“Not learning, but ...” - breaking and educational processes

With over 30 years of tradition, breaking in Germany provides fascinating insights into the learning of dance in Hip Hop culture, reaching from informal street learning to the introduction of courses in educational institutions. This article draws information from a qualitative empirical study based on the Grounded Theory Methodology. The study asked subjects ranging from first-generation German B-Boys and B-Girls to teenage students about how they have learned and currently learn to break. The interview material reveals a rich and self-regulated learning culture with strong impact on protagonists. A synergy of social, aesthetic, and ethical principles seems to be characteristic, creating a gravitational field of learning with a unique and complex form of imitation at its core. (DIPF/Orig.

Polarization-dependence of palladium deposition on ferroelectric lithium niobate (0001) surfaces

We investigate the effect of ferroelectric polarization direction on the geometric properties of Pd deposited on the positive and negative surfaces of LiNbO$_3$ (0001). We predict preferred geometries and diffusion properties of small Pd clusters using density functional theory, and use these calculations as the basis for kinetic Monte Carlo simulations of Pd deposition on a larger scale. Our results show that on the positive surface, Pd atoms favor a clustered configuration, while on the negative surface, Pd atoms are adsorbed in a more dispersed pattern due to suppression of diffusion and agglomeration. This suggests that the effect of LiNbO$_3$ polarization direction on the catalytic activity of Pd [J. Phys. Chem. \textbf{88}, 1148 (1984)] is due, at least in part, to differences in adsorption geometry. Further investigations using these methods can aid the search for catalysts whose activities switch reversibly with the polarization of their ferroelectric substrates

Genome sequence of strain HIMB30, a novel member of the marine Gammaproteobacteria

Strain HIMB30 was isolated from coastal Hawaii seawater by extinction culturing in seawater-based oligotrophic medium. It is a phylogenetically unique member of the class Gammaproteobacteria that is only distantly related to its closest cultured relatives. Here we present the genome sequence of strain HIMB30, including genes for proteorhodopsin-based phototrophy and the Calvin-Benson-Bassham cycle

Genome sequence of strain HIMB55, a novel marine gammaproteobacterium of the OM60/NOR5 clade

Strain HIMB55 is a phylogenetically unique member of the OM60/NOR5 clade of the Gammaproteobacteria isolated from coastal seawater of Kaneohe Bay on the northeastern shore of Oahu, Hawaii, by extinction culturing in seawater-based oligotrophic medium. Here we present the genome sequence of strain HIMB55, including genes for bacteriochlorophyll-based phototrophy

Genome sequence of strain HIMB624, a cultured representative from the OM43 clade of marine Betaproteobacteria

Strain HIMB624 is a planktonic marine bacterium within the family Methylophilaceae of the class Betaproteobacteria isolated from coastal seawater of Oahu, Hawaii. This strain is of interest because it is one of few known isolates from an abundant clade of Betaproteobacteria found in cultivation-independent studies of coastal seawater and freshwater environments around the globe, known as OM43. Here we describe some preliminary features of the organism, draft genome sequence and annotation, and comparative genomic analysis with one other sequenced member of this clade (strain HTCC2181). The 1,333,209 bp genome of strain HIMB624 is arranged in a single scaffold containing four contigs, and contains 1,381 protein encoding genes and 39 RNA genes

Was kann man aus dem gegenwärtigen Entwicklungsstand der Beratung für die Gestaltung kommunikativer Sozialforschung lernen?

Die Analyse der offenbar unvermeidlichen Rückkopplungsphänomene, die in Gesprächen gänzlich unabhängig von den Intentionen der Individuen ablaufen, weist Beratern und Wissenschaftlern den Weg zu einem neuen Verständnis sozialer Kommunikation: Nicht als Verknüpfung psychischer Akte, sondern als latente Spiegelung sozialer Strukturen, Dynamiken, Umweltbeziehungen und Identitätskonzepte. In diesem Zusammenhang wird das eigene methodische Selbstverständnis beschrieben, und der Ablauf der kommunikativen Sozialforschung wird skizziert. Ihre Besonderheit liegt darin, dass sie nicht nur soziale Kommunikation zum Gegenstand hat, sondern dass sie den gesamten Forschungsprozess von der Konstitution des Forschungssystems über die Datenerhebung und Auswertung bis hin zur Rückkoppelung der Ergebnisse in die alltägliche Praxis als Kommunikation gestaltet

