Miracle-dz/UniFAR-FTUs huggingface dataset:
Research on Consumers' Willingness to Use Tourism Service Robots Based on SPSS Analysis

: In the context of the continuous development of artificial intelligence, the application of service robots in tourism is becoming increasingly common. Whether service robots can meet consumers’ personalized and diversified needs and whether consumers are willing to use them needs further exploration. Therefore, this paper starts from consumers' willingness to use tourism service robots and takes task-technology fit of tourism service robots as the entry point. Questionnaires were collected online and offline, and SPSS was used to test the reliability and validity of the data. The structural equation model was used to conduct a path analysis, Bootstrap analysis in SPSS was used to test the mediation effect. The results show that task-technology fit has a significant positive impact on consumers' intention to use travel service robots, and performance perception plays a partially mediating role.
Dyck Paths with Peak‐ and Valley‐Avoiding Sets

In this paper, we focus on Dyck paths with peaks and valleys, avoiding an arbitrary set of heights. The generating functions of such types of Dyck paths can be represented by continued fractions. We also discuss a special case that requires all peak and valley heights to avoid congruence classes modulo k. We study the shift equivalence on sequences, which in turn induces an equivalence relation on avoiding sets.
Heterogeneous integration of a III-V quantum dot laser on high thermal conductivity silicon carbide.

Heat accumulation prevents semiconductor lasers from operating at their full potential. This can be addressed through heterogeneous integration of a III-V laser stack onto non-native substrate materials with high thermal conductivity. Here, we demonstrate III-V quantum dot lasers heterogeneously integrated on silicon carbide (SiC) substrates with high temperature stability. A large T0 of 221 K with a relatively temperature-insensitive operation occurs near room temperature, while lasing is sustained up to 105°C. The SiC platform presents a unique and ideal candidate for realizing monolithic integration of optoelectronics, quantum, and nonlinear photonics.
A New Image Denoising Algorithm via Bivariate Shrinkage Based on Quaternion Wavelet Transform

Denoising of images corrupted by additive white Gaussian noise is a classical problem in image processing. This paper proposes an efficient algorithm for removing Gaussian noise from corrupted image by using quaternion wavelet transform and bivariate shrinkage function. The image is decomposed by quaternion wavelet transform to obtain the quaternion coefficients in each sub-band. Then a bivariate shrinkage function filter by using the maximum a posteriori is used to model the statistical dependencies among intra-scale quaternion coefficients. The proposed algorithm is compared with other denoising techniques in terms of PSNR. The experimental results indicate that the proposed algorithm outperforms the other denoising algorithms significantly.
The electronic conduction mechanism in barium strontium titanate thin films

In the literature, the Schottky emission equation is widely used to describe the conduction mechanism in perovskite-type titanate thin films. Though the equation provides a good fit to the leakage current data, the extracted values of the Richardson and dielectric constants are inconsistent with their experimental values. In this work, a modified Schottky equation is applied. This equation resolves the difficulties associated with the standard Schottky equation. Also, the electronic mobility in thin films of barium strontium titanate is reported.
Melatonin pretreatment can improve the therapeutic effect of adipose-derived stem cells on CCl4-induced liver fibrosis

Abstract In this study, the therapeutic effect of Mel-incubated Adipose-derived mesenchymal stem cells (ADSCs) on CCl4-induced hepatic fibrosis was investigated. Mice with hepatic fibrosis were intraperitoneally injected with 8% CCl4 twice a week for 4 weeks. Starting from week 5, mice in the ADSC group and ADSC + Mel group were injected with 1 mL PBS cell suspension containing 1 × 106 ADSCs or ADSCs pretreated with 50 nM Mel twice a week for 2 consecutive weeks. Results: In the model group, severe histopathological changes were observed in the liver, including severe vacuolation, nuclear fragmentation, and liver fibrosis, and these changes were ameliorated by Mel-pretreated ADSCs. RT-qPCR results showed that Mel-induced ADSCs significantly inhibited the expression of proapoptotic genes (Caspase-8, Bax, and Caspase-3) and promoted the expression of an anti-apoptotic gene (Bcl-2). Immunohistochemical results showed that a large number of MMP-9-, TGF-β-, and MMP-2-positive cells were present in the liver tissues of the model group, while the number of positive cells was reduced by Mel-induced ADSCs. ELISA results showed that the ADSC pretreated with Mel also significantly reduced the expression levels of TNF-α and IL-6. Conclusion: ADSCs pretreated with Mel significantly improved CCl4-induced liver fibrosis.
Estimation of State Transition Probabilities: A Neural Network Model

