cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Exploiting Scratchpad Memory for Deep Temporal Blocking: A case study for 2D Jacobian 5-point iterative stencil kernel (j2d5pt)
Creators: name: Zhang, Lingqi
name: Wahib, Mohamed
name: Chen, Peng
name: Meng, Jintao
name: Wang, Xiao
name: Endo, Toshio
name: Matsuoka, Satoshi
Publisher: name: arXiv
Year: 2023
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: General Purpose Graphics Processing Units (GPGPU) are used in most of the top systems in HPC. The total capacity of scratchpad memory has increased by more than 40 times in the last decade. However, existing optimizations for stencil computations using temporal blocking have not aggressively exploited the large capacity of scratchpad memory. This work uses the 2D Jacobian 5-point iterative stencil as a case study to investigate the use of large scratchpad memory. Unlike existing research that tiles the domain in a thread block fashion, we tile the domain so that each tile is large enough to utilize all available scratchpad memory on the GPU. Consequently, we process several time steps inside a single tile before offloading the result back to global memory. Our evaluation shows that our performance is comparable to state-of-the-art implementations, yet our implementation is much simpler and does not require auto-generation of code.
description: This is short paper is published in the 15th workshop on general purpose processing using GPU (GPGPU 2023)
Multiscale principal component analysis
Creators: name: Akinduko, A. A.
name: Gorban, A. N.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: Principal component analysis (PCA) is an important tool in exploring data. The conventional approach to PCA leads to a solution which favours the structures with large variances. This is sensitive to outliers and could obfuscate interesting underlying structures. One of the equivalent definitions of PCA is that it seeks the subspaces that maximize the sum of squared pairwise distances between data projections. This definition opens up more flexibility in the analysis of principal components which is useful in enhancing PCA. In this paper we introduce scales into PCA by maximizing only the sum of pairwise distances between projections for pairs of datapoints with distances within a chosen interval of values [l,u]. The resulting principal component decompositions in Multiscale PCA depend on point (l,u) on the plane and for each point we define projectors onto principal components. Cluster analysis of these projectors reveals the structures in the data at various scales. Each structure is described by the eigenvectors at the medoid point of the cluster which represent the structure. We also use the distortion of projections as a criterion for choosing an appropriate scale especially for data with outliers. This method was tested on both artificial distribution of data and real data. For data with multiscale structures, the method was able to reveal the different structures of the data and also to reduce the effect of outliers in the principal component analysis.
description: 24 pages, 22 figures
Megalomys desmarestii
Creators: name: Musser, Guy G.
name: Carleton, Michael D.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Rodentia
Muridae
Megalomys
Megalomys desmarestii

description: Megalomys desmarestii (Fischer, 1829). Synopsis Mamm., p. 316. TYPE LOCALITY: Lesser Antilles, Martinique. DISTRIBUTION: Known only from the type locality. STATUS: Extinct. SYNONYMS: pilorides (of Desmarest, 1826).
description: Published as part of Guy G. Musser & Michael D. Carleton, 1993, Order Rodentia - Family Muridae, pp. 501-755 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 707, DOI: 10.5281/zenodo.7353098
Genetic disruption of nucleoside transporter 4 reveals its critical roles in malaria parasite sporozoite functions
Creators: name: Deveci, Gozde
name: Kamil, Mohd
name: Kina, Umit
name: Temel, Binnur Aydogan
name: Aly, Ahmed S. I.
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: All protozoan parasites are lacking the pathway to synthesize purines de novo and therefore they depend on their host cells to provide purines. A number of highly conserved nucleoside transporter (NT) proteins are encoded in malaria parasite genomes, of which NT1 is characterized in Plasmodium falciparum and P. yoelii as a plasma membrane protein that is responsible for salvage of purines from the host, and NT2 is an endoplasmic membrane NT protein. Whereas NT3 is only present in primate malaria parasites, little is known about NT4, which is conserved in all malaria parasite species. Herein, we targeted NT4 gene for deletion in P. berghei. NT4 knockout parasites developed normally as blood stages, ookinetes and formed oocysts with sporozoites compared with wild-type (WT) P. berghei ANKA parasites. However, nt4(-) sporozoites showed significantly decreased egress from oocysts to hemolymph, significant reduction of colonization of the salivary glands, and complete abolishment of infection of the mammalian host by salivary gland and hemolymph sporozoites. Therefore, we identify NT4 as a NT that is important, not for replication and growth, but for sporozoite infectivity functions.
