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Vi Hart tells this lovely mathematical story.

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After some time my cookiecutter templates for my data analysis work flow is finally in a state that I can show the world. You can get it from github. All in all it is my way to setup a reproducible research work flow - for too long I have just copied files around. It is all about using external tools in addition to R. The most essential being make. I am very proud about the makefile that keeps code and data directories clean.

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Nice the ERJ has accepted our correspondence about the future of respiratory medicine. Hope I will have the link soon.

Unfortunately I had extremely limited room to address the statistical issues. Anyway writing this correspondence was a pleasant experience. Really hope we will have more to say soon.

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Selected Publications

Volatile organic compounds (VOCs) offer unique insights into ongoing biochemical processes in healthy and diseased humans. Yet, their diagnostic use is hampered by the limited understanding of their biochemical or cellular origin and their frequently unclear link to the underlying diseases. Major advancements are expected from the analyses of human primary cells, cell lines and cultures of microorganisms. In this review, a database of 125 reliably identified VOCs previously reported for human healthy and diseased cells was assembled and their potential origin is discussed. The majority of them have also been observed in studies with other human matrices (breath, urine, saliva, feces, blood, skin emanations). Moreover, continuing improvements of qualitative and quantitative analyses, based on the recommendations of the ISO-11843 guidelines, are suggested for the necessary standardization of analytical procedures and better comparability of results. The data provided contribute to arriving at a more complete human volatilome and suggest potential volatile biomarkers for future validation. Dedication:This review is dedicated to the memory of Prof. Dr. Anton Amann, who sadly passed away on January 6, 2015. He was motivator and motor for the field of breath research.
Curr Med Chem (23)

Volatile Biomarkers: Non-Invasive Diagnosis in Physiology and Medicine

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  • A Compendium of Volatile Organic Compounds (VOCs) Released By Human Cell Lines

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  • Aba-Cloud: Support For Collaborative Breath Research

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  • Comparative analyses of volatile organic compounds (VOCs) from patients, tumors and transformed cell lines for the validation of lung cancer-derived breath markers

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  • Multi-Capillary-Column Proton-Transfer-Reaction Time-Of-Flight Mass Spectrometry

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  • Volatile Organic Compounds (Vocs) Released By Pathogenic Microorganisms In Vitro: Potential Breath Biomarkers

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  • Characterization of volatile metabolites taken up by or released from Streptococcus pneumoniae and Haemophilus influenzae by using GC-MS

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  • Dependence of exhaled breath composition on exogenous factors, smoking habits and exposure to air pollutants

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  • Molecular analysis of volatile metabolites released specifically by Staphylococcus aureus and Pseudomonas aeruginosa

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  • Optimization Of Sampling Parameters For Collection And Preconcentration Of Alveolar Air By Needle Traps

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  • Temporal profiling of human urine VOCs and its potential role under the ruins of collapsed buildings

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