cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Advancing the Power & Utility of Server-Side Aggregation
Creators: name: Fulker, Dave
name: Gallagher, James
Publisher: name: Zenodo
Year: 2015

description: This presentation was given at the 2015 ESIP Summer meeting in Pacific Grove, CA on July 16. The Session was called: "Advancing the Power and Utility of Server-Side Aggregation". Summary of the presentation: 

This presentation introduces four panelists who will speak about advancements in server-side aggregation to improve the utility of data systems and needs-driven aggregations of granules within data systems, as well as other topics. 

This opening presentaton intoduced OPeNDAP concepts, highlighting OPeNDAP's role in dataset descriptions and content retrieval, with a focus on flexible data typing and support for arrays and tables. The motivation to enhance multi-granule aggregation was discussed, noting that while many servers allow virtual aggregations of similar granules, users couldn't choose granules to be aggregated, and array- and table-style subsetting couldn't be mixed.

Recent work on multi-granule aggregation in OpenDAP was presented, showcasing outcomes such as the ability to acquire data from thousands of files with one request using HTTP POST. Aggregation responses include zipped netCDF files and concatenated tables (CSV), with arrays aggregated as concatenated tables.

Abstract/Agenda:

Tying this session to the overall ESIP-Summer-Meeting theme of "data-driven community resilience," we enlist speakers with expertise on: the diverse ways that large collections of data granules can now or potentially be used for scientific, economic or societal advancement.

We specifically will aim to enlist speakers from communities where important needs for data (such as very long time series, e.g.) may be orthogonal to how the data are collected and stored.

To set the stage for discussion, we describe new OpenDAP aggregation features (developed for NASA/ESDIS) that we think may open doors to unprecedented forms of data-mining and statistical supports for resiliency.
Tango knock-ins visualize endogenous activity of G protein-coupled receptors in Drosophila
Creators: name: Katow, Hidetaka
name: Takahashi, Takahiro
name: Saito, Kuniaki
name: Hiromu Tanimoto
name: Kondo, Shu
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biophysics
subject: Biochemistry
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Neuroscience
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Science Policy
subject: 69999 Biological Sciences not elsewhere classified

description: G protein-coupled receptors (GPCRs) represent a family of seven-pass transmembrane protein receptors whose ligands include neuropeptides and small-molecule neuromodulators such as dopamine and serotonin. These neurotransmitters act at long distances and are proposed to define the ground state of the nervous system. The Drosophila genome encodes approximately 50 neuropeptides and their functions in physiology and behavior are now under intensive studies. Key information currently lacking in the field is the spatiotemporal activation patterns of endogenous GPCRs. Here we report application of the Tango system, a reporter assay to detect GPCR activity, to endogenous GPCRs in the fly genome. We developed a method to integrate the sensor component of the Tango system to the C-terminus of endogenous genes by using genome editing techniques. We demonstrate that Tango sensors in the Sex-peptide receptor (SPR) locus allow sensitive detection of mating-dependent SPR activity in the female reproductive organ. The method is easily applicable to any GPCR and will provide a way to systematically characterize GPCRs in the fly brain.
Tidal Stabilization of Rigidly Rotating, Fully Relativistic Neutron Stars
Creators: name: Thorne, Kip S.
Publisher: name: arXiv
Year: 1997
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: It is shown analytically that an external tidal gravitational field increases the secular stability of a fully general relativistic, rigidly rotating neutron star that is near marginal stability, protecting it against gravitational collapse. This stabilization is shown to result from the simple fact that the energy $δM(Q,R)$ required to raise a tide on such a star, divided by the square of the tide's quadrupole moment $Q$, is a decreasing function of the star's radius $R$, $(d/dR)[δM(Q,R)/Q^2]<0$ (where, as $R$ changes, the star's structure is changed in accord with the star's fundamental mode of radial oscillation). If $(d/dR)[δM(Q,R)/Q^2]$ were positive, the tidal coupling would destabilize the star. As an application, a rigidly rotating, marginally secularly stable neutron star in an inspiraling binary system will be protected against secular collapse, and against dynamical collapse, by tidal interaction with its companion. The ``local-asymptotic-rest-frame'' tools used in the analysis are somewhat unusual and may be powerful in other studies of neutron stars and black holes interacting with an external environment. As a byproduct of the analysis, in an appendix the influence of tidal interactions on mass-energy conservation is elucidated.
description: Revtex, 10 pages, 2 figures; accepted for publication in Physical Review D. Revisions: Appendix rewritten to clarify how, in Newtonian gravitation theory, ambiguity in localization of energy makes interaction energy ambiguous but leaves work done on star by tidal gravity unambiguous. New footnote 1 and Refs. [11] and [19]
Structural Studies of the Fungal pre-mRNA 3'-end Processing Machinery
Creators: Jurado, Ashley Rae
Publisher: name: Columbia University
Year: 2015
Subjects: Proteins
RNA splicing
Scission (Chemistry)
Messenger RNA
Molecular biology
Biology
Biochemistry

