nils-herrmann/clean_scirepeval huggingface dataset:
Dropout Prediction in MOOCs: Using Deep Learning for Personalized Intervention
Year: 2019

Massive open online courses (MOOCs) show great potential to transform traditional education through the Internet. However, the high attrition rates in MOOCs have often been cited as a scale efficacy tradeoff. Traditional educational approaches are usually unable to identify such large scale number of at risk students in danger of dropping out in time to support effective intervention design. While building dropout prediction models using learning analytics are promising in informing intervention design for these at risk students, results of the current prediction model construction methods do not enable personalized intervention for these students. In this study, we take an initial step to optimize the dropout prediction model performance toward intervention personalization for at risk students in MOOCs. Specifically, based on a temporal prediction mechanism, this study proposes to use the deep learning algorithm to construct the dropout prediction model and further produce the predicted individual student dropout probability. By taking advantage of the power of deep learning, this approach not only constructs more accurate dropout prediction models compared with baseline algorithms but also comes up with an approach to personalize and prioritize intervention for at risk students in MOOCs through using individual drop out probabilities. The findings from this study and implications are then discussed.
Hydrophilic carrageenan functionalized magnetic carbon based framework linked by silane coupling agent for the enrichment of N glycopeptides from human saliva.
Venue: Journal of separation science
Year: 2021

In this work, a magnetic graphene material coated with mesoporous silica was selected as the substrate, 3 Glycidoxypropyltrimethoxysilane and polyethyleneimine were sequentially bonded through chemical reactions, and then carrageenan was successfully introduced by electrostatic interaction, finally hydrophilic nanocomposite material was prepared. Due to a large number of hydrophilic groups, and polyethyleneimine was connected by means of chemical bonds, this material exhibits good hydrophilicity and stability for glycopeptide enrichment. In the actual enrichment process, nanomaterial exhibits high selectivity (1:500) high sensitivity (2 fmol) and good repeatability (five cycles) In addition, the synthesized material also shows a good enrichment effect in the face of actual complex biological samples, which captured 40 N glycopeptides from human saliva, indicating the application potential for enrichment of N glycopeptides. This article is protected by copyright. All rights reserved.
Analysis of the Relationship of the Improvement of Facades and Thermal Bridges of Spanish Building Stock with the Mitigation of Its Energy and Environmental Impact
Year: 2020

The energy improvement of building stock is essential to achieve a low carbon economy. The improvement of facades is among the most common measures to reduce energy consumption. However, the effect of thermal bridges is undervalued in most cases. This study assesses the effect of improving building facades and thermal bridges. For this purpose, a case study is assessed for all climate zones in Spain, both in current and future scenarios, considering operational patterns from the COVID 19 pandemic. The study shows that the application of energy conservation measures focusing on reducing the thermal transmittance of facades and the linear thermal transmittance of thermal bridges has a more significant energy and environmental effect than other, more economical energy conservation measures that do not improve the effect of thermal bridges. Likewise, the application of energy conservation measures to improve facades can reduce carbon dioxide emissions but are far from achieving the 90% reduction set by the European Union by 2050. Consequently, these measures should be combined with other measures.
A Survey of the Patient's Safety Culture Among Nurses in Tehran Based Hospitals Affiliated with Social Security Organization 2013 2014
Year: 2016

The patient's safety culture refers to priority of the patient's safety in the eyes of health and treatment staff. Without it, permanent development of health care system is not possible. The present study is aimed at analyzing patient's safety culture status from nurses' viewpoint. The descriptive correlative study was carried as cross sectional work in the selected hospitals affiliated with Social Security Organization in 2013 and early 2014. Study population was comprised of all nurses working in the selected hospitals and a sample group (n=200) was selected through random sampling. A standard questionnaire of patient's safety culture was used for gleaning the data. SPSS was used to analyze the data using mean, standard deviation, t test, and the Pearson's correlation coefficient. Among the aspects of the questionnaire, the respondents assigned the highest point to "teamwork attitude among different units" (mean and SD 4.01+ 0.97) followed by "organizational learning permanent improvement" (mean and SD 4.05 0.75 out of 5) and the aspects "employees' issues" (mean and SD =2.20 1.10) and "punitive measure in response to error" (mean and SD 2.52 0.98 out of 5) obtained minimum points. According to the Pearson's correlation test, there was a significant correlation between age and work record on one hand and "teamwork attitudes among different wards" on the other hand. Apparently, safety culture needs revision in some areas and training, cultural works, providing supportive organizational environment, and improving motivating environmental factors are of the main measures that can be taken by the managers to this end.
Efficiency of construction land allocation in China: An econometric analysis of panel data
Year: 2018

