21. Nutritional quality and safety of the spirulina dietary supplements sold on the Slovenian marketJasmina Masten, Marta Jagodic Hudobivnik, Marijan Nečemer, Katarina Vogel-Mikuš, Iztok Arčon, Nives Ogrinc, 2022, izvirni znanstveni članek Opis: The microalgae Spirulina may be a popular dietary supplement rich in essential nutrients
and vitamins, but oversight of the supplement industry, in general, remains limited, and increasing
incidents of adulteration, misbranding, and undeclared ingredients together with misleading claims
create potential risks. In response, this study characterized the elemental, amino acid and fatty acid
content of commercially available Spirulina supplements in Slovenia using EDXRF, ICP-MS and
GC-MS and compared the results with their nutritional declaration. The gathered data confirm that
Spirulina supplements are a good source of calcium (0.15 to 29.5% of RDA), phosphorous (3.36–26.7%
of RDA), potassium (0.5 to 7.69% of RDA) and selenium (0.01 to 38.6% of RDA) when consumed
within recommended amounts. However, although iron contents were relatively high (7.64 to 316%
of RDA), the actual bioavailability of iron was much lower since it was mainly present as the ferric
cation. This study also confirms that pure Spirulina supplements are a good source of essential
and non-essential amino acids, and !-6 but not !-3 polyunsaturated fatty acids. The presence of
additives resulted in significant variation in nutrient content and, in some instances, lower product
quality. Moreover, a high proportion (86.7%) of inappropriate declarations regarding the elemental
content was observed. Overall, the study conclusions underline the need for a stricter control system
for Spirulina-based supplements. Ključne besede: Spirulina, microalgae, cyanobacteria, elements, toxic elements, amino acids, fatty acids, authenticity, safety, quality Objavljeno v RUNG: 24.03.2022; Ogledov: 2173; Prenosov: 0 Gradivo ima več datotek! Več... |
22. Spremljanje kakovosti vode reke Reke (maj - avgust 2015)Asta Gregorič, Petra Makorič, Marta Stopar, Mladen Franko, 2015, elaborat, predštudija, študija Ključne besede: Reka, kakovost vode, ionska kromatografija, TOC, vzorčenje Objavljeno v RUNG: 02.03.2022; Ogledov: 2482; Prenosov: 0 Gradivo ima več datotek! Več... |
23. Design and implementation of the AMIGA embedded system for data acquisitionA. Aab, Andrej Filipčič, Jon Paul Lundquist, Samo Stanič, Marta Trini, Serguei Vorobiov, Danilo Zavrtanik, Marko Zavrtanik, Lukas Zehrer, 2021, izvirni znanstveni članek Ključne besede: Sprotno zajemanje podatkov, kontrolni sistemi, algoritmi, baze podatkov, Observatorij Pierre Auger Objavljeno v RUNG: 21.07.2021; Ogledov: 2676; Prenosov: 184 Povezava na celotno besedilo Gradivo ima več datotek! Več... |
24. Extraction of the muon signals recorded with the surface detector of the Pierre Auger Observatory using recurrent neural networksA. Aab, Andrej Filipčič, Jon Paul Lundquist, Samo Stanič, Marta Trini, Serguei Vorobiov, Danilo Zavrtanik, Marko Zavrtanik, Lukas Zehrer, 2021, izvirni znanstveni članek Ključne besede: Statistične metode, Čerenkov detektor, kalibracije in metode prilagajanja, Observatorij Pierre Auger Objavljeno v RUNG: 19.07.2021; Ogledov: 2821; Prenosov: 627 Povezava na celotno besedilo Gradivo ima več datotek! Več... |
25. Deep-learning based reconstruction of the shower maximum X [sub] (max) using the water-Cherenkov detectors of the Pierre Auger ObservatoryA. Aab, Andrej Filipčič, Jon Paul Lundquist, Samo Stanič, Marta Trini, Serguei Vorobiov, Danilo Zavrtanik, Marko Zavrtanik, Lukas Zehrer, 2021, izvirni znanstveni članek Ključne besede: Prepoznavanje vzorcev, kalibracija in metode prilagajanja, veliki detektorski sistemi za fiziko in astrofiziko delcev, Observatory Pierre Auger Objavljeno v RUNG: 16.07.2021; Ogledov: 3482; Prenosov: 201 Povezava na celotno besedilo Gradivo ima več datotek! Več... |
