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1. Data-driven inference of high-dimensional spatiotemporal state of plasma systems.

Author

Reza, M., Faraji, F., and Kutz, J. N.

Subjects
*HALL effect thruster, *COMPRESSED sensing, *SPACE flight propulsion systems, *SENSOR placement, *SIGNAL processing
Abstract

Many plasma systems and technologies, such as Hall thrusters for spacecraft propulsion, exhibit complex underlying physics that affect the global operation. When characterizing such systems in an experiment, obtaining full spatiotemporal maps of the involved state variables can be, thus, highly informative. However, this goal is not practically realizable because of various experimental limitations, e.g., finite spatial resolution of the diagnostics and geometrical accessibility constraints. Therefore, having the capability to reconstruct the full high-dimensional states of plasma systems from low-dimensional time-history measurements is greatly desirable. Compressed sensing is a signal processing technique that can answer this crucial need. However, existing compressed sensing approaches have several limitations that restrict their effectiveness for complex physical systems like plasma technologies. These include the need for abundant sensor measurements and a principled sensor placement. In this paper, we demonstrate the capabilities of Shallow Recurrent Decoder (SHRED) architecture for compressed sensing. We show in several plasma test cases that SHRED can robustly infer full high-dimensional spatiotemporal state vectors of these systems (i.e., all macroscopic plasma properties) from minimal system information. This minimal information can consist of three finite time-history measurements of either local values of a plasma property or the global plasma properties (spatially averaged or performance parameters). An application of SHRED's inference capability in the numerical plasma simulation context is "super-resolution" enhancement. We will discuss this application by presenting how SHRED can effectively establish mappings between a low-resolution and a high-resolution simulation, recovering detailed spatial plasma features that are below the simulation's grid size. [ABSTRACT FROM AUTHOR]

Published
2024
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3. A Volumetric Metric for Monitoring Intracranial Aneurysms: Repeatability and Growth Criteria in a Longitudinal MR Imaging Study

Author

Liu, X, Haraldsson, H, Wang, Y, Kao, E, Ballweber, M, Martin, AJ, McCulloch, CE, Faraji, F, Saloner, D, and Group, for the UCSF Intracranial Aneurysm Monitoring

Subjects
Biomedical and Clinical Sciences, Clinical Sciences, Brain Disorders, Clinical Research, Neurosciences, Stroke, Biomedical Imaging, 4.2 Evaluation of markers and technologies, Detection, screening and diagnosis, Carotid Artery, Internal, Humans, Intracranial Aneurysm, Magnetic Resonance Angiography, Magnetic Resonance Imaging, Reproducibility of Results, UCSF Intracranial Aneurysm Monitoring Group, Nuclear Medicine & Medical Imaging, Clinical sciences, Physical chemistry
Abstract

Background and purposeThe reliability of contrast-enhanced MRA in monitoring serial volumetric changes of unruptured intracranial aneurysms has not been established. We aimed to determine the coefficient of variance of contrast-enhanced MRA in measuring aneurysm volumes, thus establishing criteria for aneurysm growth and permitting identification of variables predictive of growth.Materials and methodsAneurysm volumes were measured from serial contrast-enhanced MRA studies of patients with untreated intracranial aneurysms who underwent >2 sequential MR imaging evaluations. After coregistering all sequential studies in 3D space for each aneurysm and signal intensity normalization, aneurysm volume was determined across all time points. A linear mixed effects model was built to estimate the coefficient of variance of the measurement as well as to determine predictive variables. Growth was defined as relative growth exceeding 2 times the measurement coefficient of variance (sudden growth, as 4 times the coefficient of variance).ResultsA total of 95 patients with 112 aneurysms were included (5.9 scans during 4.0 years on average, 616 scan measurements in total). The coefficient of variance was 5.5% of the aneurysm volume, and the relative growth rate was dependent on the location: anterior cerebral artery, 4.52% per year; vertebral artery, 2.46% per year; middle cerebral artery, 2.74% per year; basilar artery, 2.36% per year; internal carotid artery, 1.14% per year. Thirty-six of 112 (32%) aneurysms were characterized as growing, and 11/36 of them had an episode of sudden growth.ConclusionsVolume measurement of unruptured intracranial aneurysms by contrast-enhanced MRA seems a reliable metric for tracking the growth trajectory of aneurysms. Furthermore, the aneurysm growth rate differs among different locations.

Published
2021

4. Influence of the magnetic field curvature on the radial–azimuthal dynamics of a Hall thruster plasma discharge with different propellants.

Author

Reza, M., Faraji, F., and Knoll, A.

Subjects
*HALL effect thruster, *PLASMA flow, *MAGNETIC fields, *PROPELLANTS, *CURVATURE, *ION bombardment, *GLOW discharges, *RADIATION shielding
Abstract

The topology of the applied magnetic field is an important design aspect of Hall thrusters. For modern Hall thrusters, the magnetic field topology most often features curved lines with a concave (negative) curvature upstream of the field's peak and a convex (positive) curvature downstream. Additionally, the advent of the magnetic shielding technique has resulted in Hall thruster designs with non-conventional field topologies that exhibit high degrees of concavity upstream of the field's peak. In this article, a detailed study is carried out on the effects that the magnetic field curvature has on the plasma discharge in a 2D configuration representative of a Hall thruster's radial–azimuthal cross section. The analyses are performed for discharges of three propellants of high applied interest: xenon, krypton, and argon. For each propellant, high-fidelity electrostatic reduced-order particle-in-cell (PIC) simulations are performed with various degrees of positive and negative curvatures of the magnetic field. Corresponding 1D radial PIC simulations are also performed for xenon to compare the observations against the 2D results. Most notably, it is observed that the instability spectra in the positive-curvature cases are mostly dominated by electron cyclotron drift instability, whereas the modified two stream instability is dominant in the negative-curvature cases. The distributions of electron and ion temperatures, in particular, as well as the contribution of various mechanisms to electrons' cross-field transport show notable variations between the positive and negative curvature values. Finally, the field curvature is observed to majorly influence the ion beam divergence along the radial and azimuthal coordinates. [ABSTRACT FROM AUTHOR]

Published
2023
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7. MR Venous Flow in Sigmoid Sinus Diverticulum

Author

Amans, MR, Haraldsson, H, Kao, E, Kefayati, S, Meisel, K, Khangura, R, Leach, J, Jani, ND, Faraji, F, Ballweber, M, Smith, W, and Saloner, D

Subjects
Biomedical and Clinical Sciences, Neurosciences, Clinical Sciences, Clinical Research, Biomedical Imaging, Adult, Aged, Cerebrovascular Circulation, Cranial Sinuses, Diverticulum, Female, Hemodynamics, Humans, Hydrodynamics, Magnetic Resonance Imaging, Male, Middle Aged, Tinnitus, Nuclear Medicine & Medical Imaging, Clinical sciences, Physical chemistry
Abstract

Background and purposeCase reports demonstrate that coiling of a sigmoid sinus diverticulum can treat pulsatile tinnitus. We hypothesized that MR imaging 4D flow and computational fluid dynamics would reveal distinct blood flow patterns in the venous outflow tract in these patients.Materials and methodsPatients with pulsatile tinnitus of suspected venous etiology underwent MR imaging at 3T, using venous phase contrast-enhanced MR angiography, 4D flow, and 2D phase contrast. The contrast-enhanced MRA contours were evaluated to determine the presence and extent of a sigmoid sinus diverticulum. Computational fluid dynamics analysis was performed using the 4D flow inlet flow and the luminal contours from contrast-enhanced MRA as boundary conditions. In addition, computational fluid dynamics was performed for the expected post treatment conditions by smoothing the venous geometry to exclude the sigmoid sinus diverticulum from the anatomic boundary conditions. Streamlines were generated from the 4D flow and computational fluid dynamics velocity maps, and flow patterns were examined for the presence of rotational components.ResultsTwenty-five patients with pulsatile tinnitus of suspected venous etiology and 10 control subjects were enrolled. Five (20%) of the symptomatic subjects had sigmoid sinus diverticula, all associated with an upstream stenosis. In each of these patients, but none of the controls, a stenosis-related flow jet was directed toward the opening of the sigmoid sinus diverticulum with rotational flow patterns in the sigmoid sinus diverticulum and parent sigmoid sinus on both 4D flow and computational fluid dynamics.ConclusionsConsistent patterns of blood flow can be visualized in a sigmoid sinus diverticulum and the parent sinus using 4D flow and computational fluid dynamics. Strong components of rotational blood flow were seen in subjects with sigmoid sinus diverticula that were absent in controls.

