Miracle-dz/UniFAR-FTUs huggingface dataset:
Magnetic Structures in FeCr2S4 and FeCr2O4

The magnetic structures in FeCr2S4 and FeCr2O4 have been investigated by the powder neutron diffraction technique. From room temperature diffraction patterns, it is established that both compounds are normal spinels with sulfur and oxygen parameters u=0.384 and 0.386, respectively. The FeCr2S4 specimen exhibits a Neel temperature of 180°K, with σ0=1.6 μB. The magnetic intensities of this compound at 4°K are in good agreement with those based on a simple Neel model with μFe=4.2 μB and μCr=2.9 μB. The magnetic properties of FeCr2O4 are, on the other hand, more complex. The moment σ0 is considerably lower than the value expected from the Neel model. Moreover, the crystal becomes tetragonal with c/a<1 around 135°K. The magnetic reflections at 4°K show satellite peaks characteristic of a cone spiral structure described in the theory of Menyuk, Dwight, Lyons, and Kaplan for tetragonal spinels. However, a quantitative comparison of observed and calculated intensities indicates that some modifications of the simp.
Design and synthesis of hydroxyapatite composites containing an mPEG-dendritic poly(L-lysine) star polycaprolactone

The design and synthesis of star polycaprolactone−hydroxyapatite films for use as a biodegradable matrix for bone tissue engineering will be presented. mPEG-dendritic-poly(l-lysine) terminated with glycolic acid residues serve as the star polymer cores for attachment of polycaprolactone by ring-opening polymerization of e-caprolactone. Initial studies involved testing physical blends of the tert-butoxycarbonyl (Boc) and glycolamide terminated dendrons, generations zero through six, with varying concentrations of hydroxyapatite (HA). The star polymer had not only drastically different solubility but also greatly improved film quality. Further improvements were made in film quality and homogeneity by utilizing the star polymers in the presence of a chemical synthesis of hydroxyapatite. The improved films were then tested for their mechanical strength properties. The star polymer from generation 6.5 and 20 wt % of hydroxyapatite exhibited good mechanical properties with an average Young's modulus of 1.77 MPa.
Semeru: A Memory-Disaggregated Managed Runtime

Resource-disaggregated architectures have risen in popularity for large datacenters. However, prior disaggregation systems are designed for native applications; in addition, all of them require applications to possess excellent locality to be efficiently executed. In contrast, programs written in managed languages are subject to periodic garbage collection (GC), which is a typical graph workload with poor locality. Although most datacenter applications are written in managed languages, current systems are far from delivering acceptable performance for these applications. This paper presents Semeru, a distributed JVM that can dramatically improve the performance of managed cloud applications in a memory-disaggregated environment. Its design possesses three major innovations: (1) a universal Java heap, which provides a unified abstraction of virtual memory across CPU and memory servers and allows any legacy program to run without modifications; (2) a distributed GC, which offloads object tracing to memory servers so that tracing is performed closer to data; and (3) a swap system in the OS kernel that works with the runtime to swap page data efficiently. An evaluation of Semeru on a set of widely-deployed systems shows very promising results.
Going Green by Putting a Price on Pollution: Firm-level Evidence from the EU

This paper shows that, when the price of emission allowances is sufficiently high, emission trading schemes improve the emission efficiency of highly polluting firms. The efficiency gain comes from a relative decrease in emissions rather than a relative increase in operating revenue. Part of the improvement is realized via the acquisition of green firms. The size of the improvement depends on the initial allocation of free emission allowances: highly polluting firms receiving more emission allowances for free, such as firms on the carbon leakage list, have a weaker incentive to become more efficient. For identification, we exploit the tightening in EU ETS regulation in 2017, which led to a steep price increase of emission allowances and made the ETS regulation more binding for polluting firms.
Effectiveness of closed reduction and minimally invasive percutaneous fixation of dorsally displaced distal radius and associated fractures

