nils-herrmann/clean_scirepeval huggingface dataset:
Exploration in Reinforcement Learning with Deep Covering Options
Venue: ICLR
Year: 2020

While many option discovery methods have been proposed to accelerate exploration in reinforcement learning, they are often heuristic. Recently, covering options was proposed to discover a set of options that provably reduce the upper bound of the environment's cover time, a measure of the difficulty of exploration. Covering options are computed using the eigenvectors of the graph Laplacian, but they are constrained to tabular tasks and are not applicable to tasks with large or continuous state spaces. We introduce deep covering options, an online method that extends covering options to large state spaces, automatically discovering task agnostic options that encourage exploration. We evaluate our method in several challenging sparse reward domains and we show that our approach identifies less explored regions of the state space and successfully generates options to visit these regions, substantially improving both the exploration and the total accumulated reward.
Joint Detection and Identification Feature Learning for Person Search
Venue: 2017 IEEE Conference on Computer Vision and Pattern Recognition (CVPR)
Year: 2017

Existing person re identification benchmarks and methods mainly focus on matching cropped pedestrian images between queries and candidates. However, it is different from real world scenarios where the annotations of pedestrian bounding boxes are unavailable and the target person needs to be searched from a gallery of whole scene images. To close the gap, we propose a new deep learning framework for person search. Instead of breaking it down into two separate tasks&#x2014;pedestrian detection and person re identification, we jointly handle both aspects in a single convolutional neural network.  Experiments show that our framework outperforms other separate approaches, and the proposed OIM loss function converges much faster and better than the conventional Softmax loss.
Zoon balanitis does it exist?
Venue: Journal of the European Academy of Dermatology and Venereology JEADV
Year: 2019

In the August issue of JEADV, Piaserico et al. report the results of a study of "Zoon Balanitis in men" (ZB) It is gratifying to encounter in the literature publications concerning the oft neglected domain of male genital dermatoses and it is laudable of colleagues to take a clinical and investigative interest. However, in my opinion, this paper is significantly flawed and sadly therefore fails usefully to advance our understanding of the topic.
Interactuar con los estudiantes en clase con soporte TIC
Year: 2016

espanolLa interaccion con los estudiantes en clase, a traves de recursos online, esta especialmente indicada cuando en nuestra clase incorporamos metodologias activas y centradas en el estudiante. Con la incorporacion de estos recursos, incorporamos tambien otras tecnologias como podrian ser la gamificacion, los dispositivos moviles, el BYOD, Esto se da hoy en dia desde la educacion primaria hasta la universidad, compartiendo asi las mismas herramientas en distintos niveles educativos. Nos centraremos especialmente en los entornos en que se trabaja en el modelo de Flipped Classroom. El objetivo de esta comunicacion es analizar las caracteristicas de un conjunto de herramientas online que se utilizan para interactuar en clase con los estudiantes con la finalidad de: recoger opiniones, formular preguntas, evaluar conocimientos, etc de una manera mas eficiente, dinamica y atractiva. Se han agrupado para su analisis las herramientas en dos conjuntos, asi tendriamos un primer grupo con tres herramientas que son, seguramente, las mas usadas.  Kahoot, Socrative y Peardeck. Y un segundo conjunto que incluiria: las encuestas de twitter, la interaccion usando las presentaciones de Google Apps, y las aplicaciones para crear formularios. El analisis recoge sus caracteristicas principales de uso y las experiencias recogidas en clase. EnglishStudents interaction in the classroom using online resources, is particularly appropriate when our class incorporates active and student centred methodologies. In addition to these resources, we also incorporate other technologies such as the gamification, mobile devices, BYOD, etc. This occurs nowadays from primary school to university, sharing the same tools in different educational levels. We will especially focus on environments where Flipped Classroom approach is used. The purpose of this experience is to analyse the characteristics of several online tools used to interact in class with students. Those tools include surveys, Q&A, knowledge assessment, etc. allowing a more efficient, dynamic and attractive interaction in class. Two types of online tools have been considered in this experience. The first one includes three of the most commonly used: Kahoot, Socrative and Peardeck. The second one includes: twitter polls, interaction using Google Apps presentations and applications to create forms. The analysis is based on the main use characteristics and experiences in class.
Research on the Problems of Internal Control in Accounting Computerization
Year: 2018