Published
2018

9. Effects of the neutral dynamics model on the particle-in-cell simulations of a Hall thruster plasma discharge.

Author

Faraji, F., Reza, M., and Knoll, A.

Subjects
*HALL effect thruster, *PLASMA flow, *ELECTRON mobility, *HIGH-frequency discharges, *PLASMA materials processing, *SPATIOTEMPORAL processes
Abstract

The dynamics of the neutral atoms in Hall thrusters affects several plasma processes, from ionization to electrons' mobility. In the context of Hall thruster's particle-in-cell (PIC) modeling, the neutrals are often treated kinetically, similar to the plasma species, and their interactions with themselves and the ions are resolved using the direct-simulation Monte–Carlo (DSMC) algorithm. However, the DSMC approach is computationally resource demanding. Therefore, modeling the neutrals as a 1D fluid has been also pursued in simulations that do not involve the radial coordinate and, hence, do not resolve the neutrals' radial expansion. In this article, we present an extensive study on the sensitivity of the PIC simulations of Hall thruster discharge to the model used for the neutral dynamics. We carried out 1D axial PIC simulations with various fluid and kinetic models of the neutrals as well as self-consistent quasi-2D axial-azimuthal simulations with different neutrals' fluid descriptions. Our results show that the predictions of the simulations in either 1D or 2D configurations are highly sensitive to the neutrals' model, and that different treatments of the neutrals change the spatiotemporal evolution of the discharge. Moreover, we observed that considering the ion-neutral collisions causes a significant variation in the neutral temperature, thus requiring that the neutrals' energy equation to be included as well in their fluid system of equations. Finally, the self-consistent axial-azimuthal simulations highlighted that a neutrals' model based on the continuity conservation equation only is not an appropriate choice and leads to physically unexpected high-frequency global discharge oscillations. [ABSTRACT FROM AUTHOR]

Published
2023
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10. Parametric investigation of azimuthal instabilities and electron transport in a radial-azimuthal E × B plasma configuration.

Author

Reza, M., Faraji, F., and Knoll, A.

Subjects
*ELECTRON transport, *HALL effect thruster, *SECONDARY electron emission, *PLASMA instabilities, *MAGNETIC fields, *PLASMA beam injection heating
Abstract

Partially magnetized low-temperature plasmas (LTP) in an E × B configuration, where the applied magnetic field is perpendicular to the self-consistent electric field, have become increasingly relevant in industrial applications. Hall thrusters, a type of electrostatic plasma propulsion, are one of the main LTP technologies whose advancement is hindered by the not-fully-understood underlying physics of operation, particularly, with respect to the plasma instabilities and the associated electron cross field transport. The development of Hall thrusters with unconventional magnetic field topologies has imposed further questions regarding the instabilities' characteristics and the electrons' dynamics in these modern cross field configurations. Accordingly, we present in this effort a detailed parametric study of the influence of three factors on the plasma processes in the radial-azimuthal coordinates of a Hall thruster, namely, the magnetic field gradient, secondary electron emission, and plasma number density. The studies are carried out using the reduced-order particle-in-cell code developed by the authors. The setup of the radial-azimuthal simulations largely follows a well-defined benchmark case from the literature in which the magnetic field is oriented along the radius, and a constant axial electric field is applied perpendicular to the simulation plane. The salient finding from our investigations is that, in the studied cases corresponding to elevated plasma densities, a long-wavelength azimuthal mode with the frequency of about 1 MHz is developed. Moreover, in the presence of strong magnetic field gradients, this mode results from an inverse energy cascade and induces a significant electron cross field transport as well as a notable heating of the ions. [ABSTRACT FROM AUTHOR]

Published
2023
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12. Effects of the applied fields' strength on the plasma behavior and processes in E×B plasma discharges of various propellants: I. Electric field.

Author

Reza, M., Faraji, F., and Knoll, A.

Subjects
*PLASMA flow, *ELECTRIC fields, *PLASMA materials processing, *PROPELLANTS, *PLASMA instabilities, *ELECTRON distribution, *COLLISIONLESS plasmas
Abstract

We present an extensive study into the influences that the magnitudes of the applied electric (E) and magnetic (B) fields have on collisionless plasma discharges of xenon, krypton, and argon. The studies are performed in a two-dimensional radial-azimuthal configuration with perpendicular fields' orientation. The dependency of the dynamics of E × B discharges on the strength of electromagnetic field and ion mass has not yet been studied in a manner that distinguishes the role of individual factors. This has been, in part, due to significant computational cost of conventional high-fidelity particle-in-cell (PIC) codes that do not allow for practical extensive simulations over broad parameter spaces. Also, the experimental efforts have been limited by aspects such as the measurements' spatiotemporal resolution and the inability to independently control individual discharge parameters. The computationally efficient reduced-order PIC scheme allows to numerically cast light on the parametric variations of various aspects of the physics of E × B discharges, such as high-resolution spatial-temporal mappings of plasma instabilities. In this part I, we focus on the effects of the E -field intensity. We demonstrate that, across all the studied propellants, the E -field intensity determines two distinct plasma regimes characterized by different dominant instability modes. At relatively low E -field magnitudes, the modified two stream instability (MTSI) is dominant. At relatively high E -field magnitudes, the MTSI is mitigated, and the electron cyclotron drift instability becomes dominant. Consequent to the change in the plasma regime, the radial distribution of the axial electron current density and the electron temperature anisotropy vary. [ABSTRACT FROM AUTHOR]

Published
2024
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15. Video game training enhances cognitive control in older adults

Author

Gazzaley, Adam, Anguera, JA, Boccanfuso, J, Rintoul, JL, Al-Hashimi, O, Faraji, F, Janowich, J, Kong, E, Larraburo, Y, Rolle, C, and Johnston, E

Abstract

Cognitive control is defined by a set of neural processes that allow us to interact with our complex environment in a goal-directed manner. Humans regularly challenge these control processes when attempting to simultaneously accomplish multiple goals (mult

Published
2013

16. Video game training enhances cognitive control in older adults.

Author

Boccanfuso, J, Rintoul, J, Al-Hashimi, O, Faraji, F, Janowich, J, Kong, E, Larraburo, Y, Rolle, C, Johnston, E, Gazzaley, Adam, and Anguera, Joaquin

Subjects
Adult, Aged, Aged, 80 and over, Aging, Automobile Driving, Biomedical Enhancement, Brain, Cognition, Electroencephalography, Humans, Male, Memory, Short-Term, Middle Aged, Neuropsychological Tests, Psychomotor Performance, Theta Rhythm, Time Factors, Video Games, Young Adult
Abstract

