Results 51 to 60 of about 200,873 (295)

Mechanical properties of pressure-frozen ice under triaxial compressive stress

open access: yesJournal of Glaciology
Artificial ground freezing is an effective method for underground constructions in deep alluvium. To study the compressive strength of frozen soil under high ground pressure and high hydraulic pressure, it is necessary to understand the mechanical ...
Peixin Sun, Weihao Yang, Jukka Tuhkuri
doaj   +1 more source

Heterotropic regulation and negative homotropic cooperativity

open access: yesFEBS Open Bio, EarlyView.
We identified a structural module common to some proteins that couple negative cooperativity with heterotropic regulation, two features that rarely coexist. These proteins are ring‐like and present an ordered asymmetry whereby noncontacting subunits are symmetric, and their tertiary structure differs from that of contacting subunits.
Veronica Morea   +5 more
wiley   +1 more source

Cracking the system [PDF]

open access: yesBritish Journal of General Practice, 2008
I took a moment to listen to his breathing. My heart sank. Even without the aid of a stethoscope, it sounded like stridor and, given his age and past smoking, a bronchial carcinoma until proven otherwise. It had not been an easy trip for my Dad who, accompanied by Mum, had fallen through the system when their first connecting flight from Glasgow had ...
openaire   +2 more sources

A minimal cellulosome‐like system in Cellulosilyticum lentocellum

open access: yesFEBS Open Bio, EarlyView.
Cellulose‐degrading bacteria typically use cellulosomes, large multi‐enzyme complexes on a scaffold protein. In Cellulosilyticum lentocellum, we characterise a far smaller arrangement, a single scaffold bound to one cellulase through a single cohesin‐dockerin interaction.
John Allan   +2 more
wiley   +1 more source

Foliar Mineral Treatments for The Reduction of Melon (Cucumis melo L.) Fruit Cracking

open access: yesAgronomy, 2020
Fruit cracking affects many types of crops and is a major problem since the breakage of the surface of the fruit produces high economic losses. Numerous studies have looked at different ways to prevent this, mainly in melon, but with a low success rate ...
Alvaro Lopez-Zaplana   +3 more
doaj   +1 more source

Unravelling the origin of multiple cracking in an additively manufactured Haynes 230

open access: yesMaterials Research Letters, 2023
In this work, by using multi-scale characterizations from electron channeling contrast imaging (ECCI) to atom probe tomography (APT), we directly evidenced that the massive cracking events in the selective-laser-melted (SLMed) Haynes 230 superalloy are ...
Junyang He   +8 more
doaj   +1 more source

[18F]Fluorodeprenyl‐D2 PET as a Tool to Monitor Disease Activity in GAD65‐Ab Autoimmune Encephalitis

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To evaluate [18F]fluorodeprenyl‐D2 ([18F]F‐DED) positron‐emission tomography (PET) imaging as a biomarker of disease activity in autoimmune encephalitis (AIE) associated with glutamic acid decarboxylase 65 (GAD65) antibodies. Methods [18F]F‐DED PET was performed in 25 GAD65‐AIE patients and 8 controls using dynamic (0–60 min) and ...
Julia S. Dorneich   +19 more
wiley   +1 more source

Fluid catalytic cracking VII : preparation and characterization of catalysts : proceedings of the 7th International Symposium on Advances in Fluid Cracking Catalysts (FCCs) /

open access: yes, 2007
Since 1987, the Petroleum Division of the American Chemical Society (ACS) has sponsored at 3 year intervals an international symposium on fluid cracking catalysts (FCC) technology.
International Symposium on Advances in Fluid Cracking Catalysts(7th)   +1 more
core   +1 more source

Analysis of process variables via CFD to evaluate the performance of a FCC riser [PDF]

open access: yes, 2015
Feedstock conversion and yield products are studied through a 3D model simulating the main reactor of the fluid catalytic cracking (FCC) process. Computational fluid dynamic (CFD) is used with Eulerian-Eulerian approach to predict the fluid catalytic ...
Matos, E. M.   +9 more
core   +1 more source

Neurovascular Contacts in the Pathophysiology of Neuralgic Amyotrophy: An Observational Study

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Neuralgic amyotrophy (NA) is a prevalent, monophasic, multifocal immune‐mediated neuropathy. A distinctive characteristic of the disease is the occurrence of nerve or fascicle constrictions and torsions (NA‐associated focal nerve lesions, NAFL). The pathophysiology underlying this phenomenon remains to be fully elucidated.
Johannes Fabian Holle   +4 more
wiley   +1 more source

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