cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Fluorophore multimerization on a PEG backbone as a concept for signal amplification and lifetime modulation
Creators: name: Reiber, Thorge
name: Hübner, Oskar
name: Dose, Christian
name: Yushchenko, Dmytro A.
name: Resch-Genger, Ute
Publisher: name: Humboldt-Universität zu Berlin
Year: 2024
Subjects: subject: Label
subject: Multimeric dyes
subject: Flow cytometry
subject: Fluorescence microscopy
subject: Fluorescence lifetime imaging (flim)
subject: Brightness
subject: Photostability
subject: Photochemistry
subject: Physical chemistry
subject: 500 Naturwissenschaften und Mathematik
subject: 600 Technik und Technologie

description: Fluorescent labels have strongly contributed to many advancements in bioanalysis, molecular biology, molecular imaging, and medical diagnostics. Despite a large toolbox of molecular and nanoscale fluorophores to choose from, there is still a need for brighter labels, e.g., for flow cytometry and fluorescence microscopy, that are preferably of molecular nature. This requires versatile concepts for fluorophore multimerization, which involves the shielding of dyes from other chromophores and possible quenchers in their neighborhood. In addition, to increase the number of readout parameters for fluorescence microscopy and eventually also flow cytometry, control and tuning of the labels’ fluorescence lifetimes is desired. Searching for bright multi-chromophoric or multimeric labels, we developed PEGylated dyes bearing functional groups for their bioconjugation and explored their spectroscopic properties and photostability in comparison to those of the respective monomeric dyes for two exemplarily chosen fluorophores excitable at 488 nm. Subsequently, these dyes were conjugated with anti-CD4 and anti-CD8 immunoglobulins to obtain fluorescent conjugates suitable for the labeling of cells and beads. Finally, the suitability of these novel labels for fluorescence lifetime imaging and target discrimination based upon lifetime measurements was assessed. Based upon the results of our spectroscopic studies including measurements of fluorescence quantum yields (QY) and fluorescence decay kinetics we could demonstrate the absence of significant dye-dye interactions and self-quenching in these multimeric labels. Moreover, in a first fluorescence lifetime imaging (FLIM) study, we could show the future potential of this multimerization concept for lifetime discrimination and multiplexing.
title: Rainbow School: Systematic Review on Attitudes and Perceptions of Educational Agents towards LGBTQ Students
Creators: name: Mourão, Ana Filipa
name: Fonte, Carla
name: Caridade, Sónia Maria Martins
name: Ferreira, Marlene
Publisher: name: OSF Registries
Year: 2024
Subjects: subject: Social and Behavioral Sciences
subject: LGBT students; Educational agents; perceptions

description: A systematic review protocol
Application of the Feshbach-resonance management to a tightly confined Bose-Einstein condensate
Creators: name: Filatrella, Giovanni
name: Malomed, Boris A.
name: Salasnich, Luca
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We study suppression of the collapse and stabilization of matter-wave solitons by means of time-periodic modulation of the effective nonlinearity, using the nonpolynomial Schroedinger equation (NPSE) for BEC trapped in a tight cigar-shaped potential. By means of systematic simulations, a stability region is identified in the plane of the modulation amplitude and frequency. In the low-frequency regime, solitons feature chaotic evolution, although they remain robust objects.
description: Physical Review A, in press
Oxyfluorides, oxyfluorosulphates and oxycations of the halogens and selenium
Creators: name: Carter, Henry Albert
Publisher: name: University of British Columbia
Year: 2011

