cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Species invasion in the marine fouling communities of British Columbia : factors that influence invasion dynamics and how they may affect Botrylloides violaceus
Creators: name: Nelson, Jocelyn Christine
Publisher: name: University of British Columbia
Year: 2014

description: Species invasion has been recognized as a major threat to biodiversity. Knowledge of the factors that limit the establishment and spread of non-indigenous species (NIS), such as biotic resistance and unfavourable environmental conditions, are important to their effective management. To test the biotic resistance and environmental favourability hypotheses in the fouling communities of British Columbia (BC), 22 locations were compared using settlement tiles in a large-scale survey. Biotic resistance is believed to be stronger in more diverse communities, therefore NIS richness and abundance were compared to native species richness and environmental conditions to investigate their importance using generalized and linear mixed models. Invader taxonomic group may influence biotic resistance, and environmental tolerances vary by species, therefore factors that affected Botrylloides violaceus presence and abundance were investigated as a case study. The biotic resistance hypothesis was not supported for NIS richness or NIS abundance, but could not be fully discounted due to a trend toward a negative slope between native species richness and B. violaceus presence and abundance, and the absence of predator data. Environmental variables affected NIS: salinity had a positive influence on NIS richness, NIS abundance, and B. violaceus presence, and temperature had a positive effect on B. violaceus presence and abundance. Salinity had a positive impact on native species richness as well, supporting the environmental favourability hypothesis. This suggests that knowledge of relevant environmental conditions is more important for the management of invasive species than the species richness of vulnerable communities. Environmental conditions are not static, so species invasion must be considered in the context of climate change. To understand how climate change may influence species invasion, B. violaceus presence and abundance in BC were compared to a range of abiotic conditions. This comparison informed a GAMLSS model that used linear trends from historical shore station data to project potential abundance in BC forward 50 years. Overall, the abundance of B. violaceus in BC was projected to increase. A larger increase in B. violaceus abundance was forecast for locations where conditions increased into the range favourable for growth. If temperature and salinity become more favourable for B. violaceus, as projected, climate change could intensify the invasion.
Developing Vocabularies for the International OneGeochemistry Initiative: Specifying Locally, Harmonising Globally
Creators: name: Klöcking, Marthe
name: Profeta, Lucia
name: Prent, Alexander
name: Brownlee, Rowan
name: Wyborn, Lesley
name: Elger, Kirsten
name: Luzi-Helbing, Manja
name: Lehnert, Kerstin
name: Hezel, Dominik
Publisher: name: Zenodo
Year: 2023
Subjects: vocabularies
semantics

description: Over the last century enormous volumes of geochemical data have been acquired and thousands of globally distributed geochemical databases across the academic, government and industry sectors now exist. Unfortunately, there have been few efforts to standardise data or the diverse approaches for processing and modelling them, making it difficult to harness these data assets and contribute to global societal challenges (e.g., UN Sustainable Development Goals).

 OneGeochemistry is a new initiative that seeks to build and maintain consensus-driven standards to create a global network of findable and accessible geochemical data that is truly interoperable and reusable to both humans and machines. The highest priority is the development of internationally shared FAIR, machine-actionable vocabularies. Progressing towards community-agreed vocabularies, as well as their endorsement and governance, is difficult because geochemistry is spread across four science unions and tens of international/ national societies. Fortunately, geochemistry is one of eleven discipline case studies of the CODATA-led EU H2020 WorldFAIR project, which is exploring implementation of the FAIR principles across these case studies as well as leading the development of a global international framework for interdisciplinary interoperability and reusability of digital research objects.

 To start this process, four international geochemical databases (Astromat, AusGeochem, EarthChem, GEOROC) are now collaborating on a modular approach to develop shared terminologies. Where possible, terms from existing international vocabularies will be utilised (e.g., MINDAT, IUPAC chemical terminologies, DRUM). For remaining terms, local profiles will be published in Research Vocabularies Australia. The creation of a vocabularies record to be used by each database can converge databases to interoperability, with a vocabulary being a FAIR enabling resource (FER). FAIR Implementation Profiles are a tool to capture each of these FERs, and FER nanopublication URIs can help to enhance the machine readability and interoperability of local databases within a global network of geochemical data resources.
A search for optical bursts from RRAT J1819-1458: II. Simultaneous ULTRACAM-Lovell Telescope observations
Creators: name: Dhillon, V. S.
name: Keane, E. F.
name: Marsh, T. R.
name: Stappers, B. W.
name: Copperwheat, C. M.
name: Hickman, R. D. G.
name: Jordan, C. A.
name: Kerry, P.
name: Kramer, M.
name: Littlefair, S. P.
name: Lyne, A. G.
name: Mignani, R. P.
name: Shearer, A.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The Rotating RAdio Transient (RRAT) J1819-1458 exhibits ~3 ms bursts in the radio every ~3 min, implying that it is visible for only ~1 per day. Assuming that the optical light behaves in a similar manner, long exposures of the field would be relatively insensitive due to the accumulation of sky photons. A much better way of detecting optical emission from J1819-1458 would then be to observe with a high-speed optical camera simultaneously with radio observations, and co-add only those optical frames coincident with the dispersion-corrected radio bursts. We present the results of such a search, using simultaneous ULTRACAM and Lovell Telescope observations. We find no evidence for optical bursts in J1819-1458 at magnitudes brighter than i'=19.3 (5-sigma limit). This is nearly 3 magnitudes fainter than the previous burst limit, which had no simultaneous radio observations.
description: 6 pages, 3 figures, accepted for publication in MNRAS
Paracerapus Budnikova
Creators: name: Lowry, J. K.
name: Berents, Penelope B.
Publisher: name: Zenodo
Year: 1996
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Amphipoda
Ischyroceridae
Paracerapus

