cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Project financing e beni culturali
Creators: name: Cavaliere, Stefania
Publisher: name: Euro-Balkan Law and Economics Review
Year: 2019
Subjects: Gestione economica beni culturali; partenariato pubblico privato; project financing; vantaggio economico per la Pubblica Amministrazione

description: Since 1980s the cultural heritage sector has assumed and increased its economic and social emphasis. Nevertheless cultural heritage intrinsic value prevents from the chance of equate them with an economic life instrument. This is the reason why the greatest successes in cultural management have been achived when the appropriate balance between protection , exploitation and fruition of governamental purposes was reached. We must also consider the development of profit, employment and newest cultural heritage forms of work. A concrete implemention of this statement is figured in several collaboration forms between public authorities but also private ones. Collaborations often happen with two types of “agreements”: the so called partenariato istituzionale and the so called partenariato contrattuale. In the context of the latter one is included the financing project and development. This contract is characterised by the synergistic connection between public and private and it allows to obtain greater resources with the benefit of making projects and services without the Public Administration spending. At least with regard to cultural heritage, the use of this contract is still under implementation; perhaps because of the administrations lack of familiarity with this type of legal istitute which is very complicated. The following paper analyzes the specific financing project discipline comparing with the rules contained in the Cultural and Environmental Heritage code, also highlighting its strenghts and weakness. Talking about the financing project it is also even important in terms of coherence in the legislation with the public cultural heritage function. If properly applied this contract reaches efficient management and administration with the possibility of offering a better service for all citizens.
description: Euro-Balkan Law and Economics Review, N. 1 (2019): Fascicolo 1
Contrastive Fine-tuning Improves Robustness for Neural Rankers
Creators: name: Ma, Xiaofei
name: Santos, Cicero Nogueira dos
name: Arnold, Andrew O.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Retrieval (cs.IR)
subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: The performance of state-of-the-art neural rankers can deteriorate substantially when exposed to noisy inputs or applied to a new domain. In this paper, we present a novel method for fine-tuning neural rankers that can significantly improve their robustness to out-of-domain data and query perturbations. Specifically, a contrastive loss that compares data points in the representation space is combined with the standard ranking loss during fine-tuning. We use relevance labels to denote similar/dissimilar pairs, which allows the model to learn the underlying matching semantics across different query-document pairs and leads to improved robustness. In experiments with four passage ranking datasets, the proposed contrastive fine-tuning method obtains improvements on robustness to query reformulations, noise perturbations, and zero-shot transfer for both BERT and BART based rankers. Additionally, our experiments show that contrastive fine-tuning outperforms data augmentation for robustifying neural rankers.
Extending Quantum Probability from Real Axis to Complex Plane
Creators: name: Yang, Ciann-Dong
name: Han, Shiang-Yi
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Probability is an important question in the ontological interpretation of quantum mechanics. It has been discussed in some trajectory interpretations such as Bohmian mechanics and stochastic mechanics. New questions arise when the probability domain extends to the complex space, including the generation of complex trajectory, the definition of the complex probability, and the relation of the complex probability to the quantum probability. The complex treatment proposed in this article applies the optimal quantum guidance law to derive the stochastic differential equation governing a particle random motion in the complex plane. The probability distribution of the particle position over the complex plane is formed by an ensemble of the complex quantum random trajectories, which are solved from the complex stochastic differential equation. Meanwhile, this probability distribution is verified by the solution of the complex Fokker Planck equation. It is shown that quantum probability and classical probability can be integrated under the framework of complex probability, such that they can both be derived from the same probability distribution by different statistical ways of collecting spatial points.
Inflationary scenario in the supersymmetric economical 3-3-1 model
Creators: name: Huong, Do T.
name: Long, Hoang N.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We construct the supersymmetric economical 3-3-1 model which contains inflationary scenario and avoids the monopole puzzle. Based on the spontaneous symmetry breaking pattern (with three steps), the $F$-term inflation is derived. The slow-roll parameters $\ep$ and $η$ are calculated. By imposing as experimental five-year WMAP data on the spectral index $n$, we have derived a constraint on the number of e-folding $N_Q$ to be in the range from 25 to 50. The scenario for large-scale structure formation implied by the model is a mixed scenario for inflation and cosmic string, and the contribution to the CMBR temperature anisotropy depends on the ratio $\frac{M_X}{M_P}$. From the COBE data, we have obtained the constraint on the $M_X$ to be $M_X\in[1.22 \times 10^{16} - 0.98 \times 10^{17}]$ GeV. The upper value $M_X\simeq 10^{17}$ GeV is a result of the analysis in which the inflationary contribution to the temperature fluctuations measured by the COBE is 90%. The coupling $α$ varies in the range: $ 10^{-7} - 10^{-1} $. This value is not so small, and it is a common characteristics of the supersymmetric unified models with the inflationary scenario. The spectral index $n$ is a little bit smaller than 0.98. The SUGRA corrections are slightly different from the previous consideration. When $ξ\ll 1$ and $ \al $ lies in the above range, the spectral index gets the value consistent with the experimental five-year WMAP data. Comparing with string theory, one gets $ξ< 10^{-8}$. Numerical analysis shows that $ \al \approx 10^{-6}$. To get inflation contribution to the CMBR temperature anisotropy $\approx 90%$, the mass scale $M_X \sim 3.5 \times 10^{14}$ GeV.
description: 15 pages, 5 figures
title: Rapport de voyage, André Lebon (1913) : Ligne de Syrie, 1941, voyage n°spécial
Creators: name: Corenwinder, Raymond
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2024
Subjects: subject: Compagnie des Messageries Maritimes
subject: Transports maritimes - Histoire
subject: Marine marchande
subject: Journaux de bord

