Miracle-dz/UniFAR-FTUs huggingface dataset:
Designing a Flexible System for Automatic Detection of Categorical Student Sentiment Polarity Using Machine Learning

Writing is one of the most effective tool to express ideas, feelings, and opinions by human beings. With the growth of social media and blogs, human beings now express their feeling in writing that is accessed across the globe. There are so many research that has been published to perform opinion mining, subjectivity analysis, and to generate some values out of it in the form of future trends. Higher education may also use this subjectivity analysis for course delivery effectiveness. It can be achieved by generating knowledge from student’s comment about their feelings about a course delivery. The simple approach towards this objective is to classify the sentiment polarity of students that fits in a category (such as positive or negative comment). Machine learning has proved itself a good choice for such solution. Designing a flexible (modifiable and extensible) system for the said purpose is one of the challenging task. It needs expertized and experience. One can exploit the expertise and experience of the developer using design pattern that is a documented literature to construct flexible systems. The aim of this research is to design a flexible system for curriculum delivery evaluation by extracting the hidden knowledge of words from students’ comments about a particular course delivery. This extraction of hidden knowledge may be used for the purpose of the assessment, to further improve quality of teaching learning process.
El Lenguaje Relacional Facilita el Desarrollo de la Flexibilidad Cognitiva

En diversos trabajos, Gentner ha mostrado como el lenguaje relacional facilita la realizacion de tareas de razonamiento espacial analogico. En este trabajo planteamos esta hipotesis en el contexto mas general del desarrollo de la flexibilidad cognitiva, entendida no solo a nivel representacional sino tambien ejecutivo. Para ello modificamos la tarea de Ratterman y Gentner (1998) con la introduccion de una variable nueva, el orden de los elementos, que incrementa la dificultad de la tarea, al requerir que los participantes los ordenen mentalmente, eliminando asi la posibilidad de una respuesta basada en la apariencia perceptiva. Nuestros resultados confirman el efecto facilitador del lenguaje relacional en el desarrollo de la flexibilidad cognitiva. El efecto del orden de los elementos tambien se muestra facilitando la tarea cuando los elementos estan desordenados. Relational Language Facilitates the Development of Cognitive Flexibility: In several papers, Gentner has shown that relational language facilitates spatial analogical reasoning tasks. In this work we set this question in the context of the development of cognitive flexibility, understood not just as at the representation level, but also at the executive one. To this extent, we modify the design by Ratterman & Gentner (1988) by including order of presentation of the elements as a variable, to increase the executive demands of the task so that the elements to be mentally ordered, which also allows to exclude that the successful answer is based on perceptual appearance. Our results confirm the facilitatory effect of relational language on the development of cognitive flexibility. They also point that a disordered presentation also facilitates correct responses.
Urokinase receptor cleavage and shedding : occurrence and consequences.

The urokinase-type plasminogen activator receptor (uPAR), is a multifunctional protein with an impressive range of distinct, but overlapping functions in the process of tissue remodelling and cell migration: 1) uPAR regulates extracellular proteolysis by promoting plasminogen activation; 2) uPAR regulates cell adhesion as an adhesion receptor for vitronectin and by its capacity to modulate integrin function; 3) uPAR regulates cell migration as a signal transduction molecule and by its intrinsic chemotactic activity. In this thesis I have analysed the consequences, and occurrence, of uPAR cleavage and shedding. In chapter 3 I analyse the structural requirements for uPAR to promote cellular adhesion to vitronectin. I demonstrate that cell surface expression of intact uPAR is necessary and sufficient to promote binding of the myeloid cell line 32D to vitronectin. In this cell system the uPAR mediated cell binding does not lead to cell spreading and does not require integrin activation. In chapter 4 I demonstrate that the chemotactic activity of uPAR maps to the linker region which connects the first and second domain of uPAR. This chemotactic epitope (the SRSRY motif) is required and sufficient for the chemotactic activity of soluble uPAR fragments and appears to induce signalling similar to that induced by uPAR ligands such as uPA. In chapter 5 I show that uPAR and the uPAR fragments Dl and D2D3 are indeed generated on the cell surface and released to the surroundings by several different cell types. In chapter 6 I describe and characterise the presence of soluble uPAR and uPAR fragments in vivo. I demonstrate that suPAR as well as the suPAR fragments Dl and D2D3 are present in human urine. Using mice xenografted with human model tumours I demonstrate that the tumour tissue is a source of urinary suPAR antigen and that the suPAR fragment pattern in urine correlates with uPAR cleavage in the tumour tissue.
Teachers’ Concern towards Applying Computational Thinking Skills in Teaching and Learning