description: Paracerapus Budnikova Paracerapus Budnikova, 1989: 54. Diagnosis. Antenna 1: peduncular article 1 with anterior and posterior margins parallel; without accessory flagellum. Mandibles: left and right incisor, lacinia mobilis, accessory setal row and intermediate setae unknown; mandibular palp elongate, slender. Maxilla 1: outer plate, setal-teeth unknown. Gnathopod 2: carpochelate in male, subchelate in female. Peraeopods 3 to 7: dactyli 3 to 5 directed posteriorly, dactyli 6 to 7 directed anteriorly. Peraeopod 4: merus short, expanded posteriorly. Peraeopbd 5: coxa, female/ male size ratios unknown, without fringe of long setae; dactylus with large unguis, small accessory spines apparently absent. Peraeopod 6: dactylus with large unguis, small accessory spines apparently absent. Peraeopod 7: dactylus with large unguis, small accessory spines apparently absent. Pleopod 2: biramous, inner ramus not reduced. Pleopod 3: biramous, inner ramus not reduced. Uropod 2: possibly biramous, inner ramus vestigial. Uropod 3 with one vestigial ramus bearing small recurved spines. Type species. Cerapus polutovi Gurjanova, 1951. Species composition. Paracerapus currently contains 2 species: Paracerapus comparativus (Kudrjashov, 1975) and P. polutovi (Gurjanova, 1951). 剾浡牫献 In Paracerapus the dactyli on peraeopods 6 and 7 remain orientated anteriorly, a primitive condition. This, in addition to no accessory spines on the dactyli and an enlarged coxa 2, are the main differences which separate Paracerapus from its sister taxon Cerapus and other genera in the group.
description: Published as part of Lowry, J. K. & Berents, Penelope B., 1996, The Ericthonius group, a new perpective on an old problem (Crustacea: Amphipoda: Corophioidea), pp. 75-109 in Records of the Australian Museum 48 (1) on page 85, DOI: 10.3853/j.0067-1975.48.1996.281, http://zenodo.org/record/4654913
description: {"references": ["Gurjanova, E. F., 1951. Bokoplavy morej SSSR i sopredel'nykh vod (Amphipoda-Gammaridea). Akademiia Nauk SSSR, Opredeliteli po Faune SSSR 41: 1 - 1029."]}
Microscopic description of dissipative dynamics of a level crossing transition
Creators: name: Scala, M.
name: Militello, B.
name: Messina, A.
name: Vitanov, N. V.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We analyze the effect of a dissipative bosonic environment on the Landau-Zener-Stuckelberg-Majorana (LZSM) level crossing model by using a microscopic approach to derive the relevant master equation. For an environment at zero temperature and weak dissipation our microscopic approach confirms the independence of the survival probability on the decay rate that has been predicted earlier by the simple phenomenological LZSM model. For strong decay the microscopic approach predicts a notable increase of the survival probability, which signals dynamical decoupling of the initial state. Unlike the phenomenological model our approach makes it possible to study the dependence of the system dynamics on the temperature of the environment. In the limit of very high temperature we find that the dynamics is characterized by a very strong dynamical decoupling of the initial state - temperature-induced quantum Zeno effect.
description: 6 pages, 4 figures
Runanga J. L. Barnard 1961
Creators: name: Lowry, J. K.
name: Berents, Penelope B.
Publisher: name: Zenodo
Year: 1996
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Amphipoda
Ischyroceridae
Runanga

