nils-herrmann/clean_scirepeval huggingface dataset:
Effective Waterproofing of Railway Culvert Pipes
Year: 2019

The composition material for waterproofing of the railway infrastructure objects, in particular, culvert pipes is suggested in the article. The waterproof composition contains an acrylic polymer and a filler. The comparison of the composition properties with two kinds of the fillers (silica sand and Portland cement) is carried out. The following properties are defined water absorption, corrosion stability, stability in an aggressive environment, frost resistance to evaluating the suitability of the proposed composition for waterproofing. These properties are determined for three batches: an acrylic polymer without a filler, an acrylic polymer with silica sand, and an acrylic polymer with Portland cement. The test results show that the composition with silica sand possesses the best waterproofing properties. Wherein the quantity of silica sand is 1.5 mass parts to the quantity of polymer. Compared to the non filled acrylic polymer the offered composition is characterised less water absorption, more significant corrosion stability and stability in an aggressive environment, better frost resistance. The mix with Portland cement shows a bit worse results at a higher cost of the material in whole.
FNET/GridEye for Future High Renewable Power Grids Applications Overview
Venue: 2018 IEEE PES Transmission Distribution Conference and Exhibition Latin America (T&D LA)
Year: 2018

Integration of renewable generation sets high requirements for real time situational awareness of power systems. FNET/GridEye, a synchrophasor measurement network for wide area power system monitoring has been assisting realtime situational awareness and helping improve reliability in many power grids for 14 years. To aid operators confronting challenges from growing renewables, FNET/GridEye continues increasing its measurement accuracy and enhancing its functionalities. This paper provides an overview on the mostrecent FNET/GridEye application improvements that help power grid operation with high renewable penetration. The real time applications presented in this paper include event location, oscillation monitoring, inertia estimation, and islanding detection.
Can we stop nucleoside analogues before HBsAg loss?
Venue: Journal of viral hepatitis
Year: 2019

Most of the current guidelines and the existing data suggest that long term therapy with nucleos(t)ide analogue(s) [NA(s) may be stopped in carefully selected chronic hepatitis B patients who remain HBsAg positive. In particular, NA(s) may be discontinued in such patients without pre existing cirrhosis who achieved long term on therapy virological remission >12 months of HBeAg seroconversion and HBV DNA undetectability for initially HBeAg positive cases; =3 years of HBV DNA undetectability for HBeAg negative cases) and are expected to remain under close follow up after NA(s) discontinuation. The majority of patients will develop post NA(s) virological relapses and a proportion of them will have biochemical relapses and occasionally flares, but prompt retreatment can reintroduce remission. No reliable predictor(s) of post NA(s) relapses have been identified so far. HBsAg loss develops in a progressively increasing proportion of chronic hepatitis B patients who discontinue NA(s) with HBsAg loss rates being higher in Caucasian patients with HBeAg negative chronic hepatitis B. Follow up at least every 3 months for the first year seems to be appropriate for all chronic hepatitis B patients who discontinue NA(s) while HBeAg negative patients need to be followed more closely (monthly) during the first 3 months. Predefined criteria for retreatment are quite important, and the best candidates for retreatment are probably the patients with persistent =3 months) liver disease activity and those with severe flares.
Adversarial Imitation Learning between Agents with Different Numbers of State Dimensions
Venue: 2019 IEEE Second International Conference on Artificial Intelligence and Knowledge Engineering (AIKE)
Year: 2019