Scaling of entanglement entropy in the (branching) multi-scale entanglement renormalization ansatz
Creators: name: Evenbly, Glen
name: Vidal, Guifre
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate the scaling of entanglement entropy in both the multi-scale entanglement renormalization ansatz (MERA) and in its generalization, the branching MERA. We provide analytical upper bounds for this scaling, which take the general form of a boundary law with various types of multiplicative corrections, including power-law corrections all the way to a bulk law. For several cases of interest, we also provide numerical results that indicate that these upper bounds are saturated to leading order. In particular we establish that, by a suitable choice of holographic tree, the branching MERA can reproduce the logarithmic multiplicative correction of the boundary law observed in Fermi liquids and spin-Bose metals in $D\geq 2$ dimensions.
description: 17 pages, 14 figures
Modeling Hot Gas Flow in the Low-Luminosity Active Galactic Nucleus of NGC3115
Creators: name: Shcherbakov, Roman V.
name: Wong, Ka-Wah
name: Irwin, Jimmy A.
name: Reynolds, Christopher S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Based on the dynamical black hole (BH) mass estimates, NGC3115 hosts the closest billion solar mass BH. Deep studies of the center revealed a very underluminous active galactic nucleus (AGN) immersed in an old massive nuclear star cluster. Recent $1$~Ms \textit{Chandra} X-ray visionary project observations of the NGC3115 nucleus resolved hot tenuous gas, which fuels the AGN. In this paper we connect the processes in the nuclear star cluster with the feeding of the supermassive BH. We model the hot gas flow sustained by the injection of matter and energy from the stars and supernova explosions. We incorporate electron heat conduction as the small-scale feedback mechanism, the gravitational pull of the stellar mass, cooling, and Coulomb collisions. Fitting simulated X-ray emission to the spatially and spectrally resolved observed data, we find the best-fitting solutions with $χ^2/dof=1.00$ for $dof=236$ both with and without conduction. The radial modeling favors a low BH mass $<1.3\times10^{9}M_\odot$. The best-fitting supernova rate and the best-fitting mass injection rate are consistent with their expected values. The stagnation point is at $r_{\rm st}\lesssim1$arcsec, so that most of gas, including the gas at a Bondi radius $r_B=2-4$arcsec, outflows from the region. We put an upper limit on the accretion rate at $2\times10^{-3}M_\odot{\rm yr}^{-1}$. We find a shallow density profile $n\propto r^{-β}$ with $β\approx1$ over a large dynamic range. This density profile is determined in the feeding region $0.5-10$arcsec as an interplay of four processes and effects: (1) the radius-dependent mass injection, (2) the effect of the galactic gravitational potential, (3) the accretion flow onset at $r\lesssim1$arcsec, and (4) the outflow at $r\gtrsim1$arcsec. The gas temperature is close to the virial temperature $T_v$ at any radius.
description: 14 pages, 9 figures, accepted to ApJ
Megalomys luciae
Creators: name: Musser, Guy G.
name: Carleton, Michael D.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Rodentia
Muridae
Megalomys
Megalomys luciae

description: Megalomys luciae (Forsyth Major, 1901). Ann. Mag. Nat. Hist., ser. 7, 7:206. TYPE LOCALITY: Lesser Antilles, Santa Lucia. DISTRIBUTION: Known only from the type locality. STATUS: Extinct.
description: Published as part of Guy G. Musser & Michael D. Carleton, 1993, Order Rodentia - Family Muridae, pp. 501-755 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 707, DOI: 10.5281/zenodo.7353098
Left-right twin Higgs model confronted with the latest LHC Higgs data
Creators: name: Liu, Yao-Bei
name: Cheng, Shan
name: Xiao, Zhen-Jun
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Motivated by the latest LHC Higgs data, we calculate the new physics contributions to the Higgs decay channels of $h\to γγ, Zγ, ττ, WW^*$ and $ ZZ^*$ in the left-right twin Higgs (LRTH) model, induced by the loops involving the heavy T-quark, the $W_H$ and $ϕ^\pm$ bosons appeared in the LRTH model. We find that (a) for a SM-like Higgs boson around 125.5 GeV, the signal rates normalized to the corresponding standard model (SM) predictions are always suppressed when new physics contributions are taken into account and approach the SM predictions for a large scalar parameter $f$; and (b) the LRTH prediction for $R_{γγ}$ agree well with the CMS measurement $R_{γγ}=0.77\pm 0.27$ at $1σ$ level, but differ with the ATLAS result. The forthcoming precision measurement of the diphoton signal at the LHC can be a sensitive probe for the LRTH model.
description: 14 pages, 5 figures
IMPROVE READING SKILLS FOR 4TH GRADERS IN GRANVILLE AND VANCE COUNTIES, NORTH CAROLINA
Creators: name: Hill, Moriah
name: Edge, Zyna
name: Walton, Shriona
name: Thompson, Najerrei
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2025

description:
This proposal highlights the urgent need to address the persistently low fourth-grade reading proficiency rates in Granville and Vance counties, North Carolina, where literacy levels lag significantly behind state averages. Recognizing education as an essential social determinant of health, this initiative emphasizes a comprehensive strategy that targets key areas of educational improvement. The proposed approach includes detailed data collection and analysis to accurately identify and monitor students' individual literacy challenges, the implementation of culturally responsive curricula that reflect students' diverse backgrounds and enhance engagement, strengthened partnerships with families and local communities to foster supportive reading environments outside the classroom, and extensive professional development for educators emphasizing evidence-based literacy instruction techniques. By systematically integrating these components, the initiative seeks to significantly raise reading proficiency, thereby improving long-term academic outcomes, reducing educational disparities, and promoting healthier communities throughout Granville and Vance counties.
