Miracle-dz/UniFAR-FTUs huggingface dataset:
Modeling and experimental identification of torsional drill string dynamics under uncertainties

This D.Sc. thesis proposes new perspectives for modeling drill string torsional dynamics under uncertainties. This work develops a novel stochastic hysteretic (nonreversible) bit-rock interaction model. Firstly, a new nominal interaction model, which depends not only on the bit speed, but also on the bit acceleration is developed. Then, a new stochastic model for the bit-rock interaction, taking into account the inherent fluctuations during the drilling, is also proposed. Furthermore, here a new test-rig is proposed to analyze drill string dynamics and bit-rock interaction, which is able to reproduce stick-slip phenomena while drilling a rock sample using standard masonry bits, as well as to validate bit-rock interaction models. An original strategy for modeling uncertainties globally, based on terms of the nonparametric probabilistic approach, considering a simple torsional model for a drill string, is also proposed herein. This strategy allows to control the dispersion level of each interior and interface DOFs of each drill string substructure independently, which can provide more information to improve the operational safety
OPEN DEFECT DETECTIONS OF CMOS ICS BY USING IDDQ TESTING

An IDDQ testing is proposed to detect an open defect at an input gate in a CMOS IC. The testing is based on measuring a quiescent supply current IDDQ on the IC. When the open defect occurs at the input gate, the large IDDQ will flow to the IC regardless test input vectors which generate to it. On the other hand, in the defect-free IC, the large IDDQ does not flow to the IC. The testing is implemented in the CMOS IC designed by a Spice net list library of NXP Co. Ltd and is examined using a Spice simulation. Simulation results show that the open defect can be detected by the IDDQ testing.
Aplicativo com suporte a dados geoespaciais para gerenciamento de processos de licenciamento ambiental.

Este trabalho tem como objetivo descrever a construcao de uma nova versao para um aplicativo com suporte a dados geoespaciais, utilizado para cadastro e consulta de empreendimentos com atividades passiveis de licenciamento ambiental, considerando como estudo de caso o estado de Mato Grosso do Sul. Sera demonstrada em detalhes a interface para cadastramento destes empreendimentos e atividades, que foi remodelada em relacao a sua versao anterior. Tambem neste trabalho foi finalizada a consulta espacial aos empreendimentos cadastrados, possibilitando o acesso a dados reais e sua visualizacao em forma de mapas e graficos. Estes modulos sao partes integrantes do Sistema Interativo de Suporte ao Licenciamento Ambiental – SISLA, e atualmente se encontram em fase de testes pelos tecnicos do Instituto de Meio Ambiente do Mato Grosso do Sul (Imasul). Em trabalhos futuros, pretende-se que estes modulos sejam integrados ao Sistema Imasul de Registros e Informacoes Estrategicas do Meio Ambiente (Siriema).
PERSEPSI PENERAPAN SISTEM INFORMASI KEUANGAN (SIKEU) PADA PERGURUAN TINGGI DI KOTA PALOPO DENGAN PENDEKATAN METODE TECHNOLOGY ACCEPTANCE MODEL (TAM)

Penelitian ini menganalisis faktor-faktor yang mempengaruhi penerimaan sistem keuangan (SIKEU) pada perguruan tinggi Palopo dengan pendekatan TAM (Technology Acceptance Model). Metode analisis dalam penelitian ini menggunakan metode analisis Partial Least Square (PLS). Pendekatan yang digunakan dalam penelitian ini adalah kuantitatif dengan melakukan pengamatan dan pemantauan secara langsung pada objek penelitian melalui penggunaan instrumen penelitian berupa kuesioner. Hasil peneltian menunjukkan bahwa variabel perceived ease of usedan perceived usefulness berpengaruh positif dan siginikan terhadap penerimaan sistem keuangan (SIKEU); dan variabel lainnya yaitu behavioral intention dan attitude toward behaviour tidak berpengaruh signifikan terhadap penerimaan sistem keuangan (SIKEU). Berdasarkan pengujian statistik yang dilakukan, tingkat pengaruh yang lebih tinggi dalam penerimaan sistem keuangan (SIKEU) adalah perceived ease of use dengan nilai sebesar1,995; dan tingkat pengaruh terendah dalam penerimaan sistem keuangan (SIKEU) adalah perceived usefulness dengan nilai sebesar 1,673.
A panel of collagen genes are associated with prognosis of patients with gastric cancer and regulated by microRNA-29c-3p: an integrated bioinformatics analysis and experimental validation

