cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
MIFlowCyt-EV belonging to the manuscript “EDTA stabilizes the concentration of platelet-derived extracellular vesicles during blood collection and handling”
Creators: name: van der Pol, E.
name: Buntsma, N
Publisher: name: University of Amsterdam / Amsterdam University of Applied Sciences
Year: 2021
Subjects: Health Sciences

description: MIFlowCyt-EV belonging to the manuscript “EDTA stabilizes the concentration of platelet-derived extracellular vesicles during blood collection and handling”
Consistent quantum mechanics admits no mereotopology
Creators: name: Fields, Chris
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: It is standardly assumed in discussions of quantum theory that physical systems can be regarded as having well-defined Hilbert spaces. It is shown here that a Hilbert space can be consistently partitioned only if its components are assumed not to interact. The assumption that physical systems have well-defined Hilbert spaces is, therefore, physically unwarranted.
description: 10 pages; to appear in Axiomathes
Linguistic relativity, interpretive empathy, and the "connection of ideas" : eighteenth-century theories of linguacultural development
Creators: name: McCarvill, Martin Francis Emmett
Publisher: name: University of British Columbia
Year: 2013

description: This thesis looks at theories of the emergence of linguistic difference put forward by three philosophers of the (long) eighteenth century—Gottfried Wilhelm Leibniz (1646–1716), Étienne Bonnot de Condillac (1715–1780), and Johann Gottfried Herder (1744–1803). The conventional, and in most regards accurate, assessment of these figures places them in different traditions (respectively rationalist, empiricist, romantic); however, I argue, on the matter of the growth and diversification of natural languages, they operate to a nontrivial extent on common ground, unified by a view of language as 1) creative, using metaphor, analogy, and similar figurative operations to expand its expressive base; 2) social, rooted in the desire for human communion; and 3) relativistic, meaning both that language shapes or constitutes thought and that the precise nature of this effect varies according to the individual characters of different languages. These common ideas emerge, despite the different preoccupations of their authors, as a result of their common need to grapple with the “linguistic turn” effected by the Essay Concerning Human Understanding of John Locke (1632–1704) and the emergence of proto-linguistics as a field in its own right. I then consider the implications of this creative–social–relativistic episteme for the current (twentieth- and twenty-first-century) line of research on linguistic relativity inaugurated by BL Whorf (1897–1941). I will try to illustrate that Whorf is connected to the eighteenth century, and Leibniz, Condillac, and Herder to each other, by several specific shared concepts: 1) that linguistic and cultural variation happens due to the use of words to organize the world in ways that vary across communities (what Condillac calls the “connection of ideas”); 2) that alongside or underneath its relativism, meaning is always to some degree universal and innate, a notion to which each writer considered here brings a different admixture of rationalism, empiricism, and theosophy; and 3) that Herder’s advocacy of a translinguistic, interpretive Einfühlung, or ‘empathy’, dependent on the preservation of both universal and relativistic principles, is crucial to the attainment of an intercultural harmony that respects and does not reduce the differences in linguacultural thought-worlds.
Lithium and sodium in the globular cluster M4. Detection of a Li-rich dwarf star: preservation or pollution?
Creators: name: Monaco, L.
name: Villanova, S.
name: Bonifacio, P.
name: Caffau, E.
name: Geisler, D.
name: Marconi, G.
name: Momany, Y.
name: Ludwig, H. -G.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Context. The abundance inhomogeneities of light elements observed in Globular Clusters (GCs), and notably the ubiquitous Na-O anti-correlation, are generally interpreted as evidence that GCs comprise several generations of stars. There is an on-going debate as to the nature of the stars which produce the inhomogeneous elements, and investigating the behavior of several elements is a way to shed new light on this problem. Aims. We aim at investigating the Li and Na content of the GC M 4, that is known to have a well defined Na-O anti-correlation. Methods. We obtained moderate resolution (R=17 000-18 700) spectra for 91 main sequence (MS)/sub-giant branch stars of M 4 with the Giraffe spectrograph at the FLAMES/VLT ESO facility. Using model atmospheres analysis we measured lithium and sodium abundances. Results. We detect a weak Li-Na anti-correlation among un-evolved MS stars. One star in the sample, # 37934, shows the remarkably high lithium abundance A(Li)=2.87, compatible with current estimates of the primordial lithium abundance. Conclusions. The shallow slope found for the Li-Na anti-correlation suggests that lithium is produced in parallel to sodium. This evidence, coupled with its sodium-rich nature, suggests that the high lithium abundance of star # 37934 may originate by pollution from a previous generations of stars. The recent detection of a Li-rich dwarf of pollution origin in the globular cluster NGC 6397 may also point in this direction. Still, no clear cut evidence is available against a possible preservation of the primordial lithium abundance for star # 37934.
description: 8 pages, 1 table, 2 figures. Matching A&A published version
Influence of 0-level packaging on the microwave performance of RF-MEMS devices
Creators: name: Jourdain, A.
name: Brebels, S.
name: De Raedt, W.
name: Tilmans, H. A. C.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2001
Subjects: ING-INF/01 Elettronica

