scholarly journals Analysis specification of noise structural constituent spectra in highly glazed cabins

2017 ◽  
Vol 17 (3) ◽  
pp. 96-102
Author(s):  
V. A. Bondarenko ◽  
◽  
T. A. Finochenko ◽  
Keyword(s):  
Structural Constituent

Structures Formed by Cryoprotective Agents Used in Freezc-Etching

1971 ◽  
Vol 29 ◽  
pp. 448-449
Author(s):  
G. G. Cocks ◽  
C. E. Cluthe
Keyword(s):  
Aqueous Solution ◽  
Polyethylene Oxide ◽  
Liquid Nitrogen Temperature ◽  
Ice Crystals ◽  
Etching Technique ◽  
Structural Constituent ◽  
Cryoprotective Agents ◽  
Quick Freezing ◽  
Freeze Etching ◽  
Fractured Surface

The freeze etching technique is potentially useful for examining dilute solutions or suspensions of macromolecular materials. Quick freezing of aqueous solutions in Freon or propane at or near liquid nitrogen temperature produces relatively large ice crystals and these crystals may damage the structures to be examined. Cryoprotective agents may reduce damage to the specimem, hut their use often results in the formation of a different set of specimem artifacts.In a study of the structure of polyethylene oxide gels glycerol and sucrose were used as cryoprotective agents. The experiments reported here show some of the structures which can appear when these cryoprotective agents are used.Figure 1 shows a fractured surface of a frozen 25% aqueous solution of sucrose. The branches of dendritic ice crystals surrounded hy ice-sucrose eutectic can be seen. When this fractured surface is etched the ice in the dendrites sublimes giving the type of structure shown in Figure 2. The ice-sucrose eutectic etches much more slowly. It is the smooth continuous structural constituent surrounding the branches of the dendrites.

scholarly journals CAMM Techniques for the Prediction of the Mechanical Properties of Tendons and Ligaments Nanostructures

2005 ◽  
Vol 5 ◽  
pp. 564-570
Author(s):  
Simone Vesentini ◽  
Franco M. Montevecchi ◽  
Alberto Redaelli
Keyword(s):  
Mechanical Properties ◽  
Molecular Modeling ◽  
Connective Tissue ◽  
Soft Tissues ◽  
Collagen Molecule ◽  
Computer Assisted ◽  
Mechanical Function ◽  
Top Down ◽  
Structural Constituent ◽  
Structures And Properties

Theoretical prediction of the mechanical properties of soft tissues usually relies on a top-down approach; that is analysis is gradually refined to observe smaller structures and properties until technical limits are reached. Computer-Assisted Molecular Modeling (CAMM) allows for the reversal of this approach and the performance of bottom-up modeling instead. The wealth of available sequences and structures provides an enormous database for computational efforts to predict structures, simulate docking and folding processes, simulate molecular interactions, and understand them in quantitative energetic terms. Tendons and ligaments can be considered an ideal arena due to their well defined and highly organized architecture which involves not only the main structural constituent, the collagen molecule, but also other important molecular “actors” such as proteoglycans and glycosaminoglycans. In this ideal arena each structure is well organized and recognizable, and using the molecular modeling tool it is possible to evaluate their mutual interactions and to characterize their mechanical function. Knowledge of these relationships can be useful in understanding connective tissue performance as a result of the cooperation and mutual interaction between different biological structures at the nanoscale.

scholarly journals Nuclear matrix and hnRNP share a common structural constituent associated with premessenger RNA.

1983 ◽  
Vol 2 (6) ◽  
pp. 953-960 ◽  
Author(s):  
H. Gallinaro ◽  
E. Puvion ◽  
L. Kister ◽  
M. Jacob
Keyword(s):  
Nuclear Matrix ◽  
Structural Constituent

Syntactic Complexity in Spanish Narratives

1994 ◽  
Vol 37 (3) ◽  
pp. 645-654 ◽  
Author(s):  
Vera F. Gutierrez-Clellen ◽  
Richard Hofstetter
Keyword(s):  
Relative Clauses ◽  
Developmental Differences ◽  
Spanish Language ◽  
School Age ◽  
Syntactic Complexity ◽  
Structural Constituent ◽  
Prepositional Phrases ◽  
Spanish Speaking ◽  
Language Groups ◽  
Nominal Clauses

Syntactic complexity in the movie retellings of 77 school-age Spanish-speaking children was examined using a structural constituent analysis. The results demonstrated developmental differences in the length of T-units, index of subordination, use of relative clauses, and prepositional phrases. There were also differences in the length of T-units, use of nominal clauses, and adverbial phrases across Spanish language groups. The analysis underscores the significance of subordination as a cohesive device and as an indicator of narrative proficiency.

scholarly journals Dietary Hyaluronic Acid Migrates into the Skin of Rats

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Mariko Oe ◽  
Koichi Mitsugi ◽  
Wataru Odanaka ◽  
Hideto Yoshida ◽  
Ryosuke Matsuoka ◽  
...  
Keyword(s):  
Hyaluronic Acid ◽  
Oral Intake ◽  
Horny Layer ◽  
Structural Constituent ◽  
Sd Rats ◽  
In Vivo Kinetics ◽  
Over Time ◽  
Excessive Accumulation ◽  
Expired Air

