Miracle-dz/UniFAR-FTUs huggingface dataset:
Compact Quad-Port MIMO Antenna with Ultra-Wideband and High Isolation

In this paper, we propose a compact and highly isolated four-port ultra-wideband MIMO antenna. The antenna elements achieve broadband characteristics by etching a metamaterial structure on the radiating patch and stepping the coplanar waveguide feed. The test results show that the unit antenna can operate from 1.8 GHz to 16.38 GHz with an absolute bandwidth of 14.58 GHz and a relative bandwidth of 160.4% with good radiation properties and gain. After that, a compact four-cell ultra-wideband MIMO antenna is designed by using polarization diversity technology with an overall size of 51.2 mm × 51.2 mm × 1.524 mm. The MIMO antenna can operate from 1 GHz to 17 GHz with an absolute bandwidth of 16 GHz and a relative bandwidth of 177.78%. To reduce the coupling between cells, four angled slits are etched on the common ground to improve the isolation of the MIMO antennas to 27.8 dB. The performance parameters of the proposed MIMO antennas are further validated through simulation analysis and measurements. Moreover, the diversity properties of MIMO antennas are analyzed in detail, demonstrating the applicability of the proposed antennas in UWB communication systems, which can also be used for satellite mobile communications and satellite fixed communication services.
PARS Playwork: Considering Who We Are Becoming and Why

The PARS model of playwork practice was developed by Dr Shelly Newstead from research into the origins of playwork from the adventure playgrounds set up in the UK just after the Second World War. This article considers why and how this theoretical model of playwork as a form of professional practice is now being applied and developed by practitioners in Brazil, contributing to the creation of an international ‘community of practice’ (Wenger et al, 2002). It describes how PARS’ underpinning philosophy and model of practice provide a strong foundation that values playwork and supports the development of a shared language and identity for PARS playwork practitioners across Brazil and around the world.
Novel Insight into the Formation of Odour—Active Compounds in Sea Buckthorn Wine and Distilled Liquor Based on GC–MS and E–Nose Analysis

Sea buckthorn wine (SW) and distilled liquor (DL) are fruit wines with beneficial health effects. However, their unpleasant flavour limits their development and widespread acceptance. Therefore, it is necessary to analyse their flavour composition and changes. In this study, differential metabolites of sea buckthorn DL during processing were analysed, and the relationships between E–nose sensor values and key volatile organic compounds (VOCs) were established. The results show that 133 VOCs were identified, with 22 aroma–contributing components. Fermentation significantly increased the content of VOCs, especially esters. A total of seven and 51 VOCs were significantly upregulated after fermentation and distillation, respectively. Meanwhile, seven sensors were positively correlated with the increased level of alcohols and esters, and reflected the increasing trends of 10 key VOCs.
Dietary effects of sophorolipids on nutrient bioavailability and intestinal microenvironments in broiler chickens

Abstract Using antibiotics as growth promoter has been banned in poultry feed industry, thus various researchers try to seek an alternative to replace the growth-promoting antibiotics. In this study, we aimed to evaluate the growth performance via intestinal nutrient utilization and cecal microbial composition of broiler after dietary supplementation with most commonly using antibiotics, zinc bacitracin, and sophorolipid. A total of 180 1-day-old chicks were randomly assigned, and dietary treatment was as follow: CON, basal diet; ZB, 100 ppm of zinc bacitracin supplemented diet; and SPL, 250 ppm of sophorolipid supplemented diet. Their growth performance was evaluated and the samples of blood, small intestine, and ileal and cecal digesta were collected for biochemical, histological, and genomic analyses. The body weight and average daily gain of 7-day-old chicks were higher in ZB and those in overall experimental period were improved by ZB and SPL supplementation (p < 0.05). Their intestinal characteristics were not affected by dietary treatments in duodenum and ileum. Nonetheless, villus height was increased by SPL supplementation in jejunum (p < 0.05). Moreover, dietary SPL supplementation could down-regulate the expression level of pro-inflammatory cytokine, IL-1β (p < 0.05). mRNA levels of lipid and protein transporters did not differ among the treatments, however, relative expression levels of carbohydrate transporters, GLUT2 and SGLT1 were increased in broiler chicken’s jejumum fed zinc bacitracin and sophorolipid supplemented diets (p < 0.05). Dietary zinc bacitracin supplementation could increase the population of Firmicutes in phylum level, and the portion of Turiciacter in genus level. On the other hands, the portion of Faecalibacterium was increased by dietary SPL supplementation compared to the other treatments. Our findings suggest that SPL supplementation improves growth performance through enhanced carbohydrate utilization capacity via improvement of gut morphological status and modulation of the cecal microbial population of broilers.
A novel auxiliary unit based high gain DC-DC converter for solar PV system with MPPT control

