485 research outputs found
Using acoustic monitoring to reveal nearly year‐round presence of humpback whales (Megaptera novaeangliae) in the waters of southern Iceland
No full textIcelandic waters are a crucial feeding ground for North Atlantic humpback whales, yet their occurrence in these subarctic waters remains underexplored. This study examined seasonal and diel patterns in humpback whale occurrence off the Vestmannaeyjar archipelago, southern Iceland, from June 2018 to May 2019, using automated acoustic detections from bottom-moored hydrophones. Vocalizations were manually categorized into social calls, song fragments, or songs. Further classification identified seven social sound types and 25 unique song units. Humpback whales were detected on 126 out of 329 recording days and were present in nearly all months except April and May. Social calls were most common in summer and fall, while song fragments and songs were prevalent in winter. No diel singing pattern was observed. These findings suggest southern Iceland serves as a vital habitat for humpback whales, acting as a feeding ground in summer and a migration stopover or overwintering site in winter. The study underscores the potential of acoustic monitoring to uncover important habitats year-round, especially when field observations are scarce, and emphasizes the need for ongoing monitoring of habitat use. Continued acoustic monitoring could provide further insights into the whales' behavioral patterns and preferences, essential for their conservation
A jurisprudência portuguesa dos tribunais superiores sobre exoneração do passivo restante (Breves notas sobre a admissão da exoneração e a cessão de rendimentos em particular)
No full textDesde 2004 que o Código da Insolvência e Recuperação de Empresas apresenta dois modelos insolvenciais para o tratamento da insolvência de pessoas singulares: por um lado, o modelo reeducativo, encarnado no plano de pagamentos; por outro o fresh start, consagrado com a exoneração do passivo restante. Esta última solução tem sido a opção da esmagadora maioria das pessoas singulares insolventes que, desde 2011, superam o número de processos de pessoas coletivas. Todavia, o sistema português tem sido criticado, não só pelo Memorando da Troika assinado entre o Estado Português, o BCE, a Comissão Europeia e o FMI, como pela própria doutrina e jurisprudência, pondo em evidência a necessidade de alteração do regime relativo às pessoas singulares. Aliás, tal exigência constava do referido Memorando, sem que o Governo português tenha adotado quaisquer medidas. Por outro lado, a recomendação da UE de março de 2014, relativa à recuperação e à insolvência, refere também a necessidade de redução do limite temporal de insolvências de pessoas singulares, nomeadamente no que concerne aos períodos de cessão dos rendimentos aos credores.
Nesta sede, verificamos que o regime português da insolvência, que conta já com mais de uma década de vigência, continua a apresentar fragilidades a nível da aplicação das normas, especialmente em dois pontos particulares – por um lado, a interpretação dos requisitos de acesso, que foi inicialmente feita de forma muito rígida pelos tribunais de 1.ª instância, impedindo o acesso à exoneração e, por outro, a concessão dos rendimentos necessários durante o período de cessão aos credores que, normalmente, desvaloriza as verdadeiras necessidades dos insolventes, dando um caráter punitivo, que o legislador não pretendeu atribuir, à insolvência. Este texto visa, pois, analisar brevemente a evolução jurisprudencial dos tribunais superiores na última década.info:eu-repo/semantics/publishedVersio
Some Thoughts on Urban Sketching
No full textThe CRP department recognizes the importance of sketching as graphic thinking and a means to learn from what we see. Filipa Antunes, a renowned urban sketcher and artist who recently exhibited at the Louvre in Paris, presents some thoughts on how she approaches sketching as both a rational and an emotional process. All illustrations in this article are by the author. Follow Filipa\u27s work at https://www.facebook.com/DesenhoFilipaOliveiraAntunes
Functional design and use of acoustic signals produced by killer whales (Orcinus orca)
No full textThis study aimed to investigate possible functions of the sounds produced by
herring-eating killer whales in the Northeast Atlantic.
In this study, I investigated the whistle repertoire of killer whales, which had
previously only been studied in British Columbia, where it appeared to be restricted to
the audible range. However, I show that high frequency whistles (> 17 kHz) were
detected in Northeast Atlantic populations but not in Northeast Pacific populations.
