Miracle-dz/UniFAR-FTUs huggingface dataset:
Bioavailability of Phosphorus in Low Phytic Acid Barley

SUMMARY A study was conducted to determine the bioavailability of P in a low phytic acid mutant barley (Hordeum vulgare L.; MB) containing the lpa 1-1 allele and a near-isogenic wild-type hybrid barley (NB). By analysis, the MB contained 0.21% non-phytate P (nP) and 0.35% total P (tP), whereas NB contained 0.11% nP and 0.35% tP. Non-phytate P was considered to be available to poultry. Reagent grade KH2PO4 was used as a standard source to determine relative availability. The experimental design consisted of 10 dietary treatments fed to six replicate pens of six chicks each. Dietary treatments included a low available P (aP) basal diet (0.20% aP; 1.0% Ca; Diet 1) supplemented with 0.04, 0.08, and 0.12% P from reagent-grade KH2PO4 (Diets 2, 3, and 4, respectively), MB (Diets 5, 6, and 7, respectively), and NB (Diets 8, 9, and 10, respectively). Diets were fed ad libitum for 14 d. Feed intake was not affected (P > 0.10) by source or level of P. Body weight gain was not influenced (P > 0.05) by P level, but was affected (P < 0.05) by P source. Feed conversion was influenced (P < 0.05) by both P source and level. Based on non-linear regression analysis (assuming KH2PO4 = 100%) and using percentage toe ash as the response variable, bioavailability of P was determined to be 49.3 ± 17% for MB and 28.0 ± 15% for NB. Based on the results of toe ash, P in MB was 1.8 times more available to chicks than P in NB. These results compare favorably with analyzed nP values, which indicated that MB contains 1.9 times as much nP as NB (0.21 vs. 0.11%).
Origin, evolution and taxonomy of American Roccella (Roccellaceae, Ascomycetes)

Abstract The phylogeny and taxonomy of four American Roccella species are presented: R. bajasurensis (newly described here), R. decipiens, R. gracilis and R. verruculosa. A key to all nine American Roccella species is also presented. The data from four molecular markers, RPB2, nuLSU, ITS 1 and 2 and an anonymous locus showed that the specimens of what was believed to be the one fertile species, Roccella decipiens, actually belonged to two distinct species: one usually corticolous, facultatively fertile‐sorediate species, Roccella gracilis, and one strictly saxicolous, obligately fertile species R. decipiens. The American Roccella species were found to belong to a significantly supported, monophyletic group with most Macaronesian species as its sister group and all other Roccella species distributed in the Old World. Vicariance contra long distance dispersal is discussed in explaining biogeographical patterns.
Generalizable, Reproducible, and Neuroscientifically Interpretable Imaging Biomarkers for Alzheimer's Disease

Precision medicine for Alzheimer's disease (AD) necessitates the development of personalized, reproducible, and neuroscientifically interpretable biomarkers, yet despite remarkable advances, few such biomarkers are available. Also, a comprehensive evaluation of the neurobiological basis and generalizability of the end‐to‐end machine learning system should be given the highest priority. For this reason, a deep learning model (3D attention network, 3DAN) that can simultaneously capture candidate imaging biomarkers with an attention mechanism module and advance the diagnosis of AD based on structural magnetic resonance imaging is proposed. The generalizability and reproducibility are evaluated using cross‐validation on in‐house, multicenter (n = 716), and public (n = 1116) databases with an accuracy up to 92%. Significant associations between the classification output and clinical characteristics of AD and mild cognitive impairment (MCI, a middle stage of dementia) groups provide solid neurobiological support for the 3DAN model. The effectiveness of the 3DAN model is further validated by its good performance in predicting the MCI subjects who progress to AD with an accuracy of 72%. Collectively, the findings highlight the potential for structural brain imaging to provide a generalizable, and neuroscientifically interpretable imaging biomarker that can support clinicians in the early diagnosis of AD.
Evolution of C iv Absorbers. I. The Cosmic Incidence