Hyaluronic acid is a constituent of the skin and helps to maintain hydration. The oral intake of hyaluronic acid increases water in the horny layer as demonstrated by human trials, but in vivo kinetics has not been shown. This study confirmed the absorption, migration, and excretion of14C-labeled hyaluronic acid (14C-hyaluronic acid).14C-hyaluronic acid was orally or intravenously administered to male SD rats aged 7 to 8 weeks. Plasma radioactivity after oral administration showed the highest level 8 hours after administration, and orally administered14C-hyaluronic acid was found in the blood. Approximately 90% of14C-hyaluronic acid was absorbed from the digestive tract and used as an energy source or a structural constituent of tissues based on tests of the urine, feces, expired air, and cadaver up to 168 hours (one week) after administration. The autoradiographic results suggested that radioactivity was distributed systematically and then reduced over time. The radioactivity was higher in the skin than in the blood at 24 and 96 hours after administration. The results show the possibility that orally administered hyaluronic acid migrated into the skin. No excessive accumulation was observed and more than 90% of the hyaluronic acid was excreted in expired air or urine.

Weldability of the MSRB Magnesium Alloy

2011 ◽  
Vol 176 ◽  
pp. 107-118 ◽  
Author(s):  
Janusz Adamiec
Keyword(s):  
Solid Solution ◽  
High Temperature ◽  
Magnesium Alloy ◽  
Intermetallic Phases ◽  
Structural Constituent ◽  
Temperature Range ◽  
Partial Tears ◽  
Recovery Temperature

This work, in combination with industrial tests of casting welding, shows that the causes of high-temperature brittleness are the partial tears of the structure and the hot cracks of both the castings, as well as the welded and padded joints. Such phenomena should be treated as irreversible failures caused by the process of crystallization that is in the area of co-existence of the solid and liquid structural constituent. Nil-strength temperature (NST), nil-ductility temperature (NDT) and ductility recovery temperature (DRT) were determined using Gleeble 3800. Obtained results enabled the defining of brittle temperature range of MSR-B magnesium alloy. The assessment of the resistance to hot fractures was conducted on the basis of the transvarestriant trial. The transvarestriant trial involves changing of strain during welding. It was stated that the range of the high-temperature brittleness is very broad, which significantly limits the application of the welding techniques to join or repair elements made of the MSRB alloy. brittleness is caused mainly by metallurgical factors, i.e. precipitation of intermetallic phases from the solid solution.

scholarly journals The retrocondylar retinaculum (Osborne’s ligament) and Struther's ligament

2021 ◽  
Vol 1 (2) ◽  
Author(s):  
Kennedy Martinez de Oliveira ◽  
Emilly Dutra Amaral Meggiolaro ◽  
Maísa de Fátima Satiro Oliveira ◽  
Giuliano Roberto Gonçalves ◽  
Lucas Nogueira Ramos ◽  
...  
Keyword(s):  
Complex Structures ◽  
Upper Limbs ◽  
Structural Constituent ◽  
Normal Human ◽  
Supracondylar Process

Many of the musculofascial and osteofibrous structures of the upper limbs, and which are of the normal human structural constituent (pattern), are notably neglected in general anatomical descriptions. Their complex structures, and sometimes controversial or incomplete descriptions, have significant implications in important neurovascular conditions, such as compressive trauma, and those of orthopedic reconstructions. Thus, we objective a detailed study, structural and historical, of the literature, on two of the most important osteofibrous formations - the retrocondylar retinaculum (Osborne's ligament), together with the aponeurosis of the flexor carpi ulnar muscle (Osborne's fascia), and the Struther's ligament in association with the supracondylar process and foramen homonym.

scholarly journals Monitoring Human Milk β-Casein Phosphorylation and O-Glycosylation Over Lactation Reveals Distinct Differences between the Proteome and Endogenous Peptidome

2021 ◽  
Vol 22 (15) ◽  
pp. 8140
Author(s):  
Kelly A. Dingess ◽  
Inge Gazi ◽  
Henk W. P. van den Toorn ◽  
Marko Mank ◽  
Bernd Stahl ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Human Milk ◽  
Antimicrobial Peptide ◽  
Casein Micelles ◽  
Healthy Life ◽  
Post Translational Modifications ◽  
Structural Constituent ◽  
Molecular Components ◽  
Peptide Phosphorylation ◽  
Proteins And Peptides

Human milk is a vital biofluid containing a myriad of molecular components to ensure an infant’s best start at a healthy life. One key component of human milk is β-casein, a protein which is not only a structural constituent of casein micelles but also a source of bioactive, often antimicrobial, peptides contributing to milk’s endogenous peptidome. Importantly, post-translational modifications (PTMs) like phosphorylation and glycosylation typically affect the function of proteins and peptides; however, here our understanding of β-casein is critically limited. To uncover the scope of proteoforms and endogenous peptidoforms we utilized mass spectrometry (LC-MS/MS) to achieve in-depth longitudinal profiling of β-casein from human milk, studying two donors across 16 weeks of lactation. We not only observed changes in β-casein’s known protein and endogenous peptide phosphorylation, but also in previously unexplored O-glycosylation. This newly discovered PTM of β-casein may be important as it resides on known β-casein-derived antimicrobial peptide sequences.

scholarly journals Identification of a structural constituent and one possible site of postembryonic formation of a teleost otolithic membrane

1997 ◽  
Vol 94 (2) ◽  
pp. 707-712 ◽  
Author(s):  
J. G. Davis ◽  
F. R. Burns ◽  
D. Navaratnam ◽  
A. M. Lee ◽  
S. Ichimiya ◽  
...  
Keyword(s):  
Structural Constituent
Sign in / Sign up

Export Citation Format

Share Document