Cognitive control is defined by a set of neural processes that allow us to interact with our complex environment in a goal-directed manner. Humans regularly challenge these control processes when attempting to simultaneously accomplish multiple goals (multitasking), generating interference as the result of fundamental information processing limitations. It is clear that multitasking behaviour has become ubiquitous in todays technologically dense world, and substantial evidence has accrued regarding multitasking difficulties and cognitive control deficits in our ageing population. Here we show that multitasking performance, as assessed with a custom-designed three-dimensional video game (NeuroRacer), exhibits a linear age-related decline from 20 to 79 years of age. By playing an adaptive version of NeuroRacer in multitasking training mode, older adults (60 to 85 years old) reduced multitasking costs compared to both an active control group and a no-contact control group, attaining levels beyond those achieved by untrained 20-year-old participants, with gains persisting for 6 months. Furthermore, age-related deficits in neural signatures of cognitive control, as measured with electroencephalography, were remediated by multitasking training (enhanced midline frontal theta power and frontal-posterior theta coherence). Critically, this training resulted in performance benefits that extended to untrained cognitive control abilities (enhanced sustained attention and working memory), with an increase in midline frontal theta power predicting the training-induced boost in sustained attention and preservation of multitasking improvement 6 months later. These findings highlight the robust plasticity of the prefrontal cognitive control system in the ageing brain, and provide the first evidence, to our knowledge, of how a custom-designed video game can be used to assess cognitive abilities across the lifespan, evaluate underlying neural mechanisms, and serve as a powerful tool for cognitive enhancement.

Published
2013

17. Enhancing one-dimensional particle-in-cell simulations to self-consistently resolve instability-induced electron transport in Hall thrusters.

Author

Faraji, F., Reza, M., and Knoll, A.

Subjects
*HALL effect thruster, *ELECTRON transport, *ELECTRON capture, *PROPULSION systems, *ELECTRIC fields, *PREDICTION models
Abstract

The advent of high-power Hall thrusters and the increasing interest toward their use as a primary propulsion system for various missions have given a new boost to the efforts aiming at self-consistent predictive modeling of this thruster technology. In this article, we present a novel approach, which allows enhancing the predictive capability of one-dimensional particle-in-cell (PIC) simulations to self-consistently capture the wave-induced electron transport due to the azimuthal instabilities in Hall thrusters. The so-called "pseudo-2D" PIC scheme resulting from this approach is extensively tested in several operating conditions. The results are compared against a well-established 2D3V axial–azimuthal reference case in terms of the axial profiles of the time-averaged plasma properties, the azimuthal electric field fluctuations and their dispersion features, and the contributions of the force terms in the electron azimuthal momentum equation to the cross-field mobility. We have demonstrated that the pseudo-2D PIC provides a prediction of the above aspects that compares very closely in almost all conditions with those from the full-2D simulation. In addition, the sensitivity of the pseudo-2D simulation results to the numerical parameters associated with our approach is assessed in detail. The outcomes of these analyses have casted light on the next steps to further improve the approach. [ABSTRACT FROM AUTHOR]

Published
2022
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18. Hybrid plasma simulations of a magnetically shielded Hall thruster.

Author

Perales-Díaz, J., Domínguez-Vázquez, A., Fajardo, P., Ahedo, E., Faraji, F., Reza, M., and Andreussi, T.

Subjects
HALL effect thruster, HYBRID computer simulation, LOW temperature plasmas, PLASMA flow, MAGNETIC shielding, PLUMES (Fluid dynamics), FLUX (Energy)
Abstract

Numerical simulations of a magnetically shielded Hall effect thruster with a centrally mounted cathode are performed with an axisymmetric hybrid particle-in-cell/fluid code and are partially validated with experimental data. A full description of the plasma discharge inside the thruster chamber and in the near plume is presented and discussed, with the aim of highlighting those features most dependent on the magnetic configuration and the central cathode. Compared to traditional magnetic configurations, the acceleration region is mainly outside the thruster, whereas high plasma densities and low temperatures are found inside the thruster. Thus, magnetic shielding does not decrease plasma currents to the walls, but reduces significantly the energy fluxes, yielding low heat loads and practically no wall erosion. The injection of neutrals at the central cathode generates a secondary plasma plume that merges with the main one and facilitates much the drift of electrons toward the chamber. Once inside, the magnetic topology is efficient in channeling electron current away from lateral walls. Current and power balances are analyzed to assess performances in detail. [ABSTRACT FROM AUTHOR]

Published
2022
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21. Dynamic mode decomposition for data-driven analysis and reduced-order modeling of E × B plasmas: II. Dynamics forecasting.

Author

Faraji, F, Reza, M, Knoll, A, and Kutz, J N

Subjects
*REDUCED-order models, *FAST Fourier transforms, *HALL effect thruster, *FOURIER analysis, *FORECASTING, *RADIAL distribution function, *ELECTRON impact ionization
Abstract

In part I of the article, we demonstrated that a variant of the dynamic mode decomposition (DMD) algorithm based on variable projection optimization, called optimized DMD (OPT-DMD), enables a robust identification of the dominant spatiotemporally coherent modes underlying the data across various test cases representing different physical parameters in an E × B simulation configuration. We emphasized that the OPT-DMD significantly improves the analysis of complex plasma processes, revealing information that cannot be derived using conventionally employed analyses such as the fast Fourier transform. As the OPT-DMD can be constrained to produce stable reduced-order models (ROMs) by construction, in this paper, we extend the application of the OPT-DMD and investigate the capabilities of the linear ROM from this algorithm toward forecasting in time of the plasma dynamics in configurations representative of the radial-azimuthal and axial-azimuthal cross-sections of a Hall thruster and over a range of simulation parameters in each test case. The predictive capacity of the OPT-DMD ROM is assessed primarily in terms of short-term dynamics forecast or, in other words, for large ratios of training-to-test data. However, the utility of the ROM for long-term dynamics forecasting is also presented for an example case in the radial-azimuthal configuration. The model's predictive performance is heterogeneous across various test cases. Nonetheless, a remarkable predictiveness is observed in the test cases that do not exhibit highly transient behaviors. Moreover, in all investigated cases, the error between the ground-truth and the reconstructed data from the OPT-DMD ROM remains bounded over time within both the training and the test window. As a result, despite its limitation in terms of generalized applicability to all plasma conditions, the OPT-DMD is proven as a reliable method to develop low computational cost and highly predictive data-driven ROMs in systems with a quasi-periodic global evolution of the plasma state. [ABSTRACT FROM AUTHOR]

Published
2024
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22. Dynamic mode decomposition for data-driven analysis and reduced-order modeling of E × B plasmas: I. Extraction of spatiotemporally coherent patterns.

Author

Faraji, F, Reza, M, Knoll, A, and Kutz, J N

Subjects
*REDUCED-order models, *SINGULAR value decomposition, *FAST Fourier transforms, *PLASMA dynamics, *FREQUENCY spectra, *MACHINE learning, *MULTISPECTRAL imaging, *IDENTIFICATION
Abstract

The advent of data-driven/machine-learning based methods and the increase in data available from high-fidelity simulations and experiments has opened new pathways toward realizing reduced-order models for plasma systems that can aid in explaining the complex, multi-dimensional phenomena and enable forecasting and prediction of the systems' behavior. In this two-part article, we evaluate the utility and the generalizability of the dynamic mode decomposition (DMD) algorithm for data-driven analysis and reduced-order modeling of plasma dynamics in cross-field E × B configurations. The DMD algorithm is an interpretable data-driven method that finds a best-fit linear model describing the time evolution of spatiotemporally coherent structures (patterns) in data. We have applied the DMD to extensive high-fidelity datasets generated using a particle-in-cell (PIC) code based on the cost-efficient reduced-order PIC scheme. In this part, we first provide an overview of the concept of DMD and its underpinning proper orthogonal and singular value decomposition methods. Two of the main DMD variants are next introduced. We then present and discuss the results of the DMD application in terms of the identification and extraction of the dominant spatiotemporal modes from high-fidelity data over a range of simulation conditions. We demonstrate that the DMD variant based on variable projection optimization (OPT-DMD) outperforms the basic DMD method in identification of the modes underlying the data, leading to notably more reliable reconstruction of the ground-truth. Furthermore, we show in multiple test cases that the discrete frequency spectrum of OPT-DMD-extracted modes is consistent with the temporal spectrum from the fast Fourier transform of the data. This observation implies that the OPT-DMD augments the conventional spectral analyses by being able to uniquely reveal the spatial structure of the dominant modes in the frequency spectra, thus, yielding more accessible, comprehensive information on the spatiotemporal characteristics of the plasma phenomena. [ABSTRACT FROM AUTHOR]

