Miracle-dz/UniFAR-FTUs huggingface dataset:
Offering Discretionary Healthcare Services with Medical Consumption

This study studies discretionary healthcare services with consumption of medical goods (e.g., tests, drugs). Specifically, we focus on a setting where the service provider obtains revenue from the medical consumption, and the perceived service value improves while the amount of medical consumption decreases in the service time (e.g., due to more thorough inquiry and examination). We find that the equilibrium service and demand rates both decrease if the service provider’s share of revenue from the medical consumption decreases, or if the medical goods become more expensive. Moreover, the consumption of goods can reverse some well‐known results in models without goods: the service provider may reduce the service time when the perceived service value depends more heavily on the service time. From a policy perspective, we find that service price caps—often put in place to control medical costs—can lead to shorter service times and increased medical consumption. This effect is more severe when the service provider retains less revenue from the medical goods or when they are less expensive. Furthermore, without service price caps, facing a smaller market size, the service provider generally offers a longer service time inducing less medical consumption; however, this can be reversed with service price caps. Thus, in discretionary healthcare services accompanied by medical goods, price regulations may lead to wasteful consumption; extra attention is needed for certain market scenarios.
An Accurate Clinical Implication Assessment for Diabetes Mellitus Prevalence Based on a Study from Nigeria

The increasing rate of diabetes is found across the planet. Therefore, the diagnosis of pre-diabetes and diabetes is important in populations with extreme diabetes risk. In this study, a machine learning technique was implemented over a data mining platform by employing Rule classifiers (PART and Decision table) to measure the accuracy and logistic regression on the classification results for forecasting the prevalence in diabetes mellitus patients suffering simultaneously from other chronic disease symptoms. The real-life data was collected in Nigeria between December 2017 and February 2019 by applying ten non-intrusive and easily available clinical variables. The results disclosed that the Rule classifiers achieved a mean accuracy of 98.75%. The error rate, precision, recall, F-measure, and Matthew’s correlation coefficient MCC were 0.02%, 0.98%, 0.98%, 0.98%, and 0.97%, respectively. The forecast decision, achieved by employing a set of 23 decision rules (DR), indicates that age, gender, glucose level, and body mass are fundamental reasons for diabetes, followed by work stress, diet, family diabetes history, physical exercise, and cardiovascular stroke history. The study validated that the proposed set of DR is practical for quick screening of diabetes mellitus patients at the initial stage without intrusive medical tests and was found to be effective in the initial diagnosis of diabetes.
Experimental demonstration of a passive temperature stabilized quantum memory for storage of polarization qubits in a cold atomic ensemble

Interferometric stability of polarization-entangled photons in quantum repeaters for long time intervals is an important capability for future scalable quantum networks linked over distances greater than hundreds of kilometers. A quantum memory node is a necessary component of the quantum repeater, where entanglement is prepared and swapped to extend entangled states from remote to distant nodes. Room temperature fluctuations can have significant effects on phase stability of the polarization states stored in the quantum memory. Although common-path stabilization in a quantum memory has been demonstrated, passive stabilization to room temperature variations has not been realized. Our approach to the quantum memory uses a single collective excitation encoded in two separate spatial modes in a cold ensemble of rubidium atoms. The two spatial modes are combined into a single path using the birefringence of two calcite crystals. However, normal lab temperature changes introduces a phase shift between the ordinary and extraordinary pathways on the order of 2π. We demonstrate passive temperature stabilization by alignment of the ordinary path in one crystal to the extraordinary path in the second crystal and vice versa. We show a phase stability on the order of ten hours by homodyne detection of classical light modes exiting the interferometer. We corroborate the phase stability of the quantum memory with a correlation measurement between polarization states of a signal photon generated at the formation of the collective atomic excitation and a retrieved idler photon during the destruction of the atomic excitation. We measure a Bell-CHSH parameter for both the unstable configuration and for the stable configuration. For an unstable calcite crystal configuration, we do not measure a violation of the Bell-CHSH inequality1 (S≤2) with S = 1.42 ± 0.087. For the stable calcite crystal configuration, we measure a violation of Bell-CHSH inequality (S>2) with S = 2.48±0.099.
Performance of lactating cows fed with cake of babassu: ingestive behavior, intake, digestibility, production and quality of milk

