Miracle-dz/UniFAR-FTUs huggingface dataset:
Fabrication by electron beam induced deposition and transmission electron microscopic characterization of sub-10-nm freestanding Pt nanowires

We present a method to reduce the size and improve the crystal quality of freestanding nanowires grown by electron beam induced deposition from a platinum metal organic precursor in a dual beam system. By freestanding horizontal growth and subsequent electron irradiation in a transmission electron microscope, sub-10-nm polycrystalline platinum nanowires have been obtained. A combined transmission electron microscopy–electron energy loss analysis has shown that the amorphous carbon, mixed to nanocrystalline platinum in the as-deposited material, is removed from the wires during irradiation. The same treatment progressively transforms nanocrystals dispersed in the amorphous matrix in a continuous polycrystalline platinum wire.
Investigation on echo characteristics of ground penetrating radar for elliptical target

A full study and analysis of the electromagnetic scattering echo characteristics of targets with different shapes is helpful to better interpret and image the target radar detection echo data. The shape of elliptical target is closer to that of many practical targets, so it is meaningful to study the electromagnetic scattering echo characteristics of elliptical target. The finite-difference time-domain model of radar detection of elliptical targets with different azimuth angles is established. Through numerical calculation, the influence of azimuth angle of ellipse on target radar echo characteristics is analyzed, which provides a theoretical basis for elliptical target echo detection in radar detection.
Modulation of the Spectra of Short Gravity Waves by Sea Surface Films: Slick Detection and Characterization with a Microwave Probe

Abstract Organic sea surface films are often indicators of surface and subsurface processes that influence their formation and their spatial and temporal distribution. The films modify the physics of the sea surface and influence remotely sensed optical and microwave imagery. Natural sea surface films have been detected, charted, and characterized by measurements of the short-gravity spectra of wind waves during three experimental periods, one in the Sicilian Channel, and two in the Gulf of Maine. Wind wave spectra with and without organic films were measured in situ with a microwave probe. These spectra were analyzed to characterize the elasticity moduli of the wave modulating films using a recently developed theory. Theory and experiment are in good agreement. It has been demonstrated that the microwave probe can detect the presence of sea surface films and their visco-elastic properties by the measurement of their wave-modulating effects. The data collected by this system can possibly be further interp.
A Circularly Polarized Broadband Metasurface Loading and High Gain Antenna based on Multi-layer Structure

In this paper, a circularly polarized (CP) broadband metasurface loading and high gain low-profile patch antenna based on multi-layer structure is presented. The proposed antenna can achieve a impedance bandwidth (IBW) of 27.3% from 13.49 GHz to 17.76 GHz, and its average realized gain in the operating band is greater than 10dBic, furthermore, it has an compact overall size of $1.39\ \lambda_{0}\times 0.65\ \lambda_{0}\times 0.15\ \lambda_{0}$ (where $\lambda 0$ is the wavelength in free space at the center frequency of 15.6 GHz).
Dynamic Study of Stacking Fault Tetrahedra Induced by Electron Irradiation in Copper Crystals

The behavior of stacking fault tetrahedra (SFT) induced by electron irradiation in copper crystals has been investigated with a high-voltage electron microscope, concentrating especially on a) the growth of individual SFT, and b) the formation of linear arrays of SFT in the <100> direction. The effects of accelerating voltage, specimen temperature and dose rate of electrons on the behavior of SFT have also been examined.
Impact of Cognitive Impairments on Health-Related Quality of Life in Schizophrenia

