nils-herrmann/clean_scirepeval huggingface dataset:
Building a Large scale Multimodal Knowledge Base System for Answering Visual Queries
Year: 2015

The complexity of the visual world creates significant challenges for comprehensive visual understanding. In spite of recent successes in visual recognition, today's vision systems would still struggle to deal with visual queries that require a deeper reasoning. We propose a knowledge base (KB) framework to handle an assortment of visual queries, without the need to train new classifiers for new tasks. Building such a large scale multimodal KB presents a major challenge of scalability. We cast a large scale MRF into a KB representation, incorporating visual, textual and structured data, as well as their diverse relations. We introduce a scalable knowledge base construction system that is capable of building a KB with half billion variables and millions of parameters in a few hours. Our system achieves competitive results compared to purpose built models on standard recognition and retrieval tasks, while exhibiting greater flexibility in answering richer visual queries.
Assessment of the cyclic strain approach for evaluating liquefaction triggering
Year: 2018

The cyclic strain approach was proposed in the 1980s as a potential alternative to the stress based simplified liquefaction evaluation procedure. However, despite its fundamental basis and many positive attributes, it has not been embraced by practice. One reason for this may be the need to perform cyclic laboratory tests on undisturbed/reconstituted samples to develop a relationship among excess pore water pressure, cyclic strain amplitude, and number of applied strain cycles. Herein an alternative implementation of the strain based procedure is proposed that circumvents this requirement, using a strain based pore pressure generation model in lieu of laboratory test data. To assess the efficacy of the alternative implementation, several hundred small strain shear wave velocity (Vs) and Standard Penetration Test (SPT) field liquefaction case histories are evaluated. The results are compared with both field observations and with predictions from the stress based procedures. It was found that the stress based approach yielded considerably more accurate predictions compared to the cyclic strain approach. One likely reason for this is the strain based procedure's inherent and potentially fatal limitation of ignoring the decrease in soil stiffness due to excess pore pressure when representing the earthquake loading in terms of shear strain amplitude and number of equivalent cycles.
Les parametres humains de la performance de l'entreprise Le cas de l'entreprise Algerienne NAFTAL Tlemcen
Year: 2016

Ce travail cherche sur la question de l'impact du facteur humain sur la performance de l'organisation ou de l'entreprise a travers les quatre facteurs a savoir le leadership, la motivation, la culture de l'entreprise, et les competences, l'objectif, est d'essayer de repondre a la question suivante: Quel est l'impact du facteur humain sur l'entreprise, qu'est ce que rapporte ce dernier a l'entreprise d'une facon efficace, concrete, tangible et significative? Nous avons etudie ces facteurs en detail, et nous sommes parvenus a ce que la GRH devrait prendre en compte ces facteurs et leurs fonctionnent, et les prendre comme part dans le cadre d'une politique de gestion pour atteindre des performances optimales. Nous avons parle tout au long de ce travail sue deux elements l'entreprise et la ressource humaine ces deux elements composent une relation d'influence reciproque. Il fallait faire la lumiere sur cette relation pour preciser que la ressource humaine s'englobe et se voie plus efficace dans des parametres qui influence les resultats de l'entreprise. La ressource humaine est une ressource precieuse, elle ne doit pas etre delaisse sans appui ni prise en charge.
The microbiome quality control project: baseline study design and future directions
Venue: Genome Biology
Year: 2015

Microbiome research has grown exponentially over the past several years, but studies have been difficult to reproduce across investigations. Relevant variation in measurements between laboratories, from a variety of sources, has not been systematically assessed. This is coupled with a growing concern in the scientific community about the lack of reproducibility in biomedical research. The Microbiome Quality Control project (MBQC) was initiated to identify sources of variation in microbiome studies, to quantify their magnitudes, and to assess the design and utility of different positive and negative control strategies. Here we report on the first MBQC baseline study project and workshop.
Microwave assisted green synthesis, characterization and adsorption studies on metal oxide nanoparticles synthesized using Ficus Benghalensis plant leaf extracts
Year: 2020

