cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Aphanes arvensis
title: Acker-Frauenmantel (Aphanes arvensis)
titleType: AlternativeTitle
Creators: name: Schulz, Herbert
Publisher: name: Universitätsbibliothek Braunschweig
Year: 2006
Subjects: subject: Diasammlung Herbert Schulz
subject: 580

description: Enthält 4 Bilder des Acker-Frauenmantels.
Accurate Energetic Constraints for Passive Grasp Stability Analysis
Creators: name: Haas-Heger, Maximilian
name: Ciocarlie, Matei
Publisher: name: arXiv
Year: 2019
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Passive reaction effects in grasp stability analysis occur when the contact forces and joint torques applied by a grasp change in response to external disturbances applied to the grasped object. For example, nonbackdrivable actuators (e.g. highly geared servos) will passively resist external disturbances without an actively applied command; for numerous robot hands using such motors, these effects can be highly beneficial as they increase grasp resistance without requiring active control. We introduce a grasp stability analysis method that can model these effects, and, for a given grasp, distinguish between disturbances that will be passively resisted and those that will not. We find that, in order to achieve this, the grasp model must include accurate energetic constraints. One way to achieve this is to consider the Maximum Dissipation Principle (MDP), a part of the Coulomb friction model that is rarely used in grasp stability analysis. However, the MDP constraints are non-convex, and difficult to solve efficiently. We thus introduce a convex relaxation method, along with an algorithm that successively refines this relaxation locally in order to obtain solutions to arbitrary accuracy efficiently. Our resulting algorithm can determine if a grasp is passively stable, solve for equilibrium contact forces and compute optimal actuator commands for stability. Its implementation is publicly available as part of the open-source GraspIt! simulator.
description: 18 pages, 13 figures, 2 tables, 1 algorithm
Evaluating Public Housing for Migrants in China: A Case Study of Public Rental Housing in Dongguan
Creators: Huang, Ying
Publisher: name: Columbia University
Year: 2017
Subjects: Migrant labor--Housing
City planning
Urbanization--Social aspects

description: This thesis evaluates the affordability and accessibility of public rental housing for migrants by taking Dongguan as a case study. It includes six sections. Section one is the introduction, and the background of affordable housing policy in China. Section two offers a literature review of studies about public rental housing and migrant housing in China. Section three provides the methodology of the research, including theoretical framework of affordability and accessibility, methods, and data sources. Section four and five gives a specific background of public rental housing in Dongguan. Section six analyzes the public housing affordability and accessibility for migrants and explains the findings. Section seven gives a conclusion and suggestions on how to offer affording housing to migrants in the way of public rental housing based on previews results.
Benchmarking Large Language Models on CFLUE -- A Chinese Financial Language Understanding Evaluation Dataset
Creators: name: Zhu, Jie
name: Li, Junhui
name: Wen, Yalong
name: Guo, Lifan
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computation and Language (cs.CL)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: In light of recent breakthroughs in large language models (LLMs) that have revolutionized natural language processing (NLP), there is an urgent need for new benchmarks to keep pace with the fast development of LLMs. In this paper, we propose CFLUE, the Chinese Financial Language Understanding Evaluation benchmark, designed to assess the capability of LLMs across various dimensions. Specifically, CFLUE provides datasets tailored for both knowledge assessment and application assessment. In knowledge assessment, it consists of 38K+ multiple-choice questions with associated solution explanations. These questions serve dual purposes: answer prediction and question reasoning. In application assessment, CFLUE features 16K+ test instances across distinct groups of NLP tasks such as text classification, machine translation, relation extraction, reading comprehension, and text generation. Upon CFLUE, we conduct a thorough evaluation of representative LLMs. The results reveal that only GPT-4 and GPT-4-turbo achieve an accuracy exceeding 60\% in answer prediction for knowledge assessment, suggesting that there is still substantial room for improvement in current LLMs. In application assessment, although GPT-4 and GPT-4-turbo are the top two performers, their considerable advantage over lightweight LLMs is noticeably diminished. The datasets and scripts associated with CFLUE are openly accessible at https://github.com/aliyun/cflue.
description: Accepted by ACL 2024
Utilizing the method of De Bono Six Thinking Hats for making educational decisions
Creators: name: PAPAKITSOS, EVANGELOS C.
name: THEOLOGIS, EVANGELOS
name: FOULIDI, XANTHIPPI
name: KARAKIOZIS, KONSTANTINOS
name: LOULAKIS, MICHAIL
name: FOTOU, KONSTANTINA
Publisher: name: Educational Journal of the University of Patras UNESCO Chair
Year: 2017
Subjects: Six Thinking Hats, decision-making, educational decisions, career guidance