Published
2024
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23. Computerized tumor multinucleation index (MuNI) is prognostic in [p16.sup.+] oropharyngeal carcinoma

Author

Koyuncu, Can F., Lu, Cheng, Bera, Kaustav, Zhang, Zelin, Xu, Jun, Toro, Paula, Corredor, German, Chute, Deborah, Fu, Pingfu, Thorstad, Wade L., Faraji, F., Bishop, Justin A., Mehrad, Mitra, Castro, Patricia D., Sikora, Andrew G., Thompson, Lester D.R., Chernock, R.D., Kuhs, Krystle A. Lang, Luo, Jingqin, Sandulache, Vlad, Adelstein, David J., Koyfman, Shlomo, Lewis, James S., Jr., and Madabhushi, Anant

Subjects
Throat cancer -- Development and progression -- Care and treatment, Prognosis -- Evaluation, Machine learning -- Methods, Health care industry
Abstract

BACKGROUND. Patients with [p16.sup.+] oropharyngeal squamous cell carcinoma (OPSCC) are potentially cured with definitive treatment. However, there are currently no reliable biomarkers of treatment failure for [p16.sup.+] OPSCC. Pathologist-based visual assessment of tumor cell multinucleation (MN) has been shown to be independently prognostic of disease-free survival (DFS) in [p16.sup.+] OPSCC. However, its quantification is time intensive, subjective, and at risk of interobserver variability. METHODS. We present a deep-learning-based metric, the multinucleation index (MuNI), for prognostication in [p16.sup.+] OPSCC. This approach quantifies tumor MN from digitally scanned H&E-stained slides. Representative H&E-stained whole-slide images from 1094 patients with previously untreated [p16.sup.+] OPSCC were acquired from 6 institutions for optimization and validation of the MuNI. RESULTS. The MuNI was prognostic for DFS, overall survival (OS), or distant metastasis-free survival (DMFS) in [p16.sup.+] OPSCC, with HRs of 1.78 (95% CI: 1.37-2.30), 1.94 (1.44-2.60), and 1.88 (1.43-2.47), respectively, independent of age, smoking status, treatment type, or tumor and lymph node (T/N) categories in multivariable analyses. The MuNI was also prognostic for DFS, OS, and DMFS in patients with stage I and stage III OPSCC, separately. CONCLUSION. MuNI holds promise as a low-cost, tissue-nondestructive, H&E stain-based digital biomarker test for counseling, treatment, and surveillance of patients with [p16.sup.+] OPSCC. These data support further confirmation of the MuNI in prospective trials. FUNDING. National Cancer Institute (NCI), NIH; National Institute for Biomedical Imaging and Bioengineering, NIH; National Center for Research Resources, NIH; VA Merit Review Award from the US Department of VA Biomedical Laboratory Research and Development Service; US Department of Defense (DOD) Breast Cancer Research Program Breakthrough Level 1 Award; DOD Prostate Cancer Idea Development Award; DOD Lung Cancer Investigator-Initiated Translational Research Award; DOD Peer-Reviewed Cancer Research Program; Ohio Third Frontier Technology Validation Fund; Wallace H. Coulter Foundation Program in the Department of Biomedical Engineering; Clinical and Translational Science Award (CTSA) program, Case Western Reserve University; NCI Cancer Center Support Grant, NIH; Career Development Award from the US Department of VA Clinical Sciences Research and Development Program; Dan L. Duncan Comprehensive Cancer Center Support Grant, NIH; and Computational Genomic Epidemiology of Cancer Program, Case Comprehensive Cancer Center. The content is solely the responsibility of the authors and does not necessarily represent the official views of the NIH, the US Department of VA, the DOD, or the US Government., Introduction The continued increase in the incidence of oropharyngeal squamous cell carcinoma (OPSCC) in the setting of declining rates of tobacco use has been attributed to HPV, with almost 70% [...]

Published
2021
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26. Effects of the neutral dynamics model on the particle-in-cell simulations of a Hall thruster plasma discharge

Author

Faraji, F, Reza, M, Knoll, A, and Commission of the European Communities

Subjects
Plasma Physics (physics.plasm-ph), 02 Physical Sciences, FOS: Physical sciences, Computational Physics (physics.comp-ph), Physics - Computational Physics, 01 Mathematical Sciences, 09 Engineering, Physics - Plasma Physics, Applied Physics
Abstract

The dynamics of the neutral atoms in Hall thrusters affect several plasma processes, from the ionization to the electrons' mobility. In the context of Hall thruster's particle-in-cell (PIC) modeling, the neutrals are often treated kinetically, similar to the plasma species, and their interactions with themselves and the ions are resolved using the Direct-Simulation Monte-Carlo (DSMC) algorithm. However, the DSMC approach is computationally resource demanding. Therefore, modeling the neutrals as a 1D fluid has been also pursued in simulations that do not involve the radial coordinate and, hence, do not resolve the neutrals' radial expansion. In this article, we present an extensive study on the sensitivity of the PIC simulations of Hall thruster discharge to the model used for the neutral dynamics. We carried out 1D axial PIC simulations with various fluid and kinetic models of the neutrals as well as self-consistent quasi-2D axial-azimuthal simulations with different neutrals' fluid descriptions. Our results show that the predictions of the simulations in either 1D or 2D configurations are highly sensitive to the neutrals' model, and that different treatments of the neutrals change the spatiotemporal evolution of the discharge. Moreover, we observed that considering the ion-neutral collisions causes a significant variation in the neutral temperature, thus requiring that the neutrals' energy equation to be included as well in their fluid system of equations. Finally, the self-consistent axial-azimuthal simulations highlighted that a neutrals' model based on the continuity conservation equation only is not an appropriate choice and leads to physically unexpected high-frequency global discharge oscillations., Comment: 32 pages, 30 figures

Published
2023
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28. Metrics Derived from Architecture of Tumor-Infiltrating Lymphocytes are Associated with Overall Survival in HPV-Positive Oropharyngeal Squamous Cell Carcinoma Patients: Results from NRG/RTOG 0129 and 0522

Author

Corredor, G., Harris, J., Koyuncu, C., Pathak, T., Pandav, K., Toro, P., Yang, K., Faraji, F., Castro, P., Sandulache, V.C., Koyfman, S.A., Nguyen, F., Garden, A.S., Caudell, J.J., Jones, C.U., Rosenthal, D.I., Le, Q.T., Lewis, J.S., and Madabhushi, A.

Published
2024
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31. Video game training enhances cognitive control in older adults

Author

Anguera, J.A., Boccanfuso, J., Rintoul, J.L., Hashimi, O. Al-, Faraji, F., Janowich, J., Kong, E., Larraburo, Y., Rolle, C., Johnston, E., and Gazzaley, A.

Subjects
Video games -- Usage, Cognition -- Research, Cognition in children -- Research, Adults -- Demographic aspects -- Physiological aspects -- Psychological aspects, Environmental issues, Science and technology, Zoology and wildlife conservation
Abstract

Cognitive control is defined by a set of neural processes that allow us to interact with our complex environment in a goal-directed manner (1). Humans regularly challenge these control processes [...]

