cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Comparing the Cold-Cranking Performance of Lead-Acid and Lithium Iron Phosphate Batteries at Temperatures below 0 °C
Creators: name: Bauknecht, Sophia
name: Wätzold, Florian
name: Schlösser, Anton
name: Kowal, Julia
Publisher: name: Technische Universität Berlin
Year: 2023
Subjects: subject: 600 Technik, Medizin, angewandte Wissenschaften::620 Ingenieurwissenschaften::620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
subject: low temperature
subject: negative temperature
subject: lead–acid battery
subject: Pb
subject: LAB
subject: lithium iron phosphate battery
subject: LiFePO4
subject: LFP
subject: starter battery
subject: performance
subject: cold-cranking
subject: capacity

description: Six test cells, two lead–acid batteries (LABs), and four lithium iron phosphate (LFP) batteries have been tested regarding their capacity at various temperatures (25 °C, 0 °C, and −18 °C) and regarding their cold crank capability at low temperatures (0 °C, −10 °C, −18 °C, and −30 °C). During the capacity test, the LFP batteries have a higher voltage level at all temperatures than LABs, which results in a higher power and energy output. Moreover, LFP batteries have a lower capacity decline and a lower energy decline for decreasing temperature. Regarding the cold-cranking test definition, the LABs passed the test at 0 °C, −10 °C, and −18 °C, but not at −30 °C. The LFP batteries passed the test at 0 °C and −10 °C. At −18 °C, only two of the four LFP batteries passed, while all LFP batteries failed the test at −30 °C. For comparability between technologies, it is suggested to redefine the requirements of the standard test in terms of power or energy. With this redefinition, the LFP battery can generate comparable cold-cranking results till −18 °C.
“You Are Not Alone”–Opportunities and Challenges for University Students’ Collaborative Engagement When Dealing With Online Information About COVID-19
Creators: name: Mayweg-Paus, Elisabeth
name: Zimmermann, Maria
name: Lefke, Claudia
Publisher: name: Humboldt-Universität zu Berlin
Year: 2021
Subjects: subject: online engagement with scientific information
subject: collaborative learning
subject: information about COVID- 19
subject: cognitive and emotional engagement with online information
subject: online support seeking
subject: information seeking abilities
subject: 150 Psychologie

description: In view of the COVID-19 pandemic, students had to cope with the challenging situation of handling a vast amount of potentially conflicting online information while staying informed. Reading conflicting scientific information has been shown to require cognitive effort for one to integrate it successfully, but reading such information during a crisis–such as the COVID-19 pandemic–may cause additional emotional stress, as students also had to cope with critical aspects of the pandemic (e.g., physical distancing and uncertainty). Different studies have indicated that in crises, stress can be relieved by seeking online social support (as a coping strategy). Similarly, working together (as collaborative learning) can also help people more critically discuss information on a cognitive level. Based on the approaches of online collaborative learning and online social support seeking, we were interested in whether an individual vs. collaborative communication setting would lead to any differences in students’ cognitive as well as emotional engagement with conflicting information about COVID-19. In a 2 × 2 mixed design, N = 109 education science students were exposed to two conflicting texts regarding COVID-19 testing that contained current scientific information. The online experiment was conducted in Germany in April 2020, which was the beginning of lockdown in that country. After reading the two texts, participants were asked to reflect on their engagement with the conflicting information either individually (individual group, n = 49) or via chat collaboratively (collaboration group, n = 60 in 30 dyads). With respect to participants’ written reflections (content-analyzed regarding cognitive as well as emotional engagement), participants in the collaborative group, compared to those in the individual group, more often discussed the pandemic in general and less often engaged emotionally when discussing the evidence from texts. All participants reported higher perceived information overload, lower self-efficacy in sourcing information about COVID-19, and higher active coping strategies after the reflection task compared to before reading the information, with no significant differences between the collaborative and individual groups. We discuss these findings regarding any opportunities and challenges that arise in online collaboration between students for cognitive and emotional engagement when handling conflicting information about COVID-19.
Effective Field Theory and Integrability in Two-Dimensional Mott Transition
Creators: name: Bottesi, Federico L.
name: Zemba, Guillermo R.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the Mott transition in a two-dimensional lattice spinless fermion model with nearest neighbors density-density interactions. By means of a two-dimensional Jordan-Wigner transformation, the model is mapped onto the lattice XXZ spin model, which is shown to possess a Quantum Group symmetry as a consequence of a recently found solution of the Zamolodchikov Tetrahedron Equation. A projection (from three to two space-time dimensions) property of the solution is used to identify the symmetry of the model at the Mott critical point as U_q(sl(2))xU_q(sl(2)), with deformation parameter q=-1. Based on this result, the low-energy Effective Field theory for the model is obtained and shown to be a lattice double Chern-Simons theory with coupling constant k=1 (with the standard normalization). By further employing the Effective Filed Theory methods, we show that the Mott transition that arises is of topological nature, with vortices in an antiferromagnetic array and matter currents characterized by a d-density wave order parameter. We also analyze the behavior of the system upon weak coupling, and conclude that it undergoes a quantum gas-liquid transition which belongs to the Ising universality class.
description: 36 pages
Graphene-Oxide-Grafted Natural Phosphate Support as a Low-Cost Ceramic Membrane for the Removal of Anionic Dyes from Simulated Textile Effluent
Creators: name: Bensalah, Hiba
name: Derouich, Ghizlane
name: Wang, Xifan
name: Alami Younssi, Saad
name: Bekheet, Maged F.
Publisher: name: Technische Universität Berlin
Year: 2023
Subjects: subject: 500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie::570 Biowissenschaften; Biologie
subject: graphene oxide
subject: low-cost ceramic support
subject: silane grafting
subject: composite membrane
subject: dye removal