Humans and animals can predict future states on the basis of acquired knowledge. This prediction of the state transition is important for choosing the best action, and the prediction is only possible if the state transition probability has already been learned. However, how our brains learn the state transition probability is unknown. Here, we propose a simple algorithm for estimating the state transition probability by utilizing the state prediction error. We analytically and numerically confirmed that our algorithm is able to learn the probability completely with an appropriate learning rate. Furthermore, our learning rule reproduced experimentally reported psychometric functions and neural activities in the lateral intraparietal area in a decision-making task. Thus, our algorithm might describe the manner in which our brains learn state transition probabilities and predict future states.
Electron swarm development in SF6. II. Monte Carlo simulation

For pt.I see ibid., vol.21, p.922 (1988). Electron swarm parameters for the steady-state Townsend, pulsed Townsend and time-of-flight experiments are calculated for SF6 gas by Monte Carlo simulation over the E/N range from 141 to 707 Td. The calculation is carried out using the same cross sections determined by a Boltzmann equation method in pt.I. The present results are in excellent agreement with those deduced by the Boltzmann equation analysis for steady-state and pulsed Townsend experiments. The swarm parameters such as the centre-of-mass drift velocity Wr, the mean-arrival-time drift velocity Wm, the longitudinal DL and transverse DT diffusion coefficients for the time of flight, which were not calculated in the previous paper, are discussed in detail.
On the light-scatter technique for the study of turbulence and mixing

The light-scatter technique facilitates study of the concentration field when one of the streams entering a mixing region is marked with colloidal particles. The present paper provides basic information for the effective application of the technique. The system response is analysed theoretically. The problems of noise and spatial resolution are examined and experimental data are presented from which the response parameters are evaluated numerically. The capabilities of the technique for characterizing turbulent concentration fluctuations are described. The technique is excellent in the convection region of the turbulence spectrum but fails where molecular diffusion is important.
A Modification of Oseen's Approximate Equation for the Motion in Two Dimensions of a Viscous Incompressible Fluid

This paper is concerned with the steady motion in two dimensions, past a fixed cylindrical body, of an incompressible fluid possessing finite viscosity. Alternatively, the fluid may be imagined to be stationary at infinity, and the cylinder to move through it with uniform velocity in a direction normal to its own axis. The problem has importance for aeronautics, since a solution would permit the calculation of what in modern aerofoil theory is termed the ? profile drag. 2. Treating the cylinder as fixed, we take rectangular axes O x , O y , O z , of which 0 z is along its axis and O x is the direction of the undisturbed stream ( i.e ., of the flow at infinity). The motion of the fluid is then defined by component velocities u , v in the directions O x , O y respectively.
A generalization of two-dimensional theories of laminated composite plates†

A general two-dimensional shear deformation theory of laminated composite plates is presented. The theory account for a desired degree of approximation of the displacements through the laminate thickness. As special cases, the classical, first-order (Reissner–Mindlin) and other shear deformation theories available in the literature can be deduced from the present theory.
Five parameters for studying leadership styles in orchestra conductors