Published
2013
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38. The application of zero-inflated count regression models for identifying main factors on the number of blood donor deferral in Shahrekord

Author

Kohansal M, Farahani H, and Faraji F

Subjects
Multiple sclerosis, Creatinine, lcsh:R, Urea, lcsh:Medicine, Uric acid
Abstract

Background and aims: Multiple sclerosis considers as one of the most common neurological diseases. The aim of this study was to evaluate changes in biochemical parameters associated with kidney function, including urea, uric acid and creatinine in patients with multiple sclerosis while taking the drug and compared them with a control group. Methods: Multiple sclerosis considered as one of the most common neurological diseases. The aim of this study was to evaluate changes in biochemical parameters associated with kidney function, including urea, uric acid and creatinine in patients with multiple sclerosis while taking the drug and compared them with a control group. Results: The mean serum urea level in case and control was 4.58, 14.38, 4.33 and 13.86 mg/dl, respectively. The mean of acid uric level in patients and control were respectively 0.99, 4.66 mg/dl and 1.06, 4.64 mg/dl. The mean of creatinine concentration in case and control was 0.10, 0.85 and 0.11, 0.78 mg/dl, respectively. Conclusion: Present study indicated that no statistically significant difference observed in serum levels of urea, uric acid and creatinine, between case and control groups

Published
2016

39. Speech Intelligibility in Persian Children with Down Syndrome

Author

Valizadeh, A., Fatehi, F., Yavari, A., Hamid Dalvand, Molai, N., Faraji, F., and Bayat, B.

Subjects
Down syndrome, lcsh:R, lcsh:Vocational rehabilitation. Employment of people with disabilities, lcsh:HD7255-7256, otorhinolaryngologic diseases, lcsh:Medicine, Intelligibility of speech, Speech disorder
Abstract

Objectives: One of the most effective methods to describe speech disorders is the measurement of speech intelligibility. The speech intelligibility indicates the extent of acoustic signals that correctly speaker produces and hearer receives. The purpose of this study was to investigate the speech intelligibility in the Persian children with Down syndrome, age range was 3 to 5 years, who had spoken Persian. Methods: this cross- sectional study investigates 12 children (6 girls and 6 boys) with Down syndrome who had referred to speech therapy clinic in Hamadan city and 12 normal children (6 girls and 6 boys) who went to the kindergarten in Hamadan city. The pictures of speech intelligibility test (in Persian language) were used to collect speech samples of participants. The participant’s voice was recorded by voice recorder and was investigated in two age groups. Results: The results of this study indicated the means of speech intelligibility was 92.25 for normal children and 35.08 for children with Down syndrome. The correlation between age and speech intelligibility for normal children was 0.866 and for children with Down syndrome was 0.352. The mean of speech intelligibility 2 for normal boys was 93 and for normal girls 91.5 and for boys with Down syndrome 34.66 and for girls with Down syndrome 35.5. Discussion: The difference between normal children and children with Down syndrome was Significant. One of the factors that affects speech intelligibility for children with Down syndrome is difficulty with voluntarily programming, combining, organizing, and sequencing the movements necessary for speech.

Published
2015

40. Antennoseius Berlese 1916

Author

Faraji, F., Dehelean, S. - B., Vuyk, M., and Bakker, F.

Subjects
Arthropoda, Arachnida, Mesostigmata, Animalia, Biodiversity, Antennoseius, Taxonomy, Ascidae
Abstract

Antennoseius Berlese, 1916: 303. Type species: Antennoseius delicatus Berlese, 1916, by original designation. For the genus diagnosis see Moraes et al. (2016)., Published as part of Faraji, F., Dehelean, S. - B., Vuyk, M. & Bakker, F., 2017, Four new species records of Antennoseius and Anystipalpus (Acari: Mesostigmata: Ascidae) phoretic on Carabidae beetles from France, pp. 337-353 in Acarologia 57 (2) on page 339, DOI: 10.1051/acarologia/20174159, http://zenodo.org/record/4640282, {"references":["Berlese A. 1916 - Centuria terza di Acari nuovi - Redia, 12: 289 - 338.","Moraes G. J., Britto E. P. J., Mineiro J. L. de C., Halliday B. 2016 - Catalogue of the mite families Ascidae Voigts & Oudemans, Blattisociidae Garman and Melicharidae Hirschmann (Acari: Mesostigmata) - Zootaxa, 4112 (1): 1 - 299. doi: 10.11646 / zootaxa. 4112.1.1"]}

Published
2017
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41. Antennoseius (Antennoseius) pannonicus Willmann 1951

Author

Faraji, F., Dehelean, S. - B., Vuyk, M., and Bakker, F.

Subjects
Arthropoda, Arachnida, Mesostigmata, Animalia, Biodiversity, Antennoseius, Antennoseius pannonicus, Taxonomy, Ascidae
Abstract

