Miracle-dz/UniFAR-FTUs huggingface dataset:
PROBABILITY-GUARANTEED ROBUST FULL-ORDER AND REDUCED-ORDER H∞-FILTERING

Abstract This paper addresses a robust H∞ Linear Time-Invariant (LTI) filter synthesis problem for an affinely parameter-dependent LTI system, under the requirement that the filtering performance attained over the uncertainty polytope is guaranteed to a prescribed probability. The solution is based on a novel filtering-type Linear Matrix Inequality (LMI) formulation of the Bounded-Real Lemma (BRL) that guarantees an upper bound on the disturbance effect on the estimation error. The approach applies parameter-dependent Lyapunov functions and provides general full-order stationary filtering estimates; filters of reduced order are also obtained. The core of the probability aspect is a search for a truncated parameters- polytope which provides both the required probability and the best robust filtering performance level. The search for an appropriate truncated parameter-box - that has already been used for probabilistic performance analysis, state-feedback control synthesis, and structured disturbances modeling - leads to Bi-Linear Matrix Inequalities (BLMIs) which are solved by (convex) iterations. The probability requirement is expressed as a set of simple LMIs by recursively using a reduction lemma; these LMIs are concurrently solved with the above BLMIs. The features of the proposed probability-guaranteed robust filtering approach are demonstrated via an example.
Natural Active Ingredients and TRPV1 Modulation: Focus on Key Chemical Moieties Involved in Ligand–Target Interaction

Diseases such as cancer, neurological pathologies and chronic pain represent currently unmet needs. The existing pharmacotherapeutic options available for treating these conditions are limited by lack of efficiency and/or side effects. Transient receptor potential vanilloid 1 ion channel emerged as an attractive therapeutic target for developing new analgesic, anti-cancer and antiepileptic agents. Furthermore, various natural ingredients were shown to have affinity for this receptor. The aim of this narrative review was to summarize the diverse natural scaffolds of TRPV1 modulators based on their agonistic/antagonistic properties and to analyze the structure–activity relationships between the ligands and molecular targets based on the results of the existing molecular docking, mutagenesis and in vitro studies. We present here an exhaustive collection of TRPV1 modulators grouped by relevant chemical features: vanilloids, guaiacols, phenols, alkylbenzenes, monoterpenes, sesquiterpenoids, alkaloids, etc. The information herein is useful for understanding the key structural elements mediating the interaction with TRPV1 and how their structural variation impacts the interaction between the ligand and receptor. We hope this data will contribute to the design of novel effective and safe TRPV1 modulators, to help overcome the lack of effective therapeutic agents against pathologies with high morbidity and mortality.
Is Broiler Breeder Welfare Improved by Using Qualitative Rather Than Quantitative Food Restriction to Limit Growth Rate?

Possible welfare benefits of qualitative rather than quantitative food restriction were investigated with growing female broiler breeder chickens (Ross 1). In Experiment 1, body-weight gains from 2 to 6 weeks of age were compared among different diet dilution, appetite suppression and low protein treatments, with free access to food at all times, to identify qualitative treatments causing weight gains similar to that recommended in the Ross 1 Parent Stock Management Manual. Based on these results, four diet dilution (400g kg−1 unmolassed sugar-beet pulp, 300 and 600g kg−1 oat hulls, 500g kg−1 softwood sawdust) and one appetite suppression (50g kg−1 calcium propionate) treatments were compared with two quantitative restriction (the recommended daily ration and twice that amount) and one ad libitum control treatments, from 2 to 10 weeks of age, in Experiment 2. As well as growth, food intake, excreta production and digestibility, measurements were also made of behaviour and blood indices of stress. Several conclusions were drawn. Different methods of qualitative food restriction can be used to control growth rate within desired limits. Problems with these methods include reduced uniformity in weight gain, increased excreta production and/or increased cost. Although they appear to suppress abnormal oral behaviours, they do not alter the increased general activity which is correlated with suppression of growth rate, and which may more accurately reflect associated hunger. Suppression of abnormal oral behaviours may only rarely correspond with reduction in blood indices of stress, and so cannot be taken to indicate improved welfare. Some of these methods can add to physiological stress. Finally, there was insufficient evidence of improved welfare, based on both behavioural and physiological criteria, to justify advocating the suitability of any of these methods for commercial use.
Cost-Effective Network Reordering Using FPGA

