Advancing Rational Control of Peptide–Surface Complexes

Author(s):  
Siva Dasetty ◽  
Sapna Sarupria
Author(s):  
G.L. Decker ◽  
M.C. Valdizan

A monoclonal antibody designated MAb 1223 has been used to show that primary mesenchyme cells of the sea urchin embryo express a 130-kDa cell surface protein that may be directly involved in Ca2+ uptake required for growth of skeletal spicules. Other studies from this laboratory have shown that the 1223 antigen, although in relatively low abundance, is also expressed on the cell surfaces of unfertilized eggs and on the majority of blastomeres formed prior to differentiation of the primary mesenchyme cells.We have studied the distribution of 1223 antigen in S. purpuratus eggs and embryos and in isolated egg cell surface complexes that contain the cortical secretory vesicles. Specimens were fixed in 1.0% paraformaldehyde and 1.0% glutaraldehyde and embedded in Lowicryl K4M as previously reported. Colloidal gold (8nm diameter) was prepared by the method of Mulpfordt.


2002 ◽  
Vol 66 (1) ◽  
pp. 99 ◽  
Author(s):  
Benjamin C. Bostick ◽  
Scott Fendorf ◽  
Mark O. Barnett ◽  
Phillip M. Jardine ◽  
Scott C. Brooks
Keyword(s):  

Author(s):  
A. A. Korneev

The article presents the results of the study of the filament modes of electronic lamps and ensuring the rational temperature of the cathode. A brief description and comparative analysis of existing methods with the proposed author are given. The dependence diagrams obtained as a result of a real experiment are presented. A new method of rational control of the electric vacuum devices (EVP) filament mode is proposed, thereby increasing the reliability and increasing the durability of the EVP during operation in high-quality and expensive complex technical systems. According to the results of the study, a new specialized electronic device was developed, which allowed to smoothly regulate the supply of the filament voltage, thereby ensuring the rational control of the operation of the EVP. The technique and specialized electronic device are developed on the basis of modern scientific and technical achievements. This made it possible to increase the reliability and efficiency of the electronic control system for solving critical tasks. When implementing the developed device, the problem of import substitution was solved.


2017 ◽  
Vol 45 (9) ◽  
pp. 1563-1571 ◽  
Author(s):  
Yue Hu ◽  
Bin Wang ◽  
Lian Liu ◽  
Gai Li ◽  
Xiantao Huang ◽  
...  

We developed a multidimensional measure of lottery playing health, simultaneously considering the positive and negative perspectives of playing the lottery. Participants were 4,521 sports lottery players. The final version of the Lottery Playing Health Scale (LPHS) comprised 17 items divided across 5 factors: enjoyable experience, favorable socialization, rational control, negative mood, and social harm. The LPHS showed good psychometric properties, including level of fit to the data, discriminant validity, and reliability. Several lottery player characteristics (i.e., age, perceived risk, and urge to play) were found to be significant predictors of players' LPHS scores. This study represents an initial effort to understand the multidimensional effects of lottery playing on health.


1980 ◽  
Vol 45 (6) ◽  
pp. 1780-1784 ◽  
Author(s):  
Atanas Andreev ◽  
Lachezar Prahov ◽  
Dimitar Shopov

The formation of Oxygen paramagnetic adducts of Co(II) containing ion-exchange resins in the presence of adsorbed ethylenediamine has been found. The EPR parameters of a complex of the type Co(III) (en)2O-2 and of O-2 species formed in the presence of Co(en)2+3 have been described. The catalytic properties of Co-ethylenediamine surface complexes with respect to the hydrogen peroxide decomposition reaction have been investigated and a probable mechanism has been suggested.


2021 ◽  
Author(s):  
Peng Du ◽  
Laihui Luo ◽  
Yafei Hou ◽  
Weiping Li

Rational control of thermal quenching performance is crucial for achieving high quality luminescent thermometer. Herein, we report the Tb3+/Yb3+-coactivated Y2Mo3O12 (YMO) negative thermal expansion (NTE) microparticles with color-tunable emissions. Irradiated...


AJS Review ◽  
1977 ◽  
Vol 2 ◽  
pp. 1-44 ◽  
Author(s):  
Walter I. Ackerman

The justification of plans and programs is a necessary condition of the relationship between systems of education, both obligatory and voluntary, and the publics they serve. Those who are responsible for the conduct of the educational enterprise in general and the schooling of the young in particular must provide those who support the system, financially and otherwise, with acceptable and defensible reasons for the efforts and activities of the schools. The idea of justification in education rests on the assumption that the process of schooling, whatever its form and content, is subject to rational control and that the authority for the conduct of schools is derived from the principles inherent in the justification offered. A proferred justification is most effective and likely of acceptance when the positions it generates on educational issues fit the general fabric of ideals and aspirations of the society to which it is addressed. If, as we believe, justification is a necessary part of the rhetoric which surrounds legislatively determined and state maintained school systems—i.e., systems whose right to existence is not subject to question or doubt in any modern society and where attendance is required by law—then it follows that it is of even greater significance for voluntary school systems which lack the coercive power of their governmental counterparts—i.e., Jewish education.


1970 ◽  
Vol 46 (4) ◽  
pp. 487-494
Author(s):  
ATM Kamrul Hasan

Multiplicity of active-site in heterogeneous Ziegler-Natta catalysts and its correlation with polymer microstructure was studied through the surface structure analysis of catalyst by computer simulation of X-ray Photoelectron Spectroscopy (XPS) data and microstructure investigation of polypropylene chains based on the deconvolution of the molecular weight distribution curves by multiple Flory most probable distributions using Gel Permeation Chromatography (GPC) method. The number and relative intensities of these peaks were found correlated to the distribution of multiple active sites. In this investigation, four individual categories of active sites were identified, each of which yields polypropylene with unique properties of molecular weight and chain structure different from other active sites. The reason of the multiplicity of active sites was determined by the presence of different locations of surface titanium species coordinated with other surface atoms or molecules. These different surface complexes of active species determine the multiple active site nature of catalyst which replicates the microtacticity, molecular weight and chain microstructure distribution of polymer. Keywords: Ziegler-Natta catalyst; Multiple active sites; Flory components; Computer simulation; Deconvolution; MWD. DOI: http://dx.doi.org/10.3329/bjsir.v46i4.9596 BJSIR 2011; 46(4): 487-494


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