UNT College of Arts and Sciences - 826 Matching Results
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- Rediscovery of the Elements: The Grand Tour
- Article advertising the release of "Rediscovery of the Elements" on DVD with additional information.
- Rediscovery of the Elements: The Harz Mountains and Göttingen
- Article describing the importance of the Harz Mountains and the University of Göttingen in the discovery of cadmium and thallium. Tourist information regarding the area is included.
- Rediscovery of the Elements: The Noble Gases--Rayleigh and Ramsay
- Article describing the discovery of argon, helium, and other inert gases by Lord Rayleigh, Sir William Ramsay, and other collaborators. Ramsay also characterized the noble gases and classified them within the structure of the Periodic Table of Elements.
- Rediscovery of the Elements: The Periodic Table
- Article recounting the history of the development of the Periodic Table. Sites pertinent to this development were visited by the authors, who provide related tourist information.
- Rediscovery of the Elements: The Platinum Metals
- Article describing the history of the platinum metals, from its discovery in the New World and subsequent experiments in Europe. Tourist information is provided regarding areas pertinent to the history of platinum.
- Rediscovery of the Elements: The Rare Earths - The Beginnings
- 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.
- Rediscovery of the Elements: The Rare Earths - The Confusing Years
- 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.
- Rediscovery of the Elements: The Road to Karlsruhe
- Article describing the history of atomic weight and the events leading up to the Karlsruhe Congress of chemists. The authors visited several sites pertinent to these events and offer tourist information.
- Rediscovery of the Elements: The Second Discovery of Vanadium
- Article describing how vanadium was "rediscovered" in Sweden and found to be identical to del Rio's sample. Includes tourist information regarding areas relevant to this portion of vanadium's history.
- Rediscovery of the Elements: The Undiscovery of Vanadium
- Article describing the how the original vanadium sample was misanalysed and identified as chromium. Includes tourist information regarding Paris, France.
- Rediscovery of the Elements: Thorium
- Article recounting the discovery of the element Thorium in Norway by Hans Morten Thrane Esmark. Maps and tourist information regarding the area are provided.
- Rediscovery of the Elements: Titanium, Manaccan, Cornwall, England
- Article wherein James and Virginia Marshall visit Manaccan, England, to explore the site where titanium was first discovered. The area is described, as well as the man who discovered titanium, Reverend William Gregor.
- Rediscovery of the Elements: Vanadium
- Article describing the discovery of Vanadium and tracing the footsteps of the discoverers.
- Rediscovery of the Elements: Yttrium and Johan Gadolin
- Article describing the life and career of Johan Gadolin. Tourist information regarding locations significant to his history is included.
- Ring of Fire
- Front cover of the fall 2012 issue of The Hexagon, which features an image of the "ring of fire" that occurred during the annular eclipse on May 20, 2012. The photograph was taken in Brownfield, Texas a few minutes before sunset. The inside cover contains a table of contents, a staff list, an editorial, and details about the cover photograph.
- Saguaro Cactus and Joshua Trees
- Front cover of the spring 2013 issue of The Hexagon, which features an image of a saguaro cactus and joshua trees at a location in northwest Arizona along highway US 93. The inside cover contains a table of contents, a staff list, an editorial, and details about the cover photograph.
- St. Anne's Church in Vilnius, Lithuania
- Front cover of the 2011 issue of The Hexagon, featuring St. Anne's church in Vilnius, Lithuania. The Gothic red brick building looms above a street bustling with activity. The inside cover contains a table of contents, staff credits, an editorial, and a description of the front cover.
- The Statue of Copernicus
- Front cover of the Summer 2009 issue of The Hexagon, featuring a statue of Copernicus sitting on a block, wearing a flowing robe, and holding a compass up to a heliocentric model. The next page contains a table of contents, a staff list, and an editorial regarding the twentieth anniversary of the events at Tiananmen Square.
- Statue of James Prescott Joule
- Front cover of the spring 2011 issue of the Hexagon, which features a statue James Joule wearing a coat and sitting in a chair. The inside cover includes a table of contents, a list of staff, an editorial, and a description of the cover.
- Statue of Leonardo da Vinci
- Front page of the Fall 2010 issue of The Hexagon, which features a stone statue of Leonardo da Vinci next to three photographs from articles. The inside cover has a table of contents, a list of staff, an editorial, and a description of the cover.
- The Story Behind the Cover
- Article explaining the front cover of issue 3 of volume 99 of The Hexagon, which features a painting of mice around a Bunsen burner. James Marshall discusses the picture and how it relates to the history of chemistry.
- Youth in Apuseni Mountains, Romania, Near the Discovery Site of Tellurium
- Front cover of the Spring 2010 issue of The Hexagon, featuring an adolescent boy wearing a sweater, corduroy pants, and boots while holding a lamb across his shoulders. He looks at the camera while standing in a bare patch of earth with grass and fallen branches behind him. To his left appear three round pictures relating to this issue's articles. The inside cover contains a table of contents, staff listings, and an editorial.
- Riddarhyttan City Motif
- First page of The Hexagon of Alpha Chi Sigma. The blue cover features a black and white drawing of a medieval knight wearing mail and a tunic with a cross motif. He is holding a shield that bears the image of a stone building with flames shooting out of the roof. The word "Riddarhyttan" appears on a banner above the knight's head. Two photographs are arranged to the left of the knight, with text and an image of a computer mouse to the right. The next page includes a table of contents, an editorial, and a list of contributors. Near the bottom of this second page is a piece labeled "On the Cover," which describes the previous page.