description: RF-MEMS devices (Radio Frequency-MicroElectroMechanical Systems) are made of moveable and fragile structures (membranes, beams, cantilevers,…) that must be encapsulated for protection and for stable performance characteristics. Zero-level or wafer-level packaging developed so far has been limited to dc-components. This paper elaborates on the design and fabrication of a 0-level package for housing RF-MEMS devices. The fabrication process is described and packages are characterized in terms of mechanical strength, hermeticity and microwave performance in the range 1-50 GHz. Simulations and experiments show minimal impact of the package on the RF losses if the cap has a minimal height of 50 µm, if low-loss materials (e.g., glass) are used, and if matched RF feedthroughs are implemented. Finally, in a multi-switch design, we recommend to minimize the number of feedthroughs, i.e. to use a single cap for the entire design.
Plectrodes Horn 1867
Creators: name: Allsopp, Peter G.
name: Schoolmeesters, Paul
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Plectrodes

description: Plectrodes Horn, 1867
[1 species].
Type species Plectrodes pubescens Horn, 1867, by monotypy.
description: Published as part of Allsopp, Peter G. & Schoolmeesters, Paul, 2024, All genera of the world: Subfamilies Prototroginae, Cretoscarabaeinae, Dynamopodinae, Electrorubesopsinae, Phaenomeridinae, Orphninae, Allidiostomatinae, Aclopinae, Lichniinae, Melolonthinae, Oncerinae, Podolasiinae, Sericinae, Sericoidinae (Animalia: Arthropoda: Insecta: Coleoptera: Scarabaeidae), pp. 104-175 in Megataxa 12 (1) on page 126, DOI: 10.11646/megataxa.12.1.2, http://zenodo.org/record/14984437
Fremdionenstabilisierte Dicalciumsilikate - Synthese und hydraulische Reaktion
Creators: name: Pöhler, Katharina
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2016
Subjects: subject: 660

description: Da die Zementindustrie einen Anteil von 8% am weltweiten CO2-Ausstoß verursacht, ist die Produktion von nachhaltigem Zement in den Fokus von Forschung und Entwicklung gerückt. Eines dieser neuartig entwickeltes Bindemittel ist das, auf hydraulischen Calciumhydrosilikaten basierende Produkt Celitement. Im Rahmen dieser Arbeit wurden daher reaktive Calciumsilikate hergestellt und charakterisiert. Hauptaugenmerk lag dabei auf dem C2S. Durch den Einbau von Fremdionen gelang es, die Hochtemperaturmodifikationen (α’H- und α-C2S) zu stabilisieren. Hydratationsversuche unter Standardbedingungen zeigten einen Umsatz nach 100 Stunden in die C-S-H Phase. Die hydraulischen Reaktivitäten unter hydrothermalen Bedingungen wurden in situ an der Beamline SUL-X der Strahlenquelle für Synchrotronstrahlung in Karlsruhe sowie ex situ in Laborautoklaven untersucht. Durch die hydrothermale Behandlung der C2S-Phasen konnte α C2SH hergestellt werden, das für die Produktion von Celitement geeignet ist.
description: The cement industry has a global share of about 8 % on the CO2 emission. Therefore, there is increased demand for research on new sustainable binding materials as well as on clinker substitute products. A newly developed binding material based on hydraulic calcium hydrosilicates is Celitement. Therefore this work aims on the production and characterization of calcium silicates. The investigation focuses on the phase C2S. Due to the incorporation of foreign ions the high temperature modifications (α’H- and α-C2S) can be stabilized. Hydration studies under standard conditions show that C2S converted into the C-S-H phase within 100 hours. The hydraulic reactivity under hydrothermal conditions was studied by means of XRD in situ using the beamline SUL-X at the synchrotron radiation facility in Karlsruhe as well as ex situ in laboratory autoclaves. The hydrothermal treatment of the C2S samples produced α-C2SH, suitable for the production of Celitement.
Problem-based Learning in Institutional and Curricular Design at the New Model Institute for Technology and Engineering (NMITE)
Creators: name: Rogers, Helen L.
name: Hitt, Sarah J
name: Allan, Dave G
Publisher: name: Journal of Problem Based Learning in Higher Education
Year: 2021

description: NMITE’s Master’s in Integrated Engineering (MEng) was created with a unique philosophy of integrating not only traditionally separate strands of engineering, but also of integrating engineering with other disciplines such as arts, humanities, and business. This broad and deep integration is made possible by adopting the principles and practices of problem-based learning (PBL) and embedding them within predetermined module challenges. In this way, each PBL challenge highlights and hones areas of engineering expertise and embeds liberal subjects whilst maintaining the integration intrinsic to the programme. Overall, this method supports the use of block learning with deep integration of employers and the community in the educational experience.
description: Journal of Problem Based Learning in Higher Education, Early view
60GHZ-band flip-chip MMIC modules for IEEE1394 wireless adapters
Creators: name: Maruhashi, K.
name: Ito, M.
name: Ikuina, K.
name: Hashiguchi, T.
name: Matsuda, J.
name: Domon, W.
name: Iwanaga, S.
name: Takahashi, N.
name: Ishihara, T.
name: Yoshida, Y.
name: Izumi, I.
name: Ohata, K.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2001
Subjects: ING-INF/01 Elettronica