Antennoseius (Antennoseius) pannonicus Willmann, 1951 (Figures 1-4, 8A) Antennoseius pannonicus Willmann, 1951: 109. Antennoseius pannonicus. Athias-Henriot, 1961: 461; Ryke, 1962: 662; Karg, 1971: 298; 1977: 4; 1993: 305; Farrier & Hennessey, 1993: 23. Antennoseius (Antennoseius) pannonicus. Bregetova, 1977: 248; Beaulieu et al., 2008: 47; Lindquist & Moraza, 2009: 34; Moraes et al., 2016: 73. Female — five specimens measured. Dorsal idiosoma (Figure 1A) — Idiosoma oval, 565 (530 – 590) long; dorsal shield divided and reticulate over entire surface; podonotal shield 294 (288 – 300) long and 240 (238 – 243) wide at j5 level, with 19 pairs of dorsal setae (r2 seta on the shield) and 7 pairs of pore-like structures (with no distinction made between poroids and glandular pores); j1 short 10 (9-10), j2, j3, j4 and j5 modified, short and spinelike 15 – 18, z1 20 – 21; opisthonotal shield 249 (235 – 263) long and 233 (230 – 238) wide at J2 level, with 15 pairs of dorsal setae and 8 pairs of pore-like structures; J2 35 (34 – 38), Z5 35 (32 – 38); lateral soft integument with 4 pairs of r setae (r3-6), r3 27 (25 – 28) and 21 – 22 pairs of R – UR setae, dorsal idiosomal setae smooth, except Z5 and most R – UR setae are slightly barbed. Peritreme — Extending anteriorly to level of seta s1, at venter, anterior to coxa I (Figures 1A & 1B). Peritrematal-exopodal plate nearly smooth with three to four longitudinal lines near posterior end of stigma, widened and notched posteriorly; pores on peritrematal-exopodal plate not visible. Ventral idiosoma (Figure 1B) — All ventral setae smooth; tritosternum 108 (105 – 110) long with paired laciniae, free for about three-fourths of total length and pilose, subrectangular base 16 – 18 long and 12 – 13 wide medially; two pairs of subtriangular sclerotized presternal plates; sternal shield 145 (138 – 149) long along midline, 111 (110 – 112) wide at st2 level; with 2 pairs of sternal setae (st3 off the shield) and three pairs of lyrifissures; st1 35 (33 – 38) long; with a prominent brownish crown-shape configuration between st1 setae, posterior part of sternal shield between lyrifissures iv2 and iv3 weakly sclerotized and laterally eroded; epigynal shield 58 (55 – 60) at greatest width, evenly rounded posteriorly with setae st5 on lateral margins; paragenital poroids iv5 on soft cuticle; endopodal plates weakly developed (except for region between coxae I and II, where fused with sternal shield), posterior section represented by one pair of strips between coxae III and IV parallel to epyginal shield and the other pairs positioned transversely between coxae II and III; anal shield weakly reticulate and pearshaped 109 (102 – 115) long and 69 (65 – 73) of greatest width, with three circumanal setae and gland pores gv3 on shield margin; ten pairs of setae (JV1- 5 and ZV1-5) on soft cuticle laterad of anal shield; with two pairs of metapodal plates, the smaller pair posteriad of peritrematal plate, the larger pair oval (about 28x10). Gnathosoma — Tectum (Figure 2B) with anterior margin serrate and with three short projections, dorsal surface with a transverse line of denticles; deutosternum with a smooth transverse line between h3 followed by 7 denticulate transverse lines, denticulate lines 2 – 6 with 12 – 14 denticles, line 7 with 9 – 10 denticles and curved, proximalmost line longer with 25 – 30 denticles (Figure 2A); palpcoxal setae (pc) 27 – 29, hypostomal setae h1 25 – 26, h2 10 – 12, and h3 26 – 27, all smooth; corniculi horn-like; internal malae slightly fimbriated laterally; fixed cheliceral digit with setiform pilus dentilis and a row of about 10 teeth, movable digit tridentate (Figure 2C); palp apotele two-tined. Legs (Figure 3) — Lengths, Leg I 607 (600 – 610), leg II 420 (410 – 430), leg III 410 (400 – 420), leg IV 557 (550 – 560); most of leg setae smooth except some setae lightly barbed, dorsal seta of trochanter I slightly thickened and barbed, ventral setae of trochanters I-IV slightly thickened; setation of legs I – II – III – IV: coxae 2 – 2 – 2 – 1, trochanters 6 – 5 – 5 – 5, femora 12 – 11 – 6 – 6, genua 13 (2 3/1 3/2 2) – 11(2 3/1 2/1 2) – 9 (2 2/1 2/1 1) – 9 (2 2/1 3/0 1), tibiae 13 (2 3/1 3/2 2) – 10 (2 3/1 2/1 1) – 8 (2 2/1 1/1 1) – 10 (2 2/1 2/1 2), tarsus II-IV 3 3/2 3/2 3+ mv,md. Spermathecal Apparatus — This species has apparently type A complex (laelapid) of sperm access system (Figure 8A); sacculus vestibules fingershaped with relatively wider duct, situated between coxae III and IV. Male — Not phoretic and not found. Specimens examined — 23 June 2015: 8♀♀ on Harpalus rufipes (Degeer); 20♀♀ on Poecilus cupreus (Linne); 3♀♀ on Pterostichus madidus (Fabricius); 23 Sep. 2015: 3♀♀ on Calathus fuscipes (Goeze); 12♀♀ on Harpalus calceatus (Duftschmid); 1♀ on Nebria salina Fairmaire et Laboulbene; 18♀♀ on Pterostichus madidus (Fabricius); 3♀♀ on Scybalicus oblongiusculus (Dejean); 04 Aug. 2015: 3♀♀ on Harpalus distinguendus (Duftschmid); 1♀ on Pterostichus melanarius (Illiger), all collected by Bogdan Dehelean in Villeneuve de Mezin, Lot-et-Garonne, South West France. Remarks — The prominent brownish crownshape configuration on the sternal shield of A. pannonicus is a unique feature that allows identification of this species by just using a dissecting microscope. Descriptions of legs, tectum and hypostome, which were lacking in the original description by Willmann (1951) are provided here. Figure 4 shows the position of mites under the elytra of a carabid beetle., Published as part of Faraji, F., Dehelean, S. - B., Vuyk, M. & Bakker, F., 2017, Four new species records of Antennoseius and Anystipalpus (Acari: Mesostigmata: Ascidae) phoretic on Carabidae beetles from France, pp. 337-353 in Acarologia 57 (2) on pages 339-343, DOI: 10.1051/acarologia/20174159, http://zenodo.org/record/4640282, {"references":["Willmann C. 1951 - Untersuchugen uber die terrestrische Milbenfauna im pannonischen Klimagebiet Osterreichs. Sitzungsberichte der Osterreichischen Akademie der Wissenschaften, Mathematisch - Naturwissenschaftliche Abteilung I, 160: 91 - 176.","Athias-Henriot C. 1961 - Mesostigmates (Urop. Excl.) edaphiques mediterraneens (Acaromorpha, Anactinotrichida) (collect. Prof. H. Franz et C. Athias- Henriot). Pemiere Serie) - Acarologia, 3 (4): 381 - 509.","Ryke P. A. J. 1962 - The genus Antennoseius Berlese (Acarina: Rhodacaridae) - Ann. Mag. Nat. Hist., 13 (4): 657 - 663.","Karg W. 1971 - Acari (Acarina), Milben, Unterordnung Anactinochaeta (Parasitiformes): Die freilebenden Gamasina (Gamasides), Raubmilben. In: Die Tierwelt Deutschlands und der Angrenzenden Meeresteile, 59. Teil. Gustav Fischer Verlag, Jena. 475 p.","Karg W. 1977 - Die Milbengattung Antennoseius Berlese, 1916 (Acarina, Parasitiformes) mit einer neuen Art aus dem Leutratal bei Jena (DDR). Abhandlungen und Berichte des Naturkundemuseums Gorlitz, 50 (4): 1 - 7.","Karg W. 1993 - Acari (Acarina), Milben Parasitiformes (Anactinochaeta) Cohors Gamasina Leach, Raubmilben. In: Die Tierwelt Deutschlands und der angrenzenden Meeresteile nach ihren Merkmalen und ihrer Lebensweise. 59. Teil. 2 uberarbeitete Auflage, Gustav Fischer Verlag, Jena, 523 pp.","Farrier M. H., Hennessey M. K. 1993 - Soil-inhabiting and free-living Mesostigmata (Acari-Parasitiformes) from North America. An annotated checklist with bibliography and index. North Carolina Agricultural Research Service, North Carolina State University, Raleigh, Technical Bulletin, 302: 408 pp.","Bregetova N. G. 1977 - Family Antennoseiidae Karg, 1965. In: Ghilyarov, M. S. & Bregetova, N. G. (eds.). Key to the soil-inhabiting mites, Mesostigmata - Leningrad: Nauka, pp. 244 - 253.","Beaulieu F., DechOEne A. D., Walter D. E. 2008 - Phase morphs and phoresy: new species of Antennoseius (Vitzthumia) mites (Acari: Mesostigmata: Ascidae) associated with pyrophilous carabids (Carabidae: Sericoda spp.) in Alberta, Canada - Zootaxa, 1961: 37 - 57.","Lindquist E. E., Moraza M. L. 2009 - Anystipalpus, Antennoseius and Vitzthumia: a taxonomic and nomenclatural conundrum of genera (Acari: Mesostigmata: Dermanyssina), with description of four species of Anystipalpus - Zootaxa, 2243: 1 - 39.","Moraes G. J., Britto E. P. J., Mineiro J. L. de C., Halliday B. 2016 - Catalogue of the mite families Ascidae Voigts & Oudemans, Blattisociidae Garman and Melicharidae Hirschmann (Acari: Mesostigmata) - Zootaxa, 4112 (1): 1 - 299. doi: 10.11646 / zootaxa. 4112.1.1"]}

Published
2017
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42. Antennoseius (Antennoseius) pseudospinosus Eidelberg, Ansystipalpus 1990

Author

Faraji, F., Dehelean, S. - B., Vuyk, M., and Bakker, F.