The optimal allocation of land resources is an important prerequisite for sustainable land use and for synergic development of regional resources environment economy. The question on how to optimize and allocate the regional land resources has become a hotspot in land use and land cover change studies. However, the allocative efficiency of China's construction land is currently a rather rudimentary and subjective issue. This study used an extended Cobb Douglas production function to measure the allocative efficiency of construction land at the national and regional levels using balanced provincial panel data from the 1985 2014 period. The results showed that China's construction land has exhibited a significant increasing trend over the past three decades, and its growth rate in the central region was relatively higher than that in the eastern and western regions. There is little or no available arable land that can be occupied by construction uses in China's economically developed provinces. Further investigations demonstrated that capital, labor and land investment all contributed to the non agricultural GDP growth in China. The allocative efficiency of construction land in the eastern region was greater than that in the central and western regions. The efficiency of construction land allocation in China needs to be further improved, and the intensive utilization of land resource is necessary, particularly in the context of China's "new normal" economy. Because of the regional disparities in the efficiency of construction land allocation, formulating specific region oriented land use planning may be more urgent. These findings can provide policymakers with a sound basis for land use and urban planning.
Layered SnS2 reduced graphene oxide composite a high capacity, high rate, and long cycle life sodium ion battery anode material.
Venue: Advanced materials
Year: 2014

Author(s) Qu, Baihua; Ma, Chuze; Ji, Ge; Xu, Chaohe; Xu, Jing; Meng, Ying Shirley; Wang, Taihong; Lee, Jim Yang  A layered SnS2 reduced graphene oxide (SnS2 RGO) composite is prepared by a facile hydrothermal route and evaluated as an anode material for sodium ion batteries (NIBs) The measured electrochemical properties are a high charge specific capacity (630 mAh g 1 at 0.2 A g 1) coupled to a good rate performance (544 mAh g 1 at 2 A g 1) and long cycle life (500 mAh g 1 at 1 A g 1 for 400 cycles) (c) 2014 WILEY VCH Verlag GmbH a Co. KGaA, Weinheim.
One dimensional dynamic microslip friction model
Year: 2006

A one dimensional dynamic microslip friction model, including the damper inertia, is presented in this paper. An analytical approach is developed to obtain the steady state solution of the resulting nonlinear partial differential equations when subjected to harmonic excitation. In the proposed approach, according to the excitation frequency, a single mode of the system is considered in the steady state solution for simplicity; consequently, phase difference among spatially distributed points is neglected. Three types of normal load distributions, resulting in distinct stick slip transitions along the contact interface, are studied. The resulting hysteresis curves and the associated Fourier coefficients are obtained and compared with each other. An equivalent point contact friction model is established and compared with the proposed microslip model, illustrating the effects of partial slip in the contact interface for low amplitude or high normal load applications.
Effect of microwave frequency on plasma formation in air breakdown at atmospheric pressure
Year: 2015

Microwave breakdown at atmospheric pressure causes the formation of a discrete plasma structure. The onedimensional fluid model coupling Maxwell equations with plasma fluid equations is used to study the effect of the microwave frequency on the formation of air plasma. Simulation results show that, the filamentary plasma array propagating toward the microwave source is formed at different microwave frequencies. As the microwave frequency decreases, the ratio of the distance between two adjacent plasma filaments to the corresponding wavelength remains almost unchanged(on the order of 1/4) while the plasma front propagates more slowly due to the increase in the formation time of the new plasma filament.
Psychopathy and Identification of Facial Expressions of Emotion.
Venue: Personality and individual differences
Year: 2008

The authors examined the association between psychopathy and identification of facial expressions of emotion. Previous research in this area is scant and has produced contradictory findings (Blair et. al. 2001, 2004; Glass Newman, 2006; Kosson et al. 2002) One hundred and forty five male jail inmates, rated using the Hare Psychopathy Checklist: Screening Version participated in a facial affect recognition task. Participants were shown faces containing one of five emotions (happiness, sadness, fear, anger, or shame) displayed at one of two different levels of intensity of expression (100% or 60% The authors predicted that psychopathy would be associated with decreased affect recognition, particularly for sad and fearful emotional expressions, and decreased recognition of less intense displays of facial affect. Results were largely consistent with expectations in that psychopathy was negatively correlated with overall facial recognition of affect, sad facial affect, and recognition of less intense displays of affect. An unexpected negative correlation with recognition of happy facial affect was also found. These results suggest that psychopathy may be associated with a general deficit in affect recognition.
Maximum wave power absorption by a control strategy through combining hydraulic cylinders
Venue: 2015 International Conference on Fluid Power and Mechatronics (FPM)
Year: 2015

