Minority Newcomers: Fair Comparisons of Immigrants and the Native Born

Comparisons of the mostly "minority" foreign-born and mostly "white" native-born populations that fail to account for the socioeconomic impact of ethnicity incorrectly suggest that place of birth, rather than minority status, is the primary factor explaining disparities between immigrants and natives. However, a more accurate -- and fair -- comparison of immigrants and natives within the same ethnic group suggests otherwise

THE ROLE OF AGRICULTURAL ECONOMICS IN A CHANGING ENVIRONMENT

Environmental Economics and Policy,

The Myth of Immigrant Criminality and the Paradox of Assimilation

It is a myth that immigrants increase the amount of crime in the United States. Data from the U.S. census and other sources show that for every ethnic group -- without exception -- incarceration rates among young men are lowest for immigrants. This holds true especially for the Mexicans, Salvadorans, and Guatemalans who make up the bulk of the undocumented immigrant population

Portable laser absolute gravimeter study Final report

Design and development of portable laser Doppler gravimeter mode

Velocity map imaging of the dynamics of the CH3 + HCl -> CH4 + Cl reaction using a dual molecular beam method

International audienceThe reactions CH3 + HCl → CH4 + Cl(²P_3/2) and CD₃ + HCl → CD₃H + Cl(²P_3/2) have been studied by photo-initiation (by CH₃I or CD₃I photolysis at 266 nm) in a dual molecular beam apparatus. Product Cl(²P</sub>3/2</sub>) atoms were detected using resonance enhanced multi-photon ionisation and velocity map imaging, revealing product translational energy and angular scattering distributions in the centre-of-mass frame. Image analysis is complicated by the bimodal speed distribution of CH₃ (and CD₃) radicals formed in coincidence with I(²P_3/2) and I(²P_1/2) atoms from CH₃I (CD₃I) photodissociation, giving overlapping Newton diagrams with displaced centre of mass velocities. The relative reactivities to form Cl atoms are greater for the slower CH₃ speed group than the faster group by factors of ~1.5 for the reaction of CH₃ and ~2.5 for the reaction of CD₃, consistent with the greater propensity of the faster methyl radicals to undergo electronically adiabatic reactions to form Cl(²P_1/2). The average fraction of the available energy becoming product translational energy is = 0.48 ± 0.05 and 0.50 ± 0.03 for reaction of the faster and slower sets of CH₃ radicals, respectively. The Cl atoms are deduced to be preferentially forward scattered with respect to the HCl reagents, but the angular distributions from the dual beam imaging experiments require correction for under-detection of forward scattered Cl products

Recognition and Management of Psychiatric Emergencies

Emergencies are simply unforeseen occurrences which present themselves to physicians in a variety of ways. Indeed, a physician is not the first person on hand for most emergencies but may merely be called upon for appropriate intervention. Any of us can be presented with an emergency, psychiatric or otherwise, at any moment. However, each of us has his own particular probability of sampling psychiatric emergencies, depending upon who he is and what he does. In actual fact, psychiatric emergencies more often confront people other than psychiatrists, for example, the policeman, the social worker, and the general practitioner (Ewing, 1965). As in most medical matters, prevention is preferable to cure. Thus, anticipation of complications and the early detection of pending emergencies are skills to be cultivated--something I will talk about later

Measuring the Regional Economic Response to Hurricane Katrina

Naturkatastrophe; Sturm; Makroökonomischer Einfluss; USA