Miracle-dz/UniFAR-FTUs huggingface dataset:
ON THE APPLICATION OF WESENHEIT FUNCTION IN DERIVING DISTANCE TO GALACTIC CEPHEIDS

In this paper, we explore the possibility of using the Wesenheit function to derive individual distances to Galactic Cepheids, as the dispersion of the reddening-free Wesenheit function is smaller than the optical period–luminosity (P-L) relation. When compared to the distances from various methods, the averaged differences between our results and published distances range from −0.061 to 0.009, suggesting that the Wesenheit function can be used to derive individual Cepheid distances. We have also constructed Galactic P-L relations and selected Wesenheit functions based on the derived distances. A by-product from this work is the derivation of Large Magellanic Cloud distance modulus when calibrating the Wesenheit function. It is found to be 18.531 ± 0.043 mag.
Nanoporous Membranes for the Filtration of Proteins from Biological Fluids: Biocompatibility Tests on Cell Cultures and Suggested Applications for the Treatment of Alzheimer’s Disease

Background: Alzheimer’s disease has a significant epidemiological and socioeconomic impact, and, unfortunately, the extensive research focused on potential curative therapies has not yet proven to be successful. However, in recent years, important steps have been made in the development and functionalization of nanoporous alumina membranes, which might be of great interest for medical use, including the treatment of neurodegenerative diseases. In this context, the aim of this article is to present the synthesis and biocompatibility testing of a special filtrating nano-membrane, which is planned to be used in an experimental device for Alzheimer’s disease treatment. Methods: Firstly, the alumina nanoporous membrane was synthesized via the two-step anodizing process in oxalic acid-based electrolytes and functionalized via the atomic layer deposition technique. Subsequently, quality control tests (spectrophotometry and potential measurements), toxicity, and biocompatibility tests (cell viability assays) were conducted. Results: The proposed alumina nanoporous membrane proved to be efficient for amyloid-beta filtration according to the permeability studies conducted for 72 h. The proposed membrane has proven to be fully compatible with the tested cell cultures. Conclusions: The proposed alumina nanoporous membrane model is safe and could be incorporated into implantable devices for further in vivo experiments and might be an efficient therapeutic approach for Alzheimer’s disease.
Wide-field 12CO (J = 1–0) imaging of the nearby barred galaxy M 83 with NMA and Nobeyema 45 m telescope: Mole cular gas kinematics and star formation along the bar

We present the results of the wide-field $^{12}$CO (1--0) observations of the nearby barred galaxy M83 carried out with the Nobeyama Millimeter Array (NMA). The interferometric data are combined with the data obtained with the Nobeyama 45-m telescope to recover the total-flux. The target fields of the observations cover the molecular bar and part of the spiral arms, with a spatial resolution of ~110 pc x 260 pc. By exploiting the resolution and sensitivity to extended CO emission, the impact of the galactic structures on the molecular gas content is investigated in terms of the gas kinematics and the star formation. By inspecting the gas kinematics, the pattern speed of the bar is estimated to be 57.4 $\pm$ 2.8 km s$^{-1}$ kpc$^{-1}$, which places the corotation radius to be about 1.7 times the semi-major radius of the bar. Within the observed field, HII regions brighter than 10$^{37.6}$ erg s$^{-1}$ in H{\alpha} luminosity are found to be preferentially located downstream of the CO emitting regions. Azimuthal angular offsets between molecular gas and star forming (SF) calculated with the angular cross-correlation method confirm the trend. By comparing with a cloud orbit model based on the derived pattern speed, the angular offsets are found to be in accordance with a time delay of about 10 Myr. Finally, to test whether the arm/bar promote star formation efficiency (SFE $\equiv$ Star Formation Rate (SFR)/H$_2$ mass), SFR is derived with the diffuse-background-subtracted H{alpha} and 24{\mu}m images. The arm-to-interarm ratio of the SFE is found to lie in the range of 2 to 5, while it is ~1 if no background-removal is performed. The CO-SF offsets and the enhancement of the SFE in the arm/bar found in the inner region of M83 are in agreement with the predictions of the classical galactic shock model.
Probing nuclear bubble structure via neutron star asteroseismology

