Maximizing Your Impact in Immigration Cases from Start to Finish
This course provides a comprehensive overview of the topic of geophysical surveys using electrical and electromagnetic methods. All materials, including soil and rock, have an intrinsic property, resistivity, that governs the relation between the current density and the gradient of the electrical potential.
Variations in the resistivity of earth materials, either vertically or laterally, produce variations in the relations between the applied current and the potential distribution as measured on the surface, and thereby reveal something about the composition, extent, and physical properties of the subsurface materials. The various electrical geophysical techniques distinguish materials through whatever contrast exists in their electrical properties. Materials that differ geologically, such as described in a lithologic log from a drill hole, may or may not differ electrically, and therefore may or may not be distinguished by an electrical resistivity survey.
Properties that affect the resistivity of a soil or rock include porosity, water content, composition (clay mineral and metal content), salinity of the pore water, and grain size distribution.
Topics:
Intended Audience: This course is intended for professional land surveyors as well as petroleum, civil, geotechnical, environmental, and other engineering professionals whose job description may require an intermediate knowledge of electrical and electromagnetic geophysical surveying methods.
Publication Source: USACE
Immigration Attorney at American Immigration Lawyer’s Association (AILA)
“Attorney Andrea Aguilar obtained her Doctor of Jurisprudence from St. Mary’s School of Law in 2010. She also attended Baylor University where she graduated magna cum laude and received a Bachelor of Business Administration. During her career, she opened her own practice for a year and then joined the Refugee and Immigrant Center for Education and Legal Services (RAICES), a non-profit immigration legal aid firm. While working as the Managing Attorney for them, she helped establish the Dallas and Fort Worth branch offices. Since then Andrea has worked as a private-practice attorney. In 2010, she was licensed by the State Bar of Texas and is currently part of the Abogado Manuel Diaz Law Firm, her primary focus in Immigration Law. She is immigration board certified.”
Host and Journalist
Tim Wall is a journalist whose work has appeared in Discovery News, Scientific American, Live Science, Honduras Weekly, Petfood Industry and other outlets. He is the author of "Carpe Eat'um: Invasive Carp Cookbook." Wall assists his wife in her Indigenous-woman-owned, Spanish-immersion early learning center. He is a former biologist and worked on the Human Genome Project. Wall served in the Peace Corps in Honduras, where he met his wife.
