Miracle-dz/UniFAR-FTUs huggingface dataset:
Exploring Treatment Response Predictors of a Parent-Led Therapist-Assisted Treatment for Childhood Trauma

Purpose: While stepped care trauma-focused cognitive behavioral therapy (SC-TF-CBT) is an effective service delivery model, understanding predictors of Step One, a parent-led therapist-assisted treatment, will help inform how to best match children at baseline to treatments. Method: Potential predictor variables were explored from 63 parent–child Step One participants with 43 responders and 20 non-responders. Baseline tailoring variables explored were anticipated critical life events, demographics, trauma-related variables, and child and parent outcomes. Results: Predictors of Step One non-response were parental depression, child anger outbursts and Hispanic/Latino parents even after controlling for child demographics, child post-traumatic stress, severity, and impairment. Conclusions: Parents with depression and children with high anger outbursts should consider starting with Step Two, therapist-led TF-CBT. Step One may benefit from including TF-CBT culturally modified strategies for Hispanic/Latino parents. If preference is to start with Step One, these parents and children should be closely monitored for treatment progress.
Fractal characterization by frequency analysis: III. Effect of noise

The effect of noise in the fractal characterization by frequency analysis of surface images obtained by scanning tunnelling microscopy (STM), atomic force microscopy (AFM) or profilometry has been studied. The origin of noise and its relationship to the signal is discussed. A procedure to simulate noisy images is presented. From the study it is concluded that the method usually used to characterize noise in STM is not valid and it is shown that fractal characterization of surfaces when noise is present by traditional frequency analysis methods is not possible. A new method to perform both the noise characterization and the fractal characterization of surfaces when noise is present is proposed.
Role of Serum Amyloid A as a Biomarker for Predicting the Severity and Prognosis of COVID-19

Objective To detect biomarkers that can be used to predict COVID-19 severity to identify patients with high probability of disease progression and poor prognosis. Methods Of the 102 patients with confirmed COVID-19 who were admitted to King Fahd General Hospital, Jeddah City, Saudi Arabia, from July 1, 2021 to August 5, 2021, 50 were included in this cross-sectional study to investigate the influence of serum amyloid A (SAA) on disease severity and survival outcomes of COVID-19 patients. Dynamic shifts in SAA, C-reactive protein (CRP), white blood cell (WBC), lymphocytes, neutrophils, biochemical markers, and disease progression were examined. At admission, and at three, five, and seven days after treatment, at least four data samples were collected from all patients, and they underwent clinical status assessments. Results Critically ill patients showed higher SAA and CRP levels and WBC and neutrophil counts and significantly lower lymphocyte and eosinophil counts compared to the moderately/severely ill patients, especially with regard to disease progression. Similarly, nonsurvivors had higher SAA levels than survivors. The moderately/severely ill patients and the survivors had significantly higher dynamic changes in SAA compared to the critically ill patients and nonsurvivors, respectively, with differences clearly noticed on the fifth and seventh day of treatment. ROC curve analysis revealed that the combination of SAA and CRP was valuable in evaluating the disease progression and prognosis of COVID-19 patients at different time points; however, a combination of SAA and lymphocyte counts was more sensitive for disease severity prediction on admission. The most sensitive parameters for predicting survival on admission were the combination of SAA/WBC and SAA/neutrophil count. Conclusions The study findings indicate that SAA can be used as a sensitive indicator to assess the degree of disease severity and survival outcomes of COVID-19 patients.
MAGNETIC FIELDS IN INTERSTELLAR CLOUDS FROM ZEEMAN OBSERVATIONS: INFERENCE OF TOTAL FIELD STRENGTHS BY BAYESIAN ANALYSIS

