1151. Active turbulence in a gas of self-assembled spinnersGašper Kokot, Shibananda Das, Roland G. Winkler, Gerhard Gompper, Igor S. Aranson, Alexey Snezhko, 2017, izvirni znanstveni članek Ključne besede: fluid dynamics, magnetic colloids, self-assembly
Objavljeno v DiRROS: 08.09.2025; Ogledov: 448; Prenosov: 110
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1153. Fabrication of high-aspect ratio nanogratings for phase-based X-ray imagingMartyna Michalska, Alessandro Rossi, Gašper Kokot, Callum M. Macdonald, Silvia Cipiccia, Peter R.T. Munro, Alessandro Olivo, Ioannis Papakonstantinou, 2023, izvirni znanstveni članek Povzetek: Diffractive optical elements such as periodic gratings are fundamental devices in X-ray imaging – a technique that medical, material science, and security scans rely upon. Fabrication of such structures with high aspect ratios at the nanoscale creates opportunities to further advance such applications, especially in terms of relaxing X-ray source coherence requirements. This is because typical grating-based X-ray phase imaging techniques (e.g., Talbot self-imaging) require a coherence length of at least one grating period and ideally longer. In this paper, the fabrication challenges in achieving high-aspect ratio nanogratings filled with gold are addressed by a combination of laser interference and nanoimprint lithography, physical vapor deposition, metal assisted chemical etching (MACE), and electroplating. This relatively simple and cost-efficient approach is unlocked by an innovative post-MACE drying step with hexamethyldisilazane, which effectively minimizes the stiction of the nanostructures. The theoretical limits of the approach are discussed and, experimentally, X-ray nanogratings with aspect ratios >40 are demonstrated. Finally, their excellent diffractive abilities are shown when exposed to a hard (12.2 keV) monochromatic X-ray beam at a synchrotron facility, and thus potential applicability in phase-based X-ray imaging.
Ključne besede: nanogratings, X-ray imaging, mechanical stability
Objavljeno v DiRROS: 08.09.2025; Ogledov: 259; Prenosov: 105
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1154. Volatile organic compounds (VOCs) and polycyclic aromatic hydrocarbons (PAHs) in indoor environments: a review and analysis of measured concentrations in EuropeNikolina Račić, Ivana Terzić, Nina Karlović, Anja Bošnjaković, Teo Terzić, Ivana Jakovljević, Gordana Pehnec, Tajana Horvat, Goran Gajski, Bojana Žegura, 2025, pregledni znanstveni članek Povzetek: Indoor air quality is a significant aspect of public health, yet it remains less studied than outdoor air pollution. Understudied indoor pollutants include volatile organic compounds (VOCs) and polycyclic aromatic hydrocarbons (PAHs). This review focuses on these two groups of compounds known for their health effects, including respiratory issues, neurological disorders, and carcinogenicity. We systematically compiled and analyzed data from studies reporting measured concentrations of VOCs and PAHs in European indoor environments—homes, schools, and offices—published in the past two decades. Concentration levels vary substantially across studies, influenced by regional differences, climate, building type, ventilation systems, and indoor activities. Identified sources include tobacco smoke, cooking, heating (e.g., biomass burning), and off-gassing from construction and furnishing materials. Our analysis reveals clear geographic patterns: lower concentrations of VOCs and PAHs are consistently reported in Northern and Western European countries, likely due to stricter air quality regulations, cleaner outdoor air, greater use of electric heating, and more advanced ventilation systems. Conversely, higher concentrations are more commonly observed in Southern and Eastern Europe, where biomass heating and poorer ventilation remain more prevalent. Seasonal variation also has a significant role, with higher indoor levels typically measured during colder months due to increased heating and reduced air exchange. This highlights the need for improved indoor air quality management practices and regulatory standards to minimize the health risks associated with VOCs and PAHs. This review of 46 scientific publications is aimed at informing future studies and guiding future field measurements and risk assessments in epidemiological studies.
Ključne besede: health risks, indoor air quality, PAHs, public health, VOCs
Objavljeno v DiRROS: 08.09.2025; Ogledov: 372; Prenosov: 152
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1155. Spontaneous self-propulsion and nonequilibrium shape fluctuations of a droplet enclosing active particlesGašper Kokot, Hammad Ali Faizi, Gerardo Pradillo, Alexey Snezhko, Petia M. Vlahovska, 2022, izvirni znanstveni članek Ključne besede: active particles, dynamic structures, Quincke effect, nonequilibrium nature
Objavljeno v DiRROS: 08.09.2025; Ogledov: 355; Prenosov: 88
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1156. Kartiranje morskega dna in habitatnih tipov ter popis flore in favne na območju predvidene gradnje protipoplavne zaščite mesta Piran : končno poročiloLovrenc Lipej, Ana Fortič, Borut Mavrič, Martina Orlando-Bonaca, Tihomir Makovec, Milijan Šiško, Leon Lojze Zamuda, Domen Trkov, končno poročilo o rezultatih raziskav Ključne besede: Občina Piran, protipoplavna zaščita, kartiranje, habitatni tipi, biološke združbe
Objavljeno v DiRROS: 08.09.2025; Ogledov: 303; Prenosov: 84
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1157. Digital PCR genotyping of pepino mosaic virusAmadej Jelenčič, David Dobnik, Alexandra Bogožalec Košir, Nataša Mehle, 2025, samostojni znanstveni sestavek ali poglavje v monografski publikaciji Povzetek: Pepino mosaic virus (PepMV) is a plant pathogen causing significant economic losses in tomato production. Sensitive, reliable, and robust detection methods are crucial for containing the spread of PepMV and reducing its damaging effects. Digital PCR (dPCR) presents several advantages to conventional real-time quantitative PCR (qPCR), including absolute quantification ability, robust quantitative multiplexing capabilities, and straightforward result analysis. Furthermore, dPCR is especially suitable for analysis of complex samples due to its remarkable tolerance to PCR inhibitors, which makes it a promising method for plant virus genotyping. In this chapter, we present two protocols for PepMV genotyping and quantification using one-step reverse transcription digital PCR (RT-dPCR). The first protocol outlines four simplex assays, while the second describes two duplex assays for precise and comprehensive genotyping of PepMV variants.
Ključne besede: plant viruses, detection, quantification, Pepino mosaic virus, PepMV, digital PCR, dPCR, RT-dPCR, duplex
Objavljeno v DiRROS: 08.09.2025; Ogledov: 356; Prenosov: 47
Celotno besedilo (1,54 MB)
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