description: 60GHz-band 500-Mpbs transmitter and receiver multi-chip modules (MCMs) are presented, in which MMICs and a filter are mounted using flip-chip bonding technique. A multi-layer Low Temperature Co-fired Ceramic (LTCC) substrate is adopted for a package. The MCMs are directly bonded with printed wiring boards using ball grid array technique, achieving connections for signals and biasing. A developed 500-Mbps ASK transceiver exhibits an average output power of 10dBm and a minimum received power of – 55dBm. The transceiver is applied to the IEEE1394 wireless adapter which demonstrates 17-m communication distance in line of sight.
title: Seasonal forecasting of hydrological drought in the Limpopo Basin
title: a comparison of statistical methods
titleType: Subtitle
Creators: name: Seibert, Mathias
name: Merz, Bruno
name: Apel, Heiko
Publisher: name: Universität Potsdam
Year: 2019

description: The Limpopo Basin in southern Africa is prone to droughts which affect the livelihood of millions of people in South Africa, Botswana, Zimbabwe and Mozambique. Seasonal drought early warning is thus vital for the whole region. In this study, the predictability of hydrological droughts during the main runoff period from December to May is assessed using statistical approaches. Three methods (multiple linear models, artificial neural networks, random forest regression trees) are compared in terms of their ability to forecast streamflow with up to 12 months of lead time. The following four main findings result from the study.

1. There are stations in the basin at which standardised streamflow is predictable with lead times up to 12 months. The results show high inter-station differences of forecast skill but reach a coefficient of determination as high as 0.73 (cross validated).

2. A large range of potential predictors is considered in this study, comprising well-established climate indices, customised teleconnection indices derived from sea surface temperatures and antecedent streamflow as a proxy of catchment conditions. El Nino and customised indices, representing sea surface temperature in the Atlantic and Indian oceans, prove to be important teleconnection predictors for the region. Antecedent streamflow is a strong predictor in small catchments (with median 42% explained variance), whereas teleconnections exert a stronger influence in large catchments.

3. Multiple linear models show the best forecast skill in this study and the greatest robustness compared to artificial neural networks and random forest regression trees, despite their capabilities to represent nonlinear relationships.

4. Employed in early warning, the models can be used to forecast a specific drought level. Even if the coefficient of determination is low, the forecast models have a skill better than a climatological forecast, which is shown by analysis of receiver operating characteristics (ROCs). Seasonal statistical forecasts in the Limpopo show promising results, and thus it is recommended to employ them as complementary to existing forecasts in order to strengthen preparedness for droughts.
description: Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe, 626
The principle of symmetry of kinetic coefficients for media with ferrite inclusions and its application to nonreciprocal BI-ANISOTROPIC composites
Creators: name: Zagriadski, S.V.
name: Tretyakov, S.A.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2001
Subjects: ING-INF/01 Elettronica

description: The principle of the symmetry of kinetic coefficients (the Onsager-Casimir principle) is formulated for bi-anisotropic media containing dissipative ferrite inclusions and metal strip elements. Electrodynamic description of bi-anisotropic particles on the base of strip-line-coupled magnetostatic wave resonators is developed and analytical closed-form expressions for the tensor polarizabilities are obtained for an arbitrary direction of the bias magnetic field and an arbitrary resonator shape. The results open a pos-sibility to theoretically predict properties of novel nonreciprocal electrically controllable bi-anisotropic composites with exotic electromagnetic properties.
Random Field Induced Order in Low Dimension
Creators: name: Crawford, Nicholas
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mathematical Physics (math-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Probability (math.PR)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 82-XX, 60-XX

description: Consider the behavior of a classical O(n) model in a weak random external field acting along some $k$-dimensional subspace in $\R^n$ with $k
description: 5 pages. Summary of forthcoming work
Entwicklung, Bau und Erprobung eines automatischen pH-cycling-Systems
Creators: name: Brandt, Michael
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 1999
Subjects: Elektronische Publikation

description: Bei Remineralisations- und Reifungsstudien am Zahnschmelz sind die Dauer und Häufigkeit des Einwirkens de- und remineralisierender Substanzen wichtige Parameter, die im in vitro-Versuch nur automatisiert in entsprechenden Frequenzen über längere Zeit realisiert werden können. Das entwickelte pH-cycling-System kann bis zu 50 Zähnen fassen. Zwei verschiedene Spüllösungen und Wasser kann in den Versuchsbehälter fließen. Die Einwirkzeiten können zwischen 10 Sekunden und fünfzehn Stunden betragen. Die Reihenfolge des Einwirkens ist variierbar. Die funktionstragenden Bauteile sind Magnetventile und Vierkammermembranpumpen, welche durch eine elektronische Steuerung koordiniert werden. Unter Anwendung der Fenstertechnik wurde zur Testung des Gerätes die Erzeugung artifizieller Karies und deren Remineralisation unter variierenden Bedingungen angestrebt. Die polarisationsoptische Auswertung zeigte, daß eine Remineralisation der Karies mit dem pH-cycling-Gerät möglich ist. Eine Verdichtung oberflächlichen Zahnschmelzes nach hochfrequenter pH-cycling Behandlung ist durch vier verschiedene Imbibitionsmedien nachweisbar. Mit diesem System ist die Untersuchung von Mineralisations- und Remineralisationsvorgängen über längere Zeiträume bei variierender Einwirkung der verschiedenen Spüllösungen möglich.
description: Frequency and time of influence of different substances are important parameters in studies on posteruptive maturation of dental enamel and in de- and remineralization experiments. High frequency and short times only can realised in an automatic apparatus. The buildet pH-cycling-system can take in 50 tooth. Two different solutions and water can flow in the experimental container. They could stay ther between ten seconds and fifteen hours. The order of solutions is varyable. The pH-cycling-system consists on magnetic valves, membrane pumps and an electronical contol. The testing of the system consists on producing artificial caries and their remineralization. Fenestration technique was used. Polarized light microscopy shows that remineralization of artificial caries is possible with the pH-cycling-system. A higher density of cycled enamel is shown with four different imbibition liquid medias. The pH-cycling-system is suitable for rapid pH-cycling frequencys in studies on posteruptive maturation of dental enamel.
title: Assimilation of pseudo-tree-ring-width observations into an atmospheric general circulation model
Creators: name: Acevedo, Walter
name: Fallah, Bijan
name: Reich, Sebastian
name: Cubasch, Ulrich
Publisher: name: Universität Potsdam
Year: 2019