The only direct measurements of interstellar magnetic field strengths depend on the Zeeman effect, which samples the line-of-sight component Bz of the magnetic vector. In this paper, we use a Bayesian approach to analyze the observed probability density function (PDF) of Bz from Zeeman surveys of H i, OH, and CN spectral lines in order to infer a density-dependent stochastic model of the total field strength B in diffuse and molecular clouds. We find that at n < 300 cm−3 (in the diffuse interstellar medium sampled by H i lines), B does not scale with density. This suggests that diffuse clouds are assembled by flows along magnetic field lines, which would increase the density but not the magnetic field strength. We further find strong evidence for B in molecular clouds being randomly distributed between very small values and a maximum that scales with volume density n as B ∝ n0.65 for n>300 cm−3, with an uncertainty at the 50% level in the power-law exponent of about ±0.05. This break-point density could be interpreted as the average density at which parsec-scale clouds become self-gravitating. Both the uniform PDF of total field strengths and the scaling with density suggest that magnetic fields in molecular clouds are often too weak to dominate the star formation process. The stochasticity of the total field strength B implies that many fields are so weak that the mass/flux ratio in many clouds must be significantly supercritical. A two-thirds power law comes from isotropic contraction of gas too weakly magnetized for the magnetic field to affect the morphology of the collapse. On the other hand, our study does not rule out some clouds having strong magnetic fields with critical mass/flux ratios.
The nature of plasma fluxes to surfaces nearly tangential to the magnetic field

Plasma fluxes to edge structures, such as limiters, probes and divertor plates, are generally assumed to be due to parallel transport only-and all limiters and divertors have been designed on the basis of this standard model. A number of experimental results have indicated substantial fluxes to surfaces which are parallel, or nearly parallel to B-a result which is inconsistent with the standard model. A new model is presented which includes direct cross-field deposition on edge structures. In the case of limiters and probes this direct deposition process is amplified by a 2D or 3D concentration, or funnelling, effect which is induced in the confined plasma, inboard of the edge structure. As a result, the plasma wetted area of large edge structures such as inner wall limiters is substantially greater than indicated by the standard model-a generally beneficial effect. For sufficiently oblique angles between B and divertor tiles, it may be that heat and particle transport to the tiles is dominated by direct, cross-field transport. This would have major implications for the exploitation of divertor configurations with very large flux expansion and large wetted area
Koszul pairs and applications

Let $R$ be a semisimple ring. A pair $(A,C)$ is called almost-Koszul if $A$ is a connected graded $R$-ring and $C$ is a compatible connected graded $R$-coring. To an almost-Koszul pair one associates three chain complexes and three cochain complexes such that one of them is exact if and only if the others are so. In this situation $(A,C)$ is said to be Koszul. One proves that a connected $R$-ring $A$ is Koszul if and only if there is a connected $R$-coring $C$ such that $(A,C)$ is Koszul. This result allows us to investigate the Hochschild (co)homology of Koszul rings. We apply our method to show that the twisted tensor product of two Koszul rings is Koszul. More examples and applications of Koszul pairs, including a generalization of Fr\"oberg Theorem, are discussed in the last part of the paper.
Aspects of electron-phonon self-energy revealed from angle-resolved photoemission spectroscopy

Lattice contribution to the electronic self-energy in complex correlated oxides is a fascinating subject that has lately stimulated lively discussions. Expectations of electron-phonon self-energy effects for simpler materials, such as Pd and Al, have resulted in several misconceptions in strongly correlated oxides. Here we analyze a number of arguments claiming that phonons cannot be the origin of certain self-energy effects seen in high-$T_c$ cuprate superconductors via angle resolved photoemission experiments (ARPES), including the temperature dependence, doping dependence of the renormalization effects, the inter-band scattering in the bilayer systems, and impurity substitution. We show that in light of experimental evidences and detailed simulations, these arguments are not well founded.
New Polynomial Shortest Path Algorithms and Their Computational Attributes