Solar photovoltaic (PV) system becomes popular to generate the electricity in Asian region and helps to reduce the burden to utility. The power converter plays crucial role to interconnect with DC- grid. Traditional type power DC-DC converter can able to extract the maximum power from solar PV. However, most of the applications, it often fails to meet the voltage level of the DC bus and additional converter is required to boosting p the DC voltage. In order to overcome this drawback, this paper proposes a novel DC-DC converter to extract the maximum power from solar PV and helps to enhance the voltage level to meet the DC-bus. The PV and IV characteristics of practical solar PV cell and mathematical modelling have been done and implemented the same to proposed high gain converter. The maximum power point tracking (MPPT) algorithm and operation details are addressed and the detailed operation waveform of proposed high voltage gain DC-DC converter with mathematical evident is reported in this paper. The simulation study was carried out in the PSCAD/EMDTC software. From the measured results, it is investigated in further to validate the MPPT operation, gain values achievement and performance analysis of proposed converter. The corresponding explanations and results are presented in this article.
Faster Communication Using Probabilistic Swapped-Bell-States Analysis

In this article, a procedure called Probabilistic Swapped-Bell-States Analysis (PSBA) is proposed. Using this procedure two communication partners can transmit (binary-encoded) information over large spatial distances. This procedure is unusual insofar as no classical communication channels are used either during or after information encoding. To make this possible, entanglement swapping is used as a transport channel. The encoding of bits is realized by the execution (or non-execution, as the case may be) of entanglement swapping on multiple photon pairs, while decoding is realized by a statistical detection of swapped entanglements. If the PSBA procedure sustains itself against a rebuttal by the scientific community, it would constitute a technical approach for transmitting information faster than light. The PSBA procedure seems to be in harmony with the no-communication theorem, since PSBA does not manipulate (and teleport) specific states from one (entangled) particle to another in order to communicate, but instead uses statistics on entanglement swappings for information encoding.
X-ray bright points and the solar cycle dependence of emerging magnetic flux

Soft X-ray imaging of the solar corona during the period 1970 to 1978 resulted in significant modifications to the view of the solar cycle with respect to both the properties of the large scale (coronal holes) and small scale (X-ray Bright Points) solar magnetic field. In the latter case, the particular contribution is to the emerging magnetic flux. Sounding rocket observations combined with the Skylab data indicate that the XBP are anticorrelated with sunspot number and are the dominant contributors to the solar cycle. A continuous data set covering a complete cycle would enable the validity of this result which has serious implications for the nature of the solar dynamo, to be confirmed.
Densite d'etat surfacique pour une classe d'operateurs de Schrodinger du type a N-corps

We are interested in quantum systems composed of a finite number of particles and described by Hamiltonians which are random Schrodinger operators $H^{\omega}:=-\Delta + V^{\omega} $ on $L^2(X)$, where $X$ is a finite dimensional Euclidean space and $\Delta$ is the Laplace-Beltrami operator on $X$. We consider $X$ as the configuration space of the system and we assume that $\{X_n\}_{1\leqslant n \leqslant N_0}$ is a family of linear subspaces of $X$. The orthogonal complement of $X_n$ in $X$ is denoted $X^{n}$ and is considered as the configuration space of a subsystem. We assume that $V^{\omega}$ is a sum of potentials $v_n^{\omega}: X \longrightarrow \R,\quad 1\leqslant n \leqslant N_0,$ which are ergodic with respect the translation group of $X_n$ and which are rapidly decaying in any direction of $X^{n}. $ The aim of this paper is to show the existence of a thermodynamical limit. This limit defines an object which is a type of a the integrated density of states in the case of two body systems.
Photosynthesis in Carnivorous Plants: From Genes to Gas Exchange of Green Hunters