Hydraulic power conversion system is widely used as a power take off system in wave energy converters to realize the aim that transforms wave energy into hydraulic energy. The efficiency of transformation is an interesting research topic which attracts many researchers' attention. In this paper, a control strategy through combining hydraulic cylinders is proposed for improving the efficiency of transformation by using sets of control valves to control each chamber of the hydraulic cylinders connecting with the high or low accumulator. Thus a series of effective combinations of the areas of the hydraulic cylinders can be yielded to match with the optimum control moment, which makes the hydraulic cylinders work with higher capacity in each period. For validating the results of the proposed control strategy, a number of simulation models for the hydraulic power conversion system of wave energy converters with and without the control strategy through combining hydraulic cylinders are simulated in AMESim and MATLAB software. The results show that the hydraulic power transformed from the incident wave via the hydraulic power conversion system with the control strategy through combining hydraulic cylinders is at least 27% higher than that via the hydraulic power conversion system without the control strategy through combining hydraulic cylinders. This indicates that the control strategy through combining hydraulic cylinders proposed in this paper can be used to improve the efficiency of transformation in wave energy converters.
Knowledge and Network Typology
Venue: Beyond Technonationalism
Year: 2019

This chapter develops a matrix that plots variations in open/tacit versus closed/codified system architectures supporting or limiting innovation capacity and new business creation in targeted sectors. Aggregate global and microlevel data are analyzed to identify concentrations of innovation and firm level activity. Emerging hubs of knowledge and firm creation in biomedical industries, including biopharmaceuticals, are identified. Aggregate data is supplemented with firm level case studies and interviews with entrepreneurs, government officials, incubation managers, and investors. The conceptual framework outlined in Chapter 1 and specified in Chapter 2 provides the lens through which innovation and entrepreneurship strategies in China, India, Japan, and Singapore are viewed. The analysis is supplemented with firm level entrepreneurial case studies.
A foundation for the study of behavior change support systems
Venue: Personal and Ubiquitous Computing
Year: 2012

The emerging ambient persuasive technology looks very promising for many areas of personal and ubiquitous computing. Persuasive applications aim at changing human attitudes or behavior through the power of software designs. This theory creating article suggests the concept of a behavior change support system (BCSS) whether web based, mobile, ubiquitous, or more traditional information system to be treated as the core of research into persuasion, influence, nudge, and coercion. This article provides a foundation for studying BCSSs, in which the key constructs are the O/C matrix and the PSD model. It will (1) introduce the archetypes of behavior change via BCSSs, (2) describe the design process for building persuasive BCSSs, and (3) exemplify research into BCSSs through the domain of health interventions. Recognizing the themes put forward in this article will help leverage the full potential of computing for producing behavioral changes.
Educacion a distancia virtual para el posgrado en ciencias en educacion en la UACh. Bases de un modelo
Year: 2014

espanolEn el presente articulo se hizo una propuesta de las Bases de un Modelo de Educacion a Distancia Virtual con el proposito de aumentar la cobertura a traves de nuevas ofertas educativas en el Posgrado en Ciencias en Educacion. La perspectiva metodologica fue cualitativa de tipo descriptiva con estudio de caso segun Stake (1999) desde un enfoque mixto de Hernandez, Fernandez y Baptista (2006) Como resultado se argumenta que las bases del modelo la integran: institucion, alumnos, profesores, tutores, con un modelo interactivo, aprendizaje autonomo, asi con base en teorias de aprendizaje y andragogico.  proposal for the foundation of a Virtual Learning Distance Model in order to increase coverage through new offerings in the Graduate was made in this article. The hypothetical approach argues that the foundations of a Model Virtual Distance Education under a blended format will increase coverage to new jobs in Graduate Education. The methodological approach was qualitative descriptive case study according to Stake (1999) from a mixed approach of Hernandez (2006) As a result it is argued that the basis of the integrated model: institution, students, teachers, tutors, with an interactive model of autonomous learning, based on theories of learning and andragogical.
Factors Affecting Consumer Behavior A Case Study of Fast Food
Year: 2019

The present study makes an attempt to analyze the fast food purchase behavior of residents of the Capital city of Uttar Pradesh, Lucknow while eating at foreign fast food joints like McDonalds, KFC, Pizza Hut etc. All the respondents were well aware of the foreign fast food brands and 96% of them have visited these atleast once in their lifetime. Low income and lack of interest in Fast food were the major reasons behind non consumption at these outlets. Average Purchase of Fast Food was found to be highest in higher Income groups .Average per capita expenditure on Fast food was found to be directly proportional to household income. It was also observed that youngsters were amongst the major patrons at these fast food joints.
Utilisation d'une application web de suivi des patients ambulatoires enquete de satisfaction
Year: 2015

