Browse Archive

Here you find all contributions made by external authors to JUnQ. This includes peer-reviewed articles and editorial board reviewed open questions.

Apr 142016
 

M. Dornbusch, T. Biehler, M. Conrad, A. Greiwe, D. Momper, L. Schmidt, M. Wiedow

University of Applied Sciences, Adlerstraße 32, 47798 Krefeld, Germany

Received 12.06.2015, accepted 29.02.2016, published 14.04.2016

JUnQ, 6, 2, 1–7, 2016

The formation of a conversion layer for corrosion protection based on phytic acid (PA) solutions is described several times in the literature. The promising results induced us to verify the performance of PA based conversion layers as pre-treatment for organic coatings. The spectroscopic and optical analysis with infrared spectroscopy, atomic force microscopy, and scanning electron microscopy of the generated layer strengthened the hypothesis of a corrosion protective layer. Furthermore, the electrochemical analysis with cyclic voltammetry supported it but the results of the electrochemical impedance spectroscopy provided a first hint of an instable layer. Unfortunately, all kinds of tested conversion layers based on PA with and without a combination with molybdate increased the delamination of an applied coating and accelerated the corrosion process in the salt spray test. Therefore, all investigated PA based conversion layers are not suitable as pre-treatments for organic coatings.

Download the article here: Unstable Pretreatment of Steel and Zinv Surfaces Based on Phytic Acid

Jan 222016
 

Klaus Roth is an emeritus professor at the Freie Universitaet Berlin. He studied chemistry at the Freie Universitaet Berlin from 1964 – 1969 and completed his dissertation at the same university in 1973. After a post-doctoral stay at the Institute for Medical Research in Mill Hill, London from 1979 – 1980, he completed his habilitation at the Freie Universitaet Berlin in 1981. Between 1986 – 1988, he held a position as visiting professor at the University of California in San Francisco, after which he returned to his home university as extraordinary professor and became full professor in 2000. During his research career, he dealt with many aspects of NMR spectroscopy and also popular science such as the chemistry behind licorice sweets, balloons, and la fee verte. Furthermore, he is interested in the Ig Nobel Prize, a scientific award similar to the “regular” Nobel Prize but somewhat more peculiar. In this interview, he gives an insight into this alternative award.

Find the Interview here: How to Win an (Ig)-Nobel Prize

Jan 222016
 

Andreas Mueller

JUnQ, 6, 1, IV – VI, 2016

Today, we find modern technologies everywhere in our daily life: computers, smart phones, navigation systems, wearables, high-tech medicine. Usually, they did not come by chance. These technologies are a result of fundamental research and breakthroughs and were developed by scientists, engineers and clever inventors.

Read the full article here: Do We Need Fundamental Research?

Jan 212016
 

Theresa Lueckner

JUnQ, 6, 1, XV–XVI, 2016

When relating light to biology, the first thing that pops into one’s mind is photosynthesis. The sunlight shines onto the leaves, photons excite the light-sensitive molecule chlorophyll and with the use of several cascades, nature produces carbohydrates and oxygen out of carbon dioxide and water. The usage of light is the fundament of eukaryotic life on earth and there is only little life that can exist without it.

Read the full article here: Light in Biology

Jan 212016
 

The Leibniz Association was founded in 1995 after a fusion of institutions of the Western German association “Blaue Liste” and other research institutions of the former German Democratic Republic (GDR). It was named after the German polymath Gottfried Wilhelm Leibniz (1646 – 1716). The association is particularly known in the eastern parts of Germany, being the biggest research association there. Interestingly, the Leibniz Association even patronizes several museums and the most commonly known are the Senckenberg institution in Frankfurt a. M. and Deutsches Museum in Munich. We spoke with Christoph Herbort-von Loeper who is deputy press officer of the Leibniz Association.

Find the Interview here: With the Leibniz Association

Jan 212016
 

The International Year of Light and Light-Based Technologies (IYL2015) was a global event in 2015 to increase the public interest and knowledge regarding optical technologies and research. Prof. Joe Niemela is the Global Coordinator from the IYL Secretariat and was responsible for the coordination of all activities.

Find the Interview here: International Year of Light 2015

Jan 202016
 

Susanne M. Hoffmann

JUnQ, 6, 1, X–XII, 2016

Thinking about light, we immediately realize three directions of human’s dealing with it: first, the observation of light, second, the myth of and praying to light and third, the usage and rationalization of light in physics and technology. All three directions of our modern world have roots in very old history and accompany mankind from their early beginnings and in every culture. The emotional connection humans feel with celestial games of light and darkness as well as warmth and coolness during seasons and lunar phases caused early and perpetuating observations and consequently, the knowledge of calendar signs. Since calendars have always been used for religious purpose to date public holiday and so on, making calendars and observing the celestial rhythms have been a special duty of priests and the gods have been located in or above the sky. To summarize, we can conclude that light influences all directions of our life. The question of this article is how long back in history we can pursue the traces of human relations to light.

Read the full article here: A Brief History of Light

Jan 202016
 

The Fraunhofer-Gesellschaft is one of Germany’s most important research associations with its main emphasis on applied research. It was founded in 1949 and it goes all the way back to Joseph von Fraunhofer (1787 – 1826). He was famous for his way of how to conduct science with accuracy and precision combined with a sense for entrepreneurship, which is why he became the role model for the Fraunhofer-Gesellschaft. We spoke with Prof. Dr. Michael Maskos and Beate Koch. Prof. Dr. Michael Maskos is the director of Fraunhofer ICT–IMM in Mainz,which focuses among others on the synthesis and characterization of nanoparticles for different applications. Beate Koch is head of internal and external communications of the Fraunhofer-Gesellschaft.

Find the Interview here: Fundamental vs. Applied Research

Jan 152016
 

Dear Reader,

When you read this issue of JUnQ, you might wonder why there is no article section. This is not – as one might think at first – due to a lack of submissions. Quite the contrary, we constantly receive articles, showing the need for a platform like JUnQ. The real difficulty lies in finding other scientists who are willing to put personal time and effort into reviewing these articles. Although this might be a general problem for many scientific journals, we do our best to ensure that it will not be a permanent one for JUnQ as the publishing of negative and null results still is supposed to be its key feature.

Read the whole Editorial Note by Philipp Heller.

Jan 122016
 

junq6.1_coverDear Readers,

we are pleased to announce the 11th issue of JUnQ. As topic of our newest issue, we chose to line up fundamental research and applied research. Among others, we have talked to the Fraunhofer-Gesellschaft and the Leibniz Association in order to get a greater insight into the two different forms of research and Dr. Andreas Mueller asks: Do we need fundamental research? In addition, we highlight last year’s international year of light 2015, where we learn about the history of light and how our fundamental life-giver has become very important for neurology.

We hope you enjoy the newest issue of JUnQ!

— Kristina Klinker on behalf of the editorial board

Download JUnQ Volume 6 Issue 1