Miracle-dz/UniFAR-FTUs huggingface dataset:
ScienceDirect IUTAM Symposium on Nonlinear and Delayed Dynamics of Mechatronic Systems Dynamics of cutting near double Hopf bifurcation

Bifurcation analysis of the orthogonal cutting model with cutting force nonlinearity is presented with special attention to double Hopf bifurcations. The normal form of the system in the vicinity of the double Hopf point is derived analytically by means of center manifold reduction. The dynamics is restricted to a four-dimensional center manifold, and the long-term behavior is illustrated on simplified phase portraits in two dimensions. The topology of the phase portraits reveal the coexistence of periodic and quasi-periodic solutions, which are computed by approximate analytical formulas. c © 2017 The Authors. Published by Elsevier B.V. Peer-review under responsibility of organizing committee of the IUTAM Symposium on Nonlinear and Delayed Dynamics of Mechatronic Systems.
Distinguishing between prelexical levels in speech perception : an adaptation-fMRI study

Behavioural studies of speech perception indicate a dissociation of acoustic-phonetic and a more abstract level of prelexical processing. Here we used functional magnetic resonance imaging, in combination with an adaptation paradigm to distinguish between the neural correlates of acoustic-phonetic and phonological processing of the fricative speech sounds [S] and [s] by Dutch listeners. To manipulate the perceived quality of the fricatives while keeping their acoustic properties constant, we varied the sounds’ vowelcontext: Dutch listeners are more likely to classify an ambiguous fricative from an [S] – [s] continuum as [S] when it is followed by [i], and as [s] when it is followed by [y] (Smits, 2001a). Syllable pairs were presented consisting of an [S], an [s], or an ambiguous fricative, followed by an [y] or an [i] vowel. The most ambiguous fricative was identified individually for each subject in a pretest. During the fMRI scanning session syllable pairs were presented rapidly and randomly intermixed. A sparse scanning paradigm was used, in which auditory stimuli were presented during silent gaps between image acquisitions. We hypothesized that syllable pairs in which the fricatives were perceived as the same would lead to larger adaptation in brain regions responsible for phonological processing as compared to syllable pairs in which the fricatives were perceived as different. Distinct fMRI adaptation patterns were observed corresponding to acoustic-phonetic and phonological processing respectively, supporting the functional distinction between these processing levels. No cortical regions showed both patterns: the cortical regions underlying the acoustic-phonetic and phonological stages in prelexical processing appear to be anatomically distinct.
Determinants of R & D Behavior of Foreign Firms in India

In the recent past researchers have observed paradigm shifts in the location and nature of R&D activities undertaken by multinationals in host countries. India is one of the host countries for the R&D activities of foreign firms from developed countries like the USA. Hence, the objective of this study is to understand the factors that determine the R&D behavior of foreign firms operating in India. The data used for the analysis is secondary data extracted from Prowess database of Centre for Monitoring Indian Economy. Econometric analysis is carried out on a panel data consisting of foreign affiliated firms for a period of five year from 2011 to 2015. The preliminary results of the random effects Tobit analysis indicate that the traditional variables like size of the firm and age of the firm are important in determining R&D intensity even in the case of foreign firms. Further analysis is carried out using Heckman two-step econometric specification to understand the factors that determine the decision to invest on R&D and the factors that affect R&D intensity of the foreign firms operating in India. The results of the econometric analyses reveal that other factors like labor intensity, sales and distribution intensity, outsourcing intensity are also relevant in determining R&D activities of the foreign firms.
Application of groundwater functional zoning to coastal groundwater management : a case study in the plain area of Weifang City , China