Diagnostic accuracy of multiplex nucleic acid amplification tests for Campylobacter infection: a systematic review and meta-analysis
Creators: name: Rousou, Xanthoula
name: Furuya-Kanamori, Luis
name: Kostoulas, Polychronis
name: Doi, Suhail A.R.
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Medicine
subject: Molecular Biology
subject: Biotechnology
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Campylobacter infection is one of the most frequently reported foodborne diseases with approximately 230,000 and 1.5 million cases each year in Europe and the USA, respectively. Culture methods are the reference for the diagnosis of Campylobacter infections; however, these methods are complex and time-consuming. Multiplex nucleic acid amplification test is favored due to its rapidity, automatization in the procedure followed and the quick simultaneous testing of numerous foodborne pathogens. The aim of this meta-analysis was to evaluate the accuracy of these tests for the diagnosis of Campylobacter infection. Scopus, Science Direct, PubMed, Web of Science, and Mendeley were searched for peer-reviewed articles. The split component synthesis method with the use of the inverse variance heterogeneity model was chosen for the quantitative meta-analysis. Sensitivity analysis was performed by age category and index test. The literature search found 34 studies involving 28,105 patients with suspected gastroenteritis. The sensitivity and specificity were 95.3% (92.3; 97.1) and 97.1% (95.1; 98.3), respectively, and AUC (area under the curve) was 0.963 (0.947; 0.974). Pediatric patients had a lower sensitivity (87.4, 48.2; 98.1) and higher specificity (99.2, 91.6; 99.9) estimate compared to all ages category (sensitivity 95.3, 91.3; 97.5, specificity 96.7, 93.7; 98.3). Among the various index tests, Seeplex/Allplex and Amplidiag/Novodiag had the lowest estimate for sensitivity (88.9, 73.8; 95.8) and specificity (95.2, 86; 98.4), respectively. BDMax had the highest (sensitivity 98.1, 96.1; 99 and specificity 98.5, 97; 99.3). Multiplex nucleic acid tests showed excellent accuracy and could play an influential role in diagnosing Campylobacter infections.
BatchSampler: Sampling Mini-Batches for Contrastive Learning in Vision, Language, and Graphs
Creators: name: Yang, Zhen
name: Huang, Tinglin
name: Ding, Ming
name: Dong, Yuxiao
name: Ying, Rex
name: Cen, Yukuo
name: Geng, Yangliao
name: Tang, Jie
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Computation and Language (cs.CL)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: In-Batch contrastive learning is a state-of-the-art self-supervised method that brings semantically-similar instances close while pushing dissimilar instances apart within a mini-batch. Its key to success is the negative sharing strategy, in which every instance serves as a negative for the others within the mini-batch. Recent studies aim to improve performance by sampling hard negatives \textit{within the current mini-batch}, whose quality is bounded by the mini-batch itself. In this work, we propose to improve contrastive learning by sampling mini-batches from the input data. We present BatchSampler\footnote{The code is available at \url{https://github.com/THUDM/BatchSampler}} to sample mini-batches of hard-to-distinguish (i.e., hard and true negatives to each other) instances. To make each mini-batch have fewer false negatives, we design the proximity graph of randomly-selected instances. To form the mini-batch, we leverage random walk with restart on the proximity graph to help sample hard-to-distinguish instances. BatchSampler is a simple and general technique that can be directly plugged into existing contrastive learning models in vision, language, and graphs. Extensive experiments on datasets of three modalities show that BatchSampler can consistently improve the performance of powerful contrastive models, as shown by significant improvements of SimCLR on ImageNet-100, SimCSE on STS (language), and GraphCL and MVGRL on graph datasets.
description: 17 pages, 16 figures
The mass shell of strong-field quantum electrodynamics
Creators: name: Reiss, H. R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: It has long been known that a free electron in an intense plane-wave field has a mass shell that differs from the usual free-electron mass shell, with a form that implies that an intensity-dependent increase in mass occurs. It has been an enticing, but elusive goal to observe this mass shift. Many schemes have been proposed by which a definitive measurement may be made, and some claims of success exist, but these tests are not conclusive. It is shown here that the intense-field mass shell is not the result of a change in mass. Rather, it is a consequence of the potential energy that a charged particle must possess in the presence of a plane-wave field. When the effects of this potential are incorporated in a properly covariant form, the mass shift no longer appears and kinematical relations are conventional. If the plane-wave pulse is sufficiently long to allow the electron to exit the field adiabatically, then there is no alteration at all of the mass shell expression. Other aspects of the role played by the ponderomotive 4-potential are examined. It is also shown that the putative "relativistic mass" of the electron is illusory when confronted with covariance requirements. Both "mass increases" of the electron are thereby discredited by fundamental principles.
