Miracle-dz/UniFAR-FTUs huggingface dataset:
From Teaching to Implementing Inventory Management: Problems of Translation

This article addresses the problems, difficulties, pitfalls, and drawbacks in inventory management, from teaching and research in academia to applying, installing, and successfully using inventory systems in practice. Some guidelines and suggestions are offered to students, teachers, analysts, users and managers of inventory systems. Several of these guidelines are not uniquely associated with inventory management but apply equally well to the entire OR/MS area. This article is to some extent based on the discussions of a symposium with the same title that the authors organized and participated in during the 11th National Meeting of the American Institute for Decision Sciences, New Orleans, November 1979.
Relay-Assisted Free-Space Optical Communication

Inthis paper, wepresent relay-assisted transmission asapowerful fading mitigation tool forfree-space optical systems operating inatmospheric turbulence channels. We studyboth serial (i.e., multi-hop transmission) andparallel (i.e., cooperative diversity) decode-and-forward relaying. We consider anaggre- gatedchannel modelwhichtakes into account bothpath-loss and turbulence-induced log-normal fading. Sincefading variance is distance-dependent infree-space optical systems, relay-assisted transmission takes advantage oftheshorter hopsandbrings sig- nificant performance improvements. We havederived closed form expressions foroutageprobability oftherelaying schemes under consideration whicharefurther confirmed through Monte-Carlo simulations. Ouroutageprobability analysis demonstrates that animpressive performance improvement of18.5dBispossible withtheuseofasingle relay atatarget outageprobability of 10-6.
Real-Time Implementation of Modified Fuzzy Logic Controller for a Non-Linear Quasi-Resonant DC-DC Converter

This paper describes the design and implementation of Modified Fuzzy Logic Controller (MFLC) for a non-linear quasi-resonant converter (QRC). It is shown that the two-dimensional rule table of conventional FLCs (CFLCs) used in power converters can be reduced to one-dimensional rule table using MFLC. The proposed MFLC reduces the memory space and computing time of the fuzzy algorithm. The tuning of scaling factors and the generation of fuzzy rules is also easier when compared with CFLC. As a result, realizing MFLC in a Microcontroller or Digital Signal Processor is made simple. The proposed controller structure is universal and it can be directly applied to any of the dc-dc converter topologies. In this paper, the application of MFLC is successfully verified for the voltage control of Extended Period (EP)-ZCS/ZVS-QRC through simulation and experimental studies using TMS320F2407A Processor. The ability of MFLC compared to CFLC, to achieve good transient response for load variations and supply disturbances are demonstrated.
Fast optical wavelength interrogator employing arrayed waveguide grating for distributed fiber Bragg grating sensors

A new type of interrogator for distributed fiber Bragg grating (FBG) sensors that employs an arrayed waveguide grating (AWG) is proposed and its operating features are in detail investigated both theoretically and experimentally. The remedy for achieving the linear characteristics of wavelength detection as well as for insuring the reliable and environmentally stable operation of interrogation is proposed and its usefulness is demonstrated in good agreement with the experimental results. The developed interrogator consists of a fully passive, small, all-solid, rugged optical IC and can detect wavelengths of a great number of FBG sensors with high precision better than 0.5 pm and high speed.
Analysing Students Performance and Knowledge Creation at Master's Level in Flip Mode Classroom

Flipped classroom is a blended learning strategy that reverses the traditional educational arrangement by delivering instructional content, often online, outside of the classroom and moves activities, including those that may have traditionally been considered homework, into the classroom. A mixed study is conducted at Masters Level to analyse the student's performance and Knowledge creation in a flipped model of teaching-learning. Results from both qualitative and quantitative Educational data mining techniques are used to support the study. A discussion follows stating the implications for the adopting flipped model of teaching in higher education.
STAT3 Promotes Cell Proliferation by Potentiating the CCL4 Transcriptional Activity in Diffuse Large B-Cell Lymphoma