This study aims to investigate leadership in orchestra conducting and interrogate educational principles to improve conducting pedagogy. Effective leadership implies a set of interpersonal, communicational, and emotional skills combined with a high level of expertise, which may enable the leader to not only achieve excellent outcomes but also create a positive and collaborative working climate and vision for the performance. This work demonstrates that there are strong implications between effective leadership and orchestra conducting. We examine how orchestra conductors are perceived to be effective leaders and deduce from general leadership theories the following five parameters: charisma, stage presence, nonverbal communication, relationships with musicians, and leadership style. Interviews with orchestra conductors and performers support these five parameters for effective orchestra conducting. We perform a detailed analysis of the profiles of two renowned orchestra leaders— namely, Herbert von Karajan and Gustavo Dudamel— to test the five parameters and distill educational implications for both scholars and practitioners. The results are presented and discussed, along with implications for the education of orchestra conductors.
Extracellular Vesicles in Phytopathogenic Fungi

Extracellular vesicles (EVs) are nano-sized, lipid compartments that mediate the intercellular transport of lipids, proteins, nucleic acids and metabolites. During infectious diseases, EVs released by host cells promote immune responses, while those released by pathogens attempt to subvert host immunity. There is a growing body of research investigating the role of fungal EVs in plant pathosystems. It is becoming clear that EVs released by fungal phytopathogens play a role during infection through the transport of protein effectors, toxic metabolites and RNA. Here, we discuss recent findings on EVs in fungal phytopathogens, including the methods employed in their isolation, their characterization, contents and functionality, as well as the key questions remaining to be addressed.
The rapid and robust generation of efficient hybrid grids for rans simulations over complete aircraft

A description is given of a method capable of automatically forming efficient, high‐quality hybrid meshes for viscous flow calculations over complete aircraft, given engineers' requirements on mesh density and first cell‐height. Mixed quadrilateral/triangular surface grids are constructed using the moving‐front approach, with point placement and connection optimized to ensure high‐quality, anisotropic panels are generated. The volume mesh is built in two stages. A near field mesh is formed using the advancing‐layer approach, significantly enhanced through the use of mesh enriching/collapsing techniques and layer‐intersection detection/front‐termination algorithms. The remainder of the domain is then covered by a cut‐cell Cartesian mesh of varying density that conforms to the outer‐surface of the near field mesh. Examples of meshes generated using the described methods are presented and the user‐input discussed. Copyright © 2003 John Wiley & Sons, Ltd.
High operating temperature midwave infrared (MWIR) photodetectors based on type II InAs/GaSb strained layer superlattice

Midwave infrared (MWIR) photodetectors that do not require cryogenic cooling would significantly reduce the complexity of the cooling system, which would lead to a reduction in the size, weight, and cost of the detection system. The key aspect to realize high operating temperature (HOT) photodetectors is to design device structures that exhibit significantly lower levels of dark current compared to the existing technologies. One of the most attractive material systems to develop HOT photodetectors is InAs/GaSb Type II Strained layer Superlattice (SLS). This is due the ability of Type II SLS materials to engineer the band structure of the device, which can be exploited to make devices with unipolar barriers. It has been shown that, compared to the traditional homojunction SLS devices, band-gap engineered unipolar barrier SLS devices can obtain significantly lower levels of dark current. In this work, we report on the design, growth, and fabrication of mid wave infrared detectors based on type-II InAs/GaSb strained layer superlattice for high operating temperatures. The device architecture is the double-barrier heterostructure, pBiBn design. Under an applied bias of -10 mV and an operating temperature of 200 K, the tested devices show a dark current density of 4 x 10-3 A/cm2 and a quantum efficiency of 27%. At 4.5 μm and 200 K, the devices show a zero-bias specific detectivity of 4.4 x 1010 Jones.
Outcomes in Patients with Pulmonary Arterial Hypertension Underwent Transcatheter Closure of an Atrial Septal Defect