We present a large high-resolution study of the distribution and evolution of C iv absorbers, including the weakest population with equivalent widths . By searching 369 high-resolution, high signal-to-noise ratio spectra of quasars at from Keck/HIRES and VLT/UVES, we find 1268 C iv absorbers with Å (our ∼50% completeness limit) at redshifts . A Schechter function describes the observed equivalent width distribution with a transition from power-law to exponential decline at . The power-law slope α rises by ∼7%, and the transition equivalent width W ⋆ falls by ∼20% from to 3.6. We find that the comoving redshift path density, , of Å absorbers rises by ∼1.8 times from z ≃ 4.0 to 1.3, while the Å rises by a factor of ∼8.5. We quantify the observed evolution by a model in which decreases linearly with increasing redshift. The model suggests that populations with larger thresholds evolve faster with redshift and appear later in the universe. The cosmological Technicolor Dawn simulations at z = 3–5 overproduce the observed abundance of absorbers with while yielding better agreement at higher . Our empirical linear model successfully describes C iv evolution in the simulations and the observed evolution of Å C iv for the past . Combining our measurements with the literature gives us a picture of C iv absorbing structures becoming more numerous and/or larger in physical size over the last of cosmic time (z ∼ 6–0).
Constraints on mixed dark matter model of particles and primordial black holes from the Galactic 511 keV line

The 511 keV line was first detected in 1970's but its origin is still unknown. It was proposed that positrons from dark matter (DM) particles in the halo of galaxy are possible sources. We consider a mixed DM model consisting of DM particles and primordial black holes (PBHs). With the existence of PBHs, the DM particles may be gravitationally bound to the PBHs and form halo around PBHs with density spikes. These density spikes can enhance the production rate of positrons from DM particles, thus they are constrained by the observations of 511 keV line. We compute the profile of the density spikes, and get the constraints on the fraction of PBHs in DM $f_{\mathrm{PBH}}$ for light dark matter (LDM) scenario and excited dark matter (XDM) scenario respectively. For LDM with mass in the range of $1\mathrm{MeV} \sim 3\mathrm{MeV}$, the constraints are loose. For XDM with mass in the range of $10\mathrm{GeV} \sim 1\mathrm{TeV}$, the constraints have $M_{\mathrm{PBH}}^{-2}$ slope in the relative small mass range, and roughly have $M_{\mathrm{PBH}}^{2/5}$ slope in the relative large mass range. The most stringent constraint $f_{\mathrm{PBH}} \lesssim 10^{-11}$ appears at the turning point which depends on the mass of XDM.
Exploring AGN and star formation activity of massive galaxies at cosmic noon

We investigate the relation between AGN and star formation (SF) activity at $0.5 10^{44}$ erg s$^{-1}$) and a large comparison sample of $\sim 320,000$ galaxies without X-ray luminous AGN. Our samples are selected from a large (11.8 deg$^2$) area in Stripe 82 that has multi-wavelength (X-ray to far-IR) data. The enormous comoving volume ($\sim 0.3$ Gpc$^3$) at $0.5 10^{11} \ M_{\odot}$) and X-ray luminous AGN. While many galaxy studies discard AGN hosts, we fit the SED of galaxies with and without X-ray luminous AGN with Code Investigating GALaxy Emission (CIGALE) and include AGN emission templates. We find that without this inclusion, stellar masses and star formation rates (SFRs) in AGN host galaxies can be overestimated, on average, by factors of up to $\sim 5$ and $\sim 10$, respectively. The average SFR of galaxies with X-ray luminous AGN is higher by a factor of $\sim 3$ to $10$ compared to galaxies without X-ray luminous AGN at fixed stellar mass and redshift, suggesting that high SFRs and high AGN X-ray luminosities may be fueled by common mechanisms. The vast majority ($> 95 \%$) of galaxies with X-ray luminous AGN at $z=0.5-3$ do not show quenched SF: this suggests that if AGN feedback quenches SF, the associated quenching process takes a significant time to act and the quenched phase sets in after the highly luminous phases of AGN activity.
Integrating Image Captioning with Rule-based Entity Masking

