Results 41 to 50 of about 181,456 (272)

Active DNA Demethylation in Plant Companion Cells Reinforces Transposon Methylation in Gametes [PDF]

Science, 2012
Intergenerational Transposable Shutdown Transposable elements (TEs) are a potential threat, especially to the germline genome. In many eukaryotes, TEs are shut down by DNA methylation and/or small-RNA–mediated silencing.
Ibarra, Christian A, Feng, Xiaoqi, Schoft, Vera K, Hsieh, Tzung-Fu, Uzawa, Rie, Rodrigues, Jessica A, Zemach, Assaf, Chumak, Nina, Machlicova, Adriana, Nishimura, Toshiro, Rojas, Denisse, Fischer, Robert L, Tamaru, Hisashi, Zilberman, Daniel   +13 more
openaire   +3 more sources

PD-L1 testing for lung cancer in the UK: recognizing the challenges for implementation. [PDF]

, 2016
A new approach to the management of non-small-cell lung cancer (NSCLC) has recently emerged that works by manipulating the immune checkpoint controlled by programmed death receptor 1 (PD-1) and its ligand programmed death ligand 1 (PD-L1).
Booton, R, Cane, P, Cree, IA, Gosney, J, Ibrahim, M, Kerr, K, Lal, R, Lewanski, C, Navani, N, Nicholson, AG, Nicolson, M, Summers, Y   +11 more
core   +2 more sources

Changes of ultrastructure and cytoplasmic free calcium in Gladiolus x hybridus Van Houtte roots infected by aster yellows phytoplasma

Acta Societatis Botanicorum Poloniae, 2011
Roots of Gladiolus x hybridus Van Houtte plants infected with aster yellows phytoplasma were examined. The infected plants had a reduced root system in comparison to control plants.
Anna Rudzińska-Langwald, Maria Kamińska   +1 more
doaj   +1 more source

Organoids: a promising new in vitro platform in livestock and veterinary research

Veterinary Research, 2021
Organoids are self-organizing, self-renewing three-dimensional cellular structures that resemble organs in structure and function. They can be derived from adult stem cells, embryonic stem cells, or induced pluripotent stem cells.
Soumya K. Kar, Jerry M. Wells, Esther D. Ellen, Marinus F. W. te Pas, Ole Madsen, Martien A. M. Groenen, Henri Woelders   +6 more
doaj   +1 more source

Considerations on the Role of Fall-Back Discs in the Final Stages of the Common Envelope Binary Interaction

, 2016
The common envelope interaction is thought to be the gateway to all evolved compact binaries and mergers. Hydrodynamic simulations of the common envelope interaction between giant stars and their companions are restricted to the dynamical, fast, in ...
De Marco, Orsola, Kuruwita, Rajika L., Staff, Jan   +2 more
core   +1 more source

A tale of two neglected systems - structure and function of the thin- and thick-walled sieve tubes in monocotyledonous leaves.

Frontiers in Plant Science, 2013
There is a large body of information relating to the ontogeny, development and the vasculature of eudicotyledonous leaves. However there is less information available concerning the vascular anatomy of monocotyledonous leaves.
Ted eBotha
doaj   +1 more source

Tumor-associated macrophages: Prognostic and therapeutic targets for cancer in humans and dogs

Frontiers in Immunology, 2023
Macrophages are ancient, phagocytic immune cells thought to have their origins 500 million years ago in metazoan phylogeny. The understanding of macrophages has evolved to encompass their foundational roles in development, homeostasis, tissue repair ...
Rachel V. Brady, Douglas H. Thamm, Douglas H. Thamm   +2 more
doaj   +1 more source

A Distributed Epigenetic Shape Formation and Regeneration Algorithm for a Swarm of Robots

, 2018
Living cells exhibit both growth and regeneration of body tissues. Epigenetic Tracking (ET), models this growth and regenerative qualities of living cells and has been used to generate complex 2D and 3D shapes.
Cheng Jimming, Fontana Alessandro, Kumar Vignesh, Schmickl Thomas   +3 more
core   +1 more source

The effect of a wider initial separation on common envelope binary interaction simulations

, 2016
We present hydrodynamic simulations of the common envelope binary interaction between a giant star and a compact companion carried out with the adaptive mesh refinement code ENZO and the smooth particle hydrodynamics code PHANTOM. These simulations mimic
De Marco, Orsola, Herwig, Falk, Iaconi, Roberto, Passy, Jean-Claude, Price, Daniel, Reichardt, Thomas, Staff, Jan, Wurster, James   +7 more
core   +1 more source

The HIT Network for Children and Adolescents With CNS Tumors Facilitates Improvements of Diagnostic Assessments, Multimodal Treatments, Individual Counseling, and Research in Germany, Austria, and Switzerland

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background The HIT network was established in 2000 to create a population‐based structure aiming to improve survival rates and reduce late effects for children with central nervous system (CNS) tumors by conducting comprehensive clinical trials.
Stefan Rutkowski, Michael C. Frühwald, Gudrun Fleischhack, Stephan Tippelt, Pablo Hernáiz‐Driever, Olaf Witt, Astrid Gnekow, Christof Kramm, Matthias Eyrich, Johannes E. A. Wolf, Hermann Müller, Carsten Friedrich, Uwe R. Kordes, Denise Obrecht‐Sturm, Petra Ketteler, Barbara von Zezschwitz, Pascal Johann, Dominik Sturm, Karoline Nemes, Stefan Schönberger, Till Milde, Brigitte Bison, Monika Warmuth‐Metz, Torsten Pietsch, Ulrich Schüller, Arend Koch, David Capper, Martin Hasselblatt, Christian Thomas, Christian Hagel, Stefan M. Pfister, Felix Sahm, David T. W. Jones, Martin U. Schuhmann, Jürgen Krauss, Pedram Emami, Ahmed El Damaty, Rolf D. Kortmann, Rudolf Schwarz, Jürgen Debus, Mechthild Krause, Fabian Pohl, Holger Ottensmeier, Lisa Bußenius, Katja Baust, Andreas Faldum, Cecile Ronckers, Desiree Grabow, Martin Benesch, Thomas Perwein, Karin Dieckmann, Irene Slavc, Johannes Gojo, Nicolas U. Gerber, André O. von Bueren, Katrin Scheinemann, Gabriele Calaminus, Beate Timmermann, Ulrich‐Wilhelm Thomale, Martin Mynarek   +59 more
wiley   +1 more source