Designing a reward is difficult in reinforcement learning because there is often a tradeoff between the two roles played by the reward, one being to make an agent behave as desired and the other being to allow an agent to learn a policy easily. Meanwhile, adversarial imitation learning can eliminate the design of a reward by estimating the reward that the expert is maximizing from trajectories of the expert. However, previous methods of adversarial imitation learning can be applied only when the number of state dimensions is the same for the agent and expert. We here define the new problem of adversarial imitation learning between agents having different numbers of state dimensions and propose a method of solving the problem. Our method makes the numbers of dimensions equal by inserting an arbitrary constant into the smaller state so that the feature extractor can be shared between agents. In addition, we verify whether domain adaptation can extract a feature independent of the number of dimensions. We find that the imitation rate of our method is at least 80% in a simulation of a reaching task while rates of previous methods are no more than 55% We also find that our method is robust against the value to be inserted into the state, the dimension into which the value is inserted, and the numbers of joints of the agent and expert.
Requirement specification and model checking of a real time scheduler implementation
Venue: RTNS
Year: 2020

Implementing a new scheduler within a real time operating system is challenging. The transition from a theoretical scheduling policy specification to a real platform implementation requires several constraints to be taken into account. Therefore, a verification process must support the implementation work to give it a level of confidence and validate its correctness. In this paper, we present such a verification approach which is based on model checking. It aims to identify subtle issues in our implementation of scheduling policies within an OSEK/VDX real time operating system called Trampoline. As an example, the approach is conducted on elaborated models of an implemented G EDF scheduler along with other OS components that contribute to the scheduling decision. Then, the verification is carried out by checking a set of relevant requirements which are identified based on the expected behavior of the scheduler as specified in the literature. This approach demonstrated its feasibility since potential issues are detected in our implementation.
The Impact of Blockchain Technology on Business Models in the Payments Industry
Venue: Wirtschaftsinformatik
Year: 2017

Because of its potentially disruptive influence on business models (BMs) blockchain technology has sparked a lively debate among researchers. Our Delphi study sets out to explore the impact of blockchain in payments, which represents a major cornerstone of banking and the cradle of this technology. The results, grouped around four areas of thoughts, indicate that blockchain allows the offering of new services and renders some of the current ones obsolete. This consequently impacts the financial structure of firms in the payments industry and further generates great potential for new BMs while making some existing ones obsolete. Eventually, new players, which are better able to leverage the potential of blockchain, will give a strong impulse to this development. Our findings contribute to the literature by providing new insights about the impact of innovative technologies on BMs and have further practical implications by presenting a better understanding of future BMs in payments.
DESAIN PEMBELAJARAN DARING MATA KULIAH RANGKAIAN DIGITAL BERBANTUAN SIMULASI
Year: 2019

Lulusan program studi vokasi dituntut siap bekerja di industry sesuai bidangnya. Oleh karena itu lulusan program studi vokasi perlu dibekali dengan pengalaman menyelesaikan permasalahan industri. Kebijakan pembelajaran jarak jauh secara daring telah mengurangi intensitas kegiatan untuk memperoleh pengalaman tersebut secara langsung. Mengetahui efektifitas desain perangkat pembelajaran berbantuan simulasi Komputer secara daring untuk meningkatkan kompetensi praktis mahasiswa dalam menyelesaikan permasalahan industri. Dengan desain pembelajaran ini diharapkan mampu meningkatkan kompetensi, sehingga ketika lulus akan memiliki kompetensi yang sesuai dengan kebutuhan industri. Desain pengembangan perangkat pembelajaran menggunakan four D model Tahap persiapan digunakan untuk mendefinisikan permasalahan rangkaian digital, tahap kedua merancang perangkat pembelajaran daring dan tahap ketiga membuat perangkat pembelajaran mata kuliah rangkaian digital. Hasil penelitian menunjukkan bahwa pengembangan perangkat pembelajaran: (1) RPS memenuhi kriteria sangat valid (nilai kevalidan 3,29) LKM daring memenuhi kriteria sangat valid (nilai kevalidan 3,36) dan LP Daring memenuhi kriteria sangat valid (nilai kevalidan 3,6) (2) keterlaksanaan pembelajaran tergolong baik dengan rata rata 3,2; (3) Perangkat pembelajaran dinyatakan efektif dengan persentase 83,33% mahasiswa berada pada kategori terampil atau sangat terampil. Hasil belajar mahasiswa mencapai ketuntasan klasikal dengan persentase 80,56% untuk aspek pengetahuan dan 77,78% untuk aspek keterampilan.
Managerialism and teacher professional identity: impact on well being among teachers in the UK
Year: 2019