Abstract Although carnivorous plants can obtain organic carbon from their animal prey, they rely on photosynthetic assimilation of carbon dioxide. All investigated carnivorous plant species assimilate carbon dioxide using the C3 pathway, with the rate of photosynthesis (AN) being lower in comparison to noncarnivorous species. The reasons for low AN in carnivorous plants are (i) low nitrogen and phosphorus content in the soil and leaves and (ii) the cost of carnivory in their modified leaves (called traps). The cost of carnivory includes several anatomical, ultrastructural, and biochemical adaptations of traps, which favor nutrient uptake from prey over photosynthetic assimilation. However, after digestion, nutrient uptake from the prey can increase AN, growth, and reproduction. In carnivorous plants with active trapping mechanisms, spatiotemporal changes in AN and respiration rate (RD) occur during prey capture and digestion, owing to the interplay of electrical and hormonal signaling. Approximately 7.5% of carnivorous plants are aquatic plants, with demands for survival being different from those of terrestrial plants. The alternative mode of nutrition in carnivorous plants is reflected in their plastid genomes, which resemble the reduced plastomes of parasitic and mycoheterotrophic plants.
The early Universe and the cosmic microwave background

It is easy to do an experiment in a laboratory on Earth and to check the results and calculations for correctness. If you doubt the results are correct, the experiment can be repeated. Our study of the early universe is different. We have to extrapolate the known laws of physics to find out what the early universe must have been like. We can use observations to find out if the results are correct. See series of lectures by Sean Caroll: http://preposterousuniverse.com/writings/cosmologyprimer/index.html
On the NP-completeness of the Slither Link Puzzle

For many of the widely played games and puzzles, their computational complexities have been analyzed. In this paper, we consider a sort of puzzle “Slither Link” and prove that the problem which determines whether or not a given instance of puzzle has any solutions is NP-complete, by using a polynomial time reduction from the Hamilton Path Problem with respect to restricted graphs. In addition we consider Another Solution Problem for the puzzle, the problem which determines, for a given instance and its solution, whether there is another solution for the instance. We provide a strategy to prove its NP-completeness.
Cell Component and Function of Tumor Microenvironment in Thyroid Cancer

Thyroid cancer is the most common cancer in the endocrine system. Most thyroid cancers have good prognosis, but some of them are resistant to treatment or show aggressive behavior. Like other tumors, thyroid cancers harbor tumor microenvironment (TME) composed of cancer associated fibroblasts (CAF) and immune cells. Autoimmune lymphocytic thyroiditis can occur in the thyroid, and it may be associated with cancer development. TME is involved in tumor progression through various mechanisms: (1) CAF is involved in tumor progression through cell proliferation and extracellular matrix (ECM) remodeling; and (2) immune cells are involved in tumor progression through cell proliferation, angiogenesis, epithelial mesenchymal transformation (EMT), and immune suppression. These events are activated by various cytokines, chemokines, and metabolites secreted from cells that comprise TME. This review is focused on how CAF and immune cells, two important cell components of thyroid cancer TME, are involved in tumor progression, and will explore their potential as therapeutic targets.
Robot mobilny o zmiennym sposobie lokomocji - konstrukcja mechaniczna i elektroniczna

R obot mobilny Ryś to platforma mobilna o dwoch wspolosiowych kolach. Sterowanie robotem odbywa sie na zasadzie napedu roznicowego, przez sterowanie predkościami obrotowymi kol. Robot moze poruszac sie w dwoch trybach: stabilnym dynamicznie, utrzymując rownowage w pozycji pionowej, przy zachowanym kontakcie dwoch kol z podlozem, oraz w trybie stabilnym statycznie, w ktorym wystepuje dodatkowy, trzeci punkt podparcia – miekki zderzak. Roboty dwukolowe o napedzie roznicowym charakteryzują sie stosunkowo prostym opisem kinematyki [2–4, 9]. Ich glowną wadą, widoczną zwlaszcza w przypadku robotow stabilnych statycznie o napedzie czolgowym [7, 10], jest trudny do oszacowania poślizg kol, ktory sprawia, ze teoretyczny model staje sie chwilowo nieadekwatny [5]. Robot mobilny o zmiennym trybie lokomocji, mogący poruszac sie zarowno w trybie stabilnym statycznie, jak i stabilnym dynamicznie, lączy zalety obu tych trybow. Konstrukcje [8] podobne do robota Ryś pozwalają na podnoszenie duzych ciezarow, przy jednoczesnym zachowaniu niewielkiego pola podstawy podczas utrzymywania dynamicznie stabilnej pozycji oraz pozwalają na precyzyjną manipulacje w statycznie stabilnej pozycji. Z kolei w badaniach przeprowadzonych na robocie Ryś, ktore zostaną przedstawione w kolejnych cześciach artykulu, przetestowano wlaściwości wytworzonej platformy pod wzgledem lokomocji. W niniejszym artykule opisano jej konstrukcje mechaniczną (sekcja 1), a takze sterowniki elektroniczne (sekcja 2).
Effects of Maternal Protein Supplementation at Mid-Gestation of Cows on Intake, Digestibility, and Feeding Behavior of the Offspring