ABSTRACT This study aimed to evaluate the intake, digestibility of dry matter and NDF, ingestive behavior, production and composition of milk and the economic evaluation of dairy cows fed diets containing cake of babassu (CB) in confinement regime. We used nine crossbred Holstein Gir cows in three 3 x 3 Latin squares. The treatments consisted of three diets, a standard based on corn and soybean meal (CB0), another with 25% (CB25) and the last one with 50% (CB50) replacing corn. There was no effect of diets on the intake of DM (DMI) and other nutrients. The replacement of 50% of the maize by CB was reduced milk production at 1.10 kg/day, but did not affect the DMI and other nutrients, in the same way the digestibility of DM was not affected, already the digestibility of NDF was influenced, where diets with CB presented lower values. The rate of ingestion in minutes/kg of DM consumed was higher for cows fed with diets CB, which indicates a low acceptability of this food for dairy cattle. The cake of babassu can replace corn at up to 25% in diets for lactating cows, without depreciating the performance with daily production of 13 kg of milk.
THROUGH THE WALL RESPIRATION RATE DETECTION OF MULTIPLE HUMAN SUBJECTS USING HILBERT VIBRATIONAL DECOMPOSITION

In this paper, through-the-wall detection of multiple human subjects is demonstrated using Doppler radar, with the help of Hilbert Vibrational Decomposition (HVD). The proposed Doppler radar can detect multiple human subjects behind a wall by respiration rate estimation. With different breathing conditions resembling real-life scenario, respiration signals of human subjects are extracted. The algorithm works in many real-life situations and detects the respiration rate of human subjects. It is expected to find use in the earthquakes, building collapses and security applications.
Vertical distribution of epifauna on Sargassum horneri, with special reference to the occurrence of bivalve spat

: The annual macroalga Sargassum horneri often forms a dense canopy at the sea surface. To evaluate the effects of the vertical structure and presence of the sea-surface canopy of S. horneri on the distribution of its epifauna, we collected epifauna from four different vertical portions of S. horneri at Kitsunezaki, west coast of Oshika Peninsula, Miyagi, Japan. The vertical portions of the thalli were deﬁned as follows: sea surface (S), the portion that was always lying on the sea surface; intermediate (I), which was periodically lying on the sea surface with tidal changes; underwater (U), which was always submerged; and bottom (B), the portion around the holdfast. The mean total density of epifauna in the sea-surface portions (S and I) was signiﬁcantly higher than that in the underwater portions (U and B). Harpacticoid copepods and bivalve spat accounted for more than 90% of the epifauna in all portions. It seems that the canopy of S. horneri collects bivalve larvae and other epifauna from the water column by sweeping the sea surface with the changing of the tide. We proposed the ʻ Seasonal Coincidence Hypothesis ʼ to explain the dense occurrence of bivalve spat on S. horneri in this study.
Right Coronary Artery-Superior Vena Cava Fistula Manifesting as NSTEMI: Case Report, Review of Imaging, and Summary of Guidelines.