description: A novel natural phosphate/graphene oxide (GO) composite membrane was successfully fabricated using two steps: (i) silane chemical grafting and (ii) dip-coating of a GO solution. First, the low-cost disk ceramic support used in this work was fabricated out of Moroccan natural phosphate, and its properties were thoroughly characterized. The optimized ceramic support was sintered at 1100 °C following a specific heat treatment based on thermogravimetric analysis (TGA) and differential thermal analysis (DTA); it exhibited a permeability of 953.33 L/h·m2·bar, a porosity of 24.55%, an average pore size of 2.45 μm and a flexural strength of 22.46 MPa. The morphology analysis using SEM showed that the GO layer was homogenously coated on the crack-free Moroccan phosphate support with a thickness of 2.8 μm. The Fourier transform infrared spectrometer (FT-IR) results showed that modification with silane could improve the interfacial adhesion between the GO membrane and the ceramic support. After coating with GO on the surface, the water permeability was reduced to 31.93 L/h·m2·bar (i.e., by a factor of 142). The prepared GO/ceramic composite membrane exhibited good efficiency in the rejection of a toxic azo dye Congo Red (CR) (95.2%) and for a simulated dye effluent (87.6%) under industrial conditions. The multi-cycle filtration tests showed that the rejection rate of CR dye remained almost the same for four cycles. Finally, the flux recovery was also studied. After 1 h of water cleaning, the permeate flux recovered, increased significantly, and then remained stable.
The Performance of Carbonate-Modified Nonionic Surfactants in Microplastic Flotation
Creators: name: Brüggemann, Daniel
name: Shojamejer, Tahereh
name: Tupinamba Lima, Michelle
name: Zukova, Dzenna
name: Marschall, Rahel
name: Schomäcker, Reinhard
Publisher: name: Technische Universität Berlin
Year: 2023
Subjects: subject: 500 Naturwissenschaften und Mathematik::540 Chemie::540 Chemie und zugeordnete Wissenschaften
subject: surface tension
subject: adsorption
subject: foam
subject: foam stability
subject: flotation
subject: carbonate-modified nonionic surfactants

description: For a group of nonionic surfactants with polar head groups synthesized by the copolymerization of ethylene oxide and carbon dioxide, the potential for their application in the foam flotation of microplastic particles was investigated. Their performance was compared to conventional that of nonionic surfactants and correlated with their adsorption behavior at the water–air surface through the maximum-bubble-pressure technique. The carbonate content of the surfactant head groups increased the biodegradability of the surfactants and affected their foaming properties and their performance in the flotation process. Since the inserted carbonate units increased the hydrophilicity of the whole surfactant but decreased the polarity of their headgroups, the number of carbonate units can be considered as an independent tuning parameter for adjusting these surfactants to a particular application. With this feature, the countercurrent trends of the two most important performance indicators, namely the removal rate and enrichment factor, can be resolved.
title: Ð ÐµÐºÐ¾Ð½ÑÑÑÑÐºÑÐ¸Ñ ÐÐ¡ 35/10 ÐºÐ Ñ Ð·Ð°Ð¼ÐµÐ½Ð¾Ð¹ ÑÑÐ°Ð½ÑÑÐ¾ÑÐ¼Ð°ÑÐ¾ÑÐ¾Ð²
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð±Ð°ÐºÐ°Ð»Ð°Ð²ÑÐ°
titleType: Subtitle
title: Reconstruction of substation 35/10 kV with replacement of transformers
Creators: name: ÐÑÑÐ¾Ð², ÐÐ°ÑÐ¸Ð»Ð¸Ð¹
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2020
Subjects: Ð¿Ð¾Ð´ÑÑÐ°Ð½ÑÐ¸Ñ
Ð¼Ð¾ÑÐ½Ð¾ÑÑÑ
ÑÑÐ°Ð½ÑÑÐ¾ÑÐ¼Ð°ÑÐ¾Ñ
ÐºÐ¾ÑÐ¾ÑÐºÐ¾Ðµ Ð·Ð°Ð¼ÑÐºÐ°Ð½Ð¸Ðµ
Ð²ÑÐºÐ»ÑÑÐ°ÑÐµÐ»Ñ
ÑÐµÐºÐ¾Ð½ÑÑÑÑÐºÑÐ¸Ñ
Ð¸Ð·Ð¼ÐµÑÐ¸ÑÐµÐ»ÑÐ½ÑÐ¹ ÑÑÐ°Ð½ÑÑÐ¾ÑÐ¼Ð°ÑÐ¾Ñ
substation
power
transformer
short circuit
switch
reconstruction
measuring transformer

