1. A framework for evaluating the performance of SMLM cluster analysis algorithmsDaniel J. Nieves, Jeremy A. Pike, Florian Levet, David J. Williamson, Mohammed Baragilly, Sandra Oloketuyi, Ario De Marco, Juliette Griffié, Daniel Sage, Edward A. K. Cohen, 2023, izvirni znanstveni članek Ključne besede: super resolution microscopy, functionalized nanobodies
Objavljeno v RUNG: 22.02.2023; Ogledov: 240; Prenosov: 0
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2. Observation of the Cumbre Vieja volcano plume above the Observatorio del Roque de los Muchachos with the Barcelona Raman LIDARMiha Živec, Otger Ballester, Oscar Blanch, Juan Boix, Paolo G. Calisse, Anna Campoy Ordaz, Michele Doro, Lluis Font, Rafael Garcia, Markus Gaug, Roger Grau, Manel Martinez, David Roman, Samo Stanič, Santiago Ubach Ramírez, Marko Zavrtanik, 2022, objavljeni znanstveni prispevek na konferenci Ključne besede: lidar, remote sensing, CTA, CTAO, Cumbre Vieja, atmospheric monitoring, volcano
Objavljeno v RUNG: 13.02.2023; Ogledov: 231; Prenosov: 10
 Celotno besedilo (3,49 MB) |
3. Classification of gamma-ray targets for velocity-dependent and subhalo-boosted dark-matter annihilationThomas Lacroix, Gaetán Facchinetti, Judit Pérez-Romero, Martin Stref, Julien Lavalle, David Maurin, Miguel Sánchez-Conde, izvirni znanstveni članek Opis: Gamma-ray observations have long been used to constrain the properties of dark matter (DM), with a strong focus on weakly interacting massive particles annihilating through velocity-independent processes. However, in the absence of clear-cut observational evidence for the simplest candidates, the interest of the community in more complex DM scenarios involving a velocity-dependent cross-section has been growing steadily over the past few years. We present the first systematic study of velocity-dependent DM annihilation (in particular p-wave annihilation and Sommerfeld enhancement) in a variety of astrophysical objects, not only including the well-studied Milky Way dwarf satellite galaxies, but nearby dwarf irregular galaxies and local galaxy clusters as well. Particular attention is given to the interplay between velocity dependence and DM halo substructure. Uncertainties related to halo mass, phase-space and substructure modelling are also discussed in this velocity-dependent context. We show that, for s-wave annihilation, extremely large subhalo boost factors are to be expected, up to 10^11 in clusters and up to 10^6–10^7 in dwarf galaxies where subhalos are usually assumed not to play an important role. Boost factors for p-wave annihilation are smaller but can still reach 10^3 in clusters. The angular extension of the DM signal is also significantly impacted, with e.g. the cluster typical emission radius increasing by a factor of order 10 in the s-wave case. We also compute the signal contrast of the objects in our sample with respect to annihilation happening in the Milky Way halo. Overall, we find that the hierarchy between the brightest considered targets depends on the specific details of the assumed particle-physics model.
Ključne besede: dark matter theory, dwarf galaxies, galaxy clusters, gamma-ray theory
Objavljeno v RUNG: 27.01.2023; Ogledov: 350; Prenosov: 0
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4. The molecular toolbox of ectomycorrhizal-driven phosphate mineral weatheringChristina Paparokidou, Leake Jonathan R., Rolfe Stephen A., Beerling David J., 2022, objavljeni povzetek znanstvenega prispevka na konferenci Opis: Ectomycorrhizal fungi (EMF) form symbiotic partnerships with tree roots and are able to
chemically weather inorganic phosphorus (Pi)-rich minerals, supplying Pi to their host in
return for photosynthates. The fungal-driven nutrient cycling from mineral weathering
plays a pivotal role in ecosystems and crops productivity, as well as geochemical cycles.
The aim of the study presented in this thesis is to unravel the molecular mechanisms by
which the EM fungus Paxillus involutus weathers the Pi-rich mineral hydroxyapatite
(HAP), either non-symbiotically or in symbiosis with its host tree Pinus sylvestris.
Development of an artificial system to study P. involutus responses to varying
concentration of Pi led to the identification of five high-affinity Pi transporter genes, of
which the expression varies in an inversely proportional manner to Pi availability. Using
the same system, whole-transcriptomic data from fungal hyphae unravelled the molecular
basis of the EMF ability in Pi uptake at the global gene scale, revealing that EM symbiosis
can directly affect Pi-responsive fungal genes such as the Pi transporter PiPT4. A second
artificial system was used to study HAP solubilisation driven by P. involutus, which was
confirmed by EDX spectroscopy data showing depletion of Pi from the HAP crystals,
along with secondary minerals formation. Whole-transcriptomic analysis revealed that EM
symbiosis induces a different set of HAP weathering genes in P. involutus hyphae,
compared to the fungus growing non-symbiotically, including the specific expression of
organic acid metabolic genes, which resulted in enhanced HAP solubilisation.
