Miracle-dz/UniFAR-FTUs huggingface dataset:
Description and evaluation of the JULES-ES set-up for ISIMIP2b

Abstract. Global studies of climate change impacts that use future climate model projections also require projections of land surface changes. Simulated land surface performance in Earth system models is often affected by the atmospheric models' climate biases, leading to errors in land surface projections. Here we run the Joint UK Land Environment Simulator Earth System configuration (JULES-ES) land surface model with the Inter-Sectoral Impact Model Intercomparison Project second-phase future projections (ISIMIP2b) bias-corrected climate model data from four global climate models (GCMs). The bias correction reduces the impact of the climate biases present in individual models. We evaluate the performance of JULES-ES against present-day observations to demonstrate its usefulness for providing required information for impacts such as fire and river flow. We include a standard JULES-ES configuration without fire as a contribution to ISIMIP2b and JULES-ES with fire as a potential future development. Simulations for gross primary productivity (GPP), evapotranspiration (ET) and albedo compare well against observations. Including fire improves the simulations, especially for ET and albedo and vegetation distribution, with some degradation in shrub cover and river flow. This configuration represents some of the most current Earth system science for land surface modelling. The suite associated with this configuration provides a basis for past and future phases of ISIMIP, providing a simulation set-up, postprocessing and initial evaluation, using the International Land Model Benchmarking (ILAMB) project. This suite ensures that it is as straightforward, reproducible and transparent as possible to follow the protocols and participate fully in ISIMIP using JULES.
Growth rate, haematology and serum biochemistry of broilers fed diets supplemented with choline chloride

The study evaluated the effect of choline chloride (CC) supplementation on growth rate, haematology and serum biochemistry of broilers. 120-day-old broiler chicks were randomly divided into four groups of 30 birds each and these were further sub-divided into 3 replicates of 10 birds each. Group A served as the control while the diets of groups B, C and D were supplemented with 0.5 g/kg, 0.75 g/kg and 1 g/kg of CC respectively. 6weeks post-supplementation, haematology, serum biochemistry, total weight gain, feed efficiency and carcass characteristics were determined. Group C (0.75 g/kg choline) had a significantly (p<0.05) higher feed efficiency (49.18%) than other choline-supplemented groups and control. There was no significant difference (p>0.05) in the mean values of AST, ALT, total protein and creatinine across all groups. However, the ALP and cholesterol values of group D (4.42 U/L and 1.68 mg/dl respectively) were significantly (p<0.05) higher than other groups. Lymphocyte counts of Group D was significantly (p<0.05) lower than all other groups. The spleen weight (0.27 g) of group D was significantly (p<0.05) higher than all other groups, but there was no significant difference (p>0.05) in the relative weights of other organs of all four groups. The values of the breast weight/width, drumstick length/width, wing length and carcass length did not vary significantly across the supplemented-groups, but the breast-length, thigh weight/length/width, drumstick-weight, wing weight/width and carcass-weight of the control group were significantly higher than the supplemented-groups. Choline chloride supplementation at 0.75 g/kg may have contributed to improved feed efficiency but not with a corresponding excellent carcass yield.
DFCWs Design Based on Improved DPSO

Orthogonal discrete frequency coding waveforms(DFCWs) is an ideal quasi-orthogonal waveform. This paper analyses the ambiguity function of DFCWs and the results indicate that the correlation characteristics of DFCWs have only relationship with the code length and coding order. Based on the theoretical analysis, we defined the cross-correlation energy as the cost function, and used the improved discrete particle swarmoptimization(DPSO) to optimize the order of DFCWs. The new signal can effectively restrain the cross-correlation level between the two DFCWs. Simulation results verify the effectiveness of the designed DFCWs.
THE 2014 HENRY NORRIS RUSSELL LECTURE: A CAREER IN ASTRONOMY

This paper is quite different from the taped lecture that was shown at the Seattle meeting of the AAS in 2015 January (Field 2015). I want to provide something useful for future research, and the topics I am familiar with are largely mathematical and therefore not easy to convey to a large audience of astronomers. Here I will focus on that part of my research that might be useful in the future. I am honored to be chosen by my colleagues as the Henry Norris Russell Lecturer for 2014. There are many others more worthy. I do have one distinction, however; I met Russell himself in 1954, and my thesis advisor, Lyman Spitzer, was his student. Like many of my generation, I learned astronomy from the text by Russell, Dugan, and Stewart. I have always admired his ability to contribute both to theoretical quantum physics and to observational astronomy. I decided to become an astronomer in high school upon reading the popular books of Eddington and Jeans. I found their theoretical approach compelling, and even now use the Eddington approximation and the Jeans mass in my research. I got the BS in Physics at MIT in 1951, and during a year working in Washington, I read about astrophysics programs at various universities. It appeared to me that for a theorist, a PhD from Princeton, where Lyman Spitzer and Martin Schwarzschild held sway, would be the very best, so I applied for graduate work there. I had taken a night course in nuclear physics with George Gamow at George Washington University and asked him for a recommendation. It arrived—late—on a postcard stating that “Field is OK. ” My PhD in 1955 was on radiation by plasma oscillations induced by shock waves in the solar corona, which led me to an interest in radio astronomy, so I took an opportunity while a student to spend a summer in Washington working on a 21 cm project at the Department of Terrestrial Magnetism. When I got a postdoc at Harvard I signed up with Bart Bok’s group working with a 60 foot dish on 21 cm observations of interstellar atomic hydrogen, H I. I have been working on the ISM ever since.
Electrostatic force microscopy of silver nanocrystals with nanometer-scale resolution

