Results 91 to 100 of about 108,124 (351)

Developmental evidence of acrocarpy in Hedwigia ciliata (Musci: Hedwigiaceae) [PDF]

open access: yes, 1990
The growth habit of the Hedwigiaceae has been described variously as acrocarpous, pseudopleurocarpous, or pleurocarpous. Anatomical evidence presented here indicates that Hedwigia ciliata is acrocarpous. The archegonia are terminal on the main shoot, and
De Luna, Efrain
core  

GPU-based ultra-fast direct aperture optimization for online adaptive radiation therapy

open access: yes, 2010
Online adaptive radiation therapy (ART) has great promise to significantly reduce normal tissue toxicity and/or improve tumor control through real-time treatment adaptations based on the current patient anatomy.
Bazaraa M   +21 more
core   +1 more source

NFDI MatWerk Ontology (MWO): A BFO‐Compliant Ontology for Research Data Management in Materials Science and Engineering

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents the NFDI‐MatWerk Ontology (MWO), a Basic Formal Ontology‐based framework for interoperable research data management in materials science and engineering (MSE). Covering consortium structures, research data management resources, services, and instruments, MWO enables semantic integration, Findable, Accessible, Interoperable, and ...
Hossein Beygi Nasrabadi   +4 more
wiley   +1 more source

TUZLU (NaCI) KOŞULLAR ALTINDAKİ TOHUM ÇİMLENMESİ, FİDE BÜYÜMESİ VE YAPRAK ANATOMİSİ ÜZERİNE TRİAKONTANOL ÖN UYGULAMASININ ETKİLERİ

open access: yesSüleyman Demirel Üniversitesi Fen-Edebiyat Fakültesi Fen Dergisi, 2009
Özet: Bu çalışmada, tuzlu koşullar altında arpanın tohum çimlenmesi, fide büyümesi ve yaprak anatomisi üzerine triakontanol ön uygulamasının etkileri araştırılmıştır.
Kürşat ÇAVUŞOĞLU
doaj  

Candidate regulators of Early Leaf Development in Maize Perturb Hormone Signalling and Secondary Cell Wall Formation When Constitutively Expressed in Rice

open access: yesScientific Reports, 2017
All grass leaves are strap-shaped with a series of parallel veins running from base to tip, but the distance between each pair of veins, and the cell-types that develop between them, differs depending on whether the plant performs C3 or C4 photosynthesis.
Peng Wang   +17 more
doaj   +1 more source

A re-evaluation of Cheilolejeunea subgenus Xenolejeunea [PDF]

open access: yes, 1992
Cheilolejeunea subgenus Xenolejeunea Kachroo & Schust. is emended to account for variability observed in stem anatomy and lobule structure. Cheilolejeunea subgenus Tegulilejeunea Schust. is reduced to synonymy with subgenus Xenolejeunea.
Thiers, Barbara M.
core  

Leaf anatomy of Agropyron Gaertn. (Gramineae) in Turkey

open access: yesTurkish Journal of Botany, 2011
Agropyron cristatum (L.) Gaertn. is represented by 2 subspecies in Turkey, namely subsp. incanum (Nabelek) Melderis and subsp. pectinatum (M.Bieb.) Tzvelev. This study examines the taxonomic significance of the leaf properties of the taxa of Agropyron Gaertn., comprising diagnostic anatomical features obtained from leaf transverse sections as well as ...
Mavi, D. Ozlem, Dogan, Musa, Cabi, Evren
openaire   +2 more sources

On the Influence of Antioxidants and Recycled MgO–C Source Material on the Mechanical Properties of Carbon‐Bonded Magnesia Refractories

open access: yesAdvanced Engineering Materials, EarlyView.
The presented study focuses on the fracture behaviour of carbon‐bonded magnesia MgO–C refractories, where environmentally friendly fructose, collagen and lignin serve as temporary binding agents. The partial substitution of the source material with recycled MgO–C reduces the fracture resistance, which can be counteracted by the additional introduction ...
Marc Neumann   +6 more
wiley   +1 more source

Leaf anatomy of the South African Danthonieae (Poaceae). XVIII. Centropodia mossamedensis

open access: yesBothalia: African Biodiversity & Conservation, 1989
The leaf blade anatomy of Centropodia mossamedensis (Rendle) T. A. Cope [=  Asthenatherum mossamedense (Rendle) Conert] is described and illustrated. This description is based on freshly fixed material and confirms that this species has Kranz anatomy ...
R. P. Ellis
doaj   +1 more source

Removing Oxide Layers and Retaining Oxide‐Free Steel Surfaces by Polishing in Oxygen‐Free Atmosphere

open access: yesAdvanced Engineering Materials, EarlyView.
In this study, the efficacy of wet mechanical polishing under an oxygen‐free atmosphere for deoxidation and the retention of an oxide‐free steel surface are elucidated using X‐ray photoelectron spectroscopy. The methodology proved successful; however, the results were highly dependent on the preparation of the solvents used to clean the samples after ...
Friedrich Bürger   +2 more
wiley   +1 more source

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