The advancement of complex Internet of Things (IoT) devices in recent years has deepened their dependency on network connectivity, demanding low latency and high throughput. At the same time, expanding operating conditions for these devices have brought challenges that limit the design constraints and accessibility for future hardware or software upgrades. These limitations can result in data loss because of out-of-order packets if the design specification cannot keep up with network demands. In addition, existing network reordering solutions become less applicable due to the drastic changes in the type of network endpoints, as IoT devices typically have less memory and are likely to be power-constrained. One approach to address this problem is reordering packets using reconfigurable hardware to ease computation in other functions. Field Programmable Gate Array (FPGA) devices are ideal candidates for hardware implementations at the network endpoints due to their high performance and flexibility. Moreover, previous research on packet reordering using FPGAs has serious design flaws that can lead to unnecessary packet dropping due to blocking in memory. This research proposes a scalable hardware-focused method for packet reordering that can overcome the flaws from previous work while maintaining minimal resource usage and low time complexity. The design utilizes a pipelined approach to perform sorting in parallel and completes the operation within two clock cycles. FPGA resources are optimized using a two-layer memory management system that consumes minimal on-chip memory and registers. Furthermore, the design is scalable to support multi-flow applications with shared memories in a single FPGA chip.
A Proposal of Bioinspired Soft Active Hand Prosthesis

Soft robotics have broken the rigid wall of interaction between humans and robots due to their own definition and manufacturing principles, allowing robotic systems to adapt to humans and enhance or restore their capabilities. In this research we propose a dexterous bioinspired soft active hand prosthesis based in the skeletal architecture of the human hand. The design includes the imitation of the musculoskeletal components and morphology of the human hand, allowing the prosthesis to emulate the biomechanical properties of the hand, which results in better grips and a natural design. CAD models for each of the bones were developed and 3D printing was used to manufacture the skeletal structure of the prosthesis, also soft materials were used for the musculoskeletal components. A myoelectric control system was developed using a recurrent neural network (RNN) to classify the hand gestures using electromyography signals; the RNN model achieved an accuracy of 87% during real time testing. Objects with different size, texture and shape were tested to validate the grasping performance of the prosthesis, showing good adaptability, soft grasping and mechanical compliance to object of the daily life.
The effect of duration of manual restraint during blood sampling on plasma cortisol levels in calves

Many studies on stress and pain rely, solely or mainly, on plasma Cortisol assessment. Confounding factors, such as handling, may cause a release of Cortisol making the interpretation of the results difficult. We looked at the influence of duration of restraint on the plasma cortisol levels of one-to-two month old calves. Forty-three calves were divided into four groups according to the interval between restraint and blood sampling: i) Group 0, immediate blood-sampling; ii) Group 0.5M, half a minute restraint; iii) Group IM, one minute restraint and iv) Group 2M, two minutes restraint. The only increase in plasma cortisol, compared with all the other groups, was seen with blood sampling after two minutes of restraint. This study provides evidence to suggest that cortisol released as a result of handling stress is not evident if blood sampling is carried out within one minute of restraining calves.
A Case Series of Intermittent Theta Burst Stimulation Treatment for Depressive Symptoms in Individuals with Autistic Spectrum Disorder: Real World TMS Study in the Tokyo Metropolitan Area

