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Further Numerical Analyses on the Solubility of Sulfapyridine in Ethanol + Water Mixtures

Description: This article aims to correlate the solubility of sulfapyridine and sulfadiazine in ethanol + water mixtures by means of the Jouyban-Acree model, and to evaluate the preferential solvation of sulfapyridine in these mixtures by using the inverse Kirkwood-Buff integrals.
Date: September 30, 2016
Creator: Delgado, Daniel R.; Peña, María Á.; Martínez, Fleming; Jouyban, Abolghasem & Acree, William E. (William Eugene)
Item Type: Article

Using Paired Depth Interviews to Collect Qualitative Data

Description: This article defines and describes paired depth interviews, discusses conceptualizations of paired depth interviews using Roulston's framework, delineates the strengths and limitations of paired depth interviews, and provides examples of paired depth interviews utilized in helping professions.
Date: September 5, 2016
Creator: Wilson, Angela K.; Onwuegbuzie, Anthony J. & Manning, LaShondra P.
Item Type: Article

Negative ion photoelectron spectroscopy of P₂N₃⁻: electron affinity and electronic structures of P₂N₃˙

Description: This article reports a negative ion photoelectron spectroscopy (NIPES) and ab initio study of the recently synthesized planar aromatic inorganic ion P₂N₃⁻, to investigate the electronic structures of P₂N₃⁻ and its neutral P₂N₃˙ radical.
Date: April 5, 2016
Creator: Hou, Gao-Lei; Chen, Bo; Transue, Wesley J.; Hrovat, David A.; Cummins, Christopher C.; Borden, Weston T. et al.
Item Type: Article

Bad Pyrmont Spa

Description: Photo depicts the Bad Pyrmont Spa in western Germany which is known for its therapeutic baths and vapor cave. The paragraph on the bottom of page 70 gives details about the photo and the spa.
Date: Winter 2015
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
Item Type: Article

Rediscovery of the Elements: The Rare Earths - The Confusing Years

Description: This article gives a timeline of research conducted on the rare earths, 17 elements found in the f-block and Group III chemical family of the Periodic Table. It covers discoveries made after the success of Swedish chemist, Carl Gustaf Mosander. The article describes the categorization of the rare earths that took place after Mosander's time, as well as separation techniques that developed.
Date: Winter 2015
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
Item Type: Article

Crystal structure of (3E,5E)-3,5-bis[4-(diethylazaniumyl)benzylidene]-1-methyl-4-oxopiperidin-1-ium trichloride dihydrate: a potential biophotonic material

Description: This article describes the crystal structure of the title compound, and examines application as an agent for locating cancer cells with two-photon excited fluorescence as as a potential agent for a photodynamic treatment of cancer. This article includes supporting information with computing details of the study.
Date: November 4, 2015
Creator: Nesterov, Volodymyr V.; Zakharov, Lev N.; Nesterov, Vladimir N. & Shulaev, Vladimir
Item Type: Article

Multireference Character for 4d Transition Metal-Containing Molecules

Description: This article proposes new criteria, namely T₁ ≥ 0.045, D₁ ≥ 0.120, and %TAE ≥ 10%, as a gauge for 4d transition metal-containing molecules to predic the possible need to employ multireference (MR) wave function-based methods to describe energetic and spectroscopic properties.
Date: October 14, 2015
Creator: Wang, Jiaqi; Manivasagam, Sivabalan & Wilson, Angela K.
Item Type: Article

Rediscovery of the Elements: The Rare Earths - The Beginnings

Description: This article explores the rare earths, the chemically similar elements that occupy the f-block of the Periodic Table and the Group III chemical family. The articles shows the locations that certain rare earths were originally found. It also gives details on where the elements can be found currently, as well as major production areas. The cover of the Fall 2015 Hexagon journal (Vol. 106, Issue 3) features the Mountain Pass rare earth ore body in Southern California, which is mentioned in the article on pages 40-45 of the journal. A description of the photo on the cover of the journal can be found on page 38.
Date: Autumn 2015
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
Item Type: Article

Effect of halogen substitution on the enthalpies of solvation and hydrogen bonding of organic solutes in chlorobenzene and 1,2-dichlorobenzene derived using multi-parameter correlations

Description: Article on the effect of halogen substitution on the enthalpies of solvation and hydrogen bonding of organic solutes in chlorobenzene and 1,2-dichlorobenzene derived using multi-parameter correlations.
Date: August 12, 2015
Creator: Varfolomeev, Mikhail A.; Rakipov, Ilnaz T.; Khachatrian, Artashes A.; Acree, William E. (William Eugene); Brumfield, Michela & Abraham, M. H. (Michael H.)
Item Type: Article

20 Mule Team

Description: This photograph from the front cover of an issue of the Hexagon Journal displays the mock 20 mule team that stands outside of the Rio Tinto Borax Museum in Boron, California. The mule team depicts the original mode used to transport the chemical compound, borax, out of Death Valley between 1883 and 1888. A description of the photograph is shown on page 23 of the journal.
Date: Summer 2015
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
Item Type: Clipping

Rediscovery of the Elements: Sir Humphry Davy and the Alkalis

Description: Article provides information on the history of alkalis, particularly discoveries associated with potassium and sodium. The article also gives information on Humphry Davy, the first person to prepare alkalis in elemental form.
Date: Summer 2015
Creator: Marshall, James L., 1940- & Marshall, Virginia R.
Item Type: Article

Determination of Abraham model solute descriptors for the monomeric and dimeric forms of trans-cinnamic acid using measured solubilities from the Open Notebook Science Challenge

Description: Article on the determination of Abraham model solute descriptors for the monomeric and dimeric forms of trans-cinnamic acid using measured solubilities from the Open Notebook Science Challenge.
Date: September 25, 2014
Creator: Bradley, Jean-Claude; Abraham, M. H. (Michael H.); Acree, William E. (William Eugene); Lang, Andrew S. I. D.; Beck, Samantha N.; Bulger, David A. et al.
Item Type: Article