description: Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð¿ÑÐµÐ´ÑÑÐ°Ð²Ð»ÐµÐ½ Ð¿ÑÐ¾ÐµÐºÑ ÑÐµÐºÐ¾Ð½ÑÑÑÑÐºÑÐ¸Ð¸ ÐÐ¡ 35/10 ÐºÐ â 714 Â«ÐÐµÑÑÐºÐ¾ÑÐµÐ»ÑÑÐºÐ°ÑÂ». ÐÐ°Ð´Ð°ÑÐ¸, ÐºÐ¾ÑÐ¾ÑÑÐµ ÑÐµÑÐ°Ð»Ð¸ÑÑ Ð² ÑÐ¾Ð´Ðµ Ð¿ÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ: 1. ÐÐ·ÑÑÐµÐ½Ð¸Ðµ Ð¾ÑÐ¾Ð±ÐµÐ½Ð½Ð¾ÑÑÐµÐ¹ Ð¼ÐµÑÑÐ¾ÑÐ°ÑÐ¿Ð¾Ð»Ð¾Ð¶ÐµÐ½Ð¸Ñ Ð¿Ð¾Ð´ÑÑÐ°Ð½ÑÐ¸Ð¸. 2. Ð Ð°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ð¸Ðµ Ð¸Ð¼ÐµÑÑÐµÐ³Ð¾ÑÑ ÑÐ¸Ð»Ð¾Ð²Ð¾Ð³Ð¾ Ð¸ ÐºÐ¾Ð¼Ð¼ÑÑÐ°ÑÐ¸Ð¾Ð½Ð½Ð¾Ðµ Ð¾Ð±Ð¾-ÑÑÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ. 3. ÐÐ·ÑÑÐµÐ½Ð¸Ðµ ÑÑÑÐ¾ÑÐ½ÑÑ Ð³ÑÐ°ÑÐ¸ÐºÐ¾Ð² Ð½Ð°Ð³ÑÑÐ·ÐºÐ¸ Ð¿Ð¾Ð´ÑÑÐ°Ð½ÑÐ¸Ð¸. 4. ÐÑÐ±Ð¾Ñ ÑÑÐµÐ¼Ñ Ð Ð£ 35 ÐºÐ Ð¸ Ð Ð£ 10 ÐÐ². 5. ÐÑÐ±Ð¾Ñ Ð½Ð¾Ð²Ð¾Ð³Ð¾ Ð¾Ð±Ð¾ÑÑÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð´Ð»Ñ Ð¿Ð¾Ð´ÑÑÐ°Ð½ÑÐ¸Ð¸. ÐÑÐ»Ð° Ð¾Ð±Ð¾ÑÐ½Ð¾Ð²Ð°Ð½Ð° Ð½ÐµÐ¾Ð±ÑÐ¾Ð´Ð¸Ð¼Ð¾ÑÑÑ ÑÐ²ÐµÐ»Ð¸ÑÐµÐ½Ð¸Ñ Ð¼Ð¾ÑÐ½Ð¾ÑÑÐ¸ Ð¿Ð¾Ð´ÑÑÐ°Ð½ÑÐ¸Ð¸ Ð´Ð»Ñ Ð¿Ð¾Ð´ÐºÐ»ÑÑÐµÐ½Ð¸Ñ Ð½Ð¾Ð²ÑÑ Ð¿Ð¾ÑÑÐµÐ±Ð¸ÑÐµÐ»ÐµÐ¹ Ñ ÑÑÐµÑÐ¾Ð¼ Ð´Ð°Ð»ÑÐ½ÐµÐ¹ÑÐ¸Ñ Ð¿ÐµÑÑÐ¿ÐµÐºÑÐ¸Ð² ÑÐ°Ð·Ð²Ð¸ÑÐ¸Ñ ÑÐ°Ð¹Ð¾Ð½Ð° Ð³Ð´Ðµ Ð½Ð°ÑÐ¾Ð´Ð¸ÑÑÑ Ð¿Ð¾Ð´ÑÑÐ°Ð½ÑÐ¸Ñ. Ð ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐµ ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ¸ Ð¿ÑÐ¾ÐµÐºÑÐ° Ð´Ð»Ñ Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð¸Ñ ÑÐµÐºÐ¾Ð½ÑÑÑÑÐºÑÐ¸Ð¸ Ð¿Ð¾ÑÐ²Ð¸Ð»Ð°ÑÑ Ð½ÐµÐ¾Ð±ÑÐ¾Ð´Ð¸Ð¼Ð¾ÑÑÑ Ð·Ð°Ð¼ÐµÐ½Ñ ÑÐ¸Ð»Ð¾Ð²ÑÑ ÑÑÐ°Ð½ÑÑÐ¾ÑÐ¼Ð°ÑÐ¾ÑÐ¾Ð² Ð½Ð° Ð±Ð¾Ð»ÑÑÑÑ Ð¼Ð¾ÑÐ½Ð¾ÑÑÑ Ð¸ Ð½Ð° Ð¾ÑÐ½Ð¾Ð²Ðµ ÑÑÐ¾Ð³Ð¾ Ð²ÑÐ±ÑÐ°ÑÑ Ð½Ð¾Ð²Ð¾Ðµ Ð¾Ð±Ð¾ÑÑÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ: ÐºÐ¾Ð¼Ð¼ÑÑÐ°ÑÐ¸Ð¾Ð½Ð½ÑÐµ Ð°Ð¿Ð¿Ð°ÑÐ°ÑÑ, Ð¸Ð·Ð¼ÐµÑÐ¸ÑÐµÐ»ÑÐ½ÑÐµ ÑÑÐ°Ð½ÑÑÐ¾ÑÐ¼Ð°ÑÐ¾ÑÑ, ÑÑÐ°Ð½ÑÑÐ¾ÑÐ¼Ð°ÑÐ¾ÑÑ ÑÐ¾Ð±ÑÑÐ²ÐµÐ½Ð½ÑÑ Ð½ÑÐ¶Ð´ Ð¸ Ð´Ñ.
description: This paper presents the project of reconstruction of 35/10 kV substation â 714 "Detskoselskaya". Tasks that were solved during the design process: 1. Study of the location of the substation. 2. Review of existing power and switching equipment. 3. Study of the daily load schedules of the substation. 4. Selection of the 35 kV and 10 KV RC circuits. 5. Selection of new equipment for the substation. The need to increase the power of the substation to connect new consumers was justified, taking into account the future development prospects of the area where the substation is located. As a result of the development of the project for reconstruction, it became necessary to replace power transformers with high power and on the basis of this choose new equipment: switching devices, measuring transformers, transformers for their own needs, etc.
Production of Modified Nucleosides in a Continuous Enzyme Membrane Reactor
Creators: name: Thiele, Isabel
name: Yehia, Heba
name: Krausch, Niels
name: Birkholz, Mario
name: Cruz Bournazou, Mariano Nicolas
name: Sitanggang, Azis Boing
name: Kraume, Matthias
name: Neubauer, Peter
name: Kurreck, Anke
Publisher: name: Technische Universität Berlin
Year: 2023
Subjects: subject: 500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie::570 Biowissenschaften; Biologie
subject: continuous enzyme membrane reactor
subject: halogenated nucleosides
subject: nucleoside analogues
subject: PID controller
subject: purine nucleoside phosphorylase
subject: pyrimidine nucleoside phosphorylase
subject: Raspberry Pi
subject: thermophilic enzyme
subject: transglycosylation