description: The presented teaching scenario utilizes the technique of Edward De Bono “Six Thinking Hats”, which by using an experiential and interdisciplinary way of learning, namely, visual plastic constructions, painting, theater, poetry, and songs, guides the students of secondary education in making vocational education decisions. This scenario has been experimentally implemented in the experiential activities of career guidance programmes in the Greek secondary education. Briefly, the students of a class are divided into six teams. In the first phase after an introductory exercise in each team, they make the colored hats. The teacher walks between the teams, reciting poems that correspond to the color of each hat. Then a practical problem is given and an activity follows, related to resolving this problem. In the next phase, each team fills a dashboard with paintings, drawings, words and poems related to the color of their hat, which is presented to the entire class. Finally, the students are invited to reflect on the process of the Six Thinking Hats for solving practical problems that are associated with their studies and career choices.
description: Educational Journal of the University of Patras UNESCO Chair, Vol. 4, N. 1 (2017)
title: Alchemilla glaucescens
title: Graugrüner Frauenmantel (Alchemilla glaucescens)
titleType: AlternativeTitle
Creators: name: Schulz, Herbert
Publisher: name: Universitätsbibliothek Braunschweig
Year: 2006
Subjects: subject: Diasammlung Herbert Schulz
subject: 580

description: Enthält 3 Bilder des Graugrünen Frauenmantels.
Optomechanical response with nanometer resolution in the self-mixing signal of a terahertz quantum cascade laser
Creators: name: Ottomaniello, Andrea
name: Keeley, James
name: Rubino, Pierluigi
name: Li, Lianhe
name: Cecchini, Marco
name: Linfield, Edmund H.
name: Davies, A. Giles
name: Dean, Paul
name: Pitanti, Alessandro
name: Tredicucci, Alessandro
Publisher: name: arXiv
Year: 2019
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The effectiveness of self-mixing interferometry has been demonstrated across the electromagnetic spectrum, from visible to microwave frequencies, in a plethora of sensing applications, ranging from distance measurement to material analysis, microscopy and coherent imaging. Owing to their intrinsic stability to optical feedback, quantum cascade lasers (QCLs) represent a source that offers unique and versatile characteristics to further improve the self-mixing functionality at mid infrared and terahertz (THz) frequencies. Here, we show the feasibility of detecting with nanometer precision deeply subwalength (< λ/6000) mechanical vibrations of a suspended Si3N4-membrane used as the external element of a THz QCL feedback interferometric apparatus. Besides representing a platform for the characterization of small displacements, our self-mixing configuration can be exploited for the realization of optomechanical systems, where several laser sources can be linked together through a common mechanical microresonator actuated by radiation pressure.
description: 5 pages, 4 figures
The road to resilience: breaking the cycle of disadvantage
Creators: name: CHRYSANI, ATHINA
name: KALOGERAKIS, PANAGIOTIS
name: KATSIS, ATHANASSIOS
Publisher: name: Educational Journal of the University of Patras UNESCO Chair
Year: 2017
Subjects: PISA, resilient students, Economic Social and Cultural Status, Finland, Portugal, Croatia

description: This paper aims to explore the set of characteristics that construct the profile of resilient students based on the OECD's PISA data. The sample of the research consists of low economic, social and cultural status students from Finland, Portugal and Croatia. The selection of the above three countries was grounded in factors related to each country's education system and also to their respective PISA results. The SPSS platform was used for the data analysis and the following descriptive statistical process. The present study suggests that resilient students form and develop certain attributes that provide them with the strength and fortitude to achieve school success.
description: Educational Journal of the University of Patras UNESCO Chair, Vol. 4, N. 1 (2017)
title: Alchemilla alpina agg.
title: Alpen-Frauenmantel (Alchemilla alpina agg.)
titleType: AlternativeTitle
Creators: name: Schulz, Herbert
Publisher: name: Universitätsbibliothek Braunschweig
Year: 2006
Subjects: subject: Silbermantel
subject: Alchemilla opaca
subject: Diasammlung Herbert Schulz
subject: 580

description: Enthält 8 Bilder des Alpen-Frauenmantels.
Refined Algebraic Quantization in the oscillator representation of SL(2,R)
Creators: name: Louko, Jorma
name: Rovelli, Carlo
Publisher: name: arXiv
Year: 1999
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Algebra (math.QA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We investigate Refined Algebraic Quantization (RAQ) with group averaging in a constrained Hamiltonian system with unreduced phase space T^*R^4 and gauge group SL(2,R). The reduced phase space M is connected and contains four mutually disconnected `regular' sectors with topology R x S^1, but these sectors are connected to each other through an exceptional set where M is not a manifold and where M has non-Hausdorff topology. The RAQ physical Hilbert space H_{phys} decomposes as H_{phys} = (direct sum of) H_i, where the four subspaces H_i naturally correspond to the four regular sectors of M. The RAQ observable algebra A_{obs}, represented on H_{phys}, contains natural subalgebras represented on each H_i. The group averaging takes place in the oscillator representation of SL(2,R) on L^2(R^{2,2}), and ensuring convergence requires a subtle choice for the test state space: the classical analogue of this choice is to excise from M the exceptional set while nevertheless retaining information about the connections between the regular sectors. A quantum theory with the Hilbert space H_{phys} and a finitely-generated observable subalgebra of A_{obs} is recovered through both Ashtekar's Algebraic Quantization and Isham's group theoretic quantization.
description: 30 pages, REVTeX v3.1 with amsfonts. (v4: Published version.)
phi^4 Kinks - Gradient Flow and Dynamics
Creators: name: Manton, N. S.
name: Merabet, H.
Publisher: name: arXiv
Year: 1996
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: The symmetric dynamics of two kinks and one antikink in classical (1+1)-dimensional $ϕ^4$ theory is investigated. Gradient flow is used to construct a collective coordinate model of the system. The relationship between the discrete vibrational mode of a single kink, and the process of kink-antikink pair production is explored.
description: 23 pages, LaTex, 11 eps figures. We have added some clarification of our method
Non-biodegradable objects may boost microbial growth by harnessing bubbles.
Creators: name: Srivastava, Atul
name: Kikuchi, Kenji
name: Ishikawa, Takuji
Publisher: name: figshare
Year: 2021
Subjects: subject: 90302 Biomechanical Engineering
subject: FOS: Medical engineering