description: During mRNA synthesis, pre-mRNAs must be cleaved and polyadenylated at their 3'-end to be fully mature, before being exported from the nucleus. In yeast, there is a large protein machinery comprised of dozens of proteins that work together to perform these two reactions. Some of these proteins are capable of recognizing and binding key sequence elements in the pre-mRNA, effectively directing where in the transcript the cleavage and polyadenylation occur. In this thesis, recently reported structural findings related to the pre-mRNA 3'-end processing machinery are summarized. Within this machinery, the Cleavage Factor IA (CF-IA) complex is comprised of the Rna14, Rna15, and Pcf11 and Clp1 proteins. Results reported here include the crystal structure of the Rna14-Rna15 complex, which indicates that the Rna14 protein forms a dimer that has inherent conformational variability. The Rna15 protein binds to the C-terminal domain of Rna14, and is connected to the Rna14 HAT domain by a flexible linker, which may indicate that Rna15 functions somewhat independently of the Rna14 HAT domain. The complete CF-IA complex is explored in detail, including protein-protein interactions within the complex and the stoichiometric ratios of CF-IA components. Unlike previous reports, results indicate that CF-IA may form a dimer with a 2:2:2:2 stoichiometry of Rna14:Rna15:Clp1:Pcf11. Also reported are projects unrelated to CF-IA, including the crystal structure of the biotin-dependent alpha(6)beta(6) geranyl-CoA carboxylase (GCC) holoenzyme. Comparison of GCC to the closely related 3-methylcrotonyl CoA carboxylase (MCC) holoenzyme reveals a conserved domain swap in the carboxyltransferase (CT) domains of both enzymes. This domain swap is not present in the related biotin-dependent carboxylases propionyl-CoA carboxylase (PCC) and acetyl-CoA carboxylase (ACC), which may indicate a distinct lineage for biotin-dependent carboxylases that target the γ-carbon. In addition, comparison of the two structures also reveals a conserved Phe191 in MCC that is absent in GCC. Phe191 blocks a key substrate-binding pocket and explains the differences in substrate-specificities between MCC and GCC. The role of Phe191 is tested by site-directed mutagenesis to a Glycine to open the pocket in MCC and by mutating a structurally equivalent Glycine to Phe to close the pocket in GCC. These mutations can convert MCC to a GCC and vice versa.
Massive Neutron Stars with a Color Superconducting Quark Matter Core
Creators: name: Tanimoto, Takehiro
name: Bentz, Wolfgang
name: Cloët, Ian C.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We construct the equation of state for high density neutron star matter at zero temperature using the two-flavor Nambu--Jona-Lasinio (NJL) model as an effective theory of QCD. We build nuclear matter, quark matter, and the mixed phases from the same NJL Lagrangian, which has been used to model free and in-medium hadrons as well as nuclear systems. A focus here is to determine if the same coupling constants in the scalar diquark and vector meson channels, which give a good description of nucleon structure and nuclear matter, can also be used for the color superconducting high density quark matter phase. We find that this is possible for the scalar diquark (pairing) interaction, but the vector meson interaction has to be reduced so that superconducting quark matter becomes the stable phase at high densities. We compare our equation of state with recent phenomenological parametrizations based on generic stability conditions for neutron stars. We find that the maximum mass of a neutron star, with a color superconducting quark matter core, exceeds $2.01 \pm 0.04\,M_\odot$ which is the value of the recently observed massive neutron star PSR J0348+0432. The mass-radius relation is also consistent with gravitational wave observations (GW170817).
description: 11 pages, 7 figures
DGLAP evolution in the saturation model
Creators: name: Bartels, J.
name: Golec-Biernat, K.
name: Kowalski, H.
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A modification of the saturation model of deep inelastic scattering at small x which includes the Altarelli-Parisi (DGLAP) evolution is presented. Significant improvement of the description of the structure function F_2 at large Q^2 is achieved and a good description of diffractive data is preserved.
description: 5 pages. Presented at the X International Workshop on Deep Inelastic Scattering (DIS2002), Cracow, 30 April - 4 May 2002
Duosperma kilimandscharicum Dayton
Creators: name: Zhou, Ya-Dong
name: Mwachala, Geoffrey
name: Hu, Guang-Wan
name: Wang, Qing-Feng
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Lamiales
Acanthaceae
Duosperma
Duosperma kilimandscharicum

description: Duosperma kilimandscharicum (Lindau) Dayton  —
Habit: Shrub.
Habitat: LMDF; up to 2 100 m. Distribution: IIIa.
Voucher: N/A.
Reference: Fries & Fries (1926).
description: Published as part of Zhou, Ya-Dong, Mwachala, Geoffrey, Hu, Guang-Wan & Wang, Qing-Feng, 2022, Annotated checklist of the vascular plants of Mount Kenya, East Africa, pp. 1-108 in Phytotaxa 546 (1) on page 83, DOI: 10.11646/phytotaxa.546.1.1, http://zenodo.org/record/6550464
Risk-informed methodology for prioritizing responses associated with mine wasted
Creators: name: Fasking, Todd
name: Mohseni, Omid
name: Hansen, Tor
Publisher: name: The University of British Columbia
Year: 2017

description: Most mining incorporates processes that upgrade ore to increase value. As part of this processing, some type of waste is typically generated. Mine operation and waste management can present both physical and chemical risks that sometimes negatively affect stakeholders, social license, and/or a company’s financial health. This paper reviews some approaches to prioritize mitigation efforts presented by physical and chemical risks primarily associated with mine wastes. When looking at exposure risk associated with legacy sites, the prioritization process can account for a number of screening considerations, including chemicals present on site, receptor types, exposure pathways, stakeholder concerns, and mitigation net present value (NPV). Another prioritization method focuses on the physical risk presented by dams and impoundments. A risk-informed decision-making methodology can help companies prioritize assessments and remedial work by examining failure modes and the magnitudes of the failure outcomes. Our paper will present some case studies showing application of these methodologies.
Laurentia (Laurentina) ruficornis Malaise 1937
Creators: name: Taeger, Andreas
name: París, Mercedes
name: Nieves-Aldrey, Jose Luis
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Pyralidae
Laurentia
Laurentia ruficornis

