nils-herrmann/clean_scirepeval huggingface dataset:
Spatio temporal and aspect features based sentiment analysis on customer reviews
Year: 2018

Online reviews are used as a decision support model for the consumers and feedback channel for the business organizations. Sentiment analysis techniques are employed to investigate online reviews. The sentiment expressed in review document is called as overall sentiment. Attribute level like and dislike factors are not represented in the overall sentiment estimation methods. The aspect level sentiment analysis model discovers the unique semantic fact of individual entity. The Aspect based sentiment analysis consists of two major tasks. They are, detect hidden semantic aspect from review document and identify finegrained sentiments for the aspect. Probabilistic topic models are used for aspect based sentiment analysis. The review documents and rating measures are analyzed to discover the semantic aspect level sentiments and overall sentiments. The probabilistic supervised joint aspect and sentiment model (SJASM) is employed to analyze the review documents in an unified framework. SJASM represents each review document in the form of opinion pairs. The aspect terms and opinion words are modeled for hidden aspect and sentiment detection. The overall sentimental rating is estimated with aspect and aspect level sentiments. The collapsed Gibbs sampling based inference method is used for parameter estimation of SJASM. The aspect distribution is used to select the parameters for the sentiment estimation. The review documents are classified into positive or negative sentiments. The collaborative sentiment assessment model (CSAM) integrates the aspect and spatio temporal features. The Bayesian nonparametric model is applied to automatically estimate the number of latent topics from review data. The hybrid indexing scheme combines the aspect and spatio temporal parameters to order the review documents. The recommendation process is build with aspect, location and time features.
Reduced quality and accelerated follicle loss with female reproductive aging does decline in theca dehydroepiandrosterone (DHEA) underlie the problem?
Venue: Journal of Biomedical Science
Year: 2013

Infertility, spontaneous abortion and conception of trisomic offspring increase exponentially with age in mammals but in women there is an apparent acceleration in the rate from about age 37. The problems mostly commonly occur when the ovarian pool of follicles is depleted to a critical level with age but are also found in low follicular reserve of other etiologies. Since recent clinical studies have indicated that dehydroepiandrosterone (DHEA) supplementation may reverse the problem of oocyte quality, this review of the literature was undertaken in an attempt to find an explanation of why this is effective?In affected ovaries, oxygenation of follicular fluid is low, ultrastructural disturbances especially of mitochondria, occur in granulosa cells and oocytes, and considerable disturbances of meiosis occur. There is, however, no evidence to date that primordial follicles are compromised. In females with normal fertility, pre antral ovarian theca cells respond to stimulation by inhibin B to provide androgen based support for the developing follicle. With depletion of follicle numbers, inhibin B is reduced with consequent reduction in theca DHEA. Theca cells are the sole ovarian site of synthesis of DHEA, which is both a precursor of androstenedione and an essential ligand for peroxisome proliferator activated receptor alpha (PPARa) the key promoter of genes affecting fatty acid metabolism and fat transport and genes critical to mitochondrial function. As well as inducing a plethora of deleterious changes in follicular cytoplasmic structure and function, the omega 9 palmitate/oleate ratio is increased by lowered activity of PPARa. This provides conditions for increased ceramide synthesis and follicular loss through ceramide induced apoptosis is accelerated.In humans critical theca DHEA synthesis occurs at about 70 days prior to ovulation thus effective supplementation needs to be undertaken about four months prior to intended conception; timing which is also suggested by successful interventions to date. In humans and primates that undergo adrenarche, the adrenal zona reticularis (ZR) is the major site of DHEA production, however this is also reduced with age. Concomitant loss in function of the ZR might account for the acceleration in the rate of aging seen in humans in the late thirties' age group.
Rapido: Scaling blockchain with multi path payment channels
Venue: Neurocomputing
Year: 2020

One of the fundamental problems that hinders the current blockchain systems for industrial use is scalability. Lightning Network has been proposed to address this challenge, which executes massive amount of transactions off chain via pre constructed payment channels, and only records the final state when a payment channel is closed. However, current Lightning Network heavily rely on the single path payment. When the payment value exceeds the deposit of each individual path, the customer has to close all the existing payment channels and construct a new one from scratch, which we term as the overload issue. In addition, the single path payment bears the inherent risk of sensitive information (e.g. payment value) leaking. In this paper, we propose a multi path off chain payment mechanism, termed Rapido which explicitly addresses the overload and privacy leaking issues by splitting and distributing payment to multiple paths. Specifically, a new smart contract, D HTLC, is equipped with Rapido to encode multi path payment protocol. We also theoretically prove that the VDP (Value Distributing Problem) is NP hard. Finally, extensive experiments show that our approach not only resolves the overload issue but also mitigates the skewness of payment channels. Quantitative results further reveal that with the restriction of no adding new payment channels, the success rate of Rapido is more than 3 times higher than that of the Lightning Network. The implementation will be released upon acceptance.
External stenting of saphenous vein bypass grafts does not affect intraoperative transit time flow measurement
Venue: Journal of Cardiothoracic Surgery
Year: 2015