description: Paleoclimate data assimilation (DA) is a promising technique to systematically combine the information from climate model simulations and proxy records. Here, we investigate the assimilation of tree-ring-width (TRW) chronologies into an atmospheric global climate model using ensemble Kalman filter (EnKF) techniques and a process-based tree-growth forward model as an observation operator. Our results, within a perfect-model experiment setting, indicate that the "online DA" approach did not outperform the "off-line" one, despite its considerable additional implementation complexity. On the other hand, it was observed that the nonlinear response of tree growth to surface temperature and soil moisture does deteriorate the operation of the time-averaged EnKF methodology. Moreover, for the first time we show that this skill loss appears significantly sensitive to the structure of the growth rate function, used to represent the principle of limiting factors (PLF) within the forward model. In general, our experiments showed that the error reduction achieved by assimilating pseudo-TRW chronologies is modulated by the magnitude of the yearly internal variability in themodel. This result might help the dendrochronology community to optimize their sampling efforts.
description: Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe, 627
Polyenaria Dewailly 1950
Creators: name: Allsopp, Peter G.
name: Schoolmeesters, Paul
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Polyenaria

description: Polyenaria Dewailly, 1950
[1 species].
Type species Polyenaria ciliata Dewailly, 1950, by original designation.
description: Published as part of Allsopp, Peter G. & Schoolmeesters, Paul, 2024, All genera of the world: Subfamilies Prototroginae, Cretoscarabaeinae, Dynamopodinae, Electrorubesopsinae, Phaenomeridinae, Orphninae, Allidiostomatinae, Aclopinae, Lichniinae, Melolonthinae, Oncerinae, Podolasiinae, Sericinae, Sericoidinae (Animalia: Arthropoda: Insecta: Coleoptera: Scarabaeidae), pp. 104-175 in Megataxa 12 (1) on page 126, DOI: 10.11646/megataxa.12.1.2, http://zenodo.org/record/14984437
Additional file 2 of The circular RNA circSPARC enhances the migration and proliferation of colorectal cancer by regulating the JAK/STAT pathway
Creators: name: Wang, Jiaqi
name: Zhang, Yi
name: Song, Hu
name: Yin, Hang
name: Jiang, Tao
name: Xu, Yixin
name: Liu, Lianyu
name: Wang, Hongyu
name: Gao, Hong
name: Wang, Renhao
name: Song, Jun
Publisher: name: figshare
Year: 2021
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Pharmacology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer

description: Additional file 2: Figure S2. A. GEPIA database exhibited that SPARC is upregulated in CRC. B. Starbase database showed that CTCF has a positive correlation with SPARC in CRC. C. RT-qPCR indicated the circSPARC expressed higher in CRC cell lines (HCT116 and DLD1) than in the normal colorectal epithelium cell line (FHC). D. The effect of CTCF siRNA in CRC cells was analysed by RT-qPCR. E. The bubble diagram of RNA-seq analyzed by KEGG pathway showed that circSPARC may have correlation with JAK/STAT signal pathway. F. The quantitative analysis of related proteins expression in Fig. 4D. The result showed that both silencing and overexpression circSPARC can regulate JAK2/STAT3 signalling pathway and its downstream genes expect STAT3. *P < 0.05, **P < 0.01, ***P < 0.001 and ****P < 0.0001
Phenotypic characterization and cardiovascular outcomes of patients with familial hypercholesterolemia
Creators: name: Allard, Matthew
Publisher: name: University of British Columbia
Year: 2013