description: Alternate routes for the preparation of chloryl fluorosulphate, ClO₂SO₃F, have been found. Evidence for the existence of the chloronium cation, ClO₂⁺, as a red-coloured species in fluorosulphuric acid, HSO₃F, has been obtained from electrical conductivity measurements, employing ClO₂SO₃F and (ClO₂)₂S₃O₁₀, dichloryl trisulphate, as solutes. nuclear magnetic resonance and uv-visible spectroscopy were also used to study solutions of ClO₂SO₃F in HSO₃F, and are in agreement with the conductivity results. The infrared and Raman spectra of the white solids, chloryl hexafluoroarsenate, chloryl hexafluoroantimonate and dichloryl hexafluorostannate have been obtained. The observed vibrations have been interpreted in terms of ionic compounds where strong cation-anion interaction via fluorine bridging results in a symmetry lowering of the anion. The effect of this interaction is also seen in the Mossbauer spectrum of (ClO₂)₂SnF₆ where a non-zero quadrupole splitting is found. All compounds dissolve in HSO₃F to give red-coloured solutions as a result of the formation of ClO₂⁺ cations. Tn addition, conductivity measurements show chloryl fluoride, ClO₂F, to be completely'.dissociated in HSO^F and to form ClO₂⁺ cations and SO₃F⁻ anions. The vibrational spectra of ClF₂AsF₆, ClF₂SbF₆ and Br₂SbF₆ have been recorded. In all compounds, various degrees of anion-cation interaction are found, resulting in the lowering of the symmetry of the anion. In addition, strong coupling of the vibrational modes for Br₂SbF₆, are observed. An alternate route to the preparation of KBr(SO₃F)₃ was found. A Raman spectrum of this compound indicates a square planar configuration for the anion with polar bromine-oxygen bonds. The Raman spectra obtained for the tris-fluorosulphates I(SO₃F)₃ and Br(SO₃F)₃ indicates the presence of two types of fluorosulphates groups and polymeric structures for these compounds. The structure of iodyl fluorosulphate, IO₂SO₃F, has been examined by Raman spectroscopy and conductivity measurements in HSO₃F. Evidence is found for discrete IO₂ groups linked by covalent bidentate fluorosulphate groups. A Raman spectrum of iodyl fluoride showed it to be dissimilar to the chlorine analogue, CIO₂F, and possess a polymeric structure. No discrete IO₂ groups are found in IO₂AsF₆ on the basis of the infrared spectrum. The new compound selenium (IV) oxyfluorosulphate, SeO(SO₃F)₂, has been prepared by the reaction of S₂O₆F₂ SeOCl₂ or SeO. The structure of SeO(SO₃F)₂ has been investigated mainly by Raman spectroscopy and conductimetry in HSO₃F. A self-dissociation process of the type, SeO(SO₃F)₂ = SeO(SO₃F)⁺ + SO₃F⁻ is suggested for SeO(SO₃F)₂ to explain the results of the physical methods. Also, the addition of SeOCl₂ to SeO(SO₃F)₂ results in the formation of SeO(SO₃F)Cl. Both SeO(SO₃F)Cl and SeO(SO₃F)₂ show unusually high Se=O vibrational stretching frequencies indicating polar Se-OSO₂F bonds.
SBV regularity for Hamilton-Jacobi equations in $\mathbb R^n$
Creators: name: Bianchini, Stefano
name: De Lellis, Camillo
name: Robyr, Roger
Publisher: name: arXiv
Year: 2010
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35B65, 35D40, 49Q15, 34H05

description: In this paper we study the regularity of viscosity solutions to the following Hamilton-Jacobi equations $$ \partial_t u + H(D_{x} u)=0 \qquad \textrm{in} Ω\subset \mathbb R\times \mathbb R^{n} . $$ In particular, under the assumption that the Hamiltonian $H\in C^2(\mathbb R^n)$ is uniformly convex, we prove that $D_{x}u$ and $\partial_t u$ belong to the class $SBV_{loc}(Ω)$.
description: 15 pages
title: A Counting-Focused Instructional Treatment for Developing Number System Knowledge in Second-Grade: A Mixed Methods Study on Children's Number Sense
Creators: name: Shumway, Jessica F.
Publisher: name: Utah State University
Year: 2016

description: Instruction for developing students' number sense is a critical area of research in mathematics education because of the role number sense plays in early mathematics learning. Specifically, number system knowledge has been identified as a key cognitive mechanism in number sense development. The purpose of this mixed methods study was to explore variations in second-grade students' number sense development as they engaged in a counting-focused instructional treatment, geared towards developing number system knowledge, for differing amounts of time. Sixty second-grade students participated in number sense assessments and two students participated in in-depth, task-based interviews to provide quantitative and qualitative data to investigate the change and development of students' number sense during the instructional treatment.
A generalized estimating equations (GEE) analysis showed an associated average increase in test scores for students participating int 9 weeks of the instructional treatment as compared to students participating in 3 weeks of the instructional treatment. This indicated that the counting-focused instructional treatment influenced and changed students' number sense. An important implication of this result is that it highlights the importance of number sense developing over time with multiple, connected experiences.
The in-depth analyses of two cases showed learning growth from pretest to posttest for a low-achieving and high-achieving student. However, the two students' number sense developed in different ways and their access of number system knowledge varied. Shifts in learning mainly occurred after 6 weeks of the instructional treatment and depended on the student's existing use of number sense. The implication of this result is that the multiple access points and the high-ceiling of the instructional treatment benefited low- and high-achieving students in this study.
Findings from the study showed that the counting-focused instructional treatment provided number sense learning opportunities for students from a wide range of abilities and backgrounds within the classroom setting. For many teachers, it is difficult to orchestrate differentiated, whole-class mathematics instructional activities due to their students' wide ranging mathematics abilities. This study identifies a promising instructional practice for elementary mathematics teachers that can facilitate opportunities for students to develop their number sense during whole-class mathematics instruction.
An exploration of the nature of transformative learning and transformative pedagogy in a high school English context
Creators: name: Marks, SJ
Publisher: name: University Of Tasmania
Year: 2023

