251 research outputs found
Learning to Speak Indigenous Languages with Compassionate Listening Practices
No full textIndigenous language reclamation programs are considered an important way to reclaim indigenous identities and empower indigenous community members. Yet, without enough considerations for the participants, they could inhibit the language learning of those participants.The goal of this article is to empower Ryukyuan indigenous language learners using compassionate listening practices to support their learning. The author focuses on language reclamation activities targeting new speakers of the Yaeyaman language. The author analyzed interviews with new speakers (learners) of Yaeyaman and conducted videorecordings.This article identifies the following three issues: (1) linguistic purism, (2) linguistic in security, and (3) lack of ethical principles. These problems seem to hinder new speakers’ motivation to learn and speak their heritage languages. The author found that the emotions and feelings of new speakers are often overlooked and thus, suggests that new learners can be empowered by addressing their feelings through compassionate listen practices. Hence, we need to focus on the emotional support of language learners. The article proposes using compassionate listening practices to empower language learners who are embedded in social power struggles both from outside and inside the language community.https://doi.org/10.33063/diva-472014</p
In Situ Annealing of Boron-Doped Amorphous Silicon Layers Using APCVD Technology
No full textIn this work, we developed an in situ annealing process to crystallize boron-doped amorphous silicon [a-Si(p+)] layers deposited by atmospheric pressure chemical vapour deposition (APCVD) to form boron-doped polycrystalline silicon [poly-Si(p+)] layers. The influence of the temperature profiles during a-Si(p+) inline deposition on structural, electrical, and passivation properties was studied in detail. The results show that a-Si(p+) layers can be successfully crystallized by fine-tuning the temperature profiles in the postdeposition zones of the APCVD tool. It was observed that the hydrogenation processes during the fast firing play a significant role in enhancing the passivation quality as well as the electrical properties of the in situ annealed poly-Si(p+) layers. The sheet resistance (Rsh) and implied open circuit voltage (iVoc) of the best in situ annealed poly-Si(p+) layers were found to be comparable to the ones that were ex situ annealed in the tube furnace at 950 C for 30 min. The sheet resistance of 200 / could be obtained on 150-nm thick poly-Si(p+) layers with an (iVoc) of 718 mV. The use of this novel in situ annealing process to form poly-Si(p+) layers opens a new horizon for a lean process sequence without the additional high-temperature annealing step for fabricating solar cells concepts based on passivating contact.Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Photovoltaic Materials and Device
2006 Author Recognition Bibliography
No full texthttps://scholarworks.gvsu.edu/authorrecognition/1008/thumbnail.jp
Vitreous Wipe: A new test prototype
No full textRetinal detachment occurs when liquid slips behind the retina and does not allow the latter to lay flat on the posterior region of the eye. It alters the vision of the patient, hence requiring surgery to be corrected. In some cases, retinal detachment can occur after the retina has been treated for other pathologies. Indeed, more than 20% of highly myopic patients who have been treated for retinal diseases are subject to retinal detachment a few months after the surgery and are required to undergo a second surgery. It is believed that a membrane, also called Vitreous Cortex Remnants (VCR), that arises due to vitreoschisis,a retinal disease, is the reason for the re-detachment. VCR is often not dealt with during surgery because its removal is time-costly, the VCR is not well visible and instruments are not optimally adapted for removing VCR. The work aims to develop and experimentally evaluate new methods of removing VCR. For that purpose, a series of test prototypes were manufactured, and three surgeons assessed the efficiency of the prototypes for removing VCR from dissected pig’s eyes. Each eye was treated pre-experimentally according to a new model that tries to recreate vitreoschisis in a young porcine eye. The efficiency of each test prototype was assessed based on the force that the instrument tip exerted onthe pig’s retina, the number of strokes taken to remove the VCR completely, the tissue damage and the time used. Furthermore, the optimal tip length was determined based on the surgeons’ feedback. The results show that the force greatly depended on the stiffness of the instrument tip and that the most efficient prototype consisted of a PVA wipe cut to size 6x1x1 mm and a 0.1 mm diameter Nitinol wire. The prototype exerted a maximum force of 0.68 gr. The number of strokes was around 40, and the optimal tip length was just under 4.5 mm. While the experiments showed that it is a promising design, the tip needs to be remodeled to comply with the low stiffness needed and to be able to fit within a 23 gauge tube
“Russian trail” in Taiwan and beginning of Taiwan ethnology. Rev. of: Golovachev V. Ts. (2019). “Ekskursiia na Formozu”. Etnograficheskoe puteshestvie P. I. Ibisa. [“Excursion to Formosa”. The ethnographic trip by Paul Ibis] Moscow: “Ves’ Mir” Publishing House. 276 p.