description: Chapitrage : Rapport du commandant - Rapport de mer
description: Source: French Lines & Compagnies, 1997 002 3935-29
description: Coverage: 1941-08-17/1941-09-08
ทฤษฎีการเปลี่ยนแปลงทางสังคมในยุคสังคมแห่งความพอเพียงและยั่งยืนแบบไทย ๆ
Creators: name: โสภนา  สุดสมบูรณ์
Publisher: name: วิทยาลัยเทคโนโลยีภาคใต้
Year: 2551

description: 1, 1, วารสารเทคโนโลยีภาคใต้
The meaning of religion in German Constitutional Court
Creators: name: Piccinni, Maria Rosaria
Publisher: name: Euro-Balkan Law and Economics Review
Year: 2019
Subjects: Religions; religious freedom; German Constitution; Constitutional Court; Religious pluralism

description: It’s not easy to give a precise definition of the concept of religion or of what generally constitutes a religion, because of the intangible and wide-ranging nature of the topic. The principle of State neutrality has important consequences for the legal definition of religion: in a neutral State, public authority doesn’t have the power to define what can be classified as religion and religious behaviour. Generally a religion is defined as a set of beliefs and practices, usually involving acknowledgment of a divine or higher being or power, by which people order the conduct of their lives both practically and in a moral sense. German society is currently marked by religious pluralism and constitutional jurisprudence has the difficult task to identify inclusive and objective parameters in order to guarantee religious freedom.
description: Euro-Balkan Law and Economics Review, N. 1 (2019): Fascicolo 1
Conjugacy of P-configurations and nonlinear solutions to a certain conditional Cauchy equation
Creators: name: Shalit, Orr
Publisher: name: arXiv
Year: 2008
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 39B22; 37B99

description: We study the connection between conjugations of a special kind of dynamical systems, called P-configurations, and solutions to homogeneous Cauchy type functional equations. We find that any two regular P-configurations are conjugate by a homeomorphism, but cannot be conjugate by a diffeomorphism. This leads us to the following conclusion (resolving an open problem posed by Paneah): there exist continuous nonlinear solutions to the functional equation: f(t) = f((t+1)/2) + f((t-1)/2), t \in [-1,1] .
description: 8 pages
Influence of particle size distribution on fluidized bed hydrodynamics
Creators: name: Ip, Trevor Tsz-Leung
Publisher: name: University of British Columbia
Year: 2010

description: Past literature has shown that the production efficiency of a fluidized bed can be affected by changing the particle size distribution. The hydrodynamics of fine particle fluidization were studied with FCC and glass bead powders which have different surface-volume mean particle diameter (40-110 μM) and particle size distributions (narrow cut, wide cut and bimodal) under ambient conditions. Increasing the mean particle size increases the minimum fluidization velocity, minimum bubbling velocity and dense phase velocity (U[sub d]) while decreasing the voidages at minimum fluidization and minimum bubbling and the dense phase voidage (∈[sub d]) as well as the fractional bubble free bed expansion. Increasing the particle size spread increases U[sub d] and decreases ∈[sub d] for FCC, but no clear conclusion can be made for glass bead powders. Increasing the static bed height decreases U[sub d] and ∈[sub d] of FCC powders though it has no effect on minimum fluidization and bubbling properties. The magnitude of pressure fluctuations increases with increasing superficial gas velocity and as the size spread of the FCC powder becomes more narrow. However, the frequency of fluctuations is independent of each of these factors. Therefore, the quality and production efficiency of the fluidization process should improve with the use of a wide and continuous size distribution powder.
Neutrino spin-flavor oscillations in electromagnetic fields of various configurations
Creators: name: Dvornikov, Maxim
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study spin-flavor oscillations of Dirac neutrinos with mixing and having non-zero matrix of magnetic moments in magnetic fields of various configurations. We discuss constant transversal and twisting magnetic fields. To describe the dynamics of Dirac neutrinos we use relativistic quantum mechanics approach based on the exact solutions to the Dirac-Pauli equation in an external electromagnetic field. We derive transition probabilities for different neutrino magnetic moments matrices.
description: The contribution to the proceedings of the 14th International Baksan School "Particles and Cosmology", Baksan Valley, Kabardino-Balkaria, Russia, 16-21 April 2007; 6 pages LaTeX2e
Health system resilience to extreme weather events in Asia-Pacific: a scoping review
Creators: name: Rameshshanker, Vinussa
name: Wyngaarden, Sara
name: Lau, Lincoln L.
name: Dodd, Warren
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Cancer
subject: Science Policy

