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Na voljo sta dva načina iskanja: enostavno in napredno. Enostavno iskanje lahko zajema niz več besed iz naslova, povzetka, ključnih besed, celotnega besedila in avtorja, zaenkrat pa ne omogoča uporabe operatorjev iskanja. Napredno iskanje omogoča omejevanje števila rezultatov iskanja z vnosom iskalnih pojmov različnih kategorij v iskalna okna in uporabo logičnih operatorjev (IN, ALI ter IN NE). V rezultatih iskanja se izpišejo krajši zapisi podatkov o gradivu, ki vsebujejo različne povezave, ki omogočajo vpogled v podroben opis gradiva (povezava iz naslova) ali sprožijo novo iskanje (po avtorjih ali ključnih besedah).

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561.
Water-templated growth of interfacial superglue polymers for tunable thin films and in situ fluid encapsulation
Venkata Subba R. Jampani, Miha Škarabot, Urban Mur, Damien Baigl, Ulrich Jonas, Jan P. F. Lagerwall, Miha Ravnik, Manos Anyfantakis, 2024, izvirni znanstveni članek

Povzetek: Thin polymer films (TPFs) are indispensable elements in numerous technologies ranging from liquid encapsulation to biotechnology to electronics. However, their production typically relies on wet chemistry involving organic solvents or chemical vapor deposition, necessitating elaborate equipment and often harsh conditions. Here, an eco-friendly, fast, and facile synthesis of water-templated interfacial polymers based on cyanoacrylates (superglues, CAs) that yield thin films with tailored properties is demonstrated. Specifically, by exposing a cationic surfactant-laden water surface to cyanoacrylate vapors, surfactant-modulated anionic polymerization produces a manipulable thin polymer film with a thickness growth rate of 8 nm min−1. Furthermore, the shape and color of the film are precisely controlled by the polymerization kinetics, wetting conditions, and/or exposure to patterned light. Using various interfaces as templates for film growth, including the free surface of drops and soap bubbles, the developed method advantageously enables in situ packaging of chemical and biological cargos in liquid phase as well as the encapsulation of gases within solidified bubbles. Simple, versatile, and biocompatible, this technology constitutes a potent platform for programmable coating and soft/smart encapsulation of fluids.
Ključne besede: thin polymer films, fluid encapsulation
Objavljeno v DiRROS: 07.10.2024; Ogledov: 229; Prenosov: 341
.pdf Celotno besedilo (16,18 MB)
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562.
Diet of three cryptobenthic clingfish species and the factors influencing it
Domen Trkov, Danijel Ivajnšič, Marcelo Kovačić, Lovrenc Lipej, 2024, izvirni znanstveni članek

Povzetek: Cryptobenthic fish are small benthic fish species that normally live in various hiding places. Due to their large numbers, they are very important for energy transfer to higher trophic levels. However, due to their small size and hidden lifestyle, knowledge about them and their ecology, including their diet, is still limited. Using a non-destructive method based on faecal pellets, we investigated the diet of three clingfish species, Lepadogaster lepadogaster, L. candolii, and Apletodon incognitus, in the shallow northern Adriatic Sea. To better understand the results, we studied the fauna of potential prey in the habitats of the fish studied and also took fish specimens to observe their behaviour in the laboratory. The three species feed predominantly on crustaceans, particularly amphipods, copepods, and decapods. The proportion of the different taxa in the diet depends on the species of clingfish, the size of the specimens, and the size of the prey. In addition, the behaviour of the fish, the home range of the specimens, and the availability of food played an important role. The presence of certain crustacean groups in the environment also determines the occurrence of clingfish of different species and sizes.
Ključne besede: cryptobenthic fish, clingfish species, diet, diet habits, non-destructive method, faecal pellets, crustaceans, northern Adriatic Sea
Objavljeno v DiRROS: 03.10.2024; Ogledov: 282; Prenosov: 112
.pdf Celotno besedilo (738,93 KB)
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563.
On the 2-rainbow independent domination numbers of some graphs
Boštjan Gabrovšek, Aljoša Peperko, Janez Žerovnik, 2023, izvirni znanstveni članek