Environmentally friendly synthesis of metal oxide nanoparticles is a worthwhile contribution to the science and technology field. The conversion of metal salts into metal oxides using plant extract has attracted considerable attention from researchers due to the simplicity of the process. Special attention has been provided to the green synthesis of metal oxide nanoparticles using easily available plants with an eco friendly system compared to other conventional methods. The advantages of green synthesis are minimizing the by product and thus eliminating contaminants and using imperishable and lower risk components. The biological diversity of plant extracts, for instance, as well as the accessibility to numerous phytochemicals in various parts of the plants is an important aspect in considering plants for integrating nanoparticles. An attempt has been made to synthesize metal oxides such as Fe3O4, CeO2 and ZnO using Ficus benghalensis plant leaf extract. The structure and morphology of the as prepared metal oxide samples were studied using powder X ray diffraction and scanning electron microscopy techniques. Fourier transform infrared spectroscopy study was undertaken to study the bonding in the metal oxide samples. Moreover, morphology and particles size of the above samples was studied by using transmission electron microscopy. Energy dispersive X ray analysis study was undertaken to know the formation of metal oxides. Furthermore, the adsorption study of heavy metal ions (Pb2+ Hg2+ on metal oxides was performed to know the adsorbent nature of metal oxides.
Estudio de las consecuencias del desarrollo turistico en la zona indigena maya en el sur de Mexico
Year: 2020

El presente trabajo de investigacion "Estudio de las consecuencias del desarrollo turistico en la zona indigena maya en el sur de Mexico" tiene como finalidad responder diferentes interrogantes acerca de la realidad contemporanea de la civilizacion maya: ?Como el nuevo desarrollo ha impactado la forma de vida de las comunidades indigenas mayas en el sur de Mexico? ?Cuales son los aportes positivos del turismo para estos pueblos? ?Cual es el impacto negativo en las nuevas generaciones de estos grupos? ?Es en verdad un turismo sostenible o ecoturismo lo que se desarrolla en las comunidades mayas? ?Cual es la opinion del pueblo maya a todo esto? ?En verdad los apoyos gubernamentales mejoran la vida de los indigenas? ?Que tantos estudios se tienen sobre el impacto turistico en la vida de los indigenas? Para poder responder estas interrogantes, la investigacion no se limito solamente a una investigacion bibliografica, sino que, a sido enriquecida con diferentes entrevistas a turoperadores turisticos e integrantes de los grupos etnicos mayas de la region de la selva Lacandona, en Chiapas, Mexico.
Exact Parametric Solutions for the Intersections of Quadric Surfaces Using MAPLE
Venue: MC
Year: 2019

Quadric surfaces play a very important role in solid geometric modeling and in the design and fabrication of mechanical and industrial parts. Solving the intersection curve between two quadrics is a fundamental problem in computer graphics and solid modeling. We present a new analytical method for parameterizing the intersection curve of two quadrics, which are represented by implicit quadratic equations in 3D. The method is based on the observation that the intersection curve of two quadrics comprises all the points that satisfy a parametric second order polynomial system. We show that the computation of the intersection problem of two general quadrics can be reduced to the solution of quartic polynomials. In particular, we show that the intersection problem of two quadric surfaces that are expressed in canonical forms can be reduced to the solution of quadratic polynomials. All the exact parametric solutions for the intersections of quadric surfaces are implemented in the Computer Algebra System MAPLE. Several previously published test problems of the intersection of quadric surfaces are presented and discussed.
Constant Deposit Multiparty Lotteries on Bitcoin
Venue: Financial Cryptography Workshops
Year: 2017