Melanomys Thomas 1902
Creators: name: Musser, Guy G.
name: Carleton, Michael D.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Rodentia
Muridae
Melanomys

description: Melanomys Thomas, 1902. Ann. Mag. Nat. Hist., ser. 7, 10:248. TYPE SPECIES: Oryzomys phaeopus Thomas, 1894 (= Hesperomys caliginosus Tomes, 1860). COMMENTS: Oryzomyine. A morphologically distinctive group usually arranged as a subgenus of Oryzomys since Goldman's (1918) revision (e.g., Tate, 1932e; Ellerman, 1941; Cabrera, 1961; Hall, 1981). Allen (1913), however, provided morphological criteria, as contrasted to the type species (= Mus palustris) of Oryzomys, defending his retention of Melanomys as a genus; its synonymy in Oryzomys proper deserves more rigorous, character-based, phylogenetic substantiation. The taxon has not been revised; the nominal species listed stem from Cabrera (1961), who acknowledged his solely literature-based interpretation as provisional.
description: Published as part of Guy G. Musser & Michael D. Carleton, 1993, Order Rodentia - Family Muridae, pp. 501-755 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on pages 707-708, DOI: 10.5281/zenodo.7353098
description: {"references": ["Thomas, O. 1894. On the mammals of Nyasaland: Third contribution. Proceedings of the Zoological Society of London, 1894: 136 - 142.", "Goldman, E. A. 1918. The rice rats of North America (Genus Oryzomys). North American Fauna, 43: 1 - 100.", "Tate, G. H. H. 1932 e. The taxonomic history of the South and Central American cricetid rodents of the genus Oryzomys. Part 2: Subgenera Oligoryzomys, Thallomyscus, and Melanomys. American Museum Novitates, 580: 1 - 16.", "Ellerman, J. R. 1941. The families and genera of living rodents. Vol. II. Family Muridae. British Museum (Natural History), London, 690 pp.", "Hall, E. R. 1981. The mammals of North America. Second ed. John Wiley and Sons, New York, 1: 1 - 600 + 90, 2: 601 - 1181 + 90.", "Allen, J. A. 1913. Revision of the Melanomys group of American Muridae. Bulletin of the American Museum of Natural History, 32: 535 - 555."]}
Lifshitz black holes in higher spin gravity
Creators: name: Gutperle, Michael
name: Hijano, Eliot
name: Samani, Joshua
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study asymptotically Lifshitz solutions to three dimensional higher spin gravity in the SL(3,R)xSL(3,R) Chern-Simons formulation. We begin by specifying the most general connections satisfying Lifshitz boundary conditions, and we verify that their algebra of symmetries contains a Lifshitz sub-algebra. We then exhibit connections that can be viewed as higher spin Lifshitz black holes. We show that when suitable holonomy conditions are imposed, these black holes obey sensible thermodynamics and possess a gauge in which the corresponding metric exhibits a regular horizon.
description: 34 pages, LaTeX, 10 figures, v2: minor edits, 2 new references
In vivo activity and atom pair fingerprint analysis of MMV665941 against the apicomplexan parasite Babesia microti, the causative agent of babesiosis in humans and rodents
Creators: name: Rizk, Mohamed Abdo
name: El-Sayed, Shimaa Abd El-Salam
name: Igarashi, Ikuo
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
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: Hematology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology

description: The effect of MMV665941 on the growth of Babesia microti (B. microti) in mice, was investigated in this study using a fluorescence-based SYBR Green I test. Using atom Pair signatures, we investigated the structural similarity between MMV665941 and the commonly used antibabesial medicines diminazene aceturate (DA), imidocarb dipropionate (ID), or atovaquone (AV). In vitro cultures of Babesia bovis (B. bovis) and, Theileria equi (T. equi) were utilized to determine the MMV665941 and AV interaction using combination ratios ranged from 0.75 IC50 MMV665941:0.75 IC50 AV to 0.50 IC50 MMV665941:0.50 IC50 AV. The used combinations were prepared depending on the IC50 of each drug against the in vitro growth of the tested parasite. Every 96 h, the hemolytic anemia in the treated mice was monitored using a Celltac MEK-6450 computerized hematology analyzer. A single dose of 5 mg/kg MMV665941 exhibited inhibition in the B. microti growth from day 4 post-inoculation (p.i.) till day 12 p.i. MMV665941 caused 62.10%, 49.88%, and 74.23% inhibitions in parasite growth at days 4, 6 and 8 p.i., respectively. Of note, 5 mg/kg MMV665941 resulted in quick recovery of hemolytic anemia caused by babesiosis. The atom pair fingerprint (APfp) analysis revealed that MMV665941 and atovaquone (AV) showed maximum structural similarity. Of note, high concentrations (0.75 IC50) of MMV665941 and AV caused synergistic inhibition on B. bovis growth. These findings suggest that MMV665941 might be a promising drug for babesiosis treatment, particularly when combined with the commonly used antibabesial drug, AV.