description: This study explores the nature of learning that transforms established frames of reference for those who engage in it. It also explores the nature of pedagogy that is likely to foster this transformative learning. It is based on the explorations of the teacher-researcher as she reflects on the learning experiences of some of her students and on her own teaching practice. The teacher-researcher's reflections emanate from her experiences teaching high school English to Years 10 and 11 students within a co-educational school in Sydney. Through engaging in hermeneutic phenomenological research, the teacher-researcher explores the types of learning contexts and pedagogical approaches that may be effective in fostering transformative learning. The literature review highlights the fact that explorations of the nature of transformative learning and transformative pedagogy have occurred almost exclusively within the domain of adult education and many researchers have expressed the view that this is a uniquely adult phenomenon. In exploring the transformative learning experiences of students between the ages of fifteen and seventeen, this study calls into question the view that only adults may experience transformative learning. It also raises awareness about the significance of transformative pedagogy in a high school context. The study highlights a number of pedagogical practices that are potentially transformative and concludes that transformative learning is most effectively fostered through relational forms of knowing emerging in dialogical learning contexts. Critical reflection is seen as being central to transformative learning and the importance of both affective and cognitive dimensions in the process of critical reflection is emphasised. Within a high school English context, the value of introducing students to a range of texts that may expose them to alternative ways of seeing is highlighted. The study demonstrates that integral to transformative pedagogy is the importance of providing students with both challenging learning experiences and with scaffolds designed to equip them to meet these challenges. The personally transformative nature of engaging in teacher-research is also highlighted and this is seen to have implications for models of staff professional development within schools. Reference is made to the limitations of the study, including those associated with being a teacher-researcher. As with other phenomenological studies, the findings do not purport to have direct and specific relevance to other contexts, although they may prove interesting to others interested in fostering transformative learning through transformative pedagogy.
Quasi-local variables and inhomogeneous cosmological sources with spherical symmetry
Creators: name: Sussman, Roberto A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We examine a large class of inhomogeneous spherically symmetric spacetimes that generalize the Lemaitre-Tolman-Bondi dust solutions to nonzero pressure ("LTB spacetimes"). Local covariant LTB objects can be expressed as perturbations of covariant quasi-local (QL) scalars that satisfy evolution equations of equivalent Friedman-Lemaitre-Robertson-Walker (FLRW) scalars. Thus, the dynamics of these spacetimes can be rigorously described as non-linear, gauge invariant and covariant perturbations on a formal FLRW background given by the QL scalars. Since LTB spacetimes are compatible with a wide variety of "equations of state" and theoretical assumptions, they provide an ideal framework for numerical models of cosmological sources under idealized but fully non-linear conditions. As an illustrative example, we briefly examine the formation of a black hole in an expanding Chaplygin gas universe.
description: 8 pages, 2 pdf figures. Provides a concise summary of some of the results of arXiv:0801.3324v4 [gr-qc]. Submitted to the AIP Conference Proceedings of the III International Meeting on Gravitation and Cosmology, Morelia, Mexico, May 26-30, 2008
title: Hidden History: A Mobile Application for Discovering Surrounding Landscapes
Creators: name: Ramineni, Sri Ram
Publisher: name: Utah State University
Year: 2016

description: This thesis work describes the design, development and evaluation of a mobile application called Hidden History. This application lets users discover and explore three types of landscapes (Historic, Scenic and Cultural) using three different modes of discovery (Route, Explore and Tour).
Before designing Hidden History, the feature set of other applications that help users explore surrounding landscapes were identified and analyzed. Hidden History was then designed to implement the best features of these applications and offer several functionality improvements. Design began with iterative paper prototyping, following which a high fidelity, digital prototype was created. The high fidelity prototype was tested through two rounds of usability testing with target users. All the users found the application useful. User testing revealed many issues and areas of improvements for the application. By iteratively prototyping and testing the Hidden History application with users, researchers created a mobile application that better supports the discovery of landscape history. The thesis concludes with suggestions for future work to further improve the application.
Spectral Lags of Gamma-Ray Bursts from Primordial Black Hole (PBH) Evaporations
Creators: name: Ukwatta, T. N.
name: MacGibbon, J. H.
name: Parke, W. C.
name: Dhuga, K. S.
name: Eskandarian, A.
name: Gehrels, N.
name: Maximon, L.
name: Morris, D. C.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Primordial Black Holes (PBHs), which may have been created in the early Universe, are predicted to be detectable by their Hawking radiation. PBHs with an initial mass of 5.0 * 10^14 g should be expiring today with a burst of high energy particles. Evaporating PBHs in the solar neighborhood are candidate Gamma-Ray Bursts (GRBs) progenitors. We propose spectral lag, which is the temporal delay between the high energy photon pulse and the low energy photon pulse, as a possible method to detect PBH evaporation events with the Fermi Gamma-ray Space Telescope Observatory.
description: 3 pages; Published in the proceedings of Huntsville 2008 symposium on GRBs; Indices in Equation 7 and 8 corrected
Felis margarita Loche 1858
Creators: name: Aidek, Ahmad E.
name: Ibrahim, Amir
name: Amr, Zuhair
name: Hutterer, Rainer
name: Kryštufek, Boris
name: Serra, Gianluca
name: Benda, Petr
name: Shkaky, Yesra
name: Barbanera, Filippo
name: Al-Sheikhly, Omar F.
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Carnivora
Felidae
Felis
Felis margarita

