cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Gravity induced neutrino-antineutrino oscillation: CPT and lepton number non-conservation under gravity
Creators: name: Mukhopadhyay, Banibrata
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We introduce a new effect in the neutrino oscillation phase which shows the neutrino-antineutrino oscillation is possible under gravity even if the rest masses of the corresponding eigenstates are same. This is due to CPT violation and possible to demonstrate if the neutrino mass eigenstates are expressed as a combination of neutrino and antineutrino eigenstates, as of the neutral kaon system, with the plausible breaking of lepton number conservation. For Majorana neutrinos, this oscillation is expected to affect significantly the inner edge of neutrino dominated accretion disks around a compact object by influencing the neutrino sphere which controls the accretion dynamics, and then the related type-II supernova evolution and the r-process nucleosynthesis. On the other hand, in early universe, in presence of various lepton number violating processes, this oscillation, we argue, might lead to neutrino asymmetry which resulted baryogenesis from the B-L symmetry by electro-weak sphaleron processes.
description: 15 pages; Accepted for publication in Classical and Quantum Gravity
Potts models in the continuum. Uniqueness and exponential decay in the restricted ensembles
Creators: name: De Masi, A.
name: Merola, I.
name: Presutti, E.
name: Vignaud, Y.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Probability (math.PR)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: In this paper we study a continuum version of the Potts model. Particles are points in R^d, with a spin which may take S possible values, S being at least 3. Particles with different spins repel each other via a Kac pair potential. In mean field, for any inverse temperature there is a value of the chemical potential at which S+1 distinct phases coexist. For each mean field pure phase, we introduce a restricted ensemble which is defined so that the empirical particles densities are close to the mean field values. Then, in the spirit of the Dobrushin Shlosman theory, we get uniqueness and exponential decay of correlations when the range of the interaction is large enough. In a second paper, we will use such a result to implement the Pirogov-Sinai scheme proving coexistence of S+1 extremal DLR measures.
description: 72 pages, 1 figure
Mixed Cross Entropy Loss for Neural Machine Translation
Creators: name: Li, Haoran
name: Lu, Wei
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: In neural machine translation, cross entropy (CE) is the standard loss function in two training methods of auto-regressive models, i.e., teacher forcing and scheduled sampling. In this paper, we propose mixed cross entropy loss (mixed CE) as a substitute for CE in both training approaches. In teacher forcing, the model trained with CE regards the translation problem as a one-to-one mapping process, while in mixed CE this process can be relaxed to one-to-many. In scheduled sampling, we show that mixed CE has the potential to encourage the training and testing behaviours to be similar to each other, more effectively mitigating the exposure bias problem. We demonstrate the superiority of mixed CE over CE on several machine translation datasets, WMT'16 Ro-En, WMT'16 Ru-En, and WMT'14 En-De in both teacher forcing and scheduled sampling setups. Furthermore, in WMT'14 En-De, we also find mixed CE consistently outperforms CE on a multi-reference set as well as a challenging paraphrased reference set. We also found the model trained with mixed CE is able to provide a better probability distribution defined over the translation output space. Our code is available at https://github.com/haorannlp/mix.
Gauge mediation in supergravity and gravitino dark matter
Creators: name: Ibe, Masahiro
name: Kitano, Ryuichiro
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Gravitinos and hidden sector fields often cause a cosmological disaster in supersymmetric models. We find that a model with gravitational gauge mediation solves such a problem quite naturally. The mu-problem is also absent in the model. Moreover, the abundance of gravitinos explains correct amount of dark matter of the universe. The dark matter abundance can be calculated without detailed information on the thermal history of the universe such as the reheating temperature after inflation.
description: 22 pages, 2 figures, a reference added, version to appear in PRD
Laurent Polynomials and Superintegrable Maps
Creators: name: Hone, Andrew N. W.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Number Theory (math.NT)
subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: This article is dedicated to the memory of Vadim Kuznetsov, and begins with some of the author's recollections of him. Thereafter, a brief review of Somos sequences is provided, with particular focus being made on the integrable structure of Somos-4 recurrences, and on the Laurent property. Subsequently a family of fourth-order recurrences that share the Laurent property are considered, which are equivalent to Poisson maps in four dimensions. Two of these maps turn out to be superintegrable, and their iteration furnishes infinitely many solutions of some associated quartic Diophantine equations.
description: This is a contribution to the Vadim Kuznetsov Memorial Issue on Integrable Systems and Related Topics, published in SIGMA (Symmetry, Integrability and Geometry: Methods and Applications) at http://www.emis.de/journals/SIGMA/
Upper North Wakashan and Southern Tsimshian ethnobotany: the knowledge and usage of plants and fungi among the Oweekeno, Hanaksiala (Kitlope and Kemano), Haisla (Kitamaat) and Kitasoo Peoples of the central and north coasts of British Columbia
Creators: name: Compton, Brian D.
Publisher: name: University of British Columbia
Year: 2008