description: Runanga J.L. Barnard Runanga J.L. Barnard, 1961: 117. Diagnosis. Antenna 1: peduncular article 1 with proximoventral swelling; accessory flagellum scale-like. Mandibles: left incisor with 5 teeth; left lacinia mobilis with 5 teeth; left accessory setal row with 3 broad robust setae and 2 intermediate plumose setae;.right incisor with 5 teeth; right lacinia mobilis with 1 large tooth and minutely denticulate margin; right accessory setal row with 2 broad robust setae and 3 intermediate plumose setae; mandibular palp long, slender. Maxilla 1: outer plates each with 9 setal-teeth. Gnathopod 2: carpochelate in male, subchelate in female. Peraeopods 3 to 7: dactyli 3 to 5 directed posteriorly, dactyli 6 to 7 directed anteriorly. Peraeopod 4: merus long, not expanded posteriorly. Peraeopod 5: coxa in female larger than in male, with well-developed fringe of long setae; dactylus with large unguis and 2 small accessory spines. Peraeopod 6: dactylus with large unguis and 2 small accessory spines. Peraeopod 7: dactylus with large unguis and 1 small accessory spine. Pleopod 2: inner ramus reduced, I-articulate. Pleopod 3: reduced 1­ articulate ramus. Uropod 2 with one ramus. Uropod 3 with one vestigial ramus bearing small recurved spines. Type species. Runanga coxalis J.L. Barnard, 1961. Species composition. Runanga contains two species: R. coxalis J.L. Barnard, 1961 and R. wairoa McCain, 1969. Remarks. Budnikova (1989) pointed out that in addition to the vestigial accessory flagellum, the shape of the head and the telson help to distinguish Runanga. Two other characters (elongate merus on peraeopod 4 and strongly seto.se female coxa 5) also help to distinguish Runanga from other genera in the Cerapus clade.
description: Published as part of Lowry, J. K. & Berents, Penelope B., 1996, The Ericthonius group, a new perpective on an old problem (Crustacea: Amphipoda: Corophioidea), pp. 75-109 in Records of the Australian Museum 48 (1) on page 86, DOI: 10.3853/j.0067-1975.48.1996.281, http://zenodo.org/record/4654913
description: {"references": ["McCain, J., 1969. A new genus of deep sea amphipod (Gammaridea) belonging to the genus Runanga. New Zealand Journal of Marine and Freshwater Research 3: 17 - 19."]}
Entropy current for the relativistic Kadanoff-Baym equation and H-theorem in $O(N)$ theory with NLO self-energy of $1/N$ expansion
Creators: name: Nishiyama, A.
name: Ohnishi, A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We derive an expression of the kinetic entropy current in the nonequilibrium $O(N)$ scalar theory from the Schwinger-Dyson (Kadanoff-Baym) equation with the 1st order gradient expansion. We show that our kinetic entropy satisfies the H-theorem for the leading order of the gradient expansion with the next-to-leading order self-energy of the $1/N$ expansion in the symmetric phase, and that entropy production occurs as the Green's function evolves with an nonzero collision term. Entropy production stops at local thermal equilibrium where the collision term contribution vanishes and the maximal entropy state is realized. Next we also compare our entropy density with that in thermal equilibrium which is given from thermodynamic potential or equivalently 2 particle irreducible effective action. We find that our entropy density corresponds to that in thermal equilibrium with the next-to-leading order skeletons of the $1/N$ expansion if skeletons with energy denominators in momentum integral can be regularized appropriately. We have a possibility that memory correction terms remain in entropy current if not regularized.
description: 13 pages, 4 figures
Ago Aaloe välipäevik nr 16
Creators: name: Aaloe, Ago
Publisher: name: Tallinna Tehnikaülikooli Geoloogia Instituut
Year: 1967
Subjects: Silurian
Estonia
Hiiumaa Island
outcrops
drill cores
geological descriptions

description: Field notebook with  descriptions of Silurian Hiiumaa outcrops, and Saaremaa and West Estonia drill cores.
Independent components in spectroscopic analysis of complex mixtures
Creators: name: Monakhova, Yulia B.
name: Astakhov, Sergey A.
name: Kraskov, Alexander
name: Mushtakova, Svetlana P.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: We applied two methods of "blind" spectral decomposition (MILCA and SNICA) to quantitative and qualitative analysis of UV absorption spectra of several non-trivial mixture types. Both methods use the concept of statistical independence and aim at the reconstruction of minimally dependent components from a linear mixture. We examined mixtures of major ecotoxicants (aromatic and polyaromatic hydrocarbons), amino acids and complex mixtures of vitamins in a veterinary drug. Both MICLA and SNICA were able to recover concentrations and individual spectra with minimal errors comparable with instrumental noise. In most cases their performance was similar to or better than that of other chemometric methods such as MCR-ALS, SIMPLISMA, RADICAL, JADE and FastICA. These results suggest that the ICA methods used in this study are suitable for real life applications. Data used in this paper along with simple matlab codes to reproduce paper figures can be found at http://www.klab.caltech.edu/~kraskov/MILCA/spectra
description: 22 pages, 4 tables, 6 figures
Rein Einasto välipäevik nr 1
Creators: name: Aaloe, Ago
Publisher: name: Tallinna Tehnikaülikooli Geoloogia Instituut
Year: 1958
Subjects: Silurian
Estonia
Saaremaa
outcrops
drill cores
geological descriptions

description: Field notebook with descriptions of Silurian outcrops and drill cores in Saaremaa
Rein Einasto välipäevik nr 2
Creators: name: Einasto, Rein
Publisher: name: Tallinna Tehnikaülikooli Geoloogia Instituut
Year: 1959
Subjects: Silurian
Estonia
Saaremaa
outcrops
drill cores
geological descriptions