Silver nanoparticles on graphite basal plane surfaces were concurrently imaged using electrostatic force microscopy (EFM) and noncontact atomic force microscopy. EFM images were obtained having a lateral resolution of 4–5 nm, and a resolution perpendicular to the surface of ≈1 nm. The dependence of the contrast in the EFM data for the silver nanoparticles as a function of the applied tip bias was consistent with a positive charge for the silver nanocrystals on the graphite surface, qualitatively as expected by theory.
The ages of high-redshift radio galaxies

The observed spectral energy distributions (SEDs) of high-redshift radio galaxies with stellar population synthesis models were compared. It is shown that the flat ultraviolet plus red bump SED observed in these galaxies can be produced with a normal initial mass function in approximately less than 300 million yr and persists for more than 600 million yr if most of the stars form on time scales of less than 100 million yr. This implies that many of the observed powerful radio galaxies with z = 1-4 are young, and that they are being observed soon after the event that produced the bulk of their stars. If such an event were organized by the powerful radio sources associated with these objects, this could account for the alignment of the optical/infrared emission with the radio axes observed in these sources, while maintaining the low dispersion and continuity of the infrared Hubble diagram. 32 refs.
SINGULAR PERTURBATION TECHNIQUES APPLIED TO MULTIASSET OPTION PRICING

It is well known that option valuation problems with multiple‐state variables are often problematic to solve. When valuing options using lattice‐type techniques such as finite‐difference methods, the curse of dimensionality ensures that additional‐state variables lead to exponential increases in computational effort. Monte Carlo methods are immune from this curse but, despite advances, require a great deal of adaptation to treat early exercise features. Here the multiunderlying asset Black–Scholes problem, including early exercise, is studied using the tools of singular perturbation analysis. This considerably simplifies the pricing problem by decomposing the multi‐dimensional problem into a series of lower‐dimensional problems that are far simpler and faster to solve than the full, high‐dimensional problem. This paper explains how to apply these singular perturbation techniques and explores the significant efficiency improvement from such an approach.
Problems of quantifying effects of microwave irradiation on the blood‐brain barrier

The question of whether microwave irradiation in the absence of gross or focal heating has any effect on normal function of the blood-brain barrier has not been clearly answered. Two reasons for this ambiguity relate to the unknown magnitudes of microwave-induced effects and to the sensitivity and quantitative accuracy of measurement. Histological and physiological methods are compared. Seven different physiological methods that involve four different tracer-input modalities, which are currently being used to study and quantify the blood-brain-barrier permeability, are discussed; their advantages and disadvan-tages are presented and their applicability to the study of effects of microwaves on normal blood-brain-barrier function are compared.
Particle filters for the magnetoencephalography inverse problem: increasing the efficiency through a semi-analytic approach (Rao–Blackwellization)

We consider the problem of dynamically estimating the parameters of point-like neural sources from magnetoencephalography data. Since the problem is non-linear, we apply the sequential Monte Carlo algorithms known as particle filters for solving the Bayesian filtering problem. We suggest that the linear dependence of the data on a subset of the parameters allows the analytic computation of the posterior density for these parameters, i.e. Rao-Blackwellization; this considerably improves the accuracy of the method and its statistical efficiency.
Disentangling formation of multiple-core holes in aminophenol molecules exposed to bright X-FEL radiation

Competing multi-photon ionization processes, some leading to the formation of double core hole states, have been examined in 4-aminophenol. The experiments used the linac coherent light source (LCLS) x-ray free electron laser, in combination with a time-of-flight magnetic bottle electron spectrometer and the correlation analysis method of covariance mapping. The results imply that 4-aminophenol molecules exposed to the focused x-ray pulses of the LCLS sequentially absorb more than two x-ray photons, resulting in the formation of multiple core holes as well as in the sequential removal of photoelectrons and Auger electrons (so-called PAPA sequences).
Measurement of spatial information in sound fields by closely located four point microphone method.