Background: The systematic expression characteristics and functions of collagen genes in gastric cancer (GC) have not been reported. Through public data integration, combined with bioinformatics analysis, we identified a panel of collagen genes overexpressed in GC. The functions of these genes were analyzed and validated in a GC-related cohort. microRNAs that may potentially target such genes were investigated in vitro. Methods: Four GC-related datasets retrieved from the Gene Expression Omnibus (GEO) were used to extract differentially expressed genes (DEGs) in GC. Functional annotation was performed to identify the potential roles of the identified DEGs. The association of candidate genes involved in the prognosis of GC patients (n=876) was determined using data provided by the Kaplan–Meier-plotter database, The Cancer Genome Atlas Stomach Adenocarcinoma (TCGA-STAD) repository, and a GC-related dataset (GSE15459). The expression characteristics of candidate genes and their associations with clinical parameters were validated in our in-house cohort (n=58). MicroRNAs able to target the identified candidate genes were predicted and confirmed using qRT-PCR, Western blotting, and dual-luciferase reporter assays in vitro. Results: After the integration of four GEO datasets, 76 DEGs were identified. Gene Ontology and Kyoto Encyclopedia of Genes and Genomes pathway analysis indicated that these DEGs were significantly enriched in ECM-related functions and pathways. A group of collagen genes was significantly upregulated in the GC tissues and constituted a protein–protein interaction network as important nodes. Some of these collagen genes were closely associated with poor prognosis in GC patients. Overexpression of COL1A1 and COL4A1 was confirmed in our in-house cohort, and this was related to prognosis and certain clinicopathological parameters. We found that microRNA-29c-3p could directly target COL1A1 and COL4A1 in BGC-823 cells. Conclusions: Collagen genes identified in this study were associated with patient prognosis in GC and may represent diagnostic markers or potential therapeutic targets. Aberrant expression of such candidate genes may be induced by microRNA-29c-3p.
Motor-sensory Feedback Formulations: Are We Asking the Right Questions?*

Gyr and his colleagues (1979) would have us confront anew the evidence for assigning a critical role for motor activity in visual perception. While their discussion of "sensorimotor processes" suggests a tightly coupled relationship between perception and action systems, we believe that the authors present a potentially misleading picture of the relationship between efference and afference. The thrust of this article will be to layout some of the logical problems associated with a theory that utilizes the concept of efference copy. By and large these are in addition to those already raised by a number of commentators on a paper by Roland (1978). The present position is that efference copy and its often synonYmousl Y used affil iates, corollary discharge and central monitoring of efference are, wi th perhaps a single exception, low on theoretical power. This is the general claim to be made here In addition, we wish to point specifically to an al ternative account for the type of data that Gyr et al. seek to explain. We focus on the concepts of information discordance and allocation of attention, which when allied, seem to provide an adequate explanation of much of the adaptation literature--without resorting to unique contributions from efference copy.
ADME Profiling in Drug Discovery and a New Path Paved on Silica

The drug discovery and development pipeline have more and more relied on in vitro testing and in silico predictions to reduce investments and optimize lead compounds. A comprehensive set of in vitro assays is available to determine key parameters of absorption, distribution, metabolism, and excretion, for example, lipophilicity, solubility, and plasma stability. Such test systems aid the evaluation of the pharmacological properties of a compound and serve as surrogates before entering in vivo testing and clinical trials. Nowadays, computer-aided techniques are employed not just in the discovery of new lead compounds but embedded as part of the entire drug development process where the ADME profiling and big data analyses add a new layer of complexity to those systems. Herein, we give a short overview of the history of the drug development pipeline presenting state-of-the-art ADME in vitro assays as established in academia and industry. We will further introduce the underlying good practices and give an example of the compound development pipeline. In the next step, recent advances at in silico techniques will be highlighted with special emphasis on how pharmacogenomics and in silico PK profiling can enhance drug monitoring and individualization of drug therapy.
Coexistence of Digital and Analog Resistive Switching With Low Operation Voltage in Oxygen-Gradient HfOx Memristors

