Miracle-dz/UniFAR-FTUs huggingface dataset:
Inferring Commuting Routes and Transportation Modes from Call Detail Records

We can infer mobility patterns from opportunistic data like Call Detail Records. However, considering challenges like low spatial resolution and temporal sparsity of the calls, it is appropriate to subsample and prepare rigorously the dataset. We then propose an optimized methodology to infer commuting patterns like the origin/destination trips and the respective travel modes adopted. We examined the commuting patterns of 1500 users, along fourteen months of communications, in three different Portuguese cities – Lisbon, Porto and Coimbra. Coimbra is a small city where the private car remains the main travel mode choice while the other two cities are larger and have multiple options of travel modes. The results obtained were posteriorly validated by two Portuguese censuses.
On the Two-Ray Model Analysis for Overwater Links with Tidal Variations

This work explores the impact of antenna heights and polarization on overwater links during the cycle of tidal variations. We focus our attention on links of short-to-medium-range distances with antenna heights near-to-thewater-surface. The typical use-case for such a scenario is an overwater, water quality monitoring wireless sensor network. The radio propagation is simulated using a featured two-ray model that considers the relative permittivity of the water surface and the antenna polarization. The results show that the performance of overwater links may be better with lower antennas than higher antennas as well as with one polarization or the other, intuitively, during part of the tidal cycle. On the Two-Ray Model Analysis for Overwater Links with Tidal Variations Miguel Gutiérrez Gaitán, Luis Pinto, Pedro M. Santos, and Luis Almeida 1 CISTER Research Center/Polytechnic Institute of Porto, Portugal 2 Faculty of Engineering, University of Porto, Portugal {mjggt,pss}@isep.ipp. pt,{lda,lpinto}@fe.up. pt Abstract. This work explores the impact of antenna heights and polarization on overwater links during the cycle of tidal variations. We focus our attention on links of short-to-medium-range distances with antenna heights near-to-the-water-surface. The typical use-case for such a scenario is an overwater, water quality monitoring wireless sensor network. The radio propagation is simulated using a featured two-ray model that considers the relative permittivity of the water surface and the antenna polarization. The results show that the performance of overwater links may be better with lower antennas than higher antennas as well as with one polarization or the other, intuitively, during part of the tidal cycle. This work explores the impact of antenna heights and polarization on overwater links during the cycle of tidal variations. We focus our attention on links of short-to-medium-range distances with antenna heights near-to-the-water-surface. The typical use-case for such a scenario is an overwater, water quality monitoring wireless sensor network. The radio propagation is simulated using a featured two-ray model that considers the relative permittivity of the water surface and the antenna polarization. The results show that the performance of overwater links may be better with lower antennas than higher antennas as well as with one polarization or the other, intuitively, during part of the tidal cycle.
The Effect of a Maternal Role Promoting Program on Maternal- Infant Attachment, Maternal Role Satisfaction, Competency in Infant Behavioral Learning and Infant Growth

Abstract: Keywords: Maternal role, Infant massage, Attachment, Maternal role satisfaction The objective of this quasi experimental research was to examine the effect of a maternal role promoting program on maternal-infant attachment, maternal role satisfaction, competency in infant behavioral learning, and infant growth. Purposive sampling was used to recruit 60 pregnant women from Pregnancy Clinic of Ramathibodi Hospital. The sampling was devided equally into a control group and an experimental group. The control group received usual nursing care whereas the experimental group was given usual nursing care along with a maternal role promoting program developed by the researchers between July 2007 and February 2008. Data were collected using five sets of questionnaire. There were the Maternal-Unborn Infant Attachment, the Maternal-Infant Attachment, the Maternal Role Satisfaction, the Competency in Infant Behavioral Learning, and the Infant Growth Record. The study revealed that mean scores of maternal-infant attachment, maternal role satisfaction, and competency in infant behavioral learning at 6 weeks postpartum of the experimental group were significantly higher than those of the control group. In addition, weight and height of 6-week infants in the experimental group were significantly higher than those of the control group. The findings suggest that the maternal role-promoting program should be used to promote maternal-infant attachment, maternal role satisfaction, competency in infant behavioral learning and infant growth, which can enhance roles of first-time mothers.
High prevalence and two dominant host-specific genotypes of Coxiella burnetii in U . S .

