Jenkins studies

Jenkins, S., Forbes, S., Durrani, T. S. and Banerjee, S. K. 1997b Managing the Product Development Process - Part II case studies. International Journal of Technology Management, 13(4), 379-394. 

In addition, Bamford, Jenkins and coworkers (19) previously reported on the behavior of occluded radicals in the heterogeneous polymerizations of acrylonitrile, methyl acrylate, methyl methacrylate and vinylidene chloride. From their electron spin resonance studies, they concluded that the degree of occlusion was ... 

As shown in Fig. 10-13, there is also a flux of O2 produced during net photosynthesis from the ocean to the atmosphere and an export flux of particulate and dissolved organic matter out of the euphotic zone. For a steady-state system, new production should equal the flux of O2 to the atmosphere and the export of organic carbon (Eppley and Peterson, 1979) (when all are expressed in the same units, e.g., moles of carbon). Such an ideal state probably rarely exists because the euphotic zone is a dynamic place. Unfortunately, there have been no studies where all three fluxes were measured at the same time. Part of the difficulty is that each flux needs to be integrated over different time scales. The oxygen flux approach has been applied in the subarctic north Pacific (Emerson et al, 1991) and subtropical Pacific (Emerson et al, 1995, 1997) and Atlantic (Jenkins and Goldman, 1985). The organic carbon export approach has... 

Shah and Jenkins (2000) in a review of mental health economic studies from around the world identified 40 cost-of-illness studies, of which five covered all disorders, one neuroses, two panic disorders and one anxiety. All were from developed countries. There were numerous cost-effectiveness studies but none involving the anxiety disorders specifically. One study in the UK examined the cost-benefit analysis of a controlled trial of nurse therapy for neurosis in primary care (Ginsberg et al, 1984). 

Evaluation of the economics of mental illness in primary care is an ongoing initiative of the UK Department of Health (Lloyd and Jenkins, 1995). A similar American study in Washington State included sub-threshold anxiety or depression, but these imposed relatively little economic load compared with disorder-level anxiety or depression (Simon et al, 1995). Mental health treatment accounted for only a small part of overall utilization, approximately 5%. Nevertheless, most patients with anxiety or depressive disorders showed considerable improvement. This was accompanied by only modest reductions in cost. 

Blaedel WJ, Jenkins RA. 1975. Study of the electrochemical oxidation of reduced nicotinamide adenine dinucleotide. Anal Chem 47 1337-1343. 

Drucker, D. B. Jenkins, S. A. Applications of mass spectrometry including combined gas chromatography-mass spectrometry in taxonomic studies of bacteria. Biochem. Soc. Trans. 1989,17, 245-249. 

In an in vitro study in which phenylhydroxylamine (0.5 milligram per milliliter (mg/ mL)) was added to samples of rat and human blood, blood from the human subjects produced less methemoglobin in the human subjects than in the rats (approximately 35% in human blood and 60% in rat blood) (Jenkins et al. 1972). There was no more variation in methemoglobin levels among the cells from different humans than among the cells from different rats. 

Anti-cancer properties of diflubenzuron require elucidation. The indication that one or more hydroxylated forms of diflubenzuron can regulate growth of mouse tumor cells provides a basis for further studies to identify and isolate the most active analog of this compound, and it suggests that other benzoylphenyl ureas may have similar properties (Jenkins et al. 1986). 

Jenkins V, Shilling V, Fallowfield L, Howell A, Hutton S (2004) Does hormone therapy for the treatment of breast cancer have a detrimental effect on memory and cognition A pil study. Psychooncology 13 61-66... 