description: The document contains all simulation and experimental datasets generated during the titled study.
Additional file 7: of Btk inhibitor ibrutinib reduces inflammatory myeloid cell responses in the lung during murine pneumococcal pneumonia
Creators: name: de Porto, Alexander
name: Liu, Zhe
name: de Beer, Regina
name: Florquin, Sandrine
name: de Boer, Onno
name: Hendriks, Rudi
name: van der Poll, Tom
name: de Vos, Alex
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences

description: Table S2. BALF and plasma cytokine and chemokine levels in a clinical model of S.pneumoniae infection. (DOC 44 kb)
Secondary school students’ awareness and use of mobile phones for academic purpose
Creators: name: FAKOKUNDE, JUBRIL B.
Publisher: name: Educational Journal of the University of Patras UNESCO Chair
Year: 2017
Subjects: Academic purpose, mobile phone, students’ awareness

description: The study examined secondary school students’ awareness of the educational use of mobile phones and their use of the device. The study adopted survey research design in which 250 senior secondary school students were purposively selected from four public high schools in Ilesa metropolis of Osun State, Nigeria. The instrument for data collection was a self-developed questionnaire divided into two sections with 16 items on each section based on the research topic. Three research questions were generated and answered. The result showed that majority of the respondents are aware of educational use of mobile phone though, the frequency of the use for the purpose of learning is not encouraging but there is significant relationship between the students’ level of awareness and their use of mobile phone for learning. The study therefore suggests that blanket ban should not be placed on the use of mobile phones within the school environment by secondary school students. Curriculum planners should incorporate the use of mobile phone as a tool for learning in secondary school while appropriate rules and regulations should be put in place to guide the use of mobile phones within the school environment by secondary school student.
description: Educational Journal of the University of Patras UNESCO Chair, Vol. 4, N. 1 (2017)
title: Alchemilla plicatula
title: Gefalteter Frauenmantel (Alchemilla plicatula)
titleType: AlternativeTitle
Creators: name: Schulz, Herbert
Publisher: name: Universitätsbibliothek Braunschweig
Year: 2006
Subjects: subject: Gefalteter Silbermantel
subject: Diasammlung Herbert Schulz
subject: 580

description: Enthält 3 Bilder des Gefalteten Frauenmantels.
Additional file 1 of Nuclear respiratory factor 1 promotes the growth of liver hepatocellular carcinoma cells via E2F1 transcriptional activation
Creators: name: Wang, Dan
name: Wan, Baolan
name: Zhang, Xiaojing
name: Sun, Pingping
name: Lu, Shu
name: Liu, Chenxu
name: Zhu, Li
Publisher: name: figshare
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Table S1. The NRF1 downstream genes with a cell cycle association were identified by DAVID, KOBAS and Metascape online databases. Table S2. The overlapping NRF1 target genes in GO and Reactome analyses are detailed in the table. Table S3. The putative specific loci and the scoring of NRF1 in the promoter proximal regions of E2F1 were analyzed by the open-access database JASPAR.
SOCIO-PEDAGOGICAL ISSUES IN DEVELOPING ACTIVE CIVIC COMPETENCE AMONG DEAF AND HARD-OF-HEARING CHILDREN
Creators: name: Fozilov, Botirjon
Publisher: name: Zenodo
Year: 2025

description: The article explores the socio-pedagogical challenges in developing active civic competence among deaf and hard-of-hearing children. It highlights the importance of fostering civic responsibility, legal awareness, and social participation in this group through targeted educational methods. The research emphasizes the need for inclusive pedagogical approaches and comprehensive training programs to empower these children, ensuring their active involvement in societal processes. It also discusses the role of specialized educational institutions and family support in shaping their civic skills and preparing them for independent social life.
title: Towards a community-wide effort for benchmarking in subsurface hydrological inversion : benchmarking cases, high-fidelity reference solutions, procedure, and first comparison
Creators: name: Xu, Teng
name: Xiao, Sinan
name: Reuschen, Sebastian
name: Wildt, Nils
name: Hendricks Franssen, Harrie-Jan
name: Nowak, Wolfgang
Publisher: name: Universität Stuttgart
Year: 2024
Subjects: subject: 550