Coronary artery fistulas (CAFs) represent a spectrum of abnormal connections between a coronary artery and another coronary artery, vein, or major blood vessel, known as coronary-vascular fistulas, or between a coronary artery and a cardiac chamber, known as coronary-cameral fistulas. While CAFs generally remain asymptomatic into the fifth decade of adult life, they can present with a diverse symptomatic profile, typically with angina from abnormal myocardial perfusion, or in the setting of larger fistulas, as right- or left-heart failure from pulmonary or left ventricular circulatory overload. CAFs rarely manifest as myocardial infarction in the absence of thrombosis within the fistula. When clinically suspected based on a continuous murmur on physical exam or an accidental finding on radiology, computed tomography angiography (CTA) and coronary angiography are the preferred diagnostic imaging modalities. Fistula anatomic and patient specific characteristics guide clinical decisions on transcatheter or surgical management strategies. We present the case of a right coronary artery-superior vena cava fistula manifesting as a non-ST elevation myocardial infarction. We also present a review of the imaging techniques available for evaluation of CAFs, and a summary of the major national and international cardiology society guidelines on the diagnosis and management of CAFs.
Image speckle noise denoising by a multi-layer fusion enhancement method based on block matching and 3D filtering

ABSTRACT In order to improve speckle noise denoising of block matching and 3D filtering (BM3D) method, an image frequency-domain multi-layer fusion enhancement method (MLFE-BM3D) based on nonsubsampled contourlet transform (NSCT) has been proposed. The method designs an NSCT hard threshold denoising enhancement to preprocess the image, then uses fusion enhancement in NSCT domain to fuse the preliminary estimation results of images before and after the NSCT hard threshold denoising, finally, BM3D denoising is carried out with the fused image to obtain the final denoising result. Experiments on natural images and medical ultrasound images show that MLFE-BM3D method can achieve better visual effects than BM3D method, the peak signal to noise ratio (PSNR) of the denoised image is increased by 0.5 dB. The MLFE-BM3D method can improve the denoising effect of speckle noise in the texture region, and still maintain a good denoising effect in the smooth region of the image.
THOM SPECTRA OF GENERALIZED BRAID GROUPS

It is proved that Thom spectra of generalized braid groups are the wedges of suspensions over the Eilenberg-MacLane spectrum for Z/2. Precise structure of the Thom spectra of the generalized braid groups of the types C and D is obtained. For the generalized braid groups of type C the natural pairing analogous to the pairing of the classical braids is studied. This paring generates the multiplicative structure of the Thom spectrum such that the corresponding bordism theory has the coefficient ring isomorphic to the polynomial ring over Z/2 on one generator of dimension one: Z/2[s]. The methods of Algebraic Topology were firstly applied for braid groups by V. I. Arnold [1]. E. Brieskorn [6] generalized the notion of braid group in connection with Coxeter groups. It was proved later by Mark Mahowald [18, 19] and Fred Cohen [10] that the Thom spectrum for the infinite braid group is equivalent to the Eilenberg-MacLane spectrum K(Z/2). Ralph Cohen [11] established connections between Thom spectra for finite braid groups and the Brown-Gitler spectra. Here we are studying Thom spectra for generalized braid groups and proving that for the infinite generalized braid groups the Thom spectra are equivalent to the wedges of suspensions over the Eilenberg-MacLane spectrum K(Z/2). For Thom spectra of finite generalized braid groups relations with the Brown-Gitler spectra are considered. 1. Generalized Braid Groups Let V be a finite dimensional vector space (dim V = n) with euclidean structure. We denote by W a finite subgroup of GL(V ) generated by reflections. We use the terminology and the content of N. Bourbaki [4]. Let M be the set of hyperplanes such that W is generated by orthogonal reflections with respect to M ∈ M. We suppose that for any w ∈W and any hyperplane M ∈M the hyperplane w(M) belongs toM and that W acts totally discontinuously on V . The following facts are well known [4]. Proposition 1. (i) W permutes the chambers of M transitively. (ii) The closure Ā of a chamber A is a fundamental domain of W acting on V . (iii) If x ∈ V belongs to Ā its stabilizer is generated by the reflections with respect to the walls of A containing x. Also there exists a set I and a one to one correspondence of elements of I with the walls of a chamber A : i 7→ Mi(A), which is called a canonical indexation of the walls of 1991 Mathematics Subject Classification. Primary 55N22, 20F36, 20F55.
A holographic derivation of the linearized equations of gravity

