Beam normal spin asymmetry for the ep→eΔ(1232)e p \to e \Delta(1232) process

We calculate the single spin asymmetry for the $e p \to e \Delta(1232)$ process, for an electron beam polarized normal to the scattering plane. Such single spin asymmetries vanish in the one-photon exchange approximation, and are directly proportional to the absorptive part of a two-photon exchange amplitude. As the intermediate state in such two-photon exchange process is on its mass shell, the asymmetry allows one to access for the first time the on-shell $\Delta \to \Delta$ as well as $N^\ast \to \Delta$ electromagnetic transitions. We present the general formalism to describe the $e p \to e \Delta$ beam normal spin asymmetry, and provide a numerical estimate of its value using the nucleon, $\Delta(1232)$, $S_{11}(1535)$, and $D_{13}(1520)$ intermediate states. We compare our results with the first data from the Qweak@JLab experiment and give predictions for the A4@MAMI experiment.Comment: 18 pages, 9 figure

Enhancing scientific communication skills: a real-world simulation in a tertiary-level life science class using e-learning technology in biomedical literature perception, reflective review writing on a clinical issue, and self and peer assessments

This educational study aimed to explore the feasibility and acceptance of a literacy exercise adopted from the realworld of scientific publishing in a cell and tissue biology course. For that purpose, a tertiary-level multimodality science course, which integrated a blended learning faculty and student lectures, journal club, and wet laboratory sessions including a research project as well as examinations, was complemented by essaywriting of a review and peerreviewing of five manuscripts. All tasks contributed to the final course mark. Special emphasis was laid on the usability of different E-Learning applications for scientific writing and teacher- and peerassessment procedures. Further, potential influences of student characteristics on their peerand self-assessments as well as their acceptance of the feedback from their peers were evaluated. Seventy-five undergraduate students from different Bachelor programs were included in the study. Plagiarism check and double-blind assessments of the essays were performed using “Turnitin.com.” Students self- assessed their paper and received feedback from five peers and the teacher. Peer assessment was more severe than the teacher- or self-assessment, and the peer mark correlated best with the final course mark. Students with better marks assessed more generously, and there had moderate tendencies for influences of gender and background on peer feedback behavior. The students perceived the writing and assessment exercises, especially being peer-assessed, as demanding, but rewarding and a great learning experience. The additional tasks were feasible using E-Learning technology, which should foster future biomedical courses to train writing skills and the ability to cope with different roles in the scientific community

La chimica dei nanocomposti e la loro applicazione al restauro dei manoscritti

Cellulose-based artifacts are susceptible to fast degradation due to the presence of detrimental components and to the action of environmental pollutants. As a result, the acidity of pristine material increases, promoting the acid-catalysed depolymerisation of cellulose that alters the mechanical properties of paper. In this paper, the use of innovative dispersions of alkaline earth metal hydroxide nanoparticles will be discussed as a method of counteracting the degradation of paper. The application of the most recent formulations of nanoparticles dispersions for the deacidification of artworks will be highlighted. Finally, the usage of innovative gel formulations for the cleaning of cellulose-based artworks will be discussed

The Evolution of Woman. George Eliot’s“Woman in France: Madame de Sablé”

George Eliot’s engagement with gender ideology has often been discussed in relation to her novels even though she expresses her views on the so-called “woman question”much earlier, in her journalistic work. She was a contributor to the radical Westminster Review and, from 1852–54, also its editor. The various readings of one of her essays “Woman in France: Madame de Sablé”, published anonymously in 1854, reflect the very different ways in which Eliot’s position regarding the woman question has been interpreted. For Shirley Foster, who compares her to the notorious antifeminist Sarah Ellis, the essay documents her antifeminism. Other critics, who mention this rarely-analysed essay, use it to illustrate Eliot’s feminist credo or, like Frederick R. Karl, find the text a contradictory one. The central claim of this essay is that in “Woman in France” Eliot makes a clearly feminist statement, expressed in a very subtle and innovative way. My argument will demonstrate that the variety of readings is due to the fact that the references to French women and French writers have often been overlooked

The Evolution of Woman. George Eliot’s“Woman in France: Madame de Sablé”