description: 91. Sand Cat, Felis margarita Loche, 1858
(Fig. 99)
(IUCN Red List: LC)
Subspecies: F. m. harrisoni Hemmer, Grubb & Groves, 1976.
Distribution: A nocturnal species widespread in Al-Badia to the south of Deir ez-Zor, but less common southwest to Palmyra and west to Jabal Al-Bishri (Fig. 100).
Previous records:Al-Talila, 25 km southeast of Palmyra (Serra et al. 2007), Deir ez-Zor towards ar- Rasafah (Aidek, 2010, Murdoch & Aidek 2012).
Recent records: Feidhat Ibn Muwyin’e, Khadhra Almay, ad-Dukhoul, Mueayzilah (south of Deir ez-Zor), as-Sarayim and Jabal Al-Bishri (2006–2012).
Remarks: The subspecies F. m. harrisoni Hemmer, Grubb & Groves, 1976 is confined to the arid plains of the Arabian Peninsula, Syria, Sinai and Iraq (Harrison & Bates 1991; Kitchener et al. 2017); however, it could be a synonym of F. m. thinobia (Ognev, 1926) (see Burgin et al. 2020).
description: Published as part of Aidek, Ahmad E., Ibrahim, Amir, Amr, Zuhair, Hutterer, Rainer, Kryštufek, Boris, Serra, Gianluca, Benda, Petr, Shkaky, Yesra, Barbanera, Filippo & Al-Sheikhly, Omar F., 2025, Checklist of Mammals of Syria, pp. 1-130 in Zootaxa 5580 (1) on page 94, DOI: 10.11646/zootaxa.5580.1.1, http://zenodo.org/record/14797597
On Levi-flat hypersurfaces with prescribed boundary
Creators: name: Dolbeault, Pierre
name: Tomassini, Giuseppe
name: Zaitsev, Dmitri
Publisher: name: arXiv
Year: 2009
Subjects: subject: Complex Variables (math.CV)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 32V25, 32D10

description: We address the problem of existence and uniqueness of a Levi-flat hypersurface $M$ in $C^n$ with prescribed compact boundary $S$ for $n\ge3$. The situation for $n\ge3$ differs sharply from the well studied case $n=2$. We first establish necessary conditions on $S$ at both complex and CR points, needed for the existence of $M$. All CR points have to be nonminimal and all complex points have to be "flat". Then, adding a positivity condition at complex points, which is similar to the ellipticity for $n=2$ and excluding the possibility of $S$ to contain complex $(n-2)$-dimensional submanifolds, we obtain a solution $M$ to the above problem as a projection of a possibly singular Levi-flat hypersurface in $R\times C^n$. It turns out that $S$ has to be a topological sphere with two complex points and with compact CR orbits, also topological spheres, serving as boundaries of the (possibly singular) complex leaves of $M$. There are no more global assumptions on $S$ like being contained in the boundary of a strongly pseudoconvex domain, as it was in case $n=2$. Furthermore, we show in our situation that any other Levi-flat hypersurface with boundary $S$ must coincide with the constructed solution.
description: 21 pages
Probing the Impact of Stellar Duplicity on Planet Occurrence
Creators: name: Eggenberger, A.
name: Udry, S.
name: Chauvin, G.
name: Beuzit, J. -L.
name: Lagrange, A. -M.
name: Mayor, M.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The presence of a stellar companion closer than ~100 AU is likely to affect planet formation and evolution. Yet, the precise effects and their actual impact on planet occurrence are still debated. To bring observational constraints, we have conducted with VLT/NACO a systematic adaptive optics survey for close stellar companions to 130 solar-type stars with and without planets. In this paper we present observational and preliminary statistical results from this survey. Observational results reveal about 20 true companions, of which 4 are new companions to planet-host stars. As to preliminary statistical results, they suggest that circumstellar giant planets are less frequent in binaries closer than ~100 AU than around single stars, in possible agreement with the theoretical studies that predict a negative impact of stellar duplicity on giant planet formation in binaries closer than ~100 AU. These statistical results will need confirmation, however, as they are severely limited by small sample sizes.
description: 4 pages, 3 figures, in Proceedings of the conference "Extreme Solar Systems", ASP Conference Series, Eds. D. Fischer, F. A. Rasio, S. E. Thorsett, and A. Wolszczan, Vol. 398, p. 179, 2008
Methods to detect bacterial contamination of blood products
Creators: name: List, SS
Publisher: name: University Of Tasmania
Year: 2023