description: Inversion in subsurface hydrology refers to estimating spatial distributions of (typically hydraulic) properties often associated with quantified uncertainty. Many methods are available, each characterized by a set of assumptions, approximations, and numerical implementations. Only a few intercomparison studies have been performed (in the remote past) amongst different approaches (e.g., Zimmerman et al., 1998; Hendricks Franssen et al., 2009). These intercomparisons guarantee broad participation to push forward research efforts of the entire subsurface hydrological inversion community. However, from past studies until now, comparisons have been made among approximate methods without firm reference solutions. Note that the reference solutions are the best possible solutions with the best estimate and posterior standard deviation and so forth. Without reference solutions, one can only compare competing best estimates and their associated uncertainties in an intercomparison sense, and absolute statements on accuracy are unreachable. Our current initiative defines benchmarking scenarios for groundwater model inversion. These are targeted for community-wide use as test cases in intercomparison scenarios. Here, we develop five synthetic, open-source benchmarking scenarios for the inversion of hydraulic conductivity from pressure data. We also provide highly accurate reference solutions produced with massive high-performance computing efforts and with a high-fidelity Markov chain Monte Carlo (MCMC)-type solution algorithm. Our high-end reference solutions are publicly available along with the benchmarking scenarios, the reference algorithm, and the suggested benchmarking metrics. Thus, in comparison studies, one can test against high-fidelity reference solutions rather than discussing different approximations. To demonstrate how to use these benchmarking scenarios, reference solutions, and suggested metrics, we provide a blueprint comparison of a specific ensemble Kalman filter (EnKF) version. We invite the community to use our benchmarking scenarios and reference solutions now and into the far future in a community-wide effort towards clean and conclusive benchmarking. For now, we aim at an article collection in an appropriate journal, where such clean comparison studies can be submitted together with an editorial summary that provides an overview.
Intelligent application for Heart disease detection using Hybrid Optimization algorithm
Creators: name: Eskandari, Marzieh
name: Hassani, Zeinab
Publisher: name: figshare
Year: 2021
Subjects: Applied Computer Science
Theoretical Computer Science

description: Prediction of heart disease is very important because itis one of the causes of death around the world. More- over, heart disease prediction in the early stage plays a main role in the treatment and recovery disease and reduces costs of diagnosis disease and side effects it. Ma- chine learning algorithms are able to identify an effective pattern for diagnosis and treatment of the disease and identify effective factors in the disease. this paper is in- vestigated a new hybrid algorithm of Whale Optimiza- tion and Dragonfly algorithm using a machine learning algorithm. the hybrid algorithm employs a Support Vec- tor Machine algorithm for effective Prediction of heart disease. Proposed method is evaluated by Cleveland standard heart disease dataset. The experimental re- sult indicates that the SVM accuracy of 88.89 % and nine features are selected in this respect.
Description of infinite dimensional abelian regular Lie groups
Creators: name: Michor, Peter W.
name: Teichmann, Josef
Publisher: name: arXiv
Year: 1998
Subjects: subject: Differential Geometry (math.DG)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 22E65, 58B25, 53C05

description: It is shown that every abelian regular Lie group is a quotient of its Lie algebra via the exponential mapping.
description: AmSTeX, 2 pages
Additional file 4: of Postoperative elective pelvic nodal irradiation compared to prostate bed irradiation in locally advanced prostate cancer â a retrospective analysis of dose-escalated patients
Creators: name: Link, Carola
name: Honeck, Patrick
name: Makabe, Akiko
name: Giordano, Frank
name: Bolenz, Christian
name: Joerg Schaefer
name: Bohrer, Markus
name: Lohr, Frank
name: Wenz, Frederik
name: Buergy, Daniel
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Cell Biology
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Hematology

description: Figure S4. (a-b) Univariate survival analyses of patients with PSA values of â Ľ0.2 ng/ml compared to lower values. (c-d) Univariate survival analyses of patients with Gleason scores of 8-10 compared to Gleason 6-7 (surgical specimen). (e-f) Univariate survival analyses of patients with Roach scores of â Ľ25 compared to lower scores. (DOCX 547 kb)
Convergence of Distributed Stochastic Variance Reduced Methods without Sampling Extra Data
Creators: name: Cen, Shicong
name: Zhang, Huishuai
name: Chi, Yuejie
name: Chen, Wei
name: Liu, Tie-Yan
Publisher: name: arXiv
Year: 2019
Subjects: subject: Machine Learning (cs.LG)
subject: Optimization and Control (math.OC)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Stochastic variance reduced methods have gained a lot of interest recently for empirical risk minimization due to its appealing run time complexity. When the data size is large and disjointly stored on different machines, it becomes imperative to distribute the implementation of such variance reduced methods. In this paper, we consider a general framework that directly distributes popular stochastic variance reduced methods in the master/slave model, by assigning outer loops to the parameter server, and inner loops to worker machines. This framework is natural and friendly to implement, but its theoretical convergence is not well understood. We obtain a comprehensive understanding of algorithmic convergence with respect to data homogeneity by measuring the smoothness of the discrepancy between the local and global loss functions. We establish the linear convergence of distributed versions of a family of stochastic variance reduced algorithms, including those using accelerated and recursive gradient updates, for minimizing strongly convex losses. Our theory captures how the convergence of distributed algorithms behaves as the number of machines and the size of local data vary. Furthermore, we show that when the data are less balanced, regularization can be used to ensure convergence at a slower rate. We also demonstrate that our analysis can be further extended to handle nonconvex loss functions.
title: FPGA Design and Implementation of Wavelet Coherence for EEG Signals
Creators: name: Qassim, Yahya Taher
Publisher: name: Griffith University
Year: 2014
Subjects: subject: Electroencephalogram (EEG) signals
subject: Field Programmable Gate Array (FPGA) design
subject: Wavelet coherence