Given an image, generating its natural language description (i.e., caption) is a well studied problem. Approaches proposed to address this problem usually rely on image features that are difficult to interpret. Particularly, these image features are subdivided into global and local features, where global features are extracted from the global representation of the image, while local features are extracted from the objects detected locally in an image. Although, local features extract rich visual information from the image, existing models generate captions in a blackbox manner and humans have difficulty interpreting which local objects the caption is aimed to represent. Hence in this paper, we propose a novel framework for the image captioning with an explicit object (e.g., knowledge graph entity) selection process while still maintaining its end-to-end training ability. The model first explicitly selects which local entities to include in the caption according to a human-interpretable mask, then generate proper captions by attending to selected entities. Experiments conducted on the MSCOCO dataset demonstrate that our method achieves good performance in terms of the caption quality and diversity with a more interpretable generating process than previous counterparts.
Counting multiple graphs in generalized Tur\'an problems

We are given graphs $H_1,\dots,H_k$ and $F$. Consider an $F$-free graph $G$ on $n$ vertices. What is the largest sum of the number of copies of $H_i$? The case $k=1$ has attracted a lot of attention. We also consider a colored variant, where the edges of $G$ are colored with $k$ colors. What is the largest sum of the number of copies of $H_i$ in color $i$? Our motivation to study this colored variant is a recent result stating that the Turan number of the $r$-uniform Berge-$F$ hypergraphs is at most the quantity defined above for $k=2$, $H_1=K_r$ and $H_2=K_2$. In addition to studying these new questions, we obtain new results for generalized Turan problems and also for Berge hypergraphs.
Comportamento ingestivo de vacas Jersey confinadas durante a fase inicial da lactação

This trial aimed to characterize the ingestive behavior of Jersey dairy cows during cool and warm seasons, and at 30, 60 and 90 days post-partum. Daily time spent eating, ruminating and idling was estimated through visual observations recorded by a well trained observer. Records were made intermittently, using 10 minutes interval during 24 hours, five days per period, totalizing 30 days of observations. Ingestive behavior was recorded for each individual animal. Daily eating and rumination times were larger at warm season compared to the cool one and at 30 days post-partum compared to 90 days post-partum, being associated with positive effects of temperature, photoperiod and fiber content of silage. Live weight decreased from parturition until 30 days post-partum and recovered by 90 days post-partum. Milk production showed a significant interaction effect among season and period, presenting smaller values at 60 than at 30 or 90 days post-partum, specially at warm season, what might be partially related to changes in the silage chemical composition. It is concluded that dairy cows changed ingestive behavior to adapt themselves to different nutritional, environmental (season effect) and anatomical, physiological conditions (effect of number of days after parturition)
Multiplicity of positive solutions for (p,q)-Laplace equations with two parameters

We study the zero Dirichlet problem for the equation [Formula: see text] in a bounded domain [Formula: see text], with [Formula: see text]. We investigate the relation between two critical curves on the [Formula: see text]-plane corresponding to the threshold of existence of special classes of positive solutions. In particular, in certain neighborhoods of the point [Formula: see text], where [Formula: see text] is the first eigenfunction of the [Formula: see text]-Laplacian, we show the existence of two and, which is rather unexpected, three distinct positive solutions, depending on a relation between the exponents [Formula: see text] and [Formula: see text].
First branching fraction measurement of the suppressed decay 
Ξc0→π−Λc+

The Ξ 0 c baryon is unstable and usually decays into charmless final states by the c → s u ¯ d transition. It can, however, also disintegrate into a π − meson and a Λ + c baryon via s quark decay or via c s → d c weak scattering. The interplay between the latter two processes governs the size of the branching fraction B ( Ξ 0 c → π − Λ + c ) , first measured here to be ( 0.55 ± 0.02 ± 0.18 ) % , where the first uncertainty is statistical and second systematic. This result is compatible with the larger of the theoretical predictions that connect models of hyperon decays using partially conserved axial currents and SU(3) symmetry with those involving the heavy-quark expansion and heavy-quark symmetry. In addition, the branching fraction of the normalization channel, B ( Ξ + c → p K − π + ) = ( 1.135 ± 0.002 ± 0.387 ) % is measured.
Grale: Designing Networks for Graph Learning