- An ab initio study of the ionization of sodium superoxide
- Article on an ab initio study of the ionization of sodium superoxide.
- Computational Studies of the Thermochemistry of the Atmospheric Iodine Reservoirs HOI and IONO₂
- Book chapter discussing computational studies of the thermochemistry of the atmospheric iodine reservoirs HOI and IONO₂.
- A Computational Study of Adducts Between Atomic Chlorine and Carbon Dioxide, Carbonyl Sulfide and Carbon Disulfide
- Article on a computational study of adducts between atomic chlorine and carbon dioxide, carbonyl sulfide and carbon disulfide.
- A Method for Analyzing Exponential Decays
- This article presents the non-linear least-squares routine KPS1 for the analysis of data from counting experiments which follow single exponential decays.
- Theoretical Studies of Reactions of Silanes
- Article on theoretical studies of reactions of silanes.
- A Theoretical Study of Nitrososilane and Six Isomers of SiH3NO
- Article on a theoretical study of nitrososilane and six isomers of SiH2NO.
- Thermochemistry of the Ethyl Radical and the C-H Bond Strength in Ethane
- Article on the thermochemistry of the ethyl radical and the C-H bond strength in ethane.
- A High-Temperature Photochemistry Study of the D + ND₃ Reaction
- Article on a high-temperature photochemistry study of the deuterium atom + ammonium-d3 reaction.
- HTP kinetics studies of the reactions of O(2(3)Pj) atoms with H2 and D2 over wide temperature ranges
- Article on HTP kinetics studies of the reaction of O(2(3)Pj) atoms with H2 and D2 over wide temperature ranges.
- An HTP kinetics study of the reaction between ground-state H atoms and NH₃ from 500 to 1140 K
- Article on an HTP kinetics study of the reaction between ground-state H atoms and NH₃ from 500 to 1140 K.
- Ab Initio and Kinetic Modeling Studies of Formic Acid Oxidation
- Article on ab initio and kinetic modeling studies of formic acid oxidation.
- Kinetic and Thermochemical Studies of the Recombination Reaction Na + O₂ + N₂ from 590 to 1515 K by a Modified High-Temperature Photochemistry Technique
- Article on kinetic and thermochemical studies of the recombination reaction sodium + oxygen + nitrogen from 590 to 1515 K by a modified high-temperature photochemistry technique.
- Computational Study of C-H Bond Strengths in Polyfluoroalkanes
- Article on a computational study of C-H bond strengths in polyfluoroalkanes.
- High-Temperature Photochemistry and BAC-MP4 Studies of the Reaction Between Ground-State H Atoms and N2O
- Article on high-temperature photochemistry and BAC-MP4 studies of the reaction between ground-state H atoms and N2O.
- Predicted thermochemistry and unimolecular kinetics of nitrous sulfide
- Article on predicted thermochemistry and unimolecular kinetics of nitrous sulfide.
- High-Temperature Photochemistry Kinetics Studies of the Reactions of H(1²S) and D(1²S) with N₂O
- Article on high-temperature photochemistry kinetics studies of the reactions of hydrogen atom(1²S) and deuterium atom (1²S) with nitrous oxide.
- Computational studies of the reactions of CH3I with H and OH
- Article on computational studies of the reactions of CH3I with H and OH.
- A computational study of the enthalpies of formation of halomethylidynes
- Article on a computational study of the enthalpies of formation of halomethylidynes.
- Elementary reactions and a mechanism for the suppression of hydrogen fires by CF₃I
- Paper for the 1997 Halon Options Technical Working Conference (HOTWC). This paper discusses elementary reactions and a mechanism for the suppression of hydrogen fires by CF₃I.
- Reactions of boron and aluminum atoms with small molecules
- Article on the reactions of boron and aluminum atoms with small molecules.
- A computational study of the thermochemistry of bromine- and iodine-containing methanes and methyl radicals
- Article on a computational study of the thermochemistry of bromine- and iodine-containing methanes and methyl radicals.
- Solubility of Anthracene in Binary Solvent Mixtures Containing Dibutyl Ether
- Article on the solubility of anthracene in binary solvent mixtures containing dibutyl ether.
- What Can We Learn about Dispersion from the Conformer Surface of n-Pentane?
- This article maps the torsional surface of n-pentane to 10-degree resolution at the CCSD(T)-F12 level near the basis set limit.
- What Can We Learn about Dispersion from the Conformer Surface of n-Pentane?
- Article describes study in which researchers mapped the torsional surface of n-pentane to 10-degree resolution at the CCSD(T)-F12 level near the basis set limit.
- Solubility of Anthracene in Ternary Cyclohexane + Propanol + 1-Pentanol and Cyclohexane + Butanol + 1-Pentanol Mixtures
- Article on the solubility of anthracene in ternary cyclohexane + propanol + 1-pentanol and cyclohexane + butanol + 1-pentanol mixtures.
- Pharmaceuticals Solubility is Still Nowadays Widely Studied Everywhere
- This editorial discusses the importance of equilibrium solubility in pharmaceutical areas.
- Some numerical analyses on the solubility of vanillin in Carbitol® + water solvent mixtures
- This article reports solubility values of vanillin (component 3) in 2-(2-ethoxyethoxy)ethanol (Carbitol®, component 1) + water (component 2) mixtures at five temperatures from 298.15 to 318.15 K correlated with the Jouyban-Acree model combined with van't Hoff or Apelblat equations, and obtains models in second degree regarding the mixtures compositions.