description: This thesis deals with botanical knowledge, use and categorization among three Wakashan cultures (Oweekeno, Hanaksiala and Haisla) and a Southern Tsimshian group (Kitasoo) of the Central Coast and North Coast regions of British Columbia. The research has involved the first comprehensive attempt at the documentation of names and cultural roles for fungi and plants among these cultures. Approximately 90 taxa of fungi and plants are known to have had indigenous names and cultural roles in Kitasoo culture, approximately 100 taxa in Oweekeno culture and approximately 180 taxa in the Haisla and Hanaksiala cultures. Detailed accounts of the names and cultural roles of these species are presented. The basic features of Upper North Wakashan and Southern Tsimshian folk botanical nomenclature and categorization, as revealed from research among these representative groups, correspond in general with findings resulting from previous studies in the Pacific Northwest and elsewhere. A general 'plant' term is present in Upper North Wakashan, but lacking from Southern Tsimshian. Life-form categories are generally similar among all the study groups as are several intermediate botanical categories. A somewhat unusual "life-form complex" consisting of "berry bushes" and "berry bushes or any bush" is present in Southern Tsimshian, while a unique "fern" life-form is proposed for Oowekyala, Hanaksiala and Haisla. In both Upper North Wakashan and Southern Tsimshian some generic level taxa are seen to represent prototypes of more inclusive life-form categories and intermediate categories. Instances of folk specific categories corresponding to various colour forms of salmonberries (Rubus spectabilis) occur among all the study groups. In general, a number of nomenclatural and categorization features are shared by all the study groups despite fundamental and extensive differences between the Wakashan and Tsimshian languages. These similarities have probably arisen from extensive and lengthy cultural contact and interchange between the cultural groups. A map of the study area is provided as are several figures, tables and appendices that contain information pertaining to botanical knowledge, use and categorization among the study groups.
Observation of Superconductivity Induced Ferromagnetism in an Fe-Chalcogenide Superconductor
Creators: name: McLaughlin, Nathan J.
name: Wang, Hailong
name: Huang, Mengqi
name: Lee-Wong, Eric
name: Hu, Lunhui
name: Lu, Hanyi
name: Yan, Gerald Q.
name: Gu, G. D.
name: Wu, Congjun
name: You, Yi-Zhuang
name: Du, Chunhui Rita
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The interplay among topology, superconductivity, and magnetism promises to bring a plethora of exotic and unintuitive behaviors in emergent quantum materials. The family of Fe-chalcogenide superconductors FeTexSe1-x are directly relevant in this context due to their intrinsic topological band structure, high-temperature superconductivity, and unconventional pairing symmetry. Despite enormous promise and expectation, the local magnetic properties of FeTexSe1-x remain largely unexplored, which prevents a comprehensive understanding of their underlying material properties. Exploiting nitrogen vacancy (NV) centers in diamond, here we report nanoscale quantum sensing and imaging of magnetic flux generated by exfoliated FeTexSe1-x flakes, providing clear evidence of superconductivity-induced ferromagnetism in FeTexSe1-x. The coexistence of superconductivity and ferromagnetism in an established topological superconductor opens up new opportunities for exploring exotic spin and charge transport phenomena in quantum materials. The demonstrated coupling between NV centers and FeTexSe1-x may also find applications in developing hybrid architectures for next-generation, solid-state-based quantum information technologies.
description: 12 pages, 4 figures
Optical Feshbach resonances of Alkaline-Earth atoms in a 1D or 2D optical lattice
Creators: name: Naidon, Pascal
name: Julienne, Paul S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Motivated by a recent experiment by Zelevinsky et al. [Phys. Rev. Lett. 96, 203201], we present the theory for photoassociation and optical Feshbach resonances of atoms confined in a tight one-dimensional (1D) or two-dimensional (2D) optical lattice. In the case of an alkaline-earth intercombination resonance, the narrow natural width of the line makes it possible to observe clear manifestations of the dimensionality, as well as some sensitivity to the scattering length of the atoms. Among possible applications, a 2D lattice may be used to increase the spectroscopic resolution by about one order of magnitude. Furthermore, a 1D lattice induces a shift which provides a new way of determining the strength of a resonance by spectroscopic measurements.
description: 12 pages, 4 figures. Typos were corrected and a connection was made to the fermionization of bosons
Transition in the spectral gap of the massless overlap Dirac operator coupled to abelian fields in three dimensions
Creators: name: Narayanan, Rajamani
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The low lying spectrum of the massless overlap Dirac operator coupled to abelian fields in three dimensions with three different measures are shown to exhibit two phases: a strong coupling gapped phase and a weak coupling gapless phase. The vanishing of the gap from the strong coupling side with a Maxwell and a conformal measure is governed by a Gaussian exponent. Contrary to this result, the vanishing of the gap from the strong coupling side with a compact Thirring measure is not consistent with a Gaussian exponent. The low lying spectrum with a non-compact Thirring measure does not exhibit a simple non-monotonic behavior as a function of the lattice size on the weak coupling side. Our combined analysis suggests exploring the possibility of a strongly coupled continuum theory starting from a compact lattice Thirring model where a compact U(1) gauge field with a single link action is coupled to even number of flavors of massless overlap Dirac fermions.
description: 18 pages, 5 figures
D7.4 Test Report for 2nd life-Testing
Creators: name: MARBEL partners
Publisher: name: Zenodo
Year: 2025

description: This deliverable presents the results of second-life testing conducted on the Marbel battery module, specifically evaluating its feasibility for reuse in small mobility applications. Building on prior guidelines for second-life battery use, this study focuses on testing and analyzing the Marbel module's performance in electric scooters, e-bikes, and motorcycles. 