George Eliot’s engagement with gender ideology has often been discussed in relation to her novels even though she expresses her views on the so-called “woman question”much earlier, in her journalistic work. She was a contributor to the radical Westminster Review and, from 1852–54, also its editor. The various readings of one of her essays “Woman in France: Madame de Sablé”, published anonymously in 1854, reflect the very different ways in which Eliot’s position regarding the woman question has been interpreted. For Shirley Foster, who compares her to the notorious antifeminist Sarah Ellis, the essay documents her antifeminism. Other critics, who mention this rarely-analysed essay, use it to illustrate Eliot’s feminist credo or, like Frederick R. Karl, find the text a contradictory one. The central claim of this essay is that in “Woman in France” Eliot makes a clearly feminist statement, expressed in a very subtle and innovative way. My argument will demonstrate that the variety of readings is due to the fact that the references to French women and French writers have often been overlooked

Enhancing Scientific Communication Skills: a Real-World Simulation in a Tertiary-Level Life Science Class Using E-Learning Technology in Biomedical Literature Perception, Reflective Review Writing on a Clinical Issue, and Self and Peer Assessments

This educational study aimed to explore the feasibility and acceptance of a literacy exercise adopted from the realworld of scientific publishing in a cell and tissue biology course. For that purpose, a tertiary-level multimodality science course, which integrated a blended learning faculty and student lectures, journal club, and wet laboratory sessions including a research project as well as examinations, was complemented by essaywriting of a review and peerreviewing of five manuscripts. All tasks contributed to the final course mark. Special emphasis was laid on the usability of different E-Learning applications for scientific writing and teacher- and peerassessment procedures. Further, potential influences of student characteristics on their peer- and self-assessments as well as their acceptance of the feedback from their peers were evaluated. Seventy-five undergraduate students from different Bachelor programs were included in the study. Plagiarism check and double-blind assessments of the essays were performed using “Turnitin.com.” Students self-assessed their paper and received feedback from five peers and the teacher. Peer assessment was more severe than the teacher- or self-assessment, and the peer mark correlated best with the final course mark. Students with better marks assessed more generously, and there had moderate tendencies for influences of gender and background on peer feedback behavior. The students perceived the writing and assessment exercises, especially being peer-assessed, as demanding, but rewarding and a great learning experience. The additional tasks were feasible using E-Learning technology, which should foster future biomedical courses to train writing skills and the ability to cope with different roles in the scientific community

Miscellany

Le numéro 73 des Cahiers victoriens et édouardiens rassemble 10 contributions diverses portant sur des sujets variés comme le Cardinal Manning, Emily Brontë, George Eliot, Robert Browning, Whistler, Ford Madox Brown, Arthur Conan Doyle, Laurence Housman, les parodies de dandies au music-hall, et Oscar Wilde. This issue of Cahiers victoriens et édouardiens gathers 10 contributions on subjects as varied as Cardinal Manning, Emily Brontë, George Eliot, Robert Browning, Whistler, Ford Madox Brown, Arthur Conan Doyle, Laurence Housman, parodies of dandies in music-hall acts, and Oscar Wilde

Association of macular pigment optical density with retinal layer thicknesses in eyes with and without manifest primary open-angle glaucoma

Objective To investigate associations between baseline macular pigment optical density (MPOD) and retinal layer thicknesses in eyes with and without manifest primary open-angle glaucoma (POAG) in the Carotenoids in Age-Related Eye Disease Study 2 (CAREDS2).Methods and analysis MPOD was measured at CAREDS baseline (2001–2004) via heterochromatic flicker photometry (0.5° from foveal centre). Peripapillary retinal nerve fibre layer (RNFL), macular ganglion cell complex (GCC), ganglion cell layer (GCL), inner plexiform layer (IPL), and RNFL thicknesses were measured at CAREDS2 (2016–2019) via spectral-domain optical coherence tomography. Associations between MPOD and retinal thickness were assessed using multivariable linear regression.Results Among 742 eyes (379 participants), manifest POAG was identified in 50 eyes (32 participants). In eyes without manifest POAG, MPOD was positively associated with macular GCC, GCL and IPL thicknesses in the central subfield (P-trend ≤0.01), but not the inner or outer subfields. Among eyes with manifest POAG, MPOD was positively associated with macular GCC, GCL, IPL and RNFL in the central subfield (P-trend ≤0.03), but not the inner or outer subfields, and was positively associated with peripapillary RNFL thickness in the superior and temporal quadrants (P-trend≤0.006).Conclusion We observed a positive association between MPOD and central subfield GCC thickness 15 years later. MPOD was positively associated with peripapillary RNFL superior and temporal quadrant thicknesses among eyes with manifest POAG. Our results linking low MPOD to retinal layers that are structural indicators of early glaucoma provide further evidence that carotenoids may be protective against manifest POAG