description: The EEG waveform provides millisecond resolution brain information that can be obtained from the scalp using metal electrodes. It has become an applicable measure for a wide range of brain functionalities (including higher cognition) due to its low cost, non-invasiveness and ease of access. An important EEG application uses an evoked form of these signals linked to an external stimulus. For this thesis, an EEG was acquired during presentation of an oddball task and recording the event related potential (ERP), in which the P300 component is the most important. It reflects the participant’s response to rare or occasional stimulus events. Extracting features from these non-stationary signals can be achieved with a time-frequency method such as the continuous wavelet transform (CWT) whereas examining the functional connectivity between a pair of brain channels, as a source of EEG, can be achieved with the wavelet coherence (WC). However, the real time processing of these two digital signal processing (DSP) algorithms, which imply a large number of computations, requires running them with minimal delay for use in real time biofeedback applications. To achieve the required speed of processing for real time EEG applications, the involvement of hardware computation is required. One of the well-known hardware platforms in the field of DSP is the Field Programmable Gate Array (FPGA). These devices allow digital implementation of a wide range of DSP algorithms with a high processing speed, in addition to their configurability and portability. The aim of this thesis was the FPGA design and implementation of WC for EEG signals.
Understanding, Categorizing and Predicting Semantic Image-Text Relations
Creators: name: Otto, Christian
name: Springstein, Matthias
name: Anand, Avishek
name: Ewerth, Ralph
Publisher: name: arXiv
Year: 2019
Subjects: subject: Multimedia (cs.MM)
subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: Two modalities are often used to convey information in a complementary and beneficial manner, e.g., in online news, videos, educational resources, or scientific publications. The automatic understanding of semantic correlations between text and associated images as well as their interplay has a great potential for enhanced multimodal web search and recommender systems. However, automatic understanding of multimodal information is still an unsolved research problem. Recent approaches such as image captioning focus on precisely describing visual content and translating it to text, but typically address neither semantic interpretations nor the specific role or purpose of an image-text constellation. In this paper, we go beyond previous work and investigate, inspired by research in visual communication, useful semantic image-text relations for multimodal information retrieval. We derive a categorization of eight semantic image-text classes (e.g., "illustration" or "anchorage") and show how they can systematically be characterized by a set of three metrics: cross-modal mutual information, semantic correlation, and the status relation of image and text. Furthermore, we present a deep learning system to predict these classes by utilizing multimodal embeddings. To obtain a sufficiently large amount of training data, we have automatically collected and augmented data from a variety of data sets and web resources, which enables future research on this topic. Experimental results on a demanding test set demonstrate the feasibility of the approach.
description: 8 pages, 8 Figures, 5 tables
title: Thin GB14 coatings on implants using HVSFS
Creators: name: Lanzino, Maria Carolina
name: Le, Long-Quan R. V.
name: Wilbig, Janka
name: Rheinheimer, Wolfgang
name: Seidenstuecker, Michael
name: Günster, Jens
name: Killinger, Andreas
Publisher: name: Universität Stuttgart
Year: 2024
Subjects: subject: 670