Sampling of basement fluids via circulation obviation retrofit kits (CORKs) for dissolved gases, fluid fixation at the seafloor, and the characterization of organic carbon

© The Author(s), 2020. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Lin, H. T., Hsieh, C. C., Repeta, D. J., & Rappé, M. S. Sampling of basement fluids via circulation obviation retrofit kits (CORKs) for dissolved gases, fluid fixation at the seafloor, and the characterization of organic carbon. Methodsx, 7, (2020): 101033, doi:10.1016/j.mex.2020.101033.The advanced instrumented GeoMICROBE sleds (Cowen et al., 2012) facilitate the collection of hydrothermal fluids and suspended particles in the subseafloor (basaltic) basement through Circulation Obviation Retrofit Kits (CORKs) installed within boreholes of the Integrated Ocean Drilling Program. The main components of the GeoMICROBE can be converted into a mobile pumping system (MPS) that is installed on the front basket of a submersible or remotely-operated-vehicle (ROV). Here, we provide details of a hydrothermal fluid-trap used on the MPS, through which a gastight sampler can withdraw fluids. We also applied the MPS to demonstrate the value of fixing samples at the seafloor in order to determine redox-sensitive dissolved iron concentrations and speciation measurements. To make the best use of the GeoMICROBE sleds, we describe a miniature and mobile version of the GeoMICROBE sled, which permits rapid turn-over and is relatively easy for preparation and operation. Similar to GeoMICROBE sleds, the Mobile GeoMICROBE (MGM) is capable of collecting fluid samples, filtration of suspended particles, and extraction of organics. We validate this approach by demonstrating the seafloor extraction of hydrophobic organics from a large volume (247L) of hydrothermal fluids. • We describe the design of a hydrothermal fluid-trap for use with a gastight sampler, as well as the use of seafloor fixation, through ROV- or submersible assisted mobile pumping systems. • We describe the design of a Mobile GeoMICROBE (MGM) that enhances large volume hydrothermal fluid sampling, suspended particle filtration, and organic matter extraction on the seafloor. • We provide an example of organic matter extracted and characterized from hydrothermal fluids via a MGM.We dedicate this work to Dr. James P. Cowen, who had envisioned and constructed the integrated instrumentation, GeoMICROBE, to monitor the sub-basement biosphere. We thank the chief scientists, captains, crews, and science teams on board R/V Atlantis cruises AT15-35, AT15-51, AT15-66, AT18-07, MSM20-5, AT26-03, and AT26-18, and the pilots and crews of ROV Jason II and HOV Alvin. We thank our student assistants, Natalie Hamada, Kathryn Hu, Ryan Matzumoto, Everette Omori, and Fan-Chieh Chuang. This work was supported by the National Science Foundation-Microbial Observatory Project (NSF-MCB06-04014 to J. P. Cowen), Center for Dark Energy Biosphere Investigations (C-DEBI; NSF award OCE-0939564 to M. S. Rappé), NSF award OCE-1260723 (to M. S. Rappé), and the Ministry of Science and Technology of Taiwan award (MOST 105-2119-M-002-034, MOST 107-2611-M-002-002, MOST 108-2611-M-002-006, and MOST109-2611-M-002-008 to H.-T. Lin). Ministry of Education (MOE) Republic of China (Taiwan) 109L892601 to H.-T. Lin. NSF award OCE-1634080 (to D. J. Repeta), the Simons Foundation-Simons Collaboration on Ocean Processes and Ecology (SCOPE) award 329108 (to D. J. Repeta), the Gordon and Betty Moore Foundation award 6000 (to D. J. Repeta). This paper is SOEST contribution number 11121, HIMB contribution 1804 and C-DEBI contribution number 543