Miracle-dz/UniFAR-FTUs huggingface dataset:
Teoría de ciclos reales de negocios; Construcción de un modelo de elasticidad de sustitución dinámico bajo la aplicación de las expectativas adaptativas forward-backward looking.

—This work attempt to expand contributions to dynamic macroeconomics theory by a broad literature review of recent Constant Elasticity of Substitution (CES) modelings in order to create a new modeling function based on workers preferences under the reasoning of adaptive expectations of the new classical macroeconomics. Under the microeconomic foundations implemented in the conventional real business cycle, workers decide based on inter-temporal consumption. This research provides unique contributions suggesting by mathematical development a dynamic model of workers supply preferences in function of past and future wage expectations, named by authors ”Dynamic Model of Real Business Cycles” (DRBC).
5G MIMO Antenna Based on Vector Synthetic Mechanism

A dual-polarized antenna based on a vector synthetic mechanism is demonstrated in this letter. It mainly embraces four radiators, a feed structure, and a reflector. All the radiators participate in the synthesis process, and there is almost no cross-polarization current on the radiators. Hence, the antenna element could cover 3.3–3.6 GHz with high port isolation and low cross polarization. A prototype of the antenna element is also experimentally studied. Then, the antenna element is extended to an array. By assigning different weighting factor and phase for each element's port, the antenna array can generate different patterns to meet the multimode requirements of the communication network. High isolation, low cross polarization, low sidelobes, and high front-to-back ratio can still be obtained. Having such merits, the multiple-input–multiple-output antenna would find its wide application in the future fifth-generation base station application.
Design of Compact Dual-Band SIW Slotted Array Antenna

A compact dual-band substrate integrated waveguide (SIW) slotted array antenna is presented in this letter. The proposed antenna has two layers. The bottom layer is for a 2 <inline-formula><tex-math notation="LaTeX">$\times$ </tex-math></inline-formula> 6 longitudinal slotted rigged SIW array resonating at the X-band. The top layer is for a 4 <inline-formula><tex-math notation="LaTeX">$\times$</tex-math></inline-formula> 8 longitudinal slotted SIW array working in the Ku-band. Two SIW power dividers are employed as the feeding networks for two slotted arrays. The effects between the two antennas are analyzed. The lower and higher band antennas on two different layers can be designed separately, which have good abilities to work independently in X-band and Ku-band, respectively. The −10 dB impedance band is 9.4–10 GHz in X-band and 14.5–15.2 GHz in Ku-band. Over the impendence band, the maximum gains are 14.5 dBi in the lower band and 17.5 dBi in the upper band.
Coordination, Communication, and Competition in eSports: A Comparative Analysis of Teams in Two Action Games

: eSports are increasing in popularity and in importance worldwide and, given that they essentially involve the cooperation of teams competing among themselves, they are an interesting study object for the CSCW field. In this study, we contribute to the CSCW literature regarding eSports by performing a comparative analysis of two different action games, focusing on how cooperation, communication, and competition take place in each one of them. To do so, we perform a semi-qualitative study involving interviews with professional and amateur players. Then, we analyzed the results of the fieldwork, which consisted of a 31-question questionnaire with 65 valid respondents. Moreover, we discuss and highlight the relationship between our results and other CSCW-related works focusing on our research questions. Among our findings, we can highlight the specialization of work in different eSport teams, the importance of non-verbal communication during matches, and the interplay between competition and collaboration in the same team.
Memory Recall for High Reward Value Items Correlates With Individual Differences in White Matter Pathways Associated With Reward Processing and Fronto-Temporal Communication