First, by analyzing the changes in the internal control of the enterprise since the implementation of the accounting computerization, this paper discusses the problems of internal control of enterprises under the environment of accounting computerization. Then, on the basis of discussing the existing problems of internal control in the environment of accounting computerization, the corresponding measures are put forward from three aspects, such as the continuous improvement of various related systems, the corresponding measures to play an active role in financial management and the strengthening of the basic management of Finance and accounting.
Experimental investigation of heat transfer enhancement in pool boiling using novel Ag/ZnO hybrid nanofluids
Venue: Journal of Thermal Analysis and Calorimetry
Year: 2020

The present study aims at investigating the enhancements in thermal properties, CHF and HTC of novel Ag/ZnO hybrid nanofluid at various concentrations. A cylindrical copper test piece of 20 mm diameter was used as a heated surface. Stable nanofluids were prepared by dispersing the hybrid nanoparticles through ultra sonication process at three different volume concentrations O 0.02% 0.06% and 0.1% The thermal conductivity of the hybrid nanofluids was found to be 32% higher at 45 degC when compared with DI water. During pool boiling experimentation an increase in concentration led to increased heat transfer coefficient (HTC) and critical heat flux (CHF) Maximum values of CHF and HTC were found to be 65.51% and 179.92% respectively, for O 0.1% when compared with base fluid, i.e. DI water. Also, any further increase in volume concentration beyond 0.1% deteriorated the boiling heat transfer.
Quantify the quantitative easing: Impact on bonds and corporate debt issuance
Year: 2020

This paper studies the impact of the European Central Bank's (ECB) Corporate Sector Purchase Programme (CSPP) announcement on prices, liquidity, and debt issuance in the European corporate bond market using a data set on bond transactions from Euroclear. I find that the quantitative easing (QE) programme increased prices and liquidity of bonds eligible to be purchased substantially. Bond yields dropped on average by 30 basis points (bps) (8% after the CSPP announcement. Tri party repo turnover rose by 8.15 million USD (29% and bilateral turnover went up by 7.05 million USD (72% Bid ask spreads also showed significant liquidity improvement in eligible bonds. QE was successful in boosting corporate debt issuance. Firms issued 2.19 billion EUR (25% more in QE eligible debt after the CSPP announcement, compared to other types of debt. Surprisingly, corporates used the attracted funds mostly to increase dividends. These effects were more pronounced for longer maturity, lower rated bonds, and for more credit constrained, lower rated firms.
Seroprevalencia de infeccion por Helicobacter pylori en poblacion adulta de Lima, Peru 2017
Year: 2017

Conocer la seroprevalencia de infeccion por Helicobacter pylori en poblacion adulta de Lima, Peru 2017.Materiales y metodos: Estudio descriptivo, prospectivo, transversal. Poblacion conformada por voluntarios mayores de 18 anos, de ambos sexos, con o sin molestias gastroenterologicas generales. Campana de despistaje realizada en los distritos de Magdalena y Chorrillos de la ciudad de Lima, Peru en el mes de enero del 2017. Para el diagnostico se utilizo la prueba rapida OnSite H. pylori Ab Combo Rapid Test CE de CTK Biotech. Se evaluo a 140 pacientes, edad media 36.6 anos, 22.1% de sexo masculino y 77.9% de sexo femenino. La seroprevalencia para Helicobacter pylori fue 63.6%.Conclusiones: Nosotros concluimos que la infeccion por Helicobacter pylori es frecuente en el area de la ciudad de Lima, sin diferencia entre genero y edad.
Student Involvement theory a way we might design for learning at York St John.
Year: 2016