The assessment began with defining the energy demands and usage profiles of these vehicles, followed by laboratory tests to evaluate the module’s suitability. Since the tested module had not undergone prior aging, a battery lifetime model was developed to estimate its State of Health (SOH) over its first and second life.

Test results indicate that the Marbel module performs well for e-bikes and scooters, where the required power does not exceed 500W. However, it is unsuitable for motorcycles, as its 2.5 kW power limit is insufficient for speeds above 50 km/h, where power demands exceed 12.5 kW. Despite this limitation, the Marbel module's high energy density suggests it could provide extended autonomy in low-speed applications. The battery lifetime model predicts up to 1,900 cycles at 80% SOH and 3,200 cycles at 60% SOH, demonstrating its long-term viability in second-life applications.

Overall, the Marbel battery module shows strong potential for reuse in urban e-bikes and scooters, supporting sustainability goals while maintaining reliable performance in second-life applications.
description: MARBEL project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No. 963540
The effect of Pressure in Higher Dimensional Quasi-Spherical Gravitational Collapse
Creators: name: Chakraborty, Sanjukta
name: Chakraborty, Subenoy
name: Debnath, Ujjal
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study gravitational collapse in higher dimensional quasi-spherical Szekeres space-time for matter with anisotropic pressure. Both local and global visibility of central curvature singularity has been studied and it is found that with proper choice of initial data it is possible to show the validity of CCC for six and higher dimensions. Also the role of pressure in the collapsing process has been discussed.
description: 11 pages, 6 figures, RevTeX style
Η έρευνα για τον ιστορικό Ιησού σύμφωνα με το κατά Ιωάννην ευαγγέλιο και τις προσεγγίσεις με τη συνδρομή της αρχαιολογίας
Creators: name: Μπαλουκτσής, Γεώργιος Νικολάου
Publisher: name: Aristotle University of Thessaloniki
Year: 2016
Subjects: Ιστορικός Ιησούς
Κατά Ιωάννην Ευαγγέλιο
Αρχαιολογία
Historical Jesus
John’s gospel
archaeology

description: Στην παρούσα εργασία, στην οποία βασιζόμαστε σχεδόν κατ’ αποκλειστικότητα στα αρχαιολογικά ευρήματα, είδαμε πως πλέον μπορούμε να συμπεριλάβουμε στην έρευνα για τον ιστορικό Ιησού και το κατά Ιωάννην ευαγγέλιο. Καθώς, διαθέτει μοναδικές πληροφορίες, οι οποίες δεν αποτελούν προϊόν μυθοπλασίας, ούτε κατασκευάστηκαν από τον συγγραφέα του τετάρτου ευαγγελίου για να χρησιμοποιήσουν τους θεολογικούς σκοπούς του. Τυγχάνει όμως κατά ένα παράξενο τρόπο οι ιστορικές πληροφορίες που μας αναφέρει να μπορούν να λάβουν κάποιο βαθύτερο συμβολικό νόημα. Οπότε, συνάγουμε το συμπέρασμα πως μπορούμε να εμπιστευθούμε τον Ιωάννη ως έγκυρη πηγή πληροφόρησης για τον ιστορικό Ιησού.
description: In the present thesis, on which we were based almost at exclusivity in the archaeological discoveries, we saw that henceforth we can include in the research for the historical Jesus and the gospel of John. While, it allocates unique information, that does not constitute product of myth-making, neither was manufactured by the writer of fourth gospel in order to they use his theological aims. It happens however at a strange way the historical information that it reports to us to be possible to receive some deeper symbolic meaning. Therefore, we gather the conclusion that we can entrust the fourth gospel as valid source of information for the historical Jesus.
Stability of multielectron bubbles in high Landau levels
Creators: name: Ro, Dohyung
name: Myers, S. A.
name: Deng, N.
name: Watson, J. D.
name: Manfra, M. J.
name: Pfeiffer, L. N
name: West, K. W.
name: Csáthy, G. A.
Publisher: name: arXiv
Year: 2021
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 multielectron bubble phases in the $N=2$ and $N=3$ Landau levels in a high mobility GaAs/AlGaAs sample. We found that the longitudinal magnetoresistance versus temperature curves in the multielectron bubble region exhibit sharp peaks, irrespective of the Landau level index. We associate these peaks with an enhanced scattering caused by thermally fluctuating domains of a bubble phase and a uniform uncorrelated electron liquid at the onset of the bubble phases. Within the $N=3$ Landau level, onset temperatures of three-electron and two-electron bubbles exhibit linear trends with respect to the filling factor; the onset temperatures of three-electron bubbles are systematically higher than those of two-electron bubbles. Furthermore, onset temperatures of the two-electron bubble phases across $N=2$ and $N=3$ Landau levels are similar, but exhibit an offset. This offset and the dominant nature of the three-electron bubbles in the $N=3$ Landau level reveals the role of the short-range part of the electron-electron interaction in the formation of the bubbles.
AKK Update: Improvements from New Theoretical Input and Experimental Data
Creators: name: Albino, S.
name: Kniehl, B. A.
name: Kramer, G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We perform a number of improvements to the previous AKK extraction of fragmentation functions for $π^\pm$, $K^\pm$, $p/\bar{p}$, $K_S^0$ and $Λ/\barΛ$ particles at next-to-leading order. Inclusive hadron production measurements from $pp(\bar{p})$ reactions at BRAHMS, CDF, PHENIX and STAR are added to the data sample. We use the charge-sign asymmetry of the produced hadrons in $pp$ reactions to constrain the valence quark fragmentations. Data from $e^+ e^-$ reactions in regions of smaller $x$ and lower $\sqrt{s}$ are added. Hadron mass effects are treated for all observables and, for each particle, the hadron mass used for the description of the $e^+ e^-$ reaction is fitted. The baryons' fitted masses are found to be only around 1% above their true masses, while the values of the mesons' fitted masses have the correct order of magnitude. Large $x$ resummation is applied in the coefficient functions of the $e^+ e^-$ reactions, and also in the evolution of the fragmentation functions, which in most cases results in a significant reduction of the minimized $χ^2$. To further exploit the data, all published normalization errors are incorporated via a correlation matrix.
Compiling Elementary Mathematical Functions into Finite Chemical Reaction Networks via a Polynomialization Algorithm for ODEs
Creators: name: Hemery, Mathieu
name: Fages, François
name: Soliman, Sylvain
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: FOS: Biological sciences