When given a long list of items to remember, people typically prioritize the memorization of the most valuable items. Prior neuroimaging studies have found that cues denoting the presence of high value items can lead to increased activation of the mesolimbic dopaminergic reward circuit, including the nucleus accumbens (NAcc) and ventral tegmental area (VTA), which in turn results in up-regulation of medial temporal lobe encoding processes and better memory for the high value items. Value cues may also trigger the use of elaborative semantic encoding strategies which depend on interactions between frontal and temporal lobe structures. We used diffusion tensor imaging (DTI) to examine whether individual differences in anatomical connectivity within these circuits are associated with value-induced modulation of memory. DTI data were collected from 19 adults who also participated in an functional magnetic resonanceimaging (fMRI) study involving a value-directed memory task. In this task, subjects encoded words with arbitrarily assigned point values and completed free recall tests after each list, showing improved recall performance for high value items. Motivated by our prior fMRI finding of increased recruitment of left-lateralized semantic network regions during the encoding of high value words (Cohen et al., 2014), we predicted that the robustness of the white matter pathways connecting the ventrolateral prefrontal cortex (VLPFC) with the temporal lobe might be a determinant of recall performance for high value items. We found that the mean fractional anisotropy (FA) of each subject’s left uncinate fasciculus (UF), a fronto-temporal fiber bundle thought to play a critical role in semantic processing, correlated with the mean number of high value, but not low value, words that subjects recalled. Given prior findings on reward-induced modulation of memory, we also used probabilistic tractography to examine the white matter pathway that links the NAcc to the VTA. We found that the number of fibers projecting from left NAcc to VTA was reliably correlated with subjects’ selectivity index, a behavioral measure reflecting the degree to which recall performance was impacted by item value. Together, these findings help to elucidate the neuroanatomical pathways that support verbal memory encoding and its modulation by value.
Loop-Closure Detection in Urban Scenes for Autonomous Robot Navigation

Relocalization is a vital process for autonomous robot navigation, typically running in the background of sequential localization and mapping to detect loops in the robot's trajectory. Such loop-closure detections enable corrections for drift accumulated during the estimation processes and even recovery from complete localization failures. In this work, we present a novel approach loosely integrated with a keyframe-based SLAM system to perform loop-closure detection in urban scenarios for autonomous robot navigation. Generating a mesh of the current robot's surroundings in real-time using monocular and inertial cues, the proposed method estimates the most salient plane in the current view, enabling the creation of the corresponding orthophoto for this plane. Evaluating image similarity on orthophotos forms a much better conditioned problem for relocalization, minimizing effects from viewpoint changes. Employing binary image descriptors and tests on their relative constellation in the image, the proposed approach exhibits robustness also to illumination and situational variations common in real scenes, overall resulting to significant improvement in loop-closure detection performance in urban scenes with respect to the state of the art.
Volumetric Wear Assessment and Characterization of Striated Pattern of Retrieved UHMWPE Tibial Inserts

S: Moslemi Rad E, Knowlton CB, Fullum S, Lundberg HJ, Laurent MP, Pourzal R, Wimmer MA: Is linear penetration an accurate surrogate measure for volumetric wear in TKR tibial liners? , Rush University Research Symposium, 2015. Moslemi Rad E, Knowlton CB, Fullum S, Lundberg HJ, Laurent MP, Pourzal R, Wimmer MA: Is linear penetration an accurate surrogate measure for volumetric wear in TKR tibial liners? , Orthopedic Research Society, 2015. Moslemi Rad E, Knowlton CB, Lundberg HJ, Laurent MP, Pourzal R, Wimmer MA. Wear Assessment of Total Knee replacement Polyethylene Liners retrieved after Revision Surgery, Oral presentation at the 2 nd International Conference on BioTribology, Toronto, Canada. May 2014. Moslemi Rad E, Knowlton CB, Lundberg HJ, Laurent MP, Pourzal R, Wimmer MA. Wear Assessment of Total Knee replacement Polyethylene Liners retrieved after Revision Surgery, Rush University Research Symposium, 2014.
Linear extensions of a partial order subject to algebraic constraints

We present a novel combinatorial problem that arises from mathematical biology. In order to understand the dynamics of models of gene regulatory networks over a parameter space, a problem of constructing linear extensions of a partial order with algebraic constraints arises naturally. We formulate the problem for a class of algebraic constraints related to the form of nonlinearities in the gene regulation model. We provide an algorithm that partially solves the problem. We formulate a conjecture on the special role of additive constraints in the class of all considered constraints. We present several examples where we show that the number of solutions is much smaller than the number of unconstrained linear extensions.
Mechanism of how augmin directly targets the γ-tubulin ring complex to microtubules