Introduction: Distal radius fractures & associated wrist injuries are common. No doubt prevails for treatment of volar fragment intraatricular injuries. For dorsal comminution extraarticular & dorsal fragment intraarticular injuries various methods available & all have various implications on optimization of the treatment. Material & Methods: We treated (n=25) patients of distal radius dorsally displaced intraarticular & extraarticular fractures with percutaneous K wires fixation with or without external fixation ligamentotaxis at our unit. All were closed fractures. Age mean was 62.5 years. Preoperatively they were classified according to Frykman classification. Results: Postoperative evaluation by Sarmiento et al. modification of demerit point system of Gartland and Werley. 8% had Excellent, 48% had Good, 32% had Fair & 12% had Poor results. Non union rate was zero (n=0). Average union time was 4.5 weeks. Conclusion: Distal radius fractures treated with percutaneous pinning yields high union rate with closed reduction benefits like fracture hematoma prevention & low infection rates. It also provides mechanical stability with some allowable micromotion as far as dorsal comminution or intararticular dorsal fractures of distal radius concern. It provides cost effective & better alternative to closed reduction & cast treatment.
Doping Effect of W6+ Ions on Microstructural and Magnetic Properties of Mn-Zn Ferrites

Mn-Zn ferrites with different doping contents of W6+ ions were prepared by using standard ceramic technique. The microstructure and magnetic properties of the as-prepared Mn-Zn ferrites were investigated. It was found that all the samples with different contents of W6+ ions consisted of ferrite phase of typical spinel cubic structure. With increasing doping content of W6+ ions, the lattice constant of the ferrites decreased but the grain size increased. Through the measurement of magnetic properties, it was revealed that the saturation magnetization and initial permeability of the samples increased with small doping content of W6+ ions but decreased with additional doping, and the Curie temperature decreased monotonously with W6+ ion doping.
Separation of CO2 from Flue Gas: A Review

Abstract: As a result of human activity, approximately 7 Gt of carbon are emitted to the earth’s atmosphere each year. A large portion of this carbon is in the form of gaseous CO2, and approximately 30% of this CO2 comes from fossil fuel power plants. In addition to rising levels of atmospheric CO2, the earth’s temperature is increasing. Since CO2 can act as a trap for heat (similar to the glass in a greenhouse), reduction of CO2 emissions is an important area of research. Separation and sequestration of CO2 are near-term goals for emissions reduction. Better fuel efficiency (in power production, transportation, and other areas) can be considered a mid-term goal. An acceptable long-term goal for reducing emissions is using alternate power sources such as nuclear, solar, and wind power. Because separation and sequestration are short-term goals, they are critical and challenging steps for researchers. Methods that are reviewed in this paper include absorption using solvents or solid sorbents, pressure- and temperature-swing adsorption using various solid sorbents, cryogenic distillation, membranes, and several novel and emerging technologies. Upon completion of this review, it was concluded that the most promising current method for CO2 separation is liquid absorption using monoethanolamine (MEA). While this method is currently most promising, the development of ceramic and metallic membranes for membrane diffusion should produce membranes significantly more efficient at separation than liquid absorption. The other methods investigated in this report are either too new for comparison or appear unlikely to experience significant changes to make them desirable for implementation.
HF and DFT calculations of MgO surface energy and electrostatic potential using two‐ and three‐periodic models

Hartree–Fock (HF) and density functional (DFT) LCAO calculations of single (2D) and periodical (3D) slab models of MgO crystal are presented. HF and DFT methods produce very close results for the surface energy and electrostatic potential and exhibit the same convergence properties, with the slab thickness increasing both for 2D and 3D models. © 2004 Wiley Periodicals, Inc. Int J Quantum Chem, 2004
The Effects of Perch Cooling on Behavior, Welfare Criteria, Performance, and Litter Quality of Broilers Reared at High Temperatures with Different Litter Thicknesses