description: Increasingly severe extreme weather events (EWEs) threaten population health in Asia-Pacific. Resilient health systems can minimize health risks by improving EWE preparedness, response, and recovery. However, how health systems demonstrate resilience is less understood in the emerging resilience literature. The objective of this scoping review was to describe how peer-reviewed and grey literature has operationalized health system resilience to EWEs in Asia-Pacific. Included sources were available in English, published from 2000 to 2019, and focused on health system activity in Asia-Pacific for EWE risk management. The World Health Organization's climate-resilient health system framework and building block model guided analysis of 49 sources. Health system activity was categorized by system building blocks. Assets and/or gaps to resilience were identified based on whether building blocks facilitated or impeded EWE risk management. Sources mostly focused on the Philippines (29%), India (16%) and Thailand (14%), with lower income economies and Pacific Island countries underrepresented. Floods (47%), typhoons (27%), and cyclones (16%) were frequently discussed while no sources mentioned droughts. Financing was the least mentioned building block (27%) and often described as a gap to resilience (24%). Overall, this review highlights opportunities for future research to develop EWE resilient health systems in Asia-Pacific and beyond.
Disorder-induced vibrational anomalies from crystalline to amorphous solids
Creators: name: Zhang, Ling
name: Wang, Yinqiao
name: Chen, Yangrui
name: Shang, Jin
name: Sun, Aile
name: Sun, Xulai
name: Yu, Shuchang
name: Zheng, Jie
name: Wang, Yujie
name: Schirmacher, Walter
name: Zhang, Jie
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The origin of boson peak -- an excess of density of states over Debye's model in glassy solids -- is still under intense debate, among which some theories and experiments suggest that boson peak is related to van-Hove singularity. Here we show that boson peak and van-Hove singularity are well separated identities, by measuring the vibrational density of states of a two-dimensional granular system, where packings are tuned gradually from a crystalline, to polycrystals, and to an amorphous material. We observe a coexistence of well separated boson peak and van-Hove singularities in polycrystals, in which the van-Hove singularities gradually shift to higher frequency values while broadening their shapes and eventually disappear completely when the structural disorder $η$ becomes sufficiently high. By analyzing firstly the strongly disordered system ($η=1$) and the disordered granular crystals ($η=0$), and then systems of intermediate disorder with $η$ in between, we find that boson peak is associated with spatially uncorrelated random flucutations of shear modulus $δG/\langle G \rangle$ whereas the smearing of van-Hove singularities is associated with spatially correlated fluctuations of shear modulus $δG/\langle G \rangle$.
description: 5 pages, 5 figures
title: On The Depth Dependence Of Fish Target Strength
Creators: name: Foote, Kenneth G.
Publisher: name: ASC 1997 - FF
Year: 2024
Subjects: Fisheries and aquaculture
Technologies and data