Microtubules (MTs) must be generated from precise locations to form the structural frameworks required for cell shape and function. MTs are nucleated by the &ggr;-tubulin ring complex (&ggr;-TuRC), but it remains unclear how &ggr;-TuRC gets to the right location. Augmin has been suggested to be a &ggr;-TuRC targeting factor and is required for MT nucleation from preexisting MTs. To determine augmin’s architecture and function, we purified Xenopus laevis augmin from insect cells. We demonstrate that augmin is sufficient to target &ggr;-TuRC to MTs by in vitro reconstitution. Augmin is composed of two functional parts. One module (tetramer-II) is necessary for MT binding, whereas the other (tetramer-III) interacts with &ggr;-TuRC. Negative-stain electron microscopy reveals that both tetramers fit into the Y-shape of augmin, and MT branching assays reveal that both are necessary for MT nucleation. The finding that augmin can directly bridge MTs with &ggr;-TuRC via these two tetramers adds to our mechanistic understanding of how MTs can be nucleated from preexisting MTs.
Generalized Multimode SIW Cavity-Based Sensor for Retrieval of Complex Permittivity of Materials

In this paper, the generalized substrate integrated waveguide (SIW) cavity technique is presented for the retrieval of broadband complex permittivity of medium loss dielectrics using a number of higher order modes of the proposed cavity. The proposed SIW cavity design improves the coupling by implementing a novel feeding topology to achieve a better quality factor for the higher order TE<inline-formula> <tex-math notation="LaTeX">$_{10n}$ </tex-math></inline-formula> modes as compared with the conventional SIW feeding arrangement. The conventional SIW cavity perturbation formula is modified to overcome various limitations of the SIW topology, such as the lower <inline-formula> <tex-math notation="LaTeX">$Q$ </tex-math></inline-formula>-factor, lower sample to cavity volume ratio, and larger frequency shifts observed for the higher order modes. The applicability of the proposed technique is first numerically validated using independent data obtained with the help of full-wave electromagnetic solver, and then, the accuracy is compared with various cavity-based techniques available in the literature. Finally, the proposed SIW cavity sensor is fabricated on Rogers’ RT5880 substrate, where a number of standard RF substrates are tested using the network analyzer. The proposed generalized scheme based on the improved SIW cavity provides reasonably accurate values of the complex permittivity of the medium-loss dielectric substrates at multiband of microwave frequency in the range of 10–20 GHz.
1 Judgment based approaches or “ message judgment approaches

In human natural interaction (human-human interaction), humans use speech beside the non-verbal cues like facial expressions movements and gesture movements to express themselves. However, in (humancomputer interactions), computer will use the non-verbal cues of human beings to determine the user experience and usability of any software or application on the computer. We introduce a new model called Measuring User Experience using Digitally Transformed/Converted Emotions (MUDE) which measures two metrics of user experience(satisfaction and errors) , and compares them with SUS questionnaire results by conducting an experiment for measuring the usability and user’s experience.
There goes Wally: Anonymously sharing your location gives you away

With current technology, a number of entities have access to user mobility traces at different levels of spatio-temporal granularity. At the same time, users frequently reveal their location through different means, including geo-tagged social media posts and mobile app usage. Such leaks are often bound to a pseudonym or a fake identity in an attempt to preserve one’s privacy. In this work, we investigate how large-scale mobility traces can de-anonymize anonymous location leaks. By mining the country-wide mobility traces of tens of millions of users, we aim to understand how many location leaks are required to uniquely match a trace, how spatio-temporal obfuscation decreases the matching quality, and how the location popularity and time of the leak influence de-anonymization. We also study the mobility characteristics of those individuals whose anonymous leaks are more prone to identification. Finally, by extending our matching methodology to full traces, we show how large-scale human mobility is highly unique. Our quantitative results have implications for the privacy of users’ traces, and may serve as a guideline for future policies regarding the management and publication of mobility data.
A SiGe HBT  $D$ -Band LNA With Butterworth Response and Noise Reduction Technique