We consider torsional oscillations that are trapped in a layer of spherical-hole (bubble) nuclear structure, which is expected to occur in the deepest region of the inner crust of a neutron star. Because this layer intervenes between the phase of slab nuclei and the outer core of uniform nuclear matter, torsional oscillations in the bubble phase can be excited separately from usual crustal torsional oscillations. We find from eigenmode analyses for various models of the equation of state of uniform nuclear matter that the fundamental frequencies of such oscillations are almost independent of the incompressibility of symmetric nuclear matter, but strongly depend on the slope parameter of the nuclear symmetry energy $L$. Although the frequencies are also sensitive to the entrainment effect, i.e., what portion of nucleons outside bubbles contribute to the oscillations, by having such a portion fixed, we can successfully fit the calculated fundamental frequencies of torsional oscillations in the bubble phase inside a star of specific mass and radius as a function of $L$. By comparing the resultant fitting formula to the frequencies of quasi-periodic oscillations (QPOs) observed from the soft-gamma repeaters, we find that each of the observed low-frequency QPOs can be identified either as a torsional oscillation in the bubble phase or as a usual crustal oscillation, given generally accepted values of $L$ for all the stellar models considered here.
Functional and radiological outcome of volar plate fixation in intra articular distal radius fractures

Introduction: Fractures of lower end radius are most common fractures of the upper extremity encountered in practice and constitute 17% of all fractures and 75% of all forearm fractures. These injuries account for approximately one sixth of all fractures seen and treated. In the words of Dr. Abraham Colles “this fracture takes place about an inch and a half above the carpal extremity of the radius and there is a 17% lifetime probability for distal radius fractures”. The majority of these injuries are 'closed', with no evidence of breach of the surrounding skin. Materials and Methods: A prospective study on cases of the fractures of the distal end of the radius, attending the Orthopaedics outdoor and the emergency services of Vinayaka Mission's Kirupananda Variyar Medical College and Hospital, Salem. The fractures were classified according to Modified AO Classification. 25 cases were followed at regular intervals and final assessment was done at 3 months (photographic plate 2). This study was conducted with detailed clinical and radiological analysis after surgical management of fractures of distal end of radius.
Gendering citizenship education. Feminist-relational approaches on political education

Questioning gender – by understanding that questions about gender are political - is one of the core implications of feminist epistemologies. The purpose of this article is to draw attention to how a gender perspective can question some dominant framings on citizenship education, and to discuss different ways in which feminist theory can help us to democratise political education practice. We begin by conceptualising politics as a relational practice, a place “in-between”, in which power is understood as concrete embodied actions, and the personal is recognized as political. We then examine three key notions associated with political education: citizenship, participation, and rights through the lens of feminist-relational theory, we question their possible shortcomings and identify political education paradigms that enable not only critical understanding, but also transgression. We conclude suggesting ways in which feminist-relational theory can help us to reconsider political education, further democratising who we care for, what we care for and how we care.
Turbulent Relative Particle Dispersion: Brownian Motion Theory

In this paper, the Brownian motion theory has been applied to the relative particle dispersion problem in more realistic turbulent flows. The fluctuating pressure forces acting on a fluid particle are taken to be a colored noise and follow a stationary Markov process and are described by the Uhlenbeck-Ornstein model while it appears plausible to take their correlation time to be inversely proportional to the flow Reynolds number $R_e$, thus introducing a bridge between the Lagrangian quantities and the Eulerian parameters for this problem. This ansatz is in qualitative agreement with the possibility of a connection speculated earlier by Corrsin [16] between the white noise assumption for the fluctuating pressure forces and the large-$R_e$ assumption in the Kolmogorov [4] theory for the 3D fully developed turbulence (FDT). This ansatz provides an insight into the result that the Richardson-Obukhov scaling holds only in the infinite-$R_e$ limit and disappears otherwise. It also confirms the Lin-Reid [13] conjecture regarding the connection between the fluctuating pressure-force parameter and the energy dissipation rate in turbulence and leads to an $R_e$-dependent explicit relation between the two speculated by Lin and Reid [13]. This ansatz is further shown to be in full agreement, in the small-$R_e$ limit, with the Batchelor-Townsend [17] scaling for the rate of change of the mean square interparticle separation in 3D FDT, hence further validating its soundness.
Spin injection and perpendicular spin transport in graphite nanostructures

Organic- and carbon-based materials are attractive for spintronics because their small spin-orbit coupling and low hyperfine interaction is expected to give rise to large spin-relaxation times. However, the corresponding spin-relaxation length is not necessarily large when transport is via weakly interacting molecular orbitals. Here we use graphite as a model system and study spin transport in the direction perpendicular to the weakly bonded graphene sheets. We achieve injection of highly 75% spin-polarized electrons into graphite nanostructures of 300–500 nm across and up to 17 nm thick, and observe transport without any measurable loss of spin information. Direct visualization of local spin transport in graphite-based spin-valve sandwiches also shows spatially uniform and near-unity transmission for electrons at 1.8 eV above the Fermi level.
Neuroleptic Malignant Syndrome From Oxcarbazepine and Topiramate Withdrawal: An Unusual Case