Autism spectrum disorder (ASD) is a neurodevelopmental disorder characterized by deficits in social communication and the presence of restricted interests and repetitive behaviors. While the symptoms of ASD are present from early childhood, there has been an increase in the number of adults with ASD in recent years who visit healthcare professionals to seek the treatment of depression due to maladjustment resulting from the core symptoms and are eventually diagnosed with ASD. Currently, no treatment is available for the core symptoms of ASD, and pharmacotherapy and psychotherapy are often provided mainly for secondary disorders such as depression and anxiety. However, the effectiveness of these therapies is often limited in individuals with ASD compared to those with major depression. In this context, neuromodulation therapies such as transcranial magnetic stimulation (TMS) have gained increasing attention as potential treatments. In this case series, we retrospectively analyzed 18 cases with ASD from the TMS registry data who had failed to improve depressive symptoms with pharmacotherapy and were treated with intermittent theta burst stimulation (iTBS) therapy to the left dorsolateral prefrontal cortex (DLPFC). We also explored the relationship between treatment efficacy and clinical epidemiological profile. Our results indicated that, despite the limitations of an open-label preliminary case series, TMS therapy in the form of iTBS may have some beneficial therapeutic effects on depressive symptoms in individuals with ASD. The present findings warrant further validation through randomized, sham-controlled trials with larger sample sizes.
Altered Cerebral Blood Flow in the Progression of Chronic Kidney Disease

Background: In chronic kidney disease (CKD), cognitive impairment is a definite complication. However, the mechanisms of how CKD leads to cognitive impairment are not clearly known. Methods: Cerebral blood flow (CBF) information was collected from 37 patients with CKD (18 in stage 3; 19 in stage 4) and 31 healthy controls (HCs). For CKD patients, we also obtained laboratory results as well as neuropsychological tests. We conducted brain perfusion imaging studies using arterial spin labeling and calculated the relationship between regional CBF changes and various clinical indicators and neuropsychological tests. We also generated receiver operator characteristic (ROC) curves to explore whether CBF value changes in certain brain regions can be used to identify CKD. Results: Compared with HCs, CBF decreased in the right insula and increased in the left hippocampus in the CKD4 group; through partial correlation analysis, we found that CBF in the right insula was negatively correlated with the number connection test A (NCT-A) (r = −0.544, p = 0.024); CBF in the left hippocampus was positively correlated with blood urea nitrogen (r = 0.649, p = 0.005) and negatively correlated with serum calcium level (r = −0.646, p = 0.005). By comparing the ROC curve area, it demonstrated that altered CBF values in the right insula (AUC = 0.861, p < 0.01) and left hippocampus (AUC = 0.862, p < 0.01) have a good ability to identify CKD. Conclusions: Our study found that CBF alterations in the left hippocampus and the right insula brain of adult patients with stage 4 CKD were correlated with disease severity or laboratory indicators. These findings provide further insight into the relationship between altered cerebral perfusion and cognitive impairment in patients with non-end-stage CKD as well as, additional information the underlying neuropathophysiological mechanisms.
Shock-wave shapes around spherical-and cylindrical-nosed bodies.

2. respectively. These data involved ~Iach numbers from 3 to 17, over a wide range of angles of attack. The degree of con'elation between the stagation-poin t locations, as indicated from flight and \vind-tunnel model pressure data, is sho\vn in Fig, I. The stagnation point is specified in nondimensional distance terms SjRN where S is the radial distanc~ (in.) from the centerline of the heat shield and R",is the radius (in,) of CUl"Vature of the shield. The nominal stagllation-point location, as determined from the pressure distribution, is presented ,,'ith an estimate of the uncertainty of the precise location caused by the data scatter. The symbols loc. '\te the stagnation point measured on several vehicles at the nominal angle of attack for the flight conditions assumed for solidification of the ablator. Typical uncertainties in the heat-shield measurements are :1::0.5 in. and :1::0.50 in angle of attack. In the figure it is sho\vn that the described technique is acceptable in providing a reasonable estimate of the hypel"Sonic trim angle of attack of a blunt lifting vehicle. The method appears usable without analytical modification to the experimental pressure distributions to compensate for scale-model size. The accuracyasso~iated with this method is, ho\vever, dependent upon the quality of the pressure disu'ibution data, the kno\vledge of the ablation material solidification characteristics, and the availability of a reasonably well-defined ablation pattern. « ~
A statistical survey of colour vision

