Hi. I do lots of academic editing in English, often for authors for whom English is a second language. After looking over the 2 attached examples, I see that your needs are similar to theirs, and I can edit the scientific papers you have. Although I live in Brazil now, I´m an American technical writer, editor and proofreader, a native English speaker with excellent language skills and years of experience at revising academic writing, books and other texts. I use Track Changes to show you all my corrections of English grammar, spelling, vocabulary, punctuation and sentence structure, and offer suggestions for improving the clarity and organization of what´s been written, when needed. I coordinate the technical support group for what might be referred to in English as a Watershed Basin Committee near Rio de Janeiro, where I specialize in river and forest-related projects, and most of the revision of scientific papers is for professors and post-grads of Brazilian universities wishing to publish in English outside the country. I am familiar with the technical terms used in a wide variety of areas of knowledge. My basic fixed rate for editing is $10/1000 words, with discounts for large texts and for work that is less urgent, thus allowing me more time for my other commitments. Since Freelancer.com doesn´t allow me to attach samples in this first message, please contact me for further discussion, and in my reply to you I can attach samples of my past work. Regards, David