In Europe, well being in the workplace has increasing prominence in the policy and research agenda, and education is a key context in which the challenge of occupational stress has been reported. Traditionally, the ethos in school settings could be said to be shaped by the vocational motivation of employees; that is, a commitment to a social benefit through the development, support and improvement of the pupils, and this commitment used to override workplace challenges and help teachers deal with stress. This article argues that teachers' commitment is being eroded by the impact of bureaucratic changes at management level, such as the setting of performance targets, increased workload, increased accountability and changes in the curriculum. This in turn impacts on their professional identity and can negatively affect their mental health and well being. The current article describes a qualitative study undertaken among 39 teachers and 6 school leaders across England and Wales in which we sought to understand, through interviews, the contextual workplace experiences of teachers who experienced work related stress. Policy developments in education and management implementation of these developments and the consequent erosion of teacher autonomy dominated the narratives. We examine how managerialism can relate to a loss of commitment, professional identity, self confidence and vulnerability to stress, anxiety and depression. This article proposes that educational reforms, and the rigidly prescribed organisational and management structures that accompany them, need to be weighed against their impacts on professional identity and personal well being.
Potential biomarkers in saliva for oral squamous cell carcinoma.
Venue: Oral oncology
Year: 2010

Sensitive and reliable early diagnostic markers for oral squamous cell carcinoma (OSCC) remain unavailable. Early identification of recurrence for OSCC is also a challenge. Unlike the other deep cancers, OSCC is located in oral cavity. The DNA, RNA, and protein derived from the living cancer cells and inflammatory cells then can be conveniently obtained from saliva. High throughput genomic and proteomic approaches have been carried out to identify the potential biomarkers in body fluids such as saliva and blood for diagnosis and prognosis of OSCC. This article reviewed the recently identified biomarkers from saliva for OSCC. In addition, the biomarkers which have been correlated with OSCC tumor malignancy by molecular pathology analysis are also described. Finally, the potential biomarkers that have been demonstrated to associate with the malignant OSCC may be used for salivary screening for high risk patients are suggested. This article may help to identify the potential biomarkers for screening and the molecular pathology analysis for high risk patients of OSCC. Effective screening to identify high risk patients can allow the clinician to provide the appropriate treatment without delay and to reduce the recurrence of OSCC.
A Survey of Wearable Devices and Challenges
Venue: IEEE Communications Surveys Tutorials
Year: 2017

As smartphone penetration saturates, we are witnessing a new trend in personal mobile devices wearable mobile devices or simply wearables as it is often called. Wearables come in many different forms and flavors targeting different accessories and clothing that people wear. Although small in size, they are often expected to continuously sense, collect, and upload various physiological data to improve quality of life. These requirements put significant demand on improving communication security and reducing power consumption of the system, fueling new research in these areas. In this paper, we first provide a comprehensive survey and classification of commercially available wearables and research prototypes. We then examine the communication security issues facing the popular wearables followed by a survey of solutions studied in the literature. We also categorize and explain the techniques for improving the power efficiency of wearables. Next, we survey the research literature in wearable computing. We conclude with future directions in wearable market and research.
Cryogenic Temperature Sensor Based on Fresnel Reflection From a Polymer Coated Facet of Optical Fiber
Venue: IEEE Sensors Journal
Year: 2018

We report a fiber optic sensor based on Fresnel reflection for real time monitoring of cryogenic temperatures. Coating highly thermo sensitive polymers on the facet of optical fiber, we obtain average measurement sensitivity 0.04 dB/K in temperature range of 90 298 K. We show theoretical background of polymer's thermo optic response and the experimental results performed with two kinds of coating polymers, epoxy resin, and polymethyl methacrylate. The experimental results confirm the suitability for cryogenic temperature sensing applications, such as superconducting lines and magnets with simple and cost effective sensor structure and signal processing.
PCA SRGAN: Incremental Orthogonal Projection Discrimination for Face Super resolution
Venue: ACM Multimedia
Year: 2020

