By Daniel T. Gillespie. Annual Review of Physical Chemistry 58, 35–55.

Author text: www.dna.caltech.edu/courses/cs191/paperscs191/gillespie1.pdf

Cited passage: Section 4, printed pp. 44–46, equations (18)–(20), derives the Gaussian approximation to Poisson reaction counts, the chemical Langevin equation and its conditions; printed p. 46 explains the system-size scaling of noise. Byline and journal metadata verified on PDF page 1.

Journal of Chemical Physics 115, 1716–1733. By Daniel T. Gillespie.

Primary text indexed at Author paper, section II, equations (5)–(9): joint next-reaction density, total propensity, factorization and the direct method. The indexed passage was inspected; the direct PDF URL returned 404 on 2026-11-02. Title, byline and DOI were independently checked against the indexed publisher PDF at moodle2.units.it/pluginfile.php/293921/mod_resource/content/1/Gillespie_2001_Approximate_accelerated_stochastic_simulation_of_chemically_reacting_systems.pdf . The exact algorithm review in section II is cited, rather than the later approximate tau-leaping construction.

Journal of Physical Chemistry 77, 268–277. DOI: 10.1021/j100621a026. The archived May 1972 submitted preprint develops ionic-strength-dependent short-range binary-interaction terms and concentrated-electrolyte equations.

Primary author-report record: escholarship.org/uc/item/15n9h7zx

Full text: escholarship.org/content/qt15n9h7zx/qt15n9h7zx.pdf

Experimental molecular quadrupole table: cccbdb.nist.gov/quadlistx.asp

Institutional CCCBDB tutorial, especially the Primitive? Traceless? convention discussion, and experimental benzene entry. No publication date asserted. Its quadrupole convention differs by a factor of two from the Q tensor used in this wiki; no numerical value is transferred between those conventions.

Original article in The Journal of Physical Chemistry A 115, 8073–8085. The author preprint credits Raphaël Plasson and collaborators.

Inspected author preprint dated 22 October 2010, section 2.1–2.2 and section 3.1, printed p. 2: kinetic definition, competing uncatalyzed pathway and the bimolecular autocatalytic model. The publication year is distinct from the preprint date.

Annalen der Chemie und Pharmacie72,106–113. Primary copper-based sugar-determination method.

Journal of Chemical Education76(9),1224. Authored by Anne E.Moody and R.Griffith Freeman; abstract describes chemical-safety and scientific-ethics case studies.

By Robert Sidney Cahn, Christopher Kelk Ingold and Vladimir Prelog. Primary formulation of stereochemical specification and priority conventions.

Berichte der deutschen chemischen Gesellschaft45,3157–3166. Primary report of phenol allyl ether rearrangement.

Journal of the Chemical Society, Transactions111,762–768. The synthetic result is distinguished from subsequent proposed biosynthetic interpretations.

Authored Nobel lecture, 12December1950. Diene synthesis, stereochemical relationships and related reactions.

Journal of the American Chemical Society. Primary preparation through skeletal rearrangement.

Bretislav Friedrich investigated orientation of cooled molecules in strong electric fields with Dudley Herschbach. Restriction of angular motion produces pendulum-like rotational states, connecting low temperature with control of a molecule’s spatial orientation.^[ref]

R. Griffith Freeman developed chemical education that treats the conduct of science as part of learning chemistry. With Anne Erwin Moody, he described a sophomore seminar combining chemical-safety readings, contemporary safety reports and case discussions of scientific honesty.^[ref]

The approach makes students reason about decisions and evidence, rather than memorize only a list of prohibited actions. This entry concerns the author identified in that primary paper's Truman State University byline; the source does not establish additional personal metadata.

L. S. Dent Glasser, published in research papers as Lesley S. Dent Glasser, worked on crystallography, chemical transformations and science education. A 1968 paper with Ian B. Smith lists the Department of Chemistry at the University of Aberdeen and examines oriented transformations among manganese-containing solids.^[ref]

Their observations connect chemistry with geometry: a reaction can preserve a relationship between the orientation of the starting crystal and that of the product, even while its composition changes. Where their results permitted an interpretation, the authors related the orientations to the oxygen framework and substantial movement of manganese. They also explicitly reported symmetry changes they could not explain. This makes the paper an example of using crystal structure to constrain a reaction mechanism without treating every structural observation as a completed explanation.^[ref]