description: Bacterial contamination of blood products presents an ongoing challenge to transfusion therapy. Contaminating bacteria are typically introduced in low numbers at the time of collection, but can proliferate during storage to reach >10‚ÄövÖœÄ colony forming units/mL (CFUhnL). The consequences of contamination include product wastage and transfusion-transmitted sepsis, but in Australia screening is conducted on only 1% of products by a slow and labour-intensive culture method. Accordingly, there is a need for a more practicable and rapid assay. The purposes of this study were to investigate the growth kinetics of bacteria in stored products, and to develop a rapid method to detect them. Pseudomonas, Staphylococcus and Yersinia species were inoculated into buffy coat platelet concentrates (PCs) and red cell concentrates (RCCs) at 10, 10¬¨‚â§ or 10¬¨‚â• CFU/mL and then stored at 22 ¬¨¬± 2¬¨‚àûC, agitated for PCs, or at 4 ¬¨¬± 2¬¨‚àûC, stationary for RCCs. Bacterial growth was monitored by plate count, and product spoilage (clumping or haemolysis) was noted. Even at the lowest inoculum, all bacterial species grew rapidly in PCs, although clumping was not observed until 3 to 5 days (>10‚ÄövÖ‚àëCFU/mL). In RCCs, all species were recovered after 36 days, but only P. fluorescens and Y. enterocolitica proliferated, reaching >10‚ÄövÖ‚àë CFU/mL before causing haemolysis. To detect bacterial contamination, we developed a PCR-based assay. A method using bead-beating and spin column purification extracted bacterial DNA from the densely cellular blood products in under 30 minutes. Using this template and primers targeting conserved regions of the bacterial 16S rRNA gene, a 1361-bp fragment was amplified from >30 bacterial species and strains tested at less than 10¬¨‚â• CFU/mL in all sample types. Examination of the PCR product using Southern blotting with specific oligonucleotide probes revealed that identification of the bacteria was also possible. Evaluation of this methodology using stored specimens from the kinetic study, showed that bacteria which had grown in blood products could be detected in 2 to 3 days for PCs and in 6 to 9 days for RCCs. Whilst these results matched our preferred time-frame, the sensitivity of detection was reduced in comparison to directly spiked samples. This reduced sensitivity may have been a consequence of long-term storage of the test samples. In conclusion, this study has shown that screening of blood products for bacteria using a universal PCR is feasible and practicable, and can be performed within a time frame required by the transfusion industry.
title: Investigating Biosynthetic Steps of an Angucycline Antifungal
Creators: name: Gladstone, S. Gabrielle
Publisher: name: Utah State University
Year: 2016

description: From the bacterium Streptomyces sp. SCC-2136 (ATCC 55186), two angucycline natural products are produced, designated Sch 47554 and Sch 47555. These compounds are produced through a type II polyketide biosynthetic pathway. The early biosynthetic steps to these molecules were confirmed. These include the minimal polyketide synthase (PKS), the C-9 keteoreductase, the first-ring aromatase, the subsequent ring cyclase, and two oxygenases. Also confirmed were the biosynthetic genes responsible for production of the first amicetose moiety, as well as the glycosyltransferase that creates a C-glycosidic bond between the angucyclic scaffold and the amicetose moiety, In confirming these patways, two new natural products were produced: GG31, an amitosylated rabelmycin, and GG53, rabelmycin hydroxylated at C-12b. Future work will be to understand the late biosynthetic steps and generate new angucyclines through combinatorial biosynthesis.
Ramsey method for Auger-electron interference induced by an attosecond twin pulse
Creators: name: Buth, Christian
name: Schafer, Kenneth J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We examine the archetype of an interference experiment for Auger electrons: two electron wave packets are launched by inner-shell ionizing a krypton atom using two attosecond light pulses with a variable time delay. This setting is an attosecond realization of the Ramsey method of separated oscillatory fields. Interference of the two ejected Auger-electron wave packets is predicted, indicating that the coherence between the two pulses is passed to the Auger electrons. For the detection of the interference pattern an accurate coincidence measurement of photo- and Auger electrons is necessary. The method allows one to control inner-shell electron dynamics on an attosecond timescale and represents a sensitive indicator for decoherence.
description: 5 pages, 5 figures, RevTeX4.1, revised
Smooth solutions to the abc equation: the xyz Conjecture
Creators: name: Lagarias, Jeffrey C.
name: Soundararajan, K.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11D61, 11P55

description: This paper studies integer solutions to the ABC equation A+B+C=0 in which none of A, B, C has a large prime factor. Set H(A,B, C)= max(|A|,|B|,|C|) and set the smoothness S(A, B, C) to be the largest prime factor of ABC. We consider primitive solutions (gcd(A, B, C)=1) having smoothness no larger than a fixed power p of log H. Assuming the abc Conjecture we show that there are finitely many solutions if p<1. We discuss a conditional result, showing that the Generalized Riemann Hypothesis (GRH) implies there are infinitely many primitive solutions when p>8. We sketch some details of the proof of the latter result.
description: 21 pages, presented at 26th Journees Arithmetiques, 2009; v2 added new examples 1.2, updated references; v3 changed title, more examples added, notation changes, v4 corrects misprints in Conj. 3.1, Thm. 4.3 statement, 25 pages
title: Effects of Ripening Processes on Chemistry of Tomato Volatiles
Creators: name: Shah, Bharat Manu
Publisher: name: Utah State University
Year: 1968