The impact of cognitive impairments on the health-related quality of life (HRQoL) in individuals with schizophrenia is unclear. The aim of this study was to examine the association between cognitive impairments and HRQoL in individuals with schizophrenia. A total of 609 individuals with schizophrenia were assessed on the Positive and Negative Syndrome Scale (PANSS) and a neurocognitive battery which comprised of the Wechsler Abbreviated Scale of Intelligence matrix reasoning, the Benton Judgment of Line Orientation Test, Continuous Performance Tests-Identical Pairs, and the Brief Assessment of Cognition in Schizophrenia. A cognitive factor g was derived from the neurocognitive battery. EuroQol five-dimensional (EQ-5D-5L) utility scores were derived from PANSS scores via a previously validated algorithm and used as a measure of HRQoL. Hierarchical multiple regression was conducted to examine the association between cognitive factor g and the EQ-5D-5L. Cognitive factor g (β = 0.189, t = 4.956, p < 0.001) was found to be significantly associated with EQ-5D-5L scores. Age (β = −0.258, t = −6.776, p < 0.001), sex (β = 0.081, t = 2.117, p = 0.035), and being employed (β = 0.091, t = 2.317, p = 0.021) were also significant predictors of EQ-5D-5L. Our results add to the extant literature on the burden cognitive impairments exact in individuals with schizophrenia. More research is needed to develop effective interventions for cognitive impairments in schizophrenia.
Design of Space-Borne Ultra-Wideband Lightweight Tightly Coupled Antenna Array

In this paper, a novel space-borne ultra-wideband tightly coupled antenna element is proposed. The antenna element is an improvement on the traditional tightly coupled Vivaldi antenna element. By optimizing the feed structure from microstrip line to slot line and reducing the height of radiation arm of Vivaldi antenna, the profile of antenna element is greatly reduced. By slotting the radiation arm of Vivaldi antenna and introducing electric dipole to participate in energy radiation, the working bandwidth of the antenna is greatly expanded. The impedance matching of the whole frequency band is realized by introducing the resonant frequency point by loading T-slot on the radiation arm. The size of the antenna unit is $25\text{mm}\times \ 25\text{mm}\times \ 64\text{mm}$. The VSWR of the antenna unit is less than 2.1 in the range of 0.8~6GHz. The simulated radiation efficiency was demonstrated to be 87%, across the band. The simple structure greatly reduces the weight of the antenna, which has to be loaded onto a satellite.
A 100MS/s Pipeline ADC Without Calibration In 0.18µm CMOS Technology

Based on SMIC 180nm CMOS process and 1.8/3.3V power supply voltage, a high-speed pipeline ADC is designed in this paper. After a comprehensive consideration of conversion rate and accuracy, the pipelined architecture is finally determined to be $\boldsymbol{3.5}\mathbf{b}\boldsymbol{\times 3+5}\mathbf{b. }$ The redundant calibration technology is adopted between each stage to reduce the influence of comparator offset on ADC accuracy. To reduce power consumption and area, SHA-less sampling is adopted. The traditional bootstrap switch is improved to dynamically change the substrate potential so as to reduce the influence of leakage in SHA-less sampling circuit. The post-simulation results shows that the high-speed pipeline ADC designed in this paper can reach 9.97-bit ENOB and 67.76 dB SFDR under the sampling frequency of 100MS/s and input signal frequency of Nyquist, the overall power consumption is about 390mW, and the overall area of the layout is 4.56mm2.
Identification and assessment of green infrastructure in the Community of Madrid

Abstract The recently approved Spanish Green Infrastructure (GI) Strategy obliges each autonomous community to identify and evaluate its own GI. This paper identifies and assesses the GI in the Community of Madrid at regional scale. This entailed, firstly, the identification of GI Principal Areas (GIPAS). This was followed by a spatial assessment of GI on the basis of three indicators: the Contribution to Ecosystem Services, the Combined Biodiversity Index and the Accessibility Index. After that, the correlations between GI assessment values and socioeconomic indicators were explored. The highest GI assessment values were located around the Sistema Central mountain range, and the lowest were in the Metropolitan Area and Henares Corridor. Finally, significant negative correlations were observed between the GI assessment values, population density and gross per capita income. The results of this study could provide useful support for the planning and decision-making required for the spatial definition of GI in the autonomous Community of Madrid.
Image Based Multi Objects' Trajectories Estimation through Reduced Order Observer