How can we find the right graph for semi-supervised learning? In real world applications, the choice of which edges to use for computation is the first step in any graph learning process. Interestingly, there are often many types of similarity available to choose as the edges between nodes, and the choice of edges can drastically affect the performance of downstream semi-supervised learning systems. However, despite the importance of graph design, most of the literature assumes that the graph is static. In this work, we present Grale, a scalable method we have developed to address the problem of graph design for graphs with billions of nodes. Grale operates by fusing together different measures of (potentially weak) similarity to create a graph which exhibits high task-specific homophily between its nodes. Grale is designed for running on large datasets. We have deployed Grale in more than 20 different industrial settings at Google, including datasets which have tens of billions of nodes, and hundreds of trillions of potential edges to score. By employing locality sensitive hashing techniques, we greatly reduce the number of pairs that need to be scored, allowing us to learn a task specific model and build the associated nearest neighbor graph for such datasets in hours, rather than the days or even weeks that might be required otherwise. We illustrate this through a case study where we examine the application of Grale to an abuse classification problem on YouTube with hundreds of million of items. In this application, we find that Grale detects a large number of malicious actors on top of hard-coded rules and content classifiers, increasing the total recall by 89% over those approaches alone.
Vertical Stratification in Orb‐Web Spiders (Araneidae, Araneae) and a Consideration of Other Methods of Coexistence

Measurements of the web height and counts of the number of webs on randomly selected plots in lespedeza fields reveal that immature Argiope aurantia and Argiope trifasciata, very large araneid spiders, place their webs at different heights. In late summer this vertical stratification disappears, while the numbers of the two species on plots become positively correlated. Coexistence of the two spider species may depend in part upon the usual occurrence of high mortality during the immature stages. Invasion of webs by araneids is reported as possible competitive interference. The two largest species of European araneids also show vertical stratification only as immatures. However, the niches of most Polish Araneus species in fields seem differentiated by parameters related to prey size: season of breeding and size differences between species.
Online Robust and Adaptive Learning from Data Streams

In online learning from non-stationary data streams, it is both necessary to learn robustly to outliers and to adapt to changes of underlying data generating mechanism quickly. In this paper, we refer to the former nature of online learning algorithms as robustness and the latter as adaptivity. There is an obvious tradeoff between them. It is a fundamental issue to quantify and evaluate the tradeoff because it provides important information on the data generating mechanism. However, no previous work has considered the tradeoff quantitatively. We propose a novel algorithm called the Stochastic approximation-based Robustness-Adaptivity algorithm (SRA) to evaluate the tradeoff. The key idea of SRA is to update parameters of distribution or sufficient statistics with the biased stochastic approximation scheme, while dropping data points with large values of the stochastic update. We address the relation between two parameters, one of which is the step size of the stochastic approximation, and the other is the threshold parameter of the norm of the stochastic update. The former controls the adaptivity and the latter does the robustness. We give a theoretical analysis for the non-asymptotic convergence of SRA in the presence of outliers, which depends on both the step size and the threshold parameter. Since SRA is formulated on the majorization-minimization principle, it is a general algorithm including many algorithms, such as the online EM algorithm and stochastic gradient descent. Empirical experiments for both synthetic and real datasets demonstrated that SRA was superior to previous methods.
Supervised exercise training improves endothelial function in COPD patients: a method to reduce cardiovascular risk?

Chronic obstructive pulmonary disease (COPD) is associated with an increased risk of cardiovascular diseases, particularly coronary artery disease (CAD) [1]. Endothelial dysfunction is a marker of cardiovascular risk [2]; a validated and standardised method to assess endothelial function is flow-mediated dilation (FMD) [3]. Supervised exercise training is key to health improvement in chronic obstructive pulmonary disease patients https://bit.ly/2AdfKvb
A Descriptive Study

