Boyd studies

It is well-known that it is difficult to determine phase boundaries from isotherm measurements. A striking example of this problem is the G-LE transition in pentadecanoic acid (PDA). Harkins and Boyd studied monolayers of PDA at a variety of temperatures and proposed that the G-LE two-phase region ended at a critical point at a temperature in excess of 35°C. The nature of this two-dimensional critical point was examined by Kim and Cannell, who made isotherm measurements at closely spaced temperatures between 14.8 and 34.7°C. (Earlier, Hawkins and Benedek carried out a similar investigation, but their failure to control the pH of the subphase left their results in doubt.)... 

The chemical behaviour of the mesoionic pyrazole (459) has been studied by Boyd et al (74JCS(P1)1028). Protonation and alkylation take place on the exocyclic nitrogen atom and a thermal rearrangement of a methyl group is observed when (459) is boiled in benzonitrile for several hours giving (460). 

Barchet, W. R., Dennis, R. L., and Seilkop, S. K., Evaluation of RADM using surface data from the Eulerian model evaluation field study. Paper 5.2, pp 63-66, in "Preprints, Seventh Joint Conference on Applications of Air Pollution Meteorology with AWMA," Jan. 14-18, 1991, New Orleans. American Meteorological Shdety, Boston, 1991. Nicholas, G., and Boyd, R. R., Dames and Moore Eng. Bull. 58, 4-12 (1981). 

Ref D. Venable and T.J. Boyd, Jr, PHERMEX Applications to Studies of Detonation Waves and Shock Waves , 4th ONRSympDeton (1965), 639-47 (29 refs are included)... 

Boyd, T. E. Kochen, R. L. Ferrite Treatment of Actinide Waste Solutions A Preliminary Study, U.S. DOE Rept. RFP-3299, Rockwell International, Golden, Colorado, July 30, 1982. 

Comar, C.L., Lotz, W.E. and Boyd, G.A. 1952 Autoradiographic studies of calcium, phosphorus, and strontium distribution in the bones of the growing pig. American Journal of Anatomy 90 113-125. 

The effects of protein deficiency on endosulfan toxicity were studied in Wistar rats (Boyd and Dobos 1969 Boyd et al. 1970). Rats fed a diet totally deficient in protein for 28 days prior to administration of a single oral dose of endosulfan had an LDjq of 5.1 mg/kg of endosulfan. Rats fed a low-protein diet (3.5% protein) for 28 days had an LDjq of 24 mg/kg of endosulfan. Rats fed standard laboratory chow (26% protein) had an LDjq of 102-121 mg/kg. The immediate cause of death in all animals was respiratory failure following tonic-clonic convulsions. This study demonstrated that, while a protein-deficient diet does not affect the nature of the toxic reaction, it may affect the sensitivity of rats to the lethal effects of endosulfan. 

The central nervous system is a major target of endosulfan-induced toxicity in both humans and animals (Blanco-Coronado et al. 1992 Boyd and Dobos 1969 Boyd et al. 1970 Garg et al. 1980 Kiran and Varma 1988 Terziev et al. 1974). Therefore, individuals with seizure disorders, such as epilepsy, may be particularly susceptible because exposure to endosulfan may reduce the threshold for tremors, seizures, and other forms of neurotoxicity, as demonstrated in studies in rats (Gilbert and Mack 1995 Gilbert 1992). 

Several studies conducted in experimental animals have demonstrated that diets deficient in protein exacerbate the oral toxicity of endosulfan (Boyd 1972 Boyd et al. 1970 Das and Garg 1981). These results suggest that people who consume low-protein diets, such as chronic alcoholics, dieters, food faddists, various cults, some ethnic groups, the elderly, and some people living in depressed areas or underdeveloped countries, may be more susceptible to the toxic effects of endosulfan. 

Boyd DB, Palkowitz AD, Thrasher KJ, Hanser KL, Whitesitt CA, Reel JK, Simon RL, Pfeifer W, Lifer SL, Takenchi K, Vasudevan V, Kossoy AD, Deeter JB, Steinberg MI, Zimmerman KM, Wiest SA, Marshall WS. Molecnlar modeling and qnantitative strnctnre-activity relationship studies in pnrsnit of highly... 

Dickinson J.R., Dawes I.W., Boyd A.S.F. Baxter R.L. (1983) C NMR studies of acetate metabolism during spomlation of Saccharomyces cerevisiae. Proc Nat Acad Sci USA, 80, 5847-5851. 

Olafsson M, Eggler DH (1983) Phase relations of amphibole, amphibole-carbonate, and phlogopite-carbonate peridohte petrologic constraints on the asthenosphere. Earth Planet Sci Lett 64 305-315 Olson P, Schubert G, Anderson C, Goldman P (1988) Plume formahon and lithosphere erosion a comparison of laboratory and numerical experiments. J Geophys Res 93 15065-15084 Pearson DG, Shirey SB, Carlson RW, Boyd FR, Nixon PH (1995) Stabilisahon of Archean lithospheric manhe A Re-Os isotope isotope study of peridohte xenoliths. Earth Planet Sci Lett 134 341-357... 

Winokur A., Sateia M. J., Boyd Hayes J. el al. (2000). Acute effects of mirtazapine on sleep continuity and sleep architecture in depressed patients a pilot study. Biol. Psychiatry 48, 75-7. 

Ramani, R., and R. J. Boyd. 1981. Ab-initio Molecular Orbital Study of the cis/trans Conformations of the Peptide Bond. Int. J. Quantum Chem. Quantum Biol. Symp. 8, 117-127. 

Jaynes WF, Vance GF (1999) Sorption of benzene, toluene, ethylbenzene and xylene (BTEX) compounds by hectorite clays exchanged with aromatic organic cations. Clays Clay Miner 47 358-365 Johnston CT, De Oliveira MF, Teppen BJ, Sheng G, Boyd SA (2001) Spectroscopic study of nitroaromatic-smectite sorption mechanisms. Environ Sci Technol 35 4767-4772... 

Numerous studies demonstrated that lipid peroxidation significantly decreased in cancer cells and tissues (Ref. [176] and references therein). It has been proposed that this can be a consequence of a decrease in the content of highly unsaturated fatty acids, the concentration of cytochrome p-450, and the contents of NADPH, SOD, and catalase in tumors. Cheeseman et al. [176] suggested that the reduction of lipid peroxidation in tumors may depend on both the expression of malignant transformation and cell division. It should be mentioned that Boyd and McGuire [177] demonstrated that there is a correlation between lipid peroxidation and breast cancer risk in premenopausal women. 

S. L. Boyd and R. J. Boyd, A density functional study of methanol clusters. J. Chem. Theory Comput. 3, 54 61 (2007). 

Ingold s colleagues and proteges frequently have noted that his later penchant for combining physical methods with chemical techniques was presaged in a youthful precocity in physics. He began serious scientific studies at Hartley University, Southampton, as an external student of the University of London. He was "better at physics than chemistry," he later recalled, but his enthusiasm for chemistry was fired by a gifted teacher, D. R. Boyd.5... 

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