A highly reliable and multifunctional memristor demonstrating both digital and analog characteristics was fabricated utilizing HfOx films with oxygen concentration gradient. Remarkably uniform and low operation voltage (magnitude less than 0.9V) at high speed (down to 20 ns) was realized in the digital switching mode. This performance is achieved by confining the switching region to the weak apex of the cone-shape conductive channel, which stems from the gradient distribution of resistivity and electric field in HfOx. In addition, multi-levels resistance states were defined by the negative reset voltage/compliance current in the analog switching mode. The gradually changing conductance like synapse can be tuned by pulse series with low operation voltage (less than 0.7V). The coexistence of digital and analog modes open up opportunities for the synapse-like in-memory computing.
A Synopsis of Enterprise Crowdsourcing literature

In the past few years, researchers have provided a desirable sense of clarity regarding the general term crowdsourcing and what it constitutes. However, with its emergence, several derivatives of the term have appeared in scientific literature. This research article focuses on enterprise crowdsourcing as one of the recent derivatives, which, due to its ambiguity, requires further discussion and clarification. Thus, the article aims to reveal the various nuances of how the term enterprise crowdsourcing is interpreted by diverse scholars. As the term has now gained reasonable momentum in available crowdsourcing literature, it is time to reflect. In this work, a systematic literature review is applied to survey different explanations of the term and to derive its constitutional characteristics. Additionally, the article provides an overview of crowdsourcing applications deployed in an enterprise context for both primary and support activities of the value-added chain. Finally, this paper concludes with suggestions of how to prevent misinterpretation and what key questions should be addressed in future research.
Determination of concentration of heavy metals in ginger using flame atomic absorption spectroscopy

Concentrations of four heavy metals (Ni, Zn, Cd and Pb) in two ginger varieties were determined using flame atomic absorption spectroscopy (FAAS) with wet acidic digestion methods. Results showed that the concentration of zinc is 0.86 to 1.17 mg/kg in Hargama and 0.63 to 0.87 mg/kg in Bolbo varieties. The concentration of nickel for Hargama and Bolbo are 0.15 to 0.18 and 0.17 to 0.21 mg/kg, respectively. Zinc concentration in Hargema variety is statistically significantly different from Bolbo variety. However, no statistically significant differences were observed in nickel concentrations. Concentration of zinc is relatively greater than concentration of nickel in the samples. Concentrations of both metals are below permissible limits set by WHO/FAO and could not cause health problems. In addition to this, the concentration level of both metals is lower than toxicity levels. But concentrations of cadmium and lead metals were below the method detection limit. Key words: Concentration, ginger, heavy metal, permissible limit, toxicity.
ADIDA: Automatic Dialect Identification for Arabic

This demo paper describes ADIDA, a web-based system for automatic dialect identification for Arabic text. The system distinguishes among the dialects of 25 Arab cities (from Rabat to Muscat) in addition to Modern Standard Arabic. The results are presented with either a point map or a heat map visualizing the automatic identification probabilities over a geographical map of the Arab World.
‘Non-Routine Entrepreneurs’: Another Path of Realizing Entrepreneurial Intentions

The paper seeks to introduce the definition and to specify the characteristic features of “non-routine entrepreneurs”. Using the notion of entrepreneurship by Shane and Venkataraman (2000), it explains “non-routine entrepreneurs” as persons driven primarily by the idea of exploring entrepreneurial opportunities, but less interested in being formally engaged in owing/managing a business or to claim additional incomes from it. The empirical base of the papers is two cases, labelled as a “patriot” and a “big tipster”, from a panel of entrepreneurs, self-employees and start-ups the author surveyed in Moscow in three annual waves (2013–2015, N = 13). The paper shows the differences between the “non-routine entrepreneurs” and already well investigated groups (latent entrepreneurs, informal entrepreneurs, hybrid entrepreneurs, freelancers) and examines the personal (human capital) and social (transitional shock) context of the evolution of entrepreneurial intentions and their motivation. The “non-routine-entrepreneurs” fill in the lack of evidence about entrepreneurially minded persons with non-monetary goals, or non-economic meaning of results from such activities. Thus, the paper contributes to the literature on the reason and the intentionality of entrepreneurship. It concludes that “non-routine entrepreneurship” might become the choice of many people in contemporary societies where the boundaries between different kinds of economic activities are blurred.
Primary care: the filter