description: Field notebook with descriptions of Silurian outcrops and drill cores in Saaremaa
Controlled generation and manipulation of vortex dipoles in a Bose-Einstein condensate
Creators: name: Aioi, Tomohiko
name: Kadokura, Tsuyoshi
name: Kishimoto, Tetsuo
name: Saito, Hiroki
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We propose methods to generate and manipulate vortex dipoles in a Bose-Einstein condensate using Gaussian beams of red or blue-detuned laser. Velocity-controlled vortex dipoles are shown to be created and launched by a red-detuned beam and by two blue-detuned beams. Critical velocities for the vortex nucleation are investigated. The launched vortex dipoles can be trapped, curved, accelerated, and decelerated using Gaussian beams. Collisions between vortex dipoles are demonstrated.
description: 9 pages, 10 figures
QCD sum rules and thermal properties of Charmonium in the vector channel
Creators: name: Dominguez, C. A.
name: Loewe, M.
name: Rojas, J. C.
name: Zhang, Y.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The thermal evolution of the hadronic parameters of charmonium in the vector channel, i.e. the J/psi resonance mass, coupling (leptonic decay constant), total width, and continuum threshold is analyzed in the framework of thermal Hilbert moment QCD sum rules. The continuum threshold $s_0$, as in other hadronic channels, decreases with increasing temperature until the PQCD threshold s_0 = 4, m_Q^2 is reached at T \simeq 1.22T_c (m_Q is the charm quark mass) and the J/psi mass is essentially constant in a wide range of temperatures. The other hadronic parameters behave in a very different way from those of light-light and heavy-light quark systems. The total width grows with temperature up to T \simeq 1.04T_c beyond which it decreases sharply with increasing T. The resonance coupling is also initially constant beginning to increase monotonically around T \simeq T_c. This behavior strongly suggests that the J/psi resonance might survive beyond the critical temperature for deconfinement, in agreement with lattice QCD results.
description: 4 pages, two figures, contribution to QCD 10, Montpellier 28th June-2nd July 2010
A Secure Communication Game with a Relay Helping the Eavesdropper
Creators: name: Yuksel, Melda
name: Liu, Xi
name: Erkip, Elza
Publisher: name: arXiv
Year: 2011
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: In this work a four terminal complex Gaussian network composed of a source, a destination, an eavesdropper and a jammer relay is studied under two different set of assumptions: (i) The jammer relay does not hear the source transmission, and (ii) The jammer relay is causally given the source message. In both cases the jammer relay assists the eavesdropper and aims to decrease the achievable secrecy rates. The source, on the other hand, aims to increase it. To help the eavesdropper, the jammer relay can use pure relaying and/or send interference. Each of the problems is formulated as a two-player, non-cooperative, zero-sum continuous game. Assuming Gaussian strategies at the source and the jammer relay in the first problem, the Nash equilibrium is found and shown to be achieved with mixed strategies in general. The optimal cumulative distribution functions (cdf) for the source and the jammer relay that achieve the value of the game, which is the Nash equilibrium secrecy rate, are found. For the second problem, the Nash equilibrium solution is found and the results are compared to the case when the jammer relay is not informed about the source message.
description: 13 pages, 11 figures, to appear in IEEE Transactions on Information Forensics and Security, Special Issue on Using the Physical Layer for Securing the Next Generation of Communication Systems. This is the journal version of cs.IT:0911.0089
NAVOIY ASARLARIDA XAT MOTIVI ("FARHOD VA SHIRIN" DOSTONI MISOLIDA)
Creators: name: Boltayeva, Iroda
Publisher: name: Zenodo
Year: 2025

description: Alisher Navoiy ijodida xat motivi nafaqat muloqot vositasi, balki qahramonlarning ichki kechinmalari va taqdir sinovlarini aks ettiruvchi badiiy detal sifatida gavdalanadi. “Farhod va Shirin” dostonida xatlar sevgi, umid va iztirob timsoliga aylanib, syujet rivojida muhim rol o‘ynaydi. Farhod va Shirin maktublar orqali bir-birlariga nafaqat so‘z, balki yurak nidosini ham yetkazadilar. Xatlar voqealar rivojiga ta’sir ko‘rsatib, qahramonlarning ruhiy holatini ochib berishga xizmat qiladi. Navoiy xatni shunchaki yozishma emas, balki sevgi va taqdir sinovlarining poetik ifodasi sifatida tasvirlaydi. Mazkur maqolada doston syujetida xat motivining o‘rni va uning badiiy talqini tahlil qilinadi.
Semi-supervised Teeth Segmentation
Creators: name: Yaqi Wang
name: Shuai Wang
name: Ye, Fan
name: Weiwei Cui
name: Yifan Zhang
name: Liaoyuan Zeng
name: Xingru Huang
Publisher: name: Zenodo
Year: 2023
Subjects: subject: Teeth segmentation
subject: Panoramic X-ray image
subject: Cone Beam Computed Tomography volume
subject: Dentistry
subject: FOS: Clinical medicine
subject: MICCAI Challenges

description: Computer-aided design (CAD) tools are increasingly popular in modern dental practice, particularly for treatment planning or comprehensive prognosis evaluation. In particular, the 2D panoramic X-ray image is an efficient way for dentists to determine invisible caries, impacted teeth and supernumerary teeth among children. Additionally,
 the 3D dental cone-beam computed tomography (CBCT) examination has been widely applied in orthodontics and endodontics due to its low ray quantity. To the best of our knowledge, there is no open-access 2D public dataset for children’s teeth and no open 3D dental CBCT dataset, which limits the development of deep learning algorithms for segmenting teeth and automatically analyzing diseases. The Semi-TeethSeg challenge will release more than 2,000 labelled panoramic X-ray images and 5,000 labelled CBCT slices to enable researchers to accurately segment teeth regions using deep-learning approaches. To encourage the study of tooth feature representation based on a large amount of raw dental data, we further release unlabelled 2D and 3D dental images including more than 1,000 panoramic X-ray images and 30,000 CBCT slices. Several robust semi-supervised-based tooth segmentation methods will be proposed via the Semi-TeethSeg challenge to facilitate the development of CAD-based dentistry.
Developing indicators for human well-being in an ecosystem-based management context : a case study of Haida Gwaii
Creators: name: Kent, Hannah Patterson
Publisher: name: University of British Columbia
Year: 2014