Her IUCr teaching pamphlet Symmetry by L. S. Dent Glasser develops the relation between finite-object symmetry, periodic arrays and space groups. Its examples show how repeating a motif introduces translations and combined operations beyond the symmetry of an isolated object.^[ref]

Ian B. Smith studied oriented chemical transformations in manganese-containing solids with L. S. Dent Glasser. Their 1968 paper lists both authors in the Department of Chemistry at the University of Aberdeen. Its subject connects chemical reactions with crystal orientation: the arrangement of a product can retain a reproducible relationship to the starting material even when the material's composition changes.^[ref]

The distinction is useful experimentally. Identifying which substance formed answers a different question from identifying how its crystal lattice is oriented relative to the original crystal. An orientation relationship can constrain a proposed reaction mechanism beyond what chemical composition alone establishes.

Where their observations could be interpreted, Smith and Dent Glasser related the orientations to the oxygen framework and substantial migration of manganese. They also reported unexplained changes in crystallographic symmetry. Their work thus illustrates how structural observations can support a mechanism while leaving particular transformations unresolved.^[ref]

Gilson is a laboratory-instrument manufacturer and the corporate author of Gilson Guide to Pipetting. In this bibliography, the name identifies the company, rather than an individual researcher. The guide documents small-volume liquid handling, especially the relation between a pipette setting, the liquid actually delivered, and experimental reproducibility.^[ref]

In an air-displacement pipette, a piston changes the volume of an air cushion between the piston and the liquid. In a positive-displacement pipette, the piston acts directly on the liquid in the disposable assembly. The distinction helps explain why liquid properties and operating technique can affect delivery: the dial setting alone does not establish the delivered volume.^[ref]

For example, repeated nominal $20\mu \mathrm{L}$ water deliveries can be weighed and converted to volume using density and the calibration corrections. Their mean offset from $20\mu \mathrm{L}$ measures a systematic error; variation between deliveries measures repeatability. The two answer different experimental questions: a tightly clustered set of deliveries can still have a biased mean.^[ref]

G. N. Bowers Jr is an author of research on spectrophotometry and reference materials used for measurement calibration in biochemical analysis. In a 1980 study, Bowers and colleagues specified high-purity 4-Nitrophenol for standardizing measurements of alkaline phosphatase activity. Some commercial samples met their specifications; others required recrystallization or sublimation. This makes purity a practical part of the measurement, rather than an assumption about a reagent label.^[ref]

The same study reported a molar absorption coefficient of $(18380\pm 90)\mathrm{L}\mathrm{mo}{\mathrm{l}}^{-1}\mathrm{c}{\mathrm{m}}^{-1}$ at a wavelength of $401\mathrm{nm}$ and a temperature of $25{}^{\circ }\mathrm{C}$, for $35\mu \mathrm{mol}{\mathrm{L}}^{-1}$ 4-Nitrophenol in $10\mathrm{mmol}{\mathrm{L}}^{-1}$ sodium hydroxide. The stated solution conditions belong with the coefficient: it is not automatically the value for a different wavelength or reaction mixture.^[ref]

For an illustrative Beer-Lambert law calculation using the central reported coefficient, an absorbance $A=0.3676$ through a path length $\ell =1\mathrm{cm}$ gives a molar concentrationThis chosen example shows how characterizing a reference material connects an optical reading to an amount of substance in solution.

R. M. Caprioli is a publication byline used by Richard M. Caprioli, a researcher in mass spectrometry imaging. Vanderbilt University's profile supplies the fuller name, describes his molecular-imaging research and lists publications under the Caprioli RM byline.^[ref]

A 1997 paper with collaborators demonstrated spatially ordered MALDI measurements of biological samples. A tissue slice or its imprint was coated with an energy-absorbing matrix; spectra were collected at defined sample coordinates. Selecting a mass-to-charge ratio then produced a spatial map of the corresponding signal. Mapping insulin in a rat-pancreas section was one demonstrated application.^[ref]

An original three-position example makes the added information clear. Suppose the signal for one selected ion is $(100,20,0)$ at three recorded positions, while another ion gives $(0,30,120)$. Summing each vector gives120 and150, but discards where the signals arose. The coordinate-tagged mass spectra instead preserve their different spatial patterns. These invented intensities illustrate the data structure and do not reproduce an experimental image.

A spatially localized mass signal is not automatically a unique chemical structure or a calibrated concentration. Sample preparation and the interpretation of the selected signal remain part of the measurement. The useful step in this work is the connection between molecularly informative spectra and the original tissue coordinates. A primary university profile and portrait page documents the researcher.