description: Investigations were carried out to isolate, identify, and to characterize, major volatile components of tomato fruit. Simultaneously, the confirmation was extended to the reported tomato volatiles. The volatile extracts from field- and artificially - ripe fruits were compared qualitatively as well as quantitatively. The changes which occurred in the volatile components of the fruit at the onset of senescence also were delineated.
A typical chromatogram from field-ripe tomatoes contained 60 peaks. The functional group properties of individual peaks were derived by chemical analysis. The short-chain (C3-C6) alcohols represented 10 per cent, aldehydes and ketones 32 per cent, and hydrocarbons, long-chain alcohols, and esters were in 58 per cent of the total amount of the volatiles from the field-ripe fruits.
Among alcohols and carbonyls, 3-pantanol, 1-nonanal, 1-decanal, and 1-dodecanal and among esters, propyl acetate, geranyl acetate, and cetronellyl butyrate were tentatively identified as volatile compounds of tomato fruit. Linalyl acetate, citronellyl butyrate, and geranyl butyrate were identified for the first time as the components of tomato volatiles.
Comparisons of volatile concentrations of field- and artificially - ripe tomatoes were made. IN the latter category of fruits the concentrations of 1-butanol, 3-pentanol, 2-methyl-3-hexanol, 3-methyl-butanal, 2,3-butanedione, propyl acetate, isopentyl butyrate, and other unidentified carbonyls were higher than those observed in the field-ripe fruits. These short-chain compounds, especially the C4-C6 moities, probably are formed in their maximum concentrations during the early stages of maturation. Under the conditions of restricted nutrient availability, sun light, and limited enzymatic activity during artificial ripening, the long-chain compounds are not sunthesized appreciably. The concentrations of some of these short-chain compounds may be to a level of masking the effects of more desirable compounds contributory to ripe tomato aroma. Notably, a pulp from the artificially ripe fruits lacked the characteristic ripe tomato aroma. The concentrations of the long-chain carbonyls and the terpene esters were low in the artificially ripe tomatoes as compared to the field-ripe ones. This may indicate major contribution of these compounds to ripe tomato aroma. An attempt has been made to theorize the mechanisms of the biogenesis of these components of tomato volatiles.
The concentrations of the volatiles from field-ripe and overripe tomatoes were compared. During overripening the amounts of alcohols, aldehydes, ketones, acetates, and propionates generally decreased. However, the concentrations of diacetyl and butyric acid esters increased. It was assumed that at the onset of senescence the metabolic pathways for the formation of diacetyl and butyric acid were highly operative in tomato fruit. The mechanisms of these pathways were postulated.
title: The Impact of Social Comparisons on Stereotype Threat for Black College Students Attending Predominantly White Colleges and Universities
Creators: name: Knowles, Odessia
Publisher: name: Utah State University
Year: 2016

description: This study was conducted to examine the impact of various social comparisons on stereotype threat for Black college students attending predominantly White colleges and universities (PWCUs). Additionally, explored was whether the student's Black racial identity would moderate the relationship between social comparison and academic achievement. Social comparison theory posits that to gain an accurate self-evaluation, individuals compare themselves to others who are similar; therefore, for Black college students attending PWCUs their comparison is most likely to occur with White students. Stereotype threat is being at risk of confirming a negative stereotype about one's group membership. Participants were 144 self-identified Black college students (including bi-and multiracially identified individuals), currently enrolled in college in the U.S. Data were collected in four phases, with the fourth phase utilizing a participant panel. The study was available for 7 months and was self-administered online through a popular survey software. Participants completed self-report measures, read statistics from the National Center for Education Statistics (NCES), completed two academic tasks, and viewed a slideshow presentation of images. Data patterns were similar for the White and neutral conditions and were similar for the matched minority and unmatched minority conditions; therefore, participants in the White comparison condition and neutral condition were grouped together to form one subordinate group (i.e., racial nonminority intervention group), and participants in the racially matched and unmatched minority comparison conditions were grouped together to form another subordinate group (i.e., racial minority intervention group). Results indicated a statistically significant effect for time by condition, F(1,142) = 4.776, p = .030, partial n2 = .033, with the racial nonminority group showing a greater impact on stereotype threat. Stereotype threat was positively impacted at a rate greater for the racial nonminority group than for the racial minority group.
title: Translating Temporal SQL to Nested SQL
Creators: name: Rani, Venkata
Publisher: name: Utah State University
Year: 2016

description: Sequenced and nonsequenced semantics are the two previously researched semantics for the evaluation of an operation in a temporal database such as a query or data modification. Sequenced semantics evaluates an operation in each time instant using only the data alive at that time. Nonsequenced semantics, in contrast, means that an operation explicitly references and manipulates the timestamps in the data.
In this thesis we propose a new framework that shows both semantics are variants of a general temporal semantics. We present the general semantics and show how additional semantics, such as preceding semantics can be realized. The semantics are specified using annotations.
The primary contribution of this theses is the translation from temporal SQL to nested SQL. We focus on SQL's SELECT statement, which is used to query data. Temporal SQL is SQL annotated with temporal semantics. Nested SQL is SQL for non-1NF data, with additional operations, such as COGROUP and FLATTEN to create and un-nest, respectively, bags of tuples (non-1NF data). This thesis develops a denotational semantics for translating from temporal to nested SQL. We implemented the denotational semantics for an SQLite ANTLR grammar, and the thesis also reports on the implementation.
title: Robust Intelligent Sensing and Control Multi Agent Analysis Platform for Research and Education
Creators: name: Maughan, Douglas Spencer
Publisher: name: Utah State University
Year: 2016