description: Enhancing osseointegration, the process by which medical implants securely bond to bone, is crucial for improving patient outcomes in orthopedics and dental surgery. Calcium alkali orthophosphates, with their superior bioactivity, resorbability, and chemical resemblance to bone minerals, have emerged as promising candidates for implant coatings. These materials offer improved solubility and lower melting points due to the substitution of calcium with potassium and sodium, along with the addition of magnesium oxide. This study investigates GB14 calcium alkali orthophosphate coatings applied via High Velocity Suspension Flame Spraying (HVSFS), a technique that enables precise control over coating properties. A porosity target of >10% was set to promote bone growth, and we achieved porosities up to 13%, ensuring better cell penetration and stability at the implant-bone interface. Coatings were produced using different gas parameters and distances, with their microstructure and phase composition analyzed using scanning electron microscope (SEM), Vickers hardness testing and X-ray diffraction (XRD). Additionally, roughness and porosity were also assessed. Different coating’s microstructures were achieved by varying stand-off distance and gas parameters. Increasing stand-off distance while reducing gas stoichiometry enabled the production of calcium alkali orthophosphate coatings with fewer cracks, higher porosity and a hardness level comparable to that of state-of-the-art tricalcium phosphate (TCP) coatings. The sample with optimized properties in terms of achieved microstructure and topography was selected for in vitro testing using MG63 osteosarcoma cells to evaluate cell proliferation and adhesion. WST (I) assay, LDH assay, and live/dead staining confirmed the biocompatibility of the coatings, highlighting the potential of HVSFS to enhance osseointegration and outperform conventional methods in implantology. No relevant cytotoxicity could be shown and cells show a good proliferation over time. These results highlight thus the potential of HVSFS to produce thin, bioactive and resorbable coatings to enhance osseointegration.
Derivation of the Tully-Fisher Law from General Relativity Theory: Doubts about the Existence of Halo Dark Matter
Creators: name: Behar, Silvia
name: Carmeli, Moshe
Publisher: name: arXiv
Year: 1999
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Observations show that for disk galaxies the fourth power of the circular velocity of stars around the core of the galaxy is proportional to the luminosity L. This is known as the Tully-Fisher law. Since L is proportional to the mass M of the galaxy, it follows that the fourth power of the circular velocity is proportional to M. Newtonian mechanics, however, tells that the square of the circular velocity is proportional to M. In order to rectify this big difference, astronomers assume the existence of halo dark matter. In this paper we show that general relativity theory yields a term of the Tully-Fisher form. This puts doubts about the necessity and existence of halo dark matter for galaxies.
Supernova Siblings and Spectroscopic Host-Galaxy Properties
Creators: name: Salo, Laura
name: Zhou, Rui
name: Johnson, Samuel
name: Kelly, Patrick
name: Jones, Galin L.
Publisher: name: arXiv
Year: 2025
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Over the past century, supernova (SN) searches have detected multiple supernovae (SNe) in hundreds of individual galaxies. So-called SN siblings discovered in the same galaxy present an opportunity to constrain the dependence of the properties of SNe on those of their host galaxies. To investigate whether there is a connection between sibling SNe in galaxies that have hosted multiple SNe and the properties of galaxies, we have acquired integrated optical spectroscopy of 59 galaxies with multiple core-collapse SNe. Perhaps surprisingly, a strong majority of host-galaxy spectra fall within the composite region of the Baldwin-Phillips-Terlevich (BPT) diagram. We find a statistically significant difference (KS test p-value = 0.044) between the distributions of the [NII] $λ$6583/H$α$ of galaxies that have hosted a majority SN Ibc and those that have hosted a majority SN II, where the majority SN Ibc galaxies have, on average, higher ratios. The difference between the distributions of [NII] $λ$6583/H$α$ may arise from either increased contribution from AGN or LINERs in SN Ibc host galaxies, greater metallicity for SN Ibc host galaxies, or both. When comparing the inferred oxygen abundance and the ionization parameter for the galaxies in the Star-Forming region on the BPT diagram, we find statistically significant differences between the distributions for SN Ibc hosts and SN II hosts (p=0.008 and p=0.001, respectively), as well as SN Ib hosts and SN II hosts (p=0.030 and p=0.006, respectively). We also compare the H$α$ equivalent width distributions, also integrated across the galaxies, and find no significant difference.
description: 17 pages, 14 figures, 5 tables (additional 41 pages, 2 figures, and 10 tables in the appendix)
Invariance of Plurigenera
Creators: name: Siu, Yum-Tong
Publisher: name: arXiv
Year: 1997
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14D25, 32G05 (Primary) 32J25 (Secondary)

description: The following conjecture on the deformation invariance of plurigenera is proved. For a smooth projective holomorphic family of compact complex manifolds over the open unit 1-disk such that all the fibers are of general type, every plurigenus of the fiber is independent of the fiber. The proof uses Nadel's multiplier ideal sheaves, Skoda's result on the generation of ideals with L2 estimates with respect to a plurisubharmonic weight, and the extension theorem of Ohsawa-Takegoshi-Manivel for holomorphic top-degree forms which are L2 with respect to a plurisubharmonic weight.
description: 13 pages, LaTeX file
Additional file 4: of A chloroplast-targeted pentatricopeptide repeat protein PPR287 is crucial for chloroplast function and Arabidopsis development
Creators: name: Kwanuk Lee
name: Park, Su
name: Han, Ji
name: Jeon, Young
name: Pai, Hyun-Sook
name: Hunseung Kang
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Molecular Biology
subject: Ecology
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Plant Biology

description: PPR287 plays a role in plant growth and development. (a) Bolting time, (b) leaf number at bolting, (c) plant height, and (d) seed yield of the Col-0, ppr287 mutant, knockdown mutant (KD1), and complementation line (Com1). Values are mean ± SE of three independent experiments (n = 5), and statistically different values are indicated by asterisks (P ≤ 0.05). (e) Growth and leaf morphology at 27 days. Bar = 1 cm. (PDF 161 kb)
EFFECT OF GRAIN CHARACTERISTICS ON THE BEHAVIOUR OF DISSEMINATED METHANE HYDRATE BEARING SEDIMENTS
Creators: name: Kingston, Emily
name: Clayton, Chris R.I.
name: Priest, Jeffery
name: Best, Angus I.
Publisher: name: The University of British Columbia
Year: 2008

