scholarly journals Relay Synchronization in a Weighted Triplex Network

Mathematics ◽  
2021 ◽  
Vol 9 (17) ◽  
pp. 2135
Author(s):  
Md Sayeed Anwar ◽  
Dibakar Ghosh ◽  
Nikita Frolov

Relay synchronization in multi-layer networks implies inter-layer synchronization between two indirectly connected layers through a relay layer. In this work, we study the relay synchronization in a three-layer multiplex network by introducing degree-based weighting mechanisms. The mechanism of within-layer connectivity may be hubs-repelling or hubs-attracting whenever low-degree or high-degree nodes receive strong influence. We adjust the remote layers to hubs-attracting coupling, whereas the relay layer may be unweighted, hubs-repelling, or hubs-attracting network. We establish that relay synchronization is improved when the relay layer is hubs-repelling compared to the other cases. We determine analytically necessary stability conditions of relay synchronization state using the master stability function approach. Finally, we explore the relation between synchronization and the topological property of the relay layer. We find that a higher clustering coefficient hinders synchronizability, and vice versa. We also look into the intra-layer synchronization in the proposed weighted triplex network and establish that intra-layer synchronization occurs in a wider range when relay layer is hubs-attracting.

Author(s):  
Sarbendu Rakshit ◽  
Bidesh K. Bera ◽  
Jürgen Kurths ◽  
Dibakar Ghosh

Most of the previous studies on synchrony in multiplex networks have been investigated using different types of intralayer network architectures which are either static or temporal. Effect of a temporal layer on intralayer synchrony in a multilayered network still remains elusive. In this paper, we discuss intralayer synchrony in a multiplex network consisting of static and temporal layers and how a temporal layer influences other static layers to enhance synchrony simultaneously. We analytically derive local stability conditions for intralayer synchrony based on the master stability function approach. The analytically derived results are illustrated by numerical simulations on up to five-layers multiplex networks with the paradigmatic Lorenz system as the node dynamics in each individual layer.


2021 ◽  
pp. 174239532110397
Author(s):  
Maan Isabella Cajita ◽  
Kris Denhaerynck ◽  
Lut Berben ◽  
Fabienne Dobbels ◽  
Johan Van Cleemput ◽  
...  

Purpose To explore the association between the degree of Chronic illness management and survival rates at 1-, 3-, 5-years post heart transplantation. Methods Exploratory secondary analysis of a cross-sectional, international study (Building Research Initiative Group study). Latent profile analysis was performed to classify 36 heart transplant centers according to the degree of chronic illness management. Results The analysis resulted in 2 classes with 29 centers classified as “low-degree chronic illness management” and 7 centers as “high-degree chronic illness management”. After 1-year posttransplantation, the high-degree chronic illness management class had a significantly greater mean survival rate compared to the low-degree chronic illness management class (88.4% vs 84.2%, p = 0.045) and the difference had a medium effect size (η2 = .06). No difference in survival for the other time points was observed. Patients in high-degree chronic illness management centers had 52% lower odds of moderate to severe drinking (95% confidence interval .30–.78, p = 0.003). No significant associations between degree of chronic illness management and the other recommended health behaviors were observed. Conclusions The findings from this exploratory study offer preliminary insight into a system-level pathway (chronic illness management) for improving outcomes for heart transplant recipients. The signals observed in our data support further investigation into the effectiveness of chronic illness management-based interventions in heart transplant follow-up care.


2015 ◽  
pp. 81-96
Author(s):  
Danuta Roszko ◽  
Roman Roszko

Differences in the formalization of the semantic category of definiteness / indefinitenessBasing on theoretical contrastive studies guidelines, the article defines the semantic category of definiteness/indefiniteness where two basic opposition meanings are being ascribed to. It also distinguishes crucial sub-meanings for this category. The category established like this constitutes a characteristic interlanguage typical of theoretical contrastive studies, which is here used as tertium comparationis for demonstrating the formal differences between Polish, Lithuanian and dialectal exponents to express particular sub/meanings. The differences demonstrated in the article are to confirm a different degree of the formalization of the category in each of the natural codes compared here. The idea of taking the local dialect of Puńsk into consideration results from a clearly visible influence of Polish and Lithuanian on the traditional dialectal system. In consequence, the dialectal system of exponents to express the meanings within the semantic category of definiteness/indefiniteness keeps a high degree of the traditional exponents specialization on one hand, but on the other hand, a low degree of specialization is being ascribed to some forms borrowed from Lithuanian (as a consequence of the Polish language influence), which results from the bilingualism of the Lithuanians living in Poland.