Generative Adversarial Networks (GANs) have been employed for face super resolution but they bring distorted facial details easily and still have weakness on recovering realistic texture. To further improve the performance of GAN based models on super resolving face images, we propose PCA SRGAN which pays attention to the cumulative discrimination in the orthogonal projection space spanned by PCA projection matrix of face data. By feeding the principal component projections ranging from structure to details into the discriminator, the discrimination difficulty will be greatly alleviated and the generator can be enhanced to reconstruct clearer contour and finer texture, helpful to achieve the high perception and low distortion eventually. This incremental orthogonal projection discrimination has ensured a precise optimization procedure from coarse to fine and avoids the dependence on the perceptual regularization. We conduct experiments on CelebA and FFHQ face datasets. The qualitative visual effect and quantitative evaluation have demonstrated the overwhelming performance of our model over related works.
Global Effects of DDX3 Inhibition on Cell Cycle Regulation Identified by a Combined Phosphoproteomics and Single Cell Tracking Approach
Venue: Translational oncology
Year: 2018

DDX3 is an RNA helicase with oncogenic properties. The small molecule inhibitor RK 33 is designed to fit into the ATP binding cleft of DDX3 and hereby block its activity. RK 33 has shown potent activity in preclinical cancer models. However, the mechanism behind the antineoplastic activity of RK 33 remains largely unknown. In this study we used a dual phosphoproteomic and single cell tracking approach to evaluate the effect of RK 33 on cancer cells. MDA MB 435 cells were treated for 24 hours with RK 33 or vehicle control. Changes in phosphopeptide abundance were analyzed with quantitative mass spectrometry using isobaric mass tags (Tandem Mass Tags) At the proteome level we mainly observed changes in mitochondrial translation, cell division pathways and proteins related to cell cycle progression. Analysis of the phosphoproteome indicated decreased CDK1 activity after RK 33 treatment. To further evaluate the effect of DDX3 inhibition on cell cycle progression over time, we performed timelapse microscopy of Fluorescent Ubiquitin Cell Cycle Indicators labeled cells after RK 33 or siDDX3 exposure. Single cell tracking indicated that DDX3 inhibition resulted in a global delay in cell cycle progression in interphase and mitosis. In addition, we observed an increase in endoreduplication. Overall, we conclude that DDX3 inhibition affects cells in all phases and causes a global cell cycle progression delay.
Occurrence and characterization of Salmonella isolates in raw eggs from quail and chicken in selected poultry farms in Jos, Plateau State, Nigeria
Year: 2020

The study was carried out in three Local Government Areas: Jos North, Jos South and Jos East. For each egg type, twelve (12) samples each were collected from five (5) farms. A total of 360 samples were randomly collected consisting of equal number of quail and chicken eggs (180 each) A well structured questionnaire was used to help analyze the results. Samples were examined for the presence of Salmonella isolates using standard microbiological practices. Isolates were confirmed using biochemical tests, and molecular characterization (using specific primers) Isolates were also tested for antimicrobial susceptibility by disc diffusion method. Results showed that 3(1.7% chicken eggs were positive for Salmonella infection whereas no positive result was recorded from quail eggs. This resulted in a total prevalence of 0.9% Bukuru and Zawan (Jos South) were the only farm locations with Salmonella positive cases with 1(8.3% and 2(16.7% respectively. Although the present finding has found low prevalence of salmonellosis in chicken and quail egg in the study area, there is need for constant monitoring on regular basis to avert health risks associated with consuming Salmonellae infected poultry products in endemic areas. The three (3) isolates were Salmonella Gallinarum and gave agglutination reaction with polyvalent O antisera and no reaction with polyvalent H antisera. Polymerase Chain Reaction (PCR) results confirmed all the three (3) isolates that were successfully amplified using specific primers, thus supporting phenotypic outcome. The information provided in this report is crucial to all stakeholders including the poultry farmers, consumers and regulators of chicken products.  Salmonella; Quail and Chicken eggs; Jos; Nigeria
Effect of duration of smartphone use on muscle fatigue and pain caused by forward head posture in adults
Venue: Journal of physical therapy science
Year: 2016

