1,168 research outputs found
Data from "Fine-scale movement data reveal primarily surface foraging and nocturnal flight activity in the endangered Bermuda petrel"
No full textThis archive includes data files associated with the paper "Fine-scale movement data reveal primarily surface foraging and nocturnal flight activity in the endangered Bermuda petrel" in Ecology and Evolution.The file "BEPE_2023_deployments.csv" contains metadata about each deployment. Each deployment has a unique identifier (dep_id) based off of the tag id, bird id and start date. The file "BEPE_acc_behaviour_classified.csv" includes the accelerometer derived metrics and behavioural classifications described in the paper. The "raw_data" folder contains files for each individual deployment named after the dep_id field. Biologging data have been trimmed to only include data collected while devices were on birds. All datetime data have been standardized to UTC. Data fields have been standardized across the three device types used. Each biologging file includes columns for all four data types recorded (GPS, TDR, ACC, MAG) to facilitate combining data across logger types for analysis.These data are from tracking Bermuda Petrels (BEPE) at Nonsuch Island during the incubation period in 2023 During the 2023 field season, there were 25 deployments of biologgers on BEPE, of which 18 deployments were successful. Three logger types were used that recorded GPS, TDR, accelerometer (ACC), and/or magnetometer (MAG) data: Axy5 (Technosmart - TDR, ACC, MAG), AxyTrek (Technomsart - GPS, TDR, MAG), and Nano Fix-GEO (PathTrack - GPS).Peer reviewe
First person - Carina Lund
No full textFirst Person is a series of interviews with the first authors of a selection of papers published in Disease Models & Mechanisms (DMM), helping early-career researchers promote themselves alongside their papers. Carina Lund is first author on 'Characterization of the human GnRH neuron developmental transcriptome using a GNRH1-TdTomato reporter line in human pluripotent stem cells', published in DMM. Carina is a PhD student in the lab of Taneli Raivio at the University of Helsinki, Finland, investigating neuronal differentiation from human pluripotent stem cells.Non peer reviewe
Fine-Scale Movement Data Reveal Primarily Surface Foraging and Nocturnal Flight Activity in the Endangered Bermuda Petrel
No full textForaging behaviour plays a fundamental role in animal fitness and population dynamics., particularly for central-place foragers like breeding seabirds. Among Procellariiform seabirds, petrels exhibit a wide range of foraging strategies finely tuned to the patchy and unpredictable distribution of resources. The extent and remote nature of their foraging grounds makes direct observation of foraging behaviour impractical, thereby requiring the use of remote tracking technologies. We deployed miniaturised multi-sensor biologgers and collected fine scale movement data to investigate the at-sea behaviours of the Bermuda petrel Pterodroma cahow, a poorly studied and highly threatened gadfly petrel, specialised on mesopelagic prey. GPS-tracking data revealed extensive foraging trips (mean ± SD: 1207 ± 305 km), in consistent directions, over remote oceanic regions. Time-depth-recorders provided new insights into Bermuda petrel feeding techniques suggesting that the meso-bathypelagic prey targeted by petrels must be available in the very upper layer of the water surface, given their very limited diving activity (maximum dive depth of 1.57 m). We identified three flight-related and three water-associated behaviours using supervised classification approach to classify behaviour from tri-axial acceleromtetry. Flying behaviours reflected the expected dynamic soaring flight strategy of Procellariiformes; individuals spent more than 75% of their time in flight (dynamic soaring and flap-gliding) with dynamic soaring flight being the most common behaviour under all conditions. The behaviour classified as 'Intensive flight' was infrequently observed but could indicate aerial dipping, a characteristic foraging technique of Pterodroma species. The remaining time was spent in three water behaviours: active, inactive and intensive, with the latter being less common but thought to reflect scavenging and prey seizing. Flight increased during dusk and in the night, highlighting greater flight activity during night compared to the day, while water behaviours were more common during the day. While some of our findings may require further validation to confirm their relevance to foraging behaviour, our work offers new and valuable insights to consider when assessing the ecological needs of this endangered species and its potential vulnerability to offshore anthropogenic activities.This work was supported by Fundação para a Ciência e a Tecnologia (FCT), Portugal, MARE (UIDB/04292/2020 and UIDP/04292/2020). Environment and Climate Change Canada, GCXE24C379.Peer reviewe