description: Nucleoside analogues are important compounds for the treatment of viral infections or cancers. While (chemo-)enzymatic synthesis is a valuable alternative to traditional chemical methods, the feasibility of such processes is lowered by the high production cost of the biocatalyst. As continuous enzyme membrane reactors (EMR) allow the use of biocatalysts until their full inactivation, they offer a valuable alternative to batch enzymatic reactions with freely dissolved enzymes. In EMRs, the enzymes are retained in the reactor by a suitable membrane. Immobilization on carrier materials, and the associated losses in enzyme activity, can thus be avoided. Therefore, we validated the applicability of EMRs for the synthesis of natural and dihalogenated nucleosides, using one-pot transglycosylation reactions. Over a period of 55 days, 2′-deoxyadenosine was produced continuously, with a product yield >90%. The dihalogenated nucleoside analogues 2,6-dichloropurine-2′-deoxyribonucleoside and 6-chloro-2-fluoro-2′-deoxyribonucleoside were also produced, with high conversion, but for shorter operation times, of 14 and 5.5 days, respectively. The EMR performed with specific productivities comparable to batch reactions. However, in the EMR, 220, 40, and 9 times more product per enzymatic unit was produced, for 2′-deoxyadenosine, 2,6-dichloropurine-2′-deoxyribonucleoside, and 6-chloro-2-fluoro-2′-deoxyribonucleoside, respectively. The application of the EMR using freely dissolved enzymes, facilitates a continuous process with integrated biocatalyst separation, which reduces the overall cost of the biocatalyst and enhances the downstream processing of nucleoside production.
Atom-dimer and dimer-dimer scattering in fermionic mixtures near a narrow Feshbach resonance
Creators: name: Levinsen, J.
name: Petrov, D. S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We develop a diagrammatic approach for solving few-body problems in heteronuclear fermionic mixtures near a narrow interspecies Feshbach resonance. We calculate s-, p-, and d-wave phaseshifts for the scattering of an atom by a weakly-bound dimer. The fermionic statistics of atoms and the composite nature of the dimer lead to a strong angular momentum dependence of the atom-dimer interaction, which manifests itself in a peculiar interference of the scattered s- and p-waves. This effect strengthens with the mass ratio and is remarkably pronounced in 40K-(40K-6Li) atom-dimer collisions. We calculate the scattering length for two dimers formed near a narrow interspecies resonance. Finally, we discuss the collisional relaxation of the dimers to deeply bound states and evaluate the corresponding rate constant as a function of the detuning and collision energy.
description: 16 pages, 21 figures. Submitted to EPJD, EuroQUAM special issue "Cold Quantum Matter - Achievements and Prospects"
Circulant states with vanishing quantum discord
Creators: name: Bylicka, Bogna
name: Chruściński, Dariusz
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We analyze a class of 2-qudit circulant states. They define generalization of well known 2-qubit X-states. We formula the necessary and sufficient criteria for vanishing quantum discord. We illustrate our analysis by an important subclass of circulant states -- so called Bell diagonal states.
description: 8 pages
Opere di premunizione lungo il riale Guasta a Bellinzona
Creators: name: Saldarini, Mattia
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2022

description: L’obiettivo è quello di progettare una o più opere di premunizione per ridurre il rischio derivante dal pericolo naturale di colata detritica lungo il riale Guasta.
On using the CMD morphology of M67 to test solar abundances
Creators: name: Magic, Zazralt
name: Serenelli, Aldo
name: Weiss, Achim
name: Chaboyer, Brian
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The open cluster M67 has solar metallicity and an age of about 4Gyr. The turn-off mass is close to the minimum mass for which solar metallicity stars develop a convective core during main sequence evolution as a result of the development of hydrogen burning through the CNO-cycle. The morphology of the color-magnitude-diagram (CMD) of M67 around the turn-off shows a clear hook-like feature, direct sign that stars close to the turn-off have convective cores. VandenBerg et al. investigated the possibility of using the morphology of the M67 turn-off to put constraints on the solar metallicity, particularly CNO elements, for which solar abundances have been revised downwards by more than 30% over the last few years. Here, we extend their work filling in the gaps in their analysis. To this aim, we compute isochrones appropriate for M67 using new (low metallicity) and old (high metallicity) solar abundances and study whether the characteristic turn-off in the CMD of M67 can be reproduced or not. We also study the importance of other constitutive physics on determining the presence of such a hook, particularly element diffusion, overshooting and nuclear reaction rates. We find that using the new solar abundance determinations, with low CNO abundances, makes it more difficult to reproduce the characteristic CMD of M67. This result is in agreement with results by VandenBerg et al. However, changes in the constitutive physics of the models, particularly overshooting, can influence and alter this result to the extent that isochrones constructed with models using low CNO solar abundances can also reproduce the turn-off morphology in M67. We conclude that only if all factors affecting the turn-off morphology are completely under control (and this is not the case), M67 could be used to put constraints on solar abundances.
description: 11 pages including 9 figures and 1 table. Submitted to ApJ
A wavelet-based tool for studying non-periodicity
Creators: name: Benítez, R.
name: Bolós, V. J.
name: Ramírez, M. E.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Dynamical Systems (math.DS)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 37D99, 42C40

description: This paper presents a new numerical approach to the study of non-periodicity in signals, which can complement the maximal Lyapunov exponent method for determining chaos transitions of a given dynamical system. The proposed technique is based on the continuous wavelet transform and the wavelet multiresolution analysis. A new parameter, the \textit{scale index}, is introduced and interpreted as a measure of the degree of the signal's non-periodicity. This methodology is successfully applied to three classical dynamical systems: the Bonhoeffer-van der Pol oscillator, the logistic map, and the Henon map.
description: 14 pages, 6 figures
title: Vecchie e nuove certezze nel diritto amministrativo. Elementi essenziali e metodo gradualista. Dibattito sugli scritti di Giampaolo Rossi
Creators: name: Grassi, Francesco
name: Kassim, Omar Hagi
Publisher: name: RomaTrE-Press
Year: 2021

description: Per fissare le novità contenute nei suoi scritti e il suo percorso di riflessione, Giampaolo Rossi ha scritto una Guida alla lettura e un suo allievo, Danilo Pappano, ha redatto un Glossario delle nuove definizioni e degli apporti principali. Su questi si è aperta una ampia riflessione e un vivace dibattito, con vari contributi di accademici, magistrati e giovani studiosi. Il volume, oltre alla Guida alla lettura e al Glossario, raccoglie tutti i contributi pervenuti, i quali evidenziano i profili di innovazione frutto del lavoro dell’Autore ma, in qualche caso, muovono critiche o esprimono la preferenza per un metodo diverso. Gran parte dei contributi si soffermano sul metodo gradualista, evidenziandone l’idoneità a comprendere le certezze essenziali (come ‘pubblico’ e ‘privato’, o ‘provvedimento’ e ‘contratto’) e le infinite sfumature fra le due nozioni base, nella consapevolezza che le nozioni fondamentali non vanno travolte nell’incertezza complessiva che caratterizza l’attuale fase storica.
Sulle note della memoria: esplorare i contrasti ritmici per esercitare la memoria
Creators: name: Careddu, Antonella
Publisher: name: Scuola Universitaria della Svizzera Italiana (SUPSI)
Year: 2024
Subjects: attenzione
memoria di lavoro
inibizione
ritmica
contrasti musicali