Signal transducer and activator of transcription 3 (STAT3) is a transcription factor and a candidate therapeutic option for human cancers. However, the underlying mechanism of STAT3 in the pathogenesis of diffuse large B-cell lymphoma (DLBCL) is yet to be established. We studied here whether STAT3 contributes to C-C motif chemokine ligand (CCL4) transcription elevation in DLBCL. Our established protein-protein interactions network revealed the overexpression of STAT3 and CCL4 in DLBCL. Mechanistically, STAT3 activated CCL4 transcription to induce the Wnt/β-catenin pathway. The prognostic analysis exhibited that the overall survival of patients with high STAT3 and CCL4 were poorer than those with low STAT3 and CCL4 expression. In addition, silencing of STAT3 reverted the malignant phenotype in DLBCL cells. CCL4 overexpression partly weakened the si-STAT3-mediated antitumor effects on DLBCL cells. Tumor xenograft models showed that si-STAT3 inhibited tumor growth in vivo and decreased proliferative and mitogenic activities in tumor tissues, which was consistent with the in vitro data. Hence, this study provides new evidence that STAT3 and CCL4 may be new prognostic biomarkers and therapeutic targets for treating DLBCL.
Sleep pattern gender differences and fragmentation in postpartum parents of twins

Objective Parents of newborn twins are at risk for both shortened sleep duration and sleep discontinuity. The purpose of this study was to characterize weekday and weekend sleep duration, sleep continuity, and awakenings in both mothers and fathers of newborn twins during the first 3 months at home. Material and Methods Sleep-wake parameters were assessed at two time points using self-report diaries and actigraphy in 75 families with newborn twins. To assess sleep on weekdays and weekends with minimal subject burden, actigraphy recordings of both parents commenced at 9:00 p.m. Saturday and terminated at 9:00 p.m. Tuesday. Results Mean sleep duration over 24 hours for parents of twins ranged between 6.7 and 7.5 hours during the first 3 months postpartum and did not significantly differ on weekdays or weekends for mothers. Weekend sleep was more fragmented for fathers at both one month and three months with more awakenings, compared to weekday sleep. Mothers had more fragmented night sleep compared to fathers at one month. In contrast, at three months postpartum fathers had shorter total sleep time and night sleep time, but fewer night awakenings on weekdays than mothers. No differences were observed in weekend sleep duration or sleep patterns between mothers and fathers at three months. Discussion Consolidated sleep periods for both parents averages three hours or less during the first three months postpartum and sleep for both parents is fragmented. In families with newborn twins, the extent of sleep disruption for mothers and fathers is similar.
Design of Active Structural Acoustic Control Systems Using EigenassignmentApproaches

(ABSTRACT) Active structural acoustic control (ASAC) in conjunction with the adaptive feedforward control has been proved to be an efficient practical approach to reduce structure-borne sound. ASAC works on the principles of reducing the vibration amplitude of the structure (modal reduction), as well as changing the vibration distributions of the structure so that the vibration distributions of each structural modes destructively interfere with one another in their associated radiating acoustic field (modal restructuring). Based on these observations, two different but related design strategies, namely the non-volumetric design and the minimum supersonic wavenumber design, were developed for designing efficient ASAC system. The eigenassignment method for feedforward control system serves as the fundamental design tool for both formulations. In this study, the dynamic characteristics of a multiple-input, multiple-output (MIMO) feedforward controlled system was investigated both analytically and experimentally on a simply supported plate under harmonic excitation. It was demonstrated that, when the control system has equal number of control inputs and error sensor outputs, the feedforward controller can effectively modify the system dynamics (i.e., resonance frequencies and mode shapes). This provides the theoretical basis for the eigenassignment method. For the non-volumetric design, the single-input, single-output (SISO) eigenassignment technique is used to modify the eigenproperties of a planar structure using structure actuators and sensors so that all the controlled modes are non-volumetric (inefficient sound radiators at low frequencies, i.e., k 0 a 1), leading large global sound attenuation in the far field. The effectiveness of this formulation was demonstrated through numerical simulations for the control of radiation from simply supported and clamped-free beams. The experimental validation of the non-volumetric design was also carried out on a simply supported beam using PZT actuators and shaped PVDF film as error sensor. The filtered-x LMS algorithm was used in the experiment. Excellent global sound attenuation was achieved in the low frequencies. The minimum supersonic wavenumber design stems from the fact that only supersonic wavenumber components of the structural velocity spectra radiate to the far field. A SISO eigenassignment technique is used to modify the eigenproperties of a planar structure so that the eigenfunctions of the controlled system have minimum supersonic wavenumber in the frequency range of study. The sound pressure or sound power radiated by the structure is therefore reduced. The design was demonstrated on a simply supported beam to minimize the supersonic wavenumber components contributed by the odd-order modes only. Significant global sound attenuation was …
Hopscotch: Robust Multi-agent Search