description: Ecosystem-based management (EBM) includes both ecological integrity and human well-being, although it is not clear how human well-being should be measured in an EBM context. Despite efforts to view EBM holistically, the human component is often overlooked or reduced to economic indicators that do not capture the full range of values held by the people affected by EBM policies. The purpose of this case study is to explore, in a region recently participating in EBM planning and policy implementation, human well-being indicators of importance to local residents. Haida Gwaii, an island archipelago located approximately 90 km off the coast of British Columbia (B.C.), Canada provides a particularly compelling case study, as the implementation of EBM on Haida Gwaii includes co-management between the Haida Nation and the Province of B.C. Using semi-structured interviews and constructivist grounded theory methodology, I identified seven categories important for human well-being on Haida Gwaii: employment and economic stability; relationship with the land, ocean and air; health; governance and access to services; culture and community; educated and engaged citizens; and overall well-being. Within these general categories, I also identified 46 specific human well-being indicators important to measure on Haida Gwaii. In addition, I identified concerns study participants had with human well-being indicators developed on the North and Central Coast of British Columbia. The important categories, sub-categories and indicators were integrated to produce three theoretical concepts that characterize what is important for human well-being on Haida Gwaii: 1) Relationship with the land, ocean and air 2) Access to benefits from natural resource development, and 3) Building resilient communities and human capital. Communities working to develop human well-being indicators in similar EBM contexts may find these concepts useful in their work.
Eta-nucleon coupling constant in QCD with SU(3) symmetry breaking
Creators: name: Singh, Janardan P.
name: Lee, Frank X.
name: Wang, Lai
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the $η$NN coupling constant using the method of QCD sum rules starting from the vacuum-to-eta correlation function of the interpolating fields of two nucleons. The matrix element of this correlation has been taken with respect to nucleon spinors to avoid unwanted pole contribution. The SU(3)-flavor symmetry breaking effects have been accounted for via the $η$-mass, s-quark mass and eta decay constant to leading order. Out of the four sum rules obtained by taking the ratios of the two sum rules in conjunction with the two sum rules in nucleon mass, three are found to give mutually consistent results. We find the SU(3) breaking effects significant, as large as 50% of the SU(3) symmetric part.
description: 13 pages, 12 figures
Rein Einasto välipäevik nr 3
Creators: name: Einasto, Rein
Publisher: name: Tallinna Tehnikaülikooli Geoloogia Instituut
Year: 1961
Subjects: Silurian
Podolia
Estonia
Saaremaa
outcrops
drill cores
geological descriptions

description: Field notebook with descriptions of Silurian outcrops and drill cores in Saaremaa and Podolia
M-Learning: A New Paradigm of Learning Mathematics in Malaysia
Creators: name: Mahamad, Saipunidzam
name: Ibrahim, Mohammad Noor
name: Taib, Shakirah Mohd
Publisher: name: arXiv
Year: 2010
Subjects: subject: Multimedia (cs.MM)
subject: Computers and Society (cs.CY)
subject: Mathematical Software (cs.MS)
subject: FOS: Computer and information sciences
subject: K.3.1

description: M-Learning is a new learning paradigm of the new social structure with mobile and wireless technologies.Smart school is one of the four flagship applications for Multimedia Super Corridor (MSC) under Malaysian government initiative to improve education standard in the country. With the advances of mobile devices technologies, mobile learning could help the government in realizing the initiative. This paper discusses the prospect of implementing mobile learning for primary school students. It indicates significant and challenges and analysis of user perceptions on potential mobile applications through a survey done in primary school context. The authors propose the m-Learning for mathematics by allowing the extension of technology in the traditional classroom in term of learning and teaching.
description: Wireless technology, teaching mathematics, flexible learning, m-Learning
The effect of transcription factor YY1 and small molecules on HIV-1 expression
Creators: name: Bernhard, Wendy
Publisher: name: University of British Columbia
Year: 2014

description: Current therapies to treat patients infected with HIV-1 do not represent a cure. The virus persists as a latent chromosomally integrated provirus in unstimulated helper T-cells that is unaffected by current drugs and can become reactivated upon stimulation of the T-cell receptor. Much research is currently focused on understanding mechanisms that control HIV-1 latency and devising ways to eliminate latent viral populations. In this thesis, I characterize a protein, YY1 that is involved in establishing HIV-1 latency, examine the role of a histone methyltransferase inhibitor on activation of the HIV-1 LTR, and identify lariat peptides that recognize TFII-I to examine the role of an interaction between USF1 and TFII-I on HIV-1 transcription. The transcription factor YY1 has been shown to promote repressive chromatin modifications by the recruitment of histone deacetylases (HDACs). In this thesis, I identify a novel binding site for YY1 on the HIV-1 LTR, near the highly conserved RBEIII element immediately upstream of the enhancer, and show that YY1 dissociates from the LTR in vivo upon T-cell activation. Overexpression of YY1 causes an increase in HIV-1 expression, which illustrates the importance of this factor for establishment of latency. I also show that an inhibitor of the histone methlytransferase SUV39H1, chaetocin, causes induction of latent HIV-1 expression, with minimal cell toxicity and without T-cell activation. The effect of chaetocin is amplified synergistically in combination with histone deacetylase (HDAC) inhibitors. These results indicate that drugs with properties similar to chaetocin may provide a therapy to purge cells of latent HIV-1, possibly in combination with other chromatin remodeling drugs. In a parallel objective, I sought to identify cyclic lariat peptide inhibitors of TFII-I, an additional factor shown to be involved in expression of HIV-1 transcription. In these studies, I identified a lariat peptide that binds the R4 domain of TFII-I using a yeast two-hybrid assay. Expression of this peptide in cells was found to activate the HIV-1 LTR 2-fold. This result demonstrates that lariat peptide inhibitors might offer an alternative to small molecule compounds as potential therapies targeting the latent reservoir.
Rein Einasto välipäevik nr 4
Creators: name: Einasto, Rein
Publisher: name: Tallinna Tehnikaülikooli Geoloogia Instituut
Year: 1963
Subjects: Ordovician
Estonia
Leningrad oblast
Lithuania
outcrops
drill cores
geological descriptions