26. The energy spectrum of ultra-high energy cosmic rays measured at the Pierre Auger Observatory and at the Telescope ArrayOlivier Deligny, Andrej Filipčič, Gašper Kukec Mezek, Jon Paul Lundquist, Samo Stanič, Marta Trini, Serguei Vorobiov, Lili Yang, Danilo Zavrtanik, Marko Zavrtanik, Lukas Zehrer, 2019, objavljeni znanstveni prispevek na konferenci Ključne besede: ultra-high energy cosmic rays (UHECR), UHECR energy spectrum, Pierre Auger Observatory, Telescope Array Objavljeno v RUNG: 10.05.2021; Ogledov: 2578; Prenosov: 71 Celotno besedilo (243,63 KB) |
27. Measurement of the fluctuations in the number of muons in extensive air showers with the Pierre Auger ObservatoryA. Aab, Andrej Filipčič, Gašper Kukec Mezek, Jon Paul Lundquist, Samo Stanič, Marta Trini, Serguei Vorobiov, Danilo Zavrtanik, Marko Zavrtanik, Lukas Zehrer, 2021, izvirni znanstveni članek Ključne besede: ultra-high energy cosmic rays, extensive air showers (EAS), EAS muonic component, hadronic interaction models, Pierre Auger Observatory Objavljeno v RUNG: 29.04.2021; Ogledov: 2635; Prenosov: 0 Gradivo ima več datotek! Več... |
28. An anti-HER2 nanobody binds to its antigen HER2 via two independent paratopesDaniele Ubbiali, Marco Orlando, Matic Kovačič, Claudio Iacobucci, Marta S. Semrau, Gregor Bajc, Sara Fortuna, Gregor Ilc, Barbara Medagli, Sandra Oloketuyi, Ario De Marco, 2021, izvirni znanstveni članek Ključne besede: NMR, cross-linking, mass spectrometry, nanobodies, modelling, rational mutagenesis Objavljeno v RUNG: 15.04.2021; Ogledov: 2983; Prenosov: 0 Gradivo ima več datotek! Več... |
29. Calibration of the underground muon detector of the Pierre Auger ObservatoryA. Aab, Andrej Filipčič, Jon Paul Lundquist, Samo Stanič, Marta Trini, Serguei Vorobiov, Danilo Zavrtanik, Marko Zavrtanik, Lukas Zehrer, 2021, izvirni znanstveni članek Opis: To obtain direct measurements of the muon content of extensive air showers with energy above 10[sup]16.5 eV, the Pierre Auger Observatory is currently being equipped with an underground muon detector (UMD), consisting of 219 10 m[sup]2-modules, each segmented into 64 scintillators coupled to silicon photomultipliers (SiPMs). Direct access to the shower muon content allows for the study of both of the composition of primary cosmic rays and of high-energy hadronic interactions in the forward direction. As the muon density can vary between tens of muons per m[sup]2 close to the intersection of the shower axis with the ground to much less than one per m[sup]2 when far away, the necessary broad dynamic range is achieved by the simultaneous implementation of two acquisition modes in the read-out electronics: the binary mode, tuned to count single muons, and the ADC mode, suited to measure a high number of them. In this work, we present the end-to-end calibration of the muon detector modules: first, the SiPMs are calibrated by means of the binary channel, and then, the ADC channel is calibrated using atmospheric muons, detected in parallel to the shower data acquisition. The laboratory and field measurements performed to develop the implementation of the full calibration chain of both binary and ADC channels are presented and discussed. The calibration procedure is reliable to work with the high amount of channels in the UMD, which will be operated continuously, in changing environmental conditions, for several years. Ključne besede: ultra-high energy cosmic rays, extensive air showers (EAS), EAS muonic component, Pierre Auger Observatory, underground muon detector, detector calibration Objavljeno v RUNG: 14.04.2021; Ogledov: 3269; Prenosov: 140 Povezava na celotno besedilo Gradivo ima več datotek! Več... |
30. New insights into the GINS complex explain the controversy between existing structural modelsMarta Carroni, Matteo De March, Barbara Medagli, Ivet Krastanova, Ian A. Taylor, Heinz Amenitsch, Hiroyuchi Araki, Francesca M. Pisani, Ardan Patwardhan, Silvia Onesti, 2017, izvirni znanstveni članek Ključne besede: GINS, structure, biology Objavljeno v RUNG: 03.03.2021; Ogledov: 2637; Prenosov: 20 Povezava na celotno besedilo Gradivo ima več datotek! Več... |