Saphenous vein grafts (SVG) are the most commonly used conduits for coronary artery bypass operations (CABG) despite their sub optimal long term patency. External stenting of SVG (eSVS(r) mesh) was recently proposed to improve their long term patency. Transit time flow measurement (TTFM) is a well described method for intraoperative quality control for CABG.
Towards Better Integration of Surrogate Models and Optimizers
Venue: High Performance Simulation Based Optimization
Year: 2020

Surrogate Assisted Evolutionary Algorithms (SAEAs) have been proven to be very effective in solving (synthetic and real world) computationally expensive optimization problems with a limited number of function evaluations. The two main components of SAEAs are: the surrogate model and the evolutionary optimizer, both of which use parameters to control their respective behavior. These parameters are likely to interact closely, and hence the exploitation of any such relationships may lead to the design of an enhanced SAEA. In this chapter, as a first step, we focus on Kriging and the Efficient Global Optimization (EGO) framework. We discuss potentially profitable ways of a better integration of model and optimizer. Furthermore, we investigate in depth how different parameters of the model and the optimizer impact optimization results. In particular, we determine whether there are any interactions between these parameters, and how the problem characteristics impact optimization results. In the experimental study, we use the popular Black Box Optimization Benchmarking (BBOB) testbed. Interestingly, the analysis finds no evidence for significant interactions between model and optimizer parameters, but independently their performance has a significant interaction with the objective function. Based on our results, we make recommendations on how best to configure EGO.
The Post Coronavirus World in the International Tourism Industry: Application of the Theory of Planned Behavior to Safer Destination Choices in the Case of US Outbound Tourism
Venue: International journal of environmental research and public health
Year: 2020

The tourism industry has been seriously suffering from the coronavirus disease (COVID 19) crisis ever since its outbreak. Given this pandemic situation, the major aim of this study is to develop a conceptual framework that clearly explains the US international tourists' post pandemic travel behaviors by expanding the theory of planned behavior (TPB) By utilizing a quantitative process, the TPB was successfully broadened by incorporating the travelers' perceived knowledge of COVID 19, and it has been deepened by integrating the psychological risk. Our theoretical framework sufficiently accounted for the US tourists' post pandemic travel intentions for safer international destinations. In addition, the perceived knowledge of COVID 19 contributed to boosting the prediction power for the intentions. The associations among the subjective norm, the attitude, and the intentions are under the significant influence of the tourists' psychological risks regarding international traveling. The comparative criticality of the subjective norm is found. Overall, the findings of this study considerably enhanced our understanding of US overseas tourists' post pandemic travel decision making processes and behaviors.
Erasmus's Life of Origen: A New Annotated Translation of the Prefaces to Erasmus of Rotterdam's Edition of Origen's Writings (1536)
Year: 2016

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La tipificacion penal de la suplantacion de identidad en el uso de las redes sociales
Year: 2017

Se analiza la viabilidad del encaje penal en los delitos de falsedad de documento privado del art. 395 CP de la situacion por la que una persona se hace pasar por otra y crea en redes sociales en internet (twitter, Facebook, etc. o un blog para perjudicar a la persona bajo cuya apariencia se crea este archivo electronico con dano por los comentarios que sube en su perfil de redes sociales, a fin de conseguirle un deterioro publico de su imagen. Referencia al reciente Auto n.o 461/17 de 25 de mayo de 2017 de la Audiencia Provincial de Madrid que incardina en este tipo penal la creacion de perfiles ajenos en redes sociales.
Frequency Packing and Multiuser Detection for CPMs: How to Improve the Spectral Efficiency of DVB RCS2 Systems
Venue: IEEE Wireless Communications Letters
Year: 2013

We consider a frequency division multiplexed system where each user adopts a continuous phase modulation (CPM) and multiuser detection is employed at the receiver side. The spectral efficiency (SE) is used as a performance measure to compare, from an information theoretic point of view, different modulation formats. More precisely, we consider the new CPM formats recently included in the DVB RCS2 standard. We describe a framework for computing the information rate (IR) and the SE of such systems, and use it for optimizing the channel spacing between adjacent users and the CPM phase response. Our analysis reveals that modulation formats adopted in the DVB RCS2 standard are suboptimal in terms of SE, while if we allow multiuser detection excellent performance can be achieved by using simple binary formats and highly frequency packed signals. Furthermore, we consider practical schemes, where CPMs are serially concatenated with an outer code, and a low complexity multiuser receiver is employed, showing that the theoretical limits predicted by the IR analysis can be approached.
Adaptive Odometry and IMU Sensor Fusion for KUKA youBot Mobile Robot Using Analytical Time Update
Venue: 2019 IEEE 23rd International Conference on Intelligent Engineering Systems (INES)
Year: 2019