It has been estimated that women involved in street prostitution are 60 to 100 times more likely to be murdered than are nonprostitute females. In addition, homicides of prostitutes are notoriously difficult to investigate and, as such, many cases remain unsolved. Despite this large risk factor, little literature exists on homicides of prostitutes, and there is a lack of basic statistics and knowledge regarding this very specific victim group that could possibly help investigators. The aim of the current study is to conduct an exploratory study to explore the key characteristics of this group and how they differ from other subgroups of homicide. Forty-six cases of U.K. prostitute homicides are analyzed and compared to 59 male offender–female victim nonsexual homicide cases and 17 male offender–female victim sexual homicide cases.
Product Matrix Processes With Symplectic and Orthogonal Invariance via Symmetric Functions

We apply symmetric function theory to study random processes formed by singular values of products of truncations of Haar distributed symplectic and orthogonal matrices. These product matrix processes are degenerations of Macdonald processes introduced by Borodin and Corwin. Through this connection, we obtain explicit formulae for the distribution of singular values of a deterministic matrix multiplied by a truncated Haar orthogonal or symplectic matrix under conditions where the latter factor acts as a rank $1$ perturbation. Consequently, we generalize the recent Kieburg-Kuijlaars-Stivigny formula for the joint singular value density of a product of truncated unitary matrices to symplectic and orthogonal symmetry classes. Specializing to products of two symplectic matrices with a rank $1$ perturbative factor, we show that the squared singular values form a Pfaffian point process.
The Excitation Conditions of CN in TW Hya

We report observations of the cyanide anion, CN, in the disk around TW Hya covering the N = 1−0, N = 2−1, and N = 3−2 transitions. Using line-stacking techniques, 24 hyperfine transitions are detected out of the 30 within the observed frequency ranges. Exploiting the super-spectral resolution from the line-stacking method reveals the splitting of hyperfine components previously unresolved by laboratory spectroscopy. All transitions display a similar emission morphology, characterized by an azimuthally symmetric ring, peaking at ≈45 au (0.″75), and a diffuse outer tail extending out to the disk edge at ≈200 au. Excitation analyses assuming local thermodynamic equilibrium (LTE) yield excitation temperatures in excess of the derived kinetic temperatures based on the local line widths for all fine-structure groups, suggesting assumptions of LTE are invalid. Using the 0D radiative transfer code RADEX, we demonstrate that such non-LTE effects may be present when the local H2 density drops to 107 cm−3 and below. Comparison with models of TW Hya find similar densities at elevated regions in the disk, typically z / r ≳ 0.2, consistent with model predictions where CN is formed via vibrationally excited H2 in the disk atmospheric layers where UV irradiation is less attenuated.
High-Flow Nasal Cannula versus Noninvasive Positive Pressure Ventilation in Patients with Heart Failure after Extubation: An Observational Cohort Study

Noninvasive positive pressure ventilation (NPPV) has been widely applied in patients with high-risk extubation failure, including heart failure. High-flow nasal cannula (HFNC) has been demonstrated to benefit patients with heart failure by reducing cardiac preload. This study aimed to compare the effectiveness of HFNC to NPPV for preventing extubation failure in patients with heart failure. This 3-year retrospective and single-center cohort study included patients with heart failure with left ventricular ejection fraction <50% who received prophylactic HFNC or NPPV after scheduled extubation from January 2015 to January 2018 from a medical center with four adult intensive care units. Demographics, comorbidities, diagnosis, and weaning status were collected. The primary outcome was treatment failure within 72 hours after extubation, which was defined as escalation to NPPV or reintubation in the HFNC group and was defined as requiring reintubation in the NPPV group. Secondary outcomes were reintubation within 72 hours, reintubation, duration of stay, and mortality during the intensive care unit and hospital stay. Of the 104 patients analyzed, characteristics of 58 patients in the HFNC group and 46 patients in the NPPV group were compared. The treatment failure within 72 hours in the two groups was not significantly different (25.9% vs 13%, p=0.106). Hypoxemic respiratory failure related treatment failure was significantly higher in the HFNC group. Prophylactic HFNC as first-line therapy had a comparable rate of reintubation within 72 hours to the prophylactic NPPV alone (17.2% vs 13%, p=0.556). Other secondary outcomes were similar between the two groups. Among patients with heart failure, HFNC was not inferior to NPPV for preventing extubation failure and reintubation. However, in case of an impending respiratory failure, selective patients may benefit from rescue NPPV.