As a useful index-based evaluation framework, groundwater functional zoning (GWFZ) presents a very positive effect on groundwater management at a regional scale due to its concise results. Currently, the GWFZ lacks definition and detailed processes, hence requiring a systematic structure to offer more knowledge bases to the methodology. A typical study area (Weifang City) characterized by a coastal zone and relying on groundwater supply, as well as the occurrence of groundwater-derived geo-environmental issues, was chosen. We provided a detailed index-based GWFZ method by focusing on the assessment of the resource supply function (RSF) and geo-environment stability function (GSF), with a good understanding of the hydrogeological conditions in the selected area. The RSF was assessed by delineating the potential area of groundwater exploitation, while the GSF was evaluated by identifying the vulnerability of geo-environmental issues. By integrating the RSF and GSF into the GIS environment, the study area was finally divided into five functional sub-areas: concentrated groundwater supply area (1.08%), decentralized groundwater supply area (18.36%), vulnerable geo-environment area (11.78%), unsuitable to exploit groundwater area (14.11%), and recharge protection area (54.67%). Seven groundwater exploitation boreholes in the plain area were validated to be unreasonable with regard to mining scale, which indicates a connection with the inland saltwater intrusion boundary in recent years. With simple data acquisition methods and concise results, GWFZ is of great benefit to groundwater management and can be further applied in other regional studies.
Verification of solid hydrometeor properties simulated by a cloud resolving model using passive microwave radiometer and radar observations

Cloud resolving models (CRMs) with complicated cloud microphysical parameterizations explicitly predict various hydrometeors at high time and space resolution; therefore, CRMs serve as valuable tools for satellite remote sensing of precipitation for inferring information about precipitating clouds that cannot be directly observed. However, cloud microphysical validation of CRMs has not sufficiently been carried out. In this study, a CRM, the Japan Meteorological Agency (JMA) nonhydrostatic mesoscale model (JMANHM, Saito et al. 2006) is used to simulate typical moderate rainbands associated with the Baiu front observed around the Okinawa Islands, Japan on 8 June 2004. Microwave brightness temperatures (TBs) and equivalent radar reflectivities are derived from the model output, and are then compared to concurrent corresponding satellite radiometer (AMSR-E, Kawanishi et al. 2003) and ground-based radar (COBRA, Nakagawa et al. 2003) observations. The objectives of this study are to verify the two-moment bulk microphysics of the JMA-NHM and to examine some of the microphysical sensitivities. Special attention is given to the characteristics and sensitivities of frozen hydrometeor properties simulated by the JMA-NHM.
Clinical Study Relationship between Tibial Baseplate Design and Rotational Alignment Landmarks in Primary Total Knee Arthroplasty

This study evaluated the influence of modern tibial baseplate designs when using the anterior tibial cortex as a primary rotational landmark for the tibial baseplate in TKA. Eighty patients undergoing TKA were randomized in two groups. Group 1 included 25 females and 15males receiving a posterior-stabilized (PS) symmetric tibial baseplate whileGroup 2 included 24 females and 16males receiving a PS anatomical tibial component. Identical surgical technique, including the use of the surgical transepicondylar femoral axis (sTEA) and the anterior tibial cortex (“Curve-on-Curve”) as rotational alignment landmarks, was used. All patients underwent CT evaluation performed with the knee in full extension.Three observers independently measured the rotational alignment of the tibial component in relation to the sTEA.The rotational alignment of the symmetric baseplate showed an average external rotation of 1.3 (minimum 5, maximum −1): 91% of the knees showed 0 ± 3 with respect to the surgical sTEA, being internally rotated in 20%. The rotational alignment of the anatomical baseplate showed an average external rotation of 4.1 (minimum 0.4, maximum 8.9): only 47.5% of the knees showed 0± 3, being externally rotated in 100%. The difference between the two groups was statistically significant. This study confirms the reliability of the “Curve-on-Curve” technique as an adequate rotational alignment anatomical landmark in TKA: the use of an asymmetric tibial baseplate might lead to external rotation of the tibial component when this technique is intraoperatively chosen.
Population a RAPD markers in

