Miracle-dz/UniFAR-FTUs huggingface dataset:
Asymptotic evaluation of closed queueing networks with many stations

Asymptotic formulas are derived for the partition function of multichain closed product form networks with groups of stations, each group consisting of many identical stations. The derivation of the asymptotic expansion is based on an integral representation of the partition function in a multidimensional complex space and its evaluation using the saddle point method. The saddle point method is also used to derive an iterative algorithm which reduces the problem of solving the multichain network to a set of single chain problems. The accuracy of the approximations is evaluated in two case studies: a memory interference model in a multiprocessing system and a model of a multiprogramming system.
Effect of different types and levels of fat addition and pellet binders on physical pellet quality of broiler feeds

ABSTRACT Two experiments were conducted to evaluate the effects of different types and levels of mixer-added fat (soybean oil: SO and calcium fat powder: CFP) and pellet binders (PBs: calcium lignosulfonate (CaLS) and bentonite (Ben)) on physical pellet quality (PPQ) parameters. PPQ included pellet durability index (PDI), pellet hardness, and pellet length of broiler diets processed under short-term conditioning. The first experiment had 4 treatments arranged as a 2 × 2 factorial with 2 types (SO and CFP) and 2 levels (1.5 and 3%) of mixer-added fat. In the second experiment, 22 treatments, combinations of 2 types of mixer-added fat (SO and CFP) at 3 levels (0, 1.5 and 3%) and 2 types of PB (CaLS = 0, 0.5, and 1% and Ben = 0, 1, and 2%), were arranged by a completely randomized design. PDI was measured by 2 devices: Pfost Tumbling box (PDIT) and Holmen NHP tester (PDIH). The results showed that the diets containing 1.5% CFP without PB had significant differences in all PPQ parameters. The results revealed that adding 0.5% CaLS to the 3% SO diets significantly enhanced PDIH, pellet hardness, and pellet length compared to other treatments. Moreover, 1.5% CFP diets with 2% Ben had significantly higher PDIT, PDIH, and pellet hardness among the treatments. Based on contour plots, different levels of Ben in the diets containing SO failed to create optimum PDIT values (>96%). However, 1.5 to 2.50% CFP diets without Ben had the optimum PDIT values. The optimum PDIT value was achieved by the diets containing 3% SO in the range of 0.21 to 0.56% CaLS. Furthermore, adding 0.5% CaLS to the diets containing less than 2.86% SO resulted in suboptimal PDIT values (<96%). The diets containing 1.5 to 2.50% CFP without CaLS had the optimum PDIT values. However, increasing CaLS levels more than 0.38% led to suboptimal PDIT values. Overall, these results indicated that the selection of appropriate PBs should be based on type and level of mixer-added fat.
How Well Can We Infer the Properties of the Solar Acoustic Sources?

Measurements of the p-mode line asymmetry in the solar oscillation velocity power spectrum have been used on several occasions to infer the properties of the acoustic sources. These inferences are based on the assumption that, unlike the observed intensity signal, the velocity signal does not contain a nonresonant (background) component that is correlated with the p-mode signal. Line asymmetry measurements have also been used to draw inferences on the nature of the correlated background signal that is present in intensity observations. By simultaneously modeling the observed velocity and intensity power spectra and the intensity-velocity cross spectrum, we enforce strict observational constraints on the properties of the fitting model. We find that in order to accurately describe the observed data, we have to include a correlated background component in both our models for the V and I signals at low frequencies. Our results also show that we cannot uniquely determine the acoustic source depth for low-frequency waves or the detailed properties of the correlated background signals. It appears that further physical and/or observational constraints are needed before we can obtain this information.
Convective Elements in the Marine Atmospheric Boundary Layer. Part I: Conditional Sampling Statistics

Abstract The properties of updrafts and downdrafts through the entire depth of the marine atmospheric boundary layer are investigated using conditional sampling based on an indicator function derived from the vertical velocity time series. Statistics on event size, number density and area occupied are obtained, along with conditional averages of the meteorological variables and percent contributions to the fluxes by updrafts, downdrafts and the environment. A single profile is obtained for convective mass flux based on conditional averaging of updrafts and downdrafts applicable to the fluxes of latent and sensible heat and momentum.
Ultraviolet to near infrared response of optically sensitive nonvolatile memories based on platinum nano-particles and high-k dielectrics on a silicon on insulator substrate

