools, but the approach is promising and suggests that a more complete understanding can be achieved with continued study.
Practical program repair via bytecode mutation
Venue: ISSTA
Year: 2019

Automated Program Repair (APR) is one of the most recent advances in automated debugging, and can directly fix buggy programs with minimal human intervention. Although various advanced APR techniques (including search based or semantic based ones) have been proposed, they mainly work at the source code level and it is not clear how bytecode level APR performs in practice. Also, empirical studies of the existing techniques on bugs beyond what has been reported in the original papers are rather limited. In this paper, we implement the first practical bytecode level APR technique, PraPR, and present the first extensive study on fixing real world bugs (e.g. Defects4J bugs) using JVM bytecode mutation. The experimental results show that surprisingly even PraPR with only the basic traditional mutators can produce genuine fixes for 17 bugs; with simple additional commonly used APR mutators, PraPR is able to produce genuine fixes for 43 bugs, significantly outperforming state of the art APR, while being over 10X faster. Furthermore, we performed an extensive study of PraPR and other recent APR tools on a large number of additional real world bugs, and demonstrated the overfitting problem of recent advanced APR tools for the first time. Lastly, PraPR has also successfully fixed bugs for other JVM languages (e.g. for the popular Kotlin language) indicating PraPR can greatly complement existing source code level APR.
The phosphotransferase system gene ptsH plays an important role in MnSOD production, biofilm formation, swarming motility, and root colonization in Bacillus cereus 905.
Venue: Research in microbiology
Year: 2019

The rhizosphere bacterium Bacillus cereus 905 is capable of promoting plant growth through effective colonization on plant roots. The sodA2 encoding manganese containing superoxide dismutase (MnSOD2) is important for survival of B. cereus 905 in the wheat rhizosphere. However, the genes involved in regulating sodA2 expression and the mechanisms of rhizosphere colonization of B. cereus 905 are not well elucidated. In this study, we found that the deletion of the ptsH gene, which encodes the histidine phosphorylatable protein (HPr) a component of the phosphotransferase system (PTS) causes a decrease of about 60% in the MnSOD2 expression. Evidences indicate that the ptsH dramatically influences resistance to oxidative stress, glucose uptake, as well as biofilm formation and swarming motility of B. cereus 905. Root colonization assay demonstrated that DptsH is defective in colonizing wheat roots, while complementation of the sodA2 gene could partially restore the ability in utilization of arabinose, a non PTS sugar, and root colonization caused by the loss of the ptsH gene. In toto, based on the current findings, we propose that PtsH contributes to root colonization of B. cereus 905 through multiple indistinct mechanisms, involving PTS and uptake of PTS sugars, up regulation of MnSOD2 production, and promotion of biofilm formation and swarming motility.
Equipping International Graduate Students with Cognitive and Metacognitive Strategies: Literature Review Writing
Year: 2019

With the increasing numbers of international students pursing graduate degrees in English speaking countries, teaching students how to write a literature review is crucial. Literature review writing is one of the most daunting writing tasks as it involves different layers and requires various writing skills to be able to research, analyze, and synthesize information. Adopting the writing as a process approach, this type of writing can be broke down into different stages to equip students with skills needed to navigate each stage effectively and efficiently. Detailed procedures, activities, and assignments to teach students how to produce a literature review are illustrated in this paper.
TIC para la inclusion educativa universitaria en la UPS Sede Guayaquil
Venue: INNOVA Research Journal
Year: 2019

La inclusion educativa universitaria es un tema que ha sido muy poco investigado en nuestro pais. Muchas variables inciden en una plena inclusion educativa de estudiantes con discapacidad a nivel superior. El objetivo de este articulo es identificar las TIC que los estudiantes de diferentes carreras de la Universidad Politecnica Salesiana Sede Guayaquil utilizan para favorecer su inclusion, asi como el porcentaje de uso de las TIC que ofrece el Centro de Apoyo para la Inclusion de la UPS. A traves de la revision bibliografica y el analisis documental, entrevistas a personal administrativo, tecnico y docente de la universidad, asi como de encuestas aplicadas a estudiantes con discapacidad se pudo obtener informacion relevante sobre las TIC que se utilizan en el proceso de ensenanza aprendizaje inclusivo. Como resultado se obtuvo la identificacion de las herramientas TIC que los estudiantes con discapacidad utilizan en su proceso de ensenanza aprendizaje.
Of friends and kollegen: understanding male friendships in Swakopmund, Namibia
Year: 2020

This article explores understandings of friendship between men in Swakopmund, Namibia. These friendships sat (sometimes uncomfortably) closely with notions of "being gay," in that they were often companionate relationships of caring and intimacy that also involved sex and exchange. Yet the terminology of sexual identity was usually rejected by these men, and they were also normally involved in long term relationships with women. These friendships are contextualised in three ways. They are described in relation to a growing LGBTQIA+ movement in Namibia and through the local notion of kollegen, "other men" who had arrived in the city but who could not be trusted. The last section examines some of the issues involved in these friendships, particularly in terms of fighting and jealousy. The article adds to a growing body of literature that calls for locally situated understandings of masculinities in African contexts.
Twenty Five Years of Research in Belief Change
Year: 2011

