Results 41 to 50 of about 4,368 (223)

CIT-5: a high-silica zeolite with 14-ring pores [PDF]

open access: yes, 1997
The synthesis and structure of a new zeolite, CIT-5 (California Institute of Technology Number Five), is described, which possesses one-dimensional pores comprised of 14 T-atoms (tetrahedrally coordinated silicon or aluminium atoms)
Katsuyuki Tsuji   +6 more
core   +1 more source

Methylmercury intoxication and histochemical demonstration of NADPH-diaphorase activity in the striate cortex of adult cats

open access: yesBrazilian Journal of Medical and Biological Research, 1998
The effects of methylmercury (MeHg) on histochemical demonstration of the NADPH-diaphorase (NADPH-d) activity in the striate cortex were studied in 4 adult cats. Two animals were used as control.
R.B. Oliveira   +3 more
doaj   +1 more source

Tuning the Mechanical Properties in Model Nanocomposites: Influence of the Polymer-Filler Interfacial Interactions [PDF]

open access: yes, 2011
This paper presents a study of the polymer-filler interfacial effects on filler dispersion and mechanical reinforcement in Polystyrene (PS) / silica nanocomposites by direct comparison of two model systems: un-grafted and PS-grafted silica dispersed in ...
Akcora   +44 more
core   +5 more sources

Characterisation and functionalisation of mechanically fractured graphene nanoribbons : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Nanoscience at Massey University, Manawatū, New Zealand [PDF]

open access: yes, 2017
Graphene has been heralded as the supermaterial of the future, boasting incredibly high electron mobility, thermal conductivity, and physical strength – all contained within the world’s first true 2D material, only a single atom thick.
Brooke, Samuel James
core  

On‐Tip Polymerization Method for Multimodal Characterization of Nanoparticles with Electron/Ion Imaging and Atom Probe Tomography

open access: yesSmall Methods, EarlyView.
This study presents an on‐tip polymerization method that employs a needle substrate with a designed through‐microchannel (“needle‐eye”) to retain a picoliter‐scale solution of nanoparticles. Using a resin precursor as the solution, polymerization is carried out in situ at the needle tip.
Aristide Djoulde   +8 more
wiley   +1 more source

Dismantling the genus Tarenna (Rubiaceae: Pavetteae) in Africa and Madagascar, with the description of three new genera

open access: yesTAXON, EarlyView.
Abstract As presently circumscribed, the Paleotropical genus Tarenna, belonging to the tribe Pavetteae (Rubiaceae), comprises about 200 species and has its centres of diversity in tropical Asia and Africa. Previous molecular phylogenetic studies of the tribe revealed the polyphyly of Tarenna, suggesting that the genus needs to be recircumscribed ...
Petra De Block   +3 more
wiley   +1 more source

Low cost, portable, 3D printable tissue precision slicer

open access: yesHardwareX
Slicing tissue samples into thin pieces is commonly used in histology analysis and more recently for organotypic culture when tissue samples are sliced alive.
Beatriz Martinez-Martin   +3 more
doaj   +1 more source

Construção de um micrótomo de congelamento a partir da adaptação de um micrótomo de parafina

open access: yesBrazilian Archives of Biology and Technology, 1998
A microtome for frozen sections was developed using the facilities and equipment available in our country. The requirements for making it were: 1) fast frozen of the tissue, 2) easy histological procedure, 3) no necessity of long period for preparation ...
Cesar de Mello   +3 more
doaj   +1 more source

Dental Implant Osseointegration Following Mandibular Augmentation Using 3D Printed Hydroxyapatite Blocks. An Experimental In Vivo Study

open access: yesClinical Oral Implants Research, EarlyView.
ABSTRACT Objective To evaluate the use and osseointegration of dental implants in combination with 3D‐printed hydroxyapatite (3DHA) blocks featuring gyroid porosity for large mandibular bone augmentation. Methods Mandibular lateral bone augmentation with gyroid‐3DHA blocks was performed bilaterally on four female Göttingen minipigs. After 8 or 12 weeks
Simon Systermans   +5 more
wiley   +1 more source

Anatomical and Phytochemical Studies on Benincasa hispida (Thunb.) Cogn. (Cucurbitaceae)

open access: yesNotulae Scientia Biologicae, 2019
The morphological and anatomical studies of Benincasa hispida (Thunb.) Cogn. from Nigeria was carried out with the view to reporting morphological and anatomical characteristics for the first time.
Chimezie EKEKE   +2 more
doaj   +1 more source

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