An optically triggered nonvolatile memory based on platinum nano-particles embedded within a SiO2 and HfO2 dielectric stack on a silicon on insulator (SOI) substrate is presented. The memory cell exhibits a very wide spectral response, from 220 nm to 950 nm; much wider than common photo-detectors fabricated on SOI. It offers several functionalities including a low programming voltage and wide hysteresis of the capacitance-voltage characteristics, an illumination and voltage sweep amplitude dependent hysteresis of the current-voltage characteristics, and plasmonic enhanced, efficient broad-band photo detection.
Do Outcomes or Subsequent Injuries Differ After Ulnar Collateral Ligament Reconstruction With Palmaris Versus Hamstring Autograft?

Background: Ulnar collateral ligament reconstruction (UCLR) is a successful procedure in professional baseball players. It is unclear whether graft choice affects results. Purpose: Determine performance and rate of return to sport (RTS) in professional baseball players after UCLR and compare performance and RTS rate, as well as injury rates, between players who underwent UCLR with hamstring versus palmaris autograft. Hypothesis: A high RTS rate exists in professional baseball players after UCLR, with no significant difference in injury rates, RTS rates, or performance specifically related to primary outcome performance variables—WHIP ([walks + hits]/innings pitched), fielding independent pitching (FIP), and wins above replacement (WAR)—between those who undergo UCLR with palmaris versus hamstring autograft. Study Design: Cohort study; Level of evidence, 3. Methods: All professional baseball players who underwent UCLR with hamstring autograft between 2010 and 2015 were included. Surgical details were gathered from operative reports. Players with hamstring UCLR were compared with a matched control group of players who underwent UCLR with palmaris autograft. Results: Overall, 195 players underwent UCLR with hamstring autograft. No differences in RTS rates or timing to RTS were found between the hamstring and palmaris groups. Significantly more subsequent injuries to the contralateral lower extremity were seen in the hamstring group versus the palmaris group (25 vs 13, respectively) (P = .040). More subsequent injuries to the upper extremity were found in the palmaris group versus the hamstring group (73 vs 55, respectively), although this difference was not significant (P = .052). No consistent differences in performance metrics upon RTS existed between hamstring and palmaris groups, although both groups significantly declined in many performance metrics after surgery. Both hamstring and palmaris groups showed a decline postoperatively in WAR (0.86 vs 0.35 and 1.23 vs 0.34, respectively) and WHIP (1.33 vs 1.44 and 1.36 vs 1.51, respectively); FIP did not decline (4.56 vs 5.27 and 4.51 vs 4.53, respectively). No significant difference in WAR, WHIP, or FIP existed between groups postoperatively. Conclusion: Baseball players who underwent UCLR with hamstring autograft were more likely to sustain a subsequent lower extremity injury, whereas those who underwent UCLR with palmaris autograft had a trend toward sustaining more upper extremity injuries. No difference in performance or RTS rates existed between groups. Both groups significantly declined in WAR and WHIP after UCLR.
Upwind Scheme for Acoustic Disturbances Generated by Low-Speed Flows

Computation of acoustic disturbances generated by unsteady, low-speed flows, such as flows including vortices and shear layers, can be obtained by a recently proposed two-step method. This method requires a hydrodynamic field solution and obtains the acoustic field from the perturbed, inviscid, compressible flow equations. A numerical method for the solution of the equations governing the acoustic field is presented. The primitive variable form of the governing equations is used for the numerical solution. Time integration is performed with a fourth-order, Runge-Kutta method. Discretization of the primitive variables space derivatives is obtained with a high-order, upwind-biased numerical scheme. Upwinding of these convective fluxes is performed according to the eigenvalue sign of the coefficient matrices. Nonreflecting boundary conditions are applied to properly convect outgoing waves away from the computational domain. Solutions are obtained for the acoustic field generated by a pair of corotating point vortices. Computed results are compared with the existing analytic solution for the sound field.
Finite Time Blow Up and Stability of a Semilinear Equation with a Time Dependent Lévy Generator