Simple Summary It is well known that intrauterine growth-restricted offspring present physiologic and metabolic modifications later in life. Therefore, understanding the impact of the maternal nutritional plane on feed intake patterns may lead to new feeding strategies to improve the feed efficiency and performance of beef cattle. In this study, we have evaluated the effect of maternal protein supplementation (PS) during mid-gestation and its interaction with the offspring’s sex on the voluntary feed intake and nutrient use of the progeny. Our results show that PS during mid-gestation increases performance and improves the voluntary feed intake of the offspring. Prenatal PS induced favorable changes in the feeding behavior, in which CON offspring spent more time per day eating supplements and ruminating but spent fewer periods in idleness. Maternal protein restriction demonstrated positive effects on the ability to digest the nutrients of male calves. In summary, our data show that PS alters the gain potential, indirectly demonstrating an increase in their nutritional requirements. In contrast, protein restriction causes a compensatory mechanism on the offspring’s nutrient useability in a sex-dependent manner, increasing the total tract digestibility of nutrients in response to a growth-restriction exposure during intrauterine development. Abstract This study aimed to assess the effects of maternal protein supplementation and offspring sex (OS) on the intake parameters of the offspring. Forty-three Tabapuã cows were randomly allocated in the following treatments: protein supplementation (PS) during days 100–200 of gestation (RES, 5.5% total crude protein (CP), n = 2, or CON, 10% total CP, n = 19) and OS (females, n = 20; males, n = 23). The offspring were evaluated during the cow–calf (0–210 days), backgrounding (255–320 days), growing 1 (321–381 days), and growing 2 (382–445 days) phases. The CON offspring tended to present higher dry matter intake (DMI) at weaning (p = 0.06). The CON males presented lower digestibility of major diet components in the growing 2 phase (p ≤ 0.02). The CON offspring spent 52% more time per day eating supplements at 100 days and 17% less time in idleness at 210 days. The CON males spent 15 min more per day ruminating than RES males in the feedlot phase (p = 0.01). We concluded that protein supplementation over gestation alters the offspring feed intake pattern as a whole, while protein restriction promotes compensatory responses on nutrient digestibility in males.
Učinci kombinacije standardnog programa individualne neurofizioterapije i grupnog vježbanja na oporavak hoda i ravnoteže kod osoba nakon moždanoga udara

Terapijsko vježbanje učinkovito je za oporavak ravnoteže i hoda nakon moždanoga udara. Ne postoji jedinstvena metoda koja bi se mogla primijeniti, te je potrebno nadalje istraživati metode koje će biti najučinkovitije u odgovarajućim kliničkim uvjetima. Cilj istraživanja je utvrditi učinke integrirane kombinacije standardnog programa individualne neurofizioterapije i dodatnih grupnih vježbi u trajanju od 3 tjedna na oporavak ravnoteže i hoda. Provedeno je randomizirano istraživanje na prigodnom uzorku ispitanika, definiranom u kontrolnoj (n 51) i ispitivanoj (n 51) skupini. Kontrolna skupina provodila je standardni program, a ispitivana i dodatno grupno vježbanje 3 puta tjedno. Rezultati razlika isptivanih varijabli između 1. i 2. točke mjerenja, između ispitivane i kontrolne skupine, testirani su Mann-Whitney U testom, a kao razina značajnosti rezultata prihvaćen je rizik od p < 0,05. Rezultati istraživanja pokazali su pozitivne učinke u obje skupine, ali su rezultati ispitivanih varijabli bili statistički značajno bolji u ispitivanoj skupini: ravnoteža (Z = -2,943, p = 0,003), hod (Z = -3,879, p = 0,000). Integrirana kombinacija standardne neurofizioterapije i dodatnog vježbanja 3 puta tjedno, dovelo je do statistički značajnog poboljšanja oporavka ravnoteže i hoda u ispitivanoj skupini. U zaključku, kod bolesnika s moždanim udarom na bolničkoj rehabilitaciji, može se preporučiti klinička primjena standardne terapije u kombinaciji s grupnim vježbama.
Statistical study of EUV and X-ray transient brightenings