This session addresses Theme A: Engaging students in learning. It introduces the work of Alexander Astin, who offers Student Involvement as a developmental theory for HE (1999) Student engagement focuses on a correlation between improved learning and student motivation. Astin argues that motivation is concerned with feelings rather than behaviours; he argues for differentiating motivation from involvement. My own research interests include a fascination with the, slippery, concept of learning. I am drawn to the work of Etienne Wenger (1998: 225 229; original emphasis) who argues that learning moves on its own terms: It slips through the cracks; it creates its own cracks. Learning happens, design or no design..Learning cannot be designed, but it can be designed for that is facilitated or frustrated. The aim of this TLC is to prompt discussion around how we can design for learning at York St John University by developing our understanding of "connected learning" (Kinkead, 2003: 9) Astin's theory is one way we can do this.
Hidroksiapatit dari Tulang Ikan Tuna Sirip Kuning (Tunnus albacores) dengan Metode Presipitasi
Year: 2017

Indonesia as one of the biggest tuna fish produsers in the world, produce tuna fish bones large enough. Since tuna fish bone contain high calcium it is potentially to be the raw material of hydroxyapatite. Hydroxyapatite are inorganic compounds constituent of bones and teeth has the moleculer formula Ca 5 (PO 4 3 OH. Synthesis of hydroxyapatite can be done with precipitation method through tuna fish bone calcination process at the temperature 900degC for 5 hours to obtain calcium compounds in the form of calcium oxide. Calcium wich has been obtained added phosphoric acid 0,6 M with flow rate/rapid 1 mL/minute. Controlled synthesis process parameters are pH 10 of solution. Yield of hydroxyapatite generated after synthesis with of the precipitation time 12 hours are of 91.15% hydroxyapatite product obtained was analyzed by FTIR(Fourier Transform Infrared) and XRD (X Ray Diffraction) FTIR analysis indicate the presence of OH groups, PO 4 and CO 3 Based on the resulting diffraction of XRD analysis, crystallite size obtained each of 211.29 nm structure is hexagonal. Scherrer method was used to obtain crystallite size.
A Framework for Opinion Mining System with Design Pattern
Venue: 2016 International Computer Symposium (ICS)
Year: 2016

Due to the sheer volume of opinion rich web resources such as discussion forum, review sites, blogs, and news corpora available in digital form, much of the current research is focusing on the area of sentiment analysis. People are intended to develop a system that can identify and classify opinion or sentiment as represented in an electronic text. An accurate method for predicting sentiments could enable us, to extract opinions from the internet and predict on line customer's preferences, which could prove valuable for economic or marketing research. In this paper we present a framework for opinion mining in Traditional Chinese called FOM (Framework of Opinion Mining) to collect unstructured articles in the popular web site and analyse the opinion and sentiment in the semi automatic way. The framework is developed by objected oriented design patterns, such as to support the flexibility and maintainability. With the FOM framework, new analysis algorithm can be easily replaced and integrated in a new application. A flood predication application based on facebook text in Taiwan will be demonstrated in this paper.
Structures of influenza A virus RNA polymerase offer insight into viral genome replication
Venue: Nature
Year: 2019

Influenza A viruses are responsible for seasonal epidemics, and pandemics can arise from the transmission of novel zoonotic influenza A viruses to humans1,2. Influenza A viruses contain a segmented negative sense RNA genome, which is transcribed and replicated by the viral RNA dependent RNA polymerase (FluPolA) composed of PB1, PB2 and PA subunits3 5. Although the high resolution crystal structure of FluPolA of bat influenza A virus has previously been reported6, there are no complete structures available for human and avian FluPolA. Furthermore, the molecular mechanisms of genomic viral RNA (vRNA) replication which proceeds through a complementary RNA (cRNA) replicative intermediate, and requires oligomerization of the polymerase7 10 remain largely unknown. Here, using crystallography and cryo electron microscopy, we determine the structures of FluPolA from human influenza A/NT/60/1968 (H3N2) and avian influenza A/duck/Fujian/01/2002 (H5N1) viruses at a resolution of 3.0 4.3 A, in the presence or absence of a cRNA or vRNA template. In solution, FluPolA forms dimers of heterotrimers through the C terminal domain of the PA subunit, the thumb subdomain of PB1 and the N1 subdomain of PB2. The cryo electron microscopy structure of monomeric FluPolA bound to the cRNA template reveals a binding site for the 3' cRNA at the dimer interface. We use a combination of cell based and in vitro assays to show that the interface of the FluPolA dimer is required for vRNA synthesis during replication of the viral genome. We also show that a nanobody (a single domain antibody) that interferes with FluPolA dimerization inhibits the synthesis of vRNA and, consequently, inhibits virus replication in infected cells. Our study provides high resolution structures of medically relevant FluPolA, as well as insights into the replication mechanisms of the viral RNA genome. In addition, our work identifies sites in FluPolA that could be targeted in the development of antiviral drugs.Structures of RNA polymerase of human and avian influenza A viruses reveal that the interface of the RNA polymerase dimer is required to initiate viral RNA synthesis in viral genome replication.
Efficient frequency controllers for autonomous two area hybrid microgrid system using social spider optimiser
Year: 2017