Odometry and inertial measurement units are fundamental components of modern vehicle localization systems along with the low sampling rate absolute position sensors like GPS and LIDAR. This paper considers their tight fusion and adaptive filtering methods to determine their bias and deviation online. The performance of CMAUKF (Covariance Matching based Adaptive Kalman Filter) and the WRWAUKF (Windowing and Random Weighting Adaptive Unscented Kalman Filter) is investigated via numerical simulations. Furthermore, a robot specific exact analytical formula is utilized in the time update step instead of applying the generic unscented transformation in order to decrease the computational cost of the methods.
Postoperative Abdominal Adhesions: Clinical Significance and Advances in Prevention and Management
Venue: Journal of Gastrointestinal Surgery
Year: 2017

Postoperative adhesions remain one of the more challenging issues in surgical practice. Although peritoneal adhesions occur after every abdominal operation, the density, time interval to develop symptoms, and clinical presentation are highly variable with no predictable patterns. Numerous studies have investigated the pathophysiology of postoperative adhesions both in vitro and in vivo. Factors such as type and location of adhesions, as well as timing and recurrence of adhesive obstruction remain unpredictable and poorly understood. Although the majority of postoperative adhesions are clinically silent, the consequences of adhesion formation can represent a lifelong problem including chronic abdominal pain, recurrent intestinal obstruction requiring multiple hospitalizations, and infertility. Moreover, adhesive disease can become a chronic medical condition with significant morbidity and no effective therapy. Despite recent advances in surgical techniques, there is no reliable strategy to manage postoperative adhesions. We herein review the pathophysiology and clinical significance of postoperative adhesions while highlighting current techniques of prevention and treatment.
Biomimetic two dimensional nanozymes: synthesis, hybridization, functional tailoring, and biosensor applications.
Venue: Journal of materials chemistry. B
Year: 2020

Biological enzymes play important roles in mediating the biological reactions in vitro and in vivo due to their high catalytic activity, strong bioactivity, and high specificity; however, they have also some disadvantages such as high cost, low environmental stability, weak reusability, and difficult production. To overcome these shortcomings, functional nanomaterials including metallic nanoparticles, single atoms, metal oxides, alloys, and others have been utilized as nanozymes to mimic the properties and functions of natural enzymes. Due to the development of the synthesis and applications of two dimensional (2D) materials, 2D nanomaterials have shown high potential to be used as novel nanozymes in biosensing, bioimaging, therapy, logic gates, and environmental remediation due to their unique physical, chemical, biological, and electronic properties. In this work, we summarize recent advances in the preparation and functionalization, as well as biosensor and immunoassay applications of various 2D material based nanozymes. To achieve this aim, first we demonstrate the preparation strategies of 2D nanozymes such as chemical reduction, templated synthesis, chemical exfoliation, calcination, electrochemical deposition, hydrothermal synthesis, and many others. Meanwhile, the structure and properties of the 2D nanozymes prepared by conjugating 2D materials with nanoparticles, metal oxides, biomolecules, polymers, ions, and 2D heteromaterials are introduced and discussed in detail. Then, the applications of the prepared 2D nanozymes in colorimetric, electrochemical, fluorescent, and electrochemiluminescent sensors are demonstrated.
Last Planner(r) System: Implementation in a Moroccan Construction Project
Year: 2016

As Morocco is a North African country witnessing constant initiation of major development projects, this paper attempts to integrate the Last Planner System(r) (LPS) for the first time, in a Moroccan construction project. Our case study tackles the structural work of a 21 building residential project consisting of 396 housing units with four floors each. Works were launched in the site in June 2015. This paper aims to describe the implementation steps of LPS into a Moroccan site, and to analyze the latter's evolution. Given that this system is still considered as unfamiliar in Morocco, we will try to answer the following questions while trying to apply LPS procedures on the Moroccan platform: What are Moroccan specificities that can contribute to smooth integration of LPS? What limitations may hurdle implementing LPS in Morocco? Are there any recommendations that shall help to adapt and improve incorporation of LPS within the Moroccan construction atmosphere? As far as data collection is concerned, we organized weekly site meetings with all the involved stakeholders of the project. During these meetings, activities of the following weeks were planned, and PPC of the previous one was calculated. Meanwhile, the root causes of variance were analyzed. As for the work flow, we drew a future six week plan to check the probability of any potential constraints, in order to deal with them proactively. This work will considerably contribute to developing LPS implementation data base. It is indeed an unprecedented trial of its kind as this paper is about describing its first implementation in Morocco, a French speaking country.
Control Allocation and Re allocation for a Modified Quadrotor Helicopter against Actuator Faults
Year: 2012