description: Laurentia (Laurentina) ruficornis Malaise, 1937
A valid species, Aglaostigma (Neurosiobla) ruficorne (Malaise, 1937).
Types. Laurentia (Laurentina) ruficornis Malaise, 1937b: 46. Syntypes: 14 ♂, 8 ♀ “Burma: Yunnan frontier, alt. 2.000 m.; China, prov. Szechuan Tatsienlu and Koutchéou” Type locality: Myanmar: Kachin State: Kambaiti (ca. 25.399°N, 98.118°E). Syntype ♂ “N.E. Burma, Kambaiti, 26/4. R. Malaise ”. MNCN_Ent 100265, MNCN Cat. Tipos Nº 8142, http://dx.doi.org/10.6084/m9.figshare.850204.
Discussion. This specimen will be selected as paralectotype in the course of a study of Malaise’s types (Taeger & Vårdal, in prep.).
description: Published as part of Taeger, Andreas, París, Mercedes & Nieves-Aldrey, Jose Luis, 2014, The type specimens of sawflies (Hymenoptera: Symphyta) of the Museo Nacional de Ciencias Naturales, Madrid, pp. 103-138 in Zootaxa 3790 (1) on page 130, DOI: 10.11646/zootaxa.3790.1.5, http://zenodo.org/record/4914035
Structural and Climatic Effects of Large-Scale Basaltic Magmatism: Constraints and Insights from Geodynamic Models
Creators: Tian, Xiaochuan
Publisher: name: Columbia University
Year: 2021
Subjects: subject: Geophysics
subject: FOS: Earth and related environmental sciences
subject: Geology
subject: Paleoclimatology
subject: Lithosphere
subject: Magmatism--Mathematical models
subject: Global warming

description: This thesis concerns the causes and consequences of magma emplacement in the Earth’s lithosphere during the formation of Large Igneous Provinces (LIPs) and continental rifts. Motivated by geological, geophysical, geochemical and paleoclimate data, I formulate geodynamic models to address the following questions: (1) How were the massive volumes of subaerially erupted lava, described in multi-channel seismic data as seaward-dipping reflectors (SDRs), formed and what can SDRs tell us about the rifting processes? (2) What thermal and rheological conditions are required to produce the contrast in topography of the two youngest LIPs: namely that the Columbia Plateau sits ~0.7 km lower than the surrounding region while the Ethiopian Plateau is ~1.5 km higher than its surroundings? (3) Why does significant global warming occur a few hundred-thousand years prior to the main phase of eruptions of the Columbia River Basalts and the Deccan Traps? The major results of my thesis are: (1) The first two-dimensional thermo-mechanical treatment of SDR formation shows how the lithosphere thickness affects the deformation in response to magmatic loads during volcanic margin formation. I provide a quantitative mapping between the shape of SDRs and the strength of the lithosphere and this mapping reveals weak continental margin lithosphere during the initial continental breakup. (2) Cold and strong crust results in slow lower crustal flow and a persistent high plateau like the Ethiopian Plateau. In contrast, a combination of three things can produce a low plateau like the Columbia Plateau. First, hot and weak lower crust flows fast in response to topographic and magmatic loads. Second, a significant fraction of the magma intruded in the crust freezes onto and becomes part of the strong upper crust. Finally, the bulk of the intrusions occur before the main phase of extrusion to explain the geometry of the Columbia River Basalt lava flows. (3) I argue that the major eruptions of continental flood basalts may require densification of the crust by intrusion of larger volumes of magma than are extruded. Simple models show that magma crystallization and release of CO₂ from such intrusions could produce global warming before the main phase of flood basalt eruptions on the observed timescale.
Effect of organic chemistry pedagogies with PEOE, VH, and discussion strategies on students’ achievement in Ekiti State, Nigeria
Creators: name: Victor Oluwatosin Ajayi, PhD
name: Achor, Emmanuel Edoja
name: Otor, Emmanuel Eriba
Publisher: name: figshare
Year: 2020
Subjects: subject: Organic Chemistry
subject: FOS: Chemical sciences

description: The study investigated the effect of organic chemisty pedagogies with Predict-Explain-Observe-Explain (PEOE), Vee Heuristic (VH) and discussion strategies on students’ achievement. The study also investigated the interaction effect of treatments and gender on students’ achievement in Organic Chemistry in Ekiti State, Nigeria. The instrument used for data collection was Organic Chemistry Achievement Test (OCAT). Kuder-Richardson (KR-21) formula was used to test internal consistency of OCAT which yielded a reliability value of 0.94. A sample of 308 students comprising 174 boys and 134 girls drawn from 9 schools within 9 Local Government Areas (LGA) out of 16 LGA in the Ekiti State, Nigeria selected using multi-stage sampling techniques. Two research questions and two null hypotheses guided the study. The research questions were answered using Mean and Standard Deviation scores while the null hypotheses were tested at 0.05 level of significance using Analysis of Covariance (ANCOVA). The study revealed that PEOE and VH strategies significantly improved students’ achievement [F2, 307=255.284, P<0.05] than discussion strategy. It was also found that there was no significant interaction effect of treatments and gender on the mean achievement [F2, 307 =.085, P>0.050] of students in Organic Chemistry. It was recommended among others that since PEOE and VH strategies were found to be effective strategies for improving students’ achievement in Organic Chemistry; Chemistry teacher’s trainee should be trained on the use of PEOE and VH strategies and serving teachers should use it. The curriculum developers should use PEOE and VH strategies to develop and refine the Chemistry curriculum in general and Organic Chemistry in particular.
Dyschoriste multicaulis Kuntze
Creators: name: Zhou, Ya-Dong
name: Mwachala, Geoffrey
name: Hu, Guang-Wan
name: Wang, Qing-Feng
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Lamiales
Acanthaceae
Dyschoriste
Dyschoriste multicaulis