Subjects
Antennoseius pseudospinosus, Arthropoda, Arachnida, Mesostigmata, Animalia, Biodiversity, Antennoseius, Taxonomy, Ascidae
Abstract

Antennoseius (Antennoseius) pseudospinosus Eidelberg, 1990. (Figures 5 – 7, 8B) Antennoseius (Antennoseius) pseudospinosus, Eidelberg, 1990: 78; Moraes et al., 2016: 73. Female — five specimens measured. Dorsal idiosoma (Figure 5A) — Idiosoma oval, 412 (400 – 435) long; dorsal shield divided and strongly reticulate over entire surface with some short striations especially around setae and behind J4, dorsal shield setae all setiform; podonotal shield 228 (225 – 235) long and 208 (200 – 215) wide at j5 level, with 19 pairs of dorsal setae (r2 seta on the shield), pore-like structures difficult to observe; j1 17 (15 – 18), z1 12 (11 – 13); opisthonotal shield 183 (175 – 195) long and 183 (180 – 185) wide at J2 level with 15 pairs of dorsal setae and 8 pairs of porelike structures; J2 32 (31-33), Z5 35 (32 – 38); lateral soft integument with 4 pairs of r setae (r3-6), r3 23 (22 – 24) and 16 pairs of R – UR setae, most setae on opisthonotal shield and R – UR setae slightly barbed. Peritreme — Extending anteriorly to level of seta z1 (Figure 5A). Peritrematal-exopodal plate reticulate with a line extending behind stigma, slightly widened and notched posteriorly. Ventral idiosoma (Figure 5B) — All ventral setae smooth; tritosternum 90 (89 – 90) long with paired laciniae, free for about two-thirds of total length and pilose, subrectangular base 17 – 18 long and 10 – 11 wide medially; with two pairs of narrow sclerotized presternal plates; sternal shield 114 (113 – 115) long along midline (ignoring anterior concavity), 42 (40 – 45) wide at st2 level; mid anterior part with a depression, shield with two parallel longitudinal lines in the middle, posterior margin of sternal shield concave, with three pairs of sternal setae and two pairs of lyrifissures (iv3 apparently absent in all 23 mounted specimens); st1 25 (24 – 25) long, st1 and st2 slightly thicker than st3 and st4 narrower than st3; epigynal shield 42 (40 – 45) at greatest width, evenly rounded posteriorly with setae st5 on lateral margins; paragenital poroids iv5 on soft cuticle; endopodal plates weakly developed (except for region between coxae I and II, where fused with sternal shield), posterior section represented by one pair of strips between coxae III and IV parallel to epyginal shield and the other pairs positioned transversely between coxae II and III; anal shield weakly reticulate and pear-shaped 85 (78 – 88) long and 59 (55 – 63) of greatest width, with three circumanal setae and gland pores gv3 on shield margin; ten pairs of setae (JV1-5 and ZV1-5) on soft cuticle laterad of anal shield; opisthogastric venter with two pair of metapodal plates, the smaller pair posteriad of peritrematal plate, the larger pair subcircular (about 17x13). Gnathosoma — Tectum (Figure 6B) with anterior margin serrate and with three short projections, dorsal surface with a transverse line of denticles; deutosternum with a smooth transverse line between h3 followed by 7 denticulate transverse lines, denticulate lines with 5 – 9 denticles, line 7 curved and proximalmost line longer (Figure 6A); palpcoxal setae (pc) 18 – 20, hypostomal setae h1 25, h2 12 – 13, and h3 17 – 19, all smooth; corniculi horn-like; internal malae slightly fimbriated laterally; fixed cheliceral digit with setiform pilus dentilis and a row of about 15 – 16 teeth, movable digit tridentate (including a tiny subapical denticle)(Figure 6C); palp apotele two-tined. Legs (Figure 7) — Lengths, Leg I 385 (380 – 390), leg II 300 (290 – 310), leg III 273 (270 – 280), leg IV 350 (345 – 360); all leg setae smooth except some setae lightly barbed, dorsal seta of trochanter I slightly thickened and barbed apically; setation of legs I – II – III – IV: coxae 2 – 2 – 2 – 1, trochanters 6 – 5 – 5 – 5, femora 12 – 11 – 6 – 6, genua 13 (2 3/2 3/1 2) – 11(2 2/1 3/1 2) – 9 (2 2/1 2/1 1) – 9 (2 2/1 2/1 1), tibiae 13 (2 3/1 3/2 2) – 10 (2 3/1 2/1 1) – 8 (2 2/1 1/1 1) – 10 (2 2/1 2/1 2), tarsus II-IV 3 3/2 3/2 3+ mv,md. Spermathecal Apparatus — Sacculus vestibules of this species is short and comma-shaped with narrow duct (Figure 8B). The sacculus vestibules stays most of the time attached to the margin of coxa III. Male — Not phoretic and not found. Specimens examined — 13 April 2015: 7♀♀ on Poecilus cupreus (Linne); 27 April 2015: 4♀♀ on Poecilus cupreus (Linne); 23 Sep. 2015 2♀♀ on Calathus fuscipes (Goeze); 16 Nov. 2015: 2♀♀ on Nebria brevicollis (Fabricius), 8♀♀ on Nebria salina Fairmaire et Laboulbene, all collected by Bogdan Dehelean in Villeneuve de Mezin, Lot-et-Garonne, South West France. Remarks — The original description of A. pseudospinosus provided by Eidelberg (1990) is poor with a mistake. He mentioned podonotal shield with 21 pairs of setae. His figure clearly shows r4 and r5 on the shield. The specimens collected in this study however have 19 pairs of setae (setae r4 and r5 off the shield). Dr. Viacheslav Trach confirmed the presence of 19 pairs of podonotal setae on his collected specimens from Ukraine (Pers. Comm. with the senior author)., Published as part of Faraji, F., Dehelean, S. - B., Vuyk, M. & Bakker, F., 2017, Four new species records of Antennoseius and Anystipalpus (Acari: Mesostigmata: Ascidae) phoretic on Carabidae beetles from France, pp. 337-353 in Acarologia 57 (2) on pages 343-347, DOI: 10.1051/acarologia/20174159, http://zenodo.org/record/4640282, {"references":["Eidelberg M. M. 1990 - Three new species of carabidophilous ticks (Antennoseiidae: Mesostigmata) from the Ukraine and Byelorussia - Byulletin Gosudarstvennogo Nikitskiog Botanicheskogo Sada, 71: 75 - 82.","Moraes G. J., Britto E. P. J., Mineiro J. L. de C., Halliday B. 2016 - Catalogue of the mite families Ascidae Voigts & Oudemans, Blattisociidae Garman and Melicharidae Hirschmann (Acari: Mesostigmata) - Zootaxa, 4112 (1): 1 - 299. doi: 10.11646 / zootaxa. 4112.1.1"]}

Published
2017
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43. Anystipalpus percicola Berlese 1911

Author

Faraji, F., Dehelean, S. - B., Vuyk, M., and Bakker, F.

Subjects
Arthropoda, Anystipalpus percicola, Arachnida, Mesostigmata, Animalia, Biodiversity, Anystipalpus, Taxonomy, Ascidae
Abstract