description: Field notebook with descriptions of Ordovician outcrops in Estonia, Leningrad oblast and drill cores in Estonia and Lithuania
Nucleon form factors: the space-time connection
Creators: name: Pacetti, S.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Analyticity of nucleon form factors allows to derive sum rules which, using space-like and time-like data as input, can give unique information about behaviors in energy regions not experimentally accessible. Taking advantage from new time-like data on proton-antiproton differential cross section and hence the possibility to separate electric and magnetic form factors also in the time-like region, we verify the consistency of the asymptotic behavior predicted by the perturbative QCD for the proton magnetic form factor.
description: 3 pages, 1 figure. Prepared for "PHIPSI09" Conference, October 13-16, 2009 - IHEP, Beijing, China
Chiral magnetic wave at finite baryon density and the electric quadrupole moment of quark-gluon plasma in heavy ion collisions
Creators: name: Burnier, Yannis
name: Kharzeev, Dmitri E.
name: Liao, Jinfeng
name: Yee, Ho-Ung
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Chiral Magnetic Wave (CMW) is a gapless collective excitation of quark-gluon plasma in the presence of external magnetic field that stems from the interplay of Chiral Magnetic (CME) and Chiral Separation Effects (CSE); it is composed by the waves of the electric and chiral charge densities coupled by the axial anomaly. We consider CMW at finite baryon density and find that it induces the electric quadrupole moment of the quark-gluon plasma produced in heavy ion collisions: the "poles" of the produced fireball (pointing outside of the reaction plane) acquire additional positive electric charge, and the "equator" acquires additional negative charge. We point out that this electric quadrupole deformation lifts the degeneracy between the elliptic flows of positive and negative pions leading to $v_2(π^+) < v_2(π^-)$, and estimate the magnitude of the effect.
description: 4 pages, 3 figures
Rein Einasto välipäevik nr 6
Creators: name: Einasto, Rein
Publisher: name: Tallinna Tehnikaülikooli Geoloogia Instituut
Year: 1970
Subjects: Silurian
Estonia
Saaremaa
Kaugatuma drill core
geological description

description: Field notebook with descriptions of Kaugatuma Stage in Kaugatuma 509 drill core
Additional file 1 of Effects of foot and ankle mobilisations combined with home stretches in people with diabetic peripheral neuropathy: a proof-of-concept RCT
Creators: name: Lepesis, Vasileios
name: Paton, Joanne
name: Rickard, Alec
name: Latour, Jos M.
name: Marsden, Jonathan
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Biological Sciences not elsewhere classified
subject: Science Policy

description: Additional file 1. Home Exercise Programme.
Rein Einasto välipäevik nr 8
Creators: name: Einasto, Rein
Publisher: name: Tallinna Tehnikaülikooli Geoloogia Instituut
Year: 1970
Subjects: Silurian
West Estonia
Saaremaa
geological descriptions

description: Field notebook with descriptions of Silurian outcrops in West Estonia and Saaremaa (from 1970-1984)
Generalized q-Onsager Algebras and Dynamical K-matrices
Creators: name: Belliard, S.
name: Fomin, V.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: A procedure to construct $K$-matrices from the generalized $q$-Onsager algebra $\cO_{q}(\hat{g})$ is proposed. This procedure extends the intertwiner techniques used to obtain scalar (c-number) solutions of the reflection equation to dynamical (non-c-number) solutions. It shows the relation between soliton non-preserving reflection equations or twisted reflection equations and the generalized $q$-Onsager algebras. These dynamical $K$-matrices are important to quantum integrable models with extra degrees of freedom located at the boundaries: for instance, in the quantum affine Toda field theories on the half-line they yield the boundary amplitudes. As examples, the cases of $\cO_{q}(a^{(2)}_{2})$ and $\cO_{q}(a^{(1)}_{2})$ are treated in details.
Second and Third Harmonic Generation in Metal-Based Nanostructures
Creators: name: Scalora, M.
name: Vincenti, M. A.
name: de Ceglia, D.
name: Roppo, V.
name: Centini, M.
name: Akozbek, N.
name: Bloemer, M. J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We present a new theoretical approach to the study of second and third harmonic generation from metallic nanostructures and nanocavities filled with a nonlinear material, in the ultrashort pulse regime. We model the metal as a two-component medium, using the hydrodynamic model to describe free electrons, and Lorentz oscillators to account for core electron contributions to both the linear dielectric constant and to harmonic generation. The active nonlinear medium that may fill a metallic nanocavity, or be positioned between metallic layers in a stack, is also modeled using Lorentz oscillators and surface phenomena due to symmetry breaking are taken into account. We study the effects of incident TE- and TM-polarized fields and show that a simple re-examination of the basic equations reveals additional exploitable dynamical features of nonlinear frequency conversion in plasmonic nanostructures.
description: 33 pages, including 11 figures and 74 references; corrected affiliations and some typos
Rein Einasto välipäevik nr 9
Creators: name: Einasto, Rein
Publisher: name: Tallinna Tehnikaülikooli Geoloogia Instituut
Year: 1972
Subjects: Silurian
Estonia
Kihnu and Ruhnu drill cores
geological descriptions

