BACKGROUND Fluoride is an essential element for human health. However, excess fluoride in drinking water may cause dental and/or skeletal fluorosis. Drinking water is the main route of fluoride intake. The aim of the present study was to measure fluoride levels in human breast milk collected from two regions of Golestan Province, northern Iran with different amount of fluoride concentration of ...

Les dŽcouvertes de pŽtrole ou de gaz dans des conditions sŽvres de tempŽrature (plus de 150¡C) ou de pression (plus de 50 MPa) se comptent dans plusieurs bassins ˆ travers le monde. En mer du Nord, on prŽvoit de mettre en production des gisements dont les conditions de fond vont jusqu'ˆ 110 MPa et 190¡C. Ces caractŽristiques constituent un dŽfi pour la prŽdiction des propriŽtŽs des fluides de ...

Une mŽthode indirecte pour cartographier les gaz bržlŽs dans un moteur ˆ allumage commandŽ a ŽtŽ dŽveloppŽe. Elle est fondŽe sur une visualisation ˆ partir de la fluorescence induite par laser (LIF) du mŽlange air-carburant non bržlŽ et ensemencŽ avec du biacŽtyl. Les gaz bržlŽs provenant ˆ la fois des recirculations internes et externes sont observŽs. Ce type de diagnostic est complŽmentaire d...

A water-soluble transformation product of 2,4-D. Arch. Biochem. Biophys. 35: 171-175. 1952. 4. JAWORSKI, E. G. and BUTTS, J. S. Studies in plant metabolism. II. The metabolism of C'4 labeled 2,4-dichlorophenoxyacetic acid in bean plants. Arch. Biochem. Biophys. 38: 207-218. 1952. 5. MITCHELL, J. W. and BROW-N, J. W. Movement of 2,4-dichlorophenoxyacetic acid stimulus and its relation to the tra...

The interparticle interactions in ultracold atomic gases can be tuned using Fano–Feshbach scattering resonances, which occur in low–energy collisions between two atoms. These resonances are usually obtained using an external static magnetic field. They turn ultracold atomic gases into an experimental playground for the investigation of novel phases in which Quantum Physics plays a key role. The...

Partial Identification of Willingness-to-Pay Using Shape Restrictions with an Application to the Value of a Statistical Life Economists often analyze cross-sectional data to estimate the value people implicit place on attributes of goods using hedonic methods. Usually strong enough assumptions are made on the functional form of utility to point identify individuals’ willingness-to-pay (WTP) for...

To elicit an affected population’s preferences for, e.g., better health or environment stated preference (SP) methods are often used. SP methods are based on hypothetical market settings which necessitates validity tests of the results. This study describes a validity test on the basis of theoretical predictions and empirical findings for private and public safety measures. According to the tes...

Improving biological sustainability through health and wellness improvements in the built environment is currently being applied to high-end real estate development in both the residential and commercial environment in the United States. However, the market for health and wellness extends well beyond the top income bracket. This study adopts a choice experiment (CE) approach to investigate indi...