description: The Turing completeness result for continuous chemical reaction networks (CRN) shows that any computable function over the real numbers can be computed by a CRN over a finite set of formal molecular species using at most bimolecular reactions with mass action law kinetics. The proof uses a previous result of Turing completeness for functions defined by polynomial ordinary differential equations (PODE), the dualrail encoding of real variables by the difference of concentration between two molecular species, and a back-end quadratization transformation to restrict to elementary reactions with at most two reactants. In this paper, we present a polynomialization algorithm of quadratic time complexity to transform a system of elementary differential equations in PODE. This algorithm is used as a front-end transformation to compile any elementary mathematical function, either of time or of some input species, into a finite CRN. We illustrate the performance of our compiler on a benchmark of elementary functions relevant to CRN design problems in synthetic biology specified by mathematical functions. In particular, the abstract CRN obtained by compilation of the Hill function of order 5 is compared to the natural CRN structure of MAPK signalling networks.
Διαφοροποίηση μονοκυττάρων σε μακροφάγα και φαγοκύττωση νανοσωματιδίων οξειδίου του σιδήρου και σίλικα καλυμμένων με θειοφλαβίνη
Creators: name: Μαλέτσικα, Μαρία-Μαργαρίτα Σεραφείμ
Publisher: name: Aristotle University of Thessaloniki
Year: 2016
Subjects: Φίλτρα λευκαφαίρεσης
Μακροφάγα
Φαγοκυττάρωση
Leukapheresis Filters
Macrophages
Phagocytosis

description: Στην παρούσα Διπλωματική εργασία πραγματοποιήθηκε η απομόνωση μονοπύρηνων κυττάρων αίματος από φίλτρα λευκαφαίρεσης, η διαφοροποίησής τους σε μακροφάγα κύτταρα και ο έλεγχος της ικανότητάς τους να φαγοκυτταρώνουν νανοσωματίδια (NPs) οξειδίου του σιδήρου καλυμμένων με σίλικα και θειοφλαβίνη. Τα μονοπύρηνα κύτταρα απομονώθηκαν από φίλτρα λευκαφαίρεσης της μονάδας μεσογειακής αναιμίας του νοσοκομείου Α.Χ.Ε.Π.Α. Η διαφοροποίησή τους σε μακροφάγα έγινε μετά από επώαση φρέσκων ή ψυγμένων κυττάρων για 10 ημέρες με αλλαγή θρεπτικού μέσου καλλιέργειας. Τα μακροφάγα καλλιεργήθηκαν παρουσία των νανοσωματιδίων σε διάφορες συγκεντρώσεις ώστε να βρεθεί ο βέλτιστος χρόνος και η βέλτιστη συγκέντρωση για τη φαγοκυττάρωση των νανοσωματιδίων από τα μακροφάγα. Συμπερασματικά, από τις μετρήσεις κυτταρομέτρου ροής και οπτικού μικροσκοπίου φάνηκε πώς η μέγιστη συγκέντρωση των νανοσωματιδίων είναι τα 5 mg/ml με μέγιστο χρόνο επώασης για φαγοκυττάρωση τις 72 h. Επιπλέον μετρήθηκε η κυτταροτοξικότητα των νανοσωματιδίων στον πληθυσμό των μακροφάγων και η ισορροπία οξειδωτικών-αντιοξειδωτικών, με ΜΤΤ και PAB assay, αντίστοιχα, προκειμένου να αξιολογηθεί η επίδραση των NPs στην καλλιέργεια.
description: At this bachelor we performed the isolation of leukocytes from leukapheresis filters and their differentiation into macrophages. To control the ability of macrophages to phagocytose we incubated the cells with nanoparticles (NPs) of iron oxide coated with silica and thioflavin. The differentiation into macrophages was done after incubation of fresh or frozen blood mononuclear cells (BMCs) for 10 days with change of culture medium. Macrophages were cultured in the presence of nanoparticles in various concentrations in order to find the optimum time and the optimal concentration for phagocytosis of nanoparticles by macrophages. In conclusion, the flow cytometer counts and the optical microscope images shown that the maximum concentration of the nanoparticles is 5 mg/ml with a maximum incubation time for phagocytosis of 72 h. Moreover the cytotoxicity of nanoparticles was measured in a population of macrophages and balance oxidant-antioxidant, MTT and PAB assay, respectively, in order to evaluate the effect of NPs in culture.
Small-angle interband scattering as the origin of the $T^{3/2}$ resistivity in MnSi
Creators: name: Smith, M. F.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A possible explanation is given for the anomalous $T^{3/2}$ temperature dependence of the electrical resistivity of MnSi, which is observed in the high-pressure paramagnetic state. The unusual Fermi surface of MnSi includes large open sheets that intersect along the faces of the cubic Brillouin zone. Close to these intersections, long-wavelength interband magnetic spin fluctuations can scatter electrons from one sheet to the other. The current relaxation rate due to such interband scattering events is not reduced by vertex corrections as is that for scattering from intraband ferromagnetic fluctuations. Consequently, current relaxation proceeds in a manner similar to that occurring in nearly antiferromagnetic metals, in which low-temperature $T^{3/2}$ behavior is well known. It is argued that this type of non-Fermi-liquid behavior can, for a metal with ferromagnetic fluctuations near Fermi sheet intersections, persist over a much wider temperature range than it does in nearly antiferromagnetic metals.
description: 4 pages, 1 figure
Agriculture and Trade of El Salvador
Creators: name: Coyner, Mary S.
name: Coyner, Mary S.
Publisher: name: Unknown
Year: 1971
Subjects: subject: Agricultural and Food Policy
subject: Crop Production/Industries
subject: Food Consumption/Nutrition/Food Safety
subject: International Relations/Trade
subject: Land Economics/Use
subject: Livestock Production/Industries
subject: Marketing
subject: FOS: Economics and business
subject: El Salvador
subject: population density
subject: economic indicators
subject: agricultural policies
subject: land reform
subject: food requirements