The first metal-catalyzed [4 +2]-reaction of tethered dienes with 7r-systems was reported by Wender and Jenkins using alkynes initially as the two-carbon component.21 This study was based on the earlier observation by Wender and Ihle that in the [4 + 4]-cycloaddition of bis-dienes a competing side-reaction is the [4 + 2]-cycloaddition of the diene with a mono-ene portion of a second diene. The extension of this reaction to the synthesis of seven-membered rings by trapping the metallacycloheptadiene with CO, a formal [4 + 2 + l]-cycloaddition, has been shown in preliminary studies to be feasible. For example, tethered diene-yne 160 can be converted to cycloheptadienone 163 in an Rh(l)-catalyzed [4 + 2 + l]-reaction with CO, albeit the [4 + 2]- and [2 + 2 + l]-reaction products dominate (Equation (29)). The mechanistic scheme (Scheme 44) illustrates the possible metallacyclic intermediates leading to the observed products and provided the conceptual basis for the realization of three novel reaction types ([4 + 2], [2 + 2 + 1], and [4 + 2 + 1 ]).1... 

This paper investigates the radical chemistry of the clean marine boundary layer in the Southern Ocean during the SOAPEX-2 (Southern Ocean Photochemistry Experiment 2) campaign using an observationally constrained box-model based on the Master Chemical Mechanism (Jenkin et al., 1997, 2003 Saunders et al., 2003). The primary aim of SOAPEX-2 was to study free radical chemistry in the remote marine boundary layer in the Southern Hemisphere. Sections 2 and 3 of this paper describe the SOAPEX-2 site and the measurements that were made during the campaign. Section 4 describes the models used and Sect. 5 presents the results. Finally, Sect. 6 contains the summary and the conclusions. 

Govaerts et al. (2004) proposed a parallel /1-helix model for prion rods that is consistent in overall dimensions with their low-resolution EM studies of two-dimensional PrP 27-30 crystals (Wille et al, 2002). In this model, residues 89-174 form 4 coils, or complete helical turns (Jenkins and Pickersgill, 2001), of a left-handed, parallel /Hielix (Fig. 5B). The coils of one monomer are proposed to stack on the coils of another to form an extended triangular -structure. Three of these triangular units pack together to form the fibril (Fig. 5G and D). The G-terminal a-helices (a2 and a3) of monomeric PrP are proposed to retain their native structure in the fibril and pack around the outside of the trimer (Fig. 5G and D). The presence of these helices in the prion rods is consistent with antibody binding studies (Peretz et al, 1997), the presence of a disulfide bond (Turk et al, 1988), and FTIR measurements (Wille et al, 1996). 

Serum calcium levels were depressed with the feeding of 18 to 100 g of wheat bran to human subjects in the study by Heaton and Pomare (10) but were unaffected by the feeding of approximately 20 g of wheat fiber in the study by Jenkins et al. (19). Since blood serum calcium levels tend to be resistant to change except under conditions of severe calcium deficiency, measurement of blood serum calcium levels is probably not sufficiently sensitive to indicate change in calcium nutritional status in short-term feeding studies. 

Edgell KW, Jenkins EL, Lopez-Avila V, et al. 1991. Capillary column gas chromatography with nitrogen-phosphorus detection for determination of nitrogen- and phosphorus-containing pesticides in finished drinking waters Collaborative study. J Assoc Off Anal Chem 74 295-309. 

It should, however, be mentioned that Mulliken s study of the BO system has been followed over the years by many others, An extensive study by Jenkins and McKellar (1932) should be mentioned explicitly. This study involved the long wavelength band of BO. The same method as that used by both Jevons and Mulliken to produce the BO was used in this work. The new (present day) quantum mechanics was used in the theoretical interpretation. Both the vibrational and the rotational isotope effects were observed and agree with theory. One motivation for this work was to determine how well the isotopic ratio of the square roots of the two relevant isotopic masses (10B and nB) agrees with the ratio obtained from Aston s mass spectrometric measurements and hence how well isotopic mass ratios determined from band spectra compare with those obtained using Aston s mass spectrograph. 

Jenkins, E. (1984). Impact of social conditions A study of the works of American black scientists and inventors. Journal of Black Studies, 74(4), 477-491. 

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