Influence of surface properties on the bondability of electrical steel sheets
No full textAuthor Carina Kern, BScMasterarbeit Universität Linz 2022Arbeit nach Ablauf der Sperre auf den öffentlichen PCs in den Bibliotheken der JKU+Medizin abrufba
Influence of surface properties on the bondability of electrical steel sheets
No full textAuthor Carina Kern, BScMasterarbeit Universität Linz 2022Arbeit nach Ablauf der Sperre auf den öffentlichen PCs in den Bibliotheken der JKU+Medizin abrufba
Probing ISM Structure in Trumpler 14 and Carina i Using the Stratospheric Terahertz Observatory 2
No full textWe present observations of the Trumpler 14/Carina I region carried out using the Stratospheric Terahertz Observatory 2. The Trumpler 14/Carina I region is in the western part of the Carina Nebula Complex (CNC), which is one of the most extreme star-forming regions in the Milky Way. We observed Trumpler 14/Carina I in the 158 μm transition of [C ii] with a spatial resolution of 48″ and a velocity resolution of 0.17 km s-1. The observations cover a 0.25 by 0.28 area with central position l = 297.34, b = -0.60. The kinematics show that bright [C ii] structures are spatially and spectrally correlated with the surfaces of CO clouds, tracing the photodissociation region (PDR) and ionization front of each molecular cloud. Along seven lines of sight (LOSs) that traverse Tr 14 into the dark ridge to the southwest, we find that the [C ii] luminosity from the H ii region is 3.7 times that from the PDR. In the same LOS, we find in the PDRs an average ratio of 1 : 4.1 : 5.6 for the mass in atomic gas : dark CO gas : molecular gas traced by CO. Comparing multiple gas tracers, including H i 21 cm, [C ii], CO, and radio recombination lines, we find that the H ii regions of the CNC are well described as H ii regions with one side freely expanding toward us, consistent with the Champagne model of ionized gas evolution. The dispersal of the GMC in this region is dominated by EUV photoevaporation; the dispersal timescale is 20-30 Myr.QN/Gao La
Dino Carina. Istruzione, lavoro, studi comparativi. I
No full textDino Carina (1836-1872), studioso toscano di economia e di politica scolastica, a partire dagli anni Sessanta dell’Ottocento compie diversi “viaggi pedagogici” in Francia, Belgio, Germania e Inghilterra. È autore di diversi lavori riguardanti l’educazione comparata: Sulla istruzione primaria e industriale della Francia, dell'Inghilterra, del Belgio (1861), Della istruzione primaria e industriale considerata nelle sue relazioni colla pubblica economia. Nuovi studi comparativi (1868), Dell’ozio in Italia (1870). Ciò nonostante, è un autore ancora poco conosciuto e studiato.
In questo articolo si prende in considerazione il suo contributo al processo di sviluppo degli studi comparativi in educazione in Italia negli anni dell’unificazione nazionale. In particolare, si focalizza l’attenzione sul suo interesse per il contesto socio-politico-culturale nel quale nascono e si modificano i sistemi d’istruzione e per i diversi fattori – e, anzitutto, quello economico-produttivo – che rivestono un ruolo chiave nell’organizzazione dei sistemi d’istruzione.Dino Carina (1836-1872) is a Tuscan scholar of economics and of school policy; starting from the Sixties of the Nineteenth Century, he performs several journeys made in order to study the educational situations existing outside Italy (France, Belgium, Germany and England). He’s the author of several comparative education studies (e.g. Sulla istruzione primaria e industriale della Francia, dell'Inghilterra, del Belgio, 1861; Della istruzione primaria e industriale considerata nelle sue relazioni colla pubblica economia. Nuovi studi comparative, 1868; Dell’ozio in Italia, 1870). Nevertheless, Dino Carina is an author still little known and studied.