description: Le funzioni esecutive e la ritmica sono aspetti importanti per lo sviluppo dei bambini nel contesto scolastico e nella società. L'esercizio di questi componenti, interconnessi tra loro, promuove la crescita all'interno della scuola dell'infanzia. Questo lavoro si propone di investigare come interventi ritmici caratterizzati da contrasti musicali possano stimolare l'attenzione e la memoria nei bambini della scuola dell'infanzia. La ricerca si basa su un progetto che propone una serie di attività mirate volte a migliorare la capacità di attenzione e di memorizzazione delle informazioni. Per documentare il percorso, è stato adottato un approccio qualitativo utilizzando strumenti di indagine quali griglie di osservazione, videoregistrazioni, fotocamera, protocolli narrativi e osservazione collaborativa. Lo studio ha rivelato che gli interventi proposti hanno influenzato positivamente la capacità di attenzione, con un aumento della capacità di inibizione degli stimoli, e la memoria, con una maggiore capacità di ritenzione delle informazioni. Inoltre, è stata osservata una flessibilità creativa in diversi contesti didattici. Relatrice: Veronica Simona Benhamza.
Indian Women Novelists in English: Art and Vision by Dr. Dipak Giri
Creators: name: Dr. Meetu Bhatia Kapur
Publisher: name: Maheswari Publishers, Pandian Educational Trust
Year: 2024

description: The book Indian Women Novelists in English: Art and Vision edited by Dr. Dipak Giri is a anthology of twenty five research articles on contemporary Indian women novelists and their works ranging from Anita Desai, Shashi Deshpande, Manju Kapur, Shobhaa De, Meena Alexander, Githa Hariharan, Arundhati Roy to the younger generation of novelists Anita Nair, Kiran Desai and Jhumpa Lahiri along with two less explored novelists Rita Garg and Nayeema Mahjoor. Three regional writers- Sarah Joseph, Qurratulain Hyder and Mahasweta Devi are also part of this volume, though their write-ups are in regional languages, yet their translated works in English have earned wide popularity. The anthology with its diversity of topics is able to instill knowledge into the critical minds by opening many windows of knowledge to be revisited in the field of Indian women novelists and their works.
Flare induced penumbra formation in the sunspot of NOAA 10838
Creators: name: Padinhatteeri, Sreejith
name: K, Sankarasubramanian
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We have observed formation of penumbrae on a pore in the active region NOAA10838 using Dunn Solar Telescope at NSO,Sunpot,USA. Simultaneous observations using different instruments (DLSP,UBF,Gband and CaK) provide us with vector magnetic field at photosphere, intensity images and Doppler velocity at different heights from photosphere to chromosphere. Results from our analysis of this particular data-set suggests that penumbrae are formed as a result of relaxation of magnetic field due to a flare happening at the same time. Images in \Halpha\ show the flare (C 2.9 as per GOES) and vector magnetic fields show a re-orientation and reduction in the global $α$ value (a measure of twist). We feel such relaxation of loop structures due to reconnections or flare could be one of the way by which field lines fall back to the photosphere to form penumbrae.
description: 4 pages, Presented at IAU symposium 273- Physics of Sun and Starspots
title: The role and scope of the UK voluntary sector
Creators: name: Kendall, Jeremy
Publisher: name: University of Kent
Year: 1996

description: This thesis describes and analyses the scope and scale of the UK voluntary sector, drawing on research undertaken within the context of an international comparative project. It provides the first systematic and comprehensive attempt to map the economic contribution of the voluntary sector in terms of paid employment and financial resources, using both a broad definition suitable for international comparative purposes and a narrow one tailored to the UK context. The methodology for constructing the mapping are described and the results are analysed, organised by the International Classification of Nonprofit Organisations (ICNPO). The thesis also sets the sector's current contributions in historical context with reference to its changing relationship with the state, and the role of religion in its development. It explores the voluntary sector's wider social and political role from a variety of perspectives. The study traces and analyses the recent development of links with the state at a general level, and disaggregated by field (housing, special employment measures, urban development, international aid and personal social services) and tier of the state (central, local and territorial government). There is also a detailed analysis of the historical and recent development of part of the largest field of voluntary sector service provision activity in the UK (under a broad definition of the sector), primary and secondary education. The thesis concludes with a discussion of what light the UK experience analyses in this study sheds on some of the main theories relating to the role and scope of the voluntary sector that have been developed in the international literature on the voluntary, non-profit or third sector.
The Diffuse Supernova Neutrino Background
Creators: name: Beacom, John F.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The Diffuse Supernova Neutrino Background (DSNB) is the weak glow of MeV neutrinos and antineutrinos from distant core-collapse supernovae. The DSNB has not been detected yet, but the Super-Kamiokande (SK) 2003 upper limit on the electron antineutrino flux is close to predictions, now quite precise, based on astrophysical data. If SK is modified with dissolved gadolinium to reduce detector backgrounds and increase the energy range for analysis, then it should detect the DSNB at a rate of a few events per year, providing a new probe of supernova neutrino emission and the cosmic core-collapse rate. If the DSNB is not detected, then new physics will be required. Neutrino astronomy, while uniquely powerful, has proven extremely difficult -- only the Sun and the nearby Supernova 1987A have been detected to date -- so the promise of detecting new sources soon is exciting indeed.
description: Submitted to Annual Review of Nuclear and Particle Science, Volume 60. 25 pages with 7 figures.
Qualitative instruments - "What psychological well-being are we talking about while our children are being killed in front of our eyes?" Exploring holistic early childhood development from the perspectives of kindergarten teachers and families in the city of Nablus during the genocide in Gaza
Creators: name: Ishtayah, Heba
Publisher: name: Zenodo
Year: 2025
Subjects: child well-being
HECDI
early childhood development
Nablus
Palestine
kindergarten
conflict zone
policy

description: This file contains the interviews developed in the study 

"What psychological well-being are we talking about while our children are being killed in front of our eyes?" Exploring holistic early childhood development from the perspectives of kindergarten teachers and families in the city of Nablus during the genocide in Gaza

The purpose of this study is to investigate young children's well-being in Nablus, Palestine, from the viewpoints of kindergarten teachers and families, using the Holistic Early Childhood Development Index (HECDI).