We give sufficient conditions for finite time blow up and for existence of global non-negative mild solutions to semilinear equations of the form ∂u(t, x)/∂t = L(t) u(t, x) + γu β(t, x), t > s ≥ 0, u(s, x) = ϕ(x), x ∈ ℝ d , where γ > 0 and β > 1 are constants, ϕ ≥ 0 is bounded and measurable, and L(t) is the generator of a Lévy process in ℝ d , t ≥ 0. We apply our results to equations with operators of the form L(t) = k(t) Δα and L(t) = 2−1∑ i, j = 1 d k ij (t) ∂2/∂x i ∂x j , where Δα is the generator of the symmetric α-stable process, and k, k ij ≥ 0, 1 ≤ i, j ≤ d, are continuous functions.
A decentralized control system for cooperative transportation by multiple non-holonomic mobile robots

In this paper, we propose a decentralized control system for transporting a single object by multiple non-holonomic mobile robots. Each agent used in the proposed system has two arms, which can steer around a joint offset from the centre point between two driving wheels. One of these mobile robots acts as a leader, who is assumed to be able to plan and to manipulate the omnidirectional motion of the object by using a resolved velocity control. Other robots, referred to as followers, cooperatively transport the object by keeping a constant relative position with the object using a simple PI control. Different from conventional leader–follower type systems that transport an object by multiple robots in coordination, the present followers can plan an action based on their local coordinate and need no absolute positional information. In addition, as a special case, a system consisting of only two robots is introduced, in which the follower robot not only has an arm length controller to follow the leader but also has a fuzzy controller as an avoidance controller to avoid obstacles or a posture controller to keep a desired posture of the object. Simulation results are given to demonstrate the good performance of the proposed systems.
A Monte Carlo Comparison of the Regression Method and the Spectral Methods of Prediction

Abstract We consider the question of estimating the linear, least-squares predictor of the future values of a real-valued, discrete, purely nondeterministic, stationary time series from its known past. A method of estimating the prediction coefficients from the usual ‘windowed’ estimates of spectral density function is put forward and a Monte Carlo comparison of this method with the more usual regression method of finding the best fitting autoregressive process by recursively solving the Yule-Walker equations is carried out.
Mode coupling of the two‐plasmon decay instability to ion‐acoustic waves and the effect on (3/2)‐harmonic emission

The mechanism in which two‐plasmon decay (TPD) waves have to propagate in the density gradient of a laser‐irradiated plasma in order to scatter (3/2)‐harmonic photons is shown not to be able to explain most features of observed (3/2)ω0 spectra. Instead, a process of mode coupling of TPD to ion waves, generated by stimulated Brillouin scattering, is proposed and analyzed. It is shown that all significant features of measured (3/2)ω0 spectra can be explained by this model. One important result indicates that these spectra can provide a good thermometer for laser‐irradiated plasmas with a quarter‐critical density.
Human Fcγ receptors compete for TGN1412 binding that determines the antibody's effector function

The first‐in‐human clinical trial of the CD28‐specific monoclonal antibody (mAb) TGN1412 resulted in a life‐threatening cytokine release syndrome. Although TGN1412 was designed as IgG4, known for weak Fc:Fcγ receptor (FcγR) interactions, these interactions contributed to TGN1412‐induced T‐cell activation. Using cell lines (TFs) expressing human FcγRI, ‐IIa, ‐IIb, or ‐III, we show that TGN1412 and TGN1412 as IgG1 and IgG2 are bound by FcγRs as it can be deduced from literature. However, upon coculture of TGN1412‐decorated T cells with TFs or human primary blood cells, we observed that binding capacities by FcγRs do not correlate with the strength of the mediated effector function. FcγRIIa and FcγRIIb, showing no or very minor binding to TGN1412, mediated strongest T cell proliferation, while high‐affinity FcγRI, exhibiting strong TGN1412 binding, mediated hardly any T‐cell proliferation. These findings are of biological relevance because we show that FcγRI binds TGN1412, thus prevents binding to FcγRIIa or FcγRIIb, and consequently disables T‐cell proliferation. In line with this, FcγRI−FcγRII+ but not FcγRI+FcγRII+ monocytes mediate TGN1412‐induced T‐cell proliferation. Collectively, by using TGN1412 as example, our results indicate that binding of monomeric IgG subclasses does not predict the FcγR‐mediated effector function, which has major implications for the design of therapeutic mAbs.
Numerical Simulation of Cellular Structure of Weak Detonation and Evaluation of Linear Stability Analysis Predictions

