Now showing items 6684-6703 of 9868

    • The pantophysin gene and its relationship with survival in early life stages of Atlantic cod: Pantophysin in Atlantic cod 

      Otterå, Håkon Magne; Johansen, Torild; Folkvord, Arild; Dahle, Geir; Bingh, Marte Kristine Solvang; Westgaard, Jon-Ivar; Glover, Kevin (Journal article; Peer reviewed, 2020)
      Genetic markers are widely used in fisheries management around the world. While the genetic structure and markers selected are usually based on samples from the wild, very few controlled experiments have been carried out ...
    • The Paradox of Palmyra: An Ancient anomalopolis in the Desert 

      Raja, Rubina; Seland, Eivind Heldaas (Journal article; Peer reviewed, 2022)
      Palmyra, the UNESCO world heritage site that tragically made headlines following ISIS’s destruction of several of its key monuments in 2015, was once a thriving city in the heart of the Syrian Desert. Settled from Neolithic ...
    • Paradoxical sinus deceleration during dobutamine stress echocardiography: case series and review of the literature 

      Sulo, Enxhela; Davidsen, Einar Skulstad; Lønnebakken, Mai Tone; Bleie, Øyvind; Saeed, Sahrai (Journal article; Peer reviewed, 2022)
      Background: Dobutamine stress echocardiography is an established diagnostic modality for assessing myocardial ischaemia in patients with known or suspected coronary artery disease. Dobutamine infusion causes dose-dependent ...
    • Parameterization Above a Multiplicative Guarantee 

      Fomin, Fedor; Golovach, Petr; Lokshtanov, Daniel; Panolan, Fahad; Saurabh, Saket; Zehavi, Meirav (Journal article; Peer reviewed, 2020)
      Parameterization above a guarantee is a successful paradigm in Parameterized Complexity. To the best of our knowledge, all fixed-parameter tractable problems in this paradigm share an additive form defined as follows. Given ...
    • Parameterized complexity classification of deletion to list matrix-partition for low-order matrices 

      Agrawal, Akanksha; Kolay, Sudeshna; Madathil, Jayakrishnan; Saurabh, Saket (Journal article; Peer reviewed, 2019)
      Given a symmetric l x l matrix M=(m_{i,j}) with entries in {0,1,*}, a graph G and a function L : V(G) - > 2^{[l]} (where [l] = {1,2,...,l}), a list M-partition of G with respect to L is a partition of V(G) into l parts, ...
    • Parameterized complexity of categorical clustering with size constraints 

      Fomin, Fedor; Golovach, Petr; Purohit, Nidhi (Journal article; Peer reviewed, 2023)
    • Parameterized complexity of conflict-free matchings and paths 

      Agrawal, Akanksha; Jain, Pallavi; Kanesh, Lawqueen; Saurabh, Saket (Journal article; Peer reviewed, 2019)
      An input to a conflict-free variant of a classical problem Gamma, called Conflict-Free Gamma, consists of an instance I of Gamma coupled with a graph H, called the conflict graph. A solution to Conflict-Free Gamma in (I,H) ...
    • Parameterized Complexity of Directed Spanner Problems 

      Fomin, Fedor; Golovach, Petr; Lochet, William; Misra, Pranabendu; Saurabh, Saket; Sharma, Roohani (Journal article; Peer reviewed, 2020)
      We initiate the parameterized complexity study of minimum t-spanner problems on directed graphs. For a positive integer t, a multiplicative t-spanner of a (directed) graph G is a spanning subgraph H such that the distance ...
    • Parameterized Complexity of Directed Spanner Problems 

      Fomin, Fedor; Golovach, Petr; Lochet, William Alexandre; Misra, Pranabendu; Saurabh, Saket; Sharma, Roohani (Journal article; Peer reviewed, 2021)
      We initiate the parameterized complexity study of minimum t-spanner problems on directed graphs. For a positive integer t, a multiplicative t-spanner of a (directed) graph G is a spanning subgraph H such that the distance ...
    • Parameterized Complexity of Feature Selection for Categorical Data Clustering 

      Bandyapadhyay, Sayan; Fomin, Fedor; Golovach, Petr; Simonov, Kirill (Journal article; Peer reviewed, 2021)
      We develop new algorithmic methods with provable guarantees for feature selection in regard to categorical data clustering. While feature selection is one of the most common approaches to reduce dimensionality in practice, ...
    • The Parameterized Complexity of Guarding Almost Convex Polygons 