In this study, an efficient load frequency controller (LFC) for standalone two area hybrid microgrid system (HmGS) is addressed. Social spider optimiser (SSO) is applied to fine tune the proposed proportional integral derivative (PID) controllers by generating their optimal settings. The integral time multiplied summation of absolute deviations and the gains of PID controllers define the fitness function and control variables, respectively. The performance of the proposed SSO based method is demonstrated on an isolated HmGS complete with variety of energy storage systems under number of scenarios. The scenarios include load fluctuations, variations in wind speed, and sun irradiance employing real site measurements. In this study, photovoltaic generating arrays and wind turbine generators are not participating in system frequency regulations due the proposal of their maximum power tracking operation strategy. The signatures of time domain dynamic responses and cropped numerical results ascertain that the proposed SSO based LFC scheme is promising in diminuting the signal deviations and in short time. Further validations for cropped results produced by SSO are made compared with powerful optimisation tool such as genetic algorithm which signify the tuned PID gains.
Stereotactic Radiosurgery With or Without Whole Brain Radiation Therapy for Limited Brain Metastases: A Secondary Analysis of the North Central Cancer Treatment Group N0574 (Alliance) Randomized Controlled Trial.
Venue: International journal of radiation oncology, biology, physics
Year: 2017

To determine whether whole brain radiation therapy (WBRT) is associated with improved overall survival among non small cell lung cancer (NSCLC) patients with favorable prognoses at diagnosis.  In the N0574 trial, patients with 1 to 3 brain metastases were randomized to receive stereotactic radiosurgery (SRS) or SRS plus WBRT (SRS WBRT) with a primary endpoint of cognitive deterioration. We calculated diagnosis specific graded prognostic assessment (DS GPA) scores for NSCLC patients and evaluated overall survival according to receipt of WBRT and DS GPA score using 2 separate cut points =2.0 vs <2.0 and =2.5 vs <2.5) RESULTS A total of 126 NSCLC patients were included for analysis, with median follow up of 14.2 months. Data for DS GPA calculation were available for 86.3% of all enrolled NSCLC patients. Overall, 50.0% of patients had DS GPA score =2.0, and 23.0% of patients had DS GPA scores =2.5. The SRS and SRS WBRT groups were well balanced with regard to prognostic factors. The median survival according to receipt of WBRT was 11.3 months +WBRT) and 17.9 months WBRT) for patients with DS GPA =2.0 (favorable prognoses, P=.63; hazard ratio 0.86; 95% confidence interval 0.47 1.59) Median survival was 3.7 months +WBRT) and 6.6 months WBRT) for patients with DS GPA <2.0 patients (unfavorable prognoses, P=.85; hazard ratio 0.95; 95% confidence interval 0.56 1.62) Outcomes according to the receipt of WBRT and DS GPA remained similar utilizing DS GPA =2.5 as a cutoff for favorable prognoses. There was no interaction between the continuum of the DS GPA groups and WBRT on overall survival (P=.53)  We observed no significant differences in survival according to receipt of WBRT in favorable prognosis NSCLC patients. This study further supports the approach of SRS alone in the majority of patients with limited brain metastases.
Inadvertent Perioperative Hypothermia and Important Risk Factors during Major Abdominal Surgeries.
Venue: Journal of the College of Physicians and Surgeons Pakistan JCPSP
Year: 2020