This paper presents six new variants of the polynomially bounded Partitioning Shortest Path (PSP) algorithm for finding the shortest path from one node to all other nodes in a network. Three of these variants, one for negative arc lengths, but without negative cycles, and two for nonnegative arc lengths, augment the PSP algorithm to maintain a property called sharp by Shier and Witzgall. The other three variants augment the PSP algorithm to maintain a property called near-sharp for nonnegative arc lengths. Extensive computational testing is presented on one of the sharp variants for nonnegative arc lengths and two of the near-sharp variants. The empirical results based on 4500 test problems with 90 different configurations and three different network topologies indicate that these new algorithms have excellent computational performance characteristics. Based on total solution times for the 4500 test problems, these new algorithms out-perform all other algorithms tested. In addition, one of the near-sharp .
Symmetric exclusion as a random environment: Invariance principle

We establish an invariance principle for a one-dimensional random walk in a dynamical random environment given by a speed-change exclusion process. The jump probabilities of the walk depend on the configuration of the exclusion in a finite box around the walker. The environment starts from equilibrium. After a suitable space-time rescaling, the random walk converges to a sum of two independent processes, a Brownian motion and a Gaussian process with stationary increments.
A period study of AM Leonis

The period variation of a W-type contact binary AM Leo is studied. It was shown mostly by our own data that (i) the orbital period of the system oscillates with a period of about 33 yr and an amplitude of about 0.008 day, and (ii) the secondary minima occur always (in the last 35 yr) slightly (∼1 min) earlier than expected. The latter point is explained in terms of a large persistent dark region on the leading hemisphere close to the neck region of the cooler primary component. Existence of such dark region is in agreement with observed O'Connell effect as fainter secondary maxima of the system. The period oscillation is critically studied in terms of the (i) mass transfer, (ii) third body, (iii) magnetic activity, and (iv) internal motions
Dynamics at infinity of regular discrete subgroups of isometries of higher rank symmetric spaces

We study the dynamics of asymptotically regular discrete isometry groups $\Gamma\subset G$ on the ideal boundary of higher rank symmetric spaces of noncompact type X=G/K. We identify geometrically domains of discontinuity in all (partial) flag manifolds G/P associated to G. Under the additional assumption of chamber conicality - a natural generalization of conicality of the limit set for Kleinian groups in rank one - and antipodality, we establish cocompactness of the $\Gamma$-action on various domains of discontinuity, in particular for domains in the full flag manifold G/B. The latter are nonempty at least for all irreducible Weyl groups different from B_2 and G_2. We also compare in higher rank several notions related to classical geometric finiteness.
Quasi-exactly Solvable Cases of the N-Dimensional Symmetric Quartic Anharmonic Oscillator

The O(N) invariant quartic anharmonic oscillator is shown to be exactly solvable if the interaction parameter satisfies special conditions. The problem is directly related to that of a quantum double well anharmonic oscillator in an external field. A finite dimensional matrix equation for the problem is constructed explicitly, along with analytical expressions for some excited states in the system. The corresponding Niven equations for determining the polynomial solutions for the problem are given.
The influence of the horizontal component of Earth's angular velocity on the instability of the Ekman layer

A systematic study is made of the effect of latitude on the linear, normal mode stability characteristics of the laminar barotropic Ekman layer. The outcome depends upon the direction of the geostrophic flow (in the case of flows modelling the atmospheric Ekman layer) or, alternatively, upon the direction of the applied stress (in the case of flows modelling the oceanic Ekman layer). The minimum critical Reynolds number Rc is a function of latitude. For the atmospheric Ekman layer Rc = 30.8 for all latitudes less than 26.2° and increases monotonically with latitude to 54.2. At a latitude of 45° N, Rc is 33.9 and arises for a geostrophic wind directed towards a compass heading 252° (clockwise from north), corresponding to rolls with axes pointing due west and having wavenumber k (with unit of length taken to be the Ekman layer depth) of 0.594. The minimum Rc for the oceanic boundary layer is 11.6 for latitudes less than 81.1°, and increases with latitude to 11.8. At 45° N latitude, the critical condition arises for a surface-current compass heading of 345.2°, roll axis of 351° and a wavenumber k = 0.33. The results for Rc are all symmetric about the equator, with roll axes and associated basic flow directions rotated by 180°. As the Reynolds number R increases, the effects of the perturbation Coriolis acceleration on the instability diminish, as has been previously shown, and the error caused by neglect of the horizontal component of angular velocity therefore decreases. The high Reynolds number limit is systematically explored. It is shown that the lower branch of the neutral curve is not inviscid as R → ∞; rather kR → constant. The upper branch is inviscid in the limit R → ∞, and corresponds to a regular or singular neutral mode depending on whether the angle ε between the outer geostrophic flow and the roll axis is greater or less than 15.93°. ‘Inflectional’ modes, thought to be relevant by some investigators, do not exist for ε < 15.93°. Lastly, the most unstable inviscid mode corresponding to zero phase speed, a condition to which certain well-known experiments are sensitive, occurs at ε = 11.8° with wavenumber k = 0.6. This is in good agreement with published experimental data.
The Aspect Ratio Effect on Natural Convection in an Enclosure With Protruding Heat Sources