description: Agricultural production in El Salvador has been increasing, but at a rate slower than population. The principal export crops--coffee, cotton, and sugar--have benefited most from improved technology and from attention to marketing by cooperative organizations. Increased corn production has resulted from many years of research and extension work with local farmers. Wheat is the country's chief agricultural import. El Salvador is an important source of coffee beans and sugar for the United States, which in turn is El Salvador's prime source for wheat. Western Europe, Japan, and the Central American Common Market are important trading partners of El Salvador.
Twist-angle engineering of excitonic quantum interference and optical nonlinearities in stacked 2D semiconductors
Creators: name: Lin, Kai-Qiang
name: Junior, Paulo E. Faria
name: Bauer, Jonas M.
name: Peng, Bo
name: Monserrat, Bartomeu
name: Gmitra, Martin
name: Fabian, Jaroslav
name: Bange, Sebastian
name: Lupton, John M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Twist-engineering of the electronic structure of van-der-Waals layered materials relies predominantly on band hybridization between layers. Band-edge states in transition-metal-dichalcogenide semiconductors are localized around the metal atoms at the center of the three-atom layer and are therefore not particularly susceptible to twisting. Here, we report that high-lying excitons in bilayer WSe2 can be tuned over 235 meV by twisting, with a twist-angle susceptibility of 8.1 meV/°, an order of magnitude larger than that of the band-edge A-exciton. This tunability arises because the electronic states associated with upper conduction bands delocalize into the chalcogenide atoms. The effect gives control over excitonic quantum interference, revealed in selective activation and deactivation of electromagnetically induced transparency (EIT) in second-harmonic generation. Such a degree of freedom does not exist in conventional dilute atomic-gas systems, where EIT was originally established, and allows us to shape the frequency dependence, i.e. the dispersion, of the optical nonlinearity.
Quantum sensing of photonic spin density
Creators: name: Kalhor, Farid
name: Yang, Li-Ping
name: Bauer, Leif
name: Jacob, Zubin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Photonic spin density (PSD) in the near-field gives rise to exotic phenomena such as photonic skyrmions, optical spin-momentum locking and unidirectional topological edge waves. Experimental investigation of these phenomena requires a nanoscale probe that directly interacts with PSD. Here, we propose and demonstrate that the nitrogen-vacancy (NV) center in diamond can be used as a quantum sensor for detecting the spinning nature of photons. This room temperature magnetometer can measure the local polarization of light in ultra-subwavelength volumes through photon-spin-induced virtual transitions. The direct detection of light's spin density at the nanoscale using NV centers in diamond opens a new frontier for studying exotic phases of photons as well as future on-chip applications in spin quantum electrodynamics (sQED).
description: 21 pages, 9 figures
The Importance of Intercultural Communication Competence in Improving Labor Potential in Phuket Province
Creators: name: Pramesini Khamtab
Publisher: name: mahasarakham university
Year: 2020
Subjects: Intercultural Communication Competence, IncreaseLabor Potential, Phuket Province, Human Resource Development, Service and Tourism Industry

