Results 21 to 30 of about 5,641,921 (211)

Canopy gaps in two virgin beech forest reserves in Slovakia

Journal of Forest Science, 2005
The formation, size distribution and percentage of gaps in two virgin deciduous forests are presented in two case studies. Gaps are defined as openings in the canopy above 2/3 of stand height.
L. DRÖßER, B. Von Lüpke
doaj   +1 more source

Effects of gap size and within-gap position on seedlings establishment in silver fir stands

iForest - Biogeosciences and Forestry, 2008
The conversion of pure conifer plantations into stands with heterogeneous structure and composition is a current silvicultural challenge in Italy. A silvicultural system aiming to the regeneration of natural forests by means of openings in the canopy ...
Albanesi E, Gugliotta OI, Mercurio I, Mercurio R   +3 more
doaj   +1 more source

Gap-Size-Dependent Effective Phase Transition in Metasurfaces of Closed-Ring Resonators

Crystals, 2021
We theoretically investigate a metal-to-insulator transition in artificial two-dimensional (2D) crystals (i.e., metasurfaces) of tightly coupled closed-ring resonators.
Seojoo Lee, Ji-Hun Kang
doaj   +1 more source

Impacts of the gap size between two bluff bodies on the flow field within the gap [PDF]

, 2017
When two bluff bodies is in close tandem, i.e, the distance between blocks D is less than half of the height of the body H, the flow field is very similar to that in the gap between tractor and trailer in a truck, and hence understanding such a flow ...
Yang, Z., Lu, Y., Charles, T.
core  

Size-Dependent Band-Gap and Molar Absorption Coefficients of Colloidal CuInS2 Quantum Dots

, 2018
The knowledge of the quantum dot (QD) concentration in a colloidal suspension and the quantitative understanding of the size-dependence of the band gap of QDs are of crucial importance from both applied and fundamental viewpoints.
Ting Yu (156230), Xiaobin Xie (494230), de Mello Donega, Celso, Chenghui Xia (4050154), Christina van Oversteeg (5624048), Xia, Chenghui, Hans C. Gerritsen (1879777), Oversteeg, Christina van, Weiwei Wu (244139), Gerritsen, Hans C, Celso de Mello Donega (1246887), Xie, Xiaobin, Wu, Weiwei, Yu, Ting, Condensed Matter and Interfaces, Sub Molecular Biophysics, Sub Inorganic Chemistry and Catalysis, Sub Soft Condensed Matter, Soft Condensed Matter and Biophysics, Sub Condensed Matter and Interfaces   +19 more
core   +1 more source

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen, Calogero Virgone, Antje Redlich, Michael Abele, Ricardo Lopez‐Almaraz, Tal Ben‐Ami, Ewa Bien, Gianni Bisogno, Maja Mazic Cesen, Andrea Ferrari, Malgorzata A. Krawczyk, Yves Reguerre, Dominik T. Schneider, Ines B. Brecht, Charlotte Rigaud, Bilgehan Yalcin, Rainer Claus, Christian Vokuhl, Constantin Lapa, Jörg Fuchs, Segolene Hescot, Thomas Walter, Julien Hadoux, Daniel Orbach   +23 more
wiley   +1 more source

Beam-Size-Invariant Spectropolarimeters Using Gap-Plasmon Metasurfaces [PDF]

, 2017
Metasurfaces enable exceptional control over the light with surface-confined planar components, offering the fascinating possibility of very dense integration and miniaturization in photonics.
Chen, Yiting, Vladimir A. Zenin (1466833), Yiting Chen, Pors, Anders Lambertus, Fei Ding, Zenin, Volodymyr; id_orcid, Ding, Fei; id_orcid, Anders Pors, Yiting Chen (3823189), Anders Pors (1635436), Sergey I. Bozhevolnyi (1466827), Vladimir A. Zenin, Sergey I. Bozhevolnyi, Fei Ding (134577), Bozhevolnyi, Sergey I.; id_orcid   +14 more
core   +1 more source

Solid Pseudopapillary Neoplasm of the Pancreas in Children and Adolescents: Expert Recommendations

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Solid pseudopapillary neoplasm of the pancreas (SPN) is a rare low‐grade malignant exocrine pancreatic tumor, mostly discovered during the second decade of life in females, with a very good prognosis, provided microscopically complete surgical excision is achieved.
Sabine Irtan, Michael Abele, Calogero Virgone, Michaela Kuhlen, Ricardo Lopez‐Almarez, Tal Ben‐Ami, Ewa Bien, Maja Cesen, Malgorzata A. Krawczyk, Andrea Ferrari, Gianni Bisogno, Yves Reguerre, Dominik T. Schneider, Louise Galmiche, Jorg Fuchs, Sarah Braungart, Bilgehan Yalcin, Ines B. Brecht, Daniel Orbach   +18 more
wiley   +1 more source

Ovarian Sex Cord Stromal Tumors in Children and Adolescents—The European Standard Clinical Practice Recommendations

Pediatric Blood &Cancer, EarlyView.
ABSTRACT As part of the European Cooperative Study Group for Paediatric Rare Tumours initiative, we developed standard clinical practice guidelines for ovarian sex cord stromal tumors, based on comprehensive national and international cohort analyses, literature review, and a final expert consensus conference.
Dominik T. Schneider, Kris‐Ann Schultz, Nora Schnitzler, Michael Abele, Tal Ben‐Ami, Ewa Bien, Gianni Bisogno, Ines B. Brecht, Maja Cesen, Andrea Ferrari, Michaela Kuhlen, Malgorzata A. Krawczyk, Ricardo Lopez‐Almaraz, Yves Reguerre, Calogero Virgone, Daniel Orbach   +15 more
wiley   +1 more source

Small gaps support higher understory diversity in subtropical Pinus massoniana Lamb. plantations

Frontiers in Forests and Global Change
Examining the influences of forest gap size and within-gap position on microclimate and understory species diversity provides a scientific foundation for improving understory habitat quality and biodiversity recovery.
Jianfeng Li, Xunzhi Ouyang, Zao Zhang, Liping Zheng, Ping Pan, Huiqin Lin   +5 more
doaj   +1 more source