The task of searching a space is critical to a wide range of diverse applications such as land mine clearing and planetary exploration. Because applications frequently require searching remote or hazardous locations, and because the task is easily divisible, it is natural to consider the use of multi-robot teams to accomplish the search task. An important topic of research in this area is the division of the task among robot agents. Interrelated with subtask assignment is failure handling, in the sense that, when an agent fails, its part of the task must then be performed by other agents. This thesis describes Hopscotch, a multi-agent search strategy that divides the search area into a grid of lots. Each agent is assigned responsibility to search one lot at a time, and upon completing the search of that lot the agent is assigned a new lot. Assignment occurs in real time using a simple contract net. Because lots that have been previously searched are skipped, the order of search from the point of view of
METERED-DOSE INHALERS: DO HEALTH CARE PROVIDERS KNOW WHAT TO TEACH?

This study confirms that a large percentage of patients use MDI improperly. It also demonstrates a significant lack of understanding by health care providers of the proper use of MDI. Furthermore, this study supports the use of respiratory care practitioners in the outpatient setting, since they were the most proficient among all the health care providers in the proper use of MDI.
A Novel Method Mixed Power Flow in Transmission and Distribution Systems by Using Master-Slave Splitting Method

Abstract Traditionally, transmission and distribution power flows are studied and developed separately. In order to face keen competition in the market, the coordinated operation between transmission and distribution systems is required. Therefore, in order to balance the boundary mismatch between the transmission and distribution system models existing in the results of traditional power-flow methods, the transmission and distribution systems are studied as a whole in this article. A novel master–slave splitting iterative method is developed for solving the hybrid mixed power-flow problem. Several case studies are carried out, and the accuracy, convergence, efficiency, and reliability of the proposed method are validated.
The Application of Principal Component Analysis (PCA) for the Optimization of the Conditions of Fabrication of Electrospun Nanofibrous Membrane for Desalination and Ion Removal

Nowadays, acquiring a water supply for urban and industrial uses is one of the greatest challenges facing humanity for ensuring sustainability. Membrane technology has been considered cost-effective, encompasses lower energy requirements, and at the same time, offers acceptable performance. Electrospun nanofibrous membranes (ENMs) are considered a novel and promising strategy for the production of membranes that could be applied in several treatment processes, especially desalination and ion removal. In this study, we apply an unsupervised machine-learning strategy, the so-called principal component analysis (PCA), for the purpose of seeking discrepancies and similarities between different ENMs. The main purpose was to investigate the influence of membrane fabrication conditions, characteristics, and process conditions in order to seek the relevance of the application of different electrospun nanofibrous membranes (ENMs). Membranes were majorly classified into single polymers/layers, from one side, and dual multiple layer ENMs, from another side. For both classes, variables related to membrane fabrication conditions were not separated from membrane characterization variables. This reveals that membranes’ characteristics not only depend on the chemical composition, but also on the fabrication conditions. On the other hand, the process conditions of ENM fabrication showed an extensive effect on membranes’ performance.
Optimal Channel Choice under Stochastic Demand with Multiplicative and Additive Shocks

Based on the framework of Stackelberg game, we analyze and compare the optimal channel choices for the manufacturer and the retailer under consignment contract, when the demand is stochastic with uniformly distributed shock in multiplicative and additive forms respectively. We find that the price elasticity, range of demand fluctuation and the revenue sharing ratio affect the optimal channel choices for the manufacturer and the retailer differently under different forms of stochastic demand shocks.
Lowland Stream Restoration in Denmark: Background and Examples