These results indicated substantial intraspecific variation in whistle production in
killer whales. Little variation was observed in high frequency whistles recorded from
three different sites in the Northeast Atlantic, suggesting this signal has a similar
function across locations.
The estimated active space of high frequency whistles and burst-pulse calls
suggested that these are short-range signals used for within-group communication.
Source levels of burst-pulse calls were lower than what was previously described in
British Columbia, which possibly reflected the fact that these sounds do not need to
propagate far because distances between group members are generally short. Calls,
high frequency whistles and herding calls produced at different depths did not appear
to suffer effects due to increased pressure, such as changing frequency or duration
characteristics.
Feeding appeared to take place below 10 m of depth, as suggested by the
localisation of depth of production of feeding-related sounds. These depths were
consistent with those at which tailslaps were produced in Dtags attached to individual
whales. Feeding periods were characterised by deep diving, increased sound
production and highly non-directional movement. These findings suggested that killer
whales in a herring spawning ground use a feeding strategy different from carousel
feeding used in herring overwintering grounds.
These findings showed that Northeast Atlantic killer whales have a different sound
repertoire to other populations, and suggested that they may employ different feeding
strategies depending on prey behaviour
"Ready for BioData Management?" Training Data Stewards for Life Sciences: DS Lab 1, hosted by BioData.pt | ELIXIR PT
No full textThis training session is part of "Ready for BioData Management?" Training Data Stewards for Life Sciences, hosted by BioData.pt | ELIXIR PT.
The first part, "Ready for BioData Management?" Training Data Stewards for Life Sciences: Intro Course, is available here.
Lecture
Author
Affiliation
Assignment 1
Filipa Pereira
FCT | FCCN
Showcase: Best practices on data management at IGC
Tiago Paixão
BioData.pt | IGC
Pitch on main difficulties when filling a Data Management Plan:
Participants presented the DMP prepared during assignment 1, explaining the associated project, datasets, data types, and main difficulties and suggestions when using BioData.pt DSW.
Trainees
Data Management Plans & Assignment Feedback
Filipa Pereira
FCT | FCCN
Pitch based on the developed draft for institutional DM policies:
Participants described the main topics of a draft of their institutional policies, prepared during assignment 1, and explained the main requirements, difficulties, and existing policies.
Trainees
Institutional Policies on RDM & Exercise:
Group exercise: Responsibility of different stakeholders
Filipa Pereira
FCT | FCCN
LEARN Project Survey: Compare results with RDM Forum WG
Filipa Pereira
FCT | FCC
Killer whale tossing a salmon in the air.
No full textObserved in Vestmannaeyjar (S Iceland) on 15 July 2015 (photograph by F. Samarra).</p
Recenzja: Trzy spojrzenia. O książce Nataszy Korczarowskiej-Różyckiej Inne spojrzenie...Wyobrażenia historii w filmach Wojciecha Jerzego Hasa, Jana Jakuba Kolskiego, Filipa Bajona i Anny Jadowskiej
No full textTHREE LOOKS. ON NATASZA KORCZAROWSKA-RÓŻYCKA’S BOOK INNE SPOJRZENIE... WYOBRAŻENIA HISTORII W FILMACH WOJCIECHA JERZEGO HASA, JANA JAKUBA KOLSKIEGO, FILIPA BAJONA I ANNY JADOWSKIEJThe article is a review of Natasza Korczarowska-Różycka’s last book Inne spojrzenie... Wyobrażenia historii w fi lmach Wojciecha Jerzego Hasa, Jana Jakuba Kolskiego, Filipa Bajona i Anny Jadowskiej Łódź 2013. According to the reviewer, the book is a bold attempt to combine film analysis with social issues. Korczarowska-Różycka proposed her own perspective of film reading on the intersection of close film analysis, sociological attitude and historical reflections about collective memory. She sees movie as a document of some socially established historical points of view or images, but also as a dynamic force, that is transforming and recreating these images. Her selection of directors and applied methodological basis allow her to avoid clichéd reflections on genre of historical cinema, but also lay her work open to the charge of certain arbitrariness. The author tries to not only present Korczarowska-Różycka’s book, but also bring out its theoretical background and place it in the broader context