A few salient features of dissipative solitons in crystal-like lattices of active units

2021 ◽  
Vol 150 ◽  
pp. 111179
Author(s):  
N.P. Chetverikov ◽  
W. Ebeling ◽  
E. del Rio ◽  
K.S. Sergeev ◽  
M.G. Velarde
2003 ◽  
Vol 762 ◽  
Author(s):  
J. David Cohen

AbstractThis paper first briefly reviews a few of the early studies that established some of the salient features of light-induced degradation in a-Si,Ge:H. In particular, I discuss the fact that both Si and Ge metastable dangling bonds are involved. I then review some of the recent studies carried out by members of my laboratory concerning the details of degradation in the low Ge fraction alloys utilizing the modulated photocurrent method to monitor the individual changes in the Si and Ge deep defects. By relating the metastable creation and annealing behavior of these two types of defects, new insights into the fundamental properties of metastable defects have been obtained for amorphous silicon materials in general. I will conclude with a brief discussion of the microscopic mechanisms that may be responsible.


Genetics ◽  
1999 ◽  
Vol 153 (2) ◽  
pp. 573-583 ◽  
Author(s):  
Henriette M Foss ◽  
Kenneth J Hillers ◽  
Franklin W Stahl

AbstractSalient features of recombination at ARG4 of Saccharomyces provoke a variation of the double-strand-break repair (DSBR) model that has the following features: (1) Holliday junction cutting is biased in favor of strands upon which DNA synthesis occurred during formation of the joint molecule (this bias ensures that cutting both junctions of the joint-molecule intermediate arising during DSBR usually leads to crossing over); (2) cutting only one junction gives noncrossovers; and (3) repair of mismatches that are semirefractory to mismatch repair and/or far from the DSB site is directed primarily by junction resolution. The bias in junction resolution favors restoration of 4:4 segregation when such mismatches and the directing junction are on the same side of the DSB site. Studies at HIS4 confirmed the predicted influence of the bias in junction resolution on the conversion gradient, type of mismatch repair, and frequency of aberrant 5:3 segregation, as well as the predicted relationship between mismatch repair and crossing over.


2021 ◽  
pp. 103786
Author(s):  
Dongdong Han ◽  
Yijie Wang ◽  
Zhanqiang Hui ◽  
Zhixing Zhang ◽  
Kaili Ren ◽  
...  

Author(s):  
Kapil Sharma ◽  
Naresh Surineni ◽  
Sayani Das ◽  
Shivajirao L. Gholap

A concise and divergent chiron approach for the first total synthesis of (+)-Pseudonocardide A, (+)-Pseudonocardide C and an epimer of ent-Pseudonocardide D is reported starting from D-ribose. The salient features...


2020 ◽  
Vol 6 (4) ◽  
pp. 178-179
Author(s):  
Santa Heede ◽  
Stephan Johannes Linke

Heavy eye syndrome is an important type of myopia-induced strabismus. We provide an overview of heavy eye syndrome, from its history to its most salient features. The theory of the orbital and rectus muscle pulley system as it relates to heavy eye syndrome and the prevailing theories on the pathophysiology of heavy eye syndrome in the current literature are discussed. We also highlight the presentation of heavy eye syndrome, its typical features on imaging, and differential diagnosis. Finally, we provide an overview on the management of heavy eye syndrome, including a description of several current surgical techniques.


Author(s):  
Steve Cooke

AbstractAnimal agriculture predominantly involves farming social animals. At the same time, the nature of agriculture requires severely disrupting, eliminating, and controlling the relationships that matter to those animals, resulting in harm and unhappiness for them. These disruptions harm animals, both physically and psychologically. Stressed animals are also bad for farmers because stressed animals are less safe to handle, produce less, get sick more, and produce poorer quality meat. As a result, considerable efforts have gone into developing stress-reduction methods. Many of these attempt to replicate behaviours or physiological responses that develop or constitute bonding between animals. In other words, humans try to mitigate or ameliorate the damage done by preventing and undermining intraspecies relationships. In doing so, the wrong of relational harms is compounded by an instrumentalisation of trust and care. The techniques used are emblematic of the welfarist approach to animal ethics. Using the example of gentle touching in the farming of cows for beef and dairy, the paper highlights two types of wrong. First, a wrong done in the form of relational harms, and second, a wrong done by instrumentalising relationships of care and trust. Relational harms are done to nonhuman animals, whilst instrumentalisation of care and trust indicates an insensitivity to morally salient features of the situation and a potential character flaw in the agents that carry it out.


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