No full textThe article was submitted on 30.09.2020.Рецензия посвящена рассмотрению монографии В. Ц. Головачёва, в которой автор исследует жизнь и научные труды российского морского офицера Пауля (Павла Ивановича) Ибиса (1852–1877), совершившего в начале 1875 г. путешествие по Тайваню, по итогам которого он опубликовал ценные научные сведения об острове. В книге собран и проанализирован большой объем архивных документов и исследований, которые напрямую или косвенно имеют отношение к судьбе П. И. Ибиса и его этнографической экспедиции на Тайвань.The review deals with book by Valentin Ts. Golovachev, where the author represents life-story and ethnographic studies of Russian naval officer Paul Ibis (1852–1877). P. Ibis was a participant in circumnavigation on the corvette “Askold” in 1872–1876 and at the beginning of 1875 made a journey in Taiwan, after his journey P. Ibis published valuable information about Taiwan and its inhabitants. The book analyzes all available archive documents and published materials that are relevant to biography of Paul Ibis and his ethnographic expedition in Taiwan
Operator equations and invariant subspaces
No full textBanach space operators acting on some fixed space X are considered. If two such operators A and B verify the condition A2=B2 and if A has nontrivial hyperinvariant subspaces, then B has nontrivial invariant subspaces. If A and B commute and satisfy a special type of functional equation, and if A is not a scalar multiple of the identity, the author proves that if A has nontrivial invariant subspaces, then so does B.</p
Analysis of Plasmodium falciparum diversity in natural infections by deep sequencing.
No full textMalaria elimination strategies require surveillance of the parasite population for genetic changes that demand a public health response, such as new forms of drug resistance. Here we describe methods for the large-scale analysis of genetic variation in Plasmodium falciparum by deep sequencing of parasite DNA obtained from the blood of patients with malaria, either directly or after short-term culture. Analysis of 86,158 exonic single nucleotide polymorphisms that passed genotyping quality control in 227 samples from Africa, Asia and Oceania provides genome-wide estimates of allele frequency distribution, population structure and linkage disequilibrium. By comparing the genetic diversity of individual infections with that of the local parasite population, we derive a metric of within-host diversity that is related to the level of inbreeding in the population. An open-access web application has been established for the exploration of regional differences in allele frequency and of highly differentiated loci in the P. falciparum genome
WildCLIP: Scene and animal attribute retrieval from camera trap data with domain-adapted vision-language models
No full text<p>#############</p>
<h1>WildCLIP: Scene and animal attribute retrieval from camera trap data with domain-adapted vision-language models</h1>
<p>#############</p>
<p>Authors: Valentin Gabeff, Marc Russwurm, Devis Tuia & Alexander Mathis</p>
<p>Affiliation: EPFL</p>
<p>Date: January, 2024</p>
<p>Link to the BiorXiv article: </p>
<p><a href="https://www.biorxiv.org/content/10.1101/2023.12.22.572990v1">https://www.biorxiv.org/content/10.1101/2023.12.22.572990v1</a></p>
<p>--------------------------------</p>
<p>WildCLIP is a fine-tuned CLIP model that allows to retrieve camera-trap events with natural language from the Snapshot Serengeti dataset. This project intends to demonstrate how vision-language models may assist the annotation process of camera-trap datasets.</p>
<p>Here we provide the processed Snapshot Serengeti data used to train and evaluate WildCLIP, along with two versions of WildCLIP (model weights).</p>
<p>Details on how to run these models can be found in the project <a href="https://github.com/amathislab/wildclip">github repository</a>.</p>
<h2>Provided data (images and attribute annotations): </h2>
<p>The data consists of 380 x 380 image crops corresponding to the MegaDetector output of Snapshot Serengeti with a confidence threshold above 0.7. We considered only camera trap images containing single individuals.</p>
<p>A description of the original data can be found on LILA <a href="https://lila.science/datasets/snapshot-serengeti">here</a>, released under the <a href="https://cdla.dev/permissive-1-0/" rel="nofollow">Community Data License Agreement (permissive variant)</a>.</p>
<p>We warmly thank the authors of LILA for making the MegaDetector outputs publicly available, as well as for structuring the dataset and facilitating its access.</p>
<h2>Adapted CLIP model (model weights): </h2>
<p>WildCLIP models provided:</p>
<ul>