Three specific objectives were derived from the mail goal of this study as follow:

- Analyzing the perception of kindergarten workers and families regarding the usefulness of the (HECDI) to accurately describe factors affecting child’s well-being,

Evaluating what progress towards the (HECDI)’s indicators for children's well-being has been made in the city of Nablus,

Identifying actions that could be taken in order to improve children's well-being in the city of Nablus and the agents called into action from the perspectives of kindergarten workers and families.
Isolation and characterization of distinct populations of amyloid β aggregates using size exclusion chromatography and structure-specific antibody
Creators: name: Shyu, Chih Chieh
Publisher: name: University of British Columbia
Year: 2021

description: One of the most significant challenges in the study of Alzheimer’s disease (AD) is the elucidation of causative agents. AD belongs to a family of diseases characterized by proteinopathy—misfolded amyloidogenic proteins forming aggregates. Pathogenic amyloid aggregates are capable of prion-like propagation, serving to seed template misfolding and propagate aggregation. Literature strongly implicates amyloid-β aggregates (Aβ) as causative agent in AD, impairing synaptic transmission, causing cell death, and serving to propagate cytotoxic insults. Canonical protein aggregation proceeds in three distinct stages: with misfolding of initial monomers, followed by spontaneous formation of oligomers, and ending with deposition of insoluble fibrils as AD plaques in the brain. Aβ oligomers (AβO) have been shown to exert the most potent toxicity and propagation of aggregation both in vitro and in vivo, with monomers and fibrils being orders of magnitude weaker. As literature suggests the structure of amyloidogenic proteins confer toxicity; great efforts are being made to understand their structural and functional biology, including Aβ. However, Aβ aggregation is complex and non-linear, and the transience of oligomeric populations in solution hamper efforts to identify specific disease-causing isoforms. Literature also shows significant differences in toxicity and aggregation kinetics between synthetic and biologically-derived AβOs. As AβO causes AD, great efforts are being made to neutralize aggregate activity, with therapeutic antibodies at the forefront. However, all antibodies that underwent clinical trials up to date have failed to meet their efficacy endpoints, despite showing plaque clearance. These antibodies targeted regions of Aβ sequence, which led to broad spectrum reactivity to Aβ monomers and aggregates. This observation emphasizes the importance of elucidating AβO-specific epitopes for targeted therapy. It is thus imperative to identify and isolate individual populations of AβOs from both synthetic preparations and biological sources for target determination. In my project, size exclusion chromatography (SEC) was used to separate and collect Aβ aggregates by size, and the seeding ability of various AβOs was examined using Thioflavin-T assay. Finally, surface plasmon resonance (SPR), a state-of-the-art label-free technology that monitors protein-protein interactions in real-time, was employed to determine the specificity of antibodies developed in-house targeting structural features unique to AβO.
title: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° ÐÐ­ÐÐ¡ Ð°ÐºÑÐµÐ»ÐµÑÐ¾Ð¼ÐµÑÑÐ° Ñ ÐºÐ¾Ð¼Ð¿ÐµÐ½ÑÐ°ÑÐ¸ÐµÐ¹ Ð¿Ð¾ Ð¿ÐµÑÐµÐ¼ÐµÑÐµÐ½Ð¸Ñ
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Design of force-feedback MEMS accelerometer
Creators: name: Ð¢ÑÐ»Ð°ÐµÐ², ÐÑÑÑÐ¼
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2021
Subjects: ÐÐºÑÐµÐ»ÐµÑÐ¾Ð¼ÐµÑÑÑ
ÐÐ²ÑÐ¾Ð¼Ð°ÑÐ¸ÑÐµÑÐºÐ¸Ðµ ÑÐ¸ÑÑÐµÐ¼Ñ
Ð¼ÑÐ¼Ñ
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ÑÑÐ²ÑÑÐ²Ð¸ÑÐµÐ»ÑÐ½ÑÐ¹ ÑÐ»ÐµÐ¼ÐµÐ½Ñ
ÑÐ¸ÑÑÐµÐ¼Ð½Ð°Ñ Ð¼Ð¾Ð´ÐµÐ»Ñ
Ð´ÐµÐ»ÑÑÐ°-ÑÐ¸Ð³Ð¼Ð° Ð¼Ð¾Ð´ÑÐ»ÑÑÐ¾Ñ