Melanomys caliginosus
Creators: name: Musser, Guy G.
name: Carleton, Michael D.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Rodentia
Muridae
Melanomys
Melanomys caliginosus

description: Melanomys caliginosus (Tomes, 1860). Proc. Zool. Soc. Lond., 1860:263. TYPE LOCALITY: Ecuador, Esmeraldas Prov., Esmeraldas. DISTRIBUTION: C American lowlands from easternmost Honduras through Panama; in South America, N and W Colombia to extreme NW Venezuela and to SW Ecuador. SYNONYMS: affinis, buenavistae, chrysomelas, columbianus, idoneus, lomitensis, monticola, obscurior, olivinus, oroensis, phaeopus, tolimensis, vallicola. COMMENTS: Chromosomal complement described by Gardner and Patton (1976).
description: Published as part of Guy G. Musser & Michael D. Carleton, 1993, Order Rodentia - Family Muridae, pp. 501-755 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 708, DOI: 10.5281/zenodo.7353098
description: {"references": ["Gardner, A. L., and J. L. Patton. 1976. Karyotypic variation in oryzomyine rodents (Cricetinae) with comments on chromosomal evolution in the Neotropical cricetine complex. Occasional Papers of the Museum of Zoology, Louisiana State University, 49: 1 - 48."]}
Constraints on the extragalactic magnetic field strength from blazar spectra based on 145 months of Fermi-LAT observations
Creators: name: Podlesnyi, E. I.
name: Dzhatdoev, T. A.
name: Galkin, V. I.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Properties of the extragalactic magnetic field (EGMF) outside of clusters and filaments of the large-scale structure are essentially unknown. The EGMF could be probed with $γ$-ray observations of distant (redshift $z > 0.1$) blazars. TeV $γ$ rays from these sources are strongly absorbed on extragalactic background light photons; secondary electrons and positrons produce cascade $γ$ rays with the observable flux dependent on EGMF parameters. We put constraints on the EGMF strength using 145 months of Fermi-LAT observations of the blazars 1ES 1218+304, 1ES 1101-232, and 1ES 0347-121, and imaging atmospheric Cherenkov telescope observations of the same sources. We perform a series of full direct Monte Carlo simulations of intergalactic electromagnetic cascades with the ELMAG 3.01 code and construct a model of the observable spectra inside the point spread functions of the observing instruments for a range of EGMF strengths. We compare the observed spectra with the models for various values of the EGMF strength $B$ and calculate the exclusion statistical significance for every value of $B$. We find that the values of the EGMF strength $B \le 10^{-17}$ G are excluded at a high level of the statistical significance $Z > 4 σ$ for all the four options of the intrinsic spectral shape considered (power-law, power-law with exponential cutoff, log-parabola, log-parabola with exponential cutoff). The value of $B = 10^{-16}$ G is not excluded; it is still a viable option of the EGMF strength. These results were obtained for the case of steady sources.
description: 10 pages, 6 figures, 2 tables. Published in MNRAS. This is the authors' version, not the final typeset. Minor main text changes w.r.t. v2, two appendices added. Supplementary material is available at https://doi.org/10.5281/zenodo.6483355
Electronic and vibronic properties of a discotic liquid-crystal and its charge transfer complex
Creators: name: Haverkate, Lucas
name: Zbiri, Mohamed
name: Johnson, Mark
name: Carter, Elisabeth
name: Kotlewski, Arek
name: Picken, S.
name: Mulder, Fokko
name: Kearley, Gordon
Publisher: name: arXiv
Year: 2013
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Discotic liquid crystalline (DLC) charge transfer (CT) complexes combine visible light absorption and rapid charge transfer characteristics within the CT complex, being favorable properties for photovoltaic (PV) applications. We present a detailed study of the electronic and vibrational properties of the prototypic 1:1 mixture of discotic 2,3,6,7,10,11-hexakishexyloxytriphenylene (HAT6) and 2,4,7-trinitro-9-fluorenone (TNF). It is shown that intermolecular charge transfer occurs in the groundstate of the complex: a charge delocalization of about 10-2 electron from the HAT6 core to TNF is deduced from both Raman and our previous NMR measurements (Reference 32), implying the presence of permanent dipoles at the donor-acceptor interface. A combined analysis of density functional theory calculations, resonant Raman and UV-VIS absorption measurements indicate that fast relaxation occurs in the UV region due to intramolecular vibronic coupling of HAT6 quinoidal modes with lower lying electronic states. Relatively slower relaxation in the visible region CT-band of the complex is also indicated, which likely involves motions of the TNF nitro groups. The fast quinoidal relaxation process in the hot UV band of HAT6 relates to pseudo-Jahn-Teller interactions in a single benzene unit, suggesting that the underlying vibronic coupling mechanism can be generic for polyaromatic hydrocarbons. Both the presence of CT dipoles and relatively slow relaxation processes in the CT band can be relevant concerning the design of DLC based organic PV systems.