An active research trend is to exploit the consensus mechanism of cryptocurrencies to secure the execution of distributed applications. In particular, some recent works have proposed fair lotteries which work on Bitcoin. These protocols, however, require a deposit from each player which grows quadratically with the number of players. We propose a fair lottery on Bitcoin which only requires a constant deposit.
Towards augmented reality manuals for industry 4.0: A methodology
Venue: Robotics and Computer Integrated Manufacturing
Year: 2019

Reality (AR) is one of the most promising technology for technical manuals in the context of Industry 4.0. However, the implementation of AR documentation in industry is still challenging because specific standards and guidelines are missing. In this work, we propose a novel methodology for the conversion of existing "traditional" documentation, and for the authoring of new manuals in AR in compliance to Industry 4.0 principles. The methodology is based on the optimization of text usage with the ASD Simplified Technical English, the conversion of text instructions into 2D graphic symbols, and the structuring of the content through the combination of Darwin Information Typing Architecture (DITA) and Information Mapping (IM) We tested the proposed approach with a case study of a maintenance manual of hydraulic breakers. We validated it with a user test collecting subjective feedbacks of 22 users. The results of this experiment confirm that the manual obtained using our methodology is clearer than other templates.
Ride performance of a high speed rail vehicle using controlled semi active suspension system
Year: 2017

The rail wheel interaction in a rail vehicle running at high speed results in large amplitude vibration of carbody that deteriorates the ride comfort of travellers. The role of suspension system is crucial to provide an acceptable level of ride performance. In this context, an existing rail vehicle is modelled in vertical, pitch and roll motions of carbody and bogies. Additionally, nonlinear stiffness and damping parameters of passive suspension system are defined based on experimental data. In the secondary vertical suspension system, a magneto rheological (MR) damper is included to improve the ride quality and comfort. The parameters of MR damper depend on the current, amplitude and frequency of excitations. At different running speeds, three semi active suspension strategies with MR damper are analysed for periodic track irregularity and the resulting performance indices are juxtaposed with the nonlinear passive suspension system. The disturbance rejection and force tracking damper controller algorithms are applied to control the desired force of MR damper. This study reveals that the vertical vibrations of a vehicle can be reduced significantly by using the proposed semi active suspension strategies. Moreover, it naturally results in improved ride quality and passenger's comfort in comparison to the existing passive system.
The burden of rare diseases
Venue: American journal of medical genetics. Part A
Year: 2019

The subject of rare disease numbers is rife with misconceptions, not just in websites and other layman's literature, but also in the medical literature. Various websites mention numbers that are not validated by any solid data, while in turn the medical literature cites the aforementioned websites as sources, thus perpetuating a number of myths about rare diseases and their burden. We review the existing literature on rare disease numbers, in an attempt to demystify the subject. Specifically, we summarize data pertaining to: (a) known number and cumulative prevalence of rare diseases; (b) rare disease associated mortality; (c) rare disease associated morbidity, including numbers on health care services related to rare diseases; and (d) orphan drug numbers.
4Ps: A Strategy to Secure Customers' Loyalty via Customer Satisfaction
Year: 2015

This paper explores the role of Marketing mix strategy and its overall positive or negative impact on customer's satisfaction and loyalty. Product, price, place and promotion variables need to be managed by understating psychological traits of customers buying nature. The literary discussion highlights that customer expectations with regards to product quality, price, and product accessibility are managed by communication techniques using advertising agents. The discussion proceeds in analytical style using previous theory as base point to evaluate the role of marketing mix in relation with customer satisfaction turning into loyalty. Inductive data collection approach has proved a great help to extract gist of past research results. A large proportion of data has been gathered from secondary resources including journals, books and old research papers. The results show that all four aspects of marketing mix are equally important and any imbalance among them can damage overall results. Customers' buying intentions are greatly affected by his/her expectations in context of a product quality, price, and product accessibility. The relationship between customer satisfaction and loyalty depends on the elimination of perception gap, service gap, operational gap and behavioural gap that needs to be managed by giving focused attention to these matters. This paper reviews prior literature and proposes to think carefully to use marketing mix strategy to met customer expectations by eliminating any communication or perception gaps that further extend customer loyalty.
On the Assessment of Functional Connectivity in an Immersive Brain Computer Interface During Motor Imagery
Venue: Frontiers in Psychology
Year: 2020

