A spectrophotometric method has been used to determ in e the dissociat ion constants of o-chloroanilinium ion, m-n itroanilini um ion , and 4-chloro-2,6-din itrophenol in methanolwater solvents at 25 °C. The ranges of solvent composition s (in weigh t percent metha nol) were as follows: o-ehloroan ilinium ion , 0 to 99.9; ?n-nitroanilinium ion, 0 to 93.7; and 4-ehloro-2,6-dinitrophenol, 0 to 33...

objective: metal concentrations in 53 soil samples of shahr-e-babak were determined.  methods: assessment of enrichment factor and geo-accumulation index revealed higher degree of contamination of cd, pb, and cu in soil samples. moreover, results of metal fractionation study revealed high amount of cd and pb are associated in weakly bounds may lead to environmental risk of these metals.  result...

a r t i c l e i n f o We evaluate the role of gold and other precious metals relative to volatility (Volatility Index (VIX)) as a hedge (negatively correlated with stocks) and safe haven (negatively correlated with stocks in extreme stock market declines) using data from the US stock market. Using daily data from November 1995 to November 2010, we find that gold, unlike other precious metals, s...

We aim to study whether lax environmental regulations induce comparative advantages, causing the least-regulated countries to specialize in polluting industries. The study is based on Trefler and Zhu’s (2005) definition of the factor content of trade. For the econometrical analysis, we use a cross-section of 71 countries in 2000 to examine the net exports in the most polluting industries. We tr...

Boyer, Herbert (Yale University, New Haven, Conn.). Conjugation in Escherichia coli. J. Bacteriol. 91:1767-1772. 1966.-The sex factor of Escherichia coli K-12 was introduced into an E. coli B/r strain by circumventing the host-controlled modification and restriction incompatibilities known to exist between these closely related strains. The sexual properties of the constructed F(+) B strain and...

─ In this study, electric field strength (E) levels were measured on Ondokuz Mayıs University’s Kurupelit Campus and Faculty of Medicine Hospital in Samsun, Turkey between years 2013-2015. 840 short term and two long term measurements were performed using PMM–8053 and SRM–3006 at 60 different locations of which 30 were on both the campus and hospital. The results show that the measured E levels...

In this paper I study the e¤ects of environmental regulation which establishes upper and lower binding targets to pollution emissions. Essentially, I deal with the properties of a stochastic model of pollution control in continuous-time under emission targets and uncertainty, emphasizing dynamic nonlinearities. Inside the targets pollution behaves as if it were freely ‡oating until it hits one ...

Jin-Kyu Yang,1,* Carl Schreck,2 Heeso Noh,1 Seng-Fatt Liew,1 Mikhael I. Guy,3 Corey S. O’Hern,4,2 and Hui Cao1,2 1Department of Applied Physics, Yale University, New Haven, Connecticut 06520-8482, USA 2Department of Physics, Yale University, New Haven, Connecticut 06520-8120, USA 3Science & Research Software Core, Yale University, New Haven, Connecticut 06520-8286, USA 4Department of Mechanical...

Sahil Agarwal, ∗ Fabio Del Sordo, 3, 4 and John S. Wettlaufer 4, 5, 6 Program in Applied Mathematics, Yale University, New Haven, USA Departments of Geology & Geophysics, Yale University, New Haven, USA Department of Astronomy, Yale University, New Haven, USA Nordita, Royal Institute of Technology and Stockholm University, SE-10691 Stockholm, Sweden Departments of Geology & Geophysics, Mathemat...