This letter presents a wideband high-gain four-stage cascode <inline-formula> <tex-math notation="LaTeX">$D$ </tex-math></inline-formula>-band low noise amplifier (LNA) implemented in a 0.13-<inline-formula> <tex-math notation="LaTeX">$\mu \text{m}$ </tex-math></inline-formula> SiGe BiCMOS technology. A shunt inductor that is used at the intermediate node of the cascode topology to reduce the noise contribution of the common base transistor is analyzed and employed for the first time for the SiGe HBT technology. Furthermore, the staggered-tuning technique based on the Butterworth distribution is utilized to have a wideband flat-gain characteristic. The designed LNA has a measured 32.6-dB peak gain at 144.5 GHz with a 3-dB bandwidth of 52 GHz. The measured noise figure (NF) is lower than 6.1 dB across the whole <inline-formula> <tex-math notation="LaTeX">$D$ </tex-math></inline-formula>-band, and its minimum value is 4.8 dB. The total dc power consumption is 28 mW. To the authors’ best knowledge, these results demonstrate the lowest NF performance and the widest 3-dB bandwidth among the <inline-formula> <tex-math notation="LaTeX">$D$ </tex-math></inline-formula>-band LNAs implemented in the silicon-based technologies. The effective chip area excluding the pads is 0.6 mm<sup>2</sup>, and the total IC occupies an area of 1 mm<sup>2</sup>.
Scheduler Accelerator for TDMA Data Centers

Today's Data Centers networks depend on optical switching to overcome the scalability limitations of traditional architectures. All optical networks most often use slotted Time Division Multiple Access (TDMA) operation; their buffers are located at the optical network edges and their organization relies on effective scheduling of the TDMA frames to achieve efficient sharing of the network resources and a collision-free network operation. Scheduling decisions have to be taken in real time, a process that becomes computationally demanding as the network size increases. Accelerators provide a solution and the present paper proposes a scheduler accelerator to accommodate a data center network divided into points of delivery (pods) of racks and exploiting hybrid electro-optical top-of-rack (ToR) switches that access an all-optical inter-rack network. The scheduler accelerator is a parallel scalable architecture with application specific processing engines. Case studies of 2, 4, 8, 16 processors configuration are presented for the processing of all the transfer TDMA time slot requests for the cases of 512 and 1024 ToR network nodes. The architecture is realized on a Xilinx VC707 board to validate the results.
Distribution of Arsenic and Risk Assessment of Activities on Soccer Pitches Irrigated with Arsenic-Contaminated Water

The aim of this research was to estimate the risk of human exposure to arsenic due to sporting activities in a private soccer club in Mexico, where arsenic-contaminated water was regularly used for irrigation. For this purpose, the total concentration in the topsoil was considered for risk assessment. This was accomplished through three main objectives: (1) measuring arsenic concentrations in irrigation water and irrigated soils, (2) determining arsenic spatial distribution in shallow soils with Geographical Information Systems (GIS) using geostatistical analysis, and (3) collecting field and survey data to develop a risk assessment calculation for soccer activities in the soccer club. The results showed that the average arsenic concentrations in shallow soils (138.1 mg/kg) were 6.2 times higher than the Mexican threshold for domestic soils (22 mg/kg). Furthermore, dermal contact between exposed users and contaminated soils accounted for a maximum carcinogenic risk value of 1.8 × 10−5, which is one order of magnitude higher than the recommended risk value, while arsenic concentrations in the irrigation water were higher (6 mg/L) than the WHO’s permissible threshold in drinking water, explaining the contamination of soils after irrigation. To the best of our knowledge, this is the first risk study regarding dermal contact with arsenic following regular grass irrigation with contaminated water in soccer pitches.
Secure Delegation-Based Authentication for Telecare Medicine Information Systems