Sociocultural barriers to breast and cervical cancer screening among women in Kaduna, northern Nigeria
Creators: name: Dodo, Aisha Mukhtar
Publisher: name: Cardiff Metropolitan University
Year: 2022
Subjects: Cancer diagnosis

description: Breast and cervical cancer account for the highest cancer-related morbidity and mortality among Nigerian women. Late stage diagnoses are common due to lack of National screening programme, although opportunistic screening occurs in some States. Research in Northern Nigeria has predominantly investigated demographic factors influencing breast and cervical cancer screening behaviours, however few studies have assessed the effects of social and cultural factors. This thesis aimed to examine and gain understanding of Kaduna womenâ€™s and healthcare professionalsâ€™ perceptions, knowledge, attitude, and practice towards breast and cervical cancer, and screening behaviours. It also aimed to assess sociodemographic and sociocultural factors that may influence screening and develop strategies towards improving services and uptake. A sequential explanatory Mixed Method Methodology was applied, following a critical review of health behaviours, screening uptake, and intervention approaches. First, quantitative surveys investigated cancer related knowledge, attitude, perception, and factors influencing screening behaviours among 250 adult women. Next, qualitative interviews with 12 women, and 6 healthcare professionals further assessed the phenomena. The moderate sample size (250) used due to security unrest in Kaduna during the study, limited generalisability of the findings. Quantitative results revealed gap in cancer knowledge, and low screening uptake. Having professional jobs, tertiary education, and being married were associated with better awareness, positive attitude and perception of cancer and screening. Healthcare professionals stated that low-risk perception, lack of services and trained providers hindered screening uptake. Women expressed that sociocultural norms and beliefs including fatalism, need for support from husbands, and gender of health providers influenced their screening behaviours. A model to guide development and implementation of screening intervention strategies was produced from the findings. This emphasised the need for multi-organisation collaborations, and development of culturally and socially sensitive programmes. Accessible, affordable, and equipped facilities with trained health workers could improve uptake, and subsequently reduce cancer related morbidity and mortality.
Schouten identities for Feynman graph amplitudes; the Master Integrals for the two-loop massive sunrise graph
Creators: name: Remiddi, Ettore
name: Tancredi, Lorenzo
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A new class of identities for Feynman graph amplitudes, dubbed Schouten identities, valid at fixed integer value of the dimension d is proposed. The identities are then used in the case of the two loop sunrise graph with arbitrary masses for recovering the second order differential equation for the scalar amplitude in d=2 dimensions, as well as a chained sets of equations for all the coefficients of the expansions in (d-2). The shift from $d\approx2$ to $d\approx4$ dimensions is then discussed.
description: 30 pages, 1 figure, minor typos in the text corrected, results unchanged. Version accepted for publication on Nuclear Physics B
Melanomys robustulus Thomas 1914
Creators: name: Musser, Guy G.
name: Carleton, Michael D.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Rodentia
Muridae
Melanomys
Melanomys robustulus

description: Melanomys robustulus Thomas, 1914. Ann. Mag. Nat. Hist., ser. 8, 14:243. TYPE LOCALITY: Ecuador, Morona-Zamora Prov., Gualaquiza, 2500 ft. DISTRIBUTION: SE Ecuador.
description: Published as part of Guy G. Musser & Michael D. Carleton, 1993, Order Rodentia - Family Muridae, pp. 501-755 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 708, DOI: 10.5281/zenodo.7353098
Towards minimally invasive respiratory diagnosis: functional biomaterials for biomarker extraction from the nasal passage
Creators: name: Jones, Paul
Publisher: name: Imperial College London
Year: 2018

description: Delay of diagnosis is a significant bottleneck in current healthcare practice, reducing the efficacy of administered treatments. Biomolecular identification and profiling of mucosal fluids constitutes a promising means of minimally invasive and effective diagnosis. This thesis develops a silica-based biomaterial prototype device formulated around the hypothesis of improved respiratory diagnosis through selective marker extraction and separation from nasal fluid. Polydimethylsiloxane rods were successfully functionalised with octadecyl silica (ODS) via surface-initiated atom transfer radical polymerisation (ATRP). Analysis under desorption electrospray ionisation mass spectrometry yielded significant improvements in lipid marker detection compared to currently used cotton swabs. Silica-based scaffolds were then synthesised into xerogels, with their porous and increased surface area properties benefitting diagnostic potential. Surface grafting of ODS onto such xerogels again increased detection of various lipid species via liquid chromatography mass spectrometry detection. Whilst the xerogels’ polydimethylsiloxane-like network allowed for a direct transfer of ATRP functionalisation, the stringent reaction environment conditions of ATRP favoured the use of facile thiol-ene surface grafting methods as a more efficient means of surface modification – and did not affect the inherent beneficial properties of xerogels. The ease and flexibility of xerogel surface modification through thiol-ene methods was then expanded to broaden the range of surface-graftable groups and thus extraction capabilities of the proposed xerogel platform. Allyl methacrylate block copolymers with precise architectures synthesised in solution ex-situ were successfully grafted onto xerogels without any detrimental effect on the xerogels’ inherent physical properties. Shifting focus towards specific marker extraction, grafted mannose glycomonomers allowed dendritic cell extraction from model solutions. Finally, the successful surface-functionalisation of capture antibodies onto xerogels allowed the extraction of specific proteins and their in-situ detection, constituting a firm basis for a point-of-care diagnostic device. Thus, the aim of developing a prototype medical device platform for improved diagnosis through the selective extraction of biomarkers was fulfilled.