It is well known that there are many people with slightly abnormal colour vision, who would not be differentiated from the normal by any of the usual tests for colour-blindness. The object of this paper was to make a statistical study of such people; such a study is of interest because it enables us to say whether normal colour vision passes gradually into colour-blindness, or whether the colour-blind form a well-defined class by themselves. This is important from the point of view of colour-vision theory. For, suppose we test the colour vision of 1000 persons, chosen entirely at random, and assign marks to it, ranging from 1 to 30, taking 1 for total colour-blindness and 30 for the most perfect colour vision it is possible to have. We could thus divide them into 30 classes. Suppose next that the number of persons in each class is plotted against the number of the class. Then we shall get a frequency curve. Such a curve might have various shapes; if it were to turn out of the shape shown in fig. 1 it would show we were dealing with two classes of persons, and it would be natural to identify the large maximum with the trichromats, and the small one with the dichromats of the Young-Helmholtz theory.
AN APPROACH FOR BUILDING A CHATBOT SYSTEM FOR THE ADMISSION PROCESS OF DA LAT UNIVERSITY

Chatbot là ứng dụng được xây dựng nhằm tương tác với con người một cách tự động bằng cách sử dụng các kỹ thuật ngôn ngữ tự nhiên. Chương trình này đóng vai trò như một trợ lý ảo, trò chuyện với con người và khiến họ nghĩ rằng họ đang nói chuyện với một người thật. Trong bài báo này, chúng tôi sẽ phát triển một hệ thống chatbot hỗ trợ quy trình tuyển sinh đại học, tự động trả lời ngay lập tức tất cả các câu hỏi từ người dùng bất cứ lúc nào, ngay cả ngoài giờ hành chính. Tính năng quan trọng của một ứng dụng chatbot là hiểu câu hỏi của người dùng và đưa ra câu trả lời thích hợp. Vì vậy, chúng tôi đề xuất phương pháp xây dựng ứng dụng chatbot phù hợp với nhu cầu của trường đại học. Chúng tôi áp dụng một số mô hình biểu diễn ngôn ngữ dựa trên BERT để dự đoán câu trả lời từ câu hỏi đầu vào. Thử nghiệm cho thấy salti/ bert-base-multilingual-cased-finetuned-team là mô hình phù hợp cho ứng dụng chatbot của chúng tôi vì điểm F1 và EM trên tập dữ liệu thử nghiệm cao đáng kể, lần lượt chiếm 88,6% và 79,6%. Đối với chức năng phân lớp ý định, chúng tôi đạt được 99,9% và 100% trên tập dữ liệu thử nghiệm và tập dữ liệu kiểm tra.
A NEW PIGMENTED WAX-RESIN FORMULATION FOR INFILLING AND REINTEGRATING LOSSES IN PAINTINGS: TESTING ITS WORKABILITY IN TWO CASE STUDIES

A new pigmented wax-resin formulation introduced and tested for its suitability as a material to infill and reintegrate losses in paintings. This formulation contains Cosmoloid H80 microcrystalline wax and Regalrez® 1126 hydrogenated hydrocarbon resin, in a ratio of 1.5:1 (wax:resin, parts by weight), and is mixed with dry pigments and/or inert fillers (such as chalk, kaolin, or aluminium hydroxide). After extensive research on the properties and the stability of various formulations, the most successful one was applied on two canvas paintings with very diverse characteristics: a 17th century oil painting, and a 21st century acrylic painting. In this paper, the different application methods used are described step-by-step. These consisted of using the new formulations not only solely as infilling materials (by adding inert fillers to the wax-resin mixture), but also as materials capable of infilling and reintegrating a loss in one single step (by adding pigments to the wax-resin mixture). The possibility of imprinting and carving texture, as well as of sculpting the infills to recreate brushstrokes, was also tested and verified and is described in detail here.
The thermal conductivity of NiO and CoO at the Neel temperature

The thermal conductivity of singly crystals of NiO has been measured in the temperature range 100-650K and that of CoO in the range 100-450K, both ranges including the Neel temperature. Sharp minima at the magnetic transition are qualitatively explained in terms of Stern's theory of the critical scattering of phonons by the spin system. Data are also reported on the specific heat and electrical resistivity of the crystals around the magnetic transition, the former showing critical behaviour which is very similar to that found in many other ordered systems. There is evidence from the latter of a divergence in the rate of change of resistivity with temperature, behaviour so far reported only in magnetic metals.
Digital Output Feedback Control over Signal-to-Noise Ratio Limited Communication Channels