description: No abstracts are to be cited without prior reference to the author.Data on the depth dependence of the target strength of live kokanee (Oncorhynchus nerka), a physostome, at 50 kHz (Mukai, T., and Iida, K., ICES J. mar. Sci., 53: 245-248 (1996)) have been reexamined. In the cited study, data collected over a range of depths on a total of 50 tethered, anesthetized specimens were averaged at each depth, mainly at 5, 10, 20, and 40 m, then fit with a model consistent with Boyle's law.
Accurate X-ray position and multiwavelength observations of the isolated neutron star RBS 1774
Creators: name: Rea, N.
name: Torres, M. A. P.
name: Jonker, P. G.
name: Mignani, R.
name: Zane, S.
name: Burgay, M.
name: Kaplan, D.
name: Turolla, R.
name: Israel, G. L.
name: Steeghs, D.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report on X-ray, optical, infrared and radio observations of the X-ray dim isolated neutron star (XDINS) 1RXS J214303.7+065419 (also known as RBS 1774). The X-ray observation was performed with the High Resolution Camera on board of the Chandra X-ray Observatory, allowing us to derive the most accurate position for this source (alpha = 21h43m3.38s, delta= +6deg54'17".53; 90% uncertainty of 0."6). Furthermore, we confirmed with a higher spatial accuracy the point-like nature of this X-ray source. Optical and infrared observations were taken in B, V, r', i', J, H and Ks filters using the Keck, VLT, Blanco and Magellan telescopes, while radio observations were obtained from the ATNF Parkes single dish at 2.9GHz and 708MHz. No plausible optical and/or infrared counterpart for RBS 1774 was detected within the refined sub-arsecond Chandra X-ray error circle. Present upper limits to the optical and infrared magnitudes are r'>25.7 and J>22.6 (5 sigma confidence level). Radio observations did not show evidence for radio pulsations down to a luminosity at 1.4 GHz of L < 0.02 mJy kpc^2, the deepest limit up to date for any XDINS, and lower than what expected for the majority of radio pulsars. We can hence conclude that, if RBS 1774 is active as radio pulsar, its non detection is more probably due to a geometrical bias rather than to a luminosity bias. Furthermore, no convincing evidence for RRAT-like radio bursts have been found. Our results on RBS 1774 are discussed and compared with the known properties of other thermally emitting neutron stars and of the radio pulsar population.
description: 8 pages, 9 figures, accepted for publication on MNRAS
Enhanced Horizons
Creators: name: Gutowski, J. B.
name: Sabra, W. A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Half-supersymmetric geometries of N=2 five-dimensional gauged supergravity have recently been fully classified using spinorial geometry techniques. We use this classification to determine all possible regular half-supersymmetric near-horizon geometries, assuming that all of the gauge-invariant spinor bilinears are regular at the horizon. Four geometries are found, two of which have been found previously in hep-th/0611351 and arXiv:0708.3695.
description: 26 pages, latex. Minor alterations to sections 1, 2, 3, 8 and the appendix; typos corrected and reference added
Corpus-Level Evaluation for Event QA: The IndiaPoliceEvents Corpus Covering the 2002 Gujarat Violence
Creators: name: Halterman, Andrew
name: Keith, Katherine A.
name: Sarwar, Sheikh Muhammad
name: O'Connor, Brendan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: Automated event extraction in social science applications often requires corpus-level evaluations: for example, aggregating text predictions across metadata and unbiased estimates of recall. We combine corpus-level evaluation requirements with a real-world, social science setting and introduce the IndiaPoliceEvents corpus--all 21,391 sentences from 1,257 English-language Times of India articles about events in the state of Gujarat during March 2002. Our trained annotators read and label every document for mentions of police activity events, allowing for unbiased recall evaluations. In contrast to other datasets with structured event representations, we gather annotations by posing natural questions, and evaluate off-the-shelf models for three different tasks: sentence classification, document ranking, and temporal aggregation of target events. We present baseline results from zero-shot BERT-based models fine-tuned on natural language inference and passage retrieval tasks. Our novel corpus-level evaluations and annotation approach can guide creation of similar social-science-oriented resources in the future.
description: To appear in Findings of ACL 2021
Diffusion and localization in carbon nanotubes and graphene nanoribbons
Creators: name: Nemec, Norbert
name: Richter, Klaus
name: Cuniberti, Gianaurelio
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study transport length scales in carbon nanotubes and graphene ribbons under the influence of Anderson disorder. We present generalized analytical expressions for the density of states, the elastic mean free path and the localization length in arbitrarily structured quantum wires. These allow us to analyze the electrical response over the full energy range, including the regions around van Hove singularies, traditionally difficult to access by alternative approaches. Comparing with the results of numerical simulations, we demonstrate that both the diffusive and the localized regime are well represented by the analytical approximations over a wide range of the energy spectrum. The approach works well for both metallic and semiconducting nanotubes and nanoribbons but breaks down near the edge states of zigzag ribbons.
description: accepted for publication in New J. Phys
Gene expression prediction: A machine learning approach
Creators: name: Okoro, Paul
name: Schubert, Ryan
name: Luke, Amy
name: Dugas, Lara
name: Wheeler, Heather
Publisher: name: F1000 Research Limited
Year: 2019

description: Tremendous progress in understanding and unravelling genetic predictors of complex traits have been made through genome-wide association studies (GWAS) and transcriptome association methods like PrediXcan. However, these genomic successes were largely achieved in populations of European ancestry; thereby creating disparity in the applicability of these results in other ancestry populations. We have shown that genetic predictors of gene expression built in one continental population do not perform as well when applied to another. Therefore our goal is to use machine learning algorithms to build gene expression prediction models that are specially optimized for African-origin populations and thus broaden the applicability of PrediXcan to diverse populations. The models will be useful to researchers carrying out genomic studies in African populations and will enhance our knowledge of biological mechanisms associated with disease in all populations.
title: First Trials On The Selection Of A Sorting Grid In The Commercial Fishery For Brown Shrimps
Creators: name: Wienbeck, H.
Publisher: name: ASC 1997 - FF
Year: 2024
Subjects: Fisheries and aquaculture
Technologies and data