Pulmonary arterial hypertension (PAH) related to an atrial septal defect (ASD) poses a challenge to transcatheter closure of an ASD (tcASD). We aimed to determine the predictors for remaining PAH (rPAH) post-tcASD. This retrospective study was conducted at a single tertiary university hospital. Adult patients with an ASD and PAH were divided into three groups according to pulmonary vascular resistance (PVR). Normalization of pulmonary atrial systolic pressure (PASP) was defined as an estimated right ventricular systolic pressure < 40 mmHg and was determined using transthoracic echocardiography. Among 119 patients, 80% showed PAH normalization post-tcASD. Normalization of PAH post-tcASD was observed in 100%, 56.2%, and 28.6% of patients in mild, moderate, and severe PVR groups, respectively. The patients’ New York Heart Association functional class improved. Multivariate logistic regression analysis showed that age and high PVR were significant risk factors for rPAH. A receiving operator curve analysis showed a PASP cutoff value > 67.5 mmHg to be predictive of rPAH post-tcASD, with an area under the curve value of 0.944 (sensitivity, 0.922; specificity 0.933). Most patients, including moderate-to-severe PAH patients, improved hemodynamically and clinically with tcASD. Since patients with severe PAH are at a risk of rPAH, tcASD should be performed by selecting the patient carefully based on pre-procedure medication, a vasoreactivity test, and a balloon occlusion test.
APPLICATION OF GROOVED FINS TO ENHANCE FORCED CONVECTION TO TRANSVERSE FLOW

A numerical study is performed to investigate the heat transfer characteristics of a two-dimensional forced convection over a plate with protruded transverse groove fins. The study is made for four geometries, five different Reynolds numbers, and for more groove fins with smaller size. Numerical analysis is carried out to investigate the flow patterns, isotherms, heat transfer rates, and the effectiveness of the increased grooves. Local Nusselt number and total heat transfer rate are calculated and the average Nusselt number is correlated as a function of Reynolds and Prandtl numbers. Protruded grooves yield a much larger heat transfer rate than a flat plate owing to flow penetration into the groove. Grooved fins with protruded mounting are suitable for heat transfer enhancement, and the total length is recommended not to exceed the reattachment length significantly. The derived correlations and physical considerations may be used when designing grooved plates to enhance heat transfer.
Efficacy of laser interstitial thermal therapy for biopsy-proven radiation necrosis in radiographically recurrent brain metastases

Abstract Background Laser interstitial thermal therapy (LITT) in the setting of post-SRS radiation necrosis (RN) for patients with brain metastases has growing evidence for efficacy. However, questions remain regarding hospitalization, local control, symptom control, and concurrent use of therapies. Methods Demographics, intraprocedural data, safety, Karnofsky performance status (KPS), and survival data were prospectively collected and then analyzed on patients who consented between 2016–2020 and who were undergoing LITT for biopsy-proven RN at one of 14 US centers. Data were monitored for accuracy. Statistical analysis included individual variable summaries, multivariable Fine and Gray analysis, and Kaplan–Meier estimated survival. Results Ninety patients met the inclusion criteria. Four patients underwent 2 ablations on the same day. Median hospitalization time was 32.5 hours. The median time to corticosteroid cessation after LITT was 13.0 days (0.0, 1229.0) and cumulative incidence of lesional progression was 19% at 1 year. Median post-procedure overall survival was 2.55 years [1.66, infinity] and 77.1% at one year as estimated by KaplanMeier. Median KPS remained at 80 through 2-year follow-up. Seizure prevalence was 12% within 1-month post-LITT and 7.9% at 3 months; down from 34.4% within 60-day prior to procedure. Conclusions LITT for RN was not only again found to be safe with low patient morbidity but was also a highly effective treatment for RN for both local control and symptom management (including seizures). In addition to averting expected neurological death, LITT facilitates ongoing systemic therapy (in particular immunotherapy) by enabling the rapid cessation of steroids, thereby facilitating maximal possible survival for these patients.
On the Shape of the Galactic Dark Matter Halo

Abstract The confined nature of the debris from the Sagittarius dwarf to a narrow trail on the sky has recently prompted the suggestion that the dark matter halo of our Galaxy should be nearly spherical (Ibata et al. 2001; Majewski et al. 2003). This would seem to be in strong contrast with predictions from cold dark matter (CDM) simulations, where dark halos are found to have typical density axis ratios of 0.6 to 0.8. Here I present numerical simulations of the evolution of a system like the Sagittarius dSph in a set of Galactic potentials with varying degrees of flattening. These simulations show that the Sagittarius streams discovered so far are too young dynamically to be sensitive to the shape of the dark halo of the Milky Way. The data presently available are entirely consistent with a Galactic dark matter halo that could either be oblate or prolate, with density axis ratios c/a that range from 0.6 to 1.6 within the region of the halo probed by the orbit of the Sagittarius dwarf.
Manage Accounting in Globalization Era