Neuroleptic malignant syndrome (NMS) is a rare, but fatal adverse reaction that is most commonly seen with typical antipsychotic medications. However, NMS can also be triggered by other dopamine-modulating agents that physicians are unlikely aware of, leading to being underdiagnosed or precluding early recognition of the syndrome. We describe a case involving a 20-year-old male who presented to the emergency department with altered mental status and failure to thrive. On admission, he subsequently developed an insidious onset of muscle rigidity and autonomic instability, and laboratory work-up was significant for leukocytosis, transaminitis, and elevations in creatinine phosphokinase, lactate, and C-reactive protein. After a battery of negative diagnostic tests, his clinical features fulfilled the NMS criteria by a diagnosis of exclusion, even in the absence of any antipsychotic regimen or dopaminergic medications. Management with dantrolene, amantadine, and aggressive fluid therapy provided a gradual return of the patient’s baseline mentation along with normalization in laboratory assessments. In this novel case of NMS, we suspect oxcarbazepine and topiramate withdrawal as possible attributing factors for the patient’s presentation. This article emphasizes the need for hypervigilance in future cases with high suspicion of NMS, in addition to raising a broader clinical awareness of other potential etiologies of NMS that are not restricted to only antipsychotic medications. We further discuss a review of the pathophysiology, various etiologies, clinical features, diagnostic criteria, treatment plans, and complications of NMS.
Emerging Evidence on Tenebrio molitor Immunity: A Focus on Gene Expression Involved in Microbial Infection for Host-Pathogen Interaction Studies

In recent years, the scientific community’s interest in T. molitor as an insect model to investigate immunity and host-pathogen interactions has considerably increased. The reasons for this growing interest could be explained by the peculiar features of this beetle, which offers various advantages compared to other invertebrates models commonly used in laboratory studies. Thus, this review aimed at providing a broad view of the T. molitor immune system in light of the new scientific evidence on the developmental/tissue-specific gene expression studies related to microbial infection. In addition to the well-known cellular component and humoral response process, several studies investigating the factors associated with T. molitor immune response or deepening of those already known have been reported. However, various aspects remain still less understood, namely the possible crosstalk between the immune deficiency protein and Toll pathways and the role exerted by T. molitor apolipoprotein III in the expression of the antimicrobial peptides. Therefore, further research is required for T. molitor to be recommended as an alternative insect model for pathogen-host interaction and immunity studies.
A Compact Quadruple-Band Circular Polarized MIMO Antenna With Low Mutual Coupling

This brief presents a compact multiband multiple input multiple output (MIMO) antenna, where two robot-character-shaped patches are closely positioned on the top of the substrate for circular polarization. The dimensions of the proposed MIMO antenna are <inline-formula> <tex-math notation="LaTeX">$0.34\lambda \times 0.13\lambda \times 0.01\lambda $ </tex-math></inline-formula> at 4 GHz and the distance between two symmetrical elements is <inline-formula> <tex-math notation="LaTeX">$0.05\lambda $ </tex-math></inline-formula> mm. The robot-character-shaped patch generates four different frequency bands of 3.85-4.25 GHz, 4.95-5.1 GHz, 6.94-7.35 GHz, and 8-8.3 GHz. The simulation and measurement results show that the designed antenna has better S-parameters <inline-formula> <tex-math notation="LaTeX">$|S_{11}| \le -$ </tex-math></inline-formula>10 dB, and an isolation of <inline-formula> <tex-math notation="LaTeX">$|S_{12}| \le -$ </tex-math></inline-formula>25 dB resulting from the irregular parasitic element to reduce mutual coupling, an axial ratio (AR) of no more than 3 dB, radiation pattern, total gain, and efficiency over all operating bands when compared to the existing two-port MIMO antennas. MIMO antennas diversity characteristics are also calculated to evaluate the proposed antennas performance. The proposed antenna is a good contender for 5G pioneer band, 5 GHz WLAN band, and satellite communication applications concomitantly.
Agar-based polyethylene glycol (PEG) infusion model for pea (Pisum sativum L.) — perspectives of translation to legume crop plants

Due to the oncoming climate changes water deficit represents one of the most important abiotic stressors which dramatically affects crop productivity worldwide. Because of their importance as the principal source of food protein, legumes attract a special interest of plant scientists. Moreover, legumes are involved in symbiotic association with rhizobial bacteria, which is morphologically localized to root nodules. These structures are critical for fixation of atmospheric nitrogen and highly sensitive to drought. Therefore, new drought-tolerant legume cultivars need to be developed to meet the growing food demand. However, this requires a comprehensive knowledge of the molecular mechanisms behind the plant stress response. To access these mechanisms, adequate and reliable drought stress models need to be established. The agar-based polyethylene glycol (PEG) infusion model allows a physiologically relevant reduction of soil water potential (Ψw), although it is restricted to seedlings and does not give access to proteomics and metabolomics studies. Earlier, we successfully overcame this limitation and optimized this model for mature Arabidopsis plants. Here we make the next step forward and address its application to one of the major crop legumes — pea. Using a broad panel of physiological and biochemical markers, we comprehensively prove the applicability of this setup to legumes. The patterns of drought-related physiological changes are well-interpretable and generally resemble the stress response of plants grown in soil-based stop-watering models. Thus, the proposed model can be efficiently used in the study of stress-related metabolic adjustment in green parts, roots and root nodules of juvenile and flowering plants.
Light-by-light scattering sum rules constraining meson transition form factors