Abstract In this paper we address the problem of finding a stabilizing feedback controller for a linear time invariant (LTI) plant model when measurement is performed over a communication channel model subject to channel input logarithmic quantization and a signal-to-noise ratio (SNR) constraint. The location of the communication channel is therefore on the measurement path, that is between the plant and the controller, nevertheless similar results can be obtained for the alternative location over the control path. In our first approach the communication channel model itself is selected to be an additive white Gaussian noise (AWGN) channel. We then describe the spectral power density of the channel density as a function of the power spectral density of the channel additive white Gaussian noise and the uniform distributed process model arising from a logarithmic quantization. The infimal channel SNR is then obtained through the definition for the channel input power, together with an interpretation of a bound on the logarithmic quantization relative error as a multiplicative modeling error. In our second approach we extend the proposed analysis to the class of additive colored Gaussian noise (ACGN) channels with memory. The infimal SNR is then obtained again through the definition for the channel input power. Finally, an extension to the case of sampled-data systems is proposed.
Evolution and breakdown of Kelvin-Helmholtz billows in stratified compressible flows. Part I: Comparison of two- and three-dimensional flows

Abstract The authors use a nonlinear, compressible, spectral collocation code to examine the evolution and secondary instability of Kelvin–Helmholtz billows in stratified shear flows at intermediate Reynolds numbers. Two-dimensional results exhibit structure consistent with previous numerical studies and suggest dissipation via diffusive transports within the billow cores. Results obtained permitting three-dimensional structures show, in contrast, that secondary instability results in a series of counter-rotating vortices that occupy the outer portions of the billow structures, are oriented in the plane of two-dimensional motion, largely along the two-dimensional velocity field, and contribute substantially to mixing and homogenization of the billow cores at later times. Examination of the flow structure leading to secondary instability also suggests an alternative explanation of the nature of this instability in stratified flows to that offered previously. Comparison of the two-dimensional and spanwise-a.
On the Struggle for Epokhē and the Crisis of the Savoirs: Stiegler contra Will Self / Will Self contra Stiegler

Abstract:Reflecting on the mental ecologies of digital life and the crisis of spirit in the contemporary era, this article principally addresses the question of the possibility of epokhē (ἐποχή), the crisis of formation or self-cultivation (Bildung) and the possibility of a “third world,” which can be opened up by the phenomenological practice of epokhē. This will be undertaken idiosyncratically through a comparison between the thoughts of the British novelist and professor of contemporary thought at Brunel University in London, Will Self, and the late French philosopher Bernard Stiegler (1952–2020). Both thinkers, albeit in different ways and with different emphases—one literary, one more philosophical—address the psychical and traumatogenic consequences of epokhē. We can understand this as a suspension of disbelief in the present as we live through an “epoch without epoch,” a time witnessing the seizure of the symbolic by industrial technologies of the spirit. This is the time of the simulacrum of the real and the circulation of symbolic exchange and death. Both thinkers are interested in reinterpreting the concept of epokhē to consider psychic individuation or the psycho-pathological effects of technology upon the embodied human sensorium. I proffer some original thoughts drawn from the paradigm of critical postmedia philosophy and ecosophy on how to take the best elements from these thinkers to mount a sustained critique of technical life in the traumatized present that is without epoch.
Cirrus Cloud Studies with Elliptically Polarized Ka-band Radar Signals: A Suggested Approach

Abstract It has been shown previously that the use or elliptically polarized radar signals can help to obtain polarization signatures from tenuous cirrus clouds. Estimates of particle dimension ratios and orientations can be made in situations where conventional circular and linear polarizations fail because of weak echoes in one of the received polarization channels. One way of achieving elliptical polarizations is to install a quarter wave plate before the radar transmitter. This paper introduces two new easily measurable elliptical polarization parameters. These parameters are 1) the depolarization ratio for elliptical polarizations that slightly differ from the circular polarization, and 2) the difference in quarter wave plate angular positions that provide equal returns in both received polarization channels. The use of the elliptical depolarization ratio increases echo in the “weak” channel without significant change of echo in the “main” channel. This ratio is used to estimate ice particle deformit.