HortScience ◽  
1994 ◽  
Vol 29 (7) ◽  
pp. 809-811 ◽  
Author(s):  
Yuri Nakamura ◽  
Shozo Kobayashi

Restriction fragment length analyses of mitochondrial DNA (mtDNA) and chloroplast DNA (cpDNA) were carried out on 11 cultivars of Japanese persimmon (Diospyros kaki Thunb.) and five other Diospyros species. Total genomic DNA was digested with seven restriction endonucleases, Southern blotted, and hybridized with five mtDNA probes (PstI or SalI fragments of Brassica campestris L. mtDNA) and one cpDNA probe [pTBal, BamHI fragment of Nicotiana tabacum (L.) cpDNA]. All Japanese persimmon cultivars displayed identical mtDNA and cpDNA fragment patterns, while polymorphisms among species were observed using both mtDNA and cpDNA probes. A low degree of polymorphism was observed between D. kaki, D. oleifera Cheng., D. kuroiwai Nakai, D. virginiana L., and D. lotus L., suggesting that these species are closely related. A high degree of polymorphism was observed between D. rhombifolia Hemsl. and the other five species, indicating that this species is more distantly related to the other five.


2020 ◽  
Vol 54 (2) ◽  
pp. 371-404 ◽  
Author(s):  
Sonja Gipper

AbstractThis paper outlines a method for studying the sequential distributions of epistemic markers with the purpose of gaining insight into their interactional functions. The method is exemplified with a case study of two epistemic markers of Yurakaré (isolate, Bolivia), =la “commitment” and =se “presupposition”. The investigation reveals that the two markers show different distributions across initial and responsive utterances. Moreover, each marker functions differently when used in initial utterances and responses. It is argued that these distributions show that the interactional functions of the two markers go beyond the marking of commitment and presupposition, and that they contrast in terms of two scales, one capturing the poles of “highly initiating” and “highly responsive”, the other concerning high vs. low degrees of “thematic agency”. While the commitment marker =la is associated with the responsivity pole and with a low degree of thematic agency, the presupposition marker =se shows a tendency toward the initiating pole and toward a high degree of thematic agency. These findings then support the view that epistemic markers are employed to co-construct epistemic perspectives in interaction rather than to make explicit some internal epistemic state held by the speaker.


2012 ◽  
Vol 24 (3) ◽  
pp. 193-232 ◽  
Author(s):  
Margot Kraaikamp

In this paper, it is argued that, although Dutch gender assignment is not systematically organized along semantic lines in the lexicon, the gender system has a semantic basis. This semantic basis involves a distinction between masculine/common gender associated with a high degree of individuation on the one hand, and neuter gender associated with a low degree of individuation, on the other hand. This is in line with Audring (2006, 2009), who found that Dutch pronouns often show semantic agreement along these lines. It is shown that the same semantic distinction between the genders can also be found in the nominal domain. It surfaces particularly in cases where lexically stored gender does not play a role. The semantic distinction arguably goes back to Proto-Indo-European. It is argued that, since nominal gender has become an invariable, lexically stored feature of nouns, the semantic basis of nominal gender assignment has become disrupted. This causes a con-flict between lexical and semantic gender agreement in pronouns. It is suggested that the surfacing of semantic agreement in this conflict is connected with a reduced marking of lexical gender on adnominal elements.