description: The aim of this thesis is the development and implementation of a controlled testing platform for the Robust Intelligent Sensing and Controls (RISC) Lab at Utah State University (USU). This will be an open source adaptable expandable robotics platform usable for both education and research. This differs from the many other platforms developed in that the entire platform software will be made open source. This open source software will encourage collaboration among other universities and enable researchers to essentially pick up where others have left off without the necessity of replicating months or even years of work. The expected results of this research will create a foundation for diverse robotics investigation at USU as well as enable attempts at novel methods of control, estimation and optimization. This will also contribute a complete software testbed setup to the already vibrant robotics open source research community.
This thesis first outlines the platform setup and novel developments therein. The second stage provides an example of how this has been used in education, providing an example curriculum implementing modern control techniques. The third section provides some exploratory research in trajectory control and state estimation of the tip of an inverted pendulum atop a small unmanned aerial vehicle as well as bearing-only cooperative localization experimentation. Finally, a conclusion and future work is discussed.
Volume entropy of Hilbert Geometries
Creators: name: Berck, Gautier
name: Bernig, Andreas
name: Vernicos, Constantin
Publisher: name: arXiv
Year: 2008
Subjects: subject: Differential Geometry (math.DG)
subject: Metric Geometry (math.MG)
subject: FOS: Mathematics
subject: 53C60, 53A20, 51F99

description: It is shown that the volume entropy of a Hilbert geometry associated to an $n$-dimensional convex body of class $C^{1,1}$ equals $n-1$. To achieve this result, a new projective invariant of convex bodies, similar to the centro-affine area, is constructed. In the case $n=2$, and without any assumption on the boundary, it is shown that the entropy is bounded above by $\frac{2}{3-d} \leq 1$, where $d$ is the Minkowski dimension of the extremal set of $K$. An example of a plane Hilbert geometry with entropy strictly between 0 and 1 is constructed.
description: 27 pages; minor changes
Fano-Kondo Spin Filter
Creators: name: Seridonio, A. C.
name: Souza, F. M.
name: Del Nero, J.
name: Shelykh, I. A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study spin-dependent conductance in a system composed of a ferromagnetic (FM) Scanning Tunneling Microscope (STM) tip coupled to a metallic host surface with an adatom. The Kondo resonance is taken into account via the Doniach-Sunjic spectral function. For short lateral tip-adatom distances and due to the interplay between Kondo physics, quantum interfering effects and the ferromagnetism of the tip, a spin-splitting of the Fano-Kondo line shape arises in the conductance. A strong enhancement of the Fano-Kondo profile for the majority spin component of the FM tip is observed. When the tip is placed on the adatom, this gives a conductance 100 % polarized for a particular range of bias voltage. The system thus can be used as a powerful generator of spin polarized currents.
description: 7 pages, 4 figures
title: The Intersection of School Ethnic Composition and Structure: Predicting Social and Academic Outcomes Among Latino Students
Creators: name: Pierce, Benjamin
Publisher: name: Utah State University
Year: 2016

description: Latino students are at risk for poor social and academic outcomes in American schools, yet contextual models for understanding this risk have been elusive. Considerable research has attempted to understand the relation between the ethnic composition of schools and outcomes for Latino students, with inconsistent findings. It was hypothesized that school ethnic composition would be differentially related to outcomes in this population of students, depending on other school contextual factors. Using secondary data from the National Longitudinal Study of Adolescent Health (Add Health), the present study examined individual and school-level moderators of the slopes of same-ethnicity representation (i.e., the percentage of same-ethnicity peers) and ethnic diversity predicting feelings of school belonging and the odds of high school completion among Latino youths. The results illustrate moderation of the slopes of ethnic composition variable depending on the socioeconomic status (SES) of schools as well as the extent of academic tracking. In low SES schools, same-ethnicity representation was positively related to both outcomes (belonging and completion) when academic tracking was low. In high SES schools, the slope of same-ethnicity representation predicting the odds of high school completion was negative under conditions of low ethnic diversity. Diversity was itself positively associated with high school completion across contexts, yet this relation was moderated by SES at the student level. Specifically, the association between diversity and completion diminished as student SES decreased, relative to the mean SES of students in a school. Altogether, the results suggest that conditions associated with reduced inequality among students, namely low systemic strain (higher SES) and low academic tracking, are related to more positive associations between both same-ethnicity representation and diversity, and social and academic outcomes for Latino students. Future research is advised to consider the intersection of school ethnic composition with other aspects of the school context as well as with characteristics of individual students.
Étale homotopy equivalence of rational points on algebraic varieties
Creators: name: Pal, Ambrus
Publisher: name: arXiv
Year: 2010
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 14F35, 14G05

description: It is possible to talk about the étale homotopy equivalence of rational points on algebraic varieties by using a relative version of the étale homotopy type. We show that over $p$-adic fields rational points are homotopy equivalent in this sense if and only if they are étale-Brauer equivalent. We also show that over the real field rational points on projective varieties are étale homotopy equivalent if and only if they are in the same connected component. We also study this equivalence relation over number fields and prove that in this case it is finer than the other two equivalence relations for certain generalised Châtelet surfaces.
description: New title, rewritten introduction, 48 pages. To appear in Algebra & Number Theory
title: Live Load Testing and Analysis of a 48-Year-Old Double Tee Girder Bridge
Creators: name: Torres, Victor J.
Publisher: name: Utah State University
Year: 2016