description: Dyschoriste multicaulis (Hochst. ex A.Rich.) Kuntze  —
Habit: Herb.
Habitat: LMDF; up to 2 500 m. Distribution: IIIa.
 Voucher: West Mount Kenya, Alt. 1 800 m, 18 Dec. 1921, Fries & Fries 53 (K).
References: Fries & Fries (1926), Bussmann (1994), Agnew (2013).
description: Published as part of Zhou, Ya-Dong, Mwachala, Geoffrey, Hu, Guang-Wan & Wang, Qing-Feng, 2022, Annotated checklist of the vascular plants of Mount Kenya, East Africa, pp. 1-108 in Phytotaxa 546 (1) on page 83, DOI: 10.11646/phytotaxa.546.1.1, http://zenodo.org/record/6550464
Semimartingale theory of monotone mean--variance portfolio allocation
Creators: name: Černý, Aleš
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mathematical Finance (q-fin.MF)
subject: Portfolio Management (q-fin.PM)
subject: FOS: Economics and business

description: We study dynamic optimal portfolio allocation for monotone mean--variance preferences in a general semimartingale model. Armed with new results in this area we revisit the work of Cui, Li, Wang and Zhu (2012, MAFI) and fully characterize the circumstances under which one can set aside a non-negative cash flow while simultaneously improving the mean--variance efficiency of the left-over wealth. The paper analyzes, for the first time, the monotone hull of the Sharpe ratio and highlights its relevance to the problem at hand.
description: (v4) updated bibliography
Phase Transition in the Number Partitioning Problem
Creators: name: Mertens, Stephan
Publisher: name: arXiv
Year: 1998
Subjects: subject: Condensed Matter (cond-mat)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Physical sciences

description: Number partitioning is an NP-complete problem of combinatorial optimization. A statistical mechanics analysis reveals the existence of a phase transition that separates the easy from the hard to solve instances and that reflects the pseudo-polynomiality of number partitioning. The phase diagram and the value of the typical ground state energy are calculated.
description: minor changes (references, typos and discussion of results)
The self-screening Hawking atmosphere
Creators: name: Hooft, G. 't
Publisher: name: arXiv
Year: 1997
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A model is proposed in which the Hawking particles emitted by a black hole are treated as an envelope of matter that obeys an equation of state, and acts as a source in Einstein's equations. This is a crude but interesting way to accommodate for the back reaction. For large black holes, the solution can be given analytically, if the equation of state is $p=κρ$, with $0
description: 19 pages, plain TeX, 5 figures PostScript. The author was made aware of further references to older work, in view of which modifications were made in order to avoid too much overlap. A discussion is added on the case $\kappa=1$
The Homunculus Brain and Categorical Logic
Creators: name: Heller, Michael
Publisher: name: arXiv
Year: 2019
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences
subject: 03-XX 03Cxx

description: The interaction between syntax (formal language) and its semantics (meanings of language) is one which has been well studied in categorical logic. The results of this particular study are employed to understand how the brain is able to create meanings. To emphasize the toy character of the proposed model, we prefer to speak of the homunculus brain rather than the brain per se. The homunculus brain consists of neurons, each of which is modeled by a category, and axons between neurons, which are modeled by functors between the corresponding neuron-categories. Each neuron (category) has its own program enabling its working, i.e. a theory of this neuron. In analogy to what is known from categorical logic, we postulate the existence of a pair of adjoint functors, called Lang and Syn, from a category, now called BRAIN, of categories, to a category, now called MIND, of theories. Our homunculus is a kind of ``mathematical robot'', the neuronal architecture of which is not important. Its only aim is to provide us with the opportunity to study how such a simple brain-like structure could ``create meanings'' and perform abstraction operations out of its purely syntactic program. The pair of adjoint functors Lang and Syn model the mutual dependencies between the syntactical structure of a given theory of MIND and the internal logic of its semantics given by a category of BRAIN. In this way, a formal language (syntax) and its meanings (semantics) are interwoven with each other in a manner corresponding to the adjointness of the functors Lang and Syn. Higher cognitive functions of abstraction and realization of concepts are also modelled by a corresponding pair of adjoint functors. The categories BRAIN and MIND interact with each other with their entire structures and, at the same time, these very structures are shaped by this interaction.
description: 21 pages, one diagram, no figures
Jet analysis by Deterministic Annealing
Creators: name: Angelini, L.
name: De Felice, P.
name: Maggi, M.
name: Nardulli, G.
name: Nitti, L.
name: Pellicoro, M.
name: Stramaglia, S.
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We perform a comparison of two jet clusterization algorithms. The first one is the standard Durham algorithm and the second one is a global optimization scheme, Deterministic Annealing, often used in clusterization problems, and adapted to the problem of jet identification in particle production by high energy collisions; in particular we study hadronic jets in WW production by high energy electron positron scattering. Our results are as follows. First, we find that the two procedures give basically the same output as far as the particle clusterization is concerned. Second, we find that the increase of CPU time with the particle multiplicity is much faster for the Durham jet clustering algorithm in comparison with Deterministic Annealing. Since this result follows from the higher computational complexity of the Durham scheme, it should not depend on the particular process studied here and might be significant for jet physics at LHC as well.
description: 15 pages, 4 figures
Dyschoriste radicans Nees
Creators: name: Zhou, Ya-Dong
name: Mwachala, Geoffrey
name: Hu, Guang-Wan
name: Wang, Qing-Feng
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Lamiales
Acanthaceae
Dyschoriste
Dyschoriste radicans