Povzetek: By suitably adjusting the tropical algebra technique we compute the rainbow independent domination numbers of several infinite families of graphs including Cartesian products $C_n \Box P_m$ and $C_n \Box C_m$ for all $n$ and $m\le 5$, and generalized Petersen graphs $P(n,2)$ for $n \ge 3$.
Ključne besede: graph theory, rainbow independent domination number, path algebra, tropical algebra
Objavljeno v DiRROS: 03.10.2024; Ogledov: 219; Prenosov: 106
.pdf Celotno besedilo (459,61 KB)
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564.
Inequalities and equalities on the joint and generalized spectral and essential spectral radius of the Hadamard geometric mean of bounded sets of positive kernel operators
Katarina Bogdanović, Aljoša Peperko, 2023, izvirni znanstveni članek

Povzetek: We prove new inequalities and equalities for the generalized and the joint spectral radius (and their essential versions) of Hadamard (Schur) geometric means of bounded sets of positive kernel operators on Banach function spaces. In the case of nonnegative matrices that define operators on Banach sequences we obtain additional results. Our results extend results of several authors that appeared relatively recently.
Ključne besede: Hadamard-Schur geometric mean, Hadamard-Schur product, joint and generalized spectral radius, essential spectral radius, measure of noncompactness, positive kernel operators, non-negative matrices, bounded sets of operators
Objavljeno v DiRROS: 03.10.2024; Ogledov: 224; Prenosov: 121
.pdf Celotno besedilo (1,72 MB)
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565.
Covering the edges of a graph with triangles
Csilla Bujtás, Akbar Davoodi, Laihao Ding, Ervin Győri, Zsolt Tuza, Donglei Yang, 2025, izvirni znanstveni članek

Povzetek: In a graph $G$, let $\rho_\triangle(G)$ denote the minimum size of a set of edges and triangles that cover all edges of $G$, and let $\alpha_1(G)$ be the maximum size of an edge set that contains at most one edge from each triangle. Motivated by a question of Erdős, Gallai, and Tuza, we study the relationship between $\rho_\triangle(G)$ and $\alpha_1(G)$ and establish a sharp upper bound on $\rho_\triangle(G)$. We also prove Nordhaus-Gaddum-type inequalities for the considered invariants.
Ključne besede: edge-disjoint triangles, edge clique covering, Nordhaus-Gaddum inequality
Objavljeno v DiRROS: 03.10.2024; Ogledov: 203; Prenosov: 111
.pdf Celotno besedilo (283,48 KB)
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566.
Vertex-primitive digraphs with large fixity
Marco Barbieri, Primož Potočnik, 2024, izvirni znanstveni članek

Povzetek: The relative fixity of a digraph $\Gamma$ is defined as the ratio between the largest number of vertices fixed by a nontrivial automorphism of $\Gamma$ and the number of vertices of $\Gamma$ .We characterize the vertex-primitive digraphs whose relative fixity is at least $1 \over 3$, and we show that there are only finitely many vertex-primitive digraphs of bounded out-valency and relative fixity exceeding a positive constant.
Ključne besede: vertex-primitive digraphs, fixity, product action, graphs
Objavljeno v DiRROS: 03.10.2024; Ogledov: 254; Prenosov: 97
.pdf Celotno besedilo (397,05 KB)
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567.
Fast winning strategies for Staller in the Maker-Breaker domination game
Csilla Bujtás, Pakanun Dokyeesun, 2024, izvirni znanstveni članek

Povzetek: The Maker-Breaker domination game is played on a graph $G$ by two players, called Dominator and Staller, who alternately choose a vertex that has not been played so far. Dominator wins the game if his moves form a dominating set. Staller wins if she plays all vertices from a closed neighborhood of a vertex $v \in V(G)$. Dominator's fast winning strategies were studied earlier. In this work, we concentrate on the cases when Staller has a winning strategy in the game. We introduce the invariant $\gamma'_{\rm SMB}(G)$ (resp., $\gamma_{\rm SMB}(G)$) which is the smallest integer $k$ such that, under any strategy of Dominator, Staller can win the game by playing at most $k$ vertices, if Staller (resp., Dominator) plays first on the graph $G$. We prove some basic properties of $\gamma_{\rm SMB}(G)$ and $\gamma'_{\rm SMB}(G)$ and study the parameters' changes under some operators as taking the disjoint union of graphs or deleting a cut vertex. We show that the inequality $\delta(G)+1 \le \gamma'_{\rm SMB}(G) \le \gamma_{\rm SMB}(G)$ always holds and that for every three integers $r,s,t$ with $2\le r\le s\le t$, there exists a graph $G$ such that $\delta(G)+1 = r$, $\gamma'_{\rm SMB}(G) = s$, and $\gamma_{\rm SMB}(G) = t$. We prove exact formulas for $\gamma'_{\rm SMB}(G)$ where $G$ is a path, or it is a tadpole graph which is obtained from the disjoint union of a cycle and a path by adding one edge between them.
Ključne besede: domination game, Maker–Breaker game, winning number, Maker-Breaker domination game, closed neighborhood hypergraph
Objavljeno v DiRROS: 03.10.2024; Ogledov: 218; Prenosov: 107
.pdf Celotno besedilo (503,82 KB)
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568.
Comparative simulative analysis and design of single-chain self-assembled protein cages
Fei Xiao, Longfei Luo, Xin Liu, Ajasja Ljubetič, Nengzhi Jin, Roman Jerala, Guang Hu, 2024, izvirni znanstveni članek