Simple and robust estimation algorithm for real-time multiple object detection and tracking without relying on classification through appearance is presented. Detection of the object in low contrast thermal Infrared (IR) video sequence is performed through adaptive thresholding and image segmentation. Probabilistic data association of detected objects linked with estimation technique is then modeled into a network having the constraint of non-overlapping trajectories. The proposed framework is based on object tracking through MAP linked with reduced order observer (ROO) for robust estimation of trajectories that uses the spatial location, appearance and velocity of objects as states. Future estimation efficiency increased by incorporating prediction error. Computational complexity is reduced by reusing the calculations, instead of applying a Single object tracking model multiple times to achieve the task of multiple object tracking. Identity inference and occlusion are handled intrinsically in the algorithm.
Effect of iron-fortified rice on the hemoglobin level of the individuals aged more than six months: A meta-analysis of controlled trials

Fortification of staple food items with iron is a potential strategy to address anemia for a larger population. We reviewed studies to assess the impact of iron-fortified rice (IFR) on hemoglobin levels of individuals more than six months of age. We included studies assessing the effectiveness of IFR (with or without other micronutrients) conducted in any part of the world available in PubMed, Embase, Web of Science, Cochrane Library, Google Scholar, clinicaltrials.gov, International database of prospectively registered systematic reviews in health and social care (PROSPERO), unicef.org, and who.int databases and published from January 1, 1990 to April 1, 2019 (PROSPERO registration number: RD42020139895). We extracted the changes in hemoglobin, serum ferritin, and serum transferrin levels among the participants. Finally, data from 15 trials and their 21 subsets were analyzed. Mean difference in hemoglobin was 0.53 g/dl (95% CI: 0.26, 0.80, P < 0.001, I2 = 84%) in the IFR group compared to the control group. In the subgroup analysis after removing studies with small sample size and high risk for bias, a mean difference of 0.44 g/dl (95% CI: 0.20, 0.69, P < 0.001, I2 = 82%) was observed. No significant effect on serum ferritin or transferrin levels was observed. From this review it can be concluded that fortification of rice with iron can be adopted as an intervention to improve hemoglobin levels, especially in countries where rice is the major part food of staple diet. Research is needed on an optimal iron compound for fortification and the acceptance of IFR.
Co-Creation in Health 4.0 as a New Solution for a New Era

Previous research on co-creation in healthcare indicates that the use of co-creation in the design process of health solutions influences their greater acceptance and adaptation, resulting in greater efficiency of health services and higher usability of implemented health solutions. Analysis of adaptation and acceptance of new technologies reveals the problem of misunderstanding and the need for more trust in modern tools implemented in the healthcare system. The remedy may be the use of co-creation in the process of developing modern medical products and services. This article’s main purpose is to explore the co-creation process in Health 4.0, which is understood as the development of healthcare through the application of methods and tools of the Fourth Industrial Revolution. The literature review provided insights for an analytical framework—the co-creation matrix. We analyzed the case of the Italian medical platform Paginemediche.it to reveal the actors’ engagement in co-creation. The results demonstrated different levels of engagement in improving the efficiency of implementing medical and technological solutions. Both theoretical and practical analysis proved that the co-creation matrix helps more precisely define the scale and scope of co-creation in Health 4.0.
Multifunctional carbon nanotube networks for fuel cells

A single walled carbon nanotube (SWCNT) network is functionalized in different ways to achieve a multifunctional electrode. This electrode material is used as light and thin gas diffusion electrodes in fuel cells. In contrast to any previous work, no other carbon material is part of the electrode. We demonstrate that the performance of such all-SWCNT gas diffusion electrodes is comparable to that of regular electrodes which are based on amorphous carbon. This allows the entire replacement of these regular carbon electrodes by such multifunctionalized SWCNT networks. This way, extremely thin and light gas diffusion electrodes are realized, potentially fulfilling the demands of light-weight power supplies.
Fast-ion conduction and the structure of beta -Mg3Bi2

The structure of beta -Mg3Bi2 has been determined by neutron powder diffraction. The results show this is a superionic phase, with a fixed body-centred cubic bismuth sub-lattice and mobile Mg2+ ions. From analysis of the radial distribution function obtained from the diffraction pattern, it is concluded that the magnesium ions occupy the tetrahedral and triangular symmetry sites of the bismuth lattice in a similar way to the silver ions in the anion lattices of alpha -AgI and alpha -Ag2Se. This material is an example of a new type of superionic conductor in which the metallic mobile ion is small and doubly charged.
Exercise Restores Hypothalamic Health in Obesity by Reshaping the Inflammatory Network