description: No abstracts are to be cited without prior reference to the author.Comparative fishing trials were conducted in the river Elbe estuary using 9 m commercial brown shrimp beam trawls. To avoid the bycatch of fish a metal sorting grid of the Nordmore type was used. The elliptical grid was constructed of 8 mm stainless steel bars with a spacing of20 mm between the bars and housed in a cylindrical frame of 0.8 m diameter. The inclination of the grid was 45 degrees.
Cost burden of breakthrough hemolysis in patients with paroxysmal nocturnal hemoglobinuria receiving ravulizumab versus eculizumab
Creators: name: Tomazos, Ioannis
name: J. Rafael Sierra
name: Johnston, Karissa M.
name: Cheung, Antoinette
name: Brodsky, Robert A.
name: Weitz, Ilene C.
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Medicine
subject: Ecology
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Objectives: Although complement inhibition is highly effective, patients with paroxysmal nocturnal hemoglobinuria (PNH) may experience intravascular breakthrough hemolysis (BTH). Underlying causes may include elevated free C5, pregnancy, or non-pregnancy complement-activating conditions (e.g. infections). This study compared BTH-related resource utilization and costs in PNH patients treated with eculizumab versus ravulizumab. Methods: A cost model was developed using data from a targeted literature review and a survey of experienced clinicians. Costs associated with BTH episodes were calculated by cause and weighted by the proportion attributed to each cause and the cost of treating each episode. The model captured direct medical costs in 2018 US dollars. Annual BTH-related healthcare resource utilization was also calculated. Results: BTH episodes in the literature were commonly associated with elevated lactate dehydrogenase and aspartate aminotransferase, hemoglobinuria, transfusion needs, and/or recurrence of PNH symptoms. The majority of BTH management costs in eculizumab-treated patients related to changing from the approved dosing regimen following an episode of BTH, rather than acute management. No ongoing dosing changes were expected for ravulizumab-treated patients following episodes of BTH, substantially reducing its ongoing management costs. Resource utilization was greater for eculizumab-treated patients than ravulizumab-treated patients due to higher incidence of BTH, and risk of elevated free C5-related BTH. Total incremental cost was substantially lower for ravulizumab- vs eculizumab-treated patients ($407 vs $9379); results were consistent when pregnant women were not included ($386 vs $3472). Conclusion: Overall resource use and costs for BTH are estimated to be lower for PNH patients receiving ravulizumab compared with eculizumab.
On the Outage Capacity of a Practical Decoder Accounting for Channel Estimation Inaccuracies
Creators: name: Piantanida, Pablo
name: Sadough, Sajad
name: Duhamel, Pierre
Publisher: name: arXiv
Year: 2007
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: The optimal decoder achieving the outage capacity under imperfect channel estimation is investigated. First, by searching into the family of nearest neighbor decoders, which can be easily implemented on most practical coded modulation systems, we derive a decoding metric that minimizes the average of the transmission error probability over all channel estimation errors. Next, we specialize our general expression to obtain the corresponding decoding metric for fading MIMO channels. According to the notion of estimation-induced outage (EIO) capacity introduced in our previous work and assuming no channel state information (CSI) at the transmitter, we characterize maximal achievable information rates, using Gaussian codebooks, associated to the proposed decoder. In the case of uncorrelated Rayleigh fading, these achievable rates are compared to the rates achieved by the classical mismatched maximum-likelihood (ML) decoder and the ultimate limits given by the EIO capacity. Numerical results show that the derived metric provides significant gains for the considered scenario, in terms of achievable information rates and bit error rate (BER), in a bit interleaved coded modulation (BICM) framework, without introducing any additional decoding complexity.
description: Submitted to IEEE Transactions on Communications, July 2007
Antioxidant and anticancer activities of freshwater green algae, Cladophora glomerata and  Microspora floccosa,  from Nan River in northern Thailand
Creators: name: Warawut Chulalaksananukul
name: Ratiphan Laungsuwon
Publisher: name: Maejo University
Year: 2013
Subjects: Cladophora glomerata,Microspora floccose,total phenolic content,antioxidant activity,anticancer activity

description: 2, 7, Maejo International Journal of Science and Technology
Photo-emission signatures of coherence breakdown in Kondo alloys: dynamical mean-field theory approach
Creators: name: Poudel, Bishal
name: Lacroix, Claudine
name: Zwicknagl, Gertrud
name: Burdin, Sébastien
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the Kondo alloy model on a square lattice using dynamical mean-field theory (DMFT) for Kondo substitution and disorder effects, together with static mean-field approximations. We computed and analyzed photoemission properties as a function of electronic filling $n_c$, Kondo impurity concentration $x$, and strength of Kondo temperature $T_K$. We provide a complete description of the Angle Resolved Photoemission Spectroscopy (ARPES) signals expected in the paramagnetic Kondo phases. By analyzing the Fermi surface, we observe the Lifshitz-like transition predicted previously for strong $T_K$ at $x=n_c$ and we discuss the evolution of the dispersion from the dense coherent to the dilute Kondo regimes. At smaller $T_K$, we find that this transition marking the breakdown of coherence at $x=n_c$ becomes a crossover. However, we identify another transition at a smaller concentration $x^\star$ where the effective mass continuously vanishes. $x^\star$ separates the one-branch and the two-branches ARPES dispersions characterizing respectively dilute and dense Kondo paramagnetic regimes. The $x-T_K$ phase diagrams are also described, suggesting that the transition at $x^\star$ might be experimentally observable since magnetically ordered phases are stabilized at much lower $T_K$. Fermi surface reconstructions in antiferromagnetic and ferromagnetic phases are also discussed.
description: 25 pages, 9 figures, submitted to New Journal of Physics
title: Experiences In Making Acoustic Measurements In A Mesocosm With Calanus Finmarchicus
Creators: name: Knutsen, Tor
name: Foote, Kenneth G.
Publisher: name: ASC 1997 - FF
Year: 2024
Subjects: Fisheries and aquaculture
Technologies and data