<li><strong>WildCLIP_vitb16_t1.pth:</strong> CLIP model with the ViT-B/16 visual backbone trained on data with captions following template 1.</li>
<li><strong>WildCLIP_vitb16_t1t7_lwf.pth</strong>: CLIP model with the ViT-B/16 visual backbone trained on data with captions following templates 1 to 7, and with the additional VR-LwF loss.</li>
</ul>
<p>We also provide the CSV files containing the train / val / test splits. The train / test splits follow camera split from LILA (https://lila.science/datasets/snapshot-serengeti). The validation split is custom, and also at the camera level.</p>
<ul>
<li><strong>train_dataset_crops_single_animal_template_captions_T1T7_ID.csv</strong>: Train set with captions from templates 1 through 7 (column "all captions") or template 1 only (column "template 1")</li>
<li><strong>val_dataset_crops_single_animal_template_captions_T1T7_ID.csv</strong>: Validation set with captions from templates 1 through 7 (column "all captions") or template 1 only (column "template 1")</li>
<li><strong>test_dataset_crops_single_animal_template_captions_T1T8T10.csv</strong>: Test set with captions from templates 1, 8, 9 and 10 (columns "all captions")</li>
</ul>
<p>Details on how the models were generated can be found in the associated publication (<a href="https://doi.org/10.1101/2023.12.22.572990">preprint</a>).</p>
<h2>References: </h2>
<p>If you find our code, or weights, please cite:</p>
<pre>@article{gabeff2023wildclip,
title={WildCLIP: Scene and animal attribute retrieval from camera trap data with domain-adapted vision-language models},
author={Gabeff, Valentin and Russwurm, Marc and Tuia, Devis and Mathis, Alexander},
journal={bioRxiv},
pages={2023--12},
year={2023},
publisher={Cold Spring Harbor Laboratory}
}</pre>
<p>If you use the adapted Snapshot Serengeti data please also cite their article:</p>
<pre>@article{swanson2015snapshot,
title={Snapshot Serengeti, high-frequency annotated camera trap images of 40 mammalian species in an African savanna},
author={Swanson, Alexandra and Kosmala, Margaret and Lintott, Chris and Simpson, Robert and Smith, Arfon and Packer, Craig},
journal={Scientific data},
volume={2},
number={1},
pages={1--14},
year={2015},
publisher={Nature Publishing Group}
}</pre>
French Romance, Medieval Sweden and the Europeanisation of Culture
No full textTranslations of French romances into other vernaculars in the Middle Ages have sometimes been viewed as "less important" versions of prestigious sources, rather than in their place as part of a broader range of complex and wider European text traditions. This consideration of how French romance was translated, rewritten and interpreted in medieval Sweden focuses on the wider context. It examines four major texts which appear in both languages: Le Chevalier au lion and its Swedish translation Herr Ivan; Le Conte de Floire et Blancheflor and Flores och Blanzeflor; Valentin et Sansnom (the original French text has been lost, but the tale has survivedin the prose version Valentin et Orson) and the Swedish text Namnlös och Valentin; and Paris et Vienne and the fragmentary Swedish version Riddar Paris och jungfru Vienna. Each is analysed through the lens of different themes: female characters, children, animals and masculinity. The author argues that French romance made a major contribution to the Europeanisation of medieval culture, whilst also playing a key role in the formation of a national literature in Sweden.</p
French Romance, Medieval Sweden and the Europeanisation of Culture
No full textTranslations of French romances into other vernaculars in the Middle Ages have sometimes been viewed as "less important" versions of prestigious sources, rather than in their place as part of a broader range of complex and wider European text traditions, This consideration of how French romance was translated, rewritten and interpreted in medieval Sweden focuses on the wider context. It examines four major texts which appear in both languages: Le Chevalier au lion and its Swedish translation Herr Ivan; Le Conte de Floire et Blancheflor and Flores och Blanzeflor; Valentin et Sansnom (the original French text has been lost, but the tale has survived in the prose version Valentin et Orson) and the Swedish text Namnlös och Valentin; and Paris et Vienne and the fragmentary Swedish version Riddar Paris och jungfru Vienna. Each is analysed through the lens of different themes: female characters, children, animals and masculinity. The author argues that French romance made a major contribution to the Europeanisation of medieval culture, whilst also playing a key role in the formation of a national literature in Sweden.</p
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