Obesity and overnutrition induce inflammation, leptin-, and insulin resistance in the hypothalamus. The mediobasal hypothalamus responds to exercise enabling critical adaptions at molecular and cellular level that positively impact local inflammation. This review discusses the positive effect of exercise on obesity-induced hypothalamic dysfunction, highlighting the mechanistic aspects related to the anti-inflammatory effects of exercise. In HFD-fed animals, both acute and chronic moderate-intensity exercise mitigate microgliosis and lower inflammation in the arcuate nucleus (ARC). Notably, this associates with restored leptin sensitivity and lower food intake. Exercise-induced cytokines IL-6 and IL-10 mediate part of these positive effect on the ARC in obese animals. The reduction of obesity-associated pro-inflammatory mediators (e.g., FFAs, TNFα, resistin, and AGEs), and the improvement in the gut–brain axis represent alternative paths through which regular exercise can mitigate hypothalamic inflammation. These findings suggest that the regular practice of exercise can restore a proper functionality in the hypothalamus in obesity. Further analysis investigating the crosstalk muscle–hypothalamus would help toward a deeper comprehension of the subject.
Extensions of set functions

We establish a necessary and suficient condition for a function defined on a subset of an algebra of sets to be extendable to a positive additive function on the algebra. It is also shown that this condition is necessary and sufficient for a regular function defined on a regular subset of the Borel algebra of subsets of a given compact Hausdorff space to be extendable to a measure.
Dexmedetomidine Pre-Treatment of Neonatal Rats Prevents Sevoflurane-Induced Deficits in Learning and Memory in the Adult Animals

Anesthetics have been shown to cause cytotoxicity, cell death, affect neuronal growth and connectivity in animal models; however, their effects on learning and memory remain to be fully defined. Here, we examined the effects of the inhalation anesthetic sevoflurane (SEV)—both in vivo by examining learning and memory in freely behaving animals, and in vitro using cultured neurons to assess its impact on viability, mitochondrial structure, and function. We demonstrate here that neonatal exposure to sub-clinically used concentrations of SEV results in significant, albeit subtle and previously unreported, learning and memory deficits in adult animals. These deficits involve neuronal cell death, as observed in cell culture, and are likely mediated through perturbed mitochondrial structure and function. Parenthetically, both behavioural deficits and cell death were prevented when the animals and cultured neurons were pre-treated with the anesthetic adjuvant Dexmedetomidine (DEX). Taken together, our data provide direct evidence for sevoflurane-induced cytotoxic effects at the neuronal level while perturbing learning and memory at the behavioural level. In addition, our data underscore the importance of adjuvant agents such as DEX that could potentially counter the harmful effects of commonly used anesthetic agents for better clinical outcomes.
Large magnetic moment enhancement and extraordinary Hall effect in Co/Pt superlattices

High quality~111! and~100! oriented Co/Pt superlattices have been prepared using the magnetron sputtering technique. The extraordinary Hall effect and magnetic properties in a series of these Co/Pt superlattices have been studied. We have established the existence of a large enhanced moment at the Co/Pt interfaces. Tensile strain in the magnetic layers is found to dominate the perpendicular magnetic anisotropy for the ~111! orientation. From a systematic variation of the Co layer thickness we have determined that the extraordinary Hall resistivity is dominated by interface scattering. Further, large deviations from the commonly used scaling relations linking the extraordinary Hall resistivity and the ordinary resistivity are observed. These are discussed within a model proposed by Zhang.
Compact Dual-Band Filtering Power Divider Based on Quad-Mode Dielectric Resonator