Primal and Dual Approximation Algorithms for Convex Vector Optimization Problems
Creators: name: Löhne, Andreas
name: Rudloff, Birgit
name: Ulus, Firdevs
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics
subject: 90C29, 90C25, 90-08, 91G99

description: Two approximation algorithms for solving convex vector optimization problems (CVOPs) are provided. Both algorithms solve the CVOP and its geometric dual problem simultaneously. The first algorithm is an extension of Benson's outer approximation algorithm, and the second one is a dual variant of it. Both algorithms provide an inner as well as an outer approximation of the (upper and lower) images. Only one scalar convex program has to be solved in each iteration. We allow objective and constraint functions that are not necessarily differentiable, allow solid pointed polyhedral ordering cones, and relate the approximations to an appropriate ε-solution concept. Numerical examples are provided.
Melanomys zunigae
Creators: name: Musser, Guy G.
name: Carleton, Michael D.
Publisher: name: Zenodo
Year: 1993
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Rodentia
Muridae
Melanomys
Melanomys zunigae

description: Melanomys zunigae (Sanborn, 1949). Pubi. Mus. Hist. Nat., Javier Prado, Zool., 1 (3):2. TYPE LOCALITY: Peru, Lima Dept., Lomas de Atocongo. DISTRIBUTION: WC Peru.
description: Published as part of Guy G. Musser & Michael D. Carleton, 1993, Order Rodentia - Family Muridae, pp. 501-755 in Mammal Species of the World (2 nd Edition), Washington and London :Smithsonian Institution Press on page 708, DOI: 10.5281/zenodo.7353098
BCS-like superconductivity in the noncentrosymmetric compounds Nb$_x$Re$_{1-x}$
Creators: name: Chen, J.
name: Jiao, L.
name: Zhang, J. L.
name: Chen, Y.
name: Yang, L.
name: Nicklas, M.
name: Steglich, F.
name: Yuan, H. Q.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We present research on the superconducting properties of Nb$_{x}$Re$_{1-x}$ ($x$ = 0.13-0.38) obtained by measuring the electrical resistivity $ρ(T)$, magnetic susceptibility $χ(T)$, specific heat $C_P(T)$, and London penetration depth $Δλ(T)$. It is found that the superconducting transition temperature $T_c$ decreases monotonically with an increase of $x$. The upper critical field $B_{c2}(T)$ for various $x$ can be nicely scaled by its corresponding $T_c$. The electronic specific heat $C_e(T)/T$, penetration depth $Δλ(T)$, and superfluid density $ρ_{s}(T)$ demonstrate exponential behavior at low temperatures and can be well fitted by a one-gap BCS model. The residual Sommerfeld coefficient $γ_0(B)$ in the superconducting state follows a linear field dependence. All these properties suggest an \emph{s}-wave BCS-type of superconductivity with a very large $B_{c2}(0)$ for Nb$_{x}$Re$_{1-x}$ (0.13 $\leq x \leq$ 0.38).
description: 6 pages, 6 figures
Angular Dependence of Coherent Pion Production by Neutrinos
Creators: name: Higuera, A.
name: Paschos, E. A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Coherent pion production by neutrinos has been interpreted in the framework of the Partially Conserved Axial Current hypothesis (PCAC) and explicit model calculations are available. In this article we compute angular correlations for the produced pions which may help to separate the signal from the background. We present many figures useful for the experiments and compare them with another model.
description: 10 pages, 4 figures
Developing an innovative procurement framework through an evaluation of practitioners' engagement with procurement tools in the delivery of firm performance.
Creators: name: Allcock, David Murray
Publisher: name: Cardiff Metropolitan University
Year: 2022
Subjects: Business systems in context not elsewhere classified

description: This thesis evaluates academic knowledge surrounding the procurement process frameworks deployed by firms and used by practitioners to guide them in securing supply contracts for their firms. The research identifies knowledge gaps relating to the use of these frameworks and their transition from academic knowledge into practice. The thesis discusses how the end to end procurement process frameworks, in combination with internal and external relationships, support the delivery of procurement performance to the firm, thus enhancing firm performance. It achieves this through a two-stage qualitative methodology; initially, through a procurement practitioner survey, which evaluates their technical understanding of four tools identified in the literature, as prevalent in procurement academic discussion judged by longevity, relevance and frequency, as well as their transition into practice. Secondly, practitioner interviews use phenomenological techniques to consider how the phenomena of their frameworks and tools impact their delivery of procurement services. In parallel, a firm executive forum investigates the perspectives of business leaders in relation to their procurement functions, and their contribution to the performance of the firm. The analysis identifies that academia is unconvinced of the transition of procurement from a tactical to a strategically aligned function. This results in an academic knowledge base which is limited and derivative in nature. It focuses on niche elements of the procurement process and a limited toolset; with little evidence of the transition of this discourse into practice. In practice, procurement functions demonstrate tactical orientations, this constrains internal business alignment. The research indicates that practitioners understand the need for frameworks and tools but complete them through a sense of compliance. This research synthesis a new procurement process framework for discussion within academia and practice, building on previous knowledge, whilst providing a framework for practitioner adoption. Greater practice adoption will provide new avenues of research to inform academic development.