description: Dyschoriste radicans Nees  —
Habit: Herb.
Habitat: LMDF; up to 2 900 m. Distribution: I.
Voucher: N/A.
Reference: Fries & Fries (1926).
description: Published as part of Zhou, Ya-Dong, Mwachala, Geoffrey, Hu, Guang-Wan & Wang, Qing-Feng, 2022, Annotated checklist of the vascular plants of Mount Kenya, East Africa, pp. 1-108 in Phytotaxa 546 (1) on page 83, DOI: 10.11646/phytotaxa.546.1.1, http://zenodo.org/record/6550464
Studies of Bacterial Branching Growth using Reaction-Diffusion Models for Colonial Development
Creators: name: Golding, Ido
name: Kozlovsky, Yonathan
name: Cohen, Inon
name: Ben-Jacob, Eshel
Publisher: name: arXiv
Year: 1998
Subjects: subject: Condensed Matter (cond-mat)
subject: Pattern Formation and Solitons (nlin.PS)
subject: Biological Physics (physics.bio-ph)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Various bacterial strains exhibit colonial branching patterns during growth on poor substrates. These patterns reflect bacterial cooperative self-organization and cybernetic processes of communication, regulation and control employed during colonial development. One method of modeling is the continuous, or coupled reaction-diffusion approach, in which continuous time evolution equations describe the bacterial density and the concentration of the relevant chemical fields. In the context of branching growth, this idea has been pursued by a number of groups. We present an additional model which includes a lubrication fluid excreted by the bacteria. We also add fields of chemotactic agents to the other models. We then present a critique of this whole enterprise with focus on the models' potential for revealing new biological features.
description: 1 latex file, 40 gif/jpeg files (compressed into tar-gzip). Physica A, in press
Slurry to soil clay behaviour model : using methylene blue to cross the process / geotechnical engineering divide
Creators: name: Wells, Patrick Sean
name: Kaminsky, H. A. W.
Publisher: name: The University of British Columbia
Year: 2017

description: The models and formulae used to describe the behaviour of materials vary based on the history of the individuals and groups who defined the area of study. In the case of tailings behaviour, two main disciplines describe either end of the processes with very little in the way of common descriptors to bridge the base scientific and engineering principles. Process Engineering dominates the descriptions for tailings materials in their suspended solids or liquid slurry state. Based on various incarnations of rheology, including terms such as viscosity or yield stress, as well as material and chemical descriptors such as clay content, particle specific gravity, pH, and ionic concentration, all contribute to a well-defined behaviour model. Geotechnical Engineering dominates the descriptions for the same materials, once they have dewatered sufficiently to be described by the Terzaghi principle. Terms such as effective stress, pore water pressure, permeability, and coefficients of consolidation are used to monitor and predict the behaviour of these materials once deposited. Tailings engineering straddles these two disciplines and practitioners need to be fluent in both descriptions. However, these two areas do not readily translate and there are many cases where similar terms actually provide very different meaning (“water content” being one prime example). One area which could bridge the gap for clay-dominated tailings is through the methylene blue index (MBI) measurement and its clear correlation to rheology / strength, as well as correlations to liquid and plastic limits. This paper uses data from tailings in the oil sands of northeastern Alberta, Canada to show the relationship between MBI and the gradual transition from slurry to soil.
Solubility measurement, Hansen solubility parameters and solution thermodynamics of gemfibrozil in different pharmaceutically used solvents
Creators: name: Mohd Abul Kalam
name: Alshehri, Sultan
name: Aws Alshamsan
name: Musaed Alkholief
name: Raisuddin Ali
name: Faiyaz Shakeel
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Neuroscience
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Cancer
subject: Hematology
subject: Plant Biology