The purpose of this study was to examine the teachers’ concern towards applying computational thinking skills in their teaching and learning. This study used Concerns-Based Adoption Model (CBAM) to identify the Stages of Concern (SoC) of the respondents. The questionnaires used were 35 items that were measured using a Likert scale of 7 points. Questionnaires were distributed to all the teachers in a district in Sarawak, Malaysia. A total of 564 responds were collected in this study. The findings indicated that the respondents were at the Unconcerned Stage (Stage 0) with highest percentile score of 94%, followed by Informational Stage (Stage 1) and Management Stage (Stage 3). The findings also indicated that the respondents showed minimal concern but are interested and need more information on how to apply computational thinking skills in teaching and learning. The findings of this study are expected to assist the concern and the ministry to improve the delivery of information concerning computational thinking skills in teaching and learning to the teachers.
SISTEM PENDETEKSI INTRUSI BERBASIS MOBILE AGENT PADA KOMPUTASI AWAN (CLOUD COMPUTING)

Dewasa ini, cloud computing semakin populer di industri teknologi informasi, akan tetapi kebanyakan pengguna cloud tidak tahu menahu bagaimana proses pertukaran data dalam jaringan cloud, padahal cloud sangat rentan terhadap ancaman keamanan dan pihak provider seringkali menyembunyikan kelemahan itu, oleh karena itu keamanan pada cloud menjadi salah satu masalah yang perlu diperhatikan sebagai salah satu strategi “pencegahan lebih penting dari pada pengobatan”, dengan mendeteksi potensi celah keamanan sedini mungkin lebih baik daripada merespon sebuah serangan setelah sistem sudah dalam keadaan bahaya. Dalam paper ini akan membandingkan beberapa model pendeteksian penyusup pada sebuah lingkungan komputasi cloud terdistribusi, dan menjelaskan beberapa metode pencegahan dari sistem pendeteksi penyusup atau dikenal sebagai intrusion detection system (IDS) dan mengusulkan model solusi IDS berbasis mobile agent yang di aplikasikan pada cloud client dan di harapkan akan menagani beberapa kekurangan IDS pada cloud computing.
Usage of Embedded Systems for DoS Attack Protection

An embedded system commonly represents special- purpose device usually based on processor designed to perform one or a few dedicated functions. Such systems are designed to maintain control over specific functions by gathering and reporting data received from sensors or some other devices. Embedded systems show increasing trend to modify data or control information flow, in some cases over the local area network or even Internet. Widespread network usage results in rapid development of advanced network connectivity in embedded systems. In this paper denial of service as a challenging problem in network security is introduced. Different defense methodologies are described. Further more, possibility of an embedded system advanced network connectivity usage in hardening network security is explored.
Who gains from active learning in higher education?