The 1985 paper by Carlos Alchourron (1931 1996) Peter Gardenfors, and David Makinson (AGM) "On the Logic of Theory Change: Partial Meet Contraction and Revision Functions" was the starting point of a large and rapidly growing literature that employs formal models in the investigation of changes in belief states and databases. In this review, the first twenty five years of this development are summarized. The topics covered include equivalent characterizations of AGM operations, extended representations of the belief states, change operators not included in the original framework, iterated change, applications of the model, its connections with other formal frameworks, computatibility of AGM operations, and criticism of the model.
Exercise, cognition, and the aging brain.
Venue: Journal of applied physiology
Year: 2006

We provide a brief review of the literature on exercise effects on brain and cognition. To this end, we focus on both prospective and retrospective human epidemiological studies that have examined the influence of exercise and physical activity on cognition and dementia. We then examine the relatively small set of human randomized clinical trials that have, for the most part, focused on exercise training effects on cognition. Next, we discuss animal research that has examined the molecular, cellular, and behavioral effects of exercise training. Finally, we conclude with a summary and brief discussion of important future directions of research on fitness cognition and brain.
Water Governance in the Middle East and North Africa: An Unfinished Agenda
Year: 2010

All aspects of the fresh water situation in the Middle East and North Africa are underlain by the scarcity of fresh water in the region compared with the demands for it. However, physical scarcity has been worsened by institutions that may once have been adequate but that are increasingly failing to meet modern needs for water to be extracted in ways that are ecologically sustainable, used in ways that are economically efficient, and distributed in ways that are socially equitable. Despite this discouraging picture, the thesis of this article is that, in response to both internal and external forces, water related institutions in MENA are slowly changing in ways that seem likely to improve the situation. Of three key goals identified early in the article greater attention to demand management, wider stakeholder participation, and adoption of pro poor strategies modest gains are evident on the first two, but little on the third.
General management of innovation: lessons from the Shaker community
Year: 2012

The purpose of this study is to employ the concepts of the general management of innovation to help explain the extraordinary inventiveness of the Shaker religious community. Utilizing historical accounts of Shaker philosophy and practice, the paper examines Shaker innovativeness through the lens of the general management of innovation in order to develop a historical interpretation of innovation within the Shaker community. It was demonstrated that Shaker society possessed a large number of the organizational characteristics, management practices, and values, which have subsequently been found to be positively related to innovative behaviors in modern institutions. Future research should examine in even greater depth specific values, structure, and practices of Shaker communities as well as focusing on key concepts in other fields such as product, operations, or R&D management to yield additional insights into the managem.
An Efficient Certificateless Aggregate Signature Scheme for Blockchain Based Medical Cyber Physical Systems
Venue: Sensors
Year: 2020

Different from the traditional healthcare field, Medical Cyber Physical Systems (MCPS) rely more on wireless wearable devices and medical applications to provide better medical services. The secure storage and sharing of medical data are facing great challenges. Blockchain technology with decentralization, security, credibility and tamper proof is an effective way to solve this problem. However, capacity limitation is one of the main reasons affecting the improvement of blockchain performance. Certificateless aggregation signature schemes can greatly tackle the difficulty of blockchain expansion. In this paper, we describe a two layer system model in which medical records are stored off blockchain and shared on blockchain. Furthermore, a multi trapdoor hash function is proposed. Based on the proposed multi trapdoor hash function, we present a certificateless aggregate signature scheme for blockchain based MCPS. The purpose is to realize the authentication of related medical staffs, medical equipment, and medical apps, ensure the integrity of medical records, and support the secure storage and sharing of medical information. The proposed scheme is highly computationally efficient because it does not use bilinear maps and exponential operations. Many certificateless aggregate signature schemes without bilinear maps in Internet of things (IoT) have been proposed in recent years, but they are not applied to the medical field, and they do not consider the security requirements of medical data. The proposed scheme in this paper has high computing and storage efficiency, while meeting the security requirements in MCPS.
Laboratory Determination of Thermal Protection System Materials Surface Catalytic Properties
Year: 2007

Different experimental approaches to measuring catalytic reaction efficiencies on thermal protection system materials are reviewed. Special emphasis is given to the theory and application of the diffusion tube side arm reactor technique. In this technique, reactants diffuse into a dead end tube and are progressively removed from the gas phase by surface reactions on the walls, establishing unique steady state concentration profiles along the length of the tube. Reactant loss probabilities are determined by matching experimentally measured species profiles to calculated solutions of a reaction diffusion model. The advantages of laser based methods for species concentration measurements are summarized and different approaches to reactor modeling and the extraction of reaction efficiencies from measured data are presented. The advantages and limitations of the diffusion tube side arm technique, the associated uncertainties in derived loss probabilities, and the prospects for further laboratory development, are presented.
Multiplicity and concentration of nontrivial nonnegative solutions for a fractional Choquard equation with critical exponent
Year: 2019

In present paper, we study the fractional Choquard equation \begin{aligned} \varepsilon {2s} \Delta ^s u+V(x)u=\varepsilon \mu N}\left( \frac{1}|x|\mu *F(u)\right) f(u)|u|{2^*_s 2}u \end{aligned} where \varepsilon >0\ is a parameter, (s\in (0,1)(N>2s,(2^*_s=\frac{2N}{N 2s} and (0<\mu \min {2s,N 2s\ Under suitable assumption on V and f, we prove this problem has a nontrivial nonnegative ground state solution. Moreover, we relate the number of nontrivial nonnegative solutions with the topology of the set where the potential attains its minimum values and their's concentration behavior.