description: Background: Familial hypercholesterolemia (FH) is a common autosomal dominant disorder caused by mutations in the low-density lipoprotein (LDL) receptor, apolipoprotein B-100 gene, or proprotein convertase subtilisin/kexin type 9, resulting in very high blood cholesterol levels and premature cardiovascular disease (CVD). Hypotheses/ Objectives: 1. FH patients who have developed CVD differ from those free of CVD by specific risk factors. 2. The specific risk factors differ in FH patients who develop CVD early and those resistant to CVD 3. These risk factors risk factors differ between men and women. 4. These risk factors differ between ethnic groups. Methods: A retrospective chart review of patients in the Prevention Clinic was carried out to find individuals with “definite” FH according to the Dutch Lipid Clinic Network Criteria (DLCNC) and to determine which patients developed CVD. Cox proportional hazard regression analysis was used to assess the association of risk factors to hard cardiovascular outcomes in univariate and multivariate analyses. Results: A total of 446 patients were identified as having “definite” FH based upon the DLCNC with 116 (26%) patients having hard evidence of CVD. Male sex, smoking, family history of premature CVD, diabetes mellitus, low HDL-C and high Lp(a) proved to be significant, independent risk factors for CVD in the entire FH cohort. The same risk factors remained significant when comparing FH patients susceptible to CVD to those resistant to CVD. Of note, LDL-C and hypertension were not important risk factors for CVD in this cohort. In men, family history, diabetes and low levels of HDL-C were significant risk factors for CVD while in women smoking, diabetes mellitus, low levels of HDL-C and high Lp(a) were significant risk factors for CVD. There were minimal detectable differences in risk factors between ethnicities. Conclusion: In our ethnically diverse cohort the significant risk factors for CVD in decreasing order of importance were, male sex, diabetes, high Lp(a), smoking, family history of pre-mature CVD, and low HDL-C in both the entire group as well as in the most susceptible subgroup. Men and women differed in the impact of the risk factors on the presence of CVD.
A new technique for the transient simulation of transmission lines inclusive of skin effect
Creators: name: Condon, M.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2001
Subjects: ING-INF/01 Elettronica

description: A new approach is presented for the transient simulation of lossy transmission lines in high-speed circuits. The approach is based on developing a model for the transmission line which is structured around natural modes of oscillation unlike other transmission-line models which are based on travelling waves. The principal advantage of the new approach is that conversion of frequency-domain prototype models for the transmission lines to the time domain for use in circuit simulators is particularly straightforward and obviates the need for numerical convolution. An illustrative caseis given to confirm the efficacy of the new approach.
title: Biome changes in Asia since the mid-Holocene
title: An analysis of different transient Earth system model simulations
titleType: Subtitle
Creators: name: Dallmeyer, Anne
name: Claussen, Martin
name: Ni, Jian
name: Cao, Xianyong
name: Wang, Yongbo
name: Fischer, Nils
name: Pfeiffer, Madlene
name: Jin, Liya
name: Khon, Vyacheslav
name: Wagner, Sebastian
name: Haberkorn, Kerstin
name: Herzschuh, Ulrike
Publisher: name: Universität Potsdam
Year: 2019

description: The large variety of atmospheric circulation systems affecting the eastern Asian climate is reflected by the complex Asian vegetation distribution. Particularly in the transition zones of these circulation systems, vegetation is supposed to be very sensitive to climate change. Since proxy records are scarce, hitherto a mechanistic understanding of the past spatio-temporal climate-vegetation relationship is lacking. To assess the Holocene vegetation change and to obtain an ensemble of potential mid-Holocene biome distributions for eastern Asia, we forced the diagnostic biome model BIOME4 with climate anomalies of different transient Holocene climate simulations performed in coupled atmosphere-ocean(-vegetation) models. The simulated biome changes are compared with pollen-based biome records for different key regions.

In all simulations, substantial biome shifts during the last 6000 years are confined to the high northern latitudes and the monsoon-westerly wind transition zone, but the temporal evolution and amplitude of change strongly depend on the climate forcing. Large parts of the southern tundra are replaced by taiga during the mid-Holocene due to a warmer growing season and the boreal treeline in northern Asia is shifted northward by approx. 4 degrees in the ensemble mean, ranging from 1.5 to 6 degrees in the individual simulations, respectively. This simulated treeline shift is in agreement with pollen-based reconstructions from northern Siberia. The desert fraction in the transition zone is reduced by 21% during the mid-Holocene compared to pre-industrial due to enhanced precipitation. The desert-steppe margin is shifted westward by 5 degrees (1-9 degrees in the individual simulations). The forest biomes are expanded north-westward by 2 degrees, ranging from 0 to 4 degrees in the single simulations. These results corroborate pollen-based reconstructions indicating an extended forest area in north-central China during the mid-Holocene. According to the model, the forest-to-non-forest and steppe-to-desert changes in the climate transition zones are spatially not uniform and not linear since the mid-Holocene.
description: Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe, 643
Teaching Critical Thinking Within an Institutionalised Problem Based Learning Paradigm - Quite a Challenge
Creators: name: Camacho, Heilyn Nunez
name: Christiansen, Ellen
Publisher: name: Journal of Problem Based Learning in Higher Education
Year: 2018