Gervas and Perez-Fernandez provided the scientific rationale for the primary care physician as the “filter” in the medical care system. In their paper, they review the evidence that the functions of the primary care physician reduce unnecessary consultations with specialists, thus reducing the burden on specialists and releasing their time to deal with patients who can best benefit from their services. In his commentary on the Gervas/ Perez-Fernandez paper, Campos argues against the filter on the grounds that it does not allow for responsiveness to demand. In fact, it is one of the purposes of the filter to respond to needs rather than to demands. In health care, “demand” has been responsible for great variability in the receipt of health services because the most socially advantaged are in a better position to express demands than are the social disadvantaged, thus leading to the inverse care law. The studies of Van Doorslaer and colleagues have shown that almost all Primary Care: the Filter
Analysis and implementation of compact two-section half-wave balun using artificial transmission lines

ABSTRACT In this paper, a compact two-section half-wave balun using artificial transmission lines is proposed. This paper describes design rules that need to be satisfied for a two-section half-wave balun by the even- and odd-mode analysis. According to the design rules, a two-section half-wave balun using microstrip lines is designed and simulated. Then, to reduce dimensions, conventional quarter-wavelength microstrip transmission lines are replaced by artificial transmission lines realized by a series of meandered-line inductors, parallel-plate capactiors, and interdigital capacitors. Additionally, the improved artificial transmission lines with chip capacitors have realized lines with very low characteristic impedance that cannot be easily achieved by conventional transmission lines. Based on these theories, a two-section half-wave balun using artificial transmission lines has been designed and fabricated. The developed balun occupies 25.1 mm × 20.2 mm, which almost equals to 5.0% of this topology of balun adopting conventional microstrip transmission lines. The simulated and measured results demonstrate good agreements between them, which verifies feasibility of the proposed designing method.
The Researches on the Impact of Community Q&A Information Quality on Consumers' Purchase Intention

Based on the analysis of community question and ans wer information quality (this study uses the Taobao shopping platform as th e research object), the customer perceived value is taken as the intermediary variab le, and the product type is introduced as the adjustment variable between the community qu estion answering information quality and the perceived value. The conceptual mod el f the influence of community question and answer information quality on consumer s' purchase intention was used to collect data using questionnaires and validate the model through empirical analysis. The study found that Q&A information has a significant positive effect on consumers' purchase intention. Perceived value plays a complet e intermediary role between Q&A information quality and purchase intention. There i s a moderating effect of the product type on Q&A information quality and purchase intent io . When the product is a search product, Q&A information quality has a significant positive effect on the purchase intention; when the product is an experiential prod uct, the Q&A information quality has no significant effect on the purchase intention.
Parlamente und ihre Funktionen : institutionelle Mechanismen und institutionelles Lernen im Vergleich

Einleitung - I. Parlamentarismusforschung und institutionelle Analyse: 1. Parlamente und ihre Funktionen - 2. Was sind und zu welchem Zweck untersucht man 'institutionelle Mechanismen'? - 3. Institutionalitat und Geschichtlichkeit von Parlamenten: Evolutionsanalytische Perspektiven - II. Instrumentelle Parlamentsfunktionen in Einzelfallstudien: 1. Die Franzosische Nationalversammlung - 2. Die Volkskammer der DDR - 3. Der Deutsche Bundesrat - 4. Der kanadische Senat - 5. Das Europaische Parlament - 6. Die offentliche Wahrnehmung von Parlamenten - III. Instrumentelle Parlamentsfunktionen im Vergleich: 1. Pragefaktoren instrumenteller Funktionserfullung - 2. Pragefaktoren institutioneller Mechanismen und institutionellen Lernens
Security and Privacy of Wearable Internet of Medical Things: Stakeholders Perspective

