A Systematic Study of the Stability of Enzyme/Zeolitic Imidazolate Framework‐8 Composites in Various Biologically Relevant Solutions

2020 ◽  
Vol 5 (43) ◽  
pp. 13766-13774
Author(s):  
Yuan Gao ◽  
Cara M. Doherty ◽  
Xavier Mulet
1972 ◽  
Vol 1 (13) ◽  
pp. 81 ◽  
Author(s):  
J.H. Van Oarschat ◽  
A. Wevers

Stability tests on the Europoort breakwaters, situated on a shallow foreshore, clearly demonstrated the effect of the foreshore configuration on the overall stability. The present article gives a descriptionof the stability experiments and the interpretation leading to general conclusions regarding foreshore effects in combination with hydraulic conditions such as wave period, water depth and wave height. Both regular and irregular waves have been used. The experiments, carried out in commission of the Netherlands Government Department of Public Works (Rijkswaterstaat) were of an applied nature and were not directed primarily to the systematic study of foreshore effects.


Carbon ◽  
2018 ◽  
Vol 129 ◽  
pp. 207-227 ◽  
Author(s):  
O. Olaniyan ◽  
R.E. Maphasha ◽  
M.J. Madito ◽  
A.A. Khaleed ◽  
E. Igumbor ◽  
...  

2021 ◽  
Vol 23 (36) ◽  
pp. 20553-20559
Author(s):  
Han Wang ◽  
Xiao Wang ◽  
Da Li

We performed a systematic study on the defects in PbI2 of both 1T and 1H phases by DFT calculations. The stability at the neutral and charged states was calculated. The impact of the defects on the electronic properties was also discussed.


2014 ◽  
Vol 20 (47) ◽  
pp. 15611-15617 ◽  
Author(s):  
Takashi Kajiwara ◽  
Masakazu Higuchi ◽  
Daisuke Watanabe ◽  
Hideyuki Higashimura ◽  
Teppei Yamada ◽  
...  

2017 ◽  
Vol 29 (8) ◽  
pp. 2030-2054
Author(s):  
Sorinel A. Oprisan

We used the phase-resetting method to study a biologically relevant three-neuron network in which one neuron receives multiple inputs per cycle. For this purpose, we first generalized the concept of phase resetting to accommodate multiple inputs per cycle. We explicitly showed how analytical conditions for the existence and the stability of phase-locked modes are derived. In particular, we solved newly derived recursive maps using as an example a biologically relevant driving-driven neural network with a dynamic feedback loop. We applied the generalized phase-resetting definition to predict the relative-phase and the stability of a phase-locked mode in open loop setup. We also compared the predicted phase-locked mode against numerical simulations of the fully connected network.


2020 ◽  
Vol 232 ◽  
pp. 03007
Author(s):  
B. M. A. Swinton-Bland ◽  
D. J. Hinde ◽  
M. Dasgupta ◽  
D. Y. Jeung ◽  
E. Williams ◽  
...  

The production of superheavy elements through the fusion of two heavy nuclei is severely hindered by the quasifission process, which results in the fission of heavy systems before an equilibrated compound nucleus (CN) can be formed. The heaviest elements have been synthesised using 48Ca as the projectile nucleus. However, the use of 48Ca in the formation of new superheavy elements has been exhausted, thus a detailed understanding of the properties that made 48Ca so successful is required. Measurements of mass-angle distributions allow fission fragment mass distribution widths to be determined. The effect of the orientation of prolate deformed target nuclei is presented. Closed shells in the entrance channel are also shown to be more important than the stability of the formed CN in reducing the quasifission component, with reduced mass widths for reactions with the closed shell target nuclei 144Sm and 208Pb. Comparison to mass widths for 48Ti-induced reactions show a significant increase in the mass width compared to 48Ca-induced reactions, highlighting the difficulty faced in forming new superheavy elements using projectiles with higher atomic number than 48Ca.


2021 ◽  
Vol 21 (5) ◽  
pp. 2872-2878
Author(s):  
Rita Gelli ◽  
Serena Salvestrini ◽  
Francesca Ridi

The recently-discovered endogenous formation of amorphous magnesium–calcium phosphate nanoparticles (AMCPs) in human distal small intestine occurs in a complex environment, which is rich in biologically-relevant molecules and macromolecules that can shape the properties and the stability of these inorganic particles. In this work, we selected as case studies four diverse molecules, which have different properties and are representative of intestinal luminal components, namely butyric acid, lactose, gluten and peptidoglycan. We prepared AMCPs in the presence of these four additives and we investigated their effect on the features of the particles in terms of morphology, porosity, chemical nature and incorporation/adsorption. The combined use of electron microscopy, infrared spectroscopy and thermal analysis showed that while the morphology and microstructure of the particles do not depend on the type of additive present during the synthesis, AMCPs are able to incorporate a significant amount of peptidoglycan, similarly to the process in which they are involved in vivo.


1958 ◽  
Vol 148 (932) ◽  
pp. 340-352 ◽  

In most cases of enzymic induction (‘adaptation’) the specifically increased rate of enzyme production evoked by the presence of the inducer in the external environment returns to normal immediately the inducer is removed. However, the situation is not always so clear-cut. The changes in the cell underlying the phenomenon of enzyme induction have long been known to be—from a genetical standpoint—transitory. But the mechanism of enzymic reversion (‘de-adaptation’) has not yet been the subject of much systematic study. Most cell characters presumably have an underlying enzymic basis, and in most cases enzyme induction, even if under some sort of nuclear genetic control which determines its scope, appears to be almost certainly a cytoplasmic function. It therefore seems likely that a study of the specific gain and loss of enzymic function that occurs during enzymic adaptation or de-adaptation will prove to have some bearing on the problems of growth, variation and differentiation under conditions where the genetic background may be supposed to remain constant.


2018 ◽  
Vol 259 ◽  
pp. 171-177 ◽  
Author(s):  
Huan Wang ◽  
Meipeng Jian ◽  
Zenglu Qi ◽  
Yongfeng Li ◽  
Ruiping Liu ◽  
...  

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