Search Results - "Day, Roberta"

Multimedia Tutors for Science and Engineering.

Authors: Woolf, Beverly Park Poli, Corrado Grosse, Ian et al.

Peer Reviewed: N

Page Count: 8

Descriptors: Cognitive Processes, Design, Engineering Education, Foreign Countries, Higher Education, Manufacturing, Science Education, Three Dimensional Aids, Tutors

Geographic Terms: United Kingdom (England)

Effects on Student Achievement in General Chemistry following Participation in an Online Preparatory Course: ChemPrep, a Voluntary, Self-Paced, Online Introduction to Chemistry

Authors: Botch, Beatrice Day, Roberta Vining, William et al.

Source: Journal of Chemical Education. Mar 2007 84(3):547-553.

Peer Reviewed: Y

Page Count: 7

Descriptors: Science Achievement, Chemistry, Science Instruction, Online Courses, Student Participation, Individualized Instruction, Pacing, College Science, Electronic Learning, Outcomes of Education, Undergraduate Students, Effect Size, Gender Differences, Introductory Courses

Geographic Terms: Massachusetts

Access URL: https://www.jce.divched.org/Journal/Issues/2007/Mar/abs547.html

Discrimination and Generalization on a Dimension of Stimulus Difference.

Authors: HONIG, WERNER K. DAY, ROBERTA W.

Source: Science (pre-March 2025). 10/5/1962, Vol. 138 Issue 3536, p29-31. 3p.

Conversion of Tricoordinate to Hexacoordinate Phosphorus. Formation of a Phosphorane-Phosphatrane System.

Authors: Timosheva, Natalya V. Chandrasekaran, A. Day, Roberta O.

Source: Journal of the American Chemical Society; June 19 2002, Vol. 124 Issue 24, p7035-7040, 6p

A new class of silatranes: structure and dynamic NMR behavior.

Authors: Chandrasekaran, A. Day, Roberta O. Holmes, Robert R.

Source: Journal of the American Chemical Society; February 16 2000, Vol. 122 Issue 6, p1066-1072, 7p

Hexacoordination via sulfur donor action in nitrogen and chlorine bonded bicyclic tetraoxyphosphoranes.

Authors: Sherlock, David J. Chandrasekaran, A. Day, Roberta O.

Source: Journal of the American Chemical Society; February 12 1997, Vol. 119, p1317-1322, 6p

New class of bicyclic oxyphosphoranes with an oxaphosphorinane ring: molecular structures and activation energies for ligand exchange.

Authors: Prakasha, T. K. Day, Roberta O. Holmes, Robert R.

Source: Journal of the American Chemical Society; September 7 1994, Vol. 116, p8095-8104, 10p

Influence of phosphorus-sulfur bonding in the formation of octahedrally coordinated cyclic pentaoxyphosphoranes.

Authors: Prakasha, T. K. Day, Roberta O. Holmes, Robert R.

Source: Journal of the American Chemical Society; April 7 1993, Vol. 115, p2690-2695, 6p

Hydrogen-bonded phosphate esters. Synthesis and structure of imidazole-containing salts of diphenyl phosphate and (trichloromethyl)phosphonic acid.

Authors: Holmes, Robert R. Day, Roberta O. Yoshida, Yuji

Source: Journal of the American Chemical Society; February 26 1992, Vol. 114, p1771-1778, 8p

Influence of hydrogen bonding on the formation of boat and chair conformations of six-membered rings in spirocyclic tetraoxyphosphoranes.

Authors: Day, Roberta O. Kumara Swamy, K. C. Fairchild, Lisa

Source: Journal of the American Chemical Society; February 27 1991, Vol. 113, p1627-1635, 9p

Conformational preferences of spirocyclic pentaoxyphosphoranes varying in ring size.

Authors: Kumara Swamy, K. C. Day, Roberta O. Holmes, Joan M.

Source: Journal of the American Chemical Society; August 1 1990, Vol. 112, p6095-6103, 9p

Tetranuclear organooxotin cage compounds formed with phosphate and phosphonate ligands. A new class of organotin clusters.

Authors: Kumara Swamy, K. C. Schmid, Charles G. Day, Roberta O.

Source: Journal of the American Chemical Society; January 3 1990, Vol. 112, p223-228, 6p

Novel hydrolysis pathways of dimesityldifluorosilane via an anionic five-coordinated silicate and a hydrogen-bonded bisilonate. Model intermediates in the sol-gel process.

Authors: Johnson, Stephen E. Deiters, Joan A. Day, Roberta O.

Source: Journal of the American Chemical Society; April 26 1989, Vol. 111, p3250-3258, 9p

Crown and extended organooxotin compounds formed with phosphinate ligands. A new class of tetranuclear tin clusters.

Authors: Kumara Swamy, K. C. Schmid, Charles G. Day, Roberta O.

Source: Journal of the American Chemical Society; October 12 1988, Vol. 110, p7067-7076, 10p

Distortion coordinate for five-coordinated tin. A model for nucleophilic substitution. Synthesis and structure of hypervalent anionic (cyanoethylenedithiolato)stannates.

Authors: Day, Roberta O. Holmes, Joan M. Shafieezad, Sohelia

Source: Journal of the American Chemical Society; August 3 1988, Vol. 110, p5377-5383, 7p

Isomeric intraconversion among penta- and hexacoordinate cyclic oxyphosphoranes via oxygen atom coordination.

Authors: Chandrasekaran, A. Day, Roberta O. Holmes, Robert R.

Source: Journal of the American Chemical Society; November 26 1997, Vol. 119, p11434-11441, 8p

Hydrogen bonded phosphate esters. Synthesis and structure of catechol-containing salts of 2-hydroxyphenyl phenylphosphonate.

Authors: Poutasse, Charles A. Day, Roberta O. Holmes, Robert R.

Source: Journal of the American Chemical Society; June 27 1984, Vol. 106, p3814-3820, 7p

Conformations of saturated six-membered ring phosphorus heterocycles. Axial, nonplanar dimethylamino group of 5,5-dimethyl-2-(dimethylamino)-2-oxo-1,3,2-oxazaphosphorinane as determined by x-ray crystallography. 1H NMR and IR spectroscopic analysis of con

Authors: Holmes, Robert R. Day, Roberta O. Setzer, William N.

Source: Journal of the American Chemical Society; April 18 1984, Vol. 106, p2353-2358, 6p

Conformations of saturated six-membered ring phosphorus heterocycles. X-ray crystallographic and 1H NMR study of cis-2-oxo-2-(dimethylamino)-3,5-diphenyl-1,3,2-oxazaphosphorinane, a cyclophosphamide-like molecule in a twist conformation.

Authors: Bentrude, Wesley G. Day, Roberta O. Holmes, Joan M.

Source: Journal of the American Chemical Society; January 11 1984, Vol. 106, p106-111, 6p

The first monocyclic 1,3,2-dioxaphosphorinane in a boat form. Synthesis, structure, and stability.

Authors: Day, Roberta O. Bentrude, Wesley G. Yee, K. C.

Source: Journal of the American Chemical Society; January 11 1984, Vol. 106, p103-106, 4p