Since 1982, Danish legislation on streams and drainage has included clauses which make it possible to implement river restoration. In this paper, the Danish shift in policy from drainage to the return of wetlands is described. To illustrate the new beginning on catchment management, two major river‐restoration schemes, i.e. the River Brede demonstration project and the River Skjern Nature project, are presented. Both projects have been implemented and consist of many parts, including (a) returning the straight, regulated rivers back to their former meanders, (b) introducing better hydraulic interaction between the river and its meadows, and (c) establishing former lakes, bogs, ponds and marshes. Also, an increase in security against flooding has resulted, as the regulated ‘water‐motorways’have become more natural, with buffer‐zones and retention of water in the restored features.
Speech Impairment in Parkinson’s Disease: Acoustic Analysis of Unvoiced Consonants in Italian Native Speakers

The study of the influence of Parkinson’s Disease (PD) on vocal signals has received much attention over the last decades. Increasing interest has been devoted to articulation and acoustic characterization of different phonemes. Method: In this study we propose the analysis of the Transition Regions (TR) of specific phonetic groups to model the loss of motor control and the difficulty to start/stop movements, typical of PD patients. For this purpose, we extracted 60 features from pre-processed vocal signals and used them as input to several machine learning models. We employed two data sets, containing samples from Italian native speakers, for training and testing. The first dataset - 28 PD patients and 22 Healthy Control (HC) - included recordings in optimal conditions, while in the second one - 26 PD patients and 18 HC - signals were collected at home, using non-professional microphones. Results: We optimized two support vector machine models for the application in controlled noise conditions and home environments, achieving 98%±1.1 and 88%±2.8 accuracy in 10-fold cross-validation, respectively. Conclusion: This study confirms the high capability of the TRs to discriminate between PD patients and healthy controls, and the feasibility of automatic PD assessment using voice recordings. Moreover, the promising performance of the implemented model discloses the option of voice processing using low-cost devices and domestic recordings, possibly self-managed by the patients themselves.
Interdependent Response of Networked Systems

Continuous functionality of critical infrastructure systems is essential to support the social and economic organization of productive sectors within a country. Electric power, potable water, natural gas, telecommunications, and transportation are examples of these critical systems, whose nature makes them suitable for network analysis. This study presents the topological characterization of two interdependent small-sized real networks. The same properties are calculated for ideal models of comparable size to the real networks. Selected topological properties are monitored for these interdependent systems when subjected to external or internal disruptions (e.g., deliberate attacks, malfunction due to aging, or lack of maintenance). This study introduces a simple rule to establish interdependencies among network elements based upon geographical proximity. The effect of the degree of coupling between networks is investigated with a tunable parameter that drives the networks from independence to complete interdependence. Network detrimental responses are observed to be larger when interdependencies are considered after disturbances. Effective mitigation actions could take advantage of the same network interconnectedness that facilitates cascading failures.
GASTOS PÚBLICOS EM INFRAESTRUTURA E POBREZA: UMA ANÁLISE PARA O ESTADO DE MINAS GERAIS

O objetivo do presente trabalho é analisar a relação entre gastos públicos em infraestrutura e o nível de pobreza nos municípios do estado de Minas Gerais. Para a análise dessa relação, foi utilizado um modelo de dados em painel estático estimado por efeitos fixos. A proxy utilizada para representar a pobreza nesta pesquisa foi a taxa de famílias cadastradas no Cadastro Único com renda per capita até 1/2 salário mínimo por 100.000 habitantes durante o período 2015-2017. Os resultados denotam relação inversa entre gastos públicos em infraestrutura e nível de pobreza nos municípios do estado de Minas Gerais no período supracitado, ou seja, para cada real destinado em gastos públicos em infraestrutura, há uma redução de 0,000407 na taxa de pobreza desses municípios.
The superior eyelid crease approach with retroseptal dissection: A modified access to the superomedial intraconal space. Treatment of a cavernous hemangioma: Case report and literature review