Background: Coxiella burnetii causes Q fever in humans and Coxiellosis in animals; symptoms range from general malaise to fever, pneumonia, endocarditis and death. Livestock are a significant source of human infection as they shed C. burnetii cells in birth tissues, milk, urine and feces. Although prevalence of C. burnetii is high, few Q fever cases are reported in the U.S. and we have a limited understanding of their connectedness due to difficulties in genotyping. Here, we develop canonical SNP genotyping assays to evaluate spatial and temporal relationships among C. burnetii environmental samples and compare them across studies. Given the genotypic diversity of historical collections, we hypothesized that the current enzootic of Coxiellosis is caused by multiple circulating genotypes. We collected A) 23 milk samples from a single bovine herd, B) 134 commercial bovine and caprine milk samples from across the U.S., and C) 400 bovine and caprine samples from six milk processing plants over three years. Results: We detected C. burnetii DNA in 96% of samples with no variance over time. We genotyped 88.5% of positive samples; bovine milk contained only a single genotype (ST20) and caprine milk was dominated by a second type (mostly ST8). Conclusions: The high prevalence and lack of genotypic diversity is consistent with a model of rapid spread and persistence. The segregation of genotypes between host species is indicative of species-specific adaptations or dissemination barriers and may offer insights into the relative lack of human cases and characterizing genotypes.
Statistical Stability and Spatial Instability in Mapping Forest Tree Species by Comparing 9 Years of Satellite Image Time Series

Mapping forest composition using multiseasonal optical time series remains a challenge. Highly contrasted results are reported from one study to another suggesting that drivers of classification errors are still under-explored. We evaluated the performances of single-year Formosat-2 time series to discriminate tree species in temperate forests in France and investigated how predictions vary statistically and spatially across multiple years. Our objective was to better estimate the impact of spatial autocorrelation in the validation data on measurement accuracy and to understand which drivers in the time series are responsible for classification errors. The experiments were based on 10 Formosat-2 image time series irregularly acquired during the seasonal vegetation cycle from 2006 to 2014. Due to lot of clouds in the year 2006, an alternative 2006 time series using only cloud-free images has been added. Thirteen tree species were classified in each single-year dataset based on the Support Vector Machine (SVM) algorithm. The performances were assessed using a spatial leave-one-out cross validation (SLOO-CV) strategy, thereby guaranteeing full independence of the validation samples, and compared with standard non-spatial leave-one-out cross-validation (LOO-CV). The results show relatively close statistical performances from one year to the next despite the differences between the annual time series. Good agreements between years were observed in monospecific tree plantations of broadleaf species versus high disparity in other forests composed of different species. A strong positive bias in the accuracy assessment (up to 0.4 of Overall Accuracy (OA)) was also found when spatial dependence in the validation data was not removed. Using the SLOO-CV approach, the average OA values per year ranged from 0.48 for 2006 to 0.60 for 2013, which satisfactorily represents the spatial instability of species prediction between years.
How Does Family Firm Specific Top Management Team Diversity Affect CSR ( Full Paper Submission )

This paper examines the relationship between top management team characteristics and Corporate Social Responsibility (CSR) performance of family businesses. Focusing on three main diversity characteristics of family businesses, namely generation in charge, number of family members on Top Management Team (TMT), and number of generations working together, study revealed significant findings. According to results, family firm specific diversity’s effect on top management teams does not have significant impact on CSR performance. Furthermore, results indicate that while corporate governance related CSR issues are less prominent in family businesses, employee and environment related CSR issues are more
Plant-Mediated Enantioselective Transformation of Indan-1-one and Indan-1-ol. Part 2

The main purpose of this publication was to obtain the S-enantiomer of indan-1-ol with high enantiomeric excess and satisfactory yield. In our research, we used carrot callus cultures (Daucus carota L.), whereby the enzymatic system reduced indan-1-one and oxidized indan-1-ol. During the reaction of reduction, after five days, we received over 50% conversion, with the enantiomeric excess of the formed S-alcohol above 99%. In turn, during the oxidation of racemic indan-1-ol after 15 days, 36.7% of alcohol with an enantiomeric excess 57.4% S(+) remained in the reaction mixture. In addition, our research confirmed that the reactions of reduction and oxidation are competing reactions during the transformation of indan-1-ol and indan-1-one in carrot callus cultures.
Corruption Risks in Infrastructure Investments in Sub-Saharan Africa

The paper examines how Sub-Saharan African governments can reduce real and perceived corruption risks of transport and energy infrastructure projects. On one hand, there is rising interest by investors in projects co-financed by governments and development finance institutions (DFI). On the other hand, such complex contracting models increase the possibilities of concealing misconduct. Meanwhile, there is growing scrutiny around the world of issues relating to anti-bribery and corruption and an increasing risk of prosecution or debarment even for third-party misconduct. Consequently, real and perceived corruption risks discourage the mutually beneficial match of high return projects for private investors and closing Africa’s infrastructure gap. Desk research and expert interviews with key project stakeholders helped identify what they perceive as major corruption risks. These were categorised and illustrated by case examples. The overall key finding is somewhat counterintuitive. Potential private investors in public-private infrastructure projects in Sub-Saharan Africa do not regard the tender process as the highest corruption risk. Rather, they are highly concerned about the transparency environment of the project origination (project appraisal, selection, design and budgeting), because misconduct at this initial phase gives leeway for corruption at later project stages. This carries an important message for DFIs and other donors, who traditionally focus on promoting procurement reform. Together with host governments, they should instead award more attention to improving governance at the project preparation phase, as in most Sub-Saharan African countries these are carried out either poorly, or not at all. By recommending to reduce information asymmetry with investors on the project preparation, the paper urges policy-makers to better consider the perspective of investors in planning infrastructure projects.
Modelling of a MEMS transducer using approximate eigenfunctions of a square clamped plate