This paper investigates the modification of a conventional quadrotor helicopter Unmanned Aerial Vehicle (UAV) by adding two actuators to the helicopter for increased hardware redundancy and enhanced Fault Tolerant Control (FTC) capability. On one hand, this redundancy improves the helicopter's safety margin and on the other hand, it extends the FTC methods that can be flying tested on the quadrotor with more severe faults/damages. For illustration, control re allocation is employed as a fault tolerant control method in the presence of actuator faults. Some experimental results using the quadrotor testbed at the Networked Autonomous Vehicles (NAV) Lab of the Department of Mechanical and Industrial Engineering of Concordia University are given to illustrate the capabilities of the modified UAV system.
SPIRITUAL PASIEN PALIATIF DI RUMAH SAKIT, YOGYAKARTA
Venue: Media Ilmu Kesehatan
Year: 2019

Palliative care goal is to improve the quality of life of the patient. Spiritual is believed can improve the quality of life in palliative patients.  The purpose of this research is to identify the spiritual status of palliative patients in PKU Muhammadiyah Gamping Yogyakarta Hospital.  This study is a non experiment research. It used descriptive survey research method with 100 subjects which used total sampling technique. FACIT Sp is choosen based on this validity(r=0,5) dan realibity (r=0,768) to get the spiritual status of the sample.  The result of univariate analysis showed that the spiritual level of palliative patients in PKU Muhammadiyah Gamping Hospital with the mean values of 36,79 (0 48) and the spiritual component consisted of mean is 12,26 (0 16) faith is 12,85 (0 16) and peace 68 (0 16)  The spiritual status of palliative patients at Muhammadiyah Gamping Yogyakarta Hospital in the categories of meaning, faith, peace and spiritual level most have passed the cut of point, it showed that the palliative patient is headed to the good spiritual. Keyword Palliative care, spiritual, mean, faith, peace
Topic Shift Detection in Online Discussions using Structural Context
Venue: 2019 IEEE 43rd Annual Computer Software and Applications Conference (COMPSAC)
Year: 2019

Topic shift occurs frequently in online discussions, and automatically detecting topic shift can help to better capture the main clues and obtain relevant answers from large number of comments. Traditional topic shift detection methods calculate text similarity and have limited success because they ignore semantic relatedness. In this paper, we propose a new topic shift detection model that uses conversational structure to enrich the context information and word embedding to build the semantic associations for each comment post pair. Experiments show that the proposed model leads to better performance in terms of precision, recall, and F1 score.
Understanding Work Environment of Therapists to Incorporate Robots into Education for Children with Developmental Disorders
Venue: 2019 16th International Conference on Ubiquitous Robots (UR)
Year: 2019

This paper presents a preliminary research on introduction of robot technologies to the work environment of therapists including treatment preparation, management and even therapy sessions. As an initial step, expert interviews, ideation and prototyping were included in a design thinking workshop. The results from the expert interview showed that the therapists wanted technological supports in systematic data collection, easy to use and stimulable teaching aid and effective communication with parent. With these needs of the therapists, professionals from robotics group and therapy groups were participated in the workshop to discover technological solutions. In the prototyping phase of the design thinking workshop, the professionals from both groups created robot assisted therapy with scenario based design. The workshop concluded with the advises of the professionals from therapy group that the expected robot technologies involve expressive robotic platform with autonomous modules in attracting child's attention and motivating them, auxiliary sensors to gather child's data installed in the environment, easily customizable software environment to program the robot, and data server for managing and sharing data of children with therapist, doctors, teachers and parents for consistent treatment. This conclusion clearly implies the way of developing robots for children with developmental disorders.
Development and operation of Digital Twins for technical systems and services
Year: 2019

Digital Twins are new solution elements to enable ongoing digital monitoring and active functional improvement of interconnected products, devices and machines. In addition, benefits of horizontal and vertical integration in manufacturing are targeted by the introduction of Digital Twins. Using the test environment of smart factory cells, this paper investigates methodological, technological, operative, and business aspects of developing and operating Digital Twins. The following Digital Twin dimensions are considered in scientific and application oriented analysis: (1) integration breadth, (2) connectivity modes, (3) update frequency, (4) CPS intelligence, (5) simulation capabilities, (6) digital model richness, (7) human interaction, and (8) product lifecycle. From this, design elements for the development of Digital Twins are derived and presented.