Abstract This paper investigates the development of cellular structures created by the propagation of a detonation wave in a gaseous mixture. Two dimensional reactive Euler equations with an idealized one-step Arrhenius type reaction model are solved using the PPM scheme coupled with the exact Riemann solver. The numerical flow solver simulates the evolution process of regular cellular structures of a weakly unstable detonation wave. The cellular structures are generated by two-dimensional sinusoidal perturbations imposed on a ZND detonation wave. The initial sinusoidal perturbation wavelengths are predicted from linear stability analysis. The objective of these calculations is to examine the validity of the linear stability analysis predictions on the final cell sizes of a weakly unstable detonation. We found that for a given mixture, there is not just a single detonation cell size related to the wavelength with maximum growth rate. Instead, depending on the initial perturbation wavelength, the cellular dynamics reaches a final equilibrium state with the corresponding final cell size that belongs to a specific band of unstable wavelengths predicted by the linear stability analysis. Indeed, it is not the magnitude of the perturbation growth rate, but the magnitude of its rate of change with respect to the wavelength that predicts the domain of this specific band and corresponding final cell sizes.
Distraction and reappraisal efficiency on immediate negative emotional responses: role of trait anxiety

ABSTRACT Background and Objectives: Emotion regulation involves attempts to influence emotion unfolding and may target experiential, expressive and physiological responses. Several strategies can be used, such as reappraisal (re-evaluating the emotional situation to reduce its emotional meaning) or distraction (turning the attention toward non-emotional aspects of the situation). Previous research on these regulation strategies produced contrasting results regarding their efficiency and we hypothesize that this could be due to individual differences such as trait anxiety. Design and Methods: Participants (N = 77) were confronted with negative pictures and we examined the differential emotional reactivity according to trait anxiety, followed by a comparison of the efficiency of reappraisal and distraction in reducing emotional responses. Results: Results show that trait anxiety has no impact on reactivity at the experiential and expressive levels, but has an impact at the physiological level, where high anxiety individuals show increased cardiac orienting effect, as well as higher skin conductance and respiratory rate. Regarding regulation, reappraisal and distraction successfully reduce emotional experience and expressivity, but not physiological arousal. Conclusions: Such contrasting results involve that high trait anxiety individuals might benefit from the use of other kinds of strategies than reappraisal and distraction, some that may successfully target physiological responses.
New Results on Quasar Emission-Line Redshift Differences

Les redshifts des raies d'emission Mg λ2800, C IV λ1549 et C III] λ1909 d'un echantillon de quasars sont analyses. Une difference de redshift est determinee entre les raies Mg II et C IV et entre les raies C III] et C IV. Une correlation lineaire entre l'inverse de la largeur equivalente de la raie C IV et la difference de redshift Mg II-C IV est etablie pour les quasars normaux, qui n'apparait pas dans les quasars a raie d'absorption large (BAL).
HIGH-ORDER BUCKLING ANALYSIS OF SANDWICH BEAMS WITH TRANSVERSELY FLEXIBLE CORE

Buckling behavior of sandwich beams with a soft core is presented. The buckling analysis consists of formulation of linear and nonlinear behavior equations, boundary conditions, and continuity conditions. The beam construction is general and consists of two skins (not necessarily identical), metallic or composite laminated symmetric, and a soft core made of foam or a low‐strength honeycomb that is flexible in the vertical direction. The analysis uses a high‐order theory that permits nonlinear distortion of the plane of section of the core as well as changes in its height. Closed‐form solutions are presented for simply supported beams with identical skins and only numerical results for other cases. The analysis determines overall and local buckling behaviors as well as deformations, internal resultants, and stresses in the interface layers between core and skins due to imperfections. Numerical studies reveal that under some structural configurations, local buckling is critical, rather than global buckling.
Travel Route Planning with Optimal Coverage in Difficult Wireless Sensor Network Environment