The aspect ratio effect on natural convection heat transfer in a rectangular enclosure with protruding heat sources has been experimentally investigated. Five protruding heaters were mounted with uniform vertical spacing on one vertical wall. The vertical wall opposite to the wall on which heated sections were mounted was movable so that the enclosure width could be adjusted to the desired values. The top surface of the test enclosure was an isothermal heat sink. All other surfaces except the two end vertical surfaces were insulated. The five heaters were identical with each having horizontal protuberance of L{sub 3} = 9 mm and vertical height of L{sub 1} = 15 mm. The vertical spacing between the heaters was L{sub 2} = 15 mm. The enclosure width was varied in experiments from W = 13.5 mm to 45 mm. The experiments were conducted for six values of cavity width resulting in variations in the cavity height-to-width ratios (aspect ratios) and cavity width-to-protruding heater height ratios of 3.67 to 12.22 and 1.5 to 5.0, respectively. Ethylene glycol was used as the convective medium. Flow visualization pictures and heat transfer data indicate that the starting point of core flow directly affects the local heat transfermore » coefficient of the bottom heater, while the secondary flow cell between the top heated section and the top sink surface influences the heat transfer coefficient of the top heater. The correlation of local Nusselt number versus local modified Rayleigh number is independent of the number of heaters in the vertical array, cavity width-to-heater protrusion height ratio, W/L{sub 3}, and vertical height location of the heaters. « less
SOME LEARNING MODELS FOR ARITHMETIC TASKS AND THEIR USE IN COMPUTER BASED LEARNING

Summary. There are many advantages in having the computer individualise instruction by generating teaching material when it is needed, at a level which suits a pupil's particular competence. This requires valid models of task difficulty, and this paper describes such models and the experiments to validate them, for practice tasks in arithmetic computation. Using criteria of probability of success and rate of working for each column of an addition task in vertical format, analyses of variance of experimental data reveal main effects of digit size and number of rows. Following a formal development of the model a least squares analysis derives a function which, for the experimental data, relates those variables to the criteria. These are used by the computer to generate examples so that a pupil works at any specified level of success. Methods of implementation and decision making together with some preliminary results are given. These are extended by describing an experiment with subtraction tasks in which two competing models were used to describe pupils' success and working levels. These analyses and experiments show the complexity of the decision making which is needed for adaptive teaching and which exploit the computer's capabilities.
On the growth of nanocrystalline grains in an aluminum-based amorphous alloy

We have identified a growth process of nanocrystalline grains in amorphous Al87Ni10Ce3 by means of differential scanning calorimetry and transmission electron microscopy. The grain size of the final grown Al was estimated to be ∼15 nm. A typical nucleation‐growth process was observed during the transformation in an amorphous Al85Ni10Ce5. The grain growth process was only observed in Al‐enriched alloys (Al ≳ 87 at. %), indicating that the nuclei pre‐existed in an Al‐enriched area in the original amorphous state.
Bacteriophage Cocktails in the Post-COVID Rehabilitation