New trends on brain computer interface (BCI) design are aiming to combine this technology with immersive virtual reality in order to provide a sense of realism to its users. In this study, we propose an experimental BCI to control an immersive telepresence system using motor imagery (MI) The system is immersive in the sense that the users can control the movement of a NAO humanoid robot in a first person perspective (1PP) i.e. as if the movement of the robot was his/her own. We analyze functional brain connectivity between 1PP and 3PP during the control of our BCI using graph theory properties such as degree, betweenness centrality, and efficiency. Changes in these metrics are obtained for the case of the 1PP, as well as for the traditional third person perspective (3PP) in which the user can see the movement of the robot as feedback. As proof of concept, electroencephalography (EEG) signals were recorded from two subjects while they performed MI to control the movement of the robot. The graph theoretical analysis was applied to the binary directed networks obtained through the partial directed coherence (PDC) In our preliminary assessment we found that the efficiency in the a brain rhythm is greater in 1PP condition in comparison to the 3PP at the prefrontal cortex. Also, a stronger influence of signals measured at EEG channel C3 (primary motor cortex) to other regions was found in 1PP condition. Furthermore, our preliminary results seem to indicate that a and b brain rhythms have a high indegree at prefrontal cortex in 1PP condition, and this could be possibly related to the experience of sense of agency. Therefore, using the PDC combined with graph theory while controlling a telepresence robot in an immersive system may contribute to understand the organization and behavior of brain networks in these environments.
Crimean Congo Hemorrhagic Fever Virus Activates Endothelial Cells
Venue: Journal of Virology
Year: 2011

Crimean Congo hemorrhagic fever virus (CCHFV) causes viral hemorrhagic fever with high case fatality rates and is geographically widely distributed. Due to the requirement for a biosafety level 4 (BSL 4) laboratory and the lack of an animal model, knowledge of the viral pathogenesis is limited. Crimean Congo hemorrhagic fever (CCHF) is characterized by hemorrhage and vascular permeability, indicating the involvement of endothelial cells (ECs) The interplay between ECs and CCHFV is therefore important for understanding the pathogenesis of CCHF. In a previous study, we found that CCHFV infected monocyte derived dendritic cells (moDCs) activated ECs; however, the direct effect of CCHFV on ECs was not investigated. Here, we report that ECs are activated upon infection, as demonstrated by upregulation of mRNA levels for E selectin, vascular cell adhesion molecule 1 (VCAM1) and intercellular adhesion molecule 1 (ICAM1) Protein levels and cell surface expression of ICAM1 responded in a dose dependent manner to increasing CCHFV titers with concomitant increase in leukocyte adhesion. Furthermore, we examined vascular endothelial (VE) cadherin in CCHFV infected ECs by different approaches. Infected ECs released higher levels of interleukin 6 (IL 6) and IL 8; however, stimulation of resting ECs with supernatants derived from infected ECs did not result in increased ICAM1 expression. Interestingly, the moDC mediated activation of ECs was abrogated by addition of neutralizing tumor necrosis factor alpha (TNF a) antibody to moDC supernatants, thereby identifying this soluble mediator as the key cytokine causing EC activation. We conclude that CCHFV can exert both direct and indirect effects on ECs.
Tindak Tutur Representatif Pada Tajuk Rencana Dalam Surat Kabar Solopos Edisi Januari 2019
Year: 2019