The first aim of this study was to investigate the effects of perch cooling and different litter thicknesses on litter quality of the housing facility, welfare criteria (incidence of footpad and hock burns, gait score, plumage cleanliness and damages), heterophil/lymphocyte ratio, growth, and carcass compositions of broilers reared at high ambient temperature. Secondly, the study was conducted to determine whether cooled perches would be preferred by broiler chickens exposed to a hot environment, and subsequently, whether the utilization of these perches would improve the welfare and performance of broilers, beyond those provided by non-cooled perches. A total of 459 1-day-old male broiler chicks were randomly assigned to nine treatment groups based on the perch treatment (no perch, non-cooled, cooled perches) and litter thicknesses (1, 7, 14 cm) with three replicates. Aerial ammonia and litter moisture levels were lower in broilers reared at 14 cm litter thickness group than in broilers reared at 1 cm thickness group. The perch-contact incidence of chickens reared under the cooled perch was found higher than the non-cooled chickens at 36 to 42 days of age. Cooled perches and 14 cm of litter thickness tended to decrease the incidence of footpad and hock burn. The body weight gain of the broilers in cooled perch group was higher than those in no perch and non-cooled perch groups at 0-42 d (p<0.05). These results suggest that cool perches have a beneficial effect on the performance and welfare of broilers.
Characterization and Photocatalytic Performance of Rb+-Doped TiO2 Photocatalysts

ABSTRACT Rb+-doped TiO2 nanoparticles with higher photocatalytic activity were prepared by sol–gel method. The prepared samples were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), energy dispersive analysis of X-rays (EDAX), and surface area (BET) measurements. The photocatalytic activity for the degradation of rhodamine B (RhB) was evaluated. The effects of calcination temperature, Rb+-doping amount, and the dosage of catalyst in the reaction liquid were investigated. The results showed that Rb+ doping can inhibit phase transformation from anatase to rutile, increase surface area of TiO2 crystals, and reduce crystallite size. TiO2 doped with 1% Rb+ and calcined at 650°C shows much higher photoactivity than the others when the doping level of Rb+ and calcination temperature are 0–5% and 350–850°C, respectively. The kinetics of the degradation of RhB was also analyzed. The kinetics of this reaction fits the pseudo first-order kinetics model well, and the reaction rate constants for pure TiO2 and Rb1-650 are 0.086 min−1 and 0.226 min−1 respectively. Doping with Rb+ improves the photocatalytic activity of TiO2 significantly.
Distance-dependent electronic coupling at molecule-metal interfaces: C60/Cu(111)

We probe electronic interaction at molecular-solid/metal interfaces in the model system of C60/Cu(111) using femtosecond two-photon photoemission (2PPE) spectroscopy. The second lowest unoccupied molecular orbital (LUMO+1) and the LUMO+2 levels in C60 are transiently populated via the creation of electronic excitons, with lifetimes in the 10-14−10-13 s region, likely due to self-trapping and/or decay into lower-lying exciton states. These lifetimes decrease as film thickness decreases. The effect is seen for films as thick as 50 A and is attributed to quenching via charge transfer between the Cu substrate and electronic bands in C60. The rates of quenching are found to depend exponentially on film thickness, with a β value of 0.11 ± 0.02 A-1 for both LUMO+1 and the LUMO+2 levels.
How to balance the treatment of stress urinary incontinence among female athletes?

Urinary incontinence in the general population occurs in 7% of non-pregnant women under 39 years old, 17% of those 40 to 59 years old, and 23–32% of those over 60 years old. In athletes the prevalence is higher, especially in high-impact training and gravity sports. Pelvic floor muscles (PFM) have two important roles; they serve as the support for abdominal organs and are crucial for closure of the urethra, vagina and rectum. We present the proper mechanisms of PFM caudal contractions with proper abdominal muscle control to avoid excessive intra-abdominal pressure. Pelvic floor sonography is discussed as the only objective method for pelvic floor examination among sportswomen and a tool which should be used routinely by urophysiotherapists and urogynecologists. A multidisciplinary individualized approach to stress urinary incontinence among athletes is presented including: physiotherapy, diagnostic imaging, use of a pessary, tampons, pharmacologic and surgical treatment. We present guidelines for stress urinary incontinence treatment in sportswomen of different age.
Cardiopulmonary resuscitation in coronavirus SARS-CoV-2 patients in supine and prone positions