ABSTRACT We study whether and how teaching style (i.e. traditional vs active mode) affects academic performance of young individuals in tertiary education. We focus on entrepreneurship education as an ideal subject for experimenting alternative teaching methods. Identification relies on Triple Difference estimates based on detailed administrative data for the universe of students in a Master’s program in Management in Italy. Our preferred estimates show no significant effects of the teaching mode on student’s achievement. However, further estimates reveal interesting heterogeneities across students, being active teaching more effective in the case of females and students from secondary schools with an academic track.
Messsystem zur Rauschanalyse von magnetoresistiven Sensoren

Im Rahmen dieser Arbeit wird ein Messsystem zur Analyse der dominierenden Rauschquellen und Rauschprozesse von magnetoresistiven (MR-) Magnetfeldsensoren entwickelt, vorgestellt und charakterisiert. Die wichtigsten magnetoresistiven Sensoren sind die AMR-, GMR- und TMR-Sensoren. Die intrinsischen Rauschprozesse dieser Sensoren werden von den physikalischen Prozessen auf der mikro- und makroskopischen Ebene hervorgerufen und begrenzen das Detektionslimit der Sensoren. Eine Charakterisierung und Analyse der Rauschprozesse ist fur die Spezifizierung des Auflosungsvermogens der Sensoren, das physikalische Verstandnis der Sensorphysik und die weiterfuhrende Verbesserung der Sensoren notwendig. Die Untersuchung des Rauschens ist eine komplexe Messaufgabe, da die intrinsischen Signale von den Sensor- und Umgebungsparametern (Magnetischer Arbeitspunkt, Temperatur, etc.) abhangen und von den Rauschquellen der Messelektronik signifikant uberlagert und damit gestort sein konnen. Die Charakterisierung des Ausgangsrauschens findet aus diesen Grunden in einer extrem rauscharmen, sehr stabilen und abgeschirmten Messumgebung statt. Zur Analyse der Wechselwirkungen und Abhangigkeiten der Rauschquellen ermoglicht das Messsystem die Charakterisierung in Abhangigkeit von der Temperatur, der Versorgung, dem Stutzmagnetfeld und dem magnetischen Arbeitspunkt. Hervorzuheben sind dabei das im Rahmen dieser Arbeit entwickelte Temperatursystem mit einem Temperaturbereich von ±175 °C und die Stromquelle zur Erzeugung extrem rauscharmer und breitbandiger Magnetfelder innerhalb eines 3-Achsen Helmholtz-Spulensystems. Zusatzlich und unabhangig von der MR-Sensorik wurde eine GMI-Elektronik in das Messsystem integriert, welche die Analyse und Charakterisierung von selbst hergestellten GMI-Elementen in offener und geschlossener Regelschleife ermoglicht. Nach einer Charakterisierung des Messsystems erfolgen Messungen an kommerziell verfugbaren AMR-, GMR- und TMR-Sensoren. Dazu wird zum Einstieg ein Uberblick des Detektionsvermogens verschiedener AMR-Sensoren gezeigt und am Beispiel eines AMR-Sensors eine Analyse der dominanten Rauschquellen durchgefuhrt. Die Untersuchungen an mehreren GMR- und TMR-Sensoren weisen ein ausgepragtes 1/f-Rauschen auf und zeigen damit direkt die Problematik der beiden Sensorarten.
Analysis of First Generalized IIR Digital Butterworth Filter Design Using MATLAB

Filtering involves the manipulation of the spectrum of a signal by passing or blocking certain portions of the spectrum, depending on the frequency of those portions. Filters are designed according to what kind of manipulation of the signal is required for a particular application. This paper introduces a first generation IIR digital filters that unifies the classical digital Butterworth filters and the well known maximally at FIR filters. In the design of IIR filters, a commonly used approach is called the bilinear transformation. This design begins with the transfer function of an analog filter, and then performs a mapping from the s-domain to the zdomain. New closed form expressions are provided, and a straight forward design technique is described. The first generation IIR digital filters have more zeros than poles (away from the origin) and their (monotonic) square magnitude frequency responses are maximally flat at w = 0 and at w = If. Another result of the paper is that, for a specified cut-off frequency and a specified number of zeros, there is only one valid way in which to split the zeros between z = -1 and the pass band. This technique also permits continuous variation of the cut-off frequency. IIR filters having more zeros than poles are of interest, because often, to obtain a good trade-off between performance and implementation complexity, just a few poles are best. The results have been demonstrated with the aid of a MATLAB script. The design process of a digital filter is long and tedious if done by hand. KeywordsIIR, Filter Design, Butterworth Design, lVIATLAB and First Generalization
Trust and opportunistic behavior: the breach of contracts in the tobacco chain