description: No abstracts are to be cited without prior reference to the author.In connection with a larger study of the effects of nutrification and turbulence on primary and secondary production, acoustic measurements have been made in the water volume defined by floating, vertically oriented, cylindrical enclosures, with flexible but impermeable walls, called mesocosms. Nominal diameters and greatest depths in the tapered bottom region are 2 and 9 m, respectively. The mesocosms contain rather small quantities of zooplankton, of which Calanus finmarchicus is the organism of primary interest in the acoustic work. In fact, a range of scatterers were visualized, including krill, smaller organisms, and, most likely, hydrographic features as well as the wall of the mesocosm, complicating recognition and quantification of Calanus finmarchicus. The density of this copepod in stages·I-VI, reckoned in orders of magnitude, is 10-1000 animals per cubic meter, the precise figure depending on the particular mesocosm. An attempt was made to quantify the scatterers by echo integration. Measurements were made with the SIMRAD EK500 echo sounder, with narrowband transducers operating at 119, 200, and 714 kHz. Postprocessing was accomplished with the Bergen Echo Integrator. While preliminary, limited results are not demonstrably unambiguous, the observations and associated measurement experiences may prove valuable in like future investigations.
title: Flow Measurements In A Cod-End
Creators: name: Thiele, Wilfried
name: Kroeger, Michael
name: Gau, Steffen
name: Hopp, Martin
name: Klüber, Uwe
Publisher: name: ASC 1997 - FF
Year: 2024
Subjects: Fisheries and aquaculture
Technologies and data

description: No abstracts are to be cited without prior reference to the author.The flow through a trawl is very important for the catchability and it is also responsible for the selectivity of the gear. Investigations by other scientists show that the flow through a trawl is decreasing up to 30 % of the trawling speed. Measurements of the flow by using the Scanmar speed sensor were carried out inside and outside of a selectivity cod-end. The cod-end was equipped with a ,,hooped' cover and sorting grid in the upper part.
Close-coupled model of Feshbach resonances in ultracold $^3$He* and $^4$He* atomic Collisions
Creators: name: Hirsch, T. M. F.
name: Cocks, D. G.
name: Hodgman, S. S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Helium atoms in the metastable $2^3{S_{1}}$ state (He$^*$) have unique advantages for ultracold atomic experiments. However, there is no known accessible Feshbach resonance in He$^*$, which could be used to manipulate the scattering length and hence unlock several new experimental possiblities. Previous experimental and theoretical studies for He$^*$ have produced contradictory results. We aimed to resolve this discrepancy with a theoretical search for Feshbach resonances, using a new close-coupled model of He$^*$ collisions in the presence of an external magnetic field. Several resonances were detected and the existing literature discrepancy was resolved. Although none of the resonances identified are readily experimentally useable, an interesting non-Feshbach scattering length variation with magnetic field was observed in heteronuclear collisions, at field strengths that are experimentally accessible.
description: 8 pages, 4 figures
Tube erosion in fluidized beds
Creators: name: Zhu, Jingxu (Jesse)
Publisher: name: University of British Columbia
Year: 2010