description: This paper reviews the design of a ‘Professional Inquiry’ course taught for four years to Information Studies students at Aalborg University, Denmark, within the pedagogical paradigm of Problem Based Learning (PBL). The course teaches students how to formulate research questions and scientific problems, and determine what is worthwhile knowing within the field of informatics. While no contradiction was foreseen at the outset of the study, the following dilemmas surfaced over the four years, putting the development of critical reflection skills at risk: (1) while project work revolves around real-world problem-solving, critical thinking requires inquiries into what we already know, the ways we know,and why we know and not know, therefore, it implies reformulating the problem several times; (2) making critical thinking the subject of a course might prevent students from conceptualising it as part of all scholarly thinking; (3) time needed to think critically is eclipsed by other demands on the students’ study time; and (4) the hours allocated for the course make it difficult for teachers to introduce the curriculum and meet the students where they are.
description: Journal of Problem Based Learning in Higher Education, Vol. 6 No. 2 (2018)
Hybrid Dyadic -MPIE Integral Equation Analysis of Passive Microwave Devices in Layered Media
Creators: name: Vrancken, Mark
name: Vandenbosch, Guy A. E.
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2001
Subjects: ING-INF/01 Elettronica

description: Integral equation modeling of electromagnetic radiation and interference phenomena in planar circuits and antennas offers exact solutions usually at the cost of excessive computation time, especially when arbitrary 3D conducting surfaces are involved. However, we will restrict the geometry to the 2.5D case : this assumes that only horizontal current sheets parallel to the layer structure and vertical conducting surfaces normal to the dielectric layers are allowed. This case does nevertheless cover most of the practical problems. The limitation to the 2.5D case allows to perform more analytical work. A hybrid dyadic-mixed potential representation of the field is proposed as a viable alternative to the traditional ‘total’ mixed potential representations. Severalexamples show the validity of the proposed approach.
title: Picturing and modeling catchments by representative hillslopes
Creators: name: Loritz, Ralf
name: Hassler, Sibylle K.
name: Jackisch, Conrad
name: Allroggen, Niklas
name: van Schaik, Loes
name: Wienhöfer, Jan
name: Zehe, Erwin
Publisher: name: Universität Potsdam
Year: 2019

description: This study explores the suitability of a single hillslope as a parsimonious representation of a catchment in a physically based model. We test this hypothesis by picturing two distinctly different catchments in perceptual models and translating these pictures into parametric setups of 2-D physically based hillslope models. The model parametrizations are based on a comprehensive field data set, expert knowledge and process-based reasoning. Evaluation against streamflow data highlights that both models predicted the annual pattern of streamflow generation as well as the hydrographs acceptably. However, a look beyond performance measures revealed deficiencies in streamflow simulations during the summer season and during individual rainfall-runoff events as well as a mismatch between observed and simulated soil water dynamics. Some of these shortcomings can be related to our perception of the systems and to the chosen hydrological model, while others point to limitations of the representative hillslope concept itself. Nevertheless, our results confirm that representative hillslope models are a suitable tool to assess the importance of different data sources as well as to challenge our perception of the dominant hydrological processes we want to represent therein. Consequently, these models are a promising step forward in the search for the optimal representation of catchments in physically based models.
description: Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe, 635
title: Non-linear intensification of Sahel rainfall as a possible dynamic response to future warming
Creators: name: Schewe, Jacob
name: Levermann, Anders
Publisher: name: Universität Potsdam
Year: 2019

description: Projections of the response of Sahel rainfall to future global warming diverge significantly. Meanwhile, paleoclimatic records suggest that Sahel rainfall is capable of abrupt transitions in response to gradual forcing. Here we present climate modeling evidence for the possibility of an abrupt intensification of Sahel rainfall under future climate change. Analyzing 30 coupled global climate model simulations, we identify seven models where central Sahel rainfall increases by 40 to 300% over the 21st century, owing to a northward expansion of the West African monsoon domain. Rainfall in these models is non-linearly related to sea surface temperature (SST) in the tropical Atlantic and Mediterranean moisture source regions, intensifying abruptly beyond a certain SST warming level. We argue that this behavior is consistent with a self-amplifying dynamic-thermodynamical feedback, implying that the gradual increase in oceanic moisture availability under warming could trigger a sudden intensification of monsoon rainfall far inland of today's core monsoon region.
description: Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe, 630
How does organisational culture influence the process of implementing PBL?
Creators: name: Camacho, Heilyn
name: Coto, Mayela
name: Mølbjerg Jørgensen, Kenneth
Publisher: name: Journal of Problem Based Learning in Higher Education
Year: 2018

description: With the growing demand to use pedagogical approaches to foster 21st-century skills such as problem solving, creativity, critical thinking, collaborative learning and innovation, problem-based learning (PBL) has been the pedagogical approach chosen by many educational institutions. However, moving from traditional teaching to PBL demands an organisational change. Although organisational culture is widely recognised as a critical success factor in the implementation of PBL, the literature provides very limited insight into how it influences the implementation process of PBL. This paper provides an empirical analysis of the influence of organisational culture on PBL implementation. The research is based on the analysis of two groups that have been involved in implementing PBL for several years. A focus group interview was conducted with each group to identify traits of organizational culture. The Organizational Culture Assessment Instrument (OCAI) was applied to identify the dominant type of culture in each group. The findings indicated that some cultural traits better supported the implementation of PBL. In particular, traits of clan culture were identified to be more aligned with PBL principles. In addition, understanding the current culture of a given organisation enables people to be more aware of the level of change that is required to implement PBL in their organisations.
description: Journal of Problem Based Learning in Higher Education, Vol. 6 No. 2 (2018)
A Rosetta Stone Relating Conventions In Photo-Meson Partial Wave Analyses
Creators: name: Sandorfi, A. M.
name: Dey, B.
name: Sarantsev, A.
name: Tiator, L.
name: Workman, R.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: A new generation of complete experiments in pseudoscalar meson photo-production is being pursued at several laboratories. While new data are emerging, there is some confusion regarding definitions of asymmetries and the conventions used in partial wave analyses (PWA). We present expressions for constructing asymmetries as coordinate-system independent ratios of cross sections, along with the names used for these ratios by different PWA groups. (This update reflects a recent change in the definition of an asymmetry as used by one group.)
description: v2: This update reflects a recent change in the definition of an asymmetry as used by one PWA group -see Table 1. v1: 4 pages. Contribution to the proceedings of the 8th International Workshop on the Physics of Excited Nucleons (NSTAR2011), Newport News, VA, USA, May 17-20, 2011
Polyphylla Dejean 1821
Creators: name: Allsopp, Peter G.
name: Schoolmeesters, Paul
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Polyphylla