A relation between inadvertent perioperative hypothermia and possible important risk factors during major abdominal surgeries was investigated.  Cross sectional descriptive study. PLACE AND DURATION OF STUDY Trakya University Hospital, Edirne, Turkey during 2016 2018.  Five hundred and twenty nine patients undergoing major abdominal surgey were divided into two groups depending on postoperative body core temperature (CTM) by the use of tympanic membrane measurement. Patients with a temperature of less than 36oC indicated hypothermia group; whereas, patients with a temperature between 36 and 37.5oC indicated normothermia group. The parameters that were considered as risk factors for hypothermia include; baseline characteristics, American Society of Anesthesiologists (ASA) status, comorbidities, operative type, duration of surgery, patient and operative room temperatures, intraoperative hemodynamic parameters, transfusion of fluids and packed red blood cells (PRBCs) labaratory data, and adverse events. Correlation between these parameters and inadvertent hypothermia was sought. A p value of less than 0.05 was considered statistically significant.  The risk factors that showed a correlation with hypothermia include: male gender, advanced age, high ASA scores, smoking, prolonged duration of operation, transfusion of fluids and PRBCs (p<0.05) In hypothermia group, duration of operation time was longer, need for transfusion was greater, hematocrit and hemoglobin values were lower than Normothermia Group of patients (p<0.05) Hypothermia was detected in 335 (63.3% of patients.  In this study, important risk factors for inadvertent hypothermia were found as; male gender, advanced age, high ASA scores, smoking, prolonged duration of operation, transfusion of fluids and/or PRBCs.
Transtorno do comportamento sexual compulsivo em um cenario de pandemia do covid 19: teorias para apreciacao da enfermagem
Year: 2020

Making a teoric discussion due to the perspective of nymphomania in a scenario of pandemy of Covid 19, allowing an information report as a facilitator in treatment of patients. It has to do with a narrative revision of aspect critical discursive, where the construction of research and formulation were based in relevant publications about the proposed theme, conceptualizing the disease and the factors that influence its diagnostic and treatment. Questionable in social aspects, religion and in the loss of sexual control in facing with the situation of de social isolement, needing the suitable treatment. The enhancement of exposition in media of people whom suffer from nynphomaniac disturbances can be negative, be reflected in sentiment of prejudices and uncertainties before the expansion of a pandemy, where medical appointments and given informations for qualified professionals are all by video calls, following the protocol of distancing, resulting in information exposition. It is highlighted that are few the publications about the subject, mainly at news perpectives before the pandemy of covid 19 hampering the compression.
Changes in the organizational structure of public health nurse service in the Republic of Croatia 1995 to 2012.
Venue: Collegium antropologicum
Year: 2014

Since 1996, after the privatization of primary health care, public health nurse (PHN) in Croatia remained employed within the health center, mainly responsible for the preventive care of the inhabitants from defined catchment's area. Before that time they were part of general practice teams. The main aim of the study was to investigate what are the trends in the organizational structure of PHN service in Croatia, from 1995 2012. The main source was the Croatian Health Service Yearbooks. The obtained results shows that they are college educated and mostly in full time jobs. The important findings are the lack of nurses and theirs regional differences. In highly demanding societies, with growing numbers of elderly, mental, social and economic problems, it will be worthy to consider the lower standard then 5 100 inhabitants per one PHN. Also, it should be taken into account to invest into the lowering of regional disparities.
Augmented Reality to Support Multi Criteria Decision Making in Building Retrofitting
Venue: 2020 IEEE International Conference on Systems, Man, and Cybernetics (SMC)
Year: 2020

In the decision making process, many complex problems may be difficult to deal with traditional approaches. In particular, in the construction sector, the large volume of information and the involvement of non expert users can make time consuming and inconsistent the choice. In this paper, a new method supported by the Augmented Reality (AR) is proposed to simplify and improve the decision making process. Such novel approach starts from the theoretical basis of the Analytic Hierarchy Process (AHP) and Simos Roy Figueira method (SRF) and develops a virtual environment to support the decision making. In particular the AR provide a large amount of visual information transforming a complex decision method in a user friendly tool. The proposed approach is applied in the field of building energy retrofitting in order to demonstrate its effectiveness. In particular, the goal of the analysis is the selection of the best panel, chosen from a set of experimental Precast Construction Panels, to improve the envelope performances of existing buildings. The decision involved both quantitative data (such as costs and thermal behavior) and qualitative data (such as the aesthetic impact)