The orbit can be affected by primary intraconal lesions as well as cavernous hemangiomas. This article illustrates for the first time the retroseptal dissection (RD) route combined to the superior eyelid crease approach (SECA) to treat a symptomatic hemangioma inside the superomedial intraconal space. It also reviews the main studies about the argument. A 42-year-old woman affected by a mild painful proptosis and some accommodation difficulties in her right eye. The magnetic resonance imaging revealed a soft intraconal mass in the superomedial quadrant of the right orbit. The lesion was removed performing a SECA with RD through an incision inside a natural eyelid crease. Disappearance of pain with an improvement of accommodation was reported immediately. During the whole follow-up, the visual acuity, field examinations, and ocular motility did not reveal any impairment. Our approach represents a valid, quick, not technically demanding and mini-invasive method to access the superomedial intraconal space. Finally, it gives excellent functional and cosmetic results.
Compliance of WHO Surgical Safety Checklist at a Pediatric Surgical Unit in a Tertiary Level Hospital: A Descriptive Cross-sectional Study

ABSTRACT Introduction: The surgical safety checklist by World Health Organization has been used for the last two decades. There is every chance of unwanted expected disasters in operating-room in pediatric-surgical cases. Our study is to observe the utilization of the safety checklist in a tertiary level pediatric surgery unit in Nepal. Methods: A descriptive cross-sectional study was done at Nepal Medical College Teaching Hospital from January 2021-June 2021 with record-based data of children from 0-15 years operated in Pediatric Surgery unit from March 2017-July 2018. Ethical approval (Reference number: 049-077-078) was taken from the Institution review committee of the institute. Convenience sampling was done. Selfdesigned Pro-forma with demographic data along with World Health Organization-Surgical-safety-checklist used was collected and entered in Microsoft-Excel. Data were analyzed using Statistical-Package-for-the-Social-Sciences-version-25. Point estimate at 95% Confidence Interval was done along with frequency and proportion for binary data. Results: Out of 267 cases enrolled, 103 (38.6%) (35.6-41.6 at 95% Confidence Interval) were fully compliant with the checklist, 69 (25.8%) partially compliant. Among compliant cases, 148 (55.4%) Sign-in part, 128 (47.9%) cases -Time-out part and 152 (56.9%) cases Sign-out part were complete. Conclusions: Compliance with World Health Organization-Surgical-safety-checklist has a major role in preventing morbidity and mortality in Pediatric surgical cases. With proper use of the checklist, the unwanted never-events can be prevented with better surgical outcomes.
Improving f/sub MAX//f/sub T/ratio in FinFETs using source/drain extension region engineering

A design methodology to optimise the ratio of maximum oscillation frequency to cutoff frequency, fMAX/fT, in 60 nm FinFETs is presented. Results show that 25 to 60% improvement in fMAX/fT at drain currents of 20–300 µA/µm can be achieved in a non-overlap gate-source/drain architecture. The reported work provides new insights into the design and optimisation of nanoscale FinFETs for RF applications.
Explore deep auto-coder and big data learning to hard drive failure prediction: a two-level semi-supervised model

Predicting impending failure of hard disk drives (HDDs) is crucial to avoid losing essential data and service downtime. However, most HDD failure prediction is being challenged by using labelled data itself to evaluate failure rate, while the fact that HDDs deteriorate gradually cannot be described and exploited suitably. Most works on the Self-Monitoring and Reporting Technology (SMART) system attributes utilize simple and traditional methods from machine learning and statistics to achieve HDD failure prediction. So, we propose a novel two-level prediction model Dab, hard Drive failure prediction based on deep Auto-coder and Big data learning, to exploit SMART data for better online HDD failure prediction, constructing detection sub-models of anomaly and health degree. With better accuracy, better performance, better prediction earnings, and proactive fault tolerance, Dab has reduced false alarm rate (FAR) and maintenance cost, and improved failure detection rate (FDR), reliability and robustness of large-scale storage systems.