Using the visual inspection and base difference method and data from the X-ray Telescope (XRT) onboard Hinode and TRACE with improved spatial and temporal resolution, we selected 48 X-ray transient brightenings (XTBs) and 237 EUV transient brightenings (ETBs) to study the connection between these two types of transient brightenings (TBs). These ETBs and XTBs have smaller areas (8.42 Mm2 and 36.3 Mm2, respectively, on average) and shorter durations (9.0 min and 6.9 min, respectively, on average) than previous studies. These XTBs show three types of morphological structure: point-like, single-loop and multiple-loop. We find only 20% of the ETBs have corresponding XTBs while the other 80% have no X-ray signatures at all. This is presumably due to the small amount of released energy, which is not enough to heat the plasma to coronal temperatures which produce X-ray emission rather than being due to the limitation of spatial resolution and temperature sensitivity of the X-ray instrument. These small ETBs may significantly contribute to the coronal heating.
An application for nonlinear control by input-output linearization technique for pm synchronous motor drive for electric vehicles

This paper leads to present the modified approach of the speed control for permanent magnet synchronous motors applied to electric vehicles using a nonlinear control. The motor's nonlinear dynamics are transformed into a linearized system model using the input-output feedback linearization technique. There are two permanent magnet synchronous motors (PMSM) in the propulsion model. In order to improve the motor's output torque, the direct component of the current is adjusted to zero. The electronic differential, which is used in the calculations, enables each driving wheel to be controlled individually at each curve. The MATLAB/Simulink software is used to implement modeling and simulation in order to assess the effectiveness of the suggested solution. Simulation studies are used to confirm the efficacy of the proposed technique. The obtained results signify that this approach is more accurate.
State of care for EU mobile workers' rights in the Dutch meat sector in times of, and beyond, COVID-19

PurposeWith a focus on the position of EU mobile workers in the Dutch meat industry, this article discusses the multi-level State efforts to enhance protection of workers who experienced limited protection of existing State and private enforcement institutions. The COVID-19 pandemic, with virus outbreaks at Dutch meat plants, fuelled public and political will to structurally improve these workers' precarious work and living conditions. Yet, the process of policy change is slow. The authors show it is the gradual transformation in the institutional environment that the State needs to counter to become more protective for EU mobile workers.Design/methodology/approachUsing the gradual institutional change approach and the concept of State ignorance, the authors examine State responses drawing on interviews with expert stakeholders in the public and private domain, public administration records and newspaper articles.FindingsThrough knowledge creation, boosted social dialogue mechanisms, enhanced enforcement capacity and new housing legislation, the Dutch State focuses on countering gradual institutional change through which existing institutions lost their effectiveness as protectors of EU mobile workers. The organization of work is, nevertheless, not (yet) fundamentally addressed with tighter public legislation.Originality/valueThe findings contribute to a more nuanced understanding of the role of the State as multifaceted actor in institutional change processes towards increased protection for EU mobile workers.
OIEAnnotator: Uma ferramenta para construção e anotação de corpora para Extração de Informação Aberta

A disponibilidade de corpora anotados é uma importante tarefa de Open Information Extraction (Open IE). Porém, essa é uma tarefa difícil pois demanda trabalho manual de anotadores. Essa tarefa se torna ainda mais complicada no contexto da língua portuguesa, dada a sua complexidade e a falta de uma estrutura prévia para tarefas de anotação nesta língua. Ferramentas que possam agilizar esse processo tem um grande valor para a construção de conhecimento nesta área. Esse trabalho propôs uma ferramenta capaz de auxiliar no processo de construção de corpora anotados, através da anotação e identificação de novas triplas relacionais nas sentenças. Para validação, foi definido um grupo de especialistas, composto por três especialistas na tarefa, e um grupo de controle, composto por indivíduos sem conhecimento no processo para teste de usabilidade da ferramenta. A ferramenta foi utilizada para anotação de um corpus em português, mas não foi identificado nenhum impedimento para a utilização desta para outras linguas.