description: A 48-year-old prestressed double tee girder bridge located on Icy Springs road in Coalville, Utah, was tested for live load. The test measured strains, deflections and rotations. The instruments used for measuring the respective measurements were strain gages, deflectometers ("twangers") and tiltmeters.
From the recorded measurements a finite element model (FEM) was calibrated to validate the modeling techniques based on the test data. The FEM implemented two joint link elements to connect the flanges of the FEM deck to model the transverse load distribution of the bridge deteriorated shear connectors. The abutment restraints were modeled by one joint link elements. The deck and the stems were modeled using shell element.
After validating the modeling techniques, a parametric study was developed to study the prediction of FEM girder distribution factors (GDF). The FEM GDF predictions were compared to the prediction proposed by the American Association of State Highway and Transportation Officials (AASHTO) in the provision AASHTO LRFD 2010. The parametric study considered the variable parameters of span length, slab thickness, number of double tees, angle of skew, and stem spacing.
The AASHTO specification provides an inaccurate prediction, therefore a new statistical model was proposed to better predict GDF. Furthermore, rating factors based on different girder distribution factors were studied for the Icy Springs bridge. The bridge has a passing rate for operating level.
title: Fake Likers Detection on Facebook
Creators: name: Satya, Prudhvi Ratna Badri
Publisher: name: Utah State University
Year: 2016

description: In online social networking sites, gaining popularity has become important. The more popular a company is, the more profits it can make. A way to measure a company's popularity is to check how many likes it has (e.g., the company's number of likes in Facebook). To instantly and artificially increase the number of likes, some companies and business people began hiring crowd workers (aka fake likers) who send likes to a targeted page and earn money. Unfortunately, little is known about characteristics of the fake likers and how to identify them. To uncover fake likers in online social networks, in this work we (i) collect profiles of fake likers and legitimate likers by using linkage and honeypot approaches, (ii) analyze characteristics of fake likers and legitimate likers, (iii) propose and develop a fake liker detection approach, and (iv) thoroughly evaluate its performance against three baseline methods and under two attack models. Our experimental results show that our cassification model significantly outperformed the baseline methods, achieving 87.1% accuracy and 0.1 false positive rate and 0.14 false negative rate.
Impact of a Viscous Liquid Drop
Creators: name: Schroll, Robert D.
name: Josserand, Christophe
name: Zaleski, Stéphane
name: Zhang, Wendy W.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We simulate the impact of a viscous liquid drop onto a smooth dry solid surface. As in experiments, when ambient air effects are negligible, impact flattens the falling drop without producing a splash. The no-slip boundary condition at the wall produces a boundary layer inside the liquid. Later, the flattening surface of the drop traces out the boundary layer. As a result, the eventual shape of the drop is a "pancake" of uniform thickness except at the rim, where surface tension effects are significant. The thickness of the pancake is simply the height where the drop surface first collides with the boundary layer.
description: 5 pages, 3 figures, submitted to Physical Review Letters
title: A Vision-Based Bee Counting Algorithm for Electronic Monitoring of Langsthroth Beehives
Creators: name: Reka, Sai Kiran
Publisher: name: Utah State University
Year: 2016

description: An algorithm is presented to count bee numbers in images of Langsthroth hive entrances. The algorithm computes approximate bee counts by adjusting the brightness of the image, cropping a white or green area in the image, removing the background and noise from the cropped area, finding the total number of bee pixels, and dividing that number by the average number of pixels in a single bee. On 1005 images with green landing pads, the algorithm achieved an accuracy of 80 percent when compared to the human bee counting. On 776 images with white landing pads, the algorithm achieved an accuracy of 85% compared to the human bee counting.
Herpestes ichneumon
Creators: name: Aidek, Ahmad E.
name: Ibrahim, Amir
name: Amr, Zuhair
name: Hutterer, Rainer
name: Kryštufek, Boris
name: Serra, Gianluca
name: Benda, Petr
name: Shkaky, Yesra
name: Barbanera, Filippo
name: Al-Sheikhly, Omar F.
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Mammalia
Carnivora
Herpestidae
Herpestes
Herpestes ichneumon

description: 92. Egyptian Mongoose, Herpestes ichneumon (Linnaeus, 1758)
(IUCN Red List: LC)
Subspecies: H. i. ichneumon (Linnaeus, 1758).
Distribution: Uncommon; restricted to the coastal mountainous habitat and southwestern region (Fig. 101).
Previous records: Al-Quneitra (Shehab 2002), around Lattakia and Al-Ghota (Masseti 2009).
Recent records: Amreet (2010), Slenfeh (2014), Kersana and Sqoubin (2021), as-Sarsakiyah and ash-Sheir (2022).
description: Published as part of Aidek, Ahmad E., Ibrahim, Amir, Amr, Zuhair, Hutterer, Rainer, Kryštufek, Boris, Serra, Gianluca, Benda, Petr, Shkaky, Yesra, Barbanera, Filippo & Al-Sheikhly, Omar F., 2025, Checklist of Mammals of Syria, pp. 1-130 in Zootaxa 5580 (1) on page 94, DOI: 10.11646/zootaxa.5580.1.1, http://zenodo.org/record/14797597