description: Ð ÑÐ°Ð±Ð¾ÑÐµ Ð¿ÑÐµÐ´ÑÑÐ°Ð²Ð»ÐµÐ½Ð° ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° ÑÐ¸ÑÑÐµÐ¼Ð½Ð¾Ð¹ Ð¼Ð¾Ð´ÐµÐ»Ð¸ ÐÐ­ÐÐ¡ ÐµÐ¼ÐºÐ¾ÑÑÐ½Ð¾Ð³Ð¾ Ð°ÐºÑÐµÐ»ÐµÑÐ¾Ð¼ÐµÑÑÐ° Ñ ÐºÐ¾Ð¼Ð¿ÐµÐ½ÑÐ°ÑÐ¸ÐµÐ¹ Ð¿Ð¾ Ð¿ÐµÑÐµÐ¼ÐµÑÐµÐ½Ð¸Ñ. Ð Ð°ÑÑÐ¼Ð¾ÑÑÐµÐ½Ñ ÑÑÑÐµÑÑÐ²ÑÑÑÐ¸Ðµ ÑÐ¸Ð¿Ñ Ð¸Ð½ÑÐµÑÑÐµÐ¹ÑÐ¾Ð² Ð¿ÑÐµÐ¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¿ÐµÑÐµÐ¼ÐµÑÐµÐ½Ð¸Ñ Ð² ÐµÐ¼ÐºÐ¾ÑÑÑ, Ð° ÑÐ°ÐºÐ¶Ðµ Ð¾ÑÐ½Ð¾Ð²Ð½ÑÐµ Ð´Ð¾ÑÑÐ¾Ð¸Ð½ÑÑÐ²Ð° Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸Ñ Ð´ÐµÐ»ÑÑÐ°-ÑÐ¸Ð³Ð¼Ð° ÑÐ¿ÑÐ°Ð²Ð»ÐµÐ½Ð¸Ñ. Ð ÑÐ¾Ð´Ðµ ÑÐ°Ð±Ð¾ÑÑ Ð±ÑÐ»Ð° ÑÐ¿ÑÐ¾ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð° ÑÐ¸ÑÑÐµÐ¼Ð½Ð°Ñ Ð¼Ð¾Ð´ÐµÐ»Ñ Ð°ÐºÑÐµÐ»ÐµÑÐ¾Ð¼ÐµÑÑÐ° Ñ ÐºÐ¾Ð¼Ð¿ÐµÐ½ÑÐ°ÑÐ¸ÐµÐ¹ Ð¿Ð¾ Ð¿ÐµÑÐµÐ¼ÐµÑÐµÐ½Ð¸Ñ Ð² ÑÑÐµÐ´Ðµ Matlab/Simulink, Ð° ÑÐ°ÐºÐ¶Ðµ ÑÐ¾Ð¿Ð¾Ð»Ð¾Ð³Ð¸Ñ Ð§Ð­ ÐÐÐ.
description: This paper represents the development of a system model of MEMS capacitive accelerometer with force feedback. The existing types of interfaces for converting displacement into capacitance, as well as the main advantages of using delta-sigma control, are considered. In the course of the work the system model of the force feedback accelerometer was designed in the Matlab/Simulink environment, as well as topology of sensing element of MMA.
A drift-diffusion based electrothermal model for organic thin-film devices including electrical and thermal environment
Creators: name: Glitzky, Annegret
name: Liero, Matthias
Publisher: name: Weierstrass Institute
Year: 2023
Subjects: subject: Drift-diffusion system
subject: heat equation
subject: existence for coupled electrothermal system
subject: regularity theory
subject: Caccioppoli estimates
subject: organic semiconductor
subject: 35J57
subject: 35K05
subject: 78A35

description: We derive and investigate a stationary model for the electrothermal behavior of organic thin-film devices including their electrical and thermal environment. Whereas the electrodes are modeled by Ohm's law, the electronics of the organic device itself is described by a generalized van Roosbroeck system with temperature dependent mobilities and using Gauss--Fermi integrals for the statistical relation. The currents give rise to Joule heat which together with the heat generated by the generation/recombination of electrons and holes in the organic device occur as source terms in the heat flow equation that has to be considered on the whole domain. The crucial task is to establish that the quantities in the transfer conditions at the interfaces between electrodes and the organic semiconductor device have sufficient regularity. Therefore, we restrict the analytical treatment of the system to two spatial dimensions. We consider layered organic structures, where the physical parameters (total densities of transport states, LUMO and HOMO energies, disorder parameter, basic mobilities, activation energies, relative dielectric permittivity, heat conductivity) are piecewise constant. We prove the existence of weak solutions using Schauder's fixed point theorem and a regularity result for strongly coupled systems with nonsmooth data and mixed boundary conditions that is verified by Caccioppoli estimates and a Gehring-type lemma.
Additional file 1 of Engineered Bacillus subtilis for the de novo production of 2′-fucosyllactose
Creators: name: Zhang, Quanwei
name: Liu, Zhenmin
name: Xia, Hongzhi
name: Huang, Ziyang
name: Zhu, Yonglian
name: Xu, Linfeng
name: Liu, Yanfeng
name: Li, Jianghua
name: Du, Guocheng
name: Lv, Xueqin
name: Liu, Long
Publisher: name: figshare
Year: 2022
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: Developmental Biology
subject: Plant Biology
subject: Computational Biology

description: Additional file 1: Table S1. Plasmids used in this study. Table S2. Primers and promoters used in this study. Figure S1. The SDS-PAGE analysis of cell extracts from single-gene expression strain. Figure S2. Production of 2′-FL in the shake flakes by the engineered strain BS2.
Dephasing and interwell transitions in double quantum well heterostructures
Creators: name: Minkov, G. M.
name: Germanenko, A. V.
name: Rut, O. E.
name: Sherstobitov, A. A.
name: Bakarov, A. K.
name: Dmitriev, D. V.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: The interference quantum correction to the conductivity in the gated double quantum well Al$_x$Ga$_{1-x}$As/GaAs/Al$_x$Ga$_{1-x}$As structures is studied experimentally. The consistent analysis of the interference induced positive magnetoconductivity allows us to find the interwell transition time $τ_{12}$ and the electron dephasing time $τ_ϕ$. It has been obtained that $τ_{12}^{-1}$ resonantly depends on the difference between the electron densities in the wells as predicted theoretically. The dephasing times have been determined under the conditions when one and both quantum wells are occupied. The surprising result is that the $τ_ϕ$ value in the one well does not depend on the occupation of the other one.
description: 7 pages, 8 figures
Veri Yönetim Planı: Neden ve Nasıl?
Creators: name: Gurdal, Gultekin
Publisher: name: Zenodo
Year: 2019
Subjects: Open Data, Open Sciences, Research Data Management, Açık Veri, Açık Bilim, Araştırma Veri Yönetimi, OpenAIRE

description: Açık Bilim Yolunda: Bilimi Özgür Bırak Semineri için hazırlanmış bir sunumdur. Araştırma Veri Yönetimi (Research Data Management) ile ilgili bilgi içermektedir.
Contested Evidence: Patristic Proof Texts in Doctrinal Controversies in Twelfth-Century Constantinople
Creators: name: Krausmüller, Dirk
Publisher: name: Parekbolai. An Electronic Journal for Byzantine Literature
Year: 2023
Subjects: Eustratios of Nicaea, Soterichos Panteugenos, Constantine of Corfu