Metabolomic analysis led to the identification of multiple secreted metabolites enriched in
the presence of HAP in P. involutus systems grown non-symbiotically or in symbiosis with
P. sylvestris seedlings. The analysis also led to the identification of putative novel fungal
weathering agents. Results from transcriptomic and metabolomic analyses were
ultimately combined in a model of HAP weathering by P. involutus.
Ključne besede: Paxillus involutus, Pinus Sylvestris, ectomycorrhizal symbiosis, mineral weathering, hydroxyapatite, RNA-seq, SEM-EDS, UPLC-Q-TOF-MS
Objavljeno v RUNG: 18.01.2023; Ogledov: 303; Prenosov: 0
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5. Light-Induced Magnetization at the NanoscaleJonas Wätzel, Primož Rebernik Ribič, Marcello Coreno, Miltcho Danailov, Christian David, Alexander Demidovich, Michele Di Fraia, Luca Giannessi, Klavs Hansen, Špela Krušič, Michele Manfredda, Michael Meyer, Andrej Mihelič, Najmeh Mirian, Oksana Plekan, Barbara Ressel, Benedikt Rösner, Alberto Simoncig, Simone Spampinati, Matija Stupar, Matjaž Žitnik, Marco Zangrando, Carlo Callegari, Jamal Berakdar, Giovanni De Ninno, 2022, izvirni znanstveni članek Ključne besede: FEL, orbital angular momentum, magnetisation
Objavljeno v RUNG: 16.01.2023; Ogledov: 259; Prenosov: 0
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8. Phosphate availability and ectomycorrhizal symbiosis with Pinus sylvestris have independent effects on the Paxillus involutus transcriptomeChristina Paparokidou, Jonathan R. Leake, David J. Beerling, Stephen A. Rolfe, 2021, izvirni znanstveni članek Opis: Many plant species form symbioses with ectomycorrhizal fungi, which help them forage for limiting nutrients in the soil such as inorganic phosphate (Pi). The transcriptional responses to symbiosis and nutrient-limiting conditions in ectomycorrhizal fungal hyphae, however, are largely unknown. An artificial system was developed to study ectomycorrhizal basidiomycete Paxillus involutus growth in symbiosis with its host tree Pinus sylvestris at different Pi concentrations. RNA-seq analysis was performed on P. involutus hyphae growing under Pi-limiting conditions, either in symbiosis or alone. We show that Pi starvation and ectomycorrhizal symbiosis have an independent effect on the P. involutus transcriptome. Notably, low Pi availability induces expression of newly identified putative high-affinity Pi transporter genes, while reducing the expression of putative organic acid transporters. Additionally, low Pi availability induces a close transcriptional interplay between P and N metabolism. GTP-related signalling was found to have a positive effect in the maintenance of ectomycorrhizal symbiosis, whereas multiple putative cytochrome P450 genes were found to be downregulated, unlike arbuscular mycorrhizal fungi. We provide the first evidence of global transcriptional changes induced by low Pi availability and ectomycorrhizal symbiosis in the hyphae of P. involutus, revealing both similarities and differences with better-characterized arbuscular mycorrhizal fungi.
Ključne besede: Ectomycorrhizal symbiosis, Paxillus involutus, Pi transporters, Pi-starvation, Pinus sylvestris, RNA-seq.
Objavljeno v RUNG: 03.05.2022; Ogledov: 674; Prenosov: 0
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10. Business-information system for smart homes based on Z-Wave technology : diploma thesisDavid Manchevski, 2021, diplomsko delo Opis: The goal of this thesis is to show how to create a system, that can be implemented in today’s market of smart home modules.
This will be done by introducing how the Z-Wave technology works, how it can be implemented in the user’s home. Furthermore, the functionalities of the Z-Wave technology will be presented together with the Z-Wave modules and their everyday uses. In addition, the business-information system can put on display how a smart home company operates, how the data is distributed between the departments of said smart home company. The business-information system is shown with the help of a data flow diagrams, entity relationship diagrams and a database of the data that is stored inside the particular database. This system will be used by a user interested in the buying the smart home technology products, partners, Z-wave certifiers, reclamation department.
Ključne besede: Z-Waves, smart homes, business-information systems, entity-relationship, processes, data flows, data stores, modules, diploma thesis
Objavljeno v RUNG: 24.01.2022; Ogledov: 1238; Prenosov: 68
 Povezava na celotno besedilo
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