description: Heat transfer tubes suffer erosion when immersed in fluidized beds. This has caused problems, especially in fluidized bed combustors. The mechanism of erosion for horizontal tubes in fluidized beds is not well understood. The purpose of this study was to investigate the erosion mechanism in fluidized beds and to investigate the influence of operating parameters and the mechanical properties of the particles and tube materials. Horizontal tube erosion tests were carried out in a room temperature three-dimensional fluidized bed with a cross-section of 216 mm by 203 mm and height of 1.52 m. Sample rings of ten different materials were mounted on a solid bar and were weighed before and after each test to determine the erosion rate. The parameters tested were particle size (0.30 to 1.51 mm), particle sphericity (0.84 to 1.0), particle density, particle hardness, superficial air velocity (0.88 to 2.52 m/s), tube diameter (15 mm to 32 mm), tube configuration and material mechanical properties. Two additional types of experiments were also conducted to help understand the mechanism of erosion. In one particles were dropped freely in an empty column to impact on test specimens at different velocities determined by the dropping distance, in order to investigate erosion due to solid particle impact under known conditions. In the other the particle movement was filmed in the vicinity of a horizontal tube in a two-dimensional fluidized bed in order to investigate the particle flow pattern around a tube. A small number of tests were also conducted at high temperatures. The erosion of a horizontal tube in fluidized beds was found to be caused mainly by the impact of solid particles on the lower surface. Erosion was found to be strongly dependent on the particle impact velocity, which is closely related to the void (bubble or slug) rise velocity. The void rise velocity, in turn, is determined by the mean void size which depends on the superficial air velocity, column size and other fluidizing conditions. Particle diameter also has a strong influence on erosion. The target material Young's modulus appears to be the major mechanical property which is closely related to the erosion rate caused by solid impact erosion. Of the materials tested, all non-ferrous metals suffer much more erosion than ferrous metals. Localized high particle velocities due to jets and at bends or near feed points can be extremely harmful. The mechanism of erosion caused by low velocity (< 6m/s) solid particle impacts appears to be different than that caused by high velocity (> 30m/s) impacts reported in the literature, although there are some similarities in trends. The erosion at low impact velocities appears to be mainly due to a surface fatigue process, which, instead of plastically deforming a small amount of target material for every impact, deforms the target materials in the elastic range and causes them to crack on or underneath the surface leading to removal of materials.
The water-ice line as a birthplace of planets: Implications of a species-dependent dust fragmentation threshold
Creators: name: Müller, Jonas
name: Savvidou, Sofia
name: Bitsch, Bertram
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The thermodynamic structure of protoplanetary discs is determined by dust opacities, which depend on the size of the dust grains and their chemical composition. In the inner regions, the grain sizes are regulated by the level of turbulence (e.g. $α$ viscosity) and by the dust fragmentation velocity that represents the maximal velocity that grains can have at a collision before they fragment. Here, we perform self-consistently calculated 2D hydrodynamical simulations that consider a full grain size distribution of dust grains with a transition in the dust fragmentation velocity at the water-ice line. This approach accounts for the results of previous particle collision laboratory experiments, in which silicate particles typically have a lower dust fragmentation velocity than water-ice particles. Furthermore, we probe the effects of variations in the water abundance, the dust-to-gas ratio, and the turbulence parameter on the disc structure. For the discs with a transition in the dust fragmentation velocity at the water-ice line, we find a narrow but striking zone of planetary outward migration, including for low viscosities. In addition, we find a bump in the radial pressure gradient profile that tends to be located slightly inside the ice line. Both of these features are present for all tested disc parameters. Thus, we conclude that the ice line can function both as a migration trap, which can extend the growth times of planets before they migrate to the inner edge of the protoplanetary disc, and as a pressure trap, where planetesimal formation can be initiated or enhanced.
description: Accepted by A&A, 13 pages, 17 figures
Le Regioni e gli enti locali nel processo decisionale europeo
Creators: name: Luchena, Giovanni
name: Teotonico, Vittorio
Publisher: name: Euro-Balkan Law and Economics Review
Year: 2019
Subjects: Regioni; Enti locali; Unione europea; recepimento interno

description: Despite the fact that over the years the European institutions have abandoned the attitude of indifference towards regional (and local) levels of government, the mediation of State law still seems necessary to adequately capture the opportunities to participate offered by the supranational legal system. From this emerges the need for a legal analysis focused mainly on the plan of internal regulatory developments. In Italy, the numerous reforms introduced on this matter still do not fully meet the need to protect the value of territorial autonomy beyond State borders, especially because of the persistent failure of the Senate to transform into a federal chamber.
description: Euro-Balkan Law and Economics Review, N. 1 (2019): Fascicolo 1
A New Algorithm to Detect Occluded Face from a Head Viewpoint using Hough Transform and Skin Ratio
Creators: name: Theekapun CHAROENPONG, Patarida SANITTHAI
Publisher: name: Walailak University
Year: 2015
Subjects: Surveillance system, multiple viewpoint occluded face detection, helmet detection, mask detection

description: 1, 12, Walailak Journal of Science and Technology
Anomalous escape governed by thermal 1/f noise
Creators: name: Goychuk, I.
name: Hanggi, P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We present an analytic study for subdiffusive escape of overdamped particles out of a cusp-shaped parabolic potential well which are driven by thermal, fractional Gaussian noise with a $1/ω^{1-α}$ power spectrum. This long-standing challenge becomes mathematically tractable by use of a generalized Langevin dynamics via its corresponding non-Markovian, time-convolutionless master equation: We find that the escape is governed asymptotically by a power law whose exponent depends exponentially on the ratio of barrier height and temperature. This result is in distinct contrast to a description with a corresponding subdiffusive fractional Fokker-Planck approach; thus providing experimentalists an amenable testbed to differentiate between the two escape scenarios.
Stato dell’arte e prospettive della cooperazione intercomunale in Italia. Brevi note a margine di  “L’Unione (non) fa la forza? Alcune evidenze preliminari sull’associazionismo comunale in Italia” a cura di Stefano Manestra, Giovanna Messina e Anna Peta (2018)
Creators: name: Longhi, Luca
Publisher: name: Euro-Balkan Law and Economics Review
Year: 2019

description: Euro-Balkan Law and Economics Review, N. 1 (2019): Fascicolo 1
Performance of Some Evapotranspiration Equations in an Arid Region
Creators: name: Mohammad Mehdi HEYDARI, Ali ABBASI
Publisher: name: Walailak University
Year: 2015
Subjects: Qom province, evapotranspiration, statistical indicators, FAO Penman Monteith, Blaney-Criddle, pan evaporation