Electromagnetic self-force on a static charge in Schwarzschild-de Sitter spacetimes
Creators: name: Kuchar, Joseph
name: Poisson, Eric
name: Vega, Ian
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We compute the self-force acting on an electric charge at rest in Schwarzschild-de Sitter spacetimes, allowing the cosmological constant to be either positive or negative. In the case of a positive cosmological constant, we show that the self-force is always positive, representing a repulsion from the black hole, and monotonically decreasing with increasing distance from the black hole. The spectrum of results is richer in the case of a negative cosmological constant. Here the self-force is not always positive --- it is negative when the black-hole and cosmological scales are comparable and the charge is close to the black hole --- and not always monotonically decreasing --- it is actually monotonically increasing when the cosmological scale is sufficiently small compared to the black-hole scale. The self-force also approaches a constant asymptotic value when the charge is moved to large cosmological distances; this feature can be explained in terms of an interaction between the charge and the conformal boundary at infinity, which acts as a grounded conductor.
description: 13 pages, 3 figures
Design, synthesis, and biological evaluation of 1,8-naphthyridine derivatives as RSK4 inhibitors for the treatment of lung cancer
Creators: name: Dos Reis Cruz, Luiza
Publisher: name: Imperial College London
Year: 2018

description: Lung cancer is the most common cause of cancer death worldwide and it has one of the lowest survival rates among tumours, thus the need to develop new drugs to treat the disease is clear. Among the different kinases involved in cancer pathologies in general, and in lung cancer, we focused our efforts on the validation of RSK4 as a tumour promoter in the lungs. Preliminary unpublished results suggested the antibiotics trovafloxacin and moxifloxacin inhibit RSK4 activation and as consequence increase chemosensitisation to cisplatin, decreasing cell survival and preventing cell invasion and migration. To validate these findings and try to establish the necessary features for compound activity, trovafloxacin was successfully synthesised in gram scale, along with 47 analogues to allow for structure-activity relationship studies. To do so, a biochemical assay was envisioned to study the ability of our compounds to inhibit RSK activation by its upstream kinase ERK. To this end, both kinases were recombinantly expressed and purified, and we have ongoing efforts to achieve the necessary conditions for compound assessment. Additionally, we were able to develop a HEK-293 cell line stably overexpressing RSK4 for a cell-based assay aimed at the measurement of RSK4 phosphorylation levels, and preliminary results show that some of our analogues were able to decrease RSK4 activation in comparison to the controls used. This assay was supported by analyses by tandem mass spectrometry. Finally, in vivo studies using trovafloxacin in a xenograft mouse model highlighted the ability of the antibiotic to prevent cell survival, invasion and migration, and to enhance cisplatin effects.
The Herschel Stripe 82 Survey (HerS): Maps and Early Catalog
Creators: name: Viero, M. P.
name: Asboth, V.
name: Roseboom, I. G.
name: Moncelsi, L.
name: Marsden, G.
name: Cooper, E. Mentuch
name: Zemcov, M.
name: Addison, G.
name: Baker, A. J.
name: Beelen, A.
name: Bock, J.
name: Bridge, C.
name: Conley, A.
name: Devlin, M. J.
name: Doré, O.
name: Farrah, D.
name: Finkelstein, S.
name: Font-Ribera, A.
name: Geach, J. E.
name: Gebhardt, K.
name: Gill, A.
name: Glenn, J.
name: Hajian, A.
name: Halpern, M.
name: Jogee, S.
name: Kurczynski, P.
name: Lapi, A.
name: Negrello, M.
name: Oliver, S. J.
name: Papovich, C.
name: Quadri, R.
name: Ross, N.
name: Scott, D.
name: Schulz, B.
name: Somerville, R.
name: Spergel, D. N.
name: Vieira, J. D.
name: Wang, L.
name: Wechsler, R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present the first set of maps and band-merged catalog from the Herschel Stripe 82 Survey (HerS). Observations at 250, 350, and 500 micron were taken with the Spectral and Photometric Imaging Receiver (SPIRE) instrument aboard the Herschel Space Observatory. HerS covers 79 deg$^2$ along the SDSS Stripe 82 to a depth of 13.0, 12.9, and 14.8 mJy beam$^{-1}$ (including confusion) at 250, 350, and 500 micron, respectively. HerS was designed to measure correlations with external tracers of the dark matter density field --- either point-like (i.e., galaxies selected from radio to X-ray) or extended (i.e., clusters and gravitational lensing) --- in order to measure the bias and redshift distribution of intensities of infrared-emitting dusty star-forming galaxies and AGN. By locating HeRS in Stripe 82, we maximize the overlap with available and upcoming cosmological surveys. The band-merged catalog contains 3.3x10$^4$ sources detected at a significance of >3 $σ$ (including confusion noise). The maps and catalog are available at http://www.astro.caltech.edu/hers/
description: Accepted to ApJS. 11 Pages, 7 figures. Data available at http://www.astro.caltech.edu/hers/