The purpose of research on the role of technology and information of globalizationera to manage accounting data is to explain the benefits and examples of information and technology in globalized economies. The method used for this research was a qualitative method, which is a research method that provides explanations using analysis. The result of this research is that globalization's rapid rise as technology grows in various aspects of life is evident, among other things in economics. Technology and information facilitate daily activities and provide many benefits to human life especially in economic matters. The research concludes that technologies and information are useful for companies to manage economic transaction data that, in turn, provide decision-making, facilitate activities where one of the advantages increases productivity, etc.
Modeling of curves by a design-control approximating refinement scheme

Abstract This paper introduces a modified method for construction of a new design-control 6-point approximating refinement scheme. The construction of the new scheme is based on translation of the points of 4-point approximating refinement scheme to the new position according to the linear combination of certain displacement vectors. The initial and terminal points of these vectors are the refinement points of two 4-point approximating binary schemes. The new scheme contains three design-control parameters. These parameters increase the efficiency and flexibility of the new scheme. The mathematical and graphical analysis of the refinement scheme show that this scheme is good choice for curve modeling.
Inflammation macrophages contribute to cardiac homeostasis

Cardiovascular diseases (CVDs) have high morbidity. Many endogenous and exogenous factors provoke the innate immune response causing tissue damage and accelerating the progression of the diseases. The macrophages are the major cells mediating the inflammatory response. Inflammasomes are multi-protein complexes that recognize danger signals, activate cytokines, and participate in the inflammatory response. Both macrophages and inflammasomes play a critical role in the development and progression of CVDs, such as myocardial infarction, hypertension, and atherosclerosis. This review will summarize the studies on macrophages and inflammasomes and discuss potential therapeutic interventions. Moreover, macrophages and inflammasomes play distinct role in the inflammation process, but closely linked. The inflammasome system occur in macrophages, and macrophage pyroptosis may be provoked by inflammasome activation. The cytokines secreted by macrophages may be related to the activation of inflammasomes, and further activate macrophages in the heart and cause the interconversion of M1 phenotype and M2 phenotype. The mechanism of inflammasomes regulating macrophage polarization remains to be further investigated.
Sharp Bounds in the Binary Roy Model

We derive the empirical content of an instrumental variables model of sectoral choice with discrete outcomes. The partial identification results extend existing work on sharp bounds in binary choice threshold crossing models in allowing sector specific unobserved heterogeneity. Assumptions on selection include the simple, extended and generalized Roy models. The derived bounds are nonparametric intersection bounds and are simple enough to lend themselves to existing inference methods. Identification implications of exclusion restrictions are also derived. The derived bounds are applied to the analysis of the effect of Swan-Ganz catheterization and the robustness of previous findings to the introduction of procedure-specific unobserved heterogeneity is examined.
Tunable superlattice p-i-n photodetectors: characteristics, theory, and application

Extended measurements and theory on the recently developed monolithic wavelength demultiplexer consisting of voltage-tunable superlattice p-i-n photodetectors in a waveguide confirmation are discussed. It is shown that the device is able to demultiplex and detect two optical signals with a wavelength separation of 20 nm directly into different electrical channels at a data rate of 1 Gb/s and with a crosstalk attenuation varying between 20 and 28 dB, depending on the polarization. The minimum acceptable crosstalk attenuation at a data rate of 100 Mb/s is determined to be 10 dB. The feasibility of using the device as a polarization angle sensor for linearly polarized light is also demonstrated. A theory for the emission of photogenerated carriers out of the quantum wells is included, since this is potentially a speed limiting mechanism in these detectors. It is shown that a theory of thermally assisted tunneling by polar optical phonon interaction is able to predict emission times consistent with the observed temporal response. >