The model of electroacoustic MEMS transducer with a moving square shaped clamped plate loaded by a thin fluid gap and a peripheral cavity is presented herein. The behaviour of the transducer, namely the thermal and viscous boundary layers effects originating in the fluid gap between the moving electrode and the fixed one and the strong coupling between the moving electrode displacement and the acoustic pressure field in the fluid gap, have to be described correctly by the model. The modelling approach proposed herein involving the integral method for describing the acoustic pressure in the fluid gap requires an analytical expression of eigenfunctions of the square shaped clamped plate. Such an approximate expression in form of two-dimensional cosine series proposed recently suffers from slow convergence and inaccurate boundary conditions. The solution proposed herein is based on the series expansion over the system of functions satisfying exactly the boundary conditions, which leads to faster convergence, hence lowering computational costs. The proposed eigenfunctions are described and the difference from the previous approximations is discussed. Finally, the acoustic pressure sensitivity of the transducer is presented and compared to the results of a reference finite element model.
With or Without You ? The Influence of Search Partners on Consumer Behavior in Paid Search

Paid search is widely considered an effective marketing tool and as such has attracted much scholarly attention. Yet, current research does not account for one major decision every marketer faces when crafting a campaign: whether to solely rely on the search engine (e.g., Google) or include websites of so-called search partners (e.g., T-Online.de). This paper investigates whether search partners can be beneficial for bricks-and-mortar retailers. Our results indicate that consumers are less likely to click on a paid ad when searching on partner websites, compared to paid ads on a search engine’s website. However, after clicking on a paid ad, subsequent behavior remains unaffected regardless of whether the ad was shown on a partner’s or on a search engine website. Due to the pay-per-click billing this combination allows marketers to increase campaign reach at no additional costs. We conclude that bricks-and-mortar retailers would benefit from advertising on search partner websites.
"'Ruined and Lost': Spanish Destruction of the Pearl Coast in the Early Sixteenth Century"

Spanish overexploitation of both the oyster beds around the island of Cubagua and the native peoples along the by competing groups of and utilising archival research and Otte’s compilations primary analyses the dramatic but little-known history of the Pearl Coast, where damage to the environment went hand in hand with the enslavement and decimation of native populations. All
Characterization of the aeroacoustic instability in a T-junction

Aeroacoustic resonance at a T-junction is a well-known phenomenon that has been studied using a variety of different approaches. These include vortex-sheet modelling of the shear layer and Linearised Navier-Stokes Equations (LNSE) incorporating a turbulence model. The aeroacoustic instability results from the constructive interaction of the acoustic waves in the cavity and the turbulent shear layer. In the present study, measurements of the acoustic impedance of the shear layer and of the cavity are performed at different frequencies and mean flow velocities. These measurements are used to derive a linear model of the aeroacoustic instability and allow for analysis of linear stability.
New Genetic Operator for Dynamic Optimization

Recently, Genetic Algorithms (GAs) is interested to multimodal dynamic optimization (MDO). In this kind of optimization, an algorithm requires not only to find the multiple optimal solutions but also to locate a changing optimum dynamically. To enhance the performance of GAs in MDO, our paper proposes a New Genetic Operator (NGO) which called Fertlization. Our approach (NGO) is based on a novel Genetic Algorithms with Dynamic Niche Sharing (GADNS) to find the optimal solutions and to maintain the diversity of the population. An unsupervised fuzzy clustering method is used to track multiple optimums and to perform GADNS. The effectiveness of NGO in dynamic environments, is demonstrated by using Generalized dynamic benchmark generator (GDBG).
- 1-ISOTOPICALLY CONTROLLED SEMICONDUCTORS

Semiconductor bulk crystals and multilayer structures with controlled isotopic composition have attracted much scientific and technical interest in the past few years. Isotopic composition affects a large number of physical properties, including phonon energies and lifetimes, bandgaps, the thermal conductivity and expansion coefficient and spin-related effects. Isotope superlattices are ideal media for self-diffusion studies. In combination with neutron transmutation doping, isotope control offers a novel approach to metal-insulator transition studies. Spintronics, quantum computing and nanoparticle science are emerging fields using isotope control.
Development and validation of RP-HPLC method for pitavastatin calcium in bulk and formulation using experimental design