Increasing evidence suggests that gut dysbiosis is associated with coronavirus disease 2019 (COVID-19) infection and may persist long after disease resolution. The excessive use of antimicrobials in patients with COVID-19 can lead to additional destruction of the microbiota, as well as to the growth and spread of antimicrobial resistance. The problem of bacterial resistance to antibiotics encourages the search for alternative methods of limiting bacterial growth and restoring the normal balance of the microbiota in the human body. Bacteriophages are promising candidates as potential regulators of the microbiota. In the present study, two complex phage cocktails targeting multiple bacterial species were used in the rehabilitation of thirty patients after COVID-19, and the effectiveness of the bacteriophages against the clinical strain of Klebsiella pneumoniae was evaluated for the first time using real-time visualization on a 3D Cell Explorer microscope. Application of phage cocktails for two weeks showed safety and the absence of adverse effects. An almost threefold statistically significant decrease in the anaerobic imbalance ratio, together with an erythrocyte sedimentation rate (ESR), was detected. This work will serve as a starting point for a broader and more detailed study of the use of phages and their effects on the microbiome.
Exoelectron measurement apparatus incorporated in a scanning electron microscope

An apparatus and experimental techniques have been developed for use in nondestructive testing and for studying the characteristics of exoelectron emission phenomena. The apparatus incorporated in a scanning electron microscope has the unique capability of providing several; measurements: microscopic fresh surface damage by detection of local photostimulated exoelectron emission (PSEE) and secondary electron emission, triboemission during friction, monitoring the fatigue process by use of PSEE and electron emission from the surface damaged by electron irradiation. Some results are presented which demonstrate the capability of the apparatus. The effect of surface roughness on the PSEE intensity is also presented.
Spin glass dynamics in the spherical model

A phenomenological Langevin-like equation for spin glass dynamics is proposed and solved. The equation reproduces the static spherical model results for spin glass in the long time limit. The magnetisation, order parameter and on-site correlations are found to decay exponentially above the transition temperature and algebraically at and below it, as t to infinity . A closed-form expression for the dynamic susceptibility valid at all temperatures is also obtained.
Mobility of Electrons and Holes in PbS, PbSe, and PbTe between Room Temperature and 4.2°K

Hall coefficient and resistivity measurements have been made on 29 single crystals (mostly synthetic) of PbS, PbSe, and PbTe between room temperature and 4.2\ifmmode^\circ\else\textdegree\fi{}K. Almost all of the samples had extrinsic carrier concentrations of the order of ${10}^{18}$ per ${\mathrm{cm}}^{3}$, as deduced from the Hall coefficients which were essentially constant over the entire temperature range investigated. Hall mobilities were calculated from the Hall and resistivity data, and were found to increase rapidly with decreasing temperature. Between room temperature and about 50\ifmmode^\circ\else\textdegree\fi{}K the mobility behavior was essentially intrinsic and varied approximately as ${T}^{\ensuremath{-}2.2}$. Below 50\ifmmode^\circ\else\textdegree\fi{}K the mobility curves turned gradually toward the horizontal in a manner resembling the residual resistance phenomenon observed in metals. Values as high as 800 000 ${\mathrm{cm}}^{2}$/v-sec were attained at 4.2\ifmmode^\circ\else\textdegree\fi{}K despite the large carrier concentrations present in all the samples. A simple experiment was performed which suggests that dislocations are the principal scattering mechanism below 50\ifmmode^\circ\else\textdegree\fi{}K, rather than the charged point defects associated with the extrinsic carriers. The possibility that a high static dielectric constant could explain the large mobilities at low temperatures is discussed.
Systematic correlation between Raman spectra, photoluminescence intensity, and absorption coefficient of silica layerscontaining Si nanocrystals

The correlation between optical, structural, and light-emitting properties of annealed Si-rich silica samples containing different amounts of Si nanocrystals is studied. The intensity of the 1.6eV emission band weakens when the Raman signal coming from the Si nanocrystals gets stronger. On the contrary, the absorption coefficient follows the increase of the Raman intensity with the Si nanocrystal density. The decrease of the photoluminescence is accompanied with the increase of tensile stress, which is suggested by the Raman spectra. Possible explanations of the observed dependencies are discussed.