Internet of medical things (IoMT) is a fast-emerging technology in healthcare with a lot of scope for security vulnerabilities. Like any other internet connected device, IoMT is not immune to breaches. These breaches can not only affect the functionality of the device but also impact the security and privacy (S&P) of the data. The impact of these breaches can be devastating as well as life-threatening. The proposed methodology used a stakeholder-centric approach to Improve security of wearable IoMT devices. The proposed methodology relies on a set of S&P attributes for wearable IoMTs that are identified to quantify security in these devices. Second, presented a method to quantify security in these devices. Finally, presented a case study to show how the proposed framework can be used to rank Wearable IoMTs in terms of S&P. This work aimed to (1) guide hesitant users when choosing a secure IoMT device, (2) encourage healthier competition among manufacturers of IoMT devices, and therefore, (3) improve the security of wearable IoMT devices.
A complexity theory perspective of kaizen: a study in healthcare

Abstract Kaizen projects (KPs) change the interactions between the elements of socio-technical systems, and therefore their impacts cannot be fully controlled. By using complexity theory as a lens for making sense of interactions, this study proposes a nine-step framework for assessing and influencing KPs planned, under way, and completed. The most innovative part of the framework is the assessment of the interactions within and between KPs. A study of five KPs carried out in the process of preparation and administration of medications in a surgical ward illustrates the use of the framework. Based on this study and extant theory, seven design propositions that support the framework application were devised. Also, the use of the framework produces descriptive data that sheds light on nuances and unintended consequences of kaizen.
A Survey on Opportunistic Routing Protocols in Cellular Network for Mobile Data Offloading

Currently cellular networks are overloaded, due to rapid growth of various smartphone applications. With the arrival of 3G and 4G network technologies mobile data traffic has been growing at an unprecedented pace and increasingly surpassing the network capacity. Mobile data offloading is an effective network congestion demotion approach to solve the overload issue through opportunistic communication. It is a beneficiary approach, because there is no monetary cost for it. Subscribe Send Architecture and Opportunistic forwarding protocol plays a vital role during offloading by allowing users to subscribe the contents but does not download the subscribed content on the Content Service Provider thereby network traffic reduces up to a greater extent. A quantitative study on performance evaluation of opportunistic routing protocols like Epidemic, Spray and Wait, ProPhet and MaxProp are discussed in this paper. We have compared these protocols based on few performance metrics like overhead ratio, delivery probability and average latency. Our simulation results verify that MaxProp performs well and can offload cellular traffic effectively.
A Comparison of Direct Investment of Savings and Cash Building of Savings: A Response to Alexandru Patruti

When individuals save more and invest directly in projects there results capital accumulation and growth. When individuals save more in order to add to their cash holdings, consumer goods are liberated that can be used for capital accumulation causing also economic growth. At first sight, the processes seem similar. But are there differences? And if so, what are they? In this article and responding to Pătruți (2016), we will first emphasize that cash building does not necessarily stem from saving. Second, we will argue that cash building by saving does not necessarily imply a longer time period for capital accumulation to materialize. Third, we will criticize the argument that hoarding would be suboptimal vis-à-vis direct investment. Finally, we will analyze the differences between cash building by saving and saving through investing.
Graph-based SLAM on Normal Distributions Transform Occupancy Map

: Recent advances in Normal distributions transform occupancy map (NDT-OM) representation have proven to be a viable option for mapping static as well as dynamic environments. Scan registration methods using NDT maps oﬀer a fast and reliable way of registering two laser scans. In this work, we combine 2D NDT mapping and scan matching with the graph-based representation of simultaneous localization and mapping (SLAM). This novel approach uses NDT mini-maps for partial map storage inside the pose graph nodes. It also includes fast incremental scan matcher for odometry estimation. The scan matcher allows to create larger mini-maps which oﬀer better loop closure validation. This work also presents a novel robust distribution to distribution (D2D)-NDT scan matching. It is used for loop closure registration and validation of correct matches. The implementation can operate as an online algorithm inside the Robot Operating System (ROS) framework. The algorithm was tested on MIT Stata Center datasets.