      Agrawal, Akanksha; Knudsen, Kristine Vitting Klinkby; Lokshtanov, Daniel; Saurabh, Saket; Zehavi, Meirav (Journal article; Peer reviewed, 2020)
      The Art Gallery problem is a fundamental visibility problem in Computational Geometry. The input consists of a simple polygon P, (possibly infinite) sets G and C of points within P, and an integer k; the task is to decide ...
    • Parameterized complexity of PCA 

      Fomin, Fedor; Golovach, Petr; Simonov, Kirill (Journal article; Peer reviewed, 2020)
      We discuss some recent progress in the study of Principal Component Analysis (PCA) from the perspective of Parameterized Complexity.
    • Parameterized streaming algorithms for min-ones d-SAT 

      Agrawal, Akanksha; Bonnet, Édouard; Curticapean, Radu; Miltzow, Tillmann; Saurabh, Saket; Biswas, Arindam; Brettell, Nick; Marx, Dániel; Raman, Venkatesh (Journal article; Peer reviewed, 2019)
      In this work, we initiate the study of the Min-Ones d-SAT problem in the parameterized streaming model. An instance of the problem consists of a d-CNF formula F and an integer k, and the objective is to determine if F has ...
    • Paraneoplastic and Other Autoimmune Encephalitides: Antineuronal Antibodies, T Lymphocytes, and Questions of Pathogenesis 

      Greenlee, John E.; Carlson, Noel G.; Abbatemarco, Justin R.; Herdlevær, Ida Ajvazi; Clardy, Stacey L.; Vedeler, Christian Alexander (Journal article; Peer reviewed, 2022)
      Autoimmune and paraneoplastic encephalitides represent an increasingly recognized cause of devastating human illness as well as an emerging area of neurological injury associated with immune checkpoint inhibitors. Two ...
    • Paraphrase or parasite? The Semiotic Stories of Translation 

      Gorlée, Dinda (Journal article; Peer reviewed, 2020)
      Translation, for Saussure, assumed the codified rule of language respecting the difference between synchronic and diachronic linguistics. Translation may be regarded as a theoretical possibility, though impossible for the ...
    • Parasite development affect dispersal dynamics; infectivity, activity and energetic status in cohorts of salmon louse copepodids 

      Skern-Mauritzen, Rasmus; Sissener, Nini; Sandvik, Anne Dagrun; Meier, Sonnich; Sævik, Pål Næverlid; Skogen, Morten D.; Vågseth, Tone; Dalvin, Sussie; Skern-Mauritzen, Mette; Bui, Samantha (Journal article; Peer reviewed, 2020)
      The salmon louse, Lepeophtheirus salmonis, is a parasitic copepod infecting wild and farmed salmonid fishes in the northern hemisphere. It has a direct lifecycle with a planktonic dispersal phase and an infective copepodid ...
    • Parent's self-reported tooth brushing and use of fluoridated toothpaste: Associations with their one-year-old child's preventive oral health behaviour 

      Suokko, Hanna; Tolvanen, Mimmi; Virtanen, Jorma; Suominen, Auli; Karlsson, Linnea; Karlsson, Hasse; Lahti, Satu (Journal article; Peer reviewed, 2022)
      Objective The aim of the study was to examine if the tooth brushing frequency and use of fluoridated toothpaste of the mother and father were associated with the tooth brushing frequency and use of fluoridated toothpaste ...
    • Parent-child communication about sexual issues in Zambia: a cross sectional study of adolescent girls and their parents 

      Isaksen, Katja; Musonda, Patrick; Sandøy, Ingvild Fossgard (Journal article; Peer reviewed, 2020)
      Background Parent-child communication about sexual issues can reduce risky sexual behaviour amongst adolescents. Risky sexual behaviour is of concern in sub-Saharan Africa where the prevalence of early pregnancy, unsafe ...
    • Parental age and birth defects: a sibling study 

      Hvide, Hans K.; Johnsen, Julian Vedeler; Salvanes, Kjell Gunnar (Journal article; Peer reviewed, 2021)
      Higher parental age at childbearing has generated much attention as a potential risk factor for birth disorders; however, previous research findings are mixed. Existing studies have exploited variation in parental age ...