Melia azedarach L is ecologically imperative species growing in Thar Desert. Biological effects such as antiviral, anthelminthic, antibacterial, etc. makes it important, yet a little is known about its genetic diversity and structure. In this study, we employed 30 RAPD primers for DNA profiling of 91 individuals representing 14 geographically isolated populations. A total of 104 bands were scored with an average of 3.5 bands per primer. The PIC ranged from 0.1898 to 0.5000 with an average of 0.4365. Nei’s genetic diversity (h) and Shannon’s information index (I) ranged from 0.0112 to 0.4997 and 0.0348 to 0.6928 respectively with average Nei’s genetic diversity of 0.2597. The gene flow (Nm) 0.9702 and the genetic diversity of 0.2586 at species level demonstrated overall high level of genetic diversity. Cladistics analysis using DARwin and Bayesian cluster analysis using STRUCTURE placed 91 individuals into two main clusters or original genetic stocks (K = 2) which show little or no association with the geographic origin. The lack of clear assignment of individuals to geographical regions of sampling and consideration of different populations in the same genetic cluster suggests a recent common evolutionary history. Key message: M. azedarach is a good reforestation tree because of its fast growth and drought hardy nature. This study adds a foundation for more precise inference about the biogeography and management in the reforestation projects in the Thar Desert.
2 Stochastic Actor-Based Models for Network Dynamics

Research utilizing the perspective of social networks can shed important light on political processes, as is illustrated by the other articles in this issue and also the special issue Social Networks and American Politics of American Politics Research (Heaney and McClurg, 2009). This perspective offers some complications for statistical analysis, however. A network approach is so useful because it can represent the interdependence between political actors (see Huckfeldt, 2009) – but statistical modeling is commonly based on independence assumptions. The challenge in statistical modeling of social network data is to represent the dependencies between network ties so that valid inferences can be obtained and misspecification avoided; and, by doing so, to provide methods that allow researchers to test hypotheses about these interdependencies.
10-2018 Battery-Free Eye Tracker on Glasses

This paper presents a battery-free wearable eye tracker that tracks both the 2D position and diameter of a pupil based on its light absorption property. With a few near-infrared (NIR) lights and photodiodes around the eye, NIR lights sequentially illuminate the eye from various directions while photodiodes sense spatial patterns of reflected light, which are used to infer pupil’s position and diameter on the fly via a lightweight inference algorithm. The system also exploits characteristics of different eye movement stages and adjusts its sensing and computation accordingly for further energy savings. A prototype is built with off-the-shelf hardware components and integrated into a regular pair of glasses. Experiments with 22 participants show that the system achieves 0.8-mm mean error in tracking pupil position (2.3 mm at the 95th percentile) and 0.3-mm mean error in tracking pupil diameter (0.9 mm at the 95th percentile) at 120-Hz output frame rate, consuming 395μW mean power supplied by two small, thin solar cells on glasses side arms.
An Evaluation of the Effects of Two Chronic Immobilization Stress Protocols on Depression/Anxiety- Related Behavior in Male Rats

Objective: The effect of acute and chronic stress models on depression and/or anxiety-like behavior in rodents has been widely studied, but with contradictory results. This may be due to differences in the sex and age of the animals studied or inherent differences in the stress models used. Therefore, this study aimed to evaluate the effects of two immobilization stress protocols on depression/anxiety-like behaviors in adult male rats. Materials and Methods: Adult Wistar rats were randomly divided into three groups (n=10) comprising: control, immobilization stress-1 (45 minutes daily for a period of ten days), and immobilization stress-2 (45 minutes twice a day for a period of ten days). Stress-related behavior was evaluated by means of the open field and forced swim tests. In addition, change in body weight, fasting blood glucose, and serum corticosterone were measured. Results: In the open field test, the percentage of time spent in the central area and mean velocity were significantly lower in the immobilization stress-1 and immobilization stress-2 groups as compared to the control group (p < 0.05 and p < 0.01, respectively). Movement ratios were lower in both immobilization stress groups than in the control group (p < 0.001 and p < 0.01, respectively). In the forced swim test, the duration of swimming, climbing and immobility behavior in both immobilization stress protocols did not differ from the control group. Serum corticosterone levels were higher in the immobilization stress-1 and immobilization stress-2 groups than in the control group (p <0.05), but no overt differences were determined in the percentage change in body weight or the fasting blood glucose level between the stress protocol groups and the control group (p > 0.05). Conclusion: We may conclude that immobilization stress-1 and immobilization stress-2 protocols do not cause depression-like behavior in adult male rats. However, anxiety-like behaviors predominated in both stress protocol groups.
Image sequence restoration and deinterlacing by motion-compensated Kalman filtering