The optimization of HPLC method involves several variables whose influence has been widely studied. However, in most of the cases, only process variables are taken into account. In this work, the influence of mixture composition on peak quality parameters of Pitavastatin calcium in bulk and tablet dosage form has been studied using a mixture simplex design. A simplex centroid design with axial points in a pseudocomponent representation was generated from the pure mixture components. Twelve ternary mixture mobile phases corresponding to augmented design points were tested to separate the drug in sample. The statistical analysis was performed to generate the polynomial equation for each response. The desirability approach was used to determine the optimal mobile phase composition. Further, the method was validated as per the ICH guidelines using specificity, linearity, accuracy, precision, sensitivity, system suitability and robustness. The results of experimental design were statistically tested for full and in portion to get best fitted model which accurately describe changes in the proportion of these solvents in the mobile phase close to the region of optimal peak quality. The method demonstrated optimum chromatographic separation with isocratic elution of the mobile phase containing a mixture of acetonitrile-water (pH 3.0)-tetrahydrofuran (43:55:02, v/v/v) with a flow rate at 1.0 ml/min. Design of experiment optimization strategy is a powerful tool to acquire the maximum quality data while performing minimum number of experiments. The mobile phase composition was successfully optimized using simplex centroid mixture design with desirability approach. Additionally, developed method can be applied for routine quantitative analysis of Pitavastatin calcium in bulk and tablet dosage form as it was found to be simple, sensitive and robust.
Flexible flow shop scheduling problem to minimize makespan with renewable resources

This paper deals with a flexible flow shop (FFS) scheduling problem with unrelated parallel machines and renewable resource shared among the stages. The FFS scheduling problem is one of the most common manufacturing environment in which there is more than a machine in at least one production stage. In such a system, to decrease the processing times, additional renewable resources are assigned to the jobs or machines, and it can lead to decrease the total completion time. For this purpose, a mixed integer linear programming (MILP) model is proposed to minimize the maximum completion time (makespan) in an FFS environment. The proposed model is computationally intractable. Therefore, a particle swarm optimization (PSO) algorithm as well as a hybrid PSO and simulated annealing (SA) algorithm named SA-PSO, are developed to solve the model. Through numerical experiments on randomly generated test problems, the authors demonstrate that the hybrid SA-PSO algorithm outperforms the PSO, especially for large size test problems.
Nonlinear Dynamics of the Human Motor Control-Real-Time and Anticipatory Adaptation of Locomotion and Development of Movements -

Nonlinear dynamics of the neuro-musculo-skeletal system and the environment play central roles for the generation and the development of human bipedal locomotion and other movements. This paper highlights a global entrainment that produces adaptive walking, freezing and freeing degrees of freedom during motor development, and chaotic dynamics of spontaneous movements in early infancy.
Equal annoyance contours at frequencies 4 – 1000 Hz

Knowledge about annoyance caused by infrasound is limited. The purpose of our study was to determine equal annoyance contours (EACs) at frequencies 4 – 1000 Hz. A psychoacoustic experiment was conducted in a laboratory environment for seven participants. The participants rated annoyance of 60 sine tones. The sounds were played in 20 frequencies in range 4 – 8000 Hz with sound pressure level (SPL) corresponding to loudness of 20, 40, and 60 phon. Three EACs were determined from mean annoyance ratings. The SPL yielding to equal annoyance increased with decreasing frequency. Up to 31.5 Hz, the EACs were more close to each other than on higher frequencies, suggesting that a small increase in SPL can significantly increase perceived annoyance. The results are preliminary and final contours will be published later involving a larger number of participants, hearing thresholds, and equal loudness contours.
Excessive work or addiction to work: workaholism in a Colombian company. Pilot study trough application of DUWAS test

This paper examines the workaholism phenomenon in different work situations in Colombian company. Workaholism was defined as the individual’s steady and considerable allocation of time to work, which is not derived from external necessities (1). The research studies about workaholics and workaholism have been increasing a lot in the last years (2). Workaholism is an addiction that actually is affecting a lot of people around the world and has serious consequences in personal life, in the community and also in economy. Some of these researches are directed to explore ways to diagnose when a person is workaholic and when this situation may affect the performanceof the individual in work, daily life activities and especially in psychosocial area. Objective: this pilot study contributes to identify if Colombian workers present the main characteristicsof workaholism and if the job they perform is related to the presence of the characteristics of this addiction. Materials and method: for this pilot study used the Dutch Work Addiction Scale(DUWAS), this test suggests when a person has work addiction, trough the evaluation of two main components working excessively and working compulsively. Results: the study find differences for the two groups: the 67% of the AE group are over the average while only the 33% of the members of the O group are over it. Conclusions: these percentages show that the combinations of the components of workaholism are more evident in the population belonging to the administrative/executive jobs group, giving evidence that workaholism is presented in greater proportion in the population performance management positions.