description: Gemfibrozil (GEM) is cholesterol-lowering agent which is being proposed as poorly water soluble drug (PWSD). Temperature based solubility values of GEM are not yet available in literature or any pharmacopoeia/monograph. Hence, the present studies were carried out to determine the solubility of PWSD GEM (as mole fraction) in various pharmaceutically used solvents such as water (H2O), methanol (MeOH), ethanol (EtOH), isopropanol (IPA), 1-butanol (1-BuOH), 2-butanol (2-BuOH), ethylene glycol (EG), propylene glycol (PG), polyethylene glycol-400 (PEG-400), ethyl acetate (EA), dimethyl sulfoxide (DMSO) and Transcutol® (THP) at the temperatures ranging from T = 298.2 K–318.2 K under atmospheric pressure P = 0.1 MPa. Equilibrium/experimental solubilities of GEM were recorded by applying a saturation shake flask methodology and regressed using ‘van’t Hoff and Apelblat models’. Hansen solubility parameters for GEM and various pharmaceutically used solvents were estimated using HSPiP software. The solid states of GEM (both in pure and equilibrated states) were studied by ‘Differential Scanning Calorimetry’ which confirmed no transformation of GEM after equilibrium. Experimental solubilities of GEM in mole fraction were observed maximum in THP (1.81 × 10−1) followed by DMSO, PEG-400, EA, 1-BuOH, 2-BuOH, IPA, EtOH, PG, MeOH, EG and H2O (3.24 × 10−6) at T = 318.2 K and similar tendencies were also recorded at T = 298.2 K, T = 303.2 K, T = 308.2 K and T = 313.2 K. ‘Apparent thermodynamic analysis’ on experimental solubilities furnished ‘endothermic and entropy-driven dissolution’ of GEM in each pharmaceutically used solvent.
title: Regelungstechnik zwischen Mikro- und Makroelektronik
Creators: name: Leonhard, Werner
Publisher: name: Goltze
Year: 1984
Subjects: subject: Brunsvicensien der Universitätsbibliothek Braunschweig
subject: Jahrbuch der BWG
subject: 62

description: Der heutige Tag steht im Zeichen der Halbleitertechnik, die sich als ein autonomer Bereich zwischen den in der Elektrotechnik vorher dominierenden Gebieten der elektrischen Leiter und Isolatoren etabliert hat. Das Besondere an Halbleiter-Bauteilen ist, daß sie elektronisch, d.h. sehr schnell, fast leistungslos und verschleißfrei steuerbar sind, wobei sie ihren elektrischen Widerstand um bis zu 8 Größenordnungen verändern, also wahlweise einen Nichtleiter und einen Leiter darstellen können. Halbleiterbauelemente sind deshalb äußerst vielseitig verwendbar, die Elektronikindustrie gilt inzwischen als die bedeutendste Wachstumsindustrie der 80er Jahre mit Ausstrahlungen in alle Gebiete der Technik. Angesichts der zu überwindenden physikalischen und technologischen Probleme wird der Stand der Halbleiter-Industrie manchmal als repräsentativ für den gesamten technischen Stand eines Industrielandes angesehen. Dies ist sicher eine einseitige Betrachtungsweise, hinter der man auch wirtschaftspsychologische Suggestion vermuten kann, doch hat die Sorge, hier gegenüber Amerika und Japan auf Dauer zurückzufallen, inzwischen auch in den klassischen europäischen Industrieländern zur Entfaltung ungeahnter Energien geführt, mit dem Ziel, den wirklichen und vermeintlichen Rückstand aufzuholen.
Da die Vorträge des heutigen Tages im wesentlichen die physikalischen Grundlagen der Halbleitertechnik betreffen, erschien es sinnvoll, in einem ergänzenden Bericht auch Anwendungen der Halbleitertechnik zu behandeln; die Regelungstechnik ist dafür besonders geeignet, da sie im Schnittpunkt von Mikroelektronik und Leistungselektronik, den bei den Hauptlinien der Halbleitertechnik, steht, so daß sie von deren Entwicklung unmittelbar betroffen ist.
Spectrum of the Multi-Reggeon Compound States in Multi-Colour QCD
Creators: name: Kotanski, Jan
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the properties of the colour-singlet compound states of reggeized gluons in multi-colour QCD. Applying the methods of integrable models, we calculate their spectrum and discuss the application of the obtained results to high-energy asymptotics of the scattering amplitudes in perturbative QCD.
description: 5 pages, 4 figures, Presented at the X International Workshop on Deep Inelastic Scattering (DIS2002)
Diffractive vector mesons at large momentum transfer from the BFKL equation
Creators: name: Enberg, R.
name: Motyka, L.
name: Poludniowski, G.
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Diffractive vector meson photoproduction accompanied by proton dissociation is studied for large momentum transfer. The process is described by the non-forward BFKL equation, for which an analytical solution is found for all conformal spins, giving the scattering amplitude. Results are compared to HERA data on rho production.
description: 5 pages, 2 figures. Presented at X International Workshop on Deep Inelastic Scattering (DIS2002) Cracow, May 2002
Topological Ultranodal pair states in iron-based superconductors
Creators: name: Setty, Chandan
name: Bhattacharyya, Shinibali
name: Cao, Yifu
name: Kreisel, Andreas
name: Hirschfeld, P. J.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Bogoliubov Fermi surfaces are contours of zero-energy excitations that are protected in the superconducting state. Here we show that multiband superconductors with dominant spin singlet, intraband pairing of spin-1/2 electrons can undergo a transition to a state with Bogoliubov Fermi surfaces if spin-orbit coupling, interband pairing and time reversal symmetry breaking are also present. These latter effects may be small, but drive the transition to the topological state for appropriate nodal structure of the intra-band pair. Such a state should display nonzero zero-bias density of states and corresponding residual Sommerfeld coefficient as for a disordered nodal superconductor, but occurring even in the pure case. We present a model appropriate for iron-based superconductors where the topological transition associated with creation of a Bogoliubov Fermi surface can be studied. The model gives results that strongly resemble experiments on FeSe$_{1-x}$S$_x$ across the nematic transition, where this ultranodal behavior may already have been observed.
description: 7 pages, 2 figures
Hypoestes aristata Roem. & Schult.
Creators: name: Zhou, Ya-Dong
name: Mwachala, Geoffrey
name: Hu, Guang-Wan
name: Wang, Qing-Feng
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Lamiales
Acanthaceae
Hypoestes
Hypoestes aristata