The form of communication carried out by the community is thwe utterance of every meaning in a speech that has an implict or explicit meaning. Utterence raises an influence on what is said by the parner to do something called a speech act. Pragmatics examines the intent of speaker in telling a particular lingual unit in a language. The aim of this study (1) describe the form of representative speech acts stating, informing something, suggest, explain and show in the editorial in the 2019 edition of the solopos newspaper, (2) describe the function of representative speech acts collaborative informing, convival suggesting, and competitively demanding in the editorial in the 2019 edition of the solopos newspaper. This reseach is a qualitative. Reseach collection af research obtained from the January 2019 issue of Solopos newspaper. retrivel of data sources from the solopos edition of the published newspaper everyday there are 21 editorials analyzed according to the form and function of representatif speech acts. The type research used is qualitative research. The research data is the sebtence contained in the editorial. The result of the study are representative speech acts to 1 declare, 12 inform something, 3 suggest, 4 explain, and 5 indicating. Collaborative function 6 inform, konvival 4 suggests and 8 competitively demands.
CD4+CXCR5+ follicular helper T cells in salivary gland promote B cells maturation in patients with primary Sjogren's syndrome.
Venue: International journal of clinical and experimental pathology
Year: 2014

To examine amount of CD4+CXCR5+Tfh cells and B cells subsets in salivary gland and peripheral blood from patients with primary Sjogren's syndrome (pSS) and to analyze whether the frequency of CD4+CXCR5+Tfh cells is associated with pSS pathologic process.  The percentages of CD4+CXCR5+Tfh cells and B cell subsets were examined by flow cytometry. B lymphocyte chemoattraetant (BLC; also called CXCL13) IL 21, IL 6 from the serum of pSS patients was assessed by polymerase chain reaction enzyme linked immunosorbent assay (ELISA) RESULTS The percentages of CD4+CXCR5+Tfh cells in peripheral blood were increased in pSS patients, but decreased after treatment with glucocorticoid and/or immunosuppressive drugs. Abnormal B cell subsets appeared in salivary and peripheral blood of pSS patients. The frequency of salivary CD4+CXCR5+Tfh cells was positively correlated with CD19+CD27+ memory B cells and CD19+CD27high plasma cells. Also increase of salivary CD19+CD27high plasma cells was positively associated with serum ANA titer of pSS patients.  CD4+CXCR5+Tfh cells are significantly increased in salivary and peripheral blood in pSS patients with aberrant CD19+CD27+ memory B cells and CD19+CD27high plasma cells, suggesting that CD4+CXCR5+Tfh cells may contribute to the pathogenesis of pSS by promoting the maturation of B cells.
Facile synthesis of Co Fe B P nanochains as an efficient bifunctional electrocatalyst for overall water splitting.
Venue: Nanoscale
Year: 2019

Design of cost effective bifunctional electrocatalysts for both the oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) is vital for developing hydrogen energy for the future. Herein, a cost effective phosphorus doped Co Fe B material with chain like structure (denoted as Co1 Fe1 B P) is reported as an efficient and novel bifunctional electrocatalyst for the OER and HER, and was produced via a facile water bath synthesis and subsequent phosphorization. For the OER, the as prepared Co1 Fe1 B P nanochains require an extremely low overpotential of about 225 mV at 10 mA cm 2 and possess a small Tafel slope of 40 mV dec 1 in alkaline media. Impressively, the HER properties of Co1 Fe1 B P nanochains are superior to those of P free Co Fe B in terms of overpotential at 10 mA cm 2 (173 mV vs. 239 mV) and kinetic Tafel slope (96 mV dec 1vs. 105 mV dec 1) The synergetic effect between Co Fe B and doped P is mainly responsible for the satisfactory bifunctional performance, while the one dimensional (1D) chain like structure endows Co1 Fe1 B P with abundant catalytically active sites that enhance the atom utilization efficiency. Moreover, the developed Co1 Fe1 B P nanochains can be simultaneously utilized as both the cathode and anode for overall water splitting, which requires a cell voltage of only 1.68 V to deliver 10 mA cm 2. This work provides a feasible and promising protocol to realize metal borides as efficient electrocatalysts in energy related applications.