description: Journal of Humanities and Social Sciences, 39, 6, .36-47
PAC Learning Mixtures of Axis-Aligned Gaussians with No Separation Assumption
Creators: name: Feldman, Jon
name: O'Donnell, Ryan
name: Servedio, Rocco A.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: We propose and analyze a new vantage point for the learning of mixtures of Gaussians: namely, the PAC-style model of learning probability distributions introduced by Kearns et al. Here the task is to construct a hypothesis mixture of Gaussians that is statistically indistinguishable from the actual mixture generating the data; specifically, the KL-divergence should be at most epsilon. In this scenario, we give a poly(n/epsilon)-time algorithm that learns the class of mixtures of any constant number of axis-aligned Gaussians in n-dimensional Euclidean space. Our algorithm makes no assumptions about the separation between the means of the Gaussians, nor does it have any dependence on the minimum mixing weight. This is in contrast to learning results known in the ``clustering'' model, where such assumptions are unavoidable. Our algorithm relies on the method of moments, and a subalgorithm developed in previous work by the authors (FOCS 2005) for a discrete mixture-learning problem.
description: 19 pages; no figures; preliminary abridged version appeared in Proceedings of 19th Annual Conference on Learning Theory (COLT) 2006
Τρισδιάστατη αποτύπωση του Μπέη Χαμάμ με laser scanner
Creators: name: Ζαχαρούλης, Παναγιώτης Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2016
Subjects: Μπέη Χαμάμ
Τρισδιάστατη αποτύπωση
Σαρωτής λέιζερ
Bey Hammam
3D Laser Scanner

description: Το Μπέη Χαμάμ βρίσκεται στο κέντρο της Θεσσαλονίκης, είναι το πρώτο οθωμανικό λουτρό που χτίστηκε στην πόλη το 1444, λίγο μετά την κατάκτησή της από το σουλτάνο Μουράτ Β΄. Πρόκειται για το μεγαλύτερο δίδυμο λουτρό στην Ελλάδα, διαστάσεων 28,00x44,00μ, με ξεχωριστά ανδρικά και γυναικεία διαμερίσματα, που αναπτύσσονται ανεξάρτητα, κατά μήκος δύο παράλληλων αξόνων. Αντικείμενο της παρούσας μεταπτυχιακής διατριβής είναι η τρισδιάστατη αποτύπωση με σαρωτή laser του Μπέη Χαμάμ. Αρχικά γίνεται μια σύντομη αναφορά στους τύπους και τη λειτουργία των οθωμανικών λουτρών γενικότερα, προκειμένου να γίνει κατανοητή η ανάλυση των αρχιτεκτονικών στοιχείων του λουτρού. Έπειτα παρουσιάζονται οι μέθοδοι γεωμετρικής τεκμηρίωσης των μνημείων και συγκεκριμένα η μέθοδος της τρισδιάστατης αποτύπωσης που εφαρμόστηκε και αναλύονται η αρχή λειτουργιάς του οργάνου , η μεθοδολογία και η διαδικασία επεξεργασίας των μετρήσεων. Μέσα από το τελικό αποτέλεσμα, που είναι τα σχέδια κατόψεων, όψεων , άνοψης και τομών του μνημείου, εξάγονται κάποια συμπεράσματα για την επιλογή της κατάλληλης μεθόδου. Τέλος, παρουσιάζεται ένα βίντεο περιήγησης για το εν λόγω μνημείο, καθώς η αδυναμία πρόσβασης σήμερα καθιστά δύσκολη τη γνωριμία του με το κοινό.
description: Bey Hammam is at the center of Thessaloniki, is the first Ottoman bath built in the city in 1444, shortly after the conquest by Sultan Murad II. It is the largest bath duo in Greece, measuring 28,00x44,00m, with separate men's and women's departments, which develop independently along two parallel axes. The subject of this master thesis is the three-dimensional mapping with laser scanner of Bey Hamam. In the beginning was made a brief reference to the types and operation of Ottoman baths in general, in order to understand the analysis of the architectural elements of the bathroom. Then, a presentation takes place of the geometric documentation of monuments with emphasis on three-dimensional method that was applied. Furthermore, the operating principles of the instrument and the process of the data are being analyzed. Through the final results, which are the floor plans, sides, bottom and sections of the monument, the appropriate method is chosen. Finally, a video tour was made through the used program, in order to make it easier for the public to see the inside of the monument.
Slow-Mode Magnetoacoustic Waves in Coronal Loops
Creators: name: Wang, Tongjiang
name: Ofman, Leon
name: Yuan, Ding
name: Reale, Fabio
name: Kolotkov, Dmitrii Y.
name: Srivastava, Abhishek K.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Rapidly decaying long-period oscillations often occur in hot coronal loops of active regions associated with small (or micro-) flares. This kind of wave activity was first discovered with the SOHO/SUMER spectrometer from Doppler velocity measurements of hot emission lines, thus also often called "SUMER" oscillations. They were mainly interpreted as global (or fundamental mode) standing slow magnetoacoustic waves. In addition, increasing evidence has suggested that the decaying harmonic type of pulsations detected in light curves of solar and stellar flares are likely caused by standing slow-mode waves. The study of slow magnetoacoustic waves in coronal loops has become a topic of particular interest in connection with coronal seismology. We review recent results from SDO/AIA and Hinode/XRT observations that have detected both standing and reflected intensity oscillations in hot flaring loops showing the physical properties (e.g., oscillation periods, decay times, and triggers) in accord with the SUMER oscillations. We also review recent advances in theory and numerical modeling of slow-mode waves focusing on the wave excitation and damping mechanisms. MHD simulations in 1D, 2D and 3D have been dedicated to understanding the physical conditions for the generation of a reflected propagating or a standing wave by impulsive heating. Various damping mechanisms and their analysis methods are summarized. Calculations based on linear theory suggest that the non-ideal MHD effects such as thermal conduction, compressive viscosity, and optically thin radiation may dominate in damping of slow-mode waves in coronal loops of different physical conditions. Finally, an overview is given of several important seismological applications such as determination of transport coefficients and heating function.
description: 62 pages, 24 figures, accepted for publication in Space Science Reviews in 2021
Απόκοπος. Ένας σχολιασμός
Creators: name: Μάττα, Σωτηρία Δημητρίου
Publisher: name: Aristotle University of Thessaloniki
Year: 2016
Subjects: Απόκοπος
Μπεργαδής
Ερμηνευτικά Σχόλια
Apokopos
Bergadis
Commentary