description: Hypoestes aristata (Vahl) Roem. & Schult.  —
Habit: Herb.
Habitat: LMWF, LMDF; up to 3 300 m. Distribution: II.
 Voucher: Naro Moru Track, Alt. 2 450 m, 13 Mar. 1973, Jonsson 579 (EA).
References: Fries & Fries (1926), Bussmann (1993, 1994), Bussmann & Beck (1995a 1998, 1999), Agnew (2013).
description: Published as part of Zhou, Ya-Dong, Mwachala, Geoffrey, Hu, Guang-Wan & Wang, Qing-Feng, 2022, Annotated checklist of the vascular plants of Mount Kenya, East Africa, pp. 1-108 in Phytotaxa 546 (1) on page 83, DOI: 10.11646/phytotaxa.546.1.1, http://zenodo.org/record/6550464
Structural and Functional Studies of Biotin-Dependent Carboxylases
Creators: Huang, Christine S.
Publisher: name: Columbia University
Year: 2013
Subjects: Biochemistry
Biophysics

description: A persisting question in biology concerns the exceptional diversity of metabolic enzymes and how they respond to their ligands and dynamic environments with remarkable precision. In humans, the family of biotin-dependent carboxylases holds important roles in intermediary metabolism. Recent years have witnessed significant progress toward understanding these enzymes' roles in homeostatic regulation. However, due to a lack of structural information, their catalytic mechanisms, as well as the macromolecular consequences of their genetic mutations, are still not well understood. This dissertation describes the characterization of two biotin-dependent carboxylases that catalyze essential metabolic transformations in humans and bacteria, using X-ray crystallography to elucidate their structures and biochemical assays to verify their activities. We engineer a novel chimeric variant of propionyl-CoA carboxylase (PCC) and produce the first crystal structure of its 750-kDa α6β6 holoenzyme. This structure reveals the architecture of PCC's twelve catalytic domains and allows the mapping of its disease-associated gene mutations to predict their effects on enzyme stability and catalysis. We also identify and describe a new domain that is integral to maintaining inter-subunit contacts within PCC. Following this, we extend our studies to methylcrotonyl-CoA carboxylase (MCC), another 750-kDa α6β6 holoenzyme that differs from PCC primarily in its substrate preference. The crystal structure of MCC assumes a markedly different configuration from PCC despite the high sequence identity between the two. Theorizing that these enzymes may represent unique lineages in the evolution of the biotin-dependent carboxylases, we apply similar approaches to the study of a third biotin-dependent carboxylase. Our efforts have produced the first two holoenzyme structures of CoA-recognizing biotin-dependent carboxylases, and provide valuable insight for understanding the functions of these vital enzymes.
Cache-as-a-Service for client-side cloud caching: Models and system
Creators: name: Chaturong Sriwiroj
name: Thepparit Banditwattanawong
Publisher: name: Research and Development Office, Prince of Songkla University
Year: 2019
Subjects: cloud computing
Cache-as-a-Service
economic service model
technical service model

description: Songklanakarin Journal of Science and Technology, 41, 4, 828-837
On the KO-groups of toric manifolds
Creators: name: Cai, Li
name: Choi, Suyoung
name: Park, Hanchul
Publisher: name: arXiv
Year: 2019
Subjects: subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics

description: In this paper we consider the real topological K-groups of a toric manifold M, which turns out to be closely related to the topology of the small cover MR, the fixed points under the canonical conjugation on M . Following the work of Bahri and Bendersky [2], we give an explicit formula for the KO-groups of toric manifolds, and then we characterize the two extreme classes of toric manifolds according to the two A(1) modules shown in [2].
description: 17 pages
New Impedance Based Methodologies to Determine the Vial Heat Transfer Coefficient. Poster presentation at UK-PharmSci, 5-7th September 2017, Hatfield, UK
Creators: name: Pandya, Bhaskar
name: Smith, Geoff
Publisher: name: De Montfort University
Year: 2020
Subjects: subject: 111504 Pharmaceutical Sciences
subject: FOS: Clinical medicine

description: Cite as:Pandya et al. (2017). New Impedance Based Methodologies to Determine the Vial Heat Transfer Coefficient. Poster presentation at UK-PharmSci, 5-7th September 2017, Hatfield, UK
Aims: To propose a new methodology to determine the vial heat transfer coefficient (Kv) and the endpoint of primary drying. Methods: Convergence of the peak imaginary capacitance (C"PEAK) and the high frequency permittivity, C'(100 kHz) was used as a new method to calculate the drying rate and Kv and the time profile of C'(100 kHz) was used to determine the endpoint. Results: Convergence was true only within the first 5 % of ice sublimation; C'(100 kHz) plateau coincided with the visual endpoint; Conclusions: Kv should be calculated only within the first 5% of primary drying and C'(100 kHz) can be followed to detect the endpoint.
D7.4 Blueprint of the national and the pan-European H2O Observatories
Creators: name: Long, Preston
name: Andrews, Margaret R
name: Thwaites, Rob
name: Stamm, Tanja
name: H2O Consortium
Publisher: name: Zenodo
Year: 2023
Subjects: outcomes research
health data
Patient-reported outcomes
value-based health care