of memory studies.Translated by Aleksandra IdczakTHREE LOOKS. ON NATASZA KORCZAROWSKA-RÓŻYCKA’S BOOK INNE SPOJRZENIE... WYOBRAŻENIA HISTORII W FILMACH WOJCIECHA JERZEGO HASA, JANA JAKUBA KOLSKIEGO, FILIPA BAJONA I ANNY JADOWSKIEJThe article is a review of Natasza Korczarowska-Różycka’s last book Inne spojrzenie... Wyobrażenia historii w fi lmach Wojciecha Jerzego Hasa, Jana Jakuba Kolskiego, Filipa Bajona i Anny Jadowskiej Łódź 2013. According to the reviewer, the book is a bold attempt to combine film analysis with social issues. Korczarowska-Różycka proposed her own perspective of film reading on the intersection of close film analysis, sociological attitude and historical reflections about collective memory. She sees movie as a document of some socially established historical points of view or images, but also as a dynamic force, that is transforming and recreating these images. Her selection of directors and applied methodological basis allow her to avoid clichéd reflections on genre of historical cinema, but also lay her work open to the charge of certain arbitrariness. The author tries to not only present Korczarowska-Różycka’s book, but also bring out its theoretical background and place it in the broader context of memory studies.Translated by Aleksandra Idcza
Social associations, relatedness and population genetic structure of killer whales (Orcinus orca) in Iceland
No full textIn killer whales, fish- versus mammal-eating ecological differences are regarded as key ecological drivers of sociality, but the potential influence of specific target prey characteristics remains unclear. This thesis aimed to study the social patterns and dynamics of Icelandic killer whales feeding upon herring, a schooling prey that undergoes frequent changes in distribution and school size.
I used a multi-disciplinary approach combining photo-identification and genetic data to understand the sociality, role of kinship and genetic differentiation within the population. Individuals sighted in summer-spawning and overwintering herring grounds during at least five separate days (N = 198) were considered associated if photographed within 20 seconds of each other. Photo-identified individuals were genotyped (N = 61) for 22 microsatellites and mitochondrial DNA control region (611 bp). The population had weak but non-random associations, fission-fusion dynamics at the individual level and seasonal patterns of preferred associations. The society was significantly structured but not hierarchically. Social clusters were highly diverse and, whilst kinship was correlated with association, it was not a prerequisite for social membership. Indeed, some cluster members had different mitochondrial haplotypes, representing separate maternal lineages. Individuals with different observed movement patterns were genetically distinct, but associated with each other. No sex-biased dispersal or inbreeding was detected.
This study revealed that the Icelandic population has a multilevel society without clear hierarchical tiers or nested coherent social units, different from the well-studied salmon- (‘residents’) and seal-eating populations in the Northeast Pacific. In the Icelandic population kinship drives social structure less strongly than in residents. These findings suggest effective foraging on schooling herring in seasonal grounds promotes the formation of flexible social groupings which can include non-kin. Killer whale sociality may be strongly influenced by local ecological context, such as the characteristics of the specific target prey (e.g., predictability, biomass, and density) and subsequent foraging strategies of the population
Lactate-coated polyurea-siRNA dendriplex: a gene therapy-directed and metabolism-based strategy to impair glioblastoma (GBM) (Cancer Gene Therapy, (2025), 32, 6, (690-705), 10.1038/s41417-025-00906-8)
No full textPublisher Copyright: © The Author(s) 2025.Correction to: Cancer Gene Therapyhttps://doi.org/10.1038/s41417-025-00906-8, published online 27 April 2025 The article 'Lactate-coated polyurea-siRNA dendriplex: a gene therapy directed and metabolism-based strategy to impair glioblastoma (GBM)', written by Filipa Martins, Renata Arada, Hélio Barros, Paulo Matos, José Ramalho, Valentín Ceña, Vasco D. B. Bonifácio, Luís G. Gonçalves and Jacinta Serpa, was originally published under exclusive license to The Author(s), under exclusive licence to Springer Nature America, Inc. 2025.publishersversioninpres
- …