In this paper, a new quad-mode dual-band filtering power divider based on dielectric resonator (DR) is presented. The quad-mode DR in the shape of a cross consists of two rectangular DRs that are perpendicular to each other. Each of them is loaded with a banded silver layer in the middle section. By changing the length of the silver strip, the modes of TE110 and TE210 keep unchanged, while the resonant frequencies of the other modes can be adjusted not to appear between the two modes. Therefore, the required filtering response and isolation between the two bands can be effectively achieved. A designed prototype for verification has been simulated. The result shows low insertion loss and good isolation between the pass-bands. The phase difference in the pass-band operating at 1.78GHz is $180^{\circ}+3^{\circ}$ while it is $0^{\circ}\pm 1^{\circ}$ in the band centered at 2.01GHz. The method of obtaining different phase differences in the two bands by arranging the feeding position has good flexibility.
Carleson measures on spaces of homogeneous type

Let X be a space of homogeneous type in the sense of Coifman and Weiss [CW2] and let X+ = X x R+ . A positive function F on X+ is said to have horizontal bounded ratio (HBR) on X+ if there is a constant AF SO that F(x, t) < AFF(y, t) whenever p(x, y) < t. (By Harnack's inequality, a well-known example is any positive harmonic function in the upper half plane.) HBR is a rich class that is closed under a wide variety of operations and it provides useful majorants for many classes of functions that are encountered in harmonic analysis. We are able to prove theorems in spaces of homogeneous type for functions in HBR which are analogous to the classical Carleson measure theorems and to extend these results to the functions which they majorize. These results may be applied to obtain generalizations of the original Carleson measure theorem, and of results of Flett's which contain the Hardy-Littlewood theorems on intermediate spaces of analytic functions. H6rmander's generalization of Carleson's theorem is included and it is possible to extend those results to the atomic HP spaces of Coifman and Weiss.
Gene Regulatory Interactions at Lamina-Associated Domains

The nuclear lamina provides a repressive chromatin environment at the nuclear periphery. However, whereas most genes in lamina-associated domains (LADs) are inactive, over ten percent reside in local euchromatic contexts and are expressed. How these genes are regulated and whether they are able to interact with regulatory elements remain unclear. Here, we integrate publicly available enhancer-capture Hi-C data with our own chromatin state and transcriptomic datasets to show that inferred enhancers of active genes in LADs are able to form connections with other enhancers within LADs and outside LADs. Fluorescence in situ hybridization analyses show proximity changes between differentially expressed genes in LADs and distant enhancers upon the induction of adipogenic differentiation. We also provide evidence of involvement of lamin A/C, but not lamin B1, in repressing genes at the border of an in-LAD active region within a topological domain. Our data favor a model where the spatial topology of chromatin at the nuclear lamina is compatible with gene expression in this dynamic nuclear compartment.
Miniaturization of Negative Group Delay Bandstop Filter Using Gradient Slow-Wave Structures

This paper presents a miniaturized negative group delay bandstop filter (NGD-BSF) using the gradient slow-wave (SW) structures. The electrical lengths of the SW structures with different gradient lengths are calculated by the equivalent circuit. By replacing the $\lambda_{g}/4$ microstrip stub of the NGD-BSF with a gradient SW structure, a size-reduction factor of 27.71% is achieved. The simulated results show that the group delay and insertion loss are -6.5 ns and 18.8 dB at the operating frequency of 2 GHz, and the worst return loss is 13.4 dB within the NGD band from 1.962 GHz to 2.046 GHz.
Research on Miniaturized, UWB, and Low Sidelobe Vivaldi Antenna and Array

In this paper, a miniaturized wide-band Vivaldi Antenna unit is designed. Its array achieves low sidelobe and high gain. In order to realize miniaturization, the Vivaldi Antenna is designed with loading periodic corrugated edge structure. Gradual Slot Corrugated Edge and Inequality Rectangular Slot Corrugated Edge are used respectively. The two miniaturized structures are compared, and Gradual Slot Corrugated Edge structure with better performance is selected for array formation. The final antenna size is 45% ×46% less than the traditional antenna. Select the appropriate spacing composition 8×8 array and low sidelobe analysis. The size of the antenna array is only 96 mm × 84mm × 22mm.