In recent years, wireless sensor networks (WSNs) have been widely applied to sense the physical environment, especially some difficult environment due to their ad-hoc nature with self-organization and local collaboration characteristics. Meanwhile, the rapid development of intelligent vehicles makes it possible to adopt mobile devices to collect information in WSNs. Although network performance can be greatly improved by those mobile devices, it is difficult to plan a reasonable travel route for efficient data gathering. In this paper, we present a travel route planning schema with a mobile collector (TRP-MC) to find a short route that covers as many sensors as possible. In order to conserve energy, sensors prefer to utilize single hop communication for data uploading within their communication range. Sojourn points (SPs) are firstly defined for a mobile collector to gather information, and then their number is determined according to the maximal coverage rate. Next, the particle swarm optimization (PSO) algorithm is used to search the optimal positions for those SPs with maximal coverage rate and minimal overlapped coverage rate. Finally, we schedule the shortest loop for those SPs by using ant colony optimization (ACO) algorithm. Plenty of simulations are performed and the results show that our presented schema owns a better performance compared to Low Energy Adaptive Clustering Hierarchy (LEACH), Multi-hop Weighted Revenue (MWR) algorithm and Single-hop Data-gathering Procedure (SHDGP).
Evaluation of vitamin D biosynthesis and pathway target genes reveals UGT2A1/2 and EGFR polymorphisms associated with epithelial ovarian cancer in African American Women

An association between genetic variants in the vitamin D receptor (VDR) gene and epithelial ovarian cancer (EOC) was previously reported in women of African ancestry (AA). We sought to examine associations between genetic variants in VDR and additional genes from vitamin D biosynthesis and pathway targets (EGFR, UGT1A, UGT2A1/2, UGT2B, CYP3A4/5, CYP2R1, CYP27B1, CYP24A1, CYP11A1, and GC). Genotyping was performed using the custom‐designed 533,631 SNP Illumina OncoArray with imputation to the 1,000 Genomes Phase 3 v5 reference set in 755 EOC cases, including 537 high‐grade serous (HGSOC), and 1,235 controls. All subjects are of African ancestry (AA). Logistic regression was performed to estimate odds ratios (OR) and 95% confidence intervals (CI). We further evaluated statistical significance of selected SNPs using the Bayesian False Discovery Probability (BFDP). A significant association with EOC was identified in the UGT2A1/2 region for the SNP rs10017134 (per allele OR = 1.4, 95% CI = 1.2‐1.7, P = 1.2 × 10−6, BFDP = 0.02); and an association with HGSOC was identified in the EGFR region for the SNP rs114972508 (per allele OR = 2.3, 95% CI = 1.6‐3.4, P = 1.6 × 10−5, BFDP = 0.29) and in the UGT2A1/2 region again for rs1017134 (per allele OR = 1.4, 95% CI = 1.2‐1.7, P = 2.3 × 10−5, BFDP = 0.23). Genetic variants in the EGFR and UGT2A1/2 may increase susceptibility of EOC in AA women. Future studies to validate these findings are warranted. Alterations in EGFR and UGT2A1/2 could perturb enzyme efficacy, proliferation in ovaries, impact and mark susceptibility to EOC.
The interrelation of UV and optical activity diagnostics in HK Lacertae.

Optical photometric and UV (IUE) spectroscopic data on the active RS CVn star HK Lac gathered in the years 1979, 1980 and 1987 are studied and compared. The photometry is modelled by representations of «starspots» and, in general, it is found that the ultraviolet emission lines are stronger at times of spot maximum. The variable interstellar absorption, due to the Doppler motion of the Mg II emission lines from the active stellar component as they move across the interstellar absorption lines, is quantitatively discussed. It is shown that, for HK Lac, the effect produces a double-peaked modulation in the Mg II h+k flux with an amplitude of 4.5 per cent, i.e considerably smaller than the observed modulation of ∼40 per cent