The effect of duration of smartphone use on neck and shoulder muscle fatigue and pain was investigated in adults with forward head posture.  Thirty four adults with forward head posture were classified into groups by duration of smartphone use: 11 used a smartphone for 10 minutes each (group 1) 12 for 20 minutes each (group 2) and 11 for 30 minutes each (group 3) Fatigue cervical erector spinae and upper trapezius muscles was measured by electromyography, and pain before and after the experiment was evaluated using Visual Analog Scale (VAS) scores.  There was a significant difference in the degree of fatigue in the left upper trapezius muscles in group 2 and left cervical erector spinae and bilateral upper trapeziuses group 3. There was a significant difference in fatigue in the left upper trapezius in groups 1 and 3. The VAS showed significant differences in all groups before and after the experiment and between groups 1 and 3.  Pain and fatigue worsened with longer smartphone use. This study provided data on the proper duration of smartphone use. Correct posture and breaks of at least 20 minutes are recommend when using smartphones.
Epigenetic Modifications in Gastric Cancer: Focus on DNA Methylation.
Venue: Gene
Year: 2020

Gastric cancer is a complex heterogeneous disease which is the fourth prevalent malignancy worldwide. Although, several diagnosis and treatment are available for the gastric cancer patients, however the malignancy is still the third leading cause of cancer related death in the world. Beside the genetic and environmental factors, epigenetic alterations are also involved in the emergence of gastric cancer. Epigenetics alterations are heritable changes which regulate gene expression without occurring changes in DNA sequence. Epigenetic changes mostly include DNA methylation, histon post translational modifications, chromatin remodeling and non coding RNAs. Among the mentioned epigenetic modifications, DNA methylation is a major epigenetic process that plays a key role in different stages of evolution and cancer development. In this review, we address all types of related epigenetic modifications in gastric cancer by focus on DNA methylation by reviewing the recent literatures. Understanding of molecular mechanisms of epigenetics alterations in gastric cancer development helps researchers to identify new epigenetic drugs against the malignancy.
Global citizenship education: An educational theory of the common good? A conversation with Carlos Alberto Torres
Venue: Policy Futures in Education
Year: 2019

This paper presents a remarkable conversation with Carlos Alberto Torres about Global Citizenship Education (GCE) in relation to research, teaching, and learning in the USA. Torres is a Distinguished Professor of Education, UNESCO UCLA Chair on Global Learning and Global Citizenship Education, UCLA and Founding Director of the Paulo Freire Institute (Sao Paulo; Buenos Aires; UCLA) In this dialogue, he artfully blends together theoretical and practical perspectives on global citizenship focused on the connection between culture and power, the interrelationships of economic, political and cultural spheres in the modern educational institutions in the context of growing internationalization and globalization of education offering an exclusive portrait of GCE as a site of permanent pursuit for social justice. Our tete a tete is presented as a pedagogical tool for discussion that invites educators to reflect critically on the possible origins and implications of GCE discourses they are exposed to. It is designed with the intent to contribute toward the possibility of imagining a "yet to come" post colonial, critical transformative, and value creating GCE curriculum beyond a Westernized, market oriented and apolitical practices toward a more sustainable paradigm based on principles of mutuality and reciprocity, or as Torres calls it in this discussion "el buen vivir" a concept that portrays a way of acting in society that is community centric, ecologically balanced, and culturally sensitive, in the ongoing construction of a more just and peaceful world.