A comprehensive tribal-level classification for the world's subfamilies of Hesperiidae, the skipper butterflies, is proposed for the first time. Phylogenetic relationships between tribes and subfamilies are inferred using DNA sequence data from three gene regions: 943 bp of cytochrome oxidase subunit I (COI) (in the mitochondrial genome), 739 bp of...
E. coli thioredoxin (TRX) was modified by the episulfonium ion derived from S-(2-chloroethyl)glutathione (CEG) or S-(2-chloroethyl)cysteine (CEC). The alkylation site was located at Cys-32, which was confirmed by tandem mass spectrometry. Two forms of native TRX, Oxi- and Red-TRX, and two modified TRXs, GS- and Cys-TRX, were examined by hydrogen/deuterium...
Recombinant human macrophage colony stimulating factor beta (rhm-CSFβ) is a glycoprotein that stimulates the proliferation, differentiation and survival of cells belonging to the monocyte-macrophage lineage. It contains nine inter-subunit and intra-subunit disulfide bonds and represents an excellent model system for studying disulfide bond formation during protein folding because the assembly...
Water availability is a critical limiting element in semi-arid ecosystem productivity and presents particular challenges in Sahelian countries such as Senegal. The landscapes are characterized by the presence of two common semi-arid shrubs (Piliostigma reticulatum and Guiera senegalensis), both of which may be important hydraulic regulators in these water-limited ecosystems....
The purpose of this study was to investigate the knowledge base and instructional
practices of two highly qualified experienced secondary mathematics teachers within
the context of their classrooms during a unit in a geometry class. Data collected from
interviews, classroom observations, pre and post-observation questionnaires, and
detailed analyses of several...
The purpose of this study was to develop a profile
of Christian College physical education faculty members
regarding their academic preparation, professional
experience, and selected duties, as well as to identify
important components of graduate preparation at the
doctoral level for future faculty at these
institutions.
A survey instrument was...
Pyrenophora tritici-repentis, causal agent of tan spot of wheat, produces multiple
host-selective toxins (HSTs), including Ptr ToxA, encoded for by ToxA, Ptr ToxB,
encoded for by ToxB, and Ptr ToxC. Variable distribution of these three HSTs among
different isolates of P. tritici-repentis, both singularly and in all possible combinations,
defines...
The era of "customer satisfaction" brings students to colleges who are increasingly identifying themselves as customers. Competition among a growing number of institutions and learning organizations is sharpening the desire of institutions to deliver high quality service in order to attract and retain students. Some examples of interactions where service...
The purpose of this study was to describe and record the experiences of people of color in a community leadership development program. Selected people of color were asked to describe their experiences as participants in the American Leadership program in Tacoma-Pierce County in the State of Washington. The American Leadership...
This study co-investigated with students with hidden disabilities the phenomenon of disability identity. This qualitative study utilized phenomenology and strategies proposed by Paulo Freire in an effort to understand identity development specific to individuals with hidden disabilities. There were seven students from a medium-sized, public university who participated in the...