Mediated Field Experiences During Worldwide Pandemic: Adjusting Pedagogies to a Changing Climate

This paper explores the use of a mediated field experience (MFE) for teacher candidates in a middle school setting a small laboratory school. This work focuses on adjustments made for the MFE to function in an online environment during remote instruction caused by a worldwide pandemic. Teacher candidates completed a learning cycle focused on experiencing mathematics as a learner, planning for mathematics instruction, implementing mathematics instruction, and analyzing teaching episodes alongside a mathematics teacher who is also the mathematics teacher educator for a methods course. Teacher candidates reflected on this experience positively, noting the benefits of learning how to teach effectively online in a safe and supportive environment. This paper will share the highlights and challenges for the mathematics teacher educator regarding the shifting of pedagogy to meet the current educational climate

Preparing Middle Grades Candidates for edTPA in Uncertain Times

Teacher candidates in North Carolina must earn a passing score on the edTPA assessment to get certified. The middle grades education program at Western Carolina University integrates aspects of the edTPA assessment throughout pre-student teaching coursework and field experiences to prepare candidates for this high-stakes assessment. Some of the edTPA practice assignments serve as key assessments that help the middle grades program faculty evaluate the program and make decisions about curriculum. The pivot to remote and blended learning formats on campus and in partner middle level schools affected the implementation of the edTPA-related assignments. The authors share some of the challenges of implementing edTPA practice portfolios during the pandemic as well as insights gleaned from their assessment of the data

Surface disorder production during plasma immersion implantation and high energy ion implantation

High-depth-resolution Rutherford Backscattering Spectrometry (RBS) combined with channeling technique was used to analyze the surface layer formed during plasma immersion ion implantation (PIII) of single crystal silicon substrates. Single wavelength multiple angle of incidence ellipsometry (MAIE) was applied to estimate the thickness of the surface layer. The thickness of the disordered layer is much higher than the projected range of P ions and it is comparable with that of protons.\ud \ud Another example of surface damage investigation is the analysis of anomalous surface disorder created by 900 keV and 1.4 MeV Xe implantation in 100 silicon. For the 900 keV implants the surface damage was also characterized with spectroellipsometry (SE). Evaluation of ellipsometric data yields thickness values for surface damage that are in reasonable agreement with those obtained by RBS

Tracking sand-fairways through a deformed turbidite system : the Numidian (Miocene) of Central Sicily, Italy

The research presented here is funded by BG Group in partnership with CNPq-Brazil (National Council for Scientific and Technological Development). Rosanna Maniscalco acknowledges a FIR 2014 grant awarded from the University of Catania. We thank Christian Haug Eide, David Hodgson and Enrico Tavarnelli for constructive and thorough reviews on an earlier draft that have greatly improved this contribution.Peer reviewedPublisher PD

Syn-kinematic sedimentary systems as constraints on the structural response of thrust belts : re-examining the structural style of the Maghrebian thrust belt of Eastern Sicily

We are indebted to the generosity of the late Fabio Lentini. While he may not have agreed with our findings, he nevertheless openly and cheerfully shared his mapping and insight of Sicilian geology. This work also builds upon many years’ collaboration between us, initiated by the late Mario Grasso (the Pantagruelian Master of Speranza et alii, 2018). The mapping of Lentini, Grasso and colleagues represents a remarkable resource for future geologists. We dedicate this contribution to their memory. We thank Sveva Corrado and an anonymous referee for constructive comments on an earlier draft of this paper. Butler’s Sicilian field research has been variously funded by the UK’s Natural Environment Research Council and the Royal Society. Maniscalco acknowledges “Fondi per la Ricerca di AteneoPiano per la Ricerca 2016/2018”. Pinter was supported through a PhD grant funded by the BG Group (now Shell) and Brazil’s National Council for Scientific and Technological Development (CNPq).Peer reviewedPublisher PD

Deep-water sand-fairway mapping as a tool for tectonic restoration : decoding Miocene central Mediterranean palaeogeography using the Numidian turbidites of southern Italy

The research presented here was funded by BG-Shell in partnership with CNPq-Brazil (National Council for Scientific and Technological Development). Rosanna Maniscalco acknowledges a Piano Triennale della Ricerca 2016-2018 grant awarded from the University of Catania.Peer reviewedPublisher PD

The Nma1 protein promotes long distance transport mediated by early endosomes in Ustilago maydis

Early endosomes (EEs) are part of the endocytic transport pathway and resemble the earliest class of transport vesicles between the internalization of extracellular material, their cellular distribution or vacuolar degradation. In filamentous fungi, EEs fulfill important functions in long distance transport of cargoes as mRNAs, ribosomes, and peroxisomes. Formation and maturation of early endosomes is controlled by the specific membrane-bound Rab-GTPase Rab5 and tethering complexes as CORVET (class C core vacuole/endosome tethering). In the basidiomycete Ustilago maydis, Rab5a is the prominent GTPase to recruit CORVET to EEs; in rab5a deletion strains, this function is maintained by the second EE-associated GTPase Rab5b. The tethering- and core-subunits of CORVET are essential, buttressing a central role for EE transport in U. maydis. The function of EEs in long distance transport is supported by the Nma1 protein that interacts with the Vps3 subunit of CORVET. The interaction stabilizes the binding of Vps3 to the CORVET core complex that is recruited to Rab5a via Vps8. Deletion of nma1 leads to a significantly reduced number of EEs, and an increased conversion rate of EEs to late endosomes. Thus, Nma1 modulates the lifespan of EEs to ensure their availability for the various long distance transport processes