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Schon als Jugendliche sind sie vom Forscherfieber gepackt: die TeilnehmerInnen von Jugend forscht, die ein wissenschaftliches Thema gründlich und nach denselben Vorgaben untersuchen, wie sie weltweit für sorgfältige Forschung gelten. Dies ist auch so bei der anschließenden Veröffentlichung in der Jungen Wissenschaft. Die Zeitschrift für ForscherInnen unter 23 Jahren ist eine Peer-review-Zeitschrift;die Artikel gelten als zitierfähig. In den letzten 30 Jahren war die Junge Wissenschaft ein gedrucktes Magazin. Die Physikalisch-Technische Bundesanstalt (PTB) hat aus ihr ein Online-Journal gemacht, eine nichtkommerzielle Open-access-Zeitschrift. Unter Opens external link in new windowwww.junge-wissenschaft.ptb.de sind zurzeit rund 180 Originalveröffentlichungen junger ForscherInnen zu finden – und es werden laufend mehr. Demnächst wird noch eine App speziell für Tablets und Smartphones folgen. Aktuell wird beim Bundeswettbewerb von Jugend forscht am 16. Mai die...

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Magnetic resonance imaging (MRI) is an important imaging procedure in cardiology. To date, only qualitative imaging has been possible with MRI, since the measuring time is limited due to heart movements and breathing. A new image reconstruction procedure has now been developed at PTB. This method quantifies the biophysical parameters of the cardiac muscle with high spatial resolution and thus enables an objective diagnosis.

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What can we expect from the revision of the International System of Units (SI), which was approved on 16 November 2018 and will enter into force on 20 May 2019? The answer depends on who you ask – an ordinary citizen, a student, a scientist or a metrologist in industry. The editorial staff of maßstäbe has asked this question – and gathered the answers in a new issue that is just as colorful and diverse as the answers obtained (Issue 14, “Maße für alle”, only in German). You can order this issue individually or as a classroom set free of charge; alternatively, you can subscribe to maßstäbe.

phone: +49 531 592-9313,
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On the occasion of their 26th General Conference on Weights and Measures (CGPM) in November 2018 in Versailles, the signatory states of the Metre Convention decided to fundamentally reform the International System of Units (SI). This resolution stipulates that, in the future, all SI units will be based on the numerical values laid down for seven selected natural constants. In passing this resolution, the General Conference has followed a recommendation issued by the International Committee on Weights and Measures (Comité international des poids et mesures, CIPM) – the world's supreme expert committee on metrology. The new definitions of the units will come into force on 20 May 2019, World Metrology Day.

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Studierende von MINT-Fächern haben in diesem Sommer die Chance, ein zweimonatiges Forschungspraktikum in der Physikalisch-Technischen Bundesanstalt (PTB) zu absolvieren. Unter dem Motto „Dein genauester Sommer“ geht es vom 1. August bis zum 27. September 2019 um metrologische Genauigkeit, die Kunst des Messens. In der PTB werden die Messverfahren der Zukunft entwickelt und für die Industrie und die Forschung praktisch nutzbar gemacht. Die Themen der Forschungsprojekte reichen von der Erzeugung und Abfrage von Qubits für Atomuhren über die Forschung an ultrastabilen Lasern bis zur interferometrischen Längenmessung zur Weitergabe der Einheit Meter. Hochqualifizierte Kolleginnen und Kollegen sowie die erstklassige technische Ausstattung der PTB bieten die einmalige Basis für eigene Forschungserfolge. Die Bewerbungsfrist beginnt am 1. März und endet am 30. April 2019.

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Die Deutsche Telekom hat angekündigt, den Anschluss des Telefonzeitdienstes der PTB, Rufnummer 0531 512038, Ende Februar 2019 auf IP-basierte Telefonie umzustellen. Die PTB empfiehlt, bestehende Systeme über eine zusätzlich geschaltete, IP-basierte Leitung zu testen.

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In the new MPG-PTB-RIKEN Centre for Time, Constants and Fundamental Symmetries, experimental physicists with a passion for precision will jointly tackle forefront topics in fundamental physics such as the question for the constancy in time of natural constants or the subtle differences between matter and antimatter. This new initiative started on January 1, 2019; the official opening ceremony will be on April 8, 2019 at RIKEN in Tokyo, Japan.

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On the occasion of their 26th General Conference on Weights and Measures (Conférence Générale des Poids et Mesures, CGPM) on 16 November 2018 in Versailles, the signatory states of the Metre Convention resolved to fundamentally reform the International System of Units (SI). This resolution stipulates that, in the future, all SI units will be based on the values laid down for seven selected natural constants. In passing this resolution, the General Conference has followed a recommendation issued by the International Committee on Weights and Measures (Comité international des poids et mesures, CIPM) – the world’s supreme expert committee on metrology. The new definitions of the units will come into force on 20 May 2019, World Metrology Day.

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PTB is now home to a new publication, Junge Wissenschaft, an online journal (Opens external link in new windowhttps://www.jungewissenschaft.ptb.de). Young scientists (no older than 23 years old) can publish their findings in accordance with the usual rules applying to scientific publications – including a peer review process. Junge Wissenschaft is published, edited, and editorially supported by PTB’s Press and Information Office. PTB’s considerable role in the publication of this journal dates back many years, starting with a close relationship between its founding editor (Prof. Dr. Paul Dobrinski, 1927–2009) and the then President of PTB (Prof. Dr. Ernst O. Göbel). This relationship came about due to the mutual interest of the journal and PTB in supporting junior scientists in the natural sciences.

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A collaborative research centre (CRC) on diagnostic radiology called “Matrix in Vision” has been created at the Charité university hospital in Berlin (contact: Prof. Dr. Bernd Hamm). The Freie Universität Berlin, the Max Planck Institute of Colloids and Interfaces, the BAM Federal Institute for Materials Research and Testing and PTB are also involved in this CRC in addition to Charité. This collaborative research center, which is being funded by the German Research Foundation (DFG) with 11.5 million euros, has been established to find out how pathological changes to the extracellular matrix (the substance in which the body’s cells are embedded) can be visualized by means of diagnostic radiology. The scientists involved hope that their methods will contribute to the early detection of diseases. Members of staff from Division 8 of PTB are overseeing two sub-projects on quantitative and magnetic imaging.

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