This study is mainly concentrated on examining the positive cloud-to-ground lightning activity associated with Mesoscale Convective Systems. Six MCS events which occurred during the O.K. PRE-STORM program in 1985 are studied. Data indicating the location and polarity of the cloud-to-ground lightning flashes from a lightning location network are analyzed in...
Described herein is the synthesis of an uncharged stereoregular oligonucleotide
analog consisting of cytosine bases linked at specific intervals to a polyamide backbone
derived from (L)-glutamic acid. Preparation of this analog entailed borane reduction of
(L)- pyroglutamic acid to give optically pure lactam alcohol 9. Tosylation and alkylation
with cytosine...
This investigation was designed to measure certain visually
perceived nonverbal behaviors of teachers in an effort to learn the
relationships between these behaviors and the affective responses of
students to the teachers, To this end, teachers were videotaped, and
the tapes were shown to students for their affective responses.
Thirty...
An automated multielement flame atomic fluorescence (AF) spectrometer based on microcomputer control was constructed to determine four elements simultaneously. The instrument employs a multiple exit slit monochromator where the light from various exit slits is directed to a single detector with a mirrored funnel. Each element is excited to fluoresce...
This study assessed the influence of three history of science (HOS) courses on college students and preservice science teachers' conceptions of the nature of science (NOS), and examined whether participants who entered the investigated HOS courses with a conceptual framework consistent with current NOS views achieved more elaborate NOS understandings....
This research was conducted to compare the performance of
community college students to four -year institutional students both
of which were enrolled in one of three different programs of general
college chemistry for nonscience majors during the 1967 -68 academic
year. The three programs were defined as follows:
Program A...