This paper considers his contribution to the process of development of comparative education studies in Italy in the years of the national unification. In particular, attention is focused on his interest in the socio-political and cultural environment in which education systems are born and modified and to the various factors – first of all the economic factor-productive – which play a key role in the organization of education systems
Dino Carina. Istruzione, lavoro, studi comparativi. II
No full textDino Carina (1836-1872), studioso toscano di economia e di politica scolastica, a partire dagli anni Sessanta dell’Ottocento compie diversi “viaggi pedagogici” in Francia, Belgio, Germania e Inghilterra. È autore di diversi lavori riguardanti l’educazione comparata: Sulla istruzione primaria e industriale della Francia, dell'Inghilterra, del Belgio (1861), Della istruzione primaria e industriale considerata nelle sue relazioni colla pubblica economia. Nuovi studi comparativi (1868), Dell’ozio in Italia (1870). Ciò nonostante, è un autore ancora poco conosciuto e studiato. In questo articolo si prende in considerazione il suo contributo al processo di sviluppo degli studi comparativi in educazione in Italia negli anni dell’unificazione nazionale. In particolare, si focalizza l’attenzione sul suo interesse per il contesto socio-politico-culturale nel quale nascono e si modificano i sistemi d’istruzione e per i diversi fattori – e, anzitutto, quello economico-produttivo – che rivestono un ruolo chiave nell’organizzazione dei sistemi d’istruzione.Dino Carina (1836-1872) is a Tuscan scholar of economics and of school policy; starting from the Sixties of the Nineteenth Century, he performs several journeys made in order to study the educational situations existing outside Italy (France, Belgium, Germany and England). He’s the author of several comparative education studies (e.g. Sulla istruzione primaria e industriale della Francia, dell'Inghilterra, del Belgio, 1861; Della istruzione primaria e industriale considerata nelle sue relazioni colla pubblica economia. Nuovi studi comparative, 1868; Dell’ozio in Italia, 1870). Nevertheless, Dino Carina is an author still little known and studied. This paper considers his contribution to the process of development of comparative education studies in Italy in the years of the national unification. In particular, attention is focused on his interest in the socio-political and cultural environment in which education systems are born and modified and to the various factors – first of all the economic factor-productive – which play a key role in the organization of education systems
Fredrika Bremer Grannarne : utgiven med inledning och kommentarer av Carina och Lars Burman
No full textDuring the period 1828-1862 the Swedish author Fredrika Bremer (1801-1865) published a large number of novels and travel journals. The novel Grannarne (The Neighbours), publ. 1837, is among the most successful of these. It was widely translated, and at least fifty foreign editions have been published. In the 1840's and 1850's, when the author reached the peak of her international renown, she was often referred to as "The author of The Neighbours". The novel was particularly popular in the English-speaking world, and it had some importance in the development of the Victorian Novel.This edition presents the first critical text, and the preface charters the themes and motifs of the novel, the process of its writing and printing, and its reception in Sweden.</p
A polarimetric study of ETA carinae and the carina nebula
No full textThis thesis contains an account of some of the work undertaken by the author while a member of the Astronomy Group at the University of Durham. The work of the group involves the measurement and interpretation of the linear polarization in nebular astronomical objects. The initial chapters briefly describe the theory of polarized light and the. method of observing linear polarization, along with an indication of the techniques involved when analyzing the data. Chapter three is a review of recent work on interstellar grains with a summary of the present ideas on the nature of the grains. The next chapter summarizes the observations of the peculiar object Carinae and in the following chapter, a polarization map of the nebulosity around Carinae is presented and a model determined to account for the observed linear polarization. The model involves the assumption of a bipolar type geometry for η Carinae with a size distribution of silicate grains of the form and it is found that grains of .15µ contribute most to the scattering at optical wavelengths. Using the same distribution it is found that maximum emission at l0µ can be expected from grains of size .lµ .The final chapter contains observations of the linear polarization in the Carina Nebula in the region of n Carinae, and the results are interpreted in the light of present ideas concerning n Carinae and its relationship with the Carinae Nebula. It seems that the light from η Carinae is being reflected by clouds in the Carina Nebula
- …
