BRST symmetry of SU(2) Yang-Mills theory in Cho--Faddeev--Niemi decomposition

We determine the nilpotent BRST and anti-BRST transformations for the Cho--Faddeev-Niemi variables for the SU(2) Yang-Mills theory based on the new interpretation given in the previous paper of the Cho--Faddeev-Niemi decomposition. This gives a firm ground for performing the BRST quantization of the Yang--Mills theory written in terms of the Cho--Faddeev-Niemi variables. We propose also a modified version of the new Maximal Abelian gauge which could play an important role in the reduction to the original Yang-Mills theory.Comment: 11 pages, no figure; Introduction improved, 3 references adde

Yang-Mills theory constructed from Cho--Faddeev--Niemi decomposition

We give a new way of looking at the Cho--Faddeev--Niemi (CFN) decomposition of the Yang-Mills theory to answer how the enlarged local gauge symmetry respected by the CFN variables is restricted to obtain another Yang-Mills theory with the same local and global gauge symmetries as the original Yang-Mills theory. This may shed new light on the fundamental issue of the discrepancy between two theories for independent degrees of freedom and the role of the Maximal Abelian gauge in Yang-Mills theory. As a byproduct, this consideration gives new insight into the meaning of the gauge invariance and the observables, e.g., a gauge-invariant mass term and vacuum condensates of mass dimension two. We point out the implications for the Skyrme--Faddeev model.Comment: 17pages, 1 figure; English improved; a version appeared in Prog. Theor. Phy

Computer-aided growth medium design for optimal growth of Chinese hamster ovary cells

Systems biology and metabolic engineering tools hold a tremendous promise in improving biomanufacturing attributes since they represent one of the auspicious modern biomanufacturing optimization approaches. The emergence of omics tools and bioinformatics enables the development of new strategies to optimize expression platforms in general and Chinese hamster ovary (CHO) cell lines in particular, which are the most commonly used cell lines for the production of recombinant proteins. Computational modelling combined with CHO cell omics data can help optimizing growth parameters, as well as improving the final product yield. Here we use a genome-scale metabolic model (GSMM) of CHO to study the growth and metabolic behavior of CHO cells in response to environmental stimuli, such as changing amino acids levels. To study this influence, GSMM combined with an in-house developed algorithm was employed to determine the minimal medium formulation to sustain optimal growth for non-recombinant as well as for recombinant CHO cells lines. Optflux tool was used to predict metabolic behavior of the cells in response to the environmental constraints tested. Based on in silico predictions, growth yield value was improved for non-recombinant and recombinant CHO cells lines comparing to previously reported data. Furthermore, toxic by-products such as ammonium were decreased to their lowest levels. In silico-based approaches for medium optimization are powerful tools for predicting the metabolic interconnexion in the cell and for selecting potential experimental conditions for further validation in bioreactor systems.info:eu-repo/semantics/publishedVersio

Comparison of structural makeup of four hulless barley varieties using diffuse reflectance infrared fourier transform (DRIFT) spectroscopy

Non-Peer ReviewedThe objective of this study was to determine molecular structural makeup features of 3 newer hulless barley varieties (CDC Fibar, CDC Rattan, and HB08302) in comparison to the conventional feed-type barley variety in Canada (CDC McGwire) using diffuse reflectance infrared fourier transform (DRIFT) spectroscopy. The items included IR absorbed intensity (IR intensity unit, KM) peak area attributed to protein amide I (ca. 1715-1575 cm-1), amide II (ca. 1575-1490 cm-1), total carbohydrate (CHO; ca. 1188-820 cm-1), and structural carbohydrate (StCHO; ca. 1277-1190 cm-1); and ratio of amide I to II, amide I to CHO, and CHO to StCHO. There were no differences among barley varieties in CHO. While, CDC Fibar was greatest in protein amide I and II peak areas, as well as the ratio of protein amide I to CHO among barley varieties. Newer barley varieties were similar to each other, but were different from CDC McGwire in protein amide I to II ratios. In summary, DRIFT spectroscopy associated with both univariate and multivariate techniques can be used as tool to discriminate and classify the inherent molecular structural features among the different barley varieties

Composers' Forum: Student Works, April 10, 1990

This is the concert program of the Composers' Forum: Student Works performance on Tuesday, April 10, 1990 at 12:30 p.m., at the Boston University Concert Hall, 855 Commonwealth Avenue, Boston, Massachusetts. Works performed were ME-A-RI by Nami Cho, Music Box by Juley B. Kurs, Control by Juley B. Kurs, Three Sketches for two pianos by Nami Cho, Preludes for piano by Juley B. Kurs, and Up and Down: Inner Rounds by John Saylor. Digitization for Boston University Concert Programs was supported by the Boston University Humanities Library Endowed Fund

Molecular and functional characteristics of seven-transmembrane-domain receptor APJ

APJ is a member of seven-transmembrane-domain receptors, but its ligand had not been identified for a long time. I prepared CHO cells expressing APJ (CHO-A10 cells), and searched for the endogenous ligand for APJ by monitoring specific signal transduction in CHO-A10 cells. ...Thesis (Ph. D. in Science)--University of Tsukuba, (B), no. 1690, 2001.1.31Includes bibliographical referencesTitlepage,Tble of Contents -- Summary,Abbreviations -- Introduction -- Materials and Methods -- Results -- Discussion -- Ackknowledgements,References -- Table,Figures and Figure Legend

Gegenwartsbewältigung [Overcoming the Present]

I’m used to being solicited as a Jewish author. Or as I prefer to call it: a Jew-author. And now I’m already in the thick of things. Because in this text, I’ll be investigating how normalized understandings of belonging and the return of rightwing thought are intertwined. I contend that these understandings are manifest in the demand for integration whose all-but-universal presence is the reason I describe this as an integration paradigm. And I’d like to explain why I believe that Gegenwartsbewältigung [overcoming the present][1] is an appropriate counterstrategy. This text, then, is a kind of assembly kit for the construction of an alternative to the integration paradigm. But it’s up to you, dear reader, to make something out of it.[1] A play on the much-lauded German (World War 2-related) memory culture of “overcoming / coming to terms with the past” [Vergangenheitsbewältigung]

Eun Kyeong Cho Assistant Professor of Education, COLA, travels to South Korea

Professor Cho traveled to South Korea in summer 2011 to make a presentation at an international seminar and to meet colleagues to continue an on going collaboration with South Korean researchers at the Korea Institute of Child Care and Education (KICCE)