description: Polyphylla Dejean, 1821
[82 species and 11 additional subspecies].
Type species Scarabaeus fullo Linnaeus, 1758, by subsequent designation of Lucas (1920).
Macronoxia Crotch, 1873.
Type species Scarabaeus occidentalis Linnaeus,1767,by subsequent designation of Evans (2003).
Synonymy by Austin (1880).
Polylamina Hardy, 1974.
Type species Polyphylla pubescens Cartwright, 1939, by original designation.
Synonymy by Coca-Abia (2000).
Polyphylla (Granida) Motschulsky, 1861, as Granida.
Type species Granida albolineata Motschulsky, 1861, by monotypy.
Status revised to Polyphylla (Granida) by Nomura & Kobayashi (1979).
Polyphylla (Grananoxia) Brenske, 1890, as Grananoxia.
Type species Granida annamensis Fleutiaux, 1887, by monotypy.
Status revised to Polyphylla (Grananoxia) by Nomura & Kobayashi (1979).
Note: Reitter (1902) incorrectly spelt Grananoxia as “ Granoxia ”.
Polyphylla (Centrasiobia) Semenov, 1902.
Type species Polyphylla (Centrasiobia) schestakowi Semenov, 1900, by original designation.
Polyphylla (Gynexophylla) Medvedev, 1951.
Type species Polyphylla laticollis Lewis, 1887, by original designation.
Polyphylla (Mesopolyphylla) Medvedev, 1951.
Type species Melolontha irrorata Gebler, 1841, by original designation.
Polyphylla (Xerasiobia) Medvedev, 1951.
Type species Scarabaeus albus Pallas, 1773, by original designation.
description: Published as part of Allsopp, Peter G. & Schoolmeesters, Paul, 2024, All genera of the world: Subfamilies Prototroginae, Cretoscarabaeinae, Dynamopodinae, Electrorubesopsinae, Phaenomeridinae, Orphninae, Allidiostomatinae, Aclopinae, Lichniinae, Melolonthinae, Oncerinae, Podolasiinae, Sericinae, Sericoidinae (Animalia: Arthropoda: Insecta: Coleoptera: Scarabaeidae), pp. 104-175 in Megataxa 12 (1) on page 126, DOI: 10.11646/megataxa.12.1.2, http://zenodo.org/record/14984437
title: Improving calibration and validation of cosmic-ray neutron sensors in the light of spatial sensitivity
Creators: name: Schrön, Martin
name: Köhli, Markus
name: Scheiffele, Lena
name: Iwema, Joost
name: Bogena, Heye R.
name: Lv, Ling
name: Martini, Edoardo
name: Baroni, Gabriele
name: Rosolem, Rafael
name: Weimar, Jannis
name: Mai, Juliane
name: Cuntz, Matthias
name: Rebmann, Corinna
name: Oswald, Sascha E.
name: Dietrich, Peter
name: Schmidt, Ulrich
name: Zacharias, Steffen
Publisher: name: Universität Potsdam
Year: 2019

description: In the last few years the method of cosmic-ray neutron sensing (CRNS) has gained popularity among hydrologists, physicists, and land-surface modelers. The sensor provides continuous soil moisture data, averaged over several hectares and tens of decimeters in depth. However, the signal still may contain unidentified features of hydrological processes, and many calibration datasets are often required in order to find reliable relations between neutron intensity and water dynamics. Recent insights into environmental neutrons accurately described the spatial sensitivity of the sensor and thus allowed one to quantify the contribution of individual sample locations to the CRNS signal. Consequently, data points of calibration and validation datasets are suggested to be averaged using a more physically based weighting approach. In this work, a revised sensitivity function is used to calculate weighted averages of point data. The function is different from the simple exponential convention by the extraordinary sensitivity to the first few meters around the probe, and by dependencies on air pressure, air humidity, soil moisture, and vegetation. The approach is extensively tested at six distinct monitoring sites: two sites with multiple calibration datasets and four sites with continuous time series datasets. In all cases, the revised averaging method improved the performance of the CRNS products. The revised approach further helped to reveal hidden hydrological processes which otherwise remained unexplained in the data or were lost in the process of overcalibration. The presented weighting approach increases the overall accuracy of CRNS products and will have an impact on all their applications in agriculture, hydrology, and modeling.
description: Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe, 636
title: Freiwillige Gemeindefusionen im Land Brandenburg
title: Eine Netzwerkanalyse der Akteurskonstellationen anhand der Modellregion Oderlandregion
titleType: Subtitle
Creators: name: Techert, Kilian
Publisher: name: Universitätsverlag Potsdam
Year: 2019