description: Field notebook with descriptions of Silurian in Kihnu and Ruhnu drill cores
Analysis of the MOST light curve of the heavily spotted K2IV component of the single-line spectroscopic binary II Pegasi
Creators: name: Siwak, Michal
name: Rucinski, Slavek M.
name: Matthews, Jaymie M.
name: Kuschnig, Rainer
name: Guenther, David B.
name: Moffat, Anthony F. J.
name: Sasselov, Dimitar
name: Weiss, Werner W.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Continuous photometric observations of the visible component of the single-line, K2IV spectroscopic binary II Peg carried out by the MOST satellite during 31 consecutive days in 2008 have been analyzed. On top of spot-induced brightness modulation, eleven flares were detected of three distinct types characterized by different values of rise, decay and duration times. The flares showed a preference for occurrence at rotation phases when the most spotted hemisphere is directed to the observer, confirming previous similar reports. An attempt to detect a grazing primary minimum caused by the secondary component transiting in front of the visible star gave a negative result. The brightness variability caused by spots has been interpreted within a cold spot model. An assumption of differential rotation of the primary component gave a better fit to the light curve than a solid-body rotation model.
description: Accepteed to MNRAS
Rein Einasto välipäevik nr 10
Creators: name: Einasto, Rein
Publisher: name: Tallinna Tehnikaülikooli Geoloogia Instituut
Year: 1972
Subjects: Silurian
Estonia
Saaremaa
drill cores
geological descriptions

description: Field notebook with descriptions of Silurian in small drill cores in Saaremaa
Nonreciprocal switching thresholds in coupled nonlinear microcavities
Creators: name: Grigoriev, Victor
name: Biancalana, Fabio
Publisher: name: arXiv
Year: 2011
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: A novel concept for the design of nonlinear optical diodes is proposed which uses the multistability of coupled nonlinear microcavities and the dependence of switching thresholds on the direction of incidence. A typical example of such diode can be created by combining two mirror symmetric microcavities where modes of the opposite parity dominate. It is shown that a strong nonreciprocal behavior can be achieved together with a negligible insertion loss. To describe the dynamical properties of such systems, a model based on the coupled mode theory is developed, and a possible implementation in the form of multilayered structures is considered.
description: 3 pages, 3 figures
BKM superalgebras from counting dyons in N=4 supersymmetric type II compactifications
Creators: name: Govindarajan, Suresh
name: Jatkar, Dileep P.
name: Krishna, K. Gopala
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Number Theory (math.NT)
subject: Representation Theory (math.RT)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We study the degeneracy of quarter BPS dyons in N =4 type II compactifications of string theory. We find that the genus-two Siegel modular forms generating the degeneracies of the quarter BPS dyons in the type II theories can be expressed in terms of the genus-two Siegel modular forms generating the degeneracies of quarter BPS dyons in the CHL theories and the heterotic string. This helps us in understanding the algebra structure underlying the degeneracy of the quarter BPS states. The Conway group, Co_1, plays a role similar to Mathieu group, M_{24}, in the CHL models with eta quotients appearing in the place of eta products. We construct BKM Lie superalgebra structures corresponding to Z_N (for N=2,3,4) orbifolds of the type II string compactified on a six-torus.
description: 21 pages
Spitzer's view on aromatic and aliphatic hydrocarbon emission in Herbig Ae stars
Creators: name: Acke, B.
name: Bouwman, J.
name: Juhash, A.
name: Henning, Th.
name: Ancker, M. E. van den
name: Meeus, G.
name: Tielens, A. G. G. M.
name: Waters, L. B. F. M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The chemistry of astronomical hydrocarbons, responsible for the well-known infrared emission features detected in a wide variety of targets, remains enigmatic. Here we focus on the group of young intermediate-mass Herbig Ae stars. We have analyzed the aliphatic and polycyclic aromatic hydrocarbon (PAH) emission features in the infrared spectra of a sample of 53 Herbig Ae stars, obtained with the Infrared Spectrograph aboard the Spitzer Space Telescope. We confirm that the PAH-to-stellar luminosity ratio is higher in targets with a flared dust disk. However, a few sources with a flattened dust disk still show relatively strong PAH emission. Since PAH molecules trace the gas disk, this indicates that gas disks may still be flared, while the dust disk has settled due to grain growth. There are indications that the strength of the 11.3 um feature also depends on dust disk structure, with flattened disks being less bright in this feature. We confirm that the CC bond features at 6.2 and 7.8 um shift to redder wavelengths with decreasing stellar effective temperature. Moreover, we show that this redshift is accompanied by a relative increase of aliphatic CH emission and a decrease of the aromatic 8.6 um CH feature strength. Cool stars in our sample are surrounded by hydrocarbons with a high aliphatic/aromatic CH ratio and a low aromatic CH/CC ratio, and vice versa for the hot stars. We conclude that, while the overall hydrocarbon emission strength depends on the dust disk's geometry, the relative differences seen in the IR emission features in disks around Herbig Ae stars are mainly due to chemical differences of the hydrocarbon molecules induced by the stellar UV field. Strong UV flux reduces the aliphatic component and emphasizes the spectral signature of the aromatic molecules in the IR spectra.
description: 37 pages, 16 figures, accepted for publication in ApJ
Spin relaxation and linear-in-electric-field frequency shift in an arbitrary, time-independent magnetic field
Creators: name: Clayton, Steven M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: A method is presented to calculate the spin relaxation times T1, T2 due to a non-uniform magnetic field, and the linear-in-electric-field precession frequency shift δωE when an electric field is present, in the diffusion approximation for spins confined to a rectangular cell. It is found that the rectangular cell geometry admits of a general result for T1, T2, and δωE in terms of the spatial cosine-transform components of the magnetic field.
description: 9 pages
Impact of climate chance on viticulture in Luxembourg
Creators: name: Molitor, Daniel
name: Junk, Jürgen
Publisher: name: Zenodo
Year: 2019