description: This article focuses on one aspect of the theological discourse in twelfth-century Constantinople: the use of Patristic proof texts. It discusses how three authors whose theological views were deemed heretical by the synod – Eustratios of Nicaea, Soterichos Panteugenos and Constantine of Corfu – sought to back up their positions through recourse to passages from the writings of Cyril of Alexandria, Andrew of Crete and John of Damascus. And it argues that the synod did not always find it easy to propose alternative interpretations of these passages.
description: Parekbolai. An Electronic Journal for Byzantine Literature, Vol 13 (2023)
Οι Ομιλίες του Νείλου Ρόδου στον Paris. gr. 1276. Η περίπτωση της Ομιλίας στην παραβολή του Δείπνου
Creators: name: Moniou, Dimitra
Publisher: name: Parekbolai. An Electronic Journal for Byzantine Literature
Year: 2023
Subjects: Neilos of Rhodes, Neilos Diasorinos, Homilies, Autographs

description: In this study a new edition of the homily On the parable of the supper by Bishop Neilos of Rhodes (1350-1437) on the basis of MS Parisinus gr. 1276 ff. 189-196v is presented. This manuscript preserves three other Neilos’ speeches, which are to be found in Neilos’ autograph MS Mosquensis Synodalis 434 (492) as well. From the comparison of the two manuscripts it is evident that Neilos, the author being the copyist of the speeches of Parisinus, wrote down a first version of those speeches, which he reworked later on and copied them with his own hand in MS Mosquensis. The differences between the two versions of the text of the homily On the parable of the supper are not negligible: those two versions are published in two columns, so that the reader may see their differences clearly.
description: Parekbolai. An Electronic Journal for Byzantine Literature, Vol 13 (2023)
Groups with poly-context-free word problem
Creators: name: Brough, Tara
Publisher: name: arXiv
Year: 2011
Subjects: subject: Group Theory (math.GR)
subject: Formal Languages and Automata Theory (cs.FL)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 20F10, 68Q45 (primary), 03D40 (secondary)

description: We consider the class of groups whose word problem is poly-context-free; that is, an intersection of finitely many context-free languages. We show that any group which is virtually a finitely generated subgroup of a direct product of free groups has poly-context-free word problem, and conjecture that the converse also holds. We prove our conjecture for several classes of soluble groups, including metabelian groups and torsion-free soluble groups, and present progress towards resolving the conjecture for soluble groups in general. Some of the techniques introduced for proving languages not to be poly-context-free may be of independent interest.
description: 38 pages, no figures
Invariant manifolds of the Bonhoeffer-van der Pol oscillator
Creators: name: Benítez, R.
name: Bolós, V. J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Dynamical Systems (math.DS)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 37D45, 34C15, 37D10

description: The stable and unstable manifolds of a saddle fixed point (SFP) of the Bonhoeffer-van der Pol oscillator are numerically studied. A correspondence between the existence of homoclinic tangencies (whic are related to the creation or destruction of Smale horseshoes) and the chaos observed in the bifurcation diagram is described. It is observed that in the non-chaotic zones of the bifurcation diagram, there may or may not be Smale horseshoes, but there are no homoclinic tangencies.
description: 14 pages, 15 figures
Belt distance between facets of space-filling zonotopes
Creators: name: Garber, Alexey
Publisher: name: arXiv
Year: 2010
Subjects: subject: Combinatorics (math.CO)
subject: Metric Geometry (math.MG)
subject: FOS: Mathematics

description: For every d-dimensional polytope P with centrally symmetric facets we can associate a "subway map" such that every line of this "subway" corresponds to set of facets parallel to one of ridges P. The belt diameter of P is the maximal number of line changes that you need to do in order to get from one station to another. In this paper we prove that belt diameter of d-dimensional space-filling zonotope is not greater than $\lceil \log_2\frac45d\rceil$. Moreover we show that this bound can not be improved in dimensions d at most 6.
description: 17 pages, 5 figures
Parent Stars of Extrasolar Planets. XI. Trends with Condensation Temperature Revisited
Creators: name: Gonzalez, Guillermo
name: Carlson, Melody
name: Tobin, Ryan W.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We report the results of abundance analyses of new samples of stars with planets and stars without detected planets. We employ these data to compare abundance-condensation temperature trends in both samples. We find that stars with planets have more negative trends. In addition, the more metal-rich stars with planets display the most negative trends. These results confirm and extend the findings of Ramirez et al. (2009) and Melendez et al. (2009), who restricted their studies to solar analogs. We also show that the differences between the solar photospheric and CI meteoritic abundances correlate with condensation temperature.
description: 7 pages, 11 figures; to be published in MNRAS
Beiträge zur Kenntniß der Justizverfassung und juristischen Literatur in den preussischen Staaten
Creators: name: Unkn
Publisher: name: unkn
Year: 2014

description: Beiträge zur Kenntniß der Justizverfassung und juristischen Literatur in den preussischen Staaten
description: Bd. 6 (1798)
OPE, charm-quark mass, and decay constants of D and D_s mesons from QCD sum rules
Creators: name: Lucha, Wolfgang
name: Melikhov, Dmitri
name: Simula, Silvano
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We present a sum-rule extraction of the decay constants of the charmed mesons D and D_s from the two-point correlator of pseudoscalar currents. First, we compare the perturbative expansion for the correlator and the decay constant performed in terms of the pole and the running MSbar masses of the charm quark. The perturbative expansion in terms of the pole mass shows no signs of convergence whereas reorganizing this very expansion in terms of the MSbar mass leads to a distinct hierarchy of the perturbative expansion. Furthermore, the decay constants extracted from the pole-mass correlator turn out to be considerably smaller than those obtained by means of the MSbar-mass correlator. Second, making use of the OPE in terms of the MSbar mass, we determine the decay constants of both D and D_s mesons with an emphasis on the uncertainties in these quantities related both to the input QCD parameters and to the limited accuracy of the method of sum rules.
description: 8 pages
Additional file 1 of The 18-month efficacy of an Intensive LifeStyle Modification Program (ILSM) to reduce type 2 diabetes risk among rural women: a cluster randomized controlled trial
Creators: name: Zhong, Qinyi
name: Chen, Yao
name: Luo, Mengchun
name: Lin, Qian
name: Tan, Jianghong
name: Xiao, Shuiyuan
name: Willey, James Allen
name: Chen, Jyu-Lin
name: Whittemore, Robin
name: Guo, Jia
Publisher: name: figshare
Year: 2023
Subjects: Medicine
Biotechnology
Biological Sciences not elsewhere classified
Cancer
Science Policy

description: Additional file 1: Appendix I. Fidelity Checklist of Intensive LifeStyle Modification Program.