description: The Health Outcomes Observatory (H2O) project will equip patients with tools to measure their outcomes in a standardised way, while giving them control of their data. It is the first-ever attempt at scale to collect and incorporate patient outcomes into health care decision making at an individual and population level. The purpose of the blueprint is to compile H2O approaches related to establishing and/or expanding the H2O model, developed within different work streams, and to provide guidance on how these can be applied. As new countries, new data sources, new diseases and new technology partners are brought into the H2O network, this blueprint can help steer future collaborators. As we are already starting to expand beyond the initial four countries, it is critical that we have a documented approach that can be used not only for any expansion during the remaining years of IMI funding but also for the management of the growth of the network once this becomes fully independent. This deliverable includes three primary blueprints, 1) on the development of a new data collection site, 2) on the addition of a new technology provider, and 3) on the inclusion of a new H2O accredited disease outcome set.
Whole genome sequencing of 4 citrus plants
Creators: name: 余歆(Xin Yu)
Publisher: name: CNGB
Year: 2021
Subjects: Genome sequencing
Multiisolate
Agricultural

description: Four varieties of citrus plants including Ehime Kashi No. 28, Haruka, Yangguang No. 1 and Yangguang No. 2 were whole-genome re-sequenced. Yangguang No. 1 and Yangguang No. 2 are sibling tangelos from the cross of Ehime Kashi No. 28 as seed parent and Haruka as pollen parent.
Modelling Sonoluminescence
Creators: name: Chodos, Alan
name: Groff, Sarah
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Chaotic Dynamics (nlin.CD)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In single-bubble sonoluminescence, a bubble trapped by a sound wave in a flask of liquid is forced to expand and contract; exactly once per cycle, the bubble emits a very sharp ($< 50 ps$) pulse of visible light. This is a robust phenomenon observable to the naked eye, yet the mechanism whereby the light is produced is not well understood. One model that has been proposed is that the light is "vacuum radiation" generated by the coupling of the electromagnetic fields to the surface of the bubble. In this paper, we simulate vacuum radiation by solving Maxwell's equations with an additional term that couples the field to the bubble's motion. We show that, in the static case originally considered by Casimir, we reproduce Casimir's result. In a simple purely time-dependent example, we find that an instability occurs and the pulse of radiation grows exponentially. In the more realistic case of spherically-symmetric bubble motion, we again find exponential growth in the context of a small-radius approximation.
description: Expanded introduction, appendix on duality, 18 pages, plain TeX
Quantum search on Hanoi network
Creators: name: Giri, Pulak Ranjan
name: Korepin, Vladimir
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Hanoi network has a one-dimensional periodic lattice as its main structure with additional long-range edges, which allow having efficient quantum walk algorithm that can find a target state on the network faster than the exhaustive classical search. In this article, we use regular quantum walks and lackadaisical quantum walks respectively to search for a target state. From the curve fitting of the numerical results for Hanoi network of degree three and four we find that their running time for the regular quantum walks followed by amplitude amplification scales as $\mathcal{O}\left(N^{0.79} \sqrt{\log N}\right)$ and $\mathcal{O}\left(N^{0.65} \sqrt{\log N}\right)$ respectively. And for the search by lackadaisical quantum walks the running time scales as $\mathcal{O}\left(N^{0.57}\log N\right)$ and $\mathcal{O}\left(N^{0.50}\log N\right)$ respectively.
description: 8 pages, 4 figures, accepted version
The effect of rheological properties on pyroelectrodynamic jets
Creators: name: Tammaro, Daniele
name: Rega, Romina
name: Itri, Simona
name: V. Tkachenko
name: Vespini, Veronica
name: Coppola, Sara
name: Ferraro, Pietro
name: Grilli, Simonetta
name: P. L. Maffettone
Publisher: name: Zenodo
Year: 2021
Subjects: pyroelectrodynamic ,rheological properties

description: The effect of rheological properties on pyroelectrodynamic jets
Hypoestes forsskaolii R. Br.
Creators: name: Zhou, Ya-Dong
name: Mwachala, Geoffrey
name: Hu, Guang-Wan
name: Wang, Qing-Feng
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Lamiales
Acanthaceae
Hypoestes
Hypoestes forsskaolii

description: Hypoestes forsskaolii (Vahl) R.Br.  —
Habit: Herb.
Habitat: LMDF; up to 2 900 m. Distribution: I.
 Voucher: Between Mount Kenya and Highway A2, 11 Jan. 1975, Croat 28255 (WAG).
Reference: Agnew (2013).
description: Published as part of Zhou, Ya-Dong, Mwachala, Geoffrey, Hu, Guang-Wan & Wang, Qing-Feng, 2022, Annotated checklist of the vascular plants of Mount Kenya, East Africa, pp. 1-108 in Phytotaxa 546 (1) on page 83, DOI: 10.11646/phytotaxa.546.1.1, http://zenodo.org/record/6550464
Code and data for Leveraging Large Language Models for Tacit Knowledge Discovery in Organizational Contexts
Creators: name: Zuin, Gianlucca
Publisher: name: figshare
Year: 2025
Subjects: classificationCode: 470102
subject: Communication technology and digital media studies
classificationCode: 441007
subject: Sociology and social studies of science and technology
classificationCode: 460208
subject: Natural language processing
classificationCode: 460202
subject: Autonomous agents and multiagent systems

description: Data and code for easy reproducibility of results described in the paper Leveraging Large Language Models for Tacit Knowledge Discovery in Organizational Contexts, published on the International Joint Conference on Neural Networks (IJCNN) 2025.Please see the paper for the full author list and more details.