description: Results of seismic surveys are routinely used to assess the presence of methane hydrate in deep ocean sediments. Accurate estimates of hydrate distribution and volume within the sediment are required to assess the potential of gas hydrate as an energy resource, driver for climate change or as a geotechnical hazard. However, seismic velocity may be affected not only by the quantity and morphology of the hydrate, but also by the properties of the host sediment, for example its particle size distribution and grain shape. This paper reports the results of experiments conducted to determine dynamic geophysical properties such as compressional wave velocity (Vp), shear wave velocity (Vs) and their respective attenuation measurements (Qp -1 and Qs -1) of specimens with varying amounts of disseminated methane hydrate within materials with different particle shapes and sizes. The results show that the impact of disseminated hydrate is affected both by mean particle size and by particle sphericity, with the surface area of the sediment grains influencing the spread of hydrate throughout a material and therefore it’s bonding capabilities. The sediments with 10% hydrate content show the highest surface areas correspond to the least increase in seismic velocity while sediments with low surface areas gives the most.
title: Polyphosphate kinases phosphorylate thiamine phosphates
Creators: name: Hildenbrand, Jennie C.
name: Sprenger, Georg A.
name: Teleki, Attila
name: Takors, Ralf
name: Jendrossek, Dieter
Publisher: name: Universität Stuttgart
Year: 2023
Subjects: subject: 570

description: Polyphosphate kinases (PPKs) catalyze the reversible transfer of the γ-phosphate moiety of ATP (or of another nucleoside triphosphate) to a growing chain of polyphosphate (polyP). In this study, we describe that PPKs of various sources are additionally able to phosphorylate thiamine diphosphate (ThP2) to produce thiamine triphosphate (ThP3) and even thiamine tetraphosphate in vitro using polyP as phosphate donor. Furthermore, all tested PPK2s, but not PPK1s, were able to phosphorylate thiamine monophosphate (ThP1) to ThP2 and ThP3 although at low efficiency. The predicted masses and identities of the mono- and oligo-phosphorylated thiamine metabolites were identified by high-performance liquid chromatography tandem mass spectrometry. Moreover, the biological activity of ThP2, that was synthesized by phosphorylation of ThP1 with polyP and PPK, as a cofactor of ThP2-dependent enzymes (here transketolase TktA from Escherichia coli ) was confirmed in a coupled enzyme assay. Our study shows that PPKs are promiscuous enzymes in vitro that could be involved in the formation of a variety of phosphorylated metabolites in vivo.
Additional file 1: of Critical appraisal of international guidelines for the screening and treatment of asymptomatic peripheral artery disease: a systematic review
Creators: name: Chen, Qinchang
name: Li, Lingling
name: Chen, Qingui
name: Lin, Xixia
name: Li, Yonghui
name: Huang, Kai
name: Yao, Chen
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Chemical Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences

description: Table S1. Search strategies. (DOCX 17 kb)
Birational automorphisms of a three-dimensional double quadric with an elementary singularity
Creators: name: Grinenko, Mikhail
Publisher: name: arXiv
Year: 1998
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14E07; 14J20

description: It is proved that the group of birational automorphisms of a three-dimensional double quadric with a singular point arising from a double point on the branch divisor is a semidirect product of the free group generated by birational involutions of a special form and the group of regular automorphisms. The proof is based on the method of `untwisting' maximal singularities of linear systems.
description: 18 pages
title: Geum urbanum
title: Echte Nelkenwurz (Geum urbanum)
titleType: AlternativeTitle
Creators: name: Schulz, Herbert
Publisher: name: Universitätsbibliothek Braunschweig
Year: 2006
Subjects: subject: Diasammlung Herbert Schulz
subject: 580

description: Enthält 5 Bilder des Echten Nelkenwurzes.
Spectral and Steady-State Properties of Random Liouvillians
Creators: name: Sá, Lucas
name: Ribeiro, Pedro
name: Prosen, Tomaž
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We study generic open quantum systems with Markovian dissipation, focusing on a class of stochastic Liouvillian operators of Lindblad form with independent random dissipation channels (jump operators) and a random Hamiltonian. We establish that the global spectral features, the spectral gap, and the steady-state properties follow three different regimes as a function of the dissipation strength, whose boundaries depend on the particular quantity. Within each regime, we determine the scaling exponents with the dissipation strength and system size. We find that, for two or more dissipation channels, the spectral gap increases with the system size. The spectral distribution of the steady state is Poissonian at low dissipation strength and conforms to that of a random matrix once the dissipation is sufficiently strong. Our results can help to understand the long-time dynamics and steady-state properties of generic dissipative systems.
description: 21 pages, 11 figures. v2: minor corrections. v3: additional details, as published
title: Geum montanum
title: Berg-Nelkenwurz (Geum montanum)
titleType: AlternativeTitle
Creators: name: Schulz, Herbert
Publisher: name: Universitätsbibliothek Braunschweig
Year: 2006
Subjects: subject: Diasammlung Herbert Schulz
subject: 580