description: Σκοπός της εργασίας είναι η συγκέντρωση και η συστηματική παρουσίαση για πρώτη φορά των ερμηνευτικών σχολίων για τον Απόκοπο του Μπεργαδή που μπορούν να αντληθούν από την υπάρχουσα βιβλιογραφία (εκδόσεις, μελέτες, βιβλιοκρισίες). Έτσι, δίνεται η δυνατότητα σε ένα ευρύτερο κοινό να έρθει σε επαφή με το σύνολο των ερμηνευτικών προσεγγίσεων για το έργο αυτό, που υπήρξε το πρώτο δημώδες ελληνικό λογοτεχνικό έργο που τυπώθηκε (Βενετία 1509). Κύριο μέρος της εργασίας αποτελεί η οργάνωση των ερμηνευτικών σχολίων κατά στίχο ή ομάδα στίχων. Παρατίθεται τμηματικά το κείμενο της έντυπης έκδοσης Α, κατά την πιο πρόσφατη έκδοση του Vejleskov (2005), η ροή του οποίου διακόπτεται από τα σχόλια, για τη διευκόλυνση του αναγνώστη. Σε κάθε ενότητα, προηγούνται γενικά εισαγωγικά στοιχεία και πληροφορίες για τις πηγές-απηχήσεις της και ακολουθεί ο κατά στίχος σχολιασμός. Παράλληλα, στο τέλος παρατίθενται σε Επίμετρο οι τελευταίοι στίχοι του χειρογράφου της Βιέννης V. Δεν σημειώνονται οι λεξιλογικές διαφοροποιήσεις μεταξύ της έκδοσης Α και του χειρογράφου V, παρά μόνο αν για αυτές προκύπτουν ερμηνείες, και επιπλέον παραλείπονται σχόλια λεξιλογικά και μετρικά, επειδή αυτά μπορούν εύκολα να αντληθούν από τις κριτικές εκδόσεις. Η μελέτη του συνόλου των ερμηνευτικών σχολίων και προσεγγίσεων από την εκτεταμένη βιβλιογραφία του Απόκοπου έδωσε τη δυνατότητα μιας γενικής αποτίμησής τους, καθώς και των καταγραφής των τάσεων στην διεθνή έρευνα για το έργο.
description: The aim of the present thesis is to collect and present methodically for the first time the commentary on Bergadis’ Apokopos, which may be retrieved from the current bibliography (editions, studies, book reviews). Thus, the opportunity is offered to the public to get in contact with all interpretative approaches made for this work, which is the first printed book in Modern Greek (Venice, 1509). The main part of the present thesis is the presentation of commentary under each verse or group of verses. The text of the printed edition A, according to the most recent edition of Vejleskov (2005), is partially given and interrupted by comments for reader’s ease. In each section, before the commentary for the verse(s), there are some introductory remarks and information for its plausible sources or influences on other works. The last verses of manuscript of Vienna (V) are presented at the end of all sections. Word differences between printed edition A and manuscript V are not taken here into account, unless one can arrive at different interpretations; commentary on words or metrics are omitted since they may be retrieved from critical editions. The study of all interpretative comments and approaches made in the vast bibliography on Apokopos eases here their general assessment, as well as the recording of the international research trends on this work.
title: Indonesia Journal on Computing (Indo-JC), Vol. 9 No. 2 (2024): August, 2024
title: August, 2024
titleType: AlternativeTitle
Creators: name: Indonesia Journal On Computing (Indo-JC)
Publisher: name: Indonesia Journal on Computing (Indo-JC)
Year: 2024

description: Estimasi Biaya Proyek Pengembangan Aplikasi E-Government Di Indonesia...55-60
Observations of the intense and ultra-long burst GRB041219a with the Germanium Spectrometer on INTEGRAL
Creators: name: McBreen, S.
name: Hanlon, L.
name: McGlynn, S.
name: McBreen, B.
name: Foley, S.
name: Preece, R.
name: von Kienlin, A.
name: Williams, O. R.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: GRB041219a is the brightest burst localised by INTEGRAL. The intense burst occurred about ~250s after the precursor and the long delay enabled optical and near infrared telescopes to observe the prompt emission. We present comprehensive results of the temporal and spectral analyses, including line and afterglow searches using the spectrometer, SPI, aboard INTEGRAL, BAT on Swift and ASM on RXTE. We avail of multi-wavelength data to generate broadband spectra of GRB041219a and afterglow. Spectra for the burst and sub-intervals were fit by the Band model and also by the quasithermal model. The high resolution Germanium spectrometer data were searched for emission and absorption features and for gamma-ray afterglow. The overall burst and sub-intervals are well fit by the Band model. The photon index below the break energy shows a marked change after the quiescent time interval. In addition the spectra are well described by a black body component with a power law. The burst was detected by BAT and ASM during the long quiescent interval in SPI indicating the central engine might not be dormant but that the emission occurs in different bands. No significant emission or absorption features were found and limits of 900 eV and 120 eV are set on the most significant features. No gamma-ray afterglow was detected from the end of the prompt phase to ~12 hours post-burst. Broadband spectra of the prompt emission were generated in 7 time intervals using gamma-ray, x-ray, optical and near-infrared data and these were compared to the high-redshift burst GRB050904. The optical and gamma-ray emission are correlated in GRB041219a. The spectral lag was determined using data from the BAT and it changes throughout the burst. A number of pseudo-redshifts were evaluated and large dispersion in values was found.
description: Accepted for publication in Astronomy and Astrophysics, 10 pages, 6 figures. Revised figure with correction for extinction
The Development of a Mobile Application Using Scrum Pattern for Monitoring Project Information System
Creators: name: Bulan Ayu Sari Muntai
name: Darwiyanto, Eko
name: Nurtantyana, Rio
Publisher: name: Indonesia Journal on Computing (Indo-JC)
Year: 2024