description: Das kommunale System des Landes Brandenburg wurde seit der Deutschen Wiedervereinigung durch eine Vielzahl von territorialen und funktionalen Verwaltungsreformen verändert. 
Das hier vorliegende Arbeitsheft des kommunalwissenschaftlichen Instituts der Universität Potsdam stellt diese zurückliegenden Reformen sowie den momentanen Verwaltungsaufbau und die Bevölkerungsstruktur des Landes Brandenburg dar (Stand: 1.Juli 2018). Die demographische Entwicklung war und ist dabei ein wichtiger Reformfaktor. Zudem werden verfassungsrechtliche Grundlagen für kommunale Reformen im Land Brandenburg erörtert. 

Anschließend werden die möglichen Auswirkungen des Gesetzes zur Weiterentwicklung der gemeindlichen Ebene vom 15.10.2018 für zukünftige Reformen des Brandenburgischen Kommunalsystems anhand einer Fallstudie aus der Modellregion Oderlandregion diskutiert. Dieses Gesetz stellt einen Wendepunkt in der bisherigen Reformstrategie des Landes Brandenburg dar, da Reformen erstmals auf freiwilliger Basis durchgeführt werden sollen.
Durch eine Netzwerkanalyse wird in der Fallstudie insbesondere auf Akteurskonstellationen im Reformprozess eingegangen. Dabei zeigt sich, dass die Hauptverwaltungsbeamten reformwilliger Gemeinden großen Einfluss auf Entscheidungsprozesse nehmen.
description: KWI-Arbeitshefte, 25
A unique pure mechanical system revealing dipole repulsion
Creators: name: Ee, June-Haak
name: Lee, Jungil
Publisher: name: arXiv
Year: 2012
Subjects: subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: We study multiple elastic collisions of a block and a ball against a rigid wall in one dimension. The complete trajectory of the block is solved as an analytic function of time. Near the turning point of the block the force carried by the ball is proportional to 1/x^3, where x is the distance between the wall and the block, in the limit that the block is sufficiently heavier than the ball. This is a unique pure mechanical system that reveals dipole-like repulsion.
description: 20 pages, 3 figures, 1 table, version published in Am. J. Phys
title: Cord blood Lysophosphatidylcholine 16:1 is positively associated with birth weight
Creators: name: Lu, Yong-Ping
name: Reichetzeder, Christoph
name: Prehn, Cornelia
name: Yin, Liang-Hong
name: Yun, Chen
name: Zeng, Shufei
name: Chu, Chang
name: Adamski, Jerzy
name: Hocher, Berthold
Publisher: name: Universität Potsdam
Year: 2019

description: Background/Aims: Impaired birth outcomes, like low birth weight, have consistently been associated with increased disease susceptibility to hypertension in later life. Alterations in the maternal or fetal metabolism might impact on fetal growth and influence birth outcomes. Discerning associations between the maternal and fetal metabolome and surrogate parameters of fetal growth could give new insight into the complex relationship between intrauterine conditions, birth outcomes, and later life disease susceptibility. Methods: Using flow injection tandem mass spectrometry, targeted metabolomics was performed in serum samples obtained from 226 mother/child pairs at delivery. Associations between neonatal birth weight and concentrations of 163 maternal and fetal metabolites were analyzed. Results: After FDR adjustment using the Benjamini-Hochberg procedure lysophosphatidylcholines (LPC) 14:0, 16:1, and 18:1 were strongly positively correlated with birth weight. In a stepwise linear regression model corrected for established confounding factors of birth weight, LPC 16: 1 showed the strongest independent association with birth weight (CI: 93.63 - 168.94; P = 6.94x10(-11)). The association with birth weight was stronger than classical confounding factors such as offspring sex (CI: - 258.81- -61.32; P = 0.002) and maternal smoking during pregnancy (CI: -298.74 - -29.51; P = 0.017). Conclusions: After correction for multiple testing and adjustment for potential confounders, LPC 16:1 showed a very strong and independent association with birth weight. The underlying molecular mechanisms linking fetal LPCs with birth weight need to be addressed in future studies. (c) 2018 The Author(s) Published by S. Karger AG, Basel
description: Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe, 631
A 24.6-GHz MMIC HBT Triple-Push Oscillator
Creators: name: Tang, Yu-Lung
name: Wang, Huei
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2001
Subjects: ING-INF/01 Elettronica

description: A triple-push oscillator has been implemented using MMIC approach. This 24.6-GHz MMIC HBT triple-push oscillator was fabricated using InGaP/GaAs HBT MMIC technology. The principle of a trip e-push oscillator is that three identical fundamental oscillators are combined via microstrip-lines and operated in odd-mode oscillation to provide 120 o phase difference among three fundamental oscillators. As a consequence, the third harmonic signals of this MMIC triple-push oscillator chip were in-phase added to provide an output signal of –14.8 dBm at 24.6 GHz with more than 20-dB fundamental and the second harmonic rejection.