In this paper we address the following two problems: (1) restoration of noisy and blurred progressively scanned image sequences, and (2) simultaneous restoration and de-interlacing of noisy and blurred interlaced image sequences. De-interlacing refers to the conversion of an interlaced image sequence to a progressive one. We first formulate a Kalman filtering algorithm for image sequence restoration, and then apply this algorithm to the simultaneous de-interlacing and restoration problem. To use Kalman filtering for image sequence restoration effectively, the temporal information contained in the image sequence needs to be incorporated into the problem formulation. One method of quantifying the new information inherent in an image sequence is to estimate the motion between successive frames of the sequence. We use this method, and incorporate the motion information into the Kalman filter through the observation equation. To restore frame k of an image sequence, an autoregressive (AR) model for the k'th frame is used, along with observations coming from both frame k and a previously restored and motion compensated frame k-1.
Mutual fund tournament test : Do shareholders benefit from fund managers ’ risk-taking behavior

This paper examines the relationship between performance and risk exposure for mutual funds. Our preliminary analysis fails to support the tournament hypothesis, which predicts that poorly performing managers will increase risk exposure while outperforming managers will decrease risk exposure. Instead, we find evidence of risk reduction for extreme losers and risk increase for winning managers. Besides, the risk-taking fails to align manager interest with shareholder interest since the returns from the risk enhancement by winners and the risk reduction by losers is relatively worse than those with contradictory strategies. Overall, the competition among fund managers appears to affect management risk choice, and in turn has an effect on future performance. However, the effect of shifting risk on fund performance and the approach of altering portfolio risk vary with fund style and prior performance.
Machine Learning for Humanitarian Data: Tag Prediction using the HXL Standard

Advances in natural language processing and machine learning (ML)enable the automation of humanitarian tasks that would traditionally require the expertise of a human expert.The labor-intensive process of data labeling requires crisis responders to spend valuable hours wrangling data instead of assisting with relief efforts. We present a machine learning model to predict tags for datasets from the United Nations Office for the Coordination of Humanitarian Affairs (UNOCHA) with the labels and attributes of the Humanitarian Exchange Language(HXL) Standard. This paper details the methodology used to predict the corresponding tags and attributes for a given data set with an accuracy of 94% for HXL header tags and an accuracy of 92% for descriptive attributes. Compared to previous work, our workflow provides a 14% accuracy increase and is a novel case study of using ML to enhance humanitarian data.
Frequency Reconfigurable Antenna Using Metasurface for Satellite Application

A frequency-reconfigurable antenna designed using metasurface (MS) to operate at around 5 GHz is studied and proposed. The frequency-reconfigurable metasurfaced (FRMS) antenna is composed of a simple circular patch antenna and a circular MS with the same diameter of 40 mm and implemented using planar technology. The MS is placed directly atop the patch antenna, making the FRMS antenna very compact and low profile with a thickness of only 3.048 The MS consists of rectangular-loop unit cells placed periodically in the vertical and horizontal directions. Simulation results show that the operating frequency of the antenna can be tuned by physically rotating the MS around the center with respect to the patch antenna. The MS placed atop the patch antenna behaves like a dielectric substrate and rotating the MS changes the equivalent relative permittivity of the substrate and hence the operating frequency of the FRMS antenna. Measured results show that the antenna has a tuning range from 4.76 to 5.51 GHz, a fractional tuning range of 14.6%, radiation efficiency and a realized peak gain of more than 80% and 5 dBi, respectively, across the tuning range. Keywords— MSMeta-Surface; FRMSFrequency Reconfigurable Meta-Surface; Unit cell.
Identifying Adverse Drug Events Mentions in Tweets Using Attentive, Collocated, and Aggregated Medical Representation