Using the Ryu-Takyanagi conjecture it will be argued that spacetime emerges from the entanglement entropy in the AdS/CFT correspondence. We will use the Iyer-Wald formalism to derive the linearized equations of gravity in the AdS space. To do this we will consider an exact quantum generalization of the thermodynamic first law on the CFT side and translate this to a holographic restraint in the form of a bulk first law. The linearized equations hold for any diffeomorphic invariant theory of gravity and in particular we shall explicitly derive the linearized Einstein equations. Finally extensions to this derivation and similar ways of deriving the Einstein equations will be discussed.
Event-triggered composite nonlinear control for saturated systems with measurement feedback

The composite nonlinear feedback (CNF) control problem with event-triggered strategy for saturated systems with measurement feedback is considered in this paper. Both the full-order measurement and the reduced-order one are investigated to ensure the satisfactory performance of the closed-loop saturated systems under the proposed event-triggered mechanism. Generally speaking, the CNF control is divided into the linear control part and the nonlinear control part, which are designed separately. The purpose of the former is to shorten the rise time, while the latter aims at reducing the overshoot caused by the former. In this paper, a co-design method of linear and nonlinear control parts is proposed such that the control output tracks the reference input asymptotically with a good transient performance. Moreover, the parameter of CNF is applied to the construction of event-triggered mechanism which can efficiently reduce the communication burden. In order to avoid Zeno behavior, the minimum event-triggering time interval is explicitly formulated. Finally, an example of fighter aircraft is given for illustration.
Online review analysis : How to get useful information for innovating and improving products?

With the development of e-commerce,consumers have posted large number of onlinereviews on the internet. These user-generated dataare valuable for product designers, as informationconcerning user requirements and preference can beidentified.The objective of this study is to develop an approachto guide product design by analyzing automaticallyonline reviews. The proposed approach consists oftwo steps: data structuration and data analytics.In data structuration, the author firstly proposes anontological model to organize the words andexpressions concerning user requirements in reviewtext. Then, a rule-based natural language processingmethod is proposed to automatically structure reviewtext into the propose ontology.In data analytics, two methods are proposed based onthe structured review data to provide designers ideason innovation and to draw insights on the changes ofuser preference over time. In these two methods,traditional affordance-based design, conjointanalysis, the Kano model are studied andinnovatively applied in the context of big data.To evaluate the practicability of the proposedapproach, the online reviews of Kindle e-readers aredownloaded and analyzed, based on which theinnovation path and the strategies for productimprovement are identified and constructed.
Aging Does Not Affect Beta Modulation during Reaching Movements

During movement, modulation of beta power occurs over the sensorimotor areas, with a decrease just before its start (event-related desynchronization, ERD) and a rebound after its end (event-related synchronization, ERS). We have recently found that the depth of ERD-to-ERS modulation increases during practice in a reaching task and the following day decreases to baseline levels. Importantly, the magnitude of the beta modulation increase during practice is highly correlated with the retention of motor skill tested the following day. Together with other evidence, this suggests that the increase of practice-related modulation depth may be the expression of sensorimotor cortex's plasticity. Here, we determine whether the practice-related increase of beta modulation depth is equally present in a group of younger and a group of older subjects during the performance of a 30-minute block of reaching movements. We focused our analyses on two regions of interest (ROIs): the left sensorimotor and the frontal region. Performance indices were significantly different in the two groups, with the movements of older subjects being slower and less accurate. Importantly, both groups presented a similar increase of the practice-related beta modulation depth in both ROIs in the course of the task. Peak latency analysis revealed a progressive delay of the ERS peak that correlated with the total movement time. Altogether, these findings support the notion that the depth of beta modulation in a reaching movement task does not depend on age and confirm previous findings that only ERS peak latency but not ERS magnitude is related to performance indices.
Enhancing Downlink Transmission in MIMO HetNet With Wireless Backhaul

