Results 11 to 20 of about 724,758 (269)
Characterizing polygonality in biological structures [PDF]
Several systems involve spatial arrangements of elements such as molecules or cells, the characterization of which bears important implications to biological and physical investigations. Traditional approaches to quantify spatial order and regularity have relied on nearest neighbor distances or the number of sides of cells.
Costa, Luciano da Fontoura +2 more
openaire +3 more sources
Structural characterization of polysaccharide from jujube (Ziziphus jujuba Mill.) fruit
Highlights Structural characteristics of PZMP4 were analyzed by HPGPC, GC, FT-IR, GC-MS, NMR, SEM and AFM. PZMP4 mainly consisted of (1→4)-linked GalpA with three branches boned to O-3.
Xiaolong Ji +5 more
doaj +1 more source
The neurotrophins, i.e., Nerve Growth Factor (NGF), Brain-Derived Neurotrophic Factor (BDNF), Neurotrophin 3 (NT3) and Neurotrophin 4 (NT4), are known to play a range of crucial functions in the developing and adult peripheral and central nervous systems.
S. Covaceuszach +3 more
doaj +1 more source
Processing and characterization of CaTiO3 perovskite ceramics [PDF]
Calcium titanate (CaTiO3) ceramics with perovskite structure were produced by solid state reaction. Calcium carbonate (CaCO3) and titanium dioxide (TiO2) were mixed (in molar ratios 1/1 and 3/2), and the obtained mixtures were calcined at 1150 °C in ...
Guilherme Gralik +4 more
doaj +1 more source
A Structural Characterization of Human SCO2 [PDF]
Human Sco2 is a mitochondrial membrane-bound protein involved in copper supply for the assembly of cytochrome c oxidase in eukaryotes. Its precise action is not yet understood. We report here a structural and dynamic characterization by NMR of the apo and copper(I) forms of the soluble fragment.
BANCI, LUCIA +6 more
openaire +3 more sources
Polysaccharide is widely distributed in natural resources, and currently attracts scientists' attention for their various bio‐functions including immunomodulatory activity, hypoglycemic activity, hypolipidemic activity, antitumor activity, promoting ...
Xiaojun Huang +6 more
doaj +1 more source
Structural Characterization of Nitrimyoglobin
Nitrimyoglobin was formed in greater than 94% yield by a simple reaction between excess nitrite and horse heart metmyoglobin at pH 5.5. This dark green pigment was shown by 1H NMR spectroscopy to be a single, pure product with a well defined tertiary structure that is highly similar to the starting myoglobin.
L L, Bondoc, R, Timkovich
openaire +2 more sources
Community Structure Characterization [PDF]
This entry discusses the problem of describing some communities identified in a complex network of interest, in a way allowing to interpret them. We suppose the community structure has already been detected through one of the many methods proposed in the literature. The question is then to know how to extract valuable information from this first result,
Vincent Labatut, Günce Keziban Orman
openaire +2 more sources
Development and Characterization of as-cast Ti-20Ta-Nb Aiming Biomedical Applications [PDF]
The present paper aims to develop and investigate Ti system alloys with the following weight compositions: Ti-20Ta, Ti-20Ta-10Nb, Ti-20Ta-20Nb, and Ti-20Ta-30Nb. These alloys are intended to contribute to the area of orthopedic implants.
Marcia Almeida de Amaral Arcos da Silva +7 more
doaj +1 more source
A Structurally Characterized Fluoroalkyne
AbstractThe facile synthesis of a stable and isolable compound with a fluoroalkynyl group, M−C≡CF, is reported. Reaction of [Ru(C≡CH)(η5‐C5Me5)(dppe)] with an electrophilic fluorinating agent (NFSI) results in the formation of the fluorovinylidene complex [Ru(=C=CHF)(η5‐C5Me5)(dppe)][N(SO2Ph)2].
Lewis M. Hall +5 more
openaire +4 more sources