During this Pandemic it has been reported that 5% of cases require an intensive Care Unit Certain patients who present hypoxemia, acidosis, electrolyte disorders or adverse effects of drugs such as hydroxychloroquine, may end up in Cardiac Arrest in these patients, it is recommended to provide high-quality cardiopulmonary resuscitation with all biosecurity measures What should be done in the event of sudden cardiac arrest? The ethical obligation of health personnel is to resuscitate, but with the responsibility of personal protection, that is, with the precept of the rescuer’s safety first The purpose of this article is to review the protocol on the behavior recommended in the care of patients suffering from cardiac arrest in an environment with a COviD pandemic 19, such as that experienced by the world community today For care and management protocol, AHA, UK and iLCOR guidelines, as well as publications on prone cardiopulmonary resuscitation, will be considered © 2020 Sociedad de Anestesiologia de Chile All rights reserved
Deep Reinforcement Learning for Demand Response in Distribution Networks

Load aggregators can use demand response programs to motivate residential users toward reducing electricity demand during peak time periods. This article proposes a demand response algorithm for residential users, while accounting for uncertainties in the load demand and electricity price, users’ privacy concerns, and power flow constraints imposed by the distribution network. To address the uncertainty issues, we develop a deep reinforcement learning (DRL) algorithm using an actor-critic method. We apply federated learning to enable users to determine the neural network parameters in a decentralized fashion without sharing private information (e.g., load demand, users’ potential discomfort due to load scheduling). To tackle the nonconvex power flow constraints, we apply convex relaxation and transform the problem of updating the neural network parameters into a sequence of semidefinite programs (SDPs). Simulations on an IEEE 33-bus test feeder with 32 households show that the proposed demand response algorithm can reduce the peak load by 33% and the expected cost of each user by 13%. Also, we demonstrate the scalability of the proposed algorithm in 330-bus and 1650-bus feeders with real-time pricing scheme.
Effect of aerobic exercise versus resistance exercise on body mass index in obese patients with type 2 diabetes mellitus

Materials and Methodology: Obese with type 2 diabetes mellitus patients (n=24)both the male and female, age group 39-55yrs were included in this study and patient with current insulin therapy, any exercise therapy from previous 6 months, blood pressure >160/95mmHg and any musculoskeletal, cardiovascular or neurological condition were excluded from the study. A comparative study was done where two groups were made, Group A (n=12) received Aerobic exercise and Group B (n=12) received Resistance exercise. Exercise was given for 3 times a week for 16 weeks. Outcome measures were Body Mass Index and Skinfold Caliper. Aerobic exercise and Resistance exercise both were effective for reducing Body Mass Index in obese with type 2 Diabetes mellitus. But There were significant changes on BMI (p
Ultrawideband Circularly Polarized Antenna With Shared Semicircular Patches

A low-profile ultrawideband antenna of circular polarization (CP) is proposed in this communication. This antenna consists of two layers of Rogers RT/Duroid 5880 PCB board of 0.79 mm thickness. The size of the top PCB is 54.6 mm <inline-formula> <tex-math notation="LaTeX">$\times54.6$ </tex-math></inline-formula> mm, and four pairs of semicircular patches are printed on both its top and bottom sides. This top PCB is placed 10.5 mm above the bottom PCB, which is 95 mm <inline-formula> <tex-math notation="LaTeX">$\times95$ </tex-math></inline-formula> mm in size. On the top side of the bottom PCB is a 1-to-4 microstrip feeding network with 90° phase difference between the adjacent ports, while the ground plane is on its bottom side. The top PCB is supported by four small trapezoid-shaped PCB boards at the center of its four edges, respectively. A slot line is printed on each trapezoidal PCB to feed the patches. Both the simulation and measurement results show that this low-profile antenna has a very wide 10 dB return loss bandwidth from 2.9 to 9 GHz. Meanwhile, lower than 3 dB axial ratio can be achieved from 3 to 7.8 GHz and its right-hand circular polarized (RHCP) gain is higher than 8 dBic. The good performance of this antenna can justify that it is a promising candidate for indoor positioning applications that require CP.
Device-quality polycrystalline and amorphous silicon films by hot-wire chemical vapour deposition