This study aimed to analyze the growers’ socioeconomic characteristics that are related to opportunistic behavior and contract breach in the tobacco productive chain in South Brazil. The nature of this research is predominantly quantitative and the data were collected through a survey with tobacco growers from the three states of South Brazil. Based on the literature of Transaction Costs Economics and inter-organizational relations, the analysis showed the main characteristics of the tobacco growers who are more likely to breach their contracts with the integrative companies.
Cortical bone continuum damage mechanics constitutive model with stress triaxiality criterion to predict fracture initiation and pattern

A primary objective of finite element human body models (HBMs) is to predict response and injury risk in impact scenarios, including cortical bone fracture initiation, fracture pattern, and the potential to simulate post-fracture injury to underlying soft tissues. Current HBMs have been challenged to predict the onset of failure and bone fracture patterns owing to the use of simplified failure criteria. In the present study, a continuum damage mechanics (CDM) model, incorporating observed mechanical response (orthotropy, asymmetry, damage), was coupled to a novel phenomenological effective strain fracture criterion based on stress triaxiality and investigated to predict cortical bone response under different modes of loading. Three loading cases were assessed: a coupon level notched shear test, whole bone femur three-point bending, and whole bone femur axial torsion. The proposed material model and fracture criterion were able to predict both the fracture initiation and location, and the fracture pattern for whole bone and specimen level tests, within the variability of the reported experiments. There was a dependence of fracture threshold on finite element mesh size, where higher mesh density produced similar but more refined fracture patterns compared to coarser meshes. Importantly, the model was functional, accurate, and numerically stable even for relatively coarse mesh sizes used in contemporary HBMs. The proposed model and novel fracture criterion enable prediction of fracture initiation and resulting fracture pattern in cortical bone such that post-fracture response can be investigated in HBMs.
Poverty Policy, the Market, and the Metropolis

This essay focuses on three recent books that examine contemporary trends and policy responses to poverty and urban regeneration: Places in Need: The Changing Geography of Poverty, by Scott W. Allard; The Servant Class City: Urban Revitalization versus the Working Poor in San Diego, by David J. Karjanen; and Urban Policy in the Time of Obama, edited by James De Filippis. Each examines the issue with a substantially different focus—the increase and nature of suburban poverty, the role of market-based urban revitalization in poverty production, and the approach and limitations of national urban policy under Obama—to shed light on the possibilities, limitations, and unintended consequences of our efforts to regenerate our cities and address poverty in urban areas.
On the Effects of Sanctions on Trade and Welfare: New Evidence Based on Structural Gravity and a New Database

Using a new, global data base covering the years 1950 to 2015, we study the impact of sanctions on international trade and welfare. We make use of the rich dimensionality of our data and of the latest developments in the structural gravity literature. Starting with a broad evaluation by sanction type, we carefully investigate the case of Iran. Effects are significant but also widely heterogeneous across sanctioning countries. Moreover, they depend on the direction of trade. We also perform a counterfactual analysis which translates our partial equilibrium sanction estimates into heterogeneous but intuitive general equilibrium effects within the same framework.
A study of the sustainable growth factors in legal practices: A case of Mawere and Sibanda Legal Practitioners (2009 - 2012)

V LIST OF TABLES . XI LIST OF FIGURES . XII LIST OF ABBREVIATIONS/ACRONYMS . XIII CHAPTER 1 . 1 1.0 INTRODUCTION . 1 1.1 BACKGROUND . 1 1.1.1 THE LEGAL PROFESSION . 2 1.2 STATEMENT OF THE PROBLEM . 13 1.3 THE MAIN RESEARCH OBJECTIVE . 14 1.4 THE MAIN RESEARCH QUESTION . 14 1.5 RESEARCH PROPOSITION . 15 1.6 JUSTIFICATION OF THE STUDY . 15 1.7 SCOPE OF THE RESEARCH . 15 1.8 ASSUMPTIONS OF THE STUDY . 16 1.9 DISSERTATION STRUCTURE . 16 CHAPTER 2 . 17
Classification of Tutor System Logs with High Categorical Features

