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The chip traps light at the edges of gold and silver nanoparticles. When biological or chemical molecules like the ones that make up cocaine land on the chip’s surface, some of the captured light interacts with the molecules and is “scattered” into recognizable patterns that act as fingerprints, revealing information about what compounds are present. 362

The big questions at stake were whether Roundup can cause cancer and, if so, whether Monsanto failed to warn consumers about the product's cancer risk.In March 2015, the World Health Organization's International Agency for Research on Cancer (IARC) said the key ingredient in Roundup, glyphosate, is "probably carcinogenic to humans.""For the herbicide glyphosate, there was limited evidence of carcinogenicity in humans for non-Hodgkin lymphoma," the report states.But Monsanto has long maintained that Roundup does not cause cancer, and that the IARC report is greatly outnumbered by studies saying glyphosate is safe."More than 800 scientific studies, the US EPA, the National Institutes of Health and regulators around the world have concluded that glyphosate is safe for use and does not cause cancer," said Scott Partridge, Monsanto's vice president of strategy.He highlighted the Agricultural Health Study, which studied the effects of pesticides and glyphosate products on farmers and their spouses from 1993 to 2013."Many had already been using Roundup and other formulated products (since) it first came on the market," Partridge said.A summary of that study said "no association was apparent between glyphosate and any solid tumors or lymphoid malignancies overall, including NHL (non-Hodgkin's lymphoma).""We all have sympathy for Mr. Johnson," Partridge said. "It's natural he's looking for answers. Glyphosate is not the answer."But Litzenburg said glyphosate isn't the big problem -- Roundup is. He said the interaction between glyphosate and other ingredients in Roundup cause a "synergistic effect" that makes the product more carcinogenic.Monsanto spokeswoman Charla Lord disputed that notion, saying regulatory authorities help ensure Roundup as a whole is safe."The safety of each labeled use of a pesticide formulation must be evaluated and approved by regulatory authorities before it is authorized for sale," she said.The National Pesticide Information Center?-- a cooperative between Oregon State University and the EPA -- said studies on cancer rates in humans "have provided conflicting results on whether the use of glyphosate containing products is associated with cancer." 2231

The crash happened just before 1:30 a.m. Monday on the southbound side of I-15 near Lilac Road, according to the California Highway Patrol. 139

The controversy over my emails quickly cast a shadow over our efforts and threw us into a defensive crouch from which we never fully recovered, Clinton writes. 159

The driver, Julian Garcia, said he was on his way home from work when he slammed into a large Eucalyptus tree that uprooted and fell across both lanes. 151

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