Abstract We describe how high-quality intrinsic hydrogenated amorphous silicon (a-Si: H), as well as purely intrinsic single-phase hydrogenated polycrystalline silicon (poly-Si: H), can be obtained by hot-wire chemical vapour deposition (HWCVD). The deposition parameter space for these different thin-film materials has been optimized in the same hot-wire deposition chamber. A review of the earlier work shows how such high-quality films at both ends of the amorphous-crystalline scale have evolved. We incorporated both the amorphous and the polycrystalline silicon films in n-i-p solar cells and thin-film transistors (TFTs). The solar cells, with efficiencies in excess of 3%, confirm the material quality of both the a-Si: H and the poly-Si: H i-layer materials, but more work is needed to improve the interfaces with the doped layers. The TFTs made with a-Si: H and poly-Si: H channels show quite similar characteristics, such as a field-effect mobility of 0·5cm2 V−1 s−1, indicating that the channel region has a.
Bayesian compressive sensing for synthetic-aperture radar tomography imaging

To achieve high-resolution three-dimensional images, a number of imaging methods based on compressive sensing (CS) have been suggested in the recent years for synthetic-aperture radar (SAR) tomography. However, the CS-based methods are sensitive to noise. In this work, we develop a new Bayesian compressive sensing (BCS) imaging method for the SAR tomography. In the framework of BCS, a ‘sparseness’ prior distribution of the imaging scene and an additive noise are properly considered in the imaging process. As a consequence, the BCS-based method under the conditions of low noise levels can provide a better performance than the common norm-based CS methods. The results obtained via simulations of our SAR-tomography imaging method confirm its advantages.
Passivation and Depassivation of Si – SiO2 Interfaces with Atomic Hydrogen

The influence of atomic hydrogen on the surface passivation of the Si―SiO 2 interface is investigated. Inductively coupled photoconductivity decay measurements indicate an increase in carrier recombination at the surfaces following atomic hydrogen exposure, as measured by an increase in the emitter saturation current density. These defects are not thermally stable and are removed by subsequent thermal treatments above 300°C in N 2 . Atomic hydrogen results in the passivation of a certain fraction of thermally stable interface defects. However, the fraction of defects passivated is always slightly lower than can be achieved by exposure to molecular hydrogen. A variation in a sample temperature during atomic H exposure in the range of 25―400°C does not have a significant impact on the passivation efficiency.
Phylogenetic systematics and biogeography of Coptis (Ranunculaceae), an eastern Asian and North American genus

The goldthread genus Coptis includes 15 species disjunctly distributed in eastern Asia and North America. Here, we provide a dated phylogeny for the genus with all 15 species. Our results indicate that Coptis contains two strongly supported clades (I and II). Clade I consists of subg. Coptis and sect. Japonocoptis of subg. Metacoptis; clade II composes sect. Japonocoptis of subg. Metacoptis. Central leaflet base, sepal shape, and petal blade carry a strong phylogenetic signal in Coptis, while leaf type, sepal and petal color, and petal shape exhibit relatively higher levels of evolutionary flexibility. Our dating and biogeographic analyses indicate that a vicariance event between Japan-North America occurred in the middle Miocene, resulting in the split of Coptis and its sister group. Subsequently, a colonization event occurred at 9.55 Ma from Japan to mainland China. Both vicariance and dispersal events have played important roles in shaping the current distribution and endemism of Coptis, likely resulting from eustatic sea-level changes, mountain formation processes and an increasing drier and cooler climate from the middle Miocene onwards.