Plasmonic terahertz detectors based on a high-electron mobility GaAs/AlGaAs heterostructure

In order to characterize magnetic-field (B) tunable THz plasmonic detectors, spectroscopy experiments were carried out at liquid helium temperatures and high magnetic fields on devices fabricated on a high electron mobility GaAs/AlGaAs heterostructure. The samples were either gated (the gate of a meander shape) or ungated. Spectra of a photovoltage generated by THz radiation were obtained as a function of B at a fixed THz excitation from a THz laser or as a function of THz photon frequency at a fixed B with a Fourier spectrometer. In the first type of measurements, the wave vector of magnetoplasmons excited was defined by geometrical features of samples. It was also found that the magnetoplasmon spectrum depended on the gate geometry which gives an additional parameter to control plasma excitations in THz detectors. Fourier spectra showed a strong dependence of the cyclotron resonance amplitude on the conduction-band electron filling factor which was explained within a model of the electron gas heating with the THz radiation. The study allows to define both the advantages and limitations of plasmonic devices based on high-mobility GaAs/AlGaAs heterostructures for THz detection at low temperatures and high magnetic fields.Comment: 8 pages, 11 figure

Quasi-classical cyclotron resonance of Dirac fermions in highly doped graphene

Cyclotron resonance in highly doped graphene has been explored using infrared magnetotransmission. Contrary to previous work, which only focused on the magneto-optical properties of graphene in the quantum regime, here we study the quasi-classical response of this system. We show that it has a character of classical cyclotron resonance, with an energy which is linear in the applied magnetic field and with an effective cyclotron mass defined by the position of the Fermi level m = E_F/v_F^2.Comment: 6 pages, 4 figure

Slotted Aircraft Wing

An aircraft wing includes a leading airfoil element and a trailing airfoil element. At least one slot is defined by the wing during at least one transonic condition of the wing. The slot may either extend spanwise along only a portion of the wingspan, or it may extend spanwise along the entire wingspan. In either case, the slot allows a portion of the air flowing along the lower surface of the leading airfoil element to split and flow over the upper surface of the trailing airfoil element so as to achieve a performance improvement in the transonic condition

Telomere length profiles in primary human peritoneal mesothelial cells are consistent with senescence

Mesothelial cell (MC) senescence contributes to malignancy and tissue fibrosis. The role of telomere erosion in MC senescence remains controversial, with evidence for both telomere-dependent and telomere-independent mechanisms reported. Single telomere length analysis revealed considerable telomere length heterogeneity in freshly isolated human peritoneal MCs, reflecting a heterogeneous proliferative history and providing high-resolution evidence for telomere-dependent senescence. By contrast the attenuated replicative lifespan, lack of telomere erosion and induction of p16 expression in in vitro-aged cells was consistent with stress-induced senescence. Given the potential pathophysiological impact of senescence in mesothelial tissues, high-resolution MC telomere length analysis may provide clinically useful information

Ellen Scheible, “Body Politics in Contemporary Irish Women’s Fiction: The Literary Legacy of Mother Ireland”, Great Britain: Bloomsbury Academic, 2025, 177 p.

From the exposure of the Magdalene Laundries in 1993 to the publication of the Ryan Report in 2009, the Catholic Church’s authority in the Irish Republic has struggled to resurface amid the unrelenting waves of scandal and controversy. Its waning influence over public opinion marks a profound shift in the island’s institutional history and legislative politics. In the wake of the Church’s receding power, Ellen Scheible’s 2025 book, Body Politics in Contemporary Irish Women’s Fiction: The Literary Legacy of Mother Ireland, contributes to the ongoing collective “unveiling of Ireland’s historical traumas” (4), providing an in-depth examination of the multifarious ways literature has revisited and confronted the atrocities of the past. Through six chapters extending across multiple generations of Irish writers—such as James Joyce and Sally Rooney—the study surveys a wide-ranging selection of prose writings that challenge the idealized Revivalist image foundational to postcolonial Ireland, traditionally modeled on the sanctified figure of the Virgin Mary. With an intersectional focus on the depictions of the Irish domestic interior and the female body, Scheible argues that modern definitions of Irishness were inextricably shaped by a female subjectivity entrenched in binary constructions of gender, the patriarchal “internal policing” within the confines of “the family cell” (15), and the regulation of sexuality and reproductive autonomy

Christinna Hazzard, Semi-Peripheral Realism. Nation and Form on the Borders of Europe, Palgrave Macmillan, 2024, 230 p.

Christinna Hazzard’s 2024 study, Semi-Peripheral Realism: Nation and Form on the Borders of Europe, undertakes the ambitious task of navigating the shifting frontiers of world literature, aiming to chart its unexplored and neglected territories and provide—if not new, then at least renewed—insights and interest in the field. Focusing on the semi-periphery and drawing on the theoretical frameworks and methods of Fredric Jameson and Franco Moretti, Christinna Hazzard sets out to investigate the asynchronous development of global capitalism, seeking to demonstrate how this otherwise abstract “unevenness” (1) has taken concrete shape within–and has, in turn, reshaped–both literature and literary theory

Faraday rotation in graphene

We study magneto--optical properties of monolayer graphene by means of quantum field theory methods in the framework of the Dirac model. We reveal a good agreement between the Dirac model and a recent experiment on giant Faraday rotation in cyclotron resonance. We also predict other regimes when the effects are well pronounced. The general dependence of the Faraday rotation and absorption on various parameters of samples is revealed both for suspended and epitaxial graphene.Comment: 10 pp; v2: typos corrected and references added, v3, v4: small changes and more reference