Relating the forward light-by-light scattering to energy weighted integrals of the \gamma* \gamma -fusion cross sections, with one real photon (\gamma) and one virtual photon (\gamma*), we find two new exact super-convergence relations. They complement the known super-convergence relation based on the extension of the GDH sum rule to the light-light system. We also find a set of sum rules for the low-energy photon-photon interaction. All of the new relations are verified here exactly at leading order in scalar and spinor QED. The super-convergence relations, applied to the \gamma* \gamma -production of mesons, lead to intricate relations between the \gamma \gamma -decay widths or the \gamma* \gamma -transition form factors for (pseudo-) scalar, axial-vector and tensor mesons. We discuss the phenomenological implications of these results for mesons in both the light-quark sector and the charm-quark sector.
Community College International Leaders’ Sensemaking: Entrepreneurial Leadership Skills and Behavior

Objective: This article explores entrepreneurial leadership behavior from the vantage point of mid- and senior-level administrators who lead international education initiatives at U.S. community colleges. Administrators’ choices are examined to understand how they develop and use strategies for targeted problem solving within their institutional context. Research questions posed in this study include: (1) How, if at all, do community college international education leaders (CC-IELs) self-identify as entrepreneurs? (2) What characteristics embody a CC-IEL entrepreneurial leader? (3) How are CC-IELs navigators of institutional contexts? Methods: Semi-structured interviews are used to investigate the perspectives and entrepreneurial leadership skills and behaviors of 14 CC-IELs. A narrative analysis approach allowed these leaders to reflect on their perspectives and narrate their decision-making process. Results: Findings indicated that the CC-IELs in this study identified as entrepreneurial leaders, used characteristics such as collaboration to build a culture of innovation, and strategically utilized relationships with stakeholders to ground themselves as navigators of institutional contexts. Contributions: This article contributes to the understanding of an under-studied group of leaders in community colleges, specifically those who lead international education programs. It also provides insight into the entrepreneurial dimensions of CC-IEL leadership roles.
Water deuteration and ortho-to-para nuclear spin ratio of H2 in molecular clouds formed via the accumulation of H I gas

We investigate the water deuteration ratio and ortho-to-para nuclear spin ratio of H2 (OPR(H2)) during the formation and early evolution of a molecular cloud, following the scenario that accretion flows sweep and accumulate HI gas to form molecular clouds. We follow the physical evolution of post-shock materials using a one-dimensional shock model, with post-processing gas-ice chemistry simulations. This approach allows us to study the evolution of the OPR(H2) and water deuteration ratio without an arbitrary assumption concerning the initial molecular abundances, including the initial OPR(H2). When the conversion of hydrogen into H2 is almost complete, the OPR(H2) is already much smaller than the statistical value of three due to the spin conversion in the gas phase. As the gas accumulates, the OPR(H2) decreases in a non-equilibrium manner. We find that water ice can be deuterium-poor at the end of its main formation stage in the cloud, compared to water vapor observed in the vicinity of low-mass protostars where water ice is likely sublimated. If this is the case, the enrichment of deuterium in water should mostly occur at somewhat later evolutionary stages of star formation, i.e., cold prestellar/protostellar cores. The main mechanism to suppress water ice deuteration in the cloud is the cycle of photodissociation and reformation of water ice, which efficiently removes deuterium from water ice chemistry. The removal efficiency depends on the main formation pathway of water ice. The OPR(H2) plays a minor role in water ice deuteration at the main formation stage of water ice.
Research on the application of digital signal processing technology in gas detection

In today's information age, digital signal processing technology with a new form of technology has been applied to various fields of society, and with its own significant advantages, in each field has played a powerful role. In order to ensure the air quality of living and working environment, the primary task is to analyze the main pollutants in the air. In addition to traditional chemical monitoring methods, digital signal processing methods are more common to detect pollutants, but filtering technology is needed to overcome the noise interference in the detection process. In this paper, the digital filter technology in digital signal processing is described in detail, and the model of digital signal in gas detection principle is simply abstracted, and the main application of digital signal processing technology in gas detection is described at last. At the same time, the paper analyzes the application of digital signal processing technology in gas detection, hoping to provide some help to the application of this technology and the good detection and treatment of gas pollution. Finally, a signal processing device for differential gas detection and its gas detection system are introduced.