The telecare medicine information systems (TMISs) enable patients to gain health monitoring at home and obtain medical services over mobile networks. In recent years, many authentication schemes have been proposed to address the security and privacy issues in the TMISs. For example, Kim et al. and Huang et al. proposed efficient delegation-based authentication protocols by using elliptic curve cryptography. These protocols have a prerequisite that both the home location register and the visited location register must share secrets beforehand. In this paper, we show that Kim et al.’s and Hwang et al.’s schemes are vulnerable to known key attacks. Moreover, they fail to provide communication confidentiality. We then present a new secure delegation-based authentication protocol by using the identity-based cryptography. The proposed protocol removes the weaknesses of the above-mentioned protocols. Through the analysis of the Burrows-Abadi–Needham logic, along with a random oracle model, we demonstrate that the proposed scheme provides secure authentication. In addition, the proposed scheme can provide more security functionaries than the existing delegation-based authentication protocols. Better tradeoff among security and functionality features and communication and computation costs makes our scheme suitable and applicable in the TMISs.
Improved Design of the Vivaldi Dielectric Notch Radiator With Etched Slots and a Parasitic Patch

A new design to improve the bandwidth and gain of the dielectric notch radiator is proposed. Rectangular slots are etched on both arms of the antenna to change the current density distribution. More resonant frequencies are created to reduce the voltage standing-wave ratio (VSWR) value and widen the bandwidth. A parasitic rectangular patch is introduced in the endfire aperture to enhance the electric field coupling and to produce stronger radiation in the endfire direction. Both changes improve the low- and high-frequency band performance, respectively. Evolution of the feeding structures is described in detail. Uniform-impedance microstrip line and slotline on the ground are designed to simplify the impedance matching and reduce optimized parameters. The proposed antenna prototype is fabricated and tested with the size of 31.5 mm × 41 mm × 0.508 mm. The measured results show that the bandwidth is 6.75–16.15 GHz under VSWR ≤2, and the corresponding realized gain ranges from 3.52 to 9.44 dBi. The measured radiation patterns are in good agreement with the simulated ones, which validates the design concept.
Should We Stop Developing Heuristics and Only Rely on Mixed Integer Programming Solvers in Automated Test Assembly? A Rejoinder to van der Linden and Li (2016)

This rejoinder responds to the commentary by van der Linden and Li entiled “Comment on Three-Element Item Selection Procedures for Multiple Forms Assembly: An Item Matching Approach” on the article “Three-Element Item Selection Procedures for Multiple Forms Assembly: An Item Matching Approach” by Chen. Van der Linden and Li made a strong statement calling for the cessation of test assembly heuristics development, and instead encouraged embracing mixed integer programming (MIP). This article points out the nondeterministic polynomial (NP)–hard nature of MIP problems and how solutions found using heuristics could be useful in an MIP context. Although van der Linden and Li provided several practical examples of test assembly supporting their view, the examples ignore the cases in which a slight change of constraints or item pool data might mean it would not be possible to obtain solutions as quickly as before. The article illustrates the use of heuristic solutions to improve both the performance of MIP solvers and the quality of solutions. Additional responses to the commentary by van der Linden and Li are included.
Using evolutionary computation to learn about detecting breast cancer

Disagreement or inconsistencies in mammographic interpretation motivates utilizing computerized pattern recognition algorithms to aid the assessment of radiographic features. This paper provides a review of recent efforts to evolve neural networks and linear classifiers to assist in the detection of breast cancer. Attention has been given to 216 cases (mammogram series) that presented suspicious characteristics. The domain expert (Wasson) quantified up to 12 radiographic features for each case based on guidelines from previous literature. Patient age was also included. The truth of malignancy or a benign case was available by examining the records of open surgical biopsy (111 malignant, 105 benign). Results indicate that both neural and linear models can yield suitable pattern classifiers and that fundamental relationships between input features and classification can be recognized.
A Low-Power Frequency Multiplier for Multi-GHz Applications

A programmable frequency multiplier operating in GHz frequency range is proposed in this paper. The architecture is based on the combination of a multi-segment programmable and power efficient phase interpolator with an edge combiner. The system is designed in a 65 nm process with 1.0 V supply voltage offering a multiplication factor ranging from 1 to 8 with integer step. The layout area is 104 μm × 96 μm and the power consumption is 6.6 mW for 4.992 GHz output frequency. Post-layout simulation results including the multi-phase ring oscillator verify −91.6 dBc/Hz phase noise at 4.992 GHz for 1 MHz frequency offset.