We propose a transmission scheme that exploits the spatial degrees of freedom from large antenna arrays to maximize the downlink sum-rate of user equipment (UE) in a heterogeneous network. Our scheme incorporates the design of 1) a new precoder for the millimeter wave (mmWave) wireless backhaul; and 2) an enhanced small cell range expansion method for data link transmission. Aside from the advantage of lower implementation and computational complexity, the wireless backhaul precoder can simultaneously support multiple small access points with multi-streams. Under the constraint of wireless backhaul capacity, a downlink cooperation precoding algorithm is proposed to suppress the interference caused by small cell range expansion. Simulation results show that the proposed precoder in backhaul link can use a small number of radio frequency (RF) chains to achieve the sum-rate performance that approaches the one under traditional block diagonalization precoder, which requires the number of the RF chains to be comparable with that of antenna elements. Moreover, we give a lower bound for the overall UE sum-rate of the downlink cooperation precoding algorithm.
Zinc-Binding B-Box Domains with RING Folds Serve Critical Roles in the Protein Ubiquitination Pathways in Plants and Animals

Protein ubiquitination is an essential cellular process that maintains protein homeostasis, regulates protein, and cell functions, and removes aggregated and misfolded protein. Disruption in function of any of the protein components of the ubiquitination pathway is associated with human diseases including cancers. An important member in the ubiquitination cascade is the very large E3 ligase family that directs substrate modification. The RING-type E3 ligases possess a cysteine/histidine-rich zinc-binding RING domain that confers ligase functionality. RING domains adopt a canonical ββα -fold. TRIM proteins represent a novel class of RING-type E3 ligase. TRIM proteins consist of an N-terminal RING domain followed by one or two B-box domains. The two types of B-box domains play essential roles in protein ubiquitination by contributing to substrate targeting, ligase activity enhancement, and redundancy of ligase activity. This review presents a general background of the B-box domains, a structural and functional comparison with RING domains, and a summary of recent work demonstrating their role in proteolysis. We discuss new findings that reveal B-box domains which are ubiquitous and are found in non-TRIM plant proteins without the adjacent RING domain, indicating that B-boxes are members of RING-class E3 ligases.
Sex ratio at mating does not modulate age fitness effects in Drosophila melanogaster

Abstract Understanding the effects of male and female age on reproductive success is vital to explain the evolution of life history traits and sex‐specific aging. A general prediction is that pre‐/postmeiotic aging processes will lead to a decline in the pre‐ and postcopulatory abilities of both males and females. However, in as much the sexes have different strategies to optimize their fitness, the decline of reproductive success late in life can be modulated by social context, such as sex ratio, in a sex‐specific manner. In this study, we used Drosophila melanogaster to investigate whether sex ratio at mating modulates age effects on male and female reproductive success. As expected, male and female age caused a decrease in reproductive success across male‐biased and female‐biased social contexts but, contrary to previous findings, social context did not modulate age‐related fitness decline in either of the two sexes. We discuss these results in the light of how sex ratio might modulate pre‐/postcopulatory abilities and the opportunity for inter‐ and intrasexual competition in D. melanogaster, and generally suggest that social context effects on these processes are likely to be species specific.
Development of a Combined Control System to Improve the Performance of a PMSG-Based Wind Energy Conversion System Under Normal and Grid Fault Conditions

Fast transient and smooth steady-state performance of wind energy conversion systems (WECSs) is essential for sustained power conversion and grid code fulfilment including low voltage ride through capability. In this paper, an analysis of permanent magnet synchronous generator (PMSG)-based WECSs under vector control and direct torque control provides the basis for combining salient features of the two control methods into a reliable and effective control system to provide enhanced machine performance. The system includes two hysteresis current controllers in connection with an inverter-switching table. The proposed control provides fast transient and smooth steady-state performance for machine side converter of PMSGs, which controls dc-link voltage under grid fault conditions. Extensive simulation results on a 2-MW PMSG-based WECS demonstrate the desired performance of the proposed control system under both grid-normal and -fault conditions.