When we estimate a sound field in a room, it is important to grasp the spatial informa-tion, especially of the early reflection periods. In this paper we'll discuss a way to grasp the spatial information of sound fields from impulse responses measured at closely located four points, the origin and three points of the same distance (3∼5cm) from the origin on the rectangular coordinate axes. From these four impulse responses the coordinates and powers of virtual image sources are calculated by correlation technique or intensity technique. Concert halls, opera theaters and many other sound fields are measured by this technique. The distributions of virtual image sources and directivity patterns of some concert halls are shown.
Shock-Generated X-ray Emission in Radiatively-Driven Winds: A Model for Tau Scorpii

A one-dimensional radiation-hydrodynamics code is used to numerically investigate the structure and evolution of shocks in the winds of hot stars. Results are presented for the specific case of Tau Sco, a well-studied main-sequence B star for which there are X-ray data from the Einstien satellite's Solid State Spectrometer. A phenomenological radiative acceleration term and a mass-loss rate consistent with UV observations, are used to determine the time dependence of the temperatures within and X-ray emission from an isolated shock region. The driving acceleration leads to the formation of a two-component shock zone with 'forward' and 'reverse' shocks, each with their own characteristic temperature. A denser cold region forms between the two shocks, which could potentially account for the presence of narrow absorption features that are observed in the UV P Cygni profiles of many hot stars. The X-ray emission spectra from the shocks in the calculations are in good general agreement with two-temperature model fits to Einstein X-ray observations.
Whole earth telescope observations of the DBV white dwarf GD 358

We report on the analysis of 154 hours of early continuous high-speed photometry on the pulsating DB white dwarf (DBV) GD 358, obtained during the Whole Earth Telescope (WET) run of 1990 May. The power spectrum of the light curve is dominated by power in the range from 1000 to 2400 microHz with more than 180 significant peaks in the total spectrum. We identify all of the triplet frequencies as degree l = 1, and from the details of their spacings we derive the total stellar mass as 0.61 + or - 0.03 solar mass, the mass of the outer helium envelope as 2.0 + or - 1.0 x 10(exp -6) M(sub *), the absolute luminosity as 0.050 + or - 0.012 solar luminosity and the distance as 42 + or - 3 pc. We find strong evidence for differential rotation in the radial direction -- the outer envelope is rotating at least 1.8 times faster than the core -- and we detect the presence of a weak magnetic field with a strength of 1300 + or - 300 G. We also find a significant power at the sums and differences of the dominant frequencies, indicating nonlinear processes are significant, but they have a richness and complexity that rules out resonant mode coupling as a major cause.
An Improved Method of Permutation Correction in Convolutive Blind Source Separation

This paper proposes an improved method of solving the permutation problem inherent in frequency-domain of convolutive blind source separation (BSS). It combines a novel inter-frequency dependence measure: the power ratio of separated signals, and a simple but effective bin-wise permutation alignment scheme. The proposed method is easy to implement and surpasses the conventional ones. Simulations have shown that it can provide an almost ideal solution of the permutation problem for a case where two or three sources were mixed in a room with a reverberation time of 130 ms.
Hybrid metasurface for ultra-broadband terahertz modulation

We demonstrate an ultra-broadband free-space terahertz modulator based on a semiconductor-integrated metasurface. The modulator is made of a planar array of metal cut-wires on a silicon-on-sapphire substrate, where the silicon layer functions as photoconductive switches. Without external excitation, the cut-wire array exhibits a Lorentzian resonant response with a transmission passband spanning dc up to the fundamental dipole resonance above 2 THz. Under photoexcitation with 1.55 eV near-infrared light, the silicon regions in the cut-wire gaps become highly conductive, causing a transition of the resonant metasurface to a wire grating with a Drude response. In effect, the low-frequency passband below 2 THz evolves into a stopband for the incident terahertz waves. Experimental validations confirm a bandwidth of at least 100%, spanning 0.5–1.5 THz with −10 dB modulation depth. This modulation depth is far superior to −5 dB achievable from a plain silicon-on-sapphire substrate with effectively 25 times higher pumping energy. The proposed concept of ultra-broadband metasurface modulator can be readily extended to electrically controlled terahertz wave modulation.
Effect of a hybrid team-based advanced cardiopulmonary life support simulation program for clinical nurses