In this paper we propose our method for solving KDD Cup 2010 problem. Basically we did not perform a thorough literature review and reinvent all the ideas from scratch. The problem is predicting students learning based on logs of tutor systems which includes very large number of instances. In the preprocessing stage we deleted features not present in the test dataset and created some features. Transforming categorical features into numeric ones was another preprocessing step we performed. We used very naive sampling to deal with large number of instances. Despite of using only 3 features of 22 features and regular decision tree and regression algorithms, results are acceptable. Even though we have used so many simplifications, did not consider a lot of interrelationships among features and did not use the whole training data, our team, Y10, has reached the 4 th student place and 15 th rank overall.
Spanish-English Bilingual Speech Therapy: A Review of Availability, Practice, and Need

Spanish-English bilingual speech therapy is a growing field in the United States, especially in the public school system. The Spanish speaking population in America is increasing, and Spanish-English bilingual children require different speech assessments and treatment from English monolingual children. The bilingual language development process is different, which affects how speech language pathologists (SLPs) need to assess and treat those clients. International studies help add to existing and guide the creation of future bilingual speech therapy programs, but non-English or Spanish language-specific techniques are not very useful. Another consideration is language and cultural barriers, which hinder the ability of a therapist to communicate effectively with the parents. Collaboration is a part of treatment plans, and SLPs are responsible for providing the best care possible and continuing training in relevant areas, making Spanish-English bilingual individuals a high demand in the field. There are not many SLP programs with a bilingual focus in the United States, which means that there are not many certified bilingual speech therapists. Given the growing need for bilingual speech therapists, this makes it challenging for SLPs to fulfill their ethical obligations. As the need for bilingual SLPs intensifies, members of the field should work towards providing therapists with the necessary training to treat the unique needs of bilingual clients.
The peak of the solution of certain Turing system

Abstract-It is well known that the instability of Turing system leads to pattern formation. To this end, we study the local behavior of the solution of certain Turing system. We prove that the peak of the solution attend at the boundary. This results coincide with authors previous results. Keywords-Turing system; location of peak of solution.
Mesoscopic transport in 2D materials and heterostructures

This thesis presents an experimental work on electronic transport in two-dimensional (2D) van der Waals systems. The variety of the physics of the chapters reflects the exploratory character of the Ph.D. study and demonstrates the versatility and the unique properties of some of the members of the vast group of van der Waals materials. In the experiments we explore the fundamental properties of carriers and states in 2D materials via electrical transport. The first three chapters include experimental work on planar transport in multiterminal devices from transition metal dichalcogenides (2H-MoS2) and trichalogenides (TiS3). In the fist chapter, we study how intravalley spin relaxation and the phase coherence affects weak localization in boron nitride encapsulatedMoS2. In TiS3 we explore its electronic properties and in order to avoid disorder induced localization, we protect the devices with hexagonal boron nitride. An improvement in the quality of the transport and signatures of charge-density-wave transition are observed. Lastly, multi-terminal transport in 1T/1T0-MoS2 and its carrier transport mechanism are investigated, with special emphasis on how to establish low-temperature electrical contacts to 2H-MoS2. The next part of the thesis shifts to vertical transport in van der Waals heterostructures. Firstly, we use WS2 as tunneling barrier between monolayer graphene and metal contact. We observe sequential tunneling through localized states. By studying the ground and excited states, we gain information about their spatial sizes and the magnetic moments of these states. Lastly, we explore heterostructures of graphene on WSe2 and potential effects on the band structure due to the dielectric environment and the proximity induced spin-orbit coupling.