Povzetek: Coiled-coil protein origami (CCPO) is a modular strategy for the de novo design of polypeptide nanostructures. It represents a type of modular design based on pairwise-interacting coiled-coil (CC) units with a single-chain protein programmed to fold into a polyhedral cage. However, the mechanisms underlying the self-assembly of the protein tetrahedron are still not fully understood. In the present study, 18 CCPO cages with three different topologies were modeled in silico. Then, molecular dynamics simulations and CC parameters were calculated to characterize the dynamic properties of protein tetrahedral cages at both the local and global levels. Furthermore, a deformed CC unit was redesigned, and the stability of the new cage was significantly improved.
Ključne besede: chemical structure, conformation, genetics oligomers stability
Objavljeno v DiRROS: 03.10.2024; Ogledov: 235; Prenosov: 56
.pdf Celotno besedilo (2,23 MB)
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569.
A note on the 2-colored rectilinear crossing number of random point sets in the unit square
Sergio Cabello, Éva Czabarka, Ruy Fabila-Monroy, Yuya Higashikawa, Raimund Seidel, László Székely, Josef Tkadlec, Alexandra Wesolek, 2024, izvirni znanstveni članek

Povzetek: Let $S$ be a set of four points chosen independently, uniformly at random from a square. Join every pair of points of $S$ with a straight line segment. Color these edges red if they have positive slope and blue, otherwise. We show that the probability that $S$ defines a pair of crossing edges of the same color is equal to $1/4$. This is connected to a recent result of Aichholzer et al. who showed that by $2$-colouring the edges of a geometric graph and counting monochromatic crossings instead of crossings, the number of crossings can be more than halved. Our result shows that for the described random drawings, there is a coloring of the edges such that the number of monochromatic crossings is in expectation ${1 \over 2} - {7 \over 50}$ of the total number of crossings.
Ključne besede: arrangement of points, flat, hyperplane
Objavljeno v DiRROS: 03.10.2024; Ogledov: 174; Prenosov: 91
.pdf Celotno besedilo (504,15 KB)
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570.
Conservation of molecular responses upon viral infection in the non-vascular plant Marchantia polymorpha
Eric Ros-Moner, Tamara Jiménez-Góngora, Luis Villar-Martin, Lana Vogrinec, Víctor M. González-Miguel, Denis Kutnjak, Ignacio Rubio-Somoza, 2024, izvirni znanstveni članek

Povzetek: After plants transitioned from water to land around 450 million years ago, they faced novel pathogenic microbes. Their colonization of diverse habitats was driven by anatomical innovations like roots, stomata, and vascular tissue, which became central to plant-microbe interactions. However, the impact of these innovations on plant immunity and pathogen infection strategies remains poorly understood. Here, we explore plant-virus interactions in the bryophyte Marchantia polymorpha to gain insights into the evolution of these relationships. Virome analysis reveals that Marchantia is predominantly associated with RNA viruses. Comparative studies with tobacco mosaic virus (TMV) show that Marchantia shares core defense responses with vascular plants but also exhibits unique features, such as a sustained wound response preventing viral spread. Additionally, general defense responses in Marchantia are equivalent to those restricted to vascular tissues in Nicotiana, suggesting that evolutionary acquisition of developmental innovations results in re-routing of defense responses in vascular plants.
Ključne besede: plant-virus interactions, bryophytes, virome analysis, high-throughput sequencing, virology, pathogenic, innovations, interactions, RNA viruses, plant defense response, botany
Objavljeno v DiRROS: 02.10.2024; Ogledov: 248; Prenosov: 278
.pdf Celotno besedilo (3,00 MB)
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