Background: During in-hospital cardiac arrest events, clinical nurses are often the first responders; therefore, nurses require sufficient advanced cardiac life support (ACLS) competency. This study aimed to verify the effects of a hybrid team-based ACLS simulation (HTAS) program (developed in this study) on nurses’ ACLS performance, specifically ACLS knowledge, cardiopulmonary resuscitation (CPR) self-efficacy, and CPR-related stress. Methods: The developed HTAS comprised four lecture videos, one team-based skills training video, and a team-based ACLS simulation. A quasi-experimental pretest-posttest design with a comparison group (CG) was used to evaluate the effectiveness of the HTAS. Of the 226 general ward nurses with more than 6 months of clinical experience, 117 were allocated to the intervention group (IG), which attended the HTAS, and 109 to the CG, which attended only basic ACLS training. Results: The IG’s ACLS performance significantly improved (t = 50.8, p < 0.001) after the training. Relative to the respective pretest conditions, posttest ACLS knowledge (t = 6.92, p < 0.001) and CPR self-efficacy (t = 6.97, p < 0.001) of the IG also significantly increased. However, when the mean difference values were compared, there was no significant difference between the two groups with respect to ACLS knowledge (t = 1.52, p = 0.130), CPR self-efficacy (t = -0.42, p = 0.673), and CPR stress (t = -0.88, p = 0.378). Conclusion: The HTAS for ward nurses was effective at enhancing the nurses’ ACLS performance. It is necessary to develop effective training methods for team-based ACLS and verify the sustained effects of such training.
The moderating role of informatization between country risks and international tourism: A cross-country panel analysis

Informatization plays an increasingly important role in the tourism industry, while its effectiveness in alleviating tourism risks remains to be verified. This research aims to explore the effects of country risks on the international tourism and the moderating role of informatization between the two. This study firstly measures country risks based on the ICRG database, quantifies international tourism by tourism revenue, tourism expenditure, and tourist arrival, and calculates informatization level from informatization facilities, informatization applications, and informatization skills. A dynamic SYS-GMM model is then adopted to verify the research hypotheses based on the panel data of 138 countries from 2000 to 2019. The research results show that the composite country risk, political risk, economic risk, and financial risk all show a negative impact on the international tourism indicators regardless of different time periods, regions, or income levels. However, the effects are more obvious before the global financial crisis in 2008 and regions and countries with lower income levels. In addition, informatization is found to positively mitigate the adverse impacts of country risks on international tourism, especially for economic and financial risks. The research findings indicate the risk hedge potential of informatization in the tourism industry, which provides a profound reference for destination risk management.
Organ-on-a-chip for perinatal biology experiments

Cell culture and organ explant systems have traditionally been used by scientists in the reproductive biology and perinatal medicine area to address various research questions. Although most are unrelated to human pregnancy, animal models were also extensively used to study various mechanisms associated with pregnancy and parturition. However, limitations of traditional approaches have shifted the attention to the use of organ on a chip (OOC) technology. OOC platform simulates an organ using cells, and OOCs are biomimetic microfluidic systems comprising multiple cell types from an organ that mimic the environment of a physiological organ. OOC maintains intercellular interactions and helps to recreate organ physiology as expected for utero in perinatal medicine research. This short review introduces some basic concepts of OOC, and its utility based on some published reports
Clinical and laboratory characterization of adult sickle cell anemia patients in Kinshasa

Background Sickle cell anemia (SCA) is a monogenic hemoglobinopathy associated with severe acute and chronic complications, with the highest incidence worldwide in Sub-Saharan Africa. The wide variability in clinical manifestations suggest that a uniform response to hydroxurea may not be attained. In view of a potential treatment with hydroxyurea (HU), we assessed the variability of clinical and hematological manifestations in a cohort of adults with SCA in Kinshasa, capital of the DR Congo in Central Africa. Methods A cross-sectional study was conducted in a hospital dedicated to SCA management in Kinshasa. Clinical history of patients was recorded, a complete physical examination performed. The diagnosis was confirmed by means of DNA analysis. A full blood count and hemolysis markers were measured. The severity of the disease was evaluated by means of a previously reported score. Results The study group consisted of 166 genetically confirmed SCA patients. The SCA severity was mild in 28.9%, moderate in 64.5% and severe in 6.6%. The disease severity score increased with patient’s age (p ≤ 0.001). The severity was higher in males compared to females (p = 0.012). In males, the severity score was correlated with the presence of priapism (p = 0.045), a manifestation not previously incorporated in the severity score. The severity score was inversely correlated with the fetal hemoglobin (HbF) rate (p = 0.005). Malnutrition (BMI <18.5 kg/m2) was present in 47% of patients and was related to the male sex, hip disease (aOR 3.11; p = 0.019) and severe phenotype (aOR 3.53; p = 0.012). Leg ulcers were more frequent in males than in females (p = 0.001; OR 24.3) and were correlated with the number of days of hospitalization (p = 0.029). Hip disease was related to the increasing age (p = 0.008). Conclusion In this selected, hospital-based populations of adults with SCA, severe disease was rare, which may be due to survival bias. However, two thirds had moderate severity of the disease, mostly with a low HbF, and they may benefit from HU treatment. In the Central-African setting the separation between vaso-occlusive and hyperhemolytic sub-phenotypes was not applicable.