La chirurgie ambulatoire est en constante augmentation avec elargissement des indications. Se pose le probleme de l'obligation reglementaire d'organiser la permanence et la continuite des soins ainsi que le suivi des patients  La Haute Autorite de sante recommande un rappel systematique le lendemain de l'intervention [2] Cette recommandation n'est que partiellement respectee. Ambucare (r) (FDP systems, L'Hay Les Roses, France) est une application Internet developpee pour le suivi des patients ambulatoires. L'objectif principal de l'etude est d'evaluer la satisfaction globale des patients suivis avec cette application. Materiel et methodes Dans cette etude observationnelle, retrospective et monocentrique, deux groupes ont ete etudies. Le groupe Ambucare comprend les patients operes d'une chirurgie d'epaule entre aout 2014 et janvier 2015, volontaires pour etre suivis avec l'application. A partir de j1, ces derniers remplissent un bulletin quotidien sur Internet, axe sur la douleur, les effets indesirables des medicaments et les suites chirurgicales. Si une reponse ne correspond pas aux seuils predefinis, un message d'alerte est envoye a l'acteur le plus apte a repondre au probleme (chirurgien, anesthesiste ou infirmiere referente douleur) La duree de suivi est de 5 a 7 jours selon la chirurgie. Le groupe temoin est compose des patients consecutifs operes en ambulatoire d'une chirurgie d'epaule en fevrier 2015 et pris en charge en ambulatoire. Des recommandations orales et ecrites leurs sont donnees avant l'intervention et la sortie selon les procedures en place dans l'etablissement. Un investigateur unique a contacte par telephone tous les patients selon un questionnaire standardise. Le critere de jugement principal est la satisfaction de la prise en charge globale, evaluee par une echelle de Likert  en 6 points (totalement satisfait, satisfait, plutot satisfait, plutot insatisfait, insatisfait, totalement insatisfait) Les resultats sont donnes en pourcentages. L'analyse statistique est realisee par un test de Chi 2 de Pearson. Resultats Les deux groupes sont globalement comparables pour ce qui est du sexe, de l'age, de la classification ASA et du type d'anesthesie recue. Les resultats sont rapportes dans le Tableau 1 Discussion La satisfaction globale est plus importante dans le groupe Ambucare que dans le groupe temoin. Cependant, d'autres etudes sont necessaires afin de confirmer ce resultat et d'evaluer l'interet de ce type d'application.
Competitive Supply Chain Network Design under Resource Constraints and Market Equilibrium
Year: 2015

This paper studies the effect of resource constraints on a competitive supply chain network design. The authors propose a Stackelberg Nash game model under market equilibrium and resource constraints, and also a cap and trade mechanism to incentivize the suppliers to comply with the regulation. The supply chain network model is directly applicable to the biofuel industry to address food, fuel and environment trilemma. The authors explore the government regulation of farmland use by directly imposing a constraint on farmers. To provide them with incentives to comply with the land use regulation, the authors implement the land use constraint through a cap and trade mechanism which is shown to attain equivalent land use pattern. The authors further prove the existence of optimal solutions to the two equivalent discretely constrained mathematical program with equilibrium constraints (DCMPEC) models and propose two adaptive "relax and tighten" schemes: integrality and Lagrangian duality based relaxation, to handle the binary variables in a mixed integer formulation of the models. The proposed methodology is tested in a case study for the biofuel industry for the State of Illinois. The computational results demonstrate superiority of the authors' customized algorithms to publicly available solvers for solving problems with realistic sizes. Finally, economic insights are also drawn from the case study.
Association of hypospadias with hypoplastic synpolydactyly and role of HOXD13 gene mutations.
Venue: Urology
Year: 2007

To present the association of hypospadias with hypoplastic synpolydactyly and discuss the molecular genetic basis of these conditions.  A large synpolydactyly kindred first described in 1995 was reinvestigated. Affected and unaffected subjects were interviewed, and pedigrees of the most recent generations were constructed. The marriages of two affected individuals were identified. The siblings who were homozygous for the deformity were asked to attend our institution and underwent a detailed clinical evaluation. Genetic studies and mutation screening were performed using polymerase chain reaction on genomic DNA extracted from venous blood.  Of the 245 members of the kindred, 125 individuals were affected. Of these 125 individuals, 12 were homozygotes (6 females and 6 males) with a mean age of 12 years. The remaining 113 individuals (57 females and 56 males) were heterozygotes showing milder limb deformities. No sex related phenotypic difference was found in the extremity findings, but all the males with a homozygote pattern had hypospadias. Three had distal penile, two had mid shaft, and one had penoscrotal hypospadias. Of the affected 56 heterozygote males, 22 were also noted to have distal hypospadias in various forms. Neither the heterozygote nor the homozygote females had any genital anomalies. The laboratory tests and karyotype profiles of these individuals were normal. Mutation screening of the homozygote subjects revealed a polyalanine duplication band of nine additional alanine residues at the human HOXD13 gene.  These findings strongly suggest that specific mutations in HOXD13 gene may cause both hypoplastic synpolydactyly and hypospadias.