description: 1, 12, Walailak Journal of Science and Technology
title: Abundance Estimation Of Norwegian Spring Spawning Herring Wintering In The Vestfjord System, December 1996
Creators: name: Foote, Kenneth G.
name: Ostrowski, Marek
name: Røttingen, Ingolf
name: Slotte, Aril
Publisher: name: ASC 1997 - FF
Year: 2024
Subjects: Fisheries and aquaculture
Technologies and data

description: No abstracts are to be cited without prior reference to the author.The spawning stock of Norwegian spawning herring has been surveyed when wintering in the Vestfjord, Tysfjord, and Ofotfjord, in northern Norway in December 1996. The basic method is that of echo integration, with compensation for acoustic extinction. Physical capture has been effected by means of the Multisampler pelagic trawl, which allows remote opening and closing of each of three codends at arbitrary depths. This has shown essentially thorough mixing of the dominant year classes except in the two fjord arms, where the samples contained a larger proportion of older fish (1983 year class). Geostatistics has been employed to describe the spatial structure and to provide an estimate of variance. Data quality control procedures have been performed and are described.
Phase Transition of Two-Dimensional Ferroelectric and Paraelectric Ga2O3 Monolayer: A Density Functional Theory and Machine-Learning Study
Creators: name: Zhao, Junlei
name: Byggmastar, Jesper
name: Zhang, Zhaofu
name: Djurabekova, Flyura
name: Nordlund, Kai
name: Hua, Mengyuan
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Ga2O3 is a wide-band-gap semiconductor of great interest for applications in electronics and optoelectronics. Two-dimensional (2D) Ga2O3 synthesized from top-down or bottom-up processes can reveal brand new heterogeneous structures and promising applications. In this paper, we study phase transitions among three low-energy stable Ga2O3 monolayer configurations using density functional theory and a newly developed machine-learning Gaussian approximation potential, together with solid-state nudged elastic band calculations. Kinetic minimum energy paths involving direct atomic jump as well as concerted layer motion are investigated. The low phase transition barriers indicate feasible tunability of the phase transition and orientation via strain engineering and external electric fields. Large-scale calculations using the newly trained machine-learning potential on the thermally activated single-atom jumps reveal the clear nucleation and growth processes of different domains. The results provide useful insights to future experimental synthesis and characterization of 2D Ga2O3 monolayers.
description: 10 pages, 7 figures, under review
Energetic and Entropic Analysis of Mirror Symmetry Breaking Processes in a Recycled Microreversible Chemical System
Creators: name: Plasson, Raphael
name: Bersini, Hugues
Publisher: name: arXiv
Year: 2008
Subjects: subject: Biomolecules (q-bio.BM)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: Understanding how biological homochirality emerged remains a challenge for the researchers interested in the origin of life. During the last decades, stable non-racemic steady states of nonequilibrium chemical systems have been discussed as a possible response to this problem. In line with this framework, a description of recycled systems was provided in which stable products can be activated back to reactive compounds. The dynamical behaviour of such systems relies on the presence of a source of energy, leading to the continuous maintaining of unidirectional reaction loops. A full thermodynamic study of recycled systems, composed of microreversible reactions only, is presented here, showing how the energy is transferred and distributed through the system, leading to cycle competitions and the stabilization of asymmetric states.
description: 12 pages, 8 figures, 2 tables
Nonadiabatic charge pumping in a one-dimensional system of noninteracting electrons by an oscillating potential
Creators: name: Agarwal, Amit
name: Sen, Diptiman
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Using a tight-binding model, we study one-parameter charge pumping in a one-dimensional system of non-interacting electrons. An oscillating potential is applied at one site while a static potential is applied in a different region. Using Floquet scattering theory, we calculate the current up to second order in the oscillation amplitude and exactly in the oscillation frequency. For low frequency, the charge pumped per cycle is proportional to the frequency and therefore vanishes in the adiabatic limit. If the static potential has a bound state, we find that such a state has a significant effect on the pumped charge if the oscillating potential can excite the bound state into the continuum states or vice versa. Finally, we use the equation of motion for the density matrix to numerically compute the pumped current for any value of the amplitude and frequency. The numerical results confirm the unusual effect of a bound state.
description: 8 pages including 5 figures; added some references; this is the published version
L’invisibilità dei diritti: riflessioni a proposito del ‘dovere di morire’
Creators: name: Mai, Laura
Publisher: name: Euro-Balkan Law and Economics Review
Year: 2019
Subjects: Human Rights; Life; Death; Freedom

description: The following reflections summarize the current theme of human rights, the right-duty to die and its configurability from the point of view of the general theory of law and from the perspective of Christian bioethics. Where can freedom go? What is right and what is not? The claim of the new rights takes the form of an ever stronger demand for justice. The interruption of health care despite the demand for life has meant that death has lived and life has died. This new legal phenomenon has inevitable and paradoxical consequences: freedom and the right to die become a duty.
description: Euro-Balkan Law and Economics Review, N. 1 (2019): Fascicolo 1