Anystipalpus percicola Berlese, 1911 Anystipalpus percicola Berlese, 1911: 185. Anystipalpus percicola. Lindquist & Moraza, 2009: 14; Moraes et al., 2016: 76. Antennoseius (Antennoseius) nataliae Eidelberg, 1990: 75 (Synonymy by Lindquist & Moraza, 2009: 14). Antennoseius (Antennoseius) nataliae. Beaulieu et al., 2008: 52. Specimens examined — 04 Aug. 2015: 2♀♀ on Harpalus rufipes (Degeer); 23 Sep. 2015: 2♀♀ on Scybalicus oblongiusculus (Dejean), all collected by Bogdan Dehelean in Villeneuve de Mezin, Lot-et- Garonne, South West France. Spermathecal Apparatus — Proximal part of sacculus vestibules narrow, sclerotized and then funnel-shaped (Figure 8D). Remarks — Lindquist and Moraza (2009) gave a complete re-description for this species., Published as part of Faraji, F., Dehelean, S. - B., Vuyk, M. & Bakker, F., 2017, Four new species records of Antennoseius and Anystipalpus (Acari: Mesostigmata: Ascidae) phoretic on Carabidae beetles from France, pp. 337-353 in Acarologia 57 (2) on page 347, DOI: 10.1051/acarologia/20174159, http://zenodo.org/record/4640282, {"references":["Berlese A. 1911 - Alcuni Acari entomofili nuovi - Redia, 7: 183 - 186.","Lindquist E. E., Moraza M. L. 2009 - Anystipalpus, Antennoseius and Vitzthumia: a taxonomic and nomenclatural conundrum of genera (Acari: Mesostigmata: Dermanyssina), with description of four species of Anystipalpus - Zootaxa, 2243: 1 - 39.","Moraes G. J., Britto E. P. J., Mineiro J. L. de C., Halliday B. 2016 - Catalogue of the mite families Ascidae Voigts & Oudemans, Blattisociidae Garman and Melicharidae Hirschmann (Acari: Mesostigmata) - Zootaxa, 4112 (1): 1 - 299. doi: 10.11646 / zootaxa. 4112.1.1","Eidelberg M. M. 1990 - Three new species of carabidophilous ticks (Antennoseiidae: Mesostigmata) from the Ukraine and Byelorussia - Byulletin Gosudarstvennogo Nikitskiog Botanicheskogo Sada, 71: 75 - 82.","Beaulieu F., DechOEne A. D., Walter D. E. 2008 - Phase morphs and phoresy: new species of Antennoseius (Vitzthumia) mites (Acari: Mesostigmata: Ascidae) associated with pyrophilous carabids (Carabidae: Sericoda spp.) in Alberta, Canada - Zootaxa, 1961: 37 - 57."]}

Published
2017
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44. Anystipalpus livshitsi

Author

Faraji, F., Dehelean, S. - B., Vuyk, M., and Bakker, F.

Subjects
Anystipalpus livshitsi, Arthropoda, Arachnida, Mesostigmata, Animalia, Biodiversity, Anystipalpus, Taxonomy, Ascidae
Abstract

Anystipalpus livshitsi (Eidelberg, 1989) Antennoseius livshitsi Eidelberg, 1989: 74. Anystipalpus livshitsi. Lindquist & Moraza, 2009: 3; Moraes et al., 2016: 76. Antennoseius ukrainicus Sklyar, 1994: 484 (Synonymy by Lindquist & Moraza, 2009: 18)._ Antennoseius (Antennoseius) ukrainicus. Beaulieu et al., 2008: 52. Specimens examined — 27 April 2015: 1♀ Poecilus cupreus (Linne); 04 Aug. 2015: 1♀ on Harpalus rufipes (Degeer); 23 Sep. 2015: 6♀♀ on Brachinus crepitans (Linnaeus), 8♀♀ on Harpalus rufipes (Degeer), 27♀♀ on Poecilus cupreus (Linne), 2♀♀ on Pterostichus macer (Marsham); 16 Nov. 2015: 2♀♀ on Pterostichus madidus (Fabricius), 2♀♀ on Pterostichus melanarius (Illiger), all collected by Bogdan Dehelean in Villeneuve de Mezin, Lot-et-Garonne, South West France. Spermathecal Apparatus — Sacculus vestibules sack-shaped, relatively larger and more sclerotized than the other three species found in this study (Figure 8C). Remarks — Lindquist and Moraza (2009) gave a complete re-description for this species., Published as part of Faraji, F., Dehelean, S. - B., Vuyk, M. & Bakker, F., 2017, Four new species records of Antennoseius and Anystipalpus (Acari: Mesostigmata: Ascidae) phoretic on Carabidae beetles from France, pp. 337-353 in Acarologia 57 (2) on page 347, DOI: 10.1051/acarologia/20174159, http://zenodo.org/record/4640282, {"references":["Eidelberg M. M. 1989 - Two new mite species of the family Antennoseiidae (Parasitiformes, Mesostigmata) from ground beetles (Coleoptera, Carabidae) - Bulletin of the State Nikita Botanical Gardens, 70: 74 - 79. [In Russian].","Lindquist E. E., Moraza M. L. 2009 - Anystipalpus, Antennoseius and Vitzthumia: a taxonomic and nomenclatural conundrum of genera (Acari: Mesostigmata: Dermanyssina), with description of four species of Anystipalpus - Zootaxa, 2243: 1 - 39.","Moraes G. J., Britto E. P. J., Mineiro J. L. de C., Halliday B. 2016 - Catalogue of the mite families Ascidae Voigts & Oudemans, Blattisociidae Garman and Melicharidae Hirschmann (Acari: Mesostigmata) - Zootaxa, 4112 (1): 1 - 299. doi: 10.11646 / zootaxa. 4112.1.1","Sklyar V. B. 1994 - Homologous rows by N. I. Vavilov as a basis for classification of gamasid mites of the genus Antennoseius Berlese, 1916 (Acarina: Parasitiformes) - Entomologicheskoe Obozrenie, 73 (2): 479 - 485.","Beaulieu F., DechOEne A. D., Walter D. E. 2008 - Phase morphs and phoresy: new species of Antennoseius (Vitzthumia) mites (Acari: Mesostigmata: Ascidae) associated with pyrophilous carabids (Carabidae: Sericoda spp.) in Alberta, Canada - Zootaxa, 1961: 37 - 57."]}

Published
2017
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45. Anystipalpus Berlese

Author

Faraji, F., Dehelean, S. - B., Vuyk, M., and Bakker, F.

Subjects
Arthropoda, Arachnida, Mesostigmata, Animalia, Biodiversity, Anystipalpus, Taxonomy, Ascidae
Abstract

Anystipalpus Berlese Anystipalpus Berlese, 1911: 184. Type species: Anystipalpus percicola Berlese, 1911, by original designation. For the genus diagnosis see Lindquist & Moraza (2009) and Moraes et al. (2016)., Published as part of Faraji, F., Dehelean, S. - B., Vuyk, M. & Bakker, F., 2017, Four new species records of Antennoseius and Anystipalpus (Acari: Mesostigmata: Ascidae) phoretic on Carabidae beetles from France, pp. 337-353 in Acarologia 57 (2) on page 347, DOI: 10.1051/acarologia/20174159, http://zenodo.org/record/4640282, {"references":["Berlese A. 1911 - Alcuni Acari entomofili nuovi - Redia, 7: 183 - 186.","Lindquist E. E., Moraza M. L. 2009 - Anystipalpus, Antennoseius and Vitzthumia: a taxonomic and nomenclatural conundrum of genera (Acari: Mesostigmata: Dermanyssina), with description of four species of Anystipalpus - Zootaxa, 2243: 1 - 39.","Moraes G. J., Britto E. P. J., Mineiro J. L. de C., Halliday B. 2016 - Catalogue of the mite families Ascidae Voigts & Oudemans, Blattisociidae Garman and Melicharidae Hirschmann (Acari: Mesostigmata) - Zootaxa, 4112 (1): 1 - 299. doi: 10.11646 / zootaxa. 4112.1.1"]}

Published
2017
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50. Oribatid mites in the Flevopark in Amsterdam (Acari: Oribatida)

Author

Doğan, S., Ayyıldız, N., Faraji, F., Dilkaraoğlu, S., Zeytun, E., Ersin, F., Doğan, S., Ayyıldız, N., Faraji, F., Dilkaraoğlu, S., Zeytun, E., and Ersin, F.

Abstract

The Flevopark is one of the most special green areas of Amsterdam with a rich nature. Twelve oribatid mite species were collected here in 2014 from bark and mosses on trees. Liacarus acutus and Perlohmannia dissimilis are reported for the first time from the Netherlands. It is not clear if the newly recorded species have always been overlooked or are recent immigrants.

Published
2015

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