1973 ◽  
Vol 37 ◽  
Author(s):  
N. Lust

Pigment content of ashes grown up under different circumstances - The pigment content (chlorophyll a, chlorophyll b,  xanthophyll and carotene) has been researched with ashes grown up under  different light circumstances and varying in age and height.     The results prove that the general laws concerning the influence of light  on the pigment content, don’t always work.     The phenomen is very complex. The light quantity is very important in some  cases, but insignificant in others. It seems origin and height of plants have  a strong influence. The results prove also the influence of the environment  is much higher on small plants as on big ones.     The research indicates finally the correlation between the green pigments,  the yellow pigments, and between the green pigments on the one side and the  yellow ones on the other side.


1980 ◽  
Vol 45 (4) ◽  
pp. 1144-1154 ◽  
Author(s):  
Miroslav Baudyš ◽  
Helena Keilová ◽  
Vladimír Kostka

To determine the primary structure of the C-terminal part of the molecule of chicken pepsinogen the tryptic, chymotryptic and thermolytic digest of the protein were investigated and peptides derived from this region were sought. These peptides permitted the following 21-residue C-terminal sequence to be determined: ...Ile-Arg-Glu-Tyr-Tyr-Val-Ile-Phe-Asp-Arg-Ala-Asn-Asn-Lys-Val-Gly-Leu-Ser-Pro-Leu-Ser.COOH. A comparison of this structure with the C-terminal sequential regions of the other acid proteases shows a high degree of homology between chicken pepsinogen and these proteases (e.g., the degree of homology with respect to hog pepsinogen and calf prochymosin is about 66%). Additional tryptic peptides, derived from the N-terminal part of the zymogen molecule whose amino acid sequence has been reported before, were also obtained in this study. This sequence was extended by two residues using an overlapping peptide. An ancillary result of this study was the isolation of tryptic peptides derived from other regions of the zymogen molecule.


1972 ◽  
Vol 18 (10) ◽  
pp. 1543-1550 ◽  
Author(s):  
Robert G. Brown

A strain of Penicillium lilacinum, isolated from soil, produced pustulanase, β-(1 → 3)-glucanase, (EC. 3.2.1.6) and cellulase (EC.3.2.1.4) when cultivated on a medium containing pustulan as the sole source of carbon. If pustulan was replaced by ketopustulan, the production of pustulanase was stimulated about 10-fold although the amount of stimulation was dependent on the degree of oxidation of pustulan. β-(1 → 3)-Glucanase production was stimulated slightly by ketopustulan; however, the degree of oxidation did not affect significantly the yield of this enzyme. Cellulase production was either unaffected by the oxidized polymer, or at higher degrees of oxidation, decreased. Tween 80 stimulated the production of the three enzymes in media containing ketopustulan with a low degree of oxidation but was inhibitory to pustulanase and cellulase production in media containing ketopustulan with a high degree of oxidation. A combination of gel filtration and isoelectric focusing revealed that each enzyme activity was attributable to at least two proteins.


2016 ◽  
Vol 397 (2) ◽  
pp. 135-145 ◽  
Author(s):  
Miriam Olombrada ◽  
Lucía García-Ortega ◽  
Javier Lacadena ◽  
Mercedes Oñaderra ◽  
José G. Gavilanes ◽  
...  

Abstract Ribotoxins are cytotoxic members of the family of fungal extracellular ribonucleases best represented by RNase T1. They share a high degree of sequence identity and a common structural fold, including the geometric arrangement of their active sites. However, ribotoxins are larger, with a well-defined N-terminal β-hairpin, and display longer and positively charged unstructured loops. These structural differences account for their cytotoxic properties. Unexpectedly, the discovery of hirsutellin A (HtA), a ribotoxin produced by the invertebrate pathogen Hirsutella thompsonii, showed how it was possible to accommodate these features into a shorter amino acid sequence. Examination of HtA N-terminal β-hairpin reveals differences in terms of length, charge, and spatial distribution. Consequently, four different HtA mutants were prepared and characterized. One of them was the result of deleting this hairpin [Δ(8-15)] while the other three affected single Lys residues in its close spatial proximity (K115E, K118E, and K123E). The results obtained support the general conclusion that HtA active site would show a high degree of plasticity, being able to accommodate electrostatic and structural changes not suitable for the other previously known larger ribotoxins, as the variants described here only presented small differences in terms of ribonucleolytic activity and cytotoxicity against cultured insect cells.


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