description: Enthält 12 Bilder des Berg-Nelkenwurzes.
Large Fermi surface in pristine kagome metal CsV$_3$Sb$_5$ and enhanced quasiparticle effective masses
Creators: name: Zhang, Wei
name: Poon, Tsz Fung
name: Tsang, Chun Wai
name: Wang, Wenyan
name: Liu, X.
name: Xie, J.
name: Lam, S. T.
name: Wang, Shanmin
name: Lai, Kwing To
name: Pourret, A.
name: Seyfarth, G.
name: Knebel, G.
name: Yu, Wing Chi
name: Goh, Swee K.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The kagome metal CsV$_3$Sb$_5$ is an ideal platform to study the interplay between topology and electron correlation. To understand the fermiology of CsV$_3$Sb$_5$, intensive quantum oscillation (QO) studies at ambient pressure have been conducted. However, due to the Fermi surface reconstruction by the complicated charge density wave (CDW) order, the QO spectrum is exceedingly complex, hindering a complete understanding of the fermiology. Here, we directly map the Fermi surface of the pristine CsV$_3$Sb$_5$ by measuring Shubnikov-de Haas QOs up to 29 T under pressure, where the CDW order is completely suppressed. The QO spectrum of the pristine CsV$_3$Sb$_5$ is significantly simpler than the one in the CDW phase, and the detected oscillation frequencies agree well with our density functional theory calculations. In particular, a frequency as large as 8,200 T is detected. Pressure-dependent QO studies further reveal a weak but noticeable enhancement of the quasiparticle effective masses on approaching the critical pressure where the CDW order disappears, hinting at the presence of quantum fluctuations. Our high-pressure QO results reveal the large, unreconstructed Fermi surface of CsV$_3$Sb$_5$, paving the way to understanding the parent state of this intriguing metal in which the electrons can be organized into different ordered states.
description: 4 figures, 1 table. This is the preprint of a published paper in PNAS
Concentration of measure, classification of submeasures, and dynamics of $L_{0}$
Creators: name: Schneider, Friedrich Martin
name: Solecki, Sławomir
Publisher: name: arXiv
Year: 2019
Subjects: subject: Probability (math.PR)
subject: Dynamical Systems (math.DS)
subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 60E15, 28A60, 43A07, 54H15

description: Exhibiting a new type of measure concentration, we prove uniform concentration bounds for measurable Lipschitz functions on product spaces, where Lipschitz is taken with respect to the metric induced by a weighted covering of the index set of the product. Our proof combines the Herbst argument with an analogue of Shearer's lemma for differential entropy. We give a quantitative "geometric" classification of diffuse submeasures into elliptic, parabolic, and hyperbolic. We prove that any non-elliptic submeasure (for example, any measure, or any pathological submeasure) has a property that we call covering concentration. Our results have strong consequences for the dynamics of the corresponding topological $L_{0}$-groups.
Linear repetitivity, I. Uniform subadditive ergodic theorems and applications
Creators: name: Damanik, David
name: Lenz, Daniel
Publisher: name: arXiv
Year: 2000
Subjects: subject: Dynamical Systems (math.DS)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 52C23, 37A30, 37B50

description: This paper is concerned with the concept of linear repetitivity in the theory of tilings. We prove a general uniform subadditive ergodic theorem for linearly repetitive tilings. This theorem unifies and extends various known (sub)additive ergodic theorems on tilings. The results of this paper can be applied in the study of both random operators and lattice gas models on tilings.
description: 15 pages
Validating fast-ion wall-load IR analysis-methods against W7-X NBI empty-torus experiment
Creators: name: Äkäslompolo, S.
name: Drewelow, P.
name: Gao, Y.
name: Ali, A.
name: Asunta, O.
name: Bozhenkov, S.
name: Fellinger, J.
name: Ford, O. P.
name: Harder, N. den
name: Hartmann, D.
name: Jakubowski, M.
name: McNeely, P.
name: Niemann, H.
name: Pisano, F.
name: Rust, N.
name: Sitjes, A. Puig
name: Sleczka, M.
name: Spanier, A.
name: Wolf, R. C.
name: Team, the W7-X
Publisher: name: arXiv
Year: 2019
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: The first neutral beam injection (NBI) experiments in Wendelstein 7-X (W7-X) stellarator were conducted in the summer of 2018. The NBI system is used to heat the magnetically confined plasma by neutralising an accelerated hydrogen ion beam and directing it into the plasma, where the resulting energetic ions release their energy to heat the plasma. The modelling of the NBI fast ion experiments has commenced, including estimation of the shine-through and the orbit-losses. The stellarator has a wide-angle infra red (IR) imaging system to monitor the machine plasma facing component surface temperatures. This work validates the NBI model "Beamlet Based NBI (BBNBI)" and the newly written synthetic IR camera model. The validation is accomplished by comparing the measured and the synthetic IR camera measurements of an experiment where the NBI was injected into the vacuum vessel without a plasma. A good qualitative and quantitative match was found. This agreement is further supported by spectroscopic and calibration measurements of the NBI and and IR camera systems.
title: Geum reptans
title: Kriechende Nelkenwurz (Geum reptans)
titleType: AlternativeTitle
Creators: name: Schulz, Herbert
Publisher: name: Universitätsbibliothek Braunschweig
Year: 2006
Subjects: subject: Gletscher-Petersbart
subject: Diasammlung Herbert Schulz
subject: 580

description: Enthält 3 Bilder des Kriechenden Nelkenwurzes.
title: Geum rivale
title: Bach-Nelkenwurz (Geum rivale)
titleType: AlternativeTitle
Creators: name: Schulz, Herbert
Publisher: name: Universitätsbibliothek Braunschweig
Year: 2006
Subjects: subject: Diasammlung Herbert Schulz
subject: 580

description: Enthält 10 Bilder des Bach-Nelkenwurzes.