description: The presentation focuses on (i) observed and projected climatic changes in the region and (ii) the impact of climate change on viticulture in Luxembourg and (iii) potential adaptation strategies.

Climate change has been observed in the Luxembourgish Moselle valley and grape growers are aware of it. So far, increased temperatures led to higher grape maturity and higher potential wine quality. Heat consumption does not represent a limiting factor for sufficient grape maturity anymore.

On the other hand, observed and projected temperature increase as well as increases of the frequency of extreme events are introducing new challenges for the grape-growers such as drought stress, severe epidemics of fungal diseases as well as changes in wine typicity.

Potential adaptation strategies will be discussed.
Examination of preserved motor pathways in persons with motor-complete spinal cord injury
Creators: name: Squair, Jordan W.
Publisher: name: University of British Columbia
Year: 2014

description: Previous work has demonstrated that mobility is consistently one of the most, if not the most important function persons with a spinal cord injury (SCI) desire following their injury. By increasing functional mobility, even slightly, there may be improved independence, leading to improved quality of life. While the current clinical examination for determining the level and severity of an SCI has proven to be very reliable and useful for standardizing SCI classification, it still has significant limitations that may limit a patient’s future mobility. For example, the measures used to assess motor function in the limb following a SCI may not be sensitive enough to detect minimal levels of preserved motor function, as they are limited to manual palpation and/or visual inspection. Furthermore, the extent of preservation of trunk musculature and the vestibulospinal pathway following an SCI remains unclear. Therefore, there is a need for more sensitive measures of remaining motor activity and a need to examine the integrity of individual motor pathways. Using transcranial magnetic stimulation (TMS) and vestibular evoked myogenic potentials (VEMPs), this thesis examined the integrity of the cortico- and vestibulospinal pathways in 16 persons with a motor-complete SCI and 16 able-bodied (AB) matched controls. Despite being clinically classified as motor-complete, persons with an SCI showed some observable muscle activity to cortico- and vestibulospinal stimulation, as well as in response to voluntary contractions. In general, the corticospinal responses in the SCI group were delayed compared to their AB matched controls. The muscle activity detected using TMS related to voluntary activation; however, TMS appears to detect preserved muscle activity below that which can be voluntarily activated. Overall, the results from this thesis provide evidence for the use of TMS and VEMPs to assist in determining the neurophysiological integrity of various motor pathways in persons with a motor-complete SCI. Using these techniques may provide clinicians with more accurate information about the state of various motor pathways and may offer a method to more accurately target rehabilitation.
Double-degenerate Bose-Fermi mixture of strontium
Creators: name: Tey, Meng Khoon
name: Stellmer, Simon
name: Grimm, Rudolf
name: Schreck, Florian
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We report on the attainment of a spin-polarized Fermi sea of 87-Sr in thermal contact with a Bose-Einstein condensate (BEC) of 84-Sr. Interisotope collisions thermalize the fermions with the bosons during evaporative cooling. A degeneracy of T/T_F=0.30(5) is reached with 2x10^4 87-Sr atoms together with an almost pure 84-Sr BEC of 10^5 atoms.
description: 5 pages, 5 figures
Additional file 1 of Use of health services and medication use, new comorbidities, and mortality in patients with chronic diseases who did not contract COVID-19 during the first year of the pandemic: a retrospective study and comparison by sex
Creators: name: Mahuela, Liliana
name: Oliván-Blázquez, Bárbara
name: Lear-Claveras, Ana
name: Méndez-López, Fátima
name: Samper-Pardo, Mario
name: León-Herrera, Sandra
name: Magallón-Botaya, Rosa
name: Sánchez-Calavera, María Antonia
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Mental Health

description: Supplementary Material 1