Identifying mentions of medical concepts in social media is challenging because of high variability in free text. In this paper, we propose a novel neural network architecture, the Collocated LSTM with Attentive Pooling and Aggregated representation (CLAPA), that integrates a bidirectional LSTM model with attention and pooling strategy and utilizes the collocation information from training data to improve the representation of medical concepts. The collocation and aggregation layers improve the model performance on the task of identifying mentions of adverse drug events (ADE) in tweets. Using the dataset made available as part of the workshop shared task, we show that careful selection of neighborhood contexts can help uncover useful local information and improve the overall medical concept representation.
INERTIAL MEASUREMENT UNIT TO DETERMINE MOORED VESSELS MOVEMENTS

Inertial Measurement Units (IMU) are usually employed to determine the dynamic positioning of vessels during navigation. However, this paper proposes a novel application of a self-made IMU to estimate the angular movements (roll, pitch and yaw) of a moored vessel. This IMU is equipped with three orthogonal gyroscopes and accelerometers capable of measure three of the six degrees of freedom of a floating body. The vessels dynamic behavior characterization inside the port has a major importance not only in the design of mooring and anchoring systems, but also in the optimization of operations. The oscillations of moored vessels and their interactions with anchoring systems are usually described using physical scale or numerical models. However, the study of moored ships under real conditions is less frequent. The proposed technique has been validated in laboratory conditions and successfully used in two different projects with field campaigns developed in the Outer and Inner Port of A Coruña (Spain). KEWORDS: Port operability, field campaign, IMU, mooring.
Effects of Joint Mobilization and Treatment Timing on the Glenohumeral Joint : A Pilot Study

Background & Purpose: To determine if timing of glenohumeral joint mobilizations during treatment sessions has an effect on range of motion and functional outcomes. Joint mobilization is a commonly implemented treatment by physical therapists to increase active and passive range of motion and function. The role that timing of mobilization during treatment plays on range of motion and function, however, is unknown. Methods: A convenience sample of 8 subjects who were under the care of licensed physical therapists were recruited and randomly assigned to either an early or late mobilization group. Active and passive range of motion measurements and a subjective functional questionnaire were taken at initial visit, 1-week, and 4-week followup. Findings: Mann-Whitney U found no statistically significant results. However, the late mobilization group demonstrated a trend toward greater median change for functional outcome measure. Clinical Relevance & Conclusion: Timing of joint mobilization did not produce a statistically significant difference in range of motion gains or functional scores. However, individuals receiving mobilization at the end of their treatment appeared to demonstrate a trend toward greater improvements in functional outcome scores. Further research needs to be conducted to confirm this trend.
A Think-Aloud Study about Medical Misinformation in Search Results

People increasingly rely on the internet in order to search for health related information. Searching for information about medical treatments is among the most frequent uses of search engines. While being a convenient and fast method to collect information, search engines have a content bias towards web pages stating that treatments are helpful, regardless of the truth. The presence of incorrect information in search results might potentially cause harm, especially if people believe what they read without further research or professional medical advice. In this paper, we aim to understand the decision making process of determining the efficacy of medical treatments using search result pages. We use a think-aloud study in order to gain insights on strategies people use during online search for health related topics. Results show that, even with verbalization, participants are still strongly influenced by a search results bias. Furthermore, people pay attention to majority, authoritativeness and content quality when evaluating online content. Rank and participants’ bias towards treatments being helpful are potential subconscious biases influencing the decision making process while using search engines.