description: Project monitoring is an important aspect of project management that can affect project success. In interviews with PT Gerbang Sinergi Prima (GSP) stakeholders, project monitoring is still uses manual ways to make the process more efficient and accurate. As a result, it causes delays, cost overruns, or even project failure. Hence, this research aims to develop a mobile application for project monitoring at GSP. The development of the GSP project monitoring mobile application uses a Scrum pattern based on Agile methodology and testing with black-box and user accepted testing (UAT). The Scrum pattern could help the development team produce effective and efficient mobile application development according to changing project needs. The results showed that project monitoring using mobile applications has a positive effect on the effectiveness of project monitoring. Black box testing results showed 100% success on nine modules, ensuring all features functioned adequately. UAT showed 74% positive statements that met user needs and 46% negative statements indicating the application was quite convenient. Furthermore, the mobile project monitoring application is consistently and continuously used for all ongoing projects in the company. We suggested that it is necessary to conduct training for new users of the mobile project monitoring application.
description: Indonesia Journal on Computing (Indo-JC), Vol. 9 No. 2 (2024): August, 2024
A Computing and Detector Simulation Framework for the HIBEAM/NNBAR Experimental Program at the ESS
Creators: name: Barrow, J.
name: Brooijmans, G.
name: Damian, J. I. M.
name: DiJulio, D.
name: Dunne, K.
name: Frost, M.
name: Golubeva, E.
name: Kamyshkov, Y.
name: Kittelmann, T.
name: Klinkby, E.
name: Kókai, Z.
name: Makkinje, J.
name: Meirose, B.
name: Milstead, D.
name: Nepomuceno, A.
name: Oskarsson, A.
name: Ramic, K.
name: Rizzi, N.
name: Santoro, V.
name: Silverstein, S.
name: Takibayev, A.
name: Wagner, R.
name: Yiu, S-C.
name: Zanini, L.
name: Zimmer, O.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: The HIBEAM/NNBAR program is a proposed two-stage experiment at the European Spallation Source focusing on searches for baryon number violation via processes in which neutrons convert to antineutrons. This paper outlines the computing and detector simulation framework for the HIBEAM/NNBAR program. The simulation is based on predictions of neutron flux and neutronics together with signal and background generation. A range of diverse simulation packages are incorporated, including Monte Carlo transport codes, neutron ray-tracing simulation packages, and detector simulation software. The common simulation package in which these elements are interfaced together is discussed. Data management plans and triggers are also described.
description: Contribution to CHEP2021. Accepted for publication in the European Physical Journal (EPJ) Web of Conferences
$\R$-trees and laminations for free groups II: The dual lamination of an $\R$-tree
Creators: name: Coulbois, Thierry
name: Hilion, Arnaud
name: Lustig, Martin
Publisher: name: arXiv
Year: 2007
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20F65, 37B, 57M

description: This is the second part of a series of three articles which introduce laminations for free groups (see math.GR/0609416 for the first part). Several definition of the dual lamination of a very small action of a free group on an $\R$-tree are given and proved to be equivalent.
description: corrections of typos and minor update
Pseudogaps in Strongly Correlated Metals: Optical Conductivity within the Generalized Dynamical Mean-Field Theory Approach
Creators: name: Kuchinskii, E. Z.
name: Nekrasov, I. A.
name: Sadovskii, M. V.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Optical conductivity of the weakly doped two-dimensional repulsive Hubbard model on the square lattice with nearest and next nearest hoppings is calculated within the generalized dynamical-mean field (DMFT+Σ_p) approach which includes correlation length scale ξinto the standard DMFT equations via the momentum dependent self-energy Σ_p, with full account of appropriate vertex corrections. This approach takes into consideration non-local dynamical correlations induced e.g. by short-ranged collective SDW-like antiferromagnetic spin fluctuations, which (at high enough temperatures) can be viewed as a quenched Gaussian random field with finite correlation length ξ. The effective single impurity problem is solved by numerical renormalization group (NRG). We consider both the case of correlated metal with the bandwidth W<=U and that of doped Mott insulator with U>>W (U - value of local Hubbard interaction). Optical conductivity calculated within DMFT+Σ_p demonstrates typical pseudogap behavior within the quasiparticle band in qualitative agreement with experiments in copper oxide superconductors